JPH0443792A - Incoming call system for radio telephone system - Google Patents

Abstract

PURPOSE:To devise the system such that plural radio telephone sets belonging to one zone ring for an incoming call simultaneously when a group incoming call signal is received and compares it with information of a radio one number stored in a 2nd storage means and sends a control signal when they are matched. CONSTITUTION:When a radio line controller (RCU) 37 detects an incoming call 10 to one specific trunk line 36C corresponding to a radio zone 38C, an RCU sends a radio zone number (CEG-ID) 11 to radio connection devices CE1 - CE3. The CE 1 sends a group incoming call (CEG-ID) 21 representing the designation of zone to radio telephone sets RT1 - RT3 resident in the radio zone 38C. When the group incoming code of the radio zone stored and belonging at present is matched with the incoming group code, the RT1 - RT3 starts bell ringing simultaneously. Thus, plural radio telephone sets belonging to one zone simultaneously.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a call termination method for a wireless telephone system, and more particularly to a call termination method for a wireless telephone system used in a wide area cordless telephone system having a plurality of wireless zones.

[Conventional technology]

Generally, a wide-area cordless telephone system is used in which a large number of wireless telephones (referred to as RTs) can each be used as one of the local telephones in a service area within a wide area of a business office. This wide-area cordless telephone system is the second
As shown in the system configuration diagram in the figure, the service area 39
is divided into multiple (four in the figure) zones 38A to 38D, and for example, zone 38C has wireless connection devices CEI to CE.
3 are distributed and arranged. In addition, wireless telephone RTL~
RT3 shares the wireless connection devices CEI to CE3 and is wirelessly connected to any nearby wireless connection device. In order to share the wireless connection devices CE1 to CE3, it is necessary to interpose one wireless line control unit (referred to as RCU) 37 between each wireless telephone and the public line or private branch exchange 35. The radio line control device 37 constantly registers and updates location information indicating which wireless phone is currently in the wireless zone around which wireless connection device. The wireless telephone is connected to each terminal of the public line or private branch exchange 35 corresponding to the wireless telephone of the wireless connection device in the wireless zone where the wireless telephone is currently located.

Conventionally, the incoming call method of this type of wireless telephone system is that when a call is received from a public line or the central office lines 36A to 36D of the private branch exchange 35, a t-terminal number uniquely assigned to each corresponding wireless telephone is stored. Incoming call connection processing was performed for only one wireless telephone set using the wireless connection device waiting for the wireless control channel of the wireless zone in which the location of that wireless tE telephone was registered.

Next, this incoming call connection process will be explained with reference to the sequence diagram shown in FIG. Figure 3 shows the wireless connection device CE in the same wireless zone.
1. The radio line control unit RCU detects an incoming call 40 to the radio telephone RT1, which shows the incoming call connection processing sequence for the radio telephone RT1 whose location is registered in the radio telephone group in which the radio connection device CE2 is installed. In this case, an incoming call signal 41 including a telephone number (Rte 11-ID) uniquely assigned to the radio telephone RTI is sent to the radio connection device CE1 waiting for the radio connection control channel. CEI is responsible for this Rtall-I for RTI.
Send D to RTI and send ACK42 from CEI to R.
0 to reply to the CU as an understanding signal.Then, the control wait designation moves to C20, so the RCU sends a control wait designation 43 to C20.
By sending a control channel waiting designation response 44 from the C20, the wireless connection channel waiting is moved to the C20. On the other hand, when receiving the incoming call response 52 of Rtell-ID from RTI to CEl, CEI sends this incoming call response 45 to RCU.
send. From now on, incoming call channel designation between CEI and RTI 53
, completion of channel switching of the channel specified by RTI 54,
An interference detection completion message 55 indicating that the designated communication channel is free of interference is sent. The CEI sends connection completions 46 for these designated channels to the RCU. Upon receiving this connection completion, the RCU sends a bell ringing signal 47 to the CEl, and furthermore, the CEI finally sends a bell ringing signal 56 to the Rtell.
It started making a sound. In this way, in the conventional system, the radio line control unit RCU has a storage means of location information including updates to which the called party's radio telephone belongs, and also confirms the completion of connection between the radio connection device and the specified radio telephone. After that, the radio that was identified was ringing the bell only on the handset.

[Problem to be solved by the invention]

In the conventional radio telephone system described above, the incoming call method is such that the radio line controller stores the telephone number and location information uniquely assigned to each radio telephone, and when the radio line controller detects an incoming call on one central office line. Since the incoming call is connected to one corresponding wireless telephone and the bell rings, there is a drawback that group incoming calls cannot be made in the wired telephone system.

SUMMARY OF THE INVENTION An object of the present invention is to provide an incoming call method for a radio telephone system that allows a plurality of radio telephones belonging to at least one of a plurality of zones controlled by a radio line control device to simultaneously ring an incoming bell.

[Means to solve the problem]

The incoming call method of the wireless telephone system of the present invention includes a plurality of wireless connection devices placed in each of wireless zones in which a service area is divided into a plurality of zones, and communication with the wireless connection devices located at a point in time in the wireless zone. In a call termination method of a wireless telephone system having a plurality of wireless telephones and a radio line control device that controls wireless connection devices belonging to the plurality of wireless zones and performs incoming connection processing from a fixed telephone network to the wireless telephone, The wireless line control device includes a first storage means for storing a wireless zone in association with any specific office line connected to the fixed telephone network, and a first storage means that stores information in the first storage means. means for transmitting a group incoming call signal indicating a radio zone number corresponding to the office line on which the incoming signal was received, and a second means for transmitting a group incoming call signal indicating a radio zone number corresponding to the office line where the incoming call signal was received; storage means, and
determining means for receiving the group incoming call signal and comparing it with the wireless zone number information stored in the second storage means and transmitting a control signal if they match, the control signal of the determining means; The wireless telephone that outputs the message starts ringing at the same time.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a sequence diagram of an embodiment of the present invention. First, the configuration of the wide-area cordless telephone system of this embodiment has the following configuration in addition to the above-mentioned explanation of FIG. 2.
For example, wireless connection devices CEI, wireless connection devices CE2. The wireless connection device CE3 creates the same wireless zone, and the wireless line control unit (RCU) 37 stores that a specific office line (for example, 36C) corresponding to the wireless zone 38C is connected. In addition, a wireless telephone RT that stores a wireless zone number (CEG-ID) and a telephone number uniquely assigned to each wireless telephone.
1, a radio telephone RT2, and a radio telephone RT3.

Next, the incoming call method of the wireless telephone system of this embodiment will be explained with reference to FIG. When the RCU detects an incoming call 10 on one specific office line 36C corresponding to the wireless zone 38C,
CE the wireless zone number (CEG-ID) 11 from the RCU
Send to I~CE3. Upon receiving the response signal ACK12 from CEl, the RCU sends a control channel wait designation 13 to the next CH2, and upon receiving the control CH wait designation response 14 from CH2, shifts the wait state to CH2.Meanwhile, CEl sends a control channel wait designation 13 to the next CH2. A group incoming call (CEG-ID) 21 indicating zone designation is sent to RTI to RT3 located in the area. RT1～
In the RT3, when the stored group incoming code of the wireless zone currently being used matches the group incoming code sent, the three RTIs to RT3 start ringing the bells at the same time.

Next, if it is clear that RT3 is not applicable for incoming calls,
When the user performs the on-hook operation 31 on the RT3 while the bell is ringing, the ringing of the incoming group call ring can be stopped, and the user can receive services such as making a call as before.Next, the user of the RTI corresponding to the incoming call When the off-hook operation 32 is performed, an off-hook signal 22 is sent to the CEL, and the call channel designation signal 23A containing the Rtell-ID and CEG-ID is sent from the CEL to the RTI.
2, the same call channel designation signal 23A is sent as signal 23B. Since RT2 does not match its own stored ID number, it stops ringing the bell at this point. RTl
After receiving the above-mentioned call channel designation 23A, it sends normal channel switching completion 24 and interference detection completion 25 to CEI. CEl
notifies the RCU that the connection with the RTI has been completed 16, and finally the connection between the public line or private branch exchange 35 and the radio telephone RTI is completed.

〔Effect of the invention〕

As explained above, the present invention provides wireless connection devices that are arranged in multiple zones within a service area, and a wireless line control device installed between the wireless connection device and the fixed telephone network that controls one or more of the wireless connection devices. In a wireless telephone system to control,
The radio line control device is provided with means for storing a specific station line and a radio zone in correspondence, and the radio telephone is provided with means for storing a radio zone number to which the radio telephone belongs and a telephone number uniquely assigned to each radio telephone, When a radio line controller detects an incoming call to a specific office line, it sends a group incoming call signal to one wireless connection device in the corresponding wireless zone, and sends a group incoming signal to the bells of multiple wireless telephones that have memorized the wireless zone. This has the effect of allowing the sounds to start at the same time. In addition, since the user of the non-AT packing machine other than the one receiving the incoming call has a function to stop the bell ringing by on-hook operation, there is an effect that unnecessary ringing of the bell can be prevented.

[Brief explanation of the drawing]

Fig. 1 is a sequence diagram of an embodiment of the present invention, Fig. 2 is a system configuration diagram showing a method of receiving a call in a general wireless telephone system, and Fig. 3 is a sequence diagram showing a method of receiving a call in a conventional radio telephone system. It is. 10...Incoming call, 11.21...Group call, 12
...ACK, 13... Control channel wait specification, 14...
- Control channel wait designation response, 15.22...off hook, 16...connection complete, 23A, 23B...call channel
Designation, 24... Channel switching completed, 25... Interference detection completed, 31... On-hook operation, 32... Off-hook operation, 35... Public line or private branch exchange, 36A-3
6D... Office line, 37... Radio line control unit (RCU)
), 38A-38D...Zone, 39...Service area, CEI-CE3...Telephone connection device, RTI-
RT3...Radio telephone.

Claims (1)

[Claims] 1. A plurality of wireless connection devices arranged in each of a wireless zone in which a service area is divided into a plurality of zones, and a plurality of wireless connection devices located at a certain point in the wireless zone and communicating with the wireless connection devices. In a call receiving method of a wireless telephone system having a telephone set and a radio line control device that controls wireless connection devices belonging to the plurality of wireless zones and performs incoming call connection processing from a fixed telephone network to the wireless telephone set, the wireless line A control device stores a first storage means for storing any specific office line connected to the fixed telephone network in correspondence with the wireless zone, and a control device stores information about an incoming signal based on information in the first storage means. means for transmitting a group incoming call signal indicating a wireless zone number corresponding to the station line, and second storage means for storing the wireless zone number in which the wireless telephone is located and its own unique telephone number; ,
determining means for receiving the group incoming call signal and comparing it with the wireless zone number information stored in the second storage means and transmitting a control signal if they match, the control signal of the determining means; A method for receiving a call in a wireless telephone system, characterized in that the wireless telephone that outputs the signal starts ringing the bell at the same time. 2. A call receiving system for a radio telephone system according to claim 1, wherein the radio telephone having said second storage means and said determination means has means for manually stopping ringing of a bell. 3. The radio telephone having the second storage means and the determination means receives the radio zone number and the telephone number unique to the radio telephone sent by the radio line control device via the radio connection device, and 2. A call receiving system for a wireless telephone system according to claim 1, further comprising means for automatically stopping a ringing of a bell which is operating when the number is different from the number.