CN111356165A - A terminal tracking method, device and storage medium - Google Patents

Abstract

The invention discloses a tracking method, equipment and a storage medium of a terminal, wherein the tracking method comprises the following steps: analyzing an uplink message of a user terminal; judging whether the uplink message characteristics obtained by analysis meet the preconfigured tracking terminal information or not; and when the user terminal is satisfied, tracking the user terminal. The invention does not need to rely on a core network, does not need the cooperation of communication node equipment and the core network, can quickly and accurately identify the user terminal to be tracked, effectively improves the identification rate of the tracking terminal, can realize continuous tracking, and further effectively solves the problem that the TMSI tracking mode is difficult to continuously track.

Description

A terminal tracking method, device and storage medium

technical field

The present invention relates to the field of communication technologies, and in particular, to a terminal tracking method, device and storage medium.

Background technique

At present, the wireless network tracking method for a single UE (User Equipment, user terminal) mainly includes the tracking task issued by the core network, the tracking method of the terminal IMSI (International Mobile Subscriber Identification Number, International Mobile Subscriber Identification Number), and the TMSI (Temporary Mobile Subscriber Identity, Temporary Mobile Subscriber Identity). Mobile Subscriber ID) tracking method.

Among them, the core network sends the tracking task mainly through the core network. This method depends on the core network, requires the cooperation of the two, and there are some interoperability problems, such as the correspondence between the IMSI information of the terminal and the TraceReference. Report to TCE and other issues, the actual use is more troublesome. The way of TMSI tracking depends on the rules of MME (Mobility Management Entity, network node) allocating TMSI numbers. The UE needs to access repeatedly, compare the allocated TMSIs, and find the allocation rules to identify the UE. In addition, the TMSI allocation strategy of the MME is very flexible. Affected by factors such as access duration, handover, and re-access, the MME may re-allocate the TMSI, and continuous tracking is very difficult. Therefore, the current UE tracking method has problems such as identification failure.

SUMMARY OF THE INVENTION

In order to overcome the above defects, the technical problem to be solved by the present invention is to provide a terminal tracking method, device and storage medium, so as to improve the identification rate of the tracking terminal.

To solve the above technical problem, a method for tracking a terminal in an embodiment of the present invention includes:

Parse the uplink packets of the user terminal;

Determine whether the characteristics of the uplink packets obtained by parsing satisfy the pre-configured tracking terminal information;

When satisfied, the user terminal is tracked.

In order to solve the above technical problem, a communication node device in an embodiment of the present invention includes a memory and a processor, the memory stores a tracking program of the terminal, and the processor executes the program to implement any of the above. steps of the method described.

In order to solve the above technical problem, a computer-readable storage medium in an embodiment of the present invention stores a tracking program of a terminal, and the computer program can be executed by at least one processor to implement the steps of any of the methods described above. .

The beneficial effects of the embodiments of the present invention are as follows:

In the above-mentioned embodiments, the user terminal can be traced by judging whether the characteristics of the uplink packet obtained by the analysis satisfy the pre-configured tracking terminal information, so that the user terminal can be traced when it is satisfied. With the cooperation of the network, the user terminal that needs to be tracked can be quickly and accurately identified, the identification rate of the tracking terminal can be effectively improved, and continuous tracking can be achieved, thereby effectively solving the problem of continuous tracking difficulties in the TMSI tracking method.

The above description is only an overview of the technical solutions of the present invention, in order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand , the following specific embodiments of the present invention are given.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are for the purpose of illustrating preferred embodiments only and are not to be considered limiting of the invention. Also, the same components are denoted by the same reference numerals throughout the drawings. In the attached image:

1 is a flowchart of a method for tracking a terminal in an embodiment of the present invention;

2 is a flowchart of a base station identifying and tracking a user terminal in an embodiment of the present invention;

Fig. 3 is the flow chart of the dual-connection LTE side initiating tracking first in the embodiment of the present invention;

Fig. 4 is the flow chart of the dual-connection NR side initiating tracking in the embodiment of the present invention;

Fig. 5 is the flow chart of switching scene in the embodiment of the present invention;

6 is a flowchart of a base station identifying a UDP packet filling UE in an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a communication node device in an embodiment of the present invention.

Detailed ways

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be more thoroughly understood, and will fully convey the scope of the present disclosure to those skilled in the art.

In the following description, suffixes such as 'module', 'component' or 'unit' used to represent elements are used only to facilitate the description of the present invention and have no specific meaning per se. Thus, "module", "component" or "unit" may be used interchangeably.

Prefixes such as "first", "second", etc., used to distinguish elements are used only to facilitate the description of the present invention and have no specific meaning per se.

Example 1

An embodiment of the present invention provides a method for tracking a terminal. As shown in FIG. 1 , the method includes:

S10, parse the uplink packet of the user terminal;

S12, judging whether the characteristic of the uplink packet obtained by parsing satisfies the preconfigured tracking terminal information;

S14, when satisfied, track the user terminal.

The tracking terminal is the user terminal that the base station needs to track, and the tracking terminal information may include one or more of the protocol type of the uplink message, the IP address of the opposite end, and the packet length of the uplink message, and of course it may also include the uplink message. The content of the data packet of the text. The protocol type can be a ping (network diagnostic tool) packet request using the ICMP (Internet Control Message Protocol, Internet Control Message Protocol) protocol, and the peer IP address, ping packet length and data packet content of the ping packet request (the content of the data packet can be Optional); it can also use the UDP (User Datagram Protocol, User Datagram Protocol) upstream packet filling protocol, using the destination IP address of the packet, the length of the UDP packet and the content of the data packet (the content of the data packet is optional; you can also It is a protocol that can use the upstream TCP (Transmission Control Protocol, Transmission Control Protocol) to fill the packet, using the destination IP address and port of the packet, the length of the TCP message and the content of the data packet (the content of the data packet is optional).

In this embodiment of the present invention, the method is executed on the side of a communication node, and the communication node may be a base station or the like.

In the embodiment of the present invention, by judging whether the characteristics of the uplink packets obtained by parsing satisfy the preconfigured tracking terminal information, the user terminal can be traced when it is satisfied, and thus does not need to depend on the core network, and does not require a communication node device and a core network. With the cooperation, the user terminal that needs to be tracked can be quickly and accurately identified, the identification rate of the tracking terminal can be effectively improved, and continuous tracking can be achieved, thereby effectively solving the problem of difficult continuous tracking in the TMSI tracking method.

On the basis of the above-mentioned principle embodiments, several specific and optional implementation manners are given below to refine and optimize the embodiments of the present invention, so as to make the implementation of the solutions of the embodiments of the present invention more convenient and accurate. It should be noted that the following embodiments can be arbitrarily combined with each other unless there is conflict.

In some embodiments, before judging whether the characteristics of the uplink packets obtained by parsing satisfy the preconfigured tracking terminal information, the method may include:

The tracking terminal information is configured, and the tracking terminal information includes one or more of the protocol type of the uplink message, the IP address of the opposite end, and the data packet length of the uplink message.

Wherein, the tracking terminal information also includes the data packet content of the uplink message;

When the tracking terminal information is data packet content of an uplink packet, the configuring the tracking terminal information includes:

The content of the data packet is configured at the head, middle or tail of the data packet.

Taking the base station as an example, in detail, in some embodiments, the base station can be configured to track UE information, for example, configure the protocol type of the uplink message, the IP address of the peer, the length of the data packet and the partial content of the data packet (the content of the data packet can be Not configured, it can also be configured as header part data, middle part data, tail part data, which can be flexibly configured).

Then, the UE terminal initiates corresponding services, such as a ping packet request or a UDP uplink packet filling.

That is, the base station judges whether the service type of the uplink data packet conforms to the configured protocol type, and judges whether the IP address, data packet length, and data packet content (optional) of the peer end meet the configuration requirements, and if so, then Track this UE.

Among them, the IP address of the opposite end can be the IP address of the real host, or it can be an IP address that is not configured in the network; for the length of the data packet, a special length is generally specified. For example, the ping request is generally different from the system default ping packet length of 32 bytes. Or 64 bytes, such as 97 bytes; or the length of the data packet meets special conditions, such as length modulo 7 is 0, then the lengths of 97, 107, 117, etc. all meet the requirements.

By analogy, the system can also configure a set of IP addresses and data lengths to identify multiple UEs that meet the conditions. And the number of tracked UEs can be set. If the number of tracked UEs by the base station reaches a certain number, the identification will be stopped to reduce system resource consumption.

That is, in some embodiments, when the tracking terminal information is the peer IP address and the data packet length of the uplink packet, the configuring the tracking terminal information includes:

Configure multiple pairs of the peer IP address and the packet length of the upstream packet; each pair of the peer IP address and the packet length of the upstream packet corresponds to one tracking terminal information. After tracking the user terminal when satisfied, it includes:

When the tracked user terminal reaches the preset number, stop parsing the uplink packets of the user terminal.

For dual-connection scenarios, such as NSA scenarios, after the UE accesses LTE, a 5G base station is added as a secondary connection. If the UE initiates the corresponding service before adding the auxiliary connection, after the LTE base station identifies and tracks the UE, it will track the information of the UE when adding the auxiliary connection, including information such as the protocol type, the IP address of the peer, the length of the data packet and the partial content of the data packet, etc. It is sent to the 5G base station, and the 5G base station tracks and reports the tracking data of the UE. If the UE initiates the corresponding service after adding the secondary connection, after identifying the tracking UE, the 5G base station notifies the primary connection LTE base station of the UE's tracking information.

That is to say, in some embodiments, the judging whether the characteristics of the uplink packets obtained by parsing satisfy the pre-configured tracking terminal information may include:

matching the uplink message feature with the tracking terminal information;

According to the matching result, it is judged whether the characteristics of the uplink message satisfy the tracking terminal information.

If the UE is handed over, the base station on the source side carries the UE information to the target side, and the base station on the target side tracks and reports the tracking data of the UE. That is to say, in some embodiments, when the user terminal accesses from the primary connection to the secondary connection, the tracking terminal information is sent to the secondary connection. In this embodiment, when the UE is handed over, the UE tracking information can be carried to the base station on the target side, so as to continuously track the UE.

In some implementations of the embodiments of the present invention, the UE uplink message is parsed, the message type is determined, and the method of combining the IP address of the opposite end + the data packet length + the data packet content is used to analyze whether it is a UE that needs to be tracked. The content of the data packet is an optional condition. If the content of the data packet is compared, the content of the header part, the content of the tail part, or the content of the middle part can be compared, which can be flexibly configured.

Uplink packets can be judged by ping packet requests or UDP uplink packets. The ping packet request can set a special peer IP address, and the base station uses the combination of parameters such as the peer address of the ping packet and the length of the ping packet as the basis for identification. Ping packet length can be a set of special length addresses (the default length of most operating systems is 32 bytes or 64 bytes), such as length 79, 85, etc., or meet special conditions, such as length mantissa is 7, that is, ping The remainder of the packet length and 7 is 0. The UDP uplink message can be used to identify and track the UE according to the peer IP address, message length, and part of the content of the data packet, so that the UE to be tracked can be quickly and accurately identified without relying on the core network. Carry the UE tracking information to the target side base station, and keep tracking the UE.

Embodiment 2

This embodiment of the present invention describes the tracking method of the terminal involved in Embodiment 1 through the interaction process between the base station and the UE. As shown in FIG. 2 , the interaction process includes:

Step 101, the base station configures the tracking terminal information of the tracking UE, including the IP address and the length of the ping packet requested by the ping packet.

In step 102, the UE side initiates a ping packet service, and the ping packet requests the peer end's IP address and the ping packet length to meet the information configured by the base station. The APP can also be customized on the UE side, and the IP address of the peer end of the ping packet request and the length of the qualified ping packet request are preset.

Step 103, the base station parses the uplink message, identifies if it is an ICMP message, and the parsed message type is the peer IP address of the ping request and the data packet length of the ping request, and if the parsing result satisfies the configured tracking terminal information, the UE is tracked.

Step 104, the base station reports and tracks UE-related data, such as signaling, scheduling information, and the like.

Embodiment 3

The embodiment of the present invention describes the tracking method of the terminal involved in the first embodiment by describing the identification process of the main connection in the dual connection scenario. The embodiment of the present invention takes the NSA networking as an example, the LTE base station is used as the main connection, and the 5G is used as the auxiliary connection; As shown in Figure 3, the identification process includes:

Step 11, the LTE and 5G base stations track UE information through the network management configuration, including the peer IP address of the ping packet and the length of the ping packet.

Step 12, the UE accesses the eNodeB and initiates a ping packet request.

Step 13, the eNodeB parses the uplink message, and if it is a ping packet request message, and the peer IP address and the ping packet length satisfy the tracking UE information, it tracks the UE.

Step 14: After the UE measures the information of the 5G base station, it reports to the eNodeB, and the eNodeB carries the UE's tracking information (the peer IP address of the ping packet and the length of the ping packet) to the 5G base station when adding a secondary connection.

Step 15, the 5G base station determines that the tracking information meets the tracking conditions, and then tracks the UE.

Embodiment 4

This embodiment of the present invention describes the tracking method of the terminal involved in the first embodiment through the identification process of the auxiliary connection in the dual-connection scenario. In the embodiment of the present invention, the NSA networking is used as an example, the LTE base station is used as the main connection, and the 5G is used as the auxiliary connection. As shown in Figure 4, the identification process includes:

Step 21, the LTE and 5G base stations track UE information through the network management configuration, including the peer IP address of the ping packet and the length of the ping packet.

Step 22, the UE accesses the eNodeB. After the UE measures the 5G base station cell, it reports to the eNodeB, and the eNodeB adds a secondary connection.

Step 23, the UE initiates a ping packet service request.

Step 24, the base station identifies and tracks the UE, and reports data. For example, the 5G base station parses the uplink packet and determines that if it is a ping packet request packet, and the peer IP address and ping packet length of the ping packet satisfy the tracking UE information, the UE will be traced.

Step 25, notify the primary connection to track the UE. For example, the 5G base station carries the UE tracking information (the peer IP address of the ping packet and the length of the ping packet) to the eNodeB side through an X2 message (such as SN ModificationRequired).

Step 26, if the eNodeB judges that the tracking information of the UE satisfies the condition, it tracks the UE. The base station reports UE tracking data.

Embodiment 5

This embodiment of the present invention describes the method for tracking the terminal involved in the first embodiment through the auxiliary connection identification process of the handover scenario. The handover scenario in the embodiment of the present invention includes X2 handover of LTE and XN handover of 5G base station, as shown in FIG. 5 . The identification process includes:

Step 31, the base station tracks the UE information through the network management configuration, including the peer IP address of the ping packet and the length of the ping packet. The base station includes the source station and the target station of the handover.

Step 32, after the UE accesses or switches to the source station, it initiates a ping packet service request.

Step 33, the base station reports UE tracking. For example, the source station parses the uplink packet of the UE. If it is a ping packet request packet, and the peer IP address of the ping request and the length of the ping packet meet the conditions, the UE will be tracked.

Step 34, the UE is handed over, and the source station carries the UE tracking information (the peer IP address of the ping packet and the length of the ping packet) in the handover request message to the target station.

Step 35, the base station identifies and tracks the UE, and reports data. For example, if the target station determines that the tracking information satisfies the condition, it continues to track the UE.

Embodiment 6

In this embodiment of the present invention, the base station identifies the UE process of UDP packet filling, and describes the tracking method of the terminal involved in the first embodiment. As shown in FIG. 6 , the identification process includes:

Step 201, the base station configures and tracks the information of the UE, including the message type as UDP uplink message, peer IP address, UDP message length, and content of the header of the checked message.

Step 202, the UE side initiates an uplink UDP packet filling service.

Step 203, the base station parses the UE uplink message, identifies if it is a UDP message, and the peer IP address and data packet length meet the requirements, then compares the data packet header content with the configuration comparison content, and tracks the UE.

Step 204, the base station tracks the UE and reports relevant data.

Embodiment 7

An embodiment of the present invention provides a communication node device, the communication node device includes a memory 20 and a processor 22, the memory 20 stores a tracking program of a terminal, and the processor 22 executes the program to implement the example in the embodiment Steps of the method described in any one of Embodiments 1 to 6. The communication node device may be a communication node such as a base station.

Embodiment 8

An embodiment of the present invention provides a computer-readable storage medium, where the storage medium stores a tracking program of a terminal, and the computer program can be executed by at least one processor, so as to implement any one of Embodiments 1 to 6. steps of the method described.

When the seventh embodiment and the eighth embodiment are specifically implemented, refer to the first embodiment to the sixth embodiment, which have corresponding technical effects.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages or disadvantages of the embodiments.

From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on this understanding, the technical solutions of the present invention can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk, CD), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present invention.

The embodiments of the present invention have been described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of the present invention, without departing from the scope of protection of the present invention and the claims, many forms can be made, which all belong to the protection of the present invention.

Claims (10)

1. A tracking method for a terminal, wherein the method comprises: Parse the uplink packets of the user terminal; Determine whether the characteristics of the uplink packets obtained by parsing satisfy the pre-configured tracking terminal information; When satisfied, the user terminal is tracked. 2. The method according to claim 1, wherein before judging whether the characteristic of the uplink message obtained by parsing satisfies the preconfigured tracking terminal information, the method comprises: The tracking terminal information is configured, and the tracking terminal information includes one or more of the protocol type of the uplink message, the IP address of the opposite end, and the data packet length of the uplink message. 3. The method according to claim 2, wherein the tracking terminal information further comprises packet content of an uplink message; When the tracking terminal information is data packet content of an uplink packet, the configuring the tracking terminal information includes: The content of the data packet is configured at the head, middle or tail of the data packet. 4. The method according to claim 2, wherein, when the tracking terminal information is the peer IP address and the data packet length of the uplink message, the configuring the tracking terminal information comprises: Configure multiple pairs of the peer IP address and the packet length of the upstream packet; each pair of the peer IP address and the packet length of the upstream packet corresponds to one tracking terminal information. 5. The method of claim 4, wherein, when satisfied, after tracking the user terminal, comprising: When the tracked user terminal reaches the preset number, stop parsing the uplink packets of the user terminal. 6. The method of claim 1, wherein the judging whether the feature of the uplink message obtained by parsing satisfies the preconfigured tracking terminal information comprises: matching the uplink message feature with the tracking terminal information; According to the matching result, it is judged whether the characteristics of the uplink message satisfy the tracking terminal information. 7. The method according to any one of claims 1-6, wherein the method further comprises: When the user terminal accesses from the primary connection to the secondary connection, the tracking terminal information is sent to the secondary connection. 8. The method according to any one of claims 1-6, wherein the method further comprises: When the user terminal is handed over from the source access node to the target node, the tracking terminal information is sent to the target node. 9. A communication node device, characterized in that the device comprises a memory and a processor, the memory stores a tracking program of the terminal, and the processor executes the program to implement any one of claims 1-8. A step of the method. 10. A computer-readable storage medium, characterized in that the storage medium stores a tracking program of the terminal, and the computer program can be executed by at least one processor, so as to realize any one of claims 1-8. steps of the method described.

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