JP2008271141A - Mobile station, area quality management system, and area quality management method - Google Patents

Abstract

A mobile station, an area quality management system, and an area quality management method capable of sufficiently collecting information necessary for designing an area managed by a base station.
A mobile station that can be connected to a mobile communication network generates communication status information including at least a factor that prevents connection to the mobile communication network (factor that cannot be connected) when the mobile station cannot connect to the mobile communication network. A generation unit 12, a location information acquisition unit 13 that acquires location information of a mobile station when the communication status information is generated, and a storage unit 14 that stores the communication status information and the location information in association with each other.
[Selection] Figure 2

Description

  The present invention relates to a mobile station that collects quality of an area managed by a base station, an area quality management system, and an area quality management method.

  2. Description of the Related Art Conventionally, as a method for managing area quality in a mobile communication network, a method using a measurement vehicle equipped with a radio wave measurement device and GPS is known. Specifically, the measurement vehicle stores the radio wave intensity measured by the radio wave measurement device in association with the position information measured by the GPS. An area quality management device such as a personal computer manages area quality in a mobile communication network by plotting radio field intensity on a map using radio field intensity and position information.

  On the other hand, since the area into which the measurement vehicle can enter is limited, in areas where the measurement vehicle cannot enter, the radio wave intensity and the position information are acquired by a walking survey of an operator who possesses the radio wave measurement device and GPS.

For example, a method using a mobile station as an apparatus for measuring a change in reception level or bit error rate has been proposed. Specifically, the mobile station reports changes in the reception level and bit error rate (quality information) to the area quality management device together with the position information (for example, Patent Document 1).
Japanese Patent No. 3344365 (Claim 1, [0024], [0025], etc.)

  However, in the above-described conventional technology, quality information (change in reception level and bit error rate) is collected on the assumption that a mobile station can be connected to a mobile communication network. Therefore, in the above-described conventional technology, information necessary for designing an area managed by the base station cannot be sufficiently collected.

  Specifically, since an environment in which a mobile station can be connected to a mobile communication network is desired anytime and anywhere, it is important to grasp a time zone and a position where the mobile station cannot be connected to the mobile communication network.

  Therefore, the present invention has been made to solve the above-described problems, and a mobile station and area quality that can sufficiently collect information necessary for designing an area managed by a base station. An object is to provide a management system and an area quality management method.

  In one aspect of the present invention, a mobile station connectable to a mobile communication network includes a generation unit (communication status information generation unit 12) that generates communication status information including at least a factor that prevents connection to the mobile communication network, and the generation A location acquisition unit (location information acquisition unit 13) that acquires location information of the mobile station when the communication status information is generated by a unit, the communication status information generated by the generation unit, and the location acquisition unit And a storage unit (storage unit 14) that stores the location information acquired in association with each other.

  According to this feature, the mobile station stores communication status information including at least a factor that prevents connection to the mobile communication network. That is, not only the quality information (change in reception level and bit error rate) collected on the assumption that the mobile station can be connected to the mobile communication network, but also the factors that prevent the mobile station from connecting to the mobile communication network. be able to. Therefore, it is possible to sufficiently collect information necessary for designing the area managed by the base station.

  In the above-described feature of the present invention, it further includes a time acquisition unit that acquires time zone information when the communication status information is generated by the generation unit, and the storage unit acquires the time acquired by the time acquisition unit. It is preferable to store band information in association with the communication status information and the position information.

  In the above feature of the present invention, information stored in the storage unit via the mobile communication network for an area quality management device that manages the quality of an area managed by a base station included in the mobile communication network It is preferable to further include a transmission unit (communication unit 15) for transmitting.

  In one aspect of the present invention, in an area quality management system including a mobile station connectable to a mobile communication network and an area quality management device that manages the quality of an area managed by a base station included in the mobile communication network, The mobile station generates a communication information information including at least a factor that cannot be connected to the mobile communication network (communication status information generation unit 12), and the movement when the communication information is generated by the generation unit. A location acquisition unit (location information acquisition unit 13) that acquires station location information, the communication status information generated by the generation unit, and the location information acquired by the location acquisition unit are stored in association with each other. A storage unit (storage unit 14), wherein the area quality management device receives the communication status information and the location information from the mobile station. And a reception unit (communication unit 51) that receives via the mobile communication network, and a management unit (quality information generation) that manages the quality of the area managed by the base station using the communication status information and the location information. Part 53).

  In one aspect of the present invention, an area quality management method for managing the quality of an area managed by a base station included in a mobile communication network includes communication status information including at least a factor that prevents the mobile station from connecting to the mobile communication network. Step A for generating, Step B for obtaining the location information of the mobile station when the communication status information is generated in Step A, the communication status information generated in Step A, and Step B Step C for storing the acquired location information in association with each other, Step for managing the quality of the area managed by the base station using the communication status information and the location information stored in Step C D.

  According to the present invention, it is possible to provide a mobile station, an area quality management system, and an area quality management method that can sufficiently collect information necessary for designing an area managed by a base station.

  Hereinafter, an area quality management system according to an embodiment of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals.

  However, it should be noted that the drawings are schematic and ratios of dimensions are different from actual ones. Therefore, specific dimensions and the like should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.

[First Embodiment]
(Configuration of area quality management system)
Hereinafter, the configuration of the area quality management system according to the first embodiment will be described with reference to the drawings. FIG. 1 is a schematic diagram showing a configuration of an area quality management system according to the first embodiment.

  As shown in FIG. 1, the area quality management system includes a mobile station 10, a plurality of base stations 20 (base station 20a and base station 20b), a base station control device 30, a core network 40, and an area quality management server. 50.

  The mobile station 10 moves between areas managed by each base station 20. The mobile station 10 monitors the communication status between the mobile station 10 and the mobile communication network (base station 20). In addition, the mobile station 10 generates communication status information indicating the communication status, and transmits the communication status information to the mobile communication network (base station 20).

  The communication status includes the reception intensity of the signal received from the base station 20 provided in the area where the mobile station 10 is located (hereinafter referred to as the located area) in a state where the mobile station 10 can be connected to the mobile communication network, For example, the received intensity (interference amount) of a signal received from the base station 20 provided in an area adjacent to the area (hereinafter referred to as an adjacent area).

  The communication status is a factor that prevents the mobile station 10 from connecting to the mobile communication network when the mobile station 10 cannot connect to the mobile communication network (hereinafter referred to as a connection impossible factor). The connection failure factors are that the mobile station 10 failed to perform handover when performing handover between a plurality of base stations 20, that a network error occurred when the mobile station 10 made and received calls, and that the mobile station 10 For example, the radio wave received from the base station 20 when making / receiving a call is too weak.

  Details of the mobile station 10 will be described later (see FIG. 2).

  The base station 20 manages an area (the mobile station 10 located in the area). For example, the base station 20a manages area 1 (mobile station 10 located in area 1). On the other hand, the base station 20b manages area 2 (mobile station 10 located in area 2).

  The base station control device 30 manages a plurality of base stations 20. Further, the base station control device 30 manages the mobile station 10 managed by the base station 20. For example, the base station control device 30 controls radio resources assigned to the mobile station 10 in communication performed between the base station control device 30 and the mobile station 10.

  The core network 40 includes a circuit switch (MSC), a packet switch (SGSN), and the like. A base station control device 30 is connected to the core network 40.

  It should be noted that the base station 20, the base station control device 30, and the core network 40 constitute a mobile communication network.

  The area quality management server 50 is connected to the core network 40 and manages the quality of the area managed by the base station 20. Specifically, the area quality management server 50 receives communication status information from the mobile station 10 via the mobile communication network. The area quality management server 50 manages the quality of the area managed by the base station 20 based on the communication status information received from the mobile station 10.

  Details of the area quality management server 50 will be described later (see FIG. 3).

(Configuration of mobile station)
The configuration of the mobile station according to the first embodiment will be described below with reference to the drawings. FIG. 2 is a block diagram showing a configuration of the mobile station 10 according to the first embodiment.

  As illustrated in FIG. 2, the mobile station 10 includes a trigger detection unit 11, a communication status information generation unit 12, a position information acquisition unit 13, a storage unit 14, and a communication unit 15.

  The trigger detection unit 11 detects a trigger for starting generation of communication status information. The trigger is that a certain period of time has elapsed since the generation of the communication status information, that the reception intensity of a signal (such as a notification signal) received from the base station 20 provided in the area where the service area is located is equal to or less than a certain intensity, For example, handover is performed between the base stations 20, and the mobile station 10 makes and receives calls.

  The communication status information generation unit 12 generates communication status information when a trigger is detected by the trigger detection unit 11.

  The communication status information includes the reception strength of the signal received from the base station 20 provided in the area where the mobile station 10 is connectable to the mobile communication network, and the signal received from the base station 20 provided in the adjacent area. Reception strength (interference amount), SIR (Signal to Interference Ratio), SINR (Signal to Noise and Interference Ratio), BER (Bit Error Rate), BLER (Block Error Rate), and the like.

  The communication status information is a factor that prevents the mobile station 10 from connecting to the mobile communication network (a factor that prevents connection) when the mobile station 10 cannot connect to the mobile communication network. The connection failure factors are that the mobile station 10 failed to perform handover when performing handover between a plurality of base stations 20, that a network error occurred when the mobile station 10 made and received calls, and that the mobile station 10 For example, the radio wave received from the base station 20 when making / receiving a call is too weak.

  The position information acquisition unit 13 acquires the position information of the mobile station 10 when a trigger is detected by the trigger detection unit 11. For example, the position information acquisition unit 13 has a GPS function, and acquires position information by the GPS function. Note that the location information acquisition unit 13 may acquire the identifier of the base station 20 provided in the located area as location information.

  The storage unit 14 stores the communication status information generated by the communication status information generation unit 12 and the location information acquired by the location information acquisition unit 13 in association with each other. The storage unit 14 may store the communication status information and the position information in association with each other only when the mobile station 10 cannot connect to the mobile communication network.

  The communication unit 15 transmits the communication status information generated by the communication status information generation unit 12 and the position information acquired by the position information acquisition unit 13 to the base station 20. Specifically, if the mobile station 10 can be connected to the mobile communication network, the communication unit 15 transmits communication status information and position information to the base station 20 when a trigger is detected by the trigger detection unit 11. To do.

  On the other hand, if the mobile station 10 cannot connect to the mobile communication network, the communication unit 15 waits until the mobile station 10 can connect to the mobile communication network and is stored in the storage unit 14. The communication status information and the position information are transmitted to the base station 20.

(Configuration of area quality control device)
The configuration of the area quality management apparatus according to the first embodiment will be described below with reference to the drawings. FIG. 3 is a block diagram showing the configuration of the area quality management server 50 according to the first embodiment.

  As shown in FIG. 3, the area quality management server 50 includes a communication unit 51, a storage unit 52, and a quality information generation unit 53.

  The communication unit 51 receives communication status information and position information from the mobile station 10 via the mobile communication network.

  The storage unit 52 stores communication status information and position information received from the mobile station 10.

  The quality information generation unit 53 generates area quality information indicating the quality of the area managed by the base station 20 based on the communication status information and the position information stored in the storage unit 52. Specifically, the quality information generation unit 53 specifies each position specified by the position information on the map, and plots each communication status information at each position on the specified map. That is, the area quality information is communication status information plotted at each position on the map.

  Here, the area quality information managed by the area quality management server 50, that is, the communication status information plotted at each position on the map is used for designing the area managed by the base station 20. For example, the area quality information is used to determine a position where a new base station 20 is to be installed, a new base station 20 capability (such as maximum transmission power), and an existing base station 20 capability (such as maximum transmission power). Used.

(Operation of area quality control system)
Hereinafter, the operation of the area quality management system according to the first embodiment will be described with reference to the drawings. FIG. 4 is a sequence diagram showing the operation of the area quality management system according to the first embodiment. In FIG. 4, a case where the mobile station 10 transitions from a state in which the mobile station 10 cannot connect to the mobile communication network to a state in which the mobile station 10 can connect to the mobile communication network will be described as an example.

  As shown in FIG. 4, in step 101, the mobile station 10 detects a trigger for starting generation of communication status information.

  In step 102, the mobile station 10 generates communication status information. As described above, it should be noted that the communication status information includes a factor that the mobile station 10 could not connect to the mobile communication network. Subsequently, the mobile station 10 acquires the position information of the mobile station 10. Further, the mobile station 10 stores the communication status information and the position information in association with each other until at least the mobile station 10 becomes connectable to the mobile communication network.

  In step 103, the mobile station 10 waits until the mobile station 10 becomes connectable to the mobile communication network, and transmits the communication status information and the position information to the mobile communication network.

  In step 104, the mobile communication network acquires communication status information and position information from the mobile station 10.

  In step 105, the mobile communication network transmits communication status information and position information to the area quality management server 50.

  In step 106, the area quality management server 50 stores the communication status information and the position information received via the mobile communication network.

  It should be noted that the processing from step 101 to step 106 is repeated until sufficient communication status information for generating area quality information is collected.

  In step 107, the area quality management server 50 generates area quality information based on the communication status information and position information stored in step 106. Specifically, the area quality management server 50 specifies each position specified by the position information on the map, and plots each communication status information at each position on the specified map.

(Function and effect)
According to the area quality management system according to the first embodiment, the mobile station 10 stores communication status information including at least a factor that prevents connection to the mobile communication network. That is, not only the quality information (signal strength and amount of interference) collected on the assumption that the mobile station 10 can be connected to the mobile communication network, but also the factors that the mobile station 10 cannot connect to the mobile communication network (impossible to connect) Factor) can be collected.

  Therefore, in order to provide the user with an environment where the mobile station can connect to the mobile communication network anywhere, it is possible to sufficiently collect information necessary for designing the area managed by the base station.

  According to the area quality management system according to the first embodiment, since the mobile station 10 transmits the communication status information to the area quality management server 50 via the mobile communication network, it is easy to collect the communication status information.

[Second Embodiment]
The second embodiment will be described below with reference to the drawings. In the following, differences between the first embodiment and the second embodiment described above will be mainly described.

  Specifically, in the first embodiment described above, area quality information is generated using communication status information and position information. On the other hand, in the second embodiment, area quality information is generated using time zone information in addition to communication status information and position information.

(Configuration of mobile station)
The configuration of the mobile station according to the second embodiment will be described below with reference to the drawings. FIG. 5 is a block diagram showing a configuration of the mobile station 10 according to the second embodiment. In FIG. 5, it should be noted that the same components as those in FIG.

  As illustrated in FIG. 5, the mobile station 10 includes a time zone information acquisition unit 16 in addition to the configuration illustrated in FIG. 2.

  When the trigger detection unit 11 detects a trigger, the time zone information acquisition unit 16 acquires time zone information indicating the time zone in which the trigger detection unit 11 detects the trigger. For example, the time zone information acquisition unit 16 has a clock function, and acquires time zone information by the clock function.

  The storage unit 14 stores the time zone information acquired by the time zone information acquisition unit 16 in association with the communication status information and the position information.

  The communication unit 15 transmits the time zone information acquired by the time zone information acquisition unit 16 to the base station 20 in addition to the communication status information and the position information.

  The area quality management server 50 receives time zone information from the mobile station 10 via the mobile communication network in addition to the communication status information and the position information. The area quality management server 50 generates area quality information for each time period.

  Here, the area quality information generated for each time slot is used to determine the capability (maximum transmission power, etc.) of the base station 20 in each time slot.

(Function and effect)
According to the area quality management system according to the second embodiment, the mobile station 10 stores time zone information in addition to communication status information and position information. Therefore, area quality information can be generated for each time period.

  Therefore, in order to provide the user with an environment where the mobile station can connect to the mobile communication network anytime and anywhere, it is possible to sufficiently collect information necessary for designing the area managed by the base station.

[Other Embodiments]
Although the present invention has been described with reference to the above-described embodiments, it should not be understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

  In the embodiment described above, the area quality management server 50 receives various types of information from the mobile station via the mobile communication network, but is not limited to this. The area quality management server 50 may acquire various types of information stored in the mobile station through a route different from the mobile communication network.

It is the schematic which shows the structure of the area quality management system which concerns on 1st Embodiment. It is a block diagram which shows the structure of the mobile station 10 which concerns on 1st Embodiment. It is a block diagram which shows the structure of the area quality management server 50 which concerns on 1st Embodiment. It is a sequence diagram which shows operation | movement of the area quality management system which concerns on 1st Embodiment. It is a block diagram which shows the structure of the mobile station 10 which concerns on 2nd Embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Mobile station, 11 ... Trigger detection part, 12 ... Communication condition information generation part, 13 ... Position information acquisition part, 14 ... Memory | storage part, 15 ... Communication part, 16 * ..Time zone information acquisition unit, 20 ... base station, 30 ... base station controller, 40 ... core network, 50 ... area quality management server, 51 ... communication unit, 52 ... .Storage unit, 53... Quality information generation unit

Claims (5)

A mobile station connectable to a mobile communication network,
A generation unit that generates communication status information including at least a factor that cannot be connected to the mobile communication network;
A location acquisition unit that acquires location information of the mobile station when the communication status information is generated by the generation unit;
A mobile station comprising: a storage unit that stores the communication status information generated by the generation unit in association with the position information acquired by the position acquisition unit. A time acquisition unit for acquiring time zone information when the communication status information is generated by the generation unit;
The mobile station according to claim 1, wherein the storage unit stores the time zone information acquired by the time acquisition unit in association with the communication status information and the position information.   A transmission unit that transmits information stored in the storage unit via the mobile communication network to an area quality management device that manages the quality of an area managed by a base station included in the mobile communication network. The mobile station according to claim 1. An area quality management system including a mobile station connectable to a mobile communication network and an area quality management device for managing the quality of an area managed by a base station included in the mobile communication network,
The mobile station
A generation unit that generates communication status information including at least a factor that cannot be connected to the mobile communication network;
A location acquisition unit that acquires location information of the mobile station when the communication status information is generated by the generation unit;
A storage unit that stores the communication status information generated by the generation unit in association with the position information acquired by the position acquisition unit;
The area quality control device
A receiver that receives the communication status information and the location information from the mobile station via the mobile communication network;
An area quality management system comprising: a management unit that manages the quality of an area managed by the base station using the communication status information and the location information. An area quality management method for managing the quality of an area managed by a base station included in a mobile communication network,
Generating communication status information including at least a factor that a mobile station cannot connect to the mobile communication network; and
Step B for obtaining position information of the mobile station when the communication status information is generated in Step A;
Step C for storing the communication status information generated in Step A and the position information acquired in Step B in association with each other;
An area quality management method comprising the step D of managing the quality of the area managed by the base station using the communication status information and the position stored in the step C.

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