CN103874083B - A kind of method and system evaluated and tested multisystem wireless signal and covered altogether - Google Patents

Abstract

The invention discloses a method and system for evaluating co-coverage of multi-system wireless signals. The method includes: collecting call records of mobile users in a multi-wireless communication system, extracting key fields; Record and store in the initial association database; count the occurrence frequency of inter-system associated wireless device pairs in the database, and extract inter-system associated wireless device pairs whose frequency is greater than the first threshold; count and extract inter-system associated wireless device pairs in both directions Frequency, determine that the associated wireless device pairs whose occurrence frequency difference in both directions is lower than the second threshold have a co-coverage relationship; analyze the co-coverage relationship of the multi-wireless communication system according to the co-coverage relationship of the associated wireless device pairs. The adoption of the invention can improve the accuracy of evaluating the co-coverage of multi-system wireless signals.

Description

A method and system for evaluating multi-system wireless signal co-coverage

technical field

The present invention relates to the technical field of signal co-coverage evaluation in wireless communication systems, in particular to a method and system for evaluating multi-system wireless signal co-coverage.

Background technique

With the deployment of various wireless communication systems of operators on the existing network, various wireless signals overlap with each other, and multi-mode mobile terminals are also developing rapidly. For a wireless network, it is necessary to know which wireless signals are available in a certain geographical area, which requires evaluating which wireless signal coverage is available in a certain area.

There are mainly two existing evaluation methods: one is on-site testing, that is, testers use wireless testing equipment to go to the site for testing, and test the main coverage wireless signal and system equipment of each system in the area, so as to obtain the multi-system inter-equipment co-coverage relationship. However, on-site testing is only suitable for optimization and analysis in local areas, and cannot be fully promoted and implemented, nor is it suitable for automatic updates after wireless network changes.

Therefore, another evaluation method is widely used in existing wireless communication systems, which specifically includes: first select a system wireless device as a reference device, and use the longitude and latitude of the reference device and the time advance in the device evaluation report to estimate Coverage radius; then calculate the distance to the reference device based on the latitude and longitude of other system wireless devices. If it is smaller than the reference device coverage radius, it is considered that there is a co-coverage area between the devices between the systems, so as to find the associated coverage relationship of all the devices between the systems in the entire network. However, this evaluation method needs to use data such as longitude and latitude of equipment, and this data is artificial static data, which needs to be manually input into the system. There are problems such as human error and untimely update, which affect the accuracy of evaluation; the time advance in the evaluation report ( That is, the TA value) change step length is 550 meters, that is, the TA value change of 1 represents 550 meters, and this distance has a large error in urban areas. In addition, if the wireless device has a repeater or remote radio equipment, the deviation between the TA value and the actual distance is too large, so the influence of the repeater will also affect the evaluation accuracy.

Contents of the invention

In view of this, the main purpose of the present invention is to provide a method and system for evaluating co-coverage of multi-system wireless signals, which can improve the accuracy of evaluating co-coverage of multi-system wireless signals.

In order to achieve the above object, technical solution of the present invention is achieved in that way:

The present invention provides a method for evaluating co-coverage of multi-system wireless signals, the method comprising:

Collecting call records of mobile users in the multi-wireless communication system, and extracting key fields in the call records;

According to the extracted key field, generate a record of the inter-system associated wireless device pair, and store the record of the inter-system associated wireless device pair into the initial association database;

Counting the occurrence frequency of each inter-system associated wireless device pair in the initial association database, and extracting inter-system associated wireless device pairs whose occurrence frequency is greater than the first threshold;

Counting the frequency of occurrence of the extracted pair of inter-system associated wireless devices in both directions, and when the difference in the frequency of occurrence in the two directions is lower than a second threshold, determining that the corresponding pair of associated wireless devices has a co-coverage relationship;

According to the comprehensive analysis of the co-coverage relationship of associated wireless device pairs, the co-coverage relationship of the multi-wireless communication system is obtained.

After obtaining the co-coverage relationship of the multi-wireless communication system, the method further includes:

According to the co-coverage relationship of the multi-system wireless communication systems and the location information of the wireless equipment, a geographical information system (GIS) map co-covered by the multi-system wireless networks is generated.

According to the extracted key field, generating a record of the inter-system associated wireless device pair includes:

Comparing the call records of the same mobile user in every two different wireless communication systems, in the call records of every two different wireless communication systems, if the bill end time of one of the call records is later than the bill start time of the other call record , and the time interval between the two is less than the preset time threshold, then generate a record corresponding to the intersystem associated wireless device pair of the two call records;

Wherein, the record of the inter-system associated wireless device pair includes: the identification information of the mobile user, the wireless communication system and the wireless device identification corresponding to the two call records.

The call record includes: mobile user's voice bill, Internet bill, and signaling data.

The key fields include: identification information of the mobile user, wireless device identification, bill time;

Wherein, the identification information of the mobile user includes at least one of the following: a mobile user number, a terminal International Mobile Equipment Identity IMEI of the mobile user, and a medium access control MAC address of the mobile user;

The wireless device identifier includes at least one of the following: base station sector identifier CI, hotspot network access server identifier NASID, access point media access control AP MAC address;

The bill time includes a bill start time and a bill end time.

The location information of the wireless device includes at least one of the following: longitude and latitude information of the wireless device, and global positioning address code information of the wireless device.

The present invention also provides a system for evaluating co-coverage of multi-system wireless signals, the system comprising:

A data collection module, configured to collect call records of mobile users in a multi-wireless communication system, and extract key fields in the call records;

A database module, configured to generate a record of the pair of inter-system associated wireless devices according to the extracted key field, and store the record of the pair of inter-system associated wireless device into the initial association database;

The database analysis module is used to count the frequency of occurrence of each inter-system associated wireless device pair in the initial association database, and extract inter-system associated wireless device pairs whose occurrence frequency is greater than the first threshold; count the extracted inter-system associated wireless device pairs The frequency of occurrence of the device pair in both directions, when the difference in the frequency of occurrence in the two directions is lower than the second threshold, it is determined that the corresponding associated wireless device pair has a co-coverage relationship; comprehensive analysis is performed according to the co-coverage relationship of the associated wireless device pair , to obtain the co-coverage relationship of the multi-wireless communication system;

The system also includes:

The map generating module is configured to generate a geographical information system (GIS) map co-covered by multi-system wireless networks according to the co-coverage relationship of the multi-wireless communication systems and the location information of the wireless devices.

The database module is further used to compare the call records of the same mobile user in every two different wireless communication systems, and in every two call records of different wireless communication systems, if the bill end time of one of the call records is later than Another call record bill start time, and the time interval between the two is less than the preset time threshold, then generate a record corresponding to the intersystem associated wireless device pair of the two call records;

Wherein, the record of the inter-system associated wireless device pair includes: the identification information of the mobile user, the wireless communication system and the wireless device identification corresponding to the two call records.

The call record includes: mobile user's voice bill, Internet bill, and signaling data.

The key fields include: identification information of the mobile user, wireless device identification, bill time;

Wherein, the identification information of the mobile user includes at least one of the following: a mobile user number, a terminal International Mobile Equipment Identity IMEI of the mobile user, and a medium access control MAC address of the mobile user;

The wireless device identifier includes at least one of the following: base station sector identifier CI, hotspot network access server identifier NASID, access point media access control AP MAC address;

The bill time includes a bill start time and a bill end time.

The location information of the wireless device includes at least one of the following: longitude and latitude information of the wireless device, and global positioning address code information of the wireless device.

A method and system for evaluating multi-system wireless signal co-coverage provided by the present invention analyzes whether inter-system switching occurs according to the call records of mobile users in different wireless communication systems, and uses this as a basis for judging the co-coverage of wireless signals in different systems. Coverage basis: According to the co-coverage relationship of different wireless communication systems, combined with the location information of wireless devices, a geographic information system (GIS, Geographic Information System) map of multi-system wireless network co-coverage is generated. Through the present invention, it is possible to solve the problem of relatively large errors in the evaluation method of co-coverage in the prior art, improve the accuracy and practicability of evaluating the co-coverage of multi-system wireless signals, and make it possible to analyze the network capacity of multi-systems in a certain area, user behavior under the network, terminal It is possible to implement the foundation, etc., and provide strong support for the subsequent guidance of users in network selection and network load balancing.

Description of drawings

FIG. 1 is a schematic flowchart of a method for evaluating co-coverage of multi-system wireless signals according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a system for evaluating co-coverage of multi-system wireless signals according to an embodiment of the present invention.

detailed description

The technical solutions of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

An embodiment of the present invention provides a method for evaluating multi-system wireless signal co-coverage, as shown in Figure 1, the method mainly includes:

Step 101, collecting call records of mobile users in the multi-wireless communication system, and extracting key fields in the call records;

Here, the key field includes: identification information of the mobile user, wireless device identification, bill time; the multi-wireless communication system includes: Global System for Mobile Communications (GSM, Global System for Mobile Communications), Code Division Multiple Access (CDMA, Code Division Multiple Access), Wireless Local Area Network (WIFI), Long Term Evolution (LTE, Long Term Evolution) and other wireless communication systems; the call records include: mobile user's voice bill, Internet bill, message data, etc.

Wherein, the identification information of the mobile user includes at least one of the following: a mobile user number, a terminal International Mobile Equipment Identity (IMEI, International Mobile Equipment Identity) of the mobile user, and a Media Access Control (MAC, Media Access Control) address of the mobile user;

The wireless device identifier refers to the identifier of the wireless device that provides call services for the mobile user's terminal when the mobile user is talking;

The wireless device identifier includes at least one of the following: base station sector identifier (CI, Cell Identifier), hotspot network access server identifier (NASID), access point medium access control (AP MAC) address;

The bill time includes a bill start time and a bill end time.

In step 102, according to the extracted key field, a record of the inter-system associated wireless device pair is generated, and the record of the inter-system associated wireless device pair is stored in an initial association database.

Specifically, comparing the call records of the same mobile user in every two different wireless communication systems, in every two call records of different wireless communication systems, if the bill end time of one of the call records is later than that of the other call record start time, and the time interval between the two is less than the preset time threshold, a record of the inter-system associated wireless device pair corresponding to the two call records is generated, and the record of the inter-system associated wireless device pair includes : the identification information of the mobile user, and the wireless device identifications of the mobile user in the two corresponding wireless communication systems respectively. Wherein, the time threshold may be set according to parameters such as inter-system handover delay parameters, WIFI authentication process time delay, and the like.

For example: the end time of a call record 1 of mobile user A in the GSM system is later than the start time of a call record 2 of mobile user A in the CDMA system, and the time interval between the two is less than the preset time threshold , then it is considered that the wireless devices in call record 1 and call record 2 may have overlapping coverage areas, thereby generating a record corresponding to the inter-system associated wireless device pair of call record 1 and call record 2, which includes: mobile user A The identification information of the GSM system and the wireless device identification corresponding to the call record 1, and the CDMA system and the wireless device identification corresponding to the call record 2.

The records of all inter-system associated wireless devices are stored in the initial association database, and a mobile user corresponds to one or more records. The data structure of the initial association database is shown in Table 1 below:

Table 1

Step 103: Count the occurrence frequency of each inter-system associated wireless device pair in the initial association database, and extract inter-system associated wireless device pairs whose occurrence frequency is greater than a first threshold.

In the above Table 1, the wireless device of the GSM system identified as 21007-10622 and the wireless device of the TD system identified as 41737-10622 are called an inter-system associated wireless device pair, and the wireless device of the GSM system identified as 20111-20101 The wireless device with the TD system identified as 41737-10622 is also called an inter-system associated wireless device pair.

Step 103 is to count the frequency of occurrence of each inter-system associated wireless device pair, that is, count the number of records that include a certain inter-system associated wireless device pair; the so-called records that include the same inter-system associated wireless device pair, namely Contains records of wireless device 1 and wireless device 2 (wireless device 1 and wireless device 2 form an inter-system associated wireless device pair); then, extract inter-system associated wireless device pairs whose frequency of occurrence is greater than the first threshold for subsequent processing. Wherein, the first threshold can be obtained by analyzing the actual data of the known multi-system overlapping coverage area of the live network.

Step 104: Count the frequency of occurrence of the extracted pair of inter-system associated wireless devices in both directions, and when the difference between the frequency of occurrence in the two directions is lower than a second threshold, determine that the corresponding pair of associated wireless devices has a co-coverage relationship.

The so-called two-way direction means that the direction of call switching includes two directions, for example, the switching direction from the GSM system to the TD system (the start time of the bill of the mobile user in the TD system is later than the end time of the bill in the GSM system) is one direction, and The switching direction from the TD system to the GSM system (the start time of the mobile user's bill in the GSM system is later than the end time in the TD system) is another direction.

Taking the GSM system and the TD system as examples, the so-called statistically extracted frequency of inter-system associated wireless device pairs in both directions is:

Statistically count the frequency of occurrence of the wireless device in the inter-system associated wireless device pair switching direction from the GSM system to the TD system (the start time of the mobile user's bill in the TD system is later than the end time of the bill in the GSM system), and the frequency of the inter-system associated wireless device Frequency of the wireless equipment in the pair switching direction from the TD system to the GSM system (the mobile user’s call record start time in the GSM system is later than the call record end time in the TD system).

Continuing to take the GSM system and the TD system as examples, when the difference between the occurrence frequencies in the above two directions is lower than the second threshold, it is determined that the corresponding pair of associated wireless devices has a co-coverage relationship. The second threshold is generally a relative variation range, which can be obtained by analyzing actual data of known overlapping coverage areas of multiple systems on the live network.

In step 105, a comprehensive analysis is performed according to the co-coverage relationship of the associated wireless device pair to obtain the co-coverage relationship of the multi-wireless communication system.

According to the comprehensive analysis of the co-coverage relationship of associated wireless device pairs, the co-coverage relationship of multiple wireless communication systems can be obtained. For example, if system A is associated with system B, and system A is associated with system C, then system A has a co-coverage relationship with system B or C. , but the co-coverage relationship between system B and system A or C cannot be determined; if system B is also associated with system C on this basis, it is considered that systems A, B, and C have a co-coverage relationship.

Preferably, the method in the embodiment of the present invention may further include after step 105:

Step 106: Generate a GIS map of co-coverage of multi-system wireless networks according to the co-coverage relationship of the multi-system wireless communication systems and the location information of the wireless devices.

The location information of the wireless device includes at least one of the following: longitude and latitude information of the wireless device, and global positioning address code information of the wireless device.

The co-coverage relationship of multiple wireless communication systems is combined with the location information of wireless devices to obtain co-covered multi-system wireless devices in a geographical location, which can be used for GIS map presentation and correlation analysis of multi-system wireless networks.

The embodiment of the present invention also provides a system for evaluating co-coverage of multi-system wireless signals. As shown in FIG. 2 , the system mainly includes: a data acquisition module 10 , a database module 20 and a database analysis module 30 . in,

The data acquisition module 10 is used to collect the call record of the mobile user in the multi-wireless communication system, and extract key fields in the call record;

Here, the key fields include: identification information of the mobile user, wireless device identification, bill time;

The database module 20 is configured to generate a record of the inter-system associated wireless device pair according to the extracted key field, and store the record of the inter-system associated wireless device pair into the initial association database;

The database analysis module 30 is used to count the occurrence frequency of each inter-system associated wireless device pair in the initial association database, and extract inter-system associated wireless device pairs whose occurrence frequency is greater than the first threshold; count the extracted inter-system association The frequency of occurrence of the wireless device pair in both directions, when the difference in the frequency of occurrence in the two directions is lower than the second threshold, determine that the corresponding associated wireless device pair has a co-coverage relationship; perform synthesis according to the co-coverage relationship of the associated wireless device pair Through the analysis, the co-coverage relationship of the multi-wireless communication system is obtained.

Preferably, the system in the embodiment of the present invention may further include: a map generating module 40, configured to generate geographical information of co-coverage of multi-system wireless networks according to the co-coverage relationship of the multi-wireless communication systems and the location information of wireless devices System GIS map.

Preferably, the database module 20 is further used to compare the call records of the same mobile user in every two different wireless communication systems, in every two call records of different wireless communication systems, if one of the call records ends The time is later than the bill start time of another call record, and the time interval between the two is less than the preset time threshold, then a record of the inter-system associated wireless device pair corresponding to the two call records is generated, and the inter-system The record of the associated wireless device pair includes: the identification information of the mobile user, the wireless communication system and the wireless device identification corresponding to the two call records.

The call record includes: mobile user's voice bill, Internet bill, and signaling data.

The identification information of the mobile user includes at least one of the following: mobile user number, terminal international mobile equipment identity code IMEI of the mobile user, and medium access control MAC address of the mobile user;

The wireless device identifier includes at least one of the following: base station CI, NASID, AP MAC address;

The bill time includes a bill start time and a bill end time.

The location information of the wireless device includes at least one of the following: longitude and latitude information of the wireless device, and global positioning address code information of the wireless device.

To sum up, in the embodiment of the present invention, according to the call records of mobile users in different wireless communication systems, it is analyzed whether an inter-system handover has occurred, and this is used as a basis for judging the co-coverage of wireless signals of different systems; Co-coverage relationship, combined with the location information of wireless devices, can generate a GIS map of multi-system wireless network co-coverage. Through the embodiments of the present invention, it is possible to solve the problem of relatively large errors in the evaluation co-coverage method of the prior art, improve the accuracy and practicability of evaluating the co-coverage of multi-system wireless signals, and make it possible to analyze the network capacity of multiple systems in a certain area and the users under the network. Behavior, terminal foundation, etc. become possible, and provide strong support for subsequent guidance of user network selection and network load balancing.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

Claims (12)

1. A method for evaluating multi-system wireless signal co-coverage, the method comprising:

collecting call records of a mobile user in a multi-wireless communication system;

comparing the call records of the same mobile user in every two different wireless communication systems, and if the call ticket ending time of one call record is later than the call ticket starting time of the other call record in the call records of every two different wireless communication systems and the time interval between the call records is less than a preset time threshold, generating a record of an inter-system association wireless equipment pair corresponding to the two call records, and storing the record of the inter-system association wireless equipment pair into an initial association database;

counting the occurrence frequency of each intersystem association wireless equipment pair in the initial association database, and extracting the intersystem association wireless equipment pairs with the occurrence frequency larger than a first threshold;

respectively counting the occurrence frequency that the call ticket starting time of the mobile user in one wireless communication system is later than the call ticket ending time of the other wireless communication system and the occurrence frequency that the call ticket starting time of the mobile user in the other wireless communication system is later than the call ticket ending time of the one wireless communication system, and determining that the corresponding associated wireless equipment pair has a common coverage relation when the difference value of the occurrence frequencies in the two directions is lower than a second threshold;

and comprehensively analyzing the common coverage relation according to the associated wireless equipment to obtain the common coverage relation of the multi-wireless communication system.

2. The method for evaluating co-coverage of multiple-system wireless signals as recited in claim 1, wherein after obtaining the co-coverage relationship of multiple wireless communication systems, the method further comprises:

and generating a Geographic Information System (GIS) map of the multi-system wireless network co-coverage according to the co-coverage relation of the multi-wireless communication systems and the position information of the wireless equipment.

3. The method for evaluating multi-system wireless signal co-coverage according to claim 1, wherein said collecting call records of mobile subscribers in multi-wireless communication systems further comprises: extracting a key field of the call record;

wherein the record of the intersystem association wireless device pair comprises: identification information of the mobile user, a wireless communication system corresponding to the two call records and a wireless equipment identification.

4. The method for evaluating multi-system wireless signal co-coverage according to claim 1, 2 or 3, wherein the call log comprises: the mobile user's voice call ticket, the signaling data.

5. The method of evaluating multi-system wireless signal co-coverage according to claim 3, wherein the key fields comprise: identification information of the mobile user, identification of the wireless equipment and ticket time;

wherein the identification information of the mobile subscriber comprises at least one of: the method comprises the following steps that a mobile user number, a terminal international mobile equipment identity code IMEI of a mobile user and a medium access control MAC address of the mobile user are obtained;

the wireless device identification comprises at least one of: a base station sector identifier CI, a hotspot network access server identifier NASID and an access point media access control (AP) MAC address;

the call ticket time comprises call ticket starting time and call ticket ending time.

6. The method of evaluating multi-system wireless signal co-coverage according to claim 2, wherein the location information of the wireless device includes at least one of: latitude and longitude information of the wireless device, and global positioning address code information of the wireless device.

7. A system for evaluating multi-system wireless signal co-coverage, the system comprising:

the data acquisition module is used for acquiring call records of the mobile users in the multi-wireless communication system;

the database module is used for comparing the call records of the same mobile user in every two different wireless communication systems, and if the call ticket ending time of one call record is later than the call ticket starting time of the other call record in the call records of every two different wireless communication systems and the time interval between the call ticket ending time and the call ticket starting time is less than a preset time threshold, a record of an inter-system associated wireless device pair corresponding to the two call records is generated, and the record of the inter-system associated wireless device pair is stored in an initial associated database;

a database analysis module, configured to count occurrence frequency of each inter-system association wireless device pair in the initial association database, and extract an inter-system association wireless device pair whose occurrence frequency is greater than a first threshold; respectively counting the occurrence frequency that the call ticket starting time of the mobile user in one wireless communication system is later than the call ticket ending time of the other wireless communication system and the occurrence frequency that the call ticket starting time of the mobile user in the other wireless communication system is later than the call ticket ending time of the one wireless communication system, and determining that the corresponding associated wireless equipment pair has a common coverage relation when the difference value of the occurrence frequencies in the two directions is lower than a second threshold; and comprehensively analyzing the common coverage relation according to the associated wireless equipment to obtain the common coverage relation of the multi-wireless communication system.

8. The system for evaluating multi-system wireless signal co-coverage according to claim 7, further comprising:

and the map generation module is used for generating a Geographic Information System (GIS) map of the multi-system wireless network common coverage according to the common coverage relation of the multi-wireless communication systems and the position information of the wireless equipment.

9. The system for evaluating multi-system wireless signal co-coverage according to claim 7, wherein said data collection module is further configured to,

extracting key fields in the call records;

wherein the record of the intersystem association wireless device pair comprises: identification information of the mobile user, a wireless communication system corresponding to the two call records and a wireless equipment identification.

10. The system for evaluating multi-system wireless signal co-coverage according to claim 7, 8 or 9, wherein said call log comprises: the mobile user's voice call ticket, the signaling data.

11. The system for evaluating multi-system wireless signal co-coverage according to claim 9, wherein said key fields comprise: identification information of the mobile user, identification of the wireless equipment and ticket time;

wherein the identification information of the mobile subscriber comprises at least one of: the method comprises the following steps that a mobile user number, a terminal international mobile equipment identity code IMEI of a mobile user and a medium access control MAC address of the mobile user are obtained;

the wireless device identification comprises at least one of: a base station sector identifier CI, a hotspot network access server identifier NASID and an access point media access control (AP) MAC address;

the call ticket time comprises call ticket starting time and call ticket ending time.

12. The system for evaluating multi-system wireless signal co-coverage according to claim 8, wherein the location information of the wireless device includes at least one of: latitude and longitude information of the wireless device, and global positioning address code information of the wireless device.