Method and apparatus for repetitive transmission and reception in non-terrestrial network

Abstract

Provided are a method by which an apparatus performs wireless communication and an apparatus supporting same. The apparatus: can acquire information related to nominal repetition transmission; and can perform repetition transmission on the basis of an orthogonal cover code. For example, the orthogonal cover code can be applied to the repetition transmission on the basis of at least one of the length of actual repetition transmission and the length of the nominal repetition transmission.

Description

Method and device for repeated transmission and reception in a non-terrestrial network

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

[0002] 5G NR, the successor to LTE (long-term evolution), is a new clean-slate mobile communications system characterized by high performance, low latency, and high availability. 5G NR can utilize all available spectrum resources, from low-frequency bands below 1 GHz, mid-frequency bands between 1 GHz and 10 GHz, and high-frequency (millimeter wave) bands above 24 GHz.

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

[0005] According to one embodiment of the present disclosure, a method may be provided. For example, the method may include the steps of: obtaining information related to nominal repetition transmission; and performing nominal repetition transmission based on an orthogonal cover code. For example, the orthogonal cover code may be applied to the nominal repetition transmission based on at least one of the length of the actual repetition transmission or the length of the nominal repetition transmission.

[0006] According to one embodiment of the present disclosure, a device may be provided. For example, the device may include at least one transceiver; at least one processor; and at least one memory coupled to the at least one processor and storing instructions. For example, the instructions, when executed by the at least one processor, may cause the device to: obtain information related to nominal repetition transmission; and perform repetition transmission based on an orthogonal cover code. For example, the orthogonal cover code may be applied to the repetition transmission based on at least one of the length of an actual repetition transmission or the length of the nominal repetition transmission.

[0007] According to one embodiment of the present disclosure, a processing device configured to control a device may be provided. For example, the processing device may include at least one processor; and at least one memory coupled to the at least one processor and storing instructions. For example, the instructions, when executed by the at least one processor, may cause the device to: obtain information related to nominal repetition transmission; and perform repetition transmission based on an orthogonal cover code. For example, the orthogonal cover code may be applied to the repetition transmission based on at least one of the length of an actual repetition transmission or the length of the nominal repetition transmission.

[0008] According to one embodiment of the present disclosure, a non-transitory computer-readable storage medium having instructions recorded thereon may be provided. For example, the instructions, when executed, may cause a device to: obtain information related to nominal repetition transmission; and perform repetition transmission based on an orthogonal cover code. For example, the orthogonal cover code may be applied to the repetition transmission based on at least one of the length of an actual repetition transmission or the length of the nominal repetition transmission.

[0009] Figure 1 illustrates a device-to-device communication procedure according to one embodiment of the present disclosure.

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

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

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

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

[0014] FIG. 6 illustrates 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 one embodiment of the present disclosure.

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

[0017] FIG. 9 illustrates a procedure for performing downlink transmission and reception according to one embodiment of the present disclosure.

[0018] FIG. 10 illustrates a procedure for performing uplink transmission and reception according to one embodiment of the present disclosure.

[0019] FIG. 11 illustrates an example of repeated transmission according to one embodiment of the present disclosure.

[0020] FIG. 12 illustrates a method by which a device performs wireless communication according to one embodiment of the present disclosure.

[0021] FIG. 13 illustrates a method for a base station to perform wireless communication according to one embodiment of the present disclosure.

[0022] Fig. 14 illustrates a communication system (1) according to one embodiment of the present disclosure.

[0023] FIG. 15 illustrates a wireless device according to an embodiment of the present disclosure.

[0024] FIG. 16 illustrates a signal processing circuit for a transmission signal according to one embodiment of the present disclosure.

[0025] FIG. 17 illustrates a wireless device according to one embodiment of the present disclosure.

[0026] FIG. 18 illustrates a mobile device according to one embodiment of the present disclosure.

[0027] FIG. 19 illustrates a vehicle or autonomous vehicle according to one embodiment of the present disclosure.

[0028] In this disclosure, "A or B" can mean "only A," "only B," or "both A and B." In other words, "A or B" in this disclosure can be interpreted as "A and / or B." For example, "A, B or C" in this disclosure can mean "only A," "only B," "only C," or "any combination of A, B and C."

[0029] As used herein, a slash ( / ) or a comma 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."

[0030] 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 identically to “at least one of A and B.”

[0031] Additionally, in the present disclosure, “at least one of A, B and C” can 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” can mean “at least one of A, B and C.”

[0032] 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, "control information" in 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."

[0033] In the following explanation, ‘when, if, in case of’ can be replaced with ‘based on’.

[0034] Technical features individually described in one drawing in this disclosure may be implemented individually or simultaneously.

[0035] In the present disclosure, higher layer parameters may be parameters set for the terminal, preset, or predefined. For example, a base station or network may transmit higher layer parameters to the terminal. For example, the higher layer parameters may be transmitted via radio resource control (RRC) signaling or medium access control (MAC) signaling.

[0036] In the present disclosure, "setting or defining" may be interpreted as being set or preset to a device through predefined signaling (e.g., SIB, MAC, RRC, DCI (downlink control information), etc.) from a base station or a network. In the present disclosure, "setting or defining" may be interpreted as being set or preset to a device through predefined signaling (e.g., MAC, RRC, SCI (sidelink control information), device-to-device signaling control information, etc.) from another device. In the present disclosure, "setting or defining" may be interpreted as being set or preset to a device.

[0037] In the present disclosure, a 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.

[0038] The technology proposed in the present disclosure can be used in various wireless communication systems such as CDMA (code division multiple access), FDMA (frequency division multiple access), TDMA (time division multiple access), OFDMA (orthogonal frequency division multiple access), and SC-FDMA (single carrier frequency division multiple access). CDMA can be implemented with wireless technologies such as UTRA (universal terrestrial radio access) or CDMA2000. TDMA can be implemented with wireless technologies such as GSM (global system for mobile communications) / GPRS (general packet radio service) / EDGE (enhanced data rates for GSM evolution). OFDMA can be implemented with wireless technologies such as IEEE (Institute of Electrical and Electronics Engineers) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, E-UTRA (evolved UTRA), LTE (long term evolution), and 5G NR.

[0039] The technology proposed in this disclosure can be implemented with 6G wireless technology and applied to various 6G systems. For example, 6G systems can have key factors such as enhanced mobile broadband (eMBB), ultra-reliable low latency communications (URLLC), massive machine-type communication (mMTC), artificial intelligence (AI) integrated communication, tactile internet, high throughput, high network capacity, high energy efficiency, low backhaul and access network congestion, and enhanced data security.

[0040] FIG. 1 illustrates a device-to-device communication procedure according to one embodiment of the present disclosure. The embodiment of FIG. 1 may be combined with various embodiments of the present disclosure.

[0041] Referring to FIG. 1, in step S101, a first device and a second device can perform synchronization. For example, the first device can be a terminal and / or at least one of the devices proposed in the present disclosure. For example, the second device can 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 can perform an initial cell search operation. For example, the first device can detect at least one synchronization signal transmitted by the second device according to a predefined rule. Here, for example, the synchronization signal can include a plurality of synchronization signals classified according to a structure or purpose (e.g., a primary synchronization signal, a secondary synchronization signal, etc.). 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., a cell identifier).

[0042] In step S103, the first device can obtain system information transmitted by the second device. For example, the system information may include information related to the properties, characteristics, and / or capabilities of the second device required 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 system information before receiving the system information. For example, the request and provision of system information may be performed after a random access procedure described below.

[0043] In step S105, the first device and the second device can perform a random access procedure. For example, the first device can transmit and / or receive at least one message (e.g., a random access preamble, a random access response message, etc.) for the random access procedure based on information related to a 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 can transmit a preamble (e.g., Msg1) through the random access channel, the first device can receive a random access response message (e.g., Msg2), the first device can transmit a message (e.g., Msg3) including 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 can receive a message (e.g., Msg4) for contention resolution and / or connection establishment. For example, Msg1 and Msg3 can be sent and received as one message (e.g., MsgA), and / or Msg2 and Msg4 can be sent and received as one message (e.g., MsgB).

[0044] 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 that controls a connection (e.g., a radio resource control (RRC) layer), a layer that handles mapping between logical channels and transport channels (e.g., a media access control (MAC) layer), a layer that handles physical channels (e.g., a physical (PHY) layer), etc. For example, the first device and the second device may perform at least one of signaling for establishing a connection, signaling for determining settings related to communication, and / or signaling for indicating allocated resources. For example, the control information may be signaled / transmitted via 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.

[0045] 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, transmit, and / or receive data based on signaling of control information. 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, waveform demodulation for each antenna, signal arrangement considering layer mapping, constellation demapping, descrambling, and / or channel decoding.

[0046] For example, the layers of a radio interface protocol between a first device and a second device can be divided into L1 (layer 1), L2 (layer 2), L3 (layer 3), etc. For example, a physical layer belonging to the first layer can provide an information transfer service using a physical channel, and an RRC (radio resource control) layer located in the third layer can play a role in controlling radio resources between the first device and the second device. For this purpose, for example, the RRC layer can exchange RRC messages between the first device and the second device.

[0047] FIG. 2 illustrates a radio protocol architecture according to an embodiment of the present disclosure. The embodiment of FIG. 2 can be combined with various embodiments of the present disclosure. For example, (a) of FIG. 2 may illustrate a radio protocol stack of a user plane for uplink communication or downlink communication, and (b) of FIG. 2 may illustrate a radio protocol stack of a control plane for uplink communication or downlink communication. For example, (c) of FIG. 2 may illustrate a radio protocol stack of a user plane for device-to-device communication, and (d) of FIG. 2 may illustrate a radio protocol stack of a control plane for device-to-device communication.

[0048] For example, the physical layer can provide information transmission services to upper layers using physical channels. For example, the physical layer can be connected to the upper layer, the medium access control (MAC) layer, through a transport channel. For example, data can be transmitted between the MAC layer and the physical layer through the transport channel. For example, transport channels can be classified according to how and with what characteristics data is transmitted over the wireless interface. For example, data can be transmitted between different physical layers, for example, between the physical layers of a first device and a second device, through a physical channel. For example, the physical channel can be modulated using an orthogonal frequency division multiplexing (OFDM) scheme, and time and frequency can be utilized as radio resources.

[0049] For example, the MAC layer can provide services to the upper layer, the radio link control (RLC) layer, through logical channels. For example, the MAC layer can provide a mapping function from multiple logical channels to multiple transport channels. For example, the MAC layer can provide a logical channel multiplexing function by mapping multiple logical channels to a single transport channel. For example, the MAC sublayer can provide data transmission services on logical channels.

[0050] For example, the RLC layer can perform concatenation, segmentation, and reassembly of RLC service data units (SDUs). For example, to guarantee the various quality of service (QoS) required by radio bearers (RBs), the RLC layer can provide three operating modes: transparent mode (TM), unacknowledged mode (UM), and acknowledged mode (AM). For example, AM RLC can provide error correction through automatic repeat request (ARQ).

[0051] For example, the RRC (radio resource control) layer can be defined only in the control plane. For example, the RRC layer can be responsible for controlling logical channels, transport channels, and physical channels in relation to the configuration, re-configuration, and release of radio bearers. For example, an RB can mean a logical path provided by a first layer (e.g., a physical layer) and a second layer (e.g., a MAC layer, an RLC layer, a PDCP (packet data convergence protocol) layer, a SDAP (service data adaptation protocol) layer, etc.) for data transmission between a first device and a second device.

[0052] For example, the functions of the PDCP layer in the user plane may include forwarding of user data, header compression, and ciphering. For example, the functions of the PDCP layer in the control plane may include forwarding of control plane data and ciphering / integrity protection.

[0053] For example, establishing an RB can refer to the process of defining the characteristics of the radio protocol layer and channel to provide a specific service, and setting specific parameters and operating methods for each. For example, RBs can be divided into two types: signaling radio bearers (SRBs) and data radio bearers (DRBs). For example, SRBs can be used as a channel to transmit RRC messages in the control plane, while DRBs can be used as a channel to transmit user data in the user plane.

[0054] For example, a downlink transmission channel may include at least one of a broadcast channel (BCH) for transmitting system information, and / or a downlink shared channel (SCH) for transmitting user traffic or control messages. For example, traffic or control messages of a downlink multicast or broadcast service may be transmitted through the downlink SCH, or may be transmitted through a separate downlink multicast channel (MCH). Meanwhile, an uplink transmission channel may include at least one of a random access channel (RACH) for transmitting initial control messages, and / or an uplink shared channel (SCH) for transmitting user traffic or control messages. For example, a logical channel located above a 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).

[0055] FIG. 3 illustrates the structure of a wireless frame according to an embodiment of the present disclosure. The embodiment of FIG. 3 can be combined with various embodiments of the present disclosure.

[0056] Referring to FIG. 3, for example, a radio frame may be used 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 include 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 according to a subcarrier spacing (SCS). For example, each slot may include 12 or 14 OFDM (A) symbols, depending on a cyclic prefix (CP).

[0057] For example, when normal CP is used, each slot can contain 14 symbols. For example, when extended CP is used, each slot can contain 12 symbols. Here, for example, the symbols can contain OFDM symbols (or CP-OFDM symbols), SC-FDMA (single carrier-FDMA) symbols (or DFT-s-OFDM (Discrete Fourier Transform-spread-OFDM) symbols).

[0058] Table 2 below shows the number of symbols per slot (N) depending on 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 ) is an example.

[0059] CP type SCS (15*2u )N slot symb N frame,u slot N subframe,u slot Normal CP15kHz (u=0)1410130kHz (u=1)1420260kHz (u=2)14404120kHz (u=3)14808240kHz (u=4)1416016Extended CP60kHz (u=2)12404

[0060] For example, OFDM(A) numerology (e.g., SCS, CP length, etc.) may be set differently between multiple cells that are merged into a single terminal. Accordingly, the (absolute time) interval of time resources (e.g., subframes, slots, or transmit time intervals (TTIs)) composed of the same number of symbols may be set differently between the merged cells. For example, in the present disclosure, time resources such as subframes, slots, TTIs, etc. may be referred to as time units.

[0061] For example, multiple numerologies, or SCSs, may be supported to support various services. For example, a 15 kHz SCS may support wide areas in traditional cellular bands, while a 30 kHz / 60 kHz SCS may support dense urban areas, lower latency, and wider carrier bandwidth. For example, a 60 kHz or higher SCS may support bandwidths greater than 24.25 GHz to overcome phase noise.

[0062] FIG. 4 illustrates a slot structure of a frame according to an embodiment of the present disclosure. The embodiment of FIG. 4 can be combined with various embodiments of the present disclosure.

[0063] 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 one numerology (e.g., SCS, CP length, etc.). For example, a carrier may include at most N BWPs (where N is a positive integer). For example, data communication may be performed through an activated BWP. For example, each element may be referred to as a resource element (RE) in the resource grid, and one complex symbol may be mapped to it.

[0064] For example, a BWP may be a contiguous set of PRBs in a given numerology. For example, a PRB may be selected from a contiguous subset of common resource blocks (CRBs) for a given numerology on a given carrier.

[0065] For example, the BWP may be at least one of an active BWP, an initial BWP, and / or a default BWP. For example, the UE may not monitor the downlink radio link quality in a DL BWP other than the active DL BWP on the PCell (primary cell). For example, the UE may not receive a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), or a channel state information-reference signal (CSI-RS) (except for radio resource management (RRM)) outside of the active DL BWP. For example, the UE may not trigger channel state information (CSI) reporting for an inactive DL BWP. For example, the UE may not transmit a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH) outside of the active UL BWP. For example, for downlink, the initial BWP can be given as a set of consecutive resource blocks (RBs) for the remaining minimum system information (RMSI) CORESET (control resource set) (set by the physical broadcast channel (PBCH)). For uplink, for example, 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 a higher layer. For example, the initial value of the default BWP can be the initial DL BWP.For energy saving, if a terminal does not detect DCI (downlink control information) for a certain period of time, the terminal may switch its active BWP to a default BWP.

[0066] FIG. 5 illustrates an example of a BWP according to an embodiment of the present disclosure. The embodiment of FIG. 5 can be combined with various embodiments of the present disclosure. In the embodiment of FIG. 5, it is assumed that there are three BWPs.

[0067] Referring to FIG. 5, for example, a common resource block (CRB) may be a carrier resource block numbered from one end of a 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 a resource block grid.

[0068] For example, BWP is point A, offset from point A (N start BWP ) and bandwidth (N size BWP ) can be set by. For example, point A can be an outer reference point of the PRB of a carrier where subcarrier 0 of all numerologies (e.g., all numerologies supported by the network on that carrier) aligns. For example, the offset can be the PRB spacing between the lowest subcarrier in a given numerology and point A. For example, the bandwidth can be the number of PRBs in a given numerology.

[0069] FIG. 6 illustrates a communication structure that can be provided in a 6G system according to an embodiment of the present disclosure. The embodiment of FIG. 6 can be combined with various embodiments of the present disclosure.

[0070] As core implementation technologies of the 6G system, technologies such as artificial intelligence (AI), THz (terahertz) communication, optical wireless technology, free-space optical transmission (FSO) backhaul networks, massive MIMO (multiple input multiple output) technology, blockchain, 3D networking, quantum communication, unmanned aerial vehicles, cell-free communication, wireless information and energy transfer (WIET), integration of sensing and communication, integration of access backhaul networks, holographic beamforming, big data analysis, and large intelligent surface (LIS) can be adopted.

[0071] - Artificial Intelligence: Incorporating AI into communications can streamline and improve real-time data transmission. AI can use numerous analytics to determine how complex target tasks should be performed. For example, AI can increase efficiency and reduce processing delays. Time-consuming tasks such as handovers, network selection, and resource scheduling can be performed instantly using AI. AI can also play a crucial role in machine-to-machine (M2M), machine-to-human, and human-to-machine communications. AI can also facilitate rapid communication in brain-computer interfaces (BCIs). 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.

[0072] - THz communication (terahertz communication): Data rates can be increased by increasing the bandwidth. This can be achieved by using sub-THz communication with wide bandwidths and applying advanced massive MIMO technology. THz waves, also known as sub-millimeter waves, typically refer to the frequency range between 0.1 THz and 10 THz, with corresponding wavelengths ranging from 0.03 mm to 3 mm. The 100 GHz to 300 GHz band (sub-THz band) is considered a key part of the THz spectrum for cellular communications. Adding the sub-THz band to the mmWave band will increase the capacity of 6G cellular communications. Among the defined THz bands, 300 GHz to 3 THz lies in the far infrared (IR) frequency band. While part of the optical band, the 300 GHz to 3 THz band lies at the boundary of the optical band, immediately following the RF band. Therefore, this 300 GHz to 3 THz band exhibits similarities to RF. Key characteristics of THz communications include (i) the widely available bandwidth to support very high data rates and (ii) the high path loss that occurs at high frequencies (requiring highly directional antennas). The narrow beamwidths generated by highly directional antennas reduce interference. The small wavelength of THz signals allows for a significantly larger number of antenna elements to be integrated into devices and base stations operating in this band. This enables the use of advanced adaptive array technologies to overcome range limitations.

[0073] - Large-scale MIMO technology

[0074] - Hologram beamforming (HBF)

[0075] - Optical wireless technology

[0076] - Free-space optical transmission backhaul network (FSO backhaul network)

[0077] - Quantum communication

[0078] - Cell-free communication

[0079] - Integration of wireless information and power transmission

[0080] - Integration of wireless communication and sensing

[0081] - Integrated access and backhaul network

[0082] - Big data analysis

[0083] - Reconfigurable intelligent surface

[0084] - metaverse

[0085] - Block chain

[0086] 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 can include UAM, RAM, UAS, and uncrewed aerial vehicles (UAVs).

[0087] - Autonomous driving (self-driving): V2X (vehicle to everything), a key element in building autonomous driving infrastructure, can be a technology that allows cars to communicate and share with various elements on the road for autonomous driving, such as vehicle to vehicle (V2V) wireless communication and vehicle to infrastructure (V2I) wireless communication.

[0088] Non-terrestrial network (NTN): NTN can refer to a network or network segment that utilizes radio frequency (RF) resources mounted on satellites (or UAS platforms). NTN services may be considered to secure wider coverage or provide wireless communication services in locations where the installation of wireless communication base stations is difficult.

[0089] - 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.

[0090] - Reconfigurable intelligent surface (RIS): RIS can be used to manipulate and enhance signal propagation in wireless communication environments. For example, a 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 example, a RIS can improve signal reception by controlling the path, phase, and / or intensity of the propagating signal. For example, in the case of a RIS, power consumption can be very low because power is consumed only for controlling the phase and amplitude of the small antennas. For example, because a RIS can be reconfigured to suit different environments, it can meet diverse communication requirements and operate effectively in dynamic network environments.

[0091] 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.

[0092] Referring to FIG. 7, NTN communication can be performed based on satellite networks, high-altitude platform stations (HAPS) as international mobile telecommunications (IMT) base stations (BS), and terminals capable of aerial communication (e.g., AAMs). For example, to improve coverage, etc., devices such as satellite networks, HIBS, and terminals capable of aerial communication (e.g., AAMs) 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.

[0093] Figures 8a and 8b illustrate a non-terrestrial network scenario according to an embodiment of the present disclosure. The embodiments of Figures 8a and 8b may be combined with various embodiments of the present disclosure.

[0094] Figure 8a illustrates a non-terrestrial network scenario based on a transparent payload, and Figure 8b illustrates a non-terrestrial network scenario based on a regenerative payload. For example, a non-terrestrial network may typically include the following elements:

[0095] - One or more satellite gateways connecting non-terrestrial networks to public data networks.

[0096] - Feeder link or wireless link between the satellite gateway and the satellite (or UAS platform).

[0097] - Service link or wireless link between user equipment and satellite (or UAS platform)

[0098] - A satellite (or UAS platform) capable of implementing transparent or regenerative (including onboard processing) payloads. For example, a satellite (or UAS platform) may generate multiple beams over a given service area, typically bounded by a field of view. For example, the beam footprint may be typically elliptical in shape. For example, the field of view of the satellite (or UAS platform) may vary depending on the onboard antenna diagram and minimum elevation angle. For example, for transparent payloads, radio frequency filtering, frequency conversion, and amplification may be performed. Therefore, the repetitive waveform signal in the payload may remain unchanged. For example, for regenerative payloads, radio frequency filtering, frequency conversion, and amplification, as well as demodulation / decoding, switching and / or routing, and coding / modulation may be performed. This may effectively be equivalent to onboarding all base station functions onto the satellite (or UAS platform).

[0099] - Optionally, inter-satellite link (ISL)

[0100] - User equipment can be serviced by satellites (or UAS platforms) within the target service area.

[0101] FIG. 9 illustrates a procedure for performing downlink transmission and reception according to an embodiment of the present disclosure. The embodiment of FIG. 9 may be combined with various embodiments of the present disclosure.

[0102] Referring to FIG. 9, in step S910, the base station may schedule downlink transmission, such as frequency / time resources, transmission layers, downlink precoder, modulation and coding scheme (MCS), etc. For example, the base station may determine a beam for PDSCH transmission to the terminal.

[0103] In step S920, the terminal can receive DCI for downlink scheduling (e.g., including scheduling information of PDSCH) from the base station on the PDCCH.

[0104] For example, DCI format 1_0 or 1_1 may be used for downlink scheduling. For example, DCI format 1_1 may include the following information: identifier for DCI formats, bandwidth part indicator, frequency domain resource assignment, time domain resource assignment, PRB bundling size indicator, rate matching indicator, zero power (ZP) CSI-RS trigger, antenna port(s), transmission configuration indication (TCI), sounding reference signal (SRS) request, demodulation reference signal (DMRS) sequence initialization.

[0105] For example, depending on each state indicated in the antenna port(s) field, a number of DMRS ports can be scheduled, and single-user (SU) / multi-user (MU) transmission scheduling can also be possible.

[0106] For example, the TCI field can consist of 3 bits, and quasi co-location (QCL) for DMRS can be dynamically indicated by indicating up to 8 TCI states depending on the TCI field value.

[0107] In step S930, the terminal can receive downlink data from the base station on the PDSCH.

[0108] For example, if a terminal detects a PDCCH including DCI format 1_0 or 1_1, the terminal can decode the PDSCH according to instructions by the corresponding DCI.

[0109] FIG. 10 illustrates a procedure for performing uplink transmission and reception according to an embodiment of the present disclosure. The embodiment of FIG. 10 may be combined with various embodiments of the present disclosure.

[0110] Referring to FIG. 10, in step S1010, the base station may schedule uplink transmission, such as frequency / time resources, transmission layers, uplink precoder, modulation and coding scheme (MCS), etc. For example, the base station may determine a beam for the terminal to transmit PUSCH.

[0111] In step S1020, the terminal can receive DCI for uplink scheduling (e.g., including scheduling information of PUSCH) from the base station on the PDCCH.

[0112] For example, DCI format 0_0 or 0_1 may be used for uplink scheduling. For example, DCI format 0_1 ​​may include the following information: identifier for DCI formats, supplementary uplink (UL / SUL) indicator, bandwidth part indicator, frequency domain resource assignment, time domain resource assignment, frequency hopping flag, modulation and coding scheme (MCS), SRS resource indicator (SRI), precoding information and number of layers, antenna port(s), SRS request, DMRS sequence initialization, and uplink shared channel (UL-SCH) indicator.

[0113] For example, the SRS resources configured within the SRS resource set associated with the upper layer parameter 'usage' can be indicated by the SRS resource indicator field. For example, 'spatialRelationInfo' can be configured for each SRS resource, and its value can be one of {CRI, SSB, SRI}.

[0114] In step S1030, the terminal can transmit uplink data to the base station on PUSCH.

[0115] For example, if a terminal detects a PDCCH including DCI format 0_0 or 0_1, the terminal can transmit the corresponding PUSCH according to the instructions of the corresponding DCI. For example, two transmission methods, codebook-based transmission and non-codebook-based transmission, can be supported for PUSCH transmission.

[0116] For example, when the upper layer parameter 'txConfig' is set to 'codebook', the terminal may be configured for codebook-based transmission. On the other hand, for example, when the upper layer parameter 'txConfig' is set to 'nonCodebook', the terminal may be configured for non-codebook-based transmission. For example, if the upper layer parameter 'txConfig' is not set, the terminal may not expect to be scheduled by DCI format 0_1. For example, when PUSCH is scheduled by DCI format 0_0, the PUSCH transmission may be based on a single antenna port.

[0117] Recently, the introduction of non-terrestrial networks (NTNs) that utilize satellites as network nodes has been actively discussed in the communications field. Satellites supporting NTNs can be classified according to their flight orbits and characteristics, such as geostationary Earth orbit (GEO), medium Earth orbit (MEO), and low Earth orbit (LEO), and generally have very high satellite altitudes. Therefore, the service area of ​​the satellites can have very wide coverage characteristics, and the number of target terminals within the service area can be relatively large. Accordingly, the NTN service may require multiplexing support for multiple terminals. In the present disclosure, a method for increasing the capacity and / or multiplexing of an uplink data channel using an orthogonal cover code (OCC) and a device supporting the same are proposed.

[0118] In the following, the present disclosure mainly describes a method(s) for applying OCC to an uplink data channel, but the proposed method(s) of the present disclosure can also be extended to apply OCC to any uplink transmission signal.

[0119] [Proposal #01] When a terminal can apply OCC to an uplink data channel (e.g., PUSCH), when OCC is applied between repetitive transmissions of the uplink data channel (e.g., PUSCH), OCC may be applied based on (explicit) repetitive transmission (or its multiple) for the uplink data channel (e.g., PUSCH). Here, for example, whether or not to apply the OCC may be set / instructed by the base station. Here, for example, the (explicit) repetitive transmission (e.g., (Nominal) Repetition) may mean repetitive transmission set / instructed by the base station, and the (explicit) repetitive transmission may be divided into one or more (actual) repetitive transmissions (e.g., (Actual) Repetition) and transmitted by invalid symbols and / or slot boundaries, etc. Here, for example, if the (explicit) repeated transmission is divided into one or more (actual) repeated transmissions, the OCC applied to the (explicit) repeated transmission may be applied equally to the corresponding (actual) repeated transmission(s).

[0120] FIG. 11 illustrates an example of repeated transmission according to an embodiment of the present disclosure. The embodiment of FIG. 11 may be combined with various embodiments of the present disclosure.

[0121] Referring to FIG. 11, the number of explicit repeat transmissions can be set. In this case, for example, the number of actual repeat transmissions can be adjusted by invalid symbols (e.g., DL symbols, SSB symbols, etc.) and / or slot boundaries. In the embodiment of FIG. 11, for convenience of explanation, it is assumed that the number of explicit repeat transmissions is 2 and the number of actual repeat transmissions is 3, but the technical idea of ​​the present disclosure is not limited thereto. Various embodiments of the present disclosure can be applied when the number of actual repeat transmissions is greater than or equal to the number of explicit repeat transmissions.

[0122] For example, in a next-generation mobile communication system according to an embodiment of the present disclosure, assume that a terminal transmits an uplink data channel (e.g., PUSCH). Here, for example, the terminal may repeatedly transmit the uplink data channel (time-axis), and a (time-axis) OCC may be applied between the repeated transmissions. Here, for example, the (time-axis) OCC may be for the purpose of multiplexing transmission of one or more uplink data channels (e.g., PUSCH) (within the same cell). Here, for example, the repeated transmission for the uplink data channel may be repeated transmission on a symbol group basis. For example, the embodiment of the present disclosure may be applied in a repeated transmission structure such as PUSCH repetition type B in a 5G system (e.g., the embodiment of FIG. 11). Here, for example, when the terminal performs repeated transmission for the uplink data channel, (explicit) repeated transmission and (actual) repeated transmission may be distinguished. Here, for example, the (explicit) repetitive transmission (e.g., (Nominal) Repetition) may mean repetitive transmission set / instructed by the base station, and the (explicit) repetitive transmission may be divided into one or more (actual) repetitive transmissions (e.g., (Actual) Repetition) and transmitted by invalid symbols (e.g., DL symbols or SSB transmission symbols, etc.) and / or slot boundaries, etc.

[0123] Here, for example, when the terminal wants to apply OCC between repetitive transmissions of an uplink data channel, ambiguity may arise as to the target of OCC application due to the difference between (explicit) repetitive transmissions and (actual) repetitive transmissions. Therefore, in the present disclosure, when the terminal can apply OCC to an uplink data channel (e.g., PUSCH), when OCC is applied between repetitive transmissions of the uplink data channel (e.g., PUSCH), OCC may be applied based on the (explicit) repetitive transmission (or its multiple) for the uplink data channel (e.g., PUSCH). For example, the terminal may apply (time axis) OCC based on the (explicit) repetitive transmission (or its multiple) as a unit, and when the (explicit) repetitive transmission is divided into one or more (actual) repetitive transmission(s) and transmitted, the OCC applied to the (explicit) repetitive transmission may be applied equally to the corresponding (actual) repetitive transmission(s). According to the proposed method of the present disclosure, when a terminal applies OCC between repeated transmissions for an uplink data channel, ambiguity in OCC application due to the difference between (explicit) repeated transmission and (actual) repeated transmission can be eliminated.

[0124] The above [Proposal #01] can be applied in combination with other proposed methods(s) to the extent that the proposed actions do not conflict.

[0125] [Proposal #02] When the terminal can apply OCC for an uplink data channel (e.g., PUSCH), OCC may be applied between repeated transmissions of the uplink data channel (e.g., PUSCH). In this case, if the (explicit) repetition transmission length and / or number of times for the uplink data channel (e.g., PUSCH) is the same as the (actual) repetition transmission length and / or number of times, the OCC setting / indication may be determined to be valid, and in other cases, the OCC setting / indication may be determined to be invalid. Here, for example, whether or not the OCC is applied may be set / indicated by the base station. Here, for example, the (explicit) repetition transmission (e.g., (Nominal) Repetition) may mean a repetition transmission set / indicated by the base station, and the (explicit) repetition transmission may be divided into one or more (actual) repetition transmissions (e.g., (Actual) Repetition) by invalid symbols and / or slot boundaries, etc. Here, for example, if the OCC setting / instruction is determined to be invalid, the terminal's behavior may vary depending on the terminal implementation. For example, the terminal may skip transmission or not apply OCC for the corresponding uplink data channel.

[0126] For example, in a next-generation mobile communication system according to an embodiment of the present disclosure, assume that a terminal transmits an uplink data channel (e.g., PUSCH). Here, for example, the terminal may repeatedly transmit the uplink data channel (time-axis), and a (time-axis) OCC may be applied between the repeated transmissions. Here, for example, the (time-axis) OCC may be for the purpose of multiplexing transmission of one or more uplink data channels (e.g., PUSCH) (within the same cell). Here, for example, the repeated transmission for the uplink data channel may be repeated transmission on a symbol group basis. For example, the embodiment of the present disclosure may be applied in a repeated transmission structure such as PUSCH repetition type B in a 5G system. Here, for example, when the terminal performs repeated transmission for the uplink data channel, (explicit) repeated transmission and (actual) repeated transmission may be distinguished. Here, for example, the (explicit) repetitive transmission (e.g., (Nominal) Repetition) may mean repetitive transmission set / instructed by the base station, and the (explicit) repetitive transmission may be divided into one or more (actual) repetitive transmissions (e.g., (Actual) Repetition) and transmitted by invalid symbols (e.g., DL symbols or SSB transmission symbols, etc.) and / or slot boundaries, etc.

[0127] Here, for example, the terminal may determine that the OCC setting / indication is valid if the (explicit) repeated transmission completely leads to (actual) repeated transmission. For example, if the length of some (explicit) repeated transmission(s) among the (explicit) repeated transmission(s) is shortened or transmitted by dividing into multiple (actual) repeated transmission(s), the structure in which the same data is repeated is not maintained, so the orthogonality of the OCC is not guaranteed. Therefore, in the present disclosure, when the terminal can apply the OCC to an uplink data channel (e.g., PUSCH), when the OCC is applied between repeated transmissions of the uplink data channel (e.g., PUSCH), if the length and / or number of (explicit) repeated transmissions for the uplink data channel (e.g., PUSCH) is the same as the length and / or number of (actual) repeated transmissions, the OCC setting / indication may be determined to be valid, and in other cases, the OCC setting / indication may be determined to be invalid. Alternatively, for example, the terminal may determine that the OCC setting / indication is valid when each (explicit) repeated transmission corresponds to a (single) (actual) repeated transmission of the same length. Here, for example, if the terminal determines that the OCC setting / indication is invalid, it may omit the corresponding uplink data channel transmission or may not apply the OCC. According to the embodiment of the present disclosure, by defining in advance when the application of OCC between the base station and the terminal is valid, there is an effect of eliminating ambiguity in the application of OCC between the base station and the terminal.

[0128] The above [Proposal #02] can be applied in combination with other proposed methods(s) to the extent that the proposed actions do not conflict.

[0129] [Proposal #03] When a terminal can apply OCC for an uplink data channel (e.g., PUSCH), when OCC is applied between repetitive transmissions of the uplink data channel (e.g., PUSCH), (explicit) repetitive transmission(s) for the uplink data channel (e.g., PUSCH) that span slot boundaries and / or include invalid symbols may be excluded from the OCC application target and / or transmission target. Here, for example, whether or not the OCC is applied may be set / indicated by the base station. Here, for example, the (explicit) repetitive transmission (e.g., (Nominal) Repetition) may mean repetitive transmission set / indicated by the base station, and the (explicit) repetitive transmission may be divided into one or more (actual) repetitive transmissions (e.g., (Actual) Repetition) and transmitted by invalid symbols and / or slot boundaries, etc.

[0130] For example, in a next-generation mobile communication system according to an embodiment of the present disclosure, assume that a terminal transmits an uplink data channel (e.g., PUSCH). Here, for example, the terminal may repeatedly transmit the uplink data channel (time-axis), and a (time-axis) OCC may be applied between the repeated transmissions. Here, for example, the (time-axis) OCC may be for the purpose of multiplexing transmission of one or more uplink data channels (e.g., PUSCH) (within the same cell). Here, for example, the repeated transmission for the uplink data channel may be repeated transmission on a symbol group basis. For example, the embodiment of the present disclosure may be applied in a repeated transmission structure such as PUSCH repetition type B in a 5G system. Here, for example, when the terminal performs repeated transmission for the uplink data channel, (explicit) repeated transmission and (actual) repeated transmission may be distinguished. Here, for example, the (explicit) repetitive transmission (e.g., (Nominal) Repetition) may mean repetitive transmission set / instructed by the base station, and the (explicit) repetitive transmission may be divided into one or more (actual) repetitive transmissions (e.g., (Actual) Repetition) and transmitted by invalid symbols (e.g., DL symbols or SSB transmission symbols, etc.) and / or slot boundaries, etc.

[0131] Here, for example, if the length of the (actual) repetitive transmission varies, it may be difficult to apply OCC because repetitive transmission of data is not performed. Therefore, in the present disclosure, when a terminal can apply OCC to an uplink data channel (e.g., PUSCH), when OCC is applied between repetitive transmissions of the uplink data channel (e.g., PUSCH), (explicit) repetitive transmission(s) that span slot boundaries and / or include invalid symbols among (explicit) repetitive transmission(s) for the uplink data channel (e.g., PUSCH) may be excluded from the OCC application target and / or transmission target. For example, if a specific (explicit) repetitive transmission is divided into one or more (actual) repetitive transmission(s) with different lengths, OCC may not be applied to the (explicit) repetitive transmission or the (explicit) repetitive transmission may be excluded from the transmission target. Here, for example, the terminal can perform OCC application and uplink data channel transmission only for (explicit) repeated transmission(s) remaining in full length. According to the proposed method of the present disclosure, OCC can be effectively applied to repeated transmissions of the uplink data channel, excluding (explicit) repeated transmission(s) that deteriorate the orthogonality of the OCC.

[0132] The above [Proposal #03] can be applied in combination with other proposed methods(s) to the extent that the proposed actions do not conflict.

[0133] [Proposal #04] When a terminal can apply OCC to an uplink data channel (e.g., PUSCH), when OCC is applied between repetitive transmissions of the uplink data channel (e.g., PUSCH), and when the (actual) number of repetitive transmissions and / or the period of application for the uplink data channel (e.g., PUSCH) is shorter than the OCC length and / or the period of application, the terminal can perform one or more of the following actions.

[0134] (1) Non-application and / or partial application of OCC

[0135] (2) Omission of uplink data channel transmission

[0136] Here, for example, whether or not to apply the OCC can be set / indicated by the base station. Here, for example, the (explicit) repetitive transmission (e.g., (Nominal) Repetition) can mean repetitive transmission set / indicated by the base station, and the (explicit) repetitive transmission can be divided into one or more (actual) repetitive transmissions (e.g., (Actual) Repetition) and transmitted by invalid symbols and / or slot boundaries, etc.

[0137] For example, in a next-generation mobile communication system according to an embodiment of the present disclosure, assume that a terminal transmits an uplink data channel (e.g., PUSCH). Here, for example, the terminal may repeatedly transmit the uplink data channel (time-axis), and a (time-axis) OCC may be applied between the repeated transmissions. Here, for example, the (time-axis) OCC may be for the purpose of multiplexing transmission of one or more uplink data channels (e.g., PUSCH) (within the same cell). Here, for example, the repeated transmission for the uplink data channel may be repeated transmission on a symbol group basis. For example, the embodiment of the present disclosure may be applied in a repeated transmission structure such as PUSCH repetition type B in a 5G system. Here, for example, when the terminal performs repeated transmission for the uplink data channel, (explicit) repeated transmission and (actual) repeated transmission may be distinguished. Here, for example, the (explicit) repetitive transmission (e.g., (Nominal) Repetition) may mean repetitive transmission set / instructed by the base station, and the (explicit) repetitive transmission may be divided into one or more (actual) repetitive transmissions (e.g., (Actual) Repetition) and transmitted by invalid symbols (e.g., DL symbols or SSB transmission symbols, etc.) and / or slot boundaries, etc.

[0138] Here, for example, if the (actual) number of repeated transmissions and / or the interval is shorter than the OCC length and / or the applicable interval, OCC application may be difficult. For example, if the OCC length is 4 and the (actual) number of repeated transmissions is 3 or less, full OCC application between repeated transmissions may not be possible, and interference may occur with other uplink transmissions. Therefore, in the present disclosure, in the above case, the terminal may omit transmission of the corresponding uplink data channel. Or, for example, if the terminal wants to maintain transmission of the corresponding uplink data channel, OCC non-application and / or partial application may be performed. According to the proposed method of the present disclosure, when the (actual) number of repeated transmissions and / or interval for an uplink data channel (e.g., PUSCH) is different from the OCC length and / or the applicable interval, there is an advantage in that the operation between the base station and the terminal can be clarified.

[0139] The above [Proposal #04] can be applied in combination with other proposed methods as long as the proposed actions do not conflict.

[0140] [Proposal #05] When a terminal can apply OCC to an uplink data channel (e.g., PUSCH), when OCC is applied between repetitive transmissions of the uplink data channel (e.g., PUSCH), the length between (actual) repetitive transmission(s) for the uplink data channel (e.g., PUSCH) may be adjusted to the same value before applying OCC. For example, the length between (actual) repetitive transmission(s) may be adjusted through the following process.

[0141] (1) Among the (actual) repeated transmissions corresponding to (explicit) repeated transmissions, only the (actual) repeated transmission with the longest length can be judged as a (valid) (actual) repeated transmission. Here, for example, the terminal may skip transmission and / or not apply OCC to invalid (actual) repeated transmissions.

[0142] (2) The length of the repeated transmission can be standardized to the same length based on the minimum length among the (valid) (actual) repeated transmission(s). Here, for example, when adjusting the length, the length can be reduced from the front (or back) of the (actual) repeated transmission, or the length can be reduced so that the gap with adjacent (actual) repeated transmission(s) becomes relatively smaller.

[0143] Here, for example, whether or not to apply the OCC can be set / indicated by the base station. Here, for example, the (explicit) repetitive transmission (e.g., (Nominal) Repetition) can mean repetitive transmission set / indicated by the base station, and the (explicit) repetitive transmission can be divided into one or more (actual) repetitive transmissions (e.g., (Actual) Repetition) and transmitted by invalid symbols and / or slot boundaries, etc.

[0144] For example, in a next-generation mobile communication system according to an embodiment of the present disclosure, assume that a terminal transmits an uplink data channel (e.g., PUSCH). Here, for example, the terminal may repeatedly transmit the uplink data channel (time-axis), and a (time-axis) OCC may be applied between the repeated transmissions. Here, for example, the (time-axis) OCC may be for the purpose of multiplexing transmission of one or more uplink data channels (e.g., PUSCH) (within the same cell). Here, for example, the repeated transmission for the uplink data channel may be repeated transmission on a symbol group basis. For example, the embodiment of the present disclosure may be applied in a repeated transmission structure such as PUSCH repetition type B in a 5G system. Here, for example, when the terminal performs repeated transmission for the uplink data channel, (explicit) repeated transmission and (actual) repeated transmission may be distinguished. Here, for example, the (explicit) repetitive transmission (e.g., (Nominal) Repetition) may mean repetitive transmission set / instructed by the base station, and the (explicit) repetitive transmission may be divided into one or more (actual) repetitive transmissions (e.g., (Actual) Repetition) and transmitted by invalid symbols (e.g., DL symbols or SSB transmission symbols, etc.) and / or slot boundaries, etc.

[0145] Here, for example, when the terminal wants to apply OCC for an uplink data channel between (actual) repetitive transmissions, if the lengths of the (actual) repetitive transmissions are different, some of the data may not be repetitively transmitted and OCC may not be applied, which may cause interference. Therefore, in the present disclosure, when the terminal applies OCC for an uplink data channel between (actual) repetitive transmissions, the lengths of the (actual) repetitive transmission(s) may be adjusted to be the same before applying OCC. For example, when each (explicit) repetitive transmission is divided into one or more (actual) repetitive transmission(s), the terminal may determine that only the (actual) repetitive transmission with the longest length is valid and leave it. Here, for example, the terminal may omit transmission or not apply OCC to invalid (actual) repetitive transmission(s). Here, for example, the terminal may unify the length of all valid (actual) repetitive transmission(s) based on the shortest (actual) repetitive transmission among the (actual) repetitive transmission(s) determined to be valid. Here, for example, the terminal can transmit after applying OCC to the effective (actual) repetitive transmission(s) whose lengths are adjusted. Here, for example, when adjusting the length of the repetitive transmission, the length can be reduced from the front (or back) of the (actual) repetitive transmission, or the length can be reduced so that the interval with respect to adjacent (actual) repetitive transmission(s) is relatively smaller. According to the proposed method of the present disclosure, even when the lengths of (actual) repetitive transmissions for the uplink data channel are determined differently, OCC application after length adjustment can be supported, which has the advantage of mitigating interference effects.

[0146] The above [Proposal #05] can be applied in combination with other proposed methods as long as the proposed actions do not conflict.

[0147] FIG. 12 illustrates a method for a device to perform wireless communication according to an embodiment of the present disclosure. The embodiment of FIG. 12 may be combined with various embodiments of the present disclosure.

[0148] Referring to FIG. 12, in step S1210, the device may acquire information related to nominal repetition transmission. In step S1220, the device may perform nominal repetition transmission based on an orthogonal cover code. For example, the orthogonal cover code may be applied to the nominal repetition transmission based on at least one of the length of the actual repetition transmission or the length of the nominal repetition transmission.

[0149] For example, the length of the actual repeated transmission may be the number of times the actual repeated transmission is performed or the number of symbols for the actual repeated transmission, and the length of the explicit repeated transmission may be the number of times the explicit repeated transmission is performed or the number of symbols for the explicit repeated transmission.

[0150] For example, the orthogonal cover code may be applied to the repeated transmission in units of the explicit repeated transmission or in units of multiples of the explicit repeated transmission.

[0151] Additionally, for example, the device can obtain configuration information related to the orthogonal cover code. For example, based on the length of the explicit repeat transmission being the same as the length of the actual repeat transmission, the configuration information related to the orthogonal cover code can be determined to be valid. For example, based on the length of the explicit repeat transmission being different from the length of the actual repeat transmission, the configuration information related to the orthogonal cover code can be determined to be invalid. For example, based on the length of the explicit repeat transmission being different from the length of the actual repeat transmission, the actual repeat transmission may be omitted or the orthogonal cover code may not be applied to the actual repeat transmission. For example, based on the length of the actual repeat transmission being shorter than the length of the orthogonal cover code, the actual repeat transmission may be omitted or the orthogonal cover code may not be applied to the actual repeat transmission. For example, based on the length of the actual repeat transmission being shorter than the length of the orthogonal cover code, a portion of the orthogonal cover code may be applied to the actual repeat transmission.

[0152] For example, based on whether the explicit repeat transmission spans a slot boundary or contains an invalid symbol, the explicit repeat transmission may be omitted or the orthogonal cover code may not be applied to the explicit repeat transmission.

[0153] For example, an actual repeat transmission having a maximum length among the lengths of one or more actual repeat transmissions may be determined to be a valid repeat transmission.

[0154] For example, the length of the actual repeat transmission may be determined by sorting based on the minimum length among the lengths of one or more actual repeat transmissions.

[0155] For example, the explicit repeat transmission may be a repeat transmission set by the base station, and the actual repeat transmission may be a repeat transmission divided by an invalid symbol or slot boundary.

[0156] The proposed method can be applied to devices according to various embodiments of the present disclosure. First, the processor (102) of the device (100) can obtain information related to nominal repetition transmission. Then, the processor (102) of the device (100) can control the transceiver (106) to perform nominal repetition transmission based on an orthogonal cover code. For example, the orthogonal cover code can be applied to the nominal repetition transmission based on at least one of the length of the actual repetition transmission or the length of the nominal repetition transmission.

[0157] According to one embodiment of the present disclosure, a device may be provided. For example, the device may include at least one transceiver; at least one processor; and at least one memory coupled to the at least one processor and storing instructions. For example, the instructions, when executed by the at least one processor, may cause the device to: obtain information related to nominal repetition transmission; and perform repetition transmission based on an orthogonal cover code. For example, the orthogonal cover code may be applied to the repetition transmission based on at least one of the length of an actual repetition transmission or the length of the nominal repetition transmission.

[0158] According to one embodiment of the present disclosure, a processing device configured to control a device may be provided. For example, the processing device may include at least one processor; and at least one memory coupled to the at least one processor and storing instructions. For example, the instructions, when executed by the at least one processor, may cause the device to: obtain information related to nominal repetition transmission; and perform repetition transmission based on an orthogonal cover code. For example, the orthogonal cover code may be applied to the repetition transmission based on at least one of the length of an actual repetition transmission or the length of the nominal repetition transmission.

[0159] According to one embodiment of the present disclosure, a non-transitory computer-readable storage medium having instructions recorded thereon may be provided. For example, the instructions, when executed, may cause a device to: obtain information related to nominal repetition transmission; and perform repetition transmission based on an orthogonal cover code. For example, the orthogonal cover code may be applied to the repetition transmission based on at least one of the length of an actual repetition transmission or the length of the nominal repetition transmission.

[0160] FIG. 13 illustrates a method for a base station to perform wireless communication according to an embodiment of the present disclosure. The embodiment of FIG. 13 may be combined with various embodiments of the present disclosure.

[0161] Referring to FIG. 13, in step S1310, the base station may transmit information related to nominal repetition transmission to the device. In step S1320, the base station may receive a repetition transmission from the device based on an orthogonal cover code. For example, the orthogonal cover code may be applied to the repetition transmission based on at least one of the length of the actual repetition transmission or the length of the nominal repetition transmission.

[0162] For example, the length of the actual repeated transmission may be the number of times the actual repeated transmission is performed or the number of symbols for the actual repeated transmission, and the length of the explicit repeated transmission may be the number of times the explicit repeated transmission is performed or the number of symbols for the explicit repeated transmission.

[0163] For example, the orthogonal cover code may be applied to the repeated transmission in units of the explicit repeated transmission or in units of multiples of the explicit repeated transmission.

[0164] Additionally, for example, the base station may transmit configuration information related to the orthogonal cover code to the device. For example, based on the length of the explicit repeat transmission being the same as the length of the actual repeat transmission, the configuration information related to the orthogonal cover code may be determined to be valid. For example, based on the length of the explicit repeat transmission being different from the length of the actual repeat transmission, the configuration information related to the orthogonal cover code may be determined to be invalid. For example, based on the length of the explicit repeat transmission being different from the length of the actual repeat transmission, the actual repeat transmission may be omitted or the orthogonal cover code may not be applied to the actual repeat transmission. For example, based on the length of the actual repeat transmission being shorter than the length of the orthogonal cover code, the actual repeat transmission may be omitted or the orthogonal cover code may not be applied to the actual repeat transmission. For example, based on the length of the actual repeat transmission being shorter than the length of the orthogonal cover code, a portion of the orthogonal cover code may be applied to the actual repeat transmission.

[0165] For example, based on whether the explicit repeat transmission spans a slot boundary or contains an invalid symbol, the explicit repeat transmission may be omitted or the orthogonal cover code may not be applied to the explicit repeat transmission.

[0166] For example, an actual repeat transmission having a maximum length among the lengths of one or more actual repeat transmissions may be determined to be a valid repeat transmission.

[0167] For example, the length of the actual repeat transmission may be determined by sorting based on the minimum length among the lengths of one or more actual repeat transmissions.

[0168] For example, the explicit repeat transmission may be a repeat transmission set by the base station, and the actual repeat transmission may be a repeat transmission divided by an invalid symbol or slot boundary.

[0169] The proposed method can be applied to devices according to various embodiments of the present disclosure. First, the processor (202) of the base station (200) can control the transceiver (206) to transmit information related to nominal repetition transmission to the device. Then, the processor (202) of the base station (200) can control the transceiver (206) to receive a repetition transmission from the device based on an orthogonal cover code. For example, the orthogonal cover code can be applied to the repetition transmission based on at least one of the length of the actual repetition transmission or the length of the nominal repetition transmission.

[0170] According to one embodiment of the present disclosure, a base station may be provided. For example, the base station may include at least one transceiver; at least one processor; and at least one memory coupled to the at least one processor and storing instructions. For example, the instructions, when executed by the at least one processor, may cause the base station to: transmit information related to a nominal repetition transmission to a device; and receive a repetition transmission from the device based on an orthogonal cover code. For example, the orthogonal cover code may be applied to the repetition transmission based on at least one of the length of an actual repetition transmission or the length of the nominal repetition transmission.

[0171] According to one embodiment of the present disclosure, a processing device configured to control a base station may be provided. For example, the processing device may include at least one processor; and at least one memory coupled to the at least one processor and storing instructions. For example, the instructions, based on execution by the at least one processor, may cause the base station to: transmit information related to a nominal repetition transmission to a device; and receive a repetition transmission from the device based on an orthogonal cover code. For example, the orthogonal cover code may be applied to the repetition transmission based on at least one of the length of an actual repetition transmission or the length of the nominal repetition transmission.

[0172] According to one embodiment of the present disclosure, a non-transitory computer-readable storage medium having instructions recorded thereon may be provided. For example, the instructions, when executed, may cause a base station to: transmit information related to a nominal repetition transmission to a device; and receive a repetition transmission from the device based on an orthogonal cover code. For example, the orthogonal cover code may be applied to the repetition transmission based on at least one of the length of an actual repetition transmission or the length of the nominal repetition transmission.

[0173] According to various embodiments of the present disclosure, multiplexing capacity can be improved by performing repeated transmissions considering the length or number of actual repeated transmissions and / or the length or number of explicit repeated transmissions.

[0174] The various embodiments of the present disclosure may be combined with each other.

[0175] Below, a description is given of devices to which various embodiments of the present disclosure can be applied.

[0176] Although not limited thereto, the various descriptions, functions, procedures, proposals, methods and / or operational flowcharts disclosed in this document may be applied to various fields requiring wireless communication / connectivity (e.g., 5G) between devices.

[0177] Hereinafter, more specific examples will be provided with reference to the drawings. In the drawings / descriptions below, the same drawing reference numerals may represent identical or corresponding hardware blocks, software blocks, or functional blocks, unless otherwise described.

[0178] FIG. 14 illustrates 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.

[0179] 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 a 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 Things) 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 vehicle-to-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., an Advanced Air Mobility (AAM)). The XR device may include 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, a digital signage, a vehicle, a robot, etc. The portable device may include a smartphone, a smart pad, a wearable device (e.g., a smart watch, smart glasses), a computer (e.g., a laptop, etc.), 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 also be implemented as a wireless device, and a specific wireless device (200a) may operate as a base station / network node to other wireless devices.

[0180] Here, the wireless communication technology implemented in the wireless devices (100a to 100f) of the present specification may include not only LTE, NR, and 6G, but also Narrowband Internet of Things for low-power communication. At this time, for example, NB-IoT technology may be an example of LPWAN (Low Power Wide Area Network) technology, and may be implemented with standards such as LTE Cat NB1 and / or LTE Cat NB2, and is not limited to the above-described names. Additionally or alternatively, the wireless communication technology implemented in the wireless devices (100a to 100f) of the present specification may perform communication based on LTE-M technology. At this time, for example, LTE-M technology may be an example of LPWAN technology, and may be called by various names such as eMTC (enhanced Machine Type Communication). For example, LTE-M technology can be implemented by 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 above-described names. Additionally or alternatively, the wireless communication technology implemented in the wireless devices (100a to 100f) of the present specification can include at least one of ZigBee, Bluetooth, and Low Power Wide Area Network (LPWAN) considering low-power communication, and is not limited to the above-described names. For example, ZigBee technology can create personal area networks (PAN) related to small / low-power digital communication based on various standards such as IEEE 802.15.4, and can be called by various names.

[0181] Wireless devices (100a to 100f) can be connected to a network (300) via a base station (200). Artificial Intelligence (AI) technology can be applied to the wireless devices (100a to 100f), and the wireless devices (100a to 100f) can be connected to an AI server (400) via the network (300). The network (300) can be configured using a 3G network, a 4G (e.g., LTE) network, a 5G (e.g., NR) network, etc. The wireless devices (100a to 100f) can communicate with each other via the base station (200) / network (300), but can 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). In addition, IoT devices (e.g., sensors) can communicate directly with other IoT devices (e.g., sensors) or other wireless devices (100a to 100f).

[0182] Wireless communication / connection (150a, 150b, 150c) can be established between wireless devices (100a~100f) / base stations (200), and base stations (200) / base stations (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 communication between base stations (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 each other. For example, wireless communication / connection (150a, 150b, 150c) can transmit / receive signals through various physical channels. To this end, at least some of 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.), and resource allocation processes can be performed based on various proposals of the present disclosure.

[0183] FIG. 15 illustrates a wireless device according to an embodiment of the present disclosure. The embodiment of FIG. 15 may be combined with various embodiments of the present disclosure.

[0184] Referring to FIG. 15, the first wireless device (100) and the second wireless device (200) can transmit and receive wireless signals via various wireless access technologies (e.g., LTE, NR). Here, {the first wireless device (100), the second wireless device (200)} can correspond to {the wireless device (100x), the base station (200)} and / or {the wireless device (100x), the wireless device (100x)} of FIG. 14.

[0185] A first wireless device (100) includes one or more processors (102) and one or more memories (104), and may further include one or more transceivers (106) and / or one or more antennas (108). The processor (102) controls the memories (104) and / or the transceivers (106), and may be configured to implement the descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed in this document. For example, the processor (102) may process information in the memory (104) to generate first information / signal, and then transmit a wireless signal including the first information / signal via the transceiver (106). Furthermore, the processor (102) may receive a wireless signal including second information / signal via the transceiver (106), and then store information obtained from 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 perform some or all of the processes controlled by the processor (102), or may store software code including commands for performing the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this document. Here, the processor (102) and the memory (104) may be part of a communication modem / circuit / chip designed to implement a 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 via one or more antennas (108). The transceiver (106) may include a transmitter and / or a receiver. The transceiver (106) may be used interchangeably with an RF (Radio Frequency) unit. In the present disclosure, a wireless device may also mean a communication modem / circuit / chip.

[0186] A second wireless device (200) includes one or more processors (202), one or more memories (204), and may further include one or more transceivers (206) and / or one or more antennas (208). The processor (202) controls the memories (204) and / or the transceivers (206), and may be configured to implement the descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed in this document. For example, the processor (202) may process information in the memory (204) to generate third information / signals, and then transmit a wireless signal including the third information / signals via the transceivers (206). In addition, the processor (202) may receive a wireless signal including fourth information / signals via the transceivers (206), and then store information obtained from signal processing of the fourth information / signals in the memory (204). The memory (204) may be connected to the processor (202) and may store various information related to the operation of the processor (202). For example, the memory (204) may perform some or all of the processes controlled by the processor (202), or may store software code including commands for performing the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this document. Here, the processor (202) and the memory (204) may be part of a communication modem / circuit / chip designed to implement wireless communication technology (e.g., LTE, NR). The transceiver (206) may be connected to the processor (202) and may transmit and / or receive wireless signals via one or more antennas (208). The transceiver (206) may include a transmitter and / or a receiver. The transceiver (206) may be used interchangeably with an RF unit. In the present disclosure, a wireless device may also mean a communication modem / circuit / chip.

[0187] Hereinafter, the 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 one or more Service Data Units (SDUs) according to the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts 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 operation flowcharts disclosed in this document. One or more processors (102, 202) can generate signals (e.g., baseband signals) including PDUs, SDUs, messages, control information, data or information according to the functions, procedures, proposals and / or methods disclosed herein, and provide the signals to one or more transceivers (106, 206). One or more processors (102, 202) can receive signals (e.g., baseband signals) from one or more transceivers (106, 206) and obtain PDUs, SDUs, messages, control information, data or information according to the descriptions, functions, procedures, proposals, methods and / or operational flowcharts disclosed herein.

[0188] One or more processors (102, 202) may be referred to as a controller, a microcontroller, a microprocessor, or a 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 operational 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. The descriptions, functions, procedures, suggestions, methods and / or operation flowcharts disclosed in this document may be implemented using firmware or software configured to perform one or more processors (102, 202) or stored in one or more memories (104, 204) and executed by one or more processors (102, 202). The descriptions, functions, procedures, suggestions, methods and / or operation flowcharts disclosed in this document may be implemented using firmware or software in the form of codes, instructions and / or sets of instructions.

[0189] One or more memories (104, 204) may be coupled to one or more processors (102, 202) and may store various forms of data, signals, messages, information, programs, codes, instructions, and / or commands. The one or more memories (104, 204) may be configured as ROM, RAM, EPROM, flash memory, hard drives, registers, cache memory, computer-readable storage media, and / or combinations thereof. The one or more memories (104, 204) may be located internally and / or externally to the one or more processors (102, 202). Additionally, the one or more memories (104, 204) may be coupled to the one or more processors (102, 202) via various technologies, such as wired or wireless connections.

[0190] One or more transceivers (106, 206) can transmit user data, control information, wireless signals / channels, etc., as mentioned in the methods and / or flowcharts of this document, to one or more other devices. One or more transceivers (106, 206) can receive user data, control information, wireless signals / channels, etc., as mentioned in the descriptions, functions, procedures, proposals, methods and / or flowcharts of this document, from one or more other devices. For example, one or more transceivers (106, 206) can be connected to one or more processors (102, 202) and can transmit and receive wireless signals. For example, one or more processors (102, 202) can 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 coupled 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, or the like, as referred to in the descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed herein, via 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 received user data, control information, wireless signals / channels, etc. from RF band signals to baseband signals in order to process the received user data, control information, wireless signals / channels, etc. using one or more processors (102, 202).One or more transceivers (106, 206) may convert user data, control information, wireless signals / channels, etc. processed by one or more processors (102, 202) from baseband signals to RF band signals. For this purpose, one or more transceivers (106, 206) may include an (analog) oscillator and / or filter.

[0191] FIG. 16 illustrates a signal processing circuit for a transmission signal according to an embodiment of the present disclosure. The embodiment of FIG. 16 can be combined with various embodiments of the present disclosure.

[0192] 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 operations / functions of FIG. 16 may be performed in the processor (102, 202) and / or the transceiver (106, 206) of FIG. 15. The hardware elements of FIG. 16 may be implemented in the processor (102, 202) and / or the transceiver (106, 206) of FIG. 15. For example, blocks 1010 to 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.

[0193] 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 can include a transport block (e.g., an UL-SCH transport block, a DL-SCH transport block). The wireless signal can be transmitted through various physical channels (e.g., a PUSCH or a PDSCH).

[0194] Specifically, the codeword can be converted into a bit sequence scrambled by a scrambler (1010). The scramble sequence used for scrambling is generated based on an initialization value, and the initialization value may include ID information of the 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 a precoding matrix W of N*M. 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 complex modulation symbols. In addition, the precoder (1040) can perform precoding without performing transform precoding.

[0195] The resource mapper (1050) can map modulation symbols of each antenna port to time-frequency resources. The time-frequency resources can include multiple symbols (e.g., CP-OFDMA symbols, DFT-s-OFDMA symbols) in the time domain and multiple subcarriers in the frequency domain. The signal generator (1060) generates a wireless signal from the mapped modulation symbols, and the generated wireless signal can be transmitted to another device through each antenna. To this end, the signal generator (1060) can include an Inverse Fast Fourier Transform (IFFT) module, a Cyclic Prefix (CP) inserter, a Digital-to-Analog Converter (DAC), a frequency uplink converter, etc.

[0196] The signal processing process for receiving signals in a wireless device can be configured in reverse order of the signal processing process (1010 to 1060) of FIG. 16. For example, a wireless device (e.g., 100, 200 of FIG. 15) can receive wireless signals from the outside through an antenna port / transceiver. The received wireless signals can be converted into baseband signals through a signal restorer. For this purpose, the signal restorer can include a frequency downlink converter, an analog-to-digital converter (ADC), a CP remover, and a fast Fourier transform (FFT) module. Thereafter, the baseband signal can be restored to a codeword through a resource demapper process, a postcoding process, a demodulation process, and a descrambling process. The codewords can be restored to the original information blocks 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.

[0197] Figure 17 illustrates a wireless device according to an embodiment of the present disclosure. The wireless device may be implemented in various forms depending on the use case / service (see Figure 14). The embodiment of Figure 17 may be combined with various embodiments of the present disclosure.

[0198] 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 / units, 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 a 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 the additional elements (140) and controls the overall operation of the wireless device. For example, the control unit (120) may control the electrical / mechanical operation of the wireless device based on the program / code / command / information stored in the memory unit (130). In addition, the control unit (120) may transmit information stored in the memory unit (130) to an external device (e.g., another communication device) via a wireless / wired interface through the communication unit (110), or store information received from an external device (e.g., another communication device) via a wireless / wired interface in the memory unit (130).

[0199] The additional element (140) may be configured in various ways depending on the type of the 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 a financial device), a security device, a climate / environmental device, an AI server / device (Fig. 14, 400), a base station (Fig. 14, 200), a network node, etc. Wireless devices may be mobile or stationary depending on the use / service.

[0200] In FIG. 17, various elements, components, units / parts, and / or modules within the wireless device (100, 200) may be interconnected entirely via a wired interface, or at least some may be wirelessly 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 wired, and the control unit (120) and the first unit (e.g., 130, 140) may be wirelessly connected via the communication unit (110). In addition, each element, component, unit / part, and / or module within the wireless device (100, 200) may further include one or more elements. For example, the control unit (120) may be composed of one or more processor sets. 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 a random access memory (RAM), a dynamic RAM (DRAM), a read only memory (ROM), a flash memory, a volatile memory, a non-volatile memory, and / or a combination thereof.

[0201] Below, the implementation example of Fig. 17 is described in more detail with reference to the drawings.

[0202] FIG. 18 illustrates a mobile device according to an embodiment of the present disclosure. The mobile device may include a smartphone, a smart pad, a wearable device (e.g., a smartwatch, smartglasses), or a portable computer (e.g., a laptop, etc.). The mobile device may be referred to as a Mobile Station (MS), a User Terminal (UT), a Mobile Subscriber Station (MSS), a Subscriber Station (SS), an Advanced Mobile Station (AMS), or a Wireless Terminal (WT). The embodiment of FIG. 18 may be combined with various embodiments of the present disclosure.

[0203] 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 a part of the communication unit (110). Blocks 110 to 130 / 140a to 140c correspond to blocks 110 to 130 / 140 of FIG. 17, respectively.

[0204] The communication unit (110) can transmit and receive signals (e.g., data, control signals, etc.) with other wireless devices and base stations. The control unit (120) can control components of the mobile device (100) to perform various operations. The control unit (120) can include an AP (Application Processor). The memory unit (130) can store data / parameters / programs / codes / commands required for operating the mobile device (100). In addition, the memory unit (130) can store input / output data / information, etc. The power supply unit (140a) supplies power to the mobile device (100) and can include a wired / wireless charging circuit, a battery, etc. The interface unit (140b) can support connection between the mobile device (100) and other external devices. The interface unit (140b) can include various ports (e.g., audio input / output ports, video input / output ports) for connection with external devices. The input / output unit (140c) can input or output video information / signals, audio information / signals, data, and / or information input from 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.

[0205] For example, in the case of data communication, the input / output unit (140c) obtains information / signals (e.g., touch, text, voice, image, video) input by the user, and the obtained 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 other wireless devices or to a base station. In addition, the communication unit (110) can receive wireless signals from other wireless devices or base stations, and then restore the received wireless signals to the 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).

[0206] FIG. 19 illustrates a vehicle or autonomous vehicle according to one embodiment of the present disclosure. The vehicle or autonomous vehicle may be implemented as a mobile robot, a car, a train, a manned or unmanned aerial vehicle (AV), a ship, or the like. The embodiment of FIG. 19 may be combined with various embodiments of the present disclosure.

[0207] Referring to FIG. 19, a vehicle or autonomous vehicle (100) may include an antenna unit (108), a communication unit (110), a control unit (120), a driving unit (140a), a power supply unit (140b), a sensor unit (140c), and an autonomous driving unit (140d). The antenna unit (108) may be configured as a part of the communication unit (110). Blocks 110 / 130 / 140a to 140d correspond to blocks 110 / 130 / 140 of FIG. 17, respectively.

[0208] The communication unit (110) can transmit and receive signals (e.g., data, control signals, etc.) with external devices such as other vehicles, base stations (e.g., base stations, road side units, etc.), and servers. The control unit (120) can control elements of the vehicle or autonomous vehicle (100) to perform various operations. The control unit (120) can include an ECU (Electronic Control Unit). The drive unit (140a) can drive the vehicle or autonomous vehicle (100) on the ground. The drive unit (140a) can include an engine, a motor, a power train, wheels, brakes, a steering device, etc. The power supply unit (140b) supplies power to the vehicle or autonomous vehicle (100) and can include a wired / wireless charging circuit, a battery, etc. The sensor unit (140c) can obtain vehicle status, surrounding environment information, user information, etc. The sensor unit (140c) may include an IMU (inertial measurement unit) sensor, a collision sensor, a wheel sensor, a speed sensor, an incline sensor, a weight detection sensor, a heading sensor, a position module, a vehicle forward / backward sensor, a battery sensor, a fuel sensor, a tire sensor, a steering sensor, a temperature sensor, a humidity sensor, an ultrasonic sensor, an illuminance sensor, a pedal position sensor, etc. The autonomous driving unit (140d) may implement a technology for maintaining a driving lane, a technology for automatically controlling speed such as adaptive cruise control, a technology for automatically driving along a set path, a technology for automatically setting a path and driving when a destination is set, etc.

[0209] For example, the communication unit (110) can receive map data, traffic information data, etc. from an external server. The autonomous driving unit (140d) can generate an autonomous driving route and driving plan based on the acquired data. The control unit (120) can control the drive unit (140a) so that the vehicle or autonomous vehicle (100) moves along the autonomous driving route according to the driving plan (e.g., speed / direction control). During autonomous driving, the communication unit (110) can irregularly / periodically acquire the latest traffic information data from an external server and can acquire surrounding traffic information data from surrounding vehicles. In addition, during autonomous driving, the sensor unit (140c) can acquire vehicle status and surrounding environment information. The autonomous driving unit (140d) can update the autonomous driving route and driving plan based on newly acquired data / information. The communication unit (110) can transmit information regarding the vehicle location, autonomous driving route, driving plan, etc. to the external server. External servers can predict traffic information data in advance using AI technology or other technologies based on information collected from vehicles or autonomous vehicles, and provide the predicted traffic information data to the vehicles or autonomous vehicles.

[0210] The claims set forth in this specification may be combined in various ways. For example, the technical features of the method claims of this specification may be combined and implemented as a device, and the technical features of the device claims of this specification may be combined and implemented as a method. Furthermore, the technical features of the method claims and the technical features of the device claims of this specification may be combined and implemented as a device, and the technical features of the method claims and the technical features of the device claims of this specification may be combined and implemented as a method.

Claims

1. In the method, A step of obtaining information related to nominal repetition transmission; and A step of performing repeated transmission based on an orthogonal cover code; including: A method wherein the orthogonal cover code is applied to the repetition transmission based on at least one of the length of the actual repetition transmission or the length of the explicit repetition transmission.

2. In paragraph 1, A method wherein the length of the actual repeated transmission is the number of times the actual repeated transmission is performed or the number of symbols for the actual repeated transmission, and the length of the explicit repeated transmission is the number of times the explicit repeated transmission is performed or the number of symbols for the explicit repeated transmission.

3. In paragraph 1, A method wherein the above orthogonal cover code is applied to the above repeated transmission in units of the above explicit repeated transmission or in units of multiples of the above explicit repeated transmission.

4. In paragraph 1, A method further comprising: a step of obtaining setting information related to the above orthogonal cover code.

5. In paragraph 4, A method in which the setting information related to the orthogonal cover code is determined to be valid based on the length of the explicit repetition transmission being equal to the length of the actual repetition transmission.

6. In paragraph 4, A method wherein the configuration information related to the orthogonal cover code is determined to be invalid based on the length of the explicit repetition transmission and the length of the actual repetition transmission being not the same.

7. In paragraph 4, A method wherein, based on the length of the explicit repeated transmission and the length of the actual repeated transmission being not the same, the actual repeated transmission is omitted or the orthogonal cover code is not applied to the actual repeated transmission.

8. In paragraph 4, A method wherein the actual repeated transmission is omitted or the orthogonal cover code is not applied to the actual repeated transmission based on the length of the actual repeated transmission being shorter than the length of the orthogonal cover code.

9. In paragraph 4, A method wherein a portion of the orthogonal cover code is applied to the actual repeated transmission based on the length of the actual repeated transmission being shorter than the length of the orthogonal cover code.

10. In paragraph 1, A method wherein the explicit repeated transmission is omitted or the orthogonal cover code is not applied to the explicit repeated transmission based on whether the explicit repeated transmission spans a slot boundary or contains an invalid symbol.

11. In paragraph 1, A method in which an actual repeat transmission having a maximum length among the lengths of one or more actual repeat transmissions is determined to be a valid repeat transmission.

12. In paragraph 1, A method wherein the length of the above actual repeated transmission is determined by sorting based on the minimum length among the lengths of one or more actual repeated transmissions.

13. In paragraph 1, A method wherein the explicit repeated transmission is a repeated transmission set by a base station, and the actual repeated transmission is a repeated transmission divided by an invalid symbol or slot boundary.

14. In the device, At least one transmitter / receiver; at least one processor; and At least one memory connected to said at least one processor and storing instructions, said instructions being executed by said at least one processor, wherein said device causes: Obtain information related to nominal repetition transmission; and Perform repetitive transmission based on orthogonal cover code, A device wherein the orthogonal cover code is applied to the repetition transmission based on at least one of the length of the actual repetition transmission or the length of the explicit repetition transmission.

15. In a processing device set to control a device, at least one processor; and At least one memory connected to said at least one processor and storing instructions, said instructions being executed by said at least one processor, wherein said device causes: Obtain information related to nominal repetition transmission; and Perform repetitive transmission based on orthogonal cover code, A processing device wherein the orthogonal cover code is applied to the repetition transmission based on at least one of the length of the actual repetition transmission or the length of the explicit repetition transmission.

16. A non-transitory computer-readable storage medium that records commands, The above commands, when executed, cause the device to: Obtain information related to nominal repetition transmission; and Perform repetitive transmission based on orthogonal cover code, A non-transitory computer-readable storage medium, wherein the orthogonal cover code is applied to the repetition transmission based on at least one of the length of the actual repetition transmission or the length of the explicit repetition transmission.

17. In the method, A step of transmitting information related to nominal repetition transmission to a device; and A step of receiving a repetitive transmission from the device based on an orthogonal cover code; comprising: A method wherein the orthogonal cover code is applied to the repetition transmission based on at least one of the length of the actual repetition transmission or the length of the explicit repetition transmission.

18. At the base station, At least one transmitter / receiver; at least one processor; and At least one memory connected to said at least one processor and storing instructions, said instructions being executed by said at least one processor, wherein said base station: Causes the device to transmit information related to nominal repetition transmission; and Receiving a repetitive transmission from the above device based on an orthogonal cover code, A base station, wherein the above orthogonal cover code is applied to the repetition transmission based on at least one of the length of the actual repetition transmission or the length of the explicit repetition transmission.

19. In a processing device set to control a base station, at least one processor; and At least one memory connected to said at least one processor and storing instructions, said instructions being executed by said at least one processor, wherein said base station: Causes the device to transmit information related to nominal repetition transmission; and Receiving a repetitive transmission from the above device based on an orthogonal cover code, A processing device wherein the orthogonal cover code is applied to the repetition transmission based on at least one of the length of the actual repetition transmission or the length of the explicit repetition transmission.

20. A non-transitory computer-readable storage medium that records commands, The above commands, when executed, cause the base station to: Causes the device to transmit information related to nominal repetition transmission; and Receiving a repetitive transmission from the above device based on an orthogonal cover code, A non-transitory computer-readable storage medium, wherein the orthogonal cover code is applied to the repetition transmission based on at least one of the length of the actual repetition transmission or the length of the explicit repetition transmission.

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