WO2012167543A1

WO2012167543A1 - Method, device and system for cell tracing

Info

Publication number: WO2012167543A1
Application number: PCT/CN2011/082013
Authority: WO
Inventors: 翁在新
Original assignee: 华为技术有限公司
Priority date: 2011-11-10
Filing date: 2011-11-10
Publication date: 2012-12-13
Also published as: CN102511179B; CN102511179A

Abstract

Provided are a method, device and system for cell tracing, relating to the technical field of communications. The method includes: receiving a cell tracing activation command sent from a network element management system, wherein the cell tracing activation command at least contains cell ID information; detecting whether or not user equipment accessed the cell identified by the cell ID information; when having detected that user equipment accessed the cell identified by the cell ID information, judging whether or not the user equipment that has gained access has established a first link with a core network; and, if the user equipment that has gained access has established the first link with the core network, sending a cell tracing command to a network element of the core network, so that the network element of the core network traces signalling of the user equipment on the first link. The technical solution of the present invention solves the problem in the prior art that a core network cannot trace the signalling of user equipment in a designated cell.

Description

Method, device and system for cell tracking

The present invention relates to the field of communications technologies, and in particular, to a method, device, and system for cell tracking. Background technique

In a wireless communication network, there may be cases where the network KPI (Key Performance Indicator) of a certain area is degraded or the user complaints are concentrated. In the above case, it is usually necessary to analyze the network KPI degradation cause or process the user. Complaints for the optimization of wireless communication networks. In the prior art, the root cause of the network KPI drop, the handling of user complaints, and the optimization are obtained by acquiring all the signaling of the network KPI drop area or all users in the user complaint concentration area or the user information of the qualified user, and analyzing the obtained user signaling. Wireless communication network.

In the LTE (Long Term Evolution) wireless communication network, the core network can only know the base station information to which a certain user belongs, but cannot know the cell information it is located in. Therefore, the prior art cannot implement core network tracking such as KPI. The signaling of users in the area such as the drop zone or the user complaint concentration area, so that the analysis of relevant user signaling cannot be performed to obtain the root cause of the network KPI drop, handle user complaints, and optimize the wireless communication network. Summary of the invention

In order to obtain user signaling in a specified area in an LTE wireless communication network, an embodiment of the present invention provides a method, device, and system for cell tracking. The technical solution is as follows:

A method for cell tracking, the method comprising:

Receiving a cell tracking activation command sent by the network element management system, where the cell tracking activation command includes at least cell ID information;

Detecting whether there is user equipment access in the cell identified by the cell ID information;

When it is detected that the user equipment accesses the cell identified by the cell ID information, it is determined whether the accessed user equipment establishes a first link with the core network;

And if the accessed user equipment establishes the first link with the core network, sending a cell tracking command to the core network element, so that the core network element tracks the signaling of the user equipment on the first link.

A method for cell tracking, the method comprising:

Receiving a cell tracking command sent by the access network element, where the cell tracking command is included in the cell user equipment Information of the first link;

Tracking signaling of the user equipment on the first link.

An access network network element, where the access network element includes: a receiving module, a detecting module, a determining module, and a first sending module;

The receiving module is configured to receive a cell tracking activation command sent by the network element management system, where the cell tracking activation command includes at least cell ID information;

The detecting module is configured to detect whether a user equipment is accessed in the cell identified by the cell ID information, where the determining is performed, when the detecting module detects that the user equipment accesses the cell ID information When the identified cell is located, it is determined whether the accessed user equipment establishes a first link with the core network;

The first sending module is configured to: when the determining module determines that the accessed user equipment establishes the first link with the core network, send a cell tracking command to the core network element, so that the core network element Tracking signaling of the user equipment on the first link.

A core network element, the core network element includes: a receiving module and a tracking module;

a first detecting module, configured to detect whether the accessed user equipment has a cell handover, and when detecting that the accessed user equipment performs cell handover, stop tracking the signaling of the accessed user equipment; or

The second detecting module is configured to detect whether the first link is disconnected, and stop detecting the signaling of the accessed user equipment when detecting that the first link is disconnected.

A cell tracking system includes the access network element and the core network element described above.

The technical solution of the present invention solves the problem that the core network cannot track the signaling of the user equipment in the designated cell in the prior art. DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in view of the drawings.

Figure la is a flowchart of a method for cell tracking provided by Embodiment 1 of the present invention;

FIG. 1b is a flowchart of another method for cell tracking provided by Embodiment 1 of the present invention;

2 is a flowchart of a method for cell tracking according to Embodiment 2 of the present invention;

3 is a flowchart of a method for cell tracking according to Embodiment 2 of the present invention;

4 is a structural diagram of an access network element according to Embodiment 3 of the present invention; FIG. 5 is a schematic diagram of a core network element according to Embodiment 4 of the present invention; FIG.

6 is a schematic diagram of a system for cell tracking according to Embodiment 5 of the present invention, and a specific implementation manner thereof.

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

Example 1

Referring to FIG. la, a method for cell tracking specifically includes the following content:

Step 101a: Receive a cell tracking activation command sent by the network element management system, where the cell tracking activation command includes at least cell ID information.

Step 102a: Detect whether there is user equipment access in the cell identified by the cell ID information.

Step 103a: When it is detected that the user equipment accesses the cell identified by the cell ID information, it is determined whether the accessed user equipment establishes the first link with the core network;

Step 104a: If the accessed user equipment establishes a first link with the core network, send a cell tracking command to the core network element, so that the core network element tracks the signaling of the user equipment on the first link.

Receiving, by the cell tracking activation command sent by the network element management system, detecting whether there is user equipment access in the cell identified by the cell ID information in the cell tracking activation command, and detecting that the user equipment accessing the cell ID information identifies When the cell and the accessed user equipment establish a first link with the core network, the cell tracking command is sent to the core network element, so that the core network element tracks the technical solution of the signaling of the user equipment on the first link, The problem that the core network cannot track the signaling of the user equipment in the specified cell in the prior art is solved.

Referring to FIG. 1b, a method for cell tracking specifically includes the following content:

Step 101b: Receive a cell tracking command sent by the network element of the access network, where the cell tracking command includes information about the first link established by the user equipment in the cell;

Step 102b: Track signaling of the user equipment on the first link.

The implementation of the technical solution for tracking the signaling of the user equipment on the first link by receiving the cell tracking command sent by the access network element and the cell tracking command includes the information of the first link established by the user equipment in the cell The problem that the core network cannot track the signaling of the user equipment in the specified cell in the prior art is solved.

Example 2

Referring to FIG. 2, a method for cell tracking provided by an embodiment of the present invention is specifically described in the following, and specifically includes the following steps:

Step 201: The network element management system of the access network element sends a cell tracking activation command to the access network element, where The area tracking activation command includes at least the cell ID information. Specifically, the cell ID information may be a cell ID or a cell ID list.

In the embodiment of the present invention, the cell tracking activation command further includes information such as a tracking interface, a tracking depth, a tracking task ID, and a signaling collection server address.

Step 202: The access network element receives the cell tracking activation command sent by the network element management system, and detects whether there is user equipment access in the cell identified by the cell ID information carried in the cell tracking activation command.

When it is detected that the user equipment accesses the cell identified by the cell ID message, step 203 is performed;

When it is detected that no user equipment accesses the cell identified by the cell ID information, the operation of detecting the user equipment access in the cell identified by the cell ID message carried in the cell tracking activation command is continued.

Step 203: The access network element starts a cell tracking task, and tracks signaling of the accessed user equipment.

The step further includes: the access network element reporting the obtained signaling to the signaling collection server;

In the embodiment of the present invention, when the cell tracking activation command received by the access network element further includes the address information of the signaling collection server, the access network element may report the traced signaling to the The signaling collection server corresponding to the address of the signaling collection server, so that the network optimization personnel can obtain relevant signaling information from the signaling collection server when performing network optimization, wherein the signaling collection server can be pre-deployed by the operator.

Step 204: The access network element determines whether the connected user equipment establishes a first link with the core network, where the first link may be an S1 link.

If the connected user equipment establishes a first link with the core network, step 205 is performed;

If the accessed user equipment does not establish a first link with the core network, the operation process ends;

Step 203 and step 204 do not have strict execution order requirements. In a specific implementation, step 203 and step 204 may be performed simultaneously, or step 203 may be performed before or after step 204, and the embodiment of the present invention does not specifically Claim.

Step 205: The access network element sends a cell tracking command (Cell Traffic Trace) to the core network element.

The cell tracking command includes at least the first link information established by the accessed user equipment. In the embodiment of the present invention, the cell tracking command further includes information such as a tracking interface, a tracking depth, a tracking task ID, and a signaling collection server address.

Step 206: The core network element receives the cell tracking command sent by the access network element, and tracks the signaling of the user equipment on the first link.

Specifically, the core network element tracks the signaling of the user equipment on the communication interface on the first link, and the communication interface may include an X2 interface or an M2 interface.

Further, the core network element reports the obtained signaling to the signaling collection server;

In the embodiment of the present invention, the cell tracking command received by the core network element further includes a signaling collection server. When the address information is obtained, the access network element can report the traced signaling to the signaling collection server corresponding to the address of the signaling collection server, so that the network optimization personnel can obtain the server from the signaling when performing network optimization. Obtaining relevant signaling information, where the signaling collection server may be pre-deployed by the operator;

In the embodiment of the present invention, the signaling collection server described in step 203 and step 206 may be the same server. In the embodiment of the present invention, the network element of the access network tracks the signaling of the user equipment accessed in the cell (the cell corresponding to the cell ID information carried by the cell tracking activation command), and the core network element is in the designated cell. The tracking of the user equipment is to obtain the signaling of the tracked user equipment by tracking the first link established by the user equipment; the access network element and the core network element respectively signal the tracked user equipment The network optimizer can obtain the signaling of the user equipment in the specified cell from the signaling collection server, and analyze the obtained signaling to implement the corresponding network optimization. Or handle user complaints.

In the embodiment of the present invention, in the process of tracking the signaling of the user equipment accessed by the access network element in the cell (the cell corresponding to the cell ID information carried by the cell tracking activation command), if the user actively stops For tracking the signaling of the user equipment accessed in the specified cell, the network tracking system of the access network element may send a cell tracking deactivation command to the access network element to access the network element and the core network. The element stops the tracking of the signaling of the user equipment accessed in the specified cell. Referring to FIG. 3, a cell tracking method includes the following operations:

Step 301: The network management system of the access network element sends a cell tracking deactivation command to the access network element, where the cell tracking deactivation command includes at least a tracking task ID.

Step 302: The access network element receives the cell tracking deactivation command sent by the network element management system, and stops tracking the signaling of the accessed user equipment.

Specifically, the access network element stops the tracking of the signaling of the accessed user equipment corresponding to the tracking task ID; Step 303: The first link established by the access network element through the accessed user equipment to the core The network element forwards the cell tracking deactivation command, so that the core network element also stops tracking the signaling of the user equipment accessed in the designated cell;

In a specific implementation, the format of the cell tracking deactivation command forwarded by the access network element through the first link may be as follows:

Trace ID 〃 Tracking task ID

Or

UE SI Appl ication ID List 〃 Tracking the SI link list of all users in the cell corresponding to the task ID

Here, the UE SI Application ID List may contain only one record.

Step 304: The core network element receives the cell tracking deactivation command sent by the access network element, and stops tracking the signaling of the user equipment on the first link. Specifically, the signaling on the communication interface corresponding to the user equipment on the first link is stopped, and the communication interface may include an X2 interface or an M2 interface.

In the embodiment of the present invention, after receiving the cell tracking deactivation command, the core network element parses the cell tracking deactivation command, and stops tracking the signaling of the user equipment on the first link according to the parsed tracking task ID. .

In the embodiment of the present invention, the network optimizer needs to know the signaling situation of the user equipment accessed in the designated cell, and also needs to know the signaling of the accessed user equipment on the S1 link to analyze the signaling of the user equipment. Therefore, network optimization or solving user complaints and other issues. Once the access network element stops tracking the signaling of the user equipment accessed in the specified cell, even if the core network element tracks the signaling of the user equipment on the S1 link, it does not make sense, so the access network After stopping the tracking of the signaling of the user equipment accessed in the specified cell, the UE notifies the core network element to stop the tracking of the signaling of the user equipment on the S1 link, so as to reduce the signaling overhead in the network. To the extent that you can save network resources.

In addition, the embodiment of the present invention further includes:

The access network element detects in real time whether the accessed user equipment has a cell handover, and detects that the accessed user equipment performs cell handover, and stops signaling of the accessed user equipment; or

The access network element detects whether the first link is disconnected in real time, and stops detecting the signaling of the accessed user equipment when detecting that the first link is disconnected.

During the process of tracking the signaling of the user equipment on the first link, the core network element may also detect whether the first link is disconnected in real time, and when detecting that the first link is disconnected, Stop tracking the signaling of the user equipment on the first link;

Or, the core network element detects whether the user equipment on the first link is switched, and detects that the user equipment on the first link is switched, and stops on the first link. The tracking of the signaling of the user equipment is implemented by the technical solution of the present invention. Specifically, the cell tracking activation command sent by the network element management system is received, and the cell tracking activation command is detected. Whether the user equipment is accessed in the cell identified by the cell ID information, and when the user equipment accesses the cell identified by the cell ID information and the accessed user equipment establishes the first link with the core network, the cell is sent. Tracking the command to the core network element, the core network element tracking the signaling of the user equipment on the first link when receiving the cell tracking command, and solving the problem that the core network cannot perform the signaling of the user equipment in the designated cell in the prior art. Tracking issues. Further, the core network element actively detects the first link link status corresponding to the users, and detects that the user actively releases the link or switches, and the core network element closes the tracking of the user equipment on the first link. The task, if the user actively stops the user signaling tracking of the hotspot area, the access network element actively sends a cell tracking deactivation command to the core network element through the first link, and the core network receives the cell tracking deactivation command. Stop the signaling tracking of the user equipment, and solve the problem that the core network sends the user equipment in the designated cell. Let's track the problem. Example 3

Referring to FIG. 4, an access network element is the same as the access network element in the method embodiment 2, and includes: a receiving module 401, a detecting module 402, a determining module 403, and a first sending. Module 404;

The receiving module 401 is configured to receive a cell tracking activation command sent by the network element management system, where the cell tracking activation command includes at least cell ID information.

The cell ID information includes a cell ID or a cell ID list.

The detecting module 402 is configured to detect whether a user equipment is accessed in the cell identified by the cell ID information, and the determining module 403 is configured to: when the detecting module 402 detects that the user equipment accesses the cell identified by the cell ID information, Whether the access user equipment establishes a first link with the core network;

The first sending module 404 is configured to: when the determining module 403 determines that the accessed user equipment establishes the first link with the core network, send a cell tracking command to the core network element, so that the core network element tracks the first link. Signaling of user equipment.

In the embodiment of the present invention, the access network element further includes:

The tracking module is configured to: when the detecting module 402 detects that the user equipment accesses the cell identified by the cell ID information, the signaling of the accessed user equipment is tracked, and the traced signaling is reported to the signaling collection server;

The interrupting module is configured to stop tracking signaling of the accessed user equipment when receiving the cell tracking deactivation command sent by the network element management system;

a second sending module, configured to: when receiving the cell tracking deactivation command sent by the network element management system, forward the cell tracking deactivation command to the core network element by using the first link, so that the core network element stops tracking the first Signaling of user equipment on the link.

a first detecting module, configured to detect whether a cell handover occurs in the accessed user equipment, and stop detecting the signaling of the accessed user equipment when detecting that the accessed user equipment performs cell handover; or

Receiving, by the cell tracking activation command sent by the network element management system, detecting whether there is user equipment access in the cell identified by the cell ID information in the cell tracking activation command, and detecting that the user equipment accessing the cell ID information identifies When the cell and the accessed user equipment establish a first link with the core network, the cell tracking command is sent to the core network element, so that the core network element tracks the technical solution of the signaling of the user equipment on the first link, The problem that the core network cannot track the signaling of the user equipment in the specified cell in the prior art is solved. Example 4

Referring to FIG. 5, a core network element, the core network element is the same as the core network element in the method embodiment 2, and includes: a receiving module 501 and a tracking module 502;

The receiving module 501 is configured to receive a cell tracking command sent by the access network element, where the cell tracking command includes information about the first link established by the user equipment in the cell.

The tracking module 502 is configured to track signaling of the user equipment on the first link.

The core network element also includes:

a first detecting module, configured to detect whether a user equipment has a cell handover on the first link, and when detecting that the user equipment performs cell handover on the first link, stop tracking the signaling of the user equipment on the first link; or

a second detecting module, configured to detect whether the first link is disconnected, and stop detecting the signaling of the user equipment on the first link when detecting that the first link is disconnected; or

The stopping module is configured to receive a cell tracking deactivation command sent by the access network element to stop tracking signaling of the user equipment on the first link.

The implementation of the technical solution for tracking the signaling of the user equipment on the first link by receiving the cell tracking command sent by the access network element and the cell tracking command includes the information of the first link established by the user equipment in the cell The problem that the core network cannot track the signaling of the user equipment in the specified cell in the prior art is solved. Further, the core network element actively detects the first link link status corresponding to the users, and detects that the user actively releases the link or switches, and the core network element closes the tracking of the user equipment on the first link. The task, if the user actively stops the user signaling tracking of the hotspot area, the access network element actively sends a cell tracking deactivation command to the core network element through the first link, and the core network receives the cell tracking deactivation command. The signaling tracking of the user equipment is stopped, and the problem of signaling tracking of the user equipment in the designated cell by the core network is solved. Example 5

Referring to FIG. 6, a cell tracking system includes an access network element 60 and a core network element 61. Specifically, the access network element 60 and the access network element described in Embodiment 3 The structure and function are the same, and the details are not described here. The core network element 61 has the same structure and function as the core network element described in Embodiment 4, and details are not described herein again.

The implementation of the technical solution for tracking the signaling of the user equipment on the first link by receiving the cell tracking command sent by the access network element and the cell tracking command includes the information of the first link established by the user equipment in the cell The problem that the core network cannot track the signaling of the user equipment in the specified cell in the prior art is solved. Further, the core network element actively detects the first link link status corresponding to the users, and detects that the user actively releases the link or switches, and the core network element closes the tracking of the user equipment on the first link. Task, if the user actively stops the hotspot The user signal tracking of the domain, the access network element actively sends a cell tracking deactivation command to the core network element through the first link, and the core network stops signaling tracking to the user equipment when receiving the cell tracking deactivation command. The problem of signaling tracking of the user equipment in the designated cell by the core network is solved. The methods, devices, and system embodiments of the present invention can be referenced to each other. In particular, since the entire process has been described in detail in the method, some details of the device and system embodiments are not described in detail, but reference may be made to the method embodiments. A person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium. The storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Claims

Claim

A method for tracking a cell, the method comprising:

The method according to claim 1, wherein, when detecting that a user equipment accesses the cell identified by the cell ID information, the method further includes: tracking signaling of the accessed user equipment, The signaling obtained by the tracking is reported to the signaling collection server.

The method according to claim 2, wherein the method further comprises: stopping receiving signaling of the accessed user equipment when receiving the cell tracking deactivation command sent by the network element management system And forwarding, by the first link, the cell tracking deactivation command to the core network element, so that the core network element stops tracking signaling of the user equipment on the first link.

4. The method according to claim 2, wherein the method further comprises:

Detecting whether the accessed user equipment has a cell handover, and detecting that the accessed user equipment performs cell handover, and stops tracking the signaling of the accessed user equipment; or

Detecting whether the first link is disconnected, and stopping detecting the signaling of the accessed user equipment when detecting that the first link is disconnected.

A method for tracking a cell, the method comprising:

Receiving a cell tracking command sent by the network element of the access network, where the cell tracking command includes information about the first link established by the user equipment in the cell;

Tracking signaling of the user equipment on the first link.

The method according to claim 5, wherein the method further comprises:

Detecting whether the user equipment on the first link has a cell handover, and detecting that the user equipment on the first link performs cell handover, and stops tracking the signaling of the user equipment on the first link; or

Detecting whether the first link is disconnected, and stopping detecting the signaling of the user equipment on the first link when detecting that the first link is disconnected; or

Receiving a cell tracking deactivation command sent by the access network element to stop tracking signaling of the user equipment on the first link.

An access network element, wherein the access network element includes: a receiving module, a detecting module, a determining module, and a first sending module;

The access network network element according to claim 7, wherein the access network element further comprises: a tracking module, configured to: when the detecting module detects that a user equipment accesses the cell ID Tracking the signaling of the accessed user equipment, and reporting the traced signaling to the signaling collection server;

The access network network element according to claim 8, wherein the access network element further comprises: an interruption module, configured to: upon receiving the cell tracking deactivation sent by the network element management system When the command is executed, the signaling of the accessed user equipment is stopped;

a second sending module, configured to: when receiving the cell tracking deactivation command sent by the network element management system, forwarding the cell tracking deactivation command to the core network element by using the first link, so that The core network element stops tracking the signaling of the user equipment on the first link.

The access network network element according to claim 8, wherein the access network element further comprises: a first detecting module, configured to detect whether the accessed user equipment has a cell handover, when Detecting that the accessed user equipment performs cell handover, and stops tracking signaling of the accessed user equipment; or

A core network element, wherein the core network element includes: a receiving module and a tracking module; the receiving module is configured to receive a cell tracking command sent by an access network element, the cell The tracking command includes information about the first link established by the user equipment in the cell;

The tracking module is configured to track signaling of the user equipment on the first link.

The core network element of claim 11, wherein the core network element further comprises: a first detecting module, configured to detect whether a user equipment of the first link is a cell handover, Detecting that the user equipment on the first link performs cell handover, and stops tracking the signaling of the user equipment on the first link; or

And a stopping module, configured to receive a cell tracking deactivation command sent by the access network element, and stop tracking signaling of the user equipment on the first link.

A system for tracking a cell, characterized in that the system comprises an access network element according to any one of claims 7 to 10 and a core network element according to claim 11 or 12.