KR20230128990A - Server, method and computer program for monitoring wireless quality about 5g communal network - Google Patents

Abstract

A server for monitoring a wireless quality for a 5G joint network between a first base station providing the 5G joint network and at least one second base station using the 5G joint network, includes: a first calculation part calculating first statistical data including an average number of user terminals and average traffic usage per public land mobile network (PLMN) based on first access data collected from the second base station over a predetermined period of time; a second calculation part calculating second statistical data including a real time number of user terminals and real time traffic usage per PLMN based on second access data collected in real time from the second base station; a joint network monitoring index deriving part deriving a joint network monitoring index based on the first and second statistical data; and an access control part controlling terminal access per PLMN to the 5G joint network based on the joint network monitoring index. Therefore, the present invention is capable of minimizing a deterioration in the wireless quality of a user terminal using the 5G joint network.

Description

Server, method and computer program for monitoring wireless quality for 5G common network {SERVER, METHOD AND COMPUTER PROGRAM FOR MONITORING WIRELESS QUALITY ABOUT 5G COMMUNAL NETWORK}

The present invention relates to a server, method, and computer program for monitoring radio quality for a 5G public network.

Mobile communication operators are investing heavily in expanding the number of base station stations to provide better quality wireless network services than their competitors and to secure wider coverage.

In the case of the recently commercialized 5G equipment, since it uses a higher frequency band than the existing 3G and 4G equipment, the coverage that can be handled per base station equipment is reduced, and the number of base station equipment to be invested increases.

As a result, as the number of base station equipment for securing coverage increases, construction costs and maintenance costs of base station equipment also increase.

Since it is costly for each mobile communication service provider to build a separate base station equipment in an area where the base station equipment usage rate is not high, in the case of areas where there are not many subscribers such as rural areas or mountainous areas, the construction of base station equipment is not smooth, resulting in poor coverage. There was a situation where the acquisition was delayed.

In order to solve this problem, discussions are underway on the establishment of a 5G common network in which domestic mobile communication operators jointly use equipment of a specific operator in rural areas where 5G coverage of mobile communication operators has not yet been fully established.

In other words, mobile telecommunication operators are dividing the regions by mobile telecommunication operators for rural areas where 5G networks have not yet been established, and when one operator builds equipment, other operators use it in common.

Since the establishment of a 5G shared network requires different operators to share equipment, standards for monitoring the 5G shared network are required along with the standards necessary for establishing a 5G shared network.

Korean Registered Patent Publication No. 10-0856647 (registered on August 28, 2008)

The present invention is to solve the above-mentioned problems of the prior art, and the present invention is to monitor the radio quality of a 5G common network between a first base station providing a 5G common network and at least one second base station using the 5G common network. do.

Specifically, the present invention derives a common network monitoring index based on statistical data for each PLMN (Public Land Mobile Network) of at least one second base station using the 5G public network, and based on the common network monitoring index, It is intended to control terminal access for each PLMN.

However, the technical problem to be achieved by the present embodiment is not limited to the technical problems described above, and other technical problems may exist.

As a technical means for achieving the above-mentioned technical problem, radio communication for the 5G public network between a first base station providing the 5G common network according to the first aspect of the present invention and at least one second base station using the 5G common network. The server for monitoring quality calculates first statistical data including the average number of user terminals and average traffic usage for each PLMN (Public Land Mobile Network) based on the first access data for a predetermined period collected from the second base station a first calculation unit that does; a second calculation unit for calculating second statistical data including the number of real-time user terminals and real-time traffic usage for each PLMN based on the second access data collected in real time from the second base station; a public network monitoring index derivation unit for deriving a public network monitoring index based on the first statistical data and the second statistical data; and an access control unit controlling terminal access for each PLMN to the 5G public network based on the common network monitoring index.

According to a second aspect of the present invention, a method for monitoring radio quality of a 5G common network between a first base station providing a 5G common network and at least one second base station using the 5G common network is collected from the second base station. calculating first statistical data including an average number of user terminals and average traffic usage for each public land mobile network (PLMN) based on first access data for a predetermined period of time; calculating second statistical data including real-time traffic usage and number of user terminals for each PLMN based on second access data collected in real time from the second base station; deriving a common network monitoring index based on the first statistical data and the second statistical data; and controlling access of a terminal for each PLMN to the 5G public network based on the common network monitoring indicator.

Computer readable sequence comprising a sequence of instructions for monitoring radio quality of the 5G public network between a first base station providing the 5G public network and at least one second base station using the 5G public network according to a third aspect of the present invention When the computer program stored on a recording medium is executed by a computing device, the average number of user terminals and average traffic usage per PLMN (Public Land Mobile Network) are based on the first access data for a predetermined period collected from the second base station. Calculate first statistical data including, based on the second access data collected in real time from the second base station, calculate second statistical data including the real-time number of user terminals and real-time traffic usage for each PLMN, and the first A sequence of instructions for deriving a common network monitoring index based on statistical data and the second statistical data and controlling terminal access for each PLMN to the 5G public network based on the common network monitoring index.

The above-described means for solving the problems is only illustrative and should not be construed as limiting the present invention. In addition to the exemplary embodiments described above, there may be additional embodiments described in the drawings and detailed description.

According to any one of the above-described problem solving means of the present invention, the present invention provides radio quality for a 5G common network between a first base station providing a 5G common network and at least one second base station using the 5G common network. can be monitored

Specifically, the present invention derives a common network monitoring index based on statistical data for each PLMN (Public Land Mobile Network) of at least one second base station using the 5G public network, and based on the common network monitoring index, It is possible to control terminal access for each PLMN.

Through this, the present invention can minimize radio quality degradation of the user terminal of the second base station using the 5G common network.

1a to 1c are diagrams for explaining the configuration of an existing 5G public network.
2 is a block diagram of a wireless quality monitoring server according to an embodiment of the present invention.
3 is a flowchart illustrating a method of monitoring radio quality for a 5G common network according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily practice the present invention with reference to the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is said to be "connected" to another part, this includes not only the case where it is "directly connected" but also the case where it is "electrically connected" with another element interposed therebetween. . In addition, when a certain component is said to "include", this means that it may further include other components without excluding other components unless otherwise stated.

In this specification, a "unit" includes a unit realized by hardware, a unit realized by software, and a unit realized using both. Further, one unit may be realized using two or more hardware, and two or more units may be realized by one hardware.

In this specification, some of the operations or functions described as being performed by a terminal or device may be performed instead by a server connected to the terminal or device. Likewise, some of the operations or functions described as being performed by the server may also be performed in a terminal or device connected to the corresponding server.

Hereinafter, specific details for the implementation of the present invention will be described with reference to the accompanying configuration diagram or process flow chart.

For a moment, the existing 5G public network configuration will be described with reference to FIGS. 1A to 1C. 1A is a diagram of a 4G network for use of a 5G common network between mobile communication operators, FIG. 1B is a diagram illustrating a 5G network related to a 5G common network, and FIG. 1C is a diagram showing a handover situation in a 5G common network. am.

Referring to FIG. 1A, the main contents negotiated between mobile communication operators in relation to the configuration of a 5G common network are as follows.

A mobile communication service provider that provides 5G equipment is defined as a 'provider', and a mobile communication service provider that uses 5G equipment is defined as a 'user'.

At this time, the 5G base station of the provider is divided into a single cell and a shared cell according to its role, and the 4G base station of the user is divided into an entry cell and a single cell according to its role.

Upon handover from the user company network 110 to the provider network 100, the first user terminal 120 performs a handover process from the user company's entry cell to the provider's common cell.

The provider's 5G equipment is divided into single cell and shared cell, but the 4G cell that is the anchor of the 5G equipment is divided into single cell, shared cell, and border cell, and the 4G border cell acts as an anchor for the 5G shared cell. .

Upon handover from the provider network 100 to the user network 110, the second user terminal 130 located in the 5G common cell using the provider's 4G border cell as an anchor is handed over to the user network 110. do the process That is, when the serving cell RSRP is less than -70 dBm and the target cell RSRP is more than -104 dBm, the handover process is performed.

The second user terminal 130 connected to the 5G common cell through the provider's 4G common cell performs handover to the user's single cell when the RSRP (Reference Signals Received Power) of the 4G co-site base station of the corresponding common cell is -104 dBm or higher. do not perform the process of That is, if the serving cell RSRP is less than -104 dBm and the target cell RSRP is more than -104 dBm, the handover process is not performed.

Since the 5G common network targets 5G base stations using the NSA (None Stand Alone) method, handover is performed through the 4G network used by the 5G base station as an anchor.

Referring to FIGS. 1A and 1B together, it can be confirmed that the provider boundary cell, the provider common cell, and the entry cell of the user of the 4G base station are the 5G common cell 140 based on 5G.

On the other hand, what is important for building a 5G common network is that the user's subscriber terminal connected to the provider's base station should be at a level that does not cause inconvenience in using the wireless service.

The reason why 'RSRP -104dBm', which can be seen as a weak electric field, was set as the standard among the contents of agreement between mobile communication operators is to prevent repeated handovers. The quality of use may be degraded while continuously handing over between cells of the user.

However, since the 'RSRP -104dBm' criterion allows the user's subscriber terminal to continue to connect to the provider's 5G common cell 140 even if the radio signal of the user's network 110 is weak, another wireless quality deterioration factor is It can be.

In order to solve this problem, a rule is needed to forcibly send the subscriber terminal of the user who has entered the border cell area of the provider to the user's single cell.

In the present invention, it is possible to suggest criteria for effectively constructing a 5G common cell/single cell of a provider by reflecting the above wireless quality degradation and negotiations between mobile communication operators.

First of all, when designing a common network for NSA-type 5G equipment, the design should be based on 4G equipment, which is the anchor of 5G equipment.

Although the provider single cell of the provider network 100 and the user network 110 are not adjacent to each other in FIG. 1A, handover occurs even if the provider single cell and the user network 110 are not adjacent to each other in an actual construction environment. It happens a lot. For example, in the case of a base station built on a high mountain, since signals from the base station can reach very far, handover from the base station may occur even at a base station that is quite far away.

Referring to FIGS. 1A and 1C , among the agreements between mobile communication operators, 'a handover process of a second user terminal 130 located in a 5G common cell using a 4G border cell of a provider as an anchor to a user network 110' to perform.' In the case of , handover is performed in the manner of Case 1 (150).

However, as in Case 2 (160), in the case of direct handover from the public network of the provider to the network of the user, the call is maintained until the common network becomes a weak field. Occurs.

In order to solve this problem, the present invention can establish a 5G public network such that a provider's boundary network is provided between the provider's public network and the user network.

The present invention calculates the number of handovers from a common cell of a provider to a single cell of a user among 4G base stations serving as an anchor of a 5G public network, and based on the calculated number of handovers, the A border cell (4G border cell) of a provider can be set so that handover does not occur.

Specifically, the present invention analyzes information on the target cell (cell of the user) where handover has occurred in the common cell of the provider, performs a primary handover from the common cell of the provider to the boundary network of the provider, and then converts the second handover to the single cell of the user. The network can be designed for secondary handover.

Through this, the present invention can minimize radio quality degradation of subscriber terminals of users when establishing a 5G common network.

2 is a block diagram of a wireless quality monitoring server 200 according to an embodiment of the present invention.

Referring to FIG. 2 , the wireless quality monitoring server 200 includes a collection unit 210, a first calculation unit 220, a second calculation unit 230, a common network monitoring indicator derivation unit 240, and an analysis unit 250. ) and a connection control unit 260. However, the wireless quality monitoring server 200 shown in FIG. 2 is only one implementation example of the present invention, and various modifications are possible based on the components shown in FIG. 2 .

Hereinafter, a base station of a provider providing a 5G common network through 5G common network equipment is referred to as a first base station, and a base station of at least one user using the 5G common network is referred to as a second base station.

A border network of the first base station may be established between the 5G common network of the first base station and the private network of the second base station so that handover does not occur from the 5G public network of the first base station to the private network of the second base station.

When the 5G shared network service is performed after the first base station's boundary network is designed, a different monitoring standard is required than when the existing mobile communication service provider operates a single device.

Since the 5G public network equipment installed in the 5G common network accommodates user terminals subscribed to the second base station in addition to the first base station, in order to monitor the common network, the access ratio of the second base station to the user terminals connected to the 5G common network Need to check.

This prevents a situation in which a user terminal subscribed to the second base station through the 5G common network equipment cannot receive wireless network service even when the wireless network cannot be used due to an error in the network equipment of a specific second base station around the 5G common network It is for

In addition, when a failure occurs in the network equipment of a specific second base station near the 5G public network, calls are directed to the 5G common network equipment of the first base station. This is to prevent it from going over to an unusable state.

To this end, the collection unit 210 may collect first access data for a predetermined period from the second base station. For example, the collecting unit 210 may collect first access data for a user terminal (subscriber terminal of the second base station) connected to the 5G common network for each time zone of a specific period from the second base station.

The first calculator 220 generates first statistical data including the average number of user terminals and average traffic usage for each PLMN (Public Land Mobile Network) based on the first access data for a predetermined period collected from the second base station. can be calculated

For example, the first calculation unit 220 may extract the number of user terminals and traffic usage for each PLMN from the collected first access data for a predetermined period. In addition, the first calculation unit 220 may calculate an average value for the number of user terminals for each PLMN and an average value for traffic usage for a preset period based on the extracted number of user terminals and traffic usage for each PLMN.

The collecting unit 210 may collect second access data from the second base station in real time.

The second calculation unit 230 may calculate second statistical data including the real-time number of user terminals and real-time traffic usage for each PLMN based on the second access data collected in real time from the second base station.

The public network monitoring index derivation unit 240 may derive a public network monitoring index based on the first statistical data and the second statistical data. Here, the common network monitoring index may be information obtained by indexing a change in subscriber distribution of the second base station using the 5G common network.

For example, the average number of user terminals of PLMN A included in the first statistical data is UE_avg_PLMN_A, the average traffic usage is Traffic_avg_PLMN_A, the real-time number of user terminals of PLMN A included in the second statistical data is UE_PLMN_A_current, and the real-time traffic usage is Traffic_PLMN_A_current, the number of user terminals for PLMN A is , and the traffic usage for PLMN A is am.

The public network monitoring index derivation unit 240 calculates the standard deviation and average for each of the number of user terminals and traffic usage for each PLMN based on the first statistical data and the second statistical data, and uses the calculated standard deviation and average Common network monitoring indicators can be derived. Here, the public network monitoring index may include a user terminal index for each PLMN and a traffic usage index.

The public network monitoring index derivation unit 240 derives a user terminal index based on the standard deviation and average of the number of user terminals for each PLMN, and derives a traffic usage index using the standard deviation and average for each traffic usage per PLMN. can do. Here, the user terminal index may be derived through [Equation 1], and the traffic usage index may be derived through [Equation 2].

[Equation 1]

User terminal index =

[Equation 2]

Traffic usage metric =

The public network monitoring index is an index indicating how much the user terminal index and traffic usage index for each PLMN differ from the same time zone for a preset period in real time.

The access control unit 260 may control terminal access for each PLMN to the 5G common network based on the common network monitoring index.

If the user terminal index and traffic usage index at the current time are the same as usual, it is expressed as '0', and if the number of user terminals and traffic usage in a specific PLMN rapidly increase, the value of the common network monitoring index itself increases, so the access control unit 260 ) may determine that an issue (failure) has occurred in equipment of a specific second base station when the common network monitoring index exceeds a preset standard.

The analyzer 250 may analyze access pattern information for each PLMN connected to the 5G public network based on the first statistical data and the second statistical data.

The access control unit 260 extracts the second base station in which overload occurs based on the common network monitoring index and the access pattern information for each PLMN, and reduces the coverage of the second base station to allow terminal access to the 5G common network through the second base station. can limit

For example, if the access ratio of a specific PLMN is not high, but the access pattern information for each PLMN exceeds a preset threshold and the public network monitoring index is high, the access control unit 260 determines the output power of the second base station in which overload occurs. The second base station may be requested to set an attenuation command.

When the ratio of terminal access to the PLMN managed by the specific second base station exceeds a preset threshold due to an equipment issue of the specific second base station, the access control unit 260 determines the parameters for access to the 5G shared network to the specific second base station. You can request to unset.

The access control unit 260, when a performance failure due to overload is expected in the 5G equipment of the first base station while the second base station is processing the setting release of the connection parameters for access to the 5G common network, provides the first base station with a specific 2 An access restriction policy for the PLMN managed by the base station may be applied.

In this way, the present invention can supplement the base station state monitoring method based on the existing statistics collection method when operating a public network by using the public network monitoring indicator.

In addition, the present invention can maintain the wireless quality service of the 5G public network by using a monitoring rule for monitoring public network equipment combining a public network monitoring indicator and access pattern information for each PLMN.

On the other hand, if you are skilled in the art, the collection unit 210, the first calculation unit 220, the second calculation unit 230, the public network monitoring indicator derivation unit 240, the analysis unit 250, and the connection control unit 260 each It will be fully understood that they may be implemented separately or integrated with one or more of them.

3 is a flowchart illustrating a method of monitoring radio quality for a 5G common network according to an embodiment of the present invention.

Referring to FIG. 3 , in step S301, the wireless quality monitoring server 200 may collect first access data from at least one second base station using the 5G public network provided by the first base station for a predetermined period.

In step S303, the wireless quality monitoring server 200 may calculate first statistical data including an average number of user terminals and average traffic usage for each PLMN based on the collected first access data for a predetermined period.

In step S305, the wireless quality monitoring server 200 may calculate second statistical data including the real-time number of user terminals and real-time traffic usage for each PLMN based on the second connection data collected in real time from the second base station.

In step S307, the wireless quality monitoring server 200 may derive a public network monitoring index based on the first statistical data and the second statistical data.

In step S309, the wireless quality monitoring server 200 may control terminal access for each PLMN to the 5G public network based on the public network monitoring index.

In the above description, steps S301 to S309 may be further divided into additional steps or combined into fewer steps, depending on the implementation of the present invention. Also, some steps may be omitted if necessary, and the order of steps may be changed.

An embodiment of the present invention may be implemented in the form of a recording medium including instructions executable by a computer, such as program modules executed by a computer. Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. Also, computer readable media may include all computer storage media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data.

The above description of the present invention is for illustrative purposes, and those skilled in the art can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the claims to be described later rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts thereof should be construed as being included in the scope of the present invention. .

200: wireless quality monitoring server
210: collection unit
220: first calculation unit
230: second calculation unit
240: common network monitoring indicator derivation unit
250: analysis unit
260: connection control unit

Claims (17)

In the server for monitoring the radio quality of the 5G common network between a first base station providing a 5G common network and at least one second base station using the 5G common network,
A first calculation unit for calculating first statistical data including an average number of user terminals and average traffic usage for each public land mobile network (PLMN) based on first access data for a predetermined period collected from the second base station;
a second calculation unit for calculating second statistical data including the number of real-time user terminals and real-time traffic usage for each PLMN based on the second access data collected in real time from the second base station;
a public network monitoring index derivation unit for deriving a public network monitoring index based on the first statistical data and the second statistical data; and
An access controller for controlling terminal access for each PLMN to the 5G public network based on the common network monitoring index
To include, a wireless quality monitoring server.
According to claim 1,
The wireless quality monitoring server, wherein the boundary network of the first base station is provided between the 5G public network of the first base station and the private network of the second base station.
According to claim 2,
The wireless quality monitoring server, wherein the boundary network of the first base station is constructed so that handover does not occur from the 5G common network of the first base station to a private network of the second base station.
According to claim 1,
The common network monitoring indicator derivation unit calculates a standard deviation and average for the number of user terminals and traffic usage for each PLMN based on the first statistical data and the second statistical data, and uses the calculated standard deviation and average The wireless quality monitoring server to derive the public network monitoring index by doing so.
According to claim 1,
The wireless quality monitoring server further comprising an analyzer configured to analyze access pattern information for each PLMN connected to the 5G public network based on the first statistical data and the second statistical data.
According to claim 4,
The access control unit extracts a second base station in which an overload occurs based on the common network monitoring index and the access pattern information for each PLMN, and reduces the coverage of the second base station to the 5G common network through the second base station. A wireless quality monitoring server that limits access to a terminal of.
According to claim 6,
The access control unit requests the specific second base station to release the parameter for access to the 5G common network when the proportion of terminal access to the PLMN managed by the specific second base station exceeds a preset threshold, Wireless Quality Monitoring Server.
According to claim 7,
The access control unit, when a performance failure due to overload is expected in the 5G equipment of the first base station while the specific second base station processes the setting release of access parameters for access to the 5G common network, to the first base station The wireless quality monitoring server to apply the access restriction policy for the PLMN managed by the specific second base station.
A method for monitoring radio quality of the 5G common network between a first base station providing the 5G common network and at least one second base station using the 5G common network,
Calculating first statistical data including an average number of user terminals and average traffic usage for each public land mobile network (PLMN) based on first access data for a predetermined period collected from the second base station;
calculating second statistical data including real-time traffic usage and number of user terminals for each PLMN based on second access data collected in real time from the second base station;
deriving a common network monitoring index based on the first statistical data and the second statistical data; and
Controlling terminal access for each PLMN to the 5G public network based on the common network monitoring index
To include, wireless quality monitoring method.
According to claim 9,
The wireless quality monitoring method of claim 1, wherein a border network of the first base station is provided between the 5G common network of the first base station and the private network of the second base station.
According to claim 10,
Wherein the boundary network of the first base station is constructed so that handover does not occur from the 5G public network of the first base station to a private network of the second base station.
According to claim 9,
The step of deriving the common network monitoring index is
Based on the first statistical data and the second statistical data, a standard deviation and an average for the number of user terminals and traffic usage for each PLMN are calculated, and the public network monitoring index is calculated using the calculated standard deviation and average A wireless quality monitoring method comprising the step of deriving.
According to claim 9,
Further comprising analyzing access pattern information for each PLMN connected to the 5G public network based on the first statistical data and the second statistical data.
According to claim 12,
The step of controlling terminal access for each PLMN to the 5G common network
Based on the public network monitoring index and the access pattern information for each PLMN, a second base station with overload is extracted, and the coverage of the second base station is reduced to allow terminal access to the 5G common network through the second base station. A wireless quality monitoring method comprising the step of limiting.
15. The method of claim 14,
The step of controlling terminal access for each PLMN to the 5G common network
When the proportion of terminal access to the PLMN managed by the specific second base station exceeds a preset threshold, requesting the specific second base station to release the parameter for access to the 5G common network, How to monitor wireless quality.
According to claim 15,
The step of controlling terminal access for each PLMN to the 5G common network
While the second specific base station processes the setting release of access parameters for access to the 5G common network, when performance failure due to overload is expected in 5G equipment of the first base station, the specific second base station A radio quality monitoring method comprising the step of applying an access restriction policy to a PLMN managed by a base station.
A computer program stored on a computer readable recording medium including a sequence of instructions for monitoring radio quality of the 5G public network between a first base station providing the 5G public network and at least one second base station using the 5G public network in
When the computer program is executed by a computing device,
Based on the first access data for a predetermined period collected from the second base station, first statistical data including an average number of user terminals and average traffic usage for each Public Land Mobile Network (PLMN) is calculated,
Based on the second access data collected in real time from the second base station, second statistical data including the number of real-time user terminals and real-time traffic usage for each PLMN is calculated;
Deriving a common network monitoring index based on the first statistical data and the second statistical data;
A computer program stored in a computer readable recording medium comprising a sequence of instructions for controlling terminal access for each PLMN to the 5G public network based on the public network monitoring index.

Images