Method for performing communication in wireless communication system and apparatus therefor

Abstract

According to various embodiments, a method for performing communication in a wireless communication system and an apparatus therefor are disclosed. Disclosed are: a method in which configuration information for configuring a first time resource associated with sub-band full duplex (SBFD) is received, and transmission power for an uplink signal is determined on the basis of a set of power control parameters related to the uplink signal; and an apparatus therefor.

Description

Method for performing communication in a wireless communication system and device therefor

[0001] This relates to a method for a terminal and a base station to perform communication in a wireless communication system and a device therefor.

[0002] Wireless communication systems are multiple access systems that support communication with multiple users by sharing available system resources (e.g., bandwidth, transmission power, etc.). Examples of multiple access systems include code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA), and multi-carrier frequency division multiple access (MC-FDMA).

[0003] As more and more communication devices demand greater communication capacity, the need for improved mobile broadband communication compared to existing radio access technology (RAT) is emerging. Furthermore, massive Machine Type Communications (MTC), which connects numerous devices and objects to provide various services anytime, anywhere, is also a key issue to be considered in next-generation communication. Furthermore, communication system design that considers reliability and latency-sensitive services / terminals is being discussed. The introduction of next-generation radio access technologies that take into account enhanced mobile broadband communication, massive MTC, and URLLC (Ultra-Reliable and Low Latency Communication) is being discussed. For convenience, these technologies are referred to as new RAT or NR in the present invention.

[0004] The technical challenge to be achieved is to provide a method for a terminal to perform uplink signal transmission operation more accurately and efficiently.

[0005] The technical challenges are not limited to the technical challenges mentioned above, and other technical challenges not mentioned will be clearly understood by those skilled in the art to which the present invention pertains from the description below.

[0006] A method by a UE (User Equipment) according to one aspect includes the steps of: receiving configuration information for setting a first time resource related to sub-band full duplex (SBFD); and determining a transmission power for an uplink signal based on a set of power control parameters related to the uplink signal; wherein the set of power control parameters can be divided into a first control parameter set for the first time resource and a second control parameter set for a second time resource not related to the SBFD.

[0007] Alternatively, based on the uplink signal being a signal for the first time resource, the transmission power of the uplink signal is determined based on the first control parameter set, and based on the uplink signal being a signal for the second time resource, the transmission power of the uplink signal is determined based on the second control parameter set.

[0008] Alternatively, the power control parameter set is characterized in that it is divided into the first control parameter set and the second control parameter set for parameters related to path loss.

[0009] Alternatively, the power control parameter set is characterized in that it is divided into the first power control parameter set and the second control parameter set with respect to parameters related to determination of nominal power.

[0010] Alternatively, the parameters related to the nominal power and decision are characterized by at least one of p0-NominalWithGrant, p0-nominal, p0-NominalWithGrant, and p0-NominalWithoutGrant.

[0011] Alternatively, the power control parameter set is characterized in that it is divided into the first control parameter set and the second control parameter set for the OLPC (Open Loop Power Control) parameter index.

[0012] Alternatively, the first control parameter set is characterized in that it indicates the OLPC parameter index for each type of the uplink signal.

[0013] Alternatively, the method further comprises receiving DCI (downlink control information) including a TPC (transmit power control) command from a base station, wherein based on the DCI being received in the first time resource, the TPC command is applied to determine a transmission power of an uplink signal for the first time resource, and based on the DCI being received in the second time resource, the TPC command is applied to determine a transmission power of an uplink signal for the second time resource.

[0014] Alternatively, the setting information is characterized in that it includes the first control parameter set and is received through SIB1 (system information block1).

[0015] Alternatively, the uplink signal is characterized in that it is repeatedly transmitted through the first time resource and the second time resource.

[0016] According to another aspect, a non-transitory computer-readable storage medium having recorded thereon instructions for performing the method by the UE described above may be provided.

[0017] According to another aspect, a UE performing the above-described method may be provided.

[0018] According to another aspect, a processing device may be provided for controlling a UE performing the above-described method.

[0019] A method by a base station according to another aspect includes the steps of: transmitting configuration information for setting a first time resource related to sub-band full duplex (SBFD); transmitting information on a set of power control parameters for controlling power of an uplink signal; and receiving the uplink signal; wherein the set of power control parameters can be divided into a first control parameter set for the first time resource and a second control parameter set for a second time resource not related to the SBFD.

[0020] According to another aspect, a base station performing the above-described method may be provided.

[0021] Various embodiments enable a terminal to perform an uplink signal transmission operation more accurately and efficiently.

[0022] The effects that can be obtained in various embodiments are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art to which the present invention pertains from the description below.

[0023] The drawings attached to this specification are intended to provide an understanding of the present invention, illustrate various embodiments of the present invention, and together with the description of the specification serve to explain the principles of the present invention.

[0024] Figure 1 shows the structure of an LTE system.

[0025] Figure 2 shows the structure of the NR system.

[0026] Figure 3 shows the structure of a radio frame of NR.

[0027] Figure 4 shows the slot structure of an NR frame.

[0028] FIG. 5 is a diagram for explaining physical channels that can be used in various embodiments and a signal transmission method using the same.

[0029] Figure 6 illustrates a process in which a terminal transmits ACK / NACK via PUSCH.

[0030] Figure 7 shows an example of a CSI-related procedure.

[0031] Figure 8 is a diagram for explaining parameters that control the uplink transmission power of the UE.

[0032] Figures 9 and 10 are drawings for explaining a method of performing full duplex operation in an NR system.

[0033] FIG. 11 is a diagram for explaining a method for a UE to determine the transmission power of an uplink signal.

[0034] FIG. 12 is a diagram for explaining a method for a base station to set a set of power control parameters for controlling the transmission power of an uplink signal.

[0035] Figure 13 illustrates a communication system applied to the present invention.

[0036] Figure 14 illustrates a wireless device applicable to the present invention.

[0037] Fig. 15 shows another example of a wireless device applied to the present invention.

[0038] A wireless communication system is a multiple access system that supports communication with multiple users by sharing available system resources (e.g., bandwidth, transmission power, etc.). Examples of multiple access systems include code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA), and multi-carrier frequency division multiple access (MC-FDMA).

[0039] Sidelink refers to a communication method that establishes a direct link between user equipment (UE), allowing voice or data to be exchanged directly between terminals without going through a base station (BS). Sidelink is being considered as a solution to address the burden on base stations due to rapidly increasing data traffic.

[0040] V2X (vehicle-to-everything) refers to a communication technology that exchanges information with other vehicles, pedestrians, and infrastructure-based objects through wired / wireless communication. V2X can be divided into four types: V2V (vehicle-to-vehicle), V2I (vehicle-to-infrastructure), V2N (vehicle-to-network), and V2P (vehicle-to-pedestrian). V2X communication can be provided through the PC5 interface and / or Uu interface.

[0041] Meanwhile, as more and more communication devices demand greater communication capacity, the need for improved mobile broadband communication compared to existing radio access technology (RAT) is emerging. Accordingly, communication systems that consider services or terminals sensitive to reliability and latency are being discussed. Next-generation wireless access technologies that consider improved mobile broadband communication, massive MTC, and URLLC (Ultra-Reliable and Low Latency Communication) can be called new radio access technology (RAT) or new radio (NR). NR can also support V2X (vehicle-to-everything) communication.

[0042] The following technologies can be used in various wireless communication systems, such as CDMA (code division multiple access), FDMA (frequency division multiple access), TDMA (time division multiple access), OFDMA (orthogonal frequency division multiple access), and SC-FDMA (single carrier frequency division multiple access). CDMA can be implemented with wireless technologies such as UTRA (universal terrestrial radio access) or CDMA2000. TDMA can be implemented with wireless technologies such as GSM (global system for mobile communications) / GPRS (general packet radio service) / EDGE (enhanced data rates for GSM evolution). OFDMA can be implemented with wireless technologies such as IEEE (Institute of Electrical and Electronics Engineers) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, and E-UTRA (evolved UTRA). IEEE 802.16m is an evolution of IEEE 802.16e, providing backward compatibility with systems based on IEEE 802.16e. UTRA is part of UMTS (universal mobile telecommunications system). 3GPP (3rd generation partnership project) LTE (long term evolution) is a part of E-UMTS (evolved UMTS) that uses E-UTRA (evolved-UMTS terrestrial radio access), employing OFDMA in the downlink and SC-FDMA in the uplink.LTE-A (advanced) is an evolution of 3GPP LTE.

[0043] 5G NR, the successor to LTE-A, is a new clean-slate mobile communications system featuring high performance, low latency, and high availability. 5G NR can utilize all available spectrum resources, from low-frequency bands below 1 GHz, mid-frequency bands between 1 GHz and 10 GHz, and high-frequency (millimeter wave) bands above 24 GHz.

[0044] For clarity, the description will focus on LTE-A or 5G NR, but the technical ideas of the embodiment(s) are not limited thereto.

[0045] Figure 1 illustrates the architecture of an applicable LTE system. This may be referred to as an Evolved-UMTS Terrestrial Radio Access Network (E-UTRAN) or a Long Term Evolution (LTE) / LTE-A system.

[0046] Referring to FIG. 1, the E-UTRAN includes a base station (20; BS) that provides a control plane and a user plane to a terminal (10). The terminal (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, etc. The base station (20) refers to a fixed station that communicates with the terminal (10), and may be referred to by other terms such as an evolved-NodeB (eNB), a base transceiver system (BTS), an access point, etc.

[0047] 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.

[0048] 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.

[0049] 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 an information transfer service using a physical channel, 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.

[0050] Figure 2 shows the structure of the NR system.

[0051] Referring to FIG. 2, the NG-RAN may include a gNB and / or an eNB that provides user plane and control plane protocol termination to the UE. FIG. 7 illustrates a case where only a gNB is included. The gNB and eNB are connected to each other via an Xn interface. The gNB and eNB 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.

[0052] Figure 3 shows the structure of a radio frame of NR.

[0053] Referring to FIG. 3, radio frames can be used for uplink and downlink transmission in NR. A radio frame has a length of 10 ms and can be defined as two 5 ms half-frames (Half-Frames, HF). A half-frame can include five 1 ms sub-frames (Subframes, SF). A sub-frame can be divided into one or more slots, and the number of slots within a sub-frame can be determined by the Subcarrier Spacing (SCS). Each slot can include 12 or 14 OFDM (A) symbols depending on the cyclic prefix (CP).

[0054] When normal CP is used, each slot can contain 14 symbols. When extended CP is used, each slot can contain 12 symbols. Here, the symbols can include OFDM symbols (or CP-OFDM symbols), SC-FDMA (Single Carrier - FDMA) symbols (or DFT-s-OFDM (Discrete Fourier Transform-spread-OFDM) symbols).

[0055] Table 1 below shows the number of symbols per slot ((N)) depending on the SCS setting (u) when normal CP is used. slot symb ), number of slots per frame ((N frame,u slot ) and the number of slots per subframe ((N subframe,u slot ) is an example.

[0056] SCS (15*2 u )N slot symb N frame,u slot N subframe,u slot 15KHz (u=0)1410130KHz (u=1)1420260KHz (u=2)14404120KHz (u=3)14808240KHz (u=4)1416016

[0057] Table 2 illustrates the number of symbols per slot, the number of slots per frame, and the number of slots per subframe according to SCS when extended CP is used.

[0058] SCS (15*2 u )N slot symb N frame,u slot N subframe,u slot 60KHz (u=2)12404

[0059] In an NR system, OFDM(A) numerologies (e.g., SCS, CP length, etc.) can be configured differently across multiple cells that are merged into a single terminal. Accordingly, the (absolute time) interval of a time resource (e.g., subframe, slot, or TTI) (conveniently referred to as a TU (Time Unit)) consisting of the same number of symbols can be configured differently across the merged cells. In NR, multiple numerologies or SCSs can be supported to support various 5G services. For example, when the SCS is 15 kHz, a wide area in traditional cellular bands can be supported, and when the SCS is 30 kHz / 60 kHz, dense-urban, lower latency, and wider carrier bandwidth can be supported. When the SCS is 60 kHz or higher, bandwidths greater than 24.25 GHz may be supported to overcome phase noise.

[0060] The NR frequency band can be defined by two types of frequency ranges. The two types of frequency ranges can be FR1 and FR2. The numerical values ​​of the frequency ranges can be changed, and for example, the two types of frequency ranges can be as shown in Table 3 below. 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).

[0061] Frequency Range designationCorresponding frequency rangeSubcarrier Spacing (SCS)FR1450MHz - 6000MHz15, 30, 60kHzFR224250MHz - 52600MHz60, 120, 240kHz

[0062] 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 4 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).

[0063] Frequency Range designationCorresponding frequency rangeSubcarrier Spacing (SCS)FR1410MHz - 7125MHz15, 30, 60kHzFR224250MHz - 52600MHz60, 120, 240kHz

[0064] Figure 4 shows the slot structure of an NR frame.

[0065] Referring to Figure 4, a slot includes multiple symbols in the time domain. For example, in the case of a normal CP, one slot may include 14 symbols, but in the case of an extended CP, one slot may include 12 symbols. Alternatively, in the case of a normal CP, one slot may include 7 symbols, but in the case of an extended CP, one slot may include 6 symbols.

[0066] A carrier includes multiple subcarriers in the frequency domain. An RB (Resource Block) can be defined as multiple (e.g., 12) consecutive subcarriers in the frequency domain. A BWP (Bandwidth Part) can be defined as multiple consecutive (P)RBs ((Physical) Resource Blocks) in the frequency domain, and can correspond to one numerology (e.g., SCS, CP length, etc.). A carrier can include up to N (e.g., 5) BWPs. Data communication can be performed through activated BWPs. Each element can be referred to as a Resource Element (RE) in the resource grid, and one complex symbol can be mapped to it.

[0067] Meanwhile, the wireless interface between terminals or between terminals and a network may be composed of an L1 layer, an L2 layer, and an L3 layer. In various embodiments of the present disclosure, the L1 layer may refer to a physical layer. Furthermore, for example, the L2 layer may refer to at least one of a MAC layer, an RLC layer, a PDCP layer, and an SDAP layer. Furthermore, for example, the L3 layer may refer to an RRC layer.

[0068] Bandwidth part (BWP)

[0069] The NR system can support up to 400 MHz per component carrier (CC). If a terminal operating in such a wideband CC always operates with the RF on for the entire CC, the terminal battery consumption may increase. Alternatively, when considering multiple use cases (e.g., eMBB, URLLC, MMTC, V2X, etc.) operating within a wideband CC, different numerologies (e.g., sub-carrier spacing) may be supported for each frequency band within the CC. Alternatively, each terminal may have different capabilities for maximum bandwidth. Considering this, the base station can instruct the terminal to operate only in a portion of the bandwidth rather than the entire bandwidth of the wideband CC, and this portion of bandwidth is conveniently defined as a bandwidth part (BWP). A BWP can be composed of consecutive resource blocks (RBs) on the frequency axis and can correspond to a single numerology (e.g., sub-carrier spacing, CP length, slot / mini-slot duration).

[0070] Meanwhile, the base station can set multiple BWPs even within a single CC configured for the UE. For example, in the PDCCH monitoring slot, a BWP occupying a relatively small frequency range can be set, and the PDSCH indicated by the PDCCH can be scheduled on a larger BWP. Alternatively, if UEs are concentrated in a specific BWP, some UEs can be set to a different BWP for load balancing. Alternatively, considering frequency domain inter-cell interference cancellation between neighboring cells, a portion of the spectrum in the middle of the total bandwidth can be excluded, and both BWPs can be set within the same slot. That is, the base station can configure at least one DL / UL BWP for a terminal associated with a wideband CC, and can activate at least one DL / UL BWP among the configured DL / UL BWP(s) at a specific point in time (by L1 signaling or MAC CE or RRC signaling, etc.), and switching to another configured DL / UL BWP can be indicated (by L1 signaling or MAC CE or RRC signaling, etc.), or switching to a predetermined DL / UL BWP when the timer value expires based on a timer. At this time, the activated DL / UL BWP is defined as the active DL / UL BWP. However, the terminal may not receive the configuration for the DL / UL BWP in situations such as when the terminal is in the initial access process or before the RRC connection is set up. In such situations, the DL / UL BWP assumed by the terminal is defined as the initial active DL / UL BWP.

[0071] FIG. 5 is a diagram for explaining physical channels that can be used in various embodiments and a signal transmission method using the same.

[0072] Referring to FIG. 5, a terminal that is powered on again after being powered off or that has newly entered a cell performs an initial cell search operation, such as synchronizing with the base station, in step S101. To this end, the terminal receives a Synchronization Signal Block (SSB) from the base station. The SSB includes a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), and a Physical Broadcast Channel (PBCH). Based on the PSS / SSS, the terminal synchronizes with the base station and obtains information such as a cell ID (cell identity). In addition, the terminal can obtain broadcast information within the cell based on the PBCH. Meanwhile, the terminal can check the downlink channel status by receiving a Downlink Reference Signal (DL RS) during the initial cell search phase.

[0073] A terminal that has completed initial cell search can obtain more specific system information by receiving a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) based on physical downlink control channel information (S12).

[0074] Thereafter, the terminal may perform a random access procedure to complete connection to the base station (S13 to S16). To this end, the terminal may transmit a preamble through a physical random access channel (PRACH) (S13) and receive a random access response (RAR) for the preamble through a physical downlink control channel and a corresponding physical downlink shared channel (S14). The terminal may transmit a physical uplink shared channel (PUSCH) using scheduling information in the RAR (S15) and perform a contention resolution procedure such as receiving a physical downlink control channel signal and a corresponding physical downlink shared channel signal (S16).

[0075] Meanwhile, in addition to the random access process performed in 4 steps as above (4-step RACH, type-1 random access procedure), when the random access process is performed in 2 steps (2-step RACH, type-2 random access procedure), S13 / S15 may be performed as one operation in which the terminal performs transmission (e.g., transmission operation of message A including PRACH preamble and / or PUSCH), and S14 / S16 may be performed as one operation in which the base station performs transmission (e.g., transmission operation of message B including RAR and / or collision resolution information).

[0076] A terminal that has performed the procedure described above can then perform general uplink / downlink signal transmission procedures, such as receiving a physical downlink control channel signal and / or a physical downlink shared channel signal (S17) and transmitting a physical uplink shared channel (PUSCH: Physical Uplink Shared Channel) signal and / or a physical uplink control channel (PUCCH: Physical Uplink Control Channel) signal (S18).

[0077] Control information transmitted from a terminal to a base station is collectively referred to as uplink control information (UCI). UCI includes information such as HARQ-ACK / NACK (Hybrid Automatic Repeat and reQuest Acknowledgement / Negative-ACK), SR (Scheduling Request), CQI (Channel Quality Indication), PMI (Precoding Matrix Indication), and RI (Rank Indication).

[0078] UCI is typically transmitted periodically over the PUCCH, but can also be transmitted over the PUSCH when control information and data must be transmitted simultaneously. Furthermore, terminals can transmit UCI aperiodically over the PUSCH at the request / instruction of the network.

[0079] Figure 6 illustrates a process in which a terminal transmits ACK / NACK via PUSCH.

[0080] Referring to FIG. 6, the terminal can detect a PDCCH in slot #n. Here, the PDCCH includes downlink scheduling information (e.g., DCI formats 1_0, 1_1), and the PDCCH indicates a DL assignment-to-PDSCH offset (K0) and a PDSCH-HARQ-ACK reporting offset (K1). For example, DCI formats 1_0, 1_1 can include the following information:

[0081] - Frequency domain resource assignment: Indicates the set of RBs allocated to the PDSCH.

[0082] - Time domain resource assignment: K0 (e.g., slot offset), indicates the starting position of the PDSCH within slot #n+K0 (e.g., OFDM symbol index), and the length of the PDSCH (e.g., number of OFDM symbols).

[0083] - PDSCH-to-HARQ_feedback timing indicator: Indicates K1

[0084] - HARQ process number (4 bits): Indicates the HARQ process ID (Identity) for data (e.g., PDSCH, TB)

[0085] - PUCCH resource indicator (PRI): Indicates the PUCCH resource to be used for UCI transmission among multiple PUCCH resources within the PUCCH resource set.

[0086] Afterwards, the terminal receives PDSCH from slot #(n+K0) according to the scheduling information of slot #n, and when reception of PDSCH is finished in slot #n1 (where, n+K0≤n1), UCI can be transmitted through PUCCH in slot #(n1+K1). Here, UCI may include HARQ-ACK response for PDSCH. In Fig. 6, for convenience, it is assumed that SCS for PDSCH and SCS for PUCCH are the same and slot # n1 = slot #n+K0, but the present invention is not limited thereto. If the SCSs are different, K1 can be indicated / interpreted based on the SCS of PUCCH.

[0087] When the PDSCH is configured to transmit at most 1 TB, the HARQ-ACK response may consist of 1 bit. When the PDSCH is configured to transmit at most 2 TB, the HARQ-ACK response may consist of 2 bits if spatial bundling is not configured, and may consist of 1 bit if spatial bundling is configured. When the HARQ-ACK transmission timing for multiple PDSCHs is designated as slot #(n+K1), the UCI transmitted in slot #(n+K1) includes HARQ-ACK responses for multiple PDSCHs.

[0088] Whether a UE should perform spatial bundling for a HARQ-ACK response can be configured (e.g., via RRC / higher layer signaling) for each cell group. For example, spatial bundling can be individually configured for each HARQ-ACK response transmitted over the PUCCH and / or each HARQ-ACK response transmitted over the PUSCH.

[0089] Spatial bundling can be supported when the maximum number of TBs (or codewords) that can be received at a time (or scheduled via 1 DCI) in the serving cell is 2 (or more than 2) (e.g., when the upper layer parameter maxNrofCodeWordsScheduledByDCI corresponds to 2-TB). Meanwhile, more than 4 layers can be used for 2-TB transmission, and up to 4 layers can be used for 1-TB transmission. Consequently, when spatial bundling is configured for the cell group, spatial bundling can be performed for serving cells that can schedule more than 4 layers among the serving cells in the cell group. On the serving cell, a UE that wishes to transmit a HARQ-ACK response via spatial bundling can generate the HARQ-ACK response by performing a (bit-wise) logical AND operation on the A / N bits for multiple TBs.

[0090] For example, assuming that a terminal receives a DCI scheduling 2 TB and receives 2 TB via PDSCH based on the DCI, the terminal performing spatial bundling can generate a single A / N bit by logically ANDing the first A / N bit for the first TB and the second A / N bit for the second TB. Consequently, if both the first TB and the second TB are ACK, the terminal reports the ACK bit value to the base station, and if either TB is NACK, the terminal reports the NACK bit value to the base station.

[0091] For example, if only 1-TB is actually scheduled on a serving cell configured to receive 2-TB, the terminal can generate a single A / N bit by logically ANDing the A / N bit for the 1-TB with bit value 1. Consequently, the terminal reports the A / N bit for the 1-TB to the base station as is.

[0092] A base station / terminal has multiple parallel DL HARQ processes for DL ​​transmission. These multiple parallel HARQ processes allow DL transmissions to be performed continuously while waiting for HARQ feedback regarding the success or failure of the previous DL transmission. Each HARQ process is associated with a HARQ buffer in the MAC (Medium Access Control) layer. Each DL HARQ process manages state variables such as the number of transmissions of MAC Physical Data Blocks (PDUs) in the buffer, HARQ feedback for MAC PDUs in the buffer, and the current redundancy version. Each HARQ process is identified by a HARQ process ID.

[0093] Below, the PUSCH transmission process is described.

[0094] The terminal can detect the PDCCH in slot #n. Here, the PDCCH includes uplink scheduling information (e.g., DCI formats 0_0 and 0_1). DCI formats 0_0 and 0_1 can include the following information.

[0095] - Frequency domain resource assignment: Indicates the set of RBs allocated to PUSCH.

[0096] - Time domain resource assignment: Slot offset K2 indicates the starting position (e.g., symbol index) and length (e.g., number of OFDM symbols) of the PUSCH within the slot. The starting symbol and length can be indicated through SLIV (Start and Length Indicator Value) or can be indicated separately.

[0097] Thereafter, the terminal can transmit a PUSCH in slot #(n+K2) according to the scheduling information of slot #n. Here, the PUSCH includes a UL-SCH TB.

[0098] CSI-related actions

[0099] Figure 7 shows an example of a CSI-related procedure.

[0100] The terminal receives configuration information related to CSI from the base station via RRC signaling (710). The configuration information related to CSI may include at least one of CSI-IM (interference management) resource-related information, CSI measurement configuration-related information, CSI resource configuration-related information, CSI-RS resource-related information, or CSI report configuration-related information.

[0101] - CSI-IM resources can be configured for interference measurement (IM) of the terminal. In the time domain, the CSI-IM resource set can be configured periodically, semi-persistently, or aperiodicly. The CSI-IM resources can be configured as Zero Power (ZP)-CSI-RS for the terminal. The ZP-CSI-RS can be configured separately from the Non-Zero Power (NZP)-CSI-RS.

[0102] - The UE may assume that the CSI-RS resource(s) for channel measurement configured for one CSI reporting and the CSI-IM / NZP CSI-RS resource(s) for interference measurement (when NZP CSI-RS resource(s) are used for interference measurement) are in a QCL relationship with respect to 'QCL-TypeD' per resource.

[0103] - The CSI resource configuration may include at least one of a CSI-IM resource for interference measurement, an NZP CSI-RS resource for interference measurement, and an NZP CSI-RS resource for channel measurement. The CMR (channel measurement resource) may be an NZP CSI-RS for CSI acquisition, and the IMR (Interference measurement resource) may be an NZP CSI-RS for CSI-IM and IM.

[0104] - CSI-RS can be configured for one or more terminals. Different CSI-RS configurations may be provided for each terminal, or the same CSI-RS configuration may be provided to multiple terminals. CSI-RS can support up to 32 antenna ports. CSI-RS corresponding to N (N is 1 or greater) antenna ports can be mapped to N RE locations within a time-frequency unit corresponding to one slot and one RB. When N is 2 or greater, N-port CSI-RS can be multiplexed using CDM, FDM, and / or TDM schemes. CSI-RS can be mapped to REs other than REs to which CORESET, DMRS, and SSB are mapped. In the frequency domain, CSI-RS can be configured for the entire bandwidth, a portion of the bandwidth (BWP), or a portion of the bandwidth. CSI-RS may be transmitted in each RB within the bandwidth for which CSI-RS is configured (i.e., density = 1), or in every second RB (e.g., even or odd RB) (i.e., density = 1 / 2). When CSI-RS is used as a Tracking Reference Signal (TRS), a single-port CSI-RS may be mapped on three subcarriers in each resource block (i.e., density = 3). One or more CSI-RS resource sets may be configured for a UE in the time domain. Each CSI-RS resource set may include one or more CSI-RS configurations. Each CSI-RS resource set may be configured periodically, semi-persistently, or aperiodicly.

[0105] - The CSI report configuration may include configurations for feedback type, measurement resources, report type, etc. The NZP-CSI-RS resource set may be used for the CSI report configuration of the corresponding terminal. The NZP-CSI-RS resource set may be associated with CSI-RS or SSB. In addition, multiple periodic NZP-CSI-RS resource sets may be configured as TRS resource sets. (i) The feedback type may include a Channel Quality Indicator (CQI), a Precoding Matrix Indicator (PMI), a CSI-RS Resource Indicator (CRI), an SSB Resource block Indicator (SSBRI), a Layer Indicator (LI), a Rank Indicator (RI), a Layer 1-Reference Signal Received Strength (RSRP), etc. (ii) Measurement resources may include configurations for downlink signals and / or downlink resources on which the terminal performs measurements to determine feedback information. The measurement resources may be configured as ZP and / or NZP CSI-RS resource sets associated with CSI reporting configurations. The NZP CSI-RS resource set may include a CSI-RS set or an SSB set. For example, L1-RSRP may be measured for a CSI-RS set or an SSB set. (iii) Reporting types may include configurations for a time point at which the terminal performs reporting and an uplink channel, etc. The reporting time point may be configured as periodic, semi-persistent, or aperiodic. Periodic CSI reporting may be transmitted on PUCCH. Semi-persistent CSI reporting may be transmitted on PUCCH or PUSCH based on a MAC CE indicating activation / deactivation. Aperiodic CSI reporting may be indicated by DCI signaling.For example, the CSI request field of an uplink grant may indicate one of several report trigger sizes. Aperiodic CSI reports may be transmitted on the PUSCH.

[0106] The terminal measures CSI based on configuration information related to CSI. CSI measurement may include a procedure of receiving a CSI-RS (720) and computing the received CSI-RS to acquire CSI (730).

[0107] The UE can transmit a CSI report to the base station (740). For the CSI report, the time and frequency resources that the UE can use are controlled by the base station. The CSI (channel state information) can include at least one of a channel quality indicator (CQI), a precoding matrix indicator (PMI), a CSI-RS resource indicator (CRI), an SS / PBCH block resource indicator (SSBRI), a layer indicator (LI), a rank indicator (RI), L1-RSRP, and / or L-SINR.

[0108] The time domain behavior of CSI reporting supports periodic, semi-persistent, and aperiodic. i) Periodic CSI reporting is performed on short PUCCH and long PUCCH. The periodicity and slot offset of periodic CSI reporting can be configured by RRC, and refer to the CSI-ReportConfig IE. ii) SP (semi-periodic) CSI reporting is performed on short PUCCH, long PUCCH, or PUSCH. In case of SP CSI on short / long PUCCH, the periodicity and slot offset are configured by RRC, and CSI reporting is activated / deactivated by separate MAC CE / DCI. In case of SP CSI on PUSCH, the periodicity of SP CSI reporting is configured by RRC, but the slot offset is not configured by RRC, and SP CSI reporting is activated / deactivated by DCI (format 0_1). For SP CSI reporting on PUSCH, a separate RNTI (SP-CSI C-RNTI) is used. The initial CSI reporting timing follows the PUSCH time domain allocation value indicated in the DCI, and subsequent CSI reporting timings follow the cycle set by RRC. DCI format 0_1 ​​includes a CSI request field and can activate / deactivate a specific configured SP-CSI trigger state. SP CSI reporting has the same or similar activation / deactivation mechanism as the data transmission mechanism on the SPS PUSCH.iii) Aperiodic CSI reporting is performed on PUSCH and is triggered by DCI. In this case, information related to the triggering of aperiodic CSI reporting can be transmitted / indicated / configured via MAC-CE. For AP CSI with AP CSI-RS, the AP CSI-RS timing is configured by RRC, and the timing for AP CSI reporting is dynamically controlled by DCI.

[0109] CSI codebooks defined in the NR standard (e.g., PMI codebooks) can be broadly divided into Type I and Type II codebooks. Type I codebooks are primarily targeted at SU (Single User)-MIMO, which supports both high-order and low-order signals. Type II codebooks can primarily support MI-MIMO, which supports up to two layers. Compared to Type I, Type II codebooks can provide more accurate CSI, but may increase signaling overhead. Meanwhile, Enhanced Type II codebooks were introduced to address the CSI overhead shortcomings of existing Type II codebooks. Enhanced Type II codebooks were introduced by reducing the codebook payload by considering frequency-axis correlation.

[0110] CSI reporting via PUSCH can be configured as Part 1 and Part 2. Part 1 has a fixed payload size and is used to identify the number of information bits in Part 2. Part 1 is transmitted in its entirety before Part 2.

[0111] - For Type I CSI feedback, Part 1 contains the RI (if reported), the CRI (if reported), and the CQI of the first code word. Part 2 contains the PMI, and when RI > 4, Part 2 contains the CQI.

[0112] - For Type II CSI feedback, Part 1 contains the RI (if reported), CQI, and an indication of the number of non-zero WB amplitude coefficients per layer of Type II CSI. Part 2 contains the PMI of Type II CSI.

[0113] - For Enhanced Type II CSI feedback, Part 1 contains the RI (if reported), CQI, and the total number of non-zero WB amplitude coefficients for all layers of Enhanced Type II CSI. Part 2 contains the PMI of Enhanced Type II CSI.

[0114] If CSI reporting on PUSCH includes two parts and the CSI payload to be reported is less than the payload size provided by the PUSCH resources allocated for CSI reporting, the UE may omit part of Part 2 CSI.

[0115] Meanwhile, semi-persistent CSI reporting performed in PUCCH format 3 or 4 supports Type II CSI feedback, but only Part 1 of Type II CSI feedback.

[0116] QCL (quasi-co location)

[0117] Two antenna ports are quasi-co-located if the channel properties of one antenna port can be inferred from the channel properties of the other antenna port. The channel properties may include one or more of Delay spread, Doppler spread, Frequency / Doppler shift, Average received power, Received Timing / average delay, and Spatial RX parameters.

[0118] A terminal can configure a list of multiple TCI-State configurations via the upper layer parameter PDSCH-Config. Each TCI-State is associated with one or two DL reference signals and a QCL configuration parameter between the DM-RS port of the PDSCH. The QCL can include qcl-Type1 for the first DL RS and qcl-Type2 for the second DL RS. The QCL type can correspond to one of the following:

[0119] - 'QCL-TypeA': {Doppler shift, Doppler spread, average delay, delay spread}

[0120] - 'QCL-TypeB': {Doppler shift, Doppler spread}

[0121] - 'QCL-TypeC': {Doppler shift, average delay}

[0122] - 'QCL-TypeD': {Spatial Rx parameter}

[0123] L3 CLI Report

[0124] L3 CLI reporting can be defined as follows (3GPP TS 38.331).

[0125] 1> if there is at least one applicable CLI measurement resource to report:

[0126] 2> if thereportTypeis set tocli-EventTriggeredorcli-Periodical:

[0127] 3> set themeasResultCLIto include the most interfering SRS resources or most interfering CLI-RSSI resources up tomaxReportCLIin accordance with the following:

[0128] 4> if thereportTypeis set tocli-EventTriggered:

[0129] 5> if trigger quantity is set tosrs-RSRPi.e.i1-Thresholdis set tosrs-RSRP:

[0130] 6> include the SRS resource included in thecli-TriggeredListas defined within theVarMeasReportListfor thismeasId;

[0131] 5> if trigger quantity is set tocli-RSSIi.e.i1-Thresholdis set tocli-RSSI:

[0132] 6> include the CLI-RSSI resource included in thecli-TriggeredListas defined within theVarMeasReportListfor thismeasId;

[0133] 4> else:

[0134] 5> ifreportQuantityCLIis set tosrs-rsrp:

[0135] 6> include the applicable SRS resources for which the new measurement results became available since the last periodical reporting or since the measurement was initiated or reset;

[0136] 5> else:

[0137] 6> include the applicable CLI-RSSI resources for which the new measurement results became available since the last periodical reporting or since the measurement was initiated or reset;

[0138] 4> for each SRS resource that is included in themeasResultCLI:

[0139] 5> include thesrs-ResourceId;

[0140] 5> setsrs-RSRP-Resultto include the layer 3 filtered measured results in decreasing order, i.e. the most interfering SRS resource is included first;

[0141] 4> for each CLI-RSSI resource that is included in themeasResultCLI:

[0142] 5> include therssi-ResourceId;

[0143] 5> setcli-RSSI-Resultto include the layer 3 filtered measured results in decreasing order, ie the most interfering CLI-RSSI resource is included first;

[0144] Additionally, events that trigger L3 CLI reporting can be defined as follows:

[0145] Periodic configuration / event trigger

[0146] - Event A1: Serving becomes better than absolute threshold;

[0147] - Event A2: Serving becomes worse than absolute threshold;

[0148] - Event A3: Neighbor becomes amount of offset better than PCell / PSCell;

[0149] - Event A4: Neighbor becomes better than absolute threshold;

[0150] - Event A5: PCell / PSCell becomes worse than absolute threshold1 AND Neighbor / SCell becomes better than another absolute threshold2;

[0151] - Event A6: Neighbor becomes amount of offset better than SCell;

[0152] - 이벤트 D1: Distance between UE and a reference locationreferenceLocation1becomes larger than configured thresholddistanceThreshFromReference1and distance between UE and a reference locationreferenceLocation2becomes shorter than configured thresholddistanceThreshFromReference2;

[0153] - 조건부 이벤트 (CondEvent) A3: Conditional reconfiguration candidate becomes amount of offset better than PCell / PSCell;

[0154] - 조건부 이벤트 (CondEvent) A4: Conditional reconfiguration candidate becomes better than absolute threshold;

[0155] - 조건부 이벤트 (CondEvent) A5: PCell / PSCell becomes worse than absolute threshold1 AND Conditional reconfiguration candidate becomes better than another absolute threshold2;

[0156] - Conditional Event (CondEvent) D1: Distance between UE and a reference locationreferenceLocation1becomes larger than configured thresholddistanceThreshFromReference1and distance between UE and a reference locationreferenceLocation2of conditional reconfiguration candidate becomes shorter than configured thresholddistanceThreshFromReference2;

[0157] - Conditional Event (CondEvent) T1: Time measured at UE becomes more than configured thresholdt1-Thresholdbut is less thant1-Threshold + duration;

[0158] - Event X1: Serving L2 U2N Relay UE becomes worse than absolute threshold1 AND NR Cell becomes better than another absolute threshold2;

[0159] - Event X2: Serving L2 U2N Relay UE becomes worse than absolute threshold;

[0160] - For Event I1, the measurement reporting event is based on the CLI measurement result, which can be derived based on SRS-RSRP or CLI-RSSI.

[0161] - Event I1: Interference becomes higher than absolute threshold.

[0162] Beam Management (BM)

[0163] The BM process is a process for acquiring and maintaining a set of BS (or transmission and reception point (TRP)) and / or UE beams that can be used for downlink (DL) and uplink (UL) transmission / reception, and may include the following processes and terms.

[0164] - Beam measurement: An operation in which a BS or UE measures the characteristics of a received beamforming signal.

[0165] - Beam determination: An operation in which a BS or UE selects its own transmit beam (Tx beam) / receive beam (Rx beam).

[0166] - Beam sweeping: An operation of covering a spatial domain using transmit and / or receive beams over a predetermined time interval in a predetermined manner.

[0167] - Beam report: An operation in which a UE reports information about a beamformed signal based on beam measurement.

[0168] The BM process can be divided into (1) a DL BM process using SSB or CSI-RS, and (2) a UL BM process using SRS (sounding reference signal). In addition, each BM process can include Tx beam sweeping to determine a Tx beam and Rx beam sweeping to determine an Rx beam.

[0169] At this time, the DL BM process may include (1) transmission of beamformed DL RSs (e.g., CSI-RS or SSB) by the BS and (2) beam reporting by the UE.

[0170] Here, the beam report may include preferred DL RS ID(s) and corresponding reference signal received power (RSRP). The DL RS ID may be an SSB Resource Indicator (SSBRI) or a CSI-RS Resource Indicator (CRI).

[0171] Uplink power control

[0172] Figure 8 is a diagram for explaining parameters that control the uplink transmission power of the UE.

[0173] The UE can transmit an uplink signal based on parameters RRC signaled from the base station. For example, the UE can determine the transmission power of the PUSCH, which is an uplink data channel, based on the parameters illustrated in FIG. 8 (a). In addition, the UE can determine the transmission power of the PUCCH, which is an uplink control channel, based on the parameters illustrated in FIG. 8 (b) (see TS 213). Meanwhile, it is assumed that the parameters illustrated in FIG. 8 are generally known parameters in a given scenario (3GPP TS 38.213) and can be defined as defined in the given scenario.

[0174] Specifically, among the parameters shown in Fig. 8, the one that directly indicates the transmission power of the UE by the gNB is the OLPC (open loop power control parameter), which is all indicated as (1). In PUSCH, OLPC is P O_NOMINAL_PUSCH,f,c (j) and P O_UE_PUSCH,b,f,c (j) is the sum of and the corresponding values ​​with index j that determines it can be linked as follows.

[0175] -> If j=0:P0-PUSCH-AlphaSet is not present and type 1 / 2 random access is used,

[0176] - PO_UE_PUSCH,b,f,c (j)=0

[0177] - P O_NOMINAL_PUSCH,f,c (j) is the value given in msg3 or msg1

[0178] -> j=1: if configured grant

[0179] - P O_UE_PUSCH,b,f,c (j) is p0-PUSCH-Alpha

[0180] - P O_NOMINAL_PUSCH,f,c (j) is p0-NominalWithoutGrant

[0181] -> j={2,..,J-1}: When DCI is scheduled with / without SRI field,

[0182] - P O_UE_PUSCH,b,f,c (j) is given in P0-PUSCH-AlphaSet / P0-PUSCH-Set from PUSCH-powercontrolId mapping / specific rule determined from SRI field of DCI.

[0183] - P O_NOMINAL_PUSCH,f,c (j) is p0-NominalWithGrant

[0184] Full duplex operation for NR

[0185] Figures 9 and 10 are drawings for explaining a method of performing full duplex operation in an NR system.

[0186] 5G is giving rise to new service types, such as XR (Extended Reality), AI-based services, and self-driving cars. These services feature dynamic traffic in both DL and UL directions, and require low latency for packet transmission. To support these diverse new use cases, 5G services could experience explosive growth in traffic load. Meanwhile, existing semi-static or dynamic TDD UL / DL configurations may face limitations in transmission delays and interference between operators. Existing FDD schemes may 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.

[0187] Referring to Fig. 9, a method of applying full-duplex operation in an intra-carrier is illustrated. Specifically, the full-duplex operation may be considered as the subband-wise full duplex (SB-FD) method illustrated in Fig. 9 (a) and the spectrum-sharing full duplex (SS-FD) method illustrated in Fig. 9 (b).

[0188] In the case of SB-FD, transmission and reception of DL and UL can be performed using different frequency resources on the same carrier. That is, DL and UL can have different frequency resources for the same time resource. In the case of SS-FD, transmission and reception of DL and UL are performed using the same frequency resources or overlapping frequency resources on the same carrier. That is, DL and UL can be assigned the same or overlapping frequency resources for the same time resource.

[0189] This full-duplex operation can be combined with existing half-duplex operation. For example, in existing half-duplex-based TDD operation, only some time resources can be used for full-duplex operation. In the time resources where full-duplex operation is performed, SB-FD or SS-FD operation can be performed.

[0190] Specifically, referring to FIG. 10, time resources may exist together as time resources operating in HD (half duplex) and as time resources operating in FD (full duplex), such as SB-FD or SS-FD. As illustrated in FIG. 10 (a), the time resources may include some time resources for SB-FD operation and the remaining time resources for HD operation. Alternatively, as illustrated in FIG. 10 (b), the time resources may include time resources for SS-FD operation and the remaining time resources for HD operation. In this case, the unit of the time resources (for SS-FD operation, SB-FD operation, or HD operation) may be a slot or a symbol unit. Meanwhile, in the time resources operating in SB-FD, some frequency resources may be used as DL resources, and some frequency resources may be used as UL resources.

[0191] In the following, frequency resources operating as DL among the entire frequency resources in a time resource operating as FD (e.g., SB-FD operation or SS-FD operation) are defined as DL sub-bands, and frequency resources operating as UL are defined as UL sub-bands.

[0192] In the case of the full-duplex (hereinafter, FD) operation as described above, the FD operation can be performed from both the gNB perspective and the UE perspective. For example, both the gNB and the UE can simultaneously transmit and receive DL / UL using the same or different frequency resources in the same time resource. Alternatively, only the gNB can perform the FD operation (in the same time resource), and the UE can perform the HD operation. The gNB can simultaneously transmit and receive DL and UL using the same or different frequency resources in the same time resource, but the UE can perform only DL reception or UL transmission in a specific time resource. In this case, the gNB can perform the FD operation in a way that performs DL transmission and UL reception for different UEs at the same time point (or, the same time resource).

[0193] The following description generally assumes that the gNB performs FD operations and the UE performs HD operations. However, the description can also be applied to cases where both the gNB and the UE perform FD operations. Based on the above discussion, the following describes in detail how to configure BWP resources for intra-carrier FD operations.

[0194] The introduction of FDR is being discussed in certain scenarios (e.g., 3GPP RAN plenary). There are two main types of FDR being discussed in these scenarios: one is FDR, in which the gNB transmits and receives DL and UL signals (or transmits DL and receives UL) at the same frequency at the same time; and the other is FDR, in which the gNB transmits and receives DL and UL signals (or transmits DL and receives UL) at different frequencies at the same time. Here, different frequencies refer to different frequency resources, but different frequencies within a carrier or spectrum, unlike FDD. In both cases, the UE may or may not support FDR, in which transmission and reception occur at the same time, while in all cases, it is assumed that the gNB transmits and receives at the same time.

[0195] In operating this FDR, the gNB may consider dividing the time intervals into HD (half duplex) and FD (full duplex). These can be broadly categorized into SBFD (sub-band full duplex) and SFFD (single frequency full duplex). The slot configuration and cell resource pattern for these can be considered based on the following example.

[0196] First, SBFD can be considered as shown in Figs. 9 (a) and 10 (a). Specifically, referring to Fig. 9 (a), the subband region of the DL and the subband region of the UL may not overlap each other. In this case, a guard band may exist between the subband region of the DL and the subband region of the UL (example of slot configuration). Alternatively, referring to Fig. 10 (a), the SBFD operation can be performed based on a resource pattern of a cell or base station. For example, in the resource pattern, a half-duplex (HD) slot / symbol and an SBFD slot / symbol can be TDM'd with each other.

[0197] Alternatively, SFFD may be considered as examples such as those in FIG. 9 (b) and FIG. 10 (b). Specifically, referring to FIG. 9 (b), the subband region of the DL and the subband region of the UL may overlap with each other. Alternatively, referring to FIG. 10 (b), the SFFD operation may be performed based on a resource pattern of a cell or a base station. For example, in the resource pattern, a half-duplex (HD) slot / symbol and an SBFD slot / symbol may be TDM'd with each other.

[0198] In both the above-described SBFD and SFFD (hereinafter, SBFD), the most essential consideration when considering the FDR operation of the gNB is the consideration of SI (Self-Interference). Since the transmit power of the base station is relatively higher than the transmit power of the UE, the power level of the SI from the receiving perspective of the gNB performing FDR is likely to be higher than the reception power level of the signal transmitted by the UE. Therefore, the introduction of a high level of SI suppression is essential, and this is not only when the gNB transmits and receives DL and UL at the same time and frequency, but also when the gNB uses different frequencies for DL ​​and UL at the same time but does not have sufficient frequency separation, interference may occur, and SI suppression is necessary for this as well.

[0199] There are several ways to enable SI suppression in gNB. Hereinafter, these are collectively referred to as Successive Interference Cancellation (SIC), and representative methods include antenna separation, analog SIC, linear digital SIC, and non-linear digital SIC. A combination of all or some of these can be considered. The interference suppression / cancellation capability of SIC is called SIC gain. The gNB determines the target reception power level of the received signal based on the power level of interference, such as SI, and the SIC gain. In other words, the noise figure of the received signal is the value obtained by subtracting the SIC gain from the power level of the interference, and the power level of the received signal relative to this noise figure forms the reception SNR. At this time, since the transmission signal strength of the gNB is directly related to the coverage, it is not desirable to lower it, and the SIC gain may be small or insufficient due to various factors such as constraints on HW or time / frequency resources, channel environment, etc. Here, insufficient means that when the gNB transmits UL for a time resource performing FD with the same transmission power as the UL transmitted by the UE in a time resource where the gNB does not perform FD (e.g., performs HD), the reception SNR is reduced due to the limitation of the SIC gain. To prevent this phenomenon, the gNB may consider allocating a higher transmission power when the UE transmits UL in a time resource where the gNB performs FD compared to the power at which the UE transmits UL in a time resource where the gNB performs HD.

[0200] Alternatively, the SNR of the UL signal scheduled and received by the gNB in ​​advance may be reduced due to channel conditions such as a sudden increase in SI during the time resource during which the gNB performs FD and performance limitations of the SIC gain. In this case, the UL signal may experience a degradation in reception sensitivity from the gNB's perspective, and the gNB may be unable to decode the UL signal or may not be able to decode it properly. Consequently, only increased interference in the cell may occur. In such a situation, the gNB may instruct the UE to stop transmitting the UL signal or reduce the transmission power as described above.

[0201] Alternatively, due to the influence of CLI, the transmit power of the UE in the FD slot may need to be adjusted compared to the HD slot. Power adjustment related to this can be broadly considered in two ways. First, in case the influence of UL to UL interference is large, a method of reducing the UE UL power in the FD slot can be considered to reduce the interference, and second, in case the influence of gNB to gNB interference is large, a method of increasing the UL power of the UE in the FD slot can be considered to increase the UL RSRP. To this end, the gNB can set an offset (power offset) between the transmit power of the UE in the FD execution time resource of the gNB and the transmit power of the UE in the HD execution time resource of the gNB. Hereinafter, methods for setting the power offset, etc. for power adjustment between the HD slot and the FD slot will be described in detail.

[0202] Power control enhancement for FDR

[0203] Hereinafter, we describe a situation in which a UE transmits an UL signal in a Full Duplex Radio (FDR) scenario of a base station (e.g., a scenario in which a gNB performs DL transmission and UL reception in the same time slot). The FDR operation of the gNB may include both cases in which the transmitting and receiving frequencies are the same (SFFD) and different cases (SBFD), and may be an operation in which DL transmission and UL reception are performed simultaneously in the same time resource. When the gNB performs simultaneous transmission and reception (e.g., when performing FDR operation), an operation to cancel Self-Interference (SI) is required at the receiving end. Receiver technologies that enable this include Successive Interference Cancellation (SIC). Due to limitations of such receiver technologies, or for better reception sensitivity of the base station performing FDR, when a UE transmits in a time resource in which the gNB performs FDR, the gNB may configure / instruct the UE to transmit an UL signal with a higher transmit power than in a time resource in which the UE does not perform FDR. Alternatively, to minimize UE-to-UE CLI occurrences, the gNB may configure / instruct the UE to transmit UL signals with lower transmit power than the time resources during which it does not perform FDR.

[0204] Meanwhile, the gNB may provide / instruct the UE with information about SBFD slots (e.g., slots where the base station performs the SBFD operation) and non-SBFD slots (e.g., slots where the base station performs the non-SBFD operation) related to the SBFD operation. In this context, when the UE transmits a PUSCH across an SBFD slot and a non-SBFD slot, the gNB may instruct / configure the UE to apply different transmit powers for each slot even if the UL configuration (or UL power configuration) is the same for the SBFD slot and the non-SBFD slot. Alternatively, the gNB may directly instruct the transmit power for each of the SBFD slot and the non-SBFD slot.

[0205] For example, the gNB may configure different UL Tx powers for the UE between the SBFD time interval and the non-SBFD time interval, considering SIC application, omission of adjacent DL bands, etc. for the time interval during which the base station performs the SBFD operation (hereinafter, SBFD time interval) and the time interval during which the base station performs the non-SBFD operation (hereinafter, non-SBFD time interval). As described above, if the UE is a UE capable of recognizing an SBFD slot / time interval, the UE may receive configuration information for the SBFD slot / time interval from the gNB. In this case, the UE may recognize / specify an SBFD slot and a non-SBFD slot based on the configuration information. In the following, methods for differently configuring the UL Tx power of the UE in a time resource during which the gNB performs the SBFD operation (hereinafter, SBFD slot / symbol) and the UL Tx power of the UE in a time resource during which the gNB does not perform the SBFD operation (hereinafter, non-SBFD slot / symbol) are described against this background.

[0206] Meanwhile, as described above, the UE may consider configuring SBFD slots / symbols (or first time resources) and non-SBFD slots / symbols (or second time resources) based on configuration / configuration information from the gNB. For example, in the following, the first time resource may be an SBFD slot / symbol or a time period in which the gNB performs an SBFD operation, and the second time resource may be a non-SBFD slot / symbol or a time period in which the gNB does not perform an SBFD operation (e.g., an HD (half-duplex) operation time period). The UE may configure configuration information (e.g., time resource information related to an SBFD operation) for the first time resource and the second time resource having such different characteristics from the gNB. When a UE performs uplink repetition, the UE may repeat uplink signals only on the first time resource or the second time resource, or may perform uplink repetition across the first time resource and the second time resource. The former case is described below in Proposal 1, and the latter case is described below in Proposal 2.

[0207] In addition, in the following, for the convenience of explanation, the proposed invention is described by defining time resources that are distinguished according to whether or not they are time intervals related to the FDR operation of the base station as first time resources and / or SBFD slots (e.g., time intervals in which the FDR operation is performed at the base station), second time resources and / or non-SBFD slots (e.g., time intervals in which the FDR operation is not performed at the base station), but the proposed invention can of course be applied to terms other than the defined terms. In addition, in the following, for the convenience of explanation, it is described on the assumption that the SBFD operation is performed among the FDR (Full Duplex Radio) operations of the base station, but the proposed methods can of course be applied to the performance of the FDR operation of the base station, such as the SSFD operation as well as the SBFD operation.

[0208] 1. Proposal 1

[0209] Proposal 1 may be a method in which the UE allocates different UL transmission powers to UL signals transmitted on each of the first and second time resources when the UE transmits over a first time resource and a second time resource according to a single configuration for the UL signals transmitted by the configuration of the gNB. Here, the case in which the uplink signal / channel is transmitted over the first time resource and the second time resource with a single configuration may be a case in which an uplink signal / channel (PUSCH, PUCCH, SRS, PRACH) with repetition configured is transmitted. Alternatively, even if repetition is not configured, there may be a case in which the UL signal / channel (e.g., P / SP CSI reporting on PUCCH, SPS PUCCH, P / SP SRS) is transmitted multiple times with the same configuration.

[0210] A UE may report capability information to the gNB indicating that it supports a capability related to SBFD when the UE supports subband-based UL transmission and / or subband-based DL reception in a first time interval during which the gNB performs SBFD operation. In this case, the UE may perform repeated uplink transmission across a first time resource (SBFD slot) and a second time resource (non-SBFD slot). Alternatively, a UE that has been instructed by the gNB to use an SBFD slot and a non-SBFD slot without separate capability signaling may perform repeated uplink transmission across the first time resource (or SBFD slot) and the second time resource (or non-SBFD slot). Here, a UE that has reported the capability information or a UE that can identify / recognize the first time resource and the second time resource may be defined as an SBFD-aware UE.

[0211] At this time, the existing / traditional UE cannot apply different power control indices to the UL signals with repetition set. However, since it is difficult for the gNB to assume that the channel environments of the SBFD UL slot and the non-SBFD UL slot are the same, the transmission power between the SBFD UL slot and the non-SBFD UL slot needs to be set differently as described above. For example, for the purpose of boosting the power of the UL signal of the UE transmitting in the SBFD UL slot due to the performance limitations of the gNB SIC, or reducing interference caused by the UE transmitting UL in the SBFD UL slot, the gNB can instruct / set the UE to allocate different transmission powers between the SBFD slot and the non-SBFD slot. As methods for this, Method 1, Method 2, and Method 3 are proposed. For example, based on at least one of Methods 1 to 3 described below, the UE may set / allocate different Tx powers in SBFD UL slots and non-SBFD UL slots as instructed by the gNB or as determined by the UE through an instruction from the gNB.

[0212] (1) Method 1

[0213] For Method 1, the UE may receive different power control parameters from the gNB for the first time resource (or SBFD UL slot) and the second time resource (or non-SBFD UL slot). Here, the following may be considered as a specific example of the UE receiving and applying different power control parameters for each time resource.

[0214] The UE can receive and apply separate Open Loop Power Control (OLPC) parameter indices for the first and second time resources from the gNB. In the existing scenario (e.g., 3GPP TS 38.213), the parameter index of the open loop power control (e.g., OLPC) among the UL signal power control parameters is j for PUSCH and q for PUCCH. u , q for SRS s There is a separate index for PRACH, and no separate index is defined for PRACH. For example, for UL signals other than PRACH, the UE may receive multiple open-loop power control parameters from the gNB in ​​advance, and may be instructed which value to apply among the parameters set by the instruction of the scheduling DCI or by a pre-agreed rule. Furthermore, the open-loop power control of the UE may be performed based on the summation of two values. One of the two values ​​may be a nominal power indicated by a cell-specific parameter (e.g., p0-nominal for PUCCH, p0-nominalWithGrant for DG-PUSCH, p0-nominalWithoutGrant for CG-PUSCH), and the other value may be a power indicated by a UE-specific parameter (one value selected from among values ​​by UE-specific configuration).

[0215] For PUSCH, the conventional open-loop power control is 'P O_PUSCH,b,f,c (j)= P O_NOMINAL_PUSCH,f,c (j) + P O_UE_PUSCH,b,f,c (j)' can be performed based on. Here, P O_UE_PUSCH,b,f,cConfigurability for (j) is supported in existing scenarios (e.g., 3GPP TS 38.213), but different indices j are not applied to multiple PUSCHs performing repetition. Therefore, according to the existing scenario, a single value of P is applied to multiple PUSCHs performing repetition. O_UE_PUSCH,b,f,c (j) can be applied. In this context, as a method for applying different open-loop power controls to the first time resource (e.g., SBFD UL slot) and the second time resource (e.g., non-SBFD UL slot), a method of adding a variable for a transmission opportunity to an existing open-loop power control parameter index can be considered. For example, among the transmission power control parameters of a UL signal, the index of a parameter that determines open-loop power control can be an existing open-loop power control parameter index to which a variable for a transmission opportunity is added. For example, in UL power control, the transmission opportunity index can be i regardless of the UL signal / channel. In this case, in the case of PUSCH, P O_PUSCH,b,f,c P on behalf of (j) O_PUSCH,b,f,c (j(i)), in the case of PUCCH, P O_PUCCH,b,f,c (q u ) instead of P O_PUCCH,b,f,c (q u (i)), in the case of SRS, P O_SRS,b,f,c (q s ) instead of P O_SRS,b,f,c (q s(i)) may be considered. In this case, even during repeated transmission of PUSCH / PUCCH / SRS, different power values ​​may be applied depending on the slot index of the transmission opportunity. For example, when a UE transmits a PUSCH / PUCCH / SRS to a gNB, a specific open-loop power control parameter index may be set by the gNB via RRC / MAC-CE / DCI so that it can be applied when the transmission of the PUSCH / PUCCH / SRS is an SBFD slot. For example, the UE may be instructed via RRC / MAC-CE / DCI of a specific open-loop power control parameter index to be applied when performing UL transmission in an SBFD UL slot. In this case, the instruction for the specific open-loop power control parameter index may be an instruction for a single value for each UL signal (e.g., PUSCH, PUCCH, SRS, PRACH). Alternatively, a specific open-loop power control parameter index may be further specified for each DG (dynamic grant)-PUSCH, type 1 CG (configured grant)-PUSCH, type 2 CG-PUSCH, and PUCCH format. Alternatively, an indication for a specific open-loop power control parameter index may be signaled together when the gNB configures the first time resource (or SBFD slot) to the UE. For example, the UE may receive from the gNB an open-loop power control parameter index to be applied to the first time interval for each UL signal type, or an open-loop power control parameter index to be applied to the first time interval for each PUSCH grant type (e.g., DG-PUSCH, type 1 CG-PUSCH, type 2 CG-PUSCH) and / or PUCCH format, together with the configuration of the first time resource.Such an approach (e.g., where a specific open loop power control parameter index is indicated along with the SBFD configuration) may be useful if the UE performs repetitions over the first and second time resources (e.g., SBFD / non-SBFD UL slots) before receiving the dedicated configuration.

[0216] In addition, when notifying the UE of the location of the SBFD slot, the open-loop power control parameter index signaled together can be updated later via RRC / MAC-CE / DCI, etc. This can be advantageous in terms of scheduling flexibility of the gNB. For example, when a UL signal for which repeated transmission is set is repeatedly transmitted through a first time resource and a second time resource, the UE can apply the open-loop power control index set by a conventional method (e.g., a UL transmission power control method according to a conventional scenario defined unrelated to SBFD operation, a method defined in TS 38.213) to the UL signal transmitted on the second time resource (e.g., a non-SBFD slot), and can apply the separately set / indicated specific open-loop power control parameter index to the UL signal for the first time resource (e.g., an SBFD slot). In this case, the gNB can reuse the value itself according to the index for the existing OLPC (e.g., the open-loop power control parameter index) to differently allocate the transmit power for the UL signal in the first time resource and the transmit power for the UL in the second time resource.

[0217] Alternatively, when the UE receives information about the first time resource and the second time resource from the gNB, the UE may be separately instructed of a cell-specific OLPC value (a nominal power value for OLPC) to be applied to a specific time resource (e.g., the first time resource), and may apply the separately instructed cell-specific OLPC value to the specific time resource. For example, even if the same open-loop power control parameter index is configured for the first time resource and the second time resource, the UE may apply different values ​​(e.g., a nominal power value for OLPC) to each time resource. For example, when transmitting a UL signal in an SBFD UL slot, the power offset(s) to be applied may be instructed as multiple values ​​that are subdivided for each UL signal (e.g., PUSCH, PUCCH, SRS, PRACH), or may be instructed as a common value for the UL signal. The UE may include the instructed offset value in the open-loop power control regardless of the open-loop power control parameter index. In addition, the UE may also consider summing the open-loop power control value reflecting the indicated offset value when transmitting a UL signal in the SBFD UL slot. For example, in the existing OLPC, the nominal power is provided through a cell-specific parameter, and the SBFD time interval may be common (or cell common) within the cell. In this case, the OLPC including the index of the transmission occasion may be considered to be limited to the nominal power only. For example, in the case of PUSCH, the OLPC parameter corresponding to the nominal power, P O_NOMINAL_PUSCH,f,c (j) is replaced by PO_NOMINAL_PUSCH,f,c,new(j), and the relationship between these two is 'PO_NOMINAL_PUSCH,f,c,new(j) = P O_NOMINAL_PUSCH,f,c (j) + P offset ' can be defined as. At this time, P offsetThe value of may be a value that the gNB indicates to the UE as described above. For example, if the transmission opportunity is a non-SBFD slot, P offset 0 is applied, and in case of SBFD slot, the power offset value set in advance by gNB to UE can be applied.

[0218] Alternatively, as another method of applying different values ​​even for the same open-loop power control parameter index, the value mapped to the power control parameter index for the OLPC index can be defined as multiple values ​​rather than a single value. In this case, the UE can decide which of the two values ​​to select depending on the transmission opportunity to transmit. For example, in the case of PUSCH, P is determined according to the slot type (e.g., SBFD slot, non-SBFD slot) for the nominal power. O_NOMINAL_PUSCH,f,c Different values ​​can be applied for (j). For example, the gNB can set two values ​​for the index for p0-NominalWithoutGrant, p0-NominalWithGrant, and the UE can select / apply one of the two values ​​depending on whether it is an SBFD / non-SBFD slot. Or, in case of PUSCH, P can be set for UE-specific power depending on the slot type (e.g., SBFD slot, non-SBFD slot). O_UE_PUSCH,b,f,c(j) can be applied differently. For example, the gNB can set two p0 values ​​to the UE according to p0-PUSCH-AlphaSetId, which is an index of p0-PUSCH-Alpha, and the UE can select and apply one value from among multiple values ​​(e.g., multiple p0 values) indicated by prior agreement depending on whether the transmission opportunity is an SBFD slot or a non-SBFD slot. In the case of PUSCH, in order to apply the method described above, it is necessary to assume that the UE is in an RRC connected state when the open loop power control index j is 1 (e.g., CG-PUSCH) or 2 (e.g., DG-PUSCH). However, in order to apply the case where j = 0, it must be done even before the RRC connected state (e.g., RRC idle state, RRC inactive state), so it must be assumed that the UE receives the configuration of the SBFD / non-SBFD slot from the gNB in ​​the SIB1 stage. For example, in the case where j is 0, in order to provide two p0 values ​​according to p0-PUSCH-AlphaSetId, which is an index of p0-PUSCH-Alpha, the two P0 values ​​need to be provided through SIB1. Accordingly, the configuration of the SBFD / non-SBFD slot in which the two P0 values ​​are provided together also needs to be provided through SIB1. For example, when the configuration method of the first time resource and the second time resource of the gNB is transmitted to the UE in the SIB1 stage, the above-described methods (e.g., providing two p0 values ​​according to p0-PUSCH-AlphaSetId, which is an index of p0-PUSCH-Alpha, etc.) can be applied.

[0219] Alternatively, another method for the UE to receive and apply different power control parameters for each time resource may be as follows. The UE may separately operate / set closed loop power control parameters (CLPC) for the first time resource and the second time resource. For example, the UE may apply a TPC command received in the DL of the first time resource to the CLPC for UL transmission of the first time resource, and may apply a TPC (Transmit power control) command received in the DL of the second time resource to the CLPC for UL transmission of the second time resource. When considering existing multiple TRP PUSCH / PUCCH power controls, the UE may be instructed to receive, manage, and apply values ​​for CLPC by TRP (Transmission Reception Point) and by time resource (first time resource, second time resource). The existing UE operation may receive a TPC command from the gNB through DCI format 2_2 or DCI format 2_3 and apply it to the CLPC. The UE may be instructed by RRC signaling (tpc-Accumulation in SRS-Config, tpc-Accumulation in PUSCH-powercontrol) whether to apply the values ​​(e.g., values ​​indicated by a TPC command) by accumulating them or applying them as absolute values ​​for PUSCH and / or SRS, and may always apply the values ​​(e.g., values ​​indicated by a TPC command) by accumulating them for PUCCH. In this context, the UE may separately operate CLPC for transmission of UL signals in SBFD slots and for non-SBFD slots.Alternatively, even if the UE is instructed to perform CLPC from the gNB (e.g., even if it is instructed with a TPC command), the UE may apply the CLPC performance instruction only to UL signals transmitted in non-SBFD slots and not apply the CLPC performance instruction to UL signals transmitted in SBFD slots. For example, the UE may determine that CLPC is always 0 for UL signals transmitted in SBFD UL slots and apply the TPC command instructed by the gNB only to transmission of UL signals in non-SBFD UL slots. Alternatively, the UE may consider separately managing the TPC command received in the SBFD DL slot and the TPC command received in the non-SBFD DL slot. For example, the UE may apply a TPC command received in DCI in an SBFD DL slot only to UL transmission in the SBFD UL slot, and may apply a TPC command received in DCI in a non-SBFD DL slot only to UL transmission in the non-SBFD UL slot.

[0220] Alternatively, when the UE receives information about the first time resource and the second time resource from the gNB, the UE may separately designate Pcmax for a specific time resource. In this case, the UE may separately report the power headroom report (PHR) of the UL signal for the first time resource and the PHR of the UL signal for the second time resource to the gNB. For example, since the non-SBFD slot and the SBFD slot have different interference situations and performance impacts due to them, it may be desirable for the base station to independently set and operate the Pcmax value and PHR report between the non-SBFD slot and the SBFD slot in order to control / manage interference situations through power control. For example, the gNB may set the maximum transmit power (e.g., Pcmax) that can be transmitted in the SBFD slot to a UE that can perform transmission (or, repeated transmission) of a UL signal / channel across the non-SBFD slot and the SBFD slot. Alternatively, the UE may derive the maximum transmit power in the SBFD slot based on the maximum transmit power in the non-SBFD slot reported to the gNB according to a prior agreement or promise. If the calculated transmit power for the UL signal / channel transmitted in the SBFD slot exceeds the maximum transmit power set for the SBFD slot, the UE may transmit the UL signal at the maximum transmit power that can be transmitted in the SBFD slot. Accordingly, the UE may separately calculate the PHR for the UL signal / channel in the SBFD slot and the UL signal / channel in the non-SBFD slot, and the PHR in the SBFD slot may be calculated by the difference between the maximum transmit power in the SBFD slot and the transmit power in the SBFD slot derived through calculation.

[0221] Alternatively, when the UE receives information about the first time resource and the second time resource from the gNB, the UE may set and apply a Pcmin value for a specific time resource. Here, Pcmin may mean the minimum transmission power when the UE transmits in the specific time resource. For example, since the SBFD slot is a time resource in which the gNB performs DL and UL simultaneously, UL reception in the specific time resource may require the allocation of high transmission power to the UE to overcome self-interference. Accordingly, the gNB sets the Pcmin to be applied when the UE transmits a UL signal in the SBFD slot to the UE, and the UE may transmit a UL signal by replacing the transmission power with Pcmin when the value calculated according to the transmission power is smaller than Pcmin.

[0222] Alternatively, the UE may determine (transmit power) differently based on the time resource where the transmission opportunity is located for the reference signal for pathloss compensation. For example, the transmission power for the transmission of the UL signal of the first time resource and the second time resource can be derived based on the downlink reference signal measured by the UE in the first time resource and the second time resource, respectively. The pathloss compensation (or pathloss compensation value) set for determining the UL transmission power of the existing UE can be derived as a value obtained by subtracting the higher layer filtered RSRP from the set reference signal power. In this case, the UE can determine the reference signal power as follows depending on whether periodic CSI-RS reception is set. If periodic CSI-RS reception is not configured from the gNB, the UE can set the ss-PBCH-Blockpower of ServingCellConfigCommon or ServingCellConfigCommonSIB configured by RRC signaling from the gNB as the reference signal power. If periodic CSI-RS reception is configured, the UE can derive the reference signal power by adding ss-PBCH-BlockPower and powerControlOffsetSS configured for NZP-CSI-RS-Resource. In this case, the path loss compensation (or path loss compensation value) can be derived as a value obtained by subtracting a higher layer filtered RSRP from the derived reference signal power, and the value of the higher layer filtered RSRP can be derived using a reference serving cell defined in a given scenario (e.g., 3GPP TS 38.215) and a higher layer filter configuration described in QuantityConfig configured for the reference serving cell.Against this backdrop, the UE may derive the path loss (or path loss estimate) for the DL in different ways for each of the SBFD slot and the non-SBFD slot. Specifically, when the UE derives the downlink path loss for determining the transmit power of the UL signal transmitted in the SBFD slot, the UE may consider the reference signal power calculated by adding a specific offset set by the gNB in ​​RRC / MAC-CE / DCI, etc. to ss-PBCH-BlockPower. For example, when the UE calculates the downlink path loss associated with the UL signal located in the SBFD slot, the UE may base it on the reference signal power derived by adding a specific offset (e.g., powerControlOffsetSBFD) to the reference signal power used for calculating the downlink path loss for the UL signal located in the non-SBFD slot. Here, the specific offset (e.g., powerControlOffsetSBFD) may be indicated in RRC / MAC-CE / DCI, etc. This powerControlOffsetSBFD indication may be indicated together when the gNB indicates the location of the SBFD slot to the UE. In addition (or in a separate way), a UE configured for periodic CSI-RS reception from the gNB may consider the following when the CSI-RS is received in an SBFD slot. The value of powerControlOffsetSS set in NZP-CSI-RS-Resource for the periodic CSI-RS transmitted in the SBFD slot may not always be used as the reference signal power for deriving the transmit power of the UL signal, as in the conventional operation. For example, the value of powerControlOffsetSS may be applied only when the transmission opportunity of the UL signal is an SBFD UL slot (or a non-SBFD UL slot).At this time, the UE may also set the reference signal for measuring the higher layer filtered RSRP to calculate the final downlink path loss estimation differently for non-SBFD slots and SBFD slots. For example, if the UE calculates the path loss by deriving the reference signal power by applying the value of powerControlOffsetSS, the UE may also use the corresponding NZP-CSI-RS-Resource as the reference signal for measuring the higher layer filtered RSRP. Alternatively, if the UE calculates the path loss by deriving the reference signal power without applying the value of powerControlOffsetSS, the UE may maintain the existing operation of using SSB as the reference signal for measuring the higher layer filtered RSRP. However, for the UL signal transmitted intra-repetition, the UE may calculate the downlink path loss based on SSB in the case of an SBFD slot, and based on NZP-CSI-RS-Resource in the case of a non-SBFD slot. Alternatively, when calculating path loss to determine the transmission power of a UL signal transmitted in an SBFD slot, the index of the reference signal for path loss estimation between the SBFD slot and the non-SBFD slot may be set differently. For example, the UE may consider using the NZP-CSI-RS-Resource or SSB received in the SBFD DL slot for path loss estimation when the transmission opportunity is an SBFD UL slot for a UL signal transmitted repeatedly according to a prior agreement, and using the NZP-CSI-RS-Resource or SSB received in the non-SBFD DL slot for path loss estimation when the transmission opportunity is a non-SBFD UL slot.This method may be convenient when the UE is configured with all SBFD DL slots, non-SBFD DL slots, SBFD UL slots, and non-SBFD UL slots, and may be useful when UL and DL are channel reciprocal, but the path loss in the SBFD slot may not be the same as the path loss in the non-SBFD slot.

[0223] (2) Method 2

[0224] In method 2, the UE may be instructed to set one set of power control parameters from the gNB without being configured with different sets of power control parameters for the first time resource and the second time resource, and may apply the power control parameters instructed by the gNB to the first time resource and determine the uplink power according to a pre-agreed rule for the second time resource.

[0225] For example, in the case of a UL signal / channel transmitted in a non-SBFD slot, the UE can determine the transmission power according to the gNB's instruction and configured parameters based on the existing uplink transmission power calculation method. In the case of a UL signal / channel transmitted in an SBFD slot, the uplink transmission power may be determined by a predetermined rule rather than according to the gNB's indication. Alternatively, in the case of a UL signal / channel transmitted in a non-SBFD slot, the UE can determine the transmission power according to the gNB's instruction and configured parameters based on the existing uplink transmission power calculation method, but in the case of a UL signal / channel transmitted in an SBFD slot, the uplink transmission power may be determined by a predetermined rule for some of the existing uplink transmission power calculation methods. Here, specific methods of the predetermined rules are described in detail in Methods 2-1, 2-2, and 2-3 below. Methods 2-1, 2-2, and 2-3 described below have the advantage of simplifying power control of specific time resources from the gNB's perspective, thereby enabling the gNB to set / allocate transmission power in a more predictable and manageable manner, and minimizing additional settings for transmission to different time resources from the UE's perspective.

[0226] (1) Method 2-1

[0227] For Method 2-1, or the UE may not apply some of the power control parameters applied to the second time resource to the transmission for the first time resource. Or, the UE may not apply some of the power control parameters applied to the first time resource to the transmission for the second time resource.

[0228] For example, the UE may apply CLPC only to certain time resources and not to other time resources. More specifically, the UE may apply CLPC indicated by the existing method (indicated via DCI format 2_2 and / or DCI format 2_3) to UL signals / channels transmitted in non-SBFD slots, and the UE may always set CLPC to 0 for UL signals / channels transmitted in SBFD slots. Alternatively, the UE may apply OLPC only to certain time resources and not to other time resources. For example, the UE may apply OLPC indicated by the existing method to UL signals / channels transmitted in non-SBFD slots, and the UE may always set OLPC to 0 for UL signals / channels transmitted in SBFD slots.

[0229] (2) Method 2-2

[0230] For method 2-2, the UE sets power control parameters through instructions from the gNB for the first time resource, but may apply default values ​​for some of the power control parameters for the second time resource.

[0231] Here, the application of the default value may be to apply a value to a parameter that is predetermined by a prior definition or agreement rather than a value indicated by the gNB. For example, the UE may apply the index of the open-loop power control parameter indicated by the gNB when transmitting on the first time resource (or the second time resource), and may apply an index of a fixed open-loop power control parameter (e.g., an index defined as a default value in advance) for the second time resource (or the first time resource). For example, the UE may transmit a PUSCH / PUCCH / SRS configured / scheduled by the gNB. In this case, the UE may apply a specific index (e.g., a lowest index or a highest index among the indices of the open-loop power control parameters, etc.) by prior agreement when the transmission of the PUSCH / PUCCH / SRS is located in the SBFD slot. This method can ultimately suppress CLI that may occur to other UEs receiving DL in the SBFD slot by setting the transmit power of the UE for the SBFD slot to be smaller than that of the non-SBFD slot, or can improve the reception performance of the UL signal at the gNB by setting the transmit power of the UE for the SBFD slot to be higher.

[0232] (3) Method 2-3

[0233] In method 2-3, the UE receives a configuration for an UL signal based on transmission to a first time resource from the gNB, derives a configuration for transmission to a second time resource by prior agreement, and can set uplink power for transmission to the first time resource and transmission to the second time resource based on the derived different configurations.

[0234] For example, the UE does not receive a separate configuration for UL transmission in the first time resource or the second time resource from the gNB, but receives the configuration for transmission in the first time resource, and when the first time resource and the second time resource are configured, derives the configuration for transmission in the second time resource and performs transmission. In other words, the UE does not receive the configuration, such as resource allocation, for the first time resource, but can derive / estimate the allocation corresponding to the first time resource based on the configuration, such as resource allocation, for the second time resource. For example, the UE does not independently determine the PRB resource for each of the first time resource (or SBFD slot / symbol) and the second time resource (e.g., non-SBFD symbol / slot), but can use the PRB allocation information for one time resource to derive the PRB allocation for the other time resource. In this case, the amount of resources actually used may be determined differently depending on the symbol / slot type, and the difference between the first time resource and the second time resource may be can be applied differently. That is, resource allocation for PUSCH in SBFD slots is not separately set, and only resource allocation for PUSCH transmission for non-SBFD slots can be received. In this case, the UE can determine PRBs for transmitting PUSCH in SBFD slots from resource allocation for PUSCH transmission for non-SBFD slots according to specific rules or preset rules.

[0235] (3) Method 2-4

[0236] In method 2-4, the UE may calculate the UL signal transmission power for the first time resource by adding a specific offset based on the UL signal transmission power for the second time resource. Alternatively, the UE may calculate the UL signal transmission power for the first time resource by adding a specific offset based on the UL signal transmission power for the first time resource. Here, the specific offset may be set via RRC / MAC-CE / DCI, etc.

[0237] For example, the UE determines the transmit power of the UL signal by receiving from the gNB an offset to be applied compared to the transmit power of the UL signal for the first time resource when transmitting on the first time resource. For example, the UE may be configured with a specific offset for determining the transmit power of the UL signal for the second time resource from the gNB, or may apply the specific offset to the transmit power of the UL signal for the first time resource to determine the transmit power of the UL signal for the second time resource. Alternatively, the UE may be configured with a specific offset for determining the transmit power of the UL signal for the first time resource from the gNB, and may apply the specific offset to the transmit power of the UL signal for the second time resource to determine the transmit power of the UL signal for the first time resource. As a method for setting the specific offset, the UE may receive multiple applicable candidate offset values ​​from the gNB via RRC signaling, and may be instructed to select a specific value from among the multiple candidate values ​​via MAC-CE / DCI. This method may be a method that takes into account the self-interference cancellation performance limitations of the gNB when boosting the UL transmission power in the SBFD slot compared to the UL transmission power in the non-SBFD slot, or when de-boosting the UL transmission power in the SBFD slot compared to the UL transmission power in the non-SBFD slot in preparation for the occurrence of UE-to-UE CLI.For example, the gNB may determine / indicate a specific positive value among a plurality of offset values ​​as the specific offset value in consideration of the self-interference cancellation performance limitation of the gNB, or may determine / indicate a specific negative value among a plurality of offset values ​​as the specific offset value in preparation for the occurrence of UE-to-UE CLI (e.g., when determining the UL transmit power in the first time resource by applying a specific offset to the UL transmit power in the second time resource). The specific offset may be provided to the UE together with information about the first time resource and the second time resource when the UE is provided with the information, and may be updated with MAC-CE / DCI, etc.

[0238] 2. Proposal 2

[0239] For Proposal 2, even if the UE is capable of transmitting a single configuration for UL signals across the first and second time resources, it may perform the default operation without performing transmission across the first and second time resources under certain conditions. Alternatively, even if the UE is capable of transmitting a single configuration for UL signals across the first and second time resources, it may perform the default operation by restricting transmission across the first and second time resources under certain conditions.

[0240] For example, the UE may have notified the gNB of its capability report that it can perform repeated transmissions of UL signals / channels, or multiple transmissions other than repeated transmissions, across the first and second time resources based on a single configuration, or may have the capability for such repeated transmissions even in the absence of such capability report. In this case, if the gNB has instructed transmission of UL signals / channels across the first and second time resources, the UE may perform a default operation other than transmission across the first and second time resources if a specific condition is satisfied. Here, the specific condition may be that the UE has not received a configuration for transmission across the first and second time resources (e.g., a configuration for downlink reference signals such as SSB and periodic CSI-RS required for pathloss calculation for each time resource) or a specific parameter (e.g., a power offset for transmission on the first and second time resources) from the gNB. Alternatively, the above specific condition may mean that the UE has semi-statically set information on the first time resource and the second time resource from the gNB, but the first time resource is indicated as UL or flexible through dynamic scheduling or an indication of an SFI (slot format indicator).

[0241] If the above specific condition is satisfied, the UE can perform the following default actions. First, the UE can transmit the configured UL signal only in the first time resource or the second time resource. For example, even if the UE can (repeatedly) transmit the uplink signal / channel across the SBFD slot and the non-SBFD slot, it can be considered / determined that it will be configured / instructed to transmit the uplink signal / channel only in the non-SBFD slot if the above specific condition is satisfied. As described above, the above specific condition may be that the gNB does not configure all of the downlink reference signals required for path loss calculation for each of the SBFD slot and the non-SBFD slot to the UE, or does not configure the SSB or CSI-RS located in the SBFD downlink slot required for path loss calculation in the SBFD slot, or does not configure the power offset for determining the transmit power when transmitting in the SBFD slot.

[0242] Alternatively, when the above specific condition is satisfied, another default operation of the UE may be as follows. For example, the UE may always determine all time resources or the time resources for which the above specific condition occurs as the second time resource (or the first time resource) based on the configuration of the first time resource and the second time resource received from the gNB, and transmit UL signals. Alternatively, when a semi-statically indicated SBFD slot is indicated as a UL slot or a flexible slot by dynamic scheduling or by an SFI indication, the UE may assume / determine that the SBFD slot is indicated as a non-SBFD slot, and transmit UL signals / channels in the semi-statically indicated SBFD slot according to the configuration of the transmit power for the non-SBFD slot.

[0243] FIG. 11 is a diagram for explaining a method for a UE to determine the transmission power of an uplink signal.

[0244] The UE may be an SBFD-aware UE capable of recognizing the SBFD operation / behavior of the base station. The UE may have UL transmission power set differently between the first time resource, which is an SBFD time resource, and the second time resource, which is a non-SBFD time resource, as described in the above-mentioned proposals 1 to 3. For example, even when the UE repeatedly transmits a UL signal through the first time resource and the second time resource, the transmission power of the UL signal in the first time resource and the transmission power in the second time resource may be allocated / set differently. Meanwhile, even if the contents described below are not explicitly described, the methods proposed in the above-mentioned proposals 1 to 3 can naturally be applied to what will be described later.

[0245] Referring to FIG. 11, a UE may receive configuration information for setting a first time resource related to sub-band full duplex (SBFD) (S111). As described above, the first time resource may be a resource for a time period during which the base station performs SBFD operation. The UE may receive the configuration information through SIB1 of the base station, and as described above, may also receive power control parameters related to UL transmission in the first time resource through the configuration information.

[0246] Next, the UE can determine the transmission power for the uplink signal based on a set of power control parameters related to the uplink signal (S113). Here, the set of power control parameters can be configured to be divided into a first control parameter set for the first time resource and a second control parameter set for a second time resource not related to the SBFD. For example, as described above, the UE can be configured with a first control parameter set for determining the UL transmission power in the first time resource and a second control parameter set for determining the UL transmission power in the second time resource. For example, when the uplink signal is an uplink signal to be transmitted in the first time resource, the UE can determine / allocate the transmission power of the UL signal based on the first control parameter set. Alternatively, when the uplink signal is an uplink signal to be transmitted in the second time resource, the UE can determine / allocate the transmission power of the UL signal based on the second control parameter set. Here, the first control parameter set and the second control parameter set may provide / set different values ​​for at least one parameter among the power control parameters of the uplink signal. Meanwhile, the remaining parameters, excluding the at least one parameter among the power control parameters, may be values ​​shared for power determination of the UL signal in the first time resource and the UL signal in the second time resource.

[0247] For example, as described above, the UE may be provided with a value related to a path loss parameter for the first time resource (e.g., an alpha value) through a first control parameter set, and may be provided with a value related to a path loss parameter for the second time resource (e.g., an alpha value or p0-PUSCH-Alpha) through a second control parameter set. For example, the UE may separately set values ​​related to path loss parameters corresponding to each of the first time resource and the second time resource. Alternatively, the UE may set a value of a parameter related to determining a nominal power for the first time resource through the first control parameter set, and may be provided with a value of a parameter related to determining a nominal power for the second time resource through the second control parameter set. Here, the parameter related to the nominal power and decision may be at least one of p0-NominalWithGrant, p0-nominal, p0-NominalWithGrant, and p0-NominalWithoutGrant. Alternatively, the UE may receive an OLPC (Open Loop Power Control) parameter index for the first time resource through a first control parameter set, and may receive an OLPC (Open Loop Power Control) parameter index for the second time resource through a second control parameter set. In this case, the first control parameter set may provide an OLPC parameter index for the first time resource according to the type of the UL signal (e.g., PUSCH, PUCCH, SRS, etc.).

[0248] Alternatively, with respect to CLPC, the UE may receive downlink control information (DCI) including a TPC command from the base station. In this case, the UE may determine a time resource on which CLPC according to the TCP command is to be performed among the first time resource and the second time resource based on a time resource on which the DCI is received. For example, if the DCI is received on the first time resource, the TPC command may be applied to determine the transmission power of an uplink signal for the first time resource. Alternatively, if the DCI is received on the second time resource, the TPC command may be applied to determine the transmission power of an uplink signal for the second time resource.

[0249] Next, the UE can transmit an uplink signal to the base station with the determined transmission power allocated thereto (S115). The uplink signal can be repeatedly transmitted through the first time resource and the second time resource as described above, and can be transmitted with different transmission powers between the first time resource and the second time resource based on the first control parameter set and the second control parameter set.

[0250] FIG. 12 is a diagram for explaining a method for a base station to set a set of power control parameters for controlling the transmission power of an uplink signal.

[0251] Referring to FIG. 12, the base station may receive configuration information for setting a first time resource related to sub-band full duplex (SBFD) (S121). As described above, the first time resource may be a resource for a time period during which the base station performs SBFD operation. The base station may provide the configuration information to the UE via SIB1. In addition, as described above, power control parameters related to UL transmission in the first time resource may also be provided through the configuration information.

[0252] Next, the base station can transmit information on a power control parameter set related to the uplink signal (S123). At this time, the power control parameter set can be configured to be divided into a first control parameter set for the first time resource and a second control parameter set for the second time resource not related to the SBFD. For example, as described above, the base station can provide the UE with the first control parameter set for determining the UL transmission power in the first time resource through the SIB1 or the like, and can provide the UE with the second control parameter set for determining the UL transmission power in the second time resource through signaling separate from the first control parameter set. Meanwhile, as described above, the second control parameter set can be at least one of the power control parameters for uplink power control that were previously provided regardless of the SBFD (3GPP TS 38.213, 3GPP TS 38.214, see FIG. 8; hereinafter, referred to as a default power control parameter set). Here, the first control parameter set and the second control parameter set may provide / set different values ​​for at least one parameter among the power control parameters of the uplink signal. Meanwhile, the remaining parameters, excluding the at least one parameter among the power control parameters, may be values ​​shared for power determination of the UL signal in the first time resource and the UL signal in the second time resource.

[0253] For example, as described above, the base station can separately set a value (e.g., an alpha value or p0-PUSCH-Alpha) related to a path loss parameter from among a default power control parameter set (or, among a plurality of default power control parameters included in the default power control parameter set) for each of the first time resource and the second time resource. For example, the base station can provide a value (e.g., an alpha value) related to a path loss parameter for the first time resource through the first control parameter set, and can provide a value (e.g., an alpha value) related to a path loss parameter for the second time resource through the second control parameter set. Alternatively, the base station can separately set a value of a parameter related to determining a nominal power from among a plurality of default power control parameters included in the default power control parameter set for each of the first time resource and the second time resource. For example, the base station may provide values ​​of parameters related to determining nominal power for the first time resource through the first control parameter set, and may provide values ​​of parameters related to determining nominal power for the second time resource through the second control parameter set. Here, the parameters related to determining nominal power may be at least one of p0-NominalWithGrant, p0-nominal, p0-NominalWithGrant, and p0-NominalWithoutGrant. Alternatively, the base station may separately set an OLPC (Open Loop Power Control) parameter index among a plurality of default power control parameters included in a default power control parameter set for each of the first time resource and the second time resource.For example, the base station may provide an OLPC (Open Loop Power Control) parameter index for the first time resource through a first control parameter set, and an OLPC (Open Loop Power Control) parameter index for the second time resource through a second control parameter set. In this case, the first control parameter set may provide an OLPC parameter index for the first time resource according to the type of the UL signal (e.g., PUSCH, PUCCH, SRS, etc.).

[0254] Alternatively, in relation to CLPC, the base station may transmit DCI (downlink control information) including a TPC command to the UE. In this case, the base station may designate a time resource to which the TCP command is to be applied among the first time resource and the second time resource, depending on the time resource on which the DCI is transmitted. For example, if the DCI is received in the first time resource, the TPC command may be applied to determine the transmission power of an uplink signal for the first time resource. Alternatively, if the DCI is received in the second time resource, the TPC command may be applied to determine the transmission power of an uplink signal for the second time resource.

[0255] Next, the base station can receive an uplink signal whose power is controlled based on the first power parameter set and / or the second power parameter set from the UE (S125)

[0256] In this way, the proposed invention can set the UL transmission power that effectively reflects the characteristics of the SBFD slot and the non-SBFD slot by configuring the power control parameters differently between the SBFD slot and the non-SBFD slot. Alternatively, the proposed invention can appropriately control the boosting or deboosting of the transmission power of the UL signal in the SBFD slot according to the channel environment. Alternatively, the proposed invention can alleviate the degradation of the UL signal reception quality of the gNB due to the SIC performance limit by relatively boosting the transmission power of the UL signal in the SBFD slot more than in the non-SBFD slot, or can effectively alleviate the occurrence of CLI between UEs by relatively deboosting the transmission power of the UL signal in the SBFD slot than in the non-SBFD slot.

[0257] Examples of communication systems to which the invention applies

[0258] Although not limited thereto, the various descriptions, functions, procedures, proposals, methods and / or operational flowcharts of the present invention disclosed in this document may be applied to various fields requiring wireless communication / connection (e.g., 5G) between devices.

[0259] Hereinafter, more specific examples will be provided with reference to the drawings. In the drawings / descriptions below, the same drawing reference numerals may represent identical or corresponding hardware blocks, software blocks, or functional blocks, unless otherwise described.

[0260] Figure 13 illustrates a communication system applied to the present invention.

[0261] Referring to FIG. 13, a communication system (1) applied to the present invention 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.

[0262] 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).

[0263] 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 invention.

[0264] Examples of wireless devices to which the present invention is applied

[0265] Figure 14 illustrates a wireless device applicable to the present invention.

[0266] Referring to FIG. 14, 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). Here, {the first wireless device (100), the second wireless device (200)} can correspond to {the wireless device (100x), the base station (200)} and / or {the wireless device (100x), the wireless device (100x)} of FIG. 13.

[0267] 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 / chipset designed to implement 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 the present invention, a wireless device may also mean a communication modem / circuit / chipset.

[0268] According to one example, the first wireless device or UE (100) may include a processor (102) and a memory (104) connected to the RF transceiver. The memory (104) may include at least one program capable of performing operations related to the embodiments described in FIGS. 8 to 12.

[0269] Specifically, the processor (102) controls the RF transceiver (106) to receive configuration information for setting a first time resource associated with sub-band full duplex (SBFD), and determines a transmission power for the uplink signal based on a set of power control parameters associated with the uplink signal. Here, the set of power control parameters may be divided into a first control parameter set for the first time resource and a second control parameter set for a second time resource not associated with the SBFD.

[0270] Alternatively, a processing device including a processor (102) and a memory (104) may be configured. In this case, the processing device may include at least one processor; and at least one memory connected to the at least one processor and storing instructions, wherein the instructions, based on being executed by the at least one processor, cause the UE (100) to: receive configuration information for setting a first time resource related to sub-band full duplex (SBFD), and determine a transmission power for the uplink signal based on a set of power control parameters related to the uplink signal. Here, the set of power control parameters may be divided into a first control parameter set for the first time resource and a second control parameter set for a second time resource not related to the SBFD.

[0271] Alternatively, a non-transitory computer-readable storage medium having recorded thereon instructions for performing the proposed methods described with reference to FIGS. 8 to 12 may be configured.

[0272] 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 the present invention, a wireless device may also mean a communication modem / circuit / chip.

[0273] According to one example, the second wireless device or base station (200) may include a processor (202) and a memory (204) connected to the RF transceiver. The memory (204) may include at least one program capable of performing operations related to the embodiments described in FIGS. 9 to 12.

[0274] Specifically, the processor (202) controls the transceiver (206) or the RF transceiver to transmit configuration information for setting a first time resource related to SBFD (sub-band full duplex), transmit information on a set of power control parameters for controlling power of an uplink signal, and receive the uplink signal. Here, the set of power control parameters can be divided into a first control parameter set for the first time resource and a second control parameter set for a second time resource not related to the SBFD.

[0275] 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.

[0276] One or more processors (102, 202) may be referred to as a controller, a microcontroller, a microprocessor, or a microcomputer. 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 one or more processors (102, 202). The descriptions, functions, procedures, proposals, methods, and / or operational 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 configured to perform 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.

[0277] 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.

[0278] 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.

[0279] Examples of wireless devices to which the present invention is applied

[0280] Figure 15 illustrates another example of a wireless device applicable to the present invention. The wireless device may be implemented in various forms depending on the use case / service.

[0281] Referring to FIG. 15, the wireless device (100, 200) corresponds to the wireless device (100, 200) of FIG. 14 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) of FIG. 15. For example, the transceiver(s) (114) may include one or more transceivers (106, 206) and / or one or more antennas (108, 208) of FIG. 14. 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 operation of the wireless device. For example, the control unit (120) may control the electrical / mechanical operation of the wireless device based on the program / code / command / information stored in the memory unit (130). In addition, the control unit (120) may 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).

[0282] 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. 13, 100a), a vehicle (Fig. 13, 100b-1, 100b-2), an XR device (Fig. 13, 100c), a portable device (Fig. 13, 100d), a home appliance (Fig. 13, 100e), an IoT device (Fig. 13, 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. 13, 400), a base station (Fig. 13, 200), a network node, etc. Wireless devices may be mobile or stationary depending on the use / service.

[0283] In FIG. 15, 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.

[0284] Here, the wireless communication technology implemented in the wireless device (XXX, YYY) of the present specification may include not only LTE, NR, and 6G, but also Narrowband Internet of Things for low-power communication. At this time, for example, NB-IoT technology may be an example of LPWAN (Low Power Wide Area Network) technology, and may be implemented with standards such as LTE Cat NB1 and / or LTE Cat NB2, and is not limited to the above-described names. Additionally or alternatively, the wireless communication technology implemented in the wireless device (XXX, YYY) of the present specification may perform communication based on LTE-M technology. At this time, for example, LTE-M technology may be an example of LPWAN technology, and may be called by various names such as eMTC (enhanced Machine Type Communication). For example, LTE-M technology can be implemented by at least one of various standards such as 1) LTE CAT 0, 2) LTE Cat M1, 3) LTE Cat M2, 4) LTE non-BL (non-Bandwidth Limited), 5) LTE-MTC, 6) LTE Machine Type Communication, and / or 7) LTE M, and is not limited to the above-described names. Additionally or alternatively, the wireless communication technology implemented in the wireless device (XXX, YYY) of the present specification can include at least one of ZigBee, Bluetooth, and Low Power Wide Area Network (LPWAN) considering low-power communication, and is not limited to the above-described names. For example, ZigBee technology can create PAN (personal area networks) related to small / low-power digital communication based on various standards such as IEEE 802.15.4, and can be called by various names.

[0285] The embodiments described above are combinations of components and features of the present invention in a predetermined form. Each component or feature should be considered optional unless explicitly stated otherwise. Each component or feature may be implemented without being combined with other components or features. Furthermore, it is also possible to form an embodiment of the present invention by combining some components and / or features. The order of operations described in the embodiments of the present invention may be changed. Some components or features of one embodiment may be included in another embodiment or may be replaced with corresponding components or features of another embodiment. It is self-evident that claims that do not have an explicit citation relationship in the patent claims may be combined to form an embodiment or may be incorporated as a new claim through a post-application amendment.

[0286] In this document, embodiments of the present invention have been described primarily focusing on the signal transmission and reception relationship between a terminal and a base station. This transmission and reception relationship is equally / similarly extended to signal transmission and reception between a terminal and a relay or a base station and a relay. Certain operations described as being performed by a base station in this document may, in some cases, be performed by its upper node. That is, it is obvious that various operations performed for communication with a terminal in a network composed of multiple network nodes including a base station may be performed by the base station or other network nodes other than the base station. The base station may be replaced by terms such as fixed station, Node B, eNode B (eNB), and access point. In addition, the terminal may be replaced by terms such as UE (User Equipment), MS (Mobile Station), MSS (Mobile Subscriber Station).

[0287] Embodiments of the present invention may be implemented by various means, for example, hardware, firmware, software, or a combination thereof. In the case of hardware implementation, an embodiment of the present invention may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, etc.

[0288] When implemented via firmware or software, an embodiment of the present invention may be implemented in the form of modules, procedures, functions, etc. that perform the functions or operations described above. The software code may be stored in a memory unit and executed by a processor. The memory unit may be located within or outside the processor and may exchange data with the processor via various known means.

[0289] It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the scope of the invention. Therefore, the above detailed description should not be construed as limiting in any respect, but rather as illustrative. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the scope of equivalents of the present invention are intended to be included within the scope of the present invention.

[0290] The embodiments of the present invention as described above can be applied to various mobile communication systems.

Claims

1. In the method using UE (User Equipment), A step of receiving configuration information for setting a first time resource related to SBFD (sub-band full duplex); and A step of determining a transmission power for an uplink signal based on a set of power control parameters associated with the uplink signal; A method wherein the above power control parameter set is divided into a first control parameter set for the first time resource and a second control parameter set for a second time resource not related to the SBFD.

2. In paragraph 1, Based on the above uplink signal being a signal for the first time resource, the transmission power of the uplink signal is determined based on the first control parameter set, A method, characterized in that the transmission power of the uplink signal is determined based on the second control parameter set, based on the uplink signal being a signal for the second time resource.

3. In paragraph 1, A method, characterized in that the above power control parameter set is divided into the first control parameter set and the second control parameter set for parameters related to path loss.

4. In paragraph 1, A method, characterized in that the above power control parameter set is divided into the first power control parameter set and the second control parameter set with respect to parameters related to determination of nominal power.

5. In paragraph 4, A method, characterized in that the parameters related to the above nominal power and decision are at least one of p0-NominalWithGrant, p0-nominal, p0-NominalWithGrant and p0-NominalWithoutGrant.

6. In paragraph 1, A method, characterized in that the power control parameter set is divided into the first control parameter set and the second control parameter set with respect to the OLPC (Open Loop Power Control) parameter index.

7. In paragraph 6, A method, characterized in that the first control parameter set indicates the OLPC parameter index according to the type of the uplink signal.

8. In paragraph 1, Further comprising a step of receiving DCI (downlink control information) including a TPC (transmit power control) command from a base station; Based on the DCI received in the first time resource, the TPC command is applied to determine the transmission power of the uplink signal for the first time resource, A method, characterized in that, based on the DCI received in the second time resource, the TPC command is applied to determine the transmission power of the uplink signal for the second time resource.

9. In paragraph 1, A method, characterized in that the above setting information includes the first control parameter set and is received through SIB1 (system information block1).

10. In paragraph 1, A method, characterized in that the uplink signal is repeatedly transmitted through the first time resource and the second time resource.

11. A non-transitory computer-readable storage medium recording commands for performing the method described in paragraph 1.

12. In UE (User Equipment), RF (Radio Frequency) transmitter and receiver; and A processor connected to the RF transceiver, The processor controls the RF transceiver to receive configuration information for setting a first time resource related to sub-band full duplex (SBFD), and determines a transmission power for the uplink signal based on a set of power control parameters related to the uplink signal, The above power control parameter set is divided into a first control parameter set for the first time resource and a second control parameter set for the second time resource not related to the SBFD, UE.

13. In a processing device that controls UE (User Equipment), at least one processor; and At least one memory connected to said at least one processor and storing instructions, said instructions being executed by said at least one processor, wherein said UE: Receive configuration information for setting a first time resource related to SBFD (sub-band full duplex), and determine transmission power for the uplink signal based on a set of power control parameters related to the uplink signal, A processing device, wherein the above power control parameter set is divided into a first control parameter set for the first time resource and a second control parameter set for a second time resource not related to the SBFD.

14. In the method by the base station, A step of transmitting configuration information for setting a first time resource related to SBFD (sub-band full duplex); A step of transmitting information about a set of power control parameters for controlling the power of an uplink signal; and comprising a step of receiving the above uplink signal; A method wherein the above power control parameter set is divided into a first control parameter set for the first time resource and a second control parameter set for a second time resource not related to the SBFD. 15.RF(Radio Frequency) transmitter and receiver; and A processor connected to the RF transceiver, The processor controls the RF transceiver to transmit configuration information for setting a first time resource related to SBFD (sub-band full duplex), transmit information about a set of power control parameters for controlling the power of an uplink signal, and receive the uplink signal. A base station, wherein the above power control parameter set is divided into a first control parameter set for the first time resource and a second control parameter set for a second time resource not related to the SBFD.

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