WO2012027932A1

WO2012027932A1 - Method, equipment and terminal for encoding/decoding short message

Info

Publication number: WO2012027932A1
Application number: PCT/CN2010/079351
Authority: WO
Inventors: 于辉
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-09-03
Filing date: 2010-12-01
Publication date: 2012-03-08
Also published as: CN101938719A

Abstract

The present invention discloses a method, an equipment and a terminal for encoding/decoding a short message. The method includes the short message is set as a Universal Multiple-Octet Coded Character Set (UCS2) format (S102); a coding format identification to each character in the UCS2 format messages is performed (S104); if all the characters in the short message can be identified by the same preset coding format, the preset coding format is used to encode the short message (S106). By the present invention, the usability of the terminal is improved.

Description

TECHNICAL FIELD The present invention relates to the field of communications, and in particular to a short message encoding and decoding method, apparatus, and terminal. BACKGROUND OF THE INVENTION Short messages are a basic service provided by a mobile communication system to a user, which enables mobile terminals to transfer text or multimedia materials to each other. Among them, the short message monthly service that delivers text content is widely used. The text content passed between the mobile terminal and the short message center via the mobile communication network must be encoded and decoded. The 3rd Generation Partnership Project (3GPP) Protocol 23.038 stipulates that there are three formats for encoding text content in SMS, Global System for Mobile Communication (GSM) 7-bit encoding, 8-bit encoding. , Universal Multiple-Octet Coded Character Set (UCS) 2 encoding.

GSM7 encoding uses 7 binary digits to represent a character. The maximum number of characters that can be represented is 127. It is used for languages with less characters such as English. UCS2 encoding uses 16 binary digits to represent a character. It is a form of Unicode. The maximum number of characters that can be represented is 65536. It is used to represent languages with more characters such as Chinese. In some languages, the number of characters is slightly larger than 127, and GSM7 cannot be used. However, if UCS2 is used, it is a waste of space. Because the maximum length of a single transmission is 140 bytes according to the 3GPP protocol 23.040, if UCS2 is used, The content of a single transmission is less than half that of the GSM 7-bit encoding, so this time it can be sent using the ISO-defined 8-bit encoding. 8 8-bit encoding is not common in SMS text encoding. It is common for these countries to define the GSM7 code table by themselves, instead of the default GSM7 code table of the protocol, and still use GSM 7-bit encoding, such as Greece. In another case, the 3GPP protocol 20.038 also defines a national language extension mechanism for GSM7, which can be used to solve GSM7 encoding in languages with a slightly larger number of characters, such as Turkish, Spanish, Portuguese, and the like. In the prior art, a short message-enabled terminal (for example, a mobile phone, a fixed station, or a data card) supports only English and local language encodings. This can lead to problems. For example, when an end product needs to be shipped to a country, the short message module of the software must be changed to support the local language encoding. In order to support the local language encoding, it is necessary to tamper with the code table to recompile the software. Or modify the configuration, which increases the difficulty of software customization, increases the chance of error, and also requires more time for software customization and testing; for example, for users who frequently go abroad and change the language environment, because The terminal can only support two languages, which causes the user to not send and receive text messages in the local language during the roaming process. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a short message encoding and decoding scheme to solve at least the above problems. According to an aspect of the present invention, a short message encoding method is provided, including: setting a short message into a universal multi-byte coded character set UCS2 format; and performing encoding format recognition on each character in a short message set to a UCS2 format; In the case where all characters in the character can be recognized by the same predetermined encoding format, the short message is encoded using a predetermined encoding format. Preferably, after encoding the short message by using the predetermined encoding format, the method further includes: determining, by the predetermined encoding format, a maximum length of the maximum short message text supported by the predetermined encoding format; and dividing the short message into the level if the short message exceeds the maximum length Connected SMS. Preferably, the predetermined coding format is one of the following: Global Mobile Communication GSM7 coding, 8-bit coding, UCS2 coding, wherein the GSM7 coding is one of the following: GSM7 standard coding, national custom coding, 3rd generation partner program 3GPP countries Language extension encoding. Preferably, after the encoding format is recognized for each character in the short message, the short message is saved in the short message text buffer array; the short message is read from the short message text buffer array, and the short message is encoded using a predetermined encoding format. . According to another aspect of the present invention, a short message decoding method is provided, the method comprising: receiving a short message and determining an encoding format of the short message; and decoding the short message by using a decoding format corresponding to the encoding format. Preferably, determining the encoding format of the short message comprises: obtaining information for indicating an encoding format carried in the short message; and determining an encoding format of the short message according to the information. Preferably, determining the encoding format of the short message comprises: identifying each of the characters in the short message; and determining that the predetermined encoding format is the encoding format of the short message if all the characters in the short message are recognized by the same predetermined encoding format. . Preferably, the predetermined coding format is one of the following: global mobile communication GSM7 coding, 8-bit coding, UCS2 coding, wherein the GSM7 coding is one of the following: GSM7 standard coding, national custom coding, 3GPP national language extension coding. Preferably, after determining that the encoding format of the short message is 8-bit encoding or national custom encoding, after decoding the short message by using the decoding format corresponding to the encoding format, the method further includes: recording the 8-bit encoding or the country used in this time. The national decoding format corresponding to the custom encoding, and after receiving the short message encoded using the 8-bit encoding or the national custom encoding, the short-distance decoding is performed using the recorded national decoding format. According to another aspect of the present invention, a short message encoding apparatus is provided, the apparatus comprising: an encoding mode identifying module, configured to perform encoding format recognition on each character in a short message set to a UCS2 format; an encoding module, in a short message In the case where all characters can be recognized by the same predetermined encoding format, the short message is encoded using a predetermined encoding format. Preferably, the encoding module comprises: a GSM7 standard encoding module for encoding the short message using the GSM7 standard encoding format; a national custom encoding module for encoding the short message using the national custom encoding format; 3GPP national language extended encoding module, For encoding a short message using a 3GPP national language extended coding format; an 8-bit encoding module for encoding a short message using an 8-bit encoding format; and a UCS2 encoding module for encoding a short message using a UCS encoding module. According to another aspect of the present invention, a short message decoding apparatus is provided, the apparatus comprising: a decoding mode identifying module, configured to determine an encoding format of the received short message; and a decoding module, configured to use a decoding format pair corresponding to the encoding format SMS is decoded. Preferably, the decoding module comprises: a GSM7 standard decoding module, configured to decode a short message by using a GSM7 standard encoding format; a national custom decoding module, configured to decode a short message by using a national custom encoding format; 3GPP national language extended decoding module, For decoding a short message using a 3GPP national language extended coding format; an 8-bit decoding module for decoding an SMS using an 8-bit encoding format; and a UCS2 decoding module for decoding a short message using a UCS encoding module. According to another aspect of the present invention, a terminal is provided, the terminal comprising the above-described short message encoding device and/or the above short message decoding device. Through the invention, the short message is set to the UCS2 format; each character in the short message is encoded and formatted, and when all the characters in the short message can be recognized by the same predetermined encoding format, the predetermined encoding is used. The format encodes the text message. Solved the short support in the prior art The terminal of the letter function only supports the problems that may occur in the two language codes of English and local languages, thereby improving the usability of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 1 is a flowchart of a short message encoding method according to an embodiment of the present invention; FIG. 2 is a flowchart of a short message decoding method according to an embodiment of the present invention; FIG. 3 is a short message encoding according to an embodiment of the present invention; FIG. 4 is a block diagram showing a structure of a short message decoding apparatus according to an embodiment of the present invention; FIG. 5 is a flowchart of a preferred short message encoding method in accordance with an embodiment of the present invention; FIG. 6 is a UCS2 code according to an embodiment of the present invention. Figure 7 is a flow chart for converting a UCS2 code into an 8-bit code according to an embodiment of the present invention; Figure 8 is a flow chart of a preferred short message decoding method according to an embodiment of the present invention; Is a flowchart of extended new language support according to an embodiment of the present invention; FIG. 10 is a structural block diagram of a codec system according to an embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. In the following implementations, the coding formats mentioned include: GSM7 coding, 8-bit coding, UCS2 coding, wherein the GSM7 coding includes: GSM7 standard coding, national custom coding, 3rd Generation Partnership Project 3GPP National Language Extension Coding. Of course, if the encoding format is increased or changed relative to the above several encoding formats, the following embodiments are also applicable, and only need to be added or repaired. The corresponding codec module can be used. 1 is a flowchart of a short message encoding method according to an embodiment of the present invention. As shown in FIG. 1, the process includes the following steps: Step S102: setting a short message to a UCS2 format; Step S104, setting a short message to a UCS2 format Each character in the encoding format is recognized as 'J; Step S106, in the case where all the characters in the short message can be recognized by the same predetermined encoding format, the short message is encoded using the predetermined encoding format. The predetermined coding format is one of the following: Global Mobile Communication GSM7 coding, 8-bit coding, UCS2 coding, wherein the GSM7 coding is one of the following: GSM7 standard coding, national custom coding, 3rd generation partner program 3GPP national language Extended coding. In the above steps, by identifying the characters in the short message one by one, an encoding format that can encode all the characters is determined, and then the encoding format is used for encoding. Through such an automatic identification process, the short message can be encoded and then transmitted according to the supported encoding format, which can solve the problem that the terminal supporting the short message function in the prior art only supports the English and local language encoding. For example, the monthly SMS coding mechanism in different countries in the prior art is inconsistent, and a set of software is difficult to adapt to all countries, so that each time the software is released, the problem of hacking and configuration of the relevant parts of the short message must be falsified and configured. And defects, can automatically adapt to the SMS encoding of various national languages. Preferably, in implementation, after determining the encoding format used for the short message, the maximum length of the maximum short message text supported by the predetermined encoding format may be determined according to the predetermined encoding format, if the encoded short message exceeds the maximum length, You can make a prompt, or you can split the SMS into cascading SMS messages. Preferably, in the implementation, an array may be used for buffering, and of course, other buffering methods may be used. The following takes an array as an example for explanation. After the encoding format is recognized for each character in the short message, the short message is saved in the short message text buffer array; the short message is read from the short message text buffer array, and the short message is encoded using a predetermined encoding format. Preferably, after the short message is encoded, the encoded short message may be carried with information for indicating the short message encoding mode, so that the receiving party performs decoding. 2 is a flowchart of a short message decoding method according to an embodiment of the present invention, as shown in FIG. 2, the flow The process includes the following steps: Step S202: Receive a short message and determine an encoding format of the short message; Step S204: decode the short message by using a decoding format corresponding to the encoding format. Through the above step 4, the encoding format of the short message can be identified, so that the short message is correctly decoded. In the implementation, if the short message carries the information indicating the encoding format of the short message, the information carried in the short message for indicating the encoding format is obtained; and the encoding format of the short message is determined according to the information. Of course, the sender may also not send information for indicating the encoding format. In this case, each character in the short message may be encoded and formatted; if all the characters in the short message can be recognized by the same predetermined encoding format, , determining the encoding format of the predetermined encoding format as a short message. Preferably, in the implementation, when it is determined that the encoding format of the short message is 8-bit encoding or national custom encoding, after the short-distance decoding is performed using the decoding format corresponding to the encoding format, the 8-bit used in the current use may also be recorded. The national decoding format corresponding to the encoding or the national custom encoding, and after receiving the short message encoded using the 8-bit encoding or the national custom encoding, the short-distance decoding is performed using the recorded national decoding format. FIG. 3 is a structural block diagram of a short message encoding apparatus according to an embodiment of the present invention. As shown in FIG. 3, the apparatus includes: an encoding mode identifying module 32 and an encoding module 34, which will be described below. The coding mode identification module 32 (or simply the code recognition module) is configured to perform coding format recognition on each character in the short message set to the UCS2 format; the coding module 34 is connected to the coding mode identification module 32, and all characters in the short message. In the case where both can be identified by the same predetermined encoding format, the short message is encoded using a predetermined encoding format. In implementation, the encoding module 34 may include: a GSM7 standard encoding module for encoding a short message using a GSM7 standard encoding format; a national custom encoding module for encoding a short message using a national custom encoding format; 3GPP national language An extended coding module for encoding a short message using a 3GPP national language extended coding format; an 8-bit encoding module for encoding a short message using an 8-bit encoding format; and a UCS2 encoding module for encoding a short message using a UCS encoding module . FIG. 4 is a structural block diagram of a short message decoding apparatus according to an embodiment of the present invention. As shown in FIG. 4, the apparatus includes: a decoding mode identification module 42 and a decoding module 44, which will be described below. The decoding mode identification module 42 (or simply the decoding identification module) is configured to determine an encoding format of the received short message; the decoding module 44 is coupled to the decoding mode identifying module 42 for decoding the short message by using a decoding format corresponding to the encoding format. . In implementation, the decoding module 44 may include: a GSM7 standard decoding module for decoding a short message using a GSM7 standard encoding format; a national custom decoding module for decoding a short message using a national custom encoding format; 3GPP National Language Extension The decoding module is configured to decode the short message by using the 3GPP national language extended encoding format; the 8-bit decoding module is configured to decode the short message by using the 8-bit encoding format; and the UCS2 decoding module is configured to decode the short message by using the UCS encoding module. It should be noted that the codec module may be modified or deleted according to actual needs. FIG. 5 is a flowchart of a preferred short message encoding method according to an embodiment of the present invention. As shown in FIG. 5, the process includes the following steps: Step S501: Set a code of a short message input text box to UCS2. Step S502, the user inputs the text to be sent in the short message input text box. In order to prompt the user how many characters have been input, how many text messages are sent, and after each character is input, the code recognition module is called to judge the destination coding format. In step S503, after the user clicks the "send" button, an SMS text buffer array is created, and the length is 160 Int type data. The reason for this is that the maximum length of a text message sent each time is 160 characters. Get the characters in the text box and copy the characters in the text box into the text buffer array. Step S504, constructing a short message data structure for process control. Step S505: Scan the text buffer array to determine whether the short message is a cascaded short message, the number of cascaded messages, and the basis for determining the cascaded short message is: If all the characters are GSM7 default code characters or GSM7 extended code characters, exceed 160 characters are cascading text messages, and the length of a single line in the cascading is 153. If one character is a UCS2 code character and more than 70 characters are cascaded text messages, the length of the single line in the cascade is 67. If all characters do not contain UCS2 code characters, but contain national extension code characters, then more than 155 characters are cascaded text messages, and the length of the point bar in the cascade is 149. Write these two data to the SMS data structure. Step S506, if the short message coding type is 7 bits, start conversion according to FIG. 6, and convert the UCS2 code of each character in the text buffer into GSM7 code. In step S507, if the short message encoding type is UCS2, no conversion is needed. Still maintain UCS2 encoding. Step S508, if the short message encoding type is 8 bits, call FIG. 7 to start conversion, and convert the UCS2 code of each character in the text buffer into an 8-bit code. In step S509, the cascading short message is opened, and the cascading short message in the text buffer is disassembled according to the maximum length that can be sent by the single strip, and the content is sequentially transmitted to the short message sending system. FIG. 6 is a flowchart of converting UCS2 code into GSM7 code according to an embodiment of the present invention. As shown in FIG. 6, the process includes the following steps: Step S601: Read a UCS2 character from a text buffer. Step S602, step S502 will inform the UCS2 character which GSM7 bit code is to be encoded. Step S603, if the GSM7 default code is to be programmed, the GSM7 default encoding/decoding module is called. Step S604, if a GSM7 spreading code is to be coded, the GSM7 extended encoding/decoding module is called. Step S605, if the national extension code is to be compiled, the 3GPP national language extension encoding/decoding module is called. The code value consists of two code values. The first one is the fixed flag bit Oxlb, and the second code value is searched by two methods: Single Shift and Lock Shift. Step S606, if the national custom GSM7 code is to be compiled, the national custom encoding/decoding module is called. Step 4 gathers S607, repeats step 4 to gather S401-step 4 to gather S406, until all the characters in the text buffer are converted. FIG. 7 is a flowchart of converting UCS2 code into 8-bit code according to an embodiment of the present invention. As shown in FIG. 7, the process includes the following steps: Step S701: Read a UCS2 character from a text buffer. Step S702: From the national language file, respectively read the coding table of the currently defined country using 8-bit characters. The specific logical data structure is a hash table. Step S703, the UCS2 character in step S701 is searched in the encoding hash table, and if found, the corresponding hash table value (8-bit encoding) is used instead of the original UCS2 value. Step S704, returning to step S701, until all the characters in the text buffer are converted. FIG. 8 is a flowchart of a preferred short message decoding method according to an embodiment of the present invention. As shown in FIG. 8, the process includes the following steps: Step S801: A short message PDU string to be decoded is transmitted to the system. Step S802, invoking a decoding identification module to determine a destination decoding format. Step S803, if it is an 8-bit code, the 8-bit coded country identification module is called to continue to identify

¹³ that country. Step 4 gathers S 804, if it is a national language custom code or standard GSM7 code, then call

The GSM7 standard and the National Custom Extended Identification Module continue to be identified. Step S805, constructing a short message data structure. Step S 806, if standard GSM7 decoding is used, the standard GSM7 codec module is called. Step S807, if 8-bit code decoding is used, the 8-bit codec module is called. Step 4 gathers S808. If UCS2 encoding is used, the UCS2 decoding module is called to keep the encoding unchanged. Step S809, if the 3GPP national language extension coding is used, the 3GPP national language extension codec module is invoked. Step S810, if the national custom GSM7 encoding is used, the national custom codec module is called to decode. In step S811, the decoded text is put into the short message data structure, and the cascaded short message is stitched. FIG. 9 is a flowchart of extended new language support according to an embodiment of the present invention. As shown in FIG. 9, the process includes the following steps: Step S901: Obtain information, 8-bit encoding used by the national language encoding, and 3GPP national language extension. Coding, or national custom coding. Step S902, if an 8-bit encoding is used, an 8-bit encoding/decoding table file of the country is created and placed in an 8-bit code table folder for the 8-bit encoding/decoding module to call. Make an 8-bit code judgment array file, put it into the judgment array folder, and call it for the national language recognition module. Step S903, if the national custom code is used, the custom GSM7 code/decode table file of the country is created and placed in the national custom GSM7 code table folder. Make a national custom code judgment array file, put it into the judgment array folder, and call it for the national language recognition module. Step S904, if the 3GPP national language extension is used, the Single Shift encoding/decoding table and the Lock Shift encoding/decoding table of the 3GPP national language extension of the country are created and placed in the 3GPP national language extension code table folder. Make a 3GPP national language extension judgment array, put it into the judgment array folder, and call it for the national language recognition module. In another embodiment, a terminal is provided, including: the foregoing short message encoding device and/or the short message decoding device. A preferred terminal embodiment will now be described. The terminal includes: a standard GSM7 codec module, a UCS2 codec module, which can be implemented using existing hardware or software modules. The terminal further includes: a 3GPP national language extension codec module, and an 8-bit codec module. In this embodiment, the two modules can automatically load a new code table to implement support for the new language. In the following description, the short message encoding is divided into two processes: encoding mode identification, encoding. The SMS decoding is divided into two processes: decoding mode identification, decoding. In this embodiment, the functions of each module in the process of short message encoding are as follows: The short message text to be encoded is transmitted into the system in UCS2 (Unicode) format. The encoding mode identification module reads the judgment array and identifies the destination encoding format of the text. This recognition is traversed once, that is, only when each character in the short message text is recognized as an encoding format, the target encoding format of the entire text can be considered as a certain format. If the coding mode identification module recognizes that the standard GSM7 coding is required, the standard GSM7 codec module is invoked; if the coding mode identification module determines that the 3GPP national language extension coding is required, the 3GPP national custom codec module is invoked; The mode identification module determines that the national custom GSM 7-bit code needs to be used, and then calls the national custom codec module; if the code mode identification module recognizes that 8-bit code is needed, the 8-bit codec module is called; The mode identification module recognizes that the UCS2 code needs to be used, and then calls the UCS2 codec module. After the encoding is completed, a short message PDU string is generated and output to the short message sending software. In this embodiment, the functions of each module in the process of short message decoding are as follows: The PDU string to be decoded is transmitted as input into the system. The decoding mode identification module initially determines the target decoding format of the PDU string according to the DCS field of the PDU string and the information unit of the short message header. If the decoding mode identification module recognizes that the UCS2 code is used, the UCS2 codec module is called to decode. If the decoding mode identification module recognizes the 8-bit code, further calls the 8-bit coded country identification module, which has an empirical memory and judgment function, identifies which country is the 8-bit code, and then calls the 8-bit codec module. decoding. If the decoding mode identification module recognizes that the 3GPP national language extension GSM7 code is used, the 3GPP national language extension codec module is invoked. If the decoding mode identification module is in the short message header information, no short message format is found. Then the national custom extension identification module is further called, which has an empirical memory and judgment function, and identifies whether the standard GSM7 code or the national custom extended GSM7 code should be used. If the national custom extension identification module recognizes that the standard GSM7 code is required, the standard GSM7 codec module is called for decoding. If the national custom extension identification module recognizes that the national custom extension GSM7 code needs to be used, the national custom codec module is called to decode. In addition, there is a configuration and support module that can be used in the encoding and decoding process. The function of the module is to manage the short message data structure for the text before the encoding and the encoded code, and record each management data, such as the short message header and level. Information, etc. In addition, the module is also responsible for managing the transfer of SMS data structures between modules, as well as the input and output of the entire system. This embodiment has the following technical effects:

1. Automatically adapt multi-language SMS encoding without recompiling the software or tampering with any configuration items.

2. Strong ability to expand, you can quickly join the support of other countries' languages without recompiling the program.

3. A mechanism for intelligent judgment and memory is proposed, which deals with the 8-bit code, the national custom code and the standard GSM 7-bit code.

4. It saves software customization time for different countries, improves software reliability, and improves end-user body-risk. In another embodiment, the above module may also exist as a system. FIG. 10 is a structural diagram of a codec system according to an embodiment of the present invention. The codec system will be described below with reference to FIG. As shown in Figure 10, the system consists of a coding mode identification module, a decoding mode identification module, a GSM7 standard and a national custom extension identification module, an 8-bit coded national identification module, a standard GSM7 codec module, an 8-bit codec module, and a UCS2 code. Decoding module, 3GPP national language extended codec module, national custom codec module, configuration and support modules. The code recognition module is configured to identify a destination encoding format of the short message according to the input character. For example, the standard GSM7 default character array, the standard GSM7 extended character array, the character array of each country of the 3GPP national language extension, the 8-bit national coded character array, and the country-defined character array are sequentially read. When it is found that all characters fall into a character array, the destination encoding format can be confirmed. If any character cannot be found in the character array, it is judged that the destination encoding format is UCS2 encoding. Standard GSM7 codec module for conversion between standard GSM7 code and UCS2 code. National custom codec module for conversion between national custom GSM7 code and UCS2 code. This module has more than one code table, corresponding to different countries, with different code tables, which can dynamically load the newly added code table.

UCS2 codec module for verification and transmission of UCS2 coded characters.

8-bit encoding/decoding module for conversion between 8-bit code and UCS2 code. According to the definition of ISO-8859, 8-bit code tables are not unique, and countries that use alphabetic characters usually have their own 8-bit code tables. This module can dynamically load the newly added code table.

3GPP National Language Extension Codec module for conversion between 3GPP national language extension codes and UCS2 encoding. This module has more than one code table, corresponding to different countries, with different code tables, which can dynamically load the newly added code table. a decoding identification module, configured to determine a destination decoding format according to the input PDU string to be decoded: according to a DCS field and a short message header information of the PDU string, according to a definition of 3GPP protocol 23.040, determining that the destination encoding format is GSM7 encoding, 8-bit encoding , UCS2 encoding, or 3GPP national extension coding, and then enter the corresponding decoding module. Specifically, which country code table of 8-bit code is used, or standard GSM7 and national custom extension, the module is not responsible and is handled by the latter two modules. The GSM7 standard and the national custom extension identification module are used to judge the standard GSM7 and national custom extension identification. The module has intelligent judgment and memory function. The first time according to the local language setting (such as Locale under Linux operating system) and the encoding method when sending text messages, comprehensive judgment is made to use standard GSM7 or national custom decoding. Users can get it. After the result is adjusted, the module will record the user's adjustment and determine which decoding method to use for the next decoding.

The 8-bit coded national identification module is used to judge which country's 8-bit code table is used. The module uses intelligent judgment and memory. The first time, according to the local language setting (such as Local under Linux) and the encoding format used when sending text messages, it can comprehensively determine which country's 8-bit code table should be used for decoding. The user can adjust after obtaining the result, and the module will record the user's adjustment to determine which decoding method to use for the next decoding. The configuration and support module is configured to define a short message data structure, receive the short message content, fill in the short message data structure, and interact with the short message receiving/transmitting system. Define the SMS data structure, which corresponds to the protocol of the 3GPP SMS format. At the same time, other programs implement the required data fields. This SMS data structure is implemented to accommodate the entire cascaded SMS. In summary, through the above embodiments, multi-language short message encoding and decoding can be simultaneously supported. The system supports all currently known encoding formats, and can automatically match the encoding of the current national language according to user input and received short message content. Form, call the corresponding code table and codec. At the same time, the system has good scalability and can quickly support the expansion of language codes that are not currently supported. For customers who frequently go abroad, using the terminal products of the above embodiments, it is not necessary to replace and upgrade the software, and the local language text messages can be correctly received and transmitted all over the world. In addition, through the above embodiments, the same set of short message modules can be used for terminal products shipped to different countries, which reduces the difficulty of software customization, especially language coding module customization, and can also reduce the probability of errors and ensure the quality of software products. And time nodes. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred 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 scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim method A short message encoding method, which is characterized in that it comprises:

Set the SMS to the general multi-byte coded character set UCS2 format;

Encoding format recognition for each character in the short message set to UCS2 format;

In the case where all characters in the short message can be recognized by the same predetermined encoding format, the short message is encoded using the predetermined encoding format. The method according to claim 1, wherein after encoding the short message by using the predetermined encoding format, the method further includes:

Determining a maximum length of the maximum short message text supported by the predetermined encoding format according to the predetermined encoding format;

In the case where the short message exceeds the maximum length, the short message is split into a concatenated short message. The method according to claim 1, wherein the predetermined encoding format is one of: Global System for Mobile Communications, GSM7 encoding, 8-bit encoding, UCS2 encoding, wherein the GSM7 encoding is one of the following: GSM7 standard encoding , National Custom Code, 3rd Generation Partnership Project 3GPP National Language Extension Coding. The method according to any one of claims 1 to 3, characterized in that

After performing encoding format recognition on each character in the short message, saving the short message in an SMS text buffer array;

The short message is read from the short text text buffer array and the short message is encoded using the predetermined encoding format. A short message decoding method, comprising:

Receiving a short message and determining an encoding format of the short message;

The short message is decoded using a decoding format corresponding to the encoding format.

The method according to claim 5, wherein determining an encoding format of the short message comprises:

Acquiring information for indicating the encoding format carried in the short message; determining an encoding format of the short message according to the information.

The method according to claim 5, wherein determining the encoding format of the short message comprises:

Performing an encoding format identification on each character in the short message;

In a case where all characters in the short message can be identified by the same predetermined encoding format, the predetermined encoding format is determined to be an encoding format of the short message.

The method according to any one of claims 5 to 7, wherein the predetermined coding format is one of the following: global mobile communication GSM7 coding, 8-bit coding, UCS2 coding, wherein the GSM7 coding For one of the following: GSM7 standard coding, national custom coding, 3GPP national language extension coding.

The method according to claim 8, wherein, in the case that the encoding format of the short message is determined to be 8-bit encoding or national custom encoding, the decoding format corresponding to the encoding format is used. After the SMS is decoded, it also includes:

ΐ Have recorded the national decoding format corresponding to the 8-bit code or the national custom code used this time, and after receiving the message encoded by the 8-bit code or the country-custom code next time, use the national decoding format of the record. The short message is decoded.

10. A short message encoding device, comprising:

The coding mode identification module is configured to perform coding format recognition on each character in the short message set to the UCS2 format;

The encoding module encodes the short message using the predetermined encoding format if all characters in the short message can be recognized by the same predetermined encoding format.

The device according to claim 10, wherein the encoding module comprises:

a GSM7 standard encoding module for encoding the short message using the GSM7 standard encoding format;

a national custom coding module for encoding the short message using a national custom coding format; a 3GPP national language extension coding module, configured to encode the short message by using a 3GPP national language extended coding format;

An 8-bit encoding module for encoding the short message using an 8-bit encoding format;

The UCS2 encoding module is configured to encode the short message by using a UCS encoding module.

12. A short message decoding device, comprising:

a decoding mode identifying module, configured to determine an encoding format of the received short message, and a decoding module, configured to decode the short message by using a decoding format corresponding to the encoding format.

The device according to claim 12, wherein the decoding module comprises:

a GSM7 standard decoding module for decoding the short message using a GSM7 standard encoding format;

a national custom decoding module for decoding the short message using a national custom encoding format;

a 3GPP national language extension decoding module for decoding the short message using a 3GPP national language extension coding format;

An 8-bit decoding module for decoding the short message using an 8-bit encoding format;

The UCS2 decoding module is configured to decode the short message by using a UCS encoding module.

A terminal, comprising: the short message encoding device according to any one of claims 10 to 11 and/or the short message decoding device according to any one of claims 12 to 13.