CN101039165A - Information feedback method based on multi-antenna self-adaptive modulation coding and apparatus thereof - Google Patents
Information feedback method based on multi-antenna self-adaptive modulation coding and apparatus thereof Download PDFInfo
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Abstract
The invention discloses an information feedback method based on a multi-antenna adaptive modulation and coding, including a first time field part and a second time field part. According to every transmitting antenna, a receive terminal with a interleaving rules former associated with a launch terminal, divides the time field resource into the first and second time field part from the interleaving rules; The first time field part respectively feedbacks the AMC information needed to feedback to the transmitting antenna, and the second time field part feedbacks the AMC information needed to feedback to the transmitting antenna. The invention also relevantly discloses a corresponding information feedback device based on the adaptive modulation and coding. The invention can reduce the number of feedback information from the receive terminal based on the MIMO technology in the MCW modular of AMC, which reduces a feedback control signaling overhead from the receive terminal.
Description
Technical field
The present invention relates to the multiple-input and multiple-output (MIMO in the mobile communication system, Multi-InputMulti-Output) technology and Adaptive Modulation and Coding (AMC, Adaptive Modulation and Coding) technology especially relates to a kind of information feedback method and device thereof based on multi-antenna self-adaptive modulation coding.
Background technology
At present, because multiple-input and multiple-output (MIMO, Multi-Input Multi-Output) technology is from the angle of increase power system capacity or from the angle of improving systematic function the irreplaceable superiority of other technologies to be arranged all, so the application of MIMO technology in mobile communication system more and more obtains paying attention to.Wherein the MIMO technology mainly comprises two big classes, a class be with the maximization diversity gain be the space diversity reception to communicate of purpose, another kind of then is to be the space division multiplexing technology of purpose with maximum data speed.
Wherein, the space division multiplexing technological model in the MIMO technology can be divided into following two kinds of patterns:
(1) single codeword (SCW, Single Code Word) pattern
As shown in Figure 1, data sending processing process schematic diagram for SCW pattern in the existing MIMO technology, wherein transmitting terminal with data flow to be sent at first through chnnel coding, interweave and after planisphere mapping etc. handles, be the data flow of M road (M is the number of antennas that transmitting terminal comprises) phase same rate along separate routes, every circuit-switched data stream is launched through different antennas respectively after handling through corresponding channelizing.
Wherein according to the multi-access mode difference that system adopted, the identical channel code or the channel resources such as frequency or time of data occupancy of this M that transmitting terminal comprises an antenna emission; For example, for code division multiple access (CDMA) system, the M that transmitting terminal a comprises antenna can use identical channel code, and for OFDM (OFDMA) system, the M that transmitting terminal a comprises antenna can use one group of identical subcarrier etc., channelizing shown in this Fig. 1 is handled and is promptly referred to the multi-access mode that adopts according to system, will carry out spread processing (for cdma system), subcarrier mapping by the signal that respective antenna is launched and handle (for the OFDMA system) etc.
(2) many code words (MCW, Multiple Code Word) pattern
As shown in Figure 2, data sending processing process schematic diagram for MCW pattern in the existing MIMO technology, wherein transmitting terminal is M circuit-switched data stream at first along separate routes with data flow to be sent, the speed of each circuit-switched data stream conforms to the message transmission rate that can support of a respective antenna in M the transmitting antenna respectively, then each circuit-switched data flow point not through chnnel coding independently, interweave and after planisphere mapping etc. handles, go out by corresponding transmission antennas transmit respectively at last.In like manner, according to the multi-access mode difference that system adopted, the data flow of this M transmission antennas transmit takies identical channel code or channel resources such as frequency or time, for example, for cdma system, this M transmitting antenna uses identical channel code, and for the OFDMA system, this M transmitting antenna uses one group of identical subcarrier etc.
In addition; in mobile communication system, also can use adaptive modulation and coding (AMC usually at present; Adaptive Modulation and Coding) technology; the AMC technology is meant that specifically receiving terminal feeds back to transmitting terminal with the information of measuring such as channel quality by feedback channel; so that transmitting terminal and then according to modes such as suitable chnnel coding of the Information Selection such as channel quality of receiving terminal feedback and modulation thereof; carry out processing such as chnnel coding and modulation thereof; wherein the information such as channel quality of receiving terminal feedback comprise type of coding; code rate; modulation system information such as (as QPSK/16QAM), thus reach self adaptation that makes channel and the purpose that maximizes transmission rate.
Wherein in the specific implementation process of AMC technology, in order to reduce the control signaling consumption that information such as receiving terminal feedback channel quality are brought, general way is typical case's modulation and the coded system (MCS that transmitting terminal is supported, Modulation and Coding Scheme) with corresponding channel quality indicated value (CQI, Channel Quality Indicator) sets up corresponding relation between, be kept at transmitting terminal and receiving terminal simultaneously thereby make a CQI concordance list.The performance requirement that just can support according to self receiver of receiving terminal like this, pre-determining it requires down the needed channel quality of each MCS of reception (typically with Signal Interference and Noise Ratio SINR in certain receptivity (as the error rate etc.), Signal to Interference andNoise Ratio characterizes), therefore receiving terminal just can according to actual measurement to channel quality just judge the MCS that it can receive, and this MCS corresponding CQI value in described CQI concordance list fed back to transmitting terminal, thereby reduce the control signaling consumption that receiving terminal feeds back.
Usually in mobile communication system, the use that usually combines of above-mentioned MIMO technology and AMC technology, like this in MIMO scheme based on AMC, because the message transmission rate that each antenna is supported in the SCW pattern is identical, therefore receiving terminal only need feed back a total CQI information and gets final product, and the AMC technology under this and the single channel antenna is similar; But in the MCW pattern, different antennas can adopt different code modulation modes, the message transmission rate that each antenna can be supported is also inequality, therefore just need receiving terminal to feed back corresponding C QI information respectively at each transmitting antenna, therefore in MIMO scheme based on AMC, the MCW pattern needs receiving terminal feedback more control signaling consumption, and the control information amount of its required feedback is M times (M is the number of transmit antennas that comprises in the mimo system) of single-antenna case.
Wherein receiving terminal is that CQI information is inserted (HSPDA by high speed downlink packet, High SpeedPacket Data Access) High-Speed Dedicated Physical Control Channel (HS-DPCCH in the system physical layer, HighSpeed-Dedicated Physical Control Channel) feeds back to transmitting terminal, wherein HSPDA is a kind of descending wireless enhanced technology that third generation collaborative project (3GPP) is introduced in Release 5, and relative HS-DPCCH channel can be used to carry the affirmation (ACK) of receiving terminal feedback/do not confirm (NACK) information and CQI information etc.
As shown in Figure 3, HS-DPCCH subframe structure schematic diagram for existing HS-DPCCH channel, as seen from Figure 3, comprise 3 time slots in the HS-DPCCH subframe, each time slot can transmit 10 channel bit, wherein first time slot is used to transmit receiving terminal in the HARQ relevant information of mixing feedback in the automatic repeat requests (HARQ, Hybrid Automatic Repeat request), and latter two time slot is used to transmit relevant CQI information.Wherein, the CQI message length is 5 bits, through (20,5) form 20 bits after the encoding process and transmit on latter two time slot of HS-DPCCH subframe, the HARQ information spinner of receiving terminal feedback will comprise that receiving terminal receives information success message (ACK message), receiving terminal receives information failed message (NACK message), HARQ Preamble message (PRE message) and HARQ Postamble message (POST message).
Current MIMO technology is as an important work item (WI, Work Item) will in Release7, carry out standardization, the research report TR25.876 of 3GPP has also carried out comparatively comprehensively introducing and analyzing to the MIMO technical scheme of candidate, therefore just make and in mobile communication system, to be used widely based on the MIMO technology of AMC, but at present a key issue that needs to solve in the MIMO technology based on the MCW pattern of AMC is how to reduce the CQI amount of information of receiving terminal feedback, thereby reaches the purpose that reduces receiving terminal feedback control signaling expense.
Summary of the invention
The technical problem to be solved in the present invention is to propose a kind of information feedback method and device thereof based on multi-antenna self-adaptive modulation coding, in based on the MIMO technology of the MCW pattern of AMC, reducing receiving terminal feedack amount, thereby reduce the control signaling consumption of receiving terminal feedback.
For addressing the above problem, the technical scheme that the present invention proposes is as follows:
A kind of information feedback method based on multi-antenna self-adaptive modulation coding comprises step:
At each transmitting antenna, receiving terminal according to the staggered rule of transmitting terminal prearrange, time-domain resource is divided into first time domain part and the second time domain part based on described staggered rule;
Receiving terminal in each first time domain part, feeds back to this transmitting antenna with the self-adapting modulation coding information that needed at that time to feed back respectively; And
Respectively in each second time domain part, the relative feedback information of the self-adapting modulation coding information that the self-adapting modulation coding information that needed at that time to feed back has been fed back with respect to the front is given this transmitting antenna.
Preferably, receiving terminal will feed back to this transmitting antenna by different backward channels respectively with the relative information of partly feeding back in each second time domain of Adaptive Modulation and Coding at the self-adapting modulation coding information that each first time domain is partly fed back.
Preferably, described staggered rule is interval defined amount second a time domain part between any two first time domains part.
Preferably, at the backward channel that is used for the feedback adaptive modulation coding information, receiving terminal partly carries out discontinuous transmission process in each second time domain.
Preferably, at the backward channel that is used for the feedback adaptive modulation coding information, receiving terminal partly feeds back the self-adapting modulation coding information that needed to feed back to other transmitting antennas outside this transmitting antenna at that time in each second time domain.
Preferably, at the backward channel that is used for the relative information of feedback adaptive modulating-coding, receiving terminal partly carries out discontinuous transmission process in each first time domain.
Preferably, at the backward channel that is used for the relative information of feedback adaptive modulating-coding, receiving terminal partly feeds back the relative information of Adaptive Modulation and Coding that needed to feed back to other transmitting antennas outside this transmitting antenna at that time in each first time domain.
Preferably, receiving terminal need carry out at the self-adapting modulation coding information that each first time domain is partly fed back feeding back after block encoding processing or the convolutional encoding processing again.
Preferably, receiving terminal uses two bits to characterize the relative information of the Adaptive Modulation and Coding that will feed back to each transmitting antenna.Preferably, to use chnnel coding 1111111111 to characterize the relative information of the Adaptive Modulation and Coding that will feed back be+2 or-2 to receiving terminal; And
Use chnnel coding 0000000000 characterize the relative information of the Adaptive Modulation and Coding that will feed back for-2 or+2;
Using chnnel coding 0100100100 to characterize the relative information of the Adaptive Modulation and Coding that will feed back simultaneously is+1 or-1; And
Use chnnel coding 0010010010 characterize the relative information of the Adaptive Modulation and Coding that will feed back for-1 or+1.
Preferably, receiving terminal uses a bit to characterize the relative information of the Adaptive Modulation and Coding that will feed back to each transmitting antenna.Preferably, to use chnnel coding 1111111111 to characterize the relative information of the Adaptive Modulation and Coding that will feed back be+1 or-1 to receiving terminal; And
Use chnnel coding 0000000000 characterize the relative information of the Adaptive Modulation and Coding that will feed back for-1 or+1.
Preferably, receiving terminal is in each second time domain part, when the relative information of Adaptive Modulation and Coding that needs to feed back to transmitting antenna at that time is zero, carries out discontinuous transmission process.
Preferably, receiving terminal is at each transmitting antenna, and second time domain of each on backward channel part needed the relative information of Adaptive Modulation and Coding fed back at that time to this transmit antenna feedback all the time.
Preferably, receiving terminal is at each transmitting antenna, and second time domain of each on backward channel part is fed back to this transmitting antenna and other respective transmit antenna respectively needed the relative information of corresponding Adaptive Modulation and Coding fed back at that time.
Preferably, the relative information of described Adaptive Modulation and Coding need at that time to refer to the information difference of the self-adapting modulation coding information that the self-adapting modulation coding information that feeds back fed back with respect to front the last time.
Preferably, described self-adapting modulation coding information is a channel quality indication (CQI) information.
A kind of information feedback device based on multi-antenna self-adaptive modulation coding comprises:
The time domain division unit is used at each transmitting antenna, receiving terminal according to the staggered rule of transmitting terminal prearrange, time-domain resource is divided into first time domain part and the second time domain part based on described staggered rule;
First feedback unit is used for each first time domain part that receiving terminal marks off in described time domain division unit respectively, and the self-adapting modulation coding information that needed at that time to feed back is fed back to corresponding transmitting antenna;
Second feedback unit, be used for each second time domain part that receiving terminal marks off in described time domain division unit respectively, the relative feedback information of the self-adapting modulation coding information that the self-adapting modulation coding information that needed at that time to feed back has been fed back with respect to the front is given corresponding transmitting antenna.
Preferably, described first feedback unit uses the different relative information with Adaptive Modulation and Coding of backward channel feedback adaptive modulation coding information respectively with second feedback unit.
A kind of information feedback method based on multi-antenna self-adaptive modulation coding comprises step:
Receiving terminal feeds back corresponding at that time self-adapting modulation coding information to different transmit antennas in the different Transmission Time Intervals of High-Speed Dedicated Physical Control Channel; And
Be used in the Transmission Time Interval of the corresponding self-adapting modulation coding information of transmit antenna feedback at described High-Speed Dedicated Physical Control Channel, needed the relative information of the self-adapting modulation coding information that the self-adapting modulation coding information that feeds back fed back with respect to the front in other respective transmit antenna feedbacks outside this transmitting antenna on first additional channel at that time.
Preferably, feedback adaptive modulation coding information in receiving terminal latter two time slot in the different Transmission Time Intervals of described High-Speed Dedicated Physical Control Channel;
And the corresponding hybrid automatic retransmission request information of feedback in first time slot in the different Transmission Time Intervals of described High-Speed Dedicated Physical Control Channel.
Preferably, receiving terminal also is reserved with the part Transmission Time Interval on described High-Speed Dedicated Physical Control Channel; And
The corresponding hybrid automatic retransmission request information of feedback in first time slot in the Transmission Time Interval of described reservation, and in latter two time slot, carry out discontinuous transmission process.
Preferably, receiving terminal is used in the Transmission Time Interval of the corresponding self-adapting modulation coding information of transmit antenna feedback at described High-Speed Dedicated Physical Control Channel, and the arbitrary transmit antenna feedback of other outside this transmitting antenna needed the relative information of Adaptive Modulation and Coding fed back at that time all the time on described first additional channel.
Preferably, receiving terminal is used in the Transmission Time Interval of the corresponding self-adapting modulation coding information of transmit antenna feedback at described High-Speed Dedicated Physical Control Channel, and other each transmitting antennas on described first additional channel outside this transmitting antenna feed back respectively needed the relative information of Adaptive Modulation and Coding fed back at that time.
Preferably, receiving terminal is used for carrying out discontinuous transmission process on described first additional channel in first time slot of the Transmission Time Interval of the corresponding self-adapting modulation coding information of transmit antenna feedback at described High-Speed Dedicated Physical Control Channel.
Preferably, feed back corresponding hybrid automatic retransmission request information to different transmit antennas respectively in first time slot of receiving terminal in the different Transmission Time Intervals of described High-Speed Dedicated Physical Control Channel.
Preferably, in first time slot of receiving terminal in the different Transmission Time Intervals of described High-Speed Dedicated Physical Control Channel all the time to a corresponding hybrid automatic retransmission request information of transmit antenna feedback; And
Other each transmitting antennas on one second additional channel outside this transmitting antenna feed back corresponding hybrid automatic retransmission request information respectively.
Preferably, receiving terminal preferential forward time slot by each Transmission Time Interval on this second additional channel feeds back corresponding hybrid automatic retransmission request information respectively to other each transmitting antennas; And
After the leaning on of each Transmission Time Interval, do not use time slot to carry out discontinuous transmission process.
Preferably, in first time slot of receiving terminal in the different Transmission Time Intervals of described High-Speed Dedicated Physical Control Channel all the time to a corresponding hybrid automatic retransmission request information of transmit antenna feedback; And
The hybrid automatic retransmission request information that needs is fed back to other each transmitting antennas outside this transmitting antenna is fed back by the second different additional channels respectively.
Preferably, receiving terminal feeds back the hybrid automatic retransmission request information that needs feed back to other each transmitting antennas respectively on first time slot in each Transmission Time Interval of the second different additional channels.
Preferably, the relative information of described Adaptive Modulation and Coding need at that time to refer to the information difference of the self-adapting modulation coding information that the self-adapting modulation coding information that feeds back fed back with respect to front the last time.
Preferably, described self-adapting modulation coding information is a channel quality indication (CQI) information.
Preferably, described hybrid automatic retransmission request information is that receiving terminal receives the information success message; Or be that receiving terminal receives the information failed message; Or be HARQ Preamble message; Or be HARQ Postamble message.
A kind of information feedback device based on multi-antenna self-adaptive modulation coding comprises:
First information feedback unit is used for receiving terminal and feeds back corresponding at that time self-adapting modulation coding information to different transmit antennas in the different Transmission Time Interval of High-Speed Dedicated Physical Control Channel;
The second feedback information unit, be used for described first information feedback unit and be used in the Transmission Time Interval of the corresponding self-adapting modulation coding information of transmit antenna feedback, needed the relative information of the self-adapting modulation coding information that the self-adapting modulation coding information that feeds back fed back with respect to the front in other respective transmit antenna feedbacks outside this transmitting antenna on the other additional channel at that time at described High-Speed Dedicated Physical Control Channel.
The beneficial effect that the present invention can reach is as follows:
Technical solution of the present invention by receiving terminal according to the staggered rule of transmitting terminal prearrange, whole time-domain resource is divided into based on first time domain of the described staggered rule part and the second time domain part, receiving terminal is respectively in each first time domain part, give this transmitting antenna with the absolute AMC feedback information that needed at that time to feed back, and respectively in each second time domain part, give this transmitting antenna with the relative AMC feedback information that needed at that time to feed back, thereby pass through in the different time territory to absolute AMC information of same transmit antenna feedback or relative AMC information, thereby can reduce the amount of information of receiving terminal, also just reduce the control signaling consumption of receiving terminal feedback accordingly to each transmit antenna feedback AMC information.
Description of drawings
Fig. 1 is the data sending processing process schematic diagram of SCW pattern in the existing MIMO technology;
Fig. 2 is the data sending processing process schematic diagram of MCW pattern in the existing MIMO technology;
Fig. 3 is the HS-DPCCH subframe structure schematic diagram of existing HS-DPCCH channel;
First kind of main realization principle flow chart that Fig. 4 proposes for the present invention based on the information feedback method of many antennas AMC;
Fig. 5 is in the inventive method being divided into whole time-domain resource the partly staggered view of different time domain of 2 the second time domains parts in interval between any two first time domains part;
Fig. 6 transmits for partly carry out DTX based on second time domain of the inventive method on the ACQI feedback channel, and first time domain on the RCQI feedback channel is partly carried out DTX channel transmitted transmission state schematic diagram;
Fig. 7 is an ACQI information of partly transmitting other associated transmit antennas based on second time domain of the inventive method on the ACQI feedback channel, and first time domain on the RCQI feedback channel is partly transmitted the Channel Transmission view of the RCQI information of other associated antenna;
First kind of concrete composition structured flowchart that Fig. 8 proposes for the present invention based on the information feedback device of many antennas AMC;
Second kind of main realization principle flow chart that Fig. 9 proposes for the present invention based on the information feedback method of many antennas AMC;
When Figure 10 is the ACQI information of the different TTI internal feedback different transmit antennas of receiving terminal on the HS-DPCCH channel, in part TTI, carry out the HS-DPCCH channel status schematic diagram of DTX transmission;
Figure 11 be receiving terminal in a TTI of ACQI feedback channel in a transmit antenna feedback ACQI information, on the RCQI feedback channel, feed back the view of corresponding RCQI information all the time to other arbitrary transmitting antennas;
Figure 12 be receiving terminal in a TTI of ACQI feedback channel in a transmit antenna feedback ACQI information, carry out respectively on the RCQI feedback channel that DTX handles and to the view of other each transmit antenna feedback RCQI information;
Figure 13 be receiving terminal in a TTI of ACQI feedback channel in a transmit antenna feedback ACQI information, on the RCQI feedback channel respectively to the view of other each transmit antenna feedback RCQI information;
Figure 14 is all the time to the first transmit antenna feedback ACK information, in the view of another HARQ-ACK feedback channel to the second transmit antenna feedback ACK information in first time slot of receiving terminal in each TTI of ACQI feedback channel;
Figure 15 is all the time to the first transmit antenna feedback ACK information in first time slot of receiving terminal in each TTI of ACQI feedback channel, first time slot in each TTI of another HARQ-ACK feedback channel and second time slot are respectively to second transmitting antenna and the 3rd transmit antenna feedback ACK information, and the view of carrying out the DTX transmission at the 3rd time slot;
Figure 16 be in first time slot of receiving terminal in each TTI of ACQI feedback channel all the time to the first transmit antenna feedback ACK information, in three time slots in each TTI of another HARQ-ACK feedback channel respectively to second, third, the view of the 4th transmit antenna feedback ACK information;
Figure 17 be in first time slot of receiving terminal in each TTI of ACQI feedback channel all the time to the first transmit antenna feedback ACK information, in first time slot at other in each TTI of each additional HARQ-ACK feedback channel respectively to the view of other transmit antenna feedback ACK information;
Second kind of main composition structured flowchart that Figure 18 proposes for the present invention based on the information feedback device of many antennas AMC.
Embodiment
Technical solution of the present invention is main according in the MIMO technology in mobile communication system, as Transmission Time Interval (TTI, when Transmission Time Interval) length is less than the correlated time of channel, channel fading changes the difference features of smaller between the adjacent TTI of same transmitting antenna, and propose in the mimo system based on the MCW pattern of AMC, receiving terminal adopts the AMC absolute magnitude (to refer to need at that time to feed back to the AMC amount of information of transmitting antenna to every transmit antennas respectively, as CQI absolute magnitude ACQI, Absolute CQI) and the AMC relative quantity (the AMC amount of information that need at that time to refer to feed back to transmitting antenna has fed back to the difference of the AMC amount of information of this transmitting antenna with respect to the front, as CQI relative quantity RCQI, Relative CQI) method that combines and feed back, thereby comparatively effectively reduce the AMC amount of information (as the CQI amount of information) of receiving terminal each transmit antenna feedback in mimo system, and reach the purpose that reduces receiving terminal feedback control signaling expense with this.
Be explained in detail to the main realization principle of technical solution of the present invention, embodiment and to the beneficial effect that should be able to reach below in conjunction with each accompanying drawing.
Please refer to Fig. 4, this figure is first kind of main realization principle flow chart based on the information feedback method of many antennas AMC that the present invention proposes, and its main implementation procedure is as follows:
Step S10, at each transmitting antenna in the mimo system, receiving terminal according to the staggered rule of transmitting terminal prearrange, whole time-domain resource is divided into first time domain part and the second time domain part based on this staggered rule; Wherein should staggered rule can but be not limited between any two first time domains part defined amount second a time domain part at interval, as shown in Figure 5, be the partly staggered view of the different time domain that in the inventive method whole time-domain resource is divided into 2 the second time domains parts in interval between any two first time domains part.
Step S20, receiving terminal is respectively in above-mentioned each first time domain part that marks off, the AMC information that will need at that time respectively to feed back (preferably can for being used for the CQI information of the CQI concordance list that the index receiving-transmitting sides preserves, following abbreviation " absolute CQI information ") feeds back to this transmitting antenna;
Step S30, receiving terminal is respectively in above-mentioned each second time domain part that marks off, the relative information (as the relative information of CQI, following abbreviation " CQI information relatively ") of the AMC information that the AMC information that needed at that time to feed back has been fed back with respect to the front feeds back to this transmitting antenna;
Particularly, the relative information of the AMC here can but be not limited to the information difference that needs the AMC information that the AMC information fed back fed back with respect to front the last time at that time, the relative information of this AMC can use 1 bit or 2 bits to characterize, with reduce receiving terminal to the relative information of transmit antenna feedback AMC with respect to the direct information feedback amount of feedback AMC information, follow-up appropriate section will specify relative information of AMC and transmission course thereof.
Preferably, receiving terminal can feed back to this transmitting antenna by different backward channels respectively with the relative information of partly feeding back in each second time domain of AMC with the AMC information of partly feeding back in above-mentioned each first time domain that marks off, in the process of same transmit antenna feedback CQI information, can adopt the backward channel that separates to carry out feedback transmission with relative CQI information RCQI the absolute CQI information A CQI that on different time domain, feeds back as receiving terminal.
Wherein when receiving terminal feeds back to this transmitting antenna by different backward channels respectively with the relative information with AMC of AMC information, at the backward channel that is used to feed back AMC information, receiving terminal can partly carry out discontinuous transmission (DTX in each second time domain, Discontinuous Transmission) handles, promptly do not carry out the feedback transmission of any information, can also partly feed back the AMC information that needed to feed back to other transmitting antennas outside this transmitting antenna at that time in each second time domain in second time domain part.And at the backward channel that is used to feed back the relative information of AMC, receiving terminal can partly carry out the DTX transmission process in each first time domain, can also partly feed back the relative information of AMC that needed to feed back to other transmitting antennas outside this transmitting antenna at that time in each first time domain.
As shown in Figure 6, transmit for partly carry out DTX based on second time domain of the inventive method on the ACQI feedback channel, and first time domain on the RCQI feedback channel is partly carried out DTX channel transmitted transmission state schematic diagram.
As shown in Figure 7, for partly transmitting the ACQI information of other associated transmit antennas based on second time domain of the inventive method on the ACQI feedback channel, and first time domain on the RCQI feedback channel is partly transmitted the Channel Transmission view of the RCQI information of other associated antenna.
Wherein receiving terminal is before each first time domain part feeds back to corresponding transmitting antenna with corresponding AMC information by feedback channel, receiving terminal can carry out that block encoding is handled or convolutional encoding is fed back after handling again to corresponding AMC information, as the ACQI information that feeds back to respective transmit antenna in advance being adopted block encoding handle earlier or convolutional encoding is mapped on the reverse physical channels after handling again and transmits.
According to the above-mentioned principle of the inventive method, receiving terminal is to the not continuous feedback transmission on each TTI of ACQI information of every transmit antennas feedback, but carries out feedback transmission with certain feedback cycle (an ACQI feedback cycle comprises more than one TTI).An ACQI feedback cycle for corresponding certain transmitting antenna, except the ACQI information that can feed back this transmitting antenna, can also be on other TTI of this feedback cycle, come the ACQI information of corresponding other transmitting antenna of feedback transmission, otherwise on other TTI of this feedback cycle, adopt the DTX transmission, promptly in these corresponding TTI, do not launch any signal.
Wherein, ACQI feedback cycle timing pattern (Timing Pattern) corresponding to different transmit antennas is that system is pre-configured, therefore receiving-transmitting sides can and receive the ACQI information of each transmitting antenna according to the correct transmission of this timing pattern, and is as follows as an ACQI feedback cycle timing pattern embodiment:
ACQI feedback information with number of transmit antennas M=4 is an example, can be the 1st, 5,9 ... come the ACQI information of corresponding the 1st transmitting antenna of feedback transmission in the individual TTI, simultaneously the 2nd, 6,10 ... come the ACQI information of corresponding the 2nd transmitting antenna of feedback transmission in the individual TTI, simultaneously the 3rd, 7,11 ... come the ACQI information of corresponding the 3rd antenna of feedback transmission in the individual TTI, and simultaneously the 4th, 8,12 ... come the ACQI information of corresponding the 4th antenna of feedback transmission in the individual TTI.
Above-mentionedly set forth, receiving terminal can use 1 bit or 2 bits to characterize the relative information of the AMC that will feed back to each transmitting antenna, indicate to feed back to the RCQI information of each transmitting antenna as adopting 1 or 2 bits, because being used to transmit the channel spread factor (SF) of RCQI information is 256, be that each time slot can transmit 10 physical channel bit, therefore can transmit a RCQI value of information based on 10 physical channel bit of a time slot.Typically, as to using 2 bits to represent the situation of RCQI information, can use " 1111111111 " and " 0000000000 " to represent respectively+2 and-2 (or expressions-2 and+2 respectively), and use " 0100100100 " and " 0010010010 " to represent respectively+1 and-1 (or expression-1 and+1 respectively), shown in the table 1 specific as follows; Represent the situation of RCQI information to using 1 bit, can use " 1111111111 " and " 0000000000 " to represent respectively+1 and-1 (or expression-1 and+1 respectively), shown in the table 2 specific as follows, can reduce the feedback information volume of receiving terminal like this, and reduce the error rate that occurs in the transmission course.
Table 1: the coding schedule when using 2 bits to represent RCQI information
| RCQI | w9 | w8 | w7 | w6 | w5 | w4 | w3 | w2 | w1 | w0 |
| +2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| +1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
| 0 | DTX | |||||||||
| -1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
| -2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Table 2: the coding schedule when using 1 bit to represent RCQI information
| RCQI | w9 | w8 | w7 | w6 | w5 | w4 | w3 | w2 | w1 | w0 |
| +1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 0 | DTX | |||||||||
| -1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Simultaneously also as can be seen by last table 1 and 2, receiving terminal can be in each second time domain part, in the relative information of AMC that needs to feed back to corresponding transmitting antenna at that time is 0 o'clock, adopt discontinuous transmission to handle, concrete, in the time of will feeding back to the RCQI=0 of corresponding transmitting antenna as receiving terminal, show that promptly current TTI is identical with the RCQI information that RCQI information and a last TTI of feedback feeds back, therefore can represent based on DTX in current TTI, the Node B at transmitting antenna place can adopt the energy measuring mode to judge whether the RCQI feedback channel in the corresponding time slot is the DTX form, wherein, this energy measuring mode is meant that NodeB compares the judging threshold of a received signal energy on the RCQI feedback channel in this time slot and a regulation, can judge then on the RCQI feedback channel that transmission form is DTX in this time slot if the received signal energy on the RCQI feedback channel then is worth less than this decision threshold, further reduce the feedback information volume of receiving terminal so again.
Wherein receiving terminal is at the backward channel that is used for to the relative information of transmit antenna feedback AMC, can feed back respectively to this transmitting antenna all the time in each second time domain part needed the relative information of AMC fed back at that time, and can also feed back respectively to this transmitting antenna and other respective transmit antenna respectively in each second time domain part needed the relative information of AMC fed back at that time.As the length of supposing one second time domain part is a TTI length, then at the backward channel that is used to feed back RCQI information, can feed back the same RCQI value of information all the time at a plurality of time slots in being used for feeding back a TTI of RCQI information, promptly the time slot of this RCQI value of information of transmission that is useful in this TTI is all identical, that is to say that these time slots that are used for transmitting this RCQI value of information that are coded in the RCQI information in one of them time slot carry out repetition, simultaneously according to the inventive method principle, the ACQI feedback cycle regularly given being used to of pattern (Timing Pattern) feed back in the TTI of ACQI information of a transmitting antenna the RCQI value of information that can not this transmitting antenna of feedback transmission.
First kind of information feedback method corresponding to the above-mentioned proposition of the present invention based on many antennas AMC, the present invention goes back and then has proposed a kind of information feedback device based on many antennas AMC here, this device can be placed in the mobile subscriber terminal in the mobile communication system, is used for feeding back corresponding AMC information (concrete as CQI information etc.) to transmitting terminal.Please refer to Fig. 8, this figure is first kind of concrete composition structured flowchart based on the information feedback device of many antennas AMC that the present invention proposes, it mainly comprises time domain division unit 10, first feedback unit 20 and second feedback unit 30, and wherein the concrete effect of each component units is as follows:
Time domain division unit 10 is mainly used at each transmitting antenna, receiving terminal according to the staggered rule of transmitting terminal prearrange, whole time-domain resource is divided into first time domain part and the second time domain part based on this staggered rule;
The first wherein above-mentioned feedback unit 20 can use different backward channels to feed back the relative information with AMC of AMC information respectively with second feedback unit 30, promptly corresponding each transmitting antenna, receiving terminal is to give corresponding transmitting antenna by different backward channels with the relative feedback information with AMC of AMC information.
Other the concrete correlation techniques based on the information feedback device of many antennas AMC that wherein propose here realize that details please refer to the description that correlation technique in the first method that the invention described above proposes realizes details, just no longer give too much to give unnecessary details here.
Here the first method of the above-mentioned proposition of the present invention specifically is applied on the HS-DPCCH channel in the WCDMA mobile communication system, can derive second kind of information feedback method that the present invention proposes again here based on many antennas AMC, please refer to Fig. 9, this figure is second kind of main realization principle flow chart based on the information feedback method of many antennas AMC that the present invention proposes, and its main implementation procedure is as follows:
Step S100, receiving terminal (typically can be CQI information to the corresponding at that time AMC information of different transmit antennas feedback in the different Transmission Time Intervals (TTI) of High-Speed Dedicated Physical Control Channel (HS-DPCCH), and the AMC information that will feed back at that time here abbreviates absolute AMC information as, the corresponding following absolute CQI information-ACQI information that also abbreviates as of CQI information);
Step S200, simultaneously, receiving terminal is used in the TTI of a transmit antenna feedback corresponding A MC information at above-mentioned HS-DPCCH channel, go up the relative information that other respective transmit antenna feedbacks outside this transmitting antenna needed the AMC information that the AMC information fed back fed back with respect to the front at that time at first additional channel (this first additional channel is two different channels with this HS-DPCCH channel physically), wherein the relative information of the AMC here can but be not limited to the information difference that needs the AMC information that the AMC information fed back fed back with respect to front the last time at that time, followingly the relative information of AMC can be abbreviated as relative AMC information, the concrete following relative CQI information-RCQI information that also the relative information of CQI abbreviated as.
According to foregoing invention method principle, as on the HS-DPCCH channel, in first TTI, needed to feed back to the ACQI information of the 1st transmitting antenna at that time to the 1st transmit antenna feedback, in second TTI, needed to feed back to the ACQI information of the 2nd transmitting antenna at that time, in the 3rd TTI, needed to feed back to the ACQI information of the 3rd transmitting antenna at that time to the 3rd transmit antenna feedback to the 2nd transmit antenna feedback ... by that analogy.Simultaneously on one first additional channel, in first TTI, can need to feed back the RCQI information of the 2nd, the 3rd antenna to the 2nd, the 3rd transmit antenna feedback at that time, in second TTI, needed to feed back to the RCQI information of the 1st, the 3rd transmitting antenna at that time to the 1st, the 3rd transmit antenna feedback, in the 3rd TTI, needed to feed back to the RCQI information of the 1st, the 2nd transmitting antenna at that time, by that analogy to the 1st, the 2nd transmit antenna feedback ...
In order to use the inventive method principle, and the channel architecture of existing HS-DPCCH channel carried out as far as possible little change, here receiving terminal preferably feeds back corresponding AMC information to different transmit antennas in latter two time slot in the different TTI of HS-DPCCH, and keep feeding back corresponding hybrid automatic retransmission request information (HARQ information) to respective transmit antenna in first time slot of prior art in different TTI, wherein the HARQ information spinner of receiving terminal feedback will comprise that receiving terminal receives information success message (ACK message) and receiving terminal receives information failed message (NACK message), can also be HARQ Preamble message (PRE message) or HARQ Postamble message (POST message).
For example, in order to simplify the HARQ retransmission mechanism, the present invention requires receiving terminal to adopt unified HARQ retransmission mechanism here, be only to feed back an ack/nack signal (feeding back on first time slot in each TTI) in receiving terminal UE each TTI on HS-DPCCH, transmitting terminal NodeB will retransmit all transmission blocks in the corresponding TTI automatically after receiving the NACK signal; Latter two time slot that will be used for originally simultaneously in each TTI of transmit antenna feedback CQI information is used for to the corresponding ACQI information of transmit antenna feedback.
Wherein in the different TTI of receiving terminal on the HS-DPCCH channel when different transmit antennas is fed back corresponding AMC information, can also be on this HS-DPCCH channel reserved part TTI, and the corresponding HARQ information of feedback in first time slot in the TTI of these reservations, in latter two time slot, carry out the DTX transmission process simultaneously.Specifically as shown in figure 10, in the ACQI information for the different TTI internal feedback different transmit antennas of receiving terminal on the HS-DPCCH channel, in part TTI, carry out the HS-DPCCH channel status schematic diagram of DTX transmission, promptly do not feed back ACQI information in some TTI on the HS-DPCCH channel, and employing DTX transmission process, can reduce the renewal rate of priority like this, the ACQI reporting period that will increase corresponding all transmitting antennas accordingly to same transmit antenna feedback ACQI information.Because in fact, MIMO technology in the mobile communication system mainly is to be applied to middle low speed environments more, typical situation such as indoor application, because it is very little that the channel fading under the middle low speed environments changes, if on the HS-DPCCH channel, carry out in the ACQI feedback information so at this moment adopt, also carry out the DTX transmission on some time slot can be so that reduce the CQI amount of information of average feedback in each TTI when satisfying communication performance greatly.As previously mentioned, the feedback of ACQI information has adopted the known ACQI timing reporting period pattern of receiving-transmitting sides, and therefore which TTI on the HS-DPCCH channel has carried out the DTX transmission, and Node B can determine, need not to carry out other detection processing.
Preferable, receiving terminal is used in the TTI of a transmit antenna feedback corresponding A MC information at the HS-DPCCH channel, can on first additional channel all the time any transmit antenna feedback of other outside this transmitting antenna needed the relative information of AMC fed back at that time.Specifically as shown in figure 11, for receiving terminal in a TTI of ACQI feedback channel in a transmit antenna feedback ACQI information, on the RCQI feedback channel, feed back the view of corresponding RCQI information all the time to other arbitrary transmitting antennas; ACQI reporting period was respectively 2,3,4 TTI at 3,4 o'clock at number of transmit antennas M=2 among the figure.Here will new in addition being used for of introducing be referred to as RCQI feedback channel (being defined as the HS-RCQICH channel) to the feedback information of transmit antenna feedback RCQI information, situation for M=2, be used in the TTI of transmit antennas feedback ACQI information, then on the RCQI feedback channel, feeding back RCQI information on the ACQI feedback channel, and repeating 3 times in 3 time slots of RCQI information in a TTI of RCQI feedback channel of a corresponding transmitting antenna to an other transmit antennas.
Preferable, receiving terminal is used in the TTI of a transmit antenna feedback corresponding A MC information at the HS-DPCCH channel, also can feed back respectively and need the relative information of AMC fed back at that time at each transmitting antenna of other outside this transmitting antenna on first additional channel, simultaneously receiving terminal can also be used for first time slot in the TTI of a transmit antenna feedback corresponding A MC information at the HS-DPCCH channel, carries out the DTX transmission process on first additional channel.
Specifically as shown in figure 12, for receiving terminal in a TTI of ACQI feedback channel in a transmit antenna feedback ACQI information, carry out respectively on the RCQI feedback channel that DTX handles and to the view of other each transmit antenna feedback RCQI information, shown in the figure corresponding to the situation of number of transmit antennas M=3, be used on the ACQI feedback channel in the TTI of transmit antennas feedback ACQI information, on the RCQI feedback channel, feed back RCQI information to other 2 transmit antennas respectively, one of them obsolete time slot adopts the DTX transmission process, this DTX transmission can be pre-configured by system, so that do not need transmitting terminal Node B to detect.
As shown in figure 13, for receiving terminal in a TTI of ACQI feedback channel in a transmit antenna feedback ACQI information, on the RCQI feedback channel respectively to the view of other each transmit antenna feedback RCQI information, the situation of corresponding number of transmit antennas M=4 shown in the figure, be used in the TTI of transmit antennas feedback ACQI information, on the RCQI feedback channel, feeding back RCQI information to other 3 transmit antennas respectively on the ACQI feedback channel.
For the HARQ feedback information in the HS-DPCCH channel in the prior art, the present invention has proposed following several concrete feedback system in conjunction with the mode of above-mentioned transmission ACQI information and RCQI information:
First kind: feed back corresponding HARQ information to different transmit antennas respectively in first time slot of receiving terminal in the different TTI of HS-DPCCH channel, concrete feedback system as HARQ information among above-mentioned Figure 10, Figure 11, Figure 12 and Figure 13.
Second kind: can be in first time slot of receiving terminal in the different TTI of HS-DPCCH channel all the time to the corresponding HARQ information of transmit antenna feedback, and other each transmitting antennas outside this transmitting antenna feed back corresponding HARQ information respectively on one second additional channel.Specifically as shown in figure 14, for in first time slot of receiving terminal in each TTI of ACQI feedback channel all the time to the first transmit antenna feedback ACK information, in the view of another HARQ-ACK feedback channel to the second transmit antenna feedback ACK information, wherein receiving terminal can preferentially feed back corresponding HARQ information by the forward time slot part of each TTI respectively to other each transmitting antennas on this second additional channel, and after the leaning on of each TTI, do not use time slot partly to carry out the DTX transmission process, as in Figure 14, in another HARQ-ACK feedback channel respectively in first time slot in each TTI to the second transmit antenna feedback ACK information, and carry out the DTX transmission process in latter two time slot in each TTI.
First time slot that the feedback system principle of above-mentioned second kind of HARQ information is in each TTI of the HS-DPCCH channel that uses current agreement feeds back the HARQ-ACK information of an antenna, also distribute (perhaps a plurality of) HARQ-ACK feedback channel (can be referred to as the HS-ACKCH channel) in addition for other antenna, the SF=256 of the HARQ-ACK feedback channel of this distribution, 3 time slots on it in each TTI are respectively applied for to the corresponding HARQ-ACK information of different transmit antennas feedback, and the HS-DPCCH channel of the channel architecture of each time slot and current agreement be used to that to feed back the channel architecture of first time slot in each TTI of HARQ-ACK information identical, when some time slot of the HARQ-ACK of additional allocation feedback channel does not use, can carry out the DTX transmission process.
Specifically as shown in figure 15, for in first time slot of receiving terminal in each TTI of ACQI feedback channel all the time to the first transmit antenna feedback ACK information, first time slot in each TTI of another HARQ-ACK feedback channel and second time slot are respectively to second transmitting antenna and the 3rd transmit antenna feedback ACK information, and the view of carrying out the DTX transmission at the 3rd time slot;
As shown in figure 16, for in first time slot of receiving terminal in each TTI of ACQI feedback channel all the time to the first transmit antenna feedback ACK information, in three time slots in each TTI of another HARQ-ACK feedback channel respectively to second, third, the view of the 4th transmit antenna feedback ACK information.
The third: receiving terminal can first time slot in the different TTI of HS-DPCCH channel in all the time to the corresponding HARQ information of transmit antenna feedback, and the HARQ information that needs feed back to other each transmitting antennas outside this transmitting antenna fed back by the second different additional channels is set respectively.
Specifically as shown in figure 17, for in first time slot of receiving terminal in each TTI of ACQI feedback channel all the time to the first transmit antenna feedback ACK information, in first time slot at other in each TTI of each additional HARQ-ACK feedback channel respectively to the view of other transmit antenna feedback ACK information, wherein in first time slot in each TTI of HARQ-ACK feedback channel that is second transmitting antenna configuration respectively to the corresponding at that time ACK information of first transmit antenna feedback, and in first time slot in each TTI of HARQ-ACK feedback channel that is the 3rd transmitting antenna configuration respectively to the corresponding at that time ACK information of the 3rd transmit antenna feedback, and in first time slot in each TTI of HARQ-ACK feedback channel that is the configuration of the 4th transmitting antenna respectively to the corresponding at that time ACK information of the 4th transmit antenna feedback.
The feedback system employing that is the third HARQ information is provided with different HARQ-ACK feedback channels (HS-ACKCH) respectively, feed back the ACK information of different transmit antennas respectively, it is identical wherein to be used to feed back the first interior time slot channel architecture of the TTI of HARQ-ACK information here in the HS-DPCCH channel of the channel architecture of the extra HARQ-ACK feedback channel that is provided with and current agreement, only use first interior time slot of each TTI of the HARQ-ACK feedback channel of each setting to come feeding back ACK information, remaining two time slots adopt the DTX transmission in each TTI.Can make Node B obtain the HARQ feedback information (ACK/NACK information) that each transmitting antenna needs faster like this, thereby reduce to feed back the time-delay of HARQ information, but when number of transmit antennas is bigger, can cause in first time slot in each TTI peak power bigger, here can be by allowing different receiving terminals on uplink feedback channel, regularly different time-gap be staggered mutually, thus the up peak interference power that reduces thus to be produced.
Second kind of information feedback method corresponding to the above-mentioned proposition of the present invention based on many antennas AMC, the present invention goes back here and then has proposed another kind of information feedback device based on many antennas AMC, and this device can be placed in the mobile subscriber terminal inside in the mobile communication system.Please refer to Figure 18, this figure is second kind of main composition structured flowchart based on the information feedback device of many antennas AMC that the present invention proposes, it mainly comprises the first information feedback unit 100 and the second feedback information unit 200, and the concrete effect of these two main component units is as follows:
First information feedback unit 100 is mainly used in receiving terminal and feeds back corresponding at that time AMC information (absolute AMC information) to different transmit antennas in the different TTI of HS-DPCCH channel;
The second feedback information unit 200, be mainly used in above-mentioned first information feedback unit 100 and be used in the TTI of a transmit antenna feedback corresponding A MC information, needed the relative information (AMC information relatively) of the AMC information that the AMC information fed back fed back with respect to the front in the feedback of other respective transmit antenna outside this transmitting antenna on the other additional channel at that time at the HS-DPCCH channel.
Second kind of other the concrete technology based on the information feedback device of many antennas AMC that proposes relevant for the present invention realize that details please refer to second kind of corresponding concrete technology realization details based on the information feedback method of many antennas AMC of the above-mentioned proposition of the present invention, no longer gives too much to give unnecessary details here.
This shows, such scheme of the present invention passes through in the different time territory to absolute AMC information of same transmit antenna feedback or relative AMC information, thereby can reduce receiving terminal to the AMC of each transmit antenna feedback amount of information, the corresponding control signaling consumption that also just reduces the receiving terminal feedback, technical solution of the present invention not only goes for the WCDMA system, can also be applicable to OFDM/OFDMA system and cdma system or the like.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (34)
1, a kind of information feedback method based on multi-antenna self-adaptive modulation coding is characterized in that, comprises step:
At each transmitting antenna, receiving terminal according to the staggered rule of transmitting terminal prearrange, time-domain resource is divided into first time domain part and the second time domain part based on described staggered rule;
Receiving terminal in each first time domain part, feeds back to this transmitting antenna with the self-adapting modulation coding information that needed at that time to feed back respectively; And
Respectively in each second time domain part, the relative feedback information of the self-adapting modulation coding information that the self-adapting modulation coding information that needed at that time to feed back has been fed back with respect to the front is given this transmitting antenna.
2, the method for claim 1, it is characterized in that receiving terminal will feed back to this transmitting antenna by different backward channels respectively with the relative information of partly feeding back in each second time domain of Adaptive Modulation and Coding at the self-adapting modulation coding information that each first time domain is partly fed back.
3, method as claimed in claim 2 is characterized in that, described staggered rule is interval defined amount second a time domain part between any two first time domains part.
4, method as claimed in claim 3 is characterized in that, at the backward channel that is used for the feedback adaptive modulation coding information, receiving terminal partly carries out discontinuous transmission process in each second time domain.
5, method as claimed in claim 3, it is characterized in that, at the backward channel that is used for the feedback adaptive modulation coding information, receiving terminal partly feeds back the self-adapting modulation coding information that needed to feed back to other transmitting antennas outside this transmitting antenna at that time in each second time domain.
6, method as claimed in claim 3 is characterized in that, at the backward channel that is used for the relative information of feedback adaptive modulating-coding, receiving terminal partly carries out discontinuous transmission process in each first time domain.
7, method as claimed in claim 3, it is characterized in that, at the backward channel that is used for the relative information of feedback adaptive modulating-coding, receiving terminal partly feeds back the relative information of Adaptive Modulation and Coding that needed to feed back to other transmitting antennas outside this transmitting antenna at that time in each first time domain.
8, the method for claim 1 is characterized in that, receiving terminal need carry out at the self-adapting modulation coding information that each first time domain is partly fed back feeding back after block encoding processing or the convolutional encoding processing again.
9, the method for claim 1 is characterized in that, receiving terminal uses two bits to characterize the relative information of the Adaptive Modulation and Coding that will feed back to each transmitting antenna.
10, method as claimed in claim 9 is characterized in that, it is+2 or-2 that receiving terminal uses chnnel coding 1111111111 to characterize the relative information of the Adaptive Modulation and Coding that will feed back; And
Use chnnel coding 0000000000 characterize the relative information of the Adaptive Modulation and Coding that will feed back for-2 or+2;
Using chnnel coding 0100100100 to characterize the relative information of the Adaptive Modulation and Coding that will feed back simultaneously is+1 or-1; And
Use chnnel coding 0010010010 characterize the relative information of the Adaptive Modulation and Coding that will feed back for-1 or+1.
11, the method for claim 1 is characterized in that, receiving terminal uses a bit to characterize the relative information of the Adaptive Modulation and Coding that will feed back to each transmitting antenna.
12, method as claimed in claim 11 is characterized in that, it is+1 or-1 that receiving terminal uses chnnel coding 1111111111 to characterize the relative information of the Adaptive Modulation and Coding that will feed back; And
Use chnnel coding 0000000000 characterize the relative information of the Adaptive Modulation and Coding that will feed back for-1 or+1.
13, the method for claim 1 is characterized in that, receiving terminal is in each second time domain part, when the relative information of Adaptive Modulation and Coding that needs to feed back to transmitting antenna at that time is zero, carries out discontinuous transmission process.
14, the method for claim 1 is characterized in that, receiving terminal is at each transmitting antenna, and second time domain of each on backward channel part needed the relative information of Adaptive Modulation and Coding fed back at that time to this transmit antenna feedback all the time.
15, the method for claim 1, it is characterized in that, receiving terminal is at each transmitting antenna, and second time domain of each on backward channel part is fed back to this transmitting antenna and other respective transmit antenna respectively needed the relative information of corresponding Adaptive Modulation and Coding fed back at that time.
16, as the described method of 1～15 arbitrary claim, it is characterized in that the relative information of described Adaptive Modulation and Coding need at that time to refer to the information difference of the self-adapting modulation coding information that the self-adapting modulation coding information that feeds back fed back with respect to front the last time.
17, method as claimed in claim 16 is characterized in that, described self-adapting modulation coding information is a channel quality indication (CQI) information.
18, a kind of information feedback device based on multi-antenna self-adaptive modulation coding is characterized in that, comprising:
The time domain division unit is used at each transmitting antenna, receiving terminal according to the staggered rule of transmitting terminal prearrange, time-domain resource is divided into first time domain part and the second time domain part based on described staggered rule;
First feedback unit is used for each first time domain part that receiving terminal marks off in described time domain division unit respectively, and the self-adapting modulation coding information that needed at that time to feed back is fed back to corresponding transmitting antenna;
Second feedback unit, be used for each second time domain part that receiving terminal marks off in described time domain division unit respectively, the relative feedback information of the self-adapting modulation coding information that the self-adapting modulation coding information that needed at that time to feed back has been fed back with respect to the front is given corresponding transmitting antenna.
19, device as claimed in claim 18 is characterized in that, described first feedback unit uses the different relative information with Adaptive Modulation and Coding of backward channel feedback adaptive modulation coding information respectively with second feedback unit.
20, a kind of information feedback method based on multi-antenna self-adaptive modulation coding is characterized in that, comprises step:
Receiving terminal feeds back corresponding at that time self-adapting modulation coding information to different transmit antennas in the different Transmission Time Intervals of High-Speed Dedicated Physical Control Channel; And
Be used in the Transmission Time Interval of the corresponding self-adapting modulation coding information of transmit antenna feedback at described High-Speed Dedicated Physical Control Channel, needed the relative information of the self-adapting modulation coding information that the self-adapting modulation coding information that feeds back fed back with respect to the front in other respective transmit antenna feedbacks outside this transmitting antenna on first additional channel at that time.
21, method as claimed in claim 20 is characterized in that, feedback adaptive modulation coding information in receiving terminal latter two time slot in the different Transmission Time Intervals of described High-Speed Dedicated Physical Control Channel;
And the corresponding hybrid automatic retransmission request information of feedback in first time slot in the different Transmission Time Intervals of described High-Speed Dedicated Physical Control Channel.
22, method as claimed in claim 20 is characterized in that, receiving terminal also is reserved with the part Transmission Time Interval on described High-Speed Dedicated Physical Control Channel; And
The corresponding hybrid automatic retransmission request information of feedback in first time slot in the Transmission Time Interval of described reservation, and in latter two time slot, carry out discontinuous transmission process.
23, method as claimed in claim 20, it is characterized in that, receiving terminal is used in the Transmission Time Interval of the corresponding self-adapting modulation coding information of transmit antenna feedback at described High-Speed Dedicated Physical Control Channel, and the arbitrary transmit antenna feedback of other outside this transmitting antenna needed the relative information of Adaptive Modulation and Coding fed back at that time all the time on described first additional channel.
24, method as claimed in claim 20, it is characterized in that, receiving terminal is used in the Transmission Time Interval of the corresponding self-adapting modulation coding information of transmit antenna feedback at described High-Speed Dedicated Physical Control Channel, and other each transmitting antennas on described first additional channel outside this transmitting antenna feed back respectively needed the relative information of Adaptive Modulation and Coding fed back at that time.
25, method as claimed in claim 20, it is characterized in that, receiving terminal is used for carrying out discontinuous transmission process on described first additional channel in first time slot of the Transmission Time Interval of the corresponding self-adapting modulation coding information of transmit antenna feedback at described High-Speed Dedicated Physical Control Channel.
26, method as claimed in claim 21 is characterized in that, feeds back corresponding hybrid automatic retransmission request information to different transmit antennas respectively in first time slot of receiving terminal in the different Transmission Time Intervals of described High-Speed Dedicated Physical Control Channel.
27, method as claimed in claim 21 is characterized in that, in first time slot of receiving terminal in the different Transmission Time Intervals of described High-Speed Dedicated Physical Control Channel all the time to a corresponding hybrid automatic retransmission request information of transmit antenna feedback; And
Other each transmitting antennas on one second additional channel outside this transmitting antenna feed back corresponding hybrid automatic retransmission request information respectively.
28, method as claimed in claim 27 is characterized in that, receiving terminal preferential forward time slot by each Transmission Time Interval on this second additional channel feeds back corresponding hybrid automatic retransmission request information respectively to other each transmitting antennas; And
After the leaning on of each Transmission Time Interval, do not use time slot to carry out discontinuous transmission process.
29, method as claimed in claim 21 is characterized in that, in first time slot of receiving terminal in the different Transmission Time Intervals of described High-Speed Dedicated Physical Control Channel all the time to a corresponding hybrid automatic retransmission request information of transmit antenna feedback; And
The hybrid automatic retransmission request information that needs is fed back to other each transmitting antennas outside this transmitting antenna is fed back by the second different additional channels respectively.
30, method as claimed in claim 29, it is characterized in that receiving terminal feeds back the hybrid automatic retransmission request information that needs feed back to other each transmitting antennas respectively on first time slot in each Transmission Time Interval of the second different additional channels.
31, as the described method of 20～30 arbitrary claims, it is characterized in that the relative information of described Adaptive Modulation and Coding need at that time to refer to the information difference of the self-adapting modulation coding information that the self-adapting modulation coding information that feeds back fed back with respect to front the last time.
32, method as claimed in claim 31 is characterized in that, described self-adapting modulation coding information is a channel quality indication (CQI) information.
As claim 21,22,26,27,28,29 or 30 described methods, it is characterized in that 33, described hybrid automatic retransmission request information is that receiving terminal receives the information success message; Or be
Receiving terminal receives the information failed message;
Or be HARQ Preamble message; Or be
HARQ Postamble message.
34, a kind of information feedback device based on multi-antenna self-adaptive modulation coding is characterized in that, comprising:
First information feedback unit is used for receiving terminal and feeds back corresponding at that time self-adapting modulation coding information to different transmit antennas in the different Transmission Time Interval of High-Speed Dedicated Physical Control Channel;
The second feedback information unit, be used for described first information feedback unit and be used in the Transmission Time Interval of the corresponding self-adapting modulation coding information of transmit antenna feedback, needed the relative information of the self-adapting modulation coding information that the self-adapting modulation coding information that feeds back fed back with respect to the front in other respective transmit antenna feedbacks outside this transmitting antenna on the other additional channel at that time at described High-Speed Dedicated Physical Control Channel.
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