CN102437901B - Combined feedback method and device of uplink control information - Google Patents
Combined feedback method and device of uplink control information Download PDFInfo
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- CN102437901B CN102437901B CN201110460595.5A CN201110460595A CN102437901B CN 102437901 B CN102437901 B CN 102437901B CN 201110460595 A CN201110460595 A CN 201110460595A CN 102437901 B CN102437901 B CN 102437901B
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Abstract
The invention relates to the communication field and discloses a combined feedback method and device of uplink control information. The method comprises the following steps of: obtaining ACK(Acknowledgement)/NACK (Negative Acknowledgement) information and period CSI (Channel State Information) to be fed back and determining uplink sub-frames for bearing the ACK/NACK information and the period CSI; an performing block interleaving treatment on the ACK/NACK information and period CSI, and mapping interleaved data to a physical resource corresponding to a PUCCH (Physical Uplink Control Channel) in the uplink sub-frames and then feeding back the data to a network side, wherein in each time slot occupied by the physical resource corresponding to the PUCCH, the mapped ACK/NACK information is continuously arrayed and the mapped CIS is continuously arrayed. Therefore, according to the method and the device provided by the invention, the combined feedback of the ACK/NACK information and the CIS is realized and the frequency diversity effect in the process of sending the data is increased, so that the system performance is improved in the process of transmitting the ACK/NACK information and the CIS.
Description
Technical field
The present invention relates to the communications field, particularly a kind of associating feedback method and device of ascending control information.
Background technology
In LTE (Long Term Evolution, Long Term Evolution) system and original wireless communication system, during Yi Ge community is common, only have a carrier wave, for example, consult shown in Fig. 1, in LTE system, maximum bandwidth is 20MHz.
In LTE-A (LTE Advanced, the Long Term Evolution of development) system, the peak rate of system has huge raising than LTE, requires to reach descending 1Gbps, up 500Mbps.If only using carrier wave that a maximum bandwidth is 20MHz cannot reach peak rate requires.Therefore, LTE-A system needs the operable bandwidth of terminal extension, introduced thus CA (Carrier Aggregation, carrier aggregation) technology, be about to a plurality of continuous or discrete carrier aggregation under same eNB (base station) together, one simultaneously for UE service, so that required speed to be provided.These carrier waves that condense together are called again CC (component carrier, member carrier).Each community can be a member carrier, and different e NBXia community (being member carrier) can not polymerization.Consult shown in Fig. 2, in order to guarantee that the UE of LTE can work under the carrier wave of each polymerization, each carrier wave maximum is no more than 20MHz, as shown in Figure 2, under LTE-A base station, have 4 can polymerization carrier wave, base station can be simultaneously on 4 carrier waves and UE carry out transfer of data, to improve throughput of system.
On the other hand, according to related protocol standard regulation, in LTE-A Rel-10 system, support at most that 2 member carriers carry out polymerization, and in LTE-A Rel-11, maximum 5 member carriers of support are carried out to polymerization.
For FDD (Frequency Division Duplexing, Frequency Division Duplexing (FDD)) system, UE is downlink data receiving in subframe n-4, and whether the data of feeding back in sub-frame of uplink n on this descending sub frame need the signaling (being ACK/NACK information) retransmitting.During carrier aggregation, the ACK/NACK information that in subframe n-4, a plurality of descending carriers are corresponding is fed back the while in sub-frame of uplink n.
For TDD (Time Division Duplexing, time division duplex) system, UE may feed back the corresponding ACK/NACK information of a plurality of descending sub frames at same sub-frame of uplink, it is UE downlink data receiving in descending sub frame n-k, in sub-frame of uplink n, feed back corresponding ACK/NACK information, k ∈ K, the set value of K and the uplink-downlink configuration of system and concrete subframe are numbered relevant, specifically as shown in table 1.
Table 1
(Downlink?association?set?index?K：{k
0，k
1，…k
M-1}for?TDD)
Note: now, a plurality of radio frames are sequentially arranged, even in radio frames a, last subframe is k, in radio frames a+1, first subframe is k+1, table 1 take radio frames as example provided each sub-frame of uplink for the situation of K, 0 descending sub frame representing in last radio frames of n-k < wherein.
ACK/NACK information can be used PUCCH (Physical Uplink Control CHannel, Physical Uplink Control Channel) transmission, and the PUCCH form that exists various feedback mode, different feedback systems to use is also different.For example, can select the transmission method based on PUCCH form 1a/1b, the transmission method that can select the channel based on PUCCH form 1b to select, can also select the multiplex transmission method based on PUCCH form 3.Wherein, PUCCH form 1a/1b can carry 1 or 2 bit informations; Channel based on PUCCH form 1b is selected can carry 4 bit informations at most; The information content that PUCCH form 3 can carry is more, can carry at most 48 coded-bits.While using PUCCH form 3 transferring ACKs/nack message, concrete used PUCCH channel passes through signaling UE by base station.
On the other hand, in LTE system, UE also needs to base station feedback CSI (Channle State Information, channel condition information).Base station utilizes the CSI of UE feedback to carry out descending dynamic dispatching.
According to the difference of trigger mechanism, CSI is divided into two classes: the CSI that the CSI of periodic report and aperiodic report.The report cycle of cycle CSI and the side-play amount in the cycle are by base station by RRC (Radio Resource Control, radio resource control) the semi-static configuration of signaling, and UE transmits CSI according to configuration information in specific sub-frame of uplink.In the subframe without transmitting uplink data, periodic report CSI is used PUCCH transmission, and the PUCCH resource of transmission cycle CSI is by the semi-static configuration in base station.
In LTE-A Rel-10 carrier aggregation system, different members is carried CSI parameter separate configurations wave period, UE only feeds back the cycle CSI of a member carrier in each reports subframe, if the cycle CSI information of a plurality of member carriers bumps,, according to predetermined priority, feed back the cycle CSI that corresponding priority is the highest.
Aperiodic, CSI information from base station triggered by descending scheduling signaling, and UE only just carries out CSI and reports after receiving triggering signaling, and used PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) transmission CSI aperiodic.UE, according to the triggering situation of base station, can report CSI information aperiodic of a plurality of member carriers simultaneously.
In LTE system, whether base station supports to use the PUCCH ability of transferring ACK/NACK and CSI simultaneously by high-level signaling mode configuration UE, and for the terminal of transferring ACK/NACK and CSI simultaneously, when two signalings send collision, CSI information will be dropped.
In LTE-A Rel-10 carrier aggregation system, even if base station configuration UE simultaneously transferring ACK/NACK and CSI, when UE receives downlink data on a plurality of member carriers, if in this sub-frame of uplink without PUSCH, CSI information also will be dropped.Be that UE only receives downlink data on main carrier, and configuration is simultaneously when transferring ACK/NACK and CSI, ACK/NACK and CSI can be fed back to base station in PUCCH simultaneously.
And in LTE-A Rel-11 system, in order to improve the efficiency of system descending transmission, reduce the losing probability of cycle CSI, will support multicarrier ACK/NACK information and cycle CSI to feed back simultaneously.
But so far, in the time of for this two kinds of information, feedback, does not also propose concrete implementation, how ACK/NACK information and CSI information is independently carried out to coded modulation, how the symbol obtaining is shone upon to physical resource, also there is no clear and definite scheme.
Summary of the invention
The invention provides a kind of associating feedback method and device of ascending control information.In order to proposition, ACK/NACK information and CSI are combined to the specific implementation of feedback.
The concrete technical scheme that the embodiment of the present invention provides is as follows:
An associating feedback method for ascending control information, comprising:
Obtain ACK/NACK information to be feedback and channel condition information CSI;
Determine the sub-frame of uplink of the described ACK/NACK information of carrying and CSI;
Described ACK/NACK information and CSI are carried out to piecemeal interleaving treatment, and by the data-mapping after interweaving to physical resource corresponding to PUCCH in described sub-frame of uplink, feed back to again network side, wherein, in each time slot taking at a described physical resource corresponding to PUCCH, ACK/NACK information continuous arrangement after mapping, and the CSI continuous arrangement after mapping.
A processing method of combining feedback for ascending control information, comprising:
In the physical resource that PUCCH is corresponding in sub-frame of uplink, receiving terminal side send through the ACK/NACK of piecemeal interleaving treatment information and CSI;
To described, through the ACK/NACK of piecemeal interleaving treatment information and CSI, separate piecemeal interleaving treatment, obtain ACK/NACK information and the CSI of end side feedback.
An associating feedback device for ascending control information, comprising:
The first processing unit, for obtaining ACK/NACK information and CSI to be feedback, and the sub-frame of uplink of determining the described ACK/NACK information of carrying and CSI;
The second processing unit, for carrying out piecemeal interleaving treatment to described ACK/NACK information and CSI;
Communication unit, for by the data-mapping after interweaving to a physical resource that PUCCH is corresponding in described sub-frame of uplink, feed back to again network side, wherein, in each time slot taking at a described physical resource corresponding to PUCCH, ACK/NACK information continuous arrangement after mapping, and the CSI continuous arrangement after mapping.
A processing unit of combining feedback for ascending control information, comprising:
Communication unit, for a physical resource that PUCCH is corresponding in sub-frame of uplink, receiving terminal side send through the ACK/NACK of piecemeal interleaving treatment information and CSI;
Control unit, for separating piecemeal interleaving treatment to described through the ACK/NACK of piecemeal interleaving treatment information and CSI, obtains ACK/NACK information and the CSI of end side feedback.
In the embodiment of the present invention, resource mapping scheme when having provided a kind of ACK/NACK information and cycle CSI and transmitting simultaneously, being about to ACK/NACK information and cycle CSI carries out after piecemeal interleaving treatment, map in the physical resource that the interior PUCCH of sub-frame of uplink is corresponding and transmit, wherein, in each time slot taking at physical resource corresponding to this PUCCH, the ACK/NACK information continuous arrangement after mapping, and the CSI continuous arrangement after mapping.Like this, when realizing ACK/NACK information and combining feedback with CSI, increased frequency diversity effect when data send, thus the systematic function when having improved ACK/NACK information and CSI and transmitting simultaneously.
Accompanying drawing explanation
Fig. 1 is LTE system carrier dividing mode schematic diagram under prior art;
Fig. 2 is LTE-A system carrier dividing mode schematic diagram under prior art;
Fig. 3 is the mapping effect schematic diagram that interweaves in the embodiment of the present invention;
Fig. 4 is that in the embodiment of the present invention, terminal is combined process of feedback figure to ACK/NACK information and CSI.
Fig. 5-Figure 12 carries out the various ways schematic diagram of piecemeal interleaving treatment to ACK/NACK information and CSI in the embodiment of the present invention;
Figure 13 is that in the embodiment of the present invention, process chart is carried out to combining ACK/NACK information and the CSI of feedback in base station;
Figure 14 is termination function structural representation in the embodiment of the present invention;
Figure 15 is base station functions structural representation in the embodiment of the present invention.
Embodiment
In the embodiment of the present invention, provided a kind of specific implementation of ACK/NACK information and cycle CSI (hereinafter to be referred as CSI) being combined to feedback.This scheme is: when ACK/NACK information and CSI feed back in a sub-frame of uplink simultaneously, ACK/NACK information and CSI are carried out to piecemeal interleaving treatment, again the data-mapping after interweaving is transmitted in physical resource corresponding to PUCCH in this sub-frame of uplink, wherein, in each time slot taking at physical resource corresponding to this PUCCH, ACK/NACK information continuous arrangement after mapping, and the CSI continuous arrangement after mapping.
In practical application, the quantity of the physical resource that PUCCH is corresponding can be made corresponding adjustment according to concrete application scenarios, for example, a physical resource corresponding to PUCCH can be for taking a PRB pair (the Physical Resource Block of two time slots, Physical Resource Block to), also can be to take a plurality of PRB of two above time slots, for convenience of description, in following examples, the PRB pair of only take is introduced as example.
Consult shown in Fig. 3, generally, a subframe comprises two slot (time slot), and the running time-frequency resource that takies a time slot and take 12 subcarriers in time domain on frequency domain is called a PRB (Physical Resource Block, Physical Resource Block), because a subframe is that form with two time slots presents, therefore, in the present embodiment, physical resource corresponding to a PUCCH (Physical Uplink Control Channel) in sub-frame of uplink, can be called again a PRB pair.Therefore, in the present embodiment, so-called ACK/NACK information and CSI are interweaved with being mapped in two time slots of sub-frame of uplink transmit, be data uniform mapping after ACK/NACK information is interweaved with CSI transmits to PRB pair corresponding to PUCCH in sub-frame of uplink.As shown in Figure 3, the effect that reaches of mapping that interweaves is: between two time slots that take at a PRBpair corresponding to PUCCH, and the quantity approximately equal of the RE that ACK/NACK information takies (Resource Unit), and the quantity approximately equal of the RE that takies of CSI.
Below in conjunction with accompanying drawing, the preferred embodiment of the present invention is elaborated.
Consult shown in Fig. 4, in the embodiment of the present invention, terminal is carried out ACK/NACK information and CSI, and to combine the detailed process of feedback as follows:
Step 400: obtain ACK/NACK information and CSI to be feedback.
Step 410: the sub-frame of uplink of determining the above-mentioned ACK/NACK information of carrying and CSI.
Be specially: the sub-frame of uplink that can determine transferring ACK/nack message according to table 1; Transmission cycle reports the sub-frame of uplink of CSI by RRC signaling, to carry out semi-static configuration by high level.
Step 420: ACK/NACK information to be feedback and CSI are carried out to piecemeal interleaving treatment, and by the data-mapping after interweaving to physical resource corresponding to PUCCH in sub-frame of uplink, feed back to again network side, wherein, in each time slot taking at physical resource corresponding to this PUCCH, ACK/NACK information continuous arrangement after mapping, and the CSI continuous arrangement after mapping.
In the present embodiment, after execution step 410, before execution step 420, first respectively ACK/NACK information to be feedback and CSI are carried out to independently chnnel coding, then, performing step at 420 o'clock, can be to the cascade that interweaves of ACK/NACK coded message and CSI coded message, obtain a cascaded message sequence, again this modular cascade sequence is mapped in order in sub-frame of uplink in the PRB pair that PUCCH is corresponding, wherein, the cascade that interweaves is illustrated in when carrying out cascade processing and has also realized and having interweaved, specifically as shown in Figure 5; Or, also can carry out concatenated in order to ACK/NACK coded message and CSI coded message, and the modular cascade sequence obtaining is interweaved, obtain an interleaved sequence, again this interleaved sequence is mapped in order in sub-frame of uplink in the PRB Pair that PUCCH is corresponding, specifically as shown in Figure 6.
On the other hand, execution step 420 o'clock, so-calledly by the data-mapping after interweaving to PRB pair corresponding to PUCCH in sub-frame of uplink, refer to:
The ACK/NACK information that packet after interweaving is contained maps to respectively in each time slot that above-mentioned PRB pair takies, and the CSI that the packet after interweaving is contained maps to respectively in each time slot that above-mentioned PRB pair takies, wherein, in each time slot, ACK/NACK information continuous arrangement after mapping, and the CSI information continuous arrangement after mapping, it shines upon effect specifically as shown in Figure 3: after mapping, between each time slot taking at above-mentioned PRB pair, the quantity approximately equal of the RE that ACK/NACK information takies, the quantity of the RE taking with CSI is approximately equal also.
For the two schemes shown in Fig. 5 and Fig. 6, introduce four kinds of specific implementations (only, for for example, being not limited to this) below.
First kind of way is: first respectively ACK/NACK information waiting for transmission and CSI modulated, then by the cascade that interweaves of the ACK/NACK modulation symbol of acquisition and CSI modulation symbol.Be specially:
A1, ACK/NACK information is encoded and rate-matched obtains corresponding ACK/NACK coded message, and modulate and obtain ACK/NACK modulation symbol, again ACK/NACK modulation symbol is divided into two groups according to setting means, makes the number of two groups of ACK/NACK modulation symbols basically identical.
For example, A bit ACK/nack message is encoded and rate-matched, obtain nB bits of encoded information, be designated as a
1a
2a
3... a
nB, wherein n is order of modulation corresponding to ACK/NACK information, B is ACK/NACK number of modulation symbols, preferably, suppose n=2, QPSK (Quadrature Phase-ShiftKeying, Quadrature Phase Shift Keying) time, through modulation, obtain B ACK/NACK modulation symbol, be designated as
be divided into two groups, first group comprises
individual ACK/NACK modulation symbol, is designated as
second group comprises individual
symbol, is designated as
wherein,
and when i ≠ j,
for the operation that rounds up,
for rounding operation downwards.As can be seen here, the number of the ACK/NACK modulation symbol comprising in two groups is basically identical, differs and mostly is 1 most.
B1, CSI is encoded and rate-matched obtains corresponding CSI coded message, and modulate and obtain CSI modulation symbol, then CSI modulation symbol is divided into two groups according to setting means, make the number of two groups of CSI modulation symbols basically identical.
For example, C bit CSI is encoded and obtains mD bits of encoded information with rate-matched, be designated as b
1b
2... b
mD, wherein m is the order of modulation that CSI is corresponding, M is CSI number of modulation symbols, and transmission channel (as, the maximum modulation symbolic number that can carry in PUCCH) is B+D, preferably, supposes m=2, through modulating, obtains D CSI modulation symbol, is designated as
be divided into two groups, first group comprises
individual bit
one group comprises
bit
wherein,
and when i ≠ j,
as can be seen here, the number of the CSI modulation symbol comprising in two groups is basically identical, differs and mostly is 1 most.
In above-mentioned steps A1 and step B1, no matter be that ACK/NACK modulation symbol is divided into groups, or CSI modulation symbol is divided into groups, all can select one of following two kinds of modes (only, for for example, being not limited to this):
I, according to the sign bit order of ACK/NACK modulation symbol or CSI modulation symbol, be divided into approximately equalised two groups of number, for example, consulted shown in Fig. 7, can be in the following ways to above-mentioned two groups of ACK/NACK modulation symbol assignment:
i=1 wherein, 2 ... B; Meanwhile, can be in the following ways to each CSI modulation symbol assignment after grouping:
j=1 wherein, 2 ... D;
Ii, according to the sign bit parity of ACK/NACK modulation symbol or CSI modulation symbol, be divided into approximately equalised two groups of number, for example, consulted shown in Fig. 8, can be in the following ways to each ACK/NACK modulation symbol assignment after grouping: when
time,
otherwise,
wherein, i=1,2 ... B; Meanwhile, can be in the following ways to each CSI modulation symbol assignment after grouping: when
time, in the class symbol obtaining
otherwise
j=1 wherein, 2 ... D.
C1, by each group ACK/NACK modulation symbol with respectively organize the cascade that interweaves of CSI modulation symbol.
For example, consult shown in Fig. 4, according to first group of ACK/NACK modulation symbol, the cascade that interweaves of the order of first group of CSI modulation symbol, second group of ACK/NACK modulation symbol, second group of CSI modulation symbol, obtains cascaded message sequence.Be specially: by B ACK/NACK modulation symbol and D CSI modulation symbol cascade as follows, obtain the cascaded message sequence that comprises E=B+D modulation symbol
Certainly, also can carry out cascade according to the order of first group of CSI modulation symbol, first group of ACK/NACK modulation symbol, second group of CSI modulation symbol, second group of ACK/NACK modulation symbol, obtain cascaded message sequence, the first situation of only take in the present embodiment describes as example.
Now, terminal can (be just d by the cascaded message sequence obtaining
1d
2d
3... d
e) uniform mapping is to PRB pair corresponding to PUCCH in sub-frame of uplink, as, in the first time slot that first group of ACK/NACK modulation symbol and first group of CSI modulation symbol Continuous Mappings are taken to a PRB pair corresponding to PUCCH in sub-frame of uplink, simultaneously, in the second time slot that second group of ACK/NACK modulation symbol and second group of CSI modulation symbol Continuous Mappings are taken to a PRB pair corresponding to PUCCH in sub-frame of uplink, concrete effect is consulted shown in Fig. 3.
The second way is: first to ACK/NACK information waiting for transmission and the CSI cascade that interweaves, then to interweave after cascade ACK/NACK information and CSI modulate.Be specially:
A2, ACK/NACK information is encoded and rate-matched obtains corresponding ACK/NACK coded message, and ACK/NACK coded message is divided into two groups according to setting means, make the bit number of two groups of ACK/NACK coded messages basically identical.
For example, the encoded and rate-matched of A bit ACK/nack message is obtained to nB bits of encoded information, be designated as a
1a
2a
3... a
nB, wherein n is order of modulation corresponding to ACK/NACK information, and B is ACK/NACK number of modulation symbols, and ACK/NACK coded message is divided into two groups, and first group comprises
bit data, is designated as
second group comprises
bit data, is designated as
wherein
and when i ≠ j,
as can be seen here, the number of the ACK/NACK modulation symbol comprising in two groups is basically identical, differs and mostly is 1 most.
B2, CSI is encoded and rate-matched obtains corresponding CSI coded message, and CSI coded message is divided into two groups according to setting means, make the bit number of two groups of CSI coded messages basically identical.
For example, C bit CSI is encoded and obtains mD bits of encoded information with rate-matched, be designated as b
1b
2b
3... b
mD, wherein m is the order of modulation that CSI is corresponding, M is CSI number of modulation symbols, and transmission channel (as, the maximum modulation symbolic number that can carry in PUCCH) is B+D, and CSI coded message is divided into two groups, first group comprises
bit data, is designated as
second group comprises
bit data, is designated as
wherein,
and when i ≠ j,
as can be seen here, the number of the CSI modulation symbol comprising in two groups is basically identical, differs and mostly is 1 most.
In above-mentioned steps A2 and step B2, no matter be that ACK/NACK coded message is divided into groups, or CSI coded message is divided into groups, all can select one of following two kinds of modes (only, for for example, being not limited to this):
I, according to the bit order of ACK/NACK coded message or CSI coded message, be divided into approximately equalised two groups of number, for example, consulted shown in Fig. 7, can be by the following ways to above-mentioned two groups of ACK/NACK coded message assignment:
i=1 wherein, 2 ... nB; Meanwhile, can be in the following ways to each CSI coded message assignment after grouping:
j=1 wherein, 2 ... mD;
Ii, according to the bit parity of ACK/NACK coded message number or CSI coded message, be divided into approximately equalised two groups of number, for example, consulted shown in Fig. 8, can be in the following ways to each ACK/NACK coded message assignment after grouping: when
time,
otherwise,
wherein, i=1,2 ... nB; Meanwhile, can be in the following ways to each CSI coded message assignment after grouping: when
time, in the class symbol obtaining
otherwise
j=1 wherein, 2 ... mD.
C2, by each group ACK/NACK coded message with respectively organize the cascade that interweaves of CSI coded message, and modulate.
For example, consult shown in Fig. 4, according to first group of ACK/NACK coded message, the order of first group of CSI coded message, second group of ACK/NACK coded message, second group of CSI coded message is carried out cascade, and after modulating, obtains cascaded message sequence.Be specially: by nB bit ACK/NACK coded message and the cascade as follows of mD bit CSI coded message,
and by d
1d
2d
3... d
nB+mDmodulate, obtain d
1d
2d
3... d
e.
Certainly, also can be according to the cascade that interweaves of the order of first group of CSI coded message, first group of ACK/NACK coded message, second group of CSI coded message, second group of ACK/NACK coded message, and after modulation, obtaining cascaded message sequence, the first situation of only take in the present embodiment describes as example.
Now, terminal can (be just d by the cascaded message sequence obtaining
1d
2d
3... d
e) uniform mapping is to PRB pair corresponding to PUCCH in sub-frame of uplink, as, in the first time slot that first group of ACK/NACK modulation symbol and first group of CSI modulation symbol Continuous Mappings are taken to a PRB pair corresponding to PUCCH in sub-frame of uplink, simultaneously, in the second time slot that second group of ACK/NACK modulation symbol and first group of CSI modulation symbol Continuous Mappings are taken to a PRB pair corresponding to PUCCH in sub-frame of uplink, concrete effect is consulted shown in Fig. 3.
The third mode is: first ACK/NACK information and CSI are carried out to cascade, then ACK/NACK information and the CSI after cascade modulated, and modulation result is interweaved.Be specially:
A3, ACK/NACK information is encoded and rate-matched obtains corresponding ACK/NACK coded message.
For example, A bit ACK/nack message is encoded and obtained nB bits of encoded information with rate-matched, be designated as a
1a
2a
3... a
nB, wherein n is order of modulation corresponding to ACK/NACK information, B is ACK/NACK number of modulation symbols, and during QPSK, n=2.
B3, CSI is encoded and rate-matched obtains corresponding CSI coded message.
For example, C bit CSI is encoded and obtains mD bits of encoded information with rate-matched, be designated as b1b2b3...bmD, wherein m is the order of modulation that CSI is corresponding, M is CSI number of modulation symbols, and the maximum modulation symbolic number that can carry in a transmission channel (as PUCCH) is B+D.
C3, the ACK/NACK coded message of acquisition and CSI coded message are carried out to cascade and modulation.
For example, by obtaining the sequences of code bits (also referred to as cascaded message sequence) of nB+mD bit after the CSI coded message cascade of the ACK/NACK coded message of nB bit and mD bit, be designated as d
1d
2d
3... d
nB+mD=a
1a
2a
3... a
nBb
1b
2b
3... b
mD, more above-mentioned cascaded message is modulated, obtain modulation intelligence sequence
D3, the modulation intelligence sequence that obtains after modulation is interweaved.
When interweaving, can select one of following two kinds of modes (only, for for example, being not limited to this):
I, according to the sign bit of ACK/NACK modulation symbol in cascaded message symbol sebolic addressing and CSI modulation symbol, sequentially interweave.For example, consult shown in Fig. 9.
Ii, according to the sign bit parity of cascaded message symbol sebolic addressing, interweave, for example, consult shown in Figure 10.
Now, terminal just can be by the cascaded message sequence obtaining after interweaving (
uniform mapping is to PRB pair corresponding to PUCCH in sub-frame of uplink, be about in the first time slot and the second time slot that ACK/NACK modulation symbol after interweaving and CSI modulation symbol Continuous Mappings take to a PRB pair corresponding to PUCCH in sub-frame of uplink, the number approximately equal of the ACK/NACK modulation symbol of the PRB resource bearing that each time slot is corresponding, and the number approximately equal of the CSI modulation symbol of PRB resource bearing corresponding to each time slot, concrete effect is as shown in Figure 3.
The 4th kind of mode is: first ACK/NACK information and CSI are carried out to cascade, then ACK/NACK information and the CSI after cascade interweaved, and the result that interweaves is modulated.Be specially:
A4, ACK/NACK information is encoded and rate-matched obtains corresponding ACK/NACK coded message.
For example, A bit ACK/nack message is encoded and obtained nB bits of encoded information with rate-matched, be designated as a
1a
2a
3... a
nB, wherein n is order of modulation corresponding to ACK/NACK information, B is ACK/NACK number of modulation symbols, and during QPSK, n=2.
B4, CSI is encoded and rate-matched obtains corresponding CSI coded message.
For example, C bit CSI is encoded and obtains mD bits of encoded information with rate-matched, be designated as b
1b
2b
3... b
mD, wherein m is the order of modulation that CSI is corresponding, M is CSI number of modulation symbols, and the maximum modulation symbolic number that can carry in a transmission channel (as PUCCH) is B+D.
C4, the ACK/NACK coded message of acquisition and CSI coded message are carried out to cascade, obtain cascaded message sequence.
For example, by obtaining the sequences of code bits (also referred to as cascaded message sequence) of nB+mD bit after the CSI coded message cascade of the ACK/NACK coded message of nB bit and mD bit, be designated as d
1d
2d
3... d
nB+mD=a
1a
2a
3... a
nBb
1b
2b
3... b
mD.
D4, based on order of modulation corresponding to ACK/NACK information and order of modulation corresponding to CSI, above-mentioned cascaded message sequence is interweaved, obtain interleaved sequence e
1e
2e
3... e
nB+mD; Wherein, the principle interweaving is, after needs guarantee to modulate, can both not comprise ACK/NACK information and also comprise CSI information bit in a modulation symbol.
For achieving the above object, when interweaving, can select one of following two kinds of modes (only, for for example, being not limited to this):
I, the integral multiple of order of modulation corresponding to ACK/NACK information of take are unit, and the integral multiple of order of modulation corresponding to CSI information of take is unit, and sequentially interweaves according to the group position of each coded message group.It realizes effect as consulted as shown in Figure 10, and wherein n, m are respectively ACK/NACK information and the corresponding order of modulation of CSI,
Ii, the integral multiple of order of modulation corresponding to ACK/NACK information of take are unit, and the integral multiple of order of modulation corresponding to CSI information of take is unit, and interweaves according to the group bits parity of each coded message group.It realizes effect as shown in figure 11, and wherein, n, m are respectively ACK/NACK information and the corresponding order of modulation of CSI,
E, the interleaved sequence obtaining is modulated, obtained modulation sequence
Now, terminal just can be by the modulation sequence uniform mapping that obtains after modulation to PRB Pair corresponding to PUCCH in sub-frame of uplink, as, in the first time slot and the second time slot that ACK/NACK modulation symbol after modulation and CSI modulation symbol Continuous Mappings are taken to a PRB pair corresponding to PUCCH in sub-frame of uplink, the number approximately equal of the ACK/NACK modulation symbol of the PRB resource bearing that each time slot is corresponding, and the number approximately equal of the CSI modulation symbol of PRB resource bearing corresponding to each time slot, concrete effect is as shown in Figure 3.
Corresponding with above-described embodiment, to consult shown in Figure 13, base station side receives after the ACK/NACK information and CSI that terminal feeds back in the manner described above, and the flow process of processing is as follows:
Step 1300: in the physical resource that PUCCH is corresponding in sub-frame of uplink, receiving terminal side send through the ACK/NACK of piecemeal interleaving treatment information and CSI.
Step 1310: separate piecemeal interleaving treatment to what obtain through the ACK/NACK of piecemeal interleaving treatment information and CSI, obtain ACK/NACK information and the CSI of end side feedback.
Be specially: to what obtain, through the ACK/NACK of piecemeal interleaving treatment information and CSI, carry out deinterleaving cascade, like this, can directly obtain ACK/NACK information and the CSI of end side feedback, its process is contrary with the process shown in Fig. 5.
Or, to what obtain, through the ACK/NACK of piecemeal interleaving treatment information and CSI, carry out deinterleaving, obtain a modular cascade sequence, then from the modular cascade sequence obtaining, obtain ACK/NACK information and the CSI of end side feedback.
Based on above-described embodiment, consult shown in Figure 14 and Figure 15, in the embodiment of the present invention,
Terminal comprises communication unit 140, the first processing unit 141 and the second processing unit 142, wherein,
The first processing unit 141, for obtaining ACK/NACK information and CSI to be feedback, and the sub-frame of uplink of determining the described ACK/NACK information of carrying and CSI;
The second processing unit 142, for carrying out piecemeal interleaving treatment to above-mentioned ACK/NACK information and CSI;
Communication unit 140, for by the data-mapping after interweaving to a PRB pair that PUCCH is corresponding in sub-frame of uplink, feed back to again network side, wherein, in each time slot taking at physical resource corresponding to this PUCCH, ACK/NACK information continuous arrangement after mapping, and the CSI continuous arrangement after mapping.
Base station comprises communication unit 150 and control unit 151, wherein,
Communication unit 150, for a physical resource that PUCCH is corresponding in sub-frame of uplink, receiving terminal side send through the ACK/NACK of piecemeal interleaving treatment information and CSI;
Control unit 151, for separating piecemeal interleaving treatment to above-mentioned through the ACK/NACK of piecemeal interleaving treatment information and CSI, obtains ACK/NACK information and the CSI of end side feedback.
In sum, in the embodiment of the present invention, resource mapping scheme when having provided a kind of ACK/NACK information and cycle CSI and transmitting simultaneously, being about to ACK/NACK information and cycle CSI carries out after piecemeal interleaving treatment, map in the physical resource that the interior PUCCH of sub-frame of uplink is corresponding and transmit, wherein, in each time slot taking at physical resource corresponding to this PUCCH, ACK/NACK information continuous arrangement after mapping, and the CSI continuous arrangement after mapping.Like this, when realizing ACK/NACK information and combining feedback with CSI, increased frequency diversity effect when data send, thus the systematic function when having improved ACK/NACK information and CSI and transmitting simultaneously.
Obviously, those skilled in the art can carry out various changes and modification and not depart 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 the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (8)
1. an associating feedback method for ascending control information, is characterized in that, comprising:
Obtain correct/error ACK/NACK information to be feedback and channel condition information CSI;
Determine the sub-frame of uplink of the described ACK/NACK information of carrying and CSI;
Described ACK/NACK information and CSI are carried out to piecemeal interleaving treatment, and by the data-mapping after interweaving to physical resource corresponding to Physical Uplink Control Channel PUCCH in described sub-frame of uplink, feed back to again network side, wherein, in each time slot taking at a described physical resource corresponding to PUCCH, ACK/NACK information continuous arrangement after mapping, and the CSI continuous arrangement after mapping.
2. the method for claim 1, is characterized in that, before described ACK/NACK information and CSI are carried out to piecemeal interleaving treatment, first respectively ACK/NACK information and CSI is carried out to independently chnnel coding.
3. method as claimed in claim 2, is characterized in that, described ACK/NACK information and CSI are carried out to piecemeal interleaving treatment, and by the data-mapping after interweaving to physical resource corresponding to PUCCH in described sub-frame of uplink, comprising:
To the cascade that interweaves of ACK/NACK coded message and CSI coded message, obtain a cascaded message sequence, again this modular cascade sequence is mapped in order in described sub-frame of uplink in the physical resource that PUCCH is corresponding, wherein, the cascade that interweaves described in is illustrated in when carrying out cascade processing and has also realized and having interweaved;
Or,
ACK/NACK coded message and CSI coded message are carried out to concatenated in order, and the modular cascade sequence obtaining is interweaved, obtain an interleaved sequence, then this interleaved sequence is mapped in described sub-frame of uplink in the physical resource that PUCCH is corresponding in order.
4. the method as described in claim 1,2 or 3, is characterized in that, after mapping, and between each time slot taking at described physical resource, the quantity approximately equal of the Resource Unit RE that ACK/NACK information takies, and the quantity approximately equal of the RE that takies of CSI.
5. an associating feedback device for ascending control information, is characterized in that, comprising:
The first processing unit, for obtaining correct/error ACK/NACK information to be feedback and channel condition information CSI, and the sub-frame of uplink of determining the described ACK/NACK information of carrying and CSI;
The second processing unit, for carrying out piecemeal interleaving treatment to described ACK/NACK information and CSI;
Communication unit, for by the data-mapping after interweaving to a physical resource that Physical Uplink Control Channel PUCCH is corresponding in described sub-frame of uplink, feed back to again network side, wherein, in each time slot taking at a described physical resource corresponding to PUCCH, ACK/NACK information continuous arrangement after mapping, and the CSI continuous arrangement after mapping.
6. device as claimed in claim 5, is characterized in that, described the second processing unit first carries out independently chnnel coding to ACK/NACK information and CSI respectively before described ACK/NACK information and CSI are carried out to piecemeal interleaving treatment.
7. device as claimed in claim 6, it is characterized in that, described the second processing unit carries out piecemeal interleaving treatment to described ACK/NACK information and CSI, and described communication unit to physical resource corresponding to PUCCH in described sub-frame of uplink, comprises the data-mapping after interweaving:
Described the second processing unit is to the cascade that interweaves of ACK/NACK coded message and CSI coded message, obtain a cascaded message sequence, described communication unit is mapped to this modular cascade sequence in described sub-frame of uplink in the physical resource that PUCCH is corresponding in order, wherein, the cascade that interweaves described in is illustrated in when carrying out cascade processing and has also realized and having interweaved;
Or,
Described the second processing unit carries out concatenated in order to ACK/NACK coded message and CSI coded message, and the modular cascade sequence obtaining is interweaved, obtain an interleaved sequence, described communication unit is mapped to this interleaved sequence in described sub-frame of uplink in the physical resource that PUCCH is corresponding in order.
8. the device as described in claim 5,6 or 7, it is characterized in that, described communication unit is carried out after map operation, between each time slot taking at described physical resource, the quantity approximately equal of the Resource Unit RE that ACK/NACK information takies, and the quantity approximately equal of the RE that takies of CSI.
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| CN103580797B (en) * | 2012-08-03 | 2017-05-03 | 电信科学技术研究院 | Transmission method and device of uplink control information |
| CN107852290B (en) * | 2015-01-30 | 2020-04-24 | 华为技术有限公司 | Method, device and system for transmitting uplink control information |
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| US10342012B2 (en) | 2015-03-15 | 2019-07-02 | Qualcomm Incorporated | Self-contained time division duplex (TDD) subframe structure |
| US9936519B2 (en) | 2015-03-15 | 2018-04-03 | Qualcomm Incorporated | Self-contained time division duplex (TDD) subframe structure for wireless communications |
| WO2016161602A1 (en) | 2015-04-09 | 2016-10-13 | Telefonaktiebolaget Lm Ericsson (Publ) | Pucch resource allocation and fallback operation |
| US9814058B2 (en) | 2015-05-15 | 2017-11-07 | Qualcomm Incorporated | Scaled symbols for a self-contained time division duplex (TDD) subframe structure |
| CN112615707B (en) | 2015-06-19 | 2024-04-23 | 北京三星通信技术研究有限公司 | Method for transmitting uplink control information |
| US9992790B2 (en) | 2015-07-20 | 2018-06-05 | Qualcomm Incorporated | Time division duplex (TDD) subframe structure supporting single and multiple interlace modes |
| WO2017063345A1 (en) * | 2015-10-15 | 2017-04-20 | Intel IP Corporation | Channel state information feedback channel |
| CN107241802B (en) * | 2016-03-29 | 2022-12-02 | 中兴通讯股份有限公司 | Method and device for sending uplink control information UCI |
| CN107370585B (en) | 2016-05-13 | 2020-10-23 | 华为技术有限公司 | Channel state information feedback method and device |
| CN111262668B (en) * | 2018-12-12 | 2021-10-12 | 维沃移动通信有限公司 | Physical uplink control channel transmission method, network side equipment and terminal |
| CN110311765B (en) * | 2019-03-29 | 2021-09-28 | 北京紫光展锐通信技术有限公司 | Data transmission method and device |
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