WO2011022980A1

WO2011022980A1 - Method for encoding and decoding message content uniformly and integrated short message center system

Info

Publication number: WO2011022980A1
Application number: PCT/CN2010/072184
Authority: WO
Inventors: 于春青; 叶兵; 孙立波; 钟建
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-08-27
Filing date: 2010-04-26
Publication date: 2011-03-03
Also published as: CN101635892A

Abstract

A method for encoding and decoding message content uniformly is provided by the present invention, the method includes: an integrated short message center receives a calling short message from a calling terminal; the integrated short message center decodes the calling short message according to the network protocol type of the calling terminal and acquires the content of the message; the integrated short message center converts the message content to a encoded message of a first format; the integrated short message center acquires the network type of a target terminal according to the route information and converts the encoded message of the first format to a encoded message of the second format supported by the network protocol type of the target terminal; the integrated short message center transmits the encoded message of the second format to the target terminal. Accordingly, an integrated short message center system is provided by the present invention. With the present invention, within the interior of the short message center, one interface is used for the message contents from different networks, thereby improving the reusability of the service flow and reducing the complexity of the encoding and the decoding.

Description

Method for unified codec of message content and integrated short message center system

The invention relates to a method for encoding and decoding message content of short messages, in particular to a method for unified codec of message content and a comprehensive short message center system. Background technique

With the rapid development of short message services, Global System for Mobile communications (GSM), Code Division Multiple Access (CDMA), Personal Handy-phone System (PHS), and even Session Initiative Protocol ( Session Initiation Protocol, SIP) Short messages have been flown into the homes of ordinary people. Since the signaling interfaces and code stream coding specifications involved in various networks are different, for an operator, multiple short message center sites of GSM, CDMA, PHS, and SIP need to be opened, and correspondingly more human resources are required. Material resources. For the manufacturer of the short message center, a lot of maintenance costs have also been added.

The integrated SMS center is generated in this scenario, and the short message center of multiple networks is merged into a short message center. The advantages are self-evident, but the processing process inside the integrated short message center is much more complicated than the simple SMS center. In particular, whether the short message content is correctly parsed directly affects the user's experience. How to uniformly encode and decode the code streams of different network protocol interfaces has always been a chaotic part of the integrated short message center business logic. At present, the code processing of the integrated short message center is complicated, and the different interfaces are processed according to different interfaces of GSM, CDMA, PHS and SIP, and the service has a redundant process, and there is no real integration into a unified interface processing. Summary of the invention

The object of the present invention is to provide a method for unified encoding and decoding of message content and a comprehensive short message center system, so that the message content of different networks in the short message center is processed by only one interface, which improves. The reuse rate of business processes reduces the complexity of codecs.

In order to achieve the above object, in one aspect, a method for uniformly encoding and decoding message content is provided, including:

The integrated short message center receives the calling short message of the calling terminal, and decodes the calling short message according to the network protocol type of the calling terminal to obtain the message content;

The integrated short message center converts the content of the message into an encoded message of a first format, and obtains a network type of the destination terminal according to the routing information, and converts the encoded message of the first format into a network protocol type of the destination terminal. Encoded message in a second format;

The integrated short message center sends the encoded message of the second format to the destination terminal. The first format is a short message point-to-point protocol SMPP protocol format.

The integrated short message center converts the content of the message into the encoded message of the first format: the integrated short message center supports character characters other than Chinese and English by adding a character set conversion interface of the SMPP protocol.

The method further includes: when the encoded message of the second format exceeds a predetermined length threshold, splitting the encoded message of the second format.

The network protocol type of the calling terminal is GSM, CDMA, PHS, SIP or SMPP; the network protocol type of the destination terminal is GSM, CDMA, PHS, SIP or SMPP. The integrated short message center learns the network type of the destination terminal according to the routing information: the integrated short message center obtains routing information according to the pre-configured number segment information, and then obtains the network type of the destination terminal by using the routing information.

The integrated short message center converts the encoded message in the first format into the encoded message in the second format supported by the network protocol type of the destination terminal:

When the type of the second format supported by the network protocol type of the destination terminal includes the first format, the encoded message of the first format is directly used as the encoded message of the second format without performing conversion; Alternatively, if the destination terminal is configured with a desired coding mode, the desired coding mode is directly used as the second format.

In another aspect, an integrated short message center system is provided, including: a receiving module, a decoding module, an encoding module, a conversion module, and a sending module;

The receiving module is configured to receive a calling short message of the calling terminal;

The decoding module is configured to decode the calling short message according to a network protocol type of the calling terminal, to obtain a message content;

The encoding module is configured to convert the content of the message into an encoded message of a first format, and the converting module is configured to learn, according to the routing information, a network type of the destination terminal, and convert the encoded message of the first format into a Decoding a second format encoded message supported by a network protocol type of the destination terminal;

The sending module is configured to send the encoded message of the second format to the destination terminal. The encoding module further includes a splitting unit, configured to split the encoded message of the second format when the encoded message of the second format exceeds a predetermined length threshold.

The first format is an SMPP protocol format;

The network protocol type of the calling terminal is: GSM, CDMA, PHS, SIP or SMPP; the network protocol type of the destination terminal is: GSM, CDMA, PHS, SIP or SMPP. The conversion module learns the network type of the destination terminal according to the routing information: the conversion module obtains routing information according to the pre-configured number segment information, and then learns the network type of the destination terminal from the routing information.

The converting module converts the encoded message of the first format into the encoded message of the second format supported by the network protocol type of the destination terminal:

When the type of the second format supported by the network protocol type of the destination terminal includes the first format, the conversion module does not perform the conversion, and directly uses the encoded message of the first format as the encoded message of the second format. ; Alternatively, if the destination terminal is configured with a desired coding mode, the conversion module directly uses the desired coding mode as the second format.

The present invention has the following technical effects:

1) The present invention unifies the processing flow of the code stream decoding and encoding in the GSM, CDMA, PHS and SIP integrated short messages by the service processor, unifies the service logic interface, and reduces the complexity of the integrated short message center processing.

2) The invention can solve the problem that the different network interfaces in the integrated short message center respectively process the message content codec, and provides strong support for the integrated short message center to adapt to various network intercommunication messages.

3) The invention reduces the complexity and difficulty of processing codec in the integrated short message center by uniformly synthesizing the code content of the short message center, improves the reuse rate of the business process, and unifies the shortness of multiple network protocol interfaces. The codec processing of the message enables the intricate interworking messages between GSM, CDMA, PHS, SIP and ESME to be accurately parsed.

4) The present invention is extensible. For non-Chinese, non-English numeric text character encoding, only need to increase the character conversion interface with the SMPP protocol to support. In addition, the intermediate coding mode may be other internationally common coding methods other than the SMPP protocol, such as UTF8. DRAWINGS

1 is a flow chart of steps provided by an embodiment of a method according to the present invention;

2 is a flow chart of the steps of the embodiment of the present invention for the SMPP format; FIG. 3 is a schematic diagram of the method for converting the different character sets by the integrated short message center according to an embodiment of the present invention; The logical structure block diagram of the integrated short message center system; FIG. 5 is a structural diagram of the integrated short message center system and the external network element networking of the present invention;

6 is a diagram showing the internal organization structure of the integrated short message center system of the present invention. detailed description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the detailed description of the embodiments will be described below in conjunction with the accompanying drawings.

FIG. 1 is a flow chart of steps according to an embodiment of a method of the present invention. As shown in the figure, an embodiment of the method of the present invention includes:

Step 101: The integrated short message center receives the calling short message of the calling terminal.

Step 102: The integrated short message center decodes the short message according to the network protocol type of the calling terminal to obtain a message content.

Step 103: The integrated short message center converts the message content into an encoded message of a first format.

Step 104: The integrated short message center learns the network type of the destination terminal according to the routing information, and converts the encoded message of the first format into the encoded message of the second format supported by the network protocol type of the destination terminal.

Step 105: The integrated short message center sends the encoded message of the second format to the target terminal.

The first format may be GSM, CDMA, PHS, SIP, or Short Message Peer to Peer Protocol Specification (SMPP). The following is mainly exemplified by the SMPP protocol format. Personnel can be obtained according to the following examples of the SMPP protocol format.

The present invention is directed to a comprehensive short message center, and proposes a unified codec method and system. The short message center encodes a start message encoded by 7bit ASCII, 8bit ASCII, 8bit binary, UCS2, UTF8, GBK, GB2312-80, etc. (here, the national standard character encoding scheme is taken as an example), and the SMPP protocol is uniformly adopted in the short message center. The character encoding scheme is saved, and is encoded according to a coding scheme supported by the destination user's home network during the termination call encoding. If the length of the code stream exceeds the maximum length supported by the destination network after the conversion, the single clause according to the SMPP protocol The maximum length of the information is split.

Practice has proved that this unified codec method enables the message content of different networks within the short message center to be processed by only one interface, which improves the reuse rate of the business process and reduces the complexity of the codec.

Specifically, the unified codec processing method in which the first format is the SMPP protocol format is as follows:

1) The terminal submits a message of GSM, CDMA, PHS, SIP or SMPP protocol to the short message center.

2) The short message center decodes the message content according to the network type of the calling user, and decodes the decoded message content into the SMPP protocol code stream. For example: The GSM terminal submits a 7-bit ASCII encoded message to the CDMA terminal, and the service processor parses according to the GSM03.38 specification and then converts it into an 8-bit ASCII code of the SMPP protocol. For the start message with the serial header, it needs to be processed by the message header.

3) The short message center learns the network type of the destination user according to the routing information, and converts the code stream of the internally saved SMPP protocol into the code stream supported by the destination network. For example, the GSM terminal submits a 7-bit ASCII encoded message to the CDMA terminal, and the service processor converts the internally stored 8-bit ASCII code stream into a 7-bit ASCII code stream supported by the CDMA network. For the long message after the final call code, it needs to be split.

4) If the destination user wants to encode according to a certain character set, the SMS center can flexibly configure it. For example: The GSM terminal sends a message to CDMA, and the call origination is encoded in 7-bit ASCII. The SMS center defaults to the 7-bit ASCII coded CDMA call, and if the destination user wants to press UCS2, the SMS center can satisfy the configuration information.

5) If you need to support text characters in other countries other than Chinese, you only need to add the character set conversion interface with SMPP to support.

2 is a flow chart of the steps of the embodiment of the present invention, which is unified into the SMPP format, and is described below in conjunction with FIG. 2. As shown in FIG. 2, the message center encodes and decodes the message content. The process is as follows:

Step 201: Obtain a network protocol type of the calling user. Specifically, the terminal or the gateway submits the message to the integrated short message center, and the short message center obtains the network protocol type of the calling user according to the internal interface of the message, and the values include GSM, CDMA, PHS, SIP, and SMPP.

Step 202: Parse the code stream according to the corresponding network protocol. Specifically, the short message center decodes the entire data packet according to the type of the obtained network protocol according to the corresponding standard specification. GSM decoding specification reference ETSI TS123 040 V8.4.0; CDMA decoding specification reference TIA-637-Cl [E]_C.S0015-B_v2.0_051006; SMPP reference Short Message Peer to Peer Protocol Specification v3.4 specification; PHS, SIP Refer to the specifications established by each operator.

Step 203: Obtain an encoding type of the source message. Specifically, the encoding scheme of the message content is obtained from the parsed data packet. The values may be 7bitASCII, 8bitASCII, 8bit binary, UCS2, GBK:, UTF8.

For the GSM terminal call message, the Data Coding Scheme (DCS) takes the following values: 7bitASCII, 8bitASCII, UCS2.

For CDMA terminal call messages, DCS is 7bit ASCII, 8bit ASCII, 8bit binary,

UCS2.

For the PHS terminal call message, the DCS value is 8bit ASCII and GBK.

For SIP terminal call messages, the DCS values are 8bit ASCII, GBK, and UTF8.

For ESME call messages, the DCS values are 8bit ASCII, 8bit binary, GBK, UCS2. Step 204: Save the user data to the SMPP protocol format. Specifically, the content of the parsed message is converted into a coding scheme corresponding to the SMPP protocol format and temporarily stored.

For 7bit ASCII and 8bit ASCII, both are converted to 8bit ASCII.

For 8bit binary, save directly.

For GBK, UTF8, UCS2, all are converted to UCS2.

Step 205: Split the converted long message. Specifically: For converted SMPP The message content of the protocol format is split if the message is too long. Here, the agreed threshold is: UCS2 encodes a maximum of 140 bytes, and 8-bit ASCII encodes a maximum of 160 bytes.

The long conversion process is that GBK is converted to UCS2, and the split message does not add a message header, forming an irrelevant message.

Step 206: Obtain destination user routing information. Specifically, the routing information of the destination user is obtained according to the segment information configured in the short message center. The routing information contains the network type of the destination user. The values are GSM, CDMA, PHS, SIP, SMPP. In the implementation process, there are 25 combined processes between GSM, CDMA, PHS, SIP and ESME.

Step 207: Encode the user data in the terminating code stream according to the network type of the destination user. Specifically: The short message center encodes the message and terminates the call.

There are only three types of encodings saved in the SMS center: 8bitASCII, 8bit binary, UCS. The SMS Center determines whether to perform transcoding according to whether the destination user supports the internally saved character encoding scheme.

If the destination user supports these three coding schemes, no transcoding is necessary.

If the destination user does not support these three coding schemes, then coding conversion is required.

When coding conversion, the default is based on the network type of the destination user.

In the case of transcoding, if the destination user configures the desired character encoding format, the configuration is prioritized.

Figure 3 shows the rules for converting different character sets into a comprehensive SMS center, as shown in the figure:

First, the short message center receives four types of message content: pure English numeric characters, binary, mixed Chinese and English characters, and other national text characters.

Then, the short message center decodes the contents of the message and converts it into a stream of the SMPP protocol format. Both 7bitASCII and 8bitASCII are converted to 8-bit ASCII of SMPP protocol; 8bit binary is converted to 8-bit binary of SMPP protocol; UCS2, GBK and UTF8 are both converted to UCS2. Finally, the terminal call coding is performed according to the network type to which the destination user belongs and the configured desired coding scheme.

For text character messages in other countries, the short message center can be extended as long as the Unicode encoding scheme supports it.

In another aspect of the present invention, an integrated short message center system is provided. FIG. 4 is a block diagram showing a logical structure of an integrated short message center system according to an embodiment of the present invention. As shown in FIG. 4, the integrated short message center provided by the embodiment of the present invention is provided. The system includes:

The receiving module 401 is configured to receive a calling short message of the calling terminal.

The decoding module 402 is configured to decode the calling short message according to a network protocol type of the calling terminal, to obtain a message content;

The encoding module 403 is configured to convert the message content into an encoded message in a first format. The converting module 404 is configured to learn, according to the routing information, a network type of the destination terminal, and convert the encoded message in the first format into the destination. An encoded message of a second format supported by the network protocol type of the terminal;

The sending module 405 is configured to send the encoded message of the second format to the destination terminal. The encoding module 403 may further include a splitting unit, configured to perform splitting processing when the encoded message of the second format exceeds a predetermined length threshold.

FIG. 5 is a structural diagram of an integrated short message center system and an external network element network. As shown in FIG. 5, the integrated short message center implements message intercommunication of GSM, CDMA, PHS, SIP, and SMPP protocols. The short message center receives messages submitted from GSM, CDMA, PHS terminals.

Figure 6 is an internal structure diagram of the integrated short message center system. The function of the Signalling Front-end (MAP) is to convert standard signaling and internal interface messages. The messages sent and received by GSM, CDMA, and PHS terminals need to pass through this module. The function of the SMPP proxy module (SMPPAGENT) is to convert the messages of the SMPP protocol with the internal interface messages. The external short message entity (ESME) needs to send and receive messages. Through this module. The function of the SIP gateway module (SIPGW) is to convert the SIP protocol message with the internal message. The function of the SIP distribution module (SIPPROXY) is to distribute the SIP message to the SIPGW module according to a certain policy. The SIP terminal and the SIP application server need to send and receive messages via the SIP terminal. These two modules, the above modules, mainly implement the functions of the receiving module 401 and the transmitting module 405 in FIG.

The role of the Service Processor Module (SERV) is mainly to implement the functions of the decoding module 402, the encoding module 403, and the conversion module 404 in FIG.

As can be seen from the above, the embodiments of the present invention have the following advantages:

2) Through the above solution of the present invention, it is possible to solve the problem that the different network interfaces separately process the message content codec in the integrated short message center. It provides strong support for the integration of short message centers to adapt to various network communication messages.

4) The present invention is extensible. For non-Chinese, non-English numeric text character encoding, only need to increase the character conversion interface with the SMPP protocol to support. In addition, the intermediate coding mode may be other internationally common coding methods other than the SMPP protocol, such as UTF8.

The above is only the embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

A method for uniformly encoding and decoding a message content, comprising:

The integrated short message center sends the encoded message of the second format to the destination terminal.

The method according to claim 1, wherein the first format is a short message point-to-point protocol SMPP protocol format.

The method according to claim 2, wherein the integrated short message center converts the message content into an encoded message of a first format: the integrated short message center increases a character set conversion interface of the SMPP protocol, Support for text characters other than Chinese and English.

The method according to claim 2, wherein the method further comprises: splitting the encoded message of the second format when the encoded message of the second format exceeds a predetermined length threshold.

The method according to any one of claims 1 to 4, wherein the network protocol type of the calling terminal is GSM, CDMA, PHS, SIP or SMPP;

The network protocol type of the destination terminal is GSM, CDMA, PHS, SIP or SMPP.

The method according to claim 5, wherein the integrated short message center knows the network type of the destination terminal according to the routing information: the integrated short message center obtains routing information according to the pre-configured number segment information, and then The routing information learns the network type of the destination terminal.

The method according to claim 5, wherein the integrated short message center converts the encoded message in the first format into the encoded message in the second format supported by the network protocol type of the destination terminal: When the type of the second format supported by the network protocol type of the destination terminal includes the first format, the encoded message of the first format is directly used as the encoded message of the second format without performing conversion;

Alternatively, if the destination terminal is configured with a desired coding mode, the desired coding mode is directly used as the second format.

An integrated short message center system, the system comprising: a receiving module, a decoding module, an encoding module, a conversion module, and a sending module;

The sending module is configured to send the encoded message of the second format to the destination terminal.

The integrated short message center system according to claim 8, wherein the encoding module further comprises a splitting unit, configured to: when the encoded message of the second format exceeds a predetermined length threshold, The encoded message of the second format is split.

The integrated short message center system according to claim 8 or 9, wherein the first format is an SMPP protocol format;

The network protocol type of the calling terminal is: GSM, CDMA, PHS, SIP or SMPP; the network protocol type of the destination terminal is: GSM, CDMA, PHS, SIP or SMPP.

The integrated short message center system according to claim 8 or 9, wherein the conversion module knows the network type of the destination terminal according to the routing information: the conversion module obtains routing information according to the pre-configured number segment information, and then The routing information learns the network type of the destination terminal.

The integrated short message center system according to claim 8 or 9, wherein the conversion module converts the encoded message of the first format into the encoded message of the second format supported by the network protocol type of the destination terminal. :

When the type of the second format supported by the network protocol type of the destination terminal includes the first format, the conversion module does not perform the conversion, and directly uses the encoded message of the first format as the encoded message of the second format. ;

Alternatively, if the destination terminal is configured with a desired coding mode, the conversion module directly uses the desired coding mode as the second format.