JPS6238059A - Number control system for packet switching network - Google Patents

Abstract

PURPOSE:To attain station number using '0' or '1' at the number head in numbering plan by designing that letters A-F are used in addition to conventional numbers '1'-'9' for an address at call setting in a packet switching network. CONSTITUTION:A packet form subscriber 100 communicates with a packet switching network 102 via a transmission line 101 An address section 105 in a call setting packet 104 has each digit (4-bit each) 106-1XX. One digit, e.g., 1XX of the address part 105 in the call setting packet 104 consists of 4-bit and represents values up to 15. The numbers '0'-'9' are used as they are and numbers '10'-'15' are used as A-F to recognize letters other than numbers '0'-'9'.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a number control system in a packet switching network, particularly to a number control system at the time of call setup.

[Conventional technology]

Conventionally, when a call is set up by a subscriber to a packet network or from another network, only the numbers n to 9 are entered.

[Problem that the invention seeks to solve]

The conventional number control system described above only allowed 0 to 90 characters for address signals to the network, so station numbers starting with O or 1 could not be used due to the numbering plan, or special requests to the network (for example, inter-network connections) When doing this, there were disadvantages such as the first dial + second dial format and the number of digits becoming long.

[Means for solving problems]

According to the present invention, numbers 0 to 9 and letters A to F are used as values for each digit of an address signal at the time of a call setup request in a packet switching network. A number control method for a packet switching network is obtained, which is characterized in that it is equipped with a means for recognizing numbers A to F as numbers 9 and identifying them as numbers 10 to 15.

〔Example〕

2 shows a connection configuration diagram of a user and a configuration diagram of an address part shown in a packet at the time of call setup.

In the figure, 100 is a packet-type subscriber, 101 is a transmission line, 102 is a packet switching network, 103 is a kerat control module, and 104 is a call setup node (kerat).

105 is the address part in the call setup packet, 106 to 1x
x is each digit (4 bits each) shown in the address field in the call setup packet), 200 is an address (conversion) recognition comparison table,
201 is the call setting information (4 in each part of the address part in the kerato)
The value indicated by the bit, 202, is a character recognized (a replaced) for the value of 201 in the packet g exchange module.

In FIG. 1(a), one digit of the address field 105 in the call setting packet 104, for example, 1XX, is composed of 4 bits, and the value ranges from 0 to 15 as shown at 201 in FIG. 1(bl). As shown at 202 in Figure 1(b), by using O to 9 as they are and reading the values 10 to 15 as A to F, respectively, characters other than 0 to 9 can be expressed. Recognize.

Further, FIG. 2 is a connection configuration diagram of a non-packet type subscriber according to an embodiment of the present invention, and FIG. 3 is a diagram showing an address transmission format at the time of call setup and conversion to a call setup packet.

In the figure, 300 is a non-packet type subscriber.

301 is a transmission path, 302 is a packet switching network, 303 is a packet conversion module, 3041'i packet control module, 305 is a call setup request signal from a non-packet type subscriber, and 306 is a call setup request from a non-packet type subscriber. Address part in the signal, 307 is the call setting packet to the packet control module converted and created by the packet conversion module, 308 is the address part in the call setting packet,
309 is a logical bus connecting the packet conversion module and the packet control module, 310 to 3xx are each digit (e.g. 8 bits) in the address part according to the subscriber's code system, and 400 to 4xx are in the address part of the call setup packet. Each digit (4 bits each), 500 to 5xx is 310 to 3xx
This shows the conversion from 400 to 4xx.

Non-packet type terminal 300 transmits a call setup request signal 305 to packet switching network 302 when requesting call setup. When the packet switching network 302 receives the call setup request signal 305, the packet conversion module 303 analyzes the address section 306 contained therein.

In the packet conversion module 303, the address section 30
Extract the characters (e.g. 8-bit code) constituting each digit (310 to 3
S8 code) and identify its meanings 0-9 and A-F. After identification, the 8 bits (7) O to 9 are converted to 4 bit codes O to 9, the 8 bit characters A to F are converted to 4 bits 10 to 15, and the address in the call setup packet 307 is converted. Set in each digit of section 308.

〔Effect of the invention〕

As explained above, the present invention enables the use of characters O to 9 and A to F in addition to the conventional 0 to 9 as characters that can be used in an address when setting up a call in a packet switching network. This has the effect of making it possible to use station numbers starting with O or 1, and also making it possible to clarify and simplify special access to the network.

[Brief explanation of the drawing]

FIGS. 1(a) and 1(b) show a connection configuration diagram of a packet type subscriber and a configuration diagram of the address part shown in the packet at the time of call setup as an embodiment of the present invention, and FIG. 2 shows a connection configuration diagram of a packet type subscriber as an embodiment of the present invention. FIG. 3 shows an address transmission format and a conversion diagram into a call setting packet when a subscriber sets up a call. 100...Packet type subscriber, 101,30
1...Transmission path, i02, 302...Packet switching network, 103.304...Packet control module, 104...Call setting packet, 1
05...Address part in call setup packet, 10
6 to lxx...Each digit (4 bits each) shown in the address field in the call setup packet, 200...Address (conversion) recognition comparison table, 201...Call The value indicated by 4 bits in each part of the address field in the configuration packet, 202...2 in the packet switching module.
01 value recognition (reading) character, 300...-Non-packet type subscriber, 303...Packet conversion module, 305...Non-packet type mobile device 1
Mi ni Makoto, r-/7NII type tζ5 side wa f Umヮヮ^
e------ Address part in the call setup request signal from the Hidkerato type subscriber, 307...Call setup packet to the packet control module converted and created by the packet conversion module , 308...Address field in call setup packet, 309...Logic bus connecting packet conversion module and packet control module, 310 to 3xx...Subscriber code system Each digit (e.g. 8 bits) in the address field according to
0 to 4XX... Each digit (4 bits each) in the address field of the call setup packet, 500 to 5xx...3
Conversion from 10-3xx to 400-4xx. , /・--・ Agent Patent Attorney Uchihara 1' 5, +□- lρ2 I? (Seki 8 l ward

Claims (1)

[Claims] In packet switching networks, numbers 0 to 9 and letters A to F are used as values for each digit of the address signal when requesting call setup;
1. A number control system for a packet switching network, characterized in that the number control system is equipped with a means for recognizing numbers A to F as numbers 9 and 10 to 15.