JPS63204928A - Connecting method for call of mobile communication - Google Patents

Abstract

PURPOSE:To decrease the number of connecting functions necessary for call connection and to reduce logical hardwares by recognizing a local connection call and an incoming transfer connection call as an outgoing connection call and an incoming connection call respectively and executing the call connection by combining the outgoing connecting function and the incoming connecting function. CONSTITUTION:The respective call connections such as outgoing connection call, incoming connection call, local connection call and incoming transfer connection call in a mobile communication are realized by combining two functions such as the outgoing connecting function and the incoming connecting function. Namely, mobile terminals 1 and 2 are connected with radio base stations 7 and 8, which is connected with a speech path device 11. And a mobile communication exchange 16 is constituted in order to include the speech path device 11, a central processing device 12, a state storage memory 13 and information transfer memories 14 and 15 and the speech path device 11 is connected with fixed terminals 23 and 24 via trunk line exchanges 19 and 20 and through subscriber-line exchanges 21 and 22. Radio zones 3 and 4 are included in the control area 25 of the mobile communication exchange 16 and a folded communication line 26 is connected to the speech path device 11.

Description

[Detailed Description of the Invention] "Industrial Application Field" This invention relates to connection between mobile terminals in mobile communication,
and a method for transferring incoming calls to a mobile terminal.

``Prior art'' Conventionally, in mobile communications, outgoing connections from a mobile terminal to a connected mobile communication exchange, incoming connections from outside the mobile communication exchange to a connected mobile terminal, and the same Connection between mobile terminals in the mobile communication exchange control area (area), call transfer connection that transfers an incoming call to a mobile terminal to another terminal, respectively. It was realized independently as an intra-office connection function and a call transfer connection function. Therefore, since a large number of functions are required for call connection, there is a drawback that the number of logical hardware (memory devices accommodating programs, etc.) to realize the functions increases.

This invention provides an outgoing connection function, an outgoing connection function, an outgoing connection function, an incoming call connection, an incoming call connection, an incoming call transfer connection, and an incoming call transfer connection in mobile communication.
The present invention provides a call connection method realized by a combination of two incoming call connection functions.

"Means for Solving the Problems" According to the present invention, intra-office connections for connecting mobile terminals within the same mobile communications exchange control area and mobile terminals within the control area of the mobile communications exchange are provided. There are two types of connections: call forwarding connections that transfer incoming calls outside the mobile communications exchange; control of the mobile communications exchange ÷ outgoing connection function from the mobile terminal at the rear to the outside of the mobile communications exchange; The combination of the incoming call connection function from the mobile terminal to the mobile terminal is achieved by mutually exchanging outgoing connection information and incoming connection information, taking into account whether the connection is within the local station or the incoming call transfer connection.

In the prior art, the above-mentioned intra-office connection and call transfer connection are independently realized by an intra-office connection function and a call transfer connection function, but the present invention does not need to use these functions.

"Example" FIG. 1 is a diagram explaining the invention in detail.

The constituent mobile terminals 1 and 2 are located in wireless zones 3 and 4, respectively,
Wireless base stations 7 and 8 via wireless channels 5 and 6, respectively
connected to. The wireless base stations 7 and 8 each have a communication line 9.
, 1o, and constitutes a mobile communication exchange 16 including the communication path device 11, a central processing unit 12, a state storage memory 13, an information transfer memory 14, 15, and the like. The communication path device 11 is a communication line 17.18
respectively, and further through trunk exchanges 19 and 20,
The fixed terminal 2 is connected to the fixed terminal 2 through the subscriber line exchange 21 and 22.
3.24 respectively.

Radio zones 3 and 4 are control areas 25 of mobile communication exchange 16
A return communication line 26 is connected to the communication path device 11.

When a mobile terminal 1 located in the wireless zone 3 within the local connection control area 25 makes a call to a mobile terminal 2 located in the wireless zone 4 within the same control area 25, the central processing unit 12 , recognizes that it is an intra-station connection, and connects the wireless channel 5, wireless base station 7, communication line 9, communication path device 11 . Return communication line 26, communication path device 11, communication line 10. A call connection to the mobile terminal 2 is started via the radio base station 8 and the radio channel 6 route.

At this time, the central processing unit 12 includes the mobile terminal 1, the radio channel 5, the radio base station 71, the communication line 9, the communication path device 11. The parts connected along the route of the return communication line 26 are not connected from the call path device 11 to the return communication line 26, but are connected from the call path device 11 to the communication line 17, the trunk exchange 19, the subscriber exchange 21 . It is connected to the fixed terminal 23. In order to recognize the outgoing connection call from the mobile terminal 1 to the fixed terminal 23, and the return communication line 261, the communication path device 1
1. Communication line 10. The connection between the wireless base station 8, the wireless channel 6, and the mobile terminal 2 is not connected from the loopback communication line 26 to the communication path device 11, but instead is connected to the fixed terminal 24, the subscriber line exchange 22, and so on. Trunk switch 20. Fixed terminal 2 connected to communication path device 11 through communication line 18
4, in order to recognize it as an incoming connection call to mobile terminal 2,
The state storage memory 13 stores the division of the former as an outgoing connection state and the latter as an incoming connection state.

In this case, an information transfer memory 14 is provided corresponding to the outgoing connection state, and an information transfer memory 15 is provided corresponding to the incoming connection state, and transfer is performed between these two states.1. By writing sending numeric information, response information, disconnection information, etc. into the information transfer memory corresponding to the state of the other party to which the information is to be transferred, these pieces of information are exchanged between the two states.

Regarding the above, please refer to the flowchart in Figure 2.

This will be explained more specifically. When the central processing unit 12 confirms that the call is within its own station (S,), the call is divided into an outgoing connection call from the mobile terminal 1 to the fixed terminal 23 and an incoming connection call from the fixed terminal 24 to the mobile terminal 2, as described above. as state memory memory 1
3 (S2). The central processing unit 12 reads the status memory 13, and in this case, the outgoing connection function operates first to write the outgoing numeric information for the mobile terminal 2 into the information transfer memory 15 (S3), and also the outgoing line, that is, the wireless Channel 5 and communication line 9 are set (S4). In this state, mobile terminal 1 is in a state similar to that of calling mobile terminal 2, that is, it is in a state of waiting for a response (
S5).

On the other hand, the information memory 15 is read out periodically (S6), and since the incoming connection call to the mobile terminal 2 is stored in the previous step S3, the terminal is moved from the fixed terminal 24 to process the incoming connection call. As a process for the call reaching the terminal 4, the receiving side line, that is, the wireless channel 6 and the communication line 10 are set (S7), and the system enters a calling state, that is, waiting for a response from the mobile terminal 2 (S8).

When a response from the mobile terminal 2 is received (S,), it learns that the call is a split call by referring to the state storage memory 13, and writes the response information to the information transfer memory 14 (S).
1o) A call is in progress (S4.).

The central processing unit 12 reads the information transfer memory 14.
, 2) , the response is sent to mobile terminal 1, and mobile terminal 1
and the communication between the two parties becomes busy (S13).

When the call ends and mobile terminal 1 turns off the hook switch,
This is received by the central processing unit 12 (S, 4), and disconnection processing such as releasing the communication channel 5 and communication line 9 is performed (S15). Furthermore, the state storage memory 13 is referred to to learn that the call was split, and the disconnection information is written in the information transfer memory 15 (S, 6).

When the periodic read to the information transfer memory 15 shows that the call has been disconnected (S, 7), the radio channel 6
, a disconnection process such as releasing the communication line 10 is performed, and this process ends (Sf8).

By making the connection in this way, the mobile communication exchange 1
6, it is possible to realize call connection within the own office by combining the outgoing connection function and the incoming connection function without being aware of the connection state within the own office.

Call Forwarding Connection If the mobile communications exchange 16 is instructed to forward an incoming call to the mobile terminal 1 to the fixed terminal 24, and an incoming call from the fixed terminal 23 to the mobile terminal 1 occurs, the central processing unit 12 recognizes that it is a call transfer connection, and connects the subscriber line exchange 21, the trunk exchange 19, and the communication line 17. A call connection to the fixed terminal 24 is started via the path of the communication path device 11, the return communication line 26, the communication path device 11-1, the communication line operator 8, the trunk switch 20, and the subscriber line switch 22.

At this time, the central processing unit 12 connects the fixed terminal 23, the subscriber exchange 21, the trunk exchange 19, the communication line 17, the call path device 11, and the return communication line 26 to the call path device. Instead of connecting from #11 back to the communication line 26, one call connection #11 is further connected to the communication line 9. Radio base station 7° is connected to radio channel 5 and mobile terminal 1. In order to recognize an incoming connection call from the fixed terminal 23 to the mobile terminal 1, and the return call line 26 and the call path device 1.
1. Communication line 18, trunk switch 20. Subscriber line exchange 22. The connected portion of the route of the fixed terminal 24 is not the connection from the return call line 26 to the call path device 11, but the connection between the mobile terminal 2, the wireless channel, I+/6, and the wireless base station 8.
In order to recognize an outgoing connection call from the mobile terminal 2 to the fixed terminal 24 connected from the communication line 10 to the communication path device 11, the state storage memory 13 and the information transfer memory 14.15 are used. By performing the same operations as when connecting within its own station, the mobile communication exchange 16 realizes call connection for incoming transfer calls by combining the outgoing connection function and the incoming connection function without being aware of the incoming call transfer connection status. Is possible.

To explain this in more detail, for example, as shown in FIG. 2, when the central processing unit 12 confirms that the current call is a call transfer call (S,), the call is divided into is stored (S2). In this case, the incoming call connection function operates first, and the central processing unit 12 learns that the call is call splitting and requests transfer of the call to the fixed terminal 24, and sends the received/numeric information of the fixed terminal 24, etc. The information is written to the information transfer memory 14 (S21). At this time, the fixed terminal 23 side is in a state where the fixed terminal 24 side is being called (
S8). By periodically reading the information from the information transfer memory 14 (s2□), the communication line 18 is set up as a connection process from the mobile terminal to the fixed terminal 24, and the read numerical information is then transferred to the station, that is, the trunk switch 20, and the subscriber. line 22
(S23). This will result in a calling state (S
5).

When a response is received from the fixed terminal 2'4 (S24).

The response information is written to the information transfer memory 15 (S25
). By periodic reading to the information transfer memory 15 (S
26) When the response information is read out, it is transmitted to the previous station, that is, the trunk line exchange 19 and the subscriber line exchange 21 (527), and the call is in progress (S4).

When the fixed terminal 23 turns off the hook switch and receives a disconnection signal (S28), it performs disconnection processing such as releasing the line (S2), and writes the disconnection information to the information transfer memory 14 (Sxo). When the disconnection information is read out by periodic reading from the transfer memory 14 (S3.
), disconnection processing such as line release is performed, and the processing for this call ends (S5□).

``Effects of the Invention'' As explained above, in mobile communications, according to the present invention, a local connection call and an incoming transfer connection call are recognized as an outgoing connection call and an incoming connection call, respectively, and the outgoing connection function and the incoming connection function are performed. Since call connection is realized in combination with
This has the advantage of requiring less logical hardware (such as a memory device that accommodates a program) to realize this.

[Brief explanation of the drawing]

FIG. 1 is a block diagram for explaining the first embodiment of the present invention, and the second reason shows an example in which local connection calls and incoming call transfer calls can be realized by combining the outgoing connection function and the incoming connection function. This is a flowchart.

Claims (1)

[Claims] (1) In a mobile communication system that has a mobile communication exchange that enables connections between mobile terminals via wireless lines and fixed terminals accommodated in fixed networks, and between mobile terminals, the originating mobile terminal and the terminating mobile terminal are the same. an intra-office connection that connects mobile terminals to each other when they are within the control area of a mobile communications exchange; and a call forwarding connection that transfers incoming calls to mobile terminals that are within the control area of a mobile communications exchange to outside the mobile communications exchange. and an outgoing connection function from a mobile terminal in the mobile communication exchange control area to the outside of the mobile communication exchange, and an incoming connection function from outside the mobile communication exchange to the mobile terminal, whether it is an internal connection or an incoming call transfer connection. A mobile communication call connection method, characterized in that it is realized by a combination of the outgoing connection function and the incoming connection function, by providing a function for mutually exchanging outgoing connection information and incoming connection information.