WO2022240089A1 - 무선 통신 시스템에서 통신을 수행하는 방법 및 장치 - Google Patents
무선 통신 시스템에서 통신을 수행하는 방법 및 장치 Download PDFInfo
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- WO2022240089A1 WO2022240089A1 PCT/KR2022/006557 KR2022006557W WO2022240089A1 WO 2022240089 A1 WO2022240089 A1 WO 2022240089A1 KR 2022006557 W KR2022006557 W KR 2022006557W WO 2022240089 A1 WO2022240089 A1 WO 2022240089A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- G06N20/00—Machine learning
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
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- G06N3/02—Neural networks
- G06N3/08—Learning methods
- G06N3/098—Distributed learning, e.g. federated learning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0078—Timing of allocation
- H04L5/0082—Timing of allocation at predetermined intervals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
- H04W72/231—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling
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- H—ELECTRICITY
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- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
- H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present disclosure relates to a wireless communication system, and more particularly, to a method and apparatus for performing communication in a wireless communication system.
- Mobile communication systems have been developed to provide voice services while ensuring user activity.
- the mobile communication system has expanded its scope to data services as well as voice.
- the explosive increase in traffic causes a shortage of resources and users demand higher-speed services, so a more advanced mobile communication system is required. have.
- next-generation mobile communication system The requirements of the next-generation mobile communication system are to support explosive data traffic, drastic increase in transmission rate per user, significantly increased number of connected devices, very low end-to-end latency, and high energy efficiency.
- Dual Connectivity Massive MIMO (Massive Multiple Input Multiple Output), In-band Full Duplex, Non-Orthogonal Multiple Access (NOMA), Super Wideband Wideband) support, various technologies such as device networking (Device Networking) are being studied.
- Massive MIMO Massive Multiple Input Multiple Output
- NOMA Non-Orthogonal Multiple Access
- Super Wideband Wideband various technologies such as device networking (Device Networking) are being studied.
- the technical problem of the present disclosure is to provide a method and apparatus for performing communication in a wireless communication system.
- an additional technical problem of the present disclosure is to provide a method and apparatus for controlling/managing communication in one or more specific TOs among a plurality of TOs.
- an additional technical problem of the present disclosure is to provide a method and apparatus for controlling/managing communication in one or more specific TOs among a plurality of TOs based on an artificial intelligence (AI) model.
- AI artificial intelligence
- a method for a terminal to perform communication in a wireless communication system includes receiving first information related to a plurality of TOs including a number of transmission occasions (TOs) from a base station; Receiving from the base station second information indicating whether to perform communication in one or more specific TOs among the plurality of TOs; and performing communication with the base station in at least one TO among the plurality of TOs based on the second information.
- TOs transmission occasions
- the method in a method for a base station to perform communication in a wireless communication system, includes: first information related to a plurality of TOs including the number of transmission occasions (TOs); transmitting to a terminal; Transmitting second information indicating whether to perform communication in one or more specific TOs among the plurality of TOs to the terminal; and performing communication with the base station in at least one TO among the plurality of TOs based on the second information.
- first information related to a plurality of TOs including the number of transmission occasions (TOs); transmitting to a terminal; Transmitting second information indicating whether to perform communication in one or more specific TOs among the plurality of TOs to the terminal; and performing communication with the base station in at least one TO among the plurality of TOs based on the second information.
- TOs transmission occasions
- the method includes: receiving information related to a plurality of transmission occasions (TO) from a base station; performing uplink transmission in at least one TO among the plurality of TOs based on the information; and stopping the uplink transmission after the specific TO among the plurality of TOs, based on whether information related to uplink transmission performed up to a specific TO among the plurality of TOs satisfies a specific condition.
- TO transmission occasions
- a method and apparatus for performing communication in a wireless communication system may be provided.
- a method and apparatus for controlling/managing communication in one or more specific TOs among a plurality of TOs may be provided.
- a method and apparatus for controlling/managing communication in one or more specific TOs among a plurality of TOs based on an AI model may be provided.
- FIG. 1 illustrates the structure of a wireless communication system to which the present disclosure may be applied.
- FIG. 2 illustrates a frame structure in a wireless communication system to which the present disclosure can be applied.
- FIG 3 illustrates a resource grid in a wireless communication system to which the present disclosure may be applied.
- FIG. 4 illustrates a physical resource block in a wireless communication system to which the present disclosure may be applied.
- FIG. 5 illustrates a slot structure in a wireless communication system to which the present disclosure may be applied.
- FIG. 6 illustrates physical channels used in a wireless communication system to which the present disclosure can be applied and a general signal transmission/reception method using them.
- FIG. 7 is a diagram illustrating downlink transmission and reception operations in a wireless communication system to which the present disclosure may be applied.
- FIG. 8 is a diagram illustrating an uplink transmission/reception operation in a wireless communication system to which the present disclosure may be applied.
- FIG. 11 illustrates a recurrent neural network
- FIG. 14 illustrates a functional framework for AI operations that can be applied to the present disclosure.
- FIG. 16 illustrates application of a functional framework in a wireless communication system that can be applied to the present disclosure.
- FIG. 17 illustrates application of a functional framework in a wireless communication system that can be applied to the present disclosure.
- FIG. 18 illustrates application of a functional framework in a wireless communication system that can be applied to the present disclosure.
- 19 is a diagram for explaining a communication method of a terminal according to an embodiment of the present disclosure.
- 20 is a diagram for explaining a method in which a base station performs communication according to an embodiment of the present disclosure.
- 21 is a diagram for explaining a method of performing uplink transmission by a terminal according to an embodiment of the present disclosure.
- 22 is a diagram for explaining a signaling procedure of a network side and a terminal according to an embodiment of the present disclosure.
- FIG. 23 illustrates a block configuration diagram of a wireless communication device according to an embodiment of the present disclosure.
- first and second are used only for the purpose of distinguishing one component from another component and are not used to limit the components, unless otherwise specified. The order or importance among them is not limited. Accordingly, within the scope of the present disclosure, a first component in one embodiment may be referred to as a second component in another embodiment, and similarly, a second component in one embodiment may be referred to as a first component in another embodiment. can also be called
- the present disclosure describes a wireless communication network or wireless communication system, and operations performed in the wireless communication network control the network and transmit or receive signals in a device (for example, a base station) in charge of the wireless communication network. It may be performed in the process of receiving, or in the process of transmitting or receiving signals from a terminal coupled to the corresponding wireless network to a network or between terminals.
- a device for example, a base station
- transmitting or receiving a channel includes the meaning of transmitting or receiving information or a signal through a corresponding channel.
- transmitting a control channel means transmitting control information or a signal through the control channel.
- transmitting a data channel means transmitting data information or a signal through the data channel.
- downlink means communication from a base station to a terminal
- uplink means communication from a terminal to a base station.
- a transmitter may be part of a base station and a receiver may be part of a terminal.
- a transmitter may be a part of a terminal and a receiver may be a part of a base station.
- a base station may be expressed as a first communication device
- a terminal may be expressed as a second communication device.
- a base station includes a fixed station, a Node B, an evolved-NodeB (eNB), a Next Generation NodeB (gNB), a base transceiver system (BTS), an access point (AP), and a network (5G Network), AI (Artificial Intelligence) system/module, RSU (road side unit), robot, drone (UAV: Unmanned Aerial Vehicle), AR (Augmented Reality) device, VR (Virtual Reality) device, etc.
- AI Artificial Intelligence
- RSU road side unit
- robot UAV: Unmanned Aerial Vehicle
- AR Algmented Reality
- VR Virtual Reality
- a terminal may be fixed or mobile, and a user equipment (UE), a mobile station (MS), a user terminal (UT), a mobile subscriber station (MSS), a subscriber station (SS), and an advanced mobile (AMS) Station), WT (Wireless terminal), MTC (Machine-Type Communication) device, M2M (Machine-to-Machine) device, D2D (Device-to-Device) device, vehicle, RSU (road side unit), It can be replaced with terms such as robot, AI (Artificial Intelligence) module, drone (UAV: Unmanned Aerial Vehicle), AR (Augmented Reality) device, VR (Virtual Reality) device, etc.
- AI Artificial Intelligence
- drone UAV: Unmanned Aerial Vehicle
- AR Algmented Reality
- VR Virtual Reality
- CDMA may be implemented with a radio technology such as Universal Terrestrial Radio Access (UTRA) or CDMA2000.
- TDMA may be implemented with a radio technology such as Global System for Mobile communications (GSM)/General Packet Radio Service (GPRS)/Enhanced Data Rates for GSM Evolution (EDGE).
- GSM Global System for Mobile communications
- GPRS General Packet Radio Service
- EDGE Enhanced Data Rates for GSM Evolution
- OFDMA may be implemented with radio technologies such as IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, and Evolved UTRA (E-UTRA).
- UTRA is part of the Universal Mobile Telecommunications System (UMTS).
- 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) is a part of Evolved UMTS (E-UMTS) using E-UTRA
- LTE-A (Advanced) / LTE-A pro is an evolved version of 3GPP LTE.
- 3GPP NR New Radio or New Radio Access Technology
- 3GPP LTE/LTE-A/LTE-A pro is an evolved version of 3GPP LTE/LTE-A/LTE-A pro.
- LTE refers to technology after 3GPP Technical Specification (TS) 36.xxx Release 8.
- TS Technical Specification
- LTE technology after 3GPP TS 36.xxx Release 10 is referred to as LTE-A
- LTE technology after 3GPP TS 36.xxx Release 13 is referred to as LTE-A pro
- 3GPP NR refers to technology after TS 38.xxx Release 15.
- LTE/NR may be referred to as a 3GPP system.
- "xxx" means standard document detail number.
- LTE/NR may be collectively referred to as a 3GPP system.
- TS 36.211 Physical Channels and Modulation
- TS 36.212 Multiplexing and Channel Coding
- TS 36.213 Physical Layer Procedures
- TS 36.300 General Description
- TS 36.331 Radio Resource Control
- TS 38.211 Physical Channels and Modulation
- TS 38.212 Multiplexing and Channel Coding
- TS 38.213 Physical Layer Procedures for Control
- TS 38.214 Physical Layer Procedures for Data
- TS 38.300 General description of NR and New Generation-Radio Access Network (NG-RAN)
- TS 38.331 Radio Resource Control Protocol Specification
- channel state information - reference signal resource indicator channel state information - reference signal resource indicator
- channel state information - reference signal channel state information - reference signal
- Layer 1 reference signal received quality Layer 1 reference signal received quality
- orthogonal frequency division multiplexing orthogonal frequency division multiplexing (orthogonal frequency division multiplexing)
- radio resource control radio resource control
- Synchronization signal block including primary synchronization signal (PSS), secondary synchronization signal (SSS) and physical broadcast channel (PBCH)
- NR is an expression showing an example of 5G RAT.
- a new RAT system including NR uses an OFDM transmission scheme or a transmission scheme similar thereto.
- the new RAT system may follow OFDM parameters different from those of LTE.
- the new RAT system follows the numerology of the existing LTE/LTE-A as it is, but may support a larger system bandwidth (eg, 100 MHz).
- one cell may support a plurality of numerologies. That is, terminals operating with different numerologies can coexist in one cell.
- a numerology corresponds to one subcarrier spacing in the frequency domain.
- Different numerologies can be defined by scaling the reference subcarrier spacing by an integer N.
- FIG. 1 illustrates the structure of a wireless communication system to which the present disclosure may be applied.
- the NG-RAN is an NG-RA (NG-Radio Access) user plane (ie, a new AS (access stratum) sublayer / PDCP (packet data convergence protocol) / RLC (radio link control) / MAC / PHY) and control plane (RRC) protocol termination to the UE.
- the gNBs are interconnected through an Xn interface.
- the gNB is also connected to a New Generation Core (NGC) through an NG interface. More specifically, the gNB is connected to an Access and Mobility Management Function (AMF) through an N2 interface and to a User Plane Function (UPF) through an N3 interface.
- AMF Access and Mobility Management Function
- UPF User Plane Function
- FIG. 2 illustrates a frame structure in a wireless communication system to which the present disclosure can be applied.
- An NR system can support multiple numerologies.
- numerology may be defined by subcarrier spacing and cyclic prefix (CP) overhead.
- the multiple subcarrier spacing can be derived by scaling the basic (reference) subcarrier spacing by an integer N (or ⁇ ).
- N or ⁇
- the numerology used can be selected independently of the frequency band.
- various frame structures according to a plurality of numerologies may be supported.
- OFDM numerology and frame structure that can be considered in the NR system will be described.
- Multiple OFDM numerologies supported in the NR system can be defined as shown in Table 1 below.
- NR supports multiple numerologies (or subcarrier spacing, SCS) to support various 5G services. For example, when SCS is 15 kHz, a wide area in traditional cellular bands support, dense-urban, lower latency and wider carrier bandwidth when SCS is 30kHz/60kHz, and phase when SCS is 60kHz or higher To overcome phase noise, it supports a bandwidth greater than 24.25 GHz.
- the NR frequency band is defined as two types (FR1, FR2) of frequency range.
- FR1 and FR2 are as follows It may be configured as shown in Table 2. Also, FR2 may mean millimeter wave (mmW).
- T TA (N TA +N TA,offset )T c before the start of the corresponding downlink frame in the corresponding terminal.
- slots are numbered in increasing order of n s ⁇ ⁇ 0,..., N slot subframe, ⁇ -1 ⁇ within a subframe, and within a radio frame They are numbered in increasing order n s,f ⁇ ⁇ 0,..., N slot frame, ⁇ -1 ⁇ .
- One slot is composed of consecutive OFDM symbols of N symb slots , and N symb slots are determined according to CP.
- the start of slot n s ⁇ in a subframe is temporally aligned with the start of OFDM symbol n s ⁇ N symb slot in the same subframe. Not all terminals can simultaneously transmit and receive, which means that not all OFDM symbols in a downlink slot or uplink slot can be used.
- Table 3 shows the number of OFDM symbols per slot (N symb slot ), the number of slots per radio frame (N slot frame, ⁇ ), and the number of slots per subframe (N slot subframe, ⁇ ) in the general CP.
- Table 4 represents the number of OFDM symbols per slot, the number of slots per radio frame, and the number of slots per subframe in the extended CP.
- one subframe may include 4 slots.
- a mini-slot may include 2, 4, or 7 symbols, more or less symbols.
- an antenna port antenna port
- resource grid resource element
- resource block carrier part, etc.
- the physical resources that can be considered in the NR system will be described in detail.
- the antenna port is defined such that the channel on which a symbol on the antenna port is carried can be inferred from the channel on which other symbols on the same antenna port are carried. If the large-scale properties of the channel on which the symbols on one antenna port are carried can be inferred from the channel on which the symbols on the other antenna port are carried, then the two antenna ports are quasi co-located or QC/QCL (quasi co-located or quasi co-location).
- the wide range characteristic includes one or more of delay spread, Doppler spread, frequency shift, average received power, and received timing.
- 3 illustrates a resource grid in a wireless communication system to which the present disclosure can be applied. Referring to FIG.
- a resource grid is composed of N RB ⁇ N sc RB subcarriers in the frequency domain, and one subframe is composed of 14 2 ⁇ OFDM symbols.
- a transmitted signal is described by one or more resource grids consisting of N RB ⁇ N sc RB subcarriers and 2 ⁇ N symb ( ⁇ ) OFDM symbols.
- N RB ⁇ ⁇ N RB max, ⁇ The N RB max, ⁇ represents the maximum transmission bandwidth, which may vary not only between numerologies but also between uplink and downlink.
- one resource grid may be set for each ⁇ and antenna port p.
- Each element of the resource grid for ⁇ and antenna port p is referred to as a resource element and is uniquely identified by an index pair (k, l').
- l' 0,...,2 ⁇ N symb ( ⁇ ) -1 is a symbol in a subframe indicates the location of
- an index pair (k, l) is used.
- l 0,...,N symb ⁇ -1.
- the resource element (k,l') for ⁇ and antenna port p corresponds to a complex value a k,l' (p, ⁇ ) .
- indices p and ⁇ can be dropped, resulting in a complex value of a k,l' (p) or can be a k,l' .
- Point A serves as a common reference point of the resource block grid and It is obtained as follows: - OffsetToPointA for Primary Cell (PCell) downlink is the lowest subcarrier of the lowest resource block overlapping the SS/PBCH block used by the UE for initial cell selection and point A represents the frequency offset between It is expressed in resource block units assuming 15 kHz subcarrier spacing for FR1 and 60 kHz subcarrier spacing for FR2. - absoluteFrequencyPointA is the frequency of point A expressed as in ARFCN (absolute radio-frequency channel number) -Indicates a position. Common resource blocks are numbered upward from 0 in the frequency domain for the subcarrier spacing setting ⁇ .
- Physical resource blocks are numbered from 0 to N BWP,i size, ⁇ -1 within a bandwidth part (BWP), where i is the number of BWP.
- BWP bandwidth part
- Equation 2 The relationship between the physical resource block n PRB and the common resource block n CRB in BWP i is given by Equation 2 below.
- N BWP,i start, ⁇ is a common resource block where BWP starts relative to common resource block 0.
- Figure 4 illustrates a physical resource block in a wireless communication system to which the present disclosure may be applied.
- Figure 5 illustrates a slot structure in a wireless communication system to which the present disclosure can be applied.
- a slot includes a plurality of symbols in the time domain. For example, in the case of a normal CP, one slot includes 7 symbols, but in the case of an extended CP, one slot includes 6 symbols.
- a carrier includes a plurality of subcarriers in the frequency domain.
- a resource block (RB) is defined as a plurality of (eg, 12) consecutive subcarriers in the frequency domain.
- a bandwidth part (BWP) is defined as a plurality of contiguous (physical) resource blocks in the frequency domain, and may correspond to one numerology (eg, SCS, CP length, etc.).
- a carrier may include up to N (eg, 5) BWPs. Data communication is performed through an activated BWP, and only one BWP can be activated for one terminal.
- Each element in the resource grid is referred to as a resource element (RE), and one complex symbol may be mapped.
- RE resource element
- the NR system can support up to 400 MHz per component carrier (CC). If a terminal operating in such a wideband CC always operates with radio frequency (RF) chips for the entire CC turned on, battery consumption of the terminal may increase.
- a terminal operating in such a wideband CC always operates with radio frequency (RF) chips for the entire CC turned on, battery consumption of the terminal may increase.
- RF radio frequency
- different numerologies eg subcarrier spacing, etc.
- the capability for the maximum bandwidth may be different for each terminal.
- the base station may instruct the terminal to operate only in a part of the bandwidth of the wideband CC rather than in the entire bandwidth, and the part of the bandwidth is defined as a bandwidth part (BWP) for convenience.
- BWP may be composed of consecutive RBs on the frequency axis and may correspond to one numerology (eg, subcarrier spacing, CP length, slot/mini-slot period).
- the base station may set multiple BWPs even within one CC configured for the terminal. For example, in a PDCCH monitoring slot, a BWP occupying a relatively small frequency domain may be configured, and a PDSCH indicated by the PDCCH may be scheduled on a larger BWP. Alternatively, when UEs are concentrated in a specific BWP, some UEs may be set to other BWPs for load balancing. Alternatively, considering frequency domain inter-cell interference cancellation between neighboring cells, a part of the spectrum from the entire bandwidth may be excluded and both BWPs may be set even within the same slot. That is, the base station may configure at least one DL/UL BWP for a terminal associated with a wideband CC.
- the base station may activate at least one DL/UL BWP among the configured DL/UL BWP(s) at a specific time (by L1 signaling or MAC Control Element (CE) or RRC signaling).
- the base station may indicate switching to another configured DL / UL BWP (by L1 signaling or MAC CE or RRC signaling).
- a timer value expires based on a timer, it may be switched to a predetermined DL/UL BWP.
- the activated DL/UL BWP is defined as an active DL/UL BWP.
- the terminal In situations such as when the terminal is performing an initial access process or before an RRC connection is set up, it may not be possible to receive the configuration for DL / UL BWP, so in this situation, the terminal This assumed DL/UL BWP is defined as the first active DL/UL BWP.
- FIG. 6 illustrates physical channels used in a wireless communication system to which the present disclosure can be applied and a general signal transmission/reception method using them.
- a terminal receives information from a base station through downlink, and the terminal transmits information to the base station through uplink.
- Information transmitted and received between the base station and the terminal includes data and various control information, and various physical channels exist according to the type/use of the information transmitted and received by the base station and the terminal.
- the terminal When the terminal is turned on or newly enters a cell, the terminal performs an initial cell search operation such as synchronizing with the base station (S601). To this end, the terminal receives a primary synchronization signal (PSS) and a secondary synchronization signal (PSS) from the base station to synchronize with the base station and obtain information such as a cell identifier (identifier, ID). can After that, the terminal can acquire intra-cell broadcast information by receiving a physical broadcast channel (PBCH) from the base station. Meanwhile, the terminal may check the downlink channel state by receiving a downlink reference signal (DL RS) in the initial cell search step.
- PSS primary synchronization signal
- PSS secondary synchronization signal
- PBCH physical broadcast channel
- DL RS downlink reference signal
- the UE After completing the initial cell search, the UE obtains more detailed system information by receiving a physical downlink control channel (PDCCH) and a physical downlink control channel (PDSCH) according to information carried on the PDCCH. It can (S602).
- a physical downlink control channel (PDCCH)
- a physical downlink control channel (PDSCH)
- S602 the UE obtains more detailed system information by receiving a physical downlink control channel (PDCCH) and a physical downlink control channel (PDSCH) according to information carried on the PDCCH. It can (S602).
- PDCCH physical downlink control channel
- PDSCH physical downlink control channel
- the terminal may perform a random access procedure (RACH) to the base station (steps S603 to S606).
- RACH random access procedure
- the UE may transmit a specific sequence as a preamble through a physical random access channel (PRACH) (S603 and S605), and receive a response message to the preamble through a PDCCH and a corresponding PDSCH ( S604 and S606).
- PRACH physical random access channel
- a contention resolution procedure may be additionally performed.
- the UE receives PDCCH/PDSCH as a general uplink/downlink signal transmission procedure (S607) and physical uplink shared channel (PUSCH)/physical uplink control channel (S607).
- Control channel, PUCCH) transmission (S608) may be performed.
- the terminal receives downlink control information (DCI) through the PDCCH.
- DCI downlink control information
- the DCI includes control information such as resource allocation information for a terminal, and has different formats depending on its purpose of use.
- the control information that the terminal transmits to the base station through the uplink or the terminal receives from the base station is a downlink / uplink ACK / NACK (Acknowledgement / Non-Acknowledgement) signal, CQI (Channel Quality Indicator), PMI (Precoding Matrix) Indicator), RI (Rank Indicator), etc.
- a terminal may transmit control information such as the above-described CQI/PMI/RI through PUSCH and/or PUCCH.
- Table 5 shows an example of a DCI format in the NR system.
- DCI format uses 0_0 Scheduling of PUSCH in one cell 0_1 Scheduling of one or multiple PUSCHs in one cell, or indication of cell group (CG) downlink feedback information to the UE 0_2 Scheduling of PUSCH in one cell 1_0 Scheduling of PDSCH in one DL cell 1_1 Scheduling of PDSCH in one cell 1_2 Scheduling of PDSCH in one cell
- DCI formats 0_0, 0_1, and 0_2 are resource information related to PUSCH scheduling (eg, UL/SUL (Supplementary UL), frequency resource allocation, time resource allocation, frequency hopping, etc.), transport block ( transport block, TB) related information (eg, MCS (Modulation Coding and Scheme), NDI (New Data Indicator), RV (Redundancy Version), etc.), HARQ (Hybrid - Automatic Repeat and request) related information (eg , process number, downlink assignment index (DAI), PDSCH-HARQ feedback timing, etc.), multi-antenna related information (eg, DMRS sequence initialization information, antenna port, CSI request, etc.), power control information (eg, PUSCH power control, etc.), and control information included in each DCI format may be predefined.
- PUSCH scheduling eg, UL/SUL (Supplementary UL), frequency resource allocation, time resource allocation, frequency hopping, etc.
- transport block transport block
- DCI format 0_0 is used for PUSCH scheduling in one cell.
- the information included in the DCI format 0_0 is CRC (cyclic redundancy check) by C-RNTI (cell radio network temporary identifier, Cell RNTI) or CS-RNTI (Configured Scheduling RNTI) or MCS-C-RNTI (Modulation Coding Scheme Cell RNTI) ) is scrambled and transmitted.
- DCI format 0_1 is used to instruct the UE to schedule one or more PUSCHs in one cell or configured grant (configure grant, CG) downlink feedback information.
- DCI format 0_1 Information included in DCI format 0_1 is transmitted after being CRC scrambled by C-RNTI, CS-RNTI, SP-CSI-RNTI (Semi-Persistent CSI RNTI) or MCS-C-RNTI.
- DCI format 0_2 is used for PUSCH scheduling in one cell.
- Information included in DCI format 0_2 is transmitted after being CRC scrambled by C-RNTI, CS-RNTI, SP-CSI-RNTI or MCS-C-RNTI.
- DCI formats 1_0, 1_1, and 1_2 are resource information related to PDSCH scheduling (eg, frequency resource allocation, time resource allocation, VRB (virtual resource block)-PRB (physical resource block) mapping, etc.), transport block (TB) related information (eg, MCS, NDI, RV, etc.), HARQ related information (eg, process number, DAI, PDSCH-HARQ feedback timing, etc.), multi-antenna related information (eg, antenna port , transmission configuration indicator (TCI), sounding reference signal (SRS) request, etc.), PUCCH-related information (eg, PUCCH power control, PUCCH resource indicator, etc.), and the control information included in each DCI format It may be predefined.
- DCI format 1_0 is used for PDSCH scheduling in one DL cell.
- Information included in DCI format 1_0 is transmitted after being CRC scrambled by C-RNTI, CS-RNTI or MCS-C-RNTI.
- DCI format 1_1 is used for PDSCH scheduling in one cell.
- Information included in DCI format 1_1 is transmitted after being CRC scrambled by C-RNTI, CS-RNTI or MCS-C-RNTI.
- DCI format 1_2 is used for PDSCH scheduling in one cell.
- Information included in DCI format 1_2 is transmitted after being CRC scrambled by C-RNTI, CS-RNTI or MCS-C-RNTI.
- FIG. 7 is a diagram illustrating downlink transmission and reception operations in a wireless communication system to which the present disclosure may be applied.
- the base station schedules downlink transmission such as frequency/time resources, transport layers, downlink precoders, and MCS (S1410).
- the base station may determine a beam for PDSCH transmission to the terminal through the above-described operations.
- the terminal receives DCI for downlink scheduling (ie, including PDSCH scheduling information) on the PDCCH from the base station (S1420).
- DCI for downlink scheduling ie, including PDSCH scheduling information
- DCI format 1_0, 1_1 or 1_2 may be used for downlink scheduling, and in particular, DCI format 1_1 includes the following information: DCI format identifier (Identifier for DCI formats), bandwidth part indicator, Frequency domain resource assignment, time domain resource assignment, PRB bundling size indicator, rate matching indicator, ZP CSI-RS trigger (ZP CSI -RS trigger), antenna port(s), transmission configuration indication (TCI), SRS request, demodulation reference signal (DMRS) sequence initialization (DMRS sequence initialization)
- the number of DMRS ports can be scheduled, and SU (Single-user) / MU (Multi-user) transmission scheduling is possible.
- the TCI field is composed of 3 bits, and the QCL for the DMRS is dynamically indicated by indicating up to 8 TCI states according to the TCI field value.
- the terminal receives downlink data from the base station on the PDSCH (S1430).
- the PDSCH is decoded according to an instruction by the corresponding DCI.
- the UE may set the DMRS configuration type by the upper layer parameter 'dmrs-Type', and the DMRS type is used to receive the PDSCH.
- the maximum number of front-loaded DMRA symbols for the PDSCH may be set by the upper layer parameter 'maxLength'.
- DMRS configuration type 1 if a single codeword is scheduled for a UE and an antenna port mapped with an index of ⁇ 2, 9, 10, 11, or 30 ⁇ is designated, or a single codeword is scheduled and ⁇ 2, If an antenna port mapped with an index of 9, 10, 11, or 12 ⁇ or ⁇ 2, 9, 10, 11, 30, or 31 ⁇ is specified, or if two codewords are scheduled for a UE, the UE selects all remaining orthogonal It is assumed that one antenna port is not associated with PDSCH transmission to another terminal.
- DMRS configuration type 2 if a single codeword is scheduled for the UE and an antenna port mapped with an index of ⁇ 2, 10, or 23 ⁇ is designated, or a single codeword is scheduled and ⁇ 2, 10, If an antenna port mapped with an index of 23 or 24 ⁇ or ⁇ 2, 10, 23, or 58 ⁇ is specified, or if two codewords are scheduled for a UE, the UE transmits all remaining orthogonal antenna ports to another UE. It is assumed that it is not associated with PDSCH transmission of
- the precoding granularity P' is a contiguous resource block in the frequency domain.
- P' may correspond to one of ⁇ 2, 4, broadband ⁇ .
- P' is determined as wideband, the UE does not expect to be scheduled with non-contiguous PRBs, and the UE can assume that the same precoding is applied to the allocated resource.
- the Precoding Resource Block Group (PRG) is divided into P' consecutive PRBs.
- the number of actually consecutive PRBs in each PRG may be one or more.
- the UE may assume that the same precoding is applied to consecutive downlink PRBs in the PRG.
- the UE In order for the UE to determine the modulation order, target code rate, and transport block size in the PDSCH, the UE first reads the 5-bit MCD field in the DCI, and modulates the modulation order and target code determine the rate. Then, the redundancy version field in the DCI is read, and the redundancy version is determined. And, the UE determines the transport block size using the number of layers and the total number of allocated PRBs before rate matching.
- Downlink SPS combines continuous scheduling through higher layer signaling (RRC, etc.) and dynamic scheduling of lower layer signaling (DCI, etc.). Continuous scheduling is used for periodic resource allocation for the first transmission of a transport block (TB). Dynamic scheduling is used to allocate resources for retransmission when retransmission is required.
- RRC higher layer signaling
- DCI lower layer signaling
- continuous scheduling through higher layer signaling may be transmitted before dynamic scheduling (S1420) of lower layer signaling (DCI, etc.).
- the UE may report SPS support to the eNB using the downlinkSPS flag in the UE capability information.
- RRC signaling and physical layer signaling on PDCCH are combined and used.
- RRC signaling eg, SPS-Config IE
- SPS-Config IE provides a subset of resource allocation information, and additional information is provided by PDCCH.
- PDCCH uses activation/release as a trigger.
- SPS-Config IE is used to configure downlink semi-persistent transmission. Multiple downlink SPS configurations within one BWP of the serving cell may be configured.
- SPS-Config :: SEQUENCE ⁇ periodicity ENUMERATED ⁇ ms10, ms20, ms32, ms40, ms64, ms80, ms128, ms160, ms320, ms640, spare6, spare5, spare4, spare3, spare2, spare1 ⁇ , nrofHARQ-Processes INTEGER (1..8), n1PUCCH-AN PUCCH-ResourceId OPTIONAL, -- Need M mcs-Table ENUMERATED ⁇ qam64LowSE ⁇ OPTIONAL, -- Need S ..., [[ sps-ConfigIndex-r16 SPS-ConfigIndex-r16 OPTIONAL, -- Cond SPS-List harq-ProcID-Offset-r16 INTEGER (0..15) OPTIONAL, -- Need R periodicityExt-r16 INTEGER (1..5120) OPTIONAL, -- Need R harq-CodebookID-r16 INTEGER (1
- periodicity represents a period of a downlink SPS, which means a time interval between successive persistent resource allocations.
- periodicityExt is used to calculate the period of downlink SPS, and if this parameter does not exist, periodicity is ignored.
- the SPS period has different supported values depending on the set subcarrier spacing.
- nrofHARQ-Processes indicates the number of HARQ processes configured for downlink SPS.
- the HARQ process identifier is specified within the DCI associated with each resource allocation.
- the identifier of the HARQ process is determined based on the nrofHARQ-Processes value and the periodicity value.
- n1PUCCH-AN indicates HARQ resources of PUCCH for downlink SPS.
- An actual PUCCH-Resource is set according to the value of n1PUCCH-AN, and based on this, PUCCH resources for transmitting HARQ ACK to the base station are identified.
- mcs-Table indicates an MCS table used by the UE for downlink SPS.
- the pdsch-AggregationFactor indicates the number of repetitions of the SPS PDSCH and may have one value among ⁇ 1,2,4,8 ⁇ . If this field does not exist, the UE applies pdsch-AggregationFactor of PDSCH-Config. That is, the terminal repeatedly receives the same downlink data/transport block (TB) in consecutive slots.
- the same symbol allocation is applied over consecutive slots according to the set repetition number (pdsch-AggregationFactor). That is, the terminal repeatedly receives the downlink TB in the same symbol over several consecutive slots according to the set number of repetitions.
- the PDSCH is limited to a single transmission layer.
- a time interval for reception according to the number of repetitions is not larger than a period interval derived by a period obtained from SPS-config.
- a redundancy version (rv_id) is determined differently for each TO of a TB.
- rv_id the redundancy version indicated by DCI is 0.
- the UE When a UE configured as an upper layer SPS receives DCI on a PDCCH, the UE first validates whether the downlink SPS assignment PDCCH is valid.
- NDI new data indicator
- the UE determines that the downlink SPS assignment PDCCH is valid for scheduling activation/scheduling release.
- the terminal verifies whether the DCI format is valid as follows.
- Table 7 exemplifies a field for verifying single downlink SPS scheduling activation when a single SPS PDSCH configuration is provided in a downlink BWP of a cell in which a UE is scheduled.
- DCI format 1_1 HARQ process number set to all '0's Redundancy version
- Table 8 exemplifies fields for single downlink SPS descheduling verification when the terminal is provided with a single SPS PDSCH configuration within the downlink BWP of a scheduled cell.
- the HARQ process number field in the DCI format indicates activation of the SPS PDSCH configuration with the same value as the index (i.e., sps-ConfigIndex) of a specific configuration among one or more SPS PDSCH configurations.
- the redundancy version (RV) field of the DCI format is set as shown in Table 7 above, verification of the DCI format for SPS PDSCH activation is achieved.
- the HARQ process number field in the DCI format indicates SPS PDSCH release with the same value as the index (ie, sps-ConfigDeactivationStateList or sps-ConfigIndex) of a specific configuration among one or more SPS PDSCH configurations.
- the index ie, sps-ConfigDeactivationStateList or sps-ConfigIndex
- MCS modulation and coding scheme
- FDRA frequency domain resource assignment
- the UE may be configured to repeatedly receive the PDSCH. In this case, the UE repeatedly receives the same downlink data/transport block (TB) in consecutive slots.
- TB downlink data/transport block
- the number of repetitions for downlink TB may have one of ⁇ 2, 4, 8 ⁇ . That is, the same TB can be transmitted in consecutive 2 slots, 4 slots, or 8 slots. There is one TB transmission (ie, one transmission occasion (TO)) in each slot. If the number of repetitions is not set (that is, there is no pdsch-AggregationFactor), the UE applies a value of 1.
- the UE When the UE receives a PDSCH scheduled by DCI, if the UE is set to repetition number > 1 (eg, pdsch-AggregationFactor > 1), the same symbol allocation is applied over consecutive slots according to the set repetition number. . That is, the terminal repeatedly receives the downlink TB in the same symbol over several consecutive slots according to the set number of repetitions.
- repetition number > 1 eg, pdsch-AggregationFactor > 1
- the same symbol allocation is applied over consecutive slots according to the set repetition number. . That is, the terminal repeatedly receives the downlink TB in the same symbol over several consecutive slots according to the set number of repetitions.
- the PDSCH is limited to a single transmission layer.
- a redundancy version (rv_id) is determined differently for each TO of a TB. That is, based on the redundancy version indicated by the DCI scheduling the PDSCH, the redundancy version applied to the n-th TO is determined according to Table 9 below.
- Table 9 illustrates the redundancy version applied when pdsch-AggregationFactor is present.
- FIG. 8 is a diagram illustrating an uplink transmission/reception operation in a wireless communication system to which the present disclosure may be applied.
- the base station schedules uplink transmission such as frequency/time resources, transport layer, uplink precoder, and MCS (S1510).
- the base station may determine a beam for the UE to transmit the PUSCH through the above-described operations.
- the terminal receives DCI for uplink scheduling (ie, including PUSCH scheduling information) from the base station on the PDCCH (S1520).
- DCI for uplink scheduling ie, including PUSCH scheduling information
- DCI format 0_0, 0_1 or 0_2 may be used for uplink scheduling, and in particular, DCI format 0_1 includes the following information: DCI format identifier (Identifier for DCI formats), UL/SUL (Supplementary uplink) indicator ( UL / SUL indicator), bandwidth part indicator, frequency domain resource assignment, time domain resource assignment, frequency hopping flag, modulation and coding scheme (MCS: Modulation and coding scheme), SRS resource indicator (SRI), precoding information and number of layers, antenna port(s), SRS request (SRS request), DMRS sequence initialization, UL-SCH (Uplink Shared Channel) indicator (UL-SCH indicator)
- SRS resources set in the SRS resource set associated with the higher layer parameter 'usage' may be indicated by the SRS resource indicator field.
- 'spatialRelationInfo' can be set for each SRS resource, and its value can be one of ⁇ CRI, SSB, SRI ⁇ .
- the terminal transmits uplink data to the base station on the PUSCH (S1530).
- the corresponding PUSCH is transmitted according to an instruction by the corresponding DCI.
- codebook-based transmission For PUSCH transmission, two transmission schemes are supported: codebook-based transmission and non-codebook-based transmission:
- the terminal When the upper layer parameter 'txConfig' is set to 'codebook', the terminal is configured for codebook-based transmission. On the other hand, when the upper layer parameter 'txConfig' is set to 'nonCodebook', the terminal is configured for non-codebook based transmission. If the upper layer parameter 'txConfig' is not set, the terminal does not expect to be scheduled by DCI format 0_1. When PUSCH is scheduled by DCI format 0_0, PUSCH transmission is based on a single antenna port.
- PUSCH may be scheduled in DCI format 0_0, DCI format 0_1, DCI format 0_2, or semi-statically. If this PUSCH is scheduled by DCI format 0_1, the UE transmits the PUSCH based on SRI, TPMI (Transmit Precoding Matrix Indicator) and transmission rank from DCI, as given by the SRS resource indicator field and Precoding information and number of layers field Determine the precoder.
- TPMI Transmit Precoding Matrix Indicator
- TPMI Transmit Precoding Matrix Indicator
- transmission rank from DCI, as given by the SRS resource indicator field and Precoding information and number of layers field Determine the precoder.
- TPMI is used to indicate a precoder to be applied across antenna ports, and corresponds to an SRS resource selected by SRI when multiple SRS resources are configured.
- TPMI is used to indicate a precoder to be applied across antenna ports and corresponds to the single SRS resource.
- a transmission precoder is selected from an uplink codebook having the same number of antenna ports as the upper layer parameter 'nrofSRS-Ports'.
- the terminal is configured with at least one SRS resource.
- the SRI indicated in slot n is associated with the most recent transmission of the SRS resource identified by the SRI, where the SRS resource precedes the PDCCH carrying the SRI (i.e., slot n).
- PUSCH may be scheduled in DCI format 0_0, DCI format 0_1 or semi-statically.
- the UE can determine the PUSCH precoder and transmission rank based on the wideband SRI, where the SRI is given by the SRS resource indicator in the DCI or by the higher layer parameter 'srs-ResourceIndicator' given
- the UE uses one or multiple SRS resources for SRS transmission, where the number of SRS resources may be configured for simultaneous transmission within the same RB based on UE capability. Only one SRS port is configured for each SRS resource. Only one SRS resource can be set with the upper layer parameter 'usage' set to 'nonCodebook'.
- the maximum number of SRS resources that can be configured for non-codebook based uplink transmission is 4.
- the SRI indicated in slot n is associated with the most recent transmission of the SRS resource identified by the SRI, where the SRS transmission precedes the PDCCH carrying the SRI (i.e., slot n).
- the PUSCH configured grant is divided into configured grant (CG) Type 1 and CG Type 2.
- CG Type 1 resource allocation is completely set or released using RRC signaling.
- the UE When CG Type 1 is set, the UE is allocated a resource set capable of periodically transmitting PUSCH. PDCCH is required only when retransmission is required.
- CG Type 1 PUSCH transmission is semi-statically set to operate when receiving the upper layer parameter configuredGrantConfig including rrc-ConfiguredUplinkGrant without detecting a UL grant in DCI.
- the UE may perform PUSCH transmission according to the configured CG Type 1 until additional RRC signaling is reset to the UE.
- CG Type 2 resource allocation is partially configured using RRC signaling, and activation/release is instructed using PDCCH transmission. Since the PDCCH also provides time and frequency resource allocation, resource allocation may be different each time it is activated.
- CG Type 2 PUSCH transmission is semi-persistently scheduled by a UL grant in a valid activation DCI after receiving the upper layer parameter configuredGrantConfig that does not include rrc-ConfiguredUplinkGrant.
- higher layer signaling (RRC, etc.) for a PUSCH configured grant may be transmitted before lower layer signaling (DCI, etc.) for uplink scheduling.
- One or more CG configurations of CG Type 1 and/or CG Type 2 may be simultaneously activated on the activated BWP of the serving cell.
- parameters for PUSCH transmission may be provided by configuredGrantConfig.
- configuredGrantConfig IE is used to configure uplink transmission without dynamic grant by DCI.
- the actual uplink grant may be set by RRC (CG Type 1) or provided through PDCCH (by CS-RNTI) (CG Type 2).
- Multiple CG configurations can be configured within one BWP of the serving cell.
- ConfiguredGrantConfig SEQUENCE ⁇ frequencyHopping ENUMERATED ⁇ intraSlot, interSlot ⁇ OPTIONAL, -- Need S cg-DMRS-Configuration DMRS-UplinkConfig, mcs-Table ENUMERATED ⁇ qam256, qam64LowSE ⁇ OPTIONAL, -- Need S mcs-TableTransformPrecoder ENUMERATED ⁇ qam256, qam64LowSE ⁇ OPTIONAL, -- Need S uci-OnPUSCH SetupRelease ⁇ CG-UCI-OnPUSCH ⁇ OPTIONAL, -- Need M resourceAllocation ENUMERATED ⁇ resourceAllocationType0, resourceAllocationType1, dynamicSwitch ⁇ , rbg-Size ENUMERATED ⁇ config2 ⁇ OPTIONAL, -- Need S powerControlLoopToUse ENUMERATED ⁇ n0, n1 ⁇ , p0-PUSCH-Alpha P0-PUSCH-AlphaSetId; transformPrecoder EN
- periodicity represents a period for uplink CG transmission, which means a time interval between consecutive continuous resource allocations.
- periodicityExt is used to calculate the period of uplink CG, and if this parameter does not exist, periodicity is ignored.
- the uplink CG period has different values supported according to the set subcarrier spacing.
- nrofHARQ-Processes indicates the number of HARQ processes configured for uplink CG.
- the HARQ process identifier is specified within the DCI associated with each resource allocation.
- the identifier of the HARQ process is determined based on the nrofHARQ-Processes value and the periodicity value.
- repK represents the number of repetitions. That is, it indicates the repetition level for each PUSCH transmission.
- repK can have one of ⁇ 1,2,4,8 ⁇ .
- PUSCH repetition type B is applied, otherwise PUSCH repetition type A is applied.
- the PUSCH repetition type is determined by the UL grant of DCI. According to the set PUSCH repetition type A or B, the terminal repeatedly transmits the uplink TB by the set number of repetitions.
- repK-RV represents a redundancy version sequence.
- repK-RV is set when repetition is used (i.e. when repK is set to one of ⁇ 2,4,8 ⁇ ).
- resourceAllocation indicates setting of bitmap-based resource allocation type 0 or resource indication value (RIV)-based resource allocation type 1.
- mcs-Table indicates an MCS table used by the UE for a PUSCH in which transform precoding is not used
- mcs-TableTransformPrecoder indicates an MCS table used by the UE for a PUSCH in which transform precoding is used. point to the table transformPrecoder indicates whether to enable for PUSCH of transform precoding.
- rrc-ConfiguredUplinkGrant is a setting for CG Type 1 transmission. If this field does not exist, the UE uses the UL grant configured by DCI by CS-RNTI (ie, CG Type 2).
- timeDomainAllocation indicates the start symbol and length of PUSCH and the PUSCH mapping type.
- timeDomainOffset represents an offset related to a reference system frame number (SFN) indicated by timeReferenceSFN.
- timeReferenceSFN indicates an SFN used to determine the offset of a resource in the time domain. The terminal uses the SFN closest to the number indicated before receiving the configured grant setting, and if this field does not exist, the reference SFN is 0.
- the terminal When a terminal configured with a configured grant as a higher layer receives DCI on a PDCCH, the terminal first validates whether the configured UL grant Type 2 PDDCH is valid.
- NDI new data indicator
- the UE determines that the configured UL grant Type 2 PDDCH is valid for scheduling activation/descheduling.
- the terminal verifies whether the DCI format is valid as follows.
- Table 11 illustrates a field for verifying single UL grant Type 2 scheduling activation when a UE is provided with a single UL grant Type 2 configuration in the uplink BWP of a scheduled cell.
- Table 12 exemplifies a field for verifying single UL grant Type 2 scheduling descheduling when a UE is provided with a single UL grant Type 2 configuration in an uplink BWP of a scheduled cell.
- the UE When the UE receives one or more UL grant Type 2 PUSCH settings, and the HARQ process number field in the DCI format is set to the same value as the index (i.e., ConfiguredGrantConfigIndex) of a specific setting among one or more UL grant Type 2 PUSCH settings, UL grant Type 2 PUSCH If activation of the configuration is indicated, and if the RV (redundancy version) field of the DCI format is set as shown in Table 11 above, verification of the DCI format for UL grant Type 2 PUSCH activation is achieved.
- the index i.e., ConfiguredGrantConfigIndex
- the HARQ process number field in the DCI format indicates the release of the UL grant Type 2 PUSCH configuration with the same value as the index (i.e., ConfiguredGrantConfigType2DeactivationStateList or ConfiguredGrantConfigIndex) of a specific configuration among one or more UL grant Type 2 PUSCH configurations.
- the index i.e., ConfiguredGrantConfigType2DeactivationStateList or ConfiguredGrantConfigIndex
- the 'Time domain resource assignment' field value of the UL grant in the DCI provides a row value of the resource allocation table.
- Each row of the resource allocation table defines parameters for time domain resource allocation, specifically a slot offset (K_2) to be applied to PUSCH transmission, a start and length indicator (SLIV) (or directly a start symbol (S) and allocation length) (L)), PUSCH mapping type, and number of repetitions (when numberOfRepetitions exist).
- the resource allocation table may be set by higher layer parameter PUSCH-TimeDomainResourceAllocationList or may be a predefined table.
- the PUSCH-TimeDomainResourceAllocationList (ie, resource allocation table) includes one or more PUSCH-TimeDomainResourceAllocation IEs.
- the PUSCH-TimeDomainResourceAllocation IE is used to establish a time domain relationship between a PDCCH and a PUSCH, and sets parameters for time domain resource allocation described above.
- a 'Time domain resource assignment' field value 0 in the DCI indicates the first element (TimeDomainResourceAllocation) in the list (ie, the first row of the resource allocation table), a value 1 indicates the second element in the list, and the like.
- the UE may be configured to repeatedly transmit the PUSCH. In this case, the UE repeatedly transmits the same uplink data/transport block (TB).
- TB uplink data/transport block
- PUSCH repetition transmission schemes can be divided into PUSCH repetition type A and PUSCH repetition type B.
- the PUSCH repetition type ie, pusch-RepTypeIndicatorDCI-0-1 or pusch-RepTypeIndicatorDCI-0-2
- the UE applies the PUSCH repetition Type B procedure when determining time domain resource allocation.
- the UE applies the PUSCH repetition Type A procedure when determining time domain resource allocation for the PUSCH scheduled by the PDCCH.
- PUSCH repetition type A transmission means slot level PUSCH repetition in which the same uplink data (TB or CSI) is repeatedly transmitted in consecutive slots while only one repetition is included in one slot.
- the start symbol S of the PUSCH relative to the start of the slot and the consecutive symbols L counted from the symbol S allocated for the PUSCH are the start and length of the indicated row of the resource allocation table. It is determined from the indicator (SLIV).
- the number of repetitions K is determined by the number of repetitions setting (ie, numberOfRepetitions). Otherwise, the number of repetitions for the uplink TB (eg, higher layer parameter push-AggregationFactor) may have one of ⁇ 2, 4, 8 ⁇ . That is, the same TB can be transmitted in consecutive 2 slots, 4 slots, or 8 slots. There is one TB transmission (ie one TO) in each slot. If the number of iterations is not set (that is, there is no push-AggregationFactor), the UE applies a value of 1.
- the UE transmits a PUSCH scheduled by DCI
- the UE is set to repetition number > 1 (eg, push-AggregationFactor > 1)
- the same symbol allocation is applied over consecutive slots according to the set repetition number. . That is, the terminal repeatedly transmits the uplink TB in the same symbol over several consecutive slots according to the set number of repetitions.
- PUSCH is limited to a single transmission layer.
- a redundancy version (rv_id) is determined differently for each TO of TB. That is, based on the redundancy version indicated by the DCI scheduling the PUSCH, the redundancy version applied to the n-th TO is determined according to Table 13 below.
- Table 13 illustrates redundancy versions for PUSCH transmission.
- n mod 4 0
- n mod 4 1
- n mod 4 2
- 3 0 0 2 3 One 2 2 3
- intra-slot frequency hopping or inter-slot frequency hopping can be configured.
- frequency hopping is performed at a slot boundary.
- intra-slot frequency hopping the number of symbols in the first hop and the number of symbols in the second hop are set by the base station, and frequency hopping is performed at the set symbol boundary.
- PUSCH repetition type B transmission means symbol level PUSCH repetition in which the same uplink data (TB or CSI) is repeatedly transmitted while including two or more repetitions in one slot.
- the start symbol S of PUSCH relative to the beginning of a slot and the consecutive symbols L counted from the symbol S allocated for PUSCH are the start symbols of the indicated row of the resource allocation table, respectively. (ie, startSymbol) and length (ie, length).
- the nominal number of repetitions means the number of repetitions indicated by RRC signaling or the like. For example, if substantially one nominal repetition passes (including) a slot boundary (or DL/UL switching point), the one nominal repetition is divided into two before and after the slot boundary (or DL/UL switching point) Therefore, the actual number of iterations may be greater than the nominal number of iterations.
- the redundancy version applied on the nth actual repetition (including the case where actual repetition is omitted) is determined according to Table 13 described above.
- inter-repetition frequency hopping or inter-slot frequency hopping can be configured.
- frequency hopping is applied for each nominal number of repetitions.
- frequency hopping is performed at slot boundaries.
- node(s) and terminal(s) constituting a wireless communication network are becoming intelligent/advanced.
- various networks according to various environmental parameters (eg, distribution/location of base stations, distribution/location/material of buildings/furniture, location/moving direction/speed of terminals, climate information, etc.) /base station determination parameter values (eg, transmit/receive power of each base station, transmit power of each terminal, precoder/beam of base station/terminal, time/frequency resource allocation for each terminal, duplex method of each base station, etc. ) is expected to be quickly optimized and derived/applied.
- many standardization organizations eg, 3GPP, O-RAN are considering introduction, and studies are also actively underway.
- AI Artificial Intelligence
- AI corresponds to any automation in which a machine can substitute for a job to be performed by a person.
- Machine learning refers to a technology in which a machine learns patterns for decision-making from data on its own without explicitly programming rules.
- Deep learning is an artificial neural network-based model, which can be performed by a machine at once from unstructured data to feature extraction and judgment.
- the algorithm relies on multi-layer networks of interconnected nodes for feature extraction and transformation inspired by biological neural systems, or neural networks.
- Common deep learning network architectures include deep neural networks (DNNs), recurrent neural networks (RNNs), and convolutional neural networks (CNNs).
- AI may be referred to as artificial intelligence based on deep learning in a narrow sense, but is not limited thereto in the present disclosure. That is, in the present disclosure, AI (or referred to as AI/ML) may collectively refer to automation technologies applied to intelligent machines (eg, UE, RAN, network node, etc.) capable of performing tasks like humans.
- intelligent machines eg, UE, RAN, network node, etc.
- AI (or AI/ML) can be classified according to various criteria as follows:
- Offline learning follows a sequential process of database collection, learning, and prediction. That is, collection and learning can be performed offline, and completed programs can be installed in the field and used for prediction work.
- centralized learning when training data collected from a plurality of different nodes is reported to a centralized node, all data resources/storage/learning (e.g., supervised learning) (supervised learning, unsupervised learning, reinforcement learning, etc.) are performed on one centralized node.
- supervised learning supervised learning, unsupervised learning, reinforcement learning, etc.
- Federated learning is built on data where collective models exist across disparate data owners. Instead of ingesting data into models, AI/ML models are imported as data sources, allowing local nodes/individual devices to collect data and train their own copy of the model, eliminating the need to report source data to a central node. In federated learning, parameters/weights of an AI/ML model can be sent back to a centralized node to support general model training. Federated learning has advantages in terms of increased computational speed and information security. That is, the process of uploading personal data to the central server is unnecessary, and leakage and abuse of personal information can be prevented.
- Distributed learning refers to the concept that the machine learning process is scaled and distributed across a cluster of nodes. Training models are split and shared across multiple nodes working concurrently to speed up model training.
- Supervised learning is a machine learning task that aims to learn mapping features from inputs to outputs given a labeled data set.
- the input data is called training data and has known labels or outcomes.
- Examples of supervised learning include:
- KNN k-Nearest Neighbor
- SVM Support Vector Machines
- Supervised learning can be further grouped into regression and classification problems, where classification is predicting labels and regression is predicting quantities.
- Unsupervised learning is a machine learning task that aims to learn features that describe hidden structures in unlabeled data. Input data is unlabeled and has no known consequences.
- Some examples of unsupervised learning include K-means clustering, principal component analysis (PCA), nonlinear independent component analysis (ICA), and long-short-term memory (LSTM). .
- RL reinforcement learning
- An agent aims to optimize a long-term goal by interacting with the environment based on a trial-and-error process, which is goal-oriented learning based on interaction with the environment.
- An example of the RL algorithm is as follows.
- SARSA State-Action-Reward-State-Action
- reinforcement learning can be grouped into model-based reinforcement learning and model-free reinforcement learning as follows.
- Model-based reinforcement learning Refers to a RL algorithm that uses a predictive model. The transition probabilities between the states are obtained using a model of the various dynamic states of the environment and these states leading to rewards.
- Model-free reinforcement learning refers to RL algorithms based on values or policies that achieve maximum future rewards. Multi-agent environments/states are less computationally complex and do not require an exact representation of the environment.
- RL algorithms can also be classified into value-based RL versus policy-based RL, policy-based RL versus non-policy RL, and the like.
- a feed-forward neural network is composed of an input layer, a hidden layer, and an output layer.
- FFNN In FFNN, information is transmitted only from the input layer to the output layer, and passes through the hidden layer if there is one.
- FIG. 11 illustrates a recurrent neural network
- a recurrent neural network is a type of artificial neural network in which hidden nodes are connected with directed edges to form a directed cycle. It is a model suitable for processing data that appears sequentially, such as voice and text.
- A denotes a neural network
- x t denotes an input value
- h t denotes an output value.
- h t may mean a state value indicating a current state based on time
- h t-1 may indicate a previous state value.
- LSTM Long Short-Term Memory
- RNN Random-Term Memory
- a convolutional neural network (CNN) is used for two purposes: reducing model complexity and extracting good features by applying a convolution operation commonly used in the field of image processing or image processing.
- Kernel or filter Means a unit/structure that applies weights to inputs in a specific range/unit.
- the kernel (or filter) can be changed by learning.
- Feature map It means the result of applying the kernel to the input.
- Several feature maps can be extracted to induce robustness to distortion, change, etc.
- - Pooling Refers to an operation (for example, max pooling, average pooling) to reduce the size of a feature map by downsampling the feature map.
- Auto encoder receives a feature vector x(x 1 , x 2 , x 3 , ...), and the same or similar vector x'(x' 1 , x' 2 , x' 3 , ... ) means a neural network that outputs ' .
- Auto encoder has the same characteristics of input node and output node. Since auto encoder reconstructs the input, the output can be referred to as reconstruction. Also, auto encoder is a kind of unsupervised learning.
- the loss function of the auto encoder illustrated in FIG. 13 is calculated based on the difference between the input and the output, and based on this, the degree of loss of the input is determined and the auto encoder performs an optimization process to minimize the loss. do.
- Data collection Data collected from network nodes, management entities or UEs as a basis for AI model training, data analysis and inference
- AI Model A data driven algorithm applying AI technology that generates a set of outputs including predictive information and/or decision parameters based on a set of inputs.
- a data collection function 10 collects input data and provides processed input to a model training function 20 and a model inference function 30. It is a function that provides data.
- Examples of input data may include measurements from UEs or other network entities, actor feedback, and AI model output.
- the data collection function 10 performs data preparation based on input data and provides processed input data through data preparation.
- the data collection function 10 does not perform specific data preparation (eg, data pre-processing and cleaning, forming and transformation) for each AI algorithm, , data preparation common to AI algorithms can be performed.
- the Model Training function (10) provides training data (11) to the Model Training function (20), and inference data (12) to the Model Inference function (30).
- Training Data) (11) is data required as an input for the AI Model Training function (20).
- Inference Data (12) is data required as an input for the AI Model Inference function (30).
- the data collection function 10 may be performed by a single entity (eg, UE, RAN node, network node, etc.) or may be performed by a plurality of entities.
- Training Data (11) and Inference Data (12) from a plurality of entities may be provided to the Model Training function (20) and the Model Inference function (30), respectively.
- the Model Training function 20 is a function that performs AI model training, validation, and testing that can generate model performance metrics as part of an AI model testing procedure.
- the Model Training function (20) is also responsible for data preparation (eg, data pre-processing and cleaning, forming and transformation) based on the Training Data (11) provided by the Data Collection function (10), if necessary.
- Model Deployment/Update (13) is used to initially deploy the trained, verified, and tested AI model to the Model Inference function (30) or to provide an updated model to the Model Inference function (30). do.
- the Model Inference function 30 is a function that provides an AI model inference output 16 (eg, prediction or decision).
- the Model Inference function 30 may provide Model Performance Feedback 14 to the Model Training function 20, if applicable.
- the Model Inference function (30) is also responsible for data preparation (eg, data pre-processing and cleaning, forming and transformation) based on the Inference Data (12) provided by the Data Collection function (10), if necessary.
- the output (Output) 16 refers to the inference output of the AI model generated by the Model Inference function 30, and detailed information of the inference output may vary depending on the use case.
- Model Performance Feedback (14) can be used to monitor the performance of the AI model, if available, and this feedback can also be omitted.
- the Actor function 40 is a function that receives an output 16 from the Model Inference function 30 and triggers or performs a corresponding task/action.
- the actor function 40 may trigger actions/actions for other entities (eg, one or more UEs, one or more RAN nodes, one or more network nodes, etc.) or itself.
- Feedback (15) can be used to derive training data (11), inference data (12), or to monitor the performance of the AI model and its effect on the network.
- the definition of training/validation/test in a data set used in AI/ML can be classified as follows.
- - Validation data Data set for verifying a model that has already been trained. That is, it usually means a data set used to prevent over-fitting of the training data set.
- Test data Data set for final evaluation. This data is data irrelevant to learning.
- the training data and validation data can be divided and used in a ratio of 8:2 or 7:3 within the entire training set, and if the test is included, 6:2:2 ( training: validation: test) can be divided and used.
- the cooperation level can be defined as follows, and modification due to the combination of a plurality of levels below or separation of any one level is possible.
- Cat 1 Entails inter-node support to improve each node's AI/ML algorithm. This applies when the UE receives assistance from the gNB (for training, adaptation, etc.) and vice versa. No exchange of models between network nodes is required at this level.
- a RAN node eg, a base station, a TRP, a central unit (CU) of a base station, etc.
- a network node eg, an operation administration maintenance (OAM) of a network operator, or a UE.
- OAM operation administration maintenance
- the function illustrated in FIG. 14 may be implemented in cooperation with two or more entities among a RAN, a network node, an OAM of a network operator, or a UE.
- one entity may perform some of the functions of FIG. 14 and another entity may perform the remaining functions.
- transfer / provision of data / information between each function is omitted. It can be.
- the Model Training function 20 and the Model Inference function 30 are performed by the same entity, the delivery/provision of the Model Deployment/Update 13 and the Model Performance Feedback 14 may be omitted.
- any one of the functions illustrated in FIG. 14 may be performed in collaboration with two or more entities among a RAN, a network node, an OAM of a network operator, or a UE. This may be referred to as a split AI operation.
- 15 is a diagram illustrating segmented AI inference.
- Model Inference function among split AI operations, is cooperatively performed by an end device such as a UE and a network AI/ML endpoint.
- each of the Model Training function, Actor, and Data Collection function is split into multiple parts according to the current task and environment, and can be performed by cooperation of multiple entities.
- a computation-intensive and energy-intensive part may be performed at a network endpoint, while a privacy-sensitive part and a delay-sensitive part may be performed at an end device.
- the end device may execute a job/model from the input data to a specific part/layer and then transmit intermediated data to the network endpoint.
- a network endpoint executes the remaining parts/layers and provides inference outputs to one or more devices performing the action/task.
- 16 illustrates the application of a functional framework in a wireless communication system.
- the AI Model Training function is performed by a network node (eg, a core network node, an OAM of a network operator, etc.), and an AI Model Inference function is performed by a RAN node (eg, a base station, a TRP, a CU of a base station, etc.) ) exemplifies the case performed by a network node (eg, a core network node, an OAM of a network operator, etc.), and an AI Model Inference function is performed by a RAN node (eg, a base station, a TRP, a CU of a base station, etc.) ) exemplifies the case performed by a network node (eg, a core network node, an OAM of a network operator, etc.), and an AI Model Inference function is performed by a RAN node (eg, a base station, a TRP, a CU of a base station, etc.) ) exemplifies the case performed by
- Step 1 RAN node 1 and RAN node 2 transmit input data (ie, training data) for AI Model Training to the network node.
- RAN node 1 and RAN node 2 transmit data collected from the UE (eg, measurement of the UE related to RSRP, RSRQ, SINR of the serving cell and the neighboring cell, location of the UE, speed, etc.) together to the network node.
- data collected from the UE eg, measurement of the UE related to RSRP, RSRQ, SINR of the serving cell and the neighboring cell, location of the UE, speed, etc.
- Step 2 The network node trains the AI Model using the received training data.
- Step 3 The network node distributes/updates the AI Model to RAN node 1 and/or RAN node 2.
- RAN node 1 (and/or RAN node 2) may continue to perform model training based on the received AI Model.
- Step 4 RAN node 1 receives input data (ie, inference data) for AI Model Inference from the UE and RAN node 2.
- input data ie, inference data
- Step 5 RAN node 1 performs AI Model Inference using the received inference data to generate output data (eg, prediction or decision).
- Step 6 If applicable, RAN node 1 may send model performance feedback to the network node.
- Step 7 RAN node 1, RAN node 2, and UE (or 'RAN node 1 and UE', or 'RAN node 1 and RAN node 2') perform an action based on the output data. For example, in the case of a load balancing operation, the UE may move from RAN node 1 to RAN node 2.
- Step 8 RAN node 1 and RAN node 2 transmit feedback information to the network node.
- FIG. 17 illustrates the application of a functional framework in a wireless communication system.
- FIG. 17 illustrates a case in which both the AI Model Training function and the AI Model Inference function are performed by a RAN node (eg, a base station, a TRP, a CU of a base station, etc.).
- a RAN node eg, a base station, a TRP, a CU of a base station, etc.
- Step 1 The UE and RAN node 2 transmit input data (ie, training data) for AI Model Training to RAN node 1.
- input data ie, training data
- Step 2 RAN node 1 trains the AI model using the received training data.
- Step 3 RAN node 1 receives input data (ie, inference data) for AI Model Inference from the UE and RAN node 2.
- input data ie, inference data
- Step 4 RAN node 1 performs AI Model Inference using the received inference data to generate output data (eg, prediction or decision).
- Step 5 RAN node 1, RAN node 2, and UE (or 'RAN node 1 and UE', or 'RAN node 1 and RAN node 2') perform an action based on the output data. For example, in the case of a load balancing operation, the UE may move from RAN node 1 to RAN node 2.
- Step 6 RAN node 2 sends feedback information to RAN node 1.
- FIG. 18 illustrates a case in which the AI Model Training function is performed by a RAN node (eg, a base station, a TRP, a CU of a base station, etc.) and an AI Model Inference function is performed by a UE.
- a RAN node eg, a base station, a TRP, a CU of a base station, etc.
- an AI Model Inference function is performed by a UE.
- Step 1 The UE transmits input data (ie, training data) for AI Model Training to the RAN node.
- the RAN node may collect data from various UEs and/or from other RAN nodes (e.g., RSRP, RSRQ, measurement of the UE related to the serving cell and neighboring cell, SINR, UE location, speed, etc.) have.
- Step 2 The RAN node trains the AI Model using the received training data.
- Step 3 The RAN node distributes/updates the AI Model to the UE.
- the UE may continue to perform model training based on the received AI Model.
- Step 4 Receives input data (ie, inference data) for AI Model Inference from the UE and the RAN node (and/or from other UEs).
- Step 5 The UE generates output data (eg, prediction or decision) by performing AI Model Inference using the received inference data.
- output data eg, prediction or decision
- Step 6 If applicable, the UE may send model performance feedback to the RAN node.
- Step 7 The UE and the RAN node perform an action based on the output data.
- Step 8 The UE sends feedback information to the RAN node.
- nodes and terminals constituting a wireless communication network are becoming intelligent/advanced.
- various environmental parameters e.g, distribution/location of base stations, distribution/location/material of buildings/furniture, location/moving direction/speed of terminals, climate information, etc.
- Various (network/base station determination) parameter values e.g., transmit/receive power of each base station, transmit power of each terminal, precoder/beam of base station/terminal, time/frequency resource allocation for each terminal, each A duplex method of a base station, etc.
- transmit/receive power of each base station e.g., transmit/receive power of each base station, transmit power of each terminal, precoder/beam of base station/terminal, time/frequency resource allocation for each terminal, each A duplex method of a base station, etc.
- the network can quickly control/adjust interference for each terminal according to environmental parameters that change in real time. For example, the network can control the terminal so that interference is very small for a specific time/frequency/space (eg, beam, layer) resource, and interference is very large for other specific time/frequency/space resources.
- a specific time/frequency/space eg, beam, layer
- the network may control transmission/reception to be avoided for time/frequency/space resources that cause significant interference to the terminal. And, the network can control the terminal to perform communication mainly using time/frequency/space resources with little interference.
- the network may control a terminal equipped with an interference cancellation reception function to apply an interference cancellation technique (eg, a technique of estimating and then canceling an interference beam/layer) to a corresponding resource.
- an interference cancellation technique eg, a technique of estimating and then canceling an interference beam/layer
- the data to be input to the AI model is the location/distribution of terminals on a network/base station basis, requested traffic, and information related to location movement (e.g. movement along a certain route, such as movement on a train). It may include at least one of movement-related information of a terminal that moves and/or information about a fixed-type terminal having little probability of position change, etc.).
- data to be output from the AI model may include at least one of a predicted value for location/distribution change of terminals and/or a predicted value for a change in demand traffic pattern of terminals.
- the network/base station provides short-term/mid-term time for terminals based on the predicted value and capability information of each terminal (eg, information related to whether or not the terminal has an interference cancellation reception function). /Frequency/spatial resource allocation method and/or interference control/adjustment method may be determined.
- the network/base station determines the time/frequency/space resource grid to be occupied by each (active) terminal in consideration of interference avoidance/sorting according to the prediction value and capability information of each terminal. patterns can be determined.
- data to be input to the AI model may be the same as data to be input to the AI model in the first scenario.
- Data to be output from the AI model may include data related to a short/medium term time/frequency/spatial resource allocation method and/or an interference control/adjustment method for terminals.
- the network/base station may determine a pattern for a time/frequency/space resource grid to be occupied by each (active) terminal in consideration of interference avoidance/sorting according to data to be output from the AI model.
- the present disclosure describes a method for improving a plurality of TO-based transmission schemes that are variously used in a wireless communication system to improve reliability and secure coverage.
- TO means time (eg, symbol, slot, etc.) / frequency (eg, subcarrier, RB, etc.) / space (eg, layer, beam, etc.) resource unit for performing a transmission operation, and a plurality of TO-based
- the transmission method refers to a method of repeatedly or/and dividing the same information over one or more time/frequency/spatial resources.
- a method of repeatedly transmitting one transport block (TB) in a plurality of PDSCH/PUSCH TOs may be performed.
- a method of repeatedly transmitting downlink/uplink control information (DCI/UCI), which is control information of a physical layer, to several PDCCH/PUCCH TOs may be performed.
- a method of repeatedly transmitting the same data eg, TB/DCI/UCI, etc.
- a 'repeated transmission method' a method of repeatedly transmitting the same data (eg, TB/DCI/UCI, etc.) to various TOs.
- TB/DCI/UCI, etc. may be transmitted over several TOs. That is, by transmitting only a part of TB/DCI/UCI in each TO, all TB/DCI/UCI, etc. can be transmitted over a plurality of TOs.
- a method of transmitting specific data eg, TB/DCI/UCI, etc.
- a 'fraction transmission method' a method of transmitting specific data (eg, TB/DCI/UCI, etc.) across a plurality of TOs.
- different beam information eg, TCI, spatial relation, target TRP
- TCI time/frequency offset related information
- the number and location of TOs are set/instructed in advance through higher layer signaling, or corresponding scheduling indicator information (eg, Scheduling DCI) may be included and indicated.
- scheduling indicator information eg, Scheduling DCI
- the resource allocation information may be initially delivered and indicated/set.
- the transmission operation is affected by dynamically changing/controlled traffic and interference environments for AI-based networks/base stations or networks/base stations with advanced performance.
- AI-based terminal or a terminal with advanced performance may determine/control the number of (minimum) TOs for successful transmission.
- 19 is a diagram for explaining a method for a terminal to perform communication according to an embodiment of the present disclosure.
- the terminal may receive first information related to a plurality of TOs including the number of transmission occasions (TOs) from the base station (S1810).
- TOs transmission occasions
- the first information may include information related to a plurality of TOs (eg, at least one of the number of TOs, resource allocation information for the plurality of TOs, and the (minimum) number of TOs to perform communication between the terminal and the base station, etc.) can
- the first information may be set by higher layer signaling by the base station or indicated through scheduling indicator information (eg, DCI, etc.).
- the first information may be predefined between a terminal and a base station.
- the terminal may receive second information indicating whether to perform communication in one or more specific TOs among a plurality of TOs from the base station (S1820).
- the second information may be obtained based on data output through an artificial intelligence (AI) model pre-learned (or trained) by the base station or/and the network node.
- AI artificial intelligence
- the corresponding AI model controls communication in one or more specific TOs among a plurality of TOs through various types of input data (eg, at least one of location/distribution of terminals in a base station, requested traffic, information related to location movement, etc.) It can be learned to output information.
- the base station may transmit second information for controlling communication in one or more specific TOs to the terminal through the communication control information obtained through the corresponding AI model.
- the corresponding AI model can be trained to output second information through various types of input data (eg, at least one of location/distribution of terminals in a base station, requested traffic, information related to location movement, etc.).
- the base station may transmit the second information obtained through the AI model to the terminal.
- the terminal may transmit acknowledgment (ACK)/negative-acknowledgement (NACK) to the base station.
- ACK acknowledgment
- NACK negative-acknowledgement
- the terminal may perform communication with the base station in at least one TO among a plurality of TOs based on the second information (S1830).
- a terminal includes downlink control information (DCI) or a medium access control (MAC)-control element (CE) while performing communication with a base station based on first information. 2 information can be received. For example, while performing communication with the base station until the first third TO among the plurality of TOs, the terminal may receive the second information from the base station through DCI or MAC-CE.
- DCI downlink control information
- MAC medium access control
- CE medium access control element
- the second information may include information indicating not to perform communication in the one or more specific TOs, and the one or more specific TOs is the time at which the second information is received among the plurality of TOs. It may mean the following TO. At this time, the information indicating not to perform communication in the one or more specific TOs may mean a hold message.
- the terminal may receive from the base station information instructing to resume communication with the base station from a first TO among TOs after the point at which the second information is received.
- the information instructing to resume communication with the base station may mean a resume message.
- the second information may include information indicating not to perform communication in the one or more specific TOs, and the one or more specific TOs is the time at which the second information is received among the plurality of TOs. It may mean a TO from a subsequent TO to a second TO.
- the information indicating not to perform communication in the one or more specific TOs may mean a skip message.
- the terminal can stop communication with the base station.
- the second information may indicate to perform communication in one or more specific TOs among a plurality of TOs, and not to perform communication in TOs other than the specific one or more TOs among the plurality of TOs. That is, the second information may include a pattern message about whether a plurality of consecutive TOs are actually transmitted.
- the terminal may receive additional second information from the base station.
- the additional second information the same content as indicated in the first second information (eg, symbol location information within a slot, frequency location information, etc.) may be omitted.
- the terminal may perform communication with the base station based on the additional second information.
- the number of TOs to communicate with the base station may be predefined or set by the base station.
- the setting of the number of TOs to communicate with the base station may be based on the first information, but is not limited thereto and may be set by separate higher layer signaling.
- the terminal may stop communication with the base station based on the total sum of the number of specific one or more TOs and the number of TOs that communicated according to the additional second information being the number of TOs to communicate with the base station. have.
- the terminal stops communication with the base station. can do.
- 20 is a diagram for explaining a method of performing communication by a base station according to an embodiment of the present disclosure.
- the base station may transmit first information related to a plurality of TOs including the number of TOs to the terminal (S1910).
- the base station may transmit second information indicating whether to perform communication in one or more specific TOs among a plurality of TOs to the terminal (S1920).
- the base station may perform communication with the terminal in at least one TO among a plurality of TOs based on the second information (S1930).
- 21 is a diagram for explaining a method of performing uplink transmission by a terminal according to an embodiment of the present disclosure.
- the terminal may receive information related to a plurality of TOs from the base station (S2010).
- the information related to the plurality of TOs may include at least one of the number of the plurality of TOs, resource allocation information for the plurality of TOs, and the number of TOs to perform communication between the terminal and the base station.
- the terminal may perform uplink transmission in at least one TO among a plurality of TOs based on the information (S2020).
- the terminal may stop uplink transmission after a specific TO among the plurality of TOs, based on whether information related to uplink transmission performed up to a specific TO among the plurality of TOs satisfies a specific condition (S2030).
- information related to uplink transmission performed up to a specific TO is a downlink reference signal for uplink transmission performed up to a specific TO (eg, DL RS for PUCCH / SRS / PUCCH / PRACH (eg, spatial relation RS, (accumulated) quality values (or values measured/predicted from quality (changes)) of pathloss RS, TCI, etc.). That is, information related to uplink transmission performed up to a specific TO is measured from the quality value (or quality (change)) of the downlink reference signal for the uplink transmission accumulated as it is performed up to a specific TO among a plurality of TOs. predicted values).
- DL RS for PUCCH / SRS / PUCCH / PRACH eg, spatial relation RS, (accumulated) quality values (or values measured/predicted from quality (changes) of pathloss RS, TCI, etc.
- the specific condition may include a condition based on whether the (accumulated) quality value exceeds the second threshold value.
- the terminal may transmit information indicating the suspension of uplink transmission to the base station in a specific TO or through a separate uplink resource. For example, the terminal may transmit information indicating interruption of uplink transmission in a specific TO to the base station through a separate information field or by utilizing a specific (reserved) codepoint of an existing field.
- information related to uplink transmission performed up to a specific TO may be obtained based on data output through a previously learned (or trained) artificial intelligence (AI) model.
- AI artificial intelligence
- the corresponding AI model through various types of input data (eg, data related to a downlink reference signal for uplink transmission, etc.), the quality of downlink RS related to uplink transmission performed in a specific TO ( change) can be learned to output a value.
- the terminal may determine whether a specific condition is satisfied by determining whether the quality (change) value of the corresponding downlink RS output through the AI model exceeds the second threshold. Since the learning/reasoning method of the AI model has been described with reference to FIGS. 9 to 18, duplicate descriptions will be omitted.
- the base station may instruct/configure the total number of TOs (N) to the terminal in advance (through higher layer signaling) or instruct/configure the corresponding scheduling indicator information (eg, scheduling DCI). have. And, while the TO-based transmission operation is being performed, the base station may instruct/configure a hold/resume/skip message to the terminal (via DCI).
- N the total number of TOs
- DCI scheduling indicator information
- the hold message refers to a message instructing/setting to stop transmission/reception from a specific point in time after receiving a corresponding message.
- the resume message refers to a message instructing/setting to resume transmission/reception from a specific point in time after receiving a corresponding message (when reception/transmission is interrupted by a hold message).
- the skip message refers to a message containing an instruction to stop transmission/reception at a predetermined or/and set number of TOs from a specific point in time after receiving a corresponding message.
- the number of TOs to stop transmission/reception may be a predefined value (eg, 1) applied, set through a separate (eg, higher layer signaling) message, or a value indicated together with a skip message. .
- ACK/NACK information regarding whether the terminal normally received the hold/resume/skip message may be set to be returned (to the base station). That is, the terminal may transmit ACK/NACK information on whether the hold/resume/skip message is normally received to the base station.
- the terminal may transmit/receive in (continuous) TO according to a preset/instructed method.
- the terminal may stop receiving/transmitting after receiving/transmitting TO as many times as set/instructed N times or after a 'specific time/count'.
- 'specific time/count' may be a predefined specific value (according to the N value) or a value set/instructed by the base station.
- information related to 'specific time/count' is omitted, and the operation described in the first embodiment may be defined.
- the terminal may stop the reception/transmission operation after completing the reception/transmission operation in 32 TOs up to the time point of 52 TO (64 TO or less). If reception/transmission corresponding to 40 TOs is interrupted due to a hold/resume/skip message in the middle of DL reception or UL transmission, the UE receives 'specific number of times' even if reception/transmission is not completed in 32 TOs. After performing reception/transmission only up to the 64 TO point designated by ', reception/transmission can be stopped.
- the base station sends a pattern message about whether or not consecutive M TOs are actually transmitted to the terminal through corresponding scheduling indicator information and/or separate indicator information (eg, MAC-CE and/or DCI). can be dynamically directed to .
- the M value may be a predefined value (according to subcarrier spacing (SCS) or slot format, etc.) or a value set/instructed by the base station.
- SCS subcarrier spacing
- slot format etc.
- the (scheduling) indicator information may be transmitted one or more times (eg, every M TO). And, when subsequent indicator(s) are transmitted after the initial indicator information is transmitted, the same (or maintained) information (eg, symbol position information within a slot, frequency position information) may be omitted.
- the base station presets/instructs the (minimum) number (P) of total TOs to be actually transmitted/received to the terminal (through higher layer signaling) or provides initial scheduling indicator information (eg, It can be set/instructed through scheduling DCI).
- the P value may be determined as a specific value (by other variables such as M value, SCS, slot format, etc.).
- the terminal can expect to receive additional indicator information from the base station (within a certain time) until the total number of actually transmitted/received TOs reaches P times.
- the terminal may expect that the base station does not transmit additional indicator information after the total number of actually transmitted/received TOs is achieved P times.
- the terminal when the P value is indicated/set/determined as an actual transmission TO value rather than a value for the minimum number of total TOs to be actually transmitted, the terminal (a value indicated in the pattern message (e.g., a value indicating transmission/reception) Even if the number of TOs, etc.) exceeds P), it is possible to perform transmission/reception at P-time TO and then stop transmission/reception operations.
- a value indicated in the pattern message e.g., a value indicating transmission/reception
- the base station stops transmission through a separate indicator to the terminal, or further An error-related indicator may not be sent.
- the terminal may interpret that the repeated/division transmission is stopped.
- the pattern for M contiguous TOs is a pattern defined as a relative contiguous time/frequency/space unit index based on scheduling resources or resource information included in scheduling information, or an absolute contiguous time/frequency/space on the system frame structure. It may be a pattern defined by a unit index (eg, an absolute slot index).
- the continuous resource may be a continuous resource that satisfies a specific condition.
- consecutive slots may be slots in which a DL portion in which the corresponding PDSCH can be transmitted exists.
- the terminal receives a pattern message (eg, [1011001010110011]) through DCI.
- a pattern message eg, [1011001010110011]
- 1 may indicate transmission/reception in a corresponding slot
- 0 may indicate transmission/reception in a corresponding slot. That is, in the above example, the total number of TOs actually transmitted (ie, the total number of 1s in the pattern message indicated by the DCI) may be 9.
- the P value is defined as the value of the minimum number of all TOs to be actually transmitted, and P is instructed/set/determined to be 12.
- the terminal transmits a total of 16 (9 times + 7 times) up to the last TO (ie, the 32nd TO) of the other pattern message. Transmission/reception can be performed in TO.
- the P value is defined as the number of TOs actually transmitted (ie, the total number of TOs to be actually transmitted) and P is indicated/set/determined as 12.
- another pattern message eg, [1000001010110011]
- the terminal performs a total of 12 (9 times + 3 times) transmission/reception in the 25th TO and transmits/receives thereafter. can be stopped
- the UE when a base station allocates resources for N TOs to a UE, the UE (when a specific condition is satisfied) some M of the TOs (M is equal to N or small value) TOs may be transmitted, and then transmission may be stopped.
- the specific condition may be a condition related to a case in which a (predicted) performance metric related to reliability is satisfied with a specific quality threshold value or more even when transmission is performed only M times (ie, transmission in M TOs).
- the performance metric is the quality of downlink RS (eg, DL RS (eg, spatial relation RS, pathloss RS, TCI) for PUCCH / SRS / PUCCH / PRACH) related to the uplink transmission It can be a value that is measured/predicted from (change).
- DL RS eg, spatial relation RS, pathloss RS, TCI
- the threshold may be a predefined value or a value set/instructed by a base station.
- the terminal may transmit a message indicating that transmission is stopped when a specific condition is satisfied to the base station at the (last) M-th TO. For example, the terminal may transmit a message indicating that transmission is stopped to the base station through a separate information field or by utilizing a specific (reserved) codepoint of an existing field in the M-th TO. As another example, the terminal may transmit a message indicating transmission is stopped to the base station through a separate UL resource in the M-th TO. Due to this, the burden of blind decoding of the base station can be reduced, and UL resources can be recycled.
- Embodiment 3 can be applied together with the methods according to Embodiments 1 and 2, respectively.
- the base station can control transmission of the terminal by sending a hold/resume/skip message to the terminal, and the terminal has sufficient (according to AI-based prediction information) If it is determined that TO has been transmitted, transmission may be stopped.
- the base station can control the transmission of the terminal by transmitting a dynamic TO pattern message to the terminal, and the terminal has sufficient TO (according to AI-based prediction information) If it is determined that has been transmitted, the transmission may be stopped.
- Embodiment 3 may be utilized as one of the methods/conditions for stopping transmission in Embodiment 1/Embodiment 2.
- 22 is a diagram for explaining a signaling procedure of a network side and a terminal according to the present disclosure.
- M-TRP 22 is a network side in a (M-TRP) situation to which the examples of the present disclosure described above (eg, embodiment 1, embodiment 2, embodiment 3 or a combination of one or more of the detailed examples) can be applied It shows an example of signaling between (network side) and terminal (UE).
- M-TRP network side in a
- the terminal/network side is exemplary and can be applied to various devices as described with reference to FIG. 23 . 22 is for convenience of description and does not limit the scope of the present disclosure. In addition, some step(s) shown in FIG. 22 may be omitted depending on circumstances and/or settings. In addition, in the operation of the network side/terminal of FIG. 22, the above-described uplink transmission/reception operation, M-TRP related operation, etc. may be referred to or used.
- the network side may be one base station including a plurality of TRPs, or may be one cell including a plurality of TRPs.
- the network side may include a plurality of remote radio heads (RRHs)/remote radio units (RRUs).
- RRHs remote radio heads
- RRUs remote radio units
- an ideal/non-ideal backhaul may be established between TRP 1 and TRP 2 constituting the network side.
- RRHs remote radio heads
- RRUs remote radio units
- TRP refers to a panel, an antenna array, and a cell (eg, macro cell/small cell/ It may be replaced with expressions such as a pico cell, etc.), a transmission point (TP), a base station (base station, gNB, etc.) and may be applied.
- TRPs may be classified according to information (eg, CORESET index, ID) on the CORESET group (or CORESET pool). For example, when one UE is configured to transmit/receive with multiple TRPs (or cells), this may mean that multiple CORESET groups (or CORESET pools) are configured for one UE. Configuration of such a CORESET group (or CORESET pool) may be performed through higher layer signaling (eg, RRC signaling, etc.).
- a base station may mean a generic term for an object that transmits and receives data with a terminal.
- the base station may be a concept including one or more transmission points (TPs), one or more transmission and reception points (TRPs), and the like.
- the TP and/or the TRP may include a panel of a base station, a transmission and reception unit, and the like.
- the terminal may provide training data (or learning data) for training (or learning) the AI model to the network side (e.g., location/distribution of terminals based on the network side, requested traffic, information related to location movement, etc.) Yes (S105).
- training data or learning data
- various nodes eg, RAN 1 node/RAN node 2
- the network side may train an AI model based on training data provided from the UE or/and the RAN 1 node/RAN 2 node (S110).
- the AI model may be trained to output data necessary for obtaining second information indicating whether to perform communication in one or more specific TOs among a plurality of TOs.
- an AI model may be trained to output second information.
- the AI model may be trained to output information related to a plurality of TOs optimized for the terminal.
- the setting information or/and control information or/and data/signal transmitted from the network side to the terminal is output through the inference operation (S115) of the AI model or based on the data output through the inference operation (S115).
- the operation of the network described later may mean an operation according to an actor described with reference to FIG. 9 or/and an operation step described with reference to FIGS. 11 and 12 .
- the network side may acquire and transmit corresponding setting information or/and control information or/and data/signal to the terminal without using the AI model.
- the AI model performs an inference operation (S115) performed before the step of outputting each setting information or/and control information or/and data/signals, but this is only an example. do.
- the AI model may dynamically perform an inference operation when each setting information or/and control information or/and control data is required.
- the UE may receive configuration information from the network side in a method according to the above-described example (eg, embodiment 1, embodiment 2, embodiment 3 or a combination of one or more of the detailed examples) (S120). That is, the network side may transmit setting information to the terminal.
- the network side may transmit setting information to the terminal.
- the configuration information includes system information (SI) and/or scheduling information and/or beam management (BM) related settings (eg, DL BM related CSI-ResourceConfig IE/NZP CSI-RS resource set IE, etc.) can include
- the setting information may include information related to network-side configuration (ie, TRP configuration), resource allocation related to transmission and reception based on multiple TRPs, and the like.
- the setting information may include CORESET-related settings/search space set (SS)-related settings, and the like.
- the configuration information may be transmitted to a higher layer (eg, RRC or MAC CE).
- the setting information is defined or set in advance, the corresponding step may be omitted.
- the configuration information may include a parameter for applying the embodiment (eg, embodiment 1, embodiment 2, embodiment 3 or a combination of one or more of the detailed examples).
- the setting information may include setting information related to repeated transmission (eg whether or not to repeat transmission/number of repeated transmissions/repetition type/resource allocation information for repeated transmission (start symbol and length, etc.)).
- the setting information determines the value P of the (minimum) number of total TOs to be actually transmitted based on the embodiment (eg, embodiment 1, embodiment 2, embodiment 3, or a combination of one or more of detailed examples thereof). may also include
- an operation in which the UE (100 or 200 of FIG. 23 ) in step S120 receives the setting information from the network side (200 or 100 of FIG. 23 ) may be implemented by the device of FIG. 23 to be described below.
- one or more processors 102 may control one or more transceivers 106 and/or one or more memories 104 to receive the configuration information, and the one or more transceivers 106 may receive the configuration information from the network side.
- the UE may receive control information from the network side (S125). That is, the network side may transmit control information to the UE.
- control information may be DCI and MAC CE, and may be received through a control channel (eg, PDCCH) and a data channel (eg, PDSCH), respectively.
- control information may be transmitted through/using a representative TRP among TRPs constituting the network side, and in the case of multiple DCI-based cooperative transmission, through/using each TRP constituting the network side The control information may be transmitted.
- control information may be received based on the above-described embodiment (eg, Embodiment 1, Embodiment 2, Embodiment 3, or a combination of one or more of the detailed examples thereof).
- control information holds for repeated transmission based on the above-described embodiment (eg, embodiment 1, embodiment 2, embodiment 3 or a combination of one or more of the detailed examples) information/resume information/skip information.
- ACK (/NACK) information for the control information may be returned.
- control information is based on the above-described embodiment (eg, embodiment 1, embodiment 2, embodiment 3 or a combination of one or more of the detailed examples) of consecutive M TOs for repeated transmission. Pattern information on whether or not it is actually transmitted may be included.
- the control information may be transmitted several times (eg, every M TOs), and information (s) subsequent to the first information is information (eg, symbol position within a slot) in which the content indicated by the existing control information is maintained. information, frequency location information) may be omitted.
- the value P of the (minimum) number of total TOs to be actually transmitted may be indicated by the control information.
- the operation in which the terminal (100 or 200 in FIG. 23) receives control information from the network side (200 or 100 in FIG. , Example 2, Example 3 or a combination of one or more of their detailed examples), and the like.
- one or more processors 102 may control one or more transceivers 106 and/or one or more memories 104 to receive the control information, and the one or more transceivers 106 may receive the control information from the network side. can receive
- the terminal may receive data/signal from the network side (S130). Similarly, the network side (or BS) may transmit data/signals to the UE.
- the data/signal may be transmitted/received based on information set/instructed in steps S120/S125 (eg, setting information, control information, etc.).
- the terminal has a specific condition among N TOs to which resources are allocated.
- Some M TOs (M N) may perform transmission and stop transmission.
- the 'specific condition' is a downlink RS (eg, DL RS (eg, PUCCH / SRS / PUCCH / PRACH spatial relation RS, pathloss RS, TCI) related to the uplink transmission ) may correspond to a condition in which a value measured/predicted from the quality (change) is satisfied above a certain threshold value.
- DL RS eg, PUCCH / SRS / PUCCH / PRACH spatial relation RS, pathloss RS, TCI
- the terminal may transmit a message indicating transmission is stopped to the network side in the last Mth TO or through a separate UL resource.
- step S130 may be implemented by the device of FIG. 23 to be described below.
- one or more processors 102 may control one or more transceivers 106 and/or one or more memories 104 to transmit/receive the data/signals, and the one or more transceivers 106 may control the communication with the network side. Data/signal can be transmitted and received.
- an embodiment e.g., Embodiment 1, Embodiment 2, Embodiment 3 or a combination of one or more of the detailed examples
- the network side e.g., TRP 1 / TRP 2
- the UE may correspond to the second device, and vice versa depending on circumstances.
- an embodiment related to the above-described network-side/terminal signaling and operation may be performed by one or more processors of FIG. 23 (eg, 102, 202), and the above-described network side / terminal signaling and operation (eg, embodiment 1, embodiment 2, embodiment 3 or a combination of one or more of the detailed examples)
- Memory in the form of instructions/programs (eg, instructions, executable code) for driving at least one processor (eg, 102, 202) of FIG. 23 (eg, one or more memories of FIG. For example, it may be stored in 104, 204).
- FIG. 23 illustrates a block configuration diagram of a wireless communication device according to an embodiment of the present disclosure.
- the first device 100 and the second device 200 may transmit and receive radio signals through various radio access technologies (eg, LTE, NR).
- various radio access technologies eg, LTE, NR.
- the first 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 memory 104 and/or the transceiver 106 and may be configured to implement the descriptions, functions, procedures, suggestions, methods and/or flowcharts of operations set forth in this disclosure.
- the processor 102 may process information in the memory 104 to generate first information/signal, and transmit a radio signal including the first information/signal through the transceiver 106.
- the processor 102 may receive a radio signal including the second information/signal through 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 .
- memory 104 may perform some or all of the processes controlled by processor 102, or instructions for performing the descriptions, functions, procedures, suggestions, methods, and/or flowcharts of operations disclosed in this disclosure. It may store software codes including them.
- the processor 102 and memory 104 may be part of a communication modem/circuit/chip designed to implement a wireless communication technology (eg, LTE, NR).
- the transceiver 106 may be coupled 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 a radio frequency (RF) unit.
- a device may mean a communication modem/circuit/chip.
- the second 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 memory 204 and/or the transceiver 206 and may be configured to implement the descriptions, functions, procedures, suggestions, methods and/or flowcharts of operations set forth in this disclosure.
- the processor 202 may process information in the memory 204 to generate third information/signal, and transmit a radio signal including the third information/signal through the transceiver 206.
- the processor 202 may receive a radio signal including the fourth information/signal through the transceiver 206 and store information obtained from signal processing of the fourth information/signal 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 .
- memory 204 may perform some or all of the processes controlled by processor 202, or instructions for performing the descriptions, functions, procedures, suggestions, methods, and/or flowcharts of operations disclosed in this disclosure. It may store software codes including them.
- the processor 202 and memory 204 may be part of a communication modem/circuit/chip designed to implement a wireless communication technology (eg, LTE, NR).
- the transceiver 206 may be coupled 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.
- a device may mean a communication modem/circuit/chip.
- one or more protocol layers may be implemented by one or more processors 102, 202.
- one or more processors 102, 202 may implement one or more layers (eg, 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) in accordance with the descriptions, functions, procedures, proposals, methods and/or operational flow charts disclosed herein.
- PDUs Protocol Data Units
- SDUs Service Data Units
- processors 102, 202 may generate messages, control information, data or information in accordance with the descriptions, functions, procedures, proposals, methods and/or operational flow diagrams set forth in this disclosure.
- One or more processors 102, 202 may process PDUs, SDUs, messages, control information, data or signals containing information (e.g., baseband signals) according to the functions, procedures, proposals and/or methods disclosed herein. generated and provided to one or more transceivers (106, 206).
- One or more processors 102, 202 may receive signals (e.g., baseband signals) from one or more transceivers 106, 206, the descriptions, functions, procedures, suggestions, methods and/or described in this disclosure.
- PDUs, SDUs, messages, control information, data or information may be acquired according to the operational flowcharts.
- One or more processors 102, 202 may be referred to as a controller, microcontroller, microprocessor or microcomputer.
- One or more processors 102, 202 may be implemented by hardware, firmware, software, or a combination thereof.
- ASICs Application Specific Integrated Circuits
- DSPs Digital Signal Processors
- DSPDs Digital Signal Processing Devices
- PLDs Programmable Logic Devices
- FPGAs Field Programmable Gate Arrays
- the descriptions, functions, procedures, proposals, methods and/or operational flow charts disclosed in this disclosure may be implemented using firmware or software, and the firmware or software may be implemented to include modules, procedures, functions, and the like.
- Firmware or software configured to perform the descriptions, functions, procedures, suggestions, methods and/or operational flow diagrams disclosed in this disclosure may be included in one or more processors (102, 202) or stored in one or more memories (104, 204). It can be driven by the above processors 102 and 202.
- the descriptions, functions, procedures, suggestions, methods and/or operational flow diagrams disclosed in this disclosure may be implemented using firmware or software in the form of codes, instructions and/or sets of instructions.
- One or more memories 104, 204 may be coupled with one or more processors 102, 202 and may store various types of data, signals, messages, information, programs, codes, instructions and/or instructions.
- One or more memories 104, 204 may be comprised of ROM, RAM, EPROM, flash memory, hard drives, registers, cache memory, computer readable storage media, and/or combinations thereof.
- One or more memories 104, 204 may be located internally and/or external to one or more processors 102, 202. Additionally, one or more memories 104, 204 may be coupled to one or more processors 102, 202 through various technologies, such as wired or wireless connections.
- One or more transceivers 106, 206 may transmit user data, control information, radio signals/channels, etc., as referred to in the methods and/or operational flow charts of this disclosure, to one or more other devices.
- the one or more transceivers 106, 206 may receive user data, control information, radio signals/channels, etc. referred to in the descriptions, functions, procedures, proposals, methods and/or operational flow charts, etc. disclosed in this disclosure from one or more other devices. have.
- one or more transceivers 106 and 206 may be connected to one or more processors 102 and 202 and transmit and receive wireless signals.
- one or more processors 102, 202 may control one or more transceivers 106, 206 to transmit user data, control information, or radio 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 radio signals from one or more other devices. In addition, one or more transceivers 106, 206 may be coupled with one or more antennas 108, 208, and one or more transceivers 106, 206 may be connected to one or more antennas 108, 208, as described herein. , procedures, proposals, methods and / or operation flowcharts, etc. can be set to transmit and receive user data, control information, radio signals / channels, etc.
- one or more antennas may be a plurality of physical antennas or a plurality of logical antennas (eg, antenna ports).
- One or more transceivers (106, 206) convert the received radio signals/channels from RF band signals in order to process the received user data, control information, radio signals/channels, etc. using one or more processors (102, 202). It can be converted into a baseband signal.
- One or more transceivers 106 and 206 may convert user data, control information, and radio signals/channels processed by one or more processors 102 and 202 from baseband signals to RF band signals.
- one or more of the transceivers 106, 206 may include (analog) oscillators and/or filters.
- the scope of the present disclosure is software or machine-executable instructions (eg, operating systems, applications, firmware, programs, etc.) that cause operations in accordance with the methods of various embodiments to be executed on a device or computer, and such software or It includes a non-transitory computer-readable medium in which instructions and the like are stored and executable on a device or computer. Instructions that may be used to program a processing system that performs the features described in this disclosure may be stored on/in a storage medium or computer-readable storage medium and may be viewed using a computer program product that includes such storage medium. Features described in the disclosure may be implemented.
- the storage medium may include, but is not limited to, high speed random access memory such as DRAM, SRAM, DDR RAM or other random access solid state memory devices, one or more magnetic disk storage devices, optical disk storage devices, flash memory devices, or It may include non-volatile memory, such as other non-volatile solid state storage devices.
- the memory optionally includes one or more storage devices located remotely from the processor(s).
- the memory, or alternatively, the non-volatile memory device(s) within the memory includes non-transitory computer readable storage media.
- Features described in this disclosure may be stored on any one of the machine readable media to control hardware of a processing system and to allow the processing system to interact with other mechanisms that utilize results according to embodiments of the present disclosure. It may be integrated into software and/or firmware.
- Such software or firmware may include, but is not limited to, application code, device drivers, operating systems, and execution environments/containers.
- the wireless communication technology implemented in the devices 100 and 200 of the present disclosure may include Narrowband Internet of Things for low power communication as well as LTE, NR, and 6G.
- NB-IoT technology may be an example of LPWAN (Low Power Wide Area Network) technology, and may be implemented in standards such as LTE Cat NB1 and / or LTE Cat NB2. not.
- the wireless communication technology implemented in the devices 100 and 200 of the present disclosure may perform communication based on LTE-M technology.
- LTE-M technology may be an example of LPWAN technology, and may be called various names such as eMTC (enhanced machine type communication).
- LTE-M technologies are 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) It may be implemented in at least one of various standards such as LTE M, and is not limited to the above-mentioned names.
- the wireless communication technology implemented in the devices 100 and 200 of the present disclosure includes at least one of ZigBee, Bluetooth, and Low Power Wide Area Network (LPWAN) considering low power communication. It may include one, but is not limited to the above-mentioned names.
- ZigBee technology can generate personal area networks (PANs) related to small/low-power digital communication based on various standards such as IEEE 802.15.4, and can be called various names.
- PANs personal area networks
- the method proposed in the present disclosure has been described focusing on examples applied to 3GPP LTE/LTE-A and 5G systems, but can be applied to various wireless communication systems other than 3GPP LTE/LTE-A and 5G systems.
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Abstract
Description
| μ | Δf=2μ·15 [kHz] | CP |
| 0 | 15 | 일반(Normal) |
| 1 | 30 | 일반 |
| 2 | 60 | 일반, 확장(Extended) |
| 3 | 120 | 일반 |
| 4 | 240 | 일반 |
| 주파수 범위 지정(Frequency Range designation) | 해당 주파수 범위(Corresponding frequency range) | 서브캐리어 간격(Subcarrier Spacing) |
| FR1 | 410MHz - 7125MHz | 15, 30, 60kHz |
| FR2 | 24250MHz - 52600MHz | 60, 120, 240kHz |
| μ | Nsymb slot | Nslot frame,μ | Nslot subframe,μ |
| 0 | 14 | 10 | 1 |
| 1 | 14 | 20 | 2 |
| 2 | 14 | 40 | 4 |
| 3 | 14 | 80 | 8 |
| 4 | 14 | 160 | 16 |
| μ | Nsymb slot | Nslot frame,μ | Nslot subframe,μ |
| 2 | 12 | 40 | 4 |
| DCI 포맷 | 활용 |
| 0_0 | 하나의 셀 내 PUSCH의 스케줄링 |
| 0_1 | 하나의 셀 내 하나 또는 다중 PUSCH의 스케줄링, 또는 UE에게 셀 그룹(CG: cell group) 하향링크 피드백 정보의 지시 |
| 0_2 | 하나의 셀 내 PUSCH의 스케줄링 |
| 1_0 | 하나의 DL 셀 내 PDSCH의 스케줄링 |
| 1_1 | 하나의 셀 내 PDSCH의 스케줄링 |
| 1_2 | 하나의 셀 내 PDSCH의 스케줄링 |
| SPS-Config ::= SEQUENCE { periodicity ENUMERATED {ms10, ms20, ms32, ms40, ms64, ms80, ms128, ms160, ms320, ms640, spare6, spare5, spare4, spare3, spare2, spare1}, nrofHARQ-Processes INTEGER (1..8), n1PUCCH-AN PUCCH-ResourceId OPTIONAL, -- Need M mcs-Table ENUMERATED {qam64LowSE} OPTIONAL, -- Need S ..., [[ sps-ConfigIndex-r16 SPS-ConfigIndex-r16 OPTIONAL, -- Cond SPS-List harq-ProcID-Offset-r16 INTEGER (0..15) OPTIONAL, -- Need R periodicityExt-r16 INTEGER (1..5120) OPTIONAL, -- Need R harq-CodebookID-r16 INTEGER (1..2) OPTIONAL, -- Need R pdsch-AggregationFactor-r16 ENUMERATED {n1, n2, n4, n8 } OPTIONAL -- Need S ]] } |
| DCI format 1_1 | |
| HARQ process number | set to all '0's |
| Redundancy version | For the enabled transport block: set to all '0's |
| DCI format 1_0/1_1/1_2 | |
| HARQ process number | set to all '0's |
| Redundancy version | set to all '0's |
| Modulation and coding scheme | set to all '1's |
| Frequency domain resource assignment | - set to all '0's for FDRA Type 0 or for dynamicSwitch - set to all '1's for FDRA Type 1 |
| rv_id indicated by the DCI scheduling the PDSCH | rv_id to be applied to nth transmission occasion | |||
| n mod 4 = 0 | n mod 4 = 1 | n mod 4 = 2 | n mod 4 = 3 | |
| 0 | 0 | 2 | 3 | 1 |
| 2 | 2 | 3 | 1 | 0 |
| 3 | 3 | 1 | 0 | 2 |
| 1 | 1 | 0 | 2 | 3 |
| ConfiguredGrantConfig ::= SEQUENCE { frequencyHopping ENUMERATED {intraSlot, interSlot} OPTIONAL, -- Need S cg-DMRS-Configuration DMRS-UplinkConfig, mcs-Table ENUMERATED {qam256, qam64LowSE} OPTIONAL, -- Need S mcs-TableTransformPrecoder ENUMERATED {qam256, qam64LowSE} OPTIONAL, -- Need S uci-OnPUSCH SetupRelease { CG-UCI-OnPUSCH } OPTIONAL, -- Need M resourceAllocation ENUMERATED { resourceAllocationType0, resourceAllocationType1, dynamicSwitch }, rbg-Size ENUMERATED {config2} OPTIONAL, -- Need S powerControlLoopToUse ENUMERATED {n0, n1}, p0-PUSCH-Alpha P0-PUSCH-AlphaSetId, transformPrecoder ENUMERATED {enabled, disabled} OPTIONAL, -- Need S nrofHARQ-Processes INTEGER(1..16), repK ENUMERATED {n1, n2, n4, n8}, repK-RV ENUMERATED {s1-0231, s2-0303, s3-0000} OPTIONAL, -- Need R periodicity ENUMERATED { sym2, sym7, sym1x14, sym2x14, sym4x14, sym5x14, sym8x14, sym10x14, sym16x14, sym20x14, sym32x14, sym40x14, sym64x14, sym80x14, sym128x14, sym160x14, sym256x14, sym320x14, sym512x14, sym640x14, sym1024x14, sym1280x14, sym2560x14, sym5120x14, sym6, sym1x12, sym2x12, sym4x12, sym5x12, sym8x12, sym10x12, sym16x12, sym20x12, sym32x12, sym40x12, sym64x12, sym80x12, sym128x12, sym160x12, sym256x12, sym320x12, sym512x12, sym640x12, sym1280x12, sym2560x12 }, configuredGrantTimer INTEGER (1..64) OPTIONAL, -- Need R rrc-ConfiguredUplinkGrant SEQUENCE { timeDomainOffset INTEGER (0..5119), timeDomainAllocation INTEGER (0..15), frequencyDomainAllocation BIT STRING (SIZE(18)), antennaPort INTEGER (0..31), dmrs-SeqInitialization INTEGER (0..1) OPTIONAL, -- Need R precodingAndNumberOfLayers INTEGER (0..63), srs-ResourceIndicator INTEGER (0..15) OPTIONAL, -- Need R mcsAndTBS INTEGER (0..31), frequencyHoppingOffset INTEGER (1.. maxNrofPhysicalResourceBlocks-1) OPTIONAL, -- Need R pathlossReferenceIndex INTEGER (0..maxNrofPUSCH-PathlossReferenceRSs-1), ..., [[ pusch-RepTypeIndicator-r16 ENUMERATED {pusch-RepTypeA,pusch-RepTypeB} OPTIONAL, -- Need M frequencyHoppingPUSCH-RepTypeB-r16 ENUMERATED {interRepetition, interSlot} OPTIONAL, -- Cond RepTypeB timeReferenceSFN-r16 ENUMERATED {sfn512} OPTIONAL -- Need S ]] } OPTIONAL, -- Need R ..., |
| DCI format 0_0/0_1/0_2 | |
| HARQ process number | set to all '0's |
| Redundancy version | set to all '0's |
| DCI format 0_0/0_1/0_2 | |
| HARQ process number | set to all '0's |
| Redundancy version | set to all '0's |
| Modulation and coding scheme | set to all '1's |
| Frequency domain resource assignment | - set to all '0's for FDRA Type 2 with μ=1 - set to all '1's, otherwise |
| rv_id indicated by the DCI scheduling the PUSCH | rv_id to be applied to nth transmission occasion (repetition Type A) or nth actual repetition (repetition Type B) | |||
| n mod 4 = 0 | n mod 4 = 1 | n mod 4 = 2 | n mod 4 = 3 | |
| 0 | 0 | 2 | 3 | 1 |
| 2 | 2 | 3 | 1 | 0 |
| 3 | 3 | 1 | 0 | 2 |
| 1 | 1 | 0 | 2 | 3 |
Claims (21)
- 무선 통신 시스템에서 단말이 통신을 수행하는 방법에 있어서, 상기 방법은:복수의 전송 기회(transmission occasion, TO) 개수를 포함하는 상기 복수의 TO와 관련된 제1 정보를 기지국으로부터 수신하는 단계;상기 복수의 TO 중 특정 하나 이상의 TO에서 통신을 수행할지 여부를 지시하는 제2 정보를 상기 기지국으로부터 수신하는 단계; 및상기 제2 정보에 기초하여 상기 복수의 TO 중 적어도 하나의 TO에서 상기 기지국과 통신을 수행하는 단계를 포함하는, 방법.
- 제1항에 있어서,상기 제2 정보는,상기 제1 정보에 기초하여 상기 기지국과의 통신을 수행하는 동안, 하향링크 제어 정보(downlink control information, DCI) 또는 MAC(medium access control)-CE(control element)에 포함되어 상기 기지국으로부터 수신되는, 방법.
- 제1항에 있어서,상기 제2 정보는,상기 특정 하나 이상의 TO에서 통신을 수행하지 않을 것을 지시하는 정보를 포함하고,상기 특정 하나 이상의 TO는, 상가 복수의 TO 중 상기 제2 정보가 수신된 시점 이후의 TO인, 방법.
- 제3항에 있어서,상기 제2 정보가 수신된 시점 이후의 TO 중 제1 TO부터 상기 기지국과의 통신을 재개(resume)할 것을 지시하는 정보가 상기 기지국으로부터 수신되는, 방법.
- 제1항에 있어서,상기 제2 정보는,상기 특정 하나 이상의 TO에서 통신을 수행하지 않을 것을 지시하는 정보를 포함하고,상기 특정 하나 이상의 TO는, 상기 복수의 TO 중 상기 제2 정보가 수신된 시점 이후의 TO에서 제2 TO 까지의 TO인 방법.
- 제1항에 있어서,상기 복수의 TO 중 상기 기지국과의 통신이 수행된 TO의 개수 및 상기 제2 정보에 기초하여 경과된 TO의 개수의 총 합이 제1 임계값이 됨에 기반하여, 상기 기지국과의 통신이 중단되는, 방법.
- 제1항에 있어서,상기 제2 정보는,상기 특정 하나 이상의 TO에서 통신을 수행하고, 상기 복수의 TO 중 상기 특정 하나 이상의 TO를 제외한 TO에서 통신을 수행하지 않을 것을 지시하는, 방법.
- 제7항에 있어서,상기 특정 하나 이상의 TO의 개수가 상기 기지국과 통신을 수행할 TO의 개수 미만인 경우, 추가적인 제2 정보가 상기 기지국으로부터 수신되고,상기 추가적인 제2 정보에 기초하여 상기 기지국과의 통신이 수행되고,상기 기지국과 통신을 수행할 TO의 개수는 미리 정의되거나 상기 기지국에 의해 설정되는, 방법.
- 제8항에 있어서,상기 특정 하나 이상의 TO의 개수 및 상기 추가적인 제2 정보에 따라 통신을 수행한 TO의 개수의 총 합이 상기 기지국과 통신을 수행할 TO의 개수가 됨에 기반하여, 상기 기지국과의 통신이 중단되는, 방법.
- 제7항에 있어서,상기 특정 하나 이상의 TO의 개수가 상기 기지국과 통신을 수행할 TO의 개수 미만이고, 추가적인 제2 정보가 기 설정된 시구간 동안 상기 기지국으로부터 수신되지 않음에 기반하여, 상기 기지국과의 통신이 중단되는, 방법.
- 제1항에 있어서,상기 제2 정보의 수신에 대한 ACK(acknowledgement)/NACK(negative-acknowledgement)이 상기 기지국으로 전송되는, 방법.
- 제1항에 있어서,상기 제2 정보는,상기 기지국 또는 네트워크 노드에 의해 미리 학습된 인공 지능(artificial intelligence, AI) 모델을 통해 출력된 데이터에 기초하는, 방법.
- 무선 통신 시스템에서 단말이 상향링크 전송을 수행하는 방법에 있어서, 상기 방법은:복수의 전송 기회(transmission occasion, TO)와 관련된 정보를 기지국으로부터 수신하는 단계;상기 정보에 기초하여 상기 복수의 TO 중 적어도 하나의 TO에서 상향링크 전송을 수행하는 단계; 및상기 복수의 TO 중 특정 TO까지 수행된 상향링크 전송과 관련된 정보가 특정 조건을 만족함에 기반하여, 상기 복수의 TO 중 상기 특정 TO 후에 상기 상향링크 전송을 중단하는 단계를 포함하는, 방법.
- 제13항에 있어서,상기 특정 TO까지 수행된 상향링크 전송과 관련된 정보는,상기 특정 TO까지 수행된 상향링크 전송에 대한 하향링크 참조 신호(reference signal, RS)의 누적 품질 값을 포함하고,상기 특정 조건은,상기 누적 품질 값이 제2 임계값을 초과하는지 여부에 기초한 조건을 포함하는, 방법.
- 제14항에 있어서,상기 특정 조건이 만족됨에 기반하여, 상기 상향링크 전송의 중단을 나타내는 정보는 상기 특정 TO에서 또는 별도의 상향링크 자원을 통해 상기 기지국으로 전송되는, 방법.
- 제14항에 있어서,상기 특정 TO까지 수행된 상향링크 전송과 관련된 정보는,미리 학습된 AI 모델을 통해 출력된 데이터에 기초하는, 방법.
- 무선 통신 시스템에서 통신을 수행하는 단말에 있어서, 상기 단말은:하나 이상의 송수신기(transceiver); 및상기 하나 이상의 송수신기와 연결된 하나 이상의 프로세서를 포함하고,상기 하나 이상의 프로세서는:복수의 전송 기회(transmission occasion, TO) 개수를 포함하는 상기 복수의 TO와 관련된 제1 정보를 기지국으로부터 상기 하나 이상의 송수신기를 통해 수신하고;상기 복수의 TO 중 특정 하나 이상의 TO에서 통신을 수행할지 여부를 지시하는 제2 정보를 상기 기지국으로부터 상기 하나 이상의 송수신기를 통해 수신하고; 및상기 제2 정보에 기초하여 상기 복수의 TO 중 적어도 하나의 TO에서 상기 기지국과 통신을 수행하도록 설정되는, 방법.
- 무선 통신 시스템에서 기지국이 통신을 수행하는 방법에 있어서, 상기 방법은:복수의 전송 기회(transmission occasion, TO) 개수를 포함하는 상기 복수의 TO와 관련된 제1 정보를 단말로 전송하는 단계;상기 복수의 TO 중 특정 하나 이상의 TO에서 통신을 수행할지 여부를 지시하는 제2 정보를 상기 단말로 전송하는 단계; 및상기 제2 정보에 기초하여 상기 복수의 TO 중 적어도 하나의 TO에서 상기 단말과 통신을 수행하는 단계를 포함하는, 방법.
- 무선 통신 시스템에서 통신을 수행하는 기지국에 있어서, 상기 기지국은:하나 이상의 송수신기(transceiver); 및상기 하나 이상의 송수신기와 연결된 하나 이상의 프로세서를 포함하고,상기 하나 이상의 프로세서는:복수의 전송 기회(transmission occasion, TO) 개수를 포함하는 상기 복수의 TO와 관련된 제1 정보를 단말로 전송하는 단계;상기 복수의 TO 중 특정 하나 이상의 TO에서 통신을 수행할지 여부를 지시하는 제2 정보를 상기 단말로 전송하는 단계; 및상기 제2 정보에 기초하여 상기 복수의 TO 중 적어도 하나의 TO에서 상기 단말과 통신을 수행하는 단계를 포함하는, 기지국.
- 무선 통신 시스템에서 통신을 수행하기 위해 단말을 제어하도록 설정되는 프로세싱 장치에 있어서, 상기 프로세싱 장치는:하나 이상의 프로세서; 및상기 하나 이상의 프로세서에 동작 가능하게 연결되고, 상기 하나 이상의 프로세서에 의해 실행됨에 기반하여, 동작들을 수행하는 명령(instruction)들을 저장하는 하나 이상의 컴퓨터 메모리를 포함하며,상기 동작들은:복수의 전송 기회(transmission occasion, TO) 개수를 포함하는 상기 복수의 TO와 관련된 제1 정보를 기지국으로부터 수신하는 동작;상기 복수의 TO 중 특정 하나 이상의 TO에서 통신을 수행할지 여부를 지시하는 제2 정보를 상기 기지국으로부터 수신하는 동작; 및상기 제2 정보에 기초하여 상기 복수의 TO 중 적어도 하나의 TO에서 상기 기지국과 통신을 수행하는 동작을 포함하는, 프로세싱 장치.
- 하나 이상의 명령을 저장하는 하나 이상의 비-일시적(non-transitory) 컴퓨터 판독가능 매체로서,상기 하나 이상의 명령은 하나 이상의 프로세서에 의해서 실행되어, 무선 통신 시스템에서 통신을 수행하는 장치가:복수의 전송 기회(transmission occasion, TO) 개수를 포함하는 상기 복수의 TO와 관련된 제1 정보를 기지국으로부터 수신하고;상기 복수의 TO 중 특정 하나 이상의 TO에서 통신을 수행할지 여부를 지시하는 제2 정보를 상기 기지국으로부터 수신하고; 및상기 제2 정보에 기초하여 상기 복수의 TO 중 적어도 하나의 TO에서 상기 기지국과 통신을 수행하도록 제어하는, 컴퓨터 판독가능 매체.
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| KR1020237036199A KR20230160875A (ko) | 2021-05-11 | 2022-05-09 | 무선 통신 시스템에서 통신을 수행하는 방법 및 장치 |
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- 2022-05-09 US US18/558,321 patent/US20240224287A1/en active Pending
- 2022-05-09 WO PCT/KR2022/006557 patent/WO2022240089A1/ko not_active Ceased
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| WO2024255036A1 (en) * | 2023-06-13 | 2024-12-19 | Huawei Technologies Co., Ltd. | Communication method and communication apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20230160875A (ko) | 2023-11-24 |
| US20240224287A1 (en) | 2024-07-04 |
| EP4340269A1 (en) | 2024-03-20 |
| EP4340269A4 (en) | 2025-04-23 |
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