Operation method of device in wireless communication system, and device using method

Abstract

An operation method of a device in a wireless communication system, and the device are provided. The device receives time division duplex (TDX) configuration information informing of a link direction and receives type configuration information informing of a full duplex (FD) type or a half duplex (HD) type. Here, the FD type is a duplex type capable of performing both an uplink operation and a downlink operation by using different frequency bands within a slot, and the HD type is a duplex type capable of performing an uplink operation or a downlink operation within a slot. For a specific slot including symbols having different link directions, the type configuration information independently informs of the FD type or the HD type for the symbols having different link directions.

Description

Method of operating a device in a wireless communication system and a device using the method

[0001] The present disclosure relates to a method of operating a device in a wireless communication system and a device using the method.

[0002] As more and more communication devices demand greater communication capacity, the need for improved mobile broadband communications over existing radio access technology (RAT) is emerging. Furthermore, massive Machine Type Communications (MTC), which connects numerous devices and objects to provide diverse services anytime, anywhere, is also a key issue to be considered in next-generation communications. Furthermore, communication system design that considers reliability and latency-sensitive services / terminals is being discussed. The introduction of next-generation radio access technologies that take into account enhanced mobile broadband communications, massive MTC, and URLLC (Ultra-Reliable and Low Latency Communication) is being discussed, and for convenience, these technologies are referred to as new RAT or NR in this disclosure.

[0003] NR can perform full duplex (FD) operation. When performing FD operation, downlink reception and uplink transmission can be performed simultaneously in a specific time resource. This is different from half duplex (HD) operation, which can perform only one of downlink reception and uplink transmission in a specific time resource. For FD operation, i) some frequency resources in the same time resource can be allocated as downlink subbands and other some frequency resources as uplink subbands, or ii) frequency resources that can be used for both downlink reception and uplink transmission in the same time resource can be allocated.

[0004] Meanwhile, when the cell operates as an FD, the terminal is instructed with information about the time resources during which the cell operates as an FD, and can determine the FD operation time resources from this.

[0005] To direct time resources operating as FDs, it is necessary to determine the minimum granularity of the instructions. Two aspects must be considered.

[0006] First, the coexistence of FD symbols capable of performing FD operations and non-FD symbols (e.g., HD symbols) capable of performing non-FD operations (e.g., HD operations) within a single slot is undesirable when considering the signal / channel transmission / reception method and the operational complexity of the terminal. Considering this aspect, it may be desirable to designate FD operation time resources using slots as the minimum unit.

[0007] Second, if a downlink symbol, a flexible symbol, and / or an uplink symbol exist together within a slot, the flexible symbol can be used for either the downlink or the uplink. That is, a slot may contain symbols with different link directions, and in this case, it may be necessary to indicate the FD operation time resource using a symbol as the minimum unit.

[0008] Considering these aspects, a method for directing FD operation time resources and a method and device for operating accordingly are required.

[0009] The technical problem to be solved by the present disclosure is to provide a method of operating a device in a wireless communication system and a device using the method.

[0010] A method for operating a device in a wireless communication system and a device using the method are provided. According to the method, a terminal receives TDD (time division duplex) configuration information indicating a link direction from a base station, and receives type configuration information indicating whether the terminal is a full duplex (FD) type or a half duplex (HD) type. Here, the FD type is a duplex type that can simultaneously perform an uplink operation and a downlink operation using different frequency bands within a slot, and the HD type is a duplex type that can perform an uplink operation or a downlink operation within a slot. The type configuration information independently indicates the FD type or the HD type for symbols having different link directions, for a specific slot including symbols having different link directions.

[0011] In another aspect, a terminal, device, or computer-readable recording medium for executing the above method is provided.

[0012] In another aspect, a method of operating a base station and a base station using the method are provided. According to the method of operating the base station, the base station transmits to the terminal TDD (time division duplex) configuration information that informs the terminal of a link direction, and transmits to the terminal type configuration information that informs the terminal of whether the type is a full duplex (FD) type or a half duplex (HD) type, wherein the FD type is a duplex type that can simultaneously perform an uplink operation and a downlink operation using different frequency bands within a slot, and the HD type is a duplex type that can perform an uplink operation or a downlink operation within a slot, and the type configuration information independently informs the FD type or the HD type for symbols having different link directions, for a specific slot including symbols having different link directions.

[0013] According to the method according to the present disclosure, by basically indicating FD operation time resource information on a slot-by-slot basis, unnecessary transitions between FD symbols and non-FD symbols within a slot are avoided, and when symbols with different link directions (downlink, flexible, uplink) coexist within a specific slot, the FD type and non-FD type can be independently indicated according to the link direction. Therefore, there is an advantageous effect of increasing communication efficiency and preventing unnecessary interference.

[0014] Figure 1 illustrates a wireless communication system to which the present disclosure can be applied.

[0015] Figure 2 is a block diagram showing a radio protocol architecture for a user plane.

[0016] Figure 3 is a block diagram showing the wireless protocol structure for the control plane.

[0017] Figure 4 illustrates the system architecture of a New Generation Radio Access Network (NG-RAN) to which NR is applied.

[0018] Figure 5 illustrates the functional division between NG-RAN and 5GC.

[0019] Figure 6 illustrates a frame structure that can be applied in NR.

[0020] Figure 7 illustrates the slot structure of an NR frame.

[0021] Figure 8 illustrates a core set.

[0022] Figure 9 illustrates an example of a frame structure for a new wireless access technology.

[0023] Figure 10 illustrates the structure of a self-contained slot.

[0024] Figure 11 illustrates physical channels and general signal transmission.

[0025] Figure 12 shows examples of how to apply full duplex within a carrier.

[0026] Figure 13 shows an example in which time resources operating in HD (half duplex) and time resources operating in FD (full duplex), such as SBFD or SSFD, coexist.

[0027] Figure 14 shows examples of a first time resource, a second time resource, a first frequency resource, and a second frequency resource.

[0028] Figure 15 illustrates another example of a first time resource, a second time resource, a first frequency resource, and a second frequency resource.

[0029] Figure 16 shows an example of SBFD symbol resource configuration when N=2 (i.e., period = (P+P2)*2 msec) and N'=0 (i.e., offset = (P+P2)*0 = 0 msec).

[0030] Figure 17 shows an example of SBFD symbol resource configuration when N=2 (i.e., period = (P+P2)*2 msec), N'=0 (i.e., offset = (P+P2)*0 = 0 msec), and TDD pattern = pattern2.

[0031] Figure 18 illustrates the U / F / D direction type.

[0032] Figure 19 illustrates an operation method of a terminal in a wireless communication system.

[0033] Figure 20 illustrates a signaling and operation method between a base station and a terminal.

[0034] Figure 21 illustrates a wireless device applicable to the present specification.

[0035] Figure 22 illustrates an example of a signal processing module structure.

[0036] Figure 23 illustrates another example of the structure of a signal processing module within a transmission device.

[0037] FIG. 24 illustrates an example of a wireless communication device according to an implementation example of the present disclosure.

[0038] Figure 25 shows an example of a processor (2000).

[0039] Figure 26 shows an example of a processor (3000).

[0040] Figure 27 illustrates another example of a wireless device.

[0041] Figure 28 shows another example of a wireless device to which the present specification applies.

[0042] Fig. 29 illustrates a communication system (1) applicable to this specification.

[0043] In this specification, “A or B” can mean “only A,” “only B,” or “both A and B.” In other words, “A or B” in this specification can be interpreted as “A and / or B.” For example, “A, B or C” in this specification can mean “only A,” “only B,” “only C,” or “any combination of A, B, and C.”

[0044] As used herein, a slash ( / ) or a comma can mean "and / or." For example, "A / B" can mean "A and / or B." Accordingly, "A / B" can mean "only A," "only B," or "both A and B." For example, "A, B, C" can mean "A, B, or C."

[0045] In this specification, “at least one of A and B” may mean “only A,” “only B,” or “both A and B.” Additionally, in this specification, the expressions “at least one of A or B” or “at least one of A and / or B” may be interpreted identically to “at least one of A and B.”

[0046] Additionally, in this specification, “at least one of A, B and C” can mean “only A,” “only B,” “only C,” or “any combination of A, B and C.” Additionally, “at least one of A, B or C” or “at least one of A, B and / or C” can mean “at least one of A, B and C.”

[0047] Additionally, parentheses used herein may mean “for example.” Specifically, when indicated as “control information (PDCCH),” “PDCCH” may be proposed as an example of “control information.” In other words, “control information” in this specification is not limited to “PDCCH,” and “PDCCH” may be proposed as an example of “control information.” Furthermore, even when indicated as “control information (i.e., PDCCH),” “PDCCH” may be proposed as an example of “control information.”

[0048] Technical features individually described in a single drawing in this specification may be implemented individually or simultaneously.

[0049] Figure 1 illustrates a wireless communication system to which the present disclosure may be applied. This may also be referred to as an Evolved-UMTS Terrestrial Radio Access Network (E-UTRAN) or a Long Term Evolution (LTE) / LTE-A system.

[0050] E-UTRAN includes a base station (BS) 20 that provides a control plane and a user plane to a user equipment (UE) 10. The UE 10 may be fixed or mobile, and may be referred to by other terms such as a mobile station (MS), a user terminal (UT), a subscriber station (SS), a mobile terminal (MT), a wireless device, or a terminal. The base station (20) refers to a fixed station that communicates with the UE 10, and may be referred to by other terms such as an evolved-NodeB (eNB), a base transceiver system (BTS), or an access point.

[0051] Base stations (20) can be connected to each other via the X2 interface. The base station (20) is connected to an EPC (Evolved Packet Core, 30) via the S1 interface, more specifically, to an MME (Mobility Management Entity) via the S1-MME, and to an S-GW (Serving Gateway) via the S1-U.

[0052] The EPC (30) consists of an MME, an S-GW, and a P-GW (Packet Data Network-Gateway). The MME holds information about terminal access and capabilities, and this information is primarily used for terminal mobility management. The S-GW is a gateway with the E-UTRAN as its endpoint, and the P-GW is a gateway with the PDN as its endpoint.

[0053] The layers of the radio interface protocol between the terminal and the network can be divided into L1 (layer 1), L2 (layer 2), and L3 (layer 3) based on the three lower layers of the Open System Interconnection (OSI) standard model, which is widely known in communication systems. Among these, the physical layer belonging to layer 1 provides information transfer service using physical channels, and the RRC (Radio Resource Control) layer located in layer 3 controls radio resources between the terminal and the network. To this end, the RRC layer exchanges RRC messages between the terminal and the base station.

[0054] Figure 2 is a block diagram illustrating the radio protocol architecture for the user plane. Figure 3 is a block diagram illustrating the radio protocol architecture for the control plane. The user plane is a protocol stack for transmitting user data, and the control plane is a protocol stack for transmitting control signals.

[0055] Referring to Figures 2 and 3, the physical layer (PHY layer) provides information transfer services to upper layers using physical channels. The PHY layer is connected to its upper layer, the Medium Access Control (MAC) layer, through a transport channel. Data is transferred between the MAC layer and the PHY layer via the transport channel. Transport channels are classified based on how and with what characteristics data is transmitted over the wireless interface.

[0056] Data travels between different physical layers, i.e., between the physical layers of a transmitter and receiver, via a physical channel. This physical channel can be modulated using Orthogonal Frequency Division Multiplexing (OFDM) and utilizes time and frequency as radio resources.

[0057] The MAC layer's functions include mapping between logical channels and transport channels, and multiplexing / demultiplexing MAC service data units (SDUs) belonging to logical channels into transport blocks provided as physical channels on the transport channels. The MAC layer provides services to the RLC (Radio Link Control) layer through logical channels.

[0058] The functions of the RLC layer include concatenation, segmentation, and reassembly of RLC SDUs. To guarantee the various Quality of Service (QoS) required by radio bearers (RBs), the RLC layer provides three operating modes: Transparent Mode (TM), Unacknowledged Mode (UM), and Acknowledged Mode (AM). AM RLC provides error correction through automatic repeat request (ARQ).

[0059] The RRC (Radio Resource Control) layer is defined only in the control plane. The RRC layer is responsible for controlling logical, transport, and physical channels, including the configuration, reconfiguration, and release of radio bearers. An RB is a logical path provided by Layer 1 (PHY layer) and Layer 2 (MAC layer, RLC layer, PDCP layer) for data transmission between a terminal and the network.

[0060] The functions of the Packet Data Convergence Protocol (PDCP) layer in the user plane include the transmission of user data, header compression, and ciphering. The functions of the Packet Data Convergence Protocol (PDCP) layer in the control plane include the transmission of control plane data and encryption / integrity protection.

[0061] Establishing an RB refers to the process of defining the characteristics of the radio protocol layer and channel to provide a specific service, and setting specific parameters and operating methods for each. RBs can be further divided into two types: signaling RBs (SRBs) and data RBs (DRBs). SRBs are used as a conduit for transmitting RRC messages in the control plane, while DRBs are used as conduits for transmitting user data in the user plane.

[0062] When an RRC connection is established between the RRC layer of the terminal and the RRC layer of the E-UTRAN, the terminal is in an RRC connected state, otherwise it is in an RRC idle state.

[0063] Downlink transmission channels that transmit data from the network to the terminal include the Broadcast Channel (BCH), which transmits system information, and the downlink Shared Channel (SCH), which transmits user traffic or control messages. Traffic or control messages for downlink multicast or broadcast services may be transmitted through the downlink SCH or a separate downlink Multicast Channel (MCH). Meanwhile, uplink transmission channels that transmit data from the terminal to the network include the Random Access Channel (RACH), which transmits initial control messages, and the uplink Shared Channel (SCH), which transmits user traffic or control messages.

[0064] Logical channels that are located above the transport channel and are mapped to the transport channel include BCCH (Broadcast Control Channel), PCCH (Paging Control Channel), CCCH (Common Control Channel), MCCH (Multicast Control Channel), and MTCH (Multicast Traffic Channel).

[0065] A physical channel consists of multiple OFDM symbols in the time domain and multiple subcarriers in the frequency domain. A single subframe consists of multiple OFDM symbols in the time domain. A resource block is a resource allocation unit and consists of multiple OFDM symbols and multiple subcarriers. Additionally, each subframe can use specific subcarriers of specific OFDM symbols (e.g., the first OFDM symbol) of the subframe for the Physical Downlink Control Channel (PDCCH), i.e., the L1 / L2 control channel. A Transmission Time Interval (TTI) is a unit time for subframe transmission.

[0066] Below, we describe new radio access technology (new RAT, NR).

[0067] As more and more communication devices demand greater communication capacity, the need for improved mobile broadband communications over existing radio access technology (RAT) is emerging. Furthermore, massive Machine Type Communications (MTC), which connects numerous devices and objects to provide diverse services anytime, anywhere, is also a key issue to be considered in next-generation communications. Furthermore, communication system design that considers reliability and latency-sensitive services / terminals is being discussed. The introduction of next-generation radio access technologies that take enhanced mobile broadband communications, massive MTC, and URLLC (Ultra-Reliable and Low Latency Communication) into account is being discussed. For convenience, these technologies are referred to herein as new RAT or NR.

[0068] Figure 4 illustrates the system architecture of a New Generation Radio Access Network (NG-RAN) to which NR is applied.

[0069] Referring to FIG. 4, the NG-RAN may include gNBs and / or eNBs that provide user plane and control plane protocol termination to the UE. FIG. 4 illustrates a case where only gNBs are included. The gNBs (eNBs) are connected to each other via Xn interfaces. The gNBs and eNBs are connected to the 5th generation core network (5G Core Network: 5GC) via the NG interface. More specifically, they are connected to the access and mobility management function (AMF) via the NG-C interface, and to the user plane function (UPF) via the NG-U interface.

[0070] Figure 5 illustrates the functional division between NG-RAN and 5GC.

[0071] Referring to FIG. 5, the gNB can provide functions such as inter-cell radio resource management (Inter Cell RRM), radio bearer management (RB control), connection mobility control (Connection Mobility Control), radio admission control (Radio Admission Control), measurement configuration and provision, and dynamic resource allocation. The AMF can provide functions such as NAS security and idle state mobility processing. The UPF can provide functions such as mobility anchoring and PDU processing. The SMF (Session Management Function) can provide functions such as terminal IP address allocation and PDU session control.

[0072] Figure 6 illustrates a frame structure that can be applied in NR.

[0073] Referring to FIG. 6, a radio frame (hereinafter abbreviated as a frame) can be used for uplink and downlink transmission in NR. A frame has a length of 10 ms and can be defined as two 5 ms half-frames (Half-Frames, HF). A half-frame can be defined as five 1 ms sub-frames (Subframes, SF). A sub-frame can be divided into one or more slots, and the number of slots in a sub-frame depends on the Subcarrier Spacing (SCS). Each slot contains 12 or 14 OFDM (A) symbols depending on the CP (cyclic prefix). When a normal CP is used, each slot contains 14 symbols. When an extended CP is used, each slot contains 12 symbols. Here, the symbols can include an OFDM symbol (or a CP-OFDM symbol), an SC-FDMA symbol (or a DFT-s-OFDM symbol).

[0074] Table 1 below illustrates the subcarrier spacing configuration μ (also referred to as subcarrier spacing configuration).

[0075] [Table 1]

[0076]

[0077] Table 2 below shows the number of slots (N) in a frame according to the subcarrier spacing setting μ. frameμ slot ), number of slots in a subframe (N subframeμ slot ), number of symbols in the slot (N slot symb ) are examples.

[0078] [Table 2]

[0079]

[0080] In Fig. 6, examples are given for μ=0, 1, 2, and 3.

[0081] Table 2-1 below illustrates that when extended CP is used, the number of symbols per slot, the number of slots per frame, and the number of slots per subframe change depending on the SCS.

[0082] [Table 2-1]

[0083]

[0084] In an NR system, OFDM(A) numerologies (e.g., SCS, CP length, etc.) may be set differently between multiple cells that are merged into a single terminal. Accordingly, the (absolute time) interval of a time resource (e.g., SF, slot, or TTI) (conveniently referred to as TU (Time Unit)) consisting of the same number of symbols may be set differently between the merged cells.

[0085] Figure 7 illustrates a slot structure.

[0086] A slot can contain multiple symbols in the time domain. For example, in the case of a normal CP, one slot can contain 14 symbols (or 7 symbols), but in the case of an extended CP, one slot can contain 12 symbols (or 6 symbols). A carrier can contain multiple subcarriers in the frequency domain. A Resource Block (RB) can be defined as multiple (e.g., 12) consecutive subcarriers in the frequency domain. A Bandwidth Part (BWP) can be defined as multiple consecutive (P)RBs in the frequency domain, and can correspond to a single numerology (e.g., SCS, CP length, etc.). A carrier can contain up to N (e.g., 5) BWPs. Data communication is performed through activated BWPs, and only one BWP can be activated for a single terminal. In the resource grid, each element is referred to as a Resource Element (RE), to which one complex symbol can be mapped.

[0087] A PDCCH (physical downlink control channel) may be composed of one or more CCEs (control channel elements) as shown in Table 3 below.

[0088] [Table 3]

[0089]

[0090] That is, the PDCCH can be transmitted through a resource consisting of 1, 2, 4, 8, or 16 CCEs. Here, the CCEs are composed of 6 REGs (resource element groups), and one REG consists of one resource block in the frequency domain and one OFDM (orthogonal frequency division multiplexing) symbol in the time domain.

[0091] Monitoring refers to decoding each PDCCH candidate according to the DCI (downlink control information) format. The terminal monitors a set of PDCCH candidates in one or more core sets (CORESETs, described below) on the active DL BWP of each activated serving cell for which PDCCH monitoring is configured, according to the corresponding search space set.

[0092] In NR, a new unit called a control resource set (CORESET) can be introduced. A terminal can receive PDCCHs in a CORESET.

[0093] Figure 8 illustrates a core set.

[0094] Referring to Figure 8, the coreset is N in the frequency domain. CORESET RB It consists of N resource blocks and is in the time domain. CORESET symb ∈ {1, 2, 3} symbols. N CORESET RB, N CORESET symb can be provided by the base station via upper layer signals. As illustrated in Fig. 8, a core set may include multiple CCEs (or REGs).

[0095] A terminal may attempt PDCCH detection in units of 1, 2, 4, 8, or 16 CCEs within a core set. One or more CCEs for which PDCCH detection can be attempted may be referred to as PDCCH candidates.

[0096] A terminal can be configured with multiple core sets.

[0097] In conventional wireless communication systems (e.g., LTE / LTE-A), the control domain spans the entire system bandwidth used by the base station. Except for some terminals that support only narrow bandwidths (e.g., eMTC / NB-IoT terminals), all terminals must be able to receive radio signals across the entire system bandwidth of the base station to properly receive / decode the control information transmitted by the base station.

[0098] In contrast, NR introduces the aforementioned core set. A core set is a radio resource for control information that a terminal must receive. It can utilize only a portion of the system bandwidth in the frequency domain, rather than the entire bandwidth. Furthermore, it can utilize only a portion of the symbols within a slot in the time domain. The base station can assign a core set to each terminal and transmit control information through the assigned core set. In NR, a terminal can receive control information from the base station without necessarily receiving the entire system bandwidth.

[0099] The core set may include a terminal-specific core set for transmitting terminal-specific control information and a common core set for transmitting control information common to all terminals.

[0100] Meanwhile, in NR, depending on the application field, high reliability may be required, and in such a situation, the target block error rate (BLER) for downlink control information (DCI) transmitted through a downlink control channel (e.g., physical downlink control channel: PDCCH) may be significantly lower than in the prior art. One example of a method for satisfying such a requirement requiring high reliability is to reduce the amount of content included in the DCI and / or increase the amount of resources used when transmitting the DCI. In this case, the resources may include at least one of time domain resources, frequency domain resources, code domain resources, and spatial domain resources.

[0101] The following technologies / features can be applied in NR:

[0102] Self-contained subframe structure

[0103] Figure 9 illustrates an example of a frame structure for a new wireless access technology.

[0104] In NR, for the purpose of minimizing latency, a structure in which a control channel and a data channel are time-division multiplexed (TDM) within one TTI, as shown in Fig. 9, can be considered as one of the frame structures.

[0105] In Fig. 9, the hatched area represents a downlink control area, and the black area represents an uplink control area. Unmarked areas can be used for downlink data (DL data) transmission or uplink data (UL data) transmission. A characteristic of this structure is that downlink (DL) transmission and uplink (UL) transmission are sequentially performed within a single subframe, so that DL data can be sent and UL ACK / NACK (Acknowledgement / Not-acknowledgement) can also be received within the subframe. As a result, the time required for data retransmission when a data transmission error occurs is reduced, thereby minimizing the latency of the final data transmission.

[0106] In these data and control TDMed subframe structures, a time gap is required for the base station and terminal to transition from transmission mode to reception mode or from reception mode to transmission mode. To this end, some OFDM symbols at the transition point from DL to UL in the self-contained subframe structure can be set as a guard period (GP).

[0107] Figure 10 illustrates the structure of a self-contained slot.

[0108] In an NR system, a single slot may contain a DL control channel, DL or UL data, and a UL control channel. For example, the first N symbols in a slot may be used to transmit a DL control channel (hereinafter, referred to as a DL control region), and the last M symbols in the slot may be used to transmit a UL control channel (hereinafter, referred to as a UL control region). N and M are each integers greater than or equal to 0. A resource region (hereinafter, referred to as a data region) between the DL control region and the UL control region may be used for DL ​​data transmission or UL data transmission. As an example, the following configuration may be considered. Each section is listed in chronological order.

[0109] 1. DL only configuration

[0110] 2. UL only configuration

[0111] 3. Mixed UL-DL configuration

[0112] - DL area + GP (Guard Period) + UL control area

[0113] - DL control area + GP + UL area

[0114] DL area: (i) DL data area, (ii) DL control area + DL data area

[0115] UL domain: (i) UL data domain, (ii) UL data domain + UL control domain

[0116] In the DL control region, a PDCCH can be transmitted, and in the DL data region, a PDSCH (physical downlink shared channel) can be transmitted. In the UL control region, a PUCCH (physical uplink control channel) can be transmitted, and in the UL data region, a PUSCH (physical uplink shared channel) can be transmitted. In the PDCCH, downlink control information (DCI), such as DL data scheduling information and UL data scheduling information, can be transmitted. In the PUCCH, uplink control information (UCI), such as ACK / NACK (Positive Acknowledgement / Negative Acknowledgement) information for DL ​​data, CSI (Channel State Information) information, and SR (Scheduling Request), can be transmitted. GP provides a time gap when a base station and a terminal switch from transmission mode to reception mode or from reception mode to transmission mode. Some symbols at the time of switching from DL to UL within a subframe can be set as GP.

[0117] Analog Beamforming #1

[0118] In millimeter wave (mmW), the wavelength is shortened, allowing for the installation of multiple antenna elements in the same area. That is, in the 30 GHz band, the wavelength is 1 cm, allowing for a total of 100 antenna elements to be installed in a two-dimensional array at 0.5 wavelength (lambda) intervals on a 5 x 5 cm panel. Therefore, in mmW, multiple antenna elements are used to increase beamforming (BF) gain, thereby increasing coverage or throughput.

[0119] In this case, if there is a transceiver unit (TXRU) that allows transmission power and phase control for each antenna element, independent beamforming is possible for each frequency resource. However, it is not practical in terms of cost to install a TXRU for all 100 or so antenna elements. Therefore, a method of mapping multiple antenna elements to a single TXRU and controlling the direction of the beam with an analog phase shifter is being considered. This analog beamforming method has the disadvantage of being unable to perform frequency-selective beamforming because it can only create one beam direction for the entire band.

[0120] Hybrid beamforming (hybrid BF), which has B TXRUs, which is less than Q antenna elements, can be considered as an intermediate form between digital beamforming (Digital BF) and analog beamforming (Analog BF). In this case, depending on the connection method of the B TXRUs and Q antenna elements, the number of beam directions that can be transmitted simultaneously is limited to B or fewer.

[0121] Analog Beamforming #2

[0122] In NR systems, when multiple antennas are used, a hybrid beamforming technique that combines digital beamforming and analog beamforming is emerging. In this case, analog beamforming (or RF beamforming) performs precoding (or combining) at the RF end, which has the advantage of achieving performance close to digital beamforming while reducing the number of RF chains and D / A (or A / D) converters. For convenience, the hybrid beamforming structure can be expressed as N TXRUs and M physical antennas. Then, the digital beamforming for L data layers to be transmitted from the transmitter can be expressed as an N by L matrix, and the N converted digital signals are converted into analog signals through the TXRU, and then analog beamforming expressed as an M by N matrix is ​​applied.

[0123] System information of an NR system can be transmitted in a broadcasting manner. At this time, analog beams belonging to different antenna panels within one symbol can be transmitted simultaneously, and a method of introducing a beam reference signal (BRS), which is a reference signal (RS) transmitted by applying a single analog beam (corresponding to a specific antenna panel) to measure a channel for each analog beam, is being discussed. The BRS can be defined for multiple antenna ports, and each antenna port of the BRS can correspond to a single analog beam. At this time, unlike the BRS, a synchronization signal or xPBCH can be transmitted by applying all analog beams within an analog beam group so that any terminal can receive it well.

[0124] In NR, a synchronization signal block (SSB, or may be referred to as a synchronization signal and physical broadcast channel (SS / PBCH) in the time domain) may be composed of four OFDM symbols numbered in ascending order from 0 to 3 within the synchronization signal block, and a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a PBCH associated with a demodulation reference signal (DMRS) may be mapped to the symbols. As described above, the synchronization signal block may also be referred to as an SS / PBCH block.

[0125] In NR, multiple synchronization signal blocks can be transmitted at different times, and SSB can be used to perform initial access (IA), serving cell measurement, etc. Therefore, when the transmission timing and resources overlap with other signals, it is desirable to transmit SSB preferentially. To achieve this, the network can broadcast SSB transmission timing and resource information or indicate it through UE-specific RRC signaling.

[0126] NR can perform beam-based transmission and reception operations. If the reception performance of the current serving beam degrades, a process called beam failure recovery (BFR) can be used to find a new beam.

[0127] Since BFR is not a process for declaring an error / failure in the link between the network and the terminal, it can be assumed that the connection with the current serving cell is maintained even when the BFR process is performed. During the BFR process, measurements are performed on different beams set by the network (a beam can be expressed as a CSI-RS port or an SSB (synchronization signal block) index, etc.) and the best beam for the terminal is selected. The terminal can proceed with the BFR process by performing the RACH process associated with the beam with the best measurement result.

[0128] Now, we will describe the Transmission Configuration Indicator (TCI) state. The TCI state can be set for each core set of the control channel, and parameters for determining the terminal's receive (Rx) beam can be determined based on the TCI state.

[0129] For each downlink bandwidth portion (DL BWP) of a serving cell, a terminal may be configured with up to three core sets. Additionally, for each core set, the terminal may be provided with the following information:

[0130] 1) Coreset index p (e.g., one from 0 to 11, where the index of each coreset can be uniquely determined among the BWPs of a serving cell),

[0131] 2) PDCCH DM-RS scrambling sequence initialization value,

[0132] 3) Interval in the time domain of the core set (can be given in symbol units),

[0133] 4) A set of resource blocks,

[0134] 5) CCE-to-REG mapping parameters,

[0135] 6) Antenna port quasi co-location (QCL) information indicating quasi co-location (QCL) information of DM-RS antenna ports for PDCCH reception in each core set (from a set of antenna port quasi co-locations provided by a higher layer parameter called 'TCI-State');

[0136] 7) Indicating the presence or absence of a transmission configuration indication (TCI) field for a specific DCI format transmitted by PDCCH in the core set, etc.

[0137] Let's explain QCL. If the characteristics of the channel through which a symbol on one antenna port is transmitted can be inferred from the characteristics of the channel through which a symbol on another antenna port is transmitted, then the two antenna ports are said to be in quasi-co-location (QCL). For example, if two signals (A and B) are transmitted from the same transmit antenna array with identical / similar spatial filters applied, the two signals may experience identical / similar channel conditions. From the receiver's perspective, if one of the two signals is received, the channel characteristics of the received signal can be used to detect the other signal.

[0138] In this sense, the fact that A and B are QCL may mean that A and B experienced similar channel conditions, and thus, the channel information estimated to detect A is also useful for detecting B. Here, the channel conditions may be defined by, for example, Doppler shift, Doppler spread, average delay, delay spread, spatial reception parameters, etc.

[0139] The 'TCI-State' parameter associates one or two downlink reference signals with a corresponding QCL type (there are QCL types A, B, C, and D, see Table 4).

[0140] [Table 4]

[0141]

[0142] Each 'TCI-State' may include parameters for establishing a quasi-colocation (QCL) relationship between one or two downlink reference signals and a DM-RS port of a PDSCH (or PDCCH), or a CSI-RS port of a CSI-RS resource.

[0143] Meanwhile, in each DL BWP configured for a terminal in a serving cell, the terminal may be provided with up to 10 search space sets. For each search space set, the terminal may be provided with at least one of the following pieces of information:

[0144] 1) Search space set index s (0≤s<40), 2) Association between core set P and search space set s, 3) PDCCH monitoring period and PDCCH monitoring offset (slot unit), 4) PDCCH monitoring pattern within a slot (e.g., indicating the first symbol of the core set within a slot for PDCCH monitoring), 5) Number of slots in which search space set s exists, 6) Number of PDCCH candidates per CCE aggregation level, 7) Information indicating whether search space set s is CSS or USS, etc.

[0145] In NR, core set #0 can be configured by PBCH (or terminal-specific signaling for handover, PSCell configuration, or BWP configuration). The search space (SS) set #0 configured by PBCH can have different monitoring offsets (e.g., slot offset, symbol offset) for each associated SSB. This may be necessary to minimize the search space occasions that the terminal must monitor. Alternatively, it may also be necessary to provide a beam sweeping control / data area that can transmit control / data for each beam so that communication with the terminal can be continuously performed in a situation where the best beam of the terminal dynamically changes.

[0146] Figure 11 illustrates physical channels and general signal transmission.

[0147] Referring to Figure 11, in a wireless communication system, a terminal receives information from a base station via the downlink (DL), and the terminal transmits information to the base station via the uplink (UL). The information transmitted and received between the base station and the terminal includes data and various control information, and various physical channels exist depending on the type and purpose of the information they transmit and receive.

[0148] When a terminal is powered on again from a powered-off state or newly enters a cell, it performs an initial cell search operation, such as synchronizing with the base station (S11). To this end, the terminal receives the PSCH (Primary Synchronization Channel) and SSCH (Secondary Synchronization Channel) from the base station to synchronize with the base station and obtain information such as the cell ID (cell identity). In addition, the terminal can obtain broadcast information within the cell by receiving the PBCH (Physical Broadcast Channel) from the base station. In addition, the terminal can check the downlink channel status by receiving the DL RS (Downlink Reference Signal) during the initial cell search phase.

[0149] (Initial) cell search can be defined as a procedure in which a terminal acquires time and frequency synchronization with a cell and detects the cell ID of the cell. Cell search can be based on the cell's primary synchronization signal, secondary synchronization signal, and PBCH DMRS.

[0150] A terminal that has completed initial cell search can obtain more specific system information by receiving a PDCCH (Physical Downlink Control Channel) and a corresponding PDSCH (Physical Downlink Control Channel) (S12).

[0151] Thereafter, the terminal may perform a random access procedure (Random Access Procedure) to complete connection to the base station (S13-S16). Specifically, the terminal may transmit a preamble through a Physical Random Access Channel (PRACH) (S13) and receive a Random Access Response (RAR) for the preamble through a PDCCH and a corresponding PDSCH (S14). Thereafter, the terminal may transmit a Physical Uplink Shared Channel (PUSCH) using scheduling information in the RAR (S15) and perform a contention resolution procedure (Contention Resolution Procedure) such as a PDCCH and a corresponding PDSCH (which may be considered a process of receiving a contention resolution message) (S16).

[0152] A terminal that has performed the above-described procedure can then perform PDCCH / PDSCH reception (S17) and PUSCH / PUCCH (Physical Uplink Control Channel) transmission (S18) as general uplink / downlink signal transmission procedures. Control information that the terminal transmits to the base station is referred to as UCI (Uplink Control Information). UCI includes HARQ ACK / NACK (Hybrid Automatic Repeat and reQuest Acknowledgement / Negative-ACK), SR (Scheduling Request), CSI (Channel State Information), etc. CSI includes CQI (Channel Quality Indicator), PMI (Precoding Matrix Indicator), RI (Rank Indication), etc. UCI is generally transmitted through PUCCH, but can be transmitted through PUSCH when control information and data must be transmitted simultaneously. In addition, the terminal can aperiodically transmit UCI through PUSCH according to a request / instruction of the network.

[0153] To enable reasonable battery consumption when BA (bandwidth adaptation) is configured, only one uplink BWP and one downlink BWP, or only one downlink / uplink BWP pair, for each uplink carrier can be activated at a time within an active serving cell, while all other BWPs configured in the UE are deactivated. In deactivated BWPs, the UE does not monitor the PDCCH and does not transmit on the PUCCH, PRACH, and UL-SCH.

[0154] For BA, the receive and transmit bandwidth of the terminal need not be as wide as the cell bandwidth and can be adjusted: the width can be commanded to change (e.g., shrinking during periods of low activity to save power), the location in the frequency domain can be moved (e.g., to increase scheduling flexibility), and the subcarrier spacing can be commanded to change (e.g., to allow different services). A subset of the total cell bandwidth of a cell is referred to as a bandwidth part (BWP), and a BA is obtained by setting BWP(s) to the terminal and notifying the terminal which of the set BWPs is currently active. Once a BA is set, the terminal only needs to monitor the PDCCH on one active BWP. That is, there is no need to monitor the PDCCH on the entire downlink frequency of the cell. A BWP inactive timer (independent of the DRX inactive timer described above) is used to switch an active BWP to a default BWP: the timer is restarted upon successful PDCCH decoding, and a switch to the default BWP occurs when the timer expires.

[0155] Below, we describe the integrated access and backhaul link (IAB). For convenience, the proposed approach is based on the new RAT (NR) system. However, the scope of the proposed approach can be expanded to include other systems, such as 3GPP LTE / LTE-A systems, in addition to NR systems.

[0156] One potential technology that aims to enable future cellular network deployment scenarios and applications is support for wireless backhaul and relay links, enabling flexible and very dense deployment of NR cells without the need to proportionally densify the transport network.

[0157] The expected availability of greater bandwidth in NR compared to LTE (e.g., in the mmWave spectrum), along with the native deployment of massive MIMO or multi-beam systems, creates opportunities for the development and deployment of integrated access and backhaul links. This allows for easier deployment of dense networks of self-backhauled NR cells in a more integrated manner by establishing multiple control and data channels / procedures defined to provide connectivity or access to terminals. Such systems are referred to as integrated access and backhaul links (IAB).

[0158] In this disclosure, the following are defined:

[0159] - AC(x): Access link between node(x) and terminal(s).

[0160] - BH(xy): Backhaul link between node(x) and node(y).

[0161] At this time, the node may refer to a DgNB (donor gNB) or a relay node (RN). Here, the DgNB or donor node may be a gNB that provides a function to support backhaul for IAB nodes.

[0162] When relay node 1 and relay node 2 exist, and relay node 1 is connected to relay node 2 via a backhaul link and relays data transmitted and received to relay node 2, relay node 1 is called the parent node of relay node 2, and relay node 2 is called the child node of relay node 1.

[0163] Technical features individually described in a single drawing in this specification may be implemented individually or simultaneously.

[0164] The following drawings are intended to illustrate specific examples of the present specification. The names of specific devices and the names of specific signals, messages, and fields depicted in the drawings are provided for illustrative purposes only, and the technical features of this specification are not limited to the specific names used in the drawings.

[0165] Now, we describe full duplex operation.

[0166] 5G is giving rise to new service types, such as extended reality (XR), AI-based services, and self-driving cars. These services feature dynamic traffic in both downlink (DL) and uplink (UL) directions, and require low latency for traffic transmission (e.g., packets). 5G services will experience explosive growth in traffic to support these diverse new use cases.

[0167] Existing semi-static or dynamic TDD UL / DL configurations suffer from transmission delays and interference between operators. Existing FDD schemes also face limitations in efficient frequency resource utilization in the DL / UL directions. Therefore, the introduction of full-duplex operation within a single carrier is being discussed to achieve low latency and efficient resource utilization in NR.

[0168] Figure 12 shows examples of how to apply full duplex within a carrier.

[0169] Referring to FIG. 12, in the full duplex method, subband-wise full duplex (hereinafter, referred to as subband full duplex or SBFD) as in (a) of FIG. 12 and spectrum-sharing full duplex (hereinafter, referred to as SSFD) as in (b) of FIG. 12 can be considered.

[0170] In the case of SBFD, DL and UL transmission and reception are performed through different frequency resources within the same carrier (e.g., carrier #0). That is, different frequency resources are used for DL ​​and UL for the same time resource.

[0171] In SSFD, DL and UL transmission and reception are performed through the same frequency resources or overlapping frequency resources within the same carrier (e.g., carrier #0). That is, DL and UL can use the same or overlapping frequency resources for the same time resource.

[0172] This full-duplex (FD) operation can also be combined with existing half-duplex (HD) operation. For example, among the time resources used for existing half-duplex-based TDD operation, some of the time resources can be used for full-duplex operation. For example, SBFD or SSFD operation can be performed on the time resources performing full-duplex operation.

[0173] Figure 13 shows examples where time resources operating in HD (half duplex) and time resources operating in FD (full duplex), such as SBFD or SSFD, coexist.

[0174] In Fig. 13(a), some time resources operating in SBFD are indicated as SBFD, and time resources operating in half-duplex are indicated as HD. In Fig. 13(b), some time resources operating in SSFD are indicated as SSFD, and time resources operating in half-duplex are indicated as HD. The unit of the time resource may be, for example, a slot or a symbol.

[0175] In a time resource operating under SBFD, some frequency resources are used as DL resources, while others are used as UL resources. Between the DL and UL frequency resources, there may be a guard subband that is unused for both DL and UL and remains empty. The guard subband may also be referred to by other terms, such as guard frequency resources or guard subcarrier(s).

[0176] In a time resource operating in SSFD, the entire frequency resource can be used for both DL and UL. Alternatively, to reduce the impact of interference (which may be referred to as adjacent carrier interference (ACI)) from other adjacent carriers, some frequency resources at one or both ends of the carrier can be left unused for DL ​​and / or UL. That is, one or both ends of the carrier can be used as guard bands (guard subbands) that are not used for both DL and UL. Alternatively, to reduce the impact of ACI on UL reception, one or both ends of the carrier can be used only for DL ​​transmission.

[0177] In this disclosure, a slot resource operating in half-duplex is referred to as an HD slot, and a slot resource operating in SBFD and a slot resource operating in SSFD are referred to as an SBFD slot (SBFD slot) and an SSFD slot (SSFD slot), respectively. In addition, an SSFD slot and an SSFD slot are collectively referred to as an FD slot.

[0178] In the present disclosure, in a time resource operating as FD, a frequency resource operating as DL among the entire frequency resources is conveniently called a DL subband, and a frequency resource operating as UL may also be called a UL subband.

[0179] In full-duplex operation, both the base station and the terminal can perform full-duplex operation. That is, both the base station and the terminal can simultaneously transmit and receive DL and UL using the same or different frequency resources in the same time resource.

[0180] Alternatively, only the base station can perform full-duplex operation, while the terminals can perform half-duplex operation. The base station can simultaneously transmit and receive DL and UL signals using the same or different frequency resources in the same time resource, but the terminals perform only DL reception or UL transmission in specific time resources. In this case, the base station performs full-duplex operation by performing DL transmission and UL reception with different terminals at the same time.

[0181] The present disclosure assumes that the base station performs / supports full duplex operation, while the terminal performs / supports half duplex operation. However, the present disclosure can also be applied to cases where both the base station and the terminal perform / support full duplex operation.

[0182] Based on this discussion, the present disclosure proposes a method for a terminal to set and determine the time resource where the SBFD symbol is located during intra-carrier full duplex operation.

[0183] In the following, the term "network" may be interpreted as gNB or CU / DU. Furthermore, the term "terminal (UE)" may be interpreted as MT (mobile terminal, mobile termination) of an IAB node or NCR-MT (MT of a network-controlled repeater).

[0184] A. Characteristics of DL / UL time / frequency resources for SBFD and SSFD operations

[0185] A cell (base station) can perform both DL transmission and UL reception in the same time resource in a FD manner, such as SBFD or SSFD. For example, the base station can perform HD operation in the first time resource and FD operation in the second time resource (which may be any time resource other than the first time resource).

[0186] In the first time resource performing the HD operation, the DL operation or the UL operation is performed across the entire frequency resources that constitute the entire system bandwidth. Within the first time resource performing the HD operation, the network performs the DL operation through the 1-1 time resource and the UL operation through the 1-2 time resource. At this time, the 1-1 time resource and the 1-2 time resource do not overlap with each other.

[0187] In the second time resource performing the FD operation, the network performs the DL operation through all or part of the frequency resources (first frequency resources) among the frequency resources constituting the system band of the cell, and performs the UL operation through all or part of the frequency resources (second frequency resources).

[0188] Figure 14 shows examples of a first time resource, a second time resource, a first frequency resource, and a second frequency resource.

[0189] Referring to (a) of FIG. 14, in the first time resource (indicated by A), the device operates in half-duplex. In the second time resource (indicated by B), the device may operate in, for example, SBFD. The resource indicated by DL in the first time resource corresponds to the aforementioned 1-1 time resource, and the resource indicated by UL corresponds to the aforementioned 1-2 time resource.

[0190] Referring to (b) of Fig. 14, the frequency resource operating as DL in the second time resource corresponds to the first frequency resource described above, and the frequency resource operating as UL corresponds to the second frequency resource described above.

[0191] Figure 15 illustrates another example of a first time resource, a second time resource, a first frequency resource, and a second frequency resource.

[0192] Referring to (a) of FIG. 15, in the first time resource (indicated by A), the device operates in half-duplex mode. In the second time resource (indicated by B), for example, it may operate in SSFD mode. The resource indicated by DL in the first time resource corresponds to the aforementioned 1-1 time resource, and the resource indicated by UL corresponds to the aforementioned 1-2 time resource.

[0193] Referring to (b) of Fig. 15, the frequency resources operating as DL and DL+UL in the second time resource correspond to the first frequency resource described above, and the frequency resources operating as DL+UL correspond to the second frequency resource described above.

[0194] The first frequency resource and / or the second frequency resource may have all or some of the following characteristics:

[0195] 1) When performing SBFD operation, the first frequency resource and the second frequency resource do not overlap with each other. This is to ensure that DL and UL operations are performed through different frequency resources. At this time, there may be frequency resources that do not correspond to either the first or second frequency resources, and such frequency resources are called guard subbands or guard frequency resources. Such guard frequency resources may be necessary to reduce interference between DL transmission and UL reception. The guard frequency resource may be located between the first and second frequency resources.

[0196] 2) When performing SSFD operation, the first frequency resource and the second frequency resource may overlap. In this case, there may be frequency resources that do not correspond to either the first frequency resource or the second frequency resource, and such frequency resources are called guard subbands or guard frequency resources. Such guard frequency resources may be necessary to reduce interference between DL transmissions on adjacent carriers and / or between DL transmissions and UL reception on adjacent carriers.

[0197] 3) When performing the SBFD operation, the second frequency resource may be configured with continuous frequency resources, and the first frequency resource may be configured with non-contiguous frequency resources. In this case, the first frequency resource may be configured with multiple (for example, two) non-contiguous sets, and each set may be configured with continuous frequency resources. This is to reduce interference of DL transmission on adjacent carriers to UL resources by positioning the second frequency resource used for UL at the center of the frequency resources constituting the cell. Conversely, the first frequency resource may be configured with continuous frequency resources, and the second frequency resource may be configured with non-contiguous frequency resources. In this case, the second frequency resource may be configured with multiple (for example, two) non-contiguous sets, and each set may be configured with continuous frequency resources. This is to reduce interference of DL transmission on UL resources on adjacent carriers by positioning the second frequency resource used for DL ​​at the center of the frequency resources constituting the cell.

[0198] 4) When performing SSFD operation, the second frequency resource may be configured with a portion of the frequency resources of the first frequency resource. In this case, the second frequency resource may be configured with X PRBs (physical resource blocks) less than the first frequency resource for one or both edge portions of the carrier. This is to reduce interference between DL transmission on adjacent carriers and UL reception.

[0199] The network can determine / judge the 'first time resource' and 'second time resource', and the 'first frequency resource' and 'second frequency resource' as described above, and provide all or part of the corresponding information to the terminal.

[0200] The terminal can determine information about time resources (hereinafter referred to as SBFD symbols) that operate as SBFD (and / or SSFD) for the FD (SBFD and / or SSFD) operation of the cell. For this purpose, information about SBFD symbols can be set to the terminal from the network.

[0201] When a specific time resource is configured as a time resource operating in SBFD (SBFD symbol), both DL and UL resources can exist in that time resource. In this case, if there is no UL signal to be received by the base station in that time resource, the base station can only perform DL transmission. In SBFD resources, DL transmission occurs only within the DL subband. Therefore, even if there is no UL signal transmitted in the UL subband, DL transmission can only be performed within the DL subband.

[0202] In this case, even if a specific time resource is determined to be an SBFD symbol, if there is no UL transmission to be received by the base station, it may be considered to perform DL transmission not only on the DL subband but also outside the DL subband to improve DL throughput. In other words, it may be considered to perform DL transmission over the entire bandwidth.

[0203] That is, a fallback to TDD operation that performs DL or UL operation over the entire band, rather than SBFD operation over DL / UL subbands, can be considered for resources judged as SBFD symbols.

[0204] In resources not identified by the SBFD symbol, the terminal can perform TDD operation (half-duplex operation) like a conventional terminal. That is, it can perform only DL or UL operation using the entire frequency resources of the cell.

[0205] In the present disclosure, a time resource operating in SBFD or an SBFD symbol may mean a 'second time resource'. In addition, in the present disclosure, a time resource operating in TDD, a time resource operating in HD, a TDD symbol, or an HD symbol may mean a 'first time resource'.

[0206] The DL subband mentioned in this disclosure may refer to the 'first frequency resource'. In addition, the UL subband mentioned in this disclosure may refer to the 'second frequency resource'.

[0207] The present disclosure assumes SBFD operation, where a cell performs DL and UL simultaneously using different frequency resources (e.g., subbands) in the same time resource. However, the contents of the present disclosure can also be applied to a cell performing SS-FD operation.

[0208] The present disclosure may include the following terminal operations.

[0209] When a terminal performs DL reception in an SBFD symbol, i) the terminal can perform DL reception using frequency resources within the DL subband. The terminal can perform DL reception using frequency resources within the DL subband within the DL BWP. ii) the terminal does not perform DL reception on frequency resources other than the DL subband. The terminal does not perform DL reception using frequency resources other than the DL subband within the DL BWP.

[0210] When a terminal performs UL transmission in an SBFD symbol, i) the terminal can perform UL transmission using frequency resources within the UL subband. The terminal can perform UL transmission using frequency resources within the UL subband within the UL BWP. ii) the terminal does not perform UL transmission on frequency resources other than the UL subband. The terminal does not perform UL transmission using frequency resources other than the UL subband within the UL BWP.

[0211] Typically, a UE can perform DL reception within a DL subband and UL transmission within a UL subband in the time resources where the UE determines that the cell operates in SBFD. However, if the gNB (base station) performs only DL transmission or UL reception in the time resources where the UE determines that the cell operates in SBFD, or if necessary, it may consider performing DL transmission or UL reception (capable of receiving DL or UL scheduling) over the entire band.

[0212] Additionally / independently, the present disclosure proposes a method in which a terminal receives location information of an SBFD symbol from a network and, based on this, the terminal determines the location of the SBFD symbol independently.

[0213] The terminal receives slot configuration information, which is DL and UL symbol information for multiple slot resources, from the network via tdd-UL-DL-ConfigurationCommon. That is, the slot configuration information may be information indicating whether a symbol in a slot is a DL symbol or a UL symbol. For example, the slot configuration information may indicate at least one of the number of downlink slots, the number of downlink symbols among the symbols in the slot (e.g., from the start of the slot), the number of uplink slots, and the number of uplink symbols (e.g., from the end of the slot).

[0214] A symbol set to DL through tdd-UL-DL-ConfigurationCommon (or tdd-UL-DL-ConfigCommon) can be called a cell-specific DL symbol, and a symbol set to UL can be called a cell-specific UL symbol. Additionally, a symbol that is not set to DL or UL through tdd-UL-DL-ConfigurationCommon (or tdd-UL-DL-ConfigCommon) can be called a cell-specific F (flexible) symbol.

[0215] For example, a terminal can be configured with pattern1 or pattern1 and pattern2 via tdd-UL-DL-ConfigCommon as shown below. Pattern1 contains slot configuration information for a P msec time interval. Pattern2 contains slot configuration information for a P2 msec time interval.

[0216] If the terminal is set to only pattern1, the slot setting cycle is equal to P. If the terminal is set to pattern1 and pattern2, pattern1 and pattern2 are applied repeatedly, and the slot setting cycle is equal to P+P2 msec.

[0217] [Table 5]

[0218]

[0219] <Symbol Level SBFD Resource Instruction>

[0220] The terminal can receive consecutive symbols among the symbols of pattern1 and / or pattern2 from the network as FD resources (e.g., SBFD symbol resources).

[0221] If the terminal is set to only pattern1, it can set consecutive symbols as SBFD symbol resources within the time interval of P msec indicated by pattern1.

[0222] More specifically, within a time interval of P msec, consecutive symbols within symbols judged as cell-specific DL and / or cell-specific F can be set as SBFD symbol resources.

[0223] When a terminal is configured with both pattern1 and pattern2, it can receive information about consecutive symbol resources configured as SBFD symbol resources within the P msec time interval indicated by pattern1. Additionally / independently, it can independently receive information about consecutive symbol resources configured as SBFD symbol resources within the P2 msec time interval indicated by pattern2.

[0224] More specifically, information about consecutive symbol resources set as SBFD symbol resources within symbols determined as cell-specific DL and / or cell-specific F within a P msec time interval indicated by pattern1 can be set. Additionally / independently, information about consecutive symbol resources set as SBFD symbol resources within symbols determined as cell-specific DL and / or cell-specific F within a P2 msec time interval indicated by pattern2 can be independently set.

[0225] Meanwhile, it is necessary to set SBFD symbol resources so as not to perform SBFD operation in time resources where specific signals / channels are transmitted and received, such as SS / PBCH.

[0226] That is, the FD time resource is repeatedly set to a period of P+P2, but if a collision occurs with the periodically transmitted SS / PBCH resources (i.e., overlaps), there is a problem that such a collision occurs repeatedly.

[0227] Therefore, it may be necessary to configure SBFD symbol resources differently for each time period. That is, when the P+P2 cycle repeats, it may be necessary to configure SBFD symbol resources so that SBFD symbols can exist in different resources for each P+P2 cycle. In this case, each SBFD symbol resource can be applied with an independent period and offset.

[0228] The configured SBFD symbol resource can be applied with a period of P+P2 msec or a period of (P+P2)*N msec. If pattern2 is not configured, P2 can be determined as 0. In this case, when pattern1 and pattern2 are applied periodically with a period of P+P2 msec, SBFD symbol resources may exist only in some time intervals of P+P2 msec.

[0229] Below, we describe a method for a terminal to receive information from the network to determine SBFD symbol resources and then determine SBFD symbol resources based on this information. First, we outline this method, followed by a detailed description of specific examples.

[0230] Figure 16 illustrates an operation method of a terminal in a wireless communication system.

[0231] Referring to FIG. 16, the terminal receives TDD (time division duplex) configuration information including a first TDD periodicity of a first downlink-uplink pattern (hereinafter referred to as pattern1) and a second TDD periodicity of a second downlink-uplink pattern (hereinafter referred to as pattern2) from a base station (S161). The TDD configuration information may be, for example, the TDD-UL-DL-ConfigCommon IE described in Table 5.

[0232] Here, the first downlink-uplink pattern indicates downlink symbols and uplink symbols for slot resources within the first TDD period. The second downlink-uplink pattern indicates downlink symbols and uplink symbols for slot resources within the second TDD period.

[0233] The terminal receives full duplex (FD) time resource information from the base station (S162). The FD time resource information may include at least one of an FD period, an FD period offset, a first FD resource offset, a first FD resource interval, a second FD resource offset, and a second FD resource interval.

[0234] When the first TDD cycle is P and the second TDD cycle is P2, the cycle of FD time resources can be (P+P2)*N, and at this time, the FD cycle indicates N (N is a natural number).

[0235] The above (P+P2)*N can be viewed as including N (P+P2) cycles. That is, one cycle is (P+P2) and this cycle repeats N times. At this time, when the FD time resources are located in the N'th (P+P2) cycle among the N (P+P2) cycles, the FD cycle offset indicates the N'th (P+P2) cycle. The N' is any one of 0, 1, ..., N-1.

[0236] The above FD period offset can provide multiple values. In an embodiment, the FD period offset is provided as a bitmap including N bits, each of which can correspond to one of N (P+P2) periods. When the value of each bit is 1, it can indicate that an FD time resource exists in the corresponding (P+P2) period. For example, when N=4 and the bitmap is given as '0101', it indicates that an FD time resource exists in the second (P+P2) period and the fourth (P+P2) period among four (P+P2) periods.

[0237] The first FD resource offset indicates a starting position of the FD time resource within the first TDD period, and the first FD resource interval indicates an interval of the FD time resource based on the starting position.

[0238] The second FD resource offset indicates a starting position of the FD time resource within the second TDD period, and the second FD resource interval indicates an interval of the FD time resource based on the starting position.

[0239] In some embodiments, the FD time resource information may further include TDD pattern information. The TDD pattern information may be information indicating where the FD time resource is located among the first downlink-uplink pattern and the second downlink-uplink pattern.

[0240] The terminal performs communication with the base station based on the TDD configuration information and the FD time resource information, but the FD time resources set by the FD time resource information are located only in some time resources of a specific period different from the first TDD period and the second TDD period among the first TDD time resources by the first TDD period and the second TDD time resources by the second TDD period (S163).

[0241] Now, a specific example of the method described in Fig. 16 will be described. The method described in Fig. 16 can be implemented by method 1 or method 2, or a combination of methods 1 and 2, described below.

[0242] Method 1.

[0243] The SBFD symbol resource (i.e., the FD time resource) is composed of a continuous symbol resource existing within the interval of pattern1 (let's call this SBFD symbol 1, i.e., SBFD symbol 1 can be composed of one or more continuous symbols) and a continuous symbol resource existing within the interval of pattern2 (let's call this SBFD symbol 2, i.e., SBFD symbol 2 can be composed of one or more continuous symbols).

[0244] That is, in the present disclosure, the SBFD symbol resource may be composed of SBFD symbol 1 and SBFD symbol 2. If the terminal is configured with only pattern 1, the SBFD symbol resource may be composed of only SBFD symbol 1.

[0245] The SBFD symbol resource is configured (exists) with a period of (P+P2)*N msec(milliseconds) (N: natural number) (i.e., the specific period different from the first TDD period and the second TDD period). At this time, the SBFD symbol resource may exist in a specific period (period) among the N P+P2 msec periods (periods) existing within the (P+P2)*N msec period (period). If the terminal is configured with only pattern1, P2 may be determined to be 0.

[0246] To this end, the terminal may receive information for determining 'SBFD symbol resources' from the network (hereinafter referred to as 'SBFD symbol configuration information', i.e., FD time resource information of FIG. 16). This SBFD symbol configuration information (i.e., FD time resource information) may include all or part of the following information.

[0247] 1) Periodicity (an example of the FD period in Fig. 16)

[0248] The value of N can be set for period information. In this case, the terminal can determine that the period is equal to (P+P2)*N msec. At this time, N can be an integer greater than or equal to 1.

[0249] Alternatively, when the period is (P+P2)*N, the value corresponding to (P+P2)*N can be directly set. That is, the FD period of Fig. 16 can be provided as the value of N or as the value of (P+P2)*N.

[0250] 2) Offset (an example of the FD period offset in Fig. 16)

[0251] An offset value can be set to determine the time position where the SBFD symbol resource exists within the above cycle.

[0252] The value of N' can be set for offset information. In this case, the terminal can determine that the offset value is equal to (P+P2)*N' msec. At this time, N' can have values ​​of 0, 1, ..., N-1.

[0253] Alternatively, when the offset is equal to (P+P2)*N' msec, a value corresponding to (P+P2)*N' can be directly set. That is, the FD period offset of Fig. 16 can be provided as a value of N' or as a value of (P+P2)*N'.

[0254] 3) SBFD Symbol 1

[0255] Information about the resources of SBFD symbols existing within the pattern1 section can be set. For this purpose, the following information can be set, for example.

[0256] i) SBFD symbol 1 offset (an example of the first FD resource offset in Fig. 16): refers to the offset value between the first symbol to which pattern1 is applied and the starting symbol position where SBFD symbol 1 begins. At this time, this offset value may have a unit of slot or symbol.

[0257] ii) SBFD Symbol 1 Duration (an example of the first FD resource duration in Fig. 16): This refers to duration information of SBFD Symbol 1 (e.g., it can indicate how many consecutive symbols / slots SBFD Symbol 1 consists of). At this time, this duration value can have a unit of slot or symbol.

[0258] That is, SBFD symbol 1 can be defined / set / judged by the SBFD symbol 1 offset and the SBFD symbol 1 section.

[0259] Or, for example, you can set the following information:

[0260] Point in time (or position, hereinafter the same) when transitioning from a non-SBFD symbol to an SBFD symbol 1: Information about the point in time when transitioning from a non-SBFD symbol to an SBFD symbol within the pattern1 section, i.e., position information of the symbol where SBFD symbol 1 (SBFD symbol 1 may be composed of one or more consecutive symbols as described above) starts is set. More specifically, position information indicating the symbol position where SBFD symbol 1 starts can be set based on the first symbol to which pattern1 is applied.

[0261] 1. Information about the point in time (or position, hereinafter the same) when transitioning from an SBFD symbol to a non-SBFD symbol within the pattern1 section, that is, information about the position of the symbol where SBFD symbol 1 ends or information about the position of the next symbol of the last symbol constituting SBFD symbol 1 is set. More specifically, based on the first symbol to which pattern1 is applied, information about the position of the symbol where SBFD symbol 1 ends or information about the position of the next symbol of the last symbol constituting SBFD symbol 1 is set.

[0262] 4) SBFD Symbol 2

[0263] Information about the resources of SBFD symbols existing within the pattern2 section can be set. For this purpose, the following information can be set, for example.

[0264] i) SBFD symbol 2 offset (an example of the second FD resource offset in Fig. 16): refers to an offset value between the first symbol to which pattern2 is applied and the starting symbol position where SBFD symbol 2 starts. At this time, this offset value may have a unit of slot or symbol.

[0265] ii) SBFD symbol 2 interval (an example of the second FD resource interval in FIG. 16): This refers to interval information of SBFD symbol 2 resources (e.g., it can indicate how many consecutive symbols / slots SBFD symbol 2 consists of). At this time, this interval value can have a unit of slot or symbol.

[0266] That is, SBFD symbol 2 can be defined / set / judged by the SBFD symbol 2 offset and the SBFD symbol 2 section.

[0267] Or, for example, you can set the following information:

[0268] Point in time (or position, hereinafter the same) when transitioning from a non-SBFD symbol to an SBFD symbol 2: Information about the point in time when transitioning from a non-SBFD symbol to an SBFD symbol within the pattern2 section, i.e., position information of the symbol where SBFD symbol 2 (SBFD symbol 2 may be composed of one or more consecutive symbols as described above) starts is set. More specifically, position information indicating the symbol position where SBFD symbol 2 starts can be set based on the first symbol to which pattern2 is applied.

[0269] 2: Information about the point of transition from an SBFD symbol to a non-SBFD symbol within the pattern2 section, that is, the position information of the symbol at which SBFD symbol 2 ends or the position information of the next symbol of the last symbol constituting SBFD symbol 2, is set. More specifically, based on the first symbol to which pattern2 is applied, the position information of the symbol at which SBFD symbol 2 ends or the position information of the next symbol of the last symbol constituting SBFD symbol 2 is set.

[0270] When the SBFD symbol setting information as above is provided from the base station to the terminal, the terminal can determine the SBFD symbol resource as follows.

[0271] 1) The terminal can determine that the SBFD symbol resource exists in a cycle of (P+P2)*N msec. At this time, the terminal determines that the SBFD symbol resource exists in a time interval of (P+P2)*N'msec to (P+P2)*(N'+1) msec based on the starting point of each cycle within each (P+P2)*N msec cycle.

[0272] Alternatively, the terminal may determine that pattern1 and pattern2, which exist N'th within the interval of each period, exist within the SBFD symbol resource.

[0273] 2) The terminal determines that the time resource equivalent to 1 consecutive SBFD symbol intervals from the SBFD symbol 1 offset position, based on the starting point of the time interval in which the SBFD symbol determined as in 1) above exists, constitutes SBFD symbol 1. That is, the terminal can determine that the time resource equivalent to 1 consecutive SBFD symbol intervals from the SBFD symbol 1 offset position, based on the position of (P+P2)*N' msec within each period, constitutes SBFD symbol 1.

[0274] Alternatively, it can be determined that time resources equivalent to 1 consecutive SBFD symbol sections from the SBFD symbol 1 offset position based on the starting position of the pattern1 section in which the SBFD symbol exists as determined in 1) above constitutes SBFD symbol 1.

[0275] Alternatively, if the terminal is instructed with information on the point of transition from a non-SBFD symbol to an SBFD symbol and / or the point of transition from an SBFD symbol to a non-SBFD symbol in order to determine the SBFD symbol position, the terminal may determine that the time resource from the symbol corresponding to point 1 of transition from a non-SBFD symbol to the symbol preceding point 1 of transition from an SBFD symbol to a non-SBFD symbol constitutes SBFD symbol 1. Additionally, if point 1 of transition from an SBFD symbol to a non-SBFD symbol is not set, the terminal may determine the last symbol of the pattern1 section in which an SBFD symbol exists as the last symbol constituting SBFD symbol 1.

[0276] 3) Additionally, the terminal can determine that the time resource for 2 consecutive SBFD symbol intervals from the SBFD symbol 2 offset position constitutes SBFD symbol 2 based on the time position P msec after the start point of the time interval in which the SBFD symbol exists as determined in 1) above. That is, the terminal can determine that the time resource for 2 consecutive SBFD symbol intervals from the SBFD symbol 2 offset position constitutes SBFD symbol 2 based on the position of (P+P2)*N' + P msec within each period.

[0277] Alternatively, the terminal may determine that the time resource for the consecutive SBFD symbol 2 sections from the SBFD symbol 2 offset position based on the start position of the pattern2 section in which the SBFD symbol exists as determined in 1) above constitutes the SBFD symbol 2.

[0278] Alternatively, if the terminal is instructed with information on the point in time when a non-SBFD symbol transitions to an SBFD symbol and / or the point in time when a SBFD symbol transitions to a non-SBFD symbol in order to determine the SBFD symbol position, the terminal may determine that the time resource from the symbol corresponding to point 2 when a non-SBFD symbol transitions to an SBFD symbol to the symbol preceding point 2 when a SBFD symbol transitions to a non-SBFD symbol constitutes SBFD symbol 2. Additionally, if point 2 when a SBFD symbol transitions to a non-SBFD symbol is not set, the terminal may determine that the last symbol of the pattern2 section in which an SBFD symbol exists is the last symbol constituting SBFD symbol 2.

[0279] The terminal determines that SBFD symbol 1 and SBFD symbol 2 constitute SBFD symbol resources. These SBFD symbol resources can be repeated in a cycle of (P+P2)*N.

[0280] Figure 16 shows an example of SBFD symbol resource configuration when N=2 (i.e., period = (P+P2)*2 msec) and N'=0 (i.e., offset = (P+P2)*0 = 0 msec).

[0281] Referring to FIG. 16, within each period (i.e., (P+P2)*2 msec), SBFD symbol 1 and SBFD symbol 2 exist within the N'th (meaning the first since N'=0) period of pattern1 and pattern2, respectively, and SBFD symbol 1 and SBFD symbol 2 constitute SBFD symbol resources. SBFD symbol 1 may be composed of one or more consecutive symbols (e.g., four consecutive symbols). SBFD symbol 2 may be composed of one or more consecutive symbols (e.g., two consecutive symbols).

[0282] Depending on the embodiment, the SBFD symbol resource may include multiple SBFD symbols 1 and multiple SBFD symbols 2. That is, multiple SBFD symbols 1 and SBFD symbols 2 may be set through one SBFD symbol setting information.

[0283] To this end, multiple SBFD symbols 1 and multiple SBFD symbols 2 included in the same SBFD symbol resource may have a common period (= FD period) and offset (= FD period offset) applied to each other.

[0284] In this case, one SBFD symbol configuration information includes one period (= FD period) and offset information (= FD period offset), and may include multiple SBFD symbols 1 (first FD resource offset and first FD resource interval) and SBFD symbols 2 (second FD resource offset and second FD resource interval). The terminal determines that the same period (= FD period) and offset (= FD period offset) are applied to multiple SBFD symbols 1 and SBFD symbols 2.

[0285] Alternatively, multiple SBFD symbols 1 and multiple SBFD symbols 2 included in the same SBFD symbol resource may have a common period (= FD period) applied to them, but may also have independent offsets (= FD period offsets). In this case, SBFD symbol 1 and SBFD symbol 2 are always set as a pair, and SBFD symbol 1 and SBFD symbol 2 in a pair relationship may have the same offset (= FD period offset) applied to them.

[0286] In this case, one SBFD symbol setting information includes one period information (= FD period), and multiple pairs of {offset (= FD period offset), SBFD symbol 1, SBFD symbol 2} information can be set. The terminal determines that the same period (= FD period) is applied to multiple SBFD symbols 1 and SBFD symbols 2. In addition, the terminal determines that the offset (= FD period offset) values ​​indicated together as a pair are applied to multiple SBFD symbols 1 and SBFD symbols 2.

[0287] Alternatively, independent offsets (= FD period offsets) may be provided for each SBFD symbol regardless of SBFD symbol 1 and SBFD symbol 2. In this case, one SBFD symbol configuration information includes one period information (= FD period), and multiple pairs of {offset (= FD period offset), SBFD symbol 1} and multiple pairs of {offset (= FD period offset), SBFD symbol 2} information may be configured. The terminal determines that the same period (= FD period) is applied to multiple SBFD symbols 1 and SBFD symbol 2. In addition, the terminal determines that the offset (= FD period offset) values ​​indicated in pairs for each SBFD symbol are applied to multiple SBFD symbols 1 and SBFD symbol 2.

[0288] Additionally, multiple offset information can be set for offset information (i.e., FD period offset).

[0289] For example, multiple N' values ​​may be included in the offset information (= FD period offset). Alternatively, the offset information (= FD period offset) may be composed of bitmap information consisting of N bits. If the nth bit is 1, it may mean that n is included in the offset.

[0290] In this case, the terminal can determine that the SBFD symbol (SBFD symbol 1 and / or SBFD symbol 2) is commonly applied to multiple offsets (= FD period offsets). That is, if the offset information (= FD period offset) includes M (<= N) offset values, the terminal can determine that the SBFD symbol (SBFD symbol 1 and / or SBFD symbol 2) is applied based on each offset position within the period.

[0291] For example, when the period (N) is 4 and the offset (N') = {0, 2}, the set SBFD symbol 1 and SBFD symbol 2 can be positioned based on (P+P2)*0 msec and (P+P2)*2 msec within each period.

[0292] At this time, multiple SBFD symbol resources may exist. In this case, the SBFD symbol resources may have independent configuration information. That is, the terminal may be configured with one or more SBFD symbol resources from the network. To this end, the terminal may independently configure information for each SBFD symbol resource from the network.

[0293] Method 2.

[0294] SBFD symbol resources consist of continuous symbol resources within the pattern1 or pattern2 interval.

[0295] The SBFD symbol resource exists with a period (=FD period) of (P+P2)*N msec (N: natural number). At this time, the SBFD symbol resource can exist in a specific section among the N P+P2 msec sections existing within the (P+P2)*N msec section. If the terminal receives only pattern1, P2 can be determined as 0.

[0296] To this end, the terminal may receive information for determining 'SBFD symbol resources' from the network ('SBFD symbol configuration information', an example of the FD time resource information of FIG. 16). This SBFD symbol configuration information may include all or part of the following information.

[0297] 1) Cycle (=an example of the FD cycle in Fig. 16)

[0298] The value of N can be set for period information. In this case, the terminal can determine that the period is equal to (P+P2)*N msec. In this case, N can be an integer greater than or equal to 1.

[0299] Or, when the period is (P+P2)*N, the value corresponding to (P+P2)*N can be directly set.

[0300] 2) Offset (=an example of FD period offset in Fig. 16)

[0301] An offset value can be set to determine the time position at which the SBFD symbol resource exists within the cycle.

[0302] The value of N' can be set for offset information. In this case, the terminal can determine that the offset value is equal to (P+P2)*N' msec. At this time, N' can have values ​​of 0, 1, ..., N-1.

[0303] Alternatively, when the offset is equal to (P+P2)*N' msec, the value corresponding to (P+P2)*N' can be directly set.

[0304] 3) TDD pattern (=an example of TDD pattern information described in Figure 16)

[0305] This refers to information that indicates which pattern has an SBFD symbol resource among pattern1 and pattern2.

[0306] 4) SBFD symbol

[0307] Information about SBFD symbols can be set within a pattern interval in which resources for SBFD symbols indicated by the above TDD pattern exist. For this purpose, for example, the following information can be set. Here, the SBFD symbol is composed of one or more consecutive symbols.

[0308] i) SBFD symbol offset (=an example of the first FD resource offset or the second FD resource offset in FIG. 16): refers to an offset value between the starting symbol position where the SBFD symbol starts from the first symbol in which the pattern indicated by the TDD pattern exists. At this time, this offset value may have a unit of slot or symbol.

[0309] ii) SBFD symbol interval (=an example of the first FD resource interval or the second FD resource interval of Fig. 16): refers to the interval of an SBFD symbol (i.e., how many consecutive symbols / slots an SBFD symbol consists of). At this time, this interval value may have a unit of a slot or symbol.

[0310] That is, the SBFD symbol can be defined / set / judged by the SBFD symbol offset and the SBFD symbol interval.

[0311] Or, for example, you can set the following information:

[0312] The point in time (or position, hereinafter the same) when a non-SBFD symbol transitions to an SBFD symbol: Information about the point in time when a non-SBFD symbol transitions to an SBFD symbol within a pattern section, i.e., the position information of the symbol where the SBFD symbol (the SBFD symbol may be composed of one or more consecutive symbols as described above) starts is set. More specifically, position information indicating the symbol position where the SBFD symbol starts can be set based on the first symbol of the pattern section where the SBFD symbol resource exists.

[0313] The point in time (or position, hereinafter the same) when a transition occurs from an SBFD symbol to a non-SBFD symbol: Information about the point in time when a transition occurs from an SBFD symbol to a non-SBFD symbol within a pattern section, i.e., the position information of the symbol where the SBFD symbol ends or the position information of the next symbol of the last symbol constituting the SBFD symbol is set. More specifically, the position information of the symbol where the SBFD symbol ends or the position information of the next symbol of the last symbol constituting the SBFD symbol is set based on the first symbol of the pattern section where an SBFD symbol resource exists.

[0314] When receiving SBFD symbol setting information as above, the terminal can determine SBFD symbol resources as follows.

[0315] 1) The terminal determines that the SBFD symbol resource exists with a period of (P+P2)*N msec.

[0316] At this time, if pattern1 is indicated by the TDD pattern, i) the terminal can determine that the SBFD symbol resource exists within a time interval of (P+P2)*N' msec to (P+P2)*N'+P msec based on the start point of each period within the interval of each period. Or ii) the terminal determines that the SBFD symbol resource exists within the pattern1 resource that exists N'th within the interval of each period.

[0317] Or, if pattern2 is indicated by the TDD pattern, i) the terminal can determine that the SBFD symbol resource exists within a time interval of (P+P2)*N'+P msec to (P+P2)*(N'+1) msec based on the start point of each period within the interval of each period. Or ii) the terminal determines that the SBFD symbol resource exists within the pattern2 resource that exists N'th within the interval of each period.

[0318] 2) The terminal determines that the time resource consisting of continuous symbols equal to the SBFD symbol interval from the SBFD symbol offset position based on the starting point of the time interval in which the SBFD symbol determined as in 1) above exists constitutes the SBFD symbol resource. That is, when pattern1 is indicated by the TDD pattern, the terminal determines that the continuous time resource equal to the SBFD symbol interval from the SBFD symbol offset position based on the position of (P+P2)*N' msec within each period constitutes the SBFD symbol resource. Alternatively, when pattern2 is indicated by the TDD pattern, the terminal determines that the continuous time resource equal to the SBFD symbol interval from the SBFD symbol offset position based on the position of (P+P2)*N'+P msec within each period constitutes the SBFD symbol resource.

[0319] Or, based on the start position of the pattern section where the SBFD symbol exists as determined in 1) above, it is determined that the continuous time resources for the SBFD symbol section from the SBFD symbol offset position constitute the SBFD symbol resource.

[0320] Alternatively, if the terminal is instructed with information on the point in time when a non-SBFD symbol transitions to an SBFD symbol and / or the point in time when a SBFD symbol transitions to a non-SBFD symbol in order to determine the position of an SBFD symbol, the terminal may determine that the time resources from the symbol corresponding to the point in time when a non-SBFD symbol transitions to an SBFD symbol to the symbol before the point in time when a SBFD symbol transitions to a non-SBFD symbol constitute an SBFD symbol based on the start position of the pattern section in which the SBFD symbol exists determined as in 1) above. Additionally, if the point in time when a SBFD symbol transitions to a non-SBFD symbol is not set, the terminal may determine the last symbol of the time section in which the SBFD symbol exists as the last symbol constituting the SBFD symbol.

[0321] Figure 17 shows an example of SBFD symbol resource configuration when N=2 (i.e., period = (P+P2)*2 msec), N'=0 (i.e., offset = (P+P2)*0 = 0 msec), and TDD pattern = pattern2.

[0322] Referring to Fig. 17, within each cycle ((P+P2)*2 msec), an SBFD symbol resource exists within the N'th (meaning the first since N'=0) pattern2 interval.

[0323] Depending on the embodiment, an SBFD symbol resource may be composed of multiple SBFD symbols. That is, multiple SBFD symbols may be configured through one SBFD symbol configuration information (i.e., multiple pairs of {SBFD symbol offset, SBFD symbol interval} may be configured).

[0324] In this case, multiple SBFD symbols included in the same SBFD symbol resource may have common period, offset, and / or TDD pattern information applied to each other.

[0325] In this case, one SBFD symbol configuration information includes one period, offset, and / or TDD pattern information, and multiple SBFD symbol information can be configured (i.e., multiple pairs of {SBFD symbol offset, SBFD symbol interval} can be configured). The terminal determines that the same period, offset, and / or TDD pattern information is applied to multiple SBFD symbols.

[0326] Alternatively, multiple SBFD symbols included in the same SBFD symbol resource may have common periods and offsets, but may have independent TDD pattern information. In this case, one SBFD symbol configuration information includes one period and offset information, and multiple pairs of {TDD pattern information, SBFD symbol interval information} may be configured. The terminal determines that the same period and offset information is applied to the multiple SBFD symbols. On the other hand, the terminal determines that the TDD pattern information indicated in pairs for each SBFD symbol is applied to the multiple SBFD symbols.

[0327] Alternatively, a common period may be applied to multiple SBFD symbols included in the same SBFD symbol resource, but may have independent offset and TDD pattern information. In this case, one SBFD symbol configuration information includes one period information, and multiple pairs of {offset, TDD pattern information, SBFD symbol interval information} may be configured. The terminal determines that the same period is applied to the multiple SBFD symbols. The terminal determines that the offset and TDD pattern information indicated in pairs are applied to each of the multiple SBFD symbols.

[0328] Additionally, multiple offset information can be set for offset information (= FD period offset).

[0329] For example, multiple N' values ​​may be included in the offset information. Alternatively, the offset information may be composed of bitmap information consisting of N bits. If the nth bit is 1, it may mean that n is included in the offset.

[0330] In this case, the terminal can determine that SBFD symbols are determined by multiple offsets. That is, if the offset information includes M (<=N) offset values, the SBFD symbol can be determined based on each offset position within the cycle.

[0331] For example, when the period (N) is 4, the offset (N') = {0, 2}, and the TDD pattern = pattern2, the SBFD symbol can be positioned based on (P+P2)*0 + P msec and (P+P2)*2 + P msec within each period.

[0332] Depending on the embodiment, multiple SBFD symbol resources may exist. In this case, the SBFD symbol resources may have independent configuration information. That is, the terminal may be configured with one or more SBFD symbol resources from the network. To this end, the terminal may independently configure information for each SBFD symbol resource from the network.

[0333] Additionally / independently, if the period is not set through the SBFD symbol configuration information, i) the terminal may determine that the period of the SBFD symbol configuration information is equal to P+P2 msec, i.e., equal to N=1. Or ii) the terminal may determine that the period of the SBFD symbol configuration information is equal to the period at which the SS / PBCH is transmitted in the corresponding cell.

[0334] These contents can be applied not only to Method 1 and Method 2 for the above SBFD symbol setting information, but also to other methods.

[0335] <Slot level SBFD resource indication>

[0336] Below, SBFD is described as an example of an FD operation. However, the FD operation is not limited thereto and may also perform an SSFD operation.

[0337] When SBFD symbols and non-SBFD symbols coexist within a single slot, symbol-level / unit resource indication may not be desirable when considering the signal / channel transmission / reception method and terminal operation complexity.

[0338] Taking this into account, the terminal can be instructed by the base station on the time resource for operating in SBFD in units of slots. That is, the terminal can be instructed on whether to operate in SBFD / non-SBFD by using slots as the granularity (minimum unit).

[0339] In this case, the terminal can determine on a slot-by-slot basis whether the slot operates in SBFD or non-SBFD mode.

[0340] Specifically, the terminal can be instructed whether the slot is in SBFD / non-SBFD operation through at least one of the following methods.

[0341] Option 1. Slot-based SBFD / Non-SBFD Indication: The UE may receive an indication from the base station that a specific slot is operating in SBFD mode or non-SBFD mode. For example, the UE may receive information indicating whether each slot, for multiple slot resources, is operating in SBFD mode or non-SBFD mode.

[0342] Option 2. Bitmap-based Indication: The terminal may receive a bitmap indicating which slots operate in SBFD mode and which slots operate in non-SBFD mode. For example, the terminal may receive a bitmap indicating that the first and fifth slots operate in SBFD mode and the remaining slots operate in non-SBFD mode.

[0343] Option 3. SBFD Slot Index Set: The terminal can receive a set of slot indices indicating which slots operate in SBFD mode. For example, the terminal can receive a set containing slots #2 and #7, indicating that these slots operate in SBFD mode.

[0344] Option 4. Starting Slot and Slot Interval Information: The terminal can receive the starting slot and interval information for the SBFD operation. For example, the terminal can receive an indication that the SBFD operation starts at slot #10 and continues for four slots. In this case, the starting slot can indicate slot #10, and the interval information can indicate four slots.

[0345] This information can be applied periodically.

[0346] <DL / UL / 플렉서블 특정적 SBFD / 비-SBFD 지시(DL / UL / Flexible specific SBFD / non-SBFD indication)>

[0347] Figure 18 illustrates the U / F / D direction type.

[0348] Referring to FIG. 18, each slot may include at least some of DL (downlink) symbols, flexible symbols, and UL (uplink) symbols. For example, slots #0, 1, and 2 include DL symbols, slot #3 includes DL symbols, flexible symbols, and UL symbols, and slot #4 includes UL symbols.

[0349] At this time, DL, flexible, and UL of a specific resource are called U / D direction types. One slot can be composed of symbols having the same U / D direction type, such as slots #0, #1, #2, and #4. Or, symbols having different U / D direction types, such as slot #3, may exist together. In this case, symbols having the same U / D direction type within the same slot have the same SBFD / non-SBFD type, but symbols having different U / D direction types within the same slot can have different SBFD / non-SBFD types.

[0350] To this end, the terminal can be independently instructed as to whether SBFD / non-SBFD is performed for each DL, flexible, and UL symbol within a slot. That is, the method for indicating whether SBFD / non-SBFD operation of the slot is performed can be independently applied to DL, flexible, and UL symbols.

[0351] The U / D direction type can be determined by TDD configuration information, such as tdd-UL-DL-ConfigurationCommon and / or tdd-UL-DL-ConfigurationDedicated.

[0352] In this case, symbols with the same U / D direction type within the same slot have the same SBFD / non-SBFD type. If there are only symbols with the same U / D direction type within the same slot, all symbols within the slot have the same SBFD / non-SBFD type. However, symbols with different U / D direction types within the same slot can have different SBFD / non-SBFD types.

[0353] For this purpose, for example, the terminal can be independently instructed on whether to perform SBFD / non-SBFD operation for DL, flexible, and UL resources for each slot, as in options 1, 2, 3, and 4 above.

[0354] Meanwhile, the terminal may not be instructed as to whether a UL symbol set to cell-specific is SBFD / non-SBFD and may always determine that it operates in non-SBFD.

[0355] In this case, since there is no need to indicate whether UL resources are SBFD / non-SBFD, the terminal can be independently indicated whether DL and flexible resources are SBFD / non-SBFD for each slot. That is, the base station can indicate whether DL resources of each slot are SBFD / non-SBFD and whether flexible resources of each slot are SBFD / non-SBFD.

[0356] Applying the above method, the SBFD / non-SBFD types applied to flexible symbols operating as UL within a specific slot and symbols indicated as UL by tdd-UL-DL-ConfigurationCommon and / or tdd-UL-DL-ConfigurationDedicated may be different from each other, for example.

[0357] For this operation, the terminal can be independently instructed on whether to operate SBFD / non-SBFD for each slot resource, for DL ​​and flexible resources, as in options 1, 2, 3, and 4 above. In this case, the terminal can determine that it always operates in non-SBFD mode for UL resources.

[0358] According to the standard (e.g. 3GPP TS 38.213), the slot configuration period P (msec) includes the SCS configuration μ ref S=P2 with μref The slots are included. If the U / D direction type is indicated via tdd-UL-DL-ConfigurationCommon, then within the cycle P, i) from the very beginning, d slotsThe number of slots (i.e. slot #0 to slot #d) slots -1) consists only of downlink symbols, and ii) u from the very end slots The number of slots (i.e. slot #Pu slots ~ slot #P-1) consists only of uplink symbols. iii) d from the very beginning slots The next slot of the dog's slots (i.e. slot #d) slots ) from the front d sym The symbols of the dog are downlink symbols. iv) u from the very back slots All slots of the dog's slots (i.e. slot #Pu slots -1) About, u from behind sym The symbols of the dog are uplink symbols. (S - d slots - u slots )N slot symb -d sym -u sym The remaining symbols of the dog are flexible symbols.

[0359] Hereinafter, for convenience, if P slots are included within the slot setting period P (i.e., μ ref =0) is explained as an example.

[0360] In the present disclosure, SBFD / non-SBFD operation information can be indicated only for DL ​​or flexible resources as follows.

[0361] Method 1.

[0362] If SBFD / non-SBFD operation information is indicated only for DL ​​or flexible resources, Pu among P slots in cycle P slots For the slots of the dog, the instruction of SBFD / non-SBFD operation information is required. In this case, Pu from the front within the cycle P slots For each slot, the terminal can be instructed to operate in SBFD / non-SBFD mode, as in options 1, 2, 3, and 4. The terminal can always assume that it operates in non-SBFD mode for UL resources.

[0363] In this case, a single SBFD / non-SBFD operation information instruction is applied per slot. Therefore, if both DL resources and flexible resources are included in a single slot, common SBFD / non-SBFD operation information is applied to both resources.

[0364] For example, if the above option 2 (bitmap-based instruction) is applied, the Pu containing the DL or flexible resource slots Information on whether SBFD is working for the slots of the Pu slots It can be indicated by a bitmap of length. For example, slots that operate as SBFD can be indicated by 1, and slots that do not can be indicated by 0.

[0365] Or, for example, if the above option 4 (start slot and slot interval information) is applied, Pu including DL or flexible resources slots For consecutive slots, the starting slot position and slot interval information operating in SBFD may be indicated. The terminal may determine that a resource not indicated as a slot operating in SBFD is a resource operating in non-SBFD. At this time, slot offset information relative to the first slot in the cycle may be indicated to indicate the starting slot position. In this case, the starting slot position is slot #0 ~ #Pu slots -1 can be one of the slot offset values ​​0 to Pu slots -1 can be indicated within the range. Also, the slot interval value is 0 to 'Pu slots ' range or 1 to 'Pu slots ' can be directed within the scope of.

[0366] Meanwhile, it can be assumed that the terminal always operates in SBFD for flexible resources or always in non-SBFD operation. In this case, whether SBFD / non-SBFD operation is indicated only for DL ​​resources. In this case, among P slots in period P, d slots For +1 slots, an instruction of SBFD / non-SBFD operation information is required. In this case, the terminal starts from the beginning within the period P. slots For +1 slots, the SBFD / non-SBFD operation can be instructed for each slot, as in options 1, 2, 3, and 4 above. The terminal can determine that it always operates in non-SBFD mode for UL resources. Additionally, the terminal can determine that it always operates in non-SBFD mode for flexible resources. Alternatively, the terminal can determine that it always operates in SBFD mode for flexible resources.

[0367] Method 2.

[0368] If SBFD / non-SBFD operation information is indicated only for DL ​​or flexible resources, Pu among P slots in cycle P slots For the slots of the dog, the instruction of SBFD / non-SBFD operation information is required. In this case, Pu from the front within the cycle P slots For the slots of the dog, the SBFD / non-SBFD operation can be independently instructed as in options 1, 2, 3, and 4 for DL ​​and flexible resources. That is, in method 1, Pu slots While the slots of the dog are instructed to operate SBFD / non-SBFD, in method 2 Pu slots There is a difference in that the UE is independently instructed to operate in SBFD / non-SBFD mode for DL ​​and flexible resources in each slot. The UE can always determine that it operates in non-SBFD mode for UL resources.

[0369] For example, if the above option 2 (bitmap-based instructions) is applied, the Pu containing the DL or flexible resource slots Information on whether SBFD operation is performed on DL resources for the slots of Pu slots The length can be indicated through the first bitmap. For example, slots that operate as SBFD can be indicated as 1, and slots that do not can be indicated as 0.

[0370] Additionally / independently, Pu containing DL or flexible resources slots In the slots of the dog, information on whether SBFD works for flexible resources is provided by Pu slots The length can be indicated through a second bitmap. For example, slots that operate as SBFD can be indicated as 1, and slots that do not can be indicated as 0.

[0371] Or, for example, if the above option 4 (start slot and slot interval information) is applied, the Pu including DL or flexible resources slots For consecutive slots, the starting slot position and slot interval information (let's call this the first starting slot position and slot interval information) that operate in SBFD in DL resources can be indicated. The terminal can determine that a resource that is not indicated as a slot that operates in SBFD is a resource that operates in non-SBFD in DL resources. At this time, slot offset information relative to the first slot in the cycle can be indicated to indicate the starting slot position. In this case, the position of the starting slot is slot #0 ~ #d. slots can be one of the following. The slot offset value is 0 to d. slots can be indicated within the range of . The slot interval value is 0 to 'd slots +1' range or 1 to 'd slots It can be indicated within the range of +1'.

[0372] Pd containing flexible resources additionally / independentlyslots -u slots For consecutive slots, the start slot position and slot interval information (let's call this the second start slot position and slot interval information) that operate in SBFD in flexible resources can be indicated. The terminal can determine that a flexible resource that is not indicated as an SBFD operating slot is a resource that operates in non-SBFD. At this time, for the indication of the start slot position, the first slot (i.e., slot #d) that includes a flexible resource within the cycle slots ) relative slot offset information can be indicated. In this case, the location of the starting slot is slot #d. slots ~ #Pu slots -1 can be one of them. The slot offset value indicated for this is 0 to 'Pd slots -u slots -1' can be indicated within the range. Also, the slot interval value is 0 to 'Pd slots -u slots ' range or 1 to 'Pd slots -u slots ' can be directed within the scope of.

[0373] Method 3.

[0374] The slots containing DL symbols and the slots containing F symbols within the period P are d respectively. slots +1 and Pd slots -u slots It's like a dog.

[0375] Therefore, to indicate whether SBFD / non-SBFD operation is performed for DL ​​resources, the terminal sends a d containing a DL symbol. slots For +1 slots, the SBFD / non-SBFD operation can be instructed as per the above options 1, 2, 3, 4. The terminal can receive this instruction from slot #0 to slot #d within the cycle P. slots It can be judged to mean SBFD / non-SBFD information.

[0376] Additionally / independently, to indicate whether SBFD / non-SBFD operation is to be performed for flexible resources, the terminal may use Pd with flexible symbols. slots -u slots For each slot, the terminal can be instructed whether to operate SBFD / non-SBFD as in options 1, 2, 3, 4 above. The terminal can receive this instruction within the period P for slot #d. slots ~ Slot #Pu slots It can be judged to mean SBFD / non-SBFD information for -1.

[0377] For example, if the above option 2 (bitmap-based instructions) is applied, d containing DL resources slots +1 Information about whether SBFD is working for slots d slots It can be indicated by a bitmap of length +1. Compared to method 2, the length of the bitmap can be different. For example, slots that operate as SBFD in DL resources can be indicated as 1, and slots that do not can be indicated as 0.

[0378] Pd containing flexible resources additionally / independently slots -u slots Information on whether SBFD is active for the slots of the Pd slots -u slots The length can be indicated through a bitmap. Compared to method 2, the length of the bitmap can be different. For example, slots that operate as SBFD in a flexible resource can be indicated as 1, and slots that do not can be indicated as 0.

[0379] Or, for example, if the above option 4 (start slot and slot interval information) is applied, d containing DL resources slotsFor +1 consecutive slots, the starting slot position and slot interval information for SBFD operation in DL resources can be indicated. The terminal can determine that DL resources that are not indicated as SBFD operation slots are non-SBFD operation resources. At this time, slot offset information relative to the first slot in the cycle can be indicated to indicate the starting slot position. In this case, the starting slot position is slot #0 ~ #d. slots can be one of the following. The slot offset value is 0 to d. slots can be indicated within the range of . The slot interval value is 0 to 'd slots +1' range or 1 to 'd slots It can be indicated within the range of +1'.

[0380] Pd containing flexible resources additionally / independently slots -u slots For consecutive slots, the starting slot position and slot interval information for operating in SBFD in flexible resources can be indicated. The terminal can determine that resources that are not indicated as slots operating in SBFD are resources operating in non-SBFD in DL resources. At this time, for indicating the starting slot position, the first slot (i.e., slot # d) that includes a flexible resource within the cycle slots ) relative slot offset information can be indicated. In this case, the location of the starting slot is slot #d. slots ~ #Pu slots -1 can be one of the slot offset values ​​0 to 'Pd slots - u slots -1' can be indicated within the range. Also, the slot interval value is 0 to 'Pd slots -u slots ' range or 1 to 'Pd slots -u slots ' can be directed within the scope of.

[0381] Figure 19 illustrates an operation method of a terminal in a wireless communication system.

[0382] Referring to FIG. 19, the terminal receives TDD (time division duplex) configuration information indicating the link direction (S191).

[0383] TDD configuration information may be, for example, TDD-UL-DL-ConfigCommon as described in Table 5. Through the TDD configuration information, the terminal can know the link direction (DL, UL, Flexible) for slots of a specific cycle and symbols within the slots.

[0384] The terminal receives type setting information, and for a specific slot including symbols having different link directions, the type setting information independently indicates the FD type or HD type for the symbols having the different link directions (S192).

[0385] Specifically, the type setting information indicates FD operation time resource information on a slot-by-slot basis. At this time, if the slot contains only symbols having the same link direction, the FD type or HD type is indicated for the symbols. Then, since the slot operates only in the FD type or HD type, the occurrence of transitions between FD symbols and non-FD symbols within the slot can be prevented.

[0386] On the other hand, when a specific slot includes symbols having different link directions, the type setting information can set an FD type or an HD type for DL ​​symbols included in the specific slot, and can set an FD type or an HD type for flexible symbols included in the specific slot independently from the setting for the DL symbols. That is, for a specific slot including symbols having different link directions, the type setting information independently informs of the FD type or the HD type for symbols having the different link directions.

[0387] The above FD type is a duplex type that can perform uplink operation and downlink operation simultaneously using different frequency bands within a slot, and the above HD type is a duplex type that can perform uplink operation or downlink operation within a slot.

[0388] According to an embodiment, the type setting information may independently indicate the FD type or the HD type for downlink symbols and flexible symbols of the remaining slots, excluding slots having only uplink symbols, for a specific period consisting of a plurality of slots. In this case, the terminal may determine that slots having only uplink symbols are of the HD type.

[0389] According to an embodiment, the type setting information includes a first bitmap composed of a number of bits equal to the number of the remaining slots excluding slots having only the uplink symbols, wherein the first bitmap can indicate the FD type or the HD type for downlink symbols included in each of the remaining slots.

[0390] In an embodiment, the type setting information includes a second bitmap composed of a number of bits equal to the number of the remaining slots excluding slots having only the uplink symbols, wherein the second bitmap can indicate the FD type or the HD type for flexible symbols included in each of the remaining slots.

[0391] According to an embodiment, the type setting information may include start slot and slot interval information (first start slot and slot interval information) in which downlink symbols operate as the FD type among the remaining slots excluding slots having only the uplink symbols.

[0392] In some embodiments, the starting slot may be indicated by an offset value for a first slot among the plurality of slots.

[0393] According to an embodiment, the type setting information may include start slot and slot interval information (second start slot and slot interval information) in which a flexible symbol operates as the FD type among the remaining slots, excluding slots having only the uplink symbols. In this case, the start slot may be indicated through an offset value for the first slot including the flexible symbol among the plurality of slots.

[0394] For these examples <DL / UL / 플렉서블 특정적 SBFD / 비-SBFD 지시(DL / UL / Flexible specific SBFD / non-SBFD indication)> As described above in Method 2.

[0395] According to an embodiment, the type setting information may independently inform the FD type or the HD type for each slot, for a specific period consisting of a plurality of slots, for downlink slots including only downlink symbols and for flexible slots including flexible symbols.

[0396] In some embodiments, the type setting information includes a third bitmap composed of a number of bits equal to the number of downlink slots, wherein the third bitmap can indicate the FD type or the HD type for each of the downlink slots.

[0397] In an embodiment, the type setting information includes a fourth bitmap composed of a number of bits equal to the number of the flexible slots, wherein the fourth bitmap can indicate the FD type or the HD type for each slot for the flexible symbols included in each of the flexible slots.

[0398] According to an embodiment, the type setting information may include information on a start slot and slot interval in which a downlink symbol operates as the FD type among the downlink slots. In this case, the start slot may be indicated through an offset value for a first slot among the plurality of slots.

[0399] According to an embodiment, the type setting information may include information on a start slot and slot interval in which a flexible symbol among the flexible slots operates as the FD type. In this case, the start slot may be indicated through an offset value for the first slot among the plurality of slots that includes a flexible symbol.

[0400] For these examples <DL / UL / 플렉서블 특정적 SBFD / 비-SBFD 지시(DL / UL / Flexible specific SBFD / non-SBFD indication)> As described above in Method 3.

[0401] According to the method described in Fig. 19, by indicating FD operation time resource information on a slot-by-slot basis, unnecessary transitions between FD and non-FD symbols within a slot are avoided, and when symbols with different link directions (downlink, flexible, uplink) coexist within a specific slot, the FD type and non-FD type can be independently indicated according to the link direction. Therefore, there is an advantageous effect of increasing communication efficiency and preventing unnecessary interference.

[0402] Figure 20 illustrates a signaling and operation method between a base station and a terminal.

[0403] The base station provides TDD configuration information to the terminal (S201). The TDD configuration information may be provided, for example, through a cell-specific system information / RRC message or a terminal-specific RRC message.

[0404] The base station provides type setting information to the terminal (S202). The type setting information can independently indicate the FD type or HD type for symbols having different link directions for a specific slot containing symbols having different link directions.

[0405] The terminal determines the FD type / HD type based on type setting information for slots including specific slots containing symbols having different link directions (S203).

[0406] The terminal performs an operation within the slot according to the determined FD type / HD type (S204).

[0407] <Slot-level SBFD / non-SBFD instructions and symbol-level SBFD / non-SBFD instructions>

[0408] For symbols transmitting SSB, the terminal may determine that the symbol always operates in non-SBFD mode. In this case, for example, if the terminal is instructed to operate in SBFD mode for DL ​​resources in a specific slot, and an SSB transmission symbol may exist in the specific slot, the terminal may determine that the DL symbol that is an SSB symbol in the specific slot operates in non-SBFD mode, and the DL symbol that is not an SSB symbol operates in SBFD mode.

[0409] Additionally / independently, for symbols on which PRACH can be transmitted (e.g., symbols on which RACH opportunities exist), the UE may determine that the symbol always operates in non-SBFD mode. For example, if the UE is instructed to operate in SBFD mode for flexible resources in a specific slot, and there is also a symbol on which PRACH can be transmitted in the slot, the flexible symbol on which PRACH can be transmitted in the slot may be determined to operate in non-SBFD mode, and the other flexible symbols may be determined to operate in SBFD mode.

[0410] When a terminal receives SBFD / non-SBFD operation information from a base station on a slot-by-slot basis, symbol-level SBFD / non-SBFD operation information may be additionally / independently indicated.

[0411] When a terminal is instructed to operate in SBFD for a specific slot, the terminal may additionally be instructed with symbol information for operating in SBFD and / or non-SBFD for the slot. When the terminal is instructed with symbol information for operating in SBFD, the terminal may determine that only the symbols instructed to operate in SBFD within the slot are used for SBFD operation, and the remaining symbols are used for non-SBFD operation. And / or when the terminal is instructed with symbol information for operating in non-SBFD, the terminal may determine that only the symbols instructed to operate in non-SBFD within the slot are used for SBFD operation, and the symbols instructed to operate in non-SBFD are used for non-SBFD operation.

[0412] If a terminal is instructed to operate in SBFD for a specific slot and is not instructed about additional symbol-level SBFD / non-SBFD operation information, the terminal may determine that all symbols within the slot operate in SBFD.

[0413] Additionally / independently, if a terminal is instructed to operate in non-SBFD mode for a specific slot, the terminal may additionally be instructed with symbol information for operating in SBFD and / or non-SBFD mode for the slot. If the terminal is instructed with symbol information for operating in SBFD mode for a specific slot, the terminal may determine that only the symbols instructed to operate in SBFD mode within the slot are used for SBFD operation, and the remaining symbols are used for non-SBFD operation. And / or if the terminal is instructed with symbol information for operating in non-SBFD mode, the terminal may determine that only the symbols instructed to operate in non-SBFD mode within the slot are used for SBFD operation, and the symbols instructed to operate in non-SBFD mode are used for non-SBFD operation.

[0414] If a terminal is instructed to operate non-SBFD for a specific slot and is not instructed about additional symbol-level SBFD / non-SBFD operation information, the terminal may determine that all symbols within the slot operate non-SBFD.

[0415] Depending on the embodiment, whether SBFD / non-SBFD operation information is applied at the slot level or the symbol level may be determined based on TDD configuration information. For example, in the case of a slot in which all symbols within the slot are indicated as downlink by tdd-UL-DL-ConfigurationCommon, i) if the slot is indicated to operate in SBFD, the terminal may determine that the SBFD operation is performed on all symbols within the slot.

[0416] Meanwhile, in the case of a slot in which only some symbols within the slot are indicated as downlink by tdd-UL-DL-ConfigurationCommon and the remaining symbols are determined as uplink and / or flexible, i) if the slot is indicated to operate in SBFD, the terminal may determine to operate in SBFD for the symbols indicated as downlink within the slot. ii) In this case, the terminal may determine whether to operate in SBFD / non-SBFD for the symbols determined as flexible or uplink within the slot through an additional instruction. Such an instruction may be indicated, for example, at the symbol level (e.g., start symbol and symbol interval information).

[0417] iii) Additionally, the terminal may determine that it always operates in non-SBFD mode for symbols determined to be uplink within the slot. In this case, the terminal may determine whether to operate in SBFD / non-SBFD mode for symbols determined to be flexible within the slot through additional instructions. Such instructions may be provided, for example, at the symbol level (e.g., starting symbol and symbol interval information).

[0418] The terminal can use the above method to determine the SBFD / non-SBFD type applied to a specific symbol in a specific slot. For symbols determined to be SBFD type, the cell is determined to be performing SBFD-based operations, and thus can perform subband-based DL reception and UL transmission operations. Conversely, for symbols determined to be non-SBFD type, the cell is determined to be performing conventional TDD-based operations, and thus can perform TDD-based DL reception and UL transmission operations using all frequency resources.

[0419] Referring to FIG. 21, the first wireless device (100) and the second wireless device (200) can transmit and receive wireless signals through various wireless access technologies (e.g., LTE, NR).

[0420] A first wireless device (100) includes one or more processors (102) and one or more memories (104), and may further include one or more transceivers (106) and / or one or more antennas (108). The processor (102) controls the memories (104) and / or the transceivers (106), and may be configured to implement the descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed in this document. For example, the processor (102) may process information in the memory (104) to generate first information / signal, and then transmit a wireless signal including the first information / signal via the transceiver (106). In addition, the processor (102) may receive a wireless signal including second information / signal via the transceiver (106), and then store information obtained from signal processing of the second information / signal in the memory (104). The memory (104) may be connected to the processor (102) and may store various information related to the operation of the processor (102). For example, the memory (104) may perform some or all of the processes controlled by the processor (102), or may store software code including commands for performing the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this document. Here, the processor (102) and the memory (104) may be part of a communication modem / circuit / chip designed to implement a wireless communication technology (e.g., LTE, NR). The transceiver (106) may be connected to the processor (102) and may transmit and / or receive wireless signals via one or more antennas (108). The transceiver (106) may include a transmitter and / or a receiver. The transceiver (106) may be used interchangeably with an RF (Radio Frequency) unit. In this specification, wireless device may also mean a communication modem / circuit / chip.The processor (102) receives TDD (time division duplex) configuration information indicating a link direction, and receives type configuration information indicating whether the type is FD (full duplex) or HD (half duplex). The type configuration information independently indicates the FD type or the HD type for symbols having different link directions for a specific slot including symbols having different link directions.

[0421] The second wireless device (200) includes one or more processors (202), one or more memories (204), and may further include one or more transceivers (206) and / or one or more antennas (208). The processor (202) controls the memories (204) and / or the transceivers (206), and may be configured to implement the descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed in this document. For example, the processor (202) may process information in the memory (204) to generate third information / signals, and then transmit a wireless signal including the third information / signals via the transceivers (206). Furthermore, the processor (202) may receive a wireless signal including fourth information / signals via the transceivers (206), and then store information obtained from signal processing of the fourth information / signals in the memory (204). The memory (204) may be connected to the processor (202) and may store various information related to the operation of the processor (202). For example, the memory (204) may perform some or all of the processes controlled by the processor (202), or may store software code including commands for performing the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this document. Here, the processor (202) and the memory (204) may be part of a communication modem / circuit / chip designed to implement wireless communication technology (e.g., LTE, NR). The transceiver (206) may be connected to the processor (202) and may transmit and / or receive wireless signals via one or more antennas (208). The transceiver (206) may include a transmitter and / or a receiver. The transceiver (206) may be used interchangeably with an RF unit. In this specification, a wireless device may also mean a communication modem / circuit / chip. The processor (202) transmits TDD setting information indicating the link direction to the terminal and transmits type setting information indicating whether it is an FD type or an HD type to the terminal.For a particular slot containing symbols having different link directions, the type setting information independently indicates the FD type or the HD type for the symbols having the different link directions.

[0422] Hereinafter, the hardware elements of the wireless device (100, 200) will be described in more detail. Although not limited thereto, one or more protocol layers may be implemented by one or more processors (102, 202). For example, one or more processors (102, 202) may implement one or more layers (e.g., functional layers such as PHY, MAC, RLC, PDCP, RRC, SDAP). One or more processors (102, 202) may generate one or more Protocol Data Units (PDUs) and / or one or more Service Data Units (SDUs) according to the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this document. One or more processors (102, 202) may generate messages, control information, data, or information according to the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this document. One or more processors (102, 202) can generate signals (e.g., baseband signals) including PDUs, SDUs, messages, control information, data or information according to the functions, procedures, proposals and / or methods disclosed herein, and provide the signals to one or more transceivers (106, 206). One or more processors (102, 202) can receive signals (e.g., baseband signals) from one or more transceivers (106, 206) and obtain PDUs, SDUs, messages, control information, data or information according to the descriptions, functions, procedures, proposals, methods and / or operational flowcharts disclosed herein.

[0423] The one or more processors (102, 202) may be referred to as a controller, a microcontroller, a microprocessor, or a microcomputer. The one or more processors (102, 202) may be implemented by hardware, firmware, software, or a combination thereof. For example, one or more Application Specific Integrated Circuits (ASICs), one or more Digital Signal Processors (DSPs), one or more Digital Signal Processing Devices (DSPDs), one or more Programmable Logic Devices (PLDs), or one or more Field Programmable Gate Arrays (FPGAs) may be included in the one or more processors (102, 202). The one or more processors (102, 202) may also be implemented by at least one computer-readable medium (CRM) containing instructions based on being executed by at least one processor.

[0424] That is, at least one computer readable medium (CRM) including instructions based on being executed by at least one processor performs the steps of receiving TDD configuration information indicating a link direction and receiving type configuration information indicating whether a resource is an FD type or an HD type. For a specific slot including symbols having different link directions, the type configuration information independently indicates the FD type or the HD type for the symbols having the different link directions.

[0425] The descriptions, functions, procedures, suggestions, methods and / or operation flowcharts disclosed in this document may be implemented using firmware or software, and the firmware or software may be implemented to include modules, procedures, functions, etc. The descriptions, functions, procedures, suggestions, methods and / or operation flowcharts disclosed in this document may be implemented using firmware or software in the form of codes, instructions and / or sets of instructions. The firmware or software configured to perform the descriptions, functions, procedures, suggestions, methods and / or operation flowcharts disclosed in this document may be included in one or more processors (102, 202) or stored in one or more memories (104, 204) and executed by one or more processors (102, 202). The descriptions, functions, procedures, suggestions, methods and / or operation flowcharts disclosed in this document may be implemented using firmware or software in the form of codes, instructions and / or sets of instructions.

[0426] One or more memories (104, 204) may be coupled to one or more processors (102, 202) and may store various forms of data, signals, messages, information, programs, codes, instructions, and / or commands. The one or more memories (104, 204) may be configured as ROM, RAM, EPROM, flash memory, hard drives, registers, cache memory, computer-readable storage media, and / or combinations thereof. The one or more memories (104, 204) may be located internally and / or externally to the one or more processors (102, 202). Additionally, the one or more memories (104, 204) may be coupled to the one or more processors (102, 202) via various technologies, such as wired or wireless connections.

[0427] One or more transceivers (106, 206) can transmit user data, control information, wireless signals / channels, etc., as mentioned in the methods and / or flowcharts of this document, to one or more other devices. One or more transceivers (106, 206) can receive user data, control information, wireless signals / channels, etc., as mentioned in the descriptions, functions, procedures, proposals, methods and / or flowcharts of this document, from one or more other devices. For example, one or more transceivers (106, 206) can be connected to one or more processors (102, 202) and can transmit and receive wireless signals. For example, one or more processors (102, 202) can control one or more transceivers (106, 206) to transmit user data, control information, or wireless signals to one or more other devices. Additionally, one or more processors (102, 202) may control one or more transceivers (106, 206) to receive user data, control information, or wireless signals from one or more other devices. Additionally, one or more transceivers (106, 206) may be coupled to one or more antennas (108, 208), and one or more transceivers (106, 206) may be configured to transmit and receive user data, control information, wireless signals / channels, or the like, as referred to in the descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed herein, via one or more antennas (108, 208). In this document, one or more antennas may be multiple physical antennas or multiple logical antennas (e.g., antenna ports). One or more transceivers (106, 206) can convert received user data, control information, wireless signals / channels, etc. from RF band signals to baseband signals in order to process the received user data, control information, wireless signals / channels, etc. using one or more processors (102, 202).One or more transceivers (106, 206) may convert user data, control information, wireless signals / channels, etc. processed by one or more processors (102, 202) from baseband signals to RF band signals. For this purpose, one or more transceivers (106, 206) may include an (analog) oscillator and / or filter.

[0428] Fig. 22 illustrates an example of a signal processing module structure. Here, signal processing may be performed in the processor (102, 202) of Fig. 21.

[0429] Referring to FIG. 22, a transmission device (e.g., a processor, a processor and a memory, or a processor and a transceiver) within a terminal or a base station may include a scrambler (301), a modulator (302), a layer mapper (303), an antenna port mapper (304), a resource block mapper (305), and a signal generator (306).

[0430] A transmitting device can transmit one or more codewords. The coded bits within each codeword are scrambled by a scrambler (301) and transmitted over a physical channel. A codeword may also be referred to as a data string and may be equivalent to a transport block, which is a data block provided by the MAC layer.

[0431] The scrambled bits are modulated into complex-valued modulation symbols by a modulator (302). The modulator (302) can modulate the scrambled bits according to a modulation scheme and arrange them into complex-valued modulation symbols that represent positions on a signal constellation. There is no limitation on the modulation scheme, and m-PSK (m-Phase Shift Keying) or m-QAM (m-Quadrature Amplitude Modulation) can be used to modulate the encoded data. The modulator may be referred to as a modulation mapper.

[0432] The complex modulation symbols may be mapped to one or more transmission layers by a layer mapper (303). The complex modulation symbols on each layer may be mapped by an antenna port mapper (304) for transmission on an antenna port.

[0433] The resource block mapper (305) can map the complex modulation symbol for each antenna port to an appropriate resource element within a virtual resource block (VRB) allocated for transmission. The resource block mapper can map the VRB to a physical resource block (PRB) according to an appropriate mapping scheme. The resource block mapper (305) can assign the complex modulation symbol for each antenna port to an appropriate subcarrier and multiplex it according to the user.

[0434] The signal generator (306) can generate a complex-valued time domain OFDM symbol signal by modulating a complex modulation symbol for each antenna port, i.e., an antenna-specific symbol, with a specific modulation method, for example, an Orthogonal Frequency Division Multiplexing (OFDM) method. The signal generator can perform an Inverse Fast Fourier Transform (IFFT) on the antenna-specific symbol, and a Cyclic Prefix (CP) can be inserted into the time domain symbol on which the IFFT is performed. The OFDM symbol is transmitted to a receiving device through each transmitting antenna through digital-to-analog conversion, frequency uplink conversion, etc. The signal generator can include an IFFT module, a CP inserter, a Digital-to-Analog Converter (DAC), a frequency uplink converter, etc.

[0435] Fig. 23 illustrates another example of a signal processing module structure within a transmission device. Here, signal processing may be performed in a processor of a terminal / base station, such as the processor (102, 202) of Fig. 21.

[0436] Referring to FIG. 23, a transmission device (e.g., a processor, a processor and a memory, or a processor and a transceiver) in a terminal or a base station may include a scrambler (401), a modulator (402), a layer mapper (403), a precoder (404), a resource block mapper (405), and a signal generator (406).

[0437] The transmitting device can transmit coded bits within a codeword through a physical channel after scrambling the coded bits within the codeword by a scrambler (401).

[0438] The scrambled bits are modulated into complex modulation symbols by a modulator (402). The modulator can modulate the scrambled bits according to a predetermined modulation scheme and arrange them into complex modulation symbols representing positions on a signal constellation. There is no limitation on the modulation scheme, and pi / 2-BPSK (pi / 2-Binary Phase Shift Keying), m-PSK (m-Phase Shift Keying), or m-QAM (m-Quadrature Amplitude Modulation) can be used to modulate the encoded data.

[0439] The above complex modulation symbol can be mapped to one or more transmission layers by the layer mapper (403).

[0440] The complex modulation symbols on each layer can be precoded by the precoder (404) for transmission on the antenna ports. Here, the precoder may perform precoding after performing transform precoding on the complex modulation symbols. Alternatively, the precoder may perform precoding without performing transform precoding. The precoder (404) may process the complex modulation symbols in a MIMO manner according to multiple transmission antennas to output antenna-specific symbols and distribute the antenna-specific symbols to the corresponding resource block mapper (405). The output z of the precoder (404) can be obtained by multiplying the output y of the layer mapper (403) by the precoding matrix W of NХM. Here, N is the number of antenna ports and M is the number of layers.

[0441] The resource block mapper (405) maps the demodulation modulation symbol for each antenna port to the appropriate resource element within the virtual resource block allocated for transmission.

[0442] The resource block mapper (405) can assign complex modulation symbols to appropriate subcarriers and multiplex them according to the user.

[0443] The signal generator (406) can generate a complex-valued time domain OFDM (Orthogonal Frequency Division Multiplexing) symbol signal by modulating a complex modulation symbol with a specific modulation method, for example, OFDM. The signal generator (406) can perform an Inverse Fast Fourier Transform (IFFT) on an antenna-specific symbol, and a Cyclic Prefix (CP) can be inserted into the time domain symbol on which the IFFT has been performed. The OFDM symbol is transmitted to a receiving device through each transmitting antenna after going through digital-to-analog conversion, frequency upconversion, etc. The signal generator (406) can include an IFFT module, a CP inserter, a Digital-to-Analog Converter (DAC), a frequency uplink converter, etc.

[0444] The signal processing process of the receiving device may be configured in reverse order of the signal processing process of the transmitter. Specifically, the processor of the receiving device performs decoding and demodulation on a wireless signal received externally through the antenna port(s) of the transceiver. The receiving device may include a plurality of multiple receiving antennas, and each signal received through the receiving antenna is restored to a baseband signal and then multiplexed and MIMO demodulated to be restored to a data sequence originally intended to be transmitted by the transmitting device. The receiving device (1820) may include a signal restorer for restoring the received signal to a baseband signal, a multiplexer for combining and multiplexing the received and processed signals, and a channel demodulator for demodulating the multiplexed signal sequence into a corresponding codeword. The signal restorer, the multiplexer, and the channel demodulator may be configured as an integrated module performing their functions or as individual modules. More specifically, the signal restorer may include an analog-to-digital converter (ADC) that converts an analog signal into a digital signal, a CP remover that removes a CP from the digital signal, an FFT module that applies an FFT (fast Fourier transform) to a signal from which the CP has been removed to output a frequency domain symbol, and a resource element demapper / equalizer that restores the frequency domain symbol to an antenna-specific symbol. The antenna-specific symbol is restored to a transmission layer by a multiplexer, and the transmission layer is restored to a codeword that the transmitter intended to transmit by a channel demodulator.

[0445] FIG. 24 illustrates an example of a wireless communication device according to an implementation example of the present disclosure.

[0446] Referring to FIG. 24, a wireless communication device, for example, a terminal, may include at least one of a processor (2310) such as a digital signal processor (DSP) or a microprocessor, a transceiver (2335), a power management module (2305), an antenna (2340), a battery (2355), a display (2315), a keypad (2320), a global positioning system (GPS) chip (2360), a sensor (2365), a memory (2330), a subscriber identification module (SIM) card (2325), a speaker (2345), and a microphone (2350). There may be a plurality of antennas and processors.

[0447] The processor (2310) can implement the functions, procedures, and methods described in this specification. The processor (2310) of FIG. 24 may be the processor (102, 202) of FIG. 21.

[0448] Memory (2330) is connected to the processor (2310) and stores information related to the processor's operation. The memory may be located internally or externally to the processor and may be connected to the processor via various technologies, such as wired or wireless connections. The memory (2330) of FIG. 24 may be the memory (104, 204) of FIG. 21.

[0449] A user may input various types of information, such as a phone number, using various techniques, such as pressing buttons on a keypad (2320) or activating sound using a microphone (2350). The processor (2310) may receive and process the user's information and perform an appropriate function, such as dialing the entered phone number. In some scenarios, data may be retrieved from a SIM card (2325) or memory (2330) to perform the appropriate function. In some scenarios, the processor (2310) may display various types of information and data on a display (2315) for the user's convenience.

[0450] A transceiver (2335) is coupled to a processor (2310) and transmits and / or receives wireless signals, such as radio frequency (RF) signals. The processor may control the transceiver to initiate communication or transmit wireless signals containing various types of information or data, such as voice communication data. The transceiver includes a transmitter and a receiver for transmitting and receiving wireless signals. An antenna (2340) may facilitate the transmission and reception of wireless signals. In some implementations, upon receiving a wireless signal, the transceiver may forward and convert the signal to a baseband frequency for processing by the processor. The processed signal may be processed by various techniques, such as being converted into audible or readable information for output through a speaker (2345). The transceiver of FIG. 24 may be the transceiver (106, 206) of FIG. 27.

[0451] Although not shown in FIG. 24, various components, such as a camera and a Universal Serial Bus (USB) port, may be additionally included in the terminal. For example, the camera may be connected to the processor (2310).

[0452] Figure 24 is only one implementation example for a terminal, and the implementation examples are not limited thereto. The terminal does not necessarily have to include all the elements of Figure 24. That is, some components, such as the keypad (2320), the Global Positioning System (GPS) chip (2360), the sensor (2365), and the SIM card (2325), may not be essential elements, and in this case, may not be included in the terminal.

[0453] Figure 25 shows an example of a processor (2000).

[0454] Referring to FIG. 25, the processor (2000) may include a control channel transceiver (2010) and a data channel transceiver (2020). The processor (2000) may, for example, execute the methods described in FIGS. 16 to 24 from the terminal's perspective. The processor (2000) may be an example of the processors (102, 202) of FIG. 21.

[0455] Figure 26 shows an example of a processor (3000).

[0456] Referring to FIG. 26, the processor (3000) may include a control information / data generation module (3010) and a transmission / reception module (3020). The processor (3000) may execute the method described in FIGS. 16 to 24, for example, from the perspective of a base station or a network. The processor (3000) may be an example of the processor (102, 202) of FIG. 21.

[0457] Figure 27 illustrates another example of a wireless device.

[0458] According to FIG. 27, the wireless device may include at least one processor (102, 202), at least one memory (104, 204), at least one transceiver (106, 206), and one or more antennas (108, 208).

[0459] The difference between the example of the wireless device described in FIG. 21 and the example of the wireless device in FIG. 27 is that in FIG. 21, the processor (102, 202) and the memory (104, 204) are separated, but in the example of FIG. 27, the memory (104, 204) is included in the processor (102, 202). That is, the processor and the memory may constitute a single chipset.

[0460] Figure 28 illustrates another example of a wireless device applicable to the present specification. The wireless device may be implemented in various forms depending on the use case / service.

[0461] Referring to FIG. 28, the wireless device (100, 200) may correspond to the wireless device of FIG. 21 and may be composed of various elements, components, units / units, and / or modules. For example, the wireless device (100, 200) may include a communication unit (110), a control unit (120), a memory unit (130), and an additional element (140). The communication unit may include a communication circuit (112) and a transceiver(s) (114). For example, the communication circuit (112) may include one or more processors (102, 202) and / or one or more memories (104, 204). For example, the transceiver(s) (114) may include one or more transceivers (106, 206) and / or one or more antennas (108, 208) of FIG. 21. The control unit (120) is electrically connected to the communication unit (110), the memory unit (130), and the additional elements (140) and controls the overall operations of the wireless device. For example, the control unit (120) can control the electrical / mechanical operations of the wireless device based on the program / code / command / information stored in the memory unit (130). In addition, the control unit (120) can transmit information stored in the memory unit (130) to an external device (e.g., another communication device) via a wireless / wired interface through the communication unit (110), or store information received from an external device (e.g., another communication device) via a wireless / wired interface in the memory unit (130).

[0462] The additional element (140) may be configured in various ways depending on the type of the wireless device. For example, the additional element (140) may include at least one of a power unit / battery, an input / output unit (I / O unit), a driving unit, and a computing unit. Although not limited thereto, the wireless device may be implemented in the form of a robot (Fig. 34, 100a), a vehicle (Fig. 34, 100b-1, 100b-2), an XR device (Fig. 34, 100c), a portable device (Fig. 34, 100d), a home appliance (Fig. 34, 100e), an IoT device (Fig. 34, 100f), a digital broadcasting terminal, a hologram device, a public safety device, an MTC device, a medical device, a fintech device (or a financial device), a security device, a climate / environmental device, an AI server / device (Fig. 34, 400), a base station (Fig. 34, 200), a network node, etc. Wireless devices may be mobile or stationary depending on the use / service.

[0463] In FIG. 28, various elements, components, units / parts, and / or modules within the wireless device (100, 200) may be entirely interconnected via a wired interface, or at least some may be wirelessly connected via a communication unit (110). For example, within the wireless device (100, 200), the control unit (120) and the communication unit (110) may be wired, and the control unit (120) and a first unit (e.g., 130, 140) may be wirelessly connected via the communication unit (110). In addition, each element, component, unit / part, and / or module within the wireless device (100, 200) may further include one or more elements. For example, the control unit (120) may be composed of a set of one or more processors. For example, the control unit (120) may be composed of a set of a communication control processor, an application processor, an electronic control unit (ECU), a graphics processing processor, a memory control processor, etc. As another example, the memory unit (130) may be composed of RAM (Random Access Memory), DRAM (Dynamic RAM), ROM (Read Only Memory), flash memory, volatile memory, non-volatile memory, and / or a combination thereof.

[0464] Examples of mobile devices applicable to this specification are provided. Mobile devices may include smartphones, smart pads, wearable devices (e.g., smartwatches, smartglasses), and portable computers (e.g., laptops). Mobile devices may be referred to as MS (Mobile Station), UT (User Terminal), MSS (Mobile Subscriber Station), SS (Subscriber Station), AMS (Advanced Mobile Station), or WT (Wireless Terminal).

[0465] Fig. 29 illustrates a communication system (1) applicable to this specification.

[0466] Referring to FIG. 29, a communication system (1) applied to the present specification includes a wireless device, a base station, and a network. Here, the wireless device refers to a device that performs communication using a wireless access technology (e.g., 5G NR (New RAT), LTE (Long Term Evolution)) and may be referred to as a communication / wireless / 5G device. Although not limited thereto, the wireless device may include a robot (100a), a vehicle (100b-1, 100b-2), an XR (eXtended Reality) device (100c), a hand-held device (100d), a home appliance (100e), an IoT (Internet of Things) device (100f), and an AI device / server (400). For example, the vehicle may include a vehicle equipped with a wireless communication function, an autonomous vehicle, a vehicle capable of performing vehicle-to-vehicle communication, etc. Here, the vehicle may include an Unmanned Aerial Vehicle (UAV) (e.g., a drone). XR devices include AR (Augmented Reality) / VR (Virtual Reality) / MR (Mixed Reality) devices, and can be implemented in the form of HMD (Head-Mounted Device), HUD (Head-Up Display) installed in a vehicle, television, smartphone, computer, wearable device, home appliance, digital signage, vehicle, robot, etc. Mobile devices can include smartphone, smart pad, wearable device (e.g., smart watch, smart glass), computer (e.g., laptop, etc.), etc. Home appliances can include TV, refrigerator, washing machine, etc. IoT devices can include sensors, smart meters, etc. For example, base stations and networks can also be implemented as wireless devices, and a specific wireless device (200a) can act as a base station / network node to other wireless devices.

[0467] Wireless devices (100a to 100f) can be connected to a network (300) via a base station (200). Artificial Intelligence (AI) technology can be applied to the wireless devices (100a to 100f), and the wireless devices (100a to 100f) can be connected to an AI server (400) via the network (300). The network (300) can be configured using a 3G network, a 4G (e.g., LTE) network, a 5G (e.g., NR) network, etc. The wireless devices (100a to 100f) can communicate with each other via the base station (200) / network (300), but can also communicate directly (e.g., sidelink communication) without going through the base station / network. For example, vehicles (100b-1, 100b-2) can communicate directly (e.g., V2V (Vehicle to Vehicle) / V2X (Vehicle to Everything) communication). In addition, IoT devices (e.g., sensors) can communicate directly with other IoT devices (e.g., sensors) or other wireless devices (100a to 100f).

[0468] Wireless communication / connection (150a, 150b, 150c) can be established between wireless devices (100a~100f) / base stations (200), and base stations (200) / base stations (200). Here, wireless communication / connection can be achieved through various wireless access technologies (e.g., 5G NR) such as uplink / downlink communication (150a), sidelink communication (150b) (or, D2D communication), and communication between base stations (150c) (e.g., relay, IAB (Integrated Access Backhaul). Through wireless communication / connection (150a, 150b, 150c), wireless devices and base stations / wireless devices, and base stations and base stations can transmit / receive wireless signals to each other. For example, wireless communication / connection (150a, 150b, 150c) can transmit / receive signals through various physical channels. To this end, at least some of various configuration information setting processes for transmitting / receiving wireless signals, various signal processing processes (e.g., channel encoding / decoding, modulation / demodulation, resource mapping / demapping, etc.), and resource allocation processes can be performed based on various proposals of the present specification.

[0469] Meanwhile, NR supports multiple numerologies (or subcarrier spacing (SCS)) to support various 5G services. For example, an SCS of 15 kHz supports a wide area in traditional cellular bands; an SCS of 30 kHz / 60 kHz supports dense urban areas, lower latency, and wider carrier bandwidth; and an SCS of 60 kHz or higher supports a bandwidth greater than 24.25 GHz to overcome phase noise.

[0470] The NR frequency band can be defined by two types of frequency ranges (FR1, FR2). The numerical values ​​of the frequency ranges can be changed, and for example, the two types of frequency ranges (FR1, FR2) can be as shown in Table 6 below. For convenience of explanation, among the frequency ranges used in the NR system, FR1 can mean the “sub 6 GHz range”, and FR2 can mean the “above 6 GHz range” and can be called millimeter wave (mmW).

[0471] [Table 6]

[0472]

[0473] As described above, the numerical value of the frequency range of the NR system can be changed. For example, FR1 may include a band from 410 MHz to 7125 MHz, as shown in Table 7 below. That is, FR1 may include a frequency band above 6 GHz (or 5850, 5900, 5925 MHz, etc.). For example, the frequency band above 6 GHz (or 5850, 5900, 5925 MHz, etc.) included within FR1 may include an unlicensed band. The unlicensed band may be used for various purposes, such as for vehicular communications (e.g., autonomous driving).

[0474] [Table 7]

[0475]

[0476] The claims set forth in this specification may be combined in various ways. For example, the technical features of the method claims of this specification may be combined and implemented as a device, and the technical features of the device claims of this specification may be combined and implemented as a method. Furthermore, the technical features of the method claims and the technical features of the device claims of this specification may be combined and implemented as a device, and the technical features of the method claims and the technical features of the device claims of this specification may be combined and implemented as a method.

Claims

1. In a method of operating a terminal in a wireless communication system, Receive TDD (time division duplex) configuration information indicating link direction, and Receive type setting information indicating whether it is FD (full duplex) type or HD (half duplex) type. The above FD type is a duplex type that can perform uplink operation and downlink operation simultaneously using different frequency bands within a slot, and the above HD type is a duplex type that can perform uplink operation or downlink operation within a slot. A method characterized in that, for a specific slot including symbols having different link directions, the type setting information independently indicates the FD type or the HD type for the symbols having the different link directions.

2. A method according to claim 1, characterized in that the type setting information independently indicates the FD type or the HD type for downlink symbols and flexible symbols of the remaining slots, excluding slots having only uplink symbols, for a specific period composed of a plurality of slots.

3. A method according to claim 2, characterized in that the terminal determines slots having only the uplink symbols as the HD type.

4. A method according to claim 2, wherein the type setting information includes a bitmap composed of the same number of bits as the number of the remaining slots, wherein the bitmap indicates the FD type or the HD type for downlink symbols included in each of the remaining slots.

5. A method according to claim 2, wherein the type setting information includes a bitmap composed of the same number of bits as the number of the remaining slots, wherein the bitmap indicates the FD type or the HD type for flexible symbols included in each of the remaining slots.

6. A method according to claim 2, wherein the type setting information includes information on a start slot and slot interval in which a downlink symbol operates as the FD type among the remaining slots.

7. A method according to claim 6, characterized in that the start slot is indicated through an offset value for a first slot among the plurality of slots.

8. A method according to claim 2, wherein the type setting information includes information on a start slot and slot interval in which a flexible symbol operates as the FD type among the remaining slots.

9. A method according to claim 8, characterized in that the start slot is indicated through an offset value for the first slot including a flexible symbol among the plurality of slots.

10. A method according to claim 1, wherein the type setting information independently informs the FD type or the HD type for each slot for downlink slots including only downlink symbols and flexible slots including flexible symbols, for a specific period consisting of a plurality of slots.

11. A method according to claim 10, wherein the type setting information includes a bitmap composed of a number of bits equal to the number of downlink slots, wherein the bitmap indicates the FD type or the HD type for each of the downlink slots.

12. A method according to claim 10, wherein the type setting information includes a bitmap composed of a number of bits equal to the number of flexible slots, wherein the bitmap indicates the FD type or the HD type for each slot for flexible symbols included in each of the flexible slots.

13. A method according to claim 10, wherein the type setting information includes information on a start slot and slot interval in which a downlink symbol among the downlink slots operates as the FD type.

14. A method according to claim 13, characterized in that the start slot is indicated through an offset value for a first slot among the plurality of slots.

15. A method according to claim 10, wherein the type setting information includes information on a start slot and slot interval in which a flexible symbol among the flexible slots operates as the FD type.

16. A method according to claim 15, characterized in that the start slot is indicated through an offset value for the first slot including a flexible symbol among the plurality of slots.

17. The terminal is, At least one transceiver; At least one memory; and At least one processor operably coupled with the at least one memory and the at least one transceiver, wherein the at least one processor comprises: Receive TDD (time division duplex) configuration information indicating link direction, Receive type setting information indicating whether it is FD (full duplex) type or HD (half duplex) type. The above FD type is a duplex type that can perform uplink operation and downlink operation simultaneously using different frequency bands within a slot, and the above HD type is a duplex type that can perform uplink operation or downlink operation within a slot. A terminal characterized in that, for a specific slot including symbols having different link directions, the type setting information independently indicates the FD type or the HD type for the symbols having the different link directions.

18. The terminal device, At least one memory; and At least one processor operably coupled to at least one memory, wherein the at least one processor comprises: Receive TDD (time division duplex) configuration information indicating link direction, Receive type setting information indicating whether it is FD (full duplex) type or HD (half duplex) type. The above FD type is a duplex type that can perform uplink operation and downlink operation simultaneously using different frequency bands within a slot, and the above HD type is a duplex type that can perform uplink operation or downlink operation within a slot. A device characterized in that, for a specific slot including symbols having different link directions, the type setting information independently indicates the FD type or the HD type for the symbols having the different link directions.

19. At least one computer readable medium (CRM) containing instructions based on being executed by at least one processor, A step of receiving TDD (time division duplex) configuration information indicating link direction; and Perform a step of receiving type setting information indicating whether it is FD (full duplex) type or HD (half duplex) type. The above FD type is a duplex type that can perform uplink operation and downlink operation simultaneously using different frequency bands within a slot, and the above HD type is a duplex type that can perform uplink operation or downlink operation within a slot. A CRM characterized in that, for a particular slot containing symbols having different link directions, the type setting information independently indicates the FD type or the HD type for the symbols having the different link directions.

20. In a method of operating a base station in a wireless communication system, Transmits TDD (time division duplex) configuration information indicating link direction to the terminal, and Transmit type setting information indicating whether it is FD (full duplex) type or HD (half duplex) type to the terminal. The above FD type is a duplex type that can perform uplink operation and downlink operation simultaneously using different frequency bands within a slot, and the above HD type is a duplex type that can perform uplink operation or downlink operation within a slot. A method characterized in that, for a specific slot including symbols having different link directions, the type setting information independently indicates the FD type or the HD type for the symbols having the different link directions.

21. The base station, At least one transceiver; At least one memory; and At least one processor operably coupled with the at least one memory and the at least one transceiver, wherein the at least one processor comprises: Transmit type setting information indicating whether it is FD (full duplex) type or HD (half duplex) type to the terminal. The above FD type is a duplex type that can perform uplink operation and downlink operation simultaneously using different frequency bands within a slot, and the above HD type is a duplex type that can perform uplink operation or downlink operation within a slot. A base station characterized in that, for a specific slot including symbols having different link directions, the type setting information independently indicates the FD type or the HD type for the symbols having the different link directions.

Images