JP2531406B2 - 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. More specifically, it relates to a mobile phone capable of registering a plurality of phone numbers.

[0002]

2. Description of the Related Art A mobile phone is a form of a mobile phone together with a car phone and has been put to practical use as a cellular phone system. The mobile phone wirelessly communicates with a telephone station (radio base station).

In the cellular telephone system, 1 in the same area
Services are provided by one or two service companies. They are called A system and B system, and they are organically combined with other wireless telephone systems and wired telephone systems, respectively. In this case, the A system and the B system use different frequency channels. For example, the A system is assigned 1ch to 333ch, and the B system is assigned 334ch to 666ch.

As described above, since a finite number of radio frequency channels used for communication are assigned, usable frequencies are limited within the assigned range. Therefore, in the radio telephone system, the frequencies are reused to expand the usable frequencies. However, there is still a limit, and this is one of the reasons why the mobile phone usage fee is higher than that of a wired phone.

Telephone number (MIN: Mobile Ide)
The authentication number is issued for each system (called a home system) registered as a subscriber, and a number (SID: System) for identifying the system.
It is registered in the telephone together with the Identification. Since the call message of the control channel transmitted from the base includes the SID, it can be determined whether or not it is a home system by comparing with the SID stored in the telephone.

[0006] Since mobile telephones can communicate wirelessly,
You can carry and move around within the service area. Therefore, it may be possible to use the mobile phone by moving from the area of the system in which the subscriber is registered (for example, Los Angeles) to the area of another system in which the subscriber is not registered (for example, New York). In this case, a roaming service for using a wireless telephone system that is not registered as a subscriber is provided, and by using this, it is possible to make a call even in an area where the system is not registered as a subscriber. However, if you use the roaming service, the usage fee will be collected separately from the normal call charges. If the roaming service is used more frequently and the roaming fee becomes large, it may be cheaper to register the subscriber separately even in areas where the subscriber is not registered, compared to the roaming fee. To do. For this reason, a mobile phone can register a plurality of phone numbers (MIN), and SID,
Along with the system information for identifying the A or B system, NAM (N
The number is stored in the "umber Assignment Module".

[0007] However, it is troublesome to set a telephone number every time the user moves to another area, and a method of receiving the control channels of the A system and the B system and determining the NAM of the corresponding system has already been proposed. . In this case, if there is no corresponding NAM, roaming is performed by the first set NAM.

In this method, if you are in the home system,
Since the corresponding home system telephone number is always set, there is an advantage that the home system telephone number can always be used when making a call.

However, in the case of an incoming call, there is a problem that only one set telephone number can be received. For example, a third party uses a mobile phone in which the telephone numbers of five cities, New York (A system), Chicago (A system), Los Angeles (A system), San Francisco (B system), and New Mexico (B system) are registered. Consider the case of calling someone who has one. For example, if you are in the home system of Los Angeles, you can call with a phone number that is subscriber-registered with the A system of Los Angeles, but not with any other phone number. Therefore, in the above example, if it is known that the user is in any one of the five cities, the call can be made using the telephone number registered for the subscriber in that city. If you do not know in which city the person who has the above-mentioned mobile phone, or if you are in a home system other than Houston, for example, a third party,
Unless one knows which telephone number the mobile phone is set to, it is not known which telephone number can be used for calling. Actually, there is a problem that it is necessary to sequentially call all registered telephone numbers.

[0010]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. If only one telephone number in the same system is used, the telephone number set in that system will be used. The purpose of the present invention is to provide a mobile phone that can receive incoming calls.

[0011]

According to the present invention, in a mobile telephone, a telephone number registering means capable of registering a plurality of telephone numbers, a system setting means for setting one system in an initial state, and a receiving in a standby state. It is characterized in that it has a comparison means for sequentially comparing the established telephone number with a plurality of telephone numbers in the same system registered in the telephone number registration means.

[0012]

According to the present invention, either the system A or the system B is set in the initial state, and the received telephone number and a plurality of registered telephones in the same system are set in the standby state. By sequentially comparing the numbers with each other, an incoming call can be made if there is a matching telephone number.
For example, if there are two systems, system A and system B, the calling party may use one of each system.
By dialing one telephone number, it is possible to communicate regardless of which telephone number is set for the receiving side.

[0013]

1 is a block diagram showing a schematic configuration of an embodiment of a mobile phone of the present invention. In the figure, 1 is an operation unit,
2 is a display unit, 3 is a ROM, 4 is a RAM, 5 is a CPU, 6
Is an ASIC, 7 is a baseband controller, 8 is a CODE
C, 9 are high frequency parts, 10 are antennas, 11 are audio parts, 1
Reference numeral 2 is a CODEC, 13 is a microphone, and 14 is a speaker. The operation unit 1 is composed of a numeric keypad and various function keys for inputting a destination telephone number and giving an operation instruction to the mobile phone. The display unit 2 is composed of an LCD (liquid crystal display device) that displays the operating state of the mobile phone and the telephone number of the other party input by the operation unit 1. ROM3
Stores a control program for operating the mobile phone and fixed data. The RAM 4 can store data that can be input by the user, such as a speed dial. MIN, SI
D, system information is a specific area of RAM4, or
An EEPROM or the like is used and stored in it.

The CPU 5 executes the program in the ROM 3 and is in charge of overall control. The ASIC 6 exchanges data as a clock control and an interface with the CPU. The baseband control unit 7 is configured as a DSP and is in charge of extraction and analysis of control signals, processing of transmission and reception data, or majority processing of word A and word B information and interrupt processing to the CPU according to the result. . C
The ODEC 8 performs A / D conversion and D / A conversion of the internal digital signal and the high frequency analog signal. The high frequency unit 9 modulates voice data or a digital control signal and outputs it from the antenna 13 as a radio wave, and a transmitting unit TX that demodulates the received radio wave to obtain a baseband control unit as a voice signal or a digital control signal. It has a receiving unit RX for sending data to 7. Further, a duplexer for sharing the antenna 10 for two different frequencies for transmission and reception is provided. The voice unit 11 is configured as a DSP and performs encoding / decoding of digitized voice data. CODE
The C12 is in charge of A / D conversion and D / A conversion of a low frequency signal which is a voice signal and voice data. The microphone 13 and the speaker 14 are equivalent to a handset.

FIG. 6 shows an example of an EE which constitutes a NAM.
It is the figure which showed the memory state of PROM. As described above, the NAM is composed of the SID, MIN and system information. In this embodiment, N with registration numbers 1-5
Five sets of AM1 to NAM5 are registered.

The SID is a unique number assigned to each company or region that provides wireless telephone services. In this example, SID1 to SID3 are the A system and S.
ID4 and SID5 are the B system. Even when one system is composed of a plurality of base stations, the call message of the control channel from the base station includes the same SID. Therefore, the mobile phone has the SIDs of NAM1 to NAM5 stored in the EEPROM. By comparing with, it is possible to determine whether the service is HOME (system with subscriber registration) or ROAM (system without subscriber registration). Further, by referring to the system information, it can be determined whether the NAM priority system is the A system or the B system.

MIN consists of MIN1 and MIN2,
It corresponds to a telephone number, and is composed of MIN2 in which the upper three digits of the telephone number are converted into 10 bits and MIN1 in which the lower seven digits of the telephone number are converted into 24 bits. MIN
It can be said that 2 corresponds to the area code and MIN1 corresponds to the local number. The control channel call message transmitted from the base station includes the SID and MIN.
Since the mobile phone includes the SID and MIN included in the received call message of the control channel,
And S of NAM1 to NAM5 stored in the EEPROM
By comparing the ID and MIN, it is possible to determine the home system and recognize the call to the own device. In FIG. 5, the serial number of the mobile phone is stored in addition to the five NAMs.

Regarding the call modes for outgoing and incoming calls,
There are four modes available. Home only (H
ome Only), Standard (Standard)
d), System A Only (System A On)
ly) or System B only (System B)
Only).

Home Only
Can only make calls within the home system,
Roaming is not allowed. Standard (S
(tandard) is a mode in which a call can be made outside the home system and roaming is permitted. System A Only (System A Only) or System B Only (System B Only)
Is a mode in which roaming is allowed only in the A system or the B system.

2 to 5 are flowcharts for explaining an example of the receiving operation in the portable telephone of the embodiment of FIG. 1 having the EEPROM storing the telephone number explained in FIG.

FIG. 2 is a flow of initial setting. This flow is executed when the power of the mobile phone is turned on or when the call is ended. This flow is a flow chart of automatically setting the NAM to be used from the five sets of NAM registered in the mobile phone A and shifting to the waiting task of FIG.

S1 is a NAM setting routine. NAM
The setting of is selected depending on the call mode. FIG. 3 shows N
It is an AM setting routine. The setting corresponding to the mode selected in S31 is selected. That is, if the system A only mode is selected, it is checked in S32 whether or not there is a NAM whose priority system is A.
As described with reference to FIG. 6, the NAM includes system information together with SID and MIN.
If there is a system NAM, the process proceeds from S32 to S33, and the priority system sets the NAM having the smallest registration number among the NAMs of A. If there is no NAM whose priority system is A, the process proceeds to S36 and the NAM with the smaller registration number is set. If the system B only mode is selected, in S34, it is checked whether or not there is a NAM whose priority system is B. If there is a B system NAM,
After shifting from S34 to S35, the priority system is NA of B.
Set to NAM with the smallest registration number in M. If there is no BAM of the priority system, the process proceeds to S36 and the NAM having the smaller registration number is set. If the standard mode or the home only mode is selected, the process proceeds to S36 and the NAM with the smallest registration number is set. When the NAM setting is completed, the NAM setting routine is ended and the process proceeds from S37 to S2 in FIG.

In S2 to S5, the system is initialized. The selected mode is System A Only
If it is the mode, the system proceeds to S3 and the A system is selected. If it is the system B only mode, the system proceeds to S4 and the B system is selected. If Standard Mode or Home Only Mode is selected,
In step S5, the NAM priority system set in step S36 of the NAM setting routine is selected. The priority system is a wireless telephone system of a service company registered as a subscriber when there are two service companies in the same area. In this example, since NAM1 is the A system, the A system is selected if the standard mode or the home-only mode is selected.

First, the case where the standard mode is selected will be described. After proceeding to S6 and setting the counter to 2, in S7, the selected A system sequentially receives a plurality of control channels from the base, and the signal strength of 2 is increased.
A channel is selected and an update timer is set in S8 in accordance with the strongest control channel. The update timer is
In this example, it is set to 3 seconds. Then S9, S10
Receive a message while looping. If the message cannot be received and the time-out occurs, the process proceeds from S9 to S11, and in S12, the control channel returns to S8 in accordance with the second strongest control channel, the update timer is set, and S9 and S10 are looped. , Receive the message. If the time-out occurs even if the control channel is changed, the process proceeds from S9, S11 to S17, and since it is the standard mode, the process proceeds from S17 to S21, and the priority system is replaced with the B system, which is the other system, and S22. Then, in the NAM that has the replaced B system as the priority system, the NA with the smallest registration number
Set to M and return to S7 to receive the control channel message. In this way, the systems are switched alternately and the control channel is set to the strongest channel and 2
Waiting for a message while tuning to the second strongest channel.

In S10, when a message from the base station can be received, S13 to S15 are looped to sequentially set the SID contained in the received message and the SID among NAM1 to NAM5 stored in the EEPROM. In comparison, if the same SID is present, this mobile phone is registered as a subscriber in this wireless telephone system, and the routine proceeds to the standby task routine in S24. If there is no matching SID, S14 to S16, S
If the value of the counter is not 0, the counter is decremented by 1, the process proceeds to S21, the priority system is replaced, the process proceeds to S21, and the priority system is replaced with the B system of the other system. , S22, the NAM having the smaller registration number is set among the NAMs having the replaced B system as the priority system, and the process returns to S7 to repeat the reception of the control channel message.

Even if the priority system is replaced with the B system, if there is no matching SID, it means that the subscriber is not registered in the wireless telephone system.
The process proceeds from S18 to S19, and since the counter value is not 0, the counter is decremented by 1 to 0 in S20, and S2 is set.
1. Go to S22 and replace the priority system. That is, the system A is returned to and the same procedure is performed again. If there is still no matching SID, the process proceeds from S16, S18, S19 to S23, executes the NAM setting routine of FIG. 3, and shifts to the standby task routine in S24.

In this way, the SID included in the control channel message and the NAM1 to NA of the EEPROM are stored.
NAM to apply by comparing M5 SID
And that priority system is set, in other words, it is possible to set a telephone number and set it in a standby state to wait for an outgoing call and an incoming call.

The above is a description of the standard mode. In the system A only mode or the system B only mode, the process returns from S17 to S7, so only the relevant system is processed and the system is not replaced. When the message from the base is received and there is no matching SID, the process proceeds to the NAM setting routine from S14, S16, S18 to S23. Therefore,
Since the NAM having the smallest registration number is set among the NAMs of the respective systems, NAM1 is set in the system A only mode and NAM4 is set in the system B only mode.

In the home-only mode, if there is no matching SID, the process proceeds from S16 to S21.
It is impossible to set the home system NAM by repeating the replacement of the priority system. Therefore, it is not possible to shift to the waiting task, and neither incoming nor outgoing call can be made.

As for the incoming call, as shown in FIG. 7, the same data as the word A information and the word B information are alternately and repeatedly transmitted from the base station as the telephone number. Phone number M
When the last digit of IN1 is odd, it is transmitted as word A information, and when the last digit of telephone number MIN1 is even, it is transmitted as word B information. Therefore, when the last digit of the telephone number registered in the mobile phone is an odd number, only the word A information needs to be taken, and when it is even, only the word B information needs to be taken. If there is only one registered telephone number, it is sufficient to prepare a waiting task for either word A or word B, depending on the telephone number. When multiple phone numbers are registered in the mobile phone, if all the phone numbers are odd or even, one standby task may be prepared in the same way, but such a case is rare. It can be said that there is.

Therefore, the standby task in FIG. 4 needs to process both the standby task for word A and the standby task for word B. FIG. 4 is an example of a flowchart of the waiting task. When a message is received in S41,
In S42 and S43, the processing of the incoming call routine for word A and the incoming call routine for word B is performed. In the figure,
The incoming call routine for word A and the incoming call routine for word B are shown in parallel. Of course, it is also possible to prepare two routines, sequentially process one message at a time, and move to the next processing according to the routine in which an incoming call to the own device is detected first, or by using the same routine. It is also possible to obtain the same result as the above method by preparing variables used in this routine for word A and word B respectively and resetting the variables before calling the routine. In any case, the flowchart of FIG. 4 does not show that all the incoming call routines operate when one message is received. actually,
After processing a plurality of messages, it is possible to recognize that the message is addressed to itself. In the incoming call routine for word A or the incoming call routine for word B, if there is an incoming call request, the process proceeds from S44 to S45, the incoming call operation is performed, and after the call ends, the process returns to the initial setting routine. If the message is another standby process, the process is performed in S46 and the process returns to the standby state.

FIG. 5 is a flow chart of an embodiment of the incoming call routine. Although this flow is described as an incoming call routine for word A, the incoming call routine for word B may be considered to be the same.

In the flow chart of FIG.
The case of the only mode will be described. Even in the home only mode, if the home system NAM is not set, the incoming call routine is not executed. The word A information is received five times, majority processing is performed, and the incoming call routine for word A is executed. In this case, as described in FIG. 2, for example, the NAM 3 is the home system N.
It is assumed that it is set as AM. If the message from the base is not the calling message in S51, S45
Return to FIG. If it is a calling message, S52
Go to step S53 because it is the home-only mode.
Then, it is reset to the NAM of the home system, and in S55, the SID of the word A information is compared with the SID set to the mobile phone to determine whether or not it is within the home area of NAM3. In this case, since it is in the home area, S6
Go to 0. If the received telephone number is a call using only MIN1, that is, a call using only a local number, the process proceeds to S61, and MIN1 of the received telephone number is compared with MIN1 of the set NAM. If they match,
The process proceeds to S62 to make an incoming call request. In S60, if the received telephone number is a call by MIN2 and MIN1, that is, a call by the area code and the local area code, the process proceeds to S56, and the received telephone numbers MIN2, M
IN1 is compared with MIN2 and MIN1 of the set NAM, and if they match, the process proceeds to S62 and an incoming call request is made.

In S61 or S56, the MIN1 of the NAM set with the received telephone number MIN1 or the NA set with the received telephone numbers MIN2 and MIN1.
When MIN2 and MIN1 of M do not match, S57
And the home-only mode, so S6
Proceed to step 3 to check whether there is another NAM having the same SID as the received NAM. If not, S64
4 to return to the NAM at the time of initial setting and return to the standby task in FIG. 4, but if there is another NAM, move to S59, set that NAM, and return to S55 to perform the same operation. .

The standard mode, system A only mode or system B only mode will be described. Similarly, the word A information is received five times, majority processing is performed, and the incoming call routine for word A is executed. Also in this case, as described with reference to FIG. 2, for example, it is assumed that the NAM having the A system as the priority system is set as the home system NAM. S52
Then, since it is not the home-only mode, the process proceeds to S54, and the NAM having a small registration number with the system A as the priority system, in this case NAM1, is set. Next, S5
In step 5, the SID of the word A information is compared with the SID set in the mobile phone to determine whether or not it is in the home area of the current NAM. If in the home area, S
Proceed to 60. If the received telephone number is a call using only MIN1, that is, a call using only a local number, the process proceeds to S61, and MIN1 of the received telephone number is compared with MIN1 of the set NAM. If they match, the process proceeds to S62 to make an incoming call request. In this case, the call can be made on the home system.

If it is not within the home area of NAM1 in S55, or the telephone number received in S60 is M
If it is a call by IN2 and MIN1, that is, if it is a call by the area code and the local code, the process proceeds to S56, and the MIN2, MIN1 of the received telephone number is compared with the MIN2, MIN1 of the set NAM, If they match, the process proceeds to S62 to make an incoming call request. If it is not within the current NAM home area, roaming is possible.

In S61 or S56, the MIN1 of the NAM set with the received telephone number MIN1 or the NA set with the received telephone numbers MIN2 and MIN1.
When MIN2 and MIN1 of M do not match, S57
Since it is not home only mode, S5
Proceed to No. 8 and another NAM with the A system as the priority system
Find out if there is. If not, the process proceeds to S64 to return to the NAM at the time of initialization and returns to the standby task of FIG. 4, but if there is another NAM, the process proceeds to S59 and the N
AM, in this example, NAM2 is set, and the process returns to S55 to perform the same operation.

[0038]

[0039]

As is apparent from the above description, according to the present invention, any telephone number of the same system can be called, so that the chance of receiving a call is reduced. Also, in standard mode,
Since it is possible to receive an incoming call by calling both the A system and B system phone numbers once each time, when a third party calls the mobile phone of the present invention, regardless of the phone number set on the mobile phone, a maximum of two times is possible. There is an effect that it can be called by the call operation of.

[Brief description of drawings]

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

FIG. 2 ~

5 is a flowchart for explaining an example of a receiving operation in the mobile phone of the embodiment of FIG.

FIG. 6 is an explanatory diagram of telephone numbers stored in an EEPROM.

FIG. 7 is an explanatory diagram of telephone number data from the base.

[Explanation of symbols]

 1 Operation part 2 Display part 3 ROM 4 RAM 5 CPU 6 ASIC 7 Baseband control part 8 CODEC 9 High frequency part 10 Antenna 11 Audio part 12 CODEC 13 Microphone 14 Speaker

Claims (1)

(57) [Claims] 1. A telephone number registration means capable of registering a plurality of telephone numbers, a system setting means for setting one system in an initial state, and a telephone number received in a standby state to the telephone number registration means. A mobile phone having comparison means for sequentially comparing a plurality of telephone numbers in the same system.