JPH06350523A - Mobile phone system - Google Patents

Abstract

(57) [Abstract] [Object] The present invention is capable of recognizing a later incoming call without interrupting the current communication when the wireless telephone terminal receives an incoming call during a call, and is a later incoming call source. It is an object of the present invention to provide a mobile telephone system capable of grasping information from a calling party. [Structure] While a wireless telephone terminal 4a is communicating via a base station 2a, another wireless telephone terminal 4b or a telephone 3a or 3b.
When there is an incoming call from the exchange 1, the wireless telephone terminal 4
a is notified of the incoming call information, and at the request of the wireless telephone terminal 4a, the incoming call information from the other is received by the base station 2a in another slot or in the remaining time when the current communication speed is changed. 4a, whereby the radiotelephone terminal 4a receives the incoming call information and stores it in the incoming call information storage unit 5a, so that the communication is interrupted even if an incoming call from another terminal occurs during the communication. Instead, it is possible to receive information from the calling terminal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile telephone system that accommodates a digital cordless telephone terminal.

In recent years, wireless telephone terminals have become smaller and lighter, and are becoming suitable for people to carry around at all times. In addition, since it is assumed that the wireless telephone terminal is carried, it is likely that the wireless telephone terminal will be used exclusively by an individual. Therefore, instead of calling the telephone, a person is called.

In such a usage environment, when a wireless telephone terminal receives an incoming call from another person during communication, it is desired that the incoming call can be recognized and the contents can be grasped without holding the current communication. ing.

[0004]

2. Description of the Related Art Conventionally, in a mobile telephone system accommodating a radiotelephone terminal, when a call is received from another person during communication, the current communication is put on hold and call waiting is provided to notify the information of the incoming call. Is specified.

[0005]

By the way, the above-mentioned call waiting and the service equivalent thereto perform communication with a caller who is a later-originating caller when an incoming call from another party occurs during communication. However, there is a problem that the current call must be suspended by suspending the current call, and that the caller who starts earlier must wait for the communication time with the caller who starts later.

The present invention has been made in view of the above points, and when there is an incoming call from another while the wireless telephone terminal is in a call, a later incoming call can be received without interrupting the current communication. It is an object of the present invention to provide a mobile telephone system that can be recognized and can grasp information from a caller who is a later incoming caller.

[0007]

FIG. 1 shows a principle diagram of a mobile telephone system according to the present invention. In this mobile telephone system, 1 is an exchange, 2a, 2b, 2c are base stations, 3a, 3
Reference numeral b is a telephone, and 4a and 4b are wireless telephone terminals. The wireless telephone terminals 4a and 4b have incoming call information storage units 5a and 5b.

The exchange 1 includes a plurality of wireless telephone terminals 4a,
4b, a plurality of base stations 2a, 2 which control a wireless line.
The radio telephone terminals 4a and 4b are connected to each other or the radio telephone terminals 4a and 4b and the telephones 3a and 3b are connected to each other.

The base stations 2a, 2b and 2c are connected to the radio telephone terminals 4a and 4b by radio lines, and the exchange 1
And a function of relaying communication with the wireless telephone terminals 4a and 4b.

The telephones 3a and 3b are connected to the exchange 1 by a wired line and communicate with other telephones and the radio telephone terminals 4a and 4b. Wireless telephone terminals 4a, 4b
Communicates with a base station (eg, 2a) with which its own terminal (eg, 4a) can communicate in a service area formed by a plurality of base stations 2a, 2b, 2c using a wireless line, and the other terminal via the exchange 1. It communicates with a wireless telephone terminal (for example, 4b) or telephones 3a and 3b.

The incoming call information storage units 5a and 5b are for storing communication information due to incoming calls that are further generated during communication by the wireless telephone terminals 4a and 4b. Also, when a wireless telephone terminal is receiving a call from another terminal during communication, the terminal that is in communication wirelessly has a function of requesting the base station to communicate incoming call information from another terminal in another slot. Telephone terminal 4a
And 4b, and the base stations 2a, 2b, and 2c have a function of communicating incoming information from another in another slot in response to the request.
It is preferable to provide it.

Further, when a wireless telephone terminal receives an incoming call from another terminal during communication, the terminal in communication sends the incoming call information from the other terminal to the base station by changing the current communication speed. The wireless telephone terminals 4a and 4b are provided with a function of requesting communication in a time zone, and a base station is provided with a function of communicating incoming call information from others in the remaining time zone in which the current communication speed is changed according to the request. It is preferably provided on 2a, 2b and 2c.

Further, the radio telephone terminals 4a and 4b have a function of accumulating the telephone number of the caller included in the incoming call information of the later call and calling the accumulated telephone number after the end of the current call. It is preferable to provide.

[0014]

In the above-described present invention, for example, when an incoming call is received from another wireless telephone terminal 4b or telephone 3a or 3b while the wireless telephone terminal 4a is communicating via the base station 2a, the wireless telephone from the exchange 1 is used. The incoming call information is notified to the terminal 4a.

At the request of the radio telephone terminal 4a,
The base station 2a transmits the incoming call information from the other to the wireless telephone terminal 4a in the remaining slot or in the remaining time zone when the current communication speed is changed. As a result, the wireless telephone terminal 4a receives the incoming call information and stores it in the incoming call information storage unit 5a.

Therefore, even when an incoming call from another person occurs during communication, it is possible to receive information from the calling terminal device without interrupting the communication.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 2 is a block diagram showing an entire mobile telephone system according to an embodiment of the present invention, FIG. 3 is a block diagram showing a wireless telephone terminal shown in FIG. 2, and FIG. 4 is a block diagram showing a base station shown in FIG. Is.

However, in FIGS. 2 to 4, parts corresponding to the respective parts of the principle diagram shown in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted. In the exchange 1 shown in FIG. 2, 8a, 8
Reference numerals b and 8c are base station accommodation units. These base station accommodation units 8
a, 8b, and 8c are interfaces corresponding to the BRI (Basic Rate Interface) of ISDN, and the base stations 2a, 2b, and
2c and is used to send and receive information to and from the wireless telephone terminals 4a and 4b.

Reference numerals 6a and 6b denote telephone accommodating portions for accommodating various telephones 3a and 3b in the exchange 1. 7
Is a switch unit for connecting the radio telephone terminals 4a and 4b to the telephones 3a and 3b, the radio telephone terminals 4a and 4b, and the telephones 3a and 3b.

Reference numeral 9 is a state management unit, which is a radio telephone terminal 4
It manages the communication status of the a, 4b and the telephones 3a, 3b. Reference numeral 10 is a control unit, which is a base station accommodation unit 8a, 8
b, 8c, the telephone accommodating portions 6a, 6b, the switch portion 7, and the state management portion 9 to control the radio telephone terminals 4a, 4b and the telephones 3a, 3b, the radio telephone terminals 4a, 4b, and the telephones 3a, 3b. It enables mutual communication.

Next, the wireless telephone terminal 4a shown in FIG.
The configuration of 4b will be described with reference to FIG. However, in FIG. 3, parts corresponding to the respective parts of the principle diagram shown in FIG. 2 are denoted by the same reference numerals, and description thereof will be omitted.

Reference numeral 11 denotes a control unit, which is a base station 2a, 2b,
The incoming call information from 2c is analyzed, and the incoming call information storage units 5a, 5
The function b stores the incoming call information and controls the entire wireless telephone terminal such as instructing speed conversion.

Reference numeral 12 is a TDMA (Time Division Multiple
Access) Control unit that controls the assembly and disassembly of information that is time-division multiplexed and transmitted and received. Thirteen
Is a wireless unit that modulates and demodulates information to be transmitted and received.

Reference numeral 14 denotes a speed conversion unit, which is a base station 2a, 2
It controls the speed of the voice transmitted / received between b and 2c. Reference numeral 15 denotes a digital conversion unit which performs conversion between analog information and digital information.

Reference numeral 16 is a speaker for outputting the voice of the communication partner, and 17 is a microphone for inputting the voice of the user of the own terminal. Next, the configuration of the base stations 2a, 2b, 2c shown in FIG. 2 will be described with reference to FIG. However, in FIG.
The same reference numerals are given to the portions corresponding to the respective portions of the principle diagram shown in, and the description thereof will be omitted.

Reference numeral 18 denotes a control unit, which is a radio telephone terminal 4
The control of the entire base station is performed by processing control information transmitted to and received from a and 4b, processing control information transmitted to and received from the exchange 1, and instructing speed conversion.

Reference numeral 19 denotes a TDMA control unit, which controls the assembling and disassembling of information which is time-division multiplexed and transmitted and received. Reference numeral 20 denotes a wireless unit that modulates / demodulates information to be transmitted / received.

Reference numeral 21 is a speed conversion unit, which controls the speed of voices transmitted and received between the radio telephone terminals 4a and 4b,
In addition, the speed is matched with the exchange 1. A control data processing unit 22 controls communication of control information exchanged with the exchange 1.

Reference numeral 23 is a line terminating unit for assembling or disassembling information transmitted / received with the exchange 1 into control information and voice data. Next, the operation of the system having the above configuration will be described. However, assuming that this is an operation example in the case of using the frame structure of the wireless section used in the simple mobile phone system, the frame structure of the wireless section is shown in FIG.

As shown in FIG. 9, one frame consists of 5 frames for transmitting and receiving information in the radiotelephone terminal.
ms, and slots 1, 2, 3, within that one frame
The 4-multiplex reception information of 4 is inserted, and the transmission information of the other 4-multiplex slots is also inserted.

First, referring to the sequence diagram shown in FIG. 5, when an incoming call is made to the wireless telephone terminal 4a from the telephone 3b while the wireless telephone terminal 4a is communicating with the telephone 3a, another slot is placed in another slot. A description will be given of the operation when responding.

As shown by reference numeral 31 in FIG. 5, it is assumed that the radiotelephone terminal 4a is in communication with the telephone 3a, and the telephone 3b makes a call to the radiotelephone terminal 4a at this time. In this case, as indicated by reference numerals 32, 33 and 34, the telephone 3b
To exchange 1, from exchange 1 to base station 2a, to base station 2
Call setup (SETUP) is performed from a to the wireless telephone terminal 4a.

This is carried out without interruption of the communication which the radio telephone terminal 4a is currently making with the telephone 3a, and the exchange 1 uses the portion indicated by the symbol SA in FIG. 8 to make a call from the telephone 3b. It is realized by notifying the wireless telephone terminal 4a.

The portion SA is the SAC in the speech channel.
The CH portion is a portion representing a low-speed associated control channel capable of transmitting low-speed control information. By this operation, the radio telephone terminal 4a recognizes the incoming call from the telephone 3b and requests the base station 2a to allocate another slot.

This is performed in parallel with the link channel establishment request indicated by reference numeral 35 in FIG. By this request, as indicated by reference numeral 36, the base station 2a sends the radio telephone terminal 4a
Is notified of link channel allocation. That is, another slot is assigned.

For example, when communication is performed in slot 1 in one frame shown in FIG. 9, a new slot, for example, slot 2 is allocated from the base station 2a according to the previous request.

Thereafter, the asynchronous balanced mode setting indicated by the reference numeral 37 and the unnumbered response indicated by the reference numeral 38 are performed, and the reference numeral 3 is given.
As indicated by reference numerals 9, 40 and 41, the wireless telephone terminal 4a and the telephone 3b are connected.

Then, as indicated by reference numeral 42, communication is in progress, and, for example, a message such as "I am currently calling. Please give me a message if you are busy." Is sent from the radio telephone terminal 4a to the telephone 3b.

After such a voice is transmitted, the radiotelephone terminal 4a stores the information (voice or data) from the telephone 3b. After the call ends, the wireless telephone terminal 4a
The operator of the terminal 4a is notified of the presence of incoming call information by an alarm or the like.

In this way, since the message of the other party can be stored in the radio telephone terminal 4a during the call, it is possible to receive an incoming call during the call without interrupting the call.

Next, referring to the sequence diagram shown in FIG. 6, if an incoming call is made to the wireless telephone terminal 4a from the telephone 3b while the wireless telephone terminal 4a is communicating with the telephone 3a, half rate conversion is performed. The operation at the time of handling will be described.

As shown by reference numeral 45 in FIG. 6, it is assumed that the radiotelephone terminal 4a is in communication with the telephone 3a, and the telephone 3b makes a call to the radiotelephone terminal 4a at this time. In this case, as indicated by reference numerals 46, 47 and 48, the telephone 3b
To the wireless telephone terminal 4a, call setup (SETUP) is performed without interrupting the current communication.

By this operation, the radio telephone terminal 4a
When the incoming call from the telephone 3b is recognized, a speed change request (half rate request) is issued to the base station 2a as indicated by reference numeral 49.

When the request is accepted by the base station 2a, the base station 2a transmits a speed change acceptance to the radiotelephone terminal 4a, as indicated by reference numeral 50, and half-rates it with the radiotelephone terminal 4a. I do.

An example of this half-rate conversion is shown in FIG. Half-rate conversion means that one slot continuously generated every 5 ms as shown in FIG. 10 is not used in one call but is used at 10 ms intervals.

Thereafter, a link channel establishment request and a link channel allocation are made as indicated by reference numerals 51 and 52, and further, an asynchronous balanced mode setting (S) indicated by reference numeral 53 is performed.
ABM) and an unnumbered response (UA) indicated by reference numeral 54 is performed, and the wireless telephone terminal 4a and the telephone 3b are connected (CONN) as indicated by reference numerals 55, 56 and 57.

Then, communication is performed as indicated by reference numeral 42. This will be done in the remaining half of the time after the half-rate conversion, for example, the wireless telephone terminal 4
A message is sent from a to the telephone 3b such as "I am currently on the phone. If you are interested, please give me a message."

After such a voice is sent, the radiotelephone terminal 4a stores the information (voice or data) from the telephone 3b. After the call ends, the wireless telephone terminal 4a
The operator of the terminal 4a is notified of the presence of incoming call information by an alarm or the like.

In this way, since the message of the other party can be stored in the wireless telephone terminal 4a during a call, it is possible to receive an incoming call during the call without interrupting the call.

Next, referring to the sequence diagram shown in FIG. 7, when an incoming call is made to the wireless telephone terminal 4a from the telephone 3b while the wireless telephone terminal 4a is communicating with the telephone 3a, The operation of storing the telephone number in the wireless telephone terminal 4a will be described.

As shown by reference numeral 61 in FIG. 7, it is assumed that the radiotelephone terminal 4a is in communication with the telephone 3a and the telephone 3b makes a call to the radiotelephone terminal 4a at this time. In this case, as indicated by reference numerals 62, 63 and 64, the telephone 3b
To the wireless telephone terminal 4a, call setup (SETUP) is performed without interrupting the current communication.

Here, the exchange 1 is the radio telephone terminal 4a.
Recognizes that it is busy, notifies the telephone 3b that it is busy, and disconnects (DISC) the line with the telephone 3b as indicated by reference numeral 65. Further, the exchange 1 notifies the radio telephone terminal 4a of the telephone number of the telephone 3b.

The radio telephone terminal 4a receiving this notification
Accumulates the phone number of the caller. After the call ends, the wireless telephone terminal 4a notifies the operator of the terminal 4a that the telephone number is stored, and the operator can call the telephone 3b by the telephone number.

[0054]

As described above, according to the present invention,
If there is an incoming call from another person while the wireless telephone terminal is in a call,
There is an effect that a later incoming call can be recognized and information from a caller who is a later incoming caller can be grasped without interrupting the current communication.

[Brief description of drawings]

FIG. 1 is a principle diagram of the present invention.

FIG. 2 is a block diagram showing an entire mobile telephone system according to an embodiment of the present invention.

FIG. 3 is a block diagram of the radio telephone terminal shown in FIG.

FIG. 4 is a block diagram of the base station shown in FIG.

FIG. 5 is an explanatory diagram of an operation when communication is performed by another slot allocation.

FIG. 6 is an operation explanatory diagram when communication is performed by half rate conversion.

FIG. 7 is an operation explanatory diagram when accumulating a telephone number of the other party.

FIG. 8 is a slot configuration diagram of a communication channel.

FIG. 9 is a configuration diagram of a TDMA frame in a wireless section.

FIG. 10 is an explanatory diagram of half rate conversion.

[Explanation of symbols]

 1 exchanges 2a, 2b, 2c base stations 3a, 3b telephones 4a, 4b wireless telephone terminals 5a, 5b incoming call information storage section

Claims (4)

[Claims] 1. A base station (2a, 2b, 2) connected to an exchange (1).
Digital radio telephone terminal that communicates via c)
In the mobile telephone system accommodating (4a, 4b), the wireless telephone terminal (4a, 4b) detects an incoming call generated during communication by the wireless telephone terminal (4a, 4b), and this is detected. A mobile telephone system comprising an incoming call information storage unit (5a, 5b) for receiving and storing communication information of an incoming caller. 2. After the detection of the incoming call, another slot allocation request means for requesting another slot allocation of a communication channel other than the currently used communication channel to the base station (2a, 2b, 2c), and the base station (2a, 2b, 2
Another slot corresponding to another slot allocation notification from c) and the currently used slot are used at the same time to wirelessly communicate with the wireless telephone terminal (4a, 4b) and the base station (2a, 2b, 2c). The slot use control means for enabling communication is connected to the wireless telephone terminal (4
a, 4b), which allocates another slot of a communication channel other than the currently used communication channel according to another slot allocation request from the other slot allocation requesting means, and notifies the wireless telephone terminal of the allocation of the other slot.
(4a, 4b) the slot allocation control means for transmitting to the base station (2
a, 2b, 2c), when an incoming call occurs during communication of the wireless telephone terminal (4a, 4b), the communication information of the incoming call originator is transmitted / received in the other slot, and the incoming call information storage section is provided. The mobile telephone system according to claim 1, wherein the data is stored in (5a, 5b). 3. Communication speed change requesting means for requesting a change in communication speed of the wireless section between the wireless telephone terminal (4a, 4b) and the base station (2a, 2b, 2c), and the base station (2a , 2b, 2c) to change the communication speed according to the communication speed change notification from the wireless telephone terminal device and communication control means for enabling other communication in the wireless section in the remaining time zone after the change. (4a, 4b), changing the current communication speed in response to a request from the communication speed change requesting means, and enabling other communication in the wireless section in the remaining time zone after the change, The base station (2a, 2b, 2c) is provided with communication control means for communicating a communication speed change notification to the wireless telephone terminal (4a, 4b), and an incoming call is received during communication of the wireless telephone terminal (4a, 4b). In case of occurrence of, the wireless telephone terminal (4a, 4b) and the base station (2a, 2b, 2c)
The communication control means changes the communication speed, and in the remaining time after the change, the communication information of the generated caller is transmitted / received and stored in the call reception information storage unit (5a, 5b). The mobile telephone system according to claim 1. 4. The incoming call information storage unit (5a, 5b) stores the telephone number of the incoming caller included in the communication information, and means is provided for issuing to the telephone number after the end of the current communication. The mobile telephone system according to any one of claims 1 to 3.