JP3743965B2 - Communication system, communication terminal, and communication history recording method - Google Patents

Description

[0001]
[Industrial application fields]
The present inventionCommunication system in which wireless communication terminal such as PHS terminal can communicate voice and data with other communication terminals, communication terminal used in the communication system, and communication history recording methodAbout.
[0002]
[Prior art]
In recent years, as a terminal in a wireless communication system, a wireless communication portable information terminal (for example, a mobile phone, a PHS terminal: Personal) that is carried by a user and communicates voice and data with other terminals including a general home phone. Handy Phone System terminals, PDAs (Personal Digital Assistants, etc.) are known. These wireless communication personal digital assistants are driven by a secondary battery so that they can be used while being carried, and can store various data such as phone numbers of destinations, address books, schedules, text and voice memos, etc. It has become. This wireless communication portable information terminal communicates directly with other terminals or through a wireless base station disposed at a predetermined interval in a communication network laid in a wide area to a public line as a communication network. After being connected, it is possible to communicate with other terminals connected to the communication network by wireless communication via the wireless base station. The wireless base station is a repeater that exchanges information with a wireless communication portable information terminal by wireless communication and establishes a communication path between the wireless communication portable information terminal and a communication network.
[0003]
[Problems to be solved by the invention]
By the way, in the conventional wireless communication portable information terminal described above, a redial function for making a call again or an incoming call immediately before can be easily performed by simply pressing a button key (redial button) to a callee that has just made a call. Some senders have a recall function for making a call with the same easy operation as redialing. However, in the conventional wireless communication portable information terminal, the redial function is realized by storing the call destination telephone number every time a call is made, and the recall function is similarly received each time a call is received. Since this is realized by storing the incoming caller telephone number, there are the following problems.
(B) Since only the destination telephone number is stored, there is a problem that detailed information such as when and where the call is made or who the other party is cannot be obtained.
(B) Since detailed information cannot be obtained, there is a problem that when trying to use the redial function, it is not known whether or not it is possible to make a call to the same desired party.
(C) As a result, there has been a problem that the telephone number has to be input again or the destination is selected from the address book, and the redial function cannot be used effectively.
(D) Also, the recall function has a problem that it cannot be used effectively because detailed information cannot be obtained in the same manner as the redial function.
[0004]
  Therefore, the present invention can obtain detailed information on outgoing and incoming calls,These detailed informationRedialTimerecallSometimesIt is an object to provide a communication system, a communication terminal, and a communication history recording method that can be used effectively.
[0005]
[Means for Solving the Problems]
  In order to achieve the above object, a communication system according to a first aspect of the present invention is a communication system in which a plurality of radio base stations are connected to a communication network, and the radio communication terminal is connected to another communication terminal via any of the plurality of radio base stations. In a communication system capable of communicating with a wireless communication terminal, when the wireless communication terminal communicates with another communication terminal via a wireless base station, the wireless communication terminal specifies where the wireless communication terminal originated or received The information indicating the location that can be transmitted is notified from the radio base station, and the wireless communication terminal that has received the notification uses the information indicating the notified location as the information that can identify the terminal of the communication partner, and the information indicating the date and time of transmission or reception WhentogetherLaterOne of the communication history information that can be displayed by the display means built in the wireless communication terminal is stored in a memory built in the wireless communication terminal.It is memorized.
[0006]
As a preferred embodiment, the above-mentionednotificationFor example as in claim 2Performed when making or receiving a callYou may do it.
[0007]
  Further, when the wireless communication terminal according to the invention of claim 3 communicates with another communication terminal via the wireless base station,Notified from the radio base stationInformation indicating a place where the user can specify where the call originated or received, information identifying the terminal of the communication partner, and information indicating the date and time when the call originated or receivedtogetherIn addition,As one of the communication history informationRememberMemorymeansDisplay means for reading out and displaying the communication history information stored in the storage means;It is characterized by comprising.
[0008]
  Also, as a preferred embodimentAnd the storage meansFor example, as described in claim 4Communication historyMeans to store information and when incomingCommunication historyYou may make it comprise with the means to memorize | store information.
  Further, as a preferred aspect, the display means is a means for displaying communication history information stored in the storage means in a list format, for example, as in claim 5, or a storage means, as in claim 6. The means for displaying the communication history information stored in an individual format, or the communication history information stored in the storage means can be displayed in a list format as claimed in claim 7, and the communication history information is in a list format. When a detailed display is designated when it is displayed, it may be configured by means capable of further displaying in an individual format.
  Moreover, as a preferable aspect, for example, a claim8As statedWhen desired communication history information is displayed on the display means, the communication partner of the desired communication history information is set as a new communication partner.It further comprises means for selecting and transmitting means for transmitting based on the terminal identification information of the selected communication partnerYou may do it.
[0009]
  Claims9In the communication history recording method according to the described invention, when a wireless communication terminal communicates with another communication terminal via a wireless base station,Notified from the radio base stationInformation indicating a place where the user can specify where the call originated or received, information identifying the terminal of the communication partner, and information indicating the date and time when the call originated or receivedtogetherLaterIt is possible to display with the display means built in the wireless communication terminalCommunication historyOne piece of informationAsIn the memory built into the wireless communication terminalIt is characterized by recording.
[0010]
  Moreover, as a preferable aspect, communication historyinformationFor example, claims10Communication history when making a call as describedinformationCommunication history of incoming callsinformationYou may make it record separately.
[0011]
[Action]
  In the present invention, when a wireless communication terminal communicates with another communication terminal via a wireless base station, that is, when the wireless communication terminal originates or terminates,Notified from the radio base stationInformation indicating a place where the user can specify where the call originated or received, information identifying the terminal of the communication partner, and information indicating the date and time when the call originated or receivedtogetherLaterOne of the communication history information that can be displayed by the display means built in the wireless communication terminal is stored in a memory built in the wireless communication terminal.Record. Therefore, the user can perform redial or recall based on the information that can identify the communication partner's terminal stored at the time of outgoing or incoming calls. In addition, when redialing or recalling, the user can perform redialing or recalling. In addition, not only information on when the redial or recalled communication was made, but also information on where it was made, that is, where the call originated or where it was received. This makes it easy to remember the content of the conversation during the previous communication.
[0012]
【Example】
  Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, an example applied to a PHS terminal will be described.
A. Example configuration
A-1. Configuration of wireless communication system
  FIG. 1 shows a PH according to an embodiment of the present invention.S etc.It is a block diagram which shows the structure of the radio | wireless communications system. In the figure, reference numeral 1 denotes a network management station that controls the telephone line network 4 to manage communication between terminals. Reference numeral 2 denotes a service management station that stores voice mails and various data in the database 3 and provides various services that give the voice mails and data to users in response to requests from the PHS terminal 6 to be described later. To do. The network management station 1 and the service management station 2 may be one.
[0013]
Next, the telephone line network 4 is a normal analog telephone line network spread throughout the country or a dedicated digital line network. Next, the wireless base stations 5 and 5 are installed in the telephone line network 4 at predetermined intervals, and are relay stations that connect the telephone line network 4 and the PHS terminals 6 and 6 wirelessly. The radio base stations 5 and 5 include memories 5a and 5a, respectively. The memories 5a and 5a have names (for example, the Shinjuku station west exit and the Tokyo station south exit) indicating locations where the radio base stations are installed. In the following, the base station location name (installation location name) is stored. The base station location name is transmitted to the PHS terminals 6 and 6 as information indicating the location of the radio base station being used when the PHS terminals 6 and 6 transmit and the line is connected. Next, the PHS terminals 6 and 6 are carried by the user and issue a line connection request to the wireless base station 5 installed in the vicinity by wireless to another PHS terminal 6 or a normal telephone in the home. 7 and a service by the service management station 2 via the radio base station 5.
[0014]
A-2. Configuration of PHS terminal
Next, FIG. 2 is a block diagram showing the configuration of the PHS terminal according to the embodiment of the present invention. In the figure, reference numeral 10 denotes a transmission / reception unit, which includes a frequency conversion unit including a reception unit and a transmission unit, and a modem including a reception unit and a transmission unit. The receiving unit of the frequency converting unit mixes a signal received by the antenna ANT, which is input via an antenna switch for distributing transmission / reception, with a local oscillation signal having a predetermined frequency output from the PLL synthesizer. Frequency conversion from 9 GHz band to IF (intermediate frequency) signal in the vicinity of 1 MHz band. Further, the transmission unit of the frequency conversion unit mixes a π / 4 shift QPSK modulation wave supplied from a modem, which will be described later, with a local oscillation signal of a predetermined frequency output from the PLL synthesizer, so that a frequency of 1.9 GHz band is obtained. Convert and radiate from the antenna ANT via the antenna switch. Next, the reception unit of the modem described above demodulates the IF signal from the frequency conversion unit, separates it into IQ data, and sends it to the communication control unit 11. In addition, the modem transmission unit creates IQ data from the data supplied from the communication control unit 11, modulates π / 4 shift QPSK, and sends it to the frequency conversion unit of the transmission / reception unit 10.
[0015]
Next, the communication control unit 11 includes a transmission side and a reception side, and performs frame synchronization and slot data format processing. The receiving side extracts data for one slot from the received data supplied from the modem of the transmitting / receiving unit 10 at a predetermined timing, extracts a unique word (synchronization signal) from this data, and generates a frame synchronization signal. In addition, after descrambling the control data part and the voice data part, the control data is sent to the control part 16, and the voice data is sent to the voice processing part 12. In addition, the transmission side adds control data to the audio data supplied from the audio processing unit 12, adds a scramble, etc., and then adds a unique word or the like to create transmission data for one slot, It is inserted into a predetermined slot in the frame at a predetermined timing and transmitted to the modem of the transmission / reception unit 10.
[0016]
Next, the voice processing unit 12 described above is configured by a speech codec and a PCM codec. The speech codec performs digital data compression / decompression processing, and includes a reception side and a transmission side. The receiving side decodes the ADPCM audio signal (4 bits × 8 KHz = 32 Kbps) supplied from the communication control unit 11 into a PCM audio signal (8 bits × 8 KHz = 64 Kbps), and decompresses it to output it to the PSM codec. The transmission side compresses the PCM audio signal supplied from the PCM codec by encoding it into an ADPCM audio signal, and sends it to the communication control unit 11. The PCM codec described above performs analog / digital conversion processing, and the receiving side converts the PCM audio signal supplied from the speech codec into an analog audio signal by D / A conversion, generates a sound from the speaker 13, and transmits it. The side converts the analog audio signal input from the microphone 14 into a PCM signal by A / D conversion, and sends it to the speech codec.
[0017]
Next, the key input unit 15 includes a numeric key for inputting the telephone number of the other party, a switch for performing on-hook / off-hook, a volume switch for changing sound output, and the like. The state of these keys and switches is supplied to the control unit 16. Next, the control unit 16 controls the entire apparatus according to a predetermined program. The ROM 17 stores programs executed by the control unit 16 and various parameters. Further, the RAM 18 stores data generated under the control of the control unit 16 or is used as a working area, and the destination name, address, and destination telephone number of the destination to be called are addressed. It is stored as a record.
[0018]
  The RAM 18 stores a redial list and a recall list. Each time a call is made, the redial list stores information about a call and a destination PHS terminal (partner terminal). As shown in FIG. The start date when the line was connected, the start time when the line was connected, the end date when the line was disconnected, the end time when the line was disconnected, and the base station location name indicating the location where the destination radio base station is installed The line type (public or home) used by the callee and the callee telephone number are stored. As described above, the base station location name is read from the memory 5a provided in the radio base station 5 and supplied. In addition, each time a call arrives, the recall list stores information about the call and the PHS terminal of the caller in sequence, and as this recall list,As shown in FIG.The start date when the line was connected, the start time when the line was connected, the end date when the line was disconnected, the end time when the line was disconnected, and the base station location name indicating the location where the source radio base station is installed The line type (public, home) and the caller telephone number used by the caller PHS terminal 6 are stored.
[0019]
The redial list is displayed on the display unit 19 to be described later when the redial key is touched by the user, and the user selects (touches) a desired destination from the displayed list. ) Automatically dials (redials) the destination. The recall list is displayed on the display unit 19 to be described later when the recall key is touched by the user, and the user selects a desired transmission source from the displayed list ( Touching) automatically calls (recalls) the caller. Details of this operation will be described later. Note that the memory of the RAM 18 is held by a power source from a secondary battery (not shown).
[0020]
Next, the display unit 19 includes a liquid crystal display that displays various data such as an operation mode, a telephone number, and a call time, and an LED that indicates on / off of a switch and the like. Under control, it displays various data and is a touch panel. When the displayed icon or the like is instructed (pressed) by a user or a touch pen described later, the function assigned to the icon is executed. It has become. Next, the timer 20 measures the current time in real time according to a predetermined clock, and supplies the current time to the controller 16 at a predetermined timing. This current time is used when storing the start time when the line is connected and the end time when the line is disconnected.
[0021]
A-3. Appearance structure of PHS terminal
Next, FIG. 4A is a top view showing the external configuration of the PHS terminal 6 described above, FIG. 4B is a left side view of the PHS terminal 6, and FIG. 4C is the PHS terminal 6. FIG. 4D is a right side view of the PHS terminal. It should be noted that parts corresponding to those in FIG. In the figure, 31 is a dial button for inputting numeric keys, characters, symbols, and the like. Reference numeral 32 denotes a call button, which goes off-hook when the call button is pressed. Reference numeral 33 denotes a cut button, which is turned off by pressing the call button after the call button is pressed to go off-hook. Reference numeral 34 denotes a transceiver / extension button, which is used when directly talking between PHS terminals.
[0022]
  Next, reference numeral 35 denotes a response / hold button which is pressed when holding during conversation or when transmitting a voice mail stored therein to the other party. Reference numeral 36 denotes various function buttons for performing redialing, registration / deletion of abbreviated numbers, measurement of call time, etc., and calling up a telephone book that is a database of telephone numbers registered in advance. Also, the volume button 37 shown in FIG. 4B is used for front-rear search and volume adjustment in the telephone directory. The record button 38 is operated when recording the voice from the other party or recording the voice mail to be transmitted to the other party. In FIG. 4D, reference numeral 40 denotes a power source of the PHS terminal, a transceiver, and a telephone.InIt is a slide switch that switches whether to use. Reference numeral 41 denotes a touch pen that is detachably attached to the main body, and by pressing the liquid crystal display surface of the display unit 19 described above, functions assigned to icons representing various functions can be executed, Make a selection.
[0023]
B. Operation of the embodiment
Next, the operation at the time of transmission of the PHS terminal according to the above-described embodiment will be described. In the following description, the operation of each part associated with a call is the same as the operation of a normal PHS terminal, and thus description thereof is omitted. FIG. 5 is a flowchart for explaining the operation of this embodiment.
[0024]
B-1. Caller processing
  First, in step S10 shown in FIG. 5, the PHS terminal 6 refers to a telephone directory registered in advance in the RAM 18 and selects a destination to make a call. When the destination is selected, next, in step S12, a call request is transmitted to the nearby (in the area) radio base station 5 using the destination telephone number of the selected destination. Next, in step S14, there was a response from the destination via the radio base station 5or notThat is, it is determined whether or not the line is connected.
[0025]
When the call request is sent, the radio base station 5 sends a connection request to the network management station 1 using the call destination telephone number in step S30. Next, in step S32, it is determined whether or not there is a response from the call destination. If there is no response from the destination, that is, if the line is not connected, the determination result in step S32 is “NO”, and the flow proceeds to step S34. In step S34, the outgoing callOriginalA disconnection notification is transmitted to the PHS terminal.
[0026]
When the disconnection notification is transmitted, the determination result in step S14 is “NO” in the PHS terminal, and the process proceeds to step S16. In step S <b> 16, based on the time by the time measuring unit 20, the date of transmission is stored as the start date, the time of transmission is stored as the start time, and the destination telephone number is stored in the redial list of the RAM 18. Then, the process ends. In this case, since the line is not connected, the end date and end time are not stored in the redial list.
[0027]
On the other hand, when there is a response from the destination in the radio base station 5, that is, when a line is connected, the determination result in step S32 is “YES”, and the process proceeds to step S36. In step S36, together with the connection notification, the base station location name (for example, the Shinjuku Station West Exit) stored in the memory 5a of the destination radio base station 5 is read out and transmitted to the source PHS terminal 6.
[0028]
On the other hand, in the PHS terminal 6, when the connection notification is transmitted, the determination result in step S14 is “YES”, and the process proceeds to step S18. In step S18, based on the time by the time measuring unit 20, the start date, start time, destination telephone number, base station location name supplied from the wireless base station 5, and line type (public / home) Is stored in the redial list of the RAM 18.
[0029]
Next, in the PHS terminal 6, in step S20, the radio base station 5 performs a call with the destination party in step S38. When the call ends, the PHS terminal 6 transmits a call end notification to the radio base station 5 in step S22. In step S40, the source radio base station 5 that has received the end-of-call notification disconnects the line (call disconnection) and ends the process. On the other hand, in the PHS terminal 6, when the end-of-call notification is transmitted in step S 22, the process proceeds to step S 24, and the end date and time when the line is disconnected are stored in the redial list of the RAM 18 based on the time by the time measuring unit 20. To do. Then, the process ends.
[0030]
B-2. Called party call processing
Next, a call process in the PHS terminal 6 and the radio base station 5 that are the call destinations (incoming side) will be described. Note that the call processing at the call destination will be briefly described because the same processing as the call processing at the call source described above is performed. In the destination PHS terminal 6, when a connection request is received from a nearby (in the area) wireless base station 5, a ring tone is sounded to notify the user. When the user presses the call button 32, the line is connected. At this time, the destination radio base station 5 reads the base station location name (for example, the Tokyo Station South Exit) stored in the memory 5a of the source radio base station 5, and sends it to the destination PHS terminal 6. Send. In the destination PHS terminal 6, similarly to the source PHS terminal, from the start date, start time, source telephone number, source radio base station 5 to which the line is connected, based on the time by the timer 20. The supplied base station location name and line type (public / home) are stored in the recall list of the RAM 18. When the call ends, the end date and time when the line is disconnected are stored in the recall list of the RAM 18 based on the time by the time measuring unit 20. Then, the process ends.
[0031]
B-3. Display example when redialing
Next, a display example of the display unit 19 at the time of redialing will be described. Here, FIGS. 6A and 6B are schematic views showing a display example of the display unit 19 in the redial process. As shown in FIG. 3 (a), by the above-described call processing, every time a call is made to the caller PHS terminal 6, the start date, the start time, the callee telephone number, The base station location name, line type (public / home), end date, and end time are stored. Also, when the call cannot be made, the same information is stored except for the end date and the end time.
[0032]
When the user presses the redial button shown in FIG. 4A, the destination name or the destination telephone number stored in the redial list is displayed on the display unit 19 as shown in FIG. 6A. Is displayed.ReWhen the destination telephone number stored in the dial list is already registered in the telephone directory, the destination name (personal name, company name, etc.) stored in the telephone directory is displayed. If it ’s not in your phone book,ReThe destination telephone number stored in the dial list is displayed as it is. In this state, when the partner to be redialed is known, the destination name or the destination telephone number is touched with the touch pen 41. If the destination name or the destination telephone number cannot be displayed on the display unit 19, the illustrated cursors 19a and 19b are touched with the touch pen 41, and the destination name or the destination telephone number is scrolled up and down. That's fine. When the destination name or the destination telephone number is touched, the PHS terminal 6 makes a call to the selected destination telephone number and, as shown in FIG. Displays the destination telephone number and a message indicating that a call is in progress.
[0033]
On the other hand, when the partner to be redialed is not clear in the display shown in FIG. 6A, the display is switched to “detailed display” by an instruction from the key input unit 15 or the touch pen 41. A display example in the detailed display is shown in FIGS. FIGS. 7A and 7B are schematic views showing other display examples during the redial process. In the detailed display example shown in FIG. 7A, as shown in hatched area A, the start date (4/15) and start time (AM6: 53) stored in the redial list are stored for one destination. , End time (10:09), destination base station location name (Shinjuku station west exit), destination name (Yuko Suzuki), destination phone number (03-1234-5678) are displayed. As described above, the destination name (Yuko Suzuki) is obtained by reading and displaying the destination name (personal name, company name, etc.) stored in the telephone directory.
[0034]
In the example shown in FIG. 7 (a), the line is connected in the previous call, but if the line is not connected after the call, it can be confirmed by the end time portion being blank. . If the line is not connected even if the call is made, a special character is displayed. If the display unit 19 can perform gradation display, the gradation can be changed or color display can be performed. You may distinguish by changing a color. In the display example shown in FIG. 7A, in the lower area B, the destination name is not displayed, and only the destination telephone number is displayed. This is because the destination telephone number is not registered in the telephone directory. If the destination name or the destination telephone number cannot be displayed on the display unit 19, the cursors 19a and 19b shown in the figure are touched with the touch pen 41 and scrolled up and down. Further, in the state shown in the figure, if the portion of the hatched area A is touched, the call is automatically sent to the destination.
[0035]
Next, in the detailed display example shown in FIG. 7B, for example, as shown in hatched area C, the start date (4/14) and start time stored in the redial list for one destination (AM8: 21), destination name (Tomoko Ando), and line type (home) are displayed. If the call destination telephone number is not registered in the phone book, the call destination telephone number is displayed as described above. Also, if the line is not connected even if the call is made, a special character is displayed, the gradation is changed when the display unit 19 can display gradation, or the color is displayed when color display is possible. You may distinguish by changing.
[0036]
  In the above-described embodiment, the display example at the time of recall was not particularly described. However, in FIGS. 6 to 7, the destination name or the destination telephone number is simply replaced with the source name or the source telephone number. The other information is the same. Moreover, in the above-described embodiment, transmission is performed.Time(Or when incoming)The information stored in the URL includes the start date, start time, and destination phone number (OrCalling phone number),Destination base station location name (or source base station location name), Line type, end date, and end time, but not limited to this, for example, information stored in the PHS terminal of the transmission sourceAsThe base station location name of the transmission source may be stored, or the location name of the base station of the transmission destination may be stored as information stored in the PHS terminal of the transmission destination. In this way, the source PHS terminal can know where the call originated, and the destination PHS terminal can know where the call arrived. You will be able to know. Furthermore, in this embodiment, the base station location name, line type, etc. are stored in the database 5a of the base station 5, but not limited to this, stored in the database 3 of the network management station 1 or the service management station 2. You may keep it. As a result, the network management station 1 or the service management station 2 recognizes that the communication path between the terminals is connected, and notifies each terminal of the base station location name, the line type, and the like.
[0037]
【The invention's effect】
  According to the present invention, when a wireless communication terminal communicates with another communication terminal via a wireless base station, that is, when the wireless communication terminal originates or terminates,Notified from the radio base stationInformation indicating a place where the user can specify where the call originated or received, information identifying the terminal of the communication partner, and information indicating the date and time when the call originated or receivedtogetherLaterOne of the communication history information that can be displayed by the display means built in the wireless communication terminal is stored in a memory built in the wireless communication terminal.Since it is memorized, it is possible to redial or recall based on the information that can identify the communication partner's terminal stored at the time of outgoing or incoming calls, and when redialing or recalling, Before doing this, you should not only know when the redial or recalled communication was made, but also where it was done, i.e. where you made the call or where you were. It is possible to confirm information that easily recalls the user's memory as to whether or not the conversation has occurred during the previous communication.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a wireless communication system such as a PHS terminal according to an embodiment of the present invention.
FIG. 2 is a block diagram showing a configuration of a PHS terminal according to the present embodiment.
FIG. 3 is a schematic diagram showing a data structure of a redial list registered in a RAM of a PHS terminal according to the present embodiment.
FIG. 4 is a schematic diagram showing an external configuration of a PHS terminal according to the present embodiment.
FIG. 5 is a flowchart for explaining an operation of a calling process according to the present embodiment.
FIG. 6 is a schematic diagram illustrating a display example of a display unit during redialing according to the present embodiment.
FIG. 7 is a schematic diagram showing another display example of the display unit at the time of redialing according to the present embodiment.
[Explanation of symbols]
1 Network management station
2 Service Management Bureau
3 Database
4 Telephone network (communication line)
5 radio base stations
5a memory (location name storage means)
6 PHS terminal (terminal)
7 Telephone
ANT antenna
10 Transmitter / receiver (terminal transmitter / receiver)
11 Communication control unit (terminal transmission / reception means, transmission means)
12 Voice processing part
13 Speaker
14 Microphone
15 Key input section
16 Control unit (selection means, reading means)
17 ROM
18 RAM (communication history storage means, destination storage means)
19 Display section (display means)
20 Timekeeping (Timekeeping means)
31 Dial button
32 Call button
33 Off button
34 Transceiver / Extension button
35 Answer / Hold button
36 Function buttons
37 Volume button
38 Record button
40 Slide switch
41 Touch pen

Claims (10)

In a communication system in which a plurality of radio base stations are connected to a communication line network, and a radio communication terminal can communicate with other communication terminals via any of the plurality of radio base stations,
When the wireless communication terminal communicates with another communication terminal via a wireless base station, the wireless communication terminal has information indicating a place where the wireless communication terminal can specify where the wireless communication terminal originated or received from the wireless base station. The wireless communication terminal that has been notified and has received the notification sends the information indicating the notified location to the wireless communication terminal later together with information that can identify the terminal of the communication partner and information that indicates the date and time of transmission or reception. A communication system characterized in that it is stored in a memory built in the wireless communication terminal as one piece of communication history information that can be displayed by a built-in display means .   The communication system according to claim 1, wherein the notification is performed at the time of outgoing call or incoming call. In a wireless communication terminal that communicates with other communication terminals via a wireless base station,
When communicating with other communication terminals via a radio base station, information indicating a place where the self notified or received from the radio base station can be identified, information that can identify the communication partner terminal, and transmission Alternatively, it comprises storage means for storing as one of the communication history information together with information representing the date and time of arrival , and display means for reading and displaying the communication history information stored in the storage means. Wireless communication terminal. 4. The wireless communication terminal according to claim 3 , wherein the storage means comprises means for storing communication history information at the time of outgoing call and means for storing communication history information at the time of incoming call . The wireless communication terminal according to claim 3 or 4 , wherein the display means is means for displaying communication history information stored in the storage means in a list format . The wireless communication terminal according to claim 3 or 4 , wherein the display means is means for displaying communication history information stored in the storage means in an individual format . The display means includes means for displaying communication history information stored in the storage means in a list format and means for displaying in an individual format. The means for displaying in an individual format is stored in the storage means. wireless communication terminal according to claim 3 or 4, wherein the communication history information, characterized in that it is activated when the display is specified detail when it is displayed in a list that are. When the desired communication history information is displayed by the display means, a transmission is made based on the means for selecting the communication partner of the desired communication history information as a new communication partner and the terminal identification information of the selected communication partner The wireless communication terminal according to any one of claims 3 to 7, further comprising a transmission unit configured to perform transmission . A communication history recording method in a wireless communication terminal,
When a wireless communication terminal communicates with another communication terminal via a wireless base station, it is possible to identify the communication partner's terminal with information indicating a place where the self notified from the wireless base station can identify where it originated or received Along with the information and the information indicating the date and time of transmission or reception, it is recorded in a memory built in the wireless communication terminal as one of communication history information that can be displayed later by the display means built in the wireless communication terminal. A communication history recording method. 10. The communication history recording method according to claim 9, wherein the communication history information is recorded separately for communication history information when a call is made and communication history information when a call is received .

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