CN101771520B - Method and device for sending feedback information - Google Patents
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Abstract
The invention relates to a wireless communication technology, in particular to a method and a device for sending feedback information, thereby being capable of carrying out feedback for the situation that the number of uplink carriers and the number of downlink carriers are different in a long-term evolution multi-carrier system. The method of the embodiment comprises the following steps: carrying out decoding treatment on a code word carried by each downlink sub-frame of each downlink carrier in a plurality of received downlink carriers; determining feedback information which corresponds to the code word carried by each downlink sub-frame of each downlink carrier according to the result of decoding treatment; carrying out merging treatment on all the determined feedback information; and sending the feedback information after the merging treatment through the uplink carriers. The adoption of the method of the embodiment can improve the feedback under the situation that the number of the uplink carriers and the number of the downlink carriers are different and further improve the system efficiency.
Description
Technical field
The present invention relates to wireless communication technology, particularly a kind of method and apparatus that sends feedback information.
Background technology
For long-term evolution multi-carrier system, for supporting the system bandwidth wider than long evolving system, such as 100MHz, a kind of may be directly to distribute the frequency spectrum of 100M bandwidth referring to Figure 1A, a kind of may be to distribute to some spectrum aggregatings of existing system, gather into large bandwidth and supply with the long-term evolution multi-carrier system use, in system, up-link carrier and descending carrier can asymmetricly configure at this moment, be that the user may take N descending carrier and carries out downlink transfer, take M up-link carrier and carry out uplink, and N ≠ M is referring to Figure 1B.
If N＞M, terminal need to be transmitted the feedback information on a plurality of descending carriers in a up-link carrier.Opened HARQ (Hybrid Automatic Repeat reQuest in descending transmission, the mixed automatic retransfer request) during function, terminal is after having completed demodulation to the data on descending sub frame n ', decoding, the signaling that will whether need to retransmit in the data on this descending sub frame of base station feedback on sub-frame of uplink n=n '+k (is ACK (response message)/NACK (wrong responses information), wherein ACK represents with " 1 ", this moment, data correctly received, and did not need to retransmit; NACK is with " 0 " expression, this moment, the data decoding mistake, needed to retransmit).
When carrying out many code words (code word) transmission, system will be on same physical resource by the usage space multiplex technique, and multiplexing transmission belongs to the multiplex data stream of same terminal.The code word of the carrying of the data flow in a subframe is carried out decoding to be processed.This moment, the content (ACK or NACK) of feedback information will be based on the result to codeword decoding, namely to obtaining 1 independently ACK or NACK after each codeword decoding.
For FDD (Frequency division duplex, Frequency Division Duplexing (FDD)) system, because sub-frame of uplink in system and descending sub frame number are identical, therefore a sub-frame of uplink n-4 transmitting feedback information corresponding with it can be found for each descending sub frame n, namely one or two feedback informations can be carried at most in each sub-frame of uplink.feedback information is through BPSK (Binary phase shift keying, two-phase PSK) modulation or QPSK (Quadrature phase shift keying, quarternary phase-shift keying (QPSK)) modulation, obtain a modulation symbol, carry a modulation symbol in each sub-frame of uplink, this modulation symbol (first uses cyclically shifted sequences to carry out spread spectrum on frequency domain through twice spread spectrum, re-use orthogonal sequence and carrying out spread spectrum on time domain) etc. become a single carrier after processing and broadcast signal after, transmit in the feedback channel of appointment, the mode that in the residential quarter, the feedback information of a plurality of terminals divides by code is multiplexing to be transmitted on identical physical resource.
For TDD, because there is the various configurations ratio in its ascending-descending subframes, when descending number of sub frames was counted greater than sub-frame of uplink, terminal will be fed back the feedback information on a plurality of descending sub frames in a sub-frame of uplink.
But in present long-term evolution multi-carrier system, only for the sub-frame of uplink number feedback scheme different with the descending sub frame number, the scheme of also not feeding back for the up-link carrier number situation different with the descending carrier number.
In sum, the scheme of not feeding back for the up-link carrier number situation different with the descending carrier number in present long-term evolution multi-carrier system.
Summary of the invention
A kind of method and apparatus that sends feedback information that the embodiment of the present invention provides in order in long-term evolution multi-carrier system, can feed back for the situation that the up-link carrier number is different with the descending carrier number.
A kind of method that sends feedback information that the embodiment of the present invention provides comprises:
The code word of the descending sub frame of each descending carrier in a plurality of descending carriers of receiving carrying is carried out decoding to be processed;
According to the result that decoding is processed, determine the feedback information corresponding to code word of each descending sub frame carrying of each descending carrier;
All feedback informations of determining are merged processing;
The feedback information that merges after processing is sent by up-link carrier.
A kind of terminal that the embodiment of the present invention provides comprises:
Receiving processing module is used for that the code word of the descending sub frame carrying of a plurality of each descending carrier of descending carrier of receiving is carried out decoding and processes;
The information determination module is used for the result according to the decoding processing, determines the feedback information corresponding to code word of each descending sub frame carrying of each descending carrier;
Processing module is used for all feedback informations of determining are merged processing;
Sending module, the feedback information that is used for merging after processing sends by up-link carrier.
The embodiment of the present invention is carried out decoding to the code word of the descending sub frame carrying of each descending carrier in a plurality of descending carriers of receiving and is processed; According to the result that decoding is processed, determine the feedback information corresponding to code word of each descending sub frame carrying of each descending carrier; All feedback informations of determining are merged processing; The feedback information that merges after processing is sent by up-link carrier.Due in long-term evolution multi-carrier system, can feed back for the situation that the up-link carrier number is different with the descending carrier number, thereby improved system effectiveness, and this scheme is simple, easily implement, be applicable to FDD system and TDD system, thus can well with LTERelease 8 system compatibles.
Description of drawings
Figure 1A is the single-frequency spectral system schematic;
Figure 1B is the frequency spectrum polymerization system schematic diagram;
Fig. 2 is the structural representation of embodiment of the present invention terminal;
Fig. 3 A is that embodiment of the present invention single codeword time domain merges schematic diagram;
Fig. 3 B is that the embodiment of the present invention two code word time domains merge schematic diagram;
Fig. 4 A is that embodiment of the present invention time domain merges schematic diagram one;
Fig. 4 B is that embodiment of the present invention time domain merges schematic diagram two;
Fig. 4 C is that embodiment of the present invention single codeword frequency domain merges schematic diagram;
Fig. 4 D is that the embodiment of the present invention two code word frequency domains merge schematic diagram;
Fig. 5 is the method flow schematic diagram that the embodiment of the present invention sends feedback information;
Fig. 6 is the schematic diagram one that embodiment of the present invention FDD system is fed back;
Fig. 7 is the schematic diagram two that embodiment of the present invention FDD system is fed back
Fig. 8 is the schematic diagram three that embodiment of the present invention FDD system is fed back;
Fig. 9 is the schematic diagram that embodiment of the present invention TDD system is fed back.
Embodiment
The embodiment of the present invention is carried out decoding to the code word of the descending sub frame carrying of each descending carrier in a plurality of descending carriers of receiving and is processed; According to the result that decoding is processed, determine the feedback information corresponding to code word of each descending sub frame carrying of each descending carrier; All feedback informations of determining are merged processing; Feedback information after merge processing is sent by up-link carrier, owing to can merge processing according to the feedback information of descending carrier, thereby be used in the up-link carrier number situation different with the descending carrier number.
As shown in Figure 2, the terminal of the embodiment of the present invention comprises: receiving processing module 10, information determination module 20, processing module 30 and sending module 40.
Wherein, if two data flow of the descending sub frame of descending carrier carrying are carried out decoding to two code words (code word 1 and code word 2) in each data flow respectively and are processed.
A plurality of descending carriers of receiving can make interior a plurality of descending carriers of receiving of a period of time of setting; Can be also a plurality of descending carriers of receiving simultaneously.
Wherein, if 10 pairs of codeword decoding successes of receiving processing module, feedback information corresponding to this code word is ACK; Accordingly, if 10 pairs of codeword decoding failures of receiving processing module, feedback information corresponding to this code word is NACK.
If two code words of descending sub frame carrying, this descending sub frame just has two feedback informations.
Sending module 40 is used for the feedback information that processing module 30 merges after processing is sent by up-link carrier.
Wherein, the mode that 30 pairs of feedback informations of processing module merge processing has a variety of, no matter which kind of merging mode all needs to guarantee following merging processing rule:
1, the feedback information that merges after processing can only have two state: ACK, NACK;
When the feedback information that 2, merges processing all was ACK, the feedback information that merges after processing was ACK;
3, the feedback information that merges processing is all NACK, and when not reaching the number of retransmissions of setting, the feedback information that merges after processing is NACK.
If merging the feedback information of processing is partly ACK, part is NACK, and the feedback information of selecting as required to merge after processing is ACK or NACK.
Be not ACK entirely such as setting the feedback information that merges processing, and when not reaching the number of retransmissions of setting, the feedback information that merges after processing is NACK;
Can also set when the ACK of the feedback information that merges processing quantity is not less than NACK, the feedback information that merges after processing is ACK, less than NACK, and when not reaching the number of retransmissions of setting, the feedback information that merges after processing is NACK when the ACK of the feedback information that merges processing quantity.
Need to prove, the feedback information that merges processing is partly ACK, and part is the situation of NACK, is not limited to several processing mode above-mentioned, as long as can determine finally that the mode of the content of the feedback information after merging is processed all is suitable for the present embodiment.
The below is in mode that merge to process as time domain merges, frequency domain merges, first time domain merges that frequency domain merges again, first frequency domain merges that time domain merges, first time domain merges frequency domain multiplexing again again and first frequency domain merges six kinds of modes of time-domain multiplexed again and describes respectively.
Be that time domain merges (bundling) if merge the mode of processing, processing module 30 can further include: the first grouping module 300 and first merges processing module 310.
The first grouping module 300 is used for the descending sub frame of all descending carriers is divided into groups, and the descending sub frame in each group is the descending sub frame in same descending carrier.
Here be that the descending sub frame in same descending carrier is divided into one group, if X descending carrier arranged, can be divided into accordingly the X group.
First merges processing module 310, is used for respectively the feedback information corresponding to code word of the descending sub frame carrying of every group merged processing, obtains the feedback information after every group of corresponding merging processed.
Here the feedback information corresponding to code word of the carrying of the descending sub frame in a group can be carried out logic and " add " processing, thereby obtain one group of feedback information that descending carrier is corresponding; If X descending carrier arranged, can obtain X group feedback information.
Can certainly adopt other to merge processing mode, but must guarantee to satisfy the requirement that merges processing rule.
If C
iBe the maximum number of the code word transmitted in M subframe in descending carrier i, wherein i ∈ 0,1 ..., M-1} will obtain C on each descending carrier
iACK/NACK after individual merging (is b
i).Referring to Fig. 3 A, will obtain C on each descending carrier
MACK/NACK after individual merging (is b
0).
If the descending sub frame of a plurality of code words of carrying is arranged in one group, also just say so, descending sub frame has carried a plurality of data flow, process a plurality of code words that a rear descending sub frame will be corresponding, first merges processing module 310 feedback information corresponding to code word of same code word numbering in a group is merged.
Such as descending sub frame has carried two data flow, process two code words (being code word 1 and code word 2) that a rear descending sub frame will be corresponding, in one group, the feedback information that the code word of all code words 1 is corresponding merges, the feedback information that the code word of all code words 2 is corresponding merges, and such one group will to obtain two ACK/NACK after merging (be b
0And b
1), referring to Fig. 3 B.
If in one group, not every descending sub frame has two code words, merge processing mode also identical with mode in Fig. 3 B, just b
0And b
1The quantity of the feedback information that middle participation merges is not identical.
Be that frequency domain merges (bundling) if merge the mode of processing, processing module 30 can further include: the second grouping module 320 and second merges processing module 330.
The second grouping module 320 is used for the descending sub frame of all descending carriers is divided into groups, and the subframe numbering of the descending sub frame in each group is identical.
Here be that the identical descending sub frame of all descending carrier neutron frame numbers is divided into one group, if X subframe arranged in descending carrier, can be divided into accordingly the X group.
Second merges processing module 330, is used for respectively the feedback information corresponding to code word of the descending sub frame carrying of every group merged processing, obtains the feedback information after every group of corresponding merging processed.
Here the feedback information corresponding to code word of the carrying of the descending sub frame in a group can be carried out logic and " add " processing, thereby obtain one group of feedback information that descending carrier is corresponding; If X descending carrier arranged, can obtain X group feedback information.
Can certainly adopt other to merge processing mode, but must guarantee to satisfy the requirement that merges processing rule.
Merge mode for frequency domain and enumerating three kinds of modes here.
First kind of way: second merges processing module 330 merges processing to the feedback information corresponding to code word of all descending sub frames carryings in every group respectively, obtains the feedback information after every group of corresponding merging processed.
Concrete, if a plurality of code words of descending sub frame carrying, first take descending sub frame as unit, the feedback information corresponding to a plurality of code words of descending sub frame carrying merged (if there is no a plurality of code words of descending sub frame carrying, do not need to carry out this step), then the feedback information corresponding to code word of all descending sub frames carryings in every group merged processing.
Referring to Fig. 4 A, suppose that descending sub frame corresponding to this group is numbered 3, one total N descending carrier, two code words of some descending sub frame carryings, first code word 1 and code word 2 are merged processing, and then the descending sub frame in the 1st to N descending carrier is numbered 3 feedback information corresponding to descending sub frame merges and process that to obtain an ACK/NACK (be b
0).
The second way: at least one descending sub frame during the second merging processing module 330 is determined every group, feedback information corresponding to code word that the descending sub frame of determining is carried merges processing, and feedback information corresponding to code word that the remaining descending sub frame in every group is carried merges processing.
Concrete, if a plurality of code words of descending sub frame carrying, first take descending sub frame as unit, the feedback information corresponding to a plurality of code words of descending sub frame carrying merged (if there is no a plurality of code words of descending sub frame carrying, do not need to carry out this step), then a part of descending sub frame in determining every group, feedback information corresponding to code word to this part descending sub frame carrying merges processing, then the feedback information corresponding to code word of remaining descending sub frame carrying merged processing in every group, just obtain two feedback informations that merge after processing in such one group.
Referring to Fig. 4 B, suppose that descending sub frame corresponding to this group is numbered 3, one total N descending carriers, some descending sub frames carry two code words, first code word 1 and code word 2 are merged processing, then with the 1st to the
Descending sub frame in individual descending carrier is numbered 3 feedback information corresponding to descending sub frame and merges and process that to obtain an ACK/NACK (be b
0), with
Descending sub frame in N the descending carrier is numbered 3 feedback information corresponding to descending sub frame and merges and process that to obtain an ACK/NACK (be b
1), such one group will to obtain two ACK/NACK after merging (be b
0And b
1).
The third mode: second merges processing module 330 merges the feedback information corresponding to code word of same code word numbering in a group.
Concrete, if do not carry the descending sub frame of a plurality of code words in one group, think that the label of all code words is all 1, feedback information corresponding to all code words in a group merged.
Referring to Fig. 4 C, suppose that descending sub frame corresponding to this group is numbered 3, one total N descending carriers, the descending sub frame in the 1st to N descending carrier is numbered 3 feedback information corresponding to descending sub frame and merges processing to obtain an ACK/NACK (be b
0).
If the descending sub frame of a plurality of code words of carrying is arranged in one group, also just say so, descending sub frame has carried a plurality of data flow, process a plurality of code words that a rear descending sub frame will be corresponding, second merges processing module 330 feedback information corresponding to code word of same code word numbering in a group is merged.
Referring to Fig. 4 D, suppose that descending sub frame corresponding to this group is numbered 3, one total N descending carrier, feedback information corresponding to code word that the descending sub frame in the 1st to N descending carrier is numbered all code words 1 of 3 merge processing, and to obtain an ACK/NACK (be b
0), feedback information corresponding to code word that the descending sub frame in the 1st to N descending carrier is numbered all code words 2 of 3 merges processes that to obtain an ACK/NACK (be b
1), such one group will to obtain two ACK/NACK after merging (be b
0And b
1).
Be that first time domain merges the frequency domain merging again if merge the mode of processing, first merges processing module 310 after having carried out time domain merging processing, and the feedback information after the every group of corresponding merging that obtains processed merges processing again.
Concrete, due to after time domain finishes dealing with, can obtain a plurality of feedback informations (1 to 2 feedback information of every group of correspondence), more a plurality of feedback informations are merged processing, thereby just obtain a feedback information that merges after processing.
Here a plurality of feedback informations after time domain can being finished dealing with carry out logic and " add " processing, thereby obtain a feedback information that merges after processing.
Can certainly adopt other to merge processing mode, but must guarantee to satisfy the requirement that merges processing rule.
Be that first frequency domain merges the time domain merging again if merge the mode of processing, second merges processing module 330 after having carried out time domain merging processing, and the feedback information after the every group of corresponding merging that obtains processed merges processing again.
Concrete, due to after frequency domain finishes dealing with, can obtain a plurality of feedback informations (1 to 2 feedback information of every group of correspondence), more a plurality of feedback informations are merged processing, thereby just obtain a feedback information that merges after processing.
Here a plurality of feedback informations after time domain can being finished dealing with carry out logic and " add " processing, thereby obtain a feedback information that merges after processing.
Can certainly adopt other to merge processing mode, but must guarantee to satisfy the requirement that merges processing rule.
Be that first time domain merges frequency domain multiplexing again if merge the mode of processing, after the first feedback information corresponding to code word that merges the descending sub frame carrying of processing module 310 in respectively to every group merges processing, before sending module 40 sends feedback information, feedback information after the every group of corresponding merging that obtains processed carries out frequency domain multiplexing to be processed, and obtains feedback signal.
The mode of frequency domain multiplexing has a variety of, no matter which kind of mode all needs to guarantee the rule of following frequency domain multiplexing:
1, the feedback signal that generates through frequency domain multiplexing must have single-carrier property (being that feedback signal takies the single carrier wave frequency range);
2, need to guarantee that the base station has reliable detection performance (such as adopting the low-order-modulated mode) to feedback signal, guarantee namely (no matter being that terminal is in where feedback signal can be sent to the base station in the residential quarter) transmitted and had similar coverage to uplink feedback transmission and active data;
3, guarantee that the base station can detect feedback information (being ACK/NACK) on a plurality of descending carriers according to feedback signal.
In frequency domain multiplexing, the ACK/NACK that the ACK/NACK on a plurality of carrier waves is considered as on former subframe gets final product.
Be that first frequency domain merges time-domain multiplexed again if merge the mode of processing, after the second feedback information corresponding to code word that merges the descending sub frame carrying of processing module 330 in respectively to every group merges processing, before sending module 40 sends feedback information, feedback information after the every group of corresponding merging that obtains processed carries out frequency domain multiplexing to be processed, and obtains feedback signal.
The mode of time-domain multiplexed has a variety of, no matter which kind of mode all needs to guarantee the rule of following time-domain multiplexed:
1, the feedback signal that generates through time-domain multiplexed must have single-carrier property (being that feedback signal takies the single carrier wave frequency range);
2, need to guarantee that the base station has reliable detection performance (such as adopting the low-order-modulated mode) to feedback signal, guarantee namely (no matter being that terminal is in where feedback signal can be sent to the base station in the residential quarter) transmitted and had similar coverage to uplink feedback transmission and active data;
3, guarantee that the base station can detect feedback information (being ACK/NACK) on a plurality of descending carriers according to feedback signal.
Be that time domain merges if merge the mode of processing, the feedback information after sending module 40 is processed every group of corresponding merging sends by the continuous sub-frame of uplink of up-link carrier.
Wherein, the feedback information after one group of corresponding merging is processed sends by a sub-frame of uplink of up-link carrier.
Be that frequency domain merges if merge the mode of processing, the feedback information after sending module 40 is processed every group of corresponding merging sends by the sub-frame of uplink of up-link carrier.
Wherein, the feedback information after one group of corresponding merging is processed sends by a sub-frame of uplink of up-link carrier.
Merge frequency domain again and merge if merge the mode of processing and be first time domain, sending module 40 will merge the continuous sub-frame of uplink transmission of feedback information by up-link carrier after processing.
Wherein, the feedback information after merging is processed sends by a sub-frame of uplink of up-link carrier.
Because a sub-frame of uplink can carry 2 Bit datas, all are for b
0And b
1(b
0And b
1Be respectively 1 bit) can send by a sub-frame of uplink.
In specific implementation process, the feedback information that sending module 40 first will merge after processing converts feedback signal to.
The mode that converts feedback information to feedback signal has a variety of, no matter which kind of mode all needs to guarantee following conversion process rule:
1, the feedback signal after conversion process has single-carrier property (being that feedback signal takies the single carrier wave frequency range);
2, need to guarantee that the base station has reliable detection performance (such as adopting the low-order-modulated mode) to feedback signal, guarantee namely (no matter being that terminal is in where feedback signal can be sent to the base station in the residential quarter) transmitted and had similar coverage to uplink feedback transmission and active data.
Such as feedback information being modulated through BPSK modulation or QPSK, obtain a modulation symbol, this modulation symbol is become a single carrier broadcast signal (being feedback signal) after twice spread spectrum (first use cyclically shifted sequences to carry out spread spectrum on frequency domain, re-use orthogonal sequence and carrying out spread spectrum on time domain) processed.
Sending module 40 determines to merge descending sub frame corresponding to feedback information after processing, because the feedback information that merges after processing is to be merged to process by feedback information corresponding to a plurality of descending sub frames to obtain, so the feedback information that merges after processing can corresponding a plurality of descending sub frames.
Sending module 40 is determined the feedback channel in sub-frame of uplink corresponding to descending sub frame again, thereby determines to merge the feedback channel in sub-frame of uplink corresponding to feedback signal that the feedback information after processing converts to.
The corresponding feedback channel of each descending sub frame, the feedback information that merges like this processing will corresponding a plurality of feedback channels, at this moment can select at random a feedback channel or select a feedback channel (basis for selecting can be set as required) according to predefined basis for selecting.
For the FDD system, because the number of sub-frame of uplink in system and descending sub frame is identical, so each descending sub frame can be looked for a sub-frame of uplink corresponding with it, and then determine corresponding feedback channel from the sub-frame of uplink of determining;
For the TDD system, because there are the various configurations ratio in sub-frame of uplink and descending sub frame, need according to table 1, determine the sub-frame of uplink that each descending sub frame is corresponding, and then determine corresponding feedback channel from the sub-frame of uplink of determining.
The regulation of the up direction feedback of table 1 downlink transfer
Sending module 40 is last sends feedback signal by the feedback channel in the sub-frame of uplink of determining.
Be that first time domain merges the frequency domain merging first again if merge the mode of processing, sending module 40 is according to the content of feedback information and the corresponding relation of the feedback channel in sub-frame of uplink, determines to merge the feedback channel of sub-frame of uplink corresponding to the content of the feedback information after processing.
Wherein, the feedback information after merging is processed sends by a sub-frame of uplink of up-link carrier.
Because a sub-frame of uplink can carry 2 Bit datas, all are for b
0And b
1(b
0And b
1Be respectively 1 bit) can send by a sub-frame of uplink.
In specific implementation process, determine to merge the feedback channel of sub-frame of uplink corresponding to the content of the feedback information after processing according to the corresponding relation of the feedback channel in the content of the quantity of descending carrier, feedback information and sub-frame of uplink.
Wherein, the corresponding relation of the content of the quantity of descending carrier, feedback information and the feedback channel in sub-frame of uplink can preset as required.Accordingly, the base station first determines by which feedback channel to be received after receiving feedback information, and then according to the content of feedback information in conjunction with the content of feedback information and the corresponding relation of the feedback channel in sub-frame of uplink, need just can determine whether to retransmit.
(being b (0) and b (1)) describes n to the below take feedback information as 2 bits
UL, mBe the feedback letter Taoist monastic name.
Table 2, table 3 and table 4 are that the quantity of descending carrier is respectively 2,3 and at 4 o'clock, the content of feedback information and the corresponding relation of feedback channel.
| |
n UL，m | b(0)，b(1) | ||
| ACK， | n | UL，1 | 1，1 | |
| ACK, NACK/DTX (expression does not detect any information) | |
0，1 | ||
| NACK/DTX，ACK | n UL，1 | 0，0 | ||
| NACK/DTX， | n | UL，1 | 1，0 | |
| NACK， | n | UL，0 | 1，0 | |
| DTX，DTX | N/A | N/A |
The number of table 2 descending carrier
| |
n UL，m | b(0)，b(1) | ||
| ACK，ACK， | n | UL，2 | 1，1 | |
| ACK，ACK，NACK/ | n | UL，1 | 1，1 | |
| ACK，NACK/DTX， | n | UL，0 | 1，1 | |
| ACK，NACK/DTX，NACK/ | n | UL，0 | 0，1 | |
| NACK/DTX，ACK， | n | UL，2 | 1，0 | |
| NACK/DTX，ACK，NACK/DTX | n UL，1 | 0，0 | ||
| NACK/DTX，NACK/DTX，ACK | n UL，2 | 0，0 | ||
| DTX，DTX， | n | UL，2 | 0，1 |
| DTX，NACK，NACK/ | n | UL，1 | 1，0 |
| NACK，NACK/DTX，NACK/ | n | UL，0 | 1，0 |
| DTX，DTX，DTX | N/A | N/A |
The quantity of table 3 descending carrier is
| Descending carrier 1, descending carrier 2, descending carrier 3, descending carrier 4 | n UL，m | b(0)，b(1) |
| ACK，ACK，ACK，ACK | n UL，1 | 1，1 |
| ACK，ACK，ACK，NACK/DTX | n UL，1 | 1，0 |
| NACK/DTX，NACK/DTX，NACK，DTX | n UL，2 | 1，1 |
| ACK，ACK，NACK/DTX，ACK | n UL，1 | 1，0 |
| NACK，DTX，DTX，DTX | n UL，0 | 1，0 |
| ACK，ACK，NACK/DTX，NACK/DTX | n UL，1 | 1，0 |
| ACK，NACK/DTX，ACK，ACK | n UL，3 | 0，1 |
| NACK/DTX，NACK/DTX，NACK/DTX，NACK | n UL，3 | 1，1 |
| ACK，NACK/DTX，ACK，NACK/DTX | n UL，2 | 0，1 |
| ACK，NACK/DTX，NACK/DTX，ACK | n UL，0 | 0，1 |
| ACK，NACK/DTX，NACK/DTX，NACK/DTX | n UL，0 | 1，1 |
| NACK/DTX，ACK，ACK，ACK | n UL，3 | 0，1 |
| NACK/DTX，NACK，DTX，DTX | n UL，1 | 0，0 |
| NACK/DTX，ACK，ACK，NACK/DTX | n UL，2 | 1，0 |
| NACK/DTX，ACK，NACK/DTX，ACK | n UL，3 | 1，0 |
| NACK/DTX，ACK，NACK/DTX，NACK/DTX | n UL，1 | 0，1 |
| NACK/DTX，NACK/DTX，ACK，ACK | n UL，3 | 0，1 |
| NACK/DTX，NACK/DTX，ACK，NACK/DTX | n UL，2 | 0，0 |
| NACK/DTX，NACK/DTX，NACK/DTX，ACK | n UL，3 | 0， |
| DTX，DTX，DTX，DTX | N/A | NA |
The quantity of table 4 descending carrier
Need to prove, merging the mode of processing merges if first frequency domain merges time domain again, to merge the processing mode of the sending module 40 of frequency domain in merging similar again for the processing mode of sending module 40 and above-described first time domain, just the quantity of the descending carrier in table 2～table 4 is the subframe numbering of descending sub frame, repeats no more.
As shown in Figure 5, the method for embodiment of the present invention transmission feedback information comprises the following steps:
Wherein, if two data flow of the descending sub frame of descending carrier carrying are carried out decoding to two code words (code word 1 and code word 2) in each data flow respectively and are processed.
A plurality of descending carriers of receiving can make interior a plurality of descending carriers of receiving of a period of time of setting; Can be also a plurality of descending carriers of receiving simultaneously.
Wherein, if in step 501, to the codeword decoding success, feedback information corresponding to this code word is ACK; Accordingly, if in step 501, to the codeword decoding failure, feedback information corresponding to this code word is NACK.
If two code words of descending sub frame carrying, this descending sub frame just has two feedback informations.
Wherein, in step 502, the mode that feedback information is merged processing has a variety of, no matter which kind of merging mode all needs to guarantee following merging processing rule:
1, the feedback information that merges after processing can only have two state: ACK, NACK;
When the feedback information that 2, merges processing all was ACK, the feedback information that merges after processing was ACK;
3, the feedback information that merges processing is all NACK, and when not reaching the number of retransmissions of setting, the feedback information that merges after processing is NACK.
If merging the feedback information of processing is partly ACK, part is NACK, and the feedback information of selecting as required to merge after processing is ACK or NACK.
Be not ACK entirely such as setting the feedback information that merges processing, and when not reaching the number of retransmissions of setting, the feedback information that merges after processing is NACK;
Can also set when the ACK of the feedback information that merges processing quantity is not less than NACK, the feedback information that merges after processing is ACK, less than NACK, and when not reaching the number of retransmissions of setting, the feedback information that merges after processing is NACK when the ACK of the feedback information that merges processing quantity.
Need to prove, the feedback information that merges processing is partly ACK, and part is the situation of NACK, is not limited to several processing mode above-mentioned, as long as can determine finally that the mode of the content of the feedback information after merging is processed all is suitable for the present embodiment.
The below is in mode that merge to process as time domain merges, frequency domain merges, first time domain merges that frequency domain merges again, first frequency domain merges that time domain merges, first time domain merges frequency domain multiplexing again again and first frequency domain merges six kinds of modes of time-domain multiplexed again and describes respectively.
Be that time domain merges (bundling) if merge the mode of processing, step 502 can further include:
Step a502, the descending sub frame of all descending carriers is divided into groups, the descending sub frame in each group is the descending sub frame in same descending carrier.
Here be that the descending sub frame in same descending carrier is divided into one group, if X descending carrier arranged, can be divided into accordingly the X group.
Step b502, respectively the feedback information corresponding to code word of the carrying of the descending sub frame in every group merged processing, obtain the feedback information after every group of corresponding merging processed.
Here the feedback information corresponding to code word of the carrying of the descending sub frame in a group can be carried out logic and " add " processing, thereby obtain one group of feedback information that descending carrier is corresponding; If X descending carrier arranged, can obtain X group feedback information.
Can certainly adopt other to merge processing mode, but must guarantee to satisfy the requirement that merges processing rule.
If C
iBe the maximum number of the code word transmitted in M subframe in descending carrier i, wherein i ∈ 0,1 ..., M-1} will obtain C on each descending carrier
iACK/NACK after individual merging (is b
i).Referring to Fig. 3 A, will obtain C on each descending carrier
MACK/NACK after individual merging (is b
0).
If the descending sub frame of a plurality of code words of carrying is arranged in one group, also just say so, descending sub frame has carried a plurality of data flow, processes a plurality of code words that a rear descending sub frame will be corresponding, in step b502, the feedback information corresponding to code word of same code word numbering in a group merged.
Such as descending sub frame has carried two data flow, process two code words (being code word 1 and code word 2) that a rear descending sub frame will be corresponding, in one group, the feedback information that the code word of all code words 1 is corresponding merges, the feedback information that the code word of all code words 2 is corresponding merges, and such one group will to obtain two ACK/NACK after merging (be b
0And b
1), referring to Fig. 3 B.
If in one group, not every descending sub frame has two code words, merge processing mode also identical with mode in Fig. 3 B, just b
0And b
1The quantity of the feedback information that middle participation merges is not identical.
Be that frequency domain merges (bundling) if merge the mode of processing, step 502 can further include:
Step c502, the descending sub frame of all descending carriers is divided into groups, the subframe numbering of the descending sub frame in each group is identical.
Here be that the identical descending sub frame of all descending carrier neutron frame numbers is divided into one group, if X subframe arranged in descending carrier, can be divided into accordingly the X group.
Here the feedback information corresponding to code word of the carrying of the descending sub frame in a group can be carried out logic and " add " processing, thereby obtain one group of feedback information that descending carrier is corresponding; If X descending carrier arranged, can obtain X group feedback information.
Can certainly adopt other to merge processing mode, but must guarantee to satisfy the requirement that merges processing rule.
In steps d 502, merge mode for frequency domain and enumerating three kinds of modes here.
First kind of way: respectively the feedback information corresponding to code word of all descending sub frames carryings in every group merged processing, obtain the feedback information after every group of corresponding merging processed.
Concrete, if a plurality of code words of descending sub frame carrying, first take descending sub frame as unit, the feedback information corresponding to a plurality of code words of descending sub frame carrying merged (if there is no a plurality of code words of descending sub frame carrying, do not need to carry out this step), then the feedback information corresponding to code word of all descending sub frames carryings in every group merged processing.
Referring to Fig. 4 A, suppose that descending sub frame corresponding to this group is numbered 3, one total N descending carrier, two code words of some descending sub frame carryings, first code word 1 and code word 2 are merged processing, and then the descending sub frame in the 1st to N descending carrier is numbered 3 feedback information corresponding to descending sub frame merges and process that to obtain an ACK/NACK (be b
0).
The second way: determine at least one descending sub frame in every group, feedback information corresponding to code word that the descending sub frame of determining is carried merges processing, and feedback information corresponding to code word that the remaining descending sub frame in every group is carried merges processing.
Concrete, if a plurality of code words of descending sub frame carrying, first take descending sub frame as unit, the feedback information corresponding to a plurality of code words of descending sub frame carrying merged (if there is no a plurality of code words of descending sub frame carrying, do not need to carry out this step), then a part of descending sub frame in determining every group, feedback information corresponding to code word to this part descending sub frame carrying merges processing, then the feedback information corresponding to code word of remaining descending sub frame carrying merged processing in every group, just obtain two feedback informations that merge after processing in such one group.
Referring to Fig. 4 B, suppose that descending sub frame corresponding to this group is numbered 3, one total N descending carriers, some descending sub frames carry two code words, first code word 1 and code word 2 are merged processing, then with the 1st to the
Descending sub frame in individual descending carrier is numbered 3 feedback information corresponding to descending sub frame and merges and process that to obtain an ACK/NACK (be b
0), with
Descending sub frame in N the descending carrier is numbered 3 feedback information corresponding to descending sub frame and merges and process that to obtain an ACK/NACK (be b
1), such one group will to obtain two ACK/NACK after merging (be b
0And b
1).
The third mode: the feedback information corresponding to code word of same code word numbering in a group merged.
Concrete, if do not carry the descending sub frame of a plurality of code words in one group, think that the label of all code words is all 1, feedback information corresponding to all code words in a group merged.
Referring to Fig. 4 C, suppose that descending sub frame corresponding to this group is numbered 3, one total N descending carriers, the descending sub frame in the 1st to N descending carrier is numbered 3 feedback information corresponding to descending sub frame and merges processing to obtain an ACK/NACK (be b
0).
If the descending sub frame of a plurality of code words of carrying is arranged in one group, also just say so, descending sub frame has carried a plurality of data flow, processes a plurality of code words that a rear descending sub frame will be corresponding, in steps d 502, the feedback information corresponding to code word of same code word numbering in a group merged.
Referring to Fig. 4 D, suppose that descending sub frame corresponding to this group is numbered 3, one total N descending carrier, feedback information corresponding to code word that the descending sub frame in the 1st to N descending carrier is numbered all code words 1 of 3 merge processing, and to obtain an ACK/NACK (be b
0), feedback information corresponding to code word that the descending sub frame in the 1st to N descending carrier is numbered all code words 2 of 3 merges processes that to obtain an ACK/NACK (be b
1), such one group will to obtain two ACK/NACK after merging (be b
0And b
1).
Be that first time domain merges the frequency domain merging again if merge the mode of processing, in step b502, after having carried out time domain merging processing, the feedback information after the every group of corresponding merging that obtains processed merges processing again.
Concrete, due to after time domain finishes dealing with, can obtain a plurality of feedback informations (1 to 2 feedback information of every group of correspondence), more a plurality of feedback informations are merged processing, thereby just obtain a feedback information that merges after processing.
Here a plurality of feedback informations after time domain can being finished dealing with carry out logic and " add " processing, thereby obtain a feedback information that merges after processing.
Can certainly adopt other to merge processing mode, but must guarantee to satisfy the requirement that merges processing rule.
Be that first frequency domain merges the time domain merging again if merge the mode of processing, in steps d 502, after having carried out time domain merging processing, the feedback information after the every group of corresponding merging that obtains processed merges processing again.
Concrete, due to after frequency domain finishes dealing with, can obtain a plurality of feedback informations (1 to 2 feedback information of every group of correspondence), more a plurality of feedback informations are merged processing, thereby just obtain a feedback information that merges after processing.
Here a plurality of feedback informations after time domain can being finished dealing with carry out logic and " add " processing, thereby obtain a feedback information that merges after processing.
Can certainly adopt other to merge processing mode, but must guarantee to satisfy the requirement that merges processing rule.
Be that first time domain merges frequency domain multiplexing again if merge the mode of processing, in step b502, after the feedback information corresponding to code word of the descending sub frame carrying in respectively to every group merges processing, feedback information after the every group of corresponding merging that obtains processed carries out frequency domain multiplexing to be processed, and obtains feedback signal.
The mode of frequency domain multiplexing has a variety of, no matter which kind of mode all needs to guarantee the rule of following frequency domain multiplexing:
1, the feedback signal that generates through frequency domain multiplexing must have single-carrier property (being that feedback signal takies the single carrier wave frequency range);
2, need to guarantee that the base station has reliable detection performance (such as adopting the low-order-modulated mode) to feedback signal, guarantee namely (no matter being that terminal is in where feedback signal can be sent to the base station in the residential quarter) transmitted and had similar coverage to uplink feedback transmission and active data;
3, guarantee that the base station can detect feedback information (being ACK/NACK) on a plurality of descending carriers according to feedback signal.
In frequency domain multiplexing, the ACK/NACK that the ACK/NACK on a plurality of carrier waves is considered as on former subframe gets final product.
Be that first frequency domain merges time-domain multiplexed again if merge the mode of processing, in steps d 502, after the feedback information corresponding to code word of the descending sub frame carrying in respectively to every group merges processing, feedback information after the every group of corresponding merging that obtains processed carries out frequency domain multiplexing to be processed, and obtains feedback signal.
The mode of time-domain multiplexed has a variety of, no matter which kind of mode all needs to guarantee the rule of following time-domain multiplexed:
1, the feedback signal that generates through time-domain multiplexed must have single-carrier property (being that feedback signal takies the single carrier wave frequency range);
2, need to guarantee that the base station has reliable detection performance (such as adopting the low-order-modulated mode) to feedback signal, guarantee namely (no matter being that terminal is in where feedback signal can be sent to the base station in the residential quarter) transmitted and had similar coverage to uplink feedback transmission and active data;
3, guarantee that the base station can detect feedback information (being ACK/NACK) on a plurality of descending carriers according to feedback signal.
Be that time domain merges if merge the mode of processing, in step 503, the feedback information after every group of corresponding merging processed sends by the continuous sub-frame of uplink of up-link carrier.
Wherein, the feedback information after one group of corresponding merging is processed sends by a sub-frame of uplink of up-link carrier.
Be that frequency domain merges if merge the mode of processing, in step 503, the feedback information after every group of corresponding merging processed sends by the sub-frame of uplink of up-link carrier.
Wherein, the feedback information after one group of corresponding merging is processed sends by a sub-frame of uplink of up-link carrier.
Be that first time domain merges the frequency domain merging again if merge the mode of processing, in step 503, the feedback information after merging is processed sends by the continuous sub-frame of uplink of up-link carrier.
Wherein, the feedback information after merging is processed sends by a sub-frame of uplink of up-link carrier.
Because a sub-frame of uplink can carry 2 Bit datas, all are for b
0And b
1(b
0And b
1Be respectively 1 bit) can send by a sub-frame of uplink.
Concrete, step 503 can further include:
Step a503, the feedback information that first will merge after processing convert feedback signal to.
The mode that converts feedback information to feedback signal has a variety of, no matter which kind of mode all needs to guarantee following conversion process rule:
1, the feedback signal after conversion process has single-carrier property (being that feedback signal takies the single carrier wave frequency range);
2, need to guarantee that the base station has reliable detection performance (such as adopting the low-order-modulated mode) to feedback signal, guarantee namely (no matter being that terminal is in where feedback signal can be sent to the base station in the residential quarter) transmitted and had similar coverage to uplink feedback transmission and active data.
Such as feedback information being modulated through BPSK modulation or QPSK, obtain a modulation symbol, this modulation symbol is become a single carrier broadcast signal (being feedback signal) after twice spread spectrum (first use cyclically shifted sequences to carry out spread spectrum on frequency domain, re-use orthogonal sequence and carrying out spread spectrum on time domain) processed.
Step b503, definite descending sub frame corresponding to feedback information that merges after processing.
Because the feedback information that merges after processing is to be merged to process by feedback information corresponding to a plurality of descending sub frames to obtain, so the feedback information that merges after processing can corresponding a plurality of descending sub frames.
Step c503, determine the feedback channel in sub-frame of uplink corresponding to descending sub frame, thereby determine to merge the feedback channel in sub-frame of uplink corresponding to feedback signal that the feedback information after processing converts to.
The corresponding feedback channel of each descending sub frame, the feedback information that merges like this processing will corresponding a plurality of feedback channels, at this moment can select at random a feedback channel or select a feedback channel (basis for selecting can be set as required) according to predefined basis for selecting.
For the FDD system, because the number of sub-frame of uplink in system and descending sub frame is identical, so each descending sub frame can be looked for a sub-frame of uplink corresponding with it, and then determine corresponding feedback channel from the sub-frame of uplink of determining;
For the TDD system, because there are the various configurations ratio in sub-frame of uplink and descending sub frame, need according to table 1, determine the sub-frame of uplink that each descending sub frame is corresponding, and then determine corresponding feedback channel from the sub-frame of uplink of determining.
First time domain merges that frequency domain merges first again and frequency domain merges a kind of in the time domain merging again if merge the mode of processing and be, in step 503, according to the content of feedback information and the corresponding relation of the feedback channel in sub-frame of uplink, the feedback channel of the sub-frame of uplink that the content of the feedback information after definite merging is processed is corresponding
Wherein, the feedback information after merging is processed sends by a sub-frame of uplink of up-link carrier.
Because a sub-frame of uplink can carry 2 Bit datas, all are for b
0And b
1(b
0And b
1Be respectively 1 bit) can send by a sub-frame of uplink.
Concrete, in step 503, determine to merge the feedback channel of sub-frame of uplink corresponding to the content of the feedback information after processing according to the corresponding relation of the feedback channel in the content of the quantity of descending carrier, feedback information and sub-frame of uplink.
Wherein, the corresponding relation of the content of the quantity of descending carrier, feedback information and the feedback channel in sub-frame of uplink can preset as required.Accordingly, the base station first determines by which feedback channel to be received after receiving feedback information, and then according to the content of feedback information in conjunction with the content of feedback information and the corresponding relation of the feedback channel in sub-frame of uplink, need just can determine whether to retransmit.
(being b (0) and b (1)) describes n to the below take feedback information as 2 bits
UL, mBe the feedback letter Taoist monastic name.
Table 2, table 3 and table 4 are that the quantity of descending carrier is respectively 2,3 and at 4 o'clock, the content of feedback information and the corresponding relation of feedback channel.
Need to prove, merging the mode of processing merges if first frequency domain merges time domain again, the processing mode that merges again in the step 503 of frequency domain in merging of the processing mode in step 503 and above-described first time domain is similar, just the quantity of the descending carrier in table 2～table 4 is the subframe numbering of descending sub frame, repeats no more.
As shown in Figure 6, in the schematic diagram one that embodiment of the present invention FDD system is fed back, to M in each descending carrier continuously the ACK/NACK on descending sub frame carry out time domain and merge.
If last subframe in M the continuous descending sub frame that carries out the time domain merging is numbered n, the base station is T subframe lengths (T=4 in LTE Release 8) Zi receiving the uplink feedback signal to retransmitting the needed minimum treat time delay of transmission:
Feedback information on same carrier wave obtains a modulation symbol through modulation, and modulation symbol becomes single-carrier signal after the processing such as twice spread spectrum;
I (i ∈ 0,1 ..., the N-1}) feedback information on individual descending carrier will transmit on sub-frame of uplink n+T+i.
The channel number that uses of transmission can with carry out in M subframe that time domain merges, the descending control signaling resource number that belongs to this terminal on first subframe of the actual use of terminal is bound.
So the feedback signal of descending carrier 0 is transmitted on the sub-frame of uplink n+T of up-link carrier;
Similarly, the feedback signal of descending carrier N-1 is in the upper transmission of the sub-frame of uplink (n+T+N-1) of up-link carrier.
Need to prove, the mode that in the mode that the TDD system is fed back and schematic diagram one, the FDD system is fed back is similar, repeats no more.
As shown in Figure 7, in the schematic diagram two that embodiment of the present invention FDD system is fed back, in same descending sub frame, the ACK/NACK on N descending carrier carries out frequency domain and merges.
Set capable subframe and be numbered n,, the feedback information on same subframe obtains a modulation symbol through modulation, and modulation symbol becomes single-carrier signal after the processing such as twice spread spectrum;
Feedback information on descending sub frame n will transmit on sub-frame of uplink n+T.
The channel number that uses of transmission can with carry out in N carrier wave that frequency domain merges, the descending control signaling resource number that belongs to this terminal on first carrier wave of the actual use of terminal is bound.
So the feedback signal of descending sub frame n is transmitted on the sub-frame of uplink n+T of up-link carrier;
Similarly, the feedback signal of descending sub frame n+1 is in the upper transmission of the sub-frame of uplink (n+T+1) of up-link carrier.
Need to prove, the mode that in the mode that the TDD system is fed back and schematic diagram two, the FDD system is fed back is similar, repeats no more.
As shown in Figure 8, in the schematic diagram three that embodiment of the present invention FDD system is fed back, in each descending carrier, M continuously the ACK/NACK on descending sub frame carry out time domain and merge, and 1≤M＜N.
Then, the ACK/NACK on N descending carrier is divided into the M group in order, the quantity of every group of interior ACK/NACK is:
Wherein, N
fdd(i) be the quantity of ACK/NACK.
N in the i group
fdd(i) feedback information on descending carrier will transmit on sub-frame of uplink n+T+i.
Feedback information on a plurality of carrier waves in same group obtains a modulation symbol through modulation, and modulation symbol becomes single-carrier signal after the processing such as twice spread spectrum.
On first descending carrier, carry out in M subframe of time domain merging in the channel number that transmission is used can be organized with each, belong to the control signal resource number binding of this terminal on first subframe of the actual use of terminal.
So descending carrier 0 to descending carrier N
fddThe feedback signal of the feedback information conversion after merging (0) is transmitted on the sub-frame of uplink n+T of up-link carrier;
Similarly, descending carrier N-N
fdd(M-2) feedback signal of the conversion of the feedback information after the merging of descending carrier N-1 is in the upper transmission of the sub-frame of uplink (n+T+M-1) of up-link carrier.
As shown in 9, in the schematic diagram that embodiment of the present invention TDD system is fed back, each carrier wave is carried out time domain merge.
Be numbered n if carry out the subframe of uplink feedback transmission, descending sub frame n-k
iOn ACK/NACK will be merged into one group of (C
iBit) feedback information transmits in this subframe, wherein, i=0,1 ..., M-1, k ∈ K, K are the listed set of table 1.
On the N carrier wave, the feedback information after time domain merges carries out frequency domain and merges, obtain one group (
Bit) the feedback information ACK/NACK after the merging.
Feedback information obtains a modulation symbol through modulation, and modulation symbol becomes single-carrier signal after the processing such as twice spread spectrum, transmit on sub-frame of uplink n.
The channel number that uses of transmission can with first descending carrier on, carry out in M subframe that time domain merges, the control signal resource number that belongs to this terminal on first subframe of the actual use of terminal is bound.
Can find out from above-described embodiment: the embodiment of the present invention is carried out decoding to the code word of the descending sub frame carrying of each descending carrier in a plurality of descending carriers of receiving and is processed; According to the result that decoding is processed, determine the feedback information corresponding to code word of each descending sub frame carrying of each descending carrier; All feedback informations of determining are merged processing; The feedback information that merges after processing is sent by up-link carrier.Due in long-term evolution multi-carrier system, can feed back for the situation that the up-link carrier number is different with the descending carrier number, thereby improved system effectiveness, and this scheme is simple, easily implement, be applicable to FDD system and TDD system, thus can well with LTE Release 8 system compatibles.
Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of claim of the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. a method that sends feedback information, is characterized in that, the method comprises:
The code word of the descending sub frame of each descending carrier in a plurality of descending carriers of receiving carrying is carried out decoding to be processed;
According to the result that decoding is processed, determine the feedback information corresponding to code word of each descending sub frame carrying of each descending carrier;
Descending sub frame to all descending carriers divides into groups, and the descending sub frame in each group is that the descending sub frame in descending sub frame in same descending carrier or each group is the identical descending sub frame of different carrier neutron frame number;
For the descending sub frame in a group;
If do not carry the descending sub frame of a plurality of code words in this group, determine at least one descending sub frame in this group, feedback information corresponding to code word that the descending sub frame of determining is carried merges processing, feedback information corresponding to code word to the remaining descending sub frame carrying in this group merges processing, obtains the feedback information after merging corresponding to this group processed;
If the descending sub frame of a plurality of code words of carrying is arranged in this group, to a plurality of code words of same descending sub frame carrying respectively corresponding feedback information merge processing, will merge feedback information after processing as the feedback information corresponding to code word of this descending sub frame carrying; Feedback information corresponding to code word to the carrying of the descending sub frame in this group merges processing, obtains the feedback information after merging corresponding to this group processed; Or to a plurality of code words of same descending sub frame carrying respectively corresponding feedback information merge processing, will merge feedback information after processing as the feedback information corresponding to code word of this descending sub frame carrying; Determine at least one descending sub frame in this group, feedback information corresponding to code word that the descending sub frame of determining is carried merges processing; Feedback information corresponding to code word to the remaining descending sub frame carrying in this group merges processing, obtains the feedback information after merging corresponding to this group processed; Or the feedback information corresponding to code word of same code word numbering in a group merged, obtain the feedback information after merging processing corresponding to this group;
Feedback information after every group of corresponding merging processed sends by the continuous sub-frame of uplink of up-link carrier; Wherein, the feedback information after one group of corresponding merging is processed sends by a sub-frame of uplink of up-link carrier.
2. the method for claim 1, is characterized in that, after obtaining the feedback information after every group of corresponding merging processed, also comprises before the continuous sub-frame of uplink transmission of feedback information by up-link carrier after every group of corresponding merging processed:
Feedback information after the every group of corresponding merging that obtains processed merges processing again.
3. the method for claim 1, is characterized in that, after obtaining the feedback information after every group of corresponding merging processed, also comprises before the continuous sub-frame of uplink transmission of feedback information by up-link carrier after every group of corresponding merging processed:
Feedback information after the every group of corresponding merging that obtains processed carries out frequency domain multiplexing to be processed, and obtains feedback signal, and described feedback signal takies the single carrier wave frequency range;
The continuous sub-frame of uplink of described feedback information after every group of corresponding merging is processed by up-link carrier sends and comprises:
According to the content of feedback information and the corresponding relation of the feedback channel in sub-frame of uplink, the feedback channel of the sub-frame of uplink that the content of the feedback information after definite merging is processed is corresponding;
Send described feedback signal by the feedback channel in the sub-frame of uplink of determining.
4. the method for claim 1, is characterized in that, when the feedback information that merges processing was all response message ACK, the feedback information that merges after processing was ACK;
The feedback information that merges processing is all wrong responses information NACK, and when not reaching the number of retransmissions of setting, the feedback information that merges after processing is NACK.
5. the method for claim 1, is characterized in that, the continuous sub-frame of uplink of described feedback information after every group of corresponding merging is processed by up-link carrier sends and comprise:
Feedback information after every group of corresponding merging processed converts feedback signal to, and described feedback signal takies the single carrier wave frequency range;
Feedback channel in the sub-frame of uplink corresponding according to the descending sub frame in every group is determined the feedback channel in sub-frame of uplink corresponding to feedback signal that the feedback information of every group converts to;
Send described feedback signal by the feedback channel in the sub-frame of uplink of determining.
6. a terminal, is characterized in that, this terminal comprises:
Receiving processing module is used for that the code word of the descending sub frame carrying of a plurality of each descending carrier of descending carrier of receiving is carried out decoding and processes;
The information determination module is used for the result according to the decoding processing, determines the feedback information corresponding to code word of each descending sub frame carrying of each descending carrier;
Processing module is used for the descending sub frame of all descending carriers is divided into groups, and the descending sub frame in each group is that descending sub frame in same descending carrier or the descending sub frame in each group are the identical descending sub frames of different carrier neutron frame number;
Described processing module comprises that second merges processing module, and described second merges processing module for the descending sub frame for a group;
If do not carry the descending sub frame of a plurality of code words in this group, determine at least one descending sub frame in this group, feedback information corresponding to code word that the descending sub frame of determining is carried merges processing, feedback information corresponding to code word to the remaining descending sub frame carrying in this group merges processing, obtains the feedback information after merging corresponding to this group processed;
If the descending sub frame of a plurality of code words of carrying is arranged in this group, to a plurality of code words of same descending sub frame carrying respectively corresponding feedback information merge processing, will merge feedback information after processing as the feedback information corresponding to code word of this descending sub frame carrying; Feedback information corresponding to code word to the carrying of the descending sub frame in this group merges processing, obtains the feedback information after merging corresponding to this group processed; Or to a plurality of code words of same descending sub frame carrying respectively corresponding feedback information merge processing, will merge feedback information after processing as the feedback information corresponding to code word of this descending sub frame carrying; Determine at least one descending sub frame in this group, feedback information corresponding to code word that the descending sub frame of determining is carried merges processing; Feedback information corresponding to code word to the remaining descending sub frame carrying in this group merges processing, obtains the feedback information after merging corresponding to this group processed; Or the feedback information corresponding to code word of same code word numbering in a group merged, obtain the feedback information after merging processing corresponding to this group;
Sending module, the feedback information after being used for every group of corresponding merging processed sends by the continuous sub-frame of uplink of up-link carrier; Wherein, the feedback information after one group of corresponding merging is processed sends by a sub-frame of uplink of up-link carrier.
7. terminal as claimed in claim 6, is characterized in that, described processing module comprises that first merges processing module, and described first merges processing module is used for:
After described the second merging processing module obtained every group of feedback information after corresponding merging processing, before described sending module sent feedback information, the feedback information after the every group of corresponding merging that obtains processed merged processing again.
8. terminal as claimed in claim 6, is characterized in that, described processing module comprises that first merges processing module, and described first merges processing module also is used for:
After described the second merging processing module obtains every group of feedback information after corresponding merging processing, before described sending module sends feedback information, feedback information after the every group of corresponding merging that obtains processed carries out frequency domain multiplexing to be processed, obtain feedback signal, described feedback signal takies the single carrier wave frequency range;
Described sending module is used for:
According to the content of feedback information and the corresponding relation of the feedback channel in sub-frame of uplink, the feedback channel of the sub-frame of uplink that the content of the feedback information after definite merging is processed is corresponding sends described feedback signal by the feedback channel in the sub-frame of uplink of determining.
9. terminal as claimed in claim 6, is characterized in that, when the feedback information that merges processing was all response message ACK, the feedback information that merges after processing was ACK;
The feedback information that merges processing is all wrong responses information NACK, and when not reaching the number of retransmissions of setting, the feedback information that merges after processing is NACK.
10. terminal as claimed in claim 6, is characterized in that, described sending module is used for:
Feedback information after every group of corresponding merging processed converts feedback signal to, feedback channel in the sub-frame of uplink corresponding according to the descending sub frame in every group, determine the feedback channel in sub-frame of uplink corresponding to feedback signal that the feedback information of every group converts to, send described feedback signal by the feedback channel in the sub-frame of uplink of determining, described feedback signal takies the single carrier wave frequency range.
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| RU2568313C2 (en) * | 2010-09-28 | 2015-11-20 | Зте Корпарейшен | Method and user equipment for mapping ack/nack response messages |
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| CN102469506B (en) * | 2010-11-08 | 2014-06-11 | 华为技术有限公司 | Transmission method of response information, apparatuses and system |
| CN102104461B (en) * | 2011-03-25 | 2013-04-10 | 电信科学技术研究院 | Space merge configuration and response information feedback method, system and equipment |
| CN102223215B (en) * | 2011-06-23 | 2016-09-21 | 电信科学技术研究院 | The transmission method of ACK/NACK, method of reseptance and device thereof |
| CN103516501B (en) * | 2012-06-29 | 2017-05-03 | 电信科学技术研究院 | Method, system and device for sending and receiving feedback information |
| WO2019134140A1 (en) * | 2018-01-05 | 2019-07-11 | Oppo广东移动通信有限公司 | Method, apparatus and system for sending feedback response information and method, apparatus and system for receiving feedback response information |
| CN113661761B (en) * | 2019-09-30 | 2023-09-05 | Oppo广东移动通信有限公司 | Method and device for sending and receiving feedback information |
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