JP4454794B2 - Communication method for mobile communication system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a communication how the moving body communication system.
[0002]
[Prior art]
In recent years, mobile communication systems typified by mobile phones have rapidly spread, and are widely used not only for ordinary calls but also for data communication such as electronic mail.
[0003]
In particular, portable personal computers have become smaller and lighter, and there are many occasions in which a relatively large amount of data is communicated by connecting it to a mobile phone or the like. As a result, for example, complicated operations such as accessing a company server from outside the office, searching for data, downloading necessary data, and creating a document are facilitated, and agile utilization is possible.
[0004]
[Problems to be solved by the invention]
However, in a conventional mobile communication system, for example, a so-called mobile computing that combines a mobile personal computer (PC) and a mobile communication device such as a mobile phone, when exchanging a large amount of data, There were the following problems.
[0005]
That is, in such a case, the mobile unit normally uses a recording device provided in the PC as a data storage destination. When communication is performed according to the intention of the mobile body, even if a large amount of data is exchanged, there is no problem. However, when the mobile body receives the data unilaterally, there are the following problems.
[0006]
For example, when a mobile communication device is to perform facsimile reception, a mobile phone is connected to a PC or a small facsimile device equipped with a printing device, and received data is not connected to the mobile phone body but to a connected PC or facsimile device. I was storing.
[0007]
In such a communication system, the mobile side that receives data needs to prepare for reception by connecting a mobile phone to a PC or the like in advance, while the mobile communication device can receive data on the side that transmits data. It was not possible to send it without confirming whether it was in In other words, the mobile unit that receives data had to know in advance that there is a facsimile transmission.
[0008]
In this way, when receiving data whose capacity is undetermined or when it is necessary to receive the data unexpectedly, the mobile communication device cannot receive the data and exhibits the mobility that is an advantage of the mobile communication device. I couldn't.
[0009]
The present invention aims at providing a communications how the moving body communication system that can be enhanced mobility of data received.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, according to a communication method of a mobile communication system according to claim 1 of the present invention , a mobile communication device receives data from a transmission device via a base station and records it on a recording medium. In the communication method of the mobile communication system, the mobile communication device transmits the attachment / detachment status of the recording medium to the base station, and the base station indicates the attachment / detachment status of the recording medium transmitted from the mobile communication device. When there is a call request from the transmission device to the mobile communication device, the transmission device notifies the transmission device of the received recording medium attachment / detachment status, and the transmission device calls the mobile communication device. When requested, if the recording medium is not loaded in the mobile communication device, the mobile communication device cannot receive based on the attachment / detachment status of the recording medium notified from the base station. And when the base station makes a call request to the mobile communication device and the mobile communication device is not loaded with the recording medium, the base station indicates that there has been a call request from the transmission device. The mobile communication device is notified, and the mobile communication device performs a display indicating that the call request has not been received and a display prompting the user to load the recording medium .
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of communications how the mobile communication system of the present invention will be described. The communication apparatus of this embodiment is applied to a mobile phone terminal.
[0021]
[First Embodiment]
FIG. 1 is a perspective view showing an appearance of a mobile phone terminal according to the first embodiment. FIG. 2 is a block diagram showing an electrical configuration of the mobile phone terminal. In the figure, reference numeral 11 denotes a wireless unit that transmits and receives wireless signals. The wireless unit 11 modulates a signal to be transmitted and transmits the signal as an electric wave to the outside via the antenna 11a. In addition, an external radio wave is received via the antenna 11 a, and the received signal is demodulated and sent to the signal processing unit 12.
[0022]
The signal processing unit 12 controls the entire apparatus, processes signals received from the outside via the wireless unit 11, and controls and drives each unit. A liquid crystal panel 13, an operation panel 14, a microphone 15 and a speaker 16 are connected to the signal processing unit 12.
[0023]
The liquid crystal panel 13 functions as a monitor that displays various information such as a confirmation display of a key input by the user, a radio wave state, a call duration, and a power state.
[0024]
The operation panel 14 includes a numeric keypad for inputting a destination number, a menu button used for various settings, a power switch, and the like. When the user operates using the operation panel 14, a control signal corresponding to the operation is sent to the signal processing unit 12, and the signal processing unit 12 displays characters on the liquid crystal panel 13, for example, according to the control signal. Perform processing such as.
[0025]
The microphone 15 converts the voice of the speaker into an electric signal and sends it to the signal processing unit 12. The signal processing unit 12 transmits the sound converted into the electric signal to the wireless unit 11 and transmits the sound from the wireless unit 11 to the outside as a radio wave.
[0026]
In the speaker 16, an audio signal received as a radio wave from the outside is processed by the signal processing unit 12, and the processed signal is reproduced as audio.
[0027]
A memory module 17 is detachably provided on the main body of the mobile phone terminal 1. The memory module 17 is a memory chip packaged in a card shape, and a connection terminal portion 18 is provided on one side of the module.
[0028]
FIG. 3 is a diagram showing a state where the memory module 17 is inserted into the main body insertion portion of the mobile phone terminal 1. When the memory module 17 is inserted into the main body insertion portion 32 of the mobile phone terminal 1, the connection terminal portion 19 provided at the back of the main body insertion portion 32 and the connection terminal portion 18 of the memory module 17 are brought into contact with each other to be electrically connected. 17 is connected to the circuit of the recording unit 20 via the connection terminal unit 19.
[0029]
The recording unit 20 records data in the memory module 17 according to a signal from the signal processing unit 12, reads data from the memory module 17, and sends it to the signal processing unit 12. Further, a detection switch 21 that detects the insertion of the memory module 17 is provided in the back of the main body insertion portion 32 of the mobile phone terminal 1. When the memory module 17 is inserted, the detection switch 21 is configured to be turned on when the protrusion 22 is pushed in by the housing of the memory module 17.
[0030]
The protrusion 22 of the detection switch 21 is biased in the convex direction by the spring 23, and when the protrusion 22 is in the convex state, the detection switch 21 is off. When the memory module 17 is removed from the main body insertion portion 32, the housing holding the protrusion 22 is released, so that the protrusion 22 is returned to the convex state by the spring 23, and the detection switch 21 is turned off.
[0031]
The detection switch 21 is connected to the signal processing unit 12, and a signal from the detection switch 21 is sent to the signal processing unit 12. The signal processing unit 12 performs predetermined processing according to ON / OFF of a signal input from the detection switch 21. This process will be described later.
[0032]
Thus, the user can arbitrarily attach / detach the memory module 17 to / from the main body of the mobile phone terminal 1, and the mobile phone terminal 1 can detect this attached / detached state.
[0033]
Here, a system related to location registration in mobile communication represented by a mobile phone terminal will be briefly described. FIG. 4 is a diagram showing a system related to location registration in mobile communication.
[0034]
Generally, in a mobile communication system, a wide communicable area is formed by installing base stations that are in contact with each other within a predetermined range. The area covered by one base station is limited. For example, when the mobile station a50 in the area covered by the base station A51 moves and moves from the area covered by the base station A51 to the area covered by another base station B52, the mobile station a50 communicates with the base station A51. The communication with the base station B52 is stronger than the radio wave, and a good communication situation can be obtained. That is, in order to ensure communication quality, the base station responsible for communication with the mobile station a50 is switched from the base station A51 to the base station B52.
[0035]
Thus, in order to provide a better communication situation, it is necessary to sequentially determine which base station is responsible for communication with the mobile station. For this purpose, the base station needs to know the current position of the mobile station. For example, it can be known by the following system.
[0036]
A mobile station in a communicable area communicates with the base station at predetermined time intervals, and registers ID information that identifies the mobile station itself to the base station with the best communication state due to the strength of the radio wave. To do. The call to the mobile station from the outside is performed through the base station in which the ID information is registered. Thereby, even when the mobile station moves, communication is performed with the base station with the best communication state according to the position.
[0037]
FIG. 5 is a flowchart showing an operation processing procedure of the mobile phone terminal 1. This processing program is stored in a ROM (not shown) in the signal processing unit 12 and is also executed by a CPU (not shown) in the signal processing unit 12.
[0038]
The mobile phone terminal 1 is characterized in that information indicating the attachment / detachment state of the memory module 17 is added to the ID information registered in the base station and transmitted. In the cellular phone terminal 1, the attachment / detachment of the memory module 17 is constantly monitored by turning on / off the detection switch 21. That is, the signal processing unit 12 checks the output of the detection switch 21 (step S1), and determines whether or not the memory module 17 is attached (step S2). When ID registration is performed at predetermined intervals, information corresponding to the output of the detection switch 21 is added to the ID information and transmitted.
[0039]
That is, when it is determined by the input from the detection switch 21 that the memory module 17 is installed, information indicating that the memory module 17 is installed is added to the ID information and transmitted to the base station (step S3). ). On the other hand, when the memory module 17 is not attached, information indicating that the memory module 17 is not attached is added to the ID information and transmitted to the base station (step S4). Further, an error display indicating that the memory module 17 is not mounted on the liquid crystal panel 13 is performed (step S5).
[0040]
The base station that has received the ID information holds the attachment / detachment information of the memory module 17 together with the ID information of the mobile phone terminal 1. In this way, the output of the detection switch 21 is constantly monitored by the signal processing unit 12 and communication of ID information with the base station is performed at a predetermined interval, so that the memory module 17 held in the base station can be attached and detached. Information about is updated sequentially. When the memory module 17 is attached / detached at a certain time, the memory attachment / detachment information is changed at the first ID registration after the attachment / detachment.
[0041]
Thereafter, the mobile phone terminal 1 enters a standby state and waits until the next location registration process is performed. That is, the signal processing unit 12 determines whether or not there is a reception request (step S6). If there is no reception request, the process returns to step S1, and if there is a reception request, the reception process is performed (step S7). . After the communication of the reception process is completed, the process returns to step S1, enters the standby state again, and waits until the next position registration process is performed.
[0042]
As described above, when the base station has a memory attachment / detachment information of the mobile station, when the call is made to the mobile station, the base station may return the memory attachment / detachment information of the mobile phone terminal 1 to the caller terminal. The caller can change the call processing according to the memory attach / detach information of the mobile station returned from the base station.
[0043]
A specific operation of the communication system will be described with reference to FIG. Assume that the mobile station b53 makes a call to transmit a facsimile to the mobile station a50. The base station B52 in which the ID information of the mobile station a50 is registered receives the call request and returns the memory information of the mobile station a50 to the mobile station b53. Thereby, the mobile station b53 can know whether or not the memory module 17 is attached to the mobile station a50.
[0044]
If the memory module 17 is not installed in the mobile station a50, the mobile station b53 knows that the memory module 17 is not installed in the mobile station a50 according to the information returned from the base station B52. Cancel. Then, the mobile radio terminal 1 of the mobile station b53 displays, for example, “The other party cannot receive” on the liquid crystal panel 13. In addition, the base station B52 notifies the mobile station a50 that a data communication call has been received from the mobile station b53, and the mobile phone terminal 1 of the mobile station a50 displays, for example, “The call cannot be received” on the liquid crystal panel 13. Please insert memory. ”Is displayed.
[0045]
As described above, in the first embodiment, by registering the memory attachment / detachment state together with the ID information in the base station, it is possible to know whether or not the communication partner mobile station is in a recordable state.
[0046]
Even when there is an unexpected reception request, the portable wireless terminal 1 can receive the data, and the removable memory module 17 can easily move the received data to another device.
[0047]
Furthermore, information can be shared with the communication partner by transmitting the attachment / detachment status of the memory module 17. Further, by displaying the attachment / detachment status of the memory module 17 on the liquid crystal panel 13, the user can easily know the attachment / detachment status of the memory module 17.
[0048]
[Second Embodiment]
Since the appearance of the mobile phone terminal of the second embodiment is the same as that of the first embodiment, description thereof is omitted. FIG. 6 is a block diagram showing an electrical configuration of the mobile phone terminal according to the second embodiment. About each part same as the said 1st Embodiment, the description is abbreviate | omitted by using the same code | symbol. The second embodiment is different from the first embodiment only in that the detection switch 21 is not provided, and the other configurations are the same.
[0049]
FIG. 7 is a flowchart showing an operation processing procedure of the cellular phone terminal 1 in the second embodiment. This processing program is stored in a ROM (not shown) in the signal processing unit 12 and is also executed by a CPU (not shown) in the signal processing unit 12.
[0050]
The feature of the cellular phone terminal 1 of the second embodiment is that information indicating the recordable capacity of the memory module 17 is added to the ID information registered in the base station and transmitted.
[0051]
First, when the cellular phone terminal 1 is in the standby state, the signal processing unit 12 inquires the recording unit 20 about the recordable capacity (memory remaining capacity) of the memory module 17 at predetermined time intervals (step S11). The recording unit 20 counts the remaining memory capacity of the memory module 17 and returns it to the signal processing unit 12. The signal processing unit 12 holds information on the remaining memory capacity returned from the recording unit 20. When the memory module 17 is not attached to the main body of the mobile phone terminal 1, the remaining memory capacity is set to 0.
[0052]
When the location registration process of the mobile phone terminal 1 is performed at predetermined time intervals, the signal processing unit 12 adds the remaining memory capacity to the ID information and transmits it to the base station (step S12). The base station that has received the ID information holds the remaining memory capacity data together with the ID information of the mobile station.
[0053]
Thereafter, the mobile phone terminal 1 enters a standby state and waits until the next location registration process is performed. That is, the signal processing unit 12 determines whether or not there is a reception request (step S13). If there is no reception request, the process returns to step S11. If there is a reception request, the reception process is performed (step S14). . After the communication of the reception process is completed, the process returns to step S11, enters the standby state again, and waits until the next position registration process is performed.
[0054]
The inquiry about the remaining memory capacity in step S11 is performed every predetermined time, and the ID information exchange with the base station is also performed at a predetermined interval, so that information regarding the attachment / detachment of the memory module 17 held in the base station can be obtained. Updated sequentially.
[0055]
In this way, when the base station has information on the remaining memory capacity of the mobile station, when there is a call to the mobile station, the base station can return information on the remaining memory capacity to the caller. The call processing can be changed according to the memory remaining capacity information of the mobile station returned from the base station.
[0056]
A specific operation of the communication system will be described with reference to FIG. Assume that the mobile station b53 makes a call to perform facsimile transmission to the mobile station a50. The base station B52 in which the ID information of the mobile station a50 is registered receives the call request and notifies the mobile station b53 of the remaining memory capacity of the mobile station a50. Thereby, the mobile station b53 can know the remaining memory capacity of the mobile station a50. If the remaining memory capacity of the mobile station a50 is larger than the data capacity to be transmitted, the call is continued and data transfer is performed when the line is connected. On the other hand, when the remaining memory capacity of the mobile station a50 is smaller than the data capacity to be transmitted, the call is stopped. Then, the mobile radio terminal 1 of the mobile station b53 displays, for example, “the destination cannot be received” on the liquid crystal panel 13. Also, the base station B52 notifies the mobile station a50 that the data communication was called from the mobile station b53, and the mobile wireless terminal 1 of the mobile station a50, for example, “cannot receive the call” on its liquid crystal panel 13. Please check the memory capacity. ”Is displayed.
[0057]
As described above, in the second embodiment, it is possible to know whether the mobile station is in a recordable state by registering the recordable capacity of the memory module 17 together with the ID information in the base station.
[0058]
Even when there is an unexpected reception request, the mobile phone terminal itself can receive data, and the removable memory module 17 can easily move the received data to another device. Further, the mobile phone terminal can grasp the recordable capacity of the memory module 17 and can change the reception process according to the state.
[0059]
Furthermore, by transmitting the recordable capacity, information can be shared with the communication partner, and the transmitting-side portable wireless terminal can grasp the status of the memory module of the receiving-side portable wireless terminal.
[0060]
Further, by displaying the recordable capacity on the liquid crystal panel 13, the user can easily know the recordable capacity of the memory module 17.
[0061]
[Third Embodiment]
The external appearance of the mobile phone terminal of the third embodiment is the same as that of the first embodiment, and the electrical configuration thereof is the same as that of the second embodiment, so that the description thereof is omitted.
[0062]
FIG. 8 is a flowchart showing an operation processing procedure of the cellular phone terminal 1 in the third embodiment. This processing program is stored in a ROM (not shown) in the signal processing unit 12 and is also executed by a CPU (not shown) in the signal processing unit 12.
[0063]
When the mobile phone terminal 1 receives a data reception request, the signal processing unit 12 inquires of the recording unit 20 about the remaining memory capacity (step S21). The signal processing unit 12 holds the remaining memory capacity returned from the recording unit 20. Further, the capacity of the data to be received is inquired to the transmission source, and the data capacity information is obtained and held (step S22).
[0064]
The signal processing unit 12 compares the remaining memory capacity with the data capacity (step S23), and if the remaining memory capacity is larger than the data capacity, receives the reception request and starts receiving (step S24). After the reception is completed (step S25), this process is terminated and a transition is made to a standby state.
[0065]
On the other hand, if the remaining memory capacity is smaller than the data capacity in step S23, the reception request is rejected and a reception failure notification is sent to the transmission source (step S26). Further, for example, “Data could not be received. Check the memory capacity.” Is displayed on the liquid crystal panel 13 (step S27). At this time, the data capacity and the remaining memory capacity may be displayed at the same time. Thereafter, the state shifts to a standby state.
[0066]
As described above, in the third embodiment, when there is a reception request, the remaining memory capacity of the memory module 17 and the capacity of the reception data are compared, and even when there is an unexpected reception request, a reception failure notification is performed. Thus, the mobile phone terminal on the transmission side can grasp the status of the memory module 17 of the mobile phone terminal on the reception side.
[0067]
Further, by displaying the recordable capacity on the liquid crystal panel 13, the user can easily know the reception error of the memory module 17.
[0068]
The above is the description of the embodiments of the present invention. However, the present invention is not limited to the configurations of these embodiments, and the functions indicated in the claims or the functions of the configurations of the embodiments are achieved. Any configuration that can be applied is applicable.
[0069]
For example, in each of the above-described embodiments, the case where the memory module is provided in the mobile phone terminal is detachable. However, a small facsimile machine, an information portable terminal, etc. may be provided in a removable manner instead of the memory module. Good. In this case, it is preferable that a small-sized facsimile apparatus, an information portable terminal, and the like have a built-in memory having a sufficient capacity to hold received data.
[0070]
It goes without saying that the present invention can also be applied to a case in which a recording medium storing software program codes for realizing the functions of the above-described embodiments is achieved by supplying a program to a mobile phone terminal. In this case, the program code itself read from the storage medium realizes the novel function of the present invention, and the storage medium storing the program constitutes the present invention.
[0071]
In the above embodiment, the program codes shown in the flowcharts of FIGS. 5, 7, and 8 are stored in the ROM in the signal processing unit 12 that is a storage medium. The storage medium for supplying the program code is not limited to the ROM, and for example, a floppy disk, a hard disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a DVD, a magnetic tape, a nonvolatile memory card, or the like may be used. it can.
[0072]
【The invention's effect】
According to the present invention, it is possible to enhance the mobility of the data received. Namely, the transmitting device, knowing the detachable state of the recording medium in a mobile communication device, can be a communication device to know whether it is in a state capable of recording, the user of the mobile communication device, mobile Since the call request cannot be received because the recording medium is not loaded in the body communication device, it can be known that the recording medium needs to be loaded .
[Brief description of the drawings]
FIG. 1 is a perspective view showing an external appearance of a mobile phone terminal according to a first embodiment.
FIG. 2 is a block diagram showing an electrical configuration of a mobile phone terminal.
3 is a diagram showing a state in which a memory module 17 is inserted into a main body insertion portion of the mobile phone terminal 1. FIG.
FIG. 4 is a diagram showing a system related to location registration in mobile communication.
FIG. 5 is a flowchart showing an operation processing procedure of the mobile phone terminal 1;
FIG. 6 is a block diagram showing an electrical configuration of a mobile phone terminal according to the second embodiment.
FIG. 7 is a flowchart showing an operation processing procedure of the mobile phone terminal 1 in the second embodiment.
FIG. 8 is a flowchart showing an operation processing procedure of the mobile phone terminal 1 in the third embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cellular phone terminal 11 Radio | wireless part 12 Signal processing part 13 Liquid crystal panel 14 Operation panel 17 Memory module 20 Recording part 21 Detection switch

Claims (1)

In a communication method of a mobile communication system in which a mobile communication device receives data from a transmission device via a base station and records the data on a recording medium.
The mobile communication device transmits the attachment / detachment status of the recording medium to the base station,
The base station receives the removable status of the recording medium transmitted from said mobile communication device, when there is a call request from the transmitting device to the mobile communication device, removable status of the received recording medium To the transmitting device,
When the transmission device makes a call request to the mobile communication device and the recording medium is not loaded in the mobile communication device, the transmission device is based on the attachment / detachment status of the recording medium notified from the base station. Display that the mobile communication device cannot receive,
When the base station makes a call request to the mobile communication device, and the recording medium is not loaded in the mobile communication device, the mobile communication indicates that there has been a call request from the transmission device. A communication method for a mobile communication system , characterized in that a notification is sent to the apparatus, and the mobile communication apparatus performs a display indicating that the call request has not been received and a display prompting the user to attach a recording medium .

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