WO2012000387A1

WO2012000387A1 - Method, apparatus and system for optimizing network access performance

Info

Publication number: WO2012000387A1
Application number: PCT/CN2011/075822
Authority: WO
Inventors: 张正贤
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-06-29
Filing date: 2011-06-16
Publication date: 2012-01-05
Also published as: CN101877872A

Abstract

A method, an apparatus and a system for optimizing network access performance, used for improving the efficiency of network optimization, and performing network optimization precisely and effectively, are disclosed in the present invention. The method includes: generating a call detail tracking record, which is used for recording detail information of the entire call flow, for a received call trigger message, wherein, the call detail tracking record includes a call factor code at least; acquiring the call detail tracking record after the call is released; judging whether the call is accessed successfully according to the call factor code in the call detail tracking record; counting the access failure rate of the network based on the judgment result; evaluating the network access performance according to the access failure rate; and selecting, according to the evaluation result, a corresponding reference optimization solution to optimize the network. In this way, the network evaluation automation can be realized, the precise and effective network optimization can be self-performed, and the system maintenance cost can be reduced. An apparatus for optimizing network access performance and a system for optimizing network access performance are disclosed in the present invention at the same time.

Description

Method, device and system for optimizing network performance

The present invention relates to the field of communications, and in particular, to a method, apparatus, and system for optimizing network access performance. Background technique

When the user terminal presses the call button to call a phone number, the call is initiated, and the mobile station sends a call message to the base station. Figure 1 shows the call setup process between the base station and the mobile station (in the case of the caller, the called is similar). After the user terminal enters the phone number and presses the call button, the mobile station sends a call message and then waits for the base station. The response message, and after receiving the extended channel assignment message sent by the base station, is transferred to the corresponding traffic channel according to the indication of the extended channel assignment message, and after identifying the forward traffic channel Sending a reverse traffic channel prefix to the base station; after receiving the reverse traffic channel prefix, that is, after capturing the mobile station, the base station sends a handshake confirmation message to the mobile station, and after the handshake is successful, sends a service negotiation message to the mobile station, and the service negotiation succeeds. After that, the call is successfully established. After the mobile station sends the caller message, the key points for completing the call service connection include:

After receiving the origination message sent by the mobile station, the base station sends a confirmation message of the call confirmation to the mobile station through the paging channel;

The base station allocates a traffic channel to the mobile station, and after the service channel is allocated, sends a traffic channel assignment message to the mobile station on the paging channel;

Capture, the base station receives the reverse traffic channel prefix sent by the mobile station, and the reverse traffic channel prefix is that after the mobile station accepts the traffic channel assignment message of the base station, the mobile station identifies the forward direction according to the indication of the channel assignment message. a traffic channel, and after identifying the forward traffic channel, transmitting a reverse traffic channel prefix to the base station; Handshake, the base station receives the reverse traffic channel prefix sent by the mobile station, and after the capture succeeds, sends a handshake confirmation message to the mobile station, and instructs the mobile station to respond to the handshake confirmation message after receiving, the handshake is successful;

After the service negotiation, the base station receives the handshake confirmation message that the mobile station responds, and sends a service negotiation message to the mobile station. After the service negotiation succeeds, the call is successfully established.

If a connection cannot be established between the calling party and the called party within the specified time, it is called a call access failure. It is an important goal of network optimization to reduce the call access failure rate as much as possible and optimize network access performance. At present, the basic method of network optimization is to analyze the data according to the test, and then adjust the network parameters according to the analysis result. In mobile communication networks, the time and place of call access failure is random, which makes it difficult to optimize the test data for the network. For example, traditional road test can measure and collect parameters such as access success rate, air interface signaling, etc. along specific lines by means of instruments such as meters, test mobile stations, and test vehicles, and according to the collected signaling pairs. Manual analysis and diagnosis of failed access cases. However, the time and location of the road test are limited, and the access performance of the entire network cannot be fully and accurately evaluated and diagnosed, so that it is difficult to provide sufficient data support for network optimization and affect the network optimization effect. The traditional dial test uses two test mobile stations to slowly move or fix the point, and the caller and the called party respectively test the access success rate. The above-mentioned limitations similar to the road test also exist.

In summary, it is necessary to find a method for optimizing network access performance, which can improve the efficiency of network optimization and optimize the network accurately and efficiently. Summary of the invention

The present invention provides a method, apparatus and system for optimizing network access performance, which is used to automate network evaluation, improve network optimization efficiency, and optimize network more accurately and efficiently.

The specific technical solutions provided by the embodiments of the present invention are as follows:

A method for optimizing network access performance, including: Receiving a call trigger message sent by the mobile station, and generating a call detailed tracking record for the call trigger message, where the call detailed trace record is used to record detailed information of the entire call flow, where the call detailed trace record includes at least a call reason code;

After the call is released, obtaining the detailed tracking record of the call;

Determining whether the current call is successfully accessed according to the call reason code in the detailed tracking record of the call, and counting the access failure rate of the network based on the judgment result;

The network access performance is evaluated according to the access failure rate of the network, and the network optimization scheme is selected according to the evaluation result to optimize the network.

A device for optimizing network access performance, comprising:

a first processing unit, configured to receive a call trigger message sent by the mobile station, and generate a call detailed tracking record for the call trigger message, where the call detailed tracking record is used to record detailed information of the entire call flow, and the call detailed tracking record At least include the call reason code;

a second processing unit, configured to acquire the detailed call record of the call when the call is released, and a third processing unit, configured to determine, according to the call reason code in the detailed record of the call, whether the call is successfully accessed, And calculating the access failure rate of the network based on the judgment result;

The fourth processing unit is configured to evaluate the access performance of the network according to the access failure rate of the network, and select a corresponding network optimization reference solution to optimize the network according to the evaluation result.

A system for optimizing network access performance, including:

a mobile station, configured to send a call trigger message to the base station;

And a device for optimizing network access performance, configured to receive a call trigger message sent by the mobile station, and generate a call detailed tracking record for the call trigger message, where the call detailed tracking record is used to record detailed information of the entire call flow, the call The detailed tracking record includes at least a call reason code. After the call is released, the call detailed tracking record is obtained, and the call reason code in the detailed tracking record of the call is used to determine whether the call is successfully accessed, and based on the judgment result. The access failure rate of the network is evaluated, and the access performance of the network is evaluated according to the access failure rate of the network, and the network optimization reference scheme is selected according to the evaluation result to optimize the network. Based on the foregoing technical solution, in the embodiment of the present invention, a detailed call tracking record is generated by using the received call trigger message, and detailed information of the entire call flow is recorded, and the call reason code in the detailed tracking record of the call is used as Instructing the result of the call access and the indication of the cause of the call access, after the call is released, obtaining the detailed tracking record of the call, and obtaining the result information of the call access according to the call reason code therein, and counting the network according to the result information The access failure rate is used as an indicator for evaluating network access performance, and the access performance of the network is evaluated, and then the network optimization reference scheme is selected according to the evaluation result to optimize the network. In summary, through the above technical solutions, the network evaluation is automated, and the network can automatically perform accurate and effective performance optimization based on historical operation information, which reduces system maintenance costs and improves network optimization efficiency. DRAWINGS

1 is a schematic diagram of a call setup process between a base station and a mobile station;

2 is a system architecture diagram of optimizing network access performance according to an embodiment of the present invention;

3 is a structural diagram of an apparatus for optimizing network access performance according to an embodiment of the present invention;

FIG. 4 is a flowchart of optimizing network access performance according to an embodiment of the present invention. detailed description

In the mobile communication network, the network optimization performance is improved, and the network access performance is optimized more accurately and efficiently. In the embodiment of the present invention, a method for optimizing network access performance is provided, and the network can be implemented. Automize the evaluation, improve the efficiency of network optimization, and optimize the network more accurately and efficiently. The method is as follows: Pre-establish the correspondence between the call reason code and the access fault cause, and trigger the message generation for each received call. Corresponding call detailed tracking record, obtain the detailed tracking record of the call after the call is released, determine whether the call access is successful according to the call reason code in the detailed tracking record of the call, and determine that the call access fails, according to Call the call reason code in the detailed trace record to determine the corresponding call The cause of the access failure of the reason code and the provided network optimization reference scheme. Finally, the number of access times, the number of access failures, the number of access failures corresponding to various access faults, and the access failures of the target cell accessed by the call are counted. Information such as rate, used to assess the access performance of the network, and optimize the access performance of the network. The call trigger message is a start message or a page response message.

In order to implement the foregoing technical solution, it is first necessary to classify the access failure reason according to the result of statistically reporting the frequently occurring call access failure or according to the possibility of occurrence of the failure in the call access process, and classify the call reason code. Corresponding to the access fault cause category, the call cause code and the access fault cause are formed, and the call reason code is used to indicate whether the call access is successful, and is used to indicate that the call access fault occurs when the call access fails. The reason, at the same time, can also provide a network-optimized reference scheme for each type of access failure cause.

For example, as shown in Table 1, in the CDMA2000 mobile communication network, the cause of the access failure is classified according to the statistical result of the call access failure in the mobile communication network, and the categories are: poor wireless environment, insufficient resources, base station failure, and The terminal service option is incorrect. The difference in the wireless environment means that after the base station receives the call trigger message sent by the mobile station, in the process of establishing a call connection between the base station and the mobile station, the signal of the other party cannot be correctly received due to signal fading and noise interference, thereby causing the mobile station to Call access failure; insufficient resources means that after receiving the access request from the mobile station, the base station or the cell cannot allocate corresponding resources for the access request, thereby causing the call access of the mobile station to fail; The base station fails to work normally due to incorrect parameter setting of the base station or the transmission between the devices, which further causes the call access of the mobile station to fail. The terminal service option is incorrect, because the service item of the user terminal does not match the base station. Call access failed due to other reasons. Among them, refer to Table 1. The call reason code corresponding to the wireless environment difference is 11 or 12. The reference scheme that can be provided for network optimization for this fault is to add stations or adjust the antenna azimuth, tilt angle and other radio frequency optimization; The call reason code is 22, and the network optimization reference scheme provided for the cause of the fault is to optimize the resource configuration of the relevant cell and the base station; the call reason code corresponding to the base station fault is 33, and the network optimization reference scheme provided for the cause of the fault is to view the relevant base station. And the abnormal alarm or parameter configuration of the cell; terminal service selection The call reason code corresponding to the item error is 44. The reason for the access failure is independent of the network system. The reference scheme provided for this access fault is the unique identification information based on the user terminal (IMSI, International Mobile Station Identity). Target the user terminal.

Table 1

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

Referring to FIG. 2, in the embodiment of the present invention, a system for optimizing network access performance mainly includes a mobile station 20 and a device 21 for optimizing network access performance, where

a mobile station 20, configured to send a call trigger message to the base station;

The call trigger message is a start message or a page response message, and the mobile station acts as a caller to send a start message to the base station according to the operation instruction of the user, or sends a page response message to the base station as the called party.

The device 21 for optimizing network access performance is configured to receive a call trigger message sent by the mobile station 20, and generate a call detailed tracking record for the call trigger message. The detailed call record of the call is used to record detailed information of the entire call flow, and the detailed call record of the call includes at least a call reason code, and after the call is released, the detailed record of the call is obtained, and the detailed record is recorded according to the call. Call reason code, determine whether the call is successfully accessed, and count the access failure rate of the network based on the judgment result, evaluate the access performance of the network according to the access failure rate of the network, and select corresponding according to the evaluation result. The network optimization reference scheme optimizes the network.

Referring to FIG. 3, in the embodiment of the present invention, the device 21 for optimizing network access performance mainly includes the following processing units:

The first processing unit 211 is configured to receive a call trigger message sent by the mobile station, and for the call Calling a trigger message to generate a call detailed tracking record, the call detailed tracking record is used to record detailed information of the entire call flow, and the call detailed tracking record includes at least a call reason code;

The second processing unit 212 is configured to acquire the detailed call record of the call when the call is released, and the third processing unit 213 is configured to determine, according to the call reason code in the detailed record of the call, whether the call is successfully received. And determining, according to the judgment result, the access failure rate of the network; the fourth processing unit 214 is configured to evaluate the access performance of the network according to the access failure rate of the network, and select a corresponding network optimization reference according to the evaluation result. The solution optimizes the network.

Based on the foregoing system architecture, as shown in FIG. 4, in the embodiment of the present invention, the base station optimizes the network environment of a cell as an example, and the main steps for optimizing network access performance include: Step 401: The base station receives the call sent by the mobile station. Triggering a message, and generating a call detailed tracking record for the call triggering message, and recording the detailed information of the entire call flow in the call detailed tracking record during the entire call access process, where the information recorded in the detailed tracking record mainly includes the target Cell identification information, unique identification information (IMSI) of the user terminal, pilot signal strength information (Ec/Io) received by the mobile station, call reason code, and the like.

Each time the base station receives a call trigger message, a detailed call record of the call is generated, and the target cell identification number, the unique identifier information (IMSI) of the user terminal, and the mobile station are recorded in the detailed call record of the call according to the call trigger message. The received pilot signal strength and other information, when the call is released, the call reason code is recorded in the call detailed tracking record, which is used to indicate whether the call access is successful, and the call is recorded when the call access fails. The cause of the failure.

For example, when the call access is successful, a zero value is recorded in the call reason code, indicating that the call access is successful; when the call access fails, a non-zero value is recorded in the call reason code, and the non-zero value is used to indicate the call access. The cause of the failure and the network optimization reference scheme for the cause of the failure.

Step 402: After the current call is released, the base station acquires the detailed call record of the call.

The call release includes normal release and abnormal release. The normal release means that the call connection is successfully established, and the call is released after the related service is completed. The abnormal release is After the call connection establishment fails or the call is dropped, the call is released.

Step 403: The base station determines, according to the call reason code in the detailed tracking record of the call, whether the current call is successfully accessed, and calculates the access failure rate of the network based on the judgment result.

When the network failure rate is calculated based on the judgment result, the reason for the current call access failure is obtained according to the foregoing call reason code, and the number of access failures corresponding to the cause of the access failure is counted based on the access failure cause.

The foregoing call reason code includes the indication information of the corresponding access failure reason, and the access failure reason for the current access failure may be obtained according to the indication information.

For example, taking the foregoing Table 1 as an example, if the call reason code in the detailed call record of the call generated for this call is 11, it is a non-zero value, indicating that the call access failed. According to Table 1, the corresponding reason code is called. The reason for the access failure is that the wireless environment is poor; if the call reason code in the detailed call record of the call generated for this call is 22, the access failure reason corresponding to the call reason code is insufficient resources; if the call is generated for this call The call reason code in the detailed call record of the call is 44, and the access failure reason corresponding to the call reason code is that the terminal service option is incorrect.

At the same time, according to the cell identification number in the detailed tracking record of the call, the cell to which the call is accessed is determined, and the access times of the cell are accumulated by one, and the call reason code in the detailed tracking record of the call is determined. When the call access fails, the number of access failures of the foregoing cell is increased by one, and the access failure cause corresponding to the call reason code is obtained, and the number of access failures of the access failure cause of the cell is accumulated by one, according to The access failure rate of the cell and the access failure rate of the cell are calculated, and the access failure rate of the cell is calculated, and the access failure rate is used as an overall indicator for evaluating the network access performance of the cell. The worse the network access performance is, the main factors affecting the network access performance can be determined according to the statistics of the number of access failures for various access failures of the cell.

For example, the target cell identifier in the detailed call record is 4381, and the number of accesses to the cell 4381 is incremented by 1. According to the call reason code in the detailed tracking record of the call, the call access failure is determined, and the number of access failures to the cell 4381 is determined. Accumulate 1 and know this according to call reason code 22 The reason for the call access failure is that the resource is insufficient, and the number of access failures corresponding to the insufficient resources of the cell 4381 is accumulated by one, and the access failure rate is calculated according to the access times of the cell 4381 and the number of access failures, as the network for evaluating the cell. For the overall performance of the access performance, if the statistics show that the number of access failures with insufficient resources in the access failure cause is the highest compared to the other access failure reasons, the main factors affecting the network access performance can be determined. In order to reduce resources, it is necessary to optimize resource allocation of related cells and base stations. For example, if the cell identifier in the detailed tracking record is 1122, and the call access failure is determined according to the call reason code 44, and the access failure cause is that the terminal user service option is incorrect, the number of access failures of the cell 1122 is accumulated. 1 , and accumulates the number of access failures corresponding to the error of the cell 1122 terminal user service option, because the call access failure is caused by the user terminal, and the provided network optimization reference solution is to locate the user terminal, the access failure and the network The access performance is irrelevant. The number of access failures of the access fault can be used as a reference indicator for evaluating network access performance.

Step 404: The network access performance is evaluated based on the network access failure rate, and the network optimization reference scheme is selected according to the evaluation result to optimize the network.

The network access performance is evaluated as follows: The access performance of the network is divided into several levels, and the corresponding access failure rate range is set for each level, so that the access failure rate can directly access the network. The performance is evaluated, and the corresponding cell is optimized according to the evaluation result, or several cells with high access failure rate are directly determined as objects that need to be optimized for the network.

For example, the access performance of the network can be divided into three levels, which are excellent, good, and poor. The access failure rate corresponding to the level "excellent" is less than 2%, and the access failure rate corresponding to the level "good" is 2 %-4%, and the access failure rate corresponding to the level "poor" is greater than 4%. If the access failure rate of a cell is estimated to be 6%, the network access performance of the cell is poor, and the cell needs to be Perform network optimization.

The network optimization is performed according to the evaluation result, which is: obtaining an access failure reason corresponding to the call reason code obtained in the current process, and counting the number of access failures for the access failure cause, The number of access failures of all the access faults that have been counted is compared with the set threshold, and one or more access faults whose access failure times are greater than the set threshold are determined as affecting network access. The main factor of performance is to obtain a network optimization reference scheme for the cause of the access failure that belongs to the main influencing factors, and optimize the network.

For example, the access performance of the network of the cell may be performed according to the statistics of the number of access times, the number of access failures, and the access failure rate of the cell in the specified time range (for example, one day or one week). Evaluating, if the evaluation result of the cell is poor, obtaining the access failure cause that causes the current access failure of the cell, and counting the number of access failures of the access failure cause, and obtaining the statistics that have been counted in the time range The number of access failures caused by various access failures of the cell, and the cause of the access failure exceeding the set threshold (for example, 10 times) is determined as the main factor affecting the access performance of the cell, or directly connected The number of access failures (for example, 2) is determined to be the main factor affecting the network access performance. Then, according to the access failure factors that are the main factors, the corresponding network optimization reference scheme is obtained. optimize.

The above method is also applicable to network optimization for all d and areas in the network.

Based on the foregoing embodiment, the correspondence between the call reason code and the access fault cause is established in advance, and then the corresponding call detailed tracking record is generated for each call trigger message of the mobile station, and the detailed information of the entire call flow is recorded until after the call is released. Obtaining the cell accessed by the call according to the target cell identifier in the detailed tracking record of the call, and determining whether the call access is successful according to the call reason code in the detailed record of the call, and further obtaining the call when determining that the call fails. The reason for the access failure, and finally, the access failure rate of the cell and the number of access failures of various access failure causes of the cell. According to the foregoing access failure rate, the overall access performance of the network can be evaluated, and the number of access failures according to various access failure reasons of the cell can determine the main factors affecting the network access performance of the cell, thereby enabling more effective and accurate The network access performance is optimized, and the network optimization reference scheme is provided for the cause of the access failure, which can better support the network optimization. And the above embodiment is that the statistics access failure for each call message is failed. Rate and other information make the results of the network assessment more comprehensive and accurate. For example, if the access failure rate of the cell 4381 and the cell 1122 is high, then the two cells are worthy of attention by the network optimizer; when the cause of the access failure for the cell is optimized, the cell 4381 accesses the wireless environment in the cause of the failure. The difference in access failures is the highest, and network optimizers need to consider RF coverage optimization first.

In summary, in the embodiment of the present invention, the automatic evaluation of the network access performance is achieved by counting the access failure rate and the number of access failures of each access failure cause, and the network can automatically and accurately perform the accurate and effective according to the historical operation information. The performance optimization improves the efficiency of network optimization and reduces the maintenance cost of the system. At the same time, by counting the access situation of each call of the network, the results of the network assessment are more comprehensive and accurate, and the evaluation result can be more effective and accurate. Optimize the network and provide better network optimization by providing a network optimization reference solution for access failure reasons. The spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

Claim

A method for optimizing network access performance, comprising:

Receiving a call trigger message sent by the mobile station, and generating, for the call trigger message, a call detailed tracking record for recording detailed information of the entire call flow, where the call detailed tracking record includes at least a call reason code;

After the call is released, obtaining the detailed tracking record of the call;

2. The method according to claim 1, wherein the call trigger message is a call origination message or a paging response message.

3. The method according to claim 1, wherein the call reason code is indication information indicating whether the current call is successfully accessed and the reason for the current call access failure.

4. The method according to claim 3, wherein the network access performance is evaluated according to the access failure rate of the network, including:

The level of the network access performance corresponding to the value range is obtained as the evaluation result of the network according to the value range to which the access failure rate belongs.

The method according to claim 4, wherein the network optimization is performed by selecting a corresponding network optimization reference solution according to the evaluation result, including:

Obtaining an access failure reason corresponding to the call reason code setting;

The number of access failures for the cause of the access failure is counted, and the number of access failures of all the access failures that have been counted is compared with the set threshold, and the number of access failures is greater than the set threshold. The cause of one or more access failures is determined to be the main cause of network access performance Obtain a network optimization reference scheme for the cause of the access failure that belongs to the main influencing factors, and optimize the network.

6. An apparatus for optimizing network access performance, comprising:

The device according to claim 6, wherein the call trigger message received by the first processing unit is a call origination message or a paging response message.

The apparatus according to claim 6, wherein the fourth processing unit is specifically configured to: when the network access performance is evaluated according to an access failure rate of the network, according to the access failure rate The scope of the network access performance corresponding to the range is obtained as the evaluation result of the network.

The device according to claim 8, wherein the fourth processing unit is configured to: when selecting a corresponding network optimization reference solution to optimize the network according to the evaluation result, obtain the corresponding call reason code setting The cause of the access failure is counted, and the number of access failures for the access failure reason is counted, and the number of access failures of all the access failures that have been counted is compared with the set threshold, and the number of access failures is greater than the set. The cause of one or more access failures of the threshold is determined as the main factor affecting the network access performance, and the network optimization reference scheme for the access failure cause belonging to the main influencing factors is obtained, and the network is optimized.

10. A system for optimizing network access performance, comprising:

a mobile station, configured to send a call trigger message to the base station; And a device for optimizing network access performance, configured to receive a call trigger message sent by the mobile station, and generate a call detailed tracking record for the call trigger message, where the call detailed tracking record is used to record detailed information of the entire call flow, the call The detailed tracking record includes at least a call reason code. After the call is released, the call detailed tracking record is obtained, and the call reason code in the detailed tracking record of the call is used to determine whether the call is successfully accessed, and based on the judgment result. The access failure rate of the network is evaluated, and the access performance of the network is evaluated according to the access failure rate of the network, and the network optimization reference scheme is selected according to the evaluation result to optimize the network.