CN108882278B

CN108882278B - Data link monitoring method, device, apparatus and computer readable storage medium

Info

Publication number: CN108882278B
Application number: CN201810707899.9A
Authority: CN
Inventors: 曾宪平
Original assignee: Comba Network Systems Co Ltd
Current assignee: Comba Network Systems Co Ltd
Priority date: 2018-07-02
Filing date: 2018-07-02
Publication date: 2021-11-23
Anticipated expiration: 2038-07-02
Also published as: CN108882278A

Abstract

The invention discloses a data link monitoring method, equipment, a device and a computer readable storage medium, wherein the method comprises the following steps: after the context of the terminal is successfully established, receiving a handshake message sent by the terminal; sending the handshake message to a serving gateway (S-GW) in a preset mode; and when determining that the data link between the base station and the S-GW is in an abnormal state based on the S-GW, controlling the cell corresponding to the base station to be in a blocking state so as to enable the terminal to be connected to other normally operating base stations again. The invention controls the cell of the base station corresponding to the abnormal data link to be in the blocking state, so that the terminal connected with the base station is automatically redirected to the base station which can be connected with the terminal and can normally operate, and the terminal user can normally use data service through other base stations when the data link between the terminal and the S-GW is abnormal.

Description

Data link monitoring method, device, apparatus and computer readable storage medium

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, a device, and a computer-readable storage medium for monitoring a data link.

Background

The Long Term Evolution (LTE) is a Long Term Evolution technology of the next generation mobile communication standard, and the importance of LTE in the communication technology is increasingly prominent. In recent years, with the popularization of mobile internet and smart phones, the demand for mobile data traffic has rapidly increased, wherein indoor mobile data services account for a large proportion.

In a mobile network communication system, a Data Packet is sent from a server to a base station through a S-GW (Serving gateway) through a network, and then sequentially passes through a General Packet Radio Service tunneling Protocol (GTP) layer, a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, a Media Access Control (MAC) layer, and a Physical (PHY) layer in the base station, and finally is sent to a UE (User Equipment) through an air interface for reception. If the UE can normally receive the data packet sent by the server, the data service is normal, and if the UE cannot receive the data packet sent by the server, the data link from the server to the UE is abnormal.

Compared with a macro base station networking system, the LTE small base station networking system has more small base station gateway equipment, wherein the small base station gateway plays a role in encrypting and forwarding data. In the current small base station commercial system, if an S-GW manufacturer changes and adds an address of an S-GW server, the S-GW manufacturer does not timely inform a small base station gateway manufacturer of adding and changing a corresponding address; or when part of the S-GW servers are abnormal, the situation that the terminal user cannot use the data service occurs when the terminal is connected to the S-GW.

In summary, when the terminal and the mme (mobility Management entity) perform signaling interaction normally, if data interaction between the terminal and the S-GW is abnormal, that is, a data link between the terminal and the S-GW is abnormal, a situation that the base station normally sends a signal but a terminal user cannot use a data service occurs.

Disclosure of Invention

The invention mainly aims to provide a data link monitoring method, equipment, a device and a computer readable storage medium, aiming at solving the technical problem of how to enable a terminal user to normally use data service when a data link between a terminal and an S-GW is abnormal.

In order to achieve the above object, the present invention provides a data link monitoring method, where the data link monitoring method is applied to a base station, and the data link monitoring method includes the steps of:

after the context of the terminal is successfully established, receiving a handshake message sent by the terminal;

sending the handshake message to a serving gateway (S-GW) in a preset mode;

and when determining that the data link between the base station and the S-GW is in an abnormal state based on the S-GW, controlling the cell corresponding to the base station to be in a blocking state so as to enable the terminal to be connected to other normally operating base stations again.

Preferably, before the step of controlling the cell corresponding to the base station to be in a blocking state when the data link between the base station and the S-GW is determined to be in an abnormal state based on the S-GW, so that the terminal is reconnected to other normally operating base stations, the method further includes:

extracting a protocol identification carried by the handshake message, and determining the protocol type for transmitting the handshake message according to the protocol identification;

if the protocol for transmitting the handshake message is determined to be a Transmission Control Protocol (TCP) according to the protocol identifier, detecting whether response messages sent by the S-GW carry abnormal identifiers, wherein the response messages are returned to the base station after the S-GW receives the handshake message;

when the response message is detected to carry the abnormal identifier, determining that a data link between the base station and the S-GW is in an abnormal state;

and when detecting that at least one response message carries a successful identifier, determining that a data link between the base station and the S-GW is in a normal state.

Preferably, when it is detected that at least one of the response messages carries a successful identifier, the step of determining that the data link between the base station and the S-GW is in a normal state includes:

when detecting that at least one response message carries a success identifier, judging whether response data returned by the S-GW is received within a first preset time length;

and if response data returned by the S-GW is received within the first preset time, determining that a data link between the base station and the S-GW is in a normal state.

Preferably, after the step of determining whether response data returned by the S-GW is received within a first preset time period when it is detected that at least one of the response messages carries a success identifier, the method further includes:

and if the response data returned by the S-GW is not received within the first preset time, determining that a data link between the base station and the S-GW is in an abnormal state.

Preferably, after the step of extracting the protocol identifier carried by the handshake message and determining the protocol type for transmitting the handshake message according to the protocol identifier, the method further includes:

if the protocol for transmitting the handshake message is determined to be a User Datagram Protocol (UDP) according to the protocol identifier, detecting whether at least one response message returned by the S-GW is received within a second preset time length;

when at least one response message returned by the S-GW is received within the second preset time, determining that a data link between the base station and the S-GW is in a normal state;

and when any response message returned by the S-GW is not received within the second preset time, determining that the data link between the base station and the S-GW is in an abnormal state.

Preferably, after the step of controlling the cell corresponding to the base station to be in a blocking state when the data link between the base station and the S-GW is determined to be in an abnormal state based on the S-GW, so that the terminal is reconnected to other normally operating base stations, the method further includes:

and generating alarm information and sending the alarm information to a network management system so that the network management system prompts the S-GW of which the corresponding maintenance personnel have abnormity according to the alarm information.

acquiring the address of the S-GW in an abnormal state;

and sending the address of the S-GW to a network management system, so that the network management system outputs the address of the S-GW after receiving the address of the S-GW, and corresponding maintenance personnel can position the S-GW in an abnormal state according to the address of the S-GW.

Preferably, after the context of the terminal is successfully established, before the step of receiving the handshake message sent by the terminal, the method further includes:

after the RRC connection of the radio resource control layer of the base station is successfully established, sending an initial terminal message to a control plane network element MME, so that the MME sends a context setting request message to the base station after receiving the initial terminal message;

after receiving the context setting request message, the base station extracts an S-GW address carried in the context request message and performs resource configuration;

and after the resource configuration is completed, sending a context setting response message to the MME so as to successfully establish the context of the terminal.

Furthermore, to achieve the above object, the present invention also provides a data link monitoring device, which includes a memory, a processor and a data link monitoring program stored on the memory and operable on the processor, wherein the data link monitoring program, when executed by the processor, implements the steps of the data link monitoring method as described above.

In addition, to achieve the above object, the present invention further provides a data link monitoring device, including:

the detection module is used for receiving handshake messages sent by the terminal after the context of the terminal is successfully established;

the monitoring module is used for sending the handshake message to a service gateway (S-GW) in a preset mode;

and the control module is used for controlling the cell corresponding to the base station to be in a blocking state when the S-GW determines that the data link between the base station and the S-GW is in an abnormal state, so that the terminal is connected to other normally-operated base stations again.

Further, to achieve the above object, the present invention also provides a computer readable storage medium having stored thereon a data link monitoring program, which when executed by a processor, implements the steps of the data link monitoring method as described above.

The invention forwards the handshake message to the S-GW after the base station receives the handshake message sent by the terminal, and controls the cell corresponding to the base station to be in the blocking state when the S-GW determines that the data link between the base station and the S-GW is in the abnormal state, so that the terminal connected with the base station automatically redirects to the base station which can be connected and can normally operate, and the terminal user can normally use the data service through other base stations when the data link between the terminal and the S-GW is abnormal.

Drawings

Fig. 1 is a schematic structural diagram of an LTE network according to the present invention;

FIG. 2 is a schematic diagram of a hardware operating environment according to an embodiment of the present invention;

FIG. 3 is a flow chart illustrating a first embodiment of a data link monitoring method according to the present invention;

FIG. 4 is a flow chart of a third embodiment of a data link monitoring method of the present invention;

FIG. 5 is a flow chart illustrating a fourth embodiment of a data link monitoring method according to the present invention;

FIG. 6 is a flow chart illustrating a fifth embodiment of a data link monitoring method according to the present invention;

fig. 7 is an interaction diagram for establishing a terminal context in the embodiment of the present invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, in an LTE network, a traditional CS (Circuit Switched) domain network element has disappeared, and both voice and data services are carried by using a PS (Packet Switched) domain core network; the PS domain Core network in the LTE network is also called EPC (Evolved Packet Core, 4G Core network), and the main network elements include a base station, MME, S-GW, and a base station gateway.

The base station is responsible for radio resource management, and integrates functions of a part of base stations similar to a 2G (second generation mobile communication technology)/TD (Time Division-Synchronous Code Division Multiple Access) base station and a base station controller.

MME: the MME is a control plane network element under 4G access and is used for taking charge of a mobility management function.

S-GW: the service gateway is accessed to the user plane, and is equivalent to the user plane function of the traditional Gn SGSN (Serving GPRS Support Node).

A base station gateway: data and signaling security encrypts the tunnel and forwarding functions.

The invention provides a data link monitoring device, and referring to fig. 2, fig. 2 is a schematic structural diagram of a hardware operating environment according to an embodiment of the invention.

It should be noted that fig. 2 is a schematic structural diagram of a hardware operating environment of the data link monitoring device. The data link monitoring equipment of the embodiment of the invention can be terminal equipment such as a PC, a portable computer and the like.

As shown in fig. 2, the data link monitoring apparatus may include: a processor 1001, such as a CPU, a memory 1005, a user interface 1003, a network interface 1004, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.

Optionally, the data link monitoring device may further include RF (Radio Frequency) circuitry, sensors, WiFi modules, and the like.

Those skilled in the art will appreciate that the data link monitoring device configuration shown in fig. 2 does not constitute a limitation of the data link monitoring device and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.

As shown in fig. 2, a memory 1005, which is one type of computer storage medium, may include an operating system, a network communication module, a user interface module, and a data link monitoring program therein. The operating system is a program for managing and controlling hardware and software resources of the data link monitoring device, and supports the operation of the data link monitoring program and other software or programs.

In the data link monitoring apparatus shown in fig. 2, the user interface 1003 mainly receives various messages, such as a handshake message and a context setting request message; the network interface 1004 is mainly used for interacting with the terminal, the MME and the S-GW to communicate; the processor 1001 may be configured to invoke a data link monitoring program stored in the memory 1005 and perform the following operations:

sending the handshake message to a serving gateway (S-GW) in a preset mode;

Further, before the step of controlling the cell corresponding to the base station to be in the blocking state when determining that the data link between the base station and the S-GW is in the abnormal state based on the S-GW, so as to reconnect the terminal to other normally operating base stations, the processor 1001 may be further configured to call a data link monitoring program stored in the memory 1005, and perform the following steps:

Further, when it is detected that at least one of the response messages carries a successful identifier, the step of determining that the data link between the base station and the S-GW is in a normal state includes:

Further, after the step of determining whether response data returned by the S-GW is received within a first preset time period when it is detected that at least one response message carries a success identifier, the processor 1001 may be further configured to invoke a data link monitoring program stored in the memory 1005, and execute the following steps:

Further, after the step of extracting the protocol identifier carried in the handshake message and determining the protocol type for transmitting the handshake message according to the protocol identifier, the processor 1001 may be further configured to invoke a data link monitoring program stored in the memory 1005 and execute the following steps:

Further, after the step of controlling the cell corresponding to the base station to be in the blocking state when determining that the data link between the base station and the S-GW is in the abnormal state based on the S-GW, so as to reconnect the terminal to other normally operating base stations, the processor 1001 may be further configured to call a data link monitoring program stored in the memory 1005, and perform the following steps:

acquiring the address of the S-GW in an abnormal state;

Further, before the step of receiving the handshake message sent by the terminal after the context of the terminal is successfully established, the processor 1001 may be further configured to invoke a data link monitoring program stored in the memory 1005, and execute the following steps:

after receiving the context setting request message, extracting an S-GW address carried in the context request message, and performing resource configuration;

Based on the above structure, various embodiments of a data link monitoring method are provided.

Referring to fig. 3, fig. 3 is a flowchart illustrating a data link monitoring method according to a first embodiment of the present invention.

In the present embodiment, an embodiment of a data link monitoring method is provided, it should be noted that although a logical order is shown in the flow chart, in some cases, the steps shown or described may be performed in an order different from that here.

The data link monitoring method comprises the following steps:

step S10, after the context of the terminal is successfully established, receiving a handshake message sent by the terminal.

After the context of the terminal (UE) is successfully established, the base station receives a handshake message sent by the terminal through a preset mode. The base station is a small base station, that is, one base station corresponds to one cell. The default mode includes, but is not limited to, TCP (Transmission Control Protocol) and UDP (User Datagram Protocol). The handshake message is triggered when the terminal establishes a connection with the S-GW.

And step S20, sending the handshake message to a serving gateway S-GW through a preset mode.

And after receiving the handshake message, the base station sends the received handshake message to the S-GW through a corresponding preset mode, and monitors whether a data link corresponding to the S-GW is in an abnormal state through the handshake message, namely monitors whether the data link between the terminal and the S-GW is in the abnormal state. It can be understood that, when the terminal sends the handshake message to the base station through TCP, the base station also sends the handshake message to the S-GW through TCP; when the terminal sends the handshake message to the base station through UDP, the base station also sends the handshake message to the S-GW through UDP. As shown in fig. 1, during the data interaction between the base station and the S-GW, the transmitted data may be forwarded through the corresponding base station gateway. In this embodiment, the reasons causing the data link between the terminal and the S-GW to be in an abnormal state include, but are not limited to, not setting the routing information corresponding to the S-GW and the S-GW server being abnormal.

Further, the data link monitoring method further comprises:

step a, extracting a protocol identification carried by the handshake message, and determining the protocol type for transmitting the handshake message according to the protocol identification.

And b, if the protocol for transmitting the handshake message is determined to be a Transmission Control Protocol (TCP) according to the protocol identifier, detecting whether response messages sent by the S-GW carry abnormal identifiers, wherein the response messages are returned to the base station after the S-GW receives the handshake message.

And d, when detecting that the response message carries the abnormal identifier, determining that a data link between the base station and the S-GW is in an abnormal state.

Step e, when detecting that at least one response message carries a success identification, determining that the data link between the base station and the S-GW is in a normal state.

Further, the specific process of the base station monitoring whether the data link corresponding to the S-GW is in an abnormal state is as follows: and after the base station receives the handshake message, the base station extracts the protocol identification carried by the handshake message and determines the protocol type for transmitting the handshake message according to the protocol identification. It should be noted that, the handshake message carries a protocol identifier of a protocol used for transmitting the handshake message, and the protocol corresponding to the transmission handshake message can be determined through the protocol identifier. In this embodiment, the specific expression form of the protocol identifier is not limited, for example, "0" may be used as the protocol identifier corresponding to TCP, and "1" may be used as the protocol identifier corresponding to DUP; or the "a" is used as the protocol identifier corresponding to the TCP, and the "b" is used as the protocol identifier corresponding to the DUP.

And if the base station determines that the protocol for transmitting the handshake messages is TCP according to the protocol identifier, the base station sends the handshake messages of the first preset number to the S-GW through the TCP. And when the S-GW receives the handshake message sent by the base station, generating a response message corresponding to the handshake message, and sending the response message to the base station. The specific value of the first preset number may be set according to specific needs, and the value of the first preset number is not specifically limited in this embodiment.

And after receiving the response message sent by the S-GW, the base station detects whether the received response message carries the abnormal identifier. If the base station detects that the received response messages carry the abnormal identification, the base station determines that a data link between the base station and the S-GW is in an abnormal state; and if the base station detects that at least one response message carrying the successful identifier exists in the received response messages, the base station determines that the data link between the base station and the S-GW is in a normal state. The abnormal identifier includes, but is not limited to, RST and FIN, the RST indicates connection reset between the base station and the S-GW, and the FIN indicates connection close between the base station and the S-GW. The successful identification is ACK, indicating a response, i.e. the S-GW responds to the corresponding handshake message.

Further, the data link monitoring method further comprises:

and f, if the protocol for transmitting the handshake message is determined to be a User Datagram Protocol (UDP) according to the protocol identifier, detecting whether at least one response message returned by the S-GW is received within a second preset time length.

Step g, when at least one response message returned by the S-GW is received within the second preset time, determining that the data link between the base station and the S-GW is in a normal state.

And h, when any response message returned by the S-GW is not received within the second preset time, determining that the data link between the base station and the S-GW is in an abnormal state.

Further, when the base station determines that the protocol for transmitting the handshake message is UDP according to the protocol identifier, the base station detects whether at least one response message returned by the S-GW is received within a second preset time period, that is, whether downlink data is received within the second preset time period. The second preset number can be set according to specific needs, and the second preset number can be equal to the first preset number or not. The second preset time period can also be set according to specific needs, for example, the second preset time period can be set to 30 seconds, 60 seconds, 80 seconds, or the like. It can be understood that, if the S-GW receives the handshake message sent by the base station through the UDP, the S-GW will normally return a response message corresponding to the received handshake message to the base station through the UDP.

If the base station receives a response message returned by at least one S-GW within a second preset time, the base station determines that the current UDP connection is abnormal, and determines that a data link between the base station and the S-GW is in a normal state; and if the base station does not receive any response message returned by the S-GW within the second preset time length, the base station determines that the data link between the base station and the S-GW is in an abnormal state.

And step S30, when the data link between the base station and the S-GW is determined to be in an abnormal state based on the S-GW, controlling the cell corresponding to the base station to be in a blocking state so as to enable the terminal to be connected to other base stations which normally operate again.

If the base station determines that the data link between the base station and the S-GW is in an abnormal state based on the S-GW, the base station automatically triggers a control instruction to control the corresponding cell to be in a blocking state according to the control instruction, so that the terminal is reconnected to other base stations which normally operate. It should be noted that, when the cell corresponding to the base station is in the block state, the air interface corresponding to the base station is in the close state, and the data link corresponding to the signaling plane of the base station is cut off, that is, the data link between the base station and the MME is cut off, at this time, the terminal cannot be connected to the base station, and the terminal under the base station can automatically redirect to the base station which can be connected and can normally operate. It can be understood that, when the cell corresponding to the base station is in the blocked state, other terminals may not access the cell of the base station any more.

Further, after the S-GW receives the handshake message, if no response message is sent to the base station within a preset time period, the S-GW determines that the S-GW is in an abnormal state, and at this time, the S-GW may generate a prompt message indicating that the S-GW is in the abnormal state, and send the prompt message to the network management system, so that the network management system prompts that the corresponding S-GW is in the abnormal state according to the prompt message, or sends the prompt message to the cloud server, so that the cloud server prompts that the S-GW is in the abnormal state according to the prompt message. When the base station determines that the S-GW corresponding to the base station is in an abnormal state through the network management system or the cloud server, that is, the data link between the base station and the S-GW is in the abnormal state, at this time, the base station controls the cell corresponding to the base station to be in a blocking state, so that the terminal is connected to other base stations which normally operate again.

In the embodiment, after the base station receives the handshake message sent by the terminal, the handshake message is forwarded to the S-GW, and when it is determined that the data link between the base station and the S-GW is in an abnormal state based on the S-GW, the cell corresponding to the base station is controlled to be in a blocked state, so that the terminal connected to the base station is automatically redirected to the base station which can be connected to the terminal and can normally operate, and when the data link between the terminal and the S-GW is abnormal, a terminal user can normally use a data service through other base stations.

Further, a second embodiment of the data link monitoring method of the present invention is provided.

The second embodiment of the data link monitoring method differs from the first embodiment of the data link monitoring method in that step e comprises:

step e1, when it is detected that at least one response message carries a success identifier, determining whether response data returned by the S-GW is received within a first preset time duration.

If the base station detects that at least one response message carrying a successful identifier exists in the received response messages, the base station determines whether response data returned by the S-GW is received within a first preset time length, that is, whether downlink data of the S-GW is received within the first preset time length. It should be noted that, when the base station detects that at least one response message carries a success identifier, it indicates that the three-way handshake between the base station and the S-GW is successful. And the response data is obtained by the S-GW according to the received data after the base station successfully handshakes the S-GW three times and the base station forwards the data sent by the terminal to the S-GW. The first preset time period can be set according to specific needs, for example, the first preset time period can be set to 45 seconds, 60 seconds or 85 seconds. The first preset duration may be equal to the second preset duration, or may be unequal to the second preset duration.

Step e2, if the response data returned by the S-GW is received within the first preset time period, determining that the data link between the base station and the S-GW is in a normal state.

Step i, if no response data returned by the S-GW is received within the first preset time, determining that a data link between the base station and the S-GW is in an abnormal state.

If the base station receives response data returned by the S-GW in a first preset time, the base station determines that a data link between the base station and the S-GW is in a normal state; and if the base station does not receive response data returned by the S-GW within the first preset time, the base station determines that a data link between the base station and the S-GW is in an abnormal state.

In this embodiment, after detecting that at least one response message carrying a successful identifier exists in the response message received by the base station, whether the data link between the base station and the S-GW is in an abnormal state is further determined according to whether response data returned by the S-GW is received within a first preset time period, so that accuracy of monitoring the data link between the base station and the S-GW for an abnormality is improved.

Further, a third embodiment of the data link monitoring method of the present invention is provided.

The third embodiment of the data link monitoring method differs from the first or second embodiment of the data link monitoring method in that, referring to fig. 4, the data link monitoring method further includes:

step S40, generating alarm information and sending the alarm information to a network management system, so that the network management system can prompt the S-GW with abnormality for corresponding maintenance personnel according to the alarm information.

And when the base station determines that the data link between the base station and the S-GW is in an abnormal state, the base station generates alarm information and sends the alarm information to the network management system. When the network management system receives the alarm information, the network management system outputs the alarm information to prompt the corresponding S-GW with abnormality for the maintenance personnel according to the alarm information. Further, the network management system sends the alarm information to the dispatching system, and the dispatching system outputs the alarm information so as to prompt the corresponding S-GW with abnormality for the maintenance personnel according to the alarm information. The alarm information can be output in the form of voice or text, for example, a prompt tone indicating that the abnormal S-GW exists can be output to prompt corresponding maintenance personnel.

In the embodiment, when it is monitored that the data link between the base station and the S-GW is abnormal, the corresponding alarm information is output to prompt the maintenance personnel that the abnormal S-GW exists, so that the maintenance personnel can maintain the abnormal S-GW as soon as possible.

Further, a fourth embodiment of the data link monitoring method of the present invention is provided.

The fourth embodiment of the data link monitoring method differs from the first, second or third embodiment of the data link monitoring method in that, with reference to fig. 5, the data link monitoring further comprises:

step S50, acquiring the address of the S-GW in an abnormal state.

Step S60, sending the address of the S-GW to a network management system, so that the network management system outputs the address of the S-GW after receiving the address of the S-GW, and corresponding maintenance personnel can position the S-GW in an abnormal state according to the address of the S-GW.

And when the base station determines that the data link between the base station and the S-GW is in an abnormal state, the base station acquires the address of the S-GW in the abnormal state and sends the address of the S-GW to the network management system. And after receiving the address of the S-GW in the abnormal state, the network management system outputs the address of the S-GW so as to allow corresponding maintenance personnel to quickly position the S-GW in the abnormal state according to the address of the S-GW. If the maintainer confirms that the reason causing the data link abnormity is that the S-GW is not configured with corresponding routing information, the maintainer can require a manufacturer corresponding to the S-GW to add the routing information; if the reason causing the data link abnormity is determined to be the abnormity of the S-GW server, the maintenance personnel can detect the operation condition of the S-GW server at the moment.

Further, after the network management system receives the address of the S-GW in the abnormal state, the address of the S-GW is sent to the dispatching system, and the dispatching system outputs the address of the S-GW to corresponding maintenance personnel. At this time, the maintenance personnel can locate the S-GW in an abnormal state according to the address of the S-GW output by the dispatching system.

Further, the base station can send the address of the S-GW in the abnormal state and the alarm information to the network management system, and the network management system can also send the address of the S-GW and the alarm information to the dispatching system.

In the embodiment, after the data link between the base station and the S-GW is determined to be in the abnormal state, the S-GW address in the abnormal state is sent to the network management system, and the corresponding maintainer can quickly and accurately position the S-GW in the abnormal state according to the S-GW address, so that the network operation and maintenance efficiency is improved.

Further, a fifth embodiment of the data link monitoring method of the present invention is provided.

The fourth embodiment of the data link monitoring method differs from the first, second, third or fourth embodiment of the data link monitoring method in that, referring to fig. 6, the data link monitoring further includes:

step S70, after the RRC connection of the radio resource control layer of the base station is successfully established, sending an initial terminal message to a control plane network element MME, so that the MME sends a context setup request message to the base station after receiving the initial terminal message.

After RRC (Radio Resource Control) connection of the base station is successfully established, that is, after SRB (signaling Radio Bearer) 1 Bearer information and Radio Resource configuration information are successfully established, the base station sends an Initial terminal Message (Initial UE Message) to the MME. After the MME receives the Initial terminal message, the MME sends a Context Setup Request (Initial Context Setup Request) message to the base station to Request to establish a default bearer. It should be noted that, in the context setup request message sent by the MME to the base station, the address of the S-GW is carried, and the address of the S-GW is pre-stored in the MME. The S-GW address carried by the context setup request message is randomly allocated by the MME. As can be seen from fig. 7, in the process of data interaction between the base station and the MME, the transmitted data needs to be forwarded through the base station gateway between the base station and the MME.

Step S80, after receiving the context setup request message, the base station extracts the S-GW address carried in the context request message, and performs resource configuration.

Step S90, after completing the resource configuration, sending a context setup response message to the MME, so as to successfully establish the context of the terminal.

And after receiving the context setting request message sent by the MME, the base station extracts the S-GW address carried in the context setting request message, stores the S-GW address and performs resource configuration according to the signaling flow of the air interface. It will be appreciated that the extracted S-GW address is used to determine the S-GW to which the data link is to be established.

Specifically, referring to fig. 7, after receiving the context setting request message, if the context setting request message does not include the UE Capability information, the base station sends a Capability query (UE Capability query) message to the terminal to query the terminal Capability; after receiving the Capability query message, the terminal sends terminal Capability Information (UE Capability Information) to the base station so as to report the Capability Information to the base station; after receiving the Capability Information of the terminal, the base station sends a UE Capability Information Indication message to the MME so that the MME can update the Capability Information of the terminal; the base station sends a Security Mode Command message to the terminal according to the Security information supported by the terminal carried in the context setting request message, and activates the Security Mode; when the terminal activates the Security Mode, the terminal sends a Security Mode Complete message to the base station, which indicates that the Security Mode activation is completed; after receiving the security mode complete message, the base station sends an RRC Connection Reconfiguration message to the terminal according to the erba (Evolved Radio Access Bearer) setup information in the context setup request message, to perform terminal Resource Reconfiguration, including Reconfiguration of SRB1 and Radio Resource configuration, and setup of SRB2, DRB (Data Resource Bearer) (including default Bearer), and so on. After the terminal completes the resource Reconfiguration, the terminal sends an RRC Connection Reconfiguration Complete (RRC Connection Reconfiguration Complete) message to the base station to prompt the base station to Complete the resource configuration; when the base station receives the RRC connection reset complete message, the base station sends a Context Setup Response (Initial Context Setup Response) message to the MME, indicating that the terminal Context Setup is complete, i.e., the terminal Context has been successfully Setup.

In this embodiment, signaling interaction between the terminal and the MME can be performed normally by establishing a terminal context.

In addition, an embodiment of the present invention further provides a data link monitoring device, where the data link monitoring device includes:

Further, the data link monitoring device further comprises:

a first extraction module, configured to extract a protocol identifier carried in the handshake message;

a determining module, configured to determine a protocol type for transmitting the handshake message according to the protocol identifier;

the detection module is further configured to detect whether response messages sent by the S-GW carry abnormal identifiers if it is determined, according to the protocol identifier, that a protocol for transmitting the handshake message is a transmission control protocol TCP, where the response messages are returned to the base station after the S-GW receives the handshake message;

the determining module is further configured to determine that a data link between the base station and the S-GW is in an abnormal state when it is detected that the response message carries the abnormal identifier; and when detecting that at least one response message carries a successful identifier, determining that a data link between the base station and the S-GW is in a normal state.

Further, the determining module includes:

a determining unit, configured to determine, when it is detected that at least one response message carries a success identifier, whether response data returned by the S-GW is received within a first preset time period;

a determining unit, configured to determine that a data link between the base station and the S-GW is in a normal state if response data returned by the S-GW is received within the first preset time period.

Further, the determining module is further configured to determine that a data link between the base station and the S-GW is in an abnormal state if response data returned by the S-GW is not received within the first preset time period.

The detection module is further configured to detect whether at least one response message returned by the S-GW is received within a second preset time period if it is determined, according to the protocol identifier, that the protocol transmitting the handshake message is a user datagram protocol UDP;

the determining module is further configured to determine that a data link between the base station and the S-GW is in a normal state when at least one response message returned by the S-GW is received within the second preset duration; and when any response message returned by the S-GW is not received within the second preset time, determining that the data link between the base station and the S-GW is in an abnormal state.

Further, the data link monitoring device further includes:

the generating module is used for generating alarm information;

and the first sending module is used for sending the alarm information to a network management system so that the network management system can prompt the S-GW with abnormality for the corresponding maintenance personnel according to the alarm information.

Further, the data link monitoring device further includes:

an obtaining module, configured to obtain an address of the S-GW in an abnormal state;

and the second sending module is used for sending the address of the S-GW to a network management system so that the network management system can output the address of the S-GW after receiving the address of the S-GW, and a corresponding maintainer can position the S-GW in an abnormal state according to the address of the S-GW.

Further, the data link monitoring device further includes:

a third sending module, configured to send an initial terminal message to a control plane network element MME after a radio resource control RRC connection of the base station is successfully established, so that the MME sends a context setup request message to the base station after receiving the initial terminal message;

a second extraction module, configured to extract, after the base station receives the context setting request message, an S-GW address carried in the context request message, and perform resource configuration;

the third sending module is further configured to send a context setup response message to the MME after the resource configuration is completed, so as to successfully establish the context of the terminal.

The specific implementation of the computer data link monitoring device of the present invention is basically the same as the embodiments of the data link monitoring method, and is not described herein again.

In addition, an embodiment of the present invention further provides a computer-readable storage medium, where a data link monitoring program is stored on the computer-readable storage medium, and when being executed by a processor, the data link monitoring program implements the steps of the data link monitoring method described above.

Note that the computer-readable storage medium may be provided in a base station.

The specific implementation of the computer-readable storage medium of the present invention is substantially the same as the embodiments of the data link monitoring method described above, and is not described herein again.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A data link monitoring method is applied to a base station, and is characterized by comprising the following steps:

after the context of the terminal is successfully established, receiving a handshake message sent by the terminal, wherein the handshake message is triggered when the terminal establishes connection with a service gateway (S-GW);

sending the handshake message to the S-GW in a preset mode;

when detecting that at least one response message carries a successful identifier, determining that a data link between the base station and the S-GW is in a normal state;

2. The method of claim 1, wherein the step of determining that the data link between the base station and the S-GW is in a normal state when it is detected that at least one of the response messages carries a successful identity comprises:

3. The method for monitoring a data link according to claim 2, wherein after the step of determining whether response data returned by the S-GW is received within a first preset time period when it is detected that at least one of the response messages carries a successful identifier, the method further comprises:

4. The data link monitoring method according to claim 1, wherein after the step of extracting the protocol identifier carried in the handshake message and determining the protocol type for transmitting the handshake message according to the protocol identifier, the method further comprises:

5. The method for monitoring data link according to claim 1, wherein after the step of controlling the cell corresponding to the base station to be in a blocking state to reconnect the terminal to other normally operating base stations when the data link between the base station and the S-GW is determined to be in an abnormal state based on the S-GW, the method further comprises:

6. The method for monitoring data link according to claim 1, wherein after the step of controlling the cell corresponding to the base station to be in a blocking state to reconnect the terminal to other normally operating base stations when the data link between the base station and the S-GW is determined to be in an abnormal state based on the S-GW, the method further comprises:

acquiring the address of the S-GW in an abnormal state;

7. The data link monitoring method according to any one of claims 1 to 5, wherein before the step of receiving the handshake message sent by the terminal after the terminal context is successfully established, the method further comprises:

8. A data link monitoring device, characterized in that the data link monitoring device comprises a memory, a processor and a data link monitoring program stored on the memory and executable on the processor, which data link monitoring program, when executed by the processor, implements the steps of the data link monitoring method according to any one of claims 1 to 7.

9. A data link monitoring device, the data link monitoring device comprising:

the detection module is used for receiving a handshake message sent by the terminal after the context of the terminal is successfully established, wherein the handshake message is triggered when the terminal is connected with a service gateway S-GW;

the monitoring module is used for sending the handshake message to the S-GW in a preset mode;

the control module is used for extracting a protocol identifier carried by the handshake message and determining the protocol type for transmitting the handshake message according to the protocol identifier;

if the protocol for transmitting the handshake message is determined to be a Transmission Control Protocol (TCP) according to the protocol identifier, detecting whether response messages sent by an S-GW carry abnormal identifiers, wherein the response messages are returned to a base station after the S-GW receives the handshake message;

10. A computer-readable storage medium, having stored thereon a data link monitoring program, which when executed by a processor, implements the steps of the data link monitoring method according to any one of claims 1 to 7.