WO2013189044A1 - 一种识别网络共享行为的方法、节点、移动终端及系统 - Google Patents

一种识别网络共享行为的方法、节点、移动终端及系统 Download PDF

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Publication number
WO2013189044A1
WO2013189044A1 PCT/CN2012/077227 CN2012077227W WO2013189044A1 WO 2013189044 A1 WO2013189044 A1 WO 2013189044A1 CN 2012077227 W CN2012077227 W CN 2012077227W WO 2013189044 A1 WO2013189044 A1 WO 2013189044A1
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WO
WIPO (PCT)
Prior art keywords
ggsn
mobile terminal
packet
ttl value
network sharing
Prior art date
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PCT/CN2012/077227
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English (en)
French (fr)
Inventor
靳涛
席国宝
何亮
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 CN201610644865.0A priority Critical patent/CN106302423B/zh
Priority to RU2015101484/08A priority patent/RU2598581C2/ru
Priority to EP15200461.0A priority patent/EP3059902B1/en
Priority to PCT/CN2012/077227 priority patent/WO2013189044A1/zh
Priority to CN201280000638.4A priority patent/CN102870445B/zh
Priority to KR1020157000975A priority patent/KR101621346B1/ko
Priority to EP12879501.0A priority patent/EP2852096B1/en
Publication of WO2013189044A1 publication Critical patent/WO2013189044A1/zh
Priority to US14/574,029 priority patent/US10070374B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0893—Assignment of logical groups to network elements
    • 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
    • H04L67/30—Profiles
    • H04L67/303—Terminal profiles
    • 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
    • H04L69/22—Parsing or analysis of headers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20—Transfer of user or subscriber data
    • H04W8/205—Transfer to or from user equipment or user record carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/618—Details of network addresses
    • H04L2101/654—International mobile subscriber identity [IMSI] numbers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16—Gateway arrangements

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, a node, a mobile terminal, and a system for identifying a network sharing behavior. Background technique
  • the Tethering behavior refers to the connection of the device to be connected to the mobile terminal through WiFi (Wireless Fidelity), Bluetooth or USB (Universal Serial Bus), and the mobile network sharing through the mobile terminal. behavior.
  • the devices to be networked include, but are not limited to, computers, tablets, mobile terminals, and the like. Since computers, tablets, etc. interact with mobile networks in different ways than mobile terminals and mobile networks, it is possible to conduct more P2P.
  • the first solution is when the IP (Internet Protocol) message is a Get request message, and the GGSN (Gateway General Packet Radio Service Support Node) The support node performs DPI (Deep Packet Inspection) analysis on the received Get message, and the UA is included in the received packet.
  • IP Internet Protocol
  • GGSN Gateway General Packet Radio Service Support Node
  • DPI Deep Packet Inspection
  • the (User-Agent, User Agent) field is used for judgment.
  • the UA is a special string header included in the Get message, and stores the operating system and version used by the IP packet sending device, the browser and version, the browser rendering engine, the browser language, and the browser plug-in. .
  • the GGSN can determine the type of the IP packet sending device to access the Internet based on the operating system information of the UA, and distinguish whether the IP packet sending device accesses the Internet through the network sharing behavior.
  • the second solution is to set a separate APN (Access Point Name) for the device to be connected to the network sharing function, which is independent of the mobile terminal's own APN.
  • the GGSN can identify the network sharing behavior by identifying the APN.
  • the GGSN cannot obtain the UA field in the Get message, and thus the network sharing behavior cannot be recognized; if the mobile terminal performs the Get" service, most mobile terminals
  • the browser can set the UA by itself, and the user can also change the UA, which is easy to cause
  • the GGSN incorrectly identifies the network sharing behavior.
  • the iOS (iPhone Operation System) system supports the independent APN for the network sharing function. The operator can only configure the APN with the network sharing function in the mobile terminal in cooperation with the Apple. 4 is narrow. Summary of the invention
  • Embodiments of the present invention provide a method, a node, a mobile terminal, and a system for identifying a network sharing behavior, so as to improve the accuracy of identifying a network sharing behavior, and expand a range of scenarios applicable to identifying a network sharing behavior.
  • the technical solution is as follows:
  • a method for identifying a network sharing behavior comprising:
  • the gateway general packet radio service supporting node GGSN receives the Internet Protocol IP text sent by the device to be connected and forwarded by the mobile terminal;
  • determining whether the obtained TTL value is different from the specified TTL value includes: further, the gateway general packet radio service supporting node GGSN receives the Internet Protocol IP file sent by the network device and forwarded by the mobile terminal, Includes:
  • an activated packet data protocol PDP request that is sent by the mobile terminal and includes at least an International Mobile Subscriber Identity (IMS) information;
  • IMS International Mobile Subscriber Identity
  • An activation success notification message is sent to the mobile terminal.
  • the method before receiving the policy and the rule that the PCRF sends the user subscription information corresponding to the IMSI information, the method further includes:
  • the PCRF determines, according to the IMSI information, whether the user has subscribed to the network shared service; if yes, the policy and rules for signing the network shared service are sent to the GGSN;
  • the method further includes: If the GGSN has received the notification message sent by the PCRF, and the notification message carries an event triggering parameter indicating that the GGSN performs the network sharing behavior reporting, the network sharing behavior is reported to the PCRF, so that the PCRF notification is sent.
  • the mobile terminal, the device to be connected is using a network sharing service.
  • reporting the network sharing behavior to the PCRF including:
  • the GGSN sends a status parameter added to the Gx interface to the PCRF, where the status parameter is used to indicate the status of the network sharing behavior.
  • the GGSN After the network sharing behavior is determined, the GGSN processes the IP packet according to a preset policy and rule; or
  • the GGSN processes the IP packet according to policies and rules delivered by the PCRF.
  • a method for identifying a network sharing behavior includes: receiving, by a mobile terminal, an Internet Protocol IP packet sent by a device to be networked;
  • the GGSN forwards the IP packet including the modified TTL value to the GGSN, so that the GGSN identifies the network sharing behavior of the device to be connected according to the modified TTL value.
  • the modifying the TTL value of the time-to-live in the IP packet includes:
  • the mobile terminal decrements the TTL value in the IP packet by one.
  • the mobile terminal before the mobile terminal receives the Internet Protocol IP packet sent by the device to be connected, the mobile terminal further includes:
  • an activation packet data protocol PDP request including at least an international mobile subscriber identity (IMSI) information to the GGSN, so that the GGSN sends the IMSI information to a policy and charging rule function PCRF;
  • IMSI international mobile subscriber identity
  • the GGSN After receiving the policy and the rule that the PCRF sends the user subscription information corresponding to the IMSI information, the GGSN receives the activation success notification message sent by the GGSN.
  • GGSN gateway general packet radio service support node
  • a first receiving module configured to receive an Internet Protocol IP packet sent by the device to be connected and forwarded by the mobile terminal
  • An obtaining module configured to obtain a time-to-live TTL value in the IP packet
  • a determining module configured to determine whether the obtained TTL value is different from a specified TTL value
  • an identifying module configured to determine, if the TTL value obtained by the determining module is different from the specified TTL value, determining that the network sharing behavior occurs on the device to be connected.
  • the determining module is configured to determine whether a TTL value in the IP packet is smaller than a specified TTL value.
  • the GGSN further includes:
  • a second receiving module configured to receive an activation packet data protocol PDP request that is sent by the mobile terminal and includes at least an International Mobile Subscriber Identity (IMS) information;
  • IMS International Mobile Subscriber Identity
  • a first sending module configured to send the IMSI information to the policy and charging rule function PCRF
  • a third receiving module configured to receive a policy and a rule that are sent by the PCRF according to the user subscription information corresponding to the IMSI information
  • a second sending module configured to send an activation success notification message to the mobile terminal.
  • the GGSN further includes:
  • the reporting module is configured to report the network sharing behavior to the PCRF, if the GGSN has received the notification message sent by the PCRF, and the notification message carries an event triggering parameter indicating that the GGSN performs the network sharing behavior, And causing the PCRF to notify the mobile terminal that the device to be connected is using a network shared service.
  • the reporting module is configured to send a status parameter added to the Gx interface to the PCRF, where the status parameter is used to indicate a status of the network sharing behavior.
  • the GGSN further includes:
  • the first processing module is configured to process the IP packet according to a preset policy and a rule; or the second processing module is configured to process the IP packet according to a policy and a rule delivered by the PCRF.
  • a mobile terminal is provided, where the mobile terminal includes:
  • a fourth receiving module configured to receive an Internet Protocol IP packet sent by the device to be connected
  • a modification module configured to modify a time-to-live TTL value in the IP packet.
  • a forwarding module configured to forward, to the gateway general packet radio service supporting node, the GGSN, the IP packet that includes the modified TTL value, so that the GGSN identifies the network sharing behavior of the device to be connected according to the modified TTL value.
  • the modifying module is configured to decrement the TTL value in the IP packet by one.
  • the mobile terminal further includes:
  • a third sending module configured to send, to the GGSN, an activation packet data protocol PDP request that includes at least an International Mobile Subscriber Identity (IMSI) information, so that the GGSN sends the IMSI information to a policy and charging rule function PCRF;
  • a fifth receiving module configured to: after the GGSN receives the policy and the rule sent by the PCRF according to the user subscription information corresponding to the IMSI information, receive an activation success notification message sent by the GGSN.
  • IMSI International Mobile Subscriber Identity
  • a system for identifying a network sharing behavior comprising: a gateway general packet radio service support node GGSN as described above and a mobile terminal as described above.
  • the TTL value in the IP packet is obtained by receiving the IP packet sent by the device to be connected and forwarded by the mobile terminal, and determining whether the obtained TTL value is different from the specified TTL value, and if yes, determining the mobile terminal
  • the TTL value is modified to further determine that the IP packet is forwarded by the mobile terminal, thereby determining that the network sharing behavior occurs on the device to be connected, and each IP packet has a TTL value, and the network share is identified according to the modified TTL value.
  • the behavior method avoids the problem that the network sharing behavior cannot be judged when there is no UA field in the Get message of the prior art, and improves the accuracy of identifying the network sharing behavior; in addition, the operating system corresponds to a fixed TTL value, according to the modified The method of identifying the network sharing behavior by the TTL value is applicable to any operating system, and expands the range of scenarios to which the network sharing behavior is recognized.
  • FIG. 1 is a flowchart of a method for identifying a network sharing behavior according to Embodiment 1 of the present invention
  • FIG. 2 is a flowchart of a method for identifying a network sharing behavior according to Embodiment 2 of the present invention
  • FIG. 3 is a third embodiment of the present invention
  • FIG. 4 is a flowchart of a method for identifying a network sharing behavior according to Embodiment 4 of the present invention
  • FIG. 5 is a flowchart for identifying a network sharing behavior according to Embodiment 4 of the present invention
  • FIG. 6 is a schematic structural diagram of a gateway general packet radio service supporting node according to Embodiment 5 of the present invention.
  • FIG. 7 is a schematic structural diagram of a gateway general packet radio service support node according to Embodiment 6 of the present invention
  • FIG. 8 is a schematic structural diagram of a mobile terminal according to Embodiment 7 of the present invention
  • FIG. 8 is a schematic structural diagram of a mobile terminal according to Embodiment 7 of the present invention
  • FIG. 9 is a schematic structural diagram of a mobile terminal according to Embodiment 8 of the present invention.
  • FIG. 10 is a schematic structural diagram of a system for identifying a network sharing behavior according to Embodiment 9 of the present invention. detailed description
  • the embodiment relates to the behavior of the device to be connected to the Internet through the mobile network of the mobile terminal, and the mobile network may include, but is not limited to, a GPRS (General Packet Radio Service) network, 3G (3rd-generation, third generation) Mobile communication technology) Network, WiFi network and WiMax (Worldwide Interoperability for Microwave Access) network, etc.
  • GPRS General Packet Radio Service
  • 3G Third Generation, third generation
  • WiFi network Worldwide Interoperability for Microwave Access
  • WiMax Worldwide Interoperability for Microwave Access
  • this embodiment provides a method for identifying a network sharing behavior, and the method flow is as follows:
  • the GGSN receives an IP packet sent by the device to be connected and forwarded by the mobile terminal.
  • the GGSN is a gateway GPRS support node with network-controlled information shielding function. It can select IP packets that can enter the GPRS network to ensure the security of the GPRS network.
  • the device to be connected refers to a device that performs online behavior through the GPRS network of the mobile terminal, and may include, but is not limited to, a computer, a tablet, and a mobile terminal.
  • IP packets are data units that are exchanged and transmitted in the Internet Protocol.
  • the TTL is a flag in the header of an IP packet. It is used to identify the number of network segments allowed to pass before IP packets are discarded.
  • the TTL value is generally related to the operating system and is in the uplink IP packet of the device to be connected.
  • the TTL value is generally fixed.
  • the network sharing behavior refers to the behavior of the networked device connected to the mobile terminal through WiFi, Bluetooth or USB, and the mobile network sharing through the mobile terminal.
  • determining whether the obtained TTL value is different from the specified TTL value may include: The GGSN determines whether the TTL value in the IP packet is one less than the specified TTL value. Further, before the GGSN receives the IP packet sent by the device to be connected and forwarded by the mobile terminal, the GGSN may further include:
  • the GGSN receives an activated PDP (Packet Data Protocol) request that is sent by the mobile terminal and includes at least an IMSI (International Mobile Subscriber Identification Number) information;
  • PDP Packet Data Protocol
  • IMSI International Mobile Subscriber Identification Number
  • the method may further include:
  • the PCRF determines, according to the IMSI information, whether the user subscribes to the network sharing service; if yes, the policy and rules for signing the network sharing service are sent to the GGSN;
  • the method may further include: if the GGSN has received the notification message sent by the PCRF, and the notification message carries an event triggering parameter indicating that the GGSN performs the network sharing behavior reporting, The PCRF reports the network sharing behavior, so that the PCRF notifies the mobile terminal that the networked device is using the network sharing service.
  • reporting the network sharing behavior to the PCRF may include:
  • the GGSN sends a new status parameter to the PCRF on the Gx interface, which is used to indicate the status of the network sharing behavior.
  • the method may further include:
  • the GGSN processes the IP packet according to a preset policy and rule; or
  • the GGSN processes the IP packet according to policies and rules delivered by the PCRF.
  • the method provided in this embodiment obtains the TTL value in the IP packet by receiving the IP packet sent by the device to be connected and forwarded by the mobile terminal, and determines whether the obtained TTL value is different from the specified TTL value. If yes, determining that the mobile terminal modifies the TTL value, further determining that the IP packet is forwarded by the mobile terminal, thereby determining that the network sharing behavior occurs on the device to be connected, and each IP packet has a TTL value, according to The method for identifying the network sharing behavior by using the modified TTL value avoids the problem that the network sharing behavior cannot be judged when there is no UA field in the Get message of the prior art, and the problem is improved.
  • Identify the accuracy of the network sharing behavior in addition, the operating system corresponds to a fixed TTL value, and the method of identifying the network sharing behavior according to the modified TTL value is applicable to any operating system, and the scenario for identifying the network sharing behavior is expanded. range.
  • the notification message sent by the PCRF determines whether the notification message sent by the PCRF has been received, and the notification message carries an event triggering parameter indicating that the GGSN performs the network sharing behavior reporting, if yes, reporting the network sharing behavior to the PCRF, so that the PCRF can Notifying the mobile terminal that the device to be networked is using the network sharing service, the user of the mobile terminal can control the network sharing behavior, thereby reducing the use of the network sharing service caused by the misoperation, thereby making the identification network sharing behavior more humanized.
  • Embodiment 2 Embodiment 2
  • this embodiment provides a method for identifying a network sharing behavior, and the method flow is as follows:
  • the mobile terminal receives an IP packet sent by the device to be connected.
  • the mobile terminal After receiving the IP packet sent by the device to be networked, the mobile terminal obtains the TTL value in the IP packet, and modifies the obtained TTL value to identify that the IP packet is sent by the device to be connected, thereby distinguishing the mobile device from the mobile terminal. IP packets sent by itself to the GPRS network.
  • modifying the TTL value in the IP packet may include:
  • the mobile terminal decrements the TTL value in the IP text by one.
  • the mobile terminal may further include: the mobile terminal sending an activation PDP request that includes at least the IMSI information to the GGSN, so that the GGSN sends the IMSI information to the PCRF;
  • the GGSN After receiving the policy and rules sent by the PCRF according to the user subscription information corresponding to the IMSI information, the GGSN receives the activation success notification message sent by the GGSN.
  • the method provided in this embodiment by receiving the IP packet sent by the device to be networked, modifying the TTL value in the IP packet, and forwarding the IP packet containing the modified TTL value to the GGSN, so that the GGSN can be modified according to the GGSN.
  • the TTL value determines that the IP packet is forwarded by the mobile terminal, thereby identifying the network sharing behavior of the device to be networked, and each IP packet has a TTL value, and the method for identifying the network sharing behavior according to the modified TTL value is avoided.
  • the problem of disconnecting the network sharing behavior improves the accuracy of identifying the network sharing behavior; in addition, the operating system corresponds to a fixed TTL value, and the method of identifying the network sharing behavior according to the modified TTL value is applicable to any operating system, and also expands the pair.
  • this embodiment provides a method for identifying a network sharing behavior, and processes an IP packet by using a policy and a rule preset by the GGSN.
  • the method flow is as follows:
  • the mobile terminal receives the IP packet sent by the device to be connected, and modifies the TTL value in the IP packet.
  • the device to be connected refers to a device that performs the online behavior through the GPRS network of the mobile terminal, and may include, but is not limited to, a computer, a tablet computer, a mobile terminal, and the like.
  • the device to be connected may be connected to the mobile terminal by means of WiFi, Bluetooth or USB, and send an IP message to the mobile terminal, and the mobile terminal forwards the IP file to the GPRS network, thereby implementing the Internet access through the GPRS network of the mobile terminal. behavior.
  • the IP message is a data unit exchanged and transmitted in the Internet Protocol.
  • the TTL is a flag in the header of an IP packet. It is used to identify the number of network segments allowed to pass before IP packets are discarded.
  • the TTL value is generally related to the operating system, and the TTL value in the uplink IP packet of the device to be connected is generally fixed. Table 1 shows the TTL values of common operating systems, such as Linux with a TTL of 64, Apple iOS (Apple OS) with a TTL of 64, Windows Phone with a TTL of 128, and so on.
  • the mobile terminal after receiving the IP packet sent by the device to be networked, the mobile terminal obtains the TTL value in the IP packet, and modifies the obtained TTL value to identify the IP packet from the device to be connected.
  • the transmission is different from the IP packet sent by the mobile terminal itself to the GPRS network.
  • modifying the TTL value in the IP packet may be specifically: the mobile terminal decrements the TTL value in the IP packet by one. For example, if Windows Phone is connected to Apple iOS and the network sharing behavior is implemented through Apple iOS, after receiving the IP packet sent by Windows Phone, Apple iOS obtains the TTL value of 128 in the IP text, and subtracts 128 from 1 to get 127, replacing 127 with 127. The original TTL value is 128.
  • the mobile terminal forwards the IP packet that includes the modified TTL value to the GGSN.
  • the GGSN is a gateway GPRS support node, which has a network-controlled information shielding function, and can select an IP packet that can enter the GPRS network to ensure the security of the GPRS network.
  • the GGSN in this embodiment also has a charging information collecting function, which is capable of collecting charging information related to the use of the GPRS network resource by each mobile terminal.
  • the GGSN receives the IP packet forwarded by the mobile terminal.
  • the GGSN obtains the TTL value in the IP packet, and determines whether the obtained TTL value is different from the specified TTL value. If yes, execute 305; otherwise, the process ends.
  • the specified TTL value is a fixed TTL value of the operating system.
  • the TTL value specified in this embodiment may include, but is not limited to, 128, 64, or 69, etc., and may be sent to the mobile terminal by the device to be connected.
  • the mobile terminal informs the GGSN.
  • the GGSN obtains the TTL value in the received IP packet, and determines whether the obtained TTL value is different from the specified TTL value.
  • the determining whether the obtained TTL value is different from the specified TTL value may be:
  • the GGSN determines whether the TTL value in the IP packet is smaller than the specified TTL value.
  • the TTL value is smaller than the specified TTL value, it is determined that the IP file is sent by the device to be connected and forwarded by the mobile terminal, thereby determining that the network sharing behavior occurs on the device to be connected; if the TTL value and the specified TTL value If the IP packets are equal, the IP packet is generated and sent by the mobile terminal, and the mobile terminal performs an autonomous online behavior, thereby determining that the network sharing behavior does not occur on the device to be connected.
  • the above-mentioned Windows Phone is connected to Apple iOS, and the network sharing behavior is implemented by Apple iOS as an example. If the Apple iOS forwards the IP packet of the Windows Phone, the TTL value of the IP packet obtained by the GGSN is 127, due to the specified The TTL value is 128, 64, or 69, which is different from 127.
  • the GGSN determines the network sharing behavior of the Windows Phone. If the Apple iOS generates and sends an IP packet, the TTL value of the IP packet obtained by the GGSN is 64. The TTL value contains 64, and the GGSN determines that the Windows Phone does not have a network sharing behavior, and the Internet iOS behavior occurs by Apple iOS.
  • the GGSN determines that the network sharing behavior occurs on the device to be connected, and processes the IP document according to preset policies and rules.
  • the GGSN reads the preset policies and rules, and processes the IP documents.
  • the policies and rules are locally set in advance by the GGSN. Specifically, the GGSN sets different policies and rules for the services provided by the operator.
  • the GGSN determines that the network sharing behavior occurs on the device to be connected, the GGSN obtains the service that the user subscribes to, and obtains the policies and rules corresponding to the service, according to the policy. And rules handle IP text. Or, the IP packet is blocked, or the IP packet is charged according to the charging rule of the GGSN.
  • the method provided in this embodiment obtains the TTL value in the IP packet by receiving the IP packet sent by the device to be connected and forwarded by the mobile terminal, and determines whether the obtained TTL value is different from the specified TTL value. If yes, determining that the mobile terminal modifies the TTL value, further determining that the IP packet is forwarded by the mobile terminal, thereby determining that the network sharing behavior occurs on the device to be connected, and each IP packet has a TTL value, according to The method for identifying the network sharing behavior of the modified TTL value avoids the problem that the network sharing behavior cannot be judged when there is no UA field in the Get message of the prior art, and improves the accuracy of identifying the network sharing behavior.
  • the operating system corresponds to the fixed The TTL value
  • the method of identifying the network sharing behavior according to the modified TTL value is applicable to any operating system, and expands the range of scenarios to which the network sharing behavior is recognized.
  • this embodiment provides a method for identifying a network sharing behavior, and processes an IP packet by using a policy and a rule delivered by the PCRF.
  • the method flow is as follows:
  • the mobile terminal sends an activation PDP request containing at least IMSI information to the GGSN.
  • the IMSI is an international mobile subscriber identity, which uniquely identifies a mobile subscriber.
  • the mobile terminal attaches to the GPRS network through the IMSI information, it transmits an activation PDP request containing at least IMSI information to the GGSN to establish a data channel between the mobile terminal and the GPRS network through the PDP activation process.
  • the PDP is a packet data protocol, and is a network protocol used by an external PDN (Public Data Network) network and a GPRS interface.
  • the GGSN receives an activated PDP request that is sent by the mobile terminal and includes at least the IMSI information, and sends the IMSI information to the PCRF.
  • the GGSN in this embodiment does not have a charging function. Therefore, a PCRF needs to be deployed in the network to perform charging for the GPRS network resources used by the mobile terminal.
  • the PCRF is configured to formulate policy rules according to service information, and may include, but is not limited to, data flow detection, threshold control, QoS (Quality of Service) control, flow-based charging, and the like.
  • a network may include multiple PCRFs, and each PCRF may formulate corresponding policy rules and control the mobile terminals under the control according to the policy rules.
  • the PCRF determines, according to the IMSI information, whether the user subscribes to the network shared service, and if so, executes 404; otherwise, performs 405.
  • the user subscription information refers to information that the user subscribes to the service, and the service may include, but is not limited to, a GPRS mobile data service, a network sharing service, a short message service, and the like.
  • the user subscription information can be uniquely identified by the IMSI information, and the PCRF can obtain the corresponding user subscription information according to the IMSI information, and determine whether the user subscribes to the network sharing service according to the user subscription information.
  • the PCRF sends a policy and a rule for signing the network shared service to the GGSN, and executes 406.
  • the policies and rules for signing a network shared service are policies and rules specified by the operator for users who have subscribed to the network shared service. For example, the operator sets a network sharing service with 5 yuan of 30Mbit GPRS traffic, and charges 1 yuan for each excess 1Mbit GPRS traffic; or 20 yuan for 150Mbit GPRS traffic network sharing service, and charges 2 yuan for each excess 1Mbit GPRS traffic. Etc., this embodiment is not limited.
  • the PCRF sends a policy and a rule for not signing the network shared service to the GGSN.
  • the policies and rules for the unsigned network shared service are policies and rules specified by the operator for users who have not subscribed to the network shared service. For example, the operator sets a fee of 1 yuan per 1 Mbit GPRS traffic; or a fee of 2 yuan per 1 Mbit GPRS traffic, etc., which is not limited in this embodiment.
  • the GGSN receives a policy and a rule that are sent by the PCRF according to the user subscription information corresponding to the IMSI information.
  • the GGSN stores the received policies and rules to control the network sharing behavior according to the policies and rules.
  • the GGSN sends an activation success notification message to the mobile terminal.
  • the notification message indicates that the data channel between the mobile terminal and the GPRS network is established, and the mobile terminal can enable the network sharing function to receive the IP packet sent by the device to be connected; if the mobile terminal does not receive the GGSN transmission within the specified time
  • the activation success notification message indicates that the PDP activation process between the mobile terminal and the GPRS network fails, and the mobile terminal cannot connect to the GPRS network, that is, the mobile terminal cannot enable the network sharing function.
  • the mobile terminal modifies the TTL value in the IP packet.
  • the mobile terminal after receiving the IP packet sent by the device to be networked, the mobile terminal obtains the TTL value in the IP packet, and modifies the obtained TTL value to identify that the IP packet is sent by the device to be connected, thereby distinguishing The IP packet sent by the mobile terminal itself to the GPRS network.
  • modifying the TTL value in the IP packet may be specifically: the mobile terminal decrements the TTL value in the IP packet by one.
  • the mobile terminal forwards the IP packet that includes the modified TTL value to the GGSN.
  • the GGSN receives the IP packet forwarded by the mobile terminal.
  • the GGSN obtains the TTL value in the IP packet, and determines whether the obtained TTL value is different from the specified TTL value. If yes, execute 413; otherwise, the process ends.
  • step 304 it is determined that the obtained TTL value is different from the specified TTL value.
  • the GGSN determines the network sharing behavior of the device to be connected, and processes the IP packet according to the policy and rules delivered by the PCRF.
  • the GGSN reads the policies and rules delivered by the PCRF, and processes the IP packets.
  • the policies and rules are preset in the PCRF. Specifically, the PCRF sets different policies and rules for the service provided by the operator, and sends the policy to the GGSN, and the GGSN processes the IP packet.
  • the processing of the IP address by the GGSN may include, but is not limited to: discarding the IP packet, or blocking the IP packet, or performing IP packet according to a charging rule sent by the PCRF. Do billing and more.
  • the method may further include:
  • the GGSN has received the notification message sent by the PCRF, and the notification message carries the event triggering parameter indicating that the GGSN performs the network sharing behavior reporting, and reports the network sharing behavior to the PCRF, so that the PCRF notifies the mobile terminal that the The device to be networked is using the network sharing service.
  • the notification message is used to notify the GGSN to perform network sharing behavior reporting, and For the CCA-I (Credit Control Answer-Initial), or other notification messages, this embodiment is not limited.
  • the event triggering parameter is used to indicate that the GGSN performs the network sharing behavior reporting, and specifically, when the event that the GGSN detects the network sharing behavior occurs, the event is reported to be reported to the PCRF.
  • the PCRF can extend the value of the Event-Trigger (Event Trigger Parameter) on the Gx interface, and add a Tethering_REPORT that is used to notify the GGSN to report the network sharing behavior as an Event-Trigger value, as follows:
  • Event-Trigger >:: ⁇ AVP Header: AVP Code 1006, M-Bit set, V-Bit set, Vendor-ID 10415 >
  • Event-Trigger Tethering_REPORT ( 101 )
  • the reporting the network sharing behavior to the PCRF may include:
  • the GGSN sends a new status parameter to the PCRF on the Gx interface, which is used to indicate the status of the network sharing behavior.
  • the newly added state parameter on the Gx interface may be an X-HW-Event-Status, and the structure of the X-HW-Event-Status is as follows:
  • X-HW-Event-Status > :: ⁇ AVP Header: AVP Code 2018, V-Bit set, Vendor-ID 2011 >
  • the PCRF may notify the mobile terminal by email or short message, and the network-connected device is currently using the network sharing service.
  • the PCRF may also notify the mobile terminal by other means.
  • the device to be networked is currently using the network sharing service, which is not limited in this embodiment. Referring to FIG. 5, a schematic diagram of a specific application process of the foregoing method provided by this embodiment is provided. The process of identifying a network sharing behavior is as follows:
  • the mobile terminal sends an activation PDP request to the PCEF (Policy and Charging Enforcement Function).
  • PCEF Policy and Charging Enforcement Function
  • the PCEF mainly includes the detection of the service data flow, the policy execution, and the flow-based charging function, which are located in the GGSN.
  • the PCEF reports the IMSI information to the PCRF through a CCR-I (Credit Control Request-Initial) message.
  • CCR-I Clear Control Request-Initial
  • the PCRF sends policies and rules to the PCEF through the CCA-I message.
  • the PCRF sends a notification message to the GGSN through the CCA-I message, if the PCRF sends the policy and the rule of the unshared network sharing behavior, and the PCRF is required to notify the mobile terminal.
  • the PCEF sends an activation success notification message to the mobile terminal.
  • the PCEF receives the IP packet sent by the mobile terminal.
  • the PCEF reports the network sharing behavior to the PCRF through a CCR-U (Credit Control Request-Update) message.
  • the PCRF sends a response message to the PCEF through a CCA-U (Credit Control Answer-Update) message.
  • CCA-U Current Control Answer-Update
  • the PCEF processes the IP packet according to the policies and rules delivered by the PCRF.
  • the method provided in this embodiment obtains the TTL value in the IP packet by receiving the IP packet sent by the device to be connected and forwarded by the mobile terminal, and determines whether the obtained TTL value is different from the specified TTL value. If yes, determining that the mobile terminal modifies the TTL value, further determining that the IP packet is forwarded by the mobile terminal, thereby determining that the network sharing behavior occurs on the device to be connected, and each IP packet has a TTL value, according to The method for identifying the network sharing behavior of the modified TTL value avoids the problem that the network sharing behavior cannot be judged when there is no UA field in the Get message of the prior art, and improves the accuracy of identifying the network sharing behavior.
  • the operating system corresponds to the fixed The TTL value
  • the method of identifying the network sharing behavior according to the modified TTL value is applicable to any operating system, and expands the range of scenarios to which the network sharing behavior is recognized.
  • the notification message sent by the PCRF determines whether the notification message sent by the PCRF has been received, and the notification message carries an event triggering parameter indicating that the GGSN performs the network sharing behavior reporting, if yes, reporting the network sharing behavior to the PCRF, so that the PCRF can Notifying the mobile terminal that the device to be networked is
  • the user of the mobile terminal can control the network sharing behavior, thereby reducing the use of the network sharing service caused by the misoperation, thereby making the identification network sharing behavior more humanized.
  • this embodiment provides a gateway general packet radio service support node GGSN, where the GGSN may include:
  • the first receiving module 601 is configured to receive an IP packet that is sent by the device to be connected and forwarded by the mobile terminal.
  • the obtaining module 602 is configured to obtain a TTL value in the IP packet.
  • the determining module 603 is configured to determine whether the obtained TTL value is different from the specified TTL value.
  • the identifying module 604 is configured to determine, if the determining module 603 determines that the obtained TTL value is different from the specified TTL value, determining the device to be connected. Network sharing behavior occurs.
  • the identifying module 604 determines that the IP packet is sent by the device to be connected and forwarded by the mobile terminal, thereby determining that the network sharing behavior occurs on the device to be connected. If the determining module 603 determines that the TTL value is equal to the specified TTL value, the identifying module 604 determines that the IP packet is generated and sent by the mobile terminal, and the mobile terminal generates an autonomous online behavior, thereby determining that the network to be connected to the networked device does not occur. behavior.
  • the foregoing GGSN provided in this embodiment may perform the method for identifying the network sharing behavior provided in any one of the foregoing method embodiments. For details, refer to the description in the method embodiment, and details are not described herein.
  • the GGSN obtained in this embodiment obtains the TTL value in the IP packet by receiving the IP packet sent by the device to be connected and forwarded by the mobile terminal, and determines whether the obtained TTL value is different from the specified TTL value. If yes, determining that the mobile terminal modifies the TTL value, further determining that the IP packet is forwarded by the mobile terminal, thereby determining that the network sharing behavior occurs on the device to be connected, and each IP packet has a TTL value, according to The method for identifying the network sharing behavior of the modified TTL value avoids the problem that the network sharing behavior cannot be judged when there is no UA field in the Get message of the prior art, and improves the accuracy of identifying the network sharing behavior.
  • the operating system corresponds to the fixed The TTL value
  • the method of identifying the network sharing behavior according to the modified TTL value is applicable to any operating system, and expands the range of scenarios to which the network sharing behavior is recognized.
  • this embodiment provides a gateway general packet radio service supporting node GGSN.
  • the GGSN in this embodiment is different from the GGSN provided in the fifth embodiment in that: the TTL value is one.
  • the GGSN may further include:
  • the second receiving module 605 is configured to receive an active PDP request that is sent by the mobile terminal and that includes at least IMSI information.
  • the first sending module 606 is configured to send the IMSI information to the PCRF.
  • the third receiving module 607 is configured to receive a policy and a rule that is sent by the PCRF according to the user subscription information corresponding to the IMSI information.
  • the second sending module 608 is configured to send an activation success notification message to the mobile terminal.
  • the GGSN may further include:
  • the reporting module 609 is configured to: if the GGSN has received the notification message sent by the PCRF, and the event message carries the event triggering parameter indicating that the GGSN performs the network sharing behavior, the network sharing behavior is reported to the PCRF, so that the PCRF notification is performed.
  • the mobile terminal, the device to be networked, is using a network sharing service.
  • the reporting module 609 is configured to send a status parameter added to the Gx interface to the PCRF, where the status parameter is used to indicate the status of the network sharing behavior.
  • the GGSN may further include:
  • the first processing module 610 is configured to process the IP packet according to a preset policy and a rule.
  • the second processing module 611 is configured to process the IP packet according to a policy and a rule delivered by the PCRF.
  • the foregoing GGSN provided in this embodiment may perform the method for identifying the network sharing behavior provided in any one of the foregoing method embodiments. For details, refer to the description in the method embodiment, and details are not described herein.
  • the GGSN provided in this embodiment obtains the TTL value in the IP packet by receiving the IP packet sent by the device to be connected and forwarded by the mobile terminal, and determines whether the obtained TTL value is different from the specified TTL value. If yes, determining that the mobile terminal modifies the TTL value, further determining that the IP packet is forwarded by the mobile terminal, thereby determining that the network sharing behavior occurs on the device to be connected, and each IP packet has a TTL value, according to The method for identifying the network sharing behavior of the modified TTL value avoids the problem that the network sharing behavior cannot be judged when there is no UA field in the Get message of the prior art, and improves the accuracy of identifying the network sharing behavior.
  • the operating system corresponds to the fixed The TTL value
  • the method of identifying the network sharing behavior according to the modified TTL value is applicable to any operating system, and expands the range of scenarios to which the network sharing behavior is recognized.
  • the notification message sent by the PCRF has been received, and the notification message carries an event triggering parameter indicating that the GGSN performs the network sharing behavior reporting, if yes, reporting the network sharing behavior to the PCRF, so that the PCRF can Notifying the mobile terminal that the device to be networked is using the network sharing service
  • the user of the mobile terminal can control the network sharing behavior, thereby reducing the use of the network sharing service caused by the misoperation, thereby making the identification network sharing behavior more humanized.
  • this embodiment provides a mobile terminal, where the mobile terminal includes:
  • a fourth receiving module 801 configured to receive an IP packet sent by the device to be connected
  • the modifying module 802 is configured to modify a TTL value in the IP packet.
  • the mobile terminal After receiving the IP packet sent by the device to be networked, the mobile terminal obtains the TTL value of the IP packet, and the modification module 802 modifies the obtained TTL value to identify that the IP packet is sent by the device to be connected. It is different from the IP packet sent by the mobile terminal itself to the GPRS network.
  • the forwarding module 803 is configured to forward the IP packet that includes the modified TTL value to the GGSN, so that the GGSN identifies the network sharing behavior of the device to be connected according to the modified TTL value.
  • the foregoing mobile terminal provided in this embodiment may perform the method for identifying the network sharing behavior provided in any one of the foregoing method embodiments.
  • the foregoing mobile terminal provided in this embodiment may perform the method for identifying the network sharing behavior provided in any one of the foregoing method embodiments.
  • the mobile terminal by receiving the IP packet sent by the device to be networked, modifies the TTL value in the IP packet, and forwards the IP packet containing the modified TTL value to the GGSN, so as to be connected to the network device.
  • the network sharing behavior, and the TTL value in each IP packet avoids the problem that the network sharing behavior cannot be judged when there is no UA field in the Get message of the prior art.
  • the accuracy of identifying the network sharing behavior is improved; in addition, the operating system corresponds to a fixed TTL value, and the method for identifying the network sharing behavior according to the modified TTL value is applicable to any operating system, and the application for identifying the network sharing behavior is expanded.
  • the scope of the scene Example eight
  • this embodiment provides a mobile terminal.
  • the mobile terminal in this embodiment is different from the mobile terminal provided in Embodiment 7.
  • the modifying module 802 is configured to decrement the TTL value in the IP packet by one.
  • the mobile terminal may further include:
  • the third sending module 804 is configured to send, to the GGSN, an activated PDP request that includes at least IMSI information, so that the GGSN sends the IMSI information to the PCRF.
  • the fifth receiving module 805 is configured to receive an activation success notification message sent by the GGSN, after the GGSN receives the policy and the rule sent by the PCRF according to the user subscription information corresponding to the IMSI information.
  • the foregoing mobile terminal provided in this embodiment may perform the method for identifying the network sharing behavior provided in any one of the foregoing method embodiments.
  • the foregoing mobile terminal provided in this embodiment may perform the method for identifying the network sharing behavior provided in any one of the foregoing method embodiments.
  • the mobile terminal by receiving the IP packet sent by the device to be networked, modifies the TTL value in the IP packet, and forwards the IP packet containing the modified TTL value to the GGSN, so that the GGSN can be modified according to the GGSN.
  • the TTL value determines that the IP packet is forwarded by the mobile terminal, thereby identifying the network sharing behavior of the device to be networked, and each IP packet has a TTL value, and the method for identifying the network sharing behavior according to the modified TTL value is avoided.
  • the operating system corresponds to a fixed TTL value, and the network is identified according to the modified TTL value.
  • the method of sharing behavior applies to any operating system, extending the range of scenarios in which network sharing behavior is identified. Example nine
  • the present embodiment provides a system for identifying network sharing behavior, and the system may include: a gateway general packet radio service support node GGSN 1001 and a mobile terminal 1002.
  • the GGSN 1001 may be the GGSN provided in the foregoing Embodiment 5 or Embodiment 6.
  • the mobile terminal 1002 may be the mobile terminal provided in the foregoing Embodiment 7 or Embodiment 8.
  • the system for identifying the network sharing behavior provided in this embodiment may perform the method for identifying the network sharing behavior provided in the foregoing method embodiment. For details, refer to the description in the method embodiment, which is not described herein.
  • the system for identifying the network sharing behavior obtains the TTL value in the IP packet by receiving the IP packet sent by the device to be connected and forwarded by the mobile terminal, and determines whether the obtained TTL value is The specified TTL value is different. If yes, it is determined that the mobile terminal modifies the TTL value, further determining that the IP file is forwarded by the mobile terminal, thereby determining that the network sharing behavior occurs on the device to be connected, and each IP packet has The TTL value, which identifies the network sharing behavior according to the modified TTL value, avoids the problem that the network sharing behavior cannot be determined when there is no UA field in the Get message of the prior art, and improves the accuracy of identifying the network sharing behavior;
  • the system corresponds to a fixed TTL value, and the method of identifying the network sharing behavior according to the modified TTL value is applicable to any operating system. Expanded the range of scenarios for identifying network sharing behavior.
  • the user of the mobile terminal can control the network sharing behavior, thereby reducing the use of the network sharing service caused by the misoperation, thereby making the identification network sharing behavior more humanized.
  • the system for identifying the network sharing behavior provided by the foregoing embodiment is only exemplified by the division of the foregoing functional modules when identifying the network sharing behavior. In actual applications, the foregoing functions may be allocated differently according to requirements.
  • the function module is completed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • the method for the gateway general-purpose packet radio service supporting node, the mobile terminal, and the system for recognizing the network sharing behavior provided by the foregoing embodiment belongs to the same concept, and the specific implementation process is described in the method embodiment. Narration.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a computer.
  • computer readable media may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage media or other magnetic storage device, or can be used for carrying or storing in the form of an instruction or data structure.
  • the desired program code and any other medium that can be accessed by the computer may suitably be a computer readable medium.
  • the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable , fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwaves are included in the fixing of the associated media.
  • coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwaves are included in the fixing of the associated media.
  • a disk and a disc include a compact disc (CD), a laser disc, a disc, a digital versatile disc (DVD), a floppy disc, and a Blu-ray disc, wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data.
  • CD compact disc
  • DVD digital versatile disc
  • a floppy disc a disc
  • Blu-ray disc wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data.
  • the above combination should also include Within the protection of the computer-readable shield.
  • the above is only the preferred embodiment of the present invention, and is intended to limit the present invention. Any modifications, equivalent improvements, etc., which are within the spirit and scope of the present invention, should be included in the scope of the present invention. Inside.

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Abstract

本发明实施例提供了一种识别网络共享行为的方法、节点、移动终端及系统，涉及通信领域，所述方法包括：网关通用分组无线服务支撑节点GGSN接收待联网设备发送的且由移动终端转发的互联网协议IP报文；获取所述IP报文中的生存时间TTL值；判断获取的所述TTL值是否与指定的TTL值不同；如果是，确定所述待联网设备发生网络共享行为，还提供了相应的网关通用分组无线服务支撑节点、移动终端及系统。本发明提高了识别网络共享行为的准确度，扩大了对网络共享行为进行识别所适用的场景的范围。

Description

说 明 书 一种识别网络共享行为的方法、 节点、 移动终端及系统 技术领域
本发明涉及通信领域， 特别涉及一种识别网络共享行为的方法、 节点、 移 动终端及系统。 背景技术
网络共享（Tethering )行为是指待联网设备通过 WiFi ( Wireless Fidelity, 无线保真）、 蓝牙或 USB ( Universal Serial BUS, 通用串行总线）等方式连接 到移动终端， 通过移动终端实现移动网络共享的行为。 所述待联网设备包括但 不限于计算机、 平板电脑和移动终端等。 由于计算机、 平板电脑等和移动网络 交互的方式与移动终端和移动网络交互的方式不同， 如可能更多的进行 P2P
( Point to Point, 点对点） 下载等操作， 对移动网络造成了较大的沖击， 加剧 了移动网络的拥塞， 并且对数据卡等业务的销售也造成了较大的沖击， 影响了 运营商的收入， 因此， 很多运营商希望能够识别和控制网络共享行为。
现有技术中有两种识别网络共享行为的方法， 方案一是当 IP ( Internet Protocal,互联网协议）报文为 Get请求报文时， GGSN ( Gateway General Packet Radio Service Support Node, 网关通用分组无线服务支撑节点 )对接收到的 Get 报文进行 DPI ( Deep Packet Inspection, 深度包检测技术）解析， 对其中的 UA
( User-Agent, 用户代理）字段进行判断。 其中， UA是一个包含于 Get报文中 的特殊字符串头， 存储有 IP报文发送设备使用的操作系统及版本、 浏览器及 版本、 浏览器渲染引擎、 浏览器语言、 浏览器插件等信息。 GGSN可根据 UA 中的操作系统等信息判断出该 IP报文发送设备上网的类型， 从而区分该 IP报 文发送设备是否通过网络共享行为上网。 方案二是针对网络共享功能为待联网 设备设置独立的 APN ( Access Point Name, 接入点名称）， 与移动终端自身的 APN相互独立， 则 GGSN可通过识别 APN来识别网络共享行为。
方案一中， 若移动终端进行无 Get报文的业务， 则 GGSN无法获取 Get报文 中的 UA字段， 进而无法识别网络共享行为； 若移动终端进行 Get"¾文的业务， 由于大部分移动终端的浏览器可自行设置 UA, 用户也可更改 UA, 容易造成 GGSN对网络共享行为的识别错误。 方案二中， 目前仅 iOS ( iPhone Operation System, 苹果操作系统） 系统支持对网络共享功能设置独立的 APN, 运营商只 有与苹果公司合作才能对移动终端中具有网络共享功能的 APN进行配置，适用 场景 4艮窄。 发明内容
本发明实施例提供了一种识别网络共享行为的方法、 节点、 移动终端及系 统， 以提高识别网络共享行为的准确度， 扩大对网络共享行为进行识别所适用 的场景的范围。 所述技术方案如下：
一方面， 提供了一种识别网络共享行为的方法， 所述方法包括：
网关通用分组无线服务支撑节点 GGSN接收待联网设备发送的且由移动 终端转发的互联网协议 IP 文；
获取所述 IP报文中的生存时间 TTL值；
判断获取的所述 TTL值是否与指定的 TTL值不同；
如果是， 确定所述待联网设备发生网络共享行为。
具体地， 判断获取的所述 TTL值是否与指定的 TTL值不同， 包括： 进一步地，网关通用分组无线服务支撑节点 GGSN接收待联网设备发送的 且由移动终端转发的互联网协议 IP 文之前， 还包括：
所述 GGSN接收所述移动终端发送的至少包含国际移动用户识别码 IMSI 信息的激活分组数据协议 PDP请求；
向策略和计费规则功能 PCRF发送所述 IMSI信息；
接收所述 PCRF根据所述 IMSI信息对应的用户签约信息下发的策略和规 则；
向所述移动终端发送激活成功通知消息。
进一步地， 接收所述 PCRF根据所述 IMSI信息对应的用户签约信息下发 的策略和规则之前， 还包括：
所述 PCRF根据所述 IMSI信息判断所述用户是否签约了网络共享业务； 如果是， 则下发签约网络共享业务的策略和规则给所述 GGSN;
如果否， 则下发未签约网络共享业务的策略和规则给所述 GGSN。
进一步地， 确定所述待联网设备发生网络共享行为之后， 还包括： 如果 GGSN已接收到 PCRF下发的通知消息，且所述通知消息中携带指示 所述 GGSN进行网络共享行为上报的事件触发参数，则向所述 PCRF上报所述 网络共享行为， 使得所述 PCRF通知所述移动终端， 所述待联网设备正在使用 网络共享业务。
进一步地， 向所述 PCRF上报所述网络共享行为， 包括：
所述 GGSN向所述 PCRF发送在 Gx接口上新增的状态参数， 所述状态参 数用来标明网络共享行为的状态。
进一步地， 确定所述待联网设备发生网络共享行为之后， 还包括： 所述 GGSN根据预设的策略和规则处理所述 IP报文； 或者，
所述 GGSN根据 PCRF下发的策略和规则处理所述 IP报文。
另一方面， 还提供了一种识别网络共享行为的方法， 所述方法包括： 移动终端接收待联网设备发送的互联网协议 IP报文；
修改所述 IP报文中的生存时间 TTL值；
向网关通用分组无线服务支撑节点 GGSN转发包含修改后的 TTL值的 IP 报文， 使得所述 GGSN根据修改后的所述 TTL值识别所述待联网设备的网络 共享行为。
具体地， 所述修改所述 IP报文中的生存时间 TTL值， 包括：
所述移动终端将所述 IP报文中的 TTL值减 1。
进一步地， 移动终端接收待联网设备发送的互联网协议 IP报文之前， 还包 括：
所述移动终端向所述 GGSN发送至少包含国际移动用户识别码 IMSI信息 的激活分组数据协议 PDP请求，使得所述 GGSN向策略和计费规则功能 PCRF 发送所述 IMSI信息；
当所述 GGSN接收到所述 PCRF根据所述 IMSI信息对应的用户签约信息 下发的策略和规则后， 接收所述 GGSN发送的激活成功通知消息。
又一方面， 还提供了一种网关通用分组无线服务支撑节点 GGSN, 所述 GGSN包括：
第一接收模块， 用于接收待联网设备发送的且由移动终端转发的互联网协 议 IP报文；
获取模块， 用于获取所述 IP报文中的生存时间 TTL值；
判断模块， 用于判断获取的所述 TTL值是否与指定的 TTL值不同； 识别模块， 用于如果所述判断模块判断获取的所述 TTL值与指定的 TTL 值不同， 则确定所述待联网设备发生网络共享行为。
所述判断模块用于判断所述 IP报文中的 TTL值是否比指定的 TTL值小 1。 所述 GGSN还包括：
第二接收模块， 用于接收所述移动终端发送的至少包含国际移动用户识别 码 IMSI信息的激活分组数据协议 PDP请求；
第一发送模块， 用于向策略和计费规则功能 PCRF发送所述 IMSI信息； 第三接收模块， 用于接收所述 PCRF根据所述 IMSI信息对应的用户签约 信息下发的策略和规则；
第二发送模块， 用于向所述移动终端发送激活成功通知消息。
所述 GGSN还包括：
上报模块， 用于如果 GGSN已接收到 PCRF下发的通知消息， 且所述通知 消息中携带指示所述 GGSN进行网络共享行为上 的事件触发参数，则向所述 PCRF上报所述网络共享行为， 使得所述 PCRF通知所述移动终端， 所述待联 网设备正在使用网络共享业务。
所述上报模块用于向所述 PCRF发送在 Gx接口上新增的状态参数， 所述 状态参数用来标明网络共享行为的状态。
所述 GGSN还包括：
第一处理模块， 用于根据预设的策略和规则处理所述 IP报文； 或者， 第二处理模块， 用于根据 PCRF下发的策略和规则处理所述 IP报文。 再一方面， 还提供了一种移动终端， 所述移动终端包括：
第四接收模块， 用于接收待联网设备发送的互联网协议 IP报文；
修改模块， 用于修改所述 IP报文中的生存时间 TTL值；
转发模块，用于向网关通用分组无线服务支撑节点 GGSN转发包含修改后 的 TTL值的 IP报文，使得所述 GGSN根据修改后的所述 TTL值识别所述待联 网设备的网络共享行为。
所述修改模块用于将所述 IP报文中的 TTL值减 1。
所述移动终端还包括：
第三发送模块，用于向所述 GGSN发送至少包含国际移动用户识别码 IMSI 信息的激活分组数据协议 PDP请求， 使得所述 GGSN向策略和计费规则功能 PCRF发送所述 IMSI信息； 第五接收模块， 用于当所述 GGSN接收到所述 PCRF根据所述 IMSI信息 对应的用户签约信息下发的策略和规则后，接收所述 GGSN发送的激活成功通 知消息。
再一方面， 还提供了一种识别网络共享行为的系统， 所述系统包括： 如上 所述的网关通用分组无线服务支撑节点 GGSN和如上所述的移动终端。
本发明实施例提供的技术方案的有益效果是：
通过接收待联网设备发送的且由移动终端转发的 IP报文， 获取所述 IP报 文中的 TTL值， 判断获取的所述 TTL值是否与指定的 TTL值不同， 如果是， 则确定移动终端修改了所述 TTL值，进一步确定所述 IP报文由移动终端转发， 从而确定待联网设备发生网络共享行为， 且每个 IP报文中都有 TTL值， 根据 修改后的 TTL值识别网络共享行为的方法避免了现有技术的 Get报文中无 UA 字段时无法判断网络共享行为的问题， 提高了识别网络共享行为的准确度； 另 外， 操作系统对应于固定的 TTL值， 根据修改后的 TTL值识别网络共享行为 的方法适用于任何操作系统，扩大了对网络共享行为进行识别所适用的场景的 范围。 附图说明
为了更清楚地说明本发明实施例中的技术方案， 下面将对实施例描述中所 需要使用的附图作筒单地介绍， 显而易见地， 下面描述中的附图仅仅是本发明 的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下， 还可以根据这些附图获得其他的附图。
图 1是本发明实施例一提供的一种识别网络共享行为的方法流程图； 图 2是本发明实施例二提供的一种识别网络共享行为的方法流程图； 图 3是本发明实施例三提供的一种识别网络共享行为的方法流程图； 图 4是本发明实施例四提供的一种识别网络共享行为的方法流程图； 图 5是本发明实施例四提供的一种识别网络共享行为的方法应用流程示意 图；
图 6是本发明实施例五提供的一种网关通用分组无线服务支撑节点的结构 示意图；
图 7是本发明实施例六提供的一种网关通用分组无线服务支撑节点的结构 示意图； 图 8是本发明实施例七提供的一种移动终端的结构示意图；
图 9是本发明实施例八提供的一种移动终端的结构示意图；
图 10是本发明实施例九提供的一种识别网络共享行为的系统的结构示意 图。 具体实施方式
为使本发明的目的、 技术方案和优点更加清楚， 下面将结合附图对本发明 实施方式作进一步地详细描述。
本实施例涉及待联网设备通过移动终端的移动网络进行上网的行为， 所述 移动网络可以包括但不限于 GPRS ( General Packet Radio Service, 通用分组无 线服务） 网络、 3G ( 3rd-generation, 第三代移动通信技术） 网络、 WiFi 网络 和 WiMax ( Worldwide Interoperability for Microwave Access, 全球微波互联接 入）网络等等，本发明实施例以 GPRS网络为例进行说明， 下文不再特别声明。
实施例一
参见图 1 , 本实施例提供了一种识别网络共享行为的方法， 该方法流程具 体如下：
101: GGSN接收待联网设备发送的且由移动终端转发的 IP报文。
GGSN是网关 GPRS支撑节点， 具有网络控制的信息屏蔽功能， 可以选择 能够进入 GPRS网络的 IP报文， 以保证 GPRS网络的安全。
待联网设备是指通过移动终端的 GPRS网络进行上网行为的设备， 可以包 括但不限于计算机、 平板电脑和移动终端等。
IP报文是互联网协议中交换与传输的数据单元。
102: 获取所述 IP才艮文中的 TTL ( Time to Live, 生存时间 )值。
TTL是 IP报文首部中的一个标志位， 用来标识 IP报文被丟弃之前允许通 过的网段数量。 TTL值一般跟操作系统相关， 且待联网设备的上行 IP报文中
TTL值一般是固定的。
103: 判断获取的所述 TTL值是否与指定的 TTL值不同。
104: 如果是， 确定待联网设备发生网络共享行为。
网络共享行为是指待联网设备通过 WiFi、 蓝牙或 USB等方式连接到移动 终端， 通过移动终端实现移动网络共享的行为。
具体地， 判断获取的所述 TTL值是否与指定的 TTL值不同， 可以包括： GGSN判断所述 IP报文中的 TTL值是否比指定的 TTL值小 1。 进一步地， GGSN接收待联网设备发送的且由移动终端转发的 IP报文之 前， 还可以包括：
GGSN 接收移动终端发送的至少包含 IMSI ( International Mobile Subscriberldentification Number,国际移动用户识别码）信息的激活 PDP( Packet Data Protocol, 分组数据协议）请求；
向 PCRF ( Policy and Charging Rules Function, 策略和计费规则功能）发送 所述 IMSI信息；
接收 PCRF根据所述 IMSI信息对应的用户签约信息下发的策略和规则； 向移动终端发送激活成功通知消息。
进一步地， 接收 PCRF根据所述 IMSI信息对应的用户签约信息下发的策 略和规则之前， 还可以包括：
PCRF根据所述 IMSI信息判断所述用户是否签约了网络共享业务； 如果是， 则下发签约网络共享业务的策略和规则给 GGSN;
如果否， 则下发未签约网络共享业务的策略和规则给 GGSN。
进一步地， 确定待联网设备发生网络共享行为之后， 还可以包括： 如果 GGSN已接收到 PCRF下发的通知消息，且所述通知消息中携带指示 GGSN进行网络共享行为上报的事件触发参数， 则向 PCRF上报所述网络共享 行为， 使得 PCRF通知移动终端， 待联网设备正在使用网络共享业务。
进一步地， 向 PCRF上报所述网络共享行为， 可以包括：
GGSN向 PCRF发送在 Gx接口上新增的状态参数， 所述状态参数用来标 明网络共享行为的状态。
进一步地， 确定待联网设备发生网络共享行为之后， 还可以包括：
GGSN根据预设的策略和规则处理所述 IP报文； 或者，
GGSN根据 PCRF下发的策略和规则处理所述 IP报文。
本实施例提供的上述方法， 通过接收待联网设备发送的且由移动终端转发 的 IP报文， 获取所述 IP报文中的 TTL值， 判断获取的所述 TTL值是否与指 定的 TTL值不同， 如果是， 则确定移动终端修改了所述 TTL值， 进一步确定 所述 IP报文由移动终端转发， 从而确定待联网设备发生网络共享行为， 且每 个 IP报文中都有 TTL值，根据修改后的 TTL值识别网络共享行为的方法避免 了现有技术的 Get报文中无 UA字段时无法判断网络共享行为的问题， 提高了 识别网络共享行为的准确度； 另外， 操作系统对应于固定的 TTL值， 根据修 改后的 TTL值识别网络共享行为的方法适用于任何操作系统， 扩大了对网络 共享行为进行识别所适用的场景的范围。
另外， 通过判断是否已接收到 PCRF下发的通知消息， 且所述通知消息中 携带指示 GGSN进行网络共享行为上报的事件触发参数， 如果是， 则向 PCRF 上报所述网络共享行为， 使得 PCRF可以通知所述移动终端， 待联网设备正在 使用网络共享业务， 移动终端的用户可对该网络共享行为进行控制， 减少由于 误操作引起的网络共享业务的使用， 从而使识别网络共享行为更加人性化。 实施例二
参见图 2, 本实施例提供了一种识别网络共享行为的方法， 该方法流程具 体如下：
201 : 移动终端接收待联网设备发送的 IP报文。
202： 修改所述 IP报文中的 TTL值。
移动终端接收到待联网设备发送的 IP报文之后， 获取该 IP报文中的 TTL 值， 并修改所述获取的 TTL值， 以标识该 IP报文由待联网设备发送， 从而区 别于移动终端自身向 GPRS网络发送的 IP报文。
203: 向 GGSN转发包含修改后的 TTL值的 IP报文， 使得 GGSN根据修 改后的所述 TTL值识别待联网设备的网络共享行为。
具体地， 修改所述 IP报文中的 TTL值， 可以包括：
移动终端将所述 IP 文中的 TTL值减 1。
进一步地， 移动终端接收待联网设备发送的 IP报文之前， 还可以包括： 移动终端向 GGSN发送至少包含 IMSI信息的激活 PDP请求， 使得 GGSN 向 PCRF发送所述 IMSI信息；
当 GGSN接收到 PCRF根据所述 IMSI信息对应的用户签约信息下发的策 略和规则后， 接收 GGSN发送的激活成功通知消息。
本实施例提供的上述方法， 通过接收待联网设备发送的 IP报文， 修改所 述 IP报文中的 TTL值， 向 GGSN转发包含修改后的 TTL值的 IP报文， 使得 GGSN可以根据修改后的 TTL值确定所述 IP报文由移动终端转发， 从而识别 待联网设备的网络共享行为，且每个 IP报文中都有 TTL值，根据修改后的 TTL 值识别网络共享行为的方法避免了现有技术的 Get报文中无 UA字段时无法判 断网络共享行为的问题， 提高了识别网络共享行为的准确度； 另外， 操作系统 对应于固定的 TTL值， 根据修改后的 TTL值识别网络共享行为的方法适用于 任何操作系统， 也扩大了对网络共享行为进行识别所适用的场景的范围。 实施例三
参见图 3, 本实施例提供了一种识别网络共享行为的方法， 通过 GGSN预 设的策略和规则处理 IP报文。 该方法流程具体如下：
301: 移动终端接收待联网设备发送的 IP报文， 并修改所述 IP报文中的 TTL值。
本实施例中，待联网设备是指通过移动终端的 GPRS网络进行上网行为的 设备， 可以包括但不限于计算机、 平板电脑和移动终端等。 具体地， 待联网设 备可以通过 WiFi、 蓝牙或 USB等方式连接到移动终端， 向移动终端发送 IP才艮 文， 移动终端向 GPRS网络转发所述 IP 文，从而实现通过移动终端的 GPRS 网络进行上网行为。 所述 IP报文是互联网协议中交换与传输的数据单元。
TTL是 IP报文首部中的一个标志位， 用来标识 IP报文被丟弃之前允许通 过的网段数量。 TTL值一般跟操作系统相关， 且待联网设备的上行 IP报文中 TTL值一般是固定的。 表 1示出了常用操作系统的 TTL值， 如 Linux的 TTL 值为 64, Apple iOS (苹果操作系统 )的 TTL值为 64, Windows Phone的 TTL 值为 128等等。
表 1
Figure imgf000011_0001
本实施例中， 移动终端接收到待联网设备发送的 IP报文之后， 获取该 IP 报文中的 TTL值， 并修改所述获取的 TTL值， 以标识该 IP报文由待联网设备 发送， 从而区别于移动终端自身向 GPRS网络发送的 IP报文。
进一步地， 修改所述 IP报文中的 TTL值可具体为： 移动终端将所述 IP报 文中的 TTL值减 1。 例如， Windows Phone连接到 Apple iOS, 通过 Apple iOS 实现网络共享行为， 则 Apple iOS接收到 Windows Phone发送的 IP报文之后， 获取该 IP 文中的 TTL值 128, 将 128减 1得到 127, 用 127替换原 TTL值 128。
302: 移动终端向 GGSN转发包含修改后的 TTL值的 IP报文。
本实施例中， GGSN是网关 GPRS支撑节点， 具有网络控制的信息屏蔽功 能， 可以选择能够进入 GPRS网络的 IP报文， 以保证 GPRS网络的安全。 另 外， 本实施例中的 GGSN还具有计费信息收集功能， 能够收集每个移动终端使 用 GPRS网络资源相关的计费信息。
303: GGSN接收移动终端转发的所述 IP报文。
304: GGSN获取所述 IP报文中的 TTL值， 并判断获取的 TTL值是否与 指定的 TTL值不同， 如果是， 执行 305; 否则， 流程结束。
其中， 指定的 TTL值是操作系统的固定 TTL值， 参见表 1 , 本实施例中 指定的 TTL值可以包括但不限于 128、 64或 69等等， 可通过待联网设备发送 给移动终端， 由移动终端告知 GGSN。 另外， GGSN还获取接收到的 IP报文 中的 TTL值， 判断获取的 TTL值是否与指定的 TTL值不同。 其中， 判断获取 的 TTL值是否与指定的 TTL值不同可具体为： GGSN判断所述 IP报文中的 TTL值是否比指定的 TTL值小 1。 如果所述 TTL值比指定的 TTL值小 1 , 则 确定所述 IP 文由待联网设备发送且由移动终端转发， 从而确定待联网设备 发生网络共享行为； 如果所述 TTL值与指定的 TTL值相等， 则确定所述 IP报 文由移动终端产生并发送， 移动终端发生自主上网行为， 从而确定待联网设备 未发生网络共享行为。
仍以上述 Windows Phone连接到 Apple iOS,通过 Apple iOS实现网络共享 行为为例进行说明， 如果 Apple iOS转发 Windows Phone的 IP报文， 则 GGSN 获取的 IP报文中的 TTL值为 127, 由于指定的 TTL值为 128、 64或 69, 均与 127不同， GGSN确定 Windows Phone发生网络共享行为； 如果 Apple iOS自 身产生并发送 IP报文， 则 GGSN获取的 IP报文中的 TTL值为 64, 由于指定 的 TTL值中包含 64 , GGSN确定 Windows Phone未发生网络共享行为，由 Apple iOS发生自主上网行为。 305: GGSN确定待联网设备发生网络共享行为， 根据预设的策略和规则 处理所述 IP 文。
本实施例中， GGSN读取预设的策略和规则， 对所述 IP 文进行处理。 其中， 所述策略和规则为 GGSN预先在本地设置的。 具体地， GGSN针对运营 商提供的业务设置不同的策略和规则，当 GGSN确定待联网设备发生网络共享 行为时， 获取用户签约的业务， 从而获取所述业务对应的策略和规则， 根据所 述策略和规则处理 IP 文。 文， 或者， 对所述 IP报文进行阻塞， 或者， 根据 GGSN的计费规则对 IP报文 进行计费等等。
本实施例提供的上述方法， 通过接收待联网设备发送的且由移动终端转发 的 IP报文， 获取所述 IP报文中的 TTL值， 判断获取的所述 TTL值是否与指 定的 TTL值不同， 如果是， 则确定移动终端修改了所述 TTL值， 进一步确定 所述 IP报文由移动终端转发， 从而确定待联网设备发生网络共享行为， 且每 个 IP报文中都有 TTL值，根据修改后的 TTL值识别网络共享行为的方法避免 了现有技术的 Get报文中无 UA字段时无法判断网络共享行为的问题， 提高了 识别网络共享行为的准确度； 另外， 操作系统对应于固定的 TTL值， 根据修 改后的 TTL值识别网络共享行为的方法适用于任何操作系统， 扩大了对网络 共享行为进行识别所适用的场景的范围。 实施例四
参见图 4, 本实施例提供了一种识别网络共享行为的方法， 通过 PCRF下 发的策略和规则处理 IP报文。 该方法流程具体如下：
401: 移动终端向 GGSN发送至少包含 IMSI信息的激活 PDP请求。
本实施例中， IMSI是国际移动用户识别码， 可唯一地标识一个移动用户。 移动终端通过 IMSI信息附着到 GPRS网络之后，向 GGSN发送至少包含 IMSI 信息的激活 PDP请求， 以通过该 PDP激活过程建立移动终端与 GPRS网络之 间的数据通道。 其中， 所述 PDP是分组数据协议， 是外部 PDN ( Public Data Network, 公用数据网） 网与 GPRS接口所用的网络协议。
402: GGSN接收移动终端发送的至少包含 IMSI信息的激活 PDP请求， 并向 PCRF发送所述 IMSI信息。 本实施例中的 GGSN并不具备计费功能， 因此， 需在网络中部署 PCRF, 以针对移动终端使用的 GPRS网络资源进行计费。 所述 PCRF用于根据业务信 息制定策略规则， 可以包括但不限于数据流检测、 门限控制、 QoS ( Quality of Service, 服务质量）控制以及基于流的计费等等。 通常一个网络中可以包括多 个 PCRF, 每个 PCRF可以制定相应的策略规则， 并根据策略规则对所管辖的 移动终端进行控制。
403: PCRF根据所述 IMSI信息判断用户是否签约了网络共享业务， 如果 是， 执行 404; 否则， 执行 405。
本实施例中， 用户签约信息是指用户与运营商签约业务的信息， 所述业务 可以包括但不限于： GPRS移动数据业务、 网络共享业务和短信业务等等。 用 户签约信息可通过 IMSI信息进行唯一地标识，则 PCRF可根据 IMSI信息获取 对应的用户签约信息， 并根据该用户签约信息判断该用户是否签约了网络共享 业务。
404: PCRF下发签约网络共享业务的策略和规则给所述 GGSN,执行 406。 本实施例中，签约网络共享业务的策略和规则是运营商为签约了网络共享 业务的用户指定的策略和规则。例如，运营商设定了 5元包 30Mbit GPRS流量 的网络共享业务，每超额 1Mbit GPRS流量收取 1元费用；或者， 20元包 150Mbit GPRS流量的网络共享业务， 每超额 1Mbit GPRS流量收取 2元费用等等， 本 实施例不作限定。
405: PCRF下发未签约网络共享业务的策略和规则给所述 GGSN。
本实施例中， 未签约网络共享业务的策略和规则是运营商为未签约网络共 享业务的用户指定的策略和规则。 例如， 运营商设定每 1Mbit GPRS流量收取 1元费用； 或者， 每 1Mbit GPRS流量收取 2元费用等等， 本实施例不作限定。
406: GGSN接收 PCRF根据所述 IMSI信息对应的用户签约信息下发的策 略和规则。
本实施例中， GGSN对接收到的策略和规则进行存储， 以便根据该策略和 规则对网络共享行为进行控制。
407: GGSN向移动终端发送激活成功通知消息。
408: 如果移动终端在指定的时间内接收到 GGSN发送的激活成功通知消 息， 则接收待联网设备发送的 IP报文。
本实施例中，如果移动终端在指定的时间内接收到 GGSN发送的激活成功 通知消息， 则表明移动终端与 GPRS网络之间的数据通道建立完成， 移动终端 可开启网络共享功能， 接收待联网设备发送的 IP报文； 如果移动终端未在指 定的时间内接收到 GGSN发送的激活成功通知消息， 则表明移动终端与 GPRS 网络之间的 PDP激活过程失败， 此时移动终端不能连接到 GPRS 网络， 即移 动终端无法开启网络共享功能。
409： 移动终端修改所述 IP报文中的 TTL值。
具体地， 移动终端接收到待联网设备发送的 IP报文之后， 获取该 IP报文 中的 TTL值，并修改所述获取的 TTL值，以标识该 IP报文由待联网设备发送， 从而区别于移动终端自身向 GPRS网络发送的 IP报文。
进一步地， 修改所述 IP报文中的 TTL值可具体为： 移动终端将所述 IP报 文中的 TTL值减 1。
410: 移动终端向 GGSN转发包含修改后的 TTL值的 IP报文。
411: GGSN接收移动终端转发的所述 IP报文。
412: GGSN获取所述 IP报文中的 TTL值， 并判断获取的 TTL值是否与 指定的 TTL值不同， 如果是， 执行 413; 否则， 流程结束。
具体地， 判断获取的 TTL值是否与指定的 TTL值不同详见步骤 304中的 描述， 此处不赞述。
413: GGSN确定待联网设备发生网络共享行为， 根据 PCRF下发的策略 和规则处理所述 IP报文。
本实施例中， GGSN读取 PCRF下发的策略和规则，对所述 IP报文进行处 理。 其中， 所述策略和规则为 PCRF预先设置的。 具体地， PCRF针对运营商 提供的业务设置不同的策略和规则， 并下发给 GGSN, 由 GGSN对所述 IP报 文进行处理。
具体地， GGSN对所述 IP 文进行处理可以包括但不限于： 丟弃所述 IP 报文， 或者， 对所述 IP报文进行阻塞， 或者， 根据 PCRF下发的计费规则对 IP报文进行计费等等。
可选地， 所述方法还可以包括：
GGSN 已接收到 PCRF 下发的通知消息， 且所述通知消息中携带指示 GGSN进行网络共享行为上报的事件触发参数， 则向 PCRF上报所述网络共享 行为，使得 PCRF通知所述移动终端，所述待联网设备正在使用网络共享业务。
本实施例中， 所述通知消息用来通知 GGSN进行网络共享行为上报， 可以 为 CCA-I ( Credit Control Answer-Initial, 信用控制应答 -初始化）， 或者， 也可 以为其它通知消息， 本实施例不作限定。
其中， 所述事件触发参数用来指示 GGSN进行网络共享行为上报，具体指 当 GGSN检测到网络共享行为的事件发生时，触发向 PCRF上报发生所述事件。
具体地， PCRF可以在 Gx接口上扩展 Event-Trigger (事件触发参数 )的取 值， 新增用来通知 GGSN 进行网络共享行为上报的 Tethering_REPORT作为 Event-Trigger的一个取值， 具体如下：
< Event-Trigger >：: =< AVP Header: AVP Code 1006, M-Bit set, V-Bit set, Vendor-ID 10415 >
Event-Trigger= Tethering_REPORT ( 101 )
其中， 向 PCRF上报网络共享行为可以包括：
GGSN向 PCRF发送在 Gx接口上新增的状态参数， 所述状态参数用来标 明网络共享行为的状态。
具体地， Gx接口上新增的状态参数可以为 X-HW-Event-Status(事件状态）， 所述 X-HW-Event-Status的结构如下：
< X-HW-Event-Status > ：: =< AVP Header: AVP Code 2018, V-Bit set, Vendor-ID 2011 >
[START]
[STOP]
*[AVP] 例如，当 GGSN将 X-HW-Event-Status赋值为 [START]并发送给 PCRF时， PCRF 读取 X-HW-Event-Status 的值为 [START] ,则确定网络共享行为开始； 当 GGSN 将 X-HW-Event-Status 赋值为 [STOP]并发送给 PCRF 时， PCRF 读取 X-HW-Event-Status 的值为 [STOP] , 则确定网络共享行为结束。 当然， 还可在 X-HW-Event-Status 中新增其它状态参数来标明网络共享行为的状态， 本实施 例不作限定。
优选地， PCRF在接收到 GGSN发送的 X-HW-Event-Status之后， 可通过 邮件或者短信通知移动终端， 待联网设备目前正在使用网络共享业务， 当然， PCRF也可通过其他方式通知移动终端， 待联网设备目前正在使用网络共享业 务， 本实施例不作限定。 参见图 5, 为本实施例提供的上述方法的具体应用流程示意图， 识别网络 共享行为的过程具体如下：
501: 移动终端向 PCEF ( Policy and Charging Enforcement Function, 策格 和计费执行功能）发送激活 PDP请求。
其中， PCEF主要包含业务数据流的检测、 策略执行和基于流的计费功能， 位于 GGSN中。
502: PCEF通过 CCR-I ( Credit Control Request-Initial, 信用控制请求-初 始化） 消息向 PCRF上报 IMSI信息。
503: PCRF通过 CCA-I消息向 PCEF下发策略和规则。
其中， 如果 PCRF 下发的是未签约网络共享行为的策略和规则， 且需要 PCRF通知移动终端， 待联网设备正在使用网络共享业务， 则 PCRF还通过 CCA-I消息向 GGSN下发通知消息。
504: PCEF向移动终端发送激活成功通知消息。
505: PCEF接收移动终端发送的 IP报文。
506: PCEF通过 CCR-U ( Credit Control Request-Update, 信用控制请求- 更新 ) 消息向 PCRF上报网络共享行为。
507: PCRF通过 CCA-U ( Credit Control Answer-Update, 信用控制应答- 更新 ) 消息向 PCEF发送响应消息。
508: PCEF根据 PCRF下发的策略和规则处理 IP报文。
本实施例提供的上述方法， 通过接收待联网设备发送的且由移动终端转发 的 IP报文， 获取所述 IP报文中的 TTL值， 判断获取的所述 TTL值是否与指 定的 TTL值不同， 如果是， 则确定移动终端修改了所述 TTL值， 进一步确定 所述 IP报文由移动终端转发， 从而确定待联网设备发生网络共享行为， 且每 个 IP报文中都有 TTL值，根据修改后的 TTL值识别网络共享行为的方法避免 了现有技术的 Get报文中无 UA字段时无法判断网络共享行为的问题， 提高了 识别网络共享行为的准确度； 另外， 操作系统对应于固定的 TTL值， 根据修 改后的 TTL值识别网络共享行为的方法适用于任何操作系统， 扩大了对网络 共享行为进行识别所适用的场景的范围。
另外， 通过判断是否已接收到 PCRF下发的通知消息， 且所述通知消息中 携带指示 GGSN进行网络共享行为上报的事件触发参数， 如果是， 则向 PCRF 上报所述网络共享行为， 使得 PCRF可以通知所述移动终端， 待联网设备正在 使用网络共享业务， 移动终端的用户可对该网络共享行为进行控制， 减少由于 误操作引起的网络共享业务的使用， 从而使识别网络共享行为更加人性化。 实施例五
参见图 6, 本实施例提供了一种网关通用分组无线服务支撑节点 GGSN, 该 GGSN可以包括：
第一接收模块 601 ,用于接收待联网设备发送的且由移动终端转发的 IP报 文；
获取模块 602, 用于获取所述 IP报文中的 TTL值；
判断模块 603, 用于判断获取的所述 TTL值是否与指定的 TTL值不同； 识别模块 604, 用于如果判断模块 603判断获取的所述 TTL值与指定的 TTL值不同， 则确定待联网设备发生网络共享行为。
具体地， 如果判断模块 603判断所述 TTL值比指定的 TTL值小 1 , 则识 别模块 604确定所述 IP报文由待联网设备发送且由移动终端转发， 从而确定 待联网设备发生网络共享行为； 如果判断模块 603判断所述 TTL值与指定的 TTL值相等， 则识别模块 604确定所述 IP报文由移动终端产生并发送， 移动 终端发生自主上网行为， 从而确定待联网设备未发生网络共享行为。
本实施例提供的上述 GGSN, 可以执行上述任一方法实施例中提供的识别 网络共享行为的方法， 具体过程详见方法实施例中的描述， 此处不赘述。
本实施例提供的上述 GGSN, 通过接收待联网设备发送的且由移动终端转 发的 IP报文， 获取所述 IP报文中的 TTL值， 判断获取的所述 TTL值是否与 指定的 TTL值不同， 如果是， 则确定移动终端修改了所述 TTL值， 进一步确 定所述 IP报文由移动终端转发， 从而确定待联网设备发生网络共享行为， 且 每个 IP报文中都有 TTL值，根据修改后的 TTL值识别网络共享行为的方法避 免了现有技术的 Get报文中无 UA字段时无法判断网络共享行为的问题， 提高 了识别网络共享行为的准确度； 另外， 操作系统对应于固定的 TTL值， 根据 修改后的 TTL值识别网络共享行为的方法适用于任何操作系统， 扩大了对网 络共享行为进行识别所适用的场景的范围。 实施例六
参见图 7, 本实施例提供了一种网关通用分组无线服务支撑节点 GGSN, 本实施例中的 GGSN与实施例五提供的 GGSN的不同之处在于： 的 TTL值小 1。
本实施例中， 所述 GGSN还可以包括：
第二接收模块 605 , 用于接收移动终端发送的至少包含 IMSI信息的激活 PDP请求；
第一发送模块 606, 用于向 PCRF发送所述 IMSI信息；
第三接收模块 607,用于接收 PCRF根据所述 IMSI信息对应的用户签约信 息下发的策略和规则；
第二发送模块 608, 用于向移动终端发送激活成功通知消息。
本实施例中， 所述 GGSN还可以包括：
上报模块 609, 用于如果 GGSN已接收到 PCRF下发的通知消息， 且所述 通知消息中携带指示 GGSN 进行网络共享行为上报的事件触发参数， 则向 PCRF上报所述网络共享行为， 使得 PCRF通知所述移动终端， 待联网设备正 在使用网络共享业务。
本实施例中， 上报模块 609用于向 PCRF发送在 Gx接口上新增的状态参 数， 所述状态参数用来标明网络共享行为的状态。
本实施例中， 所述 GGSN还可以包括：
第一处理模块 610, 用于根据预设的策略和规则处理所述 IP报文； 或者， 第二处理模块 611 , 用于根据 PCRF下发的策略和规则处理所述 IP报文。 本实施例提供的上述 GGSN, 可以执行上述任一方法实施例中提供的识别 网络共享行为的方法， 具体过程详见方法实施例中的描述， 此处不赘述。
本实施例提供的上述 GGSN, 通过接收待联网设备发送的且由移动终端转 发的 IP报文， 获取所述 IP报文中的 TTL值， 判断获取的所述 TTL值是否与 指定的 TTL值不同， 如果是， 则确定移动终端修改了所述 TTL值， 进一步确 定所述 IP报文由移动终端转发， 从而确定待联网设备发生网络共享行为， 且 每个 IP报文中都有 TTL值，根据修改后的 TTL值识别网络共享行为的方法避 免了现有技术的 Get报文中无 UA字段时无法判断网络共享行为的问题， 提高 了识别网络共享行为的准确度； 另外， 操作系统对应于固定的 TTL值， 根据 修改后的 TTL值识别网络共享行为的方法适用于任何操作系统， 扩大了对网 络共享行为进行识别所适用的场景的范围。 另外， 通过判断是否已接收到 PCRF下发的通知消息， 且所述通知消息中 携带指示 GGSN进行网络共享行为上报的事件触发参数， 如果是， 则向 PCRF 上报所述网络共享行为， 使得 PCRF可以通知所述移动终端， 待联网设备正在 使用网络共享业务， 移动终端的用户可对该网络共享行为进行控制， 减少由于 误操作引起的网络共享业务的使用， 从而使识别网络共享行为更加人性化。 实施例七
参见图 8, 本实施例提供了一种移动终端， 该移动终端包括：
第四接收模块 801 , 用于接收待联网设备发送的 IP报文；
修改模块 802, 用于修改所述 IP报文中的 TTL值；
移动终端接收到待联网设备发送的 IP报文之后， 获取该 IP报文中的 TTL 值， 并通过修改模块 802修改所述获取的 TTL值， 以标识该 IP报文由待联网 设备发送， 从而区别于移动终端自身向 GPRS网络发送的 IP报文。
转发模块 803, 用于向 GGSN转发包含修改后的 TTL值的 IP报文， 使得 GGSN根据修改后的所述 TTL值识别待联网设备的网络共享行为。
本实施例提供的上述移动终端， 可以执行上述任一方法实施例中提供的识 别网络共享行为的方法， 具体过程详见方法实施例中的描述， 此处不赘述。
本实施例提供的上述移动终端， 通过接收待联网设备发送的 IP报文， 修改 所述 IP报文中的 TTL值， 向 GGSN转发包含修改后的 TTL值的 IP报文， 使 别待联网设备的网络共享行为， 且每个 IP报文中都有 TTL值， 根据修改后的 TTL值识别网络共享行为的方法避免了现有技术的 Get报文中无 UA字段时无 法判断网络共享行为的问题， 提高了识别网络共享行为的准确度； 另外， 操作 系统对应于固定的 TTL值， 根据修改后的 TTL值识别网络共享行为的方法适 用于任何操作系统， 扩大了对网络共享行为进行识别所适用的场景的范围。 实施例八
参见图 9, 本实施例提供了一种移动终端， 本实施例中的移动终端与实施 例七提供的移动终端的不同之处在于：
本实施例中， 修改模块 802用于将所述 IP报文中的 TTL值减 1。
本实施例中， 所述移动终端还可以包括： 第三发送模块 804 , 用于向 GGSN发送至少包含 IMSI信息的激活 PDP请 求， 使得 GGSN向 PCRF发送所述 IMSI信息；
第五接收模块 805, 用于当 GGSN接收到 PCRF根据所述 IMSI信息对应 的用户签约信息下发的策略和规则后， 接收 GGSN发送的激活成功通知消息。
本实施例提供的上述移动终端， 可以执行上述任一方法实施例中提供的识 别网络共享行为的方法， 具体过程详见方法实施例中的描述， 此处不赘述。
本实施例提供的上述移动终端， 通过接收待联网设备发送的 IP报文， 修 改所述 IP报文中的 TTL值， 向 GGSN转发包含修改后的 TTL值的 IP报文， 使得 GGSN可以根据修改后的 TTL值确定所述 IP报文由移动终端转发， 从而 识别待联网设备的网络共享行为， 且每个 IP报文中都有 TTL值， 根据修改后 的 TTL值识别网络共享行为的方法避免了现有技术的 Get报文中无 UA字段时 无法判断网络共享行为的问题， 提高了识别网络共享行为的准确度； 另外， 操 作系统对应于固定的 TTL值， 根据修改后的 TTL值识别网络共享行为的方法 适用于任何操作系统， 扩大了对网络共享行为进行识别所适用的场景的范围。 实施例九
参见图 10,本实施例提供了一种识别网络共享行为的系统，该系统可以包 括： 网关通用分组无线服务支撑节点 GGSN 1001和移动终端 1002。
其中， GGSN 1001可以为上述实施例五或实施例六提供的 GGSN,移动终 端 1002可以为上述实施例七或实施例八提供的移动终端。
本实施例提供的上述识别网络共享行为的系统， 可以执行上述任一方法实 施例中提供的识别网络共享行为的方法， 具体过程详见方法实施例中的描述， 此处不赞述。
本实施例提供的上述识别网络共享行为的系统， 通过接收待联网设备发送 的且由移动终端转发的 IP报文， 获取所述 IP报文中的 TTL值， 判断获取的所 述 TTL值是否与指定的 TTL值不同，如果是，则确定移动终端修改了所述 TTL 值， 进一步确定所述 IP 文由移动终端转发， 从而确定待联网设备发生网络 共享行为， 且每个 IP报文中都有 TTL值， 根据修改后的 TTL值识别网络共享 行为的方法避免了现有技术的 Get报文中无 UA字段时无法判断网络共享行为 的问题， 提高了识别网络共享行为的准确度； 另外， 操作系统对应于固定的 TTL值， 根据修改后的 TTL值识别网络共享行为的方法适用于任何操作系统， 扩大了对网络共享行为进行识别所适用的场景的范围。
另外， 通过判断是否已接收到 PCRF下发的通知消息， 且所述通知消息中 携带指示 GGSN进行网络共享行为上报的事件触发参数， 如果是， 则向 PCRF 上报所述网络共享行为， 使得 PCRF可以通知所述移动终端， 待联网设备正在 使用网络共享业务， 移动终端的用户可对该网络共享行为进行控制， 减少由于 误操作引起的网络共享业务的使用， 从而使识别网络共享行为更加人性化。 需要说明的是： 上述实施例提供的识别网络共享行为的系统在识别网络共 享行为时， 仅以上述各功能模块的划分进行举例说明， 实际应用中， 可以根据 需要而将上述功能分配由不同的功能模块完成， 即将装置的内部结构划分成不 同的功能模块， 以完成以上描述的全部或者部分功能。 另外， 上述实施例提供 的网关通用分组无线服务支撑节点、移动终端及识别网络共享行为的系统与识 别网络共享行为的方法实施例属于同一构思， 其具体实现过程详见方法实施 例， 这里不再赘述。
上述本发明实施例序号仅仅为了描述， 不代表实施例的优劣。
通过以上的实施方式的描述， 所属领域的技术人员可以清楚地了解到本发 明可以用硬件实现， 或软件实现， 或固件实现， 或它们的组合方式来实现。 当 使用软件实现时， 可以将上述功能存储在计算机可读介质中或作为计算机可读 介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介 质和通信介质， 其中通信介质包括便于从一个地方向另一个地方传送计算机程 序的任何介质。 存储介质可以是计算机能够存取的任何可用介质。 以此为例但 不限于： 计算机可读介质可以包括 RAM、 ROM, EEPROM、 CD-ROM或其他 光盘存储、 磁盘存储介质或者其他磁存储设备、 或者能够用于携带或存储具有 指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质。 此外。 任何连接可以适当的成为计算机可读介质。 例如， 如果软件是使用同轴 电缆、 光纤光缆、 双绞线、 数字用户线（DSL )或者诸如红外线、 无线电和微 波之类的无线技术从网站、 服务器或者其他远程源传输的， 那么同轴电缆、 光 纤光缆、 双绞线、 DSL或者诸如红外线、 无线和微波之类的无线技术包括在所 属介质的定影中。 如本发明所使用的， 盘（Disk )和碟（disc ) 包括压缩光碟 ( CD ), 激光碟、 光碟、 数字通用光碟（DVD )、 软盘和蓝光光碟， 其中盘通 常磁性的复制数据， 而碟则用激光来光学的复制数据。 上面的组合也应当包括 在计算机可读介盾的保护范围之内。 以上所述仅为本发明的较佳实施例， 并 用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替 改进等， 均应包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1、 一种识别网络共享行为的方法， 其特征在于， 所述方法包括：
网关通用分组无线服务支撑节点 GGSN接收待联网设备发送的且由移动终 端转发的互联网协议 IP 文；
获取所述 IP报文中的生存时间 TTL值；
判断获取的所述 TTL值是否与指定的 TTL值不同；
如果是， 确定所述待联网设备发生网络共享行为。
2、 根据权利要求 1所述的方法， 其特征在于， 判断获取的所述 TTL值是否 与指定的 TTL值不同， 包括：
3、 根据权利要求 1所述的方法， 其特征在于， 网关通用分组无线服务支撑 节点 GGSN接收待联网设备发送的且由移动终端转发的互联网协议 IP报文之 前， 还包括：
所述 GGSN接收所述移动终端发送的至少包含国际移动用户识别码 IMSI 信息的激活分组数据协议 PDP请求；
向策略和计费规则功能 PCRF发送所述 IMSI信息；
接收所述 PCRF根据所述 IMSI信息对应的用户签约信息下发的策略和规 则；
向所述移动终端发送激活成功通知消息。
4、根据权利要求 3所述的方法，其特征在于，接收所述 PCRF根据所述 IMSI 信息对应的用户签约信息下发的策略和规则之前， 还包括：
所述 PCRF根据所述 IMSI信息判断所述用户是否签约了网络共享业务； 如果是， 则下发签约网络共享业务的策略和规则给所述 GGSN;
如果否， 则下发未签约网络共享业务的策略和规则给所述 GGSN。
5、 根据权利要求 1所述的方法， 其特征在于， 确定所述待联网设备发生网 络共享行为之后， 还包括： 如果 GGSN已接收到 PCRF下发的通知消息， 且所述通知消息中携带指示 所述 GGSN进行网络共享行为上报的事件触发参数， 则向所述 PCRF上报所述 网络共享行为， 使得所述 PCRF通知所述移动终端， 所述待联网设备正在使用 网络共享业务。
6、 根据权利要求 5所述的方法， 其特征在于， 向所述 PCRF上报所述网络 共享行为， 包括：
所述 GGSN向所述 PCRF发送在 Gx接口上新增的状态参数，所述状态参数 用来标明网络共享行为的状态。
7、 根据权利要求 1所述的方法， 其特征在于， 确定所述待联网设备发生网 络共享行为之后， 还包括：
所述 GGSN根据预设的策略和规则处理所述 IP报文； 或者，
所述 GGSN根据 PCRF下发的策略和规则处理所述 IP报文。
8、 一种识别网络共享行为的方法， 其特征在于， 所述方法包括：
移动终端接收待联网设备发送的互联网协议 IP报文；
修改所述 IP报文中的生存时间 TTL值；
向网关通用分组无线服务支撑节点 GGSN转发包含修改后的 TTL值的 IP报 文， 使得所述 GGSN根据修改后的所述 TTL值识别所述待联网设备的网络共享 行为。
9、 根据权利要求 8所述的方法， 其特征在于， 所述修改所述 IP报文中的生 存时间 TTL值， 包括：
所述移动终端将所述 IP 文中的 TTL值减 1。
10、 根据权利要求 8所述的方法， 其特征在于， 移动终端接收待联网设备发 送的互联网协议 IP报文之前， 还包括：
所述移动终端向所述 GGSN发送至少包含国际移动用户识别码 IMSI信息的 激活分组数据协议 PDP请求， 使得所述 GGSN向策略和计费规则功能 PCRF发 送所述 IMSI信息；
当所述 GGSN接收到所述 PCRF根据所述 IMSI信息对应的用户签约信息下 发的策略和规则后， 接收所述 GGSN发送的激活成功通知消息。
11、 一种网关通用分组无线服务支撑节点 GGSN, 其特征在于， 所述 GGSN 包括：
第一接收模块， 用于接收待联网设备发送的且由移动终端转发的互联网协 议 IP报文；
获取模块， 用于获取所述 IP报文中的生存时间 TTL值；
判断模块， 用于判断获取的所述 TTL值是否与指定的 TTL值不同； 识别模块，用于如果所述判断模块判断获取的所述 TTL值与指定的 TTL值 不同， 则确定所述待联网设备发生网络共享行为。
12、 根据权利要求 11所述的 GGSN, 其特征在于， 所述判断模块用于判断 所述 IP报文中的 TTL值是否比指定的 TTL值小 1。
13、 根据权利要求 11所述的 GGSN, 其特征在于， 所述 GGSN还包括： 第二接收模块， 用于接收所述移动终端发送的至少包含国际移动用户识别 码 IMSI信息的激活分组数据协议 PDP请求；
第一发送模块， 用于向策略和计费规则功能 PCRF发送所述 IMSI信息； 第三接收模块， 用于接收所述 PCRF根据所述 IMSI信息对应的用户签约信 息下发的策略和规则；
第二发送模块， 用于向所述移动终端发送激活成功通知消息。
14、 根据权利要求 11所述的 GGSN, 其特征在于， 所述 GGSN还包括： 上报模块， 用于如果 GGSN已接收到 PCRF下发的通知消息， 且所述通知 消息中携带指示所述 GGSN进行网络共享行为上报的事件触发参数， 则向所述 PCRF上报所述网络共享行为， 使得所述 PCRF通知所述移动终端， 所述待联网 设备正在使用网络共享业务。
15、 根据权利要求 14所述的 GGSN, 其特征在于， 所述上报模块用于向所 述 PCRF发送在 Gx接口上新增的状态参数，所述状态参数用来标明网络共享行 为的状态。
16、 根据权利要求 11所述的 GGSN, 其特征在于， 所述 GGSN还包括： 第一处理模块， 用于根据预设的策略和规则处理所述 IP报文； 或者， 第二处理模块， 用于根据 PCRF下发的策略和规则处理所述 IP报文。
17、 一种移动终端， 其特征在于， 所述移动终端包括：
第四接收模块， 用于接收待联网设备发送的互联网协议 IP报文；
修改模块， 用于修改所述 IP报文中的生存时间 TTL值；
转发模块， 用于向网关通用分组无线服务支撑节点 GGSN转发包含修改后 的 TTL值的 IP报文， 使得所述 GGSN根据修改后的所述 TTL值识别所述待联 网设备的网络共享行为。
18、 根据权利要求 17所述的移动终端， 其特征在于， 所述修改模块用于将 所述 IP 文中的 TTL值减 1。
19、 根据权利要求 17所述的移动终端， 其特征在于， 所述移动终端还包括： 第三发送模块， 用于向所述 GGSN发送至少包含国际移动用户识别码 IMSI 信息的激活分组数据协议 PDP请求， 使得所述 GGSN向策略和计费规则功能 PCRF发送所述 IMSI信息；
第五接收模块，用于当所述 GGSN接收到所述 PCRF根据所述 IMSI信息对 应的用户签约信息下发的策略和规则后， 接收所述 GGSN发送的激活成功通知 消息。
20、 一种识别网络共享行为的系统， 其特征在于， 所述系统包括如权利要 求 11至 16中任意一项所述的网关通用分组无线服务支撑节点 GGSN和如权利 要求 17至 19中任意一项所述的移动终端。
PCT/CN2012/077227 2012-06-20 2012-06-20 一种识别网络共享行为的方法、节点、移动终端及系统 WO2013189044A1 (zh)

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EP3059902B1 (en) 2017-08-30
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CN106302423A (zh) 2017-01-04
EP3059902A1 (en) 2016-08-24
KR101621346B1 (ko) 2016-05-16
RU2598581C2 (ru) 2016-09-27
US20150103697A1 (en) 2015-04-16
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