Apparatus and method for performing resource configuration in wireless communication system

Abstract

According to various embodiments of the present disclosure, a method of operating a user equipment (UE) in a wireless communication system is provided. The method includes: receiving, from a base station, indication information of a downlink (DL) signal or an uplink (UL) signal within a specific duration in which half-duplex (HD) or full-duplex (FD) can be performed, the indication information including information on a transmission configuration indicator (TCI) state or a sounding reference signal resource indicator (SRI) available in the duration of the FD; and performing, on the basis of the indication information, transmission and reception using the TCI state or the SRI corresponding to the indicated duration in the indicated duration among the duration of the FD.

Description

Technical Field

[0001] The present disclosure relates to a wireless communication system. More specifically, the present disclosure relates to an apparatus and method for performing resource configuration in a wireless communication system. Background Art

[0002] In 5G, new types of services (such as extended reality (XR), AI-based services, and autonomous vehicles) are emerging, and these services have the characteristics of dynamically changing traffic in the downlink (DL) and uplink (UL) directions and requiring low latency for packet transmission. To support these various new use cases, the traffic load in 5G services will increase explosively.

[0003] On the other hand, existing semi-static or dynamic TDD UL / DL configurations have limitations such as transmission time delay and inter-operator interference. Existing FDD schemes have limitations in terms of efficient frequency resource utilization for the DL / UL directions.

[0004] Therefore, introducing full-duplex operation within a single carrier is being discussed for low latency time and efficient resource utilization in NR. Summary of the Invention

[0005] Technical Problem

[0006] To solve the above problems and other problems, the present disclosure provides an apparatus and method for performing resource configuration in a wireless communication system.

[0007] The technical objects to be achieved by the present disclosure are not limited to those described only by way of example above, and other technical objects not mentioned can be clearly understood by those skilled in the art to which the present disclosure pertains from the following description.

[0008] Technical Solution

[0009] According to various embodiments of the present disclosure, there is provided a method of operating a user equipment (UE) in a wireless communication system, the method comprising: receiving, from a base station, indication information of a downlink (DL) signal or an uplink (UL) signal within a specific duration capable of performing half-duplex (HD) or full-duplex (FD), the indication information including information on a transmission configuration indicator (TCI) state or a sounding reference signal resource indicator (SRI) available during the duration for FD; and based on the indication information, performing transmission and reception using the TCI state or SRI corresponding to the indicated duration during the indicated duration among the durations for FD.

[0010] According to various embodiments of the present disclosure, there is provided a method for operating a base station in a wireless communication system, the method comprising: sending, to a user equipment (UE), indication information of a downlink (DL) signal or an uplink (UL) signal that can be in half-duplex (HD) or full-duplex (FD) for a specific duration, the indication information including information on a transmission configuration indicator (TCI) state or a sounding reference signal resource indicator (SRI) available during the duration for FD; and based on the indication information, performing transmission and reception using a TCI state or an SRI corresponding to the indicated duration during the indicated duration among the durations for FD.

[0011] According to various embodiments of the present disclosure, there is provided a user equipment (UE) in a wireless communication system, the UE comprising: a transceiver; at least one processor; and at least one memory, the at least one memory being operably connectable to the at least one processor and configured to store instructions that, when executed by the at least one processor, perform operations, wherein the operations include all steps of a method for operating the UE according to various embodiments of the present disclosure.

[0012] According to various embodiments of the present disclosure, there is provided a base station in a wireless communication system, the base station comprising: a transceiver; at least one processor; and at least one memory, the at least one memory being operably connectable to the at least one processor and configured to store instructions that, when executed by the at least one processor, perform operations, wherein the operations include all steps of a method for operating the base station according to various embodiments of the present disclosure.

[0013] According to various embodiments of the present disclosure, there is provided a control device for controlling a user equipment (UE) in a wireless communication system, the control device comprising: at least one processor; and at least one memory, the at least one memory being operably connectable to the at least one processor, wherein the at least one memory is configured to store instructions that, when executed by the at least one processor, perform operations, and the operations include all steps of a method for operating the UE according to various embodiments of the present disclosure.

[0014] According to various embodiments of the present disclosure, there is provided a control apparatus for controlling a base station in a wireless communication system, the control apparatus including: at least one processor; and at least one memory operatively connectable to the at least one processor, wherein the at least one memory is configured to store instructions that, when executed by the at least one processor, perform operations, and the operations include all steps of a method of operating a base station according to various embodiments of the present disclosure.

[0015] According to various embodiments of the present disclosure, there is provided one or more non-transitory computer-readable media storing one or more instructions, wherein the one or more instructions are configured to perform operations when executed by one or more processors, and the operations include all steps of a method of operating a user equipment (UE) according to various embodiments of the present disclosure.

[0016] According to various embodiments of the present disclosure, there is provided one or more non-transitory computer-readable media storing one or more instructions, wherein the one or more instructions are configured to perform operations when executed by one or more processors, and the operations include all steps of a method of operating a base station according to various embodiments of the present disclosure.

[0017] Advantageous Effects

[0018] To solve the above problems and other problems, the present disclosure may provide an apparatus and method for performing resource configuration in a wireless communication system. Brief Description of the Drawings

[0019] The drawings included to provide a further understanding of the present disclosure and constituting a part of the detailed description illustrate embodiments of the present disclosure and are used to explain the technical features of the present disclosure together with the description. The technical features of the present disclosure are not limited to specific drawings, and the features disclosed in each drawing may be combined with each other to form new embodiments. Reference numerals in each drawing may represent structural elements.

[0020] Figure 1 Examples of physical channels used in a system applicable to the present disclosure and a general signal transmission method using the physical channels are illustrated.

[0021] Figure 2 Examples of the structure of radio frames used in a system applicable to the present disclosure are illustrated.

[0022] Figure 3 Examples of the structure of time slots used in a system applicable to the present disclosure are illustrated.

[0023] Figure 4 Illustrates an example of a time slot structure used in the system applicable to the present disclosure.

[0024] Figure 5 Illustrates an example of the structure of a radio frame used in the system applicable to the present disclosure.

[0025] Figure 6 Illustrates an example of a structure in which resources operating in half-duplex (HD) and resources operating in full-duplex (FD) (such as SB-FD or SS-FD) coexist in the system applicable to the present disclosure.

[0026] Figure 7 Illustrates an example of a structure in which resources operating in half-duplex (HD) and resources operating in full-duplex (FD) (such as SB-FD or SS-FD) coexist in the system applicable to the present disclosure.

[0027] Figure 8 Illustrates an example of a structure in which resources operating in half-duplex (HD) and resources operating in full-duplex (FD) (such as SB-FD or SS-FD) coexist in the system applicable to the present disclosure.

[0028] Figure 9 Illustrates an example of a structure in which resources operating in half-duplex (HD) and resources operating in full-duplex (FD) (such as SB-FD or SS-FD) coexist in the system applicable to the present disclosure.

[0029] Figure 10 Illustrates an example of a structure in which resources operating in half-duplex (HD) and resources operating in full-duplex (FD) (such as SB-FD or SS-FD) coexist in the system applicable to the present disclosure.

[0030] Figure 11 Illustrates an example of a structure in which resources operating in half-duplex (HD) and resources operating in full-duplex (FD) (such as SB-FD or SS-FD) coexist in the system applicable to the present disclosure.

[0031] Figure 12 Illustrates an example of a structure in which resources operating in half-duplex (HD) and resources operating in full-duplex (FD) (such as SB-FD or SS-FD) coexist in the system applicable to the present disclosure.

[0032] Figure 13 Illustrates an example of information indicating downlink resources and uplink resources based on antenna configuration in the system applicable to the present disclosure.

[0033] Figure 14 Illustrates an example of a separate Tx / Rx antenna array model in the system applicable to the present disclosure.

[0034] Figure 15 Illustrates an example of (a) conventional TDD using a shared Tx / Rx antenna array in a system applicable to the present disclosure.

[0035] Figure 16 Illustrates an example of (b) SBFD antenna configuration option 1 (Method 1) in a system applicable to the present disclosure.

[0036] Figure 17 Illustrates an example of (c) SBFD antenna configuration option 2 (Method 2-1) in a system applicable to the present disclosure.

[0037] Figure 18 Illustrates an example of (d) SBFD antenna configuration option 2 (Method 2-2) in a system applicable to the present disclosure.

[0038] Figure 19 Illustrates an example of (e) SBFD antenna configuration option 3 (Method 3-1) in a system applicable to the present disclosure.

[0039] Figure 20 Illustrates an example of (f) SBFD antenna configuration option 3 (Method 3-2) in a system applicable to the present disclosure.

[0040] Figure 21 Illustrates an example of the operation procedure of a UE in a system applicable to the present disclosure.

[0041] Figure 22 Illustrates an example of the operation procedure of a base station in a system applicable to the present disclosure.

[0042] Figure 23 Illustrates an example of the structures of a first device and a second device in a system applicable to the present disclosure. Detailed implementation

[0043] In various embodiments of the present disclosure, "A or B" may represent "only A", "only B", or "both A and B". In other words, in various embodiments of the present disclosure, "A or B" may be interpreted as "A and / or B". For example, in various embodiments of the present disclosure, "A, B, or C" may represent "only A", "only B", "only C", or "any combination of A, B, and C".

[0044] The slash ( / ) or comma used in various embodiments of the present disclosure may represent "and / or". For example, "A / B" may represent "A and / or B". Therefore, "A / B" may represent "only A", "only B", or "both A and B". For example, "A, B, C" may represent "A, B, or C".

[0045] In various embodiments of the present disclosure, "at least one of A and B" may represent "only A", "only B", or "both A and B". Further, in various embodiments of the present disclosure, the expression "at least one of A or B" or "at least one of A and / or B" may be interpreted to have the same meaning as "at least one of A and B".

[0046] Further, in various embodiments of the present disclosure, "at least one of A, B, and C" may represent "only A", "only B", "only C", or "any combination of A, B, and C". Further, "at least one of A, B, or C" or "at least one of A, B, and / or C" may mean "at least one of A, B, and C".

[0047] Further, parentheses used in various embodiments of the present disclosure may represent "for example". Specifically, when describing "control information (PDCCH)", "PDCCH" may be presented as an example of "control information". In other words, "control information" in various embodiments of the present disclosure is not limited to "PDCCH", and "PDDCH" may be presented as an example of "control information". Further, even when describing "control information (i.e., PDCCH)", "PDCCH" may be presented as an example of "control information".

[0048] In various embodiments of the present disclosure, technical features described separately in one drawing may be implemented separately or simultaneously.

[0049] General signal transmission method in 3GPP

[0050] Physical channels and general signal transmission

[0051] Figure 1 Examples of physical channels used in a system applicable to the present disclosure and a general signal transmission method using the physical channels are illustrated. More specifically, Figure 1 Examples of physical channels and general signal transmission used in a 3GPP system are illustrated.

[0052] Figure 1 Examples of physical channels and general signal transmission used in a 3GPP system are illustrated. In a wireless communication system, a UE receives information from an eNB via a downlink (DL), and the UE transmits information to the eNB via an uplink (UL). The information transmitted and received by the eNB and the UE includes data and various control information, and there are various physical channels according to the type / use of the information transmitted and received by the eNB and the UE.

[0053] In S11, a UE that is powered on again after a power outage or enters a new cell performs an initial cell search operation, such as synchronizing with a base station (BS). To this end, the UE receives a primary synchronization channel (PSCH) and a secondary synchronization channel (SSCH) from the base station to synchronize with the base station, and obtains information such as a cell identifier (ID). In addition, the UE can receive a physical broadcast channel (PBCH) from the base station and obtain in-cell broadcast information. The UE can receive a downlink reference signal (DL RS) during the initial cell search step to check the downlink channel state.

[0054] In S12, a UE that has completed the initial cell search can receive a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) corresponding to the PDCCH to obtain more detailed system information.

[0055] Next, in S13 to S16, the UE can perform a random access procedure to complete access to the base station. Specifically, in S13, the UE can transmit a preamble on a physical random access channel (PRACH), and in S14, receive a random access response (RAR) for the preamble on the PDCCH and the PDSCH corresponding to the PDCCH. Thereafter, in S15, the UE can use the scheduling information in the RAR to transmit a physical uplink shared channel (PUSCH), and in S16, perform a contention resolution procedure such as the PDCCH and the PDSCH corresponding to the PDCCH.

[0056] Next, the UE that has performed the above process can perform PDCCH / PDSCH reception S17 and PUSCH / physical uplink control channel (PUCCH) transmission S18 as a general uplink / downlink signal transmission process. The control information sent by the UE to the base station is referred to as uplink control information (UCI). UCI includes hybrid automatic repeat request (HARQ) acknowledgement / negative ACK (ACK / NACK), scheduling request (SR), channel state information (CSI), etc. CSI includes channel quality indicator (CQI), precoding matrix indicator (PMI), rank indicator (RI), etc. UCI is usually transmitted on the PUCCH, but can also be transmitted on the PUSCH if it is necessary to transmit control information and data simultaneously. The UE can transmit UCI non-periodically on the PUSCH based on a network request / indication.

[0057] Orthogonal Frequency Division Multiplexing (OFDM) parameter set

[0058] The new RAT system uses an OFDM transmission scheme or a transmission scheme similar thereto. The new RAT system may follow OFDM parameters different from those of LTE. Alternatively, the new RAT system may follow the parameter set of existing LTE / LTE-A as it is, but with a larger system bandwidth (e.g., 100 MHz). Alternatively, one cell may support multiple parameter sets. In other words, UEs operating with different parameter sets may coexist in one cell.

[0059] Radio frame structure

[0060] Figure 2 An example of the structure of a radio frame used in a system applicable to the present disclosure is illustrated.

[0061] In NR, uplink and downlink transmissions are composed of frames. A radio frame has a length of 10 ms and is defined as two 5-ms half-frames (HFs). A half-frame is defined as five 1-ms sub-frames (SFs). A sub-frame is divided into one or more time slots, and the number of time slots in a sub-frame depends on the subcarrier spacing (SCS). Depending on the cyclic prefix (CP), each time slot includes 12 or 14 OFDM(A) symbols. When normal CP is used, each time slot includes 14 symbols. When extended CP is used, each time slot includes 12 symbols. The symbols may include OFDM symbols (or CP-OFDM symbols) and SC-FDMA symbols (or DFT-s-OFDM symbols).

[0062] Table 1 illustrates that when normal CP is used, the number of symbols per time slot, the number of time slots per frame, and the number of time slots per sub-frame vary according to the SCS.

[0063] [Table 1]

[0064] <![CDATA[SCS(15*2 u )]]> <![CDATA[N slot symb > <![CDATA[N firame,u slot > <![CDATA[N subframe，u slot > 15KHz (u = 0) 14 10 1 30KHz (u = 1) 14 20 2 60KHz (u = 2) 14 40 4 120KHz (u = 3) 14 80 8 240KHz (u = 4) 14 160 16

[0065] N slot symb is the number of symbols in a time slot. N frame,u slot is the number of time slots in a frame. N subframe,u slot is the number of time slots in a sub-frame.

[0066] Table 2 illustrates that when extended CP is used, the number of symbols per time slot, the number of time slots per frame, and the number of time slots per sub-frame vary according to the SCS.

[0067] [Table 2]

[0068] <![CDATA[SCS(15*2 u )]]> <![CDATA[N slot symb > <![CDATA[N fame,u slot > <![CDATA[N subframe,u slot > 60KHz (u = 2) 12 40 4

[0069] NR supports multiple parameter sets (or subcarrier spacings (SCS)) for supporting various 5G services. For example, when the SCS is 15 kHz, it supports wide areas in traditional cellular bands, when the SCS is 30 kHz / 60 kHz, it supports dense cities, lower latency, and wider carrier bandwidths, and when the SCS is 60 kHz or higher, it supports bandwidths greater than 24.25 GHz to overcome phase noise.

[0070] NR bands can be defined as two types of frequency ranges (FR1 and FR2). The values of the frequency ranges can change. For example, the two frequency ranges (FR1 and FR2) can be as shown in Table 3 below. For ease of description, among the frequency ranges used in the NR system, FR1 can represent the "below 6 GHz range", and FR2 can represent the "above 6 GHz range", and can be referred to as millimeter wave (mmW).

[0071] [Table 3]

[0072] Frequency range name Corresponding frequency range Subcarrier spacing FR1 450MHz - 6000MHz 15, 30, 60kHz FR2 24250MHz - 52600MHz 60, 120, 240kHz

[0073] As described above, the values of the frequency ranges of the NR system can change. For example, FR1 can include frequency bands from 410 MHz to 7125 MHz, as shown in Table 4 below. That is, FR1 can include frequency bands of 6 GHz (or 5850, 5900, 5925 MHz, etc.) or higher. For example, the frequency bands of 6 GHz (or 5850, 5900, 5925 MHz, etc.) or higher included in FR1 can include unlicensed frequency bands. The unlicensed frequency bands can be used for various purposes, such as communication for vehicles (e.g., autonomous driving).

[0074] [Table 4]

[0075] Frequency range name Corresponding frequency range Subcarrier spacing FR1 410MHz - 7125MHz 15, 30, 60kHz FR2 24250MHz - 52600MHz 60, 120, 240kHz

[0076] In the NR system, the OFDM(A) parameter sets (e.g., SCS, CP length, etc.) can be configured differently between multiple cells merged into one UE. Therefore, the (absolute time) durations of time resources (e.g., SF, time slot, or TTI) (collectively referred to as time unit (TU) for convenience) composed of the same number of symbols can be configured differently between the merged cells.

[0077] Figure 3 An example of the time slot structure used in the system applicable to the present disclosure is illustrated.

[0078] A time slot includes multiple symbols in the time domain. For example, a time slot includes 7 symbols under normal CP, while a time slot includes 6 symbols under extended CP. A carrier includes multiple subcarriers in the frequency domain. A resource block (RB) is defined as multiple (e.g., 12) consecutive subcarriers in the frequency domain. A bandwidth part (BWP) is defined as multiple (P) consecutive RBs in the frequency domain and can correspond to a parameter set (e.g., SCS, CP length, etc.). A carrier can include up to N (e.g., 5) BWPs. Data communication can be performed through an activated BWP, and only one BWP can be activated in a UE. In a resource grid, each element is called a resource element (RE), and one complex symbol can be mapped to each RE.

[0079] Figure 4 An example of a time slot structure used in a system applicable to the present disclosure is illustrated.

[0080] More specifically, Figure 4 An example of the structure of a self - contained time slot is illustrated.

[0081] In an NR system, a frame is characterized by a self - contained structure, in which all of a DL control channel, DL or UL data, and a UL control channel can be included in one time slot. For example, the first N symbols in a time slot can be used to transmit a DL control channel (hereinafter referred to as a DL control region), and the last M symbols in a time slot can be used to transmit a UL control channel (hereinafter referred to as a UL control region), where N and M are integers greater than or equal to 0. The resource region (hereinafter referred to as a data region) between the DL control region and the UL control region can be used for DL data transmission or UL data transmission. For example, the following configurations can be considered. Each duration is listed in chronological order.

[0082] 1. DL - only configuration

[0083] 2. UL - only configuration

[0084] 3. Hybrid UL - DL configuration

[0085] - DL region + guard period (GP) + UL control region

[0086] - DL control region + GP + UL region

[0087] * DL region: (i) DL data region, (ii) DL control region + DL data region

[0088] * UL region: (i) UL data region, (ii) UL data region + UL control region

[0089] The PDCCH can be sent in the DL control region, and the PDSCH can be sent in the DL data region. The PUCCH can be sent in the UL control region, and the PUSCH can be sent in the UL data region. On the PDCCH, downlink control information (DCI) can be sent, such as DL data scheduling information, UL data scheduling information, etc. On the PUCCH, uplink control information (UCI) for DL data can be sent, such as acknowledgement / negative acknowledgement (ACK / NACK) information, channel state information (CSI), scheduling request (SR), etc. The GP provides a time gap during the process of the base station and the UE switching from the transmission mode to the reception mode or from the reception mode to the transmission mode. Some symbols at the time when DL is switched to UL in a subframe can be configured as the GP.

[0090] Full-duplex operation for NR

[0091] In 5G, new types of services such as extended reality (XR), AI-based services, and autonomous vehicles are emerging, and these services have the characteristics of dynamically changing traffic in both the downlink (DL) and uplink (UL) directions and requiring low latency for packet transmission. To support these various new use cases, the traffic load in 5G services will increase explosively.

[0092] On the other hand, existing semi-static or dynamic TDD UL / DL configurations have limitations such as transmission time delay and inter-operator interference. Existing FDD schemes have limitations in terms of efficient frequency resource utilization for the DL / UL directions.

[0093] Therefore, the introduction of full-duplex operation within a single carrier is being discussed for low latency time and efficient resource utilization in NR.

[0094] Figure 5 An example of the structure of a radio frame applicable to the system of the present disclosure is illustrated.

[0095] As an example of a method for applying full-duplex within a carrier, as Figure 5 shown, sub-band full-duplex (SB-FD) and spectrum-sharing full-duplex (SS-FD) can be considered. In SB-FD, different frequency resources in the same carrier are used to perform DL and UL transmission and reception. That is, DL and UL have different frequency resources for the same time resource. In SS-FD, DL and UL transmission and reception are performed through the same frequency resources or overlapping frequency resources in the same carrier. That is, DL and UL can have the same or overlapping frequency resources for the same time resource.

[0096] This full-duplex operation can be used in combination with existing half-duplex operations. In existing half-duplex-based TDD operations, only some time resources can be used for full-duplex operations. Among the time resources for performing full-duplex operations, SB-FD or SS-FD operations can be executed.

[0097] Figure 6 An example of a structure in which resources for half-duplex (HD) operation and resources for full-duplex (FD) operation (such as SB-FD or SS-FD) coexist in a system applicable to the present disclosure is illustrated.

[0098] Figure 7 An example of a structure in which resources for half-duplex (HD) operation and resources for full-duplex (FD) operation (such as SB-FD or SS-FD) coexist in a system applicable to the present disclosure is illustrated.

[0099] Figure 6 and Figure 7 An example in which time resources for half-duplex (HD) operation and time resources for full-duplex (FD) operation (such as SB-FD or SS-FD) coexist is illustrated. In Figure 6 , some time resources are for SB-FD operation and the remaining time resources are for HD operation. In Figure 7 , some time resources are for SS-FD operation and the remaining time resources are for HD operation. In this example, the unit of time resources can be, for example, a time slot or a symbol.

[0100] Among the time resources for SB-FD operation, some frequency resources are used as DL resources and some frequency resources are used as UL resources. Between the DL frequency resources and the UL frequency resources, there may be a guard band (or guard frequency resources or guard subcarriers) that is not used for both DL and UL and is empty. Among the time resources for SF-FD operation, the entire frequency resource can be used for both DL and UL. Alternatively, some frequency resources at one or both ends of the carrier can be not used for DL and / or UL to reduce the influence of interference from other adjacent carriers (i.e., adjacent carrier interference (ACI)). That is, one or both ends of the carrier can be used as a guard band that is not used for both DL and UL. Alternatively, one or both ends of the carrier can be used only for DL transmission to reduce the influence of ACI on UL reception.

[0101] In the present disclosure, the time slot resources for HD operation are called HD time slots, and the time slot resources for SB-FD operation and the time slot resources for SS-FD operation are called SB-FD time slots and SS-FD time slots, respectively. Additionally, SB-FD time slots and SS-FD time slots are collectively called FD time slots.

[0102] In the present disclosure, among all frequency resources in the time resources operating in FD, the frequency resources operating in DL are referred to as DL sub-bands, and the frequency resources operating in UL are referred to as UL sub-bands.

[0103] In the full-duplex operation as described above, both the gNB and the UE can perform full-duplex operations. That is, both the gNB and the UE can simultaneously perform DL and UL transmission and reception using the same or different frequency resources in the same time resource. On the other hand, only the gNB can perform full-duplex operations, and the UE can perform half-duplex operations. The gNB can simultaneously perform DL and UL transmission and reception using the same or different frequency resources in the same time resource, but the UE only performs DL reception or UL transmission in a specific time resource. In this case, the gNB performs full-duplex operations by simultaneously performing DL transmission and UL reception with different UEs.

[0104] The present disclosure is generally described under the assumption that the gNB performs full-duplex operations and the UE performs half-duplex operations. However, the present disclosure can also be applied when both the gNB and the UE perform full-duplex operations.

[0105] Technical problems to be solved by the present disclosure

[0106] Hereinafter, the term network can be explained by replacing the gNB (next-generation node B) or the centralized unit (CU) / distributed unit (DU). The term user equipment (UE) can be explained by replacing the mobile terminal (MT) of the integrated access / backhaul (IAB) node.

[0107] Characteristics of DL / UL time / frequency resources for SB-FD and SS-FD operations

[0108] Figure 8 An example of a structure in which resources operating in half-duplex (HD) and resources operating in full-duplex (FD) (such as SB-FD or SS-FD) coexist in a system applicable to the present disclosure is illustrated.

[0109] Figure 9 An example of a structure in which resources operating in half-duplex (HD) and resources operating in full-duplex (FD) (such as SB-FD or SS-FD) coexist in a system applicable to the present disclosure is illustrated.

[0110] Figure 10 An example of a structure in which resources operating in half-duplex (HD) and resources operating in full-duplex (FD) (such as SB-FD or SS-FD) coexist in a system applicable to the present disclosure is illustrated.

[0111] Figure 11An example of a structure in which resources operating in half-duplex (HD) and resources operating in full-duplex (FD) (such as SB-FD or SS-FD) coexist in a system applicable to the present disclosure is illustrated.

[0112] In the present disclosure, it is assumed that a cell (gNB) performs both DL transmission and UL reception in the same time resource with an FD scheme such as SB-FD or SS-FD. More specifically, it is assumed that the cell performs HD operation in a first time resource and FD operation in a second time resource (which may be the remaining time resource other than the first time resource).

[0113] In the first time resource for performing HD operation, DL operation or UL operation is performed in all frequency resources constituting the entire system bandwidth. In the first time resource for performing HD operation, the network performs DL operation through time resource 1-1 and UL operation through time resource 1-2. In this example, time resource 1-1 and time resource 1-2 do not overlap with each other.

[0114] In the second time resource for performing FD operation, the network performs DL operation through all frequency resources or some frequency resources (first frequency resources) constituting the system bandwidth of the cell, and performs UL operation through all frequency resources or some frequency resources (second frequency resources).

[0115] For example, as Figure 8 shown, the time resource for operating in HD corresponds to the first time resource, and the time resource for operating in SB-FD corresponds to the second time resource. For the first time resource, the time resource marked as DL corresponds to time resource 1-1, and the time resource marked as UL corresponds to time resource 1-2. As Figure 9 shown, for the second time resource, the frequency resources operating in DL correspond to the first frequency resources, and the frequency resources operating in UL correspond to the second frequency resources.

[0116] Again, for example, as Figure 10 shown, the time resource for operating in HD corresponds to the first time resource, and the time resource for operating in SS-FD corresponds to the second time resource. For the first time resource, the time resource marked as DL corresponds to time resource 1-1, and the time resource marked as UL corresponds to time resource 1-2. As Figure 11 shown, for the second time resource, the frequency resources operating in DL correspond to the first frequency resources, and the frequency resources operating in UL correspond to the second frequency resources. The frequency resources marked as DL+UL are frequency resources capable of performing both DL operation and UL operation and correspond to both the first frequency resources and the second frequency resources.

[0117] More specifically, the first frequency resource and / or the second frequency resource may have all or some of the following characteristics.

[0118] (1) When performing SB-FD operation, the first frequency resource and the second frequency resource do not overlap with each other. This is to ensure that DL resources and UL resources are performed through different frequency resources. In this instance, there may be a frequency resource that does not correspond to both the first frequency resource and the second frequency resource, and this frequency resource is referred to as a guard sub-band or a guard frequency resource. The guard frequency resource may be necessary to reduce the interference of DL transmission on UL reception. The guard frequency resource may be located between the first frequency resource and the second frequency resource.

[0119] (2) When performing SS-FD operation, the first frequency resource and the second frequency resource may overlap with each other. In this instance, there may be a frequency resource that does not correspond to both the first frequency resource and the second frequency resource, and this frequency resource is referred to as a guard sub-band or a guard frequency resource. The guard frequency resource may be necessary to reduce the interference from DL transmission in an adjacent carrier to UL reception and / or reduce the interference from DL transmission to UL reception in an adjacent carrier.

[0120] (3) When performing SB-FD operation, the second frequency resource may include continuous frequency resources, and the first frequency resource may include discontinuous frequency resources. In this instance, the first frequency resource may include multiple (e.g., two) sets of continuous frequency resources. This is to reduce the interference from DL transmission in an adjacent carrier to UL resources by positioning the second frequency resource for UL at the center of the frequency resources constituting the cell. Conversely, the first frequency resource may include continuous frequency resources, and the second frequency resource may include discontinuous frequency resources. In this instance, the second frequency resource may include multiple (e.g., two) sets of continuous frequency resources. This is to reduce the interference from DL transmission to UL resources in an adjacent carrier by positioning the second frequency resource for DL at the center of the frequency resources constituting the cell.

[0121] (4) When performing SS-FD operation, the second frequency resource may include some frequency resources of the first frequency resource. In this instance, the second frequency resource may include frequency resources with X fewer PRBs than the first frequency resource for one edge part or two edge parts. This is to reduce the interference from DL transmission in an adjacent carrier to UL reception.

[0122] The network can determine / decide the above-mentioned "first time resource" and "second time resource", as well as "first frequency resource" and "second frequency resource", and provide all or part of the corresponding information to the UE. The network performs DL transmission to the UE in the "1-1 time resource within the first time resource" and "first frequency resource within the second time resource", and performs UL reception from the UE in the "1-2 time resource within the first time resource" and "second frequency resource within the second time resource".

[0123] The UE can receive all or part of the information about the above-mentioned "first time resource" and "second time resource", as well as "first frequency resource" and "second frequency resource" from the network, and determine the location of the resources. The UE performs DL reception from the network through all or part of the "1-1 time resource within the first time resource" and "first frequency resource within the second time resource", and performs UL transmission to the network through the "1-2 time resource within the first time resource" and "second frequency resource within the second time resource".

[0124] In the existing NR TDD carrier, the gNB performs only one of the downlink operation and the uplink operation within a specific time resource. In this instance, the gNB always operates in the downlink in the time resource for transmitting the SSB.

[0125] For the UE operating in the existing TDD mode, the following is assumed for the symbol for transmitting the SSB.

[0126] (1) The SS / PBCH transmission symbol cannot be configured as uplink through TDD configuration (through TDD-UL-DL-ConfigCommon and / or TDD-UL-DL-ConfigDedicated).

[0127] (2) The SS / PBCH transmission symbol cannot be configured as uplink through DCI format 2_0 via slot format indication (SFI).

[0128] (3) If the SS / PBCH is transmitted in a symbol configured as flexible through TDD configuration (through TDD-UL-DL-ConfigCommon and / or TDD-UL-DL-ConfigDedicated), when the UE's uplink transmission overlaps with the SS / PBCH symbol, the UE does not perform uplink transmission. (If the sounding reference signal (SRS) overlaps with the SS / PBCH symbol in the flexible symbol, the UE does not perform SRS transmission in the overlapping symbol)

[0129] In FDR environments such as SB-FD and SS-FD, from the perspective of the cell, both DL resources and UL resources can exist in the same time resource. Therefore, the gNB can perform uplink reception while performing downlink transmission.

[0130] Therefore, even when transmitting the SS / PBCH in the time resource where the cell performs FDR operations, the gNB can perform uplink reception while transmitting the SS / PBCH.

[0131] According to the current standard specifications, the UE cannot perform uplink transmission in the symbol resources where the SS / PBCH is transmitted. In this case, FDR operations cannot be performed in the SS / PBCH transmission time resource.

[0132] TDD configuration

[0133] In the existing spectrum where TDD is performed, the base station and the UE assume half-duplex (HD) operation, and the communication between the base station and the UE is characterized by: separating time such that the time resources for performing the downlink (where a signal is sent from the base station to the UE and received by the UE) and the time resources for performing the uplink (where a signal is sent from the UE to the base station and received by the base station) do not overlap with each other. (Or even in the sidelink where direct communication is performed between UEs, the transmission time and reception time of the UE are also separated.) If half-duplex is supported in the spectrum where TDD is performed as described above, the base station and the UE can use all the frequency resources to be used at a specific time in the downlink or the uplink. By determining which time resources will be used for the downlink or the uplink and indicating this information to the UE, the UE can perform operations by determining that it will receive downlink signals in some time resources and send uplink signals at other times. For this purpose, in the LTE system, special time slots (S) are defined such that all OFDM symbols of a specific time (1 ms) in units of a specific time are used for the downlink (D) or the uplink (U); or some of the OFDM symbols included in the OFDM symbols of a specific time are used for the DL, other OFDM symbols are used for the UL, and the remaining OFDM symbols are used for the gap time. The base station is designed to determine D or S or U within a specific time range, configure the TDD configuration based on this, and indicate it to the UE. For example, the base station can indicate that it is configured as DDDSU within a range of 5 ms. The TDD configuration indicated in this way is typically applied to all UEs belonging to the cell. In the NR system, the TDD configuration can be configured by specifying the positions of downlink time slots and downlink OFDM symbols or flexible time slots and flexible OFDM symbols or uplink time slots and uplink OFDM symbols within a specific time duration, and can be indicated to the UE. The indication of the above configurations can be distinguished based on the cell-specific TDD configuration indicated via system information, the UE-specific TDD configuration indicated via UE-specific RRC signaling, and the indicator commonly indicated to the UE group.

[0134] Recently, 3GPP has been studying sub-band full-duplex (SBFD), which allows simultaneous transmission and reception of DL and UL at the base station side by dividing the frequency based on each sub-band in a single carrier. In SBFD, the existing half-duplex is characterized by achieving transmission and reception in opposite directions (downlink and uplink) by differentiating frequencies in the duration only for the downlink or only for the uplink. (Performing transmission and reception in opposite directions (downlink and uplink, or sidelinks in both directions) by overlapping frequencies can also be referred to as full-duplex operation. This disclosure assumes that it can be applied to various full-duplex operations, not limited to SB-FD.)

[0135] In this example, it can be assumed that the base station operates in full duplex and the UE operates in half duplex. During the initial access process, the UE acquires initial synchronization from the synchronization signal and obtains the most basic information of the base station from the PBCH, then monitors the PDCCH to obtain system information and obtains the system information through the PDSCH. The system information includes the TDD configuration commonly used by UEs in the cell. When the base station performs full-duplex operation, the system information may include information related to full-duplex operation and can be indicated to the UE.

[0136] For example, the system information may include:

[0137] (1) Information notifying the time resources for performing full duplex; and

[0138] (2) Frequency resource information for each of the downlink and the uplink when performing full duplex.

[0139] The advantage of SB-FD is that it allows the base station to use DL resources and UL resources more flexibly in terms of frequency. When the DL traffic is relatively low, more UL resources can be designated and used, and when UL coverage enhancement is required, more UL resources can be designated and used.

[0140] However, if only the TDD configuration included in the existing system information is used, it may be difficult to utilize the advantage of SB-FD which aims to use more UL resources.

[0141] For example, it can be assumed that the TDD configuration is operated such that the DL occupies more time in the same way as the existing DDDSU, and some of the time resources of D allow full-duplex operation and are designated as the time resources allowing full-duplex operation. In this case, a UE performing half-duplex operation in the time resources allowing full-duplex operation can perform both downlink operation and uplink operation, but if the existing TDD configuration is followed to determine on which link to operate, the operation will clearly be determined as only downlink.

[0142] MIMO operation

[0143] In full duplex, self-interference where the transmitted signal is received with a large amount of interference may be a problem. To solve this problem, various forms of self-interference suppression / cancellation methods can be used. Among these methods, there is a method of performing transmission and reception by separating the transmit antenna and the receive antenna. As a similar method, there is a method of reducing the amount of self-interference by configuring the beam generated from the transmit antenna and the beam generated from the receive antenna to be orthogonal to each other.

[0144] Problem 1

[0145] In existing TDD half-duplex, when performing DL and UL, the transmit antenna and receive antenna can be shared. In this case, it can be assumed that the spatial channels of DL and UL are reciprocal. Using this feature, when the UE transmits SRS in UL, the base station can receive the SRS and select the transmit precoder for DL. Compared with the method in which the base station selects the DL transmit precoder based on the information about the PMI selected using CSI-RS in DL reported by the UE, this can guarantee good performance. However, in the case of separating the antennas for transmission and reception to reduce self-interference in full-duplex, it is difficult to assume the reciprocity of the DL and UL channels. Additionally, since SBFD performs transmission and reception by dividing frequencies for DL and UL, even if the transmit antenna and receive antenna are shared, it is difficult to assume channel reciprocity. In this case, a new method for selecting the DL precoder by using DL CSI-RS or by using SRS is needed.

[0146] Problem 2

[0147] The number of transmit antennas and receive antennas for TDD half-duplex transmission and reception can be different from the number of transmit antennas and receive antennas for full-duplex transmission and reception. For example, the number of antennas used in TDD half-duplex is N, and a smaller number of antennas (e.g., N / 2) can be used to perform each of transmission and reception in full-duplex. In this case, in DL, the type of CSI-RS port or precoder for transmission and the maximum number of transmit ranks that can be sent can vary. In addition, the width of the transmit beam generated by the base station can vary, and the number of beams can also vary. In the case of reception by the base station, the number of transmit antennas and receive antennas for half-duplex can be different from the number of transmit antennas and receive antennas used when performing full-duplex.

[0148] Problem 3

[0149] In half-duplex, the base station can use a wideband to transmit signals. However, when the base station performs full-duplex operation by dividing frequencies or sharing frequencies to perform DL and UL transmission, the base station can apply a value different from the power density previously used for each RE. For example, when transmitting a signal at N dBm in a transmit bandwidth of W MHz, if some of the frequency bands in the frequency band are used in DL and the transmit power remains at N dBm, the transmit power that can be used for each unit frequency can be much higher than when using a widebandwidth. In this case, the signal quality for each unit frequency is different from before, and when the transmit power quality changes, the UE preferably selects an appropriate transmission rank, MCS, etc. by measuring and reporting the signal quality.

[0150] CLI measurement and reporting

[0151] In a method for measuring the UE-to-UE CLI between cells under dynamic TDD, it is assumed that the victim UE receives and measures the signal of the attacking UE during the process of receiving DL in the active BWP. However, when the base station performs full-duplex operation, especially when the base station operates in full-duplex and the UE operates in half-duplex by dividing frequencies, cross-link interference may occur between UEs within the cell. When a specific UE receives a DL signal and other UEs simultaneously transmit UL signals, the UL transmit (Tx) signal is sent as an interference signal to other UEs. Specifically, when performing SB-FD, the signal transmitted by a certain UE at a certain frequency acts as an inter-subband interference received by another UE at a different frequency. Since the interference signal is a signal transmitted by the UE and flowing into the adjacent frequency band, it is difficult to grasp the characteristics of the channel or the signal. Therefore, there is a disadvantage that it is difficult to distinguish the user generating the interference. A method for facilitating SRS-RSRP measurement and CLI-RSSI measurement is needed.

[0152] Additional advantages, objects, and features of the present disclosure will be partly set forth in the following description, and partly will become apparent to those skilled in the art by examination of the following, or may be learned by practice of the present disclosure. The objects and other advantages of the present disclosure may be realized and obtained by the structure particularly pointed out in the written description and claims and the drawings.

[0153] Detailed description of the present invention

[0154] Based on the embodiments of the present disclosure described with reference to the accompanying drawings, the configuration, operation, and other features of the present disclosure will be understood.

[0155] Figure 12 An example of a structure in which resources operating in half-duplex (HD) and resources operating in full-duplex (FD) (such as SB-FD or SS-FD) coexist in a system applicable to the present disclosure is illustrated.

[0156] The present disclosure is described under the assumption of SB-FD operation, in which the cell simultaneously performs DL and UL using different frequency resources (sub-bands) in the same time resource. However, the present disclosure can also be applied when the cell performs SS-FD operation.

[0157] When the cell operates in SBFD, there may be frequency resources (i.e., DL sub-bands and / or guard sub-bands) that cannot be used for UL operation within the UL BWP resources in which the UE operates. For example, in Figure 12 BWP1 only includes DL or UL frequency resources in the HD time slot, but in the SBFD time slot, DL frequency resources and UL frequency resources coexist.

[0158] Existing TDD can allow SBFD operations to be performed during a part of the duration including DL frequency resources or UL frequency resources (e.g., some DL resources in the DL resources or all or some time resources in the time resources indicated as flexible). During the duration allowing SBFD operations, the frequency resources can regard the DL and UL frequency resources and the UL frequency resources as DL sub-bands and UL sub-bands respectively.

[0159] As Figure 12 shown, BWP2 can specify the frequency resources for operation in DL or UL. In this case, as in existing TDD, only DL operation or UL operation is possible. On the other hand, BWP1 is characterized by including a duration only for DL, or only for UL, or a duration during which DL sub-bands and UL sub-bands can be performed simultaneously. Here, some or all of the time resources in the time resources only for DL / only for UL / SBFD (DL sub-band + UL sub-band) can be included in BWP1.

[0160] Configurations for configuring UL sub-bands and DL sub-bands or guard bands can be indicated from the base station to the UE via a high-layer signal (e.g., system information, RRC signaling). If guard band information is indicated, the DL sub-band can be inferred from the guard band and UL sub-band information.

[0161] For example, the DL BWP and UL BWP can include indicators indicating the existing BW. In addition, an indicator indicating the BW of the sub-band can be added, and the common area of the DL sub-band / UL sub-band indicator and the existing BW indicator indicated via the high-layer signal can be determined as the DL sub-band area / UL sub-band area of the DL BWP and UL BWP. As described above, a specific BWP can include two frequency bandwidths.

[0162] As in Figure 12 BWP1, the UL sub-band of the UL BWP can exist in a different area from the DL sub-band of the DL BWP. In other words, the UL BWP having a UL sub-band can exist outside the DL BWP having the DL sub-band of BWP1. As described above, the DL BWP having a DL sub-band and the UL BWP having a UL sub-band can form a BWP pair.

[0163] As in Figure 12 BWP2, there can be a DL BWP / UL BWP, and BWP1 can exist in an adjacent frequency band. The UL sub-band of BWP1 can exist at a frequency adjacent to or slightly away from the DL area of DL BWP2.

[0164] If a UE that can identify the SBFD operation of a base station is specified with a sub - band configuration for the SBFD operation and a time resource for the SBFD operation, the base station can identify that the UE performs the SBFD operation in a specific time resource and can operate considering the configuration of information additionally indicated for the SBFD operation in the specific time resource (e.g., frequency resource allocation, UE Tx power control, gNB Tx power, UE Tx timing, SRS / PUCCH / PUSCH, frequency hopping, CSI - RS configuration, CSI reporting, MIMO configuration, BWP, CG PUSCH, PUSCH repetition, RACH opportunity, etc.).

[0165] Embodiment 1: TDD resource configuration method and transceiver operation for full-duplex support

[0166] Proposal 1 - 1. In addition to the existing cell - specific TDD configuration (common for TDD UL / DL configuration), a new cell - specific TDD configuration that can be interpreted by UEs with new capabilities is additionally indicated.

[0167] The existing TDD configuration of traditional UEs can be used.

[0168] A UE with new capabilities (where the UE identifies that the base station performs an FD operation and can use time / frequency / space resources based on the FD operation) can follow the existing TDD configuration or follow the new TDD configuration. For this, the base station can allow the UE to select the TDD configuration or indicate to the UE to use a specific TDD configuration.

[0169] (1) When allowing the UE to make a selection, it is necessary to report to the base station which TDD configuration the UE has selected. For this, the base station can allocate separate RACH resources. A UE that selects the RACH resources and performs the RACH procedure can be considered to have selected the new TDD configuration and can then perform the new TDD configuration and the RACH procedure in the time / frequency resources indicated for full - duplex and the semi - duplex frequency resources in PDCCH monitoring as well as msg2 PDSCH, msg3 PUSCH, and msg4 PDSCH - PUCCH. Thereafter, operations in the initial BWP can also be performed in the above method.

[0170] (2) The UE can be indicated to use a specific TDD configuration. The UE can be indicated to use either the existing TDD configuration or the new TDD configuration. For example, the TDD configuration can be specified for each BWP.

[0171] (3) In the case of forcing the UE to use only a specific TDD configuration, if the specific TDD configuration is indicated to the UE or selected by the UE, the UE can operate only with the specific TDD configuration regardless of the BWP. Even if a TDD configuration is specified for each BWP, when the TDD configuration to be used in the BWP is not indicated, the TDD configuration to be used can be determined by default.

[0172] If a new cell-specific TDD configuration is indicated, the method for updating it can be as follows.

[0173] (1) If a new cell-specific TDD configuration is indicated, when updating the TDD configuration using the UE-specific TDD configuration or SFI, it can include an indicator indicating whether to update the existing TDD configuration (the previous version of the TDD configuration) or the new TDD configuration.

[0174] (2) Alternatively, if a new cell-specific TDD configuration is indicated, the TDD configuration can be updated based on the new UE-specific TDD configuration.

[0175] The method for configuring the new cell-specific TDD configuration can be as follows.

[0176] (1) The new cell-specific TDD configuration can be indicated independently. The duration of the configuration can be different from the duration of the existing configuration. If no duration is given, it can be the same as the duration of the existing cell-specific TDD configuration.

[0177] (2) The new cell-specific TDD configuration can indicate whether the downlink or the uplink can be used for the time resources specified where full-duplex operation is possible within the existing TDD configuration. Alternatively, the new cell-specific TDD configuration can specify D, F, and U separately from the existing TDD configuration.

[0178] (3) If no reference SCS is given for the new cell-specific TDD configuration, the reference SCS can follow the reference SCS of the existing cell-specific TDD configuration.

[0179] The base station can indicate to the UE the time resources during which the base station can perform the SBFD operation. If the base station indicates to the UE the time resources during which the base station can perform the SBFD operation, the UE can assume that the base station performs the SBFD operation and can perform DL reception or UL transmission in the sub-band DL / sub-band UL region, respectively. The indicator of the time resources during which the base station can perform the SBFD operation can be sent to the UE as a cell-specific configuration and can be specifically sent via higher-layer signaling including system information. For example, the indicator of the time resources during which the base station can perform the SBFD operation can be sent via the UE RRC signal.

[0180] System information may include cell-specific TDD configuration. In the cell-specific TDD configuration, SBFD operation may be indicated in DL or flexibly indicated time resources. In UL time resources, the UE was previously configured to transmit at a lower power than the base station. However, if the base station performs DL transmission at a high power in UL time resources, interference signals with significantly high power may be generated in adjacent cells. Therefore, it is not preferred to indicate the execution of SBFD operation in UL time resources.

[0181] If it is indicated that the base station performs SBFD operation in some or all resources of the DL or flexible region with the existing TDD configuration, it can be assumed that the UE can perform DL reception or UL transmission in the time resources where the SBFD operation of the base station is indicated. In the prior art, since the base station in half-duplex performs DL transmission in the DL region with the TDD configuration, the UE has expected DL reception. However, the UE can perform UL transmission as well as DL reception in the time resources where the base station is indicated to perform SBFD operation.

[0182] In the flexible region, the UE can basically perform DL reception, but the UE can also perform UL transmission based on the indication of the base station. Based on the indicator that can be indicated as DL resources or UL resources in the flexible resources, the UE can perform DL reception or UL transmission. If it is indicated that the base station performs SBFD operation in the flexible region, in the time resources where the base station performs SBFD operation, the UE expects to perform at least sub-band UL transmission, and can also perform wideband UL transmission. However, if it has been indicated that the base station performs SBFD operation in the flexible region, and then UL is specified by a configuration such as UE RRC signal or SFI, the UE can assume that the base station performs existing half-duplex UL reception, or can assume that the base station performs existing half-duplex wideband UL transmission. Additionally, the UE may not expect the base station to perform full-duplex sub-band UL reception operation, or the UE may not expect the base station to perform sub-band UL transmission operation. The UE may expect the base station not to perform full-duplex sub-band UL reception operation, or the UE may expect the base station not to perform sub-band UL transmission operation.

[0183] If the UE is indicated with the time resources in which the base station can perform full-duplex operation, and the UE is indicated with the RACH configuration enabling RACH transmission through the time resources in which the base station can perform full-duplex operation, the UE can perform RACH transmission in the UL frequency domain of full-duplex. If, in addition to the existing TDD configuration, an indicator of the time domain in which the base station can perform full-duplex operation is sent to the UE, and no additional TDD configuration is indicated, the UE can selectively perform DL reception or UL transmission in the time domain in which the base station can perform full-duplex operation. For example, if the UE performs RACH transmission, the UE can use the RACH opportunity defined in the UL frequency resources included in the full-duplex time resources, which are at least several symbols after DL reception. If the UE sends RACH in the UL frequency resources included in the full-duplex time resources, the UE can perform RACH preamble retransmission through the RACH opportunity specified in the RACH configuration.

[0184] If the base station indicates to the UE the time resources for the base station to perform full-duplex operation, and the UE performs RACH operation in the time resources for the base station to perform full-duplex operation, the UE can be indicated with PDCCH monitoring or RACH opportunity information for msg2 RAR reception and whether to specify PDSCH frequency resources (DL sub-bands of SBFD time slots, DL frequency resources other than SBFD) or frequency duration for msg3 PUSCH transmission (UL sub-bands of SBFD time slots, UL frequency resources other than SBFD) or frequency resources for PDCCH monitoring and msg4 PDSCH reception, the frequency position of PUCCH transmission for msg4 PDSCH, or PUCCH resources, etc.

[0185] Alternatively, some preambles among the existing RACH opportunities can be indicated to the UE that knows and can perform the full-duplex operation of the base station, and the base station can allow the RACH preamble to be sent to the UE.

[0186] If the UE sends a RACH preamble using the RACH opportunity specified in the full-duplex time resource or by specifying some of the preambles of the existing RACH opportunity, the UE may perform PDCCH monitoring in the time resource capable of full-duplex or the time resource capable of half-duplex at the base station to receive the RAR. If the time resource for msg3 PUSCH transmission is specified in the RAR message, in the method of the UL transmission frequency resource location or UL hopping in the time resource where the base station indicates to the UE that the base station can perform the SBFD operation based on the location of the time resource, the UE may follow the indicator for full-duplex, and the UE may perform interpretation and transmission by following the existing indicator in the non-SBFD time resource. For Msg4 PDSCH, for the PUCCH transmission of Msg4 PDSCH, based on whether the base station can perform full-duplex operation or half-duplex operation, the UE may perform reception and transmission suitable for the time resource by considering the frequency domain / antenna information / UL hopping and the additional information related to full-duplex.

[0187] Figure 13 Examples of information indicating downlink resources and uplink resources based on antenna configurations applicable to the systems of the present disclosure are illustrated.

[0188] Embodiment 2: MIMO technology and transceiver operation for half-duplex and full-duplex support

[0189] When the base station performs full-duplex (SBFD or SSFD), the base station may use antennas dedicated to each link direction to simultaneously perform DL transmission and UL reception. To this end, at least two separate antennas or antenna sets or panels may be used. At a specific time, only DL transmission or only UL reception may be performed. In this instance, the base station may use some of the at least two separate antennas or antenna sets or panels. Alternatively, the base station may use all antennas or antenna sets or panels to perform transmission or reception. Alternatively, the base station may use the same antenna to simultaneously perform DL / UL. If the UE supports full-duplex operation, separate antennas may be used for DL reception and UL transmission, or one antenna may be used to perform DL reception and UL transmission.

[0190] A base station supporting full-duplex operation notifies a UE that knows whether the base station can perform full-duplex operation of whether the base station can perform full-duplex operation via a high-layer signal (e.g., system information, RRC signal, etc.). If the base station notifies the UE of whether the base station can perform full-duplex operation, additional information for full-duplex operation can be sent to the UE. For example, the UE can be additionally instructed on CSI-RS configuration, SRS configuration, frequency hopping, MIMO configuration (number of antennas, codebook, etc.), DL Tx power information, etc. In the case where the user is in the RRC connected state, each piece of information can be additionally indicated in a configuration including configurations such as DL / UL.

[0191] The base station can send time information for performing full-duplex operation to the UE. The UE receiving the time information for performing full-duplex operation can determine that the base station will perform full-duplex operation in the indicated time resource and can use the time information for performing full-duplex operation to receive DL signals or transmit UL signals.

[0192] Proposal 2-1. DL signal and UL SRS transmission resources

[0193] The base station separately indicates to the UE information about the signal to be received in a specific duration (e.g., the duration in which half-duplex may be possible or the duration in which full-duplex may be possible) or information about the signal to be transmitted in the specific duration. Alternatively, the base station indicates the following information: configuring the DL signal or UL SRS used only in the half-duplex duration; or configuring the DL signal and / or UL signal used in the half-duplex duration and the full-duplex duration; or configuring the DL signal and / or UL signal used in the full-duplex duration.

[0194] The base station designates the source of the TCI state among the candidate reference signals available in the half-duplex duration in half-duplex and designates the source of the TCI-state among the candidate reference signals available in the full-duplex duration in full-duplex.

[0195] Figure 13 The following example is illustrated. In this example, for SBFD where the frequency resource is divided (F1, F2) and is used for DL purposes and UL purposes respectively, when (F1, F2) is only used for DL, it is (D D), when (F1, F2) is only used for UL, it is (U U), and when (F1, F2) is used for DL and UL respectively, it is (D U) or (U D), each of the multiple antennas (A1, A2) is used by frequency and by direction.

[0196] Figure 13 The information, for example, indicates to perform one of the following operations:

[0197] (Operation 1) Only DL (DD) in all F1 and F2 via antenna 1 (A1)

[0198] (Operation 2) Only UL (UU) in all F1 and F2 via antenna 1 (A1)

[0199] (Operation 3) Only DL (DD) in all F1 and F2 via antenna 2 (A2)

[0200] (Operation 4) Only UL (UU) in all F1 and F2 via antenna 2 (A2)

[0201] (Operation 5) DL in F1 via antenna 1 (A1) and UL in F2 via antenna 2 (A2)

[0202] (Operation 6) DL in F1 via antenna 2 (A2) and UL in F2 via antenna 1 (A1)

[0203] When the base station only uses antenna 1 as in (Operation 1) and (Operation 2) while performing half-duplex, or when the base station performs full-duplex and uses antenna 1 to perform F1 DL and uses antenna 2 to perform F2 UL as in (Operation 5), the DL of antenna 1 and F1 in (Operation 5) of full-duplex can assume the reciprocity of the channel with the UL of antenna 1 and F1 in (Operation 2) of half-duplex.

[0204] On the other hand, it is difficult to assume the reciprocity of antenna 2 and F2 UL in (Operation 5) of full-duplex with any DL in (Operation 1) and (Operation 2).

[0205] The advantage of TDD is that it obtains spatial information from the signal received in the UL by utilizing the reciprocity characteristics of the DL channel and the UL channel, and calculates and applies the beamforming weights transmitted in the DL. However, in this case, it becomes difficult to use the DL transmission that utilizes the signal of A2 UL in (Operation 5) in full-duplex.

[0206] Another advantage of TDD is that the UE can find a receive (Rx) beam suitable for DL reception while receiving the DL signal, and can use the reciprocity characteristics of DL and UL to use the receive beam as the UL transmit beam. The reference signal as the basis for DL reception can be SSB / PBCH or CSI-RS, and when transmitting SRS using the Rx beam of the UE obtained based on the reference signal, the Tx beam information used in SRS can be used to transmit another UL signal. However, when the UE transmits UL in F2 of (Operation 5) in full-duplex, it is difficult for the UE to assume the reciprocity between the DL signal and the UL signal because the base station antenna A2 for receiving UL and the antenna A1 for transmitting DL are different from each other.

[0207] Only DL or only UL has been described above using one of antennas A1 and A2. However, when both antennas A1 and A2 are used for only DL transmission and only UL reception, there are cases where reciprocity is difficult to establish even when A1 or A2 is used for each of DL and UL. As a method of solving this problem, if only DL or only UL is performed using a specific antenna in half-duplex, (1) only A1 DL transmission and only UL reception, and (2) only A2 DL transmission and only UL reception can be performed, and in full-duplex, (3) A1 DL transmission and A2 UL reception, and (4) A1 UL reception and A2 DL transmission can all be performed. Thus, full-duplex A2 UL reception can be performed in half-duplex A2 only DL transmission, and reciprocity between the two can be guaranteed. This also applies to other cases. For this operation, the base station needs to notify the UE of information on the mapping relationship between the source resource of the TCI-state and a specific SRS.

[0208] Proposal 2-2. TCI-state or SRI indication

[0209] When there are multiple TCI-states or SRIs, the base station configures the TCI-state or SRI to be used in the time resources capable of full-duplex and indicates it to the UE. Specifically, when transmission and reception are indicated by a single resource indicator (such as repeated transmission or configured grant) and are performed multiple times, information such as the TCI-state or SRI used in the time resources capable of half-duplex and the time resources capable of full-duplex is configured and indicated to the UE, and the UE performs transmission and reception based on this information.

[0210] Proposal 2-3. Antenna configuration

[0211] The base station additionally indicates the antenna configuration or the configuration related to MIMO, as Figure 13 in the embodiment of. The configuration for which time resource it can be specified for additional indication can be specified. Alternatively, if there is an indicator indicating that it is a time resource capable of full-duplex, the UE assumes that it can be used in the time resource specified according to the indicator.

[0212] Proposal 2-4. DL power

[0213] The base station indicates the value of the DL power in the time resources using SBFD to the UE. The indication of the DL power can be indicated in various ways. For example, it can indicate how much power difference compared to the transmission power of a specific signal (e.g., SSB or CSI-RS).

[0214] However, as described above, when the base station indicates additional information related to DL transmission, it can be assumed that the value of the DL power is used in the frequency resources for DL in the time resources indicated to be applied to SB-FD.

[0215] Figure 14 Illustrates an example of a separate Tx / Rx antenna array model applicable to the system of the present disclosure.

[0216] Figure 15 Illustrates an example of (a) conventional TDD using a shared Tx / Rx antenna array applicable to the system of the present disclosure.

[0217] Figure 16 Illustrates an example of (b) SBFD antenna configuration option 1 (Method 1) applicable to the system of the present disclosure.

[0218] Figure 17 Illustrates an example of (c) SBFD antenna configuration option 2 (Method 2-1) applicable to the system of the present disclosure.

[0219] Figure 18 Illustrates an example of (d) SBFD antenna configuration option 2 (Method 2-2) applicable to the system of the present disclosure.

[0220] Figure 19 Illustrates an example of (e) SBFD antenna configuration option 3 (Method 3-1) applicable to the system of the present disclosure.

[0221] Figure 20 Illustrates an example of (f) SBFD antenna configuration option 3 (Method 3-2) applicable to the system of the present disclosure.

[0222] Figures 15 to 20 Illustrates examples of antenna configurations for conventional TDD and SBFD.

[0223] The following is part of 3GPP TR38.858v1.0.0 (September 2023).

[0224] TR 38.858v1.0.0 (2023.9)

[0225] 6.1.2 Effects and potential enhancements for transmission and reception

[0226] Studies the effects and potential enhancements for UL transmission and DL reception for SBFD symbols and non-SBFD symbols across at least including the following:

[0227] - PDCCH, scheduled / configured PUCCH / PUSCH / PDSCH, without repetition in SBFD symbols and non-SBFD symbols

[0228] - Scheduled / configured SRS / CSI-RS in SBFD symbols and non-SBFD symbols

[0229] -Scheduled / Configured TBoMS across SBFD symbols with or without repetition and non-SBFD symbols

[0230] -Multi-PUSCH / PDSCH scheduled by a single DCI in SBFD symbols and non-SBFD symbols

[0231] -Scheduled / Configured PDSCH / PUSCH / PUCCH with repetition across SBFD symbols and non-SBFD symbols

[0232] Note: Consider inter-slot / intra-slot / inter-repetition / inter-group hopping of DMRS bundles for PUSCH / PUCCH (if applicable).

[0233] Examples of potential enhancements include:

[0234] -Resource allocation in the frequency domain including hopping

[0235] -Resource allocation in the time domain

[0236] -Power domain

[0237] -Spatial domain

[0238] RAN1 studied the impact and benefits of potential enhancements to resource allocation in the frequency domain for SBFD operation, considering the misaligned boundaries between resource block groups / reporting subbands and SBFD subbands, including at least the following items:

[0239] -RBG for PDSCH RA type 0

[0240] -CSI reporting configuration

[0241] -CSI-RS resource configuration

[0242] -PRG for PDSCH

[0243] For resource allocation in the frequency domain in the case of misaligned boundaries between RBG and SBFD subbands, RAN1 studied whether a part of the DL RBG inside / outside the DL subband and a part of the UL RBG inside / outside the UL subband could be used. It is agreed that for SBFD-aware UEs, a part of the DL RBG inside the DL subband can be used, and a part of the UL RBG inside the UL subband can be used to achieve better resource utilization. It is agreed that at least for semi-static SBFD, a part of the RBG outside the DL subband cannot be used for DL reception, and a part of the RBG outside the UL subband cannot be used for UL transmission.

[0244] For semi-static SBFD, for CSI reporting sub-bands that overlap with the SBFD sub-band boundaries, it is agreed that CSI reports are obtained based on CSI-RS resources excluding CSI-RS resources in the DL sub-bands used for SBFD-aware UEs.

[0245] For semi-static SBFD, for CSI-RS resources that overlap with the SBFD sub-band boundaries, it is agreed that only CSI-RS resources within the DL sub-band are valid for SBFD-aware UEs.

[0246] For SBFD-aware UEs, at least the following issues regarding the PDSCH are studied:

[0247] PRGs of sizes 2 and 4 that overlap with the sub-band boundaries

[0248] Wideband precoders in the case of discontinuous DL sub-bands

[0249] For PRGs that overlap with the sub-band boundaries, if a part of the DL PRG within the DL sub-band can be used, better scheduling flexibility and resource utilization can be achieved. However, due to the limited RBs in the partial PRG, compared with the PRG, degraded channel estimation quality in the partial PRG is expected. Note that if this feature is supported, the UE complexity may increase.

[0250] If the PRG is determined to be wideband, the following two options are studied.

[0251] Option 1: Discontinuous frequency resources across two DL sub-bands can be allocated, but the frequency resources within each DL sub-band are continuous

[0252] Option 2: Discontinuous frequency resources across two DL sub-bands cannot be allocated

[0253] It is agreed that Option 1 can achieve better scheduling flexibility and higher DL data rates. Compared with Option 2, Option 1 requires the UE to handle two discontinuous segments of continuous RBs, which may increase the UE complexity for channel estimation.

[0254] The frequency resource allocation of CSI-RS across downlink sub-bands for SBFD-aware UEs is studied considering the following options:

[0255] - Option 1: Two consecutive CSI-RS resources that are linked

[0256] - Option 2: One CSI-RS resource

[0257] - Option 2-1: Discontinuous CSI-RS resource allocation

[0258] - Option 2-2: One continuous CSI-RS resource allocation with discontinuous CSI-RS resources obtained by excluding frequency resources outside the DL sub-bands

[0259] For all options, there is no impact on CSI-RS sequence generation. Option 1 requires additional signaling to link two CSI-RS resources in two DL sub-bands. Option 2-1 requires a new RRC structure to configure discontinuous RBs for one CSI-RS resource, which may require additional signaling overhead. Option 2-2 can reuse the existing signaling design configured for CSI-RS resources. Option 2-2 can be used to address potential misaligned boundaries between CSI-RS resource configuration and SBFD sub-bands. Further discussion on UE complexity is needed due to the maximum number of configured CSI-RS resources and / or the UE's ability to handle discontinuous CSI-RS.

[0260] For UL transmission and DL reception across SBFD symbols and non-SBFD symbols in different time slots (each transmission / reception within a time slot has all SBFD symbols or all non-SBFD symbols), the following options are studied for SBFD-aware UEs:

[0261] - Option 1: Transmission / reception is limited to only SBFD symbols or only non-SBFD symbols

[0262] - Option 2: Transmission / reception can be in SBFD symbols and non-SBFD symbols

[0263] UL transmission and DL reception across SBFD symbols and non-SBFD symbols include the following:

[0264] - PDSCH / PUSCH / PUCCH repetition

[0265] - SPS PDSCH / CG PUSCH

[0266] - TBoMS

[0267] - Multiple PUSCH / PDSCH scheduled by a single DCI

[0268] - Periodic / semi-persistent SRS / CSI-RS / PUCCH

[0269] - PDCCH

[0270] Option 1 can be implemented through gNB configuration or scheduling to ensure that all transmission / reception opportunities are restricted to SBFD symbols or non-SBFD symbols. Alternatively, Option 1 can be implemented through additional indication or rules to determine that transmission / reception opportunities are valid within one symbol type and invalid within another symbol type. The frequency resources, power control, and beam / space relationships for all transmission / reception opportunities can be the same for Option 1, but can be different for Option 2. If different, additional specification work may be required. If transmission / reception in another symbol type is postponed, Option 1 may or may not increase the transmission / reception latency, and if transmission / reception in another symbol type is discarded, Option 1 may reduce the performance. Option 2 may or may not reduce the transmission / reception latency and improve the coverage.

[0271] For UL transmission and DL reception across SBFD symbols and non-SBFD symbols in different time slots (each transmission / reception within a time slot has all SBFD symbols or all non-SBFD symbols), if the transmission / reception can be located in SBFD symbols and non-SBFD symbols with different available resources, study at least the following frequency resource allocation options for PDSCH, CSI-RS, PUSCH, PUCCH, SRS for SBFD-aware UEs.

[0272] Option 1: Separate FDRA determination for SBFD time slots and non-SBFD time slots.

[0273] Option 1-1: Separate FDRA configuration / indication for SBFD time slots and non-SBFD time slots

[0274] Option 1-2: Separate frequency resource options determined for SBFD time slots and non-SBFD time slots based on a single FDRA configuration / indication Option 1-3: Single FDRA configuration / indication and RB offset

[0275] Option 2: Perform rate matching or puncturing on RBs outside the DL / UL subbands for DL / UL channels / signals.

[0276] Option 3: Discard or postpone DL / UL channels / signals overlapping with RBs outside the DL / UL subbands in SBFD time slots.

[0277] Note: Different options can be studied for different signals / channels.

[0278] RAN1 studied whether the transmission / reception opportunities of physical channels / signals can be mapped to SBFD symbols and non-SBFD symbols within a time slot for a UE, and whether the UE can perform transmission / reception at the opportunities mapped to SBFD symbols and non-SBFD symbols, including:

[0279] - Use cases including the positions and quantities of transition points between SBFD symbols and non-SBFD symbols in a time slot.

[0280] - Potential benefits (if any)

[0281] - Phase continuity

[0282] - Potential interruptions in transmission / reception during transitions

[0283] - Required guard time (if any)

[0284] - Potential impact on performance

[0285] - Impact on link adaptation, channel estimation, and other processes

[0286] - UL transmission timing (if any)

[0287] - Implementation complexity

[0288] - Applicability to SBFD-aware UEs and non-SBFD-aware UEs

[0289] - Note: There are scenarios where more than one transmission overlaps with SBFD symbols and non-SBFD symbols, and some may or may not face the aspects listed above.

[0290] - Note: This study does not imply RAN1 conventions regarding time slots composed of SBFD symbols and non-SBFD symbols.

[0291] For physical channel / signal timing (if any) mapped to SBFD symbols and non-SBFD symbols within a time slot, the following options for UE transmission / reception can be considered during the specification phase.

[0292] Option 1: The UE does not transmit or receive physical channels / signals within the time slot.

[0293] Option 2: The UE can transmit or receive physical channels / signals within the time slot only under certain conditions.

[0294] The conditions can depend on at least the following: whether phase continuity can be maintained across SBFD symbols and non-SBFD symbols, whether there are the same or different transmission / reception parameters (e.g., power control, spatial / QCL, UL timing, etc. applied in SBFD symbols and non-SBFD symbols), and whether there is a guard period between SBFD symbols and non-SBFD symbols, etc.

[0295] Other options are not excluded.

[0296] For SBFD-aware UEs, in the case where CSI-RS instances appear in both SBFD symbols and non-SBFD symbols in a periodic manner (each CSI-RS resource within a time slot has all SBFD symbols or all non-SBFD symbols), study the following options for CSI reporting associated with periodic / semi-persistent CSI-RS:

[0297] Option 1: Two CSI-ReportConfigs, one associated with SBFD symbols and the other associated with non-SBFD symbols

[0298] Option 1-1: One CSI-ReportConfig is associated with a CSI-RS limited to SBFD symbols, and a second CSI-ReportConfig is associated with a second CSI-RS limited to non-SBFD symbols;

[0299] Option 1-2: Two CSI-ReportConfigs are associated with the same CSI-RS. The CSI report associated with one CSI-ReportConfig is obtained only based on CSI-RS instances in SBFD symbols. The CSI report associated with the second CSI-ReportConfig is obtained only based on CSI-RS instances in non-SBFD symbols.

[0300] Option 2: One CSI-ReportConfig associated with both SBFD symbols and non-SBFD symbols

[0301] Option 2-1: One CSI-ReportConfig is associated with two CSI-RSs limited to SBFD symbols and non-SBFD symbols respectively. Separate CSI measurement results are obtained based on the first CSI-RS and the second CSI-RS respectively.

[0302] Option 2-2: One CSI-ReportConfig is associated with one CSI-RS. The CSI report is obtained based on the CSI-RS, which can be in SBFD symbols or non-SBFD symbols at different time instances.

[0303] Note that whether a CSI-RS resource can be used for SBFD symbols and non-SBFD symbols can depend on, for example, the gNB implementation of the same / different antenna configurations in the two types of symbols.

[0304] According to the existing specifications, Option 1-1 can be supported by gNB configuration with appropriate periodicity to ensure that the CSI-RS associated with each CSI-ReportConfig is limited to SBFD symbols or non-SBFD symbols. However, it may limit the gNB configuration flexibility, and enhancements can be considered through additional indications or rules to determine that the CSI-RS is valid within one symbol type and invalid in the other symbol type.

[0305] Option 2-2 can be supported according to the existing specifications to configure measurement limitations so that the UE does not average CSI measurement results across SBFD symbols and non-SBFD symbols.

[0306] It may be beneficial to have separate resources, FH parameters, UL power control parameters, and / or beam / space relationships for SRS, PUCCH, and PUSCH on SBFD symbols and non-SBFD symbols in different time slots.

[0307] The gNB can configure the CORESET and search space in such a way that the MO of the search space appears in SBFD symbols or non-SBFD symbols, or the MO of the search space appears in both SBFD symbols and non-SBFD symbols, but the associated CORESET does not overlap with the boundary of the DL sub-band in SBFD symbols.

[0308] If it is beneficial to agree that the CORESET and search space are configured such that the MO of the search space appears in both SBFD symbols and non-SBFD symbols and the associated CORESET overlaps with the boundary of the DL sub-band in SBFD symbols, then for SBFD-aware UEs, at least the following options can be considered:

[0309] Option 1: Separate the valid resources for the CORESET in SBFD symbols and non-SBFD symbols.

[0310] Option 2: Perform rate matching or puncturing on the REGs of the PDCCH outside the DL sub-band.

[0311] Option 3: If the UE is mapped to one or more REs that overlap with the REs outside the DL sub-band, the UE does not monitor PDCCH candidates.

[0312] Option 4: Discard the search space when the associated CORESET overlaps with the RB outside the DL sub-band

[0313] Option 5: Separate the search space associated with the CORESET in SBFD symbols and non-SBFD symbols

[0314] Note: These options apply at least to USS.

[0315] 7.2 Evaluation Method

[0316] 7.2.1 System-Level Simulation

[0317] gNB Antenna Configuration

[0318] The detailed gNB antenna configuration for SBFD evaluation can be found in Appendix A.5.

[0319] Appendix A.5

[0320] A.5 gNB Antenna Configuration and Transmission Power for SBFD

[0321] For the evaluation of traditional TDD operation, the BS uses the same antenna array for downlink transmission and uplink reception, which can be referred to as a shared Tx / Rx antenna array for describing the evaluation assumptions. For the evaluation of SBFD operation, the BS uses separate panels for simultaneous downlink transmission and uplink reception, which can be referred to as a separate Tx / Rx antenna array for describing the evaluation assumptions.

[0322] The separate Tx / Rx antenna array for describing the evaluation assumptions can be modeled by two panels, as Figure 14 shown.

[0323] - Traditional parameters (M, N, P, M g , N g ), (d H , d V ), and (d g,H , d g,V ) are used to describe each panel group:

[0324] - M: The number of vertical antenna elements within a panel in one polarization

[0325] - N: The number of horizontal antenna elements within a panel in one polarization

[0326] - P: The number of polarizations

[0327] - M g : The number of panels in a column within a panel group.

[0328] - N g : The number of panels in a row within a panel group.

[0329] - d g,H : The antenna panel spacing in the horizontal direction within a panel group.

[0330] - d g,V : The antenna panel spacing in the vertical direction within a panel group.

[0331] - The enterprise shall report the separation of two panel groups. Introduce the new parameters (d Figure 14 as shown a,H , d a,V ).

[0332] - d a,H : The panel group spacing in the horizontal direction. Usually, d a,H = 0.

[0333] - d a,V : The panel group spacing in the vertical direction.

[0334] To evaluate and compare SBFD and traditional TDD, three options can be used.

[0335] - SBFD antenna configuration option - 1: The total number of antenna elements of the antenna array for SBFD is the same as that of the antenna array for traditional TDD. The total number of TxRUs of the antenna array for SBFD is the same as that of the antenna array for traditional TDD.

[0336] - SBFD antenna configuration option - 2: The total number of antenna elements of the antenna array for SBFD is twice that of the antenna array for traditional TDD. The total number of TxRUs of the antenna array for SBFD is the same as that of the antenna array for traditional TDD.

[0337] - SBFD antenna configuration option - 3: The total number of antenna elements of the antenna array for SBFD is the same as that of the antenna array for traditional TDD. The total number of TxRUs of the antenna array for SBFD is half of that of the antenna array for traditional TDD.

[0338] These options are further illustrated with the following example:

[0339] As Figure 15 shown, for traditional TDD using a shared Tx / Rx antenna array, assume the antenna configuration is (M, N, P, M g , N g ; M p , N p ). The total number of TxRUs is K = PM p N p M g N g , and the total number of antenna elements is L = PMNM g N g .

[0340] For the SBFD antenna configuration option - 1, the separate Tx / Rx antenna array has two panel groups, and the antenna configuration for each panel group is (M, N, P, M g / 2, N g ). The total number of TXRUs is K = PM p N p M g N g (same as traditional TDD), and the total number of antenna elements is L = PMNM g N g (same as traditional TDD). One method of using TXRUs and antenna elements in DL / UL / SBFD time slots / symbols is illustrated below. Other methods are not excluded, and other methods can be reported by enterprises.

[0341] - Method 1 (see Figure 16 ):

[0342] - In the DL time slot, L / 2 antenna elements on panel group #1 are connected to K / 2 Tx chains in TxRU group #1, and L / 2 antenna elements on panel group #2 are connected to K / 2 Tx chains in TxRU group #2.

[0343] - In the UL time slot, L / 2 antenna elements on panel group #1 are connected to K / 2 Rx chains in TxRU group #1, and L / 2 antenna elements on panel group #2 are connected to K / 2 Rx chains in TxRU group #2.

[0344] - In the SBFD time slot, L / 2 antenna elements on panel group #1 are connected to K / 2 Tx chains in TxRU group #1, and L / 2 antenna elements on panel group #2 are connected to K / 2 Rx chains in TxRU group #2.

[0345] For the SBFD antenna configuration option - 2, the separate Tx / Rx antenna array has two panel groups, and the antenna configuration for each panel group is (M, N, P, M g , N g ). The total number of TXRUs is K = PM p N p M g N g (same as traditional TDD), and the total number of antenna elements is 2L = 2PMNM g N g (twice the total number of antenna elements for traditional TDD). Two methods of using TXRUs and antenna elements in DL / UL / SBFD time slots / symbols are illustrated below. Other methods are not excluded, and other methods can be reported by enterprises.

[0346] - Method 2-1 (see Figure 17 ):

[0347] - In the DL time slot, L antenna elements on panel group #1 are connected to K Tx chains.

[0348] - In the UL time slot, L antenna elements on panel group #2 are connected to K Rx chains.

[0349] - In the SBFD time slot, L antenna elements on panel group #1 are connected to K Tx chains, and L antenna elements on panel group #2 are connected to K Rx chains.

[0350] - Method 2-2 (see Figure 18 ):

[0351] - In the DL time slot, L antenna elements on panel group #1 are connected to K Tx chains.

[0352] - In the UL time slot, L antenna elements on panel group #1 are connected to K Rx chains.

[0353] - In the SBFD time slot, L antenna elements on panel group #1 are connected to K Tx chains, and L antenna elements on panel group #2 are connected to K Rx chains.

[0354] For the SBFD antenna configuration option -3, the separate Tx / Rx antenna arrays have two panel groups, and the antenna configuration for each panel group is (M, N, P, M g / 2, N g ). The total number of TXRUs is K / 2 = PM p N p M g N g / 2 (half of the total number of TXRUs for traditional TDD), and the total number of antenna elements is L = PMNM g N g (the same as traditional TDD). The following illustrates the method of using TXRUs and antenna elements in DL / UL / SBFD time slots / symbols. Other methods are not excluded, and other methods can be reported by enterprises.

[0355] - Method 3-1 (see Figure 19 ):

[0356] - In the DL time slot, L / 2 antenna elements on panel group #1 are connected to K / 2 Tx chains.

[0357] - In the UL time slot, L / 2 antenna elements on panel group #2 are connected to K / 2 Rx chains.

[0358] - In the SBFD time slot, L / 2 antenna elements on panel group #1 are connected to K / 2 Tx chains, and L / 2 antenna elements on panel group #2 are connected to K / 2 Rx chains.

[0359] - Method 3-2 (see Figure 20 ):

[0360] - In the DL time slot, L / 2 antenna elements on panel group #1 are connected to K / 2 Tx chains in TxRU group #1.

[0361] - In the UL time slot, L / 2 antenna elements on panel group #1 are connected to K / 2 Rx chains in TxRU group #1.

[0362] - In the SBFD time slot, L / 2 antenna elements on panel group #1 are connected to K / 2 Tx chains in TxRU group #1, and L / 2 antenna elements on panel group #2 are connected to K / 2 Rx chains in TxRU group #1.

[0363] For SBFD evaluation, it is assumed that the maximum BS transmit power is proportional to the number of Tx chains used for transmission

[0364] - For SBFD antenna configuration option -1,

[0365] - In DL-only symbols, the maximum BS transmit power for SBFD is the same as the maximum BS transmit power for traditional TDD

[0366] - In SBFD symbols, the maximum BS transmit power for SBFD is half of the maximum BS transmit power for traditional TDD

[0367] - For SBFD antenna configuration option -2, in both DL-only symbols and SBFD symbols, the maximum BS transmit power for SBFD is always the same as the maximum BS transmit power for traditional TDD

[0368] - For SBFD antenna configuration option -3, in both DL-only symbols and SBFD symbols, the maximum BS transmit power for SBFD is always half of the maximum BS transmit power for traditional TDD

[0369] For the BS transmit power of SBFD, option -1 is used as the baseline. Option -2 can also be evaluated.

[0370] - Option -1: Compared with DL-only symbols (as in traditional systems), no power boost is assumed for SBFD symbols, i.e., the BS transmit power spectral density per Tx chain remains the same for SBFD symbols and DL-only symbols

[0371] - Option - 2: Assume a power boost for SBFD symbols compared to only DL symbols, i.e.,

[0372] - The DL symbols in SBFD operation have the same PSD as the PSD used in TDD DL symbols

[0373] - For SBFD symbols, its PSD is scaled according to the number of RBs in the DL sub - band, e.g.,

[0374]

[0375] - is the BS transmit power spectral density per Tx chain in SBFD symbols

[0376] - is the BS transmit power spectral density per Tx chain in only DL symbols

[0377] - BW carrier is the system bandwidth and BW DL subbands is the total bandwidth of the DL sub - band

[0378] Embodiment 3: Method for measuring and reporting UE-to-UE CLI within a cell for full-duplex support

[0379] In the time resources indicated to operate in SBFD, a user can send UL signals in the UL sub - band, and another user can receive DL signals in the DL sub - band. If the base station performs DL and UL simultaneously in the DL sub - band and the UL sub - band, the UL signals sent by the user in the UL sub - band can also be received by other users in the DL sub - band.

[0380] If both the DL sub - band and the UL sub - band are included in a band dedicated only to DL, such as Figure 12 in BWP1 of

[0381] then the user performing SBFD can receive DL signals in the DL sub - band and also receive signals in the UL sub - band simultaneously. Figure 12 Or, as in

[0382] in BWP1 and BWP2 of

[0383] a user can send UL signals in the UL sub - band of BWP1, and another user can receive DL signals in the DL frequency region of the DL BWP for BWP2.

[0384] If the base station allows the UE to perform DL reception during the SBFD available duration, then if the UE has been configured with inter-subband UE-to-UE CLI measurements in the time resource, the UE can perform inter-subband UE-to-UE CLI measurements in the UL subband frequency band that exceeds the BW duration of the DL subband of the DL BWP. Specifically, if the UE is instructed to perform SRS-RSRP measurements, the UE receives the SRS signal of another UE at the SRS transmission frequency indicating the measurement, and measures the signal quality. In this instance, the base station can configure a measurement gap or a downlink rate matching resource for the UE, so that the UE can not receive DL signals during the SRS signal quality measurement duration, or can allow the UE to select the reception of DL signals or the execution of SRS measurements based on the priority of the type of DL received (Rx) signals. The measurement gap can also be expressed as a downlink rate matching resource.

[0385] The base station can provide the UE with information about the ID of a specific user or the SRS resource ID, and can indicate an indicator notifying that the SRS resource belongs to a user existing in the same cell, or can indicate a measurement resource or a resource set for performing measurements on users existing in the same cell.

[0386] The measured value can be different from the value transmitted between subbands. When reporting the measured value, the base station can indicate correction information to the UE so that a certain value can be corrected. Alternatively, the measured value can be reported to the base station as it is, and the base station can correct the intensity of the value based on the frequency position.

[0387] The above expression "the frequency band exceeding the duration of the DL BWP" can be interpreted as the UL subband of the UL BWP of the DL subband of the DL BWP exceeding BWP1 in Figure 12 or the UL subband of the UL BWP in a different frequency region different from this subband. Alternatively, the above expression "the frequency band exceeding the duration of the DL BWP" can mean the UL subband region of the BWP1 of the DL region of the DL BWP exceeding BWP2 in Figure 12

[0388] If the BW of the DL BWP is wide and the BW includes both the sub - bands of the DL BWP and the sub - bands of the UL BWP, as in BWP1, there can be the ability to receive signals in the UL sub - bands of the UL BWP outside the sub - band region of the DL BWP. Thus, the UE can receive signals and measure CLI in the sub - bands of the UL BWP outside the sub - band region of the DL BWP of BWP1. In this case, when measuring SRS - RSRP, SRS can be received outside the sub - band region of the DL BWP of BWP1, and SRS - RSRP can be measured. If the UL signal of the interfering user and the DL signal of the base station can be received within a specific time range, the two simultaneously received signals can be distinguished by frequency, and SRS - RSRP measurement and DL signal processing can be performed. In cases where it is difficult for the UE to process simultaneously, or when the two signals are received outside the specific time range, one of the two actions is performed: processing the DL signal or performing UL SRS - RSRP measurement.

[0389] When the base station performs SBFD (or SSFD) operation, intra - cell UE - to - UE co - channel CLI may occur. In this case, SRS - RSRP can perform L1 / L2 or L3 measurement / reporting.

[0390] Proposal 3 - 2. Inter - sub - band CLI - RSSI measurement

[0391] When performing inter - sub - band CLI measurement, the base station can specify the sub - bands for the UE to measure CLI - RSSI, and the UE can perform the measurement in this resource. When the DL BWP consists of discontinuous frequencies, the base station can configure the measurement resources for the discontinuous frequencies.

[0392] If N resource indicators are used to indicate the sub - bands belonging to discontinuous resource frequencies and measurements are performed simultaneously within one DL BWP, the CLI - RSSI measured in each resource can be calculated as one value and reported. In this case, the reported resource ID can specify the ID of a specific resource. However, it can be interpreted that, based on the agreement between the base station and the UE, or the indication of the base station, or the recommendation of the UE, the measurement information reported from a specific resource ID is the same as or represented by the measurement information measured from another resource.

[0393] Different from the above SRS - RSRP measurement, the interference signals received in the DL region using RSSI can be measured and reported.

[0394] The following is part of 3GPP TR38.858 v1.0.0 (September 2023).

[0395] TR38.858 v1.0.0(2023.9)

[0396] 6.2 UE - to - UE CLI Disposal Scheme Specific to SBFD

[0397] For UE - to - UE inter - sub - band CLI measurement, at least the following methods are studied:

[0398] - Method #1: The victim UE measures RSSI in the DL sub - band

[0399] - Method #2: The victim UE measures the RSRP of the attacking UE in the UL sub - band

[0400] - Method #3: The victim UE measures RSSI in the UL sub - band

[0401] - Note: When the UL sub - band is restricted within the DL BWP, the restriction of measuring CLI only within the DL BWP in Release 16 does not prohibit the UE from measuring CLI in the UL sub - band.

[0402] For UE - to - UE CLI - RSSI measurement / reporting across downlink sub - bands, the following methods are studied. Note that Alternative #1 and Alternative #2 are supported in the existing specifications.

[0403] - Alternative #1: Separate CLI - RSSI measurement resources / reporting in each DL sub - band

[0404] - Alternative #2: CLI - RSSI measurement / reporting only in one DL sub - band

[0405] - Alternative #3: CLI - RSSI measurement / reporting based on non - contiguous CLI - RSSI resources across downlink sub - bands

[0406] Alternative #1 allows flexible configuration of measurement reporting in one or two DL sub - bands, but in terms of UE capability budget, it consumes multiple CLI - RSSI measurement resources. Alternative #2 restricts the gNB configuration flexibility and does not consider whether the CLI is asymmetric across two DL sub - bands. From the perspective of UE capabilities, this method does not consume multiple CLI - RSSI measurement resources. Alternative #3 requires additional specification work to support non - contiguous CLI - RSSI resource allocation across downlink sub - bands. This method is similar to non - contiguous CSI - RS resource allocation. A single CLI - RSSI report based on non - contiguous CLI - RSSI resources may be sufficient. From the perspective of UE capabilities, this method does not consume multiple CLI - RSSI measurement resources. Note that it does not imply support for L1 - based or L2 - based measurement.

[0407] If orthogonal resources are allocated to different attacking UE, Method #2 and Method #3 can be used to identify the attacking UE. Method #2 and Method #3 can at least provide a higher interference signal strength than the measurement results based on inter-subband interference leakage in Method #1. In addition, such measurements are not subject to inter-cell DL interference. If DL is received in the active DL BWP and simultaneously in the DL subband, it is feasible for the UE to measure RSRP / RSSI in the UL subband, similar to the simultaneous RSRP / RSSI measurement and DL reception in Release 16. When the UL subband is restricted within the active DL BWP, the existing CLI measurement and reporting framework can be reused to support RSRP / RSSI measurement in the UL subband.

[0408] [Description of claims related to UE]

[0409] Next, the above embodiments will be described in detail from the perspective of the operation of the UE. The methods to be described below are merely distinguished for ease of explanation. Therefore, as long as these methods are not mutually exclusive, it is obvious that part of the configuration of any method can be replaced by or combined with part of the configuration of another method. Figure 21 Examples of the operation procedures applicable to the UE in the system of the present disclosure are illustrated.

[0410] Figure 21 In step S2110, the UE receives from the base station (BS) indication information of a downlink (DL) signal or an uplink (UL) signal that can be performed for a specific duration in half-duplex (HD) or full-duplex (FD). The indication information includes information about the transmission configuration indicator (TCI) state or the sounding reference signal resource indicator (SRI) available during the duration for FD.

[0411] In step S2120, the UE performs transmission and reception using the TCI state or SRI corresponding to the indicated duration during the indicated duration among the durations for FD based on the indication information.

[0412] In step S2120, the UE performs transmission and reception using the TCI state or SRI corresponding to the indicated duration during the indicated duration among the durations for FD based on the indication information.

[0413] According to various embodiments of the present disclosure, for the purpose of multiple transmissions and receptions or repeated transmissions through one resource indicator in multiple durations, the indication information may further include information about the TCI state or SRI available during the duration for HD and the duration for FD.

[0414] According to various embodiments of the present disclosure, Figure 21 The embodiments may further include receiving an antenna configuration for each time resource from the base station; and performing transmission and reception based on the antenna configuration for each time resource during the duration for FD.

[0415] According to various embodiments of the present disclosure, the indication information may be indicated by classifying a plurality of DL signals or UL signals into i) DL signals or UL signals available only during a duration for HD, ii) DL signals or UL signals available during a duration for HD and a duration for FD, and iii) DL signals or UL signals used only during a duration for FD.

[0416] According to various embodiments of the present disclosure, Figure 21 An embodiment may further include receiving, from a base station, an indication message for downlink power related to time resources of sub-band full duplex (SBFD); and receiving a downlink signal in a frequency resource for downlink during time resources in which SBFD is applied based on the downlink power.

[0417] According to various embodiments of the present disclosure, the indication message for downlink power may be based on a comparison with the transmission power of a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS).

[0418] According to various embodiments of the present disclosure, Figure 21 An embodiment may further include receiving, from a base station, multi-input multi-output (MIMO)-related configurations for each time resource; and performing transmission and reception based on the MIMO-related configurations for each time resource.

[0419] According to various embodiments of the present disclosure, a user equipment (UE) in a wireless communication system is provided. The UE may include a transceiver and at least one processor, and the at least one processor may be configured to execute an operation method of the UE based on Figure 21 of the UE.

[0420] According to various embodiments of the present disclosure, a device for controlling a user equipment (UE) in a wireless communication system is provided. The device may include at least one processor and at least one memory operatively connected to the at least one processor. The at least one memory may be configured to store instructions that execute an operation method of the UE based on Figure 21 of the UE when executed by the at least one processor.

[0421] According to various embodiments of the present disclosure, one or more non-transitory computer-readable media (CRMs) storing one or more instructions are provided. The one or more instructions may be configured to perform operations when executed by one or more processors, and the operations may include an operation method of the UE based on Figure 21 of the UE.

[0422] [Description of claims related to BS]

[0423] Next, with reference to Figure 22 the above-described embodiments will be described in detail from the perspective of the operation of the base station. The methods to be described below are merely distinguished for ease of explanation. Therefore, as long as these methods are not mutually exclusive, it is obvious that partial configurations of any method can be replaced by or combined with partial configurations of another method.

[0424] Figure 22 An example of the operation process of the base station applicable to the system of the present disclosure is illustrated.

[0425] In step S2210, the base station transmits indication information to the user equipment (UE) regarding a downlink (DL) signal or an uplink (UL) signal for a specific duration capable of performing half-duplex (HD) or full-duplex (FD). The indication information includes information on the transmission configuration indicator (TCI) state or the sounding reference signal resource indicator (SRI) available during the duration for FD.

[0426] In step S2220, the base station performs transmission and reception using the TCI state or SRI corresponding to the indicated duration during the indicated duration for FD based on the indication information.

[0427] According to various embodiments of the present disclosure, for the purpose of multiple transmissions and receptions or repeated transmissions of a single resource indicator over multiple durations, the indication information may further include information on the TCI state or SRI available during the duration for HD and the duration for FD.

[0428] According to various embodiments of the present disclosure, Figure 22 the embodiments may further include transmitting an antenna configuration for each time resource to the UE; and performing transmission and reception based on the antenna configuration for each time resource during the duration for FD.

[0429] According to various embodiments of the present disclosure, the indication information may be indicated by classifying multiple DL signals or UL signals into i) DL signals or UL signals available only during the duration for HD, ii) DL signals or UL signals available during the duration for HD and the duration for FD, and iii) DL signals or UL signals used only during the duration for FD.

[0430] According to various embodiments of the present disclosure, Figure 22 the embodiments may further include transmitting an indication message regarding the downlink power for the time resource related to sub-band full-duplex (SBFD) to the UE; and transmitting a downlink signal in the frequency resource for the downlink of the time resource where SBFD is applied based on the downlink power.

[0431] According to various embodiments of the present disclosure, an indication message for downlink power may be based on a comparison with the transmission power of a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS).

[0432] According to various embodiments of the present disclosure, Figure 22 the embodiments may further include sending multi-input multi-output (MIMO)-related configurations for each time resource to a UE; and performing transmission and reception based on the MIMO-related configurations for each time resource.

[0433] According to various embodiments of the present disclosure, a base station in a wireless communication system is provided. The base station may include a transceiver and at least one processor, and the at least one processor may be configured to perform operations based on Figure 22 the operation method of the base station.

[0434] According to various embodiments of the present disclosure, an apparatus for controlling a base station in a wireless communication system is provided. The apparatus may include at least one processor and at least one memory operatively connected to the at least one processor. The at least one memory may be configured to store instructions that perform an operation method of the base station based on being executed by the at least one processor. Figure 22 the operation method of the base station.

[0435] According to various embodiments of the present disclosure, one or more non-transitory computer-readable media (CRMs) storing one or more instructions are provided. The one or more instructions may be configured to perform operations based on being executed by one or more processors, and the operations may include an operation method of the base station based on Figure 22 the operation method of the base station.

[0436] Wireless device applicable to the present disclosure

[0437] Examples of wireless devices applying various embodiments of the present disclosure are described below.

[0438] Figure 23 Examples of the structures of a first device and a second device applicable to the system of the present disclosure are illustrated.

[0439] The first device 1600 may include a processor 1610, an antenna unit 1620, a transceiver 1630, and a memory 1640.

[0440] The processor 1610 may perform baseband-related signal processing and includes a high-layer processing unit 1611 and a physical-layer processing unit 1615. The high-layer processing unit 1611 may process operations of the MAC layer, RRC layer, or high layers. The physical-layer processing unit 1615 may process operations of the PHY layer. For example, if the first device 1600 is a base station (BS) device in BS-UE communication, the physical-layer processing unit 1615 may perform uplink receive (Rx) signal processing, downlink transmit (Tx) signal processing, etc. For example, if the first device 1600 is the first UE device in UE-to-UE communication, the physical-layer processing unit 1615 may perform downlink receive (Rx) signal processing, uplink transmit (Tx) signal processing, sidelink transmit (Tx) signal processing, etc. In addition to performing baseband-related signal processing, the processor 1610 may also control the overall operation of the first device 1600.

[0441] If the antenna unit 1620 includes multiple antennas, the antenna unit 1620 may include one or more physical antennas and support MIMO transmission / reception. The transceiver 1630 may include a radio frequency (RF) transmitter and an RF receiver. The memory 1640 may store information processed by the processor 1610 and software, an operating system, and applications related to the operation of the first device 1600. The memory 1640 may also include components such as buffers.

[0442] The processor 1610 of the first device 1600 may be configured to implement the operations of the BS in BS-UE communication (or the operations of the first UE device in UE-to-UE communication) in the embodiments described in this disclosure.

[0443] The second device 1650 may include a processor 1660, an antenna unit 1670, a transceiver 1680, and a memory 1690.

[0444] The processor 1660 may perform baseband-related signal processing and includes a high-layer processing unit 1661 and a physical-layer processing unit 1665. The high-layer processing unit 1661 may process operations of the MAC layer, RRC layer, or high layers. The physical-layer processing unit 1665 may process operations of the PHY layer. For example, if the second device 1650 is a UE device in BS-UE communication, the physical-layer processing unit 1665 may perform downlink receive (Rx) signal processing, uplink transmit (Tx) signal processing, etc. For example, if the second device 1650 is the second UE device in UE-to-UE communication, the physical-layer processing unit 1665 may perform downlink receive (Rx) signal processing, uplink transmit (Tx) signal processing, sidelink receive (Rx) signal processing, etc. In addition to performing baseband-related signal processing, the processor 1660 may also control the overall operation of the second device 1660.

[0445] If the antenna unit 1670 includes multiple antennas, the antenna unit 1670 may include one or more physical antennas and support MIMO transmission / reception. The transceiver 1680 may include an RF transmitter and an RF receiver. The memory 1690 may store information processed by the processor 1660, as well as software, an operating system, and applications related to the operation of the second device 1650. The memory 1690 may also include components such as buffers.

[0446] The processor 1660 of the second device 1650 may be configured to implement the operation of the UE in BS-UE communication (or the operation of the second UE device in UE-to-UE communication) in the embodiments described in the present disclosure.

[0447] The descriptions of the BS and the UE in BS-UE communication (or the first UE device and the second UE device in UE-to-UE communication) in the examples of the present disclosure may be equivalently applied to the operations of the first device 1600 and the second device 1650, and redundant descriptions are omitted.

[0448] The wireless communication technologies implemented in the devices 1600 and 1650 according to the present disclosure may include LTE, NR, and 6G, as well as various other wireless communication technologies.

[0449] The claims described in the various embodiments of the present disclosure may be combined in various ways. For example, the technical features of the method claims of the various embodiments of the present disclosure may be combined and implemented as a device, and the technical features of the device claims of the various embodiments of the present disclosure may be combined and implemented as a method. Additionally, the technical features of the method claims and the technical features of the device claims in the various embodiments of the present disclosure may be combined and implemented as a device, and the technical features of the method claims and the technical features of the device claims in the various embodiments of the present disclosure may be combined and implemented as a method.

Claims

1. A method for operating a user equipment (UE) in a wireless communication system, the method comprising: Receiving, from a base station, indication information of a downlink (DL) signal or an uplink (UL) signal within a specific duration capable of performing half-duplex (HD) or full-duplex (FD); wherein the indication information includes information on a transmission configuration indicator (TCI) state or a sounding reference signal resource indicator (SRI) available during the duration for the FD; and Based on the indication information, performing transmission and reception using the TCI state or SRI corresponding to the indicated duration during the duration for the FD.

2. The method according to claim 1, wherein For multiple transmissions and receptions or repeated transmissions through one resource indicator in multiple durations, the indication information further includes information on the TCI state or SRI available during the duration for the HD and the duration for the FD.

3. The method according to claim 1, the method further comprising: Receiving, from the base station, an antenna configuration for each time resource; and Performing the transmission and the reception based on the antenna configuration for each time resource during the duration for the FD.

4. The method according to claim 1, wherein The indication information is indicated by classifying multiple DL signals or UL signals into i) DL signals or UL signals available only during the duration for the HD, ii) DL signals or UL signals available during the duration for the HD and the duration for the FD, and iii) DL signals or UL signals used only during the duration for the FD.

5. The method according to claim 1, the method further comprising: Receiving, from the base station, an indication message of the downlink power related to the time resource for sub-band full-duplex (SBFD); and Receiving a downlink signal in the frequency resource for the downlink of the time resource applying the SBFD based on the downlink power.

6. The method according to claim 5, wherein, The indication message for the downlink power is based on a comparison with the transmission power of a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS).

7. The method according to claim 1, the method further comprising: Receiving, from the base station, a multiple-input multiple-output (MIMO) related configuration for each time resource; and Performing the transmission and the reception based on the MIMO related configuration for each time resource.

8. A method for operating a base station in a wireless communication system, the method comprising: Sending, to a user equipment (UE), indication information of a downlink (DL) signal or an uplink (UL) signal within a specific duration capable of performing half-duplex (HD) or full-duplex (FD); wherein the indication information includes information on a transmission configuration indicator (TCI) state or a sounding reference signal resource indicator (SRI) available during the duration for the FD; and Based on the indication information, performing transmission and reception using the TCI state or SRI corresponding to the indicated duration during the duration for the FD.

9. The method according to claim 8, wherein For multiple transmissions and receptions or repeated transmissions of a resource indicator over multiple durations, the indication information further includes information on the TCI state or SRI available during the duration for the HD and the duration for the FD.

10. The method according to claim 8, the method further comprising: Sending an antenna configuration for each time resource to the UE; And Performing the transmission and reception based on the antenna configuration for each time resource during the duration for the FD.

11. The method according to claim 8, wherein, The indication information is indicated by classifying multiple DL signals or UL signals into i) DL signals or UL signals available only during the duration for the HD, ii) DL signals or UL signals available during the duration for the HD and the duration for the FD, and iii) DL signals or UL signals used only during the duration for the FD.

12. The method according to claim 8, the method further comprising: Sending an indication message to the UE regarding the downlink power related to the time resources for sub-band full duplex SBFD; And Transmitting a downlink signal in the frequency resources for the downlink of the time resources where the SBFD is applied based on the downlink power.

13. The method according to claim 12, wherein, The indication message regarding the downlink power is based on a comparison with the transmission power of the synchronization signal block SSB or the channel state information reference signal CSI-RS.

14. The method according to claim 8, wherein The method further comprises: Sending a multiple-input multiple-output MIMO-related configuration for each time resource to the UE; and Performing the transmission and reception based on the MIMO-related configuration for each time resource.

15. A user equipment UE in a wireless communication system, the UE comprising: A transceiver; At least one processor; And At least one memory, the at least one memory being operatively connected to the at least one processor and configured to store instructions that perform operations based on execution by the at least one processor, wherein the operations include all steps of the method according to any one of claims 1 to 7.

16. A base station in a wireless communication system, the base station comprising: A transceiver; At least one processor; And At least one memory, the at least one memory being operatively connected to the at least one processor and configured to store instructions that perform operations based on execution by the at least one processor, wherein the operations include all steps of the method according to any one of claims 8 to 14.

17. A control device for controlling a user equipment in a wireless communication system, the control device comprising: At least one processor; And At least one memory, the at least one memory being operatively connected to the at least one processor, wherein the at least one memory is configured to store instructions that perform operations based on execution by the at least one processor, and wherein the operations include all steps of the method according to any one of claims 1 to 7.

18. A control device for controlling a base station in a wireless communication system, the control device comprising: At least one processor; And At least one memory, the at least one memory being operatively connected to the at least one processor, Wherein the at least one memory is configured to store instructions that perform operations when executed by the at least one processor, and Wherein the operations include all steps of the method according to any one of claims 8 to 14.

19. One or more non-transitory computer-readable media storing one or more instructions, Among them, The one or more instructions being configured to perform operations when executed by one or more processors, and Wherein the operations include all steps of the method according to any one of claims 1 to 7.

20. One or more non-transitory computer-readable media storing one or more instructions, Among them, The one or more instructions being configured to perform operations when executed by one or more processors, and Wherein the operations include all steps of the method according to any one of claims 8 to 14.

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