CN105791229A - Content transmitting and providing methods and devices - Google Patents
Content transmitting and providing methods and devices Download PDFInfo
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- CN105791229A CN105791229A CN201410812306.7A CN201410812306A CN105791229A CN 105791229 A CN105791229 A CN 105791229A CN 201410812306 A CN201410812306 A CN 201410812306A CN 105791229 A CN105791229 A CN 105791229A
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Abstract
The invention provides content transmitting and providing methods and devices. The content transmitting method comprises the following steps that: a first wireless access point receives a request message for acquiring predetermined content sent by a terminal, wherein the request message includes information of a source address of the predetermined content; the first wireless access point determines a second wireless access point in which the predetermined content is stored according to the request message, wherein the source address of the predetermined content is different from an address of the second wireless access point; the first wireless access point acquires the predetermined content from the determined second wireless access point; and the first wireless access point transmits the predetermined content to the terminal. Through adoption of the content transmitting and providing methods and devices, the problems of low communication efficiency and high network transmission cost when the terminal accesses content in a network in the prior art are solved, and the effects of increasing the communication efficiency and lowering the network transmission cost are achieved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of content delivery method, provide method and device.
Background technology
In the related, the Main Function of access point is to provide wireless access (such as wifi accesses) for terminal, access point is connected to Packet Data Network (PacketDataNetwork, referred to as PDN), so that terminal with other terminal communication being connected to PDN, or can make terminal can access the content on PDN.Most common of which PDN is the Internet Internet such as.Such as, access point can be connected to local gateway, is connected to backbone network (optical-fiber network such as China Telecom, CHINAUNICOM's construction) again through local gateway, then communicates with other terminal or server of being connected to backbone network.Its connection diagram is referred to the first connection diagram that Fig. 1, Fig. 1 are the terminal in correlation technique and network.
Certainly, access point can also be the base station in mobile communications network.Fig. 2 is the second connection diagram of the terminal in correlation technique and network, as shown in Figure 2, base station is connected to core net (such as, evolution block core net (EvolvedPacketCore, referred to as EPC)), core net is connected to PDN, thus terminal can pass through core net and other terminal communication in mobile communications network, or communicates with other terminal being connected to PDN or server.Such as, terminal 1 can be accessed the video server (such as the server of Yoqoo management) being connected to Internet and obtain video content by such mode.In the present invention, access point is not limit with the connected mode of PDN, it is possible to be Fig. 1 or Fig. 2 or alternate manner.
Although aforesaid way can guarantee that communication, but inefficient.Finding through research, people are higher by the probability of different terminal access identical contents, for instance people pass through video or the picture etc. that on mobile phone access Internet, clicking rate is the highest；Further, this situation also usually occurs in the same area.Such as in same community (or same building), people like sharing the significant content seen, therefore the people of this community will the same content of repeated accesses, for instance the same video on Yoqoo.If the people of this community use different terminals, access identical content by backbone network every time, not only time delay can be caused bigger due to transmission path length, also can increase the pressure of backbone network, and make content supplier's (such as Yoqoo) pay more network transmission cost to the operator (such as China Telecom or CHINAUNICOM) of backbone network.
During for content in the terminal access network existed in correlation technique, communication efficiency is low, and problem that network transmission cost is high not yet proposes effective solution at present.
Summary of the invention
The invention provides a kind of content delivery method, offer method and device, during at least to solve the content in the terminal access network existed in correlation technique, communication efficiency is low, the problem that network transmission cost is high.
According to an aspect of the invention, it is provided a kind of content delivery method, including: the first WAP receives the request message for obtaining predetermined content that terminal sends, and wherein, described request message includes the information of the source address of described predetermined content；According to described request message, described first WAP determines that storage has the second WAP of described predetermined content, wherein, the source address of described predetermined content is different with the address of described second WAP；Described first WAP obtains described predetermined content from described second WAP determined；Described predetermined content is sent to described terminal by described first WAP.
Further, the quantity of described second WAP is one or more, and in the plurality of second WAP, storage has complete described predetermined content or the described predetermined content of part respectively.
Further, the address information of described first WAP and described second WAP is distributed by same gateway.
Further, according to described request message, described first WAP determines that storage has the second WAP of described predetermined content to include: described first WAP obtains the predetermined information of at least one described second WAP, wherein, described predetermined information includes the source address information that the address information of the second WAP is corresponding with the content of storage in described second WAP；The source address information corresponding with the content that described second WAP stores that described first WAP includes with described predetermined information by contrasting described request message determines that storage has the second WAP of described predetermined content.
Further, described first WAP obtains described predetermined content from described second WAP determined and includes: described first WAP accesses described second WAP by storing the address information of the second WAP having described predetermined content；Described first WAP obtains described predetermined content by the source address information that the described predetermined content of storage in described second WAP is corresponding.
Further, the address information that described first WAP obtains described second WAP includes: when described first WAP and described second WAP are connected to same network management center, and described first WAP obtains the address information of described second WAP by described network management center.
Further, described first WAP is before obtaining the predetermined information of described second WAP, also include: the first WAP verifies whether the address information of described second WAP is effective address information, including: described first WAP is attempted connecting described second WAP；Described first WAP judges whether to obtain the mandate of described second WAP；Described first WAP is when judged result is for being, it is determined that the address information of described second WAP is effective address information.
Further, described first WAP obtain source address information corresponding to content with storage in described second WAP include in the following manner at least one: described first WAP obtains the source address information corresponding with the content that stores in described second WAP by cache information server, wherein, in described cache information server storage have following information at least one: the correspondence relationship information of the source address information of content of storage, described source address information and described second WAP in described second WAP；Described first WAP obtains the source address information corresponding with the content of storage in described second WAP by receiving the mode of the source address information corresponding with the content of storage in described second WAP that described second WAP periodically sends；Described first WAP is by periodically asking the mode of the source address information corresponding with the content of storage in described second WAP to determine the source address information corresponding with the content of storage in described second WAP to described second WAP.
Further, described cache information server includes described first WAP and/or described second WAP.
Further, described first WAP before obtaining described predetermined content from described second WAP determined, also include: described first WAP judges that whether the connection with described second WAP is through backbone network, and when judged result is no, from described second WAP determined, obtain described predetermined content.
Further, when the quantity of described second WAP is multiple, and when in the plurality of second WAP, storage has the described predetermined content of part respectively, described first WAP obtains described predetermined content from described second WAP determined and includes: described first WAP determines multiple described second WAP constituting complete described predetermined content；Described first WAP is predetermined content described in difference fetching portion from the plurality of second WAP determined；Described predetermined content is sent to described terminal and includes by described first WAP: the described predetermined content of part obtained respectively from the plurality of second WAP determined is sent to described terminal according to the order of described predetermined content by described first WAP successively.
Further, when described first WAP described predetermined content is sent to described terminal failed when, also include: described first WAP determines the source address information of described predetermined content；Described first WAP obtains described predetermined content by accessing described source address information；The described predetermined content obtained is sent to described terminal by described first WAP.
Further, described first WAP and described second WAP are provided with identical application plug-in and/or certificate；And/or, set up the secure tunnel having for carrying out data transmission between described first WAP and described second WAP.
According to a further aspect in the invention, provide a kind of content providing, including: the second WAP receives the request message for acquisition request predetermined content that the first WAP sends, wherein, described request message includes the source address information of described predetermined content, the source address information of described predetermined content is different with the address information of described second WAP, and in described second WAP, storage has complete described predetermined content and/or the described predetermined content of part；Described second WAP will be stored in the described predetermined content in described second WAP according to described request message and is supplied to described first WAP.
Further, described second WAP is before receiving the request message for acquisition request predetermined content that described first WAP sends, also include: described second WAP stores described content according to the relevant information of content, wherein, the relevant information of described content includes at least one of: the size of described content, the attribute of described content, described content form, access the number of times of described content, described content issuing time, comment on the number of times of described content；Described second WAP determines the priority of described content according to the relevant information of described content；Described content is updated by described second WAP according to the priority of described content.
Further, described content providing also includes at least one of: the address information of described first WAP and described second WAP is distributed by same gateway；Described first WAP and described second WAP are provided with identical application plug-in and/or certificate；The secure tunnel having for carrying out data transmission is set up between described first WAP and described second WAP.
According to a further aspect in the invention, provide a kind of content sending apparatus, described content sending apparatus is applied in the first WAP, including: the first receiver module, for receiving the request message for obtaining predetermined content that terminal sends, wherein, described request message includes the information of the source address of described predetermined content；First determines module, and for determining that storage has the second WAP of described predetermined content according to described solicited message, wherein, the source address of described predetermined content is different with the address of described second WAP；Acquisition module, for obtaining described predetermined content from described second WAP determined；Sending module, for being sent to described terminal by described predetermined content.
Further, described first determines that module includes: acquiring unit, for obtaining the predetermined information of at least one described second WAP, wherein, described predetermined information includes the source address information that the address information of the second WAP is corresponding with the content of storage in described second WAP；Determine unit, determine that storage has the second WAP of described predetermined content for the source address information corresponding with the content that described second WAP stores included with described predetermined information by contrasting described request message.
Further, described acquisition module includes: access unit, for address information described second WAP of access by storing the second WAP having described predetermined content；Acquiring unit, obtains described predetermined content for the source address information corresponding by the described predetermined content of storage in described second WAP.
Whether further, described content sending apparatus also includes: authentication unit, be effective address information for verifying the address information of described second WAP, including: attempt connecting described second WAP；Judge whether to obtain the mandate of described second WAP；When judged result is for being, it is determined that the address information of described second WAP is effective address information.
Further, described content sending apparatus also includes: judge module, for judging that whether connection with described second WAP is through backbone network, and when judged result is no, from described second WAP determined, obtain described predetermined content.
According to a further aspect in the invention, provide a kind of content providing device, described content providing device is applied in the second WAP, including: the second receiver module, for receiving the request message for acquisition request predetermined content that the first WAP sends, wherein, described request message includes the source address information of described predetermined content, the source address information of described predetermined content is different with the address information of described second WAP, and in described second WAP, storage has complete described predetermined content and/or the described predetermined content of part；Module being provided, being supplied to described first WAP for will be stored in the described predetermined content in described second WAP according to described solicited message.
Further, described content providing device also includes: memory module, described content is stored for the relevant information according to content, wherein, the relevant information of described content includes at least one of: the size of described content, the attribute of described content, described content form, access the number of times of described content, described content issuing time, comment on the number of times of described content；Second determines module, for determining the priority of described content according to the relevant information of described content；More new module, is updated described content for the priority according to described content.
By the present invention, adopting the first WAP to receive the request message for obtaining predetermined content that terminal sends, wherein, described request message includes the information of the source address of described predetermined content；According to described request message, described first WAP determines that storage has the second WAP of described predetermined content, wherein, the source address of described predetermined content is different with the address of described second WAP；Described first WAP obtains described predetermined content from described second WAP determined；Described predetermined content is sent to described terminal by described first WAP, solve communication efficiency during the content in the terminal access network existed in correlation technique low, the problem that network transmission cost is high, and then reached raising communication efficiency, reduce the effect of network transmission cost.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the first connection diagram of the terminal in correlation technique and network；
Fig. 2 is the second connection diagram of the terminal in correlation technique and network；
Fig. 3 is the flow chart of content delivery method according to embodiments of the present invention；
Fig. 4 is the structured flowchart obtaining the second WAP address information according to embodiments of the present invention；
Fig. 5 is the flow chart of content providing according to embodiments of the present invention；
Fig. 6 is the structured flowchart of content sending apparatus according to embodiments of the present invention；
Fig. 7 first determines the structured flowchart of module 64 in content sending apparatus according to embodiments of the present invention；
Fig. 8 is the structured flowchart of acquisition module 66 in content sending apparatus according to embodiments of the present invention；
Fig. 9 first determines the preferred structure block diagram of module 64 in content sending apparatus according to embodiments of the present invention；
Figure 10 is the preferred structure block diagram of content sending apparatus according to embodiments of the present invention；
Figure 11 is the structured flowchart of content providing device according to embodiments of the present invention；
Figure 12 is the preferred structure block diagram of content providing device according to embodiments of the present invention.
Detailed description of the invention
Below with reference to accompanying drawing and describe the present invention in detail in conjunction with the embodiments.It should be noted that when not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.
Providing a kind of content delivery method in the present embodiment, Fig. 3 is the flow chart of content delivery method according to embodiments of the present invention, as it is shown on figure 3, this flow process comprises the steps:
Step S302, the first WAP receives the request message for obtaining predetermined content that terminal sends, and wherein, this request message includes the information of the source address of predetermined content；
Step S304, according to above-mentioned request message, the first WAP determines that storage has the second WAP of above-mentioned predetermined content, wherein, the source address of above-mentioned predetermined content is different with the address of the second WAP；
Step S306, the first WAP obtains above-mentioned predetermined content from the second WAP determined；
Step S308, predetermined content is sent to terminal by the first WAP.
Pass through above-mentioned steps, the first WAP is adopted to obtain the content that terminal is requested from the second WAP, and, the source address of the content that terminal needs obtain is different from the address of the second WAP, achieve and memory space is set in the access point for storing content, and between different access points, can mutually access the content of storage, thus avoiding identical content to repeat transmission over the backbone, solve communication efficiency during the content in the terminal access network existed in correlation technique low, the problem that network transmission cost is high, and then reached raising communication efficiency, reduce the effect of network transmission cost.
It is that base station illustrates for access point below: terminal 2 have accessed the video content of " China on the tip of the tongue " by base station 2, and this content is just stored in the memory space on base station 2 by base station 2；If terminal 1 again sends the access request to this video content to base station 1, base station 1 then can access base station 2 to obtain this video content and to be sent to terminal 1.Wherein, base station 1 also needs to know the address (address information corresponding in IP address or mobile communication system) of base station 2 and the source address of the stored video content in base station 2；So, when terminal 1 sends the access request to this video content to base station 1, this request can include the source address of this video content, according to this source address, base station 1 just judges that this video content has been stored on base station 2, just directly access this video content of IP address acquisition corresponding to base station 2 and be sent to terminal 1, obtaining this video content without accessing this source address.
By above-described embodiment; base station is the function possessing cache contents (including above-mentioned predetermined content); this makes it possible to the locally stored space of adaptive extension; when the business demand in certain region increases; manager would generally in the more base station of this regional deployment, and owing to carrying memory space on base station, and this memory space can be shared by other base station; thus just can naturally enough extend the global storage space of this locality, without carrying out dilatation for special server again.
The address of the present invention can be IP address or other is for the path (such as URL (UniformResourceLocation, referred to as URL), domain name etc.) of access points, illustrates for IP address here.Certainly this address information can also is that address itself, carries the information of address or can determine the out of Memory of address according to this address information, for instance the mark of address or numbering etc..Embodiments of the invention are to may apply in the system of more than one the first WAP or the second WAP.
Above-mentioned mentioned terminal, can be mobile phone (or mobile phone), or other can send or receive the equipment of wireless signal, including personal digital assistant (PersonalDigitalAssistant, referred to as PDA), wireless modem, radio communication device, hand-held device, laptop computer, wireless phone, wireless local loop (WirelessLocalLoop, referred to as WLL) stand, movable signal can be converted to the customer terminal equipment (CustomerPremiseEquipment of wifi signal, referred to as CPE) or Mifi, intelligent appliance, or other obstructed remarkable operation just spontaneous equipment etc. communicated with mobile communications network of energy.The form of the first WAP and the second WAP is not limit, can be base station (BaseStation, referred to as BS), macro base station (MacroBaseStation), micro-base station (PicoBaseStation), node NodeB, enhanced base station (EvolvedNodeB, referred to as ENB), family's enhanced base station (FemtoeNB or HENB), access point (AccessPoint, referred to as AP), wireless router, relay station, Remote Radio Unit (RemoteRadioUnit, referred to as RRU), remote radio head (RemoteRadioHead, referred to as RRH) etc..When terminal is not CPE or Mifi, access point can also is that CPE or Mifi.Can be that the connected mode between wireless connections, access point and core net or gateway or miscellaneous equipment is not limit between access point and terminal, it is possible to be wired connection or radio connection；Wherein, wired connection can use coaxially connected, optical fiber connection etc.；nullWireless connections can use WCDMA to access (WidebandCodeDivisionMultipleAccess，Referred to as WCDMA)、CDMA (CodeDivisionMultipleAccess，Referred to as CDMA) 2000、Micro-wave access to global intercommunication (WorldwideInteroperabilityforMicrowaveAccess，Referred to as Wimax)、Long Term Evolution (LongTermEvolution，Referred to as LTE)、Senior Long Term Evolution LTE-Advanced、Wifi wireless transmission protocol (includes IEEE802.11 serial protocols，Such as 802.11a/b/g/n/ac/ad) etc..
The content that in second WAP, the content of storage can be complete can also be partial content, such as when certain video is several G or tens G, need to take bigger memory headroom, in that case, this video can be stored separately, in different access points, namely store a part for this video respectively.In an optional embodiment, the quantity of above-mentioned second WAP can be one or more, and, multiple second WAPs can store complete predetermined content or part predetermined content respectively, thus alleviating the storage pressure of access point.
In a preferred embodiment, the address information of above-mentioned first WAP and the second WAP can be distributed by same gateway, thus ensure that two WAPs are in same LAN, (the such as gateway shown in Fig. 1 is distributed by same gateway in their IP address, or the gateway that the core net shown in Fig. 2 includes, such as packet data network gateway (PacketDataNetworkGateway, referred to as P-GW)), thus mutually accessing between the first WAP and the second WAP is kept in a local network or between multiple base stations that in core net, same gateway manages, thus avoiding backbone network build-up of pressure.
When above-mentioned first WAP determines, according to the request message of terminal, the second WAP that storage has predetermined content, can adopt the following technical scheme that the first WAP obtains the predetermined information of at least one the second WAP, wherein, this predetermined information includes the source address information that the address information of the second WAP is corresponding with the content of storage in this second WAP；The source address information corresponding with the content that the second WAP stores that first WAP includes with predetermined information by contrasting request message determines that storage has the second WAP of predetermined content.May determine that storage has the second WAP of this predetermined content by the comparison of the source address of predetermined content, thus realizing quickly positioning the purpose of the second WAP.
After determining the second WAP that storage has a predetermined content, this predetermined content of storage in this second WAP can be obtained, in an optional embodiment, the first WAP obtains above-mentioned predetermined content from the second WAP determined and may include that the first WAP accesses this second WAP by storing the address information of the second WAP having predetermined content；First WAP obtains this predetermined content by the source address information that the predetermined content of storage in the second WAP is corresponding.After obtaining this predetermined content, just can be sent to terminal.
It can be multiple that first WAP obtains the mode of the address information of the second WAP, in an optional embodiment, when the first WAP and the second WAP are connected to same network management center, the first WAP can obtain the address information of this second WAP by network management center.Being specifically described below, Fig. 4 is the structured flowchart obtaining the second WAP address information according to embodiments of the present invention, and as shown in Figure 4, the IP address of the second WAP can be sent to the first WAP by network management center.Owing to network management center is for managing the network of the access point being attached thereto, therefore, it is possible to know these access points connection situation each other, thus network management center just can according to this situation, the information of first WAP other WAP attachable is sent to the first WAP, including the IP address information of at least one WAP.Or, the information of currently allocated all IP addresses is all sent to the first WAP by network management center.It practice, the form of network management center and connection are not limit, except the form shown in Fig. 4, network management center can also be one of them network equipment of core net, or a gateway；Or be connected to core net (or gateway) and be connected with each access point (base station) again by core net (or gateway)；Can also set up with multiple core net (or gateway) and be connected, it is possible to manage the multiple access points (base station) in multiple core net (or gateway)；PDN can also be passed through be attached with access point (base station), etc..
Before the first WAP obtains the predetermined information of the second WAP, whether the address information also including first going checking the second WAP is effective address information, when the address information of the second WAP is effective, remove to obtain the predetermined information of this second access point again, in an optional embodiment, verify whether the address information of the second WAP effectively can adopt the following technical scheme that the first WAP is attempted connecting the second WAP；First WAP judges whether to obtain the mandate of the second WAP；First WAP is when judged result is for being, it is determined that the address information of the second WAP is effective address information.Such as, the first WAP is when attempting connecting the second WAP, it is possible to attempt the connected state with the second wireless access access point voluntarily；Assume when the IP address of the first WAP is 192.168.1.10, all IP addresses of 192.168.1.xxx (xxx=001～255) (except self and gateway) can be attempted connecting by successively, such as send the Internet letter report control protocol (InternetControlMessagesProtocol, referred to as ICMP) to these IP addresses successively and ask message；This request message is sent to destination and reports whether receive desired ICMPecho (ICMP Echo Reply), if receiving ICMPecho, then it represents that can set up connection；Or the first WAP is attempted connecting to the WAP that IP address is 192.168.1.xxx successively and is sent storage Content-Authorize request, if one of them WAP has opened memory space, then just return authorization information to the first WAP, thus just setting up connection.In this embodiment, it is not necessary to the auxiliary of network management center, simpler and easy to spread.
It can be multiple that first WAP obtains the mode of the source address information corresponding with the content of storage in the second WAP, including:
Mode one: the first WAP obtains the source address information corresponding with the content of storage in the second WAP by cache information server, wherein, in this cache information server storage have following information at least one: the correspondence relationship information of the source address information of content of storage, source address information and the second WAP in the second WAP；
Mode two: the first WAP obtains the source address information corresponding with the content of storage in the second WAP by receiving second WAP mode periodically or to send the source address information corresponding with the content of storage in the second WAP in the way of event triggering；
Mode three: the first WAP is by periodically asking the mode of the source address information corresponding with the content of storage in the second WAP to determine the source address information corresponding with the content of storage in the second WAP to the second WAP.
In mode one, there is a cache information server for storing the content information of access point, for instance have 10 access points in LAN, then this server just stores the information of these stored contents of all access points, and storage content is as shown in table 1:
Table 1
| The source url of content |
| www.youku.com/1 |
| www.youku.com/2 |
| www.youku.com/3 |
| www.youku.com/4 |
| …… |
So, when the first wireless access point discovery is connected to after the terminal 1 of the first WAP initiated the access request to " www.youku.com/4 ", the first WAP just can access this url but directly access other access point being attached thereto and obtain corresponding contents.Wherein, the information of the content of own cache can be sent to cache information server by the second WAP in advance.
Especially, cache information server can also be an access point.Such as, certain access point is comparatively idle, then it can serve as the role of cache information server to realize above-mentioned functions.
First WAP obtains the information of the source address of content and the information of the access point of this content of storage from buffer memory information server；If the terminal being connected with the first WAP initiates the access request of the source address of content to the first WAP, and the first WAP judges the access point that may be coupled to store this content or is authorized to the content of this access point storage, then by the IP address of access the second access point to obtain this content, and it is sent to terminal.
Outside the information of the information that the first access point obtains from content server source address unless the context, it is also possible to obtain the information of the access point storing these contents, as shown in table 2.
Table 2
| Context number | Content name | The source url of content | Content stored access point IP address |
| 1 | The semi-gods and the semi-devils | www.youku.com/1 | 192.168.1.5 |
| 2 | Transformer | www.youku.com/2 | 192.168.1.6 |
| 3 | China on the tip of the tongue | www.youku.com/3 | 192.168.1.7 |
| 4 | The Olympic Games | www.youku.com/4 | 192.168.1.8 |
| …… | …… | …… | …… |
Wherein, last two row (" url of content " and " IP address, content stored base station ") are necessary, and other row are optional.So, if the first access point obtains this list information, and find that the terminal 1 being connected to the first WAP has initiated the access request to " www.youku.com/4 ", judge again self to connect access point IP address (or being authorized to the content of this IP address storage) corresponding for this url, first WAP just can access this url but directly access 192.168.1.8 to obtain corresponding contents, is so easy to the first access point and obtains required content more quickly.
Actually, the form of cache information server and connection are not limit, this cache information server can be the first WAP and/or the second WAP, and except above-mentioned form, this cache information server can also be one of them network equipment of core net；Or be connected to core net and be connected with each access point (base station) again by core net；Can also set up with multiple core net and be connected, it is possible to manage the multiple access points (base station) in multiple core net；PDN can also be passed through be attached with access point (base station), etc..
In mode two, the information of the source address of above-mentioned predetermined content can come from the second WAP, such as, second WAP periodically or in the way of event triggering to all devices in LAN or have built up the information that the equipment of connections (or authorize access stored content) sends the source address of storage content, for instance the 3rd in table 2 arranges；Equally, other WAP can also carry out similar operations ... storing after the information that the first access point receives the source address that these access points send, the access request sent further according to terminal judges which access point to obtain content from.By such mode, do not need the auxiliary of content server, decrease and receive known information, such as, in above embodiment, the information of the source address that the first WAP receives can include the information of the source address of the content of the first WAP self storage, and in this approach, the first WAP just need not receive such Given information.Above-mentioned can include in the way of event triggering, when the second WAP detects that wherein any change occurs stored source address information, just send and source address information corresponding to content stored in the second WAP or its more fresh information to the first WAP.
In mode three, first WAP can by periodically obtaining, to the mode of the second WAP transmission request, the source address information that in the second WAP, the content of storage is corresponding, in this approach, first WAP when needing the source address information obtaining the content of storage in the second access point, then can also send, to the second WAP, the request of acquisition.
First WAP before obtaining predetermined content from the second WAP determined, can also first determine whether that whether the connection of the first WAP and the second WAP is through backbone network, and when judged result is no, predetermined content is obtained, thus avoiding backbone network build-up of pressure from the second WAP determined.Judge that whether the connection of the first WAP and the second WAP can be multiple through the mode of backbone network, such as judged by the IP address of the two access point, or judge according to the time delay of communication between the two access point, or whether detection packet includes specific character etc. in some field.
Can refer in the above-described embodiments, the quantity of the second WAP can be one or more, when the quantity of the second WAP is multiple, and when in multiple second WAP, storage has part predetermined content respectively, the first WAP obtains predetermined content from the second WAP determined and includes: the first WAP determines multiple second WAPs of the predetermined content that composition is complete；First WAP is difference fetching portion predetermined content from multiple second WAPs determined；Predetermined content is sent to terminal and includes by the first WAP: the part predetermined content obtained respectively from multiple second WAPs determined is sent to terminal according to the order of predetermined content by the first WAP successively.
As above-mentioned stated, the content that terminal request obtains is likely very big, such as HD video can reach tens of Gbit size, and the incidental limited storage space of access point product, one access point possibly cannot hold a content, therefore in this embodiment, it is allowed to same content is stored at least two access point.For the first WAP, then need to obtain a content, corresponding at least two IP address from least two the second WAP.Now, the information of the source address of content will include at least two IP address, for instance shown in table 3, and content 2 is stored on 3 access points, first access point then needs from the complete content of three IP address acquisitions, and the order of content storage can be identical with the order of IP address in list.
Table 3
When predetermined content is sent to terminal by the first WAP, may there is failed situation, when sending unsuccessfully, in order to ensure the experience of user, this first WAP can obtain this content from the source address of subscription content, including: the first WAP determines the source address information of predetermined content；This first WAP obtains this predetermined content by access originator address information；The predetermined content of acquisition is sent to terminal by the first WAP.
For content supplier, the content resource that access point storage content supplier grasps is probably intolerable, so also has copyright problem.Therefore, in embodiments of the present invention, these access points can be installed identical application plug-in, such as by the excellent plug-in unit extremely developed, this plug-in unit is it can be avoided that piracy, even if other program except the excellent software extremely developed that is to say obtains the stored content file of access point, but owing to this document is encrypted or form has converted, cannot normally read information therein, avoid potential problem.Also it is similar for certificate, repeats no more here.Or, in order to avoid the problem of copyright, it is also possible at the first access point and the second access point previously established secure tunnel of communication, for instance security mechanisms such as the transmission channel set up according to ipsec protocol or HTTPS/SSL, thus the safety of guarantee information transmitting procedure.
Additionally providing a kind of content providing in the present embodiment, Fig. 5 is the flow chart of content providing according to embodiments of the present invention, as it is shown in figure 5, this flow process comprises the steps:
Step S502, second WAP receives the request message for acquisition request predetermined content that the first WAP sends, wherein, this request message includes the source address information of predetermined content, the source address information of predetermined content is different with the address information of the second WAP, and in the second WAP, storage has complete predetermined content and/or part predetermined content；
Step S504, the second WAP will be stored in the predetermined content in the second WAP according to request message and is supplied to the first WAP.
Pass through above-mentioned steps, identical content can be prevented effectively from and repeat transmission over the backbone, solve communication efficiency during the content in the terminal access network existed in correlation technique low, the problem that network transmission cost is high, and then reached raising communication efficiency, reduce the effect of network transmission cost.
Second WAP is before receiving the request message for acquisition request predetermined content that the first WAP sends, also include: the second WAP stores content according to the relevant information of content, wherein, the relevant information of this content includes at least one of: the size of content, the attribute of content, content form, access the number of times of this content, this content issuing time, comment on the number of times of this content；This second WAP determines the priority of content according to the relevant information of content；Content is updated by the second WAP according to the priority of content.
Wherein, when carrying out the storage of content, access point can obtain the information of file, and determine whether content is stored according to this information, for instance file then need not be stored in access point less than certain thresholding (such as 10Mbit), or has only to storage video file, or have only to the file of the following partly or entirely form of storage: .AVI, .wma .rmvb .rm, .flash, .mp4 .mid, 3GP etc..Again or, the access point record terminal access times to address, if more than 3 times, it is determined that be necessary this content is stored (enough popular).
Access point or private server record storage content are accessed for number of times, are accessed for number of times according to storage content and determine the priority of storage content, and determine whether to delete storage content according to priority.
In this embodiment of the invention, due to the limited storage space of access point, and people's content interested can be constantly updated, and therefore on access point, the content of storage is also required to constantly update.In embodiments of the present invention, access point record storage content is accessed for number of times, if in a period of time, (in such as 2 hours) are accessed frequently (being such as accessed 2 times), then it represents that this content remains in that certain popular degree, then the priority keeping this content is higher；Otherwise it is then relatively low.Access point determines whether the content deleting storage according to priority, then can store more popular content in limited space, and delete the uninterested content of people, reach more efficient utilization.Or these contents are accessed for information and are sent to private server by access point, the latter determines whether to delete.
The information of the content that self can periodically or non-periodically be stored by the second WAP (such as when stored content changes) notifies other access point or server, but still the problem that time difference can be caused, such as the first access point is according to old Thecontents list information, access the content of the second access point buffer memory, but actually this content is deleted, or cannot connect due to the catastrophic failure of network, now the first access point is when to obtain content by the second access point unsuccessful or when exceeding certain time, source address can be forwarded to and obtain content, do not limit in embodiments of the present invention, wherein the time can be fixed or configured by miscellaneous equipment.
The content of institute's buffer memory can be ad content, such as advertisement video or picture etc., it is simple to send advertisement and the different advertisement of diverse access point storage to user more quickly, by the form of the shared memory space of the present invention, these advertisements can be made to be accessed by more people and do not repeat to take the resource of backbone network.
Wherein, the address information of the first WAP and the second WAP can be distributed by same gateway；First WAP and the second WAP are provided with identical application plug-in and/or certificate；The secure tunnel having for carrying out data transmission is set up between first WAP and the second WAP.
Additionally providing a kind of content sending apparatus and content providing device in the present embodiment, this device is used for realizing above-described embodiment and preferred implementation, has be carried out repeating no more of explanation.As used below, term " module " can realize the software of predetermined function and/or the combination of hardware.Although the device described by following example preferably realizes with software, but hardware, or the realization of the combination of software and hardware is also likely to and is contemplated.
Fig. 6 is the structured flowchart of content sending apparatus according to embodiments of the present invention, this device is applied in the first WAP, as shown in Figure 6, this device includes the first receiver module 62, first determines module 64, acquisition module 66 and sending module 68, below this device is illustrated.
First receiver module 62, for receiving the request message for obtaining predetermined content that terminal sends, wherein, this request message includes the information of the source address of predetermined content；First determines module 64, is connected to above-mentioned first receiver module 62, and for determining that storage has the second WAP of this predetermined content according to solicited message, wherein, the source address of this predetermined content is different with the address of the second WAP；Acquisition module 66, is connected to above-mentioned first and determines module 64, for obtaining predetermined content from the second WAP determined；Sending module 68, is connected to above-mentioned acquisition module 66, for predetermined content is sent to terminal.
Fig. 7 first determines the structured flowchart of module 64 in content sending apparatus according to embodiments of the present invention, as it is shown in fig. 7, this first determines that module 64 includes acquiring unit 72 and determines unit 74, below first this being determined, module 64 illustrates.
Acquiring unit 72, for obtaining the predetermined information of at least one the second WAP, wherein, this predetermined information includes the source address information that the address information of the second WAP is corresponding with the content of storage in the second WAP；Determining unit 74, be connected to above-mentioned acquiring unit 72, the source address information corresponding with the content that the second WAP stores for including with predetermined information by contrasting request message determines that storage has the second WAP of this predetermined content.
Fig. 8 is the structured flowchart of acquisition module 66 in content sending apparatus according to embodiments of the present invention, and as shown in Figure 8, this acquisition module 66 includes accessing unit 82 and acquiring unit 84, below this acquisition module 66 is illustrated.
Access unit 82, for there being the address information of the second WAP of predetermined content to access the second WAP by storage；Acquiring unit 84, is connected to above-mentioned access unit 82, obtains predetermined content for the source address information corresponding by the predetermined content of storage in the second WAP.
Fig. 9 first determines the preferred structure block diagram of module 64 in content sending apparatus according to embodiments of the present invention, as it is shown in figure 9, this first determines module 64 except including all unit shown in Fig. 7, also includes authentication unit 92, is described below.
Whether authentication unit 92, is connected to above-mentioned acquiring unit 72, be effective address information for verifying the address information of the second WAP, including: attempt connecting the second WAP；Judge whether to obtain the mandate of the second WAP；When judged result is for being, it is determined that the address information of the second WAP is effective address information.
Figure 10 is the preferred structure block diagram of content sending apparatus according to embodiments of the present invention, and as shown in Figure 10, this device, except including all modules shown in Fig. 6, also includes judge module 102, is described below.
Judge module 102, is connected to above-mentioned acquisition module 66, for judging that whether connection with the second WAP is through backbone network, and when judged result is no, obtains predetermined content from the second WAP determined.
Figure 11 is the structured flowchart of content providing device according to embodiments of the present invention, this content providing device is applied in the second WAP, as shown in figure 11, this content providing device includes the second receiver module 112 and provides module 114, below this device is illustrated.
Second receiver module 112, for receiving the request message for acquisition request predetermined content that the first WAP sends, wherein, this request message includes the source address information of predetermined content, the source address information of predetermined content is different with the address information of the second WAP, and in the second WAP, storage has complete predetermined content and/or part predetermined content；Module 114 being provided, is connected to above-mentioned second receiver module 112, being supplied to the first WAP for will be stored in the predetermined content in the second WAP according to solicited message.
Figure 12 is the preferred structure block diagram of content providing device according to embodiments of the present invention, as shown in figure 12, this content providing device, except including all modules shown in Figure 11, also includes memory module 122, second determines module 124 and more new module 126, below this device is illustrated.
Memory module 122, it is connected to above-mentioned second receiver module 112, content is stored for the relevant information according to content, wherein, the relevant information of this content includes at least one of: the size of content, the attribute of content, content form, access this content number of times, content issuing time, comment on the number of times of this content；Second determines module 124, is connected to above-mentioned memory module 122, for determining the priority of content according to the relevant information of content；More new module 126, are connected to above-mentioned second and determine module 124, for the priority according to content, content are updated.
Pass through the various embodiments described above, it is possible to effectively solve communication efficiency during the content in the terminal access network existed in correlation technique low, the problem that network transmission cost is high, and then reached raising communication efficiency, reduce the effect of network transmission cost.
Obviously, those skilled in the art should be understood that, each module of the above-mentioned present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or it is distributed on the network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, can be stored in storage device is performed by calculation element, and in some cases, shown or described step can be performed with the order being different from herein, or they are fabricated to respectively each integrated circuit modules, or the multiple modules in them or step are fabricated to single integrated circuit module realize.So, the present invention is not restricted to the combination of any specific hardware and software.
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.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (23)
1. a content delivery method, it is characterised in that including:
First WAP receives the request message for obtaining predetermined content that terminal sends, and wherein, described request message includes the information of the source address of described predetermined content；
According to described request message, described first WAP determines that storage has the second WAP of described predetermined content, wherein, the source address of described predetermined content is different with the address of described second WAP；
Described first WAP obtains described predetermined content from described second WAP determined；
Described predetermined content is sent to described terminal by described first WAP.
2. method according to claim 1, it is characterised in that the quantity of described second WAP is one or more, in the plurality of second WAP, storage has complete described predetermined content or the described predetermined content of part respectively.
3. method according to claim 1, it is characterised in that the address information of described first WAP and described second WAP is distributed by same gateway.
4. method according to claim 1, it is characterised in that according to described request message, described first WAP determines that storage has the second WAP of described predetermined content to include:
Described first WAP obtains the predetermined information of at least one described second WAP, and wherein, described predetermined information includes the source address information that the address information of the second WAP is corresponding with the content of storage in described second WAP；
The source address information corresponding with the content that described second WAP stores that described first WAP includes with described predetermined information by contrasting described request message determines that storage has the second WAP of described predetermined content.
5. method according to claim 4, it is characterised in that described first WAP obtains described predetermined content from described second WAP determined and includes:
Described first WAP accesses described second WAP by storing the address information of the second WAP having described predetermined content；
Described first WAP obtains described predetermined content by the source address information that the described predetermined content of storage in described second WAP is corresponding.
6. method according to claim 4, it is characterised in that the address information that described first WAP obtains described second WAP includes:
When described first WAP and described second WAP are connected to same network management center, described first WAP obtains the address information of described second WAP by described network management center.
7. method according to claim 4, it is characterised in that described first WAP, before obtaining the predetermined information of described second WAP, also includes:
First WAP verifies whether the address information of described second WAP is effective address information, including: described first WAP is attempted connecting described second WAP；Described first WAP judges whether to obtain the mandate of described second WAP；Described first WAP is when judged result is for being, it is determined that the address information of described second WAP is effective address information.
8. method according to claim 4, it is characterised in that described first WAP obtain include with source address information corresponding to content stored in described second WAP in the following manner at least one:
Described first WAP obtains the source address information corresponding with the content of storage in described second WAP by cache information server, wherein, in described cache information server storage have following information at least one: the correspondence relationship information of the source address information of content of storage, described source address information and described second WAP in described second WAP；
Described first WAP obtains the source address information corresponding with the content of storage in described second WAP by receiving the mode of the source address information corresponding with the content of storage in described second WAP that described second WAP periodically sends；
Described first WAP is by periodically asking the mode of the source address information corresponding with the content of storage in described second WAP to determine the source address information corresponding with the content of storage in described second WAP to described second WAP.
9. method according to claim 8, it is characterised in that described cache information server includes described first WAP and/or described second WAP.
10. method according to claim 1, it is characterised in that described first WAP, before obtaining described predetermined content from described second WAP determined, also includes:
Described first WAP judges that whether the connection with described second WAP is through backbone network, and when judged result is no, obtains described predetermined content from described second WAP determined.
11. method according to claim 2, it is characterised in that when the quantity of described second WAP is multiple, and when in the plurality of second WAP, storage has the described predetermined content of part respectively,
Described first WAP obtains described predetermined content from described second WAP determined and includes: described first WAP determines multiple described second WAP constituting complete described predetermined content；Described first WAP is predetermined content described in difference fetching portion from the plurality of second WAP determined；
Described predetermined content is sent to described terminal and includes by described first WAP: the described predetermined content of part obtained respectively from the plurality of second WAP determined is sent to described terminal according to the order of described predetermined content by described first WAP successively.
12. method according to claim 1, it is characterised in that when described first WAP described predetermined content is sent to described terminal failed when, also include:
Described first WAP determines the source address information of described predetermined content；
Described first WAP obtains described predetermined content by accessing described source address information；
The described predetermined content obtained is sent to described terminal by described first WAP.
13. the method according to any one of claim 1 to 12, it is characterised in that described first WAP and be provided with identical application plug-in and/or certificate in described second WAP；And/or, set up the secure tunnel having for carrying out data transmission between described first WAP and described second WAP.
14. a content providing, it is characterised in that including:
Second WAP receives the request message for acquisition request predetermined content that the first WAP sends, wherein, described request message includes the source address information of described predetermined content, the source address information of described predetermined content is different with the address information of described second WAP, and in described second WAP, storage has complete described predetermined content and/or the described predetermined content of part；
Described second WAP will be stored in the described predetermined content in described second WAP according to described request message and is supplied to described first WAP.
15. method according to claim 14, it is characterised in that described second WAP, before receiving the request message for acquisition request predetermined content that described first WAP sends, also includes:
Described second WAP stores described content according to the relevant information of content, wherein, the relevant information of described content includes at least one of: the size of described content, the attribute of described content, described content form, access the number of times of described content, described content issuing time, comment on the number of times of described content；
Described second WAP determines the priority of described content according to the relevant information of described content；
Described content is updated by described second WAP according to the priority of described content.
16. the method according to claims 14 or 15, it is characterised in that include at least one of:
The address information of described first WAP and described second WAP is distributed by same gateway；
Described first WAP and described second WAP are provided with identical application plug-in and/or certificate；
The secure tunnel having for carrying out data transmission is set up between described first WAP and described second WAP.
17. a content sending apparatus, it is characterised in that be applied in the first WAP, including:
First receiver module, for receiving the request message for obtaining predetermined content that terminal sends, wherein, described request message includes the information of the source address of described predetermined content；
First determines module, and for determining that storage has the second WAP of described predetermined content according to described solicited message, wherein, the source address of described predetermined content is different with the address of described second WAP；
Acquisition module, for obtaining described predetermined content from described second WAP determined；
Sending module, for being sent to described terminal by described predetermined content.
18. device according to claim 17, it is characterised in that described first determines that module includes:
Acquiring unit, for obtaining the predetermined information of at least one described second WAP, wherein, described predetermined information includes the source address information that the address information of the second WAP is corresponding with the content of storage in described second WAP；
Determine unit, determine that storage has the second WAP of described predetermined content for the source address information corresponding with the content that described second WAP stores included with described predetermined information by contrasting described request message.
19. device according to claim 18, it is characterised in that described acquisition module includes:
Access unit, for address information described second WAP of access by storing the second WAP having described predetermined content；
Acquiring unit, obtains described predetermined content for the source address information corresponding by the described predetermined content of storage in described second WAP.
20. device according to claim 18, it is characterised in that also include:
Whether authentication unit, be effective address information for verifying the address information of described second WAP, including: attempt connecting described second WAP；Judge whether to obtain the mandate of described second WAP；When judged result is for being, it is determined that the address information of described second WAP is effective address information.
21. device according to claim 17, it is characterised in that also include:
Judge module, for judging that whether connection with described second WAP is through backbone network, and when judged result is no, obtains described predetermined content from described second WAP determined.
22. a content providing device, it is characterised in that be applied in the second WAP, including:
Second receiver module, for receiving the request message for acquisition request predetermined content that the first WAP sends, wherein, described request message includes the source address information of described predetermined content, the source address information of described predetermined content is different with the address information of described second WAP, and in described second WAP, storage has complete described predetermined content and/or the described predetermined content of part；
Module being provided, being supplied to described first WAP for will be stored in the described predetermined content in described second WAP according to described solicited message.
23. device according to claim 22, it is characterised in that also include:
Memory module, described content is stored for the relevant information according to content, wherein, the relevant information of described content includes at least one of: the size of described content, the attribute of described content, described content form, access the number of times of described content, described content issuing time, comment on the number of times of described content；
Second determines module, for determining the priority of described content according to the relevant information of described content；
More new module, is updated described content for the priority according to described content.
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| CN201410812306.7A CN105791229A (en) | 2014-12-22 | 2014-12-22 | Content transmitting and providing methods and devices |
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