WO2017133262A1

WO2017133262A1 - Sdn-controlled bandwidth sharing method for use with terminal small cell, and bandwidth sharing device

Info

Publication number: WO2017133262A1
Application number: PCT/CN2016/100550
Authority: WO
Inventors: 张云飞; 郑倩; 雷艺学
Original assignee: 宇龙计算机通信科技(深圳)有限公司
Priority date: 2016-02-03
Filing date: 2016-09-28
Publication date: 2017-08-10
Also published as: CN105764098A; CN105764098B

Abstract

The invention provides a SDN-controlled bandwidth sharing method for use with a terminal small cell, and a bandwidth sharing device. The bandwidth sharing method comprises: determining, by a SDN controller, whether a trigger request for triggering bandwidth sharing is received, wherein the trigger request indicates that when a terminal small cell is processing a target service for a backhaul link, another terminal small cell is required to share bandwidth thereof, and a bandwidth requirement of the target service is less than or equal to a first predefined threshold; upon determining that the trigger request is received, selecting a target terminal small cell that shares the bandwidth thereof to the terminal small cell; and controlling the target terminal small cell to process the target service. According to the invention, the SDN controller can split a part of bandwidth from the bandwidth resource of a backhaul link available to a bandwidth-rich target terminal small cell (T-SC) and provide the same for use in a low-bandwidth service, ensuring applications of a wireless backhaul sharing mechanism between T-SCs, and realizing a technical effect of flexibly configuring bandwidth resources for a backhaul link.

Description

Terminal sharing cell based on SDN control bandwidth sharing method and bandwidth sharing device

This application claims the priority of the Chinese patent application filed on February 3, 2016, the Chinese Patent Office, the application number is 201610075748.7, and the invention name is "the terminal sharing cell based on SDN control bandwidth sharing method and bandwidth sharing device". This is incorporated herein by reference.

Technical field

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.

Background technique

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.

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.

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.

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.

In the third type of scheme, 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. However, when the T-SC wireless backhaul resources are actually utilized, 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.

Therefore, how to effectively ensure that the wireless backhaul sharing mechanism between the T-SCs is applied to implement flexible bandwidth configuration has become an urgent technical problem to be solved.

Summary of the invention

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. 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. Technical effects.

In view of this, according to the first aspect of the present invention, a method for bandwidth sharing based on SDN control of a terminalized cell is provided, including: determining, by the SDN controller, whether a trigger request for sharing bandwidth is received, the trigger request indicating any terminal When processing the target service on the backhaul link, the shared bandwidth needs to be provided by 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.

In the technical solution, 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. When the shared bandwidth needs to be provided by other T-SCs, 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.

In the above technical solution, preferably, 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.

In this technical solution, by configuring a routing policy of service data to any of the foregoing terminalized cells and the target terminalized cell, 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.

Specifically, 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. Here, 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.

In any one of the foregoing technical solutions, preferably, 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.

In the technical solution, by configuring a routing policy to the network side server to the base station, 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.

In any one of the foregoing technical solutions, preferably, 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.

In any one of the foregoing technical solutions, 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.

According to the second aspect of the present invention, a method for bandwidth sharing based on SDN control of a terminalized cell is also provided, 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.

In this technical solution, when any terminalized cell passes the low bandwidth service on the backhaul link (that is, the target service whose bandwidth requirement is less than or equal to the first predetermined threshold), if it is determined that it needs to be provided by other terminalized cells, When the bandwidth is shared, 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, in turn, 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.

In the above technical solution, 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. When 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.

In any one of the foregoing technical solutions, 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.

In this technical solution, when any of the terminalized cells have more available bandwidth (that is, greater than or equal to a second predetermined threshold), and the remaining power is also large (ie, greater than or equal to the second predetermined power value), 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.

According to the third aspect of the present invention, a method for bandwidth sharing based on SDN control of a terminalized cell is further provided, 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.

In the technical solution, 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. 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.

In the above technical solution, preferably, according to the status information of any of the terminalized cells and the status information of the base station itself, determining whether the shared bandwidth needs to be provided by the other terminalized cells to the any terminalized cell Specifically, 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.

Preferably, 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.

It should be noted that 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.

In any one of the foregoing technical solutions, 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.

In this technical solution, 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.

In any one of the foregoing technical solutions, preferably, 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.

In this technical solution, by receiving a routing policy configured by the SDN controller to the base station, 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.

According to the fourth aspect of the present invention, a bandwidth sharing apparatus based on SDN control of a terminalized cell is further provided, 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.

In the above technical solution, preferably, 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. And routing, by the target terminalized cell, the service data to the base station according to an allocated routing policy.

In any one of the foregoing technical solutions, preferably, 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.

In any one of the foregoing technical solutions, preferably, 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.

In any one of the foregoing technical solutions, 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.

According to the fifth aspect of the present invention, a bandwidth sharing apparatus based on SDN control of a terminalized cell is further proposed, 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. When 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.

In the above technical solution, preferably, 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.

In any one of the foregoing technical solutions, 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.

According to the sixth aspect of the present invention, a bandwidth sharing apparatus based on SDN control of a terminalized cell is further proposed, 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.

In the technical solution, 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.

In the foregoing technical solution, preferably, 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.

Preferably, 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.

In any one of the foregoing technical solutions, 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.

In any one of the foregoing technical solutions, preferably, 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.

In the technical solution, by receiving a routing policy configured by the SDN controller to the base station, the base station can configure the optimal route according to the SDN controller (the SDN controller can integrate the global topology to configure the optimal route for the base station) and the network. 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.

According to the seventh aspect of the present invention, an SDN controller is further provided, comprising: the SDN control based bandwidth sharing device of the terminalized cell according to the fourth aspect.

According to an eighth aspect of the present invention, a terminalized cell is further provided, including: The terminalized cell described in the fifth aspect is based on an SDN controlled bandwidth sharing device.

According to a ninth aspect of the present invention, a base station is further provided, comprising: the SDN control based bandwidth sharing device of the terminalized cell according to the sixth aspect.

Through the above technical solution, 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.

DRAWINGS

Figure 1 shows a schematic diagram of the network architecture of three Small Cell schemes;

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;

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;

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;

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;

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.

FIG. 12 is a flow chart showing T-SC trigger bandwidth sharing according to an embodiment of the present invention; FIG.

FIG. 13 shows a flow chart of eNB triggering bandwidth sharing according to an embodiment of the present invention. Figure

Figure 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.

detailed description

The present invention will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a full understanding of the invention, but the invention may be practiced otherwise than as described herein. Limitations of the embodiments.

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.

As shown in FIG. 2, the method for bandwidth sharing based on SDN control of a terminalized cell according to the first embodiment of the present invention 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.

In the technical solution, 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. When 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.

In any one of the above technical solutions, preferably, further comprising: based on the SDN controller 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.

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.

As shown in FIG. 3, 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.

In the above technical solution, preferably, 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.

In any one of the foregoing technical solutions, preferably, 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.

In any of the above technical solutions, preferably, 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.

Figure 4 shows a schematic block diagram of an SDN controller in accordance with an embodiment of the present invention.

As shown in FIG. 4, the SDN controller 400 according to an embodiment of the present invention 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.

As shown in FIG. 5, a method for bandwidth sharing based on SDN control of a terminalized cell according to a second embodiment of the present invention 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.

In any one of the foregoing technical solutions, 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.

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.

As shown in FIG. 6, 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. .

In the foregoing technical solution, 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.

In any one of the foregoing technical solutions, 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.

Figure 7 shows a schematic block diagram of a terminalized cell in accordance with an embodiment of the present invention.

As shown in FIG. 7, the terminalized cell 700 according to an embodiment of the present invention 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.

As shown in FIG. 8, a method for bandwidth sharing based on SDN control of a terminalized cell according to a third embodiment of the present invention 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.

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.

As shown in FIG. 9, 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.

In the technical solution, the base station determines whether it needs to be used by other terminalized cells to any of the above When the terminalized cell provides the shared bandwidth, 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.

In the foregoing technical solution, 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.

Preferably, 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.

In any one of the foregoing technical solutions, 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.

In any one of the foregoing technical solutions, preferably, 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.

Figure 10 shows a schematic block diagram of a base station in accordance with an embodiment of the present invention.

As shown in FIG. 10, a base station 1000 according to an embodiment of the present invention includes a bandwidth sharing apparatus 900 based on SDN control of a terminalized cell as shown in FIG.

In summary, 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.

Specifically, in a mobile environment, 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. 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. Before the bandwidth resources of the T-SC 1106 are shared, the data stream of the terminal 1102 reaches the base station 1110 through the T-SC 1104, and then reaches the network side server. 1112: 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. After sharing the bandwidth resources of the T-SC 1106, 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 specific implementation process of the present invention is described in detail below:

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:

1. The bandwidth bundling process triggered by the T-SC, as shown in Figure 12, 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.

And 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) 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.

In step 1206, after receiving the bandwidth sharing request of some T-SCs, 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).

The size of n(n≥2) can be selected based on different criteria, such as the computing power of the SDN controller (n cannot be taken too much), 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.

Second, the bandwidth sharing process triggered by the eNB, as shown in Figure 13, 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.

And, 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.

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).

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.

Figure 14 shows a schematic block diagram of another SDN controller in accordance with an embodiment of the present invention.

As shown in FIG. 14, 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. For example, 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.

In one embodiment of the invention, 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.

In a further embodiment, 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.

In a further embodiment, 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.

In a further embodiment, 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.

For details, refer to the description of the related steps in the corresponding embodiment of FIG. 2, and the details are not described here.

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. For example, the respective units (e.g., the determining unit 602, the transmitting unit 604, the determining unit 606, etc.) described in 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.

In one embodiment of the invention, 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.

In a further embodiment, when the available bandwidth of the any terminalized cell cannot meet the bandwidth requirement of the target service, and/or the remaining power of the any terminalized cell is lower than the first predetermined power value, The processor 710 determines that shared bandwidth needs to be provided by other terminalized cells.

In a further embodiment, 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.

For details, refer to the description of the related steps in the corresponding embodiment of FIG. 5, and the details are not described herein.

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. For example, the respective units described in FIG. 9 (for example, the acquisition unit 902, the determination unit 904, the transmission unit 906, the determination unit 908, etc.) 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.

In one embodiment of the invention, the memory 1014 stores a plurality of instructions that are executed by the processor 1010 to implement a bandwidth sharing method. Specifically, 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. When the cell provides shared bandwidth, the processor 1010 sends the trigger request to the SDN controller.

In a further embodiment, 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 When the cost of providing bandwidth to the any terminalized cell by the base station is higher than expected, the processor 1010 determines that the shared bandwidth needs to be provided by the other terminalized cell to the any terminalized cell.

In a further embodiment, 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.

In a further embodiment, 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.

In a further embodiment, 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.

For details, refer to the description of the related steps in the corresponding embodiment of FIG. 8 for the specific implementation of the foregoing instruction in the processor 1010, and details are not described herein.

It should be understood by those skilled in the art that in the above description, 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 technical solution of the present invention is described in detail above with reference to the accompanying drawings. 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.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A method for bandwidth sharing based on SDN control in a terminalized cell, which is characterized by:

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 target service is The bandwidth requirement is less than or equal to the first predetermined threshold;

When it is determined that the trigger request is received, selecting a target terminalized cell that provides shared bandwidth to any of the terminalized cells;

Controlling the target terminalized cell to process the target service.
The SDN control-based bandwidth sharing method of the terminalized cell according to claim 1, wherein the step of controlling the target terminalized cell to process the target service includes:

And configuring a routing policy for the service data to 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 control-based bandwidth sharing method of the terminalized cell according to claim 1, further comprising:

The target terminalized cell is selected based on capability information of the SDN controller and/or a number of terminalized cells that need to provide shared bandwidth and/or data characteristics of the target service within a predetermined time period.
The SDN control-based bandwidth sharing method of the terminalized cell according to any one of claims 1 to 3, wherein the trigger request comprises:

The available bandwidth information of any of the terminalized cells, the bandwidth requirement of the target service, and the remaining power of any of the terminated cells.
A method for bandwidth sharing based on SDN control in a terminalized cell, which is characterized by:

When processing the target service on the backhaul link, determining whether the shared bandwidth needs to be provided by other terminalized cells according to the status information of any of the terminalized cells, where the bandwidth requirement of the target service is less than or Equal to the first predetermined threshold;

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 SDN control-based bandwidth sharing method of the terminalized cell according to claim 5, wherein the step of determining whether the shared bandwidth is required by the other terminalized cells according to the status information of any of the terminalized cells includes:

When the available bandwidth of the any terminalized cell cannot meet 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 other terminalized cells need to be determined. Provide shared bandwidth.
The SDN control-based bandwidth sharing method of the terminalized cell according to claim 5 or 6, further comprising:

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;

And determining, by the base station, 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 a second predetermined power value. The SDN controller sends the information of any of the terminalized cells, so that the SDN controller determines whether the selected terminalized cell is to provide shared bandwidth to other terminalized cells.
A method for bandwidth sharing based on SDN control in a terminalized cell, which is characterized by:

Obtaining, by the base station, state information of any terminalized cell that is used for processing the target service on the backhaul link, and determining, according to the state information of the any terminalized cell and the state information of the base station, whether the other terminalized cell needs to be Any one of the terminalized cells provides a shared bandwidth, where a bandwidth requirement of the target service is less than or equal to a first predetermined threshold;

Determining that shared bandwidth needs to be provided by any other terminalized cell to any of the terminalized cells The trigger request is sent to the SDN controller.
The SDN control-based bandwidth sharing method of the terminalized cell according to claim 8, wherein determining whether the other terminalized cell needs to be used according to the status information of the any terminalized cell and the status information of the base station itself The step of providing shared bandwidth to any of the terminalized cells 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 the base station is in the When the cost of providing bandwidth for a terminalized cell is higher than expected, it is determined that the shared bandwidth needs to be provided by the other terminalized cells to any of the terminalized cells.
The SDN control-based bandwidth sharing method of the terminalized cell according to claim 9, further comprising:

Determining, according to the network status of the base station and attribute information of the target service, a bandwidth for providing bandwidth to any of the terminalized cells, where

The network status includes a load connection quantity and a signaling load, and the attribute information of the target service includes a data size of the target service.
The SDN control-based bandwidth sharing method of the terminalized cell according to claim 8, further comprising:

Determining whether a trigger request for the shared bandwidth sent by the any terminalized cell is received;

When it is determined that the trigger request of the shared bandwidth sent by the any terminalized cell is received, the trigger request of the shared bandwidth is forwarded to the SDN controller.
The SDN control-based bandwidth sharing method for a terminalized cell according to any one of claims 8 to 11, further comprising:

Receiving, by the SDN controller, a routing policy respectively configured to the base station, the any terminalized cell, and the target terminalized cell that provides the shared bandwidth for the any terminalized cell;

And routing the routing policy configured by the SDN controller to the any terminalized cell and the target terminalized cell to a corresponding terminalized cell.
A bandwidth sharing device based on SDN control of a terminalized cell is applicable to an SDN controller, and is characterized in that:

Determining a unit, configured to determine whether a trigger request for the shared bandwidth is received, the triggering request It is required to indicate 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;

a selecting unit, configured to: when the determining unit determines that the trigger request is received, select a target terminalized cell that provides a shared bandwidth to any of the terminalized cells;

And a control unit, configured to control the target terminalized cell to process the target service.
The SDN control-based bandwidth sharing device of the terminalized cell according to claim 13, wherein the control unit comprises:

a configuration unit, configured to configure a routing policy for the service data to the terminalized cell and the target terminalized cell respectively;

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 a backhaul chain for the any terminalized cell and the target terminalized cell The base station of the path is respectively forwarded by the base station to the corresponding terminalized cell, 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, and The target terminalized cell routes the service data to the base station according to an allocated routing policy.
The SDN control-based bandwidth sharing device of the terminalized cell according to claim 13, wherein the selecting unit is further configured to:

The target terminalized cell is selected based on capability information of the SDN controller and/or a number of terminalized cells that need to provide shared bandwidth and/or data characteristics of the target service within a predetermined time period.
The SDN control-based bandwidth sharing device of the terminalized cell according to any one of claims 13 to 15, wherein the trigger request comprises:

The available bandwidth information of any of the terminalized cells, the bandwidth requirement of the target service, and the remaining power of any of the terminated cells.
A bandwidth sharing device based on SDN control of a terminalized cell is applicable to any terminalized cell, and is characterized in that:

a determining unit, configured to determine, according to status information of any of the terminalized cells, whether to be provided by other terminalized cells when the target service on the backhaul link is processed by any of the terminalized cells Sharing bandwidth, wherein a bandwidth requirement of the target service is less than or equal to a first predetermined threshold;

And a sending unit, configured to send, by the base station, the trigger request to the SDN controller when the determining unit determines that the shared bandwidth needs to be provided by other terminalized cells.
The SDN control-based bandwidth sharing device of the terminalized cell according to claim 17, wherein the determining unit is specifically configured to:

When the available bandwidth of the any terminalized cell cannot meet 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 other terminalized cells need to be determined. Provide shared bandwidth.
The SDN control-based bandwidth sharing device of the terminalized cell according to claim 17 or 18, further comprising:

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 whether the remaining power of the any terminalized cell is greater than or equal to a second predetermined power value;

The sending unit is further configured to: determine, by the determining unit, 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 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.
A bandwidth sharing device based on SDN control of a terminalized cell is applicable to a base station, and is characterized in that:

An obtaining unit, configured to acquire state information of any terminalized cell that processes a target service on the backhaul link;

a determining unit, 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 target The bandwidth requirement of the service is less than or equal to the first predetermined threshold;

And a sending unit, configured to send the trigger request to the SDN controller when the determining unit determines that the shared bandwidth needs to be provided by the other terminalized cell to the any terminalized cell.
The terminal sharing cell based on SDN control according to claim 20 The determining unit is specifically configured to:

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 the base station is in the When the cost of providing bandwidth for a terminalized cell is higher than expected, it is determined that the shared bandwidth needs to be provided by the other terminalized cells to any of the terminalized cells.
The SDN control-based bandwidth sharing device of the terminalized cell according to claim 21, wherein the determining unit is further configured to:

Determining, according to the network status of the base station and attribute information of the target service, a bandwidth for providing bandwidth to any of the terminalized cells, where

The network status includes a load connection quantity and a signaling load, and the attribute information of the target service includes a data size of the target service.
The SDN control-based bandwidth sharing device of the terminalized cell according to claim 20, further comprising: 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 determining unit determines to receive the trigger request of the shared bandwidth sent by the any terminalized cell, forward the trigger request of the shared bandwidth to the SDN controller.
The SDN control-based bandwidth sharing device of the terminalized cell according to any one of claims 20 to 23, further comprising:

a receiving unit, configured to receive a routing policy configured by the SDN controller to the base station, the any terminalized cell, and a target terminalized cell that provides a shared bandwidth for the any 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 a corresponding terminalized cell.