JP4032194B2 - Mobile communication system and mobile communication apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mobile communication system and a mobile communication apparatus suitable for a mobile phone, for example.
[0002]
[Prior art]
Recently, mobile phones using public wireless lines are rapidly spreading due to their ability to move over a relatively wide range and a high degree of freedom in call positions.
[0003]
As shown in FIG. 7, the public mobile phone system includes a plurality of base stations 1a, 1b, 1c,... Each having service areas SAa, SAb, SAc,. The switching control station 2 is connected to the base stations 1a, 1b, 1c,... Through the TKb, TKc,.
[0004]
Each mobile phone 10 can make a call via the corresponding base station 1a, 1b, 1c,... Only in each service area SAa, SAb, SAc,.
[0005]
In addition, the location of each mobile phone 10 is registered with a base station whose location is the service area, even when moving, based on wireless communication on a predetermined control channel.
[0006]
When the mobile phone 10 moves from the service area SAa of any base station 1a to the service area SAb of the adjacent base station 1b, both base stations 1a are located in the vicinity of the boundary between both service areas SAa and SAb. , 1b, a so-called “hand-off” is performed in which the base station connected to the mobile phone 10 is switched from one base station 1a to the other base station 1b based on the strength of the control channel radio waves.
[0007]
When this handoff is executed, on the base station side, the location registration of the mobile phone 10 is updated from one base station 1a to the other base station 1b.
[0008]
[Problems to be solved by the invention]
By the way, with the widespread use of mobile phones, personalization has progressed, and the frequency of use not only at home and on the move but also at home and in the office is increasing.
[0009]
However, in the mobile phone system as described above, both the mobile phone side and the base station side are set on the assumption of the handoff as described above due to the movement of the mobile phone. Even when a mobile phone is used in a substantially fixed state, unnecessary traffic is generated in the wireless line due to communication on the control channel for handoff, and the efficiency of the line traffic deteriorates. There was a problem that.
[0010]
In view of the above, an object of the present invention is to provide a mobile communication system and a mobile communication device that increase the efficiency of line traffic by prohibiting handoff when used in a fixed state. There is a place to do.
[0011]
[Means for Solving the Problems]
In order to solve the above-described problem, a mobile communication system according to the invention of claim 1 includes:
An antenna, a transmission means, a reception means, a key input means, and a display means, and a reception field strength detection means and a plurality of base stations capable of predetermined wireless communication based on the detection output of the reception field strength detection means In a mobile communication device comprising a base station selection means for selecting the nearest base station,
Request sending means for sending a request for prohibiting and canceling the wireless communication to the nearest base station in response to a predetermined input corresponding to a fixed and moving state;
Selection control means for prohibiting and canceling the nearest base station selection by the base station selection means in response to the predetermined input;
Pedestal placement detection means for detecting placement and detachment on a predetermined pedestal;
With
The request sending means and the selection control means are responsive to the detection output of the pedestal mounting detection means .
[0016]
In the mobile communication device according to the first aspect of the present invention, the wireless communication prohibition request is transmitted based on an appropriate key operation by the user while the mobile communication device is fixed. Thus, on the base station side, wireless communication on the control channel for handoff is prohibited, generation of unnecessary traffic is avoided, and line traffic efficiency is improved.
[0017]
In addition, prohibition and cancellation of wireless communication for handoff are displayed on the display of the mobile communication device, thereby preventing an operation error of the user.
[0019]
Further, in the mobile communication device according to the first aspect of the present invention, the wireless communication prohibition and prohibition release for handoff are automatically selected in accordance with the placement and disengagement from the predetermined pedestal. When the mobile communication device is fixed, wireless communication on the control channel is prohibited on the base station side, so that unnecessary traffic is avoided and line traffic efficiency is improved.
[0020]
A mobile communication device according to the invention of claim 2
An antenna, a transmission means, a reception means, a key input means, and a display means, and a reception field strength detection means and a plurality of base stations capable of predetermined wireless communication based on the detection output of the reception field strength detection means In a mobile communication device comprising a base station selection means for selecting the nearest base station,
Pedestal placement detection means for detecting placement and detachment on a predetermined pedestal ;
A request sending means for sending a request for prohibition and prohibition release of the wireless communication to the nearest base station in response to the detection output of said pedestal mounting置検detecting means,
Selection control means for prohibiting and canceling the nearest base station selection by the base station selection means in response to the detection output of the pedestal mounting detection means;
It is characterized by providing .
[0021]
In the mobile communication device according to the second aspect of the present invention, prohibition and cancellation of wireless communication for handoff are automatically selected in response to limited placement and removal from a predetermined pedestal. Therefore, when the mobile communication device is fixed on the pedestal, wireless communication on the control channel is prohibited on the base station side, unnecessary traffic is avoided, and line traffic efficiency is improved. To do.
[0022]
A mobile communication device according to the invention of claim 3
The mobile communication device according to claim 1 or 2 ,
Providing communication interface means;
A second communication interface means corresponding to the communication interface means is provided on the pedestal.
[0023]
In the mobile communication system according to the invention of claim 3 of such a configuration, by connecting a computer to the second communication interface, usability at the time of data communication via the mobile communication device is good Kunar.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a mobile communication device according to the present invention will be described with reference to FIGS.
[0025]
[Configuration of the embodiment]
The configuration of the embodiment of the present invention is shown in FIG.
[0026]
In FIG. 2, the mobile phone 10 includes an antenna 11 for transmission and reception, and various input keys such as a transmitter 12 and a receiver 13 and a dial key 14 as a so-called man-machine interface, and a liquid crystal display 15. Prepare.
[0027]
The shared circuit 21 connected to the antenna 11 is connected to a transmission circuit 22 and a reception circuit 23 to exchange a high-frequency transmission signal and a high-frequency reception signal. The reception circuit 23 includes an AGC circuit 24.
[0028]
The transmission circuit 22 and the reception circuit 23 are also connected to the baseband processing circuit 25, and exchange of transmission signals and reception signals is performed.
[0029]
Further, the baseband processing circuit 25 is connected to the transmitter 12 and the receiver 13 through the audio amplifier circuits 26 and 27, respectively, and exchanges audio signals.
[0030]
Then, the transmission circuit 22, the reception circuit 23, and the baseband processing circuit 25 are connected to a system control circuit (microcomputer) 31, and control signals are exchanged, and the output voltage Vgc of the AGC circuit 24 is The signal is supplied to the system control circuit 31 to detect the input level of the high frequency reception signal, in other words, the electric field strength of the radio wave from the receivable base station. The detection of the electric field intensity is executed by an interrupt routine with a predetermined period.
[0031]
The system control circuit 31 is connected to various input keys including the dial key 14 and a ROM 32 storing various programs.
[0032]
Further, the liquid crystal display 15 is connected via the drive circuit 33, and for example, the inputted telephone number is displayed.
[0033]
Further, for example, required direct-current power is supplied to each unit from a power source 39 formed of an appropriate secondary battery such as a lithium ion storage battery. The above-described configuration is the same as that of a conventional mobile phone.
[0034]
In this embodiment, a handoff switching processing routine, which will be described later, is stored in the ROM 32, and a charging stand placement detection unit 34 for detecting placement on the charging stand 40 as shown in FIG. Connected to the control circuit 31.
[0035]
The system control circuit 31 of this embodiment includes reception field strength detection means, base station selection means, selection control means, and request transmission means as functional means. These functional means are realized by microcomputer software.
[0036]
As shown in FIG. 3, the charging stand 40 is provided with a charging circuit 41 and the mobile phone 10 is placed on the charging stand 40 corresponding to the above-described charging stand placement detection unit 34. A placement detection output unit 44 is provided for detecting the above.
[0037]
When the mobile phone 10 as described above is placed on the charging stand 40, the charging circuit 41 is connected to the power source 39, the secondary battery is charged, and the placement detection output unit 44 and the charging stand are mounted. The position detection unit 34 is mechanically or electrically coupled, and the detection signal of the charging stand mounting detection unit 34 is supplied to the system control circuit 31.
[0038]
When the mobile phone 10 is removed from the charging stand 40, the charging circuit 41 is disconnected from the power source 39, the charging of the secondary battery is stopped, and the placement detection output unit 44 and the charging stand placement detection unit 34. And the detection signal of the charging stand mounting detector 34 disappears.
[0039]
Then, in the system control circuit 31, handoff switching processing as described below is executed, and handoff prohibition and prohibition release are automatically selected according to attachment / detachment of the mobile phone 10 to / from the charging stand 40.
[0040]
[Handoff switching processing of embodiment]
Next, the handoff switching process according to the embodiment of the present invention will be described with reference to FIG.
[0041]
When the handoff switching processing routine 100 of this embodiment starts, in the first step 101, whether or not the mobile phone is mounted on the charging stand, in other words, whether or not the mobile phone is used in a fixed state. Is judged. This determination is made based on the detection signal of the charging stand mounting detection unit as described above.
[0042]
If the mobile phone is placed on the charging stand and the handoff process is meaningless, the process proceeds to step 102, and the handoff process on the mobile phone side is prohibited by stopping the aforementioned electric field strength detection routine. .
[0043]
In the next step 103, a request for prohibiting handoff processing is transmitted to the base station. On the base station side, for example, software is used in the above-described exchange control station (see FIG. 7) in response to the prohibition request. The communication control means prohibits wireless communication using the control channel between the requesting mobile phone and the nearest base station for handoff processing, and the routine 100 ends.
[0044]
On the other hand, when the mobile phone is removed from the charging stand and it is determined in step 101 that the mobile phone is not placed on the charging stand, the process proceeds to step 104, and the above-described electric field strength detection routine is started. The handoff process on the mobile phone side is released from prohibition.
[0045]
In the next step 105, a request for canceling handoff processing prohibition is transmitted to the base station, and in response to the prohibition canceling request, the base station side uses the communication control means as described above to request the request source for handoff processing. The prohibition of wireless communication by the control channel between the mobile phone and the nearest base station is released, and the routine 100 ends.
[0046]
The request for prohibiting handoff and canceling prohibition as described above is transmitted in an appropriate signal format and content.
[0047]
Further, as indicated by a dotted line in FIG. 1, after sending a request for prohibiting and releasing handoff processing in Step 103 and Step 106, prohibiting and prohibiting handoff processing on the mobile phone display in Step 106 and Step 107. Release can also be displayed.
[0048]
As described above, in this embodiment, the placement detection unit on the charging stand is provided on the mobile phone side, and the mobile phone is placed on the charging stand. Therefore, by sending a request for prohibiting handoff processing to the base station side, the base station side prohibits the occurrence of unnecessary traffic by prohibiting wireless communication via the control channel for handoff processing. As a result, the efficiency of line traffic can be increased, and the telephone company can set a cheaper call charge than usual.
[0049]
[Other embodiments]
In the above embodiment, the efficiency of line traffic can be improved by prohibiting handoff processing on the base station side during a period in which the mobile phone is placed on the charging stand and is substantially fixed. Thus, since the call charge can be set at a lower price than usual, the call charge is not so high even if the mobile phone is used for the second line for data communication such as Internet access.
[0050]
Next, another embodiment suitable for data communication of the mobile communication device according to the present invention will be described with reference to FIGS.
[0051]
The configuration of another embodiment of the present invention is shown in FIG. In FIG. 4, parts corresponding to those shown in FIG.
[0052]
In FIG. 4, the mobile phone 10 </ b> C includes a transmission / reception antenna 11, and includes various input keys including a transmitter 12, a receiver 13, and a dial key 14, and a liquid crystal display 15.
[0053]
The shared circuit 21 connected to the antenna 11 is connected to a transmission circuit 22 and a reception circuit 23 to exchange a high-frequency transmission signal and a high-frequency reception signal. The reception circuit 23 includes an AGC circuit 24.
[0054]
The transmission circuit 22 and the reception circuit 23 are also connected to the baseband processing circuit 25, and exchange of transmission signals and reception signals is performed.
[0055]
Further, the baseband processing circuit 25 is connected to the transmitter 12 and the receiver 13 through the audio amplifier circuits 26 and 27, respectively, and exchanges audio signals.
[0056]
Then, the transmission circuit 22, the reception circuit 23, and the baseband processing circuit 25 are connected to a system control circuit (microcomputer) 31, and control signals are exchanged, and the output voltage Vgc of the AGC circuit 24 is The electric field strength of the radio wave from the receivable base station is detected by an interrupt routine with a predetermined period supplied to the system control circuit 31.
[0057]
Various input keys including the dial key 14 are connected to the system control circuit 31 and a ROM 32 storing various programs including the handoff switching processing routine described above is connected.
[0058]
Further, the liquid crystal display 15 is connected via the drive circuit 33, and for example, the inputted telephone number is displayed.
[0059]
Furthermore, required DC power is supplied to each part from the power supply 39 which consists of a suitable secondary battery. The above-described configuration is the same as that shown in FIG.
[0060]
Further, in this embodiment, a charging stand placement detection unit 34 for detecting placement on the charging stand 40C as shown in FIG. 5 is provided, and a communication interface 35 such as RS232C is provided. Are respectively connected to the system control circuit 31.
[0061]
As shown in FIG. 5, the charging base 40C is provided with a charging circuit 41, and the mobile phone 10C is mounted on the charging base 40C in correspondence with the charging base mounting detection unit 34 as described above. And a communication interface 45 corresponding to the communication interface 35 of the mobile phone 10C. The communication interface 45 is connected to the communication interface 51 of the computer 50.
[0062]
When the mobile phone 10C as described above is placed on the charging stand 40C, the charging circuit 41 is connected to the power source 39, the secondary battery is charged, and the placement detection output unit 44 and the charging stand are mounted. The position detection unit 34 is mechanically or electrically coupled, and the detection signal of the charging stand mounting detection unit 34 is supplied to the system control circuit 31.
[0063]
Further, the communication interface 35 of the mobile phone 10C is connected to the communication interface 51 of the computer 50 via the communication interface 45 of the charging stand 40C, so that the usability when data communication is performed using the mobile phone 10C is improved.
[0064]
When the mobile phone 10C is removed from the charging stand 40C, the charging circuit 41 is disconnected from the power source 39, charging of the secondary battery is stopped, and the placement detection output unit 44 and the charging stand placement detection unit 34 are removed. And the detection signal of the charging stand mounting detector 34 disappears.
[0065]
In the system control circuit 31, handoff switching processing as described above is executed, and handoff prohibition or prohibition release is selected in accordance with attachment / detachment of the mobile phone 10C to / from the charging base 40C.
[0066]
As described above, in this embodiment, by providing the placement detection unit on the charging base on the mobile phone side, the mobile phone is placed on the charging base, and in a substantially fixed state, the base station side Since the handoff process is prohibited in the network, the generation of unnecessary traffic can be avoided and the efficiency of the line traffic can be improved, and the telephone company can set the call charge at a lower price than usual. Even if the mobile phone is used for the second line for data communication, the call charge is not so high as compared with the case of using the normal telephone line. Furthermore, by taking into account time-limited conditions such as midnight or early morning, it is possible to further reduce the charge.
[0067]
In this embodiment, the mobile phone is provided with a communication interface, and a corresponding communication interface is also provided on the charging stand so as to be connected to the communication interface of the computer. This improves the usability when data communication is performed using the mobile phone on the second line.
[0068]
Note that the computer side of the communication interface of the charging base is an infrared detection method, so that the computer and the charging base can be electrically disconnected from each other, and the convenience of data communication using a mobile phone is improved. Can be better.
[0069]
[Handoff switching process of other embodiment]
2 and 5 described above are premised on mounting on a charging stand, so that a mobile phone can be used as an in-vehicle accessory such as a so-called hands-free kit for use in an automobile. When power is supplied from a car battery after mounting, it cannot be applied as it is.
[0070]
Therefore, according to the present invention, functions for prohibiting and canceling handoff are assigned to appropriate input keys of the mobile phone, and handoff prohibition and prohibition are canceled according to the usage status of the mobile phone by the user's key operation. To do.
[0071]
For this reason, the hardware of the cellular phone has the same configuration as that of the prior art except that the charging stand mounting detection unit 34 is removed from the configuration as shown in FIG. However, the ROM 32 stores a handoff switching processing routine 200 as described below.
[0072]
The system control circuit 31 of this embodiment includes reception field strength detection means, base station selection means, selection control means and request transmission means, and input and display control means as functional means. These functional means are realized by microcomputer software.
[0073]
Next, a handoff switching process according to another embodiment of the present invention, which is suitable for using a mobile phone in an automobile, will be described with reference to FIG.
[0074]
When the handoff switching processing routine 200 as shown in FIG. 6 is started, in the first step 201, the operation of the input key is waited for by the user. It is determined whether or not the handoff key to which the function is assigned has been operated. If the operated input key is not a handoff key, the process proceeds to step 210 and other processing is executed.
[0075]
If it is determined in step 202 that a predetermined handoff key has been operated, the process proceeds to step 203 to determine whether or not the mobile phone itself is currently prohibited from handoff.
[0076]
If the mobile phone itself is not prohibited from handoff, that is, if handoff prohibition is being canceled, the process proceeds to step 204, and the handoff process on the mobile phone side is prohibited by stopping the aforementioned electric field strength detection routine.
[0077]
In the next step 205, a request for prohibiting handoff processing is transmitted to the base station, and in response to the prohibition request, handoff processing is prohibited by prohibiting location registration update of the requesting mobile phone. The
[0078]
In the next step 206, prohibition of handoff processing is displayed on the display of the mobile phone, and the routine 200 ends.
[0079]
On the other hand, in step 203, if the mobile phone itself is prohibited from handoff, the process moves to step 207, and the handoff process on the mobile phone side is canceled by starting the aforementioned electric field strength detection routine. .
[0080]
In the next step 208, a handoff process prohibition release request is transmitted to the base station, and in response to the prohibition release request, the base station side cancels prohibition of location registration update of the requesting mobile phone, thereby performing handoff processing. Will be lifted.
[0081]
In the next step 209, the prohibition cancellation of the handoff process is displayed on the display of the mobile phone, and the routine 200 ends.
[0082]
The request for prohibiting handoff and canceling prohibition as described above is transmitted in an appropriate signal format and content.
[0083]
As described above, in this embodiment, by assigning a function for prohibiting and releasing handoff to an appropriate input key of the mobile phone, an appropriate key for the user according to the usage status of the mobile phone is assigned. Based on the operation, the base station side prohibits and cancels handoff, so during the handoff prohibition period, it can avoid unnecessary traffic and increase the efficiency of line traffic. The telephone company can set a call charge at a lower price than usual.
[0084]
Further, in this embodiment, since the prohibition and prohibition of handoff processing are displayed on the display of the mobile phone, it is possible to prevent mistakes in the user's key operation.
[0085]
[Other embodiments]
In the above-described embodiments, the mobile phone has been described. However, the present invention can be similarly applied to other mobile communication terminals and systems.
[0086]
Moreover, although the above-mentioned embodiment demonstrated the case where a charging stand was used, respectively, a charging part is not necessarily required for a base.
[0087]
【The invention's effect】
As described above, according to the first aspect of the present invention, the generation of unnecessary traffic can be avoided and the efficiency of line traffic can be improved while the mobile communication device is fixed. Is possible.
[0088]
According to the second aspect of the present invention, the generation of unnecessary traffic is avoided and the efficiency of line traffic is improved while the mobile communication device is fixed.
[0089]
According to the third aspect of the present invention, the generation of unnecessary traffic is avoided and the efficiency of line traffic is improved based on the user's appropriate key operation when the mobile communication device is fixed. It is possible to prevent mistakes in the user's key operation.
[0090]
According to the invention of claim 4, when the mobile communication device is fixed on the pedestal, generation of unnecessary traffic is avoided, the efficiency of line traffic is improved, and the mobile communication device It is possible to automatically cope with a state where the can move.
[0091]
According to the invention of claim 5, the mobile communication device is mounted on the pedestal, and the mobile communication device is limited to a fixed state, so that unnecessary traffic is avoided and line traffic efficiency is improved. At the same time, it is possible to automatically cope with a state in which the mobile communication device is movable.
[0092]
According to the invention of claim 6, it is possible to improve the usability when performing data communication via the mobile communication device.
[Brief description of the drawings]
FIG. 1 is a flowchart for explaining handoff switching processing of an embodiment of a mobile communication device according to the present invention;
FIG. 2 is a block diagram showing a configuration of an embodiment of the present invention.
FIG. 3 is a block diagram for explaining an embodiment of the present invention.
FIG. 4 is a block diagram showing a configuration of another embodiment of the present invention.
FIG. 5 is a block diagram for explaining another embodiment of the present invention.
FIG. 6 is a flowchart for illustrating handoff switching processing according to another embodiment of the present invention;
FIG. 7 is a conceptual diagram for explaining the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10,10C ... Mobile phone, 11 ... Antenna, 12 ... Transmitter, 13 ... Receiver, 14 ... Dial key, 15 ... Liquid crystal display, 22 ... Transmitter circuit, 23 ... Receiver circuit, 24 ... AGC circuit, 25 ... Baseband Processing circuit 31 ... System control circuit (microcomputer) 32 ... ROM 33 ... Drive circuit 34 ... Charge table mounting detector 35 ... Communication interface 39 ... Power source 40, 40C ... Charge table 41 ... Charge Circuit 44. Placement output unit 45. Communication interface 50. Computer 51. Communication interface 100 and 200 Handoff switching processing routine

Claims (3)

An antenna, a transmission means, a reception means, a key input means, and a display means, and a reception field strength detection means and a plurality of base stations capable of predetermined wireless communication based on the detection output of the reception field strength detection means In a mobile communication device comprising a base station selection means for selecting the nearest base station,
Request sending means for sending a request for prohibiting and canceling the wireless communication to the nearest base station in response to a predetermined input corresponding to a fixed and moving state ;
Selection control means for prohibiting and canceling the nearest base station selection by the base station selection means in response to the predetermined input ;
Pedestal placement detection means for detecting placement and detachment on a predetermined pedestal;
With
The mobile communication apparatus according to claim 1, wherein the request sending means and the selection control means are responsive to a detection output of the pedestal mounting detection means . An antenna, a transmission means, a reception means, a key input means, and a display means, and a reception field strength detection means and a plurality of base stations capable of predetermined wireless communication based on the detection output of the reception field strength detection means In a mobile communication device comprising a base station selection means for selecting the nearest base station,
Pedestal placement detection means for detecting placement and detachment on a predetermined pedestal ;
A request sending means for sending a request for prohibition and prohibition release of the wireless communication to the nearest base station in response to the detection output of said pedestal mounting置検detecting means,
Selection control means for prohibiting and canceling the nearest base station selection by the base station selection means in response to the detection output of the pedestal mounting detection means;
Mobile communication device comprising: a. The mobile communication device according to claim 1 or 2,
Providing communication interface means;
Mobile communication device a second communication interface means corresponding to the communication interface means, characterized in that provided on the pedestal.

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