WO2017041293A1 - 一种d2d的数据传输方法、设备及系统 - Google Patents

一种d2d的数据传输方法、设备及系统 Download PDF

Info

Publication number
WO2017041293A1
WO2017041293A1 PCT/CN2015/089439 CN2015089439W WO2017041293A1 WO 2017041293 A1 WO2017041293 A1 WO 2017041293A1 CN 2015089439 W CN2015089439 W CN 2015089439W WO 2017041293 A1 WO2017041293 A1 WO 2017041293A1
Authority
WO
WIPO (PCT)
Prior art keywords
candidate
message
source
base station
ues
Prior art date
Application number
PCT/CN2015/089439
Other languages
English (en)
French (fr)
Inventor
李晓翠
徐凯
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to US15/758,613 priority Critical patent/US10609743B2/en
Priority to CN201580081487.3A priority patent/CN107836125A/zh
Priority to EP15903399.2A priority patent/EP3322221B1/en
Priority to PCT/CN2015/089439 priority patent/WO2017041293A1/zh
Publication of WO2017041293A1 publication Critical patent/WO2017041293A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a device to device (English: Device to Device, abbreviated as: D2D) data transmission method, device and system.
  • D2D Device to Device
  • the D2D communication mode can also be used.
  • the user equipment English: User Equipment, UE for short
  • the UE directly communicates with another UE, which not only saves wireless spectrum resources, but also reduces the pressure on the core network. Therefore, D2D technology has become an important technology that can be standardized for the fifth generation (English: 5rd Generation, 5G for short) in the 3rd Generation Partnership Project (English: 3rd Generation Partnership Project). .
  • the enhanced D2D (English: Enhanced D2D, abbreviated as: eD2D) is a 3GPP long-term evolution (English: Long Term Evolution, LTE) system version. 13 (English: Release.13, referred to as: Rel.13) system is working A subject of research.
  • UE-to-network relays (English: UE-to-Network Relays) is one of the important research directions.
  • UE-to-Network Relays is divided into communication (English: communication) and discovery (English: discovery). Scenario, for these two scenarios, the specific communication process, resource allocation, data transmission, etc. need to be designed and studied accordingly.
  • the embodiment of the present invention provides a D2D data transmission method, device, and system, to solve the problem in the prior art, how to find a UE in a network coverage as a relay UE, and transmit information of a UE outside the network coverage to the base station. problem.
  • the embodiment of the present invention adopts the following technical solutions:
  • a data transmission method of a device to a device D2D comprising:
  • the source user equipment UE sends a first message to the n candidate UEs, where the first message is used to indicate that the source UE has data to be transmitted to the base station, where the source UE is a UE outside the coverage of the base station network.
  • the n candidate UEs are UEs within the coverage of the base station network, and n is an integer not less than 2;
  • the source UE receives n second messages from the n candidate UEs, where each candidate UE of the n candidate UEs sends a second message to the source UE, where the second message includes User identifier of each candidate UE and/or status information of each candidate UE;
  • the source UE transmits the data to the base station by the relay UE.
  • the source UE sends the first message to the n candidate UEs, including:
  • the source UE sends a first message to the n candidate UEs in a resource pool pre-configured by the base station;
  • the source UE receives n second messages from the n candidate UEs, including:
  • the source UE receives n second messages from the n candidate UEs in the resource pool.
  • the resource pool includes a first resource and a second resource, where the first resource is used to allocate to the The source UE sends the first message and receives the second message, and the second resource is used to allocate to the n candidate UEs to send the second message and receive the first message.
  • the status information includes at least one of the following information One or any combination:
  • the first message to the first possible implementation manner of the third possible implementation manner, where the first message includes the n candidate UEs An indication of the need for feedback.
  • the first message to the fourth possible implementation manner of the first aspect includes the n candidate UEs The status information needs to meet the preset threshold.
  • a source user equipment UE includes: a sending unit, a receiving unit, and a processing unit;
  • the sending unit is configured to send a first message to the n candidate UEs, where the first message is used to indicate that the source UE has data to be transmitted to the base station, where the source UE is outside the coverage of the base station network UE, the n candidate UEs are UEs within the coverage of the base station network, and n is an integer not less than 2;
  • the receiving unit is configured to receive n second messages from the n candidate UEs, where each candidate UE of the n candidate UEs sends a second message to the source UE, where the The second message includes the user identifier of each candidate UE and/or status information of each candidate UE;
  • the processing unit is configured to determine, according to the user identifier of each candidate UE, and/or status information of each candidate UE, a relay UE from the n candidate UEs, where the relay UE is Transmitting the data to the UE of the base station;
  • the sending unit is further configured to transmit the data to the base station by using the relay UE.
  • the sending unit is specifically configured to:
  • the receiving unit is specifically configured to:
  • the resource pool in combination with the first possible implementation manner of the second aspect, includes a first resource and a second resource, where the first resource is used to allocate to the The source UE sends the first message and receives the second message, the second resource The source is configured to allocate to the n candidate UEs to send the second message and receive the first message.
  • the status information includes at least one of the following information One or any combination:
  • the first message includes the n candidate UEs An indication of the need for feedback.
  • the first message includes the n candidate UEs
  • the status information needs to meet the preset threshold.
  • a source user equipment UE includes: a processor, a first interface circuit, a second interface circuit, a memory, and a bus; the processor, the first interface circuit, and the a two interface circuit and the memory are connected through the bus and complete communication with each other;
  • the first interface circuit is configured to send a first message to the n candidate UEs, where the first message is used to indicate that the source UE has data to be transmitted to the base station, where the source UE is the base station network coverage An out-of-range UE, where the n candidate UEs are UEs within the coverage of the base station network, and n is an integer not less than 2;
  • the second interface circuit is configured to receive n second messages from the n candidate UEs, where each candidate UE of the n candidate UEs sends a second message to the source UE, where The second message includes the user identifier of each candidate UE and/or status information of each candidate UE;
  • the processor is configured to determine, according to the user identifier of each candidate UE and/or status information of each candidate UE, a relay UE from the n candidate UEs, where the relay UE is Transmitting the data to the UE of the base station;
  • the first interface circuit is further configured to transmit the data to the base station by using the relay UE.
  • the first interface circuit is specifically configured to:
  • the second interface circuit is specifically configured to:
  • the resource pool includes a first resource and a second resource, where the first resource is used to allocate to the The source UE sends the first message and receives the second message, and the second resource is used to allocate to the n candidate UEs to send the second message and receive the first message.
  • the status information includes at least one of the following information One or any combination:
  • the first message includes the n candidate UEs An indication of the need for feedback.
  • the first message includes the n candidate UEs
  • the status information needs to meet the preset threshold.
  • the D2D data transmission method and the source UE outside the coverage of the base station network include: after the source UE sends the first message to the n candidate UEs in the coverage of the base station network, the source UE receives the n candidates. n second messages sent by the UE, where each candidate UE of the n candidate UEs sends a second message to the source UE, where the second message includes the user identifier of each candidate UE and/or The status information of each candidate UE; in this way, the source UE may determine the relay UE from the n candidate UEs according to the user identifier of each candidate UE and/or the status information of each candidate UE.
  • the D2D data transmission method and the source UE provided by the embodiment of the present invention can be used when there are multiple candidate UEs in the network coverage.
  • Finding a suitable UE as a relay UE, and transmitting information of a UE outside the network coverage to the base station thus solving how to find a UE in a network coverage as a relay UE, and one outside the network coverage The problem of transmitting UE information to the base station.
  • a fourth aspect provides a data transmission method of a device to a device D2D, where the method includes:
  • the candidate user equipment UE receives the first message sent by the source UE, where the first message is used to indicate that the source UE has data to be transmitted to the base station, where the source UE is a UE outside the coverage of the base station network.
  • the candidate UE is one of n candidate UEs in the coverage of the base station network, and n is an integer not less than 2;
  • the candidate UE sends a second message to the source UE, where the second message includes a user identifier of the candidate UE and/or state information of the candidate UE;
  • the candidate UE When the candidate UE is determined by the source UE to be a relay UE according to the user identifier of the candidate UE and/or the state information of the candidate UE, the candidate UE receives the data sent by the source UE and Transmitting the data to the base station, wherein the relay UE is a UE transmitting the data to the base station.
  • the candidate UE receives the first message sent by the source UE, including:
  • the candidate UE sends a second message to the source UE in the resource pool.
  • the resource pool in combination with the first possible implementation manner of the fourth aspect, includes a first resource and a second resource, where the first resource is used to allocate The source UE sends the first message and receives the second message, and the second resource is used to allocate the second candidate UE to send the second message and receive the first message.
  • the status information includes at least one of the following information One or any combination:
  • the first message includes the n candidate UEs An indication of the need for feedback.
  • the first message includes the n candidate UEs
  • the status information needs to meet the preset threshold.
  • a fifth aspect provides a candidate user equipment UE, where the candidate UE includes: a receiving unit and a sending unit;
  • the receiving unit is configured to receive a first message sent by the source UE, where the first message is used to indicate that the source UE has data to be transmitted to the base station, where the source UE is outside the coverage of the base station network a UE, the candidate UE is one of n candidate UEs in the coverage of the base station network, and n is an integer not less than 2;
  • the sending unit is configured to send a second message to the source UE, where the second message includes a user identifier of the candidate UE and/or state information of the candidate UE;
  • the receiving unit is further configured to: when the candidate UE is determined by the source UE to be a relay UE according to the user identifier of the candidate UE and/or the state information of the candidate UE, receive the sending by the source UE The data, wherein the relay UE is a UE that transmits the data to the base station;
  • the sending unit is further configured to transmit the data to the base station.
  • the receiving unit is specifically configured to:
  • the sending unit is specifically configured to:
  • the candidate UE sends a second message to the source UE in the resource pool.
  • the resource pool includes a first resource and a second resource, where the first resource is used to allocate The source UE sends the first message and receives the second message, and the second resource is used to allocate the second candidate UE to send the second message and receive the first message.
  • the status information includes at least one or any combination of the following information:
  • the first message includes the n candidate UEs An indication of the need for feedback.
  • the first message includes the n candidate UEs
  • the status information needs to meet the preset threshold.
  • a candidate user equipment UE includes: a first interface circuit, a second interface circuit, a memory, and a bus; the first interface circuit, the second interface circuit, and the memory pass The buses are connected and complete communication with each other;
  • the first interface circuit is configured to receive a first message sent by the source UE, where the first message is used to indicate that the source UE has data to be transmitted to the base station, where the source UE is the network coverage of the base station a UE that is out of the range of n candidate UEs in the coverage of the base station network, where n is an integer not less than 2;
  • the second interface circuit is configured to send a second message to the source UE, where the second message includes a user identifier of the candidate UE and/or status information of the candidate UE.
  • the first interface circuit is further configured to: when the candidate UE is determined by the source UE to be a relay UE according to the user identifier of the candidate UE and/or status information of the candidate UE, receive the source UE The data sent, wherein the relay UE is a UE that transmits the data to the base station;
  • the second interface circuit is further configured to transmit the data to the base station.
  • the first interface circuit is specifically configured to:
  • the second interface circuit is specifically configured to:
  • the candidate UE sends a second message to the source UE in the resource pool.
  • the resource pool includes a first resource and a second resource, where the first resource is used to allocate The source UE sends the first message and receives the second message, and the second resource is used to allocate the second candidate UE to send the second message and receive the first message.
  • the status information includes at least one of the following information One or any combination:
  • the first message includes the n candidate UEs An indication of the need for feedback.
  • the first message includes the n candidate UEs
  • the status information needs to meet the preset threshold.
  • the data transmission method of the D2D and the candidate UE in the coverage of the base station network include: after receiving the first message sent by the source UE outside the coverage of the network of the base station, the candidate UE sends the second message to the source UE.
  • the second message includes the user identifier of the candidate UE and/or status information of the candidate UE; thus, after receiving the second message sent by the n candidate UEs, the source UE may be according to each candidate. Determining a relay UE from the n candidate UEs, and transmitting data to the base station by using the relay UE, where n is not less than 2 The integer.
  • the D2D data transmission method and the candidate UE provided by the embodiment of the present invention may find a suitable UE as a relay UE from multiple candidate UEs when there are multiple candidate UEs in the network coverage, and one is in the network.
  • the information of the out-of-coverage UE is transmitted to the base station, thus solving the problem of how to find the UE within one network coverage as the relay UE and transmit information of a UE outside the network coverage to the base station.
  • the seventh aspect provides a data transmission system of the device to the device D2D, the system comprising: the base station, the source user equipment UE according to any one of the second aspects, and at least two, such as the third a candidate UE according to any of the aspects; or
  • the D2D data transmission system includes the source user equipment UE according to any one of the second aspects, and at least two candidate UEs according to any one of the third aspects, or the fifth aspect
  • FIG. 1 is a schematic diagram of a scenario of a D2D data transmission system according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram 1 of interaction of a data transmission method of D2D according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram 2 of interaction of a data transmission method of D2D according to an embodiment of the present disclosure
  • FIG. 4 is a schematic flowchart 1 of a D2D data transmission method according to an embodiment of the present invention.
  • FIG. 5 is a second schematic flowchart of a D2D data transmission method according to an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart 3 of a D2D data transmission method according to an embodiment of the present disclosure
  • FIG. 7 is a schematic flowchart 4 of a D2D data transmission method according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram 1 of a source UE according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram 1 of a candidate UE according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram 2 of a source UE according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram 2 of a candidate UE according to an embodiment of the present invention.
  • the words “first”, “second” and the like are used to distinguish the same or similar items whose functions and functions are substantially the same, in the field.
  • the skilled person will understand that the words “first”, “second” and the like do not limit the number and order of execution.
  • the embodiment of the present invention is mainly applied to a D2D data transmission system, and the D2D data transmission system may be a Long Term Evolution (LTE) or an advanced long-term evolution (English: LTE Advanced, LTE for short).
  • LTE Long Term Evolution
  • LTE Advanced Long-term evolution
  • the A-A system, or other versions of the LTE system in the future, is not specifically limited in this embodiment of the present invention.
  • the D2D data transmission system includes a base station and n candidate UEs in the coverage of the base station network (assumed to be n UE1, including: UE1-1, UE1-2, ..
  • n is an integer not less than 2.
  • the UE2 can communicate with each of the n UE1s, and the UE1-m (assumed to be a relay UE) can communicate with the base station, where 1 ⁇ m ⁇ n, and m is an integer.
  • an embodiment of the present invention provides a D2D data transmission method, as shown in FIG. 2, including:
  • the UE2 sends a first message to the n UE1s, where the first message is used to indicate that the UE2 has data to be transmitted to the base station.
  • Each UE1 of the n UE1s respectively receives the first message.
  • Each UE1 in the n UE1 sends a second message to the UE2, where the second message includes the user identifier of the UE1 and/or status information of the UE1.
  • the state information of the UE1 specifically refers to information used to reflect the state of the UE1.
  • the status information includes at least one or any combination of the following information:
  • the status information can be It is also any information such as the current memory usage, the current power usage or remaining power, the processing power of the central processing unit CPU, the link status with the base station, or the interference situation. Any combination of information, such as the first information is the current memory usage and the current power usage or remaining power; or, the first information is the link state and interference between the base stations, etc., The embodiment of the invention is not specifically limited thereto.
  • the current memory usage usually refers to the current memory usage ratio or the current memory remaining ratio. For example, the current memory usage is 60% of the current memory footprint.
  • the current power usage is usually the ratio of the current power usage. For example, the current power usage is 20% of the current power usage.
  • the remaining power of the current power supply usually refers to the ratio of the remaining power of the current power supply.
  • the current power supply has a remaining capacity of 20%.
  • the processing power of the CPU usually refers to the CPU's ability to process information in a unit of time, which can be reflected in the speed of its running program.
  • the link state with the base station includes: a link stability condition between the UE and the base station, a interference condition of the link between the UE and the base station, and the like.
  • a link stability condition between the UE and the base station includes: a link stability condition between the UE and the base station, a interference condition of the link between the UE and the base station, and the like.
  • the value of the downlink reference signal receiving power (English: Reference Signal Receiving Power, RSRP) or the downlink signal to interference plus noise ratio (English: Signal to Interference plus Noise Ratio, SINR) is used to reflect the specific Link status.
  • RSRP Reference Signal Receiving Power
  • SINR Signal to Interference plus Noise Ratio
  • the interference situation includes: interference or noise of the link between UE2 and UE1.
  • the UE2 receives n second messages from the n UE1, where each UE1 sends a second message to the UE2.
  • the UE2 determines, according to the user identifier of each UE1 and/or the status information of each UE1, a relay UE from the n UE1, where the relay UE is a UE that transmits the data to the base station.
  • the UE2 determines the relaying UE from the n UE1s according to the user identifier of each UE1 and/or the status information of each UE1, which may include:
  • the UE2 determines the relay UE from the n UEs according to the user identifier of each UE1 and/or the status information of each UE1 in combination with a preset policy.
  • the preset policy may include: The UE1 with the smallest memory occupancy ratio is the relay UE; or
  • the preset policy may include: the UE1 with the most remaining power of the current power source is the relay UE; or
  • the preset policy may include: the UE1 with the strongest processing capability of the CPU is the relay UE; or
  • the preset policy may include: the UE1 that is in an optimal link state with the base station is a relay UE; or
  • the preset policy may include: the UE1 with the least interference is the relay UE.
  • the preset policy may include: the current memory sharing ratio is less than 60%, and the UE1 with the largest remaining power of the current power source in the UE1 is the relay UE.
  • the preset policy may also be other.
  • the foregoing is only an exemplary description, which is not specifically limited in the embodiment of the present invention.
  • the UE2 transmits the data to the base station by using the relay UE.
  • the data is transmitted to the base station by the relay UE.
  • the UE2 sends a first message to the UE1-1 and the UE1-2, where the first message is used to indicate that the UE2 has data to be transmitted to the base station.
  • the UE 1-1 sends a second message to the UE2, where the second message includes the user identifier of the UE1-1 and/or the status information of the UE1-1.
  • the UE2 receives the second message sent by the UE1-1.
  • the UE1-2 receives the first message.
  • the UE1-2 sends a second message to the UE2, where the second message includes the user identifier of the UE1-2 and/or the status information of the UE1-2.
  • the UE2 receives the second message sent by the UE1-2.
  • steps S302a-304a and the steps S302b-304b there is no necessary sequence of execution between the steps S302a-304a and the steps S302b-304b, and the steps S302a-304a may be performed first, and then the steps S302b-304b may be performed; or the steps S302b-304b may be performed first, and then the steps are executed.
  • S302a-304a; Steps S302a-304a and Steps S302b-304b may be performed at the same time, which is not specifically limited in the embodiment of the present invention.
  • the UE2 determines a relay UE from the UE1-1 and the UE1-2 according to the user identifier of the UE1-1 and/or the state information of the UE1- and the user identifier of the UE1-2 and/or the state information of the UE2-.
  • the relay UE is a UE that transmits the data to the base station.
  • the UE2 determines the specificity of the relay UE from the UE1-1 and the UE1-2 according to the user identifier of the UE1-1 and/or the state information of the UE1- and the user identifier of the UE1-2 and/or the state information of the UE2-.
  • the UE2 determines the specificity of the relay UE from the UE1-1 and the UE1-2 according to the user identifier of the UE1-1 and/or the state information of the UE1- and the user identifier of the UE1-2 and/or the state information of the UE2-.
  • step S205 in the embodiment shown in FIG. 2, and details are not described herein again.
  • the UE2 transmits the data to the base station by using the relay UE.
  • n 2
  • n may also be other integer values greater than 2, as long as the analogy according to the example shown in FIG. 3 is used, and the embodiment of the present invention is This will not be repeated one by one.
  • the UE2 (the UE outside the coverage of the base station network) sends the first message to the n UE1s (n candidate UEs in the coverage of the base station network)
  • the n UE1s Each UE1 sends a second message to the UE2, where the second message includes the user identifier of the UE1 and/or status information of the UE1; thus, after receiving the n second messages from the n UE1, the UE2 may Determining a relay UE from the n UE1s according to the user identifier of each UE1 in the n UE1s and/or the status information of each UE1, and further transmitting data to the base station by using the relay UE, where n is not An integer less than 2.
  • the base station may be UE2 and n
  • Each UE1 in UE1 configures a resource pool in which UE2 can receive and send messages.
  • each UE1 in n UE1s can receive and send messages in the resource pool. That is, in the embodiment shown in FIG. 2, the UE2 sends the first message to the n UE1s (step S201), which may specifically include:
  • the UE2 sends a first message to the n UE1s in a resource pool pre-configured by the base station.
  • Each of the UE1s of the UE1 receives the first message (step S202), which may specifically include:
  • Each of the n UE1s receives the first message in the resource pool.
  • Each of the UE1s of the UE1 sends a second message to the UE2 (step S203), which may include:
  • Each UE1 of the n UE1s respectively sends a second message to the UE2 in the resource pool.
  • the UE2 receives the n second messages from the n UE1s (step S204), which may specifically include:
  • UE2 receives n second messages from n UE1s in the resource pool.
  • different resources may be allocated to the UE2 and the n UE1 in the resource pool pre-configured by the base station, that is, :
  • the resource pool includes a first resource and a second resource, where the first resource is used to allocate to the UE2 to send the first message and receive the second message, where the second resource is used for allocation Sending the second message to the n UE1s and receiving the first message.
  • the first message may further include an indication that the n UE1s need feedback information.
  • each of the UE1 sends a second message to the UE2 (step S203), which may include:
  • Each UE1 of the n UE1s sends a second message to the UE2 according to the indication that the n UE1s need feedback information.
  • the information of the feedback information may be specifically that the information that the UE1 needs to feed back in the n UE1s includes the status information, which is not specifically limited in this embodiment of the present invention.
  • the first message further includes a preset threshold that the status information of the n UE1s needs to be met.
  • the method may further include:
  • Each of the UE1s needs to meet the preset threshold according to the state information of the n UE1s, and determines whether the state information of the UE1 meets the preset threshold.
  • Each of the UE1 sends a second message to the UE2, which may include:
  • the UE1 sends a second message to the UE2.
  • the second message is not sent to the UE2.
  • the preset threshold may include: the current memory usage ratio is less than a preset threshold; or
  • the preset threshold may include: the remaining power of the current power source is greater than a preset threshold; or
  • the preset threshold may include: the processing capability of the CPU is greater than a preset threshold; or
  • the preset threshold may include: the link status with the base station is greater than a preset preset threshold; or
  • the preset threshold may include: the interference is less than a preset preset threshold.
  • the preset threshold may also be other.
  • the above-mentioned only provides a plurality of possible preset thresholds, which are not specifically limited in this embodiment of the present invention.
  • the state information includes the remaining power of the current power source and the current memory usage, and the preset threshold of the remaining power of the current power source is greater than or equal to 50%, and the current threshold of the memory usage is less than or equal to 40%. . If the current power consumption of the current power supply in the UE1-1 is 70%, the current memory usage is 50%. At this time, if the current memory usage in the status information of the UE1-1 does not meet the preset threshold, the current memory usage is not sent. The second message is sent to UE2. If the remaining power of the current power source in UE1-3 is 70%, the current memory usage is 20%.
  • the second message is sent to the UE2, which can greatly reduce the workload of the UE2 selecting a suitable UE from the multiple candidate UEs as the relay UE, reducing the power consumption of the UE2, and saving Signaling overhead.
  • the D2D data transmission system shown in FIG. 1 further provides a D2D data transmission method, which is described by using UE2 as an execution subject. As shown in FIG. 4, the method includes:
  • the UE2 sends a first message to the n UE1s, where the first message is used to indicate that the UE2 has data to be transmitted to the base station.
  • the UE2 receives n second messages from the n UE1, where each UE1 in the n UE1 sends a second message to the UE2, where the second message includes the user identifier of the UE1 and/or the UE1. status information.
  • the UE2 determines, according to the user identifier of each UE1 in the n UE1s and/or the status information of each UE1, from the n UE1s, where the relay UE transmits the data to the base station. UE.
  • step S403 For the specific implementation of the step S403, reference may be made to the related description of the step S205 in the embodiment shown in FIG. 2, and details are not described herein again.
  • the UE2 transmits the data to the base station by using the relay UE.
  • the base station may pre-configure a resource pool, and the UE2 may receive and send a message in the resource pool. That is, as shown in FIG. 5, the UE2 sends a first message to the n UE1s (step S401), which may specifically include:
  • S401a and UE2 send the first message to the n UE1s in the resource pool pre-configured by the base station.
  • the UE2 receives the n second messages from the n UE1s (step S402), which may specifically include:
  • the UE2 receives n second messages from the n UE1s in the resource pool.
  • different resources may be allocated to the UE2 and the n UE1 in the resource pool pre-configured by the base station, namely:
  • the resource pool pre-configured by the base station includes a first resource and a second resource, where the first resource is used to allocate to the UE2 to send the first message and receive the second message,
  • the second resource is configured to allocate to the n UE1 to send the second message and receive the first message.
  • the first message may further include an indication that the n UE1s need feedback information.
  • the indication of the feedback information may specifically be that the information that each UE1 in the n UE1 needs to feed back includes the status information.
  • the first message further includes a preset threshold that the status information of the n UE1s needs to be met.
  • the UE2 after the UE2 (the UE outside the coverage of the base station network) transmits the first message to the n UE1s (n candidate UEs within the coverage of the base station network), the UE2 receives the information from the n.
  • each UE1 of the n UE1s sends a second message to the UE2, where the second message includes the user identifier of the UE1 and/or status information of the UE1; thus, the UE2
  • the relay UE may be determined from the n UE1s according to the user identifier of each UE1 of the n UE1s and/or the state information of each UE1, and then the data is transmitted to the base station by the relay UE, where n is An integer not less than 2.
  • an embodiment of the present invention further provides a D2D data transmission method, where UE1-x (assumed to be any one of n UE1s) is described as an execution subject, as shown in the figure.
  • Figure 6 including:
  • the UE1-x receives the first message sent by the UE2, where the first message is used to indicate that the UE2 has data to be transmitted to the base station.
  • the UE1-x sends a second message to the UE2, where the second message includes the user identifier of the UE1-x and/or the status information of the UE1-x.
  • the UE1-x When the UE1-x is determined by the UE2 to be a relay UE according to the user identifier of the UE1-x and/or the state information of the UE1-x, the UE1-x receives the data sent by the UE2 and transmits the data to the UE1.
  • the UE2 determines the UE1-x as the relay UE according to the user identifier of the UE1-x and/or the state information of the UE1-x.
  • the UE2 determines the UE1-x as the relay UE according to the user identifier of the UE1-x and/or the state information of the UE1-x.
  • the base station may pre-configure a resource pool, and UE1-x may receive and send a message in the resource pool. That is, as shown in FIG. 7, the UE1-x receives the first message sent by the UE2 (step S601), which may specifically include:
  • the S601a and the UE1-x receive the first message sent by the UE2 in a resource pool pre-configured by the base station.
  • the UE1-x sends a second message to the UE2 (step S602), which may specifically include:
  • UE1-x send a second message to UE2 in the resource pool.
  • different resources may be allocated to the UE2 and the UE1-x in the resource pool pre-configured by the base station, namely:
  • the resource pool pre-configured by the base station includes a first resource and a second resource, where the first resource is used to allocate to the UE2 to send the first message, and to receive, respectively, sent by each UE1 in the n UE1s.
  • the second message is used by the second resource to be allocated to the n UE1s (including the UE1-x) to send the second message and receive the first message.
  • the first message may further include an indication that the n UE1s need feedback information.
  • the UE1-x sends the second message to the UE2 (step S602), which may specifically include:
  • the UE1-x sends a second message to the UE2 according to the indication that the n UE1s need feedback information.
  • the information of the feedback information may be specifically that the information that the UE1 needs to feed back in the n UE1s includes the status information, which is not specifically limited in this embodiment of the present invention.
  • the first message further includes a preset threshold that the status information of the n UE1s needs to be met.
  • the UE1-x sends the second message to the UE2 (step S602), it may also be packaged.
  • the UE1-x may also be packaged.
  • the UE1-x determines whether the state information of the UE1-x satisfies the preset threshold according to the preset threshold that needs to be met by the state information of the n UE1s.
  • the UE1-x sends the second message to the UE2, which may specifically include:
  • UE1-x If the state information of UE1-x satisfies the preset threshold, UE1-x sends a second message to UE2.
  • the second message is not sent to the UE2.
  • the data transmission method of the D2D provided by the embodiment of the present invention, because the UE1-x (any one of the n candidate UEs in the coverage of the base station network) transmits the first one of the UE2 (the UE outside the coverage of the base station network) After the message, UE1-x sends a second message to UE2, the second message including the user identity of UE1-x and/or the state information of UE1-x; thus, UE2 is receiving n second messages from n UE1s Then, the relay UE may be determined from the n UE1s according to the user identifier of each UE1 in the n UE1s and/or the state information of each UE1, and then the data is transmitted to the base station by the relay UE.
  • n is an integer not less than 2. That is, a solution for transmitting information of a UE outside the network coverage to a base station by finding a suitable UE from multiple candidate UEs as a relay UE when there are usually multiple candidate UEs in the network coverage. . Therefore, the problem of how to find a UE in a network coverage as a relay UE and transmit information of a UE outside the network coverage to the base station is solved.
  • the embodiment of the present invention further provides a source UE 80.
  • the source UE 80 includes: a sending unit 801, a receiving unit 802, and a processing unit 803.
  • the sending unit 801 is configured to send a first message to the n candidate UEs, where the first message is used to indicate that the source UE 80 has data to be transmitted to the base station, where the source UE 80 is the base station network coverage.
  • the outer UE, the n candidate UEs are UEs within the coverage of the base station network, and n is an integer not less than 2.
  • the receiving unit 802 is configured to receive n second messages from the n candidate UEs, where each candidate UE of the n candidate UEs sends a second message to the source UE 80, where The second message includes the user identifier of each candidate UE and/or each candidate Status information of the UE.
  • the processing unit 803 is configured to determine, according to the user identifier of each candidate UE, and/or status information of each candidate UE, a relay UE from the n candidate UEs, where the relay UE is Transmitting the data to a UE of the base station.
  • the sending unit 801 is further configured to transmit the data to the base station by using the relay UE.
  • the sending unit 801 is specifically configured to:
  • the receiving unit 802 is specifically configured to:
  • the resource pool includes a first resource and a second resource, where the first resource is used to allocate to the source UE 80 to send the first message and receive the second message, the second resource And configured to send the second message to the n candidate UEs and receive the first message.
  • the status information includes at least one or any combination of the following information:
  • the first message includes an indication that the n candidate UEs need feedback information.
  • the first message includes a preset threshold that the status information of the n candidate UEs needs to meet.
  • the sending unit 801 in this embodiment may be an interface circuit having a transmitting function on the source UE 80, such as a transmitter;
  • the receiving unit 802 may be an interface circuit having a receiving function on the source UE 80, such as a receiver;
  • the 803 may be a separately set processor, or may be implemented in a processor of the source UE 80.
  • it may also be stored in the memory of the source UE 80 in the form of program code, and is called by a processor of the source UE 80 and The functions of the above processing unit 803 are performed.
  • the processor described herein may be a central processing unit (English: Central Process ing Unit, CPU for short), or a specific integrated circuit (English: Appl ication Specific Integrated Circuit, ASIC for short) or One or more integrated circuits embodying embodiments of the present invention are provided.
  • CPU Central Process ing Unit
  • ASIC Appl ication Specific Integrated Circuit
  • the method for performing D2D data transmission by the source UE provided by the embodiment of the present invention may be referred to the foregoing method embodiment, and details are not described herein again.
  • An embodiment of the present invention provides a source UE, where the source UE is a UE outside the coverage of the base station network, and after the source UE sends the first message to the n candidate UEs in the coverage of the base station network, the source UE receives the information from the source UE.
  • n second messages sent by the candidate UEs wherein each of the n candidate UEs sends a second message to the source UE, where the second message includes a user identifier of each candidate UE And the status information of each of the candidate UEs; in this manner, the source UE may determine from the n candidate UEs according to the user identifier of each candidate UE and/or the status information of each candidate UE.
  • n is an integer not less than 2. That is, the source UE provided by the embodiment of the present invention may find a suitable UE as a relay UE from multiple candidate UEs when there are multiple candidate UEs in the network coverage, and information about a UE outside the network coverage. Transfer to the base station. Therefore, the problem of how to find a UE in a network coverage as a relay UE and transmit information of a UE outside the network coverage to the base station is solved.
  • the embodiment of the present invention provides a candidate UE 90.
  • the candidate UE 90 includes: a receiving unit 901 and a sending unit 902.
  • the receiving unit 901 is configured to receive a first message sent by the source UE, where the first message is used to indicate that the source UE has data to be transmitted to the base station, where the source UE is outside the coverage of the base station network.
  • the candidate UE 90 is one of the n candidate UEs 90 in the coverage of the base station network, and n is an integer not less than 2.
  • the sending unit 902 is configured to send a second message to the source UE, where the second message includes a user identifier of the candidate UE 90 and/or status information of the candidate UE 90.
  • the receiving unit 901 is further configured to: when the candidate UE 90 is determined by the source UE to be a relay UE according to the user identifier of the candidate UE 90 and/or the status information of the candidate UE 90, receive the source UE to send The data, wherein the relay UE is a UE that transmits the data to the base station.
  • the sending unit 902 is further configured to transmit the data to the base station.
  • the receiving unit 901 is specifically configured to:
  • the sending unit 902 is specifically configured to:
  • the candidate UE 90 sends a second message to the source UE in the resource pool.
  • the resource pool includes a first resource and a second resource, where the first resource is used to allocate the first message to the source UE, and the second message is received, the second The resource is configured to allocate to the n candidate UEs 90 to send the second message and receive the first message.
  • the status information includes at least one or any combination of the following information:
  • the first message includes an indication that the n candidate UEs 90 need feedback information.
  • the first message includes a preset threshold that the status information of the n candidate UEs 90 needs to meet.
  • the sending unit 902 in this embodiment may be an interface circuit with a transmitting function on the candidate UE 90, such as a transmitter;
  • the receiving unit 901 may be an interface circuit, such as a receiver, having a receiving function on the candidate UE 90.
  • the method for performing D2D data transmission by the candidate UE provided by the embodiment of the present invention may be referred to the foregoing method embodiment, and details are not described herein again.
  • An embodiment of the present invention provides a candidate UE, where the candidate UE is one of n candidate UEs in a coverage of a base station network.
  • the candidate UE After receiving the first message sent by the source UE, the candidate UE sends a second message to the source UE, where the second message includes the user identifier of the candidate UE and/or status information of the candidate UE;
  • the source UE may determine, according to the user identifier of each candidate UE and/or the state information of each candidate UE, from the n candidate UEs.
  • n is an integer not less than 2.
  • the candidate UE provided by the embodiment of the present invention may find a suitable UE as a relay UE from multiple candidate UEs when there are multiple candidate UEs in the network coverage, and information about a UE outside the network coverage. Transfer to the base station. Therefore, the problem of how to find a UE in a network coverage as a relay UE and transmit information of a UE outside the network coverage to the base station is solved.
  • the embodiment of the present invention further provides a source UE 100.
  • the source UE 100 includes: a processor 1001, a first interface circuit 1002a, a second interface circuit 1002b, a memory 1003, and a bus 1004.
  • the processor 1001 The first interface circuit 1002a, the second interface circuit 1002b, and the memory 1003 are connected by the bus 1004 and complete communication with each other.
  • the processor 1001 herein may be a processor 1001 or a general term of multiple processing elements.
  • the processor 1001 may be a CPU, an ASIC, or one or more integrated circuits configured to implement embodiments of the present invention, such as one or more microprocessors 1001 (English: digital singnal processor, Abbreviation: DSP), or one or more Field Programmable Gate Array (English: Field Programmable Gate Array, referred to as: FPGA).
  • DSP digital singnal processor
  • FPGA Field Programmable Gate Array
  • the memory 1003 may be a storage device or a collective name of a plurality of storage elements, and is used to store executable program code or parameters, data, and the like required for the operation of the access network management device.
  • the memory 1003 may include a random access memory (English: Random-Access Memory, RAM for short), and may also include a non-volatile memory (NVRAM), such as a disk memory, a flash memory, or the like. .
  • NVRAM non-volatile memory
  • the bus 1004 may be an industry standard architecture (English: Industry Standard Architecture, ISA for short), an external device interconnection (English: Peripheral Component, PCI for short) or an extended industry standard architecture (English: Extended Industry Standard Architecture, Abbreviation: EISA) bus.
  • the bus 1004 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, the bus 1004 is shown with only one thick line in Figure 10, but does not indicate that there is only one bus or one type of bus.
  • the first interface circuit 1002a is configured to send a first message to the n candidate UEs, where the first message is used to indicate that the source UE 100 has data to be transmitted to the base station, where the source UE 100 is the base station network.
  • the n candidate UEs are UEs within the coverage of the base station network, and n is an integer not less than 2.
  • the second interface circuit 1002b is configured to receive n pieces from the n candidate UEs a second message, wherein each of the n candidate UEs sends a second message to the source UE 100, where the second message includes a user identifier of each candidate UE and/or each of the Status information of candidate UEs.
  • the processor 1001 is configured to determine, according to the user identifier of each candidate UE and/or status information of each candidate UE, a relay UE from the n candidate UEs, where the relay UE is Transmitting the data to a UE of the base station.
  • the first interface circuit 1002a is further configured to transmit the data to the base station by using the relay UE.
  • first interface circuit 1002a is specifically configured to:
  • the second interface circuit 1002b is specifically configured to:
  • the resource pool includes a first resource and a second resource, where the first resource is used to allocate to the source UE 100 to send the first message and receive the second message, the second resource And configured to send the second message to the n candidate UEs and receive the first message.
  • the status information includes at least one or any combination of the following information:
  • the first message includes an indication that the n candidate UEs need feedback information.
  • the first message includes a preset threshold that the status information of the n candidate UEs needs to meet.
  • the method for performing D2D data transmission by the source UE provided by the embodiment of the present invention may be referred to the foregoing method embodiment, and details are not described herein again.
  • An embodiment of the present invention provides a source UE, where the source UE is a UE outside the coverage of the base station network, and after the source UE sends the first message to the n candidate UEs in the coverage of the base station network, the source UE receives the information from the source UE.
  • the source UE may be configured according to the user identifier of each candidate UE and/or status information of each candidate UE from the A relay UE is determined among the n candidate UEs, and data is transmitted to the base station by the relay UE, where n is an integer not less than 2.
  • the source UE provided by the embodiment of the present invention may find a suitable UE as a relay UE from multiple candidate UEs when there are multiple candidate UEs in the network coverage, and information about a UE outside the network coverage. Transfer to the base station. Therefore, the problem of how to find a UE in a network coverage as a relay UE and transmit information of a UE outside the network coverage to the base station is solved.
  • the present invention further provides a candidate UE 110.
  • the candidate UE 110 includes: a first interface circuit 1101a, a second interface circuit 1101b, a memory 1102, and a bus 1103; the first interface circuit 1101a, the The second interface circuit 1101b and the memory 1102 are connected by the bus 1103 and complete communication with each other.
  • the memory 1102 herein may be a storage device, or a collective name of a plurality of storage elements, and used to store executable program code or parameters, data, and the like required for the operation of the access network management device.
  • the memory 1102 can include RAM or NVRAM, such as disk storage, flash memory, and the like.
  • the bus 1103 can be an ISA bus, a PCI bus, or an EISA bus.
  • the bus 1103 can be divided into an address bus, a data bus, a control bus, and the like.
  • the bus 1103 is shown with only one thick line in Figure 11, but does not mean that there is only one bus or one type of bus.
  • the first interface circuit 1101a is configured to receive a first message sent by the source UE, where the first message is used to indicate that the source UE has data to be transmitted to the base station, where the source UE is the base station network coverage.
  • the candidate UE 110 is one of the n candidate UEs 110 in the coverage of the base station network, and n is an integer not less than 2.
  • the second interface circuit 1101b is configured to send a second message to the source UE, where the second message includes a user identifier of the candidate UE 110 and/or status information of the candidate UE 110.
  • the first interface circuit 1101a is further configured to: when the candidate UE 110 is determined by the source UE to be a relay UE according to the user identifier of the candidate UE 110 and/or the status information of the candidate UE 110, The data sent by the UE, where the relay UE is the number According to the UE transmitted to the base station.
  • the second interface circuit 1101b is further configured to transmit the data to the base station.
  • first interface circuit 1101a is specifically configured to:
  • the second interface circuit 1101b is specifically configured to:
  • the candidate UE 110 sends a second message to the source UE in the resource pool.
  • the resource pool includes a first resource and a second resource, where the first resource is used to allocate the first message to the source UE, and the second message is received, the second The resource is configured to allocate to the n candidate UEs 110 to send the second message and receive the first message.
  • the status information includes at least one or any combination of the following information:
  • the first message includes an indication that the n candidate UEs 110 need feedback information.
  • the first message includes a preset threshold that the status information of the n candidate UEs 110 needs to meet.
  • the method for performing D2D data transmission by the candidate UE provided by the embodiment of the present invention may be referred to the foregoing method embodiment, and details are not described herein again.
  • An embodiment of the present invention provides a candidate UE, where the candidate UE is one of n candidate UEs in a coverage of a base station network.
  • the candidate UE After receiving the first message sent by the source UE, the candidate UE sends a second message to the source UE, where the second message includes the user identifier of the candidate UE and/or status information of the candidate UE; thus, the source UE
  • the relay UE may be determined from the n candidate UEs according to the user identifier of each candidate UE and/or the status information of each candidate UE. And transmitting data to the base station by the relay UE, where n is an integer not less than 2.
  • the candidate UE provided by the embodiment of the present invention may find a suitable UE as a relay UE from multiple candidate UEs when there are multiple candidate UEs in the network coverage, and information about a UE outside the network coverage. Pass Lost to the base station. Therefore, the problem of how to find a UE in a network coverage as a relay UE and transmit information of a UE outside the network coverage to the base station is solved.
  • a computer readable medium comprising computer readable instructions that, when executed, perform the operations of the method embodiments shown in Figures 2-7 of the above-described embodiments.
  • a computer program product including the computer readable medium described above.
  • 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 taken to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • the above described device is only illustrated by the division of the above functional modules. In practical applications, the above functions may be assigned differently according to needs.
  • the function module is completed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • the device and the unit described above refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be used. Combinations can be integrated 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 The form realization of the 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 all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in 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. .

Landscapes

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

Abstract

本发明实施例提供一种D2D的数据传输方法、设备及系统，以至少解决现有技术中如何寻找一个网络覆盖内的UE作为中继UE，将一个在网络覆盖外的UE的信息传输给基站的问题。方法包括：源UE向n个候选UE发送第一消息，第一消息用于指示源UE有数据需要传输给基站，其中，源UE为基站网络覆盖范围外的UE，n个候选UE为基站网络覆盖范围内的UE；源UE接收来自n个候选UE的n个第二消息，其中，n个候选UE中的每个候选UE向源UE发送一个第二消息，第二消息包括每个候选UE的用户标识和/或每个候选UE的状态信息；源UE根据每个候选UE的用户标识和/或每个候选UE的状态信息，从n个候选UE中确定中继UE，并通过中继UE将数据传输给基站。本发明适用于无线通信领域。

Description

一种D2D的数据传输方法、设备及系统 技术领域
本发明涉及无线通信领域，尤其涉及一种设备到设备(英文：Device to Device，简称：D2D)的数据传输方法、设备及系统。
背景技术
随着无线通信系统技术的不断发展，为了实现通信，除了可以使用传统的蜂窝通信模式外，还可以使用D2D通信模式。在蜂窝模式中，用户设备(英文：User Equipment，简称：UE)经由基站与另一个UE通信。而在D2D通信模式中，UE与另一UE直接通信，这样不但节省了无线频谱资源，而且降低了核心网的压力。因此，D2D技术成为目前在第三代合作伙伴计划(英文：3rd Generation Partnership Project，简称：3GPP)标准中正在被标准化的一个可以面向第五代(英文：5rd Generation，简称：5G)的重要技术。
目前，增强的D2D(英文：Enhanced D2D，简称：eD2D)，是3GPP长期演进(英文：Long Term Evolution，简称：LTE)系统版本.13(英文：Release.13，简称：Rel.13)系统正在研究的一个课题。该课题中，UE到网络的中继(英文：UE-to-Network Relays)是其中一个重要研究方向，UE-to-Network Relays分为通信(英文：communication)和发现(英文：discovery)两个场景，针对这两个场景，其具体的通信流程，资源分配，数据传输等都需要进行相应的设计和研究。
目前，如何寻找一个网络覆盖内(英文：in coverage)的UE作为中继UE，将一个在网络覆盖外(英文：out of coverage)的UE的信息传输给基站成为亟待解决的问题。
发明内容
本发明实施例提供一种D2D的数据传输方法、设备及系统，以解决现有技术中如何寻找一个网络覆盖内的UE作为中继UE，将一个在网络覆盖外的UE的信息传输给基站的问题。
为达到上述目的，本发明实施例采用如下技术方案：
第一方面，提供一种设备到设备D2D的数据传输方法，所述方法包括：
源用户设备UE向n个候选UE发送第一消息，所述第一消息用于指示所述源UE有数据需要传输给基站，其中，所述源UE为所述基站网络覆盖范围外的UE，所述n个候选UE为所述基站网络覆盖范围内的UE，n为不小于2的整数；
所述源UE接收来自所述n个候选UE的n个第二消息，其中，所述n个候选UE中的每个候选UE向所述源UE发送一个第二消息，所述第二消息包括所述每个候选UE的用户标识和/或所述每个候选UE的状态信息；
所述源UE根据所述每个候选UE的用户标识和/或所述每个候选UE的状态信息，从所述n个候选UE中确定中继UE，所述中继UE为将所述数据传输给所述基站的UE；
所述源UE通过所述中继UE将所述数据传输给所述基站。
在第一方面第一种可能的实现方式中，结合第一方面，所述源UE向n个候选UE发送第一消息，包括：
所述源UE在所述基站预先配置的资源池中向n个候选UE发送第一消息；
所述源UE接收来自所述n个候选UE的n个第二消息，包括：
所述源UE在所述资源池中接收来自所述n个候选UE的n个第二消息。
在第一方面第二种可能的实现方式中，结合第一方面第一种可能的实现方式，所述资源池包括第一资源和第二资源，其中，所述第一资源用于分配给所述源UE发送所述第一消息和接收所述第二消息，所述第二资源用于分配给所述n个候选UE发送所述第二消息和接收所述第一消息。
在第一方面第三种可能的实现方式中，结合第一方面或第一方面第一种可能的实现方式或第一方面第二种可能的实现方式，所述状态信息包括以下信息中的至少一个或任意组合：
当前的内存占用情况、当前电源的使用情况或剩余电量、中央处理 器CPU的处理能力、与所述基站之间的链路状态、或干扰情况。
在第一方面第四种可能的实现方式中，结合第一方面至第一方面第三种可能的实现方式中任一种可能的实现方式，所述第一消息中包含所述n个候选UE需要反馈信息的指示。
在第一方面第五种可能的实现方式中，结合第一方面至第一方面第四种可能的实现方式中任一种可能的实现方式，所述第一消息中包含所述n个候选UE的状态信息需要满足的预设门限。
第二方面，提供一种源用户设备UE，所述源UE包括：发送单元、接收单元和处理单元；
所述发送单元，用于向n个候选UE发送第一消息，所述第一消息用于指示所述源UE有数据需要传输给基站，其中，所述源UE为所述基站网络覆盖范围外的UE，所述n个候选UE为所述基站网络覆盖范围内的UE，n为不小于2的整数；
所述接收单元，用于接收来自所述n个候选UE的n个第二消息，其中，所述n个候选UE中的每个候选UE向所述源UE发送一个第二消息，所述第二消息包括所述每个候选UE的用户标识和/或所述每个候选UE的状态信息；
所述处理单元，用于根据所述每个候选UE的用户标识和/或所述每个候选UE的状态信息，从所述n个候选UE中确定中继UE，所述中继UE为将所述数据传输给所述基站的UE；
所述发送单元，还用于通过所述中继UE将所述数据传输给所述基站。
在第二方面第一种可能的实现方式中，结合第二方面，所述发送单元具体用于：
在所述基站预先配置的资源池中向n个候选UE发送第一消息；
所述接收单元具体用于：
在所述资源池中接收来自所述n个候选UE的n个第二消息。
在第二方面第二种可能的实现方式中，结合第二方面第一种可能的实现方式，所述资源池包括第一资源和第二资源，其中，所述第一资源用于分配给所述源UE发送所述第一消息和接收所述第二消息，所述第二资 源用于分配给所述n个候选UE发送所述第二消息和接收所述第一消息。
在第二方面第三种可能的实现方式中，结合第二方面或第二方面第一种可能的实现方式或第二方面第二种可能的实现方式，所述状态信息包括以下信息中的至少一个或任意组合：
当前的内存占用情况、当前电源的使用情况或剩余电量、中央处理器CPU的处理能力、与所述基站之间的链路状态、或干扰情况。
在第二方面第四种可能的实现方式中，结合第二方面至第二方面第三种可能的实现方式中任一种可能的实现方式，所述第一消息中包含所述n个候选UE需要反馈信息的指示。
在第二方面第五种可能的实现方式中，结合第二方面至第二方面第四种可能的实现方式中任一种可能的实现方式，所述第一消息中包含所述n个候选UE的状态信息需要满足的预设门限。
第三方面，提供一种源用户设备UE，所述源UE包括：处理器、第一接口电路、第二接口电路、存储器和总线；所述处理器、所述第一接口电路、所述第二接口电路和所述存储器通过所述总线连接并完成相互间的通信；
所述第一接口电路，用于向n个候选UE发送第一消息，所述第一消息用于指示所述源UE有数据需要传输给基站，其中，所述源UE为所述基站网络覆盖范围外的UE，所述n个候选UE为所述基站网络覆盖范围内的UE，n为不小于2的整数；
所述第二接口电路，用于接收来自所述n个候选UE的n个第二消息，其中，所述n个候选UE中的每个候选UE向所述源UE发送一个第二消息，所述第二消息包括所述每个候选UE的用户标识和/或所述每个候选UE的状态信息；
所述处理器，用于根据所述每个候选UE的用户标识和/或所述每个候选UE的状态信息，从所述n个候选UE中确定中继UE，所述中继UE为将所述数据传输给所述基站的UE；
所述第一接口电路，还用于通过所述中继UE将所述数据传输给所述基站。
在第三方面第一种可能的实现方式中，结合第三方面，所述第一接口电路具体用于：
在所述基站预先配置的资源池中向n个候选UE发送第一消息；
所述第二接口电路具体用于：
在所述资源池中接收来自所述n个候选UE的n个第二消息。
在第三方面第二种可能的实现方式中，结合第三方面第一种可能的实现方式，所述资源池包括第一资源和第二资源，其中，所述第一资源用于分配给所述源UE发送所述第一消息和接收所述第二消息，所述第二资源用于分配给所述n个候选UE发送所述第二消息和接收所述第一消息。
在第三方面第三种可能的实现方式中，结合第三方面或第三方面第一种可能的实现方式或第三方面第二种可能的实现方式，所述状态信息包括以下信息中的至少一个或任意组合：
当前的内存占用情况、当前电源的使用情况或剩余电量、中央处理器CPU的处理能力、与所述基站之间的链路状态、或干扰情况。
在第三方面第四种可能的实现方式中，结合第三方面至第三方面第三种可能的实现方式中任一种可能的实现方式，所述第一消息中包含所述n个候选UE需要反馈信息的指示。
在第三方面第五种可能的实现方式中，结合第三方面至第三方面第四种可能的实现方式中任一种可能的实现方式，所述第一消息中包含所述n个候选UE的状态信息需要满足的预设门限。
本发明实施例提供的D2D的数据传输方法及基站网络覆盖范围外的源UE，包括：在源UE向基站网络覆盖范围内的n个候选UE发送第一消息之后，源UE接收来自n个候选UE发送的n个第二消息，其中，n个候选UE中的每个候选UE向所述源UE发送一个第二消息，所述第二消息包括所述每个候选UE的用户标识和/或所述每个候选UE的状态信息；这样，源UE可以根据所述每个候选UE的用户标识和/或所述每个候选UE的状态信息，从所述n个候选UE中确定中继UE，进而通过所述中继UE将数据传输给所述基站，n为不小于2的整数。也就是通过本发明实施例提供的D2D的数据传输方法及源UE，可以在网络覆盖内有多个候选UE时，从多 个候选UE中寻找一个合适的UE作为中继UE，将一个在网络覆盖外的UE的信息传输给基站，因此解决了如何寻找一个网络覆盖内的UE作为中继UE，将一个在网络覆盖外的UE的信息传输给基站的问题。
第四方面，提供一种设备到设备D2D的数据传输方法，所述方法包括：
候选用户设备UE接收源UE发送的第一消息，所述第一消息用于指示所述源UE有数据需要传输给基站，其中，所述源UE为所述基站网络覆盖范围外的UE，所述候选UE为所述基站网络覆盖范围内n个候选UE中的一个UE，n为不小于2的整数；
所述候选UE发送第二消息给所述源UE，所述第二消息包括所述候选UE的用户标识以和/或所述候选UE的状态信息；
当所述候选UE被所述源UE根据所述候选UE的用户标识和/或所述候选UE的状态信息确定为中继UE时，所述候选UE接收所述源UE发送的所述数据并将所述数据传输给所述基站，其中所述中继UE为将所述数据传输给所述基站的UE。
在第四方面第一种可能的实现方式中，结合第四方面，所述候选UE接收源UE发送的第一消息，包括：
所述候选UE在所述基站预先配置的资源池中接收源UE发送的第一消息；
所述候选UE发送第二消息给所述源UE，包括：
所述候选UE在所述资源池中发送第二消息给所述源UE。
在第四方面第二种可能的实现方式中，结合第四方面第一种可能的实现方式，所述资源池中包括第一资源和第二资源，其中，所述第一资源用于分配给所述源UE发送所述第一消息和接收所述第二消息，所述第二资源用于分配给所述n个候选UE发送所述第二消息和接收所述第一消息。
在第四方面第三种可能的实现方式中，结合第四方面或第四方面第一种可能的实现方式或第四方面第二种可能的实现方式，所述状态信息包括以下信息中的至少一个或任意组合：
当前的内存占用情况、当前电源的使用情况或剩余电量、中央处理 器CPU的处理能力、与所述基站之间的链路状态、或干扰情况。
在第四方面第四种可能的实现方式中，结合第四方面至第四方面第三种可能的实现方式中任一种可能的实现方式，所述第一消息中包含所述n个候选UE需要反馈信息的指示。
在第四方面第五种可能的实现方式中，结合第四方面至第四方面第四种可能的实现方式中任一种可能的实现方式，所述第一消息中包含所述n个候选UE的状态信息需要满足的预设门限。
第五方面，提供一种候选用户设备UE，所述候选UE包括：接收单元和发送单元；
所述接收单元，用于接收源UE发送的第一消息，所述第一消息用于指示所述源UE有数据需要传输给基站，其中，所述源UE为所述基站网络覆盖范围外的UE，所述候选UE为所述基站网络覆盖范围内n个候选UE中的一个UE，n为不小于2的整数；
所述发送单元，用于发送第二消息给所述源UE，所述第二消息包括所述候选UE的用户标识以和/或所述候选UE的状态信息；
所述接收单元，还用于当所述候选UE被所述源UE根据所述候选UE的用户标识和/或所述候选UE的状态信息确定为中继UE时，接收所述源UE发送的所述数据，其中所述中继UE为将所述数据传输给所述基站的UE；
所述发送单元，还用于将所述数据传输给所述基站。
在第五方面第一种可能的实现方式中，结合第五方面，所述接收单元具体用于：
在所述基站预先配置的资源池中接收源UE发送的第一消息；
所述发送单元具体用于：
所述候选UE在所述资源池中发送第二消息给所述源UE。
在第五方面第二种可能的实现方式中，结合第五方面第一种可能的实现方式，所述资源池中包括第一资源和第二资源，其中，所述第一资源用于分配给所述源UE发送所述第一消息和接收所述第二消息，所述第二资源用于分配给所述n个候选UE发送所述第二消息和接收所述第一消息。
在第五方面第三种可能的实现方式中，结合第五方面或第五方面第 一种可能的实现方式或第五方面第二种可能的实现方式，所述状态信息包括以下信息中的至少一个或任意组合：
当前的内存占用情况、当前电源的使用情况或剩余电量、中央处理器CPU的处理能力、与所述基站之间的链路状态、或干扰情况。
在第五方面第四种可能的实现方式中，结合第五方面至第五方面第三种可能的实现方式中任一种可能的实现方式，所述第一消息中包含所述n个候选UE需要反馈信息的指示。
在第五方面第五种可能的实现方式中，结合第五方面至第五方面第四种可能的实现方式中任一种可能的实现方式，所述第一消息中包含所述n个候选UE的状态信息需要满足的预设门限。
第六方面，提供一种候选用户设备UE，所述候选UE包括：第一接口电路、第二接口电路、存储器和总线；所述第一接口电路、所述第二接口电路和所述存储器通过所述总线连接并完成相互间的通信；
所述第一接口电路，用于接收源UE发送的第一消息，所述第一消息用于指示所述源UE有数据需要传输给基站，其中，所述源UE为所述基站网络覆盖范围外的UE，所述候选UE为所述基站网络覆盖范围内n个候选UE中的一个UE，n为不小于2的整数；
所述第二接口电路，用于发送第二消息给所述源UE，所述第二消息包括所述候选UE的用户标识以和/或所述候选UE的状态信息；
所述第一接口电路，还用于当所述候选UE被所述源UE根据所述候选UE的用户标识和/或所述候选UE的状态信息确定为中继UE时，接收所述源UE发送的所述数据，其中所述中继UE为将所述数据传输给所述基站的UE；
所述第二接口电路，还用于将所述数据传输给所述基站。
在第六方面第一种可能的实现方式中，结合第六方面，所述第一接口电路具体用于：
在所述基站预先配置的资源池中接收源UE发送的第一消息；
所述第二接口电路具体用于：
所述候选UE在所述资源池中发送第二消息给所述源UE。
在第六方面第二种可能的实现方式中，结合第六方面第一种可能的实现方式，所述资源池中包括第一资源和第二资源，其中，所述第一资源用于分配给所述源UE发送所述第一消息和接收所述第二消息，所述第二资源用于分配给所述n个候选UE发送所述第二消息和接收所述第一消息。
在第六方面第三种可能的实现方式中，结合第六方面或第六方面第一种可能的实现方式或第六方面第二种可能的实现方式，所述状态信息包括以下信息中的至少一个或任意组合：
当前的内存占用情况、当前电源的使用情况或剩余电量、中央处理器CPU的处理能力、与所述基站之间的链路状态、或干扰情况。
在第六方面第四种可能的实现方式中，结合第六方面至第六方面第三种可能的实现方式中任一种可能的实现方式，所述第一消息中包含所述n个候选UE需要反馈信息的指示。
在第六方面第五种可能的实现方式中，结合第六方面至第六方面第四种可能的实现方式中任一种可能的实现方式，所述第一消息中包含所述n个候选UE的状态信息需要满足的预设门限。
本发明实施例提供的D2D的数据传输方法及基站网络覆盖范围内的候选UE，包括：候选UE在接收基站网络覆盖范围外的源UE发送的第一消息之后，发送第二消息给源UE，所述第二消息包括所述候选UE的用户标识以和/或所述候选UE的状态信息；这样，源UE在接收来自n个候选UE发送的第二消息之后，可以根据所述每个候选UE的用户标识和/或所述每个候选UE的状态信息，从所述n个候选UE中确定中继UE，进而通过所述中继UE将数据传输给所述基站，n为不小于2的整数。也就是通过本发明实施例提供的D2D的数据传输方法及候选UE，可以在网络覆盖内有多个候选UE时，从多个候选UE中寻找一个合适的UE作为中继UE，将一个在网络覆盖外的UE的信息传输给基站，因此解决了如何寻找一个网络覆盖内的UE作为中继UE，将一个在网络覆盖外的UE的信息传输给基站的问题。
第七方面，提供一种设备到设备D2D的数据传输系统，所述系统包括：基站、如第二方面任一项所述的源用户设备UE以及至少两个如第三 方面任一项所述的候选UE；或者，
包括：基站、如第五方面任一项所述的源UE以及至少两个如第六方面任一项所述的候选UE。
由于本发明实施例提供的D2D的数据传输系统包括如第二方面任一项所述的源用户设备UE以及至少两个如第三方面任一项所述的候选UE，或者包括如第五方面任一项所述的源UE以及至少两个如第六方面任一项所述的候选UE，因此其所能获得的技术效果也可参考上述实施例，本发明实施例在此不再赘述。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，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性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的D2D的数据传输系统的场景示意图；
图2为本发明实施例提供的D2D的数据传输方法的交互示意图一；
图3为本发明实施例提供的D2D的数据传输方法的交互示意图二；
图4为本发明实施例提供的D2D的数据传输方法的流程示意图一；
图5为本发明实施例提供的D2D的数据传输方法的流程示意图二；
图6为本发明实施例提供的D2D的数据传输方法的流程示意图三；
图7为本发明实施例提供的D2D的数据传输方法的流程示意图四；
图8为本发明实施例提供的源UE的结构示意图一；
图9为本发明实施例提供的候选UE的结构示意图一；
图10为本发明实施例提供的源UE的结构示意图二；
图11为本发明实施例提供的候选UE的结构示意图二。
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描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。在下文描述中，处于解释而非限定的目的，阐述了一些特定 细节以便清楚理解。在一些实施例中，省略了公知的装置、电路和方法的详细描述，以免因不必要的细节使得描述模糊。通篇描述中，相同的引用数字和相同的名称指代相同或相似的元素。
为了便于清楚描述本发明实施例的技术方案，在本发明的实施例中，采用了“第一”、“第二”等字样对功能和作用基本相同的相同项或相似项进行区分，本领域技术人员可以理解“第一”、“第二”等字样并不对数量和执行次序进行限定。
本发明实施例主要应用于D2D的数据传输系统，该D2D的数据传输系统具体可以是长期演进(英文：Long Term Evolution，简称：LTE)，或者高级的长期演进(英文：LTE Advanced，简称：LTE-A)系统，或者未来其它版本的LTE系统，本发明实施例对此不作具体限定。其中，如图1所示，该D2D的数据传输系统中包含基站、所述基站网络覆盖范围内的n个候选UE(假设记为n个UE1，包括：UE1-1、UE1-2、......、UE1-n)、以及所述基站网络覆盖范围外的源UE(假设记为UE2)，n为不小于2的整数。其中，UE2可以与n个UE1中的每个UE1分别进行通信，UE1-m(假设为中继UE)可以与基站之间进行通信，1≤m≤n，m为整数。
基于图1所示的D2D的数据传输系统，本发明实施例提供一种D2D的数据传输方法，如图2所示，包括：
S201、UE2向n个UE1发送第一消息，所述第一消息用于指示UE2有数据需要传输给基站。
S202、n个UE1中的每个UE1分别接收所述第一消息。
S203、n个UE1中的每个UE1分别发送第二消息给UE2，所述第二消息包括该UE1的用户标识和/或该UE1的状态信息。
具体的，本发明实施例中，UE1的状态信息具体是指用于反映UE1状态的信息。优选的，所述状态信息包括以下信息中的至少一个或任意组合：
当前的内存占用情况、当前电源的使用情况或剩余电量、中央处理器(英文：Central Processing Unit，简称：CPU)的处理能力、与所述基站之间的链路状态、或干扰情况。
需要说明的是，此处的“至少一个”具体是指，所述状态信息可以 是当前的内存占用情况、当前电源的使用情况或剩余电量、中央处理器CPU的处理能力、与所述基站之间的链路状态、或干扰情况这些信息中的任意一个信息，也可以这些信息中的任意信息的组合，比如第一信息为当前的内存占用情况和当前电源的使用情况或剩余电量；或者，第一信息为所述基站之间的链路状态和干扰情况，等等，本发明实施例对此不作具体限定。
其中，当前的内存占用情况通常是指当前的内存占用比例或当前的内存剩余比例。比如，当前的内存占用情况为当前的内存占用比例为60％。
当前电源的使用情况通常是指当前电源的已用电量比例。比如，当前电源的使用情况为当前电源的已用电量比例为20％。
当前电源的剩余电量通常是指当前电源的剩余电量比例。比如，当前电源的剩余电量为20％。
CPU的处理能力通常是指在单位时间内，CPU对于信息处理的能力，可以体现在其运行程序的速度上。
与所述基站之间的链路状态包括：UE与基站之间链路稳定情况，UE与基站之间链路的干扰情况等。通常可以通过下行的参考信号接收功率(英文：Reference Signal Receiving Power，简称：RSRP)或者下行的信号与干扰加噪声比(英文：Signal to Interference plus Noise Ratio，简称：SINR)的数值来体现具体的链路状态。
干扰情况包括：UE2与UE1之间链路的干扰或者噪声情况。
S204、UE2接收来自n个UE1的n个第二消息，其中，每个UE1向UE2发送一个第二消息。
S205、UE2根据每个UE1的用户标识和/或每个UE1的状态信息，从n个UE1中确定中继UE，所述中继UE为将所述数据传输给所述基站的UE。
具体的，本发明实施例中，UE2根据每个UE1的用户标识和/或每个UE1的状态信息，从n个UE1中确定中继UE，具体可以包括：
UE2根据每个UE1的用户标识和/或每个UE1的状态信息，结合预设策略，从n个UE1中确定中继UE。
比如，若状态信息包括当前的内存占用情况，则预设策略可以包括： 当前的内存占用比例最小的UE1为中继UE；或者，
若状态信息包括当前电源的剩余电量，则预设策略可以包括：当前电源的剩余电量最多的UE1为中继UE；或者，
若状态信息包括CPU的处理能力，则预设策略可以包括：CPU的处理能力最强的UE1为中继UE；或者，
若状态信息包括与所述基站之间的链路状态，则预设策略可以包括：与所述基站之间的链路状态最优的UE1为中继UE；或者，
若状态信息包括干扰情况，则预设策略可以包括：干扰最少的UE1为中继UE。
若状态信息包括当前的内存占用情况和当前电源的剩余电量，则预设策略可以包括：当前的内存占用比例小于60％的UE1中当前电源的剩余电量最多的UE1为中继UE。
当然，预设策略还可以为其它，上述仅是示例性说明，本发明实施例对此不作具体限定。
S206、UE2通过所述中继UE将所述数据传输给所述基站。
在UE2确定中继UE之后，通过所述中继UE将所述数据传输给所述基站。
示例性的，下面以n＝2为例，将图2所示的D2D的数据传输方法展开说明，如图3所示，包括：
S301、UE2向UE1-1和UE1-2发送第一消息，所述第一消息用于指示UE2有数据需要传输给基站。
S302a、UE1-1接收所述第一消息。
S303a、UE1-1发送第二消息给UE2，所述第二消息包括UE1-1的用户标识和/或UE1-1的状态信息。
S304a、UE2接收UE1-1发送的第二消息。
S302b、UE1-2接收所述第一消息。
S303b、UE1-2发送第二消息给UE2，所述第二消息包括UE1-2的用户标识和/或UE1-2的状态信息。
S304b、UE2接收UE1-2发送的第二消息。
需要说明的是，步骤S302a-304a与步骤S302b-304b之间没有必然的先后执行顺序，可以先执行步骤S302a-304a，后执行步骤S302b-304b；也可以先执行步骤S302b-304b，后执行步骤S302a-304a；还可以同时执行步骤S302a-304a与步骤S302b-304b，本发明实施例对此不作具体限定。
另外，步骤S303a与步骤S303b中状态信息的相关解释可参考图2所示的实施例中步骤S203的相关描述，此处不再赘述。
S305、UE2根据UE1-1的用户标识和/或UE1-的状态信息和UE1-2的用户标识和/或UE2-的状态信息，从UE1-1和UE1-2中确定中继UE，所述中继UE为将所述数据传输给所述基站的UE。
具体的，UE2根据UE1-1的用户标识和/或UE1-的状态信息和UE1-2的用户标识和/或UE2-的状态信息，从UE1-1和UE1-2中确定中继UE的具体实现可参考图2所示的实施例中的步骤S205的相关描述，此处不再赘述。
S306、UE2通过所述中继UE将所述数据传输给所述基站。
需要说明的是，图3所示的示例以n＝2为例进行说明，当然，n也可以为大于2的其它整数值，只要根据图3所示的示例类推即可，本发明实施例在此不再一一赘述。
基于本发明实施例提供的D2D的数据传输方法，由于UE2(基站网络覆盖范围外的UE)向n个UE1(基站网络覆盖范围内的n个候选UE)发送第一消息之后，n个UE1中的每个UE1分别发送第二消息给UE2，所述第二消息包括该UE1的用户标识和/或该UE1的状态信息；这样，UE2在接收来自n个UE1的n个第二消息之后，可以根据n个UE1中的每个UE1的用户标识和/或每个UE1的状态信息，从n个UE1中确定中继UE，进而通过所述中继UE将数据传输给所述基站，n为不小于2的整数。也就是提供了一种在网络覆盖内通常有多个候选UE时，从多个候选UE中寻找一个合适的UE作为中继UE，将一个在网络覆盖外的UE的信息传输给基站的解决方案，因此解决了如何寻找一个网络覆盖内的UE作为中继UE，将一个在网络覆盖外的UE的信息传输给基站的问题。
进一步的，为了避免和小区通信发生干扰，基站可以为UE2和n个 UE1中的每个UE1配置一个资源池，UE2可以在该资源池中接收与发送消息；同时，n个UE1中的每个UE1可以在该资源池中接收与发送消息。即，在图2所示的实施例中，UE2向n个UE1发送第一消息(步骤S201)，具体可以包括：
UE2在基站预先配置的资源池中向n个UE1发送第一消息。
n个UE1中的每个UE1分别接收所述第一消息(步骤S202)，具体可以包括：
n个UE1中的每个UE1分别在所述资源池中接收所述第一消息。
n个UE1中的每个UE1分别发送第二消息给UE2(步骤S203)，具体可以包括：
n个UE1中的每个UE1分别在所述资源池中发送第二消息给UE2。
UE2接收来自n个UE1的n个第二消息(步骤S204)，具体可以包括：
UE2在所述资源池中接收来自n个UE1的n个第二消息。
优选的，为了避免UE2发送的第一消息与n个UE1发送的n个第二消息发生资源冲突，可以在所述基站预先配置的资源池中分配不同的资源分别给UE2和n个UE1，即：
所述资源池中包括第一资源和第二资源，其中，所述第一资源用于分配给所述UE2发送所述第一消息和接收所述第二消息，所述第二资源用于分配给所述n个UE1发送所述第二消息和接收所述第一消息。
进一步的，在上述各实施例中，第一消息中还可以包含所述n个UE1需要反馈信息的指示。
进而，n个UE1中的每个UE1分别发送第二消息给UE2(步骤S203)，具体可以包括：
n个UE1中的每个UE1分别根据所述n个UE1需要反馈信息的指示，发送第二消息给UE2。
其中，该反馈信息的指示具体可以是n个UE1中的每个UE1需要反馈的信息包括所述状态信息，本发明实施例对此不作具体限定。
优选的，所述第一消息中还包含n个UE1的状态信息需要满足的预设门限。
这样，在n个UE1中的每个UE1分别发送第二消息给UE2之前，还可以包括：
n个UE1中的每个UE1根据所述n个UE1的状态信息需要满足的预设门限，确定该UE1的状态信息是否满足所述预设门限。
n个UE1中的每个UE1分别发送第二消息给UE2，具体可以包括：
若该UE1的所述状态信息满足所述预设门限，该UE1发送第二消息给UE2。
当然，若该UE1的所述状态信息不满足所述预设门限，则不发送第二消息给UE2，本发明实施例对此不足具体限定。
其中，若状态信息包括当前的内存占用情况，则预设门限可以包括：当前的内存占用比例小于预设阈值；或者，
若状态信息包括当前电源的剩余电量，则预设门限可以包括：当前电源的剩余电量大于预设阈值；或者，
若状态信息包括CPU的处理能力，则预设门限可以包括：CPU的处理能力大于预设阈值；或者，
若状态信息包括与所述基站之间的链路状态，则预设门限可以包括：与所述基站之间的链路状态大于预设预设阈值；或者，
若状态信息包括干扰情况，则预设门限可以包括：干扰小于预设预设阈值。
当然，对于具体的状态信息，预设门限还可以为其它，上述仅是提供几种可能的预设门限，本发明实施例对此不作具体限定。
需要说明的是，此处的“状态信息需要满足预设门限”，具体是指，状态信息中的每个信息均需要满足各自的预设门限。
示例性的，假设状态信息包括当前电源的剩余电量和当前的内存占用情况，而当前电源的剩余电量的预设门限为大于等于50％，当前的内存占用情况的预设门限为小于等于40％。则若UE1-1中的当前电源的剩余电量为70％，当前的内存占用情况为50％，此时，UE1-1的状态信息中的当前的内存占用情况不满足预设门限，则不发送第二消息给UE2。若UE1-3中的当前电源的剩余电量为70％，当前的内存占用情况为20％，此时，UE1-3 的状态信息满足预设门限，则发送第二消息给UE2，这样可以大大减少UE2从多个候选UE中选择一个合适的UE作为中继UE的工作量，降低了UE2的功耗，也节省了信令开销。
基于图1所示的D2D的数据传输系统，本发明实施例还提供一种D2D的数据传输方法，以UE2为执行主体进行描述，如图4所示，包括：
S401、UE2向n个UE1发送第一消息，所述第一消息用于指示UE2有数据需要传输给基站。
S402、UE2接收来自n个UE1的n个第二消息，其中，n个UE1中的每个UE1向UE2发送一个第二消息，所述第二消息包括该UE1的用户标识和/或该UE1的状态信息。
具体的，状态信息的相关解释可参考图2所示的实施例中步骤S203的相关描述，本发明实施例在此不再赘述。
S403、UE2根据n个UE1中的每个UE1的用户标识和/或每个UE1的状态信息，从n个UE1中确定中继UE，所述中继UE为将所述数据传输给所述基站的UE。
具体的，步骤S403的具体实现方式可参考图2所示的实施例中步骤S205的相关描述，本发明实施例在此不再赘述。
S404、UE2通过所述中继UE将所述数据传输给所述基站。
进一步的，基站可以预先配置一个资源池，UE2可以在该资源池中接收与发送消息。即，如图5所示，UE2向n个UE1发送第一消息(步骤S401)，具体可以包括：
S401a、UE2在基站预先配置的资源池中向n个UE1发送第一消息。
UE2接收来自n个UE1的n个第二消息(步骤S402)，具体可以包括：
S402a、UE2在所述资源池中接收来自n个UE1的n个第二消息。
优选的，为了避免UE2发送的第一消息与n个UE1发送的n个第二消息发生资源冲突，可以在给基站预先配置的资源池中分配不同的资源分别给UE2和n个UE1，即：
基站预先配置的资源池中包括第一资源和第二资源，其中，所述第一资源用于分配给所述UE2发送所述第一消息和接收所述第二消息，所述 第二资源用于分配给所述n个UE1发送所述第二消息和接收所述第一消息。
进一步的，在上述各实施例中，第一消息中还可以包含所述n个UE1需要反馈信息的指示。
其中，该反馈信息的指示具体可以是n个UE1中的每个UE1需要反馈的信息包括所述状态信息。相关描述可参考上述交互实施例，本发明实施例在此不再赘述。
优选的，所述第一消息中还包含n个UE1的状态信息需要满足的预设门限。
相关描述及示例可参考上述交互实施例，本发明实施例在此不再赘述。
基于本发明实施例提供的D2D的数据传输方法，由于UE2(基站网络覆盖范围外的UE)向n个UE1(基站网络覆盖范围内的n个候选UE)发送第一消息之后，UE2接收来自n个UE1的n个第二消息，其中，n个UE1中的每个UE1向UE2发送一个第二消息，所述第二消息包括该UE1的用户标识和/或该UE1的状态信息；这样，UE2可以根据n个UE1中的每个UE1的用户标识和/或每个UE1的状态信息，从n个UE1中确定中继UE，进而通过所述中继UE将数据传输给所述基站，n为不小于2的整数。也就是提供了一种在网络覆盖内通常有多个候选UE时，从多个候选UE中寻找一个合适的UE作为中继UE，将一个在网络覆盖外的UE的信息传输给基站的解决方案。因此解决了如何寻找一个网络覆盖内的UE作为中继UE，将一个在网络覆盖外的UE的信息传输给基站的问题。
基于图1所示的D2D的数据传输系统，本发明实施例还提供一种D2D的数据传输方法，以UE1-x(假设为n个UE1中的任意一个UE)为执行主体进行描述，如图6所示，包括：
S601、UE1-x接收UE2发送的第一消息，所述第一消息用于指示UE2有数据需要传输给基站。
S602、UE1-x发送第二消息给UE2，所述第二消息包括UE1-x的用户标识和/或UE1-x的状态信息。
具体的，状态信息的相关解释可参考图2所示的实施例中步骤S203的相关描述，本发明实施例在此不再赘述。
S603、当UE1-x被UE2根据UE1-x的用户标识和/或UE1-x的状态信息确定为中继UE时，UE1-x接收所述UE2发送的所述数据并将所述数据传输给所述基站，其中所述中继UE为将所述数据传输给所述基站的UE。
具体的，UE2根据UE1-x的用户标识和/或UE1-x的状态信息将UE1-x确定为中继UE的具体实现可参考上述交互实施例的描述，此处不再赘述。
进一步的，基站可以预先配置一个资源池，UE1-x可以在该资源池中接收与发送消息。即，如图7所示，UE1-x接收UE2发送的第一消息(步骤S601)，具体可以包括：
S601a、UE1-x在基站预先配置的资源池中接收UE2发送的第一消息。
UE1-x发送第二消息给UE2(步骤S602)，具体可以包括：
S602a、UE1-x在所述资源池中发送第二消息给UE2。
优选的，为了避免UE2发送的第一消息与UE1-x发送的第二消息发生资源冲突，可以在给基站预先配置的资源池中分配不同的资源分别给UE2和UE1-x，即：
基站预先配置的资源池中包括第一资源和第二资源，其中，所述第一资源用于分配给所述UE2发送所述第一消息和接收n个UE1中的每个UE1分别发送的所述第二消息，所述第二资源用于分配给n个UE1(包括UE1-x)发送所述第二消息和接收所述第一消息。
进一步的，在上述各实施例中，第一消息中还可以包含所述n个UE1需要反馈信息的指示。
进而，UE1-x发送第二消息给UE2(步骤S602)，具体可以包括：
UE1-x根据所述n个UE1需要反馈信息的指示，发送第二消息给UE2。
其中，该反馈信息的指示具体可以是n个UE1中的每个UE1需要反馈的信息包括所述状态信息，本发明实施例对此不作具体限定。
优选的，所述第一消息中还包含n个UE1的状态信息需要满足的预设门限。
这样，在UE1-x发送第二消息给UE2(步骤S602)之前，还可以包 括：
UE1-x根据所述n个UE1的状态信息需要满足的预设门限，确定UE1-x的状态信息是否满足预设门限。
UE1-x发送第二消息给UE2，具体可以包括：
若UE1-x的状态信息满足预设门限，UE1-x发送第二消息给UE2。
当然，若UE1-x的状态信息不满足预设门限，则不发送第二消息给UE2，本发明实施例对此不足具体限定。
相关示例及有益效果的描述可参考上述交互实施例，本发明实施例在此不再赘述。
基于本发明实施例提供的D2D的数据传输方法，由于UE1-x(基站网络覆盖范围内的n个候选UE中的任意一个UE)在接收UE2(基站网络覆盖范围外的UE)发送的第一消息之后，UE1-x发送第二消息给UE2，所述第二消息包括UE1-x的用户标识和/或UE1-x的状态信息；这样，UE2在接收来自n个UE1的n个第二消息之后，可以根据n个UE1中的每个UE1的用户标识和/或每个UE1的状态信息，从n个UE1中确定中继UE，进而通过所述中继UE将数据传输给所述基站，n为不小于2的整数。也就是提供了一种在网络覆盖内通常有多个候选UE时，从多个候选UE中寻找一个合适的UE作为中继UE，将一个在网络覆盖外的UE的信息传输给基站的解决方案。因此解决了如何寻找一个网络覆盖内的UE作为中继UE，将一个在网络覆盖外的UE的信息传输给基站的问题。
本发明实施例还提供一种源UE80，如图8所示，所述源UE80包括：发送单元801、接收单元802和处理单元803。
所述发送单元801，用于向n个候选UE发送第一消息，所述第一消息用于指示所述源UE80有数据需要传输给基站，其中，所述源UE80为所述基站网络覆盖范围外的UE，所述n个候选UE为所述基站网络覆盖范围内的UE，n为不小于2的整数。
所述接收单元802，用于接收来自所述n个候选UE的n个第二消息，其中，所述n个候选UE中的每个候选UE向所述源UE80发送一个第二消息，所述第二消息包括所述每个候选UE的用户标识和/或所述每个候选 UE的状态信息。
所述处理单元803，用于根据所述每个候选UE的用户标识和/或所述每个候选UE的状态信息，从所述n个候选UE中确定中继UE，所述中继UE为将所述数据传输给所述基站的UE。
所述发送单元801，还用于通过所述中继UE将所述数据传输给所述基站。
进一步的，所述发送单元801具体用于：
在所述基站预先配置的资源池中向n个候选UE发送第一消息。
所述接收单元802具体用于：
在所述资源池中接收来自所述n个候选UE的n个第二消息。
优选的，所述资源池包括第一资源和第二资源，其中，所述第一资源用于分配给所述源UE80发送所述第一消息和接收所述第二消息，所述第二资源用于分配给所述n个候选UE发送所述第二消息和接收所述第一消息。
一种可能的实现方式中，所述状态信息包括以下信息中的至少一个或任意组合：
当前的内存占用情况、当前电源的使用情况或剩余电量、中央处理器CPU的处理能力、与所述基站之间的链路状态、或干扰情况。
优选的，所述第一消息中包含所述n个候选UE需要反馈信息的指示。
优选的，所述第一消息中包含所述n个候选UE的状态信息需要满足的预设门限。
需要说明的是，本实施例中的发送单元801可以为源UE80上具备发射功能的接口电路，如发射机；接收单元802可以为源UE80上具备接收功能的接口电路，如接收机；处理单元803可以为单独设立的处理器，也可以集成在源UE80的某一个处理器中实现，此外，也可以以程序代码的形式存储于源UE80的存储器中，由源UE80的某一个处理器调用并执行以上处理单元803的功能。这里所述的处理器可以是一个中央处理器(英文：Central Process ing Unit，简称：CPU)，或者是特定集成电路(英文：Appl ication Specific Integrated Circuit，简称：ASIC)，或者是被配 置成实施本发明实施例的一个或多个集成电路。
具体的，通过本发明实施例提供的源UE进行D2D的数据传输的方法可参考上述方法实施例，本发明实施例在此不再赘述。
本发明实施例提供一种源UE，所述源UE为基站网络覆盖范围外的UE，在源UE向所述基站网络覆盖范围内的n个候选UE发送第一消息之后，源UE接收来自n个候选UE发送的n个第二消息，其中，n个候选UE中的每个候选UE向所述源UE发送一个第二消息，所述第二消息包括所述每个候选UE的用户标识和/或所述每个候选UE的状态信息；这样，源UE可以根据所述每个候选UE的用户标识和/或所述每个候选UE的状态信息，从所述n个候选UE中确定中继UE，进而通过所述中继UE将数据传输给所述基站，n为不小于2的整数。也就是通过本发明实施例提供的源UE，可以在网络覆盖内有多个候选UE时，从多个候选UE中寻找一个合适的UE作为中继UE，将一个在网络覆盖外的UE的信息传输给基站。因此解决了如何寻找一个网络覆盖内的UE作为中继UE，将一个在网络覆盖外的UE的信息传输给基站的问题。
本发明实施例提供一种候选UE90，如图9所示，所述候选UE90包括：接收单元901和发送单元902。
所述接收单元901，用于接收源UE发送的第一消息，所述第一消息用于指示所述源UE有数据需要传输给基站，其中，所述源UE为所述基站网络覆盖范围外的UE，所述候选UE90为所述基站网络覆盖范围内n个候选UE90中的一个UE，n为不小于2的整数。
所述发送单元902，用于发送第二消息给所述源UE，所述第二消息包括所述候选UE90的用户标识以和/或所述候选UE90的状态信息。
所述接收单元901，还用于当所述候选UE90被所述源UE根据所述候选UE90的用户标识和/或所述候选UE90的状态信息确定为中继UE时，接收所述源UE发送的所述数据，其中所述中继UE为将所述数据传输给所述基站的UE。
所述发送单元902，还用于将所述数据传输给所述基站。
进一步的，所述接收单元901具体用于：
在所述基站预先配置的资源池中接收源UE发送的第一消息。
所述发送单元902具体用于：
所述候选UE90在所述资源池中发送第二消息给所述源UE。
优选的，所述资源池中包括第一资源和第二资源，其中，所述第一资源用于分配给所述源UE发送所述第一消息和接收所述第二消息，所述第二资源用于分配给所述n个候选UE90发送所述第二消息和接收所述第一消息。
一种可能的实现方式中，所述状态信息包括以下信息中的至少一个或任意组合：
当前的内存占用情况、当前电源的使用情况或剩余电量、中央处理器CPU的处理能力、与所述基站之间的链路状态、或干扰情况。
优选的，所述第一消息中包含所述n个候选UE90需要反馈信息的指示。
优选的，所述第一消息中包含所述n个候选UE90的状态信息需要满足的预设门限。
需要说明的是，本实施例中的发送单元902可以为候选UE90上具备发射功能的接口电路，如发射机；接收单元901可以为候选UE90上具备接收功能的接口电路，如接收机。
具体的，通过本发明实施例提供的候选UE进行D2D的数据传输的方法可参考上述方法实施例，本发明实施例在此不再赘述。
本发明实施例提供一种候选UE，所述候选UE为基站网络覆盖范围内n个候选UE中的一个UE。其中，候选UE在接收源UE发送的第一消息之后，发送第二消息给源UE，所述第二消息包括所述候选UE的用户标识以和/或所述候选UE的状态信息；这样，源UE在接收来自n个候选UE发送的第二消息之后，可以根据所述每个候选UE的用户标识和/或所述每个候选UE的状态信息，从所述n个候选UE中确定中继UE，进而通过所述中继UE将数据传输给所述基站，n为不小于2的整数。也就是通过本发明实施例提供的候选UE，可以在网络覆盖内有多个候选UE时，从多个候选UE中寻找一个合适的UE作为中继UE，将一个在网络覆盖外的UE的信息 传输给基站。因此解决了如何寻找一个网络覆盖内的UE作为中继UE，将一个在网络覆盖外的UE的信息传输给基站的问题。
本发明实施例还提供一种源UE100，如图10所示，所述源UE100包括：处理器1001、第一接口电路1002a、第二接口电路1002b、存储器1003和总线1004；所述处理器1001、所述第一接口电路1002a、所述第二接口电路1002b和所述存储器1003通过所述总线1004连接并完成相互间的通信。
需要说明的是，这里的处理器1001可以是一个处理器1001，也可以是多个处理元件的统称。例如，该处理器1001可以是CPU，也可以是ASIC，或者是被配置成实施本发明实施例的一个或多个集成电路，例如：一个或多个微处理器1001(英文：digital singnal processor，简称：DSP)，或，一个或者多个现场可编程门阵列(英文：Field Programmable Gate Array，简称：FPGA)。
存储器1003可以是一个存储装置，也可以是多个存储元件的统称，且用于存储可执行程序代码或接入网管理设备运行所需要参数、数据等。且存储器1003可以包括随机存储器(英文：Random-Access Memory，简称：RAM)，也可以包括非易失性存储器(英文：non-volatile memory，简称：NVRAM)，例如磁盘存储器，闪存(Flash)等。
总线1004可以是工业标准体系结构(英文：Industry Standard Architecture，简称：ISA)总线、外部设备互连(英文：Peripheral Component，简称：PCI)总线或扩展工业标准体系结构(英文：Extended Industry Standard Architecture，简称：EISA)总线等。该总线1004可以分为地址总线、数据总线、控制总线等。为便于表示，图10中仅用一条粗线表示总线1004，但并不表示仅有一根总线或一种类型的总线。
所述第一接口电路1002a，用于向n个候选UE发送第一消息，所述第一消息用于指示所述源UE100有数据需要传输给基站，其中，所述源UE100为所述基站网络覆盖范围外的UE，所述n个候选UE为所述基站网络覆盖范围内的UE，n为不小于2的整数。
所述第二接口电路1002b，用于接收来自所述n个候选UE的n个第 二消息，其中，所述n个候选UE中的每个候选UE向所述源UE100发送一个第二消息，所述第二消息包括所述每个候选UE的用户标识和/或所述每个候选UE的状态信息。
所述处理器1001，用于根据所述每个候选UE的用户标识和/或所述每个候选UE的状态信息，从所述n个候选UE中确定中继UE，所述中继UE为将所述数据传输给所述基站的UE。
所述第一接口电路1002a，还用于通过所述中继UE将所述数据传输给所述基站。
进一步的，所述第一接口电路1002a具体用于：
在所述基站预先配置的资源池中向n个候选UE发送第一消息。
所述第二接口电路1002b具体用于：
在所述资源池中接收来自所述n个候选UE的n个第二消息。
优选的，所述资源池包括第一资源和第二资源，其中，所述第一资源用于分配给所述源UE100发送所述第一消息和接收所述第二消息，所述第二资源用于分配给所述n个候选UE发送所述第二消息和接收所述第一消息。
一种可能的实现方式中，所述状态信息包括以下信息中的至少一个或任意组合：
当前的内存占用情况、当前电源的使用情况或剩余电量、中央处理器1001CPU的处理能力、与所述基站之间的链路状态、或干扰情况。
优选的，所述第一消息中包含所述n个候选UE需要反馈信息的指示。
优选的，所述第一消息中包含所述n个候选UE的状态信息需要满足的预设门限。
具体的，通过本发明实施例提供的源UE进行D2D的数据传输的方法可参考上述方法实施例，本发明实施例在此不再赘述。
本发明实施例提供一种源UE，所述源UE为基站网络覆盖范围外的UE，在源UE向所述基站网络覆盖范围内的n个候选UE发送第一消息之后，源UE接收来自n个候选UE发送的n个第二消息，其中，n个候选UE中的每个候选UE向所述源UE发送一个第二消息，所述第二消息包括所述每 个候选UE的用户标识和/或所述每个候选UE的状态信息；这样，源UE可以根据所述每个候选UE的用户标识和/或所述每个候选UE的状态信息，从所述n个候选UE中确定中继UE，进而通过所述中继UE将数据传输给所述基站，n为不小于2的整数。也就是通过本发明实施例提供的源UE，可以在网络覆盖内有多个候选UE时，从多个候选UE中寻找一个合适的UE作为中继UE，将一个在网络覆盖外的UE的信息传输给基站。因此解决了如何寻找一个网络覆盖内的UE作为中继UE，将一个在网络覆盖外的UE的信息传输给基站的问题。
本发明实施还提供一种候选UE110，如图11所示，所述候选UE110包括：第一接口电路1101a、第二接口电路1101b、存储器1102和总线1103；所述第一接口电路1101a、所述第二接口电路1101b和所述存储器1102通过所述总线1103连接并完成相互间的通信。
需要说明的是，这里的存储器1102可以是一个存储装置，也可以是多个存储元件的统称，且用于存储可执行程序代码或接入网管理设备运行所需要参数、数据等。且存储器1102可以包括RAM或NVRAM，例如磁盘存储器，闪存(Flash)等。
总线1103可以是ISA总线、PCI总线或EISA总线等。该总线1103可以分为地址总线、数据总线、控制总线等。为便于表示，图11中仅用一条粗线表示总线1103，但并不表示仅有一根总线或一种类型的总线。
所述第一接口电路1101a，用于接收源UE发送的第一消息，所述第一消息用于指示所述源UE有数据需要传输给基站，其中，所述源UE为所述基站网络覆盖范围外的UE，所述候选UE110为所述基站网络覆盖范围内n个候选UE110中的一个UE，n为不小于2的整数。
所述第二接口电路1101b，用于发送第二消息给所述源UE，所述第二消息包括所述候选UE110的用户标识以和/或所述候选UE110的状态信息。
所述第一接口电路1101a，还用于当所述候选UE110被所述源UE根据所述候选UE110的用户标识和/或所述候选UE110的状态信息确定为中继UE时，接收所述源UE发送的所述数据，其中所述中继UE为将所述数 据传输给所述基站的UE。
所述第二接口电路1101b，还用于将所述数据传输给所述基站。
进一步的，所述第一接口电路1101a具体用于：
在所述基站预先配置的资源池中接收源UE发送的第一消息。
所述第二接口电路1101b具体用于：
所述候选UE110在所述资源池中发送第二消息给所述源UE。
优选的，所述资源池中包括第一资源和第二资源，其中，所述第一资源用于分配给所述源UE发送所述第一消息和接收所述第二消息，所述第二资源用于分配给所述n个候选UE110发送所述第二消息和接收所述第一消息。
一种可能的实现方式中，所述状态信息包括以下信息中的至少一个或任意组合：
当前的内存占用情况、当前电源的使用情况或剩余电量、中央处理器CPU的处理能力、与所述基站之间的链路状态、或干扰情况。
优选的，所述第一消息中包含所述n个候选UE110需要反馈信息的指示。
优选的，所述第一消息中包含所述n个候选UE110的状态信息需要满足的预设门限。
具体的，通过本发明实施例提供的候选UE进行D2D的数据传输的方法可参考上述方法实施例，本发明实施例在此不再赘述。
本发明实施例提供一种候选UE，所述候选UE为基站网络覆盖范围内n个候选UE中的一个UE。候选UE在接收源UE发送的第一消息之后，发送第二消息给源UE，所述第二消息包括所述候选UE的用户标识以和/或所述候选UE的状态信息；这样，源UE在接收来自n个候选UE发送的第二消息之后，可以根据所述每个候选UE的用户标识和/或所述每个候选UE的状态信息，从所述n个候选UE中确定中继UE，进而通过所述中继UE将数据传输给所述基站，n为不小于2的整数。也就是通过本发明实施例提供的候选UE，可以在网络覆盖内有多个候选UE时，从多个候选UE中寻找一个合适的UE作为中继UE，将一个在网络覆盖外的UE的信息传 输给基站。因此解决了如何寻找一个网络覆盖内的UE作为中继UE，将一个在网络覆盖外的UE的信息传输给基站的问题。
此外，还提供一种计算可读媒体(或介质)，包括在被执行时进行以下操作的计算机可读指令：执行上述实施例中如图2-图7所示的方法实施例中的操作。
另外，还提供一种计算机程序产品，包括上述计算机可读介质。
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。
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，上述描述的装置，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。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，所述模块或单元的划分，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全部或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)或处理器(processor)执行本发明各个实施例所述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所述权利要求的保护范围为准。

Claims (37)

  1. 一种设备到设备D2D的数据传输方法，其特征在于，所述方法包括：
    源用户设备UE向n个候选UE发送第一消息，所述第一消息用于指示所述源UE有数据需要传输给基站，其中，所述源UE为所述基站网络覆盖范围外的UE，所述n个候选UE为所述基站网络覆盖范围内的UE，n为不小于2的整数；
    所述源UE接收来自所述n个候选UE的n个第二消息，其中，所述n个候选UE中的每个候选UE向所述源UE发送一个第二消息，所述第二消息包括所述每个候选UE的用户标识和/或所述每个候选UE的状态信息；
    所述源UE根据所述每个候选UE的用户标识和/或所述每个候选UE的状态信息，从所述n个候选UE中确定中继UE，所述中继UE为将所述数据传输给所述基站的UE；
    所述源UE通过所述中继UE将所述数据传输给所述基站。
  2. 根据权利要求1所述的方法，其特征在于，
    所述源UE向n个候选UE发送第一消息，包括：
    所述源UE在所述基站预先配置的资源池中向n个候选UE发送第一消息；
    所述源UE接收来自所述n个候选UE的n个第二消息，包括：
    所述源UE在所述资源池中接收来自所述n个候选UE的n个第二消息。
  3. 根据权利要求2所述的方法，其特征在于，所述资源池包括第一资源和第二资源，其中，所述第一资源用于分配给所述源UE发送所述第一消息和接收所述第二消息，所述第二资源用于分配给所述n个候选UE发送所述第二消息和接收所述第一消息。
  4. 根据权利要求1-3中任一项所述的方法，其特征在于，所述状态信息包括以下信息中的至少一个或任意组合：
    当前的内存占用情况、当前电源的使用情况或剩余电量、中央处理器CPU的处理能力、与所述基站之间的链路状态、或干扰情况。
  5. 根据权利要求1-4中任一项所述的方法，其特征在于，所述第一 消息中包含所述n个候选UE需要反馈信息的指示。
  6. 根据权利要求1-5中任一项所述的方法，其特征在于，所述第一消息中包含所述n个候选UE的状态信息需要满足的预设门限。
  7. 一种设备到设备D2D的数据传输方法，其特征在于，所述方法包括：
    候选用户设备UE接收源UE发送的第一消息，所述第一消息用于指示所述源UE有数据需要传输给基站，其中，所述源UE为所述基站网络覆盖范围外的UE，所述候选UE为所述基站网络覆盖范围内n个候选UE中的一个UE，n为不小于2的整数；
    所述候选UE发送第二消息给所述源UE，所述第二消息包括所述候选UE的用户标识以和/或所述候选UE的状态信息；
    当所述候选UE被所述源UE根据所述候选UE的用户标识和/或所述候选UE的状态信息确定为中继UE时，所述候选UE接收所述源UE发送的所述数据并将所述数据传输给所述基站，其中所述中继UE为将所述数据传输给所述基站的UE。
  8. 根据权利要求7所述的方法，其特征在于，
    所述候选UE接收源UE发送的第一消息，包括：
    所述候选UE在所述基站预先配置的资源池中接收源UE发送的第一消息；
    所述候选UE发送第二消息给所述源UE，包括：
    所述候选UE在所述资源池中发送第二消息给所述源UE。
  9. 根据权利要求8所述的方法，其特征在于，所述资源池中包括第一资源和第二资源，其中，所述第一资源用于分配给所述源UE发送所述第一消息和接收所述第二消息，所述第二资源用于分配给所述n个候选UE发送所述第二消息和接收所述第一消息。
  10. 根据权利要求7-9中任一项所述的方法，其特征在于，所述状态信息包括以下信息中的至少一个或任意组合：
    当前的内存占用情况、当前电源的使用情况或剩余电量、中央处理器CPU的处理能力、与所述基站之间的链路状态、或干扰情况。
  11. 根据权利要求7-10中任一项所述的方法，其特征在于，所述第一消息中包含所述n个候选UE需要反馈信息的指示。
  12. 根据权利要求7-11中任一项所述的方法，其特征在于，所述第一消息中包含所述n个候选UE的状态信息需要满足的预设门限。
  13. 一种源用户设备UE，其特征在于，所述源UE包括：发送单元、接收单元和处理单元；
    所述发送单元，用于向n个候选UE发送第一消息，所述第一消息用于指示所述源UE有数据需要传输给基站，其中，所述源UE为所述基站网络覆盖范围外的UE，所述n个候选UE为所述基站网络覆盖范围内的UE，n为不小于2的整数；
    所述接收单元，用于接收来自所述n个候选UE的n个第二消息，其中，所述n个候选UE中的每个候选UE向所述源UE发送一个第二消息，所述第二消息包括所述每个候选UE的用户标识和/或所述每个候选UE的状态信息；
    所述处理单元，用于根据所述每个候选UE的用户标识和/或所述每个候选UE的状态信息，从所述n个候选UE中确定中继UE，所述中继UE为将所述数据传输给所述基站的UE；
    所述发送单元，还用于通过所述中继UE将所述数据传输给所述基站。
  14. 根据权利要求13所述的源UE，其特征在于，
    所述发送单元具体用于：
    在所述基站预先配置的资源池中向n个候选UE发送第一消息；
    所述接收单元具体用于：
    在所述资源池中接收来自所述n个候选UE的n个第二消息。
  15. 根据权利要求14所述的源UE，其特征在于，所述资源池包括第一资源和第二资源，其中，所述第一资源用于分配给所述源UE发送所述第一消息和接收所述第二消息，所述第二资源用于分配给所述n个候选UE发送所述第二消息和接收所述第一消息。
  16. 根据权利要求13-15中任一项所述的源UE，其特征在于，所述状态信息包括以下信息中的至少一个或任意组合：
    当前的内存占用情况、当前电源的使用情况或剩余电量、中央处理器CPU的处理能力、与所述基站之间的链路状态、或干扰情况。
  17. 根据权利要求13-16中任一项所述的源UE，其特征在于，所述第一消息中包含所述n个候选UE需要反馈信息的指示。
  18. 根据权利要求13-17中任一项所述的源UE，其特征在于，所述第一消息中包含所述n个候选UE的状态信息需要满足的预设门限。
  19. 一种候选用户设备UE，其特征在于，所述候选UE包括：接收单元和发送单元；
    所述接收单元，用于接收源UE发送的第一消息，所述第一消息用于指示所述源UE有数据需要传输给基站，其中，所述源UE为所述基站网络覆盖范围外的UE，所述候选UE为所述基站网络覆盖范围内n个候选UE中的一个UE，n为不小于2的整数；
    所述发送单元，用于发送第二消息给所述源UE，所述第二消息包括所述候选UE的用户标识以和/或所述候选UE的状态信息；
    所述接收单元，还用于当所述候选UE被所述源UE根据所述候选UE的用户标识和/或所述候选UE的状态信息确定为中继UE时，接收所述源UE发送的所述数据，其中所述中继UE为将所述数据传输给所述基站的UE；
    所述发送单元，还用于将所述数据传输给所述基站。
  20. 根据权利要求19所述的候选UE，其特征在于，
    所述接收单元具体用于：
    在所述基站预先配置的资源池中接收源UE发送的第一消息；
    所述发送单元具体用于：
    所述候选UE在所述资源池中发送第二消息给所述源UE。
  21. 根据权利要求20所述的候选UE，其特征在于，所述资源池中包括第一资源和第二资源，其中，所述第一资源用于分配给所述源UE发送所述第一消息和接收所述第二消息，所述第二资源用于分配给所述n个候选UE发送所述第二消息和接收所述第一消息。
  22. 根据权利要求19-21中任一项所述的候选UE，其特征在于，所述状态信息包括以下信息中的至少一个或任意组合：
    当前的内存占用情况、当前电源的使用情况或剩余电量、中央处理器CPU的处理能力、与所述基站之间的链路状态、或干扰情况。
  23. 根据权利要求19-22中任一项所述的候选UE，其特征在于，所述第一消息中包含所述n个候选UE需要反馈信息的指示。
  24. 根据权利要求19-23中任一项所述的候选UE，其特征在于，所述第一消息中包含所述n个候选UE的状态信息需要满足的预设门限。
  25. 一种源用户设备UE，其特征在于，所述源UE包括：处理器、第一接口电路、第二接口电路、存储器和总线；所述处理器、所述第一接口电路、所述第二接口电路和所述存储器通过所述总线连接并完成相互间的通信；
    所述第一接口电路，用于向n个候选UE发送第一消息，所述第一消息用于指示所述源UE有数据需要传输给基站，其中，所述源UE为所述基站网络覆盖范围外的UE，所述n个候选UE为所述基站网络覆盖范围内的UE，n为不小于2的整数；
    所述第二接口电路，用于接收来自所述n个候选UE的n个第二消息，其中，所述n个候选UE中的每个候选UE向所述源UE发送一个第二消息，所述第二消息包括所述每个候选UE的用户标识和/或所述每个候选UE的状态信息；
    所述处理器，用于根据所述每个候选UE的用户标识和/或所述每个候选UE的状态信息，从所述n个候选UE中确定中继UE，所述中继UE为将所述数据传输给所述基站的UE；
    所述第一接口电路，还用于通过所述中继UE将所述数据传输给所述基站。
  26. 根据权利要求25所述的源UE，其特征在于，
    所述第一接口电路具体用于：
    在所述基站预先配置的资源池中向n个候选UE发送第一消息；
    所述第二接口电路具体用于：
    在所述资源池中接收来自所述n个候选UE的n个第二消息。
  27. 根据权利要求26所述的源UE，其特征在于，所述资源池包括第 一资源和第二资源，其中，所述第一资源用于分配给所述源UE发送所述第一消息和接收所述第二消息，所述第二资源用于分配给所述n个候选UE发送所述第二消息和接收所述第一消息。
  28. 根据权利要求25-27中任一项所述的源UE，其特征在于，所述状态信息包括以下信息中的至少一个或任意组合：
    当前的内存占用情况、当前电源的使用情况或剩余电量、中央处理器CPU的处理能力、与所述基站之间的链路状态、或干扰情况。
  29. 根据权利要求25-28中任一项所述的源UE，其特征在于，所述第一消息中包含所述n个候选UE需要反馈信息的指示。
  30. 根据权利要求25-29中任一项所述的源UE，其特征在于，所述第一消息中包含所述n个候选UE的状态信息需要满足的预设门限。
  31. 一种候选用户设备UE，其特征在于，所述候选UE包括：第一接口电路、第二接口电路、存储器和总线；所述第一接口电路、所述第二接口电路和所述存储器通过所述总线连接并完成相互间的通信；
    所述第一接口电路，用于接收源UE发送的第一消息，所述第一消息用于指示所述源UE有数据需要传输给基站，其中，所述源UE为所述基站网络覆盖范围外的UE，所述候选UE为所述基站网络覆盖范围内n个候选UE中的一个UE，n为不小于2的整数；
    所述第二接口电路，用于发送第二消息给所述源UE，所述第二消息包括所述候选UE的用户标识以和/或所述候选UE的状态信息；
    所述第一接口电路，还用于当所述候选UE被所述源UE根据所述候选UE的用户标识和/或所述候选UE的状态信息确定为中继UE时，接收所述源UE发送的所述数据，其中所述中继UE为将所述数据传输给所述基站的UE；
    所述第二接口电路，还用于将所述数据传输给所述基站。
  32. 根据权利要求31所述的候选UE，其特征在于，
    所述第一接口电路具体用于：
    在所述基站预先配置的资源池中接收源UE发送的第一消息；
    所述第二接口电路具体用于：
    所述候选UE在所述资源池中发送第二消息给所述源UE。
  33. 根据权利要求32所述的候选UE，其特征在于，所述资源池中包括第一资源和第二资源，其中，所述第一资源用于分配给所述源UE发送所述第一消息和接收所述第二消息，所述第二资源用于分配给所述n个候选UE发送所述第二消息和接收所述第一消息。
  34. 根据权利要求31-33中任一项所述的候选UE，其特征在于，所述状态信息包括以下信息中的至少一个或任意组合：
    当前的内存占用情况、当前电源的使用情况或剩余电量、中央处理器CPU的处理能力、与所述基站之间的链路状态、或干扰情况。
  35. 根据权利要求31-34中任一项所述的候选UE，其特征在于，所述第一消息中包含所述n个候选UE需要反馈信息的指示。
  36. 根据权利要求31-35中任一项所述的候选UE，其特征在于，所述第一消息中包含所述n个候选UE的状态信息需要满足的预设门限。
  37. 一种设备到设备D2D的数据传输系统，其特征在于，所述系统包括：基站、如权利要求13-18任一项所述的源用户设备UE以及至少两个如权利要求19-24任一项所述的候选UE；或者，
    包括：基站、如权利要求25-30任一项所述的源UE以及至少两个如权利要求31-36任一项所述的候选UE。
PCT/CN2015/089439 2015-09-11 2015-09-11 一种d2d的数据传输方法、设备及系统 WO2017041293A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US15/758,613 US10609743B2 (en) 2015-09-11 2015-09-11 D2D data transmission method and system, and device
CN201580081487.3A CN107836125A (zh) 2015-09-11 2015-09-11 一种d2d的数据传输方法、设备及系统
EP15903399.2A EP3322221B1 (en) 2015-09-11 2015-09-11 D2d data transmission method, device and system
PCT/CN2015/089439 WO2017041293A1 (zh) 2015-09-11 2015-09-11 一种d2d的数据传输方法、设备及系统

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/089439 WO2017041293A1 (zh) 2015-09-11 2015-09-11 一种d2d的数据传输方法、设备及系统

Publications (1)

Publication Number Publication Date
WO2017041293A1 true WO2017041293A1 (zh) 2017-03-16

Family

ID=58240511

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/089439 WO2017041293A1 (zh) 2015-09-11 2015-09-11 一种d2d的数据传输方法、设备及系统

Country Status (4)

Country Link
US (1) US10609743B2 (zh)
EP (1) EP3322221B1 (zh)
CN (1) CN107836125A (zh)
WO (1) WO2017041293A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10667314B2 (en) * 2017-03-30 2020-05-26 Lg Electronics Inc. Method and apparatus for transmitting and receiving a signal in a wireless communication system supporting a relay UE
CN111491287A (zh) * 2019-01-25 2020-08-04 电信科学技术研究院有限公司 一种调度终端确定方法、终端和网络侧设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120163252A1 (en) * 2010-12-27 2012-06-28 Electronics And Telecommunications Research Institute Method for harq and link adaptation of device to device link in direct communication between user equipments and relaying by user equipment
CN103607750A (zh) * 2013-11-25 2014-02-26 南京邮电大学 下一代蜂窝系统中基于终端直通通信的中继选择方法
CN104105155A (zh) * 2013-04-01 2014-10-15 中兴通讯股份有限公司 接收设备发现信息、发送设备发现信息的方法和用户设备

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006043902A1 (en) * 2004-10-21 2006-04-27 Matsushita Electric Industrial Co., Ltd. Method and system for identifying a relay mobile station in a wireless communication network
US8826348B2 (en) * 2006-12-04 2014-09-02 Samsung Electronics Co., Ltd. System and method for wireless communication of uncompressed video having a relay device for power saving
US7995507B2 (en) * 2006-12-04 2011-08-09 Samsung Electronics Co., Ltd. System and method for wireless communication of uncompressed video having power saving capability
US20130294331A1 (en) * 2012-05-03 2013-11-07 Mediatek Singapore Pte. Ltd. Method for Distributed Relay Discovery and Data Forwarding
KR101924838B1 (ko) 2012-08-10 2018-12-05 삼성전자주식회사 무선 통신 네트워크에서 2 홉 링크 전송을 위한 방법 및 장치
US9072000B2 (en) 2012-10-19 2015-06-30 Qualcomm Incorporated Power efficient relay discovery protocol
EP2790456B1 (en) * 2013-04-10 2015-10-21 Fujitsu Limited D2D communication in wireless networks
US9713072B2 (en) * 2013-07-29 2017-07-18 Htc Corporation Method of relay discovery and communication in a wireless communications system
US9445352B2 (en) * 2013-07-30 2016-09-13 Qualcomm Incorporated Power efficient discovery of LTE-direct relay for out-of-coverage devices
US9532361B2 (en) * 2013-08-09 2016-12-27 Futurewei Technologies, Inc. System and method for resource allocation device-to-device for open discovery
US9906888B2 (en) * 2013-12-16 2018-02-27 Qualcomm Incorporated Hybrid relay scheme
WO2015119538A1 (en) * 2014-02-04 2015-08-13 Telefonaktiebolaget L M Ericsson (Publ) Methods, wireless device, base station and candidate relay station for supporting d2d communication over relay
KR20150094325A (ko) * 2014-02-11 2015-08-19 삼성전자주식회사 UE-relay 동작에 있어 power saving을 위한 통신 방법
US10660146B2 (en) * 2014-03-21 2020-05-19 Samsung Electronics Co., Ltd. Methods and apparatus for device to device synchronization priority
CN103974288B (zh) 2014-05-23 2017-06-06 电子科技大学 蜂窝网中d2d资源分配方法
CN104540236B (zh) * 2015-01-30 2017-04-05 深圳酷派技术有限公司 用于终端直连通信的资源配置方法、系统、终端和基站
US10057352B2 (en) * 2015-03-13 2018-08-21 Qualcomm Incorporated Internet of everything device relay discovery and selection
US10530461B2 (en) 2015-03-25 2020-01-07 Qualcomm Incorporated Relay discovery and association messages
KR20170129917A (ko) 2015-04-03 2017-11-27 후아웨이 테크놀러지 컴퍼니 리미티드 데이터 송신 방법, 사용자 장비, 및 기지국
CN104703224B (zh) 2015-04-09 2018-05-15 宇龙计算机通信科技(深圳)有限公司 用于d2d通信的资源配置方法、装置和终端
US10582521B2 (en) * 2015-08-21 2020-03-03 Nokia Technologies Oy Apparatus, method and computer program product for medium access control in a wireless sensor network

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120163252A1 (en) * 2010-12-27 2012-06-28 Electronics And Telecommunications Research Institute Method for harq and link adaptation of device to device link in direct communication between user equipments and relaying by user equipment
CN104105155A (zh) * 2013-04-01 2014-10-15 中兴通讯股份有限公司 接收设备发现信息、发送设备发现信息的方法和用户设备
CN103607750A (zh) * 2013-11-25 2014-02-26 南京邮电大学 下一代蜂窝系统中基于终端直通通信的中继选择方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
GU, WEN;: "A Study of Relay Selection Algorithms Based on D2D Communication", MASTER'S DISSERTATION OF NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS, 15 June 2013 (2013-06-15), XP009504342, ISSN: 1674-0246 *
See also references of EP3322221A4 *

Also Published As

Publication number Publication date
US20180249520A1 (en) 2018-08-30
EP3322221A1 (en) 2018-05-16
US10609743B2 (en) 2020-03-31
CN107836125A (zh) 2018-03-23
EP3322221B1 (en) 2021-04-07
EP3322221A4 (en) 2018-08-15

Similar Documents

Publication Publication Date Title
US9432818B2 (en) Controlling communication devices
US10863513B2 (en) Method for reconfiguring data radio bearer and user equipment
US10433348B2 (en) Method for reconfiguring data radio bearer and user equipment
CN111713166B (zh) 随机接入方法及装置
WO2020143692A1 (zh) 通信方法和通信装置
WO2017049595A1 (zh) 边链路信息传输装置、方法以及通信系统
US10057937B2 (en) Communications via multiple access points
WO2016161623A1 (zh) 发现信号的传输方法、装置以及通信系统
WO2017024909A1 (zh) 一种进行数据传输的方法和设备
CN115065988B (zh) 中继传输的方法、中继终端和远端终端
US12075454B2 (en) Methods and devices for operating with dual connectivity
JP2016503999A (ja) Ｄ２ｄ通信の論理チャネルのハンドリング方法、ユーザ装置及び基地局
WO2021197029A1 (zh) 一种先听后说lbt失败指示方法及装置
US20190320411A1 (en) Managing paging of a wireless device
WO2022056676A1 (zh) 业务识别方法、终端设备和网络设备
WO2017041293A1 (zh) 一种d2d的数据传输方法、设备及系统
KR102014758B1 (ko) 탐색 정보 송신 방법, 디바이스, 및 통신 시스템
US9763102B2 (en) Resources in a communication system
CN114731544A (zh) 一种基于网络切片的数据传输方法、装置和系统
JP7392844B2 (ja) 車両通信サービスの通信方法、装置及び通信システム
US12063562B2 (en) Communication method and apparatus for releasing a packet data convergence protocol entity of a data radio bearer
WO2022147673A1 (zh) 信令发送方法、终端设备的上下文迁移方法和网络设备
CN111132226B (zh) 将服务质量流映射到无线电承载
WO2022061838A1 (zh) 启用反向映射机制方法、终端设备和网络设备
WO2024164145A1 (zh) 数据接收和发送装置以及方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15903399

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 15758613

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE