WO2020204485A1 - Procédé et appareil permettant de configurer un groupe de ressources dans un système de communication sans fil - Google Patents

Procédé et appareil permettant de configurer un groupe de ressources dans un système de communication sans fil Download PDF

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Publication number
WO2020204485A1
WO2020204485A1 PCT/KR2020/004201 KR2020004201W WO2020204485A1 WO 2020204485 A1 WO2020204485 A1 WO 2020204485A1 KR 2020004201 W KR2020004201 W KR 2020004201W WO 2020204485 A1 WO2020204485 A1 WO 2020204485A1
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WIPO (PCT)
Prior art keywords
resource pool
bitmap
slot
case
terminal
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PCT/KR2020/004201
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English (en)
Korean (ko)
Inventor
윤성준
Original Assignee
주식회사 아이티엘
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Priority claimed from KR1020190100545A external-priority patent/KR20200114976A/ko
Application filed by 주식회사 아이티엘 filed Critical 주식회사 아이티엘
Publication of WO2020204485A1 publication Critical patent/WO2020204485A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • the present invention relates to a method and apparatus for configuring a resource pool in a wireless communication system. Specifically, the present invention relates to a method and apparatus for configuring a resource pool for a terminal performing sidelink communication.
  • ITU International Telecommunication Union
  • IMT International Mobile Telecommunication
  • 5G 5G
  • the 3GPP (3rd Generation Partnership Project) NR New Radio
  • 3GPP 3rd Generation Partnership Project
  • NR New Radio
  • the present invention can provide a method and apparatus for configuring a resource pool in a wireless communication system.
  • the present invention can provide a method and apparatus for configuring a resource pool for a terminal performing sidelink communication in a wireless communication system.
  • the present invention can provide a method and apparatus for transmitting or receiving through a resource pool configured by a terminal performing sidelink communication in a wireless communication system.
  • the present invention can provide a method and apparatus for indicating a resource pool based on a predetermined time unit in a wireless communication system.
  • the present invention can provide a method and apparatus for indicating a resource pool through a plurality of steps in a wireless communication system.
  • the present invention can provide a method for a terminal to communicate with another terminal through a sidelink.
  • the method for the terminal to communicate with another terminal is the step of the terminal receiving at least one of resource pool period information, bitmap information of the resource pool, and symbol level indication information through higher layer signaling from the base station, and the terminal Checking the resource pool based on the information received from the base station, the terminal selecting a data transmission resource among time resources included in the identified resource pool, and the terminal communicating sidelink with other terminals through the selected data resource It may include the step of performing.
  • the terminal receives resource pool period information, bitmap information based on the first unit, and symbol level indication information in the first unit through higher layer signaling from the base station, and the resource pool is A final resource pool may be indicated based on symbol level indication information among resource pools indicated by the bitmap based on the first unit and indicated based on the bitmap based on the first unit.
  • the first unit may be set to any one of 1 ms, 5 ms, 2.5 ms, 1,25 ms, and 0.625 ms.
  • the terminal transmits resource pool period information, bitmap information based on a first unit, bitmap information based on a slot unit, and symbol level indication information in a slot through higher layer signaling from the base station.
  • the resource pool is indicated through a bitmap based on a first unit, indicated through a bitmap based on a slot unit among resource pools indicated based on a bitmap based on the first unit, and indicated through a bitmap based on the slot
  • the final resource pool may be indicated on the basis of symbol level indication information among the resource pools indicated on the basis.
  • the first unit may be 1 ms.
  • the terminal receives resource pool period information, slot-based bitmap information, and symbol level indication information in the slot through higher layer signaling from the base station, and the resource pool is A final resource pool may be indicated based on symbol level indication information among resource pools indicated through a map and indicated based on a bitmap based on a slot.
  • the resource pool is indicated on the basis of the candidate resource pool within the resource pool period, but the candidate resource pool is set to a time domain corresponding to the resource pool period without considering the SSB, or
  • the resource pool may be set in a corresponding time domain excluding the first SSB within the resource pool period, or the candidate resource pool may be set in a corresponding time domain excluding the SSB within 20 ms within the resource pool period.
  • a method and apparatus for configuring a resource pool in a wireless communication system can be provided.
  • a method and apparatus for configuring a resource pool for a terminal performing sidelink communication in a wireless communication system can be provided.
  • a method and an apparatus for transmitting or receiving through a resource pool configured by a terminal performing sidelink communication in a wireless communication system can be provided.
  • a method and apparatus for indicating a resource pool based on a predetermined time unit in a wireless communication system can be provided.
  • a method and apparatus for indicating a resource pool through a plurality of steps in a wireless communication system can be provided.
  • FIG. 1 is a diagram for explaining a V2X scenario to which the present disclosure can be applied.
  • FIG. 2 is a diagram for explaining a V2X scenario to which the present disclosure can be applied.
  • FIG. 3 is a diagram for explaining a V2X scenario to which the present disclosure can be applied.
  • FIG. 4 is a diagram illustrating a V2X related service to which the present disclosure can be applied.
  • FIG. 5 is a diagram showing a frame structure for downlink/uplink transmission to which the present disclosure can be applied.
  • FIG. 6 is a diagram illustrating a resource grid and a resource block to which the present disclosure can be applied.
  • FIG. 7 is a diagram illustrating a slot based on a slot configuration period to which the present disclosure can be applied.
  • FIG. 8 is a diagram illustrating a slot based on a slot configuration period to which the present disclosure can be applied.
  • FIG. 9 is a diagram illustrating a resource pool period and a candidate resource pool to which the present disclosure can be applied.
  • FIG. 10 is a diagram illustrating a resource pool period and a candidate resource pool to which the present disclosure can be applied.
  • FIG. 11 is a diagram illustrating an indication method at a symbol level to which the present disclosure can be applied.
  • FIG. 12 is a diagram illustrating a slot configuration to which the present disclosure can be applied.
  • FIG. 13 is a diagram illustrating an operation of a base station and a terminal to which the present disclosure can be applied.
  • FIG. 14 is a diagram illustrating an operation of a base station and a terminal to which the present disclosure can be applied.
  • 15 is a diagram illustrating an operation of a base station and a terminal to which the present disclosure can be applied.
  • 16 is a diagram illustrating a configuration of a base station apparatus and a terminal apparatus to which the present disclosure can be applied.
  • 17 is a diagram illustrating configurations of a base station apparatus and a terminal apparatus to which the present disclosure can be applied.
  • a method and apparatus for configuring a resource pool in a wireless communication system can be provided.
  • the method for the first terminal to communicate with the second terminal through the sidelink includes resource pool period information, bitmap information of the resource pool, and symbol level indication through higher layer signaling from the base station by the first terminal.
  • Receiving at least one or more of the information the first terminal checking a resource pool based on the information received from the base station, the first terminal data among time resources included in the identified resource pool It may include selecting a transmission resource, and performing sidelink communication with the second terminal through the first terminal through the selected data resource.
  • a component when a component is said to be “connected”, “coupled” or “connected” with another component, it is not only a direct connection relationship, but an indirect connection relationship in which another component exists in the middle. It can also include.
  • a certain component when a certain component “includes” or “have” another component, it means that other components may be further included rather than excluding other components unless otherwise stated. .
  • first and second are used only for the purpose of distinguishing one component from other components, and do not limit the order or importance of the components unless otherwise stated. Accordingly, within the scope of the present disclosure, a first component in one embodiment may be referred to as a second component in another embodiment, and similarly, a second component in one embodiment is a first component in another embodiment. It can also be called.
  • components that are distinguished from each other are intended to clearly describe each feature, and do not necessarily mean that the components are separated. That is, a plurality of components may be integrated to be formed in one hardware or software unit, or one component may be distributed in a plurality of hardware or software units. Therefore, even if not stated otherwise, such integrated or distributed embodiments are also included in the scope of the present disclosure.
  • components described in various embodiments do not necessarily mean essential components, and some may be optional components. Accordingly, an embodiment consisting of a subset of components described in an embodiment is also included in the scope of the present disclosure. In addition, embodiments including other elements in addition to the elements described in the various embodiments are included in the scope of the present disclosure.
  • this specification describes a wireless communication network, and the work performed in the wireless communication network is performed in the process of controlling the network and transmitting data in a system (for example, a base station) that governs the wireless communication network, or The work can be done at a terminal coupled to the network.
  • a system for example, a base station
  • BS base station
  • eNB eNodeB
  • gNB gNodeB
  • AP access point
  • UE User Equipment
  • MS Mobile Station
  • MSS Mobile Subscriber Station
  • SS Subscriber Station
  • non-AP STA non-AP STA
  • transmitting or receiving a channel includes the meaning of transmitting or receiving information or signals through the corresponding channel.
  • transmitting the control channel means transmitting control information or signals through the control channel.
  • transmitting a data channel means transmitting data information or signals through the data channel.
  • NR system is used for the purpose of distinguishing a system to which various examples of the present disclosure are applied from an existing system, but the scope of the present disclosure is not limited by such terms.
  • the NR system supports various subcarrier spacing (SCS) in consideration of various scenarios, service requirements, and potential system compatibility.
  • SCS subcarrier spacing
  • the NR system has multiple channels to overcome poor channel environments such as high path-loss, phase-noise, and frequency offset that occur on a high carrier frequency. It is possible to support transmission of a physical signal/channel through a beam of.
  • the NR system can support applications such as enhanced Mobile Broadband (eMBB), Massive Machine Type Communications (mMTC)/ultra Machine Type Communications (uMTC), and Ultra Reliable and Low Latency Communications (URLLC).
  • eMBB enhanced Mobile Broadband
  • mMTC Massive Machine Type Communications
  • uMTC ultra Machine Type Communications
  • URLLC Ultra Reliable and Low Latency Communications
  • the term NR system is used as an example of a wireless communication system, but the term NR system itself is not limited to the above-described features.
  • 5G mobile communication technology may be defined.
  • the 5G mobile communication technology may be defined to include not only the NR system described above, but also an existing Long Term Evolution-Advanced (LTE-A) system. That is, 5G mobile communication may be a technology that operates in consideration of not only the newly defined NR system but also backward compatibility with the previous system.
  • LTE-A Long Term Evolution-Advanced
  • the sidelink field of 5G may include both a sidelink in an LTE system and a sidelink technology in an NR system.
  • the sidelink field may be an essential field for improving performance through ultra-high reliability and ultra-low delay, and integrating new and various services.
  • V2X may be vehicle-based communication.
  • the concept of a vehicle is changing from a simple means of transportation to a new platform.
  • IT technologies are being grafted into vehicles, and various V2X services are provided based on this.
  • services such as prevention of traffic accidents, improvement of traffic environment, autonomous driving and remote driving are provided.
  • the need for development and application of sidelink-related technologies is increasing.
  • communication from the base station to the terminal may be downlink, and the communication from the terminal to the base station may be uplink.
  • communication between the terminals as well as communication between the base station and the terminal may be required, and communication from the terminal to the terminal may be the aforementioned sidelink.
  • V2X communication between vehicles or communication with vehicles and other objects (objects other than base stations, such as a pedestrian UE or a UE-type roadside unit (RSU))
  • RSU UE-type roadside unit
  • 1 to 3 are diagrams showing a V2X scenario.
  • FIG. 1 may be a scenario in which communication is performed based on the above-described sidelink.
  • FIG. 2 may be a V2X operation scenario using communication with a terminal (or vehicle) and a base station.
  • FIG. 3 may be a scenario in which a V2X operation is performed using both the above-described sidelink and communication with the base station.
  • the terminal described below may be a vehicle.
  • the terminal is uniformly referred to, but the terminal may be a vehicle for V2X.
  • the terminal may refer to a device capable of performing sidelink and communication with a base station, and is not limited to the above-described embodiment. However, in the following, it is referred to as a terminal for convenience of description.
  • D2D Device to Device
  • ProSe may refer to a proximity service for a terminal performing D2D communication
  • SL sidelink
  • SCI Segment Control Information
  • a physical sidelink shared channel PSSCH
  • PSCCH physical sidelink control channel
  • the PSBCH Physical Sidelink Broadcast Channel
  • PSDCH Physical Sidelink Discovery Channel
  • SLSS Sidelink Synchronization Signal
  • PSSID Physical Sidelink Synchronization Identity
  • (Sidelink group destination identity) is ID information for distinguishing a sidelink group, May be ID information for sidelink synchronization described above.
  • SA, TB, TTI and RB in Table 1 may be terms used in the same way as existing LTE.
  • V2V may refer to vehicle-to-vehicle communication
  • V2P to vehicle-to-pedestrian communication
  • V2I/N may refer to vehicle-to-infrastructure/network communication. This will be described later.
  • control information transmitted from a terminal to another terminal in V2X communication may be SA.
  • the above-described control information may be SCI.
  • the above-described control information is a sidelink.
  • the control information may be transmitted through a PSCCH, which is a channel through which control information is transmitted in the sidelink.
  • data transmitted from a terminal to another terminal in V2X communication may be configured in TB units.
  • transmission may be performed through the PSSCH, which is a channel through which the above-described data is transmitted.
  • the operation mode may be defined according to control information for V2X communication or direct link (eg, D2D, ProSe, or SL) communication and a resource allocation method for data transmission.
  • the base station resource scheduling mode is a base station (eNodeB) or a relay node (relay node) scheduling the resources used by the terminal to transmit V2X (or direct link) control information and/or data. It can be a mode. Through this, the terminal may transmit V2X (or direct link) control information and/or data, and this mode may be the aforementioned base station resource scheduling mode.
  • a base station or a relay node transmits sidelink (or direct link) control information and/or scheduling information for resources to be used for data transmission through downlink control information (DCI) to sidelink (or direct link). It can be provided to the transmitting terminal. Accordingly, the sidelink (or direct link) transmitting terminal transmits sidelink (or direct link) control information and data to the sidelink (or direct link) receiving terminal, and the sidelink (or direct link) receiving terminal is The sidelink (or direct link) data may be received based on the (or direct link) control information.
  • DCI downlink control information
  • the terminal selects resources used by the terminal to transmit control information and data by itself, and such resource selection is performed by a resource pool (i.e., a resource candidate). Set), the terminal may be determined by sensing or the like. Through this, the terminal may transmit control information and data, and this mode may be a terminal autonomous resource selection mode.
  • a resource pool i.e., a resource candidate. Set
  • a sidelink (or direct link) transmitting terminal transmits sidelink (or direct link) control information and data to a sidelink (or direct link) receiving terminal from a resource selected by it, and sidelink (or direct link)
  • the receiving terminal may receive sidelink (or direct link) data based on sidelink (or direct link) control information.
  • the above-described base station resource scheduling mode may be referred to as mode 1 in sidelink (or direct link) communication for D2D or the like.
  • the above-described base station resource scheduling mode may be referred to as mode 3 in sidelink communication for V2X and the like.
  • the terminal autonomous resource selection mode may be referred to as mode 2 in sidelink (or direct link) communication for D2D or the like.
  • the terminal autonomous resource selection mode may be referred to as mode 4 in sidelink communication for V2X and the like.
  • V2X communication for convenience of description, but is not limited thereto.
  • the present invention may be equally applied to communication based on a direct link such as D2D and ProSe, and is not limited to the above-described embodiment.
  • V2X may be a term collectively referring to V2V, V2P, and V2I/N.
  • each of V2V, V2P, and V2I/N may be defined as shown in Table 1 below, but is not limited thereto. That is, Table 2 below is only an example, and is not limited thereto.
  • V2X communication may include PC5-based communication, which is an interface for sidelink communication.
  • Table 3 and FIG. 1 may be a scenario supporting V2X operation based only on the PC5 interface (or SL).
  • (a) of FIG. 1 may be a V2V operation, (b) a V2I operation, and (c) a V2P operation. That is, in FIG. 1, the communication may be performed based on the above-described sidelink, and communication may be performed without a base station.
  • Table 4 and FIG. 2 may be a scenario supporting V2X operation based only on a Uu interface (ie, an interface between a UE and an eNodeB).
  • a) of FIG. 2 may represent a V2V operation, (b) a V2I operation, and (c) a V2P operation. That is, it is possible to support V2X operation by using communication between the terminal and the base station.
  • Table 5 and FIG. 3 may be a scenario supporting a V2X operation using both a Uu interface and a PC5 interface (or SL). At this time, FIG. 3(a) may show scenario 3A of Table 5, and FIG. 3(b) may show scenario 3B of Table 5.
  • the terminal may transmit a V2X message to other terminals through a sidelink. Any one of the terminals receiving this may transmit a V2X message to the base station through the uplink.
  • the base station may receive the V2X message and transmit a message based on the V2X message to other nearby terminals through downlink.
  • the downlink may be performed through a broadcast method.
  • the terminal transmits a V2X message to the base station through uplink, and the base station may transmit at least one terminal or a roadside unit (RSU). Thereafter, the terminal or the RSU receiving the message may transmit a message to a plurality of neighboring terminals through a sidelink.
  • RSU roadside unit
  • both of FIG. 3(a) and FIG. 3(b) may support V2X operation using both communication and sidelinks between the base station and the terminal, and are not limited to the above-described embodiment.
  • V2X communication may be performed through a base station or through direct communication between terminals.
  • transmission/reception may be performed through a Uu link, which is a communication interface between the base station of LTE and the terminal.
  • Uu link which is a communication interface between the base station of LTE and the terminal.
  • PC5 link which is a communication interface between the terminal and the terminal of LTE.
  • V2X communication may be performed using communication between a terminal and a base station and a sidelink between the terminal.
  • the sidelink may also have a difference between the sidelink in the existing system and the sidelink in the NR system.
  • the sidelink may also be changed in the NR system as a new system.
  • a method of transmitting DMRS-related information for V2X in an NR system based on the above-described characteristics will be described.
  • FIG. 4 is a diagram illustrating a service provided based on a sidelink.
  • a V2X-related service or an Internet of Things (IoT) service may be provided based on a 5G sidelink.
  • the 5G sidelink may be a concept including both a sidelink based on an existing LTE system and a sidelink considering an NR system. That is, it may be a service provided in consideration of the sidelink applied in each system, and is not limited to the above-described embodiment.
  • cluster driving may be a technology in which a plurality of vehicles dynamically form a group and operate similarly.
  • autonomous driving may be a technology for driving a vehicle based on fully automated or semi-automated.
  • the evolved sensor may be a technology that collects and exchanges data acquired from a sensor or a video image.
  • the remote driving may be a technology for a technology and an application for remote control of a vehicle. That is, the above-described services may be provided as services based on V2X. However, the above-described service is only an example, and is not limited to the above-described embodiment.
  • FIGS. 5 and 6 are diagrams illustrating a frame structure and a resource block for an NR system.
  • FIG. 5 is a diagram showing an NR frame structure and a numerology according to an embodiment of the present invention.
  • the basic unit of time domain in NR is Can be At this time, ego, Can be In addition, May be a constant for a multiple relationship between the NR time unit and the LTE time unit.
  • a reference time unit, in LTE Can be defined.
  • the time structure of a frame for downlink and uplink (Downlink/Uplink, DL/UL) transmission is Can have At this time, one frame It consists of 10 subframes corresponding to time. The number of consecutive OFDM symbols per subframe is Can be In addition, each frame is divided into two half frames, and the half frame may be composed of 0 to 4 subframes and 5 to 9 subframes. In this case, half frame 1 may be composed of 0 to 4 sub-frames, and half frame 2 may be composed of 5 to 9 sub-frames.
  • the transmission timing of the uplink transmission frame i is determined based on Equation 1 below based on the downlink reception timing in the terminal.
  • Equation 1 May be a TA offset value caused by a difference in duplex mode or the like. Basically in FDD (Frequency Division Duplex) Has 0, but in TDD (Time Division Duplex), considering the margin for the DL-UL switching time It can be defined as a fixed value.
  • FIG. 6 is a diagram illustrating a resource grid and a resource block.
  • a resource element in a resource grid may be indexed according to subcarrier spacing.
  • one resource grid may be generated for each antenna port and for each subcarrier spacing. Uplink and downlink transmission and reception may be performed based on the corresponding resource grid.
  • One resource block is composed of 12 resource elements in the frequency domain, and an index for one resource block per 12 resource elements as shown in Equation 2 below ( ) Can be configured.
  • the index for the resource block may be utilized within a specific frequency band or system bandwidth.
  • Numerology can be configured in various ways to satisfy various services and requirements of the NR system.
  • a plurality of SCSs may be supported.
  • the new neurology for NR systems that includes supporting multiple SCSs is 3GHz or less to solve the problem that a wide bandwidth could not be used in the existing frequency range such as 700MHz or 2GHz or carrier.
  • 3GHz ⁇ 6GHz or 6GHZ ⁇ 52.6GHz can operate in the same frequency range or carrier.
  • the scope of the present disclosure is not limited thereto.
  • the numanology may be defined based on subcarrier spacing (SCS), CP length, and the number of OFDM symbols per slot used in an OFDM (Orthogonal Frequency Division Multiplexing) system have.
  • SCS subcarrier spacing
  • CP length the number of OFDM symbols per slot used in an OFDM (Orthogonal Frequency Division Multiplexing) system have.
  • the above-described values may be provided to the terminal through higher layer parameters DL-BWP-mu and DL-BWP-cp (DL) and UL-BWP-mu and UL-BWP-cp (UL).
  • a normal slot may be defined as a basic time unit used to transmit one data and control information basically in the NR system.
  • the length of a general slot may basically consist of the number of 14 OFDM symbols.
  • a subframe has an absolute time length corresponding to 1 ms in the NR system and can be used as a reference time for the length of another time period.
  • a time interval such as an LTE subframe may be required in the NR standard.
  • data may be transmitted based on a transmission time interval (TTI) that is a unit time, and the TTI may be configured in units of one or more subframes.
  • TTI transmission time interval
  • one subframe may be set to 1 ms, and 14 OFDM symbols (or 12 OFDM symbols) may be included.
  • a non-slot may be defined in NR.
  • the non-slot may mean a slot having a number smaller than a normal slot by at least one symbol.
  • the delay time may be reduced through a non-slot having a smaller number of symbols than a normal slot.
  • the number of OFDM symbols included in the non-slot may be determined in consideration of the frequency range. For example, in a frequency range of 6 GHz or higher, a non-slot having a length of 1 OFDM symbol may be considered.
  • the number of OFDM symbols defining a non-slot may include at least two OFDM symbols.
  • the range of the number of OFDM symbols included in the non-slot may be configured as a mini-slot length up to (general slot length) -1.
  • the number of OFDM symbols may be limited to 2, 4, or 7 symbols, but is not limited to the above-described embodiment.
  • Subcarrier spacing corresponding to 1 and 2 is used, and subcarrier spacing corresponding to 3 and 4 may be used in an unlicensed band exceeding 6 GHz.
  • Table 7 shows for each subcarrier spacing setting in the case of a normal CP.
  • Number of OFDM symbols per slot represents.
  • Table 7 shows the number of OFDM symbols per slot, the number of slots per frame, and the number of slots per subframe according to each subcarrier spacing value, as provided in Table 6.
  • Table 7 shows the above-described values based on a general slot having 14 OFDM symbols.
  • the extended CP may be applied.
  • Table 8 shows the number of OFDM symbols per slot for extended CP May represent each value based on 12 normal slots. In this case, referring to Table 8, in the case of an extended CP following 60 kHz subcarrier spacing, the number of symbols per slot, the number of slots per frame, and the number of slots per subframe may be indicated.
  • one subframe may correspond to 1 ms on the time axis.
  • one slot may correspond to 14 symbols on the time axis.
  • one slot may correspond to 7 symbols on the time axis. Accordingly, the number of slots and symbols that can be considered may be set differently within 10 ms corresponding to one radio frame.
  • Table 9 may indicate the number of slots and the number of symbols according to each SCS. In this case, as an example, the SCS of 480 KHz in Table 9 below may not be considered, and is not limited to the above-described embodiment.
  • a TDD UL-DL configuration may be set in an NR sidelink system.
  • the base station may transmit "TDD-UL-DL-ConfigurationCommon" to terminals through higher-end signaling such as Radio Resource Control (RRC).
  • RRC Radio Resource Control
  • a TDD UL-DL configuration may be commonly applied to terminals based on "TDD-UL-DL-ConfigurationCommon".
  • the TDD UL-DL configuration may be configured as pattern 1 as shown in FIG. 7.
  • the TDD UL-DL configuration may be composed of pattern 1 and pattern 2 as shown in FIG. 8. That is, the base station may semi-statically instruct the UEs of the TDD UL-DL configuration through RRC signaling.
  • Pmsec is subcarrier spacing. about It may contain four slots. At this time, referring to FIG. 7, the first of the S slots The slots may contain only downlink symbols. Also, the last of the S slots Slots may contain only uplink symbols. Also, the first Some symbols after the number of slots may be downlink symbols. At this time, the first After two symbols Symbols may be downlink symbols. Also, the last of the S slots Some symbols before the number of slots may be uplink symbols. At this time, the last Previous symbols Symbols may be downlink symbols.
  • the rest The symbols may be flexible symbols, and the flexible symbols may be set as downlink symbols or uplink symbols.
  • the first symbol may be the first symbol in an even-numbered frame. That is, as shown in FIG. 7, the TDD UL-DL configuration may be set as pattern 1 based on the P period.
  • information on pattern 1 and pattern 2 in relation to "TDD-UL-DL-ConfigurationCommon" may be as shown in Table 11 below. More specifically, compared to pattern 1 The value may be the same as the value applicable to P.
  • TDD-UL-DL configuration configuration
  • the first of the S2 slots The slots may contain only downlink symbols.
  • the last of the S2 slots Slots may contain only uplink symbols. first Some symbols after the number of slots may be used for downlink. At this time, After two symbols Symbols may be downlink symbols. Also, the last Some symbols may be used for uplink before the number of slots. At this time, the last Previous symbols Symbols may be uplink symbols. Remainder The symbols may be flexible symbols.
  • TDD-UL-DL configuration in addition to "TDD-UL-DL-ConfigurationCommon" which is commonly indicated to the terminal as semi-static, TDD-UL-DL configuration may be indicated specifically for the terminal.
  • the base station may semi-statically instruct each terminal to "TDD-UL-DL-ConfigDedicated" through higher-end signaling such as RRC in a terminal-specific TDD UL-DL configuration.
  • information indicated as "TDD-UL-DL-ConfigDedicated" may be overridden for the flexible symbol in the TDD-UL-DL configuration indicated by "TDD-UL-DL-ConfigurationCommon".
  • the configuration information for the TDD UL-DL indicated as "TDD-UL-DL-ConfigDedicated” is overwritten with respect to a flexible symbol per slot on a plurality of slots provided by "TDD-UL-DL-ConfigurationCommon". It can be used, and is not limited to the above-described embodiment.
  • the base station is TDD UL- Configuration information for the DL can be indicated. That is, the base station can dynamically indicate TDD UL-DL configuration information through DCI.
  • a quasi-statically configured resource pool based on at least one or more of "TDD-UL-DL-ConfigurationCommon" and "TDD-UL-DL-ConfigDedicated" TDD UL It may be a method of configuring a resource pool based on configuration information for -DL, and it will be described.
  • the two types of synchronization signals may include a Primary Synchronization Signal (NR-PSS) and a Secondary Synchronization Signal (NR-SSS).
  • the NR-PSS can be used for synchronization on an initial symbol boundary for an NR cell.
  • NR-SSS may be used to detect an NR cell ID.
  • the bandwidth for transmission of PSS/SSS and/or PBCH (Physical Broadcast CHannel) in a wireless communication system (e.g., LTE/LTE-A system) prior to the NR system corresponds to six physical resource blocks (PRBs). 1.08MHz could be used.
  • PRBs Physical Resource blocks
  • the NR system may use a wider transmission bandwidth compared to the previous wireless communication system to transmit NR-PSS/SSS and/or NR-PBCH (Physical Broadcast Channel).
  • NR-PSS/SSS and/or NR-PBCH Physical Broadcast Channel
  • SCS subcarrier spacing
  • one of 15KHz and 30KHz may be considered as a default SCS.
  • one of 120 KHz and 240 KHz may be considered as a default SCS, but is not limited to the above-described embodiment.
  • the default SCS set and the minimum carrier bandwidth assumed by the terminal during initial access may be defined as follows.
  • the terminal may basically assume a bandwidth of 15 kHz SCS and 5 MHz.
  • a bandwidth of 30 kHz SCS and 10 MHz may be assumed in a specific band, and is not limited to the above-described embodiment.
  • the terminal may assume a bandwidth of 120 kHz SCS and 10 MHz.
  • SCS supported for data and/or control information may be different according to a specific frequency band.
  • SCS 15 kHz, 30 kHz, and 60 kHz
  • SCS 15 kHz, 30 kHz, and 60 kHz
  • SCS when operating between 1 GHz and 6 GHz, SCS of 15 kHz, 30 kHz, and 60 kHz may be supported.
  • SCS when operating between 24 GHz and 52.6 GHz, SCS of 60 kHz and 120 kHz may be supported.
  • 240 kHz may not be supported for data, and the supported SCS may be determined according to a band.
  • NR-PSS, NR-SSS, and/or NR-PBCH may be transmitted in a Synchronization Signal (SS) block.
  • SSB may mean a time-frequency resource region including all of NR-PSS, NR-SSS, and/or NR-PBCH.
  • one or more SSBs may constitute an SS burst.
  • One SS burst may be defined as including a predetermined number of SSBs, which may be referred to as the duration of the SS burst, but is not limited to the above-described embodiment.
  • one or more SSBs within one SS burst may be continuous or discontinuous. Further, one or more SSBs in one SS burst may be the same or different from each other.
  • one or more SS bursts may constitute an SS burst set.
  • One SS burst set may include a predetermined period and a predetermined number of SS bursts. In this case, the number of SS bursts in the SS burst set may be finite.
  • the transmission time of the SS burst set may be defined periodically or may be defined aperiodically.
  • one or more subcarrier spacing may be predefined for each synchronization signal (eg, NR-PSS, NR-SSS, NR-PBCH).
  • the applicable SCS may be one or more of 15, 30, 120, or 240 kHz.
  • the SCS for NR-PSS, NR-SSS, or NR-PBCH may be the same.
  • one or more frequency ranges may be given, and different frequency ranges may overlap each other.
  • one neurology may be defined for a specific frequency range, or a plurality of neurology may be defined.
  • one or a plurality of subcarrier spacing (SCS) may be defined for a specific frequency range.
  • transmission of the SS burst set may be periodic.
  • one or a plurality of SSBs may be configured as one SS burst.
  • SSBs constituting one SS burst may be continuously allocated or discontinuously allocated in the time or frequency domain, and are not limited to the above-described embodiment.
  • one or a plurality of SS bursts may be configured as one SS burst set. From the viewpoint of the terminal, transmission of the SS burst set is periodic, and the terminal may assume a default transmission period value during at least initial cell selection for each specific carrier frequency. The terminal may receive updated information about the SS burst set transmission period from the base station.
  • transmission of SSBs within the SS burst set may be limited to a 5ms window regardless of the SS burst set period.
  • the number of possible candidates for the SSB position within the 5ms window may be L.
  • the transmission of SSBs can be performed in a 5ms window within the SS burst set.
  • the start point of the SSB burst set for SSB transmission may be determined based on the SSB offset value.
  • the SSB periodicity may be set to 20 ms by default. That is, a default value for the SS burst set period may be set to 20 ms.
  • the SSB period may be differently set by higher layer signaling.
  • the SSB period may be set to any one of 5ms, 10ms, 20ms, 40ms, 80ms, or 160ms by higher layer signaling.
  • the higher layer signaling may be RRC signaling.
  • the terminal may perform transmission or reception through a slot. In this case, the terminal may use all symbols in the slot for sidelink communication. In addition, as an example, the terminal may use a subset of consecutive symbols for sidelink communication as consecutive symbols in a slot, but is not limited thereto.
  • a general CP Cyclic Prefix
  • the extended CP may be supported at 60 kHz, and is not limited to the above-described embodiment.
  • a resource pool may be periodically configured in connection with uplink transmission.
  • the resource pool may be repeated at a specific period (P) after a certain offset (O) in consideration of an environment of asynchronization with adjacent cells. That is, the resource pool may be repeated every cycle (P) of the resource pool.
  • the period of the resource pool may be indicated to the terminal through higher layer signaling.
  • the period of the resource pool may be indicated to the terminal through RRC signaling.
  • the cycle of the resource pool may be indicated by any one of a plurality of values.
  • the resource pool may be configured and indicated within 10240 ms based on a system frame number (SFN) or a direct frame number (DFN) index.
  • SFN system frame number
  • DFN direct frame number
  • the configured resource pool may be indicated based on a certain period (or a certain unit).
  • the resource pool may be indicated based on a bitmap.
  • the resource pool may be indicated at a certain period (or a certain unit) based on the length of the bitmap, and the configuration may be repeated.
  • the period P of the resource pool may be set to one of a plurality of values based on the above-described 10240ms value in order to efficiently indicate the resource pool.
  • the above-described plurality of values may be composed of values divided by 10240 ms.
  • the plurality of values may be any one of 20 ms, 40 ms, 80 ms, and 160 ms, but is not limited thereto.
  • a plurality of values may be configured in consideration of the above-described SSB allocation period, but are not limited thereto. That is, the period of the resource pool may be set to any one of a plurality of values, and may be indicated to the terminal through higher layer signaling.
  • the period of the resource pool may be a specific period and may be a fixed value.
  • the period of the resource pool may be fixed to 80 ms in the same manner as 80 ms, which is the period of the master information block (MIB).
  • the period of the resource pool may be fixed to 20 ms in consideration of the default value of the SSB allocation period. In this case, when the period of the resource pool is fixed as described above, separate signaling for indicating the period of the resource pool may not be required.
  • a candidate resource pool may be configured within the aforementioned resource pool period.
  • the candidate resource pool may be a unit in which the resource pool is indicated, which will be described later.
  • the configuration of the candidate resource pool may consider SSB. More specifically, the SSB may be excluded when the resource pool is substantially indicated. Therefore, when configuring the candidate resource pool, the SSB may not be considered in advance. In addition, as an example, when configuring a candidate resource pool, it may be excluded through a bit map indication later in consideration of the SSB.
  • the candidate resource pool may not consider SSB.
  • the cycle of the resource pool may be 80 ms.
  • the candidate resource pool may be configured in the same manner as the cycle of the resource pool without considering SSB.
  • the bitmap indication when the bitmap indication is performed in the candidate resource pool, it may be set as an SSB value and excluded from the resource pool. This will be described later. That is, when the candidate resource pool does not consider SSB, the candidate resource pool may be set to a region corresponding to Pms, which is a period of the resource pool. For example, in "A" of FIG.
  • the candidate resource pool may be configured in a time domain corresponding to 80 ms within each resource pool period.
  • the candidate resource pool may be configured as a time domain corresponding to 20 ms within each resource pool period (20 ms).
  • the candidate resource pool may be configured in consideration of only the SSB mapped first within the resource pool period. More specifically, the candidate resource pool is configured by excluding only the SSBs that can be mapped for the first time within the resource pool period, and other SSBs may be excluded through a bitmap indication later. For example, in the bitmap indication corresponding to the candidate resource pool, the SSB may be indicated as a value of 0 and may be excluded, which will be described later. That is, when the period of the resource pool is P, the time domain corresponding to the candidate resource pool may be P-5 ms. As a more specific example, referring to "B" of FIG. 9, the period P of the resource pool may be 80 ms.
  • the period P of the resource pool may be 20 ms.
  • the candidate resource pool may consider all SSBs that may be mapped every 20 ms within the resource pool period.
  • 20ms may be a default value of the SSB allocation period.
  • the candidate resource pool may be configured to consider all SSBs that may be mapped every 20 ms within the resource pool period.
  • all SSBs that may be mapped every 20 ms within each resource pool period may be excluded.
  • SSBs that are not excluded through the above description may be excluded by setting a value of 0 when performing a bitmap indication in the candidate resource pool.
  • the candidate resource pool may be set to a corresponding time domain based on Equation 3 below within each resource pool period.
  • the SSB may correspond to 5 ms
  • the time domain corresponding to the candidate resource pool may be as shown in Equation 3 below.
  • a method of substantially indicating a resource pool in the candidate resource pool may be required based on the above description.
  • the number of slots within 10 ms and the number of symbols within 10 ms may differ according to subcarrier spacing.
  • the number of slots included in the slot configuration period based on FIGS. 7 and 8 described above may vary according to subcarrier spacing.
  • only downlink symbols may be included in the first consecutive slots within the slot configuration period.
  • only uplink symbols may be included in the last consecutive slots within the slot configuration period, as described above.
  • a bitmap indication unit indicating whether to be included in the resource pool in the candidate resource pool may be set differently, and embodiments 1 to 3 will be described below based on the above. .
  • the bit map indication may be configured in units of Ams within the candidate resource pool. That is, the bitmap indication indicating whether to be included in the resource pool may be configured in units of Ams. In this case, an additional indication of a symbol level applied to each Ams unit may be required.
  • the actual resource pool may be indicated first as a bitmap in units of Ams. In this case, for Ams having a value of 1 in the bitmap, a resource pool may be substantially indicated through an additional indication at the symbol level as described above. That is, the actual resource pool may be indicated through the instruction of step 2 in the candidate resource pool.
  • the base station may indicate the bitmap through higher layer signaling. As an example, the base station may indicate a bitmap through RRC signaling.
  • the base station may indicate values included in a continuous symbol indication field in Ams through higher layer signaling. That is, the base station may indicate values included in the continuous symbol indication field in Ams through RRC signaling.
  • the terminal may check the actual resource pool through the period of the resource pool, bitmap indication information configured in units of Ams, and additional indications at the symbol level, and exchange data packets with other terminals based on this. .
  • the bitmap may be applied in units of Ams within the candidate resource pool.
  • a slot may be 1 ms at 15 kHz
  • a slot may be 0.5 ms at 30 kHz
  • a slot may be 0.25 ms at 60 kHz
  • a slot may be 0.125 ms at 120 kHz.
  • 1 ms is possible only when a multiple value of the slots is possible
  • the candidate resource pool is Pms. That is, as shown in FIGS. 9 and 10 described above, the candidate resource pool may be configured in a time domain corresponding to the period of the resource pool without considering the SSB.
  • each 1ms interval may correspond to each bit value. Accordingly, a 1ms interval corresponding to a bit value of 1 may belong to a resource pool in units of Ams.
  • the candidate resource pool is P-5ms. That is, as described above, the candidate resource pool may be configured except for the first matched SSB within the resource pool period.
  • each 1ms interval may correspond to each bit value. Accordingly, a 1ms interval corresponding to a bit value of 1 may belong to a resource pool in units of Ams.
  • the candidate resource pool is [P-(P/20)*5]ms. That is, as described above, the candidate resource pool may be configured except for matching SSBs in 20 ms.
  • each 1ms interval may correspond to each bit value. Accordingly, a 1ms interval corresponding to a bit value of 1 may belong to a resource pool in units of Ams.
  • a slot may be 1 ms at 15 kHz
  • a slot may be 0.5 ms at 30 kHz
  • a slot may be 0.25 ms at 60 kHz
  • a slot may be 0.125 ms at 120 kHz.
  • the candidate resource pool is Pms. That is, as shown in FIGS. 9 and 10 described above, the candidate resource pool may be configured in a time domain corresponding to the period of the resource pool without considering the SSB.
  • each 5ms interval may correspond to each bit value. Accordingly, a 5ms interval corresponding to a bit value of 1 may belong to a resource pool in units of Ams.
  • the candidate resource pool is P-5ms. That is, as described above, the candidate resource pool may be configured except for the first matched SSB within the resource pool period.
  • the length of the bitmap may be (P-5)/5. That is, since a bitmap is configured for each Ams unit, the length of the bitmap may be (P-5)/5.
  • the length of the bitmap may be 15.
  • the length of the bitmap may be 3.
  • each 5ms interval may correspond to each bit value. Accordingly, a 5ms interval corresponding to a bit value of 1 may belong to a resource pool in units of Ams.
  • the candidate resource pool is [P-(P/20)*5]ms. That is, as described above, the candidate resource pool may be configured except for matching SSBs in 20 ms.
  • the length of the bitmap may be [P-(P/20)*5]/5. That is, since a bitmap is configured for each Ams unit, the length of the bitmap may be [P-(P/20)*5]/5.
  • the length of the bitmap may be 12.
  • each 5ms interval may correspond to each bit value. Accordingly, a 5ms interval corresponding to a bit value of 1 may belong to a resource pool in units of Ams.
  • a slot may be 1 ms at 15 kHz
  • a slot may be 0.5 ms at 30 kHz
  • a slot may be 0.25 ms at 60 kHz
  • a slot may be 0.125 ms at 120 kHz.
  • 2.5 ms is possible only when a multiple of the slots is possible
  • the candidate resource pool is Pms. That is, as shown in FIGS. 9 and 10 described above, the candidate resource pool may be configured in a time domain corresponding to the period of the resource pool without considering the SSB.
  • each 2.5 ms interval may correspond to each bit value. Accordingly, a 2.5 ms interval corresponding to a bit value of 1 may belong to a resource pool in units of Ams.
  • the candidate resource pool is P-5ms. That is, as described above, the candidate resource pool may be configured except for the first matched SSB within the resource pool period.
  • the length of the bitmap may be (P-5)/2.5. That is, since a bitmap is configured for each Ams unit, the length of the bitmap may be (P-5)/2.5.
  • the length of the bitmap may be 30.
  • the length of the bitmap may be 6.
  • each 2.5 ms interval may correspond to each bit value. Accordingly, a 2.5 ms interval corresponding to a bit value of 1 may belong to a resource pool in units of Ams.
  • the candidate resource pool is [P-(P/20)*5]ms. That is, as described above, the candidate resource pool may be configured except for matching SSBs in 20 ms.
  • the length of the bitmap may be [P-(P/20)*5]/2.5. That is, since a bitmap is configured for each Ams unit, the length of the bitmap may be [P-(P/20)*5]/2.5.
  • the length of the bitmap may be 24.
  • each 2.5 ms interval may correspond to each bit value. Accordingly, a 2.5 ms interval corresponding to a bit value of 1 may belong to a resource pool in units of Ams.
  • a slot may be 1 ms at 15 kHz
  • a slot may be 0.5 ms at 30 kHz
  • a slot may be 0.25 ms at 60 kHz
  • a slot may be 0.125 ms at 120 kHz.
  • the candidate resource pool is Pms. That is, as shown in FIGS. 9 and 10 described above, the candidate resource pool may be configured in a time domain corresponding to the period of the resource pool without considering the SSB.
  • each 1.25 ms interval may correspond to each bit value. Accordingly, a 1.25 ms interval corresponding to a bit value of 1 may belong to a resource pool in units of Ams.
  • the candidate resource pool is P-5ms. That is, as described above, the candidate resource pool may be configured except for the first matched SSB within the resource pool period.
  • the length of the bitmap may be (P-5)/1.25. That is, a bitmap is configured for each Ams unit, and the length of the bitmap may be (P-5)/1.25.
  • the length of the bitmap may be 60.
  • the length of the bitmap may be 12.
  • each 1.25 ms interval may correspond to each bit value. Accordingly, a 1.25 ms interval corresponding to a bit value of 1 may belong to a resource pool in units of Ams.
  • the candidate resource pool is [P-(P/20)*5]ms. That is, as described above, the candidate resource pool may be configured except for matching SSBs in 20 ms.
  • the length of the bitmap may be [P-(P/20)*5]/1.25. That is, since a bitmap is configured for each Ams unit, the length of the bitmap may be [P-(P/20)*5]/1.25.
  • the length of the bitmap may be 48.
  • the length of the bitmap may be 12.
  • each 1.25 ms interval may correspond to each bit value. Accordingly, a 1.25 ms interval corresponding to a bit value of 1 may belong to a resource pool in units of Ams.
  • a slot may be 1 ms at 15 kHz
  • a slot may be 0.5 ms at 30 kHz
  • a slot may be 0.25 ms at 60 kHz
  • a slot may be 0.125 ms at 120 kHz.
  • 0.625 ms is possible only when a multiple of the slots is possible
  • the candidate resource pool is Pms. That is, as shown in FIGS. 9 and 10 described above, the candidate resource pool may be configured in a time domain corresponding to the period of the resource pool without considering the SSB.
  • each 0.625 ms interval may correspond to each bit value. Accordingly, a 0.625 ms interval corresponding to a bit value of 1 may belong to a resource pool in units of Ams.
  • the candidate resource pool is P-5ms. That is, as described above, the candidate resource pool may be configured except for the first matched SSB within the resource pool period.
  • the length of the bitmap may be (P-5)/0.625. That is, a bitmap is configured for each Ams unit, and the length of the bitmap may be (P-5)/0.625.
  • the length of the bitmap may be 120.
  • the length of the bitmap may be 24.
  • each 0.625 ms interval may correspond to each bit value. Accordingly, a 0.625 ms interval corresponding to a bit value of 1 may belong to a resource pool in units of Ams.
  • the candidate resource pool is [P-(P/20)*5]ms. That is, as described above, the candidate resource pool may be configured except for matching SSBs in 20 ms.
  • the length of the bitmap may be [P-(P/20)*5]/0.625. That is, since a bitmap is configured for each Ams unit, the length of the bitmap may be [P-(P/20)*5]/0.625.
  • the length of the bitmap may be 96.
  • the length of the bitmap may be 24.
  • each 0.625 ms interval may correspond to each bit value. Accordingly, a 0.625 ms interval corresponding to a bit value of 1 may belong to a resource pool in units of Ams.
  • the actual resource pool may be additionally indicated at the symbol level within the unit of Ams. That is, as described above, a substantial resource pool may be indicated at a symbol level within Ams having a bit value of 1.
  • r may be a start symbol and end symbol index of a symbol group.
  • r may be equal to Equation 5 below.
  • r And May be a start symbol and an end symbol of the first symbol group.
  • r And May be a start symbol and an end symbol of the second symbol group, and is not limited to the above-described embodiment.
  • the number of necessary bits may be determined based on the aforementioned A value and subcarrier spacing.
  • the required number of bits may range from 11 bits to 32 bits based on Equation 2 above.
  • the above-described symbol level unit indication may be performed only for Ams indicated to be included in the resource pool because the bit value is indicated as 1 in the unit of Ams, as described above.
  • symbols in Ams may be configured as shown in FIG. 12(a) or 12(b).
  • a downlink slot, an uplink slot, and a flexible slot are included in a time interval corresponding to the unit of Ams.
  • the unit of Ams may correspond to 0.625ms, 1.25ms, 2.5ms, 5ms, or 1ms as described above.
  • Ams may be indicated in units of symbol level based on the above description.
  • the base station 1310 may provide information on a resource pool to terminals through higher layer signaling. For example, based on the above description, the base station 1310 may instruct the terminal A 1320 a resource pool period through higher layer signaling.
  • the resource pool period may be a preset value and may be a fixed value, and is not limited to the above-described embodiment.
  • the candidate resource pool may be configured in a time domain corresponding to Pms without considering the SSB based on the resource pool period.
  • the candidate resource pool may be configured in a time domain corresponding to P-5ms except for the first SSB within the resource pool period.
  • the candidate resource pool may be configured in a time domain corresponding to [P-(P/20)*5]ms in consideration of the SSB in units of 20ms, as described above.
  • the base station may provide the bitmap indication information of the resource pool to the terminal A 1320 through higher layer signaling.
  • the bitmap indication may be configured based on the unit of Ams.
  • the base station may indicate the bitmap information to the terminal A 1320 through higher layer signaling.
  • the base station may indicate bitmap information through RRC signaling.
  • the base station may provide information on the additional indication at the symbol level to the terminal A 1320 through higher layer signaling.
  • the additional indication at the symbol level may be a value belonging to a continuous symbol indication field in Ams, and may be indicated based on Equations 4 and 5 described above.
  • higher layer signaling may be RRC signaling.
  • the terminal A 1320 may check the bitmap from the bitmap indication of the transmitted resource pool.
  • Terminal A 1320 may check the resource pool in units of Ams by applying the length Lbitmap bitmap to the candidate resource pool within each resource pool period.
  • terminal A 1320 checks the parameter values included in the continuous symbol indication field in the unit time domain of each Ams (bit value of 1 Ams) belonging to the resource pool, and finally contiguous symbols belonging to the resource pool. Can be checked, as described above.
  • terminal A 1320 may select a resource to transmit data from among time resources corresponding to the finally indicated resource pool. For example, a resource through which terminal A 1320 transmits data may be selected by the base station. As another example, the resource through which the terminal A 1320 transmits data may be selected by the terminal itself, and is not limited to the above-described embodiment. After that, terminal A 1320 may transmit data to terminal B 1330 through the selected resource.
  • a candidate resource pool may be configured within each resource pool period.
  • the bit map indication may be configured in units of 1 ms within the candidate resource pool. That is, the bitmap indication indicating whether to be included in the resource pool may be configured in units of 1 ms.
  • an additional bitmap indication may be applied whether or not to be included in the resource pool in a slot unit within each 1ms.
  • a resource pool may be indicated through an additional indication on a symbol level basis in each slot unit. That is, the bitmap instruction of the first step may be performed in units of 1 ms. Also, the bitmap indication in the second step may be performed in units of slots.
  • the third step may be indicated through an additional indication at the symbol level, through which the actual resource pool may be indicated.
  • an indication for a slot unit may be performed as an additional bitmap as described above.
  • the resource pool may be substantially indicated through the additional indication at the symbol level as described above. That is, the actual resource pool may be indicated through the three-step instruction within the candidate resource pool.
  • the base station may indicate the first bitmap through higher layer signaling.
  • the base station may indicate the first bitmap through RRC signaling.
  • the base station may indicate the second bitmap through higher layer signaling.
  • the base station may indicate the second bitmap through RRC signaling.
  • the base station may indicate values included in a continuous symbol indication field in a slot through higher layer signaling. That is, the base station may indicate values included in the symbol indication field consecutive in the slot through RRC signaling.
  • the first bitmap indication may be indicated in units of 1 ms.
  • the bitmap may be applied in a 1ms unit within the candidate resource pool.
  • the bitmap indication may be performed in units of 1 ms.
  • a slot may be 1 ms at 15 kHz
  • a slot may be 0.5 ms at 30 kHz
  • a slot may be 0.25 ms at 60 kHz
  • a slot may be 0.125 ms at 120 kHz.
  • 1 ms is possible only when a multiple value of the slots is possible, and when subcarrier spacing is 15 kHz, 30 kHz, 60 kHz, and 120 kHz, it may be indicated in units of 1 ms.
  • the candidate resource pool is Pms. That is, as shown in FIGS. 9 and 10 described above, the candidate resource pool may be configured in a time domain corresponding to the period of the resource pool without considering the SSB.
  • each 1ms interval may correspond to each bit value. Accordingly, a 1 ms interval corresponding to a bit value of 1 may belong to the resource pool.
  • the candidate resource pool is P-5ms. That is, as described above, the candidate resource pool may be configured except for the first matched SSB within the resource pool period.
  • each 1ms interval may correspond to each bit value. Accordingly, a 1 ms interval corresponding to a bit value of 1 may belong to the resource pool.
  • the candidate resource pool is [P-(P/20)*5]ms. That is, as described above, the candidate resource pool may be configured except for matching SSBs in 20 ms.
  • each 1ms interval may correspond to each bit value. Accordingly, a 1 ms interval corresponding to a bit value of 1 may belong to the resource pool.
  • an additional bitmap can be considered.
  • a substantial resource pool may be indicated through an additional bitmap in units of slots in a 1ms interval corresponding to a bit value of 1.
  • the length of the additional bitmap may be 2.
  • the slot may correspond to the 0.5 ms time domain. Therefore, the length of the bitmap may be 2.
  • the length of the additional bitmap may be 4.
  • the slot may correspond to the 0.25 ms time domain. Therefore, the length of the bitmap may be 4.
  • the length of the additional bitmap may be 8.
  • the slot may correspond to a 0.125 ms time domain. Therefore, the length of the bitmap may be 8.
  • the slot may correspond to the 1 ms time domain, and thus the actual resource pool may be indicated through the first bitmap.
  • a substantial resource pool may be indicated through an additional indication at the symbol level applicable to the slot unit.
  • r may be a start symbol and end symbol index of a symbol group. .
  • the above-described symbol level unit indication may be performed only for a slot in which a bit value is indicated as 1 in units of 1 ms and a value corresponding to an additional bitmap is 1 as a slot unit, This is as described above.
  • the symbol index is L to the last symbol Can be instructed to be finally included in the resource pool.
  • the base station may indicate the above-described L value to the terminal through higher layer signaling.
  • higher layer signaling may be RRC signaling.
  • the L value is 2-bit signaling. Either of them can be indicated. For example, May be indicated by higher layer signaling in the base station. As another example, May be a predefined value, and is not limited to the above-described embodiment.
  • the first in Ams Dog and/or last Only four slots are indicated through the above-described L value, and all symbols in other slots may be finally included in the resource pool.
  • a bit value is indicated as 1 in units of 1 ms
  • a slot in which a value corresponding to an additional bitmap is 1 in units of slots
  • Equation 6 and Equations In the case of indicating based on 7 or indicating through the above-described L value, it is necessary to indicate all slots having a bit value of 1. In this case, considering the slot configuration period or the slot configuration, the above-described instruction may be unnecessary for some slots.
  • the beginning within Ams Dog and/or last Only four slots are indicated through the above-described L value, and all symbols in other slots may be finally included in the resource pool.
  • A may be determined based on subcarrier spacing.
  • the A value may be a preset value.
  • the A value may be indicated by the base station through higher layer signaling.
  • the A value may be indicated by the base station through RRC signaling.
  • the above Is 0 or It can be signaled by a 1-bit value indicating.
  • the value may be a preset value (eg, 1).
  • the value may be indicated by the base station through higher layer signaling.
  • the value may be indicated by the base station through RRC signaling.
  • Is 0, It can be signaled by a 2-bit value indicating.
  • the value may be a preset value.
  • the value may be indicated by the base station through higher layer signaling.
  • the value may be indicated by the base station through RRC signaling.
  • the above Is 0 or It can be signaled by a 1-bit value indicating.
  • the value may be a preset value (eg, 1).
  • the value may be indicated by the base station through higher layer signaling.
  • the value may be indicated by the base station through RRC signaling.
  • Is 0, It can be signaled by a 2-bit value indicating.
  • the value may be a preset value.
  • the value may be indicated by the base station through higher layer signaling.
  • the value may be indicated by the base station through RRC signaling.
  • the first For slots having 1 bit value from a symbol having a symbol index of L to the last symbol with respect to 14 symbols in the slot may be finally included in the resource pool.
  • the base station may indicate the above-described L value to the terminal through higher layer signaling.
  • higher layer signaling may be RRC signaling.
  • the last For slots having 1 bit value from a symbol having a symbol index of L to the last symbol with respect to 14 symbols in the slot may be finally included in the resource pool.
  • last For slots having 1 bit value from the first symbol to a symbol having a symbol index of 13-L for 14 symbols in the slot, it may be finally included in the resource pool.
  • the base station may indicate the above-described L value to the terminal through higher layer signaling.
  • higher layer signaling may be RRC signaling.
  • the base station 1410 may provide information on a resource pool to terminals through higher layer signaling. For example, based on the above description, the base station 1410 may instruct the terminal A 1420 of the resource pool period through higher layer signaling.
  • the resource pool period may be a preset value and may be a fixed value, and is not limited to the above-described embodiment.
  • the candidate resource pool may be configured in a time domain corresponding to Pms without considering the SSB based on the resource pool period.
  • the candidate resource pool may be configured in a time domain corresponding to P-5ms except for the first SSB within the resource pool period.
  • the candidate resource pool may be configured in a time domain corresponding to [P-(P/20)*5]ms in consideration of the SSB in units of 20ms, as described above.
  • the base station may provide the bitmap indication information of the resource pool to the terminal A 1420 through higher layer signaling.
  • the bitmap indication information may include first bitmap indication information and second bitmap indication information.
  • the first bitmap indication may be configured based on the unit of 1ms.
  • the base station may indicate the first bitmap information to UE A 1420 through higher layer signaling.
  • the second bitmap indication may be configured on a slot basis.
  • the base station may indicate the second bitmap information to the terminal A 1420 through higher layer signaling.
  • the base station may indicate bitmap information through RRC signaling.
  • the base station may provide information on the additional indication at the symbol level to the terminal A 1420 through higher layer signaling.
  • the additional indication at the symbol level may be a value belonging to a continuous symbol indication field within the slot, and may be indicated based on Equations 6 and 7 described above.
  • higher layer signaling may be RRC signaling.
  • terminal A 1420 may check the first bitmap from the bitmap indication of the transmitted resource pool.
  • Terminal A 1420 is the length of the candidate resource pool within each resource pool period By applying a bitmap, you can check the resource pool in units of 1ms.
  • terminal A 1420 may check the second bitmap in units of slots within each 1ms (1 ms which is a bit value) belonging to the resource pool.
  • Terminal A (1420) is a length within each 1ms belonging to the resource pool By applying a bitmap, you can check the resource pool in units of slots.
  • the terminal A 1420 checks the parameter values included in the continuous symbol indication field in the time domain of each slot belonging to the resource pool (the slot with a bit value of 1), Symbols can be checked, as described above.
  • terminal A 1420 may select a resource to transmit data from among time resources corresponding to the finally indicated resource pool. For example, a resource through which terminal A 1420 transmits data may be selected by the base station. As another example, the resource through which the terminal A 1420 transmits data may be selected by the terminal itself, and is not limited to the above-described embodiment. Thereafter, terminal A 1420 may transmit data to terminal B 1430 through the selected resource.
  • a candidate resource pool may be configured within each resource pool period.
  • the bit map indication may be configured in a slot unit within the candidate resource pool. That is, the bitmap indication indicating whether to be included in the resource pool may be configured in units of slots.
  • a resource pool may be indicated through an additional indication on a symbol level basis in each slot unit. That is, the bitmap indication of the first step may be performed in units of slots.
  • the second step may be indicated through an additional indication at the symbol level, through which the actual resource pool may be indicated. In this case, an indication may be performed in units of symbol level for a slot having a value of 1 in the bitmap. That is, the actual resource pool may be indicated through the instruction of step 2 in the candidate resource pool.
  • the base station may indicate the bitmap through higher layer signaling.
  • the base station may indicate a bitmap through RRC signaling.
  • the base station may indicate values included in a continuous symbol indication field in a slot through higher layer signaling. That is, the base station may indicate values included in the symbol indication field consecutive in the slot through RRC signaling.
  • subcarrier spacing is 15 kHz
  • the slot may be 1 ms.
  • the candidate resource pool is Pms. That is, as shown in FIGS. 9 and 10 described above, the candidate resource pool may be configured in a time domain corresponding to the period of the resource pool without considering the SSB.
  • the length of the bitmap may be P.
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • the candidate resource pool is P-5ms. That is, as described above, the candidate resource pool may be configured except for the first matched SSB within the resource pool period.
  • the length of the bitmap may be P-5.
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • the candidate resource pool is [P-(P/20)*5]ms. That is, as described above, the candidate resource pool may be configured except for matching SSBs in 20 ms.
  • the length of the bitmap may be [P-(P/20)*5].
  • the bitmap may be repeated once within [P-(P/20)*5]ms.
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • the slot may be 0.5 ms.
  • the candidate resource pool is Pms. That is, as shown in FIGS. 9 and 10 described above, the candidate resource pool may be configured in a time domain corresponding to the period of the resource pool without considering the SSB.
  • the length of the bitmap may be P.
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • the candidate resource pool is P-5ms. That is, as described above, the candidate resource pool may be configured except for the first matched SSB within the resource pool period.
  • the length of the bitmap may be P-5.
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • the candidate resource pool is [P-(P/20)*5]ms. That is, as described above, the candidate resource pool may be configured except for matching SSBs in 20 ms.
  • the length of the bitmap may be [P-(P/20)*5].
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • subcarrier spacing is 60 kHz
  • the slot may be 0.25 ms.
  • the candidate resource pool is Pms. That is, as shown in FIGS. 9 and 10 described above, the candidate resource pool may be configured in a time domain corresponding to the period of the resource pool without considering the SSB.
  • the length of the bitmap may be P.
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • the candidate resource pool is P-5ms. That is, as described above, the candidate resource pool may be configured except for the first matched SSB within the resource pool period.
  • the length of the bitmap may be P-5.
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • the candidate resource pool is [P-(P/20)*5]ms. That is, as described above, the candidate resource pool may be configured except for matching SSBs in 20 ms.
  • the length of the bitmap may be [P-(P/20)*5].
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • subcarrier spacing is 120 kHz
  • the slot may be 0.125 ms.
  • the candidate resource pool is Pms. That is, as shown in FIGS. 9 and 10 described above, the candidate resource pool may be configured in a time domain corresponding to the period of the resource pool without considering the SSB.
  • the length of the bitmap may be P.
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • the candidate resource pool is P-5ms. That is, as described above, the candidate resource pool may be configured except for the first matched SSB within the resource pool period.
  • the length of the bitmap may be P-5.
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • the candidate resource pool is [P-(P/20)*5]ms. That is, as described above, the candidate resource pool may be configured except for matching SSBs in 20 ms.
  • the length of the bitmap may be [P-(P/20)*5].
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • a substantial resource pool may be indicated through an additional indication at the symbol level applicable to the slot unit.
  • r may be a start symbol and end symbol index of a symbol group. .
  • r may be equal to Equation 9 below.
  • N 14 +1.
  • M 4.
  • based on the above-described r And May be a start symbol and an end symbol of the first symbol group.
  • r And May be a start symbol and an end symbol of the second symbol group, and is not limited to the above-described embodiment.
  • the above-described symbol level unit indication may be performed only for slots in which the bit value corresponding to the bitmap is 1 as a slot unit, as described above.
  • the base station may indicate the above-described L value to the terminal through higher layer signaling.
  • higher layer signaling may be RRC signaling.
  • And May be indicated by higher layer signaling in the base station.
  • And May be a predefined value, and is not limited to the above-described embodiment.
  • the first in Ams Dog and/or last Only four slots are indicated through the above-described L value, and all symbols in other slots may be finally included in the resource pool.
  • the L value is indicated or the above-described L value is indicated based on Equation 8 and Equation 9 in a symbol level unit.
  • the above-described instruction may be unnecessary for some slots.
  • the beginning within Ams Dog and/or last Only four slots are indicated through the above-described L value, and all symbols in other slots may be finally included in the resource pool.
  • A may be determined based on subcarrier spacing.
  • the A value may be a preset value.
  • the A value may be indicated by the base station through higher layer signaling.
  • the A value may be indicated by the base station through RRC signaling.
  • the above Is 0 or It can be signaled by a 1-bit value indicating.
  • the value may be a preset value (eg, 1).
  • the value may be indicated by the base station through higher layer signaling.
  • the value may be indicated by the base station through RRC signaling.
  • Is 0, , or It can be signaled by a 2-bit value indicating.
  • the value may be a preset value.
  • the value may be indicated by the base station through higher layer signaling.
  • the value may be indicated by the base station through RRC signaling.
  • the above Is 0 or It can be signaled by a 1-bit value indicating.
  • the value may be a preset value (eg, 1).
  • the value may be indicated by the base station through higher layer signaling.
  • the value may be indicated by the base station through RRC signaling.
  • Is 0, , or It can be signaled by a 2-bit value indicating.
  • the value may be a preset value.
  • the value may be indicated by the base station through higher layer signaling.
  • the value may be indicated by the base station through RRC signaling.
  • the first For slots having 1 bit value from a symbol having a symbol index of L to the last symbol with respect to 14 symbols in the slot may be finally included in the resource pool.
  • the base station may indicate the above-described L value to the terminal through higher layer signaling.
  • higher layer signaling may be RRC signaling.
  • And May be indicated by higher layer signaling in the base station.
  • And May be a predefined value, and is not limited to the above-described embodiment.
  • the last For slots having 1 bit value from a symbol having a symbol index of L to the last symbol with respect to 14 symbols in the slot may be finally included in the resource pool.
  • last For slots having 1 bit value from the first symbol to a symbol having a symbol index of 13-L for 14 symbols in the slot, it may be finally included in the resource pool.
  • the base station may indicate the above-described L value to the terminal through higher layer signaling.
  • higher layer signaling may be RRC signaling.
  • And May be indicated by higher layer signaling in the base station.
  • And May be a predefined value, and is not limited to the above-described embodiment.
  • the base station 1510 may provide information on a resource pool to terminals through higher layer signaling. For example, based on the above description, the base station 1510 may instruct the terminal A 1520 of the resource pool period through higher layer signaling.
  • the resource pool period may be a preset value and may be a fixed value, and is not limited to the above-described embodiment.
  • the candidate resource pool may be configured in a time domain corresponding to Pms without considering the SSB based on the resource pool period.
  • the candidate resource pool may be configured in a time domain corresponding to P-5ms except for the first SSB within the resource pool period.
  • the candidate resource pool may be configured in a time domain corresponding to [P-(P/20)*5]ms in consideration of the SSB in units of 20ms, as described above.
  • the base station may provide the bitmap indication information of the resource pool to the terminal A 1520 through higher layer signaling.
  • the bitmap indication may be configured on a slot basis.
  • the base station may indicate the bitmap information to the terminal A 1520 through higher layer signaling.
  • the base station may indicate bitmap information through RRC signaling.
  • the base station may provide information on the additional indication at the symbol level to the terminal A 1520 through higher layer signaling.
  • the additional indication at the symbol level may be a value belonging to a continuous symbol indication field within the slot, and may be indicated based on Equations 8 and 9 described above.
  • higher layer signaling may be RRC signaling.
  • terminal A 1520 may check the bitmap from the bitmap indication of the transmitted resource pool.
  • Terminal A 1520 may check the resource pool in units of slots by applying the length Lbitmap bitmap to the candidate resource pool within each resource pool period.
  • terminal A 1520 checks the parameter values included in the continuous symbol indication field in the time domain of each slot belonging to the resource pool (a slot with a bit value of 1), and finally, the consecutive symbols belonging to the resource pool. Can be checked, as described above.
  • terminal A 1520 may select a resource to transmit data from among time resources corresponding to the finally indicated resource pool. For example, a resource through which terminal A 1520 transmits data may be selected by the base station. As another example, the resource through which the terminal A 1520 transmits data may be selected by the terminal itself, and is not limited to the above-described embodiment. Thereafter, terminal A 1520 may transmit data to terminal B 1530 through the selected resource.
  • the base station may indicate the above-described L value to the terminal through higher layer signaling.
  • higher layer signaling may be RRC signaling.
  • the L value is 2-bit signaling. Either of them can be indicated. For example, May be indicated by higher layer signaling in the base station. As another example, May be a predefined value, and is not limited to the above-described embodiment.
  • the first in Ams Dog and/or last Only four slots are indicated through the above-described L value, and all symbols in other slots may be finally included in the resource pool.
  • Equations 8 and Equations In the case of indicating based on 9 or indicating through the aforementioned L value, it is necessary to indicate all slots having a bit value of 1. In this case, considering the slot configuration period or the slot configuration, the above-described instruction may be unnecessary for some slots.
  • the beginning within Ams Dog and/or last Only four slots are indicated through the above-described L value, and all symbols in other slots may be finally included in the resource pool.
  • A may be determined based on subcarrier spacing.
  • the A value may be a preset value.
  • the A value may be indicated by the base station through higher layer signaling.
  • the A value may be indicated by the base station through RRC signaling.
  • the above Is 0 or It can be signaled by a 1-bit value indicating.
  • the value may be a preset value (eg, 1).
  • the value may be indicated by the base station through higher layer signaling.
  • the value may be indicated by the base station through RRC signaling.
  • It can be signaled by a 2-bit value indicating.
  • the value may be a preset value.
  • the value may be indicated by the base station through higher layer signaling.
  • the value may be indicated by the base station through RRC signaling.
  • the above Is 0 or It can be signaled by a 1-bit value indicating.
  • the value may be a preset value (eg, 1).
  • the value may be indicated by the base station through higher layer signaling.
  • the value may be indicated by the base station through RRC signaling.
  • K2 is 0, It can be signaled by a 2-bit value indicating.
  • the value may be a preset value.
  • the value may be indicated by the base station through higher layer signaling.
  • the value may be indicated by the base station through RRC signaling.
  • the first For slots having 1 bit value from a symbol having a symbol index of L to the last symbol with respect to 14 symbols in the slot may be finally included in the resource pool.
  • the base station may indicate the above-described L value to the terminal through higher layer signaling.
  • higher layer signaling may be RRC signaling.
  • the last For slots having 1 bit value from a symbol having a symbol index of L to the last symbol with respect to 14 symbols in the slot may be finally included in the resource pool.
  • last For slots having 1 bit value from the first symbol to a symbol having a symbol index of 13-L for 14 symbols in the slot, it may be finally included in the resource pool.
  • the base station may indicate the above-described L value to the terminal through higher layer signaling.
  • higher layer signaling may be RRC signaling.
  • the base station 1510 may provide information on a resource pool to terminals through higher layer signaling. For example, based on the above description, the base station 1510 may instruct the terminal A 1520 of the resource pool period through higher layer signaling.
  • the resource pool period may be a preset value and may be a fixed value, and is not limited to the above-described embodiment.
  • the candidate resource pool may be configured in a time domain corresponding to Pms without considering the SSB based on the resource pool period.
  • the candidate resource pool may be configured in a time domain corresponding to P-5ms except for the first SSB within the resource pool period.
  • the candidate resource pool may be configured in a time domain corresponding to [P-(P/20)*5]ms in consideration of the SSB in units of 20ms, as described above.
  • the base station may provide the bitmap indication information of the resource pool to the terminal A 1520 through higher layer signaling.
  • the bitmap indication may be configured on a slot basis.
  • the base station may indicate the bitmap information to the terminal A 1520 through higher layer signaling.
  • the base station may indicate bitmap information through RRC signaling.
  • the base station may provide information on the additional indication at the symbol level to the terminal A 1520 through higher layer signaling.
  • the additional indication at the symbol level may be a value belonging to a continuous symbol indication field within the slot, and may be indicated based on Equations 8 and 9 described above.
  • higher layer signaling may be RRC signaling.
  • terminal A 1520 may check the bitmap from the bitmap indication of the transmitted resource pool.
  • Terminal A (1520) is a length for the candidate resource pool within each resource pool period By applying a bitmap, you can check the resource pool in units of slots.
  • terminal A 1520 checks the parameter values included in the continuous symbol indication field in the time domain of each slot belonging to the resource pool (a slot with a bit value of 1), and finally, the consecutive symbols belonging to the resource pool. Can be checked, as described above.
  • terminal A 1520 may select a resource to transmit data from among time resources corresponding to the finally indicated resource pool. For example, a resource through which terminal A 1520 transmits data may be selected by the base station. As another example, the resource through which the terminal A 1520 transmits data may be selected by the terminal itself, and is not limited to the above-described embodiment. Thereafter, terminal A 1520 may transmit data to terminal B 1530 through the selected resource.
  • a candidate resource pool may be configured within each resource pool period.
  • the bit map indication may be configured in a slot unit within the candidate resource pool. That is, the bitmap indication indicating whether to be included in the resource pool may be configured in units of slots.
  • the bitmap indication indicating whether to be included in the resource pool may be configured in consideration of all slots. That is, the bitmap indication indicating whether to be included in the resource pool may be configured in consideration of uplink (UL), downlink (DL), and flexible slots.
  • a bitmap indication indicating whether to be included in the resource pool may be configured only for specific slots. In this case, as an example, the specific slot may be an uplink (UL) and/or a flexible slot.
  • a bitmap indicating whether or not to be included in the resource pool based on the above-described method it may not be considered that the repetition of the bitmap is not divided and thus cannot be uniform unlike the existing system. . That is, when configuring a bitmap indicating whether to be included in the resource pool based on the above-described method, a synchronization-related subframe (or a slot in the case of NR), a subframe other than the uplink (or in the case of NR), unlike the conventional one Slot), and a reserved subframe (reserved subframe), or in the case of NR, there may be no need to exclude a reserved slot.
  • the bitmap may be applied within the SSB period.
  • 10240 ms may be a multiple of the SSB period (ie, divided by the SSB period), and slots related to synchronization in advance within the SSB period may be excluded.
  • the bitmap indication when all of the uplink (UL), downlink (DL), and flexible slots are considered in the bitmap indication indicating whether to be included in the resource pool, slots other than the uplink in the bitmap indication Can be excluded.
  • the bitmap indication may indicate other slots, but the indicated value may be set to 0.
  • the bitmap indication may be excluded when it is not an uplink slot even when indicating other slots.
  • bitmap indication when only a specific slot (UL and/or Flexible) is considered in the bitmap indication indicating whether to be included in the resource pool, other slots other than the uplink may be excluded from the bitmap.
  • the bitmap indication may not be completely divided within the SSB period.
  • the last bitmap may be partially applied to the first part.
  • the bitmap instruction when performed based on the above description, it may be divided within 10240 ms.
  • the resource pool period may also be repeated.
  • a slot after Pms from the corresponding slot is also included in the resource pool based on a period.
  • a period for example, in the case of an existing system (eg LTE-V2X), even if a specific subframe is included in the resource pool due to the reserved subframe even if the reserved subframe is regularly excluded as much as possible, subframes after Ams from the corresponding subframe are also It may not be clear that it is included in the resource pool. That is, a certain period may not be guaranteed by the reserved sub-frame.
  • the base station may indicate the bitmap through higher layer signaling.
  • the base station may indicate a bitmap through RRC signaling.
  • subcarrier spacing is 15 kHz
  • the slot may be 1 ms.
  • the candidate resource pool is Pms. That is, as shown in FIGS. 9 and 10 described above, the candidate resource pool may be configured in a time domain corresponding to the period of the resource pool without considering the SSB.
  • the length of the bitmap may be P.
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • the candidate resource pool is P-5ms. That is, as described above, the candidate resource pool may be configured except for the first matched SSB within the resource pool period.
  • the length of the bitmap may be P-5.
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • downlink slots may not be included in the resource pool even if the bit value is 1.
  • a flexible slot in TDD it may be included in the resource pool only when it is indicated that the flexible slot belongs to the resource pool.
  • the flexible slot may be indicated to belong to a resource pool by upper end signaling (RRC).
  • RRC upper end signaling
  • the flexible slot may be indicated in advance to be included in the resource pool, and is not limited to the above-described embodiment.
  • the bit value is 1 in the above-described bitmap, it may not be included in the resource pool.
  • an uplink/flexible slot in TDD when it is indicated that an uplink/flexible slot including K or more UL symbols is also included in the resource pool by higher-end signaling (RRC) (or in advance If indicated), it may be included in the resource pool when the bit value is 1.
  • RRC higher-end signaling
  • the uplink/flexible slot may be a slot excluded from the beginning. Therefore, even if the bit value of the corresponding slot is 1, it may not be included in the resource pool, and is not limited to the above-described embodiment.
  • the slot may be 0.5 ms.
  • the candidate resource pool is Pms. That is, as shown in FIGS. 9 and 10 described above, the candidate resource pool may be configured in a time domain corresponding to the period of the resource pool without considering the SSB.
  • the length of the bitmap may be P.
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • the candidate resource pool is P-5ms. That is, as described above, the candidate resource pool may be configured except for the first matched SSB within the resource pool period.
  • the length of the bitmap may be P-5.
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • the candidate resource pool is [P-(P/20)*5]ms. That is, as described above, the candidate resource pool may be configured except for matching SSBs in 20 ms.
  • the length of the bitmap may be [P-(P/20)*5].
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • downlink slots may not be included in the resource pool even if the bit value is 1.
  • a flexible slot in TDD it may be included in the resource pool only when it is indicated that the flexible slot belongs to the resource pool.
  • the flexible slot may be indicated to belong to a resource pool by upper end signaling (RRC).
  • RRC upper end signaling
  • the flexible slot may be indicated in advance to be included in the resource pool, and is not limited to the above-described embodiment.
  • the bit value is 1 in the above-described bitmap, it may not be included in the resource pool.
  • an uplink/flexible slot in TDD when it is indicated that an uplink/flexible slot including K or more UL symbols is also included in the resource pool by higher-end signaling (RRC) (or in advance If indicated), it may be included in the resource pool when the bit value is 1.
  • RRC higher-end signaling
  • the uplink/flexible slot may be a slot excluded from the beginning. Therefore, even if the bit value of the corresponding slot is 1, it may not be included in the resource pool, and is not limited to the above-described embodiment.
  • subcarrier spacing is 60 kHz
  • the slot may be 0.25 ms.
  • the candidate resource pool is Pms. That is, as shown in FIGS. 9 and 10 described above, the candidate resource pool may be configured in a time domain corresponding to the period of the resource pool without considering the SSB.
  • the length of the bitmap may be P.
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • the candidate resource pool is P-5ms. That is, as described above, the candidate resource pool may be configured except for the first matched SSB within the resource pool period.
  • the length of the bitmap may be P-5.
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • the candidate resource pool is [P-(P/20)*5]ms. That is, as described above, the candidate resource pool may be configured except for matching SSBs in 20 ms.
  • the length of the bitmap may be [P-(P/20)*5].
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • subcarrier spacing is 120 kHz
  • the slot may be 0.125 ms.
  • the candidate resource pool is Pms. That is, as shown in FIGS. 9 and 10 described above, the candidate resource pool may be configured in a time domain corresponding to the period of the resource pool without considering the SSB.
  • the length of the bitmap may be P.
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • the candidate resource pool is P-5ms. That is, as described above, the candidate resource pool may be configured except for the first matched SSB within the resource pool period.
  • the length of the bitmap may be P-5.
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • the candidate resource pool is [P-(P/20)*5]ms. That is, as described above, the candidate resource pool may be configured except for matching SSBs in 20 ms.
  • the length of the bitmap may be [P-(P/20)*5].
  • each slot may correspond to a respective bit value. Accordingly, a slot corresponding to a bit value of 1 may belong to the resource pool.
  • downlink slots may not be included in the resource pool even if the bit value is 1.
  • a flexible slot in TDD it may be included in the resource pool only when it is indicated that the flexible slot belongs to the resource pool.
  • the flexible slot may be indicated to belong to a resource pool by upper end signaling (RRC).
  • RRC upper end signaling
  • the flexible slot may be indicated in advance to be included in the resource pool, and is not limited to the above-described embodiment.
  • the bit value is 1 in the above-described bitmap, it may not be included in the resource pool.
  • an uplink/flexible slot in TDD when it is indicated that an uplink/flexible slot including K or more UL symbols is also included in the resource pool by higher-end signaling (RRC) (or in advance If indicated), it may be included in the resource pool when the bit value is 1.
  • RRC higher-end signaling
  • the uplink/flexible slot may be a slot excluded from the beginning. Therefore, even if the bit value of the corresponding slot is 1, it may not be included in the resource pool, and is not limited to the above-described embodiment.
  • the candidate resource pool may be any one of the above-described Pms, (P-5)ms, and [P-(P/20)*5]ms cases.
  • specific slots may be slots excluding some slots within the candidate resource pool. More specifically, in the case of Pms, SSB-related slots may be excluded. In this case, for example, in the case of (P-5)ms and [P-(P/20)*5]ms, SSB-related slots may already be excluded.
  • slots other than the uplink slot may be excluded.
  • downlink slots may be excluded.
  • RRC higher-end signaling
  • an uplink/flexible slot including K or more uplink symbols by higher-end signaling is also included in the resource pool by higher-end signaling (RRC). It may not be excluded if it is indicated that it is possible (or if it is indicated in advance). On the other hand, if not, it can be excluded.
  • the uplink/flexible slot may be excluded without conditions, and is not limited to the above-described embodiment.
  • the length of the bitmap may be A.
  • the length of the bitmap may have different values according to the SCS. For example, when the SCS is doubled, the value of A may also be doubled. (For example, at 15khz In the case of, at 30Khz )
  • the value of A may be composed of a plurality of values within each SCS.
  • the A value may be indicated by higher layer signaling.
  • a bitmap having a length of the bitmap A may be repeatedly applied to a specific slot within the aforementioned candidate resource pool, as described above.
  • the last bitmap application may partially apply only the first part, as described above.
  • the bitmap may be repeatedly applied by int (N/A) times. In this case, the application of the last bitmap may be applied to only "N mod A" slots as much as "N mod A" in front of the bitmap to maintain a certain period.
  • the base station 1610 may provide information on a resource pool to terminals through higher layer signaling. For example, based on the above description, the base station 1610 may instruct the terminal A 1620 of the resource pool period through higher layer signaling.
  • the resource pool period may be a preset value and may be a fixed value, and is not limited to the above-described embodiment.
  • the candidate resource pool may be configured in a time domain corresponding to Pms without considering the SSB based on the resource pool period.
  • the candidate resource pool may be configured in a time domain corresponding to P-5ms except for the first SSB within the resource pool period.
  • the candidate resource pool may be configured in a time domain corresponding to [P-(P/20)*5]ms in consideration of the SSB in units of 20ms, as described above.
  • the base station may provide the bitmap indication information of the resource pool to the terminal A 1620 through higher layer signaling.
  • the bitmap indication may be configured on a slot basis.
  • the base station may indicate bitmap information to terminal A 1620 through higher layer signaling.
  • the base station may indicate bitmap information through RRC signaling.
  • the bitmap configuration may be configured in consideration of all slots or only a specific slot (UL and/or Flexble), as described above.
  • the terminal A 1620 may check the bitmap from the bitmap indication of the transmitted resource pool.
  • Terminal A 1620 is the length of the candidate resource pool within each resource pool period By applying a bitmap, you can check the resource pool in units of slots.
  • terminal A 1620 may select a resource to transmit data from among time resources corresponding to the finally indicated resource pool. For example, a resource through which terminal A 1620 transmits data may be selected by the base station. As another example, the resource through which the terminal A 1620 transmits data may be selected by the terminal itself, and is not limited to the above-described embodiment. After that, the terminal A 1620 may transmit data to the terminal B 1630 through the selected resource.
  • FIG. 17 is a diagram showing the configuration of a base station apparatus and a terminal apparatus according to the present disclosure.
  • the base station apparatus 1700 may include a processor 1720, an antenna unit 1712, a transceiver 1714, and a memory 1716.
  • the processor 1720 performs baseband-related signal processing and may include an upper layer processing unit 1730 and a physical layer processing unit 1740.
  • the upper layer processor 1730 may process an operation of a medium access control (MAC) layer, a radio resource control (RRC) layer, or a higher layer.
  • the physical layer processing unit 1740 may process an operation of a physical (PHY) layer (eg, uplink reception signal processing, downlink transmission signal processing, sidelink transmission signal processing, sidelink reception signal processing).
  • PHY physical
  • the processor 1720 may control the overall operation of the base station apparatus 1700.
  • the antenna unit 1712 may include one or more physical antennas, and may support multiple input multiple output (MIMO) transmission/reception when a plurality of antennas are included.
  • the transceiver 1714 may include a radio frequency (RF) transmitter and an RF receiver.
  • the memory 1716 may store information processed by the processor 1720, software related to the operation of the base station apparatus 1700, an operating system, an application, and the like, and may include components such as a buffer.
  • the processor 1720 of the base station 1700 may be configured to implement the operation of the base station in the embodiments described in the present invention.
  • the terminal device 1750 may include a processor 1770, an antenna unit 1762, a transceiver 1764, and a memory 1766. Meanwhile, as an example, in the present invention, communication between terminal devices may be performed based on sidelink communication. That is, in the present invention, each terminal device 1750 performing sidelink communication may be a device that performs sidelink communication with the terminal device 1750 as well as the base station device 1700, and is not limited to the above-described embodiment. Does not.
  • the processor 1770 performs baseband related signal processing and may include an upper layer processor 1780 and a physical layer processor 1790.
  • the upper layer processing unit 1780 may process an operation of a MAC layer, an RRC layer, or a higher layer.
  • the physical layer processing unit 1790 may process operations of the PHY layer (eg, downlink reception signal processing, uplink transmission signal processing, sidelink transmission signal processing, sidelink reception signal processing).
  • the processor 1770 may also control the overall operation of the terminal device 1750.
  • the antenna unit 1762 may include one or more physical antennas, and may support MIMO transmission and reception when including a plurality of antennas.
  • the transceiver 1764 may include an RF transmitter and an RF receiver.
  • the memory 1766 may store information processed by the processor 1770, software related to the operation of the terminal device 1750, an operating system, and an application, and may include components such as a buffer.
  • the processor 1770 of the terminal device 1750 may be configured to implement the operation of the terminal in the embodiments described in the present invention.
  • the processor 1720 of the base station apparatus 1700 may provide resource pool period information to the terminal apparatus 1750 through higher layer signaling, as described above.
  • the processor 1720 of the base station apparatus 1700 may provide bitmap indication information of the resource pool to the terminal apparatus 1750 through higher layer signaling, as described above.
  • the length of the bitmap can be automatically known through the bitmap indication information.
  • the bitmap indication information may be indicated in a predetermined time unit (eg, Ams, 1ms, slot), and the bitmap length may be determined based on at least one or more of a time unit and subcarrier spacing, which As described above.
  • the processor 1720 of the base station apparatus 1700 may provide symbol level additional indication information to the terminal apparatus 1750 through higher layer signaling.
  • the additional indication information at the symbol level may be a parameter value for a continuous symbol indication field within a certain time domain (eg, Ams, 1ms, slot), as described above.
  • the processor 1770 of the terminal device 1750 may receive higher layer signaling information from the base station device 1700 as described above.
  • the processor 1770 of the terminal device 1750 may select a resource for performing data transmission from the resource pool determined based on the above, and transmit the data transmission to the other terminal device 1750 based on this. And this is as described above.
  • the items described in the examples of the present invention may be equally applied, and redundant descriptions are omitted.
  • exemplary methods of the present disclosure are expressed as a series of operations for clarity of description, but this is not intended to limit the order in which steps are performed, and each step may be performed simultaneously or in a different order if necessary.
  • the illustrative steps may include additional steps, other steps may be included excluding some steps, or may include additional other steps excluding some steps.
  • various embodiments of the present disclosure may be implemented by hardware, firmware, software, or a combination thereof.
  • one or more ASICs Application Specific Integrated Circuits
  • DSPs Digital Signal Processors
  • DSPDs Digital Signal Processing Devices
  • PLDs Programmable Logic Devices
  • FPGAs Field Programmable Gate Arrays
  • general purpose It may be implemented by a processor (general processor), a controller, a microcontroller, a microprocessor, or the like.
  • the scope of the present disclosure is software or machine-executable instructions (e.g., operating systems, applications, firmware, programs, etc.) that cause an operation according to the method of various embodiments to be executed on a device or computer, and such software or It includes a non-transitory computer-readable medium (non-transitory computer-readable medium) which stores instructions and the like and is executable on a device or a computer.
  • a non-transitory computer-readable medium non-transitory computer-readable medium
  • the present invention can be applied to a procedure for configuring a resource pool in a wireless communication system.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention peut fournir un procédé permettant à un terminal de communiquer avec un autre terminal au moyen d'une liaison latérale. Le procédé de réalisation, par un terminal, d'une communication avec un autre terminal peut comprendre les étapes dans lesquelles : un terminal reçoit d'une station de base, par l'intermédiaire d'une signalisation de couche supérieure, au moins une information parmi des informations de période de groupe de ressources, des informations de table de bits de groupe de ressources et des informations d'indication de niveau de symbole ; le terminal vérifie un groupe de ressources sur la base des informations reçues en provenance de la station de base ; le terminal sélectionne une ressource de transmission de données parmi des ressources temporelles comprises dans le groupe de ressources vérifiées ; et le terminal effectue une communication de liaison latérale avec un autre terminal par l'intermédiaire de la ressource de données sélectionnée.
PCT/KR2020/004201 2019-03-29 2020-03-27 Procédé et appareil permettant de configurer un groupe de ressources dans un système de communication sans fil WO2020204485A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2019-0037431 2019-03-29
KR20190037431 2019-03-29
KR1020190100545A KR20200114976A (ko) 2019-03-29 2019-08-16 무선통신 시스템에서 자원 풀 구성 방법 및 장치
KR10-2019-0100545 2019-08-16

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160044619A1 (en) * 2014-08-06 2016-02-11 Samsung Electronics Co., Ltd. Method and apparatus for transmitting/receiving synchronization signal in device-to-device communication system
WO2017176099A1 (fr) * 2016-04-07 2017-10-12 엘지전자 주식회사 Procédé d'attribution d'un groupe de ressources v2x à une sous-trame restante après l'exclusion d'une sous-trame spécifique dans un système de communication sans fil et terminal l'utilisant
US20180098322A1 (en) * 2016-09-30 2018-04-05 Innovative Technology Lab Co., Ltd. Method and apparatus for determining resource pool
US20190090108A1 (en) * 2016-03-17 2019-03-21 Sharp Kabushiki Kaisha User Equipment (UE), evolved NodeB (eNB), method performed by a User Equipment (UE) and method performed by an evolved NodeB (eNB)

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160044619A1 (en) * 2014-08-06 2016-02-11 Samsung Electronics Co., Ltd. Method and apparatus for transmitting/receiving synchronization signal in device-to-device communication system
US20190090108A1 (en) * 2016-03-17 2019-03-21 Sharp Kabushiki Kaisha User Equipment (UE), evolved NodeB (eNB), method performed by a User Equipment (UE) and method performed by an evolved NodeB (eNB)
WO2017176099A1 (fr) * 2016-04-07 2017-10-12 엘지전자 주식회사 Procédé d'attribution d'un groupe de ressources v2x à une sous-trame restante après l'exclusion d'une sous-trame spécifique dans un système de communication sans fil et terminal l'utilisant
US20180098322A1 (en) * 2016-09-30 2018-04-05 Innovative Technology Lab Co., Ltd. Method and apparatus for determining resource pool

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZTE: "Resource pool allocation enhancement for V2V", RL-160682, 3GPP TSG-RAN WG1 MEETING #84, 6 February 2016 (2016-02-06), St Julian' s , Malta, XP051064310 *

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