CN103595702A - Selection method and apparatus for content providing device - Google Patents

Selection method and apparatus for content providing device Download PDF

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Publication number
CN103595702A
CN103595702A CN201210295711.7A CN201210295711A CN103595702A CN 103595702 A CN103595702 A CN 103595702A CN 201210295711 A CN201210295711 A CN 201210295711A CN 103595702 A CN103595702 A CN 103595702A
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content
equipment
data
caching
network
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CN103595702B (en
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徐丽
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ZTE Corp
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ZTE Corp
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Abstract

The invention discloses a selection method and apparatus for a content providing device. The method comprises: receiving a service request sent by a terminal via a network side device; sending a request message for requesting data requested by the service request to a content buffer memory system and a content server via the network side device; and selecting, via the network side device, a device providing the above data according to the speed of the content buffer memory system and the content server in responce to the request message. By using the method and apparatus provided by the invention, the problem of how to select a data providing device from a content server and a content buffer memory system can be solved, and the quality of data service is improved.

Description

The choosing method of content providing and device
Technical field
The present invention relates to the communications field, in particular to a kind of choosing method and device of content providing.
Background technology
Along with the progress of network technology, data service is developed rapidly, and user can use the terminal equipments such as mobile phone, computer, TV to be linked in network, enjoys data, services.The data service that user downloads has following characteristics: 1) major part such as web page text, picture, video, file can buffer memory; 2) access content and have access focus (being that most of user accesses same fraction content); 3) the content update cycle such as file is longer; 4) probability that the interior a certain content (as TV play) of section is repeated access is sometime high.
In order to alleviate the pressure of far-end content server, reduce network application time delay end to end, promoting user experiences, in correlation technique, at network side, content caching (or content acceleration) system is set, can reduce the load of content server, content caching system can comprise one or more content caching servers.
Yet, when obtaining the data of terminal request, how in content server and content caching system, to choose the problem of the equipment that data are provided, effective solution is not yet proposed at present.
Summary of the invention
For how choosing the problem of the equipment that data are provided in content server and content caching system in correlation technique, the invention provides a kind of choosing method and device of content providing, at least to address the above problem.
According to an aspect of the present invention, provide a kind of choosing method of content providing, having comprised: the service request that network equipment receiving terminal sends; Described network equipment sends for asking the request message of the data that described service request asks to content caching system and content server; Described network equipment chooses according to described content caching system and described content server the equipment that described data are provided to the response speed of described request message.
Preferably, described network equipment chooses according to described content caching system and described content server the equipment that described data are provided to the response speed of described request message, comprising: described network equipment is determined in described content caching system and described content server the equipment to described request message response at first; Described network equipment choose described at first to the equipment of described request message response as the equipment that described data are provided.
Preferably, described network equipment is determined in described content caching system and described content server the equipment to described request message response at first, comprise: when described network equipment receives the response message of described request message, the network port that receives described response message by judgement determine described in the equipment to described request message response at first; Wherein, if receive for the first time the network port of described response message, be the network port corresponding to described content caching system, described content caching system is the equipment to described request message response at first, if receive for the first time the network port of described response message, be the network port that described content server is corresponding, described content server is the equipment to described request message response at first.
Preferably, described network equipment is determined in described content caching system and described content server at first to after the equipment of described request message response, also comprise: described network equipment discharges being connected between described network equipment and other equipment, wherein, described other equipment are the equipment except the described equipment of choosing in described content caching system and content server.
Preferably, described network equipment sends for asking the request message of the data that described service request asks to content caching system and content server, comprise: described network equipment determines that the business that described service request is asked is exchanges data PS business, and the content requests message in described service request meets the filter condition of default content caching; Described network equipment sends described request message to described content caching system and content server.
Preferably, after choosing the equipment that described data are provided, also comprise: described network equipment obtains described data from the described equipment of choosing, and send to described terminal the described data that get.
Preferably, described network equipment is wireless access network equipment or equipment of the core network.
Preferably, described content caching Account Dept is deployed in described network equipment side.
According to a further aspect in the invention, provide a kind of selecting device of content providing, be positioned at network equipment, having comprised: receiver module, the service request sending for receiving terminal; Sending module, for sending to content caching system and content server for asking the request message of the data that described service request asks; Choose module, for the response speed of described request message being chosen to the equipment that described data are provided according to described content caching system and described content server.
Preferably, described in choose module and comprise: the second determining unit, for determining described content caching system and the content server equipment to described request message response at first; Choose unit, for described in choosing at first to the equipment of described request message response as the equipment that described data are provided.
Preferably, also comprise: release module, for discharging being connected between described network equipment and other equipment, wherein, described other equipment are the equipment except the described equipment of choosing in described content caching system and content server.
Preferably, also comprise: acquisition module, for obtaining described data from the described equipment of choosing, and sends the described data that get to described terminal.
Preferably, described network equipment is wireless access network equipment or equipment of the core network.
Preferably, described sending module comprises: the first determining unit, and for determining that the business that described service request is asked is exchanges data PS business, and the content requests message in described service request meets the filter condition of default content caching; Transmitting element, for sending described request message to described content caching system and content server.
By the present invention, the service request that network equipment receiving terminal sends, to content caching system and content server, send the request message of the data of asking for requested service request, and the response speed of request message is chosen to the equipment that above-mentioned data are provided according to content caching system and content server, solved and how in content server and content caching system, to have chosen the problem of the equipment that data are provided, improved the quality of data service.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the flow chart of the choosing method of the content providing of the embodiment of the present invention;
Fig. 2 is the structured flowchart one according to the selecting device of the content providing of the embodiment of the present invention;
Fig. 3 is a kind of structured flowchart of choosing module according to the embodiment of the present invention;
Fig. 4 is the structured flowchart two according to the selecting device of the content providing of the embodiment of the present invention
Fig. 5 is the structured flowchart three according to the selecting device of the content providing of the embodiment of the present invention;
Fig. 6 is according to the structured flowchart of the sending module of the embodiment of the present invention;
Fig. 7 is according to the configuration diagram of the network of example two;
Fig. 8 is according to the flow chart of the choosing method of the content providing of example two;
Fig. 9 is according to the configuration diagram of the network of example three;
Figure 10 is according to the flow chart of the choosing method of the content providing of example three;
Figure 11 is according to the configuration diagram of the network of example four;
Figure 12 is according to the flow chart of the choosing method of the content providing of example four;
Figure 13 is according to the configuration diagram of the network of example five;
Figure 14 is according to the flow chart of the choosing method of the content providing of example five.
Embodiment
Hereinafter with reference to accompanying drawing, also describe the present invention in detail in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
In correlation technique, when obtaining the data of terminal request, how in content server and content caching system, to choose the problem of the equipment that data are provided, the embodiment of the present invention provides a kind of Choice of content providing, network equipment is as the intermediate NE between terminal and content server and content caching system, adopt Transparent Proxy mode (being that content caching system is not by user awareness), according to adaptively selected content providing such as the load of content server and content caching system, health status, obtain the data of terminal request.
According to the embodiment of the present invention, a kind of choosing method of content providing is provided, realize self adaptation and choose the equipment that the data that service request asks are provided.
Fig. 1 is according to the flow chart of the choosing method of the content providing of the embodiment of the present invention, and as shown in Figure 1, the method mainly comprises step S102-step S106.
Step S102, the service request that network equipment receiving terminal sends.
Step S104, network equipment sends the request message of the data of asking for requested service request to content caching system and content server.
Step S106, network equipment chooses according to content caching system and content server the equipment that above-mentioned data are provided to the response speed of request message.
Pass through the embodiment of the present invention, the service request that network equipment receiving terminal sends, to content caching system and content server, send the request message of the data of asking for requested service request, and the response speed of request message is chosen to the equipment that above-mentioned data are provided according to content caching system and content server, solved and how in content server and content caching system, to have chosen the problem of the equipment that data are provided, improved the quality of data service.
In embodiments of the present invention, network equipment can be the equipment in computer network, such as equipment such as reason devices, also can be wireless access network equipment or the equipment of the core network in mobile communications network, for example, radio network controller (Radio Network Controller, referred to as RNC), and evolution base station (eNodeB), Serving GPRS Support Node (Serving GPRS Supporting Node, referred to as SGSN), Gateway GPRS Support Node (Gateway GPRS Supporting Node, referred to as GGSN) etc.Content caching system can be deployed in network equipment side, for example, and in wireless access network, or in core net.At network side, dispose content caching system network, based on Transparent Proxy mode, in the situation that not reducing existing system stability, can effectively alleviate the pressure of content server, promote user and experience.
In an execution mode of the embodiment of the present invention, when network equipment sends the request message of the data of asking for requested service request to content caching system and content server, network equipment can determine that the business that this service request is asked is exchanges data (Packet Switch, referred to as PS) business, and the content requests message in service request meets the filter condition of default content caching, network equipment sends above-mentioned request message to content caching system and content server.
In actual applications, can be on network equipment configurating filtered mode.Network measurement equipment can obtain the content requests message in service request, the content requests message obtaining is carried out to filtration treatment according to pre-configured filter type, filter element and comprise APN (Access Point Name, referred to as APN), the target protocol type of content requests message, one or more element filtrations etc. in Target IP, destination port number.After filtration completes, if meet the condition that sends to content caching system, network equipment can be by the content requests message content caching system and the content server that obtain.
For example, when network equipment is RNC, can be on RNC configurating filtered mode.RNC carries out filtration treatment to the content requests message obtaining according to pre-configured filter type, after filtration completes, if meet the condition that sends to content caching system, RNC can carry out the content requests IP message obtaining being transmitted to content caching system after network address translation (Network Address Translation, NAT) or network address port conversion (Network Address Port Translation) processing.Meanwhile, RNC issues core net and content caching system by content requests message simultaneously.
In an execution mode of the embodiment of the present invention, when network equipment chooses to the response speed of request message the equipment that data are provided according to content caching system and content server, can determine in content caching system and content server the equipment to request message response at first, and choose at first the equipment of request message response as the equipment that data are provided.
Further, in an execution mode of the embodiment of the present invention, network equipment can be when the response message receiving request message, and the network port that receives response message by judgement is determined the equipment to described request message response at first.If receive for the first time the network port of response message, be the network port corresponding to content caching system, content caching system is the equipment at first request message being responded, if receive for the first time the network port of response message, be the network port that content server is corresponding, content server is the equipment at first request message being responded.
In another execution mode of the embodiment of the present invention, network equipment is determined in content caching system and content server at first to after the equipment of request message response, network equipment can releasing network side apparatus and being connected between the equipment except the equipment of choosing in content caching system and content server, for example, can send release connection request (RST) message to other equipment.
After choosing the equipment that data are provided, network equipment can obtain data from the equipment of choosing, and sends to terminal the data that get.In a preferred implementation of the embodiment of the present invention, when the network equipment obtains data from the equipment of choosing, if the equipment of choosing is content server, network equipment and content server connect, and directly from content server, obtain the data of request; If the equipment of choosing is content caching system, network equipment is from the data of content caching system acquisition request.
Network equipment is during from the data of content caching system acquisition request, content caching system can be according to the local data that whether are cached with request of content requests message judgement in request message, if so, the content of local cache is carried in content response message and sends to network equipment; If not, content caching system can be obtained above-mentioned data to content server request, and the data that get are sent to network equipment.
The in the situation that of comprising a plurality of content caching equipment in comprising a plurality of content caching systems or a content caching system, content caching system can also judge whether other guide caching system or content caching equipment preserve the data of request, if had, content caching system sends to network equipment by the information of the content caching system of the data of the request of preserving, network equipment is connected with the content caching system made of having preserved above-mentioned data, from this content caching system, obtains asked data.
A kind of selecting device of content providing is also provided according to the embodiment of the present invention, has been positioned at above-mentioned network equipment, the said method providing in order to realize the embodiment of the present invention.
Fig. 2 is the structured flowchart one according to the selecting device of the content providing of the embodiment of the present invention, and as shown in Figure 2, this device mainly comprises: receiver module 10, sending module 20 and choose module 30.Wherein, receiver module 10, the service request sending for receiving terminal; Sending module 20, for sending to content caching system and content server for asking the request message of the data that above-mentioned service request asks; Choose module 30, for the response speed of request message being chosen to the equipment that above-mentioned data are provided according to content caching system and content server.
Pass through the embodiment of the present invention, the service request being sent by receiver module 10 receiving terminals, sending module 20 sends the request message of the data of asking for requested service request to content caching system and content server, and according to content caching system and content server, the response speed of request message is chosen to the equipment that above-mentioned data are provided by choosing module 30, solved and how in content server and content caching system, to have chosen the problem of the equipment that data are provided, improved the quality of data service.
Fig. 3 is a kind of structured flowchart of choosing module according to the embodiment of the present invention, in execution mode as shown in Figure 3, choosing module 30 can comprise: the second determining unit 302, for determining content caching system and the content server equipment to request message response at first; Choose unit 304, for choosing at first the equipment of described request message response as the equipment that data are provided.
Fig. 4 is the structured flowchart two according to the selecting device of the content providing of the embodiment of the present invention, in device as shown in Figure 4, also comprise: release module 40, with choose module 30 and be coupled, for being connected between releasing network side apparatus and other equipment, wherein, other equipment are the equipment except the equipment of choosing in content caching system and content server.
Fig. 5 is the structured flowchart three according to the selecting device of the content providing of the embodiment of the present invention, in device as shown in Figure 5, also comprise: acquisition module 50, and choose module 30 and be coupled, for obtaining data from the equipment of choosing, and to terminal, send the data that get.In a preferred implementation of the embodiment of the present invention, when acquisition module 50 obtains data from the equipment of choosing, if the equipment of choosing is content server, network equipment and content server connect, and acquisition module 50 directly obtains the data of request from content server; If the equipment of choosing is content caching system, network equipment is connected with content caching system made, and acquisition module 50 is from the data of content caching system acquisition request.
Fig. 6 is according to the structured flowchart of the sending module of the embodiment of the present invention, as shown in Figure 6, sending module 20 can comprise: the first determining unit 202, for determining that the business that service request is asked is PS business, and the content requests message in service request meets the filter condition of default content caching; Transmitting element 204, for sending above-mentioned request message to content caching system and content server.
Below by instantiation, the said method of the embodiment of the present invention and device are described.
Example one
In example one, network equipment (being intermediate NE) comprising: control unit: be responsible for Resource allocation and smoothing, negotiation, control and content providing mutual.Processing unit: the sequence of the decompression of the decapsulation of responsible packet and encapsulation, variety of protocol data head and compression, transfer of data, packet and package control etc.Retransmission unit: be responsible for data retransmission to content providing and the data that receive from content providing.Above-mentioned three unit have been realized the function of the selecting device of the content providing that the above embodiment of the present invention provides jointly.
Retransmission unit receives service request, and this service request is transmitted to control unit.Control unit judges whether this service request is data service, if so, Coordination Treatment resource, and notifier processes unit, indication processing unit is constructed 2 parts of identical request messages simultaneously, and portion sends to content server, and portion sends to content caching system.When processing unit receives the notice of control unit, service request is processed, and 2 parts of service request messages of Reseal, portion sends to content server, another part sends to content caching system, then 2 parts of request messages are transmitted to retransmission unit, retransmission unit receives after request message, according to corresponding route respectively these 2 parts of message repeatings to content server and content caching system.
Retransmission unit receives the response to request message, response is submitted to control unit, control unit is from content server or content caching system according to network port judgement response, if first receive the response from content server, the message that notifier processes unit structure and content server connect, construct release connection request (RST) message to content caching system simultaneously, be given to retransmission unit and be transmitted to corresponding content equipment is provided, from content server, obtain the content that service request is asked; If first receive the response from content caching system, the message that notifier processes unit structure is connected with content caching system made, construct the RST message to content server simultaneously, being given to retransmission unit is transmitted to corresponding content and provides equipment, the content of asking from content caching system acquisition service request.
Example two
In this example, the network configuration of take is as shown in Figure 7 example, and the choosing method of the content providing of this example is described.
Fig. 8 is according to the flow chart of the choosing method of the content providing of example two, and as shown in Figure 8, the method mainly comprises that step S801 is to step S811.
Step S801, network element receives service request.
Step S802, retransmission unit is given to control unit by the service request receiving.Control unit judges whether the PktIntType in service request inner parameter gland is PS data service, determines, after processing policy, service request to be transmitted to processing unit processes.After processing unit processes is complete, send back to retransmission unit, retransmission unit is transmitted to service request the content server of content caching system and Internet Content Provider simultaneously.
Step S803, control unit judges according to the network port whether retransmission unit first receives the response of content server, if so, enters step S804, otherwise, enter step S805.
Step S804, if retransmission unit is first received the response of content server, to content caching system, send out release connection request (RST), and connect with content server, directly from content server, obtain the data that service request is asked, enter step S811.
Step S805, if retransmission unit is first received the response of content caching system, sends out RST to content server, and is connected with content caching system made.
Step S806, content caching system is searched the content that whether exists above-mentioned service request to ask in local cache according to service request, if so, enter step S807, otherwise, enter step S808.
Step S807, when content caching system exists foregoing, content caching system sends to retransmission unit by the content response message that comprises foregoing, enters step S811.
Step S808, when content caching server does not exist foregoing, content caching system is transmitted to content server by service request, obtains the content response message that comprises request content of content server response.
Step S809, content caching system checks that by the heading relevant field of content response message and the configuration file of content caching system etc. this content whether can buffer memory, if, enter step S810, no person, content caching system sends to retransmission unit by the content response message that comprises foregoing, enters step S811.
Step S810, if can buffer memory, be buffered in foregoing in content caching system, and performs step S807, and the content response message that comprises foregoing is sent to retransmission unit.
Step S811, retransmission unit is transmitted to terminal by foregoing response message.
Example three
In this example, the network configuration of take is as shown in Figure 9 example, and the choosing method of the content providing of this example is described.
Figure 10 is according to the flow chart of the choosing method of the content providing of example three, and as shown in figure 10, the method mainly comprises that step S1001 is to step S1014.
Step S1001, network element receives service request.
Step S1002, retransmission unit will be transmitted to control unit service request, control unit judges whether the PktIntType in service request inner parameter gland is PS data service, determine after processing policy, service request is given to processing unit processes, after processing unit processes is complete, send back to retransmission unit, retransmission unit is distinguished Forward-reques to the content server of content caching system 1, content caching system 2, content caching system 3 and Internet Content Provider simultaneously.
Step S1003, control unit judges according to the network port that receives response the response whether retransmission unit first receives content server, if, enter step S1004, otherwise, determine that retransmission unit first receives the response of content caching system, for example, the response of content caching system 1, enters step S1005.
Step S1004, retransmission unit is first received the response of content server, sends RST, and connect with content server to all the elements caching system, directly from content server, obtains the data content of request, enters step S1014.
Step S1005, retransmission unit is first received the response of content caching system 1, to content server and other guide caching system, sends out RST, and connects with content caching system 1.
Step S1006, content caching system 1 is searched the content that whether exists above-mentioned service request to ask in local cache according to service request, if so, enter step S1007, otherwise, enter step S1008.
Step S1007, when content caching system 1 exists foregoing, content caching system 1 sends to retransmission unit by the content response message that comprises foregoing, enters step S1014.
Step S1008, when content caching system 1 does not have buffer memory foregoing, whether the other guide caching system in content caching system 1 scope of examination caching system net is cached with foregoing, if, for example, content caching system 2 buffer memorys in content caching system network during foregoing, enter step S1009; If not, enter step S1011.
Step S1009, the content caching system 2 in content caching grid is cached with foregoing, and content caching system 1 returns to retransmission unit by relevant informations such as the IP of content caching system 2, port numbers.
Step S1010, retransmission unit and content caching system 2 connect, and from content caching system 2, obtain required request msg content, enter step S1014.
, there is not foregoing in step S1011, content caching system 1 is transmitted to content server by service request yet in other guide caching system, obtain the content response message that comprises request content of content server response.
Step S1012, content caching system 1 checks that by the heading relevant field of content response message and the configuration file of content caching system etc. foregoing whether can buffer memory, if so, enters step S1013; Otherwise content caching system sends to retransmission unit by the content response message that comprises foregoing, enters step S1014.
Step S1013, if can buffer memory, by described content caching, and sends to retransmission unit by the content response message that comprises foregoing.
Step S1014, retransmission unit forwards foregoing response message.
Example four
In this example, the network configuration of take is as shown in figure 11 example, and the choosing method of the content providing of this example is described.
Figure 12 is according to the flow chart of the choosing method of the content providing of example four, and as shown in figure 12, the method mainly comprises that step S1201 is to step S1212.
Step S1201, in RNC sidepiece administration content caching system, the content for buffer memory from content server.RNC receives service request.
Step S1202, RNC obtains content requests message, the PktIntType in judgement inner parameter gland is PS data service, and meet can content caching filter condition, RNC issues PS core net and content caching system by content requests message simultaneously.
In an execution mode of example of the present invention, above-mentioned steps S1202 can comprise:
Step S1202-1, configurating filtered mode on RNC.
Step S1202-2, RNC carries out filtration treatment to the content requests message obtaining according to pre-configured filter type, filter element and comprise APN (Access Point Name, referred to as APN), the target protocol type of content requests message, in Target IP, destination port number, one or more elements filter.
Step S1202-3, after filtration completes, if meet the condition that sends to content caching system, RNC can carry out the content requests IP message obtaining being transmitted to content caching system after network address translation (Network Address Translation, NAT) or network address port conversion (Network Address Port Translation) processing.Meanwhile, RNC issues PS core net by content requests message simultaneously.
Step S1203, RNC judges whether first to receive the response of core net, if so, enters step S1204; Otherwise, enter step S1205.
Step S1204, RNC and core net connect, and the data content of request directly obtains from core net.And RNC sends out RST to content caching system and finishes to carry out alternately with content caching system, the subsequent packet of RNC is only issued PS core net, no longer issues content caching system.After complete, enter step S1212.
In above-mentioned steps S1204, the data content of request directly obtains from core net, has guaranteed to add the stability that does not affect original system after content caching system.
Step S1205, if RNC first receives the response of content caching system, thinks that content caching system is normal, RNC pseudo-terminal (for example, mobile terminal) to this, connect and send out RST to PS core net, the subsequent packet of RNC is only issued content caching system, no longer issues PS core net.
Step S1206, content caching system is searched the content that whether exists content requests message to ask in local cache according to content requests message, if so, enter step S1207, otherwise, enter step S1208.
Step S1207, when content caching system exists foregoing, content caching system sends to RNC by the content response message that comprises foregoing, enters step S1212.
Step S1208, when content caching system does not exist foregoing, content caching system sends to content server by content requests message, obtains the content response message of the content of content server response.
Step S1209, content caching system checks that by the heading relevant field of content response message and the configuration file of content caching system etc. foregoing whether can buffer memory, if so, enters step S1210, otherwise, enter step S1211.
Step S1210, if can buffer memory, by foregoing buffer memory, and sends to RNC by the content response message that comprises foregoing, enters step S1212.
Step S1211, if cannot buffer memory, directly sends to RNC by the content response message that comprises foregoing, and delete foregoing.
Step S1212, RNC carries out foregoing response message to forward after NAT or NAPT processing.Terminal is obtained the content of request from content response message.
Example five
In this example, the network configuration of take is as shown in figure 13 example, and the choosing method of the content providing of this example is described.
Figure 14 is according to the flow chart of the choosing method of the content providing of example five, and as shown in figure 14, the method mainly comprises that step S1401 is to step S1412.
Step S1401, in CN sidepiece administration content caching system, the content for buffer memory from content server.CN receives service request.
Step S1402, CN obtains the content requests message of mobile terminal, PktIntType in judgement content requests message inner parameter gland is PS data service, and meet can content caching filter condition, CN issues content server and content caching system by content requests simultaneously.
Step S1403, CN judges whether first to receive the response of content server, if so, enters step S1404, otherwise, enter step S1405.
Step S1404, CN and content server connect, and the data content of CN request directly obtains from content server, and finish to carry out alternately with content caching system to content caching system transmission RST, the subsequent packet of CN is only issued content server, no longer issues content caching system.
In above-mentioned steps S1404, the data content of CN request directly obtains from content server, guarantees to add the stability that does not affect original system after content caching system.
Step S1405, if CN first receives the response of content caching system, thinks that content caching system is normal, and CN simulating mobile terminal sends RST to content server, and release is connected with content server.The subsequent packet of mobile terminal is only issued content caching system, no longer issues content server.
Step S1406, content caching system is searched the content that whether has request in local cache according to content requests message, if so, enter step S1407, otherwise, enter step S1408.
Step S1407, when content caching system exists foregoing, content caching system sends to CN by the content response message that comprises foregoing, enters step S1412.
Step S1408, when content caching system does not exist foregoing, content caching system to content server, is obtained the content response message of the content of content server response by content requests message repeating, enters step S1412.
Step S1409, content caching system checks that by the heading relevant field of content requests message and the configuration file of content caching system etc. foregoing whether can buffer memory, if so, enters step S1410, otherwise, enter step S1411.
Step S1410, if can buffer memory, by foregoing buffer memory, and sends to CN by the content response message that comprises foregoing, enters step S1412.
Step S1411, if cannot buffer memory, directly sends to CN by the content response message that comprises foregoing, and delete foregoing.
Step S1412, CN forwards foregoing response message.
From above description, can find out, the present invention has realized following technique effect: the embodiment of the present invention is in the mode of Transparent Proxy, by content caching system is set at network side, terminal can be according to the sequencing of the content server response of content caching system and content supplier, and the content providing of desired data is obtained in adaptive selection.Both realize network side data business tine caching function, effectively reduced the data traffic of network itself, promoted data service quality, reduced operation cost; Again can be at content caching system loading larger or abnormal in the situation that, guarantee that the stability of existing system is constant, as the network equipment of intermediate NE, still can obtain desired data from the content server of content supplier.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (14)

1. a choosing method for content providing, is characterized in that, comprising:
The service request that network equipment receiving terminal sends;
Described network equipment sends for asking the request message of the data that described service request asks to content caching system and content server;
Described network equipment chooses according to described content caching system and described content server the equipment that described data are provided to the response speed of described request message.
2. method according to claim 1, is characterized in that, described network equipment chooses according to described content caching system and described content server the equipment that described data are provided to the response speed of described request message, comprising:
Described network equipment is determined in described content caching system and described content server the equipment to described request message response at first;
Described network equipment choose described at first to the equipment of described request message response as the equipment that described data are provided.
3. method according to claim 2, is characterized in that, described network equipment is determined in described content caching system and described content server the equipment to described request message response at first, comprising:
When described network equipment receives the response message of described request message, the network port that receives described response message by judgement determine described in the equipment to described request message response at first;
Wherein, if receive for the first time the network port of described response message, be the network port corresponding to described content caching system, described content caching system is the equipment to described request message response at first, if receive for the first time the network port of described response message, be the network port that described content server is corresponding, described content server is the equipment to described request message response at first.
4. method according to claim 2, is characterized in that, described network equipment is determined in described content caching system and described content server at first to after the equipment of described request message response, also comprised:
Described network equipment discharges being connected between described network equipment and other equipment, and wherein, described other equipment are the equipment except the described equipment of choosing in described content caching system and content server.
5. according to the method described in any one in claim 1 to 4, it is characterized in that, described network equipment sends for asking the request message of the data that described service request asks to content caching system and content server, comprising:
Described network equipment determines that the business that described service request is asked is exchanges data PS business, and the content requests message in described service request meets the filter condition of default content caching;
Described network equipment sends described request message to described content caching system and content server.
6. according to the method described in any one in claim 1 to 4, it is characterized in that, after choosing the equipment that described data are provided, also comprise:
Described network equipment obtains described data from the described equipment of choosing, and sends to described terminal the described data that get.
7. according to the method described in any one in claim 1 to 4, it is characterized in that, described network equipment is wireless access network equipment or equipment of the core network.
8. method according to claim 6, is characterized in that, described content caching Account Dept is deployed in described network equipment side.
9. a selecting device for content providing, is positioned at network equipment, it is characterized in that, comprising:
Receiver module, the service request sending for receiving terminal;
Sending module, for sending to content caching system and content server for asking the request message of the data that described service request asks;
Choose module, for the response speed of described request message being chosen to the equipment that described data are provided according to described content caching system and described content server.
10. device according to claim 9, is characterized in that, described in choose module and comprise:
The second determining unit, for determining described content caching system and the content server equipment to described request message response at first;
Choose unit, for described in choosing at first to the equipment of described request message response as the equipment that described data are provided.
11. devices according to claim 10, is characterized in that, also comprise:
Release module, for discharging being connected between described network equipment and other equipment, wherein, described other equipment are the equipment except the described equipment of choosing in described content caching system and content server.
12. according to the device described in any one in claim 9 to 11, it is characterized in that, also comprises:
Acquisition module, for obtaining described data from the described equipment of choosing, and sends the described data that get to described terminal.
13. according to the device described in any one in claim 9 to 11, it is characterized in that, described network equipment is wireless access network equipment or equipment of the core network.
14. according to the device described in any one in claim 9 to 11, it is characterized in that, described sending module comprises:
The first determining unit, for determining that the business that described service request is asked is exchanges data PS business, and the content requests message in described service request meets the filter condition of default content caching;
Transmitting element, for sending described request message to described content caching system and content server.
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