WO2016131240A1 - 分组数据业务的处理系统、方法及装置 - Google Patents

分组数据业务的处理系统、方法及装置 Download PDF

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Publication number
WO2016131240A1
WO2016131240A1 PCT/CN2015/088904 CN2015088904W WO2016131240A1 WO 2016131240 A1 WO2016131240 A1 WO 2016131240A1 CN 2015088904 W CN2015088904 W CN 2015088904W WO 2016131240 A1 WO2016131240 A1 WO 2016131240A1
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Prior art keywords
cdn
network
apn
ran
ran cdn
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PCT/CN2015/088904
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English (en)
French (fr)
Inventor
陈淑
叶海洋
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中兴通讯股份有限公司
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Priority to US15/551,364 priority Critical patent/US10419963B2/en
Priority to EP15882379.9A priority patent/EP3261321A4/en
Publication of WO2016131240A1 publication Critical patent/WO2016131240A1/zh

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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
    • H04W28/0205—Traffic management, e.g. flow control or congestion control at the air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/2866—Architectures; Arrangements
    • H04L67/289—Intermediate processing functionally located close to the data consumer application, e.g. in same machine, in same home or in same sub-network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • 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
    • H04W28/0273—Traffic management, e.g. flow control or congestion control adapting protocols for flow control or congestion control to wireless environment, e.g. adapting transmission control protocol [TCP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/17—Selecting a data network PoA [Point of Attachment]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/30—Types of network names
    • H04L2101/375—Access point names [APN]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
    • H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]

Definitions

  • the present invention relates to the field of communications, and in particular to a processing system, method and apparatus for packet data services.
  • FIG. 1 is a schematic structural diagram of a UTRAN accessing a PS in the prior art. As shown in FIG. 1, the entire PS system is divided into a 3G radio access network and a 3G core network.
  • a base station NodeB
  • a 3G radio network controller Radio Network Controller, RNC for short
  • RNC Radio Network Controller
  • HLR Home Location Register
  • SGSN Serving GPRS Support Node
  • GGSN Gateway GPRS Support Node
  • FIG. 2 is a schematic structural diagram of an E-UTRAN accessing an EPS in the prior art. As shown in FIG. 2, the entire EPS system is divided into a 4G radio access network and a 4G core network.
  • the 4G radio access network includes an Evolved NodeB (eNodeB), which is mainly responsible for transmitting and receiving wireless signals, and is connected to the terminal through the air interface to manage radio resources, resource scheduling, and access control of the air interface.
  • eNodeB Evolved NodeB
  • the 4G core network includes a Home Subscriber Server (HSS), a Mobility Management Entity (MME), a Serving Gateway (S-GW), and packet data. Gateway (PDN Gateway, P-GW for short).
  • HSS Home Subscriber Server
  • MME Mobility Management Entity
  • S-GW Serving Gateway
  • PDN Gateway P-GW for short.
  • the Content Delivery Network caches content in different locations and directs user requests to the nearest cache server through load balancing and other technologies to obtain content and improve the response speed of users visiting the website.
  • the CDN serves the user's request in a more efficient manner through the judgment of the user's proximity and server load.
  • CDNs can be deployed in GGSN.
  • P-GW natural support
  • the prior art can not solve the deployment of CDN in the rest of the mobile network Location, such as the problem of sinking further into the wireless network.
  • an embodiment of the present invention provides a processing system, method, and apparatus for packet data services.
  • a processing system for packet data services including: a serving general packet radio service support node SGSN, configured to obtain access in a Universal Mobile Telecommunications System (UMTS) An Access Point Name (APN) and/or a Radio Network Controller (RNC) identifier, and a Radio Access Network Content (Radio Access Network Content) is enabled in the UMTS.
  • a Delivery Network (referred to as RAN CDN), which selects the RAN CDN to process packet data services in the UMTS network according to the APN and/or the RNC identifier.
  • the SGSN is further configured to: the RAN CDN is not enabled in the UMTS, and the GGSN corresponding to the APN is selected according to the APN to process a packet data service in the UMTS network. .
  • the SGSN is further configured to select the RAN CDN according to the APN and/or the RNC identifier by: when the RAN CDN is enabled in the UMTS, And selecting, according to the topology connection relationship of the specified network, the RAN CDN that is connected to the RNC, where the RNC is indicated by the RNC identifier.
  • the method further includes: the RAN CDN, including: a CDN, a GGSN, where the CDN and the GGSN pass a Transmission Control Protocol/Internet Protocol (TCP/IP) ) to interact.
  • the RAN CDN including: a CDN, a GGSN, where the CDN and the GGSN pass a Transmission Control Protocol/Internet Protocol (TCP/IP) ) to interact.
  • TCP/IP Transmission Control Protocol/Internet Protocol
  • the system further includes: a Domain Name Server (DNS), which is connected to the RAN CDN, and is configured to feed back the Internet Protocol IP address of the RAN CDN to the SGSN;
  • DNS Domain Name Server
  • the SGSN is further configured to send a packet data protocol PDP request to the RAN CDN corresponding to the IP address, where the PDP request is used to request processing, by the RAN CDN, packet data received by the RAN CDN.
  • a processing system for packet data services including:
  • MME Mobile Management Entity
  • LTE Long-Term Evolution
  • MME Mobile Management Entity
  • the MME is further configured to: when the RAN CDN is not enabled in the LTE, select a System Architecture Evolution Gateway corresponding to the APN according to the APN. Referred to as SAE-GW), the packet data service in the LTE network is processed.
  • SAE-GW System Architecture Evolution Gateway
  • the MME is further configured to: when the RAN CDN is enabled in the LTE, select, according to the topology connection relationship of the specified network, in a specified network determined according to the APN The RAN CDN connected to the eNodeB, wherein the eNodeB is indicated by the eNodeB identity.
  • the method further includes: the RAN CDN, including: a content distribution network CDN, a SAE-GW, wherein the CDN interacts with the SAE-GW by using a Transmission Control Protocol/Network Protocol TCP/IP.
  • the RAN CDN including: a content distribution network CDN, a SAE-GW, wherein the CDN interacts with the SAE-GW by using a Transmission Control Protocol/Network Protocol TCP/IP.
  • the system further includes: a DNS, connected to the RAN CDN, configured to feed back an Internet Protocol IP address of the RAN CDN to the MME; wherein the MME is further configured to The IP address corresponds to the RAN CDN Transmit Packet Data Protocol (PDP) request, and the PDP request is set to request the RAN CDN to process the packet data received by the RAN CDN.
  • a DNS connected to the RAN CDN, configured to feed back an Internet Protocol IP address of the RAN CDN to the MME
  • the MME is further configured to The IP address corresponds to the RAN CDN Transmit Packet Data Protocol (PDP) request, and the PDP request is set to request the RAN CDN to process the packet data received by the RAN CDN.
  • PDP Packet Data Protocol
  • a method for processing a packet data service comprising: acquiring an access point name APN and/or a radio network controller RNC identifier in a universal mobile communication system UMTS; When the radio access network content distribution network RAN CDN is enabled, the RAN CDN is selected to process the packet data service in the UMTS network according to the APN and/or the RNC identifier.
  • the method further includes: when the RAN CDN is not enabled in the UMTS, selecting, according to the APN, a GGSN corresponding to the APN to process a packet data service in the UMTS network. .
  • selecting the RAN CDN according to the APN and/or the RNC identifier includes: selecting, according to the topology connection relationship of the specified network, the connection with the RNC according to the specified network determined according to the APN The RAN CDN, wherein the RNC is indicated by the RNC identity.
  • the RAN CDN is obtained by using a network element supporting a GGSN and a content distribution network CDN as the RAN CDN, wherein the CDN and the GGSN pass a transmission control protocol/network protocol. TCP/IP interacts.
  • the network function of the RAN CDN includes: a network function supported by the GGSN, a network function supported by the edge CDN, and a transparent cache.
  • the method further includes: sending a DNS query request to the domain name system DNS, and receiving a DNS query response message corresponding to the DNS query request;
  • the DNS query response message acquires an internet protocol IP address of the RAN CDN; and sends a packet data protocol PDP request to the RAN CDN corresponding to the IP address, wherein the PDP request is used to request processing, by the RAN CDN, the RAN Packet data received by the CDN.
  • a method for processing a packet data service including: acquiring an access point name APN and/or an evolved base station eNodeB identifier in a long term evolution system LTE; When the radio access network content distribution network RAN CDN function, the RAN CDN is selected according to the APN and/or the eNodeB identifier to process packet data services in the LTE network.
  • the method further includes: when the RAN CDN function is not enabled in the LTE, selecting a system architecture evolution gateway SAE-GW corresponding to the APN according to the APN.
  • selecting the RAN CDN according to the APN and/or the eNodeB identifier includes: when the RAN CDN is enabled in the LTE, in a specified network determined according to the APN, Selecting the RAN CDN that is connected to the eNodeB according to the topology connection relationship of the specified network, where the eNodeB is indicated by the eNodeB identifier.
  • the RAN CDN is obtained by using a network element supporting a system architecture evolution gateway SAE-GW and a content distribution network CDN as the RAN CDN, wherein the CDN and the SAE- The GW interacts through the Transmission Control Protocol/Network Protocol TCP/IP.
  • SAE-GW system architecture evolution gateway
  • TCP/IP Transmission Control Protocol/Network Protocol
  • the network function of the RAN CDN includes: a network function supported by the SAE-GW, a network function supported by the edge CDN, and a transparent cache.
  • the method further includes: sending a DNS query request to the domain name system DNS, and receiving a DNS query response message corresponding to the DNS query request;
  • the DNS query response message acquires an internet protocol IP address of the RAN CDN; and sends a packet data protocol PDP request to the IP address corresponding RAN CDN.
  • a processing apparatus for packet data services comprising: an obtaining module configured to acquire an access point name APN and/or a radio network controller RNC identifier in a universal mobile communication system UMTS; a module, configured to: when the UMTS has enabled the radio access network content distribution network RAN CDN, select the RAN CDN to process packet data services in the UMTS network according to the APN and/or the RNC identifier .
  • a processing apparatus for packet data service including: an obtaining module, configured to acquire an access point name APN and/or an evolved base station eNodeB identifier in a Long Term Evolution System (LTE); a selection module, setting In order to enable the radio access network content distribution network RAN CDN in the LTE, the RAN CDN is selected to process the packet data service in the LTE network according to the APN and/or the eNodeB identifier.
  • LTE Long Term Evolution System
  • the RAN CDN when the RAN CDN is enabled in the UMTS, the RAN CDN is preferentially selected to process the packet data service in the current UMTS system, and the related art is solved.
  • the network element that supports both the CDN network function and the network function of the mobile network network can be selected to handle the problem of the packet data service in the current system, thereby expanding the network function of the UMTS and providing a method for processing the current packet data service. way.
  • FIG. 1 is a schematic structural diagram of a UTRAN accessing a PS in the prior art
  • FIG. 2 is a schematic structural diagram of an E-UTRAN accessing an EPS in the prior art
  • FIG. 3 is a structural block diagram of a processing system for packet data services according to an embodiment of the present invention.
  • FIG. 4 is a block diagram showing another structure of a processing system for packet data services according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a CDN and a GGSN being deployed as a RAN CDN according to an embodiment of the present invention
  • FIG. 6 is an architectural diagram of a RAN CDN deployed in UMTS according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of a method of processing a packet data service according to an embodiment of the present invention.
  • FIG. 8 is a structural block diagram of a processing apparatus for packet data services according to an embodiment of the present invention.
  • FIG. 9 is another structural block diagram a of a processing system for packet data services according to an embodiment of the present invention.
  • FIG. 10 is another structural block diagram b of a processing system for packet data services according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a CDN and a SAE-GW being deployed as a RAN CDN according to an embodiment of the present invention
  • FIG. 12 is a structural diagram of RAN CDN deployed in LTE according to an embodiment of the present invention.
  • FIG. 13 is another flowchart of a method for processing a packet data service according to an embodiment of the present invention.
  • FIG. 14 is a block diagram showing another structure of a processing apparatus for packet data services according to an embodiment of the present invention.
  • 15 is a flowchart of selecting a RAN CDN and providing a service in a UMTS scenario according to a preferred embodiment 1 of the present invention
  • 16 is a flow chart of selecting a RAN CDN and providing a service in an LTE scenario according to a preferred embodiment 2 of the present invention.
  • FIG. 3 is a structural block diagram of a processing system for packet data services according to an embodiment of the present invention. As shown in FIG. 3, the method includes:
  • the SGSN 300 configured to obtain the APN and/or RNC identity in UMTS 30, and has been enabled in UMTS 30 above
  • the RAN CDN 302 is selected to process the packet data service in the UMTS 30 based on the APN and/or RNC identity described above.
  • the RAN CDN when the RAN CDN function is enabled (activated) in the UMTS, the RAN CDN is preferentially selected to process the packet data service in the current UMTS system.
  • the technical means solves the problem that the network element of the CDN network function and the mobile network is simultaneously supported to process the packet data service in the current system, thereby expanding the network function of the UMTS and providing a current processing solution.
  • the SGSN 30 is further configured to process the packet data service in the UMTS network according to the APN selection and the GGSN corresponding to the APN, that is, if the network is enabled.
  • the RAN CDN is preferentially selected to process the packet data service in the current UMTS system.
  • the GGSN is directly selected to process the packet data service in the UMTS network.
  • the SGSN 300 may also select the RAN CDN according to the RNC identifier.
  • the RAN CDN function is enabled in the UMTS, the topology connection relationship according to the specified network is selected in the specified network determined according to the APN.
  • the RNC is indicated by the RNC identifier.
  • FIG. 4 is another structural block diagram of a processing system for packet data services according to an embodiment of the present invention.
  • the processing system for packet data services further includes: RAN CDN 302, including: content distribution network CDN 3020, GGSN3022
  • RAN CDN 302 including: content distribution network CDN 3020, GGSN3022
  • the foregoing inclusion relationship may be understood to be that the content distribution network entity and the GGSN are deployed in the same gateway.
  • the CDN and the GGSN pass the transmission control protocol/network.
  • the protocol TCP/IP interacts (as shown in Figure 5).
  • the system further includes: a domain name system DNS 304, connected to the RAN CDN 302, configured to feed back the Internet Protocol IP address of the RAN CDN to the SGSN 300; wherein the SGSN 300 is further configured to Sending a packet data protocol PDP request to the RAN CDN corresponding to the IP address, where the PDP request is used to request the RAN CDN to process the packet data received by the RAN CDN, as shown in FIG. 6, FIG. 6 specifically describes the deployment in the UMTS system.
  • the HLR, SGSN, GGSN, RAN CDN, DNS Server, Service Node, and Center Node are included in the architecture.
  • the DNS Server implements the domain name resolution process
  • the DNS response carries the IP address of the RAN CDN in the DNS response to implement local scheduling of the user request.
  • FIG. 7 is a flowchart of a method for processing a packet data service according to an embodiment of the present invention, as shown in FIG. 7. As shown, the following steps are included:
  • Step S702 acquiring an APN and/or an RNC identifier in the UMTS.
  • Step S704 when the RAN CDN is enabled in the UMTS, select the RAN CDN to process the packet data service in the UMTS network according to the APN and/or the RNC identifier.
  • the RAN CDN when the RAN CDN is enabled (activated) in the UMTS, the RAN CDN is preferentially selected to process the packet data service in the current UMTS system, and the related art cannot be selected to support at the same time.
  • the network element with CDN network function and mobile network handles the problem of packet data service in the current system, thereby expanding the network function of UMTS and providing a way to process the current packet data service.
  • the gateway general packet radio service support node GGSN corresponding to the APN is selected according to the APN to process the packet data service in the UMTS network, that is, If the RAN CDN is enabled in the network, the RAN CDN is preferentially selected to process the packet data service in the current UMTS system. If the RAN CDN is not enabled, the GGSN is directly selected to process the packet data service in the UMTS network. can.
  • the foregoing step S702 may be implemented by: selecting, in the specified network determined according to the APN, the RAN CDN connected to the RNC according to the topological connection relationship of the specified network.
  • the RNC is indicated by the RNC identifier.
  • the network element supporting the GGSN and the content distribution network CDN is used as the RAN CDN, wherein the CDN and the GGSN interact through TCP/IP, that is, the network function of the RAN CDN includes at least the network function of the GGSN and the network of the CDN.
  • the function more specifically, can be embodied by the network functions supported by the GGSN, supported by the edge CDN, and transparently cached.
  • the method further includes: sending a DNS query request to the DNS, and receiving a DNS query response message corresponding to the DNS query request; and acquiring the RAN CDN from the DNS query response message.
  • the Internet Protocol IP address sending a Packet Data Protocol (PDP) request to the RAN CDN corresponding to the IP address, wherein the PDP request is used to request the RAN CDN to process the packet data received by the RAN CDN.
  • PDP Packet Data Protocol
  • FIG. 8 is a structural block diagram of a processing apparatus for packet data services according to an embodiment of the present invention. As shown in Figure 8, the device includes:
  • the obtaining module 80 is configured to obtain an APN and/or an RNC identifier in the UMTS;
  • the selection module 82 is connected to the acquisition module 80, and is configured to select the RAN CDN to process the UMTS network according to the APN and/or the RNC identifier when the radio access network content distribution network RAN CDN is enabled in the UMTS. Packet data service.
  • the RAN CDN when the RAN CDN is enabled (activated) in the UMTS, the RAN CDN is preferentially selected to process the packet data service in the current UMTS system, and the related art cannot be solved.
  • the problem of simultaneously supporting the network data in the CDN network function and the mobile network to handle the packet data service in the current system is extended, thereby expanding the UMTS and providing a way to process the current packet data service.
  • FIG. 9 is another structural block diagram a of the processing system for packet data services according to an embodiment of the present invention. As shown in FIG. 9, the method includes:
  • the mobility management entity MME 900 is configured to acquire the APN and/or the eNodeB identifier in the LTE 90, and when the RAN CDN is enabled in the LTE, select the RAN CDN 902 according to the APN and/or the eNodeB identifier to process the LTE network. Packet data service.
  • the RAN CDN when the RAN CDN is enabled (activated) in the LTE, the RAN CDN is preferentially selected to process the packet data service in the current LTE system.
  • the method solves the problem that the network element that supports the CDN network function and the mobile network can be simultaneously processed to process the packet data service in the current system, thereby expanding the LTE and providing a method for processing the current packet data service. way.
  • the MME 900 is further configured to process the packet data service in the LTE network by using the system architecture evolution gateway SAE-GW corresponding to the APN according to the APN, and further, the MME 900,
  • SAE-GW system architecture evolution gateway corresponding to the APN according to the APN
  • the MME 900 When the RAN CDN is enabled in the foregoing LTE, in the specified network determined according to the APN, the RAN CDN corresponding to the RAN CDN connected by the eNodeB is selected according to the topological connection relationship of the specified network.
  • the eNodeB is indicated by the above eNodeB identity.
  • FIG. 10 is another structural block diagram b of a processing system for packet data services according to an embodiment of the present invention.
  • the system further includes a RAN CDN 902, including: a content distribution network CDN 9020, SAE-GW 9022, where The CDN described above interacts with the SAE-GW described above via TCP/IP (as shown in FIG. 11).
  • the system further includes: a domain name system DNS 904, connected to the RAN CDN, configured to feed back the Internet Protocol IP address of the RAN CDN to the MME; wherein the MME is further configured to correspond to the IP address.
  • DNS 904 connected to the RAN CDN, configured to feed back the Internet Protocol IP address of the RAN CDN to the MME; wherein the MME is further configured to correspond to the IP address.
  • the RAN CDN sends a packet data protocol PDP request, and the PDP request is used to request the RAN CDN to process the packet data received by the RAN CDN.
  • the RAN CDN is deployed in an LTE architecture, in which the RAN CDN is configured.
  • IP address which implements local scheduling of user requests.
  • FIG. 13 is another flowchart of a method for processing a packet data service according to an embodiment of the present invention, including Following steps Step:
  • Step S1302 Acquire an APN and/or an eNodeB identifier in the LTE.
  • Step S1304 When the RAN CDN function is enabled in the LTE, the RAN CDN is selected according to the APN and/or the eNodeB identifier to process the packet data service in the LTE network.
  • the RAN CDN function when the RAN CDN function is enabled (activated) in the LTE, the RAN CDN is preferentially selected to process the packet data service in the current LTE system, and the related art cannot be selected at the same time.
  • the system architecture evolution gateway SAE-GW corresponding to the APN is selected according to the APN.
  • the foregoing step S1304 may be implemented by using the following technical solution: when the RAN CDN function is enabled in the foregoing LTE, selecting, in the specified network determined according to the APN, the eNodeB according to the topology connection relationship of the specified network. Corresponding to the above-mentioned RAN CDN, wherein the eNodeB is indicated by the eNodeB identifier.
  • the foregoing RAN CDN is obtained by using a network element supporting the SAE-GW and the CDN as the RAN CDN, wherein the CDN and the SAE-GW interact by using a Transmission Control Protocol/Network Protocol TCP/IP, RAN CDN Including: supported by SAE-GW, supported by edge CDN, transparent cache.
  • step S1304 After performing the technical solution of step S1304, the following process may also be performed: sending a DNS query request to the domain name system DNS, and receiving a DNS query response message corresponding to the foregoing DNS query request; acquiring the RAN CDN from the DNS query response message. Internet Protocol IP address; send a Packet Data Protocol PDP request to the RAN CDN corresponding to the above IP address.
  • FIG. 14 is a block diagram showing another structure of a processing apparatus for packet data services according to an embodiment of the present invention. As shown in Figure 14, the device includes:
  • the obtaining module 140 is configured to obtain an APN and/or an eNodeB identifier in the LTE.
  • the selection module 142 is connected to the acquisition module 142, and is configured to select the RAN CDN to process the LTE according to the APN and/or the eNodeB identifier when the radio access network content distribution network RAN CDN is enabled in the LTE. Packet data service in the network.
  • the RAN CDN function When the RAN CDN function is enabled (activated) in the LTE, the RAN CDN is preferentially selected to process the packet data service in the current LTE system, and the related art is solved. It is not possible to select a network element that supports both the CDN network function and the mobile network network to handle the packet data service in the current system, thereby expanding LTE and providing a way to process the current packet data service.
  • step 1500 the UE sends an attach request (Attach Request) message to the SGSN, where the message carries parameters such as APN.
  • the APN is an APN that activates the RAN CDN function.
  • step 1502 the SGSN sends a Location Update Request (Update Location Request) message to the HLR.
  • Location Update Request Update Location Request
  • step 1504 the HLR answers the SGSN with an Update Location Accept message.
  • Step 1506 the SGSN answers an Attach Accept message to the UE and attaches to the 3G network.
  • Step 1508 The UE sends an Active PDP Request message to the SGSN.
  • step 1510 the SGSN sends a DNS Query Request message to the DNS server.
  • the SGSN extends the APN domain name with the RNC ID in the DNS query request message, and the RNC ID example is internet.rnc0001.mnc021.mcc206.gprs, where rnc0001 The RNC of the coverage area where the UE is located.
  • the SGSN continues to carry the original APN, such as blackberry.mnc021.mcc206.gprs, in the DNS query request message.
  • the DNS Server answers a DNS Query Response message to the SGSN.
  • the DNS query response message carries the RAN CDN address.
  • the DNS server needs to modify the DNS resolution file to add a configuration record of the correspondence between the RNC ID and the IP address of the RAN CDN. Examples are as follows:
  • the SGSN obtains the RAN CDN address from the DNS query response message, and sends a Create PDP Request message to the selected RAN CDN.
  • step 1516 the RAN CDN replies to the SGSN with a Create PDP Response message.
  • the SGSN establishes a radio access bearer (RAB) between the SGSN and the RNC.
  • RAB radio access bearer
  • the SGSN sets the IP address of the RAN CDN and the tunnel endpoint identifier (Tunnel Endpoint Identification, TEID for short). ) is transmitted to the RNC.
  • the GPRS Tunnel Protocol for the User Plane (GTP-U) tunnel between the RNC and the RAN CDN is successfully established.
  • the SGSN returns an Activate PDP Response message to the UE.
  • the UE sends a data packet to the RAN CDN via the RNC.
  • the RAN CDN processes all data packets, but only buffers packet data with a destination port of 80, 8080, 8088 or 21 for subsequent direct service delivery to the user.
  • the RAN CDN supports all functions related to the GPRS Tunnel Protocol for the Control Plane (GTP-C) and GTP-U.
  • the RAN CDN supports all the functions supported by the Service Node.
  • Step 1522 When the UE initiates the deactivation of the PDP process, the SGSN sends a Delete PDP Request message to the RAN CDN.
  • step 1524 the RAN CDN answers the Delete PDP Response (Delete PDP Response) message to the SGSN.
  • Delete PDP Response Delete PDP Response
  • a method for selecting a RAN CDN and providing a service in an LTE scenario is described by using a CDN and a SAE-GW (including the S-GW and the P-GW) as an example, as shown in FIG.
  • step 1600 the UE sends an Attach Request/PDN Connection Request (PDN Connection Request) message to the MME, where the message carries parameters such as APN.
  • the APN is an APN that activates the RAN CDN function.
  • step 1602 the MME sends a DNS Query Request message to the DNS server.
  • the SGSN extends the APN domain name with the eNodeB ID in the DNS query request message, and the eNodeB ID example is internet.enb0001.epc.mnc021.mcc206.3gppnetwork. Org. Where enb0001 is the eNodeB of the coverage area where the UE is located.
  • the MME continues to carry the original APN in the DNS query request message, such as blackberry.epc.mnc021.mcc206.3gppnetwork.org .
  • Step 1604 the DNS Server answers a DNS Query Response message to the MME.
  • the DNS query response message carries the RAN CDN address.
  • the DNS server needs to modify the DNS resolution file to increase the configuration record of the correspondence between the eNodeB ID and the IP address of the RAN CDN. Examples are as follows:
  • Step 1606 The MME obtains the RAN CDN address from the DNS query response message, and sends a Create Session Request message to the selected RAN CDN.
  • Step 1608 the RAN CDN replies to the MME with a Create Session Response message.
  • the MME establishes a bearer between the MME and the eNodeB.
  • the MME transmits the IP address of the RAN CDN and the Tunnel Endpoint Identification (TEID) to the eNodeB.
  • the GPRS Tunnel Protocol for the User Plane (GTP-U) tunnel between the eNodeB and the RAN CDN is successfully established.
  • the MME returns an Activation Accept/PDN Connection Accept message to the UE.
  • the UE sends a data packet to the RAN CDN via the eNodeB.
  • the RAN CDN processes all data packets, but only buffers packet data with a destination port of 80, 8080, 8088 or 21 for subsequent direct service delivery to the user.
  • the RAN CDN supports all functions related to the GPRS Tunnel Protocol for the Control Plane (GTP-C) and GTP-U.
  • the RAN CDN supports all the functions supported by the Service Node.
  • Step 1614 When the UE initiates a process of detaching or disconnecting the PDN connection, the MME sends a Delete Session Request message to the RAN CDN.
  • step 1616 the RAN CDN answers the Delete Session Response message to the MME.
  • the embodiments of the present invention achieve the following technical effects: the related art can solve the problem that the CDN network function and the network element of the mobile network are simultaneously supported to process the packet data service in the current system, thereby expanding the problem.
  • the network function of LTE provides a way to handle the current packet data service.
  • a storage medium is further provided, wherein the software includes the above-mentioned software, including but not limited to: an optical disk, a floppy disk, a hard disk, an erasable memory, and the like.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the foregoing technical solution provided by the present invention can be applied to the process of processing a packet data service, and when the RAN CDN of the radio access network content distribution network is enabled in the UMTS, the RAN CDN is preferentially selected to process the current UMTS and LTE.
  • the technical means of packet data service in the system and accelerating solves the problem in the related art that the network element having the CDN network function and the network function of the mobile network network cannot be selected to handle the acceleration of the packet data service in the current system.
  • the network functions of the UMTS system, the LTE system, and the CDN are expanded, and a way to handle the acceleration of the current packet data service is provided.

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Abstract

本发明提供了一种分组数据业务的处理系统、方法及装置，其中，所述系统包括：SGSN，设置为获取通用移动通信系统UMTS中APN和/或RNC标识，以及在UMTS中已使能有RAN CDN时，根据APN和/或RNC标识选择RAN CDN处理UMTS网络中的分组数据业务，或包括:MME，设置为获取LTE中APN和/或eNodeB标识，以及在LTE中已使能RAN CDN时，根据APN和/或eNodeB标识选择RAN CDN处理LTE网络中的分组数据业务,采用上述技术方案，解决了相关技术中，不能选择同时支持有CDN网络功能和移动网络的网元来处理当前系统中的分组数据业务的问题，进而扩展了UMTS的网络功能。

Description

分组数据业务的处理系统、方法及装置 技术领域
本发明涉及通信领域，具体而言，涉及一种分组数据业务的处理系统、方法及装置。
背景技术
为了保持第三代移动通信系统在通信领域的竞争力，为用户提供速率更快、时延更低、以及更加个性化的移动通信服务，同时，降低运营商的运营成本，第三代合作伙伴计划(3rd Generation Partnership Project，简称为3GPP)标准工作组正致力于演进分组系统(Evolved Packet System，简称EPS)的研究。
图1为现有技术中UTRAN接入PS的结构示意图，如图1所示，整个PS系统分为3G无线接入网和3G核心网两部分。
在3G无线接入网中，包含了基站(NodeB)和3G无线网络控制器(Radio Network Controller，简称为RNC)，它主要负责无线信号的收发，通过空中接口和终端联系，管理空中接口的无线资源、资源调度、以及接入控制。
在3G核心网中，包含了归属位置寄存器(Home Location Register，简称为HLR)、服务GPRS支持节点(Serving GPRS Support Node，简称为SGSN)、网关GPRS支持节点(Gateway GPRS Support Node，简称为GGSN)。
图2为现有技术中E-UTRAN接入EPS的结构示意图，如图2所示，整个EPS系统分为4G无线接入网和4G核心网两部分。
4G无线接入网，包含了演进基站(Evolved NodeB，简称为eNodeB)，它主要负责无线信号的收发，通过空中接口和终端联系，管理空中接口的无线资源、资源调度、以及接入控制。
在4G核心网中，包含了归属用户服务器(Home Subscriber Server，简称为HSS)、移动性管理实体(Mobility Management Entity，简称为MME)、服务网关(Serving Gateway，简称为S-GW)和分组数据网关(PDN Gateway，简称为P-GW)。
而在宽带领域，内容分发网络(Content Delivery Network，简称为CDN)通过在不同地点缓存内容，通过负载均衡等技术将用户请求定向到最近的缓存服务器上获取内容，提高用户访问网站的响应速度。CDN通过用户就近性和服务器负载的判断，以一种更为高效的方式为用户的请求提供服务。
为了充分利用CDN的优势，移动网络运营商希望将CDN部署在移动网络中，将CDN与移动网络融合，加速移动用户的内容，提高响应速度，节约带宽，现有技术中，CDN可以部署在GGSN或P-GW之上，天然支持，然而，现有技术解决不了将CDN部署在移动网络其余 位置，比如进一步下沉到无线网络的问题。
针对相关技术中，不能选择同时支持有CDN网络功能和移动网络的网络功能的网元来处理当前系统中的分组数据业务的问题，尚未提出有效的解决方案。
发明内容
为了解决上述技术问题，本发明实施例提供了一种分组数据业务的处理系统、方法及装置。
根据本发明的一个实施例，提供了一种分组数据业务的处理系统，包括：服务通用分组无线业务支持节点SGSN，设置为获取通用移动通信系统(Universal Mobile Telecommunications System，简称为UMTS)中接入点名(Access Point Name，简称为APN)和/或无线网络控制器(Radio Network Controller，简称为RNC)标识，以及在所述UMTS中已使能有无线接入网内容分发网络(Radio Access Network Content Delivery Network，简称为RAN CDN)，根据所述APN和/或所述RNC标识选择所述RAN CDN处理所述UMTS网络中的分组数据业务。
在本发明实施例中，所述SGSN，还设置为在所述UMTS中未使能有所述RAN CDN，根据所述APN选择与所述APN对应的GGSN处理所述UMTS网络中的分组数据业务。
在本发明实施例中，所述SGSN还设置为通过以下步骤来根据所述APN和/或所述RNC标识选择所述RAN CDN：在所述UMTS中已使能有所述RAN CDN时，在根据所述APN确定的指定网络中，按照所述指定网络的拓扑连接关系选择与RNC连接的所述RAN CDN，其中，所述RNC由所述RNC标识指示。
在本发明实施例中，还包括：所述RAN CDN，包括：CDN、GGSN，其中，所述CDN与所述GGSN通过传输控制协议/网络协议(Transmission Control Protocol/Internet Protocol，简称为TCP/IP)进行交互。
在本发明实施例中，所述系统还包括：域名系统(Domain Name Server，简称为DNS)，与所述RAN CDN连接，设置为将所述RAN CDN的互联网协议IP地址反馈至所述SGSN；其中，所述SGSN还设置为向所述IP地址对应RAN CDN发送分组数据协议PDP请求，所述PDP请求用于向所述RAN CDN请求处理所述RAN CDN接收到的分组数据。
根据本发明的再一个实施例，还提供了一种分组数据业务的处理系统，其中，包括：
移动性管理实体(Mobile Management Entity，简称MME)，设置为获取长期演进系统(Long-Term Evolution，简称为LTE)中APN和/或eNodeB标识，以及在所述LTE中已使能RAN CDN时，根据所述APN和/或所述eNodeB标识选择所述RAN CDN处理所述LTE网络中的分组数据业务。
在本发明实施例中，所述MME，还设置为在所述LTE中未使能有所述RAN CDN时，根据所述APN选择与所述APN对应的系统架构演进网关(System Architecture Evolution Gateway， 简称为SAE-GW)处理所述LTE网络中的分组数据业务。
在本发明实施例中，所述MME，还设置为在所述LTE中已使能有所述RAN CDN时，在根据所述APN确定的指定网络中，按照所述指定网络的拓扑连接关系选择与由eNodeB连接的所述RAN CDN，其中，所述eNodeB通过所述eNodeB标识指示。
在本发明实施例中，还包括：所述RAN CDN，包括：内容分发网络CDN、SAE-GW，其中，所述CDN与所述SAE-GW通过传输控制协议/网络协议TCP/IP进行交互。
在本发明实施例中，所述系统还包括：DNS，与所述RAN CDN连接，设置为将所述RAN CDN的互联网协议IP地址反馈至所述MME；其中，所述MME还设置为向所述IP地址对应RAN CDN发送分组数据协议PDP请求，所述PDP请求设置为向所述RAN CDN请求处理所述RAN CDN接收到的分组数据。
根据本发明的另一个实施例，还提供了一种分组数据业务的处理方法，包括：获取通用移动通信系统UMTS中接入点名APN和/或无线网络控制器RNC标识；在所述UMTS中已使能有无线接入网内容分发网络RAN CDN时，根据所述APN和/或所述RNC标识选择所述RAN CDN处理所述UMTS网络中的分组数据业务。
在本发明实施例中，所述方法还包括：在所述UMTS中未使能有所述RAN CDN时，根据所述APN选择与所述APN对应的GGSN处理所述UMTS网络中的分组数据业务。
在本发明实施例中，根据所述APN和/或所述RNC标识选择所述RAN CDN，包括：在根据所述APN确定的指定网络中，按照所述指定网络的拓扑连接关系选择与RNC连接的所述RAN CDN，其中，所述RNC通过所述RNC标识指示。
在本发明实施例中，通过以下方式得到所述RAN CDN：将支持有GGSN和内容分发网络CDN的网元作为所述RAN CDN，其中，所述CDN和所述GGSN通过传输控制协议/网络协议TCP/IP进行交互。
在本发明实施例中，所述RAN CDN的网络功能包括：GGSN所支持的网络功能、边缘CDN所支持的网络功能、透明缓存。
在本发明实施例中，根据所述APN和/或所述RNC标识选择RAN CDN之后，还包括：向域名系统DNS发送DNS查询请求，并接收所述DNS查询请求对应的DNS查询响应消息；从所述DNS查询响应消息获取所述RAN CDN的互联网协议IP地址；向所述IP地址对应RAN CDN发送分组数据协议PDP请求，其中，所述PDP请求用于向所述RAN CDN请求处理所述RAN CDN接收到的分组数据。
根据本发明的另一个实施例，还提供了一种分组数据业务的处理方法，包括：获取长期演进系统LTE中接入点名APN和/或演进基站eNodeB标识；在所述LTE中已使能有无线接入网内容分发网络RAN CDN功能时，根据所述APN和/或所述eNodeB标识选择所述RAN CDN处理所述LTE网络中的分组数据业务。
在本发明实施例中，所述方法还包括：在所述LTE中未使能有所述RAN CDN功能时，根据所述APN选择与所述APN对应的系统架构演进网关SAE-GW。
在本发明实施例中，根据所述APN和/或所述eNodeB标识选择RAN CDN，包括：在所述LTE中已使能有所述RAN CDN时，在根据所述APN确定的指定网络中，按照所述指定网络的拓扑连接关系选择与eNodeB连接的所述RAN CDN，其中，所述eNodeB通过所述eNodeB标识指示。
在本发明实施例中，通过以下方式得到所述RAN CDN：将支持有系统架构演进网关SAE-GW和内容分发网络CDN的网元作为所述RAN CDN，其中，所述CDN和所述SAE-GW通过传输控制协议/网络协议TCP/IP进行交互。
在本发明实施例中，所述RAN CDN的网络功能包括：SAE-GW所支持的网络功能、边缘CDN所支持的网络功能、透明缓存。
在本发明实施例中，根据所述APN和/或所述eNodeB标识选择RAN CDN之后，还包括：向域名系统DNS发送DNS查询请求，并接收所述DNS查询请求对应的DNS查询响应消息；从所述DNS查询响应消息获取所述RAN CDN的互联网协议IP地址；向所述IP地址对应RAN CDN发送分组数据协议PDP请求。
根据本发明的另一个实施例，还提供了一种分组数据业务的处理装置，包括：获取模块，设置为获取通用移动通信系统UMTS中接入点名APN和/或无线网络控制器RNC标识；选择模块，设置为在所述UMTS中已使能有无线接入网内容分发网络RAN CDN时，根据所述APN和/或所述RNC标识选择所述RAN CDN处理所述UMTS网络中的分组数据业务。
根据本发明的另一个实施例，还提供了一种分组数据业务的处理装置，包括：获取模块，设置为获取长期演进系统LTE中接入点名APN和/或演进基站eNodeB标识；选择模块，设置为在所述LTE中已使能有无线接入网内容分发网络RAN CDN时，根据所述APN和/或所述eNodeB标识选择所述RAN CDN处理所述LTE网络中的分组数据业务。
通过本发明实施例，采用在所述UMTS中已使能有无线接入网内容分发网络RAN CDN时，优先选择RAN CDN来处理当前UMTS系统中的分组数据业务的技术手段，解决了相关技术中，不能选择同时支持有CDN网络功能和移动网网络的网络功能的网元来处理当前系统中的分组数据业务的问题，进而扩展了UMTS的网络功能，又提供了一种处理当前分组数据业务的途径。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1为现有技术中UTRAN接入PS的结构示意图；
图2为现有技术中E-UTRAN接入EPS的结构示意图；
图3是根据本发明实施例的分组数据业务的处理系统的结构框图；
图4是根据本发明实施例的分组数据业务的处理系统的另一结构框图；
图5是根据本发明实施例的CDN与GGSN融合部署为RAN CDN的结构示意图；
图6是根据本发明实施例的RAN CDN部署在UMTS的架构图；
图7是根据本发明实施例的分组数据业务的处理方法的流程图；
图8为根据本发明实施例的分组数据业务的处理装置的结构框图；
图9是根据本发明实施例的分组数据业务的处理系统的另一结构框图a；
图10是根据本发明实施例的分组数据业务的处理系统的另一结构框图b；
图11是根据本发明实施例的CDN与SAE-GW融合部署为RAN CDN的结构示意图；
图12是根据本发明实施例的RAN CDN部署在LTE的架构图；
图13是根据本发明实施例的分组数据业务的处理方法的另一流程图；
图14为根据本发明实施例的分组数据业务的处理装置的另一结构框图；
图15根据本发明优选实施例一的UMTS场景时选择RAN CDN并提供服务的流程图；
图16为根据本发明优选实施例二的LTE场景时选择RAN CDN并提供服务的流程图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
本发明的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本发明而了解。本发明的目的和其他优点可通过在所写的说明书、权利要求书、以及附图中所特别指出的结构来实现和获得。
为了使本技术领域的人员更好地理解本发明方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分的实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
在本实施例中提供了一种分组数据业务的处理系统，图3是根据本发明实施例的分组数据业务的处理系统的结构框图，如图3所示，包括：
SGSN 300，设置为获取UMTS 30中APN和/或RNC标识，以及在上述UMTS 30中已使 能有RAN CDN功能时，根据上述APN和/或RNC标识选择RAN CDN 302处理UMTS 30中的分组数据业务。
通过本发明实施例分组数据业务的处理系统所提供的技术方案，在所述UMTS中已使能(已激活)有RAN CDN功能时，优先选择RAN CDN来处理当前UMTS系统中的分组数据业务的技术手段，解决了相关技术中，不能选择同时支持有CDN网络功能和移动网络的网元来处理当前系统中的分组数据业务的问题，进而扩展了UMTS的网络功能，又提供了一种处理当前分组数据业务的途径。
在上述UMTS中未使能有上述RAN CDN功能时，SGSN 30还设置为根据APN选择与APN对应的GGSN所指示处理上述UMTS网络中的分组数据业务，也就是说，如果网络中已使能有RAN CDN功能，那么就优先选择RAN CDN来处理当前UMTS系统中分组数据业务，如果没有使能RAN CDN功能，那么直接选择GGSN处理上述UMTS网络中的分组数据业务即可。
其中，SGSN 300还可以通过以下步骤来根据RNC标识选择RAN CDN：在上述UMTS中已使能有RAN CDN功能时，在根据所述APN确定的指定网络中，按照上述指定网络的拓扑连接关系选择与RNC连接的上述RAN CDN所对应，其中，上述RNC由上述RNC标识指示。
图4是根据本发明实施例的分组数据业务的处理系统的另一结构框图，如图4所示，上述分组数据业务的处理系统还包括：RAN CDN 302，包括：内容分发网络CDN 3020、GGSN3022，上述包含关系可以理解是为将内容分发网络实体和GGSN部署在同一网关中，当然还可以有其他方式，本发明实施例对此不作限定，其中，上述CDN与上述GGSN通过传输控制协议/网络协议TCP/IP进行交互(如图5所示)。
为了更好的实现上述分组数据业务的处理系统的功能，上述系统还包括：域名系统DNS304，与RAN CDN302连接，设置为将上述RAN CDN的互联网协议IP地址反馈至SGSN300；其中，SGSN300还设置为向上述IP地址对应RAN CDN发送分组数据协议PDP请求，上述PDP请求用于向上述RAN CDN请求处理上述RAN CDN接收到的分组数据，如图6所示，图6具体描述了在UMTS系统中部署带有RAN CDN网络功能的网元后的具体情况，在该架构中，包含了HLR、SGSN、GGSN、RAN CDN、域名系统服务器(DNS Server)、服务节点(Service Node)、中心节点(Center Node)等设备，其中，DNS Server实现域名解析流程，由DNS响应(DNS Response)中携带RAN CDN的IP地址，实现用户请求的本地调度。
基于上述分组数据业务的处理系统，在本发明实施例中，还提供了一种分组数据业务的处理方法，图7是根据本发明实施例的分组数据业务的处理方法的流程图，如图7所示，包括以下步骤：
步骤S702，获取UMTS中APN和/或RNC标识；
步骤S704，在上述UMTS中已使能有RAN CDN时，根据上述APN和/或上述RNC标识选择上述RAN CDN处理上述UMTS网络中的分组数据业务。
通过上述各个步骤，在所述UMTS中已使能(已激活)有RAN CDN时，优先选择RAN CDN来处理当前UMTS系统中的分组数据业务的技术手段，解决了相关技术中，不能选择同时支持有CDN网络功能和移动网络的网元来处理当前系统中的分组数据业务的问题，进而扩展了UMTS的网络功能，又提供了一种处理当前分组数据业务的途径。
需要说明的是，在上述UMTS中未使能有上述RAN CDN时，根据上述APN选择与上述APN对应的网关通用分组无线业务支持节点GGSN所指示处理上述UMTS网络中的分组数据业务，也就是说，如果网络中已使能有RAN CDN，那么就优先选择RAN CDN来处理当前UMTS系统中分组数据业务，如果没有使能RAN CDN，那么直接选择GGSN所指示处理上述UMTS网络中的分组数据业务即可。
在本发明实施例的一个可选实现方式中，上述步骤S702可以通过以下步骤实现：在根据所述APN确定的指定网络中，按照上述指定网络的拓扑连接关系选择与RNC连接的上述RAN CDN所对应，其中，上述RNC通过上述RNC标识指示。
其中，将支持有GGSN和内容分发网络CDN的网元作为上述RAN CDN，其中，上述CDN和上述GGSN通过TCP/IP进行交互，即RAN CDN的网络功能至少包括了GGSN的网络功能和CDN的网络功能，更具体地，可以体现为GGSN所支持的网络功能、边缘CDN所支持、透明缓存。
在本发明实施例中，在执行了步骤S704的技术方案之后，还包括：向DNS发送DNS查询请求，并接收上述DNS查询请求对应的DNS查询响应消息；从上述DNS查询响应消息获取上述RAN CDN的互联网协议IP地址；向上述IP地址对应RAN CDN发送分组数据协议PDP请求，其中，上述PDP请求用于向上述RAN CDN请求处理上述RAN CDN接收到的分组数据。
需要说明的是，对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本发明并不受所描述的动作顺序的限制，因为依据本发明，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本发明所必需的。
在本实施例中还提供了一种分组数据业务的处理装置，应用于SGSN，用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述，下面对该装置中涉及到的模块进行说明。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。图8为根据本发明实施例的分组数据业务的处理装置的结构框图。如图8所示，该装置包括：
获取模块80，设置为获取UMTS中APN和/或RNC标识；
选择模块82，与获取模块80连接，设置为在上述UMTS中已使能有无线接入网内容分发网络RAN CDN时，根据上述APN和/或上述RNC标识选择上述RAN CDN处理上述UMTS网络中的分组数据业务。
通过上述各个模块的综合作用，在所述UMTS中已使能(已激活)有RAN CDN时，优先选择RAN CDN来处理当前UMTS系统中的分组数据业务的技术手段，解决了相关技术中，不能选择同时支持有CDN网络功能和移动网网络的网元来处理当前系统中的分组数据业务的问题，进而扩展了UMTS，又提供了一种处理当前分组数据业务的途径。
在本实施例中还提供了一种分组数据业务的处理系统，图9是根据本发明实施例的分组数据业务的处理系统的另一结构框图a，如图9所示，包括：
移动性管理实体MME 900，设置为获取LTE 90中APN和/或eNodeB标识，以及在上述LTE中已使能RAN CDN时，根据上述APN和/或上述eNodeB标识选择上述RAN CDN 902处理上述LTE网络中的分组数据业务。
通过本发明实施例分组数据业务的处理系统所提供的技术方案，在所述LTE中已使能(已激活)有RAN CDN时，优先选择RAN CDN来处理当前LTE系统中的分组数据业务的技术手段，解决了相关技术中，不能选择同时支持有CDN网络功能和移动网络的网元来处理当前系统中的分组数据业务的问题，进而扩展了LTE，又提供了一种处理当前分组数据业务的途径。
在LTE中未使能有上述RAN CDN功能时，MME900，还设置为根据上述APN选择与上述APN对应的系统架构演进网关SAE-GW处理上述LTE网络中的分组数据业务，进一步地，MME 900，还设置为在上述LTE中已使能有上述RAN CDN时，在根据所述APN确定的指定网络中，按照上述指定网络的拓扑连接关系选择与由eNodeB连接的上述RAN CDN所对应，其中，上述eNodeB通过上述eNodeB标识指示。
可选地，图10是根据本发明实施例的分组数据业务的处理系统的另一结构框图b，上述系统还包括，RAN CDN 902，包括：内容分发网络CDN 9020、SAE-GW 9022，其中，上述CDN与上述SAE-GW通过TCP/IP进行交互(如图11所示)。
在本发明实施中，上述系统还包括：域名系统DNS 904，与上述RAN CDN连接，设置为将上述RAN CDN的互联网协议IP地址反馈至上述MME；其中，上述MME还设置为向上述IP地址对应RAN CDN发送分组数据协议PDP请求，上述PDP请求用于向上述RAN CDN请求处理上述RAN CDN接收到的分组数据，如图12所示，具体描述了RAN CDN部署在LTE的架构，在该架构中，包含了HSS、MME、S-GW、P-GW、RAN CDN、DNS Server、Service Node、Center Node等设备，其中，DNS Server实现域名解析流程，由DNS响应(DNS Response)中携带RAN CDN的IP地址，实现用户请求的本地调度。
基于上述分组数据业务的处理系统，在本发明实施例中，还提供了一种分组数据业务的处理方法，图13是根据本发明实施例的分组数据业务的处理方法的另一流程图，包括以下步 骤：
步骤S1302，获取LTE中APN和/或eNodeB标识；
步骤S1304，在上述LTE中已使能有RAN CDN功能时，根据上述APN和/或上述eNodeB标识选择上述RAN CDN处理上述LTE网络中的分组数据业务。
通过上述各个步骤，在所述LTE中已使能(已激活)有RAN CDN功能时，优先选择RAN CDN来处理当前LTE系统中的分组数据业务的技术手段，解决了相关技术中，不能选择同时支持有CDN网络功能和移动网网络的网元来处理当前系统中的分组数据业务的问题，进而扩展了LTE，又提供了一种处理当前分组数据业务的途径。
在LTE中未使能有上述RAN CDN功能时，根据上述APN选择与上述APN对应的系统架构演进网关SAE-GW。
可选地，上述步骤S1304可以通过以下技术方案实现：在上述LTE中已使能有上述RAN CDN功能时，在根据所述APN确定的指定网络中，按照上述指定网络的拓扑连接关系选择与eNodeB连接的上述RAN CDN所对应，其中，上述eNodeB通过上述eNodeB标识指示。
其中，通过以下方式得到上述RAN CDN：将支持有SAE-GW和CDN的网元作为上述RAN CDN，其中，上述CDN和上述SAE-GW通过传输控制协议/网络协议TCP/IP进行交互，RAN CDN包括：SAE-GW所支持、边缘CDN所支持、透明缓存。
进一步地，在执行步骤S1304的技术方案之后，还可以执行以下过程：向域名系统DNS发送DNS查询请求，并接收上述DNS查询请求对应的DNS查询响应消息；从上述DNS查询响应消息获取上述RAN CDN的互联网协议IP地址；向上述IP地址对应RAN CDN发送分组数据协议PDP请求。
需要说明的是，对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本发明并不受所描述的动作顺序的限制，因为依据本发明，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本发明所必需的。
在本实施例中还提供了一种分组数据业务的处理装置，应用于MME，用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述，下面对该装置中涉及到的模块进行说明。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。图14为根据本发明实施例的分组数据业务的处理装置的另一结构框图。如图14所示，该装置包括：
获取模块140，设置为获取LTE中APN和/或eNodeB标识；
选择模块142，与获取模块142连接，设置为在上述LTE中已使能有无线接入网内容分发网络RAN CDN时，根据上述APN和/或上述eNodeB标识选择上述RAN CDN处理上述LTE 网络中的分组数据业务。
通过上述各个模块的综合作用，在所述LTE中已使能(已激活)有RAN CDN功能时，优先选择RAN CDN来处理当前LTE系统中的分组数据业务的技术手段，解决了相关技术中，不能选择同时支持有CDN网络功能和移动网网络的网元来处理当前系统中的分组数据业务的问题，进而扩展了LTE，又提供了一种处理当前分组数据业务的途径。
为了更好的理解上述分组数据业务的处理流程，以下结合优选实施例一和优选实施例二进行说明，但不用于限定本发明实施例的保护方案。
优选实施例1
以CDN与GGSN融合部署为例，描述UMTS场景时选择RAN CDN并提供服务的方法，如图15所示：
步骤1500，UE向SGSN发送附着请求(Attach Request)消息，消息中携带APN等参数，在本发明中APN为激活RAN CDN功能的APN。
步骤1502，SGSN向HLR发送位置更新请求(Update Location Request)消息。
步骤1504，HLR向SGSN回答位置更新响应(Update Location Accept)消息。
步骤1506，SGSN向UE回答附着响应(Attach Accept)消息，附着到3G网络。
步骤1508，UE向SGSN发送激活PDP请求(Active PDP Request)消息。
步骤1510，SGSN向DNS Server发送DNS查询请求(DNS Query Request)消息。
在本发明优选实施例中，如果APN为激活RAN CDN功能的APN，则SGSN在DNS查询请求消息中，以RNC ID扩展APN域名，RNC ID示例为internet.rnc0001.mnc021.mcc206.gprs，其中rnc0001为UE所在覆盖区域的RNC。
在本发明优选实施例中，如果APN为不激活RAN CDN功能的APN，以黑莓为例，则SGSN在DNS查询请求消息中，继续携带该原有的APN，如blackberry.mnc021.mcc206.gprs。
步骤1512，DNS Server向SGSN回答DNS查询响应(DNS Query Response)消息，在本发明中，该DNS查询响应消息携带RAN CDN地址。
在本发明优选实施例中，DNS Server需要修改DNS解析文件，增加一行RNC ID和RAN CDN的IP地址的对应关系的配置记录。举例如下：
internet.rnc0001.mnc021.mcc206.gprs IN A 10.5.155.28//For RAN-CDN APN；
blackberry.mnc021.mcc206.gprs IN A 12.5.155.28//For Non RAN-CDN APN；
步骤1514，SGSN从DNS查询响应消息中获得RAN CDN地址，向选定的RAN CDN发送创建PDP请求(Create PDP Request)消息。
步骤1516，RAN CDN向SGSN回答创建PDP响应(Create PDP Response)消息。
步骤1518，SGSN在SGSN和RNC之间建立无线接入承载(Radio Access Bearer，简称为RAB)，在此过程中，SGSN将RAN CDN的IP地址以及隧道端点标识符(Tunnel Endpoint Identification，简称为TEID)传送给RNC。然后，RNC和RAN CDN之间的GPRS隧道协议用户平面(GPRS Tunnel Protocol for the User plane，简称为GTP-U)隧道就建立成功。SGSN向UE返回激活PDP响应消息。
步骤1520，UE经过RNC向RAN CDN发送数据分组。RAN CDN处理所有数据分组，但仅缓存目的端口为80、8080、8088或21的分组数据，以便后续直接提供服务给用户。RAN CDN支持GPRS隧道协议控制平面(GPRS Tunnel Protocol for the Control plane，简称为GTP-C)、GTP-U相关的所有功能。
并且，RAN CDN支持所有服务节点(Service Node)支持的功能。
步骤1522，当UE发起去激活PDP流程时，SGSN向RAN CDN发送删除PDP请求(Delete PDP Request)消息。
步骤1524，RAN CDN向SGSN回答删除PDP响应(Delete PDP Response)消息。
优选实施例2
以CDN与SAE-GW(包含S-GW和P-GW)融合部署为例，描述LTE场景时选择RAN CDN并提供服务的方法，如图16所示：
步骤1600，UE向MME发送附着请求(Attach Request)/PDN连接请求(PDN Connection Request)消息，消息中携带APN等参数，在本发明中APN为激活RAN CDN功能的APN。
步骤1602，MME向DNS Server发送DNS查询请求(DNS Query Request)消息。
在本发明优选实施例中，如果APN为激活RAN CDN功能的APN，则SGSN在DNS查询请求消息中，以eNodeB ID扩展APN域名，eNodeB ID示例为internet.enb0001.epc.mnc021.mcc206.3gppnetwork.org。其中enb0001为UE所在覆盖区域的eNodeB。
在本发明中，如果APN为不激活RAN CDN功能的APN，以黑莓为例，则MME在DNS查询请求消息中，继续携带该原有的APN，如blackberry.epc.mnc021.mcc206.3gppnetwork.org。
步骤1604，DNS Server向MME回答DNS查询响应(DNS Query Response)消息，在本发明中，该DNS查询响应消息携带RAN CDN地址。
在本发明中，DNS Server需要修改DNS解析文件，增加一行eNodeB ID和RAN CDN的IP地址的对应关系的配置记录。举例如下：
internet.enb0001.epc.mnc021.mcc206.3gppnetwork.org IN A 10.5.155.29//For  RAN-CDN APN
blackberry.epc.mnc021.mcc206.3gppnetwork.org IN A 12.5.155.29//For Non RAN-CDN APN
步骤1606，MME从DNS查询响应消息中获得RAN CDN地址，向选定的RAN CDN发送创建会话请求(Create Session Request)消息。
步骤1608，RAN CDN向MME回答创建会话响应(Create Session Response)消息。
步骤1610，MME在MME和eNodeB之间建立承载，在此过程中，MME将RAN CDN的IP地址以及隧道端点标识符(Tunnel Endpoint Identification，简称为TEID)传送给eNodeB。然后，eNodeB和RAN CDN之间的GPRS隧道协议用户平面(GPRS Tunnel Protocol for the User plane，简称为GTP-U)隧道就建立成功。MME向UE返回激活响应(Attach Accept)/PDN连接响应(PDN Connection Accept)消息。
步骤1612，UE经过eNodeB向RAN CDN发送数据分组。RAN CDN处理所有数据分组，但仅缓存目的端口为80、8080、8088或21的分组数据，以便后续直接提供服务给用户。RAN CDN支持GPRS隧道协议控制平面(GPRS Tunnel Protocol for the Control plane，简称为GTP-C)、GTP-U相关的所有功能。
并且，RAN CDN支持所有服务节点(Service Node)支持的功能。
步骤1614，当UE发起去附着或断开PDN连接的流程时，MME向RAN CDN发送删除会话请求(Delete Session Request)消息。
步骤1616，RAN CDN向MME回答删除会话响应(Delete Session Response)消息。
综上所述，本发明实施例达到了以下技术效果：解决了相关技术中，不能选择同时支持有CDN网络功能和移动网络的网元来处理当前系统中的分组数据业务的问题，进而扩展了LTE的网络功能，又提供了一种处理当前分组数据业务的途径。
在另外一个实施例中，还提供了一种软件，该软件用于执行上述实施例及优选实施方式中描述的技术方案。
在另外一个实施例中，还提供了一种存储介质，该存储介质中存储有上述软件，该存储介质包括但不限于：光盘、软盘、硬盘、可擦写存储器等。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的对象在适当情况下可以互换，以便这里描述的本发明的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
工业实用性
本发明提供的上述技术方案，可以应用于分组数据业务的处理过程中，采用在所述UMTS中已使能有无线接入网内容分发网络RAN CDN时，优先选择RAN CDN来处理当前UMTS、LTE系统中的分组数据业务并进行加速的技术手段，解决了相关技术中，不能选择同时支持有CDN网络功能和移动网网络的网络功能的网元来处理当前系统中的分组数据业务加速的问题，进而扩展了UMTS系统、LTE系统、CDN的网络功能，又提供了一种处理当前分组数据业务加速的途径。

Claims (24)

  1. 一种分组数据业务的处理系统，包括：
    服务通用分组无线业务支持节点SGSN，设置为获取通用移动通信系统UMTS中接入点名APN和/或无线网络控制器RNC标识，以及在所述UMTS中已使能有无线接入网内容分发网络RAN CDN，根据所述APN和/或所述RNC标识选择所述RAN CDN处理所述UMTS网络中的分组数据业务。
  2. 根据权利要求1所述的系统，其中，所述SGSN，还设置为在所述UMTS中未使能有所述RAN CDN时，根据所述APN选择与所述APN对应的网关通用分组无线业务支持节点GGSN处理所述UMTS网络中的分组数据业务。
  3. 根据权利要求1所述的系统，其中，所述SGSN还设置为通过以下步骤来根据所述APN和/或所述RNC标识选择所述RAN CDN：在所述UMTS中已使能有所述RAN CDN时，在根据所述APN确定的指定网络中，按照所述指定网络的拓扑连接关系选择与RNC连接的所述RAN CDN，其中，所述RNC由所述RNC标识指示。
  4. 根据权利要求1所述的系统，其中，还包括：
    所述RAN CDN，包括：内容分发网络CDN、GGSN，其中，所述CDN与所述GGSN通过传输控制协议/网络协议TCP/IP进行交互。
  5. 根据权利要求1所述的系统，其中，所述系统还包括：
    域名系统DNS，与所述RAN CDN连接，设置为将所述RAN CDN的互联网协议IP地址反馈至所述SGSN；
    其中，所述SGSN还设置为向所述IP地址对应RAN CDN发送分组数据协议PDP请求，所述PDP请求用于向所述RAN CDN请求处理所述RAN CDN接收到的分组数据。
  6. 一种分组数据业务的处理系统，包括：
    移动性管理实体MME，设置为获取长期演进系统LTE中接入点名APN和/或演进基站eNodeB标识，以及在所述LTE中已使能无线接入网内容分发网络RAN CDN时，根据所述APN和/或所述eNodeB标识选择所述RAN CDN处理所述LTE网络中的分组数据业务。
  7. 根据权利要求6所述的系统，其中，所述MME，还设置为在所述LTE中未使能有所述RAN CDN时，根据所述APN选择与所述APN对应的系统架构演进网关SAE-GW处理所述LTE网络中的分组数据业务。
  8. 根据权利要求6所述的系统，其中，所述MME，还设置为在所述LTE中已使能有所述RAN CDN时，在根据所述APN确定的指定网络中，按照所述指定网络的拓扑连接关系选择与eNodeB连接的所述RAN CDN，其中，所述eNodeB通过所述eNodeB标识指示。
  9. 根据权利要求6所述的系统，其中，还包括：
    所述RAN CDN，包括：内容分发网络CDN、SAE-GW，其中，所述CDN与所述SAE-GW通过传输控制协议/网络协议TCP/IP进行交互。
  10. 根据权利要求6所述的系统，其中，所述系统还包括：
    域名系统DNS，与所述RAN CDN连接，设置为将所述RAN CDN的互联网协议IP地址反馈至所述MME；
    其中，所述MME还设置为向所述IP地址对应RAN CDN发送分组数据协议PDP请求，所述PDP请求用于向所述RAN CDN请求处理所述RAN CDN接收到的分组数据。
  11. 一种分组数据业务的处理方法，包括：
    获取通用移动通信系统UMTS中接入点名APN和/或无线网络控制器RNC标识；
    在所述UMTS中已使能有无线接入网内容分发网络RAN CDN时，根据所述APN和/或所述RNC标识选择所述RAN CDN处理所述UMTS网络中的分组数据业务。
  12. 根据权利要求11所述的方法，其中，所述方法还包括：
    在所述UMTS中未使能有所述RAN CDN时，根据所述APN选择与所述APN对应的网关通用分组无线业务支持节点GGSN处理所述UMTS网络中的分组数据业务。
  13. 根据权利要求11所述的方法，其中，根据所述APN和/或所述RNC标识选择所述RAN CDN，包括：
    在根据所述APN确定的指定网络中，按照所述指定网络的拓扑连接关系选择与RNC连接的所述RAN CDN，其中，所述RNC通过所述RNC标识指示。
  14. 根据权利要求11所述的方法，其中，通过以下方式得到所述RAN CDN：
    将支持有GGSN和内容分发网络CDN的网元作为所述RAN CDN，其中，所述CDN和所述GGSN通过传输控制协议/网络协议TCP/IP进行交互。
  15. 根据权利要求11所述的方法，其中，所述RAN CDN的网络功能包括：GGSN所支持的网络功能、边缘CDN所支持的网络功能、透明缓存。
  16. 根据权利要求11所述的方法，其中，根据所述APN和/或所述RNC标识选择RAN CDN之后，还包括：
    向域名系统DNS发送DNS查询请求，并接收所述DNS查询请求对应的DNS查询响应消息；
    从所述DNS查询响应消息获取所述RAN CDN的互联网协议IP地址；
    向所述IP地址对应RAN CDN发送分组数据协议PDP请求，其中，所述PDP请求用于向所述RAN CDN请求处理所述RAN CDN接收到的分组数据。
  17. 一种分组数据业务的处理方法，包括：
    获取长期演进系统LTE中接入点名APN和/或演进基站eNodeB标识；
    在所述LTE中已使能有无线接入网内容分发网络RAN CDN时，根据所述APN和/或所述eNodeB标识选择所述RAN CDN处理所述LTE网络中的分组数据业务。
  18. 根据权利要求17所述的方法，其中，所述方法还包括：
    在所述LTE中未使能有所述RAN CDN时，根据所述APN选择与所述APN对应的系统架构演进网关SAE-GW。
  19. 根据权利要求17所述的方法，其中，根据所述APN和/或所述eNodeB标识选择RAN CDN，包括：
    在所述LTE中已使能有所述RAN CDN时，在根据所述APN确定的指定网络中，按照所述指定网络的拓扑连接关系选择与eNodeB连接的所述RAN CDN，其中，所述eNodeB通过所述eNodeB标识指示。
  20. 根据权利要求19所述的方法，其中，通过以下方式得到所述RAN CDN：
    将支持有系统架构演进网关SAE-GW和内容分发网络CDN的网元作为所述RAN CDN，其中，所述CDN和所述SAE-GW通过传输控制协议/网络协议TCP/IP进行交互。
  21. 根据权利要求17所述的方法，其中，所述RAN CDN的网络功能包括：SAE-GW所支持的网络功能、边缘CDN所支持的网络功能、透明缓存。
  22. 根据权利要求17所述的方法，其中，根据所述APN和/或所述eNodeB标识选择RAN CDN之后，还包括：
    向域名系统DNS发送DNS查询请求，并接收所述DNS查询请求对应的DNS查询响应消息；
    从所述DNS查询响应消息获取所述RAN CDN的互联网协议IP地址；
    向所述IP地址对应RAN CDN发送分组数据协议PDP请求。
  23. 一种分组数据业务的处理装置，包括：
    获取模块，设置为获取通用移动通信系统UMTS中接入点名APN和/或无线网络控制器RNC标识；
    选择模块，设置为在所述UMTS中已使能有无线接入网内容分发网络RAN CDN时，根据所述APN和/或所述RNC标识选择所述RAN CDN处理所述UMTS网络中的分组数据业务。
  24. 一种分组数据业务的处理装置，包括：
    获取模块，设置为获取长期演进系统LTE中接入点名APN和/或演进基站eNodeB标识；
    选择模块，设置为在所述LTE中已使能有无线接入网内容分发网络RAN CDN时，根据所述APN和/或所述eNodeB标识选择所述RAN CDN处理所述LTE网络中的分组数据业务。
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