CN100396134C - Pseudo-measurement report generation method - Google Patents

Abstract

The invention relates to a performance detection method of a communication system, and discloses a method for generating a false measurement report, so that the ability of the network to handle abnormal situations or artificial forced operation can be detected without modifying the high-level parameters of the network to achieve the trigger condition. This pseudo-measurement report generation method includes the following steps: A. the device generates a pseudo-measurement report template; B. the device sets valid value ranges for each parameter in the pseudo-measurement report template; Value range, generate a complete pseudo-measurement report; D. The user sets the change mode of the pseudo-measurement report; E. The device reports the pseudo-measurement report to the upper entity; F. The device according to the change mode of the pseudo-measurement report set by the user, Generate a pseudo-measurement report, and then enter step E until the change method is executed, and the process ends.

Description

Pseudo-measurement report generation method

technical field

The invention relates to a communication system performance detection and operation execution method, in particular to a false measurement report generation method.

Background technique

In the Universal Mobile Telecommunications System ("UMTS" for short), the User Equipment ("UE" for short) communicates with the UMTS Terrestrial Radio Access Network ("UMTS Terrestrial Radio AccessNetwork" for short) through the Uu interface. UTRAN") to establish a connection, and the UTRAN establishes a connection with the core network (CoreNetwork, referred to as "CN") through the Iu interface (see FIG. 1). Among them, UTRAN is used to complete radio resource management and control, and establish service bearer; CN is used to provide various services applied by UE.

Figure 2 shows the architecture of the UTRAN, which includes multiple Radio Network Sub-systems ("RNS" for short). Among them, each RNS is composed of a radio network controller (Radio Network Controller, referred to as "RNC") and several base stations, namely "NodeB". Each RNC communicates with each other through the Iur interface, and RNC and NodeB communicate with each other through the Iub interface. In addition, as shown in Figure 1, the UE establishes a connection with the NodeB through the Uu interface to enjoy the services provided by the communication system such as voice and data. various businesses. It can be seen from Fig. 1 and Fig. 2 that the base station and UE have a relationship between an upper-layer entity and a lower-layer entity. Similarly, there are also relationships between an upper-layer entity and a lower-layer entity between an RNC and a base station, and between CN and RNC. The upper-layer entity and the lower-layer entity here are relative concepts. For example, in the case of CN and RNC, CN is the upper-layer entity, and RNC is the lower-layer entity; while between RNC and UE, RNC is the upper-layer entity, and UE is the lower-layer entity. entity.

In the above system, measurement is an important process. Measurement includes the understanding of various resource conditions such as pilot received power, uplink and downlink transmit power, etc. It is the main means for each entity in the system, such as UTRAN and UE, to grasp the operation of resources.

We can illustrate the process of measurement through upper-level entities and lower-level entities. The upper-layer entities in the system (for example, RNC or CN) regulate the measurement behavior of the lower-layer entities through measurement configuration according to their own needs for measurement specific content. The low-level entity completes various measurements according to the above-mentioned measurement configuration of the upper-level entity. In addition, the underlying entities will generate measurement reports according to different trigger conditions, such as periodic reports or event reports, and send them to the upper-layer entities. The upper-layer entities will perform various actions based on the measurement reports provided by the underlying entities to effectively manage resources.

For example, when a UE moves from cell A to cell B, as an underlying entity, it measures that the Ec/No (ratio of power density after despreading to interference power density) index of cell B exceeds a predetermined threshold, Therefore, the underlying entity UE will generate a 1E event measurement report based on this situation and send it to its upper entity NodeB, and then the measurement report will be forwarded by NodeB to NodeB's upper entity RNC, telling RNC that the UE now finds that the quality of cell B exceeds the predetermined threshold Yes, this is the meaning of the "1E" event. Therefore, the RNC can judge that the UE has entered the coverage of cell B according to the information in the measurement report, and start to consider whether to handover the UE to cell B because the signal of cell B is better, so as to ensure that the Enjoy continuity of service. It can be seen that the measurement in the system plays a very important role.

In the current communication system, there are two cases of measurement, one is the measurement at the UTRAN, and the other is the measurement at the UE. Taking the measurement at the UTRAN, it mainly refers to the measurement at the NodeB it contains. Specifically, in a measurement at UTRAN, the underlying entity NodeB will perform public measurement or dedicated measurement according to the measurement configuration of its upper entity RNC, and generate a public measurement report or a dedicated measurement report, and send it to the upper entity RNC. In the 3rd Generation Partnership Project (3rd Generation Partnership Project, referred to as "3GPP") agreement, there are regulations on the measurement quantity and measurement process of various measurements, which will not be elaborated here.

Therefore, it can be said that the measurement report is not only an effective way for the system entity to report the current usage status of various resources to the upper layer entity, but also a necessary condition for triggering the upper layer to perform resource management operations.

However, in actual network planning and network performance measurement, it is often necessary to verify the processing capability and operational performance of the system for various possible situations, and these processes are often triggered by measurement reports reported to upper-layer entities. If relying solely on actual physical measurements, it is difficult to meet the conditions for triggering measurement reports. For example, many event reports specified in the protocol are for system abnormalities, and it is impossible to trigger reporting in a normal network. Therefore, when measurement reports are required to trigger In the case of a normal network, it is impossible to test the ability of the network to handle abnormal situations.

In addition, in actual network planning, sometimes it is necessary to prohibit certain operations on the network. For example, when detecting the maximum coverage of data services, the most intuitive detection method is to use a mobile phone or a drive test device to enable this service. When moving towards the edge of coverage, the place where the call is dropped is the maximum coverage area of the data service of the base station, and the network must be prohibited from switching users to other cells during the process.

In addition, measurement reports sometimes cause other problems. For example, in some locations, it is impossible for the UE to manually initiate a forced handover, because the handover must be decided by the upper-layer entity RNC based on the measurement report of the lower-layer entity UE. The actual measurement report of the UE cannot meet the conditions of the measurement report required to trigger the handover, thus making it impossible to realize the forced handover, which brings difficulties to the management and operation of the system.

In view of the current situation that all devices report measurement reports according to actual measurement results, in order to solve the above problems in the prior art, the method of changing the high-level parameters of the network to extreme values or using an algorithm switch is generally adopted.

In practical application, there are many problems in this approach:

First of all, the method of setting high-level parameters to extreme values cannot meet some special requirements, and cannot fully verify the fault tolerance and robustness of the network.

Secondly, because high-level parameters and algorithm switches are valid for all devices, modifying high-level parameters or switching a certain algorithm has too much impact. Once modified for testing, the impact will be very wide.

Third, the devices on each layer of the wireless network may come from different manufacturers. Once the device manufacturer does not provide a way to modify the high-level parameters or an algorithm switch interface, it is impossible to modify them, resulting in the impossibility of modifying the high-level parameters or using the algorithm switch. Meet the needs.

Contents of the invention

The technical problem to be solved by the present invention is to provide a method for generating a pseudo-measurement report, so that the trigger condition can be detected without modifying the high-level parameters of the network, and the abnormal situation of the network processing can be detected or artificial forced operation can be performed.

In order to solve the above-mentioned technical problems, the present invention provides a method for generating a false measurement report, comprising the following steps:

A device generates a pseudo-measurement report template;

The B device sets an effective value range for each parameter in the pseudo-measurement report template;

The C user generates a complete pseudo-measurement report according to the effective value range of each parameter;

The D user sets the change mode of the pseudo-measurement report;

The E device reports the pseudo-measurement report to the upper-layer entity;

The F device generates a pseudo-measurement report according to the change mode of the pseudo-measurement report set by the user, and then enters step E until the change mode is executed, and the process ends.

Wherein, said step B also includes the following steps:

The device fills in the necessary parameters with default values in the dummy measurement report template.

The required parameter with a default value is the event type of the pseudo measurement report.

In the step D, the user sets the change mode of the pseudo-measurement report as setting the value of a parameter in the pseudo-measurement report to be changed by a numerical value from the value in the previous pseudo-measurement report.

The changing value is a constant or a value calculated according to a specified formula.

In the step D, the user sets the change mode of the false measurement report to continuously report the false measurement report, where the reporting interval is a constant.

In the step D, the user sets the change mode of the false measurement report to continuously report the false measurement report, wherein the number of reported false measurement reports is a constant.

Another pseudo-measurement report generation method provided by the present invention comprises the following steps:

A device generates the actual measurement report;

The B device judges whether the actual measurement report meets the replacement range and replacement conditions preset by the user, if yes, then enters step D, if not, then enters step C;

The C device reports the actual measurement report to the upper entity, and the process ends;

The D device replaces the value of one or some parameters in the actual measurement report with a pre-specified value according to the replacement method preset by the user, and replaces the actual measurement report with a pseudo-measurement report;

The E device reports the generated pseudo measurement report to the upper layer entity.

Wherein, the step D further includes the following steps: the device determines whether the measurement report needs to be intercepted according to the replacement mode preset by the user, if yes, the measurement report is not reported, and the process ends; The replacement mode of the setting, replace the actual measurement report with the fake measurement report.

Through comparison, it can be found that the difference between the technical solution of the present invention and the prior art is that the device itself generates a pseudo-measurement report template and sets the effective value range of each parameter to ensure the validity of the pseudo-measurement report generated by the user. The device automatically generates other pseudo-measurement reports according to the change mode of the pseudo-measurement report set by the user, and reports them to the upper-layer entity, so that the upper-layer entity obtains a measurement report that can trigger system operations. In another method of the present invention, the device first generates an actual measurement report, and judges whether the measurement report meets the preset replacement range and replacement conditions. When the range and conditions are met, according to the preset replacement method, the The actual measurement report is replaced with a fake measurement report, and reported to the upper-layer entity, so that the upper-layer entity obtains a measurement report that can trigger system operations.

Based on the difference between the above and the existing technology, the pseudo measurement report generated according to the change method of the pseudo measurement report, or the pseudo measurement report replaced according to the preset replacement method has solved the problem that the previous measurement report can only report the actual measurement value. , so that it is no longer necessary to modify the high-level parameters of the network to achieve the trigger condition, and it is also possible to detect the ability of the network to handle abnormal situations or perform artificial mandatory operations.

Description of drawings

Figure 1 is a schematic diagram of the main components in UMTS;

Fig. 2 is a schematic diagram of the architecture of UTRAN;

FIG. 3 is a flowchart of a method for generating a pseudo-measurement report according to an embodiment of the present invention;

Fig. 4 is a flowchart of a method for generating a pseudo-measurement report according to another embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

Fig. 3 shows a flowchart of a method for generating a pseudo-measurement report according to an embodiment of the present invention. It should be noted that, before generating the pseudo-measurement report, the user first starts the generation of the pseudo-measurement report and selects a mode for creating a new report. After that, it enters the formal pseudo-measurement report generation process.

As shown in FIG. 3 , step 100: the device generates a pseudo-measurement report template.

Specifically, the device generates a pseudo-measurement report template according to various measurement requirements pre-configured by the upper-layer entity when the system is established. For example, when a mobile phone moves from one cell to another and needs to be handed over, the system needs the mobile phone to measure the pilot signal strength of the base station of the new cell to determine whether the mobile phone has entered the coverage of the new cell; When knowing the downlink load of the base station, the RNC needs the data of measuring the total downlink transmit power.

Step 200: The device sets valid value ranges for each parameter in the pseudo-measurement report template.

The device sets valid value ranges for each parameter in the pseudo-measurement report template generated in step 100 according to its own actual limitations, ie, its own measurement capabilities, and current actual resource usage. For example, for the above-mentioned handover, the device needs to set an effective value range for the parameter "RSCP" (Received Signal Code Power, received channel code power).

In this step, the device also fills in necessary parameters such as event type with default values. The so-called necessary parameters with default values refer to the necessary parameters that do not have to be filled in according to the actual measurement value, and the necessary parameters refer to the parameters that must be filled in the pseudo-measurement report, otherwise the legality of the pseudo-measurement report cannot be guaranteed. That is, the necessary parameters with default values are the necessary parameters to make the fake measurement report into a legitimate measurement report.

Step 300: The user generates a complete pseudo-measurement report according to the valid value range of each parameter.

That is, the user fills in blank necessary parameters, and the filled values are within the valid value range set by the device, thereby ensuring the validity of the pseudo-measurement report. In addition, in the pseudo-measurement report, some parameters do not need to be filled in, that is, non-essential parameters. For example, in the 1E measurement report required for handover, the "additional measurement result" is an optional parameter. If it is not measured, it is not necessary to fill in , if not filled in, it will not affect the generation of the entire report. From this device a complete pseudo-measurement report is generated.

Step 400: The user sets the change mode of the pseudo-measurement report.

Specifically, the user sets the change mode according to his own needs, so as to ensure that the pseudo-measurement report can be sent correctly and as required. The reason for this is that there is not necessarily only one false measurement report. For example, when a cell handover is required, in some cases the network requires the device to report several consecutive measurement reports, and judge whether to perform handover based on the change trend of the physical quantities in the several measurement reports. Moreover, in this case, the intervals between the sending of individual measurement reports may be very small. By setting the change mode, the device can automatically and continuously generate pseudo-measurement reports that meet the requirements. There are many ways to change, for example: set the value change mode of a certain parameter in the pseudo-measurement report to change a value from the value in the previous pseudo-measurement report, this change can be increased or decreased, and The changed value can be a constant, or a value calculated according to a specified formula; in the case where multiple pseudo-measurement reports are required, the reporting interval period is every 200ms, or other constants; or set at an interval of 200ms , continuously report two pseudo-measurement reports and so on.

Step 500: The device reports the pseudo measurement report to an upper layer entity.

Step 600: The device generates the next pseudo-measurement report according to the change mode of the pseudo-measurement report set by the user, and then returns to step 500, that is, reports the new pseudo-measurement report to the upper-layer entity. This process does not end until the change mode is executed.

That is to say, the device modifies the corresponding parameters in the pseudo-measurement report according to the change mode set by the user, thereby generating a new pseudo-measurement report, and reports the new pseudo-measurement report to the upper-layer entity until the user's change mode is executed , the whole process ends.

Afterwards, the upper-layer entity will perform various operations to effectively manage system resources according to the received pseudo-measurement report.

In the above embodiments, the user selects the mode of creating a new report. In the following embodiments, we will describe in detail the process of generating a fake measurement report when the user chooses to replace the existing measurement report mode.

Before generating the pseudo-measurement report, the user will first start the generation of the pseudo-measurement report and select the mode of replacing the existing report. And the user pre-sets the replacement range and replacement conditions of the measurement report according to the needs. Specifically, the replacement range refers to the range of the measurement report to be replaced. For example, if the user sets the replacement range to the measurement report of the 1E event, it means 1E The measurement report of the event will be replaced; the replacement condition refers to which conditions the parameters in the measurement report that the device is going to report to the upper-layer entity meet to be replaced. For example, the user sets the replacement condition to the cell scrambling code number in the 1E event report equal to 66, in which case the measurement report will be replaced.

In addition, the user also presets the replacement mode of the measurement report according to the needs. This method is used to determine which replacement method the device uses. For example, the user can set the replacement method to replace all the cell RSCP values with the cell scrambling code number equal to 66 in the measurement report of the 1E event with -115dBm.

After the user pre-sets the replacement range, replacement conditions, and replacement method, the pseudo measurement report generation process starts.

As shown in Fig. 4, step 10: the device generates an actual measurement report.

In this step, the equipment generates an actual measurement report through actual measurement, so all parameters are actual values.

Step 20: The device judges whether the actual measurement report satisfies the replacement range and replacement conditions preset by the user, and if yes, proceeds to step 40, and if not, proceeds to step 30.

In this embodiment, if the replacement range preset by the user is the measurement report of the 1E event, and the actual measurement report is the measurement report of the 1B event, then the replacement range is not satisfied, and step 30 is entered. On the other hand, when the replacement range is satisfied condition, if the replacement condition preset by the user is that the cell scrambling code number in the 1E event report is equal to 66, but the cell scrambling code number in the actual measurement report is equal to 60, the replacement range is not satisfied, and proceed to step 30. Only when the actual measurement report is a 1E event measurement report and the cell scrambling code number in the actual measurement report is equal to 66, the device side determines that the actual measurement report meets the replacement range and replacement conditions preset by the user, and enters step 40.

Step 30: the device reports the actual measurement report to the upper layer entity.

In this step, since the device determines that the actual measurement report does not meet the replacement range and replacement conditions preset by the user in step 20, the actual measurement report is not modified and is reported to the upper-layer entity intact, thus the process ends.

Step 40: The device replaces the actual measurement report with the pseudo measurement report according to the replacement mode preset by the user.

In this step, since the device judges in step 20 that the actual measurement report satisfies the replacement range and replacement conditions preset by the user, the device replaces the actual measurement report with the dummy measurement report according to the replacement method preset by the user. That is, the value of one or some parameters in the measurement report to be replaced is replaced with a pre-specified value. For example, for the actual measurement report of the 1E event, all RSCP values of cells whose cell scrambling code numbers are equal to 66 are replaced with -115dbm. In this way, the handover of the mobile phone to the cell with the scrambling code number 66 can be prohibited. In the engineering application of actual network planning, after the handover of the mobile phone is prohibited, the farthest coverage of the cell to which the mobile phone was originally connected can be known from the dropped call location of the mobile phone. distance.

In this step, if necessary, the device can also determine whether the measurement report needs to be intercepted according to the replacement mode preset by the user. If yes, the measurement report will not be reported, and the process ends; The replacement mode of the setting, replace the actual measurement report with the fake measurement report.

Step 50: The device reports the generated pseudo-measurement report to the upper-layer entity, and the process ends.

Thereafter, after the upper-layer entity receives the actual measurement report reported by the device in step 30, or the pseudo-measurement report reported by the device in step 50, it will perform various operations according to the physical quantity status in the report to effectively manage resources.

It should be pointed out that the difference between replacing an existing report and creating a new report is that the former will only take effect when the actual measurement report is actually triggered. It just replaces the original measurement report with a fake measurement report, so its trigger conditions are subject to the device The actual measurement and the constraints of the specific environment of the network. The latter, however, can create a new report according to the user's needs, which has nothing to do with the actual measurement of the device and the specific environment of the network.

Although the present invention has been illustrated and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein, and without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (9)

1. a pseudo-measurement report generation method is characterized in that, comprises following steps:

A equipment generates pseudo-measurement report template;

B equipment is that each parameter in the described pseudo-measurement report template is provided with effective span;

C user generates complete pseudo-measurement report according to effective span of described each parameter;

D user is provided with the variation pattern of described pseudo-measurement report;

E equipment reports described pseudo-measurement report to upper layer entity;

F equipment generates pseudo-measurement report according to the pseudo-measurement report variation pattern that described user is provided with, and enters step e then, and until described variation pattern is finished, process finishes.

2. pseudo-measurement report generation method according to claim 1 is characterized in that described step B also comprises following steps:

Equipment is filled in the call parameter with default value in pseudo-measurement report template.

3. pseudo-measurement report generation method according to claim 2 is characterized in that described call parameter with default value is the event type of described pseudo-measurement report.

4. pseudo-measurement report generation method according to claim 1, it is characterized in that, in described step D, the value that the variation pattern of the pseudo-measurement report of described user is set to a parameter in the pseudo-measurement report is set to change a numerical value than the value in the previous pseudo-measurement report.

5. pseudo-measurement report generation method according to claim 4 is characterized in that, the numerical value of described variation is a constant or the value of calculating gained according to the appointment formula.

6. pseudo-measurement report generation method according to claim 1 is characterized in that, in described step D, it is a constant that the variation pattern of the pseudo-measurement report of described user is set to continue to report pseudo-measurement report, the gap periods that wherein reports.

7. pseudo-measurement report generation method according to claim 1 is characterized in that, in described step D, it is a constant that the variation pattern of the pseudo-measurement report of described user is set to continue to report pseudo-measurement report, the number of the pseudo-measurement report that wherein reports.

8. a pseudo-measurement report generation method is characterized in that, comprises following steps:

A equipment generates the actual measurement report;

B equipment judges whether described actual measurement report satisfies replacement scope and the replacement condition that the user sets in advance, if, then enter step D, if not, then enter step C;

C equipment is given upper layer entity with described actual measurement report reporting, and process finishes;

The substitute mode that D equipment sets in advance according to the user replaces to preassigned value with the value of certain or some parameter in the actual measurement report, and the actual measurement report is replaced to pseudo-measurement report;

The described pseudo-measurement report that E equipment will generate reports upper layer entity.

9. pseudo-measurement report generation method according to claim 8 is characterized in that described step D also comprises following steps: the substitute mode that described equipment sets in advance according to the user, whether judge needs to hold back measurement report, if, reporting measurement reports not then, process finishes; If not, the substitute mode that described equipment sets in advance according to the user replaces to pseudo-measurement report with the actual measurement report.

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