CN101674552A - Short message coding method and terminal - Google Patents
Short message coding method and terminal Download PDFInfo
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- CN101674552A CN101674552A CN200910093570A CN200910093570A CN101674552A CN 101674552 A CN101674552 A CN 101674552A CN 200910093570 A CN200910093570 A CN 200910093570A CN 200910093570 A CN200910093570 A CN 200910093570A CN 101674552 A CN101674552 A CN 101674552A
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Abstract
The invention provides a short message coding method and a terminal, wherein the method is used for coding characters to be transmitted by the short message; and the method comprises: step one, codingthe characters to be transmitted to obtain a short message body, wherein the short message body comprises a first type of characters coded by a first coding mode and a second type of characters codedby a second coding mode, and when bit number necessary for the first coding mode is more than that for the second coding mode, the amount of the first type of characters using the first coding mode is less than a first threshold; and step two, setting a mark bit map, wherein the mark bit in the mark bit map corresponds to the coding mode used by the characters in the short message body. Aiming atdifferent types of characters, the technology provided by embodiment of the invention adopts different coding modes, thus making full use of space length of the short message body, efficiently increasing the number of characters carried in a short message, improving the utilization rate of network resource, and reducing the short message cost of users.
Description
Technical field
The present invention relates to the communication technology, be meant a kind of short message coding method and terminal especially.
Background technology
In the modern society, portable terminal has become the requisite communication tool of people, utilizes note to communicate, and can save the time and the expense of communication two party, so the application of note is increasingly extensive.
In present portable terminal, dual mode is generally adopted in the encoding and decoding of note: American National Standard information permuted code (ASC II, American Standard Code for International Interchange) coded system and universal character set 2 (UCS2, Unicode Character Set 2) coded system; ASC II coding has been stipulated the coded system of 128 characters, only need take back 7 an of byte, be the 7bit coding, and UCS2 is the 16bit coding with two byte codes.
Article one, the length of note is 1120bit altogether, therefore, adopts ASC II sign indicating number coding can once send 160 characters, adopts the UCS2 coding can once send 70 characters.
The inventor is in realizing process of the present invention, find that there are the following problems at least in the prior art: if in the note unicode character is arranged, then the whole piece note all must adopt the UCS2 coded system, reduced by a max number of characters that short message comprises greatly, reduced the utilance of the communication resource.
Summary of the invention
The purpose of this invention is to provide a kind of short message coding method and terminal, be used for solving prior art, the number of characters that comprises in note is few, the defective that the utilance of the communication resource is low.
A kind of short message coding method, be used for encoding with the character to be transmitted of note transmission, comprise: step 1, encoding operation carried out in described character to be transmitted, obtain the note body, comprise in the described note body with the first kind character of first coded system coding and the second class character of encoding with second coded system; During bit number that the bit number that described first coded system need be used need use greater than described second coded system, the number of first kind character that adopts first coded system is smaller or equal to a first threshold; Step 2 is provided with a mark bit map, and the coded system that character adopted in the flag bit in this mark bit map and the described note body is corresponding.
A kind of terminal, be used for encoding with the character to be transmitted of note transmission, comprise: coding unit, be used for encoding operation carried out in described character to be transmitted, obtain the note body, comprise in the described note body with the first kind character of first coded system coding and the second class character of encoding with second coded system; During bit number that the bit number that described first coded system need be used need use greater than described second coded system, the number of first kind character that adopts first coded system is smaller or equal to a first threshold; The flag bit unit is used to be provided with a mark bit map, and the coded system that character adopted in the flag bit in this mark bit map and the described note body is corresponding.
Use the technology that the embodiment of the invention provides, adopt different coded systems at dissimilar characters, made full use of the space length of note, effectively increase the number of characters that a note can be carried, improve network resource utilization, reduced user's note rate.
Description of drawings
Fig. 1 is a kind of short message coding method schematic flow sheet of the embodiment of the invention;
Fig. 2 is an embodiment of the invention coding method schematic flow sheet;
Fig. 3 is an embodiment of the invention coding/decoding method schematic flow sheet;
Fig. 4 carries out the decoding process schematic diagram for the embodiment of the invention adopts the expansion decoding process of extended coding mode correspondence;
Fig. 5 is an embodiment of the invention terminal structure schematic diagram one;
Fig. 6 is an embodiment of the invention terminal structure schematic diagram two;
Fig. 7 is the structural representation of the embodiment of the invention coding note after finishing.
Embodiment
For making purpose of the present invention, technical characterictic and implementation result clearer, below in conjunction with the accompanying drawings and the specific embodiments technical scheme of the present invention is described in detail.Among the embodiment provided by the invention, the code encoding/decoding mode in the portable terminal is optimized.
The embodiment of the invention provides a kind of short message coding method, is used for as shown in Figure 1, comprising encoding with the character to be transmitted of note transmission:
Step 101 (step 1) is carried out encoding operation to described character to be transmitted, obtains the note body, and described note body portion comprises with the first kind character of first coded system coding and the second class character of encoding with second coded system; During bit number that the bit number that described first coded system need be used need use greater than described second coded system, the number of first kind character that adopts first coded system is smaller or equal to a first threshold;
Step 102 (step 2) is provided with a mark bit map, and the coded system that character adopted in the flag bit in this mark bit map and the described note body is corresponding.
Use the technology that the embodiment of the invention provides, in same note the part character is adopted first coded system, another part character is adopted second coded system, then this mode is called the extended coding mode; Effectively increase the max number of characters that note can be carried, improve network resource utilization, reduced user's note rate.
The technical scheme that is provided is provided, and improves, comprising based on this technical scheme:
Mark bit map is positioned at the note head of described note, and length is no more than 140 bits.
Coded system comprises: UCS2 coded system and ASC II coded system; In the UCS2 coded system, each character takies 16 bits; In the ASC II coded system, each character takies 7 bits.
Before described step 1, also comprise: the number of characters of judging UCS2 coded system in the note to be sent is greater than a first threshold.Promptly before adopting the extended coding mode, also comprise: the first number N UM that obtains the first kind in the note body (unicode) character; When described first number during, adopt the extended coding mode less than first threshold.
Note comprises at least: note head, note body, and other parts; But for convenience of description, improvement to note head and note body is only described among the application.
In the extended coding mode, mark bit map should be positioned at the note head of note, comprises 140 flag bits altogether.If the n position of mark bit map is 0 then n character in the note body of indicator sign bitmap back is to adopt the UCS2 coded system, and if be 1 n character in the expression note body be adopt ASC II coded system (get character ASC II sign indicating number low 7 as encoding).Perhaps vice versa.The unicode character is adopted the UCS2 coded system, and then the coding of a character accounts for 16bit; English character is got low 7 codings as this character of the ASCII character of character, then the coding of a character accounts for 7bit.
In the extended coding mode, be without loss of generality, if having only 1 character to adopt the unicode coded system in a note, under this limiting case, the number of characters that this note can send is following to calculate:
Note body total length is 1120bit, deduct the long mark bit map of 140bit and also remain 980bit, the character that 1 unicode mode is encoded accounts for 16bit, also remains the coding that 964bit can be used for English character, the character of [the 964/7]=137 ASC II coded system of can encoding altogether.
Use above-mentioned technology, one contains the mode that the max number of characters that can send in the note of unicode character reaches 137+1=138 and current employing and compares and can send 68 characters by pilosity.
In the extended coding mode, the process of specifically calculating the max number of characters that can comprise in the note comprises that computing formula is as follows::
In the formula, x represents the unicode character number, and y represents the English character number.70 expressions adopt the UCS2 coding can once send 70 characters.
Can calculate x=54 to above-mentioned formula round numbers, thereby first threshold is 54, when the unicode character number just adopts the extended coding mode less than 54 the time.So, then avoided under the more situation of nicode character number, adopted the extended coding mode number of characters that can send of encoding to be less than the UCS2 coded system on the contrary.
Specifically as shown in Figure 2, comprising:
There is a short message in step 201, need begin coding to this short message.
If change step 208, otherwise change step 205.
Leave the unicode character in the note note body portion, change step 204.
ASC II character is left in the note body, change step 204.
The intrinsic coded system of current most terminal supports is UCS2 coded system and ASC II coded system.But, when intrinsic coded system during, need change formula (1) more than above-mentioned two kinds, determine first threshold with this.
" hello with the character that sends in the present embodiment! " (not containing quotation marks) illustrate the cataloged procedure of extended coding mode as an example, concrete steps comprise:
Step 1 is changed to extended coding mode 0x11 with the field that identifies short message encoding mode (TP_DCS) in the note head.
Step 2, the character number that statistics will send are 15.
Step 3 is encoded successively to 15 characters; Data mode after coding is finished in the note body as shown in Figure 7, coding step is as follows:
First flag bit of flag bit is set to 0, " you " is encoded according to the UCS2 mode, and add the data of 16bit the 141bit of note body to 156bit;
To " good " and Chinese punctuate "! " be set to 0 according to second flag bit, the 3rd flag bit of the mode flag bit identical with " you ", and with " good " and "! " encode according to the UCS2 mode, the 16bit data are added successively to the coding position afterwards of " you ".
The 4th flag bit of flag bit is set to 1, get " h " ASC II sign indicating number low 7 conducts " h " coding and the 7bit data are added to successively in the note body of coding;
According to top identical method all characters in back are encoded.
When terminal was decoded to the note of encoding according to the extended coding mode, can obtain this note according to the sign in the note head was which kind of coded system that adopts, and can decode accordingly to the note body then.Specifically as shown in Figure 3, comprising:
Coded system comprises: the extended coding mode; The UCS2 coded system; ASC II coded system.
Step 303 judges whether it is the UCS2 coded system, if change step 305, otherwise change step 304.
Step 304 judges whether it is ASC II coded system, if change step 306, otherwise change step 307.
Step 305 adopts the UCS2 decoding process to decode.
Step 306 adopts ASC II decoding process to decode.
Step 307 adopts the expansion decoding process of extended coding mode correspondence to decode.
The UCS2 decoding process is corresponding with the UCS2 coded system, that is, and and can be according to the unique UCS2 decoding process of deriving of UCS2 coded system; In like manner, ASC II decoding process is corresponding with ASC II coded system, that is, and and can be according to the unique ASC II decoding process of deriving of ASC II coded system.Therefore, the expansion decoding process also is corresponding with the extended coding mode, that is, and and can be according to the unique expansion decoding process of deriving of extended coding mode.
Step 308 is shown to the user with note in man-machine interface (MMI, Man Machine Interface), decode procedure finishes.
In decode procedure, if adopt the UCS2 decoding process decoding of UCS2 coded system correspondence, perhaps adopt the ASC II decoding process decoding of ASC II coded system correspondence, its concrete decode procedure can adopt existing flow process to carry out.Decode when the expansion decoding process that adopts extended coding mode correspondence, as shown in Figure 4, comprising:
Step 403 judges whether decoding is finished, if change step 406, otherwise change step 404.
Step 404 reads a flag bit in the mark bit map successively.
Step 405 adopts concrete decoding process to decode according to the value of the current flag bit that reads;
For example, if 1, the decoding of ASC II decoding process adopted; If 0, adopt the decoding of UCS2 decoding process.
With method accordingly, the embodiment of the invention also provides a kind of terminal, is used for as shown in Figure 5, comprising encoding with the character to be transmitted of note transmission:
Use the technology that the embodiment of the invention provides, effectively increase the max number of characters that a note can be carried, improve network resource utilization, reduced user's note rate.
As shown in Figure 6, also comprise in the terminal:
The coding mode selection unit is used for different coded systems selected in each character; Described coded system comprises: UCS2 coded system and ASC II coded system; In the UCS2 coded system, each character takies 16 bits; In the ASC II coded system, each character takies 7 bits.
The note head unit is positioned at the head of described note body, be used to deposit described mark bit map, and the length of described mark bit map is no more than 140 bits.
The decoding process selected cell, be used to receive a note after, according to judgement, adopt UCS2 coded system or ASC II coded system to decode to each flag bit in the described mark bit map.
Identifying unit is connected with a first threshold unit, is connected with flag bit unit 501, is used for when the number of characters of judging note UCS2 coded system to be sent during greater than a first threshold 501 work of notification flag bit location.
The first threshold unit is used for when note body total length is 1120bit, and the length that is used to deposit character in the described note body is 1120 bits-140 bit=980 bits; Calculate first threshold x, x represents the unicode character number of UCS2 coded system, satisfies:
16x+7y≤980
, and
x+y＝70
In the formula, y represents the character number of ASC II coded system; 70 expressions adopt the UCS2 coded system once to send 70 characters; Then, to the result of calculation round numbers of x as described first threshold.
Human and machine interface unit 503 is used to show the character of input, perhaps shows the character that needs the output that shows after the decoding.
Embodiments of the invention have following beneficial effect, the character number maximization that can send in the time of can realizing containing the unicode character in the note, the character number that can send in the time of can realizing containing the unicode character in note maximization.
Should be noted that above embodiment is only unrestricted in order to technical scheme of the present invention to be described, all parameter values can be according to the actual conditions adjustment, and in this rights protection scope.Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the spiritual scope of technical solution of the present invention, and it all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. short message coding method is used for it is characterized in that encoding with the character to be transmitted of note transmission:
Step 1 is carried out encoding operation to described character to be transmitted, obtains the note body, comprises in the described note body with the first kind character of first coded system coding and the second class character of encoding with second coded system; During bit number that the bit number that described first coded system need be used need use greater than described second coded system, the number of first kind character that adopts first coded system is smaller or equal to a first threshold;
Step 2 is provided with a mark bit map, and the coded system that character adopted in the flag bit in this mark bit map and the described note body is corresponding.
2. method according to claim 1 is characterized in that, described coded system comprises:
Universal character set 2 coded systems are described first coded system, and each character takies 16 bits;
American National Standard information permuted code coded system is described second coded system, and each character takies 7 bits.
3. method according to claim 2 is characterized in that, described mark bit map is positioned at the note head of described note, and a described flag bit comprises a bit;
When the length of described note was 1120 bits, the length of described mark bit map was 140 bits, and the length of described note body is 980 bits.
4. method according to claim 3 is characterized in that, also comprises:
The length of described note body is 1120 bits-140 bit=980 bits; Described first threshold x, the character number of universal character set 2 coded systems is adopted in expression, satisfies:
16x+7y≤980
, and
x+y＝70
In the formula, y represents to adopt the character number of American National Standard information permuted code coded system; And when all characters all adopt universal character set 2 coded systems in the described note, can deposit 70 characters in the described note body.
5. method according to claim 4 is characterized in that, in decode procedure, comprising:
According to judgement, adopt universal character set 2 decoding processes or American National Standard information permuted code decoding process to decode to corresponding characters to each flag bit in the described mark bit map.
6. a terminal is used for it is characterized in that encoding with the character to be transmitted of note transmission, comprising:
Coding unit is used for encoding operation carried out in described character to be transmitted, obtains the note body, comprises in the described note body with the first kind character of first coded system coding and the second class character of encoding with second coded system; During bit number that the bit number that described first coded system need be used need use greater than described second coded system, the number of first kind character that adopts first coded system is smaller or equal to a first threshold;
The flag bit unit is used to be provided with a mark bit map, and the coded system that character adopted in the flag bit in this mark bit map and the described note body is corresponding.
7. terminal according to claim 6 is characterized in that, also comprises:
The coding mode selection unit is used for different coded systems selected in each character; Described coded system comprises:
Universal character set 2 coded systems are described first coded system, and each character takies 16 bits;
American National Standard information permuted code coded system is described second coded system, and each character takies 7 bits.
8. terminal according to claim 7 is characterized in that,
The note head unit is positioned at the head position of described note, be used to deposit described mark bit map, and when the length of described note was 1120 bits, the length of described mark bit map is 140 bits.
9. terminal according to claim 8 is characterized in that, also comprises:
The decoding process selected cell, be used to receive a note after, according to judgement, adopt universal character set 2 decoding processes or American National Standard information permuted code decoding process to decode to corresponding characters to each flag bit in the described mark bit map.
10. terminal according to claim 8 is characterized in that, also comprises:
The first threshold unit is used for when the note total length is 1120 bits, and the length of described note body is 1120 bits-140 bit=980 bits; Described first threshold x, the character number of universal character set 2 coded systems is adopted in expression, satisfies:
16x+7y≤980
, and
x+y＝70
In the formula, y represents to adopt the character number of American National Standard information permuted code coded system; And when all characters all adopt universal character set 2 coded systems in the described note, can deposit 70 characters in the described note body.
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| CN101848349A (en) * | 2010-03-25 | 2010-09-29 | 中兴通讯股份有限公司 | Method, system and terminal for processing text messages in mobile multimedia broadcasting |
| CN101963957A (en) * | 2010-09-28 | 2011-02-02 | 北京握奇数据系统有限公司 | Method for implementing electronic dictionary on intelligent card and intelligent card |
| CN102158832A (en) * | 2011-04-22 | 2011-08-17 | 中兴通讯股份有限公司 | Method and device for self-adaptively coding short message |
| CN102170620A (en) * | 2011-05-09 | 2011-08-31 | 深圳市无线开锋科技有限公司 | Mobile terminal message instantly-displaying realizing method |
| WO2011144125A2 (en) * | 2011-05-30 | 2011-11-24 | 华为终端有限公司 | Method and device for short message processing |
| CN102665184A (en) * | 2012-04-24 | 2012-09-12 | 中兴通讯股份有限公司 | Coding method and device for increasing short message utilization rate |
| CN104184672A (en) * | 2014-09-10 | 2014-12-03 | 四川九洲电器集团有限责任公司 | Method and device of transmitting message |
| WO2015117407A1 (en) * | 2014-08-26 | 2015-08-13 | 中兴通讯股份有限公司 | Processing method and device for terminal information |
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| CN101848349A (en) * | 2010-03-25 | 2010-09-29 | 中兴通讯股份有限公司 | Method, system and terminal for processing text messages in mobile multimedia broadcasting |
| WO2011116554A1 (en) * | 2010-03-25 | 2011-09-29 | 中兴通讯股份有限公司 | Method, system and terminal for processing text information in mobile multimedia broadcast |
| CN101963957B (en) * | 2010-09-28 | 2012-08-22 | 北京握奇数据系统有限公司 | Method for implementing electronic dictionary on intelligent card and intelligent card |
| CN101963957A (en) * | 2010-09-28 | 2011-02-02 | 北京握奇数据系统有限公司 | Method for implementing electronic dictionary on intelligent card and intelligent card |
| CN102158832A (en) * | 2011-04-22 | 2011-08-17 | 中兴通讯股份有限公司 | Method and device for self-adaptively coding short message |
| CN102170620B (en) * | 2011-05-09 | 2014-04-09 | 深圳市无线开锋科技有限公司 | Mobile terminal message instantly-displaying realizing method |
| CN102170620A (en) * | 2011-05-09 | 2011-08-31 | 深圳市无线开锋科技有限公司 | Mobile terminal message instantly-displaying realizing method |
| WO2011144125A3 (en) * | 2011-05-30 | 2012-05-03 | 华为终端有限公司 | Method and device for short message processing |
| WO2011144125A2 (en) * | 2011-05-30 | 2011-11-24 | 华为终端有限公司 | Method and device for short message processing |
| CN102665184A (en) * | 2012-04-24 | 2012-09-12 | 中兴通讯股份有限公司 | Coding method and device for increasing short message utilization rate |
| CN102665184B (en) * | 2012-04-24 | 2014-12-10 | 中兴通讯股份有限公司 | Coding method and device for increasing short message utilization rate |
| CN105472107A (en) * | 2014-08-26 | 2016-04-06 | 中兴通讯股份有限公司 | Terminal information processing method and device |
| WO2015117407A1 (en) * | 2014-08-26 | 2015-08-13 | 中兴通讯股份有限公司 | Processing method and device for terminal information |
| CN104184672A (en) * | 2014-09-10 | 2014-12-03 | 四川九洲电器集团有限责任公司 | Method and device of transmitting message |
| WO2016112703A1 (en) * | 2015-01-15 | 2016-07-21 | 中兴通讯股份有限公司 | Short message transmission method, device, terminal and computer storage medium |
| CN105848116A (en) * | 2015-01-15 | 2016-08-10 | 中兴通讯股份有限公司 | Short message transmission method, device and equipment |
| CN105243168A (en) * | 2015-11-11 | 2016-01-13 | 中国建设银行股份有限公司 | Data migration method and system |
| CN105243168B (en) * | 2015-11-11 | 2019-08-30 | 中国建设银行股份有限公司 | A kind of data migration method and system |
| CN105634674A (en) * | 2016-01-12 | 2016-06-01 | 青岛海信移动通信技术股份有限公司 | Short message processing method and device |
| CN105630755A (en) * | 2016-01-22 | 2016-06-01 | 上海普适导航科技股份有限公司 | Source encoding and decoding methods and devices for expanding information quantity transmission of Beidou-satellite short message |
| CN105630755B (en) * | 2016-01-22 | 2018-08-14 | 上海普适导航科技股份有限公司 | Big-dipper satellite short message expands the source encoding and decoding method and device of information content transmission |
| CN108282256A (en) * | 2017-01-06 | 2018-07-13 | 中兴通讯股份有限公司 | Information processing method and terminal |
| CN108282256B (en) * | 2017-01-06 | 2022-05-13 | 中兴通讯股份有限公司 | Information processing method and terminal |
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Application publication date: 20100317 |