WO2012163055A1

WO2012163055A1 - Method and related apparatus for transmitting media content

Info

Publication number: WO2012163055A1
Application number: PCT/CN2011/082398
Authority: WO
Inventors: 李金成; 和晓艳; 唐廷芳
Original assignee: 华为技术有限公司
Priority date: 2011-11-18
Filing date: 2011-11-18
Publication date: 2012-12-06
Also published as: CN103222312A

Abstract

A method and related apparatus for transmitting media content. The method comprises: a first content distribution network receiving a first content request sent by a user terminal, the first content request carrying a play domain name of a content provider; the first content distribution network acquiring a virtual domain name corresponding to the play domain name; the first content distribution network returning a first content request response to the user terminal, the first content request response carrying the virtual domain name, and the first content request response being used to instruct the user terminal to use the virtual domain name to request the media content provided by the content provider from a second content distribution network.

Description

Method for transmitting media content and related device

The embodiments of the present invention relate to the field of communications, and in particular, to a method for transmitting media content and related devices.

Background technique

In the old Internet applications, content providers often deploy a large number of servers for users to expand their own data services (such as Internet services, video services, etc.). With the increase in business access, this mode of deploying a large number of servers exposes some problems: First, these servers are often deployed at higher locations (such as backbone layers, aggregation layers, etc.) to achieve greater coverage, but When a large number of users access the network, the bandwidth of the backbone layer and the aggregation layer is occupied by a large amount of bandwidth, which causes great pressure on the network bandwidth. Secondly, because the server is at a higher level, the user request has a large delay, resulting in an unsatisfactory user experience. .

In response to the above problems, an independent content delivery network (CDN) system has appeared in the prior art. By deploying a large number of edge-cache nodes on the edge of the network, the CDN service provider provides services to users in the near future, thereby saving network bandwidth and improving user service experience. At the same time, telecom operators have begun to deploy CDN systems themselves, on the one hand to accelerate their own business, and at the same time can be provided to other content providers. The emergence of the CDN system allows content providers to deploy a small number of source servers to complete service provisioning. At the same time, when the number of users grows, the content provider does not need to perform network expansion, and the CDN system handles the traffic.

CDN service providers and telecom operators choose to deploy CDN systems in different regions according to their business development plans. The coverage of CDN systems varies from manufacturer to manufacturer, and there may be overlaps in coverage areas. However, the CDN system has not yet been standardized. The CDN systems of various manufacturers are self-contained and operate independently of each other without cooperation. At this point, the capabilities of the various CDN systems are not complementary. For example, CDN1 covers Beijing and Shanghai; CDN2 covers Xi'an and Shenzhen. At this point, if a content provider wants its content to be accessible to users in Beijing, Shanghai, Xi'an, and Shenzhen. No matter whether CDN1 or CDN2 can meet the requirements of the content provider separately.

In the prior art, the interoperability of the CDN system can realize the mutual capability between the CDN systems. Complement, coverage capability extension, and load sharing when CDN system traffic increases; for example, CDN1 is the primary CDN directly contracted with the content provider, CDN2 is the interworking CDN contracted with CDN1; content is requested from the user terminal to CDN1 When the media content provided by the provider is selected, the CDN1 selects the acceleration service of the media content provided by the CDN2 for the user terminal according to the local service policy, and the CDN1 returns the address of the Internet Protocol (IP) of the CDN2; The terminal will directly request the media content from the CDN 2 according to the IP address.

Although the above solution implements the interworking between the CDN systems, when the user terminal sends a content request to the CDN2, the content request often includes the play domain name of the content provider, and the play domain name relates to the content provider. The information causes a commercial relationship leak between the CDN1 and the content provider, that is, the CDN1, which CDN1 often does not want to communicate with, obtains relevant information of the content provider by itself.

Summary of the invention

Embodiments of the present invention provide a method for transmitting media content and related devices for transmitting media content through interworking of a content distribution network, but not sharing content provider information.

The method for transmitting media content provided by the present invention includes: receiving, by a first content distribution network, a first content request sent by a user terminal, where the first content request carries a play domain name of a content provider; Playing the virtual domain name corresponding to the domain name; the first content distribution network returns a first content request response to the user terminal, the first content request response carrying the virtual domain name, and the first content request response is used for Instructing the user terminal to request the media content provided by the content provider to the second content distribution network using the virtual domain name.

The method for transmitting media content provided by the present invention includes: the user terminal sends a first content request to the first content distribution network, the first content request carries a play domain name of the content provider; and the user terminal receives the first content request response And requesting the media content provided by the content provider to the second content distribution network by using the virtual domain name carried in the first content request response.

The method for transmitting media content provided by the present invention includes: configuring, by a first content distribution network, a virtual domain name for a play domain name of a content provider; the first content distribution network transmitting the virtual domain name to the content provider, so that The content provider replaces the play domain name with the virtual domain name, and causes the user terminal to send a content request to the second content distribution network according to the virtual domain name to obtain the media content. The content distribution network provided by the present invention includes: a first receiving unit, configured to receive a first content request sent by a user terminal, where the first content request carries a play domain name of a content provider; and a first acquiring unit, configured to acquire a virtual domain name corresponding to the play domain name in the first content request, a first returning unit, configured to return a first content request response to the user terminal, where the first content request response carries the virtual domain name, The first content request response is used to instruct the user terminal to request the media content provided by the content provider to the intercommunicating content distribution network using the virtual domain name.

The user terminal provided by the present invention includes: a first request sending unit, configured to send a first content request to a first content distribution network, where the first content request carries a play domain name of a content provider; and a response receiving unit, configured to Receiving a first content request response, the first content request response carrying a virtual domain name; and a content requesting unit, configured to request, by using the virtual domain name, the media content provided by the content provider to the second content distribution network.

The content distribution network provided by the present invention includes: a configuration unit, configured to configure a virtual domain name for a play domain name of a content provider; a domain name sending unit, configured to send the virtual domain name to the content provider, so that the content provider Replacing the play domain name with the virtual domain name, and causing the user terminal to send a content request to the intercommunication content distribution network according to the virtual domain name to obtain the media content.

It can be seen from the above technical solution that the embodiment of the present invention has the following advantages: In the embodiment of the present invention, after obtaining the first content request sent by the user terminal, the first content distribution network returns a first content request to the user terminal. Responding to instruct the user terminal to replace the play domain name of the content provider with the virtual domain name, and use the virtual domain name to request the media content provided by the content provider to the second content distribution network; thereby hiding the content offer from the second content distribution network The playing of the domain name of the merchant realizes the transmission of the media content through the intercommunication of the content distribution network, but does not share the content provider information, thereby preventing the leakage of the commercial relationship between the first content distribution network and the content provider.

DRAWINGS

1 is a schematic diagram of an embodiment of a method for transmitting media content according to the present invention;

2 is a schematic diagram of another embodiment of a method for transmitting media content according to the present invention;

3 is a schematic diagram of another embodiment of a method for transmitting media content according to the present invention;

4 is a schematic diagram of another embodiment of a method for transmitting media content according to the present invention;

FIG. 5 is a schematic diagram of another embodiment of a method for transmitting media content according to the present invention; FIG.

6 is a schematic diagram of another embodiment of a method for transmitting media content according to the present invention; 7 is a schematic structural diagram of a content distribution network according to the present invention;

8 is a schematic structural diagram of a user terminal according to the present invention;

FIG. 9 is a schematic structural diagram of a content distribution network according to the present invention.

detailed description

Referring to FIG. 1, an embodiment of a method for transmitting media content of the present invention includes:

101. The first content distribution network receives a first content request sent by the user terminal.

Receiving, by the first content distribution network, a first content request sent by the user terminal, where the first content request carries a play domain name of the content provider; the first content request may be acquired by a hypertext transfer protocol in an actual application (HTTP Get, The HyperText Transfer Protocol (Get) message is used to request the content content provided by the content provider from the first content distribution network; the play domain name may be a domain name of the content provider, or a domain name specified by the content provider.

In an actual application, the content provider signs a service agreement with the first content distribution network, and the first content distribution network provides the content provider with an acceleration service of the media content; therefore, when the user terminal plays the domain name, the user terminal And querying, by the play domain name, an IP address for providing the content provider with the first content distribution network, and sending a first content request to the first content distribution network according to the IP address, where the IP of the first content distribution network The address may be an IP address of a routing node in the first content distribution network (hereinafter referred to as a routing address of the first content distribution network), or may be an IP address of the serving node in the first content distribution network (hereinafter referred to as a first content distribution) Network service address).

102. The first content distribution network obtains a virtual domain name corresponding to the playing domain name.

The first content distribution network obtains the virtual domain name corresponding to the play domain name of the content provider, and may also store the mapping relationship between the play domain name and the virtual domain name.

In a practical application, the first content distribution network obtains the virtual domain name corresponding to the play domain name of the content provider, and may be: the first content distribution network locally configures the virtual domain name for the play domain name, and the first content distribution network directly saves the play domain name and Mapping the virtual domain name; or, the first content distribution network assigns a domain name identifier to the play domain name, and then sends the domain name identifier to the second content distribution network, where the second content distribution network configures the virtual domain name for the domain name identifier, and Return the virtual domain name to The first content distribution network, and the first content distribution network stores the playback domain name and the domain name identifier, and the mapping relationship between the domain name identifier and the virtual domain name, and the mapping relationship between the play domain name and the virtual domain name can be obtained according to the two sets of mapping relationships.

103. The first content distribution network returns a first content request response to the user terminal.

The first content distribution network returns a first content request response to the user terminal, the first content request response being used to instruct the user terminal to request the media content provided by the content provider to the second content distribution network using the virtual domain name.

In an actual application, after receiving the first content request response, the user terminal replaces the original play domain name with the virtual domain name carried in the first content request response, and sends the second domain distribution network to the second content distribution network by using the virtual domain name. The content request message requests media content provided by the content provider. The first content request response may be a redirect message, and may be another message having a domain name replacement function. The message type of the first content request response may be determined according to actual conditions, and is not limited herein.

In the embodiment of the present invention, after obtaining the first content request sent by the user terminal, the first content distribution network returns a first content request response to the user terminal, indicating that the user terminal replaces the play domain name of the content provider by using the virtual domain name. And requesting, by the virtual domain name, the media content provided by the content provider to the second content distribution network; thereby hiding the play domain name of the content provider from the second content distribution network, preventing the first content distribution network and the content provider The leak of business relationships between.

In a practical application, a domain name service (DNS, Domain Name Service) request initiated by a user terminal may be processed by the first content distribution network, or may be processed by a DNS proxy. The following describes the scenario in which the first content distribution network processes the network. Referring to FIG. 2, another embodiment of the method for transmitting media content of the present invention includes:

201. The first content distribution network receives the first domain name service request sent by the user terminal. When the user decides to obtain the media content, the user terminal obtains the media content after clicking the corresponding media content on the content provider's portal website. The playing domain name corresponding to the content, the user terminal further queries the IP address of the first content distribution network serving the content provider by using the playing domain name, and the user terminal needs to determine by using a DNS query in order to query the IP address of the first content distribution network. The first content distribution network receives the first DNS request sent by the user terminal, where the first DNS request carries the play domain name of the content provider, and the first DNS request is used to query the corresponding IP address of the play domain name. Specifically, in a practical application, the user terminal clicks the corresponding media content on the content provider's portal website, and the play domain name corresponding to the media content is obtained, and the user terminal sends the first DNS request according to the play domain name query. Query the IP address corresponding to the play domain name.

202. The first content distribution network determines whether the playing domain name needs to be hidden.

The first content distribution network determines whether the play domain name needs to be hidden. If yes, step 203 is performed to return the IP address of the first content distribution network to the user terminal, so as to prevent the user terminal from directly using the play domain name to distribute to the second content. The network requests the media content corresponding to the play domain name; if not, step 210 is performed to directly return the IP address of the second content distribution network to the user terminal.

In an actual application, the first content distribution network does not necessarily need to hide the play domain name for all content providers. Therefore, the first content distribution network may determine whether the play domain name needs to be hidden according to preset conditions. For example, the first content distribution network may determine whether the content distribution network needs to be intercommunicated according to a preset policy (such as the coverage capability or load condition of the first content distribution network). If not, the domain name hiding is not necessary. If necessary, it is determined whether the commercial relationship between the content provider corresponding to the play domain name and the first content distribution network is confidential (specifically, a list of content providers that need to be kept secret may be preset in the first content distribution network), If not required, it is not necessary to hide the playing domain name, and if necessary, trigger the process of hiding the playing domain name.

203. The first content distribution network returns a service address or a routing address to the user terminal.

When it is confirmed that the play domain name needs to be hidden, the first content distribution network returns a service address or a routing address of the first content distribution network to the user terminal, so that the user terminal sends the service address or routing address according to the service address or routing address of the first content distribution network. A content request.

In the embodiment of the present invention, since the first content distribution network needs to return a response of the DNS request (for querying the IP address), the service address or routing address returned in step 203 is an IP address.

Specifically, if the service node of the first content distribution network has a redirection function, the first content distribution network may return a service address or a routing address (the routing node has a redirection function), and the service address is actually returned. The routing address may be determined according to the requirements of the first content distribution network or the user terminal, and is not limited herein.

204. The first content distribution network receives a first content request sent by the user terminal.

Receiving, by the first content distribution network, a service address of the user terminal according to the first content distribution network Or a first content request sent by a routing address of the first content distribution network, the first content request carrying a play domain name of the content provider.

In an actual application, after the user terminal receives the service address of the first content distribution network or the routing address of the first content distribution network returned by the first content distribution network, if the user terminal receives the service address, the user terminal directly according to the The service address sends a first content request to the corresponding service node in the first content distribution network; if the user terminal receives the routing address, the corresponding routing node in the first content distribution network receives the first content request, first The content distribution network returns a redirect message to the terminal (the redirect message carries the service address of the first content distribution network), so that the user terminal sends the first content request to the service address carried in the redirect message again.

205. The first content distribution network obtains a virtual domain name corresponding to the playing domain name.

The first content distribution network acquires a virtual domain name corresponding to the play domain name of the content provider, and stores a mapping relationship between the play domain name and the virtual domain name.

Optionally, the first content distribution network may configure a corresponding virtual domain name for the play domain name. Specifically, in order to facilitate the second content distribution network identification and facilitate mapping of the play domain name, the configured virtual domain name may include The information about the content distribution network, or the identifier information that is allocated by the first content distribution network to the corresponding content provider, the related information of the first content distribution network may include: the identifier of the first content distribution network (specifically, the first The name of the content distribution network), or the identifier assigned by the first content distribution network to the content provider's play domain name; for example, if the first content distribution network is the operator akamai, the virtual domain name generated for a certain play domain name may be 1234 .cdn.akamai.com, where "1234" can be the identification information assigned to the content provider by the first content distribution network. The specific format of the virtual domain name can be determined by akamai itself. In order to facilitate the mapping between the content provider video.cp.com and the virtual domain name 1234.cdn.akamai.com, the virtual domain name can also be 10.1234.cdn.akamai.com, where "10" represents the content provider. The number of a play domain name (for example, the content provider and the first content distribution network have signed up for multiple accelerated domain names).

Optionally, the second content distribution network may also be configured with the virtual domain name for the domain name identifier. Specifically, the first content distribution network allocates the domain name identifier for the play domain name, and then sends the domain name identifier to the second content distribution network. Configuring a virtual domain name for the domain name identifier by the second content distribution network, and returning the virtual domain name to the first content distribution network, and the first content distribution network stores the play domain name and the domain name identifier, and the domain name identifier and the virtual domain name Mapping relationship, according to the two sets of mapping relationships Play the mapping relationship between the domain name and the virtual domain name.

In an actual application, the foregoing step 205 and the steps 203 and 204 have no strict order relationship, that is, the virtual domain name corresponding to the play domain name of the content provider may be obtained first, and then returned to the service address or routing address of the first content distribution network, or The first content request sent by the user terminal is received, and the execution order of step 205 is not specifically limited herein.

206. The first content distribution network returns a first content request response to the user terminal.

207. The first content distribution network receives a second DNS request sent by the user terminal.

The first content distribution network receives the second DNS request sent by the user terminal, where the second DNS request is used to query the IP address corresponding to the virtual domain name. Specifically, the first content distribution network indicates that the user terminal is in the second content. When the distribution network requests the media content, the play domain name is hidden. Therefore, the IP address corresponding to the virtual domain name acquires the IP address of the media content.

After receiving the first content request response, the user terminal should use the virtual domain name to request the media content provided by the content provider from the second content distribution network, but the user terminal cannot directly find the second content according to the virtual domain name. The distribution network, therefore, needs to send a second DNS request to the first content distribution network.

208. The first content distribution network acquires a service address or a routing address of the second content distribution network according to the second DNS request.

The first content distribution network acquires a service address or a routing address of the second content distribution network according to the second DNS request. Specifically, when the first content distribution network determines that the second content distribution network needs to provide services for the content provider, the first content distribution network selects according to a preset policy (eg, coverage capability or load condition of the content distribution network). The second content distribution network provides a service for the user terminal, so the mapping relationship between the play domain name and the second content distribution network is established, and the step 205 further stores the mapping relationship between the play domain name and the virtual domain name. The virtual domain name has an indirect mapping relationship with the second content distribution network. After receiving the second DNS request, the first content distribution network acquires the service of the second content distribution network according to the virtual domain name in the second DNS request. Address or routing address. Specifically, the first content distribution network may send an address request message to the second content distribution network (in the actual application, the address request message may be a DNS message), where the address request message may carry the virtual domain name; After receiving the address request message, the content distribution network returns a service address or a routing address of the second content distribution network to the first content distribution network.

Optionally, after the second content distribution network receives the address request message, the virtual domain name carried by the first content request may be extracted, so as to be confirmed by the virtual domain name when the second content request sent by the user terminal is subsequently received. Whether an acceleration service for media content needs to be provided for the user terminal. Optionally, the second content distribution network may also negotiate the service identifier when signing the contract with the first content distribution network. When the virtual domain name is configured, the service identifier may be carried in the virtual domain name, so that the user is subsequently received. When the second content request is sent by the terminal, the virtual domain name carried in the second content request may be identified. Optionally, the first content distribution network may separately distribute the network to the second content after completing the configuration of the virtual domain name. The virtual domain name is sent, so that when the second content request sent by the user terminal is received subsequently, it is confirmed by the virtual domain name whether the acceleration service of the media content needs to be provided for the user terminal. (In the embodiment of the present invention, if the virtual domain name is configured by the second content distribution network, the optional steps described in this paragraph need not be performed.)

209. The first content distribution network sends a service address or a routing address of the second content distribution network to the user terminal.

The first content distribution network sends a service address or a routing address of the second content distribution network to the user terminal, so that the user terminal can send a second content request to the service address or the routing address of the second content distribution network to obtain the content provider. Media content, the process ends.

Optionally, if the virtual domain name is configured by the second content distribution network, the second DNS request is sent to the second content distribution network, that is, the process of returning the IP address corresponding to the virtual domain name (steps 207 to 209) ) is processed by the second content distribution network.

After the user terminal acquires the service address or routing address of the second content distribution network, the user terminal can request the media content from the second content distribution network.

210. The first content distribution network acquires a service address or a routing address of the second content distribution network. When the first content distribution network determines that the play domain name does not need to be hidden, the first content distribution network according to the preset policy. (eg, coverage capability or load situation of the content distribution network) The second content distribution network is selected to provide services for the user terminal. Specifically, the first content distribution network may send an address request message to the second content distribution network, and the second content distribution network returns a service address or a routing address of the second content distribution network to the first content distribution network, where the service address or routing address All are IP addresses (since the first content distribution network needs to return a response to the DNS request to the user terminal).

211. The first content distribution network returns a service address or a routing address of the second content distribution network to the user terminal.

The first content distribution network returns a response message of the DNS request to the user terminal, where the response message of the DNS request carries the service address or routing address of the second content distribution network obtained in step 210 above, so that the user terminal can The service address or routing address of the second content distribution network sends a second content request to obtain media content provided by the content provider.

In the embodiment of the present invention, the address returned by each network element may be a service address or a routing address according to the requirements of each network element. If the service address is used, the service node corresponding to the service address may directly receive the received message. If the routing address is used, the routing node corresponding to the routing address returns a redirect message to the sending NE of the message (the redirecting message carries the service address), so that the sending NE of the message carries the redirect message. The service address is sent again by the service address; for details, refer to the description of step 204, and the steps are described here. In addition, the service address and the routing address may be expressed as a domain name or an IP address, and the domain name or the IP address may be determined according to the requirements of the returned message, and is not limited herein.

The embodiment of the present invention adds a judgment mechanism of "whether domain name hiding is required", so that when the media content is transmitted, the first content distribution network only performs the step of hiding the domain name for the content provider that needs to hide the domain name, thereby saving Unnecessary overhead.

The following is a description of the scenario in which the first content distribution network dynamically implements the domain name hiding in the process of routing by means of a proxy. Referring to FIG. 3, another embodiment of the method for transmitting media content of the present invention includes:

301. The first content distribution network receives a first content request sent by a user terminal.

The first content distribution network receives a first content request sent by the user terminal, and the first content request carries a play domain name of the content provider.

In the embodiment of the present invention, the DNS request initiated by the user terminal is processed by the DNS proxy, and the DNS proxy process returns the routing address of the first content distribution network to the user terminal, and the user terminal according to the The routing address initiates a first content request to the first content distribution network.

302. The first content distribution network determines whether the playing domain name needs to be hidden.

The first content distribution network determines whether the play domain name needs to be hidden. If yes, step 303 is performed, and if no, step 308 is performed.

303. The first content distribution network obtains a virtual domain name corresponding to the playing domain name.

When the first content distribution network determines whether the play domain name needs to be hidden, the first content distribution network acquires the virtual domain name corresponding to the play domain name of the content provider, and stores the mapping relationship between the play domain name and the virtual domain name.

In a practical application, the first content distribution network obtains the virtual domain name corresponding to the play domain name of the content provider, and may be: the first content distribution network locally configures the virtual domain name for the play domain name, and the first content distribution network directly saves the play domain name and Mapping the virtual domain name; or, the first content distribution network assigns a domain name identifier to the play domain name, and then sends the domain name identifier to the second content distribution network, where the second content distribution network configures the virtual domain name for the domain name identifier, and The virtual domain name is returned to the first content distribution network, and the first content distribution network stores the playback domain name and the domain name identifier, and the mapping relationship between the domain name identifier and the virtual domain name. According to the two sets of mapping relationships, the domain name and the virtual domain name can be obtained. The mapping relationship of domain names.

304. The first content distribution network replaces the play domain name in the first content request by using the virtual domain name. The first content distribution network replaces the play domain name in the first content request by using the obtained virtual domain name.

Specifically, the first content distribution network may delete the play domain name in the first content request, and replace it by using the obtained virtual domain name; and the first content distribution network may also modify the requested content, for example, Add information such as the IP address of the user terminal.

305. The first content distribution network sends a first content request after the domain name replacement is played to the second content distribution network.

The first content distribution network sends a first content request after the domain name replacement is played to the second content distribution network, so that the second content distribution network returns the service address returned by the second content distribution network. Specifically, when the first content distribution network determines that the second content distribution network needs to provide services for the content provider, the first content distribution network selects according to a preset policy (eg, coverage capability or load condition of the content distribution network). The second content distribution network provides a service for the user terminal, so that the mapping relationship between the play domain name and the second content distribution network is established, and the step 303 further stores the mapping relationship between the play domain name and the virtual domain name. The virtual domain name has an indirect mapping relationship with the second content distribution network, and the first content distribution network may find the second content distribution network corresponding to the virtual domain name according to the indirect mapping relationship.

In the embodiment of the present invention, the first content distribution network acts as a proxy for the service address query by the user terminal, and directly corrects the content of the first content request after receiving the first content request (replaces the original play with the virtual domain name) Domain name), and then forwarding the first content request after the domain name replacement to the second content distribution network, so that the second content distribution network directly returns the service address returned by the second content distribution network, thereby preventing the user terminal from querying the service address of the virtual domain name. , saving the overhead between networks.

After the second content distribution network receives the first content request, the virtual domain name carried by the first content request may be extracted, so as to confirm whether the virtual domain name needs to be confirmed by the virtual domain name when the second content request sent by the user terminal is subsequently received. The user terminal provides an accelerated service of media content.

306. The first content distribution network receives a service address returned by the second content distribution network. The first content distribution network receives a service address of the second content distribution network returned by the second content distribution network.

307. The first content distribution network returns a first content request response to the user terminal.

The first content distribution network returns a first content request response to the user terminal, and the process ends; the first content request response message carries the service address of the second content distribution network, so that the user terminal provides the service to the second content distribution network. The address sends a second content request to obtain media content provided by the content provider.

308. The first content distribution network acquires a service address of the second content distribution network. When the first content distribution network determines that it is not necessary to hide the play domain name, the first content distribution network selects the second content distribution network according to a preset policy (eg, coverage capability or load condition of the content distribution network). The user terminal provides the service.

Specifically, the first content distribution network may send an address request message to the second content distribution network, and the second content distribution network returns a service address of the second content distribution network to the first content distribution network, where the service address is an IP address (due to the first A content distribution network needs to return a response to the DNS request to the user terminal).

309. The first content distribution network returns a service address of the second content distribution network to the user terminal. The first content distribution network returns a response message of the DNS request to the user terminal, where the response message of the DNS request carries the service address of the two content distribution network acquired in the above step 308, so that the user terminal uses the play domain name to the second content. The service address of the distribution network sends a second content request for requesting the media content to the second content distribution network.

In a practical application, the second content distribution network may have an interoperable relationship with the third content distribution network. Therefore, after receiving the content request sent by the user terminal, the second content distribution network may also entrust the third content distribution network to The user terminal provides the acceleration service of the media content. For the interaction process between the second content distribution network and the third content distribution network, reference may be made to the foregoing embodiment in which the first content distribution network interacts with the second content distribution network, and details are not described herein.

After the user terminal acquires the service address of the second content distribution network, the user terminal sends a second content request to the service address of the second content distribution network, but in the actual application, the second content distribution network may not have a corresponding local content. The media content of the media content transmission method of the present invention includes:

401. The first content distribution network receives a third content request sent by the second content distribution network. The first content distribution network receives a third content request sent by the second content distribution network, where the third content request is used for A content distribution network requests the media content provided by the content provider, and the virtual content domain corresponding to the media content carried in the third content request.

Specifically, the embodiment of the present invention may occur after the foregoing any one of the embodiments of FIG. 1 to FIG. 3, when the second content distribution network receives the second content request sent by the user terminal, according to the virtual content carried in the second content request. When the domain name does not find the corresponding media content (the buffer may not be cached) The Miss phenomenon, the second content distribution network sends a third content request to the first content distribution network. In an actual application, the foregoing third content request may be sent to a service address of the first content distribution network, or may be sent to a routing address of the first content distribution network; if sent to a service address of the first content distribution network Step 402 may be directly triggered; if it is sent to the routing address of the first content distribution network, the first content distribution network returns the service address of the first content distribution network to the second content distribution network (ie, initiates a redirect message) And causing the second content distribution network to resend the third content request to the service address of the first content distribution network.

402. The first content distribution network determines whether the corresponding media content exists locally.

The first content distribution network determines whether the media content requested by the third content request exists locally, and if yes, step 403 is performed; if not, step 404 is performed.

403. The first content distribution network returns corresponding media content to the second content distribution network. After determining that the media content requested by the third content request is locally stored, the first content distribution network may distribute the second content by using a 200 OK message. The network returns the corresponding media content.

404. The first content distribution network searches for a uniform resource locator of the content provider according to the virtual domain name. After determining that the media content requested by the third content request is not stored locally, the first content distribution network is configured according to the third content request. Carrying the virtual domain name to find a content resource Provider (URL, Universal Resource Locator), and requesting corresponding media content from the content provider according to the URL, and receiving the media content returned by the content provider Thereafter, the media content is returned to the second content distribution network.

Specifically, since the first content distribution network has a mapping relationship between the play domain name and the virtual domain name, the play domain name can find the corresponding content provider by using the play domain name, and thus, the first content distribution network can also search for the content provider. URL. The method is described. The following describes the method for transmitting the media content in the embodiment of the present invention from the perspective of the user terminal. Referring to FIG. 5, another embodiment of the method for transmitting media content in the embodiment of the present invention includes:

501. The user terminal sends a first domain name service request.

The user terminal sends a first DNS request for querying an IP address corresponding to the play domain name, and the first DNS request carries the play domain name of the content provider. In an actual application, the user terminal clicks on the corresponding media content on the content provider's portal website, and the play domain name corresponding to the media content is obtained, and the user terminal further queries the content provider by using the play domain name query. The IP address of the content distribution network, the user terminal needs to query the IP address of the content distribution network through DNS query.

502. The user terminal receives a service address or a routing address of the first content distribution network. The user terminal receives a service address or a routing address of the first content distribution network returned by the first content distribution network or the DNS proxy.

The first content distribution network or the DNS proxy determines whether the playback domain name needs to be hidden. If yes, the service address or the routing address of the first content distribution network is returned to the user terminal, and the user terminal is prevented from directly using the play domain name. The content distribution network requests the media content corresponding to the play domain name.

In a practical application, the DNS request sent by the user terminal may be returned by the first content distribution network (that is, the service address or the routing address of the first content distribution network is returned), and the response may be returned by the DNS proxy, which is not limited herein.

The service address and the routing address may be expressed as a domain name or an IP address. However, in the embodiment of the present invention, since the first content distribution network needs to return a response of the DNS request (for querying the IP address), in step 502, The returned service address or routing address is an IP address.

503. The user terminal sends a first content request to the first content distribution network.

The user terminal sends a first content request to the first content distribution network according to the received service address or routing address, and the first content request carries the play domain name of the content provider.

504. The user terminal receives a first content request response.

The user terminal receives the first content request response, where the first content request response carries the virtual domain name corresponding to the play domain name; after the user terminal obtains the virtual domain name, the virtual domain name may be used to replace the corresponding play domain name, and then the domain name is used. The virtual domain name requests the media content provided by the content provider to the second content distribution network.

Specifically, if the virtual domain name is configured by the second content distribution network, the first content request response may be sent by the second content distribution network, and if the virtual domain name is configured by the first content distribution network, The first content request response is sent by the first content distribution network.

505. The user terminal sends a second DNS request according to the virtual domain name. The user terminal sends a second DNS request according to the virtual domain name, where the second DNS request is used to query an IP address corresponding to the virtual domain name.

Specifically, the first content distribution network indicates that the user terminal hides the play domain name when requesting the media content from the second content distribution network, so that the IP address corresponding to the virtual domain name acquires the The IP address of the media content.

Optionally, if the virtual domain name is configured by the second content distribution network, the user terminal may send a second DNS request to the second content distribution network; if the virtual domain name is configured by the first content distribution network, the user The terminal may send a second DNS request to the first content distribution network.

506. The user terminal receives a service address or a routing address of the returned second content distribution network. The user terminal receives a service address or a routing address of the second content distribution network returned by the first content distribution network or the second content distribution network.

Optionally, after the first content distribution network receives the second DNS request, the first content distribution network acquires a service address or a routing address of the second content distribution network from the second content distribution network, and obtains the second The service address or routing address of the content distribution network is returned to the user terminal; if the second content distribution network receives the second DNS request, the service address or routing address of the second content distribution network may be directly returned to the user terminal.

507. The user terminal sends a second content request to a service address or a routing address of the second content distribution network according to the virtual domain name.

The user terminal sends a second content request to the service address or the routing address of the second content distribution network according to the virtual domain name, so that the second content distribution network returns the media content required by the user terminal.

The above embodiment describes how to dynamically implement domain name hiding in the process of routing. The following embodiment describes how to implement static configuration of a virtual domain name. Referring to FIG. 6, another embodiment of the method for transmitting media content of the present invention includes:

601. The first content distribution network configures a virtual domain name for the play domain name of the content provider. The first content distribution network configures a virtual domain name for the play domain name of the content provider, and stores a mapping relationship between the play domain name and the virtual domain name.

Specifically, in order to facilitate the second content distribution network identification and facilitate mapping of the play domain name, the configured virtual domain name may include related information of the first content distribution network, or the first content distribution network provides corresponding content. For example, if the first content distribution network is the operator akamai, the virtual domain name generated for a certain play domain name may be 1234.cdn.akamai.com, where "1234," may be the first content. The distribution network assigns identification information to the content provider. The specific format of the virtual domain name can be determined by akamai itself. In order to facilitate the content provider to play the mapping between the domain name video.cp.com and the virtual domain name 1234.cdn.akamai.com, The virtual domain name can also be 10.1234.cdn.akamai.com, where "10" represents the number of a playlist for the content provider (eg, the content provider has signed up for multiple accelerated domain names with the first content distribution network).

602. The first content distribution network sends a virtual domain name to the content provider.

The first content distribution network sends the virtual domain name corresponding to the corresponding play domain name to the content provider, so that the content provider replaces the play domain name with the virtual domain name, and causes the user terminal to use the virtual domain name provided by the content provider. The second content distribution network sends a content request.

Specifically, after receiving the virtual domain name corresponding to the corresponding play domain name, the content provider modifies the domain name linked by each media content on the content provider's portal website (ie, replaces the corresponding play domain name by using the virtual domain name), so that the user clicks When the corresponding media content is obtained, the virtual domain name corresponding to the media content is obtained, and the user terminal sends a content request to the second content distribution network according to the virtual domain name, and requests the corresponding media content.

603. The first content distribution network sends configuration information of the content provider to the second content distribution network. The first content distribution network sends configuration information of the content provider to the second content distribution network, so that the second content distribution network may be configured according to the The configuration information operates on the content request.

In an actual application, when receiving the content request initiated by the user terminal, the second content distribution network needs to confirm whether the media content requested by the content request is an accelerated media content required by the first content distribution network (due to the first content) The distribution network has a contractual relationship with the second content distribution network, and only the media content specified by the first content distribution network is confirmed to provide the service, and then the content request is corresponding. Specifically, the foregoing configuration information may be a virtual domain name, or identifier information allocated by the first content distribution network for the content provider (the identifier information corresponds to the virtual domain name), or The control information configured by the virtual domain name or the identification information; the control message may include: an area and/or time range information that is allowed to be distributed, and a distribution protocol that is allowed to be adopted.

There is no strict timing relationship between step 602 and step 603, which can be performed simultaneously. 604. The first content distribution network receives a DNS request sent by the user terminal.

The first content distribution network receives a DNS request sent by the user terminal, and the DNS request is used to query an IP address corresponding to the virtual domain name.

605. The first content distribution network acquires a service address or a routing address of the second content distribution network according to the DNS request.

The first content distribution network acquires a service address or a routing address of the second content distribution network according to the above DNS request.

Specifically, the first content distribution network may send an address request message to the second content distribution network, where the address request message may carry the virtual domain name; after receiving the address request message, the second content distribution network may first The content distribution network returns a service address or routing address of the second content distribution network.

606. The first content distribution network sends the service address or the routing address to the user terminal. The first content distribution network sends the service address or the routing address of the second content distribution network to the user terminal, so that the user terminal uses the virtual domain name to the second content. The service address or routing address of the distribution network sends a second content request for requesting the media content to the second content distribution network.

The following describes an embodiment of the content distribution network of the present invention for performing the above-described method for transmitting media content. For the logical structure, please refer to FIG. 7. An embodiment of the content distribution network in the embodiment of the present invention includes:

The first receiving unit 701 is configured to receive a first content request sent by the user terminal, where the first content request carries a play domain name of the content provider;

The first obtaining unit 702 is configured to acquire a virtual domain name corresponding to the play domain name in the first content request.

a first returning unit 703, configured to return a first content request response to the user terminal, where the first content request response carries the virtual domain name, and the first content request response is used to indicate that the user terminal uses the The virtual domain name is requested by the content provider to the intercommunication content distribution network Media content.

The content distribution network in the embodiment of the present invention may further include:

The second obtaining unit 704 is configured to obtain a first domain name service DNS request sent by the user terminal, where the first DNS request carries a play domain name of the content provider;

The first determining unit 705 is configured to determine whether the play domain name needs to be hidden, and if yes, return a local service address or a routing address to the user terminal, so that the user terminal sends the local service address or routing address to the local service address or routing address. The first content request is described.

The second receiving unit 706 is configured to receive a second DNS request sent by the user terminal, where the second DNS request carries a service address or a routing address of the virtual domain name;

a first sending unit 708, configured to send, to the user terminal, a service address or a routing address of the interworking content distribution network, so that the user terminal uses the virtual domain name to distribute the service address of the network to the intercommunicated content or The routing address requests the media content provided by the content provider.

a replacement unit 709, configured to replace, by using the virtual domain name, a play domain name in the first content request;

a second sending unit 710, configured to send, to the intercommunicating content distribution network, a first content request after playing the domain name replacement;

The second returning unit 711 is configured to receive a service address or a routing address of the intercommunicating content distribution network returned by the intercommunicating content distribution network.

The third receiving unit 712 is configured to receive, by the interworking content distribution network, a third content request that carries the virtual domain name, where the third content request is used to locally request the media content provided by the content provider;

a second determining unit 713, configured to: if the third content request is sent to the local service address, determine whether the media content exists locally, and if yes, return the content to the intercommunicating content distribution network Media content; if not, searching for a uniform resource locator URL of the content provider according to the virtual domain name, and requesting the media content from the content provider according to the URL, and receiving the content sent by the content provider After the media content, the media content is returned to the intercommunicating content distribution network. For convenience of description, the content distribution network that is contracted with the content provider is the first content distribution network, and the content distribution network that communicates with the first content distribution network is the second content distribution network.

After the user terminal clicks the corresponding media content on the portal of the content provider, the second obtaining unit 704 of the first content distribution network acquires the first DNS request sent by the user terminal, where the first DNS request carries the content provider The playing domain name, the first DNS request is used to query the IP address corresponding to the playing domain name.

Then, the first determining unit 705 determines whether the playing domain name needs to be hidden, and if yes, returns a service address or a routing address of the first content distribution network to the user terminal, so that the user terminal sends the local service address to the local service address. Or the routing address sends the first content request; if not, operates according to the prior art process.

After the user terminal receives the service address or the routing address of the first content distribution network, the first receiving unit 701 receives the first sent by the user terminal according to the service address of the first content distribution network or the routing address of the first content distribution network. The content request, the first content request carries a play domain name of the content provider.

After receiving the first content request, the first obtaining unit 702 acquires a virtual domain name corresponding to the play domain name of the content provider, and stores a mapping relationship between the play domain name and the virtual domain name.

Optionally, the first content distribution network may configure a corresponding virtual domain name for the play domain name. Specifically, in order to facilitate the second content distribution network identification and facilitate mapping of the play domain name, the configured virtual domain name may include The related information of the first content distribution network, or the identifier information of the first content distribution network, and the related information of the first content distribution network may include: an identifier of the first content distribution network (specifically, The name of a content distribution network), or the identifier of the first content distribution network assigned to the content provider's play domain name; for example, if the first content distribution network is the operator akamai, the virtual domain name generated for a certain play domain name may be 1234.cdn.akamai.com, where "1234" can be the identification information assigned to the content provider by the first content distribution network. The specific format of the virtual domain name can be determined by akamai itself. In order to facilitate the mapping between the content provider video.cp.com and the virtual domain name 1234.cdn.akamai.com, the virtual domain name can also be 10.1234.cdn.akamai.com, where "10" represents the content provider. The number of a play domain name (for example, the content provider and the first content distribution network have signed up for multiple accelerated domain names). Optionally, the first content distribution network may first return, by the first returning unit 703, a first content request response to the user terminal, where the first content request response is used to indicate that the user terminal uses the virtual domain name to request the second content distribution network. The media content provided by the content provider; after receiving the first content request response, the user terminal requests the media content provided by the content provider to the second content distribution network by using the virtual domain name, but the user terminal cannot directly The virtual domain name finds the second content distribution network, and therefore, the second DNS request needs to be sent to the first content distribution network; the second receiving unit 706 receives the second DNS request sent by the user terminal, and is processed by the third obtaining unit 707 according to the foregoing The second DNS request acquires the service address or the routing address of the second content distribution network, and finally the first sending unit 708 sends the service address or routing address of the second content distribution network to the user terminal, so that the user terminal can distribute the network to the second content distribution network. Service address or routing address sends a second content request to obtain Take the media content provided by the content provider.

Optionally, the first content distribution network may also replace the play domain name in the first content request by the replacing unit 709 using the obtained virtual domain name. Specifically, the replacing unit 709 may delete the play domain name in the first content request, and replace it by using the obtained virtual domain name; and the first content distribution network may further modify the request content, for example, increase the IP address of the user terminal, etc.; The second sending unit 710 sends a first content request after the domain name replacement is played to the second content distribution network, so that the second content distribution network returns the service address returned by the second content distribution network; preferably, the second return unit 711 is directed to the user terminal. Returning a first content request response, where the first content request response message carries a service address of the second content distribution network, so that the user terminal can send a second content request to a service address or a routing address of the second content distribution network, To get the media content provided by the content provider.

After the user terminal acquires the service address of the second content distribution network, the user terminal sends a second content request to the service address of the second content distribution network, but in the actual application, the second content distribution network may not have a corresponding local content. The media content, therefore, the media content cannot be returned to the user terminal; the third receiving unit 712 of the first content distribution network receives the third content request sent by the second content distribution network, and the third content request Requesting media content provided by the content provider to the first content distribution network.

After receiving the third content request, if the third content request is sent to the local service address, the second determining unit 713 determines whether the media content exists locally, and if so, to the first Returning, by the second content distribution network, the media content; if not, searching within the virtual domain name And a uniform resource locator URL of the provider, and requesting the media content from the content provider according to the URL, and after receiving the media content sent by the content provider, distributing the content to the second content The network returns the media content.

The following describes an embodiment of the user terminal of the present invention for performing the foregoing method for transmitting media content. For the logical structure, please refer to FIG. 8. One embodiment of the user terminal in the embodiment of the present invention includes: a first request sending unit 801 And sending, to the first content distribution network, a first content request, where the first content request carries a play domain name of the content provider;

The response receiving unit 802 is configured to receive a first content request response, where the first content request response carries a virtual domain name;

The content requesting unit 803 is configured to request, by using the virtual domain name carried in the first content request response, the media content provided by the content provider to the second content distribution network.

The user terminal in the embodiment of the present invention may further include:

The second request sending unit 804 is configured to send a first DNS request, where the first DNS request carries a play domain name of the content provider;

The address receiving unit 805 is configured to receive a service address or a routing address of the first content distribution network returned by the first content distribution network or the DNS proxy, so that the first request sending unit 801 is configured according to the first content distribution network. The service address or routing address sends the first content request.

The content requesting unit 803 in the embodiment of the present invention includes:

An address obtaining submodule 8031, configured to acquire a service address or a routing address of the second content distribution network according to the virtual domain name;

The content requesting sub-module 8032 is configured to request, according to the virtual domain name, the media content provided by the content provider to a service address or a routing address of the second content distribution network.

The first content request response received by the response receiving unit 802 further carries a service address or a routing address of the second content distribution network;

The content requesting unit 803 is specifically configured to request, by using a virtual domain name carried in the first content request response, the media content provided by the content provider to a service address or a routing address of the second content distribution network.

The specific execution process of each unit in the user terminal in the embodiment of the present invention is as follows:

The user terminal clicks on the corresponding media content on the content provider's portal and gets it. The second domain request sending unit 804 of the user terminal sends a first DNS request for querying the IP address corresponding to the playing domain name, and the first DNS request carries the playing domain name of the content provider.

Thereafter, the address receiving unit 805 receives the service address or routing address of the first content distribution network returned by the first content distribution network or the DNS proxy. In a practical application, the DNS request sent by the user terminal may be returned by the first content distribution network (that is, the service address or the routing address of the first content distribution network is returned), and the response may be returned by the DNS proxy, which is not limited herein.

Thereafter, the first request sending unit 801 sends a first content request to the first content distribution network according to the received service address or routing address, the first content request carrying the play domain name of the content provider.

Then, the response receiving unit 802 receives the first content request response, where the first content request response carries the virtual domain name corresponding to the play domain name. After the virtual domain name is obtained by the user terminal, the virtual domain name may be used to replace the corresponding play domain name, and then the virtual domain name is used to request the media content provided by the content provider to the second content distribution network.

Thereafter, the content requesting unit 803 requests the media content provided by the content provider to the second content distribution network using the virtual domain name carried in the first content request response. Specifically, the address obtaining submodule 8031 receives the returned service address or routing address of the second content distribution network; preferably, the content requesting submodule 8032 sends the service address of the second content distribution network according to the virtual domain name. Or routing address sends a second content request, causing the second content distribution network to return the media content.

The following describes an embodiment of the content distribution network of the present invention for performing the above method for statically configuring a virtual domain name. For the logical structure, refer to FIG. 9. Another embodiment of the content distribution network in the embodiment of the present invention includes:

The configuration unit 901 is configured to configure a virtual domain name for the play domain name of the content provider.

The domain name sending unit 902 is configured to send the virtual domain name to the content provider, so that the content provider replaces the play domain name by using the virtual domain name, and causes the user terminal to distribute the content to the intercommunicated content according to the virtual domain name. The network sends a content request to get the media content.

a request receiving unit 903, configured to receive a DNS request sent by the user terminal, where the DNS The request carries the virtual domain name provided by the content provider to the user terminal; and the sending unit 905 is configured to send a service address sending content request of the intercommunicating content distribution network to the user terminal. The configuration unit 901 of the first content distribution network configures a virtual domain name for the play domain name of the content provider, and stores a mapping relationship between the play domain name and the virtual domain name. Specifically, in order to facilitate the second content distribution network identification and facilitate mapping of the play domain name, the configured virtual domain name may include related information of the first content distribution network, or the first content distribution network provides corresponding content. For example, if the first content distribution network is the operator akamai, the virtual domain name generated for a certain play domain name may be 1234.cdn.akamai.com, where "1234" may be the first content distribution. The identification information assigned by the network to the content provider. The specific format of the virtual domain name can be determined by akamai itself. In order to facilitate the mapping between the content provider video.cp.com and the virtual domain name 1234.cdn.akamai.com, the virtual domain name can also be 10.1234.cdn.akamai.com, where "10" represents the content provider. The number of a play domain name.

The domain name sending unit 902 sends the virtual domain name corresponding to the corresponding playing domain name to the content provider, so that the content provider replaces the playing domain name with the virtual domain name, and causes the user terminal to follow the virtual domain name provided by the content provider. The content distribution network sends a content request. Specifically, after receiving the virtual domain name corresponding to the corresponding play domain name, the content provider modifies the domain name linked by each media content on the content provider's portal website (ie, replaces the corresponding play domain name by using the virtual domain name), so that the user clicks When the corresponding media content is obtained, the virtual domain name corresponding to the media content is obtained, and the user terminal sends a content request to the second content distribution network according to the virtual domain name, and requests the corresponding media content.

In an actual application, when receiving the content request initiated by the user terminal, the second content distribution network needs to determine whether the media content requested by the content request is accelerated media content required by the first content distribution network (due to the first content) The distribution network has a contractual relationship with the second content distribution network, and only the media content specified by the first content distribution network is confirmed to provide the service, and then the content request is corresponding. Specifically, the foregoing configuration information may be a virtual domain name, or a first content distribution network. The identification information assigned to the content provider (the identification information corresponds to the virtual domain name), or the control information configured for the virtual domain name or the identification information; the control message may include: area and/or time range information that is allowed to be distributed , the distribution agreement allowed.

After the virtual domain name is sent to the content provider, and the configuration information of the content provider is sent to the second content distribution network, the request receiving unit 903 receives a DNS request sent by the user terminal, where the DNS request is used to query the corresponding virtual domain name. IP address. The obtaining unit 904 acquires the service address or the routing address of the second content distribution network according to the foregoing DNS request. Finally, the sending unit 905 sends the service address or the routing address of the second content distribution network to the user terminal, so that the user terminal can distribute the content to the second content. The service address or routing address of the network sends a second content request to obtain the media content provided by the content provider.

In the several embodiments provided herein, it should be understood that the disclosed apparatus and method can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.

The units described as separate components may or may not be physically separate, and the components displayed as the units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage. The medium includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Rights request

A method for transmitting media content, characterized in that it comprises:

Receiving, by the first content distribution network, a first content request sent by the user terminal, where the first content request carries a play domain name of the content provider;

Obtaining, by the first content distribution network, a virtual domain name corresponding to the play domain name;

Returning, by the first content distribution network, a first content request response to the user terminal, where the first content request response carries the virtual domain name, and the first content request response is used to indicate that the user terminal uses the virtual The domain name requests the media distribution network provided by the content provider to the second content distribution network.

The method according to claim 1, wherein before receiving the first content request sent by the user terminal, the method further includes:

The first content distribution network acquires a first domain name service request sent by the user terminal, and the first domain name service request carries a play domain name of the content provider;

Determining, by the first content distribution network, whether the play domain name needs to be hidden, and if yes, returning a service address or a routing address of the first content distribution network to the user terminal, so that the user terminal is to the first The first content request is sent by a service address or a routing address of the content distribution network.

The method according to claim 1, wherein after receiving the first content request sent by the user terminal, the method further includes:

The first content distribution network determines whether the play domain name needs to be hidden, and if so, triggers the step of acquiring the virtual domain name corresponding to the play domain name.

The method according to claim 2 or 3, wherein after the returning the first content request response to the user terminal, the method further includes:

Receiving, by the first content distribution network, a second domain name service request sent by the user terminal, where the second domain name service request carries the virtual domain name;

Obtaining, by the first content distribution network, a service address or a routing address of the second content distribution network according to the virtual domain name;

Transmitting, by the first content distribution network, a service address or a routing address of the second content distribution network to the user terminal, so that the user terminal uses the virtual domain name to distribute the second content The service address or routing address of the network requests the media content provided by the content provider.

The method according to claim 4, wherein the first content distribution network acquires a service address or a routing address of the second content distribution network according to the virtual domain name, and the method includes:

The first content distribution network sends an address request message to the second content distribution network according to the virtual domain name, where the address request message carries the virtual domain name;

The first content distribution network receives a service address or a routing address of a second content distribution network returned by the second content distribution network.

The method according to claim 2 or 3, wherein before the returning the first content request response to the user terminal, the method includes:

The first content distribution network replaces the play domain name in the first content request with the virtual domain name;

Transmitting, by the first content distribution network, the first content request after the play domain name replacement to the second content distribution network;

Receiving, by the first content distribution network, a service address of the second content distribution network returned by the second content distribution network;

The returning the first content request response to the user terminal includes:

And returning, to the user terminal, a first content request response message, where the first content request response message carries a service address or a routing address of the second content distribution network.

The method according to claim 4, after the sending the service address or the routing address of the second content distribution network to the user terminal, the method includes:

Receiving, by the first content distribution network, a third content request that is sent by the second content distribution network and carrying the virtual domain name, where the third content request is used to request the content provider from the first content distribution network. Provided media content;

If the third content request is sent to the service address of the first content distribution network, the first content distribution network determines whether the media content provided by the content provider exists locally, and if so, to the Returning, by the second content distribution network, the media content; if not, searching for a uniform resource locator URL of the content provider according to the virtual domain name, and requesting the media content from the content provider according to the URL, and receiving After the media content sent by the content provider, the media content is returned to the second content distribution network.

8. A method for transmitting media content, characterized by comprising:

The user terminal sends a first content request to the first content distribution network, where the first content request carries a play domain name of the content provider;

The user terminal receives the first content request response and requests the media content provided by the content provider to the second content distribution network using the virtual domain name carried in the first content request response.

The method according to claim 8, wherein before the sending the first content request to the first content distribution network, the method includes:

The user terminal sends a first domain name service request, and the first domain name service request carries a play domain name of the content provider;

Receiving, by the user terminal, a service address or a routing address of the first content distribution network returned by the first content distribution network or a domain name service proxy, and triggering according to the service address or routing address of the first content distribution network A first content request is sent to the first content distribution network.

The method according to claim 8 or 9, wherein the requesting, by the virtual domain name, the media content provided by the content provider to the second content distribution network comprises:

Sending, by the user terminal, a second domain name service request according to the virtual domain name;

Receiving, by the user terminal, a service address or a routing address of the returned second content distribution network; the user terminal requesting the content providing to a service address or a routing address of the second content distribution network according to the virtual domain name Media content provided by the business.

The method according to claim 8, wherein if the first content request response further carries a service address or a routing address of the second content distribution network, the using the virtual domain name to the second The content distribution network requests the media content provided by the content provider, and further includes:

The user terminal requests the media content provided by the content provider to the service address or routing address of the second content distribution network by using the virtual domain name carried in the first content request response.

12. A method for transmitting media content, comprising:

The first content distribution network configures a virtual domain name for the play domain name of the content provider; the content provider replaces the play domain name with the virtual domain name, and causes the user terminal to send a content request to the second content distribution network according to the virtual domain name to obtain Media content.

13. The method according to claim 14, wherein the user terminal is caused to be based on Sending the content request to the second content distribution network to obtain the media content, the method includes: the first content distribution network receiving a domain name service request sent by the user terminal, where the domain name service request carries the content provider Providing the virtual domain name to the user terminal;

Obtaining, by the first content distribution network, a service address or a routing address of the second content distribution network;

The first content distribution network sends a service address of the second content distribution network to the user terminal, so that the user terminal sends a content request to a service address of the second content distribution network according to the virtual domain name.

14. A content distribution network, comprising:

a first receiving unit, configured to receive a first content request sent by the user terminal, where the first content request carries a play domain name of the content provider;

a first acquiring unit, configured to acquire a virtual domain name corresponding to the play domain name in the first content request;

a first returning unit, configured to return a first content request response to the user terminal, where the first content request response carries the virtual domain name, and the first content request response is used to instruct the user terminal to use the The virtual domain name requests the media content provided by the content provider to the intercommunication content distribution network.

The content distribution network according to claim 14, wherein the content distribution network further comprises:

a second acquiring unit, configured to acquire a first domain name service request sent by the user terminal, where the first domain name service request carries a play domain name of the content provider;

a first determining unit, configured to determine whether the play domain name needs to be hidden, and if yes, return a local service address or a routing address to the user terminal, so that the user terminal sends the local service address or a routing address to the local service address or routing address First content request.

a second receiving unit, configured to receive a second domain name service request sent by the user terminal, where the second domain name service request carries the virtual domain name;

Third acquisition unit, Service address or routing address;

a first sending unit, configured to send, to the user terminal, a service address or a routing address of the intercommunicating content distribution network, so that the user terminal uses the virtual domain name to deliver a service address or route of the intercommunicated content distribution network The address requests the media content provided by the content provider.

a replacement unit, configured to replace the play domain name in the first content request by using the virtual domain name;

a second sending unit, configured to send the first content request after the play domain name replacement to the intercommunicating content distribution network; and distribute a service address of the network.

a third receiving unit, configured to receive a third content request that is sent by the intercommunicating content distribution network to carry the virtual domain name, where the third content request is used to locally request the media content provided by the content provider;

a second determining unit, configured to: if the third content request is sent to the local service address, determine whether the media content exists locally, and if yes, return the media to the intercommunicating content distribution network Contents; if not, searching for a uniform resource locator URL of the content provider according to the virtual domain name, and requesting the media content from the content provider according to the URL, and receiving the content sent by the content provider After the media content is described, the media content is returned to the intercommunicating content distribution network.

19. A user terminal, comprising:

a first request sending unit, configured to send a first content request to the first content distribution network, where the first content request carries a play domain name of the content provider;

The response receiving unit is configured to receive a first content request response, where the first content request response carries a virtual domain name;

a content requesting unit, configured to request the content from the second content distribution network by using the virtual domain name Media content provided by the provider.

The user terminal according to claim 19, wherein the user terminal further comprises:

a second request sending unit, configured to send a first domain name service request, where the first domain name service request carries a play domain name of the content provider;

An address receiving unit, configured to receive a service address or a routing address of the first content distribution network returned by the first content distribution network or a domain name service proxy, so that the first request sending unit distributes according to the first content The service address or route of the network sends the first content request.

The user terminal according to claim 19, wherein the content requesting unit comprises:

An address obtaining submodule, configured to acquire a service address or a routing address of the second content distribution network according to the virtual domain name;

And a content requesting submodule, configured to request the media content provided by the content provider according to the virtual domain name to a service address or a routing address of the second content distribution network.

The user terminal according to claim 19, wherein the first content request response received by the response receiving unit further carries a service address or a routing address of the second content distribution network;

The content requesting unit is configured to request, by using a virtual domain name carried in the first content request response, a media content provided by the content provider to a service address or a routing address of the second content distribution network.

23. A content distribution network, comprising:

a configuration unit, configured to configure a virtual domain name for a content provider's play domain name;

a domain name sending unit, configured to send the virtual domain name to the content provider, so that the content provider replaces the play domain name with the virtual domain name, and causes the user terminal to distribute the network to the intercommunicated content according to the virtual domain name Send a content request to get media content.

The content distribution network according to claim 23, wherein the content distribution network further comprises:

a request receiving unit, configured to receive a domain name service request sent by the user terminal, where the domain name service request carries the virtual domain name provided by the content provider to the user terminal; Acquisition unit,

a sending unit, configured to send, to the user terminal, a service address of the intercommunicating content distribution network, so that the user

Send content request