WO2020085854A1 - 무선 통신 시스템에서 사이드링크 harq 피드백과 관련된 정보에 기반하여 자원선택 윈도우를 결정하는 방법 및 장치 - Google Patents
무선 통신 시스템에서 사이드링크 harq 피드백과 관련된 정보에 기반하여 자원선택 윈도우를 결정하는 방법 및 장치 Download PDFInfo
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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
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
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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
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1861—Physical mapping arrangements
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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
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1887—Scheduling and prioritising arrangements
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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
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1893—Physical mapping arrangements
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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 signaling, i.e. of overhead other than pilot 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 signaling, 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
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
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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
- H04L5/0058—Allocation criteria
- H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/52—Allocation or scheduling criteria for wireless resources based on load
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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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
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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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/18—Interfaces between hierarchically similar devices between terminal devices
Definitions
- the present invention relates to a wireless communication system.
- a wireless communication system is a multiple access system that supports communication with multiple users by sharing available system resources (eg, bandwidth, transmission power, etc.).
- Examples of the multiple access system include a code division multiple access (CDMA) system, a frequency division multiple access (FDMA) system, a time division multiple access (TDMA) system, an orthogonal frequency division multiple access (OFDMA) system, and a single carrier frequency (SC-FDMA).
- CDMA code division multiple access
- FDMA frequency division multiple access
- TDMA time division multiple access
- OFDMA orthogonal frequency division multiple access
- SC-FDMA single carrier frequency division multiple access
- MC multi-carrier frequency division multiple access
- a sidelink refers to a communication method in which a direct link is established between user equipments (UEs) to directly transmit or receive voice or data between terminals without going through a base station (BS).
- the side link is considered as one method to solve the burden of the base station due to the rapidly increasing data traffic.
- V2X vehicle-to-everything means a communication technology that exchanges information with other vehicles, pedestrians, and infrastructure-built objects through wired / wireless communication.
- V2X can be divided into four types: vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-network (V2N), and vehicle-to-pedestrian (V2P).
- V2X communication may be provided through a PC5 interface and / or a Uu interface.
- RAT radio access technology
- NR new radio
- V2X Vehicle-to-everything
- the terminal may set a resource selection window (SW). For example, the terminal may select a selectable resource through a sensing process, and may select a resource within a set resource selection window. For example, the terminal may select a resource selection window for initial transmission based on an application's latency requirement and terminal's processing timing.
- the UE may be unable to satisfy the delay requirement due to the transmission timing of HARQ feedback.
- a method of operating the first device 100 in a wireless communication system includes determining a first area for selecting a resource related to transmission of sidelink information; And adjusting the first area to the second area based on information related to sidelink HARQ feedback.
- the terminal can efficiently perform sidelink communication.
- FIG. 1 shows a structure of an LTE system according to an embodiment of the present disclosure.
- FIG. 2 illustrates a radio protocol architecture for a user plane, according to an embodiment of the present disclosure.
- FIG. 3 shows a radio protocol architecture for a control plane according to an embodiment of the present disclosure.
- FIG. 4 shows a structure of an NR system according to an embodiment of the present disclosure.
- 5 illustrates functional division between NG-RAN and 5GC, according to an embodiment of the present disclosure.
- FIG. 6 shows a structure of an NR radio frame according to an embodiment of the present disclosure.
- FIG. 7 illustrates a slot structure of an NR frame according to an embodiment of the present disclosure.
- FIG 8 shows an example of a BWP, according to an embodiment of the present disclosure.
- FIG 9 illustrates a radio protocol architecture for sidelink communication, according to an embodiment of the present disclosure.
- FIG. 10 illustrates a radio protocol architecture for sidelink communication, according to an embodiment of the present disclosure.
- FIG. 11 illustrates a terminal performing V2X or sidelink communication according to an embodiment of the present disclosure.
- FIG. 12 illustrates a resource unit for V2X or sidelink communication according to an embodiment of the present disclosure.
- FIG. 13 shows a procedure for a terminal to perform V2X or sidelink communication according to a transmission mode (TM) according to an embodiment of the present disclosure.
- FIG. 14 illustrates a method for a terminal to select a transmission resource according to an embodiment of the present disclosure.
- FIG. 15 shows an example of a resource selection window set based on a processing timing of a terminal and a delay requirement of a packet to be transmitted by the terminal.
- FIG. 16 illustrates a procedure for a transmitting terminal to set a resource selection window based on information related to sidelink HARQ feedback according to an embodiment of the present disclosure.
- FIG. 17 shows an example in which a transmitting terminal selects or determines a resource selection window based on information related to sidelink HARQ feedback.
- FIG. 18 shows a procedure in which a receiving terminal selects or determines a resource selection window based on information related to feedback.
- FIG. 19 shows a method of determining a region for selecting a resource related to transmission of sidelink information by the first device 100 according to an embodiment of the present disclosure.
- FIG. 20 illustrates a method of determining a region for selecting a resource related to transmission of feedback corresponding to sidelink information by the second device 200 according to an embodiment of the present disclosure.
- 21 shows a communication system 1, according to one embodiment of the present disclosure.
- FIG. 22 illustrates a wireless device, according to an embodiment of the present disclosure.
- FIG. 23 shows a signal processing circuit for a transmission signal, according to an embodiment of the present disclosure.
- FIG. 24 illustrates a wireless device, according to an embodiment of the present disclosure.
- 25 illustrates a portable device according to an embodiment of the present disclosure.
- 26 illustrates a vehicle or an autonomous vehicle, according to an embodiment of the present disclosure.
- FIG. 27 illustrates a vehicle, according to one embodiment of the present disclosure.
- 29 illustrates a robot, according to an embodiment of the present disclosure.
- FIG 30 illustrates an AI device according to an embodiment of the present disclosure.
- “/” and “,” should be construed as representing “and / or”.
- “A / B” may mean “A and / or B”.
- “A, B” may mean “A and / or B”.
- “A / B / C” may mean “at least one of A, B, and / or C”.
- “A, B, and C” may mean “at least one of A, B, and / or C”.
- “or” should be interpreted to indicate “and / or”.
- “A or B” can include “only A”, “only B”, and / or “both A and B”.
- “or” should be interpreted to indicate “additionally or alternatively”.
- CDMA code division multiple access
- FDMA frequency division multiple access
- TDMA time division multiple access
- OFDMA orthogonal frequency division multiple access
- SC-FDMA single carrier frequency division multiple access
- CDMA may be implemented with a radio technology such as universal terrestrial radio access (UTRA) or CDMA2000.
- TDMA may be implemented with radio technologies 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 can be implemented with wireless technologies such as the Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, and Evolved UTRA (E-UTRA).
- IEEE Institute of Electrical and Electronics Engineers
- Wi-Fi Wi-Fi
- WiMAX IEEE 802.16
- IEEE 802-20 and Evolved UTRA
- IEEE 802.16m is an evolution of IEEE 802.16e, and provides backward compatibility with a system based on IEEE 802.16e.
- UTRA is part of a universal mobile telecommunications system (UMTS).
- 3rd generation partnership project (3GPP) long term evolution (LTE) is part of evolved UMTS (E-UMTS) using evolved-UMTS terrestrial radio access (E-UTRA), employing OFDMA in the downlink and SC in the uplink -Adopt FDMA.
- LTE-A (advanced) is an evolution of 3GPP LTE.
- 5G NR is the successor to LTE-A, and is a new clean-slate type mobile communication system with characteristics such as high performance, low latency, and high availability. 5G NR can utilize all available spectrum resources, from low frequency bands below 1 GHz to mid-frequency bands from 1 GHz to 10 GHz, and high frequency (millimeter wave) bands above 24 GHz.
- LTE-A or 5G NR is mainly described, but the technical spirit of the present disclosure is not limited thereto.
- E-UTRAN Evolved-UMTS Terrestrial Radio Access Network
- LTE Long Term Evolution
- the E-UTRAN includes a base station (BS) 20 that provides a control plane and a user plane to the terminal 10.
- the terminal 10 may be fixed or mobile, and may be referred to as other terms such as a mobile station (MS), a user terminal (UT), a subscriber station (SS), a mobile terminal (MT), and a wireless device.
- the base station 20 refers to a fixed station that communicates with the terminal 10, and may be referred to as other terms such as an evolved-NodeB (eNB), a base transceiver system (BTS), and an access point.
- eNB evolved-NodeB
- BTS base transceiver system
- the base stations 20 may be connected to each other through an X2 interface.
- the base station 20 is connected to an EPC (Evolved Packet Core 30) through an S1 interface, and more specifically, a mobility management entity (MME) through an S1-MME and a serving gateway (S-GW) through an S1-U.
- EPC Evolved Packet Core 30
- MME mobility management entity
- S-GW serving gateway
- EPC 30 is composed of MME, S-GW and P-GW (Packet Data Network-Gateway).
- the MME has access information of the terminal or information about the capability of the terminal, and this information is mainly used for mobility management of the terminal.
- S-GW is a gateway with E-UTRAN as an endpoint
- P-GW is a gateway with PDN (Packet Date Network) as an endpoint.
- the layers of the radio interface protocol between the terminal and the network are based on the lower three layers of the Open System Interconnection (OSI) reference model, which is widely known in communication systems, L1 (first layer), It can be divided into L2 (second layer) and L3 (third layer).
- OSI Open System Interconnection
- the physical layer belonging to the first layer provides an information transfer service using a physical channel
- the radio resource control (RRC) layer located in the third layer is a radio resource between the terminal and the network. It plays a role of controlling.
- the RRC layer exchanges RRC messages between the terminal and the base station.
- the 2 illustrates a radio protocol architecture for a user plane, according to an embodiment of the present disclosure.
- 3 shows a radio protocol architecture for a control plane according to an embodiment of the present disclosure.
- the user plane is a protocol stack for transmitting user data
- the control plane is a protocol stack for transmitting control signals.
- a physical layer provides an information transmission service to an upper layer using a physical channel.
- the physical layer is connected to the upper layer of the MAC (Medium Access Control) layer through a transport channel. Data moves between the MAC layer and the physical layer through the transport channel. Transmission channels are classified according to how and with what characteristics data is transmitted through a wireless interface.
- MAC Medium Access Control
- the physical channel can be modulated by an orthogonal frequency division multiplexing (OFDM) method, and utilizes time and frequency as radio resources.
- OFDM orthogonal frequency division multiplexing
- the MAC layer provides a service to a higher level RLC (radio link control) layer through a logical channel.
- the MAC layer provides a mapping function from a plurality of logical channels to a plurality of transport channels.
- the MAC layer provides a logical channel multiplexing function by mapping from a plurality of logical channels to a single number of transport channels.
- the MAC sub-layer provides data transmission services on logical channels.
- the RLC layer performs concatenation, segmentation, and reassembly of RLC Radio Link Control Service Data Unit (SDU).
- SDU Radio Link Control Service Data Unit
- the RLC layer has a transparent mode (TM), an unacknowledged mode (UM), and an acknowledgment mode (Acknowledged Mode).
- TM transparent mode
- UM unacknowledged mode
- Acknowledged Mode acknowledgment mode
- AM AM RLC provides error correction through automatic repeat request (ARQ).
- RRC Radio Resource Control
- the RRC layer is responsible for control of logical channels, transport channels, and physical channels in connection with configuration, re-configuration, and release of radio bearers.
- RB refers to a logical path provided by the first layer (PHY layer) and the second layer (MAC layer, RLC layer, Packet Data Convergence Protocol (PDCP) layer) for data transmission between the terminal and the network.
- PHY layer first layer
- MAC layer MAC layer
- RLC layer Packet Data Convergence Protocol (PDCP) layer
- the functions of the PDCP layer in the user plane include the transfer of user data, header compression, and ciphering.
- the functions of the PDCP layer in the control plane include the transfer of control plane data and encryption / integrity protection.
- the establishment of RB means a process of defining characteristics of a radio protocol layer and a channel to provide a specific service, and setting each specific parameter and operation method.
- the RB can be divided into two types: a signaling radio bearer (SRB) and a data radio bearer (DRB).
- SRB is used as a path for transmitting RRC messages in the control plane
- DRB is used as a path for transmitting user data in the user plane.
- the UE When an RRC connection is established between the RRC layer of the UE and the RRC layer of the E-UTRAN, the UE is in the RRC_CONNECTED state, otherwise it is in the RRC_IDLE state.
- the RRC_INACTIVE state is further defined, and the terminal in the RRC_INACTIVE state can release the connection with the base station while maintaining the connection with the core network.
- Downlink transport channels for transmitting data from a network to a terminal include a broadcast channel (BCH) for transmitting system information and a downlink shared channel (SCH) for transmitting user traffic or control messages.
- Traffic or control messages of a downlink multicast or broadcast service may be transmitted through a downlink SCH or may be transmitted through a separate downlink multicast channel (MCH).
- an uplink transmission channel for transmitting data from a terminal to a network includes a random access channel (RACH) for transmitting an initial control message and an uplink shared channel (SCH) for transmitting user traffic or a control message.
- RACH random access channel
- SCH uplink shared channel
- Logical channels that are located above the transport channel and are mapped to the transport channel include Broadcast Control Channel (BCCH), Paging Control Channel (PCCH), Common Control Channel (CCCH), Multicast Control Channel (MCCH), and Multicast Traffic (MTCH). Channel).
- BCCH Broadcast Control Channel
- PCCH Paging Control Channel
- CCCH Common Control Channel
- MCCH Multicast Control Channel
- MTCH Multicast Traffic
- the physical channel is composed of several OFDM symbols in the time domain and several sub-carriers in the frequency domain.
- One sub-frame (sub-frame) is composed of a plurality of OFDM symbols (symbol) in the time domain.
- the resource block is a resource allocation unit, and is composed of a plurality of OFDM symbols and a plurality of sub-carriers.
- each subframe may use specific subcarriers of specific OFDM symbols (eg, the first OFDM symbol) of a corresponding subframe for a physical downlink control channel (PDCCH), that is, an L1 / L2 control channel.
- TTI Transmission Time Interval
- FIG. 4 shows a structure of an NR system according to an embodiment of the present disclosure.
- Next Generation-Radio Access Network may include a next generation-Node B (gNB) and / or eNB that provides a user plane and a control plane protocol termination to a terminal.
- gNB next generation-Node B
- eNB that provides a user plane and a control plane protocol termination to a terminal.
- . 4 illustrates a case in which only the gNB is included.
- the gNB and the eNB are connected to each other by an Xn interface.
- the gNB and the eNB are connected through a 5G Core Network (5GC) and an NG interface. More specifically, AMF (access and mobility management function) is connected through an NG-C interface, and UPF (user plane function) is connected through an NG-U interface.
- AMF access and mobility management function
- UPF user plane function
- 5 illustrates functional division between NG-RAN and 5GC, according to an embodiment of the present disclosure.
- gNB is an inter-cell radio resource management (Inter Cell RRM), radio bearer management (RB control), connection mobility control (Connection Mobility Control), radio admission control (Radio Admission Control), measurement settings and provision It can provide functions such as (Measurement configuration & Provision), dynamic resource allocation, and the like.
- AMF can provide functions such as Non Access Stratum (NAS) security and idle state mobility processing.
- UPF may provide functions such as mobility anchoring (PDU) and protocol data unit (PDU) processing.
- the Session Management Function (SMF) may provide functions such as terminal IP (Internet Protocol) address allocation and PDU session control.
- FIG. 6 shows a structure of an NR radio frame according to an embodiment of the present disclosure.
- radio frames may be used for uplink and downlink transmission in NR.
- the radio frame has a length of 10 ms, and may be defined as two 5 ms half-frames (HFs).
- the half-frame may include 5 1ms subframes (Subframe, SF).
- the subframe may be divided into one or more slots, and the number of slots in the subframe may be determined according to a subcarrier spacing (SCS).
- SCS subcarrier spacing
- Each slot may include 12 or 14 OFDM (A) symbols according to a cyclic prefix (CP).
- each slot may include 14 symbols.
- each slot may include 12 symbols.
- the symbol may include an OFDM symbol (or CP-OFDM symbol), an SC-FDMA (Single Carrier-FDMA) symbol (or a DFT-s-OFDM (Discrete Fourier Transform-spread-OFDM) symbol).
- Table 1 shows the number of symbols per slot (N slot symb ), the number of slots per frame (N frame, u slot ) and the number of slots per subframe (N) when the normal CP is used. subframe, u slot ).
- Table 2 illustrates the number of symbols per slot, the number of slots per frame, and the number of slots per subframe according to the SCS when an extended CP is used.
- OFDM (A) numerology eg, SCS, CP length, etc.
- a numerology eg, SCS, CP length, etc.
- a (absolute time) section of a time resource eg, subframe, slot, or TTI
- TU Time Unit
- multiple numerology or SCS to support various 5G services can be supported. For example, if the SCS is 15 kHz, a wide area in traditional cellular bands can be supported, and if the SCS is 30 kHz / 60 kHz, dense-urban, lower delay Latency and wider carrier bandwidth can be supported. When the SCS is 60 kHz or higher, a bandwidth greater than 24.25 GHz may be supported to overcome phase noise.
- the NR frequency band can be defined as two types of frequency ranges.
- the two types of frequency ranges may be FR1 and FR2.
- the numerical value of the frequency range may be changed, and for example, the two types of frequency ranges may be as shown in Table 3 below.
- FR1 may mean "sub 6 GHz range”
- FR2 may mean “above 6 GHz range”
- mmW millimeter wave
- FR1 may include a band of 410MHz to 7125MHz as shown in Table 4 below. That is, FR1 may include a frequency band of 6 GHz (or 5850, 5900, 5925 MHz, etc.) or higher. For example, a frequency band of 6 GHz or higher (or 5850, 5900, 5925 MHz, etc.) included in FR1 may include an unlicensed band. The unlicensed band may be used for various purposes, for example, for communication for a vehicle (eg, autonomous driving).
- a slot includes a plurality of symbols in the time domain. For example, in the case of a normal CP, one slot includes 14 symbols, but in the case of an extended CP, one slot may include 12 symbols. Alternatively, in the case of a normal CP, one slot includes 7 symbols, but in the case of an extended CP, one slot may include 6 symbols.
- the carrier includes a plurality of subcarriers in the frequency domain.
- Resource block (RB) may be defined as a plurality of (eg, 12) consecutive subcarriers in the frequency domain.
- a BWP (Bandwidth Part) may be defined as a plurality of consecutive (P) RBs ((Physical) Resource Blocks) in the frequency domain, and may correspond to one numerology (eg, SCS, CP length, etc.). have.
- the carrier may include up to N (eg, 5) BWPs. Data communication can be performed through an activated BWP.
- Each element may be referred to as a resource element (RE) in the resource grid, and one complex symbol may be mapped.
- RE resource element
- BWP Bandwidth Part
- the Bandwidth Part may be a continuous set of physical resource blocks (PRBs) in a given new technology.
- the PRB can be selected from a contiguous subset of common resource blocks (CRBs) for a given numerology on a given carrier.
- CRBs common resource blocks
- the reception bandwidth and transmission bandwidth of the terminal need not be as large as the cell bandwidth, and the reception bandwidth and transmission bandwidth of the terminal can be adjusted.
- the network / base station may inform the terminal of bandwidth adjustment.
- the terminal may receive information / settings for bandwidth adjustment from the network / base station.
- the terminal may perform bandwidth adjustment based on the received information / setting.
- the bandwidth adjustment may include reducing / enlarging the bandwidth, changing the position of the bandwidth, or changing the subcarrier spacing of the bandwidth.
- bandwidth can be reduced during periods of low activity to save power.
- the location of the bandwidth can move in the frequency domain.
- the location of the bandwidth can be moved in the frequency domain to increase scheduling flexibility.
- the subcarrier spacing of the bandwidth can be changed.
- the subcarrier spacing of the bandwidth can be changed to allow different services.
- a subset of the cell's total cell bandwidth may be referred to as a Bandwidth Part (BWP).
- the BA may be performed by the base station / network setting the BWP to the terminal, and notifying the terminal of the currently active BWP among the BWPs in which the base station / network is set.
- the BWP may be at least one of an active BWP, an initial BWP, and / or a default BWP.
- the terminal may not monitor downlink radio link quality in a DL BWP other than an active DL BWP on a primary cell (PCell).
- the UE may not receive PDCCH, PDSCH, or CSI-RS (except RRM) from outside the active DL BWP.
- the UE may not trigger CSI (Channel State Information) reporting for the inactive DL BWP.
- the UE may not transmit PUCCH or PUSCH outside the active UL BWP.
- the initial BWP may be given as a continuous RB set for RMSI CORESET (set by PBCH).
- the initial BWP may be given by the SIB for a random access procedure.
- the default BWP can be set by a higher layer.
- the initial value of the default BWP may be an initial DL BWP. For energy saving, if the UE does not detect DCI for a period of time, the UE may switch the active BWP of the UE to the default BWP.
- the BWP may be defined for a side link.
- the same sidelink BWP can be used for transmission and reception.
- the transmitting terminal may transmit a sidelink channel or sidelink signal on a specific BWP
- the receiving terminal may receive a sidelink channel or sidelink signal on the specific BWP.
- the sidelink BWP may be defined separately from the Uu BWP, and the sidelink BWP may have separate configuration signaling from the Uu BWP.
- the terminal may receive settings for the sidelink BWP from the base station / network.
- the sidelink BWP may be set in advance for the out-of-coverage NR V2X terminal and the RRC_IDLE terminal in the carrier. For a terminal in RRC_CONNECTED mode, at least one sidelink BWP may be activated in a carrier.
- FIG. 8 shows an example of a BWP, according to an embodiment of the present disclosure. In the embodiment of Fig. 8, it is assumed that there are three BWPs.
- a common resource block may be a carrier resource block numbered from one end of the carrier band to the other end. Further, the PRB may be a resource block numbered within each BWP. Point A may indicate a common reference point for a resource block grid.
- the BWP can be set by point A, offset from point A (N start BWP ) and bandwidth (N size BWP ).
- point A may be an external reference point of the PRB of a carrier in which the subcarriers 0 of all pneumonologies (eg, all pneumonologies supported by the network in the corresponding carrier) are aligned.
- the offset may be the PRB interval between the lowest subcarrier and point A in a given numerology.
- the bandwidth may be the number of PRBs in a given numerology.
- V2X or sidelink communication will be described.
- FIG. 9 illustrates a radio protocol architecture for sidelink communication, according to an embodiment of the present disclosure. Specifically, FIG. 9 (a) shows the LTE user plane protocol stack, and FIG. 9 (b) shows the LTE control plane protocol stack.
- FIG. 10 illustrates a radio protocol architecture for sidelink communication, according to an embodiment of the present disclosure. Specifically, FIG. 10 (a) shows the NR user plane protocol stack, and FIG. 10 (b) shows the NR control plane protocol stack.
- SLSS Sidelink Synchronization Signal
- SLSS is a sidelink specific sequence, and may include a Primary Sidelink Synchronization Signal (PSSS) and a Secondary Sidelink Synchronization Signal (SSSS).
- PSSS Primary Sidelink Synchronization Signal
- SSSS Secondary Sidelink Synchronization Signal
- the PSSS may be referred to as a S-PSS (Sidelink Primary Synchronization Signal)
- S-SSS Sidelink Secondary Synchronization Signal
- the PSBCH Physical Sidelink Broadcast Channel
- the PSBCH may be a (broadcast) channel through which basic (system) information that the UE first needs to know before transmitting and receiving a sidelink signal is transmitted.
- the basic information includes information related to SLSS, Duplex Mode (DM), TDD Time Division Duplex Uplink / Downlink (UL / DL) configuration, resource pool related information, types of applications related to SLSS, It may be a subframe offset, broadcast information, and the like.
- S-PSS, S-SSS and PSBCH may be included in a block format supporting periodic transmission (eg, a sidelink SS (Synchronization Signal) / PSBCH block, hereinafter referred to as S-SSB (Sidelink-Synchronization Signal Block)).
- the S-SSB may have the same numerology (i.e., SCS and CP length) as the PSCCH (Physical Sidelink Control Channel) / PSSCH (Physical Sidelink Shared Channel) in the carrier, and the transmission bandwidth is (preset) SL BWP (Sidelink) set Bandwidth Part).
- the frequency position of the S-SSB can be set (in advance). Therefore, the UE does not need to perform hypothesis detection in frequency to discover the S-SSB in the carrier.
- Each SLSS may have a physical layer sidelink synchronization ID (identity), and the value may be any one of 0 to 335.
- a synchronization source may be identified.
- 0, 168, and 169 may refer to global navigation satellite systems (GNSS)
- 1 to 167 may refer to a base station
- 170 to 335 may mean outside of coverage.
- 0 to 167 of the values of the physical layer sidelink synchronization ID (identity) may be values used by the network
- 168 to 335 may be values used outside of network coverage.
- FIG. 11 illustrates a terminal performing V2X or sidelink communication according to an embodiment of the present disclosure.
- the term terminal may mainly mean a user terminal.
- the base station may also be regarded as a kind of terminal.
- Terminal 1 may operate to select a resource unit corresponding to a specific resource from a resource pool, which means a set of a set of resources, and to transmit a sidelink signal using the resource unit.
- Terminal 2 which is a receiving terminal, is configured with a resource pool through which terminal 1 can transmit signals, and can detect a signal from terminal 1 in the resource pool.
- the base station may inform the resource pool.
- another terminal may inform the resource pool or may be determined as a predetermined resource.
- a resource pool may be composed of a plurality of resource units, and each terminal may select one or a plurality of resource units and use it for transmission of its own sidelink signal.
- FIG. 12 illustrates a resource unit for V2X or sidelink communication according to an embodiment of the present disclosure.
- the total frequency resources of the resource pool may be divided into N F pieces, and the total time resources of the resource pool may be divided into N T pieces. Therefore, the total N F * N T resource units may be defined in the resource pool. 12 shows an example of a case in which the corresponding resource pool is repeated in a cycle of N T subframes.
- one resource unit (eg, Unit # 0) may appear periodically.
- an index of a physical resource unit to which one logical resource unit is mapped may change in a predetermined pattern according to time.
- a resource pool may mean a set of resource units that can be used for transmission by a terminal to transmit a sidelink signal.
- Resource pools can be subdivided into several types. For example, depending on the content of the sidelink signal transmitted from each resource pool, the resource pool may be classified as follows.
- Scheduling assignment is the location of a resource used by a transmitting terminal for transmission of a sidelink data channel, and Modulation and Coding Scheme (MCS) or Multiple Input Multiple required for demodulation of other data channels Output) may be a signal including information such as a transmission method and a TA (Timing Advance).
- MCS Modulation and Coding Scheme
- the SA may be multiplexed and transmitted together with sidelink data on the same resource unit.
- the SA resource pool may mean a resource pool in which SA is multiplexed with sidelink data and transmitted.
- the SA may also be called a sidelink control channel.
- a sidelink data channel may be a resource pool used by a transmitting terminal to transmit user data. If SAs are multiplexed and transmitted together with sidelink data on the same resource unit, only the sidelink data channel of the type excluding SA information can be transmitted from the resource pool for the sidelink data channel. In other words, Resource Elements (REs) used to transmit SA information on individual resource units in the SA resource pool can still be used to transmit sidelink data in the resource pool of the sidelink data channel.
- REs Resource Elements
- the discovery channel may be a resource pool for a transmitting terminal to transmit information such as its own ID. Through this, the transmitting terminal can make the adjacent terminal discover itself.
- a transmission timing determination method of a sidelink signal for example, whether it is transmitted at the time of reception of a synchronization reference signal or is applied by applying a certain timing advance at the time of reception
- Resource allocation method e.g., whether a base station designates a transmission resource of an individual signal to an individual transmission terminal or whether an individual transmission terminal selects an individual signal transmission resource in its own resource pool
- a signal format for example, Depending on the number of symbols that each sidelink signal occupies in one subframe, or the number of subframes used for transmission of one sidelink signal
- signal strength from a base station transmit power strength of a sidelink terminal, etc., back to a different resource pool It may be divided.
- FIG. 13 shows a procedure for a terminal to perform V2X or sidelink communication according to a transmission mode (TM) according to an embodiment of the present disclosure. Specifically, FIG. 13 (a) shows a terminal operation related to transmission mode 1 or transmission mode 3, and FIG. 13 (b) shows a terminal operation related to transmission mode 2 or transmission mode 4.
- the base station performs resource scheduling to UE 1 through PDCCH (more specifically, downlink control information (DCI)), and UE 1 according to the corresponding resource scheduling Performs side link / V2X communication with terminal 2.
- PDCCH more specifically, downlink control information (DCI)
- DCI downlink control information
- the terminal 1 may transmit data based on the SCI through the physical sidelink shared channel (PSSCH).
- PSSCH physical sidelink shared channel
- transmission mode 1 may be applied to general sidelink communication
- transmission mode 3 may be applied to V2X sidelink communication.
- the UE in the transmission mode 2/4, can schedule resources by itself. More specifically, in the case of LTE sidelink, the transmission mode 2 is applied to general sidelink communication, and the terminal may perform a sidelink operation by selecting a resource within a set resource pool by itself.
- the transmission mode 4 is applied to V2X sidelink communication, and the terminal may perform a V2X sidelink operation after selecting a resource within a selection window through a sensing / SA decoding process.
- the UE 1 After transmitting the SCI through the PSCCH to the UE 2, the UE 1 may transmit data based on the SCI through the PSSCH.
- the transmission mode may be abbreviated as mode.
- the base station can schedule sidelink resources to be used by the terminal for sidelink transmission.
- the terminal may determine a sidelink transmission resource within a sidelink resource set by a base station / network or a preset sidelink resource.
- the set sidelink resource or the preset sidelink resource may be a resource / resource pool.
- the terminal can autonomously select a sidelink resource for transmission.
- the UE can help select a sidelink resource for another UE.
- the terminal may be configured with an NR configured grant for sidelink transmission.
- the UE may schedule sidelink transmission of another UE.
- mode 2 may support reservation of at least sidelink resources for blind retransmission.
- the sensing procedure may be defined as decoding SCI from other terminals and / or sidelink measurements. Decoding the SCI in the sensing procedure may provide at least information on the sidelink resource indicated by the terminal transmitting the SCI. When the corresponding SCI is decoded, the sensing procedure may use L1 SL Reference Signal Received Power (RSRP) measurement based on SL Demodulation Reference Signal (DMRS). The resource (re) selection procedure may use the result of the sensing procedure to determine a resource for sidelink transmission.
- RSRP Reference Signal Received Power
- DMRS Demodulation Reference Signal
- FIG. 14 illustrates a method for a terminal to select a transmission resource according to an embodiment of the present disclosure.
- a terminal can identify transmission resources reserved by another terminal or resources used by another terminal through sensing within a sensing window, and after excluding it in a selection window, interference among remaining resources
- the resource can be randomly selected from this small resource.
- the UE may decode a PSCCH including information on a period of reserved resources, and measure PSSCH RSRP from resources periodically determined based on the PSCCH.
- the UE may exclude resources in which the PSSCH RSRP value exceeds a threshold within a selection window. Thereafter, the terminal may randomly select the sidelink resource among the remaining resources in the selection window.
- the terminal may determine the resources with little interference (for example, resources corresponding to the lower 20%) by measuring the received signal strength indicator (RSSI) of periodic resources in the sensing window. And, the terminal may randomly select a sidelink resource from among the resources included in the selection window among the periodic resources. For example, when the UE fails to decode the PSCCH, the UE may use the above method.
- RSSI received signal strength indicator
- HARQ hybrid automatic repeat request
- the error compensation technique for securing communication reliability may include a Forward Error Correction (FEC) scheme and an Automatic Repeat Request (ARQ) scheme.
- FEC Forward Error Correction
- ARQ Automatic Repeat Request
- an error at the receiving end can be corrected by adding an extra error correction code to information bits.
- the FEC method has the advantage of low time delay and no need for separate information to be transmitted and received between the transmitting and receiving terminals, but has a disadvantage in that system efficiency is poor in a good channel environment.
- the ARQ method can increase transmission reliability, but has a disadvantage that time delay occurs and system efficiency decreases in a poor channel environment.
- the HARQ (Hybrid Automatic Repeat Request) method is a combination of FEC and ARQ, and it is possible to increase performance by checking whether the data received by the physical layer contains an error that cannot be decoded and requesting retransmission when an error occurs.
- HARQ feedback and HARQ combining in the physical layer may be supported.
- the receiving terminal when the receiving terminal operates in resource allocation mode 1 or 2, the receiving terminal may receive a PSSCH from the transmitting terminal, and the receiving terminal may perform Sidelink Feedback Control Information (SFCI) through a Physical Sidelink Feedback Channel (PSFCH).
- SFCI Sidelink Feedback Control Information
- PSFCH Physical Sidelink Feedback Channel
- HARQ-ACK feedback for the PSSCH can be transmitted to the transmitting terminal using the format.
- the receiving terminal When sidelink HARQ feedback is enabled for unicast, in the case of non-CBG (non-Code Block Group) operation, if the receiving terminal successfully decodes the corresponding transport block, the receiving terminal can generate HARQ-ACK have. Then, the receiving terminal may transmit HARQ-ACK to the transmitting terminal. After the receiving terminal decodes the associated PSCCH targeting the receiving terminal, if the receiving terminal does not successfully decode the corresponding transport block, the receiving terminal may generate HARQ-NACK. Then, the receiving terminal may transmit HARQ-NACK to the transmitting terminal.
- CBG Non-Code Block Group
- the UE may determine whether to send HARQ feedback based on TX-RX distance and / or RSRP. For non-CBG operation, two options can be supported.
- Option 1 After the receiving terminal decodes the associated PSCCH, if the receiving terminal fails to decode the corresponding transport block, the receiving terminal may transmit HARQ-NACK on the PSFCH. Otherwise, the receiving terminal may not transmit a signal on the PSFCH.
- Option 2 If the receiving terminal successfully decodes the corresponding transmission block, the receiving terminal can transmit HARQ-ACK on the PSFCH. After the receiving terminal decodes the associated PSCCH targeting the receiving terminal, if the receiving terminal does not successfully decode the corresponding transport block, the receiving terminal may transmit HARQ-NACK on the PSFCH.
- the time between the HARQ feedback transmission on the PSFCH and the PSSCH can be set (in advance).
- this may be indicated to the base station by the terminal in coverage using PUCCH.
- the transmitting terminal may transmit an indication to the serving base station of the transmitting terminal in the form of SR (Scheduling Request) / BSR (Buffer Status Report) rather than HARQ ACK / NACK. Further, even if the base station does not receive the indication, the base station can schedule the sidelink retransmission resource to the terminal.
- the time between the HARQ feedback transmission on the PSFCH and the PSSCH can be set (in advance).
- FIG. 15 shows an example of a resource selection window set based on a processing timing of a terminal and a delay requirement of a packet to be transmitted by the terminal.
- the terminal may set a resource selection window, which is a time interval for allocating / selecting / determining resources related to transmission of sidelink information, to [n + T1, n + T2].
- n may indicate a time point for triggering resource selection.
- the terminal may receive the n value from the upper layer.
- the terminal may determine T1 based on the processing timing of the terminal, and may determine T2 based on the latency requirement of the sidelink packet to be transmitted by the terminal.
- the sidelink information may include at least one of sidelink data, sidelink control information, sidelink service, and / or sidelink packets.
- the terminal may perform HARQ feedback to satisfy the high reliability of the enhanced service.
- the terminal selects or determines a resource selection window for initial transmission related to sidelink information based on delay requirements related to sidelink information and processing timing of the terminal, the sidelink may be generated due to the transmission time of HARQ feedback. All transmissions up to the last transmission can be difficult to meet the service delay requirement.
- the terminal may set the T2 value based on the delay requirement. For example, the terminal may set the T2 value to 40 ms.
- the terminal may set [n + T1, n + T2], which is the range of the resource selection window, to [4ms, 40ms].
- the terminal may select a 30ms resource after the sensing operation.
- the terminal may retransmit the sidelink information. For example, when the terminal selects a resource for retransmission, the terminal may select a resource in a time domain exceeding the delay requirement of 50 ms. Therefore, when retransmission for sidelink information is expected, the terminal needs to set a resource selection window for initial transmission relatively short.
- the terminal within the time domain in the front part of the existing resource selection window (for example, the resource selection window set based on the processing requirements of the terminal and the delay requirements related to sidelink information), the terminal is the first time associated with the sidelink information
- a resource for transmission may be selected or determined, and the terminal may satisfy a delay requirement of sidelink information.
- the UE re-transmits parameters (eg, maximum retransmission count, default retransmission count, or HARQ round trip time (RTT), etc.), channel status, and / or
- a resource selection window for initial transmission may be set and adjusted based on parameters related to service QoS (eg, service priority, support conditions, and reliability).
- the resource selection window may be a time period for allocating / selecting / determining resources related to transmission of sidelink information.
- T1 the minimum value of the resource selection window
- T2 the minimum value of the resource selection window
- the HARQ RTT receives a HARQ feedback (eg, HARQ-NACK) corresponding to the initial transmission from a time when the transmitting terminal performs the initial transmission related to the sidelink information, and then side It may be a time it takes to perform a retransmission related to link information.
- HARQ RTT may be the sum of the first HARQ RTT and the second HARQ RTT.
- the first HARQ RTT may be a time taken from a time when a transmitting terminal performs initial transmission related to sidelink information to a time when HARQ feedback (for example, HARQ-NACK) corresponding to the initial transmission is received. have.
- the second HARQ RTT may be a time taken from a time when a transmitting terminal receives HARQ feedback (eg, HARQ-NACK) corresponding to the initial transmission to a time when retransmission related to sidelink information is performed.
- the terminal may determine or adjust the resource selection window based on the first HARQ RTT and / or the second HARQ RTT.
- the maximum number of retransmissions may be the maximum number of times a transmitting terminal can retransmit sidelink information.
- the transmitting terminal may set or assume the maximum number of retransmissions (in advance).
- the maximum number of retransmissions may be referred to as MAX_RETX.
- the transmitting terminal may determine or set the maximum number of retransmissions based on the resource selection window and HARQ RTT.
- the transmitting terminal may determine or set the maximum number of retransmissions according to a service type or service QoS related requirements (eg, delay requirements, reliability, or priority).
- the transmitting terminal may signal the maximum number of retransmissions defined (in advance) from the upper layer or the network. For example, if the transmitting terminal is unable to retransmit the data as many times as the maximum number of retransmissions signaled from the upper layer or the network within the time interval of the resource selection window, the transmitting terminal uses the existing maximum retransmission number based on the resource selection window and HARQ RTT. It can be changed or set to the determined maximum number of retransmissions. For example, the maximum number of retransmissions set by the transmitting terminal (in advance) or the maximum number of retransmissions that the terminal can actually perform may be referred to as MAX_RETX_ACT or the first maximum number of retransmissions.
- MAX_RETX defined (in advance) from the upper layer or the network may be referred to as MAX_RETX_NET or the second maximum number of retransmissions.
- the transmitting terminal may determine or set the maximum number of retransmissions as the second maximum number of retransmissions.
- the transmitting terminal may determine or set the floor ((T2-T1) / HARQ RTT) value as the first maximum retransmission number. have.
- the default number of retransmissions may be the number of times that a transmitting terminal must retransmit sidelink information.
- the default number of retransmissions may be referred to as DEF_RETX.
- DEF_RETX 4
- information related to HARQ feedback may include parameters related to HARQ feedback.
- parameters related to HARQ feedback may be signaled from a higher layer or a network or received from another terminal through a predefined channel.
- the transmitting terminal may transmit parameters related to HARQ feedback to another terminal.
- the terminal may set or define parameters related to HARQ feedback as the capability of the terminal.
- each terminal may set or define parameters related to HARQ feedback according to the capability of the terminal.
- FIG. 16 illustrates a procedure for a transmitting terminal to set a resource selection window based on information related to sidelink HARQ feedback according to an embodiment of the present disclosure.
- the transmitting terminal may select or determine a resource selection window. For example, the transmitting terminal may select or determine a resource selection window based on the delay requirement of sidelink information and the processing timing of the transmitting terminal. For example, the transmitting terminal may determine whether sidelink HARQ feedback is required. For example, before the initial transmission of sidelink information, the transmitting terminal may determine that sidelink HARQ feedback is necessary when a specific condition is satisfied. For example, when the transmitting terminal determines that sidelink HARQ feedback is necessary, the transmitting terminal may adjust or change the selected or determined resource selection window based on the information related to the sidelink HARQ feedback.
- the transmitting terminal is a type of cast (eg, unicast, groupcast or broadcast), information related to channel status, the capability of the transmitting terminal or the priority and / or reliability of sidelink information to be transmitted. It may be determined whether sidelink HARQ feedback is required based on at least one of the above.
- the information related to the channel state may include channel busy ratio (CBR) information and / or side link channel state information (CSI) information.
- the transmitting terminal may determine that sidelink HARQ feedback is necessary when the CBR measured by the UE is higher than a preset threshold.
- the sidelink CSI information may include information related to a channel or interference state between a transmitting terminal and a receiving terminal.
- sidelink CSI information includes channel quality indicator (CQI), precoding matrix indicator (PMI), rank indicator (RI), reference signal received power (RSRP), reference signal received quality (RSRQ), path gain / path loss (pathgain / pathloss), a sounding reference signal (SRI) resource indicator (SRI), a CSI-RS resource indicator (CRI), an interference condition, or vehicle motion.
- CQI channel quality indicator
- PMI precoding matrix indicator
- RI rank indicator
- RSRP reference signal received power
- RSRQ reference signal received quality
- path gain / path loss pathgain / pathloss
- SRI sounding reference signal
- SRI sounding reference signal
- CRI CSI-RS resource indicator
- an interference condition or vehicle motion.
- the transmitting terminal may determine that sidelink HARQ feedback is necessary. For example, whether sidelink HARQ feedback is required for specific sidelink information from a higher layer or a network may be signaled to a transmitting terminal.
- the information related to the sidelink HARQ feedback
- the transmitting terminal may transmit sidelink information to the receiving terminal using resources in the selected or determined resource selection window.
- the transmitting terminal may receive HARQ feedback related to sidelink information from the receiving terminal.
- the sidelink HARQ feedback may include HARQ-ACK or HARQ-NACK.
- the transmitting terminal may transmit sidelink information to the receiving terminal by using a resource after the selected or determined resource selection window. For example, when the transmitting terminal receives HARQ-NACK from the receiving terminal, the transmitting terminal may retransmit the sidelink information to the receiving terminal using resources after the selected or determined resource selection window. For example, after receiving the sidelink HARQ feedback, the transmitting terminal may newly select or determine the resource selection window.
- FIG. 17 shows an example in which a transmitting terminal selects or determines a resource selection window based on information related to sidelink HARQ feedback.
- the transmitting terminal may set the T1 value and / or T2 value of the resource selection window based on the processing timing of the transmitting terminal and the delay requirement of the service to be transmitted.
- the transmitting terminal may adjust the set T1 value and / or T2 value.
- the transmitting terminal may adjust or change the set T1 value and / or T2 value based on the HARQ RTT and the maximum number of retransmissions allowed.
- the transmitting terminal may adjust or change the T1 value and / or T2 value set based on the HARQ RTT and the default number of retransmissions.
- T2 ' may be a value in which the set T2 value is changed.
- the T2 'value may be adjusted according to various embodiments of the present disclosure.
- T2 ' may be determined by Equation 1 or Equation 2 below.
- MIN_RTT may be a minimum allowable time of HARQ RTT.
- MAX_RETX may be the maximum number of retransmissions defined above.
- MAX_RETX may be MAX_RETX_NET or MAX_RETX_ACT.
- MAX_RETX may be substituted or changed to a default number of retransmissions.
- the transmitting terminal may determine how many retransmissions are possible based on HARQ RTT in the resource selection window based on the HARQ RTT and the maximum number of retransmissions allowed. For example, the transmitting terminal may determine how many retransmissions are possible based on HARQ RTT in the resource selection window selected or determined using Equation 1 or Equation 2.
- T2 ' may be determined by Equation 3 or Equation 4 below.
- MAX_RTT may be the maximum allowable time of HARQ RTT.
- MAX_RETX may be the maximum number of retransmissions defined above.
- MAX_RETX may be MAX_RETX_NET or MAX_RETX_ACT.
- MAX_RETX may be substituted or changed to a default number of retransmissions.
- the transmission terminal sets a maximum allowed time of HARQ RTT to manage transmission of sidelink information.
- a transmitting terminal selects a front resource as a transmission resource in a resource selection window to initially transmit sidelink information
- the receiving terminal performs a short HARQ RTT. Satisfied and can perform sidelink HARQ feedback.
- the transmitting terminal can select a resource related to retransmission of sidelink information (eg, a resource to retransmit sidelink information in response to receiving HARQ-NACK) within HARQ RTT.
- a resource related to retransmission of sidelink information eg, a resource to retransmit sidelink information in response to receiving HARQ-NACK
- the transmitting terminal may not be able to select a resource related to retransmission of sidelink information within a minimum allowable time of HARQ RTT (for example, a resource to retransmit sidelink information in response to receiving HARQ-NACK). Since the transmitting terminal must perform transmission from the first transmission to the retransmission within the maximum allowable time of HARQ RTT, the transmitting terminal can adjust the resource selection window based on the maximum allowable time of HARQ RTT.
- T2 ' may be determined by Equation 5 or Equation 6 below.
- MIN_RTT may be a minimum allowable time of HARQ RTT.
- a may be a maximum time value that can be delayed from MIN_RTT.
- a may be a value (in advance) mapped to a service or a parameter related to QoS of a service (eg, priority of service, support condition or reliability of service), or a value (in advance) linked.
- a may be set (in advance) for a transmitting terminal from a higher layer or network.
- MAX_RETX may be the maximum number of retransmissions defined above.
- MAX_RETX may be MAX_RETX_NET or MAX_RETX_ACT.
- MAX_RETX may be substituted or changed to a default number of retransmissions.
- the transmitting terminal may set HARQ RTT to MIN_RTT to adjust the T2 value, and the transmitting terminal may set the maximum allowable delay value (MAX_RTT) per HARQ RTT to delay the MIN_RTT. Thereafter, the transmitting terminal may adjust or change the T2 value based on the MIN_RTT value reflecting the maximum delay value.
- MAX_RTT maximum allowable delay value
- the transmitting terminal may adjust or change the selected or determined resource selection window based on the channel state measured by itself. For example, the transmitting terminal may determine whether information (eg, CBR) related to the channel state measured by the UE is within a preset range. When the information related to the channel state falls within a preset range, the transmitting terminal may determine that sidelink HARQ feedback is necessary. For example, when the transmitting terminal determines that sidelink HARQ feedback is required, the transmitting terminal may adjust or change T2 of the selected or determined resource selection window. For example, the transmitting terminal may set the T2 value of the resource selection window mapped with information (eg, CBR) related to the channel state measured by itself.
- information eg, CBR
- the transmitting terminal may adjust or change the T2 of the selected or determined resource selection window to a T2 value mapped to information (for example, CBR) related to the channel state measured by itself.
- the transmitting terminal may be signaled from the upper layer or the network, the T2 value mapped to a range of channel measurement information, and the transmitting terminal may signal the T2 of the selected or determined resource selection window as the signaled T2 value. Can be adjusted or changed.
- the transmitting terminal may adjust the resource selection window based on the priority of the sidelink information to be transmitted and / or the reliability information of the sidelink information to be transmitted. For example, if the priority of sidelink information to be transmitted and / or the required reliability of sidelink information to be transmitted is relatively high, the transmitting terminal may need sidelink HARQ feedback to satisfy the high priority or reliability.
- T2 value of the selected or determined resource selection window may be adjusted.
- the transmitting terminal may set a T2 value mapped to information related to priority or reliability information.
- the transmitting terminal may adjust or change T2 of the selected or determined resource selection window to a T2 value mapped to information related to priority or reliability information.
- the transmitting terminal may signal a T2 value set from an upper layer or a network based on priority-related information or reliability information, and the transmitting terminal may set T2 of the selected or determined resource selection window as the signaled T2 value. It can be adjusted or changed.
- the transmitting terminal may adjust the resource selection window based on the capability of the terminal.
- the transmitting terminal may set the T2 value of the resource selection window based on parameters related to the capability of the terminal.
- parameters related to the capabilities of the UE include OFDM numerology (eg, subcarrier spacing), DMRS pattern (eg, DMRS is the front end of a time slot of a transmission slot) Whether it is placed on).
- the transmitting terminal may set the T2 value of the resource selection window to a preset T2 value.
- the preset T2 value may be a relatively smaller T2 value.
- the transmitting terminal may signal a T2 value set from an upper layer or a network based on the capability of the transmitting terminal, and the transmitting terminal may adjust or change T2 of the selected or determined resource selection window to the signaled T2 value. You can.
- the transmitting terminal may determine the T2 'value of the resource selection window based on some or various combinations of the above-described methods 1 to 6.
- the transmitting terminal may set the T2 value of the resource selection window to half of the resource selection window (ie, (T2-T1) / 2).
- the transmitting terminal may receive HARQ feedback after initially transmitting sidelink information within the set resource selection window.
- the transmitting terminal may limit the maximum value of the resource selection window to (T2-T1) / k or (T2-T1) / 2 for a predefined service.
- the transmitting terminal may preset or define the T2 value of the resource selection window as (T2-T1) / k.
- T2-T1 the resource selection window
- k may be set differently according to various conditions.
- the transmitting terminal may set the k value based on the channel state measured by itself.
- the transmitting terminal may set a k value linked to the CBR measured by the transmitting terminal.
- the transmitting terminal may select or determine a small value of k to prevent collision when selecting resources between a plurality of terminals. Therefore, the transmitting terminal can select a resource in a resource selection window wider than the existing resource selection window.
- the transmitting terminal may largely select or determine a k value. Therefore, the transmitting terminal can select a resource in a resource selection window narrower than the existing resource selection window, and then the transmitting terminal can broadly select or determine a resource selection window for selecting retransmission resources based on HARQ feedback.
- the transmitting terminal may set the k value based on priority and / or reliability information of sidelink information to be transmitted.
- the upper layer or the network may preset or define mapping information of sidelink information to be transmitted.
- the mapping information may be information related to a k value mapped to a QoS parameter (eg, priority and / or reliability) of sidelink information to be transmitted.
- the transmitting terminal may set the resource selection window related to the service A to a relatively short range based on the mapping information of the service A.
- the transmitting terminal may set the k value based on the capability of the terminal.
- the physical format of the transmitting terminal may be different according to the capability of the transmitting terminal.
- the transmitting terminal may support sub-carrier spacing having a large value or URLLC through a DMRS pattern. Therefore, the transmitting terminal may consider retransmission of sidelink information based on the capability of the terminal.
- the transmitting terminal may set a relatively narrow resource selection window in the initial transmission of sidelink information by setting the k value to a large value.
- the transmitting terminal may set the k value based on the maximum number of retransmissions or the default number of retransmissions. For example, the transmitting terminal may set the k value to the maximum number of retransmissions or the default number of retransmissions. However, for example, when the transmitting terminal sets the value of k as the maximum number of retransmissions for a narrow resource selection window, a T2 'value that exceeds the T1 value of the narrow resource selection window may be derived. Therefore, the transmitting terminal may set the k value to the maximum number of retransmissions or the default number of retransmissions for a sufficiently large resource selection window.
- a sufficiently large resource selection window may be a resource selection window that is equal to or greater than a range value of a predefined resource selection window.
- the transmission terminal may set the k value to the maximum number of retransmissions or the default number of retransmissions.
- the transmitting terminal may set the k value based on at least one of priority and / or reliability information of sidelink information to be transmitted, capability of the terminal, maximum retransmission times, or default retransmission times.
- the transmitting terminal may switch to a bandwidth part (BWP) or a transmission resource pool having different numerology to satisfy a delay requirement according to sidelink HARQ feedback. For example, after the first transmission of sidelink information, the transmitting terminal may receive HARQ-NACK related to the sidelink information and retransmit the sidelink information. The transmitting terminal may determine that the delay requirement cannot be satisfied due to retransmission of the sidelink information. In this case, the transmitting terminal may switch to a bandwidth part (BWP) or a transmission resource pool having different numerology.
- BWP bandwidth part
- a transmission resource pool having different numerology For example, after the first transmission of sidelink information, the transmitting terminal may receive HARQ-NACK related to the sidelink information and retransmit the sidelink information. The transmitting terminal may determine that the delay requirement cannot be satisfied due to retransmission of the sidelink information. In this case, the transmitting terminal may switch to a bandwidth part (BWP) or a transmission resource pool having different numerology.
- the receiving terminal may not satisfy the delay requirement requested by the feedback information.
- the receiving terminal may receive sidelink information transmitted by the transmitting terminal, and select or determine a resource selection window for sidelink information to be transmitted by itself.
- the receiving terminal can transmit (eg, PSCCH / PSSCH piggyback type) sidelink information including feedback information (eg, sidelink HARQ feedback information or CSI feedback information) to be transmitted to the transmitting terminal. have.
- the receiving terminal may not be able to transmit the piggybacked feedback information to the transmitting terminal within a predetermined time.
- a method of setting a resource selection window based on information related to feedback by the receiving terminal will be described.
- FIG. 18 shows a procedure in which a receiving terminal selects or determines a resource selection window based on information related to feedback.
- the receiving terminal may receive sidelink information from the transmitting terminal.
- the sidelink information may include at least one of sidelink data, sidelink control information, sidelink service, and / or sidelink packets.
- the receiving terminal may select or determine a resource selection window. For example, the receiving terminal may adjust its resource selection window based on information related to feedback corresponding to sidelink information transmitted by the transmitting terminal.
- the feedback may include sidelink HARQ feedback or CSI feedback.
- the receiving terminal may adjust its resource selection window based on the sidelink HARQ feedback or CSI feedback.
- the receiving terminal may set the transmission delay requirement of the sidelink packet in consideration of the delay requirement of the sidelink service requested by the application and the delay requirement of each feedback information together. For example, the receiving terminal may determine the transmission delay requirement of the sidelink packet based on the delay requirement of the sidelink service requested by the application and the delay requirement of each feedback information. For example, if the delay requirement of the sidelink service to be transmitted by the receiving terminal is 100ms and the delay requirement of the feedback information is 50ms, the receiving terminal sets the delay requirement of the sidelink packet to the minimum value of 50ms, which is the minimum value of the two delay requirements. Can decide.
- information related to feedback may include at least one of various information having different delay conditions, types of feedback, or QoS parameters related to feedback.
- the sidelink HARQ feedback information corresponding to the sidelink information received by the receiving terminal from the transmitting terminal and the CSI feedback information reporting the channel status may be piggybacked to sidelink control information or sidelink data to be transmitted by the receiving terminal.
- the receiving terminal may determine the delay requirement of the sidelink packet as a delay requirement having a minimum value among delay requirements associated with sidelink HARQ feedback information and delay requirements associated with CSI feedback information.
- the delay requirement of the sidelink service and / or the delay requirement of the feedback information may be set or defined (in advance) in a higher layer or network.
- the receiving terminal may determine a delay requirement for transmitting sidelink information and / or feedback information based on information (eg, QoS parameter) transmitted from a higher layer.
- the QoS parameter may include priority information and / or reliability information.
- the upper layer or the network may determine the delay requirement of the sidelink packet based on the delay requirement of the sidelink service and / or the delay requirement of the feedback information. Thereafter, the upper layer or the network may inform the receiving terminal of the determined delay request of the sidelink packet through QoS parameters or RRC signaling. Alternatively, for example, the upper layer or the network may inform the receiving terminal of the delay requirement of the sidelink service and the delay requirement of the feedback information through QoS parameters or RRC signaling, respectively.
- the receiving terminal may determine the delay requirement of the sidelink packet based on the delay requirement of the service and the delay requirement of the feedback information, and select or determine the resource selection window based on the determined delay requirement of the sidelink packet. have.
- the receiving terminal selects or determines a resource selection window based on the delay requirement of the sidelink service, and when there is feedback information to be transmitted together at the time of transmission of the current receiving terminal, the receiving terminal selects the selected or determined resource You can adjust or reset the window. More specifically, for example, when the delay requirement of the sidelink service to be transmitted by the receiving terminal is 100 ms, the receiving terminal may select or determine a resource selection window to satisfy 100 ms according to the resource selection window process. Thereafter, if the receiving terminal determines that there is feedback information that requires less delay requirements, the receiving terminal may additionally adjust or reset the selected or determined resource selection window to satisfy the delay requirement of the feedback information.
- the receiving terminal may piggyback the plurality of feedback information to the sidelink information at the same time.
- the receiving terminal may select or determine the resource selection window based on the delay requirements of the plurality of feedback information. For example, when there is a receiving terminal and a plurality of transmitting terminals (eg, A, B), the receiving terminal performs feedback to both the transmitting terminal A and the transmitting terminal B, and receives each feedback information from the side of the receiving terminal. It is possible to piggyback on the transmission of link information (for example, PSCCH transmission or PSSCH transmission).
- link information for example, PSCCH transmission or PSSCH transmission.
- the receiving terminal may select or determine a resource selection window based on information related to feedback for the transmitting terminal A and information related to feedback for the transmitting terminal B. For example, if the delay requirement of the feedback information for the transmitting terminal A is X1, the delay requirement of the feedback information for the transmitting terminal B is X2, and the delay requirement of the sidelink information of the receiving terminal is X3, reception is performed.
- the terminal may determine min (X1, X2, X2) as the final delay requirement.
- the receiving terminal may select or determine a resource selection window based on the determined final delay requirement.
- the receiving terminal may select or determine a resource selection window according to the type of feedback information fed back to the transmitting terminal.
- the CSI feedback information may include RI, PMI, and CQI.
- the receiving terminal may feed back the CSI feedback information to the transmitting terminal at a longer period due to the long term fading of the channel.
- the receiving terminal may feedback the CSI feedback information to the transmitting terminal in a shorter period.
- a long term CSI may mean information having a relatively long reporting period, a change in RSRP or RSRQ, or a metric using RSRP or RSRQ.
- a short term CSI may be information (for example, PMI) that changes relatively rapidly according to a channel change.
- the receiving terminal may need to report PMI in a short term. Therefore, the delay requirement may be different depending on the type of feedback information.
- the receiving terminal may signal different delay requirements for each feedback information.
- the receiving terminal may select or determine a resource selection window based on the type of feedback information piggybacked on the transmission of sidelink information. For example, if the PMI information is a short term CSI, the receiving terminal piggybacks the PMI information to the transmission of sidelink information, and the delay requirement of the sidelink information supports the short period required by the PMI information. Can be set to Thereafter, the receiving terminal may select or determine a resource selection window based on a short period required by the PMI information. Or, for example, the receiving terminal selects or determines the resource selection window based on the delay requirement of the sidelink information, and the receiving terminal additionally adjusts the selected or determined resource selection window to support the short period required by the PMI information. Or you can change it.
- the receiving terminal may transmit feedback information to the transmitting terminal.
- the feedback information is sidelink HARQ feedback information
- the receiving terminal may re-receive the sidelink information from the transmitting terminal.
- the feedback information is HARQ-NACK
- the receiving terminal may re-receive the sidelink information from the transmitting terminal.
- FIG. 19 shows a method of determining a region for selecting a resource related to transmission of sidelink information by the first device 100 according to an embodiment of the present disclosure.
- the first device 100 may determine a first area for selecting a resource related to transmission of sidelink information.
- the first area may be a resource selection window.
- the sidelink information may include at least one of sidelink data, sidelink control information, sidelink service, and / or sidelink packets.
- the first device 100 may adjust the first area to the second area based on information related to sidelink HARQ feedback.
- the second area may be a resource selection window.
- the information related to the sidelink HARQ feedback may include at least one of the maximum number of retransmissions, the default number of retransmissions, or HARQ round trip time (RTT).
- the HARQ RTT receives sidelink HARQ feedback corresponding to the initial transmission from the time when the first device 100 performs the initial transmission related to the sidelink information, and then performs retransmission related to the sidelink information. It can be a time taken up to a point.
- the maximum number of retransmissions may be the maximum number of times that the first device 100 can retransmit sidelink information.
- the default number of retransmissions may be the number of times that the first device 100 should retransmit sidelink information.
- the first device 100 may determine whether sidelink HARQ feedback is required. When the first device 100 determines that the sidelink HARQ feedback is necessary, the first device 100 may adjust the first area to the second area based on the information related to the sidelink HARQ feedback. For example, the first device 100 may include a cast type, information related to a channel state, information related to the capability of the first device 100 or priority information related to the sidelink information, and the sidelink information. It may be determined whether the sidelink HARQ feedback is required based on at least one of the reliability information associated with.
- the first device 100 may transmit the sidelink information to the second device 200 using resources in the second area.
- FIG. 20 illustrates a method of determining a region for selecting a resource related to transmission of feedback corresponding to sidelink information by the second device 200 according to an embodiment of the present disclosure.
- the second device 200 may receive sidelink information from the first device 100.
- the second device 200 may determine a first area for selecting a resource related to transmission of feedback corresponding to the sidelink information based on the information related to the feedback.
- the sidelink information may include at least one of sidelink data, sidelink control information, sidelink service, and / or sidelink packets.
- the feedback may be sidelink HARQ feedback or CSI feedback.
- the first area may be a resource selection window.
- the information related to feedback may include at least one of a delay requirement of feedback, a type of feedback, or QoS parameters related to feedback.
- the second device 200 may transmit feedback to the first device 100 using resources in the first area.
- the second device 200 when the second device 200 piggybacks the feedback to the sidelink information to be transmitted by the second device 200, the second device 200 sets the minimum value among the delay requirement of the sidelink information and the delay requirement of the feedback.
- the first region may be determined based on the delay requirement.
- the second device 200 determines the first area based on the sidelink information to be transmitted by the second device 200, and based on the information related to feedback corresponding to the sidelink information received from the first device 100. The first area can be adjusted to the second area.
- the examples of the proposed method described above may also be included as one of the implementation methods of the present disclosure, and thus may be regarded as a kind of proposed methods. Further, the above-described proposed schemes may be implemented independently, but may also be implemented in a combination (or merge) form of some suggested schemes. Whether or not the proposed methods are applied (or information on rules of the proposed methods), the base station notifies the terminal or the transmitting terminal through a predefined signal (eg, a physical layer signal or a higher layer signal). Rules can be defined.
- a predefined signal eg, a physical layer signal or a higher layer signal.
- 21 shows a communication system 1, according to one embodiment of the present disclosure.
- a communication system 1 to which various embodiments of the present disclosure are applied includes a wireless device, a base station, and a network.
- the wireless device means a device that performs communication using a wireless access technology (eg, 5G NR (New RAT), Long Term Evolution (LTE)), and may be referred to as a communication / wireless / 5G device.
- a wireless access technology eg, 5G NR (New RAT), Long Term Evolution (LTE)
- LTE Long Term Evolution
- the wireless device includes a robot 100a, a vehicle 100b-1, 100b-2, an XR (eXtended Reality) device 100c, a hand-held device 100d, and a home appliance 100e. ), An Internet of Thing (IoT) device 100f, and an AI device / server 400.
- IoT Internet of Thing
- the vehicle may include a vehicle equipped with a wireless communication function, an autonomous driving vehicle, a vehicle capable of performing inter-vehicle communication, and the like.
- the vehicle may include a UAV (Unmanned Aerial Vehicle) (eg, a drone).
- XR devices include Augmented Reality (AR) / Virtual Reality (VR) / Mixed Reality (MR) devices, Head-Mounted Device (HMD), Head-Up Display (HUD) provided in vehicles, televisions, smartphones, It may be implemented in the form of a computer, wearable device, home appliance, digital signage, vehicle, robot, or the like.
- the mobile device may include a smart phone, a smart pad, a wearable device (eg, a smart watch, smart glasses), a computer (eg, a notebook, etc.).
- Household appliances may include a TV, a refrigerator, and a washing machine.
- IoT devices may include sensors, smart meters, and the like.
- the base station and the network may also be implemented as wireless devices, and the specific wireless device 200a may operate as a base station / network node to other wireless devices.
- the wireless devices 100a to 100f may be connected to the network 300 through the base station 200.
- AI Artificial Intelligence
- the network 300 may be configured using a 3G network, a 4G (eg, LTE) network, or a 5G (eg, NR) network.
- the wireless devices 100a to 100f may communicate with each other through the base station 200 / network 300, but may directly communicate (e.g. sidelink communication) without going through the base station / network.
- the vehicles 100b-1 and 100b-2 may perform direct communication (e.g. Vehicle to Vehicle (V2V) / Vehicle to everything (V2X) communication).
- the IoT device eg, sensor
- the IoT device may directly communicate with other IoT devices (eg, sensors) or other wireless devices 100a to 100f.
- Wireless communication / connections 150a, 150b, and 150c may be achieved between the wireless devices 100a to 100f / base station 200 and the base station 200 / base station 200.
- the wireless communication / connection is various wireless access such as uplink / downlink communication 150a and sidelink communication 150b (or D2D communication), base station communication 150c (eg relay, IAB (Integrated Access Backhaul)). It can be achieved through technology (eg, 5G NR), and wireless devices / base stations / wireless devices, base stations and base stations can transmit / receive radio signals to each other through wireless communication / connections 150a, 150b, 150c.
- the wireless communication / connections 150a, 150b, 150c can transmit / receive signals over various physical channels.
- various signal processing processes eg, channel encoding / decoding, modulation / demodulation, resource mapping / demapping, etc.
- resource allocation processes e.g., resource allocation processes, and the like.
- FIG. 22 illustrates a wireless device, according to an embodiment of the present disclosure.
- the first wireless device 100 and the second wireless device 200 may transmit and receive wireless signals through various wireless access technologies (eg, LTE and NR).
- ⁇ the first wireless device 100, the second wireless device 200 ⁇ is ⁇ wireless device 100x, base station 200 ⁇ and / or ⁇ wireless device 100x), wireless device 100x in FIG. ⁇ .
- the first wireless device 100 includes one or more processors 102 and one or more memories 104, and may further include one or more transceivers 106 and / or one or more antennas 108.
- the processor 102 controls the memory 104 and / or transceiver 106 and may be configured to implement the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein.
- the processor 102 may process information in the memory 104 to generate the first information / signal, and then transmit the wireless signal including the first information / signal through the transceiver 106.
- the processor 102 may receive the wireless signal including the second information / signal through the transceiver 106 and store the information obtained from the signal processing of the second information / signal in the memory 104.
- the memory 104 may be connected to the processor 102 and may store various information related to the operation of the processor 102.
- the memory 104 is an instruction to perform some or all of the processes controlled by the processor 102, or to perform the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein. You can store software code that includes
- the processor 102 and the memory 104 may be part of a communication modem / circuit / chip designed to implement wireless communication technology (eg, LTE, NR).
- the transceiver 106 can be coupled to the processor 102 and can transmit and / or receive wireless signals through one or more antennas 108.
- the transceiver 106 may include a transmitter and / or receiver.
- the transceiver 106 may be mixed with a radio frequency (RF) unit.
- the wireless device may mean a communication modem / circuit / chip.
- the second wireless device 200 includes one or more processors 202, one or more memories 204, and may further include one or more transceivers 206 and / or one or more antennas 208.
- Processor 202 controls memory 204 and / or transceiver 206 and may be configured to implement the descriptions, functions, procedures, suggestions, methods, and / or operational flowcharts disclosed herein.
- the processor 202 may process information in the memory 204 to generate third information / signal, and then transmit a wireless signal including the third information / signal through the transceiver 206.
- the processor 202 may receive the wireless signal including the fourth information / signal through the transceiver 206 and store the information obtained from the 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.
- the memory 204 is an instruction to perform some or all of the processes controlled by the processor 202, or to perform the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein. You can store software code that includes
- the processor 202 and the memory 204 may be part of a communication modem / circuit / chip designed to implement wireless communication technology (eg, LTE, NR).
- the transceiver 206 can be coupled to the processor 202 and can transmit and / or receive wireless signals through one or more antennas 208.
- Transceiver 206 may include a transmitter and / or receiver.
- Transceiver 206 may be mixed with an RF unit.
- the wireless device may mean a communication modem / circuit / chip.
- one or more protocol layers may be implemented by one or more processors 102 and 202.
- one or more processors 102, 202 may implement one or more layers (eg, functional layers such as PHY, MAC, RLC, PDCP, RRC, SDAP).
- the one or more processors 102 and 202 may include one or more Protocol Data Units (PDUs) and / or one or more Service Data Units (SDUs) according to the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein. Can be created.
- PDUs Protocol Data Units
- SDUs Service Data Units
- the one or more processors 102, 202 may generate messages, control information, data or information according to the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein.
- the one or more processors 102, 202 generate signals (eg, baseband signals) including PDUs, SDUs, messages, control information, data or information according to the functions, procedures, suggestions and / or methods disclosed herein. , To one or more transceivers 106, 206.
- One or more processors 102, 202 may receive signals (eg, baseband signals) from one or more transceivers 106, 206, and descriptions, functions, procedures, suggestions, methods and / or operational flow diagrams disclosed herein PDUs, SDUs, messages, control information, data or information may be obtained according to the fields.
- signals eg, baseband signals
- One or more processors 102, 202 may be referred to as a controller, microcontroller, microprocessor, or microcomputer.
- the 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
- Descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed in this document may be implemented using firmware or software, and firmware or software may be implemented to include modules, procedures, functions, and the like.
- the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein are either firmware or software set to perform or are stored 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, 202).
- the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein can be implemented using firmware or software in the form of code, instructions and / or instructions.
- One or more memories 104, 204 may be coupled to one or more processors 102, 202, and may store various types of data, signals, messages, information, programs, codes, instructions, and / or instructions.
- the one or more memories 104, 204 may be comprised of ROM, RAM, EPROM, flash memory, hard drive, register, cache memory, computer readable storage medium and / or combinations thereof.
- the one or more memories 104, 204 may be located inside and / or outside of the one or more processors 102, 202. Also, the one or more memories 104 and 204 may be connected to the one or more processors 102 and 202 through various technologies such as a wired or wireless connection.
- the one or more transceivers 106 and 206 may transmit user data, control information, radio signals / channels, and the like referred to in the methods and / or operational flowcharts of the present document to one or more other devices.
- the one or more transceivers 106, 206 may receive user data, control information, radio signals / channels, and the like referred to in the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein from one or more other devices. have.
- one or more transceivers 106, 206 may be coupled to one or more processors 102, 202, and may transmit and receive wireless signals.
- one or more processors 102, 202 can control one or more transceivers 106, 206 to transmit user data, control information, or wireless signals to one or more other devices. Additionally, the one or more processors 102, 202 may control one or more transceivers 106, 206 to receive user data, control information, or wireless signals from one or more other devices. In addition, one or more transceivers 106, 206 may be coupled to one or more antennas 108, 208, and one or more transceivers 106, 206 may be described, functions described herein through one or more antennas 108, 208.
- the one or more antennas may be a plurality of physical antennas or a plurality of logical antennas (eg, antenna ports).
- the one or more transceivers 106 and 206 process the received user data, control information, radio signals / channels, etc. using one or more processors 102, 202, and receive radio signals / channels from the RF band signal. It can be converted to a baseband signal.
- the one or more transceivers 106 and 206 may convert user data, control information, and radio signals / channels processed using one or more processors 102 and 202 from a baseband signal to an RF band signal.
- the one or more transceivers 106, 206 may include (analog) oscillators and / or filters.
- FIG. 23 shows a signal processing circuit for a transmission signal, according to an embodiment of the present disclosure.
- the signal processing circuit 1000 may include a scrambler 1010, a modulator 1020, a layer mapper 1030, a precoder 1040, a resource mapper 1050, and a signal generator 1060.
- the operations / functions of FIG. 23 may be performed in processors 102, 202 and / or transceivers 106, 206 of FIG.
- the hardware elements of FIG. 23 can be implemented in the processors 102, 202 and / or transceivers 106, 206 of FIG. 22.
- blocks 1010 to 1060 may be implemented in processors 102 and 202 of FIG. 22.
- blocks 1010 to 1050 may be implemented in the processors 102 and 202 of FIG. 22, and block 1060 may be implemented in the transceivers 106 and 206 of FIG. 22.
- the codeword may be converted into a wireless signal through the signal processing circuit 1000 of FIG. 23.
- the codeword is an encoded bit sequence of an information block.
- the information block may include a transport block (eg, UL-SCH transport block, DL-SCH transport block).
- the radio signal may be transmitted through various physical channels (eg, PUSCH, PDSCH).
- the codeword may be converted into a scrambled bit sequence by the scrambler 1010.
- the scramble sequence used for scramble is generated based on the initialization value, and the initialization value may include ID information of the wireless device.
- the scrambled bit sequence can be modulated into a modulated symbol sequence by the modulator 1020.
- the modulation method may include pi / 2-Binary Phase Shift Keying (pi / 2-BPSK), m-Phase Shift Keying (m-PSK), m-Quadrature Amplitude Modulation (m-QAM), and the like.
- the complex modulation symbol sequence may be mapped to one or more transport layers by the layer mapper 1030.
- the modulation symbols of each transport layer may be mapped to the corresponding antenna port (s) by the precoder 1040 (precoding).
- the output z of the precoder 1040 can be obtained by multiplying the output y of the layer mapper 1030 by the precoding matrix W of N * M.
- N is the number of antenna ports and M is the number of transport layers.
- the precoder 1040 may perform precoding after performing transform precoding (eg, DFT transformation) on complex modulation symbols. Further, the precoder 1040 may perform precoding without performing transform precoding.
- the resource mapper 1050 may map modulation symbols of each antenna port to time-frequency resources.
- the time-frequency resource may include a plurality of symbols (eg, CP-OFDMA symbol, DFT-s-OFDMA symbol) in the time domain, and may include a plurality of subcarriers in the frequency domain.
- the signal generator 1060 generates a radio signal from the mapped modulation symbols, and the generated radio signal can be transmitted to other devices through each antenna. To this end, the signal generator 1060 may include an Inverse Fast Fourier Transform (IFFT) module and a Cyclic Prefix (CP) inserter, a Digital-to-Analog Converter (DAC), a frequency uplink converter, etc. .
- IFFT Inverse Fast Fourier Transform
- CP Cyclic Prefix
- DAC Digital-to-Analog Converter
- the signal processing process for the received signal in the wireless device may be composed of the inverse of the signal processing processes 1010 to 1060 of FIG. 23.
- a wireless device eg, 100 and 200 in FIG. 22
- the received radio signal may be converted into a baseband signal through a signal restorer.
- the signal recoverer may include a frequency downlink converter (ADC), an analog-to-digital converter (ADC), a CP remover, and a Fast Fourier Transform (FFT) module.
- ADC frequency downlink converter
- ADC analog-to-digital converter
- CP remover a CP remover
- FFT Fast Fourier Transform
- the baseband signal may be restored to a codeword through a resource de-mapper process, a postcoding process, a demodulation process, and a de-scramble process.
- the codeword can be restored to the original information block through decoding.
- the signal processing circuit (not shown) for the received signal may include a signal restorer, a resource de-mapper, a post coder, a demodulator, a de-scrambler and a decoder.
- the wireless device may be implemented in various forms according to use-example / service (see FIG. 21).
- the wireless devices 100 and 200 correspond to the wireless devices 100 and 200 of FIG. 22, and various elements, components, units / units, and / or modules ).
- the wireless devices 100 and 200 may include a communication unit 110, a control unit 120, a memory unit 130, and additional elements 140.
- the communication unit may include a communication circuit 112 and a transceiver (s) 114.
- the communication circuit 112 can include one or more processors 102,202 and / or one or more memories 104,204 in FIG.
- the transceiver (s) 114 may include one or more transceivers 106,206 and / or one or more antennas 108,208 of FIG. 22.
- the control unit 120 is electrically connected to the communication unit 110, the memory unit 130, and the additional element 140, and controls various operations of the wireless device. For example, the controller 120 may control the electrical / mechanical operation of the wireless device based on the program / code / command / information stored in the memory unit 130. In addition, the control unit 120 transmits information stored in the memory unit 130 to the outside (eg, another communication device) through the wireless / wired interface through the communication unit 110, or externally (eg, through the communication unit 110) Information received through a wireless / wired interface from another communication device) may be stored in the memory unit 130.
- the outside eg, another communication device
- Information received through a wireless / wired interface from another communication device may be stored in the memory unit 130.
- the additional element 140 may be variously configured according to the type of wireless device.
- the additional element 140 may include at least one of a power unit / battery, an input / output unit (I / O unit), a driving unit, and a computing unit.
- wireless devices include robots (FIGS. 21, 100A), vehicles (FIGS. 21, 100B-1, 100B-2), XR devices (FIGS. 21, 100C), portable devices (FIGS. 21, 100D), and household appliances. (Fig. 21, 100e), IoT device (Fig.
- the wireless device may be movable or used in a fixed place depending on the use-example / service.
- various elements, components, units / parts, and / or modules in the wireless devices 100 and 200 may be connected to each other through a wired interface, or at least some of them may be connected wirelessly through the communication unit 110.
- the control unit 120 and the communication unit 110 are connected by wire, and the control unit 120 and the first unit (eg, 130 and 140) are connected through the communication unit 110. It can be connected wirelessly.
- each element, component, unit / unit, and / or module in the wireless devices 100 and 200 may further include one or more elements.
- the controller 120 may be composed of one or more processor sets.
- control unit 120 may include a set of communication control processor, application processor, electronic control unit (ECU), graphic processing processor, and memory control processor.
- memory unit 130 includes random access memory (RAM), dynamic RAM (DRAM), read only memory (ROM), flash memory, volatile memory, and non-volatile memory (non- volatile memory) and / or combinations thereof.
- the portable device may include a smart phone, a smart pad, a wearable device (eg, a smart watch, smart glasses), and a portable computer (eg, a notebook).
- the mobile device may be referred to as a mobile station (MS), a user terminal (UT), a mobile subscriber station (MSS), a subscriber station (SS), an advanced mobile station (AMS), or a wireless terminal (WT).
- MS mobile station
- UT user terminal
- MSS mobile subscriber station
- SS subscriber station
- AMS advanced mobile station
- WT wireless terminal
- the mobile device 100 includes an antenna unit 108, a communication unit 110, a control unit 120, a memory unit 130, a power supply unit 140a, an interface unit 140b, and an input / output unit 140c. ).
- the antenna unit 108 may be configured as a part of the communication unit 110.
- Blocks 110 to 130 / 140a to 140c correspond to blocks 110 to 130/140 in FIG. 24, respectively.
- the communication unit 110 may transmit and receive signals (eg, data, control signals, etc.) with other wireless devices and base stations.
- the control unit 120 may perform various operations by controlling components of the portable device 100.
- the controller 120 may include an application processor (AP).
- the memory unit 130 may store data / parameters / programs / codes / instructions required for driving the portable device 100. Also, the memory unit 130 may store input / output data / information.
- the power supply unit 140a supplies power to the portable device 100 and may include a wired / wireless charging circuit, a battery, and the like.
- the interface unit 140b may support the connection between the mobile device 100 and other external devices.
- the interface unit 140b may include various ports (eg, audio input / output ports, video input / output ports) for connection with external devices.
- the input / output unit 140c may receive or output image information / signal, audio information / signal, data, and / or information input from a user.
- the input / output unit 140c may include a camera, a microphone, a user input unit, a display unit 140d, a speaker, and / or a haptic module.
- the input / output unit 140c acquires information / signal (eg, touch, text, voice, image, video) input from the user, and the obtained information / signal is transmitted to the memory unit 130 Can be saved.
- the communication unit 110 may convert information / signals stored in the memory into wireless signals, and transmit the converted wireless signals directly to other wireless devices or to a base station.
- the communication unit 110 may restore the received radio signal to original information / signal. After the restored information / signal is stored in the memory unit 130, it can be output in various forms (eg, text, voice, image, video, heptic) through the input / output unit 140c.
- Vehicles or autonomous vehicles can be implemented as mobile robots, vehicles, trains, aerial vehicles (AVs), ships, and the like.
- a vehicle or an autonomous vehicle 100 includes an antenna unit 108, a communication unit 110, a control unit 120, a driving unit 140a, a power supply unit 140b, a sensor unit 140c, and autonomous driving It may include a portion (140d).
- the antenna unit 108 may be configured as a part of the communication unit 110.
- Blocks 110/130 / 140a to 140d correspond to blocks 110/130/140 in FIG. 24, respectively.
- the communication unit 110 may transmit and receive signals (eg, data, control signals, etc.) with external devices such as other vehicles, a base station (e.g. base station, road side unit, etc.) and a server.
- the controller 120 may perform various operations by controlling elements of the vehicle or the autonomous vehicle 100.
- the controller 120 may include an electronic control unit (ECU).
- the driving unit 140a may cause the vehicle or the autonomous vehicle 100 to travel on the ground.
- the driving unit 140a may include an engine, a motor, a power train, wheels, brakes, and steering devices.
- the power supply unit 140b supplies power to the vehicle or the autonomous vehicle 100 and may include a wired / wireless charging circuit, a battery, and the like.
- the sensor unit 140c may obtain vehicle status, surrounding environment information, user information, and the like.
- the sensor unit 140c includes an inertial measurement unit (IMU) sensor, a collision sensor, a wheel sensor, a speed sensor, an inclination sensor, a weight sensor, a heading sensor, a position module, and a vehicle forward / Reverse sensor, battery sensor, fuel sensor, tire sensor, steering sensor, temperature sensor, humidity sensor, ultrasonic sensor, illumination sensor, pedal position sensor, and the like.
- the autonomous driving unit 140d maintains a driving lane, automatically adjusts speed, such as adaptive cruise control, and automatically moves along a predetermined route, and automatically sets a route when a destination is set. Technology, etc. can be implemented.
- the communication unit 110 may receive map data, traffic information data, and the like from an external server.
- the autonomous driving unit 140d may generate an autonomous driving route and a driving plan based on the acquired data.
- the controller 120 may control the driving unit 140a such that the vehicle or the autonomous vehicle 100 moves along the autonomous driving path according to a driving plan (eg, speed / direction adjustment).
- a driving plan eg, speed / direction adjustment.
- the communication unit 110 may acquire the latest traffic information data non-periodically from an external server, and acquire surrounding traffic information data from nearby vehicles.
- the sensor unit 140c may acquire vehicle status and surrounding environment information.
- the autonomous driving unit 140d may update the autonomous driving route and driving plan based on newly acquired data / information.
- the communication unit 110 may transmit information regarding a vehicle location, an autonomous driving route, and a driving plan to an external server.
- the external server may predict traffic information data in advance using AI technology or the like based on the information collected from the vehicle or autonomous vehicles, and provide the predicted traffic information data to the vehicle or autonomous vehicles.
- FIG. 27 illustrates a vehicle, according to one embodiment of the present disclosure. Vehicles can also be implemented by means of transport, trains, aircraft, ships, etc.
- the vehicle 100 may include a communication unit 110, a control unit 120, a memory unit 130, an input / output unit 140a, and a position measurement unit 140b.
- blocks 110 to 130 / 140a to 140b correspond to blocks 110 to 130/140 in FIG. 24, respectively.
- the communication unit 110 may transmit and receive signals (eg, data, control signals, etc.) with other vehicles or external devices such as a base station.
- the controller 120 may control various components of the vehicle 100 to perform various operations.
- the memory unit 130 may store data / parameters / programs / codes / commands supporting various functions of the vehicle 100.
- the input / output unit 140a may output an AR / VR object based on information in the memory unit 130.
- the input / output unit 140a may include a HUD.
- the location measurement unit 140b may acquire location information of the vehicle 100.
- the location information may include absolute location information of the vehicle 100, location information within the driving line, acceleration information, location information with surrounding vehicles, and the like.
- the position measuring unit 140b may include GPS and various sensors.
- the communication unit 110 of the vehicle 100 may receive map information, traffic information, and the like from an external server and store them in the memory unit 130.
- the location measurement unit 140b may acquire vehicle location information through GPS and various sensors and store it in the memory unit 130.
- the control unit 120 may generate a virtual object based on map information, traffic information, and vehicle location information, and the input / output unit 140a may display the generated virtual object on a glass window in the vehicle (1410, 1420).
- the control unit 120 may determine whether the vehicle 100 is normally operating in the driving line based on the vehicle location information. When the vehicle 100 deviates abnormally from the driving line, the control unit 120 may display a warning on the glass window in the vehicle through the input / output unit 140a.
- control unit 120 may broadcast a warning message about driving abnormalities to nearby vehicles through the communication unit 110. Depending on the situation, the control unit 120 may transmit the location information of the vehicle and the information on the driving / vehicle abnormality to the related organization through the communication unit 110.
- the XR device may be implemented as an HMD, a head-up display (HUD) provided in a vehicle, a television, a smartphone, a computer, a wearable device, a home appliance, a digital signage, a vehicle, a robot, and the like.
- HMD head-up display
- the XR device may be implemented as an HMD, a head-up display (HUD) provided in a vehicle, a television, a smartphone, a computer, a wearable device, a home appliance, a digital signage, a vehicle, a robot, and the like.
- HUD head-up display
- the XR device 100a may include a communication unit 110, a control unit 120, a memory unit 130, an input / output unit 140a, a sensor unit 140b, and a power supply unit 140c.
- blocks 110 to 130 / 140a to 140c correspond to blocks 110 to 130/140 in FIG. 24, respectively.
- the communication unit 110 may transmit / receive signals (eg, media data, control signals, etc.) with other wireless devices, portable devices, or external devices such as a media server.
- Media data may include images, images, and sounds.
- the control unit 120 may perform various operations by controlling the components of the XR device 100a.
- the controller 120 may be configured to control and / or perform procedures such as video / image acquisition, (video / image) encoding, and metadata creation and processing.
- the memory unit 130 may store data / parameters / programs / codes / instructions necessary for driving the XR device 100a / creating an XR object.
- the input / output unit 140a acquires control information, data, and the like from the outside, and may output the generated XR object.
- the input / output unit 140a may include a camera, a microphone, a user input unit, a display unit, a speaker, and / or a haptic module.
- the sensor unit 140b may obtain XR device status, surrounding environment information, user information, and the like.
- the sensor unit 140b may include a proximity sensor, an illuminance sensor, an acceleration sensor, a magnetic sensor, a gyro sensor, an inertial sensor, an RGB sensor, an IR sensor, a fingerprint recognition sensor, an ultrasonic sensor, an optical sensor, a microphone, and / or a radar, etc. have.
- the power supply unit 140c supplies power to the XR device 100a, and may include a wire / wireless charging circuit, a battery, and the like.
- the memory unit 130 of the XR device 100a may include information (eg, data, etc.) necessary for the generation of an XR object (eg, AR / VR / MR object).
- the input / output unit 140a may obtain a command for operating the XR device 100a from a user, and the control unit 120 may drive the XR device 100a according to a user's driving command. For example, when a user tries to watch a movie, news, etc. through the XR device 100a, the control unit 120 transmits the content request information through the communication unit 130 to another device (eg, the mobile device 100b) or Media server.
- the communication unit 130 may download / stream content such as movies and news from another device (eg, the mobile device 100b) or a media server to the memory unit 130.
- the controller 120 controls and / or performs procedures such as video / image acquisition, (video / image) encoding, and metadata creation / processing for content, and is obtained through the input / output unit 140a / sensor unit 140b
- An XR object may be generated / output based on information about a surrounding space or a real object.
- the XR device 100a is wirelessly connected to the portable device 100b through the communication unit 110, and the operation of the XR device 100a may be controlled by the portable device 100b.
- the portable device 100b may operate as a controller for the XR device 100a.
- the XR device 100a may acquire 3D location information of the portable device 100b, and then generate and output an XR object corresponding to the portable device 100b.
- Robots can be classified into industrial, medical, household, military, etc. according to the purpose or field of use.
- the robot 100 may include a communication unit 110, a control unit 120, a memory unit 130, an input / output unit 140a, a sensor unit 140b, and a driving unit 140c.
- blocks 110 to 130 / 140a to 140c correspond to blocks 110 to 130/140 in FIG. 24, respectively.
- the communication unit 110 may transmit and receive signals (eg, driving information, control signals, etc.) with other wireless devices, other robots, or external devices such as a control server.
- the control unit 120 may control various components of the robot 100 to perform various operations.
- the memory unit 130 may store data / parameters / programs / codes / commands supporting various functions of the robot 100.
- the input / output unit 140a obtains information from the outside of the robot 100 and outputs information to the outside of the robot 100.
- the input / output unit 140a may include a camera, a microphone, a user input unit, a display unit, a speaker, and / or a haptic module.
- the sensor unit 140b may obtain internal information of the robot 100, surrounding environment information, user information, and the like.
- the sensor unit 140b may include a proximity sensor, an illuminance sensor, an acceleration sensor, a magnetic sensor, a gyro sensor, an inertial sensor, an IR sensor, a fingerprint recognition sensor, an ultrasonic sensor, an optical sensor, a microphone, and a radar.
- the driving unit 140c may perform various physical operations such as moving a robot joint. In addition, the driving unit 140c may cause the robot 100 to run on the ground or fly in the air.
- the driving unit 140c may include an actuator, a motor, a wheel, a brake, a propeller, and the like.
- AI devices can be fixed devices or mobile devices, such as TVs, projectors, smartphones, PCs, laptops, digital broadcasting terminals, tablet PCs, wearable devices, set-top boxes (STBs), radios, washing machines, refrigerators, digital signage, robots, vehicles, etc. It can be implemented as a possible device.
- the AI device 100 includes a communication unit 110, a control unit 120, a memory unit 130, an input / output unit 140a / 140b, a running processor unit 140c, and a sensor unit 140d It may include.
- Blocks 110 to 130 / 140a to 140d correspond to blocks 110 to 130/140 in FIG. 24, respectively.
- the communication unit 110 uses wired / wireless communication technology to communicate with external devices such as other AI devices (eg, 20, 100x, 200, 400) or AI servers (eg, 400 in FIG. 21) (eg, sensor information). , User input, learning model, control signals, etc.). To this end, the communication unit 110 may transmit information in the memory unit 130 to an external device or transmit a signal received from the external device to the memory unit 130.
- external devices such as other AI devices (eg, 20, 100x, 200, 400) or AI servers (eg, 400 in FIG. 21) (eg, sensor information). , User input, learning model, control signals, etc.).
- the communication unit 110 may transmit information in the memory unit 130 to an external device or transmit a signal received from the external device to the memory unit 130.
- the controller 120 may determine at least one executable action of the AI device 100 based on information determined or generated using a data analysis algorithm or a machine learning algorithm. Then, the control unit 120 may control the components of the AI device 100 to perform the determined operation. For example, the controller 120 may request, search, receive, or utilize data of the learning processor unit 140c or the memory unit 130, and may be determined to be a predicted operation or desirable among at least one executable operation. Components of the AI device 100 may be controlled to perform an operation. In addition, the control unit 120 collects history information including the user's feedback on the operation content or operation of the AI device 100 and stores it in the memory unit 130 or the running processor unit 140c, or the AI server ( 21, 400). The collected history information can be used to update the learning model.
- the memory unit 130 may store data supporting various functions of the AI device 100.
- the memory unit 130 may store data obtained from the input unit 140a, data obtained from the communication unit 110, output data from the running processor unit 140c, and data obtained from the sensing unit 140.
- the memory unit 130 may store control information and / or software code necessary for operation / execution of the control unit 120.
- the input unit 140a may acquire various types of data from the outside of the AI device 100.
- the input unit 140a may acquire training data for model training and input data to which the training model is applied.
- the input unit 140a may include a camera, a microphone, and / or a user input unit.
- the output unit 140b may generate output related to vision, hearing, or touch.
- the output unit 140b may include a display unit, a speaker, and / or a haptic module.
- the sensing unit 140 may obtain at least one of internal information of the AI device 100, environment information of the AI device 100, and user information using various sensors.
- the sensing unit 140 may include a proximity sensor, an illuminance sensor, an acceleration sensor, a magnetic sensor, a gyro sensor, an inertial sensor, an RGB sensor, an IR sensor, a fingerprint recognition sensor, an ultrasonic sensor, an optical sensor, a microphone, and / or a radar, etc. have.
- the learning processor unit 140c may train a model composed of artificial neural networks using the training data.
- the learning processor unit 140c may perform AI processing together with the learning processor unit of the AI server (FIGS. 21 and 400).
- the learning processor unit 140c may process information received from an external device through the communication unit 110 and / or information stored in the memory unit 130. Further, the output value of the running processor unit 140c may be transmitted to an external device through the communication unit 110 and / or stored in the memory unit 130.
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Abstract
Description
SCS (15*2u) | Nslot symb | Nframe,u slot | Nsubframe,u slot |
15KHz (u=0) | 14 | 10 | 1 |
30KHz (u=1) | 14 | 20 | 2 |
60KHz (u=2) | 14 | 40 | 4 |
120KHz (u=3) | 14 | 80 | 8 |
240KHz (u=4) | 14 | 160 | 16 |
SCS (15*2u) | Nslot symb | Nframe,u slot | Nsubframe,u slot |
60KHz (u=2) | 12 | 40 | 4 |
Frequency Range designation | Corresponding frequency range | Subcarrier Spacing (SCS) |
FR1 | 450MHz - 6000MHz | 15, 30, 60kHz |
FR2 | 24250MHz - 52600MHz | 60, 120, 240kHz |
Frequency Range designation | Corresponding frequency range | Subcarrier Spacing (SCS) |
FR1 | 410MHz - 7125MHz | 15, 30, 60kHz |
FR2 | 24250MHz - 52600MHz | 60, 120, 240kHz |
Claims (15)
- 무선 통신 시스템에서 제 1 장치(100)의 동작 방법에 있어서,사이드링크 정보의 전송과 관련된 자원을 선택하기 위한 제 1 영역을 결정하는 단계; 및사이드링크 HARQ 피드백과 관련된 정보에 기반하여 상기 제 1 영역을 제 2 영역으로 조절하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서,상기 사이드링크 정보는 사이드링크 데이터 또는 사이드링크 제어 정보 중 적어도 어느 하나를 포함하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서,상기 제 2 영역 내 자원을 이용하여 상기 사이드링크 정보를 제 2 장치(200)에게 전송하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서,상기 사이드링크 HARQ 피드백과 관련된 정보에 기반하여 상기 제 1 영역을 제 2 영역으로 조절하는 단계는,상기 사이드링크 HARQ 피드백이 필요한지 여부를 결정하는 단계; 및상기 제 1 장치(100)가 상기 사이드링크 HARQ 피드백이 필요하다고 결정한 경우, 상기 사이드링크 HARQ 피드백과 관련된 정보에 기반하여 상기 제 1 영역을 제 2 영역으로 조절하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제 4 항에 있어서,상기 사이드링크 HARQ 피드백이 필요한지 여부를 결정하는 단계는,캐스트 타입, 채널 상태와 관련된 정보, 상기 제 1 장치(100)의 능력(capability)과 관련된 정보 또는 상기 사이드링크 정보와 관련된 우선순위 정보, 상기 사이드링크 정보와 관련된 신뢰도 정보 중 적어도 어느 하나에 기반하여 상기 사이드링크 HARQ 피드백이 필요한지 여부를 결정하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서,상기 사이드링크 HARQ 피드백과 관련된 정보는 최대 재전송 횟수, 디폴트 재전송 횟수 또는 HARQ RTT(round trip time) 중 적어도 어느 하나를 포함하고,상기 HARQ RTT는 상기 제 1 장치(100)가 상기 사이드링크 정보와 관련된 최초 전송을 수행한 시점부터 상기 최초 전송에 대응하는 사이드링크 HARQ 피드백을 수신한 후, 상기 사이드링크 정보와 관련된 재전송을 수행한 시점까지 걸리는 시간이고,상기 최대 재전송 횟수는 상기 제 1 장치(100)가 상기 사이드링크 정보를 재전송할 수 있는 최대 횟수이고,상기 디폴트 재전송 횟수는 상기 제 1 장치(100)가 상기 사이드링크 정보를 재전송해야 하는 횟수인 것을 특징으로 하는 방법.
- 제 6 항에 있어서,상기 사이드링크 HARQ 피드백과 관련된 정보에 기반하여 상기 제 1 영역을 제 2 영역으로 조절하는 단계는,상기 제 1 영역의 시간 구간, 상기 최대 재전송 횟수 및 상기 HARQ RTT에 기반하여 상기 제 1 영역을 상기 제 2 영역으로 조절하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제 6 항에 있어서,상기 사이드링크 HARQ 피드백과 관련된 정보에 기반하여 상기 제 1 영역을 제 2영역으로 조절하는 단계는,상기 제 1 영역의 시간 구간, 상기 최대 재전송 횟수 및 지연 가능한 최대 시간 값이 반영된 HARQ RTT에 기반하여 상기 제 1 영역을 상기 제 2 영역으로 조절하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서,상기 사이드링크 HARQ 피드백과 관련된 정보에 기반하여 상기 제 1 영역을 제 2 영역으로 조절하는 단계는,상기 사이드링크 HARQ 피드백과 관련된 정보 및 상기 제 1 장치의 능력(capability)과 관련된 정보에 기반하여 상기 제 2 영역을 결정하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서,상기 사이드링크 HARQ 피드백과 관련된 정보에 기반하여 상기 제 1 영역을 제 2 영역으로 조절하는 단계는,상기 사이드링크 HARQ 피드백과 관련된 정보 및 상기 사이드링크 정보와 관련된 우선 순위 정보에 기반하여 상기 제 2 영역을 결정하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서,상기 사이드링크 HARQ 피드백과 관련된 정보에 기반하여 상기 제 1 영역을 제 2 영역으로 조절하는 단계는,상기 사이드링크 HARQ 피드백과 관련된 정보 및 상기 사이드링크 정보와 관련된 신뢰도 정보에 기반하여 상기 제 2 영역을 결정하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서,상기 사이드링크 HARQ 피드백과 관련된 정보에 기반하여 상기 제 1 영역을 제 2 영역으로 조절하는 단계는,상기 사이드링크 HARQ 피드백과 관련된 정보 및 상기 사이드링크 정보와 관련된 채널 정보에 기반하여 상기 제 2 영역을 결정하는 단계를 포함하는 것을 특징으로 하는 방법.
- 무선 통신 시스템에서 제 2 장치(200)의 동작 방법에 있어서,제 1 장치(100)로부터 사이드링크 정보를 수신하는 단계; 및상기 사이드링크 정보에 대응하는 피드백의 전송과 관련된 자원을 선택하기 위한 제 1 영역을 상기 피드백과 관련된 정보에 기반하여 결정하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제 13 항에 있어서,상기 사이드링크 정보는 사이드링크 데이터 또는 사이드링크 제어 정보 중 적어도 어느 하나를 포함하고, 및상기 사이드링크 정보에 대응하는 피드백은 사이드링크 HARQ 피드백 또는 CSI 피드백 중 어느 하나인 것을 특징으로 하는 방법.
- 무선 통신 시스템에서 제 1 장치(100)에 있어서,하나 이상의 메모리; 하나 이상의 송수신기; 및 상기 하나 이상의 메모리와 상기 하나 이상의 송수신기를 연결하는 하나 이상의 프로세서를 포함하되, 상기 프로세서는,사이드링크 정보의 전송과 관련된 자원을 선택하기 위한 제 1 영역을 결정하고, 및사이드링크 HARQ 피드백과 관련된 정보에 기반하여 상기 제 1 영역을 제 2 영역으로 조절하는 것을 특징으로 하는 장치.
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CN201980006758.7A CN111527784A (zh) | 2018-10-25 | 2019-10-25 | 在无线通信系统中基于与副链路harq反馈相关的信息确定资源选择窗口的方法和装置 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021233413A1 (zh) * | 2020-05-21 | 2021-11-25 | 维沃移动通信有限公司 | 资源确定、传输、反馈方法、发送端和接收端 |
CN113891462A (zh) * | 2020-07-03 | 2022-01-04 | 维沃移动通信有限公司 | 副链路反馈资源配置方法、信息处理方法和设备 |
WO2022070285A1 (ja) * | 2020-09-29 | 2022-04-07 | 株式会社Nttドコモ | 端末及び通信方法 |
US20220417922A1 (en) * | 2021-06-24 | 2022-12-29 | Facebook Technologies, Llc | Context aware mode switching of wireless device |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113196821B (zh) * | 2018-12-27 | 2023-12-22 | 株式会社Ntt都科摩 | 用户装置 |
CN111294159B (zh) * | 2019-01-11 | 2021-04-27 | 北京紫光展锐通信技术有限公司 | 用于组播通信的harq反馈方法及装置、存储介质、终端 |
BR112021015734A2 (pt) * | 2019-02-12 | 2021-10-26 | Idac Holdings, Inc. | Método para monitoramento de link de rádio sidelink e determinação de falha de link de rádio |
KR102658886B1 (ko) | 2019-02-14 | 2024-04-18 | 삼성전자 주식회사 | 차세대 이동 통신 시스템에서 차량 통신을 지원하기 위한 단말 능력 절차 수행 방법 및 장치 |
US11252753B2 (en) * | 2019-02-21 | 2022-02-15 | Asustek Computer Inc. | Method and apparatus for improving retransmission scheduling of sidelink communication in a wireless communication system |
CN113766562B (zh) * | 2019-03-28 | 2023-05-12 | Oppo广东移动通信有限公司 | 重传资源配置方法、设备、芯片及计算机程序 |
US11304180B2 (en) * | 2019-03-28 | 2022-04-12 | Samsung Electronics Co., Ltd | Method and device of resource allocation for sidelink transmission in wireless communication system |
EP3952428A4 (en) * | 2019-04-02 | 2022-11-16 | Ntt Docomo, Inc. | USER DEVICE |
CN111866791A (zh) * | 2019-04-28 | 2020-10-30 | 大唐移动通信设备有限公司 | 一种直通链路传输方法和终端 |
US11695531B2 (en) * | 2019-05-02 | 2023-07-04 | Intel Corporation | Resources selection for feedback based NR-V2X communication |
US11589336B2 (en) * | 2019-05-03 | 2023-02-21 | Qualcomm Incorporated | Two-stage physical sidelink control channel resource reservation |
KR20200145212A (ko) * | 2019-06-21 | 2020-12-30 | 삼성전자주식회사 | 통신 시스템에서 사이드링크 피드백 송수신 방법 및 장치 |
EP4000302A4 (en) * | 2019-07-17 | 2023-07-19 | LG Electronics Inc. | METHOD AND DEVICE FOR PERFORMING SIDELINK RETRANSMISSION |
US11470017B2 (en) * | 2019-07-30 | 2022-10-11 | At&T Intellectual Property I, L.P. | Immersive reality component management via a reduced competition core network component |
US20210051737A1 (en) * | 2019-08-16 | 2021-02-18 | Qualcomm Incorporated | Communication resource selection in sidelink communication |
US11457455B2 (en) * | 2019-09-12 | 2022-09-27 | Qualcomm Incorporated | Signaling for selecting a subset of sidelink transmit resource pool by a receiver UE in sidelink |
EP4193741A4 (en) * | 2020-08-04 | 2023-09-27 | Telefonaktiebolaget LM Ericsson (publ) | ADAPTIVE SENSING-BASED RESOURCE SELECTION FOR D2D COMMUNICATION |
US20230198673A1 (en) * | 2020-08-24 | 2023-06-22 | Hyundai Motor Company | Method and device for retransmission in sidelink communication |
US20230319951A1 (en) * | 2020-08-29 | 2023-10-05 | Huawei Technologies Co., Ltd. | Discontinuous Reception DRX Method and Apparatus |
KR20220037369A (ko) * | 2020-09-17 | 2022-03-24 | 아서스테크 컴퓨터 인코포레이션 | 무선 통신 시스템에서 사이드링크 통신에 대한 디바이스-간 조정을 핸들링하는 방법 및 장치 |
JP2022051166A (ja) * | 2020-09-18 | 2022-03-31 | 日本電気株式会社 | 監視装置、通信システム、監視方法及び監視プログラム |
CN114286288B (zh) * | 2020-09-28 | 2023-12-05 | 维沃移动通信有限公司 | 信息传输方法、资源选择方法、装置及电子设备 |
US11937214B2 (en) * | 2020-10-09 | 2024-03-19 | Qualcomm Incorporated | Bandwidth part switch for sidelink communication |
WO2022078245A1 (en) * | 2020-10-16 | 2022-04-21 | Huizhou Tcl Cloud Internet Corporation Technology Co., Ltd. | Power saving for sidelink communications |
CN114513269B (zh) * | 2020-11-17 | 2023-05-02 | 大唐移动通信设备有限公司 | 资源选择窗的处理方法、装置、终端及可读存储介质 |
CN114640422B (zh) * | 2020-12-16 | 2023-10-17 | 中信科智联科技有限公司 | 资源重选控制方法、装置及终端 |
US11716753B2 (en) * | 2021-01-26 | 2023-08-01 | Qualcomm Incorporated | Feedback methods for subband full duplex systems |
EP4290970A1 (en) * | 2021-02-05 | 2023-12-13 | LG Electronics Inc. | Method for transmitting and receiving sidelink signal on unlicensed band by terminal in wireless communication system supporting sidelink, and device therefor |
EP4216640A1 (en) * | 2022-01-19 | 2023-07-26 | Nokia Solutions and Networks Oy | Allocating resources for communication and sensing services |
WO2024036422A1 (en) * | 2022-08-15 | 2024-02-22 | Qualcomm Incorporated | Physical sidelink feedback channel multiplexing with physical sidelink shared channel |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017176098A1 (ko) * | 2016-04-07 | 2017-10-12 | 엘지전자 주식회사 | 무선 통신 시스템에서 레이턴시 요구를 만족시키는 범위 내에서 v2x 통신을 수행할 자원을 선택하는 방법 및 상기 방법을 이용하는 단말 |
Family Cites Families (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20090078723A (ko) * | 2008-01-15 | 2009-07-20 | 삼성전자주식회사 | 무선 이동 통신 시스템에서 복합 자동 재송신 요구 방식에 기반한 신호 송수신 방법 |
CN101610607B (zh) * | 2008-06-20 | 2012-08-08 | 电信科学技术研究院 | 上行探测参考信号发送、接收方法以及基站和移动终端 |
US9369238B2 (en) * | 2008-08-12 | 2016-06-14 | Telefonaktiebolaget L M Ericsson (Publ) | Method and arrangement in a communication system |
KR101692552B1 (ko) * | 2010-01-18 | 2017-01-03 | 삼성전자주식회사 | 이동통신시스템에서 harq 및 arq 파라미터 설정 장치 및 방법 |
US8885496B2 (en) * | 2010-10-08 | 2014-11-11 | Sharp Kabushiki Kaisha | Uplink control information transmission on backward compatible PUCCH formats with carrier aggregation |
US9542711B2 (en) * | 2011-10-07 | 2017-01-10 | Salesforce.Com, Inc. | Computer implemented methods and apparatus for providing selective notifications in an online social network |
CN103546254B (zh) * | 2012-07-09 | 2017-09-15 | 财团法人工业技术研究院 | 执行混合式自动重送请求的方法及其基站与移动装置 |
WO2015026148A1 (ko) * | 2013-08-20 | 2015-02-26 | 엘지전자 주식회사 | 무선 접속 시스템에서 폴라 코딩을 이용한 데이터 송신방법 |
EP3069459B1 (en) * | 2013-11-12 | 2020-11-25 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Devices and methods for handling blind (re)transmissions in a network |
EP3141068B1 (en) * | 2014-05-06 | 2019-08-28 | LG Electronics Inc. | Method and apparatus for configuring transmission of d2d control information in wireless communication system |
EP3016465A1 (en) * | 2014-10-31 | 2016-05-04 | ASUSTeK Computer Inc. | Method and device for handling multiple d2d (device to device) grants in a sa (scheduling assignment) period in a wireless communication system |
KR102571193B1 (ko) * | 2015-01-23 | 2023-08-25 | 타이사 리서치 엘엘씨 | D2d 통신 시스템에서 d2d 단말을 위한 사이드링크 그랜트를 선택하는 방법 및 그 장치 |
CN112073158B (zh) * | 2015-01-28 | 2023-08-22 | 交互数字专利控股公司 | 用于操作大量载波的上行链路反馈方法 |
US10440771B2 (en) * | 2015-03-06 | 2019-10-08 | Qualcomm Incorporated | Conditional HARQ feedback |
WO2016148517A1 (ko) * | 2015-03-19 | 2016-09-22 | 엘지전자(주) | 무선 통신 시스템에서 단말 간 직접 통신을 수행하기 위한 방법 및 이를 위한 장치 |
CN107592984B (zh) * | 2015-05-07 | 2021-02-26 | Lg电子株式会社 | 在无线通信系统中根据基于竞争的调度请求执行副链路传输的方法和设备 |
WO2016190687A1 (ko) * | 2015-05-26 | 2016-12-01 | 엘지전자 주식회사 | 무선 통신 시스템에서 단말에 의해 수행되는 링크 해제 방법 및 상기 방법을 이용하는 단말 |
US10334586B2 (en) * | 2016-01-22 | 2019-06-25 | Qualcomm Incorporated | Hybrid automatic repeat request feedback for unicast sidelink communications |
WO2017138798A1 (en) * | 2016-02-11 | 2017-08-17 | Lg Electronics Inc. | Method for transmitting data in wireless communication system and a user equipment using the same |
EP3206321B1 (en) * | 2016-02-15 | 2020-07-08 | Panasonic Intellectual Property Corporation of America | Improved uplink harq operation for prose-enabled ues participating in sidelink discovery operation |
US20190059015A1 (en) * | 2016-02-24 | 2019-02-21 | Lg Electronics Inc. | Method and apparatus for relaying using non-3gpp radio access technology in wireless communication system |
WO2017171390A1 (ko) * | 2016-03-29 | 2017-10-05 | 엘지전자 주식회사 | 차세대 무선 통신 시스템에서 사이드링크를 통한 신호 송수신 방법 및 이를 위한 장치 |
JPWO2017209005A1 (ja) * | 2016-05-31 | 2019-03-28 | 株式会社Nttドコモ | ユーザ装置、及びネットワーク装置 |
US10362507B2 (en) * | 2016-06-10 | 2019-07-23 | Huawei Technologies Co., Ltd. | Systems and method for quality of service monitoring, policy enforcement, and charging in a communications network |
WO2018062857A1 (ko) * | 2016-09-30 | 2018-04-05 | 엘지전자 주식회사 | 무선 통신 시스템에서 우선 순위를 기반으로 단말 자체적으로 자원을 재선택하는 방법 및 장치 |
US9948481B1 (en) * | 2016-10-07 | 2018-04-17 | Qualcomm Incorporated | Uplink voice and video enhancements |
KR20180050192A (ko) * | 2016-11-04 | 2018-05-14 | 삼성전자주식회사 | 차세대 이동 통신 시스템을 지원하기 위한 mac 서브 헤더의 구조와 이를 적용하는 방법 및 장치 |
US10492184B2 (en) * | 2016-12-09 | 2019-11-26 | Samsung Electronics Co., Ltd. | Multiplexing control information in a physical uplink data channel |
US11026120B2 (en) * | 2017-02-06 | 2021-06-01 | Apple Inc. | Partial sensing and congestion control for long term evolution (LTE) vehicular communication |
US11025374B2 (en) * | 2017-08-04 | 2021-06-01 | Samsung Electronics Co., Ltd. | Methods and apparatus for resource allocation and feedback in vehicle to vehicle communication |
US10931426B2 (en) * | 2017-08-10 | 2021-02-23 | Futurewei Technologies, Inc. | System and method for sidelink feedback |
US11297472B2 (en) * | 2018-02-01 | 2022-04-05 | Hyundai Motor Company | Method and apparatus for load distribution using a plurality of carriers in communication system supporting vehicle-to-everything communication |
-
2019
- 2019-10-25 WO PCT/KR2019/014181 patent/WO2020085854A1/ko unknown
- 2019-10-25 KR KR1020207015290A patent/KR102224410B1/ko active IP Right Grant
- 2019-10-25 EP EP19875922.7A patent/EP3706493A4/en not_active Withdrawn
- 2019-10-25 CN CN201980006758.7A patent/CN111527784A/zh active Pending
- 2019-10-25 JP JP2020531694A patent/JP7018137B2/ja active Active
-
2020
- 2020-06-03 US US16/891,595 patent/US10992424B2/en active Active
-
2021
- 2021-04-05 US US17/222,620 patent/US20210226735A1/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017176098A1 (ko) * | 2016-04-07 | 2017-10-12 | 엘지전자 주식회사 | 무선 통신 시스템에서 레이턴시 요구를 만족시키는 범위 내에서 v2x 통신을 수행할 자원을 선택하는 방법 및 상기 방법을 이용하는 단말 |
Non-Patent Citations (5)
Title |
---|
ERICSSON: "On Mode 2 Resource Allocation for NR Sidelink", 3GPP TSG-RAN WG1 MEETING #94B, no. R1-1811594, 28 September 2018 (2018-09-28), Chengdu, China, XP051518992 * |
INTEL CORPORATION: "Sidelink Resource Allocation Mechanisms for NR V2X Communication", 3GPP TSG-RAN WG1 MEETING #94, no. R1-1808696, 11 August 2018 (2018-08-11), Gothenburg, Sweden, XP051516071 * |
INTERDIGITAL INC.: "Resource Allocation for NR V2X", 3GPP TSG-RAN WG1 MEETING #94B, no. R1-1811115, 29 September 2018 (2018-09-29), Chengdu, China, XP051518518 * |
ITL: "Discussion on NR V2X HARQ mechanism", 3GPP TSG-RAN WG1 MEETING #94B, no. R1-1811615, 29 September 2018 (2018-09-29), Chengdu, China, XP051519009 * |
See also references of EP3706493A4 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021233413A1 (zh) * | 2020-05-21 | 2021-11-25 | 维沃移动通信有限公司 | 资源确定、传输、反馈方法、发送端和接收端 |
CN113891462A (zh) * | 2020-07-03 | 2022-01-04 | 维沃移动通信有限公司 | 副链路反馈资源配置方法、信息处理方法和设备 |
CN113891462B (zh) * | 2020-07-03 | 2023-06-20 | 维沃移动通信有限公司 | 副链路反馈资源配置方法、信息处理方法和设备 |
WO2022070285A1 (ja) * | 2020-09-29 | 2022-04-07 | 株式会社Nttドコモ | 端末及び通信方法 |
US20220417922A1 (en) * | 2021-06-24 | 2022-12-29 | Facebook Technologies, Llc | Context aware mode switching of wireless device |
US11711829B2 (en) * | 2021-06-24 | 2023-07-25 | Meta Platforms Technologies, Llc | Context aware mode switching of wireless device |
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EP3706493A4 (en) | 2021-03-10 |
US10992424B2 (en) | 2021-04-27 |
CN111527784A (zh) | 2020-08-11 |
KR20200068744A (ko) | 2020-06-15 |
US20200295883A1 (en) | 2020-09-17 |
JP7018137B2 (ja) | 2022-02-09 |
JP2021506186A (ja) | 2021-02-18 |
KR102224410B1 (ko) | 2021-03-08 |
US20210226735A1 (en) | 2021-07-22 |
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