WO2017133261A1 - 终端化小区基于sdn控制的带宽共享方法及带宽共享装置 - Google Patents

终端化小区基于sdn控制的带宽共享方法及带宽共享装置 Download PDF

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Publication number
WO2017133261A1
WO2017133261A1 PCT/CN2016/100549 CN2016100549W WO2017133261A1 WO 2017133261 A1 WO2017133261 A1 WO 2017133261A1 CN 2016100549 W CN2016100549 W CN 2016100549W WO 2017133261 A1 WO2017133261 A1 WO 2017133261A1
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Prior art keywords
terminalized
cell
bandwidth
cells
base station
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English (en)
French (fr)
Inventor
张云飞
郑倩
雷艺学
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Priority to US16/075,151 priority Critical patent/US11115869B2/en
Publication of WO2017133261A1 publication Critical patent/WO2017133261A1/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/20—Negotiating bandwidth
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/38—Flow based routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/76—Admission control; Resource allocation using dynamic resource allocation, e.g. in-call renegotiation requested by the user or requested by the network in response to changing network conditions
    • H04L47/765—Admission control; Resource allocation using dynamic resource allocation, e.g. in-call renegotiation requested by the user or requested by the network in response to changing network conditions triggered by the end-points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/14—Interfaces between hierarchically different network devices between access point controllers and backbone network device

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a bandwidth sharing method based on SDN control of a terminalized cell and a bandwidth sharing apparatus based on SDN control of a terminalized cell.
  • the traditional macro cell With the wide application of LTE (Long Term Evolution) technology, the traditional macro cell (Macrocell) encounters the bottleneck of network construction and coverage. The hotspots and blind spots of the network need to be flexibly deployed to improve. In response to the above problem, the operator deploys a small cell (Small Cell) to implement deep coverage and capacity enhancement of the network to support future 5G ultra-dense networking.
  • Small Cell Small Cell
  • Figure 1 shows the network architecture and comparison of the three types of Small Cell solutions:
  • the first type of Small Cell solution includes schemes for home base stations (such as Femtocell, Picocell, etc.), which require a cable-based backhaul and need to maintain the S1 and S5 interfaces on the cell-to-core side of the network. Access to the core network is only applicable to the areas where these cells are deployed. For areas where network coverage is not good enough to provide wireless coverage or areas that cannot provide backhaul, rapid deployment or short-term capacity improvement (such as public safety) cannot be implemented. Therefore, its flexibility is limited.
  • home base stations such as Femtocell, Picocell, etc.
  • the second type of solution includes the MiFi router solution, which is based on wireless backhaul, but the terminal access MiFi works in WLAN (Wireless Local Area). Networks, WLANs, unlicensed bands, are easily interfered with, so that QoS (Quality of Service) is difficult to guarantee.
  • WLAN Wireless Local Area
  • the third type of solution is to provide Small Cell access through a terminal, that is, a T-SC (Terminal Small Cell).
  • the terminal implements access to the T-SC and the T-SC based wireless backhaul by using a D2D (Device-to-Device) technology and a Relay technology. Because the T-SC can provide access based on the LTE licensed band and wireless backhaul, the T-SC becomes the most flexible and controllable Small Cell access solution.
  • the terminal aggregated by the T-SC is actually accessed by the T-SC and the wireless bearer established by the network as a wireless backhaul, and the cooperation between the T-SCs based on the D2D X2 interface is adopted.
  • the wireless backhaul of multiple T-SCs can be shared, and the flexibility is higher than that of the traditional small cell technology.
  • the route to the network side that is aggregated by the T-SC is still limited by the energy consumption status of the T-SC, the available bandwidth, and the cost of providing access. There is a technology that cannot effectively utilize these global state information, which may make this wireless backhaul sharing mechanism difficult to apply.
  • the present invention is based on at least one of the above technical problems, and proposes a new terminal-defined cell based on SDN (Software Defined Network) controlled bandwidth sharing scheme, so that the SDN controller can have multiple T-SCs in the
  • SDN Software Defined Network
  • the bandwidth resources on the backhaul link are bundled and provided for high-bandwidth service, ensuring that the wireless backhaul sharing mechanism between the T-SCs can be applied, and the technical effect of flexibly configuring bandwidth resources on the backhaul link is realized.
  • a method for bandwidth sharing based on SDN control of a terminalized cell including: determining, by the SDN controller, whether a trigger request for sharing bandwidth is received, the trigger request indicating any terminal When processing the target service on the backhaul link, the shared bandwidth needs to be provided by other terminalized cells, and the bandwidth requirement of the target service is greater than or equal to a first predetermined threshold; when it is determined that the trigger request is received, Providing at least one terminalized cell that provides shared bandwidth to any of the terminalized cells; controlling any one of the terminals The terminalized cell and the at least one terminalized cell jointly process the target service.
  • the SDN controller selects at least one terminalized cell that provides a shared bandwidth to any of the foregoing terminalized cells when receiving the trigger request of the shared bandwidth, to control any of the foregoing terminalized cells and the selected ones.
  • the at least one terminalized cell jointly processes the target service, so that the SDN controller can be more than the high bandwidth service on any of the T-SC backhaul links (ie, the target service whose bandwidth requirement is greater than or equal to the first predetermined threshold)
  • the bandwidth resources of the T-SCs on the backhaul link are bundled and provided for the high-bandwidth service, ensuring that the wireless backhaul sharing mechanism between the T-SCs can be applied, and the bandwidth resources on the backhaul link are flexibly configured.
  • the step of controlling the processing of the target service by the any terminalized cell and the at least one terminalized cell specifically: to each terminal in the at least one terminalized cell And arranging, respectively, the routing policy of the service data, and the routing policy respectively configured to the any of the terminalized cells and the each of the terminalized cells to be any one of the terminalized cells
  • the base station providing the backhaul link with the at least one terminalized cell, and the base station respectively forwards to the corresponding terminalized cell, so that the any terminalized cell and each of the terminalized cells are respectively allocated according to the separately allocated route
  • the policy collectively routes the traffic data of the target service to the base station.
  • the SDN controller can comprehensively integrate the global topology into any of the foregoing terminalized cells and Each of the at least one terminalized cell configures an optimal route to improve data transmission efficiency between the terminalized cell and the base station.
  • the routing policy may be configured to the terminalized cell according to the state information of the terminalized cell, the path information between the terminalized cells, and the path information between the terminalized cell and the base station.
  • the status information of the terminalized cell includes: address information, energy consumption information, and available bandwidth information;
  • path information between the terminalized cells includes: path delay information, path cost information; and a path between the terminalized cell and the base station The information includes: path delay information and path cost information.
  • the method further includes: configuring a routing policy to the network side server to the base station; and sending a routing policy to the network side server configured to the base station And to the base station, so that the base station routes the service data to the network side server according to an allocated routing policy.
  • the SDN controller can also configure an optimal route for the base station based on the integrated global topology, so as to improve data between the base station and the network side server. Transmission efficiency.
  • the method further includes determining the number of the at least one terminalized cell based on the capability information of the SDN controller and/or the data feature of the target service.
  • the capability information of the SDN controller includes computing capabilities.
  • the triggering request includes: the available bandwidth information of the any terminalized cell, the bandwidth requirement of the target service, and the remaining power of the any terminalized cell.
  • a method for bandwidth sharing based on SDN control of a terminalized cell including: when any terminalized cell processes a target service on a backhaul link, according to any of the terminalized cells
  • the status information determines whether the shared bandwidth needs to be provided by other terminalized cells, wherein the bandwidth requirement of the target service is greater than or equal to a first predetermined threshold; and when it is determined that the shared bandwidth needs to be provided by other terminalized cells, the base station controls to the SDN.
  • the device sends a trigger request for shared bandwidth.
  • the base station sends a trigger request for the shared bandwidth to the SDN controller, so that the SDN controller can select at least one terminalized cell that provides the shared bandwidth to any of the above-mentioned terminalized cells to control any of the above-mentioned terminalized cells and the selection.
  • the at least one terminalized cell jointly processes the target service, thereby ensuring that the SDN controller can bundle the bandwidth resources of the multiple T-SCs on the backhaul link to provide the high bandwidth service, thereby ensuring the T-SC.
  • the wireless backhaul sharing mechanism can be applied to realize the technical effect of flexibly configuring bandwidth resources on the backhaul link.
  • the step of determining whether the shared bandwidth needs to be provided by other terminalized cells according to the status information of any of the terminalized cells specifically includes: the available bandwidth in the any terminalized cell cannot be satisfied.
  • the method further includes: determining whether the available bandwidth of the any terminalized cell is greater than or equal to a second predetermined threshold, and determining whether the remaining power of the any terminalized cell is greater than or equal to a second predetermined power value; when it is determined that the available bandwidth of the any terminalized cell is greater than or equal to the second predetermined threshold, and the remaining power of the any terminalized cell is greater than or equal to the second predetermined power value,
  • the base station sends the information of any of the terminalized cells to the SDN controller, so that the SDN controller determines whether the selected terminalized cell provides a shared bandwidth to other terminalized cells.
  • the SDN may be sent to the SDN.
  • the controller sends its own information so that the SDN controller determines whether it is selected to provide shared bandwidth to other terminalized cells.
  • a method for bandwidth sharing based on SDN control of a terminalized cell comprising: acquiring, by the base station, status information of any terminalized cell of a target service on the backhaul link, and according to the Determining, by the status information of any of the terminalized cells, the state information of the base station, whether the shared bandwidth is required to be provided by the other terminalized cells to the any of the terminalized cells, where the bandwidth requirement of the target service is greater than or equal to a predetermined threshold; when it is determined that the shared bandwidth needs to be provided by the other terminalized cell to the any terminalized cell, a trigger request for the shared bandwidth is sent to the SDN controller.
  • the base station sends a trigger request for sharing bandwidth to the SDN controller when determining that the shared bandwidth needs to be provided by the other terminalized cell to any of the terminalized cells, so that the SDN controller can select to any of the foregoing terminals.
  • the UE provides at least one terminalized cell with shared bandwidth to control any one of the foregoing terminalized cells and the selected at least one terminalized cell to jointly process the target service, thereby ensuring that the SDN controller can connect multiple T-SCs on the backhaul link.
  • the bandwidth resources are bundled and provided for the high-bandwidth service, ensuring that the wireless backhaul sharing mechanism between the T-SCs can be applied, and the technical effect of flexibly configuring the bandwidth resources on the backhaul link is realized.
  • the step of determining, by the status information of the base station, whether a shared bandwidth is required to be provided by the other terminalized cell to the any terminalized cell specifically includes:
  • the available bandwidth of the any terminalized cell cannot meet the bandwidth requirement of the target service, and the available bandwidth of the base station is insufficient to be allocated to any of the terminalized cells, or the base station is in the When the cost of providing bandwidth for a terminalized cell is higher than expected, it is determined that the shared bandwidth needs to be provided by the other terminalized cells to any of the terminalized cells.
  • the cost of providing bandwidth to the any terminalized cell is determined according to the network state of the base station and the performance requirement of the target service, where
  • the network status includes network capacity and network load, and performance requirements of the target service include bandwidth requirements, delay requirements, and quality of service requirements.
  • the "cost of providing bandwidth” described here mainly considers the characteristics of high bandwidth, low latency, and high QoS of the mobile Internet service. If the wireless backhaul of a terminalized cell is not ideal enough, the service will not be satisfied. Demand, and the base station needs to sacrifice network capacity to guarantee the resources of the backhaul link, so the base station needs comprehensive consideration to determine the cost of providing bandwidth.
  • the method further includes: determining whether a trigger request for the shared bandwidth sent by the any terminalized cell is received; and determining to trigger the receiving of the shared bandwidth sent by the any terminalized cell. Upon request, the trigger request for the shared bandwidth is forwarded to the SDN controller.
  • the trigger request for the shared bandwidth is sent by any terminalized cell, and the base station acts as a relay device between any terminalized cell and the SDN controller.
  • the method further includes: receiving, by the SDN controller, the at least one terminalization of the shared bandwidth to the base station, the any terminalized cell, and the any terminalized cell. a routing policy configured for each of the terminalized cells in the cell; the routing policy configured by the SDN controller to the any of the terminalized cells and the each of the terminalized cells is respectively forwarded to a corresponding terminalized cell.
  • the base station by receiving a routing policy configured by the SDN controller to the base station, the base station can configure the optimal route according to the SDN controller (the SDN controller can integrate the global topology to configure the optimal route for the base station) and the network.
  • Side server communication to improve routing efficiency between the base station and the network side server; and by SDN controller to any of the above terminalized cells
  • each of the at least one terminalized cell configuration routing policy is forwarded to the corresponding terminalized cell, so that each of the terminalized cells and each of the at least one terminalized cell can be controlled according to SDN.
  • the SDN controller can flexibly configure the optimal route for each of the terminalized cells and each of the at least one terminalized cell in the at least one terminalized cell in combination with the global topology) to communicate with the base station, thereby improving The data transmission efficiency between the terminalized cell and the base station.
  • a bandwidth sharing apparatus based on SDN control of a terminalized cell which is applicable to an SDN controller, and includes: a determining unit, configured to determine whether a trigger request for receiving a shared bandwidth is received, the triggering The request indicates that any terminalized cell needs to provide shared bandwidth by other terminalized cells when the target service on the backhaul link is processed, and the bandwidth requirement of the target service is greater than or equal to a first predetermined threshold; Determining, by the determining unit, that at least one terminalized cell that provides a shared bandwidth to the any terminalized cell is selected when the triggering request is received; and the control unit is configured to control the any terminalized cell and the at least one The terminalized cells jointly process the target service.
  • the SDN controller selects at least one terminalized cell that provides a shared bandwidth to any of the foregoing terminalized cells when receiving the trigger request of the shared bandwidth, to control any of the foregoing terminalized cells and the selected ones.
  • the at least one terminalized cell jointly processes the target service, so that the SDN controller can be more than the high bandwidth service on any of the T-SC backhaul links (ie, the target service whose bandwidth requirement is greater than or equal to the first predetermined threshold)
  • the bandwidth resources of the T-SCs on the backhaul link are bundled and provided for the high-bandwidth service, ensuring that the wireless backhaul sharing mechanism between the T-SCs can be applied, and the bandwidth resources on the backhaul link are flexibly configured.
  • the control unit includes: a configuration unit, configured to separately configure a routing policy of the service data to each of the at least one terminalized cell and the any of the terminalized cells a sending unit, configured to send, to the any of the terminalized cells and the at least one terminalized cell, a routing policy respectively configured by the configuration unit to the any of the terminalized cells and the each of the terminalized cells
  • the base station providing the backhaul link is forwarded by the base station to the corresponding terminalized cell, so that the any terminalized cell and the each terminalized cell jointly jointly perform the target service according to the separately allocated routing policy. Routing business data to The base station.
  • the SDN controller can comprehensively integrate the global topology into any of the foregoing terminalized cells and Each of the at least one terminalized cell configures an optimal route to improve data transmission efficiency between the terminalized cell and the base station.
  • the routing policy may be configured to the terminalized cell according to the state information of the terminalized cell, the path information between the terminalized cells, and the path information between the terminalized cell and the base station.
  • the status information of the terminalized cell includes: address information, energy consumption information, and available bandwidth information;
  • path information between the terminalized cells includes: path delay information, path cost information; and a path between the terminalized cell and the base station The information includes: path delay information and path cost information.
  • the configuration unit is further configured to: configure a routing policy to the base station to the network side server; the sending unit is further configured to configure the configuration unit to the base station The routing policy to the network side server is sent to the base station, so that the base station routes the service data to the network side server according to the allocated routing policy.
  • the SDN controller can also configure an optimal route for the base station based on the integrated global topology, so as to improve data between the base station and the network side server. Transmission efficiency.
  • the selecting unit is further configured to: determine the number of the at least one terminalized cell based on capability information of the SDN controller and/or data characteristics of the target service.
  • the triggering request includes: the available bandwidth information of the any terminalized cell, the bandwidth requirement of the target service, and the remaining power of the any terminalized cell.
  • a bandwidth sharing apparatus based on SDN control of a terminalized cell which is applicable to any terminalized cell, and includes: a determining unit, configured to process the backhaul link in any terminalized cell. And determining, according to the status information of any of the terminalized cells, whether the shared bandwidth needs to be provided by the other terminalized cells, where the bandwidth requirement of the target service is greater than or equal to a first predetermined threshold; and the sending unit is set to The confirmation sheet
  • the base station sends a trigger request for the shared bandwidth to the SDN controller.
  • the base station sends a trigger request for the shared bandwidth to the SDN controller, so that the SDN controller can select at least one terminalized cell that provides the shared bandwidth to any of the above-mentioned terminalized cells to control any of the above-mentioned terminalized cells and the selection.
  • the at least one terminalized cell jointly processes the target service, thereby ensuring that the SDN controller can bundle the bandwidth resources of the multiple T-SCs on the backhaul link to provide the high bandwidth service, thereby ensuring the T-SC.
  • the wireless backhaul sharing mechanism can be applied to realize the technical effect of flexibly configuring bandwidth resources on the backhaul link.
  • the determining unit is specifically configured to: the available bandwidth of the any terminalized cell cannot meet the bandwidth requirement of the target service, and/or the remaining of the terminalized cell When the power is lower than the first predetermined power value, it is determined that the shared bandwidth needs to be provided by other terminalized cells.
  • the method further includes: a determining unit, configured to determine whether the available bandwidth of the any terminalized cell is greater than or equal to a second predetermined threshold, and determine the remaining of the any terminalized cell Whether the electric quantity is greater than or equal to the second predetermined electric quantity value; the sending unit is further configured to: at the determining unit, determining that the available bandwidth of the any terminalized cell is greater than or equal to the second predetermined threshold, and any one of the When the remaining power of the terminalized cell is greater than or equal to the second predetermined power value, the base station sends the information of the any terminalized cell to the SDN controller, so that the SDN controller determines whether to select the A terminalized cell provides shared bandwidth to other terminalized cells.
  • the SDN may be sent to the SDN.
  • the controller sends its own information so that the SDN controller determines whether it is selected to provide shared bandwidth to other terminalized cells.
  • a bandwidth sharing device based on SDN control of a terminalized cell which is applicable to a base station, and includes: an acquiring unit, configured to acquire a processing backhaul link. Status information of any terminalized cell of the target service, where the bandwidth requirement of the target service is greater than or equal to a first predetermined threshold; the determining unit is configured to be based on the status information of the any terminalized cell and the Determining whether the base station itself needs to provide the shared bandwidth to the any terminalized cell by the other terminalized cell; the sending unit is configured to determine, at the determining unit, that the other terminalized cell needs to be terminated by the terminal When the cell provides shared bandwidth, it sends a trigger request for shared bandwidth to the SDN controller.
  • the base station sends a trigger request for sharing bandwidth to the SDN controller when determining that the shared bandwidth needs to be provided by the other terminalized cell to any of the terminalized cells, so that the SDN controller can select to any of the foregoing terminals.
  • the UE provides at least one terminalized cell with shared bandwidth to control any one of the foregoing terminalized cells and the selected at least one terminalized cell to jointly process the target service, thereby ensuring that the SDN controller can connect multiple T-SCs on the backhaul link.
  • the bandwidth resources are bundled and provided for the high-bandwidth service, ensuring that the wireless backhaul sharing mechanism between the T-SCs can be applied, and the technical effect of flexibly configuring the bandwidth resources on the backhaul link is realized.
  • the determining unit is specifically configured to: the available bandwidth of the any terminalized cell cannot meet the bandwidth requirement of the target service, and the available bandwidth of the base station is insufficient to be allocated to the When any terminalized cell is described, or when the cost of providing bandwidth to the any terminalized cell by the base station is higher than expected, it is determined that the shared bandwidth needs to be provided by the other terminalized cell to the any terminalized cell.
  • the determining unit is further configured to: determine a cost of providing bandwidth to the any terminalized cell according to a network state of the base station and a performance requirement of the target service, where the network status includes Network capacity and network load; performance requirements of the target service include bandwidth requirements, delay requirements, and quality of service requirements.
  • the "cost of providing bandwidth” described here mainly considers the characteristics of high bandwidth, low latency, and high QoS of the mobile Internet service. If the wireless backhaul of a terminalized cell is not ideal enough, the service will not be satisfied. Demand, and the base station needs to sacrifice network capacity to guarantee the resources of the backhaul link, so the base station needs comprehensive consideration to determine the cost of providing bandwidth.
  • the method further includes: a determining unit, configured to determine whether a trigger request of the shared bandwidth sent by the any terminalized cell is received; the sending unit It is further configured to forward the trigger request of the shared bandwidth to the SDN controller when the determining unit determines that the trigger request of the shared bandwidth sent by the any terminalized cell is received.
  • the trigger request for the shared bandwidth is sent by any terminalized cell, and the base station acts as a relay device between any terminalized cell and the SDN controller.
  • the method further includes: receiving, configured to receive, by the SDN controller, the shared bandwidth to the base station, the any terminalized cell, and the any terminalized cell a routing policy configured for each of the terminalized cells in the at least one terminalized cell; the sending unit is further configured to configure the SDN controller to the any of the terminalized cells and each of the terminalized cells The routing policies are forwarded to the corresponding terminalized cells respectively.
  • the base station can configure the optimal route according to the SDN controller (the SDN controller can integrate the global topology to configure the optimal route for the base station) and the network.
  • Side server communication improving routing efficiency between the base station and the network side server; and forwarding the routing policy to each of the foregoing terminalized cells and each of the at least one terminalized cell by using the SDN controller to the corresponding
  • the terminalized cell enables each of the terminalized cells and the at least one terminalized cell to be optimally configured according to the SDN controller (the SDN controller can flexibly integrate the global topology into any of the foregoing terminals)
  • the optimized cell is configured to communicate with the base station in each of the at least one terminalized cell to improve data transmission efficiency between the terminalized cell and the base station.
  • an SDN controller comprising: the SDN control based bandwidth sharing device of the terminalized cell according to the fourth aspect.
  • a terminalized cell comprising: the SDN control based bandwidth sharing device of the terminalized cell according to the fifth aspect.
  • a base station comprising: the SDN control based bandwidth sharing device of the terminalized cell according to the sixth aspect.
  • the SDN controller can bundle the bandwidth resources of the multiple T-SCs on the backhaul link to provide high-bandwidth service usage, and ensure that the wireless backhaul sharing mechanism between the T-SCs can be applied and implemented.
  • Technology for flexible configuration of bandwidth resources on backhaul links effect.
  • Figure 1 shows a schematic diagram of the network architecture of three Small Cell schemes
  • FIG. 2 is a schematic flow chart showing a method for bandwidth sharing of a terminalized cell based on SDN control according to a first embodiment of the present invention
  • FIG. 3 is a schematic block diagram of a QoS-controlled bandwidth sharing apparatus for a terminalized cell according to a first embodiment of the present invention
  • FIG. 4 shows a schematic block diagram of an SDN controller in accordance with an embodiment of the present invention
  • FIG. 5 is a schematic flow chart showing a method for bandwidth sharing of a terminalized cell based on SDN control according to a second embodiment of the present invention
  • FIG. 6 is a schematic block diagram of a QoS-controlled bandwidth sharing apparatus for a terminalized cell according to a second embodiment of the present invention.
  • Figure 7 shows a schematic block diagram of a terminalized cell in accordance with an embodiment of the present invention.
  • FIG. 8 is a schematic flow chart showing a method for bandwidth sharing of a terminalized cell based on SDN control according to a third embodiment of the present invention.
  • FIG. 9 is a schematic block diagram of a QoS-controlled bandwidth sharing apparatus for a terminalized cell according to a third embodiment of the present invention.
  • Figure 10 shows a schematic block diagram of a base station in accordance with an embodiment of the present invention.
  • FIG. 11 is a schematic diagram showing a scenario of bandwidth sharing according to an embodiment of the present invention.
  • FIG. 12 is a flow chart showing T-SC triggering bandwidth sharing according to an embodiment of the present invention.
  • FIG. 13 is a flowchart showing an eNB triggering bandwidth sharing according to an embodiment of the present invention.
  • FIG. 14 shows a schematic block diagram of another SDN controller in accordance with an embodiment of the present invention.
  • Figure 15 shows a schematic block diagram of another terminalized cell in accordance with an embodiment of the present invention.
  • Figure 16 shows a schematic block diagram of another base station in accordance with an embodiment of the present invention.
  • FIG. 2 is a schematic flow chart showing a method for bandwidth sharing based on SDN control of a terminalized cell according to a first embodiment of the present invention.
  • the method for bandwidth sharing based on SDN control of a terminalized cell includes:
  • Step 202 The SDN controller determines whether a trigger request for the shared bandwidth is received, where the trigger request indicates that any terminalized cell needs to provide shared bandwidth by other terminalized cells when processing the target service on the backhaul link, and the The bandwidth requirement of the target service is greater than or equal to the first predetermined threshold;
  • Step 204 When it is determined that the trigger request is received, selecting at least one terminalized cell that provides a shared bandwidth to any of the terminalized cells;
  • Step 206 Control the any terminalized cell and the at least one terminalized cell to jointly process the target service.
  • the SDN controller selects at least one terminalized cell that provides a shared bandwidth to any of the foregoing terminalized cells when receiving the trigger request of the shared bandwidth, to control any of the foregoing terminalized cells and the selected ones.
  • the at least one terminalized cell jointly processes the target service, so that the SDN controller can be more than the high bandwidth service on any of the T-SC backhaul links (ie, the target service whose bandwidth requirement is greater than or equal to the first predetermined threshold)
  • the bandwidth resources of the T-SCs on the backhaul link are bundled and provided for the high-bandwidth service, ensuring that the wireless backhaul sharing mechanism between the T-SCs can be applied, and the bandwidth resources on the backhaul link are flexibly configured.
  • the step of controlling the processing of the target service by the any terminalized cell and the at least one terminalized cell specifically: to each terminal in the at least one terminalized cell
  • the service cell and the any terminalized cell are respectively configured with service data.
  • the SDN controller can comprehensively integrate the global topology into any of the foregoing terminalized cells and Each of the at least one terminalized cell configures an optimal route to improve data transmission efficiency between the terminalized cell and the base station.
  • the routing policy may be configured to the terminalized cell according to the state information of the terminalized cell, the path information between the terminalized cells, and the path information between the terminalized cell and the base station.
  • the status information of the terminalized cell includes: address information, energy consumption information, and available bandwidth information;
  • path information between the terminalized cells includes: path delay information, path cost information; and a path between the terminalized cell and the base station The information includes: path delay information and path cost information.
  • the method further includes: configuring a routing policy to the network side server to the base station; and sending a routing policy to the network side server configured to the base station to the base station, so as to enable The base station routes the service data to the network side server according to the allocated routing policy.
  • the SDN controller can also configure an optimal route for the base station based on the integrated global topology, so as to improve data between the base station and the network side server. Transmission efficiency.
  • the method further includes determining the number of the at least one terminalized cell based on the capability information of the SDN controller and/or the data feature of the target service.
  • the capability information of the SDN controller includes computing capabilities.
  • the triggering request includes: the available bandwidth information of the any terminalized cell, the bandwidth requirement of the target service, and the remaining power of the any terminalized cell.
  • FIG. 3 shows a terminalized cell based on SDN control according to a first embodiment of the present invention.
  • the SDN-controlled bandwidth sharing apparatus 300 of the terminalized cell according to the first embodiment of the present invention is applicable to an SDN controller, and includes: a determining unit 302, a selecting unit 304, and a control unit 306.
  • the determining unit 302 is configured to determine whether a trigger request for the shared bandwidth is received, where the trigger request indicates that any terminalized cell needs to provide shared bandwidth by other terminalized cells when processing the target service on the backhaul link, and The bandwidth requirement of the target service is greater than or equal to a first predetermined threshold; the selecting unit 304 is configured to: when the determining unit 302 determines that the trigger request is received, select to provide at least the shared bandwidth to the any terminalized cell. a terminalized cell; the control unit 306 is configured to control the any terminalized cell and the at least one terminalized cell to jointly process the target service.
  • the SDN controller selects at least one terminalized cell that provides a shared bandwidth to any of the foregoing terminalized cells when receiving the trigger request of the shared bandwidth, to control any of the foregoing terminalized cells and the selected ones.
  • the at least one terminalized cell jointly processes the target service, so that the SDN controller can be more than the high bandwidth service on any of the T-SC backhaul links (ie, the target service whose bandwidth requirement is greater than or equal to the first predetermined threshold)
  • the bandwidth resources of the T-SCs on the backhaul link are bundled and provided for the high-bandwidth service, ensuring that the wireless backhaul sharing mechanism between the T-SCs can be applied, and the bandwidth resources on the backhaul link are flexibly configured.
  • the control unit 306 includes: a configuration unit 3062, configured to separately configure service data to each of the at least one terminalized cell and the any of the terminalized cells a routing policy, the sending unit 3064, configured to send, to the any configured terminal, the routing policy configured by the configuration unit 3062 to the any of the terminalized cells and the each of the terminalized cells to the any of the terminalized cells and the at least a base station providing a backhaul link, and the base station is respectively forwarded to the corresponding terminalized cell, so that any of the terminalized cells and each of the terminalized cells jointly perform according to respectively allocated routing policies.
  • the service data of the target service is routed to the base station.
  • the SDN controller can integrate the global The topology flexibly configures an optimal route for each of the terminalized cells and each of the at least one terminalized cell to improve data transmission efficiency between the terminalized cell and the base station.
  • the routing policy may be configured to the terminalized cell according to the state information of the terminalized cell, the path information between the terminalized cells, and the path information between the terminalized cell and the base station.
  • the status information of the terminalized cell includes: address information, energy consumption information, and available bandwidth information;
  • path information between the terminalized cells includes: path delay information, path cost information; and a path between the terminalized cell and the base station The information includes: path delay information and path cost information.
  • the configuration unit 3062 is further configured to configure a routing policy to the network base server to the base station; the sending unit 3064 is further configured to: the configuration unit 3062 A routing policy to the network side server configured by the base station is sent to the base station, so that the base station routes the service data to the network side server according to the allocated routing policy.
  • the SDN controller can also configure an optimal route for the base station based on the integrated global topology, so as to improve data between the base station and the network side server. Transmission efficiency.
  • the selecting unit 304 is further configured to: determine the quantity of the at least one terminalized cell based on capability information of the SDN controller and/or data characteristics of the target service. .
  • the triggering request includes: the available bandwidth information of the any terminalized cell, the bandwidth requirement of the target service, and the remaining power of the any terminalized cell.
  • FIG. 4 shows a schematic block diagram of an SDN controller in accordance with an embodiment of the present invention.
  • the SDN controller 400 includes: a terminal sharing cell based on the SDN control-based bandwidth sharing apparatus 300 as shown in FIG.
  • FIG. 5 is a schematic flow chart showing a method for bandwidth sharing based on SDN control of a terminalized cell according to a second embodiment of the present invention.
  • a method for bandwidth sharing based on SDN control of a terminalized cell includes:
  • Step 502 When processing the target service on the backhaul link, determining, according to the status information of any of the terminalized cells, whether the shared bandwidth needs to be provided by other terminalized cells, where the bandwidth of the target service is The demand is greater than or equal to the first predetermined threshold;
  • Step 504 When it is determined that the shared bandwidth needs to be provided by other terminalized cells, the base station sends a trigger request for the shared bandwidth to the SDN controller.
  • the base station sends a trigger request for the shared bandwidth to the SDN controller, so that the SDN controller can select at least one terminalized cell that provides the shared bandwidth to any of the above-mentioned terminalized cells to control any of the above-mentioned terminalized cells and the selection.
  • the at least one terminalized cell jointly processes the target service, thereby ensuring that the SDN controller can bundle the bandwidth resources of the multiple T-SCs on the backhaul link to provide the high bandwidth service, thereby ensuring the T-SC.
  • the wireless backhaul sharing mechanism can be applied to realize the technical effect of flexibly configuring bandwidth resources on the backhaul link.
  • the step of determining whether the shared bandwidth needs to be provided by other terminalized cells according to the status information of any of the terminalized cells specifically includes: the available bandwidth in the any terminalized cell cannot be satisfied.
  • the bandwidth requirement of the target service, and/or the remaining power of any of the terminalized cells is lower than the first predetermined power value, it is determined that the shared bandwidth needs to be provided by other terminalized cells.
  • the method further includes: determining whether the available bandwidth of the any terminalized cell is greater than or equal to a second predetermined threshold, and determining whether the remaining power of the any terminalized cell is greater than or equal to a second predetermined power value; when it is determined that the available bandwidth of the any terminalized cell is greater than or equal to the second predetermined threshold, and the remaining power of the any terminalized cell is greater than or equal to the second predetermined power value,
  • the base station sends the information of any of the terminalized cells to the SDN controller, so that the SDN controller determines whether the selected terminalized cell provides a shared bandwidth to other terminalized cells.
  • the SDN may be sent to the SDN.
  • the controller sends its own information so that the SDN controller can determine whether to select It is chosen to provide shared bandwidth to other terminalized cells.
  • FIG. 6 is a schematic block diagram of a QoS-controlled bandwidth sharing apparatus for a terminalized cell according to a second embodiment of the present invention.
  • the SDN-controlled bandwidth sharing apparatus 600 of the terminalized cell is applicable to any terminalized cell, and includes: a determining unit 602, configured to process in any terminalized cell. And determining, according to the status information of any of the terminalized cells, whether the shared bandwidth needs to be provided by the other terminalized cells, where the bandwidth requirement of the target service is greater than or equal to a first predetermined threshold;
  • the unit 604 is configured to send, by the base station, a trigger request for sharing bandwidth to the SDN controller when the determining unit 602 determines that the shared bandwidth needs to be provided by the other terminalized cells.
  • the base station sends a trigger request for the shared bandwidth to the SDN controller, so that the SDN controller can select at least one terminalized cell that provides the shared bandwidth to any of the above-mentioned terminalized cells to control any of the above-mentioned terminalized cells and the selection.
  • the at least one terminalized cell jointly processes the target service, thereby ensuring that the SDN controller can bundle the bandwidth resources of the multiple T-SCs on the backhaul link to provide the high bandwidth service, thereby ensuring the T-SC.
  • the wireless backhaul sharing mechanism can be applied to realize the technical effect of flexibly configuring bandwidth resources on the backhaul link.
  • the determining unit 602 is specifically configured to: the available bandwidth of the any terminalized cell cannot meet the bandwidth requirement of the target service, and/or the When the remaining power is lower than the first predetermined power value, it is determined that the shared bandwidth needs to be provided by other terminalized cells.
  • the method further includes: a determining unit 606, configured to determine whether the available bandwidth of the any terminalized cell is greater than or equal to a second predetermined threshold, and determine the location of the any terminalized cell Whether the remaining power is greater than or equal to the second predetermined power value; the sending unit 604 is further configured to: at the determining unit 606, determining that the available bandwidth of the any terminalized cell is greater than or equal to the second predetermined threshold, and When the remaining power of any of the terminalized cells is greater than or equal to the second predetermined power value, the base station sends the location to the SDN controller The information of any terminalized cell is used by the SDN controller to determine whether to select any of the terminalized cells to provide shared bandwidth to other terminalized cells.
  • the SDN may be sent to the SDN.
  • the controller sends its own information so that the SDN controller determines whether it is selected to provide shared bandwidth to other terminalized cells.
  • Figure 7 shows a schematic block diagram of a terminalized cell in accordance with an embodiment of the present invention.
  • the terminalized cell 700 includes: a terminal sharing cell based on the SDN control bandwidth sharing device 600 as shown in FIG. 6.
  • FIG. 8 is a schematic flow chart showing a method for bandwidth sharing of a terminalized cell based on SDN control according to a third embodiment of the present invention.
  • a method for bandwidth sharing based on SDN control of a terminalized cell includes:
  • Step 802 The base station acquires state information of any terminalized cell that processes the target service on the backhaul link, and determines whether it needs to be used by other terminals according to the state information of the any terminalized cell and the state information of the base station itself. Providing a shared bandwidth to the any of the terminalized cells, where the bandwidth requirement of the target service is greater than or equal to a first predetermined threshold;
  • Step 804 When it is determined that the shared bandwidth needs to be provided by the other terminalized cell to the any terminalized cell, the trigger request for the shared bandwidth is sent to the SDN controller.
  • the base station sends a trigger request for sharing bandwidth to the SDN controller when determining that the shared bandwidth needs to be provided by the other terminalized cell to any of the terminalized cells, so that the SDN controller can select to any of the foregoing terminals.
  • the UE provides at least one terminalized cell with shared bandwidth to control any one of the foregoing terminalized cells and the selected at least one terminalized cell to jointly process the target service, thereby ensuring that the SDN controller can connect multiple T-SCs on the backhaul link.
  • the bandwidth resources are bundled and provided for the high-bandwidth service, ensuring that the wireless backhaul sharing mechanism between the T-SCs can be applied, and the technical effect of flexibly configuring the bandwidth resources on the backhaul link is realized.
  • the step of providing a shared bandwidth by the terminalized cell includes:
  • the available bandwidth of the any terminalized cell cannot meet the bandwidth requirement of the target service, and the available bandwidth of the base station is insufficient to be allocated to any of the terminalized cells, or the base station is in the When the cost of providing bandwidth for a terminalized cell is higher than expected, it is determined that the shared bandwidth needs to be provided by the other terminalized cells to any of the terminalized cells.
  • the cost of providing bandwidth to the any terminalized cell is determined according to the network state of the base station and the performance requirement of the target service, where
  • the network status includes network capacity and network load, and performance requirements of the target service include bandwidth requirements, delay requirements, and quality of service requirements.
  • the "cost of providing bandwidth” described here mainly considers the characteristics of high bandwidth, low latency, and high QoS of the mobile Internet service. If the wireless backhaul of a terminalized cell is not ideal enough, the service will not be satisfied. Demand, and the base station needs to sacrifice network capacity to guarantee the resources of the backhaul link, so the base station needs comprehensive consideration to determine the cost of providing bandwidth.
  • the method further includes: determining whether a trigger request for the shared bandwidth sent by the any terminalized cell is received; and determining to trigger the receiving of the shared bandwidth sent by the any terminalized cell. Upon request, the trigger request for the shared bandwidth is forwarded to the SDN controller.
  • the trigger request for the shared bandwidth is sent by any terminalized cell, and the base station acts as a relay device between any terminalized cell and the SDN controller.
  • the method further includes: receiving, by the SDN controller, the at least one terminalization of the shared bandwidth to the base station, the any terminalized cell, and the any terminalized cell. a routing policy configured for each of the terminalized cells in the cell; the routing policy configured by the SDN controller to the any of the terminalized cells and the each of the terminalized cells is respectively forwarded to a corresponding terminalized cell.
  • the base station by receiving a routing policy configured by the SDN controller to the base station, the base station can configure the optimal route according to the SDN controller (the SDN controller can integrate the global topology to configure the optimal route for the base station) and the network.
  • Side server communication improving routing efficiency between the base station and the network side server; and forwarding the routing policy to each of the foregoing terminalized cells and each of the at least one terminalized cell by using the SDN controller to the corresponding routing policy
  • the terminalized cell enables each of the above-mentioned terminalized cells and each of the at least one terminalized cell to be optimally configured according to the SDN controller (the SDN controller can comprehensively integrate the global topology to any of the above)
  • the terminalized cell and each of the at least one terminalized cell configure an optimal route to communicate with the base station, thereby improving data transmission efficiency between the terminalized cell and the base station.
  • FIG. 9 is a schematic block diagram of a QoS-controlled bandwidth sharing apparatus for a terminalized cell according to a third embodiment of the present invention.
  • the SDN-controlled bandwidth sharing apparatus 900 of the terminalized cell according to the third embodiment of the present invention is applicable to a base station, and includes: an obtaining unit 902, a determining unit 904, and a transmitting unit 906.
  • the obtaining unit 902 is configured to acquire state information of any terminalized cell that processes the target service on the backhaul link, where the bandwidth requirement of the target service is greater than or equal to a first predetermined threshold; and the determining unit 904 is configured to Determining, according to the state information of any of the terminalized cells and the state information of the base station, whether the shared bandwidth needs to be provided by the other terminalized cells to the any terminalized cell; the sending unit 906 is configured to be in the determining The unit 904 determines that a shared bandwidth needs to be provided by the other terminalized cell to the any terminalized cell, and sends a trigger request for the shared bandwidth to the SDN controller.
  • the base station sends a trigger request for sharing bandwidth to the SDN controller when determining that the shared bandwidth needs to be provided by the other terminalized cell to any of the terminalized cells, so that the SDN controller can select to any of the foregoing terminals.
  • the UE provides at least one terminalized cell with shared bandwidth to control any one of the foregoing terminalized cells and the selected at least one terminalized cell to jointly process the target service, thereby ensuring that the SDN controller can connect multiple T-SCs on the backhaul link.
  • the bandwidth resources are bundled and provided for the high-bandwidth service, ensuring that the wireless backhaul sharing mechanism between the T-SCs can be applied, and the technical effect of flexibly configuring the bandwidth resources on the backhaul link is realized.
  • the determining unit 904 is specifically configured to: the available bandwidth of the any terminalized cell cannot meet the bandwidth requirement of the target service, and the available bandwidth of the base station is insufficient to be allocated to When any of the terminalized cells, or when the cost of providing bandwidth to the any of the terminalized cells by the base station is higher than expected, it is determined that other terminalized cells need to be determined. Providing shared bandwidth to any of the terminalized cells.
  • the determining unit 904 is further configured to: determine a cost of providing bandwidth to the any terminalized cell according to a network state of the base station and a performance requirement of the target service, where the network status Including network capacity and network load; performance requirements of the target service include bandwidth requirements, delay requirements, and quality of service requirements.
  • the "cost of providing bandwidth” described here mainly considers the characteristics of high bandwidth, low latency, and high QoS of the mobile Internet service. If the wireless backhaul of a terminalized cell is not ideal enough, the service will not be satisfied. Demand, and the base station needs to sacrifice network capacity to guarantee the resources of the backhaul link, so the base station needs comprehensive consideration to determine the cost of providing bandwidth.
  • the method further includes: a determining unit 908, configured to determine whether a trigger request for the shared bandwidth sent by the any terminalized cell is received; the sending unit 906 is further configured to The determining unit 908 determines that the trigger request of the shared bandwidth is forwarded to the SDN controller when receiving the trigger request of the shared bandwidth sent by the any terminalized cell.
  • the trigger request for the shared bandwidth is sent by any terminalized cell, and the base station acts as a relay device between any terminalized cell and the SDN controller.
  • the method further includes: a receiving unit 910, configured to receive, by the SDN controller, the base station, the any terminalized cell, and provide sharing for any of the terminalized cells a routing policy configured by each of the terminalized cells in the at least one terminalized cell of the bandwidth; the sending unit 906 is further configured to: direct the SDN controller to the any terminalized cell and each of the terminalized cells The routing policies configured by the cell are respectively forwarded to the corresponding terminalized cells.
  • the base station by receiving a routing policy configured by the SDN controller to the base station, the base station can configure the optimal route according to the SDN controller (the SDN controller can integrate the global topology to configure the optimal route for the base station) and the network.
  • Side server communication improving routing efficiency between the base station and the network side server; and forwarding the routing policy to each of the foregoing terminalized cells and each of the at least one terminalized cell by using the SDN controller to the corresponding
  • the terminalized cell enables each of the terminalized cells and each of the at least one terminalized cell to be optimally configured according to the SDN controller (the SDN controller can
  • the integrated global topology flexibly configures an optimal route for each of the terminalized cells and each of the at least one terminalized cell to communicate with the base station, thereby improving data transmission between the terminalized cell and the base station. effectiveness.
  • Figure 10 shows a schematic block diagram of a base station in accordance with an embodiment of the present invention.
  • a base station 1000 includes a bandwidth sharing apparatus 900 based on SDN control of a terminalized cell as shown in FIG.
  • the technical solution of the present invention is mainly based on a T-SC wireless backhaul sharing scheme, and the basic idea is to introduce an SDN application in a terminal based on T-SC access-based backhaul selection, and through data plane routing configuration in a T-SC scenario.
  • the backhaul resources of multiple T-SCs are bundled and provided to one T-SC for flexible bandwidth configuration.
  • backhaul resources of multiple T-SCs can be bundled and provided for use by a high-bandwidth service (such as VR/AR/VHD) in a T-SC, that is, the bandwidth of these T-SCs.
  • a high-bandwidth service such as VR/AR/VHD
  • Data plane routing for high bandwidth service T-SC is shared.
  • the data stream of the terminal 1102 reaches the base station 1110 through the T-SC 1104, and then reaches the network side server 1112. After the bandwidth is bundled, that is, after the bandwidth sharing, the high bandwidth service of the terminal 1102 is performed.
  • the data stream is sent by the terminal 1102 to the T-SC 1104, and then divided into three parts (to bundle the bandwidth of the three T-SCs as an example): the part 1 reaches the base station 1110 through the T-SC 1104, and then reaches the network side server 1112; Part 2 arrives at T-SC 1106 through T-SC 1104, then arrives at base station 1110 through T-SC 1106, and then arrives at network side server 1112; Part 3 arrives at T-SC 1108 through T-SC 1104 and then arrives through T-SC 1108. The base station 1110 then reaches the network side server 1112.
  • the present invention contemplates that in a wireless environment, if there is a certain T-SC bandwidth insufficient to support high bandwidth services and/or insufficient power to support high bandwidth services, and there are some T-SC bandwidth surpluses and sufficient power, then there is It is possible to share the bandwidth of these bandwidth-rich and fully-charged T-SCs for high-bandwidth service data plane routing of T-SCs with insufficient or insufficient current to meet the needs of high-bandwidth services.
  • This may be a bandwidth bundling (ie bandwidth sharing) process triggered by a certain T-SC, or a bandwidth bundling process triggered by an eNB (base station), which is described below:
  • the bandwidth bundling process triggered by the T-SC includes:
  • Step 1202 In the initial state, a certain T-SC (T-SC1 shown in FIG. 12) uses only its own bandwidth for service data stream transmission.
  • step 1204 the T-SC 1 determines whether the condition for triggering the bandwidth bundling is met. If yes, step 1206 is performed.
  • step 1206 when the T-SC 1 determines that the triggering bandwidth bundling condition is met, the SDN controller is requested to configure the bundling bandwidth to carry the service information of the T-SC 1.
  • the condition for triggering bandwidth bundling is that the T-SC 1 performs judgment based on its own state information (including its service bandwidth, available bandwidth, energy consumption state, and the like). For example, when T-SC 1 processes high-bandwidth services (that is, service bandwidth exceeds a certain threshold), and its available bandwidth is insufficient to support high-bandwidth services, or when T-SC 1 is low, bandwidth bundling can be triggered to utilize Some nearby T-SC backhauls transmit their business data.
  • the request signaling for triggering the bandwidth bundling is sent by the T-SC 1 to the eNB, and then forwarded by the eNB to the SDN controller, similar to the NAS (Non-Access Stratum, which arrives at the MME (Mobility Management Entity)).
  • Non-access stratum Non-access stratum signaling.
  • the request signaling carries some necessary information for bandwidth bundling, including the service bandwidth of T-SC 1, remaining power, available bandwidth, and the like.
  • Step 1208 after receiving the request of the T-SC 1, the SDN controller calculates a T-SC set from the global optimal angle, and the set includes a total of N, including the T-SC 1, and other N-1
  • the T-SC together provides bandwidth bundling for the T-SC 1.
  • the size of N(N ⁇ 2) can be selected based on different criteria, such as the computing power of the SDN controller (N cannot be taken too much), and the data characteristics of the high-bandwidth service itself (for example, virtual reality VR data transmission can be divided into The basic part and the enhancement part can be selected by placing different parts on different T-SCs).
  • step 1210 the SDN controller splits the service data of the T-SC 1 into N shares.
  • Step 1212 The SDN controller configures a routing policy of the service data, and delivers the routing policy to the N T-SCs of the eNB and the T-SC set (T-SC 1, T-SC 2, ... in FIG. 12, T-SC n).
  • the SDN controller sends the eNB routing policy signaling directly to the eNB, and the SDN control
  • the routing policy signaling sent by the controller to the T-SC is forwarded by the eNB, similar to NAS signaling.
  • step 1214 the corresponding T-SC and the eNB sequentially execute the routing table, and part of the data stream of the high bandwidth service can be transmitted through the bandwidth of different T-SCs.
  • the bandwidth bundling process triggered by the eNB includes:
  • Step 1302 In the initial state, a certain T-SC (T-SC1 shown in FIG. 13) uses only its own bandwidth for service data stream transmission.
  • Step 1304 the eNB determines whether the condition for triggering bandwidth bundling is met, and if yes, step 1306 is performed.
  • Step 1306 when the eNB determines that the triggering bandwidth bundling condition is met, the SDN controller is requested to configure the bundling bandwidth to carry the service information of the T-SC 1.
  • the condition for triggering bandwidth bundling is that the eNB determines based on its own state information (including its Uu link bandwidth allocation, bandwidth provision cost, etc.). For example, when the available bandwidth of the T-SC 1 cannot meet the requirements of the high-bandwidth service, and the available bandwidth of the base station is insufficient to be allocated to the T-SC 1, or when the eNB provides too high a cost, the bandwidth bundling is triggered, and some nearby Ts are utilized.
  • the -SC backhaul provides the cost of its data transmission bandwidth or reduced bandwidth.
  • the request signaling for triggering the bandwidth bundling is directly sent by the eNB to the SDN controller.
  • the request signaling carries some necessary information for bandwidth bundling, including the service bandwidth of T-SC 1, remaining power, available bandwidth, and the like.
  • the T-SC together provides bandwidth bundling for the T-SC 1.
  • the size of N(N ⁇ 2) can be selected based on different criteria, such as the computing power of the SDN controller (N cannot be taken too much), and the data characteristics of the high-bandwidth service itself (for example, virtual reality VR data transmission can be divided into The basic part and the enhancement part can be selected by placing different parts on different T-SCs).
  • step 1310 the SDN controller splits the service data of the T-SC 1 into N shares.
  • Step 1312 The SDN controller configures a routing policy of the service data, and delivers the routing policy to the N T-SCs of the eNB and the T-SC set (T-SC 1, T-SC 2, ... in FIG. 13) T-SC n).
  • the routing policy signaling sent by the SDN controller to the eNB directly arrives at the eNB, and the routing policy signaling sent by the SDN controller to the T-SC is forwarded by the eNB, similar to NAS signaling.
  • step 1314 the corresponding T-SC and the eNB sequentially execute the routing table, and part of the data stream of the high bandwidth service can be transmitted through the bandwidth of different T-SCs.
  • FIG. 14 shows a schematic block diagram of another SDN controller in accordance with an embodiment of the present invention.
  • the SDN controller 400 in the embodiment of the present invention includes at least one processor 410, such as a CPU, at least one receiver 413, at least one memory 414, at least one transmitter 415, and at least one communication bus 412.
  • the communication bus 412 is used to implement connection communication between these components.
  • the receiver 413 and the transmitter 415 may be wireless receiving/transmitting devices, for example, including antenna devices, and are responsible for receiving and transmitting mobile signals.
  • the memory 414 may be a high speed RAM memory or a non-volatile memory such as at least one disk memory.
  • the processor 410 may execute an operating system of the SDN controller 400 and various installed applications, program codes, and the like, for example, each unit described above, including the determining unit 302, the selecting unit 304, and the Control unit 306 and the like.
  • Program code is stored in the memory 414, and the processor 410 can invoke program code stored in the memory 414 via the communication bus 412 to perform related functions.
  • the various units e.g., the determining unit 302, the selecting unit 304, the control unit 306, etc.
  • FIG. 3 are program codes stored in the memory 414, and are 410 is performed to implement the functions of the various units to implement a bandwidth sharing method.
  • the memory 414 stores a plurality of instructions that are executed by the processor 410 to implement a bandwidth sharing method. Specifically, the processor 410 determines whether a trigger request for the shared bandwidth is received, where the trigger request indicates that any terminalized cell needs to provide shared bandwidth by other terminalized cells when processing the target service on the backhaul link. And the bandwidth requirement of the target service is greater than or equal to a first predetermined threshold; when determining that the trigger request is received, the processor 410 selects at least one terminalized cell that provides a shared bandwidth to the any terminalized cell; The processor 410 controls the any terminalized cell and the at least one terminalized cell to jointly process the target service.
  • the processor 410 separately configures a routing policy of service data to each of the at least one terminalized cell and the any of the terminalized cells; And respectively, the routing policy configured by the eNB and the each of the terminalized cells is sent to a base station that provides a backhaul link for the any of the terminalized cells and the at least one terminalized cell, and is forwarded by the base station to the corresponding terminal respectively.
  • the cell is configured to cause the any terminalized cell and the each terminalized cell to jointly route the service data of the target service to the base station according to respectively allocated routing policies.
  • the processor 410 determines the number of the at least one terminalized cell based on capability information of the SDN controller and/or data characteristics of the target service.
  • the trigger request includes available bandwidth information of any of the terminalized cells, a bandwidth requirement of the target service, and a remaining power of the any of the terminated cells.
  • Figure 15 shows a schematic block diagram of another terminalized cell in accordance with an embodiment of the present invention.
  • FIG. 15 is a schematic block diagram showing another structure of a terminalized cell 700 according to an embodiment of the present invention.
  • the terminalized cell 700 in the embodiment of the present invention includes: at least one processor 710, such as a CPU, at least one receiver 713, at least one memory 714, at least one transmitter 715, and at least one communication bus 712.
  • the communication bus 712 is used to implement connection communication between these components.
  • the receiver 713 and the transmitter 715 may be wireless receiving/transmitting devices, for example, including antenna devices, and are responsible for receiving and transmitting mobile signals.
  • the memory 714 may be a high speed RAM memory or a non-volatile memory such as at least one disk memory.
  • the processor 710 may execute an operating system of the terminalized cell 700 and various installed application programs, program codes, and the like, for example, each unit, including the determining unit 602, the sending unit 604, and the Judgment unit 606 and the like.
  • Program code is stored in the memory 714, and the processor 710 can invoke program code stored in the memory 714 via the communication bus 712 to perform related functions.
  • the processor 710 can invoke program code stored in the memory 714 via the communication bus 712 to perform related functions.
  • Figure 6 Each of the units (e.g., the determining unit 602, the transmitting unit 604, the determining unit 606, etc.) described in the memory is program code stored in the memory 714 and executed by the processor 710. Thereby the functions of the various units are implemented to implement a bandwidth sharing method.
  • the memory 714 stores a plurality of instructions that are executed by the processor 710 to implement a bandwidth sharing method. Specifically, when any of the terminalized cells is processing the target service on the backhaul link, the processor 710 determines, according to the status information of the any of the terminalized cells, whether the shared bandwidth needs to be provided by other terminalized cells, where The bandwidth requirement of the target service is greater than or equal to a first predetermined threshold; when it is determined that the shared bandwidth needs to be provided by other terminalized cells, the processor 710 sends a trigger request for sharing bandwidth to the SDN controller by using the base station.
  • the processor 710 determines that shared bandwidth needs to be provided by other terminalized cells.
  • the processor 710 determines whether the available bandwidth of the any terminalized cell is greater than or equal to a second predetermined threshold, and determines whether the remaining power of the any terminalized cell is greater than or equal to the second. a predetermined power value; when it is determined that the available bandwidth of the any terminalized cell is greater than or equal to the second predetermined threshold, and the remaining power of the any terminalized cell is greater than or equal to the second predetermined power value, the processing The 710 sends, by the base station, the information of any of the terminalized cells to the SDN controller, so that the SDN controller determines whether the selected terminalized cell provides a shared bandwidth to other terminalized cells.
  • Figure 16 shows a schematic block diagram of another base station in accordance with an embodiment of the present invention.
  • FIG. 16 is a schematic block diagram showing another structure of a base station 1000 according to an embodiment of the present invention.
  • the base station 1000 in the embodiment of the present invention includes: at least one common processor 1010, such as CPR, at least one receiver 1013, at least one memory 1014, at least one transmitter 1015, at least one communication bus 1012, and at least one switching network 1016.
  • the total communication Line 1012 is used to implement connection communication between these components.
  • the receiver 1013 and the transmitter 1015 may be wireless receiving/transmitting devices, for example, including antenna devices, and are responsible for receiving and transmitting mobile signals.
  • the memory 1014 may be a high speed RAM memory or a non-volatile memory such as at least one disk memory.
  • the switching network 1016 will complete the internal exchange of data and voice traffic channels between the interface and the interface.
  • the processor 1010 may execute an operating system of the base station 1000 and various installed applications, program codes, and the like, for example, each unit, including the obtaining unit 902, the determining unit 904, and the sending unit. 906, the determining unit 908, and the like.
  • Program code is stored in the memory 1014, and the processor 1010 can invoke program code stored in the memory 1014 to perform related functions via the communication bus 1012.
  • the respective units described in FIG. 9 are program codes stored in the memory 1014, And being executed by the processor 1010 to implement the functions of the respective units to implement a bandwidth sharing method.
  • the memory 1014 stores a plurality of instructions that are executed by the processor 1010 to implement a bandwidth sharing method.
  • the processor 1010 acquires state information of any terminalized cell that processes the target service on the backhaul link, and determines, according to the state information of the any terminalized cell and the state information of the base station itself. Whether it is necessary for the other terminalized cells to provide the shared bandwidth to the any terminalized cell, wherein the bandwidth requirement of the target service is greater than or equal to a first predetermined threshold; and it is determined that the other terminalized cell needs to be sent to any of the terminals.
  • the processor 1010 sends a trigger request for the shared bandwidth to the SDN controller.
  • the processor 1010 determines that the shared bandwidth needs to be provided by the other terminalized cell to the any terminalized cell.
  • the processor 1010 determines a cost of providing bandwidth to the any of the terminalized cells according to a network state of the base station and a performance requirement of the target service, where The network status includes network capacity and network load, and performance requirements of the target service include bandwidth requirements, delay requirements, and quality of service requirements.
  • the processor 1010 determines whether a trigger request for the shared bandwidth sent by the any terminalized cell is received, and when it is determined that the trigger request for the shared bandwidth sent by the any terminalized cell is received. Transmitting the trigger request of the shared bandwidth to the SDN controller.
  • the processor 1010 receives, in the at least one terminalized cell, the SDN controller provides the shared bandwidth to the base station, the any terminalized cell, and the any of the terminalized cells.
  • Each of the terminalized cells is configured with a routing policy, and the routing policy configured by the SDN controller to the any of the terminalized cells and the each of the terminalized cells is respectively forwarded to a corresponding terminalized cell.
  • the technical solution of the foregoing embodiment of the present invention can be used in a mobile environment, where a T-SC uses a radio bearer as a backhaul scenario, and bundles backhaul resources of multiple T-SCs to provide high-bandwidth service usage under one T-SC. , to achieve flexible bandwidth configuration.
  • the technical solution of the present invention is described by using the SDN controller and the base station as separate entities. If the SDN controller is integrated in the base station, that is, the SDN controller and the base station are one entity, the same applies to the above technical solution of the present invention. In this case, the interaction signaling between the base station and the SDN controller can be omitted.
  • the present invention proposes a new bandwidth sharing scheme based on SDN control for a terminalized cell, so that the SDN controller can set the bandwidth of multiple T-SCs on the backhaul link.
  • the resources are bundled and provided for high-bandwidth service, which ensures that the wireless backhaul sharing mechanism between the T-SCs can be applied, and the technical effect of flexibly configuring bandwidth resources on the backhaul link is realized.

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Abstract

本发明提供了一种终端化小区基于SDN控制的带宽共享方法及带宽共享装置，其中，带宽共享方法包括：SDN控制器确定是否接收到共享带宽的触发请求，所述触发请求表明任一终端化小区在处理回程链路上的目标业务时，需要由其他终端化小区提供共享带宽，且目标业务的带宽需求大于或等于第一预定阈值；在接收到触发请求时，选择出向任一终端化小区提供共享带宽的至少一个终端化小区；控制任一终端化小区和至少一个终端化小区共同处理所述目标业务。本发明使得SDN控制器可以将多个T-SC在回程链路上的带宽资源捆绑起来提供给高带宽业务使用，保证了T-SC之间的无线回程共享机制能够得到应用，实现了灵活配置回程链路上的带宽资源的技术效果。

Description

终端化小区基于SDN控制的带宽共享方法及带宽共享装置
本申请要求于2016年2月3日提交中国专利局，申请号为201610077969.8、发明名称为“终端化小区基于SDN控制的带宽共享方法及带宽共享装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，具体而言，涉及一种终端化小区基于SDN控制的带宽共享方法和一种终端化小区基于SDN控制的带宽共享装置。
背景技术
随着LTE(Long Term Evolution，长期演进)技术的大范围应用，传统的宏小区(Macrocell)遇到了建网和覆盖的瓶颈，网络的热点和盲点亟需灵活的部署方案来完善。针对上述问题，运营商在采用宏小区覆盖的同时部署了小小区(Small Cell)来实现网络的深度覆盖和容量提升，从而来支持未来5G超密集组网。
图1给出了三类Small Cell方案的网络架构示意图和对比：
第一类Small Cell方案包括了家庭基站(如Femtocell、Picocell等)的方案，这类方案需要基于有线的回程(backhaul)且需要维护小区到核心网一侧的S1，S5接口，以这种架构接入到核心网，只适用于部署了这些小区的区域，对于网络覆盖不佳以至于无法提供无线覆盖或者无法提供backhaul的区域，无法实现快速部署或需短期容量提升的场景(例如公共安全)，因此它的灵活度有限。
第二类方案包括MiFi路由器方案，这类方案虽然是基于无线backhaul，但是终端接入MiFi工作在WLAN(Wireless Local Area  Networks，无线局域网)非授权频段，容易被干扰以至于QoS(Quality of Service，服务质量)难以得到保证。
第三类方案是通过终端来提供Small Cell接入，即T-SC(Terminal Small Cell，终端化小区)。终端利用D2D(Device-to-Device，终端直连)技术、Relay技术等实现接入T-SC和基于T-SC的无线backhaul。因为T-SC能提供基于LTE授权频段的接入和无线backhaul，使T-SC成为最为灵活可控制的Small Cell接入方案。
在第三类方案中，被T-SC汇聚的终端，实际上是以T-SC与网络建立的无线承载作为无线回程来接入的，借助于T-SC之间基于D2D X2接口协作的方式，可以将多个T-SC的无线回程进行共享，灵活度相对于传统small cell技术更高。但在实际利用T-SC的无线回程资源时，被T-SC汇聚的终端到网络侧的路由仍然受限于T-SC的能耗状态、可用带宽以及提供接入的代价等因素，按照现有技术，无法有效地利用这些全局状态信息，从而可能造成这种无线回程共享机制难以得到应用。
因此，如何能够有效保证T-SC之间的无线回程共享机制得到应用，以实现灵活的带宽配置成为亟待解决的技术问题。
发明内容
本发明正是基于上述技术问题至少之一，提出了一种新的终端化小区基于SDN(Software Defined Network，软件定义网络)控制的带宽共享方案，使得SDN控制器可以将多个T-SC在回程链路上的带宽资源捆绑起来提供给高带宽业务使用，保证了T-SC之间的无线回程共享机制能够得到应用，实现了灵活配置回程链路上的带宽资源的技术效果。
有鉴于此，根据本发明的第一方面，提出了一种终端化小区基于SDN控制的带宽共享方法，包括：SDN控制器确定是否接收到共享带宽的触发请求，所述触发请求表明任一终端化小区在处理回程链路上的目标业务时，需要由其他终端化小区提供共享带宽，且所述目标业务的带宽需求大于或等于第一预定阈值；在确定接收到所述触发请求时，选择出向所述任一终端化小区提供共享带宽的至少一个终端化小区；控制所述任一终 端化小区和所述至少一个终端化小区共同处理所述目标业务。
在该技术方案中，SDN控制器通过在接收到共享带宽的触发请求时，选择向上述任一终端化小区提供共享带宽的至少一个终端化小区，以控制上述任一终端化小区和选择出的至少一个终端化小区共同处理目标业务，使得对于任一T-SC回程链路上的高带宽业务(即上述的目标业务，其带宽需求大于或等于第一预定阈值)，SDN控制器可以将多个T-SC在回程链路上的带宽资源捆绑起来提供给该高带宽业务使用，保证了T-SC之间的无线回程共享机制能够得到应用，实现了灵活配置回程链路上的带宽资源的技术效果。
在上述技术方案中，优选地，控制所述任一终端化小区和所述至少一个终端化小区共同处理所述目标业务的步骤，具体包括：向所述至少一个终端化小区中的每个终端化小区和所述任一终端化小区分别配置业务数据的路由策略；将向所述任一终端化小区和所述每个终端化小区分别配置的路由策略发送至为所述任一终端化小区和所述至少一个终端化小区提供回程链路的基站，由所述基站分别转发至相应的终端化小区，以使所述任一终端化小区和所述每个终端化小区根据分别分配的路由策略共同将所述目标业务的业务数据路由至所述基站。
在该技术方案中，通过向上述任一终端化小区和上述至少一个终端化小区中的每个终端化小区配置路由策略，使得SDN控制器能够综合全局拓扑灵活地为上述任一终端化小区和上述至少一个终端化小区中的每个终端化小区配置最优的路由，以提高终端化小区与基站之间的数据传输效率。
具体地，可以根据终端化小区的状态信息、终端化小区之间的路径信息，以及终端化小区与基站之间的路径信息，向终端化小区配置路由策略。在此，终端化小区的状态信息包括：地址信息、能耗信息、可用带宽信息；终端化小区之间的路径信息包括：路径时延信息、路径成本信息；终端化小区与基站之间的路径信息包括：路径时延信息、路径成本信息。
在上述任一技术方案中，优选地，还包括：向所述基站配置到网络侧服务器的路由策略；将向所述基站配置的到网络侧服务器的路由策略发送 至所述基站，以使所述基站根据分配的路由策略将所述业务数据路由至所述网络侧服务器。
在该技术方案中，通过向基站配置到网络侧服务器的路由策略，同样可以使SDN控制器在综合全局拓扑的基础上为基站配置最优的路由，以提高基站与网络侧服务器之间的数据传输效率。
在上述任一技术方案中，优选地，还包括：基于所述SDN控制器的能力信息和/或所述目标业务的数据特征，确定所述至少一个终端化小区的数量。其中，SDN控制器的能力信息包括计算能力。
在上述任一技术方案中，优选地，所述触发请求包括：所述任一终端化小区的可用带宽信息、所述目标业务的带宽需求和所述任一终端化小区的剩余电量。
根据本发明的第二方面，还提出了一种终端化小区基于SDN控制的带宽共享方法，包括：任一终端化小区在处理回程链路上的目标业务时，根据所述任一终端化小区的状态信息确定是否需要由其他终端化小区提供共享带宽，其中，所述目标业务的带宽需求大于或等于第一预定阈值；在确定需要由其他终端化小区提供共享带宽时，通过基站向SDN控制器发送共享带宽的触发请求。
在该技术方案中，任一终端化小区通过在处理回程链路上的高带宽业务(即上述目标业务，其带宽需求大于或等于第一预定阈值)时，若确定需要由其他终端化小区提供共享带宽，则通过基站向SDN控制器发送共享带宽的触发请求，使得SDN控制器可以选择向上述任一终端化小区提供共享带宽的至少一个终端化小区，以控制上述任一终端化小区和选择出的至少一个终端化小区共同处理目标业务，进而确保SDN控制器可以将多个T-SC在回程链路上的带宽资源捆绑起来提供给该高带宽业务使用，保证了T-SC之间的无线回程共享机制能够得到应用，实现了灵活配置回程链路上的带宽资源的技术效果。
在上述技术方案中，优选地，根据所述任一终端化小区的状态信息确定是否需要由其他终端化小区提供共享带宽的步骤，具体包括：在所述任一终端化小区的可用带宽不能满足所述目标业务的带宽需求，和/或所述 任一终端化小区的剩余电量低于第一预定电量值时，确定需要由其他终端化小区提供共享带宽。
在上述任一技术方案中，优选地，还包括：判断所述任一终端化小区的可用带宽是否大于或等于第二预定阈值，并判断所述任一终端化小区的剩余电量是否大于或等于第二预定电量值；在判定所述任一终端化小区的可用带宽大于或等于所述第二预定阈值，且所述任一终端化小区的剩余电量大于或等于第二预定电量值时，通过所述基站向所述SDN控制器发送所述任一终端化小区的信息，以供所述SDN控制器确定是否选择所述任一终端化小区向其他终端化小区提供共享带宽。
在该技术方案中，当任一终端化小区的可用带宽较多(即大于或等于第二预定阈值)，且剩余电量也较多(即大于或等于第二预定电量值)时，可以向SDN控制器发送自身的信息，以便于SDN控制器确定是否选择其向其他终端化小区提供共享带宽。
根据本发明的第三方面，还提出了一种终端化小区基于SDN控制的带宽共享方法，包括：基站获取处理回程链路上的目标业务的任一终端化小区的状态信息，并根据所述任一终端化小区的状态信息和所述基站自身的状态信息，确定是否需要由其他终端化小区向所述任一终端化小区提供共享带宽，其中，所述目标业务的带宽需求大于或等于第一预定阈值；在确定需要由其他终端化小区向所述任一终端化小区提供共享带宽时，向SDN控制器发送共享带宽的触发请求。
在该技术方案中，基站通过在确定需要由其他终端化小区向上述任一终端化小区提供共享带宽时，向SDN控制器发送共享带宽的触发请求，使得SDN控制器可以选择向上述任一终端化小区提供共享带宽的至少一个终端化小区，以控制上述任一终端化小区和选择出的至少一个终端化小区共同处理目标业务，进而确保SDN控制器可以将多个T-SC在回程链路上的带宽资源捆绑起来提供给该高带宽业务使用，保证了T-SC之间的无线回程共享机制能够得到应用，实现了灵活配置回程链路上的带宽资源的技术效果。
在上述技术方案中，优选地，根据所述任一终端化小区的状态信息和 所述基站自身的状态信息，确定是否需要由其他终端化小区向所述任一终端化小区提供共享带宽的步骤，具体包括：
在所述任一终端化小区的可用带宽不能满足所述目标业务的带宽需求，且所述基站的可用带宽不足以分配给所述任一终端化小区时，或在所述基站向所述任一终端化小区提供带宽的代价高于预期时，确定需要由其他终端化小区向所述任一终端化小区提供共享带宽。
其中，优选地，根据所述基站的网络状态和所述目标业务的性能要求确定向所述任一终端化小区提供带宽的代价，其中，
所述网络状态包括网络容量和网络负荷，所述目标业务的性能要求包括带宽要求、时延要求、服务质量要求。
需要注意的是：此处所述的“提供带宽的代价”主要考虑了移动互联网业务高带宽、低时延、高QoS的特征，若某个终端化小区的无线回程不够理想，将无法满足业务需求，并且基站需要牺牲网络容量来保证该回程链路的资源，因此基站需要综合考虑来确定提供带宽的代价。
在上述任一技术方案中，优选地，还包括：判断是否接收到所述任一终端化小区发送的共享带宽的触发请求；在判定接收到所述任一终端化小区发送的共享带宽的触发请求时，将所述共享带宽的触发请求转发至所述SDN控制器。
在该技术方案中，共享带宽的触发请求是由任一终端化小区来发送的，基站作为任一终端化小区和SDN控制器之间的中转设备。
在上述任一技术方案中，优选地，还包括：接收所述SDN控制器向所述基站、所述任一终端化小区，以及为所述任一终端化小区提供共享带宽的至少一个终端化小区中的每个终端化小区分别配置的路由策略；将所述SDN控制器向所述任一终端化小区和所述每个终端化小区配置的路由策略分别转发至相应的终端化小区。
在该技术方案中，通过接收SDN控制器向基站配置的路由策略，使得基站能够根据SDN控制器分配的最优路由(SDN控制器可以综合全局拓扑来为基站配置最优的路由)来和网络侧服务器通讯，提高基站与网络侧服务器之间的路由效率；而通过将SDN控制器向上述任一终端化小区 和上述至少一个终端化小区中的每个终端化小区配置路由策略转发至相应的终端化小区，使得上述任一终端化小区和上述至少一个终端化小区中的每个终端化小区能够根据SDN控制器配置的最优路由(SDN控制器可以综合全局拓扑灵活地为上述任一终端化小区和上述至少一个终端化小区中的每个终端化小区配置最优的路由)来和基站进行通讯，提高了终端化小区与基站之间的数据传输效率。
根据本发明的第四方面，还提出了一种终端化小区基于SDN控制的带宽共享装置，适用于SDN控制器，包括：确定单元，设置为确定是否接收到共享带宽的触发请求，所述触发请求表明任一终端化小区在处理回程链路上的目标业务时，需要由其他终端化小区提供共享带宽，且所述目标业务的带宽需求大于或等于第一预定阈值；选择单元，设置为在所述确定单元确定接收到所述触发请求时，选择出向所述任一终端化小区提供共享带宽的至少一个终端化小区；控制单元，设置为控制所述任一终端化小区和所述至少一个终端化小区共同处理所述目标业务。
在该技术方案中，SDN控制器通过在接收到共享带宽的触发请求时，选择向上述任一终端化小区提供共享带宽的至少一个终端化小区，以控制上述任一终端化小区和选择出的至少一个终端化小区共同处理目标业务，使得对于任一T-SC回程链路上的高带宽业务(即上述的目标业务，其带宽需求大于或等于第一预定阈值)，SDN控制器可以将多个T-SC在回程链路上的带宽资源捆绑起来提供给该高带宽业务使用，保证了T-SC之间的无线回程共享机制能够得到应用，实现了灵活配置回程链路上的带宽资源的技术效果。
在上述技术方案中，优选地，所述控制单元包括：配置单元，设置为向所述至少一个终端化小区中的每个终端化小区和所述任一终端化小区分别配置业务数据的路由策略；发送单元，设置为将所述配置单元向所述任一终端化小区和所述每个终端化小区分别配置的路由策略发送至为所述任一终端化小区和所述至少一个终端化小区提供回程链路的基站，由所述基站分别转发至相应的终端化小区，以使所述任一终端化小区和所述每个终端化小区根据分别分配的路由策略共同将所述目标业务的业务数据路由至 所述基站。
在该技术方案中，通过向上述任一终端化小区和上述至少一个终端化小区中的每个终端化小区配置路由策略，使得SDN控制器能够综合全局拓扑灵活地为上述任一终端化小区和上述至少一个终端化小区中的每个终端化小区配置最优的路由，以提高终端化小区与基站之间的数据传输效率。
具体地，可以根据终端化小区的状态信息、终端化小区之间的路径信息，以及终端化小区与基站之间的路径信息，向终端化小区配置路由策略。在此，终端化小区的状态信息包括：地址信息、能耗信息、可用带宽信息；终端化小区之间的路径信息包括：路径时延信息、路径成本信息；终端化小区与基站之间的路径信息包括：路径时延信息、路径成本信息。
在上述任一技术方案中，优选地，所述配置单元还设置为，向所述基站配置到网络侧服务器的路由策略；所述发送单元还设置为，将所述配置单元向所述基站配置的到网络侧服务器的路由策略发送至所述基站，以使所述基站根据分配的路由策略将所述业务数据路由至所述网络侧服务器。
在该技术方案中，通过向基站配置到网络侧服务器的路由策略，同样可以使SDN控制器在综合全局拓扑的基础上为基站配置最优的路由，以提高基站与网络侧服务器之间的数据传输效率。
在上述任一技术方案中，优选地，所述选择单元还设置为：基于所述SDN控制器的能力信息和/或所述目标业务的数据特征，确定所述至少一个终端化小区的数量。
在上述任一技术方案中，优选地，所述触发请求包括：所述任一终端化小区的可用带宽信息、所述目标业务的带宽需求和所述任一终端化小区的剩余电量。
根据本发明的第五方面，还提出了一种终端化小区基于SDN控制的带宽共享装置，适用于任一终端化小区，包括：确定单元，设置为在任一终端化小区处理回程链路上的目标业务时，根据所述任一终端化小区的状态信息确定是否需要由其他终端化小区提供共享带宽，其中，所述目标业务的带宽需求大于或等于第一预定阈值；发送单元，设置为在所述确定单 元确定需要由其他终端化小区提供共享带宽时，通过基站向SDN控制器发送共享带宽的触发请求。
在该技术方案中，任一终端化小区通过在处理回程链路上的高带宽业务(即上述目标业务，其带宽需求大于或等于第一预定阈值)时，若确定需要由其他终端化小区提供共享带宽，则通过基站向SDN控制器发送共享带宽的触发请求，使得SDN控制器可以选择向上述任一终端化小区提供共享带宽的至少一个终端化小区，以控制上述任一终端化小区和选择出的至少一个终端化小区共同处理目标业务，进而确保SDN控制器可以将多个T-SC在回程链路上的带宽资源捆绑起来提供给该高带宽业务使用，保证了T-SC之间的无线回程共享机制能够得到应用，实现了灵活配置回程链路上的带宽资源的技术效果。
在上述技术方案中，优选地，所述确定单元具体设置为：在所述任一终端化小区的可用带宽不能满足所述目标业务的带宽需求，和/或所述任一终端化小区的剩余电量低于第一预定电量值时，确定需要由其他终端化小区提供共享带宽。
在上述任一技术方案中，优选地，还包括：判断单元，设置为判断所述任一终端化小区的可用带宽是否大于或等于第二预定阈值，并判断所述任一终端化小区的剩余电量是否大于或等于第二预定电量值；所述发送单元还设置为，在所述判断单元判定所述任一终端化小区的可用带宽大于或等于所述第二预定阈值，且所述任一终端化小区的剩余电量大于或等于第二预定电量值时，通过所述基站向所述SDN控制器发送所述任一终端化小区的信息，以供所述SDN控制器确定是否选择所述任一终端化小区向其他终端化小区提供共享带宽。
在该技术方案中，当任一终端化小区的可用带宽较多(即大于或等于第二预定阈值)，且剩余电量也较多(即大于或等于第二预定电量值)时，可以向SDN控制器发送自身的信息，以便于SDN控制器确定是否选择其向其他终端化小区提供共享带宽。
根据本发明的第六方面，还提出了一种终端化小区基于SDN控制的带宽共享装置，适用于基站，包括：获取单元，设置为获取处理回程链路 上的目标业务的任一终端化小区的状态信息，其中，所述目标业务的带宽需求大于或等于第一预定阈值；确定单元，设置为根据所述任一终端化小区的状态信息和所述基站自身的状态信息，确定是否需要由其他终端化小区向所述任一终端化小区提供共享带宽；发送单元，设置为在所述确定单元确定需要由其他终端化小区向所述任一终端化小区提供共享带宽时，向SDN控制器发送共享带宽的触发请求。
在该技术方案中，基站通过在确定需要由其他终端化小区向上述任一终端化小区提供共享带宽时，向SDN控制器发送共享带宽的触发请求，使得SDN控制器可以选择向上述任一终端化小区提供共享带宽的至少一个终端化小区，以控制上述任一终端化小区和选择出的至少一个终端化小区共同处理目标业务，进而确保SDN控制器可以将多个T-SC在回程链路上的带宽资源捆绑起来提供给该高带宽业务使用，保证了T-SC之间的无线回程共享机制能够得到应用，实现了灵活配置回程链路上的带宽资源的技术效果。
在上述技术方案中，优选地，所述确定单元具体设置为：在所述任一终端化小区的可用带宽不能满足所述目标业务的带宽需求，且所述基站的可用带宽不足以分配给所述任一终端化小区时，或在所述基站向所述任一终端化小区提供带宽的代价高于预期时，确定需要由其他终端化小区向所述任一终端化小区提供共享带宽。
其中，优选地，所述确定单元具体还设置为：根据所述基站的网络状态和所述目标业务的性能要求确定向所述任一终端化小区提供带宽的代价，其中，所述网络状态包括网络容量和网络负荷；所述目标业务的性能要求包括带宽要求、时延要求、服务质量要求。
需要注意的是：此处所述的“提供带宽的代价”主要考虑了移动互联网业务高带宽、低时延、高QoS的特征，若某个终端化小区的无线回程不够理想，将无法满足业务需求，并且基站需要牺牲网络容量来保证该回程链路的资源，因此基站需要综合考虑来确定提供带宽的代价。
在上述任一技术方案中，优选地，还包括：判断单元，设置为判断是否接收到所述任一终端化小区发送的共享带宽的触发请求；所述发送单元 还设置为，在所述判断单元判定接收到所述任一终端化小区发送的共享带宽的触发请求时，将所述共享带宽的触发请求转发至所述SDN控制器。
在该技术方案中，共享带宽的触发请求是由任一终端化小区来发送的，基站作为任一终端化小区和SDN控制器之间的中转设备。
在上述任一技术方案中，优选地，还包括：接收单元，设置为接收所述SDN控制器向所述基站、所述任一终端化小区，以及为所述任一终端化小区提供共享带宽的至少一个终端化小区中的每个终端化小区分别配置的路由策略；所述发送单元还设置为，将所述SDN控制器向所述任一终端化小区和所述每个终端化小区配置的路由策略分别转发至相应的终端化小区。
在该技术方案中，通过接收SDN控制器向基站配置的路由策略，使得基站能够根据SDN控制器分配的最优路由(SDN控制器可以综合全局拓扑来为基站配置最优的路由)来和网络侧服务器通讯，提高基站与网络侧服务器之间的路由效率；而通过将SDN控制器向上述任一终端化小区和上述至少一个终端化小区中的每个终端化小区配置路由策略转发至相应的终端化小区，使得上述任一终端化小区和上述至少一个终端化小区中的每个终端化小区能够根据SDN控制器配置的最优路由(SDN控制器可以综合全局拓扑灵活地为上述任一终端化小区和上述至少一个终端化小区中的每个终端化小区配置最优的路由)来和基站进行通讯，提高了终端化小区与基站之间的数据传输效率。
根据本发明的第七方面，还提出了一种SDN控制器，包括：如上述第四方面所述的终端化小区基于SDN控制的带宽共享装置。
根据本发明的第八方面，还提出了一种终端化小区，包括：如上述第五方面所述的终端化小区基于SDN控制的带宽共享装置。
根据本发明的第九方面，还提出了一种基站，包括：如上述第六方面所述的终端化小区基于SDN控制的带宽共享装置。
通过以上技术方案，使得SDN控制器可以将多个T-SC在回程链路上的带宽资源捆绑起来提供给高带宽业务使用，保证了T-SC之间的无线回程共享机制能够得到应用，实现了灵活配置回程链路上的带宽资源的技术 效果。
附图说明
图1示出了三种Small Cell方案的网络架构示意图；
图2示出了根据本发明的第一个实施例的终端化小区基于SDN控制的带宽共享方法的示意流程图；
图3示出了根据本发明的第一个实施例的终端化小区基于SDN控制的带宽共享装置的示意框图；
图4示出了根据本发明的实施例的SDN控制器的示意框图；
图5示出了根据本发明的第二个实施例的终端化小区基于SDN控制的带宽共享方法的示意流程图；
图6示出了根据本发明的第二个实施例的终端化小区基于SDN控制的带宽共享装置的示意框图；
图7示出了根据本发明的实施例的终端化小区的示意框图；
图8示出了根据本发明的第三个实施例的终端化小区基于SDN控制的带宽共享方法的示意流程图；
图9示出了根据本发明的第三个实施例的终端化小区基于SDN控制的带宽共享装置的示意框图；
图10示出了根据本发明的实施例的基站的示意框图；
图11示出了根据本发明的实施例的带宽共享的场景示意图；
图12示出了根据本发明的实施例的T-SC触发带宽共享的流程示意图；
图13示出了根据本发明的实施例的eNB触发带宽共享的流程示意图；
图14示出了根据本发明的实施例的另一种SDN控制器的示意框图；
图15示出了根据本发明的实施例的另一种终端化小区的示意框图；
图16示出了根据本发明的实施例的另一种基站的示意框图。
具体实施方式
为了能够更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施方式对本发明进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是，本发明还可以采用其他不同于在此描述的其他方式来实施，因此，本发明的保护范围并不受下面公开的具体实施例的限制。
图2示出了根据本发明的第一个实施例的终端化小区基于SDN控制的带宽共享方法的示意流程图。
如图2所示，根据本发明的第一个实施例的终端化小区基于SDN控制的带宽共享方法，包括：
步骤202，SDN控制器确定是否接收到共享带宽的触发请求，所述触发请求表明任一终端化小区在处理回程链路上的目标业务时，需要由其他终端化小区提供共享带宽，且所述目标业务的带宽需求大于或等于第一预定阈值；
步骤204，在确定接收到所述触发请求时，选择出向所述任一终端化小区提供共享带宽的至少一个终端化小区；
步骤206，控制所述任一终端化小区和所述至少一个终端化小区共同处理所述目标业务。
在该技术方案中，SDN控制器通过在接收到共享带宽的触发请求时，选择向上述任一终端化小区提供共享带宽的至少一个终端化小区，以控制上述任一终端化小区和选择出的至少一个终端化小区共同处理目标业务，使得对于任一T-SC回程链路上的高带宽业务(即上述的目标业务，其带宽需求大于或等于第一预定阈值)，SDN控制器可以将多个T-SC在回程链路上的带宽资源捆绑起来提供给该高带宽业务使用，保证了T-SC之间的无线回程共享机制能够得到应用，实现了灵活配置回程链路上的带宽资源的技术效果。
在上述技术方案中，优选地，控制所述任一终端化小区和所述至少一个终端化小区共同处理所述目标业务的步骤，具体包括：向所述至少一个终端化小区中的每个终端化小区和所述任一终端化小区分别配置业务数据 的路由策略；将向所述任一终端化小区和所述每个终端化小区分别配置的路由策略发送至为所述任一终端化小区和所述至少一个终端化小区提供回程链路的基站，由所述基站分别转发至相应的终端化小区，以使所述任一终端化小区和所述每个终端化小区根据分别分配的路由策略共同将所述目标业务的业务数据路由至所述基站。
在该技术方案中，通过向上述任一终端化小区和上述至少一个终端化小区中的每个终端化小区配置路由策略，使得SDN控制器能够综合全局拓扑灵活地为上述任一终端化小区和上述至少一个终端化小区中的每个终端化小区配置最优的路由，以提高终端化小区与基站之间的数据传输效率。
具体地，可以根据终端化小区的状态信息、终端化小区之间的路径信息，以及终端化小区与基站之间的路径信息，向终端化小区配置路由策略。在此，终端化小区的状态信息包括：地址信息、能耗信息、可用带宽信息；终端化小区之间的路径信息包括：路径时延信息、路径成本信息；终端化小区与基站之间的路径信息包括：路径时延信息、路径成本信息。
在上述任一技术方案中，优选地，还包括：向所述基站配置到网络侧服务器的路由策略；将向所述基站配置的到网络侧服务器的路由策略发送至所述基站，以使所述基站根据分配的路由策略将所述业务数据路由至所述网络侧服务器。
在该技术方案中，通过向基站配置到网络侧服务器的路由策略，同样可以使SDN控制器在综合全局拓扑的基础上为基站配置最优的路由，以提高基站与网络侧服务器之间的数据传输效率。
在上述任一技术方案中，优选地，还包括：基于所述SDN控制器的能力信息和/或所述目标业务的数据特征，确定所述至少一个终端化小区的数量。其中，SDN控制器的能力信息包括计算能力。
在上述任一技术方案中，优选地，所述触发请求包括：所述任一终端化小区的可用带宽信息、所述目标业务的带宽需求和所述任一终端化小区的剩余电量。
图3示出了根据本发明的第一个实施例的终端化小区基于SDN控制 的带宽共享装置的示意框图。
如图3所示，根据本发明的第一个实施例的终端化小区基于SDN控制的带宽共享装置300，适用于SDN控制器，包括：确定单元302、选择单元304和控制单元306。
其中，确定单元302，设置为确定是否接收到共享带宽的触发请求，所述触发请求表明任一终端化小区在处理回程链路上的目标业务时，需要由其他终端化小区提供共享带宽，且所述目标业务的带宽需求大于或等于第一预定阈值；选择单元304，设置为在所述确定单元302确定接收到所述触发请求时，选择出向所述任一终端化小区提供共享带宽的至少一个终端化小区；控制单元306，设置为控制所述任一终端化小区和所述至少一个终端化小区共同处理所述目标业务。
在该技术方案中，SDN控制器通过在接收到共享带宽的触发请求时，选择向上述任一终端化小区提供共享带宽的至少一个终端化小区，以控制上述任一终端化小区和选择出的至少一个终端化小区共同处理目标业务，使得对于任一T-SC回程链路上的高带宽业务(即上述的目标业务，其带宽需求大于或等于第一预定阈值)，SDN控制器可以将多个T-SC在回程链路上的带宽资源捆绑起来提供给该高带宽业务使用，保证了T-SC之间的无线回程共享机制能够得到应用，实现了灵活配置回程链路上的带宽资源的技术效果。
在上述技术方案中，优选地，所述控制单元306包括：配置单元3062，设置为向所述至少一个终端化小区中的每个终端化小区和所述任一终端化小区分别配置业务数据的路由策略；发送单元3064，设置为将所述配置单元3062向所述任一终端化小区和所述每个终端化小区分别配置的路由策略发送至为所述任一终端化小区和所述至少一个终端化小区提供回程链路的基站，由所述基站分别转发至相应的终端化小区，以使所述任一终端化小区和所述每个终端化小区根据分别分配的路由策略共同将所述目标业务的业务数据路由至所述基站。
在该技术方案中，通过向上述任一终端化小区和上述至少一个终端化小区中的每个终端化小区配置路由策略，使得SDN控制器能够综合全局 拓扑灵活地为上述任一终端化小区和上述至少一个终端化小区中的每个终端化小区配置最优的路由，以提高终端化小区与基站之间的数据传输效率。
具体地，可以根据终端化小区的状态信息、终端化小区之间的路径信息，以及终端化小区与基站之间的路径信息，向终端化小区配置路由策略。在此，终端化小区的状态信息包括：地址信息、能耗信息、可用带宽信息；终端化小区之间的路径信息包括：路径时延信息、路径成本信息；终端化小区与基站之间的路径信息包括：路径时延信息、路径成本信息。
在上述任一技术方案中，优选地，所述配置单元3062还设置为，向所述基站配置到网络侧服务器的路由策略；所述发送单元3064还设置为，将所述配置单元3062向所述基站配置的到网络侧服务器的路由策略发送至所述基站，以使所述基站根据分配的路由策略将所述业务数据路由至所述网络侧服务器。
在该技术方案中，通过向基站配置到网络侧服务器的路由策略，同样可以使SDN控制器在综合全局拓扑的基础上为基站配置最优的路由，以提高基站与网络侧服务器之间的数据传输效率。
在上述任一技术方案中，优选地，所述选择单元304还设置为：基于所述SDN控制器的能力信息和/或所述目标业务的数据特征，确定所述至少一个终端化小区的数量。
在上述任一技术方案中，优选地，所述触发请求包括：所述任一终端化小区的可用带宽信息、所述目标业务的带宽需求和所述任一终端化小区的剩余电量。
图4示出了根据本发明的实施例的SDN控制器的示意框图。
如图4所示，根据本发明的实施例的SDN控制器400，包括：如图3中所示的终端化小区基于SDN控制的带宽共享装置300。
图5示出了根据本发明的第二个实施例的终端化小区基于SDN控制的带宽共享方法的示意流程图。
如图5所示，根据本发明的第二个实施例的终端化小区基于SDN控制的带宽共享方法，包括：
步骤502，任一终端化小区在处理回程链路上的目标业务时，根据所述任一终端化小区的状态信息确定是否需要由其他终端化小区提供共享带宽，其中，所述目标业务的带宽需求大于或等于第一预定阈值；
步骤504，在确定需要由其他终端化小区提供共享带宽时，通过基站向SDN控制器发送共享带宽的触发请求。
在该技术方案中，任一终端化小区通过在处理回程链路上的高带宽业务(即上述目标业务，其带宽需求大于或等于第一预定阈值)时，若确定需要由其他终端化小区提供共享带宽，则通过基站向SDN控制器发送共享带宽的触发请求，使得SDN控制器可以选择向上述任一终端化小区提供共享带宽的至少一个终端化小区，以控制上述任一终端化小区和选择出的至少一个终端化小区共同处理目标业务，进而确保SDN控制器可以将多个T-SC在回程链路上的带宽资源捆绑起来提供给该高带宽业务使用，保证了T-SC之间的无线回程共享机制能够得到应用，实现了灵活配置回程链路上的带宽资源的技术效果。
在上述技术方案中，优选地，根据所述任一终端化小区的状态信息确定是否需要由其他终端化小区提供共享带宽的步骤，具体包括：在所述任一终端化小区的可用带宽不能满足所述目标业务的带宽需求，和/或所述任一终端化小区的剩余电量低于第一预定电量值时，确定需要由其他终端化小区提供共享带宽。
在上述任一技术方案中，优选地，还包括：判断所述任一终端化小区的可用带宽是否大于或等于第二预定阈值，并判断所述任一终端化小区的剩余电量是否大于或等于第二预定电量值；在判定所述任一终端化小区的可用带宽大于或等于所述第二预定阈值，且所述任一终端化小区的剩余电量大于或等于第二预定电量值时，通过所述基站向所述SDN控制器发送所述任一终端化小区的信息，以供所述SDN控制器确定是否选择所述任一终端化小区向其他终端化小区提供共享带宽。
在该技术方案中，当任一终端化小区的可用带宽较多(即大于或等于第二预定阈值)，且剩余电量也较多(即大于或等于第二预定电量值)时，可以向SDN控制器发送自身的信息，以便于SDN控制器确定是否选 择其向其他终端化小区提供共享带宽。
图6示出了根据本发明的第二个实施例的终端化小区基于SDN控制的带宽共享装置的示意框图。
如图6所示，根据本发明的第二个实施例的终端化小区基于SDN控制的带宽共享装置600，适用于任一终端化小区，包括：确定单元602，设置为在任一终端化小区处理回程链路上的目标业务时，根据所述任一终端化小区的状态信息确定是否需要由其他终端化小区提供共享带宽，其中，所述目标业务的带宽需求大于或等于第一预定阈值；发送单元604，设置为在所述确定单元602确定需要由其他终端化小区提供共享带宽时，通过基站向SDN控制器发送共享带宽的触发请求。
在该技术方案中，任一终端化小区通过在处理回程链路上的高带宽业务(即上述目标业务，其带宽需求大于或等于第一预定阈值)时，若确定需要由其他终端化小区提供共享带宽，则通过基站向SDN控制器发送共享带宽的触发请求，使得SDN控制器可以选择向上述任一终端化小区提供共享带宽的至少一个终端化小区，以控制上述任一终端化小区和选择出的至少一个终端化小区共同处理目标业务，进而确保SDN控制器可以将多个T-SC在回程链路上的带宽资源捆绑起来提供给该高带宽业务使用，保证了T-SC之间的无线回程共享机制能够得到应用，实现了灵活配置回程链路上的带宽资源的技术效果。
在上述技术方案中，优选地，所述确定单元602具体设置为：在所述任一终端化小区的可用带宽不能满足所述目标业务的带宽需求，和/或所述任一终端化小区的剩余电量低于第一预定电量值时，确定需要由其他终端化小区提供共享带宽。
在上述任一技术方案中，优选地，还包括：判断单元606，设置为判断所述任一终端化小区的可用带宽是否大于或等于第二预定阈值，并判断所述任一终端化小区的剩余电量是否大于或等于第二预定电量值；所述发送单元604还设置为，在所述判断单元606判定所述任一终端化小区的可用带宽大于或等于所述第二预定阈值，且所述任一终端化小区的剩余电量大于或等于第二预定电量值时，通过所述基站向所述SDN控制器发送所 述任一终端化小区的信息，以供所述SDN控制器确定是否选择所述任一终端化小区向其他终端化小区提供共享带宽。
在该技术方案中，当任一终端化小区的可用带宽较多(即大于或等于第二预定阈值)，且剩余电量也较多(即大于或等于第二预定电量值)时，可以向SDN控制器发送自身的信息，以便于SDN控制器确定是否选择其向其他终端化小区提供共享带宽。
图7示出了根据本发明的实施例的终端化小区的示意框图。
如图7所示，根据本发明的实施例的终端化小区700，包括：如图6中所示的终端化小区基于SDN控制的带宽共享装置600。
图8示出了根据本发明的第三个实施例的终端化小区基于SDN控制的带宽共享方法的示意流程图。
如图8所示，根据本发明的第三个实施例的终端化小区基于SDN控制的带宽共享方法，包括：
步骤802，基站获取处理回程链路上的目标业务的任一终端化小区的状态信息，并根据所述任一终端化小区的状态信息和所述基站自身的状态信息，确定是否需要由其他终端化小区向所述任一终端化小区提供共享带宽，其中，所述目标业务的带宽需求大于或等于第一预定阈值；
步骤804，在确定需要由其他终端化小区向所述任一终端化小区提供共享带宽时，向SDN控制器发送共享带宽的触发请求。
在该技术方案中，基站通过在确定需要由其他终端化小区向上述任一终端化小区提供共享带宽时，向SDN控制器发送共享带宽的触发请求，使得SDN控制器可以选择向上述任一终端化小区提供共享带宽的至少一个终端化小区，以控制上述任一终端化小区和选择出的至少一个终端化小区共同处理目标业务，进而确保SDN控制器可以将多个T-SC在回程链路上的带宽资源捆绑起来提供给该高带宽业务使用，保证了T-SC之间的无线回程共享机制能够得到应用，实现了灵活配置回程链路上的带宽资源的技术效果。
在上述技术方案中，优选地，根据所述任一终端化小区的状态信息和所述基站自身的状态信息，确定是否需要由其他终端化小区向所述任一终 端化小区提供共享带宽的步骤，具体包括：
在所述任一终端化小区的可用带宽不能满足所述目标业务的带宽需求，且所述基站的可用带宽不足以分配给所述任一终端化小区时，或在所述基站向所述任一终端化小区提供带宽的代价高于预期时，确定需要由其他终端化小区向所述任一终端化小区提供共享带宽。
其中，优选地，根据所述基站的网络状态和所述目标业务的性能要求确定向所述任一终端化小区提供带宽的代价，其中，
所述网络状态包括网络容量和网络负荷，所述目标业务的性能要求包括带宽要求、时延要求、服务质量要求。
需要注意的是：此处所述的“提供带宽的代价”主要考虑了移动互联网业务高带宽、低时延、高QoS的特征，若某个终端化小区的无线回程不够理想，将无法满足业务需求，并且基站需要牺牲网络容量来保证该回程链路的资源，因此基站需要综合考虑来确定提供带宽的代价。
在上述任一技术方案中，优选地，还包括：判断是否接收到所述任一终端化小区发送的共享带宽的触发请求；在判定接收到所述任一终端化小区发送的共享带宽的触发请求时，将所述共享带宽的触发请求转发至所述SDN控制器。
在该技术方案中，共享带宽的触发请求是由任一终端化小区来发送的，基站作为任一终端化小区和SDN控制器之间的中转设备。
在上述任一技术方案中，优选地，还包括：接收所述SDN控制器向所述基站、所述任一终端化小区，以及为所述任一终端化小区提供共享带宽的至少一个终端化小区中的每个终端化小区分别配置的路由策略；将所述SDN控制器向所述任一终端化小区和所述每个终端化小区配置的路由策略分别转发至相应的终端化小区。
在该技术方案中，通过接收SDN控制器向基站配置的路由策略，使得基站能够根据SDN控制器分配的最优路由(SDN控制器可以综合全局拓扑来为基站配置最优的路由)来和网络侧服务器通讯，提高基站与网络侧服务器之间的路由效率；而通过将SDN控制器向上述任一终端化小区和上述至少一个终端化小区中的每个终端化小区配置路由策略转发至相应 的终端化小区，使得上述任一终端化小区和上述至少一个终端化小区中的每个终端化小区能够根据SDN控制器配置的最优路由(SDN控制器可以综合全局拓扑灵活地为上述任一终端化小区和上述至少一个终端化小区中的每个终端化小区配置最优的路由)来和基站进行通讯，提高了终端化小区与基站之间的数据传输效率。
图9示出了根据本发明的第三个实施例的终端化小区基于SDN控制的带宽共享装置的示意框图。
如图9所示，根据本发明的第三个实施例的终端化小区基于SDN控制的带宽共享装置900，适用于基站，包括：获取单元902、确定单元904和发送单元906。
其中，获取单元902，设置为获取处理回程链路上的目标业务的任一终端化小区的状态信息，其中，所述目标业务的带宽需求大于或等于第一预定阈值；确定单元904，设置为根据所述任一终端化小区的状态信息和所述基站自身的状态信息，确定是否需要由其他终端化小区向所述任一终端化小区提供共享带宽；发送单元906，设置为在所述确定单元904确定需要由其他终端化小区向所述任一终端化小区提供共享带宽时，向SDN控制器发送共享带宽的触发请求。
在该技术方案中，基站通过在确定需要由其他终端化小区向上述任一终端化小区提供共享带宽时，向SDN控制器发送共享带宽的触发请求，使得SDN控制器可以选择向上述任一终端化小区提供共享带宽的至少一个终端化小区，以控制上述任一终端化小区和选择出的至少一个终端化小区共同处理目标业务，进而确保SDN控制器可以将多个T-SC在回程链路上的带宽资源捆绑起来提供给该高带宽业务使用，保证了T-SC之间的无线回程共享机制能够得到应用，实现了灵活配置回程链路上的带宽资源的技术效果。
在上述技术方案中，优选地，所述确定单元904具体设置为：在所述任一终端化小区的可用带宽不能满足所述目标业务的带宽需求，且所述基站的可用带宽不足以分配给所述任一终端化小区时，或在所述基站向所述任一终端化小区提供带宽的代价高于预期时，确定需要由其他终端化小区 向所述任一终端化小区提供共享带宽。
其中，优选地，所述确定单元904具体还设置为：根据所述基站的网络状态和所述目标业务的性能要求确定向所述任一终端化小区提供带宽的代价，其中，所述网络状态包括网络容量和网络负荷；所述目标业务的性能要求包括带宽要求、时延要求、服务质量要求。
需要注意的是：此处所述的“提供带宽的代价”主要考虑了移动互联网业务高带宽、低时延、高QoS的特征，若某个终端化小区的无线回程不够理想，将无法满足业务需求，并且基站需要牺牲网络容量来保证该回程链路的资源，因此基站需要综合考虑来确定提供带宽的代价。
在上述任一技术方案中，优选地，还包括：判断单元908，设置为判断是否接收到所述任一终端化小区发送的共享带宽的触发请求；所述发送单元906还设置为，在所述判断单元908判定接收到所述任一终端化小区发送的共享带宽的触发请求时，将所述共享带宽的触发请求转发至所述SDN控制器。
在该技术方案中，共享带宽的触发请求是由任一终端化小区来发送的，基站作为任一终端化小区和SDN控制器之间的中转设备。
在上述任一技术方案中，优选地，还包括：接收单元910，设置为接收所述SDN控制器向所述基站、所述任一终端化小区，以及为所述任一终端化小区提供共享带宽的至少一个终端化小区中的每个终端化小区分别配置的路由策略；所述发送单元906还设置为，将所述SDN控制器向所述任一终端化小区和所述每个终端化小区配置的路由策略分别转发至相应的终端化小区。
在该技术方案中，通过接收SDN控制器向基站配置的路由策略，使得基站能够根据SDN控制器分配的最优路由(SDN控制器可以综合全局拓扑来为基站配置最优的路由)来和网络侧服务器通讯，提高基站与网络侧服务器之间的路由效率；而通过将SDN控制器向上述任一终端化小区和上述至少一个终端化小区中的每个终端化小区配置路由策略转发至相应的终端化小区，使得上述任一终端化小区和上述至少一个终端化小区中的每个终端化小区能够根据SDN控制器配置的最优路由(SDN控制器可以 综合全局拓扑灵活地为上述任一终端化小区和上述至少一个终端化小区中的每个终端化小区配置最优的路由)来和基站进行通讯，提高了终端化小区与基站之间的数据传输效率。
图10示出了根据本发明的实施例的基站的示意框图。
如图10所示，根据本发明的实施例的基站1000，包括：如图9中所示的终端化小区基于SDN控制的带宽共享装置900。
综上所述，本发明的技术方案主要是基于T-SC的无线回程共享方案，基本思想是引入SDN应用在终端基于T-SC接入的回程选择，通过T-SC场景中数据面路由配置将多个T-SC的回程资源捆绑起来提供给一个T-SC使用，从而实现灵活的带宽配置。
具体地，在移动环境中，可以将多个T-SC的回程资源捆绑起来提供给一个T-SC下的高带宽业务(如VR/AR/VHD等业务)使用，即这些T-SC的带宽共享出来用于高带宽业务T-SC的数据面路由。如图11所示，在带宽捆绑前，终端1102的数据流通过T-SC 1104到达基站1110，再到达网络侧服务器1112；在带宽捆绑后，即进行带宽共享后，终端1102的高带宽业务的数据流由终端1102到达T-SC 1104，然后分为三部分(以将3个T-SC的带宽进行捆绑为例)：部分1通过T-SC 1104到达基站1110，再到达网络侧服务器1112；部分2通过T-SC 1104到达T-SC 1106，然后通过T-SC 1106到达基站1110，再到达网络侧服务器1112；部分3通过T-SC 1104到达T-SC 1108，然后通过T-SC 1108到达基站1110，再到达网络侧服务器1112。
以下详细说明本发明的具体实现过程：
本发明设想在无线环境下，若存在某个T-SC带宽不足以支持高带宽业务和/或电量不足以支持高带宽业务，同时还存在某些T-SC带宽富余且电量充足，那么就有可能将这些带宽富余且电量充足的T-SC的带宽共享出来用于提供给带宽不足或电流不足的T-SC的高带宽业务数据面路由，以满足高带宽业务的需求。这个可以是由某个T-SC触发的带宽捆绑(即带宽共享)过程，也可以是eNB(基站)触发的带宽捆绑过程，以下分别进行说明：
一、T-SC触发的带宽捆绑过程，具体如图12所示，包括：
步骤1202，初始状态时，某个T-SC(图12中所示的T-SC1)只使用自己的带宽进行业务数据流传输。
步骤1204，T-SC 1判断是否满足触发带宽捆绑的条件，若是，则执行步骤1206。
步骤1206，当T-SC 1判断满足触发带宽捆绑条件时，向SDN控制器请求配置捆绑带宽，携带T-SC 1的业务信息。
其中，触发带宽捆绑的条件是T-SC 1基于自身状态信息(包括其业务带宽、可用带宽、能耗状态等)进行的判断。例如，当T-SC 1处理高带宽业务(即业务带宽超过一定阈值)，且其可用带宽不足以支持高带宽业务时，又或者是T-SC 1电量不足时，可以触发带宽捆绑，以利用一些就近的T-SC回程传输其业务数据。
并且，触发带宽捆绑的请求信令是T-SC 1发送给eNB，再由eNB转发至SDN控制器的，类似于到达MME(Mobility Management Entity，移动性管理实体)的NAS(Non-Access Stratum，非接入层)信令。该请求信令携带了用于带宽捆绑的一些必要的信息，包括T-SC 1的业务带宽、剩余电量、可用带宽等。
步骤1208，SDN控制器收到T-SC 1的请求后，为其从全局最优的角度计算出一个T-SC集合，该集合包括T-SC 1在内总共N个，其他N-1个T-SC一起为T-SC 1提供带宽捆绑。
其中，N(N≥2)的大小选择可以基于不同的准则，比如SDN控制器的计算能力(N不能取的太大)，高带宽业务本身的数据特点(例如虚拟现实VR数据传输可以分为基本部分和增强部分，可以选择不同部分放在不同T-SC上路由)等。
步骤1210，SDN控制器将T-SC 1的业务数据拆分为N份。
步骤1212，SDN控制器配置业务数据的路由策略，并将路由策略下发到eNB和T-SC集合的N个T-SC中(图12中的T-SC 1、T-SC 2、…、T-SC n)。
其中，SDN控制器下发到eNB路由策略信令直接到达eNB，SDN控 制器下发到T-SC的路由策略信令是由eNB转发的，类似于NAS信令。
步骤1214，相应的T-SC和eNB依次执行路由表，则高带宽业务的部分数据流就可以通过不同T-SC的带宽进行传输。
二、eNB触发的带宽捆绑过程，具体如图13所示，包括：
步骤1302，初始状态时，某个T-SC(图13中所示的T-SC1)只使用自己的带宽进行业务数据流传输。
步骤1304，eNB判断是否满足触发带宽捆绑的条件，若是，则执行步骤1306。
步骤1306，当eNB判断满足触发带宽捆绑条件时，向SDN控制器请求配置捆绑带宽，携带T-SC 1的业务信息。
其中，触发带宽捆绑的条件是eNB基于自身状态信息(包括其Uu链路带宽分配情况、带宽提供代价等)的判断。例如，当T-SC 1的可用带宽不能满足高带宽业务的需求，且基站的可用带宽不足以分配给T-SC 1时，或eNB提供代价过高时，触发带宽捆绑，利用一些就近的T-SC回程提供其数据传输的带宽或者降低带宽提供代价。
并且，触发带宽捆绑的请求信令是eNB直接发送到SDN控制器。该请求信令携带了用于带宽捆绑的一些必要的信息，包括T-SC 1的业务带宽、剩余电量、可用带宽等。
步骤1308，SDN控制器收到eNB的请求后，为T-SC 1从全局最优的角度计算出一个T-SC集合，该集合包括T-SC 1在内总共N个，其他N-1个T-SC一起为T-SC 1提供带宽捆绑。
其中，N(N≥2)的大小选择可以基于不同的准则，比如SDN控制器的计算能力(N不能取的太大)，高带宽业务本身的数据特点(例如虚拟现实VR数据传输可以分为基本部分和增强部分，可以选择不同部分放在不同T-SC上路由)等。
步骤1310，SDN控制器将T-SC 1的业务数据拆分为N份。
步骤1312，SDN控制器配置业务数据的路由策略，并将路由策略下发到eNB和T-SC集合的N个T-SC中(图13中的T-SC 1、T-SC 2、…、T-SC n)。
其中，SDN控制器下发到eNB路由策略信令直接到达eNB，SDN控制器下发到T-SC的路由策略信令是由eNB转发的，类似于NAS信令。
步骤1314，相应的T-SC和eNB依次执行路由表，则高带宽业务的部分数据流就可以通过不同T-SC的带宽进行传输。
图14示出了根据本发明的实施例的另一种SDN控制器的示意框图。
如图14所示，本发明实施例中的SDN控制器400包括：至少一个处理器410，例如CPU，至少一个接收器413，至少一个存储器414，至少一个发送器415，至少一个通信总线412。其中，所述通信总线412用于实现这些组件之间的连接通信。其中，所述接收器413和所述发送器415可以是无线接收/发射设备，例如包括天线装置，负责移动信号的接收、发送处理。所述存储器414可以是高速RAM存储器，也可以是非易失性存储器(non-volatile memory)，例如至少一个磁盘存储器。
所述处理器410可执行所述SDN控制器400的操作系统以及安装的各类应用程序、程序代码等，例如，上述的各个单元，包括所述确定单元302、所述选择单元304、所述控制单元306等。
所述存储器414中存储有程序代码，且所述处理器410可通过通信总线412，调用所述存储器414中存储的程序代码以执行相关的功能。例如，图3中所述的各个单元(例如，所述确定单元302、所述选择单元304、所述控制单元306等)是存储在所述存储器414中的程序代码，并由所述处理器410所执行，从而实现所述各个单元的功能以实现带宽共享方法。
在本发明的一个实施例中，所述存储器414存储多个指令，所述多个指令被所述处理器410所执行以实现带宽共享方法。具体而言，所述处理器410确定是否接收到共享带宽的触发请求，所述触发请求表明任一终端化小区在处理回程链路上的目标业务时，需要由其他终端化小区提供共享带宽，且所述目标业务的带宽需求大于或等于第一预定阈值；在确定接收到所述触发请求时，所述处理器410选择出向所述任一终端化小区提供共享带宽的至少一个终端化小区；所述处理器410控制所述任一终端化小区和所述至少一个终端化小区共同处理所述目标业务。
在进一步的实施例中，所述处理器410向所述至少一个终端化小区中的每个终端化小区和所述任一终端化小区分别配置业务数据的路由策略；将向所述任一终端化小区和所述每个终端化小区分别配置的路由策略发送至为所述任一终端化小区和所述至少一个终端化小区提供回程链路的基站，由所述基站分别转发至相应的终端化小区，以使所述任一终端化小区和所述每个终端化小区根据分别分配的路由策略共同将所述目标业务的业务数据路由至所述基站。
在进一步的实施例中，所述处理器410基于所述SDN控制器的能力信息和/或所述目标业务的数据特征，确定所述至少一个终端化小区的数量。
在进一步的实施例中，所述触发请求包括所述任一终端化小区的可用带宽信息、所述目标业务的带宽需求和所述任一终端化小区的剩余电量。
具体地，所述处理器410对上述指令的具体实现方法可参考图2对应实施例中相关步骤的描述，在此不赘述。
图15示出了根据本发明的实施例的另一种终端化小区的示意框图。
如图15所示，根据本发明的实施例的另一种终端化小区700的结构示意框图。本发明实施例中的终端化小区700包括：至少一个处理器710，例如CPU，至少一个接收器713，至少一个存储器714，至少一个发送器715，至少一个通信总线712。其中，所述通信总线712用于实现这些组件之间的连接通信。其中，所述接收器713和所述发送器715可以是无线接收/发射设备，例如包括天线装置，负责移动信号的接收、发送处理。所述存储器714可以是高速RAM存储器，也可以是非易失性存储器(non-volatile memory)，例如至少一个磁盘存储器。
所述处理器710可执行所述终端化小区700的操作系统以及安装的各类应用程序、程序代码等，例如，上述的各个单元，包括所述确定单元602、所述发送单元604、所述判断单元606等。
所述存储器714中存储有程序代码，且所述处理器710可通过通信总线712，调用所述存储器714中存储的程序代码以执行相关的功能。例如，图6 中所述的各个单元(例如，所述确定单元602、所述发送单元604、所述判断单元606等)是存储在所述存储器714中的程序代码，并由所述处理器710所执行，从而实现所述各个单元的功能以实现带宽共享方法。
在本发明的一个实施例中，所述存储器714存储多个指令，所述多个指令被所述处理器710所执行以实现带宽共享方法。具体而言，在任一终端化小区在处理回程链路上的目标业务时，所述处理器710根据所述任一终端化小区的状态信息确定是否需要由其他终端化小区提供共享带宽，其中，所述目标业务的带宽需求大于或等于第一预定阈值；在确定需要由其他终端化小区提供共享带宽时，所述处理器710通过基站向SDN控制器发送共享带宽的触发请求。
在进一步的实施例中，在所述任一终端化小区的可用带宽不能满足所述目标业务的带宽需求，和/或所述任一终端化小区的剩余电量低于第一预定电量值时，所述处理器710确定需要由其他终端化小区提供共享带宽。
在进一步的实施例中，所述处理器710判断所述任一终端化小区的可用带宽是否大于或等于第二预定阈值，并判断所述任一终端化小区的剩余电量是否大于或等于第二预定电量值；在判定所述任一终端化小区的可用带宽大于或等于所述第二预定阈值，且所述任一终端化小区的剩余电量大于或等于第二预定电量值时，所述处理器710通过所述基站向所述SDN控制器发送所述任一终端化小区的信息，以供所述SDN控制器确定是否选择所述任一终端化小区向其他终端化小区提供共享带宽。
具体地，所述处理器710对上述指令的具体实现方法可参考图5对应实施例中相关步骤的描述，在此不赘述。
图16示出了根据本发明的实施例的另一个基站的示意框图。
如图16所示，根据本发明的实施例的另一种基站1000的结构示意框图。本发明实施例中的基站1000包括：至少一个公共处理器1010，例如CPR，至少一个接收器1013，至少一个存储器1014，至少一个发送器1015，至少一个通信总线1012，至少一个交换网络1016。其中，所述通信总 线1012用于实现这些组件之间的连接通信。其中，所述接收器1013和所述发送器1015可以是无线接收/发射设备，例如包括天线装置，负责移动信号的接收、发送处理。所述存储器1014可以是高速RAM存储器，也可以是非易失性存储器(non-volatile memory)，例如至少一个磁盘存储器。所述交换网络1016将完成接口和接口之间的数据、话音业务信道的内部交换。
所述处理器1010可执行所述基站1000的操作系统以及安装的各类应用程序、程序代码等，例如，上述的各个单元，包括所述获取单元902、所述确定单元904、所述发送单元906、所述判断单元908等。
所述存储器1014中存储有程序代码，且所述处理器1010可通过通信总线1012，调用所述存储器1014中存储的程序代码以执行相关的功能。例如，图9中所述的各个单元(例如，所述获取单元902、所述确定单元904、所述发送单元906、所述判断单元908等)是存储在所述存储器1014中的程序代码，并由所述处理器1010所执行，从而实现所述各个单元的功能以实现带宽共享方法。
在本发明的一个实施例中，所述存储器1014存储多个指令，所述多个指令被所述处理器1010所执行以实现带宽共享方法。具体而言，所述处理器1010获取处理回程链路上的目标业务的任一终端化小区的状态信息，并根据所述任一终端化小区的状态信息和所述基站自身的状态信息，确定是否需要由其他终端化小区向所述任一终端化小区提供共享带宽，其中，所述目标业务的带宽需求大于或等于第一预定阈值；在确定需要由其他终端化小区向所述任一终端化小区提供共享带宽时，所述处理器1010向SDN控制器发送共享带宽的触发请求。
在进一步的实施例中，在所述任一终端化小区的可用带宽不能满足所述目标业务的带宽需求，且所述基站的可用带宽不足以分配给所述任一终端化小区时，或在所述基站向所述任一终端化小区提供带宽的代价高于预期时，所述处理器1010确定需要由其他终端化小区向所述任一终端化小区提供共享带宽。
在进一步的实施例中，所述处理器1010根据所述基站的网络状态和所述目标业务的性能要求确定向所述任一终端化小区提供带宽的代价，其 中，所述网络状态包括网络容量和网络负荷，所述目标业务的性能要求包括带宽要求、时延要求、服务质量要求。
在进一步的实施例中，所述处理器1010判断是否接收到所述任一终端化小区发送的共享带宽的触发请求；在判定接收到所述任一终端化小区发送的共享带宽的触发请求时，将所述共享带宽的触发请求转发至所述SDN控制器。
在进一步的实施例中，所述处理器1010接收所述SDN控制器向所述基站、所述任一终端化小区，以及为所述任一终端化小区提供共享带宽的至少一个终端化小区中的每个终端化小区分别配置的路由策略；将所述SDN控制器向所述任一终端化小区和所述每个终端化小区配置的路由策略分别转发至相应的终端化小区。
具体地，所述处理器1010对上述指令的具体实现方法可参考图8对应实施例中相关步骤的描述，在此不赘述。
本发明上述实施例的技术方案可用于在移动环境中，T-SC使用无线承载作为backhaul的场景，通过将多个T-SC的回程资源捆绑起来提供给一个T-SC下的高带宽业务使用，实现了灵活的带宽配置。
本领域技术人员需要理解的是：在上述阐述过程中，将SDN控制器和基站分别作为单独的实体描述了本发明的技术方案。若SDN控制器被集成在基站内，即SDN控制器与基站为一个实体，那么同样适用于本发明的上述技术方案，此时，可以省去基站和SDN控制器之间的交互信令。
以上结合附图详细说明了本发明的技术方案，本发明提出了一种新的终端化小区基于SDN控制的带宽共享方案，使得SDN控制器可以将多个T-SC在回程链路上的带宽资源捆绑起来提供给高带宽业务使用，保证了T-SC之间的无线回程共享机制能够得到应用，实现了灵活配置回程链路上的带宽资源的技术效果。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精 神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (24)

  1. 一种终端化小区基于SDN控制的带宽共享方法，其特征在于，包括：
    SDN控制器确定是否接收到共享带宽的触发请求，所述触发请求表明任一终端化小区在处理回程链路上的目标业务时，需要由其他终端化小区提供共享带宽，且所述目标业务的带宽需求大于或等于第一预定阈值；
    在确定接收到所述触发请求时，选择出向所述任一终端化小区提供共享带宽的至少一个终端化小区；
    控制所述任一终端化小区和所述至少一个终端化小区共同处理所述目标业务。
  2. 根据权利要求1所述的终端化小区基于SDN控制的带宽共享方法，其特征在于，控制所述任一终端化小区和所述至少一个终端化小区共同处理所述目标业务的步骤，具体包括：
    向所述至少一个终端化小区中的每个终端化小区和所述任一终端化小区分别配置业务数据的路由策略；
    将向所述任一终端化小区和所述每个终端化小区分别配置的路由策略发送至为所述任一终端化小区和所述至少一个终端化小区提供回程链路的基站，由所述基站分别转发至相应的终端化小区，以使所述任一终端化小区和所述每个终端化小区根据分别分配的路由策略共同将所述目标业务的业务数据路由至所述基站。
  3. 根据权利要求1所述的终端化小区基于SDN控制的带宽共享方法，其特征在于，还包括：
    基于所述SDN控制器的能力信息和/或所述目标业务的数据特征，确定所述至少一个终端化小区的数量。
  4. 根据权利要求1至3中任一项所述的终端化小区基于SDN控制的带宽共享方法，其特征在于，所述触发请求包括：
    所述任一终端化小区的可用带宽信息、所述目标业务的带宽需求和所述任一终端化小区的剩余电量。
  5. 一种终端化小区基于SDN控制的带宽共享方法，其特征在于，包 括：
    任一终端化小区在处理回程链路上的目标业务时，根据所述任一终端化小区的状态信息确定是否需要由其他终端化小区提供共享带宽，其中，所述目标业务的带宽需求大于或等于第一预定阈值；
    在确定需要由其他终端化小区提供共享带宽时，通过基站向SDN控制器发送共享带宽的触发请求。
  6. 根据权利要求5所述的终端化小区基于SDN控制的带宽共享方法，其特征在于，根据所述任一终端化小区的状态信息确定是否需要由其他终端化小区提供共享带宽的步骤，具体包括：
    在所述任一终端化小区的可用带宽不能满足所述目标业务的带宽需求，和/或所述任一终端化小区的剩余电量低于第一预定电量值时，确定需要由其他终端化小区提供共享带宽。
  7. 根据权利要求5或6所述的终端化小区基于SDN控制的带宽共享方法，其特征在于，还包括：
    判断所述任一终端化小区的可用带宽是否大于或等于第二预定阈值，并判断所述任一终端化小区的剩余电量是否大于或等于第二预定电量值；
    在判定所述任一终端化小区的可用带宽大于或等于所述第二预定阈值，且所述任一终端化小区的剩余电量大于或等于第二预定电量值时，通过所述基站向所述SDN控制器发送所述任一终端化小区的信息，以供所述SDN控制器确定是否选择所述任一终端化小区向其他终端化小区提供共享带宽。
  8. 一种终端化小区基于SDN控制的带宽共享方法，其特征在于，包括：
    基站获取处理回程链路上的目标业务的任一终端化小区的状态信息，并根据所述任一终端化小区的状态信息和所述基站自身的状态信息，确定是否需要由其他终端化小区向所述任一终端化小区提供共享带宽，其中，所述目标业务的带宽需求大于或等于第一预定阈值；
    在确定需要由其他终端化小区向所述任一终端化小区提供共享带宽时，向SDN控制器发送共享带宽的触发请求。
  9. 根据权利要求8所述的终端化小区基于SDN控制的带宽共享方法，其特征在于，根据所述任一终端化小区的状态信息和所述基站自身的状态信息，确定是否需要由其他终端化小区向所述任一终端化小区提供共享带宽的步骤，具体包括：
    在所述任一终端化小区的可用带宽不能满足所述目标业务的带宽需求，且所述基站的可用带宽不足以分配给所述任一终端化小区时，或在所述基站向所述任一终端化小区提供带宽的代价高于预期时，确定需要由其他终端化小区向所述任一终端化小区提供共享带宽。
  10. 根据权利要求9所述的终端化小区基于SDN控制的带宽共享方法，其特征在于，还包括：
    根据所述基站的网络状态和所述目标业务的性能要求确定向所述任一终端化小区提供带宽的代价，其中，
    所述网络状态包括网络容量和网络负荷，所述目标业务的性能要求包括带宽要求、时延要求、服务质量要求。
  11. 根据权利要求8所述的终端化小区基于SDN控制的带宽共享方法，其特征在于，还包括：
    判断是否接收到所述任一终端化小区发送的共享带宽的触发请求；
    在判定接收到所述任一终端化小区发送的共享带宽的触发请求时，将所述共享带宽的触发请求转发至所述SDN控制器。
  12. 根据权利要求8至11中任一项所述的终端化小区基于SDN控制的带宽共享方法，其特征在于，还包括：
    接收所述SDN控制器向所述基站、所述任一终端化小区，以及为所述任一终端化小区提供共享带宽的至少一个终端化小区中的每个终端化小区分别配置的路由策略；
    将所述SDN控制器向所述任一终端化小区和所述每个终端化小区配置的路由策略分别转发至相应的终端化小区。
  13. 一种终端化小区基于SDN控制的带宽共享装置，适用于SDN控制器，其特征在于，包括：
    确定单元，设置为确定是否接收到共享带宽的触发请求，所述触发请 求表明任一终端化小区在处理回程链路上的目标业务时，需要由其他终端化小区提供共享带宽，且所述目标业务的带宽需求大于或等于第一预定阈值；
    选择单元，设置为在所述确定单元确定接收到所述触发请求时，选择出向所述任一终端化小区提供共享带宽的至少一个终端化小区；
    控制单元，设置为控制所述任一终端化小区和所述至少一个终端化小区共同处理所述目标业务。
  14. 根据权利要求13所述的终端化小区基于SDN控制的带宽共享装置，其特征在于，所述控制单元包括：
    配置单元，设置为向所述至少一个终端化小区中的每个终端化小区和所述任一终端化小区分别配置业务数据的路由策略；
    发送单元，设置为将所述配置单元向所述任一终端化小区和所述每个终端化小区分别配置的路由策略发送至为所述任一终端化小区和所述至少一个终端化小区提供回程链路的基站，由所述基站分别转发至相应的终端化小区，以使所述任一终端化小区和所述每个终端化小区根据分别分配的路由策略共同将所述目标业务的业务数据路由至所述基站。
  15. 根据权利要求13所述的终端化小区基于SDN控制的带宽共享装置，其特征在于，所述选择单元还设置为：
    基于所述SDN控制器的能力信息和/或所述目标业务的数据特征，确定所述至少一个终端化小区的数量。
  16. 根据权利要求13至15中任一项所述的终端化小区基于SDN控制的带宽共享装置，其特征在于，所述触发请求包括：
    所述任一终端化小区的可用带宽信息、所述目标业务的带宽需求和所述任一终端化小区的剩余电量。
  17. 一种终端化小区基于SDN控制的带宽共享装置，适用于任一终端化小区，其特征在于，包括：
    确定单元，设置为在任一终端化小区处理回程链路上的目标业务时，根据所述任一终端化小区的状态信息确定是否需要由其他终端化小区提供共享带宽，其中，所述目标业务的带宽需求大于或等于第一预定阈值；
    发送单元，设置为在所述确定单元确定需要由其他终端化小区提供共享带宽时，通过基站向SDN控制器发送共享带宽的触发请求。
  18. 根据权利要求17所述的终端化小区基于SDN控制的带宽共享装置，其特征在于，所述确定单元具体设置为：
    在所述任一终端化小区的可用带宽不能满足所述目标业务的带宽需求，和/或所述任一终端化小区的剩余电量低于第一预定电量值时，确定需要由其他终端化小区提供共享带宽。
  19. 根据权利要求17或18所述的终端化小区基于SDN控制的带宽共享装置，其特征在于，还包括：
    判断单元，设置为判断所述任一终端化小区的可用带宽是否大于或等于第二预定阈值，并判断所述任一终端化小区的剩余电量是否大于或等于第二预定电量值；
    所述发送单元还设置为，在所述判断单元判定所述任一终端化小区的可用带宽大于或等于所述第二预定阈值，且所述任一终端化小区的剩余电量大于或等于第二预定电量值时，通过所述基站向所述SDN控制器发送所述任一终端化小区的信息，以供所述SDN控制器确定是否选择所述任一终端化小区向其他终端化小区提供共享带宽。
  20. 一种终端化小区基于SDN控制的带宽共享装置，适用于基站，其特征在于，包括：
    获取单元，设置为获取处理回程链路上的目标业务的任一终端化小区的状态信息，其中，所述目标业务的带宽需求大于或等于第一预定阈值；
    确定单元，设置为根据所述任一终端化小区的状态信息和所述基站自身的状态信息，确定是否需要由其他终端化小区向所述任一终端化小区提供共享带宽；
    发送单元，设置为在所述确定单元确定需要由其他终端化小区向所述任一终端化小区提供共享带宽时，向SDN控制器发送共享带宽的触发请求。
  21. 根据权利要求20所述的终端化小区基于SDN控制的带宽共享装置，其特征在于，所述确定单元具体设置为：
    在所述任一终端化小区的可用带宽不能满足所述目标业务的带宽需求，且所述基站的可用带宽不足以分配给所述任一终端化小区时，或在所述基站向所述任一终端化小区提供带宽的代价高于预期时，确定需要由其他终端化小区向所述任一终端化小区提供共享带宽。
  22. 根据权利要求21所述的终端化小区基于SDN控制的带宽共享装置，其特征在于，所述确定单元具体还设置为：
    根据所述基站的网络状态和所述目标业务的性能要求确定向所述任一终端化小区提供带宽的代价，其中，
    所述网络状态包括网络容量和网络负荷；所述目标业务的性能要求包括带宽要求、时延要求、服务质量要求。
  23. 根据权利要求20所述的终端化小区基于SDN控制的带宽共享装置，其特征在于，还包括：判断单元，设置为判断是否接收到所述任一终端化小区发送的共享带宽的触发请求；
    所述发送单元还设置为，在所述判断单元判定接收到所述任一终端化小区发送的共享带宽的触发请求时，将所述共享带宽的触发请求转发至所述SDN控制器。
  24. 根据权利要求20至23中任一项所述的终端化小区基于SDN控制的带宽共享装置，其特征在于，还包括：
    接收单元，设置为接收所述SDN控制器向所述基站、所述任一终端化小区，以及为所述任一终端化小区提供共享带宽的至少一个终端化小区中的每个终端化小区分别配置的路由策略；
    所述发送单元还设置为，将所述SDN控制器向所述任一终端化小区和所述每个终端化小区配置的路由策略分别转发至相应的终端化小区。
PCT/CN2016/100549 2016-02-03 2016-09-28 终端化小区基于sdn控制的带宽共享方法及带宽共享装置 Ceased WO2017133261A1 (zh)

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