WO2011035473A1 - 一种网络流量分流方法、设备及系统 - Google Patents
一种网络流量分流方法、设备及系统 Download PDFInfo
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- WO2011035473A1 WO2011035473A1 PCT/CN2009/074201 CN2009074201W WO2011035473A1 WO 2011035473 A1 WO2011035473 A1 WO 2011035473A1 CN 2009074201 W CN2009074201 W CN 2009074201W WO 2011035473 A1 WO2011035473 A1 WO 2011035473A1
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- Prior art keywords
- user
- policy
- offloading
- traffic
- data stream
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
- H04W28/088—Load balancing or load distribution among core entities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/12—Avoiding congestion; Recovering from congestion
- H04L47/122—Avoiding congestion; Recovering from congestion by diverting traffic away from congested entities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
- H04L47/2441—Traffic characterised by specific attributes, e.g. priority or QoS relying on flow classification, e.g. using integrated services [IntServ]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/80—Actions related to the user profile or the type of traffic
- H04L47/808—User-type aware
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0247—Traffic management, e.g. flow control or congestion control based on conditions of the access network or the infrastructure network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
- H04W28/09—Management thereof
- H04W28/0925—Management thereof using policies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0766—Error or fault reporting or storing
- G06F11/0781—Error filtering or prioritizing based on a policy defined by the user or on a policy defined by a hardware/software module, e.g. according to a severity level
Definitions
- the present invention relates to the field of mobile communication technologies, and in particular, to a method, device and system for network traffic offloading in mobile communication.
- FIG. 1 A typical network of the current mobile network is shown in FIG. 1 , which includes a base station, a Radio Network Controller (RNC), and a General Packet Radio Service (GPRS) support node (Serving GPRS Support Node, SGSN), Gateway GPRS Support Node (GGSN), Value-Added Server (VAS), and Internet and other networks.
- RNC Radio Network Controller
- GPRS General Packet Radio Service
- SGSN Serving GPRS Support Node
- GGSN Gateway GPRS Support Node
- VAS Value-Added Server
- the base station is used for two-way transmission and reception of wireless signals.
- the RNC is part of the access network and is used to provide mobility management, call processing, link management and switching mechanisms.
- the SGSN provides a connection with the radio network controller RNC for managing mobile data, such as identification, encryption, and compression.
- By connecting to the GGSN it provides functions such as transmission paths and protocol conversion between IP packets and wireless units.
- the GGSN mainly functions as a gateway. It can connect with a variety of different data networks to perform protocol conversion on GPRS packet data packets in the GSM network, thereby transmitting these packet data packets to the remote network.
- the VAS is used to provide an interface between a value-added service (such as a multimedia service) and a GGSN.
- a value-added service such as a multimedia service
- the user's data flow does not distinguish between the nature of the service and flows through devices such as SGSN, GGSN, and VAS. For example, all uplink data streams for the user flow through the base station, RNC, SGSN, GGSN, VAS from the user terminal, until they reach the destination.
- All downlink data flows of the user flow through the VAS, GGSN, SGSN, RNC, and base station from the data source to the user terminal. All upstream or downstream traffic of the user will occupy the processing capabilities of devices such as SGSN, GGSN, and VAS, as well as the capacity of links between devices.
- Embodiments of the present invention provide a network traffic offloading method, apparatus, and system for mobile communications, which are used to reduce the bandwidth load of the SGSN and the GGSN, and reduce the networking cost.
- the network traffic offloading method provided by the embodiment of the present invention is applied to the mobile communications, and includes: the traffic distribution device that is located before the serving general packet radio service support node SGSN in the uplink direction of the user receives the user data stream sent by the base station, and acquires the user data stream.
- the offloading policy is used to forward the data stream according to the offloading policy.
- the obtaining the traffic offloading policy of the user includes: obtaining a traffic offloading policy of the user from the traffic offloading device, and/or obtaining a shunting of the user from a policy server. Strategy.
- the offloading device is provided in the mobile communication network, and the offloading device is located in the uplink direction of the user before the serving general packet radio service support node SGSN, and the offloading device includes: a receiving module, configured to receive by the base station a data stream of the user; an obtaining module, configured to obtain a traffic offloading policy of the user; and a traffic distribution module, configured to forward, according to the traffic distribution policy acquired by the acquiring module, the data flow received by the receiving module, where the acquiring module acquires
- the user's offloading policy specifically includes: obtaining the user's offloading policy from the offloading device itself and/or obtaining the user's offloading policy from the policy server.
- the network traffic offloading system is applied to the mobile communication, and includes: a base station and a traffic distribution device, where the base station is configured to send a data flow of the user to the traffic distribution device; Before being located in the packet radio service support node SGSN, the method is configured to receive the user data stream sent by the base station, obtain the traffic off policy of the user, and forward the data stream according to the offload policy; where the offloading policy for acquiring the user includes Obtaining the user's offload policy from the offloading device itself and/or obtaining the user's offloading policy from the policy server.
- the traffic distribution device can obtain the corresponding traffic distribution policy according to the data flow sent by the forwarding plane, and forward the data flow according to the traffic distribution policy, so that all the data flows are sent to the SGSN and the like, thereby reducing the networking cost.
- FIG. 1 is a typical networking diagram of a mobile network in the prior art
- FIG. 2 is a schematic structural diagram of a network traffic offloading system according to an embodiment of the present invention.
- FIG. 3 is a schematic flowchart of a network traffic offloading method according to an embodiment of the present invention.
- FIG. 4 is a signaling flowchart of another network traffic offloading method according to an embodiment of the present invention
- FIG. 5 is a signaling flowchart of another network traffic offloading method according to an embodiment of the present invention
- FIG. 7 is a schematic structural diagram of another shunt device according to an embodiment of the present invention.
- FIG. 8 is a schematic structural diagram of another shunt device according to an embodiment of the present invention. detailed description
- the embodiment of the present invention provides a network traffic offloading system.
- the system includes a base station, a radio network controller RNC, a serving GPRS support node SGSN, a gateway GPRS support node GGSN, a value-added server VAS, and an Internet and other networks.
- RNC radio network controller
- SGSN serving GPRS support node
- GGSN gateway GPRS support node
- VAS Internet and other networks.
- the functions of the SGSN and/or the GGSN may need to be extended. The specific extension may be embodied by a subsequent method description.
- the system includes a distribution device and a policy server.
- the policy server can be a Policy and Charging Rule Function (PCRF) or other device capable of providing charging and trafficking policies.
- PCRF Policy and Charging Rule Function
- the user's charging policy needs to be established or obtained through the signaling plane (shown by the dotted line in the figure), and then the user is in the data plane according to the charging policies (in the figure)
- the transmitted data is shunted or billed as shown by the solid line.
- the shunt device is on the user In the direction of the SGSN, the user is configured to offload the data stream according to the traffic policy configured or generated by the policy or the traffic policy obtained from the policy server.
- An implementation of the method for implementing network traffic offloading using the system shown in FIG. 2, as shown in FIG. 3, includes the following steps:
- the offloading device receives a user data stream sent by the base station.
- all user data streams are sent through the base station.
- the offloading device is located before the SGSN in the user uplink direction.
- the offloading device acquires a traffic offloading policy of the user.
- the offloading device obtains the user's trafficking policy, including one or more of the following modes: A, B, and C:
- the traffic distribution device sends a policy request message to the policy server, where the policy request message carries the user IP address obtained by the traffic device in the data stream.
- the policy request message is used to request a traffic policy for the user from the policy server.
- the policy server finds the user information based on the user's IP address, and generates a traffic distribution policy based on the user information, and sends the generated traffic distribution policy to the traffic distribution device.
- the traffic distribution device sends a user information request message to the policy server, where the user information request message carries the user IP address obtained by the traffic distribution device in the data stream.
- the policy server searches for the user information according to the user information request message, and sends the found user information to the traffic distribution device, and the traffic distribution device generates a traffic distribution policy according to the received user information.
- the offloading device obtains its pre-configured traffic offloading policy.
- the same APN is set for all users that need to be offloaded to the network, and one or more uplink GTP-U tunnel destination addresses are allocated to the APN on the SGSN.
- the multiple uplink GTPs are allocated.
- the destination address of the -U tunnel can form an IP address segment.
- the traffic distribution table is formed according to the mapping relationship between the APN and the destination address of the uplink GTP-U tunnel.
- a traffic distribution table with the same content as the SGSN is also configured as a traffic distribution policy on the traffic distribution device. 330.
- the offloading device forwards the received data stream according to the offloading policy.
- the above-mentioned offloading strategy can be used to distinguish whether the data stream to which the data message belongs is a high-value data stream or a low-value data stream, wherein the high-value data stream and the low-value data stream can be based on the data stream by the operator (mobile service provider).
- the charges are determined.
- the traffic distribution device sends the data stream to the SGSN, and then sends the data stream to the service processing server such as VAS through the SGSN; when it is determined that the data stream belongs to the low-value data stream, the traffic distribution device
- the data stream is sent to the Internet or to a specific network such as an IP/MPLS network.
- the above-mentioned traffic distribution policy may also be determined based on the real-time or priority of the service to which the data flow belongs. For example, when the real-time or priority of the service is low, the traffic distribution device sends the data flow to the Internet or other specific network; When the real-time or high priority is high, the offloading device sends the data stream to the SGSN, and then sends it to the service processing server such as VAS through the SGSN.
- the service processing server such as VAS through the SGSN.
- a signaling flow chart of implementing a network traffic offloading method according to another embodiment of the present invention includes the following steps:
- the user sends an online message to the GGSN through the base station, requesting to establish a connection, where the online message carries at least the access point name APN of the user.
- the GGSN After receiving the online message, the GGSN sends a report message to the policy server, and reports the user information of the user.
- the GGSN After receiving the online message, the GGSN first assigns an IP address to the user, and then sends a report message to the policy server to report the related information of the user.
- the report message carries the user's access point name (Access Point Name, ⁇ ) (used to identify the service access network), the IP address assigned to the user, and the user's international mobile subscriber identity (International) Mobile Subscriber Identity, IMSI X internationally uniquely identifies the number assigned to a mobile subscriber), the Mobile Station ISDN number (the only one in the public telephone network exchange network numbering plan that identifies mobile users) User information such as number, such as mobile phone number) and billing ID. 430.
- the GGSN sends the IP address assigned to the user to the user through the base station.
- the user After receiving the allocated IP address, the user sends the data stream through the base station.
- the process of assigning an IP address to the user and the user information in the steps of the GGSN in steps 410-440 may also be performed in other manners well known to those in the field.
- the user carries the IP address in the online message, which is determined by the GGSN. Whether the IP address carried by the user is available, etc.
- the offloading device detects the received data stream, and finds that the data packet of the data stream has a predetermined feature (for example, the traffic engineering identifier ( ⁇ ID) carried in the datagram is the newly detected TE ID.
- a predetermined feature for example, the traffic engineering identifier ( ⁇ ID) carried in the datagram is the newly detected TE ID.
- the offloading server also needs to parse the IP address of the user from the data packet of the data stream, and the IP address is carried in the policy request message and sent to the policy server.
- the policy server After receiving the policy request message of the offloading device, the policy server generates a traffic offloading policy of the user.
- the policy server After receiving the policy request message, the policy server searches for the stored user information according to the IP address of the user, where the user information includes related information reported by the GGSN and user subscription information, and then according to the user information and/or the policy server.
- the policy rule generates a traffic off policy for the user's data flow.
- the policy server sends the generated offloading policy to the offloading device.
- the offloading policy may include one or more of the following information: a user's IP address, whether to offload, which network node to offload, the user's IMSI/MSISDN, and the charging identifier.
- the offloading device offloads the new data stream according to the received offloading policy.
- the specific shunt can be:
- 480-A sending low value data streams to the Internet or to specific networks such as IP/MPLS networks; and/or 480-B.
- the high-value data stream is sent to the VAS or other special function service processing server through the SGSN and the GGSN.
- the offloading policy may also be generated by the offloading device itself.
- the foregoing steps 450-470 may be replaced by: the offloading device sends a user information request message to the policy server, where the user information request message carries the parsing The obtained user IP address.
- the policy server searches for the user information according to the user information request message, and sends the found user information to the traffic distribution device, and the traffic distribution device generates a traffic distribution policy according to the received user information.
- the method further includes the step of charging the user.
- the GGSN and the offloading device respectively generate a charging packet for the data stream that is offloaded to the GGSN and the data stream that is offloaded to the Internet or other specific network, and report the accounting packet to the accounting server (for example, an authentication, authorization, accounting AAA server or CG server).
- the accounting packets reported by the AAA server to the GGSN and the traffic distribution device are combined and charged according to the charging identifier.
- the value of the data stream can be set and changed by the operator (service provider) according to its own policy.
- the foregoing embodiment of the present invention obtains a traffic offloading policy generated by the user information by using a traffic offloading device to offload the user's data stream, thereby avoiding the problem that the entire network traffic is over-priced due to the SGSN, the GGSN, and the VAS.
- a signaling flowchart of a network traffic offloading method includes:
- the offloading device determines whether to offload according to the destination address of the uplink GTP-U tunnel of the data packet in the data stream.
- the traffic offloading policy needs to be configured in advance.
- a configuration method includes: setting the same APN for all users that need to be offloaded to the network, and assigning one or more uplink GTP-U tunnel destination addresses to the APN on the SGSN (when multiple uplink GTP-U tunnel destination addresses are allocated)
- the destination address of the multiple uplink GTP-U tunnels may form an IP address segment, and a split table is formed according to the mapping relationship between the APN and the assigned destination GTP-U tunnel destination address.
- a traffic distribution table having the same content as the SGSN is also configured on the offloading device.
- the offloading device can offload the received data stream.
- the steps 510-530 in this embodiment are the same as the steps 410-430 in the above embodiment, and are not described herein again.
- the SGSN selects an uplink GTP-U tunnel destination address to send to the wireless network controller RNC according to the user's APN.
- the SGSN can obtain the user's APN from the signaling message that the user interacts with the GGSN, and whether the user goes online or the like. After the SGSN determines that the user has gone online, according to the user's APN, the user selects an uplink GTP-U tunnel destination address corresponding to the APN and user information (such as an IP address or the user) corresponding to the APN from the traffic distribution table configured in step 500. Other information that can uniquely identify the user is sent together to the radio network controller RNC, and the radio network controller RNC receives the information sent by the SGSN and stores it.
- user information such as an IP address or the user
- the user sends a data stream to the radio network controller RNC through the base station.
- the radio network controller determines the user to which the received data stream belongs, and encapsulates the destination address of the corresponding uplink GTP-U tunnel according to the APN in the user information, and sends the encapsulated packet to the offload. device.
- the traffic distribution device After receiving the data flow, the traffic distribution device obtains the destination address of the uplink GTP-U tunnel of the data packet in the data flow, and determines the traffic off policy of the user according to the obtained destination address of the GTP-U tunnel and the stored traffic distribution table. The user's data stream is offloaded.
- the specific shunt can be: 570-A, sending a data stream encapsulating a destination address of a specific uplink GTP-U tunnel to the Internet or a specific network such as an IP/MPLS network; or
- the data stream that does not encapsulate the destination address of the specific uplink GTP-U tunnel is sent to the VAS or other special function service processing server through the SGSN and the GGSN.
- the destination address of the specific uplink GTP-U tunnel refers to the destination address of the upstream GTP-U tunnel corresponding to the APN of the offloading router and the APN to which the user needs to be offloaded.
- the method further includes the step of acquiring the second offloading policy by the offloading device.
- Specific methods that can be used include:
- the offloading device parses the data packet in the received data stream to obtain the IP address of the user.
- the traffic distribution device sends a policy request message to the policy server, where the policy request message carries the parsed IP address.
- the policy request message is used to request a second offload policy for the user from the policy server.
- the policy server finds the user information according to the user's IP address, and generates a second traffic distribution policy according to the user information, and sends the generated second traffic distribution policy to the traffic distribution device.
- the offloading device parses the data packet in the received data stream to obtain the IP address of the user.
- the traffic distribution device sends a user information request message to the policy server, where the user information request message carries the parsed IP address.
- the policy server searches for the user information according to the request message, and sends the found user information to the traffic distribution device, and the traffic distribution device generates a second traffic distribution policy according to the received user information.
- the traffic distribution device After the data stream is received by the traffic distribution device, the data flow is split according to the destination address of the uplink GTP-U tunnel of the data packet in the data flow, and the traffic distribution device can perform the uplink according to the data packet in the data flow.
- the destination address of the GTP-U tunnel determines the data flow to be offloaded, and the data flow is offloaded according to the obtained second traffic distribution policy.
- the second traffic distribution policy is the same as the traffic distribution policy in the embodiment shown in FIG.
- the possible shunting methods further include:
- the high value data stream in the data stream encapsulating the destination address of the specific uplink GTP-U tunnel is sent to the VAS or other specially functioned service processing server through the SGSN and the GGSN.
- the method further includes the step of charging the user.
- the GGSN and the offloading device respectively generate a charging packet for the data stream that is offloaded to the GGSN and the data stream that is offloaded to the Internet or other specific network, and report the accounting packet to the accounting server (for example, the AAA server), and the AAA server pairs the GGSN and the traffic distribution device.
- the separately reported accounting packets are combined and charged according to the charging identifier.
- the traffic distribution table in this embodiment is only an example.
- a person skilled in the art can also provide other different traffic distribution tables according to the embodiment of the present invention, for example, setting a user that does not need to be offloaded in the traffic distribution table, or according to the service content. Perform shunting and the like.
- the above improvements and modifications are within the scope of the present invention.
- the traffic offloading policy may be determined by the traffic splitting table formed by the user's APN and its corresponding uplink GTP-U tunnel destination address, or may be generated by the traffic splitting table and other information generated by the user.
- the traffic splitting policy determines the traffic splitting strategy of the data flow, which avoids the problem that the network traffic cost is high due to the SGSN, GGSN, and VAS.
- the embodiment of the present invention further provides a traffic distribution device, which is applied to a mobile communication system, and is used to implement the network traffic offloading method according to various embodiments of the present invention.
- 6-8 is a schematic structural diagram of an embodiment of a shunt device according to the present invention.
- the offloading device optionally further includes a first parsing module 630, where the first parsing module is configured to parse the data in the data stream received by the first receiving module 610, when the shunting table is used as the shunting policy.
- the packet obtains the destination address of the outer GTP-U tunnel of the data packet, and the storage module 640 is configured to store the traffic distribution table.
- the traffic distribution table stores the access point name APN and the uplink GTP-U tunnel that need to be offloaded.
- the offloading device When the offloading device obtains the offloading policy from the policy server, the offloading device optionally includes a second parsing module 650, which parses the data packet in the data stream received by the first receiving module 610, and obtains The user's IP address, the traffic distribution device further includes a sending module 660, configured to send a policy request message to the policy server to request a traffic off policy for the user, and carry the user's IP address in the policy request message; further, the traffic distribution device The second receiving module 670 is further configured to receive the user's offload policy from the policy server.
- a sending module 660 configured to send a policy request message to the policy server to request a traffic off policy for the user, and carry the user's IP address in the policy request message
- the second receiving module 670 is further configured to receive the user's offload policy from the policy server.
- the traffic distribution device optionally includes a second parsing module 650, and the second parsing module 650 processes the data packet in the received data stream. Performing the parsing to obtain the IP address of the user.
- the offloading module further includes a sending module 660, configured to send a user information request message to the policy server to request user information of the user, and the shunting module further includes a receiving module 670, configured to receive the policy.
- the user information sent by the server, the branching device may further include a generating module 680, configured to generate a splitting policy of the user according to the user information.
- the obtaining module 620 may further include all or part of the modules corresponding to 630-680.
- the obtaining module 620 may include a first parsing module 630 and a storage module 640, and a second parsing module 650, a sending module 660, and a receiving module 670. Then, the shunting module 690 parses the obtained information according to the first parsing module 630 and the storage module 640.
- the offloading table performs the first shunting decision, and performs the second shunting decision according to the policy received by the receiving module 670; or the shunting module 690 performs the first time according to the information parsed by the first parsing module 630 and the shunting table in the storage module 640.
- the offloading decision is performed according to the strategy generated by the generating module 680, and finally the more detailed network traffic offloading is implemented.
- the traffic distribution module 690 of the traffic distribution device forwards the data flow received by the receiving module 610 according to the traffic distribution policy.
- the direction of forwarding the data flow is different according to the different traffic distribution policies:
- the offloading module 690 obtains the outer uplink GTP-U of the data packet according to the first parsing module 630, when the offloading of the outer GTP-U tunnel destination address of the data packet in the data stream is required.
- the tunnel destination address and the traffic distribution table in the storage module 640 may send the data stream with the destination address of the outer uplink GTP-U tunnel in the data packet to the Internet or other specific network, and there is no outer uplink GTP in the data packet.
- the data stream of the destination address of the -U tunnel is sent to the VAS or other service processing server.
- the invention can also be implemented in the reverse manner.
- the offloading module 690 can send the low value data stream to the Internet or other specific network according to the offloading policy received by the receiving module 670 from the policy server or the offloading policy generated by the generating module 680. Send high-value data streams to VAS or other business processing servers.
- the traffic distribution module 690 may send the data flow with low real-time requirement or low priority according to the traffic distribution policy received by the receiving module 670 from the policy server or the traffic distribution policy generated by the generating module 680.
- data streams with high real-time requirements or high priority are sent to VAS or other business processing servers.
- the first parsing module 630 and the second parsing module 650 in the embodiment of the present invention may be separately configured or may be combined.
- the first receiving module 610 and the second receiving module 670 in the embodiment of the present invention may be separately configured or may be combined. Settings.
- the offloading device in the embodiments of the present invention may further include a charging module (not shown) for generating a charging packet for a data stream that is offloaded to the Internet or other specific network, and the charging is performed.
- the packet is sent to the accounting server for charging, and the charging packet carries the charging identifier of the user.
- the shunting device in the embodiment of the present invention can implement the method embodiments of the present invention. Therefore, regarding the detailed functions of the shunting device in the embodiments of the present invention, reference may be made to the foregoing method embodiments of the present invention.
- the embodiment of the present invention further provides a policy server, which can be combined with other devices to implement the foregoing method embodiments of the present invention.
- the embodiment of the present invention further provides a serving GPRS support node SGSN, which can implement the method shown in FIG. 5 and its derivative method.
- the embodiment of the present invention further provides a radio network controller RNC, which can implement the method shown in FIG. 5 and its derivative method.
- the foregoing embodiments of the present invention enable the traffic distribution device to obtain a corresponding traffic distribution policy according to the data flow sent by the forwarding plane, and send the data flow with low value, low real-time requirement, or low priority to the Internet or other specific network, and the high value is
- the data stream with high real-time requirements or high priority is sent to high-value devices such as SGSN, GGSN, and VAS, which reduces the networking cost.
- the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. .
- the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
- a hard disk or optical disk or the like includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009801500115A CN102177743B (zh) | 2009-09-24 | 2009-09-24 | 一种网络流量分流方法、设备及系统 |
EP09849661.5A EP2472944B1 (en) | 2009-09-24 | 2009-09-24 | Method and device for offloading network traffic |
PCT/CN2009/074201 WO2011035473A1 (zh) | 2009-09-24 | 2009-09-24 | 一种网络流量分流方法、设备及系统 |
US13/428,989 US9066256B2 (en) | 2009-09-24 | 2012-03-23 | Method, device and system for offloading network traffic |
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Also Published As
Publication number | Publication date |
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EP2472944A4 (en) | 2012-08-22 |
EP2472944A1 (en) | 2012-07-04 |
CN102177743A (zh) | 2011-09-07 |
US20120176994A1 (en) | 2012-07-12 |
US9066256B2 (en) | 2015-06-23 |
CN102177743B (zh) | 2013-04-17 |
EP2472944B1 (en) | 2017-08-09 |
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