WO2013091300A1 - 一种邻近设备通信的方法和系统、网络侧设备和用户设备 - Google Patents

一种邻近设备通信的方法和系统、网络侧设备和用户设备 Download PDF

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Publication number
WO2013091300A1
WO2013091300A1 PCT/CN2012/071351 CN2012071351W WO2013091300A1 WO 2013091300 A1 WO2013091300 A1 WO 2013091300A1 CN 2012071351 W CN2012071351 W CN 2012071351W WO 2013091300 A1 WO2013091300 A1 WO 2013091300A1
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WO
WIPO (PCT)
Prior art keywords
communication
user equipment
network side
side device
network
Prior art date
Application number
PCT/CN2012/071351
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English (en)
French (fr)
Inventor
许辉
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US14/366,348 priority Critical patent/US9549428B2/en
Priority to EP12860170.5A priority patent/EP2806673B1/en
Publication of WO2013091300A1 publication Critical patent/WO2013091300A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2603—Arrangements for wireless physical layer control
    • H04B7/2606—Arrangements for base station coverage control, e.g. by using relays in tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • 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 the field of mobile communications technologies, and in particular, to a method and system for communicating with neighboring devices, a network side device, and a user equipment. Background technique
  • Machine to Machine refers to all the techniques and means of establishing a connection between machines.
  • the M2M concept emerged in the 1990s, but only stayed at the theoretical stage.
  • M2M business appeared on the market and developed rapidly in the following years, becoming the focus of many communication equipment vendors and telecom operators.
  • the telecommunications market is becoming increasingly fierce, tariffs are declining, operators' profit margins are decreasing, and the people-based communications market is becoming saturated.
  • M2M is a new development opportunity for operators.
  • the existing mobile communication networks are mainly designed for communication between people, and the communication between machines and machines, people and machines is insufficiently optimized.
  • how operators can provide M2M communication services at low cost is also the key to the successful deployment of M2M communication.
  • MTC Machine Type Communication
  • H2H Human to Human
  • MTC Machine to Machine and Machine
  • QoS quality of service
  • D2D communication refers to direct communication between adjacent devices, such as Bluetooth. Due to lack of network management, D2D communication generally uses an unlicensed spectrum, such as 2.4 GHz. With the rapid spread of smartphones, many new applications have emerged, such as location-based applications, social applications, and so on. In a mobile communication network, communication between user equipments must be performed through the network, as shown in Figure 1, even if the two devices are located in close proximity; this is because the network operator needs to control the licensed spectrum when the two parties use the authorization. When the spectrum communicates, it must pass through the network to realize resource scheduling, billing, and management of communication activities. In order to reduce the network load, the idea of direct communication between neighboring devices is proposed, as shown in Fig. 2. In MTC, there is also a need for direct communication between MTC devices. For example, in a capillary network, communication between MTC devices and between MTC devices and gateways is required. Currently, 3GPP has begun research on D2D communication.
  • the main object of the present invention is to provide a method and system for communication between neighboring devices, a network side device, and a user device to solve the problem of direct communication of adjacent devices.
  • the present invention provides a method for communication between neighboring devices, the method comprising: The network side device determines whether the user equipment meets the device to device D2D communication condition; if it is determined that the D2D communication condition is met, the network side device notifies the user equipment, and performs direct D2D communication for the user equipment configuration according to the user equipment requirement.
  • the network side device configures, for the user equipment, a resource for network communication according to the user equipment requirement.
  • the method further includes:
  • the network side device determines whether the communication condition is met by the intermediate node, and if yes, the network side device configures the D2D communication path that includes the intermediate node for the user equipment; if not, the network side device is The user equipment configures resources for network communication.
  • the D2D communication condition is that the communication user equipment spacing belongs to a neighboring area of direct D2D communication, and the communication user equipment has D2D communication capability.
  • the communication condition through the intermediate node is: the user equipment spacing of the communication exceeds the adjacent area of the direct D2D communication, the user equipment of the communication has the D2D communication capability, and the intermediate node having the relay communication capability is found to provide the communication relay for the user equipment. .
  • the user equipment requirements include:
  • the user equipment initiates a communication request
  • the user equipment sends a D2D confirmation indication message to the network side device.
  • the method further includes:
  • the network side device selects to switch between direct D2D communication and network communication according to the user equipment spacing.
  • the method further includes:
  • the network side device selects to switch between direct D2D communication, D2D communication including intermediate nodes, and network communication according to the user equipment spacing.
  • the invention also provides a system for communication between adjacent devices, the system comprising: a network side device And user equipment,
  • the network side device is configured to determine whether the user equipment meets the device to device D2D communication condition; if it is determined that the D2D communication condition is met, notify the user equipment, and perform direct D2D communication for the user equipment configuration according to the user equipment requirement.
  • the resource is configured to perform network communication for the user equipment according to the user equipment requirement; and the user equipment is configured to perform communication by using the resource configured by the network side device.
  • the system further includes: an intermediate node;
  • the network side device is further configured to: after determining that the D2D communication condition is not met, determine whether the communication condition by the intermediate node is satisfied, and if yes, the network side device configures the D2D communication path that includes the intermediate node for the user equipment; If not satisfied, the network side device configures, for the user equipment, a resource for network communication;
  • the intermediate node is configured to provide a data relay service for a user equipment that performs D2D communication through the intermediate node.
  • the D2D communication condition is that the communication user equipment spacing belongs to a neighboring area of direct D2D communication, and the communication user equipment has D2D communication capability.
  • the communication condition through the intermediate node is: the user equipment spacing of the communication exceeds the adjacent area of the direct D2D communication, the user equipment of the communication has the D2D communication capability, and the intermediate node having the relay communication capability is found to provide the communication relay for the user equipment. .
  • the user equipment requirements include:
  • the user equipment initiates a communication request
  • the user equipment sends a D2D confirmation indication message to the network side device.
  • the network side device is further used for
  • switching between direct D2D communication and network communication is selected according to the user equipment spacing.
  • the network side device is further used,
  • D2D communication including intermediate nodes, and network communication.
  • the present invention further provides a network side device, including: a determining module and a resource configuration module, wherein the determining module is configured to determine whether the user equipment satisfies the device to device D2D communication condition, and notifies the resource configuration module of the determination result. ;
  • the resource configuration module is configured to notify the user equipment when the D2D communication condition is met according to the judgment result of the determining module, and configure a resource for performing direct D2D communication for the user equipment according to the user equipment requirement;
  • the user equipment is configured with resources for network communication according to user equipment requirements.
  • the determining module is further configured to: after determining that the D2D communication condition is not met, determine whether the communication condition of the intermediate node is met, and notify the resource configuration module of the determination result; and correspondingly, the resource configuration module is further configured to: And configuring, by the determining module, the D2D communication path that includes the intermediate node for the user equipment, and configuring, for the user equipment, when the determining module determines that the communication condition through the intermediate node is not satisfied. Resources for network communication.
  • the D2D communication condition is that the communication user equipment spacing belongs to a neighboring area of direct D2D communication, and the communication user equipment has D2D communication capability.
  • the communication condition through the intermediate node is: the user equipment spacing of the communication exceeds the adjacent area of the direct D2D communication, the user equipment of the communication has the D2D communication capability, and the intermediate node having the relay communication capability is found to provide the communication relay for the user equipment. .
  • the network device further includes: a communication switching module, configured to switch between direct D2D communication and network communication according to the user equipment spacing during communication of the user equipment.
  • the network device further includes: a communication switching module, configured to communicate with the user equipment In the process of signaling, switching between direct D2D communication, D2D communication including intermediate nodes, and network communication is selected according to the user equipment spacing.
  • a communication switching module configured to communicate with the user equipment In the process of signaling, switching between direct D2D communication, D2D communication including intermediate nodes, and network communication is selected according to the user equipment spacing.
  • the present invention further provides a user equipment, including: a sending module and a receiving module, where the sending module is configured to send the subscription data supporting the D2D communication to the network side device, and send the communication data by using the resource configured by the network side device;
  • the receiving module is configured to receive communication data by using the resource configured by the network side device; the resource configured by the network side device is: a resource for performing direct D2D communication, or a D2D communication path including an intermediate node, or performing network communication resource of.
  • the receiving module is further configured to: receive a neighboring area notification message from the network side device;
  • the sending module is further configured to: after the receiving module receives the neighboring area notification message, send the D2D confirmation indication message to the network side device.
  • the method and system for communication of neighboring devices, the network side device and the user equipment provided by the invention can realize D2D communication of neighboring devices, reduce network load, and reduce dependence of D2D communication on the network.
  • FIG. 1 is a schematic diagram of network communication in the prior art
  • Figure 2 is a schematic diagram of the D2D communication
  • FIG. 3 is a flow chart of a method for communication of a neighboring device according to the present invention.
  • FIG. 4 is a flowchart of a method for implementing device communication in a scenario of performing D2D communication in a neighboring area of direct D2D communication according to an embodiment of the present invention
  • FIG. 5 is a flowchart of a method for implementing device communication in a D2D communication scenario through a relay node according to Embodiment 2 of the present invention
  • FIG. 6 is a flowchart of a method for implementing device communication in a scenario of D2D communication and network communication switching according to Embodiment 3 of the present invention
  • 7 is a schematic structural diagram of a system for communication of a neighboring device according to the present invention
  • FIG. 8 is a schematic structural diagram of a network side device according to the present invention.
  • FIG. 9 is a schematic structural diagram of a user equipment according to the present invention. detailed description
  • the method for the communication of the neighboring device provided by the present invention includes: determining, by the network side device, whether the user equipment satisfies the D2D communication condition; if it is determined that the D2D communication condition is met, the network side device notifies the user equipment, and the user equipment is the user equipment according to the user equipment requirement.
  • the resource for direct D2D communication is configured. If it is determined that the D2D communication condition is not met, the network side device configures a resource for network communication for the user equipment according to the requirements of the user equipment.
  • the method for communicating with another neighboring device includes: determining, by the network side device, whether the user equipment satisfies the D2D communication condition; if it is determined that the D2D communication condition is met, the network side device notifies the user equipment, and performs direct D2D for the user equipment configuration according to the user equipment requirement. If it is determined that the D2D communication condition is not satisfied, it is determined whether the communication condition through the intermediate node is satisfied. If yes, the network side device configures the D2D communication path including the intermediate node for the user equipment. If not, the network side device is The user equipment configures resources for network communication.
  • the D2D communication condition is: the user equipment spacing of the communication belongs to the neighboring area of the direct D2D communication, and the communication user equipment has the D2D communication capability.
  • the communication condition through the intermediate node is: the user equipment spacing of the communication exceeds the adjacent area of the direct D2D communication, the communication user equipment has the D2D communication capability, and the intermediate node having the relay communication capability is found to provide the communication relay for the user equipment.
  • User equipment requirements include:
  • the user equipment initiates a communication request
  • the network side device After the network side device notifies the user equipment, when the user equipment selects to start D2D communication, the user equipment sends a D2D confirmation indication message to the network side device.
  • the network side device selects to switch between direct D2D communication and network communication according to the user equipment spacing;
  • the network communication mode can be switched to the direct D2D communication; when the movement of the user equipment causes the spacing to exceed the direct D2D communication When switching to a local area, choose to switch from direct D2D communication to network communication;
  • the network communication mode can be switched to the direct D2D communication; when the user equipment moves, the spacing exceeds the direct D2D communication.
  • the device In the neighboring area, the device has D2D communication capability, and can find an intermediate node with relay communication capability to provide communication relay for the user equipment, and can choose to switch to the D2D communication mode including the intermediate node; when the communication user equipment is separated by more than In the vicinity of the direct D2D communication, and the intermediate node having the relay communication capability cannot be found to provide the communication relay for the user equipment, the handover to the network communication mode is selected.
  • a method for communication between neighboring devices in the embodiment of the present invention is as shown in FIG. 3, and mainly includes the following steps:
  • Step 301 The network side device determines whether the user equipment can perform D2D communication. If yes, go to step 302; otherwise, go to step 303.
  • the network side device detects that the user equipment that needs to communicate is located in the neighboring area of the D2D communication, or the network side device detects that the user equipment exists in the neighboring area of the D2D communication, and the network side device actively determines whether the D2D communication can be performed, that is, the user equipment is determined. Whether the D2D communication condition is satisfied.
  • the network side device judges when the user equipment spacing of the communication and the user equipment capability of the communication Whether the D2D communication condition is satisfied before, that is, whether the user equipment spacing satisfying the communication belongs to the adjacent area of the direct D2D communication, and the communication user equipment has the D2D communication capability. If the user equipment spacing of the communication belongs to the adjacent area of the direct D2D communication, and the user equipment of the communication has the D2D communication capability, it is judged that the D2D communication condition is currently satisfied, and the direct D2D communication can be performed; otherwise, the direct D2D communication cannot be performed.
  • the adjacent area of the above direct D2D communication is preset, as can be specified by OAM (Operation Administration and Maintenance) or ten.
  • the D2D communication capability can be obtained by the network side device in the subscription data of the user equipment or the Universal Subscriber Identity Module (USIM).
  • USIM Universal Subscriber Identity Module
  • Step 302 The network side device notifies the user equipment (that is, sends a neighboring area notification message to the user equipment), and configures a resource for direct D2D communication for the user equipment according to the user equipment requirement, and the user equipment uses the resource to perform direct D2D communication, and the communication is performed. End the process when you are done.
  • the neighboring area notification message is: when there are other user equipments in the neighboring area of the user equipment, and the network side equipment detects that there are more than two user equipments in the neighboring area, the neighboring area notification message is sent to the user equipment in the neighboring area.
  • the user equipment that has signed the D2D function can receive the above neighboring area notification message.
  • the user equipment requirement is: the user equipment initiates a communication request; or after the user equipment receives the proximity area notification message from the network side device, and selects to start D2D communication, the user equipment sends a D2D confirmation indication message to the network side device.
  • the network side device configures the radio resource of the D2D communication, allocates an IP address for both parties of the D2D communication, and performs charging and management for the D2D communication; when the D2D communication ends, the network side device releases the D2D. Communication resources.
  • the radio resources of the above D2D communication generally adopt a licensed spectrum, that is, a spectrum used by an operator.
  • the user plane communication is directly performed by the user equipment, and the control plane communication is completed through the network side, so that the network side controls the D2D communication.
  • users participating in D2D do not know that communication is being performed through D2D, and D2D communication is transparent to the user.
  • Step 303 The network side device determines whether it is currently possible to communicate through the intermediate node. If yes, go to step 304; otherwise, go to step 305.
  • the network side device continues to determine whether the communication condition through the intermediate node is currently satisfied according to the communication user equipment spacing and the communication user equipment capability, and the communication condition through the intermediate node is: the communication user equipment spacing exceeds the direct D2D communication proximity area, and the communication
  • the user equipment has D2D communication capability, and finds an intermediate node with relay communication capability to provide communication relay for the user equipment.
  • the intermediate node can be a user equipment or an eNB.
  • the D2D communication may be performed by other user equipments or eNBs in the middle, that is, step 304 is performed; if the user equipment of the D2D communication cannot communicate through the eNB or other intermediate nodes, Step 305 is performed by communicating over the network.
  • the intermediate node requires the capability of relay communication, and the network side device determines whether the intermediate node has the relay communication capability through the subscription data.
  • Step 304 The network side device configures a D2D communication path including the intermediate node for the user equipment, and the user equipment performs D2D communication through the path, and the process ends after the communication is completed.
  • the service data of the source user equipment is forwarded to the target user equipment through the intermediate node; the network side selects an appropriate intermediate node to implement D2D relay communication according to the comprehensive factors such as the location and load of the intermediate node; the intermediate node transparently forwards the service data, that is, incorrectly The data content is processed, and only the data is forwarded to the target user equipment.
  • the intermediate node is transparent to the D2D user, ie the D2D user does not know the existence of the intermediate node.
  • the network side device releases the D2D communication resource, including the resources of the intermediate node.
  • Step 305 The network side device configures a resource for network communication for the user equipment according to the requirement of the user equipment, and the user equipment uses the resource to perform network communication. Normal network communication is shown in Figure 1. As shown, it will not be described here.
  • Embodiment 1 of the present invention is directed to a scenario of performing D2D communication in a neighboring area of direct D2D communication.
  • the method for implementing device communication is as shown in FIG. 4, and mainly includes:
  • Step 401 The network side device determines that D2D communication is currently available, and the network side device notifies the user equipment.
  • Step 402 The network side device configures the D2D communication resource to start D2D communication.
  • the D2D communication needs to meet two conditions: 1.
  • the user equipment of the communication has the capability of D2D communication; 2.
  • the user equipment spacing of the communication belongs to the adjacent area of the direct D2D communication.
  • the network side device determines whether the user equipment has the D2D communication capability by querying the subscription data, for example, the network side device queries the home subscriber server (HSS, Home Subscriber Server)/Home Location Register (HLR, Home Location Register) for the subscription of the user equipment. data.
  • HSS home Subscriber server
  • HLR Home Location Register
  • the network side device determines that the user equipment meets the D2D communication condition, the network side device configures the D2D communication resource, where the communication resource includes: a physical layer frequency, a time slot, a modulation and coding, an antenna port, an upper layer IP address, and a transmission control protocol ( TCP, Transmission Control Protocol) / User Datagram Protocol (UDP) port, etc.
  • TCP Transmission Control Protocol
  • UDP User Datagram Protocol
  • the D2D communication resources are configured, and the user equipment can use the configured resources for direct D2D communication; the network side device monitors the D2D communication to ensure communication quality and charge for communication.
  • the D2D communication mode can be transparent to the user, that is, the user does not know that D2D communication is being performed. Step 403, D2D communication ends.
  • the D2D communication is ended.
  • Step 404 The network side device releases the D2D communication resource, and the D2D communication ends.
  • Embodiment 2 of the present invention is directed to a D2D communication scenario through a relay node, and a method for implementing device communication is shown in FIG. 5, which mainly includes:
  • Step 501 The network side device determines whether D2D communication can be performed. If yes, step 502 is performed; otherwise, step 503 is performed.
  • the network side device may select the intermediate node for D2D communication, that is, perform step 503.
  • Step 502 The network side device notifies the user equipment, configures resources for direct D2D communication, and starts D2D communication.
  • This step is the same as step 302 and will not be described here.
  • Step 503 The network side device configuration includes a D2D communication path of the intermediate node, and starts D2D communication.
  • the intermediate node selected by the network side device may be: a user equipment or an eNB.
  • the intermediate node is a user equipment
  • the user equipment needs to have the capability of relaying D2D communication, and the network side device can determine whether the user equipment has the relay capability through the subscription data of the user equipment.
  • the D2D communication path contains at most one intermediate node; the user equipments communicating through the intermediate nodes are located in the same eNB coverage. If the scope of the same eNB is exceeded, the user equipment can communicate through the network.
  • the network side device configuring the communication path further includes: setting a communication resource including the intermediate node.
  • the intermediate node transparently forwards the service data between the user equipments; the intermediate node is transparent to the user, that is, the user does not know to communicate through the intermediate node.
  • step 504 communication continues until the D2D communication ends.
  • the network side device monitors the D2D communication to ensure the communication quality and charge the communication at the same time.
  • the network side device ends the D2D communication.
  • Step 505 The network side device releases the D2D communication resource, and the D2D communication ends.
  • the network side device releases the D2D communication resource, and the D2D communication ends; if the D2D communication is through the intermediate node, the released D2D communication resource includes the resource of the intermediate node.
  • the third embodiment of the present invention is directed to a scenario of D2D communication and network communication switching.
  • the method for implementing device communication is as shown in FIG. 6, which mainly includes:
  • Step 601 The user equipment is communicating through the network.
  • the user equipment communicates through the network as shown in FIG. 1, that is, a conventional network communication method.
  • Step 602 The user equipment enters a neighboring area.
  • the user equipment enters a neighboring area, and the neighboring area is a geographical area in which the user equipment can adopt D2D communication; the neighboring area is specific to the user equipment.
  • the user equipment enters the neighboring area, and the user equipment subscribes to the D2D communication, and the network side device sends a neighboring area notification message to the user equipment, where the notification message includes: a user list of the D2D communication signed in the current neighboring area, or the merchant enters the proximity Product advertisements sent by user devices in the area, and so on. If there is a user equipment entering or leaving the neighboring area, the network side device updates the notification message.
  • Step 603 The network side device establishes a D2D communication resource for the user equipment in the adjacent area, and starts D2D communication.
  • the network side device releases the communication resources originally passing through the network; the D2D communication is transparent to the user, that is, the user does not know that the communication has been switched to the D2D mode.
  • Step 604 The network side device monitors the D2D communication, determines whether the user equipment exceeds the neighboring area of the D2D communication, and if yes, performs step 605; otherwise, performs step 608.
  • Step 605 The network side device determines whether the D2D communication can be continued through the intermediate node, such as If yes, go to step 606; otherwise, go to step 607.
  • This step is the same as step 303 and will not be described here.
  • Step 606 The network side device configures a D2D communication path that includes the intermediate node for the user equipment, and the user equipment continues the D2D communication by using the intermediate node.
  • This step is the same as step 503 and will not be described here.
  • Step 607 The network side device switches the user equipment to communicate through the network.
  • the network side device switches the communication to the network communication mode.
  • step 608 communication continues until the communication ends.
  • step 504 This step is the same as step 504, and details are not described herein again.
  • Step 609 The network side device releases the communication resource, and the communication ends.
  • This step is the same as step 505, and is not described here.
  • the present invention further provides a system for communicating with neighboring devices. As shown in FIG. 7, the system includes: a network side device 10 and a user device 20.
  • the network side device 10 is configured to determine whether the user equipment 20 satisfies the D2D communication condition; if it is determined that the D2D communication condition is met, notify the user equipment 20, and configure the user equipment 20 to perform direct D2D communication resources according to the user equipment 20 requirement; If it is determined that the D2D communication condition is not satisfied, the user equipment 20 is configured with resources for network communication according to the user equipment requirements; and the user equipment 20 is configured to communicate with the resources configured by the network side device 10.
  • the system further includes an intermediate node 30,
  • the network side device 10 is further configured to: after determining that the D2D communication condition is not met, determine whether the communication condition through the intermediate node is satisfied, and if yes, the network side device 10 configures the D2D communication path including the intermediate node 30 for the user equipment 20; If satisfied, the network side device 10 configures the user equipment 20 with resources for network communication according to user equipment requirements;
  • the intermediate node 30 is used for users who perform D2D communication through the intermediate node 30.
  • Device 20 provides a data relay service.
  • the network side device 10 is further configured to: during the communication process of the user equipment 20, select to switch between direct D2D communication and network communication according to the user equipment 20 spacing; or, according to the user equipment 20 spacing, select direct D2D communication, Switching between D2D communication and network communication including intermediate nodes.
  • the network side device 10 may further include: a determining module 11 and a resource configuring module 12.
  • the determining module 11 is configured to determine whether the user equipment 20 satisfies the D2D communication condition, and notify the resource configuration module 12 of the determination result.
  • the resource configuration module 12 is configured to notify the D2D communication condition when the D2D communication condition is met according to the judgment result of the determining module 11.
  • the user equipment 20 configures the user equipment 20 with resources for direct D2D communication according to the user equipment requirements. When the D2D communication condition is not met, the user equipment 20 is configured with resources for network communication according to the user equipment requirements.
  • the judging module 11 is further configured to: after determining that the D2D communication condition is not satisfied, determine whether the communication condition through the intermediate node is satisfied, and notify the resource configuration module 12 of the determination result;
  • the resource configuration module 12 is further configured to: when the determining module 11 determines that the communication condition through the intermediate node is satisfied, configure the D2D communication path including the intermediate node 30 for the user equipment 20; and the determining module 11 determines that the communication condition through the intermediate node is not satisfied.
  • the user equipment 20 is configured with resources for network communication.
  • the network side device 10 may further include: a communication switching module 13 configured to switch between direct D2D communication and network communication according to the user equipment spacing during communication of the user equipment 20; or Switching between direct D2D communication, D2D communication with intermediate nodes, and network communication is selected based on user equipment spacing.
  • a communication switching module 13 configured to switch between direct D2D communication and network communication according to the user equipment spacing during communication of the user equipment 20; or Switching between direct D2D communication, D2D communication with intermediate nodes, and network communication is selected based on user equipment spacing.
  • the user equipment 20 may further include: a sending module 21 and a receiving module 22.
  • the sending module 21 is configured to send the subscription data supporting the D2D communication to the network side device 10, and send the communication data by using the resource configured by the network side device 10; Receiving communication data by using resources configured by the network side device 10;
  • the resources configured by the network side device are: a resource for performing direct D2D communication, or a D2D communication path including an intermediate node, or a resource for performing network communication.
  • the receiving module 22 is further configured to: receive the neighboring area notification from the network side device 10, and the sending module 21 is further configured to: after the receiving module 22 receives the neighboring area notification message, the sending module 21 sends the D2D to the network side device 10. Confirm the indication message.

Abstract

本发明公开了一种邻近设备通信的方法和系统、网络侧设备和用户设备，方法包括：网络侧设备判断用户设备是否满足设备到设备（D2D）通信条件；如果判断满足D2D通信条件，则网络侧设备通知用户设备，并根据用户设备需求为用户设备配置进行直接D2D通信的资源；如果判断不满足D2D通信条件，则网络侧设备根据用户设备需求为用户设备配置进行网络通信的资源。通过本发明，能够实现邻近设备的D2D通信，并能降低网络负载，减少D2D通信对网络的依赖。

Description

一种邻近设备通信的方法和系统、 网络侧设备和用户设备 技术领域
本发明涉及移动通信技术领域， 尤其涉及一种邻近设备通信的方法和 系统、 网络侧设备和用户设备。 背景技术
机器对机器（M2M, Machine to Machine )是指机器之间建立连接的所 有技术和手段。 M2M理念在上个世纪九十年代就出现了， 但是只停留在理 论阶段。 2000年以后， 随着移动通信技术的发展， 以移动通信技术实现机 器设备的联网成为可能。 2002年左右， M2M业务就在市场上出现， 并在随 后的几年迅速发展， 成为了众多通信设备商和电信运营商的关注焦点。 目 前电信市场竟争日趋激烈， 资费不断下降， 运营商利润空间不断减小， 以 人为基础的通信市场正在趋于饱和， M2M对运营商来说是全新的发展机 遇。
对 M2M通信应用场景的研究表明在移动网络上提供 M2M通信具有潜 在的市场前景。但 M2M业务对系统提出了很多新的要求， 为了增强移动网 络在这方面的竟争力， 有必要对现有的移动网络进行优化， 来更有效的支 持 M2M通信。
现有的移动通信网络主要针对人与人的通信进行设计， 而对机器与机 器、人与机器的通信则优化不足。此外，运营商如何能够以低成本提供 M2M 通信服务， 也是 M2M通信部署成功的关键。
基于以上情况，有必要研究移动网络支持 M2M通信的解决方案，解决 方案要最大限度重用现有网络，降低大量 M2M通信对网络造成的影响以及 运营维护的复杂度。 为了有效地利用移动网络资源， 第三代合作伙伴计划 （3GPP , 3rd Generation Partnership Project )提出了机器类型通信 ( MTC, Machine Type Communication ), 即机器^机器（ Machine to Machine )、机器 ^人 ( Machine to Man )进行通信的业务，其业务范围远远超出了以往人对人（ H2H, Human to Human )之间的通信， MTC在接入控制、计费、安全性、服务质量（QoS, Quality of Service ),业务模式等方面与现有的 H2H通信模式有很大的区别。
设备到设备（ D2D, Device to Device )通信是指邻近的设备间直接通信， 如蓝牙； 由于缺少网络管控， D2D通信一般采用非授权频谱， 如 2.4GHz。 随着智能手机的快速普及， 出现了很多新的应用， 如基于位置应用、 社交 应用等等。 在移动通信网络中， 用户设备之间的通信必须通过网络进行， 如图 1 所示， 即使两个设备位于邻近的位置； 这是因为网络运营商需要对 授权频谱进行管控， 当通信双方使用授权频谱进行通信时， 必须通过网络， 以实现网络对通信活动的资源调度、 计费和管理等。 为了降低网络负载， 目前提出了邻近设备直接通信的设想， 如图 2所示。 在 MTC 中， 也存在 MTC设备间直接通信的需求， 如毛细网络中， MTC设备之间以及 MTC设 备与网关之间需要进行通信， 目前 3GPP也开始对 D2D通信进行研究。
在对现有技术的研究和实践过程中， 发明人发现现有技术存在以下问 题： 是否采用 D2D 通信应该由谁来决定； 网络如何控制采用授权频谱的 D2D通信； D2D通信的设备间距离超过直接通信范围该如何处理等等。 现 有技术还没有提出针对上述问题的解决方案。 发明内容
有鉴于此， 本发明的主要目的在于提供一种邻近设备通信的方法和系 统、 网络侧设备和用户设备， 以解决邻近设备直接通信的问题。
为达到上述目的， 本发明的技术方案是这样实现的：
本发明提供了一种邻近设备通信的方法， 该方法包括： 网络侧设备判断用户设备是否满足设备到设备 D2D通信条件； 如果判断满足 D2D通信条件 , 则所述网络侧设备通知所述用户设备， 并根据用户设备需求为所述用户设备配置进行直接 D2D通信的资源；
如果判断不满足 D2D通信条件， 则所述网络侧设备根据用户设备需求 为所述用户设备配置进行网络通信的资源。
在判断不满足 D2D通信条件后， 该方法进一步包括：
所述网络侧设备判断是否满足通过中间节点通信条件， 如果满足， 则 所述网络侧设备为所述用户设备配置包含中间节点的 D2D通信路径； 如果 不满足， 则所述网络侧设备为所述用户设备配置进行网络通信的资源。
所述 D2D通信条件为：通信的用户设备间距属于直接 D2D通信的邻近 区域， 且通信的用户设备具备 D2D通信能力。
所述通过中间节点通信条件为： 通信的用户设备间距超出直接 D2D通 信的邻近区域， 通信的用户设备具备 D2D通信能力， 且找到具有中继通信 能力的中间节点为所述用户设备提供通信中继。
所述用户设备需求包括：
所述用户设备发起通信请求；
或者， 所述网络侧设备通知用户设备后， 所述用户设备选择开始 D2D 通信时， 所述用户设备向网络侧设备发送 D2D确认指示消息。
该方法进一步包括：
网络侧设备在用户设备的通信过程中， 根据所述用户设备间距， 选择 在直接 D2D通信和网络通信之间进行切换。
该方法进一步包括：
网络侧设备在用户设备的通信过程中， 根据所述用户设备间距， 选择 在直接 D2D通信、 包含中间节点的 D2D通信和网络通信之间进行切换。
本发明还提供了一种邻近设备通信的系统， 该系统包括： 网络侧设备 和用户设备，
所述网络侧设备， 用于判断用户设备是否满足设备到设备 D2D通信条 件； 如果判断满足 D2D通信条件， 则通知所述用户设备， 并根据用户设备 需求为所述用户设备配置进行直接 D2D通信的资源；如果判断不满足 D2D 通信条件， 则根据用户设备需求为所述用户设备配置进行网络通信的资源； 所述用户设备， 用于利用所述网络侧设备配置的资源进行通信。
该系统进一步包括： 中间节点；
所述网络侧设备进一步用于， 在判断不满足 D2D通信条件后， 判断是 否满足通过中间节点通信条件， 如果满足， 则所述网络侧设备为所述用户 设备配置包含中间节点的 D2D通信路径； 如果不满足， 则所述网络侧设备 为所述用户设备配置进行网络通信的资源；
相应的， 所述中间节点用于， 为通过中间节点进行 D2D通信的用户设 备提供数据中继服务。
所述 D2D通信条件为：通信的用户设备间距属于直接 D2D通信的邻近 区域， 且通信的用户设备具备 D2D通信能力。
所述通过中间节点通信条件为： 通信的用户设备间距超出直接 D2D通 信的邻近区域， 通信的用户设备具备 D2D通信能力， 且找到具有中继通信 能力的中间节点为所述用户设备提供通信中继。
所述用户设备需求包括：
所述用户设备发起通信请求；
或者， 所述网络侧设备通知用户设备后， 所述用户设备选择开始 D2D 通信时， 所述用户设备向网络侧设备发送 D2D确认指示消息。
所述网络侧设备进一步用于 ,
在所述用户设备的通信过程中， 根据所述用户设备间距， 选择在直接 D2D通信和网络通信之间进行切换。 所述网络侧设备进一步用于，
在所述用户设备的通信过程中， 根据所述用户设备间距， 选择在直接
D2D通信、 包含中间节点的 D2D通信和网络通信之间进行切换。
本发明还提供了一种网络侧设备， 包括： 判断模块和资源配置模块， 所述判断模块，用于判断用户设备是否满足设备到设备 D2D通信条件， 并将判断结果通知给所述资源配置模块；
所述资源配置模块， 用于根据所述判断模块的判断结果， 在满足 D2D 通信条件时， 通知所述用户设备， 并根据用户设备需求为所述用户设备配 置进行直接 D2D通信的资源；在不满足 D2D通信条件时，根据用户设备需 求为所述用户设备配置进行网络通信的资源。
所述判断模块进一步用于， 在判断不满足 D2D通信条件后， 判断是否 满足通过中间节点通信条件， 并将判断结果通知给所述资源配置模块； 相应的， 所述资源配置模块进一步用于， 在所述判断模块判断满足通 过中间节点通信条件时， 为所述用户设备配置包含中间节点的 D2D通信路 径； 在所述判断模块判断不满足通过中间节点通信条件时， 为所述用户设 备配置进行网络通信的资源。
所述 D2D通信条件为：通信的用户设备间距属于直接 D2D通信的邻近 区域， 且通信的用户设备具备 D2D通信能力。
所述通过中间节点通信条件为： 通信的用户设备间距超出直接 D2D通 信的邻近区域， 通信的用户设备具备 D2D通信能力， 且找到具有中继通信 能力的中间节点为所述用户设备提供通信中继。
所述网络设备进一步包括： 通信切换模块， 用于在所述用户设备的通 信过程中， 根据所述用户设备间距， 选择在直接 D2D通信和网络通信之间 进行切换。
所述网络设备进一步包括： 通信切换模块， 用于在所述用户设备的通 信过程中， 根据所述用户设备间距， 选择在直接 D2D通信、 包含中间节点 的 D2D通信和网络通信之间进行切换。
本发明还提供了一种用户设备， 包括： 发送模块和接收模块， 所述发送模块， 用于向网络侧设备发送支持 D2D通信的签约数据， 利 用所述网络侧设备配置的资源发送通信数据；
所述接收模块， 用于利用所述网络侧设备配置的资源接收通信数据； 所述网络侧设备配置的资源为： 进行直接 D2D通信的资源、 或包含中 间节点的 D2D通信路径、 或进行网络通信的资源。
所述接收模块进一步用于， 接收来自所述网络侧设备的邻近区域通知 消息；
相应的， 所述发送模块进一步用于， 在所述接收模块收到邻近区域通 知消息后， 向网络侧设备发送 D2D确认指示消息。
本发明所提供的一种邻近设备通信的方法和系统、 网络侧设备和用户 设备， 能够实现邻近设备的 D2D通信， 并能降低网络负载， 减少 D2D通信 对网络的依赖。 附图说明
图 1为现有技术中网络通信的示意图；
图 2为 D2D通信的设想示意图；
图 3为本发明的一种邻近设备通信的方法流程图；
图 4为本发明实施例一针对在直接 D2D通信的邻近区域内进行 D2D 通信的场景下， 实现设备通信的方法流程图；
图 5为本发明实施例二的针对通过中继节点的 D2D通信场景下， 实现 设备通信的方法流程图；
图 6为本发明实施例三的针对 D2D通信和网络通信切换的场景下， 实 现设备通信的方法流程图； 图 7为本发明的一种邻近设备通信的系统结构示意图；
图 8为本发明的一种网络侧设备的结构示意图；
图 9为本发明的一种用户设备的结构示意图。 具体实施方式
下面结合附图和具体实施例对本发明的技术方案进一步详细阐述。 本发明所提供的一种邻近设备通信的方法， 包括： 网络侧设备判断用 户设备是否满足 D2D通信条件；如果判断满足 D2D通信条件，则网络侧设 备通知用户设备， 并根据用户设备需求为用户设备配置进行直接 D2D通信 的资源； 如果判断不满足 D2D通信条件， 则根据用户设备需求， 网络侧设 备为用户设备配置进行网络通信的资源。
另一种邻近设备通信的方法， 包括： 网络侧设备判断用户设备是否满 足 D2D通信条件；如果判断满足 D2D通信条件，则网络侧设备通知用户设 备， 并根据用户设备需求为用户设备配置进行直接 D2D通信的资源； 如果 判断不满足 D2D通信条件， 则判断是否满足通过中间节点通信条件， 如果 满足， 则网络侧设备为用户设备配置包含中间节点的 D2D通信路径， 如果 不满足， 则网络侧设备为用户设备配置进行网络通信的资源。
其中， D2D通信条件为： 通信的用户设备间距属于直接 D2D通信的邻 近区域， 且通信的用户设备具备 D2D通信能力。
通过中间节点通信条件为： 通信的用户设备间距超出直接 D2D通信的 邻近区域， 通信的用户设备具备 D2D通信能力， 且找到具有中继通信能力 的中间节点为用户设备提供通信中继。
用户设备需求包括：
用户设备发起通信请求；
或者， 网络侧设备通知用户设备后， 用户设备选择开始 D2D通信时， 用户设备向网络侧设备发送 D2D确认指示消息。 另外， 网络侧设备在用户设备的通信过程中， 根据用户设备间距， 选 择在直接 D2D通信和网络通信之间进行切换；
或者， 根据用户设备间距， 选择在直接 D2D 通信、 包含中间节点的 D2D通信和网络通信之间进行切换。切换的判断依据依然是上述的 D2D通 信条件、 通过中间节点通信条件。
例如： 在通信的用户设备的间距属于直接 D2D通信的邻近区域、 且都 具备 D2D通信能力时，可以选择从网络通信方式切换到直接 D2D通信； 当 用户设备的移动导致间距超出了直接 D2D通信的邻近区域时， 选择从直接 D2D通信切换到网络通信方式；
或者， 在通信的用户设备的间距属于直接 D2D通信的邻近区域、 且都 具备 D2D通信能力时，可以选择从网络通信方式切换到直接 D2D通信； 当 用户设备的移动导致间距超出了直接 D2D 通信的邻近区域， 设备都具备 D2D通信能力， 且能够找到具有中继通信能力的中间节点为用户设备提供 通信中继时， 可以选择切换到包含中间节点的 D2D通信方式； 当通信的用 户设备的间距超出直接 D2D通信的邻近区域， 且不能找到具有中继通信能 力的中间节点为用户设备提供通信中继时， 选择切换到网络通信方式。
本发明实施例的一种邻近设备通信的方法如图 3 所示， 主要包括以下 步驟：
步驟 301 , 网络侧设备判断用户设备是否可以进行 D2D通信， 如果是， 执行步驟 302; 否则， 执行步驟 303。
网络侧设备检测到需要通信的用户设备位于 D2D通信的邻近区域， 或 者网络侧设备检测到在 D2D通信的邻近区域中存在用户设备， 则网络侧设 备主动判断是否可以进行 D2D通信、即判断用户设备是否满足 D2D通信条 件。
网络侧设备根据通信的用户设备间距和通信的用户设备能力， 判断当 前是否满足 D2D通信条件， 即判断是否满足通信的用户设备间距属于直接 D2D通信的邻近区域， 且通信的用户设备具备 D2D通信能力。 如果通信的 用户设备间距属于直接 D2D通信的邻近区域，且通信的用户设备具备 D2D 通信能力，则判断当前满足 D2D通信条件，可以进行直接 D2D通信；否贝' J , 不能进行直接 D2D通信。
上述直接 D2D 通信的邻近区域为预先设定的， 如可以通过 OAM ( Operation Administration and Maintenance )或十办议规定。 D2D通信能力保 存在用户设备的签约数据或全球用户识别卡（USIM, Universal Subscriber Identity Module ) 中， 能够被网络侧设备获取到。
步驟 302, 网络侧设备通知用户设备 (即向用户设备发送邻近区域通知 消息）， 并根据用户设备需求， 为用户设备配置进行直接 D2D通信的资源， 用户设备利用所述资源进行直接 D2D通信， 通信完毕后结束流程。
邻近区域通知消息是指： 在用户设备的邻近区域存在其他用户设备， 网络侧设备检测到在邻近区域存在两个以上的用户设备， 则向邻近区域内 的用户设备发送邻近区域通知消息。 通常的， 签约了 D2D功能的用户设备 可以收到上述邻近区域通知消息。
用户设备需求是指： 用户设备发起通信请求； 或者用户设备收到来自 网络侧设备的邻近区域通知消息后， 选择开始 D2D通信时， 用户设备向网 络侧设备发送 D2D确认指示消息。
如果用户设备选择开始 D2D通信，则网络侧设备配置 D2D通信的无线 资源， 为 D2D通信的双方分配 IP地址， 并对 D2D通信进行计费和管理； 当 D2D通信结束时， 网络侧设备释放 D2D的通信资源。 上述 D2D通信的 无线资源一般采用授权频谱， 即运营商使用的频谱。 D2D通信中， 用户面 通信通过用户设备直接进行， 控制面通信通过网络侧完成， 以实现网络侧 对 D2D通信的管控。 另外， 参与 D2D的用户并不知道通过 D2D在进行通信， D2D通信对 用户是透明的。
步驟 303 , 网络侧设备判断当前是否可以通过中间节点通信， 如果是， 执行步驟 304; 否则， 执行步驟 305。
网络侧设备根据通信的用户设备间距和通信的用户设备能力， 继续判 断当前是否满足通过中间节点通信条件， 所述通过中间节点通信条件为： 通信的用户设备间距超出直接 D2D通信的邻近区域， 通信的用户设备具备 D2D通信能力， 且找到具有中继通信能力的中间节点为用户设备提供通信 中继。 中间节点可以是用户设备或 eNB。
参与 D2D通信的用户设备位于相同的 eNB范围内，则可以通过中间的 其他用户设备或 eNB中继进行 D2D通信、 即执行步驟 304; 如果 D2D通 信的用户设备不能通过 eNB或其他中间节点通信， 则采用通过网络通信、 即执行步驟 305。 中间节点要求具有中继通信的能力， 网络侧设备通过签约 数据确定中间节点是否具有中继通信能力。
步驟 304 ,网络侧设备为用户设备配置包含中间节点的 D2D通信路径， 用户设备通过所述路径进行 D2D通信， 通信完毕后结束流程。
源用户设备的业务数据经过中间节点被转发到目标用户设备； 网络侧 根据中间节点的位置、 负载等综合因素， 选择合适的中间节点实现 D2D中 继通信； 中间节点对业务数据透明转发， 即不对数据内容进行处理， 只是 转发数据到目标用户设备。 中间节点对 D2D的用户是透明的， 即 D2D用户 不知道中间节点的存在。
当所述 D2D通信结束， 如用户设备发送结束通信请求给网络侧设备， 网络侧设备释放 D2D通信资源， 包括中间节点的资源。
步驟 305 ,根据用户设备需求， 网络侧设备为用户设备配置进行网络通 信的资源， 用户设备利用所述资源进行网络通信。 正常的网络通信如图 1 所示， 此处不再赘述。
下面再结合具体实施例对上述邻近设备通信的方法进一步详细阐述。 本发明的实施例一针对在直接 D2D通信的邻近区域内进行 D2D通信的 场景， 实现设备通信的方法如图 4所示， 主要包括：
步驟 401 , 网络侧设备判断当前可以进行 D2D通信， 网络侧设备通知 用户设备。
步驟 402, 网络侧设备配置 D2D通信资源， 开始 D2D通信。
D2D通信需要满足两个条件： 1、 通信的用户设备具有 D2D通信的能 力； 2、 通信的用户设备间距属于直接 D2D通信的邻近区域内。 其中， 网 络侧设备通过查询签约数据判断用户设备是否具有 D2D通信能力， 如： 网 络侧设备向归属用户服务器（HSS, Home Subscriber Server ) /归属位置寄 存器（HLR, Home Location Register )查询用户设备的签约数据。
如果网络侧设备确定用户设备满足 D2D通信条件 , 则网络侧设备配置 D2D通信资源， 所述通信资源包括： 物理层的频率、 时隙、 调制编码、 天 线端口、上层的 IP地址、传输控制协议（ TCP, Transmission Control Protocol ) /用户数据包协议 ( UDP, User Datagram Protocol )端口等等。
配置好了 D2D通信资源，用户设备可以利用配置的资源进行直接 D2D 通信； 网络侧设备对 D2D通信进行监控， 以保证通信质量， 同时对通信计 费。
D2D通信方式对用户可以是透明的， 即用户不知道在进行 D2D通信。 步驟 403 , D2D通信结束。
当 D2D通信完成或者由于其他原因（如：有高优先级或紧急呼叫到来） 或者超出了 D2D通信距离， 则结束 D2D通信。
步驟 404, 网络侧设备释放 D2D通信资源， D2D通信结束。
网络侧设备释放 D2D通信资源， 相应的 D2D通信结束。 如果通信未完成， 网络侧设备可以切换到网络通信方式继续进行通信。 本发明的实施例二针对通过中继节点的 D2D通信场景， 实现设备通信 的方法如图 5所示， 主要包括：
步驟 501 , 网络侧设备判断是否可以进行 D2D通信， 如果是， 执行步 驟 502; 否则， 执行步驟 503。
如果网络侧设备确定用户设备具有 D2D通信能力，但超过了直接 D2D 通信的邻近区域， 网络侧设备可以选择中间节点进行 D2D通信、 即执行步 驟 503。
步驟 502, 网络侧设备通知用户设备， 配置直接 D2D通信的资源， 开 始 D2D通信。
本步驟与步驟 302相同， 此处不再赘述。
步驟 503 , 网络侧设备配置包含中间节点的 D2D通信路径， 开始 D2D 通信。
网络侧设备选择的中间节点可以为： 用户设备或 eNB。
如果中间节点为用户设备， 则该用户设备需要具有中继 D2D通信的能 力， 网络侧设备通过用户设备的签约数据可以确定该用户设备是否具有中 继能力。
D2D通信路径中最多只包含一个中间节点； 通过中间节点通信的用户 设备位于相同的 eNB覆盖范围内， 如果超出了同一个 eNB的范围， 用户设 备可以通过网络进行通信。
网络侧设备配置通信路径还包括： 设置包括中间节点的通信资源。 中间节点透明转发用户设备间的业务数据； 中间节点对于用户是透明 的， 即用户不知道通过中间节点进行通信。
步驟 504, 通信继续直到 D2D通信结束。
网络侧设备对 D2D通信进行监控，以保证通信质量， 同时对通信计费。 当通信完成或者超出 D2D通信的邻近区域或者由于其他原因， 如： 有 高优先级或紧急呼叫到来， 网络侧设备结束 D2D通信。
步驟 505 , 网络侧设备释放 D2D通信资源， D2D通信结束。
网络侧设备释放 D2D通信资源 , D2D通信结束； 如果是通过中间节点 的 D2D通信， 那么释放的 D2D通信资源中包括中间节点的资源。
如果通信未完成， 网络侧设备可以切换到网络通信方式继续进行通信。 本发明的实施例三针对 D2D通信和网络通信切换的场景， 实现设备通 信的方法如图 6所示， 主要包括：
步驟 601 , 用户设备正在通过网络通信。
用户设备通过网络通信如图 1所示， 即常规的网络通信方式。
步驟 602, 用户设备进入邻近区域。
由于移动，用户设备进入邻近区域，邻近区域为用户设备可以采用 D2D 通信的地理区域； 所述邻近区域是针对具体的用户设备。
用户设备进入邻近区域， 且该用户设备签约了 D2D通信， 则网络侧设 备向该用户设备发送邻近区域通知消息， 上述通知消息包括： 当前邻近区 域中签约 D2D通信的用户列表、 或者商家向进入邻近区域的用户设备发送 的商品广告等等。 如果有用户设备进入或离开邻近区域， 则网络侧设备更 新通知消息。
步驟 603 , 网络侧设备为邻近区域的用户设备建立 D2D通信资源， 开 始 D2D通信。
D2D通信开始之后， 网络侧设备释放原来通过网络的通信资源； D2D 通信对用户是透明的， 即用户不知道通信已切换到 D2D方式。
步驟 604, 网络侧设备监控 D2D通信， 判断用户设备是否超过 D2D通 信的邻近区域， 如果是， 执行步驟 605; 否则， 执行步驟 608。
步驟 605 , 网络侧设备判断是否可以通过中间节点继续 D2D通信， 如 果是， 执行步驟 606; 否则， 执行步驟 607。
本步驟与步驟 303相同， 此处不再赘述。
步驟 606 ,网络侧设备为用户设备配置包含中间节点的 D2D通信路径， 用户设备通过中间节点继续 D2D通信。
本步驟与步驟 503相同， 此处不再赘述。
步驟 607， 网络侧设备将用户设备切换到通过网络通信。
用户设备不能直接 D2D通信， 也不能通过中间节点通信时， 网络侧设 备将通信切换到网络通信方式。
步驟 608, 通信继续直到通信结束。
本步驟与步驟 504相同， 此处不再赘述。
步驟 609, 网络侧设备释放通信资源， 通信结束。
本步驟与步驟 505相同， 此处不再赘述。
对应上述邻近设备通信的方法， 本发明还提供了一种邻近设备通信的 系统， 如图 7所示， 包括： 网络侧设备 10和用户设备 20。
其中， 网络侧设备 10, 用于判断用户设备 20是否满足 D2D通信条件； 如果判断满足 D2D通信条件， 则通知用户设备 20, 并根据用户设备 20需 求为用户设备 20配置进行直接 D2D通信的资源； 如果判断不满足 D2D通 信条件， 则根据用户设备需求为用户设备 20配置进行网络通信的资源； 用户设备 20, 用于利用网络侧设备 10配置的资源进行通信。
较佳的， 该系统进一步包括中间节点 30,
网络侧设备 10进一步用于， 在判断不满足 D2D通信条件后， 判断是 否满足通过中间节点通信条件，如果满足， 则网络侧设备 10为用户设备 20 配置包含中间节点 30的 D2D通信路径； 如果不满足， 则根据用户设备需 求， 网络侧设备 10为用户设备 20配置进行网络通信的资源；
相应的， 中间节点 30用于， 为通过中间节点 30进行 D2D通信的用户 设备 20提供数据中继服务。
网络侧设备 10进一步用于， 在用户设备 20的通信过程中， 根据用户 设备 20间距， 选择在直接 D2D通信和网络通信之间进行切换； 或者， 根 据用户设备 20间距， 选择在直接 D2D通信、 包含中间节点的 D2D通信和 网络通信之间进行切换。
较佳的， 如图 8所示， 网络侧设备 10可进一步包括： 判断模块 11和 资源配置模块 12。 判断模块 11 , 用于判断用户设备 20是否满足 D2D通信 条件， 并将判断结果通知给资源配置模块 12; 资源配置模块 12, 用于根据 判断模块 11的判断结果， 在满足 D2D通信条件时， 通知用户设备 20, 并 根据用户设备需求为用户设备 20配置进行直接 D2D通信的资源； 在不满 足 D2D通信条件时， 根据用户设备需求， 为用户设备 20配置进行网络通 信的资源。
判断模块 11进一步用于， 在判断不满足 D2D通信条件后， 判断是否 满足通过中间节点通信条件， 并将判断结果通知给资源配置模块 12;
相应的， 资源配置模块 12进一步用于， 在判断模块 11判断满足通过 中间节点通信条件时， 为用户设备 20配置包含中间节点 30的 D2D通信路 径； 在判断模块 11 判断不满足通过中间节点通信条件时， 为用户设备 20 配置进行网络通信的资源。
网络侧设备 10还可进一步包括： 通信切换模块 13 , 连接判断模块 11 , 用于在用户设备 20 的通信过程中， 根据用户设备间距， 选择在直接 D2D 通信和网络通信之间进行切换；或者，根据用户设备间距，选择在直接 D2D 通信、 包含中间节点的 D2D通信和网络通信之间进行切换。
较佳的， 如图 9所示， 用户设备 20可进一步包括： 发送模块 21和接 收模块 22。 发送模块 21 , 用于向网络侧设备 10发送支持 D2D通信的签约 数据， 利用网络侧设备 10配置的资源发送通信数据； 接收模块 22, 用于利 用网络侧设备 10配置的资源接收通信数据；
所述网络侧设备配置的资源为： 进行直接 D2D通信的资源、 或包含中 间节点的 D2D通信路径、 或进行网络通信的资源。
接收模块 22进一步用于， 接收来自网络侧设备 10的邻近区域通知消 相应的， 发送模块 21进一步用于， 在接收模块 22收到邻近区域通知 消息后， 发送模块 21向网络侧设备 10发送 D2D确认指示消息。
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保 护范围。

Claims

1、 一种邻近设备通信的方法， 其特征在于， 该方法包括： 网络侧设备判断用户设备是否满足设备到设备 D2D通信条件； 如果判断满足 D2D通信条件 ,则所述网络侧设备通知所述用户设备， 并根据用户设备需求为所述用户设备配置进行直接 D2D通信的资源； 如果判断不满足 D2D通信条件， 则所述网络侧设备根据用户设备需 求为所述用户设备配置进行网络通信的资源。
2、 根据权利要求 1所述邻近设备通信的方法， 其特征在于， 在判断 不满足 D2D通信条件后， 该方法进一步包括：
所述网络侧设备判断是否满足通过中间节点通信条件， 如果满足， 则所述网络侧设备为所述用户设备配置包含中间节点的 D2D通信路径； 如果不满足， 则所述网络侧设备为所述用户设备配置进行网络通信的资 源。
3、根据权利要求 1所述邻近设备通信的方法，其特征在于，所述 D2D 通信条件为： 通信的用户设备间距属于直接 D2D通信的邻近区域， 且通 信的用户设备具备 D2D通信能力。
4、 根据权利要求 2所述邻近设备通信的方法， 其特征在于， 所述通 过中间节点通信条件为： 通信的用户设备间距超出直接 D2D通信的邻近 区域， 通信的用户设备具备 D2D通信能力， 且找到具有中继通信能力的 中间节点为所述用户设备提供通信中继。
5、 根据权利要求 1至 4任一项所述邻近设备通信的方法， 其特征在 于， 所述用户设备需求包括：
所述用户设备发起通信请求；
或者，所述网络侧设备通知用户设备后，所述用户设备选择开始 D2D 通信时， 所述用户设备向网络侧设备发送 D2D确认指示消息。
6、 根据权利要求 1或 3所述邻近设备通信的方法， 其特征在于， 该 方法进一步包括：
网络侧设备在用户设备的通信过程中， 根据所述用户设备间距， 选 择在直接 D2D通信和网络通信之间进行切换。
7、 根据权利要求 2或 4所述邻近设备通信的方法， 其特征在于， 该 方法进一步包括：
网络侧设备在用户设备的通信过程中， 根据所述用户设备间距， 选 择在直接 D2D通信、包含中间节点的 D2D通信和网络通信之间进行切换。
8、 一种邻近设备通信的系统， 其特征在于， 该系统包括： 网络侧设 备和用户设备，
所述网络侧设备， 用于判断用户设备是否满足设备到设备 D2D通信 条件； 如果判断满足 D2D通信条件， 则通知所述用户设备， 并根据用户 设备需求为所述用户设备配置进行直接 D2D通信的资源； 如果判断不满 足 D2D通信条件， 则根据用户设备需求为所述用户设备配置进行网络通 信的资源；
所述用户设备， 用于利用所述网络侧设备配置的资源进行通信。
9、 根据权利要求 8所述邻近设备通信的系统， 其特征在于， 该系统 进一步包括： 中间节点；
所述网络侧设备进一步用于， 在判断不满足 D2D通信条件后， 判断 是否满足通过中间节点通信条件， 如果满足， 则所述网络侧设备为所述 用户设备配置包含中间节点的 D2D通信路径； 如果不满足， 则所述网络 侧设备为所述用户设备配置进行网络通信的资源；
相应的， 所述中间节点用于， 为通过中间节点进行 D2D通信的用户 设备提供数据中继服务。
10、 根据权利要求 8 所述邻近设备通信的系统， 其特征在于， 所述 D2D通信条件为： 通信的用户设备间距属于直接 D2D通信的邻近区域， 且通信的用户设备具备 D2D通信能力。
11、根据权利要求 9所述邻近设备通信的系统， 其特征在于， 所述通 过中间节点通信条件为： 通信的用户设备间距超出直接 D2D通信的邻近 区域， 通信的用户设备具备 D2D通信能力， 且找到具有中继通信能力的 中间节点为所述用户设备提供通信中继。
12、 根据权利要求 8至少 11任一项所述邻近设备通信的系统， 其特 征在于， 所述用户设备需求包括：
所述用户设备发起通信请求；
或者，所述网络侧设备通知用户设备后，所述用户设备选择开始 D2D 通信时， 所述用户设备向网络侧设备发送 D2D确认指示消息。
13、 根据权利要求 8或 10所述邻近设备通信的系统， 其特征在于， 所述网络侧设备进一步用于 ,
在所述用户设备的通信过程中， 根据所述用户设备间距， 选择在直 接 D2D通信和网络通信之间进行切换。
14、 根据权利要求 9或 11所述邻近设备通信的系统， 其特征在于， 所述网络侧设备进一步用于 ,
在所述用户设备的通信过程中， 根据所述用户设备间距， 选择在直 接 D2D通信、 包含中间节点的 D2D通信和网络通信之间进行切换。
15、 一种网络侧设备， 其特征在于， 包括： 判断模块和资源配置模 块，
所述判断模块， 用于判断用户设备是否满足设备到设备 D2D通信条 件， 并将判断结果通知给所述资源配置模块；
所述资源配置模块，用于根据所述判断模块的判断结果，在满足 D2D 通信条件时， 通知所述用户设备， 并根据用户设备需求为所述用户设备 配置进行直接 D2D通信的资源；在不满足 D2D通信条件时，根据用户设 备需求为所述用户设备配置进行网络通信的资源。
16、 根据权利要求 15所述网络侧设备， 其特征在于， 所述判断模块 进一步用于， 在判断不满足 D2D通信条件后， 判断是否满足通过中间节 点通信条件， 并将判断结果通知给所述资源配置模块；
相应的， 所述资源配置模块进一步用于， 在所述判断模块判断满足 通过中间节点通信条件时， 为所述用户设备配置包含中间节点的 D2D通 信路径； 在所述判断模块判断不满足通过中间节点通信条件时， 为所述 用户设备配置进行网络通信的资源。
17、根据权利要求 15所述网络侧设备， 其特征在于， 所述 D2D通信 条件为： 通信的用户设备间距属于直接 D2D通信的邻近区域， 且通信的 用户设备具备 D2D通信能力。
18、 根据权利要求 16所述网络侧设备， 其特征在于， 所述通过中间 节点通信条件为： 通信的用户设备间距超出直接 D2D通信的邻近区域， 通信的用户设备具备 D2D通信能力， 且找到具有中继通信能力的中间节 点为所述用户设备提供通信中继。
19、 根据权利要求 15或 17所述网络侧设备， 其特征在于， 所述网 络设备进一步包括： 通信切换模块， 用于在所述用户设备的通信过程中， 根据所述用户设备间距，选择在直接 D2D通信和网络通信之间进行切换。
20、 根据权利要求 16或 18所述网络侧设备， 其特征在于， 所述网 络设备进一步包括： 通信切换模块， 用于在所述用户设备的通信过程中， 根据所述用户设备间距，选择在直接 D2D通信、 包含中间节点的 D2D通 信和网络通信之间进行切换。
21、 一种用户设备， 其特征在于， 包括： 发送模块和接收模块， 所述发送模块， 用于向网络侧设备发送支持 D2D通信的签约数据， 利用所述网络侧设备配置的资源发送通信数据；
所述接收模块， 用于利用所述网络侧设备配置的资源接收通信数据； 所述网络侧设备配置的资源为： 进行直接 D2D通信的资源、 或包含 中间节点的 D2D通信路径、 或进行网络通信的资源。
11、 根据权利要求 21所述用户设备， 其特征在于， 所述接收模块进 一步用于， 接收来自所述网络侧设备的邻近区域通知消息；
相应的， 所述发送模块进一步用于， 在所述接收模块收到邻近区域 通知消息后， 向网络侧设备发送 D2D确认指示消息。
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