WO2018084575A1 - Procédé et dispositif pour déterminer un groupe de ressources dans un système de communication sans fil - Google Patents

Procédé et dispositif pour déterminer un groupe de ressources dans un système de communication sans fil Download PDF

Info

Publication number
WO2018084575A1
WO2018084575A1 PCT/KR2017/012269 KR2017012269W WO2018084575A1 WO 2018084575 A1 WO2018084575 A1 WO 2018084575A1 KR 2017012269 W KR2017012269 W KR 2017012269W WO 2018084575 A1 WO2018084575 A1 WO 2018084575A1
Authority
WO
WIPO (PCT)
Prior art keywords
subframe
pool
sub
resource
subframes
Prior art date
Application number
PCT/KR2017/012269
Other languages
English (en)
Korean (ko)
Inventor
윤성준
Original Assignee
주식회사 아이티엘
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 아이티엘 filed Critical 주식회사 아이티엘
Publication of WO2018084575A1 publication Critical patent/WO2018084575A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • 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
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/25—Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the present invention relates to a wireless communication system, and more particularly, to a method and apparatus for resource pool determination based on a terminal type in V2X.
  • V2X communication refers to a communication method of exchanging or sharing information such as traffic conditions while communicating with road infrastructure and other vehicles while driving.
  • V2X is a vehicle-to-vehicle (V2V) for communication between vehicles, a vehicle-to-pedestrian (V2P) for communication between terminals carried by vehicles and individuals, and a vehicle and roadside unit (RSU).
  • Vh vehicle-to-infrastructure / network
  • V2I / N which means communication between networks.
  • the roadside unit (RSU) may be a transport infrastructure entity implemented by a base station or a fixed terminal. For example, it may be an entity that transmits a speed notification to the vehicle.
  • V2X communication it is necessary to transmit control information such as scheduling assignment (SA) from the transmitting terminal to the receiving terminal, and data may be transmitted and received based on the control information.
  • SA scheduling assignment
  • a set of candidates of resources used for transmission of control information and data for V2X may be defined, which is called a resource pool.
  • resource pools for V2X communication may be defined in the time domain and the frequency domain. Among them, the time domain resource pool for V2X communication may be defined in units of subframes. However, a specific method for determining the resource pool based on the type of the terminal having different characteristics has not been determined yet.
  • An object of the present invention is to provide a method and apparatus for determining a resource pool based on a type of a terminal for V2X communication in a wireless communication system.
  • An object of the present invention is to provide a method and apparatus for determining a subframe pool based on a type of a terminal for V2X communication.
  • An object of the present invention is to provide a method and apparatus for determining a resource pool for vehicle-user equipment (V-UE) and / or pedestrian user equipment (P-UE) for V2X communication.
  • V-UE vehicle-user equipment
  • P-UE pedestrian user equipment
  • the present invention provides a method and apparatus for determining a resource pool supporting terminal types such as full sensing, partial sensing, and random resource selection for V2X communication. Shall be.
  • a method of determining a resource pool of a terminal for V2X includes: determining a type of the terminal; Determining subframe sub-pool candidates based on the terminal type; And determining a subframe sub-pool based on a bitmap among the subframe sub-pool candidates.
  • a method and apparatus for determining a resource pool based on a type of a terminal for V2X communication may be provided.
  • a method and apparatus for determining a subframe pool based on a type of a terminal for V2X communication may be provided.
  • V-UE vehicle-user equipment
  • P-UE pedestrian user equipment
  • a method and apparatus for determining a resource pool supporting terminal types such as full sensing, partial sensing, and random resource selection may be provided for V2X communication. .
  • a method and apparatus for reducing collisions and increasing efficiency of resource utilization may be provided.
  • 1, 2 and 3 are diagrams for explaining a V2X scenario related to the present invention.
  • 4 and 5 show examples of resource pools in terms of time axis in accordance with the present invention.
  • FIG. 6 is a diagram illustrating an example of a resource pool in terms of frequency axis in accordance with the present invention.
  • FIG. 7 is a view for explaining the determination of the SA and data transmission subframe in the UE autonomous resource selection mode according to the present invention.
  • FIG. 8 is a diagram for explaining DCI and SCI in a base station resource scheduling mode according to the present invention.
  • FIG 9 is a view for explaining the SCI in the UE autonomous resource selection mode according to the present invention.
  • FIG. 10 is a view for explaining the configuration of a subframe pool within a predetermined period according to the present invention.
  • FIG. 11 is a diagram illustrating an example of resource selection and subframe pool configuration of an entire sensing based terminal.
  • FIG. 12 is a diagram illustrating an example of a resource selection method of a partial sensing based terminal.
  • FIG. 13 is a diagram for explaining an example of a resource selection method of a random resource selection based terminal.
  • FIG. 14 is a diagram illustrating an example of a subframe pool configuration method according to the present invention.
  • 15 is a diagram illustrating another example of a subframe pool configuration method according to the present invention.
  • 16 is a flowchart illustrating a resource selection and resource pool determination method based on a terminal type according to the present invention.
  • 17 is a view for explaining the configuration of a wireless device according to the present invention.
  • first and second are used only for the purpose of distinguishing one component from other components, and do not limit the order or importance between the components unless specifically mentioned. 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 likewise, a second component in one embodiment may be referred to as a first component in another embodiment. It may also be called.
  • the present specification describes a wireless communication network
  • the operation performed in the wireless communication network is performed in the process of controlling the network and transmitting data in the system (for example, the base station) that is in charge of the wireless communication network, or the corresponding wireless Work may be done at the terminal coupled to the network.
  • a 'base station (BS)' may be replaced by terms such as a fixed station, a Node B, an eNodeB (eNB), an access point (AP), and the like.
  • eNB eNodeB
  • AP access point
  • the term 'terminal' may be replaced with terms such as user equipment (UE), mobile station (MS), mobile subscriber station (MSS), subscriber station (SS), and non-AP STA. Can be.
  • D2D Device to Device (communication)
  • PSSCH Physical Sidelink Shared Channel
  • PSBCH Physical Sidelink Broadcast Channel
  • PSCCH Physical Sidelink Control Channel
  • PSDCH Physical Sidelink Discovery Channel
  • V2V Vehicle to Vehicle
  • V2P Vehicle to Pedestrian
  • V2I / N Vehicle to Infrastructure / Network
  • P-UE Pedestrian-User Equipment
  • V-UE Vehicle-User Equipment
  • control information transmitted from a terminal to another terminal may be referred to as SA.
  • SA control information transmitted from a terminal to another terminal
  • SCI sidelink
  • the control information may be referred to as SCI.
  • the control information may be transmitted through the PSCCH.
  • data transmitted from a terminal to another terminal may be configured in TB units. At this time, the data may be transmitted through the PSSCH.
  • an operation mode is 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.
  • an eNodeB or a relay node schedules resources used by a terminal to transmit V2X (or direct link) control information and / or data.
  • a terminal transmits the V2X (or direct link) control information and / or data.
  • the base station or relay node V2X (or direct link) to the scheduling information for the V2X (or direct link) control information and / or resources to be used for data transmission through downlink control information (DCI). It can be provided to the transmitting terminal.
  • DCI downlink control information
  • the V2X (or direct link) transmitting terminal transmits V2X (or direct link) control information and data to the V2X (or direct link) receiving terminal, and the V2X (or direct link) receiving terminal is V2X (or direct link).
  • V2X (or direct link) data may be received based on the control information.
  • the UE selects resources used by the UE to transmit the control information and data, and such resource selection is performed by a resource pool (ie, a resource).
  • a resource pool ie, a resource.
  • Set of candidates means that the terminal is determined by sensing or the like, and thus the terminal transmits the control information and data.
  • a V2X (or direct link) transmitting terminal transmits V2X (or direct link) control information and data to a V2X (or direct link) receiving terminal on a resource selected by the V2X (or direct link) receiving terminal.
  • V2X (or direct link) data may be received based on the V2X (or direct link) control information.
  • the base station resource scheduling mode may be referred to as Mode 1 in direct link communication and Mode 3 in V2X communication.
  • the UE autonomous resource selection mode may be referred to as mode 2 in direct link communication and mode 4 in V2X communication.
  • V2X communication As an example, but the scope of the present invention is not limited to V2X communication, and embodiments of the present invention are applicable to direct link based communication such as D2D, ProSe, and SL communication. Can be.
  • V2X is a generic term for V2V, V2P, and V2I / N, and each of V2V, V2P, and V2I / N may be defined as shown in Table 1 below in connection with LTE communication.
  • V2V -covering LTE-based communication between vehicles V2P -covering LTE-based communication between a vehicle and a device carried by an individual (e.g. handheld terminal carried by a pedestrian, cyclist, driver or passenger)
  • a roadside unit is a stationary infrastructure entity supporting V2X applications that can exchange messages with other entities supporting V2X applications.
  • RSU is a term frequently used in existing ITS specifications, and the reason for introducing the term in the 3GPP specifications is to make the documents easier to read for the ITS industry.
  • RSU is a logical entity that combines V2X application logic with the functionality of an eNB (referred to as eNB-type RSU) or UE (referred to as UE-type RSU).
  • V2X communication may include PC5-based communication, a D2D communication link (ie, a direct interface between two devices supporting ProSe).
  • a D2D communication link ie, a direct interface between two devices supporting ProSe.
  • 1, 2 and 3 are diagrams for explaining a V2X scenario related to the present invention.
  • Table 2 and FIG. 1 show scenarios supporting V2X operation based only on the PC5 interface (or SL).
  • A) of FIG. 1 shows a V2V operation
  • (b) shows a V2I operation
  • (c) shows a V2P operation.
  • a UE transmits a V2X message to multiple UEs at a local area in sidelink.
  • transmitter UE or receiver UE (s) are UE-type RSU -For V2P
  • transmitter UE or receiver UE (s) are pedestrian UE.
  • Table 3 and FIG. 2 show scenarios supporting V2X operation based only on the Uu interface (ie, the interface between the UE and the eNodeB).
  • A) of FIG. 2 shows a V2V operation
  • (b) shows a V2I operation
  • (c) shows a V2P operation.
  • a UE transmits a V2X message to E-UTRAN in uplink and E-UTRAN transmits it to multiple UEs at a local area in downlink.
  • a UE when receiver is eNB type RSU, a UE transmits a V2I message to E-UTRAN (eNB type RSU) in uplink; when transmitter is eNB type RSU, E-UTRAN (eNB type RSU) transmits a I2V message to multiple UEs at a local area in downlink.
  • E-UTRAN For V2P, either transmitter UE or receiver UE (s) are pedestrian UE.
  • E-UTRAN performs uplink reception and downlink transmission of V2X messages.
  • E-UTRAN may use a broadcast mechanism.
  • Tables 4 and 3 show scenarios that support V2X operation using both the Uu interface and the PC5 interface (or SL).
  • (A) of FIG. 3 shows scenario 3A of Table 4
  • (b) shows scenario 3B of Table 4.
  • FIG. 4
  • Scenario3A In this scenario, a UE transmits a V2X message to other UEs in sidelink.
  • One of the receiving UEs is a UE type RSU which receives the V2X message in sidelink and transmits it to E-UTRAN in uplink.
  • E-UTRAN receives the V2X message from the UE type RSU and then transmits it to multiple UEs at a local area in downlink.
  • E-UTRAN performs uplink reception and downlink transmission of V2X messages.
  • E-UTRAN may use a broadcast mechanism.
  • a UE transmits a V2X message to E-UTRAN in uplink and E-UTRAN transmits it to one or more UE type RSUs. Then, the UE type RSU transmits the V2X message to other UEs in sidelink.
  • E-UTRAN performs uplink reception and downlink transmission of V2X messages. For downlink, E-UTRAN may use a broadcast mechanism.
  • an SA pool for a control channel (PSCCH) in which a scheduling assignment (SA) is transmitted in a V2X according to the present invention, and a data channel (PSSCH) in which data associated with an SA are transmitted The configuration of a data pool for data will be described.
  • an SA pool for a control channel (PSCCH) in which a scheduling assignment (SA) is transmitted in a V2X according to the present invention, and a data channel (PSSCH) in which data associated with an SA are transmitted The configuration of a data pool for data will be described.
  • the SA pool may be a set of resource candidates available for SA transmission
  • the data pool may be a set of resource candidates available for data transmission. That is, the SA pool is a resource pool for SA, and the data pool is a resource pool for data.
  • Each resource pool may be specifically called a subframe pool in terms of a time-domain, and a resource block resource in terms of a frequency-domain. block pool).
  • the resource pool may be determined differently (or independently) according to the type of UE in V2X. For example, in V2X, a resource pool for a V-UE and a resource pool for a P-UE may be distinguished.
  • the terminal type may be determined according to whether the terminal supports full sensing, partial sensing, or random resource selection in V2X, and the resource pool for the first type of terminal may be determined. It may be distinguished from a resource pool for two types of terminals.
  • the resource pool described below with reference to FIGS. 4 to 6 is a resource pool for V-UE in V2X.
  • the scope of the present invention is not limited thereto, and a resource pool described with reference to FIGS. 4 to 6 may be applied to any type of terminal.
  • the SA pool and the data pool to be described with reference to FIGS. 4 to 6 may be defined in a UE autonomous resource selection mode (or mode 4).
  • the base station resource scheduling mode (eNodeB resource scheduling mode, or mode 3)
  • all sidelink subframes ie, corresponding to all uplink subframes in LTE
  • V2X carriers on the frequency axis
  • SA and / or data In the case of carrier, or band, or carrier aggregation, resources corresponding to all resource blocks in a component carrier or cell are transmitted in SA and / or data. It may be a set of available resource candidates for.
  • the SA pool and the data pool are separately defined in the same manner as the UE autonomous resource selection mode (UE 4).
  • UE 4 UE autonomous resource selection mode
  • a set of resource candidates available for data transmission may be configured.
  • the SA pool and the data pool described below with reference to FIGS. 4 to 6 may include a UE autonomous resource selection mode (UE autonomous resource selection mode, or mode 4) and / or a base station resource scheduling mode (eNodeB resource scheduling mode, Or in mode 3).
  • UE autonomous resource selection mode UE autonomous resource selection mode, or mode 4
  • eNodeB resource scheduling mode eNodeB resource scheduling mode, Or in mode 3
  • the D2D Frame Number (DFN) period is exemplary and the same number of subframe sets having the same or different starting point as the System Frame Number (SFN) period. It may correspond to.
  • one SFN period or DFN period may correspond to 10240 subframes corresponding to 10240 ms.
  • 4 and 5 show examples of resource pools in terms of time axis in accordance with the present invention.
  • the subframes for the SA pool and the data pool for V2X may be defined as indicated by a bitmap (for example, 1100111011 in FIG. 4) repeated for all subframes except for specific subframes. There is a number. For example, a value of 1 in the bitmap may indicate subframes for the SA pool and a data pool, and a value of 0 may indicate a subframe not belonging to the SA pool and the data pool.
  • Subframes for the SA pool and Data pool for V2X may be subframes that allow SA and / or Data transmission and / or reception for the resource pool in V2X.
  • all subframes except specific subframes include specific subframes (eg, V2X or subframes in which direct link transmission is not allowed, or V2X or the like) among all subframes belonging to the SFN or DFN period.
  • the direct link transmission it means a set excluding subframes used for other purposes other than control information and / or data transmission.
  • the specific subframes may be subframes used for transmission of a sidelink synchronization signal (SLSS) and / or downlink (DL) subframes or special subframes in a time division duplex (TDD).
  • SLSS sidelink synchronization signal
  • DL downlink
  • TDD time division duplex
  • the uplink (UL) subframe may be used as a sidelink (SL) subframe in TDD, but is not limited thereto.
  • the repeatedly applied bitmap may be indicated by higher layer signaling such as RRC (Radio Resource Control), and the length may be 16, 20, or 100, but is not limited thereto.
  • RRC Radio Resource Control
  • subframe indication of resource pool information indicating a subframe indication of the resource pool shown in FIG. 4 may correspond to an example of a field included in the higher level signaling.
  • the subframes for the SA pool and the data pool for V2X share the same subframes, and the "subframe indication of resource pool shown in FIG. 4. Shows an example assuming that a signaling field is commonly set for an SA pool and a data pool.
  • V2X allows SA and Data to be transmitted in different subframes (that is, SA and Data are not necessarily transmitted in different subframes, SA and Data may be transmitted in the same subframe or may be different from each other). May be transmitted in different subframes), the subframes for the SA pool and the data pool for V2X may be different subframes, and for this purpose, the "subframe indication of resource pool" signaling field shown in FIG. As shown in FIG. 5, the SA pool and the data pool may be separately set.
  • FIG. 6 is a diagram illustrating an example of a resource pool in terms of frequency axis in accordance with the present invention.
  • FIG. 6 illustrates a subframe in which a resource pool is configured on a frequency axis of the SA pool and the data pool.
  • the PSCCH transmitted in the SA pool and the PSSCH transmitted in the data pool are adjacent to each other on the frequency axis (Adjacent between PSCCH / PSSCH) or not adjacent to each other (Non-adjacent between PSCCH / PSSCH).
  • the configuration may vary depending on the state. In this case, whether the PSCCH and the PSSCH are adjacent to each other may be indicated by, for example, a higher level signaling such as an RRC in the "Adjacency of PSCCH and PSSCH RBs" signaling field.
  • a resource pool In a subframe in which a resource pool is configured on the time-domain for V2X as shown in FIG. 4, one for every RBs (RB # 0 to RB # (N UL RB- 1)) on the frequency axis.
  • RB units or granularity
  • “Starting RB of sub-channels” corresponding to starting RBs of sub-channels may be defined, where N UL RBs is the total number of RBs corresponding to a system bandwidth for the UL band. Since V2X for the sidelink is defined, the UL may be replaced by the SL
  • the "Starting RB of sub-channels" signaling field may be indicated by higher-end signaling such as RRC.
  • the number of RBs forming one sub-channel is the sub-channel size.
  • the "Sub-channel size" signaling field indicating The number of K sub-channels may be indicated by a "Number of sub-channels” signaling field, and may be included in higher-level signaling such as RRC.
  • RBs having the lowest RB index in each sub-channel belong to SA pool as well as the data pool, and one or more of them may be used for PSCCH transmission.
  • the SA may be transmitted in the RB having the lowest index among the RBs belonging to the entire data pool.
  • a resource pool In a subframe in which a resource pool is configured on the time-domain for V2X as shown in FIG. 4, one for every RBs (RB # 0 to RB # (N UL RB- 1)) on the frequency axis.
  • RB units or granularity
  • “Starting RB of sub-channels” corresponding to starting RBs of sub-channels may be defined, where N UL RBs is the total number of RBs corresponding to a system bandwidth for the UL band. Since V2X for the sidelink is defined, the UL may be replaced by the SL
  • the "Starting RB of sub-channels" signaling field may be indicated by higher-end signaling such as RRC.
  • the number of RBs forming one sub-channel is the sub-channel size.
  • the "Sub-channel size" signaling field indicating The number of K sub-channels may be indicated by a "Number of sub-channels” signaling field, and may be included in higher-level signaling such as RRC.
  • a "Starting RB of PSCCH pool" corresponding to the starting RB of the SA pool may be defined, where N UL RBs are the total number of RBs corresponding to the system bandwidth for the UL band. Since V2X for the sidelink is defined, the UL may be replaced by the SL The "Starting RB of PSCCH pool" signaling field may be indicated by higher-level signaling such as RRC. A total of K consecutive RBs belonging to the SA pool from the RB denoted by K are equal to the number K of sub-channels in the data pool.
  • the subframe in which the SA is transmitted may be determined as follows.
  • a subframe in which an SA is transmitted in an eNodeB resource scheduling mode (or mode 3) is 4ms after (or after 4 subframes) from a subframe in which the eNodeB transmits downlink control information (DCI).
  • DCI downlink control information
  • this is the first subframe included in the set of resource candidates that can be used for V2X on a V2X carrier or band.
  • the subframe in which the SA is transmitted may be a subframe in which Data is transmitted.
  • the UE may determine a subframe in which the SA transmits itself in the SA pool by sensing.
  • the subframe in which the SA is transmitted may be a subframe in which Data is transmitted.
  • FIG. 7 is a view for explaining the determination of the SA and data transmission subframe in the UE autonomous resource selection mode (or mode 4) according to the present invention.
  • FIG. 7 illustrates an example of selecting a subframe for transmitting the control channel and the data channel by sensing in the SA pool for the control channel (PSCCH) and the data pool for the data channel (PSSCH) associated with it. .
  • the number of subframes corresponding to the size of the sensing window is a subframe in which specific subframes (eg, SLSS resources are set) among all subframes belonging to a predetermined period (eg, SFN or DFN period). It may be defined based on a set except for a frame, a TDD DL subframe or a special subframe, and / or a non-map subframe (a specific example will be described later).
  • TTI m point in time for resource selection / reselection of the terminal.
  • the terminal may identify a resource occupied and used by another terminal through sensing on a sensing window corresponding to a section from "TTI m-a" to "TTI m-b".
  • the terminal may transmit a control channel and a data channel on a resource selected from the remaining resources except for resources occupied and used by the other terminal among resources belonging to the resource pool.
  • TTI m + c corresponds to a TTI transmitting SA # 1 (first SA) (or a subframe transmitting SA # 1 (first SA) when one TTI corresponds to one subframe).
  • TTI m + d is a TTI (or one TTI corresponding to one subframe) that initially transmits TB # 1 (first TB) indicated and transmitted by SA # 1 (first SA).
  • TB # 1 (the subframe in which the first TB) is first transmitted).
  • TTI m + e is a TTI (or TB # when one TTI corresponds to one subframe) for retransmission of TB # 1 (first TB) indicated and transmitted by SA # 1 (first SA). 1 may correspond to a subframe for retransmitting first TB).
  • TTI m + c ' may correspond to a TTI transmitting SA # 2 (second SA) (or a subframe transmitting SA # 2 (second SA) when one TTI corresponds to one subframe).
  • TTI m + d ' denotes a TTI (or one TTI corresponding to one subframe) that initially transmits TB # 2 (second TB) indicated and transmitted by SA # 2 (second SA). May correspond to TB # 2 (the subframe in which the second TB is first transmitted).
  • TTI m + e '" is a TTI for retransmission of TB # 2 (second TB) indicated by SA # 2 (second SA) (or TB when one TTI corresponds to one subframe); Subframe retransmitting # 2 (second TB).
  • the first transmission time point of TB # 2 may be reserved from a first transmission time point of TB # 1 to a time point after P rsvp * j in time.
  • P rsvp 100 and j is the network configuration or pre-configuration for each carrier (or band) used for V2X within the range ⁇ 0, 1, ..., 10 ⁇ . specific network configuration or pre-configuration) to be signaled as one of the selected values.
  • the value of j may be selected and indicated through a "Resource reservation" signaling field (filed) of the SCI included in the SA.
  • j 0 means that there is no d 'value, that is, resources are reserved after TTI corresponding to "P rsvp * j" from "TTI m + d" for transmission of TB # 2 (second TB). It can mean not to do it.
  • TTI m + c is a subframe 4ms after (or after 4 subframes) from a subframe in which the eNodeB transmits downlink control information (DCI). It may correspond to the first subframe included in the set of resource candidates that may be used for V2X on a V2X carrier or band among frames.
  • FIG. 8 is a diagram for explaining DCI and SCI in a base station resource scheduling mode according to the present invention.
  • the subframe in which the SA is transmitted is 4ms after the subframe in which the base station (eNodeB) transmits downlink control information (DCI) (four subs). It is the first subframe included in the set of resource candidates that can be used for V2X on a V2X carrier (or band) among subframes of frame after).
  • DCI downlink control information
  • the information required for the V2X (or direct link) transmitting terminal (UE A in FIG. 8) to transmit SA and Data to the V2X (or direct link) receiving terminal (UE B in FIG. 8) is provided by the base station in UE A. Can be instructed via DCI.
  • the DCI may include information as shown in Table 5.
  • Information on a resource block which is a frequency axis resource used by UE A in transmitting a SA to UE B in a subframe in which the SA is transmitted, is “CIF” corresponding to a carrier indicator field in Table 5 above.
  • a "Lowest index of sub-channel allocation" signaling field corresponding to the lowest index of the sub-channel allocation.
  • the DCI is content related to Sidelink Control Information (SCI) as control information (SA) for data transmission from UE A to UE B. (content) may also be included.
  • SA control information
  • the content related to the SCI indicated and included in the DCI is "Time gap between transmission and retransmission" corresponding to the time gap between transmission and retransmission, as shown in Table 5, and the initial transmission and the last. It may include a "Frequency resource of initial and last transmission” signaling field indicating a frequency resource of the transmission.
  • Time gap between transmission and retransmission and / or “Frequency resource of initial and last transmission” are merely examples, and the scope of the present invention is not limited by the names.
  • the information indicated by "Time gap between transmission and retransmission” and / or “Frequency resource of initial and last transmission” may vary depending on a specific condition.
  • the "Time gap between transmission and retransmission” field may be referred to as a first field
  • the "Frequency resource of initial and last transmission” field may be referred to as a second field.
  • FIG 9 is a view for explaining the SCI in the UE autonomous resource selection mode according to the present invention.
  • a UE can determine a subframe in which an SA is transmitted by itself within a SA pool (specifically, a subframe pool for an SA) by sensing.
  • a resource block which is a frequency axis resource used for transmitting SA in a subframe in which the SA is transmitted, may also be determined by the UE itself in an SA pool (specifically, a resource block pool for SA). Therefore, unlike the base station resource scheduling mode (eNodeB resource scheduling mode, or mode 3), the "CIF" and "Lowest index of sub-channel allocation" signaling fields are not provided from the base station through the DCI, the terminal itself You can decide.
  • a UE autonomous resource selection mode (or mode 4) information related to Sidelink Control Information (SCI) as information required for the UE to transmit data in V2X communication (SA).
  • SA V2X communication
  • the terminal itself is also determined.
  • the first field eg, "Time gap between transmission and retransmission”
  • the second field eg, "Frequency resource of initial” and last transmission ” is not provided by the base station through the DCI, but may be determined by the terminal itself.
  • SCI Servicelink Control Information
  • SA Service Assignment
  • the terminal receiving the data (UE B) is a terminal for transmitting data
  • SA Service Assignment
  • the SCI corresponding to the control information SA (Scheduling Assignment)
  • SA Scheduling Assignment
  • SCI SCI corresponding to must be transmitted to the UE (UE B) receiving the data.
  • the SCI may include information as shown in Table 6 below.
  • information about a resource block which is a frequency axis resource used for SA transmission in an eNodeB resource scheduling mode (or mode 3), may be indicated by being included in the DCI. It may be the "CIF” and "Lowest index of sub-channel allocation” signaling fields of Table 5.
  • the "Lowest index of sub-channel allocation" signaling field transmits an SA to any resource block on a carrier or band used for the V2X in a subframe transmitting the SA. Can be used to indicate
  • the "Lowest index of sub-channel allocation" signaling field is used for transmission of data associated with the SA, among a total of K sub-channels having indices from 0 to K-1.
  • the sub-channel having the lowest index among the sub-channels may be indicated. This requires a bit of ceil (log2 (K)).
  • K is variable depending on the size of the system bandwidth and may have a value of up to 20, for example. This requires a minimum of 0 bits and a maximum of 5 bits for the "Lowest index of sub-channel allocation" field.
  • the PSCCH for transmitting SA is a sub-channel indicated by "Lowest index of sub-channel allocation" when the PSCCH for transmitting SA and the PSSCH for transmitting data are adjacent to each other on the frequency axis. channel) may be allocated in the RB having the lowest RB index (see the left figure of FIG. 6). Or, if the PSCCH for transmitting the SA and the PSSCH for transmitting the data are not adjacent to each other on the frequency axis, one-to-one to the sub-channel indicated by the "Lowest index of sub-channel allocation". It is allocated in the RB corresponding to one day (see the right figure of FIG. 6).
  • the value indicated by "Lowest index of sub-channel allocation" is an index value of 2.
  • the RB having the lowest RB index in the sub-channel corresponding to the index value 2 (for example, if the RB index corresponding to "Starting RB of sub-channels" is r in the left figure of FIG. 6, a PSCCH for transmitting SA is allocated to RB corresponding to r + 2 * "sub-channel size". Can be.
  • the RB corresponding to the sub-channel corresponding to the index value 2 on a one-to-one basis eg, For example, if the RB index corresponding to "Starting RB of PSCCH pool" is s in FIG. 6, PSCCH for transmitting SA may be allocated to RB corresponding to s + 2.
  • a first field (eg, "Time gap between transmission and retransmission") for indicating a resource used for PSSCH for transmitting data among SA contents of Table 5, and a second field ( For example, "Frequency resource of initial and last transmission” may be included in DCI in a base station resource scheduling mode (eNodeB resource scheduling mode, or mode 3).
  • the first field eg, "Time gap between transmission and retransmission” in Table 6, and the second field (eg, "Frequency resource of initial and last transmission" are the base station resource scheduling mode (eNodeB).
  • resource scheduling mode, or mode 3 the value indicated through DCI is included in the SCI as it is, but in the UE autonomous resource selection mode (UE 4, mode 4), the resource selected by the terminal itself based on sensing It can be determined according to.
  • the first field is a gap between a subframe in which TB-based data associated with an SA is initially transmitted and a subframe in which TB-based data associated with the SA is retransmitted.
  • Or may indicate a gap between a subframe in which data of a TB unit associated with the SA is initially transmitted and a subframe in which the SA is retransmitted.
  • This value may be a value from 0 to 15. If 0, it indicates that there is no retransmission of TB transmitted by indicating through the SA including the SCI, and when 1 to 15, indicating through the SA including the SCI, respectively. This means that the TB initially transmitted is retransmitted after 1 to 15 subframes, respectively.
  • the first field (eg, “Time gap between transmission and retransmission”) may be “TTI m” as shown in FIG. 7.
  • a second field indicates which RBs are used on the frequency axis in the subframe in which the TB data is initially transmitted and in the reframe.
  • the second field (eg, "Frequency resource of initial and last transmission”) may indicate the number of sub-channels used for initial transmission of data (the number of sub-channels used for retransmission of data
  • information about the lowest index among the sub-channels used in the retransmission of data may be indicated.
  • the lowest index among the sub-channels used for this is the eNodeB resource scheduling mode. , Or mode 3) is indicated by the "Lowest index of sub-channel allocation" signaling field included in the DCI, and in the UE autonomous resource selection mode (UE 4, mode 4). It is determined by itself. In this case, information indicating how many sub-channels are transmitted may be included in the second field (eg, "Frequency resource of initial and last transmission").
  • the lowest index among the sub-channels used for this purpose is the second field (eg, "Frequency resource”). of initial and last transmission "). How many sub-channels to use for TB retransmission is indicated by the second field (e.g., "Frequency resource of initial and last transmission”). As many sub-channels are used as the number of sub-channels that were used.
  • a subframe corresponding to "TTI m + d ( TTI m + c)" and a "TTI” as shown in FIG. 7.
  • RBs for transmitting a PSSCH in a subframe corresponding to “m + e” are indicated by a second field (eg, “Frequency resource of initial and last transmission”).
  • K sub-channels are assumed for the second field (eg, "Frequency resource of initial and last transmission")
  • total ceil log2 (K * (K + 1) / 2)
  • K is at most 20, this requires a minimum of 0 bits and a maximum of 8 bits.
  • Priority may indicate the priority of Data in TB units to be transmitted.
  • Resource reservation is a parameter used to indicate a reserved resource in the UE autonomous resource selection mode (UE 4, mode 4) as described above, j ⁇ ⁇ 0, 1, 2, .. ., 10 ⁇ value.
  • the “Modulation and Coding Schme (MCS)" may indicate a modulation scheme and a coding scheme of data in units of TB to be transmitted.
  • Retransmission index indicates whether or not retransmission of data in TB units.
  • CRC Cyclical Redundancy Check
  • the terminal determines the subframe pool for the base station resource scheduling mode (or mode 3) or the terminal autonomous resource selection mode (or mode 4) for V2X communication
  • the base station is the terminal for the subframe pool determination Information (or settings) provided to the user
  • FIG. 10 is a view for explaining the configuration of a subframe pool within a predetermined period according to the present invention.
  • the predetermined period may be an SFN period or a DFN period (10240 ms). Since a time length of one subframe is 1 ms, a total of 10240 subframes (that is, subframe indexes # 0 to # 10239) may be included within a predetermined period.
  • the radio corresponding to SFN 0 (for mode 3) or DFN 0 (for mode 4) of the serving cell may be arranged in increasing order based on subframe # 0 of the frame.
  • subframes corresponding to ⁇ t SL 0 , t SL 1 , ..., t SL Tmax -1 ⁇ are a set of subframes that may belong to a resource pool for V2X communication.
  • subframes corresponding to ⁇ t SL 0 , t SL 1 ,..., T SL Tmax -1 ⁇ do not mean a resource pool, but some or all of them may be set as resource pools.
  • Subframes excluding specific subframe (s) in the entire set of subframes of the predetermined period, More specifically, it may also be referred to as a target subframe set to which a bitmap indicating a subframe pool corresponding to a time axis among resource pools is applied.
  • the specific subframe (s) corresponds to, for example, a subframe in which an SLSS resource is set, a TDD DL subframe or a special subframe, and / or a bitmap unapplied subframe (a detailed example will be described later). can do.
  • the bitmap associated with the resource pool may be represented by ⁇ b 0 , b 1 , ..., b Lbitmap - 1 ⁇ .
  • L bitmap is the length of the bitmap set by the upper end.
  • the L bitmap may be set to a value smaller than the number of subframes belonging to the predetermined period, and the bitmap may be repeatedly applied within the predetermined period.
  • the value of the L bitmap may be 16, 20, or 100, but is not limited thereto.
  • x may correspond to the number of subframes in which the SLSS is set within the predetermined period.
  • the value of x can be 0 or 64.
  • the x SLSS configuration subframes may be referred to as a first type exclusion subframe.
  • y may correspond to the number of bitmap unapplied subframes within the predetermined period.
  • the value of y can be 0, 16, 40 or 76.
  • the bitmap unapplied subframe may be determined in consideration of the length of the predetermined period, the length of the bitmap, the subframe in which V2X transmission is reserved, and the like. Specific examples thereof will be described later.
  • the y bitmap non-applying subframes may be referred to as a second type exclusion subframe.
  • P rsvp is a resource reservation interval set by a higher level.
  • P rsvp may be a fixed value of 100, or one of 100 and one or more other values may be selected and used. have.
  • P rsvp is briefly referred to as P.
  • a method for determining a resource pool for a P-UE will be described assuming a UE autonomous resource selection mode (or mode 4).
  • the resource pool determination method as described above with reference to FIGS. 4 through 6 and 10 may be basically applied to the V-UE.
  • the resource selection method as shown in FIG. 7 may be applied to a UE (eg, V-UE) that supports full sensing.
  • the resource pool determination method as described below may be applied to the P-UE.
  • different resource pool determination methods may be applied according to the detailed type of the P-UE. For example, different resource pool determination methods for a P-UE that selects resources based on partial sensing and a P-UE that selects resources randomly based on sensing and randomly select resources. This can be applied.
  • V-UE is a terminal included in or inside the vehicle
  • the limitation of the battery is not large.
  • P2V pedestrian to Vehicle
  • battery power consumption is limited. For example, it is required to reduce energy consumption in the case of transmission from a P-UE to another entity (ie, P2V (Pedestrian to Vehicle)).
  • a sensing-based resource selection method targeting some resources within a specific interval for example, 1000 subframes based on a set of subframes to be applied for bitmap
  • a sensing-based resource selection method targeting some resources within a specific interval for example, 1000 subframes based on a set of subframes to be applied for bitmap
  • Partial sensing method can be applied.
  • the P-UE may transmit sidelink control information and data to the V-UE, but the P-UE does not receive sidelink control information and data from the V-UE.
  • a general P-UE may have a P2V communication capability (eg, sidelink transmission (Tx) capability), so that a V-UE such as a vehicle may have information about a P-UE such as a pedestrian. You can learn to support the operation to prepare for safety.
  • the P-UE may not have a V2P communication capability (for example, side link reception (Rx) capability), which means that the P-UE such as a pedestrian may secure information about the V-UE such as a vehicle. This is a case where there is no need to learn to prepare for.
  • a random resource selection scheme may be applied for the P-UE.
  • the resource selection scheme for the V-UE may be applied to the entire sensing scheme as described in FIG. 7, and the resource pool configuration scheme may be applied to the schemes described with reference to FIGS. 4 to 6 and 10.
  • the resource pool may be configured in the same manner as the example of FIGS. 4 to 6 and 10 for the V-UE.
  • the bitmap of length L bitmap is repeatedly applied to subframes other than some subframes within one SFN (or DFN) period in the SFN (or DFN) period of the subframe pool among the resource pools.
  • the sensing may be performed in subframes (ie, subframes except some subframes within one SFN (or DFN) period) that are applied to a total of 1000 bitmaps.
  • a resource is occupied and used by another terminal through a sensing window on a sensing window corresponding to 1000 subframes, and is occupied by the other terminal among resources belonging to a resource pool.
  • the control channel and the data channel may be transmitted on the selected resource among the remaining resources except the used resource.
  • the subframe pool for the partial sensing based P-UE may also be based on the subframe pool for the full sensing based V-UE. This is to simplify the complexity by performing the same sensing-based operation, but only the size of the sensing window.
  • the subframe pool for random resource selection based P-UE is independent of the subframe pool for full sensing based V-UE (in this case, partial sensing based P).
  • the subframe pool for the UE may be defined as shared with the subframe pool for the full sensing based V-UE.
  • the performance of the P-UE may be increased as compared to sharing the subframe pool to be described below. That is, a resource for a P-UE based on random resource selection may be replaced with other resources (that is, a resource for a P-UE based on partial sensing and / or a V-UE based on full sensing). It is possible to increase performance because it is configured independently without being affected.
  • the subframe pool for random resource selection based P-UE shares the subframe pool for the full sensing based V-UE (in this case, partial sensing).
  • the subframe pool for the base P-UE may also be defined as shared with the subframe pool for the full sensing based V-UE. This is to prevent affecting the performance of the V2V by reducing the available resources.
  • one pool can be shared and used, there is an advantage that more efficient use of resources can be made without wasting resources.
  • the subframe pool for random resource selection based P-UE and the subframe pool for partial sensing based P-UE need to be distinguished from each other with orthogonality. This is because partial sensing based P-UEs cannot be guaranteed that the resources they use are not interfered by random resource selection based P-UEs.
  • FIG. 11 is a diagram illustrating an example of resource selection and subframe pool configuration of an entire sensing based terminal.
  • the entire sensing based terminal may be, for example, a V-UE, but is not limited thereto, and may perform the entire sensing based operation even in any terminal having no power constraint.
  • sensing may be performed on, for example, 1000 subframes from among a set of submap target subframes.
  • the mobile station grasps a resource occupied and used by another terminal through a sensing window on a sensing window corresponding to 1000 subframes, and is occupied by the other terminal among resources belonging to a resource pool.
  • Transfer control channel and data channel on selected resources for example, TTI m + c, TTI m + e, TTI m + c ', and TTI m + e' are selected). Can be done.
  • j may have a value of ⁇ 0, 1, ..., 10 ⁇ .
  • the value of j may be indicated through the SCI included in the SA.
  • the value of j is one of the values selected by a carrier or band-specific network configuration or a pre-configuration used for V2X. It may be a value, and the value may be selected and indicated through a "Resource reservation" signaling field of the SCI included in the SA.
  • the subframe pool for the terminal supporting the entire sensing may be configured as shown in FIG. 10 described above.
  • FIG. 12 is a diagram illustrating an example of a resource selection method of a partial sensing based terminal.
  • the partial sensing based terminal may be a P-UE, but is not limited thereto.
  • the partial sensing based operation may be performed by any terminal having a power constraint.
  • sensing may be performed on a total of (1000 / P) * X subframes among a set of bitmap target subframes.
  • a total of 1000 subframes in which sensing is performed may be divided into a duration corresponding to P subframes.
  • P may be 100 but is not limited thereto.
  • sensing may be performed on the X subframes.
  • P may be a value divided by X.
  • X may be 10 but is not limited thereto.
  • a predetermined period corresponding to the P subframes is repeated a total of (1000 / P) times, and each of the subframes corresponding to the P subframes corresponds to X subframes in a duration corresponding to each of the P subframes.
  • the total P / X sub-durations are divided, and sensing may be performed in one sub-duration.
  • X may use a fixed value (eg, 10), be configured and indicated among a number of values, or may be randomly selected.
  • the number of sub-durations of the P / X sub-durations may be set in a duration corresponding to the P subframes.
  • the information for setting the sub-section in which sensing is performed may have a fixed value or may be separately indicated.
  • X 10
  • P 100
  • P / X 10
  • one sub-duration out of a total of 10 sub-durations may be fixedly used.
  • the fifth sub-duration is used as an example.
  • a resource is occupied and used by another terminal through sensing on a sensing window corresponding to a total of (1000 / P) * X subframes, and among resources belonging to a resource pool
  • the control channel and the data channel may be transmitted on a resource selected from the remaining resources except for the resources occupied and used by the other terminal.
  • TTI m + c may be selected according to the partial sensing scheme, and although not shown in FIG. 12, TTI m + e, TTI m + c ', and TTI m + e' are also shown in FIG. May be additionally selected.
  • resource selection of the terminal supporting partial sensing may be performed as follows.
  • Sensing may be performed in a sub-duration corresponding to X consecutive subframes.
  • 1-b) X may be indicated by higher-level signaling such as RRC in which one value of P / X becomes an integer value.
  • 1-c) X may be randomly selected from one of values where P / X is an integer value.
  • corresponding to the X consecutive sub-frame sub-interval (which is sub-duration) starts the sub-frame can be determined in the sub-frame after the offset (offset corresponding to X i * 1 sub-frame).
  • 2-a) i 1 may be indicated by one of ⁇ 0, 1, ..., P / X-1 ⁇ by higher-level signaling such as RRC.
  • 2-b) i 1 may use a fixed value of one of ⁇ 0, 1, ..., P / X-1 ⁇ .
  • 2-c) i 1 may be randomly selected from one of ⁇ 0, 1, ..., P / X-1 ⁇ .
  • the sub-duration corresponding to X consecutive subframes may be repeated by an integer value of 1000 / P with an interval corresponding to P subframes.
  • 3-b) P may be indicated by one of a plurality of values by higher level signaling such as RRC.
  • 3-c) P may be determined according to a system situation such as a subframe pool configuration method in which one value of the plurality of values is determined.
  • FIG. 13 is a diagram for explaining an example of a resource selection method of a random resource selection based terminal.
  • the random resource selection based terminal may be a P-UE, but is not limited thereto.
  • the random resource selection based terminal may also perform a random resource selection based operation in any terminal that does not support sidelink Rx capability.
  • the example of FIG. 13 does not include a sensing window. That is, in the random resource selection based terminal, sensing for resource selection is not required.
  • transmission of a control channel and a data channel is performed on a randomly selected resource in Y subframes within a duration corresponding to P subframes among a set of bitmap target subframes.
  • it may be selected by a TTI m + c random resource selection scheme, and although not shown in FIG. 13, TTI m + e, TTI m + c ', and TTI m + e' are also shown in FIG. 11. May be additionally selected.
  • the duration corresponding to the P subframes may be repeated periodically.
  • P may be 100 but is not limited thereto.
  • Random resource selection may be performed on Y subframes within a predetermined duration corresponding to the P subframes.
  • P may be a value divided by Y.
  • the duration corresponding to each of the P subframes is divided into a total P / Y sub-durations corresponding to the Y subframes, and one sub Random resource selection may be performed in the sub-duration.
  • Y may use a fixed value (eg, 10), be configured and indicated among a number of values, or may be randomly selected.
  • the number of sub-durations of the P / Y sub-durations may be set within a duration corresponding to the P subframes.
  • the information for setting the sub-section to be used may have a fixed value or may be separately indicated.
  • Y 10
  • P 100
  • P / Y 10
  • one sub-duration of the total 10 sub-durations may be fixedly used.
  • the second sub-duration is used as an example.
  • a duration corresponding to each of the P subframes is divided into a total of P / X sub-durations corresponding to the X subframes, each of which is Y.
  • Random resource selection may be performed in one or more sub-durations (where Y is a multiple of X). In this case, it may be set which sub-duration (s) of the P / X sub-durations are to be used within a period corresponding to the P subframes. .
  • resource selection of a terminal supporting random resource selection may be performed as follows.
  • Random resource selection may be performed within sub-duration (s) corresponding to Y consecutive subframes.
  • Y is one of values satisfying k * X (where k ⁇ ⁇ 1, 2, ..., P / X-1 ⁇ ) is indicated by higher-level signaling such as RRC. (Ie, the value signaled may be k).
  • 1-c) Y may be randomly selected from a value satisfying k * X (where k ⁇ ⁇ 1, 2, ..., P / X-1 ⁇ ).
  • Y consecutive sub corresponding to the sub-frame interval (sub-duration) subframe (s) is started may be a sub-frame after the offset of the X * i 2 sub-frames (offset).
  • 2-a) i 2 may be indicated by one of ⁇ 0, 1, ..., P / X-1 ⁇ by higher-level signaling such as RRC.
  • 2-b) i 2 may use a fixed value of one of ⁇ 0, 1, ..., P / X-1 ⁇ .
  • 2-c) i 2 may be randomly selected from one of ⁇ 0, 1, ..., P / X-1 ⁇ .
  • the sub-duration (s) corresponding to Y consecutive subframes may be repeated by an integer value of 1000 / P with an interval corresponding to P subframes.
  • 3-b) P may be indicated by one of a plurality of values by higher level signaling such as RRC.
  • 3-c) P may be determined according to a system situation such as a subframe pool configuration method in which one value of the plurality of values is determined.
  • X subframes selected based on the partial sensing scheme of FIG. 12 and Y subframes selected based on the random resource selection scheme of FIG. 13 may not overlap each other.
  • a value of i 1 which is an element that determines an offset value associated with a start point of the X subframes of FIG. 12, and the Y subframes of FIG. 13 so that the aforementioned X subframes and the Y subframes do not overlap.
  • a value of i 2, which is an element that determines an offset value associated with a start point of a frame, may be determined.
  • FIG. 14 is a diagram illustrating an example of a subframe pool configuration method according to the present invention.
  • a subframe pool for a random resource selection based terminal may be defined as sharing a subframe pool for a full sensing based terminal. Also, the subframe pool for the partial sensing based terminal may be shared with the subframe pool for the full sensing based terminal.
  • the subframe pool for the random resource selection based terminal, the partial sensing based terminal, and the entire sensing based terminal may be defined in one subframe pool as defined in FIGS. 4 and 10.
  • the subframe pools defined in FIGS. 4 and 10 are referred to as all subframe pools, and the subframe pool for the entire sensing-based UE is part of the entire subframe pool (that is, the first subframe sub-pool pool)).
  • some intervals within the entire subframe pool may be defined as a subframe pool (ie, a second subframe sub-pool) for the random resource selection based UE.
  • a partial interval in the entire subframe pool may be defined as a subframe pool (ie, a third subframe sub-pool) for the partial sensing based UE.
  • a first subframe sub-pool for all sensing terminals a second subframe sub-pool for partial sensing based terminals, and a third subframe sub- for random resource selection based terminals
  • the pools can be configured so that they do not overlap each other.
  • the use of the corresponding subframe may be determined according to a predetermined priority. For example, the highest priority is given by the third subframe sub-pool for the random resource selection based terminal, and the next highest priority is given by the second subframe sub-pool for the partial sensing based terminal, and based on the entire sensing based
  • the first subframe sub-pool for the terminal may be defined to have the lowest priority. However, this is merely an example and other priority may be set.
  • a set of subframes having an index of ⁇ t SL 0 , t SL 1 ,..., T SL Tmax -1 ⁇ represents candidates of the entire subframe pool. That is, candidates of the entire subframe pool indicated by A in FIG. 14 may correspond to the above-described set of bitmap application subframes.
  • the three subframe sub-pool candidates at the bottom of FIG. 14 represent the first subframe sub-pool candidates, the second subframe sub-pool candidates, and the third subframe sub-pool candidates, respectively.
  • first subframe sub-pool candidates may be applied to a full sensing based V-UE
  • second subframe sub-pool candidates may be applied to a partial sensing based P-UE
  • random resources may be applied.
  • Third subframe sub-pool candidates may be applied to the selection-based P-UE. As such, the union of the first, second and third subframe sub-pool candidates may correspond to the candidates of the entire subframe pool.
  • Y subframes ie, a third subframe sub-pool
  • a predetermined period eg, repeated in a predetermined period (eg, P subframes)
  • the remaining subframes except for the X subframes (that is, the second subframe sub-pool) repeated in the P subframes may be determined as the first subframe sub-pool candidates.
  • the Y subframes constituting the third subframe sub-pool candidates may be determined or selected as described in the example of FIG. 13. Accordingly, the resource for the random resource selection-based UE includes subframes having a bit value of 1 in the corresponding bitmap after repeated application of a bitmap of length L bitmap for subframe pool configuration among Y subframes. It may be determined as three subframe sub-pools.
  • the X subframes constituting the second subframe sub-pool candidates may be determined or selected as described in the example of FIG. 12. Accordingly, among the X subframes for the partial sensing based UE, after repeated application of a bitmap of length L bitmap for subframe pool configuration, subframes having a bit value of 1 in the corresponding bitmap are second subframes. May be determined as a sub-pool.
  • the X subframes and the Y subframes may be configured not to overlap each other.
  • Information indicating a sub-section to be used as X subframes or Y subframes may be set to a fixed value or may be configured through higher-end signaling such as RRC.
  • RRC Radio Resource Control
  • 15 is a diagram illustrating another example of a subframe pool configuration method according to the present invention.
  • the subframe pool for the random resource selection based terminal may be defined independently of the subframe pool for the full sensing based terminal. Also, the subframe pool for the partial sensing based terminal may be shared with the subframe pool for the full sensing based terminal.
  • the subframe pool (first subframe pool) for the partial sensing-based terminal and the entire sensing-based terminal is within one subframe pool (ie, the entire subframe pool) as defined in FIGS. 4 and 10. It may be defined as subframes that satisfy a special condition.
  • the subframe pool for the random resource selection based terminal is composed of a subframe pool (second subframe pool) independent of the subframe pool (first subframe pool) for the partial sensing based terminal and the entire sensing based terminal. Can be.
  • the subframe pool for the entire sensing based terminal may be defined as a part of the first subframe pool (that is, the first subframe sub-pool).
  • some intervals in the first subframe pool may be defined as a subframe pool (ie, a second subframe sub-pool) for the random resource selection based terminal.
  • a subframe pool (second subframe pool) independent of the subframe pool (first subframe pool) for the partial sensing based terminal and the entire sensing based terminal is configured for the partial sensing based terminal.
  • the first subframe sub-pool for the entire sensing terminal and the second subframe sub-pool for the partial sensing based terminal may be configured to not overlap each other.
  • the second subframe pool may be configured independently of the first subframe pool.
  • the use of the corresponding subframe may be determined according to a predetermined priority.
  • the second subframe sub-pool for the partial sensing based terminal may be defined to have a higher priority than the first subframe sub-pool for the entire sensing based terminal.
  • the candidates of the first subframe pool and the candidates of the second subframe pool are each of subframes having indices ⁇ t SL 0 , t SL 1 ,..., T SL Tmax ⁇ 1 ⁇ . It is represented as a set. More specifically, the candidates of the first subframe pool indicated by A in FIG. 15 may correspond to the first bitmap application subframe set, and the candidates of the second subframe pool indicated by B may be applied to the second bitmap application. It may correspond to a subframe set. That is, the candidates of the first subframe pool indicated by A and the second subframe pool indicated by B in FIG. 15 may be independent of each other.
  • the two subframe sub-pool candidates at the bottom of FIG. 15 indicate first subframe sub-pool candidates and second subframe sub-pool candidates, respectively, within the candidates of the first subframe pool indicated by A.
  • first subframe sub-pool candidates may be applied to the entire sensing based V-UE
  • second subframe sub-pool candidates may be applied to the partial sensing based P-UE.
  • the union of the first and second subframe sub-pool candidates may correspond to candidates of the first subframe pool (ie, candidates of the entire subframe pool indicated by A in FIG. 15).
  • Y subframes configured within candidates of the second subframe pool indicated by B of FIG. 15 may be determined or selected as described in the example of FIG. 13. Accordingly, the resource for the random resource selection-based UE includes subframes having a bit value of 1 in the corresponding bitmap after repeated application of a bitmap of length L bitmap for subframe pool configuration among Y subframes. It may be determined as three subframe sub-pools.
  • X subframes constituting the second subframe sub-pool candidates may be determined or selected as described in the example of FIG. 12. Accordingly, among the X subframes for the partial sensing based UE, after repeated application of a bitmap of length L bitmap for subframe pool configuration, subframes having a bit value of 1 in the corresponding bitmap are second subframes. May be determined as a sub-pool.
  • the X subframes and the Y subframes may be configured not to overlap each other.
  • Information indicating a sub-section to be used as X subframes or Y subframes may be set to a fixed value or may be configured through higher-end signaling such as RRC.
  • RRC Radio Resource Control
  • a sub for a full sensing based terminal and a partial sensing based terminal within candidates of a first subframe pool indicated by A of FIG. 15 (eg, a union of first and second subframe sub-pool candidates).
  • candidates of the first subframe pool indicated by A in FIG. 15 eg, Considering the union of the first and second subframe sub-pool candidates
  • All can be set to zero.
  • the subframe pool for the UE based on the random resource selection within the candidates of the second subframe pool indicated by B of FIG. 15 has a period corresponding to the P subframes and corresponds to the Y subframes. It may be configured by applying the bitmap only within the interval.
  • 16 is a flowchart illustrating a resource selection and resource pool determination method based on a terminal type according to the present invention.
  • the terminal may determine the type of the terminal.
  • the terminal type may be one of a first type (eg, full sensing based terminal), a second type (eg partial sensing based terminal), or a third type (eg, random resource selection based terminal). have.
  • This terminal type may be defined in the case of a UE autonomous resource selection mode (or mode 4).
  • first, second, or third subframe sub-pool candidates corresponding to a part of candidates of the entire subframe pool may be determined according to the type of the UE.
  • the candidates of the entire subframe pool may correspond to the aforementioned bitmap application subframe set. That is, candidates of the entire subframe pool may include specific subframes (eg, a subframe in which an SLSS resource is set, TDD DL sub) among all subframes belonging to a predetermined period (eg, SFN or DFN period). Frame or special subframe, and / or the above-described bitmap non-applying subframe).
  • the first type terminal may determine first subframe sub-pool candidates.
  • the first subframe sub-pool candidates may be determined from subframes excluding the second subframe sub-pool candidates and / or the third subframe sub-pool candidates from the candidates of the entire subframe pool.
  • candidates of the entire subframe pool to which the first, second and third subframe sub-pool candidates belong may be shared.
  • candidates of the entire subframe pool to which the first and second subframe sub-pool candidates belong are shared, but candidates of the entire subframe pool to which the third subframe sub-pool candidates belong may be independently determined.
  • the second type terminal may determine second subframe sub-pool candidates.
  • the second subframe sub-pull candidates may be determined as in the example of FIG. 12. For example, the collection of which is X * i 1 sub X subframes, starting, based on the offset of the frame to repeat a cycle corresponding to the number P of sub-frame sub-frame, a second sub-frame sub-in pool candidates Can be determined.
  • the third type terminal may determine third subframe sub-pool candidates.
  • the second subframe sub-pool candidates and the third subframe sub-pool candidates may be set not to overlap.
  • the UE may determine the subframe sub-pool from among the subframe sub-pool candidates based on the bitmap.
  • the first type terminal may repeatedly apply an L bitmap length bitmap among the first subframe sub-pool candidates to determine subframes having a position indicated by 1 in the bitmap as the first subframe sub-pool. .
  • the second type terminal may repeatedly apply an L bitmap length bitmap among the second subframe sub-pool candidates to determine subframes having the position indicated by 1 in the bitmap as the second subframe sub-pool. .
  • the third type terminal may repeatedly apply a Lmap length bitmap among the third subframe sub-pool candidates to determine subframes of the position indicated by 1 in the bitmap as the third subframe sub-pool. .
  • the second subframe sub-pool and the third subframe sub-pool may be set so as not to overlap.
  • the UE may determine a subframe to transmit SA and / or data.
  • the subframe for transmitting SA and / or data may correspond to TTI m + c, TTI m + e, TTI m + c ', and TTI m + e' in the foregoing examples.
  • the first type terminal is based on the SA and / or Data based on the sensing result on the first type of sensing window (eg, 1000 subframes) of the first subframe sub-pool determined by the bitmap. It may determine a subframe to transmit the.
  • the first type of sensing window eg, 1000 subframes
  • the second type terminal is configured on a sensing window of the second type (eg, subframes corresponding to the X subframe among 1000 subframes) among the second subframe sub-pools determined by the bitmap.
  • a subframe for transmitting SA and / or data may be determined based on the sensing result.
  • the third type terminal may randomly determine a subframe in which to transmit SA and / or data, from among the third subframe sub-pool determined by the bitmap.
  • the terminal may transmit SA and / or data to another terminal on the transmission subframe determined in operations S1641, S1643, and S1645.
  • various embodiments of the present disclosure may be implemented by hardware, firmware, software, or a combination thereof.
  • one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), General Purpose It may be implemented by a general processor, a controller, a microcontroller, a microprocessor, and the like.
  • scope of the disclosure include software or machine-executable instructions (eg, an operating system, an application, firmware, a program, etc.) to cause an operation in accordance with various embodiments of the method to be executed on an apparatus or a computer, and such software or Instructions, and the like, including non-transitory computer-readable media that are stored and executable on a device or computer.
  • software or machine-executable instructions eg, an operating system, an application, firmware, a program, etc.
  • 17 is a view for explaining the configuration of a wireless device according to the present invention.
  • a terminal device 100 transmitting control information and data for V2X communication or direct link (eg, D2D, ProSe, or SL) communication to another terminal device, and V2X communication or direct link (eg, FIG. 2 illustrates a base station apparatus 200 that provides control information supporting D2D, ProSe, or SL) communication to the terminal apparatus 100.
  • V2X communication or direct link eg, D2D, ProSe, or SL
  • the terminal device 100 may include a processor 110, an antenna unit 120, a transceiver 130, and a memory 140.
  • the processor 110 performs baseband related signal processing and may include an upper layer processor 111 and a physical layer processor 112.
  • the upper layer processor 111 may process operations of a medium access control (MAC) layer, a radio resource control (RRC) layer, or more upper layers.
  • the physical layer processor 112 may process operations (eg, uplink transmission signal processing and downlink reception signal processing) of a physical (PHY) layer.
  • the processor 110 may also control operations of the entire terminal device 100.
  • the antenna unit 120 may include one or more physical antennas, and may include multiple input multiple output (MIMO) transmission and reception when a plurality of antennas are included.
  • the transceiver 130 may include a radio frequency (RF) transmitter and an RF receiver.
  • the memory 140 may store computationally processed information of the processor 110, software related to an operation of the terminal device 100, an operating system, an application, and the like, and may include components such as a buffer.
  • the base station apparatus 200 may include a processor 210, an antenna unit 220, a transceiver 230, and a memory 240.
  • the processor 210 performs baseband-related signal processing and may include an upper layer processor 211 and a physical layer processor 212.
  • the higher layer processor 211 may process operations of the MAC layer, the RRC layer, or more higher layers.
  • the physical layer processor 212 may process an operation of the PHY layer (for example, downlink transmission signal processing and uplink reception signal processing).
  • the processor 210 may control the overall operation of the base station apparatus 200.
  • the antenna unit 220 may include one or more physical antennas, and may support MIMO transmission / reception if the antenna unit includes a plurality of antennas.
  • the transceiver 230 may include an RF transmitter and an RF receiver.
  • the memory 240 may store computationally processed information of the processor 210, software related to the operation of the base station apparatus 200, an operating system, an application, and the like, and may include components such as a buffer.
  • the processor 110 of the terminal device 100 may be set to implement the terminal operation in the embodiments described in the present invention.
  • the upper layer processor 111 of the processor 110 of the terminal device 100 may include a type determiner 1710, a subframe sub-pool candidate determiner 1720, and a subframe sub-pool determiner 1730. ) May include a transmission subframe determiner 1740.
  • the type determiner 1710 may include a first type (eg, full sensing based terminal), a second type (eg, partial sensing based terminal), and a third type (eg, random resource selection terminal) of the terminal. Can be determined.
  • a first type eg, full sensing based terminal
  • a second type eg, partial sensing based terminal
  • a third type eg, random resource selection terminal
  • the subframe sub-pool candidate determiner 1720 may determine the subframe sub-pool candidates in different ways according to the terminal type.
  • second subframe sub-pool candidates may be determined based on values of X, i 1 , and P among the entire subframe pool candidates.
  • values of X, i 1 , i 2 , Y, k, P, etc. may be fixed values in the system, may be determined based on values provided by the base station, and may be determined as one of a plurality of candidate values. It may be.
  • the first subframe sub-pool candidates may be determined as remaining subframes except the second subframe sub-pool candidates and the third subframe sub-pool candidates among the entire subframe pool candidates. have.
  • the subframe sub-pool determiner 1730 may determine, among the subframe sub-pool candidates, subframes indicated by 1 in the bitmap as the subframe sub-pool.
  • the transmission subframe determiner 1740 may determine, among each subframe sub-pool, a subframe to transmit SA and / or data based on sensing or randomly.
  • the physical layer processing unit 112 of the processor 110 of the terminal device 100 is transmitted from the upper layer processing unit 111 on the transmission subframe determined by the transmission subframe determination unit 1740 of the higher layer processing unit 111. Control information and / or data may be transmitted to another terminal device (not shown).
  • the processor 210 of the base station apparatus 200 may be configured to implement the base station operation in the embodiments described in the present invention.
  • the upper layer processor 211 of the processor 210 of the base station apparatus 200 may include a subframe sub-full candidate parameter determiner 1750 and a bitmap determiner 1760.
  • the subframe sub-pool candidate parameter determiner 1750 may determine parameters that are the basis of the determination of subframe sub-pool candidates to be applied to each type of terminal (eg, first, second, and third types). You can decide.
  • the subframe sub-pool candidate determiner 1750 may include parameters related to subframe sub-pool candidates for each type of terminal (eg, X, i 1 , i 2 , Y, k, P). Information about one or more).
  • the bitmap determiner 1760 may generate information (ie, a bitmap) indicating a subframe to be set as a subframe sub-pool among subframe sub-pool candidates for each type of terminal.
  • the information generated by the processor 211 in the upper layer may be transmitted to the terminal device 100 through the physical layer processor 212.

Landscapes

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

Abstract

L'invention concerne un procédé et un dispositif pour déterminer un groupe de ressources pour une communication V2X. Selon un mode de réalisation, la présente invention concerne un procédé de détermination d'un groupe de ressources de terminal pour une communication V2X peut comprendre les étapes consistant à : déterminer le type de terminal ; déterminer des sous-groupes de sous-trames candidats sur la base du type de terminal ; et déterminer un sous-groupe de sous-trames parmi les sous-groupes de sous-trames candidats sur la base d'un tableau de bits.
PCT/KR2017/012269 2016-11-04 2017-11-01 Procédé et dispositif pour déterminer un groupe de ressources dans un système de communication sans fil WO2018084575A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0146790 2016-11-04
KR1020160146790A KR20180050070A (ko) 2016-11-04 2016-11-04 V2x에서 단말 타입에 기초한 자원 풀 결정 방법 및 장치

Publications (1)

Publication Number Publication Date
WO2018084575A1 true WO2018084575A1 (fr) 2018-05-11

Family

ID=62077050

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2017/012269 WO2018084575A1 (fr) 2016-11-04 2017-11-01 Procédé et dispositif pour déterminer un groupe de ressources dans un système de communication sans fil

Country Status (2)

Country Link
KR (1) KR20180050070A (fr)
WO (1) WO2018084575A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110972278A (zh) * 2018-09-28 2020-04-07 电信科学技术研究院有限公司 一种资源选择方法、装置、终端及存储介质
CN111132067A (zh) * 2018-10-30 2020-05-08 中国移动通信有限公司研究院 信息处理方法、配置方法、终端及网络设备
WO2022027606A1 (fr) * 2020-08-07 2022-02-10 华为技术有限公司 Procédé, dispositif et système de transmission de données
WO2022206874A1 (fr) * 2021-04-02 2022-10-06 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Équipement utilisateur et procédé de surveillance de ressources dans une communication de liaison latérale
WO2023283845A1 (fr) * 2021-07-14 2023-01-19 北京小米移动软件有限公司 Procédé et appareil d'évaluation d'une ressource temps-fréquence à transmettre, procédé et appareil de sélection de ressource, et dispositif

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021226760A1 (fr) * 2020-05-09 2021-11-18 北京小米移动软件有限公司 Procédé et appareil de détection partielle, dispositif terminal et support de stockage
WO2022155308A1 (fr) * 2021-01-15 2022-07-21 Intel Corporation Communication de nouvelle radio (nr) en liaison latérale
CN114051743B (zh) * 2021-08-03 2024-06-14 北京小米移动软件有限公司 资源选择方法、装置和存储介质

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016163814A1 (fr) * 2015-04-08 2016-10-13 엘지전자 주식회사 Procédé et dispositif permettant d'émettre et de recevoir une pluralité de signaux de dispositif à dispositif (d2d) dans un système de communication sans fil

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016163814A1 (fr) * 2015-04-08 2016-10-13 엘지전자 주식회사 Procédé et dispositif permettant d'émettre et de recevoir une pluralité de signaux de dispositif à dispositif (d2d) dans un système de communication sans fil

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
"Details of Partial Sensing by Pedestrian UEs", R1-1608899, 3GPP TSG RAN WG1 MEETING #86BIS, 30 September 2016 (2016-09-30), XP051158351 *
"Discussion on Details of Pedestrian UE Partial Sensing", R1-1610035, 3GPP TSG RAN WG1 MEETING #86BIS, 30 September 2016 (2016-09-30), Lisbon, Portugal, XP051150060 *
ERICSSON: "Pool Design for V2V", R1-1609726, 3GPP TSG RAN WG1 MEETING #86BIS, 30 September 2016 (2016-09-30), Lisbon, Portugal, XP051149760 *
ZTE: "Details of Random Selection by Pedestrian UEs", R1-1609805, 3GPP TSG RAN WG1 MEETING #86BIS, 30 September 2016 (2016-09-30), Lisbon, Portugal, XP051158591 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110972278A (zh) * 2018-09-28 2020-04-07 电信科学技术研究院有限公司 一种资源选择方法、装置、终端及存储介质
CN111132067A (zh) * 2018-10-30 2020-05-08 中国移动通信有限公司研究院 信息处理方法、配置方法、终端及网络设备
WO2022027606A1 (fr) * 2020-08-07 2022-02-10 华为技术有限公司 Procédé, dispositif et système de transmission de données
WO2022206874A1 (fr) * 2021-04-02 2022-10-06 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Équipement utilisateur et procédé de surveillance de ressources dans une communication de liaison latérale
WO2023283845A1 (fr) * 2021-07-14 2023-01-19 北京小米移动软件有限公司 Procédé et appareil d'évaluation d'une ressource temps-fréquence à transmettre, procédé et appareil de sélection de ressource, et dispositif

Also Published As

Publication number Publication date
KR20180050070A (ko) 2018-05-14

Similar Documents

Publication Publication Date Title
WO2018062967A2 (fr) Procédé et appareil permettant de déterminer un groupe de ressources
WO2018084575A1 (fr) Procédé et dispositif pour déterminer un groupe de ressources dans un système de communication sans fil
EP3520523A2 (fr) Procédé et appareil permettant de déterminer un groupe de ressources
WO2022019714A1 (fr) Procédé et appareil de configuration et de signalisation de ressources de liaison latérale pour une coordination inter-ue
WO2018062966A1 (fr) Procédés et dispositifs d'émission et de réception de signaux
WO2020197298A1 (fr) Procédé et appareil permettant d'initier une connexion de commande de ressource radio (rrc) pour une communication de véhicule à tout (v2x)
WO2020067815A1 (fr) Procédé et appareil de transmission de signal de liaison montante
WO2018143689A9 (fr) Procédé d'indication d'informations de ressources préoccupées et dispositif correspondant
WO2018143786A1 (fr) Procédé d'exécution d'une communication de liaison latérale dans un système de communications sans fil, et dispositif associé
WO2018174611A1 (fr) Procédé permettant d'exécuter une communication v2x exécutée par un terminal v2x dans un système de communication sans fil et terminal utilisant ledit procédé
WO2018044080A1 (fr) Procédé de transmission d'informations de commande de liaison descendante dans un système de communication sans fil, et dispositif associé
EP3942725A1 (fr) Procédé et appareil pour l'émission et la réception d'une rétroaction de liaison latérale dans un système de communication
EP3857801A1 (fr) Procédé et appareil de transmission de signal de liaison montante
WO2021029596A1 (fr) Procédé et appareil pour émettre et recevoir une réponse harq dans un système de communication prenant en charge la communication de liaison latérale
WO2018182262A1 (fr) Procédé de performance de communication v2x exécuté par un terminal v2x dans un système de communication sans fil et terminal utilisant le procédé
EP3744142A1 (fr) Procédé et appareil de transmission d'informations de liaison montante
WO2020091492A1 (fr) Procédé pour effectuer une procédure de rétroaction harq dans un système v2x nr, et dispositif pour ce dernier
WO2020067816A1 (fr) Procédé et dispositif pour réalisation d'une opération harq pour système v2x nr
EP3482594A1 (fr) Procédé et appareil d'émission et de réception d'informations de commande de liaison descendante dans un système de communication sans fil
WO2017135573A1 (fr) Procédé de transmission de signaux sur la base d'une technologie d'accès multi-radio dans un système de communication sans fil et appareil associé
WO2018062948A1 (fr) Procédé et appareil permettant de transmettre des informations de commande et des données de v2x
WO2020036455A1 (fr) Procédé de transmission ou de réception de signal de synchronisation dans un système v2x nr, et appareil associé
WO2022086251A1 (fr) Procédé et dispositif de sélection de ressource dans un système de communication sans fil
WO2009134103A2 (fr) Procédé de transmission d'informations système et structure de sous-trame
WO2021162397A1 (fr) Procédé et dispositif pour déterminer des ressources devant être détectées pour une communication de dispositif à dispositif dans un système de communication sans fil

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17867707

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 30/08/2019)

122 Ep: pct application non-entry in european phase

Ref document number: 17867707

Country of ref document: EP

Kind code of ref document: A1