CN101335732A - Symbol interleaving mode selection method, apparatus and transmitter implementing symbol interleaving - Google Patents
Symbol interleaving mode selection method, apparatus and transmitter implementing symbol interleaving Download PDFInfo
- Publication number
- CN101335732A CN101335732A CNA2007101260453A CN200710126045A CN101335732A CN 101335732 A CN101335732 A CN 101335732A CN A2007101260453 A CNA2007101260453 A CN A2007101260453A CN 200710126045 A CN200710126045 A CN 200710126045A CN 101335732 A CN101335732 A CN 101335732A
- Authority
- CN
- China
- Prior art keywords
- symbol
- interleaving mode
- symbol interleaving
- channel quality
- channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Error Detection And Correction (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a method for selecting symbol interleaving modes. The method comprises the steps that: a transmission end acquires channel quality information and selects a symbol interleaving mode by utilizing the channel quality information. The invention also discloses a device for realizing symbol interleaving mode selection, which comprises an information acquiring module and a symbol interleaving mode selecting module. The invention can improve the throughput.
Description
Technical field
The present invention relates to the communications field, particularly a kind of system of selection and device that is applicable to symbol interleaving mode in the multicarrier system, and the transmitter of realizing symbol interleaving.
Background technology
In communication system; because the complexity of channel; make the level of the signal that is received that very big variation be arranged in time as the multipath fading that causes owing to reflection from building etc.; the communications mistake can be concentrated with the form of burst usually and occur; thereby at receiving terminal, error code can come across in the signal that receives with conitnuous forms.For fear of the information distortion that continuous error code causes, adopt interleaving technology usually, promptly by changing the transmission sequence of signal, the error code that recurs is decentralized, facilitate the use other technology, correct the error code that disperses, thereby improve the error correcting capability of communication system such as error correction coding.From in essence, what is called interweaves, and a kind ofly exactly changes message structure to greatest extent and does not change the data processing method of the information content, thereby make decentralized to greatest extent, the randomization of mistake that burst is concentrated in the Channel Transmission process.
Interweaving, it is multiple to comprise, as Bit Interleave, and symbol interleaving etc., wherein, symbol interleaving refers to the process that the symbol sebolic addressing after the modulation is resequenced.In multi-carrier communications systems, each symbol in the symbol sebolic addressing is mapped to a corresponding subcarrier in proper order and is uploaded defeatedly, thereby interweaves when system's created symbol, then by with the symbol sebolic addressing rearrangement, can change the mapping relations of each symbol and subcarrier.The corresponding a kind of symbol interleaving mode of rearrangement order of each symbol sebolic addressing.The normal symbol interleaver of introducing reindexing and subcarrier mapping relations in multi-carrier communications systems, and by selecting symbol interleaving mode, the decline of contrary frequency selectivity.
Such as, supporting to mix automatic repeat requests (HARQ, Hybrid automatic repeatrequest) OFDM (OFDM, Orthogonal Frequency DivisionMultiplexing) in the system, because there is the decline selectivity of frequency in ofdm system, different subcarriers can have different channel gains, the symbol that sends on the subcarrier with high channel gain has accepting state preferably, and the symbol that sends on the subcarrier of low channel gain has relatively poor accepting state.Though retransmitting, the mistake bag that HARQ supports to improve signal to noise ratio (SNR by the result of twice transmission before and after merging at receiving terminal, signal noise ratio), but, when retransmitting, transmission last time wrong symbol occurs and still is mapped on the subcarrier with low channel gain, thereby may occur error of transmission once more.For overcoming the above problems, can in this system, introduce the symbol interleaver of reindexing and subcarrier mapping relations, and according to number of retransmissions selection symbol interleaving mode, the theory structure of its transmitting terminal as shown in Figure 1, Fig. 1 is the transmitter principle structural representation of created symbol interleaver in the prior art.
Below in conjunction with Fig. 1, specify the method for in multi-carrier communications systems, selecting symbol interleaving mode at present, referring to Fig. 1, the concrete course of work of transmitting terminal is as follows:
At first, undertaken as error correction codings such as convolution code, cascaded codes, in bit data flow to be sent, add redundant bit information, so that can correct error code in the redundant bit information that the receiving terminal utilization is added by encoder 110;
Then, in bit interleaver 120, be one group with 126 bits usually, successively the bit data flow behind each group coding is carried out Bit Interleave, promptly the bit data flow in each group is being carried out order rearrangement;
Then, in modulation module 130, will be mapped to through the bit data flow behind the Bit Interleave on the various constellations point of planisphere, form the symbol sebolic addressing of modulation, be constellation mapping,, then can modulate a symbol by 4 bits such as the modulation of 16QAM constellation;
Symbol sebolic addressing after the modulation carries out buffer memory by buffer 170, and buffer 170 is used to support the system that wrong bag retransmits, and when transmitting terminal is received the affirmation message ACK that receiving terminal sends, empties buffer 170; When the non-acknowledge message NACK that receives that receiving terminal sends, the cache contents that keeps in the buffer 170 is used for follow-up HARQ retransmits, for the system that does not support that wrong bag retransmits, transmitter does not comprise buffer 170;
Then, in symbol interleaver 140, the symbol sebolic addressing after the constellation mapping is carried out symbol interleaving.Usually, the size of the data block of symbol interleaver single treatment is to determine according to effective carrier number of ofdm system, such as, effective carrier number of ofdm system is 1512, so, the data block of symbol interleaver single treatment comprises 1512 symbols, that is to say, symbol interleaver is unit with the data block, successively wherein symbol sebolic addressing is carried out order rearrangement.The symbol interleaving mode that symbol interleaver 140 is adopted, the rearrangement of symbol sebolic addressing are just realized by symbol interleaving mode selector 160 in proper order.In symbol interleaving mode selector 160, the selection of symbol interleaving mode is according to number of retransmissions, promptly determine according to the confirmed/non-confirmed information (ACK/NACK) of receiving terminal feedback, be specially: when HARQ transmits for the first time, transmitting terminal is from predefined symbol interleaving, select a kind of symbol interleaving mode that the symbol sebolic addressing in the data block is carried out symbol interleaving at random, if receiving terminal receives correct, then to transmitting terminal feeding back ACK information, and use identical symbol interleaving mode to carry out symbol interleaving to next data block, if receiving terminal feedback nack message, then represent bust this, transmitting terminal need change current symbol interleaving mode, and transmitting terminal is selected a kind of as the current sign interleaving mode from remaining symbol interleaving mode more arbitrarily, when HARQ transmits for the second time, once more former data block is carried out symbol interleaving, and when receiving terminal feedback nack message, once more the reindexing interleaving mode, by that analogy, can correctly receive up to receiving terminal.
At last, in OFDM sending module 150, modulation will be mapped on the different subcarriers through the symbol sebolic addressing behind the symbol interleaving successively through OFDM, and launch.Corresponding subcarrier of common symbol, thereby homogeneous can be carried out the data block of symbol interleaving is mapped on each subcarrier simultaneously and launches.
By above analysis, as can be seen, symbol interleaving mode is just according to selecting at random from the ACK/NACK information of receiving terminal at present, that is to say, transmitting terminal can only be according to the reception result of receiving terminal to the transmission data, whether determine needs the reindexing interleaving mode, can not directly determine suitable symbol interleaving mode according to reception result, and can only determine by repeatedly retransmitting the different symbol interleaving mode of test, thereby select the symbol interweaving method at present, need repeatedly data retransmission, thereby influence throughput of system, transmission performance is relatively poor.
Summary of the invention
In view of this, the embodiment of the invention is to provide a kind of system of selection of symbol interleaving mode, and this method can improve throughput of system.
The embodiment of the invention is to provide a kind of device of realizing that symbol interleaving mode is selected, and this device can improve throughput of system.
The embodiment of the invention is to provide a kind of transmitter of realizing symbol interleaving, and this transmitter can improve throughput of system.
For reaching above-mentioned first purpose, the technical scheme of the embodiment of the invention specifically is achieved in that
A kind of system of selection of symbol interleaving mode, this method comprises: transmitting terminal obtains channel quality information; Transmitting terminal utilizes described channel quality information, selects symbol interleaving mode.
For reaching above-mentioned second purpose, the technical scheme of the embodiment of the invention specifically is achieved in that
A kind of device of realizing that symbol interleaving mode is selected, this device comprises: information acquisition module and symbol interleaving mode are selected module;
Described channel information acquisition module is used to obtain channel quality information, described channel quality information is sent to symbol interleaving mode select module;
Described symbol interleaving mode is selected module, is used to utilize described channel quality information, selects symbol interleaving mode.
For reaching above-mentioned the 3rd purpose, the technical scheme of the embodiment of the invention specifically is achieved in that
A kind of transmitter of realizing symbol interleaving, this transmitter comprises: symbol interleaving selector and symbol interleaver;
Described symbol interleaving selector is used to obtain channel quality information; Utilize described channel quality information, select symbol interleaving mode, the described symbol interleaving mode of selecting is sent to symbol interleaver;
Described symbol interleaver is used for carrying out symbol interleaving according to described symbol interleaving mode.
The device that the system of selection of a kind of symbol interleaving mode that the embodiment of the invention provides, realization symbol interleaving mode are selected, and the transmitter of realizing symbol interleaving, select symbol interleaving mode by utilizing channel quality information, the different channels quality that can have according to each channel, directly select more excellent symbol interleaving mode, thereby the reduction error of transmission, the throughput of raising system.
Description of drawings
Fig. 1 is the transmitter principle structural representation of created symbol interleaver in the prior art;
Fig. 2 is the transmitter principle structural representation of created symbol interleaver in the embodiment of the invention;
Fig. 3 is the structural representation of the symbol interleaving mode selector in the transmitter shown in Fig. 2;
Fig. 4 is the system of selection schematic flow sheet of symbol interleaving mode in the embodiment of the invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
The embodiment of the invention is considered channel condition when selecting symbol interleaving mode.Be specially: transmitting terminal obtains channel quality information; The channel quality information that the transmitting terminal utilization is obtained is selected better symbol interleaving mode, thereby reduces error of transmission and improve the throughput of system.
Only the system of selection of the symbol interleaving mode that provides in the embodiment of the invention is described and realizes the transmitter that symbol interleaving mode is selected below with the multicarrier system of not supporting wrong bag to retransmit.
Because the embodiment of the invention is selected symbol interleaving mode according to channel quality information, and channel quality information is the channel quality indication (CQI of receiving terminal each subband of feeding back to transmitting terminal in the present embodiment, Channel Quality Indication) information, thereby, the CQI according to each subband of the input of symbol interleaving mode selector 160 shown in being among Fig. 2.Here, subband comprises the experimental process carrier wave, and subband CQI information is meant the average value information of experimental process carrier wave CQI.
Certainly present embodiment also can be according to other information from the sign channel quality of receiving terminal, and the SNR metrical information that feeds back to the subcarrier of transmitting terminal or subband such as, receiving terminal waits selects symbol interleaving mode, perhaps the channel quality information of other type.
Fig. 3 is a symbol interleaving mode selector structure schematic diagram in the embodiment of the invention.Symbol interleaving mode selector 360 is input to symbol interleaver 340 with the call number of the symbol interleaving mode correspondence selected in the present embodiment, as shown in Figure 3, symbol interleaver 340 has N symbol interleaving mode that sets in advance, and each symbol interleaving mode has a symbol interleaving mode call number.Symbol interleaver 340 is according to symbol interleaving mode call number triggering selection switch, the corresponding symbol interleaving mode of gating.For transmitting terminal and receiving terminal, symbol interleaving mode and corresponding symbol interleaving mode call number thereof all are known.
As shown in Figure 3, the symbol interleaving mode selector of the realization embodiment of the invention comprises: information acquisition module 380 and symbol interleaving mode are selected module 390;
Symbol interleaving mode is selected module 390, is used to the channel quality letter of self information acquisition module 380, selects symbol interleaving mode.
Symbol interleaving mode selects module 390 to comprise: preset unit 391, symbol data are reset unit 392 and symbol interleaving mode determining unit 393;
Symbol data is reset unit 392, be used to the channel quality information of self information acquisition module 380, according to the channel quality quality each symbol data that is mapped to each channel is carried out order rearrangement, obtain symbol data rearrangement order, described symbol data rearrangement is sent to symbol interleaving mode determining unit 393 in proper order;
Symbol interleaving mode determining unit 393, the corresponding relation that is used for the symbol interleaving mode that sets in advance according to described preset unit 391 and symbol data rearrangement order, by the symbol data rearrangement order of resetting unit 392 from symbol data, determine a kind of symbol interleaving mode, as the symbol interleaving mode of selecting.
Symbol data is reset unit 392 and is comprised: channel ordering subelement 394 and mapping subelement 395;
In the present embodiment, set in advance the directly corresponding a kind of symbol data rearrangement order of symbol interleaving mode, then shine upon subelement 372,, set up the mapping relations of channel quality order of quality and symbol data rearrangement order according to the mapping policy of channel that sets in advance and symbol data.In the present embodiment, a symbol data is a plurality of symbols that are mapped on the subband.
If present embodiment, the symbol interleaving mode that sets in advance corresponds to the permutation function of a symbol interleaving, and symbol interleaving mode determining unit 393 comprises: function produces subelement; Function produces subelement, is used for the symbol sebolic addressing after resetting be multiply by the transposed sequence of resetting preceding symbol sebolic addressing, and correspondence obtains the symbol interleaving permutation function.
Symbol interleaving mode selector in the present embodiment can also comprise: indicating module 370, indicating module 370 is according to the symbol interleaving mode call number of symbol interleaving mode selector 390 inputs, to the selected symbol interleaving mode call number of receiver indication transmitting terminal.Because the corresponding relation of receiving terminal known symbol interleaving index number and symbol interleaving mode, thereby, can carry out corresponding symbolic solution and interweave according to the symbol interleaving mode call number.Certainly present embodiment except that call number, also can adopt the method for other expression symbol interleaving mode.
Fig. 4 is the system of selection schematic flow sheet of symbol interleaving mode in the embodiment of the invention, specifically may further comprise the steps:
Step 401: transmitting terminal sends data block.
In the present embodiment, the data block that transmitting terminal sends is the symbol sebolic addressing after the constellation mapping, for reducing the feedback quantity of receiving terminal, carrier wave with OFDM is divided into several subbands in advance, each subband comprises the experimental process carrier wave, because symbol of each subcarrier transmission, thereby each subband can transmit the symbol data that is made of a plurality of symbols.For example, the ofdm system of present embodiment is divided into four subbands, then the data block at present embodiment correspondingly is divided into four symbol datas, respectively corresponding these four subbands, be symbol data 1, symbol data 2, symbol data 3 and symbol data 4 are mapped to subband 1 successively, subband 2, subband 3 and subband 4 transmit.
Present embodiment is for ease of explanation, suppose that transmitting terminal is when sending first data block, do not carry out symbol interleaving, but the symbol data that directly constellation mapping is obtained is mapped on the subband respectively, launch, can certainly from predefined symbol interleaving mode, select arbitrarily a kind of carry out symbol interleaving after, symbol data is mapped to respectively on the subband, launch.
Step 402: the channel quality information that obtains the receiving terminal feedback.
In the present embodiment, the channel quality information that transmitting terminal obtains is the subband CQI information that receiving terminal feeds back to transmitting terminal, that is to say that receiving terminal can feed back the channel quality information of each channel according to the situations such as accepting state of data block to transmitting terminal after the data block that receives from transmitting terminal.Channel in the present embodiment is assumed to subband.
Certainly, channel in the present embodiment also can be subcarrier and other channel of multicarrier system, simultaneously, transmitting terminal also can obtain the channel quality information of other type in the present embodiment, such as, receiving terminal feeds back to the subcarrier SNR metrical information of transmitting terminal, the channel quality information that extracts from the memory block etc.
Step 403:, each channel is sorted according to the channel quality quality according to channel quality information.
In the present embodiment, suppose receiving terminal feedback subband 1, subband 2, the CQI of subband 3 and subband 4 is followed successively by CQI1, CQI2, CQI3 and CQI4, and hypothesis channel quality CQI2＞CQI1＞CQI4＞CQI3, then obtaining the corresponding channel quality order of quality thus is: subband 2＞subband 1＞subband 4＞subband 3, when symbol sebolic addressing after the constellation mapping of direct transmission, symbol data 2 can transmission in subband 2, because the channel quality of subband 2 is best, correspondingly, the accepting state of symbol data 2 is also best; 3 of symbol datas can transmit in subband 3, because the channel quality of subband 3 is the worst, correspondingly, the accepting state of symbol data 2 is also the worst.
Step 404: the mapping relations of setting up channel quality order of quality and symbol data rearrangement order.
The present embodiment symbol interleaving mode sets in advance and is a kind of symbol data rearrangement order, and mapping policy according to channel that sets in advance and symbol data, set up the mapping relations of channel quality order of quality and symbol data rearrangement order, the channel that present embodiment adopts and the mapping policy of symbol data are: the subband of accepting state difference is mapped to the good subband of channel conditions, and the subband that accepting state is good is mapped to the relatively poor subband of channel conditions.
Present embodiment is mapped to the strategy of the relatively poor subband of channel conditions according to the symbol data that accepting state is good, the symbol data 2 that accepting state is best is mapped to the poorest subband of channel quality 3, the symbol data 3 that accepting state is the worst is mapped to the best subband of channel quality 2, accepting state time good symbol data 1 is mapped to the subband 4 of channel quality time difference, symbol data 1 is mapped to subband 4, for this reason, need be with symbol data 2 and symbol data 3 exchange sequences, and with symbol data 1 and symbol data 4 exchange sequences.
According to above symbol data exchange sequence, can access symbol data rearrangement order: symbol data 4, symbol data 3, symbol data 2 and symbol data 1, soon be mapped to subband 1 successively, subband 2, symbol data 1 on subband 3 and the subband 4, symbol data 2, symbol data 3 and symbol data 4, rearrangement is symbol data 4 in proper order, symbol data 3, symbol data 2 and symbol data 1, thereby set up the mapping relations of channel quality order of quality and symbol data rearrangement order: the channel quality order of quality is: during subband 2＞subband 1＞subband 4＞subband 3, the symbol data rearrangement is symbol data 4 in proper order, symbol data 3, symbol data 2 and symbol data 1.
Certainly, present embodiment also can be pre-defined the corresponding permutation function of symbol interleaving mode, so-called symbol interleaving permutation function, exactly the symbol sebolic addressing before the symbol interleaving is changed into the procedure function of the symbol sebolic addressing behind the symbol interleaving, such as the symbol sebolic addressing before the symbol interleaving is A, symbol sebolic addressing behind the symbol interleaving is B, and permutation function is expressed as X, and the then symbol interleaving process can be expressed as AX=B.Thereby, after the mapping relations of setting up channel quality order of quality and symbol data rearrangement order, also the sequence with symbol data rearrangement order to be multiply by the contrary of symbol sebolic addressing with former order, i.e. X=BA
-1, correspondence obtains the symbol interleaving permutation function.
Step 405:, select symbol interleaving mode according to the mapping relations of channel quality order of quality and symbol data rearrangement order.
In the present embodiment, adopt call number to represent symbol interleaving mode, according to the mapping relations that obtain in the step 404, from a plurality of symbol interleaving modes that set in advance, select one corresponding to symbol data rearrangement sequence number data 4, symbol data 3, the symbol interleaving mode call number of symbol data 2 and symbol data 1.So far, transmitting terminal is finished the selection course to symbol interleaving mode.
This method also further comprises step 406: the symbol interleaving mode that transmitting terminal is selected to the receiving terminal indication.
In the present embodiment, send the symbol interleaving mode call number to receiving terminal by transmitting terminal, the symbol interleaving mode that indication receiving terminal transmitting terminal adopts, receiving terminal can select corresponding symbol interleaving mode to separate symbol interleaving according to this call number.
Certainly, present embodiment also can adopt predefined other indication information of receiving terminal and transmitting terminal, indicates the symbol interleaving mode that transmitting terminal adopts.
The transmitter of the system of selection of a kind of symbol interleaving mode that the embodiment of the invention provides and realization symbol interleaving mode is not only applicable to not support the wrong system that retransmits of wrapping, and is applicable to the system that supports the re-transmission of mistake bag yet.When the system that retransmits was wrapped for support is wrong by the system in the present embodiment, theory structure schematic diagram and Fig. 2 of its transmitter were similar, and just one of increase is used for the buffer that mistake retransmits before symbol interleaver.Its transmitter architecture of realizing symbol interleaving mode as shown in Figure 3, the system of selection of its symbol interleaving mode is as shown in Figure 4.
Present embodiment is applied to not support wrong retransmission system, during as non-HARQ system transmissions, channel quality indication (CQI) information according to the receiving terminal feedback is selected suitable symbol interleaving mode, make the sign map of accepting state difference on channel quality good subcarrier or subband, thereby improved the throughput of system.
When the embodiment of the invention is applied to transmit in the wrong retransmission systems of support such as HARQ, ARQ, in each transmission course, the channel quality indication (CQI) information that makes full use of the receiving terminal feedback is selected suitable symbol interleaving mode, make the sign map of accepting state difference on channel quality good subcarrier or subband, merge gain thereby can improve, reduce the throughput that number of retransmissions improves system.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is preferred embodiment of the present invention; be not to be used to limit protection scope of the present invention; within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1, a kind of system of selection of symbol interleaving mode is characterized in that, this method comprises: transmitting terminal obtains channel quality information; Transmitting terminal utilizes described channel quality information, selects symbol interleaving mode.
2, the system of selection of symbol interleaving mode according to claim 1 is characterized in that, described selection symbol interleaving mode comprises:
According to channel quality information each symbol data that is mapped to each channel is carried out order rearrangement, obtain symbol data rearrangement order;
According to the corresponding relation of symbol interleaving mode that sets in advance and symbol data rearrangement order, determine a kind of symbol interleaving mode in proper order by described symbol data rearrangement, as the symbol interleaving mode of selecting.
3, the system of selection of symbol interleaving mode according to claim 2 is characterized in that, describedly according to channel quality information each symbol data that is mapped to each channel is carried out order rearrangement, obtains the symbol data rearrangement and comprises in proper order:
According to described channel quality information, each channel is sorted according to the channel quality quality, obtain the channel quality order of quality; According to the mapping policy of channel that sets in advance and symbol data, described each symbol data is mapped on described each channel, correspondence obtains symbol data rearrangement order.
4, the system of selection of symbol interleaving mode according to claim 3 is characterized in that, described symbol interleaving mode is the permutation function of a symbol interleaving;
Describedly determine a kind of symbol interleaving mode in proper order by the symbol data rearrangement and comprise: the transposed sequence of symbol sebolic addressing before the symbol sebolic addressing after will resetting multiply by and resets, the permutation function of the symbol interleaving that correspondence obtains.
According to the system of selection of claim 3 or 4 described symbol interleaving modes, it is characterized in that 5, the mapping policy of described channel that sets in advance and symbol data comprises: the symbol data that accepting state is excellent is mapped to the strategy on the channel of bad channel quality;
Described correspondence obtains the symbol data rearrangement and comprises in proper order: with the accepting state order of quality of described channel quality order of quality as each symbol data; After the symbol data that accepting state is excellent is mapped on the bad channel of channel quality, needing to obtain the symbol data of exchange sequence, correspondence obtains the symbol data rearrangement order after the respective symbol exchanges data.
6, the system of selection of symbol interleaving mode according to claim 1 is characterized in that, this method further comprises: transmitting terminal is indicated described symbol interleaving mode to receiving terminal.
According to the system of selection of claim 1,2,3,4 or 6 described symbol interleaving modes, it is characterized in that 7, described channel quality information comprises: the information that characterizes the channel quality of each channel.
8, the system of selection of symbol interleaving mode according to claim 7, it is characterized in that, described transmitting terminal obtains channel quality information and comprises: reception is perhaps extracted each subcarrier of sign of storage in advance or the information of sub-band channel quality from the information of the channel quality of each channel of sign of receiving terminal.
9, the system of selection of symbol interleaving mode according to claim 8, it is characterized in that the information of described sign channel quality comprises: the channel quality indicator (CQI) information of each subcarrier or each subband or the signal to noise ratio snr metrical information of each subcarrier or each subband.
10, a kind of device of realizing that symbol interleaving mode is selected, it is characterized in that this device comprises: information acquisition module and symbol interleaving mode are selected module;
Described information acquisition module is used to obtain channel quality information, described channel quality information is sent to symbol interleaving mode select module;
Described symbol interleaving mode is selected module, is used to utilize described channel quality information, selects symbol interleaving mode.
11, device according to claim 10 is characterized in that, described symbol interleaving mode selects module to comprise: preset unit, symbol data are reset unit and symbol interleaving mode determining unit;
Described preset unit is used to store the symbol interleaving mode and the symbol data rearrangement corresponding relation in proper order that set in advance;
Described symbol data is reset the unit, be used to be used to the described channel quality information of self information acquisition module, according to the channel quality quality each symbol data that is mapped to each channel is carried out order rearrangement, obtain symbol data rearrangement order, described symbol data rearrangement is sent to the symbol interleaving mode determining unit in proper order;
Described symbol interleaving mode determining unit, the corresponding relation that is used for the symbol interleaving mode that sets in advance according to described preset unit and symbol data rearrangement order, determine a kind of symbol interleaving mode in proper order by described symbol data rearrangement, as the symbol interleaving mode of selecting.
12, device according to claim 11 is characterized in that, described symbol data is reset the unit and comprised: channel ordering subelement and mapping subelement;
Described channel ordering subelement is used for according to described channel quality information each channel being sorted according to the channel quality quality, obtains the channel quality order of quality;
Described mapping subelement is used for the mapping policy according to each symbol data of channel that sets in advance and symbol sebolic addressing, and described each symbol data is mapped on described each channel, and correspondence obtains symbol data rearrangement order.
13, device according to claim 12 is characterized in that, when described symbol interleaving mode was the permutation function of a symbol interleaving, described symbol interleaving mode determining unit comprised: function produces subelement;
Described function produces subelement, is used for the symbol sebolic addressing after resetting be multiply by the transposed sequence of resetting preceding symbol sebolic addressing, and correspondence obtains the symbol interleaving permutation function.
14, according to the device described in above-mentioned each claim of claim, it is characterized in that this device further comprises: indicating module;
Described indicating module is used for to the symbol interleaving mode of receiver indication from described symbol interleaving mode selection module.
15, a kind of transmitter of realizing symbol interleaving is characterized in that, this transmitter comprises: symbol interleaving selector and symbol interleaver;
Described symbol interleaving selector is used to obtain channel quality information; Utilize described channel quality information, select symbol interleaving mode, the described symbol interleaving mode of selecting is sent to symbol interleaver;
Described symbol interleaver is used for carrying out symbol interleaving according to described symbol interleaving mode.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101260453A CN101335732B (en) | 2007-06-29 | 2007-06-29 | Symbol interleaving mode selection method, apparatus and transmitter implementing symbol interleaving |
| PCT/CN2008/071480 WO2009003403A1 (en) | 2007-06-29 | 2008-06-28 | Method and corresponding device for selecting the interleave pattern, and transmitter for interleaving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101260453A CN101335732B (en) | 2007-06-29 | 2007-06-29 | Symbol interleaving mode selection method, apparatus and transmitter implementing symbol interleaving |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101335732A true CN101335732A (en) | 2008-12-31 |
| CN101335732B CN101335732B (en) | 2011-11-02 |
Family
ID=40198042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101260453A Active CN101335732B (en) | 2007-06-29 | 2007-06-29 | Symbol interleaving mode selection method, apparatus and transmitter implementing symbol interleaving |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101335732B (en) |
| WO (1) | WO2009003403A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101827400A (en) * | 2009-03-04 | 2010-09-08 | 中兴通讯股份有限公司 | Method and system for transmitting channel quality indicator information |
| CN102714862A (en) * | 2010-01-13 | 2012-10-03 | 索尼公司 | Base Station, Terminal Apparatus, Communication Control Method And Wireless Communication System |
| CN104717040A (en) * | 2015-03-27 | 2015-06-17 | 东南大学 | Channel quality information based self-adaptive interleaving method and device |
| CN105306166A (en) * | 2014-07-08 | 2016-02-03 | 普天信息技术有限公司 | Code block receiving and processing method and device |
| CN109150199A (en) * | 2017-06-17 | 2019-01-04 | 华为技术有限公司 | A kind of interleaving treatment method and device for the Polar code that polarizes |
| CN109716690A (en) * | 2016-09-19 | 2019-05-03 | 高通股份有限公司 | Every symbol K bit interleaver |
| CN109891787A (en) * | 2016-11-04 | 2019-06-14 | 高通股份有限公司 | On-demand is time-interleaved |
| CN116760512A (en) * | 2023-08-17 | 2023-09-15 | 上海朗力半导体有限公司 | HARQ retransmission control method and device for Multi-Link |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8296624B2 (en) * | 2009-06-30 | 2012-10-23 | Comcast Cable Communications, Llc | Variable interleave data transmission |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3014261B2 (en) * | 1993-12-28 | 2000-02-28 | 株式会社ピーエフユー | Interleave method in communication |
| US20060221807A1 (en) * | 2003-07-14 | 2006-10-05 | Masaru Fukuoka | Multi-carrier transmitter apparatus, multi-carrier receiver apparatus and multi-carrier communication method |
| JP2006054745A (en) * | 2004-08-13 | 2006-02-23 | Kddi Corp | Wireless communication device |
| CN1750577B (en) * | 2004-09-17 | 2010-06-16 | 中兴通讯股份有限公司 | Method and device for realizing multipath interleaving and deinterleaving |
| CN101112029A (en) * | 2005-02-02 | 2008-01-23 | 松下电器产业株式会社 | Radio communication system, interleave pattern control device, and interleave pattern control method |
| CN101232486B (en) * | 2007-12-18 | 2011-11-30 | 杭州电子科技大学 | Random sub carrier wave distributing method in multi-user OFDM system |
-
2007
- 2007-06-29 CN CN2007101260453A patent/CN101335732B/en active Active
-
2008
- 2008-06-28 WO PCT/CN2008/071480 patent/WO2009003403A1/en active Application Filing
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101827400B (en) * | 2009-03-04 | 2014-12-10 | 中兴通讯股份有限公司 | Method and system for transmitting channel quality indicator information |
| CN101827400A (en) * | 2009-03-04 | 2010-09-08 | 中兴通讯股份有限公司 | Method and system for transmitting channel quality indicator information |
| US10581565B2 (en) | 2010-01-13 | 2020-03-03 | Sony Corporation | Base station, terminal apparatus, communication control method and radio communication system |
| CN102714862A (en) * | 2010-01-13 | 2012-10-03 | 索尼公司 | Base Station, Terminal Apparatus, Communication Control Method And Wireless Communication System |
| US8885629B2 (en) | 2010-01-13 | 2014-11-11 | Sony Corporation | Base station, terminal apparatus, communication control method and radio communication system |
| RU2553253C2 (en) * | 2010-01-13 | 2015-06-10 | Сони Корпорейшн | Base station, terminal device, data transmission control method and radio communication system |
| CN102714862B (en) * | 2010-01-13 | 2016-06-29 | 索尼公司 | Base station, terminal unit, communication control method and wireless communication system |
| US11153045B2 (en) | 2010-01-13 | 2021-10-19 | Sony Corporation | Base station, terminal apparatus, communication control method and radio communication system |
| US10009154B2 (en) | 2010-01-13 | 2018-06-26 | Sony Corporation | Base station, terminal apparatus, communication control method and radio communication system |
| CN105306166A (en) * | 2014-07-08 | 2016-02-03 | 普天信息技术有限公司 | Code block receiving and processing method and device |
| CN105306166B (en) * | 2014-07-08 | 2018-05-04 | 普天信息技术有限公司 | The receiving handling method and device of code block |
| CN104717040A (en) * | 2015-03-27 | 2015-06-17 | 东南大学 | Channel quality information based self-adaptive interleaving method and device |
| CN104717040B (en) * | 2015-03-27 | 2018-02-02 | 东南大学 | A kind of adaptive interleaving method and device based on channel quality information |
| CN109716690A (en) * | 2016-09-19 | 2019-05-03 | 高通股份有限公司 | Every symbol K bit interleaver |
| CN109716690B (en) * | 2016-09-19 | 2021-09-21 | 高通股份有限公司 | K bit per symbol interleaver |
| CN109891787A (en) * | 2016-11-04 | 2019-06-14 | 高通股份有限公司 | On-demand is time-interleaved |
| CN109891787B (en) * | 2016-11-04 | 2021-12-07 | 高通股份有限公司 | Method and apparatus for on-demand time interleaving |
| CN109150199A (en) * | 2017-06-17 | 2019-01-04 | 华为技术有限公司 | A kind of interleaving treatment method and device for the Polar code that polarizes |
| CN116760512A (en) * | 2023-08-17 | 2023-09-15 | 上海朗力半导体有限公司 | HARQ retransmission control method and device for Multi-Link |
| CN116760512B (en) * | 2023-08-17 | 2023-11-17 | 上海朗力半导体有限公司 | HARQ retransmission control method and device for Multi-Link |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009003403A1 (en) | 2009-01-08 |
| CN101335732B (en) | 2011-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101335732B (en) | Symbol interleaving mode selection method, apparatus and transmitter implementing symbol interleaving | |
| EP1850520B1 (en) | Mimo transmitting apparatus, and data retransmitting method in mimo system | |
| US9219575B2 (en) | Method and apparatus for transmitting data streams in MIMO system | |
| CN101821983B (en) | Asynchronous hybrid arq process indication in a mimo wireless communication system | |
| CN1893342B (en) | Multi-carrier-wave IISDPA business transmission channel coding method and coding apparatus | |
| CN100355231C (en) | Data transmission method having HARQ in multi-carrier system | |
| DE10248446B4 (en) | A transceiver and method for packet retransmission in a mobile communication system | |
| US8121218B2 (en) | Apparatus and method for mapping symbols to resources in a mobile communication system | |
| CN101374038B (en) | Signal retransmission method for OFDM system based on HARQ technology | |
| CN101227261B (en) | Distribution method of physics commingle retransmission indicating channel resource | |
| CN101527623B (en) | Method for transmitting message in physical mixing automatic repeat request indicator channel and system | |
| CN107078991A (en) | Based on signal space diversity of the modulation used using the anglec of rotation | |
| EP1848115B1 (en) | Frequency hopping method and apparatus in a wireless communication system | |
| KR20020096197A (en) | Method and apparatus for transmitting and receiving in cdma mobile communication system | |
| CN103119885A (en) | Method and terminal for mapping acknowledge/ non-acknowledge response message | |
| CN1659817B (en) | Radio transmission device, radio reception device, and method for selecting transmission cancel subcarriers | |
| CN101588226A (en) | The terminal in a kind of large bandwidth multi-carrier system and the sending method of response message | |
| KR20080062886A (en) | Method and apparatus for transmission of reverse-link control-channel acknowledgement channel for forward-link shared control channel in mobile communication systems using orthogonal frequency division multiplexing access | |
| KR20080111342A (en) | Symbol transmission method and apparatus for used in orthogonal frequency division multiplex access systems | |
| KR20100017071A (en) | Method and apparatus for transmitting and receiving uplink acknowledgement channel for downlink data channel in mobile communication systems using orthogonal frequency division multiple access | |
| WO2009157859A2 (en) | Error control in multi-carrier wireless systems | |
| WO2007149047A1 (en) | Re-transmission in a mimo communication system | |
| CN102474399B (en) | Data processing method and apparatus for a HARQ operation | |
| AU2010200782B2 (en) | Apparatus and Method for Transmitting/Receiving Data in a Wireless Communication System | |
| CN101188481B (en) | Method for improving transport efficiency of multi-carrier communication system and multi-carrier communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |