WO2013104237A1 - 内容分发的方法、装置及接入网设备 - Google Patents

内容分发的方法、装置及接入网设备 Download PDF

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Publication number
WO2013104237A1
WO2013104237A1 PCT/CN2012/086910 CN2012086910W WO2013104237A1 WO 2013104237 A1 WO2013104237 A1 WO 2013104237A1 CN 2012086910 W CN2012086910 W CN 2012086910W WO 2013104237 A1 WO2013104237 A1 WO 2013104237A1
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WO
WIPO (PCT)
Prior art keywords
access network
network device
user equipment
cache server
content distribution
Prior art date
Application number
PCT/CN2012/086910
Other languages
English (en)
French (fr)
Inventor
雍文远
李欣
刘启明
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP12865080.1A priority Critical patent/EP2775690A4/en
Publication of WO2013104237A1 publication Critical patent/WO2013104237A1/zh
Priority to US14/296,075 priority patent/US20140310339A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/56Provisioning of proxy services
    • H04L67/568Storing data temporarily at an intermediate stage, e.g. caching
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/56Provisioning of proxy services
    • H04L67/568Storing data temporarily at an intermediate stage, e.g. caching
    • H04L67/5682Policies or rules for updating, deleting or replacing the stored data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, an apparatus, and an access network device for content distribution.
  • the Content Delivery Network is an application layer network architecture proposed to solve the current network congestion and broadband bottlenecks.
  • the content distribution network can quickly push user access content to the edge of the network, so that users' requests can be quickly responded to nearby, which not only greatly reduces the load on the network, but also reduces the probability of network congestion and shortens the request delay.
  • a Cache server can be employed in the content distribution network. For example, the service request of the user equipment (User Equipment, UE) is first sent to the cache server in the access network. If the service data requested by the user equipment is stored in the cache server in the access network, the access network may be accessed by the access network.
  • User Equipment User Equipment
  • the cache server in the vicinity provides the user equipment with the requested service data through the access network, thereby saving the bandwidth of the network and the system resources of the remote content server, and shortening the request delay; if the cache server in the access network does not have The service data requested by the user equipment is stored, and the cache server in the access network can obtain the requested service data from the content server and forward the data to the user equipment, and can simultaneously cache a copy locally, and the other user equipment requests the service again.
  • the data can be sent to other requested user equipment through the access network.
  • the cache server in the access network provides the user equipment with the requested service data through the access network.
  • the core network device cannot control the service data requested by the management user equipment, and cannot perform functions such as charging or monitoring on the user equipment.
  • the embodiment of the invention provides a method, a device and an access network device for content distribution, so that the core network device can control the service data requested by the user equipment.
  • a method of content distribution including:
  • the cache server in the access network receives a service request sent by the user equipment, where the service request includes an address of a content server where the service data requested by the user equipment is located;
  • the cache server in the access network If the cache server in the access network stores the service data requested by the user equipment, the cache server in the access network sends the service data requested by the stored user equipment to the network through the access network device. Determining, by the user equipment, an address of the content server in the received service request as an address of a cache server in the access network, and modifying the modified service request by the access network device Send to the core network device;
  • the cache server in the access network receives the route that the core network device routes to the cache server in the access network according to the address of the cache server in the access network carried in the modified service request.
  • Modified business request
  • the cache server in the access network sends the service data requested by the stored user equipment to the cache server in the access network through the Internet, the core network device, and the access network device, where the The cache server in the network discards the service data.
  • a content distribution apparatus located in an access network, comprising:
  • a receiving unit configured to receive a service request sent by the user equipment, where the service request includes an address of a content server where the service data requested by the user equipment is located;
  • a cache unit for storing business data
  • a sending unit configured to send the service data requested by the user equipment stored in the cache unit to the user equipment by using an access network device, if the service data requested by the user equipment is stored in the cache unit, and The address of the content server in the service request received by the receiving unit is modified to an address of the device for content distribution, and the modified service request is sent to the core network device by using the access network device;
  • the receiving unit is further configured to receive, by the core network device, an address of the device that is distributed according to the content carried in the modified service request, and route the message to the modified service request of the content distribution device;
  • the sending unit is further configured to send, by using the Internet, the core network device, the access network device, the service data requested by the user equipment stored by the cache unit to the device for content distribution; And a processing unit, configured to discard the service data sent by the sending unit.
  • an access network device including the aforementioned content distribution device.
  • the service data requested by the user equipment is stored in the cache server in the access network
  • the service data requested by the stored user equipment is sent to the user through the access network device.
  • the device and modifying an address of the content server in the received service request to an address of a cache server in the access network, and sending the address to the core network device, and receiving the core network device to the cache server in the access network
  • the stored service data is sent to the cache server in the access network through the Internet, the core network device, and the access network device, and the service data is discarded.
  • the core network device can manage and control the service data requested by the user equipment to implement charging for the user equipment, so that the core network device can manage and control the service data of the user equipment by using the access network device to provide the service data to the user equipment. Or monitor and other functions.
  • FIG. 1 is a flow chart of a first embodiment of a method for content distribution of the present invention
  • FIG. 2 is a flow chart of a second embodiment of a method for content distribution of the present invention.
  • FIG. 3 is a flow chart of a third embodiment of a method for content distribution of the present invention.
  • FIG. 4 is a schematic structural diagram of an embodiment of an apparatus for content distribution according to the present invention.
  • FIG. 5 is a schematic structural diagram of an embodiment of a transmitting unit in an apparatus for content distribution according to the present invention
  • FIG. 6 is a schematic structural diagram of an embodiment of another transmitting unit in the apparatus for content distribution according to the present invention
  • FIG. 7 is a schematic structural diagram of an embodiment of an access network device according to the present invention.
  • FIG. 1 is a flowchart of a first embodiment of a method for content distribution according to the present invention, and the method of the embodiment includes:
  • the cache server in the access network receives a service request sent by the user equipment, where the service request includes an address of a content server where the service data requested by the user equipment is located.
  • the service request may be a request for a web service, for example, accessing a webpage, audio and video, and the like, and may be other types of services.
  • the content server for example, may be located in the Internet (Internet) and stores service data that the user wants to access.
  • the address of the content server may be a public address (B).
  • the cache server in the access network stores the service data requested by the user equipment, the cache server in the access network sends the service data requested by the stored user equipment by using the access network device. Giving the user equipment, and modifying an address of the content server in the received service request to an address of a cache server in the access network, and modifying the modified service request by using an access network device Send to the core network device.
  • a part of the service data may be stored in the cache server in the access network, and if the stored service data includes the service data requested by the user equipment, the stored The service data requested by the user equipment is sent to the user equipment, and the address of the content server included in the received service request is modified to an address of a cache server in the access network, and the modified The service request is sent to the core network device by the access network device.
  • the address of the cache server in the access network may be, for example, a public address.
  • a service request response may be sent to the user equipment.
  • the cache server in the access network receives the address of the cache server in the access network carried by the core network device according to the modified service request, and routes the cache server to the cache server in the access network.
  • the modified business request The modified business request.
  • the core network device may modify the address of the cache server in the access network carried in the modified service request.
  • the service request is routed to the cache server in the access network.
  • the routing process for example, may be routed through the Internet to a cache server in the access network.
  • the cache server in the access network receives the modified service request that is sent by the core network device to the cache server in the access network
  • the cache server in the access network further The service request response may be sent to the cache server in the access network by using the Internet, the core network device, and the access network device.
  • the cache server in the access network may copy the service request response sent to the user equipment, and use the Internet, the core.
  • the network device, the access network device sends the copied service request response to a cache server in the access network.
  • the cache server in the access network passes through the Internet, the core network device, and the connection
  • the network access device sends the service data requested by the stored user equipment to a cache server in the access network, and the cache server in the access network discards the service data.
  • the cache server in the access network sends the service data requested by the stored user equipment to the cache server in the access network through the Internet, the core network device, and the access network device. That is, the cache server in the access network sequentially sends the service data to the cache server in the access network through the Internet, the core network device, and the access network device.
  • the storage may be performed by a connection between a cache server in the access network, the Internet, the core network device, the access network device, and a cache server in the access network.
  • the service data requested by the user equipment is sent to the cache server in the access network.
  • the connection may be a Transmission Control Protocol (TCP) connection or a customized connection. Not limited.
  • TCP Transmission Control Protocol
  • the service data sent to the user equipment may be copied by the cache server in the access network, and the copied service data may be sent through the Internet, the core network device, and the access network device.
  • the cache server in the access network there is no need to establish a connection at this time.
  • the server in the access network copies the service request response sent to the user equipment, and the copy is performed by using the Internet, the core network device, and the access network device
  • the service request response is sent to the cache server in the access network, and the cache server in the access network discards the service request response.
  • the cache server in the access network may also discard the modified service request from the received route.
  • the embodiments of the present invention can be applied to various communication networks, for example, can be applied to Global System of Mobile communication (GSM), Universal Mobile Telecommunications System (UMTS) S long-term evolution (Long Term) Evolution, LTE) systems, or networks such as Wireless Local Area Networks (WLANs).
  • GSM Global System of Mobile communication
  • UMTS Universal Mobile Telecommunications System
  • LTE Long-term evolution
  • WLANs Wireless Local Area Networks
  • the cache server in the access network may be set independently or in the access network device.
  • the cache server in the access network may be set independently or may be located in the UMTS network.
  • the access network device for example, the Radio Network Controller (RNC), the corresponding core network device, for example, may be a Gateway GPRS Support Node (GGSN) S broadband remote access server (Broadband) Remote Access Server (BRAS) or other devices with data routing and control management functions are not mentioned here.
  • RNC Radio Network Controller
  • GGSN Gateway GPRS Support Node
  • Broadband Broadband Remote Access Server
  • BRAS Remote Access Server
  • the cache server in the access network stores user settings
  • the service data requested by the user equipment is sent to the user equipment by using the stored service data of the user equipment, and the address of the content server in the received service request is modified into a cache server in the access network.
  • the address is sent to the core network device, and after receiving the modified service request that the core network device routes to the cache server in the access network, through the Internet, the core network device, and the access network
  • the device sends the stored service data to a cache server in the access network, and discards the service data, so that when the cache server in the access network provides service data to the user equipment through the access network device,
  • the core network device can implement management and control of the service data requested by the user equipment, so as to implement functions such as charging or monitoring the user equipment.
  • FIG. 2 is a flow chart of a second embodiment of a method of content distribution of the present invention.
  • the method of this embodiment includes:
  • the cache server in the access network receives the service request sent by the user equipment.
  • the cache server in the access network may receive a service request sent by the user equipment through the access network device.
  • the service request may include an address of a content server where the service data requested by the user equipment is located.
  • the service request may be, for example, a request for a web service, such as a webpage, an audio and video, or the like, and may be other types of services, which are not limited by the embodiment of the present invention;
  • the content server may, for example, Located in the Internet, the service data that the user wants to access is stored, and the address of the content server may be a public address.
  • the cache server in the access network detects whether it stores the service data requested by the user equipment, and if yes, performs S202; if not, the service request may be sent to the access network device to a core network device, the core network device routing the service request to the content server via the Internet, and the content server provides a request for the user equipment by using the Internet, the core network device, and the access network device Business data.
  • the cache server in the access network modifies an address of a content server included in the service request to an address of a cache server in the access network.
  • the address of the content server may be modified to a public address of a cache server in the access network.
  • S203-204 The cache server in the access network sends the modified service request to the core network device by using the access network device.
  • the cache server in the access network may send the modified service request to the access network device (S203, the access network device, and then send the received modified service request to the core a network device (S204), for example, between the access network device and the core network device The interface is sent.
  • the core network device routes the modified service request to a cache server in the access network. Specifically, for example, the core network device may route the modified service request to the access through the Internet according to the address of the cache server in the access network carried in the modified service request.
  • the cache server in the network may route the modified service request to the access through the Internet according to the address of the cache server in the access network carried in the modified service request.
  • S208-S210 The cache server in the access network replicates the service request response sent to the user equipment, and sends the copied service request by using the Internet, the core network device, and the access network device. The response is sent to a cache server in the access network.
  • the cache server in the access network may send the copied service request response to the core network device, for example, the cache server in the access network may send the solution to the core network device by using the Internet.
  • the copied service request response (S208)b after receiving the copied service request response, the core network device may send the copied service request response to the access network device (S209, the access network device) Sending the copied service request response to the cache server in the access network (S210)b
  • the cache server in the access network discards the copied service request response.
  • steps S207 to S211 are optional steps.
  • the cache server in the access network sends the stored service data to the user equipment by using the access network device.
  • S213-S215 The cache server in the access network copies the service data sent to the user equipment, and sends the service data to the user equipment through the Internet, the core network device, and the access network device.
  • the cache server sends the copied business data.
  • the cache server in the access network sends the copied service data to the core network device via the Internet (S213).
  • the core network device After receiving the copied service data, the core network device sends the copied service data to the access network device (S214).
  • the access network device sends the access network device to a cache server in the access network.
  • the copied service data (S215).
  • the cache server in the access network discards the copied service data.
  • the embodiments of the present invention can be applied to various communication networks, for example, can be applied to Global System of Mobile communication (GSM), Universal Mobile Telecommunications System (UMTS) S long-term evolution (Long Term) Evolution, LTE) systems, or networks such as Wireless Local Area Networks (WLANs).
  • GSM Global System of Mobile communication
  • UMTS Universal Mobile Telecommunications System
  • LTE Long-term evolution
  • WLANs Wireless Local Area Networks
  • the cache server in the access network may be set independently or in the access network device.
  • the cache server in the access network may be set independently or may be located in the UMTS network.
  • the access network device for example, the Radio Network Controller (RNC), the corresponding core network device, for example, may be a Gateway GPRS Support Node (GGSN) S broadband remote access server (Broadband) Remote Access Server (BRAS) or other devices with data routing and control management functions are not mentioned here.
  • RNC Radio Network Controller
  • GGSN Gateway GPRS Support Node
  • Broadband Broadband Remote Access Server
  • BRAS Remote Access Server
  • the service data requested by the user equipment is stored in the cache server in the access network
  • the service data requested by the stored user equipment is sent to the user through the access network device.
  • the device and modifying an address of the content server in the received service request to an address of a cache server in the access network, and sending the address to the core network device, and receiving the core network device to the cache server in the access network
  • the service data sent to the user equipment is copied, and the copied service data is sent to the access network through the Internet, the core network device, and the access network device.
  • the cache server in the network and discarding the duplicated service data, so that when the cache server in the access network provides service data to the user equipment through the access network device, the core network device can implement the service requested by the user equipment.
  • Data is managed and controlled to implement functions such as billing or monitoring of user equipment.
  • FIG. 3 is a flow chart of a third embodiment of a method of content distribution of the present invention.
  • the method of this embodiment includes:
  • S300 The cache server in the access network receives the service request sent by the user equipment.
  • the cache server in the access network may receive the user equipment sent by using the access network device.
  • the service request may include an address of a content server where the service data requested by the user equipment is located.
  • the service request may be, for example, a request for a web service, such as a webpage, an audio and video, or the like, and may be other types of services, which are not limited by the embodiment of the present invention;
  • the content server may, for example, Located in the Internet, the service data that the user wants to access is stored, and the address of the content server may be a public address.
  • the cache server in the access network detects whether it stores the service data requested by the user equipment, and if yes, performs S302; if not, sends the service request to the access network device to a core network device, the core network device routing the service request to the content server via the Internet, and the content server provides a request for the user equipment by using the Internet, the core network device, and the access network device Business data.
  • the cache server in the access network sends a service request response to the user equipment.
  • the cache server in the access network may send a service request response to the user equipment through the access network device.
  • the cache server in the access network sends service data to the user equipment.
  • the cache server in the access network may send service data to the user equipment through the access network device, so that the requested service data can be directly provided from the access network to the user equipment without using
  • the core network device accesses the content server on the Internet, thereby saving the bandwidth of the network and the system resources of the content server, and shortening the request delay.
  • the cache server in the access network modifies an address of the content server included in the received service request to an address of a cache server in the access network. .
  • the address of the content server may be modified to a public address of a cache server in the access network.
  • S305-306 The cache server in the access network sends the modified service request to the core network device by using the access network device.
  • the cache server in the access network may send the modified service request to the access network device.
  • the access network device sends the received modified service request to the core.
  • the network device (S306), for example, may be sent through an interface between the access network device and the core network device.
  • the core network device routes the modified service request to a cache server in the access network.
  • the core network device may be according to the modified service request. Carrying the address of the cache server in the access network, and routing the modified service request to the cache server in the access network via the Internet.
  • S308-S310 The cache server in the access network sends a service request response to the cache server in the access network by using the Internet, the core network device, and the access network device.
  • the cache server in the access network may send the service request response to the core network device, for example, the cache server in the access network may send the service to the core network device by using the Internet.
  • Requesting a response (S308)b after receiving the service request response, the core network device may send the service request response to the access network device (S309)b, the access network device to the access network
  • the cache server in the sending the service request response (S310)b S308-S310, the service request response may be through the cache server in the access network, the Internet, the core network device, the access network
  • the connection between the device and the cache server in the access network is sent.
  • the cache server in the access network sends the user equipment stored in the cache server in the access network to the cache server in the access network through the Internet, the core network device, and the access network device.
  • the requested service data, the cache server in the access network discards the received service data.
  • the cache server in the access network sends service data to the cache server in the access network through the Internet, the core network device, and the access network device, that is, in the access network.
  • the cache server sequentially sends the service data to the cache server in the access network via the Internet, the core network device, and the access network device.
  • the service data may be transmitted through a connection between a cache server in the access network, the Internet, the core network device, the access network device, and a cache server in the access network.
  • the connection may be a Transmission Control Protocol (TCP) connection or a custom connection, which is not limited in this embodiment of the present invention.
  • the embodiments of the present invention can be applied to various communication networks, for example, can be applied to Global System of Mobile communication (GSM), Universal Mobile Telecommunications System (UMTS) S long-term evolution (Long Term) Evolution, LTE) systems, or networks such as Wireless Local Area Networks (WLANs).
  • GSM Global System of Mobile communication
  • UMTS Universal Mobile Telecommunications System
  • LTE Long-term evolution
  • WLANs Wireless Local Area Networks
  • the cache server in the access network may be set independently or in the access network device.
  • the cache server in the access network may be set independently or may be located in the UMTS network.
  • An access network device for example, a radio network controller (RNC), a corresponding core network device, for example, may be a gateway GPRS support node (Gateway GPRS Support Node, GGSN) S Broadband Remote Access Server (BRAS) or other devices with data routing and control management functions are not mentioned here.
  • RNC radio network controller
  • a corresponding core network device for example, may be a gateway GPRS support node (Gateway GPRS Support Node, GGSN) S Broadband Remote Access Server (BRAS) or other devices with data routing and control management functions are not mentioned here.
  • GGSN Gateway GPRS support node
  • BRAS Broadband Remote Access Server
  • the service data requested by the user equipment is stored in the cache server in the access network
  • the service data requested by the stored user equipment is sent to the user through the access network device.
  • the device and modifying an address of the content server in the received service request to an address of a cache server in the access network, and sending the address to the core network device, and receiving the core network device to the cache server in the access network
  • the cache server in the access network sends the service data requested by the stored user equipment to the access through the Internet, the core network device, and the access network device.
  • the cache server in the network discards the received service data, so that when the cache server in the access network provides service data to the user equipment through the access network device, the core network device can implement the request for the user equipment.
  • the business data is managed and controlled to implement functions such as charging or monitoring the user equipment.
  • step S302 is optional and may be after S301.
  • step S308-S310 are also optional, and S311 can be directly executed after S307.
  • the content distribution device of this embodiment may be located in an access network, and may include: a receiving unit 41, a buffer unit 42, a sending unit 43, and a processing unit 44.
  • the receiving unit 41 is configured to receive a service request sent by the user equipment, where the service request includes an address of a content server where the service data requested by the user equipment is located.
  • the service request may be a request for a web service, for example, accessing a webpage, audio and video, and the like, and may be other types of services, which are not limited by the embodiment of the present invention; , may be located in the Internet (Internet), stored with the business data that the user wants to access, the address of the content server may be a public address (Public Address)
  • the cache unit 42 is configured to store service data.
  • the sending unit 43 is configured to: if the cache unit 42 stores the number of services requested by the user equipment According to the access network device, the service data requested by the user equipment stored in the buffer unit 42 is sent to the user equipment, and the address of the content server in the service request received by the receiving unit 41 is modified to The address of the device for content distribution, and the modified service request is sent to the core network device by the access network device.
  • the address of the content distribution device may be, for example, a public address.
  • the receiving unit 41 is further configured to receive, by the core network device, an address of the device that is distributed according to the content carried in the modified service request, and route the message to the modified service request of the content distribution device.
  • the routing process may be routed to the content distribution device over the Internet.
  • the sending unit 43 is further configured to send the service data requested by the user equipment stored by the buffer unit 42 to the content distribution device by using the Internet, the core network device, and the access network device.
  • the sending unit 32 sends the service data to the device for distributing the content through the Internet, the core network device, and the access network device, that is, the sending unit 43 sequentially passes through the Internet, the core.
  • the network device, the access network device sends the service data to the device for content distribution.
  • the sending unit 43 may be a connection between the device through the content distribution, the Internet, the core network device, the access network device, and the content distribution device, and the stored The service data requested by the user equipment is sent to the device for content distribution.
  • connection may be a TCP connection or a customized connection, which is not limited by the embodiment of the present invention.
  • the sending unit 43 may copy the service data sent to the user equipment, and send the copied service data to the content through the Internet, the core network device, and the access network device. The device that is distributed does not need to establish a connection at this time.
  • the processing unit 44 is configured to discard the service data sent by the sending unit 43.
  • the content distribution apparatus can be applied to various communication networks, for example, can be applied to a Global System of Mobile communication (GSM) S Universal Mobile Telecommunications System (UMTS). (Long Term Evolution, LTE) system, or a network such as a wireless local area network (WLAN).
  • GSM Global System of Mobile communication
  • UMTS Universal Mobile Telecommunications System
  • WLAN wireless local area network
  • the content distribution device may be set independently or in an access network device;
  • the content distribution device may be set independently, or may be located in an access network device of a UMTS network, for example, a Radio Network Controller (RNC), and a corresponding core network device, for example, may be a gateway.
  • GGSN GPRS support node
  • BRAS Broadband Remote Access Server
  • the sending unit 43 may include a first module 431 , a second module 432 , and a third module 433 .
  • the first module 431 is configured to: if the cache unit 42 stores the service data requested by the user equipment, send, by using the access network device, the service data requested by the user equipment stored in the cache unit 42 to the User equipment
  • the second module 432 is configured to modify the address of the content server in the service request received by the receiving unit 41 to the content if the cache unit 42 stores the service data requested by the user equipment.
  • An address of the distributed device, and the modified service request is sent to the core network device by the access network device;
  • the third module 433 is configured to: if the cache unit 42 stores the service data requested by the user equipment, the device that distributes the content, the Internet, the core network device, and the access network
  • the connection between the device and the device for distributing the content, and the service data requested by the user device stored by the cache unit 42 is sent to the device for content distribution.
  • the connection may be a TCP connection or a customized connection, which is not limited by the embodiment of the present invention.
  • the first module 431 is further configured to send, by using the access network device, the service data stored by the cache unit 42 to the user equipment by using an access network device. Send a service request response.
  • the third module 433 may also be used by the device that distributes the content,
  • the connection between the Internet, the core network device, the access network device, and the content distribution device transmits a service request response to the content distribution device.
  • the sending unit 43 may include a first module 431 , a second module 432 , and a fourth module 434 .
  • the first module 431 is configured to: if the cache unit 42 stores the service data requested by the user equipment, send, by using the access network device, the service data requested by the user equipment stored in the cache unit 42 to the User equipment
  • the second module 432 is configured to modify the address of the content server in the service request received by the receiving unit 41 to the content if the cache unit 42 stores the service data requested by the user equipment.
  • An address of the distributed device, and the modified service request is received by the access network device Sent to the core network device;
  • the fourth module 434 is configured to: if the cache unit 42 stores the service data requested by the user equipment, copy the service data sent by the first module 431 to the user equipment, and use the Internet, The core network device, the access network device, transmits the copied service data to the device for content distribution. By copying the data, you don't need to establish a connection, saving system resources compared to establishing a connection.
  • the processing unit 44 may further be configured to discard the received modified service request.
  • the first module 431 may be further configured to store the cache unit 42 by using an access network device.
  • the service request response is sent to the user equipment by using the access network device;
  • the fourth module 434 is further configured to: copy the service request response sent to the user equipment, And transmitting, by the Internet, the core network device, the access network device, the copied service request response to the device for content distribution;
  • the processing unit 44 may further be configured to discard the copied service request. response.
  • the device for content distribution stores the service data requested by the user equipment, and sends the service data requested by the stored user equipment to the user equipment through the access network device, and the received service is received.
  • the address of the content server in the request is modified to the address of the device for content distribution and sent to the core network device, after receiving the modified service request that the core network device routes to the device of the content distribution, through the Internet,
  • the core network device, the access network device sends the stored service data to the content distribution device, and discards the service data, so that the device distributed by the content passes the access network device to the user device
  • the core network device can manage and control the service data requested by the user equipment, so as to implement functions such as charging or monitoring the user equipment.
  • FIG. 7 is a schematic structural diagram of an embodiment of an access network device according to the present invention.
  • the access network device 71 includes the content distribution device 72 of the embodiment shown in FIG. 4-6.
  • the specific content of the content distribution device 72 can be referred to the following figure. 4 - the description of the embodiment shown in FIG. 6 will not be described again.
  • the access network device stores the service data requested by the user equipment
  • the service data requested by the stored user equipment is sent to the user equipment through the access network device, and the received service is received.
  • the address of the content server in the request is modified to the address of the device to which the content is distributed and sent to the core network device, and the device that receives the routing of the core network device to the content distribution device
  • the stored service data is sent to the device for content distribution through the Internet, the core network device, and the access network device, and the service data is discarded, thereby enabling the connection
  • the core network device can implement the management and control of the service data requested by the user equipment, so as to implement functions such as charging or monitoring the user equipment.

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Abstract

本发明的实施例涉及内容分发的方法、装置及接入网设备。本发明的一种实施例的方法包括:接入网中的缓存服务器接收用户设备发送的业务请求,该业务请求中包含用户设备请求的业务数据所在的内容服务器的地址;若储存有用户设备请求的业务数据,通过接入网设备将储存的业务数据发送给用户设备,将接收的业务请求中的内容服务器的地址修改为该接入网中的缓存服务器的地址并发送到核心网设备;接收核心网设备路由至该接入网中的缓存服务器的修改后的业务请求;通过因特网、核心网设备、接入网设备将储存的业务数据发送到该接入网中的缓存服务器,该接入网中的缓存服务器丢弃所述业务数据。本发明实施例的技术方案能够使核心网设备可以控制管理用户设备请求的业务数据。

Description

内容分发的方法、 装置及接入网设备 本申请要求于 2012 年 1 月 13 日提交中国专利局、 申请号为 201210011433.8、 发明名称为"内容分发的方法、 装置及接入网设备"的中国专利 申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域,尤其涉及内容分发的方法、 装置及接入网设备。
背景技术
内容分发网络 (Content Delivery Network, CDN)是为解决目前的网络拥塞、 宽带瓶颈等问题而提出的一种应用层网络体系结构。 内容分发网络能够将用户 访问内容快速推到网络边缘,使用户的请求能够就近得到快速响应,这不仅大 大减轻了网络的负载,而且降低了网络拥塞出现的概率,縮短了请求时延。 为 了达成该目的,在内容分发网络中可以采用缓存 (Cache)服务器。 例如,用户设 备 (User Equipment, UE)的业务请求首先被发送到接入网中的缓存服务器,如果 接入网中的缓存服务器中储存有该用户设备请求的业务数据,则可以由接入网 中的缓存服务器通过接入网就近为用户设备提供其请求的业务数据,从而节约 了网络的带宽和远端的内容服务器的系统资源,縮短了请求时延;如果接入网 中的缓存服务器没有储存该用户设备请求的业务数据,则接入网中的缓存服务 器便可以从内容服务器获取请求的业务数据并转发给用户设备,同时可以在本 地缓存一份副本,当其他用户设备再请求该业务数据时便可以通过接入网就近 发送给请求的其他用户设备。
然而,在现有技术中 , 当接入网中的缓存服务器中储存有用户设备请求的 业务数据时, 由接入网中的缓存服务器通过接入网就近为用户设备提供其请求 的业务数据,使得核心网设备无法控制管理用户设备请求的业务数据,也无法 对用户设备实现计费或监听等功能。 发明内容
本发明实施例提供了一种内容分发的方法、 装置和接入网设备,以使核心 网设备可以控制管理用户设备请求的业务数据。
一方面,提供了一种内容分发的方法,包括:
接入网中的缓存服务器接收用户设备发送的业务请求,所述业务请求中包 含所述用户设备请求的业务数据所在的内容服务器的地址;
若所述接入网中的缓存服务器中储存有所述用户设备请求的业务数据,所 述接入网中的缓存服务器通过接入网设备将所述储存的用户设备请求的业务数 据发送给所述用户设备,并将所述接收的业务请求中的所述内容服务器的地址 修改为所述接入网中的缓存服务器的地址,并将修改后的所述业务请求经所述 接入网设备发送到核心网设备;
所述接入网中的缓存服务器接收所述核心网设备根据所述修改后的业务请 求中携带的所述接入网中的缓存服务器的地址路由至该接入网中的缓存服务器 的所述修改后的业务请求;
所述接入网中的缓存服务器通过因特网、 所述核心网设备、 所述接入网设 备将所述储存的用户设备请求的业务数据发送到所述接入网中的缓存服务器, 所述接入网中的缓存服务器丟弃所述业务数据。
另一方面,提供了一种内容分发装置,位于接入网中 ,包括:
接收单元,用于接收用户设备发送的业务请求,所述业务请求中包含所述 用户设备请求的业务数据所在的内容服务器的地址;
缓存单元,用于储存业务数据;
发送单元,用于若所述缓存单元中储存有所述用户设备请求的业务数据, 则通过接入网设备将所述缓存单元储存的用户设备请求的业务数据发送给所述 用户设备,并将所述接收单元接收的业务请求中的所述内容服务器的地址修改 为所述内容分发的装置的地址,并将修改后的所述业务请求经所述接入网设备 发送到核心网设备;
所述接收单元还用于接收所述核心网设备根据所述修改后的业务请求中携 带的所述内容分发的装置的地址,路由至该内容分发的装置的所述修改后的业 务请求;
所述发送单元还用于通过因特网、 所述核心网设备、 所述接入网设备将所 述缓存单元储存的用户设备请求的业务数据发送到所述内容分发的装置; 处理单元,用于丟弃所述发送单元发送来的所述业务数据。
再一方面,提供了一种接入网设备,该接入网设备包括前述内容分发的装 置。
本发明的实施例提供的技术方案中 ,若接入网中的缓存服务器中储存有用 户设备请求的业务数据,将所述储存的用户设备请求的业务数据通过接入网设 备发送给所述用户设备,并将接收的业务请求中的内容服务器的地址修改为接 入网中的缓存服务器的地址并发送到核心网设备,在接收所述核心网设备路由 至该接入网中的缓存服务器的所述修改后的业务请求后,通过因特网、 所述核 心网设备、 所述接入网设备将所述储存的业务数据发送到所述接入网中的缓存 服务器,并丟弃所述业务数据,从而使得由接入网中的缓存服务器通过接入网 设备向用户设备提供业务数据时,核心网设备可以实现对用户设备的请求的业 务数据进行管理和控制,以实现对用户设备的计费或监听等功能。
附图说明
图 1为本发明的内容分发的方法的第一实施例的流程图 ;
图 2为本发明的内容分发的方法的第二实施例的流程图 ;
图 3为本发明的内容分发的方法的第三实施例的流程图 ;
图 4为本发明的内容分发的装置的实施例的结构示意图 ;
图 5为本发明的内容分发的装置中的一种发送单元的实施例的结构示意图; 图 6为本发明的内容分发的装置中的另一种发送单元的实施例的结构示意 图 ;
图 7为本发明的接入网设备的实施例的结构示意图。
具体实施方式
图 1为本发明的内容分发的方法的第一实施例的流程图 ,该实施例的方法 包括:
S100:接入网中的缓存服务器接收用户设备发送的业务请求,所述业务请 求中包含所述用户设备请求的业务数据所在的内容服务器的地址。
具体的,例如,所述业务请求可以是请求 web业务,例如访问网页、 音视 频等等, 当然也可以是其它类型的业务,本发明实施例对此并不进行限定;所 述内容服务器,例如,可以位于因特网( Internet )中 ,储存有用户想访问的业 务数据,所述内容服务器的地址,可以是公有地址( Public Address )b
5101:若所述接入网中的缓存服务器中储存有所述用户设备请求的业务数 据,所述接入网中的缓存服务器通过接入网设备将所述储存的用户设备请求的 业务数据发送给所述用户设备,并将所述接收的业务请求中的所述内容服务器 的地址修改为所述接入网中的缓存服务器的地址,并将修改后的所述业务请求 经接入网设备发送到核心网设备。
具体的,例如,所述接入网中的缓存服务器中可以储存有一部分业务数据, 若储存的业务数据中包含有所述用户设备请求的业务数据,则通过接入网设备 将所述储存的用户设备请求的业务数据发送给所述用户设备,并将所述接收到 的业务请求中包含的所述内容服务器的地址修改为所述接入网中的缓存服务器 的地址,并将修改后的所述业务请求经所述接入网设备发送到核心网设备。 其 中 ,所述接入网中的缓存服务器的地址,例如,可以是公有地址。
可选的,通过接入网设备将所述储存的用户设备请求的业务数据发送给所 述用户设备之前,可以发送业务请求响应给所述用户设备。
5102:所述接入网中的缓存服务器接收所述核心网设备根据所述修改后的 业务请求中携带的所述接入网中的缓存服务器的地址路由至该接入网中的缓存 服务器的所述修改后的业务请求。
具体的,例如,所述核心网设备收到所述修改后的业务请求以后,则可以 根据所述修改后的业务请求中携带的所述接入网中的缓存服务器的地址,将该 修改后的业务请求路由到该接入网中的缓存服务器。 所述路由过程,例如,可 以是通过因特网路由到所述接入网中的缓存服务器。
可选的,在所述接入网中的缓存服务器接收所述核心网设备路由至该接入 网中的缓存服务器的所述修改后的业务请求之后,所述接入网中的缓存服务器 还可以通过所述因特网、 所述核心网设备、 所述接入网设备向所述接入网中的 缓存服务器发送业务请求响应。
可选的,若在 S101中,可以发送业务请求响应给所述用户设备,则所述接 入网中的缓存服务器可以复制发送给所述用户设备的业务请求响应,并通过因 特网、 所述核心网设备、 所述接入网设备将所述复制的业务请求响应发送到所 述接入网中的缓存服务器。
5103:所述接入网中的缓存服务器通过因特网、 所述核心网设备、 所述接 入网设备将所述储存的用户设备请求的业务数据发送到所述接入网中的缓存服 务器,所述接入网中的缓存服务器丟弃所述业务数据。
具体的,所述接入网中的缓存服务器通过因特网、 所述核心网设备、 所述 接入网设备将所述储存的用户设备请求的业务数据发送到所述接入网中的缓存 服务器,即由所述接入网中的缓存服务器依次经过所述因特网、 所述核心网设 备、 所述接入网设备,将所述业务数据发送到所述接入网中的缓存服务器。 例 如,可以是通过所述接入网中的缓存服务器、 所述因特网、 所述核心网设备、 所述接入网设备与所述接入网中的缓存服务器之间的连接,将所述储存的用户 设备请求的业务数据发送到所述接入网中的缓存服务器,例如,所述连接可以 为传输控制协议 (Transmission Control Protocol, TCP)连接或者自定义的连接,本 发明实施例对此并不进行限定。 又例如,也可以由所述接入网中的缓存服务器 复制发送给所述用户设备的业务数据,并通过因特网、 所述核心网设备、 所述 接入网设备将所述复制的业务数据发送到所述接入网中的缓存服务器,此时不 需要建立连接。
可选的,若在 S102中,所述接入网中的缓存服务器复制发送给所述用户设 备的业务请求响应,并通过因特网、 所述核心网设备、 所述接入网设备将所述 复制的业务请求响应发送到所述接入网中的缓存服务器,则所述接入网中的缓 存服务器丟弃所述业务请求响应。 所述接入网中的缓存服务器还可以丟弃接收 到的路由过来的所述修改后的业务请求。
本发明实施例可以应用于各种通信网络中 ,例如,可以应用于全球移动通 讯系统(Global System of Mobile communication, GSM)、 通用移动通信系统 (Universal Mobile Telecommunications System, UMTS)S 长期演进 (Long Term Evolution, LTE)系统、 或者无线局域网 (Wireless Local Area Networks, WLAN)等 网络中。 此外,所述接入网中的缓存服务器,可以独立设置,也可以位于接入 网设备中 ;以 UMTS网络为例来说,接入网中的缓存服务器可以独立设置,也 可以位于 UMTS网络的接入网设备,例如,无线网络控制器 (Radio Network Controller, RNC)中 ,相应的核心网设备,例如,可以为网关 GPRS支持节点 (Gateway GPRS Support Node, GGSN)S 宽带远程接入服务器 (Broadband Remote Access Server, BRAS)或者其它具有数据路由及控制管理功能的设备,在此不再 赘述。
在本发明第一实施例的方法中 ,若接入网中的缓存服务器中储存有用户设 备请求的业务数据,将所述储存的用户设备请求的业务数据通过接入网设备发 送给所述用户设备,并将接收的业务请求中的内容服务器的地址修改为接入网 中的缓存服务器的地址并发送到核心网设备,在接收所述核心网设备路由至该 接入网中的缓存服务器的所述修改后的业务请求后,通过因特网、 所述核心网 设备、 所述接入网设备将所述储存的业务数据发送到所述接入网中的缓存服务 器,并丟弃所述业务数据,从而使得由接入网中的缓存服务器通过接入网设备 向用户设备提供业务数据时,核心网设备可以实现对用户设备的请求的业务数 据进行管理和控制,以实现对用户设备的计费或监听等功能。
图 2为本发明的内容分发的方法的第二实施例的流程图。 该实施例的方法 包括:
5200:接入网中的缓存服务器接收用户设备发送的业务请求。
具体的,接入网中的缓存服务器可以接收用户设备通过接入网设备发送的 业务请求,例如,所述业务请求中可以包含所述用户设备请求的业务数据所在 的内容服务器的地址。 所述业务请求,例如,可以是请求 web业务,例如访问 网页、 音视频等等,当然也可以是其它类型的业务,本发明实施例对此并不进 行限定;所述内容服务器,例如,可以位于因特网中 ,储存有用户想访问的业 务数据,所述内容服务器的地址,可以是公有地址。
5201:所述接入网中的缓存服务器检测其自身是否储存有所述用户设备请 求的业务数据,若有,则执行 S202;若无,则可以通过接入网设备将所述业务 请求发送到核心网设备,所述核心网设备将所述业务请求经因特网路由到所述 内容服务器, 由所述内容服务器通过所述因特网、 所述核心网设备、 所述接入 网设备为用户设备提供请求的业务数据。
5202:所述接入网中的缓存服务器将所述业务请求中包含的内容服务器的 地址修改为所述接入网中的缓存服务器的地址。
具体的,例如,可以将所述内容服务器的地址修改为所述接入网中的缓存 服务器的公有地址。
S203-204:所述接入网中的缓存服务器通过接入网设备将修改后的所述业务 请求发送到核心网设备。
具体的,所述接入网中的缓存服务器可以将修改后的所述业务请求发送到 接入网设备( S203 所述接入网设备再将接收到的修改后的所述业务请求发送 到核心网设备( S204 ) ,例如,可以通过所述接入网设备与所述核心网设备之间 的接口发送。
5205:所述核心网设备将修改后的所述业务请求路由到所述接入网中的缓 存服务器。 具体的,例如,所述核心网设备可以根据修改后的所述业务请求中 携带的所述接入网中的缓存服务器的地址,通过因特网将所述修改后的业务请 求路由到所述接入网中的缓存服务器。
5206:所述接入网中的缓存服务器丟弃所述修改后的业务请求。
5207:若储存存有所述用户设备请求的业务数据,所述接入网中的缓存服 务器通过接入网设备发送业务请求响应到所述用户设备。
S208- S210 :所述接入网中的缓存服务器复制所述向用户设备发送的业务请 求响应,并通过所述因特网、 所述核心网设备、 所述接入网设备将所述复制的 业务请求响应发送到所述接入网中的缓存服务器。
具体的,所述接入网中的缓存服务器可以向所述核心网设备发送所述复制 的业务请求响应,例如,所述接入网中的缓存服务器可以通过因特网向所述核 心网设备发送所述复制的业务请求响应( S208 )b 所述核心网设备收到所述复制 的业务请求响应后,可以向所述接入网设备发送所述复制的业务请求响应 ( S209 所述接入网设备向所述接入网中的缓存服务器发送所述复制的业务请 求响应( S210 )b
5211:所述接入网中的缓存服务器丟弃所述复制的业务请求响应。
需要说明的是,步骤 S207至 S211是可选步骤。
5212:所述接入网中的缓存服务器通过所述接入网设备向所述用户设备发 送所述储存的业务数据。
S213-S215:所述接入网中的缓存服务器复制发送给所述用户设备的所述业 务数据,并通过因特网、 所述核心网设备、 所述接入网设备向所述接入网中的 缓存服务器发送所述复制的业务数据。
具体的,所述接入网中的缓存服务器通过因特网向所述核心网设备发送所 述复制的业务数据 (S213)。 所述核心网设备收到所述复制的业务数据后,向所述 接入网设备发送所述复制的业务数据 (S214)b所述接入网设备向所述接入网中的 缓存服务器发送所述复制的业务数据 (S215)。 此时在所述接入网中的缓存服务 器、 所述因特网、 所述核心网设备、 所述接入网设备及所述接入网中的缓存服 务器之间 ,不需要建立连接,相比建立连接而言,可以节省系统资源。
S216:所述接入网中的缓存服务器丟弃所述复制的业务数据。 本发明实施例可以应用于各种通信网络中 ,例如,可以应用于全球移动通 讯系统(Global System of Mobile communication, GSM)、 通用移动通信系统 (Universal Mobile Telecommunications System, UMTS)S 长期演进 (Long Term Evolution, LTE)系统、 或者无线局域网 (Wireless Local Area Networks, WLAN)等 网络中。 此外,所述接入网中的缓存服务器,可以独立设置,也可以位于接入 网设备中 ;以 UMTS网络为例来说,接入网中的缓存服务器可以独立设置,也 可以位于 UMTS网络的接入网设备,例如,无线网络控制器 (Radio Network Controller, RNC)中 ,相应的核心网设备,例如,可以为网关 GPRS支持节点 (Gateway GPRS Support Node, GGSN)S 宽带远程接入服务器 (Broadband Remote Access Server, BRAS)或者其它具有数据路由及控制管理功能的设备,在此不再 赘述。
在本发明第二实施例的方法中 ,若接入网中的缓存服务器中储存有用户设 备请求的业务数据,通过接入网设备将所述储存的用户设备请求的业务数据发 送给所述用户设备,并将接收的业务请求中的内容服务器的地址修改为接入网 中的缓存服务器的地址并发送到核心网设备,在接收所述核心网设备路由至该 接入网中的缓存服务器的所述修改后的业务请求后,复制发送给所述用户设备 的业务数据,并通过因特网、 所述核心网设备、 所述接入网设备将所述复制的 业务数据发送到所述接入网中的缓存服务器,并丟弃所述复制的业务数据,从 而使得由接入网中的缓存服务器通过接入网设备向用户设备提供业务数据时, 核心网设备可以实现对用户设备的请求的业务数据进行管理和控制,以实现对 用户设备的计费或监听等功能。
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, 因为某些步骤也可以采用其他先后顺序或者同时执行, ,例 如, S207也可以与 S202同时进行,或者在 S202被执行之前执行。 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 的动作并不一定是本发明所必须的。
图 3为本发明的内容分发的方法的第三实施例的流程图。 该实施例的方法 包括:
S300:接入网中的缓存服务器接收用户设备发送的业务请求。
具体的,接入网中的缓存服务器可以接收用户设备通过接入网设备发送的 业务请求,例如,所述业务请求中可以包含所述用户设备请求的业务数据所在 的内容服务器的地址。 所述业务请求,例如,可以是请求 web业务,例如访问 网页、 音视频等等,当然也可以是其它类型的业务,本发明实施例对此并不进 行限定;所述内容服务器,例如,可以位于因特网中 ,储存有用户想访问的业 务数据,所述内容服务器的地址,可以是公有地址。
5301:所述接入网中的缓存服务器检测其自身是否储存有所述用户设备请 求的业务数据,若有,则执行 S302;若无,则可以通过接入网设备将所述业务 请求发送到核心网设备,所述核心网设备将所述业务请求经因特网路由到所述 内容服务器, 由所述内容服务器通过所述因特网、 所述核心网设备、 所述接入 网设备为用户设备提供请求的业务数据。
5302:所述接入网中的缓存服务器向所述用户设备发送业务请求响应。 例 如,所述接入网中的缓存服务器,可以通过接入网设备向所述用户设备发送业 务请求响应。
5303:所述接入网中的缓存服务器向所述用户设备发送业务数据。 例如, 所述接入网中的缓存服务器,可以通过接入网设备向所述用户设备发送业务数 据,从而可以就近,即直接从接入网 , 向用户设备提供其请求的业务数据,而 不用再通过核心网设备访问因特网上的内容服务器,从而节约了网络的带宽和 内容服务器的系统资源,也縮短了请求时延。
5304:若储存有所述用户设备请求的业务数据,所述接入网中的缓存服务 器将所述接收的业务请求中包含的内容服务器的地址修改为所述接入网中的缓 存服务器的地址。
具体的,例如,可以将所述内容服务器的地址修改为所述接入网中的缓存 服务器的公有地址。
S305-306:所述接入网中的缓存服务器通过接入网设备将修改后的所述业务 请求发送到核心网设备。
具体的,所述接入网中的缓存服务器可以将修改后的所述业务请求发送到 接入网设备( S305 所述接入网设备再将接收到的修改后的所述业务请求发送 到核心网设备( S306 ) ,例如,可以通过所述接入网设备与所述核心网设备之间 的接口发送。
S307:所述核心网设备将修改后的所述业务请求路由到所述接入网中的缓 存服务器。 具体的,例如,所述核心网设备可以根据修改后的所述业务请求中 携带的所述接入网中的缓存服务器的地址,通过因特网将所述修改后的业务请 求路由到所述接入网中的缓存服务器。
S308- S310:所述接入网中的缓存服务器通过所述因特网、 所述核心网设 备、 所述接入网设备将业务请求响应发送到所述接入网中的缓存服务器。
具体的,所述接入网中的缓存服务器可以向所述核心网设备发送所述业务 请求响应,例如,所述接入网中的缓存服务器可以通过因特网向所述核心网设 备发送所述业务请求响应( S308 )b 所述核心网设备收到所述业务请求响应后, 可以向所述接入网设备发送所述业务请求响应( S309 )b 所述接入网设备向所述 接入网中的缓存服务器发送所述业务请求响应( S310 )b S308- S310中的业务请 求响应,可以通过所述接入网中的缓存服务器、 所述因特网、 所述核心网设备、 所述接入网设备与所述接入网中的缓存服务器之间的连接进行发送。
S311:所述接入网中的缓存服务器通过因特网、 所述核心网设备、 所述接 入网设备向所述接入网中的缓存服务器发送该接入网中的缓存服务器储存的该 用户设备请求的业务数据,所述接入网中的缓存服务器丟弃接收到的所述业务 数据。
具体的,所述接入网中的缓存服务器通过因特网、 所述核心网设备、 所述 接入网设备向所述接入网中的缓存服务器发送业务数据,即由所述接入网中的 缓存服务器依次经过所述因特网、 所述核心网设备、 所述接入网设备,将所述 业务数据发送到所述接入网中的缓存服务器。 例如,可以是通过所述接入网中 的缓存服务器、 所述因特网、 所述核心网设备、 所述接入网设备与所述接入网 中的缓存服务器之间的连接来发送业务数据。 例如,所述连接可以为传输控制 协议 (Transmission Control Protocol, TCP)连接或者自定义的连接,本发明实施例 对此并不进行限定。 通过所述连接来发送业务数据,可以保证传输的可靠性。
本发明实施例可以应用于各种通信网络中 ,例如,可以应用于全球移动通 讯系统(Global System of Mobile communication, GSM)、 通用移动通信系统 (Universal Mobile Telecommunications System, UMTS)S 长期演进 (Long Term Evolution, LTE)系统、 或者无线局域网 (Wireless Local Area Networks, WLAN)等 网络中。 此外,所述接入网中的缓存服务器,可以独立设置,也可以位于接入 网设备中 ;以 UMTS网络为例来说,接入网中的缓存服务器可以独立设置,也 可以位于 UMTS网络的接入网设备,例如,无线网络控制器 (Radio Network Controller, RNC)中 ,相应的核心网设备,例如,可以为网关 GPRS支持节点 (Gateway GPRS Support Node, GGSN)S 宽带远程接入服务器 (Broadband Remote Access Server, BRAS)或者其它具有数据路由及控制管理功能的设备,在此不再 赘述。
在本发明第三实施例的方法中 ,若接入网中的缓存服务器中储存有用户设 备请求的业务数据,通过接入网设备将所述储存的用户设备请求的业务数据发 送给所述用户设备,并将接收的业务请求中的内容服务器的地址修改为接入网 中的缓存服务器的地址并发送到核心网设备,在接收所述核心网设备路由至该 接入网中的缓存服务器的所述修改后的业务请求后,所述接入网中的缓存服务 器通过因特网、 所述核心网设备、 所述接入网设备将所述储存的用户设备请求 的业务数据发送到所述接入网中的缓存服务器,并丟弃接收到的所述业务数 据,从而使得由接入网中的缓存服务器通过接入网设备向用户设备提供业务数 据时,核心网设备可以实现对用户设备的请求的业务数据进行管理和控制,以 实现对用户设备的计费或监听等功能。
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,因为某些步骤也可以采用其他先后顺序或者同时执行,例如 , S303也可以在 S304被执行之后执行。 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,所涉及的动作并不一定是本发明所必 须的,例如,步骤 S302是可选的,可以在 S301之后直接执行 S303。 又例如, 步骤 S308-S310也是可选的,可以在 S307之后直接执行 S311。
图 4为本发明的内容分发的装置的实施例的结构示意图。 该实施例的内容 分发装置,可以位于接入网中 ,可以包括:接收单元 41、 缓存单元 42、 发送单 元 43以及处理单元 44。
其中,所述接收单元 41用于接收用户设备发送的业务请求,所述业务请求 中包含所述用户设备请求的业务数据所在的内容服务器的地址。 具体的,例如 , 所述业务请求可以是请求 web业务,例如访问网页、 音视频等等,当然也可以 是其它类型的业务,本发明实施例对此并不进行限定;所述内容服务器,例如, 可以位于因特网( Internet )中 ,储存有用户想访问的业务数据,所述内容服务 器的地址,可以是公有地址( Public Address )b
所述缓存单元 42用于储存业务数据。
发送单元 43,用于若所述缓存单元 42中储存有所述用户设备请求的业务数 据,则通过接入网设备将所述缓存单元 42储存的用户设备请求的业务数据发送 给所述用户设备,并将所述接收单元 41接收的业务请求中的所述内容服务器的 地址修改为所述内容分发的装置的地址,并将修改后的所述业务请求经所述接 入网设备发送到核心网设备。 具体的 ,所述内容分发装置的地址,例如,可以 是公有地址。
所述接收单元 41还用于接收所述核心网设备根据所述修改后的业务请求中 携带的所述内容分发的装置的地址,路由至该内容分发的装置的所述修改后的 业务请求。 所述路由过程,例如,可以是通过因特网路由到所述内容分发装置。
所述发送单元 43还用于通过因特网、 所述核心网设备、 所述接入网设备将 所述缓存单元 42储存的用户设备请求的业务数据发送到所述内容分发的装置。 具体的,所述发送单元 32通过因特网、 所述核心网设备、 所述接入网设备向所 述内容分发的装置发送业务数据,即由所述发送单元 43依次经过所述因特网、 所述核心网设备、 所述接入网设备,将所述业务数据发送到所述内容分发的装 置。 例如,所述发送单元 43可以是通过所述内容分发的装置、 所述因特网、 所 述核心网设备、 所述接入网设备与所述内容分发的装置之间的连接,将所述储 存的用户设备请求的业务数据发送到所述内容分发的装置,例如,所述连接可 以为 TCP连接或者自定义的连接,本发明实施例对此并不进行限定。 又例如, 也可以由所述发送单元 43复制发送给所述用户设备的业务数据,并通过因特 网、 所述核心网设备、 所述接入网设备将所述复制的业务数据发送到所述内容 分发的装置,此时不需要建立连接。
处理单元 44 ,用于丟弃所述发送单元 43发送来的所述业务数据。
本发明实施例提供的内容分发装置可以应用于各种通信网络中 ,例如,可 以应用于全球移动通讯系统 (Global System of Mobile communication, GSM)S 通 用移动通信系统 (Universal Mobile Telecommunications System, UMTS 长期演进 (Long Term Evolution, LTE)系统、 或者无线局域网 (Wireless Local Area Networks, WLAN)等网络中。 此外,所述内容分发的装置,可以独立设置,也可以位于接 入网设备中 ;以 UMTS网络为例来说,所述内容分发装置可以独立设置,也可 以位于 UMTS网络的接入网设备,例如,无线网络控制器 (Radio Network Controller, RNC)中 ,相应的核心网设备,例如,可以为网关 GPRS支持节点 (Gateway GPRS Support Node, GGSN)S 宽带远程接入服务器 (Broadband Remote Access Server, BRAS)或者其它具有数据路由及控制管理功能的设备,在此不再 赘述。
可选的,所述发送单元 43 ,如图 5所示,可以包括第一模块 431、 第二模 块 432和第三模块 433。
所述第一模块 431 ,用于若所述缓存单元 42中储存有所述用户设备请求的 业务数据,则通过接入网设备将所述缓存单元 42储存的用户设备请求的业务数 据发送给所述用户设备;
所述第二模块 432 ,用于若所述缓存单元 42中储存有所述用户设备请求的 业务数据,将所述接收单元 41接收的业务请求中的所述内容服务器的地址修改 为所述内容分发的装置的地址,并将修改后的所述业务请求经所述接入网设备 发送到所述核心网设备;
所述第三模块 433 ,用于若所述缓存单元 42中储存有所述用户设备请求的 业务数据,通过所述内容分发的装置、 所述因特网、 所述核心网设备、 所述接 入网设备与所述内容分发的装置之间的连接,将所述缓存单元 42储存的用户设 备请求的业务数据发送到所述内容分发的装置。 例如,所述连接可以为 TCP连 接或者自定义的连接,本发明实施例对此并不进行限定。 通过所述连接来发送 业务数据,可以保证传输的可靠性。
可选的,所述第一模块 431还可以用于在通过接入网设备将所述缓存单元 42储存的业务数据发送给所述用户设备之前,通过所述接入网设备向所述用户 设备发送业务请求响应。
可选的,所述接收单元 41接收所述核心网设备路由至该内容分发的装置的 所述修改后的业务请求之后,所述第三模块 433还可以用于通过所述内容分发 的装置、 所述因特网、 所述核心网设备、 所述接入网设备与所述内容分发的装 置之间的连接,将业务请求响应发送到所述内容分发的装置。
可选的,所述发送单元 43 ,如图 6所示,可以包括第一模块 431、 第二模 块 432和第四模块 434。
所述第一模块 431 ,用于若所述缓存单元 42中储存有所述用户设备请求的 业务数据,则通过接入网设备将所述缓存单元 42储存的用户设备请求的业务数 据发送给所述用户设备;
所述第二模块 432 ,用于若所述缓存单元 42中储存有所述用户设备请求的 业务数据,将所述接收单元 41接收的业务请求中的所述内容服务器的地址修改 为所述内容分发的装置的地址,并将修改后的所述业务请求经所述接入网设备 发送到所述核心网设备;
所述第四模块 434 ,用于若所述缓存单元 42中储存有所述用户设备请求的 业务数据,复制所述第一模块 431发送给所述用户设备的业务数据,并通过因 特网、 所述核心网设备、 所述接入网设备将所述复制的业务数据发送到所述内 容分发的装置。 通过复制数据,可以不需要建立连接,相比建立连接而言,可 以节省系统资源。
可选的,在所述发送单元 43包括第一模块 431、 第二模块 432和第四模块 434时,所述处理单元 44还可以用于丟弃所述接收的修改后的业务请求。
可选的,在所述发送单元 43包括第一模块 431、 第二模块 432和第四模块 434时,所述第一模块 431还可以用于在通过接入网设备将所述缓存单元 42储 存的业务数据发送给所述用户设备之前,通过所述接入网设备向所述用户设备 发送业务请求响应;所述第四模块 434还可以用于复制发送给所述用户设备的 业务请求响应,并通过因特网、 所述核心网设备、 所述接入网设备将所述复制 的业务请求响应发送到所述内容分发的装置;所述处理单元 44还可以用于丟弃 所述复制的业务请求响应。
本发明的实施例提供的内容分发的装置,若储存有用户设备请求的业务数 据,将所述储存的用户设备请求的业务数据通过接入网设备发送给所述用户设 备,并将接收的业务请求中的内容服务器的地址修改为内容分发的装置的地址 并发送到核心网设备,在接收所述核心网设备路由至该内容分发的装置的所述 修改后的业务请求后,通过因特网、 所述核心网设备、 所述接入网设备将所述 储存的业务数据发送到所述内容分发的装置,并丟弃所述业务数据,从而使得 由内容分发的装置通过接入网设备向用户设备提供业务数据时,核心网设备可 以实现对用户设备的请求的业务数据进行管理和控制,以实现对用户设备的计 费或监听等功能。
图 7为本发明的接入网设备的实施例的结构示意图,该接入网设备 71包括 图 4-6所示的实施例的内容分发装置 72 ,该内容分发装置 72的具体内容可以参 考图 4-图 6所示的实施例的描述,不再赘述。
本发明的实施例提供的接入网设备,若储存有用户设备请求的业务数据, 将所述储存的用户设备请求的业务数据通过接入网设备发送给所述用户设备, 并将接收的业务请求中的内容服务器的地址修改为该内容分发的装置的地址并 发送到核心网设备,在接收所述核心网设备路由至该内容分发的装置的所述修 改后的业务请求后,通过因特网、 所述核心网设备、 所述接入网设备将所述储 存的业务数据发送到所述内容分发的装置,并丟弃所述业务数据,从而使得由 接入网设备向用户设备提供其储存的业务数据时,核心网设备可以实现对用户 设备的请求的业务数据进行管理和控制,以实现对用户设备的计费或监听等功 能。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述各内 容分发的装置的实施例及接入网设备的实施例描述的内容分发装置和接入网设 备的具体工作过程,可以参考前述对应的方法实施例中的对应过程,在此不再 赘述。
在上述实施例中 ,对各个实施例的描述都各有侧重,某个实施例中没有详 述的部分,可以参见其他实施例的相关描述,各个实施例也可以相互结合从而 得到新的实施例,此处不再赘述。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到本发明 可借助软件加必需的硬件平台的方式来实现,当然也可以全部通过硬件来实 施,但很多情况下前者是更佳的实施方式。 基于这样的理解,本发明的技术方 案对背景技术做出贡献的全部或者部分可以以软件产品的形式体现出来,该计 算机软件产品可以存储在存储介质中 ,如 ROM/RAM、 磁碟、 光盘等,包括若 干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备 等)执行本发明各个实施例或者实施例的某些部分所述的方法。
以上所掲露的仅为本发明的多个实施例而已,当然不能以此来限定本发明 之权利范围 , 因此依本发明权利要求所作的等同变化,仍属本发明所涵盖的范

Claims

权利要求书
1、 一种内容分发的方法,其特征在于,包括:
接入网中的缓存服务器接收用户设备发送的业务请求,所述业务请求中包 含所述用户设备请求的业务数据所在的内容服务器的地址;
若所述接入网中的缓存服务器中储存有所述用户设备请求的业务数据,所 述接入网中的缓存服务器通过接入网设备将所述储存的用户设备请求的业务数 据发送给所述用户设备,并将所述接收的业务请求中的所述内容服务器的地址 修改为所述接入网中的缓存服务器的地址,并将修改后的所述业务请求经所述 接入网设备发送到核心网设备;
所述接入网中的缓存服务器接收所述核心网设备根据所述修改后的业务请 求中携带的所述接入网中的缓存服务器的地址路由至该接入网中的缓存服务器 的所述修改后的业务请求;
所述接入网中的缓存服务器通过因特网、 所述核心网设备、 所述接入网设 备将所述储存的用户设备请求的业务数据发送到所述接入网中的缓存服务器, 所述接入网中的缓存服务器丟弃所述业务数据。
2、 根据权利要求 1所述的内容分发的方法,其特征在于,所述接入网中的 缓存服务器通过因特网、 所述核心网设备、 所述接入网设备将所述储存的用户 设备请求的业务数据发送到所述接入网中的缓存服务器,包括:
通过所述接入网中的缓存服务器、 所述因特网、 所述核心网设备、 所述接 入网设备与所述接入网中的缓存服务器之间的连接,将所述储存的用户设备请 求的业务数据发送到所述接入网中的缓存服务器。
3、 根据权利要求 2所述的内容分发的方法,其特征在于,所述连接为传输 控制协议 TCP连接或者自定义的连接。
4、 根据权利要求 2所述的内容分发的方法,其特征在于,其特征在于,所 述接入网中的缓存服务器接收所述核心网设备路由至该接入网中的缓存服务器 的所述修改后的业务请求之后,所述方法还包括:
所述接入网中的缓存服务器通过所述因特网、 所述核心网设备、 所述接入 网设备向所述接入网中的缓存服务器发送业务请求响应。
5、 根据权利要求 1所述的内容分发的方法,其特征在于,所述接入网中的 缓存服务器通过因特网、 所述核心网设备、 所述接入网设备将所述储存的用户 设备请求的业务数据发送到所述接入网中的缓存服务器,包括: 所述接入网中的缓存服务器复制发送给所述用户设备的业务数据,并通过 因特网、 所述核心网设备、 所述接入网设备将所述复制的业务数据发送到所述 接入网中的缓存服务器。
6、 根据权利要求 5所述的内容分发的方法,其特征在于,所述接入网中的 缓存服务器接收所述核心网设备路由至该接入网中的缓存服务器的所述修改后 的业务请求之后,所述方法进一步包括:丟弃所述修改后的业务请求。
7、 根据权利要求 5所述的内容分发的方法,其特征在于,所述接入网的缓 存服务器通过接入网设备将所述储存的用户设备请求的业务数据发送给所述用 户设备之前,所述方法进一步包括:所述接入网的缓存服务器通过所述接入网 设备向所述用户设备发送业务请求响应;所述接入网中的缓存服务器复制发送 给所述用户设备的业务请求响应,并通过因特网、 所述核心网设备、 所述接入 网设备将所述复制的业务请求响应发送到所述接入网中的缓存服务器。
8、 根据权利要求 7所述的内容分发的方法,其特征在于,所述方法进一步 包括:丟弃所述复制的业务请求响应。
9、 根据权利要求 1至 8中任意一项所述的内容分发的方法,其特征在于, 所述接入网中的缓存服务器位于所述接入网设备中。
10、 根据权利要求 1至 8中任意一项所述的内容分发的方法,其特征在于, 所述接入网中的缓存服务器的地址为公有地址。
11、 根据权利要求 1至 8中任意一项所述的内容分发的方法,其特征在于, 所述方法还包括:所述接入网中的缓存服务器接收所述用户设备发送的业务请 求后,检测是否储存有所述用户设备请求的所述业务数据。
12、 一种内容分发的装置,其特征在于,位于接入网中 ,包括:
接收单元,用于接收用户设备发送的业务请求,所述业务请求中包含所述 用户设备请求的业务数据所在的内容服务器的地址;
缓存单元,用于储存业务数据;
发送单元,用于若所述缓存单元中储存有所述用户设备请求的业务数据, 则通过接入网设备将所述缓存单元储存的用户设备请求的业务数据发送给所述 用户设备,并将所述接收单元接收的业务请求中的所述内容服务器的地址修改 为所述内容分发的装置的地址,并将修改后的所述业务请求经所述接入网设备 发送到核心网设备;
所述接收单元还用于接收所述核心网设备根据所述修改后的业务请求中携
17 带的所述内容分发的装置的地址,路由至该内容分发的装置的所述修改后的业 务请求;
所述发送单元还用于通过因特网、 所述核心网设备、 所述接入网设备将所 述缓存单元储存的用户设备请求的业务数据发送到所述内容分发的装置;
处理单元,用于丟弃所述发送单元发送来的所述业务数据。
13、 根据权利要求 12所述的内容分发的装置,其特征在于,所述发送单元 包括:
第一模块,用于若所述缓存单元中储存有所述用户设备请求的业务数据, 则通过接入网设备将所述缓存单元储存的用户设备请求的业务数据发送给所述 用户设备;
第二模块,用于若所述缓存单元中储存有所述用户设备请求的业务数据, 将所述接收单元接收的业务请求中的所述内容服务器的地址修改为所述内容分 发的装置的地址,并将修改后的所述业务请求经所述接入网设备发送到所述核 心网设备;和
第三模块,用于若所述缓存单元中储存有所述用户设备请求的业务数据, 通过所述内容分发的装置、 所述因特网、 所述核心网设备、 所述接入网设备与 所述内容分发的装置之间的连接,将所述缓存单元储存的用户设备请求的业务 数据发送到所述内容分发的装置。
14、 根据权利要求 13所述的内容分发的装置,其特征在于,所述连接为传 输控制协议 TCP连接或者自定义的连接。
15、 根据权利要求 13所述的内容分发的装置,其特征在于,所述接收单元 接收所述核心网设备路由至该内容分发的装置的所述修改后的业务请求之后, 所述第三模块还用于通过所述内容分发的装置、 所述因特网、 所述核心网设备、 所述接入网设备与所述内容分发的装置之间的连接,将业务请求响应发送到所 述内容分发的装置。
16、 根据权利要求 12所述的内容分发的装置,其特征在于,所述发送单元 包括:
第一模块,用于若所述缓存单元中储存有所述用户设备请求的业务数据, 则通过接入网设备将所述缓存单元储存的用户设备请求的业务数据发送给所述 用户设备;
第二模块,用于若所述缓存单元中储存有所述用户设备请求的业务数据,
18
将所述接收单元接收的业务请求中的所述内容服务器的地址修改为所述内容分 发的装置的地址,并将修改后的所述业务请求经所述接入网设备发送到所述核 心网设备;和
第四模块,用于若所述缓存单元中储存有所述用户设备请求的业务数据, 复制所述第一模块发送给所述用户设备的业务数据,并通过因特网、 所述核心 网设备、 所述接入网设备将所述复制的业务数据发送到所述内容分发的装置。
17、 根据权利要求 16所述的内容分发的装置,其特征在于,所述接收单元 接收所述核心网设备路由至该内容分发的装置的所述修改后的业务请求之后, 所述处理单元还用于丟弃所述接收的修改后的业务请求。
18、 根据权利要求 16所述的内容分发的装置,其特征在于,所述第一模块 还用于在通过接入网设备将所述缓存单元储存的业务数据发送给所述用户设备 之前,通过所述接入网设备向所述用户设备发送业务请求响应;所述第四模块 还用于复制发送给所述用户设备的业务请求响应,并通过因特网、 所述核心网 设备、 所述接入网设备将所述复制的业务请求响应发送到所述内容分发的装 置;所述处理单元还用于丟弃所述复制的业务请求响应。
19、 根据权利要求 12至 18中任一项所述的内容分发的装置,所述内容分 发的装置位于所述接入网设备中。
20、 根据权利要求 12至 18中任一项所述的内容分发的装置,所述内容分 发的装置的地址为公有地址。
21、 一种接入网设备,其特征在于,包括如权利要求 12至 20中任意一项 所述的内容分发的装置。
19
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