Method and system for identifying base station signal dead zones

Abstract

The application discloses a method and system for identifying a base station signal blind area. The method is based on an ePDG edge computing node and comprises the following steps: acquiring VoWiFi data collected by the ePDG node in real time; analyzing call demand information of each WiFi area in a current scanning period based on the VoWiFi data acquired in the current scanning period; determining whether each WiFi area needs positioning based on the call demand information of each WiFi area; and if there is a WiFi area that needs positioning, reporting information of the WiFi area that needs positioning to a core network centralized management node. The application can accurately locate a base station signal blind area that needs optimization without consuming a large amount of manpower and material resources, sacrificing user experience and passively collecting data.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication technology, in particular to a method and system for identifying base station signal blind area. BACKGROUND

[0002] At present, base station signals have basically covered population-dense areas, supplemented by VoWiFi and satellite, etc. People can easily use mobile terminals to make calls in most places. However, due to factors such as terrain, buildings, weather, and population density, there will inevitably be base station signal blind areas. Although there are satellite and VoWiFi communication supplements, each has its own limitations. Satellite only has signals when it passes through the area, and VoWiFi can only be used when connected to WiFi. Therefore, in the long term, the base station signal blind area problem can only be better solved by optimizing base station deployment.

[0003] In the prior art, the main means for detecting base station signal blind areas are professional equipment field detection, public complaint feedback, and operator signal coverage map. These means are either time-consuming and labor-intensive, or passive data collection by sacrificing user experience, or only theoretical data that is large and general. There is a lack of technical means that do not consume a lot of manpower and resources, do not sacrifice user experience, and can accurately identify base station signal blind areas that need to be optimized. SUMMARY

[0004] The purpose of the present application is to provide a method, system, device, and computer readable storage medium for identifying base station signal blind areas, without consuming a lot of manpower and resources, without sacrificing user experience for passive data collection, and accurately locating base station signal blind areas that need to be optimized.

[0005] To achieve the above purpose, the present application provides a method for identifying base station signal blind areas, which is implemented based on an ePDG edge computing node, comprising:

[0006] Real-time acquisition of VoWiFi data collected by an ePDG node;

[0007] Based on the VoWiFi data obtained in the current scanning period, the call demand information of each WiFi area in the current scanning period is analyzed and obtained;

[0008] Based on the call demand information of each WiFi area, it is determined whether each WiFi area needs to be located;

[0009] If there is a WiFi area that needs to be located, the information of the WiFi area that needs to be located is reported to a core network centralized management node.

[0010] Optionally, the VoWiFi data comprises an IP address of the user terminal, an IMSI, and a VoWiFi call record.

[0011] One of the IP addresses defines one of the WiFi areas.

[0012] Optionally, the call demand information is obtained by analyzing the number of users accessing the WiFi area in the current scanning period and the total VoWiFi call record.

[0013] To achieve the above object, the present application further provides a device comprising:

[0014] a processor;

[0015] a memory having executable instructions of the processor stored therein;

[0016] The processor is configured to execute the executable instructions to perform the method for identifying a base station signal blind area as described above.

[0017] To achieve the above object, the present application further provides a computer readable storage medium having a program stored thereon, the program being executed by a processor to implement the method for identifying a base station signal blind area as described above.

[0018] The present application further provides a computer program product or a computer program comprising computer instructions stored in a computer readable storage medium. The processor of an electronic device reads the computer instructions from the computer readable storage medium, and the processor executes the computer instructions to cause the electronic device to perform the method for identifying a base station signal blind area as described above.

[0019] To achieve the above object, the present application further provides a system for identifying a base station signal blind area, the system comprising an ePDG node, an ePDG edge computing node, a network node, and a core network centralized management node.

[0020] The ePDG node is configured to collect VoWiFi data in real time.

[0021] The ePDG edge computing node is configured to:

[0022] acquire the VoWiFi data collected by the ePDG node in real time;

[0023] analyze the call demand information of each WiFi area in the current scanning period based on the VoWiFi data acquired in the current scanning period;

[0024] determine whether each of the WiFi areas needs to be positioned based on the call demand information of each of the WiFi areas.

[0025] If the WiFi area to be positioned exists, the information of the WiFi area to be positioned is reported to the core network centralized management node;

[0026] The core network centralized management node is configured to: call core network resources to position the WiFi area to be positioned;

[0027] The network node is configured to: be responsible for information transmission between the ePDG node, the ePDG edge computing node and the core network centralized management node.

[0028] The VoWiFi data includes IP address, IMSI and VoWiFi call record of the user terminal, one IP address defines one WiFi area;

[0029] The real-time collection of VoWiFi data includes:

[0030] When the user terminal accesses the ePDG node, the ePDG node acquires the IP address and IMSI of the user terminal;

[0031] When the user terminal initiates VoWiFi call, the ePDG node records the time of the VoWiFi call.

[0032] Optionally, the calling of core network resources to position the WiFi area to be positioned includes:

[0033] Positioning the position of the user terminal in the WiFi area to be positioned for VoWiFi call by using base station; or,

[0034] If the user terminal in the WiFi area to be positioned is located in a position without base station signal, the user terminal is positioned by using the base station when the user terminal is online again through the base station.

[0035] Optionally, after the WiFi area to be positioned is positioned, the core network centralized management node deletes the WiFi area to be positioned from the WiFi area list, and the core network centralized management node sends the updated WiFi area list to the ePDG node for VoWiFi data collection of the WiFi area in the WiFi area list.

[0036] Optionally, the core network centralized management node is further configured to: issue a scanning period to the ePDG node and the ePDG edge computing node, issue ePDG node management information to the ePDG node, and issue algorithm strategy information to the ePDG edge computing node;

[0037] The ePDG node management information includes instruction information that the ePDG node needs to perform VoWiFi data collection, and a WiFi area that the ePDG node needs to scan.

[0038] In the embodiments of the present application, the base station signal blind area can be identified only by enhancing the related nodes in software, without consuming a large amount of manpower and material resources, and without waiting for user complaints and feedback to investigate the base station signal blind area. The base station signal blind area can be automatically collected and identified, without sacrificing user experience to passively collect data. Moreover, the base station signal blind area that needs to be optimized urgently can be accurately identified and located, so as to guarantee the user experience at a small cost. In addition, the base station signal blind area can be automatically identified and located, so as to reduce the operation and maintenance difficulty and workload of the base station operation and maintenance personnel. Furthermore, in the embodiments of the present application, the data collection is performed by each ePDG node, and the calculation and analysis are performed by the ePDG edge computing node, which is beneficial to improving the processing efficiency and reducing the cloud load. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a non-roaming architecture of ePDG / EPC interworking with 5GS.

[0040] Figure 2 is a flowchart of the method for identifying the base station signal blind area in the embodiments of the present application.

[0041] Figure 3 is an architecture diagram of the system for identifying the base station signal blind area in the embodiments of the present application.

[0042] Figure 4 is an information flow diagram of the network node in the embodiments of the present application.

[0043] Figure 5 is a schematic diagram of the ePDG node data collection in the embodiments of the present application.

[0044] Figure 6 is a schematic block diagram of the device in the embodiments of the present application. DETAILED DESCRIPTION

[0045] In order to describe the technical content, structural features, achieved purposes and effects of the present application in detail, the following will be described in detail in conjunction with the embodiments and the accompanying drawings.

[0046] In order to facilitate the understanding of the present application, the related terms appearing in the present application are explained as follows:

[0047] VoWiFi (Voice over Wi-Fi): A technology that transmits voice calls over a wireless local area network (WLAN). In simple terms, it is a way to convert traditional mobile calls into calls made over a Wi-Fi network. With the support of VoWiFi, users' mobile phones or other mobile devices use network data for voice calls when connected to a Wi-Fi network, without relying on the mobile operator's cellular network.

[0048] ePDG (evolved Packet Data Gateway): An evolved packet data gateway. ePDG is mainly used to support Wi-Fi Calling (Wi-Fi call) services. ePDG is responsible for handling data packet routing, forwarding and security functions to ensure seamless switching and connection between LTE network and Wi-Fi network for users. ePDG plays a key role in mobile communication networks, providing better user experience and service quality.

[0049] EPC (Evolved Packet Core): Core packet network evolution, 4G core network.

[0050] 5GS (5G system): 5G core network.

[0051] ePDG / EPC and 5GS can interwork. Please refer to Figure 1 , which shows the non-roaming architecture of ePDG / EPC interworking with 5GS.

[0052] In addition, the base station signal blind area mentioned in this application refers to a place where there is no base station signal or the base station signal is weak. In the case of weak base station signal, after the user terminal (such as mobile phone) connects to the base station and WiFi, when making a call, due to the weak base station signal and strong WiFi signal, the user terminal will prefer VoWiFi for calling. In the case of no base station signal, after the user terminal connects to WiFi, when making a call, the user terminal will make a call through VoWiFi.

[0053] Embodiment one

[0054] Please refer to Figures 2 to 4The application discloses a method for identifying a base station signal blind area, and is implemented based on an ePDG edge computing node 200. The ePDG edge computing node 200 is independent of an ePDG node 100 (an ePDG network element) but is complementary to the ePDG node 100. The ePDG edge computing node 200 is mainly used for receiving and collecting VoWiFi data collected by the ePDG node 100, and performing arrangement and storage, and performing calculation and analysis after collecting a sufficient amount of data. The design can make the ePDG edge computing node 200 connect multiple ePDG nodes 100 in the same region, facilitate unified collection and arrangement of data in a certain region, and independently store and back up the data, thereby avoiding a large amount of data loss caused by failure of a certain ePDG node 100 and improving data security.

[0055] The method comprises the following steps.

[0056] In S101, real-time VoWiFi data collected by the ePDG node 100 is acquired.

[0057] In the method, the ePDG node 100 is only responsible for collecting VoWiFi data of users and does not perform calculation and analysis on the VoWiFi data, thereby minimizing the influence on normal business functions of the ePDG node 100.

[0058] In some embodiments, the VoWiFi data comprises an IP address of a user terminal, an IMSI and a VoWiFi call record.

[0059] When a user terminal accesses the ePDG node 100, the ePDG node 100 records the IP address and the IMSI of the user terminal and reports the IP address and the IMSI to the ePDG edge computing node 200 in real time.

[0060] Specifically, one IP address defines one WiFi area, that is, the IP address and the WiFi area have a one-to-one correspondence, and IP addresses of all users in one WiFi area are the same. Due to the existence of NAT, user terminals in the same WiFi coverage area are converted through NAT when connecting to the ePDG, and all show the same IP address (i.e. a WiFi or gateway IP) to the outside, only the port used by each user terminal is different.

[0061] In the process of online of the user terminal, the IMSI of the user terminal is carried in the attachment process, so that the ePDG node 100 can collect the IMSI information of the user terminal and distinguish different users.

[0062] Please refer to Figure 5 which is a schematic diagram of data collection by the ePDG node 100. The VoWiFi data collected when the user terminal is online is shown in Table 1.

[0063] IP address of the user terminal IMSI of the user terminal 202.108.10.25 460000123456001 202.108.10.25 460000123456002 202.108.10.26 460000123456003 202.108.10.25 460000123456004

[0064] Table I

[0065] From Figure 5 As can be seen from Table I, in the coverage area of WiFi A, the IP addresses of all user terminals accessing the ePDG are 202.108.10.25, and in the coverage area of WiFi B, the IP addresses of all user terminals accessing the ePDG are 202.108.10.26. The coverage area of WiFi A and the coverage area of WiFi B are respectively a WiFi area defined in the present application. Each user terminal has a dedicated IMSI, and the user can be distinguished based on the IMSI.

[0066] When the user terminal initiates a VoWiFi call, the ePDG node 100 reports the call information to the ePDG edge computing node 200 in real time. Specifically, the ePDG node 100 records the time of the VoWiFi call and reports it to the ePDG edge computing node 200 in real time.

[0067] Please refer to Table II. When the user terminal initiates a VoWiFi call, a dedicated bearer is created for transmitting voice and video data, so the ePDG node 100 can determine the time of the VoWiFi call according to the time of creating the dedicated bearer. At this time, the ePDG node 100 collects the following data and transmits it to the ePDG edge computing node 200.

[0068] IMSI of the user terminal User call time 460000123456001 2024-11-24 16:24:31 460000123456002 2024-11-24 12:46:37 460000123456003 2024-11-24 14:34:52 460000123456004 2024-11-24 19:12:30

[0069] Table II

[0070] In S102, the call demand information of each WiFi area in the current scanning period is analyzed based on the VoWiFi data obtained in the current scanning period.

[0071] Specifically, the scanning period can be issued by the core network centralized management node 400 to the ePDG node 100 and the ePDG edge computing node 200 before the scanning starts, to determine the time period of the scanning. After the current scanning period ends, the ePDG edge computing node 200 can calculate and analyze based on the VoWiFi data obtained in the current scanning period.

[0072] Specifically, the policy information required for the ePDG edge computing node 200 to calculate and analyze can be issued by the core network centralized management node 400. For example, the policy information can include whether the number of accessed users is greater than a number setting value and whether the total call record is greater than a call record setting value.

[0073] Specifically, the call demand information, i.e. whether the call demand is high, can be determined based on specific algorithm strategy information. For example, the call demand information can be analyzed based on the number of users accessing in the current scanning period and the total VoWiFi call record of the WiFi area. If the number of users accessing is greater than a number setting value and the total VoWiFi call record is greater than a times setting value, it is considered that the call demand is high, otherwise it is considered that the call demand is not high enough.

[0074] S103, determining whether each WiFi area needs positioning based on the call demand information of each WiFi area.

[0075] When it is determined that the call demand is high, it can be determined that the WiFi area needs positioning.

[0076] Please refer to Table III which gives an example of VoWiFi data statistical analysis table. The ePDG edge computing node 200 can arrange the VoWiFi data collected by the ePDG node 100 into the data format as shown in Table III. Wherein, when the user terminal is online, the ePDG edge computing node 200 will fill in the IP address and IMSI of the user terminal, and when the user terminal makes VoWiFi call, the call record of the user terminal and the total area call record of the WiFi area to which the user terminal belongs will be scanned and accumulated in the scanning period. The analysis result and whether to position two data are determined after the current scanning period is completed according to the first four parameters and specific algorithm strategy, for example, first, the total number of area call records can be judged to be high or not high according to the algorithm strategy (which can be compared with the setting value), if it is high, it is preliminarily indicated that there is high VoWiFi call demand, secondly, the number of IMSIs under the same IP (the same WiFi area) is judged to be many or few (which can be compared with the setting value), if it is many, it means that the users in the area are relatively dense, then the analysis result that the call demand is high can be obtained, and finally the conclusion that the area needs positioning is obtained. If the total number of area call records is not high, or although the total number of area call records is high, but the users in the area are relatively few, the analysis result that the call demand is not high can be obtained, and finally the conclusion that the area does not need positioning temporarily is obtained. Of course, this is only an example of determining the high or low of the call demand, and in different embodiments, different algorithm strategies can be used.

[0077]

[0078] Table III

[0079] S104, if there is a WiFi area that needs positioning, the information of the WiFi area that needs positioning is reported to the core network centralized management node 400 (the management platform of EPC). The WiFi area that needs positioning is the base station signal blind area that needs to be solved.

[0080] After the core network centralized management node 400 obtains a list of urgently needed base station signal blind area results in one scanning period, the core network resource is called to perform geographic positioning on the WiFi area in the list. The specific steps are as follows: the ePDG edge computing node 200 discovers that the WiFi area to be positioned has a user terminal performing VoWiFi call, and immediately reports the core network centralized management node 400, which immediately triggers the positioning process of the user terminal (the positioning process can be a conventional process of positioning the user terminal through the base station, which is not described in detail here), and the position of the user terminal performing VoWiFi call is positioned through the base station, so that the geographic position of the base station signal blind area is obtained. If there is no base station signal at the position of the user terminal, the user terminal is locked first, and then positioning is performed when the user terminal is online through the base station again. In this way, the edge position of the base station signal blind area can be positioned. The above-mentioned positioning method of the base station signal blind area only needs to position a specific user at a certain time to position the base station signal blind area, does not need real-time tracking, and has less impact on the user.

[0081] After the positioning is completed, the WiFi area is removed from the list to avoid repeated positioning.

[0082] After the positioning is completed, all positioning results can be output to a map to generate an urgently needed base station signal blind area report, and the operator can dispatch personnel to perform on-site verification and make adjustments to the base station to optimize the base station signal of the base station signal blind area.

[0083] In the embodiment of the application, the base station signal blind area can be identified only by enhancing the related nodes in the software, without consuming a large amount of manpower and material resources, and without waiting for user complaints and feedback to investigate the base station signal blind area. The base station signal blind area can be automatically collected and identified without sacrificing user experience to passively collect data. Moreover, the base station signal blind area that needs to be optimized urgently can be accurately identified and positioned in the embodiment of the application, so as to guarantee the user experience at a small cost. In addition, since the base station signal blind area can be automatically identified and positioned, the difficulty and workload of the base station operation and maintenance personnel can be reduced. Furthermore, in the embodiment of the application, the data collection is performed by each ePDG node 100, and the calculation and analysis are performed by the ePDG edge computing node 200, which is beneficial to improving the processing efficiency and reducing the cloud load.

[0084] Embodiment two

[0085] Please refer to Figure 6 , the application discloses a device, comprising:

[0086] a processor 30;

[0087] a memory 40, wherein the memory 40 stores executable instructions of the processor 30;

[0088] The processor 30 is configured to perform the method of identifying a base station signal blind area as described in Embodiment One via executing executable instructions.

[0089] Embodiment Three

[0090] The present application discloses a computer readable storage medium, which stores a program. The program is executed by a processor to implement the method of identifying a base station signal blind area as described in Embodiment One.

[0091] Embodiment Four

[0092] The present application discloses a computer program product or computer program, which includes computer instructions stored in a computer readable storage medium. A processor of an electronic device reads the computer instructions from the computer readable storage medium, and the processor executes the computer instructions to make the electronic device perform the method of identifying a base station signal blind area as described in Embodiment One.

[0093] It should be understood that, in the embodiments of the present application, the processor can be a central processing module (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor.

[0094] A person of ordinary skill in the art can understand that all or part of the above-mentioned embodiment methods can be completed by computer program instruction related hardware. The program can be stored in a computer readable storage medium, and the program can include the above-mentioned method embodiments when executed.

[0095] Embodiment Five

[0096] Please refer to Figure 3 and Figure 4The application discloses a system for identifying a base station signal blind area, which comprises an ePDG node 100, an ePDG edge computing node 200, a network node 300 and a core network centralized management node 400.

[0097] The ePDG node 100 is configured to collect VoWiFi data in real time.

[0098] In the method, the ePDG node 100 is only responsible for collecting VoWiFi data of users and does not perform calculation and analysis on the VoWiFi data, so that the influence of normal service functions of the ePDG node 100 is minimized.

[0099] In some embodiments, the VoWiFi data comprises an IP address of a user terminal, an IMSI and a VoWiFi call record.

[0100] When a user terminal accesses the ePDG node 100, the ePDG node 100 records the IP address and IMSI of the user terminal and reports them to the ePDG edge computing node 200 in real time.

[0101] Specifically, one IP address defines one WiFi area, that is, the IP address and the WiFi area have a one-to-one correspondence, and the IP addresses of all users in one WiFi area are the same. Due to the existence of NAT, the user terminals in the same WiFi coverage area are all shown as one IP address (i.e. a WiFi or gateway IP) after NAT conversion when connecting to the ePDG node 100, and only the ports used by each user terminal are different.

[0102] In the process of online of the user terminal, the IMSI of the user terminal is carried in the attachment process, so that the ePDG node 100 can collect the IMSI information of the user terminal and distinguish different users.

[0103] When the user terminal initiates a VoWiFi call, the ePDG node 100 reports the call information to the ePDG edge computing node 200 in real time. Specifically, the ePDG node 100 records the time of the VoWiFi call and reports it to the ePDG edge computing node 200 in real time. The ePDG edge computing node 200 can accumulate the call record of the user terminal and the call record in the corresponding WiFi area based on the received time of the VoWiFi call.

[0104] The ePDG edge computing node 200 is configured to: acquire VoWiFi data collected by the ePDG node 100 in real time; analyze the call demand information of each WiFi area in the current scanning period based on the VoWiFi data acquired in the current scanning period; determine whether each WiFi area needs positioning based on the call demand information of each WiFi area; and report the information of the WiFi area needing positioning to the core network centralized management node 400 if there is a WiFi area needing positioning.

[0105] The core network centralized management node 400 is configured to: call core network resources to position the WiFi area needing positioning.

[0106] In some embodiments, calling core network resources to position the WiFi area needing positioning comprises:

[0107] positioning the location of the user terminal in the WiFi area needing positioning for VoWiFi call by using a base station; or

[0108] if the user terminal in the WiFi area needing positioning is located in a position without base station signal, positioning the user terminal by using a base station when the user terminal is online again through the base station.

[0109] Specifically, after the core network centralized management node 400 obtains a list of base station signal blind areas that need to be solved urgently in one scanning period, the core network centralized management node 400 calls core network resources to position the WiFi area in the list. The specific steps are as follows: the ePDG edge computing node 200 discovers that the WiFi area needing positioning has a user terminal that is making a VoWiFi call, and immediately reports to the core network centralized management node 400, which triggers the positioning process of the user terminal immediately (the positioning process can be a conventional process of positioning the user terminal through a base station, which is not described in detail here). The position of the user terminal for VoWiFi call is positioned by using a base station, so that the geographical position of the base station signal blind area is obtained. If there is no base station signal at the position of the user terminal, the user terminal is locked first, and then positioned when the user terminal is online again through the base station. In this way, the edge position of the base station signal blind area can be positioned. The above-mentioned positioning method of the base station signal blind area only needs to position a specific user at some time, and the base station signal blind area can be positioned without real-time tracking.

[0110] Specifically, after the positioning of the WiFi area needing positioning is completed, the core network centralized management node 400 deletes the WiFi area for which the positioning is completed from the WiFi area list, and the core network centralized management node 400 sends the updated WiFi area list to the ePDG node 100 for VoWiFi data collection of the WiFi areas in the WiFi area list.

[0111] Specifically, after the positioning is completed, all the positioning results can be output to the map to generate a report of the base station signal blind area that needs to be solved urgently, and the operator can send personnel to the site for verification and make adjustments to the base station to optimize the base station signal of the base station signal blind area according to the report.

[0112] Specifically, the core network centralized management node 400 is further configured to: issue a scanning period to the ePDG node 100 and the ePDG edge computing node 200, issue ePDG node management information to the ePDG node 100, and issue algorithm strategy information to the ePDG edge computing node 200. The ePDG node management information includes: instruction information that the ePDG node 100 needs to perform VoWiFi data collection, and WiFi areas that the ePDG node 100 needs to scan. Through the issue of the above management information, all ePDG nodes 100 to be data collected and the WiFi areas of each ePDG node 100 in the current scanning can be selected.

[0113] The network node 300 is configured to be responsible for information transmission between the ePDG node 100, the ePDG edge computing node 200, and the core network centralized management node 400.

[0114] Please combine Figure 4 , specifically, the scanning period issued by the core network centralized management node 400 is issued to the ePDG node 100 and the ePDG edge computing node 200 through the network node 300. The ePDG node management information issued by the core network centralized management node 400 is issued to the ePDG node 100 through the network node 300. The algorithm strategy information issued by the core network centralized management node 400 is issued to the ePDG edge computing node 200 through the network node 300. The VoWiFi data collected by the ePDG node 100 is sent to the ePDG edge computing node 200 through the network node 300. The ePDG edge computing node 200 reports the analysis result (including the information of the WiFi area that needs to be positioned) to the core network centralized management node 400 through the network node 300.

[0115] In this application, by using the characteristics that VoWiFi calls mainly occur in scenarios where the base station signal is weak or there is no base station signal, the ePDG node 100 collects the data of VoWiFi calls, and through the calculation of the ePDG edge computing node 200, the base station signal blind area that needs to be urgently removed is calculated and analyzed, and the result is uploaded to the core network centralized management node 400. The core network centralized management node 400 aggregates the data and calls the conventional user terminal positioning resources to position to a specific geographic location, and then obtains a comprehensive and accurate panoramic map of the base station signal blind area that needs to be solved urgently, for the operator to further optimize the network environment.

[0116] The application only needs to enhance the relevant nodes in software to realize the identification of the base station signal blind area, does not need to consume a large amount of manpower and material resources, and does not need to wait for user complaints and feedback to check the base station signal blind area, can automatically collect data to identify the base station signal blind area, and does not need to sacrifice the user experience to passively collect data. Moreover, the application can accurately identify and locate the base station signal blind area in urgent need of optimization, and realize the guarantee of user experience at a small cost. In addition, since the base station signal blind area can be automatically identified and located, the operation and maintenance difficulty and workload of the base station operation and maintenance personnel can be reduced. Furthermore, in the embodiments of the application, the data collection is responsible by each ePDG node 100, and the calculation and analysis are responsible by the ePDG edge computing node 200, which is beneficial to improve the processing efficiency and reduce the cloud load.

[0117] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0118] The above only discloses the preferred examples of the application, and cannot limit the scope of the right of the application, so the equivalent changes made according to the claims of the application all belong to the scope covered by the application.

Claims

1. A method for identifying base station signal blind spots, characterized in that, The method is implemented based on ePDG edge computing nodes and includes: Real-time acquisition of VoWiFi data collected by ePDG nodes; Based on the VoWiFi data obtained during the current scanning period, the call demand information of each WiFi area during the current scanning period is analyzed. Based on the call demand information of each WiFi area, determine whether each WiFi area needs location services. If a WiFi area needs to be located, the information of the WiFi area to be located is reported to the core network centralized management node.

2. The method for identifying base station signal blind spots according to claim 1, characterized in that, The VoWiFi data includes the user terminal's IP address, IMSI, and VoWiFi call records; An IP address defines a WiFi area.

3. The method for identifying base station signal blind spots according to claim 1, characterized in that, The call demand information is obtained by analyzing the number of users accessing the WiFi area during the current scanning period and the total number of VoWiFi call records.

4. A device, characterized in that, include: processor; A memory in which executable instructions of the processor are stored; The processor is configured to perform the method for identifying base station signal blind spots as described in any one of claims 1 to 3 by executing the executable instructions.

5. A computer-readable storage medium having a program stored thereon, characterized in that, When the program is executed by the processor, it implements the method for identifying base station signal blind spots as described in any one of claims 1 to 3.

6. A system for identifying base station signal blind spots, characterized in that, The system includes ePDG nodes, ePDG edge computing nodes, network nodes, and core network centralized management nodes; The ePDG node is configured to collect VoWiFi data in real time; The ePDG edge computing node is configured as follows: Real-time acquisition of VoWiFi data collected by the ePDG node; Based on the VoWiFi data obtained during the current scanning period, the call demand information of each WiFi area during the current scanning period is analyzed. Based on the call demand information of each WiFi area, determine whether each WiFi area needs location services. If a WiFi area needs to be located, the information of the WiFi area needs to be located is reported to the core network centralized management node. The core network centralized management node is configured to: call core network resources to locate the WiFi area that needs to be located; The network node is configured to be responsible for information transmission between the ePDG node, the ePDG edge computing node, and the core network centralized management node.

7. The system for identifying base station signal blind spots according to claim 6, characterized in that, The VoWiFi data includes the user terminal's IP address, IMSI, and VoWiFi call records, with one IP address defining one WiFi area; The real-time collection of VoWiFi data includes: When a user terminal connects to the ePDG node, the ePDG node obtains the user terminal's IP address and IMSI. When the user terminal initiates a VoWiFi call, the ePDG node records the time of the VoWiFi call.

8. The system for identifying base station signal blind spots according to claim 6, characterized in that, The step of calling core network resources to locate the WiFi area that needs to be located includes: The location of the user terminal conducting VoWiFi calls within the WiFi area to be located is determined using a base station; or... If there is no base station signal at the location of the user terminal in the WiFi area to be located, the user terminal will be located using the base station when it reconnects to the network.

9. The system for identifying base station signal blind spots according to claim 6, characterized in that, After locating the WiFi area that needs to be located, the core network centralized management node deletes the located WiFi area from the WiFi area list. The core network centralized management node then sends the updated WiFi area list to the ePDG node to collect VoWiFi data from the WiFi areas in the WiFi area list.

10. The system for identifying base station signal blind spots according to claim 6, characterized in that, The core network centralized management node is also configured to: send scanning cycles to the ePDG node and the ePDG edge computing node, send ePDG node management information to the ePDG node, and send algorithm strategy information to the ePDG edge computing node; The ePDG node management information includes: instructions for the ePDG node to perform VoWiFi data collection, and the WiFi areas that the ePDG node needs to scan.

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