CN105704708A - Mobile network content distribution method, device and system - Google Patents
Mobile network content distribution method, device and system Download PDFInfo
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- CN105704708A CN105704708A CN201410688065.XA CN201410688065A CN105704708A CN 105704708 A CN105704708 A CN 105704708A CN 201410688065 A CN201410688065 A CN 201410688065A CN 105704708 A CN105704708 A CN 105704708A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
Abstract
The present invention provides a mobile network content distribution method, a mobile network content distribution device and a system. The method applied to a mobile network side includes the following steps that: a mobile network receives the original access request of user equipment; the mobile network sends a DNS request to a DNS according to the original access request, so that the DNS forwards the DNS request to a DPI device, and the DPI device preprocesses the DNS request, and transmits the DNS request to a CDN global load balancing device, and the CDN global load balancing device redirects the DNS request and distributes a CDN edge server for the DNS request; the mobile network receives a DNS response fed back by the DNS; and the mobile network transmits an access request to the CDN edge server according to the IP address of the CDN edge server, so that the CDN edge server realizes the access of the user equipment according to the access request. According to the method, device and system of the invention, the CDN is deployed in the mobile network, and therefore, the response speed of the website visit of a user can be improved, and the bandwidth of the mobile network can be saved.
Description
Technical field
The present invention relates to communication technical field, particularly to the method for a kind of mobile network's content distribution, Apparatus and system。
Background technology
In order to keep 3-G (Generation Three mobile communication system) in the competitiveness of the communications field, provide the user speed faster, the lower and more personalized Mobile Communication Service of time delay, reduce the operation cost of operator simultaneously, third generation partner program (3rdGenerationPartnershipProject, referred to as 3GPP) standard working group is just being devoted to the research of evolved packet system (EvolvedPacketSystem, be called for short EPS)。Being illustrated in figure 1 the structural representation of evolved packet system EPS, whole EPS is divided into wireless access network and core net two parts。In the core network, contain home subscriber server (HomeSubscriberServer, referred to as HSS), Mobility Management Entity (MobilityManagementEntity, referred to as MME), Serving GPRS Support Node (ServingGPRSSupportNode, referred to as SGSN), policy charging rule function (PolicyandChargingRuleFunction, referred to as PCRF), gateway (ServingGateway, referred to as S-GW) and packet data gateway (PDNGateway, referred to as P-GW)。Functions is described below in detail:
Home subscriber server HSS, is the permanent storage place of user contracting data, is positioned at the home network of user's signing。
Mobility Management Entity MME, it it is the user contracting data storage place in current network, it is responsible for the tracking under Non-Access Stratum (NonAccessStratum, referred to as the NAS) signaling management of terminal to network, the safety verification function of terminal, the mobile management of terminal, user's idle pulley and paging management function and bearer management。
Serving GPRS Support Node SGSN, it is global system for mobile communications (GlobalSystemforMobileCommunications, referred to as GSM) strengthen data transfer rate GSM evolution (EnhancedDataRateforGSMEvolution, referred to as EDGE) wireless access network (GSMEDGERadioAccessNetwork, referred to as GERAN) and UMTS (UniversalMobileTelecommunicationsSystem, referred to as UMTS) land radio access web (UMTSTerrestrialRadioAccessNetwork, referred to as UTRAN) the business support point of user access core network network, functionally similar with Mobility Management Entity, it is responsible for the location updating of user, the functions such as paging management and bearer management。
Gateway S-GW, is the core net gateway that arrives wireless system, is responsible for terminal to the data buffer storage under the user plane bearer of core net, terminal idle mode, the function of network side initiating business request, Lawful Interception and packet routing and forwarding capability；Gateway be responsible for counting user terminal use wireless network situation, and produce terminal use wireless network ticket, send charging gateway to。
Packet data gateway P-GW, it it is the gateway of evolution system and this its exterior packet data network, it is connected on the Internet and packet data network, it is responsible for the functions such as Internet protocol (InternetProtocol, referred to as IP) the address distribution of terminal, billing function, packet packet filtering and policy control。
Gateway GPRS Support Node, is wireless access network GERAN and the gateway of land radio access web UTRAN user access core network network, functionally similar with packet data gateway。
Policy charging rule functional entity, is be responsible in evolution system providing the server that charging control, online diameter credit control, thresholding control and service quality (QualityofService, referred to as QoS) strategy aspect is regular。
4G wireless access network, it is be made up of evolution base station (EvolvedNodeB, referred to as eNodeB), the transmitting-receiving of its primary responsibility wireless signal, by air interface and terminal contact, the management Radio Resource of air interface, scheduling of resource and Access Control。
3G wireless access network, it is by base station (NodeB) and 3G radio network controller (RadioNetworkControllor, referred to as RNC) composition, the transmitting-receiving of its primary responsibility wireless signal, by air interface and terminal contact, the management Radio Resource of air interface, scheduling of resource and Access Control。
Above-mentioned Serving GPRS Support Node is the SGSN upgraded, the S4 interface between gateway can be supported, and and mobility management unit between adopt GPRS Tunnel Protocol version 2 (GPRSTunnelingProtocolversion2, referred to as GTPv2) carry out intercommunication。And for support 3G core net SGSN packet switch (PacketSwitching, referred to as PS) the territory network architecture and Fig. 1 different。Now SGSN and MME adopts gn interface to be connected, and intercommunication adopts GPRS Tunnel Protocol version 1 (GPRSTunnelingProtocolversion1, referred to as GTPv1)。SGSN can not be connected with gateway, is connected to Gateway GPRS Support Node (GatewayGPRSSupportNode, referred to as GGSN) by gn interface and is made directly packet data network access。
In field, broadband, content distributing network (ContentDeliveryNetwork, referred to as CDN) by different location cache contents, user's request being directed on nearest caching server and obtains content by technology such as load balancing, improve user and access the response speed of website。CDN, by the judgement of user's close and server load, provides service with the request that a kind of highly efficient mode is user。
In order to make full use of the advantage of CDN, Mobile Network Operator wishes to dispose in a mobile network CDN, is merged with mobile network by CDN, accelerates the content of mobile subscriber, improve response speed, saves bandwidth。In prior art, CDN can be deployed on Gateway GPRS Support Node (GGSN) or packet data gateway (P-GW), natural support。
But, prior art can't resolve the problem that CDN is deployed in all the other positions of mobile network。
Summary of the invention
It is an object of the invention to provide the method for a kind of mobile network's content distribution, Apparatus and system, CDN is disposed in a mobile network, CDN is merged with mobile network, accelerate the content of mobile subscriber, improve response speed, save bandwidth。
In order to achieve the above object, the embodiment of the present invention provides the method for a kind of mobile network's content distribution, is applied to mobile network side, and described method includes:
Described mobile network receives the former access request of subscriber equipment, carries the access-in point information supporting content distributing network CDN business for identifying described subscriber equipment in described former access request；
Described mobile network is according to described former access request, DNS request is sent to domain name system DNS, make described DNS that described DNS request is forwarded to deep-packet detection DPI equipment, after described DNS request being carried out pretreatment by described DPI equipment, described DNS request is sent to CDN GSLB equipment, described DNS request is redirected by described CDN GSLB equipment, for described DNS request distribution CD N Edge Server；
Described mobile network receives the DNS response of described DNS feedback, carries the IP address of CDN Edge Server in described DNS response；Wherein, described DNS response is the IP address generation of the CDN Edge Server being sent to described DNS by described DNS according to described CDN GSLB equipment；
Described mobile network sends access request according to the IP address of described CDN Edge Server to corresponding CDN Edge Server so that described CDN Edge Server realizes the access of described subscriber equipment according to described access request。
Wherein, described DNS request is carried the service content type of the access-in point information of described subscriber equipment, the IP address of described subscriber equipment and described former access request。
Wherein, described mobile network is connected with described CDN GSLB equipment after being sequentially connected with described DNS and described DPI equipment；
Described mobile network connects direct and described CDN Edge Server。
Wherein, when the equipment of the mobile network side being connected with described DNS is Serving GPRS Support Node, described mobile network also includes:
Evolution base station, radio network controller, attaching position register, Gateway GPRS Support Node and policy, billing planning function equipment。
Wherein, when the equipment of the mobile network side being connected with described DNS is gateway, described mobile network also includes:
Evolution base station, home subscriber server, Mobility Management Entity, packet data gateway and policy, billing planning function equipment。
The embodiment of the present invention also provides for the method for a kind of mobile network's content distribution, is applied to CDN side, and described CDN includes CDN GSLB equipment and CDN Edge Server, and described method includes:
Described CDN GSLB equipment receives the DNS request through DPI equipment pretreatment, described DNS request is redirected, for described DNS request distribution CD N Edge Server, wherein, described DNS request is to be sent to DNS according to the former access request of subscriber equipment by mobile network, and is forwarded to described DPI equipment by DNS；
The IP address of described CDN Edge Server is fed back to DNS by described CDN GSLB equipment so that described DNS generates DNS response according to the IP address of described CDN Edge Server and is sent to mobile network；
Described CDN Edge Server receives the access request that mobile network sends according to described DNS response, and judges whether the session data in described access request preserves in described CDN Edge Server this locality；
If the session data in described access request preserves in described CDN Edge Server this locality, then described CDN Edge Server allows subscriber equipment to access and provides corresponding with service for described subscriber equipment；If the session data in described access request does not preserve in described CDN Edge Server this locality, application server corresponding to former access request that then described CDN Edge Server sends to from described subscriber equipment to mobile network sends access request, described application server be that described subscriber equipment provides corresponding with service。
Wherein, described CDN GSLB equipment is connected with described mobile network after being sequentially connected with described DPI equipment and described DNS；
Described CDN Edge Server is directly connected with described mobile network。
Wherein, the equipment of the mobile network side being connected with described DNS is Serving GPRS Support Node or gateway。
The embodiment of the present invention also provides for the device of a kind of mobile network's content distribution, is applied to mobile network side, and described device includes:
First receiver module, for receiving the former access request of subscriber equipment, carries the access-in point information supporting content distributing network CDN business for identifying described subscriber equipment in described former access request；
First sending module, for according to described former access request, DNS request is sent to domain name system DNS, make described DNS that described DNS request is forwarded to deep-packet detection DPI equipment, after described DNS request being carried out pretreatment by described DPI equipment, described DNS request is sent to CDN GSLB equipment, described DNS request is redirected by described CDN GSLB equipment, for described DNS request distribution CD N Edge Server；
Second receiver module, for receiving the DNS response of described DNS feedback, carries the IP address of CDN Edge Server in described DNS response；Wherein, described DNS response is the IP address generation of the CDN Edge Server being sent to described DNS by described DNS according to described CDN GSLB equipment；
Second sending module, sends access request according to the IP address of described CDN Edge Server to corresponding CDN Edge Server for described mobile network so that described CDN Edge Server realizes the access of described subscriber equipment according to described access request。
Wherein, described DNS request is carried the service content type of the access-in point information of described subscriber equipment, the IP address of described subscriber equipment and described former access request。
Wherein, described mobile network is connected with described CDN GSLB equipment after being sequentially connected with described DNS and described DPI equipment；
Described mobile network connects direct and described CDN Edge Server。
The embodiment of the present invention also provides for the device of a kind of mobile network's content distribution, is applied to CDN side, and described CDN includes CDN GSLB equipment and CDN Edge Server, and described device includes:
3rd receiver module, the DNS request through DPI equipment pretreatment is received for described CDN GSLB equipment, described DNS request is redirected, for described DNS request distribution CD N Edge Server, wherein, described DNS request is to be sent to DNS according to the former access request of subscriber equipment by mobile network, and is forwarded to described DPI equipment by DNS；
Feedback module, feeds back to DNS for described CDN GSLB equipment by the IP address of described CDN Edge Server so that described DNS generates DNS response according to the IP address of described CDN Edge Server and is sent to mobile network；
Respond module, receives, for described CDN Edge Server, the access request that mobile network sends according to described DNS response, and judges whether the session data in described access request preserves in described CDN Edge Server this locality；
AM access module, if preserving in described CDN Edge Server this locality for the session data in described access request, then described CDN Edge Server allows subscriber equipment to access and provides corresponding with service for described subscriber equipment；If the session data in described access request does not preserve in described CDN Edge Server this locality, application server corresponding to former access request that then described CDN Edge Server sends to from described subscriber equipment to mobile network sends access request, described application server be that described subscriber equipment provides corresponding with service。
Wherein, described CDN GSLB equipment is connected with described mobile network after being sequentially connected with described DPI equipment and described DNS；
Described CDN Edge Server is directly connected with described mobile network。
Wherein, the equipment of the mobile network side being connected with described DNS is Serving GPRS Support Node or gateway。
The embodiment of the present invention also provides for a kind of system, the device that device distribute including mobile network's content of domain name system, deep packet inspection device, mobile network side as above and mobile network's content of content distributing network side as above are distributed。
The technique scheme of the present invention at least has the advantages that
The method of mobile network's content distribution of the embodiment of the present invention, in Apparatus and system, by domain name system and deep packet analyzing device, mobile network and content distributing network are connected, DNS request mobile network sent according to the former access request that subscriber equipment sends by domain name system and deep packet analyzing device carries out pretreatment, the DNS request of Satisfying Matching Conditions is forwarded to CDN GSLB function device, overall situation redirection is carried out again by CDN GSLB function device, for the CDN Edge Server that DNS request distribution is suitable, local scheduling and the service of the access request of subscriber equipment is realized by CDN Edge Server, improve user and access the response speed of website, save the bandwidth of mobile network。
Accompanying drawing explanation
Fig. 1 represents that in prior art, 3GPP accesses the structural representation of system access evolved packet system EPS；
Fig. 2 represents that the method for mobile network's content distribution of the embodiment of the present invention is applied to the basic step schematic diagram of mobile network side；
Fig. 3 represents that the CDN of the embodiment of the present invention is deployed in the network architecture schematic diagram after Serving GPRS Support Node；
Fig. 4 represents that the CDN of the embodiment of the present invention is deployed in the network architecture schematic diagram after gateway；
Fig. 5 represents that the method for mobile network's content distribution of the embodiment of the present invention is applied to the basic step schematic diagram of content distributing network side；
Fig. 6 represents that the method for mobile network's content distribution of the embodiment of the present invention is applied to the concrete of mobile network side and performs step schematic diagram；
Fig. 7 represents that the method for mobile network's content distribution of the embodiment of the present invention is applied to the concrete of content distributing network side and performs step schematic diagram；
Fig. 8 represents that the device of mobile network's distribution of the embodiment of the present invention is applied to the structural representation of mobile network side；
Fig. 9 represents that the device of mobile network's distribution of the embodiment of the present invention is applied to the structural representation of content distributing network side。
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, it is described in detail below in conjunction with the accompanying drawings and the specific embodiments。
The present invention is directed to the problem that content distributing network in prior art can not dispose all the other positions except Gateway GPRS Support Node and packet data gateway in a mobile network, a kind of method that mobile network's content is distributed is provided, Apparatus and system, by domain name system and deep packet analyzing device, mobile network and content distributing network are connected, DNS request mobile network sent according to the former access request that subscriber equipment sends by domain name system and deep packet analyzing device carries out pretreatment, the DNS request of Satisfying Matching Conditions is forwarded to CDN GSLB function device, overall situation redirection is carried out again by CDN GSLB function device, for the CDN Edge Server that DNS request distribution is suitable, local scheduling and the service of the access request of subscriber equipment is realized by CDN Edge Server, improve user and access the response speed of website, save the bandwidth of mobile network。
As in figure 2 it is shown, the method that the embodiment of the present invention provides the distribution of a kind of mobile network's content, being applied to mobile network side, described method includes:
Step 21, described mobile network receives the former access request of subscriber equipment, carries the access-in point information supporting content distributing network CDN business for identifying described subscriber equipment in described former access request；
Step 22, described mobile network is according to described former access request, DNS request is sent to domain name system DNS, make described DNS that described DNS request is forwarded to deep-packet detection DPI equipment, after described DNS request being carried out pretreatment by described DPI equipment, described DNS request is sent to CDN GSLB equipment, described DNS request is redirected by described CDN GSLB equipment, for described DNS request distribution CD N Edge Server；
Step 23, described mobile network receives the DNS response of described DNS feedback, carries the IP address of CDN Edge Server in described DNS response；Wherein, described DNS response is the IP address generation of the CDN Edge Server being sent to described DNS by described DNS according to described CDN GSLB equipment；
Step 24, described mobile network sends access request according to the IP address of described CDN Edge Server to corresponding CDN Edge Server so that described CDN Edge Server realizes the access of described subscriber equipment according to described access request。
In the above embodiment of the present invention, described DNS request is carried the service content type of the access-in point information APN of described subscriber equipment, the IP address of described subscriber equipment and described former access request。Service content type refers specifically to video type, audio types etc.。
Concrete, as shown in Figure 3, Figure 4, in the above embodiment of the present invention, described mobile network is connected with described CDN GSLB equipment after being sequentially connected with described DNS and described DPI equipment；
Described mobile network connects direct and described CDN Edge Server。
In the specific embodiment of the invention, when the equipment of the mobile network side being connected with described DNS is Serving GPRS Support Node, described mobile network also includes:
Evolution base station, radio network controller, attaching position register, Gateway GPRS Support Node and policy, billing planning function equipment。
Further, in the specific embodiment of the invention, when the equipment of the mobile network side being connected with described DNS is gateway, described mobile network also includes:
Evolution base station, home subscriber server, Mobility Management Entity, packet data gateway and policy, billing planning function equipment。
In the concrete application of the above embodiment of the present invention, DNS realizes DNS and redirects, DNS guiding mechanism refers to by domain name mapping flow process, DNS respond the IP address carrying CDN edge service node in (DNSResponse), it is achieved the overall scheduling of user's request；DPI equipment, it is achieved accurately identifying and resolving data traffic。After identifying message protocol or conversation type, support, according to the collocation strategy specified, the DNS request of Satisfying Matching Conditions is forwarded to CDN GSLB function device (CDNGSLB)。
Wherein, CDNGSLB is responsible for user is serviced the overall situation redirection of request, carries out the GSLB of media services according to scheduling strategy；CDN Edge Server, it is achieved the local scheduling of user and service (CDNGSLB and CDN Edge Server component content distribution network CDN)。
It should be noted that, in order to better realize the fusion of CDN and mobile network, time after CDN is deployed in Serving GPRS Support Node, CDN Edge Server also needs to realize the function of part gateway GPRS Support Node (GGSN) while realizing the function of itself；Time after CDN is deployed in gateway (S-GW), CDN Edge Server also needs to realize the function of part packet data gateway (P-GW) while realizing the function of itself。
In order to better realize above-mentioned purpose, as it is shown in figure 5, the method that the embodiment of the present invention also provides for the distribution of a kind of mobile network's content, being applied to CDN side, described CDN includes CDN GSLB equipment and CDN Edge Server, and described method includes:
Step 51, described CDN GSLB equipment receives the DNS request through DPI equipment pretreatment, described DNS request is redirected, for described DNS request distribution CD N Edge Server, wherein, described DNS request is to be sent to DNS according to the former access request of subscriber equipment by mobile network, and is forwarded to described DPI equipment by DNS；
Step 52, the IP address of described CDN Edge Server is fed back to DNS by described CDN GSLB equipment so that described DNS generates DNS response according to the IP address of described CDN Edge Server and is sent to mobile network；
Step 53, described CDN Edge Server receives the access request that mobile network sends according to described DNS response, and judges whether the session data in described access request preserves in described CDN Edge Server this locality；
Step 54, if the session data in described access request preserves in described CDN Edge Server this locality, then described CDN Edge Server allows subscriber equipment to access and provides corresponding with service for described subscriber equipment；If the session data in described access request does not preserve in described CDN Edge Server this locality, application server corresponding to former access request that then described CDN Edge Server sends to from described subscriber equipment to mobile network sends access request, described application server be that described subscriber equipment provides corresponding with service。
Holding continuous upper example, concrete, in the above embodiment of the present invention, described CDN GSLB equipment is connected with described mobile network after being sequentially connected with described DPI equipment and described DNS；
Described CDN Edge Server is directly connected with described mobile network；And the equipment of the mobile network side being connected with described DNS is Serving GPRS Support Node or gateway。
Below in conjunction with Fig. 3 to CDN being deployed under the network architecture after SGSN (Serving GPRS Support Node), mobile network's content distribution method concrete steps as shown in Figure 6:
Step 601, subscriber equipment (mobile 3G subscription) is normally surfed the Net, access-in point information APN (AccessPointName) on subscriber equipment band；
Step 602, the parameters such as SGSN sends DNS request to dns server, carries subscriber equipment APN in this DNS request, the IP address of subscriber equipment, the service content type of subscriber equipment access request；
Concrete, this APN is the signing APN that subscriber equipment is carried to network side, represents and supports that this mobile content accelerates business (namely supporting CDN business)；Service content type, for instance be video etc.。
Step 603, DNS request is forwarded to DPI equipment by dns server；
Step 604, DPI equipment identification message protocol, conversation type, according to the collocation strategy specified, it is video that such as DPI identifies, then the DNS request of Satisfying Matching Conditions is forwarded to GSLB equipment (CDNGSLB)；
Step 605, CDNGSLB is responsible for user is serviced the overall situation redirection of request, carries out the GSLB of media services according to scheduling strategy, returns to the IP address of CDN Edge Server to DNS；
Step 606, dns server returns DNS response to SGSN, carries the IP address of Edge Server in this DNS response；
Step 607, SGSN selects CDN Edge Server, is sent to access request (if identifying is video, then be conversation request) for DPI；
Step 608, CDN Edge Server, it is judged that session data this locality hit (preserving in this locality) of user's request, then service is directly provided, produces charging bill；If session data this locality of user's request is miss, continue to initiate a session request to the application server that the former access request of subscriber equipment is corresponding。
It should be noted that when being deployed in after SGSN for CDN, this network architecture supports the business of the mobile subscriber within 3G, i.e. 3G subscription, 2G user etc.。
Below in conjunction with Fig. 4 to CDN being deployed under the network architecture after S-GW (service node), mobile network's content distribution method concrete steps as shown in Figure 7:
Step 701, subscriber equipment (mobile 4G user) normally surf the Net, access-in point information APN (AccessPointName) on subscriber equipment band；
Step 702, the parameters such as S-GW sends DNS request to dns server, carries subscriber equipment APN in this DNS request, the IP address of subscriber equipment, the service content type of subscriber equipment access request；
Concrete, this APN is the signing APN that subscriber equipment is carried to network side, represents and supports that this mobile content accelerates business (namely supporting CDN business)；Service content type, for instance be video etc.。
Step 703, DNS request is forwarded to DPI equipment by dns server；
Step 704, DPI equipment identification message protocol, conversation type, according to the collocation strategy specified, it is video that such as DPI identifies, then the DNS request of Satisfying Matching Conditions is forwarded to GSLB equipment (CDNGSLB)；
Step 705, CDNGSLB is responsible for user is serviced the overall situation redirection of request, carries out the GSLB of media services according to scheduling strategy, returns to the IP address of CDN Edge Server to DNS；
Step 706, dns server returns DNS response to S-GW, carries the IP address of Edge Server in this DNS response；
Step 707, S-GW selects CDN Edge Server, is sent to access request (if identifying is video, then be conversation request) for DPI；
Step 708, CDN Edge Server, it is judged that session data this locality hit (preserving in this locality) of user's request, then service is directly provided, produces charging bill；If session data this locality of user's request is miss, continue to initiate a session request to the application server that the former access request of subscriber equipment is corresponding。
It should be noted that when being deployed in after S-GW for CDN, this network architecture supports the business of the mobile subscriber within 4G, i.e. 4G user, 3G subscription, 2G user etc.。
In order to better realize above-mentioned purpose, as shown in Figure 8, the embodiment of the present invention also provides for the device of a kind of mobile network's content distribution, is applied to mobile network side, and described device includes:
First receiver module 81, for receiving the former access request of subscriber equipment, carries the access-in point information supporting content distributing network CDN business for identifying described subscriber equipment in described former access request；
First sending module 82, for according to described former access request, DNS request is sent to domain name system DNS, make described DNS that described DNS request is forwarded to deep-packet detection DPI equipment, after described DNS request being carried out pretreatment by described DPI equipment, described DNS request is sent to CDN GSLB equipment, described DNS request is redirected by described CDN GSLB equipment, for described DNS request distribution CD N Edge Server；
Second receiver module 83, for receiving the DNS response of described DNS feedback, carries the IP address of CDN Edge Server in described DNS response；Wherein, described DNS response is the IP address generation of the CDN Edge Server being sent to described DNS by described DNS according to described CDN GSLB equipment；
Second sending module 84, sends access request according to the IP address of described CDN Edge Server to corresponding CDN Edge Server for described mobile network so that described CDN Edge Server realizes the access of described subscriber equipment according to described access request。
Concrete, in the above embodiment of the present invention, described DNS request is carried the service content type of the access-in point information of described subscriber equipment, the IP address of described subscriber equipment and described former access request。
Concrete, in the above embodiment of the present invention, described mobile network is connected with described CDN GSLB equipment after being sequentially connected with described DNS and described DPI equipment；
Described mobile network connects direct and described CDN Edge Server。
It should be noted that the device of mobile network's content distribution that the embodiment of the present invention provides is apply the device of method that mobile network's content of above-mentioned mobile network side is distributed, then all embodiments of said method and beneficial effect thereof are all suitable in this device。
In order to better realize above-mentioned purpose, as it is shown in figure 9, the embodiment of the present invention also provides for the device of a kind of mobile network's content distribution, being applied to CDN side, described CDN includes CDN GSLB equipment and CDN Edge Server, and described device includes:
3rd receiver module 91, the DNS request through DPI equipment pretreatment is received for described CDN GSLB equipment, described DNS request is redirected, for described DNS request distribution CD N Edge Server, wherein, described DNS request is to be sent to DNS according to the former access request of subscriber equipment by mobile network, and is forwarded to described DPI equipment by DNS；
Feedback module 92, feeds back to DNS for described CDN GSLB equipment by the IP address of described CDN Edge Server so that described DNS generates DNS response according to the IP address of described CDN Edge Server and is sent to mobile network；
Respond module 93, receives, for described CDN Edge Server, the access request that mobile network sends according to described DNS response, and judges whether the session data in described access request preserves in described CDN Edge Server this locality；
AM access module 94, if preserving in described CDN Edge Server this locality for the session data in described access request, then described CDN Edge Server allows subscriber equipment to access and provides corresponding with service for described subscriber equipment；If the session data in described access request does not preserve in described CDN Edge Server this locality, application server corresponding to former access request that then described CDN Edge Server sends to from described subscriber equipment to mobile network sends access request, described application server be that described subscriber equipment provides corresponding with service。
Concrete, in the above embodiment of the present invention, described CDN GSLB equipment is connected with described mobile network after being sequentially connected with described DPI equipment and described DNS；
Described CDN Edge Server is directly connected with described mobile network。
Concrete, in the above embodiment of the present invention, the equipment of the mobile network side being connected with described DNS is Serving GPRS Support Node or gateway。
It should be noted that the device of mobile network's content distribution that the embodiment of the present invention provides is the device of method of mobile network's content distribution of application foregoing distribution network side, then all embodiments of said method and beneficial effect thereof are all suitable in this device。
In order to better realize above-mentioned purpose, the embodiment of the present invention also provides for a kind of system, the device that device distribute including mobile network's content of domain name system DNS, deep packet inspection device DPI, mobile network side as above and mobile network's content of content distributing network side as above are distributed。
The system that the embodiment of the present invention provides, by disposing CDN in a mobile network, it is achieved CDN and the fusion of mobile network, improves user and accesses the response speed of website, saves the bandwidth of mobile network。
It should be noted that, the system that the embodiment of the present invention provides is the system of the device of the mobile network's content distribution comprising above-mentioned mobile network side and content distributing network side, then all embodiments of the device of the device of above-mentioned mobile network side and content distributing network side are all suitable in this system, and all can reach same or analogous beneficial effect。
The above is the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from principle of the present invention; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention。
Claims (15)
1. a method for mobile network's content distribution, is applied to mobile network side, it is characterised in that described method includes:
Described mobile network receives the former access request of subscriber equipment, carries the access-in point information supporting content distributing network CDN business for identifying described subscriber equipment in described former access request；
Described mobile network is according to described former access request, DNS request is sent to domain name system DNS, make described DNS that described DNS request is forwarded to deep-packet detection DPI equipment, after described DNS request being carried out pretreatment by described DPI equipment, described DNS request is sent to CDN GSLB equipment, described DNS request is redirected by described CDN GSLB equipment, for described DNS request distribution CD N Edge Server；
Described mobile network receives the DNS response of described DNS feedback, carries the IP address of CDN Edge Server in described DNS response；Wherein, described DNS response is the IP address generation of the CDN Edge Server being sent to described DNS by described DNS according to described CDN GSLB equipment；
Described mobile network sends access request according to the IP address of described CDN Edge Server to corresponding CDN Edge Server so that described CDN Edge Server realizes the access of described subscriber equipment according to described access request。
2. method according to claim 1, it is characterised in that carry the service content type of the access-in point information of described subscriber equipment, the IP address of described subscriber equipment and described former access request in described DNS request。
3. method according to claim 1, it is characterised in that described mobile network is connected with described CDN GSLB equipment after being sequentially connected with described DNS and described DPI equipment；
Described mobile network connects direct and described CDN Edge Server。
4. method according to claim 3, it is characterised in that when the equipment of the mobile network side being connected with described DNS is Serving GPRS Support Node, described mobile network also includes:
Evolution base station, radio network controller, attaching position register, Gateway GPRS Support Node and policy, billing planning function equipment。
5. method according to claim 3, it is characterised in that when the equipment of the mobile network side being connected with described DNS is gateway, described mobile network also includes:
Evolution base station, home subscriber server, Mobility Management Entity, packet data gateway and policy, billing planning function equipment。
6. a method for mobile network's content distribution, is applied to CDN side, it is characterised in that described CDN includes CDN GSLB equipment and CDN Edge Server, and described method includes:
Described CDN GSLB equipment receives the DNS request through DPI equipment pretreatment, described DNS request is redirected, for described DNS request distribution CD N Edge Server, wherein, described DNS request is to be sent to DNS according to the former access request of subscriber equipment by mobile network, and is forwarded to described DPI equipment by DNS；
The IP address of described CDN Edge Server is fed back to DNS by described CDN GSLB equipment so that described DNS generates DNS response according to the IP address of described CDN Edge Server and is sent to mobile network；
Described CDN Edge Server receives the access request that mobile network sends according to described DNS response, and judges whether the session data in described access request preserves in described CDN Edge Server this locality；
If the session data in described access request preserves in described CDN Edge Server this locality, then described CDN Edge Server allows subscriber equipment to access and provides corresponding with service for described subscriber equipment；If the session data in described access request does not preserve in described CDN Edge Server this locality, application server corresponding to former access request that then described CDN Edge Server sends to from described subscriber equipment to mobile network sends access request, described application server be that described subscriber equipment provides corresponding with service。
7. method according to claim 6, it is characterised in that described CDN GSLB equipment is connected with described mobile network after being sequentially connected with described DPI equipment and described DNS；
Described CDN Edge Server is directly connected with described mobile network。
8. method according to claim 7, it is characterised in that the equipment of the mobile network side being connected with described DNS is Serving GPRS Support Node or gateway。
9. a device for mobile network's content distribution, is applied to mobile network side, it is characterised in that described device includes:
First receiver module, for receiving the former access request of subscriber equipment, carries the access-in point information supporting content distributing network CDN business for identifying described subscriber equipment in described former access request；
First sending module, for according to described former access request, DNS request is sent to domain name system DNS, make described DNS that described DNS request is forwarded to deep-packet detection DPI equipment, after described DNS request being carried out pretreatment by described DPI equipment, described DNS request is sent to CDN GSLB equipment, described DNS request is redirected by described CDN GSLB equipment, for described DNS request distribution CD N Edge Server；
Second receiver module, for receiving the DNS response of described DNS feedback, carries the IP address of CDN Edge Server in described DNS response；Wherein, described DNS response is the IP address generation of the CDN Edge Server being sent to described DNS by described DNS according to described CDN GSLB equipment；
Second sending module, sends access request according to the IP address of described CDN Edge Server to corresponding CDN Edge Server for described mobile network so that described CDN Edge Server realizes the access of described subscriber equipment according to described access request。
10. device according to claim 9, it is characterised in that carry the service content type of the access-in point information of described subscriber equipment, the IP address of described subscriber equipment and described former access request in described DNS request。
11. device according to claim 9, it is characterised in that described mobile network is connected with described CDN GSLB equipment after being sequentially connected with described DNS and described DPI equipment；
Described mobile network connects direct and described CDN Edge Server。
12. a device for mobile network's content distribution, it is applied to CDN side, it is characterised in that described CDN includes CDN GSLB equipment and CDN Edge Server, and described device includes:
3rd receiver module, the DNS request through DPI equipment pretreatment is received for described CDN GSLB equipment, described DNS request is redirected, for described DNS request distribution CD N Edge Server, wherein, described DNS request is to be sent to DNS according to the former access request of subscriber equipment by mobile network, and is forwarded to described DPI equipment by DNS；
Feedback module, feeds back to DNS for described CDN GSLB equipment by the IP address of described CDN Edge Server so that described DNS generates DNS response according to the IP address of described CDN Edge Server and is sent to mobile network；
Respond module, receives, for described CDN Edge Server, the access request that mobile network sends according to described DNS response, and judges whether the session data in described access request preserves in described CDN Edge Server this locality；
AM access module, if preserving in described CDN Edge Server this locality for the session data in described access request, then described CDN Edge Server allows subscriber equipment to access and provides corresponding with service for described subscriber equipment；If the session data in described access request does not preserve in described CDN Edge Server this locality, application server corresponding to former access request that then described CDN Edge Server sends to from described subscriber equipment to mobile network sends access request, described application server be that described subscriber equipment provides corresponding with service。
13. device according to claim 12, it is characterised in that described CDN GSLB equipment is connected with described mobile network after being sequentially connected with described DPI equipment and described DNS；
Described CDN Edge Server is directly connected with described mobile network。
14. device according to claim 13, it is characterised in that the equipment of the mobile network side being connected with described DNS is Serving GPRS Support Node or gateway。
15. a system, it is characterized in that, including the device of domain name system, deep packet inspection device, the device of mobile network's content distribution of mobile network side as described in any one of claim 9 to 11 and mobile network's content distribution of content distributing network side as described in any one of claim 12 to 14。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410688065.XA CN105704708A (en) | 2014-11-25 | 2014-11-25 | Mobile network content distribution method, device and system |
| PCT/CN2015/083402 WO2016082553A1 (en) | 2014-11-25 | 2015-07-06 | Method, device and system for distributing mobile network content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410688065.XA CN105704708A (en) | 2014-11-25 | 2014-11-25 | Mobile network content distribution method, device and system |
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| CN105704708A true CN105704708A (en) | 2016-06-22 |
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| CN201410688065.XA Withdrawn CN105704708A (en) | 2014-11-25 | 2014-11-25 | Mobile network content distribution method, device and system |
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| WO (1) | WO2016082553A1 (en) |
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| WO2016082553A1 (en) | 2016-06-02 |
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