WO2019155642A1 - Dispositif utilisateur - Google Patents

Dispositif utilisateur Download PDF

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Publication number
WO2019155642A1
WO2019155642A1 PCT/JP2018/004753 JP2018004753W WO2019155642A1 WO 2019155642 A1 WO2019155642 A1 WO 2019155642A1 JP 2018004753 W JP2018004753 W JP 2018004753W WO 2019155642 A1 WO2019155642 A1 WO 2019155642A1
Authority
WO
WIPO (PCT)
Prior art keywords
user device
communication
direct communication
transmission
side link
Prior art date
Application number
PCT/JP2018/004753
Other languages
English (en)
Japanese (ja)
Inventor
倫己 丸小
真平 安川
理一 工藤
Original Assignee
株式会社Ｎｔｔドコモ
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 株式会社Ｎｔｔドコモ filed Critical 株式会社Ｎｔｔドコモ
Priority to PCT/JP2018/004753 priority Critical patent/WO2019155642A1/fr
Publication of WO2019155642A1 publication Critical patent/WO2019155642A1/fr

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Classifications

    • 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

  • LTE Long Term Evolution
  • LTE-A Long Term Evolution Advanced
  • NR New Radio
  • 5G New Radio
  • D2D Device-to-Device
  • V2X It is a figure for demonstrating a radio
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced and subsequent schemes (eg, NR).
  • a certain terminal transmits data to other terminals via SL (Sidelink).
  • the P-UE is arranged in the vehicle where the V-UE is installed.
  • a P-UE arranged in a vehicle in which the V-UE is installed transmits a signal, transmission resources that the V-UE may use are occupied.
  • the V-UE erroneously detects that, for example, a P-UE owned by a pedestrian is located on the road.
  • the P-UE since a V-UE installed in a vehicle generally has a longer lifetime than a P-UE such as a smartphone, the P-UE may have a better communication function than the V-UE.
  • the V-UE determines whether or not the P-UE is detected in the vehicle in which the V-UE is installed.
  • a method for detecting a P-UE in a vehicle when a side link communication signal having a received power of P1 [dBm] or more is continuously received from the same transmission source for T1 time or more, the V-UE It may be detected that a communication terminal is present in the same vehicle.
  • the V-UE receives a side link communication signal having a received power of P1 [dBm] or more from the same transmission source N1 times or more in time T1
  • the communication terminal as the transmission source is in the same vehicle. May be detected.
  • P1, T1 or N1 may be a predetermined threshold value or a dynamically set threshold value.
  • step S11 If a P-UE is detected (YES in S11), the process proceeds to step S12. If a P-UE is not detected (NO in S11), the process proceeds to step S14.
  • Continuous receiving for at least T1 time may be to continuously receive signals transmitted from the same transmission source for at least T1 time in units of radio frames.
  • the “number of receptions” may be the number of transport blocks or the number of upper layer packets.
  • step S14 the V-UE performs side link transmission.
  • the “side link transmission” in the step shown in FIG. 4 may be “side link communication”.
  • step S24 the V-UE notifies the P-UE of an instruction to cause the P-UE to perform side link transmission performed by the V-UE.
  • the V-UE may cause the P-UE to perform side link transmission. it can.
  • the P-UE performs side link transmission in the same transmission cycle, transmission count, and resource sensing cycle and range as the V-UE. That is, the P-UE performs direct communication with parameters related to direct communication of the V-UE.
  • step S24 may not be executed. That is, the V-UE may only stop transmission when detecting a P-UE having higher communication performance than the own device.
  • step S25 if the P-UE cannot receive a signal with the received power P3 [dBm] or more from the V-UE executing the side link communication within the same vehicle for T3 time or more, Link communication may be resumed.
  • step S25 the P-UE receives N3 times of the number of times of reception of a signal having a reception power P3 [dBm] or more from the V-UE executing the side link communication in the same vehicle in T3 time.
  • the side link communication may be resumed.
  • P3, T3, or N3 may be a predetermined threshold value or a dynamically set threshold value.
  • step S32 the P-UE stops transmission.
  • the P-UE may change the transmission cycle or the resource sensing cycle.
  • the transmission cycle or the resource sensing cycle may be longer than the original transmission cycle.
  • step S33 the P-UE notifies the V-UE of an instruction to cause the V-UE to perform side link transmission.
  • the notification detects a V-UE in the same vehicle
  • the P-UE can cause the V-UE to perform side link transmission.
  • the V-UE performs side link transmission.
  • Step S33 may not be executed. That is, the P-UE may only stop transmission when it detects the V-UE.
  • step S34 the P-UE performs side link transmission in the same transmission cycle, transmission count, and resource sensing cycle and range as the V-UE.
  • the “side link transmission” in the step shown in FIG. 6 may be “side link communication”.
  • FIG. 7 is a flowchart for explaining the direct communication procedure (2) in the P-UE in the embodiment of the present invention.
  • FIG. 7 is a flowchart illustrating an example of a procedure when the P-UE starts direct communication, that is, side link communication or during side link communication.
  • step S42 the communication performance of the V-UE is compared with the communication performance of the P-UE.
  • the communication performance may be compared by, for example, the hardware version or software version of the communication terminal.
  • the comparison of the communication performance between the V-UE and the P-UE in step S42 may be replaced with a determination as to whether or not the V-UE has a predetermined communication function.
  • the predetermined communication function is, for example, a GPS function or a function for acquiring CAN information.
  • step S43 the P-UE notifies the V-UE of an instruction to stop side link transmission in the V-UE. Note that step S43 may not be executed. That is, the P-UE may continue transmission when it detects a V-UE having lower communication performance than its own device.
  • step S45 the P-UE stops side link transmission.
  • the P-UE may change the transmission cycle or the resource sensing cycle.
  • the transmission cycle or the resource sensing cycle may be longer than the original transmission cycle.
  • side link transmission in the step shown in FIG. 7 may be “side link communication”.
  • FIG. 8 is a sequence diagram for explaining a control procedure of direct communication by the network in the embodiment of the present invention.
  • step S51 the V-UE that is the user apparatus 200A notifies the base station apparatus 100 of the terminal information.
  • the terminal information includes, for example, information on a communication function to be supported including presence / absence of a function of acquiring information on a vehicle such as position information, speed information, a traveling direction, information on a communication terminal including a UE ID, a side link communication function, It includes at least one hardware version or software version of the communication terminal, information on communication performance including GPS accuracy, packet ID, and vehicle type information.
  • Step S51 may be periodically performed by the V-UE.
  • step S52 the P-UE that is the user apparatus 200B notifies the base station apparatus 100 of the terminal information.
  • Step S52 may be periodically performed by the P-UE.
  • step S51 and step S52 may each be independently performed at arbitrary timings.
  • step S53 the base station apparatus 100 determines which of the V-UE and the P-UE performs side link communication as a V-UE based on the terminal information notified from the V-UE and the P-UE. Is determined in the same manner as the flowchart shown in FIG. 5 or FIG. 7, and the result is notified to the V-UE as “terminal proximity notification”.
  • the “terminal proximity notification” may include information indicating that the P-UE exists in the same vehicle where the V-UE is installed.
  • step S54 the base station apparatus 100 notifies the “terminal proximity notification” similar to step S53 to the P-UE.
  • step S55 the V-UE changes the operation state of the side link communication based on the “terminal proximity notification” received in step S53.
  • step S56 the P-UE changes the operation state of the side link communication based on the “terminal proximity notification” received in step S54.
  • the change of the operation state may be the same as the operation related to the change of the side link communication state of the V-UE and P-UE described with reference to FIGS.
  • the base station apparatus 100 may transmit a notification for returning to the V-UE or P-UE based on the usage mode related to the side link communication.
  • the V-UE or P-UE that has received the notification returns based on the usage mode related to the side link communication.
  • the user device 200 detects whether there is another user device 200 in the vehicle, and thereby detects the user device 200 that performs side link communication as an in-vehicle communication terminal or a normal communication. You can select from any of the terminals. Further, the user device 200 detects whether there is another user device 200 in the vehicle and compares the communication performance to cause the user device 200 suitable for the side link communication to execute the side link communication. Can do. Moreover, the base station apparatus 100 determines the user apparatus 200 suitable for side link communication based on the terminal information notified from the user apparatus 200, and notifies the user apparatus 200 of the user apparatus 200 suitable for side link communication. The device 200 can perform side link communication.
  • the base station apparatus 100 and the user apparatus 200 include functions for implementing the above-described embodiments. However, each of the base station apparatus 100 and the user apparatus 200 may have only some functions in the embodiments.
  • FIG. 9 is a diagram illustrating an example of a functional configuration of the base station apparatus 100.
  • the base station apparatus 100 includes a transmission unit 110, a reception unit 120, a setting information management unit 130, and a notification information processing unit 140.
  • the functional configuration shown in FIG. 9 is only an example. As long as the operation
  • the transmission unit 110 includes a function of generating a signal to be transmitted to the user apparatus 200 and transmitting the signal wirelessly.
  • the reception unit 120 includes a function of receiving various signals transmitted from the user apparatus 200 and acquiring, for example, higher layer information from the received signals. Further, the transmission unit 110 has a function of transmitting NR-PSS, NR-SSS, NR-PBCH, DL / UL control signals, and the like to the user apparatus 200. For example, the transmission unit 110 transmits information indicating that another terminal is close to the user device 200, and the reception unit 120 receives terminal information from the user device 200.
  • the transmission unit 210 creates a transmission signal from the transmission data and transmits the transmission signal wirelessly.
  • the receiving unit 220 wirelessly receives various signals and acquires higher layer signals from the received physical layer signals.
  • the receiving unit 220 has a function of receiving NR-PSS, NR-SSS, NR-PBCH, DL / UL control signals and the like transmitted from the base station apparatus 100.
  • the transmission unit 210 transmits PSCCH (Physical Sidelink SharePSChannel), PSDCH (Physical Sidelink Discovery Channel), PSBCH (Physical Sidelink Broadcast Channel) to other user apparatuses 200 as D2D communication. ) And the like, and the receiving unit 120 receives PSCCH, PSSCH, PSDCH, PSBCH, and the like from the other user apparatus 200.
  • PSCCH Physical Sidelink SharePSChannel
  • PSDCH Physical Sidelink Discovery Channel
  • PSBCH Physical Sidelink Broadcast Channel
  • the storage device 1002 is a computer-readable recording medium.
  • the storage device 1002 is at least one of ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), and the like. It may be configured.
  • the storage device 1002 may be called a register, a cache, a main memory (main storage device), or the like.
  • the storage device 1002 can store a program (program code), a software module, and the like that can be executed to perform the processing according to the embodiment of the present invention.
  • the communication device 1004 is hardware (transmission / reception device) for performing communication between computers via a wired and / or wireless network, and is also referred to as a network device, a network controller, a network card, a communication module, or the like.
  • the transmission unit 110 and the reception unit 120 of the base station device 100 may be realized by the communication device 1004.
  • the transmission unit 210 and the reception unit 220 of the user device 200 may be realized by the communication device 1004.
  • the input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that accepts an input from the outside.
  • the output device 1006 is an output device (for example, a display, a speaker, an LED lamp, etc.) that performs output to the outside.
  • the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).
  • each device such as the processor 1001 and the storage device 1002 is connected by a bus 1007 for communicating information.
  • the bus 1007 may be configured with a single bus or may be configured with different buses between apparatuses.
  • the control unit performs communication performance between the other user device determined to be close and the user device.
  • the communication performance of the other user device determined to be close by comparing the communication functions is higher than the communication performance of the user device, the direct communication of the user device is stopped or the direct communication parameter If the communication performance of the other user device determined to be close is lower than the communication performance of the user device, the user device is controlled to maintain the communication parameters directly. May be.
  • the user device 200 detects whether there is another user device 200 in the vehicle and compares the communication performance to execute the side link communication to the user device 200 suitable for the side link communication. Can be made.
  • the operations of a plurality of functional units may be physically performed by one component, or the operations of one functional unit may be physically performed by a plurality of components.
  • the processing order may be changed as long as there is no contradiction.
  • the base station apparatus 100 and the user apparatus 200 have been described using functional block diagrams. However, such apparatuses may be realized by hardware, software, or a combination thereof.
  • the software operated by the processor of the base station apparatus 100 according to the embodiment of the present invention and the software operated by the processor of the user apparatus 200 according to the embodiment of the present invention are random access memory (RAM), flash memory, and reading, respectively. It may be stored in a dedicated memory (ROM), EPROM, EEPROM, register, hard disk (HDD), removable disk, CD-ROM, database, server or any other suitable storage medium.
  • Base station apparatus 100 may also be referred to by those skilled in the art as NB (NodeB), eNB (evolved NodeB), gNB, Base Station, or some other appropriate terminology.
  • NB NodeB
  • eNB evolved NodeB
  • gNB Base Station
  • the direct communication control unit 240 is an example of a detection unit, a notification unit, or a control unit.
  • the transmission unit 210 or the reception unit 220 is an example of a communication unit.

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

Abstract

L'invention concerne un dispositif utilisateur qui effectue une communication directe avec un autre dispositif utilisateur, et qui comprend : une unité de détection qui détermine si l'autre dispositif utilisateur se situe ou non à proximité du dispositif utilisateur ; et une unité de commande qui commande la communication directe du dispositif utilisateur sur la base du résultat de la détermination obtenu à partir de l'unité de détection ou de la notification transmise à partir de l'autre dispositif utilisateur ou d'un réseau.
PCT/JP2018/004753 2018-02-09 2018-02-09 Dispositif utilisateur WO2019155642A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/004753 WO2019155642A1 (fr) 2018-02-09 2018-02-09 Dispositif utilisateur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/004753 WO2019155642A1 (fr) 2018-02-09 2018-02-09 Dispositif utilisateur

Publications (1)

Publication Number Publication Date
WO2019155642A1 true WO2019155642A1 (fr) 2019-08-15

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PCT/JP2018/004753 WO2019155642A1 (fr) 2018-02-09 2018-02-09 Dispositif utilisateur

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009152995A (ja) * 2007-12-21 2009-07-09 Toshiba Corp 通信システム、通信システムに用いられる送信端末、通信システムに用いられる中継端末、通信システムにおける通信方法及び通信システムに用いられるコンピュータプログラム

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009152995A (ja) * 2007-12-21 2009-07-09 Toshiba Corp 通信システム、通信システムに用いられる送信端末、通信システムに用いられる中継端末、通信システムにおける通信方法及び通信システムに用いられるコンピュータプログラム

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
LENOVO: "Discussion on random selection by pedestrian UEs", 3GPP TSG-RANWGL#86B R1-1609402, 14 October 2016 (2016-10-14), XP051149445 *
LENOVO: "Discussion on resource selection for pedestrian UEs", 3GPP TSG-RAN WG1#86 R1-167512, 26 August 2016 (2016-08-26), XP051140698 *

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