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

Abstract

An operating method of a device in a wireless communication system, and a device are provided. The device determines, in a specific time resource, a first resource block (RB) for transmission of an uplink channel to which frequency hopping is applied, transmits the uplink channel through consecutive RBs in a frequency domain from the first RB, and determines differently the first RB according to whether the specific time resource is a half-duplex resource or a full-duplex resource, wherein, if the specific time resource is the full-duplex resource, the first RB is determined on the basis of a first parameter that indicates the lowest RB from among overlapping RBs between a first frequency resource forming an uplink bandwidth part and a second frequency resource forming an uplink subband, and a second parameter that indicates the size of the overlapping RBs.

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 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.

[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, which is different from half duplex (HD) operation in which only either downlink reception or uplink transmission can be performed 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 can be allocated 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] The former may be called subband-wise full duplex (hereinafter referred to as subband full duplex or SBFD), and the latter may be called spectrum-sharing full duplex (hereinafter referred to as SSFD).

[0005] In a time resource operating in SBFD (let's call this SBFD time resource), a terminal can perform transmission of an uplink channel (e.g., a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH)) using resources within an uplink subband.

[0006] In setting up repetitive transmissions on uplink channels, prior art assumed that only HD time resources existed and set the frequency resources for the repetitive transmissions. However, in future wireless communication systems, each repetition may be performed on SBFD time resources or HD time resources (non-SBFD time resources). In such cases, in SBFD time resources, the frequency resources allocated for uplink channel transmission may overlap with frequency resources other than uplink subbands.

[0007] 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.

[0008] In one aspect, a method of operating a terminal in a wireless communication system is provided. The method is characterized in that, in a specific time resource, a first resource block (RB) for uplink channel transmission using frequency hopping is determined, and the uplink channel is transmitted through consecutive resource blocks in a frequency domain from the first RB, wherein the first RB is determined differently depending on whether the specific time resource is a half duplex (HD) resource or a subband full duplex (SBFD) resource, and when the specific time resource is the SBFD resource, the first RB is determined based on i) a first parameter indicating a lowest resource block among resource blocks overlapping between a first frequency resource constituting an uplink bandwidth part (BWP) and a second frequency resource constituting an uplink subband, and ii) a second parameter indicating a size of the overlapping resource blocks.

[0009] In another aspect, a terminal, device, or computer-readable recording medium for executing the above method is provided.

[0010] In another aspect, a method of operating a base station in a wireless communication system and a base station using the operating method are provided.

[0011] A base station receives an uplink channel to which frequency hopping is applied in a specific time resource, wherein the uplink channel is received through consecutive resource blocks in a frequency domain from a first resource block (RB), and the first RB is determined differently depending on whether the specific time resource is an HD resource or an SBFD resource, and when the specific time resource is the SBFD resource, the first RB is determined based on i) a first parameter indicating a lowest resource block among resource blocks overlapping between a first frequency resource constituting an uplink BWP and a second frequency resource constituting an uplink subband, and ii) a second parameter indicating a size of the overlapping resource blocks.

[0012] According to the method according to the present disclosure, even if the UL transmittable resources differ in SBFD slots and non-SBFD slots, PUSCH transmission can be performed according to frequency hopping within the UL transmittable resources in each slot. Accordingly, PUSCH transmission efficiency can be increased and system throughput can be increased.

[0013] Figure 1 illustrates a wireless communication system to which the present disclosure can be applied.

[0014] Figure 2 is a block diagram showing a radio protocol architecture for a user plane.

[0015] Figure 3 is a block diagram showing the wireless protocol structure for the control plane.

[0016] Figure 4 illustrates the system architecture of a New Generation Radio Access Network (NG-RAN) to which NR is applied.

[0017] Figure 5 illustrates the functional division between NG-RAN and 5GC.

[0018] Figure 6 illustrates a frame structure that can be applied in NR.

[0019] Figure 7 illustrates a slot structure.

[0020] Figure 8 illustrates a core set.

[0021] Figure 9 illustrates an example of a frame structure for a new wireless access technology.

[0022] Figure 10 illustrates the structure of a self-contained slot.

[0023] Figure 11 illustrates physical channels and general signal transmission.

[0024] Figure 12 shows examples of how to apply full duplex within a carrier.

[0025] 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.

[0026] Figure 14 shows examples of a first time resource, a second time resource, a first frequency resource, and a second frequency resource.

[0027] Figure 15 illustrates another example of a first time resource, a second time resource, a first frequency resource, and a second frequency resource.

[0028] FIG. 16 illustrates an example of a BWP according to one embodiment of the present disclosure.

[0029] Figure 17 illustrates various inclusion relationships between UL BWP and UL subbands.

[0030] Figure 18 illustrates an operation method of a terminal in a wireless communication system.

[0031] Figure 19 illustrates the signaling process between a base station and a terminal.

[0032] Figure 20 illustrates a wireless device applicable to the present specification.

[0033] Figure 21 illustrates an example of a signal processing module structure.

[0034] Figure 22 illustrates another example of the structure of a signal processing module within a transmission device.

[0035] FIG. 23 illustrates an example of a wireless communication device according to an implementation example of the present disclosure.

[0036] Figure 24 shows an example of a processor (2000).

[0037] Figure 25 shows an example of a processor (3000).

[0038] Figure 26 illustrates another example of a wireless device.

[0039] Figure 27 illustrates another example of a wireless device to which the present specification applies.

[0040] Fig. 28 illustrates a communication system (1) applicable to this specification.

[0041] As used herein, “A or B” can mean “only A,” “only B,” or “both A and B.” In other words, as used herein, “A or B” can be interpreted as “A and / or B.” For example, as used herein, “A, B or C” can mean “only A,” “only B,” “only C,” or “any combination of A, B, and C.”

[0042] 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."

[0043] 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.”

[0044] 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.”

[0045] Additionally, parentheses used in this specification may mean “for example.” Specifically, when “control information (PDCCH)” is indicated, “PDCCH” may be suggested as an example of “control information.” In other words, “control information” in this specification is not limited to “PDCCH,” and “PDCCH” may be suggested as an example of “control information.” Furthermore, even when indicated as “control information (i.e., PDCCH),” “PDCCH” may be suggested as an example of “control information.”

[0046] Technical features individually described in a single drawing in this specification may be implemented individually or simultaneously.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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).

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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).

[0063] 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.

[0064] Below, we describe new radio access technology (new RAT, NR).

[0065] 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.

[0066] Figure 4 illustrates the system architecture of a New Generation Radio Access Network (NG-RAN) to which NR is applied.

[0067] 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.

[0068] Figure 5 illustrates the functional division between NG-RAN and 5GC.

[0069] 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.

[0070] Figure 6 illustrates a frame structure that can be applied in NR.

[0071] 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).

[0072] Table 1 below illustrates the subcarrier spacing configuration μ (also referred to as subcarrier spacing configuration).

[0073] [Table 1]

[0074]

[0075] Table 2 below shows the number of slots (N) in a frame according to the subcarrier spacing setting μ. frame,μ slot ), number of slots in a subframe (N subframe,μ slot ), number of symbols in the slot (N slot symb ) are examples.

[0076] [Table 2]

[0077]

[0078] In Fig. 6, examples are given for μ=0, 1, 2, and 3.

[0079] 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.

[0080] [Table 2-1]

[0081]

[0082] 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.

[0083] Figure 7 illustrates a slot structure.

[0084] 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.

[0085] A PDCCH (physical downlink control channel) may be composed of one or more CCEs (control channel elements) as shown in Table 3 below.

[0086] [Table 3]

[0087]

[0088] 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.

[0089] 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.

[0090] In NR, a new unit called a control resource set (CORESET) can be introduced. A terminal can receive PDCCHs in a CORESET.

[0091] Figure 8 illustrates a core set.

[0092] 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. NCORESET 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).

[0093] 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.

[0094] A terminal can be configured with multiple core sets.

[0095] 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.

[0096] 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.

[0097] 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.

[0098] 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.

[0099] The following technologies / features can be applied in NR:

[0100] Self-contained subframe structure

[0101] Figure 9 illustrates an example of a frame structure for a new wireless access technology.

[0102] 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.

[0103] 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.

[0104] 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).

[0105] Figure 10 illustrates the structure of a self-contained slot.

[0106] 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.

[0107] 1. DL only configuration

[0108] 2. UL only configuration

[0109] 3. Mixed UL-DL configuration

[0110] - DL area + GP (Guard Period) + UL control area

[0111] - DL control area + GP + UL area

[0112] DL area: (i) DL data area, (ii) DL control area + DL data area

[0113] UL domain: (i) UL data domain, (ii) UL data domain + UL control domain

[0114] 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.

[0115] Analog Beamforming #1

[0116] 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.

[0117] 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.

[0118] 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.

[0119] Analog Beamforming #2

[0120] 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.

[0121] 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.

[0122] 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.

[0123] 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.

[0124] 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.

[0125] 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.

[0126] 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.

[0127] 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:

[0128] 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),

[0129] 2) PDCCH DM-RS scrambling sequence initialization value,

[0130] 3) Interval in the time domain of the core set (can be given in symbol units),

[0131] 4) A set of resource blocks,

[0132] 5) CCE-to-REG mapping parameters,

[0133] 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');

[0134] 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.

[0135] 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.

[0136] 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.

[0137] 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).

[0138] [Table 4]

[0139]

[0140] 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.

[0141] 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:

[0142] 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.

[0143] 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.

[0144] Figure 11 illustrates physical channels and general signal transmission.

[0145] 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.

[0146] 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 receive the DL RS (Downlink Reference Signal) during the initial cell search phase to check the downlink channel status.

[0147] (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 primary synchronization signal and secondary synchronization signal of the cell, and the PBCH DMRS.

[0148] 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).

[0149] Thereafter, the terminal can perform a random access procedure (Random Access Procedure) to complete connection to the base station (S13-S16). Specifically, the terminal can 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 can 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 can be considered a process of receiving a contention resolution message) (S16).

[0150] 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.

[0151] 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.

[0152] 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.

[0153] 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.

[0154] 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.

[0155] 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).

[0156] In this disclosure, the following are defined:

[0157] - AC(x): Access link between node(x) and terminal(s).

[0158] - BH(xy): Backhaul link between node(x) and node(y).

[0159] 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.

[0160] 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.

[0161] Technical features individually described in a single drawing in this specification may be implemented individually or simultaneously.

[0162] 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.

[0163] Now, we describe full duplex operation.

[0164] 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.

[0165] 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.

[0166] Figure 12 shows examples of how to apply full duplex within a carrier.

[0167] 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.

[0168] In the case of SBFD, DL and UL transmission and reception can be performed through different frequency resources within the same time resource within the same carrier (e.g., carrier #0). In other words, different frequency resources can be used for DL ​​and UL for the same time resource.

[0169] In the case of SSFD, transmission and reception of DL and UL can be performed through the same frequency resources or overlapping frequency resources in the same time resource within the same carrier (e.g., carrier #0). That is, the same or overlapping frequency resources can be used for DL ​​and UL for the same time resource.

[0170] 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.

[0171] 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.

[0172] In (a) of Fig. 13, some time resources operating in SBFD are indicated as SBFD, and time resources operating in half-duplex are indicated as HD. In (b) of Fig. 13, 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. That is, (a) and (b) of Fig. 13 can be interpreted as examples in which there are 5 slots or 5 symbols on the time axis.

[0173] 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, leaving it empty. The guard subband may also be referred to by other terms, such as guard frequency resources or guard subcarrier(s).

[0174] 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.

[0175] In this disclosure, slot resources operating in half-duplex are referred to as HD slots, and slot resources operating in SBFD and SSFD are referred to as SBFD slots and SSFD slots, respectively. Additionally, SSFD slots and SSFD slots may be collectively referred to as FD slots.

[0176] 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.

[0177] 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.

[0178] 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.

[0179] 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.

[0180] Meanwhile, when operating in intra-carrier full duplex, the terminal may fallback to TDD in the time resource operating in SBFD.

[0181] In the following, the term "network" may be interpreted as a base station or CU / DU. Furthermore, the term "terminal (UE)" may be interpreted as a mobile terminal (MT) of an IAB node or an MT of a network-controlled repeater (NCR-MT).

[0182] <SBFD 및 SSFD 동작을 위한 DL / UL 시간 / 주파수 자원의 특성>

[0183] 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).

[0184] In the first time resource performing the HD operation, the DL operation or the UL operation is performed across the entire frequency resources constituting the entire system bandwidth (or carrier). 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.

[0185] 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) constituting the system band (or carrier) of the cell, and performs the UL operation through all or part of the frequency resources (second frequency resources).

[0186] Figure 14 shows examples of a first time resource, a second time resource, a first frequency resource, and a second frequency resource.

[0187] 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.

[0188] 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.

[0189] Figure 15 illustrates another example of a first time resource, a second time resource, a first frequency resource, and a second frequency resource.

[0190] 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.

[0191] 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.

[0192] The first frequency resource and / or the second frequency resource may have all or some of the following characteristics:

[0193] 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.

[0194] 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.

[0195] 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.

[0196] 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.

[0197] 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.

[0198] 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.

[0199] When a specific time resource is configured as a time resource that operates in SBFD (e.g., an SBFD slot or SBFD symbol), both DL resources and UL resources may 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 is performed only within the DL subband. Therefore, even if there is no UL signal transmitted in the UL subband, DL transmission can be performed only within the DL subband.

[0200] 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.

[0201] 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.

[0202] 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.

[0203] In the case of fallback operation, transitions between SBFD and non-SBFD time resources may occur more frequently than in the case of non-fallback operation. This may lead to increased operational complexity of the base station and terminal, as well as increased overhead due to the transition period.

[0204] In the present disclosure, a time resource operating in SBFD or an SBFD symbol / slot 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 / slot, or an HD symbol / slot may mean a 'first time resource'.

[0205] 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'.

[0206] 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 SSFD operation.

[0207] The present disclosure may include the following terminal operations.

[0208] 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.

[0209] 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.

[0210] 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.

[0211] In the existing NR TDD carrier, the base station performs only one operation, either downlink or uplink, in a specific time resource. In this case, the base station always operates in the downlink in the time resource where the SSB (synchronization signal block, also called SS / PBCH) is transmitted.

[0212] For terminals operating in existing TDD, the following assumptions are made regarding the symbols in which SSB is transmitted.

[0213] 1) SS / PBCH transmission symbols cannot be configured for uplink by TDD configuration (e.g., TDD-UL-DL-ConfigCommon and / or TDD-UL-DL-ConfigDedicated).

[0214] 2) SS / PBCH transmission symbols cannot be set to uplink by SFI (slot format indication) of DCI format 2_0.

[0215] 3) When SS / PBCH is transmitted in a symbol configured as flexible by TDD configuration (e.g., TDD-UL-DL-ConfigCommon and / or TDD-UL-DL-ConfigDedicated), if the uplink transmission of the terminal overlaps with the SS / PBCH symbol, the uplink transmission is not performed. For example, if the transmission of SRS overlaps with the SS / PBCH symbol in a flexible symbol, SRS transmission is not performed in the overlapped symbol(s).

[0216] Meanwhile, in FDR environments such as SBFD and SSFD, both DL and UL resources can exist within the same time frame from the cell (network, base station) perspective. Therefore, the base station can simultaneously transmit downlink and receive uplink data.

[0217] Therefore, even if SS / PBCH is transmitted in a time resource where the cell performs FDR operation, the base station can perform reception of uplink transmission of the terminal while transmitting SS / PBCH.

[0218] Meanwhile, according to the current standard, a terminal cannot perform uplink transmission on symbol resources where SS / PBCH is transmitted by the network. In other words, a terminal cannot perform FDR operation on SS / PBCH transmission time resources.

[0219] When a specific time resource is set to operate as a SBFD time resource, both DL and UL resources exist in that time resource. At this time, 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 an SBFD resource, the base station's DL transmission occurs only within the DL subband. In other words, even if there is no UL signal transmitted by the terminal in the UL subband, DL transmission can only be performed within the DL subband.

[0220] Even if a specific time resource is determined to be an SBFD symbol, if there is no UL transmission from a terminal to be received by the base station, the base station may consider performing DL transmission not only on the DL subband but also outside the DL subband to improve DL throughput. In other words, performing DL transmission across the entire bandwidth may be considered.

[0221] In other words, it is possible to consider performing a fallback to TDD operation that performs DL or UL operation over the entire band, rather than SBFD operation over the DL / UL subband, in a resource determined as an SBFD symbol.

[0222] Hereinafter, a terminal that knows that a base station can perform full duplex operation may be collectively referred to as an FD-aware terminal. A terminal that knows that a base station can perform subband non-overlapping full duplex (i.e., SBFD) operation may be collectively referred to as an SBFD-aware terminal. A terminal that knows that a base station can perform spectrum shared (or subband overlapping) full duplex (i.e., SSFD) operation may be referred to as an SSFD-aware terminal.

[0223] If a base station supports both half-duplex and full-duplex operations, it can inform the terminal of the resources (time or frequency, or both) that can (or are expected to) perform half-duplex and full-duplex.

[0224] If a base station is capable of SSFD operation, and in the case of a full-duplex base station, simultaneous UL reception is possible on some or all of the frequency resources available for DL ​​transmission at the base station. In other words, some frequency resources may allow for both DL transmission / reception and UL reception / transmission. In this case, in the case of SSFD, information about frequency resources that support SSFD can be communicated to the terminal. In addition, information about time resources that support SSFD can be communicated to the terminal.

[0225] For full duplex terminals, UL transmission may be possible simultaneously on some or all frequency resources available for DL ​​reception of the terminal.

[0226] The following description describes a method for indicating time( / frequency) resource information for performing SBFD, but this method can also be used to indicate time( / frequency) resources for performing SSFD when the base station is capable of half-duplex and SSFD operations.

[0227] Below, a method for determining frequency resources of PUSCH transmission during intra-carrier full duplex operation is proposed.

[0228] UE PUSCH frequency hopping procedure.

[0229] <PUSCH 반복 타입 A 및 TBoMS를 위한 주파수 홉핑(Frequency hopping for PUSCH repetition Type A and for TB processing over multiple slots)>

[0230] PUSCH repetition type A is a slot-based repetition, which repeats with the same PUSCH transmission start symbol position and PUSCH transmission symbol length (meaning the number of symbols transmitting the PUSCH) for each slot. If there is an invalid symbol that cannot be used for PUSCH transmission among the symbol resources that constitute a specific PUSCH repetition, the transmission of the corresponding PUSCH repetition is dropped and not performed.

[0231] In PUSCH repetition type A and TBoMS other than PUSCH scheduled by DCI format 0_0 with CRC scrambled by TC-RNTI or PUSCH scheduled by Random Access Response (RAR) UL grant or fallback RAR UL grant, frequency hopping can be configured by the UE i) by the upper layer parameter 'frequencyHoppingDCI-0-2' of 'pusch-Config' for PUSCH transmission scheduled by DCI format 0_2, ii) by 'frequencyHopping' provided in 'pusch-Config' for PUSCH transmission scheduled by DCI format other than DCI format 0_2, iii) by 'frequencyHopping' of 'configuredGrantConfig' for configured PUSCH transmission.

[0232] For PUSCH repetition type A scheduled by DCI format 0_0 with CRC scrambled by RAR UL grant or temporary cell Radio Network Temporary Identifier (TC-RNTI), the UE can set frequency hopping by the frequency hopping flag information field of the RAR UL grant or by the frequency hopping flag information field of DCI format 0_0 with CRC scrambled by TC-RNTI.

[0233] At this time, one of two frequency hopping modes can be set.

[0234] 1) Intra-slot frequency hopping. This is applicable to single-slot and multi-slot PUSCH transmissions. For example, it is applicable to multi-slot PUSCH transmissions scheduled by DCI format 0_1 ​​or 0_2, each multi-PUSCH transmission scheduled by DCI when the upper layer parameter 'pusch-TimeDomainAllocationListForMultiPUSCH' is set, and multi-configured PUSCH transmissions.

[0235] 2) Inter-slot frequency hopping. This is applicable to multi-slot PUSCH transmission.

[0236] When operating with SSFD, the UE does not expect that two hops of a PUSCH transmission are in different RB sets.

[0237] For resource allocation type 2, the terminal transmits PUSCH without frequency hopping. In resource allocation type 2, a set of one or more interlace indices can be provided to the terminal.

[0238] For resource allocation type 1, regardless of whether transform precoding is enabled for PUSCH transmission, if the frequency hopping field of the detected DCI format or the random access response UL grant is set to 1, or if the higher layer parameter 'frequencyHoppingOffset' is provided for type 1 PUSCH transmission with the set grant, the UE can perform PUSCH frequency hopping. Otherwise, PUSCH frequency hopping is not performed. In resource allocation type 1, resource block allocation information can indicate to the UE a set of non-interleaved virtual resource blocks contiguously allocated within an active BWP.

[0239] Frequency offset candidates can be set by upper layer parameters.

[0240] For example, if the size of the active BWP is less than 50 PRB, one of the two offsets set by the upper layer parameters may be indicated by the UL grant.

[0241] If the size of the active BWP is greater than 50 PRB, one of the four offsets set by the upper layer parameters may be indicated by the UL grant.

[0242] For PUSCH based on Type 1 configured UL grant, the frequency offset can be provided by the upper layer parameter 'frequencyHoppingOffset' of 'rrc-ConfiguredUplinkGrant'.

[0243] For PUSCH, MsgA (Message A of Random Access Process) frequency offset can be provided by higher layer parameters.

[0244] For frequency hopping within a slot, the starting RB of each hop can be given as follows.

[0245] [Formula 1]

[0246]

[0247] In the above equation, i=0 and i=1 are the first hop and the second hop, respectively.

[0248] RB start is the starting RB within the UL BWP.

[0249] RB offset is the frequency offset in RBs between the two frequency hops. The number of symbols in the first hop is floor(N symb PUSCH,s / 2) is given, and the number of symbols in the second hop is 'N symb PUSCH,s - floor(N symb PUSCH,s / 2)' is given. Here, N symb PUSCH,s is the length of a PUSCH transmission in OFDM symbols of one slot. Floor(x) is the largest integer less than or equal to x.

[0250] For inter-slot frequency hopping, when 'PUSCH-DMRS-Bundling' is not activated, or for inter-slot frequency hopping of PUSCH scheduled by RAR UL grant or DCI format 0_0 with CRC scrambled by TC-RNTI, slot n s μ Starting from RB is given by the following equation:

[0251] [Formula 2]

[0252]

[0253] In Equation 2, n s μ is the current slot number within a system radio frame capable of multi-slot PUSCH transmission.

[0254] RB start is the starting RB within the UL BWP.

[0255] RB offset is the frequency offset in RBs between the two frequency hops.

[0256] For inter-slot frequency hopping, if 'PUSCH-DMRS-Bundling' is enabled, or for PUSCH not scheduled by RAR UL grant or DCI format 0_0 with CRC scrambled by TC-RNTI, slot n s μ Starting from RB is given by the following equation:

[0257] [Formula 3]

[0258]

[0259] n in equation 3 s μ is the current slot number within the system radio frame.

[0260] N FH is the value of the upper layer parameter 'PUSCH-Frequencyhopping-Interval', and RB start is the starting RB within the UL BWP. RB offset is the frequency offset in RBs between the two frequency hops.

[0261] <PUSCH 반복 타입 B에 대한 주파수 홉핑(Frequency hopping for PUSCH repetition Type B)>

[0262] PUSCH repetition type B repeats the actual PUSCH transmission symbol length in units of 10 consecutive symbols. For example, if a PUSCH is transmitted over 10 symbols, PUSCH repetition is performed in units of 10 consecutive symbols. Repetition that determines PUSCH repetition transmission time resources without considering slot boundaries, invalid symbols, etc. is called nominal repetition. However, in the case of actual PUSCH repetition, a single PUSCH cannot be transmitted while including a slot boundary. That is, if a PUSCH transmission includes a slot boundary, two actual repetitions are performed with the slot boundary as the boundary. Furthermore, a single PUSCH transmission can only be performed over consecutive symbols. If an invalid symbol exists in the time resource where a PUSCH repetition should be transmitted, actual repetition is configured using consecutive symbols with the invalid symbol as the boundary.

[0263] In PUSCH repetition type B, frequency hopping can be configured by the upper layer parameter 'frequencyHoppingDCI-0-2' of 'pusch-Config' for PUSCH transmission scheduled by DCI format 0_2, by 'frequencyHoppingDCI-0-1' provided in 'pusch-Config' for PUSCH transmission scheduled by DCI format 0_1, and by 'frequencyHoppingPUSCH-RepTypeB' provided in 'rrc-ConfiguredUplinkGrant' for Type 1 configured PUSCH transmission. The frequency hopping mode for Type 2 configured PUSCH transmission follows the configuration of the activated DCI format.

[0264] One of two frequency hopping modes can be set.

[0265] 1) Inter-repetition frequency hopping

[0266] 2) Inter-slot frequency hopping

[0267] When operating with shared spectrum channel access (e.g., SSFD), the UE does not expect the two hops of a PUSCH transmission to be in different RB sets.

[0268] For resource allocation type 1, regardless of whether transform precoding is enabled for PUSCH transmission, if the frequency hopping field of the detected DCI format is set to 1 or the higher layer parameter 'frequencyHoppingPUSCH-RepTypeB' is provided for type 1 PUSCH transmission with configured grant, the UE can perform PUSCH frequency hopping; otherwise, PUSCH frequency hopping is not performed.

[0269] For PUSCH scheduled by DCI format 0_1 ​​or PUSCH based on type 2 configured UL grant activated by DCI format 0_1 ​​and resource allocation type 1, frequency offsets are configured by the higher layer parameter 'frequencyHoppingOffsetLists' of 'pusch-Config'. For PUSCH scheduled by DCI format 0_2 or PUSCH based on type 2 configured UL grant activated by DCI format 0_2 and resource allocation type 1, frequency offsets are configured by the higher layer parameter 'frequencyHoppingOffsetListsDCI-0-2' of 'pusch-Config'.

[0270] If the size of the active BWP is less than 50 PRB, one of the two offsets set by the upper layer is indicated by the UL grant.

[0271] If the size of the active BWP is greater than 50 PRB, one of the four offsets set by the upper layer is indicated by the UL grant.

[0272] For PUSCH based on Type 1 configured UL grant, the frequency offset is provided by the upper layer parameter 'frequencyHoppingOffset' of 'rrc-ConfiguredUplinkGrant'.

[0273] For frequency hopping between iterations, the starting RB for an actual iteration within the nth nominal iteration is given by:

[0274] [Formula 4]

[0275]

[0276] In the above equation 4, RB start is the starting RB within the UL BWP. RBoffset is the frequency offset in RBs between the two frequency hops.

[0277] For frequency hopping between slots, slot n s μ During the start RB may follow inter-slot frequency hopping for PUSCH repetition type A.

[0278] <PDSCH / PUSCH / PUCCH 반복들>

[0279] According to the existing NR standard, repetition is supported for PDSCH, PUSCH, and PUCCH transmission. That is, PDSCH / PUSCH / PUCCH can be transmitted repeatedly. The repetition behavior of PDSCH, PUSCH, and PUCCH is as follows.

[0280] 1) PDSCH

[0281] When a PDSCH is repeatedly transmitted K times, the PDSCH is repeatedly transmitted through K consecutive slots starting from the slot in which the PDSCH is instructed to be transmitted. The symbol resources for transmitting the PDSCH within the slot are determined through the TDRA (time domain resource allocation) field for the PDSCH, and the same symbol resources are used for the K slots. If at least one symbol among the symbols allocated for transmitting the PDSCH in a specific slot that constitutes the PDSCH transmission cannot be used for PDSCH transmission, the transmission of the PDSCH in the corresponding slot is dropped / omit.

[0282] 2) PUSCH

[0283] There are two types of PUSCH repetitions: PUSCH repetition type A and PUSCH repetition type B.

[0284] a. PUSCH repeat type A.

[0285] For PUSCH repetition type A, the repetition operation varies depending on the value of information (e.g., 'AvailableSlotCounting') set by the upper layer.

[0286] When PDSCH is transmitted repeatedly K times and 'AvailableSlotCounting' is enabled, PUSCH is transmitted repeatedly through K available slots starting from the slot instructed to transmit PUSCH. At this time, the next slot is excluded from the available slots.

[0287] 1) When at least one symbol among the symbols allocated for PUSCH transmission overlaps with a downlink symbol indicated by the cell-specific TDD UL / DL configuration 'tdd-UL-DL-ConfigurationCommon' or the terminal-specific TDD UL / DL configuration 'tdd-UL-DL-ConfigurationDedicated'.

[0288] 2) If at least one symbol among the symbols allocated for PUSCH transmission overlaps with a symbol of an SS / PBCH block having an index provided by 'ssb-PositionsInBurst' indicating the time domain position where the SS / PBCH block is transmitted.

[0289] If 'AvailableSlotCounting' is not enabled or absent, the PUSCH is repeatedly transmitted through K consecutive slots from the slot instructed to transmit the PUSCH.

[0290] The symbol resources for transmitting the PUSCH within the K slots that constitute the PUSCH transmission are determined through the TDRA field of the PUSCH, and the same symbol resources are used in each of the K slots. If at least one symbol among the symbols allocated for transmitting the PUSCH in a specific slot that constitutes the PUSCH transmission cannot be used for PUSCH transmission, the PUSCH transmission in that slot is dropped / omitted.

[0291] b. PUSCH repetition type B

[0292] For PUSCH repetition type B, when the number of symbols allocated for PUSCH transmission through the TDRA table is S and the number of PUSCH repetitions is K, K nominal repetitions are formed with S*K consecutive symbol resources starting from the first symbol in the slot in which PUSCH is indicated to be transmitted. At this time, each nominal repetition consists of S symbols.

[0293] Each nominal repetition consists of one or more actual repetitions. Each actual repetition consists of two or more consecutive symbols. Invalid symbols are excluded from the symbol resources that constitute the actual repetition. After excluding invalid symbols from the symbol resources that constitute the nominal repetition, the consecutive symbol resources constitute one actual repetition. In this case, the actual repetition consists of symbols within the same slot. If the consecutive symbol resources include a slot boundary, different actual repetitions are formed based on the slot boundary.

[0294] At this time, invalid symbols include:

[0295] 1) Downlink symbols set by 'tdd-UL-DL-ConfigurationCommon' or 'tdd-UL-DL-ConfigurationDedicated'.

[0296] 2) Invalid symbols indicated by the invalid symbol pattern indicator of the UL grant.

[0297] 3) SS / PBCH symbol.

[0298] 4) Symbol(s) of CORESET for Type0-PDCCH CSS set indicated by 'pdcch-ConfigSIB1' in MIB.

[0299] 5) Invalid symbols for DL-UL switching set by RRC.

[0300] For actual repetitions that constitute a PUSCH transmission, if at least one symbol within the actual repetition cannot be used for a PUSCH transmission, the PUSCH transmission in that actual repetition is dropped / omitted.

[0301] 3) PUCCH

[0302] When a PUCCH is transmitted repeatedly K times, the PUCCH is transmitted repeatedly through K available slots starting from the slot in which the PUCCH is instructed to be transmitted. At this time, the next slot is excluded from the available slots.

[0303] 1) If at least one symbol among the symbols allocated for PUCCH transmission overlaps with a downlink symbol indicated by 'tdd-UL-DL-ConfigurationCommon' or 'tdd-UL-DL-ConfigurationDedicated'.

[0304] 2) If at least one symbol among the symbols allocated for PUCCH transmission overlaps with a symbol of the SS / PBCH block having an index provided by 'ssb-PositionsInBurst'.

[0305] The same symbol resources are used for PUCCH transmission in each of the K slots that constitute PUCCH transmission. If at least one symbol among the symbols allocated for PUCCH transmission in a particular slot that constitutes PUCCH transmission cannot be used for PUCCH transmission, PUCCH transmission in that slot is dropped / omitted.

[0306] However, when a terminal transmits an uplink channel (e.g., PUCCH or PUSCH) in an SBFD environment, the frequency resources available for UL transmission in the HD slot and the SBFD slot may be different.

[0307] In consideration of this, the present disclosure proposes a method for determining frequency resources of uplink channel transmission during full duplex operation within a carrier.

[0308] The present disclosure assumes SBFD operation, where a cell performs DL and UL operations simultaneously using different frequency resources (e.g., subbands) within a specific time resource. However, the contents of the present disclosure can also be applied to a cell performing SSFD operation.

[0309] The base station may perform full duplex operation and the terminal may perform half duplex operation, or the base station may perform half duplex operation and the terminal may perform full duplex operation. Alternatively, both the base station and the terminal may support full duplex operation.

[0310] If a specific terminal is known to the base station to be capable of performing full duplex operation, the specific terminal may be referred to as an FD-aware terminal. If the base station is capable of performing subband non-overlapping full duplex (i.e., SBFD) operation, and in this case, the terminal that is aware of this information may be referred to as an SBFD-aware terminal. If the base station is capable of performing spectrum sharing (or subband overlapping) full duplex (i.e., SSFD) operation, and in this case, the terminal that is aware of this information may be referred to as an SSFD-aware terminal.

[0311] If the base station supports both half-duplex and full-duplex operation, it can inform the terminal of the resources (e.g., time or frequency, or both time and frequency) that can (or are expected to) perform half-duplex and full-duplex.

[0312] For a full-duplex (e.g., SSFD) base station, UL reception is possible simultaneously on some or all of the frequency resources available for DL ​​transmission. That is, some frequency resources may support both DL transmission / reception and UL reception / transmission. In this case, in the case of SSFD, information about the frequency resources available for SSFD can be communicated. In addition, information about the time resources available for SSFD can be communicated.

[0313] In the case of a full-duplex terminal, UL transmission may be possible simultaneously on some or all frequency resources among the frequency resources available for DL ​​reception of the terminal. In the present disclosure, a terminal performing half-duplex operation is referred to as an HD terminal, and a terminal capable of (or performing) full-duplex operation is referred to as an FD terminal.

[0314] When a base station performs full duplex operation such as SBFD or SSFD, it may perform SSFD and / or SBFD operation only for some time / frequency resources. In the case of SBFD-aware terminals and / or SSFD-aware terminals, if the cell knows the time / frequency resources on which the cell performs SSFD and / or SBFD operation, the cell may perform the operation of the terminal differently depending on the resource on which the cell operates in half duplex (HD), the resource on which the cell operates in SBFD, or the resource on which the cell operates in SSFD. For example, the terminal may perform transmission and reception by differently determining the time / frequency resource on which it performs reception of a DL signal / channel and / or transmission of a UL signal / channel as an HD resource, an SBFD resource, or an SSFD resource.

[0315] Through the contents of this disclosure, the base station and the terminal can operate as follows.

[0316] The base station may perform a half-duplex operation in which only one of DL transmission or UL reception is performed in the entire frequency resources constituting the cell in the time resources operating in HD, and may perform a full-duplex operation in which DL transmission is performed through the first frequency resource (i.e., DL subband resource) within the frequency resources constituting the cell and UL reception is simultaneously performed through the second frequency resource (i.e., UL subband resource) within the frequency resources constituting the cell in the time resources operating in SBFD and SSFD.

[0317] To this end, the base station determines / determines time resources corresponding to the first time resource (i.e., the HD symbol) and the second time resource (i.e., the FD symbol) and transmits configuration information regarding the first time resource (i.e., the HD symbol) and / or the second time resource (i.e., the FD symbol) to the terminal. The FD symbol may include at least one of the SBFD symbol and the SSFD symbol. More specifically, the base station determines / determines time resources corresponding to the HD symbol, the SBFD symbol, and / or the SSFD symbol, and transmits configuration information regarding the HD symbol, the SBFD symbol, and / or the SSFD symbol to the terminal.

[0318] At this time, the DL subband resources and / or UL subband resources may be configured differently in the time resources operating in SBFD and in the time resources operating in SSFD. In the time resources operating in SBFD, the DL subband resources and UL subband resources are configured so as not to overlap each other. In the time resources operating in SSFD, the DL subband resources and UL subband resources may be configured so as to overlap each other. The DL subband / UL subband resources may be configured with a part of the frequency resources of the system band or may be configured with the entire frequency resources of the system band.

[0319] The terminal receives configuration information about an HD symbol, an SBFD symbol, and / or an SSFD symbol from the network, and determines the positions of the HD symbol, the SBFD symbol, and / or the SSFD symbol. In the HD symbol, the terminal performs DL reception (UL transmission) through the entire frequency resources for which the terminal is configured to operate DL reception (UL transmission), and in the SBFD symbol and / or the SSFD symbol, the terminal performs DL reception (UL transmission) through DL subband (UL subband) resources that are the same as or limited to the frequency resources for which the terminal performs DL reception (UL transmission) in the HD symbol. In this case, even if the terminal is configured to perform DL reception (UL transmission) in a frequency resource that does not correspond to a DL subband resource (UL subband resource) in the SBFD symbol and / or SSFD symbol resource, the terminal does not perform DL reception (UL transmission) in the frequency resource that does not correspond to a DL subband resource (UL subband resource).

[0320] When a cell operates in SBFD, frequency resources that cannot be used for UL operations may exist within the UL BWP resources in which the terminal operates. For example, DL subbands and / or guard subbands may exist within the UL BWP resources. While HD slots consist solely of DL or UL frequency resources, SBFD slots coexist with DL and UL frequency resources.

[0321] In the present disclosure, a method for determining a transmission frequency resource of a PUSCH is proposed when there is a frequency resource (e.g., a DL subband, a guard subband) that cannot be used for UL transmission within a UL BWP resource in an SBFD slot.

[0322] In the following, the transmission of PUSCH is assumed and described, but the proposal of the present disclosure can also be applied to PUCCH or PDSCH.

[0323] Figure 16 shows an example of BWP.

[0324] In the embodiment of Fig. 16, a case is shown where there are three BWPs within the carrier bandwidth.

[0325] Referring to Figure 16, a common resource block (CRB) may be a resource block numbered from one end of a carrier band to the other. A PRB may be a resource block numbered within each BWP. Point A may indicate a common reference point for the resource block grid.

[0326] BWP is point A, offset from point A (N start BWP ) and bandwidth (N size BWP ) can be set by. For example, point A can be an external reference point to which subcarrier 0 of all numerologies (e.g., all numerologies supported by the network on that carrier) is aligned. For example, the offset (N start BWP ) may be the PRB spacing between the lowest subcarrier and point A in a given numerology. For example, the bandwidth (N size BWP ) can be the number of PRBs in a given numerology.

[0327] In this disclosure, it is assumed that the frequency resource in which the PUSCH is transmitted in a specific slot consists of P consecutive PRBs starting from the lowest PRB (i.e., the PRB with the lowest index). At this time, the starting RB (hereinafter, RB) start ) can be expressed as:

[0328] If PUSCH does not perform frequency hopping, the lowest PRB is 'RB start 'It could be.

[0329] When PUSCH performs frequency hopping, the lowest PRB is assigned to 'RB' according to the hop number. start ' or 'RB start + RB offset ' can mean.

[0330] If 'PUSCH-DMRS-Bundling' is not enabled in inter-slot frequency hopping, slot n s μ Starting from RB can be given by the following equation.

[0331] [Formula 5]

[0332]

[0333] In Equation 5, n s μ Indicates the current slot number within the system radio frame in which multi-slot PUSCH transmission is possible. RB start is the starting RB within the UL BWP. For example, RB start may mean the starting RB within the UL BWP indicated via the FDRA field of the DCI (UL Grant).

[0334] RB offset is the frequency offset in RBs between two frequency hops. Here, RB offset Candidate values ​​of the value are set through 'FrequencyHoppingOffsetLists', and RB to be applied among the candidate values offset The value can be indicated via the Frequency domain resource assignment (FDRA) field of DCI.

[0335] For resource allocation type 1, the FDRA field The Least Significant Bits (LSBs) of the dog provide the following resource allocation:

[0336] 1) For PUSCH hopping of resource allocation type 1, N UL_hop The MSB (Most Significant Bit) bits of the N bits are used to indicate the frequency offset. If the upper layer parameter 'frequencyHoppingOffsetLists' contains two offset values, N UL_hop =1, and if the upper layer parameter 'frequencyHoppingOffsetLists' contains 4 offset values, then N UL_hop =2.

[0337] 2) And, The bits of the dog provide frequency domain resource allocation.

[0338] 3) For non-PUSCH hopping of resource allocation type 1, The bits of the dog provide frequency domain resource allocation.

[0339] A. Method for determining PUSCH transmission frequency resources according to transmission slot type.

[0340] When DL / guard subbands exist within the UL BWP in an SBFD slot, the location and amount of PUSCH transmission frequency resources in the HD slot and the SBFD slot need to be different. To this end, the PUSCH transmission frequency resources can be determined based on the slot type (HD slot or SBFD slot) of the slot in which the PUSCH is transmitted, by at least one of the methods below.

[0341] Method 1. Use the existing PUSCH frequency resource setting and indication method as is, but the network sets the PUSCH resources appropriately so that the PUSCH is not transmitted on the DL / guard subband resources and applies the RB through DCI. offset You can indicate the value.

[0342] In this case, considering that the appropriate PUCCH resources in the HD slot and the SBFD slot may be different, more diverse RBs are required. offsetYou can allow 'frequencyHoppingOffsetLists' to contain more offset values ​​than the existing 2 or 4 offset values ​​to allow you to specify values.

[0343] Method 2. In addition to the existing 'frequencyHoppingOffsetLists' in 'PUSCH-Config', you can set 'frequencyHoppingOffsetLists' for SBFD slots.

[0344] At this time, the existing 'frequencyHoppingOffsetLists' are applied to the HD slot, and additional 'frequencyHoppingOffsetLists' can be applied to the SBFD slot. The offset values ​​included in the 'frequencyHoppingOffsetLists' for the SBFD slot can be set to avoid the DL and guard subbands.

[0345] In this case, the terminal uses the offset values ​​included in the existing 'frequencyHoppingOffsetLists' applied to the HD slot when the slot type of the slot in which the PUSCH is transmitted is an HD slot to select the RB to be applied to the PUSCH transmission. offset Determine the value and, if it is an SBFD slot, use the offset values ​​included in 'frequencyHoppingOffsetLists' applied to the SBFD slot to determine the RB to apply to the PUSCH transmission. offset You can judge the value.

[0346] In this case, the terminal transmits RBs in the UL slot and SBFD slot. offset To determine the value, the same bits (N) in the FDRA field of the DCI UL_hop (MSB bits) can be used.

[0347] or RB in UL slot and SBFD slot offsetTo determine the value, different bits in the FDRA field of the DCI can be used. In this case, in the UL slot, the N bits in the FDRA field of the DCI are used as before. UL_hop RB applied based on MSB bits offset The value is judged and in the SBFD slot, another N in the FDRA field of the DCI UL_hop RB applied based on bits offset You can judge the value.

[0348] Method 3. RB based on the same 'frequencyHoppingOffsetLists' in UL slot and SBFD slot offset Judge the value, RB in UL slot and SBFD slot offset To determine the value, different bits within the FDRA field of the DCI can be used.

[0349] The terminal uses the N field in the FDRA field of the DCI as before in the UL slot. UL_hop RB applied based on MSB bits offset The value is judged and in the SBFD slot, another N in the FDRA field of the DCI UL_hop RB applied based on bits offset You can judge the value.

[0350] Method 4. An FDRA field for SBFD slots may be included in addition to the existing FDRA field in the DCI scheduling PUSCH.

[0351] The terminal applies RB for PUSCH transmission based on the existing FDRA field in the UL slot. start , RB size, and / or RB offset Determine the value and apply the RB for PUSCH transmission based on the FDRA field for the SBFD slot in the SBFD slot. start , RB size, and / or RB offset You can judge the value.

[0352] In this case, RB is based on the same 'frequencyHoppingOffsetLists' in UL slot and SBFD slot. offset The value can be determined. Or, by setting 'frequencyHoppingOffsetLists' for SBFD slots in addition to the existing 'frequencyHoppingOffsetLists' in 'PUSCH-Config', the existing 'frequencyHoppingOffsetLists' can be applied in HD slots to determine the RB offset The value is judged and additional 'frequencyHoppingOffsetLists' are applied in the SBFD slot to RB offset You can judge the value.

[0353] Additionally, considering the complexity and difficulty of configuring PUSCH transmission PRB resources in SBFD slots considering frequency hopping, frequency hopping can be disabled in SBFD environments. UEs may determine that frequency hopping is not always applied in SBFD environments.

[0354] B. Method for determining transmission frequency resources by slot during PUSCH repetition

[0355] When PUSCH is transmitted repeatedly across multiple slot resources, it may be transmitted across both HD slots and SBFD slots. In such cases, the UE needs to determine which slot type will be used to determine the PUSCH frequency resources.

[0356] In this disclosure, a method for determining a slot type (HD slot or SBFD slot) that serves as a criterion for determining PUSCH transmission frequency resources for each PUSCH transmission slot is proposed.

[0357] The contents of the present disclosure can also be applied to a case where PUSCH is transmitted without repetition (i.e., when the number of repetitions is 1).

[0358] Alt 1. For each slot resource where PUSCH is repeatedly transmitted, in HD slots, the location of the frequency resource where PUSCH is transmitted can be determined and applied based on the HD slot, and in SBFD slots, the location of the frequency resource where PUSCH is transmitted can be determined and applied based on the SBFD slot. In this case, the frequency resources that constitute PUSCH transmission can vary depending on the slot where PUSCH is repeatedly transmitted for the same PUSCH.

[0359] Alt 2. If the slot resources through which PUSCH is repeatedly transmitted include at least one SBFD slot, the location of the frequency resource through which PUSCH is transmitted can be determined and applied based on the SBFD slot among all PUSCH transmission slot resources.

[0360] Alt 3. When a cell operates in SBFD mode, or when a slot operating in SBFD exists in the cell, the location of the frequency resource where the PUSCH is transmitted can be determined and applied based on the SBFD slot among the slot resources where the PUSCH is repeatedly transmitted. This method can be applied even if the slot resources where the PUSCH is repeatedly transmitted do not include the SBFD slot.

[0361] Alt 4. For slot resources where PUSCH is repeatedly transmitted, the location of the frequency resource where PUSCH is transmitted can be determined and applied based on the same slot type among the HD slot and SBFD slot. At this time, information on the slot type for determining the frequency resource of PUSCH among the HD slot and SBFD slot can be dynamically indicated by the base station via RRC / DCI, etc. More specifically, the following method can be applied.

[0362] Alt 4-1. The slot type of the slot in which the PUSCH is transmitted can be indicated through an explicit field in the DCI.

[0363] Alt 4-2. The slot type of the slot in which the PUSCH is transmitted can be indicated through the TDRA field in the DCI. For example, a new column can be added to the TDRA field to set the slot type of the slot in which the PUSCH is transmitted.

[0364] Alt 4-3. The slot type of the slot in which the PUSCH is transmitted can be indicated through the FDRA (frequency domain resource allocation) field in the DCI. For example, a specific bit in the FDRA field can be used to indicate the slot type of the slot in which the PUSCH is transmitted.

[0365] C. Starting PRB location for frequency hopping.

[0366] When a terminal performs UL transmission in a time resource where the cell operates in SBFD, the terminal can perform UL transmission through a frequency resource included in a UL subband among the resources within the UL BWP.

[0367] When a terminal performs UL transmission, some or all of the frequency resources within the UL BWP may not be included in the UL subband in the time resources in which the cell operates in SBFD. In this case, the terminal may not be able to perform UL transmission in the same way as in non-SBFD time resources. In particular, if the frequency resources of the UL signal / channel transmitted by the terminal include frequency resources other than the UL subband, the terminal may not be able to perform UL transmission in the SBFD time resources as in the non-SBFD time resources.

[0368] This disclosure proposes a method for determining frequency resources for transmitting a PUSCH when a UE applies frequency hopping for PUSCH transmission when a cell performs SBFD operation. The following description is based on PUSCH transmission using frequency hopping, but can also be applied to PUCCH transmission using frequency hopping.

[0369] The transmission frequency resource of the PUSCH can be periodically changed using multiple (e.g., two) frequency resources starting from the first time resource allocated for PUSCH transmission. The PUSCH can be transmitted by applying hopping, which changes the frequency resource of the PUSCH transmission from the first time resource to the nth period in the nth period. Depending on the frequency hopping method, the cycle for performing each hopping can vary, such as multiple symbols, one slot, one repetition, or multiple repetitions.

[0370] At this time, the location of the first RB among the RB resources in which the terminal performs PUSCH transmission in the nth hopping (hop) may be as follows.

[0371] [Formula 6]

[0372]

[0373] The above equation 6 can be used to obtain the first RB (first RB) in a non-SBFD symbol (e.g., HD symbol).

[0374] In Equation 6, depending on the frequency hopping method, n can mean:

[0375] 1) In case of PUSCH repetition type A and TBoMS (TB processing over multiple slots) transmission,

[0376] When applying intra-slot frequency hopping, n can mean 0 and 1 for the first hop transmission and the second hop transmission within the slot, respectively.

[0377] When inter-slot frequency hopping is applied and DMRS bundling is not performed (e.g., 'PUSCH-DMRS-Bundling' is not enabled), n is the index of each slot in which PUSCH is transmitted (i.e., n s μ ) can mean n s μ is the current slot number within the system radio frame.

[0378] When applying inter-slot frequency hopping and performing DMRS bundling (e.g., when 'PUSCH-DMRS-Bundling' is enabled), n is can mean. In this case, n s μ is the current slot number within the system radio frame, and N FH is the value of the upper layer parameter 'PUSCH-Frequencyhopping-Interval'.

[0379] 2) For PUSCH repetition type B transmission, n may mean the index of the nominal repetition.

[0380] Meanwhile, the frequency resources available for performing PUSCH transmission may be different depending on whether the UE performs PUSCH transmission via SBFD symbol(s) or non-SBFD symbol(s). This is because the location and amount of frequency resources available for the UE for UL transmission may differ depending on the SBFD symbol and non-SBFD symbol.

[0381] For example, in a non-SBFD symbol, a terminal can use resources within the UL BWP within the frequency resources constituting the cell for UL transmission. On the other hand, in an SBFD symbol, a terminal can use resources included in both the UL BWP and the UL subband within the frequency resources constituting the cell for UL transmission.

[0382] Figure 17 illustrates various inclusion relationships between UL BWP and UL subbands in the frequency domain.

[0383] Referring to FIG. 17, the UL BWP and the UL subband may be composed of consecutive resource blocks in the frequency domain, and the consecutive resource blocks may be indexed in ascending order. For example, among the resource blocks constituting the UL BWP, the resource block with the lowest frequency may be assigned the lowest index, and the resource block with the highest frequency may be assigned the highest index.

[0384] Since UL subbands are set within the system band (or carrier), there is no guarantee that UL subbands will always be entirely contained within the UL BWP.

[0385] Among the indices of resource units (e.g., resource blocks) that constitute a UL BWP, the lowest index may be conveniently referred to as a first index, and among the indices of resource units (e.g., resource blocks) that constitute a UL subband, the lowest index may be conveniently referred to as a second index.

[0386] Among the indices of resource units (e.g., resource blocks) that constitute a UL BWP, the highest index may be conveniently referred to as the third index, and among the indices of resource units (e.g., resource blocks) that constitute a UL subband, the highest index may be conveniently referred to as the fourth index.

[0387] Figure 17 (a) illustrates a case where a UL subband is included within a UL BWP. In terms of resource index, the second index is greater than or equal to the first index, and the fourth index is less than or equal to the third index.

[0388] Figure 17 (b) illustrates a case where the UL BWP and the UL subband partially overlap. In terms of resource index, this can be said to be a case where the second index is greater than the first index, and the fourth index is greater than the third index.

[0389] Figure 17(c) illustrates another case where the UL BWP and the UL subband partially overlap. In terms of resource index, this can be said to be a case where the second index is less than or equal to the first index, and the fourth index is less than the third index.

[0390] Figure 17 (d) illustrates a case where a UL BWP is included within a UL subband. In terms of resource index, this can be said to be a case where the second index is less than or equal to the first index and the fourth index is greater than the third index.

[0391] Meanwhile, when a terminal performs PUSCH transmission with frequency hopping applied in the same manner as in Equation 2 above, frequency resources that cannot perform UL transmission may be included in RB resources that perform PUSCH transmission.

[0392] For example, the first RB position for PUSCH transmission of the nth hop (i.e., RB start If (n)) is included in the frequency resources within the UL BWP but not within the UL subband, a result may occur in which the frequency resources performing PUSCH transmission in the SBFD symbol overlap with the frequency resources that cannot perform UL transmission.

[0393] Therefore, in order for both PUSCH transmissions at the nth hop and the n+1th hop within the SBFD symbol to be included in the frequency resources where the terminal can perform UL transmission, RB start and '(RB start +RB offset ) mod N size BWP' 'The location of all terminals must be included in the resources that can perform UL transmission in the SBFD symbol.

[0394] Below, the first RB position (i.e., RB) for PUSCH transmission is start(n)) is proposed as a method for a terminal to determine the first RB position for PUSCH transmission so that the SBFD symbol is included within the frequency resources that the terminal can use for UL transmission.

[0395] In the present disclosure, when a terminal transmits a PUSCH in an SBFD symbol, it may mean that symbol resources constituting one PUSCH transmission (PUSCH transmission opportunity) include at least one SBFD symbol. Alternatively, it may mean that all symbol resources constituting one PUSCH transmission (PUSCH transmission opportunity) are composed of SBFD symbols.

[0396] In the present disclosure, when a terminal transmits a PUSCH in a non-SBFD symbol, it may mean that all symbol resources constituting one PUSCH transmission (PUSCH transmission opportunity) are composed of non-SBFD symbols. Alternatively, it may mean that at least one non-SBFD symbol is included in the symbol resources constituting one PUSCH transmission (PUSCH transmission opportunity).

[0397] In the present disclosure, when a terminal performs PUSCH transmission by applying frequency hopping in an SBFD symbol, the position of the first RB of PUSCH transmission in the nth hopping (hop) can be determined as in the following equation 7 or equation 8.

[0398] [Formula 7]

[0399]

[0400] [Formula 8]

[0401]

[0402] RB in the above equations 7 and 8 offset,SBFD can be as follows:

[0403] RB offset,SBFD The terminal is RB in the SBFD symbol startIt refers to the offset value of RB applied to determine the position of (n). RB offset,SBFD RB in SBFD symbol start (n) can be used to prevent the location from being included in the resources of the UL subband.

[0404] At this time, RB offset,SBFD It may mean the offset value of 'the lowest RB position among the overlapping RB resources of the frequency resources constituting the UL subband and the frequency resources constituting the UL BWP' compared to 'the position of the lowest RB constituting the UL BWP'.

[0405] To put it differently, this can mean the PRB index of 'the lowest RB position among the overlapping RB resources of the frequency resources constituting the UL subband and the frequency resources constituting the UL BWP'.

[0406] To put it concretely, it could be as follows:

[0407] If the lowest RB position of the UL subband is greater than the lowest RB position of the UL BWP (i.e., the CRB index of the lowest RB of the UL subband is greater than the CRB index of the lowest RB of the UL BWP), RB offset,SBFD may mean the offset value of the ‘lowest RB position constituting the UL subband’ compared to the ‘lowest RB position constituting the UL BWP’.

[0408] To put it another way, RB offset,SBFD may mean the offset value of the 'CRB index of the lowest RB position constituting the UL subband' compared to the 'CRB index of the lowest RB position constituting the UL BWP'. That is, it may mean 'CRB index of the lowest RB position constituting the UL subband' - 'CRB index of the lowest RB position constituting the UL BWP'.

[0409] Or to put it another way, RBoffset,SBFD may mean the PRB index corresponding to the ‘lowest RB position constituting the UL subband’.

[0410] If the lowest RB position of the UL subband is less than or equal to the lowest RB position of the UL BWP (i.e., the CRB index of the lowest RB of the UL subband is less than or equal to the CRB index of the lowest RB of the UL BWP), RB offset,SBFD can be equal to 0.

[0411] The terminal uses the frequency resource information that constitutes the UL BWP and / or UL subband as described above to configure the RB offset,SBFD You can judge the value.

[0412] Additionally / Independently RB offset,SBFD The value may be a value indicated to the terminal by the network through RRC / DCI signaling, etc. For this purpose, the terminal receives RB from the network. offset,SBFD The value can be instructed. If no such instruction is given, the terminal will send the RB offset,SBFD The value of can be determined as above. Or, if there is no such instruction, the terminal may use RB offset,SBFD The value of can be judged as 0.

[0413] Additionally, the terminal transmits PUSCH in a non-SBFD symbol or does not transmit PUSCH in an SBFD symbol, and these RBs offset,SBFD The value of can be judged as 0.

[0414] In the above equations 7 and 8, N BWP,SBFD size can be as follows:

[0415] N BWP,SBFD size When the terminal performs PUSCH transmission by applying frequency hopping, RB in odd hops startTo prevent the location of (n) from being included in the resources of the UL subband, the terminal may use RB in the SBFD symbol. start (n) refers to a parameter applied to limit resources within the UL subband.

[0416] At this time, N BWP,SBFD size In the SBFD symbol, it may mean the size of the RB resource that overlaps between the frequency resources that constitute the UL BWP and the frequency resources that constitute the UL subband.

[0417] To put it concretely, it could be as follows:

[0418] If the lowest RB position of the UL subband is greater than the lowest RB position of the UL BWP (i.e., the CRB index of the lowest RB of the UL subband is greater than the CRB index of the lowest RB of the UL BWP), and if the highest RB position of the UL subband is greater than the highest RB position of the UL BWP (i.e., the CRB index of the highest RB of the UL subband is greater than the CRB index of the highest RB of the UL BWP), N BWP,SBFD size may mean the number of RBs from the ‘lowest RB position constituting the UL subband’ to the ‘highest RB position constituting the UL BWP’.

[0419] To put it another way, N BWP,SBFD size It can mean a value that adds 1 to the offset value of the 'CRB index of the highest RB position constituting the UL BWP' compared to the 'CRB index of the lowest RB constituting the UL subband'. In other words, it can mean 'CRB index of the highest RB position constituting the UL BWP' - 'CRB index of the lowest RB constituting the UL subband' + 1.

[0420] Or to put it another way, N BWP,SBFD sizeIt can mean a value that adds 1 to the offset value of the 'PRB index of the highest RB position constituting the UL BWP' compared to the 'PRB index corresponding to the lowest RB constituting the UL subband'. In other words, it can mean 'PRB index of the highest RB position constituting the UL BWP' - 'PRB index of the lowest RB constituting the UL subband' + 1.

[0421] If the highest RB position of the UL subband is smaller than the highest RB position of the UL BWP (i.e., the CRB index of the highest RB of the UL subband is smaller than the CRB index of the highest RB of the UL BWP), N BWP,SBFD size may mean the RB size of the frequency resources constituting the UL subband.

[0422] To put it another way, N BWP,SBFD size may mean the number of RBs from the 'lowest RB position constituting the UL subband' to the 'highest RB position constituting the UL subband'. That is, it may mean 'CRB index of the highest RB position constituting the UL subband' - 'CRB index of the lowest RB constituting the UL subband' + 1.

[0423] Or to put it another way, N BWP,SBFD size It can mean a value that adds 1 to the offset value of the 'PRB index of the highest RB position constituting the UL subband' compared to the 'PRB index corresponding to the lowest RB constituting the UL subband'. In other words, it can mean 'PRB index of the highest RB position constituting the UL subband' - 'PRB index of the lowest RB constituting the UL subband' + 1.

[0424] If the lowest RB position of the UL subband is less than or equal to the lowest RB position of the UL BWP (i.e., the CRB index of the lowest RB of the UL subband is less than or equal to the CRB index of the lowest RB of the UL BWP), and if the highest RB position of the UL subband is greater than the highest RB position of the UL BWP (i.e., the CRB index of the highest RB of the UL subband is greater than the CRB index of the highest RB of the UL BWP), N BWP,SBFD size is N BWP size It can be like this.

[0425] If the highest RB position of the UL subband is smaller than the highest RB position of the UL BWP (i.e., the CRB index of the highest RB of the UL subband is smaller than the CRB index of the highest RB of the UL BWP), N BWP,SBFD size may mean the number of RBs from the ‘lowest RB position constituting the UL BWP’ to the ‘highest RB position constituting the UL subband’.

[0426] To put it another way, N BWP,SBFD size It can mean a value that adds 1 to the offset value of the 'CRB index of the highest RB position constituting the UL subband' compared to the 'CRB index of the lowest RB constituting the UL BWP'. In other words, it can mean 'CRB index of the highest RB position constituting the UL subband' - 'CRB index of the lowest RB constituting the UL BWP' + 1.

[0427] Or to put it another way, N BWP,SBFD sizeIt can mean a value that adds 1 to the offset value of the 'PRB index of the highest RB position constituting the UL subband' compared to the 'PRB index corresponding to the lowest RB constituting the UL BWP'. In other words, it can mean 'PRB index of the highest RB position constituting the UL subband' - 'PRB index of the lowest RB constituting the UL BWP' + 1.

[0428] At this time, the terminal transmits PUSCH in a non-SBFD symbol or does not transmit PUSCH in an SBFD symbol, and these N BWP,SBFD size The value of N BWP size can be judged by

[0429] Additionally, the above suggestions apply, but RB offset The value of may be set / judged differently when the terminal transmits PUSCH in an SBFD symbol and when the terminal transmits PUSCH in a non-SBFD symbol.

[0430] The terminal transmits RB in SBFD and non-SBFD symbols. offset The method for determining the value differently may be the same as the content of the above section 'A. Method for determining PUSCH transmission frequency resources according to transmission slot type'.

[0431] At this time, an SBFD slot may mean a slot in which at least one symbol among the symbol resources through which a PUSCH is transmitted within the slot is an SBFD symbol. In addition, a non-SBFD slot, UL slot, or HD slot may mean a slot in which all symbol resources through which a PUSCH is transmitted within the slot are composed of non-SBFD symbols.

[0432] Alternatively, an SBFD slot may mean a slot in which all symbol resources through which a PUSCH is transmitted within the slot are composed of SBFD symbols. In addition, a non-SBFD slot, UL slot, or HD slot may mean a slot in which at least one non-SBFD symbol is included among the symbol resources through which a PUSCH is transmitted within the slot.

[0433] Figure 18 illustrates an operation method of a terminal in a wireless communication system.

[0434] Referring to FIG. 18, a terminal determines a first resource block (RB) for uplink channel transmission with frequency hopping applied in a specific time resource, and determines the first RB differently depending on whether the specific time resource is a half duplex (HD) resource or a subband full duplex (SBFD) resource, and if the specific time resource is the SBFD resource, the first RB is: i) a first parameter (e.g., RB) indicating a lowest resource block among resource blocks overlapping between a first frequency resource constituting an uplink (UL) BWP (bandwidth part) and a second frequency resource constituting an uplink (UL) subband offset,SBFD ) and ii) a second parameter (e.g., N) indicating the size of the overlapping resource blocks BWP,SBFD size ) is determined based on (S181).

[0435] The terminal transmits the uplink channel through consecutive resource blocks in the frequency domain from the first RB (S182).

[0436] The above first RB is the RB of the above-mentioned formula 7 or formula 8. start (n) may mean. Depending on the embodiment, the first RB is RB of Equation 9 or Equation 10 described below. start (n) can mean.

[0437] The above SBFD resource may be, for example, an SBFD symbol / slot.

[0438] The value of the first parameter may vary depending on the location of the first frequency resource and the second frequency resource, that is, depending on which of the relative location relationships between the UL BWP (first frequency resource) and the UL subband (second frequency resource) illustrated in FIG. 17.

[0439] For example, if the second index, which is the lowest resource block index of the UL subband, is greater than the first index, which is the lowest resource block index of the UL BWP (i.e., in case of (a) or (b) of FIG. 17), the first parameter may indicate an offset between the second index and the first index.

[0440] If the second index, which is the lowest resource block index of the UL subband, is less than or equal to the first index, which is the lowest resource block index of the UL BWP (in case of (c) or (d) of FIG. 17), the first parameter may indicate a value of 0.

[0441] If the second index, which is the lowest resource block index of the uplink subband, is greater than the first index, which is the lowest resource block index of the uplink BWP, and if the fourth index, which is the highest resource block index of the uplink subband, is less than or equal to the third index, which is the highest resource block index of the uplink BWP (i.e., in a situation such as (a) of FIG. 17), the second parameter can indicate the number of resource blocks constituting the uplink subband.

[0442] If the second index, which is the lowest resource block index of the UL subband, is greater than the first index, which is the lowest resource block index of the UL BWP, and if the fourth index, which is the highest resource block index of the UL subband, is greater than the third index, which is the highest resource block index of the UL BWP (i.e., in a situation such as (b) of FIG. 17), the second parameter can indicate the number of resource blocks from the second index to the third index.

[0443] If the second index, which is the lowest resource block index of the uplink subband, is less than or equal to the first index, which is the lowest resource block index of the uplink BWP, and if the fourth index, which is the highest resource block index of the uplink subband, is less than or equal to the third index, which is the highest resource block index of the uplink BWP (i.e., in a situation such as (c) of FIG. 17), the second parameter can indicate the number of resource blocks from the first index to the fourth index.

[0444] If the second index, which is the lowest resource block index of the uplink subband, is less than or equal to the first index, which is the lowest resource block index of the uplink BWP, and if the fourth index, which is the highest resource block index of the uplink subband, is greater than the third index, which is the highest resource block index of the uplink BWP (i.e., in a situation such as (d) of FIG. 17), the second parameter can indicate the number of resource blocks constituting the uplink BWP.

[0445] In a non-SBFD symbol / slot, the first RB can be obtained by Equation 6 as in the prior art.

[0446] On the other hand, in the SBFD symbol / slot, the first RB can be obtained by Equation 7 or Equation 8 described above based on the first parameter and the second parameter. Depending on the embodiment, in the SBFD symbol / slot, the first RB can be obtained by Equation 9 or Equation 10 described below based on the first parameter and the second parameter.

[0447] The terminal can determine the first parameter using information indicating the frequency resources constituting the UL BWP and / or UL subband.

[0448] Alternatively, the first parameter may be indicated to the terminal by the network via RRC / DCI signaling, etc. In this case, if the terminal has not received / set the first parameter from the network, the terminal may implicitly determine the value of the first parameter using information indicating the frequency resources constituting the UL BWP and / or UL subband, or may determine the value of the first parameter to be a predetermined value (e.g., 0).

[0449] When the terminal transmits a PUSCH in a non-SBFD symbol / slot or does not transmit a PUSCH in an SBFD symbol / slot, the terminal may determine the value of the first parameter to be 0.

[0450] The terminal may determine the second parameter using information indicating the frequency resources constituting the UL BWP and / or UL subband. Alternatively, the second parameter may be indicated to the terminal by the network through RRC / DCI signaling, etc.

[0451] CG (Configured grant) PUSCH transmission can be of type 1 CG PUSCH and type 2 CG PUSCH.

[0452] For Type 1 CG PUSCH, various parameters (time frequency resource allocation, period, offset, start symbol, length, etc.) for PUSCH transmission can be set through higher level signaling (RRC). For Type 2 CG PUSCH, only some parameters, such as period and number of repetitions, can be set through higher level signaling (RRC), and the remaining parameters can be set through activation DCI.

[0453] 1) For a CG (configured grant) PUSCH configuration without repetitions, if the transmission occasions are across SBFD symbols and non-SBFD symbols where each transmission occasion has either all SBFD or all non-SBFD symbols (i.e. Configuration 2),

[0454] 2) PUSCH repetition type-A across SBFD symbols and non-SBFD symbols in different slots where each repetition has either all SBFD or all non-SBFD symbols (i.e. Configuration 2),

[0455] 3) for multi-PUSCH scheduled by a single DCI across SBFD symbols and non-SBFD symbols, where each PUSCH within a slot has either all SBFD or all non-SBFD symbols (i.e. Configuration 2), and / or

[0456] 4) For TBoMS across SBFD symbols and non-SBFD symbols in different slots, where each transmission within a slot has either all SBFD or all non-SBFD symbols (i.e. Configuration 2),

[0457] A single resource configuration / indication for non-SBFD symbols and RB offset(s) configuration / indication / determination for determining frequency resources for SBFD symbols may be provided. The number of PRBs is the same for PUSCH transmission in SBFD symbols and PUSCH transmission in non-SBFD symbols.

[0458] That is, in order to determine the transmission frequency resource of the PUSCH in the SBFD symbol in the PUSCH repetition, the frequency resource is indicated based on the non-SBFD symbol, and then the RB offset is applied thereto to determine the frequency resource in the SBFD symbol.

[0459] Meanwhile, for type 1 CG PUSCH using setting 2, frequency hopping (FH) offsets for SBFD symbols and non-SBFD symbols can be set separately.

[0460] A new RRC parameter can be introduced in 'rrc-ConfiguredUplinkGrant' of 'ConfiguredGrantConfig' to set the FH offset for SBFD symbols.

[0461] For PUSCH and Type 2 CG PUSCH scheduled by DCI, separate configuration of FH offset lists for SBFD symbols and non-SBFD symbols may be supported. A new RRC parameter may be introduced in 'PUSCH-Config' to configure the FH offset set for SBFD symbols.

[0462] The terminal can apply the FH offset / FH offset list according to the symbol type of the PUSCH transmissions.

[0463] If the FH offset / FH offset list is not provided for SBFD symbols, the terminal may disable FH for PUSCH transmission in SBFD symbols or apply the FH offset / FH offset list for non-SBFD symbols to SBFD symbols.

[0464] When performing PUSCH frequency hopping, according to the current standard, an FH offset list set as an RRC parameter is provided to determine frequency resources in the second hop. In the present disclosure, an FH offset list applied to an SBFD symbol can be set separately.

[0465] That is, when applying FH, instead of the existing equation 6 for determining the starting PRB, the equation below can be used.

[0466] [Formula 9]

[0467]

[0468] In Equation 9, if 'n mode 2 = 0', the RB indicated based on the non-SBFD symbol start In order to ensure that the SBFD symbol does not exceed the range of PRBs available for UL (i.e., a subset of UL BWP and UL subbands), the size of PRBs available for UL is N. BWP,SBFD size After performing modulo operation on RB offset,SBFD Adds .

[0469] In Equation 9, if 'n mode 2 = 1', RB applied for FH in SBFD symbol offset Add RB after that start +RB offset,SBFD In order to ensure that the SBFD symbol does not exceed the range of PRBs available for UL (i.e., a subset of UL BWP and UL subbands), the size of UL available PRBs, N BWP,SBFD size After performing the modulo operation on RB offset,SBFD Add more.

[0470] RB in Equation 9 offset,SBFD corresponds to the RB offset for determining the frequency resource in the SBFD symbol, and RB offset can correspond to an FH offset value determined from the FH offset list applied at FH time in the SBFD symbol.

[0471] Alternatively, when applying FH, instead of the existing equation 6 for determining the starting PRB, the equation below can be used.

[0472] [Formula 10]

[0473]

[0474] In Equation 10, RB in SBFD symbol startSince it is determined by giving the RB offset compared to the non-SBFD symbol, both the case of 'n mode 2 = 0' and 'n mode 2 = 1' are the existing RB start is RB start +RB offset,1 is replaced by

[0475] In Equation 10, if 'n mode 2 = 0', RB start +RB offset,1 In order to ensure that the SBFD symbol does not exceed the range of PRBs available for UL (i.e., a subset of UL BWP and UL subbands), the size of PRBs available for UL is N. BWP,SBFD size After performing modulo operation on RB offset,SBFD Adds .

[0476] In Equation 10, when 'n mode 2 = 1', RB applied for FH in SBFD symbol offset,2 Add RB after that start +RB offset,1 +RB offset,2 In order to ensure that the SBFD symbol does not exceed the range of PRBs available for UL (i.e., a subset of UL BWP and UL subbands), the size of PRBs available for UL is N. BWP,SBFD size After performing the modulo operation on RB offset,SBFD Adds .

[0477] RB in Equation 10 offset,1 and RB offset,SBFD corresponds to the RB offset for determining the frequency resource in the SBFD symbol, and RB offset,2 can correspond to an FH offset value determined from the FH offset list applied at FH time in the SBFD symbol.

[0478] Alternatively, when applying FH, instead of the existing equation 6 for determining the starting PRB, the equation below can be used.

[0479] [Formula 11]

[0480]

[0481] In Equation 11, when 'n mode 2 = 0', RB in SBFD symbol start is judged by giving the RB offset compared to the non-SBFD symbol, so the existing RB start is RB start +RB offset,1 can be replaced by RB start +RB offset,1 In order to ensure that the SBFD symbol does not exceed the range of PRBs available for UL (i.e., a subset of UL BWP and UL subbands), the size of PRBs available for UL is N. BWP,SBFD size After performing the modulo operation on RB offset,SBFD Adds .

[0482] In Equation 11, when 'n mode 2 = 1', RB applied for FH in SBFD symbol offset,2 Add RB after that start +RB offset,2 In order to ensure that the SBFD symbol does not exceed the range of PRBs available for UL (i.e., a subset of UL BWP and UL subbands), the size of PRBs available for UL is N. BWP,SBFD size After performing the modulo operation on RB offset,SBFD Adds .

[0483] RB in Equation 11 offset,1 and RB offset,SBFD corresponds to the RB offset for determining the frequency resource in the SBFD symbol, and RB offset,2 can correspond to an FH offset value determined from the FH offset list applied at FH time in the SBFD symbol.

[0484] Alternatively, when applying FH, instead of the existing equation 6 for determining the starting PRB, the equation below can be used.

[0485] [Formula 12]

[0486]

[0487] In Equation 12, RB in SBFD symbol start Since it is determined by giving the RB offset compared to the non-SBFD symbol, both the case of 'n mode 2 = 0' and 'n mode 2 = 1' are the existing RB start is RB start +RB offset,1 is replaced by

[0488] In Equation 12, if 'n mode 2 = 0', RB start +RB offset,1 It can be assumed that the base station instructs the UL subband to be located.

[0489] In Equation 12, when 'n mode 2 = 1', RB applied for FH in SBFD symbol offset,2 Add . After that, RB start +RB offset,1 +RB offset,2 In order to ensure that the SBFD symbol does not exceed the range of PRBs available for UL (i.e., a subset of UL BWP and UL subbands), the size of PRBs available for UL is N. BWP,SBFD size After performing the modulo operation on RB offset,SBFD Adds .

[0490] In equation 12, RB offset,1 and RB offset,SBFD corresponds to the RB offset for determining the frequency resource in the SBFD symbol, and RB offset,2 can correspond to an FH offset value determined from the FH offset list applied at FH time in the SBFD symbol.

[0491] Alternatively, when applying FH, instead of the existing equation 6 for determining the starting PRB, the equation below can be used.

[0492] [Formula 13]

[0493]

[0494] In Equation 13, when 'n mode 2 = 0', RB in SBFD symbol start is judged by giving the RB offset compared to the non-SBFD symbol, so the existing RB start is RB start +RB offset,1 is replaced by RB start +RB offset,1 It can be assumed that the base station instructs the UL subband to be located.

[0495] In Equation 13, when 'n mode 2 = 1', RB applied for FH in SBFD symbol offset Add RB after that start +RB offset,SBFD In order to ensure that the SBFD symbol does not exceed the range of PRBs available for UL (i.e., a subset of UL BWP and UL subbands), the size of PRBs available for UL is N. BWP,SBFD size After performing the modulo operation on RB offset,SBFD Adds .

[0496] RB in Equation 13 offset,1 and RB offset,SBFD corresponds to the RB offset for determining the frequency resource in the SBFD symbol, and RB offset can correspond to an FH offset value determined from the FH offset list applied at FH time in the SBFD symbol.

[0497] According to the method of FIG. 18, the first RB is always included in the uplink subband. Therefore, even if the UL transmittable resources differ between SBFD and non-SBFD slots, PUSCH transmission can be performed based on frequency hopping within the UL transmittable resources in each slot. Consequently, PUSCH transmission efficiency can be increased and system throughput can be enhanced.

[0498] Figure 19 illustrates the signaling process between a base station and a terminal.

[0499] Referring to Figure 19, the base station provides HD setting information to the terminal (S191).

[0500] HD configuration information may include, for example, frequency resource information for UL BWP and UL subbands.

[0501] The base station provides FD configuration information to the terminal (S192). The FD configuration information can indicate FD time resources (e.g., SBFD slots, SBFD symbols).

[0502] The base station provides an uplink grant to the terminal (S193). The uplink grant may be in a DCI format that schedules the terminal's PUSCH transmission. The uplink grant may indicate whether the PUSCH frequency hopping is enabled.

[0503] The terminal determines the location of the first RB among the RB resources for performing PUSCH transmission at the nth hop according to the corresponding method depending on whether the specific time resource is an HD time resource or an FD time resource (S194).

[0504] That is, if a specific time resource is an HD time resource (e.g., a non-SBFD symbol / slot), the first RB can be obtained by the above equation 6, and if it is an FD time resource (e.g., an SBFD symbol / slot), the first RB can be obtained by the above equation 7 or equation 8 (or equation 9 or equation 10) based on the first parameter and the second parameter.

[0505] The terminal performs PUSCH transmission at the nth hop from the determined resource (S195).

[0506] Figure 20 illustrates a wireless device applicable to the present specification.

[0507] Referring to FIG. 20, 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).

[0508] 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) determines a first resource block (RB) for uplink channel transmission using frequency hopping in a specific time resource, and transmits the uplink channel through consecutive resource blocks in the frequency domain from the first RB. At this time, the first RB is determined differently depending on whether the specific time resource is an HD (half duplex) resource or an SBFD (subband full duplex) resource, and when the specific time resource is the SBFD resource, the first RB is determined based on i) a first parameter indicating a lowest resource block among resource blocks overlapping between a first frequency resource constituting an uplink BWP (bandwidth part) and a second frequency resource constituting an uplink subband, and ii) a second parameter indicating a size of the overlapping resource blocks.

[0509] 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) receives an uplink channel with frequency hopping applied in a specific time resource, wherein the uplink channel is received through consecutive resource blocks in the frequency domain from a first resource block (RB). Depending on whether the specific time resource is an HD (half duplex) resource or an SBFD (subband full duplex) resource, the first RB is determined differently, and when the specific time resource is the SBFD resource, the first RB is determined based on i) a first parameter indicating a lowest resource block among resource blocks overlapping between a first frequency resource constituting an uplink BWP (bandwidth part) and a second frequency resource constituting an uplink subband, and ii) a second parameter indicating a size of the overlapping resource blocks.

[0510] 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.

[0511] 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.

[0512] That is, at least one computer readable medium (CRM) including instructions based on being executed by at least one processor performs the steps of: determining a first resource block (RB) for uplink channel transmission with frequency hopping applied in a specific time resource; and transmitting the uplink channel through consecutive resource blocks in a frequency domain from the first RB. At this time, the first RB is determined differently depending on whether the specific time resource is an HD resource or an SBFD resource, and when the specific time resource is the SBFD resource, the first RB is determined based on i) a first parameter indicating a lowest resource block among resource blocks overlapping between a first frequency resource constituting an uplink BWP and a second frequency resource constituting an uplink subband, and ii) a second parameter indicating a size of the overlapping resource blocks.

[0513] 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.

[0514] 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.

[0515] 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.

[0516] Fig. 21 illustrates an example of a signal processing module structure. Here, signal processing may be performed in the processor (102, 202) of Fig. 20.

[0517] Referring to FIG. 21, 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).

[0518] 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.

[0519] 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.

[0520] 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.

[0521] 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.

[0522] 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.

[0523] Fig. 22 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. 20.

[0524] Referring to FIG. 22, 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).

[0525] 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).

[0526] 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.

[0527] The above complex modulation symbol can be mapped to one or more transmission layers by the layer mapper (403).

[0528] 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.

[0529] 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.

[0530] The resource block mapper (405) can assign complex modulation symbols to appropriate subcarriers and multiplex them according to the user.

[0531] 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.

[0532] 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.

[0533] FIG. 23 illustrates an example of a wireless communication device according to an implementation example of the present disclosure.

[0534] Referring to FIG. 23, 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.

[0535] The processor (2310) can implement the functions, procedures, and methods described in this specification. The processor (2310) of FIG. 23 may be the processor (102, 202) of FIG. 20.

[0536] 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. 23 may be the memory (104, 204) of FIG. 20.

[0537] 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.

[0538] 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. 23 may be the transceiver (106, 206) of FIG. 26.

[0539] Although not shown in FIG. 23, 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).

[0540] Fig. 23 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 Fig. 23. That is, some components, such as a keypad (2320), a Global Positioning System (GPS) chip (2360), a sensor (2365), and a SIM card (2325), may not be essential elements, and in this case, may not be included in the terminal.

[0541] Figure 24 shows an example of a processor (2000).

[0542] Referring to FIG. 24, 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. 17 to 19 from the terminal's perspective. The processor (2000) may be an example of the processors (102, 202) of FIG. 20.

[0543] Figure 25 shows an example of a processor (3000).

[0544] Referring to FIG. 25, 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. 19 to 22, for example, from the perspective of a base station or a network. The processor (3000) may be an example of the processors (102, 202) of FIG. 20.

[0545] Figure 26 illustrates another example of a wireless device.

[0546] According to FIG. 26, 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).

[0547] The difference between the example of the wireless device described in FIG. 20 and the example of the wireless device in FIG. 26 is that in FIG. 20, the processor (102, 202) and the memory (104, 204) are separated, whereas in the example of FIG. 26, the memory (104, 204) is included in the processor (102, 202). That is, the processor and the memory may constitute a single chipset.

[0548] Figure 27 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.

[0549] Referring to FIG. 27, the wireless device (100, 200) may correspond to the wireless device of FIG. 20 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. 20. 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).

[0550] 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.

[0551] In FIG. 27, 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.

[0552] 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).

[0553] Fig. 28 illustrates a communication system (1) applicable to this specification.

[0554] Referring to FIG. 28, 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.

[0555] 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).

[0556] 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.

[0557] 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.

[0558] 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 frequency ranges of the two types (FR1, FR2) can be as shown in Table 5 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).

[0559] [Table 5]

[0560]

[0561] 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 6 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).

[0562] [Table 6]

[0563]

[0564] 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 the method, The terminal determines a first resource block (RB) for uplink channel transmission with frequency hopping applied in a specific time resource, and The terminal transmits the uplink channel through consecutive resource blocks in the frequency domain from the first RB, Depending on whether the specific time resource is a HD (half duplex) resource or a SBFD (subband full duplex) resource, the first RB is determined differently. A method characterized in that, when the specific time resource is the SBFD resource, the first RB is determined based on i) a first parameter indicating a lowest resource block among resource blocks overlapping between a first frequency resource constituting an uplink BWP (bandwidth part) and a second frequency resource constituting an uplink subband, and ii) a second parameter indicating a size of the overlapping resource blocks.

2. A method according to claim 1, characterized in that the first RB is always included in the uplink subband.

3. A method according to claim 1, characterized in that the SBFD resource is an SBFD symbol.

4. A method according to claim 1, characterized in that the value of the first parameter changes depending on the location of the first frequency resource and the second frequency resource.

5. In the first paragraph, if the second index of the lowest resource block of the uplink subband is greater than the first index of the lowest resource block of the uplink BWP, A method characterized in that the first parameter indicates an offset between the second index and the first index.

6. In the first paragraph, if the second index of the lowest resource block of the uplink subband is less than or equal to the first index of the lowest resource block of the uplink BWP, A method characterized in that the first parameter indicates a value of 0.

7. In the first paragraph, if the second index of the lowest resource block of the uplink subband is greater than the first index of the lowest resource block of the uplink BWP, If the fourth index of the highest resource block of the above uplink subband is greater than the third index of the highest resource block of the above uplink BWP, A method characterized in that the second parameter indicates the number of resource blocks from the second index to the third index.

8. In the first paragraph, if the second index of the lowest resource block of the uplink subband is greater than the first index of the lowest resource block of the uplink BWP, If the fourth index of the highest resource block of the above uplink subband is less than or equal to the third index of the highest resource block of the above uplink BWP, A method characterized in that the second parameter indicates the number of resource blocks constituting the uplink subband.

9. In the first paragraph, if the second index of the lowest resource block of the uplink subband is less than or equal to the first index of the lowest resource block of the uplink BWP, If the fourth index of the highest resource block of the above uplink subband is greater than the third index of the highest resource block of the above uplink BWP, A method characterized in that the second parameter indicates the number of resource blocks constituting the uplink BWP.

10. In the first paragraph, if the second index of the lowest resource block of the uplink subband is less than or equal to the first index of the lowest resource block of the uplink BWP, If the fourth index of the highest resource block of the above uplink subband is less than or equal to the third index of the highest resource block of the above uplink BWP, A method characterized in that the second parameter indicates the number of resource blocks from the first index to the fourth index.

11. The terminal is, At least one transceiver; At least one memory; and At least one processor operably coupled with said at least one memory and said at least one transceiver, wherein said at least one memory comprises instructions that are executed by said at least one processor to perform operations, The above actions are, In a specific time resource, a first resource block (RB) for uplink channel transmission with frequency hopping applied is determined, and Transmitting the uplink channel through consecutive resource blocks in the frequency domain from the first RB, Depending on whether the specific time resource is a HD (half duplex) resource or a SBFD (subband full duplex) resource, the first RB is determined differently. A terminal characterized in that, when the specific time resource is the SBFD resource, the first RB is determined based on i) a first parameter indicating a lowest resource block among resource blocks overlapping between a first frequency resource constituting an uplink BWP (bandwidth part) and a second frequency resource constituting an uplink subband, and ii) a second parameter indicating a size of the overlapping resource blocks.

12. A terminal according to claim 11, characterized in that the first RB is always included in the uplink subband.

13. A terminal according to claim 11, characterized in that the SBFD resource is an SBFD symbol.

14. A terminal characterized in that the value of the first parameter changes according to the location of the first frequency resource and the second frequency resource in the 11th paragraph.

15. In the 11th paragraph, if the second index of the lowest resource block of the uplink subband is greater than the first index of the lowest resource block of the uplink BWP, A terminal characterized in that the first parameter indicates an offset between the second index and the first index.

16. In the 11th paragraph, if the second index of the lowest resource block of the uplink subband is less than or equal to the first index of the lowest resource block of the uplink BWP, A terminal characterized in that the first parameter indicates a value of 0.

17. In the 11th paragraph, if the second index of the lowest resource block of the uplink subband is greater than the first index of the lowest resource block of the uplink BWP, If the fourth index of the highest resource block of the above uplink subband is greater than the third index of the highest resource block of the above uplink BWP, A terminal characterized in that the second parameter indicates the number of resource blocks from the second index to the third index.

18. In the 11th paragraph, if the second index of the lowest resource block of the uplink subband is greater than the first index of the lowest resource block of the uplink BWP, If the fourth index of the highest resource block of the above uplink subband is less than or equal to the third index of the highest resource block of the above uplink BWP, A terminal characterized in that the second parameter indicates the number of resource blocks constituting the uplink subband.

19. In the 11th paragraph, if the second index of the lowest resource block of the uplink subband is less than or equal to the first index of the lowest resource block of the uplink BWP, If the fourth index of the highest resource block of the above uplink subband is greater than the third index of the highest resource block of the above uplink BWP, A terminal characterized in that the second parameter indicates the number of resource blocks constituting the uplink BWP.

20. In the 11th paragraph, if the second index of the lowest resource block of the uplink subband is less than or equal to the first index of the lowest resource block of the uplink BWP, If the fourth index of the highest resource block of the above uplink subband is less than or equal to the third index of the highest resource block of the above uplink BWP, A terminal characterized in that the second parameter indicates the number of resource blocks from the first index to the fourth index.

21. The device, At least one memory; and At least one processor operably coupled to at least one memory, wherein said at least one memory comprises instructions that are executed by said at least one processor to perform operations, The above actions are, In a specific time resource, a first resource block (RB) for uplink channel transmission with frequency hopping applied is determined, and Transmitting the uplink channel through consecutive resource blocks in the frequency domain from the first RB, Depending on whether the specific time resource is a HD (half duplex) resource or a SBFD (subband full duplex) resource, the first RB is determined differently. A device characterized in that, when the specific time resource is the SBFD resource, the first RB is determined based on i) a first parameter indicating a lowest resource block among resource blocks overlapping between a first frequency resource constituting an uplink BWP (bandwidth part) and a second frequency resource constituting an uplink subband, and ii) a second parameter indicating a size of the overlapping resource blocks.

22. In a computer readable medium (CRM), A step of determining a first resource block (RB) for uplink channel transmission with frequency hopping applied in a specific time resource, and A step of transmitting the uplink channel through consecutive resource blocks in the frequency domain from the first RB is performed, Depending on whether the specific time resource is a HD (half duplex) resource or a SBFD (subband full duplex) resource, the first RB is determined differently. A CRM characterized in that, when the specific time resource is the SBFD resource, the first RB is determined based on i) a first parameter indicating a lowest resource block among resource blocks overlapping between a first frequency resource constituting an uplink BWP (bandwidth part) and a second frequency resource constituting an uplink subband, and ii) a second parameter indicating a size of the overlapping resource blocks.

23. In the method, The base station receives an uplink channel with frequency hopping applied at a specific time resource, The above uplink channel is received through consecutive resource blocks in the frequency domain from the first resource block (RB), Depending on whether the above specific time resource is a HD (half duplex) resource or a SBFD (subband full duplex) resource, the first RB is determined differently. A method characterized in that, when the specific time resource is the SBFD resource, the first RB is determined based on i) a first parameter indicating a lowest resource block among resource blocks overlapping between a first frequency resource constituting an uplink BWP (bandwidth part) and a second frequency resource constituting an uplink subband, and ii) a second parameter indicating a size of the overlapping resource blocks.

24. The base station, At least one transceiver; At least one memory; and At least one processor operably coupled with said at least one memory and said at least one transceiver, wherein said at least one memory comprises instructions that are executed by said at least one processor to perform operations, The above actions are, In a specific time resource, an uplink channel with frequency hopping is received, The above uplink channel is received through consecutive resource blocks in the frequency domain from the first resource block (RB), Depending on whether the above specific time resource is a HD (half duplex) resource or a SBFD (subband full duplex) resource, the first RB is determined differently. A base station characterized in that, when the specific time resource is the SBFD resource, the first RB is determined based on i) a first parameter indicating a lowest resource block among resource blocks overlapping between a first frequency resource constituting an uplink BWP (bandwidth part) and a second frequency resource constituting an uplink subband, and ii) a second parameter indicating a size of the overlapping resource blocks.

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