WO2017133262A1 - 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
WO2017133262A1
WO2017133262A1 PCT/CN2016/100550 CN2016100550W WO2017133262A1 WO 2017133262 A1 WO2017133262 A1 WO 2017133262A1 CN 2016100550 W CN2016100550 W CN 2016100550W WO 2017133262 A1 WO2017133262 A1 WO 2017133262A1
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Prior art keywords
terminalized
cell
bandwidth
cells
target
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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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    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

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 terminalized cell based on SDN (Software Defined Network) controlled bandwidth sharing scheme, so that the SDN controller can make the available bandwidth more affluent target.
  • SDN Software Defined Network
  • the bandwidth resource segmentation of the T-SC on the backhaul link is provided to the low-bandwidth service to ensure that the wireless backhaul sharing mechanism between the T-SCs can be applied, and the bandwidth resources on the backhaul link are flexibly configured.
  • 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
  • the shared bandwidth needs to be provided by the other terminalized cells, and the bandwidth requirement of the target service is less than or equal to a first predetermined threshold; when it is determined that the trigger request is received, To the stated Any terminalized cell provides a target terminalized cell with shared bandwidth; and the target terminalized cell is controlled to process the target service.
  • the SDN controller selects a target terminalized cell that provides a shared bandwidth to any of the foregoing terminalized cells when receiving the trigger request of the shared bandwidth, so as to control the selected target terminalized cell to process the target service, For low-bandwidth traffic on any T-SC backhaul link (ie, the target traffic described above, whose bandwidth requirement is less than or equal to the first predetermined threshold), if the available bandwidth of the T-SC is insufficient or the power is low, etc.
  • the SDN controller can provide a part of the bandwidth resources of the target T-SCs with rich available bandwidth on the backhaul link to the low-bandwidth service to ensure the use of the T-SC.
  • the wireless backhaul sharing mechanism can be applied to achieve the technical effect of flexibly configuring bandwidth resources on the backhaul link.
  • the step of controlling the target terminalized cell to process the target service includes: configuring a routing policy of service data to each of the terminalized cell and the target terminalized cell respectively; Transmitting a routing policy respectively configured to the any of the terminalized cells and the target terminalized cell to a base station providing a backhaul link for the any of the terminalized cells and the target terminalized cell, where the base station respectively Forwarding to the corresponding terminalized cell, so that any of the terminalized cells routes the service data of the target service to the target terminalized cell according to the allocated routing policy, and the target terminalized cell is allocated according to the target A routing policy routes the traffic data to the base station.
  • the SDN controller can flexibly integrate the global topology into any of the foregoing terminalized cells and the target terminalized cells.
  • the optimal route is configured to improve data transmission efficiency between any of the foregoing terminalized cells and the target terminalized cell, and between the target 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: performing, according to the capability information of the SDN controller, the number of the terminalized cells that need to provide the shared bandwidth and/or the data characteristics of the target service within a predetermined time period. And selecting the target terminalized cell.
  • 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 less 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 SDN controller sends the trigger request.
  • the base station sends a trigger request for the shared bandwidth to the SDN controller, so that the SDN controller can select to provide the target terminalized cell with the shared bandwidth to any of the above-mentioned terminalized cells, so as to control the selected target terminalized cell processing target.
  • the service ensures that the SDN controller can provide a part of the bandwidth resource of the target T-SC with a richer available bandwidth on the backhaul link to the low bandwidth service (ie, the target service), thereby ensuring the wireless between the T-SCs.
  • the 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 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 less than or equal to a predetermined threshold; the trigger request is sent to the SDN controller when it is determined that the shared bandwidth needs to be provided by the other terminalized cell to the any terminalized cell.
  • 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 cell provides a target terminalized cell with shared bandwidth to control the selected target terminalized cell to process the target service, thereby ensuring that the SDN controller can segment the bandwidth resource of the target T-SC with rich available bandwidth on the backhaul link.
  • target services Part of the provision for low-bandwidth services (ie, target services) ensures that between T-SCs
  • the wireless backhaul sharing mechanism can be applied to realize the technical effect of flexibly configuring bandwidth resources on the backhaul link.
  • the method includes: when 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 at the base station When the cost of providing bandwidth to any of the terminalized cells 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 attribute information of the target service, where the network state includes a load connection quantity and a signaling load, where The attribute information of the target service includes a data size of the target service.
  • the “cost of providing bandwidth” described here mainly considers the characteristics of small data packets, massive connections, and low power consumption of the Internet of Things. If each terminalized cell maintains a connection, it will give the network. The large signaling load brought by the side cannot meet the requirements of low power consumption, 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 target terminalized cell that provides shared bandwidth to the base station, the any terminalized cell, and the any terminalized cell. a routing policy configured separately: forwarding the routing policy configured by the SDN controller to the any terminalized cell and the target terminalized cell to a corresponding terminalized cell.
  • the base station can communicate with the network side server according to the optimal route allocated by the SDN controller (the SDN controller can integrate the global topology to configure the optimal route for the base station), thereby improving the routing efficiency between the base station and the network side server; Forwarding, by the SDN controller, the routing policy to any of the foregoing terminalized cells and the target terminalized cell to the corresponding terminalized cell, so that any of the terminalized cells can be optimally configured according to the SDN controller (the SDN controller can The integrated global topology flexibly configures an optimal route for any of the above-mentioned terminalized cells to communicate with the target terminalized cell, and enables the target terminalized cell to be optimally configured according to the SDN controller (the SDN controller can be integrated) The global topology flexibly configures an optimal route for the target terminalized cell to communicate with the base station, thereby improving data transmission efficiency between the terminalized cells and between the terminalized cells 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 less than or equal to a first predetermined threshold; The determining unit determines that when the trigger request is received, selecting a target terminalized cell that provides a shared bandwidth to the any terminalized cell; and the control unit is configured to control the target terminalized cell to process the target service.
  • the SDN controller selects a target terminalized cell that provides a shared bandwidth to any of the foregoing terminalized cells when receiving the trigger request of the shared bandwidth, so as to control the selected target terminalized cell to process the target service, For low-bandwidth traffic on any T-SC backhaul link (ie, the target traffic described above, whose bandwidth requirement is less than or equal to the first predetermined threshold), if the available bandwidth of the T-SC is insufficient or the power is low, etc.
  • the SDN controller can provide a part of the bandwidth resources of the target T-SCs with rich available bandwidth on the backhaul link to the low-bandwidth service to ensure the use of the T-SC.
  • the wireless backhaul sharing mechanism can be applied to achieve the technical effect of flexibly configuring bandwidth resources on the backhaul link.
  • the control unit includes: a configuration unit, configured to configure a routing policy for separately configuring the service data to the any terminalized cell and the target terminalized cell a sending unit, configured to send a routing policy configured by the configuration unit to the any of the terminalized cells and the target terminalized cell to provide the terminalized cell and the target terminalized cell
  • the base station of the backhaul link is forwarded to the corresponding terminalized cell by the base station, so that the any terminalized cell routes the service data of the target service to the target terminalized cell according to the allocated routing policy.
  • the SDN controller can flexibly integrate the global topology into any of the foregoing terminalized cells and the target terminalized cells.
  • the optimal route is configured to improve data transmission efficiency between any of the foregoing terminalized cells and the target terminalized cell, and between the target 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: based on capability information of the SDN controller and/or a number of terminalized cells that need to provide shared bandwidth within a predetermined time period, and/or The data characteristics of the target service, and the target terminalized cell is selected.
  • 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 any one of the terminalized cells. Remaining power.
  • 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 less than or equal to a first predetermined threshold; and the sending unit is configured to be in the target service.
  • the determining unit determines that the shared bandwidth needs to be provided by other terminalized cells, the trigger request is sent by the base station 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 to provide the target terminalized cell with the shared bandwidth to any of the above-mentioned terminalized cells, so as to control the selected target terminalized cell processing target.
  • the service ensures that the SDN controller can provide a part of the bandwidth resource of the target T-SC with a richer available bandwidth on the backhaul link to the low bandwidth service (ie, the target service), thereby ensuring the wireless between the T-SCs.
  • the 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 apparatus based on SDN control of a terminalized cell which is applicable to a base station, and includes: an acquiring unit, configured to acquire any terminalized cell that processes a target service on the backhaul link.
  • the determining unit is configured to determine, according to the state information of the any terminalized cell and the state information of the base station, whether the shared bandwidth needs to be provided by the other terminalized cell to the any terminalized cell, where The bandwidth requirement of the target service is less than or equal to a first predetermined threshold; and the sending unit is configured to: when the determining unit determines that the shared bandwidth needs to be provided by the other terminalized cell to the any terminalized cell, to the SDN
  • the controller sends the trigger request.
  • 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 cell provides a target terminalized cell with shared bandwidth to control the selected target terminalized cell to process the target service, thereby ensuring that the SDN controller can segment the bandwidth resource of the target T-SC with rich available bandwidth on the backhaul link.
  • a part of the service provided to the low-bandwidth service (that is, the target service) ensures 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, according to a network state of the base station and attribute information of the target service, a cost of providing bandwidth to the any terminalized cell, where the network status includes The number of load connections and the signaling load, and the attribute information of the target service includes a data size of the target service.
  • the “cost of providing bandwidth” described here mainly considers the characteristics of small data packets, massive connections, and low power consumption of the Internet of Things. If each terminalized cell maintains a connection, it will give the network. The large signaling load brought by the side cannot meet the requirements of low power consumption, 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 for the shared bandwidth sent by the any terminalized cell is received; the sending unit is further configured to: When the unit determines to receive the trigger request of the shared bandwidth sent by the any terminalized cell, the unit forwards the trigger request of the shared bandwidth 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, 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 by the target terminalized cell; the sending unit is further configured to forward the routing policy configured by the SDN controller to the any terminalized cell and the target terminalized cell to the corresponding terminal respectively Community.
  • 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.
  • the side server communicates to improve the routing efficiency between the base station and the network side server; and the SDN controller forwards the routing policy to any of the foregoing terminalized cells and the target terminalized cell to the corresponding terminalized cell, so that any of the foregoing
  • the terminalized cell can communicate with the target terminalized cell according to the optimal route configured by the SDN controller (the SDN controller can flexibly configure the optimal route for any of the terminalized cells in combination with the global topology), and simultaneously make the target terminal
  • the cell can communicate with the base station according to the optimal route configured by the SDN controller (the SDN controller can flexibly configure the optimal route for the target terminalized cell in a comprehensive global topology), and improves the terminalized cell and the terminalization. Data transmission efficiency between a cell and a 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 is further provided, including: The terminalized cell described in the fifth aspect is based on an SDN controlled bandwidth sharing device.
  • a base station comprising: the SDN control based bandwidth sharing device of the terminalized cell according to the sixth aspect.
  • the SDN controller can provide a part of the bandwidth resource of the target T-SC with rich available bandwidth on the backhaul link to the low bandwidth service to ensure wireless backhaul sharing between the T-SCs.
  • the mechanism can be applied to realize the technical effect of flexibly configuring bandwidth resources on the backhaul link.
  • 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 trigger bandwidth sharing according to an embodiment of the present invention.
  • FIG. 13 shows a flow chart of 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 less than or equal to the first predetermined threshold;
  • Step 204 When determining that the trigger request is received, selecting a target terminalized cell that provides shared bandwidth to any of the terminalized cells;
  • Step 206 Control the target terminalized cell to process the target service.
  • the SDN controller selects a target terminalized cell that provides a shared bandwidth to any of the foregoing terminalized cells when receiving the trigger request of the shared bandwidth, so as to control the selected target terminalized cell to process the target service, For low-bandwidth traffic on any T-SC backhaul link (ie, the target traffic described above, whose bandwidth requirement is less than or equal to the first predetermined threshold), if the available bandwidth of the T-SC is insufficient or the power is low, etc.
  • shared bandwidth needs to be provided by other T-SCs, the SDN controller can return the target T-SC with richer available bandwidth on the backhaul. Part of the bandwidth resource segmentation on the link is provided to the low-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 controlling the target terminalized cell to process the target service includes: configuring a routing policy of service data to each of the terminalized cell and the target terminalized cell respectively; Transmitting a routing policy respectively configured to the any of the terminalized cells and the target terminalized cell to a base station providing a backhaul link for the any of the terminalized cells and the target terminalized cell, where the base station respectively Forwarding to the corresponding terminalized cell, so that any of the terminalized cells routes the service data of the target service to the target terminalized cell according to the allocated routing policy, and the target terminalized cell is allocated according to the target A routing policy routes the traffic data to the base station.
  • the SDN controller can flexibly integrate the global topology into any of the foregoing terminalized cells and the target terminalized cells.
  • the optimal route is configured to improve data transmission efficiency between any of the foregoing terminalized cells and the target terminalized cell, and between the target 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 capability information and/or the number of terminalized cells that need to provide shared bandwidth and/or the data characteristics of the target service within a predetermined time period are selected, and the target terminalized cell is selected.
  • 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 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.
  • 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 less than or equal to a first predetermined threshold; and the selecting unit 304 is configured to: when the determining unit 302 determines that the trigger request is received, select a target that provides shared bandwidth to the any terminalized cell. a terminalized cell; the control unit 306 is configured to control the target terminalized cell to process the target service.
  • the SDN controller selects a target terminalized cell that provides a shared bandwidth to any of the foregoing terminalized cells when receiving the trigger request of the shared bandwidth, so as to control the selected target terminalized cell to process the target service, For low-bandwidth traffic on any T-SC backhaul link (ie, the target traffic described above, whose bandwidth requirement is less than or equal to the first predetermined threshold), if the available bandwidth of the T-SC is insufficient or the power is low, etc.
  • the SDN controller can provide a part of the bandwidth resources of the target T-SCs with rich available bandwidth on the backhaul link to the low-bandwidth service to ensure the use of the T-SC.
  • the wireless backhaul sharing mechanism can be applied to achieve the technical effect of flexibly configuring bandwidth resources on the backhaul link.
  • the control unit 306 includes: a configuration unit 3062, configured to separately configure a routing policy of the service data to the any terminalized cell and the target terminalized cell; the sending unit 3064, setting In order to transfer the configuration unit 3062 to the above a routing policy respectively configured by a terminalized cell and the target terminalized cell is sent to a base station that provides a backhaul link for the any of the terminalized cells and the target terminalized cell, and the base station respectively forwards the base station to the corresponding terminal
  • the cell is configured to enable the any terminalized cell to route the service data of the target service to the target terminalized cell according to the allocated routing policy, and the target terminalized cell according to the allocated routing policy Traffic is routed to the base station.
  • the SDN controller can flexibly integrate the global topology into any of the foregoing terminalized cells and the target terminalized cells.
  • the optimal route is configured to improve data transmission efficiency between any of the foregoing terminalized cells and the target terminalized cell, and between the target 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: based on the capability information of the SDN controller and/or the number and/or location of the terminalized cells that need to provide the shared bandwidth within a predetermined time period Determining the data characteristics of the target service, and selecting the target terminalized cell.
  • 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 any one of the terminalized cells. Remaining power.
  • 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 less 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 trigger request is sent by the base station 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 to provide the target terminalized cell with the shared bandwidth to any of the above-mentioned terminalized cells, so as to control the selected target terminalized cell processing target.
  • the service ensures that the SDN controller can provide a part of the bandwidth resource of the target T-SC with a richer available bandwidth on the backhaul link to the low bandwidth service (ie, the target service), thereby ensuring the wireless between the T-SCs.
  • the 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 terminalized cell is any Whether the remaining power is greater than or equal to the second predetermined power value; determining whether 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 And transmitting, by the base station, information about any of the terminalized cells to the SDN controller, where the SDN controller determines whether to select the any terminalized cell to provide sharing to other terminalized cells. bandwidth.
  • 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.
  • 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 according to the second embodiment of the present invention is applicable to any terminalized cell, and includes: a determining unit 602 and a transmitting unit 604.
  • the determining unit 602 is configured to determine, according to the status information of any of the terminalized cells, whether to provide shared bandwidth by other terminalized cells, where the terminalized cell processes the target service on the backhaul link, where The bandwidth requirement of the target service is less than or equal to the first predetermined threshold; the sending unit 604 is configured to send the trigger request to the SDN controller by using the base station 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 to provide the target terminalized cell with the shared bandwidth to any of the above-mentioned terminalized cells, so as to control the selected target terminalized cell processing target.
  • the service ensures that the SDN controller can provide a part of the bandwidth resource of the target T-SC with a richer available bandwidth on the backhaul link to the low bandwidth service (ie, the target service), thereby ensuring the wireless between the T-SCs.
  • the 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 information of the any terminalized cell to the SDN controller, so that the SDN controller determines whether to select The any 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.
  • 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 less than or equal to a first predetermined threshold;
  • Step 804 Send the trigger request to the SDN controller when determining that the shared bandwidth needs to be provided by the other terminalized cell to the any terminalized cell.
  • 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 cell provides a target terminalized cell with shared bandwidth to control the selected target terminalized cell to process the target service, thereby ensuring that the SDN controller can segment the bandwidth resource of the target T-SC with rich available bandwidth on the backhaul link.
  • a part of the service provided to the low-bandwidth service (that is, the target service) ensures 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 method includes: when 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 at the base station When the cost of providing bandwidth to any of the terminalized cells 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 attribute information of the target service, where the network state includes a load connection quantity and a signaling load, where The attribute information of the target service includes a data size of the target service.
  • the “cost of providing bandwidth” described here mainly considers the characteristics of small data packets, massive connections, and low power consumption of the Internet of Things. If each terminalized cell maintains a connection, it will give the network. The large signaling load brought by the side cannot meet the requirements of low power consumption, 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 target terminalized cell that provides shared bandwidth to the base station, the any terminalized cell, and the any terminalized cell. a routing policy configured separately: forwarding the routing policy configured by the SDN controller to the any terminalized cell and the target terminalized cell to a corresponding terminalized cell.
  • 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.
  • the side server communicates to improve the routing efficiency between the base station and the network side server; and the SDN controller forwards the routing policy to any of the foregoing terminalized cells and the target terminalized cell to the corresponding terminalized cell, so that any of the foregoing
  • the terminalized cell can communicate with the target terminalized cell according to the optimal route configured by the SDN controller (the SDN controller can flexibly configure the optimal route for any of the terminalized cells in combination with the global topology), and simultaneously make the target terminal
  • the cell can communicate with the base station according to the optimal route configured by the SDN controller (the SDN controller can flexibly configure the optimal route for the target terminalized cell in a comprehensive global topology), and improves the terminalized cell and the terminalization. Data transmission efficiency between a cell and a 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, and the determining unit 904 is configured to set the state information according to the any terminalized cell and the base station itself.
  • Status information determining whether it is required to provide shared bandwidth to the any terminalized cell by the other terminalized cell, where the bandwidth requirement of the target service is less than or equal to a first predetermined threshold; the sending unit 906 is configured to be in the determining
  • the unit 904 determines that the trigger request needs to be sent to the SDN controller when the other terminalized cell needs to provide the shared bandwidth to the any terminalized cell.
  • the base station determines whether it needs to be used by other terminalized cells to any of the above
  • the SDN controller sends a trigger request for the shared bandwidth to the SDN controller, so that the SDN controller can select to provide the target terminalized cell with the shared bandwidth to any of the foregoing terminalized cells, so as to control the selected target terminalized cell.
  • the target service is processed, thereby ensuring that the SDN controller can segment the bandwidth resources of the target T-SC with rich available bandwidth on the backhaul link to provide a low-bandwidth service (that is, the target service), thereby ensuring the T-SC.
  • the wireless backhaul sharing mechanism can be applied, and the technical effect of flexibly configuring 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 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 cells to the any terminalized cell.
  • the determining unit 904 is further configured to: determine, according to a network state of the base station and attribute information of the target service, a cost of providing bandwidth to the any terminalized cell, where the network state The load connection quantity and the signaling load are included, and the attribute information of the target service includes a data size of the target service.
  • the “cost of providing bandwidth” described here mainly considers the characteristics of small data packets, massive connections, and low power consumption of the Internet of Things. If each terminalized cell maintains a connection, it will give the network. The large signaling load brought by the side cannot meet the requirements of low power consumption, 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 the SDN controller to the base station, any of the terminalized cells, and The terminalized cell provides a routing policy configured separately for the target terminalized cell that shares the bandwidth; the sending unit 906 is further configured to configure the route of the SDN controller to the any terminalized cell and the target terminalized cell. The 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.
  • the side server communicates to improve the routing efficiency between the base station and the network side server; and the SDN controller forwards the routing policy to any of the foregoing terminalized cells and the target terminalized cell to the corresponding terminalized cell, so that any of the foregoing
  • the terminalized cell can communicate with the target terminalized cell according to the optimal route configured by the SDN controller (the SDN controller can flexibly configure the optimal route for any of the terminalized cells in combination with the global topology), and simultaneously make the target terminal
  • the cell can communicate with the base station according to the optimal route configured by the SDN controller (the SDN controller can flexibly configure the optimal route for the target terminalized cell in a comprehensive global topology), and improves the terminalized cell and the terminalization. Data transmission efficiency between a cell and a base station.
  • 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. Split the backhaul resources of one T-SC into multiple T-SCs for flexible bandwidth configuration.
  • a T-SC backhaul resource can be split into multiple T-SCs of low-bandwidth services (such as the Internet of Things smart meter reading service), that is, bandwidth sharing of a T-SC.
  • Low-bandwidth services such as the Internet of Things smart meter reading service
  • Outgoing low-bandwidth service data plane routing for multiple T-SCs As shown in FIG. 11, the system with three T-SCs is taken as an example.
  • the data stream of the terminal 1102 reaches the base station 1110 through the T-SC 1104, and then reaches the network side server.
  • the data stream of the terminal 1114 reaches the base station 1110 through the T-SC 1106, and then reaches the network side server 1112; the data stream of the terminal 1116 reaches the base station 1110 through the T-SC 1108, and then reaches the network side server 1112.
  • the terminal 1102 The data stream is transmitted to the T-SC 1106 through the T-SC 1104, then reaches the base station 1110 through the T-SC 1106, and then reaches the network side server 1112; the data stream of the terminal 1114 reaches the base station 1110 through the T-SC 1106, and then reaches the network side.
  • the server 1112; the data stream of the terminal 1116 is transmitted to the T-SC 1106 through the T-SC 1108, then reaches the base station 1110 through the T-SC 1106, and then reaches the network side server 1112.
  • the present invention contemplates that in a wireless environment, if there is a certain T-SC bandwidth surplus, power surplus, and some T-SC bandwidth is insufficient to support low bandwidth services and/or insufficient power to support low bandwidth services, then
  • the bandwidth of a certain T-SC can be divided into multiple low-bandwidth service data plane routes for multiple T-SCs to meet the needs of low-bandwidth services. This may be a bandwidth sharing process triggered by multiple T-SCs, or a bandwidth sharing 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, each T-SC (T-SC 1, T-SC 2, ..., T-SC n shown in FIG. 12) uses only its own bandwidth for service data stream transmission.
  • Step 1204 When any T-SC determines that the trigger bandwidth sharing condition is met, request the SDN controller to configure the shared bandwidth.
  • the condition for triggering bandwidth sharing is that each T-SC judges based on its own state information (including its service bandwidth, available bandwidth, energy consumption state, etc.). For example, when T-SC 1 processes low-bandwidth services (that is, the service bandwidth is below a certain threshold), and its available bandwidth is insufficient to support low-bandwidth services, or when T-SC 1 is insufficient, bandwidth sharing can be triggered.
  • the nearest T-SC backhaul transmits its business data.
  • the request signaling for triggering the bandwidth analysis is sent to the eNB by each T-SC, 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 service bandwidth, remaining power, available bandwidth, and the like of each T-SC.
  • the SDN controller calculates a T-SC to provide bandwidth sharing from a global optimal perspective, and selects T-SC 1 as shown in FIG. Bandwidth sharing is provided for other n-1 T-SCs (ie, T-SC 2, T-SC 3, ..., T-SC n).
  • 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), the data characteristics of the low bandwidth service itself, and the T-initiating bandwidth sharing within a period of time. The number of SCs, etc.
  • Step 1208 the SDN controller configures a routing policy of the service data, and delivers the routing policy to the eNB and the n T-SCs (T-SC 1, T-SC 2, ..., T-SC shown in Figure 12). 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 1210 The corresponding T-SC and the eNB sequentially execute the routing table, and the data streams of different low bandwidth services (and the service data stream of the T-SC 1 itself) are transmitted through the bandwidth of the T-SC 1.
  • the bandwidth sharing process triggered by the eNB includes:
  • Step 1302 In the initial state, each T-SC (T-SC 1, T-SC 2, ..., T-SC n of FIG. 13) uses only its own bandwidth for service data stream transmission.
  • Step 1304 When the eNB determines that the trigger bandwidth sharing condition is met, the SDN controller sends a request to configure the shared bandwidth.
  • the condition for triggering bandwidth sharing is that the eNB determines based on its own state information (including its Uu link bandwidth allocation, bandwidth provision cost, etc.). For example, when there are several T-SCs whose available bandwidth cannot meet the requirements of low-bandwidth services, and the available bandwidth of the eNB is insufficient to allocate to these T-SCs, or when the cost of providing bandwidth by the eNB is too high, bandwidth sharing can be triggered. Providing the bandwidth of all of these T-SC data transmissions using a nearby T-SC backhaul resource or reducing the integrated bandwidth provides a cost.
  • the request signaling for triggering bandwidth sharing is directly sent by the eNB to the SDN controller.
  • the request signaling carries some necessary information for bandwidth sharing, including service bandwidth, remaining power, available bandwidth, and the like of each T-SC.
  • Step 1306 after receiving the bandwidth sharing request sent by the eNB, the SDN controller calculates a T-SC to provide bandwidth sharing for each T-SC from a global optimal angle, and selects T-SC 1 as other n as shown in FIG. - 1 T-SC (ie T-SC 2, T-SC 3, ..., T-SC n) provides bandwidth enjoy.
  • 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), the data characteristics of the low bandwidth service itself, and the T-initiating bandwidth sharing within a period of time. The number of SCs, etc.
  • Step 1308, the SDN controller configures a routing policy of the service data, and delivers the routing policy to the eNB and the n T-SCs (T-SC 1, T-SC 2, ..., T-SC shown in Figure 13). 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 1310 The corresponding T-SC and the eNB sequentially execute the routing table, and the data streams of different low bandwidth services (and the service data stream of the T-SC 1 itself) are transmitted through the bandwidth of the T-SC 1.
  • the technical solution of the foregoing embodiment of the present invention can be used in the mobile environment, when the T-SC uses the radio bearer as the backhaul, the T-SC backhaul resource is split into multiple T-SCs of the low bandwidth service, which is flexible. Bandwidth configuration.
  • 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.
  • Figure 3 The various units described (eg, the determining unit 302, the selecting unit 304, the control unit 306, etc.) are program code stored in the memory 414 and executed by the processor 410, Thereby the functions of the various units are implemented 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 less than or equal to a first predetermined threshold; when determining that the trigger request is received, the processor 410 selects a target terminalized cell that provides a shared bandwidth to the any terminalized cell; The processor 410 controls the target terminalized cell to process the target service.
  • the processor 410 separately configures a routing policy of the service data to the any of the terminalized cells and the target terminalized cell; and the terminalized to the any terminalized cell and the target
  • the routing policy respectively configured by the cell is sent to the base station that provides the backhaul link for the any of the terminalized cells and the target terminalized cell, and is forwarded by the base station to the corresponding terminalized cell, respectively, so that any one of the terminals is
  • the service cell routes the service data of the target service to the target terminalized cell according to the allocated routing policy, and the target terminalized cell routes the service data to the base station according to the allocated routing policy.
  • the processor 410 selects based on capability information of the SDN controller and/or a number of terminalized cells that need to provide shared bandwidth within a predetermined time period and/or data characteristics of the target service.
  • the target terminalized cell selects based on capability information of the SDN controller and/or a number of terminalized cells that need to provide shared bandwidth within a predetermined time period 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, For example, 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 respective units e.g., the determining unit 602, the transmitting unit 604, the determining unit 606, etc.
  • FIG. 6 are program codes stored in the memory 714, and are 710 is executed to implement the functions of the various units 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 processing the target service on the backhaul link, the processor 710 determines, 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 requirement of the target service is less 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 the trigger request 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; determining 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 processor 710 sends, by the base station, information about any of the terminalized cells to the SDN controller, where the SDN controller determines whether to select any of the terminals.
  • the cell provides 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 communication bus 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. Yes Whether it is necessary for the other terminalized cells to provide the shared bandwidth to the any terminalized cell, where the bandwidth requirement of the target service is less 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 the trigger request 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 status of the base station and attribute information of the target service, where the network status includes a load connection.
  • the quantity and signaling load, the attribute information of the target service includes a data size of the target service.
  • 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 the target terminalized cell that the SDN controller provides to the base station, the any terminalized cell, and the shared bandwidth for the any terminalized cell.
  • the routing policy is forwarded to the corresponding terminalized cell by the routing policy configured by the SDN controller to the any terminalized cell and the target terminalized cell.
  • 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 information between the base station and the SDN controller can be omitted. make.
  • the present invention proposes a new bandwidth sharing scheme based on SDN control for a terminalized cell, so that the SDN controller can use the target T-SC with rich available bandwidth in the backhaul chain.
  • a part of the bandwidth resource on the road is provided for the low-bandwidth service, which ensures 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.

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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，且所述目标业务的带宽需求小于或等于第一预定阈值；在确定接收到所述触发请求时，选择向任一终端化小区提供共享带宽的目标终端化小区；控制目标终端化小区处理所述目标业务。本发明使得SDN控制器可以将可用带宽较富裕的目标T-SC在回程链路上的带宽资源切分一部分提供给该低带宽业务使用，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201610075748.7、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控制器可以将可用带宽较富裕的目标T-SC在回程链路上的带宽资源切分一部分提供给该低带宽业务使用，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小于或等于第一预定阈值；在确定接收到所述触发请求时，选择向所述 任一终端化小区提供共享带宽的目标终端化小区；控制所述目标终端化小区处理所述目标业务。
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目标终端化小区，以控制选择出的目标终端化小区处理目标业务，使得对于任一T-SC回程链路上的低带宽业务(即上述的目标业务，其带宽需求小于或等于第一预定阈值)，若该T-SC的可用带宽不足或电量较低等问题导致需要由其他T-SC提供共享带宽时，SDN控制器可以将可用带宽较富裕的目标T-SC在回程链路上的带宽资源切分一部分提供给该低带宽业务使用，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，控制所述目标终端化小区处理所述目标业务的步骤，具体包括：向所述任一终端化小区和所述目标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目标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目标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根据分配的路由策略将所述目标业务的业务数据路由至所述目标终端化小区，并由所述目标终端化小区根据分配的路由策略将所述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目标终端化小区配置业务数据的路由策略，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目标终端化小区配置最优的路由，以提高上述任一终端化小区与上述目标终端化小区之间，以及上述目标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/或预定时间段内需要提供共享带宽的终端化小区的数量和/或所述目标业务的数据特征，选择所述目标终端化小区。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小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，通过基站向所述SDN控制器发送所述触发请求。
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低带宽业务(即上述目标业务，其带宽需求小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目标终端化小区，以控制选择出的目标终端化小区处理目标业务，进而确保SDN控制器可以将可用带宽较富裕的目标T-SC在回程链路上的带宽资源切分一部分提供给低带宽业务(即目标业务)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小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，向所述SDN控制器发送所述触发请求。
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目标终端化小区，以控制选择出的目标终端化小区处理目标业务，进而确保SDN控制器可以将可用带宽较富裕的目标T-SC在回程链路上的带宽资源切分一部分提供给低带宽业务(即目标业务)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属性信息确定向所述任一终端化小区提供带宽的代价，其中，所述网络状态包括负载连接数量和信令负荷，所述目标业务的属性信息包括所述目标业务的数据大小。
需要注意的是：此处所述的“提供带宽的代价”主要考虑了物联网业务小数据包、海量连接、低功耗的特征，若每个终端化小区都维持一个连接，则会给网络侧带来的巨大信令负荷且无法满足低功耗的需求，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目标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目标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目标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配置最优的路由)来和目标终端化小区进行通讯，同时使得上述目标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目标终端化小区配置最优的路由)与基站进行通讯，提高了终端化小区之间，以及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小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，选择向所述任一终端化小区提供共享带宽的目标终端化小区；控制单元，设置为控制所述目标终端化小区处理所述目标业务。
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目标终端化小区，以控制选择出的目标终端化小区处理目标业务，使得对于任一T-SC回程链路上的低带宽业务(即上述的目标业务，其带宽需求小于或等于第一预定阈值)，若该T-SC的可用带宽不足或电量较低等问题导致需要由其他T-SC提供共享带宽时，SDN控制器可以将可用带宽较富裕的目标T-SC在回程链路上的带宽资源切分一部分提供给该低带宽业务使用，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，设置为向所述任一终端化小区和所述目标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目标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目标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根据分配的路由策略将所述目标业务的业务数据路由至所述目标终端化小区，并由所述目标终端化小区根据分配的路由策略将所述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目标终端化小区配置业务数据的路由策略，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目标终端化小区配置最优的路由，以提高上述任一终端化小区与上述目标终端化小区之间，以及上述目标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/或预定时间段内需要提供共享带宽的终端化小区的数量和/或所述目标业务的数据特征，选择所述目标终端化小区。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小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，通过基站向所述SDN控制器发送所述触发请求。
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低带宽业务(即上述目标业务，其带宽需求小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目标终端化小区，以控制选择出的目标终端化小区处理目标业务，进而确保SDN控制器可以将可用带宽较富裕的目标T-SC在回程链路上的带宽资源切分一部分提供给低带宽业务(即目标业务)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；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，其中，所述目标业务的带宽需求小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向所述任一终端化小区提供共享带宽时，向所述SDN控制器发送所述触发请求。
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目标终端化小区，以控制选择出的目标终端化小区处理目标业务，进而确保SDN控制器可以将可用带宽较富裕的目标T-SC在回程链路上的带宽资源切分一部分提供给低带宽业务(即目标业务)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属性信息确定向所述任一终端化小区提供带宽的代价，其中，所述网络状态包括负载连接数量和信令负荷，所述目标业务的属性信息包括所述目标业务的数据大小。
需要注意的是：此处所述的“提供带宽的代价”主要考虑了物联网业务小数据包、海量连接、低功耗的特征，若每个终端化小区都维持一个连接，则会给网络侧带来的巨大信令负荷且无法满足低功耗的需求，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目标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目标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目标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配置最优的路由)来和目标终端化小区进行通讯，同时使得上述目标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目标终端化小区配置最优的路由)与基站进行通讯，提高了终端化小区之间，以及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控制器可以将可用带宽较富裕的目标T-SC在回程链路上的带宽资源切分一部分提供给该低带宽业务使用，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分享的场景示意图；
图12示出了根据本发明的实施例的T-SC触发带宽分享的流程示意图；
图13示出了根据本发明的实施例的eNB触发带宽分享的流程示意 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小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，选择向所述任一终端化小区提供共享带宽的目标终端化小区；
步骤206，控制所述目标终端化小区处理所述目标业务。
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目标终端化小区，以控制选择出的目标终端化小区处理目标业务，使得对于任一T-SC回程链路上的低带宽业务(即上述的目标业务，其带宽需求小于或等于第一预定阈值)，若该T-SC的可用带宽不足或电量较低等问题导致需要由其他T-SC提供共享带宽时，SDN控制器可以将可用带宽较富裕的目标T-SC在回程 链路上的带宽资源切分一部分提供给该低带宽业务使用，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，控制所述目标终端化小区处理所述目标业务的步骤，具体包括：向所述任一终端化小区和所述目标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目标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目标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根据分配的路由策略将所述目标业务的业务数据路由至所述目标终端化小区，并由所述目标终端化小区根据分配的路由策略将所述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目标终端化小区配置业务数据的路由策略，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目标终端化小区配置最优的路由，以提高上述任一终端化小区与上述目标终端化小区之间，以及上述目标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/或预定时间段内需要提供共享带宽的终端化小区的数量和/或所述目标业务的数据特征，选择所述目标终端化小区。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小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，选择向所述任一终端化小区提供共享带宽的目标终端化小区；控制单元306，设置为控制所述目标终端化小区处理所述目标业务。
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目标终端化小区，以控制选择出的目标终端化小区处理目标业务，使得对于任一T-SC回程链路上的低带宽业务(即上述的目标业务，其带宽需求小于或等于第一预定阈值)，若该T-SC的可用带宽不足或电量较低等问题导致需要由其他T-SC提供共享带宽时，SDN控制器可以将可用带宽较富裕的目标T-SC在回程链路上的带宽资源切分一部分提供给该低带宽业务使用，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，设置为向所述任一终端化小区和所述目标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目标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目标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根据分配的路由策略将所述目标业务的业务数据路由至所述目标终端化小区，并由所述目标终端化小区根据分配的路由策略将所述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目标终端化小区配置业务数据的路由策略，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目标终端化小区配置最优的路由，以提高上述任一终端化小区与上述目标终端化小区之间，以及上述目标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/或预定时间段内需要提供共享带宽的终端化小区的数量和/或所述目标业务的数据特征，选择所述目标终端化小区。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小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，通过基站向所述SDN控制器发送所述触发请求。
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低带宽业务(即上述目标业务，其带宽需求小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目标终端化小区，以控制选择出的目标终端化小区处理目标业务，进而确保SDN控制器可以将可用带宽较富裕的目标T-SC在回程链路上的带宽资源切分一部分提供给低带宽业务(即目标业务)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和发送单元604。
其中，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小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，通过基站向所述SDN控制器发送所述触发请求。
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低带宽业务(即上述目标业务，其带宽需求小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目标终端化小区，以控制选择出的目标终端化小区处理目标业务，进而确保SDN控制器可以将可用带宽较富裕的目标T-SC在回程链路上的带宽资源切分一部分提供给低带宽业务(即目标业务)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小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，向所述SDN控制器发送所述触发请求。
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目标终端化小区，以控制选择出的目标终端化小区处理目标业务，进而确保SDN控制器可以将可用带宽较富裕的目标T-SC在回程链路上的带宽资源切分一部分提供给低带宽业务(即目标业务)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属性信息确定向所述任一终端化小区提供带宽的代价，其中，所述网络状态包括负载连接数量和信令负荷，所述目标业务的属性信息包括所述目标业务的数据大小。
需要注意的是：此处所述的“提供带宽的代价”主要考虑了物联网业务小数据包、海量连接、低功耗的特征，若每个终端化小区都维持一个连接，则会给网络侧带来的巨大信令负荷且无法满足低功耗的需求，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目标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目标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目标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配置最优的路由)来和目标终端化小区进行通讯，同时使得上述目标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目标终端化小区配置最优的路由)与基站进行通讯，提高了终端化小区之间，以及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；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，其中，所述目标业务的带宽需求小于或等于第一预定阈值；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，向所述SDN控制器发送所述触发请求。
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目标终端化小区，以控制选择出的目标终端化小区处理目标业务，进而确保SDN控制器可以将可用带宽较富裕的目标T-SC在回程链路上的带宽资源切分一部分提供给低带宽业务(即目标业务)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属性信息确定向所述任一终端化小区提供带宽的代价，其中，所述网络状态包括负载连接数量和信令负荷，所述目标业务的属性信息包括所述目标业务的数据大小。
需要注意的是：此处所述的“提供带宽的代价”主要考虑了物联网业务小数据包、海量连接、低功耗的特征，若每个终端化小区都维持一个连接，则会给网络侧带来的巨大信令负荷且无法满足低功耗的需求，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目标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目标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目标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配置最优的路由)来和目标终端化小区进行通讯，同时使得上述目标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目标终端化小区配置最优的路由)与基站进行通讯，提高了终端化小区之间，以及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一个T-SC的回程资源切分给多个T-SC使用，从而实现灵活的带宽配置。
具体地，在移动环境中，可以将把一个T-SC的回程资源切分给多个低带宽业务的T-SC使用(如物联网智能抄表业务)，即将某个T-SC的带宽共享出来用于多个T-SC的低带宽业务数据面路由。如图11所示，以具有三个T-SC的系统为例进行说明：在共享T-SC 1106的带宽资源之前，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；终端1114的数据流通过T-SC 1106到达基站1110，再到达网络侧服务器1112；终端1116的数据流通过T-SC 1108到达基站1110，再到达网络侧服务器1112。在共享T-SC 1106的带宽资源之后，终端1102 的数据流通过T-SC 1104传输至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；终端1114的数据流通过T-SC 1106到达基站1110，再到达网络侧服务器1112；终端1116的数据流通过T-SC 1108传输至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。
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带宽富余、电量富余，同时还存在某些T-SC带宽不足以支持低带宽业务和/或电量不足以支持低带宽业务，那么就有可以将某个T-SC的带宽切分成多份用于多个T-SC的低带宽业务数据面路由，以满足低带宽业务的需求。这个可以是由多个T-SC触发的带宽分享过程，也可以是eNB(基站)触发的带宽分享过程，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，每个T-SC(图12中所示的T-SC 1、T-SC 2、…、T-SC n)只使用自己的带宽进行业务数据流传输。
步骤1204，当任一T-SC判断满足触发带宽分享条件时，向SDN控制器请求配置分享带宽。
其中，触发带宽分享的条件是各T-SC基于自身状态信息(包括其业务带宽、可用带宽、能耗状态等)的判断。例如，当T-SC 1处理低带宽业务(即业务带宽低于一定阈值)，且其可用带宽不足以支持低带宽业务，又或者是T-SC 1电量不足时，可以触发带宽分享，利用一些就近的T-SC回程传输其业务数据。
并且，触发带宽分析的请求信令是各T-SC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，包括各T-SC的业务带宽、剩余电量、可用带宽等。
步骤1206，SDN控制器收到一些T-SC的带宽分享请求后，为其从全局最优的角度计算出一个T-SC提供带宽分享，如图12所示选择T-SC 1 为其他n-1个T-SC(即T-SC 2、T-SC 3、…、T-SC n)提供带宽分享。
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)、低带宽业务本身的数据特点、一段时间内发起带宽分享的T-SC个数等。
步骤1208，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n个T-SC中(图12中所示的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1210，相应的T-SC和eNB依次执行路由表，则不同低带宽业务的数据流(和T-SC 1自身的业务数据流)通过T-SC 1的带宽进行传输。
二、eNB触发的带宽分享过程，具体如图13所示，包括：
步骤1302，初始状态时，每个T-SC(图13的T-SC 1、T-SC 2、…、T-SC n)只使用自己的带宽进行业务数据流传输。
步骤1304，当eNB判断满足触发带宽分享条件时，向SDN控制器发送请求配置分享带宽。
其中，触发带宽分享的条件是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，当存在好几个T-SC的可用带宽不能满足低带宽业务的需求，且eNB的可用带宽不足以分配给这几个T-SC时，或者eNB提供带宽的代价过高时可以触发带宽分享，利用就近的某个T-SC的回程资源提供所有这些T-SC数据传输的带宽或者降低综合的带宽提供代价。
并且，触发带宽分享的请求信令是eNB直接发送到SDN控制器。该请求信令携带了用于带宽分享的一些必要的信息，包括各T-SC的业务带宽、剩余电量、可用带宽等。
步骤1306，SDN控制器收到eNB发送的带宽分享请求后，为各T-SC从全局最优的角度计算出一个T-SC提供带宽分享，如图13所示选择T-SC 1为其他n-1个T-SC(即T-SC 2、T-SC 3、…、T-SC n)提供带宽分 享。
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)、低带宽业务本身的数据特点、一段时间内发起带宽分享的T-SC个数等。
步骤1308，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n个T-SC中(图13中所示的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1310，相应的T-SC和eNB依次执行路由表，则不同低带宽业务的数据流(和T-SC 1自身的业务数据流)通过T-SC 1的带宽进行传输。
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时，将一个T-SC的回程资源切分给多个低带宽业务的T-SC使用，实现了灵活的带宽配置。
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小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选择向所述任一终端化小区提供共享带宽的目标终端化小区；所述处理器410控制所述目标终端化小区处理所述目标业务。
在进一步的实施例中，所述处理器410向所述任一终端化小区和所述目标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目标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目标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根据分配的路由策略将所述目标业务的业务数据路由至所述目标终端化小区，并由所述目标终端化小区根据分配的路由策略将所述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/或预定时间段内需要提供共享带宽的终端化小区的数量和/或所述目标业务的数据特征，选择所述目标终端化小区。
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，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小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通过基站向所述SDN控制器发送所述触发请求。
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小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控制器发送所述触发请求。
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属性信息确定向所述任一终端化小区提供带宽的代价，其中，所述网络状态包括负载连接数量和信令负荷，所述目标业务的属性信息包括所述目标业务的数据大小。
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目标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目标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控制器可以将可用带宽较富裕的目标T-SC在回程链路上的带宽资源切分一部分提供给该低带宽业务使用，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小于或等于第一预定阈值；
    在确定接收到所述触发请求时，选择向所述任一终端化小区提供共享带宽的目标终端化小区；
    控制所述目标终端化小区处理所述目标业务。
  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，控制所述目标终端化小区处理所述目标业务的步骤，具体包括：
    向所述任一终端化小区和所述目标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目标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目标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根据分配的路由策略将所述目标业务的业务数据路由至所述目标终端化小区，并由所述目标终端化小区根据分配的路由策略将所述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/或预定时间段内需要提供共享带宽的终端化小区的数量和/或所述目标业务的数据特征，选择所述目标终端化小区。
  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小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，通过基站向所述SDN控制器发送所述触发请求。
  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小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，向所述SDN控制器发送所述触发请求。
  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属性信息确定向所述任一终端化小区提供带宽的代价，其中，
    所述网络状态包括负载连接数量和信令负荷，所述目标业务的属性信息包括所述目标业务的数据大小。
  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目标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目标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小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，选择向所述任一终端化小区提供共享带宽的目标终端化小区；
    控制单元，设置为控制所述目标终端化小区处理所述目标业务。
  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，设置为向所述任一终端化小区和所述目标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目标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目标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根据分配的路由策略将所述目标业务的业务数据路由至所述目标终端化小区，并由所述目标终端化小区根据分配的路由策略将所述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/或预定时间段内需要提供共享带宽的终端化小区的数量和/或所述目标业务的数据特征，选择所述目标终端化小区。
  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小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，通过基站向所述SDN控制器发送所述触发请求。
  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；
    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，其中，所述目标业务的带宽需求小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向所述任一终端化小区提供共享带宽时，向所述SDN控制器发送所述触发请求。
  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属性信息确定向所述任一终端化小区提供带宽的代价，其中，
    所述网络状态包括负载连接数量和信令负荷，所述目标业务的属性信息包括所述目标业务的数据大小。
  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目标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目标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/CN2016/100550 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 WO2017133262A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11570705B2 (en) 2018-08-03 2023-01-31 Fujitsu Limited Method of securing wireless backhaul, a child base station, a parent base station and methods in the child and parent base stations

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105578534B (zh) 2016-02-03 2019-10-11 宇龙计算机通信科技(深圳)有限公司 终端化小区基于sdn控制的带宽共享方法及带宽共享装置
CN105764098B (zh) * 2016-02-03 2019-03-08 宇龙计算机通信科技(深圳)有限公司 终端化小区基于sdn控制的带宽共享方法及带宽共享装置
WO2022104754A1 (zh) * 2020-11-20 2022-05-27 达闼机器人股份有限公司 网络资源的管理方法、管理装置、电子设备及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104170431A (zh) * 2012-03-13 2014-11-26 高通股份有限公司 用于由毫微微蜂窝小区进行回程共享的方法和装置
CN104918288A (zh) * 2014-03-11 2015-09-16 中国移动通信集团公司 一种流量共享方法、设备及系统
WO2015164842A1 (en) * 2014-04-24 2015-10-29 Hughes Network Systems, Llc Methods and system in supporting real time services with spectrum efficiency in a satellite network
CN105764098A (zh) * 2016-02-03 2016-07-13 宇龙计算机通信科技(深圳)有限公司 终端化小区基于sdn控制的带宽共享方法及带宽共享装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101212777B (zh) * 2006-12-29 2012-05-23 朗迅科技公司 在回程连接中使用无线链路的方法和系统
CN102149144B (zh) * 2011-04-02 2014-07-09 华为技术有限公司 调整带宽的方法、微基站、家庭网关和系统
CN104717685A (zh) * 2015-03-31 2015-06-17 深圳酷派技术有限公司 终端化小区之间的协作方法和系统、终端

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104170431A (zh) * 2012-03-13 2014-11-26 高通股份有限公司 用于由毫微微蜂窝小区进行回程共享的方法和装置
CN104918288A (zh) * 2014-03-11 2015-09-16 中国移动通信集团公司 一种流量共享方法、设备及系统
WO2015164842A1 (en) * 2014-04-24 2015-10-29 Hughes Network Systems, Llc Methods and system in supporting real time services with spectrum efficiency in a satellite network
CN105764098A (zh) * 2016-02-03 2016-07-13 宇龙计算机通信科技(深圳)有限公司 终端化小区基于sdn控制的带宽共享方法及带宽共享装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11570705B2 (en) 2018-08-03 2023-01-31 Fujitsu Limited Method of securing wireless backhaul, a child base station, a parent base station and methods in the child and parent base stations

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