CN101047416B - Data transmission system and method - Google Patents
Data transmission system and method Download PDFInfo
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- CN101047416B CN101047416B CN2006100929704A CN200610092970A CN101047416B CN 101047416 B CN101047416 B CN 101047416B CN 2006100929704 A CN2006100929704 A CN 2006100929704A CN 200610092970 A CN200610092970 A CN 200610092970A CN 101047416 B CN101047416 B CN 101047416B
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Abstract
A method for transmitting data includes carrying out treatment on data to be transmitted by data emitting unit, distributing information bit in data stream to emitting module according to performance of multiple emitting module then emitting data stream to data receiving unit and receiving data stream sent from multiple emitting module of data emitting unit by data receiving unit. The system used for realizing said method is also disclosed.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of data transmission system data transmission method of unifying.
Background technology
MIMO (Multi-Input Multi-Output, multiple-input and multiple-output) application of technology in wireless communication system more and more comes into one's own, no matter be that MIMO has its irreplaceable superiority from angle that increases power system capacity or the angle of improving systematic function.In the MIMO technology, in order more effectively to transmit data, need control the data rate of transmitting terminal, this just needs transmitting terminal to know some information of channel by feedback, dynamically adjusts data rate, even adjusts the emission rate of each transmitting antenna.
Method in common is all modulation and coded system (Modulation ﹠amp that transmitting antenna is supported at present; Coding Scheme is called for short MCS) make a table, an example commonly used is as shown in table 1, is kept at transmitting terminal and receiving terminal simultaneously.Receiving terminal is calculated Signal to Interference plus Noise Ratio (Signal to Interference and Noise Ratio is called for short SINR) according to channel situation, and feedback MCS index gets final product.
| The MCS index | Spectrum efficiency (Bps/Hz) | Modulation | Encoding rate | Bit is represented |
| 6 | 3 | 16QAM | 3/4 | 100 |
| 5 | 2 | 16QAM | 1/2 | 110 |
| 4 | 1.5 | QPSK | 3/4 | 010 |
| 3 | 1 | QPSK | 1/2 | 011 |
| 2 | 0.5 | QPSK | 1/4 | 001 |
| Not 1 (not launching) | 0 | - | - | 000 |
Table 1:MCS mapping table
For single codeword, data flow to be sent is at first passed through operations such as chnnel coding, channel interleaving, rate-matched and planisphere mapping, launches (number that M is transmitting antenna) through different antennas respectively for the data flow of M road phase same rate along separate routes then.Receiving terminal calculates the average SINR of all channels, looks into the average MCS of MCS concordance list feedback.At transmitting terminal, as shown in Figure 1, data flow to be launched adopts unified channel encoder, RM (RateMatching, rate-matched) mode and modulation system, then all data is distributed to each antenna, launches after handling accordingly.According to the difference of the multi-access mode that system adopted, channel code or channel resources such as frequency or time that the data occupancy of this M transmitting antenna is identical.
As shown in Figure 1, channel coding module 102 is the Turbo code of 1/5 code check.Channel interleaving module 104 comprises two submodules, is respectively bit separation and bit permutation.Rate-matched module 106 is punched the sequence length of bringing as required or is repeated.Splitter 108 is to transmit assigning on each antenna according to certain rule through the sequence after the rate-matched.In existing SCW, the information bit mean allocation in the sequence is to each antenna.Modulation module 110 comprises two submodules, be respectively planisphere mapping block 110a and channelizing processing module 110b, wherein, the planisphere mapping comprises modulation systems such as BPSK, QPSK, 8PSK, 16QAM, 64QAM, channelizing is handled and is comprised OFDM or spread spectrum etc., and a plurality of transmitter modules, can be antenna.
The feedback quantity of this mode of SCW is less, and because the channel encoder that adopts has only one, therefore CRC check is at the data on all transmitting antennas, so H-ARQ mechanism is comparatively simple, in case showing, CRC check makes mistakes, all data when pre-treatment retransmit so, only need an ack/nack signal to get final product.
In current techniques, information sequence in the SCW system (being data flow to be sent) through the coding, interweave and rate-matched after carry out shunt, each antenna is uploaded the information bit of equal length when shunt, being about to information sequence divides equally on each antenna, add to send after entering the channelizing processing module after the verification sequence, as shown in Figure 2.In Fig. 2, the bit of representing with the oblique line lattice is an information bit, is check bit with the bit of grid representation.
Since the feedback the time standby be the average SINR of all channels, if SINR does not wait even differs greatly on M the transmitting antenna, then SINR is than having more error code on the miniature antenna, particularly the information bit error code on the less antenna of SINR can have a strong impact on the performance of whole system, and the throughput of system also will inevitably have loss.
Summary of the invention
At above problem, the invention provides a kind of data transmission system method of unifying, can effectively avoid the problem that the information bit mistake on the poor-performing antenna descends whole SCW systematic function in the prior art, can improve the performance of SCW system.
Data transmission system of the present invention comprises: data sending apparatus, comprise a plurality of transmitter modules, data sending apparatus is used for data flow to be sent is handled, and according to the performance of a plurality of transmitter modules the information bit in the data flow is assigned to transmitter module and is emitted to data sink; And data sink, be used to receive the data flow that a plurality of transmitter modules of data sending apparatus send.
Above-mentioned data flow comprises information bit and check bit, and wherein, described information bit is arranged continuously, and described check bit is arranged continuously.
Above-mentioned data sending apparatus can be placed more information bit on the best one or more transmitter modules of performance.
Under the little situation of transmitted bit length that the length of the information bit transmitter module more best than performance can hold, data sending apparatus continues the verification Bit Allocation in Discrete on performance best transmitter module and other transmitter modules after information bit being assigned to the best transmitter module of performance.
Under the big situation of transmitted bit length that the length of the information bit transmitter module more best than performance can hold, data sending apparatus is after being assigned to information bit the best transmitter module of performance, continuation is arrived other transmitter modules with information bit according to the fine or not order assignment of the performance of transmitter module, places check bit again after information bit is all placed.
Above-mentioned data sending apparatus comprises: channel coding module is used for armed data flow is carried out chnnel coding; The channel interleaving module is used for interweaving through the data flow after the chnnel coding; The rate-matched module is used for realizing rate-matched with punching through the data flow of channel interleaving or repeating; Splitter is used for the performance according to transmitter module, the information bit in the data flow is assigned to the best one or more transmitter modules of performance transmits; A plurality of modulation modules are used for a plurality of data flow after the shunt are modulated respectively; And a plurality of transmitter modules, the data flow after being used for will modulating respectively is sent to data sink.
Above-mentioned splitter can carry out shunt to data stream in a plurality of modulation module modulation back.
Above-mentioned splitter comprises: input terminal is used for receiving data stream; Transmitter module performance determination module is used for determining the best transmitter module of one or more performances; The transmitted bit determination module is used for according to the transmitted bit length of determining to be assigned to each transmitter module through the number of the length of the data flow after the rate-matched and transmitter module; Along separate routes control module is used for transmitter module and the transmitted bit length best according to determined one or more performances, and the information bit in the data flow is assigned to lead-out terminal corresponding to the best transmitter module of one or more performances; And a plurality of lead-out terminals, the data flow that is used for distributing is sent to corresponding transmitter module.
Above-mentioned data sink comprises: data reception module is used to receive the data flow that the data transmission end sends.Data sink also comprises: the emitting performance determination module is used for the performance according to one or more transmitter modules of the data flow judgment data emitter that receives; And the emitting performance feedback module, the performance tabulation that is used for the transmitter module that one or more performances are best feeds back to data sending apparatus.Data sink can successively feed back to data sending apparatus according to the order of performance quality with the sequence number of one or more transmitter modules.Data sink also can feed back to data sending apparatus with the poorest one or more antenna sequence numbers, and data sending apparatus is placed on the information bit of not put on the antenna except that the poorest described one or more antennas at random.
Data transmission method of the present invention may further comprise the steps: step S402, and the data transmission end is handled data flow to be sent, and according to the performance of a plurality of transmitter modules the information bit in the data flow is assigned to transmitter module and is emitted to data receiver; And step S404, data receiver receives the data flow of a plurality of transmitter modules transmissions of data transmission end.
Above-mentioned data flow comprises information bit and check bit, and wherein, information bit is arranged continuously, and check bit is arranged continuously.
Above-mentioned data transmission end is placed more information bit to be sent to data receiver on the best one or more transmitter modules of performance.
Under the little situation of transmitted bit length that the length of the information bit transmitter module more best than performance can hold, the data transmission end continues the verification Bit Allocation in Discrete on performance best transmitter module and other transmitter modules after information bit being assigned to the best transmitter module of performance.
Under the big situation of transmitted bit length that the length of the information bit transmitter module more best than performance can hold, the data transmission end is after being assigned to information bit the best transmitter module of performance, continuation is arrived other transmitter modules with information bit according to the fine or not order assignment of the performance of transmitter module, places check bit again after information bit is all placed.
Above-mentioned step S402 may further comprise the steps: step S402-2, carry out chnnel coding by channel coding module to data stream; Step S402-4 interweaves to the data flow of carrying out after the chnnel coding by the channel interleaving module; Step S402-6, the through-rate matching module will punch or repeat through the data flow of channel interleaving; Step S402-8 is assigned to the best one or more transmitter modules of performance by splitter with the information bit in the data flow and is emitted to data receiver; Step S402-10 modulates respectively by a plurality of data flow of a plurality of modulation modules after to shunt; And step S402-12, the data flow after will modulating respectively by a plurality of transmitter modules is sent to data receiver.
Can modulate the back at a plurality of modulation modules and carry out shunt by splitter.
Above-mentioned step S402-8 comprises: step S402-8-2, by an input terminal receiving data stream of splitter; Step S402-8-4 determines the transmitter module that one or more performances are best; Step S402-8-6 transmits bit length according to determining to be assigned on each transmitter module through the number of the length of the data flow after the rate-matched and transmitter module; Step S402-8-8, transmitter module and transmitted bit length that splitter is best according to determined one or more performances are assigned to lead-out terminal corresponding to the best transmitter module of one or more performances with the information bit in the data flow; And step S402-8-10, splitter is sent to corresponding transmitter module by a plurality of lead-out terminals with the data flow of distributing.
Above-mentioned step S404 may further comprise the steps: step S404-2, data receiver receives the data flow that the data transmission end sends.Step S404 is further comprising the steps of: step S404-4, and data receiver is according to the performance of one or more transmitter modules of the data flow judgment data transmitting terminal that receives; And step S404-6, the performance tabulation of the transmitter module that data receiver is best with one or more performances feeds back to the data transmission end.Data receiver can successively feed back to the data transmission end according to the order of performance quality with the sequence number of one or more transmitter modules.Data receiver also can feed back to the data transmission end with the poorest one or more antenna sequence numbers, and the data transmission end is placed on the information bit of not put on the antenna except that the poorest described one or more antennas at random.
The present invention can reach and improve the SCW performance by changing the position of information bit on each antenna of SCW, improves the effect of throughput of system.
Description of drawings
Accompanying drawing provides further understanding of the present invention, and is attached to a part that constitutes the application among the application, illustrates that with specification embodiments of the invention are to explain principle of the present invention.In the accompanying drawings,
Fig. 1 is the MIMO structure according to the single codeword pattern of prior art;
Fig. 2 is the mode of Bit Allocation in Discrete on each antenna in the single codeword system according to prior art;
Fig. 3 a is the block diagram according to data transmission system of the present invention;
Fig. 3 b is the structured flowchart according to the data sending apparatus in the data transmission system of the present invention;
Fig. 3 c is the structured flowchart according to the splitter in the data sending apparatus in the data transmission system of the present invention;
Fig. 3 d is the structured flowchart according to the data sink in the data transmission system of the present invention;
Fig. 4 a is the flow chart according to data transmission method of the present invention;
Fig. 4 b is the flow chart according to the step S402 of data transmission method of the present invention;
Fig. 4 c is the flow chart according to the step S402-8 of data transmission method of the present invention;
Fig. 4 d is the flow chart according to the step S404 of data transmission method of the present invention;
Fig. 5 is the schematic diagram of the Bit distribution method in the data transmission system according to an embodiment of the invention; And
Fig. 6 is the schematic diagram of Bit distribution method in according to another embodiment of the invention the data transmission system.
Embodiment
Describe embodiments of the invention in detail below with reference to accompanying drawing.
Fig. 3 a is the block diagram according to data transmission system of the present invention.Shown in Fig. 3 a, data transmission system of the present invention comprises:
Data sending apparatus 302 comprises a plurality of transmitter modules, and data sending apparatus is used for data flow to be sent is handled, and according to the performance of a plurality of transmitter modules the information bit in the data flow is assigned to transmitter module and is emitted to data sink; And
Data sink 304 is used to receive the data flow that a plurality of transmitter modules of data sending apparatus send.
Wherein, data flow comprises information bit and check bit, and wherein, information bit is arranged continuously, and check bit is arranged continuously.
Data sending apparatus can be placed more information bit on the best one or more transmitter modules of performance.
Under the little situation of transmitted bit length that the length of the information bit transmitter module more best than performance can hold, data sending apparatus continues the verification Bit Allocation in Discrete on performance best transmitter module and other transmitter modules after information bit being assigned to the best transmitter module of performance.
Under the big situation of transmitted bit length that the length of the information bit transmitter module more best than performance can hold, data sending apparatus is after being assigned to information bit the best transmitter module of performance, continuation is arrived other transmitter modules with information bit according to the fine or not order assignment of the performance of transmitter module, places check bit again after information bit is all placed.
Fig. 3 b is the block diagram according to data sending apparatus of the present invention.Shown in Fig. 3 b, data sending apparatus 302 comprises: channel coding module 102 is used for armed data flow is carried out chnnel coding; Channel interleaving module 104 is used for interweaving through the data flow after the chnnel coding; Rate-matched module 106 is used for realizing rate-matched with punching through the data flow of channel interleaving or repeating; Splitter 302-2 is used for the performance according to transmitter module, the information bit in the data flow is assigned to the best one or more transmitter modules of performance transmits; A plurality of modulation modules 110 are used for a plurality of data flow after the shunt are modulated respectively; And a plurality of transmitter modules 112, the data flow after being used for will modulating respectively is sent to data sink.Wherein, no matter splitter does not influence the enforcement of inventive concept before the modulation module or after modulation module.
Fig. 3 c is the structured flowchart according to splitter of the present invention.Shown in Fig. 3 c, splitter 302-2 comprises: input terminal 302-2-2 is used for receiving data stream; Transmitter module performance determination module 302-2-4 is used for determining the best transmitter module of one or more performances; Transmitted bit determination module 302-2-6 is used for according to the transmitted bit length of determining to be assigned to each transmitter module through the number of the length of the data flow after the rate-matched and transmitter module; Shunt control module 302-2-8, be used for transmitter module and the transmitted bit length best according to determined one or more performances, with the information bit continuous dispensing in the data flow to corresponding to the lead-out terminal of the best transmitter module of one or more performances, and with the check bit continuous dispensing in the data flow to lead-out terminal corresponding to other transmitter modules; And a plurality of lead-out terminal 302-2-10, the data flow that is used for distributing is sent to corresponding transmitter module.
Fig. 3 d is the structured flowchart according to data sink of the present invention.Shown in Fig. 3 d, data sink 304 comprises: data reception module 304-2 is used to receive the data flow that the data transmission end sends.Data sink can also comprise: emitting performance determination module 304-4 is used for the performance according to one or more transmitter modules of the data flow judgment data emitter that receives; And emitting performance feedback module 304-6, the performance tabulation that is used for the transmitter module that one or more performances are best feeds back to data sending apparatus.Wherein, data sink can successively feed back to data sending apparatus according to the order of performance quality with the sequence number of one or more transmitter modules.Data sink also can feed back to data sending apparatus with the poorest one or more antenna sequence numbers, and data sending apparatus is placed on the information bit of not put on the antenna except that the poorest described one or more antennas at random.
Fig. 4 a is the flow chart according to data transmission method of the present invention.Shown in Fig. 4 a, data transmission method of the present invention may further comprise the steps:
Step S402, the data transmission end is handled data flow to be sent, and according to the performance of a plurality of transmitter modules the information bit in the data flow is assigned to transmitter module and is emitted to data receiver; And
Step S404, data receiver receive the data flow of a plurality of transmitter modules transmissions of data transmission end.
Wherein, data flow comprises information bit and check bit, and wherein, information bit is arranged continuously, and check bit is arranged continuously.
The data transmission end can be placed more information bit to be sent to data receiver on the best one or more transmitter modules of performance.
Under the little situation of transmitted bit length that the length of the information bit transmitter module more best than performance can hold, the data transmission end continues the verification Bit Allocation in Discrete on performance best transmitter module and other transmitter modules after information bit being assigned to the best transmitter module of performance.
Under the big situation of transmitted bit length that the length of the information bit transmitter module more best than performance can hold, the data transmission end is after being assigned to information bit the best transmitter module of performance, continuation is arrived other transmitter modules with information bit according to the fine or not order assignment of the performance of transmitter module, places check bit again after information bit is all placed.
Fig. 4 b is the flow chart according to the step S402 of data transmission method of the present invention.Shown in Fig. 4 b, step S402 may further comprise the steps:
Step S402-2 carries out chnnel coding by channel coding module to data stream;
Step S402-4 interweaves to the data flow of carrying out after the chnnel coding by the channel interleaving module;
Step S402-6, the through-rate matching module will punch or repeat through the data flow of channel interleaving;
Step S402-8, transmitter module performance tabulation according to the data receiver feedback, by splitter the information bit continuous dispensing in the data flow is transmitted to the best one or more transmitter modules of performance, the check bit continuous dispensing in the data flow is transmitted to other transmitter modules;
Step S402-10 modulates respectively by a plurality of data flow of a plurality of modulation modules after to shunt; And
Step S402-12, the data flow after will modulating respectively by a plurality of transmitter modules is sent to data receiver.
In above step, can modulate the back at a plurality of modulation modules and carry out shunt by splitter.
Fig. 4 c is the flow chart according to the step S402-8 of data transmission method of the present invention.Shown in Fig. 4 c, step S402-8 comprises:
Step S402-8-2 is by an input terminal receiving data stream of splitter;
Step S402-8-4 determines the transmitter module that one or more performances are best;
Step S402-8-6 transmits bit length according to determining to be assigned on each transmitter module through the number of the length of the data flow after the rate-matched and transmitter module;
Step S402-8-8, transmitter module and transmitted bit length that splitter is best according to determined one or more performances, with the information bit continuous dispensing in the data flow to corresponding to the lead-out terminal of the best transmitter module of one or more performances; And
Step S402-8-10, splitter is sent to corresponding transmitter module by a plurality of lead-out terminals with the data flow of distributing.
Fig. 4 d is the flow chart of the step that comprises according to the step S404 in the data transmission method of the present invention.Shown in Fig. 4 d, step S404 may further comprise the steps:
Step S404-2, data receiver receives the data flow that the data transmission end sends;
Step S404-4, data receiver is according to the performance of one or more transmitter modules of the data flow judgment data transmitting terminal that receives; And
Step S404-6, the performance tabulation of the transmitter module that data receiver is best with one or more performances feeds back to data sending apparatus.
Above-mentioned data receiver can successively feed back to the data transmission end according to the order of performance quality with the sequence number of one or more transmitter modules.Data receiver also can feed back to the data transmission end with the poorest one or more antenna sequence numbers, and the data transmission end is placed on the information bit of not put on the antenna except that the poorest described one or more antennas at random.
In order to solve the problems of the prior art, the structured flowchart of system does not change, and still as shown in Figure 1, but need do improvement to the splitter among Fig. 1.Because in encoding and decoding, information bit is (if constellation mapping is before splitter then be information symbol, here for simplicity, all use information bit) importance be greater than check bit, be to occur error code on the information bit Effect on Performance is greater than check bit error code occurs to Effect on Performance, so in the solution of the present invention, information bit is placed on one or more antennas of performance best (SINR is big) as far as possible and transmits, transmit and check bit is placed on the antenna of remaining poor-performing.
When shunt, at first information bit is placed on the best antenna of performance, if information bit length is less than the bit length that can hold on this antenna, then continuing to place check bit on this antenna and on other antennas, if information bit length is greater than the bit length that can hold on this antenna, then on the second-best antenna of performance, continue to place information bit, place check bit again up to the whole placements of information bit.
For example, as shown in Figure 5, for encoder bit rate is 1/4, modulation system is QPSK, the SCW system of 2 antennas, if transmission during certain 1 frame the performance of antenna 1 be better than the performance of antenna 2, i.e. SINR1＞SINR2, then whole information bits all is placed on the antenna 1 and transmits, remaining position and antenna 2 are used for the transfer check bit on the antenna 1.
For example, as shown in Figure 6, for encoder bit rate is 2/3, modulation system is QPSK, and the SCW system of 4 antennas is if the performance of 4 antennas is SINR1＞SINR2＞SINR3＞SINR4 when certain 1 frame of transmission, then information bit is successively placed on the 1st according to the order of performance of antenna, the 2nd, on the 3rd antenna, then check bit is placed on antenna 3 remaining positions and the antenna 4 and transmits.
In real system, because therefore transmitting terminal and do not know performance is best on which antenna need do feedback to antenna performance.In fact in the present invention, only need to get final product by the order feeding back antenna sequence number of performance quality.Receiving terminal can obtain SINR on each transmitting antenna by Channel Detection, and receiving terminal is selected the sequence number of the best antenna of one or more best (M-1 at most) performances then in order to these SINR orderings, feeds back to transmitting terminal.In practice, in order to reduce feedback quantity, also can select only to feed back the sequence number of one or more best antennas, and the information bit of not put is placed on other antennas at random, can also select to feed back the poorest one or more antenna sequence numbers, the information bit of not put is placed on the antenna except that these the poorest one or more antennas at random.Such as, in the above-described embodiments, the best antenna of a feedback performance is the sequence number of antenna 1, needs to distinguish like this and originally
The situation of kind will be fed back 5bit and compare, and only needs to distinguish
The situation of kind, feedback 2bit has reduced feedback quantity.
The present invention can reach and improve the SCW performance by changing the position of information bit on each antenna of SCW, improves the effect of throughput of system.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.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 (20)
1. a data transmission system is characterized in that, described system comprises:
Data sending apparatus, comprise a plurality of transmitter modules, described data sending apparatus is used for handling to sent data flow, and according to the performance of described a plurality of transmitter modules the information bit in the data flow is assigned to described transmitter module and is emitted to data sink; And
Described data sink is used to receive the data flow that a plurality of transmitter modules of described data sending apparatus send,
Wherein, described data sending apparatus comprises:
Channel coding module is used for armed data flow is carried out chnnel coding;
The channel interleaving module is used for interweaving through the data flow after the chnnel coding;
The rate-matched module is used for realizing rate-matched with punching through the data flow of channel interleaving or repeating;
Splitter is used for the performance according to described transmitter module, the information bit in the data flow is assigned to the best one or more described transmitter module of performance transmits;
A plurality of modulation modules are used for a plurality of data flow after the shunt are modulated respectively; And
A plurality of transmitter modules, the data flow after being used for will modulating respectively is sent to described data sink,
Wherein, described splitter comprises:
Input terminal is used for receiving data stream;
Transmitter module performance determination module is used for determining the best transmitter module of one or more performances;
The transmitted bit determination module is used for according to the transmitted bit length of determining to be assigned to each described transmitter module through the number of the length of the data flow after the rate-matched and described transmitter module;
Along separate routes control module is used for transmitter module and the described transmitted bit length best according to determined one or more performances, and the information bit in the data flow is assigned to lead-out terminal corresponding to the best transmitter module of described one or more performances; And
A plurality of lead-out terminals, the data flow that is used for distributing is sent to corresponding transmitter module.
2. data transmission system according to claim 1 is characterized in that described data flow comprises information bit and check bit, and wherein, described information bit is arranged continuously, and described check bit is arranged continuously.
3. data transmission system according to claim 2 is characterized in that, described data sending apparatus is placed more information bit on the best one or more transmitter modules of performance.
4. data transmission system according to claim 2, it is characterized in that, under the little situation of the length transmitted bit length that best transmitter module can hold than described performance of information bit, described data sending apparatus continues described check bit is assigned on the best transmitter module of described performance and other transmitter modules after described information bit is assigned to the best transmitter module of described performance.
5. data transmission system according to claim 2, it is characterized in that, under the big situation of the length transmitted bit length that best transmitter module can hold than described performance of information bit, described data sending apparatus is after being assigned to the best transmitter module of described performance with described information bit, continuation is arrived other transmitter modules with described information bit according to the fine or not order assignment of the performance of described transmitter module, places described check bit again after described information bit is all placed.
6. according to each described data transmission system in the claim 1 to 5, it is characterized in that described splitter can carry out shunt to data stream in described a plurality of modulation module modulation back.
7. according to each described data transmission system in the claim 1 to 5, it is characterized in that described data sink comprises:
Data reception module is used to receive the data flow that the data transmission end sends.
8. according to each described data transmission system in the claim 1 to 5, it is characterized in that described data sink comprises:
The emitting performance determination module is used for judging according to the data flow that receives the performance of one or more transmitter modules of described data sending apparatus; And
The emitting performance feedback module, the performance tabulation that is used for the transmitter module that one or more performances are best feeds back to described data sending apparatus.
9. data transmission system according to claim 8 is characterized in that, described data sink can successively feed back to described data sending apparatus according to the order of performance quality with the sequence number of described one or more transmitter modules.
10. data transmission system according to claim 8, it is characterized in that, described data sink feeds back to described data sending apparatus with the poorest one or more antenna sequence numbers, and described data sending apparatus is placed on the information bit of not put on the antenna except that the poorest described one or more antennas at random.
11. a data transmission method is characterized in that, said method comprising the steps of:
Step S402, the data transmission end is handled data flow to be sent, and according to the performance of a plurality of transmitter modules the information bit in the data flow is assigned to described transmitter module and is emitted to data receiver; And
Step S404, data receiver receive the data flow of a plurality of transmitter modules transmissions of described data transmission end,
Wherein, described step S402 may further comprise the steps:
Step S402-2 carries out chnnel coding by the channel coding module of described data transmission end to data stream;
Step S402-4, the channel interleaving module by described data transmission end interweaves to the data flow of carrying out after the chnnel coding;
Step S402-6, the rate-matched module by described data transmission end will be punched or repeat through the data flow of channel interleaving;
Step S402-8, the splitter by described data transmission end is assigned to the best one or more described transmitter module of performance with the information bit in the data flow and is emitted to described data receiver;
Step S402-10, a plurality of modulation modules by the described data transmission end a plurality of data flow after to shunt are modulated respectively; And
Step S402-12, the data flow after will modulating respectively by a plurality of transmitter modules of described data transmission end is sent to described data receiver,
Wherein, described step S402-8 comprises:
Step S402-8-2 is by an input terminal receiving data stream of described splitter;
Step S402-8-4 determines the transmitter module that one or more performances are best;
Step S402-8-6 transmits bit length according to determining to be assigned on each described transmitter module through the number of the length of the data flow after the rate-matched and described transmitter module;
Step S402-8-8, transmitter module and described transmitted bit length that described splitter is best according to determined one or more performances are assigned to lead-out terminal corresponding to the best transmitter module of described one or more performances with the information bit in the data flow; And
Step S402-8-10, described splitter is sent to corresponding transmitter module by a plurality of lead-out terminals with the data flow of distributing.
12. data transmission method according to claim 11 is characterized in that, described data flow comprises information bit and check bit, and wherein, described information bit is arranged continuously, and described check bit is arranged continuously.
13. data transmission method according to claim 12 is characterized in that, described data transmission end is placed more information bit to be sent to described data receiver on the best one or more transmitter modules of performance.
14. data transmission method according to claim 12, it is characterized in that, under the little situation of the length transmitted bit length that best transmitter module can hold than described performance of information bit, described data transmission end continues described check bit is assigned on the best transmitter module of described performance and other transmitter modules after described information bit is assigned to the best transmitter module of described performance.
15. data transmission method according to claim 12, it is characterized in that, under the big situation of the length transmitted bit length that best transmitter module can hold than described performance of information bit, described data transmission end is after being assigned to the best transmitter module of described performance with described information bit, continuation is arrived other transmitter modules with described information bit according to the fine or not order assignment of the performance of described transmitter module, places described check bit again after described information bit is all placed.
16. according to each described data transmission method in the claim 11 to 15, it is characterized in that, can modulate the back at described a plurality of modulation modules and carry out shunt by described splitter.
17., it is characterized in that described step S404 may further comprise the steps according to each described data transmission method in the claim 11 to 15:
Step S404-2, described data receiver receive the data flow that described data transmission end sends.
18. data transmission method according to claim 17 is characterized in that, described step S404 is further comprising the steps of:
Step S404-4, described data receiver judge the performance of one or more transmitter modules of described data transmission end according to the data flow that receives; And
Step S404-6, the performance tabulation of the transmitter module that described data receiver is best with one or more performances feeds back to described data transmission end.
19. data transmission method according to claim 18 is characterized in that, described data receiver can successively feed back to described data transmission end according to the order of performance quality with the sequence number of described one or more transmitter modules.
20. data transmission method according to claim 18, it is characterized in that, described data receiver feeds back to described data transmission end with the poorest one or more antenna sequence numbers, and described data transmission end is placed on the information bit of not put on the antenna except that the poorest described one or more antennas at random.
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| CN101425990B (en) * | 2007-10-30 | 2011-04-13 | 华为技术有限公司 | Data transmission method and system |
| CN102150394B (en) * | 2008-09-30 | 2014-06-18 | 香港中文大学 | Systems and methods for determining top spreaders |
| CN102195759B (en) * | 2010-03-19 | 2014-03-12 | 上海贝尔股份有限公司 | Scalable video transmission method for wideband long term evolution-advanced (LTE-A) system |
| CN102594522A (en) * | 2012-03-21 | 2012-07-18 | 电子科技大学 | Multi-antenna transmission system and method |
| US20130322422A1 (en) * | 2012-05-31 | 2013-12-05 | Mediatek Inc. | Telecommunications methods for implementing early termination of transmission |
| CN106464425B (en) * | 2014-06-13 | 2019-05-24 | 华为技术有限公司 | Transmitter device and receiver apparatus and its method |
| CN108964691A (en) * | 2017-05-26 | 2018-12-07 | 聚晶半导体股份有限公司 | Data transmission system |
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| CN1455524A (en) * | 2003-03-17 | 2003-11-12 | 西南交通大学 | Space parallel interleaving method for multi-emitting-multi-receiving (MIMO) antenna array system |
| CN1522512A (en) * | 2001-05-16 | 2004-08-18 | �����ɷ� | Method and apparatus for allocating resources in a multiple-input multiple-output (MIMO) communication system |
| CN1717888A (en) * | 2002-10-25 | 2006-01-04 | 高通股份有限公司 | MIMO system with multiple spatial multiplexing modes |
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| CN1522512A (en) * | 2001-05-16 | 2004-08-18 | �����ɷ� | Method and apparatus for allocating resources in a multiple-input multiple-output (MIMO) communication system |
| CN1717888A (en) * | 2002-10-25 | 2006-01-04 | 高通股份有限公司 | MIMO system with multiple spatial multiplexing modes |
| CN1455524A (en) * | 2003-03-17 | 2003-11-12 | 西南交通大学 | Space parallel interleaving method for multi-emitting-multi-receiving (MIMO) antenna array system |
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