Method and device for performing communication in wireless communication system

Abstract

A method and a device for performing communication in a wireless communication system according to various embodiments are disclosed. The device may receive at least one measurement report configuration, and count the number of active reference signal resources in an active bandwidth part (BWP) on the basis of the at least one measurement report configuration.

Description

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

[0001] This relates to a method for a terminal 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 is to provide a method for terminals to transmit and receive signals 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 at least one measurement report configuration; and counting a number of active reference signal resources in an active Bandwidth Part (BWP) based on the at least one measurement report configuration; wherein the number of active reference signal resources can be counted based on a CSI-RS (Channel State Information-Reference Signal) resource and a CLI (Cross Link Interference) measurement resource associated with the at least one measurement report configuration.

[0007] Alternatively, based on one CLI measurement resource being referred M times by at least one measurement report setting, the number of active reference signal resources is counted M times for one CLI measurement resource.

[0008] Alternatively, based on one CLI measurement resource being referred to M times by at least one measurement report setting, the number of active reference signal resources is counted once for the one CLI measurement resource.

[0009] Alternatively, based on the fact that one CLI measurement resource is referenced M times greater than a certain maximum value by at least one measurement report setting, the number of active reference signal resources is counted as much as the maximum value for the one CLI measurement resource.

[0010] Alternatively, the CLI measurement resource includes an SRS-RSRP (Sounding Reference Signal-Reference Signal Received Power) resource and a CLI-RSSI (Received Signal Strength Indicator) resource, and the number of active reference signal resources is counted for the SRS-RSRP resource and not counted for the CLI-RSSI resource.

[0011] Alternatively, the number of active reference signal resources is counted for aperiodic CLI measurement resources and semi-permanent CLI measurement resources, and is not counted for periodic CLI measurement resources.

[0012] Alternatively, the method further includes a step of reporting capability information on the maximum number of active measurement resources that can be activated within the active BWP, wherein the maximum number of active measurement resources is determined by considering both the CSI-RS resource and the CLI measurement resource.

[0013] Alternatively, the UE is characterized in that it expects that no more than the maximum number of active measurement resources will be activated within the active BWP.

[0014] Alternatively, the UE is characterized in that it performs a measurement report based on the number of the counted active reference signal resources and the maximum number of the active measurement resources.

[0015] According to another aspect, at least one non-transitory computer-readable storage medium having recorded thereon instructions for performing the method by the UE described above may be provided.

[0016] According to another aspect, a UE performing the above-described method may be provided.

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

[0018] A method by a base station according to another aspect includes the steps of: receiving capability information on a maximum number of measurement resources in an active Bandwidth Part (BWP); and transmitting at least one measurement report configuration for a measurement report based on the capability information; wherein the at least one measurement report configuration configures a plurality of Channel State Information-Reference Signal (CSI-RS) resources and Cross Link Interference (CLI) measurement resources, and among the plurality of CSI-RS resources and CLI measurement resources, a number of CSI-RS resources and CLI measurement resources equal to or less than the maximum number can be configured in the active BWP.

[0019] According to another aspect, a base station performing the above-described method may be provided.

[0020] Various embodiments enable the terminal to transmit and receive signals accurately and efficiently.

[0021] 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.

[0022] 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.

[0023] Figure 1 shows the structure of an LTE system.

[0024] Figure 2 shows the structure of the NR system.

[0025] Figure 3 shows the structure of a radio frame of NR.

[0026] Figure 4 shows the slot structure of an NR frame.

[0027] FIG. 5 is a diagram for explaining physical channels that can be used in various embodiments and a signal transmission method using the same.

[0028] Figure 6 illustrates a process in which a terminal transmits ACK / NACK via PUSCH.

[0029] Figure 7 shows an example of a CSI-related procedure.

[0030] Figure 8 is a diagram for explaining a method of performing full duplex operation in an NR system.

[0031] FIG. 9 and FIG. 10 are diagrams for explaining SBFD (sub-band full duplex) and SFFD (single frequency full duplex) operations.

[0032]

[0033] Figure 11 is a diagram illustrating a method for a UE to count the number of active measurement resources.

[0034] Figure 12 is a diagram illustrating a method for a UE to count the number of active measurement resources.

[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. 2 exemplifies a case including only a gNB. 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 reception of a physical downlink control channel signal and / or a physical downlink shared channel signal (S17) and transmission of 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) as a general uplink / downlink signal transmission procedure.

[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 successful or unsuccessful reception of a 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] Beam Management (BM)

[0124] 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.

[0125] - Beam measurement: An operation in which a BS or UE measures the characteristics of a received beamforming signal.

[0126] - Beam determination: An operation in which a BS or UE selects its own transmit beam (Tx beam) / receive beam (Rx beam).

[0127] - Beam sweeping: An operation of covering a spatial domain using transmit and / or receive beams over a predetermined time interval in a predetermined manner.

[0128] - Beam report: An operation in which a UE reports information about a beamformed signal based on beam measurement.

[0129] 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.

[0130] 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.

[0131] 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).

[0132] Full duplex operation for NR

[0133] FIGS. 8 to 10 are drawings for explaining a method of performing full duplex operation in an NR system.

[0134] 5G is giving rise to new service types, such as XR (Extended Reality), AI-based services, and autonomous vehicles. 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.

[0135] Referring to Fig. 8, a method of applying full-duplex operation in an intra-carrier is illustrated. Specifically, the full-duplex operation may be considered as a subband-wise full duplex (SB-FD) method (e.g., SBFD method) illustrated in Fig. 8 (a) and a spectrum-sharing full duplex (SS-FD) method (e.g., SSFD method) illustrated in Fig. 8 (b).

[0136] 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. For example, DL and UL can be assigned the same or overlapping frequency resources for the same time resource.

[0137] 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.

[0138] Specifically, referring to FIG. 9, 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. 9 (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. 9 (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.

[0139] 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.

[0140] In the case of full-duplex (hereinafter, FD) operation as described above, FD operation can be performed from both the perspective of gNB and UE. For example, gNB can perform simultaneous transmission and reception of DL / UL using the same or different frequency resources in the same time resource. Alternatively, only gNB can perform FD operation (in the same time resource), and UE can perform HD operation. gNB can perform simultaneous transmission and reception of DL and UL using the same or different frequency resources in the same time resource, but UE can perform only DL reception or UL transmission in a specific time resource. In this case, gNB can perform FD operation in a way that performs DL transmission and UL reception for different UEs at the same time point (or, same time resource).

[0141] 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.

[0142] 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 (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 (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 it transmits and receives at the same time, while in all cases, it is assumed that the gNB transmits and receives at the same time.

[0143] 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.

[0144] First, SBFD can be considered as shown in Figs. 9 (a) and 10 (a). Specifically, referring to Fig. 9 (a), SBFD operation can 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 can be TDM'd with each other. Alternatively, referring to Fig. 10 (a), a subband region of a DL and a subband region of an UL may not overlap with 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 a slot configuration).

[0145] Alternatively, SFFD may be considered as examples such as those in FIG. 9 (b) and FIG. 10 (b). Specifically, referring to FIG. 9 (b), SFFD operation may be performed based on a resource pattern of a cell or a base station. Alternatively, referring to FIG. 10 (b), the subband region of the DL and the subband region of the UL may overlap with each other. For example, in the resource pattern, a half-duplex (HD) slot / symbol and an SBFD slot / symbol may be TDM'd with each other.

[0146] When considering the FDR operation of the gNB in ​​both SBFD and SFFD, Self-interference (SI) may be the most essential factor to consider. The transmit power of the base station is relatively higher than the transmit power of the UE. Therefore, from the receiving perspective of the gNB performing FDR, the power level of the SI is likely to be higher than the received power level of the signal transmitted by the UE. In this regard, the introduction of a high level of SI suppression may be essential. Meanwhile, interference may occur not only when the gNB transmits and receives DL and UL at the same time and frequency, but also when the frequency gap between the UL and DL is not sufficient even when the gNB uses different frequencies for DL ​​and UL at the same time. SI suppression methods need to be applied in both of the above-mentioned cases.

[0147] L1 CLI measurement resource counting method

[0148] Against this backdrop, the introduction of L1 / L2 CLI measurement / report was discussed in the Rel-18 DE study and described in TR 38.858 as a candidate technology for CLI handling in DE. However, specific methods or details have not been discussed. Therefore, the introduction of L1 / L2 CLI measurement / report is likely motivated by the following. First, CLI resource changes are necessary due to SBFD / non-SBFD configurations. Since the periodicity of the CLI measurement resource may not always match the periodicity of the SBFD / non-SBFD slot, separate CLI measurement resources that match these will be required. In particular, if SBFD / non-SBFD CLI resources are not separated as separate resources, the following problem arises in addition to the flexibility of resource configuration: Since the CLI resource in the SBFD slot will be smaller than that in the non-SBFD slot, the RSSI (dBm) will vary significantly even in the same CLI environment, but the threshold for existing event-triggered reports is indicated as a single value. The RSSI will be even more different in different CLI environments. Additionally, to apply CLI suppression / avoidance schemes (e.g., spatial domain / coordinated scheduling), gNBs must be aware of the CLI environment in a timely manner.

[0149] In addition, it was described that L1 / L2 CLI measurement / report can be performed by reusing the existing CSI framework. In this context, the L1 / L2 CLI based CSI framework can consider the following approach. A method of adding a setting for CLI to the CSI report configuration (e.g., P / SP / A CLI-RSSI resource / SRS resource, report quantity (CLI-RSSI, SRS-RSRP)) can be considered. That is, when the UE receives the CSI report configuration from the gNB, it can receive it by adding a setting for CLI measurement / report to such configuration. At this time, if the UE indicates a report configuration ID including or for CLI, the UE reports the measurement result in the indicated resource to UCI. Alternatively, in addition, it can be considered that an event-triggered CLI report is reported to L1 / L2 signaling. Existing CLIs report to the gNB via L3 signaling when a threshold is exceeded for a configured measurement resource. However, the gNB must quickly understand the UE's CLI environment to apply CLI handling / suppression techniques to reduce the CLI experienced by the UE. Therefore, it is possible to reuse the same mechanism for reporting when a threshold is exceeded for a pre-configured measurement resource, but consider signaling only that report via L1 / L2.

[0150] For convenience of description, the resource for channel measurement set in the CSI report configuration is called CMR, and the resource for interference measurement is called IMR. For example, among the parameters defined in CSI-ReportConfig of TS 38.331, resourceForChannelMeasurement is called CMR, csi-IM-ResourcesForInterference, and nzp-CSI-RS-ResourcesForInterference are called IMR.

[0151] Existing CLI measurements / reporting up to Rel-17 were performed event-triggered (e.g., when RSSI exceeds a certain threshold) or periodically (120ms to 30min). For example, existing CLI measurements / reporting measure and report RSSI using CLI-RSSI (Received Signal Strength Indicator) resources, or measure and report RSRP (Reference Signal Received Power) using SRS (Sounding Reference Signal). Here, when considering the SBFD operation of the gNB, changes to CLI resources may be required according to SBFD / non-SBFD configurations. This is because the periodicity of the CLI measurement resource and the periodicity of the SBFD / non-SBFD slot may not always match. Therefore, separate CLI measurement resources that match the two periodicities may be required. In contrast, if SBFD / non-SBFD CLI resources are not separated as separate resources, the following problems arise in addition to the flexibility of resource configuration. Since the CLI resources of SBFD slots will be smaller than those of non-SBFD slots, RSSI (dBm) may be very different even in the same CLI environment, but the threshold for existing event-triggered reporting is indicated by a single value (RSSI between SBFD slots and non-SBFD slots may be even more different in different CLI environments). For applying CLI suppression / avoidance schemes (e.g., spatial domain / coordinated scheduling), gNB needs to be aware of the CLI environment in a timely manner. In this regard, UE's CLI measurement report may be reported via L1 / L2 (layer1 / layer2) signaling and may require enhancement.Such enhancements may consider L1 / L2 CLI measurement / reporting based on the framework in which existing UEs report CSI.

[0152] A simple approach that could be considered when utilizing the CSI reporting framework (e.g., when L1 / L2 CLI reporting to UCI based on the CSI framework is introduced) could be to define L1 / L2 CLI and legacy BM (beam management) / CSI as separate reports, without mixing them. This could be done similarly to the reporting configuration for L1 triggered mobility, which is configured as a separate reporting configuration from BM and / or CSI, where L1 / L2 CLI could also operate as a separate reporting configuration from BM and / or CSI (e.g., CLI reporting could operate as a separate reporting configuration from CSI reporting). Alternatively, to ensure scheduling flexibility of the gNB, the reporting configuration of CSI could also indicate CLI measurement resources (e.g., CLI measurement reporting reusing the CSI framework). In this case, it may be considered to add new measurement metrics for CLI measurements (e.g., L1-CLI-RSSI, L1-SRS-RSRP, etc.) to the reporting configuration of CSI. In addition, L1 / L2 CLI reporting can be triggered in two main ways, separately from this method. First, there may be gNB-indicated CLI reporting, where L1 / L2 reporting of the UE is performed by gNB's instruction, and L1 / L2 CLI reporting triggered based on newly defined events for L1 / L2 CLI reporting.

[0153] Multiple options were proposed to specify L1-based CLI measurements that reuse the CSI framework in a given scenario (RAN1#116bis), and whether these options will be supported will be determined in a future scenario (RAN1#117 meeting). The relevant agreements for the given scenario (RAN1#116bis) are shown in Table 5 below.

[0154] AgreementConsider the following alternatives for down selection in RAN1#117.Alt.1:If L1 based UE-to-UE CLI measurement and reporting based on existing CSI framework are supported for UE-to-UE CLI handling, the following are recommended to be specified- Measurement resourceso Periodic, semi-persistent, or aperiodic measurement resource (set) i.e., SRS-RSRP resource or CLI-RSSI resource- Measurement reportingo Periodic, semi-persistent or aperiodic reporting on PUCCH / PUSCHo New report quantities: e.g L1-SRS-RSRP, L1-CLI-RSSI and / or RS indexeso UCI bits generationo UCI omission ruleo Priority rules for multiple CSI reportingo CSI processing unit and CPU occupation ruleo Timeline and related UE behaviors- CLI measurement accuracy requirement [RAN4]Alt.2:If L1 based UE-to-UE CLI measurement and reporting based on existing CSI framework are supported for UE-to-UE CLI handling, the following are recommended to be specified- Measurement resourceso Periodic, semi-persistent, or aperiodic measurement resource (set), i.e., CLI-IMR- Measurement reportingo CSI measurement procedure integrating CLI measuremento Note: Reuse the existing periodic, semi-persistent and aperiodic reporting on PUCCH / PUSCHo Note: Reuse the existing report quantities, i.e., CQI, L1-SINR, and the new measurements on CLI-IMR are included in the interference measurement term for the existing report quantitiesAlt.3:If L1 based UE-to-UE CLI measurement and reporting based on existing CSI framework are supported for UE-to-UE CLI handling, the following are recommended to be specified- Measurement resourceso Periodic, semi-persistent, or aperiodic measurement resource (set) i.e., SRS-RSRP resource or CLI-RSSI resource or CLI-IMR- Measurement reportingo Periodic, semi-persistent or aperiodic reporting on PUCCH / PUSCHo New report quantities: e.g. L1-SRS-RSRP, L1-CLI-RSSI and / or RS indexeso UCI bits generationo UCI omission ruleo Priority rules for multiple CSI reportingo CSI processing unit and CPU occupation ruleo Timeline and related UE behaviorso CSI measurement procedure integrating CLI measurement- CLI measurement accuracy requirement [RAN4]Note: The new measurements on CLI-IMR are included in the interference measurement term for the existing report quantities, i.e., CQI, L1-SINR.

[0155] L1-based CLI measurements that reuse the CSI framework defined / specified by the above methods can be treated as a new type of CSI report. For example, from the UE's perspective, a specific CSI report may be a CLI report, and since this specific CSI report is a (new) report that did not exist before, the UE's operation for the specific CSI report needs to be newly / additionally defined. In this regard, the existing CSI framework may refer to the CSI reporting operation of the existing UE, and the UE operation and report settings related thereto are described in detail in the given scenarios (3GPP TS 38.214, 3GPP TS 38.213, 3GPP TS 38.331), etc. Among the contents related to the above given scenarios, the conditions related to the number of active CSI-RS resources within the active BWP are defined as shown in Table 6 below.

[0156] In any slot, the UE is not expected to have more active CSI-RS ports or active CSI-RS resources in active BWPs than reported as capability. NZP CSI-RS resource is active in a duration of time defined as follows. For aperiodic CSI-RS, starting from the end of the PDCCH containing the request and ending at the end of the scheduled PUSCH containing the report associated with this aperiodic CSI-RS. When the PDCCH candidates are associated with a search space set configured withsearchSpaceLinkingId, for the purpose of determining the NZP CSI-RS resource active duration, the PDCCH candidate that ends later in time among the two linked PDCCH candidates is used. For semi-persistent CSI-RS, starting from the end of when the activation command is applied, and ending at the end of when the deactivation command is applied. For periodic CSI-RS, starting when the periodic CSI-RS is configured by higher layer signalling, and ending when the periodic CSI-RS configuration is released.If a CSI-RS resource is referred N times by one or more CSI Reporting Settings not configured with higher layer parametercsi-ReportSubConfigList, the CSI-RS resource and the CSI-RS ports within the CSI-RS resource are counted N times.For a CSI-RS Resource Set for channel measurement configured with two Resource Groups and N Resource Pairs, if a CSI-RS resource is referred X times by one of the M CSI-RS resources, where M is defined in clause 5.2.1.4.2, and / or one or two Resource Pairs, the CSI-RS resource and the CSI-RS ports within the CSI-RS resource are countedXtimes.For aCSI-ReportConfigcontaining a list ofLsub-configuration(s) provided by higher layer parametercsi-ReportSubConfigList,if a CSI-RS resource is referred by M sub-configurations among N triggered sub-configurations for CSI reporting for aperiodic CSI-RS resource, orLconfigured sub-configurations for CSI reporting for periodic or semi-persistent CSI-RS resource, the CSI-RS resource is countedMtimes and the CSI-RS ports within the CSI-RS resource are counted. , wherePis the number of ports configured bynrofPortsand Ps is the number of CSI-RS ports ins-th sub-configuration fromMsub-configurations derived from the corresponding antenna port subset indicator [port-subsetIndicator] according to clause 5.2.1.4.2 if configured, otherwise P S=P.For a periodic or semi-persistent CSI-RS resource in a CSI-RS resource set for channel measurement linked to aCSI-ReportConfigconfigured with the higher layer parametercodebookTypeset to 'typeII-Doppler-r18' or 'typeII-Doppler-PortSelection-r18', the CSI-RS resource and the CSI-RS ports within the CSI-RS resource are counted K P times, where the value of is indicated by UE capability.

[0157] Hereinafter, it can be assumed that the gNB instructs the UE to set different time resources (e.g., a first time resource, a second time resource) that perform different characteristic operations. Here, the first time resource may be a time interval (hereinafter, SBFD slot) in which the gNB performs an SBFD operation, and the second time resource may be a time interval (hereinafter, non-SBFD slot) in which the gNB performs a non-SBFD operation. Alternatively, the first time resource may be a time interval in which the gNB performs an SFFD operation, and the second time resource may be a time interval in which the gNB performs a non-SFFD operation. Hereinafter, for convenience of explanation, the first time resource, the second time resource, and / or the SBFD slot and the non-SBFD slot will be used together for explanation.

[0158] In addition, when the UE communicates with a gNB performing SBFD operation, the downlink usable PRB described below may refer to a downlink subband used in a time period in which the gNB performs SBFD operation, and the uplink usable PRB may refer to an uplink subband used in a time period in which the gNB performs SBFD operation. Alternatively, the downlink usable PRB may refer to a group of RBs included in an active DL BWP, and the uplink usable PRB may refer to a group of RBs included in an active UL BWP. In this regard, the agreement discussed in a given scenario (RAN1#116) is as shown in Tables 7 and 8 below.

[0159] For discussion purpose, UL subband frequency resources within active UL BWP are called UL usable PRBs and DL subband(s) frequency resources within active DL BWP are called DL usable PRBs.For determining UL / DL usable PRBs, consider the following options.- Option 1: UL usable PRBs are determined as intersection between cell-specific UL subband and active UL BWP in SBFD symbols. DL usable PRBs are determined as intersection between cell-specific DL subband(s) and active DL BWP in SBFD symbols.- Option 2: UL / DL usable PRBs are explicitly configured within active UL / DL BWP in SBFD symbols.For SBFD-aware UE transmission and reception in the SBFD symbols configured in DL and / or flexible in TDD-UL-DL-ConfigCommon,- UL transmissions within UL usable PRBs are allowed- FFS SSB symbols- DL receptions within DL usable PRBs are allowed- UL transmissions outside UL usable PRBs are not allowed- DL receptions outside DL usable PRBs are not allowed- This restriction is not applicable for CLI measurementCLI measurement behaviours for SBFD-aware UE are discussed in agenda item 9.3.3.RAN1 to discuss SBFD aware UE behaviors in SBFD symbols with interaction with legacy TDD slot configuration indications via TDD-UL-DL-ConfigDedicated and SFI in DCI format 2_0- DCI format 2_0 cannot be used to revert SBFD symbol to non-SBFD symbol.

[0160] UL subband frequency resources within active UL BWP are called UL usable PRBs and DL subband(s) frequency resources within active DL BWP are called DL usable PRBs. For determining UL / DL usable PRBs, consider the following options. UL usable PRBs are determined as intersection between cell-specific UL subband and active UL BWP in SBFD symbols. DL usable PRBs are determined as intersection between cell-specific DL subband(s) and active DL BWP in SBFD symbols.In RAN1#116 meeting, it was agreed that for RRC connected mode UEs, at least cell-specific configuration on time and frequency (working assumption) location of SBFD subbands is supported within a TDD carrier. One remaining issue point is whether / how to additionally support of UE-specific configuration on time and / or frequency location of SBFD subbands. In this section, UE specific configuration on frequency location of SBFD subband is discussed.The main motivation of supporting UE specific configuration on frequency location of SBFD subband on top of cell specific configuration on frequency location of SBFD subbands is to support different guardbands due to different UE capabilities and / or UE-to-UE CLI mitigation.In macro cell deployment scenario, UE-to-UE CLI from aggressor UE with higher transmission power could affect to DL performance degradation if DL frequency resources adjacent UL subband are assigned. If severe CLI level is reported, gNB may indicate additional UE specific configuration on frequency location to reduce DL usable PRB. If UE determines the size of DL usable PRB according to the additional UE specific configuration, UE may apply the size of DL usable PRB depending on the type of DL signal / channels within a BWP.

[0161] Among the measurement resources configured for CLI reporting, a UE may newly introduce measurement resources for directly performing CLI measurements (e.g., Periodic / Semi-permanent / Aperiodic SRS-RSRP resources, Periodic / Semi-permanent / Aperiodic CLI-RSSI resources, etc.). In this case, since the CSI reporting framework is (re)used even for CLI reporting, it is necessary to determine / define whether the measurement resources introduced for the CLI measurement should be included in the counting of active resources or whether separate counting is required. In the following, a method for performing active resource counting for measurement resources configured for CLI reporting that (re)uses the CSI framework is described in detail against this background.

[0162] Hereinafter, L1-CLI reporting may refer to CLI reporting that reuses the CSI reporting framework or is reported based on the CSI reporting framework. Furthermore, the existing method for determining the activation period below may be reused when counting activated measurement resources. For example, the content defined in Table 9 may be interpreted by replacing CSI-RS and NZP CSI-RS as measurement resources for L1 CLI reporting.

[0163] For aperiodic CSI-RS, starting from the end of the PDCCH containing the request and ending at the end of the scheduled PUSCH containing the report associated with this aperiodic CSI-RS. When the PDCCH candidates are associated with a search space set configured withsearchSpaceLinkingId, for the purpose of determining the NZP CSI-RS resource active duration, the PDCCH candidate that ends later in time among the two linked PDCCH candidates is used. For semi-persistent CSI-RS, starting from the end of when the activation command is applied, and ending at the end of when the deactivation command is applied. For periodic CSI-RS, starting when the periodic CSI-RS is configured by higher layer signalling, and ending when the periodic CSI-RS configuration is released.

[0164] 1. 제안 1

[0165] The measurement resources introduced for CLI measurement and reporting that reuse the CSI framework in Proposal 1 (hereinafter, CLI measurement resources) can be included in the counting of active CSI-RS ports or active CSI-RS resources in an active BWP. This is because CLI measurement resources are resources used for CSI reporting. In this case, regardless of the type of CLI measurement resource, they can all be applied to the counting of active CSI-RS resources (or measurement resources).

[0166] For example, when CLI measurement resources (e.g., periodic / semi-persistent / aperiodic CLI-RSSI resources and / or periodic / semi-persistent / aperiodic SRS-RSRP resources, etc.) are introduced for CLI measurements and reporting that reuse the CSI framework, the CLI resources may be included in the CSI reporting framework even if they are used for L1-CLI reporting. Accordingly, all of the CLI resources may be counted as active CSI-RS ports or active CSI-RS resources in an active BWP. The following examples may be considered for specific counting methods.

[0167] - For example, a single CLI measurement resource may be referenced N times across multiple CSI reporting configurations. In this case, a single CLI measurement resource may be counted N times. This method is identical to the existing counting method for CSI-RS resources, and may be an appropriate method for L1-CLI reporting, as it reuses the CSI reporting framework.

[0168] - Alternatively, if a single CLI measurement resource is referenced N times in multiple CSI reporting configurations, the single CLI measurement resource may be counted once. This may be an appropriate method, considering that the number of CSI-RSs reported by the UE through capability signaling is for the measurement resources that can be measured for the maximum CSI report, even if the L1-CLI report uses the CSI reporting framework.

[0169] - Alternatively, if one CLI measurement resource is referenced N times in multiple CSI reporting configurations, the UE may count the one CLI measurement resource N (or 1) times and determine that the maximum value is X. Here, the maximum value may be a value reported through capability signaling that the UE reports to the gNB, or a value determined / defined in advance. This method may be an appropriate method considering that the UE can perform (CLI) measurement when it is FDM'd with PDSCH / PDCCH according to the UE capability for the existing L3 CLI measurement.

[0170] 2. Proposal 2

[0171] Proposal 2 considers that CLI measurement resources are resources used for CSI reporting, and thus can be included in the counting of active CSI-RS ports or active CSI-RS resources in an active BWP. However, unlike Proposal 1, in Proposal 2, whether CLI measurement resources are counted or not may vary depending on the type of CLI measurement resource.

[0172] For example, CLI-RSSI resources (periodic / semi-persistent / aperiodic) and / or SRS-RSRP resources (periodic / semi-persistent / aperiodic) may be defined / configured as CLI measurement resources. In this case, for CLI measurement resources of one type among the CLI-RSSI resources and SRS-RSRP resources, they may be counted as active CSI-RS ports or active CSI-RS resources for an active BWP, but for CLI measurement resources of the other types, they may not be counted as active CSI-RS ports or active CSI-RS resources in an active BWP. For example, periodic / semi-persistent / aperiodic SRS-RSRP resources (e.g., newly introduced measurement resources for CLI measurements including sequences) may be counted (treated) as active CSI-RS ports or active CSI-RS resources in the active BWP, and periodic / semi-persistent / aperiodic CLI-RSSI resources (e.g., newly introduced measurement resources for CLI measurements not including sequences) may not be counted as active CSI-RS ports or active CSI-RS resources in the active BWP. This may be an appropriate approach in that newly introduced resources for L1-CLI reporting may have similar properties to CSI-RS when they include sequences.

[0173] For example, specific counting methods for newly introduced CLI measurement purpose measurement resources (e.g., SRS-RSRP resources) that are counted as active CSI-RS ports or active CSI-RS resources in an active BWP may be considered as examples below.

[0174] - For example, a single CLI measurement resource may be referenced N times across multiple CSI reporting configurations. In this case, a single CLI measurement resource may be counted N times. This method is identical to the existing counting method for CSI-RS resources, and may be an appropriate method for L1-CLI reporting, as it reuses the CSI reporting framework.

[0175] - Alternatively, if a single CLI measurement resource is referenced N times in multiple CSI reporting configurations, the single CLI measurement resource may be counted once. This may be an appropriate method, considering that the number of CSI-RSs reported by the UE through capability signaling is for the measurement resources that can be measured for the maximum CSI report, even if the L1-CLI report uses the CSI reporting framework.

[0176] - Alternatively, if one CLI measurement resource is referenced N times in multiple CSI reporting configurations, the UE may count the one CLI measurement resource N (or 1) times and determine that the maximum value is X. Here, the maximum value may be a value reported through capability signaling that the UE reports to the gNB, or a value determined / defined in advance. This method may be an appropriate method considering that the UE can perform (CLI) measurement when it is FDM'd with PDSCH / PDCCH according to the UE capability for the existing L3 CLI measurement.

[0177] 3. Proposal 3

[0178] In Proposal 3, the UE may compute the active CSI-RS ports or active CSI-RS resources within the existing active BWP for newly introduced CLI measurement resources for CLI measurements, such as SRS-RSRP or CLI-RSSI, but may (additionally) apply separate rules.

[0179] (1) Proposal 3-1

[0180] CLI measurement resources, even if they are resources used for CSI reporting, may not be included in the counting of active CSI-RS ports or active CSI-RS resources in an active BWP. This is because, considering that CSI-IM is not included in the counting when counting existing active CSI-RS ports or active CSI-RS resources in an active BWP, it may be appropriate not to count CLI measurements, which are interference measurements.

[0181] (2) Proposal 3-2

[0182] Even though CLI measurement resources are resources used for CSI reporting, considering that they are resources for CLI measurement, only some (or some types) of CLI measurement resources may be counted as active CSI-RS ports or active CSI-RS resources.

[0183] The number of resources that can be configured for the UE for the existing L3-based CLI measurement can be {8, 16, 32, 64} for CLI-RSSI measurement resources depending on the UE capability, and {4, 8, 16, 32} for SRS-RSRP resources for SRS-RSRP measurement depending on the UE capability. In this case, both the CLI-RSSI measurement resources and the SRS-RSRP measurement resources can be periodic resources with periodicity. However, when the CLI measurement resources are introduced as CLI-RSSI measurement resources and SRS-RSRP measurement resources with periodic / semi-permanent / aperiodic characteristics in L1 CLI measurement and reporting, the following matters need to be considered.

[0184] For example, the UE may not include periodic CLI-RSSI measurement resources and periodic SRS-RSRP measurement resources configured for L1-CLI reporting from the gNB in ​​the active CSI-RS resources, but may determine the configured semi-persistent / aperiodic CLI-RSSI measurement resources and semi-persistent / aperiodic SRS-RSRP measurement resources as active CSI-RS ports or active CSI-RS resources. This may be appropriate when considering that periodic resources for existing L3-based CLI reporting can also be used for L1-CLI reporting. In this case, when determining the CLI measurement resources as active CSI-RS ports or active CSI-RS resources, the method described in Proposal 1 or Proposal 2 may be applied, as in the example below.

[0185] - For example, if a single CLI measurement resource is referenced N times in multiple CSI reporting configurations, the single CLI measurement resource can be counted N times. This is the same as the counting method of existing CSI-RS resources, and may be appropriate because L1-CLI reporting reuses the CSI reporting framework.

[0186] - Alternatively, if a single CLI measurement resource is referenced N times in multiple CSI reporting configurations, the single CLI measurement resource may be counted once. This may be an appropriate method, considering that the number of CSI-RSs reported by the UE through capability signaling is for the measurement resources that can be measured for the maximum CSI report, even if the L1-CLI report uses the CSI reporting framework.

[0187] - Alternatively, if one CLI measurement resource is referenced N times in multiple CSI reporting configurations, the UE may count the one CLI measurement resource N (or 1) times and determine that the maximum value is X. Here, the maximum value may be a value reported through capability signaling that the UE reports to the gNB, or a value determined / defined in advance. This method may be an appropriate method considering that the UE can perform (CLI) measurement when it is FDM'd with PDSCH / PDCCH according to the UE capability for the existing L3 CLI measurement.

[0188] (3) Proposal 3-3

[0189] In Proposal 3-3, the UE can report to the gNB, via UE capability signaling, information about the number (or maximum number) of active CLI measurement resources that can be configured within an active BWP. In this case, the UE can expect that fewer CLI measurement resources will be activated / configured than the number reported by the gNB via capability signaling.

[0190] The maximum number of active CLI measurement resources for L1-CLI reporting that the UE reports to the gNB through capability signaling may vary by resource type. For example, if L1-SRS-RSRP resources and L1-CLI-RSRP resources are introduced as CLI measurement resources, the UE may report to the gNB the maximum number of active BWPs that can be configured for each of the L1-SRS-RSRP resources and L1-CLI-RSRP resources. This is in consideration of the fact that the number of resources that can be configured for each of the L1-SRS-RSRP resources and L1-CLI-RSRP resources in L3-based CLI reporting is different.

[0191] Alternatively, considering the time domain behavior of the resources, the UE may report capability information to the gNB about the maximum number of resources that can be configured in the active BWP for each resource type and each time domain behavior via capability signaling. For example, the UE may report to the gNB the (maximum) number of active resources that can be configured in the active BWP for each of periodic SRS-RSRP resources for L1-CLI reporting, semi-persistent SRS-RSRP resources for L1-CLI reporting, and aperiodic SRS-RSRP resources for L1-CLI reporting, respectively. And / or, the UE may report to the gNB the (maximum) number of active resources that can be configured in the active BWP for each of periodic CLI-RSSI resources for L1-CLI reporting, semi-persistent CLI-RSSI resources for L1-CLI reporting, and aperiodic CLI-RSSI resources for L1-CLI reporting, respectively.

[0192] In this case, the counting method of the active CLI measurement resource can be applied by the method described in Proposal 1 or Proposal 2. For example, if one CLI measurement resource is referenced N times in multiple CSI reporting configurations, the one CLI measurement resource can be counted N times. This is the same as the counting method of the existing CSI-RS resource, and may be appropriate because L1-CLI reporting reuses the CSI reporting framework. Alternatively, if one CLI measurement resource is referenced N times in multiple CSI reporting configurations, the one CLI measurement resource can be counted once. This method may be appropriate when considering that the number of CSI-RSs reported by the UE through capability signaling is for the measurement resources that can be measured for the maximum CSI reporting, even if L1-CLI reporting uses the CSI reporting framework. Alternatively, if a single CLI measurement resource is referenced N times in multiple CSI reporting configurations, the UE may count the single CLI measurement resource N (or 1) times and determine that the maximum value is X. Here, the maximum value may be a value reported through capability signaling that the UE reports to the gNB, or a value determined / defined in advance. This method may be an appropriate method considering that the UE can perform (CLI) measurement when it is FDM'd with PDSCH / PDCCH according to the UE capability for the existing L3 CLI measurement.

[0193] Figure 11 is a diagram illustrating a method for a UE to count the number of active measurement resources.

[0194] As described above, the CLI reporting configuration for L1 CLI measurements can be configured for the UE by reusing the CSI framework. However, since the CSI framework is defined for CSI-RS measurements / reporting, some changes to the CSI framework may be required with the introduction of the CLI reporting configuration as described above. For example, when counting active CSI-RS ports or active CSI-RS resources related to the existing CSI reporting configuration, it is necessary to consider not only CSI-RS resources but also CLI measurement resources. Hereinafter, the method by which the UE counts the number of active reference signal resources (or active reference signal ports) will be described again based on the contents described in the section "L1 CLI measurement resource counting method."

[0195] Referring to FIG. 11, the UE may transmit capability information about the maximum number of measurement resources (or the maximum number of measurement resources) that can be measured or activated within an active BWP to the base station (S111). For example, the UE may determine the maximum number of measurement resources that can be measured within the activated BWP by considering its own measurement capability, etc., and report capability information including information about the determined maximum number of measurement resources to the base station. Here, the UE may determine the maximum number of active measurement resources by considering not only the number of CSI-RS resources but also the number of CLI measurement resources. Alternatively, the UE may additionally report capability information about the maximum number (X) that can be referred to for one measurement resource to the base station.

[0196] Next, the UE may receive from the base station at least one measurement report configuration for CSI and / or CLI measurement reporting (S113). As described above, the at least one measurement report configuration may configure not only CSI-RS resources for CSI reporting as measurement targets to be measured by the UE, but also CLI measurement resources for CLI reporting. For example, the at least one measurement report configuration may include a measurement report configuration for CSI measurement and reporting, and a measurement report configuration for CLI measurement and reporting. In this case, the UE may perform measurement on at least one CSI-RS resource and / or at least one CLI measurement resource configured by the at least one measurement report configuration, and perform measurement reporting on the measurement result. For example, as described above, the measurement report configuration may include information on a CSI / CLI report type, a report item, a time measurement constraint configuration, a CSI / CLI resource configuration, a codebook configuration, etc.

[0197] Next, the UE can count the number of active reference signal resources (or active reference signal ports) activated within an active BWP (Active Bandwidth Part) based on the at least one measurement report configuration (S115). Here, the number of active reference signal resources (or active reference signal ports) may be the number of measurement resources that can actually be used based on a time point at which a measurement report is to be performed among the measurement resources configured by the at least one measurement report configuration. For example, as described in Table 9, the UE can determine the number of active reference signal resources (or active reference signal ports) by counting the number of measurement resources available within the active DL BWP and / or active period among the measurement resources configured by the at least one measurement report configuration. For example, the UE can count the number of measurement resources (or the number of active reference signal ports) that are within the active period defined in Table 9 and within the active DL BWP (or at least one active BWP) among the measurement resources configured by the at least one measurement report configuration as the number of active reference signal resources.

[0198] Specifically, the UE may count the number of active reference signal resources by considering not only CSI-RS resources but also CLI measurement resources. For example, the UE may count the number of active reference signal resources by considering both CSI-RS resources and CLI measurement resources available within the active DL BWP and / or active period among the measurement resources configured by the at least one measurement report configuration. Here, the CLI measurement resources may include SRS-RSRP (Sounding Reference Signal-Reference Signal Received Power) resources and CLI-RSSI (Received Signal Strength Indicator) resources newly introduced for L1 CLI measurement as described above. Alternatively, the UE may count the number of active reference signals by further considering the resource type for the CLI measurement resources among the CSI-RS resources and CLI measurement resources. For example, the UE may count only the SRS-RSRP resource among the CLI measurement resources, which are SRS-RSRP resources and CLI-RSSI resources, as the number of active reference signal resources. For example, the UE may count CSI-RS resources and SRS-RSRP resources available within the active DL BWP and / or active period among the measurement resources set by the at least one measurement report configuration as the number of active reference signal resources. Alternatively, the UE may count the number of active reference signals by further considering the reporting type (e.g., periodic, aperiodic, semi-persistent) for CLI measurement resources among CSI-RS resources and CLI measurement resources. For example, the UE may count only CLI measurement resources excluding periodic CLI measurement resources among aperiodic, periodic, and semi-persistent CLI measurement resources as the number of active reference signal resources.

[0199] Alternatively, if one CLI measurement resource is referred M times by the at least one measurement report configuration, the number of active reference signal resources may be counted M times for the one CLI measurement resource. Alternatively, based on one CLI measurement resource being referred M times by the at least one measurement report configuration, the number of active reference signals may be counted 1 time for the one CLI measurement resource. Alternatively, based on one CLI measurement resource being referred M times greater than a specific maximum value by the at least one measurement report configuration, the number of active reference signals may be counted as much as the measurement maximum value (X) for the one CLI measurement resource. Here, the measurement maximum value may be a value reported to the base station through signaling of capability information as described above.

[0200] Next, the UE may perform measurement reporting based on the number of the active reference signal resource(s) (S117). For example, the UE may expect that active reference signal resources exceeding (or equal to) the maximum number of active measurement resources reported with the capability information will not be counted / activated within the active DL BWP. In other words, the UE may expect that the active reference signal resources will not have more than the maximum number of active measurement resources within the active DL BWP. If the active reference signal resources exceeding the maximum number are counted within the active DL BWP (or, if the active reference signal resources exceed the maximum number are present within the active DL BWP), the UE may omit measurement reporting for the active reference signal resources exceeding the maximum number.

[0201] Meanwhile, the CLI reporting configuration described above can be configured for the SBFD operation time interval of the base station as described above. For example, the UE can receive configuration information for the SBFD operation time interval from the base station, and determine that the CLI measurement resources configured for the SBFD operation time interval among the CLI measurement resources configured by the CLI reporting configuration are valid, and count the active reference signal resources described above.

[0202] Figure 12 is a diagram illustrating a method for a UE to count the number of active measurement resources.

[0203] Referring to FIG. 12, the base station may receive capability information from the UE regarding the maximum number of active measurement resources (or measurement resources) that can be measured or activated within an active BWP (S121). For example, the maximum number of measurement resources that can be measured or activated (or the maximum number of measurement resources that can be set / activated within an active BWP) may be the maximum number of measurement resources that can be measured within an activated BWP, taking into account the measurement capability of the UE, etc. Here, the capability information may include information regarding the maximum number of measurement resources determined by considering not only the number of CSI-RS resources but also the number of CLI measurement resources. Alternatively, the capability information may also include information regarding the maximum number (X) that can be referred to for one measurement resource from the UE.

[0204] Next, the base station can transmit to the UE at least one measurement reporting configuration for CSI and / or CLI measurement reporting (S123). As described above, the at least one measurement reporting configuration can set not only CSI-RS resources for CSI reporting as measurement targets to be measured by the UE, but also CLI measurement resources for CLI reporting. For example, the base station can transmit to the UE CSI reporting configurations for existing CSI measurement and reporting, and set to the UE a specific CSI reporting configuration among the CSI reporting configurations as a CLI reporting configuration for CLI measurement and reporting. For example, the base station can transmit to the UE the CLI reporting configuration for a time period where analysis / understanding of the CLI environment is required, taking into account the SBFD operation time period. Here, the CLI reporting configuration can set resources, reporting items, etc. for SRS-RSRP and / or CLI-RSSI newly introduced for CLI measurement by reusing the CSI framework. For example, the UE may determine / determine a CSI reporting setting that sets resources and / or reporting items for SRS-RSRP and / or CLI-RSSI among the above CSI reporting settings as the CLI reporting setting.

[0205] Meanwhile, the base station may determine the number of measurement resources to be set by the at least one measurement report configuration based on the capability information. For example, the base station may determine the measurement resources by the at least one measurement report configuration such that the number of active measurement resources (or active reference signal resources and / or active reference signal ports) that are active / available for the UE does not exceed the maximum number included in the capability information, and may provide the at least one measurement report configuration that sets the determined measurement resources to the UE. As described above, the base station may consider not only the CSI measurement resources but also CLI measurement resources when determining the measurement resources to be set by the at least one measurement report configuration. For example, the base station may determine the CSI measurement resources and CLI measurement resources by the at least one measurement report configuration such that the number of active / available CSI measurement resources and CLI measurement resources that are active / available for the UE does not exceed the maximum number included in the capability information, and may provide the at least one measurement report configuration that sets the determined CSI measurement resources and CLI measurement resources to the UE.

[0206] For example, the at least one measurement report configuration may configure a plurality of CSI-RS resources and CLI measurement resources. At this time, the base station may transmit the at least one measurement report configuration to the UE so that the number of CSI-RS resources and CLI measurement resources to be used or activated for measurement reporting of the UE within the active BWP among the plurality of CSI-RS resources and CLI measurement resources is less than or equal to the maximum number.

[0207] Next, the base station can receive a measurement report based on the at least one measurement report configuration from the UE (S125). If the number of measurement resources configured according to the at least one measurement report configuration exceeds the maximum number of measurement resources according to the capability information, the base station can expect that measured measurement information will be reported only for measurement resources corresponding to the maximum number of measurement resources. For example, the UE can expect that the number of active reference signal resources (e.g., active measurement resources or active reference signal ports) that are active / available within the active BWP among the measurement resources configured according to the at least one measurement report configuration does not exceed the maximum number of measurement resources in the capability information. If the number of active reference signal resources exceeds the maximum number, the UE can perform measurement only on the measurement resources corresponding to the maximum number and report measurement information for the measurement resources.

[0208] In this way, the proposed invention can effectively reuse the CSI framework even when L1 CLI measurement and reporting are newly introduced. Alternatively, the proposed invention can ensure that measurement and reporting can be performed within the UE's capabilities by defining counting of measurement reference signal resources that additionally consider the newly introduced L1 CLI measurement resources. Alternatively, the proposed invention can count active reference signal resources by appropriately considering the relationship between the existing L3 CLI measurement report and the existing L1 CSI measurement report in the L1 CLI measurement report by distinguishing counting targets according to the resource type and / or report type of the newly introduced L1 CLI measurement resource.

[0209] Examples of communication systems to which the invention applies

[0210] 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.

[0211] 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.

[0212] Figure 13 illustrates a communication system applied to the present invention.

[0213] 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.

[0214] 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).

[0215] 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.

[0216] Examples of wireless devices to which the present invention is applied

[0217] Figure 14 illustrates a wireless device applicable to the present invention.

[0218] 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.

[0219] 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.

[0220] 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.

[0221] Specifically, the processor (102) of the first wireless device or UE (100) can control the transceiver (106) to receive at least one measurement report configuration and count the number of active reference signal resources within an active Bandwidth Part (BWP) based on the at least one measurement report configuration. Here, the number of active reference signal resources can be counted based on a Channel State Information-Reference Signal (CSI-RS) resource and a Cross Link Interference (CLI) measurement resource associated with the at least one measurement report configuration.

[0222] Alternatively, a processing device may be configured including a processor (102) and a memory (104). In this case, the processing device may include at least one processor; and at least one memory coupled to the at least one processor and configured to perform operations when executed by the at least one processor, the operations including receiving at least one measurement report configuration; and counting a number of active reference signal resources within an active bandwidth part (BWP) based on the at least one measurement report configuration, wherein the number of active reference signal resources may be counted based on a channel state information-reference signal (CSI-RS) resource and a cross link interference (CLI) measurement resource associated with the at least one measurement report configuration.

[0223] 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.

[0224] 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.

[0225] 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. 8 to 12.

[0226] Specifically, the processor (202) of the second wireless device or base station (200) can control the transceiver (206) or the RF transceiver to receive capability information about the maximum number of measurement resources within an active Bandwidth Part (BWP), and transmit at least one measurement report configuration for a measurement report based on the capability information. Here, the at least one measurement report configuration can set a plurality of Channel State Information-Reference Signal (CSI-RS) resources and Cross Link Interference (CLI) measurement resources, and among the plurality of CSI-RS resources and CLI measurement resources, CSI-RS resources and CLI measurement resources less than or equal to the maximum number can be set within the active BWP.

[0227] 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.

[0228] 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.

[0229] 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.

[0230] 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.

[0231] Examples of wireless devices to which the present invention is applied

[0232] 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.

[0233] 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).

[0234] 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.

[0235] 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.

[0236] 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.

[0237] 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.

[0238] 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).

[0239] 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.

[0240] 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.

[0241] 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.

[0242] 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), receiving at least one measurement report setting; and A step of counting the number of active reference signal resources within an active Bandwidth Part (BWP) based on at least one measurement report setting; A method wherein the number of the active reference signal resources is counted based on the CSI-RS (Channel State Information-Reference Signal) resources and CLI (Cross Link Interference) measurement resources associated with the at least one measurement reporting configuration.

2. In paragraph 1 A method characterized in that the number of active reference signal resources is counted M times for the one CLI measurement resource based on the fact that one CLI measurement resource is referenced M times by at least one measurement report setting.

3. In paragraph 1, A method characterized in that the number of active reference signal resources is counted once for one CLI measurement resource based on one CLI measurement resource being referenced M times by at least one measurement report setting.

4. In paragraph 1, A method characterized in that, based on the fact that one CLI measurement resource is referenced M times greater than a certain maximum value by at least one measurement report setting, the number of active reference signal resources is counted as much as the maximum value for the one CLI measurement resource.

5. In paragraph 1, The above CLI measurement resources include SRS-RSRP (Sounding Reference Signal-Reference Signal Received Power) resources and CLI-RSSI (Received Signal Strength Indicator) resources, A method characterized in that the number of the active reference signal resources is counted for the SRS-RSRP resources and not counted for the CLI-RSSI resources.

6. In paragraph 1, A method characterized in that the number of the above active reference signal resources is counted for aperiodic CLI measurement resources and semi-permanent CLI measurement resources, and is not counted for periodic CLI measurement resources.

7. In paragraph 1, Further comprising a step of reporting capability information on the maximum number of active measurement resources that can be activated within the above active BWP; A method characterized in that the maximum number of the above active measurement resources is determined by considering both the above CSI-RS resources and the above CLI measurement resources.

8. In paragraph 7, A method characterized in that the UE expects that no more than a maximum number of active measurement resources will be activated within the active BWP.

9. In paragraph 7, A method characterized in that the UE performs a measurement report based on the number of the counted active reference signal resources and the maximum number of the active measurement resources.

10. In at least one non-transitory computer-readable medium, Contains instructions that perform operations when executed by at least one processor, The above actions. Receive at least one measurement report setting; and Comprising counting the number of active reference signal resources within an active Bandwidth Part (BWP) based on at least one measurement report setting, At least one non-transitory computer-readable medium, wherein the number of said active reference signal resources is counted based on CSI-RS (Channel State Information-Reference Signal) resources and CLI (Cross Link Interference) measurement resources associated with said at least one measurement reporting configuration.

11. 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 at least one measurement report setting, and counts the number of active reference signal resources in an active Bandwidth Part (BWP) based on the at least one measurement report setting, The number of the above active reference signal resources is counted based on the CSI-RS (Channel State Information-Reference Signal) resources and CLI (Cross Link Interference) measurement resources associated with the at least one measurement reporting configuration, UE.

12. In paragraph 11, A UE, characterized in that the number of active reference signals is counted M times for the one CLI measurement resource based on the fact that one CLI measurement resource is referenced M times by at least one measurement report setting.

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 that perform operations when executed by said at least one processor; The above actions are, Receive at least one measurement report setting; and Comprising counting the number of active reference signal resources within an active Bandwidth Part (BWP) based on at least one measurement report setting, A processing device, wherein the number of the active reference signal resources is counted based on the CSI-RS (Channel State Information-Reference Signal) resources and CLI (Cross Link Interference) measurement resources associated with the at least one measurement report configuration.

14. In the method by the base station, A step of receiving capability information about the maximum number of measurement resources within an active BWP (Active Bandwidth Part); and A step of transmitting at least one measurement report setting for a measurement report based on the above capability information; A method wherein the at least one measurement report setting configures a plurality of CSI-RS (Channel State Information-Reference Signal) resources and CLI (Cross Link Interference) measurement resources, and sets CSI-RS resources and CLI measurement resources less than or equal to the maximum number within the active BWP among the plurality of CSI-RS resources and CLI measurement resources.

15. At the base station, RF (Radio Frequency) transmitter and receiver; and A processor connected to the RF transceiver, The processor controls the RF transceiver to receive capability information about the maximum number of measurement resources in an active Bandwidth Part (BWP), and transmits at least one measurement report setting for a measurement report based on the capability information. A base station, wherein the at least one measurement report setting configures a plurality of CSI-RS (Channel State Information-Reference Signal) resources and CLI (Cross Link Interference) measurement resources, and sets CSI-RS resources and CLI measurement resources less than or equal to the maximum number within the active BWP among the plurality of CSI-RS resources and CLI measurement resources.

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