WO2010034177A1

WO2010034177A1 - Method, equipment and network for delivering sua message based on gt addressing

Info

Publication number: WO2010034177A1
Application number: PCT/CN2009/000545
Authority: WO
Inventors: 潘能毅; 刘宇洪; 邵景莅; 雷卓辉
Original assignee: 华为技术有限公司
Priority date: 2008-09-28
Filing date: 2009-05-19
Publication date: 2010-04-01
Also published as: CN101686231B; CN101686231A

Abstract

A method for delivering a SUA protocol message based on the GT addressing and the SUA protocol function entity thereof are disclosed in the embodiments of the present invention. The method includes: receiving a SUA signaling service message based on the GT addressing; determining the GT code type attribute of the SUA signaling service message; carrying out the corresponding translation and conversion process according to the GT address parameters associated with the determined GT type attribute in the SUA signaling service message, and completing the protocol process, wherein the GT code type attribute is used to denote that the data structure of the GT code of the SUA signaling service message is defined by the ITU-T standards organization or by the ANSI standards organization. It can be implemented to identify the format of the GT code in the received SUA protocol message through the schemes of the embodiments in the present invention; accordingly, the interoperability between protocols with different formats is enhanced.

Description

Method, device and network for transmitting SUA message based on GT addressing. The application is filed on September 28, 2008, and the application number is 200810216624. The invention is entitled "Transfer method and device for SUA message based on GT addressing" The priority of the Chinese Patent Application, the entire contents of which is incorporated herein by reference. Technical field

The present invention relates to the field of communications technologies, and in particular, to a GT (Global Title Global Code) addressing SUA (Signaling Connection Control Part User Adaptation Layer) protocol message transmission method and SUA Protocol function entity.

Background technique

1 is a schematic diagram of a network protocol layer structure. As shown in FIG. 1, in a network layered structure, a SCCP (Signaling Connection Control Part) protocol belongs to a network and a transport layer function layer, and the SCCP protocol can be based on The primary and called addresses provided by the user cooperate with the function of the No.7 signaling network MTP (Message Transfer Part) to complete the SCCP network routing addressing function between the signaling nodes. The SCCP protocol can resolve the next hop destination address according to the primary and called addresses in the SCCP message. The SCCP primary route addressing information is the destination signaling point SPC (Signal Point Code) in the primary and secondary called information. , Subsystem Number (SSN) and/or GT; g卩GT is one of the network routing addressing modes of SCCP. Among them, for the global code GT in the SCCP protocol master/called address structure in the ITU-T standard of the International Telecommunication Union Standardization Group, the GT is variable length coding according to the protocol. Currently, the ITU-T standard organization defines four cases. , ie, the ITU-T global code GT format when the "GT indication" is 0001, 0010, 0011, 0100, respectively; and, for the ANSI (American National Standards Institute) standard, the SCCP protocol master/called address structure In the global code GT, the ANSI standard organization defines two GT formats, namely the ANSI global code GT format when the "GT indication" is 0001 and 0010, respectively. The IETF proposes an adaptation protocol-SUA protocol for the SCCP layer to provide stronger address mapping and routing functions, as well as network management functions. The SUA protocol provides functions similar to the SCCP protocol for upper-layer users. The difference is that the SUA lower layer transmission is based on the SCTP/IP (Stream Control Transfer Protocol) protocol, and the SUA protocol extends the SCCP route addressing information. In addition to including SPC, SSN, and GT, you can also use IP address and Hostname for addressing. That is, the SUA includes: IP + SSN, IP + GT, IP + GT + SSN and / or hostname routing addressing mode; that is, there is also a GT SUA route addressing mode; and in the current SUA protocol, the global code GT address format is in accordance with the ITU The specified four types of GT formats are passed.

In the process of implementing the present invention, the inventors found that the prior art: the SUA protocol can be used to simultaneously transmit the content of the SCCP protocol of the ITU-T GT and the content of the SCCP protocol of the ANSI GT. When the two types of GTs involve SUA interworking, For example, for the signaling gateway SG (Signaling Gateway) that implements the interworking between the narrowband-based SCCP and the broadband IP-based SUA protocol, when the SG receives the SUA protocol message, it cannot correctly identify the received message. The category of the GT code in the SUA protocol message, so that the subsequent protocol processing cannot be performed correctly; or, when the SUA entity in the SUA protocol network based on the broadband IP receives the SUA protocol message, it is always considered to be the ITU-T category. The GT code cannot correctly identify the class of the GT code in the received SUA protocol message, so that subsequent protocol processing cannot be performed correctly.

Summary of the invention

The embodiment of the invention provides a method for transmitting a SUA protocol message based on GT addressing and a SUA protocol function entity and a network, so as to correctly identify the category of the GT code in the received SUA protocol message, thereby enhancing different protocols. Interoperability.

The embodiment of the present invention provides the following solution: A method for transmitting a SUA message based on global code GT addressing, including:

Receiving a SUA signaling service message, where the SUA signaling service message includes GT address information; determining, according to the SUA signaling service message, a GT category attribute of the SUA signaling service message; After determining the GT category attribute of the SUA signaling service message, performing corresponding translation and conversion processing according to the GT address parameter in the GT address information associated with the determined GT category attribute in the SUA signaling service message, completing the protocol deal with.

And, a SUA protocol functional entity, including:

The SUA messaging module is configured to receive a SUA signaling service message, where the SUA signaling service message includes GT address information;

a GT class identification module, configured to determine a GT category attribute of the SUA signaling service message according to the SUA signaling service message received by the SUA messaging module;

a GT translation addressing module, configured to: after the GT category identification module determines the GT category attribute of the SUA signaling service message, according to the GT address information associated with the determined GT category attribute in the SUA signaling service message The GT address parameters are translated and converted accordingly to complete the protocol processing.

And an IP-based SUA network, comprising: at least two SUA signaling nodes, wherein the SUA signaling node is configured to receive a SUA signaling service message, and determine the SUA letter according to the SUA signaling service message And GT class attribute of the service message; and performing translation processing according to the GT address parameter in the GT address information associated with the determined GT category attribute in the SUA signaling service message, and completing the protocol processing.

And, a network, including an SCCP node located on the No. 7 signaling SCCP network side, further comprising:

The SUA signaling node is located on the IP-based SUA network side and is configured to send a SUA signaling service message.

a signaling gateway, located between the No. 7 signaling SCCP network and the IP-based SUA network, configured to receive the SUA signaling service message, and determine a GT of the SUA signaling service message according to the SUA signaling service message And performing a translation processing according to the GT address parameter in the GT address information associated with the determined GT category attribute in the SUA signaling service message, and completing the protocol processing. In the embodiment of the present invention, after receiving the GT-addressed SUA signaling service message, the category attribute of the GT code of the SUA signaling service message can be identified, and after correctly identifying the category attribute of the GT code, The GT address parameter associated with the determined GT category attribute (ANSI GT or ITU-T GT) in the SUA message is subjected to corresponding translation and conversion processing; the prior art cannot correctly identify the received SUA. The category of the GT code in the protocol message, so that the problem of subsequent protocol processing cannot be correctly performed.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a schematic diagram of a conventional network protocol layer structure;

2 is a schematic structural diagram of an ITU-T SCCP master/called address according to an embodiment of the present invention; FIG. 3 is a schematic structural diagram of an ITU-T GT format according to an embodiment of the present invention;

4 is a schematic structural diagram of an ANSI SCCP master/called address according to an embodiment of the present invention; FIG. 5 is a schematic structural diagram of an ANSI GT format according to an embodiment of the present invention;

6 is a schematic flowchart of a method for transmitting a SUA protocol message based on GT addressing according to Embodiment 1 of the present invention;

FIG. 7 is a schematic diagram of networking for transmitting a GT-addressed SUA protocol message according to Embodiment 1 of the present invention;

8 is a schematic flowchart of a method for transmitting a SUA protocol message based on GT addressing according to Embodiment 2 of the present invention;

FIG. 9 is a schematic diagram of a data structure of a SUA protocol message according to an embodiment of the present disclosure;

10 is a schematic diagram of a GT data structure in a SUA protocol message;

FIG. 11 is a schematic diagram of another networking for transmitting a GT-addressed SUA protocol message according to an embodiment of the present invention; 12 is a schematic flowchart of a method for transmitting a SUA protocol message based on GT addressing according to Embodiment 3 of the present invention;

FIG. 13 is a schematic diagram of a SUA AS/ASP activation negotiation interaction process according to an embodiment of the present invention; FIG. 14 is a data structure diagram of an ASP ACTIVE message;

15 is a schematic flowchart of a method for transmitting a SUA protocol message based on GT addressing according to Embodiment 4 of the present invention;

16 is a schematic flowchart of a method for transmitting a SUA protocol message based on GT addressing according to Embodiment 5 of the present invention;

17 is a schematic diagram of carrying GT category attribute information;

FIG. 18 is a schematic structural diagram of a SUA protocol function entity according to an embodiment of the present invention;

FIG. 19 is a schematic structural diagram of a signaling gateway SG according to an embodiment of the present disclosure;

FIG. 20 is a schematic structural diagram of a SUA signaling node according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In the embodiment of the present invention, a method and a device for transmitting a SUA message based on GT addressing are proposed, so that messages of SCCP ITU-T GT and SCCP ANSI GT can be used in the SUA protocol, and interworking between different format protocols is enhanced. Sex.

Referring to Figure 2, the SCCP master/called address structure of the ITU-T standard, it should be understood that: SCCP is based on the primary and called addresses in the SCCP message, and resolves to find the next hop destination address, where the SCCP primary route is selected. The key information of the road is: destination signaling point DPC (Destination Point Code), subsystem number SSN and/or global code GT in the main and called information.

As shown in Figure 2, in the SCCP master/called address structure, the signaling point code DPC: No.7 signaling network The address identifier (similar to an IP address) of a meta-node, usually a 14-bit or 24-bit length code, identifies the address of a network element device within a particular No. 7 network;

Subsystem No. SSN: The logical number of the upper service subsystem of the SCCP protocol service. SCCP can provide services for multiple upper-layer users at the same time, such as wireless MAP (Mobile Application Part), BSSAP (Base Station Subsystem Application Part). , base station subsystem application part), RANAP (RAN Application Part, RAN application part), etc., may also be intelligent network INAP (Intelligent Network Application Protocol), CAP (CAMEL Application Part, CAMEL application part), etc. In order to distinguish these services, the SSN subsystem number identifier is introduced;

Global code GT: Another address encoding format. Because the DPC encoding range of No.7 is small, DPC may not be unique in No.7 networks in different countries, so a larger GT global code mode is introduced. , this can guarantee the uniqueness of the GT code in the network;

In practical applications, GT is variable length coding according to the protocol. Currently, the ITU-T standard organization defines four cases. Please refer to Figure 3, which is a schematic diagram of the ITU-T global code GT data structure, and introduces the "GT indication" respectively. The GT format for 0001, 0010, 0011, 0100 is indicated:

See Figure 4 for the ANSI standard SCCP master/called address structure. In practical applications, GT is variable length code according to the protocol. Currently, the ANSI standard organization defines two GT formats. See Figure 5 for ANSI. The global code GT format is a schematic diagram of the GT format when the "GT indication" is 0001 and 0010 respectively.

FIG. 6 is a schematic flowchart of a method for transmitting a GT-addressed SUA message according to Embodiment 1 of the present invention. The method is applied to a SUA protocol function entity. As shown in FIG. 6, the method includes: Step 101: Receive a SUA letter For the service message, the SUA signaling service message includes GT address information, that is, the SUA signaling service message is a GT-addressed SUA signaling service message;

The GT address information here includes at least GTI (Global Title Indicator) and GT content information; as shown in FIG. 10, the entire GT data structure is GT ground. Address information, and Global Title Digits is a GT address parameter;

Step 102: Determine, according to the SUA signaling service message, a GT category attribute of the GT-addressed SUA signaling service message, where the GT category attribute is used to indicate that the data structure of the GT code of the SUA signaling service message is Defined by the ITU-T standard organization of the International Telecommunication Union Telecommunication Standardization Group, or defined by the ANSI Standards Organization;

It should be noted that, in the embodiment of the present invention, the GT code types are classified into two types, that is, the GT code (data structure) is defined by the ITU-T standard organization, or is defined by the ANSI standard organization, and is simply referred to as ITU-T, ANSI;

In each category, there are several GT formats, for example: Under the ANSI category, there are two GT formats, which are represented by "GT indication" 0001 and 0010 respectively; under the ITU-T category, there are four GT formats, respectively. The GT indication "is represented by 0001, 0010, 0011, 0100;

Step 103: After determining a GT class attribute of the GT-addressed SUA signaling service message (ANSI or ITU-T), according to the determined GT class attribute (ANSI or ITU) in the SUA signaling service message The GT address parameter in the GT address information is subjected to corresponding translation and conversion processing to complete the protocol processing;

When determining which GT format the GT code of the SUA signaling service message is, perform corresponding translation and conversion work according to the determined GT format, as shown in FIG. 3 and FIG. 5, for example: determining that the GTI in ANSI is 0001. The GT format makes it clear that the translation type, coding involved and other information can be translated and converted accordingly.

It can be seen that, in the embodiment of the present invention, after receiving the GT-addressed SUA signaling service message, the category attribute of the GT code of the SUA signaling service message can be identified, and after correctly identifying the category attribute of the GT code, Corresponding translation and conversion processing can be performed according to the GT address parameter associated with the determined GT category attribute (ANSI or ITU) in the SUA signaling service message; solving the GT of the prior art when receiving or transmitting ANSI The problem of identification and subsequent protocol processing will not be possible when the code is coded.

Referring to FIG. 7, a method for transmitting a SUA message based on GT addressing according to an embodiment of the present invention is provided. A schematic diagram of an application scenario; as shown in FIG. 7, where the SG is located between the original No. 7 signaling SCCP network and the IP-based SUA network, and the No. 7 signaling SCCP network side includes the SCCP node A and the SCCP node. B, the GT code of SCCP node A is ITU-T GT= 1 1 1 1 , the GT code of SCCP node B is ANSI GT=2222; the IP-based SUA network side includes SUA node X and SUA node Y, SUA node X The GT code is ANSI GT=3333, and the GT code of SUA node Y is ITU-T GT=4444 _;

In the networking application shown in FIG. 7, when the SCCP and the SUA perform the GT-based message passing interworking in the SG, the remote node is configured in advance on the SG according to the GT class attribute to which the connected SUA node belongs. The GT class attribute (other entity signaling nodes with SUA protocol function in the network) is ITU-T or ANSI. In this way, when the message of the SCCP GT address is intercommunicated between the SUA and the SCCP network, it can be determined according to the GT category attribute of the pre-configured message source point, whether the GT code is defined by the ITU-T or the ANSI standard organization, and then the SG can internally according to the corresponding The GT performs translation and conversion work, thereby implementing the interworking function of the SUA protocol to the ITU-T format GT and the ANSI format GT.

FIG. 8 is a schematic flowchart of a method for transmitting a GT-based SUA message according to Embodiment 2 of the present invention. The method is applied to the signaling gateway SG shown in FIG. 7. As shown in FIG. 8, the method includes:

Step 201: Configure a GT category attribute of the SUA signaling node that communicates with the current SG, that is, configure association information between the SUA signaling node connected to the current SG and the GT category attribute.

Can be: In the current SG, according to the GT category to which the connected SUA node belongs,

The GT class attribute of the other physical signaling node (SUA signaling node) with SUA protocol function in the network on the SG is ITU-T or ANSI;

Step 202: Receive a SUA signaling service message, and determine, according to the origin address information (calling address) in the SUA signaling service message, a source signaling point of the SUA signaling service message, where the SUA signaling service message carries GT address information, that is, the SUA signaling service message is a GT-addressed SUA signaling service message; Step 203: Determine, according to the association information between the configured SUA signaling node and the GT category attribute, a GT category attribute corresponding to the source signaling node, where the GT category attribute includes: ITU-T GT or ANSI GT;

Step 204: Perform corresponding translation and conversion processing according to the GT address parameter associated with the GT category attribute determined in the SUA signaling service message, and complete subsequent protocol processing.

As shown in Figure 9, the data structure of the master/called address defined in the SUA protocol, where the Address Parameter contains a combination of several address forms such as GT, SPC, SSN, IP, and Hostname. The address parameter of the master/called address in the GT-addressed SUA message according to the embodiment of the present invention includes the data structure of the GT as shown in FIG. 10, and it should be understood that: GT as shown in FIG. In the data structure, the content of the GT Data (Global Title Digits) field is used for translation and conversion, for example: when the field value of the GT indication (GTI) field indicates 0001 or 0010, and the SUA letter is determined by the above embodiment 2. Let the GT category attribute of the service message be ANSI, and the content of the Global Title Digits field here is as shown in FIG. 5; correspondingly, in step 204, correspondingly according to the translation type, the coding plan, and the like as shown in FIG. Translation and conversion processing, as it is prior art, will not be described again.

It can be seen that, in the method for transmitting a GT-addressed SUA message according to the second embodiment of the present invention, the SG receives the GT code class attribute to which each SUA node belongs, and the SG receives the GT-addressed SUA signaling service. When the message is received, the GT code category attribute of the received SUA signaling service message can be identified, so that the corresponding translation and conversion processing can be performed according to the GT address parameter associated with the GT code category attribute, which solves the prior art, when the SG After receiving the SUA protocol message, the type of the GT code in the received SUA protocol message cannot be correctly identified, and the subsequent protocol processing cannot be correctly performed.

FIG. 1 is a schematic diagram of another application scenario of a method for transmitting a GT-addressed SUA message according to an embodiment of the present invention; a simplified description, the IP-based SUA network side includes a SUA node X and a SUA node Y, a SUA node The GT code of X is ANSI GT=3333, and the GT code of SUA node Y is ITU-T GT=4444 _; In the application of the IP-based SUA network shown in FIG. 11, when the GT-addressed SUA message interworking is performed between the SUA nodes, the GT class attribute of the remote SUA node that is configured to communicate with each SUA node is ITU- T is still ANSI. In this way, when the SUA GT address message is delivered at the SUA node, it can be determined according to the GT category attribute of the pre-configured message source point whether the GT code is defined by the ITU-T standard organization or the ANSI standard organization, and then the SUA node can be based on The GT code address parameters associated with the identified GT categories are translated and converted accordingly, thereby implementing the interworking function of the SUA protocol to ITU-T GT and ANSI GT.

Referring to FIG. 12, it is a schematic flowchart of a method for transmitting a GT-based SUA message according to Embodiment 3 of the present invention. The method is applied to the SUA node shown in FIG. 11. As shown in FIG. 12, the method includes:

Step 301: Configure a GT category attribute of the SUA signaling node that communicates with the current SUA signaling node, that is, configure association information between the SUA signaling node and the GT category attribute connected to the current SUA signaling node;

The GT class of the other SUA signaling nodes in the network is pre-configured to be ITU-T or ANSI according to the GT class to which each SUA signaling node belongs;

It may also be: In the IP-based SUA network, for each SUA signaling node, pre-configure association information between all SUA signaling nodes and corresponding GT category attributes, for example: pre-configured on each SUA signaling node Have a global table;

Step 302: Receive a SUA signaling service message, and determine, according to origin address information (calling address) in the SUA signaling service message, a source signaling node of the SUA signaling service message, where the SUA signaling service message carries GT address information, that is, the SUA signaling service message is a GT-addressed SUA message;

Step 303: Determine, according to the association information between the configured SUA signaling node and the GT category, a GT category attribute corresponding to the source signaling node, where the GT category attribute includes: ITU-T GT or ANSI GT; Step 304: Perform corresponding translation and conversion processing according to the GT address parameter associated with the GT category determined in the SUA signaling service message, and complete subsequent protocol processing.

It can be seen that, as described in the foregoing Embodiments 2 and 3, not only the signaling gateway SG but also the SUA signaling node are both SUA protocol functional entities; and the difference between the signaling gateway SG and the SUA signaling node is in the network. The location or role is different. The method for transmitting the GT-based SUA message provided by the second and third embodiments of the present invention is applied to different networking environments, and the SUA protocol functional entities are divided into two categories to be respectively described. One is SG and the other is SUA signaling node.

Referring to the networking diagram shown in Figure 7, the SG is connected to the AS (Application Server) of one or more SUAs according to the provisions of the SUA protocol. (You can understand the SUA node X and Y in Figure 7 as the AS node of the SUA.) To carry the corresponding SUA signaling protocol message, where an AS consists of one or more ASPs (Application Server Process). Each AS bears a different SUA signaling service message. According to the provisions of the SUA protocol, before the AS of the SUA needs to transmit signaling messages with the SG, it needs to negotiate an interaction process through an AS (ASP) through the underlying SCTP connection.

FIG. 13 is a schematic diagram of a SUA AS/ASP activation negotiation interaction process according to an embodiment of the present invention, where the GT category attribute used by the node is configured on the SUA signaling node, including:

Step 401: Configure the GT category attribute to which the node belongs on the AS node of the SUA; that is, whether the GT of the node is configured on the AS node of the SUA is defined by the ITU-T standard organization or an ANSI standard organization;

Step 402: The AS node of the SUA sends an ASP UP message to the SG in the network. Step 403: The SG returns an ASP UP ACK response message corresponding to the received ASP UP message. Step 404: The AS node of the SUA receives After the ASP UP ACK response message, the ASP ACTIVE message is returned to the SG, where the ASP ACTIVE message carries the GT category attribute information of the AS node of the SUA;

As shown in FIG. 14, it is a data structure diagram of an ASP ACTIVE message; in one implementation, The GT class attribute information of the AS node carrying the SUA in the "Info String" field of the ASP ACTIVE; various forms of extended formats may be used, such as the first byte of the "Info String" indicating the GT class TAG, the second Bytes represent GT category attributes; or directly use the first byte to represent GT category attributes. There are a variety of extension methods, which are not listed here.

Step 405: After receiving the ASP ACTIVE message, the SG obtains the GT category attribute information in the ASP ACTIVE message, and saves the association information between the AS node of the source SUA and the corresponding GT category attribute, that is, records the AS of the source SUA. GT category information (GT category attribute) corresponding to the node, so that the SG can identify the category attribute of the received GT-addressed SUA signaling service message according to the saved association information, thereby performing subsequent protocol processing;

Specifically, after the SG receives the ASP ACTIVE message from the application service process, the SG

The GT category attribute information of the AS node of the source SUA is obtained in the "Info String" field;

Step 406: The SG returns an ASP ACTIVE ACK response message corresponding to the ASP ACTIVE message to the AS node of the corresponding SUA.

After the preceding steps, the SG and the AS can start to carry the SUA signaling service message normally.

FIG. 15 is a schematic flowchart of a method for transmitting a GT-based SUA message according to Embodiment 4 of the present invention. The method is applied to the signaling gateway SG in the networking environment shown in FIG. 7; Show, including:

Step 501: Configure the GT category attribute to which the node belongs on the AS node of the SUA; that is, whether the GT of the node is configured on the AS node of the SUA is defined by the ITU-T standard organization or an ANSI standard organization;

Step 502: Receive an ASP ACTIVE message sent by the SUA ASP node, where the ASP ACTIVE message carries the GT category attribute information of the AS node of the SUA.

Step 503: After receiving the ASP ACTIVE message, the SG obtains the GT category attribute information from the ASP ACTIVE message.

Step 504: The association between the AS node of the source SUA and the corresponding GT category attribute is saved. Information, that is, the GT category attribute corresponding to the AS node of the source SUA is recorded;

Step 505: Receive a SUA signaling service message, and determine a source signaling node of the SUA signaling service message, where the SUA signaling service message is a GT-addressed SUA signaling service message;

Step 506: Determine, according to the association information between the saved (recorded) SUA signaling node and the GT category, a GT category attribute corresponding to the source signaling node, where the GT category attribute includes: ITU-T GT or ANSI GT ;

Step 507: Perform corresponding translation and conversion processing according to the GT address parameter associated with the GT category determined in the SUA signaling service message, and complete subsequent protocol processing.

It can be seen that, in the embodiment of the present invention, the GT category attribute used by the SUA node is set in advance on the SUA node in the IP-based SUA network, and the SG dynamic acquisition is obtained based on the activation negotiation interaction process between the SUA node and the SG. The GT class attribute corresponding to the SUA node in the IP SUA network, so that in the process of transmitting the subsequent signaling service message, the SG can identify the GT class attribute of the SUA signaling service message, thereby correctly performing address translation and conversion, and completing Subsequent protocol processing.

The fifth embodiment of the present invention provides a more flexible application solution by carrying GT category (attribute) information in the SUA signaling service message. FIG. 16 is a schematic flowchart of a method for transmitting a GT-addressed SUA message according to Embodiment 5 of the present invention. The method can be applied to the signaling gateway SG in the networking environment shown in FIG. 7, and can also be applied. The SUA signaling node in the networking environment shown in Figure 11; as shown in Figure 16, includes:

Step 601: Receive a SUA signaling service message, where the SUA signaling service message carries GT address information, where the SUA signaling service message indicates a SUA signaling service message based on GT addressing;

In order for the SUA signaling service message to carry the GT category attribute (GT category information), the following message extension method can be used:

1) As shown in Figure 10, TAG=0x8001, the tag in the standard indicates the latter The capacity is the GT address information. As mentioned above, the existing GT format of the SUA occupies 4 BITs, and the actual data represented is 0-4 (ie, 0000, 0001, 0010, 0011, 0100), that is, the original GTI. The indication field indicates the four GT formats of the ITU-T, and the GTI format field of the existing SUA message has 251 reserved values. The embodiment of the present invention is a field value representation of the extended GTI field, and some of the bits can be enabled. The bits map the GT types, for example: GT types 1-4 represent 1_4 GTs of ITU-T, and 5-6 represent 1 _2 GTs of ANSI.

2) Add a special GT category attribute tag parameter (TAG) to the existing SUA protocol message to indicate whether it is an ANSI GT or an ITU-T GT TAG. As shown in Figure 17,

TAG is the new TAG value, indicating that the specific content (specific GT format) is used to indicate the GT type. In other words, the specific value range is the value after it, for example: 0 means ITU-T

GT, 1 means ANSI GT (in other words, the TAG indicates that this part is the information indicating the GT, and the specific GT format is the specific GT category attribute information);

Specifically, which GT format under the type is represented by the domain value indicated by the GTI in FIG. 10, for example: whether the GT GT or the ITU-T GT is specified by the specific GT format, and then which one is determined according to the GTI. GT format, for example: ANSI "0001," format GT.

3) Different from the first implementation: The TAG in Figure 10 is the new TAG value, and the extended GTI field value indicates, for example: GT type 1 - 4 indicates ITU-T 1-4 GT, 5 - 6 indicates ANSI 1-2 GT.

Step 602: Parse the SUA signaling service message, and determine a GT code category attribute of the SUA signaling service message according to the parsing result of the GT category attribute information, where the GT code category attribute includes: ITU-T GT or ANSI GT;

Specifically, the GTI field value is parsed, for example: when the GTI field value is 1, the GT code of the SUA signaling service message is determined to be the first GT of the ITU-T class;

When the value of the GTI field is 2, it is determined that the GT code of the SUA signaling service message is the second GT of the ITU-T class;

When the GTI field value is 3, it is determined that the GT code of the SUA signaling service message is the ITU-T class. 3 kinds of GT;

When the GTI field value is 4, it is determined that the GT code of the SUA signaling service message is the fourth GT of the ITU-T class _;

When the value of the GTI field is 5, it is determined that the GT code of the SUA signaling service message is the first GT of the ANSI class;

When the GTI field value is 6, the GT code of the SUA signaling service message is determined to be the second GT of the ANSI class;

Specifically, the GT value field used to represent the GT category is parsed. When the specific GT format field value is 0, the GT code of the SUA signaling service message is determined to be ITU-T GT; when the specific GT format field value is If 1, the GT code of the SUA signaling service message is determined to be ANSI GT.

Step 603: Perform corresponding translation and conversion processing according to the GT address parameter associated with the GT category determined in the SUA signaling service message, and complete subsequent protocol processing.

It should be understood that: after the SUA protocol function entity that receives the SUA signaling service message identifies the GT code category of the SUA signaling service message, the GT address parameter in the SUA signaling service message can be correctly performed accordingly. Translation and conversion processing; even if it is an ITU-class GT code, it is specifically divided into four GT code formats. According to the "Global Title Digits" in different GT formats under the same class, the translation and conversion are different. ;

It can be seen that, in the embodiment of the present invention, the entity that receives the SUA signaling service message parses and determines the GT code type attribute from the SUA signaling service message by carrying the GT category (attribute) information in the SUA signaling service message. After the GT category attribute of the SUA signaling service message is identified, the address translation and conversion are performed correctly, and subsequent protocol processing is completed; and a more flexible application scheme is provided.

Referring to FIG. 18, it is a schematic diagram of an internal module of a SUA protocol function entity according to Embodiment 1 of the present invention; the SUA protocol function entity is configured to determine the GT-addressed SUA signaling service message according to the received SUA signaling service message. GT category attribute; according to the SUA signaling service The GT address parameter associated with the determined GT category attribute (ANSI or ITU) in the message is subjected to corresponding translation and conversion processing to complete the protocol processing; wherein the GT category attribute is used to represent the GT of the SUA signaling service message. The data structure of the code is defined by the ITU-T standard organization and is also defined by the ANSI standard organization; as shown in Figure 18, the SUA protocol functional entity includes:

The SUA messaging module 701 is configured to receive or send a SUA signaling service message, where the SUA signaling service message includes GT address information, that is, the received SUA signaling service message is a GT-addressed SUA signaling service message. ;

The GT category identification module 702 is configured to determine, according to the SUA signaling service message received by the SUA messaging module 701, a GT code category attribute of the SUA signaling service message; in other words, identify the SUA signaling service message. GT code category;

The GT translation addressing module 703 is configured to: after the GT category identification module 702 determines the GT code category attribute of the SUA signaling service message, the GT address associated with the GT category determined according to the SUA signaling service message The GT address parameters in the information are translated and converted accordingly, and subsequent protocol processing is completed. It should be understood that, after the SUA protocol function entity provided by the embodiment of the present invention identifies the GT code category in the received SUA signaling service message, it can perform subsequent processing according to the original translation addressing function of the protocol.

In an implementation, the GT category identification module 702 is a first GT category identification module, configured to determine a source signaling point of the SUA signaling service message according to origin address information (calling address) in the SUA signaling service message. And determining, according to association information between the SUA signaling node and the GT category, a GT category attribute corresponding to the source signaling node, the GT category attribute including: ITU-T GT or ANSI GT.

In another implementation, the GT category identification module 702 is a second GT category identification module, configured to parse the GT address information in the SUA signaling service message, and determine the GT code category of the SUA signaling service message according to the parsing result. Attributes.

It should be understood that: in the application scenario shown in FIG. 7, the SUA protocol functional entity includes

SG, SUA signaling node on the IP side. It can be seen that, in the SUA protocol function entity provided by the embodiment of the present invention, after receiving the GT-addressed SUA signaling service message, the category attribute of the GT code of the SUA signaling service message can be identified, and the GT code is correctly identified. After the category attribute, the corresponding translation and conversion processing can be performed according to the GT address parameter associated with the determined GT category attribute (ANSI GT or ITU-T GT) in the SUA signaling service message; In the technology, the problem of identification and subsequent protocol processing cannot be performed when the ANSI GT code is received or transmitted.

FIG. 19 is a schematic diagram of an internal module of a signaling gateway according to an embodiment of the present invention; as shown in FIG. 19, the signaling gateway includes:

The storage module 804 is configured to save association information between other signaling nodes (SUA signaling nodes) having the SUA protocol function and the GT category attribute in the network;

In an implementation, the association information saved in the storage module 804 may be configured on the current SG according to the GT category to which each SUA node belongs, and previously configured and saved other physical signaling nodes in the network that have the SUA protocol function. (SUA signaling node) GT category is ITU-T or ANSI;

In another implementation, the association information saved in the storage module 804 may be the current SG and

After the ASA receives the ASP ACTIVE message, the SG obtains the GT category attribute information in the ASP ACTIVE message, and saves the association information between the AS node of the source SUA and the corresponding GT category attribute. That is, the GT category information (GT category attribute) corresponding to the AS node of the source SUA is recorded.

The SUA messaging module 801 is configured to receive or send a SUA signaling service message, where the SUA signaling service message includes GT address information, that is, the received SUA signaling service message is a GT-addressed SUA signaling service message. ;

a GT class identification module 802, configured to determine, according to origin address information (calling address) in the SUA signaling service message received by the SUA messaging module 701, a source signaling point of the SUA signaling service message, and according to the Determining information between the SUA signaling node and the GT category attribute in the storage module 804, and determining a GT category attribute corresponding to the source signaling node, the GT class Other attributes include: ITU-T GT or ANSI GT;

The GT translation addressing module 803 is configured to: after the GT category identification module 702 determines the GT code category attribute of the SUA signaling service message, the GT address associated with the GT category determined according to the SUA signaling service message The parameters are translated and converted accordingly, and subsequent protocol processing is completed. It should be understood that, after the SG of the embodiment of the present invention identifies the GT code category in the received SUA signaling service message, the SG code can perform subsequent processing according to the original translation addressing function of the protocol.

As shown in FIG. 1, the SG receives the SCCP message of the ANSI or the ITU-T GT and converts it into the SUA protocol message and sends it to the peer SUA entity. The signaling gateway of the embodiment of the present invention further includes: an SCCP protocol processing module, After receiving the GT-addressed SCCP message, determining the GT code category attribute of the SCCP message, and converting the SCCP message into a SUA message, the converted SUA message carries information indicating the GT category attribute.

FIG. 20 is a schematic diagram of an internal module of a SUA signaling node according to an embodiment of the present invention; as shown in FIG. 20, the SUA signaling node includes:

The SUA messaging module 901 is configured to receive a SUA signaling service message, where the SUA signaling service message includes GT address information, that is, the received SUA signaling service message is a GT-based SUA signaling service message;

The GT category identification module 902 is configured to parse the GT address information in the SUA signaling service message, where the GT address information includes GT category attribute information, and determines the SUA signaling service message according to the parsing result of the GT category attribute information. GT code category attribute, the GT category attribute includes: ITU-T GT or ANSI GT;

The GT translation addressing module 903 is configured to: after the GT category identification module 902 determines the GT code category attribute of the SUA signaling service message, the GT address associated with the GT category determined according to the SUA signaling service message The parameters are translated and converted accordingly, and subsequent protocol processing is completed. It should be understood that, after the SUA signaling node in the embodiment of the present invention identifies the GT code category in the received SUA signaling service message, subsequent processing can be performed according to the original translation addressing function of the protocol. The SUA signaling node provided by the embodiment of the present invention further includes: a storage module 904, configured to save the GT category attribute corresponding to the SUA signaling node; and in one implementation, configure and save the GT used by the node on the SUA node. Category attribute.

Correspondingly, the SUA messaging module 901 is further configured to send a SUA signaling service message, where the SUA signaling service message includes GT address information, where the GT address information includes GT category attribute information; where the GT category attribute information is In the process of assembling the SUA signaling service message to be sent, the GT category attribute corresponding to the local node is obtained from the storage module 904, and the GT category attribute is carried in the SUA signaling service message to be sent.

It can be seen that the SUA signaling node in the embodiment of the present invention carries the GT category attribute information in the SUA signaling service message, and the entity that receives the SUA signaling service message parses and determines the GT code type from the SUA signaling service message. The attribute, after identifying the GT category attribute of the SUA signaling service message, thereby correctly performing address translation and conversion, and completing subsequent protocol processing; providing a more flexible application solution.

A person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. In execution, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read only memory (ROM), or a random access memory (RAM).

The above is only a few embodiments of the present invention, and various modifications and changes may be made to the present invention without departing from the spirit and scope of the invention.

Claims

Claim

A method for transmitting a SUA message based on global code GT addressing, characterized in that:

Receiving a SUA signaling service message, where the SUA signaling service message includes GT address information; determining, according to the SUA signaling service message, a GT class attribute of the SUA signaling service message;

After determining the GT category attribute of the SUA signaling service message, performing corresponding translation and conversion processing according to the GT address parameter in the GT address information associated with the determined GT category attribute in the SUA signaling service message, completing the protocol deal with.

2. The method of claim 1, wherein the GT category attribute indicates the

The global code GT of the SUA signaling service message is defined by the ITU-T standardization organization of the International Telecommunication Union Telecommunication Standardization Group or by the American National Standards Institute ANSI Standards Organization.

The method according to claim 1 or 2, wherein the determining, according to the SUA signaling service message, the GT category attribute of the SUA signaling service message comprises:

Determining, according to the origin address information in the SUA signaling service message, a source signaling point of the SUA signaling service message;

And determining, according to the association information between the configured SUA signaling node and the GT category attribute, the GT category attribute corresponding to the source signaling node.

And determining, according to the association information between the obtained SUA signaling node and the GT category attribute, the GT category attribute corresponding to the source signaling node.

The method according to claim 4, wherein the determining the GT class corresponding to the source signaling node according to the association information between the obtained SUA signaling node and the GT class attribute Before the steps of the attribute, further include:

Obtaining the GT category attribute information from the received application service process activation ASP ACTIVE message, and saving the association information between the source SUA node and the corresponding GT category attribute of the application service process activation ASP ACTIVE message.

The method according to claim 1 or 2, wherein the SUA signaling service message further carries GT category attribute information, or the GT address information includes GT category attribute information;

Determining, according to the SUA signaling service message, the GT code category attribute of the SUA signaling service message includes: acquiring GT category attribute information from the SUA signaling service message, and determining according to the parsing result of the category attribute information The GT category attribute of the SUA signaling service message.

7. A SUA protocol functional entity, comprising:

The SUA protocol function entity according to claim 7, wherein the GT class identification module is a first GT class identification module, configured to determine the SUA letter according to origin address information in the SUA signaling service message. The source signaling point of the service message is determined, and the GT category attribute corresponding to the source signaling node is determined according to the association information between the SUA signaling node and the GT category attribute.

The SUA protocol function entity according to claim 7, wherein the GT class identification module is a second GT class identification module, configured to obtain from the SUA signaling service message. The GT category attribute information determines the GT category attribute of the SUA signaling service message according to the analysis result of the GT category attribute information.

The SUA protocol function entity according to claim 7, further comprising: an SCCP protocol processing module, configured to determine a GT category attribute of the SCCP message after receiving the GT-addressed SCCP message, and The SCCP message is converted into a SUA message, and the converted SUA message carries information indicating a GT category attribute.

The SUA protocol function entity according to claim 7 or 9, wherein the SUA messaging module is further configured to send a SUA signaling service message, where the SUA signaling service message includes GT address information, and the GT The address information contains GT category attribute information.

An IP-based SUA network, comprising: at least two SUA signaling nodes, wherein the SUA signaling node is configured to receive a SUA signaling service message, according to the SUA signaling service message, Determining a GT category attribute of the SUA signaling service message; and performing corresponding translation and conversion processing according to the GT address parameter in the GT address information associated with the determined GT category attribute in the SUA signaling service message, completing Protocol processing.

13. A network, comprising an SCCP node located on the No. 7 signaling SCCP network side, further comprising:

a signaling gateway, located between the No. 7 signaling SCCP network and the IP-based SUA network, configured to receive the SUA signaling service message, and determine a GT of the SUA signaling service message according to the SUA signaling service message And performing a translation processing according to the GT address parameter in the GT address information associated with the determined GT category attribute in the SUA signaling service message, and completing the protocol processing.

The network according to claim 13, wherein the signaling gateway SG is specifically configured to determine a source signaling node of the SUA signaling service message according to origin address information in the SUA signaling service message, Determining the relationship according to the association information between the SUA signaling node and the GT category The GT category attribute corresponding to the source signaling node; performing corresponding translation and conversion processing according to the GT address parameter in the GT address information associated with the determined GT category attribute in the SUA signaling service message, and completing the protocol processing.

The network according to claim 13, wherein the SUA signaling node is further configured to send an application service process to activate an ASP ACTIVE message, where the application service process activates an ASP ACTIVE message carrying the SUA signaling node. GT category attribute information;

The signaling gateway SG is further configured to: after receiving the ASP ACTIVE message, the application service process activates the ASP ACTIVE message to obtain the GT category attribute information; and saves the source SUA signaling node and the corresponding GT. Association information between category attributes.