WO2017084077A1 - 设备发现的方法和设备 - Google Patents

设备发现的方法和设备 Download PDF

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Publication number
WO2017084077A1
WO2017084077A1 PCT/CN2015/095071 CN2015095071W WO2017084077A1 WO 2017084077 A1 WO2017084077 A1 WO 2017084077A1 CN 2015095071 W CN2015095071 W CN 2015095071W WO 2017084077 A1 WO2017084077 A1 WO 2017084077A1
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WIPO (PCT)
Prior art keywords
wireless access
message
access device
communication service
discovery
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PCT/CN2015/095071
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English (en)
French (fr)
Inventor
张弛
周国华
魏冬冬
王轶
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2015/095071 priority Critical patent/WO2017084077A1/zh
Publication of WO2017084077A1 publication Critical patent/WO2017084077A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup

Definitions

  • the present invention relates to the field of communications, and more particularly to a method of device discovery, a first D2D device, a second D2D device, and a wireless access device.
  • D2D device to device
  • some D2D devices eg, wearable devices
  • D2D devices eg, mobile devices
  • Data transmission with wireless access devices such as cellular wireless access devices and wireless local area network access points.
  • wireless access devices such as cellular wireless access devices and wireless local area network access points.
  • these D2D devices are usually bound to the user's mobile device, and if the user's mobile device is not around, the data cannot be transmitted with the wireless access device.
  • one D2D device finds another D2D device (set as the second D2D device).
  • the first mode is that the second D2D device sends the announcement message by means of broadcast, and if the first D2D device receives the announcement message, it is considered that the second D2D device is found.
  • the second method is that the first D2D device sends a discovery message by means of a broadcast, and if the second D2D device receives the discovery message and sends a response message to the first D2D device, when the first D2D device receives the response message, The first D2D device considers that the second D2D device is found.
  • the second D2D device discovered by the first D2D device cannot guarantee the communication quality between the first D2D device and the wireless access device.
  • the embodiments of the present invention provide a device discovery method and device, which can improve communication quality between a first D2D device and a wireless access device.
  • a method for device discovery comprising:
  • the first D2D device sends a discovery message, where the discovery message is used to trigger the second D2D device to send a report message to the wireless access device, where the report message is used by the wireless access device to determine that the first D2D device is provided with the wireless device.
  • a D2D device that accesses the communication service of the device;
  • the discovery message includes an identifier of the first D2D device.
  • the reporting message includes a channel between the first D2D device and the second D2D device At least one of quality, an identification of the first D2D device, and an identification of the second D2D device.
  • the third possible implementation of the first aspect further includes:
  • the first D2D device Before the first D2D device sends the discovery message, the first D2D device receives an announcement message sent by the second D2D device, where the announcement message is used to notify the first D2D device of the existence of the second D2D device;
  • the first D2D device sends the discovery message, including:
  • the first D2D device sends the discovery message to the second D2D device according to the announcement message.
  • the announcement message includes the first power level information that the second D2D device sends the announcement message
  • the method further includes: the first D2D device determining second power level information for receiving the announcement message;
  • the first D2D device sends the discovery message to the second D2D device according to the announcement message, including:
  • the second D2D device Determining, by the first D2D device, the second D2D device as a D2D device candidate capable of providing communication service with the wireless access device for the first D2D device according to the first power level information and the second power level information, and Sending the discovery message to the second D2D device, where the discovery message includes the identifier of the second D2D device.
  • the control message further includes a physical resource occupied by the D2D device that provides the first D2D device with a communication service with the wireless access device, and provides the first D2D device with the physical resource The group ID of the group in which the D2D device of the communication service of the wireless access device is located.
  • a method for device discovery including:
  • the second D2D device receives the discovery message sent by the first D2D device, where the discovery message is used to trigger the second D2D device to send a report message to the wireless access device, where the report message is used by the wireless access device to determine a D2D device that provides a communication service with the wireless access device;
  • the second D2D device sends the report message to the wireless access device according to the discovery message
  • the second D2D device receives a control message sent by the wireless access device, where the control message includes indication information indicating the D2D device that provides communication service with the wireless access device for the first D2D device.
  • the discovery message includes an identifier of the first D2D device.
  • the reporting message includes a channel between the first D2D device and the second D2D device At least one of quality, identification of the first D2D device, and identification of the second D2D device.
  • the third possible implementation in the second aspect further includes:
  • the second D2D device Before the first D2D device sends the discovery message, the second D2D device sends an announcement message to the first D2D device, where the announcement message is used to notify the first D2D device of the existence of the second D2D device;
  • the second D2D device receives the discovery message sent by the first D2D device according to the announcement message.
  • the announcement message includes the first power level information that the second D2D device sends the announcement message
  • the second D2D device receives the discovery message that is sent by the first D2D device according to the announcement message, and includes:
  • Receiving the first D2D device according to the first power level information and the second D2D device Determining, by the second power level information of the announcement message, that the second D2D device is a D2D device candidate capable of providing the first D2D device with a communication service with the wireless access device, the second D2D device receiving the first The discovery message sent by the D2D device, where the discovery message includes the identifier of the second D2D device.
  • the control message further includes a physical resource occupied by the D2D device that provides the first D2D device with the communication service of the wireless access device, and a D2D that provides the first D2D device with the communication service of the wireless access device.
  • control message further includes activation information, where the activation information is used to indicate that the D2D device that provides the first D2D device with the communication service of the wireless access device starts to provide the first D2D device with the wireless access device. Communication service.
  • control message further includes activation information for activating the second D2D device.
  • the eighth possible implementation manner of the second aspect If the wireless access device determines, according to the report message, that the second D2D device is a D2D device that provides a communication service with the wireless access device for the first D2D device, the indication information includes the second D2D device. logo.
  • a method for device discovery including:
  • the D2D device capable of providing the first D2D device with a communication service with the wireless access device, according to the report message;
  • the wireless access device sends a control message to the first D2D device, where the control message includes indication information indicating that the first D2D device is provided with the wireless access device The communication service of the D2D device.
  • the wireless access device sends the indication information to the second D2D device.
  • the indication information includes an identifier of the second D2D device.
  • the report message includes at least one of a channel quality between the first D2D device and the second D2D device, an identifier of the first D2D device, and an identifier of the second D2D device.
  • the wireless access device determines, according to the report message, whether the second D2D device can be the first D2D
  • the device provides a D2D device that provides communication services with the wireless access device, including:
  • Determining, by the radio access network device, whether the second D2D device can be based on a channel quality between the first D2D device and the second D2D device, and a channel quality between the radio access device and the second D2D device A D2D device that provides communication services for the first D2D device with the wireless access device.
  • the wireless access device further transmits, to the second D2D device, a physical resource occupied by the D2D device that provides the first D2D device with a communication service with the wireless access device, and provides the first D2D device with the physical resource The information of the group identification of the group in which the D2D device of the communication service of the wireless access device is located.
  • the wireless access device further sends activation information to the second D2D device, where the activation information is used to indicate that the D2D device that provides the communication service with the wireless access device for the first D2D device starts as the first D2D device. Providing communication services with the wireless access device.
  • a first D2D device including:
  • a sending module configured to send a discovery message, where the discovery message is used to trigger the second D2D device to send a report message to the wireless access device, where the report message is used by the wireless access device to determine that the first D2D device provides a D2D device for communication services of a wireless access device;
  • the first receiving module is configured to receive a control message sent by the wireless access device, where the control message includes indication information, where the indication information indicates a D2D device that provides communication service with the wireless access device for the first D2D device.
  • the discovery message includes an identifier of the first D2D device.
  • the reporting message includes a channel between the first D2D device and the second D2D device At least one of quality, an identification of the first D2D device, and an identification of the second D2D device.
  • the first D2D device further includes:
  • a second receiving module configured to receive, before the first D2D device sends the discovery message, an announcement message sent by the second D2D device, where the announcement message is used to notify the first D2D device of the existence of the second D2D device;
  • the sending module is specifically used to:
  • the announcement message includes the first power level information that the second D2D device sends the announcement message
  • the first D2D device further includes:
  • a determining module configured to determine second power level information that receives the announcement message
  • the sending module is specifically configured to:
  • the second D2D device Determining, according to the first power level information and the second power level information, that the second D2D device is a D2D device candidate capable of providing a communication service with the wireless access device for the first D2D device, and to the second D2D
  • the device sends the discovery message, where the discovery message includes the identifier of the second D2D device.
  • control The message further includes a physical resource occupied by the D2D device that provides the first D2D device with a communication service with the wireless access device, and provides the wireless access to the first D2D device The group ID of the group in which the D2D device of the communication service of the device is located.
  • a second D2D device for device discovery including:
  • a first receiving module configured to receive a discovery message sent by the first D2D device, where the discovery message is used to trigger the second D2D device to send a report message to the wireless access device, where the report message is used by the wireless access device to determine a D2D device that provides communication services with the wireless access device for the first D2D device;
  • a first sending module configured to send the report message to the wireless access device according to the discovery message received by the first receiving module
  • the second receiving module is configured to receive a control message sent by the wireless access device, where the control message includes indication information, where the indication information indicates that the D2D device that provides communication service with the wireless access device for the first D2D device.
  • the discovery message includes an identifier of the first D2D device.
  • the reporting message includes a channel between the first D2D device and the second D2D device At least one of quality, identification of the first D2D device, and identification of the second D2D device.
  • the second D2D device further includes:
  • a second sending module configured to send, to the first D2D device, an announcement message, where the first D2D device sends the discovery message, the announcement message is used to notify the first D2D device of the existence of the second D2D device;
  • the first receiving module is specifically configured to:
  • the announcement message includes the first power level information that the second D2D device sends the announcement message
  • the first receiving module is specifically configured to:
  • the second D2D device Determining, by the first D2D device, that the second D2D device is capable of being the first D2D according to the first power level information and the second power level information that the second D2D device receives the announcement message
  • the second D2D device receives the discovery message sent by the first D2D device, and the discovery message includes the identifier of the second D2D device.
  • the control message further includes a physical resource occupied by the D2D device that provides the first D2D device with the communication service of the wireless access device, and a D2D that provides the first D2D device with the communication service of the wireless access device. Group ID of the group where the device is located.
  • control message further includes activation information, where the activation information is used to indicate that the D2D device that provides the first D2D device with the communication service of the wireless access device starts to provide the first D2D device with the wireless access device. Communication service.
  • control message further includes activation information, where the activation information is used to indicate that the D2D device that provides the first D2D device with the communication service of the wireless access device starts to provide the first D2D device with the wireless access device. Communication service.
  • the eighth possible implementation manner of the fifth aspect If the wireless access device determines, according to the report message, that the second D2D device is a D2D device that provides a communication service with the wireless access device for the first D2D device, the indication information includes the second D2D device. logo.
  • a wireless access device including:
  • a receiving module configured to receive a report message sent by the second D2D device, where the report message is used by the wireless access device to determine a D2D device that provides communication service with the wireless access device for the first D2D device;
  • a determining module configured to determine, according to the report message received by the receiving module, whether the second D2D device can provide a D2D device that provides communication service with the wireless access device for the first D2D device;
  • a first sending module configured to determine, according to the determining module, that the wireless access device is first
  • the D2D device sends a control message, the control message including indication information indicating the D2D device that provides communication service with the wireless access device for the first D2D device.
  • the wireless access device further includes:
  • the second sending module is configured to send the indication information to the second D2D device.
  • the indication information includes an identifier of the second D2D device.
  • the report message includes at least one of a channel quality between the first D2D device and the second D2D device, an identifier of the first D2D device, and an identifier of the second D2D device.
  • the determining module is specifically configured to:
  • the wireless access device further includes :
  • a third sending module configured to send, to the second D2D device, a physical resource occupied by a D2D device that provides a communication service with the wireless access device for the first D2D device, and provide the wireless device with the wireless device for the first D2D device Information about the group identification of the group in which the D2D device of the communication service of the access device is located.
  • the wireless access device further includes :
  • a fourth sending module configured to send, to the second D2D device, activation information, where the activation information is used to indicate that the D2D device that provides the first D2D device with the communication service of the wireless access device starts to provide the first D2D device Communication service with the wireless access device.
  • the seventh aspect provides a system for device discovery, comprising: the first D2D device of the fourth aspect, the second D2D device of the fifth aspect, and the wireless access device of the sixth aspect.
  • a first D2D device including: a processor and a memory;
  • the memory stores a program
  • the processor executes the program for performing the device discovery method of the first aspect or any of the possible implementations of the first aspect.
  • a second D2D device includes: a processor and a memory
  • the memory stores a program, the processor executing the program, the method for performing device discovery described in any of the possible implementations of the second aspect or the second aspect.
  • a tenth aspect provides a device for discovering a wireless access device, comprising: a processor and a memory; the memory storing a program, the processor executing the program, for performing the third aspect or the third aspect A method of device discovery as described in any of the possible implementations.
  • the first D2D device sends a discovery message for triggering the second D2D device to send a report message to the wireless access device, so that the wireless access device determines the second according to the report message.
  • the D2D device can provide communication service with the wireless access device for the first D2D device, so that the first D2D device can provide the first D2D device with the wireless access device by using the assistance of the wireless access device
  • a potentially high quality D2D device for communication services improves the quality of communication between the first D2D device and the wireless access device.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for device discovery according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a method for device discovery according to another embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of a method for device discovery according to still another embodiment of the present invention.
  • FIG. 5 is a schematic diagram of an interaction process of a method for device discovery according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of an interaction process of a method for device discovery according to an embodiment of the present invention.
  • Figure 7 is a schematic block diagram of a first D2D device in accordance with one embodiment of the present invention.
  • Figure 8 is a schematic block diagram of a second D2D device in accordance with one embodiment of the present invention.
  • FIG. 9 is a schematic block diagram of a wireless access device in accordance with one embodiment of the present invention.
  • Figure 10 is a schematic block diagram of a system in accordance with an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a first D2D device according to another embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a second D2D device according to another embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of a wireless access device according to another embodiment of the present invention.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access Wireless
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE Frequency Division Duplex Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • the radio access device includes the cellular radio access devices in the foregoing access systems, and is typically, for example, various macro base stations and small base stations (referred to as Small cells in English).
  • the base stations may be Base Stations (BTSs) in GSM or CDMA, or base stations (NodeBs) in WCDMA, and may also be evolved base stations (eNB or e-NodeB, evolutional Node B) in LTE.
  • BTSs Base Stations
  • NodeBs base stations
  • eNB or e-NodeB, evolutional Node B evolutional Node B
  • the invention is not limited.
  • the wireless access device may also include a wireless local area network access point, such as an access point using Wireless Fidelity Technology (Wi-Fi) technology.
  • Wi-Fi Wireless Fidelity Technology
  • the D2D device in various embodiments of the present invention mainly includes various user equipments (UEs) that use the D2D protocol.
  • UEs user equipments
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present invention.
  • user equipment (UE) 1, UE2, UE3, UE4, and UE5 are located in a network range served by the base station, and the user equipment supports device-to-device (D2D) communication.
  • D2D communication refers to one UE transmitting control information and data, and other UEs obtain subsequent data by reading control information. Send information such as format to receive subsequent data correctly.
  • UE1 is a user equipment that is far away from the base station, and UE1 hopes to communicate with the wireless access device anytime and anywhere through the help of other user equipments.
  • the UE2 discovered by the UE1 cannot guarantee the communication quality between the UE1 and the wireless access device.
  • UE1 may find one or more user equipments, or one or more user equipments may require assistance from other user equipments, and the like.
  • the UE that needs the user equipment to help communicate with the base station is referred to as a first D2D device
  • the first D2D device may be a wearable device, such as a smart watch, a smart pedometer, etc., or may be
  • the present invention does not limit the terminal device that is limited in power or sensitive to energy consumption.
  • a user equipment that can help the first D2D device to communicate with the base station is referred to as a second D2D device, and a D2D device that may be selected is referred to as a potential D2D device (or a D2D device candidate),
  • the second D2D device can communicate with one or more core networks via a Radio Access Network (RAN).
  • RAN Radio Access Network
  • the second D2D device can be a cellular phone, a cordless phone, or a Session Initiation Protocol (SIP).
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • FIG. 2 shows a schematic diagram of a method 100 of device discovery in accordance with one embodiment of the present invention.
  • the method 100 is performed by a first D2D device. As shown in FIG. 2, the method 100 includes:
  • the first D2D device sends a discovery message, where the discovery message is used to trigger the second D2D device to send a report message to the wireless access device, where the report message is used by the wireless access device to determine that the first D2D device provides a D2D device of the communication service of the wireless access device;
  • the first D2D device receives a control message sent by the wireless access device, where the control message includes indication information indicating a D2D device that provides communication service with the wireless access device for the first D2D device.
  • the first D2D device sends a discovery message in a broadcast manner
  • the discovery message may trigger the second D2D device to send a report message to the wireless access device, so that the wireless access device may determine the second D2D device according to the report message. Is it possible to provide the first D2D device with Communication service of the wireless access device. Since the first D2D device sends the discovery message in a broadcast manner, the discovery message may trigger more than one D2D device to send a report message to the wireless access device, so that the wireless access device may receive at least one D2D device to send. Reporting news.
  • the wireless access device receives, by the wireless access device, a control message, where the control message includes indication information, where the indication information may be sent to the first D2D device, where the wireless access device has selected to provide the first D2D device with the wireless access
  • the D2D device of the communication service of the device so that the communication quality between the first D2D device and the wireless access device can be improved by the assistance of the wireless access device in the embodiment of the present invention.
  • the wireless access device selects a plurality of D2D devices for the first D2D device to provide communication services between the first D2D and the wireless access device
  • the multiple D2D devices may form a first D2D device with the first D2D device.
  • the assistance group, all D2Ds in the assistance group can simultaneously help the first D2D to communicate with the wireless access device.
  • the first D2D device finds that the three D2D devices form an assist group with the first D2D device by using the assistance of the wireless access device, and the first D2D device can simultaneously send one piece of data to the three D2D devices, and then pass each The D2D device forwards data to the wireless access device, and the wireless access device performs diversity reception on the data from each D2D device, thereby improving the robustness of data reception and ensuring the quality of the transmitted data.
  • the first D2D device sends a discovery message for triggering the second D2D device to send a report message to the wireless access device, so that the wireless access device determines the second D2D according to the report message. Whether the device can provide the first D2D device with the communication service with the wireless access device, so that the first D2D device can provide the first D2D device with the wireless access device by using the assistance of the wireless access device.
  • the high quality D2D equipment served improves the communication quality between the first D2D device and the wireless access device.
  • control message further includes: a physical resource occupied by the D2D device that provides communication service with the wireless access device for the first D2D device, and a communication service with the wireless access device for the first D2D device.
  • control message may further carry a physical resource occupied by the D2D device that provides the first D2D device with the communication service of the wireless access device, and provide a communication service with the wireless access device for the first D2D device.
  • the group ID of the assistance group where the D2D device is located for example, Help group indexing and initial use of resources.
  • the wireless access device allocates an index of the assistance group to the assistance group, that is, specifies a unique identification ID for the assistance group, so that the first D2D device can use the ID as a multicast ID, thereby simultaneously multicasting the data to the assistance group. All D2D devices selected by the wireless access device.
  • the first D2D device and all the D2D devices selected by the wireless access device are uniformly allocated by the wireless access device to enable the first D2D device and all the D2D devices selected by the wireless access device.
  • the transmission process can be initiated on the agreed initial resource, for example, the transmission of relevant state information (scheduling request, cache status report, etc.) before data transmission.
  • relevant state information scheduling request, cache status report, etc.
  • each assist group includes a first D2D device, and the first D2D device can obtain the simultaneous assistance of all D2D devices selected by the wireless access device in the assist group.
  • a D2D device capable of helping other devices can serve multiple D2D devices that need help, that is, a D2D device capable of helping other devices can form different assistance groups with different D2D devices that need help, and the present invention does not perform this. limited.
  • the first D2D device and the second D2D device initiate communication according to the index of the first assistance group allocated by the wireless access device and the first initial use resource; if the second D2D When the device serves the third D2D device (ie, another D2D device that needs help), the third D2D device and the second D2D device may initiate communication according to the index of the second assistance group allocated by the wireless access device and the second initial use resource.
  • This invention is not limited thereto.
  • the discovery message includes an identifier of the first D2D device.
  • the discovery message sent by the first D2D device to the second D2D device may carry the identifier of the first D2D device, so that the second D2D device may determine which D2D device seeks help.
  • the second D2D device sends the report message to the wireless access device
  • the identifier of the first D2D device is also carried, and when the second D2D device is assisted by the wireless access device, the first D2D device is determined to communicate with the wireless access device.
  • the wireless access device may send a control message to the first D2D device according to the identifier of the first D2D device, to inform the first D2D device and which D2D devices constitute the assistance group.
  • the reporting message may further include the first D2D device and the second D2D device.
  • the present invention does not limit the channel quality and the identifier of the second D2D device.
  • the discovery message may be a discovery request message, where the discovery request message includes low power consumption discovery indication information.
  • the first D2D device may send the discovery request message to the second D2D device at a low power in a broadcast form for actively requesting discovery of the second D2D device.
  • the low power indicates that the power value of the first D2D device transmitting the discovery request message is less than or equal to the power threshold.
  • the discovery request message includes low power consumption discovery indication information, and the low power consumption discovery indication information may trigger the second D2D device to send a report message to the wireless access device, so that the wireless access device determines, according to the report message, whether the second D2D device is
  • the first D2D device can be provided with a communication service with the wireless access device, and if the second D2D device is selected, the second device can form an assistance group with the first D2D device.
  • the plurality of D2D devices form an assist group with the first D2D device, and all of the assisted groups are wirelessly connected.
  • the D2D device selected by the input device can simultaneously help the first D2D device to communicate with the wireless access device, thereby improving the communication quality of the first D2D device.
  • the power consumption of the first D2D device can be significantly reduced by reducing the transmission power of the first D2D device.
  • the first D2D device sends the discovery request message by low power to actively request the discovery of the second D2D device, which can avoid sending the discovery message with the largest possible power in the prior art, further reducing the first D2D.
  • the transmit power of the device thereby reducing the power consumption of the first D2D device and extending the service life of the first D2D device.
  • the first D2D device sends the discovery request message with a power less than or equal to the power threshold, which means that the first D2D device sends a broadcast message (represented as a discovery request message) within a range reachable by the power threshold, and In the range of the distance, there is no substance to block the sending of the discovery request message, or the substance in the distance range is transparent to the discovery request message, which is not limited by the present invention.
  • the first D2D device may periodically send the discovery request message; or the first D2D device may also trigger the discovery request message, for example, if the first D2D device is limited in energy consumption or When the high communication quality requirement or the like requires the assistance of the second D2D device, the first D2D device may be triggered to send the discovery request message.
  • the invention is not limited thereto.
  • the method before the first D2D device sends the discovery message, the method further includes:
  • the first D2D device sends the discovery message, including:
  • the first D2D device sends the discovery message to the second D2D device according to the announcement message.
  • the first D2D device discovers the second D2D device by receiving the announcement message, and sends the discovery message in the form of a broadcast to respond to the announcement message, so that the second D2D device sends the report message to the wireless access device according to the discovery message. And determining, by the wireless access device, whether the second D2D device can provide communication service with the wireless access device for the first D2D device according to the report message, thereby the first D2D device can be assisted by the wireless access device. Providing a D2D device that performs communication service with the wireless access device, thereby improving communication quality between the first D2D device and the wireless access device.
  • the first D2D device may periodically search for a potential D2D device, that is, periodically receive an announcement message; or the first D2D device may also trigger a receiving announcement message, for example, an event trigger, that is, when the first D2D device has The request message is received when the need for D2D device assistance is required.
  • a potential D2D device that is, periodically receive an announcement message
  • the first D2D device may also trigger a receiving announcement message, for example, an event trigger, that is, when the first D2D device has The request message is received when the need for D2D device assistance is required.
  • a receiving announcement message for example, an event trigger
  • the first D2D device may also periodically respond to the announcement message; or the first D2D device may also trigger the announcement message, for example, if the first D2D device simultaneously receives a preset fixed value.
  • the number of announcement messages, or announcement messages greater than the fixed number of numbers, can be used to respond to the announcement message.
  • the invention is not limited thereto.
  • the announcement message includes first power level information that is sent by the second D2D device to the announcement message;
  • the method further includes: the first D2D device determining second power level information for receiving the announcement message;
  • the first D2D device sends the discovery message to the second D2D device according to the announcement message, including:
  • the second D2D device Determining, by the first D2D device, the second D2D device as a D2D device candidate capable of providing communication service with the wireless access device for the first D2D device according to the first power level information and the second power level information, and Sending the discovery message to the second D2D device, where the discovery message includes the identifier of the second D2D device.
  • the first D2D device when the first D2D device receives the announcement message sent by the second D2D device by using any one of three power levels: long distance discovery, medium distance discovery, and short distance discovery, the first D2D device cannot receive according to the receiving.
  • the signal strength to the announcement message determines the second D2D device and the The distance of a D2D device.
  • the first D2D device receives a stronger announcement message, which may be because the announcement message is sent by the second D2D device at a power level (ie, high power) discovered by a long distance, that is, the first D2D device and the transmission.
  • the second D2D device of the announcement message is far away. Therefore, the first D2D device cannot accurately determine the distance between the second D2D device and the first D2D device based only on the signal strength of the received announcement message.
  • the first D2D device may receive the announcement message according to the first power level information.
  • the second power level information comprehensively determines the second D2D device that satisfies the distance condition.
  • the first D2D device can determine the D2D device that is close enough to the first D2D device among all the potential D2D devices that send the announcement message, so as to prevent the D2D device that is far away from selecting the communication with the wireless access device, thereby further Reduce the power consumption of the first D2D device.
  • the first D2D device may carry the identifier list including the at least one D2D device in the discovery message, and after receiving the discovery message, the second D2D device may search whether it is in the identifier list, and the identifier included in the identifier list
  • the second D2D device sends a report message to the wireless access device, and the wireless access device determines, according to the report message, whether the second D2D device can provide communication service with the wireless access device for the first D2D device, thereby the first D2D device.
  • the D2D device capable of providing communication service with the wireless access device can be provided by the auxiliary discovery of the wireless access device, thereby improving the communication quality between the first D2D device and the wireless access device.
  • the first D2D device sends a discovery message for triggering the second D2D device to send a report message to the wireless access device, so that the wireless access device selects the second according to the report message selection.
  • the D2D device can provide communication service with the wireless access device for the first D2D device, so that the first D2D device can provide the first D2D device with the wireless access device by using the assistance of the wireless access device.
  • the high-quality D2D device of the communication service improves the communication quality between the first D2D device and the wireless access device.
  • the method for device discovery according to an embodiment of the present invention is described in detail above from the perspective of a first D2D device, and a method for device discovery according to an embodiment of the present invention will be described below from the perspective of a second D2D device.
  • FIG. 3 shows a schematic diagram of a method 300 of device discovery in accordance with one embodiment of the present invention.
  • the Method 300 is performed by a second D2D device. As shown in FIG. 3, the method 300 includes:
  • the second D2D device receives a discovery message sent by the first D2D device, where the discovery message is used to trigger the second D2D device to send a report message to the wireless access device, where the report message is used by the wireless access device to determine
  • the first D2D device provides a D2D device for communication service with the wireless access device;
  • the second D2D device sends the report message to the wireless access device according to the discovery message.
  • the second D2D device receives a control message sent by the wireless access device, where the control message includes indication information, where the indication information indicates that the D2D device that provides communication service with the wireless access device for the first D2D device.
  • the second D2D device receives the discovery message sent by the first D2D device, and the discovery message may trigger the second D2D device to send a report message to the wireless access device, so that the wireless access device can be based on the first D2D device and Determining whether the second D2D device can be the first D2D device, such as channel quality or congestion status between the second D2D device, and channel quality or congestion status between the second D2D device and the wireless access device Provides communication services with wireless access devices. If the second D2D device is selected, the second device can form an assist group with the first D2D device. The second D2D device receives a control message sent by the wireless access device, and according to the control message, can learn which D2D device can provide communication service with the wireless access device.
  • the second D2D device receives the discovery message sent by the second D2D device, and sends a report message to the wireless access device according to the discovery message, so that the wireless access device determines the second D2D device. Whether the communication service with the wireless access device can be provided for the first D2D device, so that the first D2D device can provide the first D2D device with the communication service with the wireless access device through the assistance of the wireless access device.
  • the high quality D2D device improves the communication quality between the first D2D device and the wireless access device. The quality of communication between the first D2D device and the wireless access device.
  • control message further includes: a physical resource occupied by the D2D device that provides communication service with the wireless access device for the first D2D device, and a communication service with the wireless access device for the first D2D device.
  • control message may further carry physical resources occupied by the D2D device that provides the first D2D device with the communication service of the wireless access device, and provide the first D2D device with the physical resource occupied by the D2D device.
  • the group identification of the group in which the D2D device of the communication service with the wireless access device is located for example, the assistance group index and the initial use resource.
  • the wireless access device allocates an index of the assistance group to the assistance group, that is, specifies a unique identification ID for the assistance group, so that the first D2D device can use the ID as a multicast ID, thereby simultaneously multicasting the data to the assistance group. All second D2D devices inside.
  • the wireless access device may perform unified initial allocation of resources for the first D2D device and all the second D2D devices in the assistance group, so that the first D2D device and the second D2D device can initiate the transmission process on the agreed initial resource. For example, transmission of related state information (scheduling request, cache status report, etc.) before data transmission is performed.
  • related state information scheduling request, cache status report, etc.
  • each assist group includes a first D2D device, and the first D2D device can obtain the simultaneous assistance of all D2D devices selected by the wireless access device in the assist group.
  • a D2D device capable of helping other devices can serve multiple D2D devices that need help, that is, a D2D device capable of helping other devices can form different assistance groups with different D2D devices that need help, and the present invention does not perform this. limited.
  • the first D2D device and the second D2D device initiate communication according to the index of the first assistance group allocated by the wireless access device and the first initial use resource; if the second D2D When the device serves the third D2D device (ie, another D2D device that needs help), the third D2D device and the second D2D device may initiate communication according to the index of the second assistance group allocated by the wireless access device and the second initial use resource.
  • This invention is not limited thereto.
  • the discovery message includes an identifier of the first D2D device.
  • the second D2D device receives the discovery message sent by the first D2D device, where the discovery message may carry the identifier of the first D2D device, so that the second D2D device can determine which D2D device seeks help.
  • the second D2D device sends the report message to the wireless access device, the identifier of the first D2D device is also carried.
  • the wireless access device After the D2D device is determined by the assistance of the wireless access device for the first D2D device, the wireless access device
  • the control message may be sent to the first D2D device according to the identifier of the first D2D device, to inform the first D2D device and which D2D devices constitute the assistance group.
  • the reporting message may further include a channel quality between the first D2D device and the second D2D device, and an identifier of the second D2D device. If the wireless access device is based on the upper Declaring that the second D2D device is a D2D device that provides communication service with the wireless access device for the first D2D device, and the second device receives the indication information sent by the wireless access device, and the The identifier of the second D2D device.
  • the second D2D device may determine, according to the received discovery message, first channel measurement information indicating a channel quality between the first D2D device and the second D2D device, and send the first channel measurement information following the report message to the wireless device.
  • the access device enables the wireless access device to learn the channel quality between the first D2D device and the second D2D device that sends the reported message.
  • the second D2D device determines, according to the first channel measurement information, that the communication quality between the second D2D device and the first D2D device is lower than a preset threshold, that is, it is difficult to meet the communication requirement of the first D2D device, The second D2D device does not send the report message to the wireless access device, or the wireless access device does not select the second D2D device service even after the second D2D device sends the report message to the wireless access device.
  • the first D2D device is not limited by the present invention.
  • the discovery message is a discovery request message, where the discovery request message includes low power consumption discovery indication information, where the second D2D device sends a report message to the wireless access device according to the discovery message, including: the second D2D The device sends the report message to the wireless access device according to the low power consumption discovery indication information.
  • the second D2D device may be in a standby state, and listen to the identity of the listener whether there is a first D2D device that needs help to initiate a discovery request message. For example, the second D2D device receives the discovery request message sent by the first D2D device with low power, indicating that the second D2D device is within a range that the first D2D device can cover with a low power transmission discovery message. In this way, the wireless access device can be selected to select the second D2D device that is far away from the first D2D device for the first D2D device, and the power consumption of the first D2D device is reduced.
  • the discovery request message includes the low-power discovery indication information.
  • the discovery request message may be a direct trigger, that is, as long as the second D2D device can receive the discovery request message, the low-power discovery indication information may be directly
  • the wireless access device sends a report message, so that the wireless access device determines, according to the report message, whether the second D2D device can provide a communication service with the wireless access device for the first D2D device.
  • the first D2D device can discover the D2D device capable of communicating with the wireless access device through the assistance of the wireless access device, thereby improving the communication quality between the first D2D device and the wireless access device.
  • the second D2D device receives the first D2D device and sends the signal through low power.
  • the discovery request message can prevent the first D2D device in the prior art from transmitting the discovery message with the largest possible power, thereby further reducing the transmission power of the first D2D device, reducing the power consumption of the first D2D device, and extending the first D2D device. The service life.
  • the method before the first D2D device sends the discovery message, the method further includes:
  • the second D2D device sends an announcement message to the first D2D device, where the announcement message is used to notify the first D2D device of the existence of the second D2D device;
  • the second D2D device receives the discovery message sent by the first D2D device according to the announcement message.
  • the second D2D device is in a discovery announcement state, and the announcement message is sent out in the form of a broadcast to announce the existence of the second D2D device.
  • the second D2D device sends an announcement message to the first D2D device, so that the first D2D device can discover the second D2D device by receiving the announcement message, and respond to the announcement message by the discovery message.
  • the second D2D device sends a report message to the wireless access device according to the discovery message, and the wireless access device determines, according to the report message, whether the second D2D device can provide the first D2D device with the communication service with the wireless access device. .
  • the first D2D device can discover the D2D device capable of communicating with the wireless access device through the assistance of the wireless access device, thereby improving the communication quality between the first D2D device and the wireless access device.
  • the announcement message includes first power level information that the second D2D device sends the announcement message
  • the second D2D device receives the discovery message that is sent by the first D2D device according to the announcement message, and includes:
  • the second D2D device Determining, by the first D2D device, that the second D2D device is capable of providing the first D2D device with the wireless access according to the first power level information and the second power level information of the second D2D device receiving the announcement message.
  • the second D2D device receives the discovery message sent by the first D2D device, and the discovery message includes the identifier of the second D2D device.
  • the announcement message includes first power level information for transmitting the announcement message, and the second D2D device sends the announcement message to the first D2D device, so that the first D2D device is configured according to the first
  • the power level information and the second power level information of the announcement message can determine whether the second D2D device can be the first D2D device and the wireless device A candidate for a D2D device that accesses the communication service of the device.
  • the second D2D device can provide the first D2D device with the communication service with the wireless access device
  • the second D2D device can send a report message to the wireless access device, thereby preventing the wireless access device from being the first
  • the D2D device selects a D2D device that is far away from the first D2D device, reducing the power consumption of the first D2D device.
  • the identification information of the second D2D device may be embodied by the identification list.
  • the first D2D device determines the at least one D2D device according to the first power level information and the second power level information, and lists the at least one D2D device in the identification list.
  • the second D2D device detects whether the second D2D device is included in the identifier list, and if it is determined in the identifier list, sends a report message to the wireless access device according to the identifier information; When the second D2D device is not in the identifier list, the report message is not sent.
  • the wireless access device can select the D2D device according to the report message, so that the first D2D device can provide the D2D device capable of providing communication service with the wireless access device by using the auxiliary function of the wireless access device, thereby improving the first D2D.
  • the quality of communication between the device and the wireless access device can select the D2D device according to the report message, so that the first D2D device can provide the D2D device capable of providing communication service with the wireless access device by using the auxiliary function of the wireless access device, thereby improving the first D2D.
  • the reporting message further includes an assistance group formation request information, where the assistance group formation request information is used to trigger formation of the assistance group. That is, the assistance group formation request information can trigger the wireless access device to form the assisted group with the selected D2D device and the first D2D device.
  • control message further includes activation information, where the activation information is used to indicate that the D2D device that provides the communication service with the wireless access device for the first D2D device starts as the first D2D The device provides communication services with the wireless access device.
  • the second D2D device receives a control message sent by the wireless access device, and the control message further includes activation information.
  • the control message further includes activation information.
  • Each of the D2D devices selected by the wireless access device in the assistance group can receive the control message carrying the activation information sent by the wireless access device.
  • the activation information can activate each of the D2D devices selected by the wireless access device in the assistance group, thereby enabling the communication service of the first D2D device and the wireless access device at the same time.
  • the second D2D device receives the discovery message sent by the second D2D device, and sends a report message to the wireless access device according to the discovery message, so that the wireless access device determines the second D2D device. Whether the communication service with the wireless access device can be provided for the first D2D device, so that the first D2D device can provide the first D2D device with the communication service with the wireless access device through the assistance of the wireless access device.
  • the high quality D2D device improves the communication quality between the first D2D device and the wireless access device.
  • the method 300 details the design according to an embodiment of the present invention from the perspective of a second D2D device Method of Discovery, a method of device discovery according to an embodiment of the present invention will be described below from the perspective of a wireless access device.
  • FIG. 4 shows a schematic diagram of a method 500 of device discovery in accordance with one embodiment of the present invention.
  • the method 500 is performed by a wireless access device. As shown in FIG. 4, the method 500 includes:
  • the wireless access device receives the report message sent by the second D2D device, where the report message is used by the wireless access device to determine that the first D2D device provides a D2D device with the wireless access device.
  • the wireless access device determines, according to the report message, whether the second D2D device can provide a D2D device that provides communication service with the wireless access device for the first D2D device;
  • the wireless access device sends a control message to the first D2D device, where the control message includes indication information indicating that the D2D device that provides communication service with the wireless access device for the first D2D device .
  • the wireless access device receives a report message sent by each D2D device of the D2D device or the plurality of D2D devices, and selects, according to the report message, the at least one D2D device to provide the first D2D device with the
  • the D2D device of the communication service of the wireless access device forms a help group with the selected D2D device and the first D2D device, and all D2D devices selected by the wireless access device in the assist group can simultaneously help the first D2D device and Communication service for wireless access devices.
  • the wireless access device may send a control message including the indication information to the first D2D device, so that the instruction information for the assistance group is unified.
  • the wireless access device receives the report message sent by the second D2D device, and determines whether the second D2D device can provide the first D2D device with the communication service with the wireless access device. Therefore, the first D2D device, through the assistance of the wireless access device, finds that the first D2D device can provide a high-quality D2D device that communicates with the wireless access device, and improves the first D2D device and the wireless access device. The quality of communication between.
  • the wireless access device sends the first indication information to the first D2D device in the assistance group, and simultaneously sends the second indication information to each second D2D device in the assistance group.
  • the wireless access device may first send the first indication information to the first D2D device in the assistance group, and then send the second indication information to each second D2D device in the assistance group.
  • the wireless access device may first send the second indication information to each of the second D2D devices in the assistance group, and then send the first indication information to the first D2D device in the assistance group, which is not limited by the disclosure.
  • first indication information and the second indication information may be the same or different.
  • the invention does not limit this.
  • the reporting message may further include a channel quality between the first D2D device and the second D2D device, and an identifier of the second D2D device.
  • the wireless access device determines, according to the report message, that the second D2D device is a D2D device that provides a communication service with the wireless access device for the first D2D device, the wireless access device sends the second D2D device to the second D2D device.
  • the indication of the second D2D device is also included in the indication information.
  • control message further includes: a physical resource occupied by the D2D device that provides communication service with the wireless access device for the first D2D device, and a communication service with the wireless access device for the first D2D device.
  • control message may further carry a physical resource occupied by the D2D device that provides the first D2D device with the communication service of the wireless access device, and provide a communication service with the wireless access device for the first D2D device.
  • the group ID of the group in which the D2D device is located for example, assisting the group index and initial use of resources.
  • the wireless access device allocates an index of the assistance group to the assistance group, that is, specifies a unique identification ID for the assistance group, so that the first D2D device can use the ID as a multicast ID, thereby simultaneously multicasting the data to the assistance group. All D2D devices selected by the wireless access device.
  • the first D2D device in the assisted group and all the D2D devices selected by the wireless access device are uniformly allocated by the wireless access device, so that the first D2D device and the second D2D device can be agreed upon.
  • the transmission process is initiated on the initial resource, for example, transmission of related state information (scheduling request, cache status report, etc.) before data transmission.
  • related state information scheduling request, cache status report, etc.
  • the reporting message includes assistance group formation request information.
  • the wireless access device receives the report message including the assistance group formation request information, and the assistance group formation request information is used to trigger the formation of the assistance group. That is, the assistance group formation request information can trigger the wireless access device to form the assisted group with the selected D2D device and the first D2D device.
  • the wireless access device determines, according to the report message, whether the second D2D device is capable of providing the first D2D device with a D2D device that provides communication service with the wireless access device, including
  • the radio access network device determines, according to the channel quality between the first D2D device and the second D2D device, and the channel quality between the radio access device and the second D2D device, whether the second D2D device is A D2D device capable of providing communication services for the first D2D device with the wireless access device.
  • the wireless access device may determine, according to the report message, second channel measurement information indicating a channel quality between the second D2D device and the wireless access device.
  • the reporting message carries first channel measurement information indicating a channel quality between the first D2D device and the second D2D device.
  • the wireless access device determines, according to the second channel measurement information and the first channel measurement information, whether the second D2D device can provide a communication service with the wireless access device for the first D2D device. If the second D2D device is selected, the second device can form an assist group with the first D2D device.
  • the plurality of D2D devices form an assist group with the first D2D device, and all of the assisted groups are wirelessly connected.
  • the D2D device selected by the input device can simultaneously help the first D2D device to communicate with the wireless access device, thereby improving the communication quality of the first D2D device.
  • the wireless access device may select a set of D2D devices having a channel quality between the first D2D device and the D2D device and a channel quality between the D2D device and the wireless access device, and all D2D devices in the set are The first D2D device forms an assist group.
  • a quality threshold may be preset, and when the quality threshold is higher than the quality threshold, the channel quality may be considered to be high; when the quality threshold is lower than the quality threshold, the channel quality may be considered to be poor, and the first D2D device is assisted in the wireless access device.
  • the second D2D device is discarded to help the first D2D device to communicate.
  • the second control message further includes activation information, where the activation information is used to indicate that the D2D device that provides the communication service with the wireless access device for the first D2D device starts to be the first A D2D device provides communication services with the wireless access device.
  • the wireless access device sends a control message to the second D2D device, where the control message further includes activation information.
  • the control message further includes activation information.
  • Each of the D2D devices selected by the wireless access device in the assistance group can receive the control message carrying the activation information sent by the wireless access device.
  • the activation information can activate each of the D2D devices selected by the wireless access device in the assistance group, thereby enabling the communication service of the first D2D device and the wireless access device at the same time.
  • the wireless access device receives the report message sent by the second D2D device, and determines whether the second D2D device can provide the first D2D device with the communication service with the wireless access device. So that the first D2D device, through the assistance of the wireless access device, finds that the first D2D device can be provided with a communication service with the wireless access device. High-quality D2D devices improve the communication quality between the first D2D device and the wireless access device.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be directed to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • the first D2D device transmits a discovery request message to the second D2D device with low power consumption to actively request discovery of the second D2D device.
  • the second D2D device may determine the first channel measurement information between the first D2D device and the second D2D device according to the received discovery request message, and send the first channel measurement information to the wireless access device according to the report message, and wirelessly connect
  • the ingress device may determine the second channel measurement information between the second D2D device and the wireless access device according to the report message, and determine, according to the second channel measurement information and the first channel measurement information, whether the second D2D device can be the first A D2D provides communication services with the wireless access device.
  • the wireless access device sends the indication information to the first D2D device and the second D2D device in the assistance group.
  • FIG. 5 is a schematic diagram of an interaction process of device discovery according to an embodiment of the present invention.
  • the meanings of the various terms in the embodiments of the present invention are the same as those of the foregoing embodiments.
  • the first D2D device needs the assistance of the second D2D device, send a discovery request message, where the discovery request message includes low power consumption discovery indication information.
  • the second D2D device receives the discovery message sent by the first D2D device, and determines the first channel measurement information according to the discovery request message.
  • the second D2D device sends a report message to the wireless access device according to the low power consumption discovery indication information, where the report message includes the first channel measurement information.
  • the wireless access device determines second channel measurement information according to the report message.
  • the D2D device and the first D2D device form an assist group, and the assist group includes the first D2D device and the second D2D device.
  • the wireless access device sends a control message to the first D2D device, where the control message includes the indication information.
  • the wireless access device sends the indication information to the second D2D device.
  • the second control message may further include activation information for activating the second D2D
  • the device in turn, can begin to provide communication services with the wireless access device for the first D2D device.
  • the first D2D device sends a discovery message for triggering the second D2D device to send a report message to the wireless access device, so that the wireless access device determines the second D2D according to the report message. Whether the device can provide the first D2D device with the communication service with the wireless access device, so that the first D2D device can provide the first D2D device with the wireless access device by using the assistance of the wireless access device.
  • the high quality D2D equipment served improves the communication quality between the first D2D device and the wireless access device.
  • the first D2D device sends the discovery request message at a low power, so that the first D2D device can select a second D2D device that is closer to the first D2D device to form an assistance group. , thereby reducing the power consumption of the first D2D device.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be directed to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • the first D2D device receives an announcement message, where the announcement message carries the first power level information for transmitting the announcement message, according to the first power level information and the second power of receiving the announcement message.
  • the level information may determine that the second D2D device is closer to the first D2D device, and send a discovery message including the identification information of the second D2D device in a broadcast form in response to the announcement message.
  • the second D2D device receives the discovery message, and sends a report message to the wireless access device according to the identifier information of the second D2D device.
  • the second D2D device may determine the first channel measurement information between the first D2D device and the second D2D device according to the received discovery message, and send the first channel measurement information to the wireless access device.
  • the wireless access device may determine the second channel measurement information between the second D2D device and the wireless access device according to the report message, and determine, according to the second channel measurement information and the first channel measurement information, whether the second D2D device can be
  • the first D2D provides a communication service with the wireless access device.
  • the wireless access device transmits indication information to the first D2D device and the second D2D device.
  • FIG. Figure The interaction flow of the method for device discovery according to another embodiment of the present invention is shown in FIG. Figure.
  • the meanings of the various terms in the embodiments of the present invention are the same as those of the foregoing embodiments.
  • the first D2D device receives an announcement message, where the announcement message includes first power level information for transmitting the announcement message.
  • the first D2D device determines, according to the announcement message and the second power level information that receives the announcement message, the second D2D device according to the first power level information and the second power level information that receives the announcement message.
  • the first D2D device is relatively close.
  • the first D2D device sends a discovery message that is responsive to the announcement message, where the discovery message includes identifier information of the second D2D device.
  • the identification information of the second D2D device may be embodied by the identifier list. After receiving the discovery message, the potential second D2D device may search whether it is in the identifier list, and the second D2D device included in the identifier list sends the information to the wireless access device. Report the message.
  • the second D2D device determines first channel measurement information according to the discovery request message.
  • the second D2D device sends the report message to the wireless access device, where the report message includes first channel measurement information.
  • the wireless access device determines second channel measurement information according to the reported message.
  • the wireless access device sends a control message to the first D2D device, where the control message includes the indication information.
  • the wireless access device sends the indication information to the second D2D device.
  • the second control message may further include activation information for activating the second D2D device, thereby enabling to start providing communication services with the wireless access device for the first D2D device.
  • the first D2D device sends a discovery message for triggering the second D2D device to send a report message to the wireless access device, so that the wireless access device determines the second D2D according to the report message. Whether the device can provide the first D2D device with the communication service with the wireless access device, so that the first D2D device can provide the first D2D device with the wireless access device by using the assistance of the wireless access device.
  • the high quality D2D equipment served improves the communication quality between the first D2D device and the wireless access device.
  • the first D2D device receives an announcement message, where the announcement message carries the first power level information for transmitting the announcement message, according to the second power level information that receives the announcement message, and the The first power level information determines a distance between the second D2D device and the first D2D device, such that the first D2D device can select a D2D device that is closer to the first D2D device, thereby reducing power consumption of the first D2D device.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be directed to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • the method of device discovery according to an embodiment of the present invention is described in detail above, and a first D2D device, a second D2D device, and a wireless access device according to an embodiment of the present invention will be described below.
  • FIG. 7 shows a schematic block diagram of a first D2D device 900 in accordance with an embodiment of the present invention.
  • the first D2D device 900 includes:
  • the sending module 910 is configured to send a discovery message, where the discovery message is used to trigger the second D2D device to send a report message to the wireless access device, where the report message is used by the wireless access device to determine that the first D2D device provides a D2D device of the communication service of the wireless access device;
  • the first receiving module 920 is configured to receive a control message sent by the wireless access device, where the control message includes indication information, where the indication information indicates a D2D device that provides communication service with the wireless access device for the first D2D device.
  • the first D2D device that is discovered by the device in the embodiment of the present invention, the first D2D device sends a discovery message for triggering the second D2D device to send a report message to the wireless access device, so that the wireless access device determines the message according to the report message.
  • the second D2D device can provide the first D2D device with the communication service with the wireless access device, so that the first D2D device, through the assistance of the wireless access device, finds that the first D2D device can be provided with the wireless access
  • the high-quality D2D device that the device performs communication services improves the communication quality between the first D2D device and the wireless access device.
  • the discovery message includes an identifier of the first D2D device.
  • the first D2D device 900 further includes:
  • the report message includes at least one of a channel quality between the first D2D device and the second D2D device, an identifier of the first D2D device, and an identifier of the second D2D device.
  • the first D2D device further includes:
  • a second receiving module configured to receive, before the first D2D device sends the discovery message, an announcement message sent by the second D2D device, where the announcement message is used to notify the first D2D device of the The existence of two D2D devices;
  • the sending module is specifically used to:
  • the announcement message includes first power level information that the second D2D device sends the announcement message
  • the first D2D device further includes:
  • a determining module configured to determine second power level information that receives the announcement message
  • the sending module is specifically configured to:
  • the second D2D device Determining, according to the first power level information and the second power level information, that the second D2D device is a D2D device candidate capable of providing a communication service with the wireless access device for the first D2D device, and to the second D2D
  • the device sends the discovery message, where the discovery message includes the identifier of the second D2D device.
  • control message further includes: a physical resource occupied by the D2D device that provides the first D2D device with a communication service with the wireless access device, and provides the first D2D device with the physical resource The group ID of the group in which the D2D device of the communication service of the wireless access device is located.
  • the device 900 may correspond to the first D2D device in the method of device discovery according to an embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the device 900 respectively implement the foregoing respective methods The corresponding process, for the sake of brevity, will not be described here.
  • the first D2D device that is discovered by the device in the embodiment of the present invention, the first D2D device sends a discovery message for triggering the second D2D device to send a report message to the wireless access device, so that the wireless access device determines the message according to the report message.
  • the second D2D device can provide the first D2D device with the communication service with the wireless access device, so that the first D2D device, through the assistance of the wireless access device, finds that the first D2D device can be provided with the wireless access
  • the high-quality D2D device that the device performs communication services improves the communication quality between the first D2D device and the wireless access device.
  • FIG. 8 shows a schematic block diagram of a second D2D device 1100 in accordance with an embodiment of the present invention. As shown in FIG. 8, the second D2D device 1100 includes:
  • the first receiving module 1110 is configured to receive a discovery message sent by the first D2D device, where the discovery message is used to trigger the second D2D device to send a report message to the wireless access device, where the report message is used by the wireless access device Determining a D2D device that provides communication services with the wireless access device for the first D2D device;
  • the first sending module 1120 is configured to send the report message to the wireless access device according to the discovery message received by the first receiving module 1110.
  • the second receiving module 1130 is configured to receive a control message sent by the wireless access device, where the control message includes indication information, where the indication information indicates that the D2D device that provides communication service with the wireless access device for the first D2D device .
  • the second D2D device discovered by the device in the embodiment of the present invention receives the discovery message sent by the second D2D device, and sends a report message to the wireless access device according to the discovery message, so that the wireless access device selects the
  • the first D2D device provides a second D2D device that communicates with the wireless access device, so that the first D2D device can provide the first D2D device with the wireless access device by using the assistance of the wireless access device Serving high quality D2D devices, thereby improving the communication quality between the first D2D device and the wireless access device.
  • the discovery message includes an identifier of the first D2D device.
  • the report message includes at least one of a channel quality between the first D2D device and the second D2D device, an identifier of the first D2D device, and an identifier of the second D2D device. item.
  • the second D2D device 1100 further includes:
  • a second sending module configured to send, to the first D2D device, an announcement message, where the first D2D device sends the discovery message, the announcement message is used to notify the first D2D device of the existence of the second D2D device;
  • the first receiving module is specifically configured to:
  • the announcement message includes first power level information that the second D2D device sends the announcement message
  • the first receiving module is specifically configured to:
  • the second D2D device Determining, by the first D2D device, that the second D2D device is capable of providing the first D2D device with the wireless access according to the first power level information and the second power level information of the second D2D device receiving the announcement message.
  • the second D2D device receives the discovery message sent by the first D2D device, and the discovery message includes the identifier of the second D2D device.
  • control message further includes a physical resource occupied by the D2D device that provides the first D2D device with a communication service with the wireless access device, and is the first A group ID of a group in which a D2D device provides a communication service with the wireless access device.
  • control message further includes activation information, where the activation information is used to indicate that the D2D device that provides the communication service with the wireless access device for the first D2D device starts as the first D2D The device provides communication services with the wireless access device.
  • control message further includes activation information, where the activation information is used to indicate that the D2D device that provides the communication service with the wireless access device for the first D2D device starts as the first D2D The device provides communication services with the wireless access device.
  • the wireless access device determines, according to the report message, that the second D2D device is a D2D device that provides communication service with the wireless access device for the first D2D device,
  • the indication information includes an identifier of the second D2D device.
  • the second D2D device discovered by the device in the embodiment of the present invention receives the discovery message sent by the second D2D device, and sends a report message to the wireless access device according to the discovery message, so that the wireless access device selects the
  • the first D2D device provides a second D2D device that communicates with the wireless access device, so that the first D2D device can provide the first D2D device with the wireless access device by using the assistance of the wireless access device Serving high quality D2D devices, thereby improving the communication quality between the first D2D device and the wireless access device.
  • the second D2D device 1100 may correspond to the second D2D device in the method of device discovery according to an embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the second D2D device 1100
  • the above and other operations and/or functions of the respective modules in the second D2D device 1100 In order to achieve the corresponding processes of the foregoing various methods, for the sake of brevity, no further details are provided herein.
  • FIG. 9 shows a schematic block diagram of a wireless access device 1300 in accordance with an embodiment of the present invention. As shown in FIG. 9, the wireless access device 1300 includes:
  • the receiving module 1310 is configured to receive a report message sent by the second D2D device, where the report message is used by the wireless access device to determine a D2D device that provides communication service with the wireless access device for the first D2D device;
  • a determining module 1320 configured to determine, according to the report message received by the receiving module, whether the second D2D device can provide a D2D device that provides communication service with the wireless access device for the first D2D device;
  • the first sending module 1330 is configured to determine, according to the determining module, that the wireless access device sends a control message to the first D2D device, where the control message includes indication information, where the indication information indicates The first D2D device provides the D2D device with a communication service with the wireless access device.
  • the wireless access device discovered by the device in the embodiment of the present invention receives the report message sent by the second D2D device, and determines whether the second D2D device can provide the first D2D device with the wireless access device.
  • Communication service whereby the first D2D device, through the assistance of the wireless access device, finds that the first D2D device can provide high quality D2D devices for communication with the wireless access device, and improves the first D2D device and the wireless device. The quality of communication between access devices.
  • the wireless access device further includes:
  • the second sending module is configured to send the indication information to the second D2D device.
  • the indication information includes an identifier of the second D2D device.
  • the reporting message includes at least one of a channel quality between the first D2D device and the second D2D device, an identifier of the first D2D device, and an identifier of the second D2D device.
  • the determining module is specifically configured to:
  • the wireless access device further includes:
  • a third sending module configured to send, to the second D2D device, a physical resource occupied by a D2D device that provides a communication service with the wireless access device for the first D2D device, and provide the wireless device with the wireless device for the first D2D device Information about the group identification of the group in which the D2D device of the communication service of the access device is located.
  • the wireless access device further includes:
  • the wireless access device further includes:
  • a fourth sending module configured to send, to the second D2D device, activation information, where the activation information is used to indicate that the D2D device that provides the first D2D device with the communication service of the wireless access device starts to provide the first D2D device Communication service with the wireless access device.
  • the wireless access device discovered by the device in the embodiment of the present invention receives the report message sent by the second D2D device, and determines whether the second D2D device can provide the first D2D device with the wireless access device.
  • Communication service whereby the first D2D device, through the assistance of the wireless access device, finds that the first D2D device can provide high quality D2D devices for communication with the wireless access device, and improves the first D2D device and the wireless device. Communication between access devices quality.
  • the second D2D device 1300 may correspond to the wireless access device in the method of device discovery according to an embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the wireless access device 1300 In order to achieve the corresponding processes of the foregoing various methods, for the sake of brevity, no further details are provided herein.
  • system 1500 includes:
  • the first D2D device 900 of the foregoing embodiment of the present invention, the second D2D device 1100 of the embodiment of the present invention, and the wireless access device 1300 of the embodiment of the present invention are identical to each other.
  • FIG. 10 shows a structure of a first D2D device according to still another embodiment of the present invention, including at least one processor 1702 (for example, a CPU), at least one network interface 1705 or other communication interface, a memory 1706, and at least one communication bus. 1703 for implementing connection communication between these devices.
  • the processor 1702 is configured to execute executable modules, such as computer programs, stored in the memory 1706.
  • the memory 1706 may include a high speed random access memory (RAM: Random Access Memory), and may also include a non-volatile memory such as at least one disk memory.
  • a communication connection with at least one other network element is achieved by at least one network interface 1705 (which may be wired or wireless).
  • memory 1706 stores program 17061, and processor 1702 executes program 17061 for performing some operations:
  • the discovery message is used to trigger the second D2D device to send a report message to the wireless access device, where the report message is used by the wireless access device to determine that the first D2D device is provided with the wireless access device D2D equipment for communication services;
  • the control message includes indication information indicating a D2D device that provides communication service with the wireless access device for the first D2D device.
  • the discovery message includes an identifier of the first D2D device.
  • the reporting message includes at least one of a channel quality between the first D2D device and the second D2D device, an identifier of the first D2D device, and an identifier of the second D2D device.
  • processor 1702 is specifically configured to:
  • the announcement message is used to notify the first D2D device of the existence of the second D2D device;
  • the sending of the discovery message includes:
  • the announcement message includes first power level information that is sent by the second D2D device to the announcement message;
  • the processor 1702 is also configured to:
  • the sending the discovery message to the second D2D device according to the announcement message includes:
  • the second D2D device Determining, according to the first power level information and the second power level information, that the second D2D device is a D2D device candidate capable of providing a communication service with the wireless access device for the first D2D device, and to the second D2D
  • the device sends the discovery message, where the discovery message includes the identifier of the second D2D device.
  • control message further includes: a physical resource occupied by the D2D device that provides the first D2D device with a communication service with the wireless access device, and provides the first D2D device with the The group ID of the group in which the D2D device of the communication service of the wireless access device is located.
  • the first D2D device sends a discovery message for triggering the second D2D device to send a report message to the wireless access device, so that the wireless access device determines the first message according to the report message.
  • the second D2D device can provide the first D2D device with the communication service with the wireless access device, so that the first D2D device, through the assistance of the wireless access device, finds that the first D2D device can be provided with the wireless access device
  • a high-quality D2D device that performs communication services improves the communication quality between the first D2D device and the wireless access device.
  • FIG. 11 shows a structure of a second D2D device according to still another embodiment of the present invention, including at least one processor 1902 (for example, a CPU), at least one network interface 1905 or other communication interface, a memory 1906, and at least one communication bus. 1903, used to implement connection communication between these devices.
  • the processor 1902 is configured to execute executable modules, such as computer programs, stored in the memory 1906.
  • the memory 1906 may include a high speed random access memory (RAM) and may also include a non-volatile memory such as at least one disk memory.
  • a communication connection with at least one other network element is achieved by at least one network interface 1905 (which may be wired or wireless).
  • memory 1906 stores program 19061, and processor 1902 executes program 19061 for performing some operations:
  • the device receives a discovery message sent by the first D2D device, where the discovery message is used to trigger the second D2D
  • the device sends a report message to the wireless access device, where the report message is used by the wireless access device to determine that the first D2D device provides a communication service with the wireless access device;
  • control message sent by the wireless access device, where the control message includes indication information indicating the D2D device that provides communication service with the wireless access device for the first D2D device.
  • the discovery message includes an identifier of the first D2D device.
  • the reporting message includes at least one of a channel quality between the first D2D device and the second D2D device, an identifier of the first D2D device, and an identifier of the second D2D device.
  • processor 1902 is further configured to:
  • Receiving the discovery message sent by the first D2D device including:
  • the announcement message includes first power level information that is sent by the second D2D device to the announcement message;
  • the receiving the discovery message sent by the first D2D device according to the announcement message includes:
  • the second D2D device Determining, by the first D2D device, that the second D2D device is capable of providing the first D2D device with the wireless access according to the first power level information and the second power level information of the second D2D device receiving the announcement message.
  • the second D2D device receives the discovery message sent by the first D2D device, and the discovery message includes the identifier of the second D2D device.
  • control message further includes: a physical resource occupied by the D2D device that provides the first D2D device with a communication service with the wireless access device, and provides the first D2D device with the The group ID of the group in which the D2D device of the communication service of the wireless access device is located.
  • control message further includes activation information, where the activation information is used to indicate that the D2D device that provides the communication service with the wireless access device for the first D2D device starts to be the first D2D.
  • the device provides communication services with the wireless access device.
  • the D2D device is configured to provide the first D2D device with a communication service with the wireless access device, and the indication information includes an identifier of the second D2D device.
  • the second D2D device receives the discovery message sent by the second D2D device, and sends a report message to the wireless access device according to the discovery message, so that the wireless access device selects the first message.
  • a D2D device provides a second D2D device that provides communication service with the wireless access device, so that the first D2D device can provide communication with the wireless access device for the first D2D device through assistance of the wireless access device.
  • High-quality D2D devices to improve the communication quality between the first D2D device and the wireless access device.
  • FIG. 12 shows a structure of a wireless access device according to still another embodiment of the present invention, including at least one processor 2102 (eg, a CPU), at least one network interface 1705 or other communication interface, a memory 2106, and at least one communication bus. 2103, used to implement connection communication between these devices.
  • the processor 2102 is configured to execute executable modules, such as computer programs, stored in the memory 2106.
  • the memory 2106 may include a high speed random access memory (RAM: Random Access Memory), and may also include a non-volatile memory such as at least one disk memory.
  • a communication connection with at least one other network element is achieved by at least one network interface 2105 (which may be wired or wireless).
  • the memory 2106 stores a program 21061, and the processor 2102 executes the program 21061 for performing some operations:
  • the control message including indication information indicating the D2D device that provides communication service with the wireless access device for the first D2D device.
  • processor 2102 is further configured to:
  • the indication information is sent to the second D2D device.
  • the indication information includes an identifier of the second D2D device.
  • the reporting message includes at least one of a channel quality between the first D2D device and the second D2D device, an identifier of the first D2D device, and an identifier of the second D2D device.
  • the message of the assistance group includes an index of the assistance group and an initial use resource.
  • the D2D device that determines whether the second D2D device can provide the first D2D device with the communication service of the wireless access device according to the report message includes:
  • processor 2102 is further configured to:
  • processor 2102 is further configured to:
  • activation information is used to indicate that the D2D device that provides the first D2D device with the communication service of the wireless access device starts to provide the first D2D device with the wireless access device Communication service.
  • the wireless access device receives the report message sent by the second D2D device, and determines whether the second D2D device can provide the first D2D device with the wireless access device.
  • the communication service so that the first D2D device, through the assistance of the wireless access device, finds that the first D2D device can provide a high-quality D2D device for communicating with the wireless access device, and improves the first D2D device and the wireless connection.
  • the quality of communication between devices is provided by the second D2D device.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be directed to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method in accordance with various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

本发明实施例提供了一种设备发现的方法,包括:第一D2D设备发送发现消息,该发现消息用于触发第二D2D设备向无线接入设备发送上报消息,其中,该上报消息用于该无线接入设备确定为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;该第一D2D设备接收该无线接入设备发送的控制消息,该控制消息包括指示信息,该指示信息指示为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备。本发明实施例第一D2D设备通过无线接入设备的辅助,发现能够为该第一D2D设备提供与该无线接入设备进行通信服务的高质量的D2D设备,从而提高了第一D2D设备与无线接入设备间的通信质量。

Description

设备发现的方法和设备 技术领域
本发明涉及通信领域,并且更具体地,涉及设备发现的方法、第一D2D设备、第二D2D设备和无线接入设备。
背景技术
设备到设备(device to device,D2D)通信系统中,某些D2D设备(例如,可穿戴设备)由于低功耗的要求,通常依赖于其它D2D设备(例如,手机设备)作为“中继”,与无线接入设备(例如蜂窝无线接入设备和无线局域网接入点)进行数据传输。然而这些D2D设备通常绑定用户的手机设备上,如果该用户的手机设备不在身边时,则不能与上述无线接入设备进行数据传输。
现有技术中,一个D2D设备(设为第一D2D设备)发现另一个D2D设备(设为第二D2D设备)的方式主要有两种。第一种方式是第二D2D设备通过广播的方式发送宣告消息,如果第一D2D设备收到该宣告消息即认为发现了该第二D2D设备。第二种方式是第一D2D设备通过广播的方式发送发现消息,如果第二D2D设备收到该发现消息后并给第一D2D设备发送响应消息,在上述第一D2D设备收到该响应消息时,则该第一D2D设备认为发现了该第二D2D设备。
然而,现有技术的发现机制中,上述第一D2D设备发现的第二D2D设备不能保证第一D2D设备与无线接入设备间的通信质量。
发明内容
本发明实施例提供一种设备发现的方法和设备,能够提高第一D2D设备与无线接入设备间的通信质量。
第一方面,提供了一种设备发现的方法,包括:
第一D2D设备发送发现消息,该发现消息用于触发第二D2D设备向无线接入设备发送上报消息,其中,该上报消息用于该无线接入设备确定为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;
该第一D2D设备接收该无线接入设备发送的控制消息,该控制消息包 括指示信息,该指示信息指示为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备。
结合第一方面,在第一方面的第一种可能的实现方式中,该发现消息包含该第一D2D设备的标识。
结合第一方面或第一方面的第一种可能的实现方式,在第一方面的第二种可能的实现方式中,该上报消息包含该第一D2D设备与该第二D2D设备之间的信道质量、该第一D2D设备的标识和第二D2D设备的标识的至少一项。
结合第一方面、第一方面的第一种可能的实现方式和第一方面的第二种可能的实现方式中的任一种可能的实现方式,在第一方面的第三种可能的实现方式中,该方法还包括:
在该第一D2D设备发送该发现消息之前,该第一D2D设备接收该第二D2D设备发送的宣告消息,该宣告消息用于通知该第一D2D设备该第二D2D设备的存在;
该第一D2D设备发送该发现消息,包括:
该第一D2D设备根据该宣告消息,向该第二D2D设备发送该发现消息。
结合第一方面的第三种可能的实现方式,在第一方面的第四种可能的实现方式中,该宣告消息包括该第二D2D设备发送该宣告消息的第一功率水平信息;
该方法还包括:该第一D2D设备确定接收该宣告消息的第二功率水平信息;
其中,该第一D2D设备根据该宣告消息,向该第二D2D设备发送该发现消息,包括:
该第一D2D设备根据该第一功率水平信息和该第二功率水平信息判断出该第二D2D设备为能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备候选,并向该第二D2D设备发送该发现消息,该发现消息中包含该第二D2D设备的标识。
结合第一方面或第一方面的第一种可能的实现方式至第一方面的第四种可能的实现方式中的任一种可能的实现方式,在第一方面的第五种可能的实现方式中,该控制消息还包括为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所占用的物理资源以及为该第一D2D设备提供与该 无线接入设备的通信服务的D2D设备所在组的组标识。
第二方面,提供了一种设备发现的方法,包括:
第二D2D设备接收第一D2D设备发送的发现消息,该发现消息用于触发该第二D2D设备向无线接入设备发送上报消息,其中,该上报消息用于该无线接入设备确定为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;
该第二D2D设备根据该发现消息向该无线接入设备发送该上报消息;
该第二D2D设备接收该无线接入设备发送的控制消息,该控制消息包括指示信息,该指示信息指示为该第一D2D设备提供与该无线接入设备的通信服务的该D2D设备。
结合第二方面,在第二方面的第一种可能的实现方式中,该发现消息包含该第一D2D设备的标识。
结合第二方面或第二方的第一种可能的实现方式,在第二方面的第二种可能的实现方式中,该上报消息包括该第一D2D设备与该第二D2D设备之间的信道质量、该第一D2D设备的标识、该第二D2D设备的标识的至少一项。
结合第二方面或第二方面的第一种可能的实现方式和第二方面的第二种可能的实现方式中的任一种可能的实现方式,在第二方面的第三种可能的实现方式中,该方法还包括:
在该第一D2D设备发送该发现消息之前,该第二D2D设备向该第一D2D设备发送宣告消息,该宣告消息用于通知该第一D2D设备该第二D2D设备的存在;
该第二D2D设备接收该第一D2D设备发送的发现消息,包括:
该第二D2D设备接收该第一D2D设备根据该宣告消息发送的该发现消息。
结合第二方面的第三种可能的实现方式,在第二方面的第四种可能的实现方式中,该宣告消息包括该第二D2D设备发送该宣告消息的第一功率水平信息;
其中,该第二D2D设备接收该第一D2D设备根据该宣告消息发送的该发现消息,包括:
在该第一D2D设备根据该第一功率水平信息和该第二D2D设备接收该 宣告消息的第二功率水平信息判断出该第二D2D设备为能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备候选的情况下,该第二D2D设备接收该第一D2D设备发送的该发现消息,该发现消息中包含该第二D2D设备的标识。
结合第二方面或第二方面的第一种可能的实现方式至第二方面的第四种可能的实现方式中的任意一种可能的实现方式,在第二方面的第五种可能的实现方式中,该控制消息还包括为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所占用的物理资源以及为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所在组的组标识。
结合第二方面或第二方面的第一种可能的实现方式至第二方面的第五种可能的实现方式中的任意一种可能的实现方式,在第二方面的第六种可能的实现方式中,该控制消息还包括激活信息,该激活信息用于指示为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备开始为该第一D2D设备提供与该无线接入设备的通信服务。
结合第二方面或第二方面的第一种可能的实现方式至第二方面的第六种可能的实现方式中的任意一种可能的实现方式,在第二方面的第七种可能的实现方式中,该控制消息还包括激活信息,该激活信息用于激活该第二D2D设备。
结合第二方面或第二方面的第一种可能的实现方式至第二方面的第七种可能的实现方式中的任意一种可能的实现方式,在第二方面的第八种可能的实现方式中,如果该无线接入设备根据该上报消息确定出该第二D2D设备是为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备,则该指示信息包含该第二D2D设备的标识。
第三方面,提供了一种设备发现的方法,包括:
无线接入设备接收第二D2D设备发送的上报消息,该上报消息用于该无线接入设备确定为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;
该无线接入设备根据该上报消息,确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;
如果是,该无线接入设备向第一D2D设备发送控制消息,该控制消息包括指示信息,该指示信息指示为该第一D2D设备提供与该无线接入设备 的通信服务的该D2D设备。
结合第三方面,在第三方面的第一种可能的实现方式中,该无线接入设备向该第二D2D设备发送该指示信息。
结合第三方面或第三方面的第一种可能的实现方式,在第三方面的第二种可能的实现方式中,该指示信息包含该第二D2D设备的标识。
结合第三方面或第三方面的第一种可能的实现方式和第三方面的第二种可能的实现方式中的任意一种可能的实现方式,在第三方面的第三种可能的实现方式中,该上报消息包括该第一D2D设备与该第二D2D设备之间的信道质量、该第一D2D设备的标识和第二D2D设备的标识的至少一项。
结合第三方面的第三种可能的实现方式,在第三方面的第四种可能的实现方式中,该无线接入设备根据该上报消息,确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备,包括:
该无线接入网设备根据该第一D2D设备与该第二D2D设备之间的信道质量,以及该无线接入设备与该第二D2D设备之间的信道质量,确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备。
结合第三方面或第三方面的第一种可能的实现方式至第三方面的第四种可能的实现方式中的任意一种可能的实现方式,在第三方面的第五种可能的实现方式中,该无线接入设备还向该第二D2D设备发送包括为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所占用的物理资源以及为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所在组的组标识的信息。
结合第三方面或第三方面的第一种可能的实现方式至第三方面的第五种可能的实现方式中的任意一种可能的实现方式,在第三方面的第六种可能的实现方式中,该无线接入设备还向该第二D2D设备发送激活信息,该激活信息用于指示为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备开始为该第一D2D设备提供与该无线接入设备的通信服务。
第四方面,提供了一种第一D2D设备,包括:
发送模块,用于发送发现消息,该发现消息用于触发第二D2D设备向无线接入设备发送上报消息,其中,该上报消息用于该无线接入设备确定为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;
第一接收模块,用于接收该无线接入设备发送的控制消息,该控制消息包括指示信息,该指示信息指示为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备。
结合第四方面,在第四方面的第一种可能的实现方式中,该发现消息包含该第一D2D设备的标识。
结合第四方面或第四方面的第一种可能的实现方式,在第四方面的第二种可能的实现方式中,该上报消息包含该第一D2D设备与该第二D2D设备之间的信道质量、该第一D2D设备的标识和第二D2D设备的标识的至少一项。
结合第四方面或第四方面的第一种实现方式和第四方面的第二种可能的实现方式中的任一种可能的实现方式,在第四方面的第三种可能的实现方式中,该第一D2D设备还包括:
第二接收模块,用于在该第一D2D设备发送该发现消息之前,接收该第二D2D设备发送的宣告消息,该宣告消息用于通知该第一D2D设备该第二D2D设备的存在;
该发送模块具体用于:
根据该宣告消息,向该第二D2D设备发送该发现消息。
结合第四方面的第三种可能的实现方式,在第四方面的第三种可能的实现方式中,该宣告消息包括该第二D2D设备发送该宣告消息的第一功率水平信息;
第一D2D设备还包括:
确定模块,用于确定接收该宣告消息的第二功率水平信息;
其中,该发送模块具体用于:
根据该第一功率水平信息和该第二功率水平信息判断出该第二D2D设备为能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备候选,并向该第二D2D设备发送该发现消息,该发现消息中包含该第二D2D设备的标识。
结合第四方面或第四方面的第一种可能的实现方式至第三种可能的实现方式中的任一种可能的实现方式,在第四方面的第四种可能的实现方式中,该控制消息还包括为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所占用的物理资源以及为该第一D2D设备提供与该无线接入 设备的通信服务的D2D设备所在组的组标识。
第五方面,提供了一种设备发现的第二D2D设备,包括:
第一接收模块,用于接收第一D2D设备发送的发现消息,该发现消息用于触发该第二D2D设备向无线接入设备发送上报消息,其中,该上报消息用于该无线接入设备确定为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;
第一发送模块,用于根据该第一接收模块接收的该发现消息向该无线接入设备发送该上报消息;
第二接收模块,用于接收该无线接入设备发送的控制消息,该控制消息包括指示信息,该指示信息指示为该第一D2D设备提供与该无线接入设备的通信服务的该D2D设备。
结合第五方面,在第五方面的第一种可能的实现方式中,该发现消息包含该第一D2D设备的标识。
结合第五方面或第五方面的第一种可能的实现方式,在第五方面的第二种可能的实现方式中,该上报消息包括该第一D2D设备与该第二D2D设备之间的信道质量、该第一D2D设备的标识、该第二D2D设备的标识的至少一项。
结合第五方面或第五方面的第一种可能的实现方式和第五方面的第二种可能的实现方式中的任一种可能的实现方式,在第五方面的第三种可能的实现方式中,该第二D2D设备还包括:
第二发送模块,用于在该第一D2D设备发送该发现消息之前,向该第一D2D设备发送宣告消息,该宣告消息用于通知该第一D2D设备该第二D2D设备的存在;
该第一接收模块具体用于:
接收该第一D2D设备根据该宣告消息发送的该发现消息。
结合第五方面的第三种可能的实现方式,在第五方面的第四种可能的实现方式中,该宣告消息包括该第二D2D设备发送该宣告消息的第一功率水平信息;
其中,该第一接收模块具体用于:
在该第一D2D设备根据该第一功率水平信息和该第二D2D设备接收该宣告消息的第二功率水平信息判断出该第二D2D设备为能够为该第一D2D 设备提供与该无线接入设备的通信服务的D2D设备候选的情况下,该第二D2D设备接收该第一D2D设备发送的该发现消息,该发现消息中包含该第二D2D设备的标识。
结合第五方面或第五方面的第一种可能的实现方式至第五方面的第四种可能的实现方式中的任一种可能的实现方式,在第五方面的第五种可能的实现方式中,该控制消息还包括为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所占用的物理资源以及为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所在组的组标识。
结合第五方面或第五方面的第一种可能的实现方式至第五方面的第五种可能的实现方式中的任一种可能的实现方式,在第五方面的第六种可能的实现方式中,该控制消息还包括激活信息,该激活信息用于指示为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备开始为该第一D2D设备提供与该无线接入设备的通信服务。
结合第五方面或第五方面的第一种可能的实现方式至第五方面的第六种可能的实现方式中的任一种可能的实现方式,在第五方面的第七种可能的实现方式中,该控制消息还包括激活信息,该激活信息用于指示为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备开始为该第一D2D设备提供与该无线接入设备的通信服务。
结合第五方面或第五方面的第一种可能的实现方式至第五方面的第七种可能的实现方式中的任一种可能的实现方式,在第五方面的第八种可能的实现方式中,如果该无线接入设备根据该上报消息确定出该第二D2D设备是为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备,则该指示信息包含该第二D2D设备的标识。
第六方面,提供了一种无线接入设备,包括:
接收模块,用于接收第二D2D设备发送的上报消息,该上报消息用于该无线接入设备确定为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;
确定模块,用于根据该接收模块接收的该上报消息,确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;
第一发送模块,用于根据该确定模块确定是,该无线接入设备向第一 D2D设备发送控制消息,该控制消息包括指示信息,该指示信息指示为该第一D2D设备提供与该无线接入设备的通信服务的该D2D设备。
结合第六方面,在第六方面的第一种可能的实现方式中,该无线接入设备还包括:
第二发送模块,用于向该第二D2D设备发送该指示信息。
结合第六方面或第六方面的第一种可能的实现方式,在第六方面的第二种可能的实现方式中,该指示信息包含该第二D2D设备的标识。
结合第六方面或第六方面的第一种可能的实现方式和第六方面的第二种可能的实现方式中的任一种可能的实现方式,在第六方面的第三种可能的实现方式中,该上报消息包括该第一D2D设备与该第二D2D设备之间的信道质量、该第一D2D设备的标识和第二D2D设备的标识的至少一项。
结合第六方面的第三种可能的实现方式,在第六方面的第四种可能的实现方式中,该确定模块具体用于:
根据该第一D2D设备与该第二D2D设备之间的信道质量,以及该无线接入设备与该第二D2D设备之间的信道质量,确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备。
结合第六方面或第六方面的第一种可能的实现方式至第六方面的第四种可能的实现方式,在第六方面的第五种可能的实现方式中,该无线接入设备还包括:
第三发送模块,用于向该第二D2D设备发送包括为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所占用的物理资源以及为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所在组的组标识的信息。
结合第六方面或第六方面的第一种可能的实现方式至第六方面的第五种可能的实现方式,在第六方面的第六种可能的实现方式中,该无线接入设备还包括:
第四发送模块,用于向该第二D2D设备发送激活信息,该激活信息用于指示为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备开始为该第一D2D设备提供与该无线接入设备的通信服务。
第七方面,提供了一种设备发现的系统,包括:上述第四方面的第一D2D设备、第五方面的第二D2D设备和第六方面的无线接入设备。
第八方面,提供了一种第一D2D设备,包括:处理器和存储器;
所述存储器存储了程序,所述处理器执行所述程序,用于执行上述第一方面或第一方面任一种可能的实现方式所述的设备发现的方法。
第九方面,提供了一种第二D2D设备,包括:处理器和存储器;
所述存储器存储了程序,所述处理器执行所述程序,用于执行上述第二方面或第二方面任一种可能的实现方式所述的设备发现的方法。
第十方面,提供了一种设备发现的无线接入设备,包括:处理器和存储器;所述存储器存储了程序,所述处理器执行所述程序,用于执行上述第三方面或第三方面任一种可能的实现方式所述的设备发现的方法。
基于上述技术方案,在本发明实施例中,第一D2D设备发送用于触发第二D2D设备向无线接入设备发送上报消息的发现消息,使该无线接入设备根据该上报消息确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务,从而第一D2D设备通过无线接入设备的辅助,发现能够为该第一D2D设备提供与该无线接入设备进行通信服务的可能高质量的D2D设备,提高了第一D2D设备与无线接入设备间的通信质量。
附图说明
为了更清楚地说明本发明实施例的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本发明实施例的一个应用场景的示意图。
图2是本发明一个实施例的设备发现的方法的示意性流程图。
图3是本发明另一个实施例的设备发现的方法的示意性流程图。
图4是本发明又一个实施例的设备发现的方法的示意性流程图。
图5是本发明一个实施例的设备发现的方法的交互流程示意图。
图6是本发明一个实施例的设备发现的方法的交互流程示意图。
图7是根据本发明一个实施例的第一D2D设备的示意性框图。
图8是根据本发明一个实施例的第二D2D设备的示意性框图。
图9是根据本发明一个实施例的无线接入设备的示意性框图。
图10是根据本发明实施例的系统的示意性框图。
图11是根据本发明另一个实施例的第一D2D设备的结构示意图。
图12是根据本发明另一个实施例的第二D2D设备的结构示意图。
图13是根据本发明另一个实施例的无线接入设备的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
本发明各个实施例的技术方案,按照接入制式来划分可以应用于各种通信系统,例如:全球移动通讯系统(Global System of Mobile communication,GSM),码分多址(Code Division Multiple Access,CDMA)系统,宽带码分多址(Wideband Code Division Multiple Access Wireless,WCDMA),通用分组无线业务(General Packet Radio Service,GPRS),长期演进(Long Term Evolution,LTE),LTE频分双工(Frequency Division Duplex,FDD)系统、LTE时分双工(Time Division Duplex,TDD)、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)等。在上述各个接入制式的通信系统中,本发明各个实施例主要用于这些制式下的D2D通信系统。
本发明各个实施例中,无线接入设备包括上述各个接入制式中的蜂窝无线接入设备,例如典型的就是各种宏基站和小基站(在英文中称为Small cell)。这些基站可以是GSM或CDMA中的基站(Base Transceiver Station,BTS),也可以是WCDMA中的基站(NodeB),还可以是LTE中的演进型基站(eNB或e-NodeB,evolutional Node B),本发明并不限定。当然,无线接入设备还可以包括无线局域网接入点,例如使用无线保真技术(Wi-Fi)技术的接入点。
本发明各个实施例中的D2D设备,主要包括使用D2D协议的各种用户设备(user equipment,UE)。
图1是本发明实施例的一个应用场景的示意图。如图1所示,用户设备(user equipment,UE)1、UE2、UE3、UE4和UE5位于基站服务的网络范围内,且上述用户设备都支持设备到设备(D2D)通信。D2D通信是指一个UE发送控制信息和数据,而其他UE通过读取控制信息得到后续的数据的 发送格式等信息,从而正确接收后续的数据。图1的场景中,UE1为距离基站较远的用户设备,UE1希望通过其他用户设备的帮助能够随时随地的与无线接入设备进行通信。在现有技术中,UE1发现的UE2不能保证UE1与无线接入设备间的通信质量。
应理解,图1的场景中需要寻求帮助的用户设备的数目,可以帮助其他用户设备与无线接入设备进行通信的用户设备的数目仅仅是示例性的,本发明实施例对此并不限定。例如,UE1可能找到一个或多个用户设备,或者有一个或多个用户设备需要其他用户设备的帮助,等等。
在本发明实施例中,将需要用户设备帮助与基站进行通信的UE称为第一D2D设备,该第一D2D设备可以是可穿戴设备,例如,智能手表,智能计步器等,也可以是电量受限或者对能耗敏感的终端设备等,本发明对此不进行限定。
在本发明实施例中,将可以帮助第一D2D设备与基站进行通信的用户设备称为第二D2D设备,并将可能被选中的D2D设备称为潜在D2D设备(或叫做D2D设备候选),第二D2D设备可以经过无线接入网(Radio Access Network,RAN)与一个或多个核心网进行通信,例如,第二D2D设备可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字处理(Personal Digital Assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备。本发明对此不作限定。
图2示出了根据本发明一个实施例的设备发现的方法100的示意图。该方法100由第一D2D设备执行。如图2所示,该方法100包括:
S110,第一D2D设备发送发现消息,该发现消息用于触发第二D2D设备向无线接入设备发送上报消息,其中,该上报消息用于该无线接入设备确定为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;
S120,该第一D2D设备接收该无线接入设备发送的控制消息,该控制消息包括指示信息,该指示信息指示为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备。
具体而言,第一D2D设备以广播的方式发送发现消息,该发现消息可以触发第二D2D设备向无线接入设备发送上报消息,这样无线接入设备可以根据该上报消息确定该第二D2D设备是否能够为该第一D2D设备提供与 该无线接入设备的通信服务。由于该第一D2D设备以广播的方式发送该发现消息,因此,该发现消息可能会触发不只一个D2D设备向无线接入设备发送上报消息,这样该无线接入设备可能接收到至少一个D2D设备发送的上报消息。进而使得该无线接入设备能够根据第一D2D设备和至少一个中的每个D2D设备之间的信道质量或拥塞状况等,以及该每个D2D设备和无线接入设备之间的信道质量或拥塞状况等,为该第一D2D设备选择至少一个与该无线接入设备进行通信服务的D2D设备。接收无线接入设备发送的控制消息,该控制消息中包括指示信息,该指示信息可以告知该第一D2D设备,该无线接入设备已经选中为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备,这样本发明实施例通过无线接入设备的辅助,可以提升第一D2D设备与无线接入设备间的通信质量。
此外,如果该无线接入设备为该第一D2D设备选择了多个D2D设备能够提供该第一D2D与该无线接入设备的通信服务,该多个D2D设备可以与该第一D2D设备组成一个协助组,该协助组内的所有D2D可以同时帮助第一D2D与无线接入设备进行通信。例如,第一D2D设备通过无线接入设备的辅助发现三个D2D设备与该第一D2D设备形成协助组,则第一D2D设备可以将一份数据同时发送给这三个D2D设备,进而通过各个D2D设备的转发,将数据发送给无线接入设备,无线接入设备对来自各个D2D设备的数据进行分集接收,进而可以提高数据接收的鲁棒性,保证传输数据的质量。
因此,本发明实施例的设备发现的方法,第一D2D设备发送用于触发第二D2D设备向无线接入设备发送上报消息的发现消息,使无线接入设备根据该上报消息确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务,从而第一D2D设备通过无线接入设备的辅助,发现能够为该第一D2D设备提供与该无线接入设备进行通信服务的高质量的D2D设备,提高了第一D2D设备与无线接入设备间的通信质量。
可选地,该控制消息还包括为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所占用的物理资源以及为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所在组的组标识。
具体而言,控制消息还可以携带为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所占用的物理资源以及为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所在协助组的组标识,例如,协 助组索引和初始使用资源。无线接入设备为协助组分配协助组的索引,也就是为该协助组规定一个唯一的标识ID,这样第一D2D设备可以将这个ID用作组播ID,从而同时将数据组播给协助组内的所有被无线接入设备选中的D2D设备。
通过无线接入设备对协助组中的第一D2D设备和所有被无线接入设备选中的D2D设备进行统一地初始使用资源的分配,使得第一D2D设备和所有被无线接入设备选中的D2D设备能够在约定的初始资源上启动传输过程,例如,进行数据传输前相关状态信息(调度请求、缓存状态报告等)的传输。这样可以避免现有技术中,仅依靠第二D2D设备和第一D2D设备之间的交互,无法借助无线接入设备进行后续传输相关的初始使用资源的统一分配的问题。
应理解,每个协助组中包括一个第一D2D设备,且该第一D2D设备能够得到该协助组中的所有被无线接入设备选中的D2D设备的同时帮助。但是一个能够帮助其他设备的D2D设备可以为多个需要帮助的D2D设备服务,即一个能够帮助其他设备的D2D设备可以与不同的需要帮助的D2D设备形成不同的协助组,本发明对此不进行限定。
例如,若第二D2D设备为第一D2D设备服务时,第一D2D设备和第二D2D设备按照无线接入设备分配的第一协助组的索引和第一初始使用资源发起通信;若第二D2D设备为第三D2D设备(即另一个需要帮助的D2D设备)服务时,第三D2D设备和第二D2D设备可以按照无线接入设备分配的第二协助组的索引和第二初始使用资源发起通信,本发明对此不进行限定。
可选地,该发现消息包含该第一D2D设备的标识。
具体而言,第一D2D设备向第二D2D设备发送的发现消息中可以携带第一D2D设备的标识,这样第二D2D设备可以确定哪个D2D设备寻求帮助。此外,该第二D2D设备向无线接入设备发送上报消息时,也会携带该第一D2D设备的标识,当通过无线接入设备的辅助为第一D2D设备确定与该无线接入设备进行通信服务的D2D设备后,无线接入设备可以根据该第一D2D设备的标识向第一D2D设备发送控制消息,以告知该第一D2D设备与哪些D2D设备组成协助组。
可选地,该上报消息还可以包含该第一D2D设备与该第二D2D设备之 间的信道质量和第二D2D设备的标识等,本发明对此不进行限定。
可选地,在本发明实施例中,该发现消息可以为发现请求消息,该发现请求消息包括低功耗发现指示信息。
例如,第一D2D设备可以通过广播的形式以低功率向第二D2D设备发送该发现请求消息,用于主动请求第二D2D设备的发现。该低功率表示第一D2D设备发送该发现请求消息的功率值小于或等于功率阈值。该发现请求消息包括低功耗发现指示信息,该低功耗发现指示信息可以触发第二D2D设备向无线接入设备发送上报消息,使得该无线接入设备根据该上报消息确定第二D2D设备是否能够为该第一D2D设备提供与无线接入设备进行通信服务,若该第二D2D设备被选中,那么该第二设备可以与第一D2D设备形成协助组。当存在多个D2D设备能够为该第一D2D设备提供与无线接入设备进行通信服务时,则这多个D2D设备与该第一D2D设备形成一个协助组,该协助组中的所有被无线接入设备选中的D2D设备能够同时帮助第一D2D设备与无线接入设备通信,从而提高第一D2D设备的通信质量。
第一D2D设备为了延长使用寿命,需要尽可能降低能耗。经过评估测试可知,通过降低第一D2D设备的发射功率可以显著减少其功耗。在本发明实施例中,第一D2D设备通过低功率发送发现请求消息以主动请求第二D2D设备的发现,能够避免现有技术中以尽可能大的功率发送发现消息,进一步降低了第一D2D设备的发射功率,从而减少第一D2D设备的功耗,延长第一D2D设备的使用寿命。
应理解,第一D2D设备以小于或等于功率阈值的功率发送该发现请求消息,是指第一D2D设备向该功率阈值所能达到的距离范围内发送广播消息(表示为发现请求消息),且该距离范围内是没有物质阻挡该发现请求消息的发送,或者是该距离范围内的物质是该发现请求消息可以穿透的,本发明对此不进行限定。
还应理解,第一D2D设备可以是周期性地发送该发现请求消息;或者第一D2D设备也可以是触发性地发送该发现请求消息,例如,若第一D2D设备在能耗受限或者有高通信质量需求等需要第二D2D设备帮助时,就可以触发第一D2D设备发送该发现请求消息。本发明对此不进行限定。
可选地,在该第一D2D设备发送该发现消息之前,该方法还包括:
该第一D2D设备接收该第二D2D设备发送的宣告消息,该宣告消息用 于通知该第一D2D设备该第二D2D设备的存在;
该第一D2D设备发送该发现消息,包括:
该第一D2D设备根据该宣告消息,向该第二D2D设备发送该发现消息。
具体而言,第一D2D设备通过接收宣告消息来发现第二D2D设备,并通过广播的形式发送发现消息以响应该宣告消息,使得第二D2D设备根据该发现消息向无线接入设备发送上报消息,进而无线接入设备可以根据该上报消息确定第二D2D设备是否能够为该第一D2D设备提供与无线接入设备进行通信服务,由此第一D2D设备能够通过无线接入设备的辅助发现能够提供与所述无线接入设备进行通信服务的D2D设备,从而提高第一D2D设备与无线接入设备间的通信质量。
应理解,第一D2D设备可以周期性的搜索潜在D2D设备,即周期性的接收宣告消息;或者第一D2D设备也可以触发性的接收宣告消息,例如,事件触发,即当第一D2D设备有需要D2D设备帮助的需求时,进行宣告消息的接收。本发明对此不进行限定。
还应理解,第一D2D设备还可以进行周期性地响应宣告消息;或者第一D2D设备也可以是触发性地响应宣告消息,例如,若第一D2D设备同时收到预先设定的一个固定数值个数的宣告消息,或者大于该固定数值个数的宣告消息,就可以进行一次宣告消息的响应。本发明对此不进行限定。
可选地,该宣告消息包含该第二D2D设备发送该宣告消息的第一功率水平信息;
该方法还包括:该第一D2D设备确定接收该宣告消息的第二功率水平信息;
其中,该第一D2D设备根据该宣告消息,向该第二D2D设备发送该发现消息,包括:
该第一D2D设备根据该第一功率水平信息和该第二功率水平信息判断出该第二D2D设备为能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备候选,并向该第二D2D设备发送该发现消息,该发现消息中包含该第二D2D设备的标识。
具体而言,第一D2D设备接收到第二D2D设备以长距离发现、中距离发现和短距离发现这三种功率水平中的任意一种发送的宣告消息时,第一D2D设备并不能根据接收到该宣告消息的信号强度确定第二D2D设备与第 一D2D设备的距离。例如,第一D2D设备接收到一个信号较强的宣告消息,可能是由于该宣告消息是由第二D2D设备以长距离发现的功率水平(即高功率)发送的,即第一D2D设备与发送该宣告消息的第二D2D设备的距离较远。因此,第一D2D设备仅根据接收宣告消息的信号强度,不能准确判断第二D2D设备与第一D2D设备之间的距离。
在本发明另一实施例中,若该宣告消息中包括第二D2D设备发射该宣告消息的第一功率水平信息时,第一D2D设备可以根据该第一功率水平信息和接收该宣告消息的第二功率水平信息综合判断满足距离条件的第二D2D设备。这样第一D2D设备就可以在发送该宣告消息的所有潜在D2D设备中确定离该第一D2D设备足够近的D2D设备,避免选中距离较远的D2D设备与无线接入设备进行通信,从而更进一步减少第一D2D设备的功耗。
第一D2D设备根据该第一功率水平信息和该第二功率水平信息确定该第二D2D设备与该第一D2D设备的距离较近,则以广播的方式向第二D2D设备发送用于响应宣告消息的发现消息,该发现消息中携带该第二D2D设备的标识。或者该第一D2D设备可以在该发现消息中携带包括该至少一个D2D设备的标识列表,第二D2D设备接收到该发现消息后,可以搜索自己是否在该标识列表中,标识列表中包含的第二D2D设备向无线接入设备发送上报消息,进而无线接入设备根据该上报消息确定第二D2D设备是否能够为该第一D2D设备提供与无线接入设备进行通信服务,由此第一D2D设备能够通过无线接入设备的辅助发现能够提供与所述无线接入设备进行通信服务的D2D设备,从而提高第一D2D设备与无线接入设备间的通信质量。
因此,本发明实施例的设备发现的方法,第一D2D设备发送用于触发第二D2D设备向无线接入设备发送上报消息的发现消息,使无线接入设备根据该上报消息选择确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务,从而第一D2D设备通过无线接入设备的辅助,发现能够为该第一D2D设备提供与该无线接入设备进行通信服务的高质量的D2D设备,提高了第一D2D设备与无线接入设备间的通信质量。
以上从第一D2D设备的角度详细描述了根据本发明实施例的设备发现的方法,下面将从第二D2D设备的角度描述根据本发明实施例的设备发现的方法。
图3示出了根据本发明一个实施例的设备发现的方法300的示意图。该 方法300由第二D2D设备执行。如图3所示,该方法300包括:
S310,第二D2D设备接收第一D2D设备发送的发现消息,该发现消息用于触发该第二D2D设备向无线接入设备发送上报消息,其中,该上报消息用于该无线接入设备确定为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;
S320,该第二D2D设备根据该发现消息向该无线接入设备发送该上报消息;
S330,该第二D2D设备接收该无线接入设备发送的控制消息,该控制消息包括指示信息,该指示信息指示为该第一D2D设备提供与该无线接入设备的通信服务的该D2D设备。
具体而言,第二D2D设备接收第一D2D设备发送的发现消息,该发现消息可以触发该第二D2D设备向无线接入设备发送上报消息,使得无线接入设备能够根据该第一D2D设备和该第二D2D设备之间的信道质量或拥塞状况等,以及该第二D2D设备和该无线接入设备之间的信道质量或拥塞状况等,确定第二D2D设备是否能够为该第一D2D设备提供与无线接入设备进行通信服务。若该第二D2D设备被选中,那么该第二设备可以与第一D2D设备形成协助组。该第二D2D设备接收无线接入设备发送的控制消息,根据该控制消息可以获知自己能够为哪个D2D设备提供与无线接入设备的通信服务。
因此,本发明实施例的设备发现的方法,第二D2D设备接收第二D2D设备发送的发现消息,根据该发现消息向无线接入设备发送上报消息,使得无线接入设备确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务,从而第一D2D设备通过无线接入设备的辅助,发现能够为该第一D2D设备提供与该无线接入设备进行通信服务的高质量的D2D设备,提高了第一D2D设备与无线接入设备间的通信质量。第一D2D设备与无线接入设备间的通信质量。
可选地,该控制消息还包括为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所占用的物理资源以及为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所在组的组标识。
具体而言,控制消息还可以携带为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所占用的物理资源以及为该第一D2D设备提供 与该无线接入设备的通信服务的D2D设备所在组的组标识,例如,协助组索引和初始使用资源。无线接入设备为协助组分配协助组的索引,也就是为该协助组规定一个唯一的标识ID,这样第一D2D设备可以将这个ID用作组播ID,从而同时将数据组播给协助组内的所有第二D2D设备。
无线接入设备可以对协助组中的第一D2D设备和所有第二D2D设备进行统一地初始使用资源的分配,使得第一D2D设备和第二D2D设备能够在约定的初始资源上启动传输过程,例如,进行数据传输前相关状态信息(调度请求、缓存状态报告等)的传输。这样可以避免现有技术中,仅依靠第二D2D设备和第一D2D设备之间的交互,无法借助无线接入设备进行后续传输相关的初始使用资源的统一分配的问题。
应理解,每个协助组中包括一个第一D2D设备,且该第一D2D设备能够得到该协助组中的所有被无线接入设备选中的D2D设备的同时帮助。但是一个能够帮助其他设备的D2D设备可以为多个需要帮助的D2D设备服务,即一个能够帮助其他设备的D2D设备可以与不同的需要帮助的D2D设备形成不同的协助组,本发明对此不进行限定。
例如,若第二D2D设备为第一D2D设备服务时,第一D2D设备和第二D2D设备按照无线接入设备分配的第一协助组的索引和第一初始使用资源发起通信;若第二D2D设备为第三D2D设备(即另一个需要帮助的D2D设备)服务时,第三D2D设备和第二D2D设备可以按照无线接入设备分配的第二协助组的索引和第二初始使用资源发起通信,本发明对此不进行限定。
可选地,该发现消息包含该第一D2D设备的标识。
具体而言,第二D2D设备接收第一D2D设备发送的发现消息,该发现消息中可以携带第一D2D设备的标识,这样第二D2D设备可以确定哪个D2D设备寻求帮助。此外,该第二D2D设备向无线接入设备发送上报消息时,也会携带该第一D2D设备的标识,当通过无线接入设备的辅助为第一D2D设备确定D2D设备后,无线接入设备可以根据该第一D2D设备的标识向第一D2D设备发送控制消息,以告知该第一D2D设备与哪些D2D设备组成协助组。
可选地,该上报消息还可以包含该第一D2D设备与该第二D2D设备之间的信道质量,以及第二D2D设备的标识。如果该无线接入设备根据该上 报消息确定出该第二D2D设备是为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备,则第二设备接收到该无线接入设备发送的指示信息中也会包含该第二D2D设备的标识。
具体而言,第二D2D设备根据接收的发现消息可以确定表示第一D2D设备与该第二D2D设备间信道质量的第一信道测量信息,并将该第一信道测量信息跟随上报消息发送到无线接入设备,使得无线接入设备能够获知第一D2D设备与发送该上报消息的第二D2D设备间的信道质量。
应理解,若第二D2D设备根据该第一信道测量信息确定该第二D2D设备与第一D2D设备之间的通信质量低于预设的阈值,即难以满足第一D2D设备的通信需求时,则该第二D2D设备也不会向无线接入设备发送上报消息,或者说即使该第二D2D设备向无线接入设备发送上报消息后,无线接入设备也不会选择该第二D2D设备服务第一D2D设备,本发明对此不进行限定。
可选地,该发现消息为发现请求消息,该发现请求消息包括低功耗发现指示信息;其中,该第二D2D设备根据该发现消息向无线接入设备发送上报消息,包括:该第二D2D设备根据该低功耗发现指示信息向该无线接入设备发送该上报消息。
具体而言,第二D2D设备可以是处于待机的状态,以监听者的身份监听是否有需要帮助的第一D2D设备发起发现请求消息。例如,第二D2D设备接收到该第一D2D设备以低功率发送的发现请求消息,表示该第二D2D设备在第一D2D设备以低功率发送发现消息所能覆盖的范围内。这样可以避免无线接入设备为第一D2D设备选中与第一D2D设备距离较远的第二D2D设备,减少了第一D2D设备的功耗。
该发现请求消息包括该低功耗发现指示信息,此时,该发现请求消息可以为直接触发,即只要第二D2D设备能够接收到该发现请求消息,根据该低功耗发现指示信息可以直接向无线接入设备发送上报消息,以使该无线接入设备根据该上报消息确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务。由此第一D2D设备能够通过无线接入设备的辅助发现能够与所述无线接入设备进行通信服务的D2D设备,从而提高第一D2D设备与无线接入设备间的通信质量。
在本发明实施例中,第二D2D设备接收第一D2D设备通过低功率发送 的发现请求消息,能够避免现有技术中第一D2D设备以尽可能大的功率发送发现消息,从而进一步降低第一D2D设备的发射功率,减少第一D2D设备的功耗,延长第一D2D设备的使用寿命。
可选地,在该第一D2D设备发送该发现消息之前,该方法还包括:
该第二D2D设备向该第一D2D设备发送宣告消息,该宣告消息用于通知该第一D2D设备该第二D2D设备的存在;
该第二D2D设备接收该第一D2D设备发送的发现消息,包括:
该第二D2D设备接收该第一D2D设备根据该宣告消息发送的该发现消息。
具体而言,第二D2D设备处于发现宣告状态,以广播的形式向外发送宣告消息宣告第二D2D设备的存在。第二D2D设备向第一D2D设备发送宣告消息,使得第一D2D设备可以通过接收该宣告消息来发现第二D2D设备,并通过发现消息响应该宣告消息。第二D2D设备根据该发现消息向无线接入设备发送上报消息,进而无线接入设备根据该上报消息确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务。由此第一D2D设备能够通过无线接入设备的辅助发现能够与所述无线接入设备进行通信服务的D2D设备,从而提高第一D2D设备与无线接入设备间的通信质量。
可选地,在本发明实施例中,该宣告消息包括该第二D2D设备发送该宣告消息的第一功率水平信息;
其中,该第二D2D设备接收该第一D2D设备根据该宣告消息发送的该发现消息,包括:
在该第一D2D设备根据该第一功率水平信息和该第二D2D设备接收该宣告消息的第二功率水平信息判断出该第二D2D设备为能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备候选的情况下,该第二D2D设备接收该第一D2D设备发送的该发现消息,该发现消息中包含该第二D2D设备的标识。
具体而言,在本发明另一实施例中,宣告消息包括发射该宣告消息的第一功率水平信息,第二D2D设备向第一D2D设备发送该宣告消息,使第一D2D设备根据该第一功率水平信息和接收到该宣告消息的第二功率水平信息,能够确定该第二D2D设备是否能够成为该第一D2D设备提供与该无线 接入设备的通信服务的D2D设备的候选。当第二D2D设备能够为该第一D2D设备提供与该无线接入设备的通信服务时,该第二D2D设备可以向该无线接入设备发送上报消息,从而避免无线接入设备为该第一D2D设备选到与第一D2D设备距离较远的D2D设备,减少了第一D2D设备的功耗。
第二D2D设备的标识信息可以通过标识列表体现。例如,第一D2D设备根据第一功率水平信息和第二功率水平信息确定至少一个D2D设备,并将该至少一个D2D设备列入标识列表中。第二D2D设备接收到响应宣告消息的发现消息时,检测该标识列表中是否包括该第二D2D设备,若确定在该标识列表中时,根据该标识信息向无线接入设备发送上报消息;若该第二D2D设备不在该标识列表中时,不发送上报消息。进而无线接入设备可以根据该上报消息选择D2D设备,由此第一D2D设备能够通过无线接入设备的辅助发现能够提供与所述无线接入设备进行通信服务的D2D设备,从而提高第一D2D设备与无线接入设备间的通信质量。
可选地,在本发明实施例中,该上报消息中还包括协助组形成请求信息,该协助组形成请求信息用于触发协助组的形成。即该协助组形成请求信息能够触发无线接入设备将选中的D2D设备与第一D2D设备形成协助组。
可选地,在本发明实施例中,该控制消息还包括激活信息,该激活信息用于指示为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备开始为该第一D2D设备提供与该无线接入设备的通信服务。
具体而言,该第二D2D设备接收该无线接入设备发送的控制消息,该控制消息还包括激活信息。协助组中的每个被无线接入设备选中的D2D设备都能够接收到无线接入设备发送的携带激活信息的控制消息。该激活信息能够激活协助组中的每个被无线接入设备选中的D2D设备,进而能够同时帮助第一D2D设备与无线接入设备的通信服务。
因此,本发明实施例的设备发现的方法,第二D2D设备接收第二D2D设备发送的发现消息,根据该发现消息向无线接入设备发送上报消息,使得无线接入设备确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务,从而第一D2D设备通过无线接入设备的辅助,发现能够为该第一D2D设备提供与该无线接入设备进行通信服务的高质量的D2D设备,提高了第一D2D设备与无线接入设备间的通信质量。
该方法300从第二D2D设备的角度详细描述了根据本发明实施例的设 备发现的方法,下面将从无线接入设备的角度描述根据本发明实施例的设备发现的方法。
图4示出了根据本发明一个实施例的设备发现的方法500的示意图。该方法500由无线接入设备执行。如图4所示,该方法500包括:
S510,无线接入设备接收第二D2D设备发送的上报消息,该上报消息用于该无线接入设备确定为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;
S520,该无线接入设备根据该上报消息,确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;
S530,如果是,该无线接入设备向第一D2D设备发送控制消息,该控制消息包括指示信息,该指示信息指示为该第一D2D设备提供与该无线接入设备的通信服务的该D2D设备。
具体而言,无线接入设备接收到一个D2D设备或多个D2D设备中的每个D2D设备发送的上报消息,并根据该上报消息在至少一个D2D设备中选择能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备,并将选中的D2D设备与第一D2D设备形成一个协助组,该协助组中被无线接入设备选中的所有D2D设备可以同时帮助第一D2D设备与无线接入设备的通信服务。无线接入设备可以向第一D2D设备发送包括该指示信息的控制消息,进而能够实现对协助组进行统一的指示信息的分配。
因此,本发明实施例的设备发现的方法,无线接入设备接收第二D2D设备发送的上报消息,确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务,从而第一D2D设备通过无线接入设备的辅助,发现能够为该第一D2D设备提供与该无线接入设备进行通信服务的高质量的D2D设备,提高了第一D2D设备与无线接入设备间的通信质量。
可选地,无线接入设备向协助组中的第一D2D设备发送第一指示信息,且同时向协助组中的每个第二D2D设备发送第二指示信息。或者,无线接入设备可以先向协助组中的第一D2D设备发送第一指示信息,再向协助组中的每个第二D2D设备发送第二指示信息。或者,无线接入设备也可以先向协助组中的每个第二D2D设备发送第二指示信息,再向协助组中的第一D2D设备发送第一指示信息,本发明对此不进行限定。
应理解,该第一指示信息和该第二指示信息可以相同,也可以不同,本 发明对此不进行限定。
可选地,该上报消息还可以包含该第一D2D设备与该第二D2D设备之间的信道质量,以及第二D2D设备的标识。当该无线接入设备根据该上报消息确定出该第二D2D设备是为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备,则该无线接入设备向第二D2D设备发送的指示信息中也会包含该第二D2D设备的标识。
可选地,该控制消息还包括为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所占用的物理资源以及为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所在组的组标识。
具体而言,控制消息还可以携带为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所占用的物理资源以及为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所在组的组标识,例如,协助组索引和初始使用资源。无线接入设备为协助组分配协助组的索引,也就是为该协助组规定一个唯一的标识ID,这样第一D2D设备可以将这个ID用作组播ID,从而同时将数据组播给协助组内的所有被无线接入设备选中的D2D设备。同时,通过无线接入设备对协助组中的第一D2D设备和所有被无线接入设备选中的D2D设备进行统一地初始使用资源的分配,使得第一D2D设备和第二D2D设备能够在约定的初始资源上启动传输过程,例如,进行数据传输前相关状态信息(调度请求、缓存状态报告等)的传输。这样可以避免现有技术中,仅依靠第二D2D设备和第一D2D设备之间的交互,无法借助无线接入设备进行后续传输相关的初始使用资源的统一分配的问题。
可选地,在本发明实施例中,该上报消息包括协助组形成请求信息。
具体而言,无线接入设备接收包括协助组形成请求信息的上报消息,该协助组形成请求信息用于触发协助组的形成。即该协助组形成请求信息能够触发无线接入设备将选中的D2D设备与第一D2D设备形成协助组。
可选地,在本发明实施例中,该无线接入设备根据该上报消息,确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备,包括:该无线接入网设备根据该第一D2D设备与该第二D2D设备之间的信道质量,以及该无线接入设备与该第二D2D设备之间的信道质量,确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备。
具体而言,无线接入设备根据该上报消息可以确定表示第二D2D设备与无线接入设备间信道质量的第二信道测量信息。上报消息携带表示第一D2D设备与第二D2D设备之间的信道质量的第一信道测量信息。无线接入设备根据该第二信道测量信息和该第一信道测量信息确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务。若该第二D2D设备被选中,那么该第二设备可以与第一D2D设备形成协助组。当存在多个D2D设备能够为该第一D2D设备提供与无线接入设备进行通信服务时,则这多个D2D设备与该第一D2D设备形成一个协助组,该协助组中的所有被无线接入设备选中的D2D设备能够同时帮助第一D2D设备与无线接入设备通信,从而提高第一D2D设备的通信质量。
例如,无线接入设备可以选择第一D2D设备与D2D设备间信道质量和该D2D设备与无线接入设备间的信道质量都高的D2D设备组成的集合,并将该集合中的所有D2D设备与该第一D2D设备形成一个协助组。
应理解,无线接入设备选择第一D2D设备与第二D2D设备间信道质量和该第二D2D设备与无线接入设备间的信道质量都高的第二D2D设备时,该信道质量的高低在具体实施时,可以预先设定一个质量阈值,当高于该质量阈值时可以认为是信道质量高;当低于该质量阈值时可以认为信道质量较差,在无线接入设备辅助第一D2D设备进行中继选择时就会放弃选择该第二D2D设备帮助第一D2D设备进行通信。
可选地,在本发明实施例中,该第二控制消息还包括激活信息,该激活信息用于指示为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备开始为该第一D2D设备提供与该无线接入设备的通信服务。
具体而言,无线接入设备向第二D2D设备发送控制消息,该控制消息还包括激活信息。协助组中的每个被无线接入设备选中的D2D设备都能够接收到无线接入设备发送的携带激活信息的控制消息。该激活信息能够激活协助组中的每个被无线接入设备选中的D2D设备,进而能够同时帮助第一D2D设备与无线接入设备的通信服务。
因此,本发明实施例的设备发现的方法,无线接入设备接收第二D2D设备发送的上报消息,确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务,从而第一D2D设备通过无线接入设备的辅助,发现能够为该第一D2D设备提供与该无线接入设备进行通信服务的 高质量的D2D设备,提高了第一D2D设备与无线接入设备间的通信质量。
应理解,在本发明的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本发明实施例的实施过程构成任何限定。
下面结合图5详细描述本发明实施例。应注意,这只是为了帮助本领域技术人员更好地理解本发明实施例,而非限制本发明实施例的范围。
在本发明的一个实施例中,第一D2D设备以低功耗向第二D2D设备发送发现请求消息,以主动请求发现第二D2D设备。第二D2D设备根据接收的发现请求消息可以确定第一D2D设备与该第二D2D设备间的第一信道测量信息,并将该第一信道测量信息随上报消息发送到无线接入设备,无线接入设备根据上报消息可以确定第二D2D设备与无线接入设备间的第二信道测量信息,进而根据该第二信道测量信息和该第一信道测量信息确定该第二D2D设备是否能够为该第一D2D提供与该无线接入设备的通信服务。无线接入设备向协助组中的第一D2D设备和第二D2D设备发送指示信息。
图5是本发明实施例的设备发现的交互流程示意图。本发明实施例中的各种术语的含义与前述各实施例相同。
701,第一D2D设备需要第二D2D设备帮助时,发送发现请求消息,该发现请求消息包括低功耗发现指示信息。
702,第二D2D设备接收该第一D2D设备发送的发现消息,并根据该发现请求消息确定第一信道测量信息。
703,第二D2D设备根据该低功耗发现指示信息向无线接入设备发送上报消息,该上报消息包括第一信道测量信息。
704,无线接入设备根据上报消息确定第二信道测量信息。
705,根据该第二信道测量信息和该第一信道测量信息确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备进行通信服务,若能够提供,则将该第二D2D设备与该第一D2D设备组成协助组,该协助组包括该第一D2D设备和该第二D2D设备。
706,无线接入设备向该第一D2D设备发送控制消息,该控制消息包括该指示信息。
707,无线接入设备向第二D2D设备发送该指示信息。
该第二控制消息还可以包括激活信息,该激活信息用于激活该第二D2D 设备,进而能够开始为所述第一D2D设备提供与所述无线接入设备的通信服务。
应理解,上述相应信息的具体指示方式可参考前述各实施例,为了简洁,在此不再赘述。
因此,本发明实施例的设备发现的方法,第一D2D设备发送用于触发第二D2D设备向无线接入设备发送上报消息的发现消息,使无线接入设备根据该上报消息确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务,从而第一D2D设备通过无线接入设备的辅助,发现能够为该第一D2D设备提供与该无线接入设备进行通信服务的高质量的D2D设备,提高了第一D2D设备与无线接入设备间的通信质量。
另一方面,本发明实施例的设备发现的方法,第一D2D设备以低功率发送发现请求消息,使得第一D2D设备能够选择与距离该第一D2D设备较近的第二D2D设备形成协助组,从而减少第一D2D设备的功耗。
应理解,在本发明的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本发明实施例的实施过程构成任何限定。
下面结合图6详细描述本发明实施例。应注意,这只是为了帮助本领域技术人员更好地理解本发明实施例,而非限制本发明实施例的范围。
在本发明的另一个实施例中,第一D2D设备接收宣告消息,该宣告消息中携带发射该宣告消息的第一功率水平信息,根据该第一功率水平信息和接收该宣告消息的第二功率水平信息可以出确定该第二D2D设备与该第一D2D设备距离较近,并通过广播的形式发送包括第二D2D设备的标识信息的发现消息以响应该宣告消息。第二D2D设备接收到该发现消息,根据该第二D2D设备的标识信息向无线接入设备发送上报消息。同时,第二D2D设备根据接收的该发现消息可以确定第一D2D设备与该第二D2D设备间的第一信道测量信息,并将该第一信道测量信息跟随上报消息发送到无线接入设备,无线接入设备根据上报消息可以确定第二D2D设备与无线接入设备间的第二信道测量信息,进而根据该第二信道测量信息和该第一信道测量信息确定该第二D2D设备是否能够为该第一D2D提供与该无线接入设备的通信服务。无线接入设备向第一D2D设备和第二D2D设备发送指示信息。
下面结合图6根据本发明另一实施例的设备发现的方法的交互流程示意 图。本发明实施例中的各种术语的含义与前述各实施例相同。
801,第一D2D设备接收宣告消息,该宣告消息包括发射该宣告消息的第一功率水平信息。
802,第一D2D设备根据该宣告消息和接收该宣告消息的第二功率水平信息,根据该第一功率水平信息和接收该宣告消息的第二功率水平信息可以出确定该第二D2D设备与该第一D2D设备距离较近。
803,第一D2D设备发送响应该宣告消息的发现消息,该发现消息包括该第二D2D设备的标识信息。
第二D2D设备的标识信息可以通过标识列表体现,潜在第二D2D设备接收到该发现消息后,可以搜索自己是否在该标识列表中,标识列表中包含的第二D2D设备向无线接入设备发送上报消息。
804,第二D2D设备根据该发现请求消息确定第一信道测量信息。
805,该第二D2D设备向该无线接入设备发送该上报消息,该上报消息包括第一信道测量信息。
806,无线接入设备根据上报消息确定第二信道测量信息.
807,根据该第二信道测量信息和该第一信道测量信息确定出该第二D2D设备能够为该第一D2D提供与该无线接入设备的通信服务。
808,无线接入设备向该第一D2D设备发送控制消息,该控制消息包括该指示信息。
809,无线接入设备向该第二D2D设备发送该指示信息。
该第二控制消息还可以包括激活信息,该激活信息用于激活该第二D2D设备,进而能够开始为所述第一D2D设备提供与所述无线接入设备的通信服务。
应理解,上述相应信息的具体指示方式可参考前述各实施例,为了简洁,在此不再赘述。
因此,本发明实施例的设备发现的方法,第一D2D设备发送用于触发第二D2D设备向无线接入设备发送上报消息的发现消息,使无线接入设备根据该上报消息确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务,从而第一D2D设备通过无线接入设备的辅助,发现能够为该第一D2D设备提供与该无线接入设备进行通信服务的高质量的D2D设备,提高了第一D2D设备与无线接入设备间的通信质量。
另一方面,本发明实施例的设备发现的方法,第一D2D设备接收宣告消息,该宣告消息携带发射该宣告消息的第一功率水平信息,根据接收该宣告消息的第二功率水平信息和该第一功率水平信息确定第二D2D设备与该第一D2D设备的距离,使得第一D2D设备能够选择与距离该第一D2D设备较近的D2D设备,从而减少第一D2D设备的功耗。
应理解,在本发明的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本发明实施例的实施过程构成任何限定。
上文中详细描述了根据本发明实施例的设备发现的方法,下面将描述根据本发明实施例的第一D2D设备、第二D2D设备和无线接入设备。
图7示出了根据本发明实施例的第一D2D设备900的示意性框图。如图7所示,该第一D2D设备900包括:
发送模块910,用于发送发现消息,该发现消息用于触发第二D2D设备向无线接入设备发送上报消息,其中,该上报消息用于该无线接入设备确定为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;
第一接收模块920,用于接收该无线接入设备发送的控制消息,该控制消息包括指示信息,该指示信息指示为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备。
因此,本发明实施例的设备发现的第一D2D设备,第一D2D设备发送用于触发第二D2D设备向无线接入设备发送上报消息的发现消息,使无线接入设备根据该上报消息确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务,从而第一D2D设备通过无线接入设备的辅助,发现能够为该第一D2D设备提供与该无线接入设备进行通信服务的高质量的D2D设备,提高了第一D2D设备与无线接入设备间的通信质量。
可选地,在本发明实施例中,该发现消息包含该第一D2D设备的标识。
在本发明实施例中,可选地,该第一D2D设备900还包括:
该上报消息包含该第一D2D设备与该第二D2D设备之间的信道质量、该第一D2D设备的标识和第二D2D设备的标识的至少一项。
可选地,该第一D2D设备还包括:
第二接收模块,用于在该第一D2D设备发送该发现消息之前,接收该第二D2D设备发送的宣告消息,该宣告消息用于通知该第一D2D设备该第 二D2D设备的存在;
该发送模块具体用于:
根据该宣告消息,向该第二D2D设备发送该发现消息。
可选地,在本发明实施例中,该宣告消息包括该第二D2D设备发送该宣告消息的第一功率水平信息;
第一D2D设备还包括:
确定模块,用于确定接收该宣告消息的第二功率水平信息;
其中,该发送模块具体用于:
根据该第一功率水平信息和该第二功率水平信息判断出该第二D2D设备为能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备候选,并向该第二D2D设备发送该发现消息,该发现消息中包含该第二D2D设备的标识。
在本发明实施例中,可选地,该控制消息还包括为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所占用的物理资源以及为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所在组的组标识。
根据本发明实施例的设备900可对应于根据本发明实施例的设备发现的方法中的第一D2D设备,并且设备900中的各个模块的上述和其它操作和/或功能分别为了实现前述各个方法的相应流程,为了简洁,在此不再赘述。
因此,本发明实施例的设备发现的第一D2D设备,第一D2D设备发送用于触发第二D2D设备向无线接入设备发送上报消息的发现消息,使无线接入设备根据该上报消息确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务,从而第一D2D设备通过无线接入设备的辅助,发现能够为该第一D2D设备提供与该无线接入设备进行通信服务的高质量的D2D设备,提高了第一D2D设备与无线接入设备间的通信质量。
图8示出了根据本发明实施例的第二D2D设备1100的示意性框图。如图8所示,该第二D2D设备1100包括:
第一接收模块1110,用于接收第一D2D设备发送的发现消息,该发现消息用于触发该第二D2D设备向无线接入设备发送上报消息,其中,该上报消息用于该无线接入设备确定为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;
第一发送模块1120,用于根据该第一接收模块1110接收的该发现消息向该无线接入设备发送该上报消息;
第二接收模块1130,用于接收该无线接入设备发送的控制消息,该控制消息包括指示信息,该指示信息指示为该第一D2D设备提供与该无线接入设备的通信服务的该D2D设备。
因此,本发明实施例的设备发现的第二D2D设备,第二D2D设备接收第二D2D设备发送的发现消息,根据该发现消息向无线接入设备发送上报消息,使得无线接入设备选择为该第一D2D设备提供与该无线接入设备的通信服务的第二D2D设备,使得第一D2D设备通过无线接入设备的辅助,发现能够为该第一D2D设备提供与该无线接入设备进行通信服务的高质量的D2D设备,从而提高第一D2D设备与无线接入设备间的通信质量。
可选地,该发现消息包含该第一D2D设备的标识。
在本发明实施例中,可选地,该上报消息包括该第一D2D设备与该第二D2D设备之间的信道质量、该第一D2D设备的标识、该第二D2D设备的标识的至少一项。
可选地,在本发明实施例中,该第二D2D设备1100还包括:
第二发送模块,用于在该第一D2D设备发送该发现消息之前,向该第一D2D设备发送宣告消息,该宣告消息用于通知该第一D2D设备该第二D2D设备的存在;
该第一接收模块具体用于:
接收该第一D2D设备根据该宣告消息发送的该发现消息。
可选地,在本发明实施例中,该宣告消息包括该第二D2D设备发送该宣告消息的第一功率水平信息;
其中,该第一接收模块具体用于:
在该第一D2D设备根据该第一功率水平信息和该第二D2D设备接收该宣告消息的第二功率水平信息判断出该第二D2D设备为能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备候选的情况下,该第二D2D设备接收该第一D2D设备发送的该发现消息,该发现消息中包含该第二D2D设备的标识。
在本发明实施例中,可选地,该控制消息还包括为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所占用的物理资源以及为该第 一D2D设备提供与该无线接入设备的通信服务的D2D设备所在组的组标识。
可选地,在本发明实施例中,该控制消息还包括激活信息,该激活信息用于指示为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备开始为该第一D2D设备提供与该无线接入设备的通信服务。
可选地,在本发明实施例中,该控制消息还包括激活信息,该激活信息用于指示为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备开始为该第一D2D设备提供与该无线接入设备的通信服务。
在本发明实施例中,可选地,如果该无线接入设备根据该上报消息确定出该第二D2D设备是为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备,则该指示信息包含该第二D2D设备的标识。
因此,本发明实施例的设备发现的第二D2D设备,第二D2D设备接收第二D2D设备发送的发现消息,根据该发现消息向无线接入设备发送上报消息,使得无线接入设备选择为该第一D2D设备提供与该无线接入设备的通信服务的第二D2D设备,使得第一D2D设备通过无线接入设备的辅助,发现能够为该第一D2D设备提供与该无线接入设备进行通信服务的高质量的D2D设备,从而提高第一D2D设备与无线接入设备间的通信质量。
根据本发明实施例的第二D2D设备1100可对应于根据本发明实施例的设备发现的方法中的第二D2D设备,并且第二D2D设备1100中的各个模块的上述和其它操作和/或功能分别为了实现前述各个方法的相应流程,为了简洁,在此不再赘述。
图9示出了根据本发明实施例的无线接入设备1300的示意性框图。如图9所示,该无线接入设备1300包括:
接收模块1310,用于接收第二D2D设备发送的上报消息,该上报消息用于该无线接入设备确定为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;
确定模块1320,用于根据该接收模块接收的该上报消息,确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;
第一发送模块1330,用于根据该确定模块确定是,该无线接入设备向第一D2D设备发送控制消息,该控制消息包括指示信息,该指示信息指示为 该第一D2D设备提供与该无线接入设备的通信服务的该D2D设备。
因此,本发明实施例的设备发现的无线接入设备,无线接入设备接收第二D2D设备发送的上报消息,确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务,从而第一D2D设备通过无线接入设备的辅助,发现能够为该第一D2D设备提供与该无线接入设备进行通信服务的高质量的D2D设备,提高了第一D2D设备与无线接入设备间的通信质量。
在本发明实施例中,可选地,该无线接入设备还包括:
第二发送模块,用于向该第二D2D设备发送该指示信息。
可选地,在本发明实施例中,该指示信息包含该第二D2D设备的标识。
可选地,在本发明实施例中,该上报消息包括该第一D2D设备与该第二D2D设备之间的信道质量、该第一D2D设备的标识和第二D2D设备的标识的至少一项。
在本发明实施例中,可选地,该确定模块具体用于:
根据该第一D2D设备与该第二D2D设备之间的信道质量,以及该无线接入设备与该第二D2D设备之间的信道质量,确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备。
可选地,在本发明实施例中,该无线接入设备还包括:
第三发送模块,用于向该第二D2D设备发送包括为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所占用的物理资源以及为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所在组的组标识的信息。该无线接入设备还包括:
可选地,在本发明实施例中,该无线接入设备还包括:
第四发送模块,用于向该第二D2D设备发送激活信息,该激活信息用于指示为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备开始为该第一D2D设备提供与该无线接入设备的通信服务。
因此,本发明实施例的设备发现的无线接入设备,无线接入设备接收第二D2D设备发送的上报消息,确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务,从而第一D2D设备通过无线接入设备的辅助,发现能够为该第一D2D设备提供与该无线接入设备进行通信服务的高质量的D2D设备,提高了第一D2D设备与无线接入设备间的通信 质量。
根据本发明实施例的第二D2D设备1300可对应于根据本发明实施例的设备发现的方法中的无线接入设备,并且无线接入设备1300中的各个模块的上述和其它操作和/或功能分别为了实现前述各个方法的相应流程,为了简洁,在此不再赘述。
本发明实施例还提供了一种系统。如图8所示,系统1500包括:
前述本发明实施例的第一D2D设备900、本发明实施例的第二D2D设备1100和本发明实施例的无线接入设备1300。
图10示出了本发明的又一实施例提供的第一D2D设备的结构,包括至少一个处理器1702(例如CPU),至少一个网络接口1705或者其他通信接口,存储器1706,和至少一个通信总线1703,用于实现这些装置之间的连接通信。处理器1702用于执行存储器1706中存储的可执行模块,例如计算机程序。存储器1706可能包含高速随机存取存储器(RAM:Random Access Memory),也可能还包括非不稳定的存储器(non-volatile memory),例如至少一个磁盘存储器。通过至少一个网络接口1705(可以是有线或者无线)实现与至少一个其他网元之间的通信连接。
在一些实施方式中,存储器1706存储了程序17061,处理器1702执行程序17061,用于执行一些操作:
发送发现消息,该发现消息用于触发第二D2D设备向无线接入设备发送上报消息,其中,该上报消息用于该无线接入设备确定为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;
接收该无线接入设备发送的控制消息,该控制消息包括指示信息,该指示信息指示为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备。
可选地,该发现消息包含该第一D2D设备的标识。
可选地,该上报消息包含该第一D2D设备与该第二D2D设备之间的信道质量、该第一D2D设备的标识和第二D2D设备的标识的至少一项。
可选地,处理器1702具体用于:
在该第一D2D设备发送该发现消息之前,接收该第二D2D设备发送的宣告消息,该宣告消息用于通知该第一D2D设备该第二D2D设备的存在;
该发送该发现消息,包括:
根据该宣告消息,向该第二D2D设备发送该发现消息。
可选地,该宣告消息包含该第二D2D设备发送该宣告消息的第一功率水平信息;
处理器1702还用于:
确定接收该宣告消息的第二功率水平信息;
其中,该根据该宣告消息,向该第二D2D设备发送该发现消息,包括:
根据该第一功率水平信息和该第二功率水平信息判断出该第二D2D设备为能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备候选,并向该第二D2D设备发送该发现消息,该发现消息中包含该第二D2D设备的标识。
可选地,在本发明实施例中,该控制消息还包括为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所占用的物理资源以及为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所在组的组标识。
从本发明实施例提供的以上技术方案可以看出,第一D2D设备发送用于触发第二D2D设备向无线接入设备发送上报消息的发现消息,使无线接入设备根据该上报消息确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务,从而第一D2D设备通过无线接入设备的辅助,发现能够为该第一D2D设备提供与该无线接入设备进行通信服务的高质量的D2D设备,提高了第一D2D设备与无线接入设备间的通信质量。
图11示出了本发明的又一实施例提供的第二D2D设备的结构,包括至少一个处理器1902(例如CPU),至少一个网络接口1905或者其他通信接口,存储器1906,和至少一个通信总线1903,用于实现这些装置之间的连接通信。处理器1902用于执行存储器1906中存储的可执行模块,例如计算机程序。存储器1906可能包含高速随机存取存储器(RAM:Random Access Memory),也可能还包括非不稳定的存储器(non-volatile memory),例如至少一个磁盘存储器。通过至少一个网络接口1905(可以是有线或者无线)实现与至少一个其他网元之间的通信连接。
在一些实施方式中,存储器1906存储了程序19061,处理器1902执行程序19061,用于执行一些操作:
接收第一D2D设备发送的发现消息,该发现消息用于触发该第二D2D 设备向无线接入设备发送上报消息,其中,该上报消息用于该无线接入设备确定为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;
根据该发现消息向该无线接入设备发送该上报消息;
接收该无线接入设备发送的控制消息,该控制消息包括指示信息,该指示信息指示为该第一D2D设备提供与该无线接入设备的通信服务的该D2D设备。
可选地,该发现消息包含该第一D2D设备的标识。
可选地,该上报消息包括该第一D2D设备与该第二D2D设备之间的信道质量、该第一D2D设备的标识、该第二D2D设备的标识的至少一项。
可选地,处理器1902还用于:
向该第一D2D设备发送宣告消息,该宣告消息用于通知该第一D2D设备该第二D2D设备的存在;
接收该第一D2D设备发送的发现消息,包括:
接收该第一D2D设备根据该宣告消息发送的该发现消息。
可选地,该宣告消息包括该第二D2D设备发送该宣告消息的第一功率水平信息;
其中,该接收该第一D2D设备根据该宣告消息发送的该发现消息,包括:
在该第一D2D设备根据该第一功率水平信息和该第二D2D设备接收该宣告消息的第二功率水平信息判断出该第二D2D设备为能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备候选的情况下,该第二D2D设备接收该第一D2D设备发送的该发现消息,该发现消息中包含该第二D2D设备的标识。
可选地,在本发明实施例中,该控制消息还包括为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所占用的物理资源以及为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所在组的组标识。
在本发明实施例中,可选地,该控制消息还包括激活信息,该激活信息用于指示为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备开始为该第一D2D设备提供与该无线接入设备的通信服务。
可选地,如果该无线接入设备根据该上报消息确定出该第二D2D设备 是为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备,则该指示信息包含该第二D2D设备的标识。
从本发明实施例提供的以上技术方案可以看出,第二D2D设备接收第二D2D设备发送的发现消息,根据该发现消息向无线接入设备发送上报消息,使得无线接入设备选择为该第一D2D设备提供与该无线接入设备的通信服务的第二D2D设备,使得第一D2D设备通过无线接入设备的辅助,发现能够为该第一D2D设备提供与该无线接入设备进行通信服务的高质量的D2D设备,从而提高第一D2D设备与无线接入设备间的通信质量。
图12示出了本发明的又一实施例提供的无线接入设备的结构,包括至少一个处理器2102(例如CPU),至少一个网络接口1705或者其他通信接口,存储器2106,和至少一个通信总线2103,用于实现这些装置之间的连接通信。处理器2102用于执行存储器2106中存储的可执行模块,例如计算机程序。存储器2106可能包含高速随机存取存储器(RAM:Random Access Memory),也可能还包括非不稳定的存储器(non-volatile memory),例如至少一个磁盘存储器。通过至少一个网络接口2105(可以是有线或者无线)实现与至少一个其他网元之间的通信连接。
在一些实施方式中,存储器2106存储了程序21061,处理器2102执行程序21061,用于执行一些操作:
接收第二D2D设备发送的上报消息,该上报消息用于该无线接入设备确定为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;
根据该上报消息,确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备;
如果是,向第一D2D设备发送控制消息,该控制消息包括指示信息,该指示信息指示为该第一D2D设备提供与该无线接入设备的通信服务的该D2D设备。
可选地,处理器2102还用于:
向该第二D2D设备发送该指示信息。
可选地,该指示信息包含该第二D2D设备的标识。
可选地,该上报消息包含该第一D2D设备与该第二D2D设备之间的信道质量、该第一D2D设备的标识和第二D2D设备的标识的至少一项。
可选地,该协助组的消息包括该协助组的索引和初始使用资源。
可选地,该根据该上报消息,确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备,包括:
根据该第一D2D设备与该第二D2D设备之间的信道质量,以及该无线接入设备与该第二D2D设备之间的信道质量,确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备。
可选地,处理器2102还用于:
向该第二D2D设备发送包括为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所占用的物理资源以及为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备所在组的组标识的信息。
可选地,处理器2102还用于:
向该第二D2D设备发送激活信息,该激活信息用于指示为该第一D2D设备提供与该无线接入设备的通信服务的D2D设备开始为该第一D2D设备提供与该无线接入设备的通信服务。
从本发明实施例提供的以上技术方案可以看出,无线接入设备接收第二D2D设备发送的上报消息,确定该第二D2D设备是否能够为该第一D2D设备提供与该无线接入设备的通信服务,从而第一D2D设备通过无线接入设备的辅助,发现能够为该第一D2D设备提供与该无线接入设备进行通信服务的高质量的D2D设备,提高了第一D2D设备与无线接入设备间的通信质量。
应理解,本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
应理解,在本发明的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本发明实施例的实施过程构成任何限定。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,该单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本发明各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本发明各个实施例该方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以该权利要求的保护范围为准。

Claims (30)

  1. 一种设备发现的方法,其特征在于,包括:
    第一D2D设备发送发现消息,所述发现消息用于触发第二D2D设备向无线接入设备发送上报消息,其中,所述上报消息用于所述无线接入设备确定为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备;
    所述第一D2D设备接收所述无线接入设备发送的控制消息,所述控制消息包括指示信息,所述指示信息指示为所述第一D2D设备提供与所述无线接入设备的通信服务的所述D2D设备。
  2. 根据权利要求1所述的方法,其特征在于,所述发现消息包含所述第一D2D设备的标识。
  3. 根据权利要求1或2所述的方法,其特征在于,所述上报消息包含所述第一D2D设备与所述第二D2D设备之间的信道质量、所述第一D2D设备的标识和第二D2D设备的标识的至少一项。
  4. 根据权利要求1至3中任一项所述的方法,其特征在于,在所述第一D2D设备发送所述发现消息之前,所述方法还包括:
    所述第一D2D设备接收所述第二D2D设备发送的宣告消息,所述宣告消息用于通知所述第一D2D设备所述第二D2D设备的存在;
    所述第一D2D设备发送所述发现消息,包括:
    所述第一D2D设备根据所述宣告消息,向所述第二D2D设备发送所述发现消息。
  5. 根据权利要求4所述的方法,其特征在于,所述宣告消息包含所述第二D2D设备发送所述宣告消息的第一功率水平信息;
    所述方法还包括:
    所述第一D2D设备确定接收所述宣告消息的第二功率水平信息;
    其中,所述第一D2D设备根据所述宣告消息,向所述第二D2D设备发送所述发现消息,包括:
    所述第一D2D设备根据所述第一功率水平信息和所述第二功率水平信息判断出所述第二D2D设备为能够为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备候选,并向所述第二D2D设备发送所述发现消息,所述发现消息中包含所述第二D2D设备的标识。
  6. 根据权利要求1至5中任一项所述的方法,其特征在于,所述控制 消息还包括为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备所占用的物理资源以及为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备所在组的组标识。
  7. 一种设备发现的方法,其特征在于,包括:
    第二D2D设备接收第一D2D设备发送的发现消息,所述发现消息用于触发所述第二D2D设备向无线接入设备发送上报消息,其中,所述上报消息用于所述无线接入设备确定为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备;
    所述第二D2D设备根据所述发现消息向所述无线接入设备发送所述上报消息;
    所述第二D2D设备接收所述无线接入设备发送的控制消息,所述控制消息包括指示信息,所述指示信息指示为所述第一D2D设备提供与所述无线接入设备的通信服务的所述D2D设备。
  8. 根据权利要求7所述的方法,其特征在于,所述发现消息包含所述第一D2D设备的标识。
  9. 根据权利要求7或8所述的方法,其特征在于,所述上报消息包含所述第一D2D设备与所述第二D2D设备之间的信道质量、所述第一D2D设备的标识、所述第二D2D设备的标识的至少一项。
  10. 根据权利要求7至9中任一项所述的方法,其特征在于,在所述第一D2D设备发送所述发现消息之前,所述方法还包括:
    所述第二D2D设备向所述第一D2D设备发送宣告消息,所述宣告消息用于通知所述第一D2D设备所述第二D2D设备的存在;
    所述第二D2D设备接收所述第一D2D设备发送的发现消息,包括:
    所述第二D2D设备接收所述第一D2D设备根据所述宣告消息发送的所述发现消息。
  11. 根据权利要求10所述的方法,其特征在于,所述宣告消息包括所述第二D2D设备发送所述宣告消息的第一功率水平信息;
    其中,所述第二D2D设备接收所述第一D2D设备根据所述宣告消息发送的所述发现消息,包括:
    在所述第一D2D设备根据所述第一功率水平信息和所述第二D2D设备接收所述宣告消息的第二功率水平信息判断出所述第二D2D设备为能够为 所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备候选的情况下,所述第二D2D设备接收所述第一D2D设备发送的所述发现消息,所述发现消息中包含所述第二D2D设备的标识。
  12. 根据权利要求7至11中任一项所述的方法,其特征在于,所述控制消息还包括为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备所占用的物理资源以及为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备所在组的组标识。
  13. 根据权利要求7至12中任一项所述的方法,其特征在于,所述控制消息还包括激活信息,所述激活信息用于指示为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备开始为所述第一D2D设备提供与所述无线接入设备的通信服务。
  14. 根据权利要求7至13中任一项所述的方法,其特征在于,如果所述无线接入设备根据所述上报消息确定出所述第二D2D设备是为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备,则所述指示信息包含所述第二D2D设备的标识。
  15. 一种设备发现的方法,其特征在于,包括:
    无线接入设备接收第二D2D设备发送的上报消息,所述上报消息用于所述无线接入设备确定为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备;
    所述无线接入设备根据所述上报消息,确定所述第二D2D设备是否能够为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备;
    如果是,所述无线接入设备向第一D2D设备发送控制消息,所述控制消息包括指示信息,所述指示信息指示为所述第一D2D设备提供与所述无线接入设备的通信服务的所述D2D设备。
  16. 根据权利要求15所述的方法,其特征在于,还包括:
    所述无线接入设备向所述第二D2D设备发送所述指示信息。
  17. 根据权利要求15或16所述的方法,其特征在于,所述指示信息包含所述第二D2D设备的标识。
  18. 根据权利要求15至17中任一项所述的方法,其特征在于,所述上报消息包括所述第一D2D设备与所述第二D2D设备之间的信道质量、所述第一D2D设备的标识和第二D2D设备的标识的至少一项。
  19. 根据权利要求18所述的方法,其特征在于,所述无线接入设备根据所述上报消息,确定所述第二D2D设备是否能够为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备,包括:
    所述无线接入网设备根据所述第一D2D设备与所述第二D2D设备之间的信道质量,以及所述无线接入设备与所述第二D2D设备之间的信道质量,确定所述第二D2D设备是否能够为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备。
  20. 根据权利要求15至19中任一项所述的方法,其特征在于,所述无线接入设备还向所述第二D2D设备发送包括为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备所占用的物理资源以及为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备所在组的组标识的信息。
  21. 根据权利要求15至20中任一项所述的方法,其特征在于,所述无线接入设备还向所述第二D2D设备发送激活信息,所述激活信息用于指示为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备开始为所述第一D2D设备提供与所述无线接入设备的通信服务。
  22. 一种第一D2D设备,其特征在于,包括:
    发送模块,用于发送发现消息,所述发现消息用于触发第二D2D设备向无线接入设备发送上报消息,其中,所述上报消息用于所述无线接入设备确定为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备;
    第一接收模块,用于接收所述无线接入设备发送的控制消息,所述控制消息包括指示信息,所述指示信息指示为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备。
  23. 根据权利要求22所述的第一D2D设备,其特征在于,所述第一D2D设备还包括:
    第二接收模块,用于接收所述第二D2D设备发送的宣告消息,所述宣告消息用于通知所述第一D2D设备所述第二D2D设备的存在;
    所述发送模块具体用于:
    根据所述宣告消息,向所述第二D2D设备发送所述发现消息。
  24. 根据权利要求23所述的第一D2D设备,其特征在于,所述宣告消 息包括所述第二D2D设备发送所述宣告消息的第一功率水平信息;
    第一D2D设备还包括:
    确定模块,用于确定接收所述宣告消息的第二功率水平信息;
    其中,所述发送模块具体用于:
    根据所述第一功率水平信息和所述第二功率水平信息判断出所述第二D2D设备为能够为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备候选,并向所述第二D2D设备发送所述发现消息,所述发现消息中包含所述第二D2D设备的标识。
  25. 一种第二D2D设备,其特征在于,包括:
    第一接收模块,用于接收第一D2D设备发送的发现消息,所述发现消息用于触发所述第二D2D设备向无线接入设备发送上报消息,其中,所述上报消息用于所述无线接入设备确定为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备;
    第一发送模块,用于根据所述第一接收模块接收的所述发现消息向所述无线接入设备发送所述上报消息;
    第二接收模块,用于接收所述无线接入设备发送的控制消息,所述控制消息包括指示信息,所述指示信息指示为所述第一D2D设备提供与所述无线接入设备的通信服务的所述D2D设备。
  26. 根据权利要求25所述的第二D2D设备,其特征在于,所述第二D2D设备还包括:
    第二发送模块,用于在所述第一D2D设备发送所述发现消息之前,向所述第一D2D设备发送宣告消息,所述宣告消息用于通知所述第一D2D设备所述第二D2D设备的存在;
    所述第一接收模块具体用于:
    接收所述第一D2D设备根据所述宣告消息发送的所述发现消息。
  27. 根据权利要求26所述的第二D2D设备,其特征在于,所述宣告消息包括所述第二D2D设备发送所述宣告消息的第一功率水平信息;
    其中,所述第一接收模块具体用于:
    在所述第一D2D设备根据所述第一功率水平信息和所述第二D2D设备接收所述宣告消息的第二功率水平信息判断出所述第二D2D设备为能够为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备候选的 情况下,所述第二D2D设备接收所述第一D2D设备发送的所述发现消息,所述发现消息中包含所述第二D2D设备的标识。
  28. 一种无线接入设备,其特征在于,包括:
    接收模块,用于接收第二D2D设备发送的上报消息,所述上报消息用于所述无线接入设备确定为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备;
    确定模块,用于根据所述接收模块接收的所述上报消息,确定所述第二D2D设备是否能够为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备;
    第一发送模块,用于根据所述确定模块确定是,所述无线接入设备向第一D2D设备发送控制消息,所述控制消息包括指示信息,所述指示信息指示为所述第一D2D设备提供与所述无线接入设备的通信服务的所述D2D设备。
  29. 根据权利要求28所述的无线接入设备,其特征在于,所述确定模块具体用于:
    根据所述第一D2D设备与所述第二D2D设备之间的信道质量,以及所述无线接入设备与所述第二D2D设备之间的信道质量,确定所述第二D2D设备是否能够为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备。
  30. 根据权利要求28或29所述的无线接入设备,其特征在于,所述无线接入设备还包括:
    第二发送模块,用于向所述第二D2D设备发送激活信息,所述激活信息用于指示为所述第一D2D设备提供与所述无线接入设备的通信服务的D2D设备开始为所述第一D2D设备提供与所述无线接入设备的通信服务。
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CN102647246A (zh) * 2011-02-22 2012-08-22 上海无线通信研究中心 一种d2d对/d2d簇通信建立方法
CN104170521A (zh) * 2012-01-27 2014-11-26 英特尔公司 小区内设备到设备通信的集中控制
WO2015024505A1 (en) * 2013-08-22 2015-02-26 Huawei Technologies Co., Ltd. Contention-based integration of device to device (d2d) networks with wireless infrastructure
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

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CN102647246A (zh) * 2011-02-22 2012-08-22 上海无线通信研究中心 一种d2d对/d2d簇通信建立方法
CN104170521A (zh) * 2012-01-27 2014-11-26 英特尔公司 小区内设备到设备通信的集中控制
WO2015024505A1 (en) * 2013-08-22 2015-02-26 Huawei Technologies Co., Ltd. Contention-based integration of device to device (d2d) networks with wireless infrastructure
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