JP3400266B2 - Digital cordless telephone equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention enables call connection between a master unit and a slave unit belonging to a different master unit, and call connection between slave units belonging to different master units. In addition, the present invention relates to a digital cordless telephone device that enables a telephone call to be made via a parent device not belonging to the child device and a direct telephone call between the child devices.

[0002]

2. Description of the Related Art In recent years, cordless telephones have become widespread because of the convenience of making and receiving calls to and from a station line without having to run around a wired line. A cordless telephone is composed of a master unit that is connected to a central office line and a slave unit that is a wireless terminal attached to this master unit. Generally, the master unit has a wireless communication means and is a slave unit. A wireless line is established between the two to send and receive various control signals and data, and to send and receive audio signals, and to enable communication between the central office line and the slave unit via the master unit. There is.

In such a configuration, the master and slave units are
The system ID (CS-I
D) and an individual ID (P
S-ID) is set in advance, and when the system IDs of the master and the master match, a wireless line is established and communication is performed. As a result, normally, a slave unit of one master unit cannot be used as a slave unit of another master unit.

By the way, a digital cordless telephone apparatus for performing digital transmission has been developed as a cordless telephone due to its good sound quality. FIG. 15 shows a system configuration diagram of this digital cordless telephone apparatus.

In FIG. 15, PSTN is an analog public network, CS-1 and CS-2 are master units of a cordless telephone system, and are connected to this analog public network PSTN via a station line (subscriber line). ing.

The cordless handsets PS-1A and PS-1B are base units of the first cordless telephone device (hereinafter referred to as "first base unit").
It is a cordless handset that belongs to CS-1, and it is the first
Can be connected only to the parent device CS-1. In addition, cordless handset PS-2
A and the slave unit PS-2B are slave units belonging to the master unit (hereinafter, referred to as the second master unit) CS-2 of the second cordless telephone device, and the second master unit CS-2 via the wireless line. It can be connected only to -2.

[0007] Further, between the slave units belonging to the same master unit, it is possible to talk by controlling the connection of the wireless line via the master unit to which the slave unit belongs or directly between the slave units.

Here, the wireless line set up between the master unit and the slave unit is composed of a call channel for transmitting and receiving voice and data and a control channel for setting this call channel.

In such a configuration, the first parent device CS
-1 and the second parent device CS-2 each transmit a logical control channel (LCC) via the control channel at their own timing.
The information of H) is transmitted.

This LCCH includes a CS-ID set for each master unit, and each slave unit compares the received CS-ID with the CS-ID stored by itself, If they match, the data is regarded as valid and is received, and if they are different, this data is invalid and is discarded.

The slave unit uses this logical control channel (LCCH).
If the CS-ID of the parent device to which it belongs is included when this information is received, this logical control channel (LCC
It synchronizes with the information of H), and thereafter, this LCCH is received and the incoming call for itself is awaited.

Further, when a call is made from the slave unit in the standby state, by using the CS-ID of the master unit to which the slave unit belongs, a call signal is transmitted to the master unit through the control channel. , You can start the call by setting the call channel on the base unit side.

Therefore, even if the calling signal from the slave unit is received between the master unit and the slave unit having different CS-IDs, the CS-I
If D does not match, the data is discarded on the master unit side, and the slave unit cannot make a call. Therefore, for example, the child device PS belonging to the first parent device CS-1
-1A is configured so that it cannot connect to the second master device CS-2 such as making a call or receiving a call.

Similarly, in the case of a direct call between the handset units, the handset unit on the calling side uses the CS-ID to send a call signal to the handset unit on the called side, and However, if the CS-ID of the called machine is different from the CS-ID of the parent machine to which the called machine belongs, the called side will discard the data. -Direct communication between handset units was not possible unless the handset units had IDs.

Therefore, the child machine PS is the parent machine CS to which it belongs.
There is a problem that the system cannot be expanded in two-family homes, offices, etc. because it is not possible to make outgoing and incoming connections with other child devices other than the parent device CS other than the above and the child device of the parent device to which it belongs. In addition, authorized people cannot realize the service function of using the child device PS anywhere, and there is a problem in terms of serviceability.

In addition, each slave unit PS belonging to a different master unit CS has a problem in that it is not possible to directly communicate between the slave units and the system cannot be expanded in the same manner as described above, and there is a problem in terms of serviceability.

[0017]

As described above, in the conventional digital cordless telephone apparatus, the slave unit PS cannot make outgoing and incoming connections with the master unit CS other than the parent unit CS to which it belongs, so that the two-family home or Even if you add more cordless phones by increasing the number of lines in offices, etc., it is not possible to connect between slave units belonging to different master units or between different master units, so the significance of system expansion is diminished. There was a problem called.

Further, the respective slaves PS belonging to different masters CS cannot directly communicate with each other, so that the master and the slaves, or the slaves are located within the wireless communication service area. Even if they do, they cannot connect to each other, and if multiple cords are installed and cordless telephone devices are installed in the same home or workplace, the installation system will There is a problem that the service range cannot be expanded because the service is limited to the service used within the cordless telephone device.

Therefore, the object of the present invention is to
Enables call connection between a master unit and a slave unit that belongs to another master unit, or call connection between slave units that belong to different master units, and a parent that is not affiliated with the slave unit It is an object of the present invention to provide a cordless telephone device capable of making a telephone call via a machine or directly making a telephone call between child machines belonging to different parent machines.

[0020]

In order to achieve the above-mentioned object, the present invention provides a master unit connected to a wired line and a slave unit that is connectable to the master unit and the master unit. First, in a cordless telephone device that enables connection control between a specific parent device and a child device by collating a system ID that is commonly set with the child device, first, a new connection is possible. The common system ID, which is a system ID common to the parent machine and the child machine, is additionally registered.
Use to enable setting of wireless line.

Secondly, in the master, it is desired to insert its own system ID into the first transmission area of the control information transmitted to the slave and to newly connect to the second transmission area. By inserting the additional system ID which is the system ID of the child device belonging to a different parent device CS, the child device transmits the control information to the system ID of the parent device (for this parent device CS, its own system ID). , Or an additional system ID (which is the own system ID for a child device belonging to a different parent device CS),
Allows you to set the wireless line.

Thirdly, the slave unit has its own system I.
In addition to D, by additionally registering an additional system ID, it becomes possible to receive not only the master unit to which it belongs but also the control information signal transmitted by the master unit having this additional system ID. It is also possible to set up a wireless line with a base unit having a system ID.

Fourthly, the system ID of the called side handset is registered in the calling side handset, or the system ID of the calling side handset is registered in the called side handset as an additional system ID. By setting it, it becomes possible to directly communicate between the slave units even between the slave units belonging to different master units.

In the case of the first configuration, in addition to its own system ID, each of the slaves belonging to different masters that are going to newly connect to the master will have a common system ID common to other masters. Can be additionally set.

Then, the common system ID is added to the control information.
Insert and send.

Therefore, it becomes possible to set the wireless line between the master unit and the slave unit whose system IDs are different from each other.
Incoming call becomes possible.

In the case of the second configuration, in addition to the system ID of itself, the system ID of the child device to be newly connected can be additionally set in the parent device.
The first control information transmitted from the master unit to the slave unit
The own system ID is inserted in the second transmission area, and this additional system ID is inserted in the second transmission area. Therefore, it does not belong to the parent machine (System-I
By differently registering its own system ID in advance to the master unit to which it wants to connect, the slave unit can synchronize with the second transmission area of the control information.
The child device PS can be connected to the parent device CS other than the parent device CS to which the child device PS belongs.

Further, in the case of the third structure,
The system ID of another base unit that you want to connect to can be registered additionally. Therefore, in the child device, if the system ID in the first transmission area of the received control information does not match the ID of the parent device to which it belongs, the child device switches to the additionally registered additional system ID and tries to receive, A wireless line can be set between the master unit and the slave unit by connecting to a desired master unit other than the regular master unit.

Further, in the case of the fourth configuration, in the case where direct communication between the handset units is performed between the handset units to which different base units belong, in addition to the CS-ID of the own base unit, the other party to be connected By additionally registering the CS-ID of the other side, when the direct call between the handset units is made and a call is made using its own CS-ID, and if there is no response, the newly added party of the other party is registered. C
Since the call using the S-ID is performed, it becomes possible to directly communicate between the slave units even between the slave units having different CS-IDs.

[0030]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) First, Embodiment 1
As a result, by setting a system ID (CS-ID) of a slave unit that belongs to another master unit to be newly connected to a certain master unit side, the master unit belongs to one master unit and another master unit. An example of a system that enables connection with a slave unit that is operating will be described.

The system configuration is shown in FIG.
Since it is the same as, the description will be omitted.

[Configuration Example of Handset PS] First, the configuration of the handset will be described.

FIG. 1 shows a slave unit PS in the system of the present invention.
FIG. 1 is a system diagram as one embodiment of the present invention, in which 1 is an antenna,
Reference numeral 2 is a wireless unit, 3 is a modem unit, 4 is a TDMA unit, 5 is a calling unit, 6 is a control unit, 7 is an operating unit, 8a is a transmitting unit for converting voice into a voice signal, and 8b is a voice signal. The receiving section for outputting, 9 is a memory section, and 10 is a sounder for generating various signal sounds.

The radio section 2 is composed of a switch (SW) 201 for temporally switching a transmission / reception system, a reception section 202, a transmission section 203, a synthesizer 204, and an oscillator 205. The receiving unit 202 frequency-converts the radio frequency signal received by the antenna 1, amplifies the signal to extract a signal component, and outputs the signal component to the modem unit 3.
Further, the transmission unit 203 puts the transmission output signal input from the modem unit 3 on a carrier wave and transmits it via the antenna 1. The synthesizer 204 obtains a required frequency from the oscillation frequency of the oscillator 205 and gives it to the receiving unit 202 and the transmitting unit 203.

The modem section 3 comprises a demodulation section 301 and a modulation section 302. The demodulation unit 301 is the wireless unit 2
The intermediate frequency signal output from the receiving unit 202 is demodulated and output to the TDMA unit 4. The modulator 302 uses the TDM
The transmission signal output from the A unit 4 is subjected to quadrature phase modulation, for example, π / 4 shift QPSK (Quadratur Phase Shift Ke).
ying) modulation, and this is transmitted to the transmission unit 203 of the wireless unit 2.
To give to.

The TDMA unit 4 includes a TDMA decoding unit 40.
1 and a TDMA encoding unit 402. The TDMA decoding unit 401 extracts a signal according to the TDMA (Time Division Multiple Access) communication method output from the demodulation unit 301 of the modem unit 3 from a time slot assigned in advance, and the TDMA encoding unit 402.
Is a signal output by the PCM modulation from the call section 5,
The signal is inserted into a time slot assigned in advance to a signal according to the DMA communication method and is output to the modulation section of the modem section 3.

The call section 5 is an ADPCM transcoder 5
01 and a PCM codec 502. Under the control of the control unit 6, the call unit 5 PCM-modulates the voice signal from the microphone 8a to perform TDM.
This is given to the A section 4, the demodulated PCM signal from the TDMA section 4 is converted into a voice signal and given to the speaker 8b.

The memory section 9 is for holding data, and is provided with a personal identification number storage area for holding various personal identification numbers. As shown in FIG. 3 (c) or (d), this personal identification number storage area portion has a system ID (CS-ID), which is a personal identification number stored as an initial setting for indicating its own parent device. An individual ID (PS-ID), which is a personal identification number for identifying itself, and an extension number, option information, a telephone number, a business code, etc., which the parent device assigns to the child device are stored.
Further, in the personal identification number storage area portion, an empty area is set in order to allow an incoming / outgoing call from other master devices other than the master device to which the user belongs. In this empty area, a common system ID that is a common ID with other base units
Further, the system ID of another parent device and the PS calling number of the child device belonging to the other parent device can be additionally registered by a predetermined input operation.

The control unit 6 controls each component, and in addition to various controls required for transmission / reception, a secret code for collating a secret code required for connection control between a master unit and a slave unit. Match detection function unit 6a, PIN code memory control function unit 6
b, it has a personal identification number input / identification function section 6c.

The personal identification number match detection function unit 6a detects various matches by collating various personal identification numbers stored in the personal identification number storage area in the memory unit 9 with various received personal identification numbers. The personal identification number memory control function unit 6b stores or reads personal identification number information in the personal identification number storage area in the memory unit 9. The personal identification number input / identification function unit 6c converts the personal identification number input from the function keys 7a and the ten-key pad 7b of the operation unit 7 into a personal identification number storage area, converts the personal identification number into a binary code, and sets a predetermined bit according to the type. This is for storing a few minutes in a personal identification number memory (personal identification number storage area) in the memory unit 9.

The operation section 7 is provided with a function key 7a and a ten-key 7b for performing operations such as making a call, answering an incoming call, inputting a dial number, and ending a call. Also, the function key 7a,
The key 7b is the CS-ID, PS-ID, and PS
It is also used for setting and registration of call number.

[Configuration Example of Base Unit CS] FIG. 2 is a schematic block diagram showing the configuration of the base unit CS as an embodiment of the system of the present invention. In the figure, 11 is an antenna, 1
2 is a radio unit, 13 is a modem unit, 14 is a TDMA unit, 15
Is a memory unit, 16 is a control unit, 17 is an operation unit, and 18 is an interface unit for interfacing with a line. Further, a handset is connected to the interface section 18 so that a call from the master unit to the wired line and an incoming call can be made. Of course, this handset is not an essential configuration, and a configuration without this handset may be used.

Here, the radio unit 12, the modem unit 13, the TD
The MA unit 14 has the same configuration as that of the slave unit PS, and thus the description thereof is omitted.

Under the control of the control unit 16, the interface unit 18 sends a voice signal and a control signal from the local line to the PCM.
The signal is supplied to the TDMA unit 14 and the decoded signal from the TDMA unit 14 is converted to a PCM signal and supplied to the station line. The interface section 18 includes ADPCM transcoders 181 and 182, a PCM codec 183, and the like.
184, cross point switch 185, office line circuit 18
It consists of 6 etc., and interfaces with the station line by the station line circuit. The crosspoint switch 185 is also connected to the handset.

The memory section 15 is for holding data. Here, in the personal identification number storage area,
As shown in FIGS. 3 (a) and 3 (b), the system ID (CS-ID) of its own, which is set as an initial setting, is set for each child device in order to identify the child device belonging to itself. Each personal identification number (PS-ID) and other personal identification numbers of the cordless handset that is stored are stored in the personal identification number storage area. An empty area has been set to allow it to be done. In this area, additional registration of a common system ID that is a system ID common to other masters, a system ID of another master, and a PS-ID of a slave that belongs to another master is a predetermined input operation. Is made possible by.

The control unit 16 controls each component, and performs necessary control accompanying transmission and reception. The control unit 16 also includes a personal identification number match detection function unit 16a, a personal identification number memory control function unit 16b, and a personal identification number input identification function unit 16c.
have.

Of these, the password coincidence detection function unit 1
Reference numeral 6a is for detecting a match by collating the personal identification number stored in the personal identification number storage area of the memory unit 15 with the received personal identification number. PIN code memory control function unit 16b
Is for storing or reading the personal identification number information in the personal identification number storage area of the memory unit 15. The personal identification number input / identification function unit 16c converts various personal identification numbers input from the operation unit 17 and stored in the personal identification number storage area of the memory unit 15 into a binary code, and stores a predetermined number of bits according to the type. This is for storing in the personal identification number storage area of the section 15.

The operation section 17 is provided with function keys 17a and ten keys 17b. Further, by operating the function key 17a or the ten-key 17b, it is possible to set and register the various personal identification numbers. In addition, input regarding calling and receiving calls is also performed via the handset connected to the master unit. (Explanation of wireless line) In the system of the present invention, the wireless line between the master unit and the slave unit transmits and receives a control channel for transmitting and receiving control information for synchronizing between the master unit and the slave unit, and transmitting and receiving a voice signal and a data signal. It consists of a call channel to

The base stations CS-1 and CS-2 transmit using the LCCH superframe including system information and the like via the control channel. Here, the structure of the LCCH superframe is shown in FIG.

As shown in FIG. 4, the LCCH superframe is, for example, intermittently transmitted at a cycle of 150 ms and hand-woven, a unidirectional first broadcast channel BCCH (A), and a point-to-point transfer of information necessary for call connection. (Point-
to-point) bidirectional dedicated cell channel SCCH, paging channel PCH1, unidirectional second broadcast channel BCCH (B), bidirectional dedicated cell channel SCC
H, the bidirectional individual cell channel SCCH, and the paging channel PCH2 are arranged in this order.

Here, BCCH (B) is an area released to the operator as an option area of the LCCH superframe, and the option that the operator can freely use is the standard of the digital cordless telephone device. RCR STD-28. Therefore, in the present embodiment, the ID of the child device belonging to another parent device that is desired to be connected and the system ID of the parent device are
By inserting and transmitting the system ID of the other party to be newly connected as the CCH (B), it is possible to connect to the slaves belonging to different masters.

FIG. 5 shows the message format of BCCH.

As shown in FIG. 5, the BCCH is, for example, 6
The data signal is a burst data having a width of 25 μs, and includes a channel identifier portion (CI) 21a, a transmission identification code portion (CS-ID) 22a, and an I (BCCH) information element portion 2.
3a, a CRC bit part 24a.

The channel identifier portion 21a is a channel identifier indicating that this channel is a BCCH, and a code of a certain fixed pattern is inserted.

The calling identification code part 22a is a part in which the CS-ID of the parent device that has transmitted this BCCH is stored, and the information element part 23a is a part in which information such as a desired request or instruction is stored. The CRC bit part 24a is a part containing an error correction code.

Here, C included in the calling identification code portion 22a
The S-ID is different between BCCH (A) and BCCH (B), and in the case of BCCH (A), the self-registered CS-ID is inserted and the BCC
In case of H (B), newly added additional CS-I
D will be inserted. Inserting this CS-ID
The personal identification number memory control function unit 16b of the control unit 16 reads out the personal identification number storage area of the memory unit 15.

The uplink SCCH is shown in FIG. 6 (a), and the downlink SCCH is shown in FIG. 6 (b). In addition, downhill is base unit C
This is information transmitted from the S side to the slave unit PS side, and the upstream is information transmitted from the slave unit PS side to the master unit CS side.

As shown in FIG. 6A, the upstream SCCH has a channel identifier section (CI) 31a, a destination identification code section (CS-ID) 32a, and a source identification code section (PS) 33a.
-ID), 34a is composed of an information element part, and 35a is composed of a CRC bit part which is an error correction code.

Here, the channel identifier part (CI) 31a
For example, a code of a predetermined pattern such as a constant code ("1010" in binary notation) is inserted. Further, the system ID is inserted in the destination identification code section (CS-ID) 32a, and the PS-ID is inserted in the originating identification code section (PS-ID) 33a.
It is used to check the destination and destination when transmitting and receiving CCH.

As shown in FIG. 6B, the downlink SCCH has a channel identifier part (CI) 41a, a calling identification code part (CS-ID) 42a, and a destination identification code part (PS-ID).
43a, an information element section 44a, and a CRC bit section 45a.

FIG. 7 shows the structure of the paging channel (PCH) in the LCCH message format. In FIG. 7, 51a is a channel identifier (CI), 52
a is a calling identification code part (CS-ID is inserted), 53a
Indicates an information element part, and 54 indicates a CRC bit part.

Here, in the channel identifier (CI) 51, a constant code indicating that this signal is a PCH (for example, "1011" in binary notation) or the like is inserted in a fixed pattern.

(Operation of Device of Embodiment 1) Next, as an operation example in the system of the present invention having such a configuration, a call connection from a certain master to a slave belonging to another master will be described. Here, as an example, an operation in the case where the second parent device CS-2 makes a call to the child device PS-1A for the first parent device and is connected will be described.

Here, in order to simplify the explanation, the system ID of the first parent device CS-1 is "CS (1) -ID",
The slaves PS-1A and PS-1B belonging to the first master
The individual IDs of "PS (1A) -ID" and "P
S (1B) -ID ". Similarly, the second base unit CS-
The system ID of 2 is "CS (2) -ID", and the individual IDs of the child devices PS-2A and PS-2B that belong to the second parent device
"PS (2A) -ID", "PS (2B) -ID"
As described below.

As an initial setting, the first parent device CS-
1 is the system ID “CS (1) -ID” and the identification ID of the cordless handset belonging to itself is “PS (1A) -I”.
"D" and "PS (1B) -ID" are set. In addition, the slaves PS-1A and PS- that belong to the first master
"PS (1A) -ID" is the individual ID of the user in 1B.
(Or “PS (1B) -ID”) and “CS (1) -ID” which is the system ID of the parent device CS-1 are set.

Similarly, the second master device CS-2 has "CS
(2) -ID "," PS (2A) -ID "," PS
(2B) -ID "is set, and the child device belonging to the second parent device has" PS (2A) -ID "(or" PS (2B) -ID ")," CS ( 2) -ID "is set.

[ID registration method] Various personal identification numbers (CS-ID, PS-ID) serving as a collation key for enabling connection between a certain parent machine and a child machine belonging to a different parent machine.
Other settings).

First, the system ID "CS" of the child device PS-1A to be newly connected is added to the second parent device CS-2.
(1) -ID "and the individual ID of the child device PS-1A," P "
Additional registration of "S (1A) -ID" is performed.

The individual ID of the cordless handset PS-1A is 7 digits (7 digits in decimal), 4 bits 1
11 digits (11 digits in decimal) are input as the system ID of the first parent device CS-1.

In the control unit 16, the secret code memory control function unit 1 is operated by the function of the secret code input identification function unit 16c.
6b through the child device PS-1A for the first parent device, and the first
The personal identification number (personal identification code) of the parent device CS-1 is stored as a binary code in the personal identification number storage area of the memory unit 15.

When such additional registration of the ID is performed, the parent device CS-2 has the BCCH including the "CS (2) -ID".
BCCH including (A) and "CS (1) -ID"
(B) will be transmitted. Therefore, PS-
1A can receive BCCH (B) including a system ID equal to its own system ID, and becomes ready for an incoming call or an outgoing call via the master device CS-2.

[Calling from Slave Unit to Master Unit] Next, in this state, a connection by calling from the slave unit to a master unit to which the slave unit belongs will be described. Here, the slave unit PS-1A for the first master unit
A case will be described as an example where a call is made from the user to the second master device CS-2, which is completely different from the other device.

First, when a call is made in the handset PS-1A, uplink SCCH data, which is a call signal, is created.

In this case, the self identification system ID "CS (1) -ID" of the handset PS-1A is assigned to the destination identification code section (CS-ID) 32a of the upstream SCCH data and the originating identification code section (PS-ID). ) 33a has an individual ID of the cordless handset PS-1A
"PS (1A) -ID" as I (SCCH) information element 3
A message "link channel establishment request" is inserted in 4a.

When the second master unit CS-2 receives the calling signal (uplink SCCH) from the slave unit PS-1A, the control unit 1
6 checks the content of the identifier part (CI) 31a, and recognizes that the received signal is an uplink SCCH.

Next, the personal identification number match detection function unit 16a of the control unit 16 stores the system ID inserted in the destination identification code unit (CS-ID) 32a in the personal identification number storage area of the memory unit 15. Your own system ID "CS
(2) -ID ". If it does not match the own system ID, the additionally registered system ID stored in the personal identification number storage area in the memory unit 15
“CS (1) -ID” which is “1” is read out, compared, and collated.

In this case, since matching is detected, the individual IDs are collated next. Calling identification code part (PS-I
D) The individual ID inserted in 33a and the individual ID "PS" of the handset PS-1A additionally registered in the personal identification number storage area
(1A) -ID "is read out and compared and collated. in this case,
Since a match is detected, the second parent device CS-2 recognizes that the calling signal is from the child device PS-1A. Then, the control unit 16 controls the information element 3 in the uplink SCCH.
4a is decoded to recognize that there is a request for establishing a link channel from the handset PS-1A.

Next, the control unit 16 in the second parent device CS-2
Creates downlink SCCH data shown in FIG. 6 (b). At that time, as in the case of the uplink SCCH data, “CS (1) -ID” is set in the calling identification code section (CS-ID) 42a.
The calling identification code section (PS-ID) 43a contains “PS (1A)
Insert "ID". Also, a message "link channel allocation" is set in the information element section 44a.

The second base station CS-2 puts the downlink SCCH data thus created on a predetermined slot timing of the LCCH superframe and transmits it as a downlink SCCH.

When the handset PS-1A receives the downlink SCCH, the control unit 6 of the handset PS-1A, in the same manner, hereafter, the identifier section 41a, the calling identification code section (CS-ID) 42a, the calling identification code section. Read (PS-ID) 43a to find the system ID
And collate the individual ID. In this case, system I
"CS (1) -ID" as D and "P" as individual ID
Since S (1A) -ID "is included, ID match is detected. Then, since the collation results match, the control unit 6 decodes the information element portion 44a in the downlink SCCH and recognizes TCH (communication channel) allocation information from the parent device CS-2.

The second master unit CS-2 and the first master unit slave unit PS-1A respectively switch the transmission unit and the reception unit to the TCH (communication channel) designated by the master unit CS-2. .

Next, a dial signal is transmitted from the slave unit PS-1A, and thereafter a predetermined control sequence (for example, RC
Communication is performed in accordance with the control sequence defined in R STD-28), and outgoing connection becomes possible.

(Incoming Call) Next, a case will be described in which an incoming call to the child device PS-1A is performed via the second parent device CS-2.

First, from the wired line, the child device P for the first parent device
When the second master device CS-2 receives the incoming call to S-1A, the second master device CS-2 sends out the paging channel (PCH) shown in FIG.

Here, the ID inserted in the PCH is "CS (1) -ID" which is the system ID of the child device PS-1A so that the child device PS-1A can receive it.

On the other hand, the child device P which received this PCH data
In S-1A, the control unit 6 determines that the paging channel (PCH) is received by the control unit 6 checking the identifier unit 51a in the received PCH under the same control as above in the standby state. Next, the control unit 6 inserts the CS-I inserted in the calling identification code unit (CS-ID) 52a in the received PCH.
D is compared with its own CS-ID stored in the secret code storage area in the memory section 15.

As a result of this comparison, since the system IDs match, the control unit 6 of the handset PS-1A further decodes the information element 53a of the received PCH and recognizes that there is an incoming call from the base unit CS-2. .

Next, the control unit 6 of the handset PS-1A creates and transmits the uplink SCCH data in the same manner as in the case of making a call. Then, the master unit CS-2 side receives the uplink SCCH from the slave unit PS-1A, performs the same matching and match detection as in the case of calling, and when the match is detected, creates the downlink SCCH as described above. And send.

As in the case of the above-mentioned calling, the cordless handset PS-1A
Uplink SCCH (link channel establishment request) transmitted by
And the downlink SCCH transmitted by the master device CS-2 in response to this
Since the PIN numbers for (Link channel allocation) also match,
Complete the establishment of the link channel.

After that, the master unit CS-2 and the slave unit PS-1A
Shifts to the TCH (communication channel) and the cordless handset PS-1
A produces a ringing tone. When the user responds to the ringing tone, a predetermined control sequence (for example, communication protocol RCR
Control sequence described in STD-28) communication,
The call starts.

As described above, in the above embodiment, the parent device C
LCCH which is a logical control channel from S side to slave unit PS side
When transmitting the super frame, the master device CS sends its own C
BCC, which is a conventional standard broadcast channel for sending S-ID
In addition to the conventional method of sending H (A) at the beginning of the LCCH superframe, the optional area of the LCCH superframe is used to specify the CS-ID of the slave unit that belongs to another master unit to which connection is desired. BCCH to send
By newly providing (B) and sending this, it becomes possible to connect a certain master unit to a slave unit for another master unit.

(Embodiment 2) Next, a system ID common to both the master unit side and the slave unit side is set, and by using the common system ID, a certain master unit and other master units are set. An embodiment will be described which enables a telephone call with a child device to which the user belongs.

The common system ID is a common system I common to a plurality of parent machines as one group.
D is assigned in advance. Here, as a method of grouping the parent devices, one group may be set for each home or office where a plurality of parent devices exist, or for a parent device installed outdoors, the parent of a certain operator may be used. All machines may be in one group, or all parent machines in a specific area may be in one group. Further, a plurality of groups having different sizes may be provided in a hierarchical manner, and any configuration may be divided into groups as necessary.

Then, this common system ID is registered in both the master unit side and the slave unit side by the same method as in the first embodiment. In this case, the common system ID “CS
(Common) -ID "and the" PS-ID "of the child device that can be newly connected to this parent device are additionally input. In addition, at least the common system ID “CS (common) -ID” that has been abruptly registered in the parent machine is additionally registered in the child machine side.

Then, the unidirectional second broadcast channel BCCH of the LCCH superframe described in FIG.
"CS (common) -ID" is inserted in (B) and transmitted.

Hereinafter, the parent device CS and the child device PS send and receive various signals in which "CS (common) -ID" is inserted in the same manner as in the first embodiment. It is possible to make a call and receive a call with the child device belonging to.

(Third Embodiment) Next, as a third embodiment, the parent device CS-1 intermittently transmits only the broadcast channel BCCH (A) of the LCCH superframe, and the child device PS-2A (belonging to a different affiliation) A method of realizing a connection with or) will be described.

FIG. 8 shows the master unit CS- in the present embodiment.
1 shows an LCCH superframe transmitted by No. 1. The LCCH superframe transmitted by the base unit is different from that of the first embodiment. In the base unit CS-1, as shown in FIG. 8A, BCCH (1), SCCH, SCCH, PCH1,
The configuration is SCCH, SCCH, PCH2, BCCH (1), and only one type of BCCH is transmitted. Further, as shown in FIG. 8 (b), the master device CS-2 has BCCH (2), SCCH, SCCH, PCH1,
The configuration is SCCH, SCCH, PCH2, BCCH (2) .... Here, BCCH (1) is the base unit CS-1
BCCH (A) and BCCH (2) are for the master device CS-2.

In this embodiment, as in the first embodiment, B
Since CCH (B) is not transmitted, the base unit CS-1 is
The system ID is "C" which is its own system ID.
All that is required is to register only "S (1) -ID". However, a child machine (child machine PS-
To enable connection with 2A (or B)), additional registration of the individual ID of the slave unit is required. On the other hand, for the cordless handset PS-2A (or B) that can be newly connected, in addition to the system ID "CS (2) -ID" of the parent device to which it belongs, another parent device that wants to be connected By additionally registering "CS (1) -ID", which is the system ID of, the wireless line can be connected.

FIG. 9 shows the storage state of the personal identification number storage area portion of the memory portions 9 and 15.

Here, FIG. 9A shows the first master unit CS-1.
9 (b) shows the storage state of the second master device CS-2, and FIG. 9 (c) shows the slave device P belonging to the first master device CS-1.
FIG. 9D shows the storage state of S-1A or PS-1B, and FIG. 9D shows the slave unit PS-2A or PS- belonging to the second master unit CS-2.
2B shows a storage state of 2B.

Based on this premise, the operation when the child device PS-2A (or B) to which the parent device CS-2 belongs communicates with another parent device CS-1 will be described with reference to FIG.

Now, the base unit CS-1 uses the function of the control unit 16 to assign the self-ID "CSCH" to the BCCH (A).
(1) -The LCCH superframe carrying "ID" is transmitted and folded, and the master device CS-2 uses the function of the control unit 16 to set the self-ID "CS (2)-" to BCCH (A).
It is assumed that the LCCH superframe carrying "ID" is being transmitted.

Here, when the power supply of the slave unit PS-2A is turned on or the normal mode is switched (step S
41), the slave unit PS-2A waits for reception of BCCH (2) including "CS (2) -ID", which is its own regular system ID, by continuous reception (step S42).

Here, if the BCCH (2) transmitted from the parent device CS-2 to which it belongs can be received, the process proceeds to step S44, and intermittent reception is performed at the timing designated by BCCH (2). It will be in a standby state.

When BCCH (2) cannot be received,
In step S45, it is monitored whether or not a predetermined time has elapsed. If the predetermined time has elapsed, the process proceeds to step S46, and "CS
(1) -BCCH (1) from the base unit containing the "ID"
To switch to waiting for reception. In step S47, B
When CCH (1) cannot be received, step S48
It is monitored whether or not the predetermined time has elapsed, and if the predetermined time has elapsed, the process returns to step S42 and is repeated thereafter.

In step S47, BCCH (1)
Is received, the process proceeds to step S49, and the handset P
The BCCH (1) sends a registration request for the "PS (2A) -ID", which is the individual ID of S-2A, and a request for assigning the extension number.
To the parent device CS-1 which is the transmission source of.

In step S50, the master unit CS-1 sets an extension number for the slave unit PS-2A, and sets "PS" in the empty portion of the PS-ID registration area of the memory unit 15.
(2A) -ID ", and the set extension number is registered. Then, in step S51, the parent device CS-1 determines that the child device P
A response signal (ACK) is transmitted to S-2A.

Through the above operations, the master device CS-
1, both the registration of PS-2A cordless handset PS-2
2A responds to an incoming call from the master device CS-1,
Calls can be made via -1.

At this time, it may be instructed to receive any number of groups of PCHs (one-way paging channels that notify the same information (incoming information, etc.) from the parent device CS to the child devices PS). Alternatively, BCCH (A) may be instructed in advance as to what group the child devices PS that belong to the parent device CS-1 and to what group the child devices that belong to another parent device.

Thereafter, the handset PS-2A (or B) enters the intermittent reception mode under the control of the control unit 6 and functions to receive the PCH to be received by itself, and display it on the display of the handset. Turn off a certain out-of-service display (display indicating that you are out of the service area). With this, outgoing,
Incoming calls are possible (step S51 in FIG. 10).

It should be noted that the child device PS-1 to which the parent device CS-1 belongs
When A (or B) communicates with another base unit CS-2,
In the above description, the parent device CS-1 is replaced with the parent device CS-2,
The operation is the same by replacing the child machine PS-2 with the child machine PS-1.

It should be noted that the slave unit PS- after the allocation and the additional registration
The memory contents of 1A (or B) are as shown in FIG. 9 (c), and the memory contents of the parent device CS-2 are as shown in FIG. 9 (b).

As described above, in the second embodiment, the system ID of another master unit (a master unit that does not belong to itself) to be connected to the slave unit.
By additionally registering, the system ID of the parent device to which the child device belongs is inserted in the child device, BCCH (A).
System of the parent machine to which it belongs
When the BCCH (A) in which D is inserted is not received, the received BCCH is switched to the reception of the BCCH (A) in which the system ID of another master unit additionally registered is inserted.
The system ID of (A) is collated.
An S-ID registration request is sent to the above-mentioned outside parent device that sent the LCCH superframe using SCCH, and P
The S-ID is registered and the extension number is assigned. As a result, the above-mentioned outside parent machine receives the received P
If the S-ID is different from the pre-registered PS-ID, register the PS-ID that is the cordless handset identification code in the empty portion of the PS-ID registration area in its own memory unit,
Since a vacant extension number is assigned, the extension number is used to enable connection with a child device that does not belong.

Therefore, the LCCH transmitted from the base unit side
It is possible to enable connection between the parent device and a child device that does not belong to the parent device without changing the signal format of the super frame.

(Fourth Embodiment) Next, the third embodiment will be described.
A modified example will be described as a fourth embodiment. Embodiment 4
Is the same as the second embodiment described above in the third embodiment.
Common system ID common to multiple masters, as in
Is set, and the common system ID is additionally registered on both the master side and the slave side. Also in this fourth embodiment, it is possible to enable the connection between the parent device and a child device not belonging to the parent device.

In this case, as the operation on the master side, as in the case of the second embodiment, its own CS-ID and common CS-ID.
The ID is transmitted with the configuration shown in FIG. On the contrary,
Similar to the flowchart in FIG. 10, the operation on the slave unit PS side attempts to receive the control signal in which its own CS-ID is inserted in the operations of S42 to S45, and if the control signal cannot be received, S
"Common system I" additionally registered in the operations of 46 to S48
The operation is to receive the control signal in which "D" is inserted. Therefore, even if the CS-IDs of the parent device and the child device are different, by sending and receiving the control signal in which the "common system ID" is inserted, the operation of calling and receiving can be performed.

(Fifth Embodiment) In the above-described embodiments, the connection between a certain master unit and a slave unit for another master unit is possible. By the way, in the digital cordless telephone device, it is also possible to make a direct call between the handset units without making a call through the base unit. Next, an operation in the case of making a direct telephone call between handset units between handset units belonging to different base units will be described as a fifth embodiment.

In the present embodiment, as an example, from the child device PS-1B belonging to the first parent device CS-1, to the second parent device C.
A case will be described where a direct call is made between the handset units to the handset unit PS-2B belonging to S-2.

First, since the basic structure of each slave unit is the same as the structure used in the first to fourth embodiments, the description thereof will be omitted.

Next, the additional registration of the ID for enabling the connection between the slaves belonging to different masters will be described. First, the system ID “CS (2) -ID” of the partner's handset PS-2B and the individual ID “PS (2B) -ID” of the handset PS-2B are additionally registered in the handset PS-1B. Similarly,
The child machine PS-2B also has the system ID "CS (1) -ID" of the partner child machine PS-1B and the individual ID "PS (1B)".
-ID "is additionally registered. The method of additional registration of these IDs is the same as in the case of the first to fourth embodiments.
Input is performed using both the function keys 7a and the ten keys 7b of the operation unit 7 for both the S-1B and the handset PS-2B.

Here, for the additional registration of this ID, it is desirable to input the system ID, the individual ID, and the PS call number ID to both slave units, but at least for one slave unit, If the additional registration of the ID is performed, the call can be made from the person who performed the additional registration.

The direct call control sequence between the handset units according to the present embodiment will be described with reference to FIG.

First, the users of the calling side handset PS-1B and the called side handset PS-2B respectively set the inter-handset direct call mode to be in a standby state.

Here, the slave unit PS-1B to the slave unit PS-2
When the call operation of the direct call between the handset is performed on B,
The handset PS-1B transmits a calling signal via SCCH (1). Here, SCCH (1) is the first parent device CS
It includes "CS (1) -ID" which is the ID of (1).

Here, the SCCH (1) has the format shown in FIG. 11, and the identifier part (CI) 61
A value indicating the SCCH (for example, a binary number "1010") is inserted in a, and the system call code secret code number portion 62a is "CS (1)- "ID" is inserted, and the personal identification number PS of the called party PS-2B is inserted in the personal identification number section 63a for PS calling number.
The call number "PS (2B) -ID" is inserted and P
The sender personal station PS-1B is provided in the S-ID personal identification number section 64a.
The individual ID “PS (1B) -ID” of
In the CCH) information element 65a, a message according to the use such as calling, synchronization, and response is inserted, and a CRC bit 66a is added, and SCCH (1) is transmitted.

However, the child device PS-2B has the system ID "CS (2) -I" which is the system ID of the second parent device CS (2).
Depending on whether or not the SCCH (2) containing "D" is received,
This “CS (1) -ID” because it is waiting
Since SCCH (1) in which is inserted cannot be synchronized, SCCH (1) is discarded as invalid data. Therefore, the response signal from the handset PS-2B is not transmitted.

Therefore, the cordless handset PS-1B uses the SCCH
SCCH in which "CS (2) -ID" is inserted into (1)
Switch to (2) and send. Where SCCH (2)
Indicates that "CS" is displayed in the secret code portion 62a for the system call code.
It is the same as SCCH (1) except that "(2) -ID" is inserted.

On the other hand, the called-side cordless handset PS-2B
Sends a synchronous SCCH (2) as a synchronous signal. The SCCH (2) format has the same configuration.

On the other hand, the originating side handset PS-1B is
A response SCCH (2) is transmitted as a response signal, and a ringing tone is sounded by the called-side cordless handset PS-2B.

When the off-hook is performed at the called-side cordless handset PS-2B, TCH idle burst is performed and the communication state is entered.

Next, FIG. 13 shows a slave unit PS- of the present embodiment.
The 1B (calling side) handset direct call flow chart is shown.

Here, SCCH (1) is the first base unit C.
In addition, the SCCH (2) includes the second master device CS-, which includes the ID "CS (1) -ID" of the S-1.
The description will be made assuming that the second ID "CS (2) -ID" is included.

When the call operation of the direct call between the handset units is performed by the handset unit PS-1B (calling side), the control unit 6 of the handset unit PS-1B sends a normal call signal using SCCH (1). (S1 in FIG. 13).

At this time, the control unit 6 of the originating side handset PS-1B activates a timer, and when the other party normally receives, the normal synchronization signal sent by the other party is sent to SCCH (1).
It is checked whether or not is received (S2 in FIG. 13).

As a result, if received, the control unit 6 of the originating side handset PS-1B sends the normal synchronization signal to the SCCH.
It is transmitted via (1) (S3 in FIG. 13). Then, when the other party responds normally, it is checked whether or not the normal response signal sent by the other party is received via SCCH (1) (S4 in FIG. 13).

As a result, if it has not been received, it stands by, and if it has been received, the process proceeds to step S10.

As a result of the check in step S2, if the normal synchronous SCCH (1) is not received, the control unit 6 of the originating side mobile device PS-1B checks whether or not it has timed out (see FIG. 13). S5), if the time is not over, the process returns to step S2. If the time is over, the called side determines that communication using SCCH (1) cannot be performed, and proceeds to the process of step S6.

In step S6, the originating slave unit PS-1B
The control unit 6 of sends a calling signal including “CS (2) -ID” via SCCH (2). Then, the control unit 6 of the originating mobile device PS-1B checks whether or not the synchronization signal has been received on SCCH (2) (S7 in FIG. 13). As a result, if it has not been received, it is determined that it cannot be synchronized with the called-side child device, and the control unit 6 of the calling-side child device PS-1B becomes standby, and if it is received, the process proceeds to step S8.

At step S8, the calling slave unit PS-1
Control unit 6 of B has SCCH including "CS (2) -ID"
The sync signal is transmitted using (2).

Therefore, conventionally, even if the handset PS-1B (calling side) transmits the calling SCCH (1) in the normal SCCH message format for direct handset call, the handset PS-1B
-Since the CS-ID of -2B (the called side) does not match, the call command (SCCH (1)) was discarded, so that it was not possible to connect between the slaves belonging to different masters. In the present invention, the time lapse after the transmission of the calling SCCH (1) is monitored, the SCCH (2) including the CS (2) -ID adopted in the present invention is transmitted, and a different slave unit PS-2B is transmitted.
Even if the call SCCH (1) is sent to the device, the connection between the slaves belonging to different masters is enabled.

In this way, in step S8, the control unit 6 of the originating side handset PS-1B creates a synchronous SCCH (2) of the above-mentioned format adopted in the present invention, and controls to transmit it. Will be done.

Then, the calling side child device PS-1B checks whether or not the response SCCH (2) adopted in the present invention is received (S9 in FIG. 13). As a result, if it has not been received, the control unit 6 of the originating mobile device PS-1B is in standby, and if it has been received, the process proceeds to step S10.

At step S10, the originating slave unit PS-1
The control unit 6 of B controls to transmit a TCH idle burst, which is an idle burst signal, to the communication channel to be used. Then, the control unit 6 of the originating side handset PS-1B checks whether or not the receiving side has received the TCH idle burst returned by the receiving side, and if it has not received, it stands by, if it has received, The control of the direct call between the child devices using the communication channel is started.

On the other hand, the operation of the cordless handset PS-2B (destination side) will be described with reference to FIG. FIG. 14 shows a child machine PS-2.
It is a direct call flowchart between B (destination side) child machines.

In the slave unit PS-2B (destination side), the ID "CS (2)" is the ID of the master unit to which it belongs in the standby state.
The SCCH (2) including "-ID" is received, and it is monitored whether or not the call signal is received (S21 in FIG. 14). Then, when it is received, a normal synchronous SCCH (2) is created and controlled to be transmitted (S22 in FIG. 14). At this time, the control unit 6 of the child device PS-2B activates a timer to monitor the passage of time.

Then, the control unit 6 of the slave unit PS-2B next checks whether or not the normal synchronous SCCH (2) is received (S23 in FIG. 14). As a result, if it has not been received, the control unit 6 of the child device PS-2B becomes standby, and if it has been received, a normal response SCCH (1) is created, and after controlling to transmit this (FIG. 14). S24), step S3
Move to 0.

In step S25, it is checked whether or not the timer has timed out. If it is not timed out, the process returns to step S21. If it is timed out, the process proceeds to step S26.

In step S26, the control unit 6 of the slave unit PS-2B checks whether or not the SCCH (1) including the "CS (1) -ID" additionally registered in the present invention is received. As a result, if it has not been received, the control unit 6 of the handset PS-2B becomes standby, and if it has been received, the synchronous SCCH (1) adopted in the present invention is created and controlled to be transmitted (Fig. 14 S27). Then, the process proceeds to step S28.

In step S28, the control unit 6 of the slave unit PS-2B checks whether or not the synchronous SCCH (1) adopted in the present invention has been received. As a result, if it has not been received, the control unit 6 of the child device PS-2B is on standby, and if it has been received, the process proceeds to step S29.

Next, in step S29, the child machine PS-2B
The control unit 6 of 1 creates the response SCCH (1) adopted in the present invention, and controls it to transmit it.

Then, the process proceeds to step S30, in which the child device PS
-The control unit 6 of 2B checks whether or not the TCH idle burst has been received. If it has not received, it stands by, and if it has received, it moves to step S31 and transmits the TCH idle burst using the communication channel to be used. Move to control of direct call between handset units.

Specifically, when the caller side cordless handset PS-1B receives the response SCCH (2) from the cordless handset PS-2B,
Regarding the received response SCCH (2), the cordless handset PS-1
The control unit 6 of B detects the coincidence of the personal identification number. That is, the coincidence of the personal identification number stored in the response SCCH (2) is detected by the same control as described above. As a result, the control unit 6 of the caller side cordless handset PS-1B next matches the information element unit 6 because they match.
It recognizes that the handset PS-2B can respond by decoding the contents of 5a and that it understands the TCH (communication channel) to be used.

Upon understanding the TCH to be used, the called-side cordless handset PS-2B controls the radio unit 2, the modem unit 3 and the TDMA unit 4 by its control unit 6 to specify the communication channel to be used for communication. Try to become a channel. Similarly, the control unit 6 of the calling side PS-1B controls the wireless unit 2, the modem unit 3 and the TDMA unit 4 so that the communication channel used for communication becomes the designated channel. To do.

Thereafter, the calling side child device PS-1B transmits the idle burst of the TCH (communication channel) to be used, and when the idle burst of the same TCH (communication channel) is received from the child device PS-2B, the TCH synchronization is performed. Recognize that the connection has been established, make a direct call connection between the handset units, and enter the call.

As described above, in the fifth embodiment, the normal call SCCH (1) used for a normal call is used as the dedicated cell channel (SCCH) to check whether or not it is a partner that can be connected to the SCCH. When the other party does not respond in (1), SCCH (2) is used to try the call connection again, and if there is a match, it can be recognized as the other party.

Further, in the present embodiment, the called-side slave unit PS
-2B is the SC for individual cell (SCCH)
When only CH (2) is used, the calling handset PS-1B
May be used for connection by using the SCCH (2) of the present invention. In addition, the originating mobile device PS-1B is SCCH
When only (1) is used, the called-side handset PS-2B may be connected using the SCCH (1) of the present invention.

Therefore, according to this system, the child device PS can make outgoing and incoming connections with the parent device CS other than the parent device CS to which the child device PS belongs, and each child device P belonging to a different parent device CS.
In S as well, by pre-matching the personal identification code, it becomes possible to directly communicate with each other and to obtain a digital cordless telephone device with improved convenience for the user.

In the present embodiment, the calling side,
Both of the called party's cordless handsets have the other party's "CS-ID" and "P
"S-ID" is registered and both the calling side and called side slaves can use both SCCH (1) and SCCH (2). It does not matter if any one of the called-side cordless handsets can use only one type of SCCH.

[0161] For example, the called station PS-2B sends the SCCH
When only (2) is used, the calling handset PS-1B has S
Connection is made using CCH (2). In this case, the calling side child device PS-1B has a system ID “CS” of the other side.
(2) -ID "and individual ID" PS (2B)-of the other party "
Although it is necessary to register "ID", it is only necessary to register the individual ID "PS (1B) -ID" of the other party in the called side PS-2B. (1)
The registration of "-ID" is unnecessary. Further, the operation of the called-side cordless handset PS-2B in this case is as described above in S25 to S2 of FIG.
This is an operation without 9.

Also, the calling side child device PS-1B is SCCH
When only (1) is used, the called-side cordless handset PS-2B uses S
The connection will be made using only CCH (1). In this case, the called side PS-2B is connected to the system I of the other side.
D “CS (1) -ID” and the partner's individual ID “PS
(1B) -ID "must be registered t @, but the calling party's handset PS-1B must have the individual ID" PS (2B) -I "of the other party.
All you have to do is to register "D", the system ID of the other party
The registration of "CS (2) -ID" is unnecessary. In addition, the operation of the calling side mobile device PS-1B in this case is as shown in FIG.
The operation is omitted from S5 to S9.

Further, in the present embodiment, when a direct call between slave units is made and there is no response signal for the SCCH transmitted from the calling side, SCCH (1) is replaced with SCCH (2).
It is configured to switch to the SCCH like the LCCH superframe shown in FIG. 4 of the first embodiment.
Needless to say, the configuration including both (1) and SCCH (2) is good. In this case as well, as in the case of the fifth embodiment, direct communication between the child devices becomes possible even between the child devices that belong to different parent devices.

(Sixth Embodiment) Next, the fifth embodiment will be described.
A modified example will be described as a sixth embodiment. Sixth Embodiment
In the direct call between the handset units according to the fifth embodiment, as in the case of the second embodiment described above, a common "common system ID" is set for a plurality of base units, and the common system I
It is configured by additionally registering D in both the calling side handset and the called side handset.

In this case, the operation on the calling side is as shown in FIG.
The operations of S1 to S5 of SCC including its own CS-ID
Use H to perform operations S6 to S9 as "common system ID"
This is done by using the SCCH containing As the operation on the called side, the operation of S21 to S25 of FIG. 14 is performed by using the SCCH including its own CS-ID, and
Operations S26 to S29 including S including "common system ID"
This is done by using CCH.

Therefore, the SCCH in which the "common system ID" is inserted, regardless of whether the CS-ID is different or between the slaves.
By sending and receiving, it is possible to perform the operation of making a call and receiving a call.

Although various embodiments have been described above, according to the present system, the child device PS can make outgoing and incoming connection with the parent device CS other than the parent device CS to which the child device PS belongs, and a different parent device. Even in each cordless handset PS belonging to the CS, it becomes possible to directly communicate between the cordless handsets by matching the personal identification code in advance, and a digital cordless telephone device with improved convenience for the user can be obtained. Like

[0168]

As described above, according to the present invention,
Since the child device PS can make outgoing and incoming connection with the parent device CS other than the parent device CS to which the child device PS belongs, and each child device PS belonging to a different parent device CS can directly talk between the child devices, so that two households There is an advantage that the system can be expanded in houses and offices.
In addition, it is also advantageous in terms of serviceability that authorized people can realize a service function that uses the child device PS anywhere.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a handset PS according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a parent device CS as an embodiment of the present invention.

FIG. 3 is a diagram showing a storage state of a personal identification number storage area unit in the memory units 11 and 15 according to the first embodiment of the present invention.

FIG. 4 is a diagram showing a configuration example of an LCCH superframe according to the first embodiment of the present invention.

FIG. 5 is a diagram showing a BCCH format according to the first embodiment of the present invention.

FIG. 6 is a diagram showing formats of SCCH (downlink) and SCCH (uplink) according to the first embodiment of the present invention.

FIG. 7 is a diagram showing a PCH message format according to the first embodiment of the present invention.

FIG. 8 is a diagram showing a configuration example of an LCCH superframe according to the third embodiment of the present invention.

FIG. 9 is a diagram showing a storage state of a personal identification number storage area unit in the memory units 11 and 15 according to the third embodiment of the present invention.

FIG. 10 is a flowchart showing an operation example of the third embodiment of the present invention.

FIG. 11 is an S of a direct call between handset devices according to the fifth embodiment of the present invention.
The figure which shows a CCH message format.

FIG. 12 is a diagram showing a direct call control sequence between handset units according to a fifth embodiment of the present invention.

FIG. 13 is a flowchart illustrating an operation example of a calling side in a direct call between handset devices according to the fifth embodiment of the present invention.

FIG. 14 is a flowchart illustrating an operation example of a called side in a direct call between handset devices according to the fifth embodiment of the present invention.

FIG. 15 is a system configuration diagram of a digital cordless telephone device.

[Explanation of symbols]

1, 11 ... Antenna 2, 12 ... Wireless section 3, 13 ... Modem section 4,14 ... TDMA part 6, 16 ... Control unit 6a, 16a ... PIN number matching detection function unit 6b, 16b ... PIN code memory control function unit 6c, 16c ... PIN input identification function section 7, 17 ... Operation part 7a, 17a ... Function keys 7b, 17b ... Numeric keypad 8a ... Microphone 8b ... speaker 9, 15 ... Memory section 18 ... Interface section

Front page continuation (56) References JP-A-5-327608 (JP, A) JP-A-8-205239 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) H04B 7 / 24-7/26 102 H04Q 7/00-7/38

Claims (15)

(57) [Claims] 1. A plurality of master units connected to a wired line and a plurality of slave units respectively connected to these master units via wireless lines, each of which is connected to the master unit and its master unit. In the digital cordless telephone device that controls the connection of the wireless line between the master unit and the slave unit by collating the system ID that is set in common with all possible slave units, it is registered in advance in the master unit. In addition to its own system ID, a common system ID that is a system ID that is common to the plurality of parent devices, and an individual ID of a child device that belongs to another parent device that is newly enabled for connection. A second storage unit that has a first storage unit that can be additionally registered and that can additionally register the common system ID in addition to the system ID of the parent unit to which the self unit previously registered belongs to the slave unit. And belongs to the base unit and other base units And a wireless line setting means for setting the wireless line by transmitting and receiving a control signal in which the common system ID is inserted when the wireless line is set between the slave units. Digital cordless telephone device. 2. The master unit has an ID input means for inputting the common system ID and an individual ID of a slave unit that belongs to the other master unit, and the common unit is provided in the common unit. 2. The digital cordless telephone device according to claim 1, further comprising ID input means for inputting a system ID. 3. When the master unit detects an incoming call from the wired line to a slave unit belonging to another master unit, the common system ID and the relevant system ID are stored in a transmission area of a paging signal of the control information. When a paging signal in which the individual ID of the child device is inserted is transmitted, and when the paging signal is received, the child device transmits a link channel establishment request signal in which the common system ID and the individual ID of the child device are inserted. However, when the master device receives the link channel establishment request signal, the master device transmits a link channel allocation signal in which the common system ID and the individual ID of the slave device are inserted to the slave device, and the slave device is 2. The receiver according to claim 1, wherein upon receipt of this link channel assignment signal, the assigned call channel is switched to and a ringing tone is generated to notify the incoming call. Digital cordless telephone device. 4. When the master unit receives a call signal from a slave unit to which the newly connectable other master unit belongs, the common system ID and the individual ID of the slave unit.
And transmits the link channel assignment signal to the slave unit, and when the slave unit receives the link channel assignment signal, the slave unit switches to the call channel assigned by the master unit and dials the dialed party. The digital cordless telephone apparatus according to claim 1, wherein a signal is transmitted to make a call. 5. A plurality of master units connected to a wired line and a plurality of slave units connected to these master units via a wireless line, and each master unit and its master unit can be connected. System ID that is set in common with all the slaves
In the digital cordless telephone device that controls the connection of the wireless line between the master unit and the slave unit by collating with each other, the master unit may have other system IDs other than the system ID of itself registered in advance. A first storage unit capable of additionally registering an additional system ID, which is a system ID of a slave unit belonging to the master unit, and an individual ID of the slave unit, and a first transmission of control information to be transmitted to the slave unit. A control means for inserting the own system ID into the area and inserting and transmitting the additional system ID into the second transmission area of the control information when the additional system ID is registered. Digital cordless telephone device. 6. The digital cordless telephone device according to claim 5, wherein the master unit has an ID input means for additionally registering the additional system ID and the individual ID of the slave unit. 7. When the master unit detects an incoming call from the wired line to a slave unit belonging to another master unit, the master unit transmits the additional system ID and the relevant system ID in the transmission area of the paging signal of the control information. When a paging signal in which the individual ID of the child device is inserted is transmitted, and when the paging signal is received, the child device transmits a link channel establishment request signal in which the additional system ID and the individual ID of the child device are inserted. However, when the master device receives the link channel establishment request signal, the master device transmits a link channel assignment signal in which the additional system ID and the individual ID of the slave device are inserted to the slave device, and the slave device is 6. Upon receipt of the link channel assignment signal, the assigned call channel is switched to, a ringing tone is generated, and an incoming call is informed. Digital cordless telephone device. 8. The master unit, upon receiving a call signal from a slave unit to which the newly connectable other master unit belongs, the additional system ID and the individual ID of the slave unit.
And transmits the link channel assignment signal to the slave unit, and when the slave unit receives the link channel assignment signal, the slave unit switches to the call channel assigned by the master unit and dials the dialed party. 6. The digital cordless telephone apparatus according to claim 5, wherein a signal is transmitted to make a call. 9. A plurality of master units connected to a wired line and a plurality of slave units connected to these master units via wireless lines, and each master unit and its master unit can be connected. A digital cordless telephone device that controls connection of a wireless line between a master unit and a slave unit by collating a system ID commonly set with the slave unit. Storage means capable of additionally registering an individual ID of a child device belonging to another parent device, and control for inserting and transmitting its own system ID in control information to be sent to the child device. Means, and the additional device I, which is the system ID of another parent device to be newly connected, in addition to its own system ID registered in advance in the child device.
When the storage means capable of additionally registering D and the control information from the master unit are received, the system ID in which the control information is inserted is compared with the own system ID stored in the first storage means, When they match, the first control means for connecting the base unit and the wireless line, and the result of collation of the system ID by the first control means,
When a match of the system IDs cannot be detected even after a lapse of a predetermined time, a means for switching a system ID to be checked from the own system ID to the additional system ID, and a control information received from the master unit. A digital cordless telephone device characterized in that the system ID and the additional system ID are collated with each other, and a second control means is provided for connecting the master unit and the wireless line when they match. 10. The slave unit has an input unit for additionally inputting the additional system ID, and the master unit additionally has an input unit for additionally inputting an individual ID of a slave unit that is newly connectable. The digital cordless telephone device according to claim 9, further comprising: 11. When the master unit detects an incoming call from the wired line to a slave unit belonging to another master unit, the master unit stores the system ID and the own system ID in the transmission area of the paging signal of the control information. A paging signal in which the individual ID of the slave unit is inserted is transmitted, and the slave unit detects the incoming call and the system I of the master unit is detected.
When receiving the paging signal in which D and the individual ID of the child device are inserted, the link channel establishment request signal in which the system ID of the parent device that detected the incoming call and the individual ID of the child device are inserted is transmitted, Upon receiving the link channel establishment request signal, the master unit that has detected the incoming call transmits a link channel assignment signal in which the system ID of the self unit and the individual ID of the slave unit are inserted to the slave unit, 10. The digital cordless telephone device according to claim 9, wherein upon receipt of the link channel allocation signal, the slave unit switches to the allocated communication channel and generates a ringing tone to notify an incoming call. 12. The slave device transmits a call signal in which a system ID of the master device and an individual ID of the master device are inserted when the slave device makes a call to the newly connectable master device. However, when the master device receives the call signal, the master device transmits a link channel allocation signal in which the system ID of itself and the individual ID of the slave device are inserted to the slave device, and the slave device 10. The digital cordless telephone device according to claim 9, wherein when the link channel assignment signal is received, the call channel assigned by the master unit is switched to, and the dial signal of the input partner is transmitted to make a call. 13. A plurality of base units connected to a wired line,
A system I which is composed of a plurality of slaves connected to these masters via wireless lines, and which is commonly set between each master and all slaves connectable to the master
In a digital cordless telephone device having a direct call function between handset units, which enables direct connection control of a wireless line between handset units by collating D, the handset unit has its own system registered in advance. ID and individual I
In addition to D, as an additional system ID and an individual PS call number, a system I of a child device that wants to newly make a direct call between the child devices
D and a storage means capable of additionally registering an individual ID, and at the time of making a direct call between slaves, inserts the system ID of itself and the individual PS call number, which is the individual ID of the other party, and transmits the first call signal And a response signal from the receiving side slave unit to the first calling signal cannot be detected for a predetermined time, the additional system ID additionally registered in the storage means and the individual ID of the other side.
Means for transmitting a second call signal in which the individual PS call number is inserted, and a system inserted in the call signal when the first call signal or the second call signal is received. Control means for collating the ID and the individual PS call number with the own system ID and the individual ID stored in the storage means, and controlling to enable direct communication between the handset with the partner handset when they match. And a digital cordless telephone device. 14. The slave unit is a slave unit that belongs to a different master unit, and each of these slave units includes at least the additional system ID and an individual P of the other party.
14. The digital cordless telephone device according to claim 13, further comprising an input means capable of additionally inputting an S-call number. 15. The digital cordless telephone device according to claim 13, wherein the additional system ID is a common system ID common to the plurality of parent devices.