CN1870762A - Method and system for transmitting signalling message - Google Patents

Abstract

The invention discloses a method for distributing a signaling message, comprising: a switch receiving the signaling message, the signaling message including a processing entity identifier; the switch sending the signaling message to a processing entity corresponding to the processing entity identifier. The present invention also provides a switch, including: a signaling message distribution device, used for distributing signaling messages, the signaling message has a processing entity identifier; a signaling message generating device, used for generating signaling messages, the The signaling message includes the processing entity identification. According to the present invention, by making the call reference CR unit of the QSIG message packet have a processing entity identifier, the switch can directly distribute the QSIG message to the returned signaling message, thereby greatly shortening the query matching time and improving the processing of the system Performance, thus further improving the real-time performance of the protocol.

Description

A method and system for signaling message distribution

technical field

The present invention relates to a communication technology, in particular to a method and device for distributing signaling messages.

Background technique

As shown in FIG. 1 , the QSIG (Unified International Enterprise Network Signaling Standard) signaling was proposed by ECMA (European Computer Association), and this signaling is a signaling standard between switch nodes in a private network. QSIG signaling can provide intercommunication functions for telephones and various integrated services among PINXs (private integrated services network switches) in the private switching network.

QSIG is developed from ITU-T's Integrated Services Digital Network (ISDN). As shown in Figure 2, its protocol structure is similar to ISDN's No. 1 Digital Subscriber Signaling DSS1 protocol, and all follow the ISO reference model.

As shown in Figure 3, the basic call service control of the QSIG protocol is very similar to the Q931 of ISDN, and the basic call service control process of the QSIG protocol will be briefly described below with reference to Figure 3 .

Step 1, call establishment;

Step 2, call connection;

Step 3, ringing;

Step 4, connect;

Step 5, connection confirmation, at this time the call is established, and the user terminal can communicate on the established path;

Step 6. After the user terminal finishes talking, disconnect the connection;

Step 7, release the resources occupied by this call;

Step 8, the release is completed.

In each signaling interaction process of the above-mentioned call service control process, PINX needs to query the call instance information to determine the call and control the call, such as performing operations such as connection and release. In this way, in the process of signaling interaction, it is necessary to query call instance information and perform operations such as judgment. It takes a long time, thereby reducing the quality of the communication system.

Contents of the invention

The purpose of the present invention is to provide a method and device for distributing signaling messages, which can shorten the signaling interaction time, thereby improving the quality of the communication system.

The present invention provides a signaling message distribution method, including:

A. The switch receives a signaling message, where the signaling message includes a processing entity identifier;

B. The switch sends the signaling message to the processing entity corresponding to the processing entity identifier.

The signaling message includes mandatory elements and optional elements.

The processing entity identifier is set in a mandatory element of the signaling message.

The mandatory units include a signaling identifier unit, a call reference unit, and a message type unit.

The processing entity identifier is set in the call reference unit.

Before performing step A, it is also performed: the switch sets the processing entity identifier in the signaling message, and the call processing entity identifier corresponds to the call instance, and then sends the generated signaling message to the next-hop switch.

In step A, the switch receives and associates the signaling message with the signaling message sent by the switch to the next-hop switch.

Described step B further comprises:

B1. The switch obtains the processing entity identifier from the signaling message;

B2. The switch sends the signaling message to the processing entity corresponding to the processing entity.

The invention also discloses a device for distributing signaling messages, including:

a receiving unit, configured to receive a signaling message, where the signaling message includes a processing entity identifier;

A distribution unit, connected to the receiving unit, configured to obtain the processing entity identifier according to the signaling message received by the receiving unit, and distribute the signaling message to the processing entity corresponding to the processing entity identifier;

A processing entity is used to process signaling messages.

The invention also discloses a switch, including:

A signaling message distribution device, configured to distribute signaling messages, the signaling distribution device includes:

a receiving unit, configured to receive signaling messages;

A distribution unit, connected to the receiving unit, configured to obtain the processing entity identifier according to the signaling message received by the receiving unit, and distribute the signaling message to the processing entity corresponding to the processing entity identifier, and

a processing entity for processing signaling messages, and

The signaling message generating device is used to generate a signaling message, and the signaling message includes a processing entity identifier corresponding to a call instance.

According to the present invention, by making the call reference CR unit of the QSIG message packet have a processing entity identifier, the switch can directly distribute the QSIG message according to the returned signaling message, thereby greatly shortening the query matching time and improving the processing performance of the system , thus further improving the real-time performance of the protocol.

Description of drawings

Figure 1 shows a networking diagram using the QSIG protocol;

Figure 2 shows a hierarchical diagram of the QSIG protocol;

FIG. 3 shows a schematic diagram of basic call message interaction using the QSIG protocol;

Figure 4 shows the QSIG protocol message format;

Fig. 5 shows a schematic diagram of distribution of QSIG messages.

Detailed ways

In order to make it easier for those skilled in the art to understand and realize the present invention, the embodiments of the present invention are described in conjunction with the accompanying drawings.

As shown in Figure 4, the message format in the QSIG protocol includes four parts: 1) protocol identifier; 2) call reference; 3) message type; 4) multiple message information units. Therefore, each message format includes a mandatory unit and an optional unit. The mandatory unit is a unit that must be carried in a signaling message, and includes "protocol identifier", "call reference" and "message type". The optional unit may or may not be included in the signaling message, which includes a plurality of message information units. According to the present invention, the processing entity identifier corresponding to the call reference can be set in these mandatory units, for example, the corresponding processing entity identifier is set in the call reference. In this way, when PINX receives the signaling message with the call reference and the processing entity ID, it can directly assign the signaling message to the processing entity corresponding to the processing entity ID for processing according to the processing entity ID, thus saving Operations such as judgment and query are simplified, thereby shortening the signaling interaction time and improving communication quality.

According to the present invention, as shown in Figure 1, because on the signaling path between PINX X and PINX Y, in the signaling message that PINX Y receives to initiate a call from PINX X, the described signaling message is made by calling Generated by the call-out terminal PINX X, the signaling message includes the processing entity identifier. In this way, after the call is set up and before the call is cleared, all messages related to this call sent to the outgoing terminal PINXX via the incoming terminal PINX Y have the processing entity identification of PINX, so that PINX can pass the processing entity identification It is clear that the message is sent to the processing entity corresponding to the processing entity identifier for processing. Similarly, the call-in terminal PINX Y can also have the same treatment as above.

As shown in Figure 5, it is assumed that there are three QSIG call service processing entities (the processing entity identifiers are 01, 02, and 03) at the outgoing QSIG call terminal PINX X, and the outgoing terminal PINX X and the incoming terminal PINX Y pass the underlying QSIG signaling Access (inter-PINX link) connection. The signaling message distribution method of the present invention is described below.

1. When the processing entity 1 of the outgoing terminal PINX X needs to establish a QSIG call with the incoming terminal PINX Y, the outgoing terminal PINX X sets the processing entity carrying this QSIG call in the call reference CR value according to the number of the processing entity For the identification, for example, the lowest byte of the CR value is used to save the call processing entity identification 01, assuming that the CR is set to 0x1101. Once the CR value is allocated and confirmed, all calls received from the incoming terminal PINX Y on the signaling path specified by the lower layer of PINX X after the call starts and before it is cleared refer to QSIG with a CR unit value of 0x1101 Protocol messages are distributed to the corresponding QSIG processing entity 01 for processing.

2. When the processing entities 2 and 3 of the outgoing terminal PINX X need to establish a QSIG call with the incoming terminal PINX Y respectively, the outgoing terminal PINX X can set the minimum call reference CR value according to the QSIG processing entity numbers 02 and 03 The bytes are 02 and 03, assuming that the CR value is set to 0x2202 and 0x3303 respectively. Once the CR value is assigned and confirmed, all calls received from the incoming terminal PINX Y on the signaling channel designated by the lower layer after the call is established and before it is cleared refer to QSIG with CR value fields of 0x2202 and 0x3303 The protocol messages are respectively distributed to corresponding QSIG processing entities 2 and 3 for processing.

In addition, for specific services, for example, the call reference CR value of some QSIG service messages must be 0. If such QSIG messages are processed, the message distribution can be carried out according to the information carried by the specific service, or the message strategy can be implemented by fixed distribution and other strategies Distribution will not have any impact on existing business implementation.

The present invention also discloses a signaling distribution device. The signaling distribution device includes: a receiving unit for receiving signaling messages; a distribution unit connected with the receiving unit for The message obtains the processing entity identifier, and distributes the signaling message to the processing entity corresponding to the processing entity identifier; the processing entity is used for processing the signaling message.

The present invention also provides a switch, including: a signaling message distributing device for distributing signaling messages; a signaling message generating device for generating signaling messages, and the signaling messages include information corresponding to the call instance Handle entity id. The signaling distribution device includes: a receiving unit, used to receive signaling messages; a distribution unit, connected to the receiving unit, used to obtain the processing entity identifier according to the signaling message received by the receiving unit, and distribute the signaling message A processing entity corresponding to the processing entity identifier is given; the processing entity is used for processing signaling messages.

In addition, only the QSIG protocol above describes the present invention, and the present invention is also applicable to switching devices in a general sense.

According to the present invention, by making the call reference CR unit in the QSIG message packet carry the processing entity identifier, the switch can directly distribute the returned signaling message to the QSIG message, thereby greatly shortening the query matching time and improving the processing performance of the system , which further improves the real-time performance of the protocol.

Although the present invention has been described by the embodiments, those of ordinary skill in the art know that, without departing from the spirit and essence of the present invention, the present invention can have many modifications and variations, and the scope of the present invention is defined by the appended rights Requirements to limit.

Claims (10)

1, a kind of method of signaling message distribution is characterized in that, comprising:

Switch receives signaling message, and described signaling message comprises the processing entities sign;

Switch is issued described signaling message and the corresponding processing entities of processing entities sign.

2, the method for signaling message distribution according to claim 1 is characterized in that described signaling message comprises essential unit and selectable unit.

3, the method for signaling message distribution according to claim 2 is characterized in that, described processing entities sign is arranged in the essential unit of signaling message.

4, the method for signaling message distribution according to claim 2 is characterized in that described essential unit comprises: signaling identifier element, call reference unit, type of message unit.

5, the method for signaling message distribution according to claim 4 is characterized in that, described processing entities sign is arranged in the call reference unit.

6, the method for signaling message distribution according to claim 1 is characterized in that, also comprises:

Switch generates the signaling message that has the processing entities sign, and described call treatment entity identification is corresponding with call instance, then the signaling message that is generated is issued next and is jumped switch.

7, the method for signaling message distribution according to claim 6 is characterized in that, the signaling message that switch receives is issued next signaling message of jumping switch with switch and is associated.

8, the method for signaling message distribution according to claim 1 is characterized in that, also comprises: switch obtains the processing entities sign from signaling message;

Switch is issued signaling message and the corresponding processing entities of processing entities.

9, a kind of device of signaling message distribution is characterized in that, comprising:

Receiving element is used to receive signaling message, and described signaling message comprises the processing entities sign;

Dispatching Unit is connected with receiving element, and the signaling message that is used for receiving according to receiving element obtains the processing entities sign, and this signaling message is distributed to processing entities identifies corresponding processing entities.

10, a kind of switch is characterized in that, comprising:

The signaling message dispensing device is used to distribute signaling message, and described signaling distribution transmitting apparatus comprises:

Receiving element is used to receive signaling message;

Dispatching Unit is connected with receiving element, and the signaling message that is used for receiving according to receiving element obtains the processing entities sign, and this signaling message is distributed to processing entities identifies corresponding processing entities;

The signaling message generation device is used to produce signaling message, and described signaling message comprises and the corresponding processing entities sign of call instance.

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