Apparatus and method for configuring resources for PUCCH repeated transmission in wireless communication system

Abstract

Various embodiments of the present disclosure provide a method of operating a user equipment (UE) in a wireless communication system. The method comprises the steps of: receiving first information of an additional physical resource block (PRB) offset from a base station (BS); receiving second information of a plurality of repetition factors from the base station; applying an additional PRB offset a specific number of times based on a specific repetition factor among the plurality of repetition factors in order to determine a specific PRB for repeated transmission of a physical uplink control channel (PUCCH); and performing repeated transmission of the PUCCH on the basis of the specific PRB.

Description

Technical Field

[0001] The present disclosure relates to a wireless communication system, and more particularly, to an apparatus and method for configuring resources for repeated PUCCH transmission in a wireless communication system. Background Art

[0002] NR supports multiple numerologies (or subcarrier spacing (SCS)) to support diverse 5G services. For example, if the SCS is 15kHz, NR supports wide areas in traditional cellular bands; if the SCS is 30kHz / 60kHz, NR supports dense urban areas, lower latency, and wider carrier bandwidth; and if the SCS is 60kHz or higher, NR supports bandwidth greater than 24.25GHz to overcome phase noise.

[0003] If, in the initial access step, the UE successfully receives the Msg.4 PDSCH sent from the base station while performing the RACH process, the UE sends HARQ-ACK information. In this case, the resources required for the PUCCH for the UE to send the Msg.4 HARQ-ACK are predefined as the initial PUCCH resource set. The base station selects one from the defined initial PUCCH resource sets via RRC signaling, and selects a PUCCH resource from the selected PUCCH resource set based on the specific field of the DCI for the Msg.4 PDSCH and the CCE index of the DCI. The initial PUCCH resource set used in this case is defined in Table 9.2.1-1 of Section 9.2.1 of the 3GPP TS (Technical Standard) 38.213 specification.

[0004] The signals / channels considered in existing NR systems may not work properly because they do not meet the SNR requirements in specific environments (e.g., NTN). Typically, the PUCCH format defined in the initial PUCCH resource set may need to be enhanced, such as repeated transmission, in NTN environments. Summary of the Invention

[0005] Technical issues

[0006] In order to solve the above problems, the present disclosure provides an apparatus and method for configuring resources for PUCCH repetition transmission in a wireless communication system.

[0007] The present disclosure provides an apparatus and method for configuring independent resources for PUCCH repetition transmission compared to existing resources when repetition transmission is applied to a PUCCH format defined in an initial PUCCH resource set in a wireless communication system.

[0008] The technical objectives to be achieved by the present disclosure are not limited to those described above as examples only, and other technical objectives not mentioned can be clearly understood by those skilled in the art in the technical field to which the present disclosure belongs from the following description.

[0009] Technical Solution

[0010] According to various embodiments of the present disclosure, a method for operating a user equipment (UE) in a wireless communication system is provided, the method comprising: receiving first information of an additional physical resource block (PRB) offset from a base station; receiving second information of a plurality of repetition factors from the base station; determining a specific PRB for repeated transmission of a physical uplink control channel (PUCCH) by applying the additional PRB offset a specific number of times based on a specific repetition factor among the plurality of repetition factors; and performing repeated transmission of the PUCCH based on the specific PRB.

[0011] According to various embodiments of the present disclosure, a method for operating a base station in a wireless communication system is provided, the method comprising: transmitting first information of an additional physical resource block (PRB) offset to a user equipment (UE); transmitting second information of a plurality of repetition factors to the UE; and receiving from the UE repeated transmission of a physical uplink control channel (PUCCH) based on a specific PRB. The specific PRB for repeated transmission of the PUCCH is determined by applying the additional PRB offset a specific number of times based on a specific repetition factor among the plurality of repetition factors.

[0012] According to various embodiments of the present disclosure, a user equipment (UE) in a wireless communication system is provided, wherein the UE includes a transceiver, at least one processor, and at least one memory, wherein the at least one memory is operably connected to the at least one processor and stores instructions, wherein the instructions perform operations based on being executed by the at least one processor, and the operations include all steps of the method for operating the UE according to various embodiments of the present disclosure.

[0013] According to various embodiments of the present disclosure, a base station in a wireless communication system is provided, which includes a transceiver, at least one processor, and at least one memory, wherein the at least one memory is operably connected to the at least one processor and stores instructions, the instructions performing operations based on being executed by the at least one processor, and the operations include all steps of the method for operating a base station according to various embodiments of the present disclosure.

[0014] According to various embodiments of the present disclosure, a control device for controlling a user equipment in a wireless communication system is provided, the control device including at least one processor and at least one memory, the at least one memory being operatively connected to the at least one processor and storing instructions, the instructions performing operations based on being executed by the at least one processor, and the operations including all steps of the method for operating a user equipment according to various embodiments of the present disclosure.

[0015] According to various embodiments of the present disclosure, a control device for controlling a base station in a wireless communication system is provided, the control device including at least one processor and at least one memory, the at least one memory being operatively connected to the at least one processor and storing instructions, the instructions performing operations based on being executed by the at least one processor, and the operations including all steps of the method for operating a base station according to various embodiments of the present disclosure.

[0016] According to various embodiments of the present disclosure, one or more non-transitory computer-readable media are provided, wherein the one or more non-transitory computer-readable media store one or more instructions, and the one or more instructions perform operations based on being executed by one or more processors, and the operations include all steps of the method of operating a user device according to various embodiments of the present disclosure.

[0017] According to various embodiments of the present disclosure, one or more non-transitory computer-readable media are provided, wherein the one or more non-transitory computer-readable media store one or more instructions, and the one or more instructions perform operations based on being executed by one or more processors, and the operations include all steps of the method of operating a base station according to various embodiments of the present disclosure.

[0018] Beneficial effects

[0019] In order to solve the above problems, the present disclosure may provide an apparatus and method for configuring resources for PUCCH repetition transmission in a wireless communication system.

[0020] The present disclosure may provide an apparatus and method for configuring independent resources for PUCCH repetition transmission compared to existing resources when repetition transmission is applied to a PUCCH format defined in an initial PUCCH resource set in a wireless communication system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the detailed description. The drawings illustrate embodiments of the present disclosure and, together with the description, are used to explain the technical features of the present disclosure. The technical features of the present disclosure are not limited to the specific drawings, and the features disclosed in each drawing can be combined with each other to form new embodiments. The reference numerals in each drawing may represent structural elements.

[0022] 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 shown.

[0023] Figure 2 An example of the structure of a radio frame used in a system applicable to the present disclosure is shown.

[0024] Figure 3 An example of a time slot structure used in a system suitable for the present disclosure is shown.

[0025] Figure 4 An example of a time slot structure of a radio frame used in a system applicable to the present disclosure is shown.

[0026] Figure 5 An example of applying additional PRB offset in a system applicable to the present disclosure is shown.

[0027] Figure 6 An example of applying additional PRB offset in a system applicable to the present disclosure is shown.

[0028] Figure 7 An example of a process of operating a UE in a system applicable to the present disclosure is shown.

[0029] Figure 8 An example of a process of operating a base station in a system applicable to the present disclosure is shown.

[0030] Figure 9 An example of the structure of the first device and the second device in the system applicable to the present disclosure is shown. DETAILED DESCRIPTION

[0031] In various embodiments of the present disclosure, "A or B" may mean "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 mean "only A," "only B," "only C," or "any combination of A, B, and C."

[0032] A slash ( / ) or a comma used in various embodiments of the present disclosure may represent "and / or". For example, "A / B" may represent "A and / or B". Thus, "A / B" may represent "only A", "only B", or "both A and B". For example, "A, B, C" may represent "A, B, or C".

[0033] In various embodiments of the present disclosure, “at least one of A and B” may mean “only A,” “only B,” or “both A and B.” Furthermore, 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 as having the same meaning as “at least one of A and B.”

[0034] Furthermore, in various embodiments of the present disclosure, “at least one of A, B, and C” may mean “only A,” “only B,” “only C,” or “any combination of A, B, and C.” Furthermore, “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.”

[0035] In addition, the brackets used in various embodiments of the present disclosure may represent "for example". Specifically, when describing "control information (PDCCH)", "PDCCH" may be proposed as an example of "control information". In other words, the "control information" in various embodiments of the present disclosure is not limited to "PDCCH", and "PDDCH" may be proposed as an example of "control information". In addition, even when describing "control information (i.e., PDCCH)", "PDCCH" may be proposed as an example of "control information".

[0036] In various embodiments of the present disclosure, technical features described separately in one drawing may be implemented separately or simultaneously.

[0037] General signal transmission method in 3GPP

[0038] Physical channels and general signaling

[0039] Figure 1 An example of a physical channel used in a system applicable to the present disclosure and a general signal transmission method using the physical channel is shown. More specifically, Figure 1 Shown are physical channels and general signal transmission used in the 3GPP system.

[0040] Figure 1This figure shows the physical channels and general signal transmission used in 3GPP systems. In wireless communication systems, a UE receives information from a base station (eNB) via a downlink (DL) and transmits information to the eNB via an uplink (UL). The information transmitted and received by the eNB and UE includes data and various control information. Various physical channels exist depending on the type and purpose of the information transmitted and received by the eNB and UE.

[0041] In S11, a UE that is powered on again after power failure or enters a new cell performs an initial cell search operation, such as synchronization 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 obtain information such as a cell identity (ID). In addition, the UE can receive a physical broadcast channel (PBCH) from the base station and obtain intra-cell broadcast information. The UE can receive a downlink reference signal (DL RS) during the initial cell search step to check the downlink channel status.

[0042] In S12, the UE that has completed the initial cell search may receive a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) corresponding to the PDCCH to obtain more detailed system information.

[0043] Next, in S13 to S16, the UE may perform a random access procedure to complete access to the base station. Specifically, in S13, the UE may send a preamble on the 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 may use the scheduling information in the RAR to send 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.

[0044] Next, the UE that performs 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 called uplink control information (UCI). UCI includes hybrid automatic repeat request (HARQ) confirmation / negative ACK (ACK / NACK), scheduling request (SR), channel state information (CSI), etc. CSI includes channel quality indication (CQI), precoding matrix indication (PMI), rank indication (RI), etc. UCI is usually sent on PUCCH, but if control information and data need to be sent at the same time, it can also be sent on PUSCH. The UE can send UCI on PUSCH non-periodically based on the request / indication of the network.

[0045] Orthogonal Frequency Division Multiplexing (OFDM) numerology

[0046] The new RAT system uses an OFDM transmission scheme or a similar transmission scheme. The new RAT system may follow OFDM parameters that are different from those of LTE. Alternatively, the new RAT system may follow the existing LTE / LTE-A parameter set as is, but with a larger system bandwidth (e.g., 100 MHz). Alternatively, a cell may support multiple parameter sets. In other words, UEs operating with different parameter sets can coexist in a cell.

[0047] Radio frame structure

[0048] Figure 2 An example of the structure of a radio frame used in a system applicable to the present disclosure is shown.

[0049] In NR, uplink and downlink transmissions consist of frames. A radio frame has a length of 10ms and is defined as two 5ms half-frames (HF). A half-frame is defined as five 1ms subframes (SF). A subframe is divided into one or more time slots, and the number of time slots in a subframe depends on the subcarrier spacing (SCS). Depending on the cyclic prefix (CP), each time slot includes 12 or 14 OFDM (A) symbols. When a normal CP is used, each time slot includes 14 symbols. When an extended CP is used, each time slot includes 12 symbols. Symbols can include OFDM symbols (or CP-OFDM symbols) and SC-FDMA symbols (or DFT-s-OFDM symbols).

[0050] Table 1 shows that the number of symbols per slot, the number of slots per frame, and the number of slots per subframe vary according to the SCS when a normal CP is used.

[0051] [Table 1]

[0052] <![CDATA[SCS(15*2 u )]]> <![CDATA[N slot symb ]]> <![CDATA[N frame，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

[0053] 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 slots in a subframe.

[0054] Table 2 shows that when the extended CP is used, the number of symbols per slot, the number of slots per frame, and the number of slots per subframe vary according to the SCS.

[0055] [Table 2]

[0056] <![CDATA[SCS(15*2 u )]]> <![CDATA[N slot symb ]]> <![CDATA[N frame，u slot ]]> <![CDATA[N subframe，u slot ]]> 60KHz (u=2) 12 40 4

[0057] NR supports multiple numerologies (or subcarrier spacing (SCS)) for supporting various 5G services. For example, when the SCS is 15kHz, it supports wide areas in traditional cellular bands; when the SCS is 30kHz / 60kHz, it supports dense cities, lower latency and wider carrier bandwidth; and when the SCS is 60kHz or higher, it supports bandwidth greater than 24.25GHz to overcome phase noise.

[0058] The NR frequency band can be defined as two types of frequency ranges (FR1 and FR2). The value of the frequency range can be changed. 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 "below 6 GHz range" and FR2 can represent "above 6 GHz range" and can be referred to as millimeter wave (mmW).

[0059] [Table 3]

[0060] Frequency range name Corresponding frequency range Subcarrier spacing FR1 450MHz-6000MHz 15, 30, 60kHz FR2 24250MHz-52600MHz 60, 120, 240kHz

[0061] As described above, the value of the frequency range of the NR system can be changed. For example, FR1 can include a frequency band of 410 MHz to 7125 MHz, as shown in Table 4 below. That is, FR1 can include a frequency band of 6 GHz (or 5850, 5900, 5925 MHz, etc.) or higher. For example, the frequency band of 6 GHz (or 5850, 5900, 5925 MHz, etc.) or higher included in FR1 can include an unlicensed frequency band. The unlicensed frequency band can be used for various purposes, such as for communication in vehicles (e.g., autonomous driving).

[0062] [Table 4]

[0063] Frequency range name Corresponding frequency range Subcarrier spacing FR1 410MHz-7125MHz 15, 30, 60kHz FR2 24250MHz-52600MHz 60, 120, 240kHz

[0064] In the NR system, OFDM(A) parameter sets (e.g., SCS, CP length, etc.) may be configured differently between multiple cells combined into one UE. Therefore, the (absolute time) duration of time resources (e.g., SF, time slot, or TTI) (collectively referred to as time unit (TU) for convenience) consisting of the same number of symbols may be configured differently between the combined cells.

[0065] Figure 3 An example of a time slot structure used in a system suitable for the present disclosure is shown.

[0066] A time slot includes multiple symbols in the time domain. For example, a time slot includes 7 symbols under normal CP, and 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 a plurality of (e.g., 12) consecutive subcarriers in the frequency domain. A bandwidth part (BWP) is defined as a plurality of consecutive (P) 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 activated BWPs, and only one BWP can be activated in a UE. In the resource grid, each element is called a resource element (RE), and a complex symbol can be mapped to each RE.

[0067] Figure 4 An example of a time slot structure of a radio frame used in a system applicable to the present disclosure is shown.

[0068] More specifically, Figure 4 The time slot structure of a frame of an NR system is shown as an exemplary system.

[0069] like Figure 4 As shown, the frame structure of NR is characterized by a self-contained structure, in which DL control channels, DL or UL data, UL control channels, etc. can all be included in one time slot. In this case, DL data scheduling information, UL data scheduling information, etc. can be sent on the DL control channel, and ACK / NACK information of DL data, CSI information (modulation and coding scheme information, MIMO transmission related information, etc.), scheduling request, etc. can be sent on the UL control channel. Figure 4 In the UL-to-DL or UL-to-DL switching time slot, a time gap may exist between the control region and the data region. Furthermore, a portion of the DL control channel / DL data / UL data / UL control channel may not be allocated within a single time slot. Alternatively, the order of the channels constituting a time slot may vary (e.g., DL control / DL data / UL control / UL data or UL control / UL data / DL control / DL data, etc.).

[0070] Composition and method of the present invention

[0071] The NR frame structure, RACH, U-band system, etc. can be applied in combination with the method described in the present disclosure, or can be supplemented to clarify the technical features of the method described in the present disclosure.

[0072] In addition, the method related to the configuration of the PRACH transmission opportunity described below relates to uplink transmission and can be equally applied to the uplink signal transmission method in the above-mentioned NR system (licensed band) or U-band system (unlicensed band). The technical ideas described in this disclosure can be modified or replaced to suit the terms, expressions, structures, etc. defined in each system so that they can be implemented in the corresponding system.

[0073] For example, uplink transmission performed by the method related to configuration of PRACH transmission timing described below can be performed in the L cell and / or U cell defined in the NR system or the U-band system.

[0074] NR supports multiple numerologies (or subcarrier spacing (SCS)) to support diverse 5G services. For example, if the SCS is 15kHz, NR supports wide areas in traditional cellular bands; if the SCS is 30kHz / 60kHz, NR supports dense urban areas, lower latency, and wider carrier bandwidth; and if the SCS is 60kHz or higher, NR supports bandwidth greater than 24.25GHz to overcome phase noise.

[0075] If, in the initial access step, the UE successfully receives the Msg.4PDSCH sent from the base station while performing the RACH process, the UE sends HARQ-ACK information. In this case, the resources required for the UE to send the PUCCH of Msg.4HARQ-ACK are predefined as the initial PUCCH resource set. The base station selects one from the defined initial PUCCH resource sets via RRC signaling, and selects a PUCCH resource from the selected PUCCH resource set based on the specific field of the DCI used to schedule the Msg.4PDSCH and the CCE index of the DCI. The initial PUCCH resource set used in this case is defined in Table 9.2.1-1 of Section 9.2.1 of the 3GPP TS (Technical Standard) 38.213 specification. Table 5 shows Table 9.2.1-1: PUCCH resource set before the dedicated PUCCH resource configuration of 3GPP TS 38.213.

[0076] [Table 5]

[0077]

[0078] The signals / channels considered in existing NR systems may not function properly because they do not meet the target SNR in a specific environment (e.g., NTN). Typically, the PUCCH format defined in the initial PUCCH resource set may require enhancement, such as repeated transmission, in the NTN environment. That is, the present disclosure proposes an apparatus and method for configuring independent resources for PUCCH repeated transmission compared to existing resources when repeated transmission is applied to the PUCCH format defined in the initial PUCCH resource set.

[0079] 1. Method for configuring independent time / frequency resources for repeated PUCCH transmission

[0080] The signals / channels considered in existing NR systems may not function properly because they do not meet the target SNR in a specific environment (e.g., NTN). Typically, the PUCCH format defined in the initial PUCCH resource set may require enhancement, such as repeated transmission, in the NTN environment. That is, the present disclosure proposes an apparatus and method for configuring independent resources for PUCCH repeated transmission compared to existing resources when repeated transmission is applied to the PUCCH format defined in the initial PUCCH resource set.

[0081] 1. Method for configuring independent time / frequency resources for repeated PUCCH transmission

[0082] Before a dedicated PUCCH resource set is allocated to a UE, the UE performing PUCCH transmission uses the PUCCH resources defined in Table 9.2.1-1 of 3GPP TS (Technical Specification) 38.213 of Table 5 above. However, when PUCCH repeated transmission is considered in addition to the existing single PUCCH transmission, there is a disadvantage that the time domain / frequency domain used for single PUCCH transmission will also be shared by PUCCH repeated transmission unless special conditions are added. That is, when the base station allocates PUCCH resources to UEs present in the corresponding cell, TDM should be performed at the time slot level, or CDM should be performed within the same time slot. However, if the number of UEs performing PUCCH repeated transmission increases, and the number of repeated transmissions also increases, resource shortages may occur.

[0083] Therefore, as a method to solve this problem, it is possible to configure so that the resources for repeated PUCCH transmission can be allocated independently of the resources for single PUCCH transmission, and it is possible to consider that the base station simply independently configures / indicates the time resources and / or frequency resources. Typically, the configuration method of time resources and the configuration method of frequency resources can be configured separately based on the PUCCH format combination or the number of repetitions, and it is also possible to consider applying two or more methods at the same time. In addition, regardless of whether PUCCH repeated transmission is applied in any manner including time slot level repetition, symbol level repetition, time slot + symbol level repetition, etc., it can be applied in combination with the method proposed in the present disclosure.

[0084] The method proposed in the present disclosure is an operation that the base station can additionally configure / instruct. If the base station does not provide corresponding information to the UE, the UE can be configured to perform PUCCH single / repeated transmission by selecting time / frequency resources based on traditional operations.

[0085] 1.1 Methods for configuring time resources

[0086] The PUCCH resource set used by the UE before receiving the dedicated PUCCH resource is defined in Table 9.2.1-1 of the 3GPP TS (Technical Specification) 38.213 specification of Table 5 above, and in terms of time resources, a starting OFDM symbol index is defined for each PUCCH format combination of a single PUCCH transmission. In this case, the starting OFDM symbol index can be defined as before for a single PUCCH transmission, and a method of defining a new starting OFDM symbol index (and / or available PUCCH time slot) for each PUCCH format combination and / or each repetition number for repeated PUCCH transmission can be additionally considered. In this case, the new starting OFDM symbol index (and / or available PUCCH time slot) and the like can be predefined in the 3GPP specification, or can be configured so that the base station can indicate it via a specific signal / channel and the like.

[0087] That is, a UE that performs a single PUCCH transmission may be configured to perform PUCCH transmission at the starting OFDM symbol index defined in Table 9.2.1-1 of 3GPP TS (Technical Specification) 38.213 of Table 5 above, and a UE that performs PUCCH repetition transmission may be configured to perform PUCCH transmission at a newly defined starting OFDM symbol index (and / or available PUCCH time slot). Typically, the proposed method considers transmitting one PUCCH per specific time slot for PUCCH repetition transmission, and when the number of repetitions is greater than or equal to 2, a form of repeatedly transmitting PUCCH across multiple time slots is considered. If a single PUCCH transmission occupies most of a single uplink (UL) time slot (e.g., PF1 with 10 or 14 OFDM symbols), a method of setting / defining the time slot interval for performing repetition based on the number of repetitions (or based on the total number of repetitions) may also be considered.

[0088] This method has the following advantages: when the configured / indicated repetition numbers are different between UEs using the same PUCCH format, independent PUCCH resources can be used for each repetition number through TDM.

[0089] 1.2 Methods for allocating frequency resources

[0090] The PUCCH resource set used by the UE before receiving the dedicated PUCCH resource is defined in Table 9.2.1-1 of 3GPP TS (Technical Specification) 38.213 in Table 5 above, and provides the physical resource block (PRB) offset in terms of frequency resources (i.e., ) value. The PRB offset value is commonly (i.e., cell-specifically) applied to all UEs within a specific cell for a single PUCCH transmission. In addition, a method of configuring the PRB offset differently for each repetition number and / or making them non-overlapping may be considered based on the value (or number) of the initial cyclic shift (CS) index set configured for each PUCCH resource set index.

[0091] In the simplest approach, when the number of initial CS index sets is K, the PRB offset to be applied based on the value of the PUCCH repetition number N is The value may be defined as in Equation 1. That is, if the number of repetitions is 1, the PRB offset may be a conventional PRB offset value (ie, ); If the number of repetitions N is 2, the PRB offset Can be If the number of repetitions N is 4, the PRB offset Can be And if the number of repetitions N is 8, the PRB offset Can be

[0092] [Formula 1]

[0093]

[0094] To explain with a specific example in Equation 1, when the value of the initial CS index set is {0, 3} or {0, 6} (i.e., when the total number K of the initial CS index sets is 2), the required PUCCH resources on the frequency axis are 4 RBs for each of the first hop and the second hop (i.e., ). Therefore, if the repetition number is 1, the PRB offset can be the traditional PRB offset value (ie, ); If the number of repetitions N is 2, the PRB offset can be If the number of repetitions N is 4, the PRB offset can be And if the number of repetitions N is 8, the PRB offset can be

[0095] As another example, when the value of the initial CS index set is {0, 4, 8} (ie, when the total number K of the initial CS index sets is 3), the required PUCCH resources on the frequency axis are 3 RBs for each of the first hop and the second hop (ie, ). Therefore, if the number of repetitions is 1, the PRB offset may be a conventional PRB offset value (ie, if index 2 of Table 9.2.1-1 is indicated, ); If the number of repetitions N is 2, the PRB offset can be If the number of repetitions N is 4, the PRB offset can be And if the number of repetitions N is 8, the PRB offset can be

[0096] As another example, when the value of the initial CS index set is {0, 3, 6, 9} (ie, when the total number K of the initial CS index sets is 4), the required PUCCH resources on the frequency axis are 2 RBs for each of the first hop and the second hop (ie, ). Therefore, if the number of repetitions is 1, the PRB offset may be a conventional PRB offset value (ie, if index 14 of Table 9.2.1-1 is indicated, ); If the number of repetitions N is 2, the PRB offset can be If the number of repetitions N is 4, the PRB offset can be And if the number of repetitions N is 8, the PRB offset can be

[0097] In another method, a method of reducing inter-cell interference can be considered, which can be achieved by changing the value of Equation 1 to It is defined by multiplying by an integer (e.g., L). In this case, the integer L may be 2 and / or 3, etc., and the value may be set / indicated by the base station or may be predefined. As one of the methods for predefining the value, the L value may be determined based on the number of indexes of the same PUCCH format and CS index with different PRB offsets applied in Table 9.2.1-1 of 3GPP TS (Technical Specification) 38.213 of Table 5 above. For example, when index 1 or 2 of Table 9.2.1-1 of 3GPP TS (Technical Specification) 38.213 of Table 5 above is used, the L value may be set to 2. As another example, when index 4, 5, 6, or 8, 9, 10, or 12, 13, 14, etc. is used, the L value may be set to 3. As a result, if the method is expressed as a formula, it may be as shown in Formula 2.

[0098] [Formula 2]

[0099]

[0100] In another method, it can be considered that the base station configures / indicates the PRB offset to be applied based on the value of the PUCCH repetition number N via higher layer signaling (eg, SIB, etc.). For example, the base station can configure / indicate the value of formula 1 for each repetition number via high-level signaling (eg, SIB, etc.). Another example, the base station can configure / indicate via high-layer signaling (e.g., SIB, etc.) The value is used to replace the value of formula 1 So that the UE can calculate the If it is expressed as a formula, it can be shown as Equation 3.

[0101] [Formula 3]

[0102]

[0103] When the PRB offset to be applied is defined based on the PUCCH repetition number N value by the above proposed method When , the UE can calculate in which PRB the first hop and / or the second hop should be located by applying the corresponding PRB offset value, and can send PUCCH to the corresponding PRB position. That is, the UE performing PUCCH repetition can calculate in which PRB the first hop and / or the second hop should be located by applying the corresponding PRB offset value, and can send PUCCH to the corresponding PRB position. Substitute the value into the following formula defined in Section 9.2.1 of the existing 3GPP TS 38.213: To calculate the PRB position where the PUCCH is actually sent.

[0104]

[0105] If configured in this way, when the number of PUCCH repetitions is different between multiple UEs within a specific cell, each PUCCH resource based on the number of repetitions can be distinguished in the form of frequency division multiplexing (FDM), which has the advantage of reducing delay from the perspective of UE transmission and can also be beneficial in terms of resource utilization of the base station.

[0106] In another method, it may be considered to configure / indicate via higher layer signaling (e.g., SIB, etc.) a PRB offset (e.g., N=2, 4, 8) to be applied to the remaining repetition numbers N (e.g., N=2, 4, 8) except 1 among the PUCCH repetition numbers configured / indicated by the base station via higher layer signaling (e.g., SIB, etc.). ) value method. For example, Equation 3 The value can be configured / indicated for each repetition number configured and indicated by the base station via higher layer signaling (e.g., SIB, etc.). If the base station indicates {1, 4, 8} as the repetition number via higher layer signaling (e.g., SIB, etc.), the base station can configure / indicate via higher layer signaling (e.g., SIB, etc.) and Then, when the UE performs PUCCH repetition transmission, if the repetition number N is 4, it can be applied Rather than traditional PRB offset (or in addition to the traditional PRB offset In addition, it also applies ) as the PRB offset, and if the number of repetitions N is 8, it can be applied Rather than traditional PRB offset (or in addition to the traditional PRB offset In addition, it also applies ) as the PRB offset.

[0107] In addition, it can be considered that the base station configures / indicates an additional PRB offset (eg, ) regardless of the PUCCH repetition number value. For example, if the base station configures / indicates an additional PRB offset (e.g., ), when the UE performs repetition while transmitting a common PUCCH, the UE may be configured to apply the additional PRB offset (e.g., ) instead of the traditional PRB offset (or in addition to the traditional PRB offset In addition to the additional PRB offset, the UE may also apply the additional PRB offset regardless of the repetition factor value and perform PUCCH repetition. If the base station does not indicate the additional PRB offset, the UE may be defined to set the corresponding value to 0.

[0108] As another example, when the base station configures / indicates an additional PRB offset (e.g. ) and when all repetition factors including one or more repetition factors among 2 and / or 4 and / or 8 are configured / indicated via higher layer signaling (e.g., SIB, etc.), the UE may be configured to (additionally) apply additional PRB offsets (e.g., ) size. In this case, n represents the nth repetition factor when the repetition factors (except 1) are listed in ascending (or descending) order among the multiple repetition factors indicated by the base station. For example, if the base station configures / indicates repetition factors of {1, 4, 8} for common PUCCH repetition via higher layer signaling (e.g., SIB, etc.), when the UE transmits PUCCH using repetition factor 1, the UE can be defined as using the legacy PRB offset Furthermore, when a UE transmits PUCCH using a repetition factor of 4, the UE may be defined to apply an additional PRB offset (e.g., ) value instead of the traditional PRB offset (e.g., )(or in addition to the traditional PRB offset In addition, an additional PRB offset is applied once) and PUCCH repetition is performed. In addition, when the UE transmits PUCCH using a repetition factor of 8, the UE may be defined as applying two additional PRB offsets (e.g.,

[0109] ) value (for example, ) instead of the traditional PRB offset (or apply two additional PRB offsets in addition to the conventional PRB offset) and perform PUCCH repetition. The additional PRB offsets proposed above (e.g.,

[0110] ) may be provided by the base station to the UE via PUCCH-ConfigCommon, and if the base station does not provide the additional PRB offset (e.g., ), the UE can be defined as setting the corresponding value to 0.

[0111] An example of a method of applying n times additional PRB offsets in addition to the conventional PRB offset, when applied to the 3GPP TS 38.213 specification, can be expressed as follows.

[0112]

[0113] 2. Method of applying different PRB offsets during PUCCH retransmission

[0114] Figure 5 An example of applying additional PRB offset in a system applicable to the present disclosure is illustrated.

[0115] Additionally, a method may be considered in which an additional PRB offset is configured / determined based on the repetition factor, and the UE performs PUCCH repetition transmission by applying the additional PRB offset starting from a specific k-th transmission. Figure 5 As illustrated, the UE may apply the legacy PRB offset to the first PUCCH transmission of each time regardless of the repetition factor, and when the repetition factor is 2, the UE may apply an additional PRB offset for a repetition factor of 2 starting from the second PUCCH transmission. Furthermore, when the repetition factor is 4, the UE may apply an additional PRB offset for a repetition factor of 2 to the second PUCCH transmission, and may apply an additional PRB offset for a repetition factor of 4 from the third PUCCH transmission to the fourth PUCCH transmission. When the repetition factor is 8, the UE may apply an additional PRB offset for a repetition factor of 2 to the second PUCCH transmission, may apply an additional PRB offset for a repetition factor of 4 from the third PUCCH transmission to the fourth PUCCH transmission, and may apply an additional PRB offset for a repetition factor of 8 from the fifth PUCCH transmission to the eighth PUCCH transmission.

[0116] Figure 6 An example of applying additional PRB offset in a system applicable to the present disclosure is illustrated.

[0117] For another example, Figure 6 As illustrated, if an additional PRB offset is configured / determined regardless of the repetition factor, the UE may be defined to apply the conventional PRB offset to the first PUCCH transmission of each time regardless of the repetition factor, and to apply the additional PRB offset to subsequent PUCCH transmissions starting from the second PUCCH transmission when the repetition factor is 2, 4 or 8.

[0118] 3. Additional initial UL BWP

[0119] A method of additionally configuring an initial UL BWP for common PUCCH retransmission may be considered. That is, the existing initial UL BWP may be used for conventional PUCCH transmission, and an additional initial UL BWP may be configured for common PUCCH retransmission so that the UE performs common PUCCH retransmission in the additional initial UL BWP.

[0120] In addition, if an additional initial UL BWP is configured / indicated, the base station may configure / indicate a new PRB offset value to replace the PRB offset value used for legacy PUCCH transmission, or may be configured to apply a different value by scaling the PRB offset value predefined in the 3GPP specification by K times (e.g., 2 times or 1 / 2 times). As described above, in the method of providing an additional PRB offset by the base station, it may be defined that the additional PRB offset value is applied when an additional initial UL BWP is configured / indicated, and the legacy PRB offset value is applied when an additional initial UL BWP is not configured / indicated.

[0121] When defined in this manner, the UE can be configured to use the additional initial UL BWP only for a specific purpose (e.g., performing common PUCCH retransmission). Alternatively, when the UE increases the common PUCCH retransmission capability via higher-layer signaling of Msg3 PUSCH, the UE can be configured to transmit UL signals / channels configured / indicated by the base station (e.g., Msg4 HARQ-ACK PUCCH, Msg5 PUSCH, etc.) through the additional initial UL BWP (until the UE's state switches to the RRC connected state).

[0122] 4. Dynamic Indication

[0123] However, if the additional PRB offset is applied to the UE for coverage enhancement through a semi-static method, then even when no other UE uses the existing PUCCH resources (i.e., using the traditional PRB offset), it is impossible to push the PUCCH resources to the edge of the bandwidth portion, which makes it difficult for the base station to perform continuous resource allocation in PUSCH resource allocation. In other words, dynamic signaling may be required so that the additional PRB offset is used only when the base station is short of PUCCH resources using the traditional PRB offset, and not to use the additional PRB offset when the base station is not short of PUCCH resources using the traditional PRB offset.

[0124] Therefore, whether the additional PRB offset is enabled / disabled is configured through higher-layer signaling (e.g., SIB, etc.), but whether it is actually applied to the common PUCCH repetition transmission may be dynamically indicated by the base station. Typically, it can be defined as the base station indicating whether to apply the additional PRB offset through RAR MAC CE. Therefore, if the base station indicates through RAR MAC CE that the additional PRB offset is to be applied to the common PUCCH repetition transmission in a state where the additional PRB offset for common PUCCH repetition transmission is enabled via higher-layer signaling (e.g., SIB, etc.), the UE can be defined as applying the additional PRB offset when performing common PUCCH repetition transmission. Otherwise, if the base station indicates through RAR MAC CE that the additional PRB offset is not to be applied to the common PUCCH repetition transmission, the UE can be defined as applying the traditional PRB offset when performing common PUCCH repetition transmission.

[0125] Alternatively, the base station may configure whether to enable / disable the additional PRB offset and / or multiple PRB offsets via higher layer signaling (e.g., SIB, etc.), and may dynamically configure / indicate which PRB offset is actually applied among the multiple PRB offsets and whether to apply the additional PRB offset through DCI (e.g., DCI format 1_0 with TC-RNTI) and / or RAR MAC CE for scheduling Msg4 PDSCH. The UE may be defined as performing common PUCCH repetition transmission by selecting the additional PRB offset value configured / indicated by the base station from among the multiple additional PRB offsets.

[0126] Alternatively, dynamic signaling can be applied to Figure 5 and Figure 6According to the method proposed in the embodiment of the present invention, the base station can configure / indicate whether to apply a specific additional PRB offset starting from a specific k-th transmission via the DCI (e.g., DCI format 1_0 with TC-RNTI) and / or RAR MAC CE for scheduling Msg4 PDSCH. That is, if the base station configures / indicates the application of a specific additional PRB offset starting from a specific k-th transmission through dynamic signaling, the UE can be defined as Figure 5 and Figure 6 If the base station configures / indicates through dynamic signaling that a specific additional PRB offset is not to be applied starting from a specific k-th transmission, it can be defined that the UE uses a conventional PRB offset to perform PUCCH repetition transmission.

[0127] In another method, the base station may configure / indicate the additional PRB offset value via higher layer signaling (eg, SIB, etc.), and may apply the additional PRB offset only to the 16 r PUCCH Some r in the value PUCCH For example, you can configure it to not PUCCH Values ​​0 to 7 (or r PUCCH values ​​8 to 15) apply additional PRB offset and only apply legacy PRB offset, and is configured to PUCCH Values ​​8 to 15 (or r PUCCH For example, if r PUCCH The value is even (or if r PUCCH If the value is an odd number), it can be configured not to apply the additional PRB offset but only the traditional PRB offset. PUCCH The value is odd (or if r PUCCH The value is an even number), it can be configured to apply an additional PRB offset to it (in addition to the traditional PRB offset). After the above configuration is performed, when the base station sends DCI format 1_0 scheduling Msg4 PDSCH, it can configure / indicate the appropriate PRI (PUCCH resource indicator) value and / or appropriate CCE index. That is, the base station can choose whether to apply the additional PRB offset suitable for the current UL resource situation and indicate the PUCCH resource. The UE can PUCCH A value is used to determine whether to apply an additional PRB offset, and PUCCH repetition transmission can be performed by applying (or not applying) the additional PRB offset in consideration of this.

[0128] The proposed method can be configured / applied to other UL signals / channels, such as PRACH / PUSCH / PUCCH. Since the examples of the above-mentioned proposed methods can also be included as one of the implementation methods of the present disclosure, it is obvious that they can be regarded as a proposed method. In addition, the above-mentioned proposed methods can be implemented independently, but can also be implemented in the form of a combination (or merger) of some proposed methods. Information about whether the proposed method is applied (or information about the rules of the proposed method) can be defined as a rule so that the base station notifies the UE via a predefined signal (e.g., a physical layer signal or a high-layer signal). For example, the high layer may include one or more of the functional layers such as MAC, RLC, PDCP, RRC and SDAP.

[0129] The methods, embodiments or descriptions for implementing the methods proposed in the present disclosure may be applied individually, or one or more methods (or embodiments or descriptions) may be applied in combination.

[0130] [Description of claims related to UE]

[0131] Below, refer to Figure 7 The above embodiments are described in detail from the perspective of UE operation. The methods described below are differentiated only for ease of explanation. Therefore, as long as these methods are not mutually exclusive, it is clear that partial configurations of any method can replace partial configurations of another method or be combined with partial configurations of another method.

[0132] Figure 7 An example of an operation process of a UE in a system applicable to the present disclosure is illustrated.

[0133] In step S710, a user equipment (UE) receives first information of an additional physical resource block (PRB) offset from a base station.

[0134] In step S720, the UE receives second information of multiple repetition factors from the base station.

[0135] In step S730, the UE determines a specific PRB for physical uplink control channel (PUCCH) repetition transmission by applying an additional PRB offset a specific number of times based on a specific repetition factor among a plurality of repetition factors.

[0136] In step S740 , the UE performs repeated transmission of the PUCCH based on a specific PRB.

[0137] According to various embodiments of the present disclosure, the specific repetition factor may correspond to an nth repetition factor among the remaining repetition factors excluding 1 from the plurality of repetition factors.

[0138] According to various embodiments of the present disclosure, the specific repetition factor may correspond to an nth repetition factor among the remaining repetition factors excluding 1 from the plurality of repetition factors sorted in ascending or descending order.

[0139] According to various embodiments of the present disclosure, a specific PRB may be determined by applying n times additional PRB offsets in addition to a configured initial PRB offset.

[0140] According to various embodiments of the present disclosure, the PUCCH may be associated with a message 4 (Msg4) for a hybrid automatic repeat request acknowledgement (HARQ-ACK).

[0141] According to various embodiments of the present disclosure, the first information may be related to PUCCH-ConfigCommon.

[0142] According to various embodiments of the present disclosure, if the additional PRB offset is not provided through the first information, the additional PRB offset may be configured to be 0.

[0143] 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 a Figure 7 UE operating method.

[0144] According to various embodiments of the present disclosure, an apparatus for controlling a user equipment (UE) 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, when executed by the at least one processor, perform operations based on Figure 7 UE operating method.

[0145] According to various embodiments of the present disclosure, one or more non-transitory computer readable media (CRMs) are provided that store one or more instructions. 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 performing operations based on Figure 7 UE operating method.

[0146] [Description of claims related to BS]

[0147] Below, refer to Figure 8 The above embodiments are described in detail from the perspective of base station operation. The methods described below are differentiated only for ease of explanation. Therefore, as long as these methods are not mutually exclusive, it is clear that partial configurations of any method can replace partial configurations of another method or be combined with partial configurations of another method.

[0148] Figure 8 An example of an operation process of a base station in a system applicable to the present disclosure is illustrated.

[0149] In step S810, a base station sends first information of an additional physical resource block (PRB) offset to a user equipment (UE).

[0150] In step S820, the base station sends second information of multiple repetition factors to the UE.

[0151] In step S830 , the base station receives repeated transmission of a physical uplink control channel (PUCCH) based on a specific PRB from the UE.

[0152] A specific PRB used for repeated transmission of the PUCCH is determined by applying an additional PRB offset a specific number of times based on a specific repetition factor among a plurality of repetition factors.

[0153] According to various embodiments of the present disclosure, the specific repetition factor may correspond to an nth repetition factor among the remaining repetition factors excluding 1 from the plurality of repetition factors.

[0154] According to various embodiments of the present disclosure, the specific repetition factor may exclude the nth repetition factor among the remaining repetition factors except 1 from the plurality of repetition factors sorted in ascending or descending order.

[0155] According to various embodiments of the present disclosure, a specific PRB may be determined by applying n times additional PRB offsets in addition to a configured initial PRB offset.

[0156] According to various embodiments of the present disclosure, the PUCCH may be associated with a message 4 (Msg4) for a hybrid automatic repeat request acknowledgement (HARQ-ACK).

[0157] According to various embodiments of the present disclosure, the first information may be related to PUCCH-ConfigCommon.

[0158] According to various embodiments of the present disclosure, if the additional PRB offset is not provided through the first information, the additional PRB offset may be configured to be 0.

[0159] 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, wherein the at least one processor may be configured to execute Figure 8 The operation method of BS.

[0160] 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 commands executed by the at least one processor based on the commands executed by the at least one processor. Figure 8 Instructions on the operating methods of the BS.

[0161] 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 execution by one or more processors, the operations may include: Figure 8 The operation method of BS.

[0162] Wireless devices suitable for the present disclosure

[0163] An example of a wireless device to which various embodiments of the present disclosure are applied is described below.

[0164] Figure 9 An example of the structure of the first device and the second device applicable to the system of the present disclosure is shown.

[0165] The first device 1600 may include a processor 1610 , an antenna unit 1620 , a transceiver 1630 , and a memory 1640 .

[0166] The processor 1610 can perform baseband-related signal processing and includes a high-level processing unit 1611 and a physical layer processing unit 1615. The high-level processing unit 1611 can process operations of the MAC layer, the RRC layer, or the high-level layer. The physical layer processing unit 1615 can 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 can perform uplink received signal processing, downlink transmitted signal processing, etc. For example, if the first device 1600 is a first UE device in inter-UE communication, the physical layer processing unit 1615 can perform downlink received signal processing, uplink transmitted signal processing, sidelink transmitted signal processing, etc. In addition to performing baseband-related signal processing, the processor 1610 can also control the overall operation of the first device 1600.

[0167] The antenna unit 1620 may include one or more physical antennas, and if the antenna unit 1620 includes multiple antennas, MIMO transmission / reception is supported. 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 a buffer.

[0168] In the embodiments described in the present disclosure, the processor 1610 of the first apparatus 1600 may be configured to implement operations of a BS in BS-UE communication (or operations of a first UE device in inter-UE communication).

[0169] The second device 1650 may include a processor 1660 , an antenna unit 1670 , a transceiver 1680 , and a memory 1690 .

[0170] The processor 1660 can perform baseband-related signal processing and includes a high-level processing unit 1661 and a physical layer processing unit 1665. The high-level processing unit 1661 can process operations at the MAC layer, the RRC layer, or a high-level layer. The physical layer processing unit 1665 can process operations at the PHY layer. For example, if the second device 1650 is a UE device in BS-UE communication, the physical layer processing unit 1665 can perform downlink received signal processing, uplink transmitted signal processing, etc. For example, if the second device 1650 is a second UE device in inter-UE communication, the physical layer processing unit 1665 can perform downlink received signal processing, uplink transmitted signal processing, sidelink received signal processing, etc. In addition to performing baseband-related signal processing, the processor 1660 can also control the overall operation of the second device 1660.

[0171] The antenna unit 1670 may include one or more physical antennas, and if the antenna unit 1670 includes multiple antennas, MIMO transmission / reception is supported. The transceiver 1680 may include an RF transmitter and an RF receiver. The memory 1690 may store information processed by the processor 1660 and software, an operating system, and applications related to the operation of the second device 1650. The memory 1690 may also include components such as a buffer.

[0172] In the embodiments described in the present disclosure, 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 inter-UE communication).

[0173] The description of the BS and the UE in BS-UE communication (or the first UE device and the second UE device in inter-UE communication) in the examples of the present disclosure can be equally applied to the operations of the first device 1600 and the second device 1650, and redundant description is omitted.

[0174] 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.

[0175] 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. In addition, 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 of operating a user equipment (UE) in a wireless communication system, the method comprising: receiving first information of an additional physical resource block (PRB) offset from a base station; receiving second information of a plurality of repetition factors from the base station; determining a specific PRB for repeated transmission of a physical uplink control channel (PUCCH) by applying the additional PRB offset a specific number of times based on a specific repetition factor among the plurality of repetition factors; and The repetitive transmission of the PUCCH is performed based on the specific PRB.

2. The method according to claim 1, wherein The specific repetition factor is associated with an nth repetition factor among the remaining repetition factors excluding 1 from the plurality of repetition factors.

3. The method according to claim 2, wherein: The specific repetition factor is associated with an nth repetition factor among the remaining repetition factors excluding 1 from the plurality of repetition factors sorted in ascending or descending order.

4. The method according to claim 3, wherein: The specific PRB is determined by applying the additional PRB offset n times in addition to the configured initial PRB offset.

5. The method according to claim 1, wherein The PUCCH is associated with message 4 (Msg4) for hybrid automatic repeat request acknowledgement (HARQ-ACK).

6. The method according to claim 1, wherein The first information is related to PUCCH-ConfigCommon.

7. The method according to claim 1, wherein Based on the additional PRB offset not being provided through the first information, the additional PRB offset is configured to be 0.

8. A method of operating a base station in a wireless communication system, the method comprising: Sending first information of an additional physical resource block (PRB) offset to a user equipment (UE); Sending second information of multiple repetition factors to the UE; as well as receiving, from the UE, repeated transmissions of a physical uplink control channel (PUCCH) based on a specific PRB, The specific PRB used for the repeated transmission of the PUCCH is determined by applying the additional PRB offset a specific number of times based on a specific repetition factor among the multiple repetition factors.

9. The method according to claim 8, wherein The specific repetition factor is associated with an nth repetition factor among the remaining repetition factors excluding 1 from the plurality of repetition factors.

10. The method according to claim 9, wherein: The specific repetition factor is associated with an nth repetition factor among the remaining repetition factors excluding 1 from the plurality of repetition factors sorted in ascending or descending order.

11. The method according to claim 10, wherein: The specific PRB is determined by applying the additional PRB offset n times in addition to the configured initial PRB offset.

12. The method according to claim 8, wherein The PUCCH is associated with message 4 (Msg4) for hybrid automatic repeat request acknowledgement (HARQ-ACK).

13. The method according to claim 8, wherein The first information is related to PUCCH-ConfigCommon.

14. The method according to claim 8, wherein Based on the additional PRB offset not being provided through the first information, the additional PRB offset is configured to be 0.

15. A user equipment (UE) in a wireless communication system, the UE comprising: transceiver; at least one processor; as well as at least one memory operatively connectable to the at least one processor and configured to store instructions that, upon execution by the at least one processor, perform operations, The operation includes 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: transceiver; at least one processor; as well as at least one memory operatively connectable to the at least one processor and configured to store instructions that, upon execution by the at least one processor, perform operations, The operation includes 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; as well as at least one memory operatively connected to the at least one processor, wherein the at least one memory is configured to store instructions, the instructions being executed by the at least one processor to perform operations, and The operation includes 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; as well as at least one memory operatively connectable to the at least one processor, wherein the at least one memory is configured to store instructions, the instructions being executed by the at least one processor to perform operations, and The operation includes 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, in, The one or more instructions are configured to perform operations upon execution by one or more processors, and The operation includes 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, in, The one or more instructions are configured to perform operations upon execution by one or more processors, and The operation includes all steps of the method according to any one of claims 8 to 14.

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