Flexible channel coding switching for non-terrestrial communication

Abstract

Proposed is an operation method of a first device (100) in a wireless communication system. The method comprises the steps of: receiving, from a base station (300), base station-to-device control information including information related to a channel coding scheme; receiving a base station-to-device transmission from the base station (300); and attempting to decode first data related to the base station-to-device transmission on the basis of the channel coding scheme, wherein the first data may be related to a coded bit after encoding using the channel coding scheme.

Description

Flexible channel coding switching for non-terrestrial communication

[0001] The present disclosure relates to a wireless communication system.

[0002] 5G NR is a successor technology to LTE (long term evolution) and is a new clean-slate type mobile communication system with characteristics such as high performance, low latency, and high availability. 5G NR can utilize all available spectrum resources, ranging from low frequency bands below 1 GHz to mid-frequency bands from 1 GHz to 10 GHz, and high frequency (millimeter wave) bands above 24 GHz.

[0003] The 6G (wireless communication) system aims for (i) very high data rates per device, (ii) a very large number of connected devices, (iii) global connectivity, (iv) very low latency, (v) reduced energy consumption of battery-free IoT (internet of things) devices, (vi) ultra-reliable connectivity, and (vii) connected intelligence with machine learning capabilities. The vision of the 6G system can be in four aspects: intelligent connectivity, deep connectivity, holographic connectivity, and ubiquitous connectivity, and the 6G system can satisfy requirements such as those shown in Table 1 below. For example, Table 1 may represent an example of the requirements for a 6G system.

[0004] Maximum data rate per device 1 Tbps E2E latency 1 ms Maximum spectral efficiency 100 bps / Hz Mobility support up to 1000 km / hr Satellite integration Fully AI Fully autonomous driving Fully XR Fully haptic communication Fully

[0005] According to one embodiment of the present disclosure, a method that can be performed by a first device may be provided. For example, the method comprises: receiving base station-to-device control information including information related to a channel coding scheme from a base station; receiving a base station-to-device transmission from the base station; obtaining first data related to the base station-to-device transmission; and attempting to decode the first data based on the channel coding scheme, wherein the first data may be related to coded bits after encoding using the channel coding scheme.

[0006] According to one embodiment of the present disclosure, a first device may be provided. For example, the first device may include: at least one transceiver; at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, based on the instructions being executed by the at least one processor, the first device may: receive base station-to-device control information including information related to a channel coding scheme from a base station; receive a base station-to-device transmission from the base station; obtain first data related to the base station-to-device transmission; and attempt to decode the first data based on the channel coding scheme, wherein the first data may be related to coded bits after encoding using the channel coding scheme.

[0007] According to one embodiment of the present disclosure, a processing device configured to control a first device may be provided. For example, the first device may include: at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, based on the instructions being executed by the at least one processor, the first device may: receive base station-to-device control information including information related to a channel coding scheme from a base station; receive a base station-to-device transmission from the base station; acquire first data related to the base station-to-device transmission; and attempt to decode the first data based on the channel coding scheme, wherein the first data may be related to coded bits after encoding using the channel coding scheme.

[0008] According to one embodiment of the present disclosure, a non-transient computer-readable storage medium recording instructions may be provided. For example, when the instructions are executed, the first device may: receive base station-to-device control information including information related to a channel coding scheme from a base station; receive a base station-to-device transmission from the base station; obtain first data related to the base station-to-device transmission; and attempt to decode the first data based on the channel coding scheme, wherein the first data may be related to coded bits after encoding using the channel coding scheme.

[0009] According to one embodiment of the present disclosure, a method that can be performed by a second device may be provided. For example, the method may include: transmitting base station-to-device control information including information related to a channel coding scheme to a first device; obtaining coded bits based on an encoding using the channel coding scheme; and performing a transmission operation for the coded bits to the first device.

[0010] According to one embodiment of the present disclosure, a second device may be provided. For example, the second device may include: at least one transceiver; at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, based on the instructions being executed by the at least one processor, the second device may cause: to transmit base station-to-device control information including information related to a channel coding scheme to the first device; to obtain coded bits based on an encoding using the channel coding scheme; and to cause the first device to perform a transmission operation on the coded bits.

[0011] FIG. 1 illustrates a communication procedure between devices according to one embodiment of the present disclosure.

[0012] FIG. 2 shows a radio protocol architecture according to one embodiment of the present disclosure.

[0013] FIG. 3 shows the structure of a wireless frame according to one embodiment of the present disclosure.

[0014] FIG. 4 shows a slot structure of a frame according to one embodiment of the present disclosure.

[0015] FIG. 5 shows an example of a BWP according to one embodiment of the present disclosure.

[0016] FIG. 6 shows a communication structure that can be provided in a 6G system according to one embodiment of the present disclosure.

[0017] FIG. 7 illustrates an example of a communication scenario based on a 6G system according to an embodiment of the present disclosure.

[0018] FIG. 8 illustrates a transparent payload-based scenario of a non-ground network according to one embodiment of the present disclosure.

[0019] FIG. 9 illustrates a scenario based on a regenerative payload of a non-terrestrial network according to one embodiment of the present disclosure.

[0020] FIG. 10 illustrates a method for performing HARQ combining according to one embodiment of the present disclosure.

[0021] FIG. 11 illustrates a method in which base station-to-device control information (e.g., DCI) indicates a coding method according to one embodiment of the present disclosure.

[0022] FIG. 12 illustrates the procedure of a method that can be performed by a first device according to one embodiment of the present disclosure.

[0023] FIG. 13 illustrates the procedure of a method that can be performed by a second device according to one embodiment of the present disclosure.

[0024] FIG. 14 shows a communication system (1) according to one embodiment of the present disclosure.

[0025] FIG. 15 shows a wireless device according to one embodiment of the present disclosure.

[0026] FIG. 16 shows a signal processing circuit for a transmission signal according to one embodiment of the present disclosure.

[0027] FIG. 17 shows a wireless device according to one embodiment of the present disclosure.

[0028] FIG. 18 shows a portable device according to one embodiment of the present disclosure.

[0029] In the present disclosure, "A or B" may mean "only A," "only B," or "both A and B." Alternatively, in the present disclosure, "A or B" may be interpreted as "A and / or B." For example, in the present disclosure, "A, B or C" may mean "only A," "only B," "only C," or "any combination of A, B and C."

[0030] A slash ( / ) or a comma used in the present disclosure may mean "and / or." For example, "A / B" may mean "A and / or B." Accordingly, "A / B" may mean "only A," "only B," or "both A and B." For example, "A, B, C" may mean "A, B or C."

[0031] In the present disclosure, "at least one of A and B" may mean "only A," "only B," or "both A and B." Additionally, in the present disclosure, the expressions "at least one of A or B" or "at least one of A and / or B" may be interpreted as synonymous with "at least one of A and B."

[0032] Additionally, in the present disclosure, "at least one of A, B and C" may mean "only A," "only B," "only C," or "any combination of A, B and C." Additionally, "at least one of A, B or C" or "at least one of A, B and / or C" may mean "at least one of A, B and C."

[0033] Additionally, parentheses used in the present disclosure may mean "for example." Specifically, when indicated as "control information (PDCCH)," "PDCCH" may be proposed as an example of "control information." In other words, the "control information" of the present disclosure is not limited to "PDCCH," and "PDCCH" may be proposed as an example of "control information." Furthermore, even when indicated as "control information (e.g., PDCCH)," "PDCCH" may be proposed as an example of "control information."

[0034] In the following explanation, 'when, if, in case of' can be replaced with 'based on'.

[0035] In the present disclosure, the device acquiring information may include the information being (pre)set to the device, the information being received by the device from another entity, and the device generating the information.

[0036] Technical features described individually within one drawing in this disclosure may be implemented individually or simultaneously.

[0037] In the present disclosure, a higher layer parameter may be a parameter that is set for the terminal, pre-set, or pre-defined. For example, a base station or a network may transmit the higher layer parameter to the terminal. For example, the higher layer parameter may be transmitted via radio resource control (RRC) signaling or medium access control (MAC) signaling.

[0038] In the present disclosure, "configured or defined" may be interpreted as being configured or pre-configured to a device through pre-defined signaling from a base station or network (e.g., SIB, MAC, RRC, DCI (downlink control information), etc.). In the present disclosure, "configured or defined" may be interpreted as being configured or pre-configured to a device through pre-defined signaling from another device (e.g., MAC, RRC, SCI (sidelink control information), control information signaled between devices, etc.). In the present disclosure, "configured or defined" may be interpreted as being pre-configured to a device.

[0039] In the present disclosure, user equipment (UE) may refer to a device, a portable device, a wireless device, etc. In the present disclosure, a base station (BS) may refer to a radio access network (RAN) node, a non-terrestrial network (NTN) cell / node, a transmission reception point (TRP), a network, an integrated access and backhaul (IAB) node, a device, a portable device, a wireless device, etc.

[0040] The technology proposed in this disclosure can be used in various wireless communication systems such as CDMA (code division multiple access), FDMA (frequency division multiple access), TDMA (time division multiple access), OFDMA (orthogonal frequency division multiple access), and SC-FDMA (single carrier frequency division multiple access). CDMA can be implemented with wireless technologies such as UTRA (universal terrestrial radio access) or CDMA2000. TDMA can be implemented with wireless technologies such as GSM (global system for mobile communications) / GPRS (general packet radio service) / EDGE (enhanced data rates for GSM evolution). OFDMA can be implemented with wireless technologies such as IEEE (institute of electrical and electronics engineers) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, E-UTRA (evolved UTRA), LTE (long term evolution), and 5G NR.

[0041] The technology proposed in this disclosure can be implemented as 6G wireless technology and can be applied to various 6G systems. For example, 6G systems may have key factors such as eMBB (enhanced mobile broadband), URLLC (ultra-reliable low latency communications), mMTC (massive machine-type communication), AI (artificial intelligence) integrated communication, tactile internet, high throughput, high network capacity, high energy efficiency, low backhaul and access network congestion, and enhanced data security.

[0042] FIG. 1 illustrates a communication procedure between devices according to one embodiment of the present disclosure. The embodiment of FIG. 1 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of the embodiments may be omitted.

[0043] Referring to FIG. 1, in step S101, the first device and the second device can perform synchronization. For example, the first device may be a terminal and / or at least one of the devices proposed in the present disclosure. For example, the second device may be a base station, a network, a RAN node, an NTN node / cell, a TRP, a terminal and / or at least one of the devices proposed in the present disclosure. For example, the first device may perform an initial cell search operation. For example, the first device may detect at least one synchronization signal transmitted according to a rule predefined by the second device. Here, for example, the synchronization signal may include a plurality of synchronization signals (e.g., primary synchronization signal, secondary synchronization signal, etc.) classified according to structure or use. Through this, the first device can identify the boundaries of the frame, subframe, time unit, slot, and / or symbol of the second device, and the first device can obtain information about the second device (e.g., cell identifier).

[0044] In step S103, the first device may obtain system information transmitted by the second device. For example, the system information may include information related to the attributes, characteristics, and / or capabilities of the second device that are necessary to connect to the second device and use the service. For example, the system information may be classified according to content (e.g., whether it is essential for connection), transmission structure (e.g., the channel used, whether it is provided on-demand), etc. For example, the system information may be classified into a master information block (MIB) and a system information block (SIB). For example, if necessary, the first device may transmit a signal requesting the system information prior to receiving the system information. For example, the request and provision of the system information may be performed after a random access procedure described later.

[0045] In step S105, the first device and the second device may perform a random access procedure. For example, the first device may transmit and / or receive at least one message for the random access procedure (e.g., random access preamble, random access response message, etc.) based on information related to the random access channel of the second device obtained through system information (e.g., channel location, channel structure, structure of supported preamble, etc.). For example, the first device may transmit a preamble (e.g., Msg1) through the random access channel, and the first device may receive a random access response message (e.g., Msg2). The first device may transmit a message (e.g., Msg3) containing information related to the first device (e.g., identification information) to the second device using scheduling information included in the random access response message, and the first device may receive a message (e.g., Msg4) for contention resolution and / or connection establishment. For example, Msg1 and Msg3 can be transmitted and received as a single message (e.g., MsgA), and / or Msg2 and Msg4 can be transmitted and received as a single message (e.g., MsgB).

[0046] In step S107, the first device and the second device may perform signaling of control information. Here, for example, the control information may be defined in various layers, such as a layer controlling the connection (e.g., a radio resource control (RRC) layer), a layer handling mapping between a logical channel and a transmission channel (e.g., a media access control (MAC) layer), and a layer handling a physical channel (e.g., a physical (PHY) layer). For example, the first device and the second device may perform at least one of signaling to establish a connection, signaling to determine settings related to communication, and / or signaling to indicate allocated resources. For example, the control information may be signaled / transmitted through a control channel. For example, the control information and / or the control channel may be used to schedule at least one of data, a data channel (e.g., a shared channel), and / or control information on the data channel.

[0047] In step S109, the first device and the second device may transmit and / or receive data. For example, the first device and the second device may process data based on signaling of control information and transmit and / or receive it. For example, when transmitting data, the first device or the second device may perform at least one of channel encoding, rate matching, scrambling, constellation mapping, layer mapping, waveform modulation, antenna mapping, and / or resource mapping on the information bits. For example, when receiving data, the first device or the second device may perform at least one of signal extraction from resources, antenna-specific waveform demodulation, signal placement considering layer mapping, constellation demapping, descrambling, and / or channel decoding.

[0048] For example, the layers of the radio interface protocol between the first device and the second device can be classified into L1 (layer 1), L2 (layer 2), L3 (layer 3), etc. For example, the physical layer belonging to layer 1 can provide an information transfer service using a physical channel, and the radio resource control (RRC) layer located at layer 3 can perform the role of controlling radio resources between the first device and the second device. To this end, for example, the RRC layer can exchange RRC messages between the first device and the second device.

[0049] FIG. 2 illustrates a radio protocol architecture according to one embodiment of the present disclosure. The embodiment of FIG. 2 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of said embodiment may be omitted. For example, FIG. 2(a) may represent a radio protocol stack in the user plane for uplink communication or downlink communication, and FIG. 2(b) may represent a radio protocol stack in the control plane for uplink communication or downlink communication. For example, FIG. 2(c) may represent a radio protocol stack in the user plane for device-to-device communication, and FIG. 2(d) may represent a radio protocol stack in the control plane for device-to-device communication.

[0050] For example, the physical layer can provide information transmission services to upper layers using a physical channel. For example, the physical layer can be connected to the upper layer, the MAC (medium access control) layer, through a transport channel. For example, data can be transmitted between the MAC layer and the physical layer through a transport channel. For example, transport channels can be classified according to how and with what characteristics data is transmitted through a wireless interface. For example, data can be transmitted through a physical channel between different physical layers, for example, between the physical layers of a first device and a second device. For example, the physical channel can be modulated using the OFDM (orthogonal frequency division multiplexing) method, and time and frequency can be utilized as wireless resources.

[0051] For example, the MAC layer can provide services to the upper layer, the RLC (radio link control) layer, through logical channels. For example, the MAC layer can provide mapping functions from multiple logical channels to multiple transmission channels. For example, the MAC layer can provide logical channel multiplexing functions through mapping from multiple logical channels to a single transmission channel. For example, the MAC sublayer can provide data transmission services over logical channels.

[0052] For example, the RLC layer can perform concatenation, segmentation, and reassembly of RLC service data units (SDUs). For example, to guarantee various quality of service (QoS) required by a radio bearer (RB), the RLC layer can provide three modes of operation: transparent mode (TM), unacknowledged mode (UM), and acknowledged mode (AM). For example, AM RLC can provide error correction through automatic repeat requests (ARQ).

[0053] For example, the RRC (radio resource control) layer may be defined only in the control plane. For example, the RRC layer may be responsible for controlling logical channels, transmission channels, and physical channels in relation to the configuration, reconfiguration, and release of radio bearers. For example, RB may refer to a logical path provided by the first layer (e.g., physical layer) and the second layer (e.g., MAC layer, RLC layer, PDCP (packet data convergence protocol) layer, SDAP (service data adaptation protocol) layer, etc.) for data transfer between a first device and a second device.

[0054] For example, the functions of the PDCP layer in the user plane may include the delivery of user data, header compression, and ciphering. For example, the functions of the PDCP layer in the control plane may include the delivery of control plane data and encryption / integrity protection.

[0055] For example, the establishment of an RB can mean the process of defining the characteristics of the wireless protocol layer and channel to provide specific services, and setting each specific parameter and method of operation. For example, an RB can be divided into two types: an SRB (signaling radio bearer) and a DRB (data radio bearer). For example, an SRB can be used as a channel to transmit RRC messages in the control plane, and a DRB can be used as a channel to transmit user data in the user plane.

[0056] For example, a downlink transmission channel may include at least one of a broadcast channel (BCH) that transmits system information and / or a shared channel (SCH) that transmits user traffic or control messages. For example, traffic or control messages for a downlink multicast or broadcast service may be transmitted via a downlink SCH or via a separate multicast channel (MCH). Meanwhile, an uplink transmission channel may include at least one of a random access channel (RACH) that transmits initial control messages and / or a shared channel (SCH) that transmits user traffic or control messages. For example, a logical channel located above the transmission channel and mapped to the transmission channel may include at least one of a broadcast control channel (BCCH), a paging control channel (PCCH), a common control channel (CCCH), a multicast control channel (MCCH), and / or a multicast traffic channel (MTCH).

[0057] FIG. 3 shows the structure of a wireless frame according to one embodiment of the present disclosure. The embodiment of FIG. 3 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0058] Referring to FIG. 3, radio frames may be used, for example, in uplink transmission, downlink transmission, and / or device-to-device transmission. For example, a radio frame may have a length of 10 ms and may be defined as two 5 ms half-frames (HF). For example, a half-frame may contain five 1 ms subframes (SF). For example, a subframe may be divided into one or more slots, and the number of slots within a subframe may be determined by subcarrier spacing (SCS). For example, each slot may contain 12 or 14 OFDM(A) symbols according to a cyclic prefix (CP).

[0059] For example, when normal CP is used, each slot may contain 14 symbols. For example, when extended CP is used, each slot may contain 12 symbols. Here, for example, the symbols may include OFDM symbols (or CP-OFDM symbols) and SC-FDMA (single carrier-FDMA) symbols (or DFT-s-OFDM (Discrete Fourier Transform-spread-OFDM) symbols).

[0060] Table 2 below shows the number of symbols per slot (N) according to the SCS setting (u) when Normal CP or Extended CP is used. slot symb ), number of slots per frame (N frame,u slot ) and the number of slots per subframe (N subframe,u slot) exemplifies.

[0061] CP Type SCS (15*2 u )N slot symb N frame,u slot N subframe,u slot Normal CP 15kHz (u=0) 1410 130kHz (u=1) 1420 260kHz (u=2) 1440 4120kHz (u=3) 1480 8240kHz (u=4) 14160 16 Extended CP 60kHz (u=2) 1240 4

[0062] For example, OFDM(A) numerology (e.g., SCS, CP length, etc.) may be configured differently among multiple cells merged into a single terminal. Accordingly, the (absolute time) interval of a time resource (e.g., subframe, slot, or TTI (transmit time interval)) composed of the same number of symbols may be configured differently among the merged cells. For example, in the present disclosure, time resources such as subframes, slots, TTI, etc. may be referred to as time units.

[0063] For example, multiple numerologies or SCSs may be supported to support various services. For example, if the SCS is 15 kHz, a wide area in traditional cellular bands may be supported, and if the SCS is 30 kHz / 60 kHz, dense-urban, lower latency, and wider carrier bandwidth may be supported. For example, if the SCS is 60 kHz or higher, a bandwidth greater than 24.25 GHz may be supported to overcome phase noise.

[0064] FIG. 4 shows a slot structure of a frame according to one embodiment of the present disclosure. The embodiment of FIG. 4 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of the embodiments may be omitted.

[0065] Referring to FIG. 4, for example, a slot may include multiple symbols in the time domain. For example, a carrier may include multiple subcarriers in the frequency domain. For example, a resource block (RB) may be defined as multiple consecutive subcarriers in the frequency domain. For example, a bandwidth part (BWP) may be defined as multiple consecutive (P)RBs ((physical) resource blocks) in the frequency domain and may correspond to a single numerology (e.g., SCS, CP length, etc.). For example, a carrier may include up to N BWPs (where N is a positive integer). For example, data communication may be performed through an active BWP. For example, each element may be referred to as a resource element (RE) in a resource grid and may be mapped to a single complex symbol.

[0066] For example, a BWP can be a continuous set of PRBs in a given numerology. For example, a PRB can be selected from a continuous subset of common resource blocks (CRBs) for a given numerology on a given carrier.

[0067] For example, the BWP may be at least one of an active BWP, an initial BWP, and / or a default BWP. For example, the terminal may not monitor downlink radio link quality on DL BWPs other than the active DL BWP on the PCell (primary cell). For example, the terminal may not receive PDCCH (physical downlink control channel), PDSCH (physical downlink shared channel), or CSI-RS (channel state information-reference signal) (except for RRM (radio resource management)) outside of the active DL BWP. For example, the terminal may not trigger CSI (channel state information) reporting for an inactive DL BWP. For example, the terminal may not transmit PUCCH (physical uplink control channel) or PUSCH (physical uplink shared channel) outside of the active UL (uplink) BWP. For example, for the downlink, the initial BWP can be given as a consecutive set of resource blocks (RBs) for the remaining minimum system information (RMSI) CORESET (control resource set) (set by the physical broadcast channel (PBCH)). For example, for the uplink, the initial BWP can be given by the system information block (SIB) for the random access procedure. For example, the default BWP can be set by the upper layer. For example, the initial value of the default BWP can be the initial DL BWP.For energy saving, if the terminal fails to detect DCI (downlink control information) for a certain period, the terminal can switch the active BWP of the terminal to the default BWP.

[0068] In the present disclosure, PSCCH may be replaced with a control channel, a physical control channel, a control channel associated with a sidelink, a physical control channel associated with a sidelink, a physical control channel between devices, etc. In the present disclosure, PSSCH may be replaced with a shared channel, a physical shared channel, a shared channel associated with a sidelink, a physical shared channel associated with a sidelink, a physical shared channel between devices, etc. For example, SL communication may be replaced with device-to-device communication. For example, in terms referring to various channels and / or signals associated with SL communication, the SL portion may be replaced with "between devices".

[0069] In the present disclosure, PUCCH may be replaced with a control channel, a physical control channel, a control channel associated with an uplink, a physical control channel associated with an uplink, a device-to-base station physical control channel, a terminal-to-base station physical control channel, etc. In the present disclosure, PUSCH may be replaced with a shared channel, a physical shared channel, a shared channel associated with an uplink, a physical shared channel associated with an uplink, a device-to-base station physical shared channel, a terminal-to-base station physical shared channel, etc. For example, UL communication may be replaced with terminal-to-base station communication or device-to-base station communication. For example, in terms referring to various channels and / or signals associated with UL communication, the UL portion may be replaced with "device-to-base station" or "terminal-to-base station".

[0070] In the present disclosure, PDCCH may be replaced with a control channel, a physical control channel, a control channel associated with a downlink, a physical control channel associated with a downlink, a base station-to-device physical control channel, a base station-to-terminal physical control channel, etc. In the present disclosure, PDSCH may be replaced with a shared channel, a physical shared channel, a shared channel associated with a downlink, a physical shared channel associated with a downlink, a base station-to-device physical shared channel, a base station-to-terminal physical shared channel, etc. For example, DL communication may be replaced with base station-to-device communication or base station-to-terminal communication. For example, in terms referring to various channels and / or signals associated with DL communication, the DL portion may be replaced with "base station-to-device" or "base station-to-terminal".

[0071] FIG. 5 illustrates an example of a BWP according to an embodiment of the present disclosure. The embodiment of FIG. 5 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted. In the embodiment of FIG. 5, it is assumed that there are three BWPs.

[0072] Referring to FIG. 5, for example, a common resource block (CRB) may be a numbered carrier resource block from one end of the carrier band to the other, and a PRB may be a numbered resource block within each BWP. For example, point A may indicate a common reference point for the resource block grid.

[0073] For example, BWP is point A, offset from point A (N start BWP ) and bandwidth (N size BWPIt can be set by ). For example, point A may be an external reference point of the PRB of a carrier where the subcarrier 0 of all numerologies (e.g., all numerologies supported by the network in that carrier) are aligned. For example, offset may be the PRB interval between the lowest subcarrier in a given numerology and point A. For example, bandwidth may be the number of PRBs in a given numerology.

[0074] FIG. 6 illustrates a communication structure that can be provided in a 6G system according to one embodiment of the present disclosure. The embodiment of FIG. 6 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of said embodiments may be omitted.

[0075] As core implementation technologies for 6G systems, technologies such as artificial intelligence (AI), THz (Terahertz) communication, optical wireless technology, free space optical transmission (FSO) backhaul networks, massive MIMO (multiple input multiple output) technology, blockchain, 3D networking, quantum communication, unmanned aerial vehicles, cell-free communication, wireless information and energy transfer (WIET), integration of sensing and communication, integration of access backhaul networks, holographic beamforming, big data analysis, and large intelligent surface (LIS) can be adopted.

[0076] - Artificial Intelligence: Introducing AI into communications can streamline and enhance real-time data transmission. AI can determine how complex target tasks are performed using numerous analyses. For example, AI can increase efficiency and reduce processing latency. Time-consuming tasks such as handover, network selection, and resource scheduling can be performed instantly using AI. AI can also play a significant role in M2M, machine-to-human, and human-to-machine communication. Furthermore, AI can enable rapid communication in Brain-Computer Interfaces (BCI). AI-based communication systems can be supported by metamaterials, intelligent structures, intelligent networks, intelligent devices, intelligent cognitive radios, self-sustaining wireless networks, and machine learning.

[0077] - THz Communication: Data transmission rates can be increased by expanding bandwidth. This can be achieved by using sub-THz communication with wide bandwidth and applying advanced large-scale MIMO technology. THz waves, also known as sub-millimeter radiation, generally refer to a frequency band between 0.1 THz and 10 THz with corresponding wavelengths ranging from 0.03 mm to 3 mm. The 100 GHz-300 GHz band range (Sub-THz band) is considered the primary portion of the THz band for cellular communication. Adding the Sub-THz band to the mmWave band increases 6G cellular communication capacity. Among the defined THz bands, the 300 GHz-3 THz band is located in the far-infrared (IR) frequency band. Although the 300 GHz-3 THz band is part of the optical band, it lies at the boundary of the optical band and immediately following the RF band. Therefore, this 300 GHz-3 THz band exhibits similarities to RF. Key characteristics of THz communication include (i) widely available bandwidth to support very high data transmission rates, and (ii) high path loss occurring at high frequencies (highly directional antennas are indispensable). The narrow beam width generated by highly directional antennas reduces interference. The small wavelength of THz signals allows a much larger number of antenna elements to be integrated into devices and BSs operating in this band. This enables the use of advanced adaptive array technologies that can overcome range limitations.

[0078] - Large-scale MIMO technology

[0079] - Hologram beamforming (HBF)

[0080] - Optical wireless technology

[0081] - Free Space Optical Transmission Backhaul Network (FSO backhaul network)

[0082] - Quantum communication

[0083] - Cell-free communication

[0084] - Integration of wireless information and power transmission

[0085] - Integration of wireless communication and sensing

[0086] - Integrated access and backhaul network

[0087] - Big data analysis

[0088] - Reconfigurable intelligent metasurface

[0089] - Metaverse

[0090] - blockchain

[0091] - Advanced Air Mobility (AAM): AAM can be a broad concept encompassing Urban Air Mobility (UAM), Regional Air Mobility (RAM), and Uncrewed Aerial Systems (UAS). For example, AAM may include UAM, RAM, UAS, and UAVs (uncrewed aerial vehicles).

[0092] - Autonomous driving (self-driving): V2X (vehicle to everything), a core element of building autonomous driving infrastructure, refers to technologies that enable vehicles to communicate and share with various elements on the road to perform autonomous driving, such as wireless communication between vehicles (vehicle to vehicle, V2V) and between vehicles and infrastructure (vehicle to infrastructure, V2I).

[0093] - Non-terrestrial Network (NTN): An NTN may refer to a network or network segment that utilizes RF (radio frequency) resources mounted on a satellite (or UAS platform). The use of NTN services may be considered to secure wider coverage or to provide wireless communication services in locations where the installation of wireless communication base stations is difficult.

[0094] - Integrated Sensing and Communication (ISAC): Wireless sensing is a technology that uses radio frequencies to determine the instantaneous linear velocity, angle, distance (range), etc., of an object, thereby obtaining information about the characteristics of the environment and / or objects within the environment.

[0095] - Reconfigurable Intelligent Surface (RIS): An RIS can be used to manipulate and enhance signal propagation in a wireless communication environment. For example, an RIS can be composed of many small antennas or metasurfaces arranged on a surface, each of which can actively control the phase, amplitude, polarization, etc., of the reflected signal. For instance, an RIS can improve signal reception by controlling the path, phase, and / or strength of the propagating signal. For instance, power consumption can be very low because power is consumed only for controlling the phase and amplitude of the small antennas. For instance, since an RIS can be reconfigured to suit various environments, it can meet diverse communication requirements and operate effectively in dynamic network environments.

[0096] FIG. 7 illustrates an example of a communication scenario based on a 6G system according to an embodiment of the present disclosure. The embodiment of FIG. 7 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0097] Referring to FIG. 7, NTN communication can be performed based on a satellite network, HIBS (high-altitude platform stations (HAPS) as international mobile telecommunications (IMT) base stations (BS)), and an aeronautical communication-capable terminal (e.g., AAM). For example, to improve coverage, devices such as a satellite network, HIBS, and an aeronautical communication-capable terminal (e.g., AAM) can act as relays. For example, an AAM can communicate with a base station, a satellite network, etc., and / or an AAM can communicate directly with a terminal, another AAM, etc.

[0098] FIG. 8 illustrates a transparent payload-based scenario of a non-terrestrial network according to one embodiment of the present disclosure. The embodiment of FIG. 8 may be combined with various embodiments of the present disclosure, and the description, function, procedure, proposal, method, and / or operation of said embodiment may be omitted.

[0099] FIG. 9 illustrates a scenario based on a regenerative payload of a non-terrestrial network according to one embodiment of the present disclosure. The embodiment of FIG. 9 may be combined with various embodiments of the present disclosure, and the description, function, procedure, proposal, method, and / or operation of said embodiment may be omitted.

[0100] Referring to FIGS. 8 and 9, the satellite (or, unmanned aerial system (e.g., UAS) platform) described in the present disclosure, the terminal within the line of sight of the satellite (or, unmanned aerial system (e.g., UAS) platform), the beam footprint within the line of sight of the satellite (or, unmanned aerial system (e.g., UAS) platform), the feeder link between the satellite (or, unmanned aerial system (e.g., UAS) platform) and the gateway, and the data network are shown. A scenario in which a non-ground network (e.g., NTN) related to these elements provides access to the terminal is described below.

[0101] For example, non-terrestrial networks (e.g., NTN) may include the following features.

[0102] 1. One or more satellite gateways connecting non-terrestrial networks (e.g., NTN) and public data networks

[0103] For example, GEO satellites may be supplied by one or more satellite gateways deployed in the satellite target coverage (e.g., regional or continental coverage). For example, it may be assumed that an in-cell terminal is served by only a single satellite gateway.

[0104] For example, non-GEO satellites where one or more satellite gateways provide continuous service at a time. For example, the system can ensure service and feeder link continuity between serving satellites and gateways continuously for a sufficient amount of time to proceed with mobility anchoring and handover.

[0105] 2. Feeder link or wireless link between the satellite gateway and the satellite (or, unmanned aerial system (e.g., UAS) platform)

[0106] 3. Feeder link or wireless link between the terminal and the satellite (or, unmanned aerial system (e.g., UAS) platform)

[0107] 4. A satellite (or, unmanned aerial system (e.g., UAS) platform) capable of implementing transparent or regenerative (including onboard processing) payloads. For example, the beam generated by the satellite (or, unmanned aerial system (e.g., UAS) platform) can generate multiple beams across a service area typically defined by a line of sight. For example, the beam footprint may typically be elliptical. For example, the line of sight of the satellite (or, unmanned aerial system (e.g., UAS) platform) may vary depending on the onboard antenna diagram and the minimum elevation angle.

[0108] For example, in a transparent payload, radio frequency filtering, frequency conversion, and amplification can be performed. Therefore, the waveform signal repeated by the payload may not be altered.

[0109] For example, in a regenerated payload, radio frequency filtering, frequency conversion, and amplification can be performed, as well as demodulation / decoding, switching and / or routing, and coding / modulation. This can be effectively equivalent to deploying all or part of base station functions (e.g., gNB) on a satellite (or, unmanned aerial system (e.g., UAS) platform).

[0110] 5. When multiple satellites are clustered, inter-satellite links (e.g., ISL) may be optionally provided. For this purpose, a regenerative payload onboard the satellite may be required. For example, the inter-satellite links (e.g., ISL) may operate at radio frequency (e.g., RF) or in the broadband.

[0111] 6. Within the intended service area, the terminal may be served by a satellite (or, an unmanned aerial system (e.g., UAS) platform).

[0112] According to one embodiment of the present disclosure, various satellites (or unmanned aerial system (e.g., UAS) platforms) as follows may be provided.

[0113] Platform Altitude Range Orbit Typical Beam Footprint Size Low-earth orbit (LEO) satellite 300 - 1,500 km Circular orbit around Earth 100 - 1,000 km Medium Earth orbit (MEO) satellite 7,000 - 25,000 km 100 - 1,000 km Geostationary Earth orbit (GEO) satellite 35 786 km Conceptual station maintaining a fixed position in terms of elevation / azimuth relative to a given point on Earth 200 - 3,500 km (including HAPS) Unmanned Air System (e.g., UAS) platform 8 - 50 km (20 km for HAPS) 5 - 200 km High elliptical orbit (HEO) satellite 400 - 50,000 km Elliptical orbit around Earth 200 - 3,500 km

[0114] For example, geostationary (e.g., GEO) satellites and unmanned aerial systems (e.g., UAS) can be used to provide continental, regional, or local services.

[0115] For example, a constellation composed of low Earth orbit (e.g., LEO) and medium Earth orbit (e.g., MEO) satellites can be used to provide services to both the Northern and Southern hemispheres. In some cases, this constellation may cover the entire world, including the polar regions. In the latter case, appropriate orbital inclination, sufficient beam generation, and inter-satellite links may be required.

[0116] For example, in the following scenario, a non-terrestrial network (e.g., NTN) providing access to a terminal can be considered.

[0117] 1. Circular track and conceptual station maintenance platform.

[0118] 2. Maximum RTD Constraint

[0119] 3. Highest Doppler Constraint

[0120] 4. Transparent and Regenerated Payloads

[0121] 5. With and without an inter-satellite link (e.g., ISL). A regeneration payload may be required in the case of an inter-satellite link (e.g., ISL).

[0122] 6. Where a moving or fixed beam footprint occurs on the ground due to a fixed or maneuverable beam, respectively

[0123] Transparent Satellite Regenerative Satellite GEO-based Non-Ground Access Network Scenario A Scenario BLEO-based Non-Ground Access Network: Controllable Beam Scenario C1 Scenario D1 BLEO-based Non-Ground Access Network: Beam Moving with Satellite Scenario C2 Scenario D2

[0124] Scenarios GEO-based Non-Ground Access Network (Scenarios A and B) LEO-based Non-Ground Access Network (Scenarios C and D) Orbit Type Conceptual station maintaining a fixed position in terms of elevation / azimuth relative to a given point on Earth Circular orbit around Earth 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 Capability (Service Link) Band 30 MHz for <6 GHz Band 1 GHz for >6 GHz Payload Scenario A: Transparent payload (includes radio frequency functions only) Scenario B: Regenerate payload (includes all or part of RAN functions) Scenario C: Transparent payload (includes radio frequency functions only) Scenario D: Regenerate payload (includes all or part of RAN functions) Inter-Satellite Link (e.g., ISL) None Scenario C: None Scenario D: None / Present (Both possible) Earth-fixed beam Present Scenario C1: Present (Adjustable beam), see Note 1 Scenario C2: None (Beam moves with satellite) Scenario D1: Present (Adjustable beam), see Note 1 Scenario D2: None (Beam moves with satellite) Maximum beam footprint size independent of elevation angle (edge-to-edge) 3,500 km (Note 5) 1,000 km Minimum elevation angle for both satellite-gateway and terminal 10° for service link and 10° for feeder link 10° for service link and 10° for feeder link Maximum distance between satellite and terminal at minimum elevation angle 40,581 km 1,932 km (600 km elevation) 3,131 km (1,200 km elevation) Maximum round-trip delay (radio delay only) Scenario A: 541.46 ms (Service and feeder link) Scenario B: 270.73 ms (Service link only) Scenario C: (Transparent payload: Service and feeder link) - 25.77 ms (600km) - 41.77 ms (1200 km) Scenario D: (Regenerate Payload: Service Link Only) - 12.89 ms (600 km) - 20.89 ms (1200 km) Maximum In-Cell Differential Delay (Knot 6) 10.3 ms 3.12 ms and 3.18 ms for 600 km and 1200 km, respectively Maximum Doppler Shift (Earth-Fixed Terminal) 0.93 ppm 24 ppm (600 km) 21 ppm (1200 km) Maximum Doppler Shift Variations (Earth-Fixed Terminal) 0.000 0.45 ppm / s 0.27 ppm / s (600 km) 0.13 ppm / s (1200 km) Terrain Movement 1200 km / h (e.g., airplane) 500 km / h (e.g., high-speed train) Maximum 1200 km / h (e.g., airplane) Terminal Antenna Type Omnidirectional antenna (linear polarization), 0dBi assumption Directional antenna (maximum 60cm equivalent aperture diameter in circular polarization) Terminal transmission power Omnidirectional antenna: Maximum 200mW terminal power Class 3 Directional antenna: Maximum 20W terminal noise type Omnidirectional antenna: 7dB Directional antenna: 1.2dB Service link 3GPP defined New Radio Feeder link Radio interface defined by 3GPP or non-3GPP Radio interface defined by 3GPP or non-3GPP.

[0125] Note 1: Each satellite may have the ability to adjust a beam toward a fixed point on Earth using beamforming technology. This may be applied during the period corresponding to the satellite's visibility time.

[0126] Note 2: The maximum delay variation within the beam (earth-fixed terminal) can be calculated based on the minimum elevation angle of both the gateway and the terminal.

[0127] Note 3: The maximum differential delay within the beam can be calculated based on the maximum beam footprint diameter at the vertex.

[0128] Note 4: The luminous flux for delay calculation can be 299792458 m / s.

[0129] Note 5: The maximum beam footprint size of GEO may be based on the current latest GEO high-throughput system assuming there is a spot beam at the edge of coverage (low elevation).

[0130] Note 6: The maximum differential delay at the cell level may have been calculated by taking into account the delay at the beam level when the beam size is largest. When the beam size is small or medium, it may not be excluded that the cell may contain more than one beam. However, the cumulative differential delay of all beams within the cell may not exceed the maximum differential delay at the cell level in the table above.

[0131] For example, the results of the study on non-ground networks (e.g., NTN) can be applied to all NGSO scenarios with circular orbits at an altitude of 600 km or more, as well as to GEO scenarios.

[0132] For example, improvements may have been considered to ensure timing and frequency synchronization performance for terminal-to-base station transmission (e.g., UL transmission) by taking into account wider cell coverage, longer round-trip time (RTT), and high Doppler.

[0133] Referring to standard documents, some procedures and technical specifications related to the present disclosure are as follows.

[0134] Code splitting for low-density parity check coding (e.g., LDPC) is described below.

[0135] The input bit sequence for code block segmentation is b0, b1, b2, b3, ..., b B-1 It is indicated as such, where B>0.

[0136] B is the maximum code block size K cbIf it is larger, partitioning is performed on the input bit sequence, and an additional CRC sequence of L=24 bits may be added to each code block.

[0137] For low-density parity check coding (e.g., LDPC) base graph 1, the maximum code block size can be as follows:

[0138] - K cb = 8448.

[0139] For base graph 2 of low-density parity check coding (e.g., LDPC), the maximum code block size can be as follows:

[0140] - K cb = 3840.

[0141] The total number of code blocks C can be determined as follows:

[0142] if B K cb

[0143] L=0

[0144] Number of code blocks: C = 1

[0145] B'=B

[0146] else

[0147] L=24

[0148] Number of code blocks: C = ceil(B / (K cb - L))

[0149] B'=B+C*L

[0150] end if

[0151] The bits output from code block partitioning are c r0 , c r1 , c r2 , c r3 , ..., c r(Kr-1) It is indicated as, where 0 r < C is the code block number, and K r =K is the number of bits for code block number r.

[0152] The number of bits K in each code block can be calculated as follows:

[0153] K' = B' / C;

[0154] In the case of Low Density Parity Check Coding (e.g., LDPC) Base Graph 1,

[0155] K b = 22.

[0156] In the case of Base Graph 2 with low-density parity check coding (e.g., LDPC),

[0157] If B > 640

[0158] K b =10;

[0159] else if B > 560

[0160] K b = 9;

[0161] else if B > 192

[0162] K b = 8;

[0163] else

[0164] K b = 6;

[0165] end if

[0166] Among all (predefined) sets of lifting sizes, K b *Z c Find the minimum value of Z that satisfies K', and Z c It is denoted as such, and for low-density parity check coding (e.g., LDPC) base graph 1, K = 22Z c and for base graph 2 with low-density parity check coding (e.g., LDPC), K = 10Z c It could be;

[0167] bit sequence c rk can be calculated as follows:

[0168] s=0;

[0169] for r=0 to C-1

[0170] for k=0 to K'-L-1

[0171] c rk =b s ;

[0172] s=s+1;

[0173] end for

[0174] if C>1

[0175] sequence c r0 , c r1 , c r2 , c r3 , ..., c r(Kr-1) g CRC24B CRC parity bit p with (D) r0 , p r1 , p r2 , ..., P r(L-1) It is used to calculate.

[0176] for k=K'-L to K'-1

[0177] c rk =p r(k+L-K') ;

[0178] end for

[0179] end if

[0180] for k=K' to K-1 -- Insertion of filler bits

[0181] c rk = <null>;

[0182] end for

[0183] end for

[0184] Low-density parity check coding (e.g., LDPC) is described below.

[0185] For a given code block, the input bit sequence for channel coding is c0, c1, c2, c3, ..., c K-1 It is represented as , where K is the number of bits to be encoded.

[0186] The bits after encoding are d0, d1, d2, ..., d N-1 It is denoted as such, and for low-density parity check coding (e.g., low-density parity check coding (e.g., LDPC)) base graph 1, N = 66Z, and for low-density parity check coding (e.g., low-density parity check coding (e.g., LDPC)) base graph 2, N = 50Z, and the value of Zc can be given (by prior definition).

[0187] For code blocks encoded by low-density parity check coding (e.g., low-density parity check coding (e.g., LDPC)), the following encoding procedure may be applied:

[0188] 1) Index i containing Z LS Find the set that has .

[0189] 2) for k=2Z c to K-1

[0190] If c k ≠ <null>

[0191] d k-2Zc = <null>;

[0192] end if

[0193] end for

[0194] 3) N+2Z c -K parity bits w=[w0, w1, w2, ..., w N+2Zc-K-1 By generating ]^T Ensure that is satisfied. Here, c=[c0, c1, c2, ..., c K-1 It can be ]^T. 0 can be a column vector where all elements are 0. Encoding can be performed in GF(2).

[0195] For Low Density Parity Check Coding (e.g., LDPC) base graph 1, matrix H BG It has 46 rows and 68 columns, and the row index can be i = 0, 1, 2, ..., 45, and the column index can be j = 0, 1, 2, ..., 67.

[0196] For Base Graph 2 with low-density parity check coding (e.g., LDPC), matrix H BG It has 42 rows and 52 columns, and the row index can be i = 0, 1, 2, ..., 41, and the column index can be j = 0, 1, 2, ..., 51.

[0197] H having row and column indices given in Low-density Parity Check Coding (e.g., LDPC) base graph 1 and Low-density Parity Check Coding (e.g., LDPC) base graph 2). BG The elements of have a value of 1, and all other H BG The elements of have a value of 0.

[0198] The matrix H is H according to the following BG Each element of Z c ХZ c It is obtained by substituting into a matrix:

[0199] - H BG The element with a value of 0 in is Z c ХZ c It can be replaced with an all-zero (0) matrix.

[0200] - H BG The element with a value of 1 in is Z c ХZ c circular permutation matrix I(P i,j It is replaced with ), which is the identity matrix of size Z rotated to the right P i,j It has been cyclically shifted. P i,j The value of set index i LS and can be given according to the low-density parity check coding (e.g., LDPC) base graph.

[0201] 4) for k=K to N+2Z c -1

[0202] d k-2Zc =w k-K ;

[0203] end for

[0204] Table 6 shows the set of low-density parity check coding (e.g., LDPC) lifting sizes Z.

[0205] Set index(i LS )Set of lifting sizes (Z)0{2, 4, 8, 16, 32, 64, 128, 256}1{3, 6, 12, 24, 48, 96, 192, 384}2{5, 10, 20, 40, 80, 160, 320}3{7, 14, 28, 56, 112, 224}4{9, 18, 36, 72, 144, 288}5{11, 22, 44, 88, 176, 352}6{13, 26, 52, 104, 208}

[0206] A base graph is a structure that defines the connection relationships between variable nodes and check nodes, and a parity check matrix can be generated based on the base graph. The parity check matrix can be used for error detection and error correction during the channel coding process. For example, specific examples of base graphs and parity check matrices may be substantially identical to or based on structures disclosed in existing standard documents (e.g., TS 38.212).

[0207] Meanwhile, in the case of non-terrestrial network (e.g., NTN) communication methods, signal attenuation due to path loss can be significant as the distance between the terminal and the base station or non-terrestrial network (e.g., NTN) node becomes considerably long. In such situations (especially when the target block error rate (e.g., BLER) is low), it may be advantageous for the slope of the block error rate (e.g., BLER) curve to be steep relative to the signal-to-noise ratio (e.g., SNR). As part of the methods to achieve the above phenomenon, one may consider significantly increasing the length of the encoding sequence of the channel coding or further lowering the mother code rate.

[0208] In the embodiments of the present disclosure, the cell-by-cell or inter-cell relationships can be extended to beam footprint-by-beam footprint or inter-beam footprint relationships to apply / understand the concept of the present disclosure.

[0209] In the embodiments of the present disclosure, the cell-by-cell or inter-cell relationship can be extended to the carrier-by-carrier or inter-carrier relationship to apply / understand the concept of the present disclosure.

[0210] In an embodiment of the present disclosure, a method of managing terminal-to-base station (e.g., UL) channels / signals through a service link (a link between a non-terrestrial network (e.g., NTN) node and a terminal) associated with a different cell or carrier can be extended to a method of managing base station-to-terminal (e.g., DL) channels / signals and / or terminal-to-base station (e.g., UL) channels / signals through a feeder link (a link between a non-terrestrial network (e.g., NTN) node and a (terrestrial) gateway (e.g., GW)) associated with a different cell or carrier.

[0211] In embodiments of the present disclosure, for convenience of explanation, the first channel coding is named as a channel coding having a low-density parity check coding (e.g., LDPC) base graph 1 or a first maximum information bit length (e.g., 8424 or 8448) and a first mocode rate (e.g., 1 / 3); the second channel coding is named as a channel coding having a low-density parity check coding (e.g., LDPC) base graph 2 or a second maximum information bit length (e.g., 3816 or 3840) and a second mocode rate (e.g., 1 / 5); and the third channel coding is named as polar coding (e.g., polar coding for data) and / or non-binary coding and / or a third maximum information bit length (e.g., 3840 or 8448 or 10000 or 100000 or more) and / or a third mocode rate (e.g., 1 / 3 or less or It can be channel coding with 1 / 4 or 1 / 5.

[0212] For example, a transmitting node (e.g., a base station and / or non-terrestrial network (e.g., NTN) node and / or a terminal) may aggregate multiple transmission blocks (e.g., TB) into a single hypertransmission block (e.g., TB) and / or perform channel coding on the hypertransmission block (e.g., TB). For example, a receiving node (e.g., a terminal and / or a base station and / or non-terrestrial network (e.g., NTN) node) may perform channel coding decoding on the hypertransmission block (e.g., TB) as a unit.

[0213] For example, a transmitting node (e.g., a base station and / or non-terrestrial network (e.g., NTN) node and / or a terminal) may aggregate multiple code blocks (e.g., CB) into a single code block (e.g., CB) group and / or perform channel coding on said code block (e.g., CB) group. For example, a receiving node (e.g., a terminal and / or a base station and / or non-terrestrial network (e.g., NTN) node) may perform channel coding decoding on a unit basis using said hyper-transmission blocks (e.g., TB).

[0214] In an embodiment of the present disclosure, each transmission block (e.g., TB) constituting a hypertransmission block (e.g., TB) may be associated with a different HARQ process and / or a different terminal and / or a different radio network temporary identifier (e.g., RNTI; ratio network temporary identifier) ​​and / or a different message type (unicast and / or broadcast, different system information type and / or paging and / or random connection response (e.g., RAR), etc.).

[0215] For example, a group of hypertransmission blocks (e.g., TB) and / or code blocks (e.g., CB) that serve as the basic unit for third-channel coding may be composed of N transmission blocks (e.g., TB) and / or code blocks (e.g., CB). For example, the value of N may be set by radio resource control (e.g., RRC) and / or indicated by base station-to-terminal control information (e.g., DCI). For example, a combination of transmission blocks (e.g., TB) or code blocks (e.g., CB) constituting a group of hypertransmission blocks (e.g., TB) or code blocks (e.g., CB) may be set by radio resource control (e.g., RRC) (e.g., via radio resource control (e.g., RRC) signaling) and / or indicated by base station-to-terminal control information (e.g., DCI).

[0216] In an embodiment of the present disclosure, a transmission block (e.g., TB) may be distinguished by a receiving terminal and / or a transmitting terminal and / or a cell radio network temporary identifier (e.g., C-RNTI) and / or a terminal ID and / or a HARQ process and / or a new data indicator (e.g., NDI). For example, if the HARQ process ID is the same for two transmission blocks (e.g., TB) but the new data indicator (e.g., NDI) value or whether it is toggled is different, the two transmission blocks (e.g., TB) may be recognized as distinct transmission blocks (e.g., TB).

[0217] For example, the size of each transmission block (e.g., TB) constituting a hypertransmission block (e.g., TB) may all be the same, may be limited to the same case, or may be converted to the same value as the maximum, minimum, or average value of the constituent transmission blocks (e.g., TB) through an additional process. For example, the size and / or location and / or demodulation reference signal (e.g., DMRS) overhead of the time and / or frequency resources associated with each transmission block (e.g., TB) may all be the same. A single modulation and coding scheme (e.g., MCS) value may be applied equally to all transmission blocks (e.g., TB) constituting the hypertransmission block (e.g., TB). For example, the maximum, minimum, and average values ​​for transmission block sizes (e.g., TBS) determined according to the size and / or location of the time and / or frequency resource associated with each transmission block (e.g., TB) and / or the modulation and encoding scheme (e.g., MCS) and / or the demodulation reference signal (e.g., DMRS) overhead, etc., can be collectively determined / converted to the size of all transmission blocks (e.g., TB). For example, the minimum, maximum, or average resource size can be determined based on the size and / or location of the time and / or frequency resource associated with each transmission block (e.g., TB) and / or the modulation and encoding scheme (e.g., MCS) and / or the demodulation reference signal (e.g., DMRS) overhead, etc., and the transmission block size (e.g., TBS) can be calculated / determined based on this.

[0218] For example, the size of each transmission block (e.g., TB) constituting a hyper-transmission block (e.g., TB) may differ. For example, the size and / or location of the time and / or frequency resources associated with each transmission block (e.g., TB) may be set / indicated independently. For example, for each transmission block (e.g., TB), the modulation and encoding scheme (e.g., MCS) value and / or new data indicator (e.g., NDI) value and / or redundant version (e.g., RV) value may be set / indicated separately.

[0219] For example, a radio network temporary identifier (e.g., RNTI) or terminal-ID for a plurality of terminals associated with each transmission block (e.g., TB) of a hyper-transmission block (e.g., TB) may correspond to a radio network temporary identifier (e.g., RNTI) associated with a physical base station-to-terminal control channel (e.g., PDCCH) and / or a physical base station-to-terminal shared channel (e.g., PDSCH) used to transmit the hyper-transmission block (e.g., TB). For example, the association may be established by a base station node to a terminal via radio resource control (e.g., RRC) and / or indicated via base station-to-terminal control information (e.g., DCI) and / or indicated via L2 signaling (physical base station-to-terminal shared channel (e.g., PDSCH)). For example, a radio network temporary identifier (e.g., RNTI) for a hypertransmission block (e.g., TB) may correspond to a plurality of terminal-IDs and / or cell radio network temporary identifiers (e.g., C-RNTI), and / or may indicate a terminal and / or cell radio network temporary identifier (e.g., C-RNTI) that is ultimately scheduled in the hypertransmission block (e.g., TB) scheduling base station-to-terminal control information (e.g., DCI).

[0220] For example, the length of a hypertransmission block (e.g., TB) may be selected or quantized / converted to a value of a transmission block size (e.g., TBS) supported by a general communication method, and / or each size of a transmission block (e.g., TB) constituting the hypertransmission block (e.g., TB) may be allowed not to be a value of a transmission block size (e.g., TBS) supported by a general communication method. For example, when defining / setting the size of a transmission block (e.g., TB) constituting the hypertransmission block (e.g., TB), the quantization / conversion process to fit to a specific set of transmission block size (e.g., TBS) values ​​may be omitted. For example, each size of a transmission block (e.g., TB) constituting a hyper transmission block (e.g., TB) may be selected or quantized / converted to a value of a transmission block size (e.g., TBS) supported by a general communication method, and / or the size of the hyper transmission block (e.g., TB) may be determined as the sum of the transmission block sizes (e.g., TBS), and / or additionally, a process of converting to a value of a transmission block size (e.g., TBS) supported by a general communication method may be performed.

[0221] For example, a separate CRC sequence may be generated and / or added for hypertransmission blocks (e.g., TB).

[0222] For example, a code block (e.g., CB) or a third unit constituting a single transmission block (e.g., TB) may be associated with a different HARQ process and / or a different terminal. For example, in the above case, the hyper transmission block (e.g., TB) may be replaced with a transmission block (e.g., TB), and the constituent transmission block (e.g., TB) may be replaced with a constituent code block (e.g., CB) or a third constituent unit, so that the concept of the present disclosure may be applied.

[0223] For example, through base station-to-terminal control information (e.g., DCI) that schedules a physical base station-to-terminal shared channel (e.g., PDSCH) that simultaneously transmits a hypertransmission block (e.g., TB) and / or a different HARQ process and / or a new data indicator (e.g., NDI) and / or data for a different terminal, HARQ process information and / or a new data indicator (e.g., NDI) and / or radio network temporary identifier (e.g., RNTI) information and / or terminal information for each transmission block (e.g., TB) or each code block (e.g., CB) or each third unit, HARQ process information and / or a new data indicator (e.g., NDI) and / or radio network temporary identifier (e.g., RNTI) information and / or terminal information may be indicated.

[0224] For example, the HARQ process number indicated by the base station-to-terminal control information (e.g., DCI) is for a specific transmission block (e.g., TB) among the configuration transmission blocks (e.g., TB) (e.g., the first transmission block (e.g., TB)), and / or the HARQ process number for the remaining transmission blocks (e.g., TB) can be derived from the indicated HARQ process number in the form of increasing and / or decreasing and / or maintaining, etc.

[0225] For example, the increase or decrease or maintain or change value of the transmission block-by-transmission block (e.g., TB-by-TB) may be set by radio resource control (e.g., RRC) (e.g., via radio resource control (e.g., RRC) signaling) and / or indicated by base station-to-terminal control information (e.g., DCI) and / or transmitted together through a physical base station-to-terminal shared channel (e.g., PDSCH) or a physical terminal-to-base station shared channel (e.g., PUSCH) through which the hyper-transmission block (e.g., TB) is transmitted.

[0226] For example, regarding data for a hypertransmission block (e.g., TB) being transmitted and / or different HARQ processes and / or new data indicators (e.g., NDI) and / or different terminals, through third base station-to-terminal control information (e.g., DCI), HARQ process information and / or new data indicators (e.g., NDI) and / or radio network temporary identifiers (e.g., RNTI) and / or terminal information for each transmission block (e.g., TB) or each code block (e.g., CB) or each third unit may be indicated.

[0227] For example, the third base station-to-terminal control information (e.g., DCI) may exist separately for each transmission block (e.g., TB) or each code block (e.g., CB) or each third unit. For example, the third base station-to-terminal control information (e.g., DCI) may be transmitted through a physical base station-to-terminal shared channel (e.g., PDSCH) resource and / or a physical terminal-to-base station shared channel (e.g., PUSCH) resource that transmits a hyper-transmission block (e.g., TB) and / or a different HARQ process and / or a new data indicator (e.g., NDI) and / or data for a different terminal simultaneously.

[0228] For example, HARQ process information and / or new data indicator (e.g., NDI) and / or terminal information for a specific transmission block (e.g., TB) or a specific code block (e.g., CB) or a specific third unit constituting a hypertransmission block (e.g., TB) may be indicated through base station-to-terminal control information (e.g., DCI) that schedules a physical base station-to-terminal shared channel (e.g., PDSCH) that simultaneously transmits data for a different HARQ process and / or a different terminal transmitting the hypertransmission block (e.g., TB) and / or data for a different terminal.

[0229] For example, in the present disclosure, information bits may be interchanged with message bits. For example, in the present disclosure, c0, c1, c2, ..., c r(Kr-1) can mean message bits and / or information bits.

[0230] For example, coded bits or complex symbols generated through (third) channel coding encoding and / or modulation can be converted into interleaved bits or complex symbols through an interleaving process. For example, the interleaving can be performed such that complex coded symbols associated with message bits are distributed (almost) equally across time resources and / or multiple slots for a physical base station-to-terminal shared channel (e.g., PDSCH) or a physical terminal-to-base station shared channel (e.g., PUSCH), based on a specific redundant version (e.g., RV) value (e.g., RV0). An advantage of this is that time diversity can be obtained for the message bits. Mapping can be performed in such a way that portions of the information bits are distributed (equally) within the base station-to-terminal (e.g., DL) time resources.

[0231] For example, a single hypertransmission block (e.g., TB) may be transmitted to a plurality of physical base station-to-terminal shared channel (e.g., PDSCH) or physical terminal-to-base station shared channel (e.g., PUSCH) resources for hypertransmission block (e.g., TB) transmission, which are obtained through slot aggregation and / or through indicated / set repetition numbers and / or through a plurality of time domain resources linked to time domain resource allocation entries.

[0232] Meanwhile, it may be inefficient to always have the same combination of transmission blocks (e.g., TB) and / or hypertransmission blocks (e.g., TB) and / or target terminal and / or HARQ process for initial transmission and retransmission.

[0233] For example, a terminal may receive physical base station-to-terminal shared channel (eg, PDSCH) transmissions for a plurality of hyper-transmission blocks (eg, TB) or transmission blocks (eg, TB) from a base station node, and for a plurality of physical base station-to-terminal shared channel (eg, PDSCH) transmissions, some transmission blocks (eg, TB) constituting the hyper-transmission block (eg, TB) are retransmitted while the remainder are new transmission blocks (eg, TB) or have a different number thereof, and / or some code blocks (eg, CB) constituting the transmission block (eg, TB) are retransmitted while the remainder are new code blocks (eg, CB) or have a different number thereof, and / or some bits constituting the transmission block (eg, TB) are derived from the same information for the plurality of physical base station-to-terminal shared channel (eg, PDSCH) transmissions and the remaining bits are derived from different information for the plurality of physical base station-to-terminal shared channel (eg, PDSCH) transmissions may be allowed.

[0234] For example, when a terminal that has received an initial transmission receives a retransmission, and / or when the configuration of the transmission block (e.g., TB) of the hypertransmission block (e.g., TB) for a (re)transmission different from the initial transmission is different, and / or when the configuration of the third unit constituting the transmission block (e.g., TB) is different, the terminal may perform HARQ combining on some bits in the soft buffer and flush and / or replace the other bits with received bit information for the (re)transmission.

[0235] For example, among the transmission blocks (eg, TB) constituting a hyper-transmission block (eg, TB), if the new data indicator (eg, NDI) is not toggled for the transmission block (eg, TB) corresponding to the retransmission and / or the transmission block (eg, TB) corresponding to the initial transmission, and / or the HARQ process information is the same and / or the terminal information or radio network temporary identifier (eg, RNTI) information is the same, then HARQ combining may be performed on the message bits for said transmission block (eg, TB), and / or the information in the soft buffer for the remaining transmission blocks (eg, TB) and / or the parity bits for (re)transmission may be flushed and / or replaced with the reception bit information for retransmission. The basis for this is that the parity bit may change significantly even if a part of the message bits for encoding is changed.

[0236] For example, cases where the configuration of the transmission block (eg, TB) is different may include cases where the number of transmission blocks (eg, TB) constituting the hyper transmission block (eg, TB) is changed and / or cases where a new data indicator (eg, NDI) value for the configuration transmission block (eg, TB) is toggled and / or cases where the HARQ process for the configuration transmission block (eg, TB) is changed and / or cases where terminal information or radio network temporary identifier (eg, RNTI) information for the configuration transmission block (eg, TB) is changed.

[0237] For example, system information and / or data information for a specific terminal may be transmitted simultaneously through a single physical base station-to-terminal shared channel (e.g., PDSCH) and / or encoded in the same transmission block (e.g., TB) or the same hyper-transmission block (e.g., TB). In the above situation, the system information may be maintained without being changed for transmissions within the system information cycle, and the presence and value of the data information for a specific terminal may be changed with each transmission.

[0238] For example, (in the above situation) the terminal may perform HARQ combining for the message bits for the transmission block (e.g., TB) for system information received within the cycle of system information, and / or replace the information in the soft buffer with the received bit information for the transmission block (e.g., TB) for user data and / or parity bits.

[0239] FIG. 10 illustrates a method for performing HARQ combining according to one embodiment of the present disclosure. The embodiment of FIG. 10 may be combined with various embodiments of the present disclosure, and the description, function, procedure, suggestion, method, and / or operation of said embodiment may be omitted.

[0240] Referring to FIG. 10, two coded bits appear immediately after channel coding. For example, the two coded bits may each be a coded bit associated with a first transmission and a coded bit associated with a second transmission, and the second transmission may be a retransmission of the first transmission. For example, the present embodiment may be applied when a retransmission is performed for a hypertransmission block (e.g., TB).

[0241] Each coded bit may consist of an information bit and a parity bit, and the parity bit associated with the first transmission and the parity bit associated with the second transmission may be different. For example, the transmission of the coded bit may be stored in a soft buffer at the receiving end, and the form in which it is stored may be data.

[0242] Here, since the second transmission is a retransmission of the first transmission, HARQ combining may be performed. In this case, for example, data related to the information bits related to the first transmission and data related to the information bits related to the second transmission may be used in the combination related to HARQ combining. For example, data related to the parity bits related to the second transmission may replace data related to the parity bits related to the first transmission. For example, data related to the parity bits related to the first transmission may be flushed from a soft buffer.

[0243] For example, whether and how to use third coding can be set by the base station node to the terminal by radio resource control (e.g., via radio resource control (e.g., RRC) signaling (e.g., via radio resource control (e.g., RRC) signaling) by radio network temporary identifier (e.g., RNTI) and / or cell and / or link type and / or base station-to-terminal control information (e.g., DCI) format and / or channel type and / or CORESET and / or search space for scheduling base station-to-terminal control information (e.g., DCI) and / or transmission block size (e.g., TBS) range, and / or via physical base station-to-terminal shared channel (e.g., PDSCH) and / or physical terminal-to-base station shared channel (e.g., PUSCH) scheduling base station-to-terminal control information (e.g., DCI). For example, a different transmission block size (e.g., TBS) range may include a difference between the transmission block size (e.g., TBS) range of the initial transmission and the transmission block size (e.g., TBS) range of the retransmission.

[0244] FIG. 11 illustrates a method in which base station-to-device control information (e.g., DCI) indicates a coding method according to one embodiment of the present disclosure. The embodiment of FIG. 11 may be combined with various embodiments of the present disclosure, and the description, function, procedure, proposal, method, and / or operation of said embodiment may be omitted.

[0245] Referring to FIG. 11, a base station (e.g., a non-terrestrial network (e.g., NTN) base station) may transmit base station-to-device control information (e.g., DCI) to a first device. For example, the base station-to-device control information (e.g., DCI) may include information related to a coding scheme. For example, the coding scheme may include at least one of a first base graph, a second base graph, and / or other base graphs related to low-density parity check coding (e.g., LDPC).

[0246] For example, the information related to the coding method may be information indicating different coding methods for initial transmission and retransmission. For example, the information related to the coding method may indicate that a first coding method is applied to a transmission block related to initial transmission, and / or that a second coding method different from the first coding method is applied to a transmission block related to retransmission. A first device that receives the base station-to-device control information (e.g., DCI) may perform channel coding based on the information related to the coding method and subsequently perform a transmission operation.

[0247] For example, for a transmission method in which the use of the third coding is permitted, the terminal may perform decoding based on the third coding. For example, the channel coding method used by the physical base station-to-terminal shared channel (e.g., PDSCH) or physical terminal-to-base station shared channel (e.g., PUSCH) may differ depending on the radio network temporary identifier (e.g., RNTI), and / or cell, and / or link type, and / or base station-to-terminal control information (e.g., DCI) format, and / or channel type, and / or CORESET and / or search space for scheduling base station-to-terminal control information (e.g., DCI), and / or transmission block size (e.g., TBS) range.

[0248] For example, if the scheduling is exceptionally performed via fallback base station-to-terminal control information (e.g., DCI) (e.g., base station-to-terminal control information (e.g., DCI) format 1_0, base station-to-terminal control information (e.g., DCI) format 0_0) and / or if the scheduling base station-to-terminal control information (e.g., DCI) is transmitted via all or part of a common search space (e.g., CSS) and / or if the scheduling base station-to-terminal control information (e.g., DCI) is transmitted from CORESET#0 and / or if the scheduling base station-to-terminal control information (e.g., DCI) and / or the physical base station-to-terminal shared channel (e.g., PDSCH) is transmitted within the frequency domain of the initial base station-to-terminal (e.g., DL) partial bandwidth (e.g., BWP), the configured third coding is not used, and the general default channel coding may be used.

[0249] Meanwhile, in situations where the size of the soft buffer is limited, if the (maximum) coded bit length becomes significantly large due to the use of third-channel coding, it may be necessary to manage the buffer more efficiently. For example, the maximum HARQ process number can be set by radio resource control (e.g., RRC) signaling according to the channel coding method and / or the transmission block size (e.g., TBS) range. For example, depending on a specific transmission block size (e.g., TBS) range, the transmission node may divide a transmission block (e.g., TB) into multiple code blocks (e.g., CB) and perform encoding for each code block (e.g., CB), and / or may use third-channel coding to perform encoding on the result by aggregating transmission blocks (e.g., TB) or multiple code blocks (e.g., CB) or transmission blocks (e.g., TB).

[0250] Various embodiments of the present disclosure may be extended and applied to other channel coding methods, and in such cases, the embodiments of the present disclosure may be extended and applied by using the maximum information bit length supported by a specific channel coding or a length close thereto.

[0251] According to various embodiments of the present disclosure, there is an effect of efficiently changing and using a suitable channel coding method depending on the communication type (TN or non-terrestrial network (e.g., NTN)).

[0252] Various embodiments of the present disclosure may be applied differently depending on the link type (base station-to-terminal link (e.g., DL), terminal-to-base station link (e.g., UL), terminal-to-terminal link (e.g., SL)) and / or the data type (system information block (e.g., SIB), group cast, unicast) and / or the search space type (CSS, USS) in which the scheduling physical base station-to-terminal control channel (e.g., PDCCH) is detected and / or the base station node type and / or altitude and / or the presence or absence of a power constraint. For example, combinations of various embodiments of the present disclosure may be applied only when associated with the transmission of a system information block (e.g., SIB) or, exceptionally, not applied.

[0253] Channel coding is a technique for encoding data by adding extra bits (redundant information) at the transmitting end to reduce errors occurring during transmission. The receiving end can use this redundant information to detect or correct errors that occur during transmission. This enables highly reliable communication even under the same transmission power and bandwidth conditions. According to existing technology, the method by which this channel coding is performed (hereinafter referred to as the channel coding method) can be determined based on the transmission block size (e.g., TBS) and / or the target code rate.

[0254] Meanwhile, in non-terrestrial network (e.g., NTN) environments, as the RTT increases, the number of retransmissions may be limited, and it may be necessary to maximize channel coding. Generally, in channel coding methods, error floor performance can be improved as the size of the coded bits (or codeword bits) increases. However, there may be a limit to increasing the size of the coded bits with the size of a typical transmission block (e.g., TB).

[0255] According to one embodiment of the present disclosure, a channel coding method can be set to a terminal through base station-to-terminal control information. According to one embodiment of the present disclosure, a hyper transmission block (eg. TB) is generated by aggregating a plurality of transmission blocks (eg. TB), and by performing channel coding on the hyper transmission block (eg. TB), the hyper transmission block (eg. TB) can be transmitted through a plurality of TTIs or slots.

[0256] For example, if a transmission block (e.g., TB) constituting a hypertransmission block (e.g., TB) is changed, HARQ combining may be performed on some bits (e.g., information bits), and replacement with flush or retransmission bits may be performed on the remaining bits. For example, the channel coding to be used for the data channel may vary depending on the scheduling base station-to-terminal control information (e.g., DCI) transmission method or the transmission block size (e.g., TBS) range.

[0257] According to one embodiment of the present disclosure, appropriate channel coding can be performed depending on the signal-to-noise ratio (e.g., SNR) range, communication channel conditions, or transmission block size (e.g., TBS). For example, channel coding suitable for a non-terrestrial network (e.g., NTN) environment can be supported.

[0258] FIG. 12 illustrates a procedure of a method that can be performed by a first device according to one embodiment of the present disclosure. The embodiment of FIG. 12 may be combined with various embodiments of the present disclosure, and the description, function, procedure, proposal, method, and / or operation of said embodiment may be omitted.

[0259] Referring to FIG. 12, at step S1210, the first device may receive base station-to-device control information from the base station that includes information related to a channel coding scheme. At step S1220, the first device may receive a base station-to-device transmission from the base station. At step S1230, the first device may obtain first data related to the base station-to-device transmission. At step S1240, the first device may attempt to decode the first data based on the channel coding scheme. For example, the first data may be related to coded bits after encoding using the channel coding scheme.

[0260] For example, the above channel coding method may be low-density parity check coding using a first base graph or low-density parity check coding using a second base graph.

[0261] For example, the above channel coding method may be a coding method different from low-density parity check coding using a first base graph and low-density parity check coding using a second base graph.

[0262] For example, the above-mentioned coded bit may be a bit after encoding performed by the base station.

[0263] For example, based on the fact that the base station-to-device transmission is an initial transmission, the channel coding method may be a first coding method, and based on the fact that the base station-to-device transmission is a retransmission, the channel coding method may be a second coding method different from the first coding method.

[0264] For example, additionally, the first device may obtain third data by combining the first data with the second data in a soft buffer for the transmission block based on the fact that the base station-to-device transmission is a retransmission and that decoding of the first data is unsuccessful; and may attempt to decode the third data. For example, the combination of the second data and the first data may be performed based on a second information bit associated with the second data and a first information bit associated with the first data.

[0265] For example, based on the fact that the base station-to-device transmission is a retransmission and that decoding of the first data is unsuccessful, the data associated with the parity bit in the soft buffer may be flushed.

[0266] For example, based on the fact that the base station-to-device transmission is a retransmission and that the decoding of the first data is unsuccessful, the data associated with the parity bit in the soft buffer may be replaced with the data associated with the parity bit associated with the first data.

[0267] For example, the transmission block associated with the base station-to-device transmission may be a hyper-transmission block formed by aggregating multiple transmission blocks.

[0268] For example, interleaving is performed on the coded bits, and based on the interleaving, the information bits included in the coded bits can be mapped in a form that is evenly distributed among a plurality of transmission resources where the base station-to-device transmission is received.

[0269] For example, the above interleaving can be performed based on a first duplicate version value.

[0270] For example, the above base station may be a base station associated with a non-terrestrial network.

[0271] The above-described embodiment may be applied to various devices described below. First, the processor (102) of the first device (100) may control the transceiver (106) to receive base station-to-device control information including information related to a channel coding method from the base station (300). Then, the processor (102) of the first device (100) may control the transceiver (106) to receive a base station-to-device transmission from the base station (300). Then, the processor (102) of the first device (100) may obtain first data related to the base station-to-device transmission. Then, the processor (102) of the first device (100) may attempt to decode the first data based on the channel coding method. For example, the first data may be related to coded bits after encoding using the channel coding method.

[0272] According to one embodiment of the present disclosure, a first device may be provided. For example, the first device may include: at least one transceiver; at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, based on the instructions being executed by the at least one processor, the first device may: receive base station-to-device control information including information related to a channel coding scheme from a base station; receive a base station-to-device transmission from the base station; obtain first data related to the base station-to-device transmission; and attempt to decode the first data based on the channel coding scheme, wherein the first data may be related to coded bits after encoding using the channel coding scheme.

[0273] For example, the above channel coding method may be low-density parity check coding using a first base graph or low-density parity check coding using a second base graph.

[0274] For example, the above channel coding method may be a coding method different from low-density parity check coding using a first base graph and low-density parity check coding using a second base graph.

[0275] For example, the above-mentioned coded bit may be a bit after encoding performed by the base station.

[0276] For example, based on the fact that the base station-to-device transmission is an initial transmission, the channel coding method may be a first coding method, and based on the fact that the base station-to-device transmission is a retransmission, the channel coding method may be a second coding method different from the first coding method.

[0277] For example, additionally, the commands may cause the first device to: obtain third data by combining the first data with the second data in the soft buffer for the transmission block, based on the fact that the base station-to-device transmission is a retransmission and that decoding of the first data is unsuccessful; and attempt to decode the third data. For example, the combination of the second data and the first data may be performed based on a second information bit associated with the second data and a first information bit associated with the first data.

[0278] For example, based on the fact that the base station-to-device transmission is a retransmission and that decoding of the first data is unsuccessful, the data associated with the parity bit in the soft buffer may be flushed.

[0279] For example, based on the fact that the base station-to-device transmission is a retransmission and that the decoding of the first data is unsuccessful, the data associated with the parity bit in the soft buffer may be replaced with the data associated with the parity bit associated with the first data.

[0280] For example, the transmission block associated with the base station-to-device transmission may be a hyper-transmission block formed by aggregating multiple transmission blocks.

[0281] For example, interleaving is performed on the coded bits, and based on the interleaving, the information bits included in the coded bits can be mapped in a form that is evenly distributed among a plurality of transmission resources where the base station-to-device transmission is received.

[0282] For example, the above interleaving can be performed based on a first duplicate version value.

[0283] For example, the above base station may be a base station associated with a non-terrestrial network.

[0284] According to one embodiment of the present disclosure, a processing device configured to control a first device may be provided. For example, the first device may include: at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, based on the instructions being executed by the at least one processor, the first device may: receive base station-to-device control information including information related to a channel coding scheme from a base station; receive a base station-to-device transmission from the base station; acquire first data related to the base station-to-device transmission; and attempt to decode the first data based on the channel coding scheme, wherein the first data may be related to coded bits after encoding using the channel coding scheme.

[0285] According to one embodiment of the present disclosure, a non-transient computer-readable storage medium recording instructions may be provided. For example, when the instructions are executed, the first device may: receive base station-to-device control information including information related to a channel coding scheme from a base station; receive a base station-to-device transmission from the base station; obtain first data related to the base station-to-device transmission; and attempt to decode the first data based on the channel coding scheme, wherein the first data may be related to coded bits after encoding using the channel coding scheme.

[0286] FIG. 13 illustrates a procedure of a method that can be performed by a second device according to one embodiment of the present disclosure. The embodiment of FIG. 13 may be combined with various embodiments of the present disclosure, and the description, function, procedure, proposal, method, and / or operation of said embodiment may be omitted.

[0287] Referring to FIG. 13, in step S1310, the second device may transmit base station-to-device control information containing information related to a channel coding scheme to the first device. In step S1320, the second device may obtain coded bits based on an encoding using the channel coding scheme. In step S1330, the second device may perform a transmission operation for the coded bits to the first device.

[0288] For example, the above channel coding method may be low-density parity check coding using a first base graph or low-density parity check coding using a second base graph.

[0289] For example, the above channel coding method may be a coding method different from low-density parity check coding using a first base graph and low-density parity check coding using a second base graph.

[0290] For example, based on the fact that the base station-to-device transmission is an initial transmission, the channel coding method may be a first coding method, and based on the fact that the base station-to-device transmission is a retransmission, the channel coding method may be a second coding method different from the first coding method.

[0291] For example, based on the fact that the base station-to-device transmission is a retransmission and that decoding of the first data is unsuccessful, a third data is obtained by combining the second data in a soft buffer for the transmission block and the first data by the first device, and decoding of the third data can be attempted by the first device, and the combination of the second data and the first data can be performed based on a second information bit associated with the second data and a first information bit associated with the first data.

[0292] For example, based on the fact that the base station-to-device transmission is a retransmission and that decoding of the first data is unsuccessful, the data associated with the parity bit in the soft buffer may be flushed.

[0293] For example, based on the fact that the base station-to-device transmission is a retransmission and that the decoding of the first data is unsuccessful, the data associated with the parity bit in the soft buffer may be replaced with the data associated with the parity bit associated with the first data.

[0294] For example, the transmission block associated with the base station-to-device transmission may be a hyper-transmission block formed by aggregating multiple transmission blocks.

[0295] For example, interleaving is performed on the coded bits, and based on the interleaving, the information bits included in the coded bits can be mapped in a form that is evenly distributed among a plurality of transmission resources where the base station-to-device transmission is received.

[0296] For example, the above interleaving can be performed based on a first duplicate version value.

[0297] For example, the second device may be a base station associated with a non-ground network.

[0298] The above-described embodiment may be applied to various devices described below. First, the processor (202) of the second device (200) may control the transceiver (202) to transmit base station-to-device control information, including information related to a channel coding method, to the first device (100). Then, the processor (202) of the second device (200) may obtain coded bits based on an encoding using the channel coding method. Then, the processor (202) of the second device (200) may control the transceiver (202) to perform a transmission operation for the coded bits to the first device (100).

[0299] According to one embodiment of the present disclosure, a second device may be provided. For example, the second device may include: at least one transceiver; at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, based on the instructions being executed by the at least one processor, the second device may cause: to transmit base station-to-device control information including information related to a channel coding scheme to the first device; to obtain coded bits based on an encoding using the channel coding scheme; and to cause the first device to perform a transmission operation on the coded bits.

[0300] For example, the above channel coding method may be low-density parity check coding using a first base graph or low-density parity check coding using a second base graph.

[0301] For example, the above channel coding method may be a coding method different from low-density parity check coding using a first base graph and low-density parity check coding using a second base graph.

[0302] For example, based on the fact that the base station-to-device transmission is an initial transmission, the channel coding method may be a first coding method, and based on the fact that the base station-to-device transmission is a retransmission, the channel coding method may be a second coding method different from the first coding method.

[0303] For example, based on the fact that the base station-to-device transmission is a retransmission and that decoding of the first data is unsuccessful, a third data is obtained by combining the second data in a soft buffer for the transmission block and the first data by the first device, and decoding of the third data can be attempted by the first device, and the combination of the second data and the first data can be performed based on a second information bit associated with the second data and a first information bit associated with the first data.

[0304] For example, based on the fact that the base station-to-device transmission is a retransmission and that decoding of the first data is unsuccessful, the data associated with the parity bit in the soft buffer may be flushed.

[0305] For example, based on the fact that the base station-to-device transmission is a retransmission and that the decoding of the first data is unsuccessful, the data associated with the parity bit in the soft buffer may be replaced with the data associated with the parity bit associated with the first data.

[0306] For example, the transmission block associated with the base station-to-device transmission may be a hyper-transmission block formed by aggregating multiple transmission blocks.

[0307] For example, interleaving is performed on the coded bits, and based on the interleaving, the information bits included in the coded bits can be mapped in a form that is evenly distributed among a plurality of transmission resources where the base station-to-device transmission is received.

[0308] For example, the above interleaving can be performed based on a first duplicate version value.

[0309] For example, the second device may be a base station associated with a non-ground network.

[0310] Various embodiments of the present disclosure may be combined with one another, and some descriptions, functions, procedures, suggestions, methods, and / or procedures among the various embodiments may be omitted.

[0311] The following describes an apparatus to which various embodiments of the present disclosure may be applied.

[0312] Although not limited to this, the various descriptions, functions, procedures, proposals, methods, and / or flowcharts of operation disclosed in this document may be applied to various fields requiring wireless communication / connection (e.g., 5G) between devices.

[0313] Examples are provided in more detail below with reference to the drawings. In the following drawings and descriptions, the same reference numerals may represent the same or corresponding hardware blocks, software blocks, or function blocks unless otherwise described.

[0314] FIG. 14 shows a communication system (1) according to one embodiment of the present disclosure. The embodiment of FIG. 14 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods and / or operations of the embodiments may be omitted.

[0315] Referring to FIG. 14, a communication system (1) to which various embodiments of the present disclosure are applied includes a wireless device, a base station, and a network. Here, the wireless device refers to a device that performs communication using wireless access technology (e.g., 5G NR (New RAT), LTE (Long Term Evolution)) and may be referred to as a communication / wireless / 5G device. Although not limited thereto, the wireless device may include a robot (100a), a vehicle (100b-1, 100b-2), an XR (eXtended Reality) device (100c), a hand-held device (100d), a home appliance (100e), an IoT (Internet of Thing) device (100f), and an AI device / server (400). For example, the vehicle may include a vehicle equipped with wireless communication functions, an autonomous vehicle, a vehicle capable of performing inter-vehicle communication, etc. Here, the vehicle may include an Unmanned Aerial Vehicle (UAV) (e.g., a drone) and / or an Aerial Vehicle (AV) (e.g., Advanced Air Mobility). The XR device includes an Augmented Reality (AR) / Virtual Reality (VR) / Mixed Reality (MR) device and may be implemented in the form of a Head-Mounted Device (HMD), a Head-Up Display (HUD) equipped in a vehicle, a television, a smartphone, a computer, a wearable device, a home appliance, digital signage, a vehicle, a robot, etc. The portable device may include a smartphone, a smartpad, a wearable device (e.g., a smartwatch, smart glasses), a computer (e.g., a laptop, etc.). The home appliance may include a TV, a refrigerator, a washing machine, etc. The IoT device may include a sensor, a smart meter, etc. For example, a base station and a network may be implemented as a wireless device, and a specific wireless device (200a) may operate as a base station / network node to other wireless devices.

[0316] Here, the wireless communication technology implemented in the wireless devices (100a to 100f) of the present disclosure may include LTE, NR, and 6G, as well as Narrowband Internet of Things for low-power communication. In this case, for example, NB-IoT technology may be an example of LPWAN (Low Power Wide Area Network) technology and may be implemented according to standards such as LTE Cat NB1 and / or LTE Cat NB2, but is not limited to the names mentioned above. Additionally, or generally, the wireless communication technology implemented in the wireless devices (100a to 100f) of the present disclosure may perform communication based on LTE-M technology. In this case, for example, LTE-M technology may be an example of LPWAN technology and may be referred to by various names such as eMTC (enhanced Machine Type Communication). For example, LTE-M technology may be implemented in at least one of various standards such as 1) LTE CAT 0, 2) LTE Cat M1, 3) LTE Cat M2, 4) LTE non-BL (non-Bandwidth Limited), 5) LTE-MTC, 6) LTE Machine Type Communication, and / or 7) LTE M, and is not limited to the names mentioned above. Additionally or generally, wireless communication technology implemented in the wireless devices (100a to 100f) of the present disclosure may include at least one of ZigBee, Bluetooth, and Low Power Wide Area Network (LPWAN) for low-power communication, and is not limited to the names mentioned above. As an example, ZigBee technology can create personal area networks (PANs) related to small / low-power digital communication based on various standards such as IEEE 802.15.4, and may be referred to by various names.

[0317] Wireless devices (100a to 100f) can be connected to a network (300) through a base station (200). Artificial Intelligence (AI) technology may be applied to the wireless devices (100a to 100f), and the wireless devices (100a to 100f) can be connected to an AI server (400) through the network (300). The network (300) can be configured using a 3G network, a 4G (e.g., LTE) network, or a 5G (e.g., NR) network. The wireless devices (100a to 100f) may communicate with each other through the base station (200) / network (300), but they may also communicate directly (e.g., sidelink communication) without going through the base station / network. For example, vehicles (100b-1, 100b-2) can communicate directly (e.g., V2V (Vehicle to Vehicle) / V2X (Vehicle to everything) communication). Also, IoT devices (e.g., sensors) can communicate directly with other IoT devices (e.g., sensors) or other wireless devices (100a to 100f).

[0318] Wireless communication / connection (150a, 150b, 150c) can be established between wireless devices (100a~100f) / base station (200) and base station (200) / base station (200). Here, wireless communication / connection can be achieved through various wireless access technologies (e.g., 5G NR), such as uplink / downlink communication (150a), sidelink communication (150b) (or D2D communication), and inter-base station communication (150c) (e.g., relay, IAB (Integrated Access Backhaul)). Through wireless communication / connection (150a, 150b, 150c), wireless devices and base stations / wireless devices, and base stations and base stations can transmit / receive wireless signals to / from each other. For example, wireless communication / connection (150a, 150b, 150c) can transmit / receive signals through various physical channels. To this end, based on various proposals of the present disclosure, at least some of the following may be performed: various configuration information setting processes for transmitting / receiving wireless signals, various signal processing processes (e.g., channel encoding / decoding, modulation / demodulation, resource mapping / demapping, etc.), resource allocation processes, etc.

[0319] FIG. 15 shows a wireless device according to one embodiment of the present disclosure. The embodiment of FIG. 15 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods and / or operations of the embodiments may be omitted.

[0320] Referring to FIG. 15, the first wireless device (100) and the second wireless device (200) can transmit and receive wireless signals through various wireless access technologies (e.g., LTE, NR). Here, {the first wireless device (100), the second wireless device (200)} may correspond to {wireless device (100x), base station (200)} and / or {wireless device (100x), wireless device (100x)} of FIG. 14.

[0321] For example, the description of the first wireless device (or device) and the second wireless device (or device) below may be extended to the third wireless device (300) (or device) or the wireless device (or device) corresponding to a subsequent reference number. For example, the reference number of the processor of the third wireless device (300) may be 302, and the reference number of the transceiver may be 306.

[0322] The first wireless device (100) includes one or more processors (102) and one or more memories (104), and may additionally include one or more transceivers (106) and / or one or more antennas (108). The processor (102) controls the memory (104) and / or transceivers (106) and may be configured to implement the descriptions, functions, procedures, proposals, methods and / or flowcharts of operation disclosed in this document. For example, the processor (102) may process information within the memory (104) to generate a first information / signal and then transmit a wireless signal containing the first information / signal through the transceiver (106). Additionally, the processor (102) may receive a wireless signal containing a second information / signal through the transceiver (106) and then store information obtained from the signal processing of the second information / signal in the memory (104). The memory (104) may be connected to the processor (102) and may store various information related to the operation of the processor (102). For example, the memory (104) may store software code containing instructions for performing some or all of the processes controlled by the processor (102) or for performing the descriptions, functions, procedures, proposals, methods, and / or operation sequence diagrams disclosed in this document. Here, the processor (102) and the memory (104) may be part of a communication modem / circuit / chip designed to implement wireless communication technology (e.g., LTE, NR). The transceiver (106) may be connected to the processor (102) and may transmit and / or receive wireless signals through one or more antennas (108). The transceiver (106) may include a transmitter and / or receiver. The transceiver (106) may be combined with an RF (Radio Frequency) unit. In the present disclosure, a wireless device may refer to a communication modem / circuit / chip.

[0323] The second wireless device (200) includes one or more processors (202) and one or more memories (204), and may additionally include one or more transceivers (206) and / or one or more antennas (208). The processor (202) controls the memory (204) and / or transceivers (206) and may be configured to implement the descriptions, functions, procedures, proposals, methods and / or sequences of operation disclosed in this document. For example, the processor (202) may process information within the memory (204) to generate a third information / signal and then transmit a wireless signal containing the third information / signal through the transceiver (206). Additionally, the processor (202) may receive a wireless signal containing a fourth information / signal through the transceiver (206) and then store information obtained from the signal processing of the fourth information / signal in the memory (204). Memory (204) may be connected to the processor (202) and may store various information related to the operation of the processor (202). For example, memory (204) may store software code containing instructions for performing some or all of the processes controlled by the processor (202) or for performing the descriptions, functions, procedures, proposals, methods, and / or flowcharts of operation disclosed in this document. Here, the processor (202) and memory (204) may be part of a communication modem / circuit / chip designed to implement wireless communication technology (e.g., LTE, NR). A transceiver (206) may be connected to the processor (202) and may transmit and / or receive wireless signals through one or more antennas (208). The transceiver (206) may include a transmitter and / or receiver. The transceiver (206) may be interchangeable with an RF unit. In this disclosure, a wireless device may refer to a communication modem / circuit / chip.

[0324] Hereinafter, hardware elements of the wireless device (100, 200) will be described in more detail. Although not limited thereto, one or more protocol layers may be implemented by one or more processors (102, 202). For example, one or more processors (102, 202) may implement one or more layers (e.g., functional layers such as PHY, MAC, RLC, PDCP, RRC, SDAP). One or more processors (102, 202) may generate one or more Protocol Data Units (PDUs) and / or Service Data Units (SDUs) according to the descriptions, functions, procedures, proposals, methods, and / or flowcharts of operation disclosed in this document. One or more processors (102, 202) may generate messages, control information, data, or information according to the descriptions, functions, procedures, proposals, methods, and / or flowcharts of operation disclosed in this document. One or more processors (102, 202) may generate a signal (e.g., baseband signal) containing a PDU, SDU, message, control information, data, or information according to the functions, procedures, proposals, and / or methods disclosed in this document and provide it to one or more transceivers (106, 206). One or more processors (102, 202) may receive a signal (e.g., baseband signal) from one or more transceivers (106, 206) and may obtain a PDU, SDU, message, control information, data, or information according to the descriptions, functions, procedures, proposals, methods, and / or flowcharts disclosed in this document.

[0325] One or more processors (102, 202) may be referred to as a controller, microcontroller, microprocessor, or microcomputer. One or more processors (102, 202) may be implemented by hardware, firmware, software, or a combination thereof. For example, one or more Application Specific Integrated Circuits (ASICs), one or more Digital Signal Processors (DSPs), one or more Digital Signal Processing Devices (DSPDs), one or more Programmable Logic Devices (PLDs), or one or more Field Programmable Gate Arrays (FPGAs) may be included in one or more processors (102, 202). The descriptions, functions, procedures, proposals, methods, and / or flowcharts disclosed in this document may be implemented using firmware or software, and the firmware or software may be implemented to include modules, procedures, functions, etc. Firmware or software configured to perform the descriptions, functions, procedures, proposals, methods, and / or operation sequences disclosed in this document may be contained in one or more processors (102, 202) or stored in one or more memories (104, 204) and driven by one or more processors (102, 202). The descriptions, functions, procedures, proposals, methods, and / or operation sequences disclosed in this document may be implemented using firmware or software in the form of code, instructions, and / or sets of instructions.

[0326] One or more memories (104, 204) may be connected to one or more processors (102, 202) and may store various forms of data, signals, messages, information, programs, code, instructions, and / or commands. One or more memories (104, 204) may be composed of ROM, RAM, EPROM, flash memory, hard drive, registers, cache memory, computer read storage media, and / or combinations thereof. One or more memories (104, 204) may be located inside and / or outside of one or more processors (102, 202). Additionally, one or more memories (104, 204) may be connected to one or more processors (102, 202) through various technologies such as wired or wireless connections.

[0327] One or more transceivers (106, 206) may transmit user data, control information, wireless signals / channels, etc., as mentioned in the methods and / or operation flowcharts, etc., of this document to one or more other devices. One or more transceivers (106, 206) may receive user data, control information, wireless signals / channels, etc., as mentioned in the descriptions, functions, procedures, proposals, methods and / or operation flowcharts, etc., disclosed in this document from one or more other devices. For example, one or more transceivers (106, 206) may be connected to one or more processors (102, 202) and may transmit and receive wireless signals. For example, one or more processors (102, 202) may control one or more transceivers (106, 206) to transmit user data, control information, or wireless signals to one or more other devices. Additionally, one or more processors (102, 202) may control one or more transceivers (106, 206) to receive user data, control information, or wireless signals from one or more other devices. Additionally, one or more transceivers (106, 206) may be connected to one or more antennas (108, 208), and one or more transceivers (106, 206) may be configured to transmit and receive user data, control information, wireless signals / channels, etc., as described in the descriptions, functions, procedures, proposals, methods, and / or flowcharts of operation disclosed in this document through one or more antennas (108, 208). In this document, one or more antennas may be multiple physical antennas or multiple logical antennas (e.g., antenna ports). One or more transceivers (106, 206) can convert the received wireless signal / channel, etc. from an RF band signal to a baseband signal in order to process the received user data, control information, wireless signal / channel, etc. using one or more processors (102, 202).One or more transceivers (106, 206) can convert user data, control information, wireless signals / channels, etc. processed using one or more processors (102, 202) from baseband signals to RF band signals. To this end, one or more transceivers (106, 206) may include (analog) oscillators and / or filters.

[0328] FIG. 16 illustrates a signal processing circuit for a transmission signal according to one embodiment of the present disclosure. The embodiment of FIG. 16 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of the embodiments may be omitted.

[0329] Referring to FIG. 16, the signal processing circuit (1000) may include a scrambler (1010), a modulator (1020), a layer mapper (1030), a precoder (1040), a resource mapper (1050), and a signal generator (1060). Although not limited thereto, the operation / function of FIG. 16 may be performed in the processor (102, 202) and / or transceiver (106, 206) of FIG. 15. The hardware elements of FIG. 16 may be implemented in the processor (102, 202) and / or transceiver (106, 206) of FIG. 15. For example, blocks 1010 through 1060 may be implemented in the processor (102, 202) of FIG. 15. Additionally, blocks 1010 to 1050 may be implemented in the processor (102, 202) of FIG. 15, and block 1060 may be implemented in the transceiver (106, 206) of FIG. 15.

[0330] The codeword can be converted into a wireless signal through the signal processing circuit (1000) of FIG. 16. Here, the codeword is an encoded bit sequence of an information block. The information block may include a transmission block (e.g., UL-SCH transmission block, DL-SCH transmission block). The wireless signal can be transmitted through various physical channels (e.g., PUSCH, PDSCH).

[0331] Specifically, a codeword can be converted into a scrambled bit sequence by a scrambler (1010). The scrambled sequence used for scrambling is generated based on an initialization value, which may include ID information of a wireless device, etc. The scrambled bit sequence can be modulated into a modulation symbol sequence by a modulator (1020). The modulation method may include pi / 2-BPSK (pi / 2-Binary Phase Shift Keying), m-PSK (m-Phase Shift Keying), m-QAM (m-Quadrature Amplitude Modulation), etc. The complex modulation symbol sequence can be mapped to one or more transmission layers by a layer mapper (1030). The modulation symbols of each transmission layer can be mapped to the corresponding antenna port(s) by a precoder (1040) (precoding). The output z of the precoder (1040) can be obtained by multiplying the output y of the layer mapper (1030) by an N*M precoding matrix W. Here, N is the number of antenna ports and M is the number of transmission layers. Here, the precoder (1040) can perform precoding after performing transform precoding (e.g., DFT transform) on the complex modulation symbols. Additionally, the precoder (1040) can perform precoding without performing transform precoding.

[0332] A resource mapper (1050) can map the modulation symbols of each antenna port to a time-frequency resource. The time-frequency resource may include multiple symbols (e.g., CP-OFDMA symbols, DFT-s-OFDMA symbols) in the time domain and multiple subcarriers in the frequency domain. A signal generator (1060) generates a radio signal from the mapped modulation symbols, and the generated radio signal can be transmitted to another device through each antenna. To this end, the signal generator (1060) may include an Inverse Fast Fourier Transform (IFFT) module, a Cyclic Prefix (CP) inserter, a Digital-to-Analog Converter (DAC), a frequency uplink converter, etc.

[0333] The signal processing process for a received signal in a wireless device can be configured as the inverse of the signal processing process (1010–1060) of FIG. 16. For example, a wireless device (e.g., 100, 200 in FIG. 15) can receive a wireless signal from the outside through an antenna port / transceiver. The received wireless signal can be converted into a baseband signal through a signal restorer. To this end, the signal restorer may include a frequency downlink converter, an analog-to-digital converter (ADC), a CP remover, and a Fast Fourier Transform (FFT) module. Subsequently, the baseband signal can be restored into a codeword through a resource de-mapper process, a postcoding process, a demodulation process, and a de-scrambling process. The codeword can be restored into the original information block through decoding. Accordingly, a signal processing circuit (not shown) for a received signal may include a signal restorer, a resource de-mapper, a postcoder, a demodulator, a de-scrambler, and a decoder.

[0334] FIG. 17 illustrates a wireless device according to one embodiment of the present disclosure. The wireless device may be implemented in various forms depending on the use-example / service (see FIG. 14). The embodiment of FIG. 17 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0335] Referring to FIG. 17, the wireless device (100, 200) corresponds to the wireless device (100, 200) of FIG. 15 and may be composed of various elements, components, units / parts, and / or modules. For example, the wireless device (100, 200) may include a communication unit (110), a control unit (120), a memory unit (130), and additional elements (140). The communication unit may include a communication circuit (112) and transceiver(s) (114). For example, the communication circuit (112) may include one or more processors (102, 202) and / or one or more memories (104, 204) of FIG. 15. For example, the transceiver(s) (114) may include one or more transceivers (106, 206) and / or one or more antennas (108, 208) of FIG. 15. The control unit (120) is electrically connected to the communication unit (110), the memory unit (130), and additional elements (140) and controls the general operation of the wireless device. For example, the control unit (120) may control the electrical / mechanical operation of the wireless device based on a program / code / command / information stored in the memory unit (130). Additionally, the control unit (120) may transmit information stored in the memory unit (130) to an external (e.g., another communication device) via a wireless / wired interface through the communication unit (110), or store information received from an external (e.g., another communication device) via a wireless / wired interface through the communication unit (110) in the memory unit (130).

[0336] The additional element (140) can be configured in various ways depending on the type of wireless device. For example, the additional element (140) may include at least one of a power unit / battery, an input / output unit (I / O unit), a driving unit, and a computing unit. Although not limited thereto, the wireless device may be implemented in the form of a robot (Fig. 14, 100a), a vehicle (Fig. 14, 100b-1, 100b-2), an XR device (Fig. 14, 100c), a portable device (Fig. 14, 100d), a home appliance (Fig. 14, 100e), an IoT device (Fig. 14, 100f), a digital broadcasting terminal, a hologram device, a public safety device, an MTC device, a medical device, a fintech device (or financial device), a security device, a climate / environment device, an AI server / device (Fig. 14, 400), a base station (Fig. 14, 200), a network node, etc. Wireless devices can be used in a movable or fixed location depending on the use—e.g., service.

[0337] In FIG. 17, various elements, components, units / parts, and / or modules within the wireless device (100, 200) may be entirely interconnected via a wired interface, or at least partially connected via a communication unit (110). For example, within the wireless device (100, 200), the control unit (120) and the communication unit (110) may be connected via a wire, and the control unit (120) and the first unit (e.g., 130, 140) may be connected wirelessly via the communication unit (110). Additionally, each element, component, unit / part, and / or module within the wireless device (100, 200) may include one or more additional elements. For example, the control unit (120) may be composed of one or more sets of processors. For example, the control unit (120) may be composed of a set of a communication control processor, an application processor, an Electronic Control Unit (ECU), a graphics processing processor, a memory control processor, etc. As another example, the memory unit (130) may be composed of RAM (Random Access Memory), DRAM (Dynamic RAM), ROM (Read Only Memory), flash memory, volatile memory, non-volatile memory and / or a combination thereof.

[0338] Hereinafter, an implementation example of FIG. 17 will be described in more detail with reference to the drawings.

[0339] FIG. 18 illustrates a portable device according to one embodiment of the present disclosure. The portable device may include a smartphone, a smartpad, a wearable device (e.g., a smartwatch, smart glasses), a portable computer (e.g., a laptop, etc.). The portable device may be referred to as a Mobile Station (MS), User Terminal (UT), Mobile Subscriber Station (MSS), Subscriber Station (SS), Advanced Mobile Station (AMS), or Wireless Terminal (WT). The embodiment of FIG. 18 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0340] Referring to FIG. 18, the portable device (100) may include an antenna unit (108), a communication unit (110), a control unit (120), a memory unit (130), a power supply unit (140a), an interface unit (140b), and an input / output unit (140c). The antenna unit (108) may be configured as part of the communication unit (110). Blocks 110 to 130 / 140a to 140c each correspond to blocks 110 to 130 / 140 of FIG. 17.

[0341] The communication unit (110) can transmit and receive signals (e.g., data, control signals, etc.) with other wireless devices and base stations. The control unit (120) can control the components of the portable device (100) to perform various operations. The control unit (120) may include an AP (Application Processor). The memory unit (130) can store data / parameters / programs / code / commands required for the operation of the portable device (100). Additionally, the memory unit (130) can store input / output data / information, etc. The power supply unit (140a) supplies power to the portable device (100) and may include wired / wireless charging circuits, batteries, etc. The interface unit (140b) can support the connection between the portable device (100) and other external devices. The interface unit (140b) may include various ports (e.g., audio input / output ports, video input / output ports) for connection with external devices. The input / output unit (140c) can receive or output video information / signals, audio information / signals, data, and / or information input by a user. The input / output unit (140c) may include a camera, a microphone, a user input unit, a display unit (140d), a speaker and / or a haptic module, etc.

[0342] For example, in the case of data communication, the input / output unit (140c) acquires information / signals (e.g., touch, text, voice, image, video) input from the user, and the acquired information / signals can be stored in the memory unit (130). The communication unit (110) converts the information / signals stored in the memory into wireless signals and can directly transmit the converted wireless signals to another wireless device or to a base station. Additionally, the communication unit (110) can receive wireless signals from another wireless device or base station and then restore the received wireless signals to their original information / signals. The restored information / signals can be stored in the memory unit (130) and then output in various forms (e.g., text, voice, image, video, haptic) through the input / output unit (140c).

[0343] The claims described in this disclosure may be combined in various ways. For example, the technical features of the method claims of this disclosure may be combined to be implemented as a device, and the technical features of the device claims of this disclosure may be combined to be implemented as a method. Additionally, the technical features of the method claims of this disclosure and the technical features of the device claims of this disclosure may be combined to be implemented as a device, and the technical features of the method claims of this disclosure and the technical features of the device claims of this disclosure may be combined to be implemented as a method.< / null> < / null> < / null>

Claims

1. Regarding the method, A step of receiving base station-to-device control information including information related to a channel coding method from a base station; A step of receiving a base station-to-device transmission from the base station; A step of acquiring first data related to the base station-to-device transmission; and The method includes a step of attempting to decode the first data based on the above channel coding method, wherein A method in which the above first data relates to coded bits after encoding using the above channel coding method.

2. In Paragraph 1, The above channel coding method is a low-density parity check coding using a first base graph or a low-density parity check coding using a second base graph.

3. In Paragraph 1, The above channel coding method is a coding method different from low-density parity check coding using a first base graph and low-density parity check coding using a second base graph.

4. In Paragraph 1, A method in which the above-mentioned coded bit is a bit after encoding performed by the base station.

5. In Paragraph 1, Based on the fact that the above base station-to-device transmission is an initial transmission, the above channel coding method is a first coding method, and A method in which the above-mentioned base station-to-device transmission is a retransmission, and the above-mentioned channel coding method is a second coding method different from the above-mentioned first coding method.

6. In Paragraph 5, A step of obtaining third data by combining the first data with the second data in a soft buffer for the transmission block, based on the fact that the base station-to-device transmission is a retransmission and that decoding of the first data is unsuccessful; and The method further includes the step of attempting to decode the third data, wherein A method in which the combination of the second data and the first data is performed based on a second information bit associated with the second data and a first information bit associated with the first data.

7. In Paragraph 6, A method in which data associated with a parity bit in the soft buffer is flushed based on the fact that the base station-to-device transmission is a retransmission and that decoding of the first data is unsuccessful.

8. In Paragraph 6, A method in which, based on the fact that the base station-to-device transmission is a retransmission and that decoding of the first data is unsuccessful, the data associated with the parity bit in the soft buffer is replaced with the data associated with the parity bit associated with the first data.

9. In Paragraph 1, A method in which the transmission block associated with the base station-to-device transmission is a hyper-transmission block formed by aggregating multiple transmission blocks.

10. In Paragraph 9, Interleaving is performed on the above-mentioned coded bit, and A method based on the above interleaving, wherein information bits included in the coded bits are mapped in a form that is evenly distributed to a plurality of transmission resources in which the base station-to-device transmission is received.

11. In Paragraph 10, The above interleaving is performed based on a first duplicate version value, a method.

12. In Paragraph 1, The above-mentioned base station is a base station associated with a non-terrestrial network, a method.

13. In Paragraph 1, The above method is a method performed by a first device.

14. In the first device, 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 and storing instructions, Based on the above instructions being executed by the at least one processor, the first device: Receiving base station-to-device control information including information related to a channel coding method from a base station; Receiving base station-to-device transmission from the above base station; To obtain first data related to the above base station-to-device transmission; and Attempt to decode the first data based on the above channel coding method, The first device, wherein the above first data is associated with coded bits after encoding using the channel coding method.

15. In a processing device configured to control a first device, At least one processor; and It includes at least one memory connected to the above-mentioned at least one processor and storing instructions, Based on the above instructions being executed by the at least one processor, the first device: Receiving base station-to-device control information including information related to a channel coding method from a base station; Receiving base station-to-device transmission from the above base station; To obtain first data related to the above base station-to-device transmission; and Attempt to decode the first data based on the above channel coding method, A processing device in which the above first data is associated with coded bits after encoding using the above channel coding method.

16. As a non-transient computer-readable storage medium recording instructions, When executed, the above commands cause the first device: Receiving base station-to-device control information including information related to a channel coding method from a base station; Receiving base station-to-device transmission from the above base station; To obtain first data related to the above base station-to-device transmission; and Attempt to decode the first data based on the above channel coding method, A non-transient computer-readable storage medium in which the first data is associated with coded bits after encoding using the channel coding method.

17. Regarding the method, A step of transmitting base station-to-device control information including information related to a channel coding method to a first device; A step of obtaining coded bits based on an encoding using the above-mentioned channel coding method; and A method comprising the step of performing a transmission operation for the coded bit to the first device.

18. In Paragraph 17, Decoding of the first data associated with the above-mentioned coded bit is attempted by the first device based on the channel coding method, and Based on the fact that the above transmission operation is related to initial transmission, the channel coding method is a first coding method, and A method in which the channel coding method is a second coding method different from the first coding method, based on the fact that the above transmission operation is related to retransmission.

19. In the second device, 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 and storing instructions, Based on the execution of the above instructions by the at least one processor, the second device: To cause the first device to transmit base station-to-device control information including information related to a channel coding method; Acquiring coded bits based on encoding using the above channel coding method; and A second device that enables the first device to perform a transmission operation for the coded bit.

20. In Paragraph 19, Decoding of the first data associated with the above-mentioned coded bit is attempted by the first device based on the channel coding method, and Based on the fact that the above transmission operation is related to initial transmission, the channel coding method is a first coding method, and A second device, wherein the channel coding method is a second coding method different from the first coding method, based on the fact that the above transmission operation is related to retransmission.

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