JP3398091B2 - Mobile phone - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile phone capable of capturing channels of a plurality of bands for control.

[0002]

2. Description of the Related Art In recent years, as represented by a CDMA / AMPS mobile phone using an analog AMPS system of the 800 MHz band and a digital CDMA system of the 1900 MHz band, a plurality of devices such as a dual band system and a multi-mode system are available. Communication type mobile phones that can use frequency bands have become widespread.

In such a mobile phone, when a call cannot be made on one channel due to a weak electric field or the like, a call can be made on another channel.

[0004]

When a call fails due to a cause such as a weak electric field and the call is recalled, there are many possible combinations of the order of channels to be recalled. For example, a combination of repeatedly calling the digital channel, calling the analog channel a predetermined number of times, and calling the digital channel a predetermined number of times and then calling the analog channel is considered. To be When creating a program that recalls with these combinations, the program requires a lot of judgment processing such as which combination to recall, and how many times it has been recalled on the same channel. Become. If the processing becomes complicated, there is a problem that the reliability of the program becomes low.

In view of the above problems, it is an object of the present invention to provide a mobile phone having a simple structure and a highly reliable program, which can flexibly cope with various combinations of calling sequences. To do.

[0006]

In order to solve the above problems, the mobile phone of the present invention has a plurality of operating modes.
The mode that stores the flag of the 1 operation mode selected by the
Operation mode storing a flag storage unit, all modes of operation
And over de storage means, currently stored in the mode flag storage means
The operating mode indicated by the current mode flag from the storage means.
It comprises a generating means for generating a list in which the channel numbers are arranged in accordance with the operation mode, and a re-calling means for re-calling in the order of the channel numbers in the list.

Further, the generation means is provided with a list storage means for storing a list corresponding to the operation mode, and the list is obtained by adding the channel number of the currently captured channel to the head of the list stored in the list storage means. Is configured to generate. The operation mode storage means stores an emergency mode and a normal mode as operation modes, and the list storage means corresponds to the emergency mode with a list in which a plurality of different channel numbers including the captured channel number are arranged. A list in which the captured channel numbers are repeatedly arranged is stored as a list corresponding to the normal mode.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION A portable telephone according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the mobile phone of this embodiment. In the figure, the mobile phone 1 includes an antenna 2, a radio unit 4,
A modem unit 5 that performs modulation and demodulation between the wireless unit 4 and the CDMA processing unit 6, a CDMA processing unit 6 that performs communication control by a CDMA (code division multiple access) method, a voice sound that is input and output through the microphone 37 and the speaker 38. The audio processing unit 7 performs encoding / decoding processing and amplification, a display unit 10 such as a liquid crystal display, a dial key, an operation unit 11 including various function setting buttons, and a control unit 12.

The radio section 4 includes a transmitting section 41 for converting an intermediate frequency signal into a high frequency signal, a synthesizer 42, a receiving section 43 for converting a high frequency signal into an intermediate frequency signal, and an RSSI for detecting a received electric field strength during reception. It is composed of the detection unit 44. The synthesizer 42 generates a local oscillation frequency signal corresponding to the channel number designated by the controller 12 and supplies it to the transmitter 41 and the receiver 43. Thereby, the synthesizer 42 sets the transmission / reception frequency of the transmission unit 41 and the reception unit 43 to the frequency of the channel.

The control unit 12 includes a CPU 121, a mode storage unit 122, a list storage unit 123, a list holding unit 124,
The acquisition channel holding unit 125, the channel storage unit 126, and the state storage unit 127 are included. (CPU 121) The CPU 121 performs the following processing by reading and executing a program stored in a ROM (not shown). That is, the CPU 121 first captures the control channel when the power is turned on. The control channels are acquired by testing whether or not they can be acquired in the order of a list (scan list) in which channel numbers of channels that can be acquired are arranged. When the acquisition is successful, next, when the CPU 121 receives a call instruction from the user via the operation unit 11, the CPU 121 transmits a call request to the base station using the captured control channel. If the call fails due to a low electric field strength or the like, the CPU 12
1 generates a recall call list. This recall list is
This is a list in which channel numbers are arranged, and the arrangement of channel numbers differs depending on the operation mode. CPU121
Makes a recall call in the order of the channel numbers arranged in this recall list. (Each storage unit) The mode storage unit 122 holds a mode flag indicating which operation mode is currently set by the user when the CPU 121 calls again.
There are four operation modes: digital mode, auto mode, analog mode, and emergency mode.

The digital mode is an operation mode in which the mobile phone 4 recalls only the channels assigned for digital use. Specifically, when the digital mode is set, the CPU 121 makes a maximum of three recalls to the captured control channel. The analog mode refers to an operation mode in which the mobile phone 4 recalls only the control channels A and B, which are control channels allocated for analog.

The auto mode is an operation mode in which the mobile phone 4 recalls calls to both digital and analog control channels. Specifically, when set to the auto mode, the CPU 121 sets the operation mode in which the captured digital control channel is re-called twice in the same order, and the analog A channel and B channel are re-called once in the same order. Say.

The emergency mode is an operation mode temporarily set when a user issues an instruction to make a call to a telephone number of an emergency contact (for example, 110 number), and the mobile phone 4 is digitally operated. This is an operation mode in which a call is recalled until it is repeatedly connected to both control channels for analog and analog. The emergency mode is canceled when the call control for the telephone number of the emergency contact is completed.

FIG. 2 shows the correspondence between the value of the mode flag stored in the mode storage unit 122 and the operation mode. In the figure, the left column shows the value of the mode flag, and the right column shows the operation mode corresponding to each value in the left column. The value is represented by 3 bits. In the left column, "-" indicates that either 0 or 1 may be used. Only one bit is assigned to the emergency mode flag because the emergency mode is temporarily set during the setting of another one operation mode, and is returned to the previous operation mode at the time of cancellation.

The list storage unit 123 stores a list according to each mode. FIG. 3 is a diagram showing an example of a list stored in the list storage unit 123. 9A is a list corresponding to the digital mode, FIG. 9B is a list corresponding to the auto mode, FIG. 9C is a list corresponding to the analog mode, and FIG. 9D is corresponding to the emergency mode. It is a list. The list shown in FIGS.
21 is used to generate a list for recalling calls. "*" Shown in some or all of the columns of the list indicates that the column is blank and the channel number is not described. In the column of "*", the CPU 12
The channel number of the channel captured when the list is generated by 1 is stored.

The list holding unit 124 holds the list generated by the CPU 121 using the list in the list storage unit 123 when the list is generated. For example, if the channel number of the captured channel is 100 and the digital mode is set, the list generated by the CPU 121 is as shown in FIG. 4A, and if the auto mode is set. As shown in FIG. 7B, if the emergency mode is set, it becomes as shown in FIG. If the channel number of the captured channel is A and the analog mode is set, the list generated by the CPU 121 is as shown in FIG. List holder B
124 holds the list generated in this way.

The list holding unit 124 also holds a list for capturing generated by the CPU 121 during the capturing test. The acquisition channel holding unit 124 is the CPU 12
Holds the channel number of the control channel captured by 4. This is used to supplement the "*" column in the list when the CPU 121 creates the list.

The channel storage unit 126 stores the channel numbers of all control channels pre-assigned to the mobile phone system of the mobile phone 1. FIG. 5 is a diagram showing an example of stored contents of the channel storage unit 126. As shown in the figure, the channel storage unit 126 stores 50, 100, and 150 as digital channel numbers and A and B as analog channel numbers. It should be noted that the analog channel numbers are written in alphabets instead of numbers to distinguish them from digital channel numbers. These channel numbers 50, 100, 150,
A and B are the channel numbers of the control channels pre-assigned to the mobile phone system of the mobile phone 1.

The state storage unit 127 stores the processing contents of the CPU 121 in a capture test state (capture state), a standby state (standby state), a calling state (calling state), and a recalling state ( A state flag indicating which of the four states (recall state) it belongs to is held. (Description of Operation) The operation of the mobile phone 1 configured as described above will be described below.

FIG. 6 is a flow chart showing the procedure of the capture processing in the CPU 121. CPU in the figure
When the power is turned on (step 501), the 121 generates a list for capturing using the channel number stored in the channel storage unit 126 (step 502). CPU
A list holding unit 124 stores the generated list for capture.
To hold.

The list for capturing generated by the CPU 121 differs depending on the operation mode set at that time. That is, when the set operation mode is the digital mode, the CPU 121 determines the channel numbers 50 and 10
A list of 0, 150 is generated, a list of 50, 100, 150, A, B is generated in the auto mode, and a list of A, B is generated in the analog mode.

The CPU 121 acquires the channel number from the head of the list for capturing (steps 503, 50).
4). Specifically, the CPU 121 acquires the channel number of the position pointed to by the pointer from the capturing list. After acquisition C
The PU 121 increments the pointer. This causes the pointer to point to the next position in the list.

The CPU 121 tests whether the channel of the acquired channel number can be captured (step 50).
5). Specifically, the CPU 121 notifies the synthesizer 42 of the acquired channel number and sets the channel.
The CPU 121 determines whether the received signal after the channel setting is a meaningful signal such as the identification number of the base station, or whether the channel can be used according to the strength of the received electric field strength. .

At step 505, the CPU 121
If it is not determined that the channel is available, the acquisition fails (step 506), and steps 503 to 505 are repeated. CP like this
The U121 increments the pointer pointing to the acquisition list each time steps 503 to 505 are repeated, and performs the acquisition test in the order of the channel numbers arranged in the list.

At step 505, the CPU 121
When it is determined that the channel is available (the channel is captured), the standby state is entered. CPU
121 loses the radio wave of the channel captured during standby (corresponding to the lost in step 507), or when an error occurs (step 509), discards the capture list held in the list holding unit 124. Then, a new acquisition list is regenerated (step 509). Further, the CPU 121 returns the position pointed by the pointer to the beginning and then repeats the processing of steps 503 to 505.

When the CPU 121 receives a call-out instruction from the user via the operation unit 11 while waiting, the CPU 121 sends out a call-out request to the base station of the control channel being acquired. When the call request is transmitted, the call control sequence relating to the call may fail due to a weak electric field strength of the downlink control channel from the base station (call failure) (step 510).

When the call fails, the CPU 121 sets the status flag of the status storage unit 127 to the recalling status, generates a list for recalling, and returns to step 503 (step 511). The recalling list is generated as follows. Specifically, the CPU 121 first reads the value of the mode flag in the mode storage unit 122. CPU12
1 reads out the list corresponding to the operation mode indicated by the value of the mode flag from the list storage unit 123. Further CPU1
21 reads the channel number held in the captured channel holding unit 125 and stores it in the "*" part of the above list. The CPU 121 stores the generated list in the list holding unit 124 and changes the position pointed by the pointer so that the pointer points to the head of the list.

The CPU 121 returns to step 503 after generating the recalling list in this way. CPU1
The processing at the time of re-calling by No. 21 is shown below. CPU121
Acquires the channel number of the position pointed to by the pointer from the recalling list held in the list holding unit, and increments the pointer so that the pointer points to the next channel number after acquisition (step 503).

The CPU 121 refers to the status flag of the status storage unit 127. As a result of the reference, the status flag indicates the recalled status, so the CPU 121 notifies the synthesizer 42 of the acquired channel number, sets the channel, and sends a call request. If this call is successful, the CPU 12
1 returns the status flag stored in the status storage unit 127 from the recalling status to the waiting status after the communication related to the call is completed.

If the call is unsuccessful, the CPU 121 proceeds to step 510, skips the process for generating the re-calling list in step 511, and returns to step 503. This processing is skipped here because the recalling list has already been generated. CPU121
Determines whether or not the recalling list has been generated, depending on whether or not the status flag indicates the recalling state. That is, if the status flag indicates the recalling state, the CPU 121 determines that the recalling list has been generated and skips step 511. If it does not indicate the recalling state, the recalling list is generated. If not, the process of step 511 is executed.

When the CPU 121 skips step 511 and returns to step 503, it again acquires the channel number of the position pointed to by the pointer from the recalling list, increments the pointer, and sets the channel of the channel number in the synthesizer 42. Then, the call request is sent. With the above-described configuration, the mobile phone of the present invention has a CPU if the call fails due to a weak electric field or the like.
121 generates a recalling list from the list according to the mode from the list storage unit 123 and the channel number held in the acquisition channel holding unit 125, and stores it in the list holding unit 124. Since the operation is simply to supplement the channel number in the "*" portion of the list, the CPU 121 can easily generate the recalling list.

When the status flag indicates the recalling status, the CPU 121 notifies the synthesizer 42 of the channel number at the position indicated by the pointer from the recalling list, sets the channel, and sends a call request. Thus C
Since the PU 121 only needs to call back to the channel number indicated by the pointer, it does not need to perform a process of determining which operation mode to call again, how many times to call to the same channel, etc. You can make a call.

In this way, since it is possible to easily implement the recalling calls in various orders, it is easy to add a new recalling mode to this mobile phone. In this case, it suffices to add the mode flag of the mode storage unit 122 and add a new list to the list storage unit 123. Even if the recalling mode is added in this way, the mode storage unit 122 and the list storage unit 123
Since it is not necessary to change the configuration of other programs simply by adding to the above, the reliability of the programs can be maintained.

[0034]

The mobile phone of the present invention has a plurality of operating modes.
The flag of the 1 operation mode selected by the user from the
Mode flag storage means to store and all operation modes stored
Operation mode storage means and mode flag storage means.
Stores the operating mode indicated by the currently stored mode flag
Reading from the means comprises a generating means for generating a list having an array of channel numbers in accordance with the operation mode, and a recalling means for recalling the order of channel numbers of said list.

According to this configuration, the mobile phone re-calls in the order of the list according to the operation mode. Therefore, at the time of re-calling, it is determined whether the call is re-called in the operation mode, how many times the call is re-issued, or the like. Since it does not require, the structure of the program is simple. The simpler it is, the less program mistakes there are, so the reliability of the program can be maintained.

Further, the generating means is provided with a list storing means for storing a list corresponding to the operation mode, and the list is obtained by adding the channel number of the currently captured channel to the head of the list stored in the list storing means. Is configured to generate.

The operation mode storage means stores an emergency mode and a normal mode as operation modes, and the list storage means urgently stores a list in which a plurality of different channel numbers including the captured channel number are arranged. As the list corresponding to the mode, the list in which the acquired channel numbers are repeatedly arranged is configured to be stored as the list corresponding to the normal mode.

As described above, the mobile phone of the present invention is capable of handling re-calling in a plurality of modes. By associating the emergency mode with a list in which different channel numbers are arranged, the present mobile phone makes a re-call to a different channel in an emergency, so that the probability of failing to make a call becomes lower than in normal times. This is useful when the probability of successful call origination is high, such as in an emergency.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a mobile phone of the present embodiment.

FIG. 2 is a diagram showing a correspondence between a value of a mode flag stored in a mode storage unit 122 and an operation mode.

FIG. 3 is a diagram showing an example of a list stored in a list storage unit 123.

FIG. 4A shows a list for capturing when the digital mode is set. (B) shows a list for capturing when the automatic mode is set. (C) shows a list for capturing when the analog mode is set. (D) shows a list for capture when the emergency mode is set.

5 is a diagram showing an example of stored contents of a channel storage unit 126. FIG.

FIG. 6 is a flowchart showing a procedure of capture processing in the CPU 121.

[Explanation of symbols]

1 mobile phone 2 antenna 4 radio section 5 Modem section 6 CDMA processing unit 7 Audio processing unit 8 microphone 9 speakers 10 Display 11 Operation part 12 Control unit 121 CPU 122 mode storage unit 123 list storage 124 List holder 125 capture channel holding unit 126 channel storage 127 State storage

Continuation of the front page (56) Reference JP-A-8-182038 (JP, A) JP-A-9-224281 (JP, A) JP-A-4-242353 (JP, A) JP-A-6-188830 (JP , A) JP-A-8-168070 (JP, A) JP-A-10-42032 (JP, A) JP-A-9-507986 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB) Name) H04B 7/24-7/26 H04Q 7/00-7/38

Claims (3)

(57) [Claims] 1. A user selects from a plurality of operation modes.
Mode flag memorizer that memorizes the flag of 1 operation mode
Stage, an operation mode storage means for storing all operation modes , and a mode flag currently stored in the mode flag storage means.
The operation mode indicated by the group is read from the operation mode storage means.
And a re-calling means for re-calling in order of the channel numbers in the list, and a re-calling means for generating a list in which the channel numbers are arranged according to the operation mode. Wherein said generating means comprises a list storage means for storing a list corresponding to the operation mode, the head of the list stored the channel number of the channel currently captured list SL <br/>憶means 2. The mobile phone according to claim 1, wherein the list is generated by adding the list to. 3. The operation mode storage means stores an emergency mode and a normal mode as operation modes, and the list storage means stores a list in which a plurality of different channel numbers including the captured channel number are arranged. 3. The mobile phone according to claim 2, wherein a list in which captured channel numbers are repeatedly arranged is stored as a list corresponding to the emergency mode as a list corresponding to the normal mode.