JPH08195708A - Telephone set in common for master and slave set - Google Patents

Abstract

PURPOSE: To extend the number of connected mobile stations in a master slave radio transmission system at a low cost. CONSTITUTION: A PS number management section 132 stores a PS number of a mobile station registered as a slave set of its own station. A communication section 110 of a base station conducts connection control between the station and a slave set registered in the station. A communication section 120 of a mobile station conducts connection control between the station and a master set registered in the station. A discrimination section 131 of a called station identifies a PS number of an opposite station based on a setup message or a called message from a slave set or a master set. When the PS number is registered in a PS number management section 132, the management section 132 allows the communication section 110 of the base station to conduct connection control between the station and a final communication opposite station, and when the PS number is not registered in the PS number management section 132, the management section 132 allows the communication section 120 to conduct connection control between the station and the master set.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone device in a PHS (personal handy phone system: second generation cordless telephone system).

[0002]

2. Description of the Related Art In recent years, with the progress of advanced information technology, attention has been paid to a wireless mobile communication system that realizes the concept of "anytime, anywhere, with anyone", and it has been realized in various forms such as mobile phones and car phones. There is. At present, preparations are underway for the realization of the PHS system as a new wireless mobile communication system using digital communication.

This PHS system is used as a digital cordless telephone in place of a conventional analog cordless telephone, and a mobile station, which is a mobile station, can be accessed via an indoor base station, a master station, or an outdoor base station. It is connected to the public line and can communicate with the other party. Details of the PHS system are described in the RCR standard STD-28, and thus the description thereof is omitted here.

By the way, in a conventional wireless transmission system having a plurality of mobile stations, an indoor parent-child cordless telephone system predetermines the relationship between the child device and the parent device by registering the child device in the parent device. It was Specifically, when a subscriber is registered in the PHS system or when a new slave unit is added, the PS number of the slave unit is registered in the master unit so that the relationship between the master unit and the slave unit can be improved. It was set. In this case, the master unit controls the communication only with respect to the slave unit that is registered as the slave unit.

FIG. 7 is a block diagram showing the connection relationship of a conventional parent-child cordless telephone system. As shown in FIG. 7, the master unit 502 has a slave unit 504 or slave unit 505 registered with the master unit 502 and a PBX (Private Branch Exchange) or a public line network (hereinafter, both are referred to as PBX / network) 501.
The master unit 503 relays the connection between the PBX / network 501 and the slave unit 506 or the slave unit 507 registered in the master unit 503. In this case, the base unit 502
In addition, when it is desired to increase the number of slave units that can simultaneously talk over the number of simultaneously controllable master units 503, a new master unit is added by wire connection and a new slave unit is registered in the master unit. There was a need.

On the other hand, for example, Japanese Patent Laid-Open No. 04-287
Japanese Laid-Open Patent Publication No. 533 relates to a multi-layer wireless transmission system having a plurality of wireless stations having a multi-layer structure, and in particular, a layer code for identifying a layer is set to each wireless station, and the layer code is compared to determine a parent device or a child device. A multi-layered wireless transmission system has been proposed for performing wireless transmission. Hereinafter, an example of the conventional multi-layer wireless transmission system described above will be described with reference to FIG. FIG. 8 is a diagram conceptually showing an example of a conventional multi-layer wireless transmission system. As shown in FIG. 8, the plurality of wireless stations 2N + 2, 2N + 1, 2N, 2N-1, 2N-2 are respectively divided into a plurality of layers, and the respective wireless stations 2N + 2, 2
Hierarchical codes N + 2, N + 1, N, N-1, and N-2 are assigned to N + 1, 2N, 2N-1, and 2N-2, respectively. In such a configuration, when the wireless station 2N assigned with the hierarchical code N executes wireless transmission, it operates as a master unit or a slave unit according to the hierarchical code of the partner wireless station.

For example, the radio station 2N has its own hierarchical code N
Radio station 2N to which a hierarchical code N + 2 higher than the above is added
When wirelessly transmitting to +2, the wireless station 2N is the wireless station 2N +
It operates as a slave for 2. In addition, the wireless station 2N
The same applies when wirelessly transmitting to the wireless station 2N + 1. On the other hand, when the wireless station 2N wirelessly transmits to the wireless station 2N-1 to which the hierarchical code N-1 lower than its own hierarchical code N is given, the wireless station 2N sends the wireless station 2N-1 to the wireless station 2N-1. Operates as a base unit. The same applies when the wireless station 2N wirelessly transmits to the wireless station 2N-2.

That is, each wireless station is not provided with a unique relationship of a master unit and a slave unit, and each wireless station operates as a slave unit at one time depending on the layer code of the communication partner, and at some time as a master unit. To work as.

[0009]

However, in the above-mentioned multi-layer wireless transmission system, since it is necessary to assign a layer code to each of a plurality of wireless stations, the existing layer code is not assigned. There was a problem that it was difficult to use together with the parent-child cordless telephone system. Also, since all wireless stations have both the functions of the master unit and the slave unit, the cost peculiar to the wireless station becomes high,
There is a problem that the cost for constructing the wireless transmission system is high.

In view of the above problems, the present invention can be used in combination with an existing parent-child cordless telephone system, and at a relatively low cost, the number of simultaneously connectable slave units and the combination of simultaneously connectable slave units are provided. It is an object of the present invention to provide a master-slave combined-use telephone device capable of expanding the range and expanding the range of the mobility management area in the parent-child cordless telephone system.

[0011]

According to a first aspect of the present invention, there is provided a base unit / slave unit / telephone device, which is registered in the self station and the registration means for registering a plurality of mobile stations as the self units. A lower communication path setting means for setting a wireless first communication path with a slave unit and a wireless second communication path between the self station and the master unit in which the self station is registered as the slave unit are provided. If the final communication partner station of the connection request received from the upper communication path setting means and the first communication path or the second communication path is not the own station, the final communication partner station is registered in the own station. Destination station determining means for determining whether or not the mobile station is a slave station that is present, and when the call receiving station determining means determines that the final communication partner station is a slave station registered in the local station, The setting means is caused to set the third communication path between the own station and the last communication partner station, and the receiving station judgment procedure is performed. Determines that the final communication partner station from the first communication path is not the slave unit registered in the local station, the higher-level communication path setting means is set between the local station and the local station of the local station. Between the communication path setting control means for setting the fourth communication path and the first communication path and the third communication path or the fourth communication path, or the second communication path and the third communication path. And a user information transfer means for transmitting user information received via one of the communication paths to and from the other communication path.

According to a second aspect of the present invention, there is provided a telephone device which also serves as a base unit and a slave unit,
2. The base unit slave unit telephone apparatus according to claim 1, wherein the base unit is a base station in the personal handyphone system, and the handset unit is a mobile station in the personal handyphone system. According to a third aspect of the present invention, there is provided a base unit / telephone unit / telephone device according to the second aspect, wherein the registration means has a PS number storage unit for storing a PS number of a mobile station as a handset unit. The receiving station determination means is a PS for identifying the PS number of the final communication partner station from the call setup message received via the first communication path or the incoming call message received via the second communication path. Whether or not the final communication partner station is a slave unit registered in the local station is determined by whether or not the number identification unit and the PS number identified by the PS number identification unit are stored in the PS number storage unit. And a determination unit for determining.

[0013]

According to the present invention, in the telephone device also serving as a master / slave unit, the terminating station determining means is the last of the first communication path connected from the slave or the second communication path connected from the master. When the communication partner station is not the own station, it is determined whether or not the final communication partner station is a slave unit registered in the own station.
When the receiving station determination means determines that the final communication partner station is a slave unit registered in the own station, the communication path setting control means causes the lower communication path setting means to set the own station and the final communication partner. When a third communication path is set up with the station and the receiving station judging means judges that the final communication partner station from the first communication path is not the slave unit registered in the own station, The communication path setting means sets the fourth communication path between the own station and the parent device of the own station. The user information transfer means is provided between the first communication path and the third communication path or the fourth communication path, or between the second communication path and the third communication path. And transmits the user information received via the other communication path.

Therefore, according to the present invention as set forth in claim 1,
The master / slave combined telephone device registers its own station with the existing master,
By registering an existing slave unit to your own station, you can set up a wireless communication path between the existing master unit and the existing slave unit. It can be easily incorporated into a parent-child wireless transmission system. Furthermore, since the base unit / slave unit telephone device is a wireless mobile station, compared to a case where a master unit is added by wire connection,
It can be added at a relatively low cost,
Since it can be used together with the existing master unit and the existing slave unit, the number of slave units in the master-slave wireless transmission system can be expanded at a relatively low cost.

Further, hierarchical communication via the first communication path and the fourth communication path or via the second communication path and the third communication path, that is, the parent device intervenes. When communicating via a route, the master unit / slave unit telephone device determines the number of combinations of slave units that can be simultaneously connected in the master unit / slave type wireless communication device as the number of slave units registered in the local station. It can be expanded by the number of units. Further, in the case of performing communication through a hierarchical communication path in which the master unit intervenes in the master-slave wireless transmission system, the master-slave unit / telephone device sets the second communication path or the fourth communication path. The mobile station management area of the base unit, which is determined as the possible distance, is set to the first communication path or the third
Can be expanded by the distance of the communication path.

Further, the lower communication path setting means allows the first
And a third communication path can be set, and user information can be set between the slaves of its own station independently of the master via the first communication path and the third communication path. Since it is possible to send and receive, it is possible to set a new communication path between the slaves of the own station via the own station, in addition to the communication path that can be set by the parent machine to which the own station is registered at the same time. be able to. Therefore,
To that extent, it is possible to increase the number of handset units and the number of combinations that can be simultaneously talked in the system.

According to a second aspect of the present invention, in the base unit / slave unit telephone device according to the first aspect, the base unit is a base station in a personal handyphone system, and the handset is a mobile unit in a personal handyphone system. It is a station. Therefore, in the personal handyphone system, it is possible to obtain the same effect as that of the base unit / handset device / telephone device according to the first aspect.

According to a third aspect of the present invention, in the registration means of the base unit / slave unit telephone device according to the second aspect, the PS number storage section stores the PS number of the mobile station which is the slave unit.
In the terminating station determination means, the PS number identifying unit determines the PS number of the final communication partner station from the call setup message received via the first communication path or the incoming call message received via the second communication path. The determining unit determines whether the final communication partner station is a slave unit registered in the local station according to whether the PS number identified by the PS number identifying unit is stored in the PS number storage unit. Determine whether or not.

Therefore, in the personal handyphone system, it is possible to obtain the same effect as that of the base-device / handset-equipped telephone device according to the first aspect.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing the configuration of a base unit / slave unit telephone device 101 according to an embodiment of the present invention. FIG.
In FIG. 1, the master / slave device telephone device 101 includes a base station communication unit 110, a mobile station communication unit 120, and a final partner station collation unit 130. Furthermore, the base station communication unit 110 includes a base station transmission unit 111, a base station reception unit 112, and a base station communication control unit 113. The mobile station communication unit 120 includes a mobile station transmission unit 121, a mobile station reception unit 122, and a mobile station communication control unit 123. The final partner station verification unit 130 includes a called station determination unit 131 and a PS number management unit 132.

As a base station for PHS communication, the base station transmitter 111 sends information about the channel structure to each slave 103 registered in the master / slave telephone device 101 via a downlink carrier. Control information such as information about call connection and user information are wirelessly transmitted. Base station receiver 1
As a base station for PHS communication, 12 wirelessly receives control information and user information from each slave 103 registered in the master / slave telephone device 101 via an upstream carrier.

The base station communication control unit 113, via the base station transmission unit 111 and the base station reception unit 112, makes a connection for incoming and outgoing calls to each slave unit 103, a position registration of the slave unit 103, and a channel during communication. Control for switching and service identification is performed. With the above configuration, the base station communication unit 110 is configured such that the partner station is the master unit / slave unit telephone device 101.
In the case of the handset 103 registered in step 2, call connection / disconnection and communication are performed in response to a call setup request from the handset 103.

As a mobile station for PHS communication, the mobile station transmitter 121 wirelessly transmits control information, user information, etc. to the master unit 102 via an upstream carrier. The mobile station receiving unit 122 serves as a mobile station for PHS communication and serves as a base station 102.
On the other hand, wireless reception of control information, user information and the like is performed via a downlink carrier. The mobile station communication control unit 123, via the mobile station transmission unit 121 and the mobile station reception unit 122,
Control is performed to perform connection for incoming and outgoing calls to the base unit 102, location registration of the local station, channel switching during communication, service identification, and the like.

With the above configuration, the mobile station communication section 120 is
When the partner station is the master device 102 in which the master device / slave device / telephone device 101 is registered, call connection / disconnection and communication are performed in response to a call setting request from the master device 102. The called station determination unit 131 receives the PS number of the final partner station from the base station communication control unit 113 and the mobile station communication control unit 123, and determines whether or not the PS number is registered in the parent device / slave device telephone device 101. The PS number management unit 132 is queried to determine whether the communication path mode of the master / slave device / telephone device 101 is the single mode or the dual mode.

For example, the called station determination unit 131 sets the communication path mode to the independent mode when a call is made between the slaves 103 registered in itself. In the single mode, the base station communication unit 110 establishes a communication path between the slave units 103 in the same manner as the conventional master unit.
In the communicating state after the communication path is established, the base station communication unit 110
Transfers the user information, such as voice information, which is communicated between the slaves 103, to the slaves 103, which are the other parties, via the base station transmitter 111 and the base station receiver 112.

Further, for example, when a call is made between the slave unit 103 registered by itself and another slave unit registered in the master unit 102, the terminating station judging unit 131 uses the communication path mode. Is the dual-purpose mode. In the dual mode,
In the base-station / combined telephone device 101, the base station communication unit 110 establishes a communication path between the slave device 103 and the master-unit / combined telephone device 101, and at the same time, the mobile station communication unit 120 causes the base-station / communicated device to operate. By establishing a communication path between the dual-use telephone device 101 and the master device 102, the slave device 10 registered by itself is established.
3 establishes a communication path between the master device 102 and the master device 102. In the communication-in-progress state after both communication paths have been established, the parent device / slave device telephone device 101 has the base station reception unit 112 or the mobile station reception unit 12.
User information such as voice information received in 2 is transmitted via the base station communication control unit 113 and the mobile station communication control unit 123.
As it is, the mobile station transmitter 121 or the base station transmitter 11
1 and the self-registered slave 103 and master 102
User information that is communicated with other slave devices registered in the slave device 10 that is the transmission destination of each user information.
3 or the base unit 102.

The PS number management unit 132, as a slave unit of the master unit / slave unit / telephone device 101, operates as the master unit / slave unit / telephone device 10.
The PS number of each slave unit 103 whose communication is controlled by 1 is stored, and in response to an inquiry from the called station determination unit 131,
The stored PS number is searched and whether or not the corresponding PS number is registered is notified as determination information. With the above configuration, the final partner station verification unit 130 determines whether or not the final partner station of the communication received by the base station reception unit 112 or the mobile station reception unit 122 is the slave device 103 registered by itself. The communication path mode of the combined-purpose telephone device 101 is determined.

FIG. 2 is a block diagram showing an example of the configuration of a parent-child cordless telephone system including the parent device / slave telephone device 101 of this embodiment. 2, the same components as those in FIG. 1 are designated by the same reference numerals. Base unit 102
Are connected to the PBX / network 210 by wired connection. The slave unit 220 and the master unit slave unit / telephone device 101 are registered in the master unit 102. In addition, the child device 231 and the child device 23
Reference numeral 2 denotes a slave unit added by including the master unit slave unit telephone device 101, and the slave unit 231 and the slave unit 232 correspond to the slave unit 103 in FIG. 1, respectively.
The slave unit 231 and the slave unit 232 are the master unit and the slave unit telephone device 1
It is registered in 01 as well as in the master device 102.

The processing procedure of the master / slave telephone device 101 will be described below with reference to FIGS. 1, 2, 3 and 4. FIG. 3 is a communication sequence diagram showing a processing procedure of the parent device / slave device telephone device 101 when a connection request is issued from the child device 231 to the child device 220. First, the child device 231
The profile of the logical control channel (LCCH) downlink superframe and the LCCH uplink access timing are received by receiving the radio channel notification message from the base station transmitter 111, and according to the access timing,
The link channel establishment request is transmitted using the dedicated cell channel (SCCH). In the base station receiver 112,
The base station communication unit 110 that has received the link channel establishment request from the handset 231 searches for an unused channel based on the PHS communication standard, and assigns a channel for making a call to the handset 231. This link channel allocation message is transmitted from the base station transmitter 111 to the child device 231. Further, the slave unit 231 and the base station communication unit 110 mutually transmit and receive synchronization bursts to establish carrier synchronization and timer synchronization. Next, by the asynchronous balanced mode setting (SABM) from the slave unit 231 side and the confirmation UA from the base station communication unit 110 side, the low speed associated channel (SACC)
H) and the fast associated channel (FACCH) are set to the multiframe mode acknowledged mode of operation. Furthermore, using the set SACCH and FACCH, the slave unit 231
The call setup message from the client side and the call setup acceptance message from the base station communication unit 110 side perform call setup, and the secret key setup message from the handset 231 side sets the secret key for secret communication control. . After this, the cordless handset 23
DISC from 1 side and base station communication unit 110 corresponding thereto
With the confirmation UA from the side, the multi-frame mode confirmation type operation mode is released. (Step S301) Here, when the child device 231 is in the movement management area of the parent device 102 and the parent device 102 receives the link channel establishment request from the child device 231, the parent device 102 The connection control may be performed directly on the child device 231 without using the child device / telephone device 101.

FIG. 4 is a flow chart showing a processing procedure in steps S302 to S307 of FIG. Base station communication control unit 1
13 in step S301, the base station receiving unit 11
The PS number of the connection partner station is identified from the called number of the call setup message received from No.
The S number is notified (step S302).

The called station determination unit 131 uses the PS number received from the base station communication control unit 113 as the PS number management unit 13
2 and inquires whether or not the PS number is registered (step S303). PS number management unit 13
2 notifies the PS number received from the called station determination unit 131 of determination information indicating whether or not the PS number is registered in itself. The determination information is, for example, “1” if registered and “0” if not registered. Here, since the PS number received from the base station communication control unit 113 is not registered in the PS number management unit 132, the PS number management unit 132 notifies the called station determination unit 131 of the determination information “0” ( Step S304).

The called station determination unit 131 passes the dual mode notification to the base station communication control unit 113 and the mobile station communication control unit 123, and notifies the mobile station communication control unit 123 of the PS number of the connection partner station (step S305). . Step S303
In, the PS number of the connected station is the PS number management unit 13
If it is registered in 2, the PS number management unit 132 notifies the called station judgment unit 131 of the judgment information “1” (step S
306).

If the judgment information is "1", the called station judgment unit 131 sends a single mode notification to the base station communication control unit 1 below.
13, the base station communication control unit 113 is notified of the PS number of the connection partner station, and connection control is performed for the connection partner station, which is a slave unit registered in itself (step S
307). The processing procedure of the connection control on the side of the parent device / slave device telephone apparatus 101 in step S307 is the same as the processing procedure performed by the parent device 102 in the connection control performed between the parent device 102 and the child device 220 in FIG. Therefore, the description is omitted.

The mobile station communication control unit 123 transmits / receives control information to / from the base unit 102 via the mobile station transmission unit 121 and the mobile station reception unit 122, and in the same procedure as in step S301, the PHS communication standard. Based mobile station communication unit 1
20 and the master unit 102 are controlled (step S
308). Next, after the communication between the master unit 102 and the slave unit 220 which is the final partner station is connected, the slave unit 220 is connected.
Base unit 102 that received the call and response message from
Sends a call and response message from the mobile station communication unit 120.

On the other hand, the mobile station communication controller 123
When the mobile station receiving unit 122 receives the call and response message, the mobile station receiving unit 122 passes the call / response reception notification to the base station communication control unit 113 (step S309). Base station communication control unit 1
13 transmits the call and response message to the child device 231 via the base station transmitter 111 (step S31).
0).

Transfer of user information between the base station communication control unit 113 and the mobile station communication control unit 123 is started in the master unit / slave unit telephone device 101, and a transition is made to the communicating state (step S311). After the communication between the slaves 231 and 220 is completed, the disconnection message is transmitted to the master / slave-use telephone device 101 by the on-hook of the slave 231.
The base station communication unit 110 that has received the disconnection message from the child device 231 notifies the mobile station communication unit 120 that the disconnection message has been received. The mobile station communication unit 120 notified of the reception of the disconnection message transmits the disconnection message from the mobile station transmission unit 121 to the master device 102.

Base station communication unit 1 that received the disconnection message
10 disconnects the TCH, releases the call, and sends a release message to the child device 231. Upon receiving the release message, the child device 231 transmits a release completion message to the base station communication unit 110, disconnects the TCH, and releases the call. Thereafter, the disconnection command DISC and the confirmation UA are transmitted and received between the handset 231 and the base station communication unit 110 to release the multi-frame mode confirmation type operation mode, and the wireless channel disconnection message and the wireless channel disconnection completion message are transmitted. To disconnect the wireless channel between the handset 231 and the base station communication unit 110.

The base unit 102 which has received the disconnection message
The disconnection message is transmitted to the child device 220, and the above-mentioned messages are transmitted / received to / from the mobile station communication unit 120 in the same manner as the above procedure, and the parent device 102 and the mobile station communication unit 1 are transmitted.
The radio channel with 20 is disconnected. Upon receiving the disconnection message, the child device 220 disconnects the wireless channel with the parent device 102 in the same manner as the above procedure.

FIG. 5 is a communication sequence diagram showing a processing procedure of the base unit / combination telephone device 101 when a connection request is made from the handset 220 to the handset 231. The call connection control between the child device 220 and the parent device 102 in response to the call setting request from the child device 220 is performed based on the PHS communication standard in the same manner as the communication sequence described in step S301 of FIG. After that, the master device 102 transmits an incoming call message to the master device / slave device / telephone device 101 using the paging channel (PCH).

FIG. 6 is a flow chart showing the processing procedure in steps S401 to S407 of FIG. When the mobile station reception unit 122 receives an incoming call message from the base unit 102 in the base unit / slave unit telephone device 101, the mobile station communication control unit 1
23 identifies the PS number of the connected station from the incoming call message and notifies the called station determination unit 131 (step S).
401).

The called station determination unit 131 uses the PS number received from the mobile station communication control unit 123 as the PS number management unit 13
2 is notified, and the PS number management unit 132 is inquired whether or not the PS number is registered in itself (step S4).
02). The PS number management unit 132 uses the called station determination unit 131.
With respect to the PS number received from, the receiving station determination unit 131 is notified of the determination information indicating whether or not the PS number is registered in itself. Here, since the PS number is registered with itself, for example, the determination information notifies "1" (step S403).

The called station determination unit 131 passes the dual mode notification to the mobile station communication control unit 123 and the base station communication control unit 113, and the base station communication control unit 113 notifies the PS of the connection partner station.
The number is notified (step S404). Step S40
In 2, when the PS number is not registered with itself, the PS number management unit 132 notifies the called station determination unit 131 of the determination information “0” (step S405), and the parent device / slave telephone device. 101 returns to the idle state (step S406).

The mobile station communication section 120 controls the connection based on the PHS communication standard by the mobile station communication control section 123. Specifically, a link channel establishment request is activated as a response to the incoming call message from the base unit 102, and thereafter, in the same manner as the procedure described in step S301 of FIG. After setting the operation mode, FACCH and SACC
Using H and H, the mobile station transmitter 121 transmits an incoming call response message. Next, the mobile station communication control unit 123 performs call setting and secret key setting between the master device 102 and the mobile station communication unit 120. Here, the mobile station communication control unit 123
Passes the call / response waiting notification to the base station communication unit 110.
(Step S407) When the child device 231 is in the movement management area of the parent device 102 and receives an incoming call message from the parent device 102, the child device 231 directly links to the parent device 102. A channel establishment request may be sent.

The base station communication control unit 113 includes a slave unit 231 and transmits an incoming call message to the entire mobile station group, which is a slave unit of the master unit / slave telephone device 101. Thereafter, similar to step S407, call setting and secret key setting are performed based on the PHS communication standard (step S408).
The slave unit 231 transmits a calling message to the master-unit / slave-functioning telephone device 101 at the same time as its own judgment, and at the same time causes the ringer to ring. Due to the off-hook of the child device 231, the child device 23
1 transmits a response message to the master / slave device / telephone device 101. When the base station receiving unit 112 receives the call and response message from the child device 231, the base station communication control unit 113 passes the call / response reception notification to the mobile station communication control unit 123 (step S409).

The mobile station communication unit 120 has the mobile station transmission unit 12
A call and response message is transmitted from 1 to the base unit 102 (step S410). Telephone device 101 which also serves as a parent device and a child device
Base unit 102 that received the call and response message from
Sends a call and response message to the child device 220, and also sends a response confirmation message notifying that the call is provided to the parent device / telephone device / telephone device 101.

When the mobile station receiver 122 receives the response confirmation message from the base unit 102, the mobile station communication controller 12
3 passes the response confirmation reception notification to the base station communication control unit 113, and the base station transmission unit 111 transmits the response confirmation message to the handset 231 (step S411). Transfer of user information between the base station communication control unit 113 and the mobile station communication control unit 123 is started in the parent device / slave device telephone device 101, and a transition is made to a communicating state (step S412).

Further, when the telephone device 101 also serving as a parent device and slave device connects a call between the slave device 231, the slave device 232, ... Registered to itself, the base station communication unit 110 causes the conventional communication. Since it is possible to connect a telephone call between each child device in the same manner as the connection control of the parent device, description thereof will be omitted here. As described above, according to the present embodiment, the master-slave / telephone device 101 functions as a slave device managed by the higher-level base station as a mobile station, and a master device that controls a plurality of mobile stations as a base station. The communication path can be hierarchically established. Therefore, it can be easily incorporated into an existing parent-child cordless telephone system, and communication from the parent device 102 can be performed with respect to the child devices 231 and 232 that are outside the movement management area of the parent device 102. You can connect paths. As a result, as compared with the case where a slave unit is added by providing a new base station, the slave unit 231 and the slave unit 23 in the parent-child cordless telephone system are saved without the trouble of adding a wired line.
The two mobile station management areas can be easily expanded.

Further, between the slave unit 231, the slave unit 232, ... Of the master unit slave unit telephone device 101, independently of the master unit (base station) 102 via the master unit slave unit telephone unit 101. Since the communication path can be established, as compared with the parent-child cordless telephone system that does not include the parent-child cordless telephone device 101, the entire parent-child cordless telephone system that includes the parent-child cordless telephone device 101 simultaneously The number of lines (channels) that can be connected and the number of combinations thereof can be increased.

[0049]

With the above structure, according to the present invention as set forth in claim 1, by registering the own station in the parent machine, the telephone machine also serving as the parent machine can be wirelessly connected to the parent machine of the own station. The communication path can be set, and by registering the slave unit to the own station, the wireless communication path can be set to the slave unit of the own station. The machine can be easily incorporated into a parent-child wireless transmission system.

Further, the telephone device which also serves as the parent device and the child device is provided with the parent device through the first communication path and the fourth communication path, or through the second communication path and the third communication path. Since it is possible to establish a wireless hierarchical communication path between a child device and a child device, the number of child device combinations that can be simultaneously connected in the entire parent-child wireless transmission system is determined by the number of child devices registered in the own station. The mobile station management area of the parent device, which can be expanded by the number of devices and is defined as a settable distance of the second communication path or the fourth communication path, is set to the first communication path or the third communication path. It can be expanded by the distance of.

Further, by the lower communication path setting means, the first
And a third communication path can be set, and user information can be set between the slaves of its own station independently of the master via the first communication path and the third communication path. Since it is possible to send and receive, it is possible to set a new communication path between the slaves of the own station via the own station, in addition to the communication path that can be set by the parent machine to which the own station is registered at the same time. be able to. Therefore,
It is possible to increase the number of handset units and the number of combinations that can be simultaneously talked in the system.

Furthermore, since the master unit / slave unit telephone device is a wireless mobile station which is connected to the master unit through the second communication path or the fourth communication path by registering with the master unit, the telephone device of the present invention is used. Compared to the case of expanding the number of slave units in the master-slave wireless transmission system by registering slave units in the master unit slave unit telephone device and registering slave units in the master unit that is added by wired connection, It is possible to expand the number of slave units in the parent-child wireless transmission system at a low cost.

According to the telephone device also serving as the parent device and slave device according to the second aspect, the same effect as that of the telephone device also serving as the parent device and slave device according to the first aspect can be obtained in the personal handyphone system. According to the master / slave combined use telephone device of the third aspect, the same effect as the master / slave combined use telephone device according to the first aspect can be obtained in the personal handyphone system.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a parent device / slave device telephone device 101 according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an example of the configuration of a parent-child cordless telephone system including a parent device / telephone device / telephone device 101 according to the present embodiment.

FIG. 3 is a communication sequence diagram showing a processing procedure of the parent device / slave device telephone device 101 when a connection request is made from the child device 231 to the child device 220.

FIG. 4 is a flowchart showing a processing procedure in steps S302 to S307 of FIG.

FIG. 5 is a communication sequence diagram showing a processing procedure of the parent device / telephone device / telephone device 101 when a connection request is issued from the child device 220 to the child device 231.

FIG. 6 is a flowchart showing a processing procedure in steps S401 to S407 of FIG. 5 of the parent device / telephone device / telephone device 101.

FIG. 7 is a block diagram showing a connection relationship of a conventional parent-child cordless telephone system.

FIG. 8 is a diagram conceptually showing an example of a conventional multi-layer wireless transmission system.

[Explanation of symbols]

 Reference Signs List 101 Master device Slave device / telephone device 102 Master device 103 Slave device 110 Base station communication unit 111 Base station transmission unit 112 Base station reception unit 113 Base station communication control unit 120 Mobile station communication unit 121 Mobile station transmission unit 122 Mobile station reception unit 123 mobile station communication control unit 130 final partner station collation unit 131 called station determination unit 132 PS number storage unit

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Claims (3)

[Claims] 1. A registration means for registering a plurality of mobile stations as slaves of its own station, and a subordinate communication for setting a first wireless communication path between itself and the slaves registered in its own station. A path setting means, a higher-level communication path setting means for setting a wireless second communication path between the self-station and a master unit in which the self-station is registered as a slave unit, the first communication path or the first communication path When the final communication partner station of the communication path of No. 2 is not its own station, the called station judgment means for judging whether or not the final communication partner station is a slave unit registered in the own station, and the called station judgment means. When it is determined that the final communication partner station is a slave unit registered in the own station, the lower communication path setting means sets a third communication path between the own station and the final communication partner station. Then, the receiving station determination means does not have the final communication partner station from the first communication path as a slave unit registered in the own station. If it is determined that the higher communication path setting means sets the fourth communication path between the own station and the master unit of the own station, the communication path setting control means, the first communication path and the third communication path. Between the second communication path and the fourth communication path, or between the second communication path and the third communication path,
A base unit / slave unit telephone device, comprising: a user information transfer unit that transmits user information received via one communication path via the other communication path. 2. The telephone set as a parent / slave unit as claimed in claim 1, wherein the master unit is a base station in a personal handyphone system, and the slave unit is a mobile station in a personal handyphone system. 3. The registration unit includes a PS number storage unit that stores the PS number of a mobile station that is a slave unit, and the called station determination unit is a call setup message received via the first communication path. Alternatively, the PS number identifying section for identifying the PS number of the final communication partner station from the incoming call message received through the second communication path, and the PS number identified by the PS number identifying section are stored in the PS number storage section. 3. The master / slave phone as a master unit according to claim 2, further comprising: a determination unit that determines whether or not the last communication partner station is a slave unit registered in the local station depending on whether or not the master unit / slave unit. apparatus.