WO2016173077A1 - 用于终端直连通信的设备发现方法、装置和终端 - Google Patents

用于终端直连通信的设备发现方法、装置和终端 Download PDF

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Publication number
WO2016173077A1
WO2016173077A1 PCT/CN2015/080410 CN2015080410W WO2016173077A1 WO 2016173077 A1 WO2016173077 A1 WO 2016173077A1 CN 2015080410 W CN2015080410 W CN 2015080410W WO 2016173077 A1 WO2016173077 A1 WO 2016173077A1
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Prior art keywords
terminal
discovery
terminals
group
terminal group
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English (en)
French (fr)
Inventor
雷艺学
张晨璐
张云飞
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a device discovery method for terminal direct connection communication, a device discovery device for terminal direct connection communication, and a terminal.
  • D2D Device to Device
  • D2D technology mainly includes D2D discovery (ie discovery phase) and D2D communication (ie communication phase).
  • D2D discovery and D2D communication are independent services.
  • D2D communication allows two UEs to directly send data directly through a specific channel (sidelink channel). And transmission without transmission through the base station.
  • D2D discovery is a process introduced by 3GPP to support one terminal to determine whether another terminal is in a neighboring area.
  • the D2D discovery mechanism defined therein is mainly based on each UE transmitting a D2D discovery message.
  • This scenario makes it possible to have a large number of D2D discovery messages in a scenario where the density of the terminal is large and the number of terminals participating in the D2D discovery is high. In this case, it will be difficult to meet the requirements of D2D discovery regardless of the D2D discovery resource allocation mode (that is, the allocation mode of the dedicated resource or shared resource pool), especially considering the density of D2D terminals in the future 5G network. Big scene.
  • the present invention is based on at least one of the above technical problems, and proposes a new one for terminal straight
  • the device discovery scheme of the communication device effectively reduces the time-frequency resources occupied in the D2D discovery process and improves the discovery efficiency of the D2D.
  • the present invention provides a device discovery method for terminal direct communication.
  • the device discovery method is applicable to a terminal, and includes: the terminal and the at least one D2D terminal having a predetermined positional relationship form a D2D terminal group. Determining whether it can act as a proxy terminal of the D2D terminal group; when determining that the proxy terminal is capable of being used, the terminal sends a discovery message indicating the D2D terminal group for other D2D terminals to receive The discovery message can simultaneously discover all the terminals in the D2D terminal group according to the discovery message.
  • the terminal forms a D2D terminal group by at least one D2D terminal having a predetermined positional relationship, and transmits a discovery message indicating a D2D terminal group when determining a proxy terminal capable of acting as a D2D terminal group, so that When receiving the discovery message, the other D2D terminal can simultaneously discover all the terminals in the D2D terminal group, so that when the D2D discovery process is required, the D2D terminal group discovery message can be sent by one D2D terminal in the D2D terminal group. It avoids that all terminals in the D2D terminal group send discovery messages and occupy more time-frequency resources, and also improves the discovery efficiency of D2D.
  • the step of determining whether it can be the proxy terminal of the terminal group specifically includes: the terminal sending a request as the proxy terminal to the at least one D2D terminal; When at least one consent instruction fed back by the D2D terminal is determined, it can be determined as the proxy terminal.
  • the D2D terminal wishes to act as a D2D terminal group proxy terminal, it needs to send a request to other terminals in the D2D terminal group, and can be used as a D2D terminal group when the other terminals in the D2D terminal group agree. Proxy terminal.
  • the method further includes: receiving a D2D discovery identifier sent by each D2D terminal in the at least one D2D terminal; and storing the each The D2D discovery identifier sent by the D2D terminal.
  • each D2D terminal is determined according to the D2D discovery identifier by receiving the D2D discovery identifier sent by each D2D terminal and storing the D2D discovery identifier sent by each D2D terminal.
  • the method further includes: mapping a D2D discovery identifier of all D2D terminals in the D2D terminal group to a virtual D2D group discovery identifier; or The D2D discovery identifier of each D2D terminal is mapped to a virtual D2D discovery identifier.
  • the D2D discovery identifier of all the D2D terminals in the D2D terminal group is mapped to a virtual D2D group discovery identifier, or the D2D discovery identifier of each D2D terminal is mapped to a virtual D2D discovery identifier.
  • the D2D discovery identifier of all the D2D terminals may be mapped to a virtual D2D group discovery identifier. If the D2D service needs to be specific to each D2D terminal, The D2D discovery identifier of each D2D terminal is mapped to a virtual D2D discovery identifier.
  • the method before the sending the discovery message, the method further includes: according to the D2D discovery identifier of all D2D terminals in the D2D terminal group, the number of D2D terminals in the D2D terminal group, And the number of resources that the discovery message can occupy generates the discovery message.
  • the discovery message is generated according to the D2D discovery identifier of all D2D terminals, the number of D2D terminals in the D2D terminal group, and the number of resources occupied by the discovery message, so that other terminals can be found through parsing when receiving the discovery message.
  • the message discovers information about the D2D terminal group.
  • the discovery message is updated, so that the information of the D2D terminal group represented by the discovery message is in the latest state, thereby ensuring that other terminals are parsing the discovery message. After that, the relevant information of the D2D terminal group can be accurately determined.
  • the step of detecting whether each D2D terminal leaves the D2D terminal group specifically includes:
  • Whether each of the D2D terminals leaves the D2D terminal group is determined according to whether channel measurement information and/or synchronization information fed back by each D2D terminal can be received.
  • a device discovery method for terminal direct communication is also provided.
  • the device discovery method is applicable to a terminal, and includes: the terminal and the at least one D2D terminal having a predetermined positional relationship form a D2D. a terminal group, and receiving a request message sent by any D2D terminal in the D2D terminal group as a proxy terminal of the D2D terminal group; the terminal feeding back a consent instruction to any of the D2D terminals, and
  • the D2D discovery identifier is sent to any of the D2D terminals for the any D2D terminal to generate and send a discovery message indicating the D2D terminal group.
  • the D2D terminal group is composed of at least one D2D terminal having a predetermined positional relationship, and the consent instruction and the D2D discovery identifier of the D2D terminal are sent back to the D2D terminal that sends the request, so that the D2D terminal that sends the request can be used as the D2D terminal.
  • the proxy terminal sends a discovery message indicating the D2D terminal group, and the other D2D terminal can simultaneously discover all the terminals in the D2D terminal group when receiving the discovery message, so that when the D2D discovery process is required, the The D2D terminal sends the discovery message of the D2D terminal group, which avoids that all the terminals in the D2D terminal group send the discovery message and occupy more time-frequency resources, and also improves the discovery efficiency of the D2D.
  • the method further includes: stopping sending the discovery signal corresponding to the service type of the D2D terminal group after feeding back the consent instruction to the any D2D terminal.
  • the discovery message of the D2D terminal group is sent by any of the D2D terminals after the feedback command is fed back to any of the D2D terminals, it is not necessary to transmit the service type corresponding to the D2D terminal group.
  • Discover the signal the terminal can send discovery signals of other service types.
  • a device discovery method for terminal direct communication is also provided.
  • the device discovery method is applicable to a terminal, and includes: the terminal detecting a discovery message sent by another D2D terminal; When it is determined according to the discovery message that the other D2D terminal is a proxy terminal of a D2D terminal group composed of a plurality of D2D terminals, the discovery message is parsed to simultaneously discover all terminals in the D2D terminal group.
  • the discovery message is parsed to simultaneously discover all the terminals in the D2D terminal group, so that When the D2D discovery process is required, the D2D terminal group can send the discovery message of the D2D terminal group, which avoids all the terminals in the D2D terminal group sending the discovery message and occupies more time-frequency resources, and also improves the D2D. Discovery efficiency.
  • the step of parsing the discovery message comprises:
  • the discovery message is parsed by communicating with the other D2D terminals.
  • a device discovery apparatus for terminal direct communication is further provided, the device discovery apparatus being applicable to a terminal, comprising: a determining unit, configured to have a predetermined positional relationship between the terminal and the terminal When the at least one D2D terminal constitutes a D2D terminal group, determining whether the terminal is capable of acting as a proxy terminal of the D2D terminal group; and the first sending unit is configured to determine, at the determining unit, that the terminal is capable of serving as the proxy terminal And sending a discovery message indicating the group of the D2D terminal, so that the other D2D terminal can simultaneously discover all the terminals in the D2D terminal group according to the discovery message when receiving the discovery message.
  • a D2D terminal group is formed by at least one D2D terminal having a predetermined positional relationship, and when a proxy terminal capable of acting as a D2D terminal group is determined, a discovery message indicating a D2D terminal group is transmitted to make other
  • the D2D terminal can simultaneously discover all the terminals in the D2D terminal group, so that when the D2D discovery process is required, the D2D terminal group can send the discovery message of the D2D terminal group, thereby avoiding the D2D terminal group. All terminals send discovery messages and occupy more time-frequency resources, and also improve the discovery efficiency of D2D.
  • the determining unit is configured to: send a request as the proxy terminal to the at least one D2D terminal, and determine, when receiving the consent instruction fed back by the at least one D2D terminal,
  • the terminal can function as the proxy terminal. Specifically, if the D2D terminal wishes to act as a D2D terminal group proxy terminal, it is required to send a request to other terminals in the D2D terminal group, and only when other terminals in the D2D terminal group agree. Acting as a proxy terminal for a D2D terminal group.
  • the method further includes: a receiving unit, configured to receive, after receiving the consent instruction fed back by the at least one D2D terminal, a D2D discovery identifier sent by each D2D terminal in the at least one D2D terminal; And a storage unit, configured to store the D2D discovery identifier sent by each D2D terminal.
  • each D2D terminal is determined according to the D2D discovery identifier by receiving the D2D discovery identifier sent by each D2D terminal and storing the D2D discovery identifier sent by each D2D terminal.
  • the method further includes: a processing unit, configured to map the D2D discovery identifiers of all the D2D terminals in the D2D terminal group into one virtual D2D group discovery identifier, or each of the The D2D discovery identifier of the D2D terminal is mapped to a virtual D2D discovery identifier.
  • the D2D discovery identifier of all the D2D terminals in the D2D terminal group is mapped to a virtual D2D group discovery identifier, or the D2D discovery identifier of each D2D terminal is mapped to a virtual D2D discovery identifier.
  • the D2D discovery identifier of all the D2D terminals may be mapped to a virtual D2D group discovery identifier. If the D2D service needs to be specific to each D2D terminal, The D2D discovery identifier of each D2D terminal is mapped to a virtual D2D discovery identifier.
  • the method further includes: a generating unit, configured to use, according to the D2D discovery identifier of all D2D terminals in the D2D terminal group, the number of D2D terminals in the D2D terminal group, and the The discovery message can be generated by the number of resources that the discovery message can occupy.
  • the discovery message is generated according to the D2D discovery identifier of all D2D terminals, the number of D2D terminals in the D2D terminal group, and the number of resources occupied by the discovery message, so that other terminals can be found through parsing when receiving the discovery message.
  • the message discovers information about the D2D terminal group.
  • the method further includes: a detecting unit, configured to detect whether each D2D terminal in the at least one D2D terminal leaves the D2D terminal group; And to update the discovery message when the detecting unit detects that any one of the at least one D2D terminal leaves the D2D terminal group.
  • the discovery message is updated, so that the information of the D2D terminal group represented by the discovery message is in the latest state, thereby ensuring that other terminals are parsing the discovery message. After that, the relevant information of the D2D terminal group can be accurately determined.
  • the detecting unit is specifically configured to:
  • Whether each of the D2D terminals leaves the D2D terminal group is determined according to whether channel measurement information and/or synchronization information fed back by each D2D terminal can be received.
  • a device discovery apparatus for terminal direct communication is further provided.
  • the device discovery apparatus is applicable to a terminal, and includes: a receiving unit, configured to have a predetermined positional relationship between the terminal and the terminal.
  • the terminal feeds back the consent command, and sends the D2D discovery identifier of the terminal to the any D2D terminal, so that the any D2D terminal generates and sends a discovery message indicating the D2D terminal group.
  • the D2D terminal group is composed of at least one D2D terminal having a predetermined positional relationship, and the consent instruction and the D2D discovery identifier of the D2D terminal are sent back to the D2D terminal that sends the request, so that the D2D terminal that sends the request can be used as the D2D terminal.
  • the proxy terminal sends a discovery message indicating the D2D terminal group, and the other D2D terminal can simultaneously discover all the terminals in the D2D terminal group when receiving the discovery message, so that when the D2D discovery process is required, the The D2D terminal sends the discovery message of the D2D terminal group, which avoids that all the terminals in the D2D terminal group send the discovery message and occupy more time-frequency resources, and also improves the discovery efficiency of the D2D.
  • the sending unit is further configured to stop sending the discovery signal corresponding to the service type of the D2D terminal group after feeding back the consent instruction to the any D2D terminal.
  • the discovery message of the D2D terminal group is sent by any of the D2D terminals after the feedback command is fed back to any of the D2D terminals, it is not necessary to transmit the service type corresponding to the D2D terminal group. Discover the signal.
  • the terminal can send discovery signals of other service types.
  • a device discovery device for terminal direct communication is further provided, where the device discovery device is applicable to a terminal, and includes: a detecting unit, configured to detect a discovery message sent by another D2D terminal; a unit, configured to parse the discovery message to simultaneously discover the D2D terminal group when determining that the other D2D terminal is a proxy terminal of a D2D terminal group composed of a plurality of D2D terminals according to the discovery message All terminals.
  • the discovery message is parsed to simultaneously discover all the terminals in the D2D terminal group, so that When the D2D discovery process is required, the D2D terminal group can send the discovery message of the D2D terminal group, which avoids all the terminals in the D2D terminal group sending the discovery message and occupies more time-frequency resources, and also improves the D2D. Discovery efficiency.
  • the processing unit is configured to: parse the discovery message according to a predefined parsing syntax; or interact with the network side device to parse the discovery message; or The other D2D terminals communicate to parse the discovery message.
  • a terminal comprising a communication bus, a transceiver, a memory, and a processor, wherein:
  • the communication bus is configured to implement connection communication between the transceiver device, the memory, and the processor;
  • the program stores a set of program codes, and the processor calls program code stored in the memory to perform the following operations:
  • the processor is configured to form a D2D terminal group with at least one D2D terminal having a predetermined positional relationship, and determine whether it can be a proxy terminal of the D2D terminal group;
  • the processor is further configured to: when determining to be the proxy terminal, send, by using the transceiver, a discovery message indicating the D2D terminal group, so that other D2D terminals can receive the discovery message according to the The discovery message simultaneously discovers all terminals in the D2D terminal group.
  • the step of determining, by the processor, whether it can be a proxy terminal of the terminal group includes:
  • the transceiver device is further configured to receive a D2D discovery identifier sent by each D2D terminal in the at least one D2D terminal;
  • the processor is further configured to store the D2D discovery identifier sent by each D2D terminal.
  • the processor is further configured to:
  • the processor is further configured to:
  • the processor is further configured to:
  • the discovery message is updated upon detecting that any of the at least one D2D terminal leaves the D2D terminal group.
  • the step of the processor detecting whether the D2D terminal leaves the D2D terminal group specifically includes:
  • Whether each of the D2D terminals leaves the D2D terminal group is determined according to whether channel measurement information and/or synchronization information fed back by each D2D terminal can be received.
  • a terminal comprising a communication bus, a transceiver, a memory, and a processor, wherein:
  • the communication bus is configured to implement connection communication between the transceiver device, the memory, and the processor;
  • the program stores a set of program codes, and the transceiver device and the processor call program code stored in the memory to perform the following operations:
  • the processor configured to form a D2D terminal group with at least one D2D terminal having a predetermined positional relationship
  • the transceiver device is configured to receive a request message sent by any D2D terminal in the D2D terminal group as a proxy terminal of the D2D terminal group;
  • the transceiver device is further configured to feed back a consent instruction to the any D2D terminal, and send its own D2D discovery identifier to the any D2D terminal, where the any D2D terminal generates and sends the D2D.
  • the discovery message of the terminal group is further configured to feed back a consent instruction to the any D2D terminal, and send its own D2D discovery identifier to the any D2D terminal, where the any D2D terminal generates and sends the D2D.
  • the discovery message of the terminal group is further configured to feed back a consent instruction to the any D2D terminal, and send its own D2D discovery identifier to the any D2D terminal, where the any D2D terminal generates and sends the D2D.
  • the transceiver device is further configured to:
  • a terminal comprising a communication bus, a transceiver, a memory, and a processor, wherein:
  • the communication bus is configured to implement connection communication between the transceiver device, the memory, and the processor;
  • the program stores a set of program codes, and the transceiver device and the processor call program code stored in the memory to perform the following operations:
  • the processor is configured to detect a discovery message sent by another D2D terminal;
  • the processor is further configured to: when determining, according to the discovery message, that the other D2D terminal is a proxy terminal of a D2D terminal group composed of a plurality of D2D terminals, parse the discovery message to simultaneously discover the D2D All terminals in the terminal group.
  • the step of the processor parsing the discovery message includes:
  • the discovery message is parsed by communicating with the other D2D terminals.
  • FIG. 1 is a schematic flow chart showing a device discovery method for terminal direct communication according to a first embodiment of the present invention
  • FIG. 2 is a schematic block diagram of a device discovery apparatus for terminal direct communication according to a first embodiment of the present invention
  • FIG. 3 is a schematic flow chart showing a device discovery method for terminal direct communication according to a second embodiment of the present invention.
  • FIG. 4 is a schematic block diagram of a device discovery apparatus for terminal direct communication according to a second embodiment of the present invention.
  • FIG. 5 is a schematic flow chart showing a device discovery method for terminal direct communication according to a third embodiment of the present invention.
  • FIG. 6 is a schematic block diagram of a device discovery apparatus for terminal direct communication according to a third embodiment of the present invention.
  • FIG. 7 is a schematic diagram showing a D2D terminal group discovery process according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram showing signaling interaction in a discovery process of a D2D terminal group according to an embodiment of the present invention.
  • FIG. 9 is a block diagram showing the structure of an embodiment of a terminal according to a fourth embodiment of the present invention.
  • FIG. 10 is a block diagram showing the structure of an embodiment of a terminal according to a fifth embodiment of the present invention.
  • Figure 11 is a block diagram showing the structure of an embodiment of a terminal in accordance with a sixth embodiment of the present invention.
  • FIG. 1 is a schematic flow chart showing a device discovery method for terminal direct communication according to a first embodiment of the present invention.
  • the device discovery method is applicable to a terminal, including: step 102, the terminal has a predetermined positional relationship. At least one D2D terminal constitutes a D2D terminal group, and determines whether it can be used as a proxy terminal of the D2D terminal group; Step 104, when it is determined that the proxy terminal can be used, the terminal sends a representation of the D2D terminal group.
  • the discovery message can be used by other D2D terminals to simultaneously discover all the terminals in the D2D terminal group according to the discovery message when receiving the discovery message.
  • the terminal forms a D2D terminal group by at least one D2D terminal having a predetermined positional relationship, and transmits a discovery message indicating a D2D terminal group when determining a proxy terminal capable of acting as a D2D terminal group, so that When receiving the discovery message, the other D2D terminal can simultaneously discover all the terminals in the D2D terminal group, so that when the D2D discovery process is required, the D2D terminal group discovery message can be sent by one D2D terminal in the D2D terminal group. It avoids that all terminals in the D2D terminal group send discovery messages and occupy more time-frequency resources, and also improves the discovery efficiency of D2D.
  • the step of determining whether it can be the proxy terminal of the terminal group specifically includes: the terminal sending a request as the proxy terminal to the at least one D2D terminal; When at least one consent instruction fed back by the D2D terminal is determined, it can be determined as the proxy terminal.
  • the D2D terminal is expected to be a D2D terminal group generation
  • the terminal needs to send a request to other terminals in the D2D terminal group, and can be used as a proxy terminal of the D2D terminal group when the other terminals in the D2D terminal group agree.
  • the method further includes: receiving a D2D discovery identifier sent by each D2D terminal in the at least one D2D terminal; and storing the each The D2D discovery identifier sent by the D2D terminal.
  • each D2D terminal is determined according to the D2D discovery identifier by receiving the D2D discovery identifier sent by each of the at least one D2D terminal and storing the D2D discovery identifier sent by each D2D terminal.
  • the method further includes: mapping a D2D discovery identifier of all D2D terminals in the D2D terminal group to a virtual D2D group discovery identifier; or discovering D2D of each D2D terminal.
  • the identity is mapped to a virtual D2D discovery identity.
  • the D2D discovery identifier of all the D2D terminals in the D2D terminal group is mapped to a virtual D2D group discovery identifier, or the D2D discovery identifier of each D2D terminal is mapped to a virtual D2D discovery identifier.
  • the D2D discovery identifier of all the D2D terminals may be mapped to a virtual D2D group discovery identifier. If the D2D service needs to be specific to each D2D terminal, The D2D discovery identifier of each D2D terminal is mapped to a virtual D2D discovery identifier.
  • the method before the sending the discovery message, the method further includes: according to the D2D discovery identifier of all D2D terminals in the D2D terminal group, the number of D2D terminals in the D2D terminal group, And the number of resources that the discovery message can occupy generates the discovery message.
  • the discovery message is generated according to the D2D discovery identifier of all D2D terminals, the number of D2D terminals in the D2D terminal group, and the number of resources occupied by the discovery message, so that other terminals can be found through parsing when receiving the discovery message.
  • the message discovers information about the D2D terminal group.
  • the discovery message is updated, so that the information of the D2D terminal group represented by the discovery message is in the latest state, thereby ensuring that other terminals are parsing the discovery message. After that, the relevant information of the D2D terminal group can be accurately determined.
  • the step of detecting whether each D2D terminal leaves the D2D terminal group specifically includes:
  • Whether each of the D2D terminals leaves the D2D terminal group is determined according to whether channel measurement information and/or synchronization information fed back by each D2D terminal can be received.
  • FIG. 2 is a schematic block diagram of a device discovery apparatus for terminal direct communication in accordance with a first embodiment of the present invention.
  • the device discovery apparatus 200 for terminal direct communication includes: a determining unit 202 and a first transmitting unit 204, wherein the device discovery apparatus 200 is applicable to terminal.
  • the determining unit 202 is configured to determine, when the terminal forms a D2D terminal group with at least one D2D terminal having a predetermined positional relationship, whether the terminal is capable of acting as a proxy terminal of the D2D terminal group;
  • the sending unit 204 is configured to: when the determining unit 202 determines that the terminal is capable of serving as the proxy terminal, send a discovery message indicating the D2D terminal group, so that other D2D terminals can receive the discovery message when receiving the discovery message. All terminals in the D2D terminal group are simultaneously discovered according to the discovery message.
  • a D2D terminal group is formed by at least one D2D terminal having a predetermined positional relationship, and when a proxy terminal capable of acting as a D2D terminal group is determined, a discovery message indicating a D2D terminal group is transmitted to make other
  • the D2D terminal can simultaneously discover all the terminals in the D2D terminal group, so that when the D2D discovery process is required, the D2D terminal group can send the discovery message of the D2D terminal group, thereby avoiding the D2D terminal group. All terminals in the group send discovery messages and occupy more time-frequency resources, and also improve the discovery efficiency of D2D.
  • the determining unit 202 is specifically configured to: send a request as the proxy terminal to the at least one D2D terminal, and when receiving the consent instruction fed back by the at least one D2D terminal, It is determined that the terminal can function as the proxy terminal. Specifically, if the D2D terminal wishes to act as a D2D terminal group proxy terminal, it needs to send a request to other terminals in the D2D terminal group, and can be used as a D2D terminal group when the other terminals in the D2D terminal group agree. Proxy terminal.
  • the method further includes: a receiving unit 206, configured to receive, after receiving the consent instruction fed back by the at least one D2D terminal, a D2D discovery identifier sent by each D2D terminal in the at least one D2D terminal.
  • the storage unit 208 is configured to store the D2D discovery identifier sent by each of the D2D terminals.
  • each D2D terminal is determined according to the D2D discovery identifier by receiving the D2D discovery identifier sent by each D2D terminal and storing the D2D discovery identifier sent by each D2D terminal.
  • the method further includes: a processing unit 210, configured to map, to the virtual D2D group discovery identifier, a D2D discovery identifier of all D2D terminals in the D2D terminal group, or The D2D discovery identifier of the D2D terminals is mapped to a virtual D2D discovery identifier.
  • a processing unit 210 configured to map, to the virtual D2D group discovery identifier, a D2D discovery identifier of all D2D terminals in the D2D terminal group, or The D2D discovery identifier of the D2D terminals is mapped to a virtual D2D discovery identifier.
  • the D2D discovery identifier of all the D2D terminals in the D2D terminal group is mapped to a virtual D2D group discovery identifier, or the D2D discovery identifier of each D2D terminal is mapped to a virtual D2D discovery identifier.
  • the D2D discovery identifier of all the D2D terminals may be mapped to a virtual D2D group discovery identifier. If the D2D service needs to be specific to each D2D terminal, The D2D discovery identifier of each D2D terminal is mapped to a virtual D2D discovery identifier.
  • the method further includes: a generating unit 212, configured to use, according to a D2D discovery identifier of all D2D terminals in the D2D terminal group, a number of D2D terminals in the D2D terminal group, and The number of resources that the discovery message can occupy generates the discovery Message.
  • a generating unit 212 configured to use, according to a D2D discovery identifier of all D2D terminals in the D2D terminal group, a number of D2D terminals in the D2D terminal group, and The number of resources that the discovery message can occupy generates the discovery Message.
  • the discovery message is generated according to the D2D discovery identifier of all D2D terminals, the number of D2D terminals in the D2D terminal group, and the number of resources occupied by the discovery message, so that other terminals can be found through parsing when receiving the discovery message.
  • the message discovers information about the D2D terminal group.
  • the method further includes: a detecting unit 214, configured to detect whether each D2D terminal in the at least one D2D terminal leaves the D2D terminal group; and an updating unit 216, in the detecting The unit 214 detects that any of the at least one D2D terminal leaves the D2D terminal group, and updates the discovery message.
  • the discovery message is updated, so that the information of the D2D terminal group represented by the discovery message is in the latest state, thereby ensuring that other terminals are parsing the discovery message. After that, the relevant information of the D2D terminal group can be accurately determined.
  • the detecting unit 214 is specifically configured to:
  • Whether each of the D2D terminals leaves the D2D terminal group is determined according to whether channel measurement information and/or synchronization information fed back by each D2D terminal can be received.
  • FIG. 3 shows a schematic flow chart of a device discovery method for terminal direct communication according to a second embodiment of the present invention.
  • the device discovery method is applicable to a terminal, including: step 302, the terminal has a predetermined positional relationship. At least one D2D terminal constitutes a D2D terminal group, and receives a request message sent by any D2D terminal in the D2D terminal group as a proxy terminal of the D2D terminal group; in step 304, the terminal goes to any The D2D terminal feeds back the consent command and sends its own D2D discovery identifier to any of the D2D terminals for any of the D2D terminals. The terminal generates and sends a discovery message indicating the D2D terminal group.
  • the D2D terminal group is composed of at least one D2D terminal having a predetermined positional relationship, and the consent instruction and the D2D discovery identifier of the D2D terminal are sent back to the D2D terminal that sends the request, so that the D2D terminal that sends the request can be used as the D2D terminal.
  • the proxy terminal sends a discovery message indicating the D2D terminal group, and the other D2D terminal can simultaneously discover all the terminals in the D2D terminal group when receiving the discovery message, so that when the D2D discovery process is required, the The D2D terminal sends the discovery message of the D2D terminal group, which avoids that all the terminals in the D2D terminal group send the discovery message and occupy more time-frequency resources, and also improves the discovery efficiency of the D2D.
  • the method further includes: stopping sending the discovery signal corresponding to the service type of the D2D terminal group after feeding back the consent instruction to the any D2D terminal.
  • the discovery message of the D2D terminal group is sent by any of the D2D terminals after the feedback command is fed back to any of the D2D terminals, it is not necessary to transmit the service type corresponding to the D2D terminal group.
  • Discover the signal the terminal can send discovery signals of other service types.
  • FIG. 4 is a schematic block diagram of a device discovery apparatus for terminal direct communication in accordance with a second embodiment of the present invention.
  • a device discovery apparatus 400 for terminal direct communication includes: a receiving unit 402 and a transmitting unit 404, wherein the device discovery apparatus 400 is applicable to a terminal.
  • the receiving unit 404 is configured to receive, when the terminal and the at least one D2D terminal having the predetermined positional relationship form a D2D terminal group, the D2D terminal group sent by any D2D terminal in the D2D terminal group.
  • a discovery message representing the D2D terminal group is generated and transmitted.
  • the D2D terminal group is composed of at least one D2D terminal having a predetermined positional relationship, and the consent instruction and the D2D discovery identifier of the D2D terminal are sent back to the D2D terminal that sends the request, so that the D2D terminal that sends the request can be used as the D2D terminal.
  • Proxy terminal to send Sending a discovery message indicating a D2D terminal group for other D2D terminals to simultaneously discover all the terminals in the D2D terminal group when receiving the discovery message, so that when the D2D discovery process is required, the D2D terminal can be sent by one D2D terminal.
  • the discovery message of the group avoids that all the terminals in the D2D terminal group send the discovery message and occupy more time-frequency resources, and also improves the discovery efficiency of the D2D.
  • the sending unit 404 is further configured to stop sending the discovery signal corresponding to the service type of the D2D terminal group after feeding back the consent instruction to the any D2D terminal.
  • the discovery message of the D2D terminal group is sent by any of the D2D terminals after the feedback command is fed back to any of the D2D terminals, it is not necessary to transmit the service type corresponding to the D2D terminal group. Discover the signal.
  • the terminal can send discovery signals of other service types.
  • FIG. 5 is a schematic flow chart showing a device discovery method for terminal direct communication according to a third embodiment of the present invention.
  • the device discovery method is applicable to a terminal, including: Step 502, the terminal detects transmission by another D2D terminal. a discovery message; in step 504, the terminal, when determining, according to the discovery message, that the other D2D terminal is a proxy terminal of a D2D terminal group composed of a plurality of D2D terminals, parsing the discovery message to simultaneously discover the All terminals in the D2D terminal group.
  • the discovery message is parsed to simultaneously discover all the terminals in the D2D terminal group, so that When the D2D discovery process is required, the D2D terminal group can send the discovery message of the D2D terminal group, which avoids all the terminals in the D2D terminal group sending the discovery message and occupies more time-frequency resources, and also improves the D2D. Discovery efficiency.
  • the step of parsing the discovery message comprises:
  • the discovery message is parsed by communicating with the other D2D terminals.
  • Figure 6 is a schematic block diagram of a device discovery apparatus for terminal direct communication in accordance with a third embodiment of the present invention.
  • a device discovery apparatus 600 for terminal direct communication includes: a detection unit 602 and a processing unit 604, wherein the device discovery apparatus 600 is applicable to a terminal.
  • the detecting unit 602 is configured to detect a discovery message sent by another D2D terminal, and the processing unit 604 is configured to determine, according to the discovery message, that the other D2D terminal is a proxy of a D2D terminal group composed of multiple D2D terminals. At the time of the terminal, the discovery message is parsed to simultaneously discover all the terminals in the D2D terminal group.
  • the discovery message is parsed to simultaneously discover all the terminals in the D2D terminal group, so that When the D2D discovery process is required, the D2D terminal group can send the discovery message of the D2D terminal group, which avoids all the terminals in the D2D terminal group sending the discovery message and occupies more time-frequency resources, and also improves the D2D. Discovery efficiency.
  • the processing unit 604 is specifically configured to: parse the discovery message according to a predefined parsing syntax; or interact with the network side device to parse the discovery message; or Communicating with the other D2D terminals to parse the discovery message.
  • the present invention also proposes a terminal comprising: a device discovery device 200 for terminal direct communication as shown in FIG. 2; and/or a device discovery device for terminal direct communication as shown in FIG. 400; and/or device discovery device 600 for terminal direct communication as shown in FIG. 6.
  • the technical solution of the present invention mainly utilizes the group characteristics of D2D to improve the discovery efficiency, and is applicable to a scenario with network coverage and no network coverage.
  • the present invention mainly relates to the protocol mechanism on the RAN side, it is necessary to explain the assumption of the CN side of the technical solution of the present invention.
  • the present invention assumes that the network side manages the D2D group at a high level, and the terminal can determine whether it belongs to a group according to the identifier of the other terminal. In the scenario where there is no network coverage, the terminal can also determine that the discovered UE is based on pre-configured information such as the group ID. No belongs to a group.
  • the main idea of the present invention can be summarized as follows: For a terminal that has been discovered in a specific area or that has been pre-associated by means of previous D2D communication, one of the terminals can assume the role of Discovery Proxy.
  • the terminal and other terminals that select it as an agent have static subscription information or application-driven trust relationships. That is, after the selection and confirmation of the agent is completed, the transmission of the D2D discovery message is sent by the agent node as long as a certain proximity relationship is still maintained.
  • the user equipment (User equipment) that receives the D2D discovery message can discover multiple D2D terminals at one time according to the received D2D discovery message.
  • the UE (Monitoring UE) obtains a plurality of D2D UEs and multiple D2D UEs by parsing the message.
  • the currently running application information As shown in FIG. 7 , after receiving a discovery message representing a specific group sent by a proxy UE (Proxy UE), the UE (Monitoring UE) obtains a plurality of D2D UEs and multiple D2D UEs by parsing the message. The currently running application information.
  • the signaling process of the discovery process is as shown in FIG. 8.
  • the UE in the D2D group performs proxy confirmation with the proxy UE, that is, the UE as the proxy is selected, and the UE as the proxy can interact with the CN node when necessary.
  • the proxy UE may send a D2D group discovery message to enable the UE performing the discovery process to simultaneously discover multiple D2D terminals.
  • Discovery Proxy is a means of achieving high-efficiency D2D discovery by implementing hierarchical organization in high-density D2D terminal scenarios.
  • the information can be sent on the existing D2D discovery channel.
  • Other D2D terminals can choose whether to select the terminal as a proxy. If yes, a determination message is sent, and the D2D discovery identifier or the pre-configured D2D discovery identifier assigned to the network request is sent to the terminal as a Proxy.
  • all UEs can map the identifier according to a specific algorithm.
  • the new identifier obtained by the mapping may have a one-to-one or one-to-many correspondence with the original identifier, and the mapping relationship may be parsed at the receiving end UE or through interaction with the network side.
  • the one-to-one mapping is applicable to the case where the D2D discovery service needs to be specific to a certain UE, and the one-to-many mapping is applicable to the case where the D2D discovery service only needs to be specific to a certain group. For example, if the purpose of D2D discovery is to push coupon information based on the potential consumption intention of the group to a specific range of users, then it is not necessary to specific to a certain user, only need to Groups are fine.
  • the terminal that is the Proxy node When the terminal that is the Proxy node maintains the reachability information of the UE in the group, it can periodically detect the UE, and the UE leaving the group can actively notify the Proxy node. In order to reduce the recombination of signaling, if it is periodic detection, a large time period should be used as much as possible. Other information of D2D, such as channel measurement, synchronization, etc., can also be used to detect reachability without triggering the D2D discovery process again.
  • the D2D discovery message sent by the UE of the group discovery mechanism proposed by the present invention represents multiple UEs located in a specific area. Depending on the statistical dwell time characteristics of the UEs in the group and the terminal density, the number of UEs that the discovery message can represent may have a relatively large number range.
  • the Proxy acknowledgment other terminals in the D2D terminal group may choose not to send the D2D discovery signal unless the demand of other non-group services needs to be triggered before sending.
  • the construction of the group discovery message is performed according to the identifiers of multiple UEs obtained by mapping. Specifically, the discovery identifier may be generated according to the availability of the discovery resource and the number of UEs.
  • the group discovery identifier unencrypted content may be at the application layer level, for example, the following group discovery message may be constructed: Cardgamefans#100.outlet.xuanwumenarea@beijing, the group discovery message indicates the Xuanwumen area of Beijing There is 100 D2D users in an "outlet" who want to play card games together.
  • the group finds whether the message needs to be encrypted and then sent according to the configuration information when most UEs perform D2D discovery.
  • Analytic mode 1 The unified identifier resolution syntax can help the receiving UE to parse the group discovery message.
  • the syntax of this application layer may not be defined in the 3GPP specifications, and an XML mechanism may be used to ensure interoperability with terminal D2D services.
  • the analytic mode 2 After receiving the information, if the receiving UE is interested in the group, the network side can parse the information of the group Proxy node to perform subsequent D2D services. It should be noted that if there is no network coverage scenario, the receiving UE can only parse through interaction with the Proxy node. The receiving UE may only perform direct D2D communication with some UEs in the group, but the UE that cannot directly reach may need to communicate by means of UE relay.
  • the technical solution of the present invention enables the D2D group terminal with the cluster header to improve the D2D discovery efficiency, and is applicable to the scenario where the 3GPP LTE subsequent enhanced version and the D2D terminal density in the future 5G system are increased, and the unnecessary D2D discovery message can be reduced. Send and resource usage to improve system operation efficiency.
  • Fig. 9 is a block diagram showing the structure of an embodiment of a terminal in accordance with a fourth embodiment of the present invention.
  • the terminal may include at least one transceiver 503, at least one processor 501, such as a CPU, a memory 504, and at least one communication bus 502.
  • the communication bus 502 is configured to connect the transceiver 503, the processor 501, and the memory 504.
  • the above memory 504 may be a high speed RAM memory or a non-volatile memory such as a disk memory.
  • the memory 504 is further configured to store a set of program codes, and the transceiver 503 and the processor 501 are configured to call the program code stored in the memory 504, and perform the following operations:
  • the processor 501 is configured to form a D2D terminal group with at least one D2D terminal having a predetermined positional relationship, and determine whether it can be a proxy terminal of the D2D terminal group;
  • the processor 501 is further configured to: when the determining is capable of serving as the proxy terminal, send, by using the transceiver 503, a discovery message indicating the D2D terminal group, for other D2D terminals to receive the discovery message. All terminals in the D2D terminal group can be simultaneously discovered according to the discovery message.
  • the step of the processor 501 determining whether it can be the proxy terminal of the terminal group specifically includes:
  • the transceiver 503 When the transceiver 503 receives the consent instruction fed back by the at least one D2D terminal, it is determined that the proxy terminal can be used.
  • the transceiver device 503 is further configured to receive a D2D discovery identifier sent by each D2D terminal in the at least one D2D terminal;
  • the processor 501 is further configured to store the D2D discovery identifier sent by each of the D2D terminals.
  • the processor 501 is further configured to:
  • the processor 501 is further configured to:
  • the processor 501 is further configured to:
  • the discovery message is updated upon detecting that any of the at least one D2D terminal leaves the D2D terminal group.
  • the step of the processor 501 detecting whether the D2D terminal leaves the D2D terminal group specifically includes:
  • Whether each of the D2D terminals leaves the D2D terminal group is determined according to whether channel measurement information and/or synchronization information fed back by each D2D terminal can be received.
  • FIG. 10 is a block diagram showing the structure of an embodiment of a terminal according to a fifth embodiment of the present invention.
  • the terminal may include at least one transceiver 603, at least one processor 601, such as a CPU, a memory 604, and at least one communication bus 602.
  • the communication bus 602 is used to connect the transceiver 603, the processor 601, and the memory 604.
  • the above memory 604 may be a high speed RAM memory or a non-volatile memory such as a disk memory.
  • the above memory 604 is also used to store a set of programs
  • the sequence code, the transceiver 603 and the processor 601 are used to call the program code stored in the memory 604, and perform the following operations:
  • the processor 601 is configured to form a D2D terminal group with at least one D2D terminal having a predetermined positional relationship;
  • the transceiver 603 is configured to receive a request message sent by any D2D terminal in the D2D terminal group as a proxy terminal of the D2D terminal group;
  • the transceiver 603 is further configured to feed back a consent instruction to the any D2D terminal, and send its own D2D discovery identifier to the any D2D terminal, where the any D2D terminal generates and sends the The discovery message of the D2D terminal group.
  • the transceiver 603 is further configured to:
  • FIG. 11 is a block diagram showing the structure of an embodiment of a terminal in accordance with a sixth embodiment of the present invention.
  • the terminal may include at least one transceiver 703, at least one processor 701, such as a CPU, a memory 704, and at least one communication bus 702.
  • the communication bus 702 is used to connect the transceiver 703, the processor 701, and the memory 704.
  • the above memory 704 may be a high speed RAM memory or a non-volatile memory such as a disk memory.
  • the memory 704 is further configured to store a set of program codes, and the transceiver 703 and the processor 701 are configured to call the program code stored in the memory 704, and perform the following operations:
  • the processor 701 is configured to detect a discovery message sent by another D2D terminal.
  • the processor 701 is further configured to: when determining, according to the discovery message, that the other D2D terminal is a proxy terminal of a D2D terminal group that is composed of multiple D2D terminals, parse the discovery message to simultaneously discover the All terminals in the D2D terminal group.
  • the step of the processor 701 parsing the discovery message includes:
  • the discovery message is parsed by communicating with the other D2D terminals.

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Abstract

本发明提供了一种用于终端直连通信的设备发现方法、装置和终端，其中，用于终端直连通信的设备发现方法，适用于终端，包括：所述终端与具有预定位置关系的至少一个D2D终端组成D2D终端群组，并确定是否能够作为所述D2D终端群组的代理终端；在确定能够作为所述代理终端时，所述终端发送表示所述D2D终端群组的发现消息，以供其他D2D终端在接收到所述发现消息时能够根据所述发现消息同时发现所述D2D终端群组中的所有终端。本发明的技术方案有效减少了D2D发现过程中占用的时频资源，并且提高了D2D的发现效率。

Description

用于终端直连通信的设备发现方法、装置和终端
本申请要求于2015年4月27日提交中国专利局、申请号为201510206188.X，发明名称为“用于终端直连通信的设备发现方法、装置和终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，具体而言，涉及一种用于终端直连通信的设备发现方法、一种用于终端直连通信的设备发现装置和一种终端。
背景技术
随着移动终端的软硬件技术和无线通信技术的发展，终端直连通信技术(Device to Device，即D2D，是3GPP引入的终端直接通信的技术，允许用户数据传输不经过蜂窝网络的基础设施)逐渐成为一个重要的技术点。D2D技术主要包括D2D discovery(即发现阶段)和D2D communication(即通信阶段)，D2D discovery与D2D communication是独立的业务，D2D communication允许两个UE直接通过特定的信道(sidelink channel)直接进行数据的发送和传输，而无需经过基站的传输。
D2D发现是3GPP引入的支持一个终端判定另一个终端是否在邻近区域的过程。其中所定义的D2D发现机制，主要是基于每个UE自己发送D2D发现消息。这种方案使得在终端密度较大，且参与D2D发现的终端较多的场景下，会出现D2D发现消息较多的场景。这种情况下会导致无论采用哪种D2D发现的资源分配模式(即专有资源或共享资源池的分配模式)，都难以满足D2D发现的需求，尤其是考虑到未来5G网络中D2D终端密度更大的场景。
因此，如何能够减少D2D发现过程中占用的时频资源，并且提高D2D发现的效率成为亟待解决的技术问题。
发明内容
本发明正是基于上述技术问题至少之一，提出了一种新的用于终端直 连通信的设备发现方案，有效减少了D2D发现过程中占用的时频资源，并且提高了D2D的发现效率。
有鉴于此，本发明提出了一种用于终端直连通信的设备发现方法，所述设备发现方法适用于终端，包括：所述终端与具有预定位置关系的至少一个D2D终端组成D2D终端群组，并确定是否能够作为所述D2D终端群组的代理终端；在确定能够作为所述代理终端时，所述终端发送表示所述D2D终端群组的发现消息，以供其他D2D终端在接收到所述发现消息时能够根据所述发现消息同时发现所述D2D终端群组中的所有终端。
在该技术方案中，终端通过与具有预定位置关系的至少一个D2D终端组成D2D终端群组，并在确定能够作为D2D终端群组的代理终端时，发送表示D2D终端群组的发现消息，以使其他D2D终端在接收到发现消息时能够同时发现D2D终端群组中的所有终端，使得在需要进行D2D发现过程时，可以由D2D终端群组中的一个D2D终端发送D2D终端群组的发现消息，避免了D2D终端群组中的所有终端都发送发现消息而占用较多的时频资源，同时也提高了D2D的发现效率。
在上述技术方案中，优选地，确定是否能够作为所述终端群组的代理终端的步骤具体包括：所述终端向所述至少一个D2D终端发送作为所述代理终端的请求；在接收到所述至少一个D2D终端反馈的同意指令时，确定能够作为所述代理终端。具体地，若D2D终端希望作为D2D终端群组代理终端，则需要向D2D终端群组中的其他终端发送请求，并且在D2D终端群组中的其他终端同意时，才能够作为D2D终端群组的代理终端。
在上述技术方案中，优选地，在接收到所述至少一个D2D终端反馈的同意指令后，还包括：接收所述至少一个D2D终端中每个D2D终端发送的D2D发现标识；以及存储所述每个D2D终端发送的D2D发现标识。
在该技术方案中，通过接收每个D2D终端发送的D2D发现标识，并存储每个D2D终端发送的D2D发现标识，使得能够根据D2D发现标识确定每个D2D终端。
在上述技术方案中，优选地，还包括：将所述D2D终端群组中的所有D2D终端的D2D发现标识映射为一个虚拟的D2D群组发现标识；或将所 述每个D2D终端的D2D发现标识映射为一个虚拟的D2D发现标识。
在该技术方案中，通过将D2D终端群组中的所有D2D终端的D2D发现标识映射为一个虚拟的D2D群组发现标识，或将每个D2D终端的D2D发现标识映射为一个虚拟的D2D发现标识，使得能够保护D2D终端群组或每个D2D终端的隐私。具体地，若D2D业务仅需要具体到某个群组，则可以将所有D2D终端的D2D发现标识映射为一个虚拟的D2D群组发现标识，若D2D业务需要具体到每个D2D终端，则可以将每个D2D终端的D2D发现标识映射为一个虚拟的D2D发现标识。
在上述技术方案中，优选地，在发送所述发现消息之前，还包括：根据所述D2D终端群组中的所有D2D终端的D2D发现标识、所述D2D终端群组中的D2D终端的数量，以及所述发现消息能够占用的资源数量生成所述发现消息。
在该技术方案中，通过根据所有D2D终端的D2D发现标识、D2D终端群组中的D2D终端数量和发现消息占用的资源数量生成发现消息，使得其他终端在接收到发现消息时，能够通过解析发现消息发现D2D终端群组的相关信息。
在上述技术方案中，优选地，还包括：检测所述至少一个D2D终端中的每个D2D终端是否离开所述D2D终端群组；在检测到所述至少一个D2D终端中的任一D2D终端离开所述D2D终端群组时，更新所述发现消息。
在该技术方案中，通过在检测到任一D2D终端离开D2D终端群组时，更新发现消息，使得发现消息所代表的D2D终端群组的信息时刻处于最新状态，进而确保其他终端在解析发现消息后能够准确确定D2D终端群组的相关信息。
其中，检测所述每个D2D终端是否离开所述D2D终端群组的步骤具体包括：
实时或周期性地向所述每个D2D终端发送询问信号，以根据是否接收到所述每个D2D终端的反馈信息确定所述每个D2D终端是否离开所述D2D终端群组；或
向所述每个D2D终端发送控制信令，以使所述每个的D2D终端在离 开所述D2D终端群组时发送通知信息告知所述代理终端；或
根据是否能够接收到所述每个D2D终端反馈的信道测量信息和/或同步信息来确定所述每个D2D终端是否离开所述D2D终端群组。
根据本发明的第二方面，还提出了一种用于终端直连通信的设备发现方法，所述设备发现方法适用于终端，包括：所述终端与具有预定位置关系的至少一个D2D终端组成D2D终端群组，并接收所述D2D终端群组中任一D2D终端发送的作为所述D2D终端群组的代理终端的请求消息；所述终端向所述任一D2D终端反馈同意指令，并将自身的D2D发现标识发送至所述任一D2D终端，以供所述任一D2D终端生成并发送表示所述D2D终端群组的发现消息。
在该技术方案中，通过与具有预定位置关系的至少一个D2D终端组成D2D终端群组，并向发送请求的D2D终端反馈同意指令和自身的D2D发现标识，使得发送请求的D2D终端能够作为D2D终端的代理终端，以发送表示D2D终端群组的发现消息，供其他D2D终端在接收到发现消息时能够同时发现D2D终端群组中的所有终端，进而使得在需要进行D2D发现过程时，可以由一个D2D终端发送D2D终端群组的发现消息，避免了D2D终端群组中的所有终端都发送发现消息而占用较多的时频资源，同时也提高了D2D的发现效率。
在上述技术方案中，优选地，还包括：在向所述任一D2D终端反馈同意指令后，停止发送与所述D2D终端群组的业务类型相对应的发现信号。具体地，由于在向上述任一D2D终端反馈了同意指令后，D2D终端群组的发现消息都由上述任一D2D终端进行发送，因此无需再发送与该D2D终端群组的业务类型相对应的发现信号。当然，终端可以发送其他业务类型的发现信号。
根据本发明的第三方面，还提出了一种用于终端直连通信的设备发现方法，所述设备发现方法适用于终端，包括：所述终端检测其他D2D终端发送的发现消息；所述终端在根据所述发现消息确定所述其他D2D终端是作为由多个D2D终端组成的D2D终端群组的代理终端时，解析所述发现消息，以同时发现所述D2D终端群组中的所有终端。
在该技术方案中，通过在根据发现消息确定其他D2D终端是作为由多个D2D终端组成的D2D终端群组的代理终端时，解析发现消息，以同时发现D2D终端群组中的所有终端，使得在需要进行D2D发现过程时，可以由一个D2D终端发送D2D终端群组的发现消息，避免了D2D终端群组中的所有终端都发送发现消息而占用较多的时频资源，同时也提高了D2D的发现效率。
在上述技术方案中，优选地，解析所述发现消息的步骤包括：
根据预定义的解析语法解析所述发现消息；或
通过与网络侧设备进行交互，以对所述发现消息进行解析；或
通过与所述其他D2D终端进行通信，以对所述发现消息进行解析。
根据本发明的第四方面，还提出了一种用于终端直连通信的设备发现装置，所述设备发现装置适用于终端，包括：确定单元，用于在所述终端与具有预定位置关系的至少一个D2D终端组成D2D终端群组时，确定所述终端是否能够作为所述D2D终端群组的代理终端；第一发送单元，用于在所述确定单元确定所述终端能够作为所述代理终端时，发送表示所述D2D终端群组的发现消息，以供其他D2D终端在接收到所述发现消息时能够根据所述发现消息同时发现所述D2D终端群组中的所有终端。
在该技术方案中，通过与具有预定位置关系的至少一个D2D终端组成D2D终端群组，并在确定能够作为D2D终端群组的代理终端时，发送表示D2D终端群组的发现消息，以使其他D2D终端在接收到发现消息时能够同时发现D2D终端群组中的所有终端，使得在需要进行D2D发现过程时，可以由一个D2D终端发送D2D终端群组的发现消息，避免了D2D终端群组中的所有终端都发送发现消息而占用较多的时频资源，同时也提高了D2D的发现效率。
在上述技术方案中，优选地，所述确定单元具体用于：向所述至少一个D2D终端发送作为所述代理终端的请求，并在接收到所述至少一个D2D终端反馈的同意指令时，确定所述终端能够作为所述代理终端。具体地，若D2D终端希望作为D2D终端群组代理终端，则需要向D2D终端群组中的其他终端发送请求，并且在D2D终端群组中的其他终端同意时，才能够 作为D2D终端群组的代理终端。
在上述技术方案中，优选地，还包括：接收单元，用于在接收到所述至少一个D2D终端反馈的同意指令后，接收所述至少一个D2D终端中每个D2D终端发送的D2D发现标识；存储单元，用于存储所述每个D2D终端发送的D2D发现标识。
在该技术方案中，通过接收每个D2D终端发送的D2D发现标识，并存储每个D2D终端发送的D2D发现标识，使得能够根据D2D发现标识确定每个D2D终端。
在上述技术方案中，优选地，还包括：处理单元，用于将所述D2D终端群组中的所有D2D终端的D2D发现标识映射为一个虚拟的D2D群组发现标识，或将所述每个D2D终端的D2D发现标识映射为一个虚拟的D2D发现标识。
在该技术方案中，通过将D2D终端群组中的所有D2D终端的D2D发现标识映射为一个虚拟的D2D群组发现标识，或将每个D2D终端的D2D发现标识映射为一个虚拟的D2D发现标识，使得能够保护D2D终端群组或每个D2D终端的隐私。具体地，若D2D业务仅需要具体到某个群组，则可以将所有D2D终端的D2D发现标识映射为一个虚拟的D2D群组发现标识，若D2D业务需要具体到每个D2D终端，则可以将每个D2D终端的D2D发现标识映射为一个虚拟的D2D发现标识。
在上述技术方案中，优选地，还包括：生成单元，用于根据所述D2D终端群组中的所有D2D终端的D2D发现标识、所述D2D终端群组中的D2D终端的数量，以及所述发现消息能够占用的资源数量生成所述发现消息。
在该技术方案中，通过根据所有D2D终端的D2D发现标识、D2D终端群组中的D2D终端数量和发现消息占用的资源数量生成发现消息，使得其他终端在接收到发现消息时，能够通过解析发现消息发现D2D终端群组的相关信息。
在上述技术方案中，优选地，还包括：检测单元，用于检测所述至少一个D2D终端中的每个D2D终端是否离开所述D2D终端群组；更新单元， 用于在所述检测单元检测到所述至少一个D2D终端中的任一D2D终端离开所述D2D终端群组时，更新所述发现消息。
在该技术方案中，通过在检测到任一D2D终端离开D2D终端群组时，更新发现消息，使得发现消息所代表的D2D终端群组的信息时刻处于最新状态，进而确保其他终端在解析发现消息后能够准确确定D2D终端群组的相关信息。
在上述技术方案中，优选地，所述检测单元具体用于：
实时或周期性地向所述每个D2D终端发送询问信号，以根据是否接收到所述每个D2D终端的反馈信息确定所述每个D2D终端是否离开所述D2D终端群组；或
向所述每个D2D终端发送控制信令，以使所述每个的D2D终端在离开所述D2D终端群组时发送通知信息告知所述代理终端；或
根据是否能够接收到所述每个D2D终端反馈的信道测量信息和/或同步信息来确定所述每个D2D终端是否离开所述D2D终端群组。
根据本发明的第五方面，还提出了一种用于终端直连通信的设备发现装置，所述设备发现装置适用于终端，包括：接收单元，用于在所述终端与具有预定位置关系的至少一个D2D终端组成D2D终端群组时，接收所述D2D终端群组中任一D2D终端发送的作为所述D2D终端群组的代理终端的请求消息；发送单元，用于向所述任一D2D终端反馈同意指令，并将所述终端的D2D发现标识发送至所述任一D2D终端，以供所述任一D2D终端生成并发送表示所述D2D终端群组的发现消息。
在该技术方案中，通过与具有预定位置关系的至少一个D2D终端组成D2D终端群组，并向发送请求的D2D终端反馈同意指令和自身的D2D发现标识，使得发送请求的D2D终端能够作为D2D终端的代理终端，以发送表示D2D终端群组的发现消息，供其他D2D终端在接收到发现消息时能够同时发现D2D终端群组中的所有终端，进而使得在需要进行D2D发现过程时，可以由一个D2D终端发送D2D终端群组的发现消息，避免了D2D终端群组中的所有终端都发送发现消息而占用较多的时频资源，同时也提高了D2D的发现效率。
在上述技术方案中，优选地，所述发送单元还用于：在向所述任一D2D终端反馈同意指令后，停止发送与所述D2D终端群组的业务类型相对应的发现信号。具体地，由于在向上述任一D2D终端反馈了同意指令后，D2D终端群组的发现消息都由上述任一D2D终端进行发送，因此无需再发送与该D2D终端群组的业务类型相对应的发现信号。当然，终端可以发送其他业务类型的发现信号。
根据本发明的第六方面，还提出了一种用于终端直连通信的设备发现装置，所述设备发现装置适用于终端，包括：检测单元，用于检测其他D2D终端发送的发现消息；处理单元，用于在根据所述发现消息确定所述其他D2D终端是作为由多个D2D终端组成的D2D终端群组的代理终端时，解析所述发现消息，以同时发现所述D2D终端群组中的所有终端。
在该技术方案中，通过在根据发现消息确定其他D2D终端是作为由多个D2D终端组成的D2D终端群组的代理终端时，解析发现消息，以同时发现D2D终端群组中的所有终端，使得在需要进行D2D发现过程时，可以由一个D2D终端发送D2D终端群组的发现消息，避免了D2D终端群组中的所有终端都发送发现消息而占用较多的时频资源，同时也提高了D2D的发现效率。
在上述技术方案中，优选地，所述处理单元具体用于：根据预定义的解析语法解析所述发现消息；或通过与网络侧设备进行交互，以对所述发现消息进行解析；或通过与所述其他D2D终端进行通信，以对所述发现消息进行解析。
根据本发明的第七方面，还提出了一种终端，所述终端包括通信总线、收发装置、存储器以及处理器，其中：
所述通信总线，用于实现所述收发装置、所述存储器以及所述处理器之间的连接通信；
所述存储器中存储一组程序代码，且所述处理器调用存储器中存储的程序代码，用于执行以下操作：
所述处理器，用于与具有预定位置关系的至少一个D2D终端组成D2D终端群组，并确定是否能够作为所述D2D终端群组的代理终端；
所述处理器，还用于在确定能够作为所述代理终端时，通过所述收发装置发送表示所述D2D终端群组的发现消息，以供其他D2D终端在接收到所述发现消息时能够根据所述发现消息同时发现所述D2D终端群组中的所有终端。
在上述技术方案中，优选地，所述处理器确定是否能够作为所述终端群组的代理终端的步骤具体包括：
向所述至少一个D2D终端发送作为所述代理终端的请求；
在所述收发装置接收到所述至少一个D2D终端反馈的同意指令时，确定能够作为所述代理终端。
在上述技术方案中，优选地，所述收发装置，还用于接收所述至少一个D2D终端中每个D2D终端发送的D2D发现标识；以及
所述处理器，还用于存储所述每个D2D终端发送的D2D发现标识。
在上述技术方案中，优选地，所述处理器，还用于：
将所述D2D终端群组中的所有D2D终端的D2D发现标识映射为一个虚拟的D2D群组发现标识；或
将所述每个D2D终端的D2D发现标识映射为一个虚拟的D2D发现标识。
在上述技术方案中，优选地，所述处理器，还用于：
根据所述D2D终端群组中的所有D2D终端的D2D发现标识、所述D2D终端群组中的D2D终端的数量，以及所述发现消息能够占用的资源数量生成所述发现消息。
在上述技术方案中，优选地，所述处理器，还用于：
检测所述至少一个D2D终端中的每个D2D终端是否离开所述D2D终端群组；
在检测到所述至少一个D2D终端中的任一D2D终端离开所述D2D终端群组时，更新所述发现消息。
在上述技术方案中，优选地，所述处理器检测所述每个D2D终端是否离开所述D2D终端群组的步骤具体包括：
实时或周期性地向所述每个D2D终端发送询问信号，以根据是否接收 到所述每个D2D终端的反馈信息确定所述每个D2D终端是否离开所述D2D终端群组；或
向所述每个D2D终端发送控制信令，以使所述每个的D2D终端在离开所述D2D终端群组时发送通知信息告知所述代理终端；或
根据是否能够接收到所述每个D2D终端反馈的信道测量信息和/或同步信息来确定所述每个D2D终端是否离开所述D2D终端群组。
根据本发明的第八方面，还提出了一种终端，所述终端包括通信总线、收发装置、存储器以及处理器，其中：
所述通信总线，用于实现所述收发装置、所述存储器以及所述处理器之间的连接通信；
所述存储器中存储一组程序代码，且所述收发装置和所述处理器调用存储器中存储的程序代码，用于执行以下操作：
所述处理器，用于与具有预定位置关系的至少一个D2D终端组成D2D终端群组；
所述收发装置，用于接收所述D2D终端群组中任一D2D终端发送的作为所述D2D终端群组的代理终端的请求消息；
所述收发装置，还用于向所述任一D2D终端反馈同意指令，并将自身的D2D发现标识发送至所述任一D2D终端，以供所述任一D2D终端生成并发送表示所述D2D终端群组的发现消息。
在上述技术方案中，优选地，所述收发装置，还用于：
在向所述任一D2D终端反馈同意指令后，停止发送与所述D2D终端群组的业务类型相对应的发现信号。
根据本发明的第九方面，还提出了一种终端，所述终端包括通信总线、收发装置、存储器以及处理器，其中：
所述通信总线，用于实现所述收发装置、所述存储器以及所述处理器之间的连接通信；
所述存储器中存储一组程序代码，且所述收发装置和所述处理器调用存储器中存储的程序代码，用于执行以下操作：
所述处理器，用于检测其他D2D终端发送的发现消息；
所述处理器，还用于在根据所述发现消息确定所述其他D2D终端是作为由多个D2D终端组成的D2D终端群组的代理终端时，解析所述发现消息，以同时发现所述D2D终端群组中的所有终端。
在上述技术方案中，优选地，所述处理器解析所述发现消息的步骤包括：
根据预定义的解析语法解析所述发现消息；或
通过与网络侧设备进行交互，以对所述发现消息进行解析；或
通过与所述其他D2D终端进行通信，以对所述发现消息进行解析。
通过以上技术方案，有效减少了D2D发现过程中占用的时频资源，并且提高了D2D的发现效率。
附图说明
图1示出了根据本发明的第一个实施例的用于终端直连通信的设备发现方法的示意流程图；
图2示出了根据本发明的第一个实施例的用于终端直连通信的设备发现装置的示意框图；
图3示出了根据本发明的第二个实施例的用于终端直连通信的设备发现方法的示意流程图；
图4示出了根据本发明的第二个实施例的用于终端直连通信的设备发现装置的示意框图；
图5示出了根据本发明的第三个实施例的用于终端直连通信的设备发现方法的示意流程图；
图6示出了根据本发明的第三个实施例的用于终端直连通信的设备发现装置的示意框图；
图7示出了根据本发明的实施例的D2D终端群组发现过程示意图；
图8示出了根据本发明的实施例的D2D终端群组的发现过程中的信令交互示意图；
图9示出了根据本发明的第四个实施例的终端的实施例结构示意图；
图10示出了根据本发明的第五个实施例的终端的实施例结构示意图；
图11示出了根据本发明的第六个实施例的终端的实施例结构示意图。
具体实施方式
为了能够更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施方式对本发明进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是，本发明还可以采用其他不同于在此描述的其他方式来实施，因此，本发明的保护范围并不受下面公开的具体实施例的限制。
图1示出了根据本发明的第一个实施例的用于终端直连通信的设备发现方法的示意流程图。
如图1所示，根据本发明的第一个实施例的用于终端直连通信的设备发现方法，所述设备发现方法适用于终端，包括：步骤102，所述终端与具有预定位置关系的至少一个D2D终端组成D2D终端群组，并确定是否能够作为所述D2D终端群组的代理终端；步骤104，在确定能够作为所述代理终端时，所述终端发送表示所述D2D终端群组的发现消息，以供其他D2D终端在接收到所述发现消息时能够根据所述发现消息同时发现所述D2D终端群组中的所有终端。
在该技术方案中，终端通过与具有预定位置关系的至少一个D2D终端组成D2D终端群组，并在确定能够作为D2D终端群组的代理终端时，发送表示D2D终端群组的发现消息，以使其他D2D终端在接收到发现消息时能够同时发现D2D终端群组中的所有终端，使得在需要进行D2D发现过程时，可以由D2D终端群组中的一个D2D终端发送D2D终端群组的发现消息，避免了D2D终端群组中的所有终端都发送发现消息而占用较多的时频资源，同时也提高了D2D的发现效率。
在上述技术方案中，优选地，确定是否能够作为所述终端群组的代理终端的步骤具体包括：所述终端向所述至少一个D2D终端发送作为所述代理终端的请求；在接收到所述至少一个D2D终端反馈的同意指令时，确定能够作为所述代理终端。具体地，若D2D终端期望作为D2D终端群组代 理终端，则需要向D2D终端群组中的其他终端发送请求，并且在D2D终端群组中的其他终端同意时，才能够作为D2D终端群组的代理终端。
在上述技术方案中，优选地，在接收到所述至少一个D2D终端反馈的同意指令后，还包括：接收所述至少一个D2D终端中每个D2D终端发送的D2D发现标识；以及存储所述每个D2D终端发送的D2D发现标识。
在该技术方案中，通过接收上述至少一个D2D终端中的每个D2D终端发送的D2D发现标识，并存储每个D2D终端发送的D2D发现标识，使得能够根据D2D发现标识确定每个D2D终端。
在上述技术方案中，优选地，还包括：将所述D2D终端群组中的所有D2D终端的D2D发现标识映射为一个虚拟的D2D群组发现标识；或将所述每个D2D终端的D2D发现标识映射为一个虚拟的D2D发现标识。
在该技术方案中，通过将D2D终端群组中的所有D2D终端的D2D发现标识映射为一个虚拟的D2D群组发现标识，或将每个D2D终端的D2D发现标识映射为一个虚拟的D2D发现标识，使得能够保护D2D终端群组或每个D2D终端的隐私。具体地，若D2D业务仅需要具体到某个群组，则可以将所有D2D终端的D2D发现标识映射为一个虚拟的D2D群组发现标识，若D2D业务需要具体到每个D2D终端，则可以将每个D2D终端的D2D发现标识映射为一个虚拟的D2D发现标识。
在上述技术方案中，优选地，在发送所述发现消息之前，还包括：根据所述D2D终端群组中的所有D2D终端的D2D发现标识、所述D2D终端群组中的D2D终端的数量，以及所述发现消息能够占用的资源数量生成所述发现消息。
在该技术方案中，通过根据所有D2D终端的D2D发现标识、D2D终端群组中的D2D终端数量和发现消息占用的资源数量生成发现消息，使得其他终端在接收到发现消息时，能够通过解析发现消息发现D2D终端群组的相关信息。
在上述技术方案中，优选地，还包括：检测所述至少一个D2D终端中的每个D2D终端是否离开所述D2D终端群组；在检测到所述至少一个D2D终端中的任一D2D终端离开所述D2D终端群组时，更新所述发现消息。
在该技术方案中，通过在检测到任一D2D终端离开D2D终端群组时，更新发现消息，使得发现消息所代表的D2D终端群组的信息时刻处于最新状态，进而确保其他终端在解析发现消息后能够准确确定D2D终端群组的相关信息。
其中，检测所述每个D2D终端是否离开所述D2D终端群组的步骤具体包括：
实时或周期性地向所述每个D2D终端发送询问信号，以根据是否接收到所述每个D2D终端的反馈信息确定所述每个D2D终端是否离开所述D2D终端群组；或
向所述每个D2D终端发送控制信令，以使所述每个的D2D终端在离开所述D2D终端群组时发送通知信息告知所述代理终端；或
根据是否能够接收到所述每个D2D终端反馈的信道测量信息和/或同步信息来确定所述每个D2D终端是否离开所述D2D终端群组。
图2示出了根据本发明的第一个实施例的用于终端直连通信的设备发现装置的示意框图。
如图2所示，根据本发明的第一个实施例的用于终端直连通信的设备发现装置200，包括：确定单元202和第一发送单元204，其中，所述设备发现装置200适用于终端。
其中，所述确定单元202，用于在所述终端与具有预定位置关系的至少一个D2D终端组成D2D终端群组时，确定所述终端是否能够作为所述D2D终端群组的代理终端；第一发送单元204，用于在所述确定单元202确定所述终端能够作为所述代理终端时，发送表示所述D2D终端群组的发现消息，以供其他D2D终端在接收到所述发现消息时能够根据所述发现消息同时发现所述D2D终端群组中的所有终端。
在该技术方案中，通过与具有预定位置关系的至少一个D2D终端组成D2D终端群组，并在确定能够作为D2D终端群组的代理终端时，发送表示D2D终端群组的发现消息，以使其他D2D终端在接收到发现消息时能够同时发现D2D终端群组中的所有终端，使得在需要进行D2D发现过程时，可以由一个D2D终端发送D2D终端群组的发现消息，避免了D2D终端群 组中的所有终端都发送发现消息而占用较多的时频资源，同时也提高了D2D的发现效率。
在上述技术方案中，优选地，所述确定单元202具体用于：向所述至少一个D2D终端发送作为所述代理终端的请求，并在接收到所述至少一个D2D终端反馈的同意指令时，确定所述终端能够作为所述代理终端。具体地，若D2D终端希望作为D2D终端群组代理终端，则需要向D2D终端群组中的其他终端发送请求，并且在D2D终端群组中的其他终端同意时，才能够作为D2D终端群组的代理终端。
在上述技术方案中，优选地，还包括：接收单元206，用于在接收到所述至少一个D2D终端反馈的同意指令后，接收所述至少一个D2D终端中每个D2D终端发送的D2D发现标识；存储单元208，用于存储所述每个D2D终端发送的D2D发现标识。
在该技术方案中，通过接收每个D2D终端发送的D2D发现标识，并存储每个D2D终端发送的D2D发现标识，使得能够根据D2D发现标识确定每个D2D终端。
在上述技术方案中，优选地，还包括：处理单元210，用于将所述D2D终端群组中的所有D2D终端的D2D发现标识映射为一个虚拟的D2D群组发现标识，或将所述每个D2D终端的D2D发现标识映射为一个虚拟的D2D发现标识。
在该技术方案中，通过将D2D终端群组中的所有D2D终端的D2D发现标识映射为一个虚拟的D2D群组发现标识，或将每个D2D终端的D2D发现标识映射为一个虚拟的D2D发现标识，使得能够保护D2D终端群组或每个D2D终端的隐私。具体地，若D2D业务仅需要具体到某个群组，则可以将所有D2D终端的D2D发现标识映射为一个虚拟的D2D群组发现标识，若D2D业务需要具体到每个D2D终端，则可以将每个D2D终端的D2D发现标识映射为一个虚拟的D2D发现标识。
在上述技术方案中，优选地，还包括：生成单元212，用于根据所述D2D终端群组中的所有D2D终端的D2D发现标识、所述D2D终端群组中的D2D终端的数量，以及所述发现消息能够占用的资源数量生成所述发现 消息。
在该技术方案中，通过根据所有D2D终端的D2D发现标识、D2D终端群组中的D2D终端数量和发现消息占用的资源数量生成发现消息，使得其他终端在接收到发现消息时，能够通过解析发现消息发现D2D终端群组的相关信息。
在上述技术方案中，优选地，还包括：检测单元214，用于检测所述至少一个D2D终端中的每个D2D终端是否离开所述D2D终端群组；更新单元216，用于在所述检测单元214检测到所述至少一个D2D终端中的任一D2D终端离开所述D2D终端群组时，更新所述发现消息。
在该技术方案中，通过在检测到任一D2D终端离开D2D终端群组时，更新发现消息，使得发现消息所代表的D2D终端群组的信息时刻处于最新状态，进而确保其他终端在解析发现消息后能够准确确定D2D终端群组的相关信息。
在上述技术方案中，优选地，所述检测单元214具体用于：
实时或周期性地向所述每个D2D终端发送询问信号，以根据是否接收到所述每个D2D终端的反馈信息确定所述每个D2D终端是否离开所述D2D终端群组；或
向所述每个D2D终端发送控制信令，以使所述每个的D2D终端在离开所述D2D终端群组时发送通知信息告知所述代理终端；或
根据是否能够接收到所述每个D2D终端反馈的信道测量信息和/或同步信息来确定所述每个D2D终端是否离开所述D2D终端群组。
图3示出了根据本发明的第二个实施例的用于终端直连通信的设备发现方法的示意流程图。
如图3所示，根据本发明的第二个实施例的用于终端直连通信的设备发现方法，所述设备发现方法适用于终端，包括：步骤302，所述终端与具有预定位置关系的至少一个D2D终端组成D2D终端群组，并接收所述D2D终端群组中任一D2D终端发送的作为所述D2D终端群组的代理终端的请求消息；步骤304，所述终端向所述任一D2D终端反馈同意指令，并将自身的D2D发现标识发送至所述任一D2D终端，以供所述任一D2D终 端生成并发送表示所述D2D终端群组的发现消息。
在该技术方案中，通过与具有预定位置关系的至少一个D2D终端组成D2D终端群组，并向发送请求的D2D终端反馈同意指令和自身的D2D发现标识，使得发送请求的D2D终端能够作为D2D终端的代理终端，以发送表示D2D终端群组的发现消息，供其他D2D终端在接收到发现消息时能够同时发现D2D终端群组中的所有终端，进而使得在需要进行D2D发现过程时，可以由一个D2D终端发送D2D终端群组的发现消息，避免了D2D终端群组中的所有终端都发送发现消息而占用较多的时频资源，同时也提高了D2D的发现效率。
在上述技术方案中，优选地，还包括：在向所述任一D2D终端反馈同意指令后，停止发送与所述D2D终端群组的业务类型相对应的发现信号。具体地，由于在向上述任一D2D终端反馈了同意指令后，D2D终端群组的发现消息都由上述任一D2D终端进行发送，因此无需再发送与该D2D终端群组的业务类型相对应的发现信号。当然，终端可以发送其他业务类型的发现信号。
图4示出了根据本发明的第二个实施例的用于终端直连通信的设备发现装置的示意框图。
如图4所示，根据本发明的第二个实施例的用于终端直连通信的设备发现装置400，包括：接收单元402和发送单元404，其中，所述设备发现装置400适用于终端。
其中，接收单元404，用于在所述终端与具有预定位置关系的至少一个D2D终端组成D2D终端群组时，接收所述D2D终端群组中任一D2D终端发送的作为所述D2D终端群组的代理终端的请求消息；发送单元404，用于向所述任一D2D终端反馈同意指令，并将所述终端的D2D发现标识发送至所述任一D2D终端，以供所述任一D2D终端生成并发送表示所述D2D终端群组的发现消息。
在该技术方案中，通过与具有预定位置关系的至少一个D2D终端组成D2D终端群组，并向发送请求的D2D终端反馈同意指令和自身的D2D发现标识，使得发送请求的D2D终端能够作为D2D终端的代理终端，以发 送表示D2D终端群组的发现消息，供其他D2D终端在接收到发现消息时能够同时发现D2D终端群组中的所有终端，进而使得在需要进行D2D发现过程时，可以由一个D2D终端发送D2D终端群组的发现消息，避免了D2D终端群组中的所有终端都发送发现消息而占用较多的时频资源，同时也提高了D2D的发现效率。
在上述技术方案中，优选地，所述发送单元404还用于：在向所述任一D2D终端反馈同意指令后，停止发送与所述D2D终端群组的业务类型相对应的发现信号。具体地，由于在向上述任一D2D终端反馈了同意指令后，D2D终端群组的发现消息都由上述任一D2D终端进行发送，因此无需再发送与该D2D终端群组的业务类型相对应的发现信号。当然，终端可以发送其他业务类型的发现信号。
图5示出了根据本发明的第三个实施例的用于终端直连通信的设备发现方法的示意流程图。
如图5所示，根据本发明的第三个实施例的用于终端直连通信的设备发现方法，所述设备发现方法适用于终端，包括：步骤502，所述终端检测其他D2D终端发送的发现消息；步骤504，所述终端在根据所述发现消息确定所述其他D2D终端是作为由多个D2D终端组成的D2D终端群组的代理终端时，解析所述发现消息，以同时发现所述D2D终端群组中的所有终端。
在该技术方案中，通过在根据发现消息确定其他D2D终端是作为由多个D2D终端组成的D2D终端群组的代理终端时，解析发现消息，以同时发现D2D终端群组中的所有终端，使得在需要进行D2D发现过程时，可以由一个D2D终端发送D2D终端群组的发现消息，避免了D2D终端群组中的所有终端都发送发现消息而占用较多的时频资源，同时也提高了D2D的发现效率。
在上述技术方案中，优选地，解析所述发现消息的步骤包括：
根据预定义的解析语法解析所述发现消息；或
通过与网络侧设备进行交互，以对所述发现消息进行解析；或
通过与所述其他D2D终端进行通信，以对所述发现消息进行解析。
图6示出了根据本发明的第三个实施例的用于终端直连通信的设备发现装置的示意框图。
如图6所示，根据本发明的第三个实施例的用于终端直连通信的设备发现装置600，包括：检测单元602和处理单元604，其中，所述设备发现装置600适用于终端。
其中，检测单元602，用于检测其他D2D终端发送的发现消息；处理单元604，用于在根据所述发现消息确定所述其他D2D终端是作为由多个D2D终端组成的D2D终端群组的代理终端时，解析所述发现消息，以同时发现所述D2D终端群组中的所有终端。
在该技术方案中，通过在根据发现消息确定其他D2D终端是作为由多个D2D终端组成的D2D终端群组的代理终端时，解析发现消息，以同时发现D2D终端群组中的所有终端，使得在需要进行D2D发现过程时，可以由一个D2D终端发送D2D终端群组的发现消息，避免了D2D终端群组中的所有终端都发送发现消息而占用较多的时频资源，同时也提高了D2D的发现效率。
在上述技术方案中，优选地，所述处理单元604具体用于：根据预定义的解析语法解析所述发现消息；或通过与网络侧设备进行交互，以对所述发现消息进行解析；或通过与所述其他D2D终端进行通信，以对所述发现消息进行解析。
本发明还提出了一种终端，包括：如图2中所示的用于终端直连通信的设备发现装置200；和/或如图4中所示的用于终端直连通信的设备发现装置400；和/或如图6中所示的用于终端直连通信的设备发现装置600。
以下结合图7至图8详细说明本发明的技术方案。
本发明的技术方案主要是利用D2D的群组特性来提高发现效率，适用于有网络覆盖和没有网络覆盖的场景。
由于本发明主要涉及RAN侧的协议机制，因此需要说明一下本发明的技术方案对CN侧的假设。本发明假设网络侧在高层进行D2D群组的管理，终端能够根据另一个终端的标识判别是否属于一个群组。在没有网络覆盖的场景下，终端也能够根据预配置的信息如群组ID来判别被发现的UE是 否属于一个群组内。
本发明的主要思想可以概括如下：对于特定区域内已经进行了彼此发现或者借助之前的D2D通信建立了预先关联的终端，可以由其中一个终端承担Discovery Proxy(发现代理)角色。该终端和其他选择其为代理的终端之间具有基于静态签约信息或者基于应用驱动的信任关系。即，在完成代理的选择和确认后，只要仍然保持一定的邻近关系，则D2D发现消息的发送由代理结点发送。接收到D2D发现消息的UE(User equipment，用户设备)可以根据收到的D2D发现消息一次性发现多个D2D终端。
如图7所示，执行发现过程的UE(Monitoring UE)在收到代理UE(Proxy UE)发来的代表特定群组的发现消息后，通过解析该消息来获知多个D2DUE及多个D2D UE当前运行的应用程序信息。
其中，发现过程的信令流程如图8所示，D2D群组中的UE与代理UE进行代理确认，即选择出作为代理的UE，作为代理的UE在必要时可以与CN节点进行交互。在发送发现消息时，代理UE可以发送D2D群组发现消息，以使执行发现过程的UE同时发现多个D2D终端。
具体地，在本发明的技术方案中，引入了Discovery Proxy的发现和确定机制。Discovery Proxy是高密度D2D终端场景下通过实现层次化组织来实现高效率D2D发现的手段。
其中，在特定区域内的某个终端如果希望承担该角色，可以通过在D2D现有discovery信道上发送该信息。其他D2D终端可以选择是否选择该终端作为Proxy。如果同意，则发送确定消息，将向网络请求分配到的D2D发现标识或者预配置的D2D发现标识发送给作为Proxy的终端。
为了解决D2D发现标识的隐私保护问题，所有的UE可以根据特定的算法将标识进行映射。该映射得到的新标识与原有标识可能具有一对一或一对多的对应关系，并且该映射关系可以在接收端UE或者通过与网络侧的交互进行解析。具体地，一对一映射适用于D2D发现业务需要具体到某个UE的情形，而一对多映射则适用于D2D发现业务只需要具体到某个群组的情形。比如，如果D2D发现的目的是向特定范围内的用户推送基于该群组潜在消费意向的优惠券信息，则不需要具体到某个用户，只需要向某 个群组即可。
作为Proxy结点的终端在维护群组内UE的可达性信息时，可以通过周期性检测，也可以让离开群组的UE主动告知Proxy结点。为了减少信令的复合，如果是周期性检测，应该尽可能采用大的时间周期。也可以利用D2D的其他信息，如信道测量，同步等过程检测可达性，不需要再次触发D2D发现过程。
以下详细介绍本发明提出的D2D群组发现消息的构建和发送机制：
与3GPP已经定义的发现机制不同，本发明提出的群组发现机制的UE发送的D2D发现消息代表了位于特定区域的多个UE。根据群组内UE的统计驻留时间特性和终端密度，该发现消息能代表的UE的数量可能有比较大的数量范围。在进行Proxy确认后，D2D终端群组中的其他终端可以选择不再发送D2D发现信号，除非有其他非群组业务的需求需要触发时再进行发送。
群组发现消息的构建是根据映射得到的多个UE的标识来进行的。具体可以根据发现资源的可用性和UE的数量来生成发现标识。该群组发现标识未经加密的内容可以是应用层级别的，例如可以构建下述的群组发现消息：Cardgamefans#100.outlet.xuanwumenarea@beijing，该群组发现消息表示北京市宣武门地区的一个“outlet”内有100个想一起玩卡片游戏的D2D用户，该群组发现消息是否需要加密后再发送取决于大多数UE进行D2D发现时的配置信息。
以下详细介绍Discovery消息的解析过程。
解析方式一：采用统一的标识解析语法可以帮助接收端UE解析该群组发现消息。这种应用层的语法可以不在3GPP规范里中定义，可以使用XML机制，以保证对终端D2D业务的互操作性。
解析方式二：接收端UE在收到该信息后，如果对该群组感兴趣，可以通过网络侧解析该群组Proxy结点的信息，以进行后续的D2D业务。需要说明的是，如果是没有网络覆盖的场景，接收端UE只能通过与Proxy结点的交互来进行解析。接收端UE可能只能与组内的部分UE进行直接的D2D通信，而不能直接到达的UE，可能需要借助UE中继的方法进行通信。
本发明的技术方案使得具有cluster header的D2D群组终端能够提高D2D发现效率，适用于3GPP LTE后续增强版本以及未来5G系统中的D2D终端密度加大的场景，能够减少不必要的D2D发现消息的发送和资源占用，提高系统的运行效率。
图9示出了根据本发明的第四个实施例的终端的实施例结构示意图。如图9所示，所述终端可以包括：至少一个收发装置503，至少一个处理器501，例如CPU，存储器504和至少一个通信总线502。
其中，上述通信总线502用于连接上述收发装置503、处理器501和存储器504。
上述存储器504可以是高速RAM存储器，也可为非不稳定的存储器(non-volatile memory)，例如磁盘存储器。上述存储器504还用于存储一组程序代码，上述收发装置503和处理器501用于调用存储器504中存储的程序代码，执行如下操作：
所述处理器501，用于与具有预定位置关系的至少一个D2D终端组成D2D终端群组，并确定是否能够作为所述D2D终端群组的代理终端；
所述处理器501，还用于在确定能够作为所述代理终端时，通过所述收发装置503发送表示所述D2D终端群组的发现消息，以供其他D2D终端在接收到所述发现消息时能够根据所述发现消息同时发现所述D2D终端群组中的所有终端。
在上述技术方案中，优选地，所述处理器501确定是否能够作为所述终端群组的代理终端的步骤具体包括：
向所述至少一个D2D终端发送作为所述代理终端的请求；
在所述收发装置503接收到所述至少一个D2D终端反馈的同意指令时，确定能够作为所述代理终端。
在上述技术方案中，优选地，所述收发装置503，还用于接收所述至少一个D2D终端中每个D2D终端发送的D2D发现标识；以及
所述处理器501，还用于存储所述每个D2D终端发送的D2D发现标识。
在上述技术方案中，优选地，所述处理器501，还用于：
将所述D2D终端群组中的所有D2D终端的D2D发现标识映射为一个 虚拟的D2D群组发现标识；或
将所述每个D2D终端的D2D发现标识映射为一个虚拟的D2D发现标识。
在上述技术方案中，优选地，所述处理器501，还用于：
根据所述D2D终端群组中的所有D2D终端的D2D发现标识、所述D2D终端群组中的D2D终端的数量，以及所述发现消息能够占用的资源数量生成所述发现消息。
在上述技术方案中，优选地，所述处理器501，还用于：
检测所述至少一个D2D终端中的每个D2D终端是否离开所述D2D终端群组；
在检测到所述至少一个D2D终端中的任一D2D终端离开所述D2D终端群组时，更新所述发现消息。
在上述技术方案中，优选地，所述处理器501检测所述每个D2D终端是否离开所述D2D终端群组的步骤具体包括：
实时或周期性地向所述每个D2D终端发送询问信号，以根据是否接收到所述每个D2D终端的反馈信息确定所述每个D2D终端是否离开所述D2D终端群组；或
向所述每个D2D终端发送控制信令，以使所述每个的D2D终端在离开所述D2D终端群组时发送通知信息告知所述代理终端；或
根据是否能够接收到所述每个D2D终端反馈的信道测量信息和/或同步信息来确定所述每个D2D终端是否离开所述D2D终端群组。
图10示出了根据本发明的第五个实施例的终端的实施例结构示意图。如图10所示，所述终端可以包括：至少一个收发装置603，至少一个处理器601，例如CPU，存储器604和至少一个通信总线602。
其中，上述通信总线602用于连接上述收发装置603、处理器601和存储器604。
上述存储器604可以是高速RAM存储器，也可为非不稳定的存储器(non-volatile memory)，例如磁盘存储器。上述存储器604还用于存储一组程 序代码，上述收发装置603和处理器601用于调用存储器604中存储的程序代码，执行如下操作：
所述处理器601，用于与具有预定位置关系的至少一个D2D终端组成D2D终端群组；
所述收发装置603，用于接收所述D2D终端群组中任一D2D终端发送的作为所述D2D终端群组的代理终端的请求消息；
所述收发装置603，还用于向所述任一D2D终端反馈同意指令，并将自身的D2D发现标识发送至所述任一D2D终端，以供所述任一D2D终端生成并发送表示所述D2D终端群组的发现消息。
在上述技术方案中，优选地，所述收发装置603，还用于：
在向所述任一D2D终端反馈同意指令后，停止发送与所述D2D终端群组的业务类型相对应的发现信号。
图11示出了根据本发明的第六个实施例的终端的实施例结构示意图。如图11所示，所述终端可以包括：至少一个收发装置703，至少一个处理器701，例如CPU，存储器704和至少一个通信总线702。
其中，上述通信总线702用于连接上述收发装置703、处理器701和存储器704。
上述存储器704可以是高速RAM存储器，也可为非不稳定的存储器(non-volatile memory)，例如磁盘存储器。上述存储器704还用于存储一组程序代码，上述收发装置703和处理器701用于调用存储器704中存储的程序代码，执行如下操作：
所述处理器701，用于检测其他D2D终端发送的发现消息；
所述处理器701，还用于在根据所述发现消息确定所述其他D2D终端是作为由多个D2D终端组成的D2D终端群组的代理终端时，解析所述发现消息，以同时发现所述D2D终端群组中的所有终端。
在上述技术方案中，优选地，所述处理器701解析所述发现消息的步骤包括：
根据预定义的解析语法解析所述发现消息；或
通过与网络侧设备进行交互，以对所述发现消息进行解析；或
通过与所述其他D2D终端进行通信，以对所述发现消息进行解析。
以上结合附图详细说明了本发明的技术方案，提出了一种新的用于终端直连通信的设备发现方案，有效减少了D2D发现过程中占用的时频资源，并且提高了D2D的发现效率。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (33)

  1. 一种用于终端直连通信的设备发现方法，适用于终端，其特征在于，包括：
    所述终端与具有预定位置关系的至少一个D2D终端组成D2D终端群组，并确定是否能够作为所述D2D终端群组的代理终端；
    在确定能够作为所述代理终端时，所述终端发送表示所述D2D终端群组的发现消息，以供其他D2D终端在接收到所述发现消息时能够根据所述发现消息同时发现所述D2D终端群组中的所有终端。
  2. 根据权利要求1所述的用于终端直连通信的设备发现方法，其特征在于，确定是否能够作为所述终端群组的代理终端的步骤具体包括：
    所述终端向所述至少一个D2D终端发送作为所述代理终端的请求；
    在接收到所述至少一个D2D终端反馈的同意指令时，确定能够作为所述代理终端。
  3. 根据权利要求2所述的用于终端直连通信的设备发现方法，其特征在于，在接收到所述至少一个D2D终端反馈的同意指令后，还包括：
    接收所述至少一个D2D终端中每个D2D终端发送的D2D发现标识；以及
    存储所述每个D2D终端发送的D2D发现标识。
  4. 根据权利要求3所述的用于终端直连通信的设备发现方法，其特征在于，还包括：
    将所述D2D终端群组中的所有D2D终端的D2D发现标识映射为一个虚拟的D2D群组发现标识；或
    将所述每个D2D终端的D2D发现标识映射为一个虚拟的D2D发现标识。
  5. 根据权利要求3所述的用于终端直连通信的设备发现方法，其特征在于，在发送所述发现消息之前，还包括：
    根据所述D2D终端群组中的所有D2D终端的D2D发现标识、所述D2D终端群组中的D2D终端的数量，以及所述发现消息能够占用的资源数 量生成所述发现消息。
  6. 根据权利要求1至5中任一项所述的用于终端直连通信的设备发现方法，其特征在于，还包括：
    检测所述至少一个D2D终端中的每个D2D终端是否离开所述D2D终端群组；
    在检测到所述至少一个D2D终端中的任一D2D终端离开所述D2D终端群组时，更新所述发现消息。
  7. 根据权利要求6所述的用于终端直连通信的设备发现方法，其特征在于，检测所述每个D2D终端是否离开所述D2D终端群组的步骤具体包括：
    实时或周期性地向所述每个D2D终端发送询问信号，以根据是否接收到所述每个D2D终端的反馈信息确定所述每个D2D终端是否离开所述D2D终端群组；或
    向所述每个D2D终端发送控制信令，以使所述每个的D2D终端在离开所述D2D终端群组时发送通知信息告知所述代理终端；或
    根据是否能够接收到所述每个D2D终端反馈的信道测量信息和/或同步信息来确定所述每个D2D终端是否离开所述D2D终端群组。
  8. 一种用于终端直连通信的设备发现方法，适用于终端，其特征在于，包括：
    所述终端与具有预定位置关系的至少一个D2D终端组成D2D终端群组，并接收所述D2D终端群组中任一D2D终端发送的作为所述D2D终端群组的代理终端的请求消息；
    所述终端向所述任一D2D终端反馈同意指令，并将自身的D2D发现标识发送至所述任一D2D终端，以供所述任一D2D终端生成并发送表示所述D2D终端群组的发现消息。
  9. 根据权利要求8所述的用于终端直连通信的设备发现方法，其特征在于，还包括：
    在向所述任一D2D终端反馈同意指令后，停止发送与所述D2D终端群组的业务类型相对应的发现信号。
  10. 一种用于终端直连通信的设备发现方法，适用于终端，其特征在于，包括：
    所述终端检测其他D2D终端发送的发现消息；
    所述终端在根据所述发现消息确定所述其他D2D终端是作为由多个D2D终端组成的D2D终端群组的代理终端时，解析所述发现消息，以同时发现所述D2D终端群组中的所有终端。
  11. 根据权利要求10所述的用于终端直连通信的设备发现方法，其特征在于，解析所述发现消息的步骤包括：
    根据预定义的解析语法解析所述发现消息；或
    通过与网络侧设备进行交互，以对所述发现消息进行解析；或
    通过与所述其他D2D终端进行通信，以对所述发现消息进行解析。
  12. 一种用于终端直连通信的设备发现装置，适用于终端，其特征在于，包括：
    确定单元，用于在所述终端与具有预定位置关系的至少一个D2D终端组成D2D终端群组时，确定所述终端是否能够作为所述D2D终端群组的代理终端；
    第一发送单元，用于在所述确定单元确定所述终端能够作为所述代理终端时，发送表示所述D2D终端群组的发现消息，以供其他D2D终端在接收到所述发现消息时能够根据所述发现消息同时发现所述D2D终端群组中的所有终端。
  13. 根据权利要求12所述的用于终端直连通信的设备发现装置，其特征在于，所述确定单元具体用于：
    向所述至少一个D2D终端发送作为所述代理终端的请求，并在接收到所述至少一个D2D终端反馈的同意指令时，确定所述终端能够作为所述代理终端。
  14. 根据权利要求13所述的用于终端直连通信的设备发现装置，其特征在于，还包括：
    接收单元，用于在接收到所述至少一个D2D终端反馈的同意指令后，接收所述至少一个D2D终端中每个D2D终端发送的D2D发现标识；
    存储单元，用于存储所述每个D2D终端发送的D2D发现标识。
  15. 根据权利要求14所述的用于终端直连通信的设备发现装置，其特征在于，还包括：
    处理单元，用于将所述D2D终端群组中的所有D2D终端的D2D发现标识映射为一个虚拟的D2D群组发现标识，或
    将所述每个D2D终端的D2D发现标识映射为一个虚拟的D2D发现标识。
  16. 根据权利要求14所述的用于终端直连通信的设备发现装置，其特征在于，还包括：
    生成单元，用于根据所述D2D终端群组中的所有D2D终端的D2D发现标识、所述D2D终端群组中的D2D终端的数量，以及所述发现消息能够占用的资源数量生成所述发现消息。
  17. 根据权利要求12至16中任一项所述的用于终端直连通信的设备发现装置，其特征在于，还包括：
    检测单元，用于检测所述至少一个D2D终端中的每个D2D终端是否离开所述D2D终端群组；
    更新单元，用于在所述检测单元检测到所述至少一个D2D终端中的任一D2D终端离开所述D2D终端群组时，更新所述发现消息。
  18. 根据权利要求17所述的用于终端直连通信的设备发现装置，其特征在于，所述检测单元具体用于：
    实时或周期性地向所述每个D2D终端发送询问信号，以根据是否接收到所述每个D2D终端的反馈信息确定所述每个D2D终端是否离开所述D2D终端群组；或
    向所述每个D2D终端发送控制信令，以使所述每个的D2D终端在离开所述D2D终端群组时发送通知信息告知所述代理终端；或
    根据是否能够接收到所述每个D2D终端反馈的信道测量信息和/或同步信息来确定所述每个D2D终端是否离开所述D2D终端群组。
  19. 一种用于终端直连通信的设备发现装置，适用于终端，其特征在于，包括：
    接收单元，用于在所述终端与具有预定位置关系的至少一个D2D终端组成D2D终端群组时，接收所述D2D终端群组中任一D2D终端发送的作为所述D2D终端群组的代理终端的请求消息；
    发送单元，用于向所述任一D2D终端反馈同意指令，并将所述终端的D2D发现标识发送至所述任一D2D终端，以供所述任一D2D终端生成并发送表示所述D2D终端群组的发现消息。
  20. 根据权利要求19所述的用于终端直连通信的设备发现装置，其特征在于，所述发送单元还用于：
    在向所述任一D2D终端反馈同意指令后，停止发送与所述D2D终端群组的业务类型相对应的发现信号。
  21. 一种用于终端直连通信的设备发现装置，适用于终端，其特征在于，包括：
    检测单元，用于检测其他D2D终端发送的发现消息；
    处理单元，用于在根据所述发现消息确定所述其他D2D终端是作为由多个D2D终端组成的D2D终端群组的代理终端时，解析所述发现消息，以同时发现所述D2D终端群组中的所有终端。
  22. 根据权利要求21所述的用于终端直连通信的设备发现装置，其特征在于，所述处理单元具体用于：
    根据预定义的解析语法解析所述发现消息；或
    通过与网络侧设备进行交互，以对所述发现消息进行解析；或
    通过与所述其他D2D终端进行通信，以对所述发现消息进行解析。
  23. 一种终端，其特征在于，包括：所述终端包括通信总线、收发装置、存储器以及处理器，其中：
    所述通信总线，用于实现所述收发装置、所述存储器以及所述处理器之间的连接通信；
    所述存储器中存储一组程序代码，且所述处理器调用存储器中存储的程序代码，用于执行以下操作：
    所述处理器，用于与具有预定位置关系的至少一个D2D终端组成D2D终端群组，并确定是否能够作为所述D2D终端群组的代理终端；
    所述处理器，还用于在确定能够作为所述代理终端时，通过所述收发装置发送表示所述D2D终端群组的发现消息，以供其他D2D终端在接收到所述发现消息时能够根据所述发现消息同时发现所述D2D终端群组中的所有终端。
  24. 根据权利要求23所述的终端，其特征在于，所述处理器确定是否能够作为所述终端群组的代理终端的步骤具体包括：
    向所述至少一个D2D终端发送作为所述代理终端的请求；
    在所述收发装置接收到所述至少一个D2D终端反馈的同意指令时，确定能够作为所述代理终端。
  25. 根据权利要求24所述的终端，其特征在于，
    所述收发装置，还用于接收所述至少一个D2D终端中每个D2D终端发送的D2D发现标识；以及
    所述处理器，还用于存储所述每个D2D终端发送的D2D发现标识。
  26. 根据权利要求25所述的终端，其特征在于，所述处理器，还用于：
    将所述D2D终端群组中的所有D2D终端的D2D发现标识映射为一个虚拟的D2D群组发现标识；或
    将所述每个D2D终端的D2D发现标识映射为一个虚拟的D2D发现标识。
  27. 根据权利要求25所述的终端，其特征在于，所述处理器，还用于：
    根据所述D2D终端群组中的所有D2D终端的D2D发现标识、所述D2D终端群组中的D2D终端的数量，以及所述发现消息能够占用的资源数量生成所述发现消息。
  28. 根据权利要求23-27任一项所述的终端，其特征在于，所述处理器，还用于：
    检测所述至少一个D2D终端中的每个D2D终端是否离开所述D2D终端群组；
    在检测到所述至少一个D2D终端中的任一D2D终端离开所述D2D终端群组时，更新所述发现消息。
  29. 根据权利要求28所述的终端，其特征在于，所述处理器检测所述 每个D2D终端是否离开所述D2D终端群组的步骤具体包括：
    实时或周期性地向所述每个D2D终端发送询问信号，以根据是否接收到所述每个D2D终端的反馈信息确定所述每个D2D终端是否离开所述D2D终端群组；或
    向所述每个D2D终端发送控制信令，以使所述每个的D2D终端在离开所述D2D终端群组时发送通知信息告知所述代理终端；或
    根据是否能够接收到所述每个D2D终端反馈的信道测量信息和/或同步信息来确定所述每个D2D终端是否离开所述D2D终端群组。
  30. 一种终端，其特征在于，包括：所述终端包括通信总线、收发装置、存储器以及处理器，其中：
    所述通信总线，用于实现所述收发装置、所述存储器以及所述处理器之间的连接通信；
    所述存储器中存储一组程序代码，且所述收发装置和所述处理器调用存储器中存储的程序代码，用于执行以下操作：
    所述处理器，用于与具有预定位置关系的至少一个D2D终端组成D2D终端群组；
    所述收发装置，用于接收所述D2D终端群组中任一D2D终端发送的作为所述D2D终端群组的代理终端的请求消息；
    所述收发装置，还用于向所述任一D2D终端反馈同意指令，并将自身的D2D发现标识发送至所述任一D2D终端，以供所述任一D2D终端生成并发送表示所述D2D终端群组的发现消息。
  31. 根据权利要求30所述的终端，其特征在于，所述收发装置，还用于：
    在向所述任一D2D终端反馈同意指令后，停止发送与所述D2D终端群组的业务类型相对应的发现信号。
  32. 一种终端，其特征在于，包括：所述终端包括通信总线、收发装置、存储器以及处理器，其中：
    所述通信总线，用于实现所述收发装置、所述存储器以及所述处理器之间的连接通信；
    所述存储器中存储一组程序代码，且所述收发装置和所述处理器调用存储器中存储的程序代码，用于执行以下操作：
    所述处理器，用于检测其他D2D终端发送的发现消息；
    所述处理器，还用于在根据所述发现消息确定所述其他D2D终端是作为由多个D2D终端组成的D2D终端群组的代理终端时，解析所述发现消息，以同时发现所述D2D终端群组中的所有终端。
  33. 根据权利要求32所述的终端，其特征在于，所述处理器解析所述发现消息的步骤包括：
    根据预定义的解析语法解析所述发现消息；或
    通过与网络侧设备进行交互，以对所述发现消息进行解析；或
    通过与所述其他D2D终端进行通信，以对所述发现消息进行解析。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112235773A (zh) * 2020-11-02 2021-01-15 深圳市中诺通讯有限公司 一种基于5g d2d技术的直连通信方式

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9894648B2 (en) * 2016-03-01 2018-02-13 Wipro Limited Methods and systems for providing device to device proximity services in wireless communication networks
CN108834107B (zh) * 2017-05-05 2020-12-18 上海诺基亚贝尔股份有限公司 用于旁链路发现的方法和设备
CN110139340A (zh) * 2018-02-09 2019-08-16 电信科学技术研究院有限公司 一种连接建立方法及终端
CN116938672B (zh) * 2023-09-18 2024-02-23 中国电信股份有限公司 任务模型分发方法、装置、计算机设备、介质及产品

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104185281A (zh) * 2013-05-22 2014-12-03 电信科学技术研究院 一种d2d通信中的资源配置及资源使用方法和装置
WO2015016690A1 (ko) * 2013-08-02 2015-02-05 엘지전자 주식회사 디스커버리 과정의 수행 방법 및 이를 위한 장치
CN104427582A (zh) * 2013-08-23 2015-03-18 北京三星通信技术研究有限公司 一种实现d2d终端相互发现的方法和终端
CN104519550A (zh) * 2013-09-26 2015-04-15 中兴通讯股份有限公司 一种发现d2d设备的方法、装置及系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101355390B (zh) * 2008-08-12 2011-08-10 武汉大学 水下传感器网络高时间分辨率数据虚拟簇收集方法
CN101355496A (zh) * 2008-08-12 2009-01-28 武汉大学 基站发起的多跳分簇路由协议
KR100972081B1 (ko) * 2008-09-24 2010-07-22 주식회사 케이티 무선노드의 이동성을 지원하는 위치인식 메시징 방법
CN101835237B (zh) * 2010-05-14 2013-06-05 南京邮电大学 一种无线传感器网络中的数据融合方法
CN104081796A (zh) * 2011-12-02 2014-10-01 高通股份有限公司 用于机器对机器设备的基于群组的接入控制的系统和方法
US9578635B2 (en) * 2012-09-28 2017-02-21 Intel Corporation Method and apparatus for autonomous cluster head selection for machine-type-communications (MTC)
CN103906266A (zh) * 2012-12-31 2014-07-02 中兴通讯股份有限公司 无线通信方法、用户设备、网络设备及系统
CN104105155B (zh) * 2013-04-01 2019-07-16 中兴通讯股份有限公司 接收设备发现信息、发送设备发现信息的方法和用户设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104185281A (zh) * 2013-05-22 2014-12-03 电信科学技术研究院 一种d2d通信中的资源配置及资源使用方法和装置
WO2015016690A1 (ko) * 2013-08-02 2015-02-05 엘지전자 주식회사 디스커버리 과정의 수행 방법 및 이를 위한 장치
CN104427582A (zh) * 2013-08-23 2015-03-18 北京三星通信技术研究有限公司 一种实现d2d终端相互发现的方法和终端
CN104519550A (zh) * 2013-09-26 2015-04-15 中兴通讯股份有限公司 一种发现d2d设备的方法、装置及系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112235773A (zh) * 2020-11-02 2021-01-15 深圳市中诺通讯有限公司 一种基于5g d2d技术的直连通信方式
CN112235773B (zh) * 2020-11-02 2023-09-01 深圳市中诺通讯有限公司 一种基于5g d2d技术的直连通信方法

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