JP2002271833A - Communication quality maintenance method for service area in mobile communication system, and its mobile communication terminal and management server system - Google Patents

Communication quality maintenance method for service area in mobile communication system, and its mobile communication terminal and management server system

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Publication number
JP2002271833A
JP2002271833A JP2001061930A JP2001061930A JP2002271833A JP 2002271833 A JP2002271833 A JP 2002271833A JP 2001061930 A JP2001061930 A JP 2001061930A JP 2001061930 A JP2001061930 A JP 2001061930A JP 2002271833 A JP2002271833 A JP 2002271833A
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Japan
Prior art keywords
mobile communication
communication
error information
information
management server
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JP2001061930A
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Japanese (ja)
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JP3588056B2 (en
Inventor
Yuichi Negishi
Fumio Yoshida
文雄 吉田
裕一 根岸
Original Assignee
Ntt Comware Corp
エヌ・ティ・ティ・コムウェア株式会社
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Priority to JP2001061930A priority Critical patent/JP3588056B2/en
Publication of JP2002271833A publication Critical patent/JP2002271833A/en
Application granted granted Critical
Publication of JP3588056B2 publication Critical patent/JP3588056B2/en
Application status is Expired - Fee Related legal-status Critical
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Abstract

(57) [Summary] [PROBLEMS] To acquire quality information together with location information from a mobile communication terminal device actually used by a user without going to the site, and to maintain and improve communication quality in a service area. SOLUTION: When a communication failure occurs in the mobile device 1 outside the service area or in a place where the radio wave condition is bad, the mobile device 1 accumulates the time, place, and factor of the communication abnormality in a built-in storage device, and Then, when the transmission is successful and the transmission is successful, the accumulated error information is transmitted to the network. In the network, it transfers the error information received to the management server system 3, the management server system 3, time, location, performs statistical processing by factors communication abnormality, for its improvement by analyzing points of quality problems Determine the effectiveness of

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention sends quality information such as electric field strength from a mobile communication terminal actually used by a user to a site in order to efficiently maintain communication quality in a service area. The present invention relates to a method for maintaining communication quality in a service area in a mobile communication system, a mobile communication terminal device, a management server system, and a recording medium on which the method is programmed and which can be obtained without any problem.

[0002]

2. Description of the Related Art In recent years, with the progress of the information society, the social structure and the range of people's activities have been diversified and expanded, and the role played by mobile communication has become more and more important. Mobile phone or P
HS (simplified mobile phone system), PDA (Personal
With the spread of Digital Assistants, the demand for radio waves for mobile communications is rapidly increasing. By the way, the service area in the above-mentioned mobile communication has a great influence on the quality due to the surrounding environment of the wireless section, and it is necessary to constantly check and maintain the quality. Traditionally, this quality maintenance has been performed by determining from complaints from users and quality information obtained from wireless networks.

[0003]

However, the complaint from the user is only a part of the information and the location is ambiguous, and it is necessary to confirm the meaning by actually going to the site. Was. In addition, the information obtained from the network is, of course, information relating to information that can be communicated with the network, and a state in which communication with the network cannot be performed cannot be grasped. Therefore, the effect of quality improvement cannot be quantitatively determined, and it has been difficult to efficiently develop service areas and maintain and manage quality.

[0004] The present invention has been made in view of the above circumstances, and in order to efficiently maintain and manage a service area, quality information such as electric field strength and the like from a terminal device actually used by a user together with position information. Method for maintaining service area communication quality in a mobile communication system that enables the selection of various measurement points for maintaining the service area quality and the collection of basic information regarding the expansion of the service area by acquiring the service area without going to the site It is another object of the present invention to provide a mobile communication terminal device, a management server system, and a recording medium in which the method is programmed and recorded.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a method for maintaining communication quality in a service area in a mobile communication system in which a mobile communication terminal and a management server system are connected to a wireless communication network. there are, the mobile when it in the communication terminal device with the communication error, the accumulated error information indicating a communication abnormality factors in the storage device, the stored the error data wireless communication network when a successful outgoing to provide a communication quality maintenance method of a service area in a mobile communication system for transferring to the management server system via.

The present invention also relates to a method for maintaining communication quality of a service area in the above mobile communication system.
The error information includes at least time information, communication quality information at the time of communication abnormality, and position information measured by GPS (Global Positioning System).

Further, the present invention is a communication quality maintenance method of the service area in the mobile communication system,
In the accumulation of the error information, if the position information cannot be measured by the GPS, the mobile communication terminal does not accumulate the position information or collects the position information periodically and cannot measure the position information. And storing the position information immediately before the error information as the error information.

[0008] The present invention also provides a method for maintaining communication quality in a service area in the above mobile communication system.
The communication quality information at the time of the communication abnormality is information indicating whether the timing of the communication abnormality occurrence is during transmission or during communication,
It is characterized by electric field strength level information at the time of communication abnormality and information on the presence or absence of a control channel at the time of transmission.

[0009] Further, the present invention, in order to solve the above-mentioned problems, is a method of maintaining communication quality of a service area in a mobile communication system in which a mobile communication terminal device is connected to a management server system via a wireless communication network. The error information indicating the location information and communication quality at the time of communication abnormality transmitted from the mobile communication terminal device when communication is normal, performing statistical processing based on the error information, and obtaining a channel obtained from the wireless communication network. The present invention provides a method for maintaining the communication quality of a service area in a mobile communication system, which calculates an appropriate number of channel demands from the usage rate of a communication area.

[0010] The present invention also relates to a method for maintaining communication quality of a service area in the mobile communication system.
The calculation of the appropriate number of channel demands is such that the error information received from the mobile communication terminal device is tabulated for each existing service area based on the time, position, and factor type information as its parameters. At
Extracting the number of mobile communication terminal devices in which communication was abnormal due to absence of an empty channel while radio waves were received, and using the channel usage rate and the number of mobile communication terminal devices obtained from the wireless communication network, It is characterized by being calculated.

[0011] The present invention also provides a method for maintaining communication quality of a service area in the above mobile communication system.
In the calculation of the appropriate number of channel demands, in the calculation of the number of demands outside the existing service area, the number of error information generated outside the service area is regarded as the number of demands, and the required number of channels is calculated from the number of demands. It is characterized by.

Further, the present invention provides a mobile communication terminal in a mobile communication system connected to a management server system via a wireless communication network, the mobile communication terminal being adapted to receive GPS radio waves. A GPS receiving unit that captures current position information, an error information storage unit that stores communication quality information indicating a cause of a communication error including the current position information when a communication error occurs, and an error information storage unit that stores the communication quality information when the communication is normal. An error information transfer unit for transferring communication quality information indicating a cause of a communication abnormality to the management server system via the wireless communication network is provided.

The present invention also relates to a management server system in a mobile communication system connected to a mobile communication terminal device and a wireless communication network, wherein the management server system is transmitted from the mobile communication terminal device when communication is normal. A mobile communication system comprising: an error information receiving unit that obtains status information; and a demand number calculation unit that performs statistical processing based on the status information and calculates an appropriate traffic from a channel usage rate obtained from the wireless communication network. to provide a management server system in.

In the above configuration, when the mobile communication terminal has a communication error outside the service area or at a location where the radio wave condition is bad, the mobile communication terminal device displays the time, place, and cause of the communication error in the error information. The error information is stored in the storage unit, and when the communication can be normally performed, the stored error information is transmitted to the network by the error information transfer unit. In the network, the received error information is transferred to the management server system, and the management server system performs statistical processing based on the time, location, and causes of communication abnormalities, analyzes points with quality problems, and makes effective improvements for the improvement. Determine gender. As a result, quality information such as electric field strength and the like can be obtained from the mobile communication terminal device actually used by the user without going to the site, and various measurement points for maintaining the quality of the service area can be obtained. Collection of basic information on selection and expansion of service area can be enabled.

Further, the present invention, in order to solve the above-mentioned problem, is a terminal program used in a mobile communication terminal device in a mobile communication system connected to a management server system via a wireless communication network, The terminal program stores, when a communication error occurs in the mobile communication terminal device, a first step of storing information indicating the status in a storage device, and information indicating the status stored in the storage device when the communication is normal. And a second step of transferring to the management server system via the wireless communication network.

Further, the present invention is characterized in that in the above terminal program, the first step includes a step of judging whether or not the call can be made at the time of making a call, The step of determining
When it is determined that transmission is impossible during the transmission or when disconnection due to an abnormality during the communication, an error situation including the current position is acquired, and for a certain period of time, the presence or absence of error information stored in the storage device in the same area and determining, check the free space of the storage device when it is determined that no accumulating the error information, to include a step of overwriting the oldest error information when there is no empty region Features.

Further, according to the present invention, in the above-mentioned terminal program, the second step refers to the step of checking whether or not there is error information by referring to the storage device when communication is normal, and stores the error information in the storage device. And transmitting the error information when the error information has been transmitted, and clearing the error information after the error information is transmitted. Further, the present invention provides a computer-readable recording medium recording the above terminal program.

Further, the present invention provides a management server program used in a management server system in a mobile communication system connected to a mobile communication terminal device and a wireless communication network, in order to solve the above-mentioned problems. A server program for transmitting error information indicating a situation at the time of abnormal communication, transmitted from the terminal device when communication is normal, performing a statistical process based on the error information, and obtaining a channel obtained from the wireless communication network. And a second step of calculating an appropriate channel demand number from the usage rate of the computer.

Further, in the above-mentioned management server program, the second step may be such that the error information received from the mobile communication terminal device is determined on the basis of time, position, and factor type information as parameters thereof. Counting the number of mobile communication terminals in the existing service area, in which the radio waves reach but there is no free channel, and the communication is abnormal. Calculating the required number of channels from the channel usage rate and the number of mobile communication terminals to be used.

[0020] In the above-mentioned management server program, the second step may be a step of calculating the number of pieces of error information occurring outside the service area in the calculation of the demand outside the existing service area. Calculating the required number of channels from the number of demands, using the calculated number of error information as the number of demands. Further, the present invention provides a computer-readable recording medium recording the above management server program.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram cited for explaining a connection form of a mobile communication system for realizing a communication quality maintaining method of a service area in the mobile communication system according to the present invention.

In FIG. 1, reference numeral 1 denotes a mobile communication terminal device (hereinafter, simply referred to as a mobile device 1) typified by a mobile phone or a PHS having a built-in GPS. And management server system 3
Connected to.

The general operation of the above connection mode is as follows. That is, first, the mobile device 1
When a communication error occurs outside the service area or at an interference point caused by a plurality of bases, error information e indicating the time, position, and cause type is stored in a storage device incorporated in the mobile device 1 (). The storage capacity of the storage device is set to a level at which the error information e at the time of communication abnormality can be stored at a plurality of points, and when the capacity is insufficient, the oldest data is overwritten. Thereafter, the same mobile station 1 moves to a service area where the same mobile station 1 can communicate and makes a call (). If the communication is normally performed, the error information e accumulated at the time of the previous communication error is transmitted to the network 2 The data is transferred to the management server system 3 through the facility (). When the transfer of the error information to the management server system 3 is completed, the mobile device 1 deletes the error information e on the mobile device 1 side.

The management server system 3 performs an analysis based on the error information obtained from the mobile device 1, and predicts the location of the problem and the number of channel demands due to improvement ().
Based on these analyses, places to be improved are selected and appropriate measures are taken.

FIG. 2 is a block diagram showing the internal configuration of mobile unit 1 in FIG. In FIG. 2, reference numeral 11 denotes a CPU serving as a control center of the mobile device 1, which controls each block described later by sequentially reading and executing a program recorded in a memory 12. Reference numeral 13 denotes an input / output control unit which controls input / output of a key switch and a display connected under the control of the CPU 11. In addition, also performs input control of voice. 14 is a GPS receiver receives radio waves by the GPS satellites, and outputs the current position information of the mobile station 1 (latitude / longitude) on the CPU 11. Reference numeral 15 denotes a transmission / reception control unit that controls outgoing / incoming calls, and reference numeral 16 denotes a timer LSI.

The CPU 11 stores the current position information of the mobile device 1 obtained via the GPS receiver 14 and the timer LSI 1
6, and generates error information using quality information such as the level of the electric field strength as a parameter when a communication error occurs, for example, as a parameter.
To accumulate. The format of the error information shown in FIG.

As shown in FIG. 3, the error information includes current time information, latitude / longitude information, factor type information, and quality information (base station identification information, electric field strength level, etc.), which are stored in a memory capacity Xn. Is done. The current time is obtained from the timer LSI 16 as described above, and the latitude / longitude information is
Obtained via the S receiving unit 14. Also, here, it is assumed that there are three types of type information,
(A) information indicating whether the timing of occurrence of a communication error is during transmission or communication, (b) information indicating that the electric field strength is 0 or at a low level, and (c) information regarding the presence or absence of a control channel. When the electric field strength is other than 0, base station identification information and electric field strength level information are added as quality information.

Returning to the description of FIG.
The memory 12, the input / output control unit 13, the GPS reception unit 14, the transmission / reception control unit 15, and the timer LSI 16 are commonly connected to an internal bus 17 including a plurality of lines for address, data, and control.

FIG. 4 is a block diagram showing functions of the internal configuration of the management server system shown in FIG. Each block shown here is specifically configured by a peripheral LSI including a CPU and a memory, and the CPU realizes the functions of the block by reading out and sequentially executing programs recorded in the memory.

The management server system 3 functionally comprises an interface unit 31, an error information receiving unit 32, and a channel demand number calculating unit 33. Interface unit 31
Is a part that controls the protocol with the wireless communication network 2. The error information receiving unit 32 has a function of acquiring error information at the time of communication abnormality transmitted from the mobile device 1 when communication is normal, and storing the error information in the error information table 34. The channel demand number calculation unit 33 performs statistical processing described later by referring to the error information stored in the error information table 34, and obtains the channel usage rate (ρ) of each service area obtained from the network equipment such as the exchange 4 or the like. And has a function of calculating an appropriate number of channel demands. The usage rate of the channel obtained from the network equipment such as the exchange 4 is stored in the network data table 35.

[0031] FIGS. 5-8 is a diagram that is referred to in order to explain the operation of the present invention exemplary type embodiment shown in FIGS. 1-4, the processing procedure at the time of calling by the mobile unit 1, the mobile device 1 exchanges 4 shows a data exchange procedure between the management server systems 3 and a processing procedure by the management server system 3. Hereinafter, the operation of the embodiment of the present invention will be described in detail with reference to the flowcharts shown in FIGS.

First, the operation of the mobile device 1 will be described with reference to the flowcharts shown in FIGS. FIG.
FIG. 6 shows a processing procedure when transmission is failed, and FIG. 6 shows a processing procedure when transmission is successful. In FIG. 5, the user first performs a call operation via the input / output control unit 13 and the transmission / reception control unit 15 by operating a key switch of the mobile device 1 (step S5).
1). Here, the CPU 11 determines whether or not transmission is possible (step S52).
The current time is fetched via I16, the current position information (latitude / longitude) is fetched via the GPS receiver 14, and the factor type and quality information are generated (step S57).

Then, within a certain period of time, the presence or absence of accumulated information in the same area is checked, and the empty area of the memory 12 is confirmed (steps S58 and S59), and the error information taken in earlier is accumulated and stored in the empty area. (Step S
61). If no free area exists, the oldest data is overwritten to accumulate error information including the current time and current position information (step S6).
0). Here, in the processing in step S58, the determination of the presence or absence of accumulated information in the same area within a certain period of time is a measure for preventing accumulation of error information due to meaningless repetitive transmission. For example, it is assumed that screening is performed within 30 minutes and within a radius of 100 meters based on criteria. In addition, G
If the position information cannot be measured by the PS, the position information is not accumulated, or the position information is periodically collected and error information including the position information immediately before the position information cannot be measured is accumulated. .

On the other hand, if the transmission is possible, the call is established and the communication state is set (steps S53 and S54). If a communication error occurs during the communication and the communication is disconnected (step S55), the reason for the disconnection is determined (step S56). If the communication is intentionally disconnected, the process ends normally.
If not, the process from step S58 is executed.

Next, transmission of error information stored in the memory 12 from the mobile device 1 will be described with reference to FIG. First, the user operates the mobile device 1 to perform a calling operation (step S62). The CPU 11 determines whether or not transmission is possible (step S63).
2 to check for error information (step S64). If there is error information, the error information is transferred (step S65), and the transferred error information is cleared (step S66). Then, a normal communication state is set. If the existence of the error information is not found as a result of the error information presence / absence check, the communication state is set directly. The transmission of the error information from the mobile device 1 may be performed not only at the time of outgoing call but also at the time of incoming call. That is, in a state where communication is normally performed, the mobile device 1 transmits the accumulated error information.

FIG. 7 is a sequence chart cited for explaining the flow of data exchange between the above-mentioned mobile device 1, exchange 4 and management server system 1. Here, first, the mobile device 1 sets up a call and transmits error information when a call is successfully made or a call is received in the procedure described above (step S71). The manner and timing of transmission of the error information is not particularly defined, but the error information is transmitted during the call establishment sequence, or the transfer server is provided with a transfer sequence different from the call establishment sequence to provide the management server via the exchange 4. It shall be transferred to the system 3.

The exchange 4 transfers the received error information and terminal identification information to the management server system 3 (steps S72 and S73). In the management server system 3, the error information receiving unit 32 receives the error information and the terminal identification information from the mobile device 1 via the exchange 4 (step S7).
4) Store and store in the error information table 34 (step S75). Next, the management server system 3
The channel usage rate (ρ) in each service area is obtained as network data from the network equipment such as, and the channel demand number calculation unit 33 predicts the channel demand number for analysis (step S76). It will be described later prediction of the number of channels demand. In the following, it is assumed that the number of mobile units 1 that have received radio waves but failed to communicate due to lack of channels is k. Note that a state in which communication is not possible due to lack of channels is assumed to include a case where an attempt is made to make a call in a service area where channels are insufficient, a case where a handover is performed from another service area to a service area where channels are insufficient during communication, and the like. that.

An example of analysis by the management server system 3
Here, the prediction of the channel demand number will be described with reference to the flowchart shown in FIG. The prediction of the traffic demand can be calculated based on the channel usage rate (ρ) in the target service area and the number k of the mobile devices 1 that could not communicate due to lack of channels. Further, in the present invention, the number k of mobile units 1 that could not communicate due to lack of control channels even when radio waves arrived can be determined by using the error information stored in the error information table 34. Therefore, the usage rate (ρ) of the channel in the target service area and the number k of mobile units 1 that could not communicate due to lack of channels in the service area.
Is used to calculate the required number of channels.

That is, the channel demand number calculator 33 of the management server system 3 first sets the error information table 34
, The error information acquired from the mobile device 1 via the error information receiving unit 32 is statistically processed.
More specifically, the total is calculated based on the location (appropriate service area α) and the cause type such as communication failure due to lack of control channel (step S81). Then, it is determined whether the mobile station 1 is inside or outside the existing service area (SA) based on the current location information (step S82). Here, when the information is in the existing service area, and when there is information on a special situation such as a network failure or construction in the service area (step S83), k of the time related to the corresponding time zone and position is determined. The number is corrected in consideration of the special circumstances (step S8).
4).

Next, the channel demand number calculation unit 33 obtains the usage rate (ρ) of the channel in the service area stored in the network data table 35, the number of channels available in the service area, and the like. calculating the number of required channel and a number of k was (step S8
6). On the other hand, in the case of outside the existing service area, the number of error information outside the service area itself can be regarded as the required number of demands. the area setting made optimal utilization of (the number of base stations) determined by changing the inclusion relation alpha (step S88). Depending on the number of demands outside the service area, the service area may be optimized by adding base stations or the like.

As described above, according to the present invention, in order to efficiently maintain the service area, quality information such as electric field strength and the like along with the position information from the mobile station 1 actually used by the user are sent to the site. By acquiring without going, it is possible to select various measurement points for maintaining the quality of the service area and to collect basic information regarding expansion of the service area.

The interface unit 3 shown in FIG.
1. Error information receiving unit 32, channel demand number calculating unit 33
Are recorded on a computer-readable recording medium, and the program recorded on this recording medium is read by a computer system constituting the management server system 3. By sequentially reading and executing the programs, a system for realizing the communication quality maintaining method of the service area in the mobile communication system of the present invention is constructed. The computer system referred to here includes an OS and hardware such as peripheral devices.

Further, the computer system includes a homepage providing environment (or a display environment) if a WWW system is used. The computer-readable recording medium includes a floppy (registered trademark) disk, a magneto-optical disk, a ROM, and a CD.
-A storage medium such as a portable medium such as a ROM or a hard disk built in a computer system. Further, the computer-readable recording medium is a volatile memory (RA) in a computer system that is a server or a client when a program is transmitted through a network such as the Internet or a communication line such as a telephone line.
As shown in M), a program holding a program for a certain period of time is also included.

The above program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the "transmission medium" for transmitting a program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. Further, the program may be for realizing a part of the functions described above. further,
What can realize the above-mentioned function in combination with a program already recorded in the computer system, that is, a so-called difference file (difference program) may be used.

Although the embodiments of the present invention have been described in detail with reference to the drawings, the specific configuration is not limited to the embodiments and includes a design and the like within a range not departing from the gist of the present invention. It is.

[0046]

As described above, according to the present invention, in order to efficiently maintain and manage the service area, the quality information such as the electric field strength together with the position information is obtained from the mobile communication terminal actually used by the user. By acquiring without going to the site, it is possible to select various measurement points for maintaining the quality of the service area and collect basic information on expansion of the service area,
It enables quantitative judgment on the effects of quality improvement, and enables efficient service area development and quality maintenance management.

[Brief description of the drawings]

1 is a diagram cited for explaining the connection configuration of a mobile communication system for realizing the communication quality maintenance method of a service area in a mobile communication system in the present invention.

FIG. 2 is a block diagram showing an internal configuration of the mobile communication terminal device in FIG.

Is a diagram cited for explaining the data format of error information to be used in the invention, FIG.

FIG. 4 is a block diagram showing the internal configuration of the management server system in FIG.

FIG. 5 is a diagram cited for explaining the operation of the embodiment of the present invention, and is a diagram showing a processing procedure in a case where the mobile communication terminal device in FIG.

6 is a diagram cited for explaining the operation of the embodiment of the present invention, and is a diagram showing, in a flowchart, a processing procedure when the mobile communication terminal device in FIG. 1 has successfully made a call;

FIG. 7 is a diagram cited for describing the operation of the embodiment of the present invention, and is a diagram showing a sequence chart of a data exchange procedure between the mobile communication terminal device, the exchange, and the management server system.

FIG. 8 is a diagram cited for explaining the operation of the embodiment of the present invention, and is a diagram showing a processing procedure of the management server system in FIG. 1 in a flowchart.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 mobile communication terminal device (mobile device) 2 wireless communication network 3 management server system 4 exchange 11 CPU 12 memory 13 input / output control unit 14 GPS reception unit 15 transmission / reception control unit 16 timer LSI 17 ... Internal bus 31 ... Interface part 32 ... Error information receiving part 33 ... Channel demand number calculating part 34 ... Error information table 35 ... Network data table

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Claims (17)

[Claims]
1. A method for maintaining communication quality of a service area in a mobile communication system in which a mobile communication terminal device and a management server system are connected to a wireless communication network, wherein a communication error occurs in the mobile communication terminal device. Storing error information indicating a cause of the communication abnormality in a storage device, and transferring the stored error information to a management server system via the wireless communication network when transmission is successful. communication quality maintenance method of the service area of the system.
2. The error information includes at least time information, communication quality information when communication is abnormal, and GPS information.
Communication quality maintenance method of a service area in a mobile communication system according to claim 1, characterized in that it comprises a position information measured by the (Global Positioning System).
3. The method according to claim 2, wherein the storage of the error information includes the G
When the position information cannot be measured by the PS, the mobile communication terminal does not store the position information, or
3. The communication quality maintenance of a service area in the mobile communication system according to claim 1, wherein the position information is collected periodically, and the position information immediately before the position information cannot be measured is stored as the error information. Method.
4. The communication quality information at the time of communication abnormality includes information indicating whether communication abnormality occurrence timing is during transmission or during communication, electric field strength level information at the time of communication abnormality, and presence or absence of a control channel at the time of transmission. The communication quality maintaining method for a service area in a mobile communication system according to claim 2, wherein
5. A method for maintaining communication quality in a service area by a mobile communication system in which a mobile communication terminal device is connected to a management server system via a wireless communication network, wherein the communication quality is transmitted from the mobile communication terminal device when communication is normal. Error information indicating the position information and communication quality at the time of communication abnormality, perform statistical processing based on the error information, and calculate the appropriate number of channel demands from the usage rate of channels obtained from the wireless communication network. A method for maintaining communication quality in a service area in a mobile communication system.
6. The calculation of the appropriate number of channel demands is performed by totalizing error information received from the mobile communication terminal device for each existing service area based on information of time, position, and factor type as parameters thereof. Extracting, in the existing service area, the number of mobile communication terminal devices in which communication has failed due to lack of empty channels while radio waves have arrived, and the usage rate of channels obtained from the wireless communication network and the number of mobile communication terminal devices. The method according to claim 5, wherein the method is performed by calculating a required number of channels from the communication channel.
7. The method for calculating the appropriate number of channel demands includes the step of: calculating the number of demands outside the existing service area, assuming the number of error information generated outside the service area as the number of demands, and calculating the required number of channels from the number of demands. The method for maintaining communication quality of a service area in a mobile communication system according to claim 5, wherein the calculation is performed.
8. A mobile communication terminal device in a mobile communication system connected to a management server system via a wireless communication network, comprising: a GPS receiving unit that receives a GPS radio wave and takes in current position information; An error information storage unit for storing communication quality information indicating a cause of a communication error including the current position information; and communicating the communication quality information indicating a cause of the communication error stored in the error information storage unit when the communication is normal to the wireless communication. A mobile communication terminal device in a mobile communication system, comprising: an error information transfer unit that transfers the error information to the management server system via a network.
9. A management server system in a mobile communication system connected to a mobile communication terminal device and a wireless communication network, comprising: acquiring status information transmitted from the mobile communication terminal device when communication is normal, when communication is abnormal. Mobile communication, comprising: an error information receiving unit that performs statistical processing based on the status information; and a demand number calculation unit that calculates an appropriate traffic from a channel usage rate obtained from the wireless communication network. management server system in the system.
10. A terminal program used in a mobile communication terminal device in a mobile communication system connected to a management server system via a wireless communication network, wherein the terminal program has a communication error in the mobile communication terminal device. A first step of storing information indicating the status in the storage device when the communication is normal; and transferring the information indicating the status stored in the storage device to the management server system via the wireless communication network when communication is normal. A terminal program for causing a computer to execute step 2 and step 3.
11. The method according to claim 1, wherein the first step comprises: determining whether or not the outgoing call can be made at the time of outgoing call; monitoring a disconnection during communication when the outgoing call is possible; When it is determined that transmission is not possible or when disconnection due to an abnormality during the communication, an error situation including the current position is acquired, and for a certain period of time, the presence or absence of error information stored in the storage device in the same area is determined. And checking the empty area of the storage device when it is determined that there is no empty area, accumulating the error information, and overwriting the oldest error information when there is no empty area. A terminal program according to claim 10.
12. The second step is to check the presence or absence of error information by referring to the storage device when communication is normal, and to transfer the error information when the error information has been stored in the storage device. 11. The terminal program according to claim 10, further comprising: after transmitting the error information, clearing the error information.
13. A management server program used in a management server system in a mobile communication system connected to a mobile communication terminal device and a wireless communication network, wherein the management server program is transmitted from the terminal device when communication is normal. A first step of acquiring error information indicating a situation at the time of a communication error, performing a statistical process based on the error information, and calculating an appropriate number of channel demands from a channel usage rate obtained from the wireless communication network. A management server program for causing a computer to execute the steps of (2) and (3).
14. The second step is a step of totalizing error information received from the mobile communication terminal device for each existing service area based on each of parameters of time, position, and factor type, Extracting, in the existing service area, the number of mobile communication terminal devices in which communication has failed due to lack of empty channels even though radio waves have arrived; and the channel usage rate and the number of mobile communication terminal devices obtained from the wireless communication network. Calculating the required number of channels from
The management server program according to 1.
15. The method of claim 2, wherein in calculating the demand outside the existing service area, calculating the number of pieces of error information occurring outside the service area, and using the calculated number of errors as the number of demands. 14. The computer-readable storage medium according to claim 13, further comprising: calculating a required number of channels from the demand number.
16. A computer-readable recording medium which records a terminal program used for a mobile communication terminal device in a mobile communication system connected to a management server system via a wireless communication network, wherein the terminal program comprises: A first step of, when a communication error occurs in the mobile communication terminal device, storing information indicating the situation in a storage device, and transmitting the information indicating the status stored in the storage device during normal communication to the wireless communication network; And a second step of transferring to a management server system via a computer-readable recording medium.
17. A computer-readable recording medium recording a management server program used for a management server system in a mobile communication system connected to a mobile communication terminal device and a wireless communication network, wherein the management server program comprises: wherein sent to the normal communication from the terminal device, a first step of obtaining error information indicating the situation in the communication abnormality, performs statistical processing by the error information, the use of the channel obtained from the wireless communication network And a second step of calculating an appropriate channel demand number.
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