CN101997586A - Multi-carrier multi-antenna-based information feedback method and device - Google Patents
Multi-carrier multi-antenna-based information feedback method and device Download PDFInfo
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Abstract
The invention discloses a multi-carrier multi-antenna-based information feedback method and device. The method comprises the following steps: if the number of multiple carriers is more than two, additionally arranging a control channel for the carriers except the front two carriers, wherein the control channel is used for bearing the feedback information. Through the method of additionally arranging the control channel for the carriers except the front two carriers if the number of the multiple carriers is more than two, the problem that the precision of channel quality estimation and the precision of pre-coding vector estimation are reduced with the increase of carrier number when the carrier number exceeds two is solved, thus the application performance of multi-carrier multiple input multiple output (MIMO) is ensured.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of information feedback method and device based on multicarrier and multi-antenna.
Background technology
High-speed downlink packet inserts (High Speed Downlink Packet Access, abbreviate HSDPA as) be third generation partner program (3rd Generation PartnershipProiect, abbreviate 3GPP as) a kind of technology of in version 5 (Release-5), proposing, be used to improve the network data throughput of down direction (network is to terminal), the descending peak rate of its design can reach 14.4Mbps.
On physical layer design, HSDPA uses high speed down sharing physical channel (High SpeedPhysical Downlink Shared Channel at down direction, abbreviate HS-PDSCH as), be used to carry high-speed downlink shared transmission channel (High SpeedDownlink Shared Channel, abbreviate HS-DSCH as) data, simultaneously, HSDPA also uses High-Speed Shared Control Channel (High Speed Shared ControlChannel at down direction, abbreviate HS-SCCH as), before sending, corresponding HS-PDSCH sends, be used for notifying user equipment (User Equipment, abbreviate UE as) after some necessary informations of the HS-PDSCH that sends, comprise employed spreading code, modulator approach, the transmission block size, mix automatic repeat requests (Hybrid Automatic Repeat Request, abbreviate HARQ as) process, redundancy versions, the new data indication, the UE sign, thereby the UE by the appointment of UE sign correctly receives the data that sent, and other UE then can't correctly receive this data.At up direction, HSDPA uses the High-Speed Dedicated Physical Control Channel (High Speed Dedicated Physical Control Channel abbreviates HS-DPCCH as) of HS-DSCH.By this control channel, whether UE correctly receives a transmission block among the HS-DSCH to network-feedback, acknowledge character (Acknowledgement, abbreviate ACK as) for correctly receiving, non-acknowledge character (Non-Acknowledgement, abbreviate NACK as) for correctly not receiving, need to retransmit, network retransmits or sends new data in view of the above.Simultaneously, UE also feeds back a channel quality indication (Channel QualityIndicator abbreviates CQI as).The CQI table is predefined, and each CQI value is corresponding to the HS-DSCH subframe of a fixed transport block size, HS-PDSCH number, modulator approach.UE should feed back the CQI of a maximum, if represent that the HS-DSCH subframe of this CQI correspondence begins to transmit preceding 1 time slot in the HS-DPCCH subframe of carrying CQI and received by this UE, then the error probability of corresponding transmission block is no more than 10%, with this reference as this UE quality of wireless channel.
In the design of HS-DPCCH, there are 10 bit data to be used to carry HARQ-ACK information, there are 20 to be used to carry CQI information in addition.Each UE belongs to certain specific classification according to the ability difference, and totally 31 in its corresponding CQI table can be represented with 5 bit data, is encoded into 20, is mapped to the CQI bit field of HS-DPCCH.HARQ is two kinds of situations of ACK/NACK, is encoded into 10 by specific code book, is mapped to the HARQ-ACK bit field of HS-DPCCH.
After this, on the basis of HSDPA, 3GPP strengthens from many aspects.Multiple-input and multiple-output (Multiple Input Multiple Output abbreviates MIMO as) antenna technology is wherein a kind of method that improves the wireless channel transmission bandwidth.3GPP has adopted the MIMO technology at Rel-7, allows to transmit simultaneously maximum two transmission blocks (main transmission block and auxilliary transmission block) and give same UE in a 2ms TTI.For supporting the MIMO technology, transmitting terminal need modulate data on two incoherent antennas and send simultaneously, and the recipient also needs to receive data simultaneously from two incoherent antennas, and carries out demodulation.Identical with HSDPA is that UE needs feedback HARQ-ACK and CQI equally after receiving the HS-DSCH data.Different is, UE need feed back HARQ-ACK respectively to two HS-DSCH transmission blocks that receive simultaneously, and CQI also at two empty channels that divide, is designated as CQI1 and CQI2.In addition, UE also needs the required aerial array weights of feedback closed loop MIMO, and promptly the precoding weights maximize so that transmission block is big or small.The precoding weights have four: w1, w2, w3 and w4.Wherein, (w1 w2) forms main precoding vector, and the data of main transmission block are weighted; (w3 w4) then forms auxilliary precoding vector, and the data of assisting transmission block are weighted.Main precoding vector is used to transmit main transmission block, and auxilliary precoding vector is used to transmit auxilliary transmission block.In four precoding weights, w1 and w3 are fixed value, and w2 and w4 have the mark-hold relation, and therefore, UE only need feed back precoding weight w 2, and this is to realize by precoding control indication (Precoding ControlIndicator abbreviates PCI as).In desirable 4 values of w2 one is so PCI is 2 bit data.Under the MIMO situation, use new CQI table, the CQI table of the UE classification correspondence that each is specific is 15, represents that with 4 bit data CQI1/CQI2 needs 8 altogether.It is 10 bit data that thereby PCI/CQI combines, and is encoded into 20, is mapped to the CQI/PCI bit field (being original C QI bit field) of HS-DPCCH.HARQ then to many kinds of situation combinations of the ACK/NACK under single current and the double-current situation, is encoded into 10 by specific code book, is mapped to the HARQ-ACK bit field of HS-DPCCH.
The MIMO technology improves bandwidth by increasing number of antennas simultaneously transmit leg and recipient.If do not adopt the MIMO technology, also can adopt the method that increases carrier wave to improve bandwidth.In order further to improve downlink bandwidth, 3GPP has introduced dual carrier HSDPA technology (Dual Cell HSDPA abbreviates DC-HSDPA as) at Rel-8, utilizes two adjacent carriers (main carrier and auxilliary carrier wave) to improve downlink bandwidth.Main carrier and auxilliary carrier wave are provided with HS-PDSCH and HS-SCCH respectively simultaneously, and independently dispatch.For having the UE that receives the DC-HSDPA ability, can receive the HSDPA data at main carrier and auxilliary carrier wave simultaneously.Identical with single carrier HSDPA is that UE needs feedback HARQ--ACK and CQI equally after receiving the HS-DSCH data; Different is, UE need feed back HARQ-ACK respectively to two HS-DSCH transmission blocks that receive simultaneously on two carrier waves, and CQI also at two carrier waves, is designated as CQI1 and CQI2.Totally 31 in its corresponding CQI table of each CQI represents that with 5 bit data CQI1 and CQI2 be totally 10 bit data, is encoded into 20 bit data, is mapped to the CQI bit field of HS-DPCCH.HARQ is the many kinds of situation combinations of ACK/NACK under single carrier and the multicarrier situation, is encoded into 10 by specific code book, is mapped to the HARQ-ACK bit field of HS-DPCCH.
In order further to improve downlink bandwidth, 3GPP makes up DC-HSDPA and MIMO in Rel-9.In the HS-DPCCH design, take all factors into consideration from performance and power consumption, still adopt a HS-DPCCH to be used for feedback information.HARQ is the many kinds of situation combinations of ACK/NACK under main carrier and auxilliary carrier wave, single current and the multithread situation, is encoded into 10 by specific code book, is mapped to the HARQ-ACK bit field of HS-DPCCH.PCI need feed back respectively main carrier and auxilliary carrier wave, is designated as PCI1, PCI2, totally 4 bit data.For CQI, use the MIMO CQI table definition of Rel-7, CQI1/CQI2 is all arranged on each carrier wave, be 8 bit data, main carrier and auxilliary carrier wave are 16 bit data altogether.In other words, the CQI/PCI of main carrier is 10 bit data, and the CQI/PCI of auxilliary carrier wave also is 10 bit data.In the HS-DPCCH transmission, the CQI/PCI of main carrier is totally 10 bit data, is encoded into 20, is mapped to the CQI/PCI bit field of one of them subframe in continuous two subframes of HS-DPCCH; The CQI/PCI of auxilliary carrier wave is totally 10 bit data, is encoded into 20, is mapped to the CQI/PCI bit field of the another one subframe in continuous two subframes of HS-DPCCH.That is to say that the CQI/PCI data of main carrier and auxilliary carrier wave are transmitted on HS-DPCCH by time-multiplexed mode.
The method that the CQI/PCI data of this main carrier and auxilliary carrier wave are transmitted on HS-DPCCH by time-multiplexed mode, the influence of the precision of estimating for the precision of channel quality estimation and precoding vector is bigger.For transmit leg, how to dispatch receiving side data (whether send data, with great speed send, single current still double fluid send) depend on the channel quality indicator (CQI) and the precoding control indication PCI of transmit leg feedback to a great extent.If the precision that the precision of channel quality estimation and precoding vector are estimated is low excessively, can seriously influence the scheduling result of scheduler, the throughput of system is caused great influence.Particularly after carrier number surpasses two, if the method that continues to take the CQI/PCI data of this different carrier on single HS-DPCCH, to transmit by time-multiplexed mode, the precision that the precision of channel quality estimation and precoding vector are estimated will reduce along with the increase of carrier number, and the performance of multicarrier MIMO will be subjected to very big influence.
Therefore, need a kind of new CQI/PCI feedback method, to solve after carrier number surpasses two the problem that the precision that the precision of channel quality estimation and precoding vector are estimated reduces along with the increase of carrier number.
Summary of the invention
After surpassing two at carrier number in the correlation technique, the problem that the precision that the precision of channel quality estimation and precoding vector are estimated reduces along with the increase of carrier number and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of feedback information scheme based on multicarrier and multi-antenna, to address the above problem.
According to an aspect of the present invention, provide a kind of information feedback method based on multicarrier and multi-antenna.
Information feedback method according to multicarrier and multi-antenna of the present invention comprises: when the number of carriers of multicarrier surpassed two, for the carrier wave that exceeds beyond preceding two carrier waves increases control channel, wherein, control channel was used to carry feedback information.
Preferably, for the carrier wave increase control channel that exceeds beyond preceding two carrier waves comprises: if exceed the quantity of carrier wave is even number, then for per two carrier waves that exceed in the carrier wave increase a control channel, wherein, control channel is used to carry the feedback information of two carrier waves.
Preferably, for the carrier wave increase control channel that exceeds beyond preceding two carrier waves comprises: if exceed the quantity of carrier wave is odd number, then increase a control channel for a carrier wave that exceeds in the carrier wave, wherein, control channel is used to carry the feedback information of single carrier wave, per two carrier waves that residue except that this carrier wave exceeds in the carrier wave increase a control channel, and wherein, control channel is used to carry the feedback information of two carrier waves.
Preferably, feedback information comprises: mix automatic repeat requests, channel quality indication and precoding control indication.
Preferably, when control channel was used for the feedback of two carrier wave feedback informations, the time division multiplexing mode transmission was adopted in indication of the channel quality of two carrier waves and precoding control indication.
Preferably, when control channel is used for the feedback of single carrier feedback information, use control channel separately by single carrier.
Preferably, control channel adopts the code book coded system to the transmission that mixes automatic repeat requests.
Preferably, mixing automatic repeat requests all transmits in the control channel of each control subframe.
Preferably, multicarrier is continuous carrier or discontinuous carrier.
Preferably, multicarrier comprises: the transmission multicarrier of network side and the transmission multicarrier of terminal.
Preferably, control channel transmits in any one or a plurality of transmission carrier wave of terminal.
Preferably, one or two carrier wave of control channel correspondence is any carrier wave in the multicarrier.
According to a further aspect in the invention, provide a kind of information feedback device based on multicarrier and multi-antenna.
Information feedback device according to multicarrier and multi-antenna of the present invention comprises: increase module, be used for when the number of carriers of multicarrier surpasses two, for the carrier wave that exceeds beyond preceding two carrier waves increases control channel, wherein, control channel is used to carry feedback information.
By the present invention, adopt when the number of carriers of multicarrier surpasses two, be the method that carrier wave increases control channel that exceeds beyond preceding two carrier waves, solved after carrier number surpasses two, the problem that the precision that the precision of channel quality estimation and precoding vector are estimated reduces along with the increase of carrier number, and then guaranteed the application performance of multicarrier MIMO.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the control channel HS-DPCCH schematic diagram according to correlation technique;
Fig. 2 is the two carrier wave MIMO feedback information schematic diagrames according to correlation technique;
Fig. 3 is the schematic diagram according to the embodiment of the invention 1 (three carrier wave MIMO feedback information);
Fig. 4 is the schematic diagram according to the embodiment of the invention 2 (four carrier wave MIMO feedback information);
Fig. 5 is the schematic diagram according to the embodiment of the invention 3 (five carrier wave MIMO feedback information);
Fig. 6 is the schematic diagram according to the embodiment of the invention 4 (six carrier wave MIMO feedback information).
Embodiment
Functional overview
After considering that carrier number surpasses two in the correlation technique, the problem that the precision that the precision of channel quality estimation and precoding vector are estimated reduces along with the increase of carrier number, the invention provides feedback information scheme based on multicarrier and multi-antenna, when the number of carriers of multicarrier surpasses two, for the carrier wave that exceeds beyond preceding two carrier waves increases control channel, wherein, control channel is used to carry feedback information, can guarantee the application performance of multicarrier MIMO.
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Method embodiment
According to embodiments of the invention, provide a kind of information feedback method based on multicarrier and multi-antenna.This method comprises: when the number of carriers of multicarrier surpassed two, for the carrier wave that exceeds beyond preceding two carrier waves increases control channel, wherein, control channel was used to carry feedback information.
Particularly, when carrier number surpasses two,, exceed control channel of the corresponding increase of per two carrier waves of part, be used to carry the feedback information of two carrier waves if carrier number is an even number; If carrier number is an odd number, the control channel of the corresponding increase of one of them carrier wave that exceeds part, be used to carry the feedback information of single carrier wave, remaining per two carrier waves of part that exceed increase a control channel accordingly, are used to carry the feedback information of two carrier waves.
Above-mentioned feedback information comprises: mix automatic repeat requests, channel quality indication and precoding control indication.
Wherein, when above-mentioned control channel was used for the feedback of two carrier wave multi-input/output antenna feedback informations, the time division multiplexing mode transmission was adopted in indication of the channel quality of two carrier waves and precoding control indication; When above-mentioned control channel is used for the feedback of single carrier multi-input/output antenna feedback information, by the private control channel of single carrier; Above-mentioned control channel adopts the code book coded system to the transmission that mixes automatic repeat requests; Mixing automatic repeat requests all transmits in the control channel of each control subframe.
Need to prove that above-mentioned multicarrier is a continuous carrier, or discontinuous carrier; Above-mentioned multicarrier comprises: the transmission multicarrier of transmit leg (for example, network side) and recipient's's (for example, terminal) transmission multicarrier, and wherein, the transmission multicarrier number of transmit leg and recipient's transmission multicarrier can be inequality, also can be identical; Control channel in the said method transmits in recipient's any one or a plurality of transmission carrier wave; Control channel in the said method, one or two carrier wave of its correspondence are not (that is, be in the above-mentioned multicarrier any carrier wave) fixed.
In order to be expressly understood the present invention more, below related content of the prior art is described.
Fig. 1 is the employing FEEDBACK CONTROL channel HS-DPCCH schematic diagram according to correlation technique, and as shown in Figure 1, a radio frames Tf is 10ms, and each HS-DPCCH subframe is 2ms, takies 3 time slots.First time slot in each HS-DPCCH subframe is used to carry HARQ-ACK information, can carry 10 bit data altogether.Thereafter 2 time slots are used to carry CQI/PCI information, can carry 20 bit data altogether.Wherein, first time slot is T time slot (slot), has comprised 2560 chips (chips); Thereafter 2 time slots are 2 * T time slot (slot), have comprised 5120 chips (chips).
Fig. 2 is the two carrier wave MIMO feedback information schematic diagrames according to correlation technique, as shown in Figure 2, in recipient's transmission main carrier,, comprise and mix automatic repeat requests (HARQ), channel quality indication (CQI) and precoding control indication (PCI) with the two required feedback informations of carrier wave MIMO of control channel HS-DPCCH feedback.MIMO single current or double-current HARQ information are encoded into 10 bit data by specific code book on two carrier waves, transmit at the HARQ of each HS-DPCCH subframe bit field.The PCI of main carrier and CQI totally 10 bit data are encoded into 20 bit data, the CQI/PCI bit field transmission of one of them subframe in continuous two subframes of HS-DPCCH.The PCI of auxilliary carrier wave and CQI totally 10 bit data also are encoded into 20 bit data, the CQI/PCI bit field transmission of the another one subframe in continuous two subframes of HS-DPCCH.
Be described in detail below in conjunction with the implementation procedure of example the embodiment of the invention.
Embodiment 1
Fig. 3 is the schematic diagram according to the embodiment of the invention 1 (three carrier wave MIMO feedback information), as shown in Figure 3, is used for three carrier wave MIMO feedback information.Compared with prior art, increased a control channel HS-DPCCH
2Z.HS-DPCCH
1And HS-DPCCH
2Can be in same carrier wave, also can be in different carrier waves.In three carrier waves wherein the feedback information of two carrier waves (being designated as carrier wave 1, carrier wave 2) at HS-DPCCH
1Middle transmission, the feedback information of surplus next carrier wave (being designated as carrier wave 3) is at HS-DPCCH
2Middle transmission.The HARQ information of MIMO single current or double fluid is encoded into 10 bit data by specific code book on carrier wave 1 and the carrier wave 2, at each HS-DPCCH
1The HARQ bit field transmission of subframe.The PCI of carrier wave 1 and CQI totally 10 bit data are encoded into 20 bit data, at HS-DPCCH
1The CQI/PCI bit field transmission of one of them subframe in continuous two subframes.And the PCI of carrier wave 2 and CQI totally 10 bit data also be encoded into 20 bit data, at HS-DPCCH
1The CQI/PCI bit field transmission of the another one subframe in continuous two subframes.The HARQ information of MIMO single current or double fluid is encoded into 10 bit data by specific code book on the carrier wave 3, at each HS-DPCCH
2The HARQ bit field transmission of subframe.The PCI of carrier wave 3 and CQI totally 10 bit data are encoded into 20 bit data, at each HS-DPCCH
2The CQI/PCI bit field transmission of subframe.
Fig. 4 is the schematic diagram according to the embodiment of the invention 2 (four carrier wave MIMO feedback information), as shown in Figure 4, is used for four carrier wave MIMO feedback information.Embodiment 2 is HS-DPCCH with the difference of embodiment 1
2On.In embodiment 2, the HARQ information of MIMO single current or double fluid is encoded into 10 bit data by specific code book on carrier wave 3 and the carrier wave 4, at each HS-DPCCH
2The HARQ bit field transmission of subframe.The PCI of carrier wave 3 and CQI totally 10 bit data are encoded into 20 bit data, at HS-DPCCH
2The CQI/PCI bit field transmission of one of them subframe in continuous two subframes.And the PCI of carrier wave 4 and CQI totally 10 bit data also be encoded into 20 bit data, at HS-DPCCH
2The CQI/PCI bit field transmission of the another one subframe in continuous two subframes.
Embodiment 3
Fig. 5 is the schematic diagram according to the embodiment of the invention 3 (five carrier wave MIMO feedback information), as shown in Figure 5, is used for five carrier wave MIMO feedback information.Embodiment 3 compares with embodiment 1, has increased a control channel.HS-DPCCH
1Be used to feed back the wherein information of carrier wave 1 and carrier wave 2, HS-DPCCH
2Be used to feed back the wherein information of carrier wave 3 and carrier wave 4, HS-DPCCH
3Be used to feed back the wherein information of carrier wave 5.
Embodiment 4
Fig. 6 is the schematic diagram according to the embodiment of the invention 4 (six carrier wave MIMO feedback information), as shown in Figure 6, is used for six carrier wave MIMO feedback information.Embodiment 4 compares with embodiment 2, has increased a control channel.HS-DPCCH
1Be used to feed back the wherein information of carrier wave 1 and carrier wave 2, HS-DPCCH
2Be used to feed back the wherein information of carrier wave 3 and carrier wave 4, HS-DPCCH
3Be used to feed back the wherein information of carrier wave 5 and carrier wave 6.
Device embodiment
According to embodiments of the invention, a kind of information feedback device based on multicarrier and multi-antenna is provided, this device comprises the increase module, be used for when the number of carriers of multicarrier surpasses two, for the carrier wave that exceeds beyond preceding two carrier waves increases control channel, wherein, control channel is used to carry feedback information.
Particularly, when carrier number surpasses two,, exceed control channel of the corresponding increase of per two carrier waves of part, be used to carry the feedback information of two carrier waves if carrier number is an even number; If carrier number is an odd number, the control channel of the corresponding increase of one of them carrier wave that exceeds part, be used to carry the feedback information of single carrier wave, remaining per two carrier waves of part that exceed increase a control channel accordingly, are used to carry the feedback information of two carrier waves.
Above-mentioned feedback information comprises: mix automatic repeat requests, channel quality indication and precoding control indication.
Wherein, when above-mentioned control channel was used for the feedback of two carrier wave feedback informations, the time division multiplexing mode transmission was adopted in indication of the channel quality of two carrier waves and precoding control indication; When above-mentioned control channel is used for the feedback of single carrier feedback information, by the private control channel of single carrier; Above-mentioned control channel adopts the code book coded system to the transmission that mixes automatic repeat requests; Mixing automatic repeat requests all transmits in the control channel of each control subframe.
Need to prove that above-mentioned multicarrier is a continuous carrier, or discontinuous carrier; Above-mentioned multicarrier comprises: the transmission multicarrier of transmit leg and recipient's transmission multicarrier, and wherein, the transmission multicarrier number of transmit leg and recipient's transmission multicarrier can be inequality; Above-mentioned control channel transmits in recipient's any one or a plurality of transmission carrier wave; One or two carrier wave of above-mentioned control channel correspondence is not fixed.
In sum, pass through the above embodiment of the present invention, adopt when the number of carriers of multicarrier surpasses two, be the method that carrier wave increases control channel that exceeds except that preceding two carrier waves, solved after carrier number surpasses two, the problem that the precision that the precision of channel quality estimation and precoding vector are estimated reduces along with the increase of carrier number, and then guaranteed the application performance of multicarrier MIMO.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. the information feedback method based on multicarrier and multi-antenna is characterized in that, comprising:
When the number of carriers of multicarrier surpassed two, for the carrier wave that exceeds beyond preceding two carrier waves increases control channel, wherein, described control channel was used to carry feedback information.
2. method according to claim 1 is characterized in that, for the carrier wave increase control channel that exceeds beyond preceding two carrier waves comprises:
If the described quantity that exceeds carrier wave is even number, then for described per two carrier waves that exceed in the carrier wave increase a control channel, wherein, described control channel is used to carry the feedback information of two carrier waves.
3. method according to claim 1 is characterized in that, for the carrier wave increase control channel that exceeds beyond preceding two carrier waves comprises:
If the described quantity that exceeds carrier wave is odd number, then increase a control channel for a described carrier wave that exceeds in the carrier wave, wherein, described control channel is used to carry the feedback information of single carrier wave, per two carrier waves that residue except that this carrier wave exceeds in the carrier wave increase a control channel, wherein, described control channel is used to carry the feedback information of two carrier waves.
4. according to each described method in the claim 1 to 3, it is characterized in that described feedback information comprises: mix automatic repeat requests, channel quality indication and precoding control indication.
5. method according to claim 4 is characterized in that, when described control channel was used for the feedback of two carrier wave feedback informations, the time division multiplexing mode transmission was adopted in the described channel quality indication and the indication of described precoding control of two carrier waves.
6. method according to claim 4 is characterized in that, when described control channel is used for the feedback of single carrier feedback information, uses described control channel separately by single carrier.
7. method according to claim 4 is characterized in that, described control channel adopts the code book coded system to the transmission of the automatic repeat requests of described mixing.
8. method according to claim 4 is characterized in that, the automatic repeat requests of described mixing is all transmitted in the described control channel of each control subframe.
9. according to each described method in the claim 1 to 3, it is characterized in that described multicarrier is continuous carrier or discontinuous carrier.
10. according to each described method in the claim 1 to 3, it is characterized in that described multicarrier comprises:
The transmission multicarrier of network side and the transmission multicarrier of terminal.
11. according to each described method in the claim 1 to 3, described control channel transmits in any one or a plurality of transmission carrier wave of terminal.
12. according to each described method in the claim 1 to 3, one or two carrier wave of described control channel correspondence is any carrier wave in the described multicarrier.
13. the information feedback device based on multicarrier and multi-antenna is characterized in that, comprising:
Increase module, be used for when the number of carriers of multicarrier surpasses two, for the carrier wave that exceeds beyond preceding two carrier waves increases control channel, wherein, described control channel is used to carry feedback information.
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| CN103516494A (en) * | 2012-06-21 | 2014-01-15 | 华为技术有限公司 | Channel information feedback method and user equipment |
| CN103516494B (en) * | 2012-06-21 | 2016-12-21 | 华为技术有限公司 | Channel information feedback method and subscriber equipment |
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