Bandwidth configuration for transmission and reception

Abstract

A first device may receive a synchronization signal and a physical broadcast channel from a second device, and / or the first device may receive system information from the second device within an initial downlink (DL) bandwidth part (BWP). For example, the initial DL BWP may be configured to include, on the basis of (i) a frequency domain configured in the physical broadcast channel and (ii) the synchronization signal and a frequency domain of the physical broadcast channel, the synchronization signal and the frequency domain of the physical broadcast channel.

Description

Bandwidth settings for transmission and reception

[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 may be provided. For example, the method may include at least one of: a first device receiving a synchronization signal and a physical broadcast channel from a second device; and / or the first device receiving system information from the second device within an initial DL (downlink) BWP (bandwidth part). For example, the initial DL BWP may be configured to include a frequency range of the synchronization signal and the physical broadcast channel based on (i) a frequency range set in the physical broadcast channel and (ii) a frequency range of the synchronization signal and the physical broadcast channel.

[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, the instructions may cause the first device to perform an operation based on execution by the at least one processor. For example, the operation may include at least one of: receiving a synchronization signal and a physical broadcast channel from a second device; and / or receiving system information from the second device within an initial DL (downlink) BWP (bandwidth part). For example, the initial DL BWP may be configured to include a frequency range of the synchronization signal and the physical broadcast channel based on (i) a frequency range set in the physical broadcast channel and (ii) a frequency range of the synchronization signal and the physical broadcast channel.

[0007] According to one embodiment of the present disclosure, a processing device may be provided. For example, the processing device may include at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, the instructions may cause a first device to perform an operation based on execution by the at least one processor. For example, the operation may include at least one of: receiving a synchronization signal and a physical broadcast channel from a second device; and / or receiving system information from the second device within an initial DL (downlink) BWP (bandwidth part). For example, the initial DL BWP may be configured to include a frequency range of the synchronization signal and the physical broadcast channel based on (i) a frequency range set in the physical broadcast channel and (ii) a frequency range of the synchronization signal and the physical broadcast channel.

[0008] According to one embodiment of the present disclosure, a non-transient computer-readable storage medium recording instructions may be provided. For example, the instructions may cause a first device to perform an operation based on execution. For example, the operation may include at least one of: receiving a synchronization signal and a physical broadcast channel from a second device; and / or receiving system information from the second device within an initial DL (downlink) BWP (bandwidth part). For example, the initial DL BWP may be configured to include a frequency range of the synchronization signal and the physical broadcast channel based on (i) a frequency range set in the physical broadcast channel and (ii) a frequency range of the synchronization signal and the physical broadcast channel.

[0009] FIG. 1 illustrates a communication procedure between devices according to one embodiment of the present disclosure.

[0010] FIG. 2 shows a radio protocol architecture according to one embodiment of the present disclosure.

[0011] FIG. 3 shows the structure of a wireless frame according to one embodiment of the present disclosure.

[0012] FIG. 4 shows a slot structure of a frame according to one embodiment of the present disclosure.

[0013] FIG. 5 shows an example of a BWP according to one embodiment of the present disclosure.

[0014] FIG. 6 shows a communication structure that can be provided in a 6G system according to one embodiment of the present disclosure.

[0015] FIG. 7 illustrates an example of a communication scenario based on a 6G system according to an embodiment of the present disclosure.

[0016] FIGS. 8 and 9 illustrate a non-terrestrial network scenario according to one embodiment of the present disclosure.

[0017] FIG. 10 shows an example of an initial DL (downlink) BWP (bandwidth) according to one embodiment of the present disclosure.

[0018] FIG. 11 illustrates a method for setting and / or determining an initial DL (downlink) BWP (bandwidth) in units of specific granularity according to one embodiment of the present disclosure.

[0019] FIG. 12 illustrates a procedure performed by a first device according to one embodiment of the present disclosure.

[0020] FIG. 13 illustrates a procedure performed by a second device according to one embodiment of the present disclosure.

[0021] FIG. 14 shows a communication system (1) according to one embodiment of the present disclosure.

[0022] FIG. 15 shows a wireless device according to one embodiment of the present disclosure.

[0023] FIG. 16 shows a signal processing circuit for a transmission signal according to one embodiment of the present disclosure.

[0024] FIG. 17 shows a wireless device according to one embodiment of the present disclosure.

[0025] FIG. 18 shows a portable device according to one embodiment of the present disclosure.

[0026] 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."

[0027] 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."

[0028] 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."

[0029] 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."

[0030] 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 (i.e., PDCCH)," "PDCCH" may be proposed as an example of "control information."

[0031] In the following explanation, 'when, if, in case of' can be replaced with 'based on'.

[0032] Technical features described individually within one drawing in this disclosure may be implemented individually or simultaneously.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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), and 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.

[0037] 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.

[0038] 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.

[0039] 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).

[0040] 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.

[0041] 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).

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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, e.g., 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.

[0047] 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.

[0048] 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).

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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).

[0053] 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.

[0054] 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).

[0055] 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).

[0056] 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.

[0057] 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

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] For example, BWP is point A, offset from point A (N start BWP ) and bandwidth (N size BWP It 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.

[0067] 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.

[0068] 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, large-scale 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.

[0069] - 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.

[0070] - 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.

[0071] - Large-scale MIMO technology

[0072] - Hologram beamforming (HBF)

[0073] - Optical wireless technology

[0074] - Free Space Optical Transmission Backhaul Network (FSO backhaul network)

[0075] - Quantum communication

[0076] - Cell-free communication

[0077] - Integration of wireless information and power transmission

[0078] - Integration of wireless communication and sensing

[0079] - Integrated access and backhaul network

[0080] - Big data analysis

[0081] - Reconfigurable intelligent metasurface

[0082] - Metaverse

[0083] - blockchain

[0084] - 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).

[0085] - 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).

[0086] - 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.

[0087] - 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.

[0088] - 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.

[0089] 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.

[0090] 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.

[0091] FIGS. 8 and 9 illustrate a non-terrestrial network scenario according to one embodiment of the present disclosure. The embodiment of FIGS. 8 and 9 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of said embodiment may be omitted.

[0092] FIG. 8 illustrates a non-terrestrial network scenario based on a transparent payload, and FIG. 9 illustrates a non-terrestrial network scenario based on a regenerative payload. For example, a non-terrestrial network may generally include the following elements.

[0093] - One or more satellite gateways connecting non-terrestrial networks to public data networks

[0094] - Feeder link or wireless link between the satellite gateway and the satellite (or UAS platform)

[0095] - Service link or wireless link between user equipment and satellite (or UAS platform)

[0096] - A satellite (or UAS platform) capable of implementing transparent or regenerated (including onboard processing) payloads. For example, the satellite (or UAS platform) can generate multiple beams across a given 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 UAS platform) may vary depending on the onboard antenna diagram and the minimum elevation angle. For example, for a transparent payload, radio frequency filtering, frequency conversion, and amplification may be performed. Thus, the repeating waveform signal in the payload may not be altered. For example, for a regenerated payload, radio frequency filtering, frequency conversion, and amplification, as well as demodulation / decoding, switching and / or routing, and coding / modulation may be performed. This can effectively be equivalent to equipping the satellite (or UAS platform) with all base station functions.

[0097] - Optionally, Inter-satellite Link (ISL)

[0098] - User equipment can be serviced by a satellite (or UAS platform) within the target service area.

[0099] Meanwhile, in the next-generation system, the operation of the terminal can be classified into the following operation states.

[0100] - SSB detection / reception in a synch raster (Perch): For example, the terminal can obtain the cell's physical ID and synchronize time / frequency via the PSS (primary synchronization signal) and SSS (secondary synchronization signal), and the terminal can obtain minimal system information (e.g., MIB) via the PBCH (physical broadcast channel).

[0101] - DL reception operation based on Type0-CSS (common search space) configured in SSB and / or Type0A / 1 / 2 CSS configured in SIB1 and / or RACH operation in UL carrier configured in SIB1 (Anchor): For example, Type0-CSS may be a search space for receiving SIB1. For example, the terminal may monitor Type0-CSS within the initial DL (downlink) BWP (bandwidth part) based on configuration information obtained via PBCH (e.g., pdcch-ConfigSIB1 in MIB), thereby receiving PDSCH containing SIB1 scheduled by SI-RNTI (system information - radio network temporary identifier). For example, Type0A / 1 / 2 CSS may be a search space for receiving other system information (e.g., SIB2, SIB3, etc.), paging, or random access responses after receiving SIB1.

[0102] - Data communication based on CSS / USS (UE-specific search space) on PCell (primary cell) and / or USS on SCell (secondary cell)

[0103] Meanwhile, in the next-generation system, low-cost or low-capability terminals may be supported by default, and advanced terminals may achieve enhanced performance through specific adaptation processes in the above-mentioned basic operation. Meanwhile, in the conventional system, the frequency domain of the SSB (e.g., synchronization signal and PBCH) is determined by the synchronization raster, whereas the frequency domain of the initial DL BWP for receiving system information may be set separately by the MIB. In this case, the frequency domain of the SSB and the frequency domain of the initial DL BWP may not overlap with each other or may be set separately. Under this structure, the low-cost or low-capability terminal must necessarily perform an RF (radio frequency) retuning operation to shift the receiving frequency band in order to receive the system information after receiving the SSB. In this case, a problem of increased delay may occur due to the RF retuning process. If separate settings are introduced between low-cost or low-capability terminals and advanced terminals, problems such as increased signaling overhead and increased system complexity may occur in terms of networking. In the present disclosure, a method for setting a DL BWP and an apparatus supporting the same are proposed.

[0104] For example, the initial DL BWP may be a structure comprising a transmission resource area (e.g., PDCCH and / or PDSCH and / or CORESET (control resource set)) for the frequency domain where the synchronization signal and / or PBCH is transmitted and / or RMSI (e.g., remaining system information and / or SIB1) and / or OSI (other system information) and / or DL ​​transmission resource area for the initial access process or random access (e.g., PDCCH and / or PDSCH for RAR (random access response) and / or PDCCH and / or PDSCH and / or CORESET for Msg4).

[0105] FIG. 10 illustrates an example of an initial DL (downlink) BWP (bandwidth) according to one embodiment of the present disclosure. The embodiment of FIG. 10 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.

[0106] Referring to FIG. 10, the initial DL BWP can be configured to include a frequency range in which a synchronization signal and / or PBCH is transmitted.

[0107] For example, the initial DL BWP may include a frequency range in which a synchronization signal and / or a PBCH is transmitted and / or a frequency range indicated / set by the PBCH.

[0108] For example, the CP structure / length and / or SCS (subcarrier spacing) for the synchronization signal and / or PBCH and / or PDCCH and / or PDSCH within the initial DL BWP may all be the same, and / or said SCS may be determined / recognized by the terminal through the detection of the synchronization signal and / or PBCH.

[0109] For example, even in time domains where transmission for synchronization signals and / or PBCH and / or RMSI (e.g., remaining system information and / or SIB1) and / or OSI (other system information) is not performed, the initial DL BWP may include a frequency domain corresponding to the above.

[0110] For example, in determining and / or setting the initial DL BWP, the process of including frequency resources for the whole or part thereof may be performed in units of specific granularity. For example, even if the frequency resources for the whole or part thereof overlap with a specific granularity unit and some areas do not overlap with the frequency area, the areas may be included in the initial DL BWP.

[0111] FIG. 11 illustrates a method for setting and / or determining an initial DL (downlink) BWP (bandwidth) in units of specific granularity according to one embodiment of the present disclosure. The embodiment of FIG. 11 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of said embodiments may be omitted.

[0112] Referring to FIG. 11, in determining and / or setting the initial DL BWP, the process of including frequency resources for the whole or part thereof may be performed in a specific granularity unit. For example, even if the frequency resources for the whole or part thereof overlap with a specific granularity unit and some areas do not overlap with the frequency area, the some areas may be included in the initial DL BWP.

[0113] For example, the specific granularity may be a resource block (RB) unit and / or a resource block group (RBG) unit (e.g., RB group), and / or the RBG may be a PDCCH resource set unit (e.g., CORESET (control resource set)) for RMSI (e.g., remaining system information and / or SIB1) and / or OSI (other system information) and / or a PDSCH resource allocation unit and / or a transmission resource unit and / or a multiple of the above combination.

[0114] According to various embodiments of the present disclosure, the initial DL BWP may be configured to include the frequency domain of the SSB, and / or the resource boundaries of the control domain (e.g., CORESET) and the data domain (e.g., PDSCH) may coincide with the RBG unit. Accordingly, the terminal can receive system information without separate RF retuning after receiving the SSB, thereby reducing the power consumption of the terminal and minimizing connection delay. In addition, as the initial DL BWP is configured with the RBG unit, frequency utilization efficiency can be maximized and the complexity of blind decoding of the terminal can be reduced.

[0115] Meanwhile, in the next-generation system, a BWP having a relatively wider BW than the initial DL BWP may be configured / activated for an advanced terminal. For example, in the above situation, the advanced terminal can expect to receive synchronization signals and / or PBCH and / or system information and / or paging information, etc., within the initial DL BWP regardless of the active DL BWP. Meanwhile, for convenience, an additional DL BWP may be in a form that includes the initial DL BWP.

[0116] In the embodiments of the present disclosure, the initial DL BWP concept was used for convenience of explanation, but the proposal of the present disclosure can be extended to the frequency range used at least during initial connection, such as anchor carriers and anchor cells.

[0117] Meanwhile, in the case of NTN communication methods, signal attenuation due to path loss can be significant as the distance between the terminal and the base station or NTN node becomes considerably long, and in such situations (especially when the target block error rate (BLER) is low), it may be advantageous for the slope of the BLER curve to be steep relative to the signal-to-noise ratio (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 lowering the mother code rate.

[0118] In the embodiments of the present disclosure, the cell-by-cell or inter-cell relationship may be extended to the beam footprint-by-beam footprint or inter-beam footprint relationship and may be applied to / understood by the proposal of the present disclosure.

[0119] In the embodiments of the present disclosure, cell-by-cell or inter-cell relationships are extended to carrier-by-carrier or inter-carrier relationships and can be applied to / understood by the proposal of the present disclosure.

[0120] In an embodiment of the present disclosure, the method of managing UL channels / signals through a service link (link between an NTN node and a terminal) associated with a different cell or carrier can be extended to a method of managing DL channels / signals and / or UL channels / signals through a feeder link (link between an NTN node and a (ground) gateway) associated with a different cell or carrier.

[0121] Meanwhile, in situations where system bandwidth is limited, performing frequency division multiplexing (FDM) on synchronization signals and / or the PBCH and the PDCCH and / or PDSCH (for system information, etc.) can be inefficient. On the other hand, if supported by time division multiplexing (TDM), there may be a problem with long latency during initial connection.

[0122] Meanwhile, in conventional systems, the synchronization signal and / or the PDCCH monitoring occasion linked to the PBCH block may be a different symbol in the same slot as the synchronization block and / or may be after several milliseconds, such as 5 msec. In this case, if the number of synchronization blocks actually used within a cycle is small, the mutual slot offset may be unnecessarily long. Consequently, the power saving effect may be negligible as the NTN node cannot enter deep sleep, and / or its size may not be suitable or may be inefficient for use in other cells.

[0123] Meanwhile, in a conventional system, when at least FR1 and / or when the synchronization block and SIB1 PDCCH or CORESET or search space are set to TDM, the DCI transmitted through the PDCCH for at least SIB1 and / or CORESET0 and / or Type-CSS and the PDSCH scheduled with said DCI may be restricted to the same slot. In the above situation, if the synchronization block and SIB1 PDCCH are transmitted in the same slot, it may be impossible or inefficient to transmit the SIB1 PDSCH in the same slot as the synchronization block, at least in the narrowband. If the synchronization block and SIB1 PDCCH are transmitted in different slots, there is a problem in that the time difference between the synchronization block and SIB1 PDCCH / PDSCH becomes unnecessarily large.

[0124] Accordingly, the next-generation system needs to be designed efficiently by simultaneously considering resource multiplexing for the synchronization signal and / or PBCH and / or (SIB1) PDCCH and / or (SIB1) PDSCH.

[0125] In an embodiment of the present disclosure, SIB1 PDCCH and SIB1 PDSCH may designate a SIB1 scheduling or a transmission associated with SIB1, and / or may be associated with a specific CORESET (e.g., CORESET0 or an initial CORESET), and / or may be associated with a specific RNTI (e.g., SI-RNTI), and / or may indicate association with a specific search space (e.g., Type0-CSS and / or a search space set / directed by PBCH).

[0126] For example, the search space and / or CORESET may differ for different synchronization signals and / or PBCH blocks (at least for acquiring SIB1).

[0127] For example, the terminal can determine the PDCCH search space for it based on the synchronization signal and / or PBCH acquired from the MIB and / or the synchronization signal and / or PBCH block information set / instructed by the base station.

[0128] For example, the base station may set the corresponding PDCCH search space differently for each synchronization signal and / or PBCH block and / or for the same synchronization signal and / or PBCH block index and / or for different synchronization signals and / or PBCH cycles.

[0129] For example, the base station can set / instruct information about the search space corresponding to the synchronization signal and / or PBCH and / or information about the PDCCH monitoring opportunity through the synchronization signal and / or MIB and / or PBCH.

[0130] For example, after receiving and / or detecting and / or decoding a synchronization signal and / or MIB and / or PBCH, the terminal may determine information regarding a search space corresponding to the synchronization signal and / or PBCH and / or a PDCCH monitoring opportunity, and / or perform PDCCH monitoring. For example, the terminal may attempt to detect the PDCCH from a resource that is temporally ahead of the synchronization signal and / or PBCH through soft bit buffering, etc.

[0131] For example, the information regarding the PDCCH monitoring may include a slot offset and / or symbol offset where the PDCCH monitoring opportunity starts relative to the slot where the synchronization signal and / or MIB and / or PBCH are transmitted and / or the period of the PDCCH monitoring opportunity and / or the number of PDCCH monitoring opportunities within the period and / or the time difference between them (e.g., symbol gap or difference in the number of symbols between starting symbols) and / or a CORESET setting (e.g., CORESET duration, frequency domain).

[0132] For example, the symbol offset may be the position of a symbol relative to the first symbol of the slot indicated in the synchronization signal and / or PBCH and / or the position of a symbol relative to the first symbol of the slot in which the synchronization signal and / or PBCH is transmitted and / or the position of a symbol relative to the symbol following the last symbol of the synchronization signal and / or PBCH block.

[0133] For example, the base station may set / instruct the terminal to disable PDCCH monitoring associated with the synchronization signal and / or PBCH within or within the synchronization signal and / or PBCH cycle.

[0134] Meanwhile, the terminal may fail to detect and / or decode the synchronization signal and / or PBCH in another cycle after previously detecting the synchronization signal and / or PBCH.

[0135] For example, if the terminal fails to detect and / or decode the synchronization signal and / or PBCH within the synchronization signal and / or PBCH cycle, the terminal may not be required to perform monitoring during the PDCCH monitoring opportunity associated with the synchronization signal and / or PBCH within the cycle or within the cycle.

[0136] For example, information about the next synchronization signal and / or PBCH cycle or the PDCCH monitoring opportunity associated with the synchronization signal and / or PBCH within the cycle, and / or information about the CORESET, may be provided to the terminal through the PDCCH and / or PDSCH transmitted within the synchronization signal and / or PBCH cycle or through the RRC setting.

[0137] In an embodiment of the present disclosure, CORESET may include or represent frequency domain and / or time resources (in a specific PDCCH monitoring opportunity) as a set of resources for a PDCCH and / or PDCCH candidate, and / or search space may name a set of starting locations of a PDCCH monitoring opportunity.

[0138] Meanwhile, in narrowband NTN operation, FDM between the synchronization signal and / or PBCH block and the SIB1 PDSCH may be inefficient, and not allowing the transmission of the SIB1 PDCCH in the slot where the synchronization signal and / or PBCH block is transmitted may again be inefficient in terms of the active beam ratio of the NTN node. For example, the SIB1 PDCCH may be transmitted in the slot where the synchronization signal and / or PBCH block is transmitted, but the transmission of the SIB1 PDSCH scheduled by the SIB1 PDCCH may need to be allowed in a slot other than the slot where the synchronization signal and / or PBCH block is transmitted.

[0139] For example, an additional slot offset may be applied to the time resource allocation for SIB1 PDSCH, and / or whether the slot offset is applied and / or the slot offset value may be indicated via a synchronization signal and / or PBCH, and / or through a separate field of DCI transmitted to SIB1 PDCCH or by reinterpreting a specific field.

[0140] Meanwhile, maintaining the PBCH DMRS (demodulation reference signal) as is may be advantageous in terms of other measurements. In the above case, the PBCH DMRS can be used to allow channel estimation for PDCCH / PDSCH, or additional rate-matching or puncturing can be considered.

[0141] For example, in the first time resource (or TTI), the synchronization signal and / or PBCH block may occupy the first frequency resource area, and / or in the second time resource (or TTI), the synchronization signal and / or PBCH block may occupy the second frequency resource area.

[0142] For example, the first time resource and the second time resource may both exist within the same synchronization signal and / or PBCH block cycle.

[0143] For example, the size of the first frequency resource region may be equal to and / or larger than the size of the second frequency resource region.

[0144] For example, in the second time resource (or TTI), PDCCH and / or PDSCH may be transmitted in a third frequency domain.

[0145] For example, the third frequency region may overlap with the first frequency resource region and / or not overlap with the second frequency region.

[0146] For example, the second time resource and / or second frequency resource regions may be predefined and / or vary depending on the synchronization signal and / or PBCH block index.

[0147] For example, depending on the synchronization signal and / or PBCH transmission period, the first time resource and / or first frequency resource area or the second time resource and / or second frequency resource area may be applied differently.

[0148] For example, depending on whether the first time resource and / or first frequency resource area or the second time resource and / or second frequency resource area is used, the mapping method of the synchronization signal (PSS and / or SSS) (e.g., relative time and / or frequency and / or code resource location) may differ.

[0149] For example, the terminal can determine whether the PBCH transmission corresponds to a first time resource and / or first frequency resource area or a second time resource and / or second frequency resource area based on the synchronization signal detection and / or mapping method of the synchronization signals, and perform PBCH detection and / or demodulation and / or decoding according to the resource type.

[0150] Exceptionally, even when the PBCH uses a second time resource and / or second frequency resource range, the PBCH DMRS may be transmitted using a first frequency resource range. The rationale for this is to maintain the accuracy of PBCH DMRS-based measurements and / or to perform PBCH DMRS-based measurements and / or reports without the detection of a synchronization signal.

[0151] For example, in the above case, at least for PDSCH, it may be determined that the RE mapped to the (additional) PBCH DMRS is excluded from the PDSCH transmission resource and / or actual transmission may not be performed through puncturing.

[0152] In embodiments of the present disclosure, the omission of transmission and / or (temporary) reduction of transmission resources for all or part of the synchronization signal and / or PBCH resources may be limited to cases not for cell-defining purposes and / or cases where the synchronization signal and / or PBCH resources are additionally provided through separate settings.

[0153] For example, even if the RE for at least one PDCCH candidate overlaps with a synchronization signal and / or a PBCH block resource, if all REs of the PDCCH candidate overlap only with a guard band or guard RE within the block, the terminal can perform PDCCH monitoring for the PDCCH candidate.

[0154] For example, at least several guard bands or guard REs adjacent to the synchronization signal in the frequency axis may be retained and may not be available as PDCCH and / or PDSCH resources. In the above situation, some of the PDCCH and / or PDSCH transmission resources may be reduced, rate-matched, and / or punctured.

[0155] For example, if the numerology or subcarrier spacing (SCS) for the synchronization signal and / or PBCH differs from the numerology or SCS for PDCCH, adjacent REs along the mutual frequency axis may be set as guards. For example, the guard REs may be the SCS reference of the SSB and / or the SCS reference of the PDCCH.

[0156] For example, for a PDCCH candidate, a resource element group (REG) that overlaps with a synchronization signal (including or excluding guard RE) and / or a PBCH block may be excluded from the PDCCH transmission resources. For example, a REG that does not overlap with a synchronization signal (including or excluding guard RE) and / or a PBCH block may be used for PDCCH transmission. For example, when reducing or puncturing a portion of the PDCCH candidate resources, the unit may be a REG unit.

[0157] In embodiments of the present disclosure, the multiplexing method between the PDCCH resource and the synchronization signal and / or PBCH resource may be applied differently depending on the RNTI and / or CORESET and / or search space associated with the PDCCH. For example, embodiments of the present disclosure may be applied to SI-RNTI and / or P-RNTI (paging - radio network temporary identifier) ​​and / or RA-RNTI (random access - radio network temporary identifier), and / or CSS or CSS for SIB1 or SIB (e.g., Type0-CSS), and / or CORESET#0.

[0158] Meanwhile, regarding PDSCH mapping, it is necessary to minimize the puncturing of coded complex values ​​corresponding to information bits based on at least RV0 (redundancy version 0) at the same time. Additionally, due to PDSCH puncturing, there may be PRBs in certain OFDM symbols that do not have PDSCH DMRS.

[0159] For example, for a PDSCH resource that overlaps with or is a subset thereof and / or does not overlap in time with the frequency domain of a synchronization signal and / or a PBCH block, the terminal may derive a (wireless) channel across the resource that overlaps or is a subset of the PDSCH from the PBCH DMRS, and / or the antenna port(s) for the PBCH (DMRS) and the antenna port(s) for the PDSCH transmission resource may be co-located in terms of delay spread, Doppler spread, Doppler shift, average gain, average delay, spatial Rx parameters, etc.

[0160] For example, a specific common reference signal (RS) may be transmitted together in a slot where at least a synchronization signal and / or a PBCH block is transmitted, and / or said specific RS may be used for channel estimation for the PBCH and / or for channel estimation for the PDCCH and / or PDSCH transmitted within the slot where the synchronization signal and / or a PBCH block is transmitted. For example, that said it may be used for channel estimation means that the antenna port(s) for said specific RS and the antenna port(s) for the PBCH, and / or the antenna port(s) for said PDCCH and / or the antenna port(s) for said PDSCH are all co-located in terms of delay spread, Doppler spread, Doppler shift, average gain, average delay, spatial Rx parameters, etc.

[0161] For example, the terminal may exclude time and / or frequency resources for the synchronization signal and / or PBCH transmission block for which the terminal has acquired the MIB from the PDSCH transmission resources and rate-match the remaining resources. For example, the PDSCH may be a PDSCH for the SIB and / or including SIB1.

[0162] For example, (where the numerology or SCS for the synchronization signal and / or PBCH transmission block and the numerology or SCS for the PDSCH are different) a portion of the time and / or frequency domain adjacent to the synchronization signal and / or PBCH transmission block may be additionally excluded from the PDSCH resource.

[0163] For example, if a PDSCH transmission overlaps wholly or partially with a synchronization signal and / or a PBCH transmission block, the region where a coded complex symbol associated with an information bit is mapped based on a specific RV (e.g., RV0) for the PDSCH may start from the symbol following the synchronization signal and / or the PBCH transmission block.

[0164] For example, if a PDSCH transmission overlaps wholly or partially with a synchronization signal and / or a PBCH transmission block, mapping for the PDSCH may start from the symbol following the synchronization signal and / or the PBCH transmission block, and / or mapping for the PDSCH may be performed for the symbols of the remaining synchronization signal and / or the PBCH transmission block and / or the symbols preceding it after mapping up to the last symbol for the PDSCH.

[0165] For example, if a PDSCH transmission overlaps wholly or partially with a synchronization signal and / or a PBCH transmission block, the mapping of symbols to the synchronization signal and / or PBCH transmission block may be delayed until after the mapping of the remaining PDSCH symbols during PDSCH mapping.

[0166] 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 NTN).

[0167] Various embodiments of the present disclosure may be applied differently depending on the link type (DL, UL, SL) and / or the data type (SIB, group cast, unicast) and / or the search space type (CSS, USS) where the scheduling PDCCH is detected and / or the base station node type and / or altitude and / or whether there is a power constraint. For example, combinations of various embodiments of the present disclosure may be applied only when associated with SIB transmission or may not be applied exceptionally.

[0168] FIG. 12 illustrates a procedure 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 some descriptions, functions, procedures, suggestions, methods, and / or operations of said embodiments may be omitted.

[0169] Referring to FIG. 12, in step S1210, the first device may receive a synchronization signal and a physical broadcast channel from the second device. In step S1220, the first device may receive system information from the second device within an initial DL (downlink) BWP (bandwidth part). For example, the initial DL BWP may be configured to include the frequency range of the synchronization signal and the physical broadcast channel based on (i) a frequency range set in the physical broadcast channel and (ii) the frequency range of the synchronization signal and the physical broadcast channel.

[0170] For example, the initial DL BWP may be configured to include the frequency range set in the physical broadcast channel and the frequency range of the synchronization signal and the physical broadcast channel.

[0171] For example, it may not be allowed for the synchronization signal and the physical broadcast channel to be mapped to a frequency range outside the initial DL BWP.

[0172] For example, the cyclic prefix (CP) length or CP structure for the synchronization signal, the physical broadcast channel, the physical downlink control channel, and the physical downlink shared channel may be the same within the initial DL BWP.

[0173] For example, the above initial DL BWP can be set as a unit of resource blocks.

[0174] For example, the initial DL BWP may be set as a unit of a resource block group. For example, the unit of the resource block group may be a multiple of the resource set for the system information. For example, the unit of the resource block group may be a multiple of the resource set for the physical downlink control channel. For example, the unit of the resource block group may be a multiple of the resource set for the physical downlink shared channel. For example, the unit of the resource block group may be a multiple of the combination of the resource set for the system information and the resource set for the physical downlink control channel.

[0175] For example, based on the fact that the frequency domain of the synchronization signal and the physical broadcast channel overlaps with at least one resource block within the resource block group, the initial DL BWP may be configured to include the remaining resource blocks within the resource block group. For example, the remaining resource blocks may be resource blocks that do not overlap with the frequency domain of the synchronization signal and the physical broadcast channel.

[0176] For example, the first device may be a terminal, and the second device may be a base station, a non-ground network node, or a satellite.

[0177] The proposed method above may be applied to a device according to various embodiments of the present disclosure. For example, a processor (102) of a first device (100) may control a transceiver (106) to receive a synchronization signal and a physical broadcast channel from a second device, and / or the processor (102) of the first device (100) may control the transceiver (106) to receive system information from the second device within an initial DL (downlink) BWP (bandwidth part). For example, the initial DL BWP may be configured to include a frequency range of the synchronization signal and the physical broadcast channel based on (i) a frequency range set in the physical broadcast channel and (ii) a frequency range of the synchronization signal and the physical broadcast channel.

[0178] 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, the instructions may cause the first device to perform an operation based on execution by the at least one processor. For example, the operation may include at least one of: receiving a synchronization signal and a physical broadcast channel from a second device; and / or receiving system information from the second device within an initial DL (downlink) BWP (bandwidth part). For example, the initial DL BWP may be configured to include a frequency range of the synchronization signal and the physical broadcast channel based on (i) a frequency range set in the physical broadcast channel and (ii) a frequency range of the synchronization signal and the physical broadcast channel.

[0179] According to one embodiment of the present disclosure, a processing device may be provided. For example, the processing device may include at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, the instructions may cause a first device to perform an operation based on execution by the at least one processor. For example, the operation may include at least one of: receiving a synchronization signal and a physical broadcast channel from a second device; and / or receiving system information from the second device within an initial DL (downlink) BWP (bandwidth part). For example, the initial DL BWP may be configured to include a frequency range of the synchronization signal and the physical broadcast channel based on (i) a frequency range set in the physical broadcast channel and (ii) a frequency range of the synchronization signal and the physical broadcast channel.

[0180] According to one embodiment of the present disclosure, a non-transient computer-readable storage medium recording instructions may be provided. For example, the instructions may cause a first device to perform an operation based on execution. For example, the operation may include at least one of: receiving a synchronization signal and a physical broadcast channel from a second device; and / or receiving system information from the second device within an initial DL (downlink) BWP (bandwidth part). For example, the initial DL BWP may be configured to include a frequency range of the synchronization signal and the physical broadcast channel based on (i) a frequency range set in the physical broadcast channel and (ii) a frequency range of the synchronization signal and the physical broadcast channel.

[0181] FIG. 13 illustrates a procedure 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 some descriptions, functions, procedures, suggestions, methods, and / or operations of said embodiments may be omitted.

[0182] Referring to FIG. 13, in step S1310, the second device may transmit a synchronization signal and a physical broadcast channel to the first device. In step S1320, the second device may transmit system information to the first device within an initial DL (downlink) BWP (bandwidth part). For example, the initial DL BWP may be configured to include a frequency range in which the synchronization signal and the physical broadcast channel are transmitted, based on (i) a frequency range set in the physical broadcast channel and (ii) a frequency range in which the synchronization signal and the physical broadcast channel are transmitted.

[0183] For example, the initial DL BWP may be configured to include a frequency range set in the physical broadcast channel and a frequency range in which the synchronization signal and the physical broadcast channel are transmitted.

[0184] For example, the synchronization signal and the physical broadcast channel may not be allowed to be transmitted in a frequency range outside the initial DL BWP.

[0185] For example, the cyclic prefix (CP) length or CP structure for the synchronization signal, the physical broadcast channel, the physical downlink control channel, and the physical downlink shared channel may be the same within the initial DL BWP.

[0186] For example, the above initial DL BWP can be set as a unit of resource blocks.

[0187] For example, the initial DL BWP may be set as a unit of a resource block group. For example, the unit of the resource block group may be a multiple of the resource set for the system information. For example, the unit of the resource block group may be a multiple of the resource set for the physical downlink control channel. For example, the unit of the resource block group may be a multiple of the resource set for the physical downlink shared channel. For example, the unit of the resource block group may be a multiple of the combination of the resource set for the system information and the resource set for the physical downlink control channel.

[0188] For example, based on the fact that the frequency range in which the synchronization signal and the physical broadcast channel are transmitted overlaps with at least one resource block within the resource block group, the initial DL BWP may be configured to include the remaining resource blocks within the resource block group. For example, the remaining resource blocks may be resource blocks that do not overlap with the frequency range in which the synchronization signal and the physical broadcast channel are transmitted.

[0189] For example, the first device may be a terminal, and the second device may be a base station, a non-ground network node, or a satellite.

[0190] The proposed method above may be applied to a device according to various embodiments of the present disclosure. For example, a processor (202) of a second device (200) may control a transceiver (206) to transmit a synchronization signal and a physical broadcast channel to a first device, and / or the processor (202) of the second device (200) may control the transceiver (206) to transmit system information to the first device within an initial DL (downlink) BWP (bandwidth part). For example, the initial DL BWP may be configured to include a frequency range in which the synchronization signal and the physical broadcast channel are transmitted, based on (i) a frequency range set in the physical broadcast channel and (ii) a frequency range in which the synchronization signal and the physical broadcast channel are transmitted.

[0191] 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, the instructions may cause the second device to perform an operation based on execution by the at least one processor. For example, the operation may include at least one of: transmitting a synchronization signal and a physical broadcast channel to the first device; and / or transmitting system information to the first device within an initial DL (downlink) BWP (bandwidth part). For example, the initial DL BWP may be configured to include a frequency range in which the synchronization signal and the physical broadcast channel are transmitted, based on (i) a frequency range set in the physical broadcast channel and (ii) a frequency range in which the synchronization signal and the physical broadcast channel are transmitted.

[0192] According to one embodiment of the present disclosure, a processing device may be provided. For example, the processing device may include at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, the instructions may cause a second device to perform an operation based on execution by the at least one processor. For example, the operation may include at least one of: transmitting a synchronization signal and a physical broadcast channel to a first device; and / or transmitting system information to the first device within an initial DL (downlink) BWP (bandwidth part). For example, the initial DL BWP may be configured to include a frequency range in which the synchronization signal and the physical broadcast channel are transmitted, based on (i) a frequency range set in the physical broadcast channel and (ii) a frequency range in which the synchronization signal and the physical broadcast channel are transmitted.

[0193] According to one embodiment of the present disclosure, a non-transient computer-readable storage medium recording instructions may be provided. For example, the instructions may cause a second device to perform an operation based on execution. For example, the operation may include at least one of: transmitting a synchronization signal and a physical broadcast channel to a first device; and / or transmitting system information to the first device within an initial DL (downlink) BWP (bandwidth part). For example, the initial DL BWP may be configured to include a frequency range in which the synchronization signal and the physical broadcast channel are transmitted, based on (i) a frequency range set in the physical broadcast channel and (ii) a frequency range in which the synchronization signal and the physical broadcast channel are transmitted.

[0194] Various embodiments of the present disclosure may be combined with one another, and some descriptions, functions, procedures, suggestions, methods, and / or operations of the embodiments may be omitted.

[0195] The following describes an apparatus to which various embodiments of the present disclosure may be applied.

[0196] 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.

[0197] 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.

[0198] FIG. 14 shows a communication system (1) according to one embodiment of the present disclosure. The embodiment of FIG. 14 can be combined with various embodiments of the present disclosure.

[0199] 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 a wireless communication function, 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.

[0200] Here, the wireless communication technology implemented in the wireless devices (100a to 100f) of this specification may include LTE, NR, and 6G, as well as Narrowband Internet of Things for low-power communication. 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 this specification may perform communication based on LTE-M technology. 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 this specification 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.

[0201] 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).

[0202] 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.

[0203] 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.

[0204] 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.

[0205] 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 sequences 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.

[0206] 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 sequence diagrams 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.

[0207] 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.

[0208] 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.

[0209] 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.

[0210] 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.

[0211] FIG. 16 shows a signal processing circuit for a transmission signal according to one embodiment of the present disclosure. The embodiment of FIG. 16 can be combined with various embodiments of the present disclosure.

[0212] 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.

[0213] 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).

[0214] 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.

[0215] 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.

[0216] 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.

[0217] 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.

[0218] 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).

[0219] 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.

[0220] 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.

[0221] Hereinafter, an implementation example of FIG. 17 will be described in more detail with reference to the drawings.

[0222] 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 an MS (Mobile Station), UT (User Terminal), MSS (Mobile Subscriber Station), SS (Subscriber Station), AMS (Advanced Mobile Station), or WT (Wireless Terminal). The embodiment of FIG. 18 may be combined with various embodiments of the present disclosure.

[0223] 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.

[0224] 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 perform various operations by controlling the components of the portable device (100). 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.

[0225] 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).

[0226] The claims described in this specification may be combined in various ways. For example, the technical features of the method claims in this specification may be combined to be implemented as a device, and the technical features of the device claims in this specification may be combined to be implemented as a method. Furthermore, the technical features of the method claims and the technical features of the device claims in this specification may be combined to be implemented as a device, and the technical features of the method claims and the technical features of the device claims in this specification may be combined to be implemented as a method.

Claims

In terms of method, The first device receives a synchronization signal and a physical broadcast channel from the second device; and The first device comprises the step of receiving system information from the second device within an initial DL (downlink) BWP (bandwidth part); wherein A method in which the above initial DL BWP is set to include (i) a frequency range set in the physical broadcast channel and (ii) a frequency range of the synchronization signal and the physical broadcast channel based on the frequency range of the synchronization signal and the physical broadcast channel. In Article 1, A method in which the above initial DL BWP is configured to include the frequency range set in the physical broadcast channel and the frequency range of the synchronization signal and the physical broadcast channel. In Article 1, A method in which the above synchronization signal and the above physical broadcast channel are not allowed to be mapped to a frequency range outside the above initial DL BWP. In Article 1, The CP (cyclic prefix) length or CP structure for the above synchronization signal, the above physical broadcast channel, the physical downlink control channel, and the physical downlink shared channel is the same within the above initial DL BWP, method. In Article 1, The above initial DL BWP is a method set as a unit of resource blocks. In Article 1, A method in which the above initial DL BWP is set as a unit of resource block group. In Article 6, A method in which the unit of the above resource block group is a multiple of the resource set for the above system information. In Article 6, A method in which the unit of the above resource block group is a multiple of the resource set for the physical downlink control channel. In Article 6, A method in which the unit of the above resource block group is a multiple of the resource set for the physical downlink shared channel. In Article 6, A method in which the unit of the above resource block group is a multiple of the combination of the resource set for system information and the resource set for physical downlink control channel. In Article 1, A method in which, based on the fact that the frequency domain of the synchronization signal and the physical broadcast channel overlaps with at least one resource block within a resource block group, the initial DL BWP is configured to include the remaining resource blocks within the resource block group. In Article 11, A method in which the remaining resource blocks are resource blocks that do not overlap with the frequency domain of the synchronization signal and the physical broadcast channel. In Article 1, A method in which the first device is a terminal, and the second device is a base station, a non-ground network node, or a satellite. In the first device, At least one transmitter / receiver; At least one processor; and The first device is configured to perform an operation based on the instructions being executed by the at least one processor, wherein the operation comprises: at least one memory connected to the at least one processor and storing instructions, the instructions being executed by the at least one processor. Receiving a synchronization signal and a physical broadcast channel from a second device; and Receiving system information from the second device within the initial DL (downlink) BWP (bandwidth part); wherein The above initial DL BWP is a first device configured to include (i) a frequency range set in the physical broadcast channel and (ii) a frequency range of the synchronization signal and the physical broadcast channel based on the frequency range of the synchronization signal and the physical broadcast channel. In a processing device, At least one processor; and The first device is configured to perform an operation based on the instructions being executed by the at least one processor, wherein the operation comprises: at least one memory connected to the at least one processor and storing instructions, the instructions being executed by the at least one processor. Receiving a synchronization signal and a physical broadcast channel from a second device; and Receiving system information from the second device within the initial DL (downlink) BWP (bandwidth part); wherein A processing device wherein the above initial DL BWP is configured to include (i) a frequency range set in the physical broadcast channel and (ii) a frequency range of the synchronization signal and the physical broadcast channel based on the frequency range of the synchronization signal and the physical broadcast channel. As a non-transient computer-readable storage medium recording instructions, The above commands cause the first device to perform an operation based on execution, wherein the operation is: Receiving a synchronization signal and a physical broadcast channel from a second device; and Receiving system information from the second device within the initial DL (downlink) BWP (bandwidth part); wherein The above initial DL BWP is a non-transient computer-readable storage medium configured to include (i) a frequency range set in the physical broadcast channel and (ii) a frequency range of the synchronization signal and the physical broadcast channel based on the frequency range of the synchronization signal and the physical broadcast channel. In terms of method, The second device transmits a synchronization signal and a physical broadcast channel to the first device; and The second device comprises the step of transmitting system information to the first device within an initial DL (downlink) BWP (bandwidth part); A method in which the above initial DL BWP is configured to include the frequency range in which the synchronization signal and the physical broadcast channel are transmitted, based on (i) the frequency range set in the physical broadcast channel and (ii) the frequency range in which the synchronization signal and the physical broadcast channel are transmitted. In the second device, At least one transmitter / receiver; At least one processor; and The second device is configured to perform an operation based on the instructions being executed by the at least one processor, wherein the operation comprises: at least one memory connected to the at least one processor and storing instructions, the instructions being executed by the at least one processor. Transmitting a synchronization signal and a physical broadcast channel to a first device; and Transmitting system information to the first device within the initial DL (downlink) BWP (bandwidth part); wherein A second device, wherein the initial DL BWP is configured to include the frequency range in which the synchronization signal and the physical broadcast channel are transmitted, based on (i) the frequency range set in the physical broadcast channel and (ii) the frequency range in which the synchronization signal and the physical broadcast channel are transmitted. In a processing device, At least one processor; and The second device is configured to perform an operation based on the fact that the instructions are executed by the at least one processor, wherein the operation comprises: at least one memory connected to the at least one processor and storing instructions, the instructions being executed by the at least one processor. Transmitting a synchronization signal and a physical broadcast channel to a first device; and Transmitting system information to the first device within the initial DL (downlink) BWP (bandwidth part); wherein A processing device configured such that the above initial DL BWP includes (i) a frequency range set in the physical broadcast channel and (ii) a frequency range in which the synchronization signal and the physical broadcast channel are transmitted, based on the frequency range in which the synchronization signal and the physical broadcast channel are transmitted. As a non-transient computer-readable storage medium recording instructions, The above commands cause the second device to perform an operation based on execution, wherein the operation is: Transmitting a synchronization signal and a physical broadcast channel to a first device; and Transmitting system information to the first device within the initial DL (downlink) BWP (bandwidth part); wherein The above initial DL BWP is a non-transient computer-readable storage medium configured to include a frequency range in which the synchronization signal and the physical broadcast channel are transmitted, based on (i) a frequency range set in the physical broadcast channel and (ii) a frequency range in which the synchronization signal and the physical broadcast channel are transmitted.

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