Method and apparatus for transmitting uplink control information for non-terrestrial network in wireless communication system

Abstract

The objective of the present disclosure is to transmit uplink control information (UCI) for a non-terrestrial network (NTN) in a wireless communication system. This operation method of a terminal may comprise: receiving configuration information for applying an orthogonal cover code (OCC) in an uplink (UL); receiving downlink control information (DCI) including a UL grant; generating UL data and uplink control information (UCI); applying the OCC to signals included in a plurality of slots including symbols including the UL data; and transmitting the signals.

Description

Method and apparatus for transmitting uplink control information for a non-terrestrial network in a wireless communication system

[0001] The present disclosure relates to a non-terrestrial network (NTN) in a wireless communication system, and more specifically, to a method and apparatus for transmitting uplink control information (UCI) for an NTN.

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

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

[0004] 6G communication networks can support a wider variety of communication services and scenarios compared to 5G communication networks. 6G communication networks can meet the requirements for ultra-high performance, ultra-bandwidth, ultra-spatial, ultra-precision, ultra-intelligence, and / or ultra-reliability. 6G communication networks can support a wide range of frequency bands and can be applied to various usage scenarios (e.g., terrestrial communication, non-terrestrial communication, sidelink communication, etc.).

[0005] Communication networks (e.g., 5G communication networks, 6G communication networks, etc.) can provide communication services to terminals located on the ground. There is an increasing demand for communication services for aircraft, drones, satellites, and other non-terrestrial entities as well as those located on the ground, and to meet this demand, technologies for non-terrestrial networks (NTNs) are being discussed. NTNs can be implemented based on 5G communication technologies, 6G communication technologies, etc. For example, in an NTN, communication between a satellite and a communication node located on the ground or a communication node located non-terrestrial (e.g., an aircraft, a drone, etc.) can be performed based on 5G communication technologies, 6G communication technologies, etc. In an NTN, a satellite can perform the function of a base station in a communication network (e.g., 5G communication networks, 6G communication networks, etc.).

[0006] Meanwhile, the technology forming the background of the invention is written to enhance understanding of the background of the invention and may include content that is not prior art already known to a person with ordinary knowledge in the field to which this technology belongs.

[0007] The present disclosure may provide a method and apparatus for effectively transmitting uplink control information (UCI) in a wireless communication system supporting a non-terrestrial network (NTN).

[0008] The present disclosure may provide a method and apparatus for multiplexing a PUSCH (physical uplink shared channel) and a UCI in a wireless communication system.

[0009] The present disclosure may provide a method and apparatus for multiplexing PUSCH and UCI that are repeatedly transmitted in a wireless communication system.

[0010] The present disclosure may provide a method and apparatus for multiplexing uplink data and UCI to which an orthogonal covering code (OCC) is applied and which is repeatedly transmitted in a wireless communication system.

[0011] The technical objectives to be achieved in this disclosure are not limited to those mentioned above, and other unmentioned technical problems may be considered by those skilled in the art to which the technical configuration of this disclosure applies, based on the embodiments of this disclosure described below.

[0012] According to one embodiment of the present disclosure, a method of operation of a terminal in a wireless communication system comprises receiving configuration information for applying an orthogonal cover code (OCC) in an uplink (UL), receiving downlink control information (DCI) including a UL grant, generating UL data and uplink control information (UCI), applying the OCC to signals included in a plurality of slots including symbols including the UL data, and transmitting the signals, wherein at least one of the plurality of slots may be used to transmit a signal including the UCI.

[0013] According to one embodiment of the present disclosure, a method of operation of a base station in a wireless communication system comprises transmitting configuration information for applying an orthogonal cover code (OCC) in an uplink (UL), transmitting downlink control information (DCI) including a UL grant, and receiving UL data and uplink control information (UCI) through a plurality of slots based on the OCC, wherein at least one of the plurality of slots may be used to transmit a signal including the UCI.

[0014] According to one embodiment of the present disclosure, a terminal in a wireless communication system comprises at least one transceiver, at least one processor, and at least one memory connected to the at least one processor to be operable and storing instructions that control the terminal to perform operations when executed by the processor, wherein the operations include receiving configuration information for applying an orthogonal cover code (OCC) in an uplink (UL), receiving downlink control information (DCI) including a UL grant, generating UL data and uplink control information (UCI), applying the OCC to signals included in a plurality of slots including symbols including the UL data, and transmitting the signals, wherein at least one of the plurality of slots may be used to transmit a signal including the UCI.

[0015] According to one embodiment of the present disclosure, a non-terrestrial network (NTN) base station in a wireless communication system comprises at least one transceiver, at least one processor, and at least one memory connected to the at least one processor to be operable and storing instructions that control the terminal to perform operations when executed by the processor, wherein the operations include transmitting configuration information for applying an orthogonal cover code (OCC) in an uplink (UL), transmitting downlink control information (DCI) including a UL grant, and receiving UL data and uplink control information (UCI) through a plurality of slots based on the OCC, wherein at least one of the plurality of slots may be used to transmit a signal including the UCI.

[0016] The proposed technology enables the effective multiplexing of uplink data and uplink control information (UCI) with orthogonal covering code (OCC) applied in a wireless communication system.

[0017] The effects obtainable from the embodiments of the present disclosure are not limited to those mentioned above, and other unmentioned effects can be clearly derived and understood by a person skilled in the art to which the technical configuration of the present disclosure applies from the description of the embodiments of the present disclosure below. That is, unintended effects resulting from implementing the configuration described in the present disclosure can also be derived by a person skilled in the art from the embodiments of the present disclosure.

[0018] FIGS. 1a and 1b illustrate the structure of a transparent-based non-terrestrial network (NTN) according to an embodiment of the present disclosure.

[0019] FIGS. 2a to 2c illustrate the structure of a regenerative-based NTN according to an embodiment of the present disclosure.

[0020] FIG. 3 illustrates a block diagram of a communication node constituting an NTN according to an embodiment of the present disclosure.

[0021] FIG. 4 illustrates a block diagram of a communication node according to an embodiment of the present disclosure.

[0022] FIGS. 5A and 5B illustrate block diagrams of a transmission path and a reception path of a communication node according to an embodiment of the present disclosure.

[0023] FIG. 6 illustrates an example of a system frame in a wireless communication system according to an embodiment of the present disclosure.

[0024] FIG. 7 illustrates an example of a subframe in a wireless communication system according to an embodiment of the present disclosure.

[0025] FIG. 8 illustrates an example of a slot in a wireless communication system according to an embodiment of the present disclosure.

[0026] FIG. 9 illustrates the timing relationship between the uplink and downlink in a wireless communication system according to an embodiment of the present disclosure.

[0027] FIGS. 10a and FIG. 10b illustrate examples of protocol stacks of the user plane and control plane in a transparent payload-based NTN in a wireless communication system according to an embodiment of the present disclosure.

[0028] FIGS. 11a and 11b illustrate examples of protocol stacks of the user plane and the control plane in a regenerated payload-based NTN in a wireless communication system according to an embodiment of the present disclosure.

[0029] FIG. 12 illustrates an example of an NTN that provides non-terrestrial NR access to a UE through an NTN payload and an NTN gateway.

[0030] Figure 13 illustrates the timing relationship between objects included in NTN.

[0031] FIGS. 14a to 14i illustrate an example in which a UCI is mapped from a PUSCH resource in a wireless communication system according to one embodiment of the present disclosure.

[0032] FIG. 15 illustrates an example of a procedure for transmitting UL data and UCI in a wireless communication system according to one embodiment of the present disclosure.

[0033] FIG. 16 illustrates an example of a procedure for receiving UL data and UCI in a wireless communication system according to one embodiment of the present disclosure.

[0034] FIG. 17 illustrates an example of a procedure for transmitting a UCI in a portion of slots in which UL data is repeated in a wireless communication system according to one embodiment of the present disclosure.

[0035] FIGS. 18a and FIG. 18b illustrate an example in which a slot-to-slot OCC is applied to a PUSCH including a UCI in a wireless communication system according to one embodiment of the present disclosure.

[0036] FIG. 19 illustrates an example of a procedure for determining a slot for transmitting UCI that is multiplexed with UL data to which OCC is applied in a wireless communication system according to one embodiment of the present disclosure.

[0037] FIG. 20 illustrates an example of a procedure for performing power boosting on UL data to which OCC is applied in a wireless communication system according to one embodiment of the present disclosure.

[0038] FIGS. 21a and FIG. 21b illustrate an example in which slot-to-slot OCC and power boosting are applied to a PUSCH including a UCI in a wireless communication system according to one embodiment of the present disclosure.

[0039] The present disclosure is capable of various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail. However, this is not intended to limit the present disclosure to specific embodiments and should be understood to include all modifications, equivalents, and substitutions that fall within the spirit and scope of the present disclosure.

[0040] Terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. Such terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present disclosure, the first component may be named the second component, and similarly, the second component may be named the first component. The term "and / or" may mean a combination of a plurality of related described items or any of a plurality of related described items.

[0041] 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 one or more combinations 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 one or more combinations of A and B".

[0042] 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".

[0043] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0044] The terms used in this disclosure are used merely to describe specific embodiments and are not intended to limit this disclosure. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this disclosure, terms such as “comprising” or “having” are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0045] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which this disclosure pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this disclosure.

[0046] Hereinafter, preferred embodiments of the present disclosure will be described in more detail with reference to the attached drawings. To facilitate overall understanding in describing the present disclosure, the same reference numerals are used for identical components in the drawings, and redundant descriptions of identical components are omitted. Operations according to combinations of embodiments, extensions of embodiments, and / or modifications of embodiments may be performed, as well as the embodiments explicitly described in the present disclosure. The performance of some operations may be omitted, and the order of operations may be changed.

[0047] In the embodiments, even when a method performed at a first communication node among the communication nodes (e.g., transmission or reception of a signal) is described, the corresponding second communication node may perform a method corresponding to the method performed at the first communication node (e.g., reception or transmission of a signal). That is, when the operation of a UE (user equipment) is described, the corresponding base station may perform an operation corresponding to the operation of the UE. Conversely, when the operation of a base station is described, the corresponding UE may perform an operation corresponding to the operation of the base station.

[0048] A base station may be referred to as Node B, evolved Node B, gNode B (next generation node B), gNB, device, apparatus, node, communication node, BTS (base transceiver station), RRH (radio remote head), TRP (transmission reception point), RU (radio unit), RSU (road side unit), radio transceiver, access point, access node, etc. A UE may be referred to as terminal, device, apparatus, node, communication node, end node, access terminal, mobile terminal, station, subscriber station, mobile station, portable subscriber station, OBU (on-broad unit), etc.

[0049] 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 the transmission and reception operations of system information (e.g., MIB (master information block), SIB (system information block)) and / or RRC messages. MAC signaling may refer to the transmission and reception operations of MAC CE (control element). PHY signaling may refer to the transmission and reception operations of control information (e.g., DCI (downlink control information), UCI (uplink control information), SCI (sidelink control information)).

[0050] In the present disclosure, "setting an operation (e.g., transmission operation)" may mean that "setting information for said operation (e.g., information element, parameter)" and / or "information directing the performance of said operation" is signaled. "Setting an information element (e.g., parameter)" may mean that said information element is signaled. In the present disclosure, "signal and / or channel" may mean signal, channel, or "signal and channel," and signal may be used to mean "signal and / or channel."

[0051] The communication system may include at least one of a terrestrial network, an NTN, a 4G communication network (e.g., an LTE (long-term evolution) communication network), a 5G communication network (e.g., an NR (new radio) communication network), or a 6G communication network. Each of the 4G communication network, the 5G communication network, and the 6G communication network may include a terrestrial network and / or an NTN. The NTN may be operated based on at least one communication technology among LTE communication technology, 5G communication technology, or 6G communication technology. The NTN may provide communication services in various frequency bands.

[0052] The communication networks to which the embodiments of the present disclosure are applied are not limited to those described below, and the embodiments may be applied to various communication networks (e.g., 4G communication networks, 5G communication networks, and / or 6G communication networks). Here, the term "communication network" may be used interchangeably with "communication system."

[0053] FIGS. 1a and 1b illustrate the structure of a transparent-based non-terrestrial network (NTN) according to an embodiment of the present disclosure.

[0054] Referring to FIG. 1a, the NTN may include a satellite (110), a communication node (120), a gateway (130), a data network (140), etc. A unit including the satellite (110) and the gateway (130) may be referred to as a remote radio unit (RRU). The satellite (110) may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, or an unmanned aircraft system (UAS) platform. A UAS platform may include a high altitude platform station (HAPS). A non-GEO satellite may be a LEO satellite and / or an MEO satellite.

[0055] The communication node (120) may include a communication node located on the ground (e.g., UE, terminal) and a communication node located off the ground (e.g., airplane, drone). A service link may be established between the satellite (110) and the communication node (120), and the service link may be a radio link. The satellite (110) may be referred to as an NTN payload. The gateway (130) may support multiple NTN payloads. The satellite (110) may provide communication services to the communication node (120) using one or more beams. The shape of the receiving range (footprint) of the satellite (110) beam may be elliptical or circular.

[0056] In NTN, three types of service links can be supported as follows.

[0057] - Earth-fixed: Service links can be provided by beam(s) that always continuously cover the same geographic area (e.g., GSO (Geosynchronous Orbit) satellites)

[0058] - Quasi-earth-fixed: Service links may be provided by beam(s) that cover one geographic area for a limited period and another geographic area for a different period (e.g., NGSO (non-GSO) satellites generating steerable beams).

[0059] - Earth-moving: Service links may be provided by beam(s) moving across the Earth's surface (e.g., NGSO satellites generating fixed beams or non-steeringable beams)

[0060] A communication node (120) can communicate with a satellite (110) (e.g., downlink communication, uplink communication) using 4G communication technology, 5G communication technology, and / or 6G communication technology. Communication between the satellite (110) and the communication node (120) can be performed using an NR-Uu interface and / or a 6G-Uu interface. If dual connectivity (DC) is supported, the communication node (120) can be connected to the satellite (110) as well as other base stations (e.g., base stations supporting 4G functions, 5G functions, and / or 6G functions), and can perform DC operations based on the technology defined in the 4G specifications, 5G specifications, and / or 6G specifications.

[0061] The gateway (130) may be located on the ground, and a feeder link may be established between the satellite (110) and the gateway (130). The feeder link may be a wireless link. The gateway (130) may be referred to as an 'NTN gateway'. Communication between the satellite (110) and the gateway (130) may be performed based on an NR-Uu interface, a 6G-Uu interface, or a satellite radio interface (SRI). The gateway (130) may be connected to a data network (140). A "core network" may exist between the gateway (130) and the data network (140). In this case, the gateway (130) may be connected to the core network, and the core network may be connected to the data network (140). The core network may support 4G communication technology, 5G communication technology, and / or 6G communication technology. For example, the core network may include an access and mobility management function (AMF), a user plane function (UPF), a session management function (SMF), etc. Communication between the gateway (130) and the core network may be performed based on an NG-C / U interface or a 6G-C / U interface.

[0062] As shown in FIG. 1b, in a transparent payload-based NTN, a base station and a core network may exist between the gateway (130) and the data network (140).

[0063] Referring to FIG. 1b, the gateway can be connected to a base station, the base station can be connected to a core network, and the core network can be connected to a data network. Each of the base station and the core network can support 4G communication technology, 5G communication technology, and / or 6G communication technology. Communication between the gateway and the base station can be performed based on an NR-Uu interface or a 6G-Uu interface, and communication between the base station and the core network (e.g., AMF, UPF, SMF) can be performed based on an NG-C / U interface or a 6G-C / U interface.

[0064] FIGS. 2a to 2c illustrate the structure of a regenerative-based NTN according to an embodiment of the present disclosure.

[0065] Referring to FIG. 2a, the NTN may include a first satellite (211), a second satellite (212), a communication node (220), a gateway (230), a data network (1240), etc. Each of the first satellite (211) and the second satellite (212) may perform a regeneration operation (e.g., demodulation operation, decoding operation, re-encoding operation, re-modulation operation, and / or filtering operation) on a payload received from other entities constituting the NTN (e.g., communication node (220), gateway (230)), and may transmit the regenerated payload.

[0066] Each of the first satellite (211) and the second satellite (212) may be an LEO satellite, MEO satellite, GEO satellite, HEO satellite, or UAS platform. The UAS platform may include HAPS. Satellite #1 (211) may be connected to the second satellite (212), and an inter-satellite link (ISL) may be established between the first satellite (211) and the second satellite (212). The ISL may operate in a radio frequency (RF) frequency or optical band. The ISL may be established optionally. Communication nodes (220) may include communication nodes located on the ground (e.g., UE, terminal) and communication nodes located off the ground (e.g., airplane, drone). A service link (e.g., wireless link) may be established between satellite #1 (211) and the communication nodes (220). The first satellite (211) may be referred to as an NTN payload. The first satellite (211) can provide communication services to the communication node (220) using one or more beams.

[0067] The communication node (220) can communicate (e.g., downlink communication, uplink communication) with the first satellite (211) using 4G communication technology, 5G communication technology, and / or 6G communication technology. Communication between the first satellite (211) and the communication node (220) can be performed using an NR-Uu interface or a 6G-Uu interface. If DC is supported, the communication node (220) can be connected to the first satellite (211) as well as other base stations (e.g., base stations supporting 4G functions, 5G functions, and / or 6G functions), and can perform DC operations based on the technology defined in the 4G specifications, 5G specifications, and / or 6G specifications.

[0068] The gateway (230) may be located on the ground, and a feeder link may be established between the first satellite (211) and the gateway (230), and a feeder link may be established between the second satellite (212) and the gateway (230). The feeder link may be a wireless link. If an ISL is not established between the first satellite (211) and the second satellite (212), a feeder link between the first satellite (211) and the gateway (230) may be established mandatorily. Communication between the gateway (230) and each of the first satellite (211) and satellite #2 (212) may be performed based on an NR-Uu interface, a 6G-Uu interface, or SRI. The gateway (230) may be connected to a data network (240).

[0069] As in the embodiments of FIGS. 2b and 2c, a core network may exist between the gateway (230) and the data network (240).

[0070] Referring to FIGS. 2b and 2c, the gateway can be connected to a core network, and the core network can be connected to a data network. The core network can support 4G communication technology, 5G communication technology, and / or 6G communication technology. For example, the core network may include an AMF, UPF, SMF, etc. Communication between the gateway and the core network may be performed based on an NG-C / U interface or a 6G-C / U interface. The functions of a base station may be performed by a satellite. That is, the base station may be located on a satellite. The payload may be processed by the base station located on the satellite. Base stations located on different satellites may be connected to the same core network. A single satellite may have one or more base stations. In the NTN of FIG. A-2b, an ISL between satellites may not be established, while in the NTN of FIG. A-2c, an ISL between satellites may be established.

[0071] Meanwhile, entities constituting the NTN illustrated in FIG. 1a, FIG. 1b, FIG. 2a, FIG. 2b, and / or FIG. 2c (e.g., satellite, base station, UE, communication node, gateway, etc.) may be configured as follows. In the present disclosure, an entity may be referred to as a communication node.

[0072] FIG. 3 illustrates a block diagram of a device according to an embodiment of the present disclosure. The structure exemplified in FIG. 3 may be understood as the structure of at least part of a communication node, base station, satellite, or core network entity. The wireless device (300) exemplified in FIG. 3 may be a mobile terminal such as a smartphone, tablet PC, or wearable device, but is not limited thereto.

[0073] Referring to FIG. 3, the wireless device (300) may include at least one control unit (310), at least one memory (320), at least one power supply unit (330), at least one transceiver unit (340), at least one input unit (350), at least one output unit (360) and / or at least one antenna (370).

[0074] The control unit (310) can control the memory (320) and / or the transmission / reception unit (340) and may be configured to implement the descriptions, functions, procedures, proposals, methods, and / or operation sequences disclosed in this disclosure. The memory (320) may be connected to the control unit (310) and may store various information related to the operation of the control unit (310). For example, the memory (320) may store software code including instructions for performing some or all of the controls controlled by the control unit (310) or for performing the descriptions, functions, procedures, proposals, methods, and / or operation sequences disclosed in this disclosure. The configuration of the memory is not limited in a particular way. For example, it may be configured as at least one of read-only memory (ROM) and random access memory (RAM).

[0075] At least one control unit (310) may be referred to as a processor, microcontroller, microprocessor, or microcomputer. The descriptions, functions, procedures, proposals, methods, and / or flowcharts of operations disclosed in this disclosure may be implemented using firmware or software in the form of code, instructions, and / or sets of instructions. Here, the firmware or software may execute other programs stored in memory (320), such as an OS. The control unit (310) may be implemented to support differently weighted beamforming or directional routing operations to effectively control the outgoing signal from at least one antenna (370) to a desired direction.

[0076] Additionally, at least one control unit (310) may be coupled with a backhaul or network interface. The wireless device (300) may communicate with other wireless devices through the backhaul or network interface. The control unit (310) may include at least one processor. The processor may mean a central processing unit (CPU), a graphics processing unit (GPU), or a dedicated processor on which the methods according to embodiments of the present disclosure are performed.

[0077] At least one transceiver (340) may be connected to a control unit (310) and may transmit and / or receive a wireless signal through at least one antenna (370). The transceiver (340) may include a transmitter and / or a receiver. At least one transceiver (340) may transmit user data, control information, wireless signals / channels, etc., as described in the methods and / or operation flowcharts of the present disclosure to at least one other device. For example, at least one transceiver (340) may be connected to at least one control unit (310) and may transmit and receive wireless signals. Additionally, at least one control unit (310) may control at least one transceiver (340) to transmit user data, control information, or wireless signals to at least one other device. At least one transmitter (340) may receive a signal transmitted by another wireless device from at least one antenna (370). Additionally, at least one transceiver (24) can down-convert or up-convert the received signal to generate a baseband signal. At least one antenna (370) may be a plurality of physical antennas or a plurality of logical antennas (e.g., antenna ports).

[0078] The input unit (350) can acquire information such as user input, video, and audio, and may include various input means such as various mechanical / electronic input means, cameras, and microphones. The output unit (360) is intended to provide information to a user by generating output related to sight, hearing, or touch, and may include a display, speaker, vibration module, etc. The wireless device (300) supplies power through the power unit (330), and the power unit (330) may include a wired / wireless charging circuit, battery, etc.

[0079] A more detailed example of the structure of the control unit (310) and / or the transceiver unit (340) is shown in FIG. 4. FIG. 4 illustrates a block diagram of devices performing communication according to an embodiment of the present disclosure. FIG. 4 illustrates the structure of a first communication node (400a) and a second communication node (400b) that transmit and / or receive a signal. In FIG. 4, each of the first communication node (400a) and the second communication node (400b) may be a base station or a UE.

[0080] Referring to FIG. 4, the first communication node (400a) can transmit a signal to the second communication node (400b). The transmission processor (411) included in the first communication node (400a) can receive data (e.g., data unit) from the data source (410). The transmission processor (411) can receive control information from the controller (416). The control information may include at least one of system information, RRC setting information (e.g., information set by RRC signaling), MAC control information (e.g., MAC CE), or PHY control information (e.g., DCI, SCI).

[0081] The transmitting processor (411) can generate data symbol(s) by performing processing operations on data (e.g., encoding operations, symbol mapping operations, etc.). The transmitting processor (411) can generate control symbol(s) by performing processing operations on control information (e.g., encoding operations, symbol mapping operations, etc.). Additionally, the transmitting processor (411) can generate synchronization / reference symbol(s) for synchronization signals and / or reference signals.

[0082] The Tx MIMO processor (412) can perform spatial processing operations (e.g., precoding operations) on data symbol(s), control symbol(s), and / or synchronization / reference symbol(s). The output (e.g., symbol stream) of the Tx MIMO processor (412) can be provided to modulators (MODs) included in transceivers (413a to 413t). The modulators (MODs) can perform processing operations on the symbol stream to generate modulated symbols and perform additional processing operations on the modulated symbols (e.g., analog conversion operations, amplification operations, filtering operations, up-conversion operations) to generate signals. The signals generated by the modulators (MODs) of the transceivers (413a to 413t) can be transmitted through antennas (414a to 414t).

[0083] Signals transmitted by the first communication node (400a) can be received at the antennas (464a to 464r) of the second communication node (400b). Signals received at the antennas (464a to 464r) can be provided to demodulators (DEMODs) included in the transceivers (463a to 463r). The demodulators (DEMODs) can obtain samples by performing processing operations on the signals (e.g., filtering operation, amplification operation, down-conversion operation, digital conversion operation). The demodulators (DEMODs) can obtain symbols by performing additional processing operations on the samples. The MIMO detector (462) can perform MIMO detection operations on the symbols. The receiving processor (461) can perform processing operations on the symbols (e.g., deinterleaving operation, decoding operation). The output of the receiving processor (461) can be provided to the data sink (460) and the controller (466). For example, data can be provided to the data sink (460), and control information can be provided to the controller (466).

[0084] Meanwhile, the second communication node (400b) can transmit a signal to the first communication node (400a). The transmission processor (468) included in the second communication node (400b) can receive data (e.g., data unit) from the data source (467) and can generate data symbol(s) by performing a processing operation on the data. The transmission processor (468) can receive control information from the controller (466) and can generate control symbol(s) by performing a processing operation on the control information. Additionally, the transmission processor (468) can generate reference symbol(s) by performing a processing operation on a reference signal.

[0085] The Tx MIMO processor (469) can 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 (469) can be provided to modulators (MODs) included in transceivers (463a to 463t). The modulators (MODs) can perform processing operations on the symbol stream to generate modulated symbols and perform additional processing operations on the modulated symbols (e.g., analog conversion operations, amplification operations, filtering operations, up-conversion operations) to generate signals. The signals generated by the modulators (MODs) of the transceivers (463a to 463t) can be transmitted through antennas (464a to 464t).

[0086] Signals transmitted by the second communication node (400b) can be received at the antennas (414a to 414r) of the first communication node (400a). Signals received at the antennas (414a to 414r) can be provided to demodulators (DEMODs) included in the transceivers (413a to 413r). The demodulators (DEMODs) can obtain samples by performing processing operations on the signals (e.g., filtering operation, amplification operation, down-conversion operation, digital conversion operation). The demodulators (DEMODs) can obtain symbols by performing additional processing operations on the samples. The MIMO detector (420) can perform MIMO detection operations on the symbols. The receiving processor (419) can perform processing operations on the symbols (e.g., deinterleaving operation, decoding operation). The output of the receiving processor (419) can be provided to the data sink (418) and the controller (416). For example, data can be provided to the data sink (418), and control information can be provided to the controller (416).

[0087] The memories (415 and 465) may store data, control information, and / or program code. The scheduler (417) may perform scheduling operations for communication. The processors (411, 412, 419, 461, 468, 469) and controllers (416, 466) shown in FIG. 4 may be the processor (310) shown in FIG. 3 and may be used to perform the methods described in this disclosure.

[0088] FIGS. 5A and 5B illustrate block diagrams of a transmission path and a reception path of a communication node according to an embodiment of the present disclosure.

[0089] Referring to FIGS. 5a and 5b, a transmission path (510) may be implemented at a communication node that transmits a signal, and a reception path (520) may be implemented at a communication node that receives a signal. The transmission path (510) may include a channel coding and modulation block (511), an S-to-P (serial-to-parallel) block (512), an N IFFT (Inverse Fast Fourier Transform) block (513), a P-to-S (parallel-to-serial) block (514), a CP (cyclic prefix) addition block (515), and an UC (up-converter) (UC) (516). The reception path (520) may include a DC (down-converter) (521), a CP removal block (522), an S-to-P block (523), an N FFT block (524), a P-to-S block (525), and a channel decoding and demodulation block (526). Here, N can be a natural number.

[0090] Information bits in the transmission path (510) can be input to a channel coding and modulation block (511). The channel coding and modulation block (511) can perform coding operations (e.g., LDPC (low-density parity check) coding operations, polar coding operations, etc.) and modulation operations (e.g., QPSK (Quadrature Phase Shift Keying), QAM (Quadrature Amplitude Modulation), etc.) on the information bits. The output of the channel coding and modulation block (511) can be a sequence of modulation symbols.

[0091] The S-to-P block (512) can convert modulated symbols in the frequency domain into parallel symbol streams to generate N parallel symbol streams. N can be the IFFT size or the FFT size. The N IFFT block (513) can generate signals in the time domain by performing an IFFT operation on the N parallel symbol streams. The P-to-S block (514) can convert the output of the N IFFT block (513) (e.g., parallel signals) into a serial signal to generate a serial signal.

[0092] The CP addition block (515) can insert CP into the signal. The UC (516) can up-convert the frequency of the output of the CP addition block (515) to an RF (radio frequency) frequency. Additionally, the output of the CP addition block (515) can be filtered in the baseband before up-conversion.

[0093] A signal transmitted from the transmission path (510) can be input to the reception path (520). The operation in the reception path (520) may be the inverse operation of the operation in the transmission path (510). The DC (521) may down-convert the frequency of the received signal to a baseband frequency. The CP removal block (522) may remove CP from the signal. The output of the CP removal block (522) may be a serial signal. The S-to-P block (523) may convert the serial signal into parallel signals. The NFFT block (524) may generate N parallel signals by performing an FFT algorithm. The P-to-S block (525) may convert the parallel signals into a sequence of modulation symbols. The channel decoding and demodulation block (526) may perform a demodulation operation on the modulation symbols and restore data by performing a decoding operation on the result of the demodulation operation.

[0094] In FIGS. 5A and 5B, Discrete Fourier Transform (DFT) and Inverse DFT (IDFT) may be used instead of FFT and IFFT. In FIGS. 5A and 5B, each of the blocks (e.g., components) may be implemented by at least one of hardware, software, or firmware. For example, in FIGS. 5A and 5B, some blocks may be implemented by software, and the remaining blocks may be implemented by hardware or a "combination of hardware and software." In FIGS. 5A and 5B, one block may be subdivided into multiple blocks, multiple blocks may be integrated into one block, some blocks may be omitted, and blocks supporting other functions may be added.

[0095] FIG. 6 illustrates an example of a system frame in a wireless communication system according to an embodiment of the present disclosure.

[0096] Referring to FIG. 6, time resources in a communication system can be divided into frames. 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 (millisecond). 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 a system frame after system frame #1023 can be #0.

[0097] A single system frame may contain two half frames. The length of a single half frame may be 5ms. 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 contain 10 subframes. The length of a single subframe may be 1ms. Within a single system frame, the 10 subframes may be referred to as "Subframe #0-9".

[0098] FIG. 7 illustrates an example of a subframe in a wireless communication system according to an embodiment of the present disclosure.

[0099] Referring to FIG. 7, one subframe may contain n slots, where n is a natural number. Thus, one subframe may consist of one or more slots.

[0100] FIG. 8 illustrates an example of a slot in a wireless communication system according to an embodiment of the present disclosure.

[0101] Referring to FIG. 8, a slot may contain one or more symbols. A slot illustrated in FIG. A-8 may contain 14 symbols. The length of the slot may vary depending on the number of symbols included in the slot and the length of the symbols. Alternatively, the length of the slot may vary depending on the numerology.

[0102] Numerals applied to physical signals and channels in a communication system may be variable. Numerals may be variable to meet various technical requirements of the communication system. In a communication system where CP (cyclic prefix) based OFDM waveform technology is applied, numerals may include subcarrier spacing and CP length (or CP type). [Table 1] may be an example of a method for configuring numerals for a CP-OFDM based communication system. Depending on the frequency band in which the communication system operates, at least some of the numerals in [Table 1] may be supported. Additionally, numerals not listed in [Table 1] may be further supported in the communication system.

[0103] Subcarrier Spacing 15kHz 30kHz 60kHz 120kHz 240kHz 480kHz OFDM Symbol Length [μs] 66.733.316.78.34.22.1 CP Length [us] 4.762.381.190.600.300.151 Number of OFDM Symbols in ms 142856112224448

[0104] When the subcarrier spacing is 15 kHz (e.g., μ=0), the slot length may be 1 ms. In this case, one system frame may contain 10 slots. When the subcarrier spacing is 30 kHz (e.g., μ=1), the slot length may be 0.5 ms. In this case, one system frame may contain 20 slots.

[0105] When the subcarrier spacing is 60 kHz (e.g., μ=2), the slot length may be 0.25 ms. In this case, one system frame may contain 40 slots. When the subcarrier spacing is 120 kHz (e.g., μ=3), the slot length may be 0.125 ms. In this case, one system frame may contain 80 slots. When the subcarrier spacing is 240 kHz (e.g., μ=4), the slot length may be 0.0625 ms. In this case, one system frame may contain 160 slots.

[0106] The symbol can be set as a downlink (DL) symbol, a flexible (FL) symbol, or an uplink (UL) symbol. A slot consisting only of DL symbols may be referred to as a "DL slot," a slot consisting only of FL symbols may be referred to as a "FL slot," and a slot consisting only of UL symbols may be referred to as a "UL slot."

[0107] FIG. 9 illustrates the timing relationship between the uplink and downlink in a wireless communication system according to an embodiment of the present disclosure.

[0108] There is one set of frames in the uplink, and there is also one set of frames in the downlink of each carrier. The uplink frame number i for transmission from the UE is It must start previously, and this must coincide with the start of the corresponding downlink frame observed in the UE.

[0109] Here, and This can be provided by adjusting the transmission timing of the synchronization procedure. However, for msgA transmission in PUSCH (physical uplink shared channel), NTA = 0.

[0110] It is derived from the upper layer parameters ta-Common, ta-CommonDrift, and ta-CommonDriftVariant, in the case where it is not configured am.

[0111] is calculated by the UE only when the UE's position and related upper-layer parameters are configured according to the transmission timing adjustment of the synchronization procedure, and otherwise, am.

[0112] As described above, downlink and uplink timing can be adjusted based on the transmission timing adjustment of the synchronization procedure. Section 4.2 of 3GPP TS 38.213 defines the timing adjustment procedure for the synchronization procedure. The aforementioned timing advance (TA) can be determined based on the signal transmission and reception times of the random access procedure. Specifically, the terminal can identify uplink resources and determine uplink transmission power based on control information and / or configuration information received from the base station. Then, the terminal can transmit PUSCH using the determined power through the identified resources. As an example, the base station can determine the TA based on the arrival time of the preamble transmitted by the terminal. Sections 8.1 and 8.2 of 3GPP TS 38.213 define the random access procedure.

[0113] A terminal that has performed a random access procedure may receive configuration information from a base station and transmit a PUSCH based on the configuration information. Specifically, the terminal may identify uplink resources and determine uplink transmit power based on control information and / or configuration information received from the base station. Then, the terminal may transmit a PUSCH using the determined power through the identified resources. Section 7.11 of 3GPP TS 38.213 defines the PUSCH transmission procedure of a terminal as follows.

[0114]

[0115] The aforementioned PUSCH transmission can be controlled via a physical uplink control channel (PUCCH). In NR, the terminal transmits uplink control information (UCI) to the base station via the PUCCH. The control information may include at least one of a HARQ-ACK indicating whether demodulation / decoding of a transport block (TB) received by the terminal via PDSCH was successful, a scheduling request (SR) in which the terminal requests resource allocation from the PUSCH base station for uplink data transmission, and channel state information (CSI), which is information for reporting the terminal's channel status. The PUCCH may be transmitted repeatedly, and the repeated transmission procedure may be performed based on Section 9.2.6 of 3GPP TS 38.213 as follows.

[0116]

[0117] Meanwhile, NTN reference scenarios can be defined as shown in [Table 4] below.

[0118] NTN illustrated in Fig. 1a, NTNGEO illustrated in Fig. 2a, Scenario A, BLEO (Adjustable Beam) Scenario C1, Scenario D1, LEO (Beam Moving with Satellite) Scenario C2, Scenario D2

[0119] In the NTN depicted in FIG. 1a and / or FIG. 1b, if the satellite (110) is a GEO satellite (e.g., a GEO satellite supporting transparent functions), this may be referred to as “Scenario A”. In the NTN depicted in FIG. 2a, FIG. 2b, and / or FIG. 2c, if the first satellite (211) and the second satellite (212) are each GEO satellites (e.g., GEO supporting regeneration functions), this may be referred to as “Scenario B”.

[0120] In the non-ground network depicted in FIG. 1a and / or FIG. 1b, if the satellite (110) is a LEO satellite having steerable beams, this may be referred to as “Scenario C1”. In the non-ground network depicted in FIG. 1a and / or FIG. 1b, if the satellite (110) is a LEO satellite having beams that move with the satellite, this may be referred to as “Scenario C2”. In the non-ground network depicted in FIG. 2a, FIG. 2b, and / or FIG. 2c, if satellite #1 (211) and satellite #2 (212) are each LEO satellites having steerable beams, this may be referred to as “Scenario D1”. In the non-ground network shown in FIG. 2a, FIG. 2b, and / or FIG. 2c, if satellite #1 (211) and satellite #2 (212) are each LEO satellites having beams moving with the satellite, this may be referred to as “Scenario D2”.

[0121] The parameters for the NTN reference scenarios defined in [Table 4] can be defined as shown in [Table 5] below.

[0122] Scenarios A and B Scenarios C and D Elevation 35,786 km 600 km 1,200 km Spectrum (Service Link) <6 GHz (e.g., 2 GHz) > 6 GHz (e.g., DL 20 GHz, UL 30 GHz) Maximum Channel Bandwidth Capacity (Service Link) 30 MHz for band < 6 GHz 1 GHz for band > 6 GHz Maximum Distance between Satellite and Communication Node (e.g., UE) at Minimum Elevation Angle 40,581 km 1,932 km (600 km altitude) 3,131 km (1,200 km altitude) Maximum RTD (Round Trip Delay) (Propagation Delay Only) Scenario A: 541.46 ms (Service and Feeder Links) Scenario B: 270.73 ms (Service Link Only) Scenario C: (Transparent Payload: Service and Feeder Links) -25.77 ms (600 km Altitude) -41.77ms (1200km altitude) Maximum differential delay within a single cell 10.3ms 3.12ms (600km altitude) 3.18ms (1200km altitude) Service Link NR or 6G Feeder Link 3GPP or non-3GPP defined radio interface

[0123] In addition, in the NTN reference scenario defined in [Table 3], the delay constraint can be defined as shown in [Table 6] below.

[0124] Scenario A Scenario B Scenario C1-2 Scenario D1-2 Satellite Altitude 35,768 km 600 km Maximum RTD at radio interface between base station and UE 541.75 ms (Worst case) 270.57 ms 28.41 ms 12.88 ms Minimum RTD at radio interface between base station and UE 477.14 ms 238.57 ms 8 ms 4 ms

[0125] FIGS. 10a and FIG. 10b illustrate examples of protocol stacks of the user plane and control plane in a transparent payload-based NTN in a wireless communication system according to an embodiment of the present disclosure.

[0126] Referring to FIGS. 10a and 10b, user data may be transmitted and / or received between the UE and a core network (e.g., UPF), and control data (e.g., control information) may be transmitted and / or received between the UE and a core network (e.g., AMF). Each of the user data and control data may be transmitted and / or received via a satellite and / or gateway. The protocol stack of the user plane illustrated in FIG. 10a may be applied to a 6G communication network in the same or similar manner. The protocol stack of the control plane illustrated in FIG. 10b may be applied to a 6G communication network in the same or similar manner.

[0127] FIGS. 11a and 11b illustrate examples of protocol stacks of the user plane and the control plane in a regenerated payload-based NTN in a wireless communication system according to an embodiment of the present disclosure.

[0128] Referring to FIGS. 11a and 11b, user data and control data (e.g., control information), respectively, can be transmitted and / or received through an interface between the UE and a satellite (e.g., a base station). User data may include a user protocol data unit (PDU). A protocol stack of the satellite radio interface (SRI) can be used to transmit and / or receive user data and / or control data between the satellite and the gateway. User data can be transmitted and / or received through a General Packet Radio Service (GPRS) tunneling protocol (GTP)-U tunnel between the satellite and the core network.

[0129] Regarding NTN communication, an NTN may be configured to provide non-terrestrial NR access to a UE through an NTN payload and an NTN gateway. A service link refers to a connection between the NTN payload and the UE, and a feeder link may refer to a link between the NTN gateway and the NTN payload. Configuration and procedures for the NTN, service link, and feeder link may be implemented in combination with, or partially performed or modified from, the configuration and procedures disclosed in Section 16.14 of 3GPP TS 38.300.

[0130] FIG. 12 illustrates an example of an NTN that provides non-terrestrial NR access to a UE through an NTN payload and an NTN gateway. FIG. 12 shows a service link between the NTN payload and the UE and a feeder link between the NTN gateway and the NTN payload.

[0131] The NTN payload transparently transmits the wireless protocol received from the UE via the service link to the NTN gateway via the feeder link, or vice versa. Here, the connectivity supported by the NTN payload is as follows.

[0132] - An NTN gateway can provide multiple NTN payloads.

[0133] - A single NTN payload can be provided by multiple NTN gateways.

[0134] - The NTN payload can change the carrier frequency before retransmission on the service link, or vice versa (at each feeder link).

[0135] In NTN, the following may apply in addition to the network identifier.

[0136] - A tracking area corresponds to a fixed geographical area. Each mapping is configured in the RAN.

[0137] - Mapped cell ID defined in Section 16.14.5.

[0138] Three types of service links are supported.

[0139] - Earth-fixed: Service links can be provided by beam(s) that always continuously cover the same geographic area (e.g., GSO (Geosynchronous Orbit) satellites).

[0140] - Quasi-earth-fixed: Service links may be provided by beam(s) that cover one geographic area for a limited period and another geographic area for a different period (e.g., NGSO (non-GSO) satellites generating steerable beams).

[0141] - Earth-moving: Service links may be provided by beam(s) moving across the Earth's surface (e.g., NGSO satellites generating fixed beams or non-steeringable beams).

[0142] A gNB operating as an NGSO satellite can provide a quasi-Earth fixed service link or an Earth moving service link, and a gNB operating as a GSO satellite can provide an Earth fixed service link.

[0143] Timing and synchronization are as follows.

[0144] Regarding scheduling and timing, downlink and uplink frames are aligned using an offset given by NTA,offset (see Section 4.2 of TS 38.213) at the uplink time synchronization reference point (RP). To accommodate the propagation delay of NTN, some timing relationships are reinforced by a common timing advance (TA) and two offsets, K_offset and k_mac.

[0145] - Common TA is a timing offset configured to be equal to the round trip time (RTT) between the RP and NTN payloads.

[0146] - K offset is a configured scheduling offset that must be greater than or equal to the sum of the service link RTT and the common TA.

[0147] - k mac is an offset configured to be approximately equal to the RTT between RP and gNB.

[0148] Scheduling offset K offset is used to allow the UE sufficient processing time between downlink reception and uplink transmission (see TS 38.213). Offset k mac It is used to delay the application of the downlink configuration dictated by the MAC CE instruction in PDSCH (see TS 38.213) and for estimating the UE-gNB RTT (see TS 38.321). If downlink and uplink frame timings are not aligned at the gNB, offset k mac It can be provided by the network. Also, offset k mac It is used to determine the RAR window / MsgB window start time after Msg1 / MsgA transmission in random access procedures (see TS 38.213). Service link RTT, feeder link RTT, RP, common TA, k mac and TTA are as shown in FIG. 13. FIG. 13 illustrates the timing relationship between objects included in NTN.

[0149] The network can configure HARQ operations as follows.

[0150] - For downlinks, HARQ feedback can be enabled or disabled on a per-HARQ process basis. Disabling HARQ feedback allows scheduling the HARQ process before one HARQ RTT has elapsed since the last scheduling.

[0151] - For uplinks, a HARQ mode (e.g., HARQ Mode A or HARQ Mode B) can be configured per HARQ process. HARQ Mode B allows scheduling a HARQ process before one HARQ RTT has elapsed since the last scheduling.

[0152] For HARQ processes configured to enable / disable HARQ feedback, it depends on the network implementation to ensure the appropriate HARQ feedback configuration (e.g., enable all or disable all) for the HARQ processes used in the SPS configuration. For HARQ processes configured in HARQ mode, it depends on the network implementation to ensure the appropriate HARQ mode configuration (e.g., all HARQ modes A or all HARQ modes B) for the HARQ processes used in the CG (configured grant) configuration.

[0153] Meanwhile, in NTN, a base station may transmit system information (e.g., SIB19) containing satellite assistance information for NTN access. A UE may receive system information (e.g., SIB19) from a base station, verify the satellite assistance information included in the system information, and perform communication (e.g., non-terrestrial communication) based on the satellite assistance information. SIB19 may include information element(s) defined in [Table 7] below.

[0154] SIB19-r17 :: = SEQUENCE {ntn-Config-r17 NTN-Config-r17 OPTIONAL,t-service-r17 INTEGER(1..549755813887) OPTIONAL,referenceLocation-r17 ReferenceLocation-r17 OPTIONAL,distanceThresh-r17 INTEGER(1..65525) OPTIONAL,ntn-NeighCellConfigList-r17 NTN-NeighCellConfigList-r17 OPTIONAL,lateNonCRiticalExtension OCTET STRING...,[[ntn-NeighCellConfigListExt-v1720 NTN-NeighCellConfigList-r17 OPTIONAL,]],[[movingReferenceLocation-r18 ReferenceLocation-r17 OPTIONAL,satSwitchWithReSync-r18 SatSwitchWithReSync-r18 OPTIONAL,]]}NTN-NeighCellConfigList-r17 :: = SEQUENCE (SIZE(1..maxCellNTN-r17)) OFNTN-NeighCellConfig-r17NTN-NeighCellConfig-r17 :: = SEQUENCE {ntn-Config-r17 NTN-Config-r17 OPTIONAL,carrierFreq-r17 ARFCN-ValueNR OPTIONAL,physCellId-r17 PhysCellId OPTIONAL}SatSwitchWithReSync-r18 :: = SEQUENCE {ntn-Config-r18 NTN-Config-r17,t-ServiceStart-r18 INTEGER(1..549755813887) OPTIONAL,ssb-TimeOffset-r18 INTEGER(1..159) OPTIONAL}

[0155] The NTN-Config defined in [Table 7] may include the information element(s) defined in [Table 8] below.

[0156] NTN-Config-r17 ::= SEQUENCE {epochTime-r17 EpochTime-r17ntn-UISyncValidityDuration-r17 ENUMERATED {s5, s10, s15, s20, s25, s30, s35, s40, s45, s50, s55, s60, s120, s180, s240, s900}cellSpecificKoffset-r17 INTEGER(1..1023)kmac-r17 INTEGER(1..512)ta-Info-r17 TA-Info-r17ntn-PolarizationDL-r17 ENUMERATED {rhcp, lhcp, linear}ntn-PolarizationUL-r17 ENUMERATED {rhcp, lhcp, linear}ephemerisInfo-r17 EphemerisInfo-r17ta-Report-r17 ENUMERATED {enabled}...}EpochTime-r17 ::= SEQUENCE {sfn-r17 INTEGER(1..1023)subFrameNR-r17 INTEGER(1..9)}TA-Info-r17 ::= SEQUENCE {ta-Common-r17 INTEGER(1..66485757)ta-CommonDrift-r17 INTEGER(-257303..257303)ta-CommonDriftVarant-r17 INTEGER(0..28949)}

[0157] EphemerisInfo defined in [Table 8] may include the information element(s) defined in [Table 9] below.

[0158] EphemerisInfo-r17 ::= CHOICE {positionVelocity-r17 PositionVelocity-r17,orbital-r17 Orbital-r17}PositionVelocity-r17 ::= SEQUENCE {positionX-r17 PositionStateVector-r17,positionY-r17 PositionStateVector-r17,positionZ-r17 PositionStateVector-r17, velocity V INTEGER (0..1048575),periapsis-r17 INTEGER (0..268435455),longitude-r17 INTEGER (0..268435455),incliating-r17 INTEGER (-67108864..67108863),meanAnomaly-r17 INTEGER (0..268435455)}PositionStateVector-r17 ::= INTEGER (-33554432..33554431)VelocityStateVector-r17 ::= INTEGER (-131072..131071)

[0159] In addition, if there is a difference in NTN connection settings compared to TN connection, NTN-parameter may include information elements defined in [Table 10] below to convey UE wireless connection capability parameters applied to NTN connection.

[0160] NTN-parameters-r17 ::= SEQUENCE {inactiveStateNTN-r17 ENUMERATED {supported} OPTIONAL,ra-SDT-NTN-r17 ENUMERATED {supported} OPTIONAL,srb-SDT-NTN-r17 ENUMERATED {supported} OPTIONAL,measAndMobParametersNTN-r17 MeasAndMobParameters OPTIONAL,mac-ParametersNTN-r17 Mac-Parameters OPTIONAL,phy-ParametersNTN-r17 Phy-Parameters OPTIONAL,fdd-ADD-UE-NR-CapabilitiesNTN-r17 UE-NR-CapabilityNTNAddXDD-Mode OPTIONAL,frl-ADD-UE-NR-CapabilitiesNTN-r17 UE-NR-CapabilityNTNAddFRX-Mode OPTIONAL,ue-BasedPerfMeas-ParametersNTN-r17 UE-BasedPerfMeas-Parameters-r16 OPTIONAL,son-ParametersNTN-r17 SON-Parameters-r16 OPTIONAL}

[0161] The coverage of Phase 3 NTN discussed in Rel-19 RAN WG1 is presented in the work item description (WID), and the details regarding uplink capacity enhancement are as follows.

[0162] Uplink Capacity / Throughput Enhancement for FR1-NTN [RAN1, RAN2, RAN4]* Study then specify, if beneficial, DFT-s-OFDM PUSCH enhancements via Orthogonal Cover Codes (OCC)- Determine the achievable capacity improvement to be targeted taking into account realistic impairments (e.g. Doppler, time variation, phase distortion, etc)Specify necessary signalling, if needed- Update RF requirements accordingly, if needed- Note: The study can consider orthogonal cover codes across OFDM symbols, across slots, and / or within an OFDM symbol.- Note: the study phase is targeted to be completed by RAN#104* Notes for this objective:- The enhancement is not targeting improvements / impacts of MU-MIMO capability- The enhancement is not targeted to PUSCH DMRS- No enhancement for initial access- Enhancements to PRACH are not in scope.- This feature may be applicable for UEs operating in terrestrial networks based on a common design

[0163] Referring to the above WID in [Table 11], the application of orthogonal cover codes (OCC) to the PUSCH payload for DFT-s-OFDM PUSCH is currently under discussion to increase uplink capacity and throughput. The approvals from recent meetings regarding this are as follows.

[0164] First Online proposal 2-1For the normative phase,● Support OCC length 2 with inter-slot OCC to multiplex up to 2 UEs.● Support OCC length 4 with one of the following OCC techniqueso Option 1: Inter-slot with OCC length 4 to multiplex up to 4 UEs.o Option 2: Intra-symbol pre-DFT OCC with OCC length 4 with TBoMS to multiplex up to 4 UEs.o Option 3: Combination of Inter-slot OCC with OCC length 2 and intra-symbol pre-DFT OCC with OCC length 2 to multiplex up to 4 UEs.♣ FFS: whether option 3 requires pairing with TBoMSWorking assumptionFor the normative phase,● Support OCC length 2 with inter-slot OCC to multiplex up to 2 UEs.● Support OCC length 4 with one of the following OCC techniqueso Option 1: Inter-slot with OCC length 4 to multiplex up to 4 UEs.o Option 2: Intra-symbol pre-DFT OCC with OCC length 4 to multiplex up to 4 UEs.o Option 3: Combination of Inter-slot OCC with OCC length 2 and intra-symbol pre-DFT OCC with OCC length 2 to multiplex up to 4 UEs.o Note 1:♣ At least consider 8 slots, 16 slots, and 20 slots for VoIP with BLER 2% target, with 1 RB, 2 RBs when comparing Option 1, Option 2, and Option 3. Companies can additionally report on 4 slots at least for 2 RBs.♣ Option 2 assumes TBoMS, FFS Option 3 assumes TBoMSNote 2: as part of the working assumption, it is assumed that there would be separate UE capabilities for OCC length 2 and OCC length 4, where UE capability for OCC length 2 is a prerequisite for UE capability for OCC length 4.ConclusionFor TBS calculation and rate matching for OCC with PUSCH, for inter-slot OCC in the working assumption of RAN1#118bis:● for inter-slot OCC for OCC length 2 and for inter-slot OCC for OCC length 4 in option 1 in the working assumption of RAN1#118biso No change in determination of TBSo No change for rate matchingAgreementFor RV cycling for OCC with PUSCH● For inter-slot OCC for OCC length 2 and for inter-slot OCC for OCC length 4 in option 1 in the working assumption of RAN1#118biso Same RV value is used in one OCC group (i.e., OCC length applied to N slots).o FFS: RV cycling can be additionally used across OCC groupsSecond Offline Proposal 3-3RAN1 can study the following options for UCI multiplexing for OCC with PUSCH, at least for single UCI:● For Inter-slot time domain OCC with PUSCH repetition type Ao Option A-1: UCI should be multiplexed on every slot / repetition of the time span of an OCC sequence. UCI uses the same OCC scheme and OCC sequence as PUSCH.o Option A-4: If UCI is multiplexed on one of the repetitions in an OCC group, OCC is not applied on these repetitions.AgreementFor OCC sequence for OCC with PUSCH:● For OCC length 2, re-use orthogonal sequence [1 1; 1 -1].

[0165]

[0166] The key approvals in [Table 12] are summarized as follows.

[0167] For an OCC length of 2, inter-slot OCC may be supported. For an OCC length of 4, inter-slot OCC-4 may be supported as Option 1, intra-symbol OCC-4 may be supported as Option 2, and OCC-4 through a combination of inter-slot OCC-2 and intra-symbol OCC-2 may be supported as Option 3.

[0168] For OCC-2 and OCC-4 between slots, the RV index does not change within a single OCC group. The RV index across multiple OCC groups may be discussed later.

[0169] In the PUSCH UCI multiplexing in the slot-to-slot OCC of PUSCH repeat type A. As Option A-1, the UCI may be multiplexed for every slot / repeat PUSCH, and the same method as the OCC of the PUSCH may be applied to the UCI. As Option A-4, the UCI may be transmitted in one of the multiple slot / repeat PUSCHs, and the OCC may not be applied to the UCI.

[0170]

[0171] The present disclosure proposes various embodiments for related signaling and operation when a UCI is transmitted in one of the plurality of slot / repeated PUSCHs described above.

[0172]

[0173] FIGS. 14a through 14i illustrate an example in which a UCI is mapped in a PUSCH resource in a wireless communication system according to one embodiment of the present disclosure. Referring to FIGS. 14a through 14i, the UCI may include HARQ, CSI part 1, CSI part 2, etc. FIGS. 14a through 14e illustrate a case where the number of HARQ ACK bits included in the UCI is 2 or less, and FIGS. 14f through 14i illustrate a case where the number of HARQ ACK bits included in the UCI exceeds 2. Referring to FIGS. 14a through 14e, DM-RS is mapped, REs for HARQ-ACK are reserved, CSI part 1 and CSI part 2 are mapped, PUSCH data is mapped, and two HARQ-ACK symbols are mapped. Referring to FIGS. 14f to 14i, DM-RS is mapped, five HARQ-ACK symbols are mapped, REs for HARQ-ACK are reserved, CSI Part 1 and CSI Part 2 are mapped, and PUSCH data is mapped.

[0174] For convenience of explanation below, the present disclosure refers to a resource for transmitting a UCI including a HARQ ACK bit, CSI Part 1, CSI Part 2, etc. as 'UCI', and a resource for transmitting DMRS within other PUSCH resources as 'RS', and a resource for transmitting PTRS or data as 'DATA'.

[0175] In addition, for the convenience of the following explanation, the present disclosure refers to OFDM symbols transmitted within a PUSCH as follows, classified into three categories according to the type of information included.

[0176] - U-Symbol (UCI symbol): A symbol in which all REs within an allocated resource are composed of a UCI from the perspective of the sender (e.g., terminal).

[0177] - M-symbol (mixed-symbol): A symbol consisting of PUSCH DATA and a UCI or Empty RE from the sender's (e.g., terminal) perspective within allocated resources.

[0178] - D-symbol (data symbol): From the perspective of the sender (e.g., terminal), a symbol where all REs consist of DATA; a symbol where all REs consist of DMRS and an empty RE; or a symbol where all REs consist of DMRS and DATA.

[0179] If the OFDM symbols are distinguished as described above, the example in FIG. 14e can be expressed as 'UUDUMDDDDDDDDD'.

[0180]

[0181] Hereinafter, the present disclosure proposes various embodiments for PUSCH transmission multiplexed with UCI when a plurality of terminals are multiplexed using OCC.

[0182]

[0183] FIG. 15 illustrates an example of a procedure for transmitting UL data and UCI in a wireless communication system according to one embodiment of the present disclosure. FIG. 15 illustrates a method performed by a terminal.

[0184] Referring to FIG. 15, in step S1501, the terminal receives configuration information for OCC. In other words, the terminal receives configuration information for OCC application. The configuration information for OCC application may include information necessary for the terminal to apply OCC to the repeated transmission of PUSCH. For example, the configuration information for OCC application may include at least one of information regarding the number of repetitions of PUSCH, information regarding the length and / or value of the OCC sequence, information regarding RV to be used in a plurality of slots for PUSCH repetition, information regarding the arrangement of signals including UL data in a plurality of slots, information regarding the multiplexing of PUSCH and UCI, and information regarding power boosting. According to one embodiment, some of the information among the configuration information for OCC application may be determined based on pre-set rules without signaling by the base station.

[0185] In step S1503, the terminal receives a DCI. That is, the terminal receives a DCI containing an uplink grant. The uplink grant may include at least one of information regarding uplink resources for the terminal's PUSCH transmission, or information related to PUSCH repetition (e.g., information on whether to repeat transmission). In other words, the terminal may receive a DCI from a base station containing at least one of information regarding uplink resources for PUSCH transmission, or information related to PUSCH repetition. According to one embodiment, the DCI may further include at least one of information regarding OCC, information regarding the placement of UCI, or information regarding power boosting. Additionally, the DCI may include information directing the transmission of UCI.

[0186] In step S1505, the terminal generates UL data and a UCI. That is, the terminal reads the data stored in the buffer in a transmission unit (e.g., TB) and can encode the read data. Additionally, the terminal generates an SR, CQI, or HARQ-ACK as a UCI. Here, the UCI may be a UCI directed by the DCI or may include a UCI triggered by a separate signaling (e.g., CG (configured grant) signaling).

[0187] In step S1507, the terminal transmits UL data and UCI based on OCC. The terminal generates signals containing the UL data to be transmitted and generates signal(s) containing UCI through PUSCH repetition. The terminal maps the signals containing UL data to multiple slots. At this time, the terminal can multiplex the signal(s) containing UCI with the signals containing data in at least one slot. In other words, the terminal can map OFDM symbol(s) containing data and UCI to at least one slot. Then, the terminal transmits the signals to which OCC has been applied to the base station. The terminal can map the signals multiplied by the OCC sequence to multiple slots, perform OFDM modulation, and transmit OFDM symbols.

[0188]

[0189] FIG. 16 illustrates an example of a procedure for receiving UL data and UCI in a wireless communication system according to one embodiment of the present disclosure. FIG. 16 illustrates a method performed by a base station.

[0190] Referring to FIG. 16, in step S1601, the base station transmits configuration information for OCC. In other words, the base station transmits configuration information for OCC application. The configuration information for OCC application may include information necessary to apply OCC to the repeated transmission of PUSCH at the terminal. For example, the configuration information for OCC application may include at least one of information regarding the number of repetitions of PUSCH, information regarding the length and / or value of the OCC sequence, information regarding RV to be used in a plurality of slots for PUSCH repetition, information regarding the arrangement of signals including UL data in a plurality of slots, information regarding the multiplexing of PUSCH and UCI, and information regarding power boosting. According to one embodiment, some of the information among the configuration information for OCC application may be determined based on pre-set rules without signaling.

[0191] In step S1603, the base station transmits a DCI. That is, the base station transmits a DCI containing a UL grant. The UL grant may include at least one of information regarding UL resources for the terminal's PUSCH transmission, or information related to PUSCH repetition (e.g., information on whether to repeat transmission). In other words, the base station may transmit a DCI from the base station containing at least one of information regarding UL resources for PUSCH transmission or information related to PUSCH repetition. According to one embodiment, the DCI may further include at least one of information regarding OCC, information regarding the placement of UCI, or information regarding power boosting. Additionally, the DCI may include information directing the transmission of UCI.

[0192] In step S1605, the base station receives UL data and UCI based on OCC. The base station receives UL data multiplied by OCC in multiple slots and can extract UL data of a specific terminal using OCC. At this time, in at least one slot, signal(s) containing UCI may be multiplexed with signals containing UL data. Here, the UCI may be a UCI indicated by DCI, or may include a UCI triggered by a separate signaling (e.g., CG signaling).

[0193]

[0194] [Example #1] A method for transmitting UCI within an OCC group between multiplexed terminals based on inter-slot OCC at a frequency less than or equal to the number of data repetitions (e.g., 1 time).

[0195]

[0196] FIG. 17 illustrates an example of a procedure for transmitting a UCI in a portion of slots in which UL data is repeated in a wireless communication system according to one embodiment of the present disclosure. FIG. 17 illustrates a method performed by a terminal.

[0197] Referring to FIG. 17, in step S1703, the terminal determines at least one slot for UCI transmission among the slots for repetitive transmission. At least one slot may be configured or directed by the base station or determined based on a predefined rule. For example, one of the multiple slots for OCC application may be determined as a slot for UCI transmission.

[0198] In step S1703, the terminal transmits UCI and UL data in at least one determined slot. The terminal may map a signal containing UCI to REs allocated for UCI and a signal containing UL data to REs allocated for UL data. Accordingly, at least one M-symbol containing UCI and UL data is transmitted in at least one determined slot.

[0199] In step S1705, the terminal transmits UL data in the remaining slot(s). The terminal transmits UL data in the remaining slot(s), excluding at least one slot where the UCI is multiplexed among the slots for repeated transmission. The UL data transmitted in the remaining slot(s) is identical to the UL data transmitted in the slot where the UCI is multiplexed, and is transmitted after being multiplied by the weight of the OCC. At this time, according to one embodiment, in the remaining slot(s), some REs may be processed as empty by puncturing. In other words, the remaining slot(s) may contain at least one empty RE. The at least one empty RE may be placed in the same location as the RE(s) occupied by the UCI in the slot where the UCI is multiplexed.

[0200]

[0201] FIGS. 18a and 18b illustrate an example in which a slot-to-slot OCC is applied to a PUSCH including a UCI in a wireless communication system according to one embodiment of the present disclosure. FIG. 18a shows an example for an OCC length of 2, and FIG. 18b shows an example for an OCC length of 4.

[0202] Referring to FIG. 18a and FIG. 18b, according to one embodiment, each terminal multiplexed based on OCC transmits a UCI in one slot among the slots in the OCC group and does not transmit a UCI in the remaining slots. Each terminal may not use an RE corresponding to a UCI in the remaining slots among the slots in the OCC group, excluding the slot carrying its own UCI. In other words, the RE is an empty RE, and a modulated symbol having a value of 0+j0 is mapped to the RE.

[0203] In the above-described embodiment, the slot in which each terminal transmits the UCI (hereinafter referred to as the 'UCI transmission slot') may be configured by the base station through DCI, MAC CE, or RRC signaling. In other words, the base station may configure how many slots after the slot in which the OCC group starts (e.g., slot N) the UCI is transmitted. Alternatively, according to another embodiment, the UCI transmission slot may be indicated by being associated with other configuration values. When the UCI transmission slot is associated with other configuration values, the operation of the terminal is as shown in FIG. 19 below.

[0204]

[0205] FIG. 19 illustrates an example of a procedure for determining a slot for transmitting UL data to which OCC is applied and a UCI that is multiplexed in a wireless communication system according to one embodiment of the present disclosure. FIG. 19 illustrates a method performed by a terminal.

[0206] Referring to FIG. 19, in step S1901, the terminal receives signaling related to a resource to which OCC is applied. The resource to which OCC is applied includes slots for PUSCH repetition. The signaling may include information about signals transmitted in the slots, information about the OCC, or information about a UCI multiplexed with UL data. Specifically, the signaling may include at least one of the length of the OCC, a DMRS port number related to UL transmission, and an OCC sequence index.

[0207] In step S1903, the terminal determines a slot for UCI transmission based on information included in the signaling. The terminal may determine a slot for UCI transmission based on the relationship between the information included in the signaling and the slot for UCI transmission. For example, the relationship may be predefined by rules or a mapping table, or configured by a separate signaling.

[0208]

[0209] More specific embodiments regarding how the UCI transmission slot is associated with other configuration values ​​are described below.

[0210] According to one embodiment, a UCI transmission slot may be indicated based on a DMRS port number. That is, a UCI transmission slot may be associated with a DMRS port number. In this case, a base station may indicate a UCI transmission slot using a DMRS port number. For example, as shown in [Table 13], the location of a UCI transmission slot may be indicated based on the association between a DMRS port number and the location of a UCI transmission slot.

[0211] DMRA port number OCC length = 2 UCI transmission slot OCC length = 4 UCI transmission slot 0+0+01+0+12+1+23+1+34+0+05+0+16+1+27+1+3

[0212] The reference slot of the UCI transmission slot values ​​presented in [Table 13] can be defined as the slot where the corresponding OCC transmission starts. For example, in the case of FIGS. 18a and FIGS. 18b, slot N is the reference slot.

[0213] Information such as [Table 13] may be specified in the standard specification document. Alternatively, information identical or similar to [Table 13] may be configured for the terminal through RRC signaling. Alternatively, a default setting may be specified in the standard specification document in a form similar to [Table 13], and the base station may modify the mapping relationship between the DMRS port number and the UCI transmission slot through additional RRC signaling.

[0214] However, [Table 13] is merely an example, and the specific values ​​and ranges of DMRS port numbers may be defined differently depending on various embodiments. Additionally, mapping tables of different values ​​may be defined depending on the DMRS configuration type.

[0215]

[0216] According to one embodiment, a UCI transmission slot may be indicated based on an OCC sequence or an OCC sequence index. That is, a UCI transmission slot may be associated with an OCC sequence or an OCC sequence index. In this case, a base station may indicate the UCI transmission slot through the OCC sequence or an OCC sequence index. For example, based on an association such as [Table 14], a base station may indicate the location of the UCI transmission slot using the OCC sequence or an OCC sequence index.

[0217] OCC length OCC sequence index (OCC sequence) UCI ​​transfer slot 20 [+1 +1]+01 [+1 -1]+1 40 [+1 +1 +1 +1]+01 [+1 +1 -1 -1]+1 2 [+1 -1 +1 -1]+2 3 [+1 -1 -1 +1]+3

[0218] The reference slot for the UCI transmission slot values ​​exemplified in [Table 14] may be the slot where the corresponding OCC transmission starts. For example, in the case of FIGS. 18a and FIGS. 18b, slot N is the reference slot.

[0219] Information such as [Table 14] may be specified in the standard specification document. Alternatively, information identical or similar to [Table 14] may be configured for the terminal through RRC signaling. Alternatively, a default setting may be specified in the standard specification document in a form similar to [Table 14], and the base station may modify the mapping relationship between the OCC sequence or OCC sequence index and the UCI transmission slot through additional RRC signaling.

[0220]

[0221] [Example #2] A method for transmitting the UCI only once within an OCC group between multiplexed terminals based on inter-slot OCC, and applying power boost to M-symbols that do not contain the UCI.

[0222]

[0223] FIG. 20 illustrates an example of a procedure for performing power boosting on UL data to which OCC is applied in a wireless communication system according to one embodiment of the present disclosure. FIG. 20 illustrates a method performed by a terminal.

[0224] Referring to FIG. 20, in step S2001, the terminal determines at least one slot for UCI transmission among the slots for repetitive transmission. At least one slot may be configured or directed by the base station or determined based on a predefined rule. For example, one of the multiple slots for OCC application may be determined as a slot for UCI transmission.

[0225] In step S2003, the terminal determines a power boosting value to be applied to the remaining slot(s) other than at least one determined slot. For example, the power boosting value may be determined based on the amount of resources allocated for the UCI. That is, the power boosting value may be determined based on the number of REs allocated for the UCI.

[0226] In step S2005, the terminal transmits data with power boosting. Specifically, the terminal may apply power boosting to data in slots where the UCI is not transmitted, compared to slots where the UCI is transmitted. That is, the remaining power equal to the power allocated to the UCI in slots where the UCI is transmitted may be used for data in slots where the UCI is not transmitted.

[0227]

[0228] As described above, Example #2 basically includes the following additional operation in addition to the operation according to Example #1. That is, Example #2 is identical to Example #1 in the method of transmitting the UCI and further includes the following power boosting operation.

[0229] FIGS. 21a and 21b illustrate examples in which slot-to-slot OCC and power boosting are applied to a PUSCH containing a UCI in a wireless communication system according to one embodiment of the present disclosure. FIGS. 21a and 21b show power boosting for an M-symbol according to Example #2. FIG. 21a shows an example for an OCC length of 2, and FIG. 21 shows an example for an OCC length of 4.

[0230] In the case of Example #1, UCI and data are transmitted in the UCI transmission slot, and only data is transmitted in the slot where UCI is not transmitted (hereinafter 'non-UCI transmission slot') by puncturing the resource corresponding to the UCI. On the other hand, in the case of Example #2, for an RE containing PUSCH data of an M-symbol corresponding to the non-UCI transmission slot (e.g., UL transmission that is not UCI), the terminal can perform power boosting.

[0231] M-symbols are classified into symbols for transmitting UCI and PUSCH data together, and symbols for puncturing REs corresponding to the UCI and transmitting only PUSCH data. The former symbol(s) are processed in the same manner as in Example #1. In the case of the latter symbol containing punctured REs, since the magnitude of the transmit power is reduced by the number of punctured RE(s), it is possible to apply additional power boosting to the remaining PUSCH data REs. For example, for a terminal allocated 1 RB, if 6 out of 12 REs in the punctured M-symbol are punctured, there is a surplus of transmit power available to apply 2x boosting (e.g., 3 dB boosting) to the PUSCH data. In this case, the terminal can boost the transmit power of the PUSCH data by 2x boosting or less.

[0232] When OCC length 4 is applied as in Fig. 21b, UE3 can apply transmit power boosting to M punctured symbols (e.g., the third symbols in slot N, slot N+1, and slot N+3).

[0233] The aforementioned transmission power boosting factor can be determined through various methods as follows. In the following description, X and Y are defined as shown in [Equation 1] below.

[0234] [Mathematical Formula 1]

[0235] X = N Punctured_RE / N RE

[0236] Y = N RE / (N RE - N Punctured_RE

[0237] In [Mathematical Formula 1], N Punctured_RE is the number of punctured REs, N RE represents the number of REs.

[0238] According to one embodiment, power boosting can be performed by a value of Y. That is, the power of a modulated complex signal mapped to a PUSCH data RE in an M-symbol containing punctured REs is boosted by a factor of sqrt(Y).

[0239] According to one embodiment, power boosting may be performed based on Y by Z = min(Y, Y_upperbound). That is, the magnitude of the modulated complex signal mapped to the PUSCH data RE within the M-symbol containing the punctured REs is boosted by sqrt(Z) = sqrt(min(Y, Y_upperbound)) times. Here, Y_upperbound may be a constant value specified in the specification or may be configured by RRC signaling.

[0240] Alternatively, similarly, the coefficient value multiplied by the modulated complex signal mapped to the PUSCH data RE within the M-symbol containing the punctured REs can be obtained through Z = min(sqrt(Y), Z_upperbound), where Z_upperbound is a constant value specified in the specification or can be configured by RRC signaling.

[0241] According to one embodiment, power boosting can be performed based on X according to a mapping relationship such as [Table 15]. For example, in an M-symbol containing punctured REs, 13 out of 24 REs are punctured, and since the corresponding Y value is 2, power boosting of 3dB can be performed, which is twice the signal mapped to the PUSCH data RE of the corresponding symbol. In other words, the terminal can transmit the signal after multiplying the modulated complex signal mapped to the PUSCH data RE of the corresponding symbol by sqrt(2).

[0242] XYX < 1 / 61 (no boosting)

[0243]

[0244] The methods according to the present disclosure may be implemented in the form of program instructions that can be executed through various computer means and recorded on a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc., alone or in combination. The program instructions recorded on the computer-readable medium may be those specifically designed and configured for the present disclosure, or they may be those known and available to those skilled in the art of computer software.

[0245] Examples of computer-readable media include hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, and flash memory. Examples of program instructions include machine code, such as that produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter, etc.

[0246] Some aspects of the present disclosure have been described in the context of a device, but may also be described according to 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 according to 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 of the most important method steps may be performed by such a device.

[0247] 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 this disclosure. A field-programmable gate array may operate with a microprocessor to perform one of the methods described in this disclosure. Generally, it is preferable that the methods be performed by some hardware device.

[0248] Although the present invention has been described with reference to the embodiments above, those skilled in the art will understand that various modifications and changes can be made to the present disclosure without departing from the spirit and scope of the disclosure as set forth in the following claims.

Claims

1. In a method of operation of a terminal in a wireless communication system, Receiving configuration information for applying the OCC (orthogonal cover code) in the UL (uplink); Receiving DCI (downlink control information) including UL grants; Generating UL data and UCI (uplink control information); Applying OCC to signals included in a plurality of slots containing symbols including the above UL data; and Includes transmitting the above signals, A method in which at least one of the plurality of slots is used to transmit a signal including the UCI.

2. In Claim 1, Among the plurality of slots above, at least one slot that does not include the UCI includes at least one punctured resource, and A method in which at least one punctured resource has the same time-frequency position as at least one resource mapped to the UCI within the corresponding slot.

3. In Claim 1, A method further comprising determining the position of a slot containing the UCI among the plurality of slots.

4. In Claim 1, A method further comprising receiving information indicating the location of a slot including the UCI among the plurality of slots.

5. In Claim 4, Information indicating the position of a slot including the above UCI includes a value corresponding to a position relative to a reference slot among the plurality of slots.

6. In Claim 4, A method in which information indicating the location of a slot including the above UCI is indicated based on the association with other parameters related to UL transmission.

7. In Claim 4, A method in which information indicating the location of a slot including the above UCI is implicitly indicated using a DMRS (demodulation reference signal) port number, an OCC sequence, or an OCC sequence index.

8. In Claim 1, A method further comprising applying power boosting to a UL signal transmitted in a symbol including at least one punctured resource.

9. In Claim 8, A method in which the value of the power boosting is determined based on the number of REs punctured in the symbol and the number of REs included in the symbol.

10. In Claim 8, A method in which the value of the power boosting is determined as one of a value determined based on the number of REs punctured in the symbol and the number of REs included in the symbol, and an upper limit value.

11. In a method of operation of a base station in a wireless communication system, Transmitting configuration information for applying OCC (orthogonal cover code) in the UL (uplink); Transmitting DCI (downlink control information) including a UL grant; and Based on the above OCC, it includes receiving UL data and UCI (uplink control information) through a plurality of slots, and A method in which at least one of the plurality of slots is used to transmit a signal including the UCI.

12. In Claim 11, Among the plurality of slots above, at least one slot that does not include the UCI includes at least one punctured resource, and A method in which at least one punctured resource has the same time-frequency position as at least one resource mapped to the UCI within the corresponding slot.

13. In Claim 11, A method further comprising determining the position of a slot containing the UCI among the plurality of slots.

14. In Claim 11, A method further comprising transmitting information indicating the location of a slot including the UCI among the plurality of slots.

15. In Claim 14, Information indicating the position of a slot including the above UCI includes a value corresponding to a position relative to a reference slot among the plurality of slots.

16. In Claim 14, A method in which information indicating the location of a slot including the above UCI is indicated based on the association with other parameters related to UL transmission.

17. In Claim 14, A method in which information indicating the location of a slot including the above UCI is implicitly indicated using a DMRS (demodulation reference signal) port number, an OCC sequence, or an OCC sequence index.

18. In a terminal of a wireless communication system, At least one transmitter / receiver; At least one processor; and It includes at least one memory connected to the above-mentioned at least one processor to enable operation, and storing instructions that control the terminal to perform operations when executed by the processor. The above operations are, Receiving configuration information for applying the OCC (orthogonal cover code) in the UL (uplink); Receiving DCI (downlink control information) including UL grants; Generating UL data and UCI (uplink control information); Applying OCC to signals included in a plurality of slots containing symbols including the above UL data; and Includes transmitting the above signals, At least one of the plurality of slots is a terminal used to transmit a signal including the UCI.

19. In a non-terrestrial network (NTN) base station in a wireless communication system, At least one transmitter / receiver; At least one processor; and It includes at least one memory connected to the above-mentioned at least one processor to enable operation, and storing instructions that control the terminal to perform operations when executed by the processor. The above operations are, Transmitting configuration information for applying OCC (orthogonal cover code) in the UL (uplink); Transmitting DCI (downlink control information) including a UL grant; and Based on the above OCC, it includes receiving UL data and UCI (uplink control information) through a plurality of slots, and At least one of the plurality of slots is an NTN base station used to transmit a signal including the UCI.

Images