JP2008288777A - Server, mobile terminal, communication system, electric field environment notifying method, and electric field environment displaying method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication system for notifying an area with a proper electric field in HSDPA (High-Speed Downlink Packet Access) communications. <P>SOLUTION: A location information detection portion acquires location information indicative of the current position of a cellular phone 1. A CPU notifies the location information. When a communication portion 202 receives the location information, a management portion 204 generates quality information, where the communication quality by HSDPA communications is associated with each location information indicative of a position within a range including the current position at least, based on the location information and a database in a storage portion 201, and notifies the quality information to the cellular phone 1. When an RF portion receives the quality information, an LCD displays the quality information. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a server, a portable terminal, a communication system, an electric field environment notification method, and an electric field environment display method capable of notifying an electric field environment of a portable terminal.

  In the conventional portable terminal, the electric field environment at the current position is displayed, but an area where the electric field environment is good cannot be known.

  Patent Document 1 (Japanese Patent Laid-Open No. 2005-223633) describes a radio wave environment information service system capable of knowing an area with a good electric field environment.

  In this radio wave environment information service system, the mobile terminal notifies the server of reception quality and position information. The server uses the position information to associate the reception quality with the map information held in advance. The portable terminal accesses the server and displays an area with good reception quality.

Thereby, since reception quality depends on the electric field environment, it is possible to know an area where the electric field environment is good.
JP 2005-223633 A

  In recent years, HSDPA (High-Speed Downlink Packet Access) that realizes high-speed data communication has been proposed.

  The communication speed by this HSDPA communication varies significantly depending on the surrounding electric field environment. For this reason, HSDPA communication cannot be used effectively in an unstable electric field environment where the electric field environment changes rapidly with time.

  Patent Document 1 does not describe a method of knowing an area with a good electric field environment in HSDPA communication.

  An object of the present invention is to provide a server, a portable terminal, a communication system, an electric field environment notification method, and an electric field environment display method capable of knowing an area having a good electric field environment in HSDPA communication.

  In order to achieve the above object, a server according to the present invention is a server that can be connected to a mobile terminal that performs HSDPA communication, and associates the past reception quality of the mobile terminal by the HSDPA communication with each location information. A storage unit that stores a database, position information indicating a current position from the portable terminal, and communication quality by the HSDPA communication corresponds to each position information indicating a position within a range including at least the position indicated by the position information. Generating the quality information using a communication unit that receives the acquisition instruction to acquire the attached quality information, the positional information received by the communication unit, and a database in the storage unit, A management unit for notifying the portable terminal of quality information.

  In addition, the electric field environment notification method according to the present invention includes an electric field environment notification performed by a server that can be connected to the portable terminal, including a storage unit that stores a database in which past reception quality of the portable terminal by HSDPA communication is associated with each position information. In the method, position information indicating a current position and communication quality by the HSDPA communication are associated with each position information indicating a position within a range including the position indicated by the position information from the portable terminal. A reception step of receiving an acquisition instruction to acquire quality information, a generation step of generating the quality information using the received position information, and a database in the storage unit; A notification step of notifying the portable terminal of the quality information.

  The portable terminal according to the present invention is a portable terminal that can be connected to a server, and is an acquisition unit that acquires position information indicating the current position of the own terminal, the position information acquired by the acquisition unit, and HSDPA communication. A control unit for notifying the server of an acquisition instruction indicating that communication quality is acquired for each piece of position information indicating a position within a range including at least a position indicated by the position information; and the server To a reception unit that receives the quality information, and a display unit that displays the quality information received by the reception unit.

  The electric field environment display method according to the present invention is an electric field environment display method performed by a portable terminal connectable to a server, an acquisition step of acquiring position information indicating a current position, the acquired position information, A notification step of notifying the server of an acquisition instruction for acquiring quality information associated with each position information indicating a position within a range including at least the position indicated by the position information, the communication quality by the HSDPA communication. And a reception step of receiving the quality information from the server, and a display step of displaying the received quality information.

  The communication system according to the present invention is a communication system including a mobile terminal that performs HSDPA communication, and a server that can be connected to the mobile terminal, wherein the mobile terminal is position information indicating a current position of the mobile terminal. Quality information associated with each position information indicating a position within a range including at least the position indicated by the position information, and the communication information quality obtained by the HSDPA communication. A control unit for notifying the server of an acquisition instruction to acquire, a receiving unit for receiving the quality information from the server, and a display unit for displaying the quality information received by the receiving unit. The server stores a database in which past received qualities of the portable terminal by the HSDPA communication are associated with each position information; and the acquisition from the portable terminal Display and the communication unit that receives the position information, the position information received by the communication unit, and a database in the storage unit, generate the quality information and notify the quality information to the mobile terminal And a management unit.

  In addition, the electric field environment display method performed by the communication system according to the present invention includes a storage unit that stores a mobile terminal that performs HSDPA communication and a database in which past reception quality of the mobile terminal by the HSDPA communication is associated with each position information. Including a server connectable to the mobile terminal, and an electric field environment display method performed by a communication system, wherein the mobile terminal acquires position information indicating a current position of the mobile terminal, and the mobile terminal Is an acquisition instruction indicating that the acquired position information and quality information associated with each position information indicating a position within a range in which the communication quality by the HSDPA communication includes a position indicated by the position information is included And a notification step of notifying, a reception step of receiving the position information from the mobile terminal, and the server Using the received location information and the database in the storage unit, generating step for generating the quality information, the notification step for notifying the mobile terminal of the generated quality information, the server, The portable terminal includes a reception step of receiving the quality information from the server, and a display step of the portable terminal displaying the received quality information.

  According to the present invention, it is possible to know an area where the electric field environment is good in HSDPA communication.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram showing a communication system according to an embodiment of the present invention.

  In FIG. 1, the communication system includes a mobile phone 1 and a server 2. The mobile phone 1 and the server 2 can be connected to each other via the base station 3. There may be a plurality of base stations 3. When there are a plurality of base stations 3, the mobile phone 1 and the server 2 are connected to each other via any one of the plurality of base stations 3.

  The mobile phone 1 is an example of a mobile terminal, and performs HSDPA communication via the base station 3. The mobile terminal is not limited to the mobile phone and can be changed as appropriate. Further, there may be a plurality of mobile phones 1.

  First, the configuration of the mobile phone 1 will be described.

  FIG. 2 is a block diagram illustrating a configuration example of the mobile phone 1. In FIG. 2, the mobile phone 1 includes a position information detection unit 101, a horizontal information detection unit 102, an orientation information detection unit 103, an RF unit 104, a BaseBand unit 105, a storage unit 106, a CPU 107, and an LCD 108. including.

  The position information detection unit 101 has a GPS function. The position information detection unit 101 periodically detects the current position of the mobile phone 1 using the GPS function, and acquires position information indicating the position. The position information detection unit 101 provides the position information to the CPU 107. The position information indicates latitude, longitude, and altitude.

  The horizontal information detection unit 102 is, for example, an inclination sensor. The horizontal information detection unit 102 periodically detects the tilt of the mobile phone 1 and acquires tilt information indicating the tilt. The horizontal information detection unit 102 provides the tilt information to the CPU 107.

  The inclination of the mobile phone 1 is, for example, two inclinations for each of two different directions that define a horizontal plane (a plane perpendicular to the vertical direction).

  The orientation information detection unit 103 is a geomagnetic sensor, for example. The azimuth information detection unit 103 periodically detects the azimuth of the mobile phone 1 and acquires azimuth information indicating the azimuth. The direction information detection unit 103 provides the direction information to the CPU 107.

  The orientation of the mobile phone 1 is, for example, the orientation in which the surface of the mobile phone 1 having the LCD 108 is facing.

  The RF unit 104 is an example of a receiving unit, and is an interface for wireless communication.

  For example, the RF unit 104 receives, from the server 2, quality information for position information indicating the current position of the mobile phone 1, a position acquisition instruction for acquiring the position information, and a quality acquisition instruction for acquiring the reception quality. , Receive. In the quality information, the communication quality by HSDPA communication is associated with each position in the target range including at least the current position.

  The communication quality is, for example, a downlink communication speed. The downlink communication speed depends on the radio wave environment. Hereinafter, the communication quality is defined as a downlink communication speed.

  The BaseBand unit 105 is an example of a communication control unit, and controls wireless communication. Further, the BaseBand unit 105 detects reception quality by HSDPA communication and provides the reception quality to the CPU 107. The reception quality is, for example, CQI (Channel Quality Indicator) in HS-DPCCH (High Speed-Dicated Physical Control Channel).

  The storage unit 106 is, for example, a memory, and stores various information related to the mobile phone 1. For example, the storage unit 106 stores format information indicating a display format of quality information and an identifier for specifying the mobile phone 1. The format information includes defining information that defines the size of the display range of the position information in the quality information. The regulation information indicates, for example, the length of one side of the square when the target range is a square, and indicates the radius of the circle when the target range is a circle.

  The CPU 107 is an example of a control unit, and controls each unit of the mobile phone 1. Specifically, the CPU 107 performs the following processing.

  At the start of HSDPA communication, the CPU 107 periodically sends an acquisition instruction for acquiring quality information, the position information acquired by the position information detection unit 101, the identifier and the regulation information in the storage unit 106 to the server 2. Notice.

  In addition, the CPU 107 periodically sends to the server 2 a registration instruction for registering the reception quality, the location information acquired by the location information detection unit 101, and the reception quality detected by the BaseBand unit 105 during HSDPA communication. Notice.

  Further, when the RF unit 104 receives the position acquisition instruction, the CPU 107 notifies the server 2 of the position information acquired by the position information detection unit 101 at that time, and the identifier and the regulation information in the storage unit 106.

  Further, when the RF unit 104 receives the quality acquisition instruction, the CPU 107 notifies the server 2 of the reception quality detected by the BaseBand unit 105 at that time and the identifier in the storage unit 106.

  Further, when the RF unit 104 receives the quality information, the CPU 107 converts the quality information into a display format indicated by the format information in the storage unit 106. At this time, the CPU 107 uses at least one of the position information acquired by the position information detection unit 101, the inclination information acquired by the horizontal information detection unit 102, and the direction information acquired by the direction information detection unit 103, Quality information may be converted.

The LCD 108 is an example of a display unit, and displays the quality information converted by the CPU 107.
The display unit is not limited to the LCD and can be changed as appropriate.

  FIG. 3 is an explanatory diagram showing an example of quality information displayed on the LCD 108.

  In FIG. 3, quality information 301, a current position 302, and a display description 303 are displayed on the LCD 108.

  Each piece of position information of the quality information 301 is represented by a square block.

  In FIG. 3, the length of one side of the block represents an actual distance of 100 m. However, the actual distance represented by the length of one side of the block is not limited to 100 m and can be changed as appropriate. For example, the actual distance represented by the length of one side of the block may be 10 m or 1000 m.

  In addition, the number of blocks is displayed as 25, 5 × 5 in length and breadth, but the number of blocks is not limited to 25 and can be changed as appropriate. For example, the number of blocks may be nine (3 × 3 in length and width) or 10,000 (100 × 100).

  The communication quality of the quality information 301 is represented by the color of the block. The color of the block varies depending on the communication quality.

  For example, when the communication quality is required to be 1 Mbps or more, the communication quality is within the range of the communication quality “less than 500 Kbps”, “500 Kbps or more and less than 1 Mbps”, “1 Mbps or more and less than 2 Mbps”, and “2 Mbps or more”. Each is represented by a different color.

  Further, when the communication quality is not particularly limited, the communication quality varies depending on each of the communication quality ranges “less than 300 Kbps”, “300 Kbps or more and less than 600 Kbps”, “600 Kbps or more and less than 1 Mbps”, and “1 Mbps or more”. Expressed in color.

  A current position 302 indicates the current position of the mobile phone 1.

  A display description 303 explains how to view the quality information 301. Specifically, the display description 303 shows the color of the area with the best communication quality, the color of the area with the worst communication quality, and the actual distance represented by the length of one side of the block. The display description 303 may indicate the color classification according to the communication quality in more detail.

  In this case, the CPU 107 obtains the current position 302 from the latitude and longitude of the position information acquired by the position information detection unit 101.

  Next, the configuration of the server 2 will be described.

  FIG. 4 is a block diagram illustrating a configuration example of the server 2. In FIG. 4, the server 2 includes a storage unit 201, a communication unit 202, a measurement unit 203, and a management unit 204.

  The storage unit 201 stores a database in which past reception quality and geographic information are associated with each position information. The geographic information includes base station information indicating the base station 3 and obstacle information regarding communication obstacles. The obstacle is, for example, a building, a mountain, a valley, or the like, and the obstacle information indicates the size and shape of the obstacle. The geographic information is stored in advance by the administrator of the server 2 according to the actual geography.

  The communication unit 202 receives an acquisition instruction, a registration instruction, position information, reception quality, an identifier, and regulation information from the mobile phone 1.

  The measuring unit 203 measures the communication traffic of the base station 3 for each base station 3. Specifically, the communication traffic is the number of mobile phones 1 connected to the base station 3 by HSDPA communication.

  Whenever the communication unit 202 receives a registration instruction, reception quality, and position information, the management unit 204 stores the reception quality in the storage unit 201 in association with the position information. At this time, the management unit 204 stores the received quality as the past received quality in the database.

  In addition, when the communication unit 202 receives the acquisition instruction, the position information, the identifier, and the regulation information, the management unit 204 has position information indicating a position within a target range including at least the position indicated by the received position information. Quality information associated with each is generated. At this time, the management unit 204 generates the quality information using the position information, the regulation information, the database in the storage unit 201, and the communication traffic measured by the measurement unit 203.

  An example of a method for generating quality information will be described.

  First, the management unit 204 specifies a target range based on the position information and the regulation information received by the communication unit 202. For example, the management unit 204 specifies a square having the position indicated by the received position information as the center of gravity and the length indicated by the received specified information as one side as the target range.

  In this case, the size of the target range is the same as the size of the display range defined by the regulation information. Therefore, the CPU 107 of the mobile phone 1 does not need to convert the display range when converting the quality information.

  Subsequently, the management unit 204 represents the identified target range on a map. Based on the received position information and the geographic information in the database in the storage unit 201, the management unit 204 maps the positions of the mobile phone 1, the base station 3, and the obstacle on the map.

  FIG. 5a is an explanatory diagram showing a map in which the positions of the mobile phone 1, the base station 3, and the obstacle are mapped.

  In FIG. 5a, a map 501 is shown. In the map 501, each position in the target range is represented by a square block. In the map 501, A represents the position of the mobile phone 1, B represents the position of the obstacle, and C represents the position of the base station.

  It is assumed that the target range is included in the communication range of the base station at position C. The communication traffic of the base station is assumed to be 10.

  Subsequently, for each position within the target range, the management unit 204 predicts the current communication quality according to the past reception quality associated with the position information indicating the position. For example, the management unit 204 predicts the current communication quality so that the higher the reception quality, the higher the communication quality. The management unit 204 represents the communication quality for each position on a map.

  FIG. 5b is an explanatory diagram showing a map representing the communication quality. In FIG. 5b, the same components as those in FIG. In FIG. 5b, the communication quality is described in a block indicating a position.

  Furthermore, the management unit 204 corrects the communication quality represented on the map based on the geographical information associated with the position information indicating the position within the target range. For example, the management unit 204 predicts a position where the communication quality is lowered by the obstacle from the position C of the base station, the position B of the obstacle, and the size and shape of the obstacle. The management unit 204 lowers the communication quality at the predicted position.

  FIG. 5c is an explanatory diagram showing a map in which the communication quality is corrected according to the obstacle. In FIG. 5c, the same components as those in FIG. In FIG. 5c, the corrected communication quality is underlined.

  Furthermore, the management unit 204 acquires the communication traffic of the base station indicated by the base station information associated with the position information indicating the position within the target range from the measurement unit 203, and displays it on the map according to the communication traffic. Correct the indicated communication quality.

  For example, when the communication traffic is larger than a predetermined value, the management unit 204 decreases the communication quality as the communication traffic is larger. When the communication traffic is smaller than the predetermined value, the management unit 204 increases the communication quality as the communication traffic is smaller.

  FIG. 5d is an explanatory diagram showing a map in which the communication quality is further corrected according to the communication traffic. In FIG. 5d, the same components as those in FIG. In FIG. 5d, the corrected communication quality is underlined. It is assumed that the communication traffic “10” of the base station at the position C is larger than a predetermined value.

  The management unit 204 generates quality information by associating the communication quality modified according to the communication traffic with each piece of position information indicating the position of the communication quality.

  The method for generating quality information is not limited to the above example, and can be changed as appropriate. For example, you may consider the influence of each communication quality of the position in a target range by the obstruction outside a target range.

  Returning to FIG. The management unit 204 notifies the quality information to the mobile phone 1 specified by the identifier.

  In addition, when notifying the quality information, the management unit 204 performs an update process for updating the quality information.

  Hereinafter, the update process will be described.

  In the first update process, first, the management unit 204 periodically acquires the reception quality in the mobile phone 1 from the mobile phone 1 specified by the identifier. Specifically, the management unit 204 transmits a quality acquisition instruction to the mobile phone 1 and then acquires the reception quality when the communication unit 202 receives the reception quality.

  Subsequently, the management unit 204 acquires position information indicating the current position of the mobile phone 1 and regulation information from the mobile phone 1 in the notification cycle, and generates quality information using the position information. . Specifically, the management unit 204 transmits a position information acquisition instruction to the mobile phone 1, and then acquires the position information and the regulation information when the communication unit 202 receives the position information and the regulation information.

  The management unit 204 may update the notification cycle every certain period, update every time the reception quality changes, or update every time the quality information is notified.

  In the second update process, first, the management unit 204 periodically acquires position information indicating the current position of the mobile phone 1 from the mobile phone 1 specified by the identifier.

  Subsequently, when acquiring a plurality of pieces of position information, the management unit 204 obtains a moving speed of the mobile phone 1 based on the plurality of pieces of position information, and obtains a notification cycle corresponding to the moving speed. For example, the management unit 204 obtains a shorter notification cycle as the moving speed increases. This is because the higher the moving speed, the greater the change in communication quality.

  Furthermore, the management unit 204 generates quality information using the acquired position information in the notification cycle, and notifies the mobile phone 1 of the quality information.

  The management unit 204 may update the notification cycle every certain period, update every time the moving speed changes, update every time the quality information is notified, and the like.

  In the third update process, first, the management unit 204 periodically acquires position information indicating the current position of the mobile phone 1 from the mobile phone 1 specified by the identifier.

  Subsequently, the management unit 204 obtains a notification cycle based on the position information and the obstacle information in the database in the storage unit 201. For example, the management unit 204 obtains an obstacle distance from the position indicated by the position information to an obstacle closest to the position and larger than a predetermined value, and obtains a notification cycle according to the obstacle distance. . Furthermore, the management unit 204 obtains a shorter notification cycle as the obstacle distance is shorter. This is because the shorter the obstacle distance, the greater the change in communication quality.

  Subsequently, the management unit 204 generates quality information using the acquired position information in the notification cycle, and notifies the mobile phone 1 of the quality information.

  The management unit 204 may update the notification cycle every certain period, update every time the obstacle distance changes, or update every time the quality information is notified.

  Next, the operation will be described.

  First, an operation for storing position information and reception quality will be described.

  The CPU 107 receives position information from the position information detection unit 101 and receives reception quality from the BaseBand unit 105.

  The CPU 107 periodically generates a registration instruction, and notifies the communication instruction 202 of the server 2 of the registration instruction, position information, and reception quality via the BaseBand unit 105, the RF unit 104, and the base station 3.

  When communication unit 202 receives the registration instruction, position information, and reception quality, communication unit 202 notifies management unit 204 of the registration instruction, position information, and reception quality.

  Upon receiving the registration instruction, position information, and reception quality, management unit 204 stores the position information and reception quality in storage unit 201.

  Next, an operation for displaying quality information at the start of HSDPA communication will be described.

  FIG. 6 is a flowchart for explaining this operation example.

  In step S <b> 601, when the CPU 107 receives position information from the position information detection unit 101, the CPU 107 acquires an identifier and regulation information from the storage unit 106 and generates an acquisition instruction. The CPU 107 notifies the communication unit 202 of the server 2 of the acquisition instruction, the position information, the identifier, and the regulation information via the BaseBand unit 105, the RF unit 104, and the base station 3. When communication unit 202 receives the acquisition instruction, position information, identifier, and regulation information, communication unit 202 executes step S602.

  In step S602, the communication unit 202 notifies the management unit 204 of the acquisition instruction, position information, identifier, and regulation information.

  Upon receiving the acquisition instruction, location information, identifier, and specification information, the management unit 204 receives the location information, the specification information, the database in the storage unit 201, and the communication traffic for each base station measured by the measurement unit 203. Is used to generate quality information in which the communication quality is associated with each position in the target range including at least the position indicated by the position information. When the quality information is generated, the management unit 204 executes Step S603.

  In step S603, the management unit 204 notifies the quality information to the RF unit 104 of the mobile phone 1 specified by the identifier via the communication unit 202 and the base station 3. When the management unit 204 notifies the quality information, the management unit 204 stores the identifier in the storage unit 201.

  At this time, the management unit 204 may store the definition information in association with the identifier.

  Further, upon receiving the quality information, the RF unit 104 notifies the CPU 107 of the quality information via the BaseBand unit 105. When CPU 107 receives the quality information, CPU 107 executes step S604.

  In step S604, the CPU 107 confirms the format information in the storage unit 106, and converts the quality information into a display format indicated by the format information. After converting the quality information, the CPU 107 executes step S605.

  In step S605, the CPU 107 displays the converted quality information on the LCD 108 and ends the operation.

  Next, the operation of the communication system in the update process will be described.

  In the first update process, the management unit 204 periodically acquires the reception quality acquired by the BaseBand unit 105 of the mobile phone 1 from the mobile phone 1 specified by the identifier in the storage unit 201.

  Subsequently, the management unit 204 obtains a notification cycle according to the reception quality. The management unit 204 acquires the location information and the regulation information of the mobile phone 1 from the mobile phone 1 in the notification cycle.

  Further, the management unit 204 generates the quality information using the position information and the regulation information, the database in the storage unit 201, and the communication traffic measured by the measurement unit 203. The management unit 204 notifies the quality information to the RF unit 104 of the mobile phone 1 via the communication unit 202 and the base station 3. When receiving the quality information, the RF unit 104 notifies the CPU 107 of the quality information via the BaseBand unit 105. When CPU 107 receives the quality information, CPU 107 executes step S604. Thereafter, S605 is executed.

  In the second update process, the management unit 204 periodically acquires location information and regulation information indicating the current location of the mobile phone 1 from the mobile phone 1 specified by the identifier in the storage unit 201. .

  Subsequently, the management unit 204 obtains the moving speed of the mobile phone 1 based on a plurality of pieces of position information. For example, the management unit 204 obtains the distance between the positions indicated by the two pieces of position information, and divides the distance by the time difference at which the pieces of position information are acquired to obtain the moving speed.

  Thereafter, the management unit 204 obtains a notification cycle according to the moving speed. Whenever the time length of the notification cycle elapses, the management unit 204 uses the position information and regulation information acquired at that time, the database in the storage unit 201, and the communication traffic measured by the measurement unit 203, The quality information is generated. The management unit 204 notifies the quality information to the RF unit 104 of the mobile phone 1 via the communication unit 202 and the base station 3. When receiving the quality information, the RF unit 104 notifies the CPU 107 of the quality information via the BaseBand unit 105. When CPU 107 receives the quality information, CPU 107 executes step S604. Thereafter, S605 is executed.

  Next, the operation of the communication system in the third update process will be described.

  In the third update process, the management unit 204 periodically acquires location information and regulation information indicating the current location of the mobile phone 1 from the mobile phone 1 specified by the identifier in the storage unit 201. The management unit 204 obtains a notification cycle based on the position information and the obstacle information in the database in the storage unit 201.

  After that, when the management unit 204 obtains the notification cycle, the management unit 204 obtains the position information and the regulation information acquired at that time, the database in the storage unit 201 each time the time length of the notification cycle elapses, Using the communication traffic measured by the measurement unit 203, the quality information is generated. The management unit 204 notifies the quality information to the RF unit 104 of the mobile phone 1 via the communication unit 202 and the base station 3. When receiving the quality information, the RF unit 104 notifies the CPU 107 of the quality information via the BaseBand unit 105. When CPU 107 receives the quality information, CPU 107 executes step S604. Thereafter, S605 is executed.

  If the regulation information is stored in association with the identification information in step S603, in each update process, the management unit 204 obtains the regulation information from the storage unit 201 instead of obtaining it from the mobile phone.

  Next, another example of the quality information display format will be described.

  FIG. 7 is an explanatory diagram showing another example of the displayed quality information.

  In FIG. 7, a normal screen 701 and quality information 702 are displayed on the LCD 108. A normal screen 701 is an area for displaying data different from the quality information 702. For example, the normal screen 701 displays data received through HSDPA communication.

  The quality information 702 is an arrow indicating a position with the best communication quality.

  When the quality information is displayed in the display format as shown in FIG. 7, the CPU 107 acquires the position information acquired by the position information detection unit 101, the inclination information acquired by the horizontal information detection unit 102, and the orientation information detection unit 103. The direction of the arrow indicating the position with the best communication quality is determined using the azimuth information. In this case, after displaying the quality information 702 on the LCD 108, if at least one of the position information, the tilt information, and the orientation information changes, the CPU 107 preferably changes the direction of the arrow according to the change. .

  FIG. 8 is an explanatory diagram showing another example of the displayed quality information.

  In FIG. 8, quality information 801 and display explanation 802 are displayed on the LCD 108.

The position information of the quality information 801 is represented as a cubic block. In addition, the communication quality of the quality information 801 is different depending on the communication quality, and is represented by the color of the block. The display description 802 explains how to view the quality information 801. Specifically, the display description indicates the color of the area with the best communication quality, the color of the area with the worst communication quality, and the actual distance represented by the length of one side of the block. The display description 802 may indicate the color classification according to communication quality in more detail.

  When the quality information is represented in the display format as shown in FIG. 8, the CPU 107 converts the quality information display format using the current position detected by the position information detection unit 101.

  In this case, the CPU 107 obtains the current position 302 from the latitude, longitude, and altitude of the position information acquired by the position information detection unit 101.

  Next, the effect will be described.

  According to the present embodiment, the position information detection unit 101 acquires position information indicating the current position of the mobile phone 1. The CPU 107 notifies the position information. When the communication unit 202 receives the position information, the management unit 204 determines that the communication quality by HSDPA communication is at least within the range including the current position based on the position information and the database in the storage unit 201. Is generated for each piece of positional information indicating the quality information, and the mobile phone 1 is notified of the quality information. When the RF unit 104 receives the quality information, the LCD 108 displays the quality information.

  In this case, the mobile phone 1 is notified of the quality information in which the communication quality by the HSDPA communication is associated with each position information indicating a position within the range including the current position of the mobile phone 1. The communication quality by HSDPA communication depends on the electric field environment. Therefore, in HSDPA communication, it becomes possible to know an area where the electric field environment is good.

  In the present embodiment, the measurement unit 203 measures the communication traffic of the base station. The management unit 204 further generates quality information using the communication traffic.

  In this case, since the communication traffic affects the communication quality (electric field environment), the communication quality can be obtained more accurately.

  In the present embodiment, the obstacle information is associated with each position information in the database. In this case, since the obstacle affects the communication quality (electric field environment), the communication quality can be obtained more accurately.

  In the present embodiment, the management unit 204 periodically acquires the reception quality of the mobile phone 1 from the mobile phone 1 specified by the identifier, and obtains the notification cycle according to the reception quality. . The management unit 204 generates quality information at the notification cycle.

  In this case, the quality information is generated at a notification cycle corresponding to the reception quality. For this reason, for example, it becomes possible to notify quality information more frequently as reception quality is lower.

  In the present embodiment, the management unit 204 periodically acquires position information indicating the current position of the mobile phone 1 from the mobile phone 1 specified by the identifier. The management unit 204 obtains the moving speed of the mobile phone 1 based on the acquired position information, and obtains a notification cycle corresponding to the moving speed. The management unit 204 generates the quality information at the notification cycle.

  In this case, the quality information is generated at a notification cycle corresponding to the moving speed of the mobile terminal. For this reason, for example, quality information can be frequently notified, so that the moving speed of the mobile telephone 1 is high. Therefore, the higher the moving speed of the mobile phone 1, the more frequently the communication quality changes. Therefore, it becomes possible to notify the quality information at a frequency corresponding to the speed of change of the communication quality.

  In the present embodiment, the management unit 204 periodically acquires position information indicating the current position of the mobile phone 1 from the mobile phone 1 specified by the identifier. The management unit 204 obtains a notification cycle based on the position information and the obstacle information in the database in the storage unit 201. The management unit 204 generates quality information at the notification cycle.

  In this case, the quality information is notified at a notification cycle based on the position information and the obstacle information. Therefore, for example, the closer the distance between the mobile phone 1 and the obstacle is, the more frequently the quality information can be notified. Accordingly, the closer the distance between the mobile phone 1 and the obstacle, the more frequently the communication quality changes, so it is possible to notify the quality information at a frequency corresponding to the speed of change of the communication quality.

  In the present embodiment, the management unit 204 stores the reception quality received by the communication unit 202 in the storage unit 201 in association with the position information received by the communication unit 202.

  In this case, it becomes possible to automatically store the past reception quality.

  In this embodiment, when the RF unit 104 receives quality information, the CPU 107 converts the quality information into a display format indicated by the format information in the storage unit 106. The LCD 108 displays the converted quality information.

  In this case, if the format information is appropriately set, the quality information can be displayed in a display format desired by the user.

  Next, a second embodiment will be described.

  In the first embodiment, the CPU 107 of the mobile phone 1 notifies the server 2 of the regulation information. However, in this embodiment, the CPU 107 does not notify the regulation information.

  In this case, the storage unit 201 of the server 2 stores target defining information that defines the size of the target range. When specifying the target range, the management unit 204 specifies the target range based on the target defining information in the storage unit 201 and the position information received by the communication unit 202.

  Further, when converting the quality information, the CPU 107 limits the target range to the display range based on the regulation information included in the format information in the storage unit 106.

  Further, in the first embodiment, the server 2 performs the update process independently, but in the present embodiment, the mobile phone 1 performs the update process independently.

  When the converted quality information is displayed on the LCD 108 in step S605, the CPU 107 performs the following update process.

  In the fourth update process, first, the CPU 107 periodically determines whether or not the reception quality detected by the BaseBand unit 105 is larger than a predetermined reference quality. When the reception quality is lower than the predetermined reference quality, CPU 107 notifies server 2 of the acquisition instruction, the position information acquired by position information detection unit 101 at that time, and the identifier in storage unit 106.

  In the fifth update process, the CPU 107 periodically receives position information from the position information detection unit 101, and obtains the moving speed of the mobile phone 1 from the position information. CPU 107 determines whether or not the moving speed is higher than a predetermined reference speed. If the moving speed is higher than the reference speed, the CPU 107 notifies the server 2 of an acquisition instruction, the position information acquired by the position information detection unit 101 at that time, and the identifier in the storage unit 106.

  In the sixth update process, the CPU 107 periodically accesses the storage unit 201 of the server 2 and refers to the database in the storage unit 201. The CPU 107 obtains the distance from the position indicated by the position information to the obstacle closest to the position based on the position information acquired by the position information detection unit 101 and the database. The CPU 107 determines whether or not the distance is larger than a predetermined reference distance. When the distance is smaller than the reference distance, the CPU 107 notifies the server 2 of the acquisition instruction, the position information acquired by the position information detection unit 101 at that time, and the identifier in the storage unit 106.

  In this case, for this reason, it is possible to display quality information when the mobile terminal is close to an obstacle. Therefore, quality information can be displayed when communication quality changes frequently.

  In the seventh update process, the storage unit 106 stores the display update cycle. The CPU 107 notifies the server 2 of the acquisition instruction, the position information acquired by the position information detection unit 101 at that time, and the identifier in the storage unit 106 at the display update cycle.

  It should be noted that at least one of the first to seventh update processes may be performed.

  Next, the effect will be described.

  According to this embodiment, the CPU 107 notifies the server 2 of an acquisition instruction and position information at a display update period in the storage unit 106.

  In this case, the quality information can be displayed without the user performing a special operation.

  In this embodiment, the CPU 107 periodically determines whether or not the reception quality detected by the BaseBand unit 105 is equal to or higher than the reference quality. If the reception quality is less than the reference quality, the acquisition instruction and the position information Is notified to the server 2.

  In this case, the acquisition instruction and the position information are notified that the reception quality is lower than the reference quality. Quality information can be displayed when reception quality is poor.

  In this embodiment, the CPU 107 periodically obtains the moving speed of the mobile phone 1 from the position information acquired by the position information detecting unit 101, and determines whether or not the moving speed is equal to or higher than the reference speed. When the moving speed is equal to or higher than the reference speed, the CPU 107 notifies the server 2 of an acquisition instruction and position information.

  In this case, the acquisition instruction and the position information are notified that the moving speed of the mobile phone 1 is equal to or higher than the reference speed. Therefore, quality information can be displayed when the position of the mobile phone 1 changes frequently. Therefore, quality information can be displayed when communication quality changes frequently.

  In the embodiment described above, the illustrated configuration is merely an example, and the present invention is not limited to the configuration.

  For example, the position information detection unit 101 may have an RTK-GPS (Real Time Kinematic GPS) function.

  The database in the storage unit 201 may be stored in a storage device having a communication unit 202, a measurement unit 203, a management unit 204, and an independent housing.

It is the block diagram which showed the communication system of one Example of this invention. It is the block diagram which showed the structural example of the mobile telephone. It is explanatory drawing which showed an example of the quality information displayed on LCD. It is the block diagram which showed the structural example of the server. It is explanatory drawing which shows the map with which the base station and the obstacle were mapped. It is explanatory drawing which showed the map showing communication quality. It is explanatory drawing which showed the map which corrected communication quality according to the obstruction. It is explanatory drawing which showed the map which corrected communication quality according to communication traffic It is a flowchart for demonstrating the operation example of a communication system. It is explanatory drawing which showed the other example of the quality information displayed on LCD. It is explanatory drawing which showed the other example of the quality information displayed on LCD.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mobile phone 2 Server 3 Base station 101 Position information detection part 102 Horizontal information detection part 103 Direction information detection part 104 RF part 105 BaseBand part 106 Storage part 107 CPU
108 LCD
201 Storage Unit 202 Communication Unit 203 Measuring Unit 204 Management Unit

Claims (16)

A server that can be connected to a portable terminal that performs HSDPA communication,
A storage unit that stores a database in which past reception quality of the mobile terminal by the HSDPA communication is associated with each position information;
From the portable terminal, the position information indicating the current position and the quality information in which the communication quality by the HSDPA communication is associated with each position information indicating a position within a range including at least the position indicated by the position information are acquired. A communication unit that receives an acquisition instruction to the effect,
A server including: a management unit that generates the quality information using position information received by the communication unit and a database in the storage unit and notifies the mobile terminal of the quality information. The server according to claim 1,
The mobile terminal performs the HSDPA communication via a base station,
The server includes a measurement unit that measures communication traffic of the base station,
The said management part is a server which produces | generates the said quality information further using the communication traffic which the said measurement part measured. In the server according to claim 1 or 2,
In the database, obstacle information related to communication obstacles is further associated with each piece of position information. The server according to any one of claims 1 to 3,
The management unit periodically acquires the reception quality of the mobile terminal by the HSDPA communication from the mobile terminal, obtains a notification cycle according to the reception quality, and generates the quality information at the notification cycle. server. The server according to any one of claims 1 to 3,
The management unit periodically acquires the position information from the portable terminal, obtains a moving speed of the portable terminal based on the position information, obtains a notification cycle according to the moving speed, and A server that generates the quality information. The server according to claim 3,
The management unit periodically acquires the location information from the mobile terminal, obtains a notification cycle based on the location information and obstacle information in the database in the storage unit, and determines the quality in the notification cycle. A server that generates information. The server according to any one of claims 1 to 6,
The communication unit receives the reception quality and the location information from the mobile terminal,
The server, wherein the management unit associates the reception quality received by the communication unit with the position information received by the communication unit, and stores the received quality as the past reception quality in the storage unit. A mobile terminal that can be connected to a server,
An acquisition unit that acquires position information indicating the current position of the terminal;
The position information acquired by the acquisition unit, and an acquisition instruction that the communication quality by HSDPA communication acquires quality information associated with each position information indicating a position within a range including at least the position indicated by the position information; , A control unit for notifying the server,
A receiving unit for receiving the quality information from the server;
And a display unit for displaying quality information received by the receiving unit. The mobile terminal according to claim 8,
Including a storage unit for storing a display cycle;
The said control part is a portable terminal which notifies the said acquisition instruction | indication and the said positional information to the said server by the said display period. The mobile terminal according to claim 8,
A communication control unit for detecting reception quality by the HSDPA communication;
The control unit periodically determines whether the reception quality detected by the communication control unit is equal to or higher than a predetermined reference quality, and if the reception quality is less than the reference quality, the acquisition instruction and the A portable terminal that notifies the server of position information. The mobile terminal according to claim 8,
The control unit periodically obtains the moving speed of the terminal from the position information acquired by the acquiring unit, determines whether the moving speed is equal to or higher than a predetermined reference speed, and the moving speed is the reference speed A mobile terminal that notifies the server of the acquisition instruction and the position information when the speed is equal to or greater than a speed. The mobile terminal according to any one of claims 8 to 11,
A storage unit for storing format information indicating a display format of the quality information;
The control unit converts the quality information received by the receiving unit into a display format indicated by the format information in the storage unit,
The said display part is a portable terminal which displays the quality information which the said control part converted. A communication system including a mobile terminal performing HSDPA communication and a server connectable to the mobile terminal,
The portable terminal is
An acquisition unit that acquires position information indicating the current position of the terminal;
An acquisition instruction indicating that the position information acquired by the acquisition unit and the communication quality by the HSDPA communication acquire quality information associated with each position information indicating a position within a range including at least the position indicated by the position information. And a control unit that notifies the server,
A receiving unit for receiving the quality information from the server;
A display unit for displaying the quality information received by the receiving unit,
The server
A storage unit for storing a database in which past reception quality of the mobile terminal by the HSDPA communication is associated with each position information;
A communication unit that receives the acquisition instruction and the position information from the mobile terminal;
A communication system including: a management unit that generates the quality information using position information received by the communication unit and a database in the storage unit, and notifies the portable terminal of the quality information. An electric field environment notification method performed by a server that can be connected to the portable terminal, including a storage unit that stores a database in which past reception quality of the portable terminal by HSDPA communication is associated with each position information,
From the portable terminal, the position information indicating the current position and the quality information in which the communication quality by the HSDPA communication is associated with each position information indicating a position within a range including at least the position indicated by the position information are acquired. An acquisition instruction to the effect, a receiving step for receiving,
A generation step of generating the quality information using the received position information and a database in the storage unit;
A notification step of notifying the portable terminal of the generated quality information. An electric field environment display method performed by a portable terminal connectable to a server,
An acquisition step of acquiring position information indicating the current position;
An acquisition instruction indicating that the acquired position information and quality information associated with each position information indicating a position within a range in which the communication quality by HSDPA communication includes at least the position indicated by the position information is acquired; A notification step of notifying the server;
Receiving the quality information from the server;
A display step of displaying the received quality information. A communication system comprising: a portable terminal that performs HSDPA communication; and a server that includes a storage unit that stores a database in which past reception quality of the portable terminal by the HSDPA communication is associated for each piece of location information, and is connectable to the portable terminal. The electric field environment display method performed by
An acquisition step in which the portable terminal acquires position information indicating a current position of the terminal;
The mobile terminal acquires quality information in which the acquired location information and communication quality by the HSDPA communication are associated with each location information indicating a location within a range including at least the location indicated by the location information. An acquisition instruction, and a notification step for notifying,
A receiving step in which the server receives the position information from the mobile terminal;
A generation step in which the server generates the quality information using the received position information and a database in the storage unit;
A notification step in which the server notifies the mobile terminal of the generated quality information;
An accepting step in which the portable terminal receives the quality information from the server;
A display step in which the portable terminal displays the received quality information.

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