WO2013149428A1 - Procédé de réalisation d'une commutation vers un mode de communication dispositif-à-dispositif, appareil de réseau et équipement utilisateur - Google Patents

Procédé de réalisation d'une commutation vers un mode de communication dispositif-à-dispositif, appareil de réseau et équipement utilisateur Download PDF

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Publication number
WO2013149428A1
WO2013149428A1 PCT/CN2012/076062 CN2012076062W WO2013149428A1 WO 2013149428 A1 WO2013149428 A1 WO 2013149428A1 CN 2012076062 W CN2012076062 W CN 2012076062W WO 2013149428 A1 WO2013149428 A1 WO 2013149428A1
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WIPO (PCT)
Prior art keywords
terminal
network side
location information
direct communication
current terminal
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Ceased
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PCT/CN2012/076062
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English (en)
Chinese (zh)
Inventor
王曼
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ZTE Corp
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ZTE Corp
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Publication of WO2013149428A1 publication Critical patent/WO2013149428A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/03—Reselecting a link using a direct mode connection
    • H04W36/033—Reselecting a link using a direct mode connection in pre-organised networks

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a method, a network device, and a terminal for implementing a mode of switching to an inter-device communication mode.
  • the communication network structure and communication mode in any way are, in essence, traditional communication methods. That is to say, the terminal (UE, or user equipment) performs any communication activity with the outside world, and any command must be transmitted through the system side (or network side) to interact with the system side. Even in the case of being close to the object to be communicated, communication between the terminal and the communication object is still to be performed through the system side. This is true for both ad-hoc networks and the Internet of Things. In essence, any short communication requires a series of signaling interactions between the terminal and the system.
  • the technical problem to be solved by the present invention is to provide a method, a network device and a terminal for realizing switching to an inter-device communication mode, which shortens communication time, simplifies communication flow, and saves network resources.
  • the present invention provides a method for switching to a direct communication (D2D) mode between devices, and the network side performs the following processing:
  • the network side acquires location information of the current terminal and location information of the D2D object of the current terminal;
  • Determining, by the network side, that the current terminal is capable of interacting with the D2D object according to the acquired location information When establishing direct communication, notify the current terminal.
  • the method further includes: the network side receiving the current terminal to report the D2D object list to the network side.
  • the D2D object of the current terminal is one or more D2D objects in the D2D object list.
  • the acquiring, by the network side, the location information of the current terminal and the location information of the D2D object of the current terminal the network side periodically acquiring the location information of the current terminal and the location information of the D2D object of the current terminal, or After receiving the request sent by the current terminal, the network side acquires the location information of the current terminal and the location information of the D2D object of the terminal.
  • the current terminal being able to establish direct communication with the D2D object means that the distance between the current terminal and the D2D object is sufficient to establish direct communication that meets a preset communication indicator.
  • the present invention further provides a network side device for implementing a terminal to switch to a direct communication between devices (D2D) mode, comprising a location information acquisition module, a determination module and a notification module, wherein:
  • the location information obtaining module is configured to: obtain location information of the current terminal and location information of the D2D object of the current terminal;
  • the determining module is configured to: determine, according to the location information acquired by the acquiring module, whether the current terminal can establish direct communication with the D2D object;
  • the notification module is configured to notify the current terminal when the determining module determines that the current terminal can establish direct communication with the D2D object.
  • the network side device further includes a receiving module, configured to: receive the current terminal to report the D2D object list to the network side device.
  • the D2D object of the current terminal is one or more D2D objects in the D2D object list.
  • the location information obtaining module is configured to: obtain the location information of the current terminal and the location information of the D2D object of the current terminal in the following manner: periodically acquiring the location information of the current terminal and the location of the D2D object of the current terminal.
  • Information, or received at the network side device After obtaining the request sent by the current terminal, the location information of the current terminal and the location information of the D2D object of the terminal are obtained.
  • the current terminal being able to establish direct communication with the D2D object means that the distance between the current terminal and the D2D object is sufficient to establish direct communication that meets a preset communication indicator.
  • the present invention also provides a method for switching to a direct communication (D2D) mode between devices, and the terminal performs the following processing:
  • the terminal reports the D2D object list to the network side
  • the terminal After receiving the notification that the terminal transmitted by the network side can establish direct communication with the D2D object, the terminal confirms whether direct communication is established.
  • the terminal reporting the D2D object list to the network side includes: when the terminal accesses the network, the terminal reports the D2D object list to the network side or sends the D2D object list to the network side after accessing the network.
  • the method further includes: the terminal initiating a request to establish direct communication to the network side before or after reporting the D2D object list to the network side.
  • the terminal carries the target D2D object information in the request for establishing direct communication initiated by the network side.
  • the present invention further provides a terminal for implementing a direct communication to device (D2D) mode, including a reporting module, a receiving module, and a confirmation module, where:
  • the reporting module is configured to: report a D2D object list to the network side;
  • the receiving module is configured to: receive a notification that the terminal sent by the network side can establish direct communication with the D2D object;
  • the confirmation module is configured to: after the receiving module receives the notification that the terminal sent by the network side can establish direct communication with the D2D object, confirm whether to establish direct communication.
  • the upper module is configured to: ⁇ / br> ⁇ /RTI> ⁇ /RTI> ⁇ /RTI> ⁇ /RTI> ⁇ /RTI> ⁇ /RTI> ⁇ /RTI> ⁇ /RTI> ⁇ /RTI> ⁇ /RTI> ⁇ /RTI> ⁇ /RTI> ⁇ /RTI>
  • the reporting module is further configured to: initiate a request to establish direct communication to the network side before or after reporting the D2D object list to the network side.
  • the reporting module is configured to: carry the target D2D object information in the request for establishing direct communication initiated by the network side.
  • the device and the terminal of the embodiment of the present invention when the two terminals are close to each other, direct communication between the terminals can be realized, that is, the communication between the terminals directly passes through a "terminal-terminal" such direct communication.
  • the mode is realized, which will undoubtedly save time for interaction with the upper layer, simplify the communication process, and greatly save network resources.
  • This direct communication mode is more meaningful, especially when it is necessary to transfer large amounts of data between two directly communicating terminals.
  • the scenario in which the present invention can be applied may be, for example, a scenario in which a voice call is required at an airport or a station; or in the case of data transmission, when the two parties of the communication are close to each other (for example, when the two parties are in the same office building), data or big data needs to be exchanged with each other.
  • the scene of information transmission BRIEF abstract
  • FIG. 2 is a schematic structural diagram of a network side device according to Embodiment 2 of the present invention.
  • FIG. 3 is a flowchart of operation of a terminal side according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic structural diagram of a terminal side according to Embodiment 2 of the present invention.
  • FIG. 5 is a flowchart of a direct communication mode switching between devices according to Embodiment 3 of the present invention. Preferred embodiment of the invention
  • the (Device to Device) object (hereinafter referred to as the D2D object) is in the vicinity, and the direct connection mode can be established.
  • the terminal confirms and establishes a direct connection with the D2D object to perform direct communication between devices.
  • the terminal described herein refers to a terminal that has and has turned on the direct communication function.
  • the network refers to a communication system other than a terminal, for example, including an access network (e.g., a base station).
  • an access network e.g., a base station
  • This embodiment describes how to implement the direct communication mode switching between devices on the network side. As shown in FIG. 1 , the following steps are included:
  • Step 110 The network side acquires location information of the current terminal and location information of the D2D object of the current terminal.
  • the D2D object of the current terminal can be reported to the network side by the terminal through the D2D object list.
  • the D2D object that needs to obtain the location information on the network side is all D2D objects in the D2D object list.
  • the D2D object of the current terminal can also be directly notified to the network side device by the current terminal.
  • the network side only needs to acquire the location information of the target D2D object notified by the terminal.
  • the terminal has a D2D object list, the terminal notifies the D2D object on the network side that it is part of the D2D object list by a message.
  • the network side may periodically obtain the location information of the current terminal and the location information of the D2D object of the current terminal, or may obtain the location information of the current terminal and the location information of the terminal after receiving the request (or notification) sent by the current terminal.
  • the location information of the D2D object may periodically obtain the location information of the current terminal and the location information of the D2D object of the current terminal, or may obtain the location information of the current terminal and the location information of the terminal after receiving the request (or notification) sent by the current terminal.
  • the location information of the D2D object may periodically obtain the location information of the current terminal and the location information of the D2D object of the current terminal, or may obtain the location information of the current terminal and the location information of the terminal after receiving the request (or notification) sent by the current terminal.
  • the location information of the D2D object may periodically obtain the location information of the current terminal and the location information of the D2D object of the current terminal, or may obtain the location information of the current terminal and the location information of the terminal after receiving the request (or notification)
  • Step 120 The network side notifies the current terminal when the current terminal can establish direct communication with the D2D object according to the acquired location information.
  • the fact that the current terminal can establish direct communication with the D2D object means that the distance between the current terminal and the D2D object is sufficient to establish direct communication that satisfies the preset communication indicator.
  • the preset communication indicators include, for example, a bit error rate and/or a system throughput.
  • the network side device that implements the foregoing method, as shown in FIG. 2, includes: a location information acquiring module, a determining module, and a notification module, where:
  • the location information obtaining module is configured to acquire location information of the current terminal and location information of the D2D object of the current terminal;
  • the determining module is configured to determine, according to the location information acquired by the acquiring module, whether the current terminal can establish direct communication with the D2D object;
  • the notification module is configured to notify the current terminal when the determining module determines that the current terminal can establish direct communication with the D2D object.
  • the network side device may further include a receiving module, configured to receive the current terminal to report the D2D object list to the network side device.
  • the D2D object of the current terminal described above is one or more D2D objects in the D2D object list.
  • the location information obtaining module is configured to acquire location information of the current terminal and location information of the D2D object of the current terminal in the following manner: periodically acquiring location information of the current terminal and location information of the D2D object of the current terminal, or After receiving the request sent by the current terminal, the network side device acquires location information of the current terminal and location information of the D2D object of the terminal.
  • This embodiment describes how the terminal implements the direct communication mode switching between devices. As shown in FIG. 3, the following steps are included:
  • Step 210 The terminal reports the D2D object list to the network side.
  • the terminal may report the D2D object list to the network side when accessing the network or report the D2D object list to the network side after accessing the network.
  • the terminal initiates a request to establish direct communication to the network side before or after the D2D object list is sent to the network side.
  • the target D2D object information can be carried in the request.
  • Step 220 After receiving the notification that the local terminal sent by the network side can establish direct communication with the D2D object, the terminal confirms whether to establish direct communication.
  • the reporting module is configured to report a D2D object list to the network side
  • the receiving module is configured to receive, by the network side, a notification that the terminal can establish direct communication with the D2D object;
  • the confirmation module is configured to confirm whether the direct communication is established after the receiving module receives the notification that the terminal sent by the network side can establish direct communication with the D2D object.
  • the reporting module is configured to report the D2D object list to the network side in the following manner: when the terminal accesses the network, report the D2D object list of the terminal to the network side, or list the D2D object after the terminal accesses the network. Reported to the network side.
  • the reporting module is further configured to initiate a request to establish direct communication to the network side before or after reporting the D2D object list to the network side.
  • the target D2D object information can be carried in the request.
  • the network side operation and the terminal side operation are combined to be described. As shown in FIG. 5, the following steps are included:
  • Step 310 The terminal reports the D2D object list to the network.
  • the D2D object list can be used as a group in the address book or it can exist separately.
  • the objects stored in the D2D object list are objects that the current communication party may need to transmit large amounts of data, and are usually communication objects that need to be closely contacted frequently, such as friends of the communication party, family members, and closely-connected business partners.
  • the terminal may report the D2D object list to the network in the process of accessing the network, or report the D2D object list to the network after accessing the network (for example, when the D2D object list is updated), so that the network can query the D2D object. Relevant information can be sent in time when nearby.
  • Step 320 The network side acquires location information of the terminal and location information of the terminal D2D object.
  • the network side may periodically acquire location information of the terminal or location information of all D2D objects in the D2D object list, or acquire the request after receiving the terminal. If the target D2D object is carried in the request of the terminal, the network side may only obtain the location information of the target D2D object without acquiring the location information of all D2D objects in the D2D object list.
  • the network side can obtain the location information of the terminal or the D2D object terminal in any of the following ways:
  • the network side can determine the location information of the terminal (including the current terminal and the D2D object terminal) through a plurality of (for example, three or more) base stations.
  • Step 330 The network side notifies the terminal when it is determined that the terminal can establish direct communication with the D2D object according to the obtained location information.
  • the terminal can establish direct communication with the D2D object, that is, the distance between the terminal and the D2D object is sufficient to establish direct communication that satisfies the preset communication indicator.
  • Communication indicators here include, for example, bit error rate and/or system throughput.
  • Step 340 The terminal confirms whether direct communication is established. If established, the terminal enters the direct communication mode with the D2D object, and if not, continues the normal process or ends.
  • the network side may send an acknowledgement message to the terminal at the same time as the terminal is notified, and let the terminal confirm whether the direct communication mode needs to be established. If the terminal confirms, the terminal enters the direct communication mode to establish a connection between the terminal and the D2D object. Or the network side can also use the inquiry menu to remind the terminal user whether to establish direct communication. If so, the terminal establishes direct communication with the D2D object.
  • the terminal can utilize the interference signal of the cellular network as a useful signal in communication to implement direct communication between the UE and the D2D object.
  • the scenario of this example is that when the UE is greatly interfered by the cellular system and cannot communicate normally with the communication object, it selects to enter the D2D direct communication mode, and establishes a direct communication mode with the D2D communication object to communicate.
  • the UE receives relatively large interference from other links. Especially when the UE is at the edge of the cellular network, the interference from the terminal with strong signal will be relatively large. At this time, the UE that is greatly interfered cannot communicate well with the communication object in the building in its own cellular network. Moreover, the communication in these buildings is generally dense, and the data to be transmitted is relatively large. At this time, the communication mode can be switched.
  • Step 1 The UE reports the D2D object list to the network side.
  • Step 2 the UE periodically evaluates the received interference, if it is less than the self-interference acceptance threshold, then maintains the existing communication state, and continues to step 2, if the received interference is greater than the self-interference acceptance threshold, then proceeds to step 3;
  • Step 3 The UE informs the network side that the D2D communication mode needs to be established, and after receiving the notification that the network side can establish direct communication with the D2D object, enters the direct communication program with the D2D object.
  • step 2 may be performed first.
  • the UE After determining that the interference is greater than the interference acceptance threshold, the UE reports the D2D object list to the network side, and informs the network side that the D2D communication mode needs to be established. At this time, the network side acquires the UE. The location information and the location information of each D2D object in the D2D object list of the UE to determine whether the UE can establish direct communication.
  • the UE may also notify the network side of the target D2D object while notifying the network side that the D2D communication mode needs to be established.
  • the network side may directly determine whether direct communication can be established according to the current location of the UE and the current location of the target D2D object.
  • the scenario for this example is: Learn to have friends at the airport and take different flights. In different terminals, you need to establish direct communication with your friends and share the large-capacity photo information when you travel together. Specific steps:
  • Step 1 Add a friend to the D2D object list, and report the updated D2D object list to the network side;
  • Step 2 The UE informs the network side that the D2D communication mode needs to be established with the friend, and receives the prompt message sent by the network side: Is the communication connection established with the **D2D object? Alternatively, the terminal establishes a D2D communication connection with the friend.
  • the method, the device and the terminal of the embodiment of the present invention can realize direct communication between terminals when the two terminals are close to each other, that is, the communication between the terminals directly passes through the "terminal-terminal".
  • a direct communication mode to achieve will undoubtedly save time with the upper layer, simplify the communication process, and greatly save network resources.
  • This direct communication mode is more meaningful, especially when it is necessary to transfer large amounts of data between two directly communicating terminals.
  • the scenario in which the present invention can be applied may be, for example, a scenario in which a voice call is required at an airport or a station; or in the case of data transmission, when the two parties of the communication are close to each other (for example, when the two parties are in the same office building), data or big data needs to be exchanged with each other.
  • the scene of information transmission may be, for example, a scenario in which a voice call is required at an airport or a station; or in the case of data transmission, when the two parties of the communication are close to each other (for example, when the two parties are in the same office building), data or big data needs to be exchanged with each other.
  • the scene of information transmission may be, for example, a scenario in which a voice call is required at an airport or a station; or in the case of data transmission, when the two parties of the communication are close to each other (for example, when the two parties are in the same office building), data or big data needs to be exchanged with each other.

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

Abstract

Procédé pour la mise en œuvre d'une commutation directe vers un mode de communication de dispositif à dispositif (D2D), un appareil de réseau et un équipement D'utilisateur, qui raccourcissent le temps de communication et permettent D'économiser des ressources réseau. Un côté réseau exécute les étapes suivantes : le côté réseau acquiert des informations de localisation concernant un équipement utilisateur courant et des informations de localisation concernant un objet D2D de l'équipement utilisateur actuel 110) ; et lorsque le côté réseau estime que l'équipement utilisateur actuel est capable D'établir une communication directe avec l'objet D2D en fonction des informations de localisation acquises, il en informe l'équipement utilisateur actuel (120). L'équipement utilisateur exécute les étapes suivantes : l'équipement utilisateur signale une liste d'objets D2D au côté réseau (210) ; et après que l'équipement utilisateur ait reçu une notification, envoyée par le côté réseau et indiquant que l'équipement utilisateur est capable d'établir une communication directe avec l'objet D2D, confirmer s'il faut établir la communication directe (220) ou non. Un appareil côté réseau comprend un module d'acquisition d'informations de localisation, un module de d'estimation et un module de notification. L'équipement utilisateur comprend un module de rapport, un module de réception et un module de confirmation. Lorsque deux pièces d'un équipement utilisateur sont très proches l'une de l'autre, une communication directe entre les deux pièces d'un équipement utilisateur peut être établie, ce qui permet d'économiser le temps d'interaction avec une couche supérieure et d'économiser fortement les ressources du réseau.
PCT/CN2012/076062 2012-04-06 2012-05-25 Procédé de réalisation d'une commutation vers un mode de communication dispositif-à-dispositif, appareil de réseau et équipement utilisateur Ceased WO2013149428A1 (fr)

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CN201210099850.2 2012-04-06
CN201210099850.2A CN103369604B (zh) 2012-04-06 2012-04-06 一种实现切换到设备间通信模式的方法、网络装置和终端

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CN110267359B (zh) * 2019-06-25 2021-01-08 江西省高速公路联网管理中心 一种资源分配方法、路侧单元及存储介质
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CN103369604A (zh) 2013-10-23

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