CN103503512B - Distribution of services control method and equipment - Google Patents

Abstract

The embodiments of the present invention relate to a service distribution control method and equipment. A method includes: acquiring service flow information of a terminal, the service flow information at least including a service identifier requested by the terminal and service flow quintuple information; according to the service flow information, and at least one of the terminal user subscription information and network status, searching The preset service strategy, determine the first service transmission control strategy and the first service optimization control strategy; issue the first service transmission control strategy to the policy and charging execution function entity PCEF, so that PCEF Resource allocation is performed on the service requested by the terminal, and the first service optimization control strategy is issued to the CDF, so that the CDF optimizes the service transmitted to the terminal according to the first service optimization control strategy.

Description

Service distribution control method and device

technical field

The embodiments of the present invention relate to the field of communication technologies, and in particular, to a method and device for controlling service distribution.

Background technique

Currently, in mobile networks, mobile data traffic such as videos and pictures is increasing rapidly. The evolution and development of mobile networks still cannot avoid the limitations of wireless communication. The bandwidth stability of wireless access networks is poor, and there are spectrum resource bottlenecks. challenge.

In the prior art, the content delivery network (Content Delivery Network, CDN) can cache the hot business content or the business content provided by the content provider with the cooperative relationship in advance in the caching node closer to the user, reducing the service data transmission delay and Save network settlement. The cache node can also provide adaptive transcoding services for services through service optimization technology, so that the service code rate can adapt to the network transmission bandwidth and terminal service processing capabilities. However, when a user has a large number of visits to a certain service, it will still cause network congestion and affect the normal service of the user.

Contents of the invention

The embodiment of the present invention provides a service distribution control method, which enables different services of different users to reasonably occupy network resources, optimizes service content, avoids network congestion, and ensures normal service experience of users.

On the one hand, an embodiment of the present invention provides a service distribution control method, including:

Obtaining service flow information of the terminal, the service flow information at least including the service identifier requested by the terminal and service flow quintuple information;

According to the service flow information and at least one of the user subscription information of the terminal and the network state, search for a preset service strategy, and determine a first service transmission control strategy and a first service optimization control strategy;

issuing the first service transmission control strategy to the policy and charging enforcement function entity PCEF, so that the PCEF performs resource allocation for the service requested by the terminal according to the first service transmission control strategy, and assigns the first A service optimization control strategy is issued to the content distribution functional entity CDF, so that the CDF optimizes services transmitted to the terminal according to the first service optimization control strategy.

The embodiment of the present invention also provides a service distribution control method, including:

Obtaining service flow information of the terminal according to the acquired first service request of the terminal, the service flow information at least including the service identifier requested by the terminal and service flow quintuple information;

reporting the service flow information to the policy and charging rule functional entity PCRF, so that the PCRF searches for a corresponding service policy according to the service flow information and at least one of the user subscription information and network status of the terminal, determining a first service transmission control strategy and a first service optimization control strategy;

If the first service optimization control policy delivered by the PCRF is received, optimize the service transmitted to the terminal according to the first service optimization control policy.

The embodiment of the present invention also provides a service distribution control method, including:

Receive the first service transmission control policy issued by the policy and charging rules functional entity PCRF, the first service transmission control policy is determined by the PCRF according to the service flow information of the service requested by the terminal and at least the user subscription of the terminal One of information and network status, find the corresponding business policy, determined;

According to the first transmission control policy, resource allocation is performed on the service requested by the terminal.

On the other hand, the embodiment of the present invention also provides a policy and charging rule functional entity PCRF, including:

a receiver, configured to acquire service flow information of the terminal, where the service flow information at least includes a service identifier requested by the terminal and service flow quintuple information;

A processor, configured to search for a preset service strategy according to the service flow information, at least one of the user subscription information of the terminal and the network status, and determine a first service transmission control strategy and a first service optimization control strategy;

A sender, configured to send the first service transmission control policy to a policy and charging enforcement function entity PCEF, so that the PCEF performs resource allocation for the service requested by the terminal according to the first service transmission control policy Sending the first service optimization control policy to a content distribution function entity CDF, so that the CDF optimizes services transmitted to the terminal according to the first service optimization control policy.

The embodiment of the present invention also provides a traffic detection functional entity TDF, including:

a receiver, configured to acquire a first service request of a terminal; and also used to receive the first service optimization control strategy issued by the PCRF;

A processor, configured to obtain service flow information of the terminal according to the first service request, where the service flow information includes at least a service identifier and service flow quintuple information requested by the terminal;

a sender, configured to report the service flow information to the policy and charging rule functional entity PCRF, so that the PCRF searches for the Corresponding to the service policy, a first service transmission control policy and a first service optimization control policy are determined.

The embodiment of the present invention also provides a content distribution functional entity CDF, including:

The receiver is configured to receive the first service optimization control strategy, and the first service optimization control strategy is searched by the policy and charging rule function entity PCRF according to the service flow information, and at least one of the user subscription information of the terminal and the network status. business strategy, determined;

The controller is configured to, if the receiver receives the first service optimization control strategy, optimize the service transmitted to the terminal according to the first service optimization control strategy.

The embodiment of the present invention also provides a policy and charging enforcement function entity PCEF, including:

The receiver is configured to receive the first service transmission control policy issued by the policy and charging rules functional entity PCRF, and the first service transmission control policy is determined by the PCRF according to the service flow information of the service requested by the terminal and at least the One of the user subscription information and network status of the terminal, to find the corresponding business policy, determined;

A processor, configured to perform resource allocation on services requested by terminals according to the first transmission control policy.

In the service distribution control method and equipment provided by the embodiments of the present invention, the PCRF dynamically determines the service transmission control strategy and the service optimization control strategy according to the service information requested by the terminal, user subscription information, and network status, and lowers the service transmission control strategy to Send it to the PCEF, so that the PCEF can allocate resources to the terminal's business; send the business optimization control strategy to the CDF, so that the CDF can optimize the business transmitted to the terminal. In this way, different services of different users can reasonably occupy network resources, and optimize the business content to avoid network congestion and ensure users' normal service experience.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic flowchart of an embodiment of a service distribution control method provided by the present invention;

FIG. 2 is a schematic flowchart of another embodiment of the service distribution control method provided by the present invention;

FIG. 3 is a schematic flowchart of another embodiment of the service distribution control method provided by the present invention;

Fig. 4a is a schematic flowchart of another embodiment of the service distribution control method provided by the present invention;

Fig. 4b is a schematic flowchart of another embodiment of the service distribution control method provided by the present invention;

Fig. 5a is a schematic flowchart of an embodiment of the service distribution control method provided by the present invention;

Fig. 5b is a schematic flowchart of an embodiment of the service distribution control method provided by the present invention;

Fig. 6a is a schematic flowchart of an embodiment of the service distribution control method provided by the present invention;

Fig. 6b is a schematic flowchart of an embodiment of the service distribution control method provided by the present invention;

FIG. 7 is a schematic structural diagram of an embodiment of the policy and charging rule functional entity PCRF provided by the present invention;

FIG. 8 is a schematic structural diagram of an embodiment of the traffic detection functional entity TDF provided by the present invention;

FIG. 9 is a schematic structural diagram of another embodiment of the traffic detection functional entity TDF provided by the present invention;

FIG. 10 is a schematic structural diagram of an embodiment of the content distribution function entity CDF provided by the present invention;

FIG. 11 is a schematic structural diagram of another embodiment of the content distribution function entity CDF provided by the present invention;

FIG. 12 is a schematic structural diagram of an embodiment of the policy and charging enforcement function entity PCEF provided by the present invention;

Fig. 13 is a schematic structural diagram of another embodiment of the policy and charging enforcement function entity PCEF provided by the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Fig. 1 is a schematic flow chart of an embodiment of a service distribution control method provided by the present invention. As shown in Fig. 1, the method includes:

S101. Obtain service flow information of the terminal, where the service flow information at least includes a service identifier requested by the terminal and service flow quintuple information;

S102. According to the service flow information, and at least one of the user subscription information of the terminal and the network status, search for a preset service strategy, and determine a first service transmission control strategy and a first service optimization control strategy;

S103. Send the first service transmission control strategy to the policy and charging enforcement function entity PCEF, so that the PCEF performs resource allocation for the service requested by the terminal according to the first service transmission control strategy, and sends the first service optimization control strategy to the The content distribution functional entity CDF enables the CDF to optimize the service transmitted to the terminal according to the first service optimization control strategy.

The subject of execution of the above steps is the Policy and Charging Rule Function (Policy and Charging Rule Function, PCRF).

Optionally, the service flow information of the terminal (User Equipment, UE) may be reported to the PCRF by a traffic detection function (Traffic Detection Function, TDF), and may also be reported to the PCRF by a content delivery function (ContentDelivery Function, CDF).

Specifically, the TDF can intercept various service requests sent by the terminal to the service content source or the CDF. The service request can be a Hyper Text Transfer Protocol (Hyper Text Transfer Protocol, HTTP) Get request, and the requested service type can be a video playback request, Web access requests and more. The TDF can identify the category of the service according to the uniform resource locator (Uniform Resource Locator, URL) carried in the intercepted service request, and determine information such as the service identifier and the five-tuple information of the service flow, wherein the five-tuple information of the service flow includes : Point to the source IP address and port number of the CDF, point to the destination IP address and port number of the terminal, and the transmission control protocol (Transmission Control Protocol, TCP) adopted by the service.

The operations of intercepting terminal service requests and further obtaining terminal service flow information performed by the above TDF can also be performed by the improved CDF. The improvement to CDF can be, for example: adding a service flow detection function to the existing CDF unit, and add an interface to interact with PCRF on CDF.

After the TDF or CDF reports the service flow information of the terminal to the PCRF, the PCRF can search for the preset service policy according to the service flow information, at least one of the user subscription information of the terminal and the network status, and determine the first service transmission control policy and the second service transmission control policy. 1. A business optimization control strategy. Among them, the service policy is a dynamic policy preset by PCRF for performing differentiated control according to different types of services requested by different terminals in different network environments. The dynamic policy specifically includes the Service flow templates, billing methods, service transmission Quality of Service (QoS), gate control information, etc. for service transmission, as well as authorized maximum service bandwidth for determining service optimization control policies, service optimization indication information, etc. Among them, the service flow template is used by PCEF to identify the service data flow, so as to associate the service data flow with the corresponding transmission bearer; the charging method indicates whether it is online charging or offline charging, and whether it is charged according to traffic, duration or event; Service transmission service quality includes QoS class identifier (QoS ClassIdentifier), maximum bit rate (Maximum Bit Rate, MBR), guaranteed bit rate (Guaranteed BitRate, GBR), allocation and retention priority (Allocation and Retention Priority, ARP) and other parameters, It is used for PCEF to establish a service transmission bearer; the gating information includes the gating status, and the gating status is open, indicating that the transmission of the current video data stream is allowed, otherwise the transmission is prohibited; the authorized maximum service bandwidth is the maximum transmission bandwidth of the transmission service, which is used to limit Code rate conversion performed by CDF on services; service optimization indication is used to allow or prohibit CDF from optimizing services.

Taking the video service as an example, the preset service strategy on the PCRF can be reflected in the following aspects:

Differentiated control is provided according to the source of the video. For example, best-effort transmission QoS is provided for the third-party content (Over The Top, OTT) video transmitted on the operator network from the Internet (Internet) and not controlled by the operator. Do optimization processing; provide high-priority transmission QoS for videos from cooperative third-party content providers (Business to Business, B2B) or operators' self-operated (Business to Client, B2C) videos, and implement video optimization processing , to adapt the terminal playback capability and transmission bandwidth;

Realize differentiated control according to the user's video level, for example: assign different transmission bandwidth and video optimization control to users of different levels, gold users can allocate the highest video transmission bandwidth and provide video optimization services; silver users can allocate medium video transmission bandwidth, and provide video optimization services; Bronze users can allocate lower bandwidth, and do not provide video optimization services;

Realize differentiated control according to the video types subscribed by users, for example: only provide bandwidth guarantee and video optimization processing for videos subscribed by users, and only provide best-effort services for non-subscribed videos.

Based on the above-mentioned factors for setting the service policy, the formed service policy of the video service may include, for example: video policy 1, corresponding to high-priority video bearer, maximum 2M video bandwidth, allowing CDF to optimize video processing; video policy 2, Corresponding to high-priority video bearer, the maximum video bandwidth is 1M, allowing CDF to optimize video processing; video policy 3, corresponding to low-priority (best effort) transmission bearer, maximum 500K video bandwidth, allowing CDF to optimize video processing; Video policy 4, corresponding to low priority (best effort) transmission bearer, maximum video bandwidth of 500K, does not allow CDF to optimize video processing, etc.

The above only takes the business as an example to illustrate the business strategy preset by PCRF. It is understandable that PCRF can set or modify the business strategy according to actual needs, or according to the actual adjustment effect of the business transmission control strategy and the business optimization control strategy. .

After the PCRF receives the service flow information of the terminal, it can find the user subscription information of the terminal according to the service identification requested by the terminal carried in the service flow information and the service flow quintuple information, wherein the user subscription information can be obtained from the home subscription server ( Home Subscriber Server, HSS)/Home Location Register (Home Location Register, HLR) and other network elements. The PCRF may further determine the first service transmission control strategy and the first service optimization control strategy according to the user's service flow information, user subscription information and current network status.

The PCRF may send the first service transmission control policy to the PCEF, and the policy and charging enforcement entity (Policy and Charging Enforcement, Function, PCEF), and the PCEF performs the operation of allocating resources for the service requested by the terminal. Specifically, it may be: modify the terminal to The bearer of the PCEF meets the QoS requirements of the service requested by the terminal.

After the PCEF performs the resource allocation operation, it returns a response message to the PCRF. If the response message indicates that the resource allocation operation is successful, the PCRF may issue the first service optimization control policy to the CDF through the TDF, or may issue the first service optimization control policy to the CDF. The policy is directly issued to the CDF, an interface that interacts with the PCRF, and the CDF performs the operation of optimizing the service transmitted to the terminal. The first service optimization control strategy may indicate whether to allow the CDF to optimize the service transmitted to the terminal and the type of operation allowed to be optimized. If allowed, the CDF may perform format conversion, code rate compression conversion and other operations on the service data sent to the terminal, To make the transmitted service data match the processing capability of the terminal or the maximum authorized bandwidth; if not allowed, the CDF can directly obtain the corresponding service from the local cache or from the content source of the service requested by the terminal and send it to the terminal.

If the response information indicates that the PCEF resource allocation operation fails, the PCRF can issue an error indication to the CDF through the TDF, or can directly issue the error indication to the CDF that has an interactive interface with the PCRF, so that the CDF stops transmitting services to the terminal .

When the user subscription information of the terminal changes, or the network status changes, the PCRF can adjust the service transmission control strategy delivered to the PCEF according to the changed user subscription information and/or network status, so that the PCEF can control the service of the terminal request. Resource allocation is adapted to the terminal's own contracted service and network conditions; the service optimization control strategy issued to the CDF matches the terminal's own business processing capabilities and network status.

In the service distribution control method provided by the embodiment of the present invention, the PCRF dynamically determines the service transmission control strategy and the service optimization control strategy according to the service information requested by the terminal, user subscription information and network status, and issues the service transmission control strategy to the The PCEF enables the PCEF to allocate resources for the services of the terminal; sends the service optimization control strategy to the CDF, so that the CDF optimizes the services transmitted to the terminal. In this way, different services of different users can reasonably occupy network resources, and optimize the business content to avoid network congestion and ensure users' normal service experience.

Fig. 2 is a schematic flowchart of another embodiment of the service distribution control method provided by the present invention. As shown in Fig. 2, the method includes:

S201. Obtain service flow information of the terminal according to the obtained first service request of the terminal, where the service flow information includes at least a service identifier requested by the terminal and service flow quintuple information;

S202. Report the service flow information to the policy and charging rule functional entity PCRF, so that the PCRF can search for the corresponding service policy according to the service flow information, at least one of the user subscription information of the terminal and the network status, and determine the first service transmission control strategy and first business optimization control strategy;

S203. If the first service optimization control policy issued by the PCRF is received, optimize the service transmitted to the terminal according to the first service optimization control policy.

The execution subject of the above steps may be the TDF, or the CDF added with a unit having a service flow detection function and an interface for interacting with the PCRF.

When the execution subject of the above steps is TDF, TDF can intercept various service requests sent by the terminal to the service content source or CDF, and can identify the service location according to the uniform resource locator (Uniform Resource Locator, URL) carried in the intercepted service request. The category described above determines the service identifier and the five-tuple information of the service flow, including: the source IP address and port number pointing to the CDF, the destination IP address and port number pointing to the terminal, and the TCP used by the service.

TDF can report the service flow information carrying service identification and service flow quintuple information to PCRF, and when PCRF returns the first service transmission control policy or error information to TDF, TDF can directly send the first service transmission control policy to CDF Or, the TDF may carry the first service transmission control policy in the service request of the terminal and return it to the CDF.

When it needs to be explained, if the PCRF re-determines the issued service optimization control strategy according to the changed user subscription information and/or network status, the TDF can directly issue the service optimization control strategy re-delivered by the PCRF to the CDF; Alternatively, after intercepting another service request from the terminal for the same service, the TDF may include the service transmission control policy re-delivered by the PCRF in the service request and return it to the CDF.

Optionally, after the TDF receives the first service optimization control strategy issued by the PCRF for various service requests, it may only forward the optimization control strategy corresponding to the service request that is allowed to be optimized to the CDF for optimization processing, and does not allow The optimized control strategy corresponding to the optimized service request may not be forwarded to the CDF, but directly sent to the service provider source.

Optionally, TDF can preset a list of domain names or URLs. When TDF intercepts a service request sent by a terminal, if the domain name or URL contained in the service request exists in the pre-configured list, TDF can directly send the service request Subsequent optimization processing for CDF; if the domain name or URL contained in the service request does not exist in the pre-configured list, TDF will not send the service request to CDF for optimization processing, but directly send it to the service provider source. There is no interaction process between TDF and PCRF in this process.

Optionally, the TDF can also directly forward all service requests directed to one or some ports (for example: port 80) to the CDF for subsequent processing, and the CDF judges whether to optimize the current service. There is no interaction process between TDF and PCRF in this process.

When the execution subject of the above steps is to add a unit with a service flow detection function and add a CDF of an interface interacting with PCRF, the service request sent by the terminal can be detected by the unit with a service flow detection function added in the CDF, and then obtained The service identifier and service quintuple information are reported to the PCRF through the added interface for interacting with the PCRF. When the interface interacting with the PCRF receives the first service transmission control policy issued by the PCRF, if the first service transmission control policy CDF allows optimization of the service transmitted to the terminal, the CDF can format the service data sent to the terminal Conversion, code rate compression conversion and other operations, so that the transmitted service data matches the processing capability of the terminal or the maximum authorized bandwidth; if not allowed, the CDF can be directly obtained from the local cache or from the content source of the service requested by the terminal Obtain the corresponding service and send it to the terminal; if the error message sent by the PCRF is received, the CDF stops transmitting the service to the terminal.

If the PCRF re-determines the delivered service optimization control strategy according to the changed user subscription information and/or network status, after the CDF receives the service transmission control strategy re-delivered by the PCRF, it can The control policy optimizes the services sent to the terminal.

In the service distribution control method provided by the embodiment of the present invention, the TDF or CDF can report the service flow information corresponding to the terminal service request to the PCRF, and the PCRF can dynamically determine the service according to the service information, user subscription information and network status of the service requested by the terminal Optimize the control strategy and send it to the CDF directly, or send it to the CDF through the TDF, so that the CDF can optimize the service transmitted to the terminal. In this way, different services of different users can reasonably occupy network resources, and optimize the business content to avoid network congestion and ensure users' normal service experience.

FIG. 3 is a schematic flowchart of another embodiment of the service distribution control method provided by the present invention. As shown in FIG. 3, the method includes:

S301. Receive the first service transmission control strategy issued by the policy and charging rules functional entity PCRF, the first service transmission control strategy is determined by the PCRF according to the service flow information of the service requested by the terminal, and at least the user subscription information and network status of the terminal One, find the corresponding business strategy, sure;

S302. According to the first transmission control strategy, perform resource allocation for the service requested by the terminal.

The execution subject of the above steps may be the PCEF, and the PCEF may be a network element set independently, or a network element integrated with the TDF and/or CDF.

After the PCEF receives the first service transmission control strategy issued by the PCRF, according to the first service transmission control strategy, if there is no available bearer between the terminal and the PCEF, the PCEF can create a new bearer for the service requested by the terminal; if the terminal and the PCEF If there is an available bearer, the PCEF can modify information such as QoS and traffic flow template (Traffic FlowTemplate, TFT) of the current bearer.

If the resource allocation operation is executed successfully, the PCEF can indicate the success of the resource allocation operation through the response message returned to the PCRF, so that the PCRF can send the service optimization control policy to the CDF; if the resource allocation operation fails, the PCEF can indicate the resource allocation through the response message If it fails, the PCRF sends an error message to the CDF, instructing the CDF to stop transmitting the corresponding service to the terminal.

Furthermore, when the user subscription information of the terminal changes, or the network status changes, the PCRF can dynamically adjust the service transmission control strategy delivered to the PCEF, and the PCEF can adjust the terminal request service according to the service transmission control strategy re-determined by the PCRF. Resource allocation, so as to adapt to the terminal's own subscription service and network conditions.

In the service distribution control method provided by the embodiment of the present invention, the PCRF can dynamically determine the service transmission control strategy according to the service information requested by the terminal, user subscription information and network status, and send it to the PCEF, so that the PCEF can control the service transmitted by the terminal Make resource allocation. In this way, different services of different users can reasonably occupy network resources, and optimize the business content to avoid network congestion and ensure users' normal service experience.

Fig. 4a is a schematic flow diagram of another embodiment of the service distribution control method provided by the present invention. As shown in Fig. 4a, in this embodiment, PCEF, TDF and CDF are independently set network elements, and the above-mentioned independently set The process of the network element implementing the service distribution control method is described in detail. The method includes:

S401a, the UE attaches to the network to establish a Packet Data Protocol (Package Data Protocol, PDP) context or a mobile core network evolution (Evolved Packet Core, EPC) default bearer.

S402a. The UE initiates a first service request, and the first service request is redirected to or terminated at the CDF network element.

Wherein, the first service request is redirected to the CDF means: after the service source receives the first service request sent by the UE, the service source or the domain name resolution system instructs the terminal to re-initiate the first service request directed to the CDF; the first service request ends In the CDF, it refers to: the first service request sent by the terminal to the service source, and finally the CDF responds to the service request.

The first service request is an HTTP Get request, which may request services such as video services, picture services, text services, or Web browsing services, which will not be listed here.

Taking the first service request sent by the UE as a video request as an example, if the video requested by the UE adopts the adaptive download (Adaptive Download) method, the UE first requests the CDF network element to obtain the manifest file, and then A video service request is sent sequentially for each video frequency band; if the video requested by the UE adopts a progressive download (Progressive Download) method, the UE can request to obtain the entire video file through a video service request.

S403a, the first service request sent by the UE is intercepted by the TDF.

S404a. The TDF identifies the service category according to the URL in the first service request, and determines the video identifier and service flow quintuple information corresponding to the service.

Among them, the TDF can obtain the quintuple information of the video service flow according to the service request: the source IP address and port number pointing to the CDF, and the destination IP address and port number pointing to the UE.

S405a. The TDF reports the service flow information to the PCRF, and the service flow information includes the service identifier requested by the UE and the service flow quintuple information.

S406a. The PCRF searches for preset service policies according to service flow information, at least one of user subscription information and network status, and determines a first service transmission control policy and a first service optimization control policy.

If the UE requests a video service, the PCRF needs to bind the video session with the Packet Data Network (PDN) session according to the IP address of the UE.

Wherein, the first service transmission control strategy may include information such as service flow template, charging method, QoS, and gate control, and the first service transmission control strategy corresponds to the existing policy and charging control (Policy Charging Control, PCC) rule.

The first service optimization control strategy may include information such as authorized maximum video bandwidth, gating information, and whether to allow video optimization instructions. The first service optimization control strategy may be determined by the PCRF according to actual needs, or it may detect existing applications It is obtained by extending the indication information element of the control (Application Detection and Control, ADC) rule.

S407a. The PCRF delivers the first service optimization control policy to the PCEF.

S408a. The PCEF executes the first service optimization control strategy. If there is no available bearer between the UE and the PCEF, create a new service bearer; if there is an available bearer, modify information such as QoS and TFT of the current bearer.

S409a, the PCEF returns a response message to the PCRF.

The response information may indicate whether the PCEF succeeds or fails in performing the resource allocation operation of the service requested by the UE.

S410a. If the response message indicates that the resource allocation operation of the service requested by the UE is successfully performed by the PCEF, the PCRF sends the first service optimization control policy to the TDF, otherwise, sends an error message to the TDF.

Wherein, the error information may be a parameter such as a reason value.

S411a. The TDF returns the first service optimization control strategy or error information to the CDF in the first service request.

Wherein, the TDF adds the extended first service optimization control strategy or error information to the User Agent header field in the HTTP Get request, and then forwards it to the CDF.

It should be noted that in S411a, the TDF may also directly send the first service optimization control strategy or error information to the CDF.

S412a. After the CDF receives the first service request forwarded by the TDF, if the first service request carries error information, the CDF stops transmitting the video; otherwise, the CDF controls the service transmitted to the UE according to the first service optimization control strategy. optimization.

Specifically, the first service optimization control policy may instruct the CDF to allow optimal control of services transmitted to the UE, or prohibit the CDF from performing optimal control of services transmitted to the UE. For example, if the service requested by the UE is a video service, then for the Progressive Download video service request, if the first service optimization control policy allows the CDF to perform video optimization processing, the CDF can transcode the video to adapt to the maximum authorized bandwidth and UE Video playback capability (for example: screen resolution, supported video codec and file format, etc.), if the first service optimization control policy does not allow CDF to perform video optimization processing, then CDF does not perform any video optimization processing, but directly sends UE The requested video is transmitted to the UE. For the Adaptive Download video service request, if the first service optimization control policy allows the CDF to perform video optimization processing, the CDF may limit the requested video bit rate by the authorized maximum video bandwidth.

It should be noted that information such as the UE video playback capability can be reported to the CDF through the UserAgent field in the first service request sent by the UE, or the CDF can also query the local UE information according to the International Mobile Equipment Identity (IMEI) Library acquisition.

S413a. The CDF returns the service data requested by the UE to the UE through the first service request response (HTTP response).

If the UE requests a video service in Adaptive streaming mode, after obtaining a video segment from the CDF, the UE can continue to send other service requests according to the manifest file to obtain subsequent video segments.

Fig. 4b is a schematic flowchart of another embodiment of the service distribution control method provided by the present invention. As shown in Fig. 4b, on the basis of the embodiment shown in Fig. 4a, this embodiment provides when user subscription information and/or network status When changing, the independently set PCEF, TDF and CDF perform the further process of the service distribution control method, which includes:

S401b. When the user subscription information changes and/or the network status changes, the PCRF re-determines to obtain the second service transmission control strategy and the second service optimization control strategy.

Wherein, the change of the user subscription information may be, for example, the service level of the user subscription is changed, and the network state change may be, for example, the network is busy, idle, or cell congestion occurs.

PCRF can dynamically update the service transmission control strategy issued to PCEF and the service optimization control strategy issued to CDF when user subscription information changes and/or network status changes, so that PCEF can control service transmission and CDF Optimum control of services adapts to terminal and network conditions. The updated service transmission control strategy is the second service transmission control strategy, and the updated service optimization control strategy is the second service optimization control strategy.

S402b. The PCRF sends the second service optimization control policy to the TDF.

S403b. The TDF stores the second service optimization control policy in a local cache.

S404b. The TDF returns a response message to the PCRF.

S405b. The PCRF delivers the second service transmission control policy to the PCEF.

S406b. The PCEF adjusts resource allocation for the service requested by the terminal according to the second service transmission control policy.

It should be noted that the execution sequence of S402b-S404b and S405b may be determined according to specific business policies. For example: if S402b-S404b only involves modifying the transcoding control of terminal services, this step S405b can be omitted; if the business strategy is to reduce the transmission bandwidth and code rate of the current terminal when the network is busy, you can first execute S402b-S404b, and then execute S405b; if the service strategy is to increase the transmission bandwidth and code rate of the terminal, S405b may be executed first, and then S402b-S404b may be executed.

S407b. The terminal sends a second service request, and the TDF intercepts the second service request.

S408b. The TDF carries the second service optimization control strategy in the local cache into the second service request, specifically adding it to the HTTP User Agent header field and returning it to the CDF.

Similar to S411a, after receiving the second service optimization control strategy issued by the PCRF, the TDF may also directly send the second service optimization control strategy or error information to the CDF. In this case, steps S403b and S407b are omitted.

S409b. The CDF adjusts the optimization of the service transmitted to the terminal according to the second service optimization control policy in the second service request.

Figure 5a is a schematic flow diagram of an embodiment of the service distribution control method provided by the present invention, as shown in Figure 3, in this embodiment, PCEF is an independently set network element, and TDF and CDF are integrally set as a network element, as follows Represented by TDF/CDF, specifically, the function of integrating CDF may be extended on TDF, or the function of integrating TDF may be extended on CDF. The process of executing the service distribution control method by the above network elements will be described in detail below. The method includes:

S501a, the UE attaches to the network and establishes a PDP context or an EPC default bearer.

S502a. The UE initiates a first service request, and the first service request is redirected to or terminated at the CDF network element.

S503a, the first service request sent by the UE is intercepted by the TDF/CDF.

S504a. The TDF/CDF identifies the service category according to the URL in the first service request, and determines the video identifier and service flow quintuple information corresponding to the service.

S505a. The TDF/CDF reports the service flow information to the PCRF, and the service flow information includes the service identifier requested by the UE and the service flow quintuple information.

S506a. The PCRF searches for a preset service strategy according to one of the service flow information, user subscription information, and network status, and determines a first service transmission control strategy and a first service optimization control strategy.

S507a. The PCRF delivers the first service optimization control policy to the PCEF.

S508a. The PCEF executes the first service optimization control strategy. If there is no available bearer between the UE and the PCEF, create a new service bearer; if there is an available bearer, modify information such as QoS and TFT of the current bearer.

S509a, the PCEF returns a response message to the PCRF.

S510a. If the response message indicates that the PCEF successfully executes the resource allocation operation of the service requested by the UE, the PCRF sends the first service optimization control policy to the TDF/CDF, otherwise sends an error message to the TDF/CDF.

S511a. If the TDF/CDF receives the error message, the TDF/CDF stops transmitting the video; otherwise, the TDF/CDF optimizes the service transmitted to the UE according to the first service optimization control strategy.

S512a. The TDF/CDF returns the service data requested by the UE to the UE through the first service request response (HTTP response).

If the UE requests a video service in Adaptive streaming mode, after obtaining a video segment from the TDF/CDF, the UE can continue to send other service requests according to the manifest file to obtain subsequent video segments.

The difference between this embodiment and the embodiment shown in FIG. 4a is that TDF and CDF are integrated to form TDF/CDF. Therefore, compared with the embodiment shown in FIG. 4a, the external interaction process between TDF and CDF is omitted. For the process, refer to the corresponding description in the embodiment shown in Fig. 4a.

Figure 5b is a schematic flow diagram of an embodiment of the service distribution control method provided by the present invention. As shown in Figure 3, on the basis of the embodiment shown in Figure 5a, this embodiment provides a When the PCEF is independently set, and the integrated TDF and CDF implement the further process of the service distribution control method, the method includes:

S501b. When the user subscription information changes and/or the network state changes, the PCRF re-determines to obtain the second service transmission control strategy and the second service optimization control strategy.

S502b. The PCRF delivers the second service optimization control strategy to the TDF/CDF.

S503b. The TDF/CDF adjusts the optimization of the service transmitted to the terminal according to the second service optimization control policy in the second service request.

S504b. The TDF/CDF returns a response message to the PCRF.

S505b. The PCRF delivers the second service transmission control policy to the PCEF.

S506b. The PCEF adjusts resource allocation for the service requested by the terminal according to the second service transmission control policy.

S507b. The TDF/CDF returns the video segment adjusted according to the second service optimization control policy to the UE.

Similarly, the difference between this embodiment and the embodiment shown in FIG. 4b is that TDF and CDF are integrated to form TDF/CDF. Therefore, compared with the embodiment shown in FIG. 4b, the external connection between TDF and CDF is omitted. For the interaction process and other processes, refer to the corresponding description in the embodiment shown in FIG. 4b.

Figure 6a is a schematic flow diagram of an embodiment of the service distribution control method provided by the present invention, as shown in Figure 3, in this embodiment, PCEF, TDF and CDF are integrated and set as a network element, hereinafter referred to as PCEF/TDF/CDF Specifically, it can be to extend the function of integrating TDF and CDF on PCEF, or to extend the function of integrating PCEF and CDF on TDF, or to extend the function of integrating PCEF and TDF on CDF. The above network elements are executed as follows The process of the service distribution control method is described in detail.

S601a, the UE attaches to the network and establishes a PDP context or an EPC default bearer.

S602a. The UE initiates a first service request, and the first service request is redirected to or terminated at a PCEF/TDF/CDF network element.

S603a. The first service request sent by the UE is intercepted by the PCEF/TDF/CDF.

S604a. The PCEF/TDF/CDF identifies the service category according to the URL in the first service request, and determines the video identifier and service flow quintuple information corresponding to the service.

S605a. The PCEF/TDF/CDF reports service flow information to the PCRF, and the service flow information includes the service identifier requested by the UE and the service flow quintuple information.

S606a. The PCRF searches for a preset service strategy according to one of the service flow information, user subscription information, and network status, and determines a first service transmission control strategy and a first service optimization control strategy.

S607a. The PCRF delivers the first service optimization control policy to the PCEF/TDF/CDF.

S608a. The PCEF/TDF/CDF executes the first service optimization control strategy. If there is no available bearer between the UE and the PCEF, create a new service bearer; if there is an available bearer, modify the QoS and TFT information of the current bearer.

S609a. The PCEF/TDF/CDF returns a response message to the PCRF.

S610a. If the response message indicates that the PCEF/TDF/CDF successfully executes the resource allocation operation of the service requested by the UE, the PCRF sends the first service optimization control policy to the PCEF/TDF/CDF, otherwise sends an error message to the PCEF/TDF/CDF.

S611a. If the PCEF/TDF/CDF receives the error message, the PCEF/TDF/CDF stops video transmission; otherwise, the PCEF/TDF/CDF optimizes the service transmitted to the UE according to the first service optimization control policy.

S612a. The PCEF/TDF/CDF returns the service data requested by the UE to the UE through the first service request response (HTTP response).

If the UE requests a video service in Adaptive streaming mode, after obtaining a video segment from PCEF/TDF/CDF, the UE can continue to send other service requests according to the manifest file to obtain subsequent video segments.

Figure 6b is a schematic flowchart of an embodiment of the service distribution control method provided by the present invention. As shown in Figure 3, on the basis of the embodiment shown in Figure 6a, this embodiment provides a When, the integrated PCEF, TDF and CDF execute the further process of the service distribution control method, the method includes:

S601b. When the user subscription information changes and/or the network state changes, the PCRF re-determines to obtain the second service transmission control strategy and the second service optimization control strategy.

S602b. The PCRF delivers the second service optimization control policy to the PCEF/TDF/CDF.

S603b. The PCEF/TDF/CDF adjusts the optimization of the service transmitted to the terminal according to the second service optimization control policy in the second service request.

S604b. The PCEF/TDF/CDF returns a response message to the PCRF.

S605b. The PCRF delivers the second service transmission control policy to the PCEF/DF/CDF.

S606b. The PCEF/DF/CDF adjusts resource allocation for the service requested by the terminal according to the second service transmission control policy.

S607b. The PCEF/TDF/CDF returns the video segment adjusted according to the second service optimization control policy to the UE.

Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

FIG. 7 is a schematic structural diagram of an embodiment of a policy and charging rule functional entity PCRF provided by the present invention. As shown in FIG. 7, the PCRF includes: a receiver 11, a processor 12, and a transmitter 13;

The receiver 11 is configured to obtain service flow information of the terminal, where the service flow information includes at least a service identifier requested by the terminal and service flow quintuple information;

The processor 12 is configured to search for a preset service strategy according to the service flow information and at least one of the user subscription information of the terminal and the network status, and determine a first service transmission control strategy and a first service optimization control strategy;

The sender 13 is configured to deliver the first service transmission control policy to the policy and charging enforcement function entity PCEF, so that the PCEF performs resource allocation for the service requested by the terminal according to the first service transmission control policy, and optimally controls the first service The policy is issued to the content distribution functional entity CDF, so that the CDF optimizes the service transmitted to the terminal according to the first service optimization control policy.

Optionally, the receiver 11 may also be used to: receive a response message returned by the PCEF, where the response message is used to indicate that the PCEF has successfully allocated the service resources requested by the terminal, or the response message is used to indicate that the PCEF has failed to allocate the service resources requested by the terminal;

If the response message received by the receiver indicates that the PCEF has successfully allocated the service resource requested by the terminal, the transmitter 13 may be configured to deliver the first optimization control strategy to the CDF.

Optionally, if the response message received by the receiver 11 indicates that the PCEF fails to allocate the service resources requested by the terminal, the sender 13 may also be configured to: send error information to the CDF to instruct the CDF to stop transmitting the requested service to the terminal.

Further, the processor 12 may also be configured to: determine a second service transmission control strategy and a second service optimization control strategy according to the changed user subscription information and/or network status;

The sender 13 may also be configured to: issue the second service transmission control policy to the policy and charging enforcement function entity PCEF, so that the PCEF adjusts the resource allocation for the service requested by the terminal according to the second service transmission control policy, and sends the second service transmission control policy to the PCEF. The service optimization control policy is delivered to the CDF, so that the CDF adjusts the optimization of the service transmitted to the terminal according to the second service optimization control policy.

Further, the processor 12 may also be configured to: determine a service policy according to at least one of different service categories, different third-party service providers, and different user subscription information, and the service policy includes: service flow templates, charging methods, At least one of service transmission QoS, gating information, authorized maximum service bandwidth, and service optimization indication information.

The PCRF provided by the embodiment of the present invention is the execution device of the service distribution control method provided by the present invention. For the specific process of the PCRF executing the service distribution control method, please refer to the method embodiment, which will not be repeated here.

The PCRF provided by the embodiment of the present invention dynamically determines the service transmission control strategy and the service optimization control strategy according to the service information requested by the terminal, user subscription information, and network status, and sends the service transmission control strategy to the PCEF, so that the PCEF Allocate resources for terminal services; send service optimization control strategies to CDF, so that CDF can optimize services transmitted to terminals. In this way, different services of different users can reasonably occupy network resources, and optimize the business content to avoid network congestion and ensure users' normal service experience.

FIG. 8 is a schematic structural diagram of an embodiment of the traffic detection functional entity TDF provided by the present invention. As shown in FIG. 8, the TDF includes: a receiver 21, a processor 22, and a transmitter 23;

The receiver 21 is used to obtain the first service request of the terminal; it is also used to receive the first service optimization control strategy issued by the PCRF;

The processor 22 is configured to obtain service flow information of the terminal according to the first service request, where the service flow information includes at least a service identifier requested by the terminal and service flow quintuple information;

The transmitter 23 is configured to report the service flow information to the policy and charging rule functional entity PCRF, so that the PCRF searches for the corresponding service policy according to the service flow information, at least one of the user subscription information of the terminal and the network state, and determines the first A service transmission control strategy and a first service optimization control strategy.

FIG. 9 is a schematic structural diagram of another embodiment of the traffic detection functional entity TDF provided by the present invention. As shown in FIG. 9 , on the basis of FIG. 8 , the TDF may further include a controller 24;

As a feasible implementation, the existing function and structure of TDF can be extended to make it have the function of CDF, specifically:

The controller 24 may be configured to: if the receiver receives the first service optimization control strategy issued by the PCRF, optimize the service transmitted to the terminal according to the first service optimization control strategy.

Further, the receiver 21 may also be used to: receive the second service optimization control strategy issued by the PCRF;

The controller 24 can also be used to: if the receiver 21 receives the second optimization control strategy, adjust the optimization of the service transmitted to the terminal according to the second service optimization control strategy, and the second service optimization control strategy is determined by the PCRF according to the changed User subscription information and/or network status determination.

Further, the receiver 21 may also be used to: receive error information issued by the PCRF;

The controller 24 may also be configured to: stop transmitting the requested service to the terminal if the receiver receives error information.

Optionally, the processor 22 may also be specifically configured to: identify the service identifier corresponding to the service requested by the terminal according to the Uniform Resource Locator URL carried in the first service request, and obtain service flow quintuple information according to the first service request.

As another feasible implementation, TDF can also only be used as an interface between PCRF and CDF, specifically:

The sender 23 can also be used to: if the receiver 21 receives the first optimization control strategy, send the first control strategy to the content distribution function entity CDF, or carry the first service optimization control strategy in the first service request Send to CDF.

Further, the receiver 21 can also be used to: receive the second service optimization control policy issued by the PCRF, and also be used to receive the second service request sent by the terminal, the second service request and the first service request are issued by the terminal for the same service request;

The processor 22 may also be configured to: store the second service optimization control strategy in a local cache;

The transmitter 23 can also be used to: if the receiver 21 receives the second service request sent by the terminal, carry the second service optimization control strategy stored in the local cache in the second service request and send it to the CDF; or, for Sending the second service optimization control strategy received by the receiver to the CDF.

Further, the receiver 21 may also be used to: receive error information issued by the PCRF;

The transmitter 23 may also be configured to: if the receiver receives error information, send the error information to the CDF, or include the error information in the first service request and send it to the CDF.

The TDF provided by the embodiment of the present invention is the execution device of the service distribution control method provided by the present invention, and the device can be set independently or integrated with the PCEF and/or CDF. For the specific process of the TDF executing the method for controlling service distribution, reference may be made to the method embodiments, which will not be repeated here.

The TDF provided by the embodiment of the present invention can report the service flow information corresponding to the terminal service request to the PCRF, and the PCRF can dynamically determine the service optimization control strategy through the TDF according to the service information of the service requested by the terminal, user subscription information and network status. Send it to the CDF, so that the CDF can optimize the service transmitted to the terminal. In this way, different services of different users can reasonably occupy network resources, and optimize the business content to avoid network congestion and ensure users' normal service experience.

FIG. 10 is a schematic structural diagram of an embodiment of a content distribution functional entity CDF provided by the present invention. As shown in FIG. 10 , the CDF includes: a receiver 31 and a controller 32;

The receiver 31 is configured to receive the first service optimization control strategy. The first service optimization control strategy is searched by the policy and charging rule functional entity PCRF according to the service flow information, and at least one of the user subscription information of the terminal and the network status. business strategy, determined;

The controller 32 is configured to, if the receiver receives the first service optimization control strategy, optimize the service transmitted to the terminal according to the first service optimization control strategy.

Fig. 11 is a schematic structural diagram of another embodiment of the CDF provided by the present invention. As shown in Fig. 11, on the basis of Fig. 10, the CDF may further include: a transmitter 33 and a processor 34;

As a feasible embodiment, the existing function and structure of CDF can be extended to make it have the function of TDF, specifically:

The receiver 31 may also be used to: obtain the first service request of the terminal;

The controller 32 may also be configured to: obtain service flow information of the terminal according to the first service request, where the service flow information includes at least a service identifier requested by the terminal and service flow quintuple information;

The transmitter 33 is configured to report the service flow information to the policy and charging rule functional entity PCRF, so that the PCRF can search for the corresponding service policy according to the service flow information, at least one of the user subscription information of the terminal and the network state, and determine the first A service transmission control strategy and a first service optimization control strategy;

The receiver 31 may be specifically configured to: receive the first service optimization control strategy issued by the PCRF.

Further, the processor 34 may be specifically configured to: identify the service identifier corresponding to the service requested by the terminal according to the Uniform Resource Locator URL carried in the first service request, and obtain the service flow quintuple information according to the first service request.

Further, the receiver 31 may also be used to: receive a second service optimization control strategy issued by the PCRF, the second service optimization control strategy is determined by the PCRF according to the changed user subscription information and/or network status;

The controller 32 may also be configured to: if the receiver receives the second service optimization control strategy, adjust the optimization of the service transmitted to the terminal according to the second service optimization control strategy.

Further, the receiver 31 may also be used to: receive error information issued by the PCRF;

The controller 32 may also be configured to: stop transmitting the requested service to the terminal if the receiver receives error information.

As another feasible embodiment, the receiver 31 may be specifically configured to: receive the first service optimization control strategy sent by the traffic detection functional entity TDF, or receive the first service request sent by the TDF, the first service request carrying the first 1. A business optimization control strategy.

Further, the receiver 31 can also be used to: receive the second service optimization control strategy sent by TDF, or receive the second service request sent by TDF, the second service request carries the second service optimization control strategy, the second service optimization The control strategy is determined by the PCRF according to the changed user subscription information and/or network status;

The controller 32 may also be configured to: if the receiver 31 receives the second service optimization control strategy, adjust the optimization of the service transmitted to the terminal according to the second service optimization control strategy.

Further, the receiver 31 may also be used to: receive error information sent by TDF, or receive a first service request sent by TDF, where the first service request carries error information;

The controller 32 may also be configured to: stop transmitting the requested service to the terminal if the receiver receives the error information.

The CDF provided by the embodiment of the present invention is the execution device of the service distribution control method provided by the present invention, and the device can be set independently or integrated with PCEF and/or TDF. For the specific process of the CDF executing the service distribution control method, reference may be made to the method embodiments, and details are not repeated here.

In the service distribution control method provided by the embodiment of the present invention, the CDF can directly report the service flow information corresponding to the terminal service request to the PCRF or report it to the PCRF through the TDF, and the PCRF can base the service information, user subscription information and network status on the service requested by the terminal , dynamically determine the service optimization control strategy, and send it directly to the CDF, or send it to the CDF through the TDF, so that the CDF can optimize the service transmitted to the terminal. In this way, different services of different users can reasonably occupy network resources, and optimize the business content to avoid network congestion and ensure users' normal service experience.

FIG. 12 is a schematic structural diagram of an embodiment of a policy and charging enforcement function entity PCEF provided by the present invention. As shown in FIG. 12 , the PCEF includes: a receiver 41 and a processor 42;

The receiver 41 is configured to receive the first service transmission control policy issued by the policy and charging rules functional entity PCRF, the first service transmission control policy is determined by the PCRF according to the service flow information of the service requested by the terminal and at least the user subscription information of the terminal and one of the network status, find the corresponding business policy, determined;

The processor 42 is configured to perform resource allocation on the service requested by the terminal according to the first transmission control policy.

FIG. 13 is a schematic structural diagram of another embodiment of the policy and charging enforcement function entity PCEF provided by the present invention. As shown in FIG. 13 , on the basis of FIG. 12 , the PCEF may further include: a transmitter 43;

The sender 43 may be configured to return a response message to the PCRF, where the response message is used to indicate that the service resources requested by the terminal are allocated successfully, so that the PCRF sends the first service optimization control strategy to the content distribution functional entity CDF, or the response message It is used to indicate that the allocation of service resources requested by the terminal fails, so that the PCRF sends error information to the CDF. The first service optimization control strategy is for the PCRF to find the corresponding business strategy, sure.

Further, the receiver 41 may also be used to: receive the second service transmission control strategy delivered by the PCRF, the second service transmission control strategy is determined by the PCRF according to the changed user subscription information and/or network status;

The processor 42 may also be configured to: adjust resource allocation for the service requested by the terminal according to the second service transmission control policy.

The PCEF provided by the embodiment of the present invention is the execution device of the service distribution control method provided by the present invention, and the device can be set independently or integrated with CDF and/or TDF. For the specific process of the CDF executing the service distribution control method, reference may be made to the method embodiments, and details are not repeated here.

The PCEF provided by the embodiment of the present invention can dynamically determine the service transmission control strategy according to the service information of the service requested by the terminal, user subscription information and network status, and send it to the PCEF, so that the PCEF can allocate resources to the service transmitted by the terminal . In this way, different services of different users can reasonably occupy network resources, and optimize the business content to avoid network congestion and ensure users' normal service experience.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (39)

1. a kind of distribution of services control method, it is characterised in that including：

The business stream information of terminal is obtained, service identification and business in the business stream information at least including the terminal request Stream five-tuple information；

One of user signing contract information and network state according to the business stream information and at least described terminal, search default Business game, determine the first business Transmission Control Strategy and the first service optimization control strategy；

The first business Transmission Control Strategy is handed down to strategy and charging execution function entity PCEF, so that the PCEF roots Resource allocation is carried out to the business of the terminal request according to the first business Transmission Control Strategy, by first service optimization Control strategy is handed down to content distribution functional entity CDF so that the CDF according to the first service optimization control strategy to The business of the terminal transmission is optimized.

2. method according to claim 1, it is characterised in that described to be handed down to the first service optimization control strategy Before content distribution functional entity CDF, also include：

Receive the response message that the PCEF is returned, the response message is used to indicating the PCEF to the industry of the terminal request Business resource allocation success, or the response message is used to indicate the PCEF to lose the traffic resource assignment of the terminal request Lose.

3. method according to claim 2, it is characterised in that after the response message that the reception PCEF is returned, Also include：

If the response message indicates traffic resource assignment successes of the PCEF to the terminal request, by first industry Business Optimal Control Strategy is handed down to the CDF.

4. method according to claim 2, it is characterised in that after the response message that the reception PCEF is returned, Also include：

If the response message indicates traffic resource assignment failures of the PCEF to the terminal request, under the CDF Hair error message, the business asked to the terminal transmission with indicating the CDF to stop.

5. the method according to claim any one of 1-4, it is characterised in that if the user signing contract information and/or described Network state changes, then methods described also includes：

According to user signing contract information and/or network state after change, the second business Transmission Control Strategy and the second business are determined Optimal Control Strategy；

The second business Transmission Control Strategy is handed down to strategy and charging execution function entity PCEF, so that the PCEF roots The resource allocation to the business of the terminal request is adjusted according to the second business Transmission Control Strategy, second business is excellent Change control strategy and be handed down to content distribution functional entity CDF, so that the CDF is adjusted according to the second service optimization control strategy The optimization of the whole business to the terminal transmission.

6. the method according to claim any one of 1-4, it is characterised in that the business stream information of the acquisition terminal it Before, also include：According in different classs of service, different third party service providers and different user signing contract informations At least one determines the business game, and the business game includes：Traffic flow template, charging method, business are transmitted QoS, are awarded Weigh maximum traffic bandwidth, gating information, whether allow at least one of service optimization configured information.

7. the method according to claim any one of 1-4, it is characterised in that the first business Transmission Control Strategy includes At least one of traffic flow template, charging method, business transmission QoS, gating information.

8. the method according to claim any one of 1-4, it is characterised in that the first service optimization control strategy includes Authorize maximum traffic bandwidth, gating information, whether allow at least one of service optimization configured information.

9. a kind of distribution of services control method, it is characterised in that including：

According to the first service request of the terminal for obtaining, the business stream information of the terminal is obtained, in the business stream information extremely Include the service identification and Business Stream five-tuple information of the terminal request less；

By the Business Stream information reporting to strategy and charging regulation function entity PCRF, so that the PCRF is according to the business One of user signing contract information and network state of stream information and at least described terminal, search corresponding business game, determine the One business Transmission Control Strategy and the first service optimization control strategy；

If receiving the first service optimization control strategy that the PCRF is issued, plan is controlled according to first service optimization Slightly, the business to the terminal transmission is optimized.

10. method according to claim 9, it is characterised in that first service request according to the terminal for obtaining, obtains To the business stream information of the terminal, including：

Flow detection function entity TDF intercepts and captures first service request that the terminal sends, please according to first business The uniform resource position mark URL of middle carrying is asked to recognize the corresponding service identification of business of the terminal request, and according to described the One service request obtains the Business Stream five-tuple information；

It is described that the business information stream is reported into strategy and charging regulation function entity PCRF, including：

The business information stream is reported the PCRF by the TDF.

11. methods according to claim 9, it is characterised in that if described receive first industry that the PCRF is issued Business Optimal Control Strategy, then according to the first service optimization control strategy, optimize to the business to the terminal transmission, Including：

TDF receives the first service optimization control strategy that the PCRF is issued, by the first service optimization control strategy CDF is sent to, or the first service optimization control strategy carrying is sent in first service request described CDF；

The CDF according to the first service optimization control strategy, to being optimized to the business of the terminal transmission.

12. methods according to claim 9, it is characterised in that if described receive first industry that the PCRF is issued Business Optimal Control Strategy, then according to the first service optimization control strategy, optimize to the business to the terminal transmission Afterwards, also include：

If receiving the second service optimization control strategy that the PCRF is issued, according to the second service optimization control strategy, Adjust optimization to from the business to the terminal transmission, the second service optimization control strategy by the PCRF according to change after User signing contract information and/or network state determine.

13. methods according to claim 12, it is characterised in that to receive the second business that the PCRF issues excellent if described Change control strategy, then according to the second service optimization control strategy, adjust the optimization to the business to the terminal transmission, bag Include：

TDF receives the second service optimization control strategy that the PCRF is issued；

The second service optimization control strategy is sent to CDF by the TDF；Or, the TDF is by second service optimization Control strategy is stored into local cache；If the TDF receives the second service request that the terminal sends, will be described local The the second service optimization control strategy stored in caching carries and the CDF, institute is sent in second service request It is that the terminal is directed to the request that same business sends to state the second service request and first service request；

The CDF adjusts the optimization to the business to the terminal transmission according to the second service optimization control strategy.

14. method according to claim any one of 9-13, it is characterised in that also include：

If receiving the error message that the PCRF is issued, stop the business being asked to the terminal transmission.

15. methods according to claim 14, it is characterised in that if described receive the error message that the PCRF is issued, Then stop the business being asked to the terminal transmission, including：

The TDF receives the error message that the PCRF is issued, and the error message is sent into the CDF, or will be described Error message is carried and is sent to the CDF in first service request；

The CDF stops the business being asked to the terminal transmission according to the error message.

A kind of 16. distribution of services control methods, it is characterised in that including：

The first business Transmission Control Strategy that strategy is issued with charging regulation function entity PCRF is received, first business is passed Defeated control strategy is by the PCRF according to the business stream information of the business of terminal request, the user signing contract information and net of the terminal Network state, searches corresponding business game, it is determined that；

According to the first business Transmission Control Strategy, the business to terminal request carries out resource allocation；

It is described the business of terminal request to be carried out after resource allocation according to the first business Transmission Control Strategy, also include：

Return to response message to the PCRF, the response message be used to indicating to the traffic resource assignment of the terminal request into Work(, so that the first service optimization control strategy is handed down to content distribution functional entity CDF by the PCRF, or, the response Message is used to indicate the traffic resource assignment failure to the terminal request, so that the PCRF issues wrong letter to the CDF Breath, the first service optimization control strategy is by the PCRF according to the business stream information and the use of at least described terminal One of family CAMEL-Subscription-Information and network state, search corresponding business game, it is determined that.

17. methods according to claim 16, it is characterised in that also include：

The second business Transmission Control Strategy that the PCRF is issued is received, the second business Transmission Control Strategy is by described PCRF determines according to the user signing contract information after change and/or network state；

According to the second business Transmission Control Strategy, resource allocation of the adjustment to the business of the terminal request.

A kind of 18. strategies and charging regulation function entity PCRF, it is characterised in that including：

Receiver, the business stream information for obtaining terminal at least includes the industry of the terminal request in the business stream information Business mark and Business Stream five-tuple information；

Processor, for the user signing contract information and network state according to the business stream information and at least described terminal it One, default business game is searched, determine the first business Transmission Control Strategy and the first service optimization control strategy；

Transmitter, for the first business Transmission Control Strategy to be handed down into strategy and charging execution function entity PCEF, with Make the PCEF that resource allocation is carried out to the business of the terminal request according to the first business Transmission Control Strategy, will be described First service optimization control strategy is handed down to content distribution functional entity CDF, so that the CDF is according to first service optimization Control strategy is optimized to the business to the terminal transmission.

19. PCRF according to claim 18, it is characterised in that the receiver is additionally operable to：The PCEF is received to return Response message, the response message is used to indicate the PCEF to the success of the traffic resource assignment of the terminal request, or The response message is used to indicate the PCEF to fail the traffic resource assignment of the terminal request；

If the response message that receiver is received indicates traffic resource assignment successes of the PCEF to the terminal request, The transmitter is used to for the first service optimization control strategy to be handed down to the CDF.

20. PCRF according to claim 19, it is characterised in that if the response message instruction that receiver is received is described PCEF fails to the traffic resource assignment of the terminal request, then the transmitter is additionally operable to：Wrong letter is issued to the CDF Breath, the business asked to the terminal transmission with indicating the CDF to stop.

21. PCRF according to claim any one of 18-20, it is characterised in that the processor is additionally operable to：According to change User signing contract information afterwards and/or network state, determine the second business Transmission Control Strategy and the second service optimization control strategy；

The transmitter is additionally operable to：The second business Transmission Control Strategy is handed down to strategy and charging execution function entity PCEF, so that the PCEF adjusts the resource point to the business of the terminal request according to the second business Transmission Control Strategy Match somebody with somebody, the second service optimization control strategy is handed down to content distribution functional entity CDF, so that the CDF is according to described Two service optimization control strategies adjust the optimization to the business to the terminal transmission.

22. PCRF according to claim any one of 18-20, it is characterised in that the processor is additionally operable to：According to difference At least one of class of service, different third party service providers and different user signing contract informations determine the industry Business strategy, the business game includes：Traffic flow template, charging method, business transmission QoS, gating information, mandate maximum traffic Bandwidth, whether allow at least one of service optimization configured information.

A kind of 23. flow detection function entity TDF, it is characterised in that including：

Receiver, the first service request for obtaining terminal；It is additionally operable to receive the first service optimization control that PCRF is issued System strategy；

Processor, for according to first service request, the business stream information of the terminal being obtained, in the business stream information Service identification and Business Stream five-tuple information at least including the terminal request；

Transmitter, for giving strategy and charging regulation function entity PCRF by the Business Stream information reporting, so that the PCRF One of user signing contract information and network state according to the business stream information and at least described terminal, search corresponding industry Business strategy, determines the first business Transmission Control Strategy and the first service optimization control strategy.

24. TDF according to claim 23, it is characterised in that the processor specifically for：According to first business The uniform resource position mark URL carried in request recognizes the corresponding service identification of business of the terminal request, and according to described First service request obtains the Business Stream five-tuple information.

25. TDF according to claim 23, it is characterised in that also include：

Controller, if receiving the first service optimization control strategy that the PCRF is issued, basis for the receiver The first service optimization control strategy, optimizes to the business to the terminal transmission.

26. TDF according to claim 23, it is characterised in that the receiver is additionally operable to：Receive what the PCRF was issued Second service optimization control strategy；

The controller is additionally operable to：If the receiver receives the second service optimization control strategy, according to described Two service optimization control strategies, adjust the optimization to the business to the terminal transmission, the second service optimization control strategy Determined according to the user signing contract information and/or network state after change by the PCRF.

27. TDF according to claim 25 or 26, it is characterised in that the receiver is additionally operable to：Receive under the PCRF The error message of hair；

The controller is additionally operable to：If the receiver receives the error message, stop being asked to the terminal transmission Business.

28. TDF according to claim 23, it is characterised in that the transmitter is additionally operable to：If the receiver is received The first service optimization control strategy, then be sent to CDF by the first service optimization control strategy, or, by described One service optimization control strategy is carried and is sent to the CDF in first service request.

29. TDF according to claim 28, it is characterised in that the receiver is additionally operable to：Receive what the PCRF was issued Second service optimization control strategy, is additionally operable to receive the second service request that the terminal sends, second service request and First service request is the request that the terminal sends for same business；

The processor is additionally operable to：The second service optimization control strategy is stored into local cache；

The transmitter is additionally operable to：If the receiver receives the second service request that the terminal sends, by described The the second service optimization control strategy stored in ground caching is carried and is sent to the CDF in second service request； Or, the second service optimization control strategy for the receiver to be received is sent to the CDF.

30. TDF according to claim 28 or 29, it is characterised in that the receiver is additionally operable to：Receive under the PCRF The error message of hair；

The transmitter is additionally operable to：If the receiver receives the error message, the error message is sent to institute CDF is stated, or error message carrying is sent to the CDF in first service request.

A kind of 31. content distribution functional entity CDF, it is characterised in that including：

Receiver, for receiving the first service optimization control strategy, the first service optimization control strategy is by strategy and charging It is right that regulation function entity PCRF is searched according to business stream information and at least one of user signing contract information and network state of terminal The business game answered, it is determined that；

Controller, if receiving the first service optimization control strategy for the receiver, according to first business Optimal Control Strategy, optimizes to the business to the terminal transmission；

The receiver is additionally operable to：Obtain the first service request of terminal；

The controller is additionally operable to：According to first service request, the business stream information of the terminal, the Business Stream are obtained Service identification and Business Stream five-tuple information in information at least including the terminal request；

Also include：Transmitter, for giving strategy and charging regulation function entity PCRF by the Business Stream information reporting, so that institute PCRF is stated according to one of user signing contract information and network state of the business stream information and at least described terminal, it is right to search The business game answered, determines the first business Transmission Control Strategy and the first service optimization control strategy；

The receiver specifically for：Receive the first service optimization control strategy that the PCRF is issued.

32. CDF according to claim 31, it is characterised in that also include：

Processor, for recognizing the terminal request according to the uniform resource position mark URL carried in first service request The corresponding service identification of business, and the Business Stream five-tuple information is obtained according to first service request.

33. CDF according to claim 31 or 32, it is characterised in that the receiver is additionally operable to：Receive under the PCRF Second service optimization control strategy of hair, the second service optimization control strategy is signed by the PCRF according to the user after change About information and/or network state determine；

The controller is additionally operable to：If the receiver receives the second service optimization control strategy, according to described Two service optimization control strategies, adjust the optimization to the business to the terminal transmission.

34. CDF according to claim 31 or 32, it is characterised in that the receiver is additionally operable to：Receive under the PCRF The error message of hair；

The controller is additionally operable to：If the receiver receives the error message, stop being asked to the terminal transmission Business.

35. CDF according to claim 31, it is characterised in that the receiver specifically for：Receive flow detection function The first service optimization control strategy that entity TDF sends, or receive the first service request that the TDF sends, described the The first service optimization control strategy is carried in one service request.

36. CDF according to claim 35, it is characterised in that the receiver is additionally operable to：Receive what the TDF sent Second service optimization control strategy, or the second service request that the TDF sends is received, taken in second service request The second service optimization control strategy of band, the second service optimization control strategy is contracted by the PCRF according to the user after change Information and/or network state determine；

The controller is additionally operable to：If the receiver receives the second service optimization control strategy, according to second industry Optimization of the business Optimal Control Strategy adjustment to the business to the terminal transmission.

37. CDF according to claim 35 or 36, it is characterised in that the receiver is additionally operable to：Receive the TDF hairs The error message sent, or first service request that the TDF sends is received, carry mistake in first service request Information；

The controller is additionally operable to：If the receiver receives the error message, stop being asked to the terminal transmission Business.

A kind of 38. strategies and charging execution function entity PCEF, it is characterised in that including：

Receiver, it is described for receiving the first business Transmission Control Strategy that strategy is issued with charging regulation function entity PCRF First business Transmission Control Strategy is by the PCRF according to the business stream information and at least described terminal of the business of terminal request User signing contract information and one of network state, search corresponding business game, it is determined that；

Processor, for according to the first business Transmission Control Strategy, the business to terminal request to carry out resource allocation；

The PCEF also includes：

Transmitter, for returning to response message to the PCRF, the response message is used to indicate the industry to the terminal request Business resource allocation success, so that the first service optimization control strategy is handed down to content distribution functional entity CDF by the PCRF, or Person, the response message is used to indicate the traffic resource assignment failure to the terminal request, so that the PCRF is to the CDF Issue error message, the first service optimization control strategy is by the PCRF according to the business stream information and at least institute One of user signing contract information and network state of terminal are stated, corresponding business game is searched, it is determined that.

39. PCEF according to claim 38, it is characterised in that the receiver is additionally operable to：The PCRF is received to issue The second business Transmission Control Strategy, the second business Transmission Control Strategy by the PCRF according to after change user contract Information and/or network state determine；

The processor is additionally operable to：According to the second business Transmission Control Strategy, adjust to the business of the terminal request Resource allocation.