CN104023335A - SDN (Software Defined Network)-based heterogeneous network convergence framework - Google Patents
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Abstract
The invention provides a SDN (Software Defined Network)-based heterogeneous network convergence framework. According to the framework, the core idea of control and data separation in the software defined network is referred, a controller is added in an EPC core network, user identity information is packaged to be a unique user identifier to serve as the identity certificate during the network access and switching process. The concept of the user identifier is used, a method of realizing virtual switching under the control of the controller is brought forward, the switching access process can be theoretically simplified, and network access time delay can then be reduced. After switching, the IP remains unchanged, the time spent on IP layer switching in the case of heterogeneous network switching is saved, the target of reducing the entire switching time delay is achieved, IP address management and user safety management in a mobile environment are facilitated as the IP is maintained, and a feasible solution is provided for solving the problem of seamless switching between the LTE network and the WLAN network.
Description
Technical field
Patent of the present invention relates to wireless communication field, especially the heterogeneous network switching aspect of radio communication.
Background technology
Along with becoming increasingly abundant of wireless terminal application, and the great-leap-forward development of wireless terminal device technical functionality, various wireless terminal device quantity rapid growths.The report " 2012KPCB Internet Trends Year-End Update " of Mary Meeker shows: global smart mobile phone user annual growth 42%, total customer volume has exceeded 1,100,000,000 people, account for global cellie 17%, and also have many growing spaces; The whole America has more than 29% adult to have electronic reading device or panel computer; The network traffics that whole world mobile device brings account for 13% of total flow; In India, mobile Internet access flow formally surmounts the flow of traditional computer in the second half year in this year; The quantity of whole world mobile device (smart mobile phone+panel computer) surmounts traditional computer (desktop computer+notebook computer) the second season in 2013.For Chinese market, the investigation that Google carried out in 2013 shows, the popularity rate of Chinese city smart mobile phone from 2012 33% rise to 2013 47%, nearly half Chinese Urban Residents has had smart mobile phone, and 69% user can use smart mobile phone access the Internet every day; The report that the Flurry of market research agency issues estimates to have activated smart mobile phone in Chinese market in by the end of February, 2013 by and panel computer quantity is 2.46 hundred million, and the U.S. is 2.3 hundred million; In future, will have increasing mobile device and come into operation.
The extensive growth of mobile device, makes wireless communication needs rapid growth, and in order to meet the different demands of various wireless communication business, various wireless communication protocols arise at the historic moment and development and evolution.In order to meet more high coverage rate, 2G, 3G, LTE network and the multiple heterogeneous network of WLAN (wireless local area network) (WLAN) exist simultaneously.Does multiple wireless access way comprise coexisting of Femtocell, 3G, LTE, Wifi etc., also for we have brought new problem: when user uses these networks under mobile context, how to realize the seamless switching between these heterogeneous networks?
Software defined network (Software Defined Network, SDN) provides new approaches for structure and the evolution of heterogeneous network converged.SDN is a kind of new network innovation framework being proposed by Clean Slate seminar of Stanford Univ USA, its core technology OpenFlow is by separating network equipment chain of command and data surface, the abstract of control plane proposed, realize the flexible control to network traffics, for the innovation of core network and application provides good platform.
Summary of the invention
The object of patent of the present invention is to provide a kind of framework of the heterogeneous network converged based on SDN, and the thought of utilizing software defined network is EPC core network access control device; And proposed that a kind of new heterogeneous network switch method---the control by controller realizes " virtual switching ", can effectively simplify in theory switching access procedure, thereby reduce network access delay.And for IP keeps providing feasible solution, while saving heterogeneous network switching, switch the time of cost at IP layer, thereby reach the target that reduces handover delay, be intended to solve the problem of switching and merging between LTE network and wlan network.
This invention is implemented in order to reach above-mentioned target by the following technical solutions:
1, develop a core net controller based on SDN, and this controller is directly connected with P-GW network element, MME network element, eNodeB and each wireless aps of core net, so that direct communication each other;
2, for this framework exploitation control protocol stack, in the time of controller and other unit communication, carry out agreement control;
3, the IP of LTE and wlan network is shared out the work and unify to transfer to P-GW cell processing, the IP distribution mechanism of unified different networks, for virtual switching is prepared;
4, when first when access network (connect during taking access network first an eNodeB be described for example) of user, P-GW network element is this IP address of UE distribution, the MAC Address of this UE, IP address and other user authentication information are sent to controller by base station, controller becomes a User Identity symbol User Identifier (hereinafter to be referred as UI code) to send to source base station, the identity documents as UE in network these Information encapsulations;
Wherein, in heterogeneous network converged framework proposed by the invention, its handoff procedure adopts following technical scheme (to switch to example explanation from LTE to Wifi network):
Step 1:UE constantly monitors the service quality that judges source base station with certain frequency, when QoS parameter lower than set threshold value time, UE " decisions " initiate switching;
Step 2:UE sends handover request information to source base station, and handover request is conveyed to controller by base station;
Step 3: controller calls existing base station/AP geographical location information, detect near the base station/AP signal strength signal intensity of UE, and load and the service conditions of each AP in comprehensive whole network, utilize the handover decision algorithm providing, for UE picks out best switching target AP.
Step 4: controller sends handover request instruction to target AP, after controller receives that target AP is agreed to reply, the target AP identification code that will be switched to is issued source base station, and the UI identification code of current UE is sent to target AP;
Step 5: source base station is sent and switches start information to UE by the form of broadcast, the AP identification code that will be switched to is additional issues UE, informs that UE removes to be switched to this AP;
Step 6:UE receives after the broadcast message of base station, replies to base station response message;
Step 7: source base station informs that controller UE is about to switch, and disconnects subsequently with this UE;
Step 8:UE sends connection application message to target AP, and application connects.
Step 9: due to the UI information of existing this UE in target AP, target AP only need be made comparisons the MAC Address in the MAC Address of UE and existing UI information:
If a) the consistent UE of current application access is the UE that controller had been notified, thereby allows UE directly to access, send and agree to link information Connection Success, UE and target AP connect;
If b) inconsistent is illegally to access UE, send refusal link information Connection Refuse, UE connects with source base station again.
Step 10: suppose that mac address information is consistent, UE access target AP, target AP is no longer redistributed the work of IP, and UE continues to use the IP address in corresponding UI identifier, and the virtual switching of being initiated and being controlled by controller completes.
A kind of heterogeneous network converged framework based on SDN that the present invention proposes, its core feature and beneficial effect have:
1, control section and data division are separated: in EPC core network architecture, add independently controller, control the handoff procedure between heterogeneous network.Be convenient to the innovation of network agile Management and application.
2, unify the IP distribution mechanism of networks with different systems: the IP of LTE and wlan network is shared out the work and unifies to transfer to P-GW cell processing, meet the consistency of IP assigning process, be convenient to IP address management;
3, introduce " virtual switching ": user's identifier is as unique authentication of UE, in the time of handoff procedure later stage UE access target AP, carry out authentication by the MAC Address in MAC Address and the existing UI code of comparison UE, save shaking hands and authentication process under normal circumstances, greatly saved network access delay;
4, IP keeps principle: after switching, UE continues to use former IP, target AP for it redistributes IP, has been saved IP layer switching flow without again, has reduced switching required time, reached the object of effective reduction handover delay, IP keep also make address administration and security management easier.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some examples of the application, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
figure1, a kind of heterogeneous network converged Organization Chart based on SDN;
figure2, from LTE to Wifi switching flow figure;
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out to clear, complete description, obviously, described embodiment is a part of embodiment of the application, instead of whole embodiment.Based on the embodiment in the application, the every other embodiment that those of ordinary skill in the art obtain, belongs to the scope that the application protects.
Fig. 1 is a kind of heterogeneous network converged Organization Chart based on SDN that the present invention proposes, and the various piece in this Organization Chart is described as follows:
1, core: controller.Controller is positioned at core net center, is connected respectively with P-GW, eNodeB and various WAP (wireless access point) by wired mode, is convenient to and the direct communication of each unit.Controller has three functional units: 1) user identifier wrapper, be responsible for the IP address of UE, MAC Address and other user authentication information to be packaged into User Identity symbol (User Identifier, hereinafter to be referred as UI code); 2) connected user authenticated table, the information recording of connected user authenticated in responsible network.Often there is the first access network of user, be this user and set up a record, its UI code is write to subscriber's meter; 3) virtual switching controls, be responsible for selecting the target AP/base station in handoff procedure, controller, according to the physical location of each base station/AP and network synthesis business load situation, uses specific decision algorithm to pick out optimal objective AP/ base station, and guides UE to be switched to this target BS/AP.
2, operation rule: protocol stack.When controller and other unit communication, carry out agreement control;
3, access node: traditional eNodeB base station and the again wireless access point device of design.In the architecture network that the present invention proposes, use traditional eNodeB base station and Wifi AP, WiMAX AP through redesigning.Traditional Wifi AP carries the function of distributing IP, in the framework proposing at this patent, IP assignment is peeled away from AP, the IP under heterogeneous networks shares out the work and is all completed by P-GW entity completely, thereby the IP assigning process of heterogeneous network is reached unanimously, be convenient to IP management;
4, user's access and authentication system: adopt unique User Identity symbol (User Identifier, hereinafter to be referred as UI code).1) when UE asks in access network certain base station/AP for the first time, (connect during taking access network first an eNodeB be described for example), P-GW entity is that this UE distributes an exclusive IP address, the MAC Address of this UE, IP address and other user authentication information are sent to controller by base station, these Information encapsulations are become a User Identity symbol (User Identifier by controller, hereinafter to be referred as UI code) send to source base station, the identity documents as UE in network; 2) controller is set up current UE record in connected user authenticated table, and the UI code of this UE is write in record, and UE completes network insertion.
Fig. 2 is the switching flow figure from LTE to Wifi network, and the switching flow from Wifi to LTE network is identical with it.The each step of Fig. 2 is described as follows:
201:UE constantly monitors the service quality that judges source base station with certain frequency, when QoS parameter lower than set threshold value time, UE " decisions " initiate switching;
202:UE sends handover request information to source base station, and handover acknowledge information is replied according to oneself state in base station, and this handover request is sent to controller;
203: controller is replied the known information of knowing of handover request, then call existing base station/AP geographical location information, detect near the base station/AP QoS parameter of UE, and load and the service conditions of each AP in comprehensive whole network, the handover decision algorithm that use provides, for UE picks out best switching target AP.
205: controller sends handover request instruction to target AP, target AP sends handover acknowledge information to controller.Controller is received after response message, and the UI identification code of application switching UE is sent to target AP;
206: the target AP identification code that controller will be switched to is issued source base station, source base station sends target AP identification code by the form of base station broadcast to UE, informs that UE removes to be switched to this AP;
207:UE receives after the broadcast message of base station, sends to base station handoff response information, and this handoff response is conveyed to controller by source base station, and notification controller UE will start to switch;
208:UE and source base station disconnect, and send connection application message afterwards to target AP;
209: due to the UI information of existing this UE in target AP, target AP only need be made comparisons the MAC Address in the MAC Address of UE and existing UI information:
If c) the consistent UE of current application access is the UE that controller had been notified, thereby allows UE directly to access, send and agree to link information, UE and target AP connect;
If d) inconsistent this UE is illegal access UE, target AP sends refusal link information to UE, and UE connects with source base station again.
210: suppose that mac address information is consistent, UE access target AP, target AP is no longer redistributed IP for it, and UE continues to use the former IP address in corresponding UI identifier, and virtual handoff procedure completes.
In framework proposed by the invention, used virtual identifier UI as UE the unique identity documents in the identify label in network and handoff procedure, in step 210: whether identically only need check MAC Address while 1) accessing target AP/base station, the steps such as authentication of shaking hands while having saved normal access, have saved network access delay; 2) after switching, keep IP constant, do not need to redistribute IP, saved again the switching time of IP layer.Comprehensively get off to use this " virtual switching " mode can effectively reduce handover delay, the characteristic that IP keeps is also conducive to address administration and the security management under mobile network environment.Improve the whole efficiency of network, for the heterogeneous network converged between LTE and wlan network provides solution.
Claims (8)
1. the heterogeneous network converged framework based on SDN, is characterized in that:
1) described framework utilizes the thought of software defined network for EPC core net access control device, and control function is peeled away from network data area, concentrates on controller.Controller and P-GW network element, MME network element, eNodeB and wireless aps direct communication, and formulate one group of protocol stack and in communication process, carry out agreement control; 2) unify the IP configuration mechanism of heterogeneous networks, IP is configured to responsibility unification and transfer to P-GW unit to realize; 3) user identifier of subscriber equipment encapsulation (User Identifier is called for short UI) that controller is access network, the unique identify label as this UE in network.Controller is set up current user equipment UE record in connected user authenticated table, and the UI of this UE is write in record, and UE completes network insertion; 4) realize " virtual switching " by the control of controller, saved original IP layer and switched, and kept the IP address of switching front and back subscriber equipment not change.
2. a kind of heterogeneous network converged framework based on SDN according to claim 1, is characterized in that:
It is EPC core net access control device that described framework utilizes the thought of software defined network, controller and P-GW network element, MME network element, eNodeB and wireless aps direct communication, and formulate one group of protocol stack and in communication process, carry out agreement control; Controller has three major functions: a) user data encapsulation, produces User Identity symbol (User Identifier is called for short UI); B) foundation of connected user authenticated table with write, the user UI code of access network is write to record; B) virtual switching controls, for UE decision-making goes out the best target AP of switching, sends to target AP by the UI code of UE, and the identification code of target AP is sent to UE by source base station, instructs UE to switch.
3. a kind of heterogeneous network converged framework based on SDN according to claim 2, is characterized in that:
When first when access network (connect during taking access network first an eNodeB be described for example) of user, P-GW network element is this IP address of UE distribution, the MAC Address of this UE, IP address and other user authentication information are sent to controller by base station, controller becomes a User Identity symbol User Identifier (hereinafter to be referred as UI code) to send to source base station these Information encapsulations, identity documents as UE in network, and the identity documents in virtual handoff procedure afterwards.
4. a kind of heterogeneous network converged framework based on SDN according to claim 2, is characterized in that:
In controller, have connected user authenticated table, when after the first access network of user, controller is set up current user equipment UE record in connected user authenticated table, by this just for UE create UI code write in record.
5. a kind of heterogeneous network converged framework based on SDN according to claim 2, is characterized in that:
In the time that UE initiates to switch, this handover information is sent to controller by source base station, controller calls existing base station/AP geographical location information, detect all base station/AP signal strength signal intensities near the certain distance of UE, and load and the service conditions of each AP in comprehensive whole network, the handover decision algorithm that utilization provides, for UE picks out best switching target AP.And the UI code of UE is sent to target AP, the identification code of target AP is sent to source base station.
6. a kind of heterogeneous network converged framework based on SDN according to claim 5, is characterized in that:
The target AP identification code that source base station goes out controller decision-making sends to UE by the form of base station broadcast, informs that UE removes linking objective AP.
7. a kind of heterogeneous network converged framework based on SDN according to claim 6, is characterized in that:
In the time of UE request access target AP, the MAC Address in the UI code that target AP only need send over the MAC Address of UE and controller compares, if consistent, agrees to that UE accesses, and virtual switching completes; If inconsistent, refuse UE access, UE is connected with source base station again.
8. a kind of heterogeneous network converged framework based on SDN according to claim 7, is characterized in that:
After UE and target AP connect, the IP address of UE keeps the IP address before switching, no longer redistributes.Save the step that IP layer switches, reduced handover delay.
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Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104539457A (en) * | 2014-12-30 | 2015-04-22 | 北京邮电大学 | Device unified control method, device and system based on software definition technology |
| CN104618244A (en) * | 2015-01-19 | 2015-05-13 | 迈普通信技术股份有限公司 | SDN network and traditional IP network intercommunicating method and system |
| CN104853392A (en) * | 2015-04-02 | 2015-08-19 | 宇龙计算机通信科技(深圳)有限公司 | Method and device for mobility management of terminal |
| CN105072650A (en) * | 2015-07-15 | 2015-11-18 | 西安电子科技大学 | Communication system and communication method for realizing quick switching of mobile terminal between access points (APs) |
| CN105072620A (en) * | 2015-07-08 | 2015-11-18 | 东南大学 | Network visualization-based resource sharing method among service providers |
| CN105262624A (en) * | 2015-10-29 | 2016-01-20 | 国网信息通信产业集团有限公司 | Heterogeneous distribution communication network architecture based on software defined network |
| CN105430695A (en) * | 2015-11-30 | 2016-03-23 | 中国联合网络通信集团有限公司 | AP switching method |
| CN105554806A (en) * | 2016-01-25 | 2016-05-04 | 天津大学 | Mobility management method for protocol architecture of intelligent mobile terminal |
| WO2016127398A1 (en) * | 2015-02-13 | 2016-08-18 | 华为技术有限公司 | Access control apparatus, system and method |
| WO2016180313A1 (en) * | 2015-05-13 | 2016-11-17 | Huawei Technologies Co., Ltd. | Systems and methods for software programmable radio network |
| CN106162639A (en) * | 2015-11-25 | 2016-11-23 | 北京邮电大学 | SDN wireless network management platform based on Floodlight and authentication method |
| CN106330697A (en) * | 2015-07-03 | 2017-01-11 | 思锐科技股份有限公司 | Hybrid network spanning tree establishing method, backup method and control system thereof |
| CN106465439A (en) * | 2015-01-30 | 2017-02-22 | 华为技术有限公司 | Multi-stream aggregation method, apparatus and system |
| CN106686572A (en) * | 2016-12-20 | 2017-05-17 | 北京工业大学 | SDN-based mobility management method |
| CN106790117A (en) * | 2016-12-27 | 2017-05-31 | 南京邮电大学 | A kind of rapid authentication method that weighting text message safe transmission is realized based on SDN |
| CN106953742A (en) * | 2017-02-16 | 2017-07-14 | 广州海格通信集团股份有限公司 | A kind of wireless isomer network bandwidth safeguard method based on SDN |
| CN107113637A (en) * | 2015-01-12 | 2017-08-29 | 瑞典爱立信有限公司 | Method and module for managing packet in software defined network |
| CN107148061A (en) * | 2017-06-15 | 2017-09-08 | 重庆邮电大学 | A kind of LTE based on SDN and WLAN heterogeneous networks switching system and method |
| CN107454022A (en) * | 2017-09-28 | 2017-12-08 | 中国联合网络通信集团有限公司 | A kind of heterogeneous network and its data flow guidance method and interchanger |
| CN107534608A (en) * | 2015-06-17 | 2018-01-02 | 华为技术有限公司 | Method and apparatus for processing data stream within a wireless communication network |
| CN107925920A (en) * | 2015-09-23 | 2018-04-17 | 谷歌有限责任公司 | The system and method that the mobile management in network packet core system is defined for distributed software |
| CN108141756A (en) * | 2015-09-29 | 2018-06-08 | 瑞典爱立信有限公司 | Facilitate network slice management |
| CN105163353B (en) * | 2015-10-22 | 2019-04-26 | 中国科学技术大学 | HiNOC network seamless switching method based on SDN |
| CN112105069A (en) * | 2020-09-22 | 2020-12-18 | 云南电网有限责任公司电力科学研究院 | Internet edge computing wireless network switching method and system |
| US11044600B2 (en) | 2017-02-15 | 2021-06-22 | Huawei Technologies Co., Ltd. | Apparatus and method for performing local breakout service on use requipment |
| WO2022148244A1 (en) * | 2021-01-11 | 2022-07-14 | 华为技术有限公司 | Communication method, apparatus and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070008925A1 (en) * | 2005-07-07 | 2007-01-11 | Subrahmanyam Dravida | Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks |
| CN102209316A (en) * | 2005-07-07 | 2011-10-05 | 高通股份有限公司 | Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks |
| US20120307680A1 (en) * | 2011-05-31 | 2012-12-06 | Samsung Sds Co., Ltd. | Apparatus and method for controlling data transmission/reception path between server and mobile terminal in heterogeneous network environment |
| CN103379542A (en) * | 2012-04-18 | 2013-10-30 | 中兴通讯股份有限公司 | Method and system for obtaining offload business information applied to WLAN (wireless local access network) |
| CN103477684A (en) * | 2011-04-01 | 2013-12-25 | Lg电子株式会社 | Method and apparatus for transceiving data in radio access system supporting multi-radio access technology |
-
2014
- 2014-05-28 CN CN201410232378.4A patent/CN104023335A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070008925A1 (en) * | 2005-07-07 | 2007-01-11 | Subrahmanyam Dravida | Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks |
| CN102209316A (en) * | 2005-07-07 | 2011-10-05 | 高通股份有限公司 | Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks |
| CN103477684A (en) * | 2011-04-01 | 2013-12-25 | Lg电子株式会社 | Method and apparatus for transceiving data in radio access system supporting multi-radio access technology |
| US20120307680A1 (en) * | 2011-05-31 | 2012-12-06 | Samsung Sds Co., Ltd. | Apparatus and method for controlling data transmission/reception path between server and mobile terminal in heterogeneous network environment |
| CN103379542A (en) * | 2012-04-18 | 2013-10-30 | 中兴通讯股份有限公司 | Method and system for obtaining offload business information applied to WLAN (wireless local access network) |
Non-Patent Citations (2)
| Title |
|---|
| GYUSUN YI等: "Fully distributed handover based on SDN in heterogeneous wireless networks", 《PROCEEDING ICUIMC "14 PROCEEDINGS OF THE 8TH INTERNATIONAL CONFERENCE ON UBIQUITOUS INFORMATION MANAGEMENT AND COMMUNICATION》 * |
| LUHAN WANG等: "Open Wireless Network Architecture in Radio Access Network", 《2013 IEEE 78TH VEHICULAR TECHNOLOGY CONFERENCE (VTC FALL)》 * |
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| US10397188B2 (en) | 2015-02-13 | 2019-08-27 | Huawei Technologies Co., Ltd. | Access control apparatus, system, and method |
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| CN105072620A (en) * | 2015-07-08 | 2015-11-18 | 东南大学 | Network visualization-based resource sharing method among service providers |
| CN105072620B (en) * | 2015-07-08 | 2018-08-21 | 东南大学 | Resource share method between operator based on network virtualization |
| CN105072650A (en) * | 2015-07-15 | 2015-11-18 | 西安电子科技大学 | Communication system and communication method for realizing quick switching of mobile terminal between access points (APs) |
| CN107925920A (en) * | 2015-09-23 | 2018-04-17 | 谷歌有限责任公司 | The system and method that the mobile management in network packet core system is defined for distributed software |
| US11070477B2 (en) | 2015-09-23 | 2021-07-20 | Google Llc | Distributed software defined wireless packet core system |
| US10868762B2 (en) | 2015-09-23 | 2020-12-15 | Google Llc | Systems and methods for mobility management in a distributed software defined network packet core system |
| CN107925920B (en) * | 2015-09-23 | 2021-04-13 | 谷歌有限责任公司 | System and method for mobility management in a distributed software defined network packet core system |
| CN108141756A (en) * | 2015-09-29 | 2018-06-08 | 瑞典爱立信有限公司 | Facilitate network slice management |
| CN105163353B (en) * | 2015-10-22 | 2019-04-26 | 中国科学技术大学 | HiNOC network seamless switching method based on SDN |
| CN105262624B (en) * | 2015-10-29 | 2018-07-20 | 国网信息通信产业集团有限公司 | A kind of isomery power distribution communication network architecture based on software defined network |
| CN105262624A (en) * | 2015-10-29 | 2016-01-20 | 国网信息通信产业集团有限公司 | Heterogeneous distribution communication network architecture based on software defined network |
| CN106162639B (en) * | 2015-11-25 | 2019-04-12 | 北京邮电大学 | SDN wireless network management platform and authentication method based on Floodlight |
| CN106162639A (en) * | 2015-11-25 | 2016-11-23 | 北京邮电大学 | SDN wireless network management platform based on Floodlight and authentication method |
| CN105430695A (en) * | 2015-11-30 | 2016-03-23 | 中国联合网络通信集团有限公司 | AP switching method |
| CN105554806B (en) * | 2016-01-25 | 2019-03-08 | 天津大学 | Motion management method towards intelligent mobile terminal agreement framework |
| CN105554806A (en) * | 2016-01-25 | 2016-05-04 | 天津大学 | Mobility management method for protocol architecture of intelligent mobile terminal |
| CN106686572A (en) * | 2016-12-20 | 2017-05-17 | 北京工业大学 | SDN-based mobility management method |
| CN106686572B (en) * | 2016-12-20 | 2020-03-13 | 北京工业大学 | SDN-based mobility management method |
| CN106790117A (en) * | 2016-12-27 | 2017-05-31 | 南京邮电大学 | A kind of rapid authentication method that weighting text message safe transmission is realized based on SDN |
| US11044600B2 (en) | 2017-02-15 | 2021-06-22 | Huawei Technologies Co., Ltd. | Apparatus and method for performing local breakout service on use requipment |
| CN106953742A (en) * | 2017-02-16 | 2017-07-14 | 广州海格通信集团股份有限公司 | A kind of wireless isomer network bandwidth safeguard method based on SDN |
| CN107148061A (en) * | 2017-06-15 | 2017-09-08 | 重庆邮电大学 | A kind of LTE based on SDN and WLAN heterogeneous networks switching system and method |
| CN107454022A (en) * | 2017-09-28 | 2017-12-08 | 中国联合网络通信集团有限公司 | A kind of heterogeneous network and its data flow guidance method and interchanger |
| CN112105069A (en) * | 2020-09-22 | 2020-12-18 | 云南电网有限责任公司电力科学研究院 | Internet edge computing wireless network switching method and system |
| CN112105069B (en) * | 2020-09-22 | 2023-04-28 | 云南电网有限责任公司电力科学研究院 | Internet edge computing wireless network switching method and system |
| WO2022148244A1 (en) * | 2021-01-11 | 2022-07-14 | 华为技术有限公司 | Communication method, apparatus and system |
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