WO2012126320A2 - 一种数据传输异常的处理方法、设备和系统 - Google Patents

一种数据传输异常的处理方法、设备和系统 Download PDF

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Publication number
WO2012126320A2
WO2012126320A2 PCT/CN2012/072128 CN2012072128W WO2012126320A2 WO 2012126320 A2 WO2012126320 A2 WO 2012126320A2 CN 2012072128 W CN2012072128 W CN 2012072128W WO 2012126320 A2 WO2012126320 A2 WO 2012126320A2
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WO
WIPO (PCT)
Prior art keywords
terminal
wireless packet
packet gateway
address
gateway
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Application number
PCT/CN2012/072128
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English (en)
French (fr)
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WO2012126320A3 (zh
Inventor
胡玉胜
石天
林青春
王旭
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.)
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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 CN201280000467.5A priority Critical patent/CN102742314B/zh
Priority to PCT/CN2012/072128 priority patent/WO2012126320A2/zh
Publication of WO2012126320A2 publication Critical patent/WO2012126320A2/zh
Publication of WO2012126320A3 publication Critical patent/WO2012126320A3/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections

Definitions

  • the embodiments of the present invention relate to the field of communications, and in particular, to a method, a device, and a system for processing data transmission anomalies.
  • the terminal In the process of performing service access between the terminal and the service server, if the accessed service server is disconnected from the terminal, the terminal performs a reactivation operation in response to the attempt to restore the service, that is, sends an activation request to the gateway, and re-establishes the packet data protocol ( Packet Data Protocol (PDP) context to re-establish a service connection with the service server.
  • PDP Packet Data Protocol
  • the embodiment of the present invention provides a method, a device, and a system for processing an abnormality of data transmission, so as to avoid invalid operation of a reestablished connection caused by disconnection or failure of a service server, and reduce the gateway and related network devices. Signaling impact, reducing the operator's operating costs for equipment.
  • an embodiment of the present invention provides a method for processing an abnormal data transmission, including: acquiring, by a terminal, an address of a wireless packet gateway;
  • the terminal When the data transmission is abnormal, if the terminal knows that the connection between the terminal and the wireless packet gateway is normal according to the address of the wireless packet gateway, the terminal maintains the connection.
  • the method further includes:
  • the terminal When the data transmission is abnormal, if the terminal learns that the connection between the terminal and the wireless packet gateway is abnormal according to the address of the wireless packet gateway, the terminal re-establishes the connection.
  • the terminal learns that the connection between the terminal and the wireless packet gateway is abnormal, and the method includes: the terminal does not receive the probe response of the wireless packet gateway within a preset time.
  • the acquiring, by the terminal, an address of the wireless packet gateway includes:
  • the protocol context accept message includes an address of the wireless packet gateway, and the address of the wireless packet gateway is sent by the wireless packet gateway to the SGSN by creating a packet data protocol context response Create PDP Context Response message.
  • the acquiring, by the terminal, an address of the wireless packet gateway includes:
  • the terminal sends an attach request Attach Request message to the mobility management entity MME; the terminal receives an address of the wireless packet gateway sent by the MME, and the address of the wireless packet gateway is created by the wireless packet gateway by creating a session response Create Session The Response message is sent to the MME.
  • the address of the wireless packet gateway is carried in a protocol configuration option Protocol Configuration Options cell.
  • the terminal learns that the connection between the terminal and the wireless packet gateway is normal, and the method includes: receiving, by the terminal, a probe response of the wireless packet gateway within a preset time.
  • the terminal before the terminal learns that the connection between the terminal and the wireless packet gateway is normal, according to the address of the wireless packet gateway, the terminal further includes:
  • the terminal sends uplink data to the service server; if the terminal does not receive the response from the service server, the terminal determines that the data transmission is abnormal.
  • the address of the wireless packet gateway is a built-in anchor address of the gateway Gi interface.
  • an embodiment of the present invention provides another method for processing an abnormality of data transmission, including: sending, by a wireless packet gateway, an address of a wireless packet gateway to a terminal;
  • the wireless packet gateway receives the detection initiated by the terminal according to the address of the wireless packet gateway;
  • the wireless packet gateway sends a probe response to the terminal to maintain the terminal with the wireless packet gateway.
  • the method further includes: The wireless packet gateway performs flow control on the probe initiated by the terminal.
  • the sending, by the wireless packet gateway, the address of the wireless packet gateway to the terminal includes: the wireless packet gateway receiving a create packet data protocol context request Create PDP Context Request message sent by the general packet radio service support point SGSN; The wireless packet gateway sends a Create Packet Data Protocol Context Response Create PDP Context Response message to the SGSN,
  • the SGSN sends an address of the wireless packet gateway to the terminal by activating a Packet Data Protocol Context Accepting an Activate PDP Context Accept message.
  • the sending, by the wireless packet gateway, the address of the wireless packet gateway to the terminal includes: the wireless packet gateway receiving a create session request sent by the mobility management entity MME.
  • the wireless packet gateway sends the address of the wireless packet gateway to the MME by creating a session response Create Session Response message, so that the MME sends the address of the wireless packet gateway to the terminal.
  • the address of the wireless packet gateway is carried in a protocol configuration option.
  • the address of the wireless packet gateway is a built-in anchor address of the gateway Gi interface.
  • an embodiment of the present invention provides a terminal, including:
  • An address obtaining unit configured to acquire an address of the wireless packet gateway
  • the connection processing unit is configured to: when the data transmission is abnormal, if the connection between the terminal and the wireless packet gateway is detected according to the address of the wireless packet gateway, the connection is maintained.
  • connection processing unit is further configured to re-establish the connection if the connection between the terminal and the wireless packet gateway is abnormal according to an address of the wireless packet gateway.
  • the address obtaining unit includes:
  • the first sending module is configured to send an active packet data protocol context request. Activate PDP
  • a Context Request message to the SGSN; a first receiving module, configured to receive an Activate PDP Context Accept message sent by the SGSN, where the Activate Packet Data Protocol Context Accept message includes an address of the wireless packet gateway The address of the wireless packet gateway is created by the wireless packet gateway by creating a packet data protocol context response Create PDP A Context Response message is sent to the SGSN.
  • the address obtaining unit includes:
  • a second sending module configured to send an attach request Attach Request message to the mobility management entity MME
  • a second receiving module configured to receive an address of the wireless packet gateway sent by the MME, where the address of the wireless packet gateway is by the wireless
  • the packet gateway sends the session response to the MME by creating a session response Create Session Response message.
  • an embodiment of the present invention provides a wireless packet gateway, including:
  • An address sending unit configured to send an address of the wireless packet gateway to the terminal
  • a detecting receiving unit configured to receive a probe initiated by the terminal according to an address of the wireless packet gateway, and a probe response unit, configured to send a probe response to the terminal, so that the terminal maintains a connection with the wireless packet gateway.
  • the wireless packet gateway further includes:
  • the flow control unit is configured to perform flow control on the probe initiated by the terminal.
  • the address sending unit includes:
  • a first request receiving module configured to receive a create packet data protocol context request Create PDP Context Request message sent by the general packet radio service support point SGSN;
  • a first response sending module configured to send a Create Packet Data Protocol Context Response Create PDP Context Response message to the SGSN, where the Create Packet Data Protocol Context Response includes an address of the Wireless Packet Gateway, to enable the SGSN to activate a packet
  • the data protocol context accepts an Activate PDP Context Accept message to send the address of the wireless packet gateway to the terminal.
  • the address sending unit includes:
  • a second request receiving module configured to receive a Create Session Request message sent by the mobility management entity MME;
  • a second response sending module configured to send an address of the wireless packet gateway to the MME by creating a session response Create Session Response message, so that the MME sends the address of the wireless packet gateway to the terminal.
  • an embodiment of the present invention provides a processing system for abnormal data transmission, including the foregoing terminal and a wireless packet gateway.
  • the embodiment of the present invention passes the terminal root when the data transmission is abnormal. According to the connection status with the wireless packet gateway, whether to initiate the re-establishment connection operation can avoid the invalid operation of the reestablished connection caused by the disconnection or failure of the service server, and reduce the signaling impact on the gateway and related network devices. , reduce the operator's operating costs for equipment.
  • FIG. 1 is a schematic diagram of an embodiment of a method for processing an abnormal data transmission according to the present invention
  • FIG. 2 is a schematic diagram of another embodiment of a method for processing an abnormal data transmission in the present invention.
  • FIG. 3 is a schematic diagram of another embodiment of a method for processing an abnormality of a data transmission according to the present invention
  • FIG. 4 is a schematic diagram of another signaling flow of a method for processing an abnormality of data transmission according to the present invention
  • FIG. 6 is a schematic diagram of an embodiment of a wireless packet gateway in the present invention.
  • FIG. 7 is a schematic diagram of an embodiment of a processing system for abnormal data transmission in the present invention.
  • the embodiment of the invention provides a processing method and related device for data transmission abnormality, which is used for avoiding invalid operation of a reestablished connection caused by disconnection or failure of a service server.
  • the ongoing Internet service is interrupted, and the terminal automatically re-activates to re-establish the connection.
  • the disconnection between the terminal and the service server is not necessarily a problem of carrying the network, but may be disconnected or failed. Therefore, the reactivation of the terminal initiated does not solve the problem.
  • the terminal may initiate multiple reactivations before the service server returns to normal, because the service server is disconnected, and therefore, the service is disconnected.
  • the terminal that establishes the service connection will be disconnected, and before the service server returns to normal, a large number of terminals will be reactivated multiple times within a certain period of time, bringing a relatively large letter to the gateway and related network devices. Let the load.
  • the embodiment of the present invention provides a processing method for data transmission abnormality. The method will be described below from the terminal side.
  • a method for processing a data transmission exception includes:
  • the terminal acquires an address of the wireless packet gateway.
  • the terminal acquires an address of the wireless packet gateway;
  • the wireless packet gateway may be a Gateway General Packet Radio Service Node (GGSN), or a Packet Data Network Gateway (PGW), and the wireless packet gateway may have Network access control System, routing and packet forwarding, user data management and other functions.
  • GGSN Gateway General Packet Radio Service Node
  • PGW Packet Data Network Gateway
  • the terminal learns that the connection between the terminal and the wireless packet gateway is normal according to the address of the wireless packet gateway, the terminal maintains the connection.
  • connection between the terminal and the wireless packet gateway means that the terminal does not re-establish a connection with the wireless packet gateway, for example, the terminal does not initiate an activation PDP context request to the wireless packet gateway, or the terminal does not initiate establishment of a packet data network connection. Process.
  • the abnormality of the data transmission may be: the terminal does not receive the response of the service server after sending the uplink data; or, after the terminal sends the uplink data to the service server, the response of the service server is not received within the preset time; or After the terminal sends the uplink data to the service server, if the response of the service server is not received within the preset time, the uplink data is sent to the service server again. If the number of consecutive uplink data resends exceeds the preset number of times, the terminal does not receive the data.
  • the response to the business server can be considered abnormal.
  • the terminal when the data transmission is abnormal, if the terminal learns that the connection between the terminal and the wireless packet gateway is abnormal according to the address of the wireless packet gateway, the terminal re-establishes a connection between the terminal and the wireless packet gateway.
  • connection between the terminal re-establishment and the wireless packet gateway may be: the terminal initiates an activation PDP context request to the wireless packet gateway, or the terminal initiates a process of establishing a packet network connection to the wireless packet gateway.
  • the terminal may detect whether the connection between the terminal and the wireless packet gateway is abnormal according to the address of the wireless packet gateway, and then decide whether to initiate a reestablishing connection operation. If the connection between the terminal and the wireless packet gateway is abnormal, it may be determined that the abnormality of the data transmission is caused by a connection failure between the terminal and the wireless packet gateway, and the terminal may initiate a reestablishing connection operation at this time to resolve the connection between the terminal and the wireless packet gateway.
  • connection does not initiate a re-establishment connection operation to avoid unnecessary signaling overhead.
  • the terminal determines whether to initiate a reestablishing connection operation according to the connection status with the wireless packet gateway, thereby avoiding disconnection or failure of the service server.
  • the invalid operation of the reestablished connection reduces the signaling impact on the gateway and related network devices, and reduces the operator's operating cost to the device.
  • a method for processing a data transmission exception according to an embodiment of the present invention, as shown in FIG. 2, includes:
  • the wireless packet gateway sends the address of the wireless packet gateway to the terminal.
  • the wireless packet gateway may be a GGSN or a PGW; the wireless packet gateway may have functions such as network access control, routing and packet forwarding, user data management, and the like.
  • the wireless packet gateway receives the detection initiated by the terminal at the address of the wireless packet gateway.
  • the wireless packet gateway receives the probe packet sent by the terminal, where the probe packet is used to detect the relationship between the wireless packet gateway and the terminal. Is the connection normal?
  • the wireless packet gateway sends a probe response to the terminal.
  • the wireless packet gateway sends a probe response to the terminal to maintain the terminal with the wireless packet gateway.
  • the traffic monitoring of the probe packet can be started to prevent the terminal from acquiring the address of the wireless packet wireless packet gateway, and then launching a malicious attack to ensure the security of the wireless packet wireless packet gateway. If the traffic of the probe packet meets the preset condition, the probe packet that is subsequently received is discarded, or the probe packet sent by the specified terminal is discarded.
  • the designated terminal is the terminal that sends the probe packet to the preset threshold.
  • the preset condition may include: 1) monitoring traffic of all the probe packets of the wireless packet gateway, and discarding the subsequently received probe packet when the traffic of all the probe packets reaches a preset threshold; or 2
  • the probe packets sent by the terminals are monitored separately. When the traffic of the probe packets sent by any terminal reaches the preset threshold, the probe packets sent by the terminal are discarded.
  • the data transmission is abnormal, whether to initiate the re-establishment connection operation according to the connection status with the wireless packet gateway, the invalid operation of the re-establishment connection caused by the disconnection or failure of the service server can be avoided, and the gateway and related network are reduced.
  • the signaling impact of the device reduces the operator's operating costs for the device.
  • the following is a method for processing a data transmission exception according to an embodiment of the present invention in a 2G/3G scenario. Description.
  • the wireless packet gateway may be a Gateway GPRS Support Node (GGSN), and the network device between the terminal and the GGSN includes a general packet radio service support node (Serving GPRS Support Node). , SGSN), where GPRS is the generic name of the General Packet Radio Service.
  • the terminal can obtain the address of the wireless packet gateway during the process of activating the PDP context.
  • a method for processing a data transmission exception includes:
  • the terminal sends an activation packet data protocol context request message to the general packet radio service service support node.
  • the terminal establishes and sends an Activate PDP Context Request message to the SGSN.
  • the general packet radio service service support node sends a create packet data protocol context request message to the gateway general packet radio service support node.
  • the SGSN sends a Create PDP Context Request message to the GGSN.
  • the gateway general packet radio service support node sends a create packet data protocol context response message to the general packet radio service service support node.
  • the GGSN sends a Create PDP Context Response message to the SGSN, where the GGSN sends the Create PDP Context Response message to the SGSN to include the address of the GGSN.
  • the address of the GGSN may be the built-in anchor address of the gateway Gi interface (that is, the built-in anchor address of the Gi interface of the GGSN), and the load of the Gn interface may be mitigated by using the GGIA.
  • the address of the GGSN can be carried in the Create PDP Context Response message, in the Protocol Configuration Option (PCO) field.
  • PCO Protocol Configuration Option
  • the general packet radio service service support node sends an activation packet data protocol context accept message to the terminal.
  • the SGSN returns an Activate PDP Context Accept message to the terminal, where the Activate PDP Context Accept message sent by the SGSN to the terminal includes the address of the GGSN obtained by the SGSN from the GGSN.
  • the address of the GGSN can be carried in the PCO field of the Activate PDP Context Accept message.
  • the terminal confirms that the data transmission with the service server is abnormal.
  • the terminal confirms that the data transmission abnormality with the service server may be: 1) the terminal sends the uplink data to the service server, and the response of the service server is not received within a certain time interval (the time interval may be configured in advance); or 2) The terminal sends the uplink data to the service server. After receiving the response from the service server within a certain time interval, the terminal sends the uplink data to the service server again. After the terminal resends the uplink data to the server for more than the preset number of times, If the response from the service server has not been received, the data transmission between the terminal and the service server is abnormal. It can be understood that there are other ways to confirm the abnormality of the data transmission, which is not limited herein.
  • the terminal learns that the connection between the terminal and the GGSN is normal according to the obtained address of the GGSN.
  • the terminal initiates detection according to the address of the gateway general packet radio service support node to the gateway general packet radio service support node.
  • the terminal may send a probe packet to the GGSN according to the address of the GGSN, for example, send a ping packet to the GGSN.
  • the gateway general packet radio service support node returns a probe response to the terminal.
  • the GGSN Since the connection between the terminal and the GGSN is not faulty, the GGSN returns a probe response to the terminal after receiving the probe initiated by the terminal. Exemplarily, the GGSN can respond to the ping packet of the terminal.
  • the terminal maintains a connection with the gateway general packet radio service support node.
  • the terminal After receiving the probe response of the GGSN, the terminal can consider that the connection between the terminal and the GGSN does not fail, and does not initiate the operation of reestablishing the connection with the GGSN.
  • the connection between the terminal and the GGSN may be considered to be faulty, and the terminal may reestablish the connection with the GGSN to repair the connection failure with the GGSN.
  • the GGSN can start the traffic monitoring of the detection packet to prevent the terminal from acquiring the GGSN address and then initiate a malicious attack to ensure the security of the GGSN. If the traffic of the probe packet meets the preset condition, the subsequent received probe packet is discarded, or the probe packet sent by the designated terminal is discarded.
  • the designated terminal is the terminal that sends the probe packet to reach the preset threshold.
  • the foregoing preset conditions may include: 1) the traffic of all the detection packets of the GGSN Line monitoring, when the traffic of all the probe packets reaches the preset threshold, discards the subsequently received probe packets; or 2) monitors the probe packets sent by each terminal separately, when the probe packets sent by any terminal When the traffic reaches the preset threshold, the probe packets sent by the terminal are discarded.
  • the method for processing the data transmission abnormality provided by the embodiment shown in FIG. 3, when the data transmission is abnormal, the terminal determines whether to initiate the re-establishment connection operation according to the connection status with the GGSN, thereby avoiding the disconnection or failure of the service server.
  • the invalid operation of the reconstructed connection reduces the signaling impact on the gateway and related network devices, and reduces the operator's operating cost to the device.
  • the following describes the processing method of the data transmission abnormality in the embodiment of the present invention in the scenario of 4G.
  • the wireless packet gateway can be a packet data network gateway (Packet Data).
  • Packet Data Packet Data
  • a method for processing an abnormal data transmission includes: 401.
  • a terminal sends an attach request to an evolved base station.
  • the terminal sends an Attach Request message to the eNodeB to initiate an attach procedure.
  • the evolved base station forwards the attach request message to the mobility management entity.
  • the eNodeB sends an Attach Request message to the MME.
  • the mobility management entity sends a create session request message to the serving gateway.
  • the MME sends a Create Session Request message to the S-GW.
  • the service gateway forwards the create session request message to the packet data network gateway.
  • the S-GW sends a Create Session Request message to the P-GW.
  • the packet data network gateway sends a create session response message to the serving gateway.
  • the P-GW sends a Create Session Response message to the S-GW.
  • the Create Session Response message carries the address of the P-GW.
  • the address of the P-GW may be a built-in anchor address of the gateway Gi interface (that is, a built-in anchor address of the SGi interface of the P-GW), and the address of the P-GW may be carried in the PCO field of the Create Session Response message.
  • the service gateway forwards the create session response message to the mobility management entity.
  • the S-GW sends a Create Session Response message to the MME, where the Create Session The Response message carries the address of the P-GW.
  • the mobility management entity sends an attach response message to the evolved base station.
  • the MME sends an Attach Response message to the eNodeB.
  • the Attach Response message carries the address of the P-GW in the Create Session Response message.
  • the evolved base station sends a radio resource control protocol connection configuration update message to the terminal, where the eNodeB sends an RRC Connection Reconfiguration message to the terminal, where
  • the Connection Reconfiguration message carries the address of the P-GW in the Attach Response message.
  • the terminal confirms that the data transmission with the service server is abnormal.
  • the terminal confirms that the data transmission abnormality with the service server may be: 1) the terminal sends the uplink data to the service server, and the response of the service server is not received within a certain time interval (the time interval may be configured in advance); or 2) The terminal sends the uplink data to the service server. After receiving the response from the service server within a certain time interval, the terminal sends the uplink data to the service server again. After the terminal resends the uplink data to the server for more than the preset number of times, If the response from the service server has not been received, the data transmission between the terminal and the service server is abnormal. It can be understood that there are other ways to confirm the data transmission exception, which is not limited herein.
  • steps 410-411 the terminal learns that the connection between the terminal and the P-GW is normal according to the obtained address of the P-GW.
  • the terminal initiates detection according to the address of the packet data network gateway to the packet data network gateway.
  • the terminal detects whether the connection between the terminal and the P-GW is normal according to the address of the P-GW.
  • the terminal may send a probe packet to the P-GW according to the address of the P-GW to determine whether the connection between the terminal and the P-GW is normal, for example, send the Ping packet to the P-GW according to the address of the P-GW. , determine whether the response returned by the P-GW is received within the preset time. If yes, the connection between the terminal and the P-GW is not abnormal, and the connection between the terminal and the wireless packet gateway may not be re-established; if not, the connection between the terminal and the P-GW is abnormal, and the terminal and the P-GW need to be re-established. Connection.
  • the packet data network gateway returns a probe response to the terminal.
  • the P-GW Since the connection between the terminal and the P-GW is not faulty, the P-GW returns a probe response to the terminal after receiving the probe initiated by the terminal. Exemplarily, the P-GW can enter the Ping packet of the terminal. Line response.
  • the terminal maintains a connection with the packet data network gateway.
  • the terminal After receiving the probe response of the P-GW, the terminal can consider that the connection between the terminal and the P-GW does not fail, and does not initiate the operation of reestablishing the connection with the P-GW.
  • the connection between the terminal and the P-GW may be considered to be faulty, and the terminal may reestablish the connection with the P-GW to repair the relationship with the P-GW. Connection failure.
  • the P-GW may start the traffic monitoring of the probe packet to prevent the terminal from acquiring the address of the P-GW, and then initiate a malicious attack to ensure the P-GW. Safety. If the traffic of the probe packet meets the preset condition, the subsequent received probe packet is discarded, or the probe packet sent by the designated terminal is discarded.
  • the designated terminal is the terminal that sends the probe packet to reach the preset threshold.
  • the foregoing preset conditions may include: 1) monitoring traffic of all the detection packets of the P-GW, and discarding the subsequently received detection packets when the traffic of all the detection packets reaches a preset threshold; or 2
  • the probe packets sent by the terminals are monitored separately. When the traffic of the probe packets sent by any terminal reaches the preset threshold, the probe packets sent by the terminal are discarded.
  • the method for processing the data transmission abnormality provided by the embodiment shown in FIG. 4, when the data transmission is abnormal, the terminal determines whether to initiate the re-establishment connection operation according to the connection status with the P-GW, thereby avoiding disconnection due to the service server or The invalid operation of the reestablished connection caused by the failure reduces the signaling impact on the gateway and related network devices, and reduces the operator's operating cost to the device.
  • the terminal for performing the data transmission abnormality processing method provided by the embodiment of the present invention is described below.
  • the terminal provided by the embodiment of the present invention includes:
  • An address obtaining unit 501 configured to acquire an address of the wireless packet gateway
  • the connection processing unit 502 is configured to: when the data transmission is abnormal, if the connection between the terminal and the wireless packet gateway is detected according to the address of the wireless packet gateway, the connection is maintained.
  • connection processing unit 502 is further configured to re-establish the connection if the connection between the terminal and the wireless packet gateway is abnormal according to the address of the wireless packet gateway.
  • the address obtaining unit 501 includes:
  • the first sending module 5011 is configured to send an activation packet data protocol context request Activate PDP Context Request message to the SGSN;
  • the first receiving module 5012 is configured to receive an Activate PDP Context Accept message sent by the SGSN, where the Activate Packet Data Protocol Context Accept message includes an address of the wireless packet gateway, where the address of the wireless packet gateway is the wireless packet
  • the gateway sends the packet to the SGSN by creating a packet data protocol context response Create PDP Context Response message.
  • the address obtaining unit 501 includes:
  • the second sending module 5013 is configured to send an attach request Attach Request message to the mobility management entity MME;
  • the second receiving module 5014 is configured to receive an address of the wireless packet gateway sent by the MME, where the address of the wireless packet gateway is sent by the wireless packet gateway to the MME by creating a session response Create Session Response message.
  • the address obtaining unit 501 acquires an address of the wireless packet gateway.
  • the wireless packet gateway may be a GGSN or a P-GW, and the wireless packet gateway may have functions such as network access control, routing and packet forwarding, and user data management. It should be understood by those skilled in the art that, as the wireless network is developed, the wireless packet gateway may be other network elements, which is not limited in this embodiment of the present invention.
  • the connection between the terminal and the wireless packet gateway means that the terminal does not re-establish the connection with the wireless packet gateway, for example, the terminal does not An activation PDP context request is initiated to the wireless packet gateway, or the terminal does not initiate a process of establishing a packet data network connection to the wireless packet gateway.
  • the abnormality of the data transmission may be: the terminal does not receive the response of the service server after sending the uplink data; or, after the terminal sends the uplink data to the service server, the response of the service server is not received within the preset time; or After the terminal sends the uplink data to the service server, if the response of the service server is not received within the preset time, the uplink data is sent to the service server again. If the number of consecutive uplink data resends exceeds the preset number of times, the terminal does not receive the data.
  • the response to the business server can be considered abnormal.
  • the process of the address obtaining unit 501 acquiring the address of the wireless packet gateway may be:
  • the first sending module 5011 of the address obtaining unit 501 sends an Activate PDP Context Request message to the SGSN to establish a connection with the GGSN.
  • the SGSN After receiving the Activate PDP Context Request message, the SGSN sends a Create PDP Context Request message to the GGSN.
  • the Create PDP Context Request message is sent to the SGSN, where the GGSN sends the Create PDP Context Response message to the SGSN to include the address of the GGSN.
  • the address of the GGSN may be a built-in anchor address of the gateway Gi interface, and the GGIA may be carried in a Protocol Configuration Option (PCO) field of the Create PDP Context Response message.
  • PCO Protocol Configuration Option
  • the first receiving module 5012 of the address obtaining unit 501 receives the Activate PDP Context Accept message returned by the SGSN, where the Activate PDP Context Accept message sent by the SGSN to the terminal includes the GGSN acquired by the SGSN from the GGSN. the address of.
  • the address of the GGSN may be carried in the PCO field of the Activate PDP Context Accept message.
  • the process of the address obtaining unit 501 acquiring the address of the wireless packet gateway may be: the second sending module 5013 of the address obtaining unit 501 sends an Attach Request message to the eNodeB, and initiates an attach procedure.
  • the eNodeB sends an Attach Request message to the MME.
  • the MME sends a Create Session Request message to the S-GW.
  • the S-GW sends a Create to the P-GW.
  • the P-GW receives the Create Session Request message
  • the P-GW sends a Create Session Response message to the S-GW.
  • the Create Session Response message carries the address of the P-GW.
  • the address of the P-GW can be the gateway.
  • the Gi interface has an anchor address (that is, the built-in anchor address of the P-GW's SGi interface).
  • the address of the P-GW can be carried in the PCO field of the Create Session Response message.
  • the S-GW After receiving the Create Session Response message, the S-GW sends a Create Session Response message to the MME.
  • the MME After receiving the Create Session Response message, the MME sends an Attach Response message to the eNodeB.
  • the Attach Response message carries the P in the Create Session Response message. -GW's address.
  • the second receiving module 5014 of the address obtaining unit 501 receives the RRC Connection Reconfiguration message sent by the eNodeB, where the RRC Connection Reconfiguration message carries the P-GW in the Attach Response message. the address of.
  • the terminal may detect whether the connection between the terminal and the wireless packet gateway is abnormal according to the address of the wireless packet gateway, and then decide whether to initiate a reestablishing connection operation. If the connection between the terminal and the wireless packet gateway is abnormal, it may be determined that the abnormality of the data transmission is caused by a connection failure between the terminal and the wireless packet gateway, and the terminal may initiate a reestablishing connection operation at this time to resolve the connection between the terminal and the wireless packet gateway.
  • connection does not initiate a re-establishment connection operation to avoid unnecessary signaling overhead.
  • the wireless packet gateway for performing the data transmission exception processing method provided by the embodiment of the present invention.
  • the wireless packet gateway provided by the embodiment of the present invention includes:
  • An address sending unit 601, configured to send an address of the wireless packet gateway to the terminal;
  • the probe receiving unit 602 is configured to receive a probe initiated by the terminal according to an address of the wireless packet gateway, and the probe response unit 603 is configured to send a probe response to the terminal, so that the terminal maintains a connection with the wireless packet gateway.
  • the wireless packet gateway further includes:
  • the flow control unit 604 is configured to perform flow control on the probe initiated by the terminal.
  • the address sending unit 601 includes:
  • the first request receiving module 6011 is configured to receive a Create PDP Context Request message sent by the General Packet Radio Service Support Point (SGSN) to create a PDP Context Request message;
  • SGSN General Packet Radio Service Support Point
  • the first response sending module 6012 is configured to send a Create Packet Data Protocol Context Response Create PDP Context Response message to the SGSN, where the Create Packet Data Protocol Context Response includes an address of the wireless packet gateway, so that the SGSN accepts the Activate PDP by activating the Packet Data Protocol Context.
  • the Context Accept message sends the address of the wireless packet gateway to the terminal.
  • the address sending unit 601 includes:
  • a second request receiving module 6013 configured to receive a creation session sent by the mobility management entity MME Request a Create Session Request message
  • the second response sending module 6014 is configured to send the address of the wireless packet gateway to the MME by creating a session response Create Session Response message, so that the MME sends the address of the wireless packet gateway to the terminal.
  • the address sending unit 601 sends the address of the wireless packet gateway to the terminal.
  • the wireless packet gateway may be a GGSN or a PGW, and the wireless packet gateway may have functions such as network access control, routing selection, packet forwarding, and user data management.
  • the probe receiving unit 602 receives the probe packet sent by the terminal, and the probe packet is used to detect whether the connection between the wireless packet gateway and the terminal is normal.
  • the probe response unit 603 sends a probe response to the terminal to cause the terminal to maintain a connection with the wireless packet gateway.
  • the 604 can initiate traffic monitoring of the probe packet to prevent the terminal from acquiring the address of the wireless packet wireless packet gateway, and then initiate a malicious attack to ensure the security of the wireless packet wireless packet gateway. If the traffic of the probe packet meets the preset condition, the probe packet that is subsequently received is discarded, or the probe packet sent by the specified terminal is discarded.
  • the designated terminal is the terminal that sends the probe packet to reach the preset threshold.
  • the preset condition may include: 1) monitoring traffic of all the probe packets of the wireless packet gateway, and discarding the subsequently received probe packet when the traffic of all the probe packets reaches a preset threshold; or 2
  • the probe packets sent by the terminals are monitored separately. When the traffic of the probe packets sent by any terminal reaches the preset threshold, the probe packets sent by the terminal are discarded.
  • the first request receiving module 6011 of the address sending unit 601 may receive the create packet data protocol context request Create PDP Context Request message sent by the general packet radio service support point SGSN;
  • the response sending module 6012 sends a Create Packet Data Protocol Context Response Create PDP Context Response message to the SGSN, and the Created Data Protocol Context accepts an Activate PDP Context Accept message to send the address of the Wireless Packet Gateway to the terminal.
  • the second request receiving module 6013 of the address sending unit 601 may be used. Receiving a create session request Create Session Request message sent by the mobility management entity MME; the second response sending module 6014 sends the address of the wireless packet gateway to the MME by creating a session response Create Session Response message, so that the MME sends the wireless packet gateway to the terminal. the address of.
  • the data transmission is abnormal, whether to initiate the re-establishment connection operation according to the connection status with the wireless packet gateway, the invalid operation of the re-establishment connection caused by the disconnection or failure of the service server can be avoided, and the gateway and related network are reduced.
  • the signaling impact of the device reduces the operator's operating costs for the device.
  • An embodiment of the present invention further provides a processing system for data transmission abnormality.
  • the system includes: a wireless packet gateway 701 and a terminal 702.
  • the wireless packet gateway 701 can be the wireless device shown in FIG.
  • the packet gateway, the terminal 702 may be the terminal shown in FIG. 6.
  • the terminal determines whether to initiate the re-establishment connection operation according to the connection status with the wireless packet gateway, thereby avoiding the invalid operation of the reestablished connection caused by the disconnection or failure of the service server, and reducing the invalid operation.
  • the signaling impact on the gateway and related network devices reduces the operator's operating costs for the equipment.
  • the disclosed apparatus and method can be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
  • the units described as separate components may or may not be physically separate, and the components displayed as the units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
  • each functional unit in various embodiments of the present invention may be integrated in one processing unit. It is also possible that each unit physically exists alone, or two or more units may be integrated in one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

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Description

一种数据传输异常的处理方法、 设备和系统 技术领域
本发明实施例涉及通信领域, 尤其涉及一种数据传输异常的处理方法、设 备和系统。
背景技术
随着移动宽带的快速发展,目前越来越多的客户通过终端上网来进行业务 访问。在终端与业务服务器进行业务访问的过程中, 若被访问的业务服务器与 终端断连, 则终端为了尝试恢复业务, 终端会进行重新激活操作, 即向网关发 送激活请求, 重新建立分组数据协议(Packet Data Protocol, PDP )上下文, 以 便重新和业务服务器建立业务连接。
在实际应用中,通信网络中存在大量无效的重激活操作,给网关及相关的 网络设备带来较大的信令负荷。 发明内容
鉴于此,本发明实施例提供了一种数据传输异常的处理方法、设备和系统, 用以避免由于业务服务器断连或故障而引起的重建连接的无效操作,减少对网 关及相关的网络设备的信令沖击, 降低运营商对设备的运营成本。
一方面, 本发明一实施例提供一种数据传输异常的处理方法, 包括: 终端获取无线分组网关的地址;
当数据传输异常时,若终端根据无线分组网关的地址获知终端与无线分组 网关的连接正常, 终端保持该连接。
可选的, 所述方法还包括:
当数据传输异常时,若所述终端根据所述无线分组网关的地址获知所述终 端与所述无线分组网关的连接异常, 所述终端重新建立所述连接。
可选的,所述终端根据所述无线分组网关的地址获知所述终端与所述无线 分组网关的连接异常, 包括: 所述终端在预置时间内未接收到所述无线分组网关的探测响应。 可选的, 所述终端获取无线分组网关的地址, 包括:
所述终端发送激活分组数据协议上下文请求 Activate PDP Context Request 消息至通用分组无线服务支持点 SGSN;所述终端接收所述 SGSN发送的激活 分组数据协议上下文接受 Activate PDP Context Accept消息, 所述激活分组数 据协议上下文接受消息包括所述无线分组网关的地址,所述无线分组网关的地 址是由所述无线分组网关通过创建分组数据协议上下文响应 Create PDP Context Response消息发送至所述 SGSN的。
可选的, 所述终端获取无线分组网关的地址, 包括:
所述终端发送附着请求 Attach Request消息至移动管理实体 MME; 所述 终端接收所述 MME发送的无线分组网关的地址,所述无线分组网关的地址是 由所述无线分组网关通过创建会话响应 Create Session Response消息发送至所 述 MME的。
可选的, 所述无线分组网关的地址携带在协议配置选项 Protocol Configuration Options信元中。
可选的,所述终端根据所述无线分组网关的地址获知所述终端与所述无线 分组网关的连接正常, 包括: 述终端在预置时间内接收到所述无线分组网关的探测响应。
可选的,所述终端根据所述无线分组网关的地址获知所述终端与所述无线 分组网关的连接正常之前, 还包括:
所述终端发送上行数据至业务服务器;若所述终端未收到所述业务服务器 的响应, 所述终端确定数据传输异常。
可选的, 所述无线分组网关的地址为网关 Gi接口内置锚点地址。
另一方面, 本发明一实施例提供另一种数据传输异常的处理方法, 包括: 无线分组网关发送无线分组网关的地址至终端;
无线分组网关接收终端根据无线分组网关的地址发起的探测;
无线分组网关发送探测响应至终端, 以使终端保持与无线分组网关的连 接。
可选的, 所述方法还包括: 所述无线分组网关对所述终端发起的探测进行流控。
可选的, 所述无线分组网关发送所述无线分组网关的地址至终端, 包括: 所述无线分组网关接收通用分组无线服务支持点 SGSN发送的创建分组 数据协议上下文请求 Create PDP Context Request消息;所述无线分组网关发送 创建分组数据协议上下文响应 Create PDP Context Response消息至所述 SGSN,
SGSN通过激活分组数据协议上下文接受 Activate PDP Context Accept消息发 送所述无线分组网关的地址至所述终端。
可选的, 所述无线分组网关发送所述无线分组网关的地址至终端, 包括: 所述无线分组网关接收移动管理实体 MME发送的创建会话请求 Create
Session Request消息;
所述无线分组网关通过创建会话响应 Create Session Response消息将所述 无线分组网关的地址发送至所述 MME, 以使所述 MME向所述终端发送所述 无线分组网关的地址。
可选的, 所述无线分组网关的地址携带在协议配置选项 Protocol
Configuration Options信元中。
可选的, 所述无线分组网关的地址为网关 Gi接口内置锚点地址。
又一方面, 本发明一实施例提供一种终端, 包括:
地址获取单元, 用于获取无线分组网关的地址;
连接处理单元, 用于当数据传输异常时, 若根据无线分组网关的地址检测 到终端与无线分组网关的连接正常, 保持该连接。
可选的,所述连接处理单元还用于若根据所述无线分组网关的地址检测到 所述终端与所述无线分组网关的连接异常, 重新建立所述连接。
可选的, 所述地址获取单元包括:
第一发送模块, 用于发送激活分组数据协议上下文请求 Activate PDP
Context Request消息至 SGSN; 第一接收模块, 用于接收所述 SGSN发送的激 活分组数据协议上下文接受 Activate PDP Context Accept消息, 所述激活分组 数据协议上下文接受消息包括所述无线分组网关的地址,所述无线分组网关的 地址是由所述无线分组网关通过创建分组数据协议上下文响应 Create PDP Context Response消息发送至所述 SGSN的。
可选的, 所述地址获取单元包括:
第二发送模块, 用于发送附着请求 Attach Request 消息至移动管理实体 MME; 第二接收模块, 用于接收所述 MME发送的无线分组网关的地址, 所 述无线分组网关的地址是由所述无线分组网关通过创建会话响应 Create Session Response消息发送至所述 MME的。
再一方面, 本发明一实施例提供一种无线分组网关, 包括:
地址发送单元, 用于发送无线分组网关的地址至终端;
探测接收单元, 用于接收终端根据无线分组网关的地址发起的探测; 探测响应单元, 用于发送探测响应至终端, 以使终端保持与无线分组网关 的连接。
可选的, 所述无线分组网关还包括:
流控单元, 用于对所述终端发起的探测进行流控。
可选的, 所述地址发送单元包括:
第一请求接收模块,用于接收通用分组无线服务支持点 SGSN发送的创建 分组数据协议上下文请求 Create PDP Context Request消息;
第一响应发送模块, 用于发送创建分组数据协议上下文响应 Create PDP Context Response消息至所述 SGSN, 所述创建分组数据协议上下文响应包括 所述无线分组网关的地址,以使所述 SGSN通过激活分组数据协议上下文接受 Activate PDP Context Accept消息发送所述无线分组网关的地址至所述终端。
可选的, 所述地址发送单元包括:
第二请求接收模块, 用于接收移动管理实体 MME发送的创建会话请求 Create Session Request消息;
第二响应发送模块, 用于通过创建会话响应 Create Session Response消息 将所述无线分组网关的地址发送至所述 MME , 以使所述 MME向所述终端发 送所述无线分组网关的地址。
再一方面, 本发明一实施例提供一种数据传输异常的处理系统, 包括上述 终端和无线分组网关。
从以上技术方案可以看出, 本发明实施例通过在数据传输异常时, 终端根 据与无线分组网关之间的连接状况来决定是否发起重建连接操作,可以避免由 于业务服务器断连或故障而引起的重建连接的无效操作,减少了对网关及相关 的网络设备的信令沖击, 降低运营商对设备的运营成本。
附图说明
图 1为本发明中数据传输异常的处理方法一实施例示意图;
图 2为本发明中数据传输异常的处理方法另一实施例示意图;
图 3为本发明中数据传输异常的处理方法另一个实施例示意图; 图 4为本发明中数据传输异常的处理方法另一信令流程示意图; 图 5为本发明中终端一实施例示意图;
图 6为本发明中无线分组网关一实施例示意图;
图 7为本发明中数据传输异常的处理系统一实施例示意图。
具体实施方式
本发明实施例提供了一种数据传输异常的处理方法及相关装置,用于避免 由于业务服务器断连或故障而引起的重建连接的无效操作。
在实际应用中,正在进行的上网业务中断, 终端会自动进行重新激活以重 建连接, 然而, 终端和业务服务器之间断连, 不一定是承载网络的问题, 而有 可能是业务服务器断连或故障, 因此, 终端发起的重新激活并无法解决这个问 题。 在现有技术中, 若是因为业务服务器断连或故障而导致的断连, 则业务服 务器恢复正常之前, 终端会发起多次的重新激活, 由于是业务服务器导致的断 连, 因此, 与该业务服务器建立业务连接的终端都会断连, 而业务服务器恢复 正常之前, 就将会有大量的终端在一定的时间段内进行多次的重新激活,给网 关及相关的网络设备带来比较大的信令负荷。
鉴于此, 本发明实施例提供一种数据传输异常的处理方法。 下面将从终端 侧对该方法进行说明。
请参阅图 1 , 本发明一实施例提供的数据传输异常的处理方法, 包括:
101、 终端获取无线分组网关的地址;
终端获取无线分组网关的地址;该无线分组网关可以为网关通用分组无线 服务支持点 (Gateway GPRS Support Node, GGSN ), 或分组数据网网关 ( Packet Data Network Gateway, PGW ) , 该无线分组网关可以具有网络接入控 制、 路由选择和分组的转发、 用户数据管理等功能。
102、 当数据传输异常时, 若终端根据无线分组网关的地址获知终端与无 线分组网关的连接正常, 该终端保持该连接。
其中,终端保持与无线分组网关之间的连接是指终端不重新建立与无线分 组网关之间的连接, 例如, 终端不向无线分组网关发起激活 PDP上下文请求, 或者终端不发起建立分组数据网连接的流程。
示例性的,数据传输异常可以为: 终端发送上行数据后收不到业务服务器 的响应; 或者, 当终端向业务服务器发送上行数据之后, 在预置时间内收不到 业务服务器的响应; 或者, 当终端向业务服务器发送上行数据之后, 若在预置 时间内收不到业务服务器的响应,再次向该业务服务器发送上行数据, 若连续 重新发送上行数据的次数超过预置次数之后,还未收到业务服务器的响应, 则 可认为数据传输异常。
可选的, 当数据传输异常时, 若终端根据无线分组网关的地址获知终端与 无线分组网关的连接异常, 终端重新建立终端与无线分组网关之间的连接。
示例性的, 终端重新建立与无线分组网关之间的连接可以是: 终端向无线 分组网关发起激活 PDP上下文请求, 或者终端向无线分组网关发起建立分组 网连接的流程。
由于业务服务器的故障, 或终端和无线分组网关(含无线分组网关)之间 的设备故障都可以导致数据传输异常,而重建连接的操作只能解决终端和无线 分组网关间的连接故障的问题, 因此, 为了减少无效的信令开销, 终端可根据 无线分组网关的地址检测终端与无线分组网关的连接是否异常,再决定是否发 起重建连接操作。若终端与无线分组网关的连接异常, 则可以确定此次数据传 输异常是由终端和无线分组网关的连接故障引起的,终端此时可发起重建连接 操作以解决终端与无线分组网关之间的连接故障;若终端与无线分组网关的连 接正常, 则可以确定业务连接故障是由业务服务器的故障引起的, 终端即使发 起重建连接操作也无法排除该故障,因此终端可以保持与无线分组网关之间的 连接, 不发起重建连接操作, 以避免不必要的信令的开销。
本发明实施例通过在数据传输异常时,终端根据与无线分组网关之间的连 接状况来决定是否发起重建连接操作,可以避免由于业务服务器断连或故障而 引起的重建连接的无效操作, 减少了对网关及相关的网络设备的信令沖击, 降 低运营商对设备的运营成本。
下面将从无线分组网关侧对本发明实施例提供的数据传输异常的处理方 法进行说明。
本发明一实施例提供的数据传输异常的处理方法, 如图 2所示, 包括:
201、 无线分组网关发送无线分组网关的地址至终端;
该无线分组网关可以为 GGSN或 PGW; 该无线分组网关可以具有网络接 入控制、 路由选择和分组的转发、 用户数据管理等功能。
202、 无线分组网关接收终端 居无线分组网关的地址发起的探测; 当终端的数据传输发生异常时, 无线分组网关接收终端发送的探测包, 该 探测包用于检测无线分组网关与终端之间的连接是否正常。
203、 无线分组网关发送探测响应至终端。
无线分组网关发送探测响应至终端, 以使终端保持与无线分组网关的连 接。 关可以启动对探测包的流量监控,以防止终端获取无线分组无线分组网关的地 址后, 发起恶意攻击, 确保无线分组无线分组网关的安全。 若探测包的流量满 足预置条件,则丟弃后续接收到的探测包,或丟弃指定终端后续发送的探测包, 其中, 该指定终端为发送探测包的流量达到预置门限的终端。
示例性的, 上述预置条件可以包括: 1 )对无线分组网关的所有探测包的 流量进行监控, 当所有探测包的流量达到预置门限时,丟弃后续接收到的探测 包; 或者, 2 )分别对各个终端所发送的探测包进行监控, 当任一终端所发送 的探测包的流量达到预置门限时, 则丟弃该终端后续发送的探测包。 在数据传输异常时,根据与无线分组网关之间的连接状况来决定是否发起重建 连接操作, 可以避免由于业务服务器断连或故障而引起的重建连接的无效操 作, 减少了对网关及相关的网络设备的信令沖击, 降低运营商对设备的运营成 本。
下面在 2G/3G场景下, 对本发明实施例的数据传输异常的处理方法进行 说明。
以 2G/3G 的网络场景为例, 无线分组网关可以为网关 GPRS 支持节点 ( Gateway GPRS Support Node, GGSN ) ,终端与 GGSN之间的网络设备包括有 通用分组无线服务业务支持节点( Serving GPRS Support Node, SGSN ), 其中 GPRS是通用分组无线业务( General Packet Radio Service ) 的筒称。 终端可以 在激活 PDP上下文的过程中获取到无线分组网关的地址。请参阅图 3,本发明 一实施例提供的数据传输异常的处理方法, 包括:
301、 终端向通用分组无线服务业务支持节点发送激活分组数据协议上下 文请求消息;
终端通过向 SGSN发送 Activate PDP Context Request 消息, 以建立与
GGSN之间的连接。
302、 通用分组无线服务业务支持节点发送创建分组数据协议上下文请求 消息至网关通用分组无线业务支持节点;
SGSN向 GGSN发送 Create PDP Context Request消息。
303、 网关通用分组无线业务支持节点发送创建分组数据协议上下文响应 消息至通用分组无线服务业务支持节点;
GGSN向 SGSN发送 Create PDP Context Response消息, 其中, GGSN向 SGSN发送的 Create PDP Context Response消息中包括 GGSN的地址。 示例性 的, GGSN的地址可以是网关 Gi接口内置锚点地址(即 GGSN的 Gi接口的 内置锚点地址 ), 采用 GGIA可以减轻 Gn接口的负载。 GGSN的地址可以携 带在 Create PDP Context Response消息、的十办议酉己置选项 ( Protocol Configuration Option, PCO ) 字段中。
304、 通用分组无线服务业务支持节点发送激活分组数据协议上下文接受 消息至终端;
SGSN向终端返回 Activate PDP Context Accept消息, 其中, SGSN向终端 发送的 Activate PDP Context Accept消息中包括 SGSN从 GGSN获取的 GGSN 的地址。 示例性的, GGSN的地址可以携带在 Activate PDP Context Accept消 息的 PCO字段中。
305、 终端确认与业务服务器的数据传输出现异常; 示例性的, 终端确认与业务服务器的数据传输异常可以为: 1 )终端向业 务服务器发送上行数据, 在一定的时间间隔内 (该时间间隔可事先配置)未收 到业务服务器的响应; 或者, 2 )终端向业务服务器发送上行数据, 在一定时 间间隔内未收到业务服务器的响应后, 终端重新向业务服务器发送上行数据, 当终端重发上行数据至服务器的次数超过预设的次数后,仍未收到业务服务器 的响应, 则可确认终端与业务服务器的数据传输异常。 可以理解的是, 确认数 据传输异常还可以有其它的方式, 具体此处不作限定。
步骤 306-307中, 终端根据获得的 GGSN的地址获知终端与 GGSN的连 接正常。
306、 终端根据网关通用分组无线业务支持节点的地址向网关通用分组无 线业务支持节点发起探测;
示例性的, 终端可以根据 GGSN 的地址向 GGSN发送探测包, 例如向 GGSN发送 Ping数据包。
307、 网关通用分组无线业务支持节点向终端返回探测响应;
由于终端与 GGSN之间的连接没有故障, 所以 GGSN在收到终端发起的 探测后, 向终端返回探测响应。 示例性的, GGSN可以对终端的 Ping数据包 进行响应。
308、 终端保持与网关通用分组无线业务支持节点之间的连接。
终端接收到 GGSN的探测响应后, 可以认为终端与 GGSN之间的连接没 有出现故障, 而不发起重建与 GGSN之间的连接的操作。
可选的, 若终端没有收到 GGSN的探测响应, 可以认为终端与 GGSN之 间的连接出现故障, 终端可以重建与 GGSN之间的连接以修复与 GGSN之间 的连接故障。
可选的, 在 GGSN向终端发送 GGSN的地址之后, GGSN可以启动对探 测包的流量监控,以防止终端获取 GGSN的地址后,发起恶意攻击,确保 GGSN 的安全。 若该探测包的流量满足预置条件, 则丟弃后续接收到的探测包, 或丟 弃指定终端后续发送的探测包, 其中, 该指定终端为发送探测包的流量达到预 置门限的终端。
示例性的, 上述预置条件可以包括: 1 )对 GGSN的所有探测包的流量进 行监控, 当所有探测包的流量达到预置门限时, 丟弃后续接收到的探测包; 或 者, 2 )分别对各个终端所发送的探测包进行监控, 当任一终端所发送的探测 包的流量达到预置门限时, 则丟弃该终端后续发送的探测包。
图 3所示的实施例提供的数据传输异常的处理方法,通过在数据传输异常 时, 终端根据与 GGSN之间的连接状况来决定是否发起重建连接操作, 可以 避免由于业务服务器断连或故障而引起的重建连接的无效操作,减少了对网关 及相关的网络设备的信令沖击, 降低运营商对设备的运营成本。
下面在 4G的场景下, 对本发明实施例的数据传输异常的处理方法进行说 明。
以 4G的网络场景为例,无线分组网关可以为分组数据网网关(Packet Data
Network Gateway, P-GW ), 终端与 P-GW之间的网络设备包括有演进型基站 ( eNodeB ), 移动管理实体( Mobility Management Entity, MME )和服务网关 ( Serving Gateway, S-GW ), 终端可以在附着的过程中获取到无线分组网关的 地址。 请参阅图 4, 本发明一实施例提供的数据传输异常的处理方法, 包括: 401、 终端向演进型基站发送附着请求;
终端向 eNodeB发送 Attach Request消息, 发起附着流程。
402、 演进型基站将附着请求消息转发给移动管理实体;
eNodeB向 MME发送 Attach Request消息。
403、 移动管理实体向服务网关发送创建会话请求消息;
MME向 S-GW发送 Create Session Request消息。
404、 服务网关将创建会话请求消息转发给分组数据网网关;
S-GW向 P-GW发送 Create Session Request消息。
405、 分组数据网网关向服务网关发送创建会话响应消息;
P-GW向 S-GW发送 Create Session Response消息; 其中, Create Session Response消息中携带有 P-GW的地址。 示例性的, P-GW的地址可以为网关 Gi接口内置锚点地址(即 P-GW的 SGi接口的内置锚点地址 ) , P-GW的地址 可以携带在 Create Session Response消息的 PCO字段中。
406、 服务网关将创建会话响应消息转发给移动管理实体;
S-GW向 MME发送 Create Session Response消息, 其中该 Create Session Response消息中携带有 P-GW的地址。
407、 移动管理实体向演进型基站发送附着响应消息;
MME向 eNodeB发送 Attach Response消息; 其中, Attach Response消息 中携带有 Create Session Response消息中的 P-GW的地址。
408、 演进型基站向终端发送无线资源控制协议连接配置更新消息; eNodeB向终端发送 RRC Connection Reconfiguration消息; 其中, RRC
Connection Reconfiguration消息中携带有 Attach Response消息中的 P-GW的地 址。
409、 终端确认与业务服务器的数据传输出现异常;
示例性的, 终端确认与业务服务器的数据传输异常可以为: 1 )终端向业 务服务器发送上行数据, 在一定的时间间隔内 (该时间间隔可事先配置)未收 到业务服务器的响应; 或者, 2 )终端向业务服务器发送上行数据, 在一定时 间间隔内未收到业务服务器的响应后, 终端重新向业务服务器发送上行数据, 当终端重发上行数据至服务器的次数超过预设的次数后,仍未收到业务服务器 的响应, 则可确认终端与业务服务器的数据传输异常。 可以理解的是, 确认数 据传输异常还可以有其它的方式, 具体此处不作限定。
步骤 410-411中,终端根据获得的 P-GW的地址获知终端与 P-GW的连接 正常。
410、 终端根据分组数据网网关的地址向分组数据网网关发起探测; 当数据传输异常时,终端根据 P-GW的地址检测终端与 P-GW的连接是否 正常。
示例性的,终端可以根据 P-GW的地址向 P-GW发送探测包来判断终端与 P-GW之间的连接是否正常,例如向终端根据 P-GW的地址向 P-GW发送 Ping 数据包, 判断在预置时间内是否接收到 P-GW返回的响应。 若是, 则终端与 P-GW的连接没有异常, 可以不重新建立终端与无线分组网关之间的连接; 若 否, 则终端与 P-GW的连接异常, 需要重新建立终端和 P-GW之间的连接。
411、 分组数据网网关向终端返回探测响应;
由于终端与 P-GW之间的连接没有故障,所以 P-GW在收到终端发起的探 测后, 向终端返回探测响应。 示例性的, P-GW可以对终端的 Ping数据包进 行响应。
412、 终端保持与分组数据网网关之间的连接。
终端接收到 P-GW的探测响应后,可以认为终端与 P-GW之间的连接没有 出现故障, 而不发起重建与 P-GW之间的连接的操作。
可选的,若终端没有收到 P-GW的探测响应,可以认为终端与 P-GW之间 的连接出现故障,终端可以重建与 P-GW之间的连接以修复与 P-GW之间的连 接故障。
可选的, 在 P-GW向终端发送 P-GW的地址之后, P-GW可以启动对探测 包的流量监控, 以防止终端获取 P-GW的地址后, 发起恶意攻击, 确保 P-GW 的安全。 若探测包的流量满足预置条件, 则丟弃后续接收到的探测包, 或丟弃 指定终端后续发送的探测包, 其中, 该指定终端为发送探测包的流量达到预置 门限的终端。
示例性的, 上述预置条件可以包括: 1 )对 P-GW的所有探测包的流量进 行监控, 当所有探测包的流量达到预置门限时, 丟弃后续接收到的探测包; 或 者, 2 )分别对各个终端所发送的探测包进行监控, 当任一终端所发送的探测 包的流量达到预置门限时, 则丟弃该终端后续发送的探测包。
图 4所示的实施例提供的数据传输异常的处理方法,通过在数据传输异常 时,终端根据与 P-GW之间的连接状况来决定是否发起重建连接操作,可以避 免由于业务服务器断连或故障而引起的重建连接的无效操作,减少了对网关及 相关的网络设备的信令沖击, 降低运营商对设备的运营成本。
下面对用于执行本发明实施例提供的数据传输异常的处理方法的终端进 行举例说明, 其逻辑结构请参考图 5, 本发明实施例提供的终端包括:
地址获取单元 501 , 用于获取无线分组网关的地址;
连接处理单元 502, 用于当数据传输异常时, 若根据无线分组网关的地址 检测到终端与无线分组网关的连接正常, 保持该连接。
可选的,连接处理单元 502还用于, 若根据无线分组网关的地址检测到终 端与无线分组网关的连接异常, 重新建立该连接。
可选的, 地址获取单元 501包括:
第一发送模块 5011 ,用于发送激活分组数据协议上下文请求 Activate PDP Context Request消息至 SGSN;
第一接收模块 5012, 用于接收 SGSN发送的激活分组数据协议上下文接 受 Activate PDP Context Accept消息, 该激活分组数据协议上下文接受消息包 括无线分组网关的地址,该无线分组网关的地址是由该无线分组网关通过创建 分组数据协议上下文响应 Create PDP Context Response消息发送至 SGSN的。
可选的, 地址获取单元 501包括:
第二发送模块 5013 ,用于发送附着请求 Attach Request消息至移动管理实 体 MME;
第二接收模块 5014, 用于接收 MME发送的无线分组网关的地址, 该无 线分组网关的地址是由该无线分组网关通过创建会话响应 Create Session Response消息发送至 MME的。
本发明实施例中终端各个单元的操作过程如下:
地址获取单元 501获取无线分组网关的地址; 其中, 该无线分组网关可以 为 GGSN或 P-GW, 该无线分组网关可以具有网络接入控制、 路由选择和分 组的转发、 用户数据管理等功能。 本领域普通技术人员应知, 随着无线网络的 发展, 无线分组网关还可以为其他网元, 本发明实施例对此不作限定。
当数据传输异常时,若终端根据无线分组网关的地址获知终端与无线分组 其中,终端保持与无线分组网关之间的连接是指终端不重新建立与无线分 组网关之间的连接, 例如, 终端不向无线分组网关发起激活 PDP上下文请求, 或者终端不向无线分组网关发起建立分组数据网连接的流程。
示例性的,数据传输异常可以为: 终端发送上行数据后收不到业务服务器 的响应; 或者, 当终端向业务服务器发送上行数据之后, 在预置时间内收不到 业务服务器的响应; 或者, 当终端向业务服务器发送上行数据之后, 若在预置 时间内收不到业务服务器的响应,再次向该业务服务器发送上行数据, 若连续 重新发送上行数据的次数超过预置次数之后,还未收到业务服务器的响应, 则 可认为数据传输异常。
可选的, 在 2G/3G场景下, 地址获取单元 501获取无线分组网关的地址 的过程可以为: 地址获取单元 501 的第一发送模块 5011 向 SGSN发送 Activate PDP Context Request消息, 以建立与 GGSN之间的连接; SGSN接到 Activate PDP Context Request消息之后, 向 GGSN发送 Create PDP Context Request消息; GGSN接到 Create PDP Context Request消息之后, 向 SGSN发送 Create PDP Context Response 消息, 其中, GGSN向 SGSN发送的 Create PDP Context Response消息中包括 GGSN的地址。 示例性的, GGSN的地址可以是网关 Gi 接口内置锚点地址, GGIA可以携带在 Create PDP Context Response消息的协 议配置选项 (Protocol Configuration Option, PCO ) 字段中。 采用 GGIA可以 减轻 Gn接口的负载。 SGSN接收到 Create PDP Context Response消息之后, 地址获取单元 501 的第一接收模块 5012接收 SGSN返回的 Activate PDP Context Accept消息, 其中, SGSN向终端发送的 Activate PDP Context Accept 消息中包括 SGSN从 GGSN获取的 GGSN的地址。 示例性的, GGSN的地址 可以携带在 Activate PDP Context Accept消息的 PCO字段中。
可选的, 在 4G场景下, 地址获取单元 501获取无线分组网关的地址的过 程可以为: 地址获取单元 501 的第二发送模块 5013 向 eNodeB发送 Attach Request消息,发起附着流程。 eNodeB收到 Attach Request消息之后, 向 MME 发送 Attach Request消息; MME收到 Attach Request消息之后, 向 S-GW发送 Create Session Request消息; S-GW收到 Create Session Request消息之后 , 向 P-GW发送 Create Session Request消息; P-GW收到 Create Session Request消 息之后向 S-GW发送 Create Session Response 消息; 其中, Create Session Response消息中携带有 P-GW的地址, 具体的, P-GW的地址可以为网关 Gi 接口内置锚点地址(即 P-GW的 SGi接口的内置锚点地址 ) , P-GW的地址可 以携带在 Create Session Response 消息的 PCO 字段中。 S-GW 收到 Create Session Response消息之后,向 MME发送 Create Session Response消息; MME 收到 Create Session Response消息之后 ,向 eNodeB发送 Attach Response消息; 其中, Attach Response消息中携带有 Create Session Response消息中的 P-GW 的地址。 eNodeB收到 Attach Response消息之后, 地址获取单元 501的第二接 收模块 5014接收 eNodeB发送的 RRC Connection Reconfiguration消息;其中, RRC Connection Reconfiguration消息中携带有 Attach Response消息中的 P-GW 的地址。
由于业务服务器的故障, 或终端和无线分组网关(含无线分组网关)之间 的设备故障都可以导致数据传输异常,而重建连接的操作只能解决终端和无线 分组网关间的连接故障的问题, 因此, 为了减少无效的信令开销, 终端可根据 无线分组网关的地址检测终端与无线分组网关的连接是否异常,再决定是否发 起重建连接操作。若终端与无线分组网关的连接异常, 则可以确定此次数据传 输异常是由终端和无线分组网关的连接故障引起的,终端此时可发起重建连接 操作以解决终端与无线分组网关之间的连接故障;若终端与无线分组网关的连 接正常, 则可以确定业务连接故障是由业务服务器的故障引起的, 终端即使发 起重建连接操作也无法排除该故障,因此终端可以保持与无线分组网关之间的 连接, 不发起重建连接操作, 以避免不必要的信令的开销。
下面对用于执行本发明实施例提供的数据传输异常的处理方法的无线分 组网关进行举例说明, 其逻辑结构请参考图 6, 本发明实施例提供的无线分组 网关包括:
地址发送单元 601 , 用于发送无线分组网关的地址至终端;
探测接收单元 602, 用于接收终端根据无线分组网关的地址发起的探测; 探测响应单元 603 , 用于发送探测响应至终端, 以使终端保持与无线分组 网关的连接。
可选的, 该无线分组网关还包括:
流控单元 604, 用于对终端发起的探测进行流控。
可选的, 地址发送单元 601包括:
第一请求接收模块 6011 , 用于接收通用分组无线服务支持点 SGSN发送 的创建分组数据协议上下文请求 Create PDP Context Request消息;
第一响应发送模块 6012, 用于发送创建分组数据协议上下文响应 Create PDP Context Response消息至 SGSN, 该创建分组数据协议上下文响应包括无 线分组网关的地址, 以使 SGSN通过激活分组数据协议上下文接受 Activate PDP Context Accept消息发送该无线分组网关的地址至终端。
可选的, 地址发送单元 601包括:
第二请求接收模块 6013 , 用于接收移动管理实体 MME发送的创建会话 请求 Create Session Request消息;
第二响应发送模块 6014, 用于通过创建会话响应 Create Session Response 消息将无线分组网关的地址发送至 MME , 以使该 MME向终端发送该无线分 组网关的地址。
本发明实施例中无线分组网关各个单元的具体操作过程如下:
地址发送单元 601发送无线分组网关的地址至终端; 示例性的, 无线分组 网关可以为 GGSN或 PGW, 该无线分组网关可以具有网络接入控制、 路由选 择和分组的转发、 用户数据管理等功能。
当终端的数据传输发生异常时, 探测接收单元 602接收终端发送的探测 包, 该探测包用于检测无线分组网关与终端之间的连接是否正常。
探测响应单元 603发送探测响应至终端,以使终端保持与无线分组网关的 连接。
604可以启动对探测包的流量监控, 以防止终端获取无线分组无线分组网关的 地址后, 发起恶意攻击, 确保无线分组无线分组网关的安全。 若探测包的流量 满足预置条件, 则丟弃后续接收到的探测包, 或丟弃指定终端后续发送的探测 包, 其中, 该指定终端为发送探测包的流量达到预置门限的终端。
示例性的, 上述预置条件可以包括: 1 )对无线分组网关的所有探测包的 流量进行监控, 当所有探测包的流量达到预置门限时,丟弃后续接收到的探测 包; 或者, 2 )分别对各个终端所发送的探测包进行监控, 当任一终端所发送 的探测包的流量达到预置门限时, 则丟弃该终端后续发送的探测包。
可选的, 在 2G/3G场景下, 可以由地址发送单元 601的第一请求接收模 块 6011接收通用分组无线服务支持点 SGSN发送的创建分组数据协议上下文 请求 Create PDP Context Request消息; 再由第一响应发送模块 6012发送创建 分组数据协议上下文响应 Create PDP Context Response消息至该 SGSN, 该创 组数据协议上下文接受 Activate PDP Context Accept消息发送该无线分组网关 的地址至该终端。
可选的,在 4G场景下,可以由地址发送单元 601的第二请求接收模块 6013 接收移动管理实体 MME发送的创建会话请求 Create Session Request消息; 再 由第二响应发送模块 6014通过创建会话响应 Create Session Response消息将无 线分组网关的地址发送至 MME ,以使 MME向终端发送无线分组网关的地址。 在数据传输异常时,根据与无线分组网关之间的连接状况来决定是否发起重建 连接操作, 可以避免由于业务服务器断连或故障而引起的重建连接的无效操 作, 减少了对网关及相关的网络设备的信令沖击, 降低运营商对设备的运营成 本。
本发明一实施例还提供一种数据传输异常的处理系统,其逻辑结构请参考 图 7, 该系统包括: 无线分组网关 701和终端 702; 其中, 无线分组网关 701 可以是图 5所示的无线分组网关, 终端 702可以是图 6所示的终端。
数据传输异常的处理系统的处理流程可以参考前述图 1至图 4的实施例, 此处不再赘述。
本发明实施例通过在数据传输异常时,终端根据与无线分组网关之间的连 接状况来决定是否发起重建连接操作,可以避免由于业务服务器断连或故障而 引起的重建连接的无效操作, 减少了对网关及相关的网络设备的信令沖击, 降 低运营商对设备的运营成本。
在本申请所提供的几个实施例中,应该理解到, 所揭露的装置和方法可以 通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如, 所述单元的划分,仅仅为一种逻辑功能划分, 实际实现时可以有另外的划分方 式, 例如多个单元或组件可以结合或者可以集成到另一个系统, 或一些特征可 以忽略, 或不执行。 另一点, 所显示或讨论的相互之间的耦合或直接耦合或通 信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性, 机才戒或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为 单元显示的部件可以是或者也可以不是物理单元, 即可以位于一个地方, 或者 也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部 单元来实现本实施例方案的目的。
另外, 在本发明各个实施例中的各功能单元可以集成在一个处理单元中, 也可以是各个单元单独物理存在 ,也可以两个或两个以上单元集成在一个单元 中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的 形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售 或使用时, 可以存储在一个计算机可读取存储介质中。 基于这样的理解, 本发 明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全 部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储 介质中, 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所述方法的全部或部分步骤。 而前述 的存储介质包括: U盘、 移动硬盘、 只读存储器(ROM, Read-Only Memory ), 随机存取存储器(RAM, Random Access Memory ), 磁碟或者光盘等各种可以 存储程序代码的介质。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于 此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可轻易想到 变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明的保护范围应 所述以权利要求的保护范围为准。

Claims

权 利 要 求
1、 一种数据传输异常的处理方法, 其特征在于, 包括:
终端获取无线分组网关的地址;
当数据传输异常时,若所述终端根据所述无线分组网关的地址获知所述终 端与所述无线分组网关的连接正常, 所述终端保持所述连接。
2、 根据权利要求 1所述的方法, 其特征在于, 还包括:
当数据传输异常时,若所述终端根据所述无线分组网关的地址获知所述终 端与所述无线分组网关的连接异常, 所述终端重新建立所述连接。
3、 根据权利要求 2任一所述的方法, 其特征在于, 所述终端根据所述无 线分组网关的地址获知所述终端与所述无线分组网关的连接异常, 包括: 所述终端在预置时间内未接收到所述无线分组网关的探测响应。
4、 根据权利要求 1~3任一所述的方法, 其特征在于, 所述终端获取无线 分组网关的地址, 包括:
所述终端发送激活分组数据协议上下文请求 Activate PDP Context Request 消息至通用分组无线服务支持点 SGSN;
所述终端接收所述 SGSN发送的激活分组数据协议上下文接受 Activate
PDP Context Accept消息, 所述激活分组数据协议上下文接受消息包括所述无 线分组网关的地址,所述无线分组网关的地址是由所述无线分组网关通过创建 分组数据协议上下文响应 Create PDP Context Response消息发送至所述 SGSN 的。
5、 根据权利要求 1~3任一所述的方法, 其特征在于, 所述终端获取无线 分组网关的地址, 包括:
所述终端发送附着请求 Attach Request消息至移动管理实体 MME;
所述终端接收所述 MME发送的无线分组网关的地址,所述无线分组网关 的地址是由所述无线分组网关通过创建会话响应 Create Session Response消息 发送至所述 MME的。
6、 根据权利要求 4或 5所述的方法, 其特征在于, 所述无线分组网关的 地址携带在协议配置选项 Protocol Configuration Options信元中。
7、 根据权利要求 1~6任意一项所述的方法, 其特征在于, 所述终端根据 所述无线分组网关的地址获知所述终端与所述无线分组网关的连接正常包括: 所述终端在预置时间内接收到所述无线分组网关的探测响应。
8、 根据权利要求 1~7任意一项所述的方法, 其特征在于, 所述终端根据 所述无线分组网关的地址获知所述终端与所述无线分组网关的连接正常之前 , 还包括:
所述终端发送上行数据至业务服务器;
若所述终端未收到所述业务服务器的响应, 所述终端确定数据传输异常。
9、根据权利要求 1~8任意一项所述的方法, 其特征在于, 所述无线分组 网关的地址为网关 Gi接口内置锚点地址。
10、 一种数据传输异常的处理方法, 其特征在于, 包括:
无线分组网关发送所述无线分组网关的地址至终端;
所述无线分组网关接收所述终端根据所述无线分组网关的地址发起的探 测;
所述无线分组网关发送探测响应至所述终端,以使所述终端保持与所述无 线分组网关的连接。
11、 根据权利要求 10所述的方法, 其特征在于, 还包括:
所述无线分组网关对所述终端发起的探测进行流控。
12、 根据权利要求 10或 11所述的方法, 其特征在于, 所述无线分组网关 发送所述无线分组网关的地址至终端, 包括:
所述无线分组网关接收通用分组无线服务支持点 SGSN发送的创建分组 数据协议上下文请求 Create PDP Context Request消息;
所述无线分组网关发送创建分组数据协议上下文响应 Create PDP Context Response消息至所述 SGSN,所述创建分组数据协议上下文响应包括所述无线 分组网关的地址, 以使所述 SGSN通过激活分组数据协议上下文接受 Activate PDP Context Accept消息发送所述无线分组网关的地址至所述终端。
13、 根据权利要求 10或 11所述的方法, 其特征在于, 所述无线分组网关 发送所述无线分组网关的地址至终端, 包括: 所述无线分组网关接收移动管理实体 MME发送的创建会话请求 Create Session Request消息;
所述无线分组网关通过创建会话响应 Create Session Response消息将所述 无线分组网关的地址发送至所述 MME, 以使所述 MME向所述终端发送所述 无线分组网关的地址。
14、 根据权利要求 12或 13所述的方法, 其特征在于, 所述无线分组网关 的地址携带在协议配置选项 Protocol Configuration Options信元中。
15、根据权利要求 10~14任意一项所述的方法, 其特征在于, 所述无线分 组网关的地址为网关 Gi接口内置锚点地址。
16、 一种终端, 其特征在于, 包括:
地址获取单元, 用于获取无线分组网关的地址;
连接处理单元, 用于当数据传输异常时, 若根据所述无线分组网关的地址 检测到所述终端与所述无线分组网关的连接正常, 保持所述连接。
17、 根据权利要求 16所述的终端, 其特征在于, 所述连接处理单元还用 于若根据所述无线分组网关的地址检测到所述终端与所述无线分组网关的连 接异常, 重新建立所述连接。
18、 根据权利要求 16或 17所述的终端, 其特征在于, 所述地址获取单元 包括:
第一发送模块, 用于发送激活分组数据协议上下文请求 Activate PDP Context Request消息至 SGSN;
第一接收模块,用于接收所述 SGSN发送的激活分组数据协议上下文接受 Activate PDP Context Accept消息, 所述激活分组数据协议上下文接受消息包 括所述无线分组网关的地址,所述无线分组网关的地址是由所述无线分组网关 通过创建分组数据协议上下文响应 Create PDP Context Response消息发送至所 述 SGSN的。
19、 根据权利要求 16或 17所述的终端, 其特征在于, 所述地址获取单元 包括:
第二发送模块, 用于发送附着请求 Attach Request 消息至移动管理实体 MME; 第二接收模块, 用于接收所述 MME发送的无线分组网关的地址, 所述无 线分组网关的地址是由所述无线分组网关通过创建会话响应 Create Session Response消息发送至所述 MME的。
20、 一种无线分组网关, 其特征在于, 包括:
地址发送单元, 用于发送无线分组网关的地址至终端;
探测接收单元,用于接收所述终端根据所述无线分组网关的地址发起的探 测;
探测响应单元, 用于发送探测响应至所述终端, 以使所述终端保持与所述 无线分组网关的连接。
21、 根据权利要求 20所述的无线分组网关, 其特征在于, 所述无线分组 网关还包括:
流控单元, 用于对所述终端发起的探测进行流控。
22、 根据权利要求 20或 21所述的无线分组网关, 其特征在于, 所述地址 发送单元包括:
第一请求接收模块,用于接收通用分组无线服务支持点 SGSN发送的创建 分组数据协议上下文请求 Create PDP Context Request消息;
第一响应发送模块, 用于发送创建分组数据协议上下文响应 Create PDP Context Response消息至所述 SGSN, 所述创建分组数据协议上下文响应包括 所述无线分组网关的地址,以使所述 SGSN通过激活分组数据协议上下文接受 Activate PDP Context Accept消息发送所述无线分组网关的地址至所述终端。
23、 根据权利要求 20或 21所述的无线分组网关, 其特征在于, 所述地址 发送单元包括:
第二请求接收模块, 用于接收移动管理实体 MME发送的创建会话请求 Create Session Request消息;
第二响应发送模块, 用于通过创建会话响应 Create Session Response消息 将所述无线分组网关的地址发送至所述 MME, 以使所述 MME向所述终端发 送所述无线分组网关的地址。
24、 一种数据传输异常的处理系统, 其特征在于, 包括如权利要求 16~19 任一所述的终端和如权利要求 20~23任一所述的无线分组网关。
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