WO2021218653A1

WO2021218653A1 - Media resource transmission method, related apparatus and system

Info

Publication number: WO2021218653A1
Application number: PCT/CN2021/087604
Authority: WO
Inventors: 吴兵; 高海; 卢秉廉
Original assignee: 华为技术有限公司
Priority date: 2020-04-26
Filing date: 2021-04-15
Publication date: 2021-11-04
Also published as: CN113556783B; CN113556783A

Abstract

Disclosed are a media resource transmission method, a related apparatus and a system, which belong to the technical field of communications. In the embodiments of the present application, on the basis of bit rate information of a media resource, a bandwidth for transmitting the media resource is determined by means of a media server, and the bandwidth is carried in a media negotiation request and is sent to a terminal, such that the terminal can perform bandwidth application according to the received bandwidth, thereby realizing the transmission of the media resource. Since the bandwidth application is performed on the basis of the bit rate information, the wasting of a bandwidth resource is avoided during the transmission process, thereby increasing the bandwidth utilization rate.

Description

Media resource transmission method, related device and system

This application claims the priority of the Chinese patent application filed on April 26, 2020, the application number is 202010337353.6, and the invention title is "media resource transmission method, related device and system", the entire content of which is incorporated into this application by reference.

Technical field

This application relates to the field of communication technology, and in particular to a media resource transmission method, related devices and systems.

Background technique

With the continuous development of communication technology, high-definition voice (voice over long term evolution, VOLTE) technology has gradually entered people’s lives. People can enjoy various types of media resource experiences. For example, people can enjoy video experience while making voice calls. Such as video ring back tone, video customer service, etc. To ensure the normal playback of media resources, the process of media resource transmission is very important.

At present, the media resource transmission method is usually: the calling terminal initiates a call to the called terminal, and when the called terminal rings, the media server is triggered to obtain the fixed level value of the media resource according to the user's subscription information. The bandwidth value corresponding to the level value is used to set the bandwidth information, and then the bandwidth update request carrying the bandwidth information is sent to the calling terminal. After receiving the bandwidth update request, the calling terminal sets the bandwidth parameters according to the bandwidth information, and the network device of the calling terminal applies for transmission bandwidth for the media resources according to the bandwidth parameters, so that the media server can issue the transmission bandwidth to the calling terminal Transfer media resources.

The above scheme applies for transmission bandwidth based on a fixed level value when transmitting media resources. However, the currently used video codec is usually H264 codec. H264 codec only defines 20 fixed level values and their corresponding maximum bandwidth. Applying for transmission bandwidth based on the maximum bandwidth can easily cause waste of bandwidth resources and low bandwidth resource utilization.

Summary of the invention

The embodiments of the present application provide a media resource transmission method, related device, and system, which can avoid waste of bandwidth resources when applying for transmission bandwidth of media resources, and improve bandwidth resource utilization. The technical solutions of the media resource transmission method, related devices and system are as follows:

In the first aspect, a media resource transmission method is provided, and the implementation process of the method may be:

Obtain code rate information of the media resource to be played of the target terminal;

Determine a target bandwidth according to the code rate information of the media resource, where the target bandwidth is used to transmit the media resource;

Sending a media negotiation request to the target terminal, where the media negotiation request carries the target bandwidth;

In response to the target terminal's acknowledgment response to the media negotiation request, the media resource is transmitted to the target terminal on the target bandwidth.

In the above embodiment, the media server determines the bandwidth used to transmit the media resource based on the code rate information of the media resource, and carries the bandwidth in the media negotiation request and sends it to the terminal, so that the terminal can perform according to the received bandwidth. Bandwidth application, thereby realizing the transmission of media resources. Since the bandwidth application is based on the code rate information, the waste of bandwidth resources is avoided during the transmission process and the bandwidth utilization rate is improved.

In a possible implementation manner, the obtaining the code rate information of the media resource to be played of the target terminal includes: parsing a data packet of the media resource to obtain the code rate information carried in the data packet. In the foregoing embodiment, the code rate information of the media resource is obtained by parsing the data packet, and the bandwidth of the media resource can be obtained in real time based on this playback, thereby ensuring the smooth progress of the bandwidth application.

In a possible implementation manner, the obtaining code rate information of the media resource to be played of the target terminal includes: obtaining code rate information corresponding to the media resource from a media resource server. In the above-mentioned embodiment, the process of obtaining the code rate information of the media resource through the media resource server is simple, quick and time-consuming.

In a possible implementation manner, the determining the target bandwidth according to the code rate information of the media resource includes any one of the following:

Determining the code rate information of the media resource as the target bandwidth;

The code rate information of the media resource is adjusted according to the target increase ratio to obtain the target bandwidth.

In the above-mentioned embodiment, the media server can directly use the bit rate information as the target bandwidth, so that the determined bandwidth can meet the transmission demand of the media resource. It can also determine the target bandwidth based on the target floating ratio, and by setting the bit rate reasonably The increase in the target ratio of information can ensure the bandwidth to meet the transmission requirements of media resources while further ensuring the reliability of the video service experience.

In the foregoing embodiment, the media resource is any one of a video ring back tone, a video advertisement, and a video customer service, that is, any one of the foregoing implementation manners can be applied to different video services.

In a possible implementation manner, the target bandwidth is located in a target field in the media negotiation request, and the target field is used to indicate the bandwidth to be applied for.

In a possible implementation manner, the target field is the maximum bandwidth field, and the existing field in the media negotiation request is used to carry the target bandwidth without increasing the workload of the sender and the receiver to parse the media negotiation request. Of course, in another possible implementation manner, the target field may also be a newly added field based on an existing field, so that the target bandwidth is notified to the opposite side on the premise that the original field is guaranteed.

In a possible implementation manner, the target bandwidth is a bandwidth allocated by the network device based on the confirmation response of the target terminal to the media negotiation request.

In a second aspect, a media resource transmission device is provided, which is used to execute the above-mentioned media resource transmission method. Specifically, the media resource transmission apparatus includes a functional module for executing the media resource transmission method provided in the foregoing first aspect or any optional manner of the foregoing first aspect.

In a third aspect, a server is provided. The server includes a processor and a memory, and at least one instruction is stored in the memory. The instruction is loaded and executed by the processor to implement the operations performed by the foregoing media resource transmission method.

In a fourth aspect, a computer storage medium is provided, and at least one instruction is stored in the computer storage medium, and the instruction is loaded and executed by a processor to implement operations performed by the foregoing media resource transmission method.

In a fifth aspect, a computer program product is provided, which when the computer program product runs on a computer, causes the computer to execute part or all of the steps of any method of the first aspect.

In a sixth aspect, a media resource transmission method is provided, and the method includes:

The media server obtains the code rate information of the media resource to be played of the target terminal, determines the target bandwidth according to the code rate information of the media resource, the target bandwidth is used to transmit the media resource, and the media server sends a media negotiation request to the target terminal, The media negotiation request carries the target bandwidth;

The target terminal receives the media negotiation request, and sends an acknowledgement response to the media negotiation request to the media server;

The network device allocates the target bandwidth based on the confirmation response of the target terminal to the media negotiation request;

In response to the target terminal's acknowledgment response to the media negotiation request, the media server transmits the media resource to the target terminal on the target bandwidth.

In a seventh aspect, a media resource transmission system is provided. The system includes a media server, a target terminal, and a network device. The media server, the target terminal, and the network device are used to execute the media resource transmission method provided in the fifth aspect.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

FIG. 1 is a system architecture diagram of a VoLTE network provided by an embodiment of the present application;

Figure 2 is a flowchart of a media resource transmission method provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of a method for obtaining code rate information through analysis according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a method for obtaining code rate information through query according to an embodiment of the present application;

FIG. 5 is a flowchart of a media resource transmission method provided by an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a media resource transmission device provided by an embodiment of the present application;

Fig. 7 is a schematic structural diagram of a server provided by an embodiment of the present application.

Detailed ways

The implementation manners of the present application will be described in further detail below in conjunction with the accompanying drawings.

The embodiments of the present application may be applicable to 4th generation (4G), 5th generation (5G) mobile communication network architectures or future networks. For the convenience of description, the following takes the 4G network architecture as an example to illustrate the network architecture and method flow of the solution.

The following describes the system architecture in the VoLTE network. FIG. 1 is a system architecture diagram of a VoLTE network provided by an embodiment of the present application. Referring to FIG. 1, the VoLTE network may include: a calling terminal, a called terminal, a wireless network, The Internet Protocol (IP) media subsystem (IP multimedia subsystem, IMS) domain network on the calling side and the called side. Among them, the calling and called IMS domain core networks may include media servers. Optionally, the media server may not be located in the calling or called IMS domain core network, but independent of the calling and called IMS domain core networks.

The IMS domains of the calling side and the called side may include an IMS domain core network and an evolved packet core network (Evolved Packet Core, EPC). The IMS domain core network includes: Serving-Call Session Control Function (S-CSCF) equipment, Interrogating-Call Session Control Function (I-CSCF) equipment, and agent-Call Session Control Function (I-CSCF) equipment Control function (Proxy-Call Session Control Function, P-CSCF) equipment, Home Subscriber Server (HSS) equipment, Session Border Controller (SBC) equipment, and several dedicated servers, such as multimedia phones Application server (Multimedia Telephony Application Server, MMTel AS). Among them, the I-CSCF device can be combined with the S-CSCF device, which can be referred to as "I/S-CSCF" device for short. SBC equipment and P-CSCF equipment can be set together, which can be referred to as "SBC/P-CSCF" equipment for short. The EPC may include Packet Data Network Gateway (PGW) equipment, Serving Gateway (SGW) equipment, and Mobile Management Entity (MME) equipment. Among them, the PGW equipment and the SGW equipment can be set together, which can be referred to as "SGW/PGW" equipment for short.

The network devices involved in the embodiments of the present application may be a collective term for one or more of the above-mentioned wireless communication networks, which will not be described in detail here, but will be briefly described. For example: HSS equipment can be used to store user subscription information and location information. SBC equipment can provide secure access and media processing. MMTel AS equipment provides basic multimedia telephony services and supplementary services. MME equipment is the core equipment of the EPC network. The SGW device can be used for the connection between the IMS core network and the wireless network, and the PGW device can be used for the connection between the IMS core network and the IP network. S-CSCF equipment can be used for user registration, authentication control, session routing and service trigger control, and maintain session state information. The I-CSCF equipment can be used for the assignment and query of the S-CSCF equipment registered by the user. P-CSCF equipment can be used as a proxy for signaling and messages.

The media server in this application is used to provide the calling user or the called user with the playback of media resources. For example, the media server is used to obtain the code rate information of the media resource to be played of the target terminal; according to the code rate of the media resource Information, determine the target bandwidth, the target bandwidth is used to transmit the media resource; send a media negotiation request to the target terminal, the media negotiation request carries the target bandwidth; in response to the target terminal negotiating the media The requested confirmation response is to transmit the media resource to the target terminal on the target bandwidth.

The media server may be one of application servers (Application Server, AS). For example, when the media server provides a video color ring back tone service, it is also called a video color ring back tone platform. It should be understood that the media server provides the calling user or the called user with playback of media resources through cooperation with the aforementioned network equipment. This application also includes a media resource server. The media resource server is also called a central music platform. The media resource server is used to provide media resources such as video ring back tones, video ringtones, video advertisements, and video customer service, for example, the media resource server production and management The above media resources.

The calling terminal and the called terminal are devices with wireless transceiver functions, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; they can also be deployed on the water (such as ships, etc.); they can also be deployed in the air (For example, airplanes, balloons, satellites, etc.). Specifically, the terminal device may be a terminal device (terminal device) that can access a mobile network, a mobile phone (mobile phone), a tablet computer (pad), a computer with a wireless transceiver function, a virtual reality (VR) terminal, an augmented Reality (AR) terminals, wireless terminals in industrial control (industrial control), wireless terminals in self-driving (self-driving), wireless terminals in remote medical, and smart grid (smart grid) The wireless terminal in the transportation safety (transportation safety), the wireless terminal in the smart city (smart city), the wireless terminal in the smart home (smart home), and so on. The calling terminal may also be a terminal device that can access a fixed network, such as a wired telephone, etc.; the calling terminal may also be a soft terminal corresponding to application software with a calling function. Refer to the description of the calling terminal for the called terminal.

The solution of the present application will be described below in conjunction with specific embodiments.

Fig. 2 is a flowchart of a media resource transmission method provided by an embodiment of the present application. This method can be applied in the application scenario shown in FIG. 1, of course, can also be applied in other communication scenarios, and the embodiment of the present application is not limited herein.

201. The calling terminal sends a call request to the called terminal.

Among them, the call initiated by the calling terminal to the called terminal may be a video call or an audio call. The call request can be an INVITE message. The call request can carry media capability information of the calling terminal. The media capability information can be session description protocol (SDP) information of the calling terminal. The SDP information of the calling terminal includes but It is not limited to the call type, calling and called numbers, media types and encodings supported by the calling party, etc.

In a possible implementation manner, the calling terminal may send a call request to the called terminal through the media server to request a voice call with the called terminal. That is, the call request sent by the calling terminal is forwarded to the media server, and the media server sends the call request to the called terminal. It should be understood that the media server may process the call request and then forward the processed call request, which is not limited in this application.

202. After receiving the call request, the called terminal sends a first response message to the call request to the calling terminal, where the first response message is used to indicate that the called terminal has received the call request.

The first response message may be a temporary response message, that is, an 18× message, such as message 183. The first response message may carry media capability information of the called terminal, and the media capability information may be SDP information of the called terminal. , The SDP information of the called terminal includes but is not limited to the call type, the number of the calling and the called, the media type and encoding supported by the calling and the called, etc.

In a possible implementation, after receiving the call request sent by the media server, the called terminal determines the media capability information of the calling terminal according to the call request, and then determines the communication between the calling terminal and the calling terminal according to its own audio and video capabilities. The media resource negotiation result, that is, the media capability information of the called terminal, generates a first response message corresponding to the call request according to the media capability information, and sends the first response message to the calling terminal.

Optionally, the process of the called terminal sending the first response message to the calling terminal may be: the first response message sent by the called terminal is first forwarded to the media server, and then the media server forwards the first response message To the calling terminal. It should be understood that the media server may process the first response message and then forward the processed first response message, which is not limited in this application.

203. After receiving the first response message, the calling terminal sends a confirmation message to the called terminal, where the confirmation message is used to indicate that the calling terminal has received the first response message sent by the called terminal.

The confirmation message may be a PRACK (Provisional Response ACKnowledgement) message.

In a possible implementation manner, after receiving the first response message to the call request sent by the called terminal, the calling terminal generates a confirmation message to the first response message, and sends the first response message to the called terminal Confirmation message.

Optionally, the process for the calling terminal to send the confirmation message for the first response message to the called terminal may be as follows: the confirmation message for the first response message sent by the calling terminal is first forwarded to the media server, and then by The media server forwards the confirmation message to the called terminal.

204. After receiving the confirmation message, the called terminal sends a second response message for the confirmation message to the calling terminal, where the second response message is used to indicate that the called terminal has received the confirmation message.

Wherein, the second response message may be a 200 OK (PRACK) message.

In a possible implementation manner, after receiving the confirmation message for the first response information sent by the calling terminal, the called terminal generates a second response message to the confirmation message, and sends the second response message to the calling terminal.

Optionally, the process for the called terminal to send the second response message to the calling terminal may be: the second response message to the confirmation message sent by the called terminal is first forwarded to the media server, and then the media server sends the second response message to the calling terminal. 2. The response message is forwarded to the calling terminal.

205. The called terminal starts ringing and sends a ringing message to the media server, where the ringing message is used to indicate that the called terminal has ringed.

Among them, the ringing message may be a 180 ringing message, and the ringing message may carry media resource information of the called terminal.

In a possible implementation manner, after receiving the confirmation message, the called terminal determines to play the media resource for the calling terminal, generates a ringing message, sends the ringing message to the media server, and starts ringing at the same time.

It should be noted that the process of interaction between the calling terminal and the called terminal in the foregoing step 201 to step 205 through the media server can be forwarded by a network device. For example, when the calling terminal sends the call request and confirmation information to the called terminal, it can be forwarded through the network device between the media server and the called terminal. For another example, in the process of the called terminal sending the first response message and the second response message to the calling terminal, the forwarding may be performed through a network device between the media server and the calling terminal.

206. The media server receives the ringing message sent by the called terminal, and obtains the bit rate information of the media resource to be played.

Among them, the media resource to be played may be any one of video ring back tone, video advertisement, and video customer service. The code rate information is the number of data bits transmitted in a unit time when the media resource is transmitted, and the code rate information may include the maximum code rate of the media resource.

In one possible implementation, the media server can determine whether it is necessary to play media resources for the calling user based on whether the calling user corresponding to the calling terminal or the called user corresponding to the called terminal has subscribed to the service of playing media resources. When either of the calling user and the called user has signed a service for playing media resources, the media server determines that it needs to play the media resources for the calling user. Further, the media server obtains the calling and called order information, performs a query based on the calling and called order information, thereby determining the media resource to be played, and obtains the media resource to be played and the code rate information of the media resource. Among them, the calling and called subscription information may be subscription information of either the calling user or the called user. In addition, the media server can also support the service of playing media resources according to the different attributes of the user, that is, the media server can also use the information of the calling terminal or the called terminal obtained through the CSCF device or the HSS device, such as the calling terminal or the called terminal. The called number, the network to which it belongs, the called user’s age, gender, user credit rating, Internet habits, consumption behavior and other attribute tags, or the called user’s current real-time location, time, etc., are used to determine the media resources to be played.

It should be understood that the media resource acquired by the media server may be in the form of a data packet, and the data packet may carry the media content and code rate information of the media resource.

In the embodiments of the present application, the media server may adopt any of the following implementation methods when acquiring bit rate information:

In a possible implementation manner, the media server parses the data packet of the media resource to obtain the bit rate information carried in the data packet, as shown in FIG. 3, which is a method provided by an embodiment of the present application. Schematic diagram of the method of parsing to obtain code rate information. The media server can be provided with a media processing module. After the media server obtains the media resource to be played, the media processing module can be used to analyze the media resource to be played, that is, to parse the media. The data packet of the resource obtains the bit rate information of the media resource to be played. This process requires the media server itself to add analysis processing logic, that is, to add a new media processing module to obtain the bit rate information of the media resource by analyzing the data packet, and the bandwidth of the media resource can be obtained in real time based on this playback, thereby Can guarantee the smooth progress of bandwidth application.

In another possible implementation manner, the media server obtains bit rate information corresponding to the media resource from the media resource server. Specifically, the media resource server may record the maximum code rate of the media resource in the media resource server when creating the media resource, as the code rate information of the media resource, and add the code rate when subsequently distributing the media resource to the media server In the information field, the recorded code rate information is added to the code rate information field, and the media server obtains the code rate information of the media resource after acquiring the media resource that carries the code rate information. This process requires the media resource server to actively add a code rate information field when distributing media resources. The media server obtains the media resources through the media resource server, and the process is simple, fast, and time-consuming.

For example, FIG. 4 is a schematic diagram of a method for obtaining code rate information by query according to an embodiment of the present application. As shown in FIG. 4, when the media resource server distributes ringtones to the media server, it also sends to the media server. When it requests the media resource to be played, it can directly send the media resource carrying the code rate information to the media server. The media resource 1 in Figure 4 includes the code 1 and code rate 1 of the media resource 1, and the media resource 2 Including the code 2 and code rate 2 of the media resource 2. After obtaining the media resource, the media server can obtain the code rate information in the code rate information field of the media resource.

207. The media server determines a target bandwidth according to the code rate information of the media resource, and the target bandwidth is used to transmit the media resource.

Among them, the target bandwidth is the bandwidth used to transmit media resources.

In a possible implementation manner, after obtaining the code rate information of the media resource to be played, the media server determines the target bandwidth of the media resource according to the code rate information, so as to perform the subsequent bandwidth application process.

Optionally, the media server adopts any of the following methods when determining the target bandwidth:

In one possible implementation, the media server determines the code rate information of the media resource as the target bandwidth. In this process, the media server directly uses the code rate information as the target bandwidth, so that the determined bandwidth can meet the transmission demand of the media resource. .

In another possible implementation manner, the media server adjusts the code rate information of the media resource according to the target increase ratio to obtain the target bandwidth. That is, after the media server obtains the code rate information of the media resource, it determines the product of the code rate information of the media resource and the target floating ratio, and uses the sum of the code rate information of the media resource and the product as the target bandwidth. Wherein, the target floating rate can be a predetermined floating rate set by a technician, such as 10%, and the target bandwidth can be code rate*(1+10%), that is, code rate*110%. It should be noted that because the header of RTP (Real-time Transport Protocol) is generally 44B, and the average dead load size is 1KB, therefore, a 10% increase can ensure safe transmission. In this process, the media The server can also determine the target bandwidth based on the target increase ratio. By setting the target increase ratio of the bit rate information reasonably, it can ensure that the bandwidth meets the transmission requirements of the media resources, while further ensuring the reliability of the video service experience.

208. The media server sends a media negotiation request to the calling terminal, where the media negotiation request carries the target bandwidth.

The media negotiation request may be an UPDATE message, the media negotiation request may carry SDP information of the media server, and the media negotiation request is used for the media server and the calling terminal to negotiate media capabilities. Specifically, the media negotiation request is used by the media server to negotiate the target bandwidth with the calling terminal. The target bandwidth may be located in the target field in the media negotiation request, and the target field is used to indicate the bandwidth to be applied for, that is, the target bandwidth.

It should be noted that the media server may store the UPDATE message template of the media negotiation request. The SDP line of the UPDATE message template may include multiple fields, such as profile idc, profile iop, max-br, etc., where profile idc Represents the media resource pixel information field, profile iop represents the codec level field, which is used to indicate the coding and decoding capabilities of the encoder and decoder, and max-br represents the maximum bandwidth field. Understandably, the UPDATE message template is used by the media server to add according to the instructions Related information to generate the corresponding media negotiation request.

In a possible implementation manner, after determining the target bandwidth, the media server generates a media negotiation request of the media server according to the target bandwidth and the target field in the UPDATE message template, and sends the media negotiation request to the calling terminal.

Optionally, the media server uses any of the following methods when generating the media negotiation request according to the target field:

In one possible implementation, the target field is a newly added field (a field other than max-br). Correspondingly, the process for the media server to generate a media negotiation request can be: the media server can add a field for carrying the target bandwidth in the UPDATE message template, use this field as the target field, and add the target bandwidth to the target field to generate Carry the media negotiation request with the target bandwidth. In this method, the target field may be a newly added field based on an existing field, so that the target bandwidth is notified to the opposite side on the premise of ensuring the original field.

In another possible implementation manner, the target field is the maximum bandwidth field (ie, the max-br field). Correspondingly, the process of the media server generating the media negotiation request may be: the media server directly adds the target bandwidth in the maximum bandwidth field of the UPDATE message template, and generates the media negotiation request carrying the target bandwidth. In this method, by using the existing fields in the media negotiation request to carry the target bandwidth, it will not increase the workload of the sender and receiver to parse the media negotiation request, and can be used in peripheral networks such as terminal equipment, wireless networks, and core networks. It can be implemented without equipment modification, which improves the bandwidth utilization rate and the reliability of media resource playback. It can be used in business scenarios such as video ring back tones, video customer service, and video advertising.

209. The calling terminal receives the media negotiation request, and sends a confirmation response to the media negotiation request to the media server.

Among them, the confirmation response may be a 200 ok response message, and the confirmation response may carry the SDP information of the calling terminal. The confirmation response is used by the media server to negotiate media capabilities with the calling terminal, and the SDP information of the calling terminal is the negotiation result.

The calling terminal can store the format of the 200ok message of the confirmation response. The b=AS line of the 200ok message is used to set the bandwidth to be applied for indicated by the target field in the media negotiation request, and it is also used to indicate the bandwidth to be applied for. Bandwidth, that is, the target bandwidth, the unit can be kbps.

In a possible implementation, after the calling terminal receives the media negotiation request, the calling terminal parses the media negotiation request through the SIP protocol stack and the media module, and can obtain the target bandwidth of the media resource in the target field in the media negotiation request. , And then set the value of b=AS of the 200ok message template according to the target bandwidth to obtain a confirmation response to the media negotiation request carrying the target bandwidth of the media resource, and send the confirmation response to the media server through the network device.

It should be noted that the aforementioned media negotiation request is also transparently transmitted to the calling terminal through the network device, thereby triggering the calling terminal to perform a further media negotiation process.

210. The network device allocates a target bandwidth based on the confirmation response of the calling terminal to the media negotiation request.

In a possible implementation, the network device responds to the calling terminal's confirmation response to the media negotiation request, obtains the target bandwidth carried in the confirmation response, and allocates a target for the media resource according to the bandwidth value corresponding to the target bandwidth bandwidth.

211. In response to the calling terminal's confirmation response to the media negotiation request, the media server transmits the media resource to the calling terminal on the target bandwidth.

In one possible implementation, after the media server receives the calling terminal's confirmation response to the media negotiation request, the media server can send the media resource to be played to the calling terminal at the target bandwidth, and the calling terminal receives the media resource to be played. After the media resource is played, the media resource can be played for the calling user. Alternatively, the media server may also instruct the network device to send the media resource to be played to the calling terminal, thereby achieving the effect of playing the media resource to the calling user.

In a possible implementation, after the network device allocates the target bandwidth to the calling terminal, the active terminal will send a confirmation response to the media server to inform the media server that the target bandwidth has been allocated, and the media server can respond to this reception. The received confirmation response is used to perform the step of transmitting the media resource to the calling terminal on the target bandwidth.

It should be noted that the confirmation response of the aforementioned media negotiation request may be transparently transmitted to the media server through the network device, thereby triggering further processing by the media server.

In the embodiment of the present application, steps 201 to 211 take the ringing phase as an example to explain the application for the bandwidth of the media resource to be played. In addition, in the initiation phase and the conversation phase in a single call process, the corresponding The subscription service is used to apply for the bandwidth of the media resource corresponding to the subscription service. For example, after the media resource is played, the called party picks up the phone and the call is made between the caller and the called party. During the call between the caller and the called party, the media resource can also be played, that is, the media server responds to the called terminal. You can query whether the calling user and the called user have subscribed to the service of playing media resources during the call to determine whether the media resource needs to be played during the call. If either party signs up for the service of playing video, the media can be started. Play the process before proceeding to follow-up operations. It should be noted that the media resource can be played at the same time for the calling user and the called user during the playback stage, or it can be played only for either party. The media resource for this playback can be the same as the media resource in the ringing stage, or it can be the master The media resource determined after renegotiating between the called terminal and the called terminal. If the media resource is determined after renegotiating, the media server can re-determine the code rate information of the media resource, and then determine the target bandwidth according to the code rate information, and then The media resource is transmitted on the applied target bandwidth.

In the technical solution provided by the embodiments of the present application, the media server determines the bandwidth for transmitting the media resource based on the code rate information of the media resource, and carries the bandwidth in the media negotiation request and sends it to the terminal, so that the terminal can be based on the received Bandwidth is used to apply for bandwidth, and then to realize the transmission of media resources. Since the bandwidth application is based on the bit rate information, the waste of bandwidth resources is avoided during the transmission process, and bandwidth utilization is improved, which is beneficial to the rapid promotion of video services. At the same time, it reduces the failure of video bearer establishment and the occupation of other low-priority bandwidth and non-proprietary bandwidth due to multiple applications for bandwidth without reason, and reduces related complaints.

The above Figure 2 illustrates the media negotiation between the calling terminal and the media server on the target bandwidth, and then playing media resources for the calling terminal as an example. In another possible implementation, if you want to play media for the called user Resources, the called terminal and the media server can negotiate the target bandwidth through media, and transmit the media resources to the called terminal, and then play the media resources for the called user. Fig. 5 is a flowchart of a media resource transmission method provided by an embodiment of the present application. This method can be applied in the application scenario shown in FIG. 1, of course, can also be applied in other communication scenarios, and the embodiment of the present application is not limited herein.

501. The calling terminal sends a call request to the called terminal.

502. After receiving the call request, the called terminal sends a first response message to the call request to the calling terminal, where the first response message is used to indicate that the called terminal has received the call request.

503. After receiving the first response message, the calling terminal sends a confirmation message to the called terminal, where the confirmation message is used to indicate that the calling terminal has received the first response message sent by the called terminal.

504. After receiving the confirmation message, the called terminal sends a second response message for the confirmation message to the calling terminal, where the second response message is used to indicate that the called terminal has received the confirmation message.

505. The called terminal starts ringing and sends a ringing message to the media server, where the ringing message is used to indicate that the called terminal has ringed.

506. The media server receives the ringing message sent by the called terminal, and obtains the bit rate information of the media resource to be played.

507. The media server determines a target bandwidth according to the code rate information of the media resource, where the target bandwidth is used to transmit the media resource.

The content of the above step 501 to step 507 is the same as the content of step 201 to step 207, and will not be repeated here.

508. The media server sends a media negotiation request to the called terminal, where the media negotiation request carries the target bandwidth.

509. The called terminal receives the media negotiation request, and sends a confirmation response to the media negotiation request to the media server.

510. The network device allocates the target bandwidth based on the confirmation response of the called terminal to the media negotiation request.

511. The media server transmits the media resource to the called terminal on the target bandwidth in response to the called terminal's confirmation response to the media negotiation request.

It should be understood that the difference between the above steps 508 to 511 and steps 208 to 211 is: step 208 to step 211 are media negotiation between the media server and the calling terminal, and step 508 to step 511 are the media server and the receiving terminal. It is called media negotiation between terminals, so the detailed content will not be repeated.

It should be noted that the network devices in FIG. 2 and FIG. 5 may be the network device on the calling terminal side and the network device on the called terminal side. For example, if the calling terminal and the media server are both on the calling terminal side, the interaction between the calling terminal and the media server is realized through the network equipment on the calling side. If the media server is on the called side, the calling terminal The network equipment used in the interaction between the terminal and the media server includes the network equipment on the calling side and the network equipment on the called side. Similarly, if the called terminal and the media server are both on the called terminal side, the interaction between the called terminal and the media server is realized through the network equipment on the called side. If the media server is on the calling side, the The network equipment used in the interaction process between the calling terminal and the media server includes the network equipment on the calling side and the network equipment on the called side.

The media negotiation for the target bandwidth in the embodiment of the present application may be completed by the calling terminal, and then play media resources for the calling user, or may be completed by the called terminal, and then play media resources for the called user.

Fig. 6 is a schematic structural diagram of a media resource transmission device provided by an embodiment of the present application. Referring to Fig. 6, the media resource transmission device includes an acquisition module 601, a determination module 602, a sending module 603, and a transmission module 604, in which:

The obtaining module 601 is used to perform steps 206 and 506;

The determining module 602 is used to perform steps 207 and 507;

The sending module 603 is used to perform steps 208 and 508;

The transmission module 604 is used to perform steps 211 and 511.

In a possible implementation manner, the obtaining module 601 is configured to perform the process of parsing and obtaining code rate information in steps 206 and 506.

In a possible implementation manner, the obtaining module 601 is configured to perform the process of querying and obtaining code rate information in steps 206 and 506.

In a possible implementation manner, the determining module 602 is configured to perform the process of determining the code rate information as the target bandwidth and determining the target bandwidth based on the target floating ratio in steps 207 and 507.

In a possible implementation manner, the media resource is any one of a video ring back tone, a video advertisement, and a video customer service.

In a possible implementation manner, the target field is the maximum bandwidth field.

In a possible implementation manner, the target bandwidth is bandwidth allocated by the network device based on the target terminal's confirmation response to the media negotiation request.

It should be noted that when the media resource transmission device provided in the above embodiment performs media resource transmission, only the division of the above functional modules is used as an example for illustration. In practical applications, the above functions can be allocated to different functional modules according to needs. Complete, that is, divide the internal structure of the device into different functional modules to complete all or part of the functions described above. In addition, the media resource transmission method embodiments provided in the foregoing embodiments belong to the same concept, and the specific implementation process is detailed in the method embodiments, which will not be repeated here.

FIG. 7 is a schematic structural diagram of a server provided by an embodiment of the present application. The server 700 includes relatively large differences due to different configurations or performance, and may include one or more processors 701 and one or more memories 702 Wherein, at least one instruction is stored in the memory 702, and the at least one instruction is loaded and executed by the processor 701 to implement the media resource transmission method provided in each of the foregoing method embodiments. Of course, the server 700 may also have components such as a wired or wireless network interface, a keyboard, an input and output interface for input and output, and the server 700 may also include other components for implementing device functions, which are not described here. The processor can be a central processing unit (CPU), graphics processing unit (GPU), tensor processing unit (TPU), neural network processing unit (NPU) ), brain processing unit (BPU), deep learning processing unit (DPU), holographic processing unit (HPU), vector processing unit (VPU), and intelligence Any processor such as a processor (intelligence processing unit, IPU).

The processor 701 may adopt a general CPU, a microprocessor, an application specific integrated circuit (application specific integrated circuit, ASIC), a GPU, or one or more integrated circuits for executing related programs to implement the aforementioned media resource transmission method.

The processor 701 may also be an integrated circuit chip with signal processing capability. In the implementation process, each step of the media resource transmission method of the present application can be completed by an integrated logic circuit of hardware in the processor 701 or instructions in the form of software. The aforementioned processor 701 may also be a general purpose processor, a digital signal processing (digital signal processing, DSP), ASI, an off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gates or transistors. Logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in random access memory (RAM), flash memory, read-only memory (read-only memory, ROM), programmable read-only memory or electrically erasable programmable memory, registers and other mature storage media in the field middle. The storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702, and combines its hardware to complete the functions required by the modules included in the media resource transmission apparatus of the embodiment of the present application, or execute the medium of the method embodiment of the present application Resource transmission method.

In an exemplary embodiment, a computer storage medium is also provided. The computer storage medium may be a computer-readable storage medium, such as a memory including instructions, which may be executed by a processor in a terminal to complete Media resource transmission method. For example, the computer-readable storage medium may be ROM, RAM, compact disc read-only memory (CD-ROM), magnetic tape, floppy disk, optical data storage device, etc. This application also provides a media resource transmission system, which includes a media server, a target terminal and a network device. In a possible implementation manner, the media server, the target terminal, and the network device are respectively used to execute the methods executed by the media server, the calling terminal, and the network device in the media resource transmission method provided in the embodiment shown in FIG. 2. In another possible implementation manner, the media server, the target terminal, and the network device are respectively used to execute the methods executed by the media server, the called terminal, and the network device in the media resource transmission method provided in the embodiment shown in FIG. 5 .

A person of ordinary skill in the art can understand that all or part of the steps in the above embodiments can be implemented by hardware, or by a program to instruct relevant hardware. The program can be stored in a computer-readable storage medium. The storage medium mentioned can be a read-only memory, a magnetic disk or an optical disk, etc.

It should be noted that those of ordinary skill in the art may realize that the units, modules, chips, and method steps of the examples described in the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been described generally in terms of function in the above description. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the system, device, module, unit or chip described above can refer to the corresponding process in the embodiment of the media resource transmission method. No longer.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of modules in the device or the units in the modules is only a logical function division. In actual implementation, there may be other division methods, such as multiple divisions. Modules or units can be combined or integrated into another system, or some features can be omitted or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may also be electrical, mechanical or other forms of connection.

The modules or units described as separate components may or may not be physically separate, and the components displayed as modules or units may or may not be physical modules or physical units, that is, they may be located in one place or distributed To multiple computer devices or chips. Some or all of the modules or units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments of the present application.

In addition, each functional module or unit in each embodiment of the present application may be integrated into a target processing module, or each module or unit may exist alone physically, or two or more modules or units may be integrated into one. Target processing module. The above-mentioned integrated modules or units can be implemented in the form of hardware or software functional units.

The above are only optional embodiments of this application and are not intended to limit this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection of this application. Within range.

Claims

A media resource transmission method, characterized in that the method includes:

Obtain code rate information of the media resource to be played of the target terminal;

Determine a target bandwidth according to the code rate information of the media resource, where the target bandwidth is used to transmit the media resource;

Sending a media negotiation request to the target terminal, where the media negotiation request carries the target bandwidth;

In response to the target terminal's acknowledgment response to the media negotiation request, the media resource is transmitted to the target terminal on the target bandwidth.
The method according to claim 1, wherein said obtaining the code rate information of the media resource to be played of the target terminal comprises:

Analyze the data packet of the media resource to obtain the bit rate information carried in the data packet.
The method according to claim 1, wherein said obtaining the code rate information of the media resource to be played of the target terminal comprises:

Obtain the bit rate information corresponding to the media resource from the media resource server.
The method according to any one of claims 1 to 3, wherein the determining the target bandwidth according to the code rate information of the media resource comprises any one of the following:

Determining the code rate information of the media resource as the target bandwidth;

The code rate information of the media resource is adjusted according to the target increase ratio to obtain the target bandwidth.
The method according to any one of claims 1 to 4, wherein the target bandwidth is located in a target field in the media negotiation request, and the target field is used to indicate the bandwidth to be applied for.
The method according to claim 5, wherein the target field is a maximum bandwidth field.
The method according to any one of claims 1 to 6, wherein the target bandwidth is a bandwidth allocated by the network device based on an acknowledgement response of the target terminal to the media negotiation request.
A media resource transmission device, characterized in that the device includes:

The obtaining module is used to obtain the code rate information of the media resource to be played of the target terminal;

A determining module, configured to determine a target bandwidth according to the code rate information of the media resource, where the target bandwidth is used to transmit the media resource;

A sending module, configured to send a media negotiation request to the target terminal, where the media negotiation request carries the target bandwidth;

The transmission module is configured to transmit the media resource to the target terminal on the target bandwidth in response to the target terminal's acknowledgment response to the media negotiation request.
The device according to claim 8, wherein the acquisition module is configured to:

Analyze the data packet of the media resource to obtain the bit rate information carried in the data packet.
The device according to claim 8, wherein the acquisition module is configured to:

Obtain the bit rate information corresponding to the media resource from the media resource server.
The device according to any one of claims 8 to 10, wherein the determining module is configured to perform any one of the following steps:

Determining the code rate information of the media resource as the target bandwidth;

The code rate information of the media resource is adjusted according to the target increase ratio to obtain the target bandwidth.
The apparatus according to any one of claims 8 to 11, wherein the target bandwidth is located in a target field in the media negotiation request, and the target field is used to indicate the bandwidth to be applied for.
The apparatus according to claim 12, wherein the target field is a maximum bandwidth field.
The apparatus according to any one of claims 8 to 13, wherein the target bandwidth is a bandwidth allocated by a network device based on an acknowledgement response of the target terminal to the media negotiation request.
A server, wherein the server includes a processor and a memory, and at least one instruction is stored in the memory, and the instruction is loaded and executed by the processor to implement any one of claims 1 to 7 The operations performed by the media resource transmission method described in item.
A computer storage medium, wherein at least one instruction is stored in the storage medium, and the instruction is loaded and executed by a processor to implement the media resource transmission method according to any one of claims 1 to 7 The operation performed.