Method and apparatus for configuring TDD related to non-terrestrial communication
By dynamically setting up distinct resource configurations for different height areas, the system effectively manages interference and enhances communication efficiency in wireless communication systems.
Patent Information
- Application Number
- PCT/KR2024/014300
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-01-23
- Filing Date
- 2024-09-23
- Publication Date
- 2025-04-03
AI Technical Summary
Current wireless communication systems face challenges in efficiently managing interference between cells, particularly in non-communicating communication scenarios, where devices operate in different height areas with varying interference patterns.
The proposed solution involves setting up different resource configurations for uplink, downlink, and flexible resources based on specific height areas, allowing devices to adapt their communication settings dynamically to minimize interference and optimize performance.
This approach enables efficient management of interference between cells, improving communication quality and reducing errors in non-communicating communication scenarios by tailoring resource allocation to the specific height area of each device.
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Figure KR2024014300_03042025_PF_FP_ABST
Abstract
Description
Method and device for setting up TDD for non-terrestrial communication
[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: obtaining a first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource; and performing communication based on the first configuration. For example, the first configuration may be set for a first height region.
[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 a first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource; and perform communication based on the first configuration. For example, the first configuration may be set for a first height region.
[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, based on execution by the at least one processor, may cause the device to: obtain a first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource; and perform communication based on the first configuration. For example, the first configuration may be configured for a first height region.
[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 a first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource; and perform communication based on the first configuration. For example, the first configuration may be set for a first height region.
[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] FIG. 8 illustrates a procedure for a terminal to perform V2X or SL (sidelink) communication according to a resource allocation mode, according to one embodiment of the present disclosure.
[0017] FIG. 9 illustrates a slot format according to one embodiment of the present disclosure.
[0018] FIG. 10 illustrates a method by which a device performs wireless communication according to one embodiment of the present disclosure.
[0019] FIG. 11 illustrates a method for a base station to perform wireless communication according to one embodiment of the present disclosure.
[0020] FIG. 12 illustrates a communication system (1) according to one embodiment of the present disclosure.
[0021] FIG. 13 illustrates a wireless device according to an embodiment of the present disclosure.
[0022] FIG. 14 illustrates a signal processing circuit for a transmission signal 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 mobile device according to an embodiment of the present disclosure.
[0025] FIG. 17 illustrates a vehicle or autonomous vehicle according to one embodiment of the present disclosure.
[0026] 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."
[0027] 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."
[0028] In the present disclosure, “at least one of A and B” may mean “only A,” “only B,” or “both A and B.” Additionally, in the present disclosure, the expressions “at least one of A or B” or “at least one of A and / or B” may be interpreted identically to “at least one of A and B.”
[0029] 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.”
[0030] Additionally, parentheses used in the present disclosure may mean "for example." Specifically, when indicated as "control information (PDCCH)", "PDCCH" may be proposed as an example of "control information." In other words, "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."
[0031] In the following explanation, ‘when, if, in case of’ can be replaced with ‘based on’.
[0032] Technical features individually described in one drawing in this disclosure may be implemented individually or simultaneously.
[0033] 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.
[0034] 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.
[0035] 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.
[0036] 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.
[0037] 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.
[0038] 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.
[0039] 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).
[0040] 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.
[0041] 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).
[0042] In step S107, the first device and the second device may perform signaling of control information. Here, for example, the control information may be defined in various layers, such as a layer 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.
[0043] In step S109, the first device and the second device may transmit and / or receive data. For example, the first device and the second device may process, 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.
[0044] 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.
[0045] 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.
[0046] 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, i.e., 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.
[0047] 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.
[0048] 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).
[0049] 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.
[0050] For example, the functions of the PDCP layer in the user plane may include the forwarding of user data, header compression, and ciphering. For example, the functions of the PDCP layer in the control plane may include the forwarding of control plane data and ciphering / integrity protection.
[0051] 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.
[0052] 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).
[0053] 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.
[0054] 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).
[0055] 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).
[0056] 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.
[0057] 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
[0058] 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.
[0059] 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.
[0060] 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.
[0061] Referring to FIG. 4, for example, a slot may include multiple symbols in the time domain. For example, a carrier may include multiple subcarriers in the frequency domain. For example, a resource block (RB) may be defined as multiple consecutive subcarriers in the frequency domain. For example, a bandwidth part (BWP) may be defined as multiple consecutive (P)RBs ((physical) resource blocks) in the frequency domain, and may correspond to 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.
[0062] 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.
[0063] For example, the BWP may be at least one of an active BWP, an initial BWP, and / or a default BWP. For example, the 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 the 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.
[0064] 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.
[0065] 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.
[0066] 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.
[0067] 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.
[0068] 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.
[0069] - 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. This means 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. Furthermore, AI can 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.
[0070] - 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.
[0071] - Large-scale MIMO technology
[0072] - Hologram beamforming (HBF)
[0073] - Optical wireless technology
[0074] - Free-space optical transmission backhaul network (FSO backhaul network)
[0075] - Quantum communication
[0076] - Cell-free communication
[0077] - Integration of wireless information and power transmission
[0078] - Integration of wireless communication and sensing
[0079] - Integrated access and backhaul network
[0080] - Big data analysis
[0081] - Reconfigurable intelligent surface
[0082] - metaverse
[0083] - Blockchain
[0084] Advanced Air Mobility (AAM): AAM can be a broad concept encompassing urban air mobility (UAM), regional air mobility (RAM), and uncrewed aerial systems (UAS). For example, AAM can include UAM, RAM, UAS, and uncrewed aerial vehicles (UAVs).
[0085] - 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.
[0086] 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.
[0087] - Integrated sensing and communication (ISAC): Wireless sensing is a technology that uses radio frequencies to determine the instantaneous linear velocity, angle, distance (range), etc. of an object, thereby obtaining information about the characteristics of the environment and / or objects within the environment.
[0088] - Reconfigurable intelligent surface (RIS): 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.
[0089] FIG. 7 illustrates an example of a communication scenario based on a 6G system, according to an embodiment of the present disclosure. The embodiment of FIG. 7 may be combined with various embodiments of the present disclosure.
[0090] 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.
[0091] FIG. 8 illustrates a procedure for a terminal to perform V2X or SL (sidelink) communication according to a resource allocation mode, according to an embodiment of the present disclosure. The embodiment of FIG. 8 may be combined with various embodiments of the present disclosure.
[0092] Referring to (a) of FIG. 8, in resource allocation mode 1, the base station may schedule SL resources to be used by the terminal for SL transmission. For example, in step S800, the base station may transmit information related to SL resources and / or information related to UL resources to the first terminal. For example, the UL resources may include PUCCH resources and / or PUSCH resources. For example, the UL resources may be resources for reporting SL HARQ (hybrid automatic repeat request) feedback to the base station.
[0093] For example, a first terminal may receive information related to a dynamic grant (DG) resource and / or information related to a configured grant (CG) resource from a base station. For example, a CG resource may include a CG type 1 resource or a CG type 2 resource. In this specification, a DG resource may be a resource that a base station configures / allocates to the first terminal via downlink control information (DCI). In this specification, a CG resource may be a (periodic) resource that a base station configures / allocates to the first terminal via DCI and / or an RRC message. For example, in the case of a CG type 1 resource, the base station may transmit an RRC message including information related to the CG resource to the first terminal. For example, in the case of a CG type 2 resource, the base station may transmit an RRC message including information related to the CG resource to the first terminal, and the base station may transmit a DCI related to activation or release of the CG resource to the first terminal.
[0094] In step S810, the first terminal may transmit a physical sidelink control channel (PSCCH) (e.g., sidelink control information (SCI) or 1st-stage SCI) to the second terminal based on the resource scheduling. In step S820, the first terminal may transmit a physical sidelink shared channel (PSSCH) (e.g., 2nd-stage SCI, MAC PDU, data, etc.) related to the PSCCH to the second terminal. In step S830, the first terminal may receive a physical sidelink feedback channel (PSFCH) related to the PSCCH / PSSCH from the second terminal. For example, HARQ feedback information (e.g., negative acknowledgment (NACK) information or positive acknowledgment (ACK) information) may be received from the second terminal via the PSFCH. In step S840, the first terminal may transmit / report HARQ feedback information to the base station via PUCCH or PUSCH. For example, the HARQ feedback information reported to the base station may be information generated by the first terminal based on HARQ feedback information received from the second terminal. For example, the HARQ feedback information reported to the base station may be information generated by the first terminal based on a rule set in advance. For example, the DCI may be DCI for SL scheduling.
[0095] Referring to (b) of FIG. 8, in resource allocation mode 2, the terminal can determine SL transmission resources within SL resources set by the base station / network or preset SL resources. For example, the set SL resources or preset SL resources may be a resource pool. For example, the terminal can autonomously select or schedule resources for SL transmission. For example, the terminal can perform SL communication by selecting resources by itself within the set resource pool. For example, the terminal can select resources by itself within a selection window by performing sensing and resource (re)selection procedures. For example, the sensing can be performed on a subchannel basis. For example, in step S810, the first terminal that has selected resources by itself within the resource pool transmits PSCCH (e.g., sidelink control information (SCI) or 1) using the resources. st -stage SCI) can be transmitted to the second terminal. In step S820, the first terminal transmits the PSSCH (e.g., 2) related to the PSCCH. nd -stage SCI, MAC PDU, data, etc.) can be transmitted to the second terminal. In step S830, the first terminal can receive a PSFCH related to the PSCCH / PSSCH from the second terminal.
[0096] Referring to (a) or (b) of FIG. 8, for example, a first terminal may transmit an SCI to a second terminal on a PSCCH. Or, for example, the first terminal may transmit two consecutive SCIs (e.g., 2-stage SCIs) to the second terminal on the PSCCH and / or the PSSCH. In this case, the second terminal may decode the two consecutive SCIs (e.g., 2-stage SCIs) to receive the PSSCH from the first terminal. In the present specification, an SCI transmitted on a PSCCH is 1 st SCI, 1st SCI, 1st -stage SCI or 1 st -stage SCI format, and the SCI transmitted on the PSSCH is 2 nd SCI, 2nd SCI, 2 nd -stage SCI or 2 nd -It can be called a stage SCI format.
[0097] For example, 1 st -stage SCI format may include SCI format 1-A and / or SCI format 1-B, and 2 nd -stage SCI formats may include SCI Format 2-A, SCI Format 2-B, SCI Format 2-C, and / or SCI Format 2-D.
[0098] Below, an example of SCI format 1-A is described.
[0099] SCI Format 1-A is a 2-bit format on the PSSCH and PSSCH nd -stage is used for scheduling SCI.
[0100] The following information is transmitted using SCI Format 1-A.
[0101] - Priority - 3 bits
[0102] - Frequency resource allocation - If the value of the upper layer parameter sl-MaxNumPerReserve is set to 2, then ceiling (log2(N SL subChannel(N SL subChannel+1) / 2)) bits; otherwise, if the value of the upper layer parameter sl-MaxNumPerReserve is set to 3, ceiling log2(N SL subChannel(N SL subChannel+1)(2N SL subChannel+1) / 6) bits
[0103] - Time resource allocation - 5 bits if the value of the upper layer parameter sl-MaxNumPerReserve is set to 2; otherwise, 9 bits if the value of the upper layer parameter sl-MaxNumPerReserve is set to 3.
[0104] - Resource reservation cycle - ceiling (log2N) rsv_period ) bits, where N rsv_period The number of entries in the upper layer parameter sl-ResourceReservePeriodList if the upper layer parameter sl-MultiReserveResource is set; otherwise, 0 bits.
[0105] - DMRS pattern - ceiling (log2N pattern ) bits, where N pattern is the number of DMRS patterns set by the upper layer parameter sl-PSSCH-DMRS-TimePatternList.
[0106] - 2 nd -stage SCI format - 2 bits
[0107] - Beta_Offsets indicator - 2 bits as provided by the upper layer parameter sl-BetaOffsets2ndSCI
[0108] - Number of DMRS ports - 1 bit
[0109] - Modulation and coding method - 5 bits
[0110] - Additional MCS table indicator - 1 bit if one MCS table is set by the upper layer parameter sl-Additional-MCS-Table; 2 bits if two MCS tables are set by the upper layer parameter sl-Additional-MCS-Table; otherwise 0 bits
[0111] - PSFCH Overhead Indicator - 1 bit if the upper layer parameter sl-PSFCH-Period = 2 or 4; otherwise 0 bit
[0112] - Reserved bits - The number of bits determined by the upper layer parameter sl-NumReservedBits, whose value is set to 0.
[0113] Below, an example of SCI format 2-A is described.
[0114] In HARQ operation, when HARQ-ACK information contains ACK or NACK, or when HARQ-ACK information contains only NACK, or when there is no feedback of HARQ-ACK information, SCI format 2-A is used for decoding PSSCH.
[0115] The following information is transmitted via SCI Format 2-A.
[0116] - HARQ process number - 4 bits
[0117] - New data indicator - 1 bit
[0118] - Redundancy version - 2 bits
[0119] - Source ID - 8 bits
[0120] - Destination ID - 16 bits
[0121] - HARQ feedback enable / disable indicator - 1 bit
[0122] - Cast type indicator - 2 bits as defined in Table 3
[0123] - CSI request - 1 bit
[0124] Cast Type Indicator ValueCast Type00Broadcast01Groupcast if HARQ-ACK information contains ACK or NACK10Unicast11Groupcast if HARQ-ACK information contains only NACK
[0125] Below, an example of SCI format 2-B is described.
[0126] In HARQ operation, when HARQ-ACK information contains only NACK or there is no feedback of HARQ-ACK information, SCI format 2-B is used for decoding PSSCH.
[0127] The following information is transmitted via SCI Format 2-B.
[0128] - HARQ process number - 4 bits
[0129] - New data indicator - 1 bit
[0130] - Redundancy version - 2 bits
[0131] - Source ID - 8 bits
[0132] - Destination ID - 16 bits
[0133] - HARQ feedback enable / disable indicator - 1 bit
[0134] - Zone ID - 12 bits
[0135] - Communication range requirement - 4 bits determined by the upper layer parameter sl-ZoneConfigMCR-Index
[0136] Referring to (a) or (b) of FIG. 8, in step S830, the first terminal may receive a PSFCH. For example, the first terminal and the second terminal may determine PSFCH resources, and the second terminal may transmit HARQ feedback to the first terminal using the PSFCH resources.
[0137] Referring to (a) of FIG. 8, in step S840, the first terminal may transmit SL HARQ feedback to the base station via PUCCH and / or PUSCH.
[0138] Below, the HARQ (hybrid automatic repeat request) procedure is described.
[0139] For example, SL HARQ feedback can be enabled for unicast. For example, SL HARQ feedback can be enabled for groupcast. For example, two HARQ feedback options can be supported for groupcast.
[0140] (1) Groupcast Option 1: If a receiving terminal fails to decode a transport block associated with the PSCCH after decoding a PSCCH targeting the receiving terminal, the receiving terminal may transmit a negative acknowledgment (NACK) to the transmitting terminal via a PSFCH. On the other hand, if the receiving terminal decodes a PSCCH targeting the receiving terminal and successfully decodes a transport block associated with the PSCCH, the receiving terminal may not transmit a positive acknowledgment (ACK) to the transmitting terminal.
[0141] (2) Groupcast Option 2: If the receiving terminal fails to decode a transport block associated with the PSCCH after decoding the PSCCH targeting the receiving terminal, the receiving terminal can transmit a NACK to the transmitting terminal via the PSFCH. In addition, if the receiving terminal decodes the PSCCH targeting the receiving terminal and successfully decodes the transport block associated with the PSCCH, the receiving terminal can transmit an ACK to the transmitting terminal via the PSFCH.
[0142] Meanwhile, various slot formats can be supported for flexible resource scheduling. Table 4 shows an example of slot formats for a typical CP. In Table 4, D can indicate downlink, U can indicate uplink, and F can indicate flexible.
[0143] Symbol number in format slot 0123456789101112130DDDDDDDDDDDDDD1UUUUUUUUUUUUUUU2FFFFFFFFFFFFFF3DDDDDDDDDDDDDF4DDDDDDDDDDDDFF5DDDDDDDDDDDFFF6DDDDDDDDDDFFFF7DDDDDDDDDFFFFF8FFFFFFFFFFFFFU9FFFFFFFFFFFFUU10FUUUUUUUUUUUU......50DDFFUUUDDFFUUU51DFFUUUUDFFUUUU52DFFFFFUDFFFFFU53DDFFFFUDDFFFFU54FFFFFDDDDDDD55DDFFFUUUDDDDDD56 - 254Reserved255Terminals may specify slots based on tdd-UL-DL-ConfigurationCommon, tdd-UL-DL-ConfigurationDedicated, and / or DCI formats. You can decide the slot format
[0144] For example, the terminal may receive information about the slot format from the base station. For example, the terminal may receive subcarrier spacing and / or TDD (time division duplex) UL-DL configuration from the base station, and the TDD UL-DL configuration may include at least one of a DL / UL transmission period, the number of DL slots, the number of DL symbols, the number of UL slots, and / or the number of UL symbols. In this case, for example, the terminal may determine that the slot format is the same as the embodiment of FIG. 9 based on the received information.
[0145] FIG. 9 illustrates a slot format according to one embodiment of the present disclosure. The embodiment of FIG. 9 can be combined with various embodiments of the present disclosure.
[0146] Meanwhile, in the next system, communication may be performed between a base station and an automotive aerial mobility (AAM) terminal, and / or communication may be performed between AAM terminals. The AAM terminal may vary in height, and in some cases, may be positioned lower or higher than the base station. Meanwhile, depending on the height of the AAM terminal, the degree of securing LOS (line of sight) in communication between the base station and the terminal may vary. In particular, when the AAM terminal is positioned higher than the height of the base station, cell coverage tends to increase as communication occurs in a relatively LOS environment. Accordingly, the range of the cell boundary may also increase relatively.
[0147] Meanwhile, when link directions differ between terminals serving different cells at the cell edge, the UL transmission of a specific terminal may cause strong interference with the DL reception of another terminal. Therefore, it is necessary to efficiently manage inter-cell interference during cell deployment or cell operation. For example, the purpose of time resources such as DL or UL for all or part of a time interval can be defined in advance or fixed through RRC settings, and interference can be managed by having surrounding cells also have settings corresponding to this. However, as described above, in the case of AAM terminals, cell coverage can vary depending on the height, and thus the inter-cell interference needs to be managed accordingly in the above situation.
[0148] Meanwhile, for AAM terminals, traffic trends may vary depending on the terminal's height. Specifically, for example, the amount of downlink (control-related) traffic from the base station may decrease when the AAM terminal's height exceeds a certain level.
[0149] For example, the TDD configuration and / or slot format may be configured differently and / or independently for each height of the terminal or each height region. For example, the TDD configuration and / or slot format may be configured differently and / or independently for each height of the terminal or each height region via RRC or SIB signaling.
[0150] For example, a time resource that is semi-statically configured and / or dynamically indicated as DL in a first height region (e.g., when the height is below or equal to a certain level (a threshold set in RRC)) may also be semi-statically configured and / or dynamically indicated as DL in a second height region (e.g., when the height is above or equal to a certain level (a threshold set in RRC)).
[0151] For example, a time resource that is semi-statically set and / or dynamically indicated as UL in a first height region (e.g., when the height is below or equal to a certain level (a threshold set in RRC)) may also be semi-statically set and / or dynamically indicated as UL in a second height region (e.g., when the height is above or equal to a certain level (a threshold set in RRC)).
[0152] For example, all or part of the time resources that are flexibly semi-statically set and / or dynamically indicated in a first height region (e.g., when the height is below or equal to a certain level (a threshold set in RRC)) can be semi-statically set and / or dynamically indicated as DL or UL in a second height region (e.g., when the height is above or equal to a certain level (a threshold set in RRC)).
[0153] For example, the set of time resources that are semi-statically set and / or dynamically indicated as DL in a first height region (e.g., when the height is below or equal to a certain level (a threshold set in RRC)) may be a subset of the set of time resources that are semi-statically set and / or dynamically indicated as DL in a second height region (e.g., when the height is above or equal to a certain level (a threshold set in RRC)).
[0154] For example, the set of time resources that are semi-statically set and / or dynamically indicated as UL in a first height region (e.g., when the height is below or equal to a certain level (a threshold set in RRC)) may be a subset of the set of time resources that are semi-statically set and / or dynamically indicated as UL in a second height region (e.g., when the height is above or equal to a certain level (a threshold set in RRC)).
[0155] For example, DL semi-persistent scheduling (SPS) resources and / or CG (configured grant) PUSCH resources and / or CG SL resources and / or CSI measurement and / or reporting timing may be configured differently and / or independently for each height of the UE or each height region. For example, DL semi-persistent scheduling (SPS) resources and / or CG (configured grant) PUSCH resources and / or CG SL resources and / or CSI measurement and / or reporting timing may be configured differently and / or independently for each height of the UE or each height region via RRC or SIB signaling.
[0156] Meanwhile, in the case of an AAM terminal, the height of the terminal may change rapidly depending on a specific situation, and the above cases may include cases where the height of the terminal increases rapidly and / or cases where the height of the terminal decreases rapidly.
[0157] For example, the terminal and / or the base station may perform DL transmission / reception and / or UL transmission / reception based on a reference TDD configuration determined based on an intersection for each of DL and / or UL in TDD configurations for different height regions. For example, the terminal and / or the base station may perform DL transmission / reception and / or UL transmission / reception based on a reference TDD configuration for a specific height region (e.g., a first height region or a second height region).
[0158] For example, resource pool configuration for sidelink operation and / or determination of a set of SL available slots may be determined based on the above-mentioned reference TDD configuration.
[0159] For example, for a terminal, reception or transmission of a scheduled and / or configured PDSCH and / or PUSCH in a first height region (e.g., when the height is below or equal to a certain level (a threshold set in RRC)) may be omitted in a second height region (e.g., when the height is above or equal to a certain level (a threshold set in RRC)).
[0160] For example, the above operation may be applied only when the PDSCH time resource and / or the PUSCH time resource is flexible in the first height region and / or is flexible in the second height region.
[0161] For example, for a terminal, transmission of a scheduled and / or configured PDSCH and / or PUSCH in a second height region (e.g., when the height is above or exceeds a certain level (a threshold set in RRC)) may be canceled in a first height region (e.g., when the height is below or less than a certain level (a threshold set in RRC)).
[0162] For example, the above operation may be applied only when the PDSCH time resource and / or the PUSCH time resource is flexible in the first height region and / or is flexible in the second height region.
[0163] For example, if the height of the terminal changes from the previous height region to the next height region, and if the PDSCH resource is changed from DL to flexible, the scheduled PDSCH reception of the terminal may be omitted.
[0164] For example, if the height of the terminal changes from the previous height region to the next height region, or if the PUSCH resource changes from UL to flexible, the scheduled and / or configured PUSCH transmission of the terminal may be omitted.
[0165] For example, in the case of a slot format indicator via DCI, the value may be distinguished according to the height of the terminal, and / or the slot format indicator may be indicated for each height area of the terminal, and / or when the slot format indicator is indicated via DCI, information on the corresponding height area of a specific terminal may be indicated together.
[0166] For example, depending on the height region of the terminal, the search space configuration and / or the PDCCH monitoring occasion and / or the CORESET configuration (e.g., aggregation level, DCI format) and / or the slot aggregation configuration (for PDSCH and / or PUSCH) may be configured differently and / or independently.
[0167] For example, if the position of the terminal changes from a first height region (e.g., when the height is below or equal to a certain level (a threshold set in RRC)) to a second height region (e.g., when the height is above or equal to a certain level (a threshold set in RRC)) and / or if the position of the terminal changes in the opposite direction, the terminal may not attempt CSI-RS detection and / or may not perform PDCCH monitoring.
[0168] For example, the above operation may be applied only when the time resource related to CSI measurement and / or PDCCH monitoring is flexible in the first height region and / or flexible in the second height region. For example, a subset of flexibility may be configured and / or provided.
[0169] For example, tdd-UL-DL-ConfigurationCommon may be the same regardless of the height of the terminal, and / or tdd-UL-DL-ConfigurationDedicated may be different depending on the height of the terminal, and / or may be independently configured in RRC for each height region.
[0170] That is, even if the height of the terminal changes, the DL reception operation can continue in the time domain set to DL through tdd-UL-DL-ConfigurationCommon and / or tdd-UL-DL-ConfigurationDedicated, and / or the UL transmission operation can continue in the time domain set to UL.
[0171] For example, at a single base station, DL transmission or UL reception can be performed at a single point in time regardless of the height of the terminals. For example, in the case of full-duplex, DL transmission or UL reception can be performed at a single base station at a single point in time regardless of the height of the terminals.
[0172] For example, the terminal may not perform PDCCH monitoring and / or CSI measurement and / or UL transmission configured in a higher layer and / or periodic or semi-persistent UL transmission on flexible time resources in the second height region (e.g., when the height is above or exceeds a certain level (a threshold configured in RRC)).
[0173] For example, the base station may instruct / set information to the terminal about the operation of the terminal in time resources for a specific height region (e.g., a second height region) and / or for a case where the slot type is flexible per height region and / or about constraints on omitting all or part of the DL reception operation and / or UL transmission operation, and / or the information about the specific cell may be shared or exchanged between cells or between base stations.
[0174] Although the embodiments of the present disclosure describe operations according to the height of the terminal, the idea of the present disclosure can be extended and applied to operations according to the position of the terminal according to the x-axis coordinate and / or y-axis coordinate and / or other coordination system of the terminal in addition to the height of the terminal.
[0175] In the embodiments of the present disclosure, the description of the height of the terminal is merely an embodiment, and the height may be expressed by replacing or extending it with air pressure and / or water pressure and / or relative height from the base station height and / or (vertical) distance from the ground and / or shape of the zone, etc.
[0176] In the embodiment of the present disclosure, the AAM terminal performing different operations according to height may be determined based on the actual height of the terminal, and / or may be determined in the application layer or a higher layer based on the height of the terminal, and / or may be determined based on the timing of updating height information based on information exchanged between the terminal and the base station or that timing.
[0177] The various schemes of the present disclosure can be applied differently per link (DL or UL or SL) and / or per cell and / or per carrier and / or per unicast session (group) and / or per cast type and / or per transmission priority value and / or per reception priority value and / or per SL transmission with SL HARQ-ACK feedback enabled / disabled and / or per SL HARQ-ACK feedback option and / or per QoS parameter and / or per (remaining) packet delay budget (PDB) and / or per congestion control level and / or per (transmission and / or reception) resource pool and / or per UE's mobility-related information (e.g., speed, velocity, direction, acceleration, position, height, etc.) and / or per sidelink transmission or reception and / or per HARQ process and / or per beam process and / or per source ID and / or per destination ID and / or per TB. For example, in the embodiments of the present disclosure, the unit of (pre-)configuration can be configured in the form of the above different combinations. For example, in an embodiment of the present disclosure, parameter indication and management via PSCCH and / or PSSCH may be performed in units of the above different combinations.
[0178] In the embodiments of the present disclosure, (pre)configuration may mean pre-configuration (based on signaling from a server or at the time of product shipment), configuration from a base station, or configuration via PC5-RRC between terminals.
[0179] In the embodiments of the present disclosure, the AAM terminal may represent a terminal whose position in the vertical direction may vary, a terminal operating in an environment with varying atmospheric pressure, a terminal operating in an environment with varying water pressure, and / or a terminal operating in a situation where the surrounding environment, such as temperature, is diverse, and the idea of the present disclosure can be extended to terminals in various situations / environments.
[0180] The various methods of the present disclosure may be applied differently to each SL channel. The various methods of the present disclosure may be applied differently depending on the type of information contained in the SL channel.
[0181] According to various embodiments of the present disclosure, uplink resources, downlink resources, flexible resources, etc. can be configured differently or independently, taking non-terrestrial communications into account. This allows for efficient management of inter-cell interference in non-terrestrial communications.
[0182] FIG. 10 illustrates a method for a device to perform wireless communication according to an embodiment of the present disclosure. The embodiment of FIG. 10 may be combined with various embodiments of the present disclosure.
[0183] Referring to FIG. 10, in step S1010, the device may acquire a first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource. In step S1020, the device may perform communication based on the first configuration. For example, the first configuration may be set for a first height region.
[0184] For example, the first setting may be set independently of a second setting that includes at least one of information related to a second uplink resource, information related to a second downlink resource, or information related to a second flexible resource, which is set for a second height region. For example, the time domain set for the first downlink resource may be a subset of the time domain set for the second downlink resource. For example, the time domain set for the first uplink resource may be a subset of the time domain set for the second uplink resource.
[0185] For example, a time domain set as the first flexible resource for the first height domain can be set as an uplink resource or a downlink resource based on a second setting set for the second height domain.
[0186] For example, based on the first height region being lower than the second height region, the time region set as the first flexible resource for the first height region can be set as an uplink resource or a downlink resource based on the second setting set for the second height region.
[0187] For example, based on a change in position of the device between the first height region and the second height region, communication can be performed based on a third configuration. For example, the third configuration can be obtained based on an intersection of (i) the first configuration for the first height region, which includes at least one of information related to the first uplink resource, information related to the first downlink resource, or information related to the first flexible resource, and (ii) the second configuration for the second height region, which includes at least one of information related to the second uplink resource, information related to the second downlink resource, or information related to the second flexible resource. For example, the third configuration may be selected by the device from among (i) the first configuration for the first height region including at least one of information related to the first uplink resource, information related to the first downlink resource, or information related to the first flexible resource, and (ii) the second configuration for the second height region including at least one of information related to the second uplink resource, information related to the second downlink resource, or information related to the second flexible resource.
[0188] For example, based on a change in the position of the device between the first height region and the second height region, transmission or reception on a resource scheduled or set in the first height region may be omitted in the second height region.
[0189] For example, based on a change in the position of the device between the first height region and the second height region, transmission or reception on a resource scheduled or set in the second height region may be omitted in the first height region.
[0190] For example, the first setting may be TDD (time division duplex) UL (uplink)-DL (downlink) setting or slot format information.
[0191] For example, the first height region may be lower than the second height region.
[0192] 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 a first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource. Then, the processor (102) of the device (100) can control the transceiver (106) to perform communication based on the first configuration. For example, the first configuration can be set for a first height region.
[0193] 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 a first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource; and perform communication based on the first configuration. For example, the first configuration may be set for a first height region.
[0194] 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, based on execution by the at least one processor, may cause the device to: obtain a first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource; and perform communication based on the first configuration. For example, the first configuration may be configured for a first height region.
[0195] 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 a first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource; and perform communication based on the first configuration. For example, the first configuration may be set for a first height region.
[0196] FIG. 11 illustrates a method for a base station to perform wireless communication according to an embodiment of the present disclosure. The embodiment of FIG. 11 may be combined with various embodiments of the present disclosure.
[0197] Referring to FIG. 11, in step S1110, the base station may transmit to the device a first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource. In step S1120, the base station may transmit to the device a second configuration including at least one of information related to a second uplink resource, information related to a second downlink resource, or information related to a second flexible resource. For example, the first configuration may be set for a first height region, and the second configuration may be set for a second height region.
[0198] For example, based on the device being associated with the first height region, communication may be performed based on the first setting.
[0199] For example, based on the device being associated with the second height region, communication may be performed based on the second setting.
[0200] For example, the first setting may be set independently of the second setting. For example, the time domain set as the first downlink resource may be a subset of the time domain set as the second downlink resource. For example, the time domain set as the first uplink resource may be a subset of the time domain set as the second uplink resource.
[0201] For example, a time domain set as the first flexible resource for the first height domain can be set as an uplink resource or a downlink resource based on a second setting set for the second height domain.
[0202] For example, based on the first height region being lower than the second height region, the time region set as the first flexible resource for the first height region can be set as an uplink resource or a downlink resource based on the second setting set for the second height region.
[0203] For example, based on a change in position of the device between the first height region and the second height region, communication can be performed based on a third configuration. For example, the third configuration can be obtained based on an intersection of (i) the first configuration for the first height region, which includes at least one of information related to the first uplink resource, information related to the first downlink resource, or information related to the first flexible resource, and (ii) the second configuration for the second height region, which includes at least one of information related to the second uplink resource, information related to the second downlink resource, or information related to the second flexible resource. For example, the third configuration may be selected by the device from among (i) the first configuration for the first height region including at least one of information related to the first uplink resource, information related to the first downlink resource, or information related to the first flexible resource, and (ii) the second configuration for the second height region including at least one of information related to the second uplink resource, information related to the second downlink resource, or information related to the second flexible resource.
[0204] For example, based on a change in the position of the device between the first height region and the second height region, transmission or reception on a resource scheduled or set in the first height region may be omitted in the second height region.
[0205] For example, based on a change in the position of the device between the first height region and the second height region, transmission or reception on a resource scheduled or set in the second height region may be omitted in the first height region.
[0206] For example, the first setting may be a first TDD (time division duplex) UL (uplink)-DL (downlink) setting or first slot format information, and the second setting may be a second TDD UL-DL setting or second slot format information.
[0207] 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 to the device a first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource. Then, the processor (202) of the base station (200) can control the transceiver (206) to transmit to the device a second configuration including at least one of information related to a second uplink resource, information related to a second downlink resource, or information related to a second flexible resource. For example, the first configuration can be set for a first height region, and the second configuration can be set for a second height region.
[0208] 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, based on execution by the at least one processor, may cause the base station to: transmit to a device a first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource; and transmit to the device a second configuration including at least one of information related to a second uplink resource, information related to a second downlink resource, or information related to a second flexible resource. For example, the first configuration may be configured for a first height region, and the second configuration may be configured for a second height region.
[0209] 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 a first configuration to a device, the first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource; and transmit a second configuration to the device, the second configuration including at least one of information related to a second uplink resource, information related to a second downlink resource, or information related to a second flexible resource. For example, the first configuration may be configured for a first height region, and the second configuration may be configured for a second height region.
[0210] 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 to a device a first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource; and transmit to the device a second configuration including at least one of information related to a second uplink resource, information related to a second downlink resource, or information related to a second flexible resource. For example, the first configuration may be configured for a first height region, and the second configuration may be configured for a second height region.
[0211] The various embodiments of the present disclosure may be combined with each other.
[0212] Below, a description is given of devices to which various embodiments of the present disclosure can be applied.
[0213] 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.
[0214] 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.
[0215] FIG. 12 illustrates a communication system (1) according to one embodiment of the present disclosure. The embodiment of FIG. 12 can be combined with various embodiments of the present disclosure.
[0216] Referring to FIG. 12, 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.
[0217] 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.
[0218] 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).
[0219] 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.
[0220] FIG. 13 illustrates a wireless device according to an embodiment of the present disclosure. The embodiment of FIG. 13 may be combined with various embodiments of the present disclosure.
[0221] Referring to FIG. 13, 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. 12.
[0222] 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.
[0223] 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.
[0224] 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.
[0225] 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.
[0226] 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.
[0227] 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.
[0228] FIG. 14 illustrates a signal processing circuit for a transmission signal according to an embodiment of the present disclosure. The embodiment of FIG. 14 may be combined with various embodiments of the present disclosure.
[0229] Referring to FIG. 14, 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. 14 may be performed in the processor (102, 202) and / or the transceiver (106, 206) of FIG. 13. The hardware elements of FIG. 14 may be implemented in the processor (102, 202) and / or the transceiver (106, 206) of FIG. 13. For example, blocks 1010 to 1060 may be implemented in the processor (102, 202) of FIG. 13. Additionally, blocks 1010 to 1050 may be implemented in the processor (102, 202) of FIG. 13, and block 1060 may be implemented in the transceiver (106, 206) of FIG. 13.
[0230] The codeword can be converted into a wireless signal through the signal processing circuit (1000) of FIG. 14. 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).
[0231] 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.
[0232] 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.
[0233] 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. 14. For example, a wireless device (e.g., 100, 200 of FIG. 13) 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.
[0234] Figure 15 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 12). The embodiment of Figure 15 may be combined with various embodiments of the present disclosure.
[0235] Referring to FIG. 15, the wireless device (100, 200) corresponds to the wireless device (100, 200) of FIG. 13 and may be composed of various elements, components, 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 an additional element (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. 13. For example, the transceiver(s) (114) may include one or more transceivers (106, 206) and / or one or more antennas (108, 208) of FIG. 13. 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).
[0236] 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. 12, 100a), a vehicle (Fig. 12, 100b-1, 100b-2), an XR device (Fig. 12, 100c), a portable device (Fig. 12, 100d), a home appliance (Fig. 12, 100e), an IoT device (Fig. 12, 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. 12, 400), a base station (Fig. 12, 200), a network node, etc. Wireless devices may be mobile or stationary depending on the use / service.
[0237] In FIG. 15, various elements, components, units / parts, and / or modules within the wireless device (100, 200) may be entirely interconnected via a wired interface, or at least 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.
[0238] Below, the implementation example of Fig. 15 is described in more detail with reference to the drawings.
[0239] FIG. 16 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. 16 may be combined with various embodiments of the present disclosure.
[0240] Referring to FIG. 16, 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. 15, respectively.
[0241] 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.
[0242] 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).
[0243] FIG. 17 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. 17 may be combined with various embodiments of the present disclosure.
[0244] Referring to FIG. 17, 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. 15, respectively.
[0245] 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.
[0246] 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.
[0247] 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 a first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource; and A step of performing communication based on the above first setting; including, A method wherein the first setting is set for the first height area.
2. In paragraph 1, A method wherein the first setting is independently set with respect to a second height region, and the second setting includes at least one of information related to a second uplink resource, information related to a second downlink resource, or information related to a second flexible resource.
3. In paragraph 2, A method wherein the time domain set as the first downlink resource is a subset of the time domain set as the second downlink resource.
4. In paragraph 2, A method wherein the time domain set as the first uplink resource is a subset of the time domain set as the second uplink resource.
5. In paragraph 1, A method in which a time domain set as a first flexible resource for the first height domain is set as an uplink resource or a downlink resource based on a second setting set for the second height domain.
6. In paragraph 1, A method in which a time domain set as the first flexible resource for the first height domain is set as an uplink resource or a downlink resource based on a second setting set for the second height domain, based on the first height domain being lower than the second height domain.
7. In paragraph 1, A method wherein communication is performed based on a third setting based on a change in the position of the device between the first height region and the second height region.
8. In paragraph 7, A method according to claim 1, wherein the third configuration is obtained based on an intersection of (i) the first configuration for the first height region, which includes at least one of information related to the first uplink resource, information related to the first downlink resource, or information related to the first flexible resource, and (ii) the second configuration for the second height region, which includes at least one of information related to the second uplink resource, information related to the second downlink resource, or information related to the second flexible resource.
9. In paragraph 7, A method according to claim 1, wherein the third configuration is selected by the device from among (i) the first configuration for the first height region including at least one of information related to the first uplink resource, information related to the first downlink resource, or information related to the first flexible resource, and (ii) the second configuration for the second height region including at least one of information related to the second uplink resource, information related to the second downlink resource, or information related to the second flexible resource.
10. In paragraph 1, A method wherein, based on a change in the position of the device between the first height region and the second height region, transmission or reception on a resource scheduled or set in the first height region is omitted in the second height region.
11. In paragraph 1, A method wherein, based on a change in the position of the device between the first height region and the second height region, transmission or reception on a resource scheduled or set in the second height region is omitted in the first height region.
12. In paragraph 1, A method wherein the above first setting is TDD (time division duplex) UL (uplink)-DL (downlink) setting or slot format information.
13. In paragraph 1, A method wherein the first height region is lower than the second height region.
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: Acquire a first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource; and To perform communication based on the above first setting, The device, wherein the first setting is set for the first height area.
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: Acquire a first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource; and To perform communication based on the above first setting, A processing device, wherein the first setting is set for the first height region.
16. A non-transitory computer-readable storage medium that records commands, The above commands, when executed, cause the device to: Acquire a first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource; and To perform communication based on the above first setting, A non-transitory computer-readable storage medium, wherein the first setting is set for a first height area.
17. In the method, A step of transmitting a first setting to a device, the first setting including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource; and A step of transmitting a second setting to the device, the second setting including at least one of information related to a second uplink resource, information related to a second downlink resource, or information related to a second flexible resource; The above first setting is set for the first height area, and The above second setting is set for the second height area, the method.
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: Transmitting a first configuration to a device, the first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource; and Transmit to the device a second setting including at least one of information related to a second uplink resource, information related to a second downlink resource, or information related to a second flexible resource; The above first setting is set for the first height area, and The above second setting is set for the second height area, base station.
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: Transmitting a first configuration to a device, the first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource; and Transmit to the device a second setting including at least one of information related to a second uplink resource, information related to a second downlink resource, or information related to a second flexible resource; The above first setting is set for the first height area, and The second setting is a processing device set for the second height area.
20. A non-transitory computer-readable storage medium that records commands, The above commands, when executed, cause the base station to: Transmitting a first configuration to a device, the first configuration including at least one of information related to a first uplink resource, information related to a first downlink resource, or information related to a first flexible resource; and Transmit to the device a second setting including at least one of information related to a second uplink resource, information related to a second downlink resource, or information related to a second flexible resource; The above first setting is set for the first height area, and A non-transitory computer-readable storage medium, wherein the second setting is set for a second height area.
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