CN108513096A - Information transferring method, proxy server, terminal device and content server - Google Patents

Abstract

The invention discloses a kind of information transferring method, proxy server, terminal device and content server, the method includes：At least one visual angle corresponding with the content requests that the terminal device is sent out and its corresponding visual angle file are got from the content server side of terminal device, at least one visual angle and its corresponding visual angle file are added to cache contents；Receive the visual angle file request information that the terminal device is sent；Based on the visual angle file request information, is chosen from the cache contents and obtain the aspect file corresponding to aspect, send the aspect file to the terminal device.

Description

Information transmission method, proxy server, terminal device, and content server

technical field

The invention relates to information acquisition technology in the field of communication, in particular to an information transmission method, a proxy server, terminal equipment and a content server.

Background technique

Three-dimensional (spatial) and interactivity are important features of AR/VR. When the perspective of the terminal device is shifted, the content of different perspectives or corresponding perspectives will be obtained. Taking VR video as an example, when the user turns the angle, the user will get video files from different angles. In the AR process, when the user rotates the angle, the content server may need to recognize the real background environment, synchronize the user's perspective with the background environment based on the sensor, and synthesize a virtual image; and combine the synchronized virtual image and the real environment for rendering and composite content. Or the AR content server needs to recognize the real picture and process the virtual image accordingly so that it can be "truly" blended into the real picture.

View-based VR/AR content provision, compared with full-view content provision, has the advantage of reducing bandwidth consumption caused by such services, reducing service bandwidth requirements, and improving application universality. However, the problem is that once the AR/VR server is at a relatively long distance, the transmission of the user's perspective and the feedback of the content corresponding to the perspective will be delayed. Once the content triggered by the perspective cannot be obtained in time, it will cause bad user experience. feel.

Contents of the invention

The main purpose of the present invention is to propose an information transmission method, a proxy server, a terminal device and a content server, aiming at solving the above-mentioned problems existing in the prior art.

In order to achieve the above object, the present invention provides an information transmission method applied to a proxy server, including:

Obtaining at least one view corresponding to the content request sent by the terminal device and its corresponding view file from the content server side of the terminal device, and adding the at least one view and its corresponding view file to the cache content;

receiving the viewing angle file request information sent by the terminal device;

Based on the viewing angle file request information, select the target viewing angle file corresponding to the target viewing angle from the cache content, and send the target viewing angle file to the terminal device

The present invention provides an information transmission method, which is applied to a terminal device, and the method includes:

Send the perspective file request information to the proxy server;

Receiving that the proxy server selects from cache content based on the view file request information to obtain a target view file corresponding to the target view;

Wherein, the cache content is at least one view corresponding to the content request sent by the terminal device cached at the proxy server side, and a view file corresponding to each view.

The present invention provides an information transmission method, which is applied to a content server, and the method includes:

Based on the content request sent by the terminal device, at least one view corresponding to the content request sent by the terminal device and a view file corresponding to each view are sent to the proxy server of the terminal device.

The present invention provides a proxy server, including:

The cache acquiring unit is configured to acquire at least one view corresponding to the content request sent by the terminal device and its corresponding view file from the content server side of the terminal device, and add the at least one view and its corresponding view file to to cache content;

The terminal communication unit is configured to receive the viewing angle file request information sent by the terminal device; based on the viewing angle file request information, select the target viewing angle file corresponding to the target viewing angle from the cache content, and send the The target view file is sent to the terminal device.

The present invention provides a terminal device, including:

A file request unit, configured to send the viewing angle file request information to the proxy server;

The file acquisition unit is configured to receive the proxy server to select the target view file corresponding to the target view from the cache content based on the view file request information;

Wherein, the cache content is at least one view corresponding to the content request sent by the terminal device cached at the proxy server side, and a view file corresponding to each view.

The present invention provides a content server, including:

The cache sending unit is configured to send at least one view corresponding to the content request sent by the terminal device to the proxy server of the terminal device based on the content request sent by the terminal device, and a view file corresponding to each view.

An information transmission method, a proxy server, a terminal device, and a content server proposed by the present invention can have the proxy server cache the viewing angle and its corresponding viewing angle file in advance, and then the proxy server can respond to the viewing angle file request information of the terminal device as the The terminal device feeds back the target view file corresponding to the target view. In this way, it is possible to quickly respond to the user's business needs, reduce the time delay for the terminal device to obtain the view file, and avoid the user's discomfort when using the terminal device.

Description of drawings

FIG. 1 is a schematic flow diagram 1 of an information transmission method according to an embodiment of the present invention;

FIG. 2 is a schematic flow diagram 2 of an information transmission method according to an embodiment of the present invention;

FIG. 3 is a schematic flow diagram 3 of an information transmission method according to an embodiment of the present invention;

FIG. 4 is a schematic flow diagram 4 of an information transmission method according to an embodiment of the present invention;

FIG. 5 is a schematic flow diagram 5 of an information transmission method according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of the composition and structure of a proxy server according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a composition structure of a terminal device according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of the composition and structure of the content server according to the embodiment of the present invention.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Embodiment one,

An embodiment of the present invention provides an information transmission method, which is applied to a proxy server, as shown in Figure 1, including:

Step 101: Obtain at least one view corresponding to the content request sent by the terminal device and its corresponding view file from the content server side of the terminal device, and add the at least one view and its corresponding view file to the cache content ;

Step 102: Receive the viewing angle file request information sent by the terminal device;

Step 103: Based on the view file request information, select a target view file corresponding to the target view from the cached content, and send the target view file to the terminal device.

In this embodiment, the terminal device may specifically be a terminal device capable of running VR/AR, and the content server may also be a content server capable of providing VR/AR.

Before the user's perspective of the terminal device changes, the proxy server interacts with the remote content server to pre-cache the corresponding perspective file; the cached perspective and its corresponding perspective file can be the location where the user of the terminal device initially accesses the system. The angle of view near the current angle of view and its corresponding angle of view file; or, it may be at least one angle of view commonly used by the user and its corresponding angle of view file predicted by the proxy server according to the mastered user's angle of view behavior habits; or, it may also be the proxy server At least one preset viewing angle other than the current viewing angle of the user of the terminal device and its corresponding viewing angle file;

When the user's perspective of the terminal device changes, the terminal device sends a new perspective file request information to the proxy server, and the proxy server distributes the perspective file corresponding to the perspective cached in advance to the user based on the perspective file request information.

Specifically, the acquisition of cached content from the content server side of the terminal device includes:

From the content server side of the terminal device, obtain all the views corresponding to the content request sent by the terminal device, and the view file corresponding to each view; wherein, the content request may include content with at least one dimension, for example, At least one of information such as a current location and a current viewing angle of the terminal device may be included. It can be understood that the content to be obtained by the terminal device can be determined according to the current location in the content request, and all the viewing angles at the location and the viewing angle files corresponding to each viewing angle can be obtained directly according to the corresponding location.

or,

From the content server side of the terminal device, the commonly used viewing angles of the terminal device and their corresponding viewing angle files are obtained; it should be understood that this processing method is based on the fact that the terminal device already has a commonly used viewing angle, or the proxy server at least obtains the terminal device It can only be realized on the basis of at least one behavior record of the terminal device; based on at least one behavior record of the terminal device, it can include the perspectives of the N requesting perspective files that the terminal device usually obtains, and according to such analysis, the common perspective of the terminal device can be obtained .

or,

From the content server side of the terminal device, the viewing angle file corresponding to the current viewing angle of the terminal device is obtained, and at least one related viewing angle of the current viewing angle and its corresponding viewing angle file are obtained; wherein, the related viewing angle representation is the same as the The angle difference between the current angles of view is smaller than the preset threshold value. The preset threshold value can be set according to the actual situation, for example, it can be within 30 degrees left and right, or it can also be included within 30 degrees up and down.

It should be noted that the content that can be stored on the terminal device side is at least one viewing angle and its corresponding link information;

When a terminal device initiates a view file request message, it may include a specific view, or first determine its corresponding connection information according to the view, and then directly send a link containing the view (or view file) to the proxy server information as the view file request information;

Correspondingly, the service server can select the target view file from its own cache content based on the view in the view server;

Alternatively, the service server may directly acquire the corresponding target view file based on the view link information in the view file request information.

Based on the target viewing angle in the viewing angle file request information, selecting the target viewing angle file corresponding to the target viewing angle from the cache content, and sending the target viewing angle file to the terminal device, the method further include:

If the proxy server does not store all the angles and corresponding files corresponding to the content request sent by the terminal device, obtain at least one new angle and the angle file corresponding to each new angle from the content server ; Cache content updated based on the new at least one view and its corresponding view file.

or

If the proxy server does not store all the viewing angle files corresponding to the viewing angle file request information sent by the terminal device, obtain at least one new viewing angle file from the content server; Cache content.

That is to say, while performing the aforementioned steps 102-103, the proxy server may continue to interact with the content server to obtain updated cached content according to the user's perspective or based on a missing perspective file.

Specifically, if the proxy server does not store all the views corresponding to the content request sent by the terminal device and their corresponding files, at least one new view and each new view may be obtained from the content server The corresponding perspective files include:

Based on the angle of view corresponding to the received angle of view file request information, predict at least one angle of view to be acquired by the terminal device to obtain at least one predicted angle of view;

Judging whether the at least one predicted viewing angle and its corresponding viewing angle file are stored in the existing cache content;

If not saved, at least one new viewing angle and a viewing angle file corresponding to each new viewing angle are acquired from the content server side based on the at least one predicted viewing angle.

Furthermore, this embodiment can also be applied to transmission processing of multi-dimensional content. In the process of acquiring content by the terminal, based on the pre-acquired terminal behavior data or predicted terminal behavior data, more dimensional content of information that the terminal will use in the next step is extracted and stored in the proxy device. Once the terminal needs it, the content will be delivered to the terminal.

Wherein, the prediction method can be as follows: if the proxy server records the user's historical behavior; the user's preferred content dimension 1 in the past request, the trajectory is 1->3->2, then it is relatively easy to determine the prediction Cache content dimension, for example, if the current user looks at dimension 1, then before the user makes further requests, pre-cache content 3; the predicted content may be pre-cache content 3, or pre-cache content 3 and 2. It may depend on the comprehensive judgment of the user's reading speed and the user's available transmission bandwidth.

Further, the method for determining whether the proxy server obtains all the views and view files corresponding to the content request from the content server, or only obtains part of the views and the corresponding view files may be as follows: at least based on the attribute information of the terminal device, determining the number of views contained in the cached content obtained from the content server and the number of corresponding view files;

Wherein, the attribute information includes at least one of the following information:

The viewing angle refresh rate in the terminal device;

The available transmission bandwidth of the terminal device;

The maximum transmission bandwidth of the terminal device.

Wherein, regarding the refreshing speed of the viewing angle in the terminal device, it can be determined by the user reading speed, for example, according to the speed at which the user changes the viewing angle, and the available transmission bandwidth of the user can be obtained through the attribute information of the terminal device obtained when the terminal device accesses the system, Or the network attribute is determined. The attribute information about the terminal device can be the maximum access bandwidth of the terminal device, the network attribute can be the network transmission bandwidth, etc.; further, the faster the user changes the viewing angle, the more viewing angle files can be pre-cached. In addition, the terminal The faster the corresponding bandwidth of the device, the more view files can be pre-cached.

Based on the aforementioned scheme, one of the implementation processes is shown in Figure 2, and the specific description is as follows:

1. The terminal device initiates a content request to the content server; wherein, the content request may include multiple dimensions of content, for example, it may include at least one of the following: current angle information, current location information, etc.; or, it can be understood as requesting The request information sent by the content server to establish a connection;

2. The content server and the proxy server communicate and synchronize the url' information of different perspective files on the proxy server side and the angle relationship between them;

Specifically, the url' information may be generated by the content server and notify the proxy server to configure, or may be generated by the proxy server, and the server initiates a request to the proxy server and obtains the url' information of the corresponding service on the proxy server side. Wherein, if generated by the proxy server and obtained from the content server, the proxy server may send a request for URL information to be obtained to the content server after the content server sends a notification that the terminal device has initiated a content request to the proxy server.

Perhaps in parallel, the content server pushes the initial content to the proxy server. In particular, if the content server has the user’s perspective behavior information, it can select some perspective files for initial transmission according to the information it has; otherwise, if the content server does not With the viewing angle behavior information of the user, the content server may need to transmit a more comprehensive viewing angle file to the proxy server side. Or, when the bandwidth is relatively insufficient, the service push is postponed, that is, after receiving the request information of the user's perspective, the push of the perspective file is started, and the business push of the adjacent perspective of the user's perspective is carried out;

Wherein, the configuration of the proxy server needs to unify the content requested by the user with the content server. At the position of the proxy server, the proxy server needs to be able to replace the user to request content with the content server and cache the content; when the user actually makes a content request, the Content distribution users, and further ask the content server to request the content that the user requests or may request in the next step, but has not been stored in the proxy server;

The generation of configuration can be as follows: the server can tell the proxy server, the dimension corresponding to the multi-dimensional content and the location of the content file of each dimension are decided by the proxy server, and the content file of each dimension of the multi-dimensional content is in the corresponding position of the proxy server;

Viewpoint behavior information can be understood as each viewing angle acquisition cycle, the obtained viewing angle; for example, 1, viewing angle trajectory 1->3->2->..., and the cycle and time of viewing angle trajectory transformation.

It should be noted that the content request does not necessarily carry the perspective. The traditional process is to start requesting the perspective after the content request is successful; before the formal perspective request, based on the above-mentioned perspective behavior information, first cache some content.

3. The content server returns to the terminal device the url' information corresponding to all view files on the proxy server side, as well as the angle relationship between them;

4. Based on the received view file url' information, the terminal device selects the starting url' and requests the content file of the corresponding view; the terminal receives the view configuration file, such as what view corresponds to what url; based on this information , the terminal selects the corresponding url based on its own perspective, and makes a request

5. The proxy server returns the perspective file url' information requested by the terminal device;

6. The terminal device determines the new perspective file url' information according to the new perspective as the user turns the head, and initiates a content request;

7. The proxy server returns the content of the new viewing angle according to the updated viewing angle of the terminal device.

It should be pointed out that during steps 4-7, the content server may receive feedback from the proxy server on the viewing angle behavior information of the terminal, such as the terminal viewing angle request information, and based on the obtained information or not obtained information, continue to push the proxy server side View files until the content transmission is complete (that is, full view files are included, or all files needed by the user are included based on user behavior, or content files within a certain range near the user's current view angle are included).

In the foregoing process, the content server and the proxy server establish a considerable trust relationship. The content server actively pushes services to the proxy server, and the proxy server supports optimization of content distribution. This process is very suitable for the scenario where the content service provider builds its own proxy server, or the content service provider and the proxy server establish a solid contract relationship.

Note: If the corresponding content file information has been stored on the proxy server, the dotted line interaction shown in Figure 2 is no longer needed.

Fig. 3 is another specific implementation of this embodiment, which is different from the solution shown in Fig. 2 in that before obtaining the cached content from the content server side of the terminal device, the method further includes: obtaining The content request sent by the terminal device to the content server; based on the content request, request the content server to acquire cached content. The specific instructions are as follows:

1. The terminal device initiates a content request to the content server;

2. The proxy server identifies or intercepts the content request of the terminal device, and initiates the content request to the content server by itself;

3. The content server feeds back the urls of all view files and the relationship with the corresponding view angles to the proxy server;

The difference from the process shown in Figure 2 is that the proxy server and the server in the previous process are in a cooperative relationship, and the proxy server is suitable for deployment by the content server or the two have an agreement relationship; this process may be a neutral proxy server.

4. Based on the information fed back by the content server, the proxy server generates the local viewing angle file url' and the relationship with the corresponding viewing angle, and distributes this information to the terminal device;

That is to say, encapsulating the view and the link information corresponding to the view file to obtain encapsulation information, and sending the encapsulation information to the terminal device;

or,

Encapsulating the view and the link information corresponding to the view file to obtain encapsulation information, and sending the encapsulation information to the content server.

Specifically, the processing method of this step is that the proxy server encapsulates the data packet in a certain way and directly feeds back to the user; or, this step is further divided into two steps. First, the proxy server will determine the proxy side url' and the corresponding The angle relationship is fed back to the server, and then the proxy server feeds back to the terminal device;

5. Based on the information fed back by the proxy server, the terminal device selects the starting url' and initiates a content request;

6. The proxy server returns the viewing angle content requested by the terminal device;

During steps 4-6, the proxy server requests the content server for the initial content (that is, the content corresponding to the current viewing angle corresponding to the content request, or the content corresponding to the current location), especially if the proxy server has the user's viewing angle behavior information, Then, according to the information it possesses, some view files can be selected for initial transmission. Otherwise, the proxy server may need to request to transmit the full-view file to the proxy server side. Or, in the case of relatively insufficient bandwidth, the service request is postponed, that is, after receiving the user's view request information, the request for the view file and the service request for the adjacent view of the user's view are started; this process continues until the user ends the service , or until the proxy server obtains the complete content (that is, contains the full-view file, or contains all the files needed by the user based on user behavior judgment, or contains a certain range of content files near the user's current view).

7. When the terminal device turns its head, it determines the new perspective file url' information according to the new perspective, and initiates a content request;

8. The proxy server returns the content of the new viewing angle according to the updated viewing angle of the terminal device.

In the processing method provided in Figure 3, the process involved is applicable to the fact that the proxy server and the terminal device have established a certain trust relationship and can obtain the request content of the terminal device. Specifically, the terminal device actively discloses the content of the request to the A proxy server, or a proxy server has the ability to resolve such requests from users. This process is very applicable to the scenario where the network operator provides the proxy server.

Further, if the proxy server is deployed by the network operator, the proxy server has sufficient network information. Then the proxy server can choose to cache more or less user content according to the difference in the load status of the node network at different times. For example, during the initial content application, if the network status is relatively idle, the proxy server can help the user apply for more content at one time, and cache the content that the user does not need temporarily.

Note: If the corresponding content file information has been stored on the proxy server, the dotted line interaction shown in Figure 3 is no longer needed.

Fig. 4 is yet another processing flow, which is different from Fig. 2 and Fig. 3 in that, before obtaining the cached content from the content server side of the terminal device, the method further includes: negotiating with the terminal device , obtain the format of the interactive signaling; receive the content request sent by the terminal device based on the format of the interactive signaling; based on the content request, request the content server side to obtain cached content; wherein, the process of negotiation , including through the standardization of the network, allowing users to send network-recognizable signaling to inform the network-oriented proxy server deployed on the network to make corresponding content requests;

In addition, in step 1, the negotiated request content includes: based on the signaling format, that is, fill in the corresponding information, such as the content url, encapsulate it through signaling, and transmit it to the proxy server.

The proposal is applicable to all content distribution and content optimization involving angle interaction or similar angle interaction.

The processing manner of the remaining steps in FIG. 4 is the same as that in FIG. 3 , and will not be repeated here.

It can be seen that by adopting the solution provided in this embodiment, the proxy server can pre-cache the view angle and the corresponding view file, and then the proxy server can respond to the view file request information of the terminal device to feed back the corresponding view file of the target view to the terminal device. Target view file. In this way, it is possible to quickly respond to the user's business needs, reduce the time delay for the terminal device to obtain the view file, and avoid the user's discomfort when using the terminal device.

Embodiment two,

This embodiment provides an information transmission method, which is applied to a terminal device. As shown in FIG. 5, the method includes:

Step 501: Sending viewing angle file request information to the proxy server;

Step 502: receiving that the proxy server selects the target view file corresponding to the target view from the cache content based on the view file request information;

Wherein, the cache content is at least one view corresponding to the content request sent by the terminal device cached at the proxy server side, and a view file corresponding to each view.

In this embodiment, the terminal device may specifically be a terminal device capable of running VR/AR, and the content server may also be a content server capable of providing VR/AR.

Before the user's perspective of the terminal device changes, the proxy server interacts with the remote content server to pre-cache the corresponding perspective file; the cached perspective and its corresponding perspective file can be the location where the user of the terminal device initially accesses the system. The angle of view near the current angle of view and its corresponding angle of view file; or, it may be at least one angle of view commonly used by the user and its corresponding angle of view file predicted by the proxy server according to the mastered user's angle of view behavior habits; or, it may also be the proxy server At least one preset viewing angle other than the current viewing angle of the user of the terminal device and its corresponding viewing angle file;

When the user's perspective of the terminal device changes, the terminal device sends a new perspective file request information to the proxy server, and the proxy server distributes the perspective file corresponding to the perspective cached in advance to the user based on the perspective file request information.

Specifically, the acquisition of cached content from the content server side of the terminal device includes:

From the content server side of the terminal device, obtain all the views corresponding to the content request sent by the terminal device, and the view file corresponding to each view; wherein, the content request may include content with at least one dimension, for example, At least one of information such as a current location and a current viewing angle of the terminal device may be included. It can be understood that the content to be obtained by the terminal device can be determined according to the current location in the content request, and all the viewing angles at the location and the viewing angle files corresponding to each viewing angle can be obtained directly according to the corresponding location.

or,

From the content server side of the terminal device, the commonly used viewing angles of the terminal device and their corresponding viewing angle files are obtained; it should be understood that this processing method is based on the fact that the terminal device already has a commonly used viewing angle, or the proxy server at least obtains the terminal device It can only be realized on the basis of at least one behavior record of the terminal device; based on at least one behavior record of the terminal device, it can include the perspectives of the N requesting perspective files that the terminal device usually obtains, and according to such analysis, the common perspective of the terminal device is obtained .

or,

From the content server side of the terminal device, the viewing angle file corresponding to the current viewing angle of the terminal device is obtained, and at least one related viewing angle of the current viewing angle and its corresponding viewing angle file are obtained; wherein, the related viewing angle representation is the same as the The angle difference between the current angles of view is smaller than the preset threshold value. The preset threshold value can be set according to the actual situation, for example, it can be within 30 degrees left and right, or it can also be included within 30 degrees up and down.

It should be noted that the content that can be stored on the terminal device side is at least one viewing angle and its corresponding link information;

When a terminal device initiates a view file request message, it may include a specific view, or first determine its corresponding connection information according to the view, and then directly send a link containing the view (or view file) to the proxy server information as the view file request information;

Correspondingly, the service server can select the target view file from its own cache content based on the view in the view server;

Alternatively, the service server may directly acquire the corresponding target view file based on the view link information in the view file request information.

Based on the target viewing angle in the viewing angle file request information, selecting the target viewing angle file corresponding to the target viewing angle from the cache content, and sending the target viewing angle file to the terminal device, the method further include:

If the proxy server does not store all the angles and corresponding files corresponding to the content request sent by the terminal device, obtain at least one new angle and the angle file corresponding to each new angle from the content server ;

The updated cache content based on the at least one new view angle and its corresponding view file.

That is to say, while performing the aforementioned steps 102-103, the proxy server may continue to interact with the content server to obtain updated cached content according to the user's perspective or based on a missing perspective file.

Specifically, if the proxy server does not store all the views corresponding to the content request sent by the terminal device and their corresponding files, at least one new view and each new view may be obtained from the content server The corresponding perspective files include:

Based on the angle of view corresponding to the received angle of view file request information, predict at least one angle of view to be acquired by the terminal device to obtain at least one predicted angle of view;

Judging whether the at least one predicted viewing angle and its corresponding viewing angle file are stored in the existing cache content;

If not saved, at least one new viewing angle and a viewing angle file corresponding to each new viewing angle are acquired from the content server side based on the at least one predicted viewing angle.

Furthermore, this embodiment can also be applied to transmission processing of multi-dimensional content. In the process of acquiring content by the terminal, based on the pre-acquired terminal behavior data or predicted terminal behavior data, more dimensional content of information that the terminal will use in the next step is extracted and stored in the proxy device. Once the terminal needs it, the content will be delivered to the terminal.

Wherein, the prediction method can be as follows: if the proxy server records the user's historical behavior; the user's preferred content dimension 1 in the past request, the trajectory is 1->3->2, then it is relatively easy to determine the prediction Cache content dimension, for example, if the current user looks at dimension 1, then before the user makes further requests, pre-cache content 3; the predicted content may be pre-cache content 3, or pre-cache content 3 and 2. It may depend on the comprehensive judgment of the user's reading speed and the user's available transmission bandwidth.

Further, the method for determining whether the proxy server obtains all the views and view files corresponding to the content request from the content server, or only obtains part of the views and the corresponding view files may be as follows: at least based on the attribute information of the terminal device, determining the number of views contained in the cached content obtained from the content server and the number of corresponding view files;

Wherein, the attribute information includes at least one of the following information:

The viewing angle refresh rate in the terminal device;

The available transmission bandwidth of the terminal device;

The maximum transmission bandwidth of the terminal device.

Wherein, regarding the refreshing speed of the viewing angle in the terminal device, it can be determined by the user reading speed, for example, according to the speed at which the user changes the viewing angle, and the available transmission bandwidth of the user can be obtained through the attribute information of the terminal device obtained when the terminal device accesses the system, Or the network attribute is determined. The attribute information about the terminal device can be the maximum access bandwidth of the terminal device, the network attribute can be the network transmission bandwidth, etc.; further, the faster the user changes the viewing angle, the more viewing angle files can be pre-cached. In addition, the terminal The faster the corresponding bandwidth of the device, the more view files can be pre-cached.

Based on the foregoing solution, before sending the viewing angle file request information to the proxy server, the method further includes: sending a content request to the content server; receiving at least one viewing angle cached on the proxy server side fed back by the content server, Or, receiving at least one viewing angle and its link information fed back by the content server and cached on the proxy server side. Figure 2 shows one of the implementation processes, and the details are as follows:

1. The terminal device initiates a content request to the content server; wherein, the content request may include multiple dimensions of content, for example, it may include at least one of the following: current angle information, current location information, etc.; or, it can be understood as requesting The request information sent by the content server to establish a connection;

2. The content server and the proxy server communicate and synchronize the url' information of different perspective files on the proxy server side and the angle relationship between them;

Specifically, the url' information may be generated by the content server and notify the proxy server to configure, or may be generated by the proxy server, and the server initiates a request to the proxy server and obtains the url' information of the corresponding service on the proxy server side. Wherein, if generated by the proxy server and obtained from the content server, the proxy server may send a request for URL information to be obtained to the content server after the content server sends a notification that the terminal device has initiated a content request to the proxy server.

Perhaps in parallel, the content server pushes the initial content to the proxy server. In particular, if the content server has the user’s perspective behavior information, it can select some perspective files for initial transmission according to the information it has; otherwise, if the content server does not With the viewing angle behavior information of the user, the content server may need to transmit a more comprehensive viewing angle file to the proxy server side. Or, when the bandwidth is relatively insufficient, the service push is postponed, that is, after receiving the request information of the user's perspective, the push of the perspective file is started, and the business push of the adjacent perspective of the user's perspective is carried out;

Wherein, the configuration of the proxy server needs to unify the content requested by the user with the content server. At the position of the proxy server, the proxy server needs to be able to replace the user to request content with the content server and cache the content; when the user actually makes a content request, the Content distribution users, and further ask the content server to request the content that the user requests or may request in the next step, but has not been stored in the proxy server;

The generation of configuration can be as follows: the server can tell the proxy server, the dimension corresponding to the multi-dimensional content and the location of the content file of each dimension are decided by the proxy server, and the content file of each dimension of the multi-dimensional content is in the corresponding position of the proxy server;

Viewpoint behavior information can be understood as each viewing angle acquisition cycle, the obtained viewing angle; for example, 1, viewing angle trajectory 1->3->2->..., and the cycle and time of viewing angle trajectory transformation.

It should be noted that the content request does not necessarily carry the perspective. The traditional process is to start requesting the perspective after the content request is successful; before the formal perspective request, based on the above-mentioned perspective behavior information, first cache some content.

3. The content server returns to the terminal device the url' information corresponding to all view files on the proxy server side, as well as the angle relationship between them;

4. Based on the received view file url' information, the terminal device selects the starting url' and requests the content file of the corresponding view; the terminal receives the view configuration file, such as what view corresponds to what url; based on this information , the terminal selects the corresponding url based on its own perspective, and makes a request

5. The proxy server returns the perspective file url' information requested by the terminal device;

6. The terminal device determines the new perspective file url' information according to the new perspective as the user turns the head, and initiates a content request;

7. The proxy server returns the content of the new viewing angle according to the updated viewing angle of the terminal device.

It should be pointed out that during Step 4-7, the content server may receive the viewing angle behavior information of the terminal fed back from the proxy server, such as the terminal viewing angle request information, and based on the obtained information or not obtain the information, continue to push the proxy server side View files until the content transmission is complete (that is, full view files are included, or all files needed by the user are included based on user behavior, or content files within a certain range near the user's current view angle are included).

In the foregoing process, the content server and the proxy server establish a considerable trust relationship. The content server actively pushes services to the proxy server, and the proxy server supports optimization of content distribution. This process is very suitable for the scenario where the content service provider builds its own proxy server, or the content service provider and the proxy server establish a solid contract relationship.

Note: If the corresponding content file information has been stored on the proxy server, the dotted line interaction shown in Figure 2 is no longer needed.

Fig. 3 is another specific implementation of this embodiment, which is different from the scheme shown in Fig. 2 in that, before sending the viewing angle file request information to the proxy server, a content request is sent to the content server; At least one viewing angle cached by the proxy server fed back by the proxy server, or at least one viewing angle cached on the proxy server side fed back by the content server and its link information received. The specific instructions are as follows:

1. The terminal device initiates a content request to the content server;

2. The proxy server identifies or intercepts the content request of the terminal device, and initiates the content request to the content server by itself;

3. The content server feeds back the urls of all view files and the relationship with the corresponding view angles to the proxy server;

The difference from the process shown in Figure 2 is that the proxy server and the server in the previous process are in a cooperative relationship, and the proxy server is suitable for deployment by the content server or the two have an agreement relationship; this process may be a neutral proxy server.

4. Based on the information fed back by the content server, the proxy server generates the local viewing angle file url' and the relationship with the corresponding viewing angle, and distributes this information to the terminal device;

That is to say, encapsulating the view and the link information corresponding to the view file to obtain encapsulation information, and sending the encapsulation information to the terminal device;

or,

Encapsulating the view and the link information corresponding to the view file to obtain encapsulation information, and sending the encapsulation information to the content server.

Specifically, the processing method of this step is that the proxy server encapsulates the data packet in a certain way and directly feeds back to the user; or, this step is further divided into two steps. First, the proxy server will determine the proxy side url' and the corresponding The angle relationship is fed back to the server, and then the proxy server feeds back to the terminal device;

5. Based on the information fed back by the proxy server, the terminal device selects the starting url' and initiates a content request;

6. The proxy server returns the viewing angle content requested by the terminal device;

During steps 4-6, the proxy server requests the content server for the initial content (that is, the content corresponding to the current viewing angle corresponding to the content request, or the content corresponding to the current location), especially if the proxy server has the user's viewing angle behavior information, Then, according to the information it possesses, some view files can be selected for initial transmission. Otherwise, the proxy server may need to request to transmit the full-view file to the proxy server side. Or, in the case of relatively insufficient bandwidth, the service request is postponed, that is, after receiving the user's view request information, the request for the view file and the service request for the adjacent view of the user's view are started; this process continues until the user ends the service , or until the proxy server obtains the complete content (that is, contains the full-view file, or contains all the files needed by the user based on user behavior judgment, or contains a certain range of content files near the user's current view).

7. When the terminal device turns its head, it determines the new perspective file url' information according to the new perspective, and initiates a content request;

8. The proxy server returns the content of the new viewing angle according to the updated viewing angle of the terminal device.

In the processing method provided in Figure 3, the process involved is applicable to the fact that the proxy server and the terminal device have established a certain trust relationship and can obtain the request content of the terminal device. Specifically, the terminal device actively discloses the content of the request to the A proxy server, or a proxy server has the ability to resolve such requests from users. This process is very applicable to the scenario where the network operator provides the proxy server.

Further, if the proxy server is deployed by the network operator, the proxy server has sufficient network information. Then the proxy server can choose to cache more or less user content according to the difference in the load status of the node network at different times. For example, during the initial content application, if the network status is relatively idle, the proxy server can help the user apply for more content at one time, and cache the content that the user does not need temporarily.

Note: If the corresponding content file information has been stored on the proxy server, the dotted line interaction shown in Figure 3 is no longer needed.

Fig. 4 is yet another processing flow, which is different from Fig. 2 and Fig. 3 in that, before sending the viewing angle file request information to the proxy server, the method further includes: negotiating with the proxy server to obtain an interactive The format of the signaling; sending a content request to the proxy server based on the format of the interactive signaling; receiving at least one viewing angle of its cache fed back by the proxy server, or receiving the feedback from the content server in the At least one perspective and its link information cached on the proxy server side.

Among them, the negotiation process, including the standardization of the network, allows users to send network-recognizable signaling to inform the network-oriented proxy server deployed on the network to request corresponding content;

In addition, in step 1, the negotiated request content includes: based on the signaling format, that is, fill in the corresponding information, such as the content url, encapsulate it through signaling, and transmit it to the proxy server.

The proposal is applicable to all content distribution and content optimization involving angle interaction or similar angle interaction.

The processing manner of the remaining steps in FIG. 4 is the same as that in FIG. 3 , and will not be repeated here.

It can be seen that by adopting the solution provided in this embodiment, the proxy server can pre-cache the view angle and the corresponding view file, and then the proxy server can respond to the view file request information of the terminal device to feed back the corresponding view file for the terminal device. Target view file. In this way, it is possible to quickly respond to the user's business needs, reduce the time delay for the terminal device to obtain the view file, and avoid the user's discomfort when using the terminal device.

Embodiment three,

An embodiment of the present invention provides an information transmission method applied to a content server, including:

Based on the content request sent by the terminal device, the cache content is sent to the proxy server of the terminal device; wherein the cache content is at least one view corresponding to the content request sent by the terminal device, and a view file corresponding to each view.

In this embodiment, the terminal device may specifically be a terminal device capable of running VR/AR, and the content server may also be a content server capable of providing VR/AR.

Before the user's perspective of the terminal device changes, the proxy server interacts with the remote content server to pre-cache the corresponding perspective file; the cached perspective and its corresponding perspective file can be the location where the user of the terminal device initially accesses the system. The angle of view near the current angle of view and its corresponding angle of view file; or, it may be at least one angle of view commonly used by the user and its corresponding angle of view file predicted by the proxy server according to the mastered user's angle of view behavior habits; or, it may also be the proxy server At least one preset viewing angle other than the current viewing angle of the user of the terminal device and its corresponding viewing angle file;

When the user's perspective of the terminal device changes, the terminal device sends a new perspective file request information to the proxy server, and the proxy server distributes the perspective file corresponding to the perspective cached in advance to the user based on the perspective file request information.

Specifically, the sending cached content to the proxy server of the terminal device includes:

To the content server side, send all viewing angles corresponding to the content request and the viewing angle file corresponding to each viewing angle; wherein, the content request may include content with at least one dimension, for example, may include a terminal device At least one of information such as the current position and the current viewing angle. It can be understood that the content to be obtained by the terminal device can be determined according to the current location in the content request, and all the viewing angles at the location and the viewing angle files corresponding to each viewing angle can be obtained directly according to the corresponding location.

or,

sending the commonly used viewing angles of the terminal device and corresponding viewing angle files to the content server side;

It should be understood that this processing method can only be realized on the basis that the terminal device has a common perspective, or the proxy server has at least obtained at least one behavior record of the terminal device; based on the at least one behavior record of the terminal device may include Usually, what are the viewing angles of the N requested viewing angle files are obtained, and the commonly used viewing angles of the terminal device are obtained according to such analysis.

or,

To the content server side, send a viewing angle file corresponding to the current viewing angle of the terminal device, and obtain at least one related viewing angle of the current viewing angle and its corresponding viewing angle file; The angle difference between them is smaller than the preset threshold value. The preset threshold value can be set according to the actual situation, for example, it can be within 30 degrees left and right, or it can also be included within 30 degrees up and down.

It should be noted that the content that can be stored on the terminal device side is at least one viewing angle and its corresponding link information;

When a terminal device initiates a view file request message, it may include a specific view, or first determine its corresponding connection information according to the view, and then directly send a link containing the view (or view file) to the proxy server information as the view file request information;

Correspondingly, the service server can select the target view file from its own cache content based on the view in the view server;

Alternatively, the service server may directly acquire the corresponding target view file based on the view link information in the view file request information.

The method further includes: sending at least one new perspective and a perspective file corresponding to each new perspective to the proxy server, wherein the at least one new perspective and its corresponding perspective file are used to update the agent The server's cache content.

That is to say, the proxy server may continue to interact with the content server to obtain updated cached content according to the user's perspective or based on a missing perspective file.

Specifically, if the proxy server does not store all the views corresponding to the content request sent by the terminal device and their corresponding files, at least one new view and each new view may be obtained from the content server The corresponding perspective files include:

Based on the angle of view corresponding to the received angle of view file request information, predict at least one angle of view to be acquired by the terminal device to obtain at least one predicted angle of view;

Judging whether the at least one predicted viewing angle and its corresponding viewing angle file are stored in the existing cache content;

If not saved, at least one new viewing angle and a viewing angle file corresponding to each new viewing angle are acquired from the content server side based on the at least one predicted viewing angle.

Based on the aforementioned scheme, one of the implementation processes is shown in Figure 2, and the specific description is as follows:

1. The terminal device initiates a content request to the content server; wherein, the content request may include multiple dimensions of content, for example, it may include at least one of the following: current angle information, current location information, etc.; or, it can be understood as requesting The request information sent by the content server to establish a connection;

2. The content server and the proxy server communicate and synchronize the url' information of different perspective files on the proxy server side and the angle relationship between them;

Specifically, the url' information may be generated by the content server and notify the proxy server to configure, or may be generated by the proxy server, and the server initiates a request to the proxy server and obtains the url' information of the corresponding service on the proxy server side. Wherein, if generated by the proxy server and obtained from the content server, the proxy server may send a request for URL information to be obtained to the content server after the content server sends a notification that the terminal device has initiated a content request to the proxy server.

Perhaps in parallel, the content server pushes the initial content to the proxy server. In particular, if the content server has the user’s perspective behavior information, it can select some perspective files for initial transmission according to the information it has; otherwise, if the content server does not With the viewing angle behavior information of the user, the content server may need to transmit a more comprehensive viewing angle file to the proxy server side. Or, when the bandwidth is relatively insufficient, the service push is postponed, that is, after receiving the request information of the user's perspective, the push of the perspective file is started, and the business push of the adjacent perspective of the user's perspective is carried out;

Wherein, the configuration of the proxy server needs to unify the content requested by the user with the content server. At the position of the proxy server, the proxy server needs to be able to replace the user to request content with the content server and cache the content; when the user actually makes a content request, the Content distribution users, and further ask the content server to request the content that the user requests or may request in the next step, but has not been stored in the proxy server;

The generation of configuration can be as follows: the server can tell the proxy server, the dimension corresponding to the multi-dimensional content and the location of the content file of each dimension are decided by the proxy server, and the content file of each dimension of the multi-dimensional content is in the corresponding position of the proxy server;

Viewpoint behavior information can be understood as each viewing angle acquisition cycle, the obtained viewing angle; for example, 1, viewing angle trajectory 1->3->2->..., and the cycle and time of viewing angle trajectory transformation.

It should be noted that the content request does not necessarily carry the perspective. The traditional process is to start requesting the perspective after the content request is successful; before the formal perspective request, based on the above-mentioned perspective behavior information, first cache some content.

3. The content server returns to the terminal device the url' information corresponding to all view files on the proxy server side, as well as the angle relationship between them;

4. Based on the received view file url' information, the terminal device selects the starting url' and requests the content file of the corresponding view; the terminal receives the view configuration file, such as what view corresponds to what url; based on this information , the terminal selects the corresponding url based on its own perspective, and makes a request

5. The proxy server returns the perspective file url' information requested by the terminal device;

6. The terminal device determines the new perspective file url' information according to the new perspective as the user turns the head, and initiates a content request;

7. The proxy server returns the content of the new viewing angle according to the updated viewing angle of the terminal device.

It should be pointed out that during Step 4-7, the content server may receive the viewing angle behavior information of the terminal fed back from the proxy server, such as the terminal viewing angle request information, and based on the obtained information or not obtain the information, continue to push the proxy server side View files until the content transmission is complete (that is, full view files are included, or all files needed by the user are included based on user behavior, or content files within a certain range near the user's current view angle are included).

In the foregoing process, the content server and the proxy server establish a considerable trust relationship. The content server actively pushes services to the proxy server, and the proxy server supports optimization of content distribution. This process is very suitable for the scenario where the content service provider builds its own proxy server, or the content service provider and the proxy server establish a solid contract relationship.

Note: If the corresponding content file information has been stored on the proxy server, the dotted line interaction shown in Figure 2 is no longer needed.

Fig. 3 is another specific implementation of this embodiment, which is different from the solution shown in Fig. 2 in that before obtaining the cached content from the content server side of the terminal device, the method further includes: obtaining The content request sent by the terminal device to the content server; based on the content request, request the content server to acquire cached content. The specific instructions are as follows:

1. The terminal device initiates a content request to the content server;

2. The proxy server identifies or intercepts the content request of the terminal device, and initiates the content request to the content server by itself;

3. The content server feeds back the urls of all view files and the relationship with the corresponding view angles to the proxy server;

The difference from the process shown in Figure 2 is that the proxy server and the server in the previous process are in a cooperative relationship, and the proxy server is suitable for deployment by the content server or the two have an agreement relationship; this process may be a neutral proxy server.

4. Based on the information fed back by the content server, the proxy server generates the local viewing angle file url' and the relationship with the corresponding viewing angle, and distributes this information to the terminal device;

That is to say, encapsulating the view and the link information corresponding to the view file to obtain encapsulation information, and sending the encapsulation information to the terminal device;

or,

Encapsulating the view and the link information corresponding to the view file to obtain encapsulation information, and sending the encapsulation information to the content server.

Specifically, the processing method of this step is that the proxy server encapsulates the data packet in a certain way and directly feeds back to the user; or, this step is further divided into two steps. First, the proxy server will determine the proxy side url' and the corresponding The angle relationship is fed back to the server, and then the proxy server feeds back to the terminal device;

5. Based on the information fed back by the proxy server, the terminal device selects the starting url' and initiates a content request;

6. The proxy server returns the viewing angle content requested by the terminal device;

During steps 4-6, the proxy server requests the content server for the initial content (that is, the content corresponding to the current viewing angle corresponding to the content request, or the content corresponding to the current location), especially if the proxy server has the user's viewing angle behavior information, Then, according to the information it possesses, some view files can be selected for initial transmission. Otherwise, the proxy server may need to request to transmit the full-view file to the proxy server side. Or, in the case of relatively insufficient bandwidth, the service request is postponed, that is, after receiving the user's view request information, the request for the view file and the service request for the adjacent view of the user's view are started; this process continues until the user ends the service , or until the proxy server obtains the complete content (that is, contains the full-view file, or contains all the files needed by the user based on user behavior judgment, or contains a certain range of content files near the user's current view).

7. When the terminal device turns its head, it determines the new perspective file url' information according to the new perspective, and initiates a content request;

8. The proxy server returns the content of the new viewing angle according to the updated viewing angle of the terminal device.

In the processing method provided in Figure 3, the process involved is applicable to the fact that the proxy server and the terminal device have established a certain trust relationship and can obtain the request content of the terminal device. Specifically, the terminal device actively discloses the content of the request to the A proxy server, or a proxy server has the ability to resolve such requests from users. This process is very applicable to the scenario where the network operator provides the proxy server.

Further, if the proxy server is deployed by the network operator, the proxy server has sufficient network information. Then the proxy server can choose to cache more or less user content according to the difference in the load status of the node network at different times. For example, during the initial content application, if the network status is relatively idle, the proxy server can help the user apply for more content at one time, and cache the content that the user does not need temporarily.

Note: If the corresponding content file information has been stored on the proxy server, the dotted line interaction shown in Figure 3 is no longer needed.

Fig. 4 is yet another processing flow, which is different from Fig. 2 and Fig. 3 in that, before obtaining the cached content from the content server side of the terminal device, the method further includes: negotiating with the terminal device , obtain the format of the interactive signaling; receive the content request sent by the terminal device based on the format of the interactive signaling; based on the content request, request the content server side to obtain cached content; wherein, the process of negotiation , including through the standardization of the network, allowing users to send network-recognizable signaling to inform the network-oriented proxy server deployed on the network to make corresponding content requests;

In addition, in step 1, the negotiated request content includes: based on the signaling format, that is, fill in the corresponding information, such as the content url, encapsulate it through signaling, and transmit it to the proxy server.

The proposal is applicable to all content distribution and content optimization involving angle interaction or similar angle interaction.

The processing manner of the remaining steps in FIG. 4 is the same as that in FIG. 3 , and will not be repeated here.

It can be seen that by adopting the solution provided in this embodiment, the proxy server can pre-cache the view angle and the corresponding view file, and then the proxy server can respond to the view file request information of the terminal device to feed back the corresponding view file for the terminal device. Target view file. In this way, it is possible to quickly respond to the user's business needs, reduce the time delay for the terminal device to obtain the view file, and avoid the user's discomfort when using the terminal device.

Embodiment four,

An embodiment of the present invention provides a proxy server, as shown in Figure 6, including:

The cache obtaining unit 61 is configured to obtain cached content from the content server side of the terminal device; wherein, the cached content is at least one view corresponding to the content request sent by the terminal device, and a view file corresponding to each view ;

The terminal communication unit 62 is configured to receive the viewing angle file request information sent by the terminal device; based on the viewing angle file request information, select the target viewing angle file corresponding to the target viewing angle from the cache content, and send the The target view file is sent to the terminal device. .

In this embodiment, the terminal device may specifically be a terminal device capable of running VR/AR, and the content server may also be a content server capable of providing VR/AR.

Before the user's perspective of the terminal device changes, the proxy server interacts with the remote content server to pre-cache the corresponding perspective file; the cached perspective and its corresponding perspective file can be the location where the user of the terminal device initially accesses the system. The angle of view near the current angle of view and its corresponding angle of view file; or, it may be at least one angle of view commonly used by the user and its corresponding angle of view file predicted by the proxy server according to the mastered user's angle of view behavior habits; or, it may also be the proxy server At least one preset viewing angle other than the current viewing angle of the user of the terminal device and its corresponding viewing angle file;

When the user's perspective of the terminal device changes, the terminal device sends a new perspective file request information to the proxy server, and the proxy server distributes the perspective file corresponding to the perspective cached in advance to the user based on the perspective file request information.

Specifically, the cache acquisition unit is used for

From the content server side of the terminal device, obtain all the views corresponding to the content request sent by the terminal device, and the view file corresponding to each view; wherein, the content request may include content with at least one dimension, for example, At least one of information such as a current location and a current viewing angle of the terminal device may be included. It can be understood that the content to be obtained by the terminal device can be determined according to the current location in the content request, and all the viewing angles at the location and the viewing angle files corresponding to each viewing angle can be obtained directly according to the corresponding location.

or,

From the content server side of the terminal device, the commonly used viewing angles of the terminal device and their corresponding viewing angle files are obtained; it should be understood that this processing method is based on the fact that the terminal device already has a commonly used viewing angle, or the proxy server at least obtains the terminal device It can only be realized on the basis of at least one behavior record of the terminal device; based on at least one behavior record of the terminal device, it can include the perspectives of the N requesting perspective files that the terminal device usually obtains, and according to such analysis, the common perspective of the terminal device can be obtained .

or,

From the content server side of the terminal device, the viewing angle file corresponding to the current viewing angle of the terminal device is obtained, and at least one related viewing angle of the current viewing angle and its corresponding viewing angle file are obtained; wherein, the related viewing angle representation is the same as the The angle difference between the current angles of view is smaller than the preset threshold value. The preset threshold value can be set according to the actual situation, for example, it can be within 30 degrees left and right, or it can also be included within 30 degrees up and down.

It should be noted that the content that can be stored on the terminal device side is at least one viewing angle and its corresponding link information;

When a terminal device initiates a view file request message, it may include a specific view, or first determine its corresponding connection information according to the view, and then directly send a link containing the view (or view file) to the proxy server information as the view file request information;

Correspondingly, the service server can select the target view file from its own cache content based on the view in the view server;

Alternatively, the service server may directly acquire the corresponding target view file based on the view link information in the view file request information.

The cache obtaining unit is configured to obtain at least one new view and each The view file corresponding to the new view;

The updated cache content based on the at least one new view angle and its corresponding view file.

That is to say, the proxy server may continue to interact with the content server to obtain updated cached content according to the user's perspective or based on a missing perspective file.

Specifically, the cache acquisition unit is configured to predict at least one viewing angle to be acquired by the terminal device based on the viewing angle corresponding to the received viewing angle file request information, and obtain at least one predicted viewing angle;

Judging whether the at least one predicted viewing angle and its corresponding viewing angle file are stored in the existing cache content;

If not saved, at least one new viewing angle and a viewing angle file corresponding to each new viewing angle are acquired from the content server side based on the at least one predicted viewing angle.

Furthermore, this embodiment can also be applied to transmission processing of multi-dimensional content. In the process of acquiring content by the terminal, based on the pre-acquired terminal behavior data or predicted terminal behavior data, more dimensional content of information that the terminal will use in the next step is extracted and stored in the proxy device. Once the terminal needs it, the content will be delivered to the terminal.

Wherein, the prediction method can be as follows: if the proxy server records the user's historical behavior; the user's preferred content dimension 1 in the past request, the trajectory is 1->3->2, then it is relatively easy to determine the prediction Cache content dimension, for example, if the current user looks at dimension 1, then before the user makes further requests, pre-cache content 3; the predicted content may be pre-cache content 3, or pre-cache content 3 and 2. It may depend on the comprehensive judgment of the user's reading speed and the user's available transmission bandwidth.

Further, the method for determining whether the proxy server acquires all the views and view files corresponding to the content request from the content server, or only obtains part of the views and the corresponding view files may be as follows: the proxy server further includes:

The processing unit 63 is configured to determine, based at least on the attribute information of the terminal device, the number of views contained in the cached content obtained from the content server and the number of corresponding view files;

Wherein, the attribute information includes at least one of the following information:

The viewing angle refresh rate in the terminal device;

The available transmission bandwidth of the terminal device;

The maximum transmission bandwidth of the terminal device.

Wherein, regarding the refreshing speed of the viewing angle in the terminal device, it can be determined by the user reading speed, for example, according to the speed at which the user changes the viewing angle, and the available transmission bandwidth of the user can be obtained through the attribute information of the terminal device obtained when the terminal device accesses the system, Or the network attribute is determined. The attribute information about the terminal device can be the maximum access bandwidth of the terminal device, the network attribute can be the network transmission bandwidth, etc.; further, the faster the user changes the viewing angle, the more viewing angle files can be pre-cached. In addition, the terminal The faster the corresponding bandwidth of the device, the more view files can be pre-cached.

Based on the aforementioned scheme, one of the implementation processes is shown in Figure 2, and the specific description is as follows:

1. The terminal device initiates a content request to the content server; wherein, the content request may include multiple dimensions of content, for example, it may include at least one of the following: current angle information, current location information, etc.; or, it can be understood as requesting The request information sent by the content server to establish a connection;

2. The content server and the proxy server communicate and synchronize the url' information of different perspective files on the proxy server side and the angle relationship between them;

Specifically, the url' information may be generated by the content server and notify the proxy server to configure, or may be generated by the proxy server, and the server initiates a request to the proxy server and obtains the url' information of the corresponding service on the proxy server side. Wherein, if generated by the proxy server and obtained from the content server, the proxy server may send a request for URL information to be obtained to the content server after the content server sends a notification that the terminal device has initiated a content request to the proxy server.

Perhaps in parallel, the content server pushes the initial content to the proxy server. In particular, if the content server has the user’s perspective behavior information, it can select some perspective files for initial transmission according to the information it has; otherwise, if the content server does not With the viewing angle behavior information of the user, the content server may need to transmit a more comprehensive viewing angle file to the proxy server side. Or, when the bandwidth is relatively insufficient, the service push is postponed, that is, after receiving the request information of the user's perspective, the push of the perspective file is started, and the business push of the adjacent perspective of the user's perspective is carried out;

Wherein, the configuration of the proxy server needs to unify the content requested by the user with the content server. At the position of the proxy server, the proxy server needs to be able to replace the user to request content with the content server and cache the content; when the user actually makes a content request, the Content distribution users, and further ask the content server to request the content that the user requests or may request in the next step, but has not been stored in the proxy server;

The generation of configuration can be as follows: the server can tell the proxy server, the dimension corresponding to the multi-dimensional content and the location of the content file of each dimension are decided by the proxy server, and the content file of each dimension of the multi-dimensional content is in the corresponding position of the proxy server;

Viewpoint behavior information can be understood as each viewing angle acquisition cycle, the obtained viewing angle; for example, 1, viewing angle trajectory 1->3->2->..., and the cycle and time of viewing angle trajectory transformation.

It should be noted that the content request does not necessarily carry the perspective. The traditional process is to start requesting the perspective after the content request is successful; before the formal perspective request, based on the above-mentioned perspective behavior information, first cache some content.

3. The content server returns to the terminal device the url' information corresponding to all view files on the proxy server side, as well as the angle relationship between them;

4. Based on the received view file url' information, the terminal device selects the starting url' and requests the content file of the corresponding view; the terminal receives the view configuration file, such as what view corresponds to what url; based on this information , the terminal selects the corresponding url based on its own perspective, and makes a request

5. The proxy server returns the perspective file url' information requested by the terminal device;

6. The terminal device determines the new perspective file url' information according to the new perspective as the user turns the head, and initiates a content request;

7. The proxy server returns the content of the new viewing angle according to the updated viewing angle of the terminal device.

It should be pointed out that, between steps 4-7, the content server may receive the viewing angle behavior information of the terminal fed back from the proxy server, such as the terminal viewing angle request information, and based on the obtained information or not obtain the information, continue to push the proxy server side View files until the content transmission is complete (that is, full view files are included, or all files needed by the user are included based on user behavior, or content files within a certain range near the user's current view angle are included).

In the foregoing process, the content server and the proxy server establish a considerable trust relationship. The content server actively pushes services to the proxy server, and the proxy server supports optimization of content distribution. This process is very suitable for the scenario where the content service provider builds its own proxy server, or the content service provider and the proxy server establish a solid contract relationship.

Note: If the corresponding content file information has been stored on the proxy server, the dotted line interaction shown in Figure 2 is no longer needed.

Another specific implementation manner of this embodiment is different from the solution shown in FIG. 2 in that the terminal communication unit is configured to obtain the content request sent by the terminal device to the content server; correspondingly, The cache acquiring unit is configured to request cache content from the content server side based on the content request.

In another processing flow, the terminal communication unit is configured to negotiate with the terminal device to obtain an interactive signaling format; and receive a content request from the terminal device based on the interactive signaling format. Among them, the negotiation process, including the standardization of the network, allows users to send network-recognizable signaling to inform the network-oriented proxy server deployed on the network to request corresponding content;

In addition, the negotiated request content includes: based on the signaling format, that is, fill in corresponding information, such as content url, encapsulate it through signaling, and transmit it to the proxy server.

The proposal is applicable to all content distribution and content optimization involving angle interaction or similar angle interaction.

The processing unit is configured to encapsulate the viewing angle and the link information corresponding to the viewing angle file to obtain packaging information, and send the packaging information to the terminal device;

or,

Encapsulating the view and the link information corresponding to the view file to obtain encapsulation information, and sending the encapsulation information to the content server.

It can be seen that by adopting the solution provided in this embodiment, the proxy server can pre-cache the view angle and the corresponding view file, and then the proxy server can respond to the view file request information of the terminal device to feed back the corresponding view file for the terminal device. Target view file. In this way, it is possible to quickly respond to the user's business needs, reduce the time delay for the terminal device to obtain the view file, and avoid the user's discomfort when using the terminal device.

Embodiment five,

This embodiment provides a terminal device, as shown in FIG. 7, including:

A file request unit 71, configured to send the viewing angle file request information to the proxy server;

The file obtaining unit 72 is configured to receive the target view file corresponding to the target view from the cache content selected by the proxy server based on the view file request information;

Wherein, the cache content is at least one view corresponding to the content request sent by the terminal device cached at the proxy server side, and a view file corresponding to each view.

In this embodiment, the terminal device may specifically be a terminal device capable of running VR/AR, and the content server may also be a content server capable of providing VR/AR.

Before the user's perspective of the terminal device changes, the proxy server interacts with the remote content server to pre-cache the corresponding perspective file; the cached perspective and its corresponding perspective file can be the location where the user of the terminal device initially accesses the system. The angle of view near the current angle of view and its corresponding angle of view file; or, it may be at least one angle of view commonly used by the user and its corresponding angle of view file predicted by the proxy server according to the mastered user's angle of view behavior habits; or, it may also be the proxy server At least one preset viewing angle other than the current viewing angle of the user of the terminal device and its corresponding viewing angle file;

When the user's perspective of the terminal device changes, the terminal device sends a new perspective file request information to the proxy server, and the proxy server distributes the perspective file corresponding to the perspective cached in advance to the user based on the perspective file request information.

Specifically, the terminal equipment also includes:

A content request unit 73, configured to send a content request to a content server; receive at least one viewing angle cached at the proxy server side fed back by the content server, or receive the view at the proxy server side fed back by the content server Cached at least one viewpoint and its link information.

or,

A content request unit 73, configured to send a content request to a content server; receive at least one viewing angle cached by the proxy server fed back by the proxy server, or receive at least one viewing angle cached on the proxy server side fed back by the content server and its link information.

Wherein, the content request may include content with at least one dimension, for example, may include at least one of information such as a current location and a current viewing angle of the terminal device. It can be understood that the content to be obtained by the terminal device can be determined according to the current location in the content request, and all the viewing angles at the location and the viewing angle files corresponding to each viewing angle can be obtained directly according to the corresponding location.

It should be noted that the content that can be stored on the terminal device side is at least one viewing angle and its corresponding link information;

When a terminal device initiates a view file request message, it may include a specific view, or first determine its corresponding connection information according to the view, and then directly send a link containing the view (or view file) to the proxy server information as the view file request information;

Correspondingly, the service server can select the target view file from its own cache content based on the view in the view server;

Alternatively, the service server may directly acquire the corresponding target view file based on the view link information in the view file request information.

The terminal equipment also includes:

A negotiating unit 74, configured to negotiate with the proxy server to obtain the format of the interactive signaling;

A content request unit 73, configured to send a content request to the proxy server based on the format of the interaction signaling; receive at least one viewing angle of its cache fed back by the proxy server, or receive the at least one viewing angle fed back by the content server The at least one view and its link information cached on the proxy server side.

Among them, the negotiation process, including the standardization of the network, allows users to send network-recognizable signaling to inform the network-oriented proxy server deployed on the network to request corresponding content;

The file obtaining unit is further configured to receive encapsulation information sent by the proxy server or the content server, the encapsulation information is used to represent the cached perspective on the proxy server side and its corresponding link information for .

It can be seen that by adopting the solution provided in this embodiment, the proxy server can pre-cache the view angle and the corresponding view file, and then the proxy server can respond to the view file request information of the terminal device to feed back the corresponding view file for the terminal device. Target view file. In this way, it is possible to quickly respond to the user's business needs, reduce the time delay for the terminal device to obtain the view file, and avoid the user's discomfort when using the terminal device.

Embodiment six,

An embodiment of the present invention provides a content server, as shown in Figure 8, including:

The cache sending unit 81 is configured to send the cache content to the proxy server of the terminal device based on the content request sent by the terminal device; wherein, the cache content is at least one view corresponding to the content request sent by the terminal device, and each The view file corresponding to the view.

In this embodiment, the terminal device may specifically be a terminal device capable of running VR/AR, and the content server may also be a content server capable of providing VR/AR.

Before the user's perspective of the terminal device changes, the proxy server interacts with the remote content server to pre-cache the corresponding perspective file; the cached perspective and its corresponding perspective file can be the location where the user of the terminal device initially accesses the system. The angle of view near the current angle of view and its corresponding angle of view file; or, it may be at least one angle of view commonly used by the user and its corresponding angle of view file predicted by the proxy server according to the mastered user's angle of view behavior habits; or, it may also be the proxy server At least one preset viewing angle other than the current viewing angle of the user of the terminal device and its corresponding viewing angle file;

When the user's perspective of the terminal device changes, the terminal device sends a new perspective file request information to the proxy server, and the proxy server distributes the perspective file corresponding to the perspective cached in advance to the user based on the perspective file request information.

Specifically, the buffered sending unit is configured to send to the content server side all views corresponding to the content request and a view file corresponding to each view;

or,

sending the commonly used viewing angles of the terminal device and corresponding viewing angle files to the content server side;

or,

To the content server side, send a viewing angle file corresponding to the current viewing angle of the terminal device, and obtain at least one related viewing angle of the current viewing angle and its corresponding viewing angle file; The angle difference between them is smaller than the preset threshold value.

The preset threshold value can be set according to the actual situation, for example, it can be within 30 degrees left and right, or it can also be included within 30 degrees up and down.

It should be noted that the content that can be stored on the terminal device side is at least one viewing angle and its corresponding link information;

When a terminal device initiates a view file request message, it may include a specific view, or first determine its corresponding connection information according to the view, and then directly send a link containing the view (or view file) to the proxy server information as the view file request information;

Correspondingly, the service server can select the target view file from its own cache content based on the view in the view server;

Alternatively, the service server may directly acquire the corresponding target view file based on the view link information in the view file request information.

The content server also includes:

A cache update unit 82, configured to send at least one new view and a view file corresponding to each new view to the proxy server, wherein the at least one new view and its corresponding view file are used to update the The content of the proxy server's cache.

That is to say, the proxy server may continue to interact with the content server to obtain updated cached content according to the user's perspective or based on a missing perspective file.

The content server also includes:

The communication unit 83 is configured to receive the terminal device, or receive the content request sent by the proxy server.

The communication unit 83 is configured to receive the encapsulation information sent by the proxy server by encapsulating the view angle and the link information corresponding to the view file;

A communication unit 83, configured to send the encapsulation information to the terminal device.

It can be seen that by adopting the solution provided in this embodiment, the proxy server can pre-cache the view angle and the corresponding view file, and then the proxy server can respond to the view file request information of the terminal device to feed back the corresponding view file of the target view to the terminal device. Target view file. In this way, it is possible to quickly respond to the user's business needs, reduce the time delay for the terminal device to obtain the view file, and avoid the user's discomfort when using the terminal device.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.

The serial numbers of the above embodiments of the present invention are for description only, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on this understanding, the technical solution of the present invention can be embodied in the form of a software product in essence or the part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, disk, CD) contains several instructions to enable a terminal device (which may be a mobile phone, a computer, a device, an air conditioner, or a network device, etc.) to execute the methods described in various embodiments of the present invention.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields , are all included in the scope of patent protection of the present invention in the same way.

Claims (36)

1. An information transmission method applied to a proxy server is characterized by comprising the following steps:

acquiring at least one visual angle corresponding to a content request sent by terminal equipment and a visual angle file corresponding to the visual angle from a content server side of the terminal equipment, and adding the at least one visual angle and the visual angle file corresponding to the at least one visual angle to cache content;

receiving visual angle file request information sent by the terminal equipment;

and selecting a target view file corresponding to a target view from the cache contents based on the view file request information, and sending the target view file to the terminal equipment.

2. The method according to claim 1, wherein the obtaining of the cache content from the content server side of the terminal device comprises:

acquiring all views corresponding to content requests sent by the terminal equipment and view files corresponding to all views from a content server side of the terminal equipment;

or,

acquiring a common visual angle of the terminal equipment and a visual angle file corresponding to the common visual angle from a content server side of the terminal equipment;

or,

acquiring a view file corresponding to a current view of the terminal equipment from a content server side of the terminal equipment, and acquiring at least one related view of the current view and a view file corresponding to the view; and the angle difference value between the related visual angle representation and the current visual angle is smaller than a preset threshold value.

3. The method according to claim 1, wherein when the target view file corresponding to the target view is selected from the cache contents based on the target view in the view file request information and sent to the terminal device, the method further comprises:

if the proxy server does not store all views corresponding to the content request sent by the terminal equipment and files corresponding to the views, acquiring at least one new view and a view file corresponding to each new view from the content server; updating cache content based on the new at least one view and a view file corresponding to the new at least one view;

or,

if the proxy server does not store all view files corresponding to the view file request information sent by the terminal equipment, acquiring at least one new view file from the content server; updating the cached content based on the new at least one view file.

4. The method according to claim 3, wherein if the proxy server does not store all views and files corresponding to the views corresponding to the content request sent by the terminal device, acquiring a new at least one view and a view file corresponding to each new view from the content server includes:

predicting at least one view angle required to be acquired by the terminal equipment based on the view angle corresponding to the received view angle file request information to obtain at least one predicted view angle;

judging whether the at least one predicted view and a view file corresponding to the predicted view are stored in the existing cache content;

and if not, acquiring at least one new visual angle and a visual angle file corresponding to each new visual angle from the content server side based on the at least one predicted visual angle.

5. The method according to any one of claims 1-4, further comprising:

determining views contained in the cache content acquired from the content server and the number of view files corresponding to the views based on at least the attribute information of the terminal device;

wherein, the attribute information comprises at least one of the following information:

a view refresh rate in the terminal device;

an available transmission bandwidth of the terminal device;

a maximum transmission bandwidth of the terminal device.

6. The method according to claim 1, wherein before the obtaining of the cached content from the content server side of the terminal device, the method further comprises:

acquiring a content request sent to the content server by the terminal equipment;

and requesting to acquire cache content from the content server side based on the content request.

7. The method according to claim 1, wherein before the obtaining of the cached content from the content server side of the terminal device, the method further comprises:

negotiating with the terminal equipment to obtain a format of an interactive signaling;

receiving a content request sent by the terminal equipment based on the format of the interactive signaling;

and requesting to acquire cache content from the content server side based on the content request.

8. The method of claim 1, further comprising:

packaging the view angle and the link information corresponding to the view angle file to obtain packaging information, and sending the packaging information to the terminal equipment;

or,

and packaging the view angle and the link information corresponding to the view angle file to obtain packaging information, and sending the packaging information to the content server.

9. An information transmission method is applied to terminal equipment, and is characterized in that the method comprises the following steps:

sending view file request information to a proxy server;

selecting a target view file corresponding to the target view from the cache contents based on the view file request information received by the proxy server;

the cached content is at least one view angle cached by the proxy server side and corresponding to the content request sent by the terminal equipment, and a view angle file corresponding to each view angle.

10. The method of claim 9, wherein before sending the view file request information to the proxy server, the method further comprises:

sending a content request to a content server;

and receiving at least one view cached at the proxy server side fed back by the content server, or receiving at least one view cached at the proxy server side and link information thereof fed back by the content server.

11. The method of claim 9, wherein before sending the view file request information to the proxy server, the method further comprises:

sending a content request to a content server;

and receiving at least one cached view fed back by the proxy server, or receiving at least one cached view and link information thereof at the proxy server side fed back by the content server.

12. The method of claim 9, wherein before sending the view file request information to the proxy server, the method further comprises:

negotiating with the proxy server to obtain the format of the interactive signaling;

sending a content request to the proxy server based on the format of the interactive signaling;

and receiving at least one cached view fed back by the proxy server, or receiving at least one cached view and link information thereof at the proxy server side fed back by the content server.

13. The method of claim 9, further comprising:

and receiving packaging information sent by the proxy server or the content server, wherein the packaging information is used for representing the view angle cached at the proxy server side and the link information corresponding to the proxy server side.

14. An information transmission method applied to a content server, the method comprising:

based on a content request sent by a terminal device, at least one view corresponding to the content request sent by the terminal device and a view file corresponding to the view are sent to a proxy server of the terminal device.

15. The method of claim 14, wherein sending the cached content to a proxy server of the terminal device comprises:

sending all the visual angles corresponding to the content request and a visual angle file corresponding to each visual angle to the content server side;

or,

sending a common visual angle of the terminal equipment and a visual angle file corresponding to the common visual angle to the content server side;

or,

sending a view file corresponding to the current view of the terminal equipment to the content server side, and acquiring at least one related view of the current view and a view file corresponding to the view; and the angle difference value between the related visual angle representation and the current visual angle is smaller than a preset threshold value.

16. The method of claim 14, further comprising:

and sending a new at least one visual angle and a visual angle file corresponding to each new visual angle to the proxy server, wherein the new at least one visual angle and the visual angle file corresponding to the new visual angle are used for updating the cache content of the proxy server.

17. The method according to claim 14, wherein the content request based on the terminal device further comprises:

and receiving the terminal equipment or receiving a content request sent by the proxy server.

18. The method of claim 14, further comprising:

and receiving link information which is sent by the proxy server and corresponds to the view angle and the view angle file, packaging the link information to obtain packaging information, and sending the packaging information to the terminal equipment.

19. A proxy server, comprising:

the system comprises a cache acquisition unit, a cache processing unit and a cache processing unit, wherein the cache acquisition unit is used for acquiring at least one visual angle corresponding to a content request sent by terminal equipment and a visual angle file corresponding to the visual angle from a content server side of the terminal equipment and adding the at least one visual angle and the visual angle file corresponding to the visual angle to cache content;

the terminal communication unit is used for receiving the view file request information sent by the terminal equipment; and selecting a target view file corresponding to a target view from the cache contents based on the view file request information, and sending the target view file to the terminal equipment.

20. The proxy server according to claim 19, wherein the cache obtaining unit is configured to obtain, from a content server side of the terminal device, all views corresponding to content requests sent by the terminal device and view files corresponding to each view;

or,

the cache obtaining unit is used for obtaining a common view angle of the terminal equipment and a view angle file corresponding to the common view angle from a content server side of the terminal equipment;

or,

the cache obtaining unit is configured to obtain, from a content server side of the terminal device, a view file corresponding to a current view of the terminal device, and obtain at least one relevant view of the current view and a view file corresponding to the relevant view; and the angle difference value between the related visual angle representation and the current visual angle is smaller than a preset threshold value.

21. The proxy server according to claim 19, wherein the cache obtaining unit is configured to obtain, from the content server, at least one new view and a view file corresponding to each new view if the proxy server does not store all views and files corresponding to all views corresponding to content requests sent by the terminal device; updating cache content based on the new at least one view and a view file corresponding to the new at least one view;

or,

the cache obtaining unit is configured to obtain at least one new view file from the content server if the proxy server does not store all view files corresponding to the view file request information sent by the terminal device; updating the cached content based on the new at least one view file.

22. The proxy server according to claim 21, wherein the cache obtaining unit is configured to predict, based on a view corresponding to the received view file request information, at least one view that needs to be obtained by the terminal device, so as to obtain at least one predicted view;

judging whether the at least one predicted view and a view file corresponding to the predicted view are stored in the existing cache content;

and if not, acquiring at least one new visual angle and a visual angle file corresponding to each new visual angle from the content server side based on the at least one predicted visual angle.

23. A proxy server as claimed in any one of claims 19 to 22, further comprising:

the processing unit is used for determining the number of the view angles and the view angle files corresponding to the view angles, which are contained in the cache content acquired from the content server, at least based on the attribute information of the terminal equipment;

wherein, the attribute information comprises at least one of the following information:

a view refresh rate in the terminal device;

an available transmission bandwidth of the terminal device;

a maximum transmission bandwidth of the terminal device.

24. The proxy server according to claim 19, wherein the terminal communication unit is configured to obtain a content request sent by the terminal device to the content server;

correspondingly, the cache obtaining unit is configured to request the content server side to obtain cache content based on the content request.

25. The proxy server according to claim 19, wherein the terminal communication unit is configured to negotiate with the terminal device to obtain a format of the interactive signaling; and receiving a content request sent by the terminal equipment based on the format of the interactive signaling.

26. The proxy server of claim 19, further comprising:

the processing unit is used for packaging the view angle and the link information corresponding to the view angle file to obtain packaging information and sending the packaging information to the terminal equipment;

or,

and packaging the view angle and the link information corresponding to the view angle file to obtain packaging information, and sending the packaging information to the content server.

27. A terminal device, comprising:

the file request unit is used for sending the view file request information to the proxy server;

the file acquisition unit is used for receiving the target view file corresponding to the target view selected from the cache contents by the proxy server based on the view file request information;

the cached content is at least one view angle cached by the proxy server side and corresponding to the content request sent by the terminal equipment, and a view angle file corresponding to each view angle.

28. The terminal device of claim 27, wherein the terminal device further comprises:

a content request unit for transmitting a content request to a content server; and receiving at least one view cached at the proxy server side fed back by the content server, or receiving at least one view cached at the proxy server side and link information thereof fed back by the content server.

29. The terminal device of claim 27, wherein the terminal device further comprises:

a content request unit for transmitting a content request to a content server; and receiving at least one cached view fed back by the proxy server, or receiving at least one cached view and link information thereof at the proxy server side fed back by the content server.

30. The terminal device of claim 27, wherein the terminal device further comprises:

a negotiation unit, configured to negotiate with the proxy server to obtain a format of an interactive signaling;

a content request unit, configured to send a content request to the proxy server based on the format of the interactive signaling; and receiving at least one cached view fed back by the proxy server, or receiving at least one cached view and link information thereof at the proxy server side fed back by the content server.

31. The terminal device according to claim 27, wherein the file obtaining unit is configured to receive package information sent by the proxy server or a content server, where the package information is used to characterize a view cached at the proxy server and link information corresponding to the view at the proxy server.

32. A content server, comprising:

the cache sending unit is used for sending at least one view angle corresponding to the content request sent by the terminal equipment and a view angle file corresponding to each view angle to a proxy server of the terminal equipment based on the content request sent by the terminal equipment.

33. The content server according to claim 32, wherein the cache sending unit is configured to send, to the content server side, all views corresponding to the content request and view files corresponding to each view;

or,

sending a common visual angle of the terminal equipment and a visual angle file corresponding to the common visual angle to the content server side;

or,

sending a view file corresponding to the current view of the terminal equipment to the content server side, and acquiring at least one related view of the current view and a view file corresponding to the view; and the angle difference value between the related visual angle representation and the current visual angle is smaller than a preset threshold value.

34. The content server according to claim 32, wherein the content server further comprises:

and the cache updating unit is used for sending a new at least one view and a view file corresponding to each new view to the proxy server, wherein the new at least one view and the view file corresponding to the new view are used for updating the cache content of the proxy server.

35. The content server according to claim 32, wherein the content server further comprises:

and the communication unit is used for receiving the terminal equipment or receiving the content request sent by the proxy server.

36. The content server according to claim 32, wherein the content server further comprises:

the communication unit is used for receiving the link information which is sent by the proxy server and corresponds to the view angle and the view angle file, and packaging the link information to obtain packaging information; and the terminal equipment is used for sending the packaging information to the terminal equipment.