Method and apparatus for transmitting uplink channel in communication system

Abstract

A method and an apparatus for transmitting an uplink channel in a communication system are disclosed. The method of a UE comprises the steps of: receiving, from a base station, a configuration for a first PUCCH transmission based on an STxMP SFN scheme; receiving, from the base station, a configuration for a first PUSCH transmission based on another scheme rather than the STxMP SFN scheme; and performing one UL transmission on the basis of a predefined rule if the first PUCCH transmission and the first PUSCH transmission overlap in a time domain.

Description

Method and device for transmitting an uplink channel in a communication system

[0001] The present disclosure relates to communication technology, and more particularly, to an uplink transmission technology based on STxMP (simultaneous transmission across multiple panels).

[0002] Communication networks (e.g., 5G communication networks, 6G communication networks, etc.) are being developed to provide improved communication services compared to existing communication networks (e.g., long term evolution (LTE), advanced LTE-A (LTE-A), etc.). 5G communication networks (e.g., new radio (NR) communication networks) can support frequency bands above 6 GHz as well as frequency bands below 6 GHz. That is, 5G communication networks can support FR1 bands and / or FR2 bands. 5G communication networks can support various communication services and scenarios compared to LTE communication networks. For example, usage scenarios of 5G communication networks can include enhanced Mobile Broadband (eMBB), Ultra Reliable Low Latency Communication (URLLC), massive Machine Type Communication (mMTC), etc.

[0003] Compared to 5G, 6G communication networks can support a wider range of communication services and scenarios. 6G communication networks can meet requirements for ultra-high performance, ultra-high bandwidth, ultra-high space, ultra-high precision, ultra-intelligence, and / or ultra-reliability. 6G communication networks can support diverse and wide frequency bands and be applied to various usage scenarios (e.g., terrestrial communications, non-terrestrial communications, sidelink communications, etc.).

[0004] Meanwhile, multiple transmission and reception points (mTRPs) can be introduced into communication networks (e.g., 5G and / or 6G). mTRPs can be geographically separated. Base stations can use mTRPs to communicate with terminals. mTRP technology can be used to address quality of service (QoS) degradation issues for cell-edge terminals and / or inter-cell interference issues. mTRP technology can also be used to provide additional communication paths in environments where non-line-of-sight (NLOS) paths are limited.

[0005] mTRP-based communication can be performed based on either the coherent joint transmission (CJT) scheme or the non-CJT (NCJT) scheme. In the CJT scheme, mTRP can perform cooperative communication based on a stable backhaul link and provide synchronized communication services to terminals. In the NCJT scheme, mTRP can provide communication services to terminals without cooperation. For example, in the NCJT scheme, mTRP can perform scheduling operations, precoding matrix selection operations, and modulation and coding scheme (MCS) determination operations without cooperation.

[0006] PUCCH (physical uplink control channel) transmission and PUSCH (physical uplink shared channel) transmission can be configured for the UE, and PUCCH and PUSCH transmissions can overlap in the time domain. In this case, the UE cannot perform both PUCCH and PUSCH transmissions, which can cause ambiguity in the UE's UL (uplink) transmission. Therefore, when PUCCH and PUSCH transmissions overlap in the time domain, it is necessary to define which UL transmission the UE performs.

[0007] The purpose of the present disclosure to solve the above problems is to provide a method and device for uplink transmission based on STxMP (simultaneous transmission across multiple panels).

[0008] A method of a UE according to embodiments of the present disclosure for achieving the above object includes the steps of receiving, from a base station, a configuration for a first PUCCH transmission based on a STxMP SFN scheme, receiving, from the base station, a configuration for a first PUSCH transmission based on a scheme other than the STxMP SFN scheme, and performing one UL transmission based on a predefined rule when the first PUCCH transmission and the first PUSCH transmission overlap in the time domain.

[0009] The step of performing the above one UL transmission may include the step of performing the first PUCCH transmission when repetition for the first PUCCH transmission is set, and the first PUSCH transmission may be dropped or delayed.

[0010] The step of performing the above one UL transmission may include the step of performing the first PUSCH transmission when repetition for the first PUCCH transmission is not set, and UCI may be multiplexed in the first PUSCH transmission.

[0011] The step of performing the above one UL transmission may include the step of performing the first PUCCH transmission, regardless of whether repetition is set for the first PUCCH transmission, and the first PUSCH transmission may be dropped or delayed.

[0012] The method of the UE may further include the step of receiving a setting of repetition for the first PUCCH transmission from the base station.

[0013] If the UE includes multiple panels, the presence or absence of repetition settings for PUCCH transmission can be set for each panel of the UE.

[0014] The UE may include a first panel and a second panel, and the first PUCCH transmission and the second PUSCH transmission may be configured for the first panel, the second PUCCH transmission and the second PUSCH transmission may be configured for the second panel, and the configuration of UL transmissions per panel may be independent.

[0015] The above other method may be a TDM-based repetitive transmission method or an SDM method.

[0016] A method of a UE according to embodiments of the present disclosure for achieving the above object includes the steps of receiving, from a base station, a configuration for a first PUCCH transmission based on a scheme other than a STxMP SFN scheme, receiving, from the base station, a configuration for a first PUSCH transmission based on the STxMP SFN scheme, and performing one UL transmission based on a predefined rule when the first PUCCH transmission and the first PUSCH transmission overlap in the time domain.

[0017] The step of performing the above one UL transmission may include the step of performing the first PUCCH transmission when repetition for the first PUCCH transmission is set, and the first PUSCH transmission may be dropped or delayed.

[0018] The step of performing the above one UL transmission may include the step of performing the first PUSCH transmission when repetition for the first PUCCH transmission is not set, and UCI may be multiplexed in the first PUSCH transmission.

[0019] The step of performing the above one UL transmission may include the step of performing the first PUCCH transmission, regardless of whether repetition is set for the first PUCCH transmission, and the first PUSCH transmission may be dropped or delayed.

[0020] The method of the UE may further include the step of receiving a setting of repetition for the first PUCCH transmission from the base station.

[0021] If the UE includes multiple panels, the presence or absence of repetition settings for PUCCH transmission can be set for each panel of the UE.

[0022] The UE may include a first panel and a second panel, and the first PUCCH transmission and the second PUSCH transmission may be configured for the first panel, the second PUCCH transmission and the second PUSCH transmission may be configured for the second panel, and the configuration of UL transmissions per panel may be independent.

[0023] The above other method may be a TDM-based repetitive transmission method or an SDM method.

[0024] A method of a UE according to embodiments of the present disclosure for achieving the above object includes the steps of receiving, from a base station, a configuration for a first PUCCH transmission based on a STxMP SFN scheme, receiving, from the base station, a configuration for a first PUSCH transmission based on the STxMP SFN scheme, and, when the first PUCCH transmission and the first PUSCH transmission overlap in the time domain, performing one UL transmission based on a predefined rule.

[0025] The step of performing the above one UL transmission may include the step of performing the first PUCCH transmission when repetition for the first PUCCH transmission is set, and the first PUSCH transmission may be dropped or delayed.

[0026] The step of performing the above one UL transmission may include the step of performing the first PUSCH transmission when repetition for the first PUCCH transmission is not set, and UCI may be multiplexed in the first PUSCH transmission.

[0027] The step of performing the above one UL transmission may include the step of performing the first PUCCH transmission, regardless of whether repetition is set for the first PUCCH transmission, and the first PUSCH transmission may be dropped or delayed.

[0028] According to the present disclosure, in a communication system supporting a simultaneous transmission across multiple panels (STxMP) and single frequency network (SFN) scheme, when a physical uplink control channel (PUCCH) transmission and a physical uplink shared channel (PUSCH) transmission collide, ambiguity in uplink (UL) transmission can be resolved. When repeated PUCCH transmissions and PUSCH transmissions collide, a terminal can perform PUCCH transmission with priority. When non-repeated PUCCH transmissions and PUSCH transmissions collide, a terminal can perform PUSCH transmission with priority. Therefore, UL transmission can be performed efficiently, and the performance of the communication system can be improved.

[0029] Figure 1 is a conceptual diagram illustrating embodiments of a communication system.

[0030] Figure 2 is a block diagram illustrating embodiments of communication nodes constituting a communication system.

[0031] Figure 3 is a block diagram illustrating embodiments of communication nodes that perform communication.

[0032] Figure 4a is a block diagram illustrating embodiments of a transmission path.

[0033] Figure 4b is a block diagram illustrating embodiments of a receiving path.

[0034] Figure 5 is a conceptual diagram illustrating embodiments of system frames in a communication system.

[0035] Figure 6 is a conceptual diagram illustrating embodiments of subframes in a communication system.

[0036] Figure 7 is a conceptual diagram illustrating embodiments of slots in a communication system.

[0037] Figure 8 is a conceptual diagram illustrating embodiments of time-frequency resources in a communication system.

[0038] Figure 9 is a conceptual diagram illustrating embodiments of a UL transmission method.

[0039] Figure 10 is a conceptual diagram illustrating embodiments of a UL transmission method.

[0040] Figure 11 is a conceptual diagram illustrating embodiments of a UL transmission method.

[0041] This disclosure may be subject to various modifications and various embodiments. Specific embodiments are illustrated and described in detail in the drawings. However, this is not intended to limit the disclosure to specific embodiments, but rather to encompass all modifications, equivalents, and alternatives falling within the spirit and technical scope of the disclosure.

[0042] While terms such as "first" and "second" may be used to describe various components, these components should not be limited by these terms. These terms are used solely to distinguish one component from another. For example, without departing from the scope of the present disclosure, a first component could be referred to as a "second component," and similarly, a second component could also be referred to as a "first component." The term "and / or" may refer to a combination of multiple related items described herein or to any of multiple related items described herein.

[0043] In the present disclosure, “at least one of A and B” may mean “at least one of A or B” or “at least one of combinations of one or more of A and B.” Additionally, in the present disclosure, “at least one of A and B” may mean “at least one of A or B” or “at least one of combinations of one or more of A and B.”

[0044] In the present disclosure, (re)transmission may mean “transmission,” “retransmission,” or “transmission and retransmission,” (re)setting may mean “setting,” “resetting,” or “setting and resetting,” (re)connection may mean “connection,” “reconnection,” or “connection and reconnection,” and (re)connection may mean “connection,” “reconnection,” or “connection and reconnection.”

[0045] When a component is referred to as being "connected" or "connected" to another component, it should be understood that it may be directly connected or connected to that other component, but that there may be other components intervening. Conversely, when a component is referred to as being "directly connected" or "connected" to another component, it should be understood that there are no other components intervening.

[0046] The terminology used in this disclosure is only used to describe specific embodiments and is not intended to limit the present disclosure. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this disclosure, it should be understood that the terms "comprises" or "has" indicate the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0047] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which this disclosure pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and shall not be interpreted in an idealized or overly formal sense unless explicitly defined herein.

[0048] Hereinafter, preferred embodiments of the present disclosure will be described in more detail with reference to the attached drawings. In order to facilitate an overall understanding in describing the present disclosure, the same reference numerals will be used for identical components in the drawings, and redundant descriptions of identical components will be omitted. In addition to the embodiments explicitly described in the present disclosure, operations may be performed according to combinations of embodiments, extensions of embodiments, and / or modifications of embodiments. The performance of some operations may be omitted, and the order of operation may be changed.

[0049] In an embodiment, even if a method (e.g., transmitting or receiving a signal) performed by a first communication node among communication nodes is described, a corresponding second communication node can perform a method (e.g., receiving or transmitting a signal) corresponding to the method performed by the first communication node. That is, if an operation of a UE (user equipment) is described, a corresponding base station can perform an operation corresponding to the operation of the UE. Conversely, if an operation of a base station is described, a corresponding UE can perform an operation corresponding to the operation of the base station.

[0050] A base station may be referred to as a NodeB, an evolved NodeB, a gNodeB (next generation node B), a gNB, a device, an apparatus, a node, a communication node, a BTS (base transceiver station), a RRH (radio remote head), a TRP (transmission reception point), a RU (radio unit), an RSU (road side unit), a radio transceiver, an access point, an access node, etc. A UE may be referred to as a terminal, a device, an apparatus, a node, a communication node, an end node, an access terminal, a mobile terminal, a station, a subscriber station, a mobile station, a portable subscriber station, an OBU (on-broad unit), etc.

[0051] In the present disclosure, signaling may be at least one of upper layer signaling, MAC signaling, or PHY (physical) signaling. A message used for upper layer signaling may be referred to as an "upper layer message" or an "upper layer signaling message." A message used for MAC signaling may be referred to as a "MAC message" or a "MAC signaling message." A message used for PHY signaling may be referred to as a "PHY message" or a "PHY signaling message." Upper layer signaling may refer to a transmission and reception operation of system information (e.g., a master information block (MIB), a system information block (SIB)) and / or a radio resource control (RRC) message. MAC signaling may refer to a transmission and reception operation of a MAC control element (CE). PHY signaling may refer to a transmission and reception operation of control information (e.g., downlink control information (DCI), uplink control information (UCI), sidelink control information (SCI)).

[0052] In the present disclosure, “an operation (e.g., a transmission operation) is set” may mean that “setting information for the operation (e.g., an information element, a parameter)” and / or “information instructing the performance of the operation” is signaled. “An information element (e.g., a parameter) is set” may mean that the information element is signaled. In the present disclosure, “a signal and / or a channel” may mean a signal, a channel, or “a signal and a channel,” and a signal may be used to mean “a signal and / or a channel.”

[0053] The communication network to which the embodiment is applied is not limited to what is described below, and the embodiment may be applied to various communication networks (e.g., 4G communication networks, 5G communication networks, and / or 6G communication networks). Here, the communication network may be used in the same sense as the communication system.

[0054] Figure 1 is a conceptual diagram illustrating embodiments of a communication system.

[0055] Referring to FIG. 1, the communication system (100) may include a plurality of communication nodes (110-1, 110-2, 110-3, 120-1, 120-2, 130-1, 130-2, 130-3, 130-4, 130-5, 130-6). In addition, the communication system (100) may further include a core network (e.g., a serving-gateway (S-GW), a packet data network (PDN)-gateway (P-GW), a mobility management entity (MME)). If the communication system (100) is a 5G communication system (e.g., a new radio (NR) system), the core network may include an access and mobility management function (AMF), a user plane function (UPF), a session management function (SMF), etc.

[0056] A plurality of communication nodes (110 to 130) can support a communication protocol (e.g., LTE communication protocol, LTE-A communication protocol, NR communication protocol, etc.) specified in the 3GPP (3rd generation partnership project) standard. The plurality of communication nodes (110 to 130) may support CDMA (code division multiple access) technology, WCDMA (wideband CDMA) technology, TDMA (time division multiple access) technology, FDMA (frequency division multiple access) technology, OFDM (orthogonal frequency division multiplexing) technology, Filtered OFDM technology, CP (cyclic prefix)-OFDM technology, DFT-s-OFDM (discrete Fourier transform-spread-OFDM) technology, OFDMA (orthogonal frequency division multiple access) technology, SC (single carrier)-FDMA technology, NOMA (non-orthogonal multiple access) technology, GFDM (generalized frequency division multiplexing) technology, FBMC (filter bank multi-carrier) technology, UFMC (universal filtered multi-carrier) technology, SDMA (space division multiple access) technology, etc. Each of the plurality of communication nodes may have the following structure.

[0057] Figure 2 is a block diagram illustrating embodiments of communication nodes constituting a communication system.

[0058] Referring to FIG. 2, a communication node (200) may include at least one processor (210), a memory (220), and a transmission / reception device (230) that is connected to a network and performs communication. In addition, the communication node (200) may further include an input interface device (240), an output interface device (250), a storage device (260), etc. Each component included in the communication node (200) may be connected by a bus (270) and communicate with each other.

[0059] The processor (210) can execute program commands stored in at least one of the memory (220) and the storage device (260). The processor (210) may refer to a central processing unit (CPU), a graphics processing unit (GPU), or a dedicated processor in which the methods according to embodiments of the present disclosure are performed. Each of the memory (220) and the storage device (260) may be configured with at least one of a volatile storage medium and a non-volatile storage medium. For example, the memory (220) may be configured with at least one of a read-only memory (ROM) and a random access memory (RAM).

[0060] Referring again to FIG. 1, the communication system (100) may include a plurality of base stations (110-1, 110-2, 110-3, 120-1, 120-2) and a plurality of terminals (130-1, 130-2, 130-3, 130-4, 130-5, 130-6). Each of the first base station (110-1), the second base station (110-2), and the third base station (110-3) may form a macro cell. Each of the fourth base station (120-1) and the fifth base station (120-2) may form a small cell. The fourth base station (120-1), the third terminal (130-3), and the fourth terminal (130-4) may be within the cell coverage of the first base station (110-1). The second terminal (130-2), the fourth terminal (130-4), and the fifth terminal (130-5) may be within the cell coverage of the second base station (110-2). The fifth base station (120-2), the fourth terminal (130-4), the fifth terminal (130-5), and the sixth terminal (130-6) may be within the cell coverage of the third base station (110-3). The first terminal (130-1) may be within the cell coverage of the fourth base station (120-1). The sixth terminal (130-6) may be within the cell coverage of the fifth base station (120-2).

[0061] Here, each of the plurality of base stations (110-1, 110-2, 110-3, 120-1, 120-2) may be referred to as a NodeB (NB), an evolved NodeB (eNB), a gNB, an advanced base station (ABS), a high reliability-base station (HR-BS), a base transceiver station (BTS), a radio base station, a radio transceiver, an access point, an access node, a radio access station (RAS), a mobile multihop relay-base station (MMR-BS), a relay station (RS), an advanced relay station (ARS), a high reliability-relay station (HR-RS), a home NodeB (HNB), a home eNodeB (HeNB), a road side unit (RSU), a radio remote head (RRH), a transmission point (TP), a transmission and reception point (TRP), etc.

[0062] Each of the plurality of terminals (130-1, 130-2, 130-3, 130-4, 130-5, 130-6) may be referred to as a user equipment (UE), terminal equipment (TE), advanced mobile station (AMS), high reliability-mobile station (HR-MS), terminal, access terminal, mobile terminal, station, subscriber station, mobile station, portable subscriber station, node, device, on board unit (OBU), etc.

[0063] Meanwhile, each of the plurality of base stations (110-1, 110-2, 110-3, 120-1, 120-2) may operate in a different frequency band or may operate in the same frequency band. Each of the plurality of base stations (110-1, 110-2, 110-3, 120-1, 120-2) may be connected to each other via an ideal backhaul link or a non-ideal backhaul link, and may exchange information with each other via the ideal backhaul link or the non-ideal backhaul link. Each of the plurality of base stations (110-1, 110-2, 110-3, 120-1, 120-2) may be connected to the core network via the ideal backhaul link or the non-ideal backhaul link. Each of the plurality of base stations (110-1, 110-2, 110-3, 120-1, 120-2) can transmit a signal received from the core network to the corresponding terminal (130-1, 130-2, 130-3, 130-4, 130-5, 130-6), and can transmit a signal received from the corresponding terminal (130-1, 130-2, 130-3, 130-4, 130-5, 130-6) to the core network.

[0064] Additionally, each of the plurality of base stations (110-1, 110-2, 110-3, 120-1, 120-2) may support MIMO transmission (e.g., single user (SU)-MIMO, multi user (MU)-MIMO, massive MIMO, etc.), coordinated multipoint (CoMP) transmission, carrier aggregation (CA) transmission, transmission in an unlicensed band, sidelink communication (e.g., device to device communication (D2D), proximity services (ProSe)), Internet of Things (IoT) communication, dual connectivity (DC), etc. Here, each of the plurality of terminals (130-1, 130-2, 130-3, 130-4, 130-5, 130-6) can perform an operation corresponding to the base station (110-1, 110-2, 110-3, 120-1, 120-2) and an operation supported by the base station (110-1, 110-2, 110-3, 120-1, 120-2). For example, the second base station (110-2) can transmit a signal to the fourth terminal (130-4) based on the SU-MIMO scheme, and the fourth terminal (130-4) can receive a signal from the second base station (110-2) by the SU-MIMO scheme. Alternatively, the second base station (110-2) can transmit signals to the fourth terminal (130-4) and the fifth terminal (130-5) based on the MU-MIMO method, and each of the fourth terminal (130-4) and the fifth terminal (130-5) can receive signals from the second base station (110-2) based on the MU-MIMO method.

[0065] Each of the first base station (110-1), the second base station (110-2), and the third base station (110-3) can transmit a signal to the fourth terminal (130-4) based on the CoMP scheme, and the fourth terminal (130-4) can receive a signal from the first base station (110-1), the second base station (110-2), and the third base station (110-3) based on the CoMP scheme. Each of the plurality of base stations (110-1, 110-2, 110-3, 120-1, 120-2) can transmit and receive a signal with terminals (130-1, 130-2, 130-3, 130-4, 130-5, 130-6) within its cell coverage based on the CA scheme. Each of the first base station (110-1), the second base station (110-2), and the third base station (110-3) can control sidelink communication between the fourth terminal (130-4) and the fifth terminal (130-5), and each of the fourth terminal (130-4) and the fifth terminal (130-5) can perform sidelink communication under the control of the second base station (110-2) and the third base station (110-3), respectively.

[0066] Meanwhile, communication nodes performing communication in a communication network may be configured as follows. The communication node illustrated in Fig. 3 may be a specific embodiment of the communication node illustrated in Fig. 2.

[0067] Figure 3 is a block diagram illustrating embodiments of communication nodes that perform communication.

[0068] Referring to FIG. 3, each of the first communication node (300a) and the second communication node (300b) may be a base station or a UE. The first communication node (300a) may transmit a signal to the second communication node (300b). The transmission processor (311) included in the first communication node (300a) may receive data (e.g., a data unit) from a data source (310). The transmission processor (311) may receive control information from the controller (316). The control information may include at least one of system information, RRC configuration information (e.g., information configured by RRC signaling), MAC control information (e.g., MAC CE), or PHY control information (e.g., DCI, SCI).

[0069] The transmitting processor (311) may perform a processing operation on data (e.g., an encoding operation, a symbol mapping operation, etc.) to generate data symbol(s). The transmitting processor (311) may perform a processing operation on control information (e.g., an encoding operation, a symbol mapping operation, etc.) to generate control symbol(s). In addition, the transmitting processor (311) may generate synchronization / reference symbol(s) for a synchronization signal and / or a reference signal.

[0070] The Tx MIMO processor (312) may perform a spatial processing operation (e.g., a precoding operation) on data symbol(s), control symbol(s), and / or synchronization / reference symbol(s). The output (e.g., a symbol stream) of the Tx MIMO processor (312) may be provided to modulators (MODs) included in the transceivers (313a to 313t). The modulators (MODs) may perform a processing operation on the symbol stream to generate modulation symbols, and may perform an additional processing operation (e.g., an analog conversion operation, an amplification operation, a filtering operation, an upconversion operation) on the modulation symbols to generate signals. The signals generated by the modulators (MODs) of the transceivers (313a to 313t) may be transmitted via the antennas (314a to 314t).

[0071] Signals transmitted by the first communication node (300a) may be received by antennas (364a to 364r) of the second communication node (300b). Signals received by the antennas (364a to 364r) may be provided to demodulators (DEMODs) included in transceivers (363a to 363r). The demodulator (DEMOD) may perform a processing operation (e.g., a filtering operation, an amplification operation, a downconversion operation, a digital conversion operation) on the signal to obtain samples. The demodulator (DEMOD) may perform an additional processing operation on the samples to obtain symbols. The MIMO detector (362) may perform a MIMO detection operation on the symbols. The receiving processor (361) may perform a processing operation (e.g., a deinterleaving operation, a decoding operation) on the symbols. The output of the receiving processor (361) may be provided to a data sink (360) and a controller (366). For example, data may be provided to the data sink (360), and control information may be provided to the controller (366).

[0072] Meanwhile, the second communication node (300b) can transmit a signal to the first communication node (300a). The transmitting processor (368) included in the second communication node (300b) can receive data (e.g., data units) from a data source (367) and perform a processing operation on the data to generate data symbol(s). The transmitting processor (368) can receive control information from the controller (366) and perform a processing operation on the control information to generate control symbol(s). In addition, the transmitting processor (368) can perform a processing operation on a reference signal to generate reference symbol(s).

[0073] The Tx MIMO processor (369) may perform spatial processing operations (e.g., precoding operations) on data symbol(s), control symbol(s), and / or reference symbol(s). The output (e.g., symbol stream) of the Tx MIMO processor (369) may be provided to modulators (MODs) included in the transceivers (363a to 363t). The modulators (MODs) may perform processing operations on the symbol streams to generate modulation symbols, and may perform additional processing operations (e.g., analog conversion operations, amplification operations, filtering operations, upconversion operations) on the modulation symbols to generate signals. The signals generated by the modulators (MODs) of the transceivers (363a to 363t) may be transmitted via the antennas (364a to 364t).

[0074] Signals transmitted by the second communication node (300b) may be received by the antennas (314a to 314r) of the first communication node (300a). The signals received by the antennas (314a to 314r) may be provided to demodulators (DEMODs) included in the transceivers (313a to 313r). The demodulator (DEMOD) may perform a processing operation (e.g., a filtering operation, an amplification operation, a downconversion operation, a digital conversion operation) on the signal to obtain samples. The demodulator (DEMOD) may perform an additional processing operation on the samples to obtain symbols. The MIMO detector (320) may perform a MIMO detection operation on the symbols. The receiving processor (319) may perform a processing operation (e.g., a deinterleaving operation, a decoding operation) on the symbols. The output of the receiving processor (319) may be provided to a data sink (318) and a controller (316). For example, data may be provided to the data sink (318) and control information may be provided to the controller (316).

[0075] Memories (315 and 365) can store data, control information, and / or program code. Scheduler (317) can perform scheduling operations for communication. The processors (311, 312, 319, 361, 368, 369) and controllers (316, 366) illustrated in FIG. 3 may be the processor (210) illustrated in FIG. 2 and may be used to perform the methods described in the present disclosure.

[0076] FIG. 4a is a block diagram illustrating embodiments of a transmission path, and FIG. 4b is a block diagram illustrating embodiments of a reception path.

[0077] Referring to FIGS. 4A and 4B, a transmission path (410) may be implemented in a communication node that transmits a signal, and a reception path (420) may be implemented in a communication node that receives a signal. The transmission path (410) may include a channel coding and modulation block (411), an S-to-P (serial-to-parallel) block (512), an N IFFT (Inverse Fast Fourier Transform) block (413), a P-to-S (parallel-to-serial) block (414), a CP (cyclic prefix) addition block (415), and an UC (up-converter) (UC) (416). The receiving path (420) may include a DC (down-converter) (421), a CP removal block (422), an S-to-P block (423), an N FFT block (424), a P-to-S block (425), and a channel decoding and demodulation block (426). Here, N may be a natural number.

[0078] In the transmission path (410), information bits may be input to a channel coding and modulation block (411). The channel coding and modulation block (411) may perform a coding operation (e.g., a low-density parity check (LDPC) coding operation, a polar coding operation, etc.) and a modulation operation (e.g., a quadrature phase shift keying (QPSK), a quadrature amplitude modulation (QAM), etc.) on the information bits. The output of the channel coding and modulation block (411) may be a sequence of modulation symbols.

[0079] The S-to-P block (412) can convert modulation symbols in the frequency domain into parallel symbol streams to generate N parallel symbol streams. N can be an IFFT size or an FFT size. The N IFFT block (413) can perform an IFFT operation on the N parallel symbol streams to generate signals in the time domain. The P-to-S block (414) can convert the output (e.g., parallel signals) of the N IFFT block (413) into a serial signal to generate a serial signal.

[0080] The CP addition block (415) can insert a CP into a signal. The UC (416) can up-convert the frequency of the output of the CP addition block (415) to an RF (radio frequency) frequency. Additionally, the output of the CP addition block (415) can be filtered at the baseband before up-conversion.

[0081] A signal transmitted from a transmission path (410) may be input to a reception path (420). An operation in the reception path (420) may be the reverse operation of the operation in the transmission path (410). A DC (421) may down-convert the frequency of the received signal to a baseband frequency. A CP removal block (422) may remove a CP from a signal. The output of the CP removal block (422) may be a serial signal. An S-to-P block (423) may convert the serial signal into parallel signals. An N FFT block (424) may perform an FFT algorithm to generate N parallel signals. A P-to-S block (425) may convert the parallel signals into a sequence of modulation symbols. A channel decoding and demodulation block (426) may perform a demodulation operation on the modulation symbols and perform a decoding operation on the result of the demodulation operation to restore data.

[0082] In FIGS. 4A and 4B , Discrete Fourier Transform (DFT) and Inverse DFT (IDFT) may be used instead of FFT and IFFT. Each of the blocks (e.g., components) in FIGS. 4A and 4B may be implemented by at least one of hardware, software, or firmware. For example, some of the blocks in FIGS. 4A and 4B may be implemented by software, and the remaining blocks may be implemented by hardware or a “combination of hardware and software.” In FIGS. 4A and 4B , a block may be subdivided into multiple blocks, multiple blocks may be integrated into a single block, some blocks may be omitted, and blocks supporting other functions may be added.

[0083] Figure 5 is a conceptual diagram illustrating embodiments of a system frame in a communication system.

[0084] Referring to FIG. 5, time resources in a communication system can be divided into frame units. For example, system frames can be set consecutively in the time domain of the communication system. The length of a system frame can be 10 ms (milliseconds). The system frame number (SFN) can be set from #0 to #1023. In this case, 1024 system frames can be repeated in the time domain of the communication system. For example, the SFN of the system frame after system frame #1023 can be #0.

[0085] A system frame may include two half frames. A half frame may be 5 ms long. A half frame located at the beginning of the system frame may be referred to as "half frame #0," and a half frame located at the end of the system frame may be referred to as "half frame #1." A system frame may include 10 subframes. A subframe may be 1 ms long. The 10 subframes within a system frame may be referred to as "subframes #0-9."

[0086] Figure 6 is a conceptual diagram illustrating embodiments of subframes in a communication system.

[0087] Referring to FIG. 6, one subframe may include n slots, where n may be a natural number. Accordingly, one subframe may be composed of one or more slots.

[0088] Figure 7 is a conceptual diagram illustrating embodiments of slots in a communication system.

[0089] Referring to FIG. 7, a single slot may include one or more symbols. A single slot illustrated in FIG. 7 may include 14 symbols. The length of a slot may vary depending on the number and length of symbols contained in the slot. Alternatively, the length of a slot may vary depending on numerology.

[0090] In a communication system, the numerology applied to physical signals and channels may be variable. The numerology may be variable to meet various technical requirements of the communication system. In a communication system applying CP (cyclic prefix)-based OFDM waveform technology, the numerology may include subcarrier spacing and CP length (or CP type). Table 1 may be a first embodiment of a method for configuring a numerology for a CP-OFDM-based communication system. At least some of the numerologies in Table 1 may be supported depending on the frequency band in which the communication system operates. In addition, the communication system may additionally support numerologies not listed in Table 1.

[0091]

[0092] When the subcarrier spacing is 15 kHz (e.g., μ=0), the slot length can be 1 ms. In this case, one system frame can contain 10 slots. When the subcarrier spacing is 30 kHz (e.g., μ=1), the slot length can be 0.5 ms. In this case, one system frame can contain 20 slots.

[0093] When the subcarrier spacing is 60 kHz (e.g., μ=2), the slot length can be 0.25 ms. In this case, one system frame can contain 40 slots. When the subcarrier spacing is 120 kHz (e.g., μ=3), the slot length can be 0.125 ms. In this case, one system frame can contain 80 slots. When the subcarrier spacing is 240 kHz (e.g., μ=4), the slot length can be 0.0625 ms. In this case, one system frame can contain 160 slots.

[0094] A symbol may be configured as a downlink (DL) symbol, a flexible (FL) symbol, or an uplink (UL) symbol. A slot consisting solely of DL symbols may be referred to as a "DL slot," a slot consisting solely of FL symbols may be referred to as an "FL slot," and a slot consisting solely of UL symbols may be referred to as a "UL slot."

[0095] The slot format can be semi-statically configured by higher layer signaling (e.g., RRC signaling). Information indicating the semi-static slot format can be included in the system information, and the semi-static slot format can be configured cell-specifically. In addition, the semi-static slot format can be additionally configured for each terminal through terminal-specific higher layer signaling (e.g., RRC signaling). The flexible symbol of the cell-specifically configured slot format can be overridden to a downlink symbol or an uplink symbol by terminal-specific higher layer signaling. In addition, the slot format can be dynamically indicated by physical layer signaling (e.g., a slot format indicator (SFI) included in DCI). The semi-statically configured slot format can be overridden by a dynamically indicated slot format. For example, the semi-statically configured flexible symbol can be overridden to a downlink symbol or an uplink symbol by the SFI.

[0096] The reference signal may be a channel state information-reference signal (CSI-RS), a sounding reference signal (SRS), a demodulation-reference signal (DM-RS), a phase tracking-reference signal (PT-RS), etc. The channel may be a physical broadcast channel (PBCH), a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), a physical sidelink control channel (PSCCH), a physical sidelink shared channel (PSSCH), etc. In the present disclosure, a control channel may mean a PDCCH, a PUCCH, or a PSCCH, and a data channel may mean a PDSCH, a PUSCH, or a PSSCH.

[0097] Figure 8 is a conceptual diagram illustrating embodiments of time-frequency resources in a communication system.

[0098] Referring to FIG. 8, a resource consisting of one symbol (e.g., an OFDM symbol) in the time domain and one subcarrier in the frequency domain may be defined as a "RE (resource element)". Resources consisting of one OFDM symbol in the time domain and K subcarriers in the frequency domain may be defined as a "REG (resource element group)". A REG may include K REs. A REG may be used as a basic unit for resource allocation in the frequency domain. K may be a natural number. For example, K may be 12. N may be a natural number. In the slot illustrated in FIG. 7, N may be 14. N OFDM symbols may be used as a basic unit for resource allocation in the time domain.

[0099] In the present disclosure, RB may mean CRB (common RB). Alternatively, RB may mean PRB or VRB (virtual RB). In a communication system, CRB may mean RB that constitutes a set of consecutive RBs (e.g., a common RB grid) based on a reference frequency (e.g., point A). Carriers and / or bandwidth portions may be arranged on the common RB grid. That is, the carrier and / or bandwidth portions may be composed of CRB(s). RBs or CRBs that constitute the bandwidth portions may be referred to as PRBs, and within the bandwidth portions, the CRB index may be appropriately converted to the PRB index.

[0100] Downlink data can be transmitted via the PDSCH. The base station can transmit PDSCH configuration information (e.g., scheduling information) to the terminal via the PDCCH. The terminal can obtain the PDSCH configuration information by receiving the PDCCH (e.g., downlink control information (DCI)). For example, the PDSCH configuration information can include the MCS (modulation coding scheme) used for transmitting and receiving the PDSCH, time resource information of the PDSCH, frequency resource information of the PDSCH, feedback resource information for the PDSCH, etc. The PDSCH can refer to a radio resource through which downlink data is transmitted and received. Alternatively, the PDSCH can refer to the downlink data itself. The PDCCH can refer to a radio resource through which downlink control information (e.g., DCI) is transmitted and received. Alternatively, the PDCCH can refer to the downlink control information itself.

[0101] A terminal can perform a monitoring operation on the PDCCH to receive a PDSCH transmitted from a base station. The base station can inform the terminal of the configuration information for the PDCCH monitoring operation using a higher layer message (e.g., an RRC (radio resource control) message). The configuration information for the PDCCH monitoring operation can include CORESET (control resource set) information and search space information.

[0102] CORESET information may include PDCCH DMRS (demodulation reference signal) information, PDCCH precoding information, PDCCH occasion information, etc. The PDCCH DMRS may be a DMRS used to demodulate the PDCCH. The PDCCH occasion may be a region where the PDCCH can exist. That is, the PDCCH occasion may be a region where DCI can be transmitted. The PDCCH occasion may be referred to as a PDCCH candidate. The PDCCH occasion information may include time resource information and frequency resource information of the PDCCH occasion. In the time domain, the length of the PDCCH occasion may be indicated in symbol units. In the frequency domain, the size of the PDCCH occasion may be indicated in RB units (e.g., in PRB (physical resource block) units or CRB (common resource block) units).

[0103] The search space information may include a coreset identifier (ID) associated with the search space, a period of PDCCH monitoring, and / or an offset. The period and offset of PDCCH monitoring may each be indicated on a slot-by-slot basis. In addition, the search space information may further include an index of the symbol at which the PDCCH monitoring operation begins.

[0104] A base station can configure a bandwidth part (BWP) for downlink communication. The BWP can be configured differently for each terminal. The base station can inform the terminal of the BWP configuration information using higher layer signaling. The higher layer signaling can mean "transmission operation of system information" and / or "transmission operation of RRC (radio resource control) message." The number of BWPs configured for one terminal can be one or more. The terminal can receive BWP configuration information from the base station and check the BWP(s) configured by the base station based on the BWP configuration information. When multiple BWPs are configured for downlink communication, the base station can activate one or more BWPs among the multiple BWPs. The base station can transmit the configuration information of the activated BWP(s) to the terminal using at least one of higher layer signaling, a medium access control (MAC) control element (CE), or DCI. The base station can perform downlink communication using the activated BWP(s). The terminal can identify the activated BWP(s) by receiving configuration information of the activated BWP(s) from the base station, and perform a downlink reception operation in the activated BWP(s).

[0105] Meanwhile, a communication system (e.g., NR communication system, 5G communication system, 6G communication system) may support usage scenarios such as enhanced Mobile BroadBand (eMBB), Ultra Reliable Low Latency Communication (URLLC), and massive Machine Type Communication (mMTC). A communication system (e.g., a communication network) may support transmission and reception point (TRP) technology (e.g., multiple TRP (mTRP) technology and / or single TRP (sTRP) technology). A communication system supporting the TRP technology may be referred to as a TRP system (e.g., mTRP system and / or sTRP system). In the present disclosure, TRP may have a meaning including sTRP and / or mTRP, and TRP may mean sTRP or mTRP depending on the context. TRP may mean an antenna set, an antenna group, and / or an antenna array. A TRP may be associated with a CORESET and / or a beam (e.g., a beam group).

[0106] mTRP technology may fall under the category of MIMO technology. mTRP may have characteristics (e.g., level characteristics) of macrocells, small cells, picocells, and / or femtocells. mTRP can perform data transmission for a single terminal. In a channel (e.g., a link) with uneven channel conditions due to obstacles and / or interference, mTRP can attenuate the effects of the obstacles and / or interference. mTRP can improve the data transmission rate for terminals located at cell edge areas.

[0107] mTRP-based communication can be performed using either coherent joint transmission (CJT) or non-CJT (NCJT) methods. In CJT, the base station can obtain channel information between each mTRP and the terminal and perform preprocessing on the data based on this channel information. In this case, the overhead associated with transmitting channel information may increase, and synchronization constraints between TRPs may arise. In NCJT, the base station may not need to know the channel information between each mTRP and the terminal. mTRPs can transmit data to the terminal without performing preprocessing operations such as phase compensation. The complexity of NCJT may be lower than that of CJT.

[0108] NCJT-based mTRP communication can be performed based on a single DCI scheme or a multiple DCI scheme. In the single DCI scheme, PDSCHs transmitted by an mTRP can be scheduled by a single DCI. A single DCI can be transmitted by one TRP among the mTRPs. In the multiple DCI scheme, the PDSCHs transmitted by each TRP can be scheduled by the DCI transmitted by each TRP. For example, a first PDSCH transmitted by a first TRP can be scheduled by a first DCI transmitted by the first TRP, and a second PDSCH transmitted by a second TRP can be scheduled by a second DCI transmitted by the second TRP. In other words, multiple PDSCHs can be scheduled using multiple DCIs.

[0109] In a single SCI scheme, a terminal can expect to receive PDSCHs transmitted by different TRPs over the same time and frequency resources and across different layers. Alternatively, the terminal can expect to receive PDSCHs transmitted by different TRPs over the same frequency resources and across the same layer but across different time resources (e.g., across different time domains). Alternatively, the terminal can expect to receive PDSCHs transmitted by different TRPs over the same time resources and across the same layer but across different frequency resources (e.g., across different frequency domains).

[0110] In a multi-DCI scheme, scheduling of PDSCHs for each TRP can be performed by a separate DCI. The PDSCHs scheduled by multiple DCIs may fully overlap or partially overlap. Alternatively, the PDSCHs scheduled by multiple DCIs may not overlap. In both single-DCI and multi-DCI schemes, the DCI may include transmission configuration indicator (TCI) status information for the PDSCH.

[0111] The indication / setting of the TCI state for the terminal can be interpreted as the indication / setting of a beam (e.g., a transmit beam and / or a receive beam). In other words, the TCI state can have a meaning corresponding to the beam. From the perspective of DL (downlink) communication, the setting of the TCI state can mean the setting of QCL (quasi co-location). From the perspective of UL (uplink) communication, the setting of the TCI state can mean the setting of a spatial filter. The unified TCI state can indicate (e.g., set) a common beam regardless of DL communication and UL communication. Alternatively, the unified TCI state can indicate (e.g., set) a common beam for each of DL communication and UL communication. The unified TCI can be referred to as UTCI.

[0112] Enhancements (e.g., PDCCH enhancements) may be implemented to improve the reliability and / or robustness of mTRP communications. Deployment scenarios for PDCCH enhancements can be categorized into single frequency network (SFN) and non-SFN scenarios.

[0113] In the SFN scheme, different TRPs or different panels can transmit the same PDCCH using the same resources (e.g., the same time resources, the same frequency resources, and / or the same spatial resources). In other words, all TRPs or all panels can transmit the same PDCCH using the same DMRS configuration, the same DMRS location, and / or the same DMRS sequence. At this time, the TCI states for the reception perspective of the TRPs or panels can be implicitly set differently. The above embodiment can be performed based on multiple TCI states of the CORESET. There may be synchronization constraints for ideal or near-ideal backhaul between TRPs.

[0114] In the NSFN scheme, the PDCCH generated from each TRP can be multiplexed in the time domain and / or frequency domain, and the multiplexed PDCCH can be transmitted to the terminal. The scheme may be an mTRP-based PDCCH repetition scheme. In the NSFN scheme, the same number of bits as the encoded bits transmitted through one PDCCH generated from each TRP can be divided for each TRP, and the bits (e.g., encoded bits) for each TRP can be transmitted through different PDCCH candidates. The scheme may be an sTRP-based PDCCH transmission scheme.

[0115] In the mTRP-based PDCCH repetition scheme, the PDCCH can be repeatedly generated as many times as the number of TRPs, and the PDCCH can be transmitted in the same search space (e.g., search spaces having the same index) within different search space sets having the same number of PDCCH candidates. At this time, the search space sets can exist within the same CORESET or different CORESETs. Since one TCI state can be associated with each CORESET, when the PDCCH is transmitted in different search spaces within the same CORESET, only one TCI state can be indicated (e.g., set) for the PDCCHs transmitted in the different search spaces. In this case, the UE can receive the PDCCH from one TRP at a specific time.

[0116] When a PDCCH is transmitted in the same search space within different CORESETs, the UE can implicitly expect to receive the PDCCH from either the sTRP or the mTRP, depending on the number of TCI states (e.g., TCI states indicated or configured by the base station). In this case, a single PDCCH can be split as many times as the number of TRPs, and the split PDCCHs can be transmitted on different PDCCH candidates. At this time, the aggregation level and the combined aggregation level can be the same. In the above embodiment, the PDCCH candidates can be assigned to different CORESETs. The payload size for the final distributed PDCCH combination can be the same as the payload size of the PDCCH transmitted in the sTRP. Therefore, in terms of decoding complexity, the sTRP-based PDCCH transmission scheme can be advantageous over the mTRP-based PDCCH repetition scheme.

[0117] A terminal can perform mTRP communication or sTRP communication with a base station. mTRP communication between the terminal and the base station can be performed through an mTRP associated with the base station. sTRP communication between the terminal and the base station can be performed through an sTRP associated with the base station. mTRP communication may be referred to as first TRP communication, and sTRP communication may be referred to as second TRP communication. Alternatively, mTRP communication may be referred to as second TRP communication, and sTRP communication may be referred to as first TRP communication. "The terminal performs first TRP communication with the base station" may mean "the terminal performs mTRP communication or sTRP communication with the base station through one or more TRPs associated with the base station." "The terminal performs second TRP communication with the base station" may mean "the terminal performs sTRP communication or mTRP communication with the base station through one or more TRPs associated with the base station."

[0118] In a communication system, integrated TCI can be supported. A base station can transmit information about a pool (e.g., a list) of TCI states to a terminal using RRC signaling. The terminal can receive information about a pool (e.g., a list) of TCI states through RRC signaling from the base station. The base station can set type information about the TCI state to the terminal. The type information can be a joint DL / UL beam indication or a separate DL / UL beam indication. A joint DL / UL beam indication can be referred to as a 'joint indication or joint type.' An independent DL / UL beam indication can be referred to as an 'independent indication or independent type.'

[0119] When a joint type (e.g., joint indication) is set, TCI states (e.g., one TCI state) for DL ​​and UL may be set. In other words, DL TCI state setting and UL TCI state setting may be the same. The UE may expect that the TCI state indicated by the information element included in the PDSCH configuration information applies to both DL (e.g., DL signal / channel) and UL (e.g., UL signal / channel). The signal / channel may refer to a signal and / or a channel. When an independent type (e.g., independent indication) is set, TCI states for DL ​​and UL may be set respectively. In other words, DL TCI state setting may be distinguished from UL TCI state setting. The UE may expect that the UL TCI state indicated by the information element included in the UL BWP configuration information applies to UL (e.g., UL signal / channel). The UL signal / channel may include a PUSCH, a PUCCH, and / or an SRS.

[0120] After the pool (e.g., pool list) for TCI states is configured (e.g., indicated) by RRC signaling, the base station can use DCI (e.g., DCI signaling) to indicate the TCI state (e.g., application of the TCI state). Due to the constraint of the DCI size (e.g., bits in the DCI field), the base station can preferentially activate candidate TCI state(s) using MAC signaling (e.g., MAC CE signaling). In other words, as many (e.g., maximum number) candidate TCI state(s) as can be indicated (e.g., configured) via DCI can be preferentially activated by MAC CE.

[0121] For the activated candidate TCI state(s), the DCI may contain code points corresponding to a single TCI state or two TCI states, depending on the TCI state type (e.g., joint type or independent type). If the joint type is set, the code points corresponding to a single TCI state may be conveyed by the DCI. If the independent type is set, the code points corresponding to two TCI states may be conveyed by the DCI.

[0122] Meanwhile, a unified TCI framework may be used for enhanced MIMO communication. Extension of the unified TCI framework for multiple DL and UL TCI status indications in multi-TRP communication may be supported. Up to two TRPs and up to two panels may be used in uplink communication, and uplink transmission based on simultaneous transmission across multiple panels (STxMP) may be required for higher UL throughput and / or reliability. STxMP-based uplink transmission may be referred to as STxMP UL transmission or STxMP UL communication. An improved method for single-DCI-based STxMP UL transmission and / or an improved method for multi-DCI-based STxMP UL transmission may be required.

[0123] PUCCH transmission can be performed based on a repetitive transmission scheme (e.g., a repetitive transmission scheme based on time division multiplexing (TDM)) or a STxMP SFN scheme. In the TDM-based repetitive transmission scheme and the STxMP SFN scheme, two TCI states can be configured for one PUCCH resource. PUSCH transmission can be performed based on a repetitive transmission scheme (e.g., a TDM-based repetitive transmission scheme), a STxMP SFN scheme, or a SDM (spatial division multiplexing) scheme. PUSCH transmission can be scheduled by a single DCI, or PUSCH transmission can be scheduled by multiple DCIs. Two SRS resource sets can be configured.

[0124] Alternatively, the mTRP TDM-based repetitive transmission scheme, the STxMP SFN scheme, and the SDM scheme may be supported for PUCCH transmission and / or PUSCH transmission. In this case, for PUSCH transmission, switching operations between SFN and sTRP, switching operations between SFN and mTRP, switching operations between SDM and TDM, and / or switching operations between SDM and sTRP may be supported. Among the above-described switching operations, some switching operations (e.g., switching operations between SFN and sTRP) may be performed based on an SRS resource set indicator included in the DCI.

[0125] PUCCH transmissions may overlap with PUSCH transmissions. Overlap may mean partial or full overlap. If a non-repeated PUCCH transmission (e.g., a non-repeated PUCCH transmission) overlaps with a PUSCH transmission in the time domain, the UE can perform only PUSCH transmission by multiplexing UCI onto the PUSCH (e.g., a PUSCH resource, a PUSCH transmission). In other words, the UE can drop the PUCCH transmission, and UCI can be transmitted over the PUSCH instead of the PUCCH. If a repeated PUCCH transmission overlaps with a PUSCH transmission in the time domain, the UE can perform only the PUCCH transmission and can drop the PUSCH transmission. Alternatively, the PUSCH transmission may be delayed. The priority of the repeated PUCCH transmission may be higher than that of the non-repeated PUCCH transmission.

[0126] The STxMP SFN scheme may be supported for PUCCH transmission and / or PUSCH transmission. In other words, the UE may perform PUCCH transmission and / or PUSCH transmission based on the STxMP SFN scheme. Both PUCCH transmission and PUSCH transmission may be performed based on the STxMP SFN scheme, and one of the PUCCH transmission and PUSCH transmission may be performed based on the STxMP SFN scheme, and the remaining transmissions (e.g., the remaining UL transmissions) may be performed based on another scheme (e.g., the sTRP communication scheme, the mTRP communication scheme, the TDM scheme, the mTRP TDM-based repeated transmission scheme, the SDM scheme, etc.). When the PUCCH transmission overlaps with the PUSCH transmission, the processing method of the UL transmission may vary depending on whether the STxMP SFN scheme is applied. When the PUCCH transmission and the PUSCH transmission overlap in the time domain, the UE may perform one UL transmission among the PUCCH transmission and the PUSCH transmission according to a predefined rule (e.g., a predefined priority). A predefined rule may mean that "repeated UL transmissions (e.g., PUCCH transmissions) have higher priority" and / or "STxMP SFN scheme has higher priority." One UL transmission may be performed preferentially, while other UL transmissions may be delayed or dropped.

[0127] The base station can instruct the terminal about the PUCCH transmission and / or PUSCH transmission method (e.g., sTRP communication method, mTRP communication method, TDM method, mTRP TDM-based repetitive transmission method, STxMP SFN method, SDM method, etc.) through signaling (e.g., higher layer signaling, MAC signaling, and / or PHY signaling). The terminal can check the PUCCH transmission and / or PUSCH transmission method indicated by the signaling of the base station. If the terminal has multiple panels (e.g., panel #1 and panel #2), the base station can instruct the terminal about the PUCCH transmission and / or PUSCH transmission method for each panel. The base station can instruct the terminal about whether to perform PUCCH repetitive transmission through signaling (e.g., higher layer signaling, MAC signaling, and / or PHY signaling). The terminal can check whether to perform PUCCH repetitive transmission based on the signaling of the base station. When a terminal has multiple panels (e.g., panel #1 and panel #2), the base station can instruct the terminal whether to perform PUCCH repetition transmission for each panel. In other words, the presence or absence of PUCCH repetition can be set for each panel of the terminal.

[0128] Figure 9 is a conceptual diagram illustrating embodiments of a UL transmission method.

[0129] Referring to FIG. 9, PUCCH transmission can be performed based on the STxMP SFN scheme, and PUSCH transmission can be performed based on a scheme other than the STxMP SFN scheme. In other words, the terminal can receive signaling from the base station for setting up (e.g., instruction, scheduling) PUCCH transmission based on the STxMP SFN scheme. The terminal can receive signaling from the base station for setting up (e.g., instruction, scheduling) PUSCH transmission based on another scheme. The other schemes can be an sTRP communication scheme, an mTRP communication scheme, a TDM scheme, an mTRP TDM-based repeated transmission scheme, an SDM scheme, etc. A PUCCH transmission that is not repeated in the time domain (e.g., a PUCCH transmission without repetition) can overlap with a PUSCH transmission. In this case, the terminal can perform only PUSCH transmission by multiplexing UCI on the PUSCH (e.g., a PUSCH resource, a PUSCH transmission). In other words, the terminal may drop the PUCCH transmission, and UCI may be transmitted via PUSCH instead of PUCCH. The base station may assume that the PUCCH transmission is being dropped and may expect to receive a PUSCH transmission containing UCI. In the above-described embodiment, since the non-repeated PUCCH transmission has a low priority, the non-repeated PUCCH transmission may be dropped.

[0130] The above-described UL transmission operation can be performed for each panel of the terminal. The terminal may have multiple panels (e.g., panel #1 and panel #2). Repeated PUCCH transmissions for panel #1 of the terminal may be configured, and repeated PUCCH transmissions and PUSCH transmissions for panel #1 may overlap in the time domain. PUCCH repeated transmission may be performed at a specific time (e.g., at a specific slot(s). In this case, the terminal may perform only PUCCH transmission and may drop PUSCH transmission. Or, the PUSCH transmission may be delayed. The base station may expect to receive the PUCCH transmission and may assume that the PUSCH transmission is dropped or delayed. The above-described operation may be performed at a specific time when the PUCCH repeated transmission is configured. The PUCCH repeated transmission for panel #2 of the terminal may not be configured. In other words, the terminal may perform PUCCH transmission without repetition through panel #2. In the case where the PUCCH transmission without repetition and the PUSCH transmission for panel #2 overlap in the time domain, the terminal may perform only PUSCH transmission by multiplexing UCI onto the PUSCH (e.g., PUSCH resource, PUSCH transmission). In other words, the terminal may drop the PUCCH transmission, and the UCI may be transmitted through the PUSCH instead of the PUCCH. The base station It can be assumed that PUCCH transmissions are dropped and it can be expected that PUSCH transmissions containing UCI are received.

[0131] The above-described operation may be applied differently at different times (e.g., different slot(s)). At different times (e.g., different slot(s)), PUCCH repeated transmissions for panel #1 of the terminal may not be configured, and PUCCH repeated transmissions for panel #2 of the terminal may be configured. If non-repeated PUCCH transmissions and PUSCH transmissions for panel #1 of the terminal overlap in the time domain, the terminal may perform only PUSCH transmissions by multiplexing UCI onto the PUSCH (e.g., PUSCH resources, PUSCH transmissions). In other words, the terminal may drop the PUCCH transmission, and UCI may be transmitted over the PUSCH instead of the PUCCH. The base station may assume that the PUCCH transmission is dropped and may expect to receive a PUSCH transmission including UCI. If repeated PUCCH and PUSCH transmissions for panel #2 of a terminal overlap in the time domain, the terminal may perform only PUCCH transmissions and drop PUSCH transmissions. Alternatively, PUSCH transmissions may be delayed. The base station may expect to receive PUCCH transmissions and may assume that PUSCH transmissions are dropped or delayed.

[0132] Alternatively, if PUCCH transmission is performed in the STxMP SFN mode and PUSCH transmission is performed in a mode other than the STxMP SFN mode, the UE may perform PUCCH transmission when the PUCCH transmission and PUSCH transmission overlap in the time domain, regardless of whether PUCCH transmission is repeated, to ensure priority of PUCCH transmission. In this case, the PUSCH transmission may be dropped. Alternatively, the PUSCH transmission may be delayed. The base station may expect to receive the PUCCH transmission and may assume that the PUSCH transmission is dropped or delayed.

[0133] Alternatively, the STxMP SFN scheme can have a higher priority. When a PUCCH transmission based on the STxMP SFN scheme overlaps with a PUSCH transmission based on another scheme in the time domain, the UE can perform the PUCCH transmission based on the STxMP SFN scheme with a higher priority regardless of whether the PUCCH transmission is repeated, and can drop or delay the PUSCH transmission. The base station can expect to receive the PUCCH transmission based on the STxMP SFN scheme and can assume that the PUSCH transmission is dropped or delayed.

[0134] If PUCCH transmission and PUSCH transmission do not overlap in the time domain, the transmission methods of PUCCH and PUSCH are different, and the time required for switching the transmission methods is greater than the time gap between PUCCH transmission and PUSCH transmission, the UE may select one UL transmission among PUCCH transmission and PUSCH transmission based on priority and perform the selected UL transmission. The remaining UL transmissions that are not selected may be dropped or delayed. If PUCCH transmission is selected, PUSCH transmission may be dropped or delayed. If PUSCH transmission is selected, UCI to be transmitted through PUCCH may be multiplexed on PUSCH (e.g., PUSCH resource, PUSCH transmission).

[0135] The priorities can be defined as follows. A repeated UL transmission may have a higher priority than a UL transmission without repetition. A UL transmission based on STxMP SFN may have a higher priority than a UL transmission based on other transmission methods. Among the UL transmissions, a UL transmission that is set first in the time domain (e.g., indicated or scheduled) may have a higher priority than other UL transmissions. The UE may first consider the priority of the UL transmission method of the UL transmissions among the priorities. If the priorities of the UL transmission methods of the UL transmissions are the same, the UE may consider the priority of the repeated transmission of the UL transmissions as the next priority. If the priorities of the repeated transmission of the UL transmissions are the same, the UE may consider the order in which the UL transmissions are set in the time domain (e.g., indicated order, scheduled order) as the next priority. The order in which the priorities are considered may not be limited to the above-described embodiment, and the order in which the priorities are considered may be set in various ways.

[0136] The embodiment of FIG. 9 stipulates an UL transmission method in the case where a PUCCH transmission and a PUSCH transmission collide in the time domain, and the UL transmission method can be applied in the case where a first PUCCH transmission and a second PUCCH transmission collide in the time domain and / or in the case where a first PUSCH transmission and a second PUSCH transmission collide in the time domain. For example, in the embodiment of FIG. 9 , a PUCCH transmission can be interpreted as a first PUCCH transmission, and in the embodiment of FIG. 9 , a PUSCH transmission can be interpreted as a second PUCCH transmission. For another example, in the embodiment of FIG. 9 , a PUCCH transmission can be interpreted as a first PUSCH transmission, and in the embodiment of FIG. 9 , a PUSCH transmission can be interpreted as a second PUSCH transmission.

[0137] Figure 10 is a conceptual diagram illustrating embodiments of a UL transmission method.

[0138] Referring to FIG. 10, PUCCH transmission and PUSCH transmission can be performed based on the STxMP SFN scheme. In other words, the terminal can receive signaling from the base station regarding the configuration (e.g., indication, scheduling) of PUCCH transmission based on the STxMP SFN scheme. The terminal can receive signaling from the base station regarding the configuration (e.g., indication, scheduling) of PUSCH transmission based on the STxMP SFN scheme. PUCCH transmissions that are not repeated in the time domain (e.g., non-repetitive PUCCH transmissions) can overlap with PUSCH transmissions. In this case, the terminal can perform only PUSCH transmissions by multiplexing UCI onto the PUSCH (e.g., PUSCH resources, PUSCH transmissions). In other words, the terminal can drop the PUCCH transmission, and the UCI can be transmitted via the PUSCH instead of the PUCCH. The base station can assume that the PUCCH transmission is dropped and can expect to receive a PUSCH transmission that includes UCI. For another example, repeated PUCCH transmissions in the time domain may overlap with PUSCH transmissions. In this case, the UE may perform only PUCCH transmissions and drop PUSCH transmissions. Alternatively, the PUSCH transmissions may be delayed. The base station may expect to receive PUCCH transmissions and may assume that the PUSCH transmissions are dropped or delayed. Repeated PUCCH transmissions may have a higher priority.

[0139] The above-described UL transmission operation can be performed for each panel of the terminal. The terminal can have multiple panels (e.g., panel #1 and panel #2). PUCCH repetition transmission for panel #1 of the terminal may not be configured. In other words, the terminal can perform PUCCH transmission without repetition through panel #1. The PUCCH transmission without repetition can be configured at a specific time (e.g., specific slot(s)). If the PUCCH transmission without repetition and the PUSCH transmission for panel #1 overlap in the time domain, the terminal can perform only the PUSCH transmission by multiplexing the UCI onto the PUSCH (e.g., PUSCH resource, PUSCH transmission). In other words, the terminal can drop the PUCCH transmission, and the UCI can be transmitted through the PUSCH instead of the PUCCH. The base station can assume that the PUCCH transmission is dropped and can expect to receive the PUSCH transmission including the UCI. The above-described operation can be performed at a specific time when non-repetitive PUCCH transmission is configured. PUCCH repetitive transmission for panel #2 of the terminal may or may not be configured. Even when PUCCH repetitive transmission for panels #1 and #2 is not configured under certain conditions, diversity for PUCCH can be secured because PUSCH transmission is performed in the STxMP SFN manner.

[0140] The above-described operation may be applied differently at different times (e.g., different slot(s)). At different times (e.g., different slot(s)), PUCCH repetition transmission for panel #1 of the terminal may or may not be configured, and PUCCH repetition transmission for panel #2 of the terminal may not be configured.

[0141] Alternatively, when PUCCH and PUSCH transmissions are performed in the STxMP SFN mode, the UE may perform PUCCH transmission when PUCCH and PUSCH transmissions overlap in the time domain, regardless of whether PUCCH transmissions are repeated, to ensure priority of PUCCH transmission. In this case, PUSCH transmissions may be dropped or delayed. The base station may expect to receive PUCCH transmissions and may assume that PUSCH transmissions are dropped or delayed.

[0142] In the embodiment of FIG. 10, when repetition of PUCCH transmission is set and repetition of PUSCH transmission is set (for example, when the priority of repeated transmission for PUCCH transmission and PUSCH transmission is the same), the terminal can determine the priority of UL transmission based on the setting order (for example, the instruction order, the scheduling order) of PUCCH transmission and PUSCH transmission in the time domain. For example, when PUCCH transmission precedes PUSCH transmission in the time domain, the terminal can perform PUCCH transmission and drop or delay PUSCH transmission. As another example, when PUSCH transmission precedes PUCCH transmission in the time domain, the terminal can perform PUSCH transmission by multiplexing UCI onto PUSCH (for example, PUSCH resource, PUSCH transmission) and drop PUCCH transmission.

[0143] The embodiment of FIG. 10 stipulates an UL transmission method in the case where a PUCCH transmission and a PUSCH transmission collide in the time domain, and the UL transmission method can be applied in the case where a first PUCCH transmission and a second PUCCH transmission collide in the time domain and / or in the case where a first PUSCH transmission and a second PUSCH transmission collide in the time domain. For example, in the embodiment of FIG. 10 , a PUCCH transmission can be interpreted as a first PUCCH transmission, and in the embodiment of FIG. 10 , a PUSCH transmission can be interpreted as a second PUCCH transmission. For another example, in the embodiment of FIG. 10 , a PUCCH transmission can be interpreted as a first PUSCH transmission, and in the embodiment of FIG. 10 , a PUSCH transmission can be interpreted as a second PUSCH transmission.

[0144] Figure 11 is a conceptual diagram illustrating embodiments of a UL transmission method.

[0145] Referring to FIG. 11, PUSCH transmission can be performed based on the STxMP SFN scheme, and PUCCH transmission can be performed based on a scheme other than the STxMP SFN scheme. The terminal can receive signaling from the base station for configuring PUCCH transmission (e.g., instruction, scheduling) based on the other scheme. The terminal can receive signaling from the base station for configuring PUSCH transmission (e.g., instruction, scheduling) based on the STxMP SFN scheme. The other scheme may be an sTRP communication scheme, an mTRP communication scheme, a TDM scheme, an mTRP TDM-based repeated transmission scheme, an SDM scheme, etc. A PUCCH transmission that is not repeated in the time domain (e.g., a PUCCH transmission without repetition) can overlap with a PUSCH transmission. In this case, the terminal can perform only PUSCH transmission by multiplexing UCI on the PUSCH (e.g., a PUSCH resource, a PUSCH transmission). In other words, the UE may drop the PUCCH transmission, and UCI may be transmitted via the PUSCH instead of the PUCCH. The base station may assume that the PUCCH transmission is being dropped and may expect to receive a PUSCH transmission containing UCI. For another example, repeated PUCCH transmissions in the time domain may overlap with PUSCH transmissions. In this case, the UE may perform only the PUCCH transmission and may drop the PUSCH transmission. Alternatively, the PUSCH transmission may be delayed. The base station may expect to receive the PUCCH transmission and may assume that the PUSCH transmission is being dropped or delayed.

[0146] The above-described UL transmission operation can be performed for each panel of the terminal. The terminal can have multiple panels (e.g., panel #1 and panel #2). PUCCH repetition transmission for panel #1 of the terminal may not be configured. In other words, the terminal can perform PUCCH transmission without repetition through panel #1. The PUCCH transmission without repetition can be configured at a specific time (e.g., specific slot(s)). If the PUCCH transmission without repetition and the PUSCH transmission for panel #1 overlap in the time domain, the terminal can perform only the PUSCH transmission by multiplexing the UCI onto the PUSCH (e.g., PUSCH resource, PUSCH transmission). In other words, the terminal can drop the PUCCH transmission, and the UCI can be transmitted through the PUSCH instead of the PUCCH. The base station can assume that the PUCCH transmission is dropped and can expect to receive the PUSCH transmission including the UCI. The above-described operation can be performed at a specific time when non-repetitive PUCCH transmission is configured. Repeated PUCCH transmissions for panel #2 of the terminal can be configured. If repeated PUCCH transmissions and PUSCH transmissions for panel #2 overlap in the time domain, the terminal can perform only PUCCH transmissions and drop PUSCH transmissions. Alternatively, PUSCH transmissions can be delayed. The base station can expect to receive PUCCH transmissions and can assume that PUSCH transmissions are dropped or delayed.

[0147] Alternatively, if the PUCCH transmission is performed in a manner other than the STxMP SFN manner and the PUSCH transmission is performed in the STxMP SFN manner, in order to secure the priority of the PUCCH transmission, the UE may perform the PUCCH transmission when the PUCCH transmission and the PUSCH transmission overlap in the time domain, regardless of whether the STxMP SFN manner is performed and / or whether the PUCCH is repeatedly transmitted. In this case, the PUSCH transmission may be dropped. Alternatively, the PUSCH transmission may be delayed. The base station may expect to receive the PUCCH transmission and may assume that the PUSCH transmission is dropped or delayed.

[0148] Alternatively, the STxMP SFN scheme can have a higher priority. When a PUCCH transmission based on another scheme overlaps with a PUSCH transmission based on the STxMP SFN scheme in the time domain, the UE can perform the PUSCH transmission based on the STxMP SFN scheme with a higher priority and drop the PUCCH transmission regardless of whether the PUCCH transmission is repeated. The base station can expect to receive the PUSCH transmission based on the STxMP SFN scheme and can assume that the PUCCH transmission is dropped or delayed. UCI to be transmitted on the PUCCH can be multiplexed onto the PUSCH (e.g., PUSCH resources, PUSCH transmission).

[0149] If PUCCH transmission and PUSCH transmission do not overlap in the time domain, the transmission methods of PUCCH and PUSCH are different, and the time required for switching the transmission methods is greater than the time gap between PUCCH transmission and PUSCH transmission, the UE may select one UL transmission among PUCCH transmission and PUSCH transmission based on priority and perform the selected UL transmission. The remaining UL transmissions that are not selected may be dropped or delayed. If PUCCH transmission is selected, PUSCH transmission may be dropped or delayed. If PUSCH transmission is selected, UCI to be transmitted through PUCCH may be multiplexed on PUSCH (e.g., PUSCH resources, PUSCH transmission).

[0150] The priorities can be defined as follows. A repeated UL transmission may have a higher priority than a UL transmission without repetition. A UL transmission based on STxMP SFN may have a higher priority than a UL transmission based on other transmission methods. Among the UL transmissions, a UL transmission that is set first in the time domain (e.g., indicated or scheduled) may have a higher priority than other UL transmissions. The UE may first consider the priority of the UL transmission method of the UL transmissions among the priorities. If the priorities of the UL transmission methods of the UL transmissions are the same, the UE may consider the priority of the repeated transmission of the UL transmissions as the next priority. If the priorities of the repeated transmission of the UL transmissions are the same, the UE may consider the order in which the UL transmissions are set in the time domain (e.g., indicated order, scheduled order) as the next priority. The order in which the priorities are considered may not be limited to the above-described embodiment, and the order in which the priorities are considered may be set in various ways.

[0151] The embodiment of FIG. 11 stipulates a UL transmission method in the case where a PUCCH transmission and a PUSCH transmission collide in the time domain, and the UL transmission method can be applied in the case where a first PUCCH transmission and a second PUCCH transmission collide in the time domain and / or in the case where a first PUSCH transmission and a second PUSCH transmission collide in the time domain. For example, in the embodiment of FIG. 11 , a PUCCH transmission can be interpreted as a first PUCCH transmission, and in the embodiment of FIG. 11 , a PUSCH transmission can be interpreted as a second PUCCH transmission. For another example, in the embodiment of FIG. 11 , a PUCCH transmission can be interpreted as a first PUSCH transmission, and in the embodiment of FIG. 11 , a PUSCH transmission can be interpreted as a second PUSCH transmission.

[0152] In the embodiments described above, the overlap between PUCCH transmission and PUSCH transmission in the time domain may mean partial or full overlap within the same slot or a specific time. Two SRS resource sets may be configured for a single DCI-based SDM scheme or a single DCI-based SFN scheme. The DCI (e.g., DCI format 0_1, DCI format 0_2) may include an SRS resource set indicator, a second SRI (SRS resource indicator) field, and a TPMI (transmit precoding matrix indicator) field. The embodiments described above may be applied to CB (codebook)-based UL transmission and / or NCB (non-codebook)-based UL transmission.

[0153] The operations of the method according to the present disclosure can be implemented as a computer-readable program or code on a computer-readable recording medium. A computer-readable recording medium includes any type of recording device that stores information readable by a computer system. Furthermore, a computer-readable recording medium can be distributed across network-connected computer systems, allowing the computer-readable program or code to be stored and executed in a distributed manner.

[0154] Additionally, the computer-readable recording medium may include hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, etc. The program instructions may include not only machine language codes produced by a compiler, but also high-level language codes that can be executed by a computer using an interpreter, etc.

[0155] While some aspects of the present disclosure have been described in the context of a device, they may also represent a description of a corresponding method, wherein a block or device corresponds to a method step or a feature of a method step. Similarly, aspects described in the context of a method may also be described as a corresponding block or item or a feature of a corresponding device. Some or all of the method steps may be performed by (or using) a hardware device, such as, for example, a microprocessor, a programmable computer, or an electronic circuit. In some embodiments, at least one or more of the most significant method steps may be performed by such a device.

[0156] A programmable logic device (e.g., a field-programmable gate array) may be used to perform some or all of the functions of the methods described in the present disclosure. The field-programmable gate array may operate in conjunction with a microprocessor to perform one of the methods described in the present disclosure. In general, the methods are preferably performed by some hardware device.

[0157] Although the present disclosure has been described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various modifications and changes may be made to the present disclosure without departing from the spirit and scope of the present disclosure as set forth in the claims below.

Claims

1. As a method of UE (user equipment), A step of receiving, from a base station, a setting for a first PUCCH (physical uplink control channel) transmission based on a STxMP (simultaneous transmission across multiple panels) SFN (single frequency network) method; A step of receiving from the base station a setting for a first PUSCH (physical uplink shared channel) transmission based on a method other than the STxMP SFN method; and In the time domain, when the first PUCCH transmission and the first PUSCH transmission overlap, a step of performing one UL (uplink) transmission based on a predefined rule is included. UE's method.

2. In claim 1, The step of performing the above one UL transmission is: If repetition for the first PUCCH transmission is set, a step of performing the first PUCCH transmission is included. The above first PUSCH transmission is dropped or delayed, UE's method.

3. In claim 1, The step of performing the above one UL transmission is: If repetition for the first PUCCH transmission is not set, a step of performing the first PUSCH transmission is included. UCI (uplink control information) is multiplexed in the first PUSCH transmission. UE's method.

4. In claim 1, The step of performing the above one UL transmission is: A step of performing the first PUCCH transmission, regardless of whether repetition for the first PUCCH transmission is set, The above first PUSCH transmission is dropped or delayed, UE's method.

5. In claim 1, Further comprising the step of receiving a setting of repetition for the first PUCCH transmission from the base station, UE's method.

6. In claim 5, If the above UE includes multiple panels, whether or not to set repetition for PUCCH transmission is set for each panel of the UE. UE's method.

7. In claim 1, The UE includes a first panel and a second panel, the first PUCCH transmission and the second PUSCH transmission are set for the first panel, the second PUCCH transmission and the second PUSCH transmission are set for the second panel, and the configuration of UL transmission per panel is independent. UE's method.

8. In claim 1, The above other methods are TDM (time division multiplexing) based repetitive transmission methods or SDM (spatial division multiplexing) methods. UE's method.

9. As a method of UE (user equipment), A step of receiving from a base station a configuration for a first PUCCH (physical uplink control channel) transmission based on a method other than the STxMP (simultaneous transmission across multiple panels) SFN (single frequency network) method; A step of receiving a setting for a first PUSCH (physical uplink shared channel) transmission based on the STxMP SFN method from the base station; and In the time domain, when the first PUCCH transmission and the first PUSCH transmission overlap, a step of performing one UL (uplink) transmission based on a predefined rule is included. UE's method.

10. In claim 9, The step of performing the above one UL transmission is: If repetition for the first PUCCH transmission is set, a step of performing the first PUCCH transmission is included. The above first PUSCH transmission is dropped or delayed, UE's method.

11. In claim 9, The step of performing the above one UL transmission is: If repetition for the first PUCCH transmission is not set, a step of performing the first PUSCH transmission is included. UCI (uplink control information) is multiplexed in the first PUSCH transmission. UE's method.

12. In claim 9, The step of performing the above one UL transmission is: A step of performing the first PUCCH transmission, regardless of whether repetition for the first PUCCH transmission is set, The above first PUSCH transmission is dropped or delayed, UE's method.

13. In claim 9, Further comprising the step of receiving a setting of repetition for the first PUCCH transmission from the base station, UE's method.

14. In claim 13, If the above UE includes multiple panels, whether or not to set repetition for PUCCH transmission is set for each panel of the UE. UE's method.

15. In claim 9, The UE includes a first panel and a second panel, the first PUCCH transmission and the second PUSCH transmission are set for the first panel, the second PUCCH transmission and the second PUSCH transmission are set for the second panel, and the configuration of UL transmission per panel is independent. UE's method.

16. In claim 9, The above other methods are TDM (time division multiplexing) based repetitive transmission methods or SDM (spatial division multiplexing) methods. UE's method.

17. As a method of UE (user equipment), A step of receiving, from a base station, a setting for a first PUCCH (physical uplink control channel) transmission based on a STxMP (simultaneous transmission across multiple panels) SFN (single frequency network) method; A step of receiving a setting for a first PUSCH (physical uplink shared channel) transmission based on the STxMP SFN method from the base station; and In the time domain, when the first PUCCH transmission and the first PUSCH transmission overlap, a step of performing one UL (uplink) transmission based on a predefined rule is included. UE's method.

18. In claim 17, The step of performing the above one UL transmission is: If repetition for the first PUCCH transmission is set, a step of performing the first PUCCH transmission is included. The above first PUSCH transmission is dropped or delayed, UE's method.

19. In claim 17, The step of performing the above one UL transmission is: If repetition for the first PUCCH transmission is not set, a step of performing the first PUSCH transmission is included. UCI (uplink control information) is multiplexed in the first PUSCH transmission. UE's method.

20. In claim 17, The step of performing the above one UL transmission is: A step of performing the first PUCCH transmission, regardless of whether repetition for the first PUCCH transmission is set, The above first PUSCH transmission is dropped or delayed, UE's method.

Images