JP2594277B2 - Wireless telephone equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio telephone device used for a cordless telephone, a car telephone, and the like.

2. Description of the Related Art Generally, a radio connection device (CE) for performing radio communication with a radio telephone (RTEL) such as a cordless telephone or a mobile telephone as a mobile station is arranged in each radio zone, and these radio connection devices (CE) and Radio circuit controller (RC
U), and this radio circuit controller (RCU) is connected to a switching connection device such as a private branch exchange (PBX) or a central office exchange, so that communication between radio telephones (RTEL) and radio telephones (RTEL)
2. Description of the Related Art A wireless telephone device for performing communication or the like via a local line is known.

In this radio telephone device, since the radio telephone (RTEL) is a mobile station, a radio zone or the like where each radio telephone (RTEL) is located is registered in advance in the radio channel control unit (RCU), and the radio channel control device (RCU) is registered. The RCU forms a communication path with a radio telephone (RTEL) using the registered radio zone.

Note that the above-described radio channel control device (RCU) and radio connection device (CE) correspond to a system control station in a car telephone system and a base station in each radio zone, respectively.

Conventionally, this type of radiotelephone device is a radiotelephone (RTEL)
When an incoming call arrives, the pre-registered radio telephone (RT
A call is made via the wireless connection device (CE) in the wireless zone of the EL), a ringback tone is sent to the calling telephone, and a predetermined time has elapsed if the called wireless telephone (RTEL) does not respond. A busy tone or a voice message indicating absence is transmitted, or a ringback tone is continuously transmitted.

Problems to be Solved by the Invention However, in the above-described conventional radio telephone device, the radio telephone (RTEL) moves out of the registered radio zone, and the radio telephone before the new radio zone in which it is currently located is registered. (RTEL) has the problem that it cannot be called when it arrives.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a wireless telephone device that can call a wireless telephone even when the wireless telephone moves outside a registered wireless zone.

Means for solving the problem The present invention, in order to solve the above problems, at the time of an incoming call, the wireless line control device calls the wireless connection device via a wireless connection device arranged in a previously registered wireless zone, When there is no response from the wireless telephone within a predetermined time, the wireless telephone is called via a wireless connection device arranged in each wireless zone.

Operation The present invention is configured to call a wireless telephone via a wireless connection device arranged in each wireless zone when there is no response from the wireless telephone within a predetermined time. Even if the telephone moves, the wireless telephone can be called.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram showing one embodiment of a wireless telephone device according to the present invention, FIG. 2 is a detailed block diagram of each device of the wireless telephone device of FIG. 1, and FIG. FIG. 4 is an explanatory diagram of each file of the wireless line control device of FIG. 2, FIG. 4 is an explanatory diagram of each file of the wireless connection device of FIG. 1 and FIG.
FIG. 6 is an explanatory diagram of each file of the wireless telephone shown in FIGS. 1 and 2, and FIG. 6 is a timing chart for explaining the operation of the wireless telephone device shown in FIGS.

In FIG. 1, 11, the radio network controller a fixed station connected to the existing exchange 10 controls the entire wireless telephone device _{(RCU), 12 1, 12} 2 ~12 n , respectively, in the fixed station there the communication radius a wireless connection device of small power of about 30 to 100 m (CE), these wireless connection device 12 _1, 12 ₂ ~12 _n are a plurality, respectively. And these wireless connection devices 12 ₁ , 1
2 ₂ to 12 _n constitute a single radio zone Z _1, Z ₂ to Z _n respectively, performs radio communication with the radio telephone set (RTEL) 13 which is located to the wireless zone.

Radio zones Z _1, Z ₂ ~Z _n becomes a radio service area the radio network controller 11 controls, when the respective radio telephone 13 mobile (for cordless telephones), etc. the party is located in the service area The other wireless telephones 13 via the wireless line control device 11 and the wireless connection devices 12 ₁ , 12 _{2 to} 12 _n
It is configured to be able to perform communication with the server and communication via the office line.

The radio network controller 11 is connected through the same number of telephone lines of the wireless telephone 13 against the existing exchange 10, the wireless connection device 12 _1, 12 ₂ to the respective radio zones Z _1, Z ₂ to Z _n 12 _n
Is based on the busy hour traffic and call loss
Are arranged in a fraction of the number.

Next, with reference to FIG. 2, a detailed configuration of the wireless line control device 11, each wireless connection device 12, and each wireless telephone 13 will be described.

In the radio channel controller 11, a control unit 110 controls the entire radio channel controller 11.
Is a microcomputer (CPU), a ROM (read only memory) storing an execution program of the CPU, and a RAM (random access memory) having a work area of the CPU and the like.
It is configured more schematically.

The ROM of the control unit 110 stores a program for registering a wireless zone in which the wireless telephone 13 is located, which will be described later, and a program for wireless communication in addition to an unattended calling program for calling the wireless telephone 13 that has moved out of the wireless zone. Is stored.

111 _{1 to} 111 _N are office line interfaces to which telephone lines are connected, 112 is a tone trunk that generates various tone signals, and 113 _{1 to} 113 _m are each wireless connection devices.
Wireless line interface connected to a 12 ₁ ~12 _n, 114
Is the trunk line interface 111 _{1 to} 111 _N and the tone trunk
It is a matrix switch for connecting 112 to the wireless line interfaces 113 _{1 to} 113 _m .

Reference numeral 115a denotes an identification number of the radio network controller 11, that is, an identification number (SYS-ID) of the system, a system capacity indicating the number of subscribers, a radio zone number n, as shown in FIG. Various data such as the number of control stations of the wireless connection device 12, the number of wireless connection devices, and station data of the wireless connection device such as a monitoring timer value are stored. The program of the control unit 120, the wireless line connection file 125a and the station data file 125b
Is a system file in which various data to be stored in the system file are stored.

Reference numeral 115b denotes each wireless telephone 13 as shown in FIG.
Call number (subscriber number), identification number (RTEL-I
D) is a subscriber file storing location information such as the number of the wireless zone where the current location is located, and subscriber class data. The location information is stored when the wireless telephone 13 moves between wireless zones as described later. Rewritten.

Reference numeral 115c denotes an office data file storing various data such as the numbers of office lines and wireless lines and the line status indicating the line implementation status, as shown in FIG. 3 (c).

115e, as shown in FIG. 3 (d), the calling number (subscriber number) of the subscriber who is currently talking, the line number of the central office,
As shown in FIG. 3 (e), a line connection file 115f storing various data such as a line number with the wireless connection device, a status of outgoing / incoming calls, a line connection time, etc. The wireless area configuration file stores various data such as a number, the number of wireless connection devices installed in each wireless zone, and the identification number of the wireless connection device.

Reference numeral 116 denotes a control console on which the operator inputs various data in the files 115a to 115f, and displays the monitoring result of the wireless connection device as a control station.

In each wireless connection device 12, reference numeral 120 denotes each wireless connection device 1.
2 is a control unit that controls the whole; the control unit 120 includes a microcomputer (CPU), a ROM (read only memory) storing an execution program of the CPU, and a RAM (random access memory) having a work area of the CPU. Memory).

121 is a multi-channel access (MCA) wireless transceiver for performing wireless communication with the wireless telephone 13;
A line interface connected to the radio network controller 11 via a transmission line of a line (2W), a control signal transceiver for transmitting and receiving a control signal to and from the radio network controller 11, and 124 turn on / off a voice signal on the communication line. It is a sound control unit that turns off or amplifies.

125a, as shown in FIG. 4 (a), controls the current operation state of the wireless connection device 12, the identification number (RTEL-ID) of the currently connected wireless telephone, and the calling / incoming processing. This is a wireless line connection file that stores various data such as a sequence, various control signals with the wireless telephone 13 (wireless side), and various control signals with the wireless line control device 11 (wired side).

125b, as shown in FIG. 4 (b), the identification number (SYS-ID) of the wireless channel control device 11, the number of the wireless zone in which the wireless connection device is installed, the identification number of the wireless connection device, A station data file that stores various data such as the channel search cycle, dial pause time when dialing an outside line, dial pulse speed (10pps or 20pps), dial pulse make rate (33%, 50% or 66%) It is.

In each wireless telephone 13, a control unit 130 controls the entire wireless telephone 13. The control unit 130 includes a microcomputer (CPU), a ROM (read only memory) storing an execution program of the CPU, and And a RAM (random access memory) having a work area for the CPU and the like.

131 is a multi-channel access (MCA) wireless transceiver for performing wireless communication with the wireless connection device 12, 132 is
Amplifies and turns on / off the audio signal of the receiver and microphone of the handset 132a, and also controls the radio line controller.
A transmitter / receiver unit that generates various tone signals (voice signals) corresponding to a call signal and the like transmitted from the wireless communication device 11 via the wireless connection device 12, 133 is a dial key for inputting a dial number, etc., and 134 is a handset. Hook switch (SW) which is turned on / off by off hook / on hook of 132a,
135 is a location registration button for registering location information such as a wireless zone where the wireless telephone 13 is located in the subscriber file 115b of the radio network controller 11, and 136 is a dial number method (PB signal or PB / DP switch (SW) for selecting a DP signal).

138a, as shown in FIG. 5 (a), the connection state of the wireless telephone, the number of the connected wireless connection device 12, and the system number (SYS
-ID), a wireless line connection file in which various data such as a connection sequence with the wireless connection device 12, a control signal with the wireless connection device 12, and the like are stored.

138b is the wireless telephone as shown in FIG. 5 (b).
As shown in FIG. 5C, the wireless telephone ID file 138c storing the identification number (RTEL-ID) of the thirteen stores the number (position information) of the wireless zone in which the wireless telephone 13 is located. As shown in FIG. 5 (c), the wireless zone number file 138d is a shortened dial file in which abbreviated numbers and dial codes are stored in correspondence, and 138e is shown in FIG. 5 (e). A dial code corresponding to the dial number input through the dial key 133 last time is stored or is a dial file.

In the case of a cordless telephone, the members 130 to 138e are housed in a portable housing, and in the case of an automobile telephone, they are housed in a housing that can be installed on a center console or the like of an automobile.

 Next, the operation of the embodiment according to the above configuration will be described.

(1) Location Registration from Radiotelephone 13 First, an operation for registering a radio zone in which the radiotelephone 13 is located will be described.

When the position registration switch 135 of the wireless telephone 13 is depressed, the control unit 130 turns on the wireless transceiver 131, the control sequence of the wireless line connection file 138a, the position report request signal by the control signal, and the wireless telephone ID file. 138b stores the identification number of the wireless telephone 13 in the wireless transceiver 131.
Out via.

This signal is transmitted by the wireless connection device 12 of the control station in each wireless zone through the wireless transceiver 131 to the wireless telephone 1
The control unit 120 of each wireless connection device 12 receives the signal at a different level according to the wireless zone in which the wireless communication device 3 is located, encodes the reception level of the signal from the wireless telephone 13, and executes the control sequence of the wireless line connection file 125a. The transmission path with the wireless line connection device 11 is closed loop, and the position registration request signal, the identification number and the code of the reception level are transmitted to the control signal transceiver.
123, the signal is transmitted to the radio network controller 11 via the line interface 122, and the loop is opened.

Here, the reception level is, for example, 20 dB or less, 20 to 40 dB,
`` 00 '', `` 01 '', `` 1 ''
It is encoded into 2-bit data of "0" and "11".
If the data is encoded to 3 bits or more, the reception level becomes 8
Needless to say, it can be distinguished in more than stages.

When receiving the position registration request signal and the encoded data indicating the identification number and the reception level via the radio line interface 113, the control unit 110 of the radio line control device 11 decodes the received data and compares the reception level from each radio connection device 12 after decoding. I do.

The control unit 110 selects the location information such as the wireless zone of the highest reception level or the identification number of the wireless connection device 12, and stores the selected location information in the location information storage area of the subscriber file 125b.

If the compared reception levels are the same, the smallest number or the largest number, or the number of the wireless zone or wireless connection device 12 input first or last may be registered.

When the position registration is completed as described above, the control unit 110 reverses the line voltage and sends a position registration completion signal to the wireless connection device 12 that has received the signal of the maximum level. In this case, the position registration completion signal is not sent to wireless connection devices other than the wireless connection device that has received the signal of the maximum level. The wireless connection device 12 that has received the position registration completion signal converts this signal and the number of the wireless zone into a wireless signal, and sends the wireless signal to the wireless telephone 13.

The wireless telephone 13 sends a location registration completion signal to the handset 13.
The receiver or speaker of 2a reproduces the location registration completion sound or notifies the caller by flashing a light emitting diode or the like, and also outputs the response, that is, the identification number of the wireless zone of the wireless connection device 12 that has transmitted the location registration completion signal. Register in the wireless zone number file 138c.

Next, the wireless telephone 13 sends a position report confirmation signal to the wireless connection device 12, the wireless connection device 12 sends the position registration confirmation signal to the wireless line control device 11, and the wireless line control device 11 To revert.

Incidentally, the position registration request signal from the wireless connection device 12 to the wireless line control device 11 is, instead of sending a special signal,
The notification may be made by opening and closing the line loop. Also,
The position registration completion signal from the wireless line controller 11 to the wireless connection device 12 may also be notified by the inversion of the line voltage, or the tone signal or the tone signal may be sent directly to the wireless telephone 13 as a code signal. You may do so.

(2) Incoming Call to Radiotelephone 13 Next, the operation when an incoming call to the radiotelephone 13 via the radio line controller 11 will be described.

For example, when an incoming call arrives at extension 13X1 via the existing exchange 10,
The existing exchange 10 accesses the control unit 110 via the central office interface 111 that has received the radio line controller 11.

The control unit 110 sends the wireless telephone (1
The wireless zone where 3X1) is located is read out, and the identification number of the wireless telephone (13X1) and a call control signal are sent to the control station of the wireless connection device 12 located in the wireless zone. In this case, the control unit 110 controls the matrix switch 114 to control the wireless connection device 12 in the wireless zone.
Is connected to the radio line interface 113 corresponding to the control station and the line interface 111 that has received the call.

The control unit 120 of the wireless connection device 12 transmits the call control signal and the like to the line interface 122, the control signal transceiver 1
23, and generates a signal of the identification number of the wireless radio telephone (13X1) and a call control signal based on the control signal data of the radio line connection file 125a, and
Out via.

Upon receiving the signal of the identification number of the wireless telephone (13X1) and the call control signal via the wireless transceiver 131, the wireless telephone 13 receives the identification number and the wireless telephone ID file 138b.
Control unit 13 of the wireless telephone 13 that matches with the identification number of
0 turns on the transmission / reception unit 132, and the transmission / reception unit 132 generates a voice signal for calling based on a calling control signal from the wireless connection device 12.

Accordingly, the call control signal from the existing exchange 10 is sequentially changed in the form of a different signal.
The call is sent to the wireless telephone (13X1) via the 12 control stations, and when the wireless telephone (13X1) goes off-hook, a communication path between the calling telephone and the wireless telephone (13X1) is formed.

(3) Missed call In the above-mentioned incoming call, the radio telephone (13X1) moves out of the radio zone registered in the subscriber file 115b of the radio network controller 11, and the position registration button 135 of the radio telephone (13X1) is moved. Is not operated and the new wireless zone is not registered in the subscriber file 115b, the radio wave does not reach the radiotelephone (13X1) even if the radio connection device 12 sends the call control signal. Cannot call phone (13X1).

Hereinafter, the operation of the missed call according to the present invention will be described with reference to FIG.

As described above, for example, when an incoming call arrives at the extension 13X1, the radio circuit controller 11 reads the radio zone in which the radio telephone (13X1) is located from the subscriber file 115b, and controls the radio connection device 12 located in the radio zone. Transmits the identification number of the wireless telephone (13X1) and the call control signal to the station.

The control unit 120 of the wireless connection device 12 transmits the call control signal to the line interface 122 and the control signal transceiver 123.
, An identification number of the wireless radio telephone (13X1) and a call control signal are generated based on the control signal data of the radio line connection file 125a, and transmitted through the radio transceiver 121.

The control unit 110 of the radio circuit controller 11 is configured to control the control unit 110 when there is no incoming response signal from the radio telephone (13X1) within a predetermined time (for example, 1.6 seconds to 2 seconds) after the transmission of the call control signal.
A call control signal or the like is transmitted to the wireless connection devices 12 in all wireless zones in accordance with the absence calling program stored in the ROM 110.

Calls to all wireless zones are made at the same timing.

Figure 6 is a wireless connection device of the wireless zones Z _1, Z ₂ ~Z _n 12
A case where a call control signal or the like is transmitted to the (control station) at the same timing is shown.

Therefore, the wireless connection devices located in each wireless zone
12 sends a call control signal and the radiotelephone (13X1) stays within the service area of this radiotelephone,
A paging control signal and the like can be received.

In this method, since all the service areas are called at the same time, the desired wireless telephone can be called at an early stage.

In addition, this method may be provided as a service function for a specific predetermined wireless telephone, distinguished from a general wireless telephone. For example, it can be a service function for VIP.

Therefore, according to the above embodiment, the radio telephone 13 moves out of the radio zone registered in the subscriber file 115b of the radio network controller 11, and the position registration button 135 of the radio telephone 13 is not operated, The radio telephone 13 can be called even when the new radio zone is not registered in the subscriber file 115b.

The present invention also provides a location registration button 135 of the wireless telephone 13.
For example, the wireless connection device 12 transmits the position information, and the wireless telephone 13 intermittently turns on the power to prevent power consumption, and receives the position information. When the location information differs from the location information in the zone number file 138c, the present invention can also be applied to the case where the registered location information in the subscriber file 115b of the radio network controller 11 is rewritten.

If the radio telephone (13X1) responds by calling in all the radio zones described above, if the current location of the radio zone is rewritten to the subscriber file 115b of the radio network controller 11, a normal call is received at the next incoming call. A call can be made.

(4) Outgoing Call from Wireless Telephone 13 Next, the operation when a call is made from the wireless telephone 13 to an office line or another wireless telephone 13 will be described.

Hook switch 134 when wireless telephone 13 is off-hook
Is turned on, the control unit 130 generates a call signal based on the connection sequence of the wireless line connection file 138a and the control signal, and adds the identification number of the wireless zone in which the wireless zone is located in the wireless zone number file 138c, and performs wireless communication. It is transmitted via the transceiver 131.

The control unit 120 of the control station of the wireless connection device 12 in each wireless zone compares the identification number of its own wireless zone in the station data file 125b. A call response signal and a signal designating a communication channel are transmitted to the wireless communication device, and the wireless connection device is switched to the communication channel. When the control unit 130 of the wireless telephone 13 serving as a communication station sends a channel switching signal, the wireless connection device 12 Is the radio line controller 11
When the control unit 130 of the radio telephone 13 transmits an interference detection completion signal when there is no interference with the adjacent radio zone, the control unit 130 transmits a call signal to the radio line controller 11. Upon receiving the call signal, the radio line controller 11 sets the subscriber line to a closed loop and sends the call signal.

Next, the control unit 110 of the living line control unit sends a call response signal to the wireless connection unit 12 described above, and the voice control unit 124
And turn on the audio circuit activation signal.
To send to. The control unit 130 of the wireless telephone 13 turns on the transmission / reception unit 132 in response to the audio circuit activation signal.

Therefore, the dial tone transmitted from the existing exchange 10 to the wireless telephone 13 via the closed loop is reproduced as voice by the receiver of the handset 132a, and the caller can know the closed loop with the existing exchange 10.

Next, the control unit 130 of the wireless telephone 13
When a dial number is inputted from 13, a dial code is converted into a dial code, and a signal indicating the dial signal system set by the PB / DP switch 136 (for example, PB signal is “0”, DP
The signal is transmitted to the wireless connection device 12 with “1” added.

The wireless connection device 12 converts the dial code into a dial signal of the DP signal system or the PB signal system using a signal indicating the dial signal system, and sends the dial signal to the existing exchange 10 via the closed loop. The existing exchange 10 sends a ring-back tone to the wireless connection device 12 via the closed loop, and the wireless connection device 12 converts the ring-back tone into the wireless signal and sends it to the wireless telephone 13. When the call is answered, the call enters the call state.

According to the present invention, as is apparent from the above embodiment, if there is no response from the wireless telephone within a predetermined time, the wireless telephone simultaneously calls through all the wireless connection devices at the same time, so that the wireless telephone sequentially moves through the wireless zone. Even if the wireless telephone moves out of the wireless zone registered in the wireless network controller and the wireless telephone arrives before the wireless zone registered on the left This has the effect that it can be called reliably.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing one embodiment of a wireless telephone device according to the present invention, FIG. 2 is a detailed block diagram of each device of the wireless telephone device of FIG. 1, and FIG. FIG. 4 is an explanatory diagram of each file of the radio network controller of FIG. 2, and FIG.
FIG. 5 is an explanatory view of each file of the wireless connection device of FIG. 2, FIG. 5 is an explanatory view of each file of the wireless telephone of FIG. 1 and FIG. 2, and FIG. 6 is FIG. 1 and FIG. 6 is a timing chart for explaining the operation of the wireless telephone device. 11… Wireless line controller, 12… Wireless connection device, 13…
Radiotelephone, 110, 120, 130 Control unit 114 Matrix switch 115a System file 115b
Subscriber file, 115e …… Line connection file, 121, 131
…… Wireless transceiver, 125a, 138a …… Wireless line connection file, 125b …… Station data file, 138b …… Wireless telephone identification number (ID) file, 138c …… Wireless zone number file.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshihiko Shibata 4-3-1 Tsunashima Higashi, Kohoku-ku, Yokohama Inside Matsushita Communication Industrial Co., Ltd. (72) Mitsuo Sato 4-3-1 Tsunashima Higashi, Kohoku-ku, Yokohama-shi No. 1 Matsushita Communication Industrial Co., Ltd. (72) Inventor Yoshitoshi Murata 1-2356 Take, Yokosuka City Inside Telecommunications Network Second Research Laboratories, Nippon Telegraph and Telephone Corporation (72) Inventor Toshihiro Hara 5-chome, Minato-ku, Tokyo No. 33 No. 1 NEC Corporation (56) References JP-A-63-248232 (JP, A)

Claims (1)

(57) [Claims] 1. A plurality of wireless connection devices which are arranged in different wireless zones and perform wireless communication with a wireless telephone located in the wireless zone, storing data of the wireless zone in which the wireless telephone is located, and Calling the wireless telephone through the wireless connection device arranged in the wireless zone of the stored data, and if there is no response from the wireless telephone within a predetermined time, the wireless telephone through all the wireless connection devices And a wireless line control device for simultaneously calling simultaneously.