JP2001069544A - Mobile communication unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile communication unit that transmits an electronic mail under a transmission condition, where charging and power consumption become advantageous in a terminal for mobile communication capable of transmission of an electronic mail. SOLUTION: This mobile communication unit 1 consists of a transmission reception section 2 that makes transmission reception with a base station, a measurement section 3 that measures a communication state, an entry section 4 that receives entry by a user, a storage section 5 that stores data of a generated electronic mail and a communication condition or the like, a processing section 6 that conducts input output control or the like of each section, a discrimination section 6a that discriminates whether a communication state satisfies the communication condition, holds transmission of an electronic mail, until the communication condition is satisfied and then immediately transmits the electronic mail whose transmission is held when the communication condition is satisfied, and a display section 7 that displays the transmission state or the like of an electronic mail.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone, a PHS
And other mobile communication devices used for mobile communication.

[0002]

2. Description of the Related Art At present, an e-mail function is provided as an additional function in a mobile communication service such as a cellular phone, and is generally used. When sending an e-mail using these services, first create the e-mail and then perform the sending operation. And
The transmission of the e-mail is started from the time when this transmission operation is performed. In such a conventional method, when moving, an e-mail is transmitted irrespective of a poor radio wave condition or an area where a call charge is high. In the invention disclosed in Japanese Patent Application Laid-Open No. 7-143163, delayed delivery of created mail is performed. In the present invention, the mail is held until the designated transmission time comes, and the mail is transmitted to the destination when the designated time comes.

[0003]

In mobile communication such as a mobile phone, the mobile phone is not always in the same radio wave environment as described above. The radio wave condition may be deteriorated due to reflection or the like. Further, the vehicle may pass through an area having a low electric field strength such as a suburban area. If transmission is performed in such a case, the call is interrupted in the middle or retransmission control is frequently performed.
This is inconvenient for the user, and may incur additional call charges.

[0004] When power control is performed to increase or decrease the transmission power according to conditions, transmission is performed in a weak electric field area with a higher transmission power than in a strong electric field area. In other words, when transmitting in areas where the transmission power is high,
There was a drawback that the duration of the battery was shortened. In some cases, there is a distinction between ROHM and home service areas. A general terminal device does not make a call determination based on such service area distinction. For this reason, when the e-mail was created, the user was in the roaming area, and when making a call in this roaming area, the call charge was sometimes higher than in the home area. Further, in the case of a mechanism in which a stored mail is simply transmitted at a designated time, as in the invention disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 7-143163, the merits of the user in terms of charge, battery duration, and the like are low. Absent.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and in a mobile communication terminal device capable of transmitting an e-mail, the e-mail is transmitted under a transmission condition under which charging and power consumption are advantageous. A mobile communication device that performs transmission is provided.

[0006]

SUMMARY OF THE INVENTION A mobile communication device according to the present invention is a mobile communication device capable of wirelessly communicating with a base station and transmitting an electronic mail. A storage unit that stores the data of the e-mail, and, until a predetermined condition is satisfied, the transmission of the e-mail stored in the storage unit is delayed, and when the predetermined condition is satisfied,
And a processing unit for transmitting the e-mail.

According to the present invention, it is possible to transmit an e-mail which does not generally need to be transmitted in real time under optimal communication conditions. In other words, transmission failures and the like when communication conditions are poor can be prevented, and retransmission can be suppressed. As a result,
Power consumption can be suppressed, and the duration of a battery used as a power source can be extended.

Further, in the mobile communication device according to the present invention, the mobile communication device includes a measuring section for measuring a communication state, and the processing section, in the processing section, the communication state measured by the measuring section satisfies a predetermined communication condition. A determination unit configured to determine whether the condition is satisfied and to delay transmission of the electronic mail stored in the storage unit until the communication condition is satisfied.

Further, in the mobile communication device according to the present invention, the measuring section measures the electric field strength of the received radio wave, and the judging section judges whether the electric field strength satisfies a predetermined communication condition. And

In the present invention, the communication state is determined using the electric field strength of the received radio wave. For example, on a mobile phone,
At the time of standby, the radio wave of the base station currently being received and the radio waves of the surrounding base stations are periodically received. Then, when a radio wave stronger than the currently received radio wave is received, there is control to switch to that. One of the information used for this control is the reception electric field strength. According to the present invention, using this information, transmission of an e-mail is automatically started in a place where the electric field strength is strong. In addition, even in a place where the received electric field strength is strong, a track may pass through or enter a shadow of a building while moving, resulting in a state where the electric field strength is weak.
Therefore, in order to measure the stability of the electric field strength, the fluctuation rate of the electric field strength within a certain time is observed, and when it is determined that the electric field strength is stable, an e-mail may be transmitted.

In the mobile communication device according to the present invention, the measuring section measures a BER or a FER of a received signal, and the determining section determines whether the BER or the FER satisfies a predetermined communication condition. It is characterized by the following.

The BER is the Bit Error R
FER, and FER is Frame Error
Rate is an abbreviation for Rate. Even in places where the electric field strength is strong, in places where there are many interference waves, data may not be able to be received correctly, and due to the procedure of communication control with the base station, reception may not be accurate, and the call sequence may fail. There is.
According to the present invention, BER and FER are measured, and using this information (communication state), BER and FER are equal to or less than predetermined values.
The system automatically starts sending emails when it is stable enough. By doing so, the e-mail can be transmitted under more stable conditions.

Further, in the mobile communication device according to the present invention, the mobile communication device further includes a position detection unit for detecting a position of the mobile communication device, and the position detection unit includes the mobile communication device. Determining whether the mobile communication device is located in a home area or a roaming area, and delaying transmission of the electronic mail stored in the storage unit until it is determined that the mobile communication device is positioned in the home area. It is characterized by.

[0014] Here, a service area with a low telephone charge is assumed to be a home area. According to the present invention, the home area and the roaming area having different billing are identified, and the transmission of the electronic mail is started in the home area. Therefore, the transmission can be performed in the home area where the call charge is low.

Further, in the mobile communication device of the present invention, the position detecting section detects the position of the mobile communication device based on position information reported from a base station, or
Detection is performed using S. In addition, GPS
Is Global Positioning Sys
tem.

Further, in the mobile communication device according to the present invention, the processing unit may change the transmission state from a standby state after a call is established after a call is originated or received, or when the mobile terminal starts registration with a base station. And transmitting the e-mail stored in the storage unit at the end of the call or the end of the registration operation.

According to the present invention, an e-mail is transmitted under a state in which a call is established, that is, a state in which the communication state is considered to be stable. Therefore, transmission failure and the like when the communication state is poor can be prevented, and retransmission can be suppressed. As a result, power consumption can be suppressed and the duration of a battery used as a power supply can be extended. In a system capable of simultaneously performing voice communication and data communication, a stored mail can be transmitted by a single outgoing call or incoming call.

Further, in the mobile communication device according to the present invention, the mobile communication device further includes a display unit, and the display unit displays information relating to transmission of the created electronic mail. I do. According to the present invention, the user of the mobile communication device can know whether the previously created e-mail has already been sent or kept stored.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a mobile communication device according to an embodiment of the present invention. FIG.
Is an operation flowchart common to this embodiment and second and third embodiments described later.

As shown in FIG. 1, a mobile communication device 1 according to the present embodiment includes a transmitting / receiving unit 2, a measuring unit 3, an input unit 4,
It comprises a storage unit 5, a processing unit 6, a determination unit 6a, and a display unit 7.

The transmission / reception unit 2 receives and decodes radio waves transmitted from the base station, and encodes and transmits data to be transmitted from the mobile communication device 1 to the base station. Measuring unit 3
Is the electric field strength or BER or FE of the received radio wave
R is measured via the transmission / reception unit 2. The input unit 4 receives an input from a user. The storage unit 5 stores communication conditions including a separately determined electric field strength or a BER or FER threshold value, e-mail data input by a user, and the like. The processing unit 6 performs input / output control of each unit connected to the processing unit 6 and performs a separately determined process. The display unit 7 displays presence / absence of the stored e-mail, whether or not the e-mail has been transmitted, and the like.

The determination unit 6a is included in the processing unit 6, receives the electric field strength or BER or FER measured by the measurement unit 3, compares it with the communication conditions stored in the storage unit 5, and sends an e-mail. It is determined whether the communication condition (communication environment) is good (determines whether the transmission conditions are met). Here, a communication state that is good for transmitting an e-mail is a state in which communication cannot be stopped halfway and retransmission control is unlikely to occur. Further, the determination unit 6a determines whether the communication is in a good communication state at the time when the e-mail is created. If the communication is determined to be in the good communication state, the e-mail is immediately transmitted. The determination is repeated until an e-mail is sent. Further, even in a place where the measured electric field strength is strong, the electric field strength fluctuates due to a truck passing or entering a shadow of a building while moving, and the electric field strength may be weak. Therefore, in order to measure the stability of the electric field strength, the fluctuation rate of the electric field strength within a certain period of time (for example, several tens of seconds to one minute) is observed. Is also good. In some cases, an e-mail may be transmitted immediately according to the user's specification (the specification by the user is also a communication condition).

The transmitting / receiving unit 2 is composed of a circuit including an antenna, and the measuring unit 3 may use a dedicated circuit, or the processing unit 6 may measure BER or FER. The input unit 4 includes operation buttons and operation dials. The storage unit 5 stores a ROM (Read Onl).
y Memory), RAM (RANDOM ACCE)
SS MEMORY). The processing unit 6 is constituted by a CPU (central processing unit) or a dedicated processing circuit. The display unit 7 includes a liquid crystal panel, an EL panel, an organic EL panel, an LED, and the like.

Next, the operation of the mobile communication device 1 according to the present embodiment configured as described above will be described.

First, when the contents of the e-mail are input by the user from the input unit 4, the processing unit 6 stores the data of the e-mail input from the input unit 4 in the storage unit 5 (step S11). When the user performs an e-mail transmission operation (step S12), the transmission / reception unit 2
Receives the radio wave transmitted from the base station, and the measuring unit 3 measures the communication state based on the electric field strength or BER or FER. The determination unit 6a compares the communication condition stored in the storage unit 5 with the communication state measured by the measurement unit 3, and determines whether the communication state satisfies the communication condition (step S13).

Here, when it is determined that the communication state satisfies the communication condition, the determination unit 6a immediately reads out the electronic mail stored in the storage unit 5 and transmits it via the transmission / reception unit 2 (step S14). ). Then, the processing unit 6 causes the display unit 7 to display that the e-mail has been transmitted. If it is determined in step 13 that the communication state does not satisfy the communication condition, the determination unit 6a suspends the transmission of the e-mail, and causes the display unit 7 to display that the e-mail is suspended. Step S15). Further, the determination unit 6a
Determines whether the communication state satisfies the communication condition (step S16) and determines whether the communication state satisfies the communication condition (step S16) and determines whether the mail transmission is suspended (step S15). Repeat until is complete.

In the present embodiment, transmission failure and the like when communication is poor can be prevented, and retransmission can be suppressed. As a result, power consumption can be suppressed and the duration of a battery used as a power supply can be extended. . As above, the first embodiment of the present invention has been described.

Next, a mobile communication device according to a second embodiment of the present invention will be described with reference to the drawings. FIG. 3 is a block diagram showing a configuration of the mobile communication device of the embodiment. FIG.
5 is an operation flowchart for selecting an area to send an e-mail.

As shown in FIG. 3, the mobile communication device 1 according to the present embodiment has a transmission / reception unit 2, a position detection unit 3 ', an input unit 4, a storage unit 5, a processing unit 6, a display unit Unit 7. Note that the transmitting / receiving unit 2, the input unit 4, the storage unit 5,
The processing unit 6 and the display unit 7 are the same as in the first embodiment, and a description thereof will be omitted.

The position detecting section 3 'is provided with a system information, for example, a PDC (Personal Digital Ce) broadcast from a base station (network side) to receive in a standby state.
BCCH (Broad Cas)
It detects home area and roam area information included in information such as a ting control channel (broadcast information) and system parameter messages in a cdma mobile communication system. Alternatively, using the GPS, the current position of the mobile communication device 1 is detected, and from the position information of the service area preset in the storage unit 5, whether the mobile communication device 1 is located in the home area or the roam area is determined. recognize. And the mobile communication device 1
Is detected in the home area, the storage unit 5
To send the e-mail stored in.

When a service having a different call charge depending on the time of use is provided, a time detecting unit (not shown) for detecting a preset time is further provided, and an e-mail is sent during a time when the call charge is low. May be transmitted.

Next, the operation of the mobile communication device 1 according to the present embodiment configured as described above will be described.

First, the processing unit 6 causes the display unit 7 to display the service area at the current position and the service area that can be selected (FIG. 4: step S01). Then, when the user selects and inputs an area for transmitting an e-mail from the input unit 4, the processing unit 6 causes the storage unit 5 to store the selected area (FIG. 4: step S02).

Next, when the user inputs the contents of the e-mail from the input unit 4, the processing unit 6 stores the data of the e-mail input from the input unit 4 in the storage unit 5 (FIG. 2: Step S11). Next, when an input of an e-mail transmission operation is received from the input unit 4 by the user (FIG. 2:
Step S12), the transmission / reception unit 2 receives a radio wave transmitted from the base station, and the position detection unit 3 'determines whether the vehicle is located in the home area or the roaming area based on the system information broadcast from the base station. Is detected. As described above, the position may be detected using the GPS. Then, the determination unit 6a determines whether the mobile communication device 1 is located in the home area (FIG. 2: Step S13).

In the determination of step S13, the mobile communication device 1
If it is determined that is located in the home area, the e-mail stored in the storage unit 5 is read and transmitted via the transmission / reception unit 2 (FIG. 2: step S14). Then, the processing unit 6 causes the display unit 7 to display that the e-mail has been transmitted. If it is determined in step S13 that the e-mail is located in the roaming area, the transmission of the e-mail is suspended, and the processing unit 6 displays on the display unit 7 that the e-mail is suspended. (FIG. 2: Step S1)
5). Further, the determination unit 6a determines whether there is an e-mail suspended for transmission (FIG. 2: step S16).
The determination as to whether the communication state satisfies the communication condition (FIG. 2: step S13) and the operation of suspending the mail transmission (FIG. 2: step S15) are repeated until the transmission of the e-mail is completed.

As described above, according to the present embodiment, the home area and the roaming area having different charges are identified, and the transmission of the e-mail is started in the home area. It becomes possible. In particular, a user resident near the boundary of the service area often moves between the home area and the roam area, and is more effective for such a user. As above, the second embodiment of the present invention has been described.

Next, a mobile communication device according to a third embodiment of the present invention will be described with reference to the drawings. FIG. 5 is a block diagram showing a configuration of the mobile communication device of the embodiment.

As shown in FIG. 5, the mobile communication device 1 of the present embodiment includes a transmitting / receiving unit 2, an input unit 4, a storage unit 5,
It comprises a processing unit 6, a determination unit 6a, and a display unit 7. Note that the transmitting / receiving unit 2, the input unit 4, the storage unit 5, the processing unit 6, and the display unit 7 are the same as those in the first embodiment, and a description thereof will be omitted.

The determination unit 6a further performs the following determination and operation starting from the input of the e-mail transmission operation by the user or when it is determined that the e-mail is stored in the storage unit 5. That is, when making or receiving a call,
It is determined whether or not the communication is terminated and the communication is terminated after waiting at the start of registration, or whether or not the registration operation has been completed after the registration of the mobile communication device 1 to the base station has been started. , The electronic mail stored in the storage unit 5 is immediately transmitted.

Next, the operation of the mobile communication device 1 according to the present embodiment thus configured will be described.

First, when the contents of the e-mail are input by the user through the input unit 4, the processing unit 6 stores the data of the e-mail input from the input unit 4 in the storage unit 5 (FIG. 2: Steps). S11). Next, when an input of an e-mail transmission operation is received from the input unit 4 by the user (FIG. 2: step S12), the determination unit 6a makes a call or an incoming call successfully, and starts the user's call. Is completed, or after the registration starts, it is determined whether the registration operation has been completed (FIG. 2: step S13).

If it is determined in step S13 that the above condition is satisfied, the electronic mail stored in the storage unit 5 is read out and transmitted via the transmission / reception unit 2. Then, the processing unit 6 causes the display unit 7 to display that the e-mail has been transmitted (FIG. 2: step S14). If it is determined in step S13 that the transmission condition is not satisfied, the transmission of the e-mail is suspended, and the processing unit 6 notifies the display unit 7 that the e-mail is suspended. It is displayed (FIG. 2: step S15). Further, the determination unit 6a determines whether the communication condition is currently satisfied (FIG. 2: step S13) from the determination whether there is an e-mail suspended for transmission (FIG. 2: step S16) and determines whether the e-mail is suspended. The operation (FIG. 2: step S15) is repeated until the transmission of the e-mail is completed.

In the present embodiment, an e-mail is transmitted in a state in which a call can be made, that is, a state in which the communication state is considered to be stable. Therefore, transmission failure and the like when the communication state is poor can be prevented, and retransmission can be suppressed. As a result, power consumption can be suppressed and the duration of a battery used as a power supply can be extended. In a system capable of simultaneously performing voice communication and data communication, a stored mail can be transmitted by a single outgoing call or incoming call. As above, the third embodiment of the present invention has been described.

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. Further, the operation flow used in the description is an example, and the present invention is not limited to this, and may shift to other processing due to an interrupt or the like. Although the first to third embodiments have been described above, a combination of these embodiments may be adopted.

[0045]

As described above in detail, according to the present invention, the transmission of an e-mail is delayed until the communication condition is satisfied, so that a better communication state (communication environment) is set as the communication condition. As a result, it is possible to suppress disconnection of communication and repetition of retransmission during transmission of an e-mail, and as a result, it is possible to prolong the duration of the power supply battery.
Further, according to the present invention, the current position of the mobile communication device is detected, and when the mobile communication device is located in the home area, the electronic mail is transmitted, so that the call charge can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a mobile communication device according to a first embodiment of the present invention.

FIG. 2 is an operation flowchart of the mobile communication device according to the first to third embodiments of the present invention.

FIG. 3 is a block diagram illustrating a configuration of a mobile communication device according to a second embodiment of the present invention.

FIG. 4 is an operation flowchart for selecting an area to which an e-mail is transmitted in the embodiment.

FIG. 5 is a block diagram illustrating a configuration of a mobile communication device according to a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Mobile communication apparatus 2 ... Transmission / reception part 3 ... Measurement part 3 '... Position detection part 4 ... Input part 5 ... Storage part 6 ... Processing part 6a ... Judgment part 7 ... Display part

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04L 12/58 F term (Reference) 5B089 GA25 HA11 JA31 KA00 KA16 KC28 LA01 LB23 5K030 HA06 HC09 JL01 JT09 KA06 KA08 LB02 MA04 MB01 5K067 AA29 BB04 CC21 DD19 DD51 EE04 EE10 FF02 FF05 FF23 GG01 HH23 JJ52 JJ56 KK15

Claims (8)

[Claims] 1. A mobile communication device capable of wirelessly communicating with a base station and transmitting an electronic mail, the mobile communication device comprising: a storage unit for storing data of the generated electronic mail; A transmission unit for delaying transmission of the e-mail stored in the storage unit until a condition is satisfied, and transmitting the e-mail when the predetermined condition is satisfied. Body communicator. 2. The mobile communication device according to claim 1, wherein the measuring unit measures a communication state, and the processing unit determines whether the communication state measured by the measuring unit satisfies a predetermined communication condition. The mobile communication device according to claim 1, further comprising: a determination unit configured to delay transmission of the electronic mail stored in the storage unit until the condition is satisfied. 3. The mobile device according to claim 2, wherein the measuring unit measures the electric field intensity of the received radio wave, and the determining unit determines whether the electric field intensity satisfies a predetermined communication condition. Body communicator. 4. The method according to claim 2, wherein the measuring unit measures a BER or a FER of a received signal, and the determining unit determines whether the BER or the FER satisfies a predetermined communication condition. The mobile communication device according to claim 3. 5. The mobile communication device further includes a position detection unit that detects a position of the mobile communication device, wherein the position detection unit determines whether the mobile communication device is located in a home area, Determine whether the mobile communication device is located in the roaming area, until the mobile communication device is determined to be located in the home area,
5. The mobile communication device according to claim 1, wherein transmission of the electronic mail stored in the storage unit is delayed. 6. The position detection unit according to claim 5, wherein the position of the mobile communication device is detected by position information notified from a base station or by using GPS. A mobile communication device according to claim 1. 7. The processing unit changes from a standby state such as after a call is established after a call or an incoming call or at the start of registration from the mobile terminal device to a base station to a transmission state, and the call is terminated or registered. 7. An electronic mail stored in the storage unit is transmitted when the operation is completed.
The mobile communication device according to any one of the above. 8. The mobile communication device according to claim 1, further comprising a display unit, wherein the display unit displays information relating to transmission of the created electronic mail. The mobile communication device according to any one of the above.