JPH02276343A - Call controller for packet switchboard - Google Patents

Abstract

PURPOSE:To perform communication without the influence to the calling condition of the other party by controlling general calls in accordance with line capacity total sum data for general call and controlling voice calls in accordance with that for voice call read out from a storage part of the overall communication capability for voice call. CONSTITUTION:When call requesting packet sent form the subscriber terminals T1 to TN reach a subscriber information adding part 14, this part 14 reads out call classification information and communication capability information corresponding to subscriber terminals T1 to TN from a subscriber information storage part 13 and adds the information to the call requesting packets to send them to a relay line processor 2. A call connection control part 25 reads out the data of line capacities assigned to subscriber terminals from communication capability information and adds this data to line capacity total sum data for general call. When an inputted call requesting packet is sent from a subscriber terminal for voice call, its line capacity data is added to the line capacity total sum data for voice call stored in the storage part 24 of the overall communication capability for voice call.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a call regulation device for a packet switch that regulates call connections by distinguishing between general calls and voice calls.

[Prior Art] Conventionally, in a packet switch, calls are connected in the order in which calls are made, and general calls (data) and voice calls are not distinguished.

Further, the allocation of line capacity to subscriber terminals for general calls and subscriber terminals for voice calls is set through negotiation at the time of call connection. Here, the voice call terminal uses the allocated line at maximum communication capacity in order to reduce delay time. On the other hand, the line capacity normally allocated to terminals for general calls is
Although the line capacity is large compared to the line capacity allocated to the voice call terminal, the -i call terminal does not necessarily use the allocated line to its full communication capacity.

Note that the above-mentioned line capacity refers to communication speed (communication ability) expressed in units of (bps). The following explanation uses the term line capacity.

[Problems to be Solved by the Invention] In the conventional packet switching equipment described above, call connections are made without distinguishing between -i calls and voice calls. If the voice call is occupied, the connection of the voice call will be refused even if the voice call is made.

Furthermore, as mentioned above, the general call terminal does not necessarily use the allocated line at one time using its full communication capacity, so there is a drawback that the relay line is not used efficiently.

[Means for Solving the Problems] A call regulation device for a packet switch according to the present invention has the following means.

a) Subscriber information storage that stores call type information indicating whether the subscriber terminal is for general calls or voice calls and communication capability information indicating the line capacity of the trunk line allocated to the subscriber terminal. Part b) Subscriber information that adds call type information and communication capability information of this subscriber terminal read from the subscriber information storage unit to a packet received from the subscriber terminal and sends the packet to the trunk line processor via the system bus. Additional section, C) General call total communication capacity storage section that stores general call trunk line capacity summation data that is the sum of the line capacities of trunk lines allocated to subscriber terminals for general calls; a voice call total communication capacity storage unit that stores voice call relay line capacity summation data that is the summation of the line capacity of relay lines allocated to subscriber terminals; and e) a call connection regulation unit that performs call regulation.

[Function] The call connection regulation unit performs call regulation for general calls according to the general call line capacity summation data read from the general call total communication capacity storage unit, and also controls the voice call line capacity read from the voice call total communication capacity storage unit. Call regulation of voice calls is performed according to the total capacity data. Therefore, call regulation at subscriber terminals for general calls and voice calls is performed independently based on the line capacity allocated to each, so communication can be performed without being affected by the call origination status of the other. obtain.

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

FIG. 1 is a block diagram showing an embodiment of the call regulation device of the present invention, and FIG. 2 is a system configuration diagram showing the configuration of a packet switching system.

As shown in Fig. 2, exchanges A and B accommodate a plurality of subscriber terminals T1 to TN and are connected by a trunk line 5, and data is transmitted using the packet-soto switching system. . FIG. 1 shows the configuration of a call regulation device of a packet switch installed in the switching center of FIG. 2. In FIG.

In FIG. 1, reference numeral 6 indicates a call regulation device of the present invention. The subscriber line processor 1 accommodates a plurality of subscriber terminals T1 to TN for voice calls and general calls via the subscriber line 4 and the packet multiplexer 15. Reference numeral 11 denotes a system bus transmitting/receiving section that exchanges information with the system bus 3, and 12 a line transmitting/receiving section that exchanges information with the loudspeaker line 4.

A subscriber information storage section 13 stores the following three types of information regarding subscriber terminals accommodated in the subscriber processor 1.

■Call type information indicating whether the subscriber terminal is a general call terminal or a voice call terminal, ■Communication capability information indicating the line capacity allocated to the subscriber terminal, ■Subscriber of the subscriber terminal number.

Reference numeral 14 denotes a subscriber information addition section that adds the above three types of information read from the subscriber information storage section 13 to the information input from the line transceiver section 12 and outputs the resultant information to the system bus transceiver section 11.

Note that a plurality of subscriber line processors (not shown) similar to the subscriber line processor 1 are connected to the system bus 3.

The trunk line processor 2 connects the switching center (
(not shown). 21 is a system bus transmitter/receiver that exchanges information with the system bus 3, and 22 is a relay line transmitter/receiver that exchanges information with the relay line 5. A general call 23 stores general call line capacity summation data, which is the sum of line capacities allocated to general call subscriber terminals among the subscriber terminals accommodated in this call regulation device 6. Similarly, the total communication capacity storage unit 24 is a voice call line which is the sum of the line capacities allocated to voice call subscriber terminals among the subscriber terminals accommodated in the call regulation device 6. This is a voice call total communication capacity storage unit that stores total capacity data. Reference numeral 25 denotes a call connection regulation unit that regulates call connections according to the general call line capacity sum data and the voice call line capacity sum data read from the general call total communication capacity storage unit 23 and the voice call total communication capacity storage unit 24. It is.

Next, the operation will be explained.

(1) Operation when receiving a call request packet When the call request packet sent from the subscriber terminals T1 to TN reaches the subscriber information adding unit 14 via the subscriber line 4 and the line transmitter/receiver 12, the subscriber personal information addition unit 14
reads the call type information and communication capability information corresponding to the subscriber terminals T1 to TN from the subscriber information storage unit 13,
This information is added to the call request packet and sent to the trunk line processor 2 via the system bus transmitter/receiver 11 and the system bus 3.

This call request packet reaches the call connection regulating section 25 via the system bus transmitting/receiving section 21 of the trunk line processor 2.

If the input call request packet is from a general call subscriber terminal, the call connection regulation unit 25 determines whether the input call request packet is from the subscriber terminal based on the communication capability information added to the call request packet. The allocated line capacity data is read out and added to the general call line capacity total data stored in the general ear communication capacity information storage section 23.

On the other hand, if the input call request packet is from a voice call subscriber terminal, it is assigned to that subscriber terminal based on the communication capability information added to this call request packet. This line capacity data is added to the total voice call line capacity data stored in the voice call total communication capacity storage section 24.

Note that the line capacity of the trunk line is allocated in advance to the line capacity for general calls and the line capacity for voice calls based on the ratio of general calls and voice calls that use the trunk line. Therefore, the sum of the line capacities that can be used by the subscriber terminals for -i calls and voice calls is within the allocated line capacity. In other words, the line cannot be used in excess of the allocated line capacity.

As a result, as long as the line capacity used by subscriber terminals for general calls and voice calls does not exceed the allocated line capacity for general calls and voice call line capacity, the call connection regulation unit 2
5 is the subscriber terminal T1 to TN that sent the call request packet.
communication, i.e., call connection. The call request packet for which communication is permitted is sent to the relay line 5 via the relay line transceiver section 22. On the other hand, if the capacity of the line used by the subscriber terminal for -i calls and voice calls exceeds the above allocated general call line capacity and voice call line capacity, a call request packet is sent. Subscriber terminals T1-T
N communication is not permitted, that is, call connection is not permitted.

In this way, the operation of receiving the call request packet is performed.

(2) Reception operation of disconnection request packet When the disconnection request packet sent from the subscriber terminals T1 to TN reaches the subscriber information adding unit 14 via the subscriber line 4 and the total line receiving unit 12, the subscriber information Additional part 14
reads the call type information and communication capability information corresponding to the subscriber terminals T1 to TN from the subscriber information storage unit 13,
This information is added to the disconnection request packet and sent to the trunk line processor 2 via the system bus transmitter/receiver 11 and the system bus 3. This disconnection request packet reaches the call connection regulating section 25 via the system bus transmitting/receiving section 21 of the trunk line processor 2. If the input disconnection request packet is from a general call subscriber terminal, the call connection regulation unit 25 determines whether the input disconnection request packet is assigned to that subscriber terminal based on the communication capability information added to the disconnection request packet. The line capacity is read out, and this line capacity data is subtracted from the general call relay line capacity total data stored in the general ear communication capacity information storage section 23. On the other hand, if the input disconnection request packet is from a voice call subscriber terminal, the line capacity allocated to that subscriber terminal can be determined from the communication capacity information added to this disconnection request packet. This line capacity data is then subtracted from the voice call relay line capacity total data stored in the voice communication capacity information storage unit 24.

In this way, the operation of receiving the disconnection request packet is performed.

By receiving the call request packet and disconnection request packet as described above, call regulation is controlled for -/ffl calls in accordance with the general call line capacity and for voice calls in accordance with the voice call line capacity.

[Effects of the Invention] As explained above, according to the call regulation device for a packet switch of the present invention, general calls are handled according to the general call line capacity.
Voice calls are individually restricted according to the line capacity for voice calls. Therefore, even if a large number of general calls are in communication, voice line capacity is secured separately, so unlike before, the trunk line is occupied only by general calls, and voice calls cannot be made. This can prevent you from not being able to make calls.

Additionally, subscriber terminals for general calls do not necessarily use the allocated line to its full communication capacity, so
It becomes possible to accommodate more general call subscriber terminals in a packet switch than the general call line capacity set for general call subscriber terminals. Therefore, by accommodating more general call subscriber terminals in a terminal packet switch than the general call line capacity mentioned above, voice calls can be made as described above, and compared to the conventional method, It becomes possible to improve the usage efficiency of trunk lines.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a system configuration diagram showing the configuration of a packet switching system. 1... Subscriber line processor, 2... Trunk line processor, 6... Call regulation device, 13... Subscriber information storage section, 14... Subscriber information addition section, 23... General Total call communication capability storage unit, 24...Voice call total communication capacity storage unit, 25...Call connection regulation unit, T1 to TN...Subscriber terminal.

Claims (1)

[Scope of Claims] A call regulation device for a packet switch in which a subscriber line processor accommodating a subscriber line and a trunk line processor connected to a trunk line are connected to a system bus, the subscriber line processor comprising: a subscriber information storage unit storing call type information indicating whether the subscriber terminal is for general calls or voice calls and communication capability information indicating the line capacity of the trunk line allocated to the subscriber terminal; a subscriber information addition unit that adds call type information and communication capability information of the subscriber terminal read from the subscriber information storage unit to a packet received from the subscriber terminal and sends the packet to the trunk line processor via the system bus; The trunk line processor is provided with a general call total communication capacity storage unit for storing general call line capacity total data that is the sum of the line capacities of the trunk lines allocated to subscriber terminals for general calls, and a general call total communication capacity storage unit for storing general call line capacity total data, which is the summation of line capacities of the relay lines allocated to subscriber terminals for general calls; A voice call total communication capacity storage unit that stores total voice call line capacity data that is the summation of the line capacity of trunk lines allocated to subscriber terminals, and a call connection regulation unit that carries out call regulation. The regulation section stores information in the general call total communication capability storage section and the voice call total communication capability storage section according to the call type information and communication capability information of the subscriber terminal added to the packet sent from the subscriber line processor. The general call line capacity total data and the voice call line capacity total data are added and subtracted, and the general call is restricted according to the general call line capacity total data read from the general call total communication capacity storage unit, and the voice call total communication capacity is controlled. A call regulation device for a packet switch, characterized in that it regulates voice calls in accordance with total line capacity data for voice calls read from a capacity storage unit.