JP2006135925A - Mobile communication system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile communication system effectively dealing with even a mobile communication scheme in which an area where a radio wave transmitted from a radio base station to a terminal is sufficiently delivered is limited and a transmitting/receiving state of the terminal is changed by presence/absence of radio interference or the like. <P>SOLUTION: A call note that can be reproduced by operating a terminal. is recorded in a memory of a radio base station with sufficient recording capacity, so that a message from a transmission terminal and a call origination designated time of the message are stored in the memory and a call of the message stored in the memory is originated to an opposite party terminal at the designated time. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a mobile communication system capable of recording a call memo that communicates with a radio base station using a portable communication terminal and talking with the other party and listening to the call memo using the terminal after the call ends.

  A system for making a call with the other party, recording the contents, and confirming the contents later is provided with a call recording means such as a magnetic tape in the terminal so that the entire call contents can be recorded without any special operation by the terminal operator. There are a recording method and a method in which recording of a call content is started by a key operation of a terminal operator.

Further, in a mobile communication system that communicates with a wireless base station using a portable communication terminal and makes a call with a partner, an area where radio waves transmitted to the terminal by the wireless base station sufficiently reach is limited, Depending on the location of the terminal in the area, the transmission / reception state of the terminal changes depending on the distance difference between the radio base station and the terminal, battery consumption of the terminal, presence or absence of radio interference, and the like.
However, an electronic premises system having a call recording function is known from Japanese Patent Application Laid-Open No. 2004-228561. However, there is no electronic premises system provided with a memory for recording the call memo in a radio base station using a portable communication terminal.
JP-A-6-318980

However, in the former method of recording the content of a call with the other party, the recording means has a large capacity in order to record all the content of the call, and in order to incorporate it in the terminal, the storage capacity allocated to one call is a predetermined capacity. In that case, there is a problem that sufficient call contents cannot be recorded.
In addition, the latter method can use a recording means that requires less capacity than the former in that it only needs to record the necessary calls in order to perform key operations at the terminal operator's will, but it can still record for a long time. Is impossible.
In addition, mobile communication terminals may be in a hearing-impaired state due to radio wave interference or the like. In such a case, there is a demand for confirming the other party's call later.

  In view of the above circumstances, an object of the present invention is to provide a mobile communication system capable of listening to a call memo including a memory capable of recording a sufficient recording capacity as a call memo.

Therefore, in order to solve such a problem, the present invention records a call memo that communicates with a radio base station using a portable communication terminal and makes a call with the other party, and uses the terminal after the call is completed. A communication system capable of listening to electronic mail (hereinafter referred to as a message),
The wireless base station is provided with a memory for recording the call memo, the message from the transmission terminal and the call origination time of the message are stored in the memory, and the message stored in the memory is stored at the destination terminal at the designated time. A mobile communication system configured to make a call is proposed.

The memory is preferably shared with an electronic mail memory.
Further, it is preferable that the call memo is configured so that all calls are once recorded and stored by a storage signal from the terminal.
The call memo is preferably recorded by a call memo recording request signal from a terminal.
The call memo is preferably erased by a call memo erasure request signal from the terminal.

In the present invention, when communication with a wireless base station is started using a portable communication terminal and a call is started with the other party, the content of the call is recorded as a call memo in a memory provided in the wireless base station.
Since this call memo is recorded in the memory of the radio base station, the call memo can be left in a large-capacity memory as compared with the case where it is built in the terminal, and the entire call can be recorded.
Further, when the memory is shared with the e-mail memory, it is not necessary to provide a separate memory for the call memory, and it is possible to use it efficiently for the e-mail.
In addition, when the call memo is configured to record all calls once and save them by a stored signal from the terminal, all calls are recorded for each call, There is no record omission when it becomes.
Further, when the call memo is configured to be recorded by a call memo recording request signal from the terminal, an unnecessary call memo is not recorded, and it is not necessary to prepare a large-capacity memory.
Further, when the call memo is configured to be erased by a call memo erasure request signal from the terminal, the call memo after the call memo is played back is not stored in a recorded state indefinitely, and the memory is effectively used. Increase the capacity.

  According to the present invention, since a call memo that can be played back by operating the terminal is recorded in the memory of the radio base station having a sufficient recording capacity, the message from the transmitting terminal and the message are recorded in the memory. There is an advantage that the designated call time can be stored, and the message stored in the memory can be called to the partner terminal at the designated time.

  Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention unless otherwise specified, but are merely illustrative examples. Not too much.

  FIG. 1 is a schematic configuration diagram of a mobile communication system used in an embodiment of the present invention, FIG. 2 is an embodiment diagram showing an external configuration of a communication terminal used in the embodiment of the present invention, and FIG. FIG. 4 is a circuit block diagram of the radio base station, FIG. 5 is a diagram illustrating the operation procedure of the output level adjustment function of the terminal, and FIG. 6 is a diagram illustrating the procedure of the voice mail function. 7 is an explanatory diagram of the first half of the operation procedure of the call memo function, and FIG. 8 is an explanatory diagram of the second half of the operation procedure of the call memo function.

  In FIG. 1, a plurality of wireless base stations 20A, 20B, and 20C are wired to a communication carrier network 41 that is wired to each telephone terminal, and these wireless base stations are connected to a plurality of terminals 1A ′, 1A, 1B or the like can be wirelessly communicated, and is connected via a network 41 to a data management center 40 that stores and manages various data of the base station and the terminal.

  The base station 20 is provided with a memory 31A (31B) for voice mail (e-mail) and call memo, which will be described later, and a terminal 1A and a terminal 1A ′ having a distance from the base station 20 different from each other. A mechanism (not shown) is provided for measuring and adjusting the output level to a predetermined level.

  FIG. 2 is a diagram showing an external configuration of a communication terminal used in the embodiment of the present invention. In the figure, the main body 1 of the terminal has a thin and substantially rectangular shape, and a telescopic antenna 2 is erected at the upper left corner of the upper edge and is automatically closed to the left side surface, thereby automatically requesting the location registration of the terminal. A power switch 10 for transmitting radio waves is provided.

  On the front surface of the terminal 1, a speaker unit 3 is provided above, and a speaker 9 that rings a ringing tone is provided in the vicinity thereof. Underneath, a display for visually displaying various information including a telephone number of the other party by operating a numeric keypad A key operation input unit 5 including a call switch 5a for transmitting a call signal, an on-hook switch 5b, a switch 5c for designating a call destination in an extension, and a numeric keypad operation unit 6 therebelow. Furthermore, a number registration request key 7a for requesting telephone number registration and an external terminal / slave unit switching key 7b, as well as function keys 7 for realizing shortening, holding, and other various functions are arranged below that. Below that, a transmitter 8 is incorporated.

  FIG. 3 is a configuration diagram illustrating a circuit block of the communication terminal. The communication terminal 1 is provided with a CPU (Central Processing Element) 11 that controls various control operations on the terminal side. The CPU 11 includes the antenna 2, the speaker 3 as a receiver, and the transmitter. A wireless communication circuit 14 including a microphone 8 is connected, and performs a predetermined registration request / call / incoming / call operation while exchanging data with the CPU 11.

Further, the CPU 11 is provided with a memory 12, which temporarily stores a terminal output control signal, an output level state, a call memo storage number, and the like received from the radio base station 20, which will be described later, received via the communication circuit 14. To do.
The CPU 11 is connected to a terminal output level adjustment circuit 18 by the terminal output control signal, and the circuit 18 adjusts the output level to a predetermined range.

Further, the CPU 11 has the above-described key operation input unit 5, an input / output device 17 constituted by a numeric keypad operation unit 6, function keys, and the like, input information, terminal output level warning, etc. by key operation of the input / output device 17. Is connected to the display unit 4.
A ROM 13 connected to the CPU 11 stores a program for processing registration, transmission / reception, and other functions in a predetermined flow.

The RAM 15 connected to the CPU 11 stores a manufacturing number and the like in advance at the time of manufacturing.
The ringing tone generation circuit 16 is a circuit that receives a call via the communication circuit 14 and generates a ringing tone. The ringing tone generation circuit 16 rings the connected sound generator 9.

FIG. 4 is a circuit block diagram of the radio base station. The radio base station 20 is provided with a central processing unit (CPU) 21 that controls various control operations of the base station. A radio communication circuit 24 including an antenna 22 is connected to the CPU 21. Wireless communication is made with the terminal 1 while exchanging data between them.
The CPU 21 is connected to a telephone line interface unit 25 connected to the operator network 41 (FIG. 1), and communicates with a telephone terminal and other data management center 40.

The CPU 21 is connected to a data transmitting / receiving unit 26 for recording various data received from the telephone line interface unit 25 in the information data memory 28.
The data in the information data memory 28 is configured to be able to be searched and listened to from the terminal via the communication unit 24, the data transmission / reception unit 27, and the information data search circuit 27.
A ROM 23 connected to the CPU 21 stores a program for processing transmission / reception and other functions in a predetermined flow.

Further, a memory 31 is connected to the data transmitting / receiving unit 27, and the memory 31 records an e-mail message and a call memo of the communication terminal 1 received via the wireless communication circuit 24.
The terminal output level calculation circuit 30 connected to the information data memory 28 and the data transmission / reception unit 27 measures the output level of the location registration information received from the data transmission / reception unit 27, and sends the control signal via the data transmission / reception unit 27. Are transmitted to the terminal, and the output level state of the terminal is stored in the information data memory 28.

  The arithmetic circuit 30 controls the terminal output level so that Lmu ≧ Lt ≧ Lml and the terminal output level are between both reference values, assuming that the terminal output level Lt, the reference upper limit value Lmu, and the reference lower limit value Lml. When the level is below the reference lower limit value, an output up signal is sent. When the terminal output level exceeds the reference upper limit value, an output down signal is sent and adjusted, and the terminal output level does not exceed the reference lower limit value. Is configured to transmit an unadjustable signal or an output level lowering signal.

Next, an outline of the output level adjustment procedure of the terminal used in this embodiment will be described with reference to FIG.
When the power switch 10 (FIG. 1) of the communication terminal A is closed, a location registration request is transmitted (50), and the base station 20 receives the location registration request signal (51).
The terminal output level is measured by the terminal output level calculation circuit 30 of the base station 20, and when the output level is not within the predetermined range, a control signal is transmitted (52).

The terminal that has received the control signal performs output level adjustment (53) in the output level adjustment circuit 18, and transmits a location registration request signal.
After the exchange of the control signal and the location registration request signal within a predetermined time, if the terminal output level still does not rise within the reference value, the terminal output level calculation circuit 30 of the base station determines that adjustment is impossible, A terminal output adjustment impossible notification is transmitted (54).
The terminal that has received the notification of incapability displays a mark in the form of a battery on the display unit and flashes and flashes the mark (55).

When a call signal is transmitted from the terminal (56) and the base station 20 receives the call signal of the terminal (57), if the terminal output level cannot be adjusted due to the location registration request signal, the terminal output level cannot be adjusted. To make a call response (58).
The terminal receives the terminal output level non-adjustable signal, displays a battery mark on the display unit 4 together with an output level non-adjustable warning by voice, and flushes the mark (59).

When this terminal is ignored and the terminal transmits the telephone number of the other party (60), the base station 20 receives the telephone number (61) and transmits a calling signal to the other terminal (62).
Receiving this call signal (63), terminal B rings a bell if the terminal owner is not nearby, but sends a busy signal (64) if it is busy.

  FIG. 6 is an explanatory diagram of the operation procedure of the voice mail (electronic mail) function. In the figure, when the busy signal from terminal B is transmitted 15 times (65), the base station confirms it (66) and notifies terminal A of acceptance of voice mail (67). At this time, if the output level of the terminal A cannot be adjusted, the warning is given by voice and flashing of the display unit. For example, the voice tells "Your terminal's output drops and cannot be adjusted, but the other party doesn't, so you can accept voice mail."

A voice mail message and calling time are designated from the terminal (69). For example, after the function key 7d of the terminal 1 is pressed and a message is transmitted, the # key is used to perform a key input operation of (# 1413 #) as meaning of 1 pm on the 14th.
Upon receiving the message content and the calling time, the base station 20 stores and saves it in the memory 31 (70), and makes a call to the terminal B on the designated date and time (71).

  Upon receiving this call signal (72), terminal B transmits an off-hook signal (73), and when base station 20 receives the signal (74), it transmits a message (75) and terminal B receives the message. (76), an on-hook signal is transmitted (77), and when the base station 20 receives the on-hook signal (78), the base station 20 deletes the message content (79) and ends (80).

FIG. 7 is a first half operation procedure explanatory diagram illustrating the operation of the call memo function. In the figure, when the terminal A transmits the destination telephone number (60), the terminal B transmits the off-hook signal (81), and the call is started (84), the call memo is stored in the memory 31 of the base station 20. Recording begins (85).
When the call is finished (86) and the call memo key 7c of the terminal 1 is pressed, a save signal for requesting saving as a call memo is sent (87).
Upon receiving this stored signal, the base station 20 assigns a storage number to the call memo, notifies the terminal of the storage number, and stores the call memo (89).
When the terminal receives the storage number, it stores it in the memory 12 (90).
If there is no storage request from the terminal A or B, it is deleted appropriately.

FIG. 8 shows a call memo playback procedure which is an operation procedure in the latter half of the call memo function. In the figure, when the playback key 7e and the call key 5a are pressed while the call memo storage number is displayed on the display unit 4 of the terminal 1, the playback and storage numbers are transmitted together with the call (94). A memo playback request is made.
Receiving this reproduction request (95), the base station 20 searches the memory 31 by the storage number from the information data search circuit 29 and sends a call memo to the terminal (96).

When the playback and listening of the call memo is finished (98), the terminal presses the call memo erase signal, for example, presses # 000 # and the call memo key 7c. If a state that does not require a memo is checked (101), the contents of the call memo are erased and the process ends (103).
Even when the call memo erasure signal is not received from the terminal, it is erased appropriately taking into consideration the storage capacity of the memory 31 as in the case where the above-described storage number request is received.

Next, the flow of the present embodiment in the base station 20 will be described in detail with reference to FIGS.
9, when the power switch 10 (FIG. 2) of the terminal 1 is pressed, a terminal location registration request signal is transmitted. When the base station 20 receives the location registration request signal (151), the presence / absence of a call signal is determined. (102) If a call signal has been received and a reproduction key and a call memo storage number have been received (153), it is determined that a call memo reproduction request has been made, and the process proceeds to step C. If not, it is determined whether the terminal output level measurement is completed (154). If it is completed, the process proceeds to Step B.

If the terminal call signal is not received (152) and the terminal output level measurement is not completed (154), the terminal output level measurement (155) is performed.
If the terminal output level is within the normal range, the process returns to the standby state (150). If the terminal output level is not within the normal level, an output level adjustment command (157) is issued and the incoming terminal location registration request signal When the terminal output level is not within the normal range, it is determined whether or not the output level adjustment is complete, for example, whether or not a predetermined time has elapsed (160). If there is, the loop of steps 157, 158, 159, 160 is further followed, and if the output level adjustment is completed and the output level adjustment is impossible (161), an output adjustment impossible notification is sent to the terminal (162) and waits. Return to state (150).

Next, the flow of the base station when a terminal is called will be described. In FIG. 9, when the terminal output level measurement is completed (154), the process proceeds to Step B in FIG.
In FIG. 10, when the terminal output level cannot be adjusted, the above-described warning is sent to the terminal (164), and a warning instruction is given to the voice and the display unit.
When a call is made from the terminal and the destination telephone number is received (166), the base station 20 calls (167) the other terminal, and when receiving an off-hook signal (168), the contents of the call are recorded (169). .
When the call is finished and a storage signal is received from the terminal, the storage number is transmitted and the process returns to the standby state (150).
If neither the terminal A nor the stored signal is received from B, the process proceeds to step E in FIG.

In FIG. 10, when the base station 20 makes a call to the partner (167) and no off-hook signal is received from the partner terminal (168), the process proceeds to step D (105).
In FIG. 11, when the busy signal is received 15 times (172), if the output level of the terminal A cannot be adjusted (173), the terminal A is warned (174) and a message reception signal is transmitted (106).
Message reception is started (176), a message is received from the terminal, and message recording is completed (177).
When a message is transmitted to the partner terminal at the designated time of the terminal (178) and message communication is completed (179), the message content is deleted (180) and the process ends (181).

Next, the operation in the base station at the time of transmitting a call memo will be described using the flowchart of FIG.
In FIG. 9, when a call memo reproduction request and storage number are received together with the call signal of the terminal (153), the process proceeds to step C in FIG.
When the contents of the memo are transmitted (182) and the transmission of the memo is completed (183), it is determined whether a memo erasing signal is received from the terminal A (184). It is determined whether or not the terminal B has requested to save the call memo (185), and if it has been requested, it is determined whether or not a memo erasure signal has been received from the terminal B (186) and the memo erasure signal is received. Is received (189), the process ends (190).

On the other hand, it is conceivable that both the terminal A and the terminal B are left as they are because they forget to send the erasure signal or intend to reproduce again later.
Therefore, in such a case, the contents of the call memo are automatically deleted when a predetermined time, for example, 24 hours elapses.
That is, as shown in FIG. 12, when a memo erasure signal is not received from terminal A (184), after a predetermined time has elapsed (187), and when a memo erasure signal is not received from terminal B (188), The contents of the memo are deleted (189).

In the above embodiment, the busy signal of the other party is detected and the voice mail is accepted by the terminal. However, the present invention is not limited to this, and the terminal is operated by operating the voice message key 7d of the terminal. You may accept by request.
In addition, it is explained that the record of the call memo is to make all calls, save what was requested to be saved, and erase what is not requested, but at the time of the terminal call signal or at the start of incoming call, A recording operation may be performed by sending a call memo request signal.

  In this embodiment, the memory 31 in the radio base station is disclosed as the memory of the radio base station. However, the present invention is not limited to this, and an external memory wired to the radio base station may be used. In addition, it is a matter of course that the memory may be a wirelessly connected memory that is guaranteed not to cause radio wave interference.

As described above, according to this embodiment, since the call memo is recorded in the memory of the radio base station, it is possible to leave the call memo in a large-capacity memory as compared with the case where it is built in the terminal. Can be recorded.
In addition, the memory can be configured to be shared with the e-mail memory, and it is not necessary to provide a separate memory for the call memory. Therefore, the memory can be shared and used efficiently.

In addition, when the call memo is configured to record all calls once and save them by a stored signal from the terminal, the entire call is recorded for each call, so it is desired to record during the call. Even if it becomes, there is no record omission.
Further, when the call memo is configured to be recorded by a call memo recording request signal from the terminal, an unnecessary call memo is not recorded, and it is not necessary to prepare a large-capacity memory.
In addition, since the call memo is configured to be deleted after a call memo erasure request signal from the terminal or after a predetermined time, the call memo after the call memo is reproduced is not stored in a record state indefinitely, The memory can be effectively used to prevent an increase in capacity.

  According to the present invention, it is possible to effectively cope with a mobile communication system in which a radio base station has a limited area where radio waves transmitted to the terminal reach and the transmission / reception state of the terminal changes depending on the presence or absence of radio interference. .

It is a schematic block diagram of the mobile communication system used for the Example of this invention. It is one Example figure which shows the external appearance structure of the terminal for communication used for the Example of this invention. It is a circuit block block diagram of a communication terminal. It is a circuit block block diagram of a radio base station. It is operation | movement procedure explanatory drawing of the output level adjustment function of a terminal. It is operation | movement procedure explanatory drawing of a voice mail function. It is explanatory drawing of the operation | movement first half of a call memo function. It is explanatory drawing of the operation | movement latter half of a call memo function. It is a flowchart at the time of the terminal output level adjustment in a base station. It is a flowchart at the time of the terminal call in a base station. It is a flowchart at the time of the voice mail in a base station. It is a flowchart at the time of the telephone call memo transmission in a base station.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Terminal for communication 3 Earpiece 4 Display part 8 Transmission part 10 Power switch 11, 21 CPU
12, 31 Memory 13, 23 ROM
DESCRIPTION OF SYMBOLS 14, 24 Wireless communication circuit 17 Input / output device 18 Output level adjustment circuit 20 Wireless base station 25 Telephone line interface part 26, 27 Data transmission / reception part 28 Information data memory 29 Information data search circuit 30 Terminal output level arithmetic circuit 40 Data management center

Claims (1)

A communication system that uses a portable communication terminal to communicate with a radio base station, record a call memo for a call with a partner, and listen to the call memo or e-mail (hereinafter referred to as a message) using the terminal after the call ends. Because
The wireless base station is provided with a memory for recording the call memo, the message from the transmission terminal and the call origination time of the message are stored in the memory, and the message stored in the memory is stored at the destination terminal at the designated time. A mobile communication system configured to make a call.

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