JP2016119516A - Radio communication network management method and system thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve problems in conventional technique in which a higher communication charge is set in a busy base station and a user selects whether to make a communication or not, and in which, when the communication is not selected, the chance of communication is totally lost; even when the communication is selected by paying a high communication charge, due to a background communication by a terminal unrecognizable for a user, a high communication charge is imposed to the user.SOLUTION: In a busy radio base station, basically the communication is controlled to a low speed communication without shutting off the communication to reduce the communication amount. The radio communication network monitors the busy state at the radio base station, and when determining as busy, identifies an objective user to make an instruction to limit the bandwidth. When receiving a request for high speed communication by paying an additional communication charge from the user, the bandwidth limitation is removed.SELECTED DRAWING: Figure 1A

Description

  The present invention relates to a radio base station state management device that analyzes a congestion situation of a base station and gives instructions such as band limitation, a radio communication system that can control a communication band for each user, a terminal that displays information to a user, and the like The present invention relates to a management method that enables variable charging according to the status of a base station.

  With the spread of smartphones, traffic flowing through mobile networks is increasing. In addition, due to the diversification of applications used on smartphones, the variation is not uniform, and changes greatly depending not only on the day of the week, time zone, and place, but also on the weather and the presence of events.

  Telecom operators are forced to anticipate these factors and expand their facilities. At present, especially in the vicinity of stations where people gather, communication quality has deteriorated due to traffic concentration, such as being unable to connect to base stations and slow communication speeds. No measures have been taken.

  In addition, it is not realistic to expand the facility to meet the expected traffic maximum value because it takes a huge amount of money.

  On the other hand, it is possible to suppress traffic on the user's terminal side or to offload to the public wireless LAN, but there are cases where the communication fee is a fixed amount, and communication is refrained at mixed base stations, or public wireless There is no positive basis for switching to LAN.

JP 2012-151803 A

  As a means for solving the above-described deterioration of communication quality due to traffic concentration, in the known example shown in Patent Document 1, the communication fee at a congested base station is changed according to the congestion state, and the user sets an upper limit of the communication fee. As a result, a base station with a communication charge equal to or higher than the set value described above cannot be used for communication, and a method for suppressing traffic in a congested base station based on the user's intention has been proposed.

  However, the management system disclosed in Patent Document 1 has the following two problems.

  The first problem is that, when communication is not performed, low traffic such as e-mail or background communication of a terminal that the user is not aware of cannot be performed, and packets represented by VoLTE (Voice over. LTE) When a voice call is made via a communication network, not only a call can be made but also an incoming call cannot be made. In this situation, the opportunity for communication is completely lost.

  The second problem is a problem for a user who performs communication by paying a large communication fee in a congested base station. For such users, if the application running on the smartphone regularly communicates in the background, there is a possibility that a large communication fee is charged where the user does not intend. That is.

  The present application includes a plurality of means for solving the above-mentioned problems. An example of the means is as follows.

  The present invention has been made in view of the above problems, and solves the above problems by providing means for realizing a charge plan that, in principle, a low-speed communication is performed in a congested base station.

  Ascertain the congestion status of the base station in real time, and if the radio base station is congested, notify the radio terminal of the user who is located in the base station and subscribes to the specified rate plan, and By automatically narrowing the bandwidth that can be used to the minimum, communication is continued even if the user is not conscious of it, but the communication is continued and the communication amount can be suppressed because the communication speed is low.

  As an additional feature, it is possible to equalize the amount of traffic at a plurality of surrounding base stations by guiding the congestion status of surrounding base stations to the user and encouraging movement and switching of base stations. Become.

  Another additional feature is that high-speed communication is set so that the charge is high, and if you want to communicate even if the charge is high, the user can apply to limit bandwidth in real time. By enabling the cancellation, it is possible to provide the user with a means of high-speed communication and to secure the profit of the communication carrier.

  Another aspect of the present invention is a management system for managing a wireless communication network. This wireless communication network includes a user wireless terminal, a wireless base station with which the user wireless terminal communicates, a core network to which the wireless base station is connected, a DPI (Deep Packet Inspection) device that collects packet information on the core network, a user wireless A user management DB that manages a subscription fee plan of a terminal, a charging system that manages a charge generated to a user wireless terminal, a wireless base station state management device connected to a DPI device, and a communication bandwidth limit for each user wireless terminal; This is a wireless communication network capable of performing additional charging. The radio base station state management device determines a congestion level for each radio base station, extracts a radio base station having a congestion level equal to or higher than a predetermined level, and a user radio terminal residing in the specified base station The second process of extracting the user radio terminal, the third process of extracting the user radio terminal corresponding to the first condition among the user radio terminals located in the area, the user radio terminal corresponding to the first condition is the second condition A function of performing a fourth process for detecting whether or not the above is satisfied. Then, based on whether or not the second condition is met, whether or not to perform bandwidth limitation without additional charging for the user wireless terminal satisfying the first condition or whether to perform bandwidth limitation without performing additional charging Make a selection decision. The functions of the above-mentioned radio base station state management apparatus can be realized by software on a computer or server. Alternatively, dedicated hardware may be used. These functions may be realized not only physically by a single computer but also by a plurality of processing devices, storage devices, and input / output devices that are connected by a network and located at remote locations. The same applies to the following embodiments.

  Another aspect of the present invention is a management method for managing a wireless communication network. The wireless communication network includes a plurality of user wireless terminals, a wireless base station with which the user wireless terminals communicate, a core network to which the wireless base stations are connected, a DPI device that collects packet information on the core network, and a user wireless terminal subscription fee Connected to user management DB for managing plans, billing system for managing charges to user wireless terminals, DPI device, PCRF (Policy and Charging Rules Function), user management DB, and billing system A wireless communication network including a wireless base station state management device and capable of limiting a communication band for each user wireless terminal. The radio base station state management device determines congestion status for each radio base station based on information obtained from the DPI device and the user management DB, identifies the radio base station having a congestion level equal to or higher than a predetermined level, and identifies the identified base A user wireless terminal located in the station is specified, and a user wireless terminal to which a predetermined flag is added is extracted from the user wireless terminals located in the area. Then, the radio base station state management device transmits a notification inquiring whether or not band limitation is possible to the user radio terminal to which the predetermined flag is added, and the user radio to which the predetermined flag is added based on a response to the notification The terminal is controlled by selecting whether to limit the bandwidth without performing additional charging or whether to perform additional charging and not limiting the bandwidth.

  Another aspect of the present invention provides a plurality of user radio terminals, a radio base station with which the user radio terminals communicate, a core network to which the radio base stations are connected, and the user radio terminal installed between a core network and an Internet network PCEF (Policy and Charging Enforcement Function) that can limit the communication bandwidth every time, PCRF that instructs the PCEF to limit the communication bandwidth, and DPI device that collects packets on the core network , A user management DB that manages a subscription fee plan of a user wireless terminal, a charging system that manages a generated charge for each user wireless terminal, a DPI device, a PCRF, a user management DB, and a wireless base station state management device connected to the charging system Is provided.

  The radio base station state management device determines a congestion status for each radio base station, identifies a radio base station having a congestion level equal to or higher than a predetermined level, and provides a first user radio terminal located in the identified radio base station. In addition to notifying the congestion status of the wireless base stations in the area, the PCRF is instructed to limit the bandwidth while allowing the communication of the first user wireless terminal. Further, the second user radio terminal located in the specified radio base station is notified of the congestion status of the located radio base station, and the second user radio terminal is additionally charged to the billing system. Instruct. In this way, the band of the second user radio terminal is managed so as to guarantee a wider band than the band of the first user radio terminal.

  Another aspect of the present invention is a radio base station state management apparatus having the functions described above. The apparatus includes a plurality of user radio terminals, a radio base station with which the user radio terminals communicate, a core network to which the radio base stations are connected, a DPI apparatus that collects packet information on the core network, and a subscription fee plan for user radio terminals Is connected to a wireless communication network provided with a user management DB for managing data and a charging system for managing charges generated for user wireless terminals, and manages the network.

  By using the management method of the present invention, even a congested base station can perform the minimum necessary communication without impairing the opportunity for communication. Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall flowchart of a management system according to a first embodiment that implements the present invention. 1 is an overall configuration block diagram of a management system in Embodiment 1 that implements the present invention. It is a block diagram of the configuration of a radio base station state management apparatus in Embodiment 1 for implementing the present invention. It is a data table figure of an example of base station information DB in Example 1 which implements this invention. It is a data table figure of an example of user information DB in Example 1 which implements the present invention. It is a data table figure of an example of base station congestion information DB in Example 1 which implements this invention. It is a data table figure of an example of base station management information DB in Example 1 which implements this invention. It is a data table figure of an example of the threshold value setting for performing congestion determination in Example 1 which implements the present invention. It is a processing flow of the data management totalization part in Example 1 which implements this invention. It is a registration processing flowchart of the user information of the data management totalization part in Example 1 which implements this invention. It is a processing flow figure of the congestion state determination of the base station of the control determination part in Example 1 which implements this invention. It is a processing flowchart at the time of determining with the base station of the control determination part in Example 1 which implements this invention being congested. It is a processing flow figure at the time of determining with the base station of the control determination part in Example 1 which implements this invention being crowded. It is a processing flow figure at the time of determining with the base station of the control determination part in Example 1 which implements this invention being not crowded. It is a notification process flow figure to the user of the reception and notification part in Example 1 which implements this invention. It is a request processing flow figure from the user of the reception and notification part in Example 1 which implements the present invention. It is a top view of an example of the display on the user radio | wireless terminal which has not selected the high speed communication in Example 1 which implements this invention. It is a top view of an example of the display on the user radio | wireless terminal which has selected high speed communication in Example 1 which implements this invention. It is a top view of an example of the display on the user radio | wireless terminal notified that it is getting crowded in Example 1 which implements this invention. It is a top view of an example of the display on the user radio | wireless terminal notified that the congestion in Example 1 which implements this invention was eliminated. It is a whole block diagram of the management system in Example 2 which implements this invention. It is a block diagram of the configuration of a control management device in Embodiment 2 for carrying out the present invention. It is a structure block diagram of the radio base station in Example 2 which implements this invention. It is a conceptual diagram of an example of the connection user list | wrist in Example 2 which implements this invention. It is a processing flow figure of packet totalization of the wireless base station in Example 2 which implements this invention. It is a processing flowchart of the congestion state determination of the congestion determination part in Example 2 which implements this invention. It is a processing flow figure at the time of determining with the base station of the control instruction | indication part in Example 2 which implements this invention being congested. It is a processing flow figure at the time of determining with the base station of the control instruction | indication part in Example 2 which implements this invention being crowded. It is a processing flow figure at the time of determining with the base station of the control instruction | indication part in Example 2 which implements this invention being not crowded.

  Embodiments will be described in detail with reference to the drawings. However, the present invention is not construed as being limited to the description of the embodiments below. Those skilled in the art will readily understand that the specific configuration can be changed without departing from the spirit or the spirit of the present invention.

  In the structures of the invention described below, the same portions or portions having similar functions are denoted by the same reference numerals in different drawings, and redundant description may be omitted.

  In the present specification and the like, notations such as “first”, “second”, and “third” are attached to identify the components, and do not necessarily limit the number or order. In addition, a number for identifying a component is used for each context, and a number used in one context does not necessarily indicate the same configuration in another context. Further, it does not preclude that a component identified by a certain number also functions as a component identified by another number.

  The position, size, shape, range, and the like of each component illustrated in the drawings and the like may not represent the actual position, size, shape, range, or the like in order to facilitate understanding of the invention. For this reason, the present invention is not necessarily limited to the position, size, shape, range, and the like disclosed in the drawings and the like.

  FIG. 1A is a flowchart showing a basic flow of mobile network management according to an embodiment of the present invention.

  In process 1000, status information of each base station is acquired. The status information is, for example, information related to connected users such as connected user IDs, and information related to congestion status such as the number of connected users, data amount, and throughput.

  In process 1001, congestion determination for each base station is performed based on the state information. When there is no congestion, the connected user can communicate over a wide band without bandwidth limitation, and there is no additional charge.

  In process 1002, when there is congestion, data of users under the base station is acquired.

  In the process 1003, out of the users under the base station, users who have concluded a contract that is a target of a price plan that, in principle, the congested base station becomes low-speed communication are extracted.

  In a process 1004, the contract target user is notified that there is a case where the band is limited because congestion has occurred.

  In process 1005, the user who has received the notification is allowed to select whether to accept or cancel the bandwidth limitation. When the user does not select high-speed communication, the target user's band is limited to enable communication in a narrow band. In this case, there is no additional charge (1006). In addition, when the user selects high-speed communication, the target user's band is not limited, and broadband communication is possible. In this case, however, an additional charge is generated (1007). In addition, even if there is no response from the user, the bandwidth can be limited or additional charge can be made by pre-designating the user whether to limit the bandwidth when congestion occurs or to perform high-speed communication by additional charge. It can also be done.

  With the above processing, the user does not lose the opportunity for communication and can avoid unintended additional charging. Hereinafter, examples will be described in more detail.

  FIG. 1B shows the overall system configuration of the first embodiment for carrying out the present invention. In a wireless communication network that realizes the present invention, there are a mixture of terminals that subscribe to a charge plan that is restricted according to the congestion status of the base station according to the present invention and a charge plan such as a conventional flat rate or a pay-as-you-go system according to the traffic. ing.

  As described below, it is assumed that the subscriber to the rate plan according to the present invention has installed a dedicated application on the user wireless terminal. However, it is realized by a general-purpose application such as an operation system (OS) of the terminal or a Web browser. Also good.

  When the user radio terminal 10 is located in the radio base station 20 and connects to the Internet network 40, the user radio terminal 10 passes through the core network 30 and the PCEF 170. At that time, packets passing through the core network 30 are collected by the DPI device 110.

  The DPI device 110 collects communications between the user wireless terminal 10 and the Internet network 40, and totals the number of connected users, the amount of transmitted / received data, etc. for each session. The totaled results are transmitted to the radio base station state management device 100 at a cycle specified in advance. Sessions longer than the specified period are tabulated and divided for each specified period. Further, the DPI device 110 may further transmit the information aggregated for each session to the radio base station state management device 100 as information aggregated for each base station or user.

  The radio base station state management apparatus 100 that has received the base station and user state performs congestion determination for each base station in cooperation with the user management DB 180, the charging system 190, the PCRF 160, and the PCEF 170. In addition, a control instruction is given to a user who has contracted a charge plan according to the present invention under a congested base station. The user management DB 180 stores and manages a subscription fee plan for each user. The billing system 190 performs billing management for users in cooperation with the user management DB 180.

  FIG. 2 shows the configuration of the radio base station state management apparatus 100 according to the first embodiment of the present invention. The radio base station state management apparatus 100 includes functions of a data management totaling unit 120, a control determination unit 130, and an acceptance / notification unit 140, a base station information DB 121, a user information DB 122, a base station congestion information DB 123, and a base station management information DB 124. It consists of each DB.

  Although it is assumed that each function is mounted on a separate server or dedicated device, a plurality of functions may be mounted on the same server or dedicated device. Each DB is assumed to be mounted on the same hardware as the data management totaling unit 120, but a DB-dedicated server or a dedicated device may be provided.

  Upon receiving the collected information for each session from the DPI device 110, the data management totaling unit 120 registers information such as base station ID, data amount, and throughput as base station information in the base station information DB 121 as base station information.

  The base station information DB 121 registers the base station information sent from the data management totaling unit 120 for each base station. Information of the registered base station is transmitted to the control determination unit 130 every predetermined period. In addition, information on the user ID and base station ID is registered in the user information DB 122.

  The user information DB 122 registers information transmitted from the base station information DB 121 and manages the user status. Information is registered by the data management totaling unit 120. The registration process will be described later.

  The control determination unit 130 receives the base station information from the data management totaling unit 120 or the base station information DB 121, determines the congestion of the base station, instructs the reception / notification unit 140 to notify the congestion / congestion end to the user, and notifies the PCRF 160 to the user. Instructs the control / release of control to. Details will be described later. In addition, a threshold for determining the congestion of the base station is set in advance and developed on the memory of the control determination unit 130. Note that the threshold setting may be managed by a file. A plurality of threshold values can be designated according to the congestion level.

  In the base station congestion information DB 123, when the control determination unit 130 determines that the base station is congested in the congestion determination, the congestion level and the like are registered. Details will be described later.

  Various information is registered in the base station management information DB 124 for each base station ID.

  The reception / notification unit 140 receives a congestion / congestion end notification to the user and a high-speed communication selection / deselection request from the user based on an instruction from the data management totaling unit 120 or the control determination unit 130. Details will be described later.

  FIG. 3 shows an example of the base station information DB 121 in the first embodiment of the present invention. The base station information sent from the data management totaling unit 120 is registered for each base station ID. In the base station information DB 121, information of registration date / time, number of connected users, uplink / downlink throughput, uplink / downlink data amount, uplink / downlink error count, and handover IN / OUT count is recorded for each base station ID. . The base station information DB 121 is updated with a period of, for example, 10 to 30 seconds for each base station. The number of errors and the number of handovers can be the total number for each period.

  FIG. 4 shows an example of the user information DB 122 according to the first embodiment of the present invention. Information on the user ID and base station ID is transmitted from the base station information DB 121 to the user information DB 122. In the user information DB 122, the registration base date and ID of the base station with which the user is communicating are registered for each user ID. These pieces of information can be registered by the data aggregation management unit 120. In addition, an in-control flag indicating that the user is a bandwidth control target at the time of congestion is registered based on the billing program. In the example of the control flag in FIG. 4, “1” indicating that the in-control flag is ON is registered for the band control target user. In addition, a high-speed communication selection flag indicating that the high-speed communication is selected by paying an additional fee, canceling the restriction, and being selected as a band control target in the congested base station is registered. The high-speed communication selection flag can be set by the user radio terminal 10 via the reception / communication unit 140. The user who has released the restriction registers “1”, which means that the high-speed communication selection flag is ON. In FIG. 4, “0” indicates flag OFF. In the present specification, ON / OFF of the flag is defined as described above.

  FIG. 5 shows an example of the base station congestion information DB 123 according to the first embodiment of the present invention. The determination result of the control determination unit 130 is registered in the base station congestion information DB 123. A congestion level is recorded for each base station ID. The congestion level can be related to the degree of bandwidth control. For example, when there is no congestion level (no congestion), users who can use 10Mbps to 100Mbps or more by bandwidth without restriction, level 5 is 128Kbps, level 4 is 256Kbps, level 3 is 500Kbps, level 2 Is limited to 1 Mbps, and level 1 is limited to 2 Mbps.

  FIG. 6 shows an example of the base station management information DB 124 according to the first embodiment of the present invention. Information on latitude, longitude, and altitude is registered for each base station ID.

  FIG. 7 shows an example of threshold setting used for determining base station congestion in the first embodiment of the present invention. Threshold information of status data such as determination conditions, congestion level, number of connected users, uplink / downlink throughput, uplink / downlink data amount, uplink / downlink error count, handover IN / OUT count is registered for each base station ID Has been. The determination condition is a logical operation of the determination result based on the threshold value of each situation data. With this method, various conditions can be set for each base station. A plurality of threshold values can be set for one base station ID. It is also possible to set a plurality of levels for one base station ID. For example, four levels of 5, 4, 1, and -1 are set in the base station 00001. Different bandwidth limits can be set for each level. For example, level 5 is determined to have a greater degree of congestion than level 1, and a large band limitation is applied. A level of −1 is a quasi-congestion level and is not a band restriction target, but indicates that if congestion continues as it is, it becomes a band restriction target. In addition, the congestion level can be determined under a single condition for a plurality of base stations. For example, the base station ID * indicates a condition that is applied to all base stations. In a situation that does not correspond to the condition of FIG. 7, it is determined that there is no congestion, and no bandwidth limitation is performed.

  The condition data shown in FIG. 7 is not particularly limited, but is stored in, for example, a memory in the control determination unit 130.

  FIG. 8 is a flowchart when the data management totaling unit 120 according to the first embodiment of the present invention receives the collected information for each session from the DPI device 110, registers the base station information, and transmits it to the control determination unit 130.

  When the collected information for each session is received from the DPI device 110 in S201, the session information is read in S202. In step S203, the base station ID, uplink / downlink throughput, uplink / downlink data amount, uplink / downlink error count, handover IN / OUT count, and the like are extracted as information about the base station. Using the corresponding base station ID as a key, a search is performed as to whether there is a registration in the base station information DB 121 in S204. If there is registration at this time, the update date / time information in the corresponding record is acquired. The search result is determined in S205, and if there is registration, it is determined in S210 whether the update date / time is within the current registration cycle. This registration cycle is the same as the cycle of periodically transmitting packet collection information from the DPI device 110 described above. In the case of the current counting cycle, the base station information is added to the base station information DB 121 and registered in S220. Note that information that is not appropriate to be added, such as throughput, is averaged. If there is no registration in S205, if the information is registered in S210 but not in the current counting cycle, the base station information is overwritten and registered in the base station information DB 121 in S230. In S221, the user ID and the serving base station ID are extracted from the session information as information about the user, and registration is performed in the user information DB 122 in S222. Details of the registration will be described with reference to FIG. In S223, it is confirmed whether or not it is within the registration period. If it is within the registration period and there is unprocessed session information in S240, the process returns to S202 to process the next session information. If the registration period has passed in S223, or if there is no unprocessed session information in S240, the base station information registered in the base station DB 121 is transmitted to the control determination unit 130 in S250. After the transmission, the process returns to S201 to acquire the next packet collection information.

  FIG. 9 is a flowchart when the data management tabulation unit 120 according to the first embodiment of the present invention registers user information in the user information DB 122.

  If there is a user information registration request in S301, a search is made in S302 as to whether or not the corresponding user ID is registered in the user information DB 122. This request cycle may be arbitrary or the same as the cycle of periodically transmitting packet collection information from the DPI device 110 described above. If the corresponding user ID is not registered in S303, the user information is registered in the user information DB 122 in S371. If the corresponding user ID is registered in S303 and there is no change in the serving base station ID, the process is terminated. If there is a change in the serving base station ID in S303, the serving base station ID in the user information DB 122 is updated with the new base station ID in S310, and the controlling flag and the high-speed communication selection flag are set from the data management totaling unit 120. get. In S311, the in-control flag is determined, and if it is OFF, the process ends. If it is ON, the congestion information of the new base station is acquired from the base station congestion information DB 123 in S312. In S313, the congestion status of the new base station is determined, and if it is congested, the process ends. If it is not crowded, the high-speed communication selection flag is determined in S314. If it is ON, the in-control flag for the corresponding user ID in the user information DB 122 is changed to OFF in S320. In step S321, the charging system 190 is notified of the end of additional charging. In S322, the user ID is transmitted to the reception / notification unit 140 so as to notify the user of the end of the congestion. If it is determined in step S314 that the high-speed communication selection flag is OFF and the flag is OFF, the in-control flag for the corresponding user ID in the user information DB 122 is changed to OFF in step S330. Subsequently, in S331, the PCRF 160 is requested to cancel the bandwidth limitation of the corresponding user. In step S332, the user ID is transmitted to the reception / notification unit 140 so as to notify the user of the end of the congestion.

  FIG. 10 is a flowchart when the control determination unit 130 according to the first embodiment of the present invention performs base station congestion determination. In step S401, base station information is acquired from the base station information DB 121, and in step S402, the base station ID is read. In S403, all threshold values relating to the corresponding base station ID are acquired, and in S404, the threshold values are sequentially read in descending order of the threshold congestion level. In S405, the determination condition is determined, and in the case of an AND condition, in S410, the number of connected users of the corresponding base station, uplink / downlink throughput, uplink / downlink data amount, uplink / downlink error count, handover IN / OUT It is determined whether all the numbers exceed the threshold. However, it is determined whether the throughput is below the threshold. If there is an item that does not exceed the threshold value, it is checked in S420 whether undetermined threshold information remains, and if it remains, the process returns to S404. In S405, the determination condition is determined, and in the case of the OR condition, in S430, it is determined whether any threshold is exceeded in the same items as in S410. If none of the threshold values has been exceeded, it is checked in S440 whether undetermined threshold information remains, and if it remains, the process returns to S404. If all threshold values are exceeded in S410, if any threshold value is exceeded in S430, or if an undetermined threshold value does not remain in S420 or S440, the congestion level is determined in S450. When the level is 1 or more, it is congested, when the level is -1 or less, it is quasi-congested, and when it is determined that the threshold is not exceeded, it is determined that there is no congestion. The determination result is confirmed in S451, and if it is congested, control processing at the time of congestion is performed in S460. In the case of semi-congestion in S451, control processing during semi-congestion is performed in S461. If there is no congestion in S451, control processing when there is no congestion is performed in S462.

  The processing in FIGS. 8 to 10 is desirably performed periodically. Although the period is arbitrary, for example, the period is 10 to 30 seconds. If the cycle is shortened to 1 to 10 seconds, for example, the response to changes in the communication congestion status is accelerated. In addition, when a method of allowing the user to select whether or not to limit the bandwidth is used as described later, the response time viewed from the user can be shortened. However, the load on the system increases.

  FIG. 11 is a flowchart of a process (process S460 in FIG. 10) when the control determination unit 130 in the first embodiment of the present invention determines that the base station is congested in the congestion determination. If it is determined as a result of the congestion determination that the congestion is determined, the congestion level is registered in the base station congestion information DB 123 in S501. Subsequently, in S502, the user information DB 122 is searched, and a list of user IDs and high-speed communication selection flags of users who are located in the corresponding base station ID and whose control flag is OFF is acquired. A subscription fee plan is acquired from the user management DB 180 using the user ID acquired in S503 as a key. In S504, it is determined whether or not the subscription fee plan is a fee plan that is restricted according to the congestion status according to the present invention. If it is determined that the target is not applicable, the process ends. If it is determined to be the target, the high-speed communication selection flag is determined in S510. If it is ON, the user ID and the user ID are notified to notify the reception / notification unit 140 to the user that the base station is congested in S520. The serving base station ID is transmitted, and the in-control flag of the user information DB 122 is changed to ON in S521. Further, in S522, the charging system 190 is notified of the start of additional charging by high-speed communication at the congested base station. If the result of the determination of the high-speed communication selection flag in S510 is OFF, in S530, the user ID and the serving base station ID are transmitted to the reception / notification unit 140 to notify the user that the base station is congested. In S531, the in-control flag of the user information DB 122 is changed to ON. Further, in S532, the PCRF 160 is requested to start band limitation for the corresponding user.

  FIG. 12 is a flowchart of a process (process S461 in FIG. 10) when the control determination unit 130 in the first embodiment of the present invention determines that the base station is congested in the congestion determination. If it is determined as semi-congested as a result of the congestion determination, whether or not the corresponding base station ID is registered in the base station congestion information DB 123 is searched in S601. If there is no registration as a result of the search in S602, the congestion level is registered in the base station congestion information DB 123 in S610. Subsequently, in step S611, the user information DB 122 is searched, and a list of user IDs of users who are located in the corresponding base station ID and whose control flag is OFF is acquired. A subscription fee plan is acquired from the user management DB 180 using the user ID acquired in S612 as a key. In S613, it is determined whether or not the subscription fee plan is a fee plan that is restricted according to the congestion status according to the present invention. If it is determined that the target is not applicable, the process ends. If it is determined as the target, in S614, the user ID and the base station ID are transmitted to the reception / notification unit 140 so as to notify the user of the semi-congestion approaching the congestion state. As a result of the search in S602, if it is congested, the congestion level is registered in the base station congestion information DB 123 in S620. Subsequently, in S621, the user information DB 122 is searched, and a list of user IDs and high-speed communication selection flags of users who are in the corresponding base station ID and whose control flag is ON is acquired. In step S622, the high-speed communication selection flag is determined. If the flag is OFF, in step S630, the control flag for the corresponding user in the user information DB 122 is changed to OFF, and in step S631, the PCRF 160 is requested to release the band limitation of the corresponding user. Further, in step S632, the user ID is transmitted to the reception / notification unit 140 so as to notify the user of the end of the congestion. If the result of the determination of the high-speed communication selection flag in S622 is ON, in S640, the in-control flag for the corresponding user ID in the user information DB 122 is changed to OFF, and the charging system 190 is notified of the end of additional charging in S641. Further, in step S642, the user ID is transmitted to the reception / notification unit 140 so as to notify the user of the end of the congestion. If the result of the search in S602 is semi-congested, the congestion level is registered in the base station congestion information DB 123 in S650, and the process is terminated.

  FIG. 13 is a flowchart of a process (process S462 in FIG. 10) when the control determination unit 130 according to the first embodiment of the present invention determines that the base station congestion is equal to or less than a threshold, that is, no congestion. In S701, it is searched whether or not the corresponding base station ID is registered in the base station congestion information DB 123. If the result of the search in S702 is semi-congested, the corresponding base station information is deleted from the base station congestion information DB 123 in S710. If there is no registration as a result of the search in S702, the process ends. As a result of the search in S702, if it is determined that the traffic is congested, the corresponding base station information is deleted from the base station congestion information DB 123 in S720. Subsequently, in S721, the user information DB 122 is searched, and a list of user IDs and high-speed communication selection flags of users who are in the corresponding base station ID and whose control flag is ON is acquired. In step S722, the high-speed communication selection flag is determined. If the flag is OFF, in step S730, the control flag of the corresponding user in the user information DB 122 is changed to OFF, and in step S731, the PCRF 160 is requested to release the band limitation of the corresponding user. Further, in step S732, the user ID is transmitted to the reception / notification unit 140 so as to notify the user of the end of the congestion. If the result of determining the high-speed communication selection flag in S722 is ON, in S740, the in-control flag for the corresponding user ID in the user information DB 122 is changed to OFF, and the charging system 190 is notified of the end of additional charging in S741. In step S742, the user ID is transmitted to the reception / notification unit 140 so as to notify the user of the end of the congestion.

  In the flow of FIGS. 11 to 13, it is assumed that the high-speed communication selection flag has been set ON / OFF in advance by the user or the system administrator. However, as will be described later with reference to FIGS. 15 to 17, the high-speed communication selection flag can be changed as appropriate, and the user has the opportunity to set / change the high-speed communication selection flag on / off when notifying the user. It is also a desirable form. In this case, for example, in FIG. 11, after the notification process to the user (S520, S530), a process of reflecting the ON / OFF selection result of the user's high-speed communication selection flag in the user information DB 122 may be performed. Details will be described with reference to FIG.

  FIG. 14 is a flowchart when the reception / notification unit 140 according to the first embodiment of the present invention receives a notification request to the user from the control determination unit 130 and notifies the user. When a notification request to the user is received from the control determination unit 130 in S801, the type of notification is determined in S802. In the case of notification of congestion start or semi-congestion start, the information on the latitude, longitude, and altitude of the serving base station is retrieved from the base station management information DB 124 using the serving base station ID of the corresponding user as a key in S810. The base station management information DB 124 is searched again from the specified information and the distance and altitude value from the congested base station designated in advance, and base station ID, latitude, longitude and altitude information of the surrounding base stations within the designated distance and altitude are extracted. . Next, in S811, the congestion information of each neighboring base station is searched from the base station congestion information DB 123 using the base station ID of the neighboring base station as a key. In S812, the base station in which the user is located is congested or semi-congested, and the latitude, longitude, altitude, and congestion status of the surrounding base stations are notified to the user. If the notification type is congestion end in S802, the user is notified of the congestion end in S820.

  FIG. 15 is a flowchart when the reception / notification unit 140 according to the first embodiment of the present invention receives a request for changing whether or not high-speed communication is selected from the user wireless terminal 10. When the reception / notification unit 140 receives a request for changing the presence / absence of high-speed communication selection from the user wireless terminal 10 in S901, the type of request is determined in S902. In the case of changing to high-speed communication selection, in S910, the high-speed communication selection flag of the corresponding user ID in the user information DB 121 is changed to ON, and the state of the in-control flag is acquired. In S911, the state of the in-control flag is determined. If it is ON, in S920, the PCRF 160 is requested to release the bandwidth limitation of the user, and the charging system 190 is notified of the start of additional charging in S921. If the in-control flag is OFF in S911, the process ends. As a result of the determination of the type of request in S902, in the case of changing to no selection of high-speed communication, in S930, the high-speed communication selection flag of the corresponding user ID in the user information DB 121 is changed to OFF and the status of the in-control flag is acquired. To do. In S931, the state of the in-control flag is determined. If it is ON, the charging system 190 is notified of the end of the additional charging in S940, and the PCRF 160 is requested to start limiting the bandwidth of the corresponding user in S941. If the in-control flag is OFF in S931, the process ends.

  The process of FIG. 15 can be performed by the user at an arbitrary time. Also, as shown in steps S322 and S332 in FIG. 9, steps S520 and S530 in FIG. 11, steps S614, S632, and S642 in FIG. 12, steps S732 and S742 in FIG. 13, and steps S812 and S820 in FIG. When notifying the user from the unit 140, it is also desirable that the software on the user wireless terminal side inquires of the user whether the high-speed communication selection is necessary and prompts the user to select.

  FIG. 16 is an example of a display when the user wireless terminal 10 in the first embodiment of the present invention receives a congestion notification and the user has not selected high-speed communication. When the congestion notification and the information on the neighboring base stations are received from the reception / notification unit 140 (for example, notification is made by the processing S530 in FIG. 11), the dedicated application operating on the user wireless terminal 10 is located on the screen. Displays that the base station is congested and communication is restricted. In addition, “prompt” to close the notification screen, “cancel control” to perform high-speed communication, and “neighboring base station” to display the status of neighboring base stations to prompt the user to perform the next operation A menu such as “display status of” is displayed. If “OK” is selected, the notification screen is closed. When “Release control” is selected, a request to change to high-speed communication selection is made to the reception / notification unit 140. When “display status of neighboring base stations” is selected, the base station is displayed on the map based on the neighboring base station information received from the reception / notification unit 140 in cooperation with the map display service. The display of the base station may be color-coded according to the congestion situation. In addition, when there are base stations other than the base stations where radio waves reach the user radio terminal 10 in the surrounding base stations, the connected base stations can be switched by user operation.

  FIG. 17 is an example of a display when the user wireless terminal 10 in the first embodiment of the present invention receives a congestion notification and the user selects high-speed communication. When the congestion notification and the information on the neighboring base stations are received from the reception / notification unit 140 (for example, notification is made in step S520 in FIG. 11), the dedicated application operating on the user wireless terminal 10 is located on the screen. Displays that the base station is congested and that additional charging has started due to the selection of high speed communication. In order to prompt the user to perform the next operation, “OK” to close the notification screen, “Switch to low speed communication” to end high-speed communication, “Nearby base” to display the status of surrounding base stations A menu such as “Display station status” is displayed. The operation when “OK” and “Display status of neighboring base stations” are selected are the same as those in FIG. When “switch to low speed communication” is selected, a change request not to select high speed communication is made to the reception / notification unit 140.

  FIG. 18 is an example of a display when the user wireless terminal 10 receives a semi-congestion notification in the first embodiment of the present invention. When the notification of semi-congestion and the information on the neighboring base stations are received from the reception / notification unit 140 (for example, notifications in steps S630 and S640 in FIG. 12), the dedicated application running on the user wireless terminal 10 is present on the screen. Displays that the base stations in the service area are getting crowded. Further, menus such as “OK” and “Display status of neighboring base stations” for closing the notification screen are displayed so as to prompt the user to perform the next operation. The operation when “OK” and “Display status of neighboring base stations” are selected are the same as those in FIG.

  FIG. 19 is an example of a display when the user wireless terminal 10 receives a congestion end notification in the first embodiment of the present invention. When a congestion end notification is received from the reception / notification unit 140 (for example, notification is made in steps S732 and S742 in FIG. 13), the dedicated application operating on the user wireless terminal 10 is in the base station located on the screen. Displays that the congestion of has been resolved. Furthermore, a menu such as “OK” for closing the notification screen is displayed to the user. The operation when “OK” is selected is the same as in FIG.

  FIG. 20 shows a second embodiment for carrying out the present invention. In the second embodiment, the DPI device 110 and the radio base station state management device 100 are not installed in the radio communication network, the radio base station 20 determines whether the base station is congested, and a control instruction is executed by the control management device 200. Is.

FIG. 21 shows the configuration of the control management apparatus 200 according to the second embodiment of the present invention. The control management apparatus 200 includes functions of a control instruction unit 210 and an acceptance / notification unit 140, and a user information DB 122, a base station congestion information DB 123, and a base station management information DB 124. Although it is assumed that each function is mounted on a separate server or dedicated device, a plurality of functions may be mounted on the same server or dedicated device. Each DB is assumed to be mounted on the same hardware as the control instruction unit 210, but a DB-dedicated server or a dedicated device may be provided.
Upon receiving information such as a base station ID, a congestion level, and a connected user list from the base station 20, the control instruction unit 210 instructs the reception / notification unit 140 to notify the user of congestion / congestion completion, and instructs the PCRF 160 to release control / control to the user. The instructions are given. In addition, the user information DB 122 and the base station congestion information DB 123 are updated. Details will be described later. Based on an instruction from the control instruction unit 210, the reception / notification unit 140 notifies the user of congestion / congestion end, or receives a request for high-speed communication selection / deselection from the user. Details will be described later.

  FIG. 22 shows the configuration of the radio base station 20 according to the second embodiment of the present invention. The radio base station 20 includes a radio transmission / reception unit 310, a control / baseband unit 320, a network I / F 330, and an antenna unit 340. The radio base station 20 functions as a normal radio base station that connects the user radio terminal 10 and the core network 30, and also determines congestion. It has a function of determining the congestion state of the base station configured by each function of the unit 350 and the connected user list 351.

  FIG. 23 shows an example of a connected user list according to the second embodiment of the present invention. A list of user IDs of users connected to the base station and performing communication is managed as a list.

  FIG. 24 is a flowchart when the congestion determination unit 350 of the radio base station 20 counts up the packets according to the second embodiment of the present invention. In step S1001, a packet is acquired from between the control / baseband unit 320 and the network I / F 330, and in step S1002, it is confirmed whether user ID information is included. If it is included, the user ID is registered in the connected user list 351 in S1010. Whether or not the user ID is included in S1002, in S1020, as the traffic information of the base station, the uplink / downlink throughput, the uplink / downlink data amount, the uplink / downlink error count, the IN / OUT of the handover Extract the number. In S1021, the traffic information is added. Note that information that is not appropriate to be added, such as throughput, is averaged. In S1022, it is confirmed whether it is within the registration period. If it is within the registration period, the process returns to S1001 to process the next packet. If the registration period is exceeded in S1022, the base station congestion determination is performed in S1030.

  FIG. 25 is a flowchart when the congestion determination unit 350 of the radio base station 20 performs the congestion determination in the second embodiment of the present invention. All the threshold information set in advance in S1101 is acquired, and in S1102, the thresholds are sequentially read in descending order of the threshold congestion level. In S1103, the determination condition is determined. In the case of an AND condition, in S1110, the number of connected users of the corresponding base station, uplink / downlink throughput, uplink / downlink data amount, uplink / downlink error count, handover IN / OUT It is determined whether all the numbers exceed the threshold. However, it is determined whether the throughput is below the threshold. If there is an item that does not exceed the threshold, it is checked in S1111 whether undetermined threshold information remains, and if it remains, the process returns to S1102. In S1103, the determination condition is determined. In the case of the OR condition, in S1120, it is determined whether any threshold is exceeded in the same items as in S1110. If none of the threshold values has been exceeded, it is checked in S1121 whether undetermined threshold information remains, and if it remains, the process returns to S1102. If all threshold values are exceeded in S1110, if any threshold value is exceeded in S1120, or if an undecided threshold value remains in S1111 or S1121, congestion level determination is performed in S1130. When the level is 1 or more, it is congested, when the level is -1 or less, it is quasi-congested, and when it is determined that the threshold is not exceeded, it is determined that there is no congestion. The determination result is confirmed in S1131, and if it is congested, the base station ID, congestion level, and connected user list are notified to the control instruction unit 210 in S1140. In the case of semi-congestion in S1131, the base station ID, congestion level, and connected user list are notified to the control instruction unit 210 in S1141. If there is no congestion at S1131, the control instruction unit 210 is notified at S1142 that it is not crowded with the base station ID.

  FIG. 26 is a flowchart when the control instruction unit 210 according to the second embodiment of the present invention is notified of congestion information from the radio base station 20. In S1301, the base station ID, the congestion level, and the connected user list are received from the radio base station 20, and the congestion level notified in S1302 is registered in the base station congestion information DB 123. A subscription fee plan is acquired from the user management DB 180 using the user ID of the connected user list acquired in S1303 as a key. In S1304, it is determined whether or not the subscription fee plan is a fee plan that is restricted according to the congestion status according to the present invention. If it is determined that the target is not applicable, the process ends. If it is determined that it is the target, the user information DB 122 is searched in S1310, and the in-control flag and the high-speed communication selection flag are acquired. In S1311, the in-control flag is determined, and if it is ON, the process ends. If it is OFF, the high-speed communication selection flag is determined in S1320. If it is ON, the user ID and the serving base are notified to the reception / notification unit 140 in S1330 that the base station is congested to the user. The station ID is transmitted, and the in-control flag of the user information DB 122 is changed to ON in S1331. Further, in S1332, the charging system 190 is notified of the start of additional charging by high-speed communication at the congested base station. If the result of the determination of the high-speed communication selection flag in S1320 is OFF, in S1340, the user ID and the serving base station ID are transmitted to the reception / notification unit 140 to notify the user that the base station is congested. In S1341, the in-control flag of the user information DB 122 is changed to ON. Further, in step S1342, the PCRF 160 is requested to start band limitation for the corresponding user.

  FIG. 27 is a flowchart when the control instruction unit 210 according to the second embodiment of the present invention is notified of semi-congestion information from the radio base station 20. In S1401, the base station ID, congestion level, and connected user list are received from the radio base station 20, and in S1402, it is searched whether the corresponding base station ID is registered in the base station congestion information DB 123. If there is no registration as a result of the search in S1403, the congestion level is registered in the base station congestion information DB 123 in S1410. Subsequently, the subscription fee plan is acquired from the user management DB 180 using the user ID of the connected user list acquired in S1411 as a key. In S1412, it is determined whether the subscription fee plan is a fee plan that is restricted according to the congestion status according to the present invention. If it is determined that the target is not applicable, the process ends. If it is determined as the target, the user ID and the serving base station ID are transmitted to the reception / notification unit 140 so as to notify the user of the semi-congestion approaching the congestion state. If it is congested in S1403, the congestion level is registered in the base station congestion information DB 123 in S1420. Subsequently, in S1421, the user information DB 122 is searched, and a list of user IDs and high-speed communication selection flags of users who are in the corresponding base station ID and whose control flag is ON is acquired. In step S1422, the high-speed communication selection flag is determined. If the flag is OFF, the control flag of the corresponding user in the user information DB 122 is changed to OFF in step S1430. In step S1431, the PCRF 160 is requested to release the band limitation of the corresponding user. In step S1432, the user ID is transmitted to the reception / notification unit 140 so as to notify the user of the end of the congestion. If the result of the determination of the high-speed communication selection flag in S1422 is ON, in S1440, the in-control flag for the corresponding user ID in the user information DB 122 is changed to OFF, and the charging system 190 is notified of the end of additional charging in S1441. Further, in step S1442, the user ID is transmitted to the reception / notification unit 140 so as to notify the user of the end of the congestion. If the result of the search in S1403 is quasi-congested, the congestion level is registered in the base station congestion information DB 123 in S1450, and the process ends.

  FIG. 28 is a flowchart when the control instruction unit 210 according to the second embodiment of the present invention is notified of information that the wireless base station 20 is not congested. In S1501, it is received from the radio base station 20 that it is not congested with the base station ID, and in S1502, it is searched whether the corresponding base station ID is registered in the base station congestion information DB 123. If the result of the search in S1503 is quasi-congested, the corresponding base station information is deleted from the base station congestion information DB 123 in S1510. If there is no registration as a result of the search in S1503, the process ends. As a result of the search in S1503, if it is determined that the traffic is congested, the corresponding base station information is deleted from the base station congestion information DB 123 in S1520. Subsequently, in S1521, the user information DB 122 is searched, and a list of user IDs and high-speed communication selection flags of users who are in the corresponding base station ID and whose control flag is ON is acquired. In step S1522, the high-speed communication selection flag is determined. If the flag is OFF, in step S1530, the in-control flag of the corresponding user in the user information DB 122 is changed to OFF, and in step S1531, the PCRF 160 is requested to release the band limitation of the corresponding user. Further, in step S1532, the user ID is transmitted to the reception / notification unit 140 so as to notify the user of the end of the congestion. If the result of determining the high-speed communication selection flag in S1522 is ON, in S1540, the in-control flag for the corresponding user ID in the user information DB 122 is changed to OFF, and the charging system 190 is notified of the end of additional charging in S1541. In step S1542, the user ID is transmitted to the reception / notification unit 140 so as to notify the user of the end of the congestion.

  The operation flow of the reception / notification unit 140 is the same as that of the first embodiment of the present invention.

  Any component expressed in the singular herein shall include the plural unless the context clearly dictates otherwise.

  The present invention is not limited to the embodiments described above, and includes various modifications. For example, the above-described embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to one having all the configurations described. In addition, a part of the configuration of an example can be replaced with the configuration of another example, and the configuration of another example can be added to the configuration of an example. Further, it is possible to add, delete, and replace other examples for a part of the configuration of each example.

  In addition, each of the above-described configurations, functions, processing units, and the like are designed by using hardware such as FPGA (Field Programmable Gate Array) and ASIC (Application Specific Integrated Circuit) by designing a part or all of them with, for example, an integrated circuit. It may be realized with. Each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by the processor. Information such as programs, tables, files, and databases for realizing each function can be stored in a memory, a hard disk, a recording device such as an SSD (Solid State Drive), or a recording medium such as an IC card or an SD card.

  Further, the information collected, set and used can be added / deleted / replaced from the above items.

DESCRIPTION OF SYMBOLS 10 User radio | wireless terminal 20 Base station 30 Core network 40 Internet network 100 Radio base station state management apparatus 110 DPI (Deep Packet Inspection) apparatus 120 Data management totaling part 121 Base station information DB
122 User information DB
123 Base station congestion information DB
124 Base station management information DB
130 Control Determination Unit 140 Reception / Notification Unit 160 PCRF (Policy and Charging Rules Func
tion)
170 PCEF (Policy and Charging Enforcement Function)
180 User management DB
190 Billing system 200 Control management device 210 Control instruction unit 310 Wireless transmission / reception unit 320 Control / baseband unit 330 Network I / F
340 Antenna unit 350 Congestion determination unit 351 List of connected users

Claims (15)

A management system for managing a wireless communication network,
The wireless communication network is:
Manages user radio terminals, radio base stations with which the user radio terminals communicate, core networks to which the radio base stations are connected, DPI devices that collect packet information on the core networks, and subscription plans for the user radio terminals A user management DB, a billing system for managing charges generated to the user radio terminals, and a radio base station state management device connected to the DPI device, for limiting the communication bandwidth and performing additional billing for each user radio terminal A wireless communication network capable of
The radio base station state management device,
A first process of determining a congestion level for each radio base station and extracting the radio base station having a congestion level equal to or higher than a predetermined level;
A second process of extracting user radio terminals located in the identified base station;
A third process of extracting a user radio terminal that satisfies the first condition from the user radio terminals in the area;
A user wireless terminal corresponding to the first condition has a function of performing a fourth process of detecting whether or not the second condition is satisfied;
Based on whether the second condition is met,
A wireless communication network management system for selecting whether to perform band limitation without additional charging or not to perform band limitation by performing additional charging for a user wireless terminal corresponding to the first condition. A user information DB storing user information including a user ID of the user wireless terminal, a base station ID in which the user wireless terminal having the user ID is located, and first and second flags corresponding to the user ID; Prepared,
The radio base station state management device is a user radio terminal located in the radio base station having a congestion level equal to or higher than the predetermined level.
The user management DB is searched using the user ID as a key, it is determined whether or not the user ID is a target for a specific rate plan, and if the user ID is a target for a specific rate plan, Set the 1 flag to ON,
In order to set whether or not the second condition is satisfied, the second flag is turned on based on information input from the user wireless terminal.
The wireless communication network management system according to claim 1. The radio base station state management device,
Notifying the user wireless terminal to which the first flag is added,
In response to the notification, the second flag on the user information DB is set or changed.
The wireless communication network management system according to claim 2. The notification to the user wireless terminal to which the first flag is added is
It is accompanied by a display indicating that the bandwidth is limited and a selection input waiting screen for whether or not to cancel the bandwidth limitation by additional charging, or
With a display that the bandwidth is not limited by additional charging, and a selection input waiting screen for whether or not to limit bandwidth by stopping additional charging,
The radio base station state management device,
A second flag on the user information DB is set or changed by a response based on an input to the selection input standby screen;
The wireless communication network management system according to claim 3.
In the determination of the congestion status for each radio base station, the radio base station state management device,
Each of the plurality of information serving as an indicator of the congestion status of the radio base station is subjected to a condition determination, and a logical operation is performed on the condition determination result to determine the congestion status.
The wireless communication network management system according to claim 1. A plurality of information serving as an indicator of the congestion status of the radio base station,
One or more pieces of information selected from the number of users connected to the radio base station, throughput, data amount, number of errors, and number of handovers,
The wireless communication network management system according to claim 5. In determining the congestion status for each radio base station,
In the condition determination, a combination of a plurality of information serving as an indicator of the congestion status and a logical operation are different for each radio base station.
The wireless communication network management system according to claim 6. In determining the congestion status of a single radio base station,
When performing a condition determination for a plurality of information serving as an indicator of the congestion status of the wireless base station, performing a logical operation on the condition determination result to determine the congestion status,
A first condition determination is performed on a first plurality of pieces of information serving as an indicator of the congestion status of the radio base station, and a first logical operation is performed on the first condition determination result to perform a first level congestion. Determine if it ’s true,
A second condition determination is performed on a second plurality of sets of information serving as an indicator of the congestion status of the radio base station, and a second logical operation is performed on the second condition determination result to generate a second level congestion. Determine if it ’s true,
The congestion status of a single wireless base station can be determined by classifying into multiple levels.
The wireless communication network management system according to claim 5. A management method for managing a wireless communication network, comprising:
The wireless communication network is:
Multiple user wireless terminals,
A radio base station with which the user radio terminal communicates,
A core network to which the radio base station is connected;
A DPI device for collecting packet information on the core network;
A user management DB for managing a subscription fee plan of the user wireless terminal;
A billing system for managing charges to the user wireless terminal;
The DPI device, the PCRF, the user management DB, and a radio base station state management device connected to the charging system,
A wireless communication network capable of limiting a communication band for each user wireless terminal;
The radio base station state management device uses the information obtained from the DPI device and the user management DB,
Determine the congestion status for each radio base station and identify the radio base station with a congestion level of a predetermined level or higher,
Identify a user wireless terminal located in the identified base station;
Extracting user radio terminals with a predetermined flag from the user radio terminals located in the area,
The radio base station state management device,
A notification for inquiring whether or not band limitation is possible is transmitted to the user wireless terminal to which the predetermined flag is added,
Based on the response to the notification, select whether to limit the bandwidth without performing additional charging for the user wireless terminal to which the predetermined flag is added, or to perform bandwidth limitation without performing additional charging. A wireless communication network management method for controlling. The radio base station state management device,
By managing information in the user information DB by information obtained from at least one of the connection destinations,
The user information DB is
A user ID for identifying the user wireless terminal, a visited base station ID for identifying a base station in which the user wireless terminal corresponding to the user ID is located, and the user wireless terminal are subject to a specific rate plan And a control flag that is the predetermined flag indicating that the base station in the service area is not less than a predetermined congestion level and a high-speed communication selection flag set based on a response to the notification are stored in association with each other. ,
The wireless communication network management method according to claim 9. Multiple user wireless terminals,
A radio base station with which the user radio terminal communicates,
A core network to which the radio base station is connected;
PCEF installed between the core network and the Internet network and capable of limiting a communication band for each user wireless terminal,
A PCRF that instructs the PCEF to limit the communication band;
A DPI device for collecting packets on the core network;
A user management DB for managing a subscription fee plan of the user wireless terminal;
A billing system for managing a generated fee for each user wireless terminal;
A radio base station state management device connected to the DPI device, the PCRF, the user management DB, and the charging system;
With
The radio base station state management device,
Determine the congestion status for each radio base station and identify a radio base station with a predetermined congestion level or higher,
Notifying the first user radio terminal located in the identified radio base station of the congestion status of the radio base station located and communicating the first user radio terminal to the PCRF Instructing to limit bandwidth while allowing,
Notifying the second user radio terminal located in the specified radio base station of the congestion status of the radio base station located, and adding the second user radio terminal to the billing system Instruct them to charge,
A wireless communication network management system that manages a bandwidth of the second user wireless terminal so as to guarantee a wider bandwidth than that of the first user wireless terminal. The radio base station state management device,
A base station information DB storing information indicating a communication status of the base station for each base station ID for identifying the radio base station based on information transmitted from the DPI device;
A control determination unit that determines the congestion status for each base station ID that identifies the radio base station, based on information in the base station information DB;
A base station congestion information DB that stores information indicating a congestion level for each base station ID that identifies the radio base station based on the determination result of the control determination unit;
For each user ID that identifies the user radio terminal, a user information DB that stores the base station ID in which the user radio terminal is located, a controlling flag, and a high-speed communication selection flag;
An instruction is received from the user wireless terminal, and a reception / notification unit that transmits a notification to the user wireless terminal is provided.
The user information DB sets the in-control flag based on information of the user management DB and the base station congestion information DB, and the high-speed communication based on an instruction from a user wireless terminal received by the reception / notification unit Set the selection flag,
The wireless communication network management system according to claim 11, wherein the first user wireless terminal and the second user wireless terminal are identified and instructed based on the in-control flag and the high-speed communication selection flag. The radio base station state management device includes a data management totaling unit,
The data management aggregation unit
When the user radio terminal is located in a radio base station different from the radio base station indicated by the base station ID stored in the user information DB due to the movement of the user radio terminal,
Updating the base station ID corresponding to the user ID for identifying the moved user wireless terminal in the user information DB;
Search the congestion level of the radio base station indicated by the updated base station ID from the base station congestion information DB,
13. The wireless communication network management system according to claim 12, wherein the in-control flag of the user information DB is set based on the searched congestion level. The control determination unit
In the determination of the congestion situation, for each wireless base station, determination is performed using a combination of different information selected from information in the base station information DB.
The wireless communication network management system according to claim 12. The control determination unit
In determining the congestion status of a single radio base station,
Each of the plurality of pieces of information selected from the information in the base station information DB is subjected to a condition determination, and a logical operation is performed on the condition determination result to determine a congestion situation.
When judging the congestion situation,
A condition determination is performed for each of the plurality of pieces of information for the first plurality of pieces of information that serves as an indicator of the congestion status of the radio base station, and a first logic is determined for the first condition determination result. Perform a calculation to determine if it falls under the first level congestion situation,
A condition determination is performed on each of the plurality of pieces of information for the second plurality of pieces of information that serves as an indicator of the congestion status of the radio base station, and a second logic is determined for the second condition determination result. Perform a calculation to determine if it falls under the second level congestion situation,
The congestion status of a single wireless base station can be determined by classifying into multiple levels.
The wireless communication network management system according to claim 12.

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