WO2017219244A1 - 一种通信方法及设备 - Google Patents

一种通信方法及设备 Download PDF

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Publication number
WO2017219244A1
WO2017219244A1 PCT/CN2016/086582 CN2016086582W WO2017219244A1 WO 2017219244 A1 WO2017219244 A1 WO 2017219244A1 CN 2016086582 W CN2016086582 W CN 2016086582W WO 2017219244 A1 WO2017219244 A1 WO 2017219244A1
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WO
WIPO (PCT)
Prior art keywords
user equipment
network device
message
information
connection
Prior art date
Application number
PCT/CN2016/086582
Other languages
English (en)
French (fr)
Inventor
张向东
冯淑兰
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 JP2018566345A priority Critical patent/JP2019519163A/ja
Priority to CN201680086768.2A priority patent/CN109314564B/zh
Priority to EP16905786.6A priority patent/EP3461029A4/en
Priority to PCT/CN2016/086582 priority patent/WO2017219244A1/zh
Publication of WO2017219244A1 publication Critical patent/WO2017219244A1/zh
Priority to US16/228,219 priority patent/US20190124563A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/32—Hierarchical cell structures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/304—Reselection being triggered by specific parameters by measured or perceived connection quality data due to measured or perceived resources with higher communication quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
    • H04B7/15542—Selecting at relay station its transmit and receive resources
    • 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

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a communication method and device.
  • the user equipment needs to be connected to a macro eNodeB (MeNB) to provide services for the user equipment, and also needs to link a small base station (Small eNB, SeNB) for Auxiliary macro base stations are used to provide services for user equipment. Therefore, if it is necessary to use the existing dual-connection communication technology to improve the service experience of the user equipment, such as increasing the available data rate, an additional small base station must be deployed. This will greatly increase the deployment cost of operators and reduce their deployment power. Otherwise, the dual connectivity technology has no implementation basis and cannot be used to improve the service experience of the user equipment.
  • MeNB macro eNodeB
  • SeNB small base station
  • the embodiment of the invention provides a communication method and device.
  • the embodiment of the present invention can be implemented, and it is more reasonable to establish a connection for the communication device to provide a high communication rate, thereby reducing the cost of network deployment.
  • an embodiment of the present invention provides a communication method.
  • the method includes: the first device determines first information, where the first information includes link state information of the first device and/or link requirement information of the first device, where the first device is the first user device; the first device Sending a first message to the second device, where the first message carries the first information, where the first message is used to indicate that the second device establishes a connection for the first device according to the first message.
  • the second device may include any one or two of the second user equipment and the first network device.
  • the link state information of the first device may be used to indicate Characteristic information of the state of the communication connection that the first device has established.
  • the link requirement information of the first device may be used to indicate a requirement of the first device for the second device for which the service is provided.
  • the user equipment can establish a connection according to the link state information and/or the link requirement information of the user equipment, and can establish a connection more reasonably, especially if one or more networks have been established for the user equipment.
  • the communication rate can be effectively improved, and the user equipment with the relay capability can be utilized as the second device, thereby reducing the cost of the network deployment.
  • the link requirement information of the first device may be determined according to the network rate requirement of the application currently running by the first device.
  • the connection established by the embodiment of the present invention can increase the rate more effectively and more specifically, and improve the user experience.
  • the sending, by the first device, the first message to the second user equipment includes: the first device sending the first message through the PC5 interface.
  • the first device sending the first message to the network device includes: the first device directly sending the first message to the network device, or the first device is connected to another user device other than the first device The network device sends the first message.
  • the first message is used to instruct the second device to establish a connection for the first device according to the first message.
  • the first message may be used to indicate that the connection that the second device establishes for the first device according to the first message includes: a connection between the second user device and the first device, and a connection between the second user device and the first network device; or When the second user equipment has its connection with the first network device, the first message is used to indicate that the second device establishes a link for the first device according to the first message, and the second user device is connected to the first device; or When the first device has a connection with the first user device, the first message is used to indicate that the second device establishes a connection for the first device according to the first message, and the second user device is connected to the first network device; Or the first message is used to indicate that the connection established by the second device for the first device according to the first message includes the connection of the second user equipment with the first device.
  • the embodiment of the present invention can implement the connection between the first device and the network device by using
  • the first device has a connection with the second network device
  • the method further includes: the first device determines information of the second user equipment and information of the first network device; the first device sends the information of the second user equipment and the information of the first network device to the second network device, so that the second network
  • the device indicates that the first network device allocates resources for the second user device to communicate with the first device, or the second network device allocates information based on the information of the first network device and/or the second user device.
  • the first device is used for resources for the second user equipment to communicate with the first device.
  • the embodiments of the present invention can implement the resources allocated to the user equipment by the network device, so that the configuration of the resources is more reasonable, and the possibility of conflict is reduced.
  • the second network device interacts with the first network device to allocate resources of the second network device to the first device and resources allocated by the first network device to the second user device.
  • the embodiments of the present invention can implement the resources allocated to the user equipment by the network device, so that the configuration of the resources is more reasonable, and the possibility of conflict is reduced.
  • the method before the first device sends the first message to the second device, the method further includes: the first device receiving the second message sent by the second device, where the second message carries the second information, the second information The link state and/or link requirements of the user equipment supported by the second device, or the link state and/or link requirements of the unsupported user equipment.
  • the first device sends the first message to the second device, where the first device sends the first message to the second device when the second device determines that the second device supports providing the service for the first device according to the second message. Message.
  • an embodiment of the present invention provides a communication method.
  • the second device includes a first message sent by the first device, where the first message carries first information, where the first information includes link state information and/or link requirement information of the first device, the first message And configured to instruct the second user equipment to establish a connection for the first device according to the first message.
  • the second device determines, according to the first information, that when the capability of the second device meets the requirement of the first device, establishing a connection provides a service for the first device.
  • the second device may include any one or two of the second user equipment and the first network device.
  • the link state information of the first device may be used to indicate a feature of the state of the communication connection that the first device has established. information.
  • the link requirement information of the first device may be used to indicate that the first device provides services for the first device. The requirements of the second device.
  • the second device may determine, according to the first information, the degree of demand of the first device for the established link.
  • the second device when the second device provides a service for the first device, the second device may provide a connection for the first device with the highest degree of demand for the newly established link, or may be configured according to the first device.
  • the degree of demand of the road disconnects the connection corresponding to a link that has been built but is not in demand, and provides a connection for establishing the connection of the first device with a high degree of demand for the new link, so as to determine more resources for the new link.
  • the second user equipment receives the second message sent by the first network device, where the second message carries the second information, where the second information includes a chain of user equipment supported by the first network device. Road state and/or link requirements, or link state and/or link requirements of unsupported user equipment; when the first network device supports providing services for the first device, and the capabilities of the second user equipment When the requirements of the first device are met, the second user device establishes a connection to provide services for the first device.
  • the method further includes: the second user equipment sends a request message to the first network device, where the request message is used to request a link state and/or a link requirement of the user equipment supported by the first network device, or Link state and/or link requirements for unsupported user equipment.
  • the aforementioned request message carries the first information.
  • the establishing, by the second device, the connection according to the first message comprises: establishing, by the first network device, the connection of the second user equipment with the first device and the second user equipment and the first a connection of the network device; or, when the second user device has a connection with the first network device, the first network device establishes a connection between the second user device and the first device for the first device according to the first message; or When the first device has a connection with the second user device, the first network device establishes a connection between the second user device and the first network device for the first device according to the first message; or the first network device is configured according to the first message.
  • a device establishes a connection between the second user equipment and the first device.
  • the first device has a connection with the second network device
  • the method further includes: the first network device receiving the indication message sent by the second network device, where the indication message is used to indicate that the first network device is allocated to the first
  • the second user equipment is used by the second user equipment to communicate with the first device; the first network device is allocated to the second user equipment based on the indication message for the second user equipment to communicate with the first device.
  • the first device has a connection with the second network device, and the method further includes: the first network device sends the resource information that is allocated to the second user device to the second network device; The network device allocates resources to the first device based on the resource information allocated by the first network device to the second user device.
  • an embodiment of the present invention provides a communication method.
  • the first device includes a third message sent by the at least one second device, where the third message carries the second information, where the second information includes indication information of the user equipment supported by the second device;
  • the information includes link state and/or link requirements of the supported user equipment, or link state and/or link requirements of the unsupported user equipment;
  • the first device selects the at least one according to the second information a first device, wherein the first device sends a connection establishment request message to the selected second device, where the connection establishment request message is used to indicate that the selected second device establishes a connection for the first device Serving the first device.
  • the user equipment can select the second device that establishes the connection according to the support of the link state information and/or the link requirement information of the second device, and the connection can be established more reasonably, especially for the user equipment.
  • the communication rate can be effectively increased, and the user equipment with the relay capability can be used as the second device, thereby reducing the cost of network deployment.
  • the first device has a connection with the second network device
  • the method further includes: the first device determining information of the selected second user device and/or information of the selected first network device; Sending, by the device, the information of the selected second user equipment and/or the information of the selected first network device to the second network device, so that the second network device indicates that the first network device is allocated to the second user equipment for a resource in which the second user equipment communicates with the first device, or a second network device base And assigning, by the selected information of the first network device and/or the information of the selected second user device, the resource used by the first device to communicate with the first device by the second user device.
  • an embodiment of the present invention provides a communication method.
  • the second device sends a third message to the first device, where the third message carries the second information, where the second information includes the indication information of the user equipment supported by the second device, and the indication information includes the link status of the supported user equipment. And a link requirement, or a link state and/or a link requirement of the user equipment that is not supported; the second device receives a connection establishment request message sent by the first device according to the third message, and the connection establishment request message is used to indicate, The second device establishes a connection for the first device; the second device establishes a connection according to the connection establishment request message to provide a service for the first device.
  • the method further includes: receiving, by the second user equipment, a fourth message sent by the first network device, where the fourth message carries the user that the first network device supports the specific link state and/or the specific link requirement. Instructions for the service provided by the device.
  • the method further includes: the second user equipment sends a request message to the first network device, where the request message is used to request whether the first network device supports the user equipment for a specific link state and/or a specific link requirement. Provide instructions for the service.
  • the establishing, by the first network device, the connection according to the connection establishment request message comprises: the first network device establishing, by the first network device, the connection of the second user equipment with the first device and the second user equipment according to the connection establishment request message Connecting with the first network device; or, when the second user device has its connection with the first network device, the first network device establishes a connection between the second user device and the first device for the first device according to the connection establishment request message Or, when the first device has a connection with the second user device, the first network device establishes a connection between the second user device and the first network device for the first device according to the connection establishment request message; or, the first network device is configured according to The connection establishment request message establishes a connection between the second user equipment and the first device for the first device.
  • the first device has a connection with the second network device
  • the method further includes: the first network device receiving the indication message sent by the second network device, where the indication message is used to indicate that the first network device is allocated to the first
  • the second user equipment is used by the second user equipment to communicate with the first device a resource; a resource allocated by the first network device to the second user equipment for the second user equipment to communicate with the first device based on the indication message.
  • the first device has a connection with the second network device, and the method further includes: the first network device sends the resource information that is allocated to the second user device to the second network device; The network device allocates resources to the first device based on the resource information allocated by the second network device to the second user device.
  • an embodiment of the present invention provides a communication method.
  • the first device has a link with the second network device, and the second user device has a link with the first network device
  • the method further includes: the second network device receiving the information of the second user device sent by the first device, and/or The second network device sends an indication message to the first network device, where the indication message is used to indicate that the first network device is allocated to the second user equipment for the second user equipment to communicate with the first device.
  • an embodiment of the present invention provides a multi-link communication method.
  • the first device has a link with the second network device, and the second user device has a link with the first network device.
  • the method includes: receiving, by the second network device, the first network device sent by the first network device to be allocated to the second user Resource information of the device; the second network device allocates resources to the first device based on resource information allocated by the first network device to the second user device.
  • the link state information includes any one or more of the following: the number of communication links established by the first device; the quality of service of the established communication link of the first device; The type of communication link that a device has established.
  • the second device comprises one or more of the following: a second user equipment, a first network device.
  • the link requirement information includes any one or more of the following: a requirement of the first device for the network device that needs to be served; and the first device for which the device needs to be served.
  • the requirement of the second user equipment; the requirement of the first device for the cell where the second user equipment needs to be served; the first device between the network device and the network device for which the first device needs to be served Requirements for the quality of communication; the quality of communication between the first device and the second user device for which it is required to serve; the first device in the cell in which it is located with the second user device for which it is required to serve Communication quality requirements.
  • an embodiment of the present invention provides a communication apparatus. And a processing module, configured to determine first information, where the first information includes link state information of the first device and/or link requirement information of the first device, and the transceiver module is configured to send the first message to the second device, where The first message carries the first information, where the first message is used to instruct the second device to establish a connection for the first device according to the first message.
  • the first device has a connection with the second network device
  • the processing module is further configured to: determine information about the second user device and information of the first network device
  • the transceiver module is further configured to: use the second user
  • the information of the device and the information of the first network device are sent to the second network device, such that the second network device instructs the first network device to allocate resources to the second user device for the second user device to communicate with the first device, or The second network device allocates resources for the second user device to communicate with the first device based on the information of the first network device and/or the information of the second user device.
  • the transceiver module is further configured to receive a second message sent by the second device, where the second message carries the second information, where the second information includes the indication information of the user equipment supported by the second device, and the indication information The link state and/or link requirements of the supported user equipment, or the link state and/or link requirements of the unsupported user equipment.
  • the processing module is further configured to: when the first device determines, according to the second message, that the second device supports providing the first user device, the control transceiver module sends the first message to the second device.
  • an embodiment of the present invention provides a communication apparatus.
  • the method includes: a transceiver module, configured to receive a first message sent by the first device, where the first message carries the first information, where the first information includes link state information and/or link requirement information of the first device, where the first message is used Instructing the second user equipment to establish a connection for the first device according to the first message, and the processing module is configured to determine, according to the first information, that when the capability of the second user equipment meets the requirement of the first device, establishing a connection to provide the first device service.
  • the second device includes a second user equipment and a first network device
  • the transceiver module is further configured to receive a second message sent by the first network device, where the second message carries the second information, the second information Including the indication information of the user equipment supported by the first network device; the indication information includes a link state and/or a link requirement of the supported user equipment, or a link state and/or a link requirement of the unsupported user equipment;
  • the method is further configured to: when the first network device supports providing services for the first device, and the capability of the second user device meets the requirement of the first device, establishing a connection to provide a service for the first device.
  • the first device has a connection with the second network device, and when the second device is the first network device, the transceiver module is further configured to receive the indication message sent by the second network device, And the processing module is further configured to allocate, according to the indication message, the second user equipment to the second user equipment for the second user equipment and the first user equipment A resource that a device communicates with.
  • the first device has a connection with the second network device, and when the second device is the first network device, the transceiver module is further configured to: the first network device allocates the second network device to the second user device The resource information is sent to the second network device, so that the second network device allocates resources to the first device based on the resource information allocated by the first network device to the second user device.
  • an embodiment of the present invention provides a communication apparatus.
  • the method includes: a transceiver module, configured to receive a third message sent by the at least one second user equipment or the at least one first network device, where the third message carries the second information, where the second information includes the indication information of the user equipment supported by the second device.
  • the indication information includes a link state and/or a link requirement of the supported user equipment, or a link state and/or a link requirement of the unsupported user equipment; and a processing module, configured to select at least one second according to the second information
  • the transceiver module is further configured to send a connection establishment request message to the selected second device, where the connection establishment request message is used to indicate that the selected second device establishes a connection for the first device to provide a service for the first device.
  • an embodiment of the present invention provides a communication apparatus.
  • the method includes: a transceiver module, configured to send a third message to the first device, the third message carries the second information, and the second information includes the second device.
  • the second device includes the second user equipment and the first network device
  • the transceiver module is further configured to: receive, by the second user equipment, a fourth message sent by the first network device, where the fourth message carries the first network Indicates the user equipment supported by the device.
  • the second device includes the second user device and the first network device, and when the second device is the first network device, the transceiver module is further configured to send the third message to the second user device, where The third message carries the second information, and the second information includes indication information about whether the first network device supports the user equipment for the specific link state and/or the specific link requirement.
  • the transceiver module is further configured to receive the second user equipment.
  • the connection establishment request message is used to indicate that the first network device establishes a connection for the first device, and the processing module is further configured to establish a connection according to the connection establishment request.
  • an embodiment of the present invention provides a user equipment, where the user equipment has a function of implementing behavior of a first device in the foregoing method design.
  • the functions can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more modules corresponding to the functions described above. Modules can be software and/or hardware.
  • the structure of the first device includes a transceiver and a processor, and the receiver is configured to support transmission and reception of data between the first device and the second device.
  • an embodiment of the present invention provides a user equipment, where the user equipment has a function of implementing behavior of a second user equipment in the foregoing method design.
  • the functions can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more modules corresponding to the functions described above. Modules can be software and/or hardware.
  • the structure of the second user equipment includes a transceiver and a processor, The receiver is configured to support transmission and reception of data between the first device and the second device.
  • the embodiment of the present invention provides a network device, where the network device has a function of implementing behavior of the first network device in the foregoing method.
  • the functions can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the first network device includes a processor and a transceiver in the structure, and the processor is configured to support the first network device to perform a corresponding function in the above method.
  • the transceiver is configured to support communication between the first network device and the first user device, the second user device, and the second network device, and transmit and receive information or instructions involved in the foregoing method.
  • the first network device can also include a memory for coupling with the processor that retains program instructions and data necessary for the first network device.
  • an embodiment of the present invention provides a network device, where the network device has a function of implementing behavior of a second network device in the foregoing method.
  • the functions can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the second network device includes a processor and a transceiver configured to support the second network device to perform a corresponding function in the above method.
  • the transceiver is configured to support communication between the second network device and the first user device, the second user device, and the first network device, and send and receive information or instructions involved in the foregoing method.
  • the second network device can also include a memory for coupling with the processor that retains the necessary program instructions and data for the second network device.
  • an embodiment of the present invention provides a communication system, where the system includes the first device and the second device in the foregoing aspect.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use in the first device, including a program designed to perform the above aspects.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use in the second device, including a program designed to perform the above aspects.
  • link state information and/or link requirements according to user equipment can be implemented.
  • the information can be used to establish a connection for the user equipment, and the connection can be established more reasonably.
  • the communication rate can be effectively improved by using the embodiment of the present invention.
  • the user equipment with relay capability can be utilized as the second device, which reduces the cost of network deployment.
  • FIG. 1A is a schematic diagram of a scenario in which a user equipment accesses a network device
  • FIG. 1B is another example of a scenario in which a user equipment accesses a network device
  • FIG. 3 is a flowchart of a communication method according to an embodiment of a method according to the present invention.
  • FIG. 4 is a flowchart of another communication method provided by an embodiment of a method according to the present invention.
  • FIG. 5 is a flowchart of still another communication method according to an embodiment of a method according to the present invention.
  • FIG. 6 is a flowchart of still another communication method according to an embodiment of a method according to the present invention.
  • FIG. 7 is a schematic structural diagram of a first user equipment according to an embodiment of a method according to the present invention.
  • FIG. 8 is a schematic structural diagram of a second user equipment according to an embodiment of a method of the present invention.
  • FIG. 9 is a schematic structural diagram of a first network device according to an embodiment of a method according to the present invention.
  • FIG. 10 is a schematic structural diagram of a second network device according to an embodiment of a method of the present invention.
  • FIG. 11 is a schematic diagram of a virtual communication apparatus according to an embodiment of the present invention.
  • FIG. 12 is another virtual communication device according to an embodiment of the present invention.
  • FIG. 13 is still another virtual communication device according to an embodiment of the present invention.
  • FIG. 14 is still another virtual communication device according to an embodiment of the present invention.
  • the first user equipment may include various hands with wireless communication functions. Holding devices, in-vehicle devices, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of User Equipment (UE), mobile stations (MS), terminals, Terminal equipment and so on.
  • UE User Equipment
  • MS mobile stations
  • terminals Terminal equipment and so on.
  • the above mentioned devices are collectively referred to as a first device, a first user device or a UE.
  • the second user equipment may include various handheld devices, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to the wireless modem having wireless communication capabilities and capable of providing relay services, as well as various forms of user equipment, mobile Stations, terminals, terminal equipment, etc.
  • a second user equipment or a Relay User Equipment (RUE).
  • RUE Relay User Equipment
  • the network device may include an access network device and a core network device, etc., wherein the core network device is connected to the user device through the access network device.
  • the access network device can be a device deployed in the radio access network to provide wireless communication functionality to the UE or RUE.
  • the apparatus may include various forms of macro base stations, small base stations, relay stations, access points, and the like.
  • the name of a device having a base station function may be different.
  • an evolved Node B evolved Node B: eNB or eNodeB
  • Node B In the 3G network, it is called Node B and so on.
  • the foregoing apparatus for providing a wireless communication function to a UE is collectively referred to as an access network device or an eNB.
  • the core network device may be a device that provides a user connection, management of the user, and completion of the bearer for the service, and serves as an interface for the bearer network to provide an interface to the external network.
  • the establishment of the user connection includes mobility management (MM), call management (CM), switching/routing, and recording notification (in combination with the connection of the intelligent network service to the intelligent network peripheral device).
  • User management includes user description, QoS (Quality of Service), user communication record (Accounting), dialogue with intelligent network platform to provide virtual home environment, security (the corresponding security measures provided by the authentication center include Security management of mobile services and security of access to external networks).
  • Bearer Access to include the external PSTN, external circuit data network and packet data network, Internet and Intranets, and mobile own SMS server, etc.
  • the basic services that the core network can provide include mobile office, e-commerce, communication, entertainment. Business, travel and location-based services, Telemetry simple messaging services (monitoring controls) and more.
  • MME Mobility Management Entity
  • SGW Serving GateWay
  • LTE Long Term Evolution
  • the above-mentioned devices that provide user connections, management of users, and bearers for services are provided as interfaces of the bearer network to the external network, and are collectively referred to as core network devices.
  • a device-to-device (D2D) communication is supported between the first user equipment and the second user equipment.
  • the first user equipment and the second user equipment both support Bluetooth function, and WIFI (Wireless Fidelity, wireless) Fidelity) function, or both support PC5 interface and so on.
  • WIFI Wireless Fidelity, wireless
  • the second user equipment and the network equipment may be collectively referred to as a second device in order to distinguish from the first device.
  • FIG. 1A and FIG. 1B illustrate various scenarios in which a user equipment accesses a network device.
  • FIG. 1A it includes: a macro base station 111, a small base station 121, a small base station 122, user equipments 131-135, and the like.
  • the small base station 121 and the small base station 122 are controlled by the macro base station 111; the user equipment 131 and the user equipment 132 are within the coverage of the macro base station 111; and the coverage of the user equipment 133 is at the small base station 121.
  • the user equipment 134 and the user equipment 135 are within the coverage of the small base station 122.
  • the scenario shown in Figure 1A may have the following connections:
  • the user equipment is directly linked to the macro base station.
  • the user equipment 131 and the user equipment 132 are directly connected to the macro base station 111.
  • the user equipment directly connected to the same macro base station serves as the RUE, and the user equipment is connected to the macro base station through the RUE.
  • the user equipment 131 functions as the RUE, and the user equipment 132 and the user equipment 134 are linked to the macro base station 111 through the user equipment 131.
  • the user equipment is connected to the macro base station through the small base station.
  • the user equipment 133 is connected to the macro base station 111 through the small base station 121
  • the user equipment 134 and the user equipment 135 are connected to the macro base station 111 through the small base station 122.
  • the user equipment under the same small base station serves as the RUE, and the user equipment is connected to the macro base station through the RUE.
  • the user equipment 135 functions as the RUE, and the user equipment 134 is connected to the small base station 122 and the macro base station 111 through the user equipment 135.
  • the user equipments of the different small base stations or the coverage of the small base station are used as the RUE, and the user equipment is connected to the macro base station by using the RUE.
  • the user equipment 133 functions as the RUE, and the user equipment 134 passes the user equipment 133 and the small base station 121 and the macro base station 111.
  • the user equipment 132 acts as an RUE, and the user equipment 134 is connected to the macro base station 111 via the user equipment 132.
  • the macro base station 112 the macro base station 113, the small base station 123, the small base station 124, the user equipments 136-139, and the user equipment 140 are included.
  • the small base station 123 is controlled by the macro base station 112
  • the small base station 124 is controlled by the macro base station 113
  • the user equipment 137 and the user equipment 139 are within the coverage of the macro base station 113
  • the user equipment 136 is in the macro base.
  • Within the coverage of station 112; user equipment 138 is within the coverage of small base station 123; user equipment 140 is within the coverage of small base station 124.
  • the user equipment directly connected to the different macro base stations is used as the RUE, and the user equipment is connected to the macro base station through the RUE.
  • the user equipment 136 is directly connected to the macro base station 112
  • the user equipment 136 is used as the RUE
  • the user equipment 137 is used by the user equipment 136 and the user.
  • the device 112 is connected; or, the user equipment 139 is connected to the macro base station 113, the user equipment 139 is the RUE, and the user equipment 138 is connected to the macro base station 113 via the user equipment 139.
  • the small base station is different, and the macro base station connected to the small base station also has different user equipments as the RUE, and the user equipment is connected to the macro base station through the RUE.
  • the user equipment 140 is connected to the macro base station 113 through the small base station 124, and the user equipment 140 is used as the RUE.
  • the user equipment 138 is connected to the small base station 124 and the macro base station 113 through the user equipment 140.
  • the user equipment is directly connected to the user equipment.
  • user device 136 is coupled to user device 137.
  • the user equipment may access the core network device by using any one or more of the foregoing connections. Further, you can also access the Internet.
  • one macro base station can manage several small base stations, one small base station can access several user equipments, and the coverage areas of small base stations and small base stations, macro base stations and small base stations, and macro base stations and macro base stations can be overlapped.
  • a user equipment can discover a number of cells, such as one or more base stations (a macro base station, a small base station, etc.), and a plurality of RUEs, which may belong to the same cell or belong to different cells. .
  • the macro base station or the small base station shown in FIG. 1A and FIG. 1B may also be other access network devices, and the access forms are similar, and details are not described herein again.
  • connection manners shown in FIG. 1A and FIG. 1B are also various, and are not described again for brevity.
  • the technology described in the present invention can be applied to a Long Term Evolution (LTE) system, or other wireless communication systems using various radio access technologies, for example, using code division multiple access, frequency division multiple access, time division multiple access, A system of orthogonal frequency division multiple access, single carrier frequency division multiple access and other access technologies.
  • LTE Long Term Evolution
  • it can also be applied to the subsequent evolution system using the LTE system, such as the fifth generation 5G system and the like.
  • the LTE system is taken as an example here.
  • the Evolved Universal Terrestrial Radio Access Network Evolved Universal Terrestrial Radio Access Network (E-UTRAN) is used as the radio access network
  • EPC Evolved Packet Core
  • Evolved Universal Terrestrial Radio Access Network Evolved Universal Terrestrial Radio Access Network
  • MME Evolved Universal Terrestrial Radio Access Network
  • PGW Packet Data Network
  • SGW Serving General Packet Radio Service Support Node
  • DHCP Dynamic Host Configuration Protocol
  • E-UTRAN is used to implement all functions related to the evolution network wireless.
  • the MME is responsible for the mobility management of the control plane, including user context and mobility state management, and assigning Temporary Mobile Subscriber Identity (TMSI).
  • TMSI Temporary Mobile Subscriber Identity
  • the S-GW is a user plane anchor between 3GPP access networks, terminating the interface of the E-TURAN.
  • the P-GW is a user plane anchor between the 3GPP access network and the non-3GPP access network, and an interface of the PDN.
  • the HSS is used to store user subscription information.
  • the MME, S-GW, P-GW, and HSS are usually used as core network devices.
  • the user equipment accesses the E-UTRAN through the wireless air interface, it first attaches to the MME, and the MME obtains the subscription data and the authentication information of the user equipment (User Equipment, UE) from the HSS, and initiates a process of authenticating the UE.
  • the MME completes the authentication process, the user equipment or the MME initiates a process of establishing a bearer for transmitting user data.
  • the MME notifies the S-GW to establish a bearer for the user, and carries the address of the P-GW and the address information of the E-UTRAN network device where the user is located in the notification message.
  • the S-GW establishes a bearer for transmitting user data from the E-UTRAN to the P-GW for the user.
  • the P-GW forwards the downlink data from the external PDN to the UE through the bearer, and forwards the uplink data from the UE to the corresponding PDN.
  • the UE can access the MME through UTRAN or GERAN and SGSN, and can be built by UTRAN/GERAN and SGSN.
  • the General Packet Radio Service Tunneling Protocol (GTP) is connected between the S-GW and the S-GW.
  • the S-GW converts the GTP tunnel into a corresponding bearer connected to the P-GW for transmitting user data.
  • the UTRAN can also establish a GTP tunnel that directly connects to the S-GW.
  • the MME becomes a network device that only processes control plane signaling, and the S-GW and the P-GW are mainly responsible for forwarding user plane data.
  • the S-GW and the P-GW can be combined into one network device, generally referred to as a gateway.
  • interface signaling includes: bearer interface signaling, policy control and charging (PCC) interface signaling, charging interface signaling, lawful interception interface signaling, and external PDN interface signaling (eg, DHCP, AAA, etc.) Processing function.
  • PCC policy control and charging
  • charging interface signaling charging interface signaling
  • lawful interception interface signaling e.g., DHCP, AAA, etc.
  • external PDN interface signaling e.g, DHCP, AAA, etc.
  • the first user equipment may send status information of the established link, or link requirement information for the newly established connection, or a combination of the first two to the second device, so that the second device determines whether the connection can be established. Specifically, the first device determines the first information, where the first information includes link state information of the first device and/or link requirement information of the first device, where the first user device sends the first message to the second device, where The first message carries the first information, where the first message is used to indicate that the second device establishes a connection for the first device according to the first message.
  • the second device After receiving the first information sent by the first user equipment, the second device determines, according to the first information, that when the capability of the second device meets the requirement of the first device, establishing a connection with the first device, or acting as a relay Establish a first device to establish a connection with other devices or the Internet.
  • the second device may send its support for the link state and/or the link requirement to the first device, and the first device selects an optimal second device to establish a connection. Specifically, the second device sends a third message to the first device, where the third message carries the second information, where the second information includes indication information of the user equipment supported by the second device; the indication information includes the supported user. Link state and/or link requirements of the device, or link state and/or link of the unsupported user equipment begging. The first device receives a third message sent by the at least one second device, where the third message carries the second information.
  • the first device selects one of the at least one second device according to the second information, and sends a connection establishment request message to the selected second device, where the connection establishment request message is used to indicate that the selected second device establishes a connection for the first device. Serving the first device.
  • the second device receives the connection establishment request message sent by the first device; establishes a connection with the first device according to the connection establishment request message, or establishes a connection between the first device and another device or the Internet as a relay.
  • FIG. 3 is a flowchart of a communication method according to an embodiment of a method according to the present invention.
  • the UE may send its own needs and/or status to the RUE or the network device.
  • the UE determines the first information.
  • the first information may include link state information of the UE and/or link requirement information of the UE.
  • the UE has one or more connections, and any one of the one or more connections may be any of the connections described above in FIG. 1A and FIG. 1B.
  • the UE may determine the link status of the connection formed by the above connection.
  • the link state information of the UE may be used to indicate feature information of a state of the communication connection that the UE has established, including but not limited to any one or more of the following:
  • the number of communication links that the UE has established can be increased by one for each link of the UE with the network device, and the communication link exists for each connection of the UE to the network device through the relay device.
  • the number of data can also be increased by 1;
  • the quality of the communication link that the UE has established for example, the QoS (Quality of Service) of the communication link existing by the UE, the signal drying ratio, and the like;
  • the type of communication link that the UE has established for example, the first user equipment is directly connected to the network device, the first user equipment is connected to the network device through the relay device, and the like.
  • the UE When the UE performs communication, that is, when the UE communicates with the network device or the relay device, or When the UE communicates with the RUE, there is a need to increase the rate of data transmission.
  • a user device such as a mobile phone or a tablet notebook to watch video online
  • the data traffic generated by watching the video online is also Increasingly large, when the data transmission rate of the existing link is insufficient, a situation may occur; or when a video call is made by using a user device such as a mobile phone or a tablet notebook, a large amount of traffic is also required, and a video call is also required.
  • the requirements for real-time traffic are high, and when the data transmission rate of the existing link is insufficient, a delay or a jam may occur; and so on.
  • the UE may monitor the foregoing situation of generating a demand for increasing the rate of data transmission.
  • the UE may increase the rate of data transmission by establishing one or more connections, any one of the one or more connections. It may be any of the connections described above in connection with Figures 1A and 1B.
  • the UE may choose to establish a connection with the network device through the RUE.
  • the RUE may be in a different cell from the UE, or even connected to different access network devices, so that the UE can utilize the resources of the cell where the RUE is located, thereby improving the service quality more effectively.
  • the user equipment can determine the above link requirements.
  • the link requirement information of the UE may be used to indicate a requirement of the second device that the UE provides for the service, including but not limited to any one or more of the following:
  • the requirements of the UE for the network device that needs to provide services for example, the capacity requirement of the UE for the network device that needs to provide service, or the UE only needs a network device that is willing to provide service for it, or the like, or only one UE needs RUE does not need to be connected to a network device;
  • the requirements of the UE for the RUEs that need to provide services for it for example, the UE's requirements for the relay capability of the RUE, and the like;
  • the requirements of the UE for the cell where the RUE needs to be served for example, the UE only needs to provide services for the RUE with different cells, etc.;
  • the UE's requirements for the quality of communication between it and the RUEs for which it is required to serve for example, QoS quality, distance requirements, etc.;
  • the link requirement information of the first device may be determined according to the requirement of the network rate of the application currently running by the first device.
  • the video player can have playback modes such as standard definition (480P), high definition (720P), and ultra clear (1080P) when playing video, and correspondingly, different quality signals, when the video player plays the standard definition video.
  • the first device determines the link requirement
  • the second device may be required to provide services for the second device; when the video player plays the high definition, the second device in different cells may be required to provide the service; when the broadcast is ultra clear
  • a second device in a different cell may be required, and the communication quality between the second device and the first device also needs to meet certain requirements.
  • the process of the UE selecting the RUE as the relay device to establish a connection with the network device is as follows.
  • the UE sends a first message to the RUE and/or the network device.
  • the first message carries the first information, where the first message is used to indicate that the RUE and/or the network device establish a connection for the UE according to the first message.
  • the specific information that the first message is used to indicate that the RUE and/or the network device establishes the UE according to the first message may include:
  • the first message may be used to indicate that the RUE and/or the network device establishes a connection between the RUE and the UE and the connection between the RUE and the network device according to the first message.
  • the first message may be used to indicate that the RUE and/or the network device establishes a connection between the RUE and the UE for the UE according to the first message;
  • the first message may be used to indicate that the RUE and/or the network device establishes a connection between the RUE and the network device for the UE according to the first message;
  • the first message may be used to indicate that the RUE and/or the network device establishes a connection between the RUE and the UE for the UE according to the first message.
  • connection between the RUE and the UE may include any one of the foregoing D2D communication modes.
  • the connection needs to be established through the RUE-connected or RUE-resident network device, so the UE can send the connection establishment to the RUE-connected or RUE-resident network device.
  • Request eg, the first message
  • the UE may send a connection setup request (eg, a first message) to the RUE, the RUE establishing a RUE on the network device to which it is connected or its camping Connection to the UE.
  • the RUE determines, according to the first information, that when the capability of the RUE meets the requirement of the UE, establishing a connection provides a service for the UE.
  • the RUE determines, according to the first information, whether the RUE meets the requirements of the UE, or whether the network device corresponding to the RUE meets the requirements of the UE.
  • the RUE may determine, according to the first information, a degree of requirement of the UE for the newly created link, for example, the RUE receives the first information sent by multiple UEs, and may determine the priority order according to the number of established communication links of each UE, and the least number of priorities. The highest level; or, the priority order is determined according to the quality of the communication link established by each UE, and the worst quality priority is the highest; or, the priority order is determined according to the type of the communication link established by each UE, and the connection with the network device is determined. The more relay devices there are, the higher the priority; or, by any combination of the foregoing two or a combination of the three;
  • the RUE may determine, according to the first information, a degree of demand of the UE for the established link. For example, according to the number of communication links that each UE has established, the more the number of requirements is smaller; or, according to the quality of the communication link that each UE has established, the demand for the worse quality is smaller; or, according to each The type of communication link that the UE has established determines that the more the relay device is between the connection with the network device, the smaller the requirement; or, by any combination of the foregoing two or three;
  • the RUE When the RUE establishes a connection to provide services for the UE, the RUE can be the most demanded for the new link.
  • the UE establishes a connection providing service, and may also disconnect a connection corresponding to a link that has been built but has a low demand according to the degree of the UE's demand for the established link, and provide a connection for the UE with a high degree of demand for establishing a new link.
  • the RUE may also determine, based on the first information, whether it meets the requirements of the UE, in particular the requirements explicitly stated in the first information. For example, it is determined based on the link requirement information of the UE.
  • the RUE can be combined with the above information to determine whether it can provide services to the UE.
  • establishing a connection according to the first information may be as follows:
  • Step A11 The network device sends a second message to the RUE, where the second message carries the second information, where the second information includes the link state and/or link requirement of the supported user equipment of the first network device, or does not support Link state and/or link requirements of the user equipment.
  • the network device may actively send the link state and/or link requirement of the supported user equipment, or the link state and/or link requirement of the unsupported user equipment to the RUE, for example, by broadcasting system information, broadcasting
  • the frequency can be determined according to actual needs, and so on.
  • the link state of the user equipment supported by the network device, or the link state of the unsupported user equipment includes any one or more of the following:
  • the link requirements of the user equipment supported by the network device, or the link requirements of the unsupported user equipment include any one or more of the following:
  • the above information network device may be determined according to its actual situation, or may be predefined by the network device.
  • Step A12 The RUE receives the second information sent by the network device.
  • Step A13 The RUE determines whether the RUE can establish a first connection to provide a service for the UE according to the second information, the first information, and a specific link state and/or a specific link requirement that the UE can support.
  • the RUE may determine, according to the second information and the first information, whether the network device satisfies a condition for establishing a connection for the UE.
  • the RUE may determine whether the RUE satisfies the condition for establishing a connection for the UE according to the first information and the specific link state and/or the specific link demand that the UE can support.
  • Step A14 when the RUE satisfies the condition for establishing a connection, the RUE establishes a connection.
  • the connection may include a connection between the UE and the second device, and a connection between the RUE and the first network device.
  • the different step from the first method lies in the acquisition of the second information.
  • the RUE may first send a second information acquisition request to the network device, and after receiving the second information acquisition request sent by the RUE, the network device sends the second information to the RUE.
  • Step A21 After receiving the first information, the RUE sends a request message to the network device, where the request message carries the first information and the link state and/or link requirement of the user equipment that can be supported by the user equipment, or the unsupported user equipment. Link status and/or link requirements.
  • Step A22 The link state of the user equipment that the RUE can support according to the link state and/or link requirement of the user equipment that the user equipment can support, or the link state and/or link requirement of the user equipment that is not supported. And/or link requirements, or link state and/or chain of unsupported user equipment The path requirement, and the first information, determines whether the condition for establishing the first connection for the UE is met.
  • the network device may determine whether the network device is satisfied according to the link state and/or link requirement of the user equipment that can be supported by the user equipment, or the link state and/or link requirement of the unsupported user equipment, and the first information.
  • the condition for the UE to establish a connection may be determined whether the network device is satisfied according to the link state and/or link requirement of the user equipment that can be supported by the user equipment, or the link state and/or link requirement of the unsupported user equipment, and the first information. The condition for the UE to establish a connection.
  • the network device may determine whether the RUE satisfies establishing a connection for the UE according to the first information and the link state and/or link requirement of the user equipment that the RUE can support, or the link state and/or link requirement of the unsupported user equipment. conditions of.
  • step A23 when the condition for establishing a connection is satisfied, the network device establishes a connection.
  • the step different from the foregoing mode 3 is whether the RUE satisfies the determination of the condition for establishing a connection for the UE.
  • the RUE can judge by itself, and when it is satisfied, the first information and the judgment result are sent to the network device.
  • the network device determines whether the network device satisfies the condition for establishing a connection for the UE, and establishes a connection when satisfied.
  • the different steps from the foregoing mode 3 and mode 4 are in the establishment of the connection.
  • the network device determines that the RUE satisfies the condition for establishing a connection for the UE and the network device satisfies the condition for establishing a connection for the UE, the network device sends the result to the RUE, and the RUE initiates the establishment of the connection.
  • the network device sends the result to the RUE when it determines that the condition for establishing the first connection is established for the UE, and determines, by the RUE, that the RUE satisfies the condition for establishing a connection for the UE and initiates establishment of the connection.
  • S330B The network device establishes a connection for the UE according to the first message.
  • the network device After the network device receives the first message, according to the first information carried in the first message, one of the multiple RUEs of the accessed network device or the resident network device is selected, and the selected RUE is established.
  • the connection provides services for the UE, wherein the establishment of the connection here is primarily to establish a connection between the selected RUE and the UE.
  • the condition of selecting the RUE may be determined according to the distance between the UE and the RUE, whether the UE and the RUE are in the neighboring cell, and the relay capability of the RUE, etc., and the optimal RUE may be selected as the UE.
  • Provide services Here, the relay capability of the RUE, etc. Information can be obtained when the RUE is accessed.
  • the relay capability of the RUE may refer to the maximum traffic that the RUE can bear for the UE, or the maximum rate of data transmission that the RUE can provide as the relay device, and the like, which can reflect the data information of the RUE data transmission capability. .
  • the UE determines that the RUE is capable of providing the relay service for the RUE, and the RUE corresponding network device allows the RUE to provide the relay service for the UE, and the UE can establish a connection with the network device through the RUE, and share a part of the data transmission service through the link. Effectively increase the data transmission rate and reduce operating costs to improve the user experience.
  • the RUE and/or the network device may send the link state and/or link requirement supported by the UE to the UE, and the UE determines the connection that needs to be established with the RUE or the network device. Specific steps are as follows:
  • the RUE sends a third message to the UE.
  • the third message carries the second information, where the second information includes indication information about whether the RUE and/or the network device supports the user equipment for the specific link state and/or the specific link requirement.
  • S410B A third message sent by the network device to the UE.
  • the third message carries the second information, where the second information includes the link state and/or link requirement of the RUE and/or the user equipment supported by the network device, or the link state of the unsupported user equipment. / or link requirements.
  • the third message may also carry the communication capability of the network device.
  • the second information may carry information such as remaining resources or occupied resources of the network device, or usage of resources occupied by the RUE. In this way, it may be advantageous for the UE to determine whether to select the RUE or the network device to perform communication based on the information.
  • the link state and/or link requirement of the user equipment supported by the network device, or the link state and/or link requirement of the unsupported user equipment may also include, but is not limited to, whether the network device supports The UE of the neighboring cell of the RUE provides a service; whether the network device supports providing services for the UE corresponding to the network device other than the accessed network device; and the like.
  • the RUE is connected to the network device, and the network device allocates a cell to the RUE, and the RUE can broadcast the identifier of the cell to which the UE belongs.
  • the UE can determine whether it is in the same cell or the same network device according to the identity of the cell. In order for the UE to be able to select a more suitable RUE.
  • the second information may also carry a willingness to provide a relay service for the RUE. Specifically, the second information may carry its willingness to provide a relay service for the UE of the neighboring cell, and/or its willingness to provide a relay service for the UE connected to other network devices.
  • the UE receives a third message sent by at least one RUE or at least one network device.
  • the third message carries the second information, where the second information includes the link state and/or link requirement of the RUE and/or the user equipment supported by the network device, or the link state of the unsupported user equipment and/or Or link requirements.
  • the second information may include the following acquisition manners:
  • the second information may include two parts, where the first part is a link state and/or a link requirement of the user equipment supported by the RUE, or a link state and/or a link requirement of the unsupported user equipment; The link state and/or link requirements of the user equipment supported by the network device supported by the RUE, the RUE camping or the RUE presence, or the link state and/or link requirements of the unsupported user equipment.
  • the RUE may determine the link state and/or link requirement of the user equipment that it supports, or the link state and/or link requirement of the unsupported user equipment is also the first part of the second information; for the same reason, the network device may Determining the link state and/or link requirements of the user equipment that it supports, or the link state and/or link requirements of the unsupported user equipment is also the second part of the second information.
  • the network device sends the second part of the second information to the RUE; the RUE combines the first part of the second information to obtain the second information and sends the second information to the UE.
  • the RUE sends the first part of the second information to the network device when accessing the network device, and the network device combines the second part of the second information to obtain the second confidence, and sends the second information to the UE.
  • the RUE sends the first part of the second information to the UE, and carries the identifier of the network device that the second user accesses or camps on; the UE requests the second part of the second information from the network device; the network device uses the second information.
  • the second part is sent to the UE.
  • the network device sends the second part of the second information to the UE.
  • the RUE sends the first part of the second information to the UE, and carries the identifier of the network device that the second user accesses or camps on.
  • the identification of the network device determines a second portion of its corresponding second information.
  • the UE selects one of the at least one RUE and/or one of the at least one first network device according to the second information.
  • the UE may receive the second information sent by one or more RUEs or one or more network devices.
  • the UE may select an optimal RUE or a network device as a relay service according to the second information corresponding to each RUE or the network device. For example, the UE may select an RUE that is in the neighboring cell and has the strongest relay capability.
  • the signal quality of communication between each RUE and the UE may also be considered. For example, the priority level of selecting the RUE is: whether it is in the neighboring cell, whether the signal quality between the UE and the UE is the strongest, and whether the relay capability is the strongest.
  • the information is comprehensively scored, and the RUE is selected according to the comprehensive score, and further, different priorities may be used. Set the weights to get a comprehensive rating.
  • the UE sends a connection establishment request message to the selected RUE or the selected network device.
  • the connection establishment request message is used to indicate that the selected RUE or the selected network device establishes a connection for the UE, and the connection is a connection between the UE and the network device by using the RUE.
  • the selected RUE or the selected network device After receiving the connection establishment request message sent by the UE, the selected RUE or the selected network device establishes a connection between the UE and the network device through the RUE.
  • connection establishment request message sent by the UE may also carry its own link requirement and/or link status, so that the RUE or the network device Further judgment is made as to whether or not to support the UE.
  • the RUE or the network device may be according to the UE.
  • the RUE determines, according to the link state information of the UE and/or the link requirement information of the UE, that the connection to be established is for the UE to acquire the network service.
  • the impact is large (for example, the QoS quality of other connections existing in the UE is relatively poor); at this time, the RUE has a connection of another UE, and the RUE provides a relay service for other UEs, and the RUE passes the link state information of other UEs. And the link requirement information of the other UE determines that the connection between the RUE and other UEs is unnecessary for other UEs (for example, at least one of the QoS quality of other connections existing by other UEs), Then, the RUE can disconnect from other UEs, establish its connection with the UE, and provide relay services for the UE.
  • QoS quality is poor or better, can be determined according to specific service requirements, for example, can provide smooth online video service is considered to be better, can not be considered worse; or, depending on the specific
  • the QoS quality index is determined to be better if the QoS quality index is greater than the threshold and less than the threshold.
  • the UE during the communication process between the UE and the RUE, the UE has a connection with the second network device, and the RUE exists and the first The connection of the network device or it satisfies the condition for establishing a connection with the first network device, or the RUE resides at the first network device. If the UE establishes a connection with the RUE through the PC5 interface, the second network device and the resources allocated by the first network device are needed, for example, the UE is not in the coverage of the first network device, and the first network device is configured to the RUE for the D2D communication.
  • Resources whether based on configuration or RUE based on a pool selection, are likely to be used with the second network device to configure the UE for the connection with the network device or the UE and other RUE for D2D communication.
  • Resource conflicts In order to reduce conflicts on resources, the following steps may be specifically included:
  • the UE determines the information of the RUE and the information of the first network device, and sends the information of the RUE information to the second network device.
  • the information of the RUE may include an identifier of the RUE, an identifier of the RUE camping cell, and the like.
  • the information of the first network device may include an identification of the first network device, and the like.
  • the foregoing information UE may be received by a process of device discovery.
  • the second network device may indicate, according to the information of the RUE and/or the information of the first network device, that the first network device is allocated to the RUE for the RUE.
  • a resource for D2D communication with the UE may indicate, according to the information of the RUE and/or the information of the first network device, that the first network device is allocated to the RUE for the RUE.
  • the first network device and the second network device may negotiate to reduce the possibility of resource conflict.
  • the second network device may determine, according to the information of the first network device sent by the UE, the first network device and indicate the first network device.
  • the second network device is configured to transmit D2D resource information of the data by the UE, and the first network device allocates the D2D communication resource for the RUE based on the foregoing information.
  • step S520 can be replaced by:
  • A The following information is exchanged between the second network device and the first network device:
  • the first network device allocates resources to the RUE for D2D communication.
  • the second network device allocates resources for the RUE to communicate with the UE based on resources allocated by the first network device to the RUE for D2D communication, to avoid resources allocated by the first network device to the RUE for D2D communication.
  • multi-connection communication can also be realized by the combination of the combination of FIG. 3, FIG. 4 and FIG.
  • the network device sends its supported link state and/or link requirements
  • the RUE sends its supported link state and/or link requirements, which may be mutually exclusive.
  • the RUE may receive the supported link state and/or link requirement sent by the network device before transmitting the link state and/or link requirement supported by the UE to the UE. Only if the network device supports it, determine whether it supports it, and/or send the supported link state and/or link requirements to the UE; of course, the RUE can also be uncertain about the support of the network device, and only the self. The support situation is sent to the UE.
  • the UE needs to receive the supported link state and/or link requirement sent by the network device, and further determine whether the RUE and the network device corresponding to the RUE support serving the UE. Or; the information sent by the RUE includes the link state and/or link requirement supported by both the RUE and the network device (in this case, as described in FIG. 3, the RUE may receive or actively request the network device. Supported link state and/or link requirements). For another example, in the embodiment shown in FIG. 3, the UE may also receive the supported link state and/or link requirement of the RUE or the network device before sending the UE's own requirements and/or status to the RUE or the network device.
  • the specific receiving process may adopt the description scheme in the embodiment shown in FIG.
  • the UE may determine, according to the RUE or the network device, the supported link state and/or the link requirement, the RUE or the network device that can provide the service for the UE. And then establish a connection with it.
  • the UE may send only one connection establishment request to request the RUE or the network device to provide a service for it; or, the UE may carry its own requirement and/or status in the connection establishment request.
  • the example may specifically include the following steps:
  • the UE sends a first request message to the RUE, where the UE requests the RUE to connect to the network device as a relay device, when the UE needs to generate the data transmission rate.
  • the first request message may include a requirement that the UE needs the RUE to provide a relay service, and may further include that the UE needs a RUE that is in a different cell from the UE to provide a relay service for the UE.
  • the RUE After receiving the first request message sent by the UE, the RUE sends a second request message to the eNB that is connected to the RUE, where the second request message is used to request the RUE to provide a relay service for the UE.
  • the RUE may send a second request to the eNB, where the request is used to request the RUE to provide a relay service for the UE in the neighboring cell, where the RUE may be randomly accessed through a PRACH (Physical Random Access Channel)
  • PRACH Physical Random Access Channel
  • the preamble or Msg3 in the process is carried, or carried by any message in the RRC connection establishment process, or carries the second request message and the indication information of the eNB in a dedicated message after the RRC connection is established.
  • the second base station receives the second request message sent by the RUE, and returns a response message, where the response message carries indication information about whether to support providing the relay service for the UE.
  • the RUE returns a response message to the UE, where the response message carries indication information that supports providing a relay service for the UE.
  • the UE receives the response message sent by the RUE, and determines, according to the information carried in the response, that when the RUE and the eNB corresponding to the RUE support providing the UE with the relay service, the UE increases the connection between the RUE and the eNB.
  • Fig. 7 shows a simplified schematic diagram of one possible design structure of the first user equipment involved in the above embodiment.
  • the first user equipment may include a transmitter 701, a receiver 702, a controller/processor 703, a memory 704, a modem processor 705, a WIFI and/or Bluetooth module 710, and a power source 711 and the like.
  • the transmitter 701 and the receiver 702 can be integrated into a transceiver.
  • the transmitter 701 conditions (eg, analog transforms, filters, amplifies, and upconverts, etc.) the output samples and generates an uplink signal that is transmitted via an antenna to the second device described in the above embodiments (eg, The second user equipment or the first network device).
  • the antenna receives the downlink signal transmitted by the second device in the above embodiment.
  • Receiver 702 conditions (eg, filters, amplifies, downconverts, digitizes, etc.) the signals received from the antenna and provides input samples.
  • encoder 706 receives the traffic data and signaling messages to be transmitted on the uplink and processes (e.g., formats, codes, and interleaves) the traffic data and signaling messages.
  • Modulator 707 further processes (e.g., symbol maps and modulates) the encoded traffic data and signaling messages and provides output samples.
  • Demodulator 709 processes (e.g., demodulates) the input samples and provides symbol estimates.
  • the decoder 708 processes (e.g., deinterleaves and decodes) the symbol estimate and provides decoded data and signaling messages that are sent to the first user equipment.
  • Encoder 706, modulator 707, demodulator 709, and decoder 708 may be implemented by a composite modem processor 705. These units are processed according to the radio access technology employed by the radio access network (e.g., access technologies of LTE and other evolved systems).
  • the WIFI and/or Bluetooth module 710 may include a receiver of a WIFI and/or Bluetooth signal and a transmitter through which the WIFI and/or Bluetooth function can be implemented with other The capable device performs data transmission, such as a second user device.
  • the first user equipment may not include the transmitter 701, the receiver 702, and the modulation and demodulation processing.
  • a power source 711 (such as a battery) is responsible for powering various components.
  • the power source can be logically coupled to the controller/processor 703 through a power management system to manage functions such as charging, discharging, and power consumption through the power management system.
  • the controller/processor 703 controls and manages the actions of the first user equipment for performing the processing performed by the first user equipment in the above embodiment. For example, other processes for controlling a user device to perform a second task and/or the techniques described herein. As an example, the controller/processor 703 is operative to also perform the processes involved in the first user device of FIGS. 3-6 and/or other processes for the techniques described herein.
  • Memory 704 is used to store program code and data for the first user device.
  • Fig. 8 shows a simplified schematic diagram of one possible design structure of the second user equipment involved in the above embodiment.
  • the second user equipment includes a transmitter 801, a receiver 802, a controller/processor 803, a memory 804, a modem processor 805, and may also include a WIFI and/or Bluetooth module 810, a power source 811, and the like.
  • Transmitter 801 conditions (e.g., analog conversion, filtering, amplifying, upconverting, etc.) the output samples and generates a link signal that is transmitted via an antenna to the network device or first user equipment described in the above embodiments.
  • the antenna receives the downlink signal transmitted by the network device in the above embodiment.
  • Receiver 802 conditions (eg, filters, amplifies, downconverts, digitizes, etc.) the signals received from the antenna and provides input samples.
  • encoder 806 receives the traffic data and signaling messages to be transmitted over the link and processes (e.g., formats, codes, and interleaves) the traffic data and signaling messages.
  • Modulator 807 further processes (e.g., symbol maps and modulates) the encoded traffic data and signaling messages and provides output samples.
  • Demodulator 1209 processes (e.g., demodulates) the input samples and provides symbol estimates.
  • Decoder 808 processing (eg, deinterleaving and Decoding) The symbol estimates and provides decoded data and signaling messages that are sent to the second user equipment.
  • Encoder 806, modulator 807, demodulator 809, and decoder 808 may be implemented by a composite modem processor 805. These units are processed according to the radio access technology employed by the radio access network (e.g., access technologies of LTE and other evolved systems).
  • the WIFI and/or Bluetooth module 810 may include a receiver of a WIFI and/or Bluetooth signal and a transmitter through which data transmission with other WIFI and/or Bluetooth enabled devices may be implemented, for example, User equipment.
  • a power source 811 (such as a battery) is responsible for powering various components.
  • the power source can be logically coupled to the controller/processor 803 through a power management system to manage functions such as charging, discharging, and power consumption through the power management system.
  • the controller/processor 803 controls and manages the actions of the second user equipment for performing the processing performed by the second user equipment in the above embodiment. For example, other processes for controlling a user device to perform a first task and/or the techniques described herein. As an example, the controller/processor 803 is operative to also perform the processes involved in the second user device of FIGS. 3-6 and/or other processes for the techniques described herein.
  • Memory 804 is used to store program code and data for the second user device.
  • FIG. 9 is a schematic diagram showing a possible structure of the first network device involved in the above embodiment.
  • the first network device may be an access network device, including a transmitter (transmitter)/receiver 901, a controller/processor 902, a memory 903, and a communication unit 904.
  • the transmitter/receiver 901 is configured to support the transmission and reception of information between the access network device and the user equipment in the foregoing embodiment, and to support radio communication between the user equipment and other user equipment.
  • the controller/processor 902 performs various functions for communicating with the UE. On the uplink, the uplink signal from the UE is received via the antenna, coordinated by the receiver 901, and further processed by the controller/processor 902 to recover the service data and signaling information transmitted by the UE.
  • controller/processor 902 On the downlink, traffic data and signaling messages are processed by controller/processor 902 and mediate by transmitter 901 to generate downlink signals for transmission to the UE via the antenna. Controller/processor 902 also performs Figures 3 through 6 Processes involving access network devices and/or other processes for the techniques described herein.
  • the memory 903 is used to store program codes and data of the base station.
  • the communication unit 904 is configured to support the access network device to communicate with other network entities. For example, it is used to support communication between an access network device and other communication network entities shown in FIG. 2, such as an MME, SGW and or PGW located in the core network EPC.
  • Figure 9 only shows a simplified design of the access network device.
  • the base station may include any number of transmitters (transmitters), receivers, processors, controllers, memories, communication units, etc., and all access network devices that can implement the present invention are protected by the present invention. Within the scope.
  • the first network device may be a core network device, which may not include a transmitter (transmitter)/receiver 901.
  • FIG. 10 is a schematic diagram showing a possible structure of the second network device involved in the above embodiment.
  • the second network device may be an access network device, including a transmitter (transmitter)/receiver 1001, a controller/processor 1002, a memory 1003, and a communication unit 1004.
  • the transmitter/receiver 1001 is configured to support the transmission and reception of information between the access network device and the user equipment in the foregoing embodiment, and to support radio communication between the user equipment and other user equipment.
  • the controller/processor 1002 performs various functions for communicating with the UE. On the uplink, the uplink signal from the UE is received via the antenna, coordinated by the receiver 1001, and further processed by the controller/processor 1002 to recover the traffic data and signaling information transmitted by the UE.
  • controller/processor 1002 On the downlink, traffic data and signaling messages are processed by controller/processor 1002 and mediated by transmitter 1001 to generate downlink signals for transmission to the UE via the antenna.
  • the controller/processor 1002 also performs the processes involved in the access network device of Figures 3-6 and/or other processes for the techniques described herein.
  • the memory 1003 is used to store program codes and data of the base station.
  • the communication unit 1004 is configured to support the access network device to communicate with other network entities. For example, to support access network devices and Communication is performed between other communication network entities shown in FIG. 2, such as MME, SGW and or PGW located in the core network EPC. It will be appreciated that Figure 10 only shows a simplified design of the access network device. In practical applications, the base station may include any number of transmitters (transmitters), receivers, processors, controllers, memories, communication units, etc., and all access network devices that can implement the present invention are protected by the present invention. Within the scope.
  • the second network device may be a core network device, which may not include a transmitter (transmitter)/receiver 1001.
  • FIG. 11 is a schematic diagram of a virtual communication apparatus according to an embodiment of the present invention.
  • the device specifically includes:
  • the processing module 1101 is configured to determine first information, where the first information includes link state information of the first device and/or link requirement information of the first device, and the sending module 1102 is configured to send the first message to the second device, where The first message carries the first information, where the first message is used to instruct the second device to establish a connection for the first device according to the first message.
  • the first device has a connection with the second network device
  • the processing module 1101 is further configured to: determine the information of the second user device and the information of the first network device; the sending module 1102 is further configured to: use the second user
  • the information of the device and the information of the first network device are sent to the second network device, such that the second network device instructs the first network device to allocate resources to the second user device for the second user device to communicate with the first device, or The second network device allocates resources for the second user device to communicate with the first device based on the information of the first network device and/or the information of the second user device.
  • the receiving module 1103 is further configured to: receive the second message sent by the second device, where the second message carries the second information, where the second information includes the indication information of the user equipment supported by the second device; the indication information includes the supported information.
  • the processing module 1101 is further configured to: when the first device determines, according to the second message, that the second device supports providing the service for the first user device, the control transceiver module sends the first message to the second device.
  • FIG. 12 is a schematic diagram of a virtual communication apparatus according to an embodiment of the present invention.
  • the device specifically includes:
  • the receiving module 1201 is configured to receive a first message sent by the first device, where the first message carries the first information, where the first information includes link state information and/or link requirement information of the first device, where the first message is used. Instructing the second user equipment to establish a connection for the first device according to the first message; the processing module 1202 is configured to determine, according to the first information, that when the capability of the second user equipment meets the requirement of the first device, establishing a connection is provided for the first device service.
  • the second device includes a second user equipment and a first network device
  • the receiving module 1201 is further configured to receive a second message sent by the first network device, where the second message carries the second information, where the second information includes The indication information of the user equipment supported by the network device; the indication information includes a link state and/or a link requirement of the supported user equipment, or a link state and/or a link requirement of the unsupported user equipment; the processing module 1202 further And, when the first network device supports providing a service for the first device, and the capability of the second user device meets the requirement of the first device, establishing a connection to provide a service for the first device.
  • the first device has a connection with the second network device, and when the second device is the first network device, the receiving module 1201 is further configured to receive an indication message sent by the second network device, where the indication message is used to indicate a network device is allocated to the second user equipment for the second user equipment to communicate with the first device; the processing module 1202 is further configured to allocate, according to the indication message, the second user equipment to the second user equipment and the first device Resources for communication.
  • the first device has a connection with the second network device, and when the second device is the first network device, the sending module 1203 is further configured to: send, by the first network device, the resource information that is allocated to the second user device Giving the second network device; and causing the second network device to allocate resources to the first device based on the resource information allocated by the first network device to the second user device.
  • FIG. 13 is a schematic diagram of a virtual communication apparatus according to an embodiment of the present invention.
  • the device specifically includes:
  • the receiving module 1301 is configured to receive a third message sent by the at least one second user equipment or the at least one first network device, where the third message carries the second information, where the second information includes the indication information of the user equipment supported by the second device;
  • the indication information includes link state and/or link requirements of the supported user equipment, or link state and/or link requirements of the unsupported user equipment;
  • the device establishes a connection to provide services for the first device.
  • FIG. 14 is a schematic diagram of a virtual communication apparatus according to an embodiment of the present invention.
  • the device specifically includes:
  • the sending module 1401 is configured to send a third message to the first device, where the third message carries the second information, where the second information includes the indication information of the user equipment supported by the second device, and the indication information includes the link status of the supported user equipment. And/or a link requirement, or a link state and/or a link requirement of the user equipment that is not supported; the receiving module 1402 receives a connection establishment request message sent by the first device according to the third message, where the connection establishment request message is used to indicate The second device establishes a connection for the first device, and the processing module 1403 is configured to establish a connection according to the connection establishment request message to provide a service for the first device.
  • the second device includes a second user equipment and a first network device
  • the receiving module 1402 is further configured to: receive, by the second user equipment, a fourth message sent by the first network device, where the fourth message carries the first network device support. Instructions for the user device.
  • the second device includes the second user device and the first network device, and when the second device is the first network device, the sending module 1401 is further configured to send a third message to the second user device, where the third message carries
  • the second information includes the indication information of whether the first network device supports the user equipment of the specific link state and/or the specific link requirement
  • the transceiver module is further configured to receive the second user equipment according to the third a connection establishment request message sent by the message, the connection establishment request message is used to indicate that the first network device establishes a connection for the first device, and the processing module is further configured to establish a connection according to the connection establishment request.
  • the steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both.
  • the software module can be placed in random access memory (RAM), memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or technical field. Any other form of storage medium known.

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Abstract

本发明实施例涉及一种通信方法及设备。包括：第一设备确定第一信息，所述第一信息包括第一设备的链路状态信息和/或第一设备的链路需求信息，该第一设备为第一用户设备；第一用户设备向第二设备发送第一消息，该第一消息携带有第一信息，该第一消息用于指示第二设备根据第一消息为所述第一设备建立连接。其中，第二设备可以包括第二用户设备以及第一网络设备中的任意一个或两个。通过本发明实施例可以实现依据用户设备的链路状态信息和/或链路需求信息来为用户设备建立连接，能够更合理的建立连接。

Description

一种通信方法及设备 技术领域
本发明涉及通信技术领域，尤其涉及一种通信方法及设备。
背景技术
随着科技技术的不断发展，用户对于通信速率等体验的要求不断的提升，而双链接通信被视为能够有效的提高通信速率的重要途径。
在现有通信技术中，用户设备除了需要连接一个宏基站(Macro evolved Node B，MeNB)，用来主要负责为用户设备提供服务外，还需要链接一个小基站(Small eNB，SeNB)，用来辅助宏基站来为用户设备提供服务。所以，如果需要使用现有的双连接通信技术改善用户设备的服务体验，比如提高可获得的数据速率，必须额外部署一个小基站。这会大大增加运营商的部署成本，降低其部署动力。否则，双连接技术就没有实施基础，不能用于改善用户设备的服务体验。
发明内容
本发明实施例提供了一种通信方法及设备。通过本发明实施例可以实现，更合理的为通信设备建立连接来提供高通信速率，降低了网络部署的成本。
第一方面，本发明实施例提供了一种通信方法。该方法包括：第一设备确定第一信息，该第一信息包括第一设备的链路状态信息和/或第一设备的链路需求信息，该第一设备为第一用户设备；第一设备向第二设备发送第一消息，该第一消息携带有第一信息，该第一消息用于指示第二设备根据第一消息为第一设备建立连接。其中，第二设备可以包括第二用户设备以及第一网络设备中的任意一个或两个，另外，第一设备的链路状态信息可以用于指示 第一设备已经建立的通信连接的状态的特征信息。第一设备的链路需求信息可以用于指示第一设备对为其提供服务的第二设备的要求。通过本发明实施例可以实现依据用户设备的链路状态信息和/或链路需求信息来为用户设备建立连接，能够更合理的建立连接，尤其是对于用户设备已经建立了一条或多条与网络设备通信的连接的情况，能够有效的提高通信速率，还可以利用具有中继能力的用户设备作为第二设备，降低网络部署的成本。
在一个可能的设计中，第一设备的链路需求信息可以根据第一设备当前运行的应用程序对于网络速率的要求来确。通过本发明实施例建立的连接能够更有效、更有针对性的提高速率，提高了用户体验。
在另一个可能的设计中，第一设备向第二用户设备发送第一消息包括：第一设备通过PC5接口发送第一消息。
在又一个可能的设计中，第一设备向网络设备发送第一消息包括：第一设备直接向网络设备发送所述第一消息，或者，第一设备通第一设备之外的其它用户设备向网络设备发送第一消息。
在再一个可能的设计中，第一消息用于指示第二设备根据第一消息为第一设备建立连接。其中，第一消息可以用于指示第二设备根据第一消息为第一设备建立的连接包括，第二用户设备与第一设备的连接以及第二用户设备与第一网络设备的连接；或者，当第二用户设备存在其与第一网络设备的连接时，第一消息用于指示第二设备根据第一消息为第一设备建立的链接包括，第二用户设备与第一设备的连接；或者，当第一设备存在其与第二用户设备的连接时，第一消息用于指示第二设备根据第一消息为第一设备建立的连接包括，第二用户设备与第一网络设备的连接；或者，第一消息用于指示第二设备根据第一消息为第一设备建立的连接包括第二用户设备与第一设备的连接。通过本发明实施例可以实现以第二用户设备为中继建立第一设备与网络设备的连接，能够有效的提高网络通信的速率。
在再一个可能的设计中，第一设备存在与第二网络设备的连接，该方法 还包括：第一设备确定第二用户设备的信息以及第一网络设备的信息；第一设备将第二用户设备的信息以及第一网络设备的信息发送给第二网络设备，以使得第二网络设备指示第一网络设备分配给第二用户设备用于第二用户设备与第一设备进行通信的资源，或者第二网络设备基于第一网络设备的信息和/或第二用户设备的信息，分配第一设备用于第二用户设备与第一设备进行通信的资源。通过本发明实施例可以实现网络设备之间协商分配给用户设备的资源，使得资源的配置更合理，降低了冲突的可能。
在再一个可能的设计中，第二网络设备与第一网络设备之间交互第二网络设备分配给第一设备的资源以及第一网络设备分配给所述第二用户设备的资源。通过本发明实施例可以实现网络设备之间协商分配给用户设备的资源，使得资源的配置更合理，降低了冲突的可能。
在再一个可能的设计中，第一设备向第二设备发送第一消息之前还包括：第一设备接收第二设备发送的第二消息，该第二消息携带有第二信息，该第二信息包括所述第二设备支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求。
在再一个可能的设计中，第一设备向第二设备发送第一消息，具体为：第一设备根据第二消息确定第二设备支持为第一设备提供服务时，向第二设备发送第一消息。
第二方面，本发明实施例提供了一种通信方法。包括：第二设备接收第一设备发送的第一消息，该第一消息携带有第一信息，该第一信息包括第一设备的链路状态信息和/或链路需求信息，该第一消息用于指示第二用户设备根据第一消息为第一设备建立连接。第二设备根据第一信息确定，当第二设备的能力满足第一设备的需求时，建立连接为第一设备提供服务。其中，第二设备可以包括第二用户设备以及第一网络设备中的任意一个或两个，另外，第一设备的链路状态信息可以用于指示第一设备已经建立的通信连接的状态的特征信息。第一设备的链路需求信息可以用于指示第一设备对为其提供服 务的第二设备的要求。
在一个可能的设计中，第二设备可以根据第一信息确定第一设备对于已建链路的需求程度。
在另一个可能的设计中，第二设备在建立连接为第一设备提供服务时，可以为新建链路的需求程度最高的第一设备建立连接提供服务，也可以根据第一设备对于已建链路的需求程度，断开某个已建但需求不高的链路对应的连接，为新建链路的需求程度高的第一设备建立连接提供服务，以便确定更多的资源为对新建链路的需求程度高的UE提供服务
在一个可能的设计中，还包括：第二用户设备接收第一网络设备发送的第二消息，该第二消息携带有第二信息，该第二信息包括第一网络设备支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求；当所述第一网络设备支持为所述第一设备提供服务，且第二用户设备的能力满足第一设备的需求时，第二用户设备建立连接为第一设备提供服务。
在再一个可能的设计中，还包括：第二用户设备向第一网络设备发送请求消息，该请求消息用于请求第一网络设备支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求。
在再一个可能的设计中，前述请求消息携带有第一信息。
在再一个可能的设计中，第二设备根据第一消息建立连接包括：第一网络设备根据第一消息为第一设备建立第二用户设备与第一设备的连接以及第二用户设备与第一网络设备的连接；或者，当第二用户设备存在其与第一网络设备的连接时，第一网络设备根据第一消息为第一设备建立第二用户设备与第一设备的连接；或者，当第一设备存在与第二用户设备的连接时，第一网络设备根据第一消息为第一设备建立第二用户设备与第一网络设备的连接；或者，第一网络设备根据第一消息为第一设备建立第二用户设备与第一设备的连接。
在再一个可能的设计中，第一设备存在与第二网络设备的连接，方法还包括：第一网络设备接收第二网络设备发送的指示消息，指示消息用于指示第一网络设备分配给第二用户设备用于第二用户设备与第一设备进行通信的资源；第一网络设备基于指示消息分配给第二用户设备用于第二用户设备与第一设备进行通信的资源。
在再一个可能的设计中，第一设备存在与第二网络设备的连接，方法还包括：第一网络设备将其分配给第二用户设备的资源信息发送给第二网络设备；以使得第二网络设备基于第一网络设备分配给第二用户设备的资源信息为第一设备分配资源。
第三方面，本发明实施例提供了一种通信方法。包括，第一设备接收至少一个第二设备发送的第三消息，所述第三消息携带有第二信息，所述第二信息包括所述第二设备支持的用户设备的指示信息；所述指示信息包括支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求；所述第一设备根据所述第二信息选择所述至少一个第二设备中的一个；所述第一设备向选定的第二设备发送连接建立请求消息，所述连接建立请求消息用于指示所述选定的第二设备为所述第一设备建立连接为所述第一设备提供服务。通过本发明实施例可以实现用户设备依据第二设备的链路状态信息和/或链路需求信息的支持情况来选择建立连接的第二设备，能够更合理的建立连接，尤其是对于用户设备已经建立了一条或多条与网络设备通信的连接的情况，能够有效的提高通信速率，还可以利用具有中继能力的用户设备作为第二设备，降低网络部署的成本。
在一个可能的设计中，第一设备存在与第二网络设备的连接，方法还包括：第一设备确定选定的第二用户设备的信息和/或选定的第一网络设备的信息；第一设备将选定的第二用户设备的信息和/或选定的第一网络设备的信息发送给第二网络设备，以使得第二网络设备指示第一网络设备分配给第二用户设备用于第二用户设备与第一设备进行通信的资源，或者第二网络设备基 于选定的第一网络设备的信息和/或选定的第二用户设备的信息，分配第一设备用于第二用户设备与第一设备进行通信的资源。
第四方面，本发明实施例提供了一种通信方法。包括：第二设备向第一设备发送第三消息，第三消息携带有第二信息，第二信息包括第二设备支持的用户设备的指示信息；指示信息包括支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求；第二设备接收第一设备依据第三消息发送的连接建立请求消息，连接建立请求消息用于指示，第二设备为第一设备建立连接；第二设备根据连接建立请求消息建立连接为第一设备提供服务。
在一个可能的设计中，还包括：第二用户设备接收第一网络设备发送的第四消息，第四消息携带有第一网络设备是否支持为特定链路状态和/或特定链路需求的用户设备提供服务的指示信息。
在另一个可能的设计中，还包括：第二用户设备向第一网络设备发送请求消息，请求消息用于请求第一网络设备是否支持为特定链路状态和/或特定链路需求的用户设备提供服务的指示信息。
在再一个可能的设计中，第一网络设备根据连接建立请求消息建立连接包括：第一网络设备根据连接建立请求消息为第一设备建立第二用户设备与第一设备的连接以及第二用户设备与第一网络设备的连接；或者，当第二用户设备存在其与第一网络设备的连接时，第一网络设备根据连接建立请求消息为第一设备建立第二用户设备与第一设备的连接；或者，当第一设备存在与第二用户设备的连接时，第一网络设备根据连接建立请求消息为第一设备建立第二用户设备与第一网络设备的连接；或者，第一网络设备根据连接建立请求消息为第一设备建立第二用户设备与第一设备的连接。
在再一个可能的设计中，第一设备存在与第二网络设备的连接，方法还包括：第一网络设备接收第二网络设备发送的指示消息，指示消息用于指示第一网络设备分配给第二用户设备用于第二用户设备与第一设备进行通信的 资源；第一网络设备基于指示消息分配给第二用户设备用于第二用户设备与第一设备进行通信的资源。
在再一个可能的设计中，第一设备存在与第二网络设备的连接，方法还包括：第一网络设备将其分配给第二用户设备的资源信息发送给第二网络设备；以使得第二网络设备基于第二网络设备分配给第二用户设备的资源信息为第一设备分配资源。
第五方面，本发明实施例提供了一种通信方法。其中，第一设备存在与第二网络设备的链接，第二用户设备存在与第一网络设备的链接，方法还包括：第二网络设备接收第一设备发送的第二用户设备的信息和/或第一网络设备的信息；第二网络设备向第一网络设备发送指示消息，指示消息用于指示第一网络设备分配给第二用户设备用于第二用户设备与第一设备进行通信的资源。
第六方面，本发明实施例提供了一种多链接通信方法。其中，第一设备存在与第二网络设备的链接，第二用户设备存在与第一网络设备的链接，方法包括：第二网络设备接收第一网络设备发送的第一网络设备分配给第二用户设备的资源信息；第二网络设备基于第一网络设备分配给第二用户设备的资源信息为第一设备分配资源。本发明实施例提供的。
在上述方面的一些可能的设计中，链路状态信息包括下述任意一项或多项：第一设备已建立的通信链路的数量；第一设备已建立的通信链路的服务质量；第一设备已建立的通信链路的类型。
在上述方面的另一些可能的设计中，第二设备包括下述一项或多项：第二用户设备、第一网络设备。
在上述方面的又一些可能的设计中，链路需求信息包括下述任意一项或多项：第一设备对需要为其提供服务的网络设备的要求；第一设备对需要为其提供服务的第二用户设备的要求；第一设备对需要为其提供服务的第二用户设备所在小区的要求；第一设备对其与需要为其提供服务的网络设备之间 的通信质量的要求；第一设备对其与需要为其提供服务的第二用户设备之间的通信质量的要求；第一设备对其与需要为其提供服务的第二用户设备所在小区中的通信质量的要求。
第七方面，本发明实施例提供了一种通信装置。包括：处理模块，用于确定第一信息，第一信息包括第一设备的链路状态信息和/或第一设备的链路需求信息；收发模块，用于向第二设备发送第一消息，第一消息携带有第一信息，第一消息用于指示第二设备根据第一消息为第一设备建立连接。
在一个可能的设计中，第一设备存在与第二网络设备的连接，处理模块还用于，确定第二用户设备的信息以及第一网络设备的信息；收发模块还用于，将第二用户设备的信息以及第一网络设备的信息发送给第二网络设备，以使得第二网络设备指示第一网络设备分配给第二用户设备用于第二用户设备与第一设备进行通信的资源，或者第二网络设备基于第一网络设备的信息和/或第二用户设备的信息，分配第一设备用于第二用户设备与第一设备进行通信的资源。
在另一个可能的设计中，收发模块还用于，接收第二设备发送的第二消息，第二消息携带有第二信息，第二信息包括第二设备支持的用户设备的指示信息；指示信息包括支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求。
在再一个可能的设计中，处理模块还用于，第一设备根据第二消息确定第二设备支持为第一用户设备提供服务时，控制收发模块向第二设备发送第一消息。
第八方面，本发明实施例提供了一种通信装置。包括：收发模块，用于接收第一设备发送的第一消息，第一消息携带有第一信息，第一信息包括第一设备的链路状态信息和/或链路需求信息，第一消息用于指示第二用户设备根据第一消息为第一设备建立连接；处理模块，用于根据第一信息确定，当第二用户设备的能力满足第一设备的需求时，建立连接为第一设备提供服务。
在一个可能的设计中，第二设备包括第二用户设备和第一网络设备，收发模块还用于，接收第一网络设备发送的第二消息，第二消息携带有第二信息，第二信息包括第一网络设备支持的用户设备的指示信息；指示信息包括支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求；处理模块还用于，当第一网络设备支持为第一设备提供服务，且第二用户设备的能力满足第一设备的需求时，建立连接为第一设备提供服务。
在再一个可能的设计中，第一设备存在与第二网络设备的连接，当第二设备为第一网络设备时，收发模块还用于，接收第二网络设备发送的指示消息，指示消息用于指示第一网络设备分配给第二用户设备用于第二用户设备与第一设备进行通信的资源；处理模块还用于，基于指示消息分配给第二用户设备用于第二用户设备与第一设备进行通信的资源。
在再一个可能的设计中，第一设备存在与第二网络设备的连接，当第二设备为第一网络设备时，收发模块还用于，第一网络设备将其分配给第二用户设备的资源信息发送给第二网络设备；以使得第二网络设备基于第一网络设备分配给第二用户设备的资源信息为第一设备分配资源。
第九方面，本发明实施例提供了一种通信装置。包括：收发模块，用于接收至少一个第二用户设备或至少一个第一网络设备发送的第三消息，第三消息携带有第二信息，第二信息包括第二设备支持的用户设备的指示信息；指示信息包括支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求；处理模块，用于根据第二信息选择至少一个第二设备中的一个；收发模块还用于，向选定的第二设备发送连接建立请求消息，连接建立请求消息用于指示选定的第二设备为第一设备建立连接为第一设备提供服务。
第十方面，本发明实施例提供了一种通信装置。包括：收发模块，用于向第一设备发送第三消息，第三消息携带有第二信息，第二信息包括第二设 备支持的用户设备的指示信息；指示信息包括支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求；收发模块还用于，接收第一设备依据第三消息发送的连接建立请求消息，连接建立请求消息用于指示，第二设备为第一设备建立连接；处理模块，用于根据连接建立请求消息建立连接为第一设备提供服务。
在一个可能的设计中，第二设备包括第二用户设备和第一网络设备，收发模块还用于，第二用户设备接收第一网络设备发送的第四消息，第四消息携带有第一网络设备支持的用户设备的指示信息。
在另一个可能的设计中，第二设备包括第二用户设备和第一网络设备，当第二设备为第一网络设备时，收发模块还用于，向第二用户设备发送第三消息，第三消息携带有第二信息，第二信息包括第一网络设备是否支持为特定链路状态和/或特定链路需求的用户设备提供服务的指示信息；收发模块还用于，接收第二用户设备依据第三消息发送的连接建立请求消息，连接建立请求消息用于指示，第一网络设备为第一设备建立连接；处理模块还用于，根据连接建立请求建立连接。
第十一方面，本发明实施例提供了一种用户设备，该用户设备具有实现上述方法设计中第一设备行为的功能。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的模块。模块可以是软件和/或硬件。
在一个可能的设计中，第一设备的结构中包括收发器和处理器，接收器被配置为支持第一设备接与第二设备之间数据的收发。
第十二方面，本发明实施例提供了一种用户设备，该用户设备具有实现上述方法设计中第二用户设备行为的功能。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的模块。模块可以是软件和/或硬件。
在一个可能的设计中，第二用户设备的结构中包括收发器和处理器，接 收器被配置为支持第一设备接与第二设备之间数据的收发。
第十三方面，本发明实施例提供了一种网络设备，该网络设备具有实现上述方法实际中第一网络设备行为的功能。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的模块。
在一个可能的设计中，第一网络设备的结构中包括处理器和收发器，处理器被配置为支持第一网络设备执行上述方法中相应的功能。收发器用于支持第一网络设备与第一用户设备、第二用户设备以及第二网络设备之间的通信，收发上述方法中所涉及的信息或者指令。第一网络设备还可以包括存储器，存储器用于与处理器耦合，其保存第一网络设备必要的程序指令和数据。
第十四方面，本发明实施例提供了一种网络设备，该网络设备具有实现上述方法实际中第二网络设备行为的功能。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的模块。
在一个可能的设计中，第二网络设备的结构中包括处理器和收发器，处理器被配置为支持第二网络设备执行上述方法中相应的功能。收发器用于支持第二网络设备与第一用户设备、第二用户设备以及第一网络设备之间的通信，收发上述方法中所涉及的信息或者指令。第二网络设备还可以包括存储器，存储器用于与处理器耦合，其保存第二网络设备必要的程序指令和数据。
第十五方面，本发明实施例提供了一种通信系统，该系统包括上述方面的第一设备以及第二设备。
第十六方面，本发明实施例提供了一种计算机存储介质，用于储存为上述第一设备所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
第十七方面，本发明实施例提供了一种计算机存储介质，用于储存为上述第二设备所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
通过本发明实施例，可以实现依据用户设备的链路状态信息和/或链路需 求信息来为用户设备建立连接，能够更合理的建立连接，尤其是对于用户设备已经建立了一条或多条与网络设备通信的连接的情况，通过本发明实施例能够有效的提高通信速率，还可以利用具有中继能力的用户设备作为第二设备，降低网络部署的成本。
附图说明
图1A为用户设备接入网络设备的一种场景示例；
图1B为用户设备接入网络设备的另一种场景示例；
图2为一种系统架构图；
图3为本发明方法实施例提供的一种通信方法流程图；
图4为本发明方法实施例提供的另一种通信方法流程图；
图5为本发明方法实施例提供的又一种通信方法流程图；
图6为本发明方法实施例提供的再一种通信方法流程图；
图7为本发明方法实施例提供的第一用户设备的结构示意图；
图8为本发明方法实施例提供的第二用户设备的结构示意图；
图9为本发明方法实施例提供的第一网络设备的结构示意图；
图10为本发明方法实施例提供的第二网络设备的结构示意图；
图11为本发明实施例提供的一种虚拟通信装置；
图12为本发明实施例提供的另一种虚拟通信装置；
图13为本发明实施例提供的再一种虚拟通信装置；
图14为本发明实施例提供的又一种虚拟通信装置。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。
在本发明实施例中，第一用户设备可以包括各种具有无线通信功能的手 持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备,以及各种形式的用户设备(User Equipment，UE)、移动台(Mobile station，MS)，终端(terminal)、终端设备(Terminal Equipment)等等。为方便描述，本申请中，上面提到的设备统称为第一设备、第一用户设备或UE。
第二用户设备可以包括各种具有无线通信功能且能够提供中继服务的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备,以及各种形式的用户设备、移动台、终端、终端设备等等。为方便描述，本申请中，上面提到的设备统称为第二用户设备或RUE(Relay User Equipment，RUE)。
网络设备可以包括接入网设备以及核心网设备等等，其中，核心网设备通过接入网设备与用户设备连接。
接入网设备可以为一种部署在无线接入网中用以为UE或RUE提供无线通信功能的装置。该装置可以包括各种形式的宏基站，小基站，中继站，接入点等等。在采用不同的无线接入技术的系统中，具备基站功能的设备的名称可能会有所不同，例如在LTE网络中，称为演进的节点B(evolved NodeB简称：eNB或者eNodeB),在第三代3G网络中，称为节点B(Node B)等等。为方便描述，本申请中，上述为UE提供无线通信功能的装置统称为接入网设备或eNB。
核心网设备可以为提供用户连接、对用户的管理以及对业务完成承载，作为承载网络提供到外部网络的接口的设备。用户连接的建立包括移动性管理(MM)、呼叫管理(CM)、交换/路由、录音通知(结合智能网业务完成到智能网外围设备的连接关系)等功能。用户管理包括用户的描述、QoS(Quality of Service，服务质量)、用户通信记录(Accounting)、与智能网平台的对话提供虚拟居家环境、安全性(由鉴权中心提供相应的安全性措施包含了对移动业务的安全性管理和对外部网络访问的安全性处理)。承载连 接(Access to)包括到外部的PSTN、外部电路数据网和分组数据网、Internet和Intranets、以及移动自己的SMS服务器等等核心网可以提供的基本业务包括移动办公、电子商务、通信、娱乐性业务、旅行和基于位置的服务、遥感业务(Telemetry)简单消息传递业务(监视控制)等等。例如在LTE网络中的MME(Mobility Management Entity，移动管理实体)，SGW(Serving GateWay，服务网关)等等。为方便描述，本申请中，上述提供用户连接、对用户的管理以及对业务完成承载，作为承载网络提供到外部网络的接口的设备统称为核心网设备。
其中，第一用户设备与第二用户设备之间支持D2D(Device-to-Device，端到端)通信，例如，第一用户设备与第二用户设备都支持蓝牙功能、WIFI(Wireless Fidelity，无线保真)功能，或者都支持PC5接口等等。应该知道的是，此处D2D通信的具体实现方式仅为举例，其他可以实现两个用户设备通信的实现方式也应包含其中，不再赘述。
其中，为了与第一设备区分，第二用户设备以及网络设备可以统称为第二设备。如图1A以及图1B示出了用户设备接入网路设备的多种场景。
如图1A所示，包括：宏基站111、小基站121、小基站122、用户设备131-135等等。其中，在图1A所示的场景中，小基站121以及小基站122由宏基站111控制；用户设备131、用户设备132在宏基站111的覆盖范围内；用户设备133在小基站121的覆盖范围内；用户设备134、用户设备135在小基站122的覆盖范围内。
在图1A中示出了的场景可以存在如下连接：
一、用户设备直接与宏基站链接，例如，用户设备131、用户设备132直接与宏基站111连接。
二、直接与同一宏基站连接的用户设备作为RUE，用户设备通过RUE与宏基站连接，例如，用户设备131作为RUE，用户设备132、用户设备134通过用户设备131与宏基站111链接。
三、用户设备通过小基站与宏基站连接，例如，用户设备133通过小基站121与宏基站111连接，用户设备134、用户设备135通过小基站122与宏基站111连接。
四、同一小基站下的用户设备作为RUE，用户设备通过RUE与宏基站连接，例如，用户设备135作为RUE，用户设备134通过用户设备135与小基站122以及宏基站111连接。
五，不同小基站，或小基站覆盖范围外的用户设备作为RUE，用户设备通过RUE与宏基站连接，例如，用户设备133作为RUE，用户设备134通过用户设备133与小基站121以及宏基站111连接；或者，用户设备132作为RUE，用户设备134通过用户设备132与宏基站111连接。
如图1B所示，包括：宏基站112、宏基站113、小基站123、小基站124、用户设备136-139以及用户设备140等等。其中，在图1B所示的场景中，小基站123由宏基站112控制，小基站124由宏基站113控制；用户设备137、用户设备139在宏基站113的覆盖范围内；用户设备136在宏基站112的覆盖范围内；用户设备138在小基站123的覆盖范围内；用户设备140在小基站124的覆盖范围内。
在图1B中示出了的场景可以存在如下连接：
六、直接与不同宏基站连接的用户设备作为RUE，用户设备通过RUE与宏基站连接，例如，用户设备136与宏基站112直接连接，用户设备136作为RUE，用户设备137通过用户设备136与用户设备112连接；或者，用户设备139与宏基站113连接，用户设备139作为RUE，用户设备138通过用户设备139与宏基站113连接。
七、小基站不同，且小基站连接的宏基站也不同的用户设备作为RUE，用户设备通过RUE与宏基站连接，例如，用户设备140通过小基站124与宏基站113连接，用户设备140作为RUE，用户设备138通过用户设备140与小基站124以及宏基站113连接。
八、用户设备直接与用户设备连接。例如，用户设备136与用户设备137连接。
在本发明实施例中，用户设备可以通过上述任意一种或多种连接来接入核心网设备。进一步，还可以访问因特网。
需要说明的是，一个宏基站可以管理若干小基站，一个小基站可以接入若干用户设备，且小基站与小基站，宏基站与小基站，宏基站与宏基站的覆盖范围可以是有重合的。一个用户设备通过发现等功能，可以发现若干小区，该若干小区对应一个或多个基站(宏基站，小基站等等)，还可以发现若干RUE，该若干RUE可以属于同一小区也可以属于不同小区。
还需要说明的是，图1A以及图1B中所示的宏基站或小基站，还可以是其他接入网设备，其接入形式类似，不再赘述。
还需要说明的是，图1A以及图1B中所示的连接方式还可以有多种，为了简明不再赘述。
应该知道的是，上述定义指示为了表述更清楚，并不够成对本发明的限定。
本发明描述的技术可以适用于长期演进(Long Term Evolution，简称LTE)系统，或其他采用各种无线接入技术的无线通信系统，例如采用码分多址，频分多址，时分多址，正交频分多址，单载波频分多址等接入技术的系统。此外，还可以适用于使用LTE系统后续的演进系统，如第五代5G系统等。为清楚起见，这里仅以LTE系统为例进行说明。在LTE系统中，演进的UMTS陆面无线接入(Evolved Universal Terrestrial Radio Access Network，E-UTRAN)作为无线接入网，演进分组核心网(Evolved Packet Core，EPC)作为核心网。
在3GPP标准版本8(Release8，R8)阶段，发展出一种全新的演进网络，其系统架构如图2所示，包括：演进的通用陆地无线接入网(Evolved Universal Terrestrial Radio Access Network，E-UTRAN)、MME、PGW、SGW和归属用户服务器(Home Subscriber Server，HSS)、策略与计费规则功能单元(Policy  and Charging Rules Function，PCRF)、外部分组数据网络(Packet Data Network，PDN)、鉴权授权和计费(Authentication、Authorization和Accounting，AAA)服务器、动态主机配置协议(Dynamic Host Configuration Protocol，DHCP)服务器、陆地无线接入网(Universal Terrestrial Radio Access Network，UTRAN)、全球移动通讯系统/增强型数据速率演进技术无线接入网(Global System for Mobile Communications Enhanced Data Rate for GSM Evolution Radio Access Network，GERAN)、服务通用分组无线服务技术支持节点(Serving General Packet Radio Service Support Node，SGSN)等等。
其中，E-UTRAN用于实现所有与演进网络无线有关的功能。
MME负责控制面的移动性管理，包括用户上下文和移动状态管理，分配用户临时身份标识(Temporary Mobile Subscriber Identity，TMSI)等。
S-GW是3GPP接入网络间的用户面锚点，终止E-TURAN的接口。
P-GW是3GPP接入网络和非3GPP接入网络之间的用户面锚点，和PDN的接口。
HSS用于存储用户签约信息。
MME、S-GW、P-GW和HSS通常作为核心网设备。
当用户设备通过无线空口接入E-UTRAN后，先附着到MME上，MME从HSS获取用户设备(User Equipment，UE)的签约数据和鉴权信息，发起对UE进行鉴权的过程。MME完成鉴权过程后，由用户设备或者MME发起建立用于传输用户数据的承载的过程。在该过程中，MME通知S-GW为用户建立承载，在通知消息中携带P-GW的地址和用户所在的E-UTRAN网络设备的地址信息。S-GW为用户建立从E-UTRAN到P-GW的用于传输用户数据的承载。P-GW将来自外部PDN的下行数据通过承载转发给UE，并将来自UE的上行数据转发给相应的PDN。
为了能兼容已有的UTRAN和GERAN的接入网络。UE可以通过UTRAN或者GERAN和SGSN接入MME，并且可以通过UTRAN/GERAN、SGSN建 立和S-GW之间的通过通用分组无线业务隧道协议(General Packet Radio Service Tunnelling Protocol，GTP)连接。S-GW将GTP隧道转换为相应的连接P-GW的承载，用于传输用户数据。UTRAN也可以建立直接连接S-GW的GTP隧道。
MME成为只处理控制面信令的网络设备，S-GW和P-GW主要负责转发用户面数据。S-GW和P-GW可以合并为一个网络设备，一般统称为网关。
在演进网络中，网关仍然需要保留有大量的接口信令的处理能力。这些接口信令包括：承载接口信令、策略控制与计费(PCC)接口信令、计费接口信令、合法监听接口信令、外部PDN的接口信令(例如，DHCP、AAA等等)的处理功能。
在本发明实施例中，在第一设备与第二设备建立连接，或者第一设备通过第二设备与其他设备或者因特网建立连接时，可以有如下方案：
方案一：第一用户设备可以将其已建立的链路的状态信息，或者对于新建连接的链路需求信息，或者前二者的结合发送给第二设备以便第二设备确定是否能够建立连接。具体地，第一设备确定第一信息，该第一信息包括第一设备的链路状态信息和/或第一设备的链路需求信息；第一用户设备向第二设备发送第一消息，该第一消息携带有第一信息，该第一消息用于指示所述第二设备根据所第一消息为第一设备建立连接。第二设备接收到第一用户设备发送的第一信息后，根据该第一信息确定当第二设备的能力满足所述第一设备的需求时，建立与第一设备的连接，或者作为中继建立第一设备与其他设备或者因特网建立连接。
方案二：第二设备可以将其对于链路状态和/或链路需求的支持情况发送给第一设备，第一设备选择一个最优的第二设备建立连接。具体地，第二设备向第一设备发送第三消息，该第三消息携带有第二信息，该第二信息包括所述第二设备支持的用户设备的指示信息；该指示信息包括支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需 求。第一设备接收至少一个第二设备发送的第三消息，该第三消息携带有第二信息。第一设备根据第二信息选择至少一个第二设备中的一个；向选定的第二设备发送连接建立请求消息，该连接建立请求消息用于指示选定的第二设备为第一设备建立连接为所述第一设备提供服务。第二设备接收第一设备发送的连接建立请求消息；根据所述连接建立请求消息建立其与第一设备的连接，或者作为中继建立第一设备与其他设备或者因特网建立连接。
为便于对本发明实施例的理解，下面将结合附图以具体实施例，以UE以及RUE为例做进一步的解释说明，实施例并不构成对本发明实施例的限定。
图3为本发明方法实施例提供的一种通信方法流程图。在本发明实施例中UE可以将自己的需求和/或状态发送给RUE或网络设备。
具体步骤如下：
S310，UE确定第一信息。其中，第一信息可以包括UE的链路状态信息和/或UE的链路需求信息。
UE存在一个或多个连接，该一个或多个连接中的任意一个可以是前述图1A以及图1B中描述的任意一种连接。UE可以确定上述连接形成的连接的链路状态。
其中，UE的链路状态信息可以用于指示UE已经建立的通信连接的状态的特征信息，包括但不限于下述任意一项或多项：
UE已建立的通信链路的数量；例如，UE每存在一条与网络设备的链接，则通信链路的数量可以增加1，UE每存在一条通过中继设备与网络设备的连接，则通信链路的数据数量也可以增加1；
UE已建立的通信链路的质量，例如，UE存在的通信链路的QoS(Quality of Service，服务质量)，信干燥比等等；
UE已建立的通信链路的类型，例如，第一用户设备直接与网络设备连接，第一用户设备通过中继设备与网络设备连接等等。
在UE进行通信时，也就是UE与网络设备或中继设备进行通信时，或者， UE与RUE通信时，会产生提高数据传输的速率的需求，例如，利用手机或平板笔记本等用户设备在线观看视频时，随着视频的清晰度越来越高，在线观看视频产生的数据流量也越来越大，当现有链路的数据传输速率不足时，会产生卡顿的情况；或者，利用手机或平板笔记本等用户设备等进行视频通话时，同样需要较大的流量，同时视频通话对于实时流量的要求较高，当现有链路的数据传输速率不足时，会产生延迟或卡顿的情况；等等。
UE可以监测上述产生提高数据传输的速率的需求的情况，当出现上述情况时，UE可以通过再建立一条或多条连接，来实现提高数据传输的速率，该一个或多个连接中的任意一个可以是前述图1A以及图1B中描述的任意一种连接。
在UE建立其与网络设备的连接的过程中，UE可以选择通过RUE来与网络设备建立连接。其中RUE最好可以与UE处于不同小区，甚至连接不同的接入网设备，这样UE便可以利用RUE所在小区的资源，进而能够更有效的提高服务质量。用户设备可以确定上述链路需求。
其中，UE的链路需求信息可以用于指示UE对为其提供服务的第二设备的要求，包括但不限于下述任意一项或多项：
UE对需要为其提供服务的网络设备的要求，例如，UE对需要为其提供服务的网络设备的容量要求，或UE仅需要一个愿意为其提供服务的网络设备等等，或UE仅需要一个RUE，并不需要与网络设备连接；
UE对需要为其提供服务的RUE的要求，例如，UE对RUE的中继能力的要求等等；
UE对需要为其提供服务的RUE所在小区的要求，例如，UE仅需要与其处于不同小区的RUE为其提供服务等等；
UE对其与需要为其提供服务的网络设备之间的通信质量的要求，例如，对QoS质量的要求等等；
UE对其与需要为其提供服务的RUE之间的通信质量的要求，例如，对 QoS质量、距离的要求等等；
UE对其与需要为其提供服务的RUE所在小区中的通信质量的要求；
各个需求的优先级；等等。
其中，第一设备的链路需求信息可以根据第一设备当前运行的应用程序对于网络速率的要求来确。例如，视频播放器在播放视频时可以有标清(480P)、高清(720P)以及超清(1080P)等播放模式，相应的，也就不同质量的信号，当视频播放器播放的是标清的视频时，第一设备确定链路需求时，可以要求任意第二设备为其提供服务；当视频播放器播放的是高清时，可以要求处于不同小区的第二设备提供服务；当播放的是超清视频时，可以要求处于不同小区的第二设备，且该第二设备与第一设备之间的通信质量还需要达到一定的要求。
其中，UE选择RUE作为中继设备与网络设备建立连接的过程如下所示。
S320，UE向RUE和/或网络设备发送第一消息。其中，该第一消息携带有第一信息，该第一消息用于指示RUE和/或网络设备根据第一消息为UE建立连接。
其中，第一消息用于指示RUE和/或网络设备根据第一消息为UE建立的连接具体可以包括：
当UE与RUE不存在连接，RUE与网络设备不存在连接时，第一消息可以用于指示RUE和/或网络设备根据第一消息为UE建立RUE与UE的连接以及RUE与网络设备的连接。
或者，
当RUE存在其与网络设备的连接时，第一消息可以用于指示RUE和/或网络设备根据第一消息为UE建立RUE与UE的连接；
或者，
当UE存在其与RUE的连接时，第一消息可以用于指示RUE和/或网络设备根据第一消息为UE建立RUE与网络设备的连接；
或者，
当只需要建立与RUE的连接时，第一消息可以用于指示RUE和/或网络设备根据第一消息为UE建立RUE与UE的连接。
需要说明是的，RUE与UE的连接可以包括前述任意一种D2D通信方式的连接。对于通过PC5接口的连接，依据协议的规定，需要通过与RUE连接的或RUE驻留的网络设备的许可才可以建立连接，所以UE可以向与RUE连接的或RUE驻留的网络设备发送连接建立请求(例如，第一消息)，请求建立RUE与UE的连接；或者，UE可以向RUE发送连接建立请求(例如，第一消息)，RUE在请求与其连接的或其驻留的网络设备建立RUE与UE的连接。
S330A，RUE根据第一信息确定，当RUE的能力满足UE的需求时，建立连接为UE提供服务。
RUE根据第一信息来确定RUE是否满足UE的要求，或者RUE对应的网络设备是否满足UE的要求。
RUE可以根据第一信息确定UE对于新建链路的需求程度，例如，RUE接收多个UE发送的第一信息，那么可以根据各个UE已建立的通信链路的数量确定优先顺序，数量最少的优先级最高；或者，根据各个UE已建立的通信链路的质量确定优先顺序，质量最差的优先级最高；或者，根据各个UE已建立的通信链路的类型确定优先顺序，与网络设备的连接之间中继设备越多的优先级最高；或者，通过前述任意两者或三者的组合确定；等等。
RUE可以根据第一信息确定UE对于已建链路的需求程度。例如，根据各个UE已建立的通信链路的数量确定，数量越多的需求越小；或者，根据各个UE已建立的通信链路的质量确定，质量越差的需求越小；或者，根据各个UE已建立的通信链路的类型确定，与网络设备的连接之间中继设备越多的需求越小；或者，通过前述任意两者或三者的组合确定；等等。
RUE在建立连接为UE提供服务时，可以为新建链路的需求程度最高的 UE建立连接提供服务，也可以根据UE对于已建链路的需求程度，断开某个已建但需求不高的链路对应的连接，为新建链路的需求程度高的UE建立连接提供服务，以便确定更多的资源为对新建链路的需求程度高的UE提供服务。RUE还可以根据第一信息确定其是否满足UE的要求，尤其是第一信息中明确指出的要求。例如，根据UE的链路需求信息来判断。
应该知道的是，RUE可以结合上述信息确定是否能够为UE提供服务。
在RUE接收到第一信息后，根据第一信息建立连接可以有如下方式：
方式一
步骤A11，网络设备向RUE发送第二消息，该第二消息携带有第二信息，该第二信息包括第一网络设备是支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求。
网络设备可以将支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求主动发送给RUE，例如，通过广播系统信息的方式，广播的频率可以根据实际需要而定，等等。
其中，网络设备支持的用户设备的链路状态，或者不支持的用户设备的链路状态包括下述任意一项或多项：
对UE已建立的通信链路的数量的要求；
对UE已建立的通信链路的质量的要求；
对UE已建立的通信链路的类型的要求；等等。
网络设备支持的用户设备的链路需求，或者不支持的用户设备的链路需求包括下述任意一项或多项：
能够满足的UE对需要为其提供服务的网络设备的要求；
能够满足的UE对需要为其提供服务的RUE的要求；
能够满足的UE对需要为其提供服务的RUE所在小区的要求；
能够满足的UE对其与需要为其提供服务的网络设备之间的通信质量的要求；
能够满足的UE对其与需要为其提供服务的RUE之间的通信质量的要求；
能够满足的UE对其与需要为其提供服务的RUE所在小区中的通信质量的要求；等等。
上述信息网络设备可以根据自身的实际情况确定，也可以由网络设备预先定义。
步骤A12，RUE接收网络设备发送的第二信息。
步骤A13，RUE根据第二信息，第一信息，以及自身能够支持的特定链路状态和/或特定链路需求的情况，确定RUE能否建立第一连接为UE提供服务。
其中，RUE可以根据第二信息以及第一信息，确定网络设备是否满足为UE建立连接的条件。
RUE可以根据第一信息以及自身能够支持的特定链路状态和/或特定链路需求的情况，确定RUE是否满足为UE建立连接的条件。
步骤A14，当RUE满足建立连接的条件时，RUE建立连接。其中，该连接可以包括UE与第二用设备的连接，以及RUE与第一网络设备的连接。
方式二
与方式一不同的步骤在于第二信息的获取上。RUE可以首先向网络设备发送第二信息获取请求，网络设备在接收到RUE发送的第二信息获取请求后，再将第二信息发送给RUE。
方式三
步骤A21，RUE在接收到第一信息后，向网络设备发送请求消息，该请求消息携带第一信息以及自身能够支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求。
步骤A22，网络设备根据自身能够支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求，RUE能够支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链 路需求，以及第一信息，确定是否满足为UE建立第一连接的条件。
其中，网络设备可以根据自身能够支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求以及第一信息，确定网络设备是否满足为UE建立连接的条件。
网络设备可以根据第一信息以及RUE能够支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求，确定RUE是否满足为UE建立连接的条件。
步骤A23，当满足建立连接的条件时，网络设备建立连接。
方式四
与前述方式三不同的步骤在于RUE是否满足为UE建立连接的条件的确定上。RUE可以自己进行判断，当满足时，将第一信息以及判断结果发送给网络设备。网络设备确定网络设备是否满足为UE建立连接的条件，当满足时建立连接。
方式五
与前述方式三以及方式四的不同的步骤在于连接的建立上。网络设备在确定RUE满足为UE建立连接的条件以及网络设备满足为UE建立连接的条件时，将结果发送给RUE，由RUE发起连接的建立。或者，网络设备在确定其满足为UE建立第一连接的条件时，将结果发送给RUE，由RUE确定RUE满足为UE建立连接的条件并发起连接的建立。
S330B，网络设备根据第一消息为UE建立连接。
其中，在网络设备接收到第一消息后，根据第一消息中携带的第一信息，选择已接入的网络设备或驻留的网络设备的多个RUE中的一个，通过选定的RUE建立连接为UE提供服务，其中，这里的建立连接主要是建立选定的RUE与UE之间的连接。另外，选择RUE的条件，可以是根据UE与RUE的距离，UE与RUE是否处于相邻小区，以及RUE的中继能力等信息，等等来进行判断，可以选择最优的一个RUE来为UE提供服务。这里的RUE的中继能力等 信息可以在RUE接入时获取。
应该知道的是，RUE的中继能力可以是指，RUE能够为UE承担的最大流量，或者，RUE作为中继设备能够提供的数据传输的最大速率，等等能够体现RUE数据传输能力的数据信息。
UE确定RUE有能力为其提供中继服务，且RUE对应的网络设备允许RUE为UE提供中继服务时，UE可以通过RUE建立与网络设备的连接，通过该链接来分担一部分数据传输业务，能有效的提高数据的传输速率，且降低运营成本提高了用户体验。
下面结合附图，对本发明实施例做进一步地介绍。
如图4所示。在本发明实施例中，RUE和/或网络设备可以向UE发送自己支持的链路状态和/或链路需求，UE以此来判断需要跟那个RUE或网络设备建立的连接。具体步骤如下：
S410A，RUE向UE发送第三消息。其中，该第三消息中携带有第二信息，该第二信息包括RUE和/或网络设备是否支持为特定链路状态和/或特定链路需求的用户设备提供服务的指示信息。
S410B，网络设备向UE发送的第三消息。其中，该第三消息中携带有第二信息，该第二信息包括RUE和/或网络设备支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求。
第三消息还可以携带网络设备的通信能力，例如，第二信息中可以携带网络设备的剩余资源或已占用资源，或者被RUE占用的资源的使用情况等信息。这样，可以有利于UE基于该信息确定是否选择RUE或者网络设备来进行通信。
应该知道的是，网络设备支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求还可以包括但不限于，网络设备是否支持为RUE的邻小区的UE提供服务；网络设备是否支持为接入的网络设备以外的网络设备对应的UE提供服务；等等。
其中，RUE与网络设备存在连接，网络设备为RUE分配小区，RUE可以将其所属的小区的标识进行广播，UE可以依据该小区的标识判断是否与自己处于同一小区，或者同一网络设备等等，以便UE能够选择更合适的RUE。
在第二信息中还可以携带为RUE提供中继服务的意愿。具体地，第二信息中可以携带其为邻小区的UE提供中继服务的意愿，和/或其为与其他网络设备连接的UE提供中继服务的意愿。
S420，UE接收至少一个RUE或至少一个网络设备发送的第三消息。其中，该第三消息携带有第二信息，该第二信息包括RUE和/或网络设备支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求。
另外，在本发明实施例具体实施过程中，第二信息的可以包括如下获取方式：
其中，第二信息可以包括两部分，第一部分为RUE支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求；第二部分为与RUE连接、RUE驻留的或者与RUE存在建立连接条件的网络设备支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求。
RUE可以确定自己支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求也就是第二信息的第一部分；同理，网络设备可以确定自己支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求也就是第二信息的第二部分。
方式一，网络设备将第二信息的第二部分发送给RUE；RUE结合第二信息的第一部分，得到第二信息并将其发送给UE。
方式二，RUE在接入网络设备时，将第二信息的第一部分发送给网络设备；网络设备结合第二信息的第二部分，得到第二信心，并将第二信息发送给UE。
方式三，RUE将第二信息的第一部分发送给UE，并携带第二用户接入或驻留的网络设备的标识；UE向网络设备请求第二信息的第二部分；网络设备将第二信息的第二部分发送给UE。
方式四，网络设备将第二信息的第二部分发送给UE；RUE将第二信息的第一部分发送给UE，并携带第二用户接入或驻留的网络设备的标识；UE根据RUE发送的网络设备的标识确定其对应的第二信息的第二部分。
S430，UE根据第二信息选择至少一个RUE中的一个和/或至少一个第一网络设备中的一个。
UE可以接收到一个或多个RUE或一个或多个网络设备发送的第二信息。UE可以基于各个RUE或网络设备对应的第二信息选择最优的RUE或网络设备作为来为其提供中继服务。例如，UE可以选择处于邻小区，且中继能力最强的的RUE。另外，还可以考虑各个RUE与UE之间进行通信的信号质量，例如，选择RUE的优先级别依次是：是否处于邻小区，与UE之间的信号质量是否最强，中继能力是否最强。或者可以根据是否处于邻小区，与UE之间的信号质量是否最强，以及中继能力是否最强，等信息进行综合评分，根据该综合评分选择RUE，进一步地，还可以针对不同的优先级设置权重，得到综合评分。
S440，UE向选定的RUE或选定的网络设备发送连接建立请求消息。其中，该连接建立请求消息用于指示，选定的RUE或选定的网络设备为UE建立连接，该连接为UE通过RUE与网络设备的连接。选定的RUE或选定的网络设备在接收到UE发送的连接建立请求消息后，建立UE通过RUE与网络设备的连接。
其中，在本发明实施例中，如前述图3所示的实施例中所描述的，UE发送的连接建立请求消息还可以携带自己的链路需求和/或链路状态，以便RUE或网络设备进行进一步判断，是否支持为该UE提供服务。
另外，在图3或图4所示的实施例中，RUE或者网络设备可以根据UE 的链路状态信息和/或UE的链路需求信息来确定需要建立的连接对于UE的必要性；或者RUE或者网络设备已经为某一UE提供服务，根据该某一UE的链路状态信息和/或某一UE的链路需求信息，RUE或者网络设备可以确定一个连接对于某一UE的必要性。例如，在具体实施过程中，RUE在接收到UE发送的连接建立请求后，根据UE的链路状态信息和/或UE的链路需求信息，确定出需要建立的连接对于UE获取网络服务来说影响较大(例如，UE现存的其他连接的QoS质量都比较差)；此时，RUE存在一条其他UE的连接，且该RUE为其他UE提供中继服务，RUE通过其他UE的链路状态信息和/或其他UE的链路需求信息确定出，该RUE与其他UE的连接，对于其他UE来说是不必要的(例如，其他UE现存的其他连接的QoS质量，有至少一条较好)，则，RUE可以断开与其他UE的连接，建立其与UE的连接，为UE提供中继服务。需要说明是的，QoS质量是较差还是较好，可以根据具体的服务要求来确定，例如，能够提供流畅的在线视频服务认为是较好，不能则认为是较差；或者，也可以根据具体的QoS质量指数来确定，QoS质量指数大于阈值则认为较好，小于阈值则认为较差。
本发明实施例在具体实施过程中，在前述图3、图4所示的实施例的基础上，UE与RUE在进行通信过程中，UE存在与第二网络设备的连接，RUE存在与第一网络设备的连接或者其满足与第一网络设备建立连接的条件，或者RUE驻留在第一网络设备。若UE与RUE通过PC5接口建立连接，则需要利用第二网络设备以及第一网络设备分配的资源，比如，UE不在第一网络设备的覆盖范围内，第一网络设备配置给RUE用于D2D通信的资源，无论是基于配置的，还是让RUE基于一个池区(pool)选择，都有可能与第二网络设备配置给UE用于与网络设备的连接的资源或者UE与其他RUE用于D2D通信的资源冲突。为了减少资源上的冲突，具体还可以包括如下步骤：
S510，UE确定RUE的信息以及第一网络设备的信息；并将RUE的信息第一网络设备的信息发送给第二网络设备。
其中，RUE的信息可以包括RUE的标识、RUE驻留小区的标识等等。第一网络设备的信息可以包括第一网络设备的标识等等。其中，上述信息UE可以通过设备发现的过程接收得到。
S520，第二网络设备根据接收UE发送的RUE的信息和/或第一网络设备的信息，可以根据该RUE的信息和/或第一网络设备的信息指示第一网络设备分配给RUE用于RUE与UE进行D2D通信的资源。
其中，第一网络设备和第二网络设备可以通过协商以降低资源冲突的可能，例如，第二网络设备可以根据UE发送的第一网络设备的信息，确定第一网络设备并指示第一网络设备，第二网络设备用于UE传输数据的D2D资源信息，第一网络设备基于上述信息，分配用于RUE的D2D通信资源。
在本发明实施例中步骤S520可替换为：
A：第二网络设备与第一网络设备之间交互如下信息：
第二网络设备分配给UE用于D2D通信的资源；
第一网络设备分配给RUE用于D2D通信的资源。
B：第二网络设备基于第一网络设备分配给RUE用于D2D通信的资源，分配UE用于RUE与UE进行通信的资源，以避开第一网络设备分配给RUE用于D2D通信的资源。
需要说明的是，利用图3、图4以及图5的结合所构成的方案也可以实现多连接通信。例如，网络设备发送其支持的链路状态和/或链路需求，RUE发送其支持的链路状态和/或链路需求，两者可以互不限制。例如，在图4所示的实施例中，RUE可以在向UE发送自己支持的链路状态和/或链路需求之前，先接收网络设备发送的支持的链路状态和/或链路需求，只有在网络设备支持的情况下，再确定自己是否支持，和/或者向UE发送自己支持的链路状态和/或链路需求；当然，RUE也可以不确定网络设备的支持情况，仅将自己的支持情况发送给UE，此时，UE需要接收网络设备发送的支持的链路状态和/或链路需求，进一步确定RUE以及RUE对应的网络设备是否支持为UE提供服 务；或者，RUE发送的信息里面，包含了RUE和网络设备两者支持的链路状态和/或链路需求(此时，如图3所描述的方案，RUE可以接收或主动请求网络设备的支持的链路状态和/或链路需求)。再例如，在图3所示的实施例中，UE在向RUE或网络设备发送自己的需求和/或状态之前，还可以接收RUE或网络设备发送支持的链路状态和/或链路需求，其中，具体的接收过程可以采用图4所示的实施例中的描述方案，UE可以根据RUE或网络设备发送支持的链路状态和/或链路需求判断能够为UE提供服务的RUE或网络设备，进而与其建立连接。在建立上述连接时，UE可以仅发送一个连接建立请求，请求RUE或网络设备为其提供服务；也可以是，UE在连接建立请求中携带自己的需求和/或状态。应该知道的是，前述技术方案仅为举例，其他利用图3、图4以及图5的结合所构成的方案也在本发明保护的范围内，不再赘述。
下面结合具体示例以及附图6，对本发明作进一步地的介绍。
如图6所示，该实例具体可以包括如下步骤：
S610，UE在监测到产生提升数据传输速率的需求时，UE向RUE发送第一请求消息，该第一请求消息用于请求RUE作为中继设备与网络设备连接。其中，该第一请求消息可以包括UE需要RUE为其提供中继服务的需求，还可以包括UE需要一个与UE处于不同小区的RUE来为其提供中继服务。
S620，RUE接收UE发送的第一请求消息后，向与RUE连接的eNB发送第二请求消息，该第二请求消息用于请求RUE为UE提供中继服务。
例如，RUE可以向eNB发送第二请求，该请求用于请求RUE为处于相邻小区的UE提供中继服务，其中，RUE可以通过PRACH(Physical Random Access Channel，物理随机接入信道)随机接入过程中的preamble或Msg3携带，或者通过RRC连接建立过程中的任意消息携带，或者在RRC连接建立之后的用专用消息中来携带第二请求消息以及eNB的指示信息。
S630，第二基站接收RUE发送的第二请求消息，并返回响应消息，该响应消息携带有是否支持为UE提供中继服务的指示信息。
S640，RUE向UE返回响应消息，该响应消息携带有否支持为UE提供中继服务的指示信息。
S650，UE接收RUE发送的响应消息，根据该响应中携带的信息判断，当RUE的以及RUE对应的eNB支持为UE提供中继服务时，UE增加通过RUE与eNB的连接。
图7示出了上述实施例中所涉及的第一用户设备的一种可能的设计结构的简化示意图。所述第一用户设备可以包括发射器701，接收器702，控制器/处理器703，存储器704，调制解调处理器705，还可以包括WIFI和/或蓝牙模块710，以及电源711等。其中，发射器701以及接收器702可以集成为收发器。
发射器701调节(例如，模拟转换、滤波、放大和上变频等)该输出采样并生成上行链路信号，该上行链路信号经由天线发射给上述实施例中所述的第二设备(例如，第二用户设备或者第一网络设备)。在下行链路上，天线接收上述实施例中第二设备发射的下行链路信号。接收器702调节(例如，滤波、放大、下变频以及数字化等)从天线接收的信号并提供输入采样。在调制解调处理器705中，编码器706接收要在上行链路上发送的业务数据和信令消息，并对业务数据和信令消息进行处理(例如，格式化、编码和交织)。调制器707进一步处理(例如，符号映射和调制)编码后的业务数据和信令消息并提供输出采样。解调器709处理(例如，解调)该输入采样并提供符号估计。解码器708处理(例如，解交织和解码)该符号估计并提供发送给第一用户设备的已解码的数据和信令消息。编码器706、调制器707、解调器709和解码器708可以由合成的调制解调处理器705来实现。这些单元根据无线接入网采用的无线接入技术(例如，LTE及其他演进系统的接入技术)来进行处理。
WIFI和/或蓝牙模块710，可以包括WIFI和/或蓝牙信号的接收器以及发送器，通过该接收器以及发送器可以实现与其他具有WIFI和/或蓝牙功 能的设备进行数据传输，例如第二用户设备。
其中，在本发明实施例中，若与网络设备的直接交互的任务全部都由第二用户设备代为执行，那么，第一用户设备也可以不包括发射器701，接收器702，调制解调处理器705，以及调制解调处理器705的内部构件。
电源711(比如电池)负责给各个部件供电，优选的，电源可以通过电源管理系统与控制器/处理器703逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗等功能。
控制器/处理器703对第一用户设备的动作进行控制管理，用于执行上述实施例中由第一用户设备进行的处理。例如用于控制用户设备执行第二任务和/或本发明所描述的技术的其他过程。作为示例，控制器/处理器703用于还执行图3至图6中涉及第一用户设备的处理过程和/或用于本申请所描述的技术的其他过程。存储器704用于存储用于第一用户设备的程序代码和数据。
图8示出了上述实施例中所涉及的第二用户设备的一种可能的设计结构的简化示意图。所述第二用户设备包括发射器801，接收器802，控制器/处理器803，存储器804，调制解调处理器805，还可以包括WIFI和/或蓝牙模块810，以及电源811等。
发射器801调节(例如，模拟转换、滤波、放大和上变频等)该输出采样并生成链路信号，该链路信号经由天线发射给上述实施例中所述的网络设备或第一用户设备。天线接收上述实施例中网络设备发射的下行链路信号。接收器802调节(例如，滤波、放大、下变频以及数字化等)从天线接收的信号并提供输入采样。在调制解调处理器805中，编码器806接收要在链路上发送的业务数据和信令消息，并对业务数据和信令消息进行处理(例如，格式化、编码和交织)。调制器807进一步处理(例如，符号映射和调制)编码后的业务数据和信令消息并提供输出采样。解调器1209处理(例如，解调)该输入采样并提供符号估计。解码器808处理(例如，解交织和 解码)该符号估计并提供发送给第二用户设备的已解码的数据和信令消息。编码器806、调制器807、解调器809和解码器808可以由合成的调制解调处理器805来实现。这些单元根据无线接入网采用的无线接入技术(例如，LTE及其他演进系统的接入技术)来进行处理。
WIFI和/或蓝牙模块810，可以包括WIFI和/或蓝牙信号的接收器以及发送器，通过该接收器以及发送器可以实现与其他具有WIFI和/或蓝牙功能的设备进行数据传输，例如第一用户设备。
电源811(比如电池)负责给各个部件供电，优选的，电源可以通过电源管理系统与控制器/处理器803逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗等功能。
控制器/处理器803对第二用户设备的动作进行控制管理，用于执行上述实施例中由第二用户设备进行的处理。例如用于控制用户设备执行第一任务和/或本发明所描述的技术的其他过程。作为示例，控制器/处理器803用于还执行图3至图6中涉及第二用户设备的处理过程和/或用于本申请所描述的技术的其他过程。存储器804用于存储用于第二用户设备的程序代码和数据。
图9示出了上述实施例中所涉及的第一网设备的一种可能的结构示意图。
其中，第一网络设备可以是接入网设备，包括发射器(发送器)/接收器901,控制器/处理器902，存储器903以及通信单元904。所述发射器/接收器901用于支持接入网设备与上述实施例中的所述的用户设备之间收发信息，以及支持所述用户设备与其他用户设备之间进行无线电通信。所述控制器/处理器902执行各种用于与UE通信的功能。在上行链路，来自所述UE的上行链路信号经由天线接收，由接收器901进行调解，并进一步由控制器/处理器902进行处理来恢复UE所发送到业务数据和信令信息。在下行链路上，业务数据和信令消息由控制器/处理器902进行处理，并由发射器901进行调解来产生下行链路信号，并经由天线发射给UE。控制器/处理器902还执行图3至图6 中涉及接入网设备的处理过程和/或用于本申请所描述的技术的其他过程。存储器903用于存储基站的程序代码和数据。通信单元904用于支持接入网设备与其他网络实体进行通信。例如,用于支持接入网设备与图2中示出的其他通信网络实体间进行通信，例如位于核心网EPC中的MME，SGW和或PGW等。
可以理解的是，图9仅仅示出了接入网设备的简化设计。在实际应用中，基站可以包含任意数量的发射器(发送器)，接收器，处理器，控制器，存储器，通信单元等，而所有可以实现本发明的接入网设备都在本发明的保护范围之内。
另外，第一网络设备可以是核心网设备，该核心网设备可以不包含发射器(发送器)/接收器901。
图10示出了上述实施例中所涉及的第二网设备的一种可能的结构示意图。
其中，第二网络设备可以是接入网设备，包括发射器(发送器)/接收器1001,控制器/处理器1002，存储器1003以及通信单元1004。所述发射器/接收器1001用于支持接入网设备与上述实施例中的所述的用户设备之间收发信息，以及支持所述用户设备与其他用户设备之间进行无线电通信。所述控制器/处理器1002执行各种用于与UE通信的功能。在上行链路，来自所述UE的上行链路信号经由天线接收，由接收器1001进行调解，并进一步由控制器/处理器1002进行处理来恢复UE所发送到业务数据和信令信息。在下行链路上，业务数据和信令消息由控制器/处理器1002进行处理，并由发射器1001进行调解来产生下行链路信号，并经由天线发射给UE。控制器/处理器1002还执行图3至图6中涉及接入网设备的处理过程和/或用于本申请所描述的技术的其他过程。存储器1003用于存储基站的程序代码和数据。通信单元1004用于支持接入网设备与其他网络实体进行通信。例如,用于支持接入网设备与 图2中示出的其他通信网络实体间进行通信，例如位于核心网EPC中的MME，SGW和或PGW等。可以理解的是，图10仅仅示出了接入网设备的简化设计。在实际应用中，基站可以包含任意数量的发射器(发送器)，接收器，处理器，控制器，存储器，通信单元等，而所有可以实现本发明的接入网设备都在本发明的保护范围之内。
另外，第二网络设备可以是核心网设备，该核心网设备可以不包含发射器(发送器)/接收器1001。
图11为本发明实施例提供的一种虚拟通信装置。该装置具体包括：
处理模块1101，用于确定第一信息，第一信息包括第一设备的链路状态信息和/或第一设备的链路需求信息；发送模块1102，用于向第二设备发送第一消息，第一消息携带有第一信息，第一消息用于指示第二设备根据第一消息为第一设备建立连接。
可选地，第一设备存在与第二网络设备的连接，处理模块1101还用于，确定第二用户设备的信息以及第一网络设备的信息；发送模块1102，还用于，将第二用户设备的信息以及第一网络设备的信息发送给第二网络设备，以使得第二网络设备指示第一网络设备分配给第二用户设备用于第二用户设备与第一设备进行通信的资源，或者第二网络设备基于第一网络设备的信息和/或第二用户设备的信息，分配第一设备用于第二用户设备与第一设备进行通信的资源。
可选地，接收模块1103还用于，接收第二设备发送的第二消息，第二消息携带有第二信息，第二信息包括第二设备支持的用户设备的指示信息；指示信息包括支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求。
具体地，处理模块1101还用于，第一设备根据第二消息确定第二设备支持为第一用户设备提供服务时，控制收发模块向第二设备发送第一消息。
图12为本发明实施例提供的一种虚拟通信装置。该装置具体包括：
接收模块1201，用于接收第一设备发送的第一消息，第一消息携带有第一信息，第一信息包括第一设备的链路状态信息和/或链路需求信息，第一消息用于指示第二用户设备根据第一消息为第一设备建立连接；处理模块1202，用于根据第一信息确定，当第二用户设备的能力满足第一设备的需求时，建立连接为第一设备提供服务。
可选地，第二设备包括第二用户设备和第一网络设备，接收模块1201还用于，接收第一网络设备发送的第二消息，第二消息携带有第二信息，第二信息包括第一网络设备支持的用户设备的指示信息；指示信息包括支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求；处理模块1202还用于，当第一网络设备支持为第一设备提供服务，且第二用户设备的能力满足第一设备的需求时，建立连接为第一设备提供服务。
可选地，第一设备存在与第二网络设备的连接，当第二设备为第一网络设备时，接收模块1201还用于，接收第二网络设备发送的指示消息，指示消息用于指示第一网络设备分配给第二用户设备用于第二用户设备与第一设备进行通信的资源；处理模块1202还用于，基于指示消息分配给第二用户设备用于第二用户设备与第一设备进行通信的资源。
可选地，第一设备存在与第二网络设备的连接，当第二设备为第一网络设备时，发送模块1203还用于，第一网络设备将其分配给第二用户设备的资源信息发送给第二网络设备；以使得第二网络设备基于第一网络设备分配给第二用户设备的资源信息为第一设备分配资源。
图13为本发明实施例提供的一种虚拟通信装置。该装置具体包括：
接收模块1301，用于接收至少一个第二用户设备或至少一个第一网络设备发送的第三消息，第三消息携带有第二信息，第二信息包括第二设备支持的用户设备的指示信息；指示信息包括支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求；处理模块1302，用 于根据第二信息选择至少一个第二设备中的一个；发送模块1303，用于向选定的第二设备发送连接建立请求消息，连接建立请求消息用于指示选定的第二设备为第一设备建立连接为第一设备提供服务。
图14为本发明实施例提供的一种虚拟通信装置。该装置具体包括：
发送模块1401，用于向第一设备发送第三消息，第三消息携带有第二信息，第二信息包括第二设备支持的用户设备的指示信息；指示信息包括支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求；接收模块1402，接收第一设备依据第三消息发送的连接建立请求消息，连接建立请求消息用于指示，第二设备为第一设备建立连接；处理模块1403，用于根据连接建立请求消息建立连接为第一设备提供服务。
可选地，第二设备包括第二用户设备和第一网络设备，接收模块1402还用于，第二用户设备接收第一网络设备发送的第四消息，第四消息携带有第一网络设备支持的用户设备的指示信息。
可选地，第二设备包括第二用户设备和第一网络设备，当第二设备为第一网络设备时，发送模块1401还用于，向第二用户设备发送第三消息，第三消息携带有第二信息，第二信息包括第一网络设备是否支持为特定链路状态和/或特定链路需求的用户设备提供服务的指示信息；收发模块还用于，接收第二用户设备依据第三消息发送的连接建立请求消息，连接建立请求消息用于指示，第一网络设备为第一设备建立连接；处理模块还用于，根据连接建立请求建立连接。
专业人员应该还可以进一步意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为 超出本发明的范围。
结合本文中所公开的实施例描述的方法或算法的步骤可以用硬件、处理器执行的软件模块，或者二者的结合来实施。软件模块可以置于随机存储器(RAM)、内存、只读存储器(ROM)、电可编程ROM、电可擦除可编程ROM、寄存器、硬盘、可移动磁盘、CD-ROM、或技术领域内所公知的任意其它形式的存储介质中。
以上所述的具体实施方式，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施方式而已，并不用于限定本发明的保护范围，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (37)

  1. 一种通信方法，其特征在于，包括：
    第一设备确定第一信息，所述第一信息包括第一设备的链路状态信息和/或第一设备的链路需求信息，所述第一设备为第一用户设备；
    所述第一用户设备向第二设备发送第一消息，所述第一消息携带有所述第一信息，所述第一消息用于指示所述第二设备根据所述第一信息为所述第一设备建立连接。
  2. 根据权利要求1所述的方法，其特征在于，所述链路状态信息包括下述任意一项或多项：
    所述第一设备已建立的通信链路的数量；
    所述第一设备已建立的通信链路的服务质量；
    所述第一设备已建立的通信链路的类型。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第二设备包括下述一项或多项：
    第二用户设备、第一网络设备。
  4. 根据权利要求3所述的方法，其特征在于，所述链路需求信息包括下述任意一项或多项：
    所述第一设备对需要为其提供服务的网络设备的要求；
    所述第一设备对需要为其提供服务的第二用户设备的要求；
    所述第一设备对需要为其提供服务的第二用户设备所在小区的要求；
    所述第一设备对其与需要为其提供服务的网络设备之间的通信质量的要求；
    所述第一设备对其与需要为其提供服务的第二用户设备之间的通信质量的要求；
    所述第一设备对其与需要为其提供服务的第二用户设备所在小区中的通信质量的要求。
  5. 根据权利要求3或4所述的方法，其特征在于，所述第一消息用于指示所述第二设备根据所述第一消息为所述第一用户设备建立连接包括：
    所述第一消息用于指示所述第二用户设备和/或所述第一网络设备根据所述第一消息为所述第一用户设备建立所述第二用户设备与所述第一用户设备的连接以及所述第二用户设备与第一网络设备的连接；
    或者，
    当所述第二用户设备存在其与所述第一网络设备的连接时，所述第一消息用于指示所述第二用户设备和/或所述第一网络设备根据所述第一消息为所述第一用户设备建立所述第二用户设备与所述第一用户设备的连接；
    或者，
    当所述第一用户设备存在其与第二用户设备的连接时，所述第一消息用于指示所述第二用户设备和/或所述第一网络设备根据所述第一消息为所述第一用户设备建立所述第二用户设备与第一网络设备的连接；
    或者，
    所述第一消息用于指示所述第二用户设备和/或所述第一网络设备根据所述第一消息为所述第一用户设备建立所述第二用户设备与所述第一用户设备的连接。
  6. 根据权利要求5所述的方法，其特征在于，所述第一设备存在与第二网络设备的连接，所述方法还包括：
    所述第一设备确定所述第二用户设备的信息以及第一网络设备的信息；
    所述第一设备将所述第二用户设备的信息以及所述第一网络设备的信息发送给所述第二网络设备，以使得所述第二网络设备指示所述第一网络设备分配给所述第二用户设备用于所述第二用户设备与所述第一设备进行通信的资源，或者所述第二网络设备基于所述第一网络设备的信息和/或所述第二用户设备的信息，分配所述第一设备用于所述第二用户设备与所述第一设备进行通信的资源。
  7. 根据权利要求6所述的方法，其特征在于，所述第二网络设备与所述第一网络设备之间交互所述第二网络设备分配给所述第一设备的资源以及所述第一网络设备分配给所述第二用户设备的资源。
  8. 根据权利要求1所述的方法，其特征在于，所述第一设备向第二设备发送第一消息之前还包括：
    所述第一设备接收所述第二设备发送的第二消息，所述第二消息携带有第二信息，所述第二信息包括所述第二设备支持的用户设备的指示信息；所述指示信息包括支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求。
  9. 根据权利要求8所述的方法，其特征在于，所述第一设备向第二设备发送第一消息，具体为：
    所述第一设备根据所述第二消息确定所述第二设备支持为所述第一用户设备提供服务时，向所述第二设备发送第一消息。
  10. 一种通信方法，其特征在于，包括：
    第二设备接收第一设备发送的第一消息，所述第一消息携带有第一信息，所述第一信息包括所述第一设备的链路状态信息和/或链路需求信息，所述第一消息用于指示所述第二用户设备根据所述第一消息为所述第一设备建立连接；
    所述第二设备根据所述第一信息确定，当所述第二设备的能力满足所述第一设备的需求时，建立连接为所述第一设备提供服务。
  11. 根据权利要求10所述的方法，其特征在于，所述第二设备包括第二用户设备和第一网络设备，所述方法还包括：
    所述第二用户设备接收第一网络设备发送的第二消息，所述第二消息携带有第二信息，所述第二信息包括所述第一网络设备支持的用户设备的指示信息；所述指示信息包括支持的用户设备的链路状态和/或链路需求，或者不 支持的用户设备的链路状态和/或链路需求；
    当所述第一网络设备支持为所述第一设备提供服务，且所述第二用户设备的能力满足所述第一设备的需求时，所述第二用户设备建立所述连接为所述第一设备提供服务。
  12. 根据权利要求10或11所述的方法，其特征在于，所述第一设备存在与第二网络设备的连接，所述方法还包括：
    所述第一网络设备接收所述第二网络设备发送的指示消息，所述指示消息用于指示所述第一网络设备分配给所述第二用户设备用于所述第二用户设备与所述第一设备进行通信的资源；
    所述第一网络设备基于所述指示消息分配给所述第二用户设备用于所述第二用户设备与所述第一设备进行通信的资源。
  13. 根据权利要求10或11所述的方法，其特征在于，所述第一设备存在与第二网络设备的连接，所述方法还包括：
    所述第一网络设备将其分配给第二用户设备的资源信息发送给所述第二网络设备；以使得所述第二网络设备基于所述第一网络设备分配给第二用户设备的资源信息为所述第一设备分配资源。
  14. 一种通信方法，其特征在于，包括：
    第一设备接收至少一个第二设备发送的第三消息，所述第三消息携带有第二信息，所述第二信息包括所述第二设备支持的用户设备的指示信息；所述指示信息包括支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求；
    所述第一设备根据所述第二信息选择所述至少一个第二设备中的一个；
    所述第一设备向选定的第二设备发送连接建立请求消息，所述连接建立请求消息用于指示所述选定的第二设备为所述第一设备建立连接为所述第一设备提供服务。
  15. 根据权利要求14所述的方法，其特征在于，所述第二设备包括下述一项或多项：
    第二用户设备、第一网络设备。
  16. 根据权利要求15所述的方法，其特征在于，所述指示信息包括下述任意一项或多项：
    对所述第一设备已建立的通信链路的数量的要求；
    对所述第一设备已建立的通信链路的质量的要求；
    对所述第一设备已建立的通信链路的类型的要求；能够满足的所述第一设备对需要为其提供服务的网络设备的要求；
    能够满足的所述第一设备对需要为其提供服务的第二用户设备的要求；
    能够满足的所述第一设备对需要为其提供服务的第二用户设备所在小区的要求；
    能够满足的所述第一设备对其与需要为其提供服务的网络设备之间的通信质量的要求；
    能够满足的所述第一设备对其与需要为其提供服务的第二用户设备之间的通信质量的要求；
    能够满足的所述第一设备对其与需要为其提供服务的第二用户设备所在小区中的通信质量的要求。
  17. 一种通信方法，其特征在于，包括：
    第二设备向第一设备发送第三消息，所述第三消息携带有第二信息，所述第二信息包括所述第二设备支持的用户设备的指示信息；所述指示信息包括支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求；
    所述第二设备接收所述第一设备依据所述第三消息发送的连接建立请求消息，所述连接建立请求消息用于指示，所述第二设备为所述第一设备建立 连接；
    所述第二设备根据所述连接建立请求消息建立连接为所述第一设备提供服务。
  18. 根据权利要求17所述的方法，其特征在于，所述第二设备包括第二用户设备和第一网络设备，所述方法还包括：
    所述第二用户设备接收所述第一网络设备发送的第四消息，所述第四消息携带有所述第一网络设备支持的用户设备的指示信息。
  19. 根据权利要求17所述的方法，其特征在于，所述第二设备包括第二用户设备和第一网络设备，所述方法还包括：第一网络设备向第二用户设备发送第三消息，所述第三消息携带有第二信息，所述第二信息包括所述第一网络设备是否支持为特定链路状态和/或特定链路需求的用户设备提供服务的指示信息；
    所述第一网络设备接收所述第二用户设备依据所述第三消息发送的连接建立请求消息，所述连接建立请求消息用于指示，所述第一网络设备为所述第一设备建立连接；
    所述第一网络设备根据所述连接建立请求建立连接。
  20. 一种通信设备，其特征在于，所述设备为用户设备，包括：
    处理器，用于确定第一信息，所述第一信息包括第一设备的链路状态信息和/或第一设备的链路需求信息；
    收发器，用于向第二设备发送第一消息，所述第一消息携带有所述第一信息，所述第一消息用于指示所述第二设备根据所述第一消息为所述第一设备建立连接。
  21. 根据权利要求20所述的设备，其特征在于，所述链路状态信息包括下述任意一项或多项：
    所述第一设备已建立的通信链路的数量；
    所述第一设备已建立的通信链路的服务质量；
    所述第一设备已建立的通信链路的类型。
  22. 根据权利要求20或21所述的设备，其特征在于，所述第二设备包括下述一项或多项：
    第二用户设备、第一网络设备。
  23. 根据权利要求22所述的设备，其特征在于，所述链路需求信息包括下述任意一项或多项：
    所述第一设备对需要为其提供服务的网络设备的要求；
    所述第一设备对需要为其提供服务的第二用户设备的要求；
    所述第一设备对需要为其提供服务的第二用户设备所在小区的要求；
    所述第一设备对其与需要为其提供服务的网络设备之间的通信质量的要求；
    所述第一设备对其与需要为其提供服务的第二用户设备之间的通信质量的要求；
    所述第一设备对其与需要为其提供服务的第二用户设备所在小区中的通信质量的要求。
  24. 根据权利要求22或23所述的设备，其特征在于，所述第一消息用于指示所述第二设备根据所述第一消息为所述第一用户设备建立连接包括：
    所述第一消息用于指示所述第二用户设备和/或所述第一网络设备根据所述第一消息为所述第一用户设备建立所述第二用户设备与所述第一用户设备的连接以及所述第二用户设备与第一网络设备的连接；
    或者，
    当所述第二用户设备存在其与所述第一网络设备的连接时，所述第一消息用于指示所述第二用户设备和/或所述第一网络设备根据所述第一消息为所述第一用户设备建立所述第二用户设备与所述第一用户设备的连接；
    或者，
    当所述第一用户设备存在其与第二用户设备的连接时，所述第一消息用 于指示所述第二用户设备和/或所述第一网络设备根据所述第一消息为所述第一用户设备建立所述第二用户设备与第一网络设备的连接；
    或者，
    所述第一消息用于指示所述第二用户设备和/或所述第一网络设备根据所述第一消息为所述第一用户设备建立所述第二用户设备与所述第一用户设备的连接。
  25. 根据权利要求24所述的设备，其特征在于，所述第一设备存在与第二网络设备的连接，所述处理器还用于，确定所述第二用户设备的信息以及第一网络设备的信息；
    所述收发器还用于，将所述第二用户设备的信息以及所述第一网络设备的信息发送给所述第二网络设备，以使得所述第二网络设备指示所述第一网络设备分配给所述第二用户设备用于所述第二用户设备与所述第一设备进行通信的资源，或者所述第二网络设备基于所述第一网络设备的信息和/或所述第二用户设备的信息，分配所述第一设备用于所述第二用户设备与所述第一设备进行通信的资源。
  26. 根据权利要求20所述的设备，其特征在于，所述收发器还用于，所述接收所述第二设备发送的第二消息，所述第二消息携带有第二信息，所述第二信息包括所述第二设备支持的用户设备的指示信息；所述指示信息包括支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求。
  27. 根据权利要求26所述的设备，其特征在于，所述处理器还用于，所述第一设备根据所述第二消息确定所述第二设备支持为所述第一用户设备提供服务时，控制所述收发器向所述第二设备发送第一消息。
  28. 一种通信设备，其特征在于，包括：
    收发器，用于接收第一设备发送的第一消息，所述第一消息携带有第一 信息，所述第一信息包括所述第一设备的链路状态信息和/或链路需求信息，所述第一消息用于指示所述第二用户设备根据所述第一消息为所述第一设备建立连接；
    处理器，用于根据所述第一信息确定，当所述第二用户设备的能力满足所述第一设备的需求时，建立连接为所述第一设备提供服务。
  29. 根据权利要求28所述的设备，其特征在于，所述第二设备包括第二用户设备和第一网络设备，所述收发器还用于，接收第一网络设备发送的第二消息，所述第二消息携带有第二信息，所述第二信息包括所述第一网络设备支持的用户设备的指示信息；所述指示信息包括支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求；
    所述处理器还用于，当所述第一网络设备支持为所述第一设备提供服务，且所述第二用户设备的能力满足所述第一设备的需求时，建立所述连接为所述第一设备提供服务。
  30. 根据权利要求28或29所述的设备，其特征在于，所述第一设备存在与第二网络设备的连接，当所述第二设备为第一网络设备时，所述收发器还用于，接收所述第二网络设备发送的指示消息，所述指示消息用于指示所述第一网络设备分配给所述第二用户设备用于所述第二用户设备与所述第一设备进行通信的资源；
    所述处理器还用于，基于所述指示消息分配给所述第二用户设备用于所述第二用户设备与所述第一设备进行通信的资源。
  31. 根据权利要求28或29所述的设备，其特征在于，所述第一设备存在与第二网络设备的连接，当所述第二设备为第一网络设备时，所述收发器还用于，所述第一网络设备将其分配给第二用户设备的资源信息发送给所述第二网络设备；以使得所述第二网络设备基于所述第一网络设备分配给第二用户设备的资源信息为所述第一设备分配资源。
  32. 一种通信设备，其特征在于，所述设备为用户设备，包括：
    收发器，用于接收至少一个第二用户设备或至少一个第一网络设备发送的第三消息，所述第三消息携带有第二信息，所述第二信息包括所述第二设备支持的用户设备的指示信息；所述指示信息包括支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求；
    处理器，用于根据所述第二信息选择所述至少一个第二设备中的一个；
    所述收发器还用于，向选定的第二设备发送连接建立请求消息，所述连接建立请求消息用于指示所述选定的第二设备为所述第一设备建立连接为所述第一设备提供服务。
  33. 根据权利要求32所述的设备，其特征在于，所述第二设备包括下述一项或多项：
    第二用户设备、第一网络设备。
  34. 根据权利要求33所述的方法，其特征在于，所述指示信息包括下述任意一项或多项：
    对所述第一设备已建立的通信链路的数量的要求；
    对所述第一设备已建立的通信链路的质量的要求；
    对所述第一设备已建立的通信链路的类型的要求；能够满足的所述第一设备对需要为其提供服务的网络设备的要求；
    能够满足的所述第一设备对需要为其提供服务的第二用户设备的要求；
    能够满足的所述第一设备对需要为其提供服务的第二用户设备所在小区的要求；
    能够满足的所述第一设备对其与需要为其提供服务的网络设备之间的通信质量的要求；
    能够满足的所述第一设备对其与需要为其提供服务的第二用户设备之间的通信质量的要求；
    能够满足的所述第一设备对其与需要为其提供服务的第二用户设备所在 小区中的通信质量的要求。
  35. 一种通信设备，其特征在于，包括：
    收发器，用于向第一设备发送第三消息，所述第三消息携带有第二信息，所述第二信息包括所述第二设备支持的用户设备的指示信息；所述指示信息包括支持的用户设备的链路状态和/或链路需求，或者不支持的用户设备的链路状态和/或链路需求；
    所述收发器还用于，接收所述第一设备依据所述第三消息发送的连接建立请求消息，所述连接建立请求消息用于指示，第二设备为所述第一设备建立连接；
    处理器，用于根据所述连接建立请求消息建立连接为所述第一设备提供服务。
  36. 根据权利要求35所述的设备，其特征在于，所述第二设备包括第二用户设备和第一网络设备，所述收发器还用于，所述第二用户设备接收所述第一网络设备发送的第四消息，所述第四消息携带有所述第一网络设备支持的用户设备的指示信息。
  37. 根据权利要求35所述的设备，其特征在于，所述第二设备包括第二用户设备和第一网络设备，当所述第二设备为第一网络设备时，所述收发器还用于，向第二用户设备发送第三消息，所述第三消息携带有第二信息，所述第二信息包括所述第一网络设备是否支持为特定链路状态和/或特定链路需求的用户设备提供服务的指示信息；
    所述收发器还用于，接收所述第二用户设备依据所述第三消息发送的连接建立请求消息，所述连接建立请求消息用于指示，所述第一网络设备为所述第一设备建立连接；
    所述处理器还用于，根据所述连接建立请求建立连接。
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