CN100366115C - Method for tracking user equipment access process - Google Patents

Abstract

The present invention discloses a method for tracking the access process of user equipment. The present invention comprises the steps that the context identification of the communication is allocated in advance according to the identity identification of users, a base station tracks a single user according to the context identification of the communication, the tracking identification of the user needing tracking is set, and the base station carries out the first distribution control according to the tracking identification of the user; when the base station receives the request of building a wireless chain circuit from the user, the base station carries out the second distribution control according to the tracking identification of the user; the base station reports the tracking information. The present invention obtains complete data of the user equipment, and simultaneously avoids the influence on other user equipment, and the report of lots of invalid data can be avoided, which is convenient for analyzing the data and quickly positioning system faults.

Description

Method for tracking user equipment access process

technical field

The invention relates to the field of wireless communication, in particular to a method for tracking the access process of user equipment.

Background technique

The Wideband Code Division Multiple Access (WCDMA) system is a relatively complex system, so it is necessary to put forward higher requirements for the testability of the system during system design, so as to quickly locate system faults in actual communication, so that the entire The system has gradually become stable and reliable, providing high-quality communication services for the majority of users.

In order to accurately locate system faults, it is usually necessary to observe the core network and the access network relatively independently, and the base station (Node B) in the access network tracks the access process of the user equipment, and then locates the fault. The existing solution for Node B to track the user equipment access process for positioning is: the operator respectively starts the Iub port signaling tracking, inter-module message tracking and data plane information tracking processes in the operation and maintenance center (OMC), and obtains information in a certain segment. All related information in the NodeB triggered by all access user equipments (UEs) within the time period, and the obtained Iub interface signaling, inter-module messages and data plane information are analyzed respectively.

The disadvantages of the above-mentioned existing method for tracking the access process of the user equipment are as follows:

First of all, because there is no distinction between users, when it is necessary to obtain all the information of each user's initial establishment process, Node B will report all relevant information in Node B triggered by all access user equipment in the establishment process. On the commercial network, When the number of users is large, the information obtained is dozens or even hundreds of times that of a UE, which will lead to data congestion, thereby losing possible useful information, and making it very difficult to identify the trajectory of a UE.

Secondly, since there are many modules and contents involved in the data surface information tracking, it is very likely that many modules do not get tracking instructions due to the fact that the operator sends few commands, resulting in incomplete data.

In addition, since the output formats of Iub port signaling, inter-module messages, and data surface information are different, it is very difficult to use data analysis tools for centralized processing, because this requires tools to first unify various data formats , and then analyze it, so that the operation is complicated when using the data analysis tool, which leads to low analysis efficiency; and the internal functions of the data analysis tool are associated with all these different types of data formats, which leads to the further development of the data analysis tool Difficulty improving. Since there is no unified time information attached to the data output, the time information of each data surface information is inconsistent during the analysis process, which greatly affects fault location.

Contents of the invention

The technical problem solved by the present invention is to provide a method for tracking the access process of the user equipment which is convenient for quickly locating system faults.

In order to solve the above problems, the technical solution of the present invention is to provide a method for tracking the access process of user equipment, including steps:

1) Pre-allocating the communication context identifier according to the identity identifier of the user equipment;

2), the base station carries out single-user tracking according to the communication context identifier, which specifically includes the following steps:

121), setting the user tracking identification required to be tracked;

122), the base station sends the received user tracking identifier to a single user tracking control module; the single user tracking control module determines the user identifier of the user equipment to be tracked according to the user tracking identifier;

123), when the base station receives a user's wireless link establishment request, the single user tracking control module configures user resources according to the user tracking identifier, and notifies the tracked module to track;

124). The base station reports a tracking message.

Preferably, the communication context identifier includes a radio network controller communication context identifier or a base station communication context identifier.

Preferably, the user tracking identifier includes a communication context identifier and/or a tracking type.

Preferably, the step 121) includes setting different communication context identifiers or fixed communication context identifiers.

Preferably, the single-user tracking control module determines that the user identification of the user equipment that needs to be tracked specifically includes:

The single-user tracking control module reports feedback to the operation and maintenance center; if the report fails, return to step 121); if the report is successful, enter step 123).

Preferably, the step 123) specifically includes:

61) The single user tracking control module judges according to the user tracking identifier whether it is a user that needs to be tracked, and whether it is a wireless link establishment resource allocation request; if not, then go to step 68); if yes, then go to step 62) ;

62) The single-user tracking control module sets the tracking flag bit of the single-user tracking control module;

63) The single user tracking control module allocates resources for users;

64) The single-user tracking control module sets a tracking flag for the allocated resource module;

65) The single user tracking control module sends resource information and tracking information to the tracked module;

66) The tracked module judges according to the tracking information whether it is a user that needs to be tracked, and whether it is a wireless link establishment request; if not, go to step 68); if yes, go to step 67);

67) The tracked module sets the track flag of the tracked module;

68) Establish a wireless link.

Preferably, step 124) specifically includes:

71) The tracked module reports a tracking message to the single-user tracking control module;

72) The single-user tracking control module reports tracking information to the operation and maintenance center.

Preferably, the reported tracking messages have the same message structure.

Preferably, in step 72), time information is added to the reported tracking message.

Preferably, when the wireless link is deleted, the steps are also included:

101), single user tracking control module clears the user tracking sign of this module;

102), the tracked module clears the user tracking flag of this module.

Preferably, when the operation and operation center loses contact with the base station during the tracking process, further steps are included:

111) The single user tracking control module clears the tracking flags of all tracked users;

112) The single user tracking control module notifies the tracked module;

113) The tracked module clears the tracking flags of all tracked users, and stops reporting of all tracking messages.

Compared with prior art, the beneficial effect of the present invention is:

First of all, since the present invention pre-specifies the communication context identifier to be allocated according to the user's identity identifier, the Node B performs single-user tracking according to the communication context identifier, avoiding the influence of other users while obtaining data, and avoiding the occurrence of a large amount of invalid data. Reporting, so that the obtained data is highly targeted, thereby improving the effectiveness of the obtained data, facilitating the analysis of the data, speeding up the speed of fault location, and accelerating the stability of the entire system.

Secondly, in the single-user tracking of the present invention, the Node B starts tracking from the UE establishing a wireless link, and can obtain all related Iub port-related signaling of the UE, related messages between internal modules, and a large amount of statistical information on the data plane and data frame information, and then obtain all the complete data of a certain UE in the Node B.

In addition, the present invention specifies the message type for data reporting when tracking is started, and uses a common message structure when each module reports a message. Therefore, in the process of data analysis, the unified information tracked by a single user can be obtained according to the common message structure header, and different analysis and processing can be performed according to different message types. Due to the uniform output format of various data, valuable clues can be obtained by analyzing the obtained single-user tracking information with tools during analysis, without first unifying various data formats and then analyzing them. Greatly speed up fault location and speed up the stability of the entire system.

Description of drawings

FIG. 1 is a schematic flow chart of a method for tracking user equipment access process according to a specific embodiment of the present invention;

Fig. 2 is a schematic diagram of the overall process of single-user tracking in a specific embodiment of the present invention;

Fig. 3 is a schematic diagram of the first deployment and control method in the single user tracking process of a specific embodiment of the present invention;

Fig. 4 is the second deployment and control flowchart of the single-user tracking control module in the single-user tracking process of a specific embodiment of the present invention;

Fig. 5 is a flow chart of the second deployment and control of the tracked module in the single-user tracking process of a specific embodiment of the present invention;

Fig. 6 is a schematic diagram of reporting a single user tracking message according to a specific embodiment of the present invention;

Fig. 7 is the processing flowchart of the single user tracking control module when the wireless link is deleted according to a specific embodiment of the present invention;

Fig. 8 is the processing schematic diagram of each relevant module when the OMC of a specific embodiment of the present invention and Node B contact are interrupted;

Fig. 9 is a schematic diagram of the OMC input interface tracking user state transition and each state related operation of a specific embodiment of the present invention;

Fig. 10 is a schematic diagram of a display mode of single-user tracking data plane information in a specific embodiment of the present invention;

Fig. 11 is a schematic diagram of a display mode of information on a single-user tracking message surface according to a specific embodiment of the present invention.

Detailed ways

In a telecommunication network, especially in a WCDMA communication system, it is necessary to quickly locate system faults. The present invention obtains complete record information from the surface (the entire user access process) to the point (the output information of a certain module) in the whole system, quickly locates system faults according to the information, and can avoid other UEs during fault location Random access interference, and unified data output to facilitate on-site real-time monitoring and post-event analysis.

Referring to Fig. 1, the method for tracking the user equipment access process of the present invention includes: the radio network controller (RNC) side pre-specifies the communication context identifier to be allocated according to the identity of the UE; User Tracking. The identification includes: Mobile Subscriber Identity (IMSI), Temporary Mobile Subscriber Identity (TMSI) or Packet Temporary Mobile Subscriber Identity (P-TMSI), etc.; the communication context identification includes radio network controller communication Context ID (CRNC ID) or Base Station Communication Context ID (NBCC ID). The following will take CRNC ID as an example to introduce the process of single-user tracking.

See Figure 2 for the process of single-user tracking. The OMC provides a human-computer interaction interface through which initial settings can be made, and the OMC is also responsible for functions such as information reception, display, and recording. The user tracking identification of the UE that needs to be tracked is specified by the OMC, and the tracking is started. The user tracking identification includes the CRNC ID and the tracking type; Node B performs the first deployment after receiving the user tracking identification of the UE that needs to be tracked by the OMC, that is, it is determined The user identification of the user equipment that needs to be tracked in the single user tracking control module; when the wireless link of the UE is established, the Node B performs the second control, that is, when the base station receives the user's wireless link establishment request, the The single user tracking control module configures user resources according to the user tracking identifier, and notifies the tracked module to track; the tracked UE sends a tracking message from each module, and the Node B collects the tracking message and reports it to the OMC; The received tracking message data is displayed and recorded until the user issues a stop command to end the single-user tracking.

Fig. 3 is a schematic diagram of the first deployment and control method in the single user tracking process of the present invention. Node B sends the user tracking identification that receives from OMC to single user tracking control module, and described user tracking identification includes CRNC ID and tracking type; Single user tracking control module reports feedback simultaneously; If reporting failure feedback, then re-do the first time deployment. Set the CRNC ID on the operation interface to specify the user who needs to be tracked; set the tracking type options (such as: Iub port signaling, inter-module signaling, data plane control information, data plane information, etc.), to customize the required data to avoid reporting a large amount of invalid data. For example: if the trace type option is Iub port signaling, it refers to reporting Iub port signaling data without reporting other information.

The second deployment and control process performed by Node B includes the second deployment and control process of the single-user tracking control module and the second deployment and control process of the tracked module in the single-user tracking process. The above two deployment and control processes will be described below with reference to FIG. 4 and FIG. 5 .

Refer to FIG. 4 for the second deployment and control process of the single-user tracking control module in the single-user tracking process of the present invention.

The second deployment and control process of the single-user tracking control module includes the following steps:

Step S41, after the wireless link establishment request reaches the single-user tracking control module, the single-user tracking control module judges whether it is a user that needs to be tracked according to the received user tracking identifier, and judges whether it is a wireless link establishment resource allocation request;

If it is a user that needs to be tracked, and it is a wireless link establishment resource allocation request, proceed as follows:

Step S42, the single user tracking control module sets the tracking flag of the user tracking control module;

Step S43, the single-user tracking control module allocates resources for the user; the resource refers to the allocation of required algorithm resources, transmission resources, software module resources and other resources for the user, and each type of resource will have its own tracked module;

Step S44, the single-user tracking control module sets the tracking flag bit for the allocated resource module, and specifies the message to be tracked;

Step S45, the single user tracking control module sends the resource information and tracking information to the tracked module;

In step S45, the resource information is the resource information allocated above, such as the transmission channel ID used by the user, the internal ID of the algorithm module, and the like. The tracking information includes CRNC ID and tracking type, which is used to notify each module that needs to be tracked to report the type of information to avoid reporting a large amount of invalid data.

If the single user tracking control module judges according to the received user tracking ID that it is not a user to be tracked or a wireless link establishment resource allocation request, then directly enter step S53 to establish a wireless link, see FIG. 5 .

Fig. 5 is a flow chart of the second deployment and control of the tracked module in the single-user tracking process of the present invention.

The second control process of the tracked module in the single-user tracking process includes the following steps:

Step S51, when the tracked module receives the resource information and tracking information sent by the single-user tracking control module, the tracked module judges whether it is a user that needs to be tracked according to the tracking information, and judges whether the message is a wireless link establishment request ;

If it is a user that needs to be tracked, and it is a wireless link establishment request, proceed as follows:

Step S52, setting the tracking flag of this module;

Among them, setting the tracking flag of this module is to set the flag bit of this module in the user data structure involved in this module, indicating that the user has been tracked. Another function of the flag bit is to count, so as to ensure that the number of users allowed to be tracked is not exceeded;

Step S53, establishing a wireless link.

If it is not the user to be tracked or the wireless link establishment request message, go to step S53 and directly establish the wireless link.

Referring to Figure 4 and Figure 5, after the wireless link establishment request reaches the single-user tracking control module, the single-user tracking control module determines that the wireless link is the user to be tracked, records it, and sends tracking information to all tracked modules , while deploying and controlling all modules, it is necessary to inform the tracking type and user tracking ID at the same time, so that the tracked module can judge whether to report tracking information and use it for OMC to distinguish objects. After receiving the single-user tracking information sent by the control module, the tracked module judges whether tracking is required, and records the tracking information if necessary.

The following will illustrate how each module reports the tracking message layer by layer during the tracking process.

As shown in Figure 6, each tracked module in Node B reports the content of the tracking message to the single-user tracking module according to the tracking type. The reporting modules on the data plane are different, but for the single-user tracking control module, there is no need to distinguish, and the time information is added and forwarded to the OMC.

The message content reported by each tracked module to the single-user tracking control module includes: single-user tracking information, specific tracking message types, and specific message content. The message structure here is shown in Table 1:

Table 1 The message structure received by the single-user tracking control module

IE/Group Name Semantics description Message Type Report various tracking result instructions of the tracked user CRNC ID Communication context assigned by RNC wLength Bytes of the trace message abData specific tracking message

The message structure in the table includes Message Type, CRNC ID, wLength and abData, where Message Type is an indication to report various tracking results of the tracked user, which is used to distinguish different types of information, such as user signaling plane and user data Faces have different Message Types; CRNC ID is the communication context assigned by RNC to distinguish users; wLength is the number of bytes of the tracking message; abData carries specific tracking messages, including the specific type of information being tracked. Because for each tracked specific information type, there are different message types for identification. For example, the tracking type of IUB signaling is A, the tracking type of inter-module signaling is B, and the tracking type of data plane message 1 is C ₁ , ..., the trace type of data plane message n is C _n . If the tracking types are information of A, B, and C ₁ , each tracked module only reports information of these types, but does not report information of C ₂ , . . . , C _n . The above-mentioned tracking specific information types are recorded in abData.

When each module reports the tracking message, it will report the message with the message structure shown in Table 1 to the single-user tracking control module, which is convenient for the single-user tracking module to perform unified processing. The single-user tracking control module records the CRNC ID recorded in the message header, and then adds the current time information and other necessary information to form a new message and forward it to OMC. The message content includes: additional information such as time, single user tracking information, specific tracking message type, and specific message content. Its message structure is shown in Table 2:

Table 2 Trace message structure received by OMC

IE/Group Name Semantics description Message Type Report various tracking result instructions of the tracked user Time time information other other relevant information CRNC ID Communication context assigned by RNC wLength Bytes of the trace message abData specific tracking message

It can be seen from the table that, compared with Table 1, the message structure shown in Table 2 adds Time for recording time information and Other for recording other related information. The time information is recorded here because the tracked modules are on different CPUs and DSPs, so the time may not be completely synchronized. In this way, if the time information is recorded by each tracked module itself, there will be a problem of time inconsistency among the tracking information, which will bring great problems to subsequent analysis. Therefore, the present invention uniformly stamps time stamps at the single user tracking control module and records time information to solve the problem of time inconsistency and facilitate subsequent analysis.

In the final OMC analysis process, the analysis module first obtains the unified information of single user tracking according to the common header structure (the above-mentioned Message Type) in the message structure, and then performs different analysis and processing according to different message types behind the message structure.

The whole process of single user tracking is introduced above, and the application of the method of the present invention in single user tracking stop, radio link (RL) establishment, addition, deletion and abnormal flow will be introduced in detail below.

1. Single user tracking stop process

After the control is completed, the operator can issue a stop request. The stop request is divided into two situations: one is that the wireless link of the UE has not been established; the other is that the wireless link of the UE has been established. There are two different processing methods for the two situations: if the single user tracking module detects that the user has not established a call, then directly cancel the first deployment. If the user has successfully established the call, the content of the first arming will still be canceled, and at the same time, stop reporting any tracking information of the UE.

2. Radio link (RL) establishment, addition and deletion process

When the first RL of the tracked UE is established (the wireless link establishment process may also establish multiple wireless links at one time), at this time, the single user tracking module performs second control for each established RL, When the user calls successfully, the single user tracking module sends a "call setup" message to the OMC, and the OMC makes corresponding interface adjustments.

After the user calls successfully, the possible wireless links increase, and the single user tracking module can also perform second control for the newly added wireless links.

The second control method has been introduced earlier, so I won’t go into details here.

When a radio link is deleted, all data planes and signaling message planes belonging to the radio link stop reporting immediately. When the last wireless link belonging to a user is deleted, the single user tracking control module sends a "call release" message to the OMC, and the OMC makes corresponding interface adjustments.

With reference to shown in Figure 7, when the single user tracking control module receives the wireless link deletion order, at first enter step S71, judge whether to delete the last wireless link; If yes, then execute

Step S72, clearing the UE tracking flag in the single user tracking control module;

Step S73, sending a radio link deletion signaling to the corresponding tracked module.

If it is judged in step S71 that the last wireless link is not deleted, then step S73 is directly executed to send a wireless link deletion signaling to the corresponding tracked module.

Each relevant tracked module clears the UE tracking flag of this module and deletes the link after receiving the wireless link deletion command from the single user tracking control module.

3. Abnormal process

The abnormal process mentioned means that OMC loses contact with Node B during the tracking process:

Referring to Figure 8, after the contact between OMC and Node B is interrupted, the single-user tracking control module clears its own tracking information and sends a notification to tracked module 1, tracked module 2 and other related tracked modules, and each tracked module clears all The tracking flag of the UE has been tracked, and the reporting of all tracking messages is stopped.

If the whole process of wireless link tracking needs the support of OMC, you need to set parameters through OMC before tracking and start tracking; during the tracking process, OMC will dynamically display and save the received information in real time; after the tracking process is over, you can still use the OMC will display, store and analyze the collected and reported information.

The state transitions during user tracking and the actions of the OMC in each state are described below in the form of a state diagram, refer to FIG. 9 .

On the OMC operation interface, the user status is initially displayed as "starting tracking...", after the tracking command is issued, the button status becomes "waiting for a call...", when the user calls successfully, it becomes "tracking. ..", when the call is released, it returns to the "Pending call..." state again. After sending "stop tracking" and receiving the stop success message returned by Node B, it returns to the initial state, which is displayed as "start tracking...".

In the initial state, the operator can perform the following initialization operations through the OMC:

1) Set the CRNC ID to be tracked through OMC, and set a comment to indicate the IMSI or mobile phone number corresponding to the CRNC ID. OMC also has the function of viewing, which can display the existing user name, CRNC ID, IMSI or mobile phone number.

2) Set the tracking information option through OMC, you can choose to track Iub port signaling, inter-module signaling, data plane control information and data plane FP information. The recording options in the above aspects can be single-selected or multiple-selected; and the selected result can be saved as a pattern, and a pattern is saved as a separate file for easy sharing; during operation, the saved pattern can be called by reading the pattern mode; all options default to unchecked.

3) When the OMC selects the UE to track, the user can choose whether to save the file for each tracked UE, and whether to display it dynamically. The default is to select all. If you choose to save the file, first specify the file name to save the acquired information, and then specify the user.

After the tracking process and issuing the stop tracking command, the actions of OMC are as follows:

After issuing the "Start Tracking" command, OMC starts to write information into the record file, and at the same time, a relevant dynamic display window pops up to dynamically display relevant information.

In the non-"start tracking" state, you can issue a "stop tracking" command, and Node B will feedback a success or failure message after receiving the stop command; if Node B feedbacks success, OMC will stop the tracking immediately after receiving the stop success response command The file records and closes the dynamic graphic display, and the interface state also changes to the "start tracking" state, and the subsequent tracking information related to the UE is lost immediately; if the Node B feedback fails, the OMC record file and dynamic display will not be affected.

The OMC can analyze and display the received data. In order to facilitate the analysis, the data analysis and display interface of the present invention adopts the method of aligning all data on the time axis, as follows:

1. All information uses the same time axis abscissa. Due to the possibility of a large amount of data, it supports the function of viewing details. You can select a certain part (time period) with the mouse to zoom in and display it. When observing details, it also supports horizontal scroll bars.

2. Combination of graphics in clustering mode. Place a class of graphics together in a clustering manner; at the same time, it supports vertical dragging and dropping of graphics to facilitate adjustment of the order of graphics.

3. Support the vertical enlargement of graphics. Since it is possible to draw multiple pictures, it supports vertical zooming in of graphics, for example, it supports the selection of 2, 4, 8, and 12 pictures in full screen, and the part beyond full screen can support scrolling screen.

4. Support the single-point alignment function of all windows. You can use a vertical line to align all windows. The vertical line appears in all coordinates at the same time. The intersection position of the vertical line and each curve is the value of each indicator at the same time. The vertical line can be moved in a large range by clicking the mouse, or it can be moved left or right with the smallest time resolution by using the left and right keys.

5. Solve the problem of inconsistent time accuracy of each tracking information. The minimum precision is 10ms. If the precision of a variable is less than 10ms, select it by rounding down: for example, when the time is 18ms, select the time point of 10ms.

When analyzing and displaying data, OMC adopts different display methods for different types of data. The information on the data plane and the information on the signaling message plane are displayed on different interfaces, and the two display modes will be introduced one by one below.

Referring to FIG. 10 , it illustrates a display mode of single-user tracking data surface information. For the display of the data surface information, a method of drawing multiple related data surface information in one graph is adopted. Referring to a specific embodiment shown in the figure, the horizontal axis is the time axis, and the vertical axis represents the signal-to-noise ratio, and the range of the vertical axis can be adjusted according to the data, so that the size of the graph is reasonable. If the UE has multiple radio links, the same index data of different radio links are depicted in different curve forms. For example, dotted line 1 in the figure represents wireless link 1 and index 1; solid line 2 represents wireless link 2 and index 1; dotted line 3 represents wireless link 1 and index 2; solid line 4 represents wireless link 2 and index 2.

Figure 11 shows the display mode of single-user tracking message surface data. Iub port signaling and inter-module signaling belong to the display mode of messages, that is, these messages do not appear continuously, but at some discrete time points, once they appear, they are a message with content. In order to establish a temporal relationship between these messages and indicator variable values, they also need the indicator's timeline. When a message appears, a point is recorded on the time axis, indicating that the message occurred at this time, and then all the messages on the entire time axis can be popped up in some way, and displayed using the current message analysis tool, you can view the specific content of each message . And a corresponding relationship can be established between the message and the time axis, for example, double-clicking a certain node can locate the position of its corresponding message in the message parsing window.

Preferably, in the method for tracking the user equipment access process of the present invention, the NBCC ID may be used as the UE's identifier instead of the CRNC ID as the UE's identifier.

Preferably, in the method for tracking the user equipment access process of the present invention, the identifier of the specific UE is not set before each tracking on the Node B side in advance, and the fixed CRNC ID/NBCC ID is used to track, that is, the RNC side reserves part Fixed CRNC ID resources are dedicated to single-user tracking, so that Node B can track as long as it obtains such CRNC ID/NBCC ID.

The above descriptions are only preferred embodiments of the present invention, and do not constitute a limitation to the protection scope of the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (11)

1. A method for tracking user equipment access process, characterized in that, comprising steps: 1) Pre-allocating the communication context identifier according to the identity identifier of the user equipment; 2), the base station carries out single-user tracking according to the communication context identifier, which specifically includes the following steps: 121), setting the user tracking identification required to be tracked; 122), the base station sends the received user tracking identifier to a single user tracking control module; the single user tracking control module determines the user identifier of the user equipment to be tracked according to the user tracking identifier; 123), when the base station receives a user's wireless link establishment request, the single user tracking control module configures user resources according to the user tracking identifier, and notifies the tracked module to track; 124). The base station reports a tracking message. 2. The method for tracking the access process of the user equipment according to claim 1, wherein the communication context identifier includes a radio network controller communication context identifier or a base station communication context identifier. 3. The method for tracking a user equipment access process according to claim 1, wherein the user tracking identifier includes a communication context identifier and/or a tracking type. 4. The method for tracking user equipment access process according to claim 1, characterized in that: said step 121) includes setting a different communication context identifier or a fixed communication context identifier. 5. The method for tracking a user equipment access process according to claim 4, wherein the determination of the user identification of the user equipment to be tracked by the single user tracking control module specifically includes: The single-user tracking control module reports feedback to the operation and maintenance center; if the report fails, return to step 121); if the report is successful, enter step 123). 6. The method for tracking user equipment access process according to claim 5, characterized in that, the step 123) specifically comprises: 61), the single user tracking control module judges according to the user tracking identifier whether it is a user that needs to be tracked, and whether it is a wireless link establishment resource allocation request; if not, then go to step 68); if yes, then go to step 62 ); 62), the single-user tracking control module sets the tracking flag bit of the single-user tracking control module; 63), the single user tracking control module allocates resources for users; 64), the single-user tracking control module sets a tracking flag bit for the allocated resource module; 65), the single user tracking control module sends resource information and tracking information to the tracked module; 66), the tracked module judges according to the tracking information whether it is a user that needs to be tracked, and whether it is a wireless link establishment request; if not, go to step 68); if yes, go to step 67); 67), the tracked module sets the track flag of the tracked module; 68), establish a wireless link. 7. The method for tracking user equipment access process according to claim 1, characterized in that, step 124) specifically comprises: 71) The tracked module reports a tracking message to the single-user tracking control module; 72) The single-user tracking control module reports tracking information to the operation and maintenance center. 8. The method for tracking user equipment access process according to claim 7, characterized in that: the reported tracking messages have the same message structure. 9. The method for tracking user equipment access process according to claim 7, characterized in that: in step 72), time information is added to the reported tracking message. 10. The method for tracking user equipment access process according to claim 1, characterized in that, when the wireless link is deleted, further comprising the steps of: 101), single user tracking control module clears the user tracking sign of this module; 102), the tracked module clears the user tracking flag of this module. 11. The method for tracking user equipment access process according to claim 1, characterized in that, after the operation operation center and the base station are disconnected during the tracking process, further comprising the steps of: 111) The single user tracking control module clears the tracking flags of all tracked users; 112) The single user tracking control module notifies the tracked module; 113) The tracked module clears the tracking flags of all tracked users, and stops reporting of all tracking messages.

Images