CN101090306A - Code and decode multiple method in service channel - Google Patents
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- CN101090306A CN101090306A CNA200610083952XA CN200610083952A CN101090306A CN 101090306 A CN101090306 A CN 101090306A CN A200610083952X A CNA200610083952X A CN A200610083952XA CN 200610083952 A CN200610083952 A CN 200610083952A CN 101090306 A CN101090306 A CN 101090306A
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Abstract
This invention discloses a coding multiplex and a decoding de-multiplex method in service channels, in which, the coding multiplex method includes: correction coding, adaptive re-transmitting, match of rate, process in segment, interlacing process and mapping of a physical channel, and a de-multiplex method includes: de-mapping of the physical channel, de-interlacing, segment and combination, correction and decoding and adaptive retransmitting and judgement.
Description
Technical field
The present invention relates to the method in a kind of Traffic Channel, relate in particular to code multiplexing and decoding Deplexing method in a kind of Traffic Channel, be used for mobile communication system.
Background technology
In mobile communication process, must carry out error correction coding to the data business and could in the mobile communication environment of complexity, obtain the acceptable performance, and common employed circuit-switched technology mainly is applicable to the business relevant with speech that transmit, this network exchange mode has significant limitation for data service.At first data communication has very strong sudden, Peak bit rate and mean bit rate differ bigger, if employing circuit-switched technology, if then can cause the significant wastage of resource by Peak bit rate distributor circuit bandwidth, if distribute bandwidth according to mean bit rate, then can cause losing in a large number of data.Next be with speech business by comparison, voice signal can have to a certain degree distortion and the real-time must be high, and data service does not have strict requirement to time delay, but need carry out the transmission of zero defect.Therefore need a kind of technical method solve the problems referred to above, and packet-switch technology is exactly a kind of exchanged form that proposes at the characteristics of data communication service.
Summary of the invention
Technical problem to be solved by this invention just provides code multiplexing and the decoding Deplexing method in a kind of Traffic Channel, retransmission technique obtains enough link gains by adopting fast, the data set phase method also can make organizing of data more flexible simultaneously, to avoid influencing because of curing data length the efficiency of transmission of mobile communication.
In order to solve the problems of the technologies described above, the invention provides code multiplexing and decoding Deplexing method in a kind of Traffic Channel, wherein, the coding multiplexing method in a kind of Traffic Channel comprises the steps:
(1) business datum of input is carried out error correction coding;
(2) business datum after the error correction coding is stored forwarding, and whether retransmit according to the feedback information decision of receiving terminal;
(3) according to physical frame data carried by data amount the data of storing after transmitting are carried out rate-matched;
(4) carry out fixed segments through the data after the rate-matched;
(5) data of gained after the fixed segments are carried out interleaving treatment;
(6) data map after will interweaving is in the physical channel frame.
Wherein, the described error correction coding of step (1) comprises the steps:
(1-1) to business datum additional cycles redundancy check bit;
(1-2) data after the additional check digit are carried out segmentation;
(1-3) data after the segmentation are encoded.
Wherein, the described repeating transmission of step (2) comprises, needs the instruction of retransmitting when receiving terminal returns, and then transmitting terminal continues to retransmit, and then stops to retransmit when transmitting terminal acknowledges receipt of the instruction that need not to retransmit.Wherein, further comprise, retransmit the mode that adopts part to retransmit or all retransmit and carry out the repeating transmission of data.
Wherein, described step (3) further comprises, goes up and does the punching compression in limited time and handle when data volume surpasses the physical frame carrying, carries out repeated and redundant when data volume in limited time on less than the physical frame carrying and handles.
Wherein, the decoding Deplexing method in a kind of Traffic Channel comprises the steps:
(A) physical channel data is extracted from physical channel;
(B) the described data that extract are carried out deinterleaving and handle, obtain each segment data;
(C) each segment data is made up;
(D) data that obtain after the combination are carried out error-correcting decoding;
(E) whether obtain correct raw information according to error correcting deocder and judge whether needs send the repeating transmission instruction.
Wherein, the described error-correcting decoding of step (D) comprises the steps:
(D1) redundant data that produces of deletion transmitting terminal or the cavity position of transmitting terminal carried out zero padding;
(D2) data result of repeatedly retransmitting that obtains after the above-mentioned processing is carried out soft merging;
(D3) data after being combined are deciphered.
Wherein, described step (D2) further comprises, the data that whole repeating transmission or part are retransmitted merge.
Wherein, described step (E) further comprises, sends the re-send request may instruction when decoding error, sends the instruction that acknowledges receipt of and need not to retransmit when decoding is correct.
Method of the present invention by Error-correcting Encoding and Decoding, data re-transmission and punching or repeat techniques, has promoted the Block Error Rate performance of block domain data, thereby has improved the throughput of link.
Description of drawings
Fig. 1 is the connection diagram according to the code multiplexing device of the described a kind of Traffic Channel of the embodiment of the invention;
Fig. 2 is the schematic flow sheet according to the coding multiplexing method in the described a kind of Traffic Channel of the embodiment of the invention;
Fig. 3 is the schematic flow sheet according to error correction/encoding method in the described coding multiplexing method of the embodiment of the invention;
Fig. 4 is the connection diagram according to the decoding Deplexing apparatus of the described a kind of Traffic Channel of the embodiment of the invention;
Fig. 5 is the schematic flow sheet according to the decoding Deplexing method in the described a kind of Traffic Channel of the embodiment of the invention;
Fig. 6 is the schematic flow sheet according to error-correcting decoding method in the described decoding Deplexing method of the embodiment of the invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
With reference to figure 1, the connection diagram for the code multiplexing device of the described a kind of Traffic Channel of the embodiment of the invention specifically comprises: error correcting encoder, self adaptation repeater, card punch, duplicator, sectionalizer, interleaver and physical channel mapper.
Business datum is at first carried out error correction coding by error correcting encoder, then via storage of self adaptation repeater and forwarding, if receiving terminal returns the instruction that needs repeating transmission, then the self adaptation repeater continues to retransmit, acknowledging receipt of the instruction that need not to retransmit up to the self adaptation repeater just stops to retransmit, and the memory space in the removing repeater, wherein, the mode that repeating transmission can adopt part to retransmit or all retransmit is carried out, data based data volume size through the self adaptation repeater selects card punch or duplicator that it is handled respectively, if data volume surpasses the physical frame carrying upper limit, then punched to compress and handled by card punch, if data volume is carried the upper limit less than physical frame, then carrying out repeated and redundant by duplicator handles, by sectionalizer the data of card punch or duplicator are carried out fixed segments again, send interleaver to carry out interleaving treatment then, the data after having interweaved are mapped in the physical channel frame via physical channel mapper.
With reference to figure 2, be the flow chart of the coding multiplexing method in the described a kind of Traffic Channel of the embodiment of the invention.Concrete steps are as follows:
Step 210: error correction coding.Error correcting encoder carries out error correction coding to the business datum of input.
Step 220: self adaptation is retransmitted.Whether the business datum of self adaptation repeater after to error correction coding stored forwarding, and retransmit according to the feedback information decision of receiving terminal.
Step 230: rate-matched.Data after card punch or duplicator are transmitted storage according to physical frame data carried by data amount are carried out rate-matched.
Step 240: segment processing.Sectionalizer is to carrying out fixed segments through the data after the rate-matched.
Step 250: interleaving treatment.Interleaver to fixed segments after the data of gained carry out interleaving treatment.
Step 260: physical channel mapping.Data map after physical channel mapper will interweave is in the physical channel frame.
Wherein, the described error correction coding process of step 210 is referring to Fig. 3.Concrete steps are as follows:
Step 310: cyclic check.
The cyclic check device is to business datum additional cycles redundancy check bit, and the figure place of cyclic check position is 24 in the present invention, also can be 16,12 or 8, and 24 generation formula as follows wherein:
g
CRC24(D)＝D
24+D
23+D
6+D
5+D+1。
Step 320: code block segmentation.
The data of code block segmentation device after to the additional cycles redundancy check bit are carried out segmentation, and to be fit to the use of coding module, because the present invention has adopted the Turbo coding, so section length is fixed as 5114.
Step 330: encoding process.
The data of encoder after to segmentation are encoded, and the present invention adopts the Turbo coded system, the error correction coding mode that also can adopt convolutional encoding or linear block codes etc. to be fit to, and the generator polynomial of Turbo coding adopts the method for 8 systems, and its multinomial is:
g
0(D)＝1+D
2+D
3；g
1(D)＝1+D+D
3。
Wherein, the described self adaptation of step 220 is retransmitted and is retransmitted according to feedback information, if receiving terminal returns the instruction that needs repeating transmission, then the self adaptation repeater continues to retransmit, acknowledge receipt of the instruction that need not to retransmit up to the self adaptation repeater, just stop to retransmit, and the memory space in the removing repeater, the mode that repeating transmission can adopt part to retransmit or all retransmit is carried out;
Wherein, the described interleaving treatment of step 250 can adopt block interleaving or circulation interweaving method, has adopted the method for block interleaving in the present embodiment, and the columns of block interleaving is 30 row, and line number is then according to the data flexible configuration of importing.
With reference to figure 4, the connection diagram for the decoding Deplexing apparatus of the described a kind of Traffic Channel of the embodiment of the invention specifically comprises: physical channel de-mapping device, deinterleaver, segmentation combiner, error correcting deocder, self adaptation are retransmitted decision device.
The physical channel de-mapping device at first extracts physical channel data from physical channel, then the described data that extract being carried out deinterleaving via deinterleaver handles, obtain each segment data, deliver to the segmentation combiner then with each segmentation combination, send error correcting deocder to decipher again, if decoding error is then retransmitted decision device by self adaptation and sent re-send request may, if decoding is correct, then retransmits decision device and send the instruction that acknowledges receipt of and need not to retransmit by self adaptation.
With reference to figure 5, be the flow chart of the decoding Deplexing method in the described a kind of Traffic Channel of the embodiment of the invention.Concrete steps are as follows:
Step 510: physical channel is separated mapping.The physical channel de-mapping device extracts physical channel data from physical channel.
Step 520: deinterleaving is handled.Deinterleaver carries out deinterleaving to the described data that extract to be handled, and obtains each segment data.
Step 530: segmentation combination.The segmentation combiner makes up each segment data.
Step 540: error-correcting decoding.Error correcting deocder carries out error-correcting decoding to the data that obtain after making up.
Step 550: self adaptation is retransmitted and is judged.Whether self adaptation repeating transmission decision device obtains correct raw information according to error correcting deocder is judged whether needs send the repeating transmission instruction.
Wherein, the described error-correcting decoding process of step 540 is referring to Fig. 6.Concrete steps are as follows:
Step 610: punching or zero padding are handled.
Card punch is corresponding with the position of duplicator in the code multiplexing device, can directly take the mode with information deletion on the correspondence position, and the redundancy that also can utilize this duplicator to produce improves processing gain, as the mode that simply duplicate message is merged; The zero padding device is corresponding with the position of card punch in the code multiplexing device, and the cavity position that this card punch is caused carries out zero padding.
Step 620: self adaptation is retransmitted and is merged.
Self adaptation is retransmitted the data result of repeatedly retransmitting that obtains after combiner is handled above-mentioned steps and is carried out soft merging, and combiner can be handled simple merging of all retransmitting, the merging of also can the processing section retransmitting.
Step 630: decoding is handled.Data after decoder is combined are deciphered.What adopt among the present invention is the Turbo decoded mode.
By above code multiplexing device and decoding Deplexing apparatus, Error-correcting Encoding and Decoding has solved mobile data services and obtained the acceptable performance in the mobile communication environment of complexity, adopting fast, retransmission technique can be used for obtaining enough link gains, the method of data set section also can make organizing of data more flexible flexibly simultaneously, avoids the immobilization data length to influence the mobile communication efficiency of transmission.
Claims (9)
1. the coding multiplexing method in the Traffic Channel is characterized in that, comprises the steps:
(1) business datum of input is carried out error correction coding;
(2) business datum after the error correction coding is stored forwarding, and whether retransmit according to the feedback information decision of receiving terminal;
(3) according to physical frame data carried by data amount the data of storing after transmitting are carried out rate-matched;
(4) carry out fixed segments through the data after the rate-matched;
(5) data of gained after the fixed segments are carried out interleaving treatment;
(6) data map after will interweaving is in the physical channel frame.
2. the method for claim 1 is characterized in that, the described error correction coding of step (1) comprises the steps:
(1-1) to business datum additional cycles redundancy check bit;
(1-2) data after the additional check digit are carried out segmentation;
(1-3) data after the segmentation are encoded.
3. the method for claim 1 is characterized in that, the described repeating transmission of step (2) comprises, needs the instruction of retransmitting when receiving terminal returns, and then transmitting terminal continues to retransmit, and then stops to retransmit when transmitting terminal acknowledges receipt of the instruction that need not to retransmit.
4. method as claimed in claim 3 is characterized in that, further comprises, retransmits the mode that adopts part to retransmit or all retransmit and carries out the repeating transmission of data.
5. the method for claim 1 is characterized in that, described step (3) further comprises, goes up and does the punching compression in limited time and handle when data volume surpasses the physical frame carrying, carries out repeated and redundant when data volume in limited time on less than the physical frame carrying and handles.
6. the decoding Deplexing method in the Traffic Channel is characterized in that, comprises the steps:
(A) physical channel data is extracted from physical channel;
(B) the described data that extract are carried out deinterleaving and handle, obtain each segment data;
(C) each segment data is made up;
(D) data that obtain after the combination are carried out error-correcting decoding;
(E) whether obtain correct raw information according to error correcting deocder and judge whether needs send the repeating transmission instruction.
7. method as claimed in claim 6 is characterized in that, the described error-correcting decoding of step (D) comprises the steps:
(D1) redundant data that produces of deletion transmitting terminal or the cavity position of transmitting terminal carried out zero padding;
(D2) data result of repeatedly retransmitting that obtains after the above-mentioned processing is carried out soft merging;
(D3) data after being combined are deciphered.
8. method as claimed in claim 7 is characterized in that, described step (D2) further comprises, the data that whole repeating transmission or part are retransmitted merge.
9. method as claimed in claim 6 is characterized in that, described step (E) further comprises, sends the re-send request may instruction when decoding error, sends the instruction that acknowledges receipt of and need not to retransmit when decoding is correct.
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| CNA200610083952XA CN101090306A (en) | 2006-06-12 | 2006-06-12 | Code and decode multiple method in service channel |
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| CN101986584A (en) * | 2010-10-22 | 2011-03-16 | 中国科学院计算技术研究所 | Rate de-matching device and method in 3GPP LTE |
| CN101562498B (en) * | 2008-04-18 | 2012-04-25 | 中国移动通信集团公司 | Encoding and decoding transmission method of multi-join data stream cracking as well as device and system thereof |
| CN101567718B (en) * | 2008-04-21 | 2013-02-27 | 中兴通讯股份有限公司 | Method and device used for realizing demultiplexing of transmission signal-path data of receiving direction in WCDMA |
| CN101499885B (en) * | 2008-02-03 | 2013-02-27 | 中兴通讯股份有限公司 | Uplink/downlink retransmission method and system based on wireless communication time division duplex system |
| WO2014063457A1 (en) * | 2012-10-22 | 2014-05-01 | Huawei Technologies Co., Ltd. | Systems and methods for data representation and transportation |
| CN108134654A (en) * | 2017-12-25 | 2018-06-08 | 四川九洲空管科技有限责任公司 | A kind of method and device for improving ultra-long data report transmission reliability |
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| WO2018196509A1 (en) * | 2017-04-27 | 2018-11-01 | 深圳超级数据链技术有限公司 | Processing method, device and system for overlap multiplexing system |
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| CN101499885B (en) * | 2008-02-03 | 2013-02-27 | 中兴通讯股份有限公司 | Uplink/downlink retransmission method and system based on wireless communication time division duplex system |
| CN101562498B (en) * | 2008-04-18 | 2012-04-25 | 中国移动通信集团公司 | Encoding and decoding transmission method of multi-join data stream cracking as well as device and system thereof |
| CN101567718B (en) * | 2008-04-21 | 2013-02-27 | 中兴通讯股份有限公司 | Method and device used for realizing demultiplexing of transmission signal-path data of receiving direction in WCDMA |
| CN101986584A (en) * | 2010-10-22 | 2011-03-16 | 中国科学院计算技术研究所 | Rate de-matching device and method in 3GPP LTE |
| WO2014063457A1 (en) * | 2012-10-22 | 2014-05-01 | Huawei Technologies Co., Ltd. | Systems and methods for data representation and transportation |
| CN104737518A (en) * | 2012-10-22 | 2015-06-24 | 华为技术有限公司 | Systems and methods for data representation and transportation |
| US9894421B2 (en) | 2012-10-22 | 2018-02-13 | Huawei Technologies Co., Ltd. | Systems and methods for data representation and transportation |
| CN104737518B (en) * | 2012-10-22 | 2018-11-16 | 华为技术有限公司 | The system and method for indicating and transmitting for data |
| CN108352924A (en) * | 2015-10-28 | 2018-07-31 | 华为技术有限公司 | A kind of data processing method and device |
| CN108352924B (en) * | 2015-10-28 | 2020-06-26 | 华为技术有限公司 | Data processing method and device |
| US10778253B2 (en) | 2015-10-28 | 2020-09-15 | Huawei Technologies Co., Ltd. | Data processing method and apparatus |
| US11342940B2 (en) | 2015-10-28 | 2022-05-24 | Huawei Technologies Co., Ltd. | Data processing method and apparatus |
| WO2018196509A1 (en) * | 2017-04-27 | 2018-11-01 | 深圳超级数据链技术有限公司 | Processing method, device and system for overlap multiplexing system |
| US11082147B2 (en) | 2017-04-27 | 2021-08-03 | Shen Zhen Kuang-Chi Hezhong Technology Ltd | Processing method, device and system for overlap multiplexing system |
| CN108134654A (en) * | 2017-12-25 | 2018-06-08 | 四川九洲空管科技有限责任公司 | A kind of method and device for improving ultra-long data report transmission reliability |
| CN111245446A (en) * | 2020-04-26 | 2020-06-05 | 杭州优智联科技有限公司 | Grouping-based data convolution coding and decoding method in UWB system |
| CN112994841A (en) * | 2021-02-09 | 2021-06-18 | 中国人民解放军战略支援部队信息工程大学 | Data processing method, device and equipment based on instruction coding |
| CN112994841B (en) * | 2021-02-09 | 2022-05-27 | 中国人民解放军战略支援部队信息工程大学 | Data processing method, device and equipment based on instruction coding |
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