CN102237980B - Method and equipment for indicating amount of ACK (Acknowledgement)/NACK (Negative Acknowledgement) information in multicarrier system - Google Patents
Method and equipment for indicating amount of ACK (Acknowledgement)/NACK (Negative Acknowledgement) information in multicarrier system Download PDFInfo
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Abstract
The embodiment of the invention discloses a method and equipment for indicating the amount of ACK (Acknowledgement)/NACK (Negative Acknowledgement) information in a multicarrier system. Due to the adoption of the technical scheme of the embodiment of the invention, for the condition that the ACK/NACK information combination possibly exists in an LTE-A (Long-Term Evolution-Advanced) system, a base station can inform terminal equipment of the amount of ACK/NACK information for combining through a downlink distribution index, the terminal equipment can judge whether data packet loss occurs, corresponding ACK/NACK information feedback is performed, and the accuracy of ACK/NACK information feedback is enhanced.
Description
Technical field
The present invention relates to communication technical field, particularly indicating means and the equipment of ACK/NACK information content in a kind of multicarrier system.
Background technology
For long-term evolution multi-carrier system, for supporting the system bandwidth wider than LTE system, such as 100MHz, a kind of may be the frequency spectrum that directly distributes 100M bandwidth, as shown in Figure 1; A kind of may be to distribute to some spectrum aggregatings of existing system, gather into large bandwidth and supply with long-term evolution multi-carrier system use, now in system, up-downgoing carrier wave can asymmetricly configure, be that user may take N carrier wave and carries out downlink transfer, M carrier wave carries out uplink, as shown in Figure 2.When the data on each descending carrier are independently carried out coding and decoding, user carries out respectively HARQ (HybridAuto Repeat Request by the packet on each carrier wave, mixed automatic retransfer request) repeat requests feedback, be ACK (ACKnowledge Character, acknowledge character)/NACK (Not ACKnowledge Character, non-acknowledge character) information feedback.Therefore, user may be simultaneously to a plurality of ACK/NACK information of base station feedback in a sub-frame of uplink.
LTE-A (Long Term Evolution Advanced, senior Long Term Evolution) system is determined and can be supported at most 5 carrier waves to carry out polymerization at present.Need in same subframe, carry out a plurality of descending carriers and the descending sub frame of ACK/NACK feedback, hereinafter referred to as " feedback window ".
For FDD (Frequency Division Duplex, Frequency Division Duplexing (FDD)) system, the descending carrier quantity N of the big or small L=UE polymerization of feedback window.For TDD (Time Division Duplex, time division duplex) system, big or small L=N * the M of feedback window, wherein N is the descending carrier number of UE polymerization, the descending sub frame quantity that M correspondence is fed back at same sub-frame of uplink, for different uplink-downlink configuration and sub-frame of uplink, the value of M is different, i.e. the quantity of each hurdle K in table 1.
Table 1Downlink association set index K:{k
0, k
1... k
m-1for TDD
In LTE TDD system, base station sends DAI (Downlink AssignmentIndex in descending control signaling, descending distribution index), to help UE to determine the scheduling situation of packet in feedback window, wherein the DAI in DL grant is counter, represents that the ACK/NACK that this DL grant is corresponding is which the dynamic dispatching ACK/NACK in feedback window; DAI in UL grant represents the sum of dynamic dispatching ACK/NACK in corresponding feedback window.
In realizing the process of the embodiment of the present invention, applicant finds that prior art at least exists following problem:
In LTE-A carrier aggregation system, the ACK/NACK amount of bits of user feedback is subject in limited time, will merge part ACK/NACK information to be feedback, to reduce the amount of bits of feedback information.For helping UE to determine whether data-bag lost, base station will send DAI in descending scheduling signaling, at present the design of DAI also not had to definite scheme.
Summary of the invention
The embodiment of the present invention provides indicating means and the equipment of ACK/NACK information content in a kind of multicarrier system, solves in the situation that may existing ACK/NACK information to merge, and terminal equipment judges whether the problem of data-bag lost.
For achieving the above object, the embodiment of the present invention provides the indicating means of ACK/NACK information content in a kind of multicarrier system on the one hand, comprising:
Base station judges whether the corresponding ACK/NACK information of downlink data information that in current system, a descending carrier in a plurality of descending carriers sends merges;
If judgment result is that, be, descending distribution index is carried in described base station in the corresponding Downlink Control Information of described descending carrier, the quantity information of the downlink data information that the ACK/NACK that described descending distribution index is carried out for the downlink data information that represents to participate in described descending carrier and send merges.
On the other hand, the embodiment of the present invention also provides a kind of base station, comprising:
Judge module, whether the corresponding ACK/NACK information of downlink data information sending for the descending carrier judging in a plurality of descending carriers of current system merges;
Generation module, for when judgment result is that of described judge module is, generate descending distribution index, the quantity information of the downlink data information that the ACK/NACK that described descending distribution index is carried out for the downlink data information that represents to participate in described descending carrier and send merges;
Sending module, for when judgment result is that of described judge module is, for described descending carrier sends the Downlink Control Information that carries the descending distribution index that described generation module generates.
On the other hand, the embodiment of the present invention also provides the indicating means of ACK/NACK information content in a kind of multicarrier system, comprising:
Terminal equipment identifies in the Downlink Control Information that receives base station transmission whether carry descending distribution index;
If carried, described terminal equipment judges that whether the quantity information of the ACK/NACK information merging that described descending distribution index is represented is consistent with the quantity information of current received downlink data information;
If consistent, described terminal equipment sends ACK information to described base station, if inconsistent, described terminal equipment sends nack message to described base station.
On the other hand, the embodiment of the present invention also provides a kind of terminal equipment, comprising:
Identification module, whether the Downlink Control Information that receives base station transmission for identifying carries descending distribution index;
Judge module, for at the recognition result of described identification module when carrying, described terminal equipment judges that whether the quantity information of the ACK/NACK information merging that described descending distribution index is represented consistent with the quantity information of current received downlink data information;
Sending module, for when judgment result is that of described judge module is consistent, sends ACK information to described base station, or when judgment result is that of described judge module is inconsistent, to described base station, sends nack message.
Compared with prior art, the embodiment of the present invention has the following advantages:
By the technical scheme of the application embodiment of the present invention, in LTE-A system, for the situation that may exist ACK/NACK information to merge, the quantity of the ACK/NACK information that base station can merge by descending distribution index notification terminal equipment, make terminal equipment can judge whether accordingly data-bag lost, thereby carry out corresponding ACK/NACK information feedback, improved the accuracy of ACK/NACK information feedback.
Accompanying drawing explanation
Fig. 1 is single-frequency spectral system schematic in prior art;
Fig. 2 is prior art intermediate frequency spectrum paradigmatic system schematic diagram;
Fig. 3 is that the indicating means of ACK/NACK information content in a kind of multicarrier system of proposing of the embodiment of the present invention is at the schematic flow sheet of base station side;
Fig. 4 is that the indicating means of ACK/NACK information content in a kind of multicarrier system of proposing of the embodiment of the present invention is at the schematic flow sheet of terminal equipment side;
Fig. 5 is the schematic diagram that carries out the merging of ACK/NACK information in a kind of concrete application scenarios of embodiment of the present invention proposition;
Fig. 6 is the schematic diagram that carries out the merging of ACK/NACK information in a kind of concrete application scenarios of embodiment of the present invention proposition;
Fig. 7 is the structural representation of a kind of base station of embodiment of the present invention proposition;
Fig. 8 is the structural representation of a kind of terminal equipment of embodiment of the present invention proposition.
Embodiment
As stated in the Background Art, in LTE-A system, base station polymerization a plurality of descending carriers while sending data to user, the ACK/NACK amount of bits of user feedback is subject in limited time, will merge part ACK/NACK information to be feedback, to reduce the amount of bits of feedback information.If the data-bag lost in merging window, and other packets all correctly receive, UE will feeding back ACK, the packet that base station can retransmission of lost, thus cause UE reception reliability to decline.Therefore, a kind of method that UE of help judges whether data-bag lost need to be proposed.
In order to achieve the above object, as shown in Figure 3, be the schematic flow sheet of the indicating means of ACK/NACK information content in a kind of multicarrier system of embodiment of the present invention proposition, the method specifically comprises the following steps:
Step S301, base station judge whether the corresponding ACK/NACK information of downlink data information that in current system, a descending carrier in a plurality of descending carriers sends merges.
If judgment result is that to be, execution step S302;
If the determination result is NO, execution step S303.
Descending distribution index is carried in step S302, base station in the corresponding Downlink Control Information of descending carrier.
The quantity information of the downlink data information that the ACK/NACK that wherein, descending distribution index is carried out for the downlink data information that represents to participate in described descending carrier and send merges.
Further, the quantity information of the downlink data information that the ACK/NACK that descending distribution index is carried out for the downlink data information that represents to participate in described descending carrier and send merges, is specially:
The quantitative value of the ACK/NACK information that the numeric representation of descending distribution index merges; Or,
The parity of the quantity of the ACK/NACK information that the numeric representation of descending distribution index merges.
The descending distribution index that represents that the corresponding ACK/NACK information of descending carrier does not merge is carried in step S303, base station in the corresponding Downlink Control Information of descending carrier, or does not carry descending distribution index.
Corresponding, descending distribution index represents that the corresponding ACK/NACK information of descending carrier does not merge, and is specially:
The quantitative value of the ACK/NACK information that the numeric representation of descending distribution index merges is 1; Or,
The parity of the quantity of the ACK/NACK information that the numeric representation of descending distribution index merges is odd number.
Said process is that the indicating means of ACK/NACK information content in a kind of multicarrier system of proposing of the embodiment of the present invention is in the application flow of base station side, correspondingly, the embodiment of the present invention is further described as follows in the corresponding processing procedure of terminal equipment side the technical program:
As shown in Figure 4, in a kind of multicarrier system proposing for the embodiment of the present invention, the indicating means of ACK/NACK information content, at the schematic flow sheet of terminal equipment side, specifically comprises the following steps:
Step S401, terminal equipment identify in the Downlink Control Information that receives base station transmission whether carry descending distribution index.
If carried, execution step S402;
If do not carried, execution step S405.
Step S402, terminal equipment judge that whether the quantity information of the ACK/NACK information merging that descending distribution index is represented is consistent with the quantity information of current received downlink data information.
If consistent, execution step S403;
If inconsistent, execution step S404.
Wherein, the quantity information of the ACK/NACK information merging that descending distribution index is represented, is specially:
The quantitative value of the ACK/NACK information that the numeric representation of descending distribution index merges; Or,
The parity of the quantity of the ACK/NACK information that the numeric representation of descending distribution index merges.
Wherein, descending distribution index, can also represent that the corresponding ACK/NACK information of descending carrier does not merge, and is specially:
The quantitative value of the ACK/NACK information that the numeric representation of descending distribution index merges is 1; Or,
The parity of the quantity of the ACK/NACK information that the numeric representation of descending distribution index merges is odd number.
Step S403, terminal equipment send ACK information to base station.
Step S404, terminal equipment send nack message to base station.
Step S405, terminal equipment determine whether the corresponding ACK/NACK information of downlink data information that the corresponding descending carrier of Downlink Control Information sends merges.
Step S406, terminal equipment judge whether to receive the downlink data information that the corresponding descending carrier of Downlink Control Information sends.
If received, execution step S403;
If do not received, execution step S404.
Compared with prior art, the embodiment of the present invention has the following advantages:
By the technical scheme of the application embodiment of the present invention, in LTE-A system, for the situation that may exist ACK/NACK information to merge, the quantity of the ACK/NACK information that base station can merge by descending distribution index notification terminal equipment, make terminal equipment can judge whether accordingly data-bag lost, thereby carry out corresponding ACK/NACK information feedback, improved the accuracy of ACK/NACK information feedback.
Below, in conjunction with concrete application scenarios, the technical scheme that the embodiment of the present invention is proposed describes.
In carrier aggregation system, the ACK/NACK amount of bits of user feedback is subject in limited time, will merge part ACK/NACK information to be feedback, to reduce the amount of bits of feedback information.Merging can adopt the method for Rel-8 to carry out, when in same " merging window ", the whole receptions of the packet of all transmission are correct, and feeding back ACK; Arbitrary packet receives mistake, feeds back NACK; If find, merge in window and have data-bag lost, feed back NACK.
While merging, for helping UE to determine whether data-bag lost, base station will send DAI in descending scheduling signaling, in order to notify the sum of the ACK/NACK of dynamic dispatching in the corresponding merging window of this descending control signaling of UE.
In concrete application scenarios, DAI information can consist of 1 bit, " 0 " represent dynamic dispatching ACK/NACK add up to 1 or 2 (or being strange/even number), " 1 " represent dynamic dispatching ACK/NACK add up to 2 or 1 (or being idol/odd number).
It should be noted that, the size of concrete DAI information, and Rule content is set accordingly can adjusts as required, such variation can't affect protection scope of the present invention.
The frequency domain of below take merges (the corresponding ACK/NACK of different descending carriers in same descending sub frame being merged) and describes as example.
For LTE-A FDD system, if base station activation 5 descending carriers to UE, send data (single codeword transmission), and UE can only feed back 4 bit ACK/NACK at most at every turn, UE need to treat feeding back ACK/nack message and carries out part merging.
If adopt mode as shown in Figure 5,5 carrier waves have been divided to 1 and merged window, merge the ACK/NACK information of the corresponding descending carrier 4 of PDCCH3 and PDCCH4 and descending carrier 5, corresponding, DAI is set
pDCCH3=DAI
pDCCH4=2, wherein, DAI
pDCCHxrepresent the DAI value in PDCCHx.
For PDCCH1 and PDCCH2, because the feeding back ACK/nack message of its corresponding carrier wave does not merge, so, DAI information bit can be set, or, for keeping the consistency of descending control signaling, also can retain DAI information bit, and DAI is set
pDCCH1=DAI
pDCCH2=1.
UE, after receiving the data of base station transmission, processes as follows:
Determine in descending carrier 1 that, without transfer of data, making b1 is NACK.
Data on descending carrier 2 and descending carrier 3 are carried out to decoding and generate corresponding b2, b3, if correctly received, feeding back ACK, if data-bag lost feeds back NACK.
By PDCCH3 and the corresponding ACK/NACK information of PDCCH4 are merged and generates b4, if the corresponding packet of PDCCH3 and PDCCH4 is all correctly received, feeding back ACK; If the corresponding arbitrary packet decoding failure of PDCCH3 and PDCCH4, feeds back NACK; If UE has only received a packet within merging window, feed back NACK.
Corresponding, when many codeword transmission, first UE will merge the corresponding ACK/NACK information of different code words in same resource, make each resource correspondence bit ACK/NACK information to be feedback, and then process in the manner described above.
Under another kind of scene, for LTE-A TDD system, if base station activation 5 descending carriers to UE, send data (single codeword transmission), and UE can only feed back 12 bit ACK/NACK at most at every turn, UE need to treat feeding back ACK/nack message and carries out part merging.
If adopt mode as shown in Figure 6,5 carrier waves have been divided to 2 and merged window, merge descending carrier 1 and descending carrier 2, and the ACK/NACK information of corresponding descending carrier 4 and descending carrier 5, corresponding, DAI is set
pDCCH1=DAI
pDCCH8=1, DAI
pDCCH3=DAI
pDCCH4=DAI
pDCCH5=DAI
pDCCH6=2, wherein, DAI
pDCCHxrepresent the DAI value in PDCCHx.
For PDCCH2 and PDCCH7, because the feeding back ACK/nack message of its corresponding carrier wave does not merge, DAI information bit can be set, or, for keeping the consistency of descending control signaling, also can retain DAI information bit, and DAI
pDCCH2=DAI
pDCCH7=1.
UE, after receiving the data of base station transmission, processes as follows:
UE is known DAI
pDCCH1=DAI
pDCCH8=1, therefore, do not need PDCCH1 and the corresponding ACK/NACK information of PDCCH8 to merge processing.
Know DAI
pDCCH3=DAI
pDCCH4=DAI
pDCCH5=DAI
pDCCH6=2, need PDCCH3 and PDCCH4, the corresponding ACK/NACK information of PDCCH5 and PDCCH6 merges, and concrete method as previously mentioned, is not repeated.
Equally, corresponding, when many codeword transmission, first UE will merge the corresponding ACK/NACK information of different code words in same resource, make each resource correspondence bit ACK/NACK information to be feedback, and then process in the manner described above.
Compared with prior art, the embodiment of the present invention has the following advantages:
By the technical scheme of the application embodiment of the present invention, in LTE-A system, for the situation that may exist ACK/NACK information to merge, the quantity of the ACK/NACK information that base station can merge by descending distribution index notification terminal equipment, make terminal equipment can judge whether accordingly data-bag lost, thereby carry out corresponding ACK/NACK information feedback, improved the accuracy of ACK/NACK information feedback.
In order to realize the technical scheme of the embodiment of the present invention, the embodiment of the present invention also provides a kind of base station, and its structural representation as shown in Figure 7, specifically comprises:
Sending module 73, for when judgment result is that of judge module 71 is, for descending carrier sends the Downlink Control Information carry the descending distribution index that generation module 72 generates.
On the other hand, when judge module 71 is when the determination result is NO,
Sending module 73 is directly for descending carrier sends the Downlink Control Information that does not carry descending distribution index.
Concrete, generation module 72 generates descending distribution index, is specially:
When judge module 71 is when the determination result is NO, generation module 72 determines that the quantitative value of the ACK/NACK information that merge is 1, or the parity of the quantity of the ACK/NACK information merging is odd number, and generates corresponding descending distribution index.
On the other hand, the embodiment of the present invention also provides a kind of terminal equipment, and its structural representation as shown in Figure 8, specifically comprises:
Sending module 83, for when judgment result is that of judge module 82 is consistent, sends ACK information to base station, or when judgment result is that of judge module 82 is inconsistent, sends nack message to base station.
Wherein, it should be noted that:
The quantity information of the ACK/NACK information merging that descending distribution index is represented, is specially:
The quantitative value of the ACK/NACK information that the numeric representation of descending distribution index merges; Or,
The parity of the quantity of the ACK/NACK information that the numeric representation of descending distribution index merges;
Wherein, descending distribution index, can also represent that the corresponding ACK/NACK information of descending carrier does not merge, and is specially:
The quantitative value of the ACK/NACK information that the numeric representation of descending distribution index merges is 1; Or,
The parity of the quantity of the ACK/NACK information that the numeric representation of descending distribution index merges is odd number.
Further, when identification module 81 identification receives while not carrying descending distribution index in the Downlink Control Information that base station sends, determine whether the corresponding ACK/NACK information of downlink data information that the corresponding descending carrier of Downlink Control Information sends merges;
Sending module 83, also for when judgment result is that of judge module 82 receives, sends ACK information to base station, or when judgment result is that of judge module 82 do not receive, sends nack message to base station.
Compared with prior art, the embodiment of the present invention has the following advantages:
By the technical scheme of the application embodiment of the present invention, in LTE-A system, for the situation that may exist ACK/NACK information to merge, the quantity of the ACK/NACK information that base station can merge by descending distribution index notification terminal equipment, make terminal equipment can judge whether accordingly data-bag lost, thereby carry out corresponding ACK/NACK information feedback, improved the accuracy of ACK/NACK information feedback.
Through the above description of the embodiments, those skilled in the art can be well understood to the embodiment of the present invention and can realize by hardware, and the mode that also can add necessary general hardware platform by software realizes.Understanding based on such, the technical scheme of the embodiment of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, or the network equipment etc.) carry out the embodiment of the present invention each implement the method described in scene.
It will be appreciated by those skilled in the art that accompanying drawing is a schematic diagram of preferably implementing scene, the module in accompanying drawing or flow process might not be that the enforcement embodiment of the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device of implementing in scene can be distributed in the device of implementing scene according to implementing scene description, also can carry out respective change and be arranged in the one or more devices that are different from this enforcement scene.The module of above-mentioned enforcement scene can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number, just to describing, does not represent the quality of implementing scene.
Disclosed is above only the several concrete enforcement scene of the embodiment of the present invention, and still, the embodiment of the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into the traffic limits scope of the embodiment of the present invention.
Claims (15)
1. an indicating means for ACK/NACK information content in multicarrier system, is characterized in that, comprising:
Base station judges whether the corresponding ACK/NACK information of downlink data information that in current system, a descending carrier in a plurality of descending carriers sends merges;
If judgment result is that, be, descending distribution index is carried in described base station in the corresponding Downlink Control Information of described descending carrier, the quantity information of the downlink data information that the ACK/NACK that described descending distribution index is carried out for the downlink data information that represents to participate in described descending carrier and send merges.
2. the method for claim 1, is characterized in that, described base station also comprises after judging whether the corresponding ACK/NACK information of downlink data information that a descending carrier sends merges:
If the determination result is NO, descending distribution index is carried in described base station in the corresponding Downlink Control Information of described descending carrier, and described descending distribution index represents that the corresponding ACK/NACK information of downlink data information that described descending carrier sends does not merge; Or,
If the determination result is NO, descending distribution index is not carried in described base station in the corresponding Downlink Control Information of described descending carrier.
3. the method for claim 1, is characterized in that, the quantity information of the downlink data information that the ACK/NACK that described descending distribution index is carried out for the downlink data information that represents to participate in described descending carrier and send merges, is specially:
The quantitative value of the ACK/NACK information that the numeric representation of described descending distribution index merges; Or,
The parity of the quantity of the ACK/NACK information that the numeric representation of described descending distribution index merges.
4. method as claimed in claim 2, is characterized in that, described descending distribution index represents that the corresponding ACK/NACK information of downlink data information that described descending carrier sends does not merge, and is specially:
The quantitative value of the ACK/NACK information that the numeric representation of described descending distribution index merges is 1; Or,
The parity of the quantity of the ACK/NACK information that the numeric representation of described descending distribution index merges is odd number.
5. the method as described in any one in claims 1 to 3, is characterized in that, the size of described descending distribution index is specially 1 bit.
6. a base station, is characterized in that, comprising:
Judge module, whether the corresponding ACK/NACK information of downlink data information sending for the descending carrier judging in a plurality of descending carriers of current system merges;
Generation module, for when judgment result is that of described judge module is, generate descending distribution index, the quantity information of the downlink data information that the ACK/NACK that described descending distribution index is carried out for the downlink data information that represents to participate in described descending carrier and send merges;
Sending module, for when judgment result is that of described judge module is, for described descending carrier sends the Downlink Control Information that carries the descending distribution index that described generation module generates.
7. base station as claimed in claim 6, is characterized in that, when described judge module is when the determination result is NO,
The descending distribution index that the corresponding ACK/NACK information of downlink data information that the described descending carrier of described generation module generation expression sends does not merge, described sending module is that described descending carrier sends the Downlink Control Information that carries described descending distribution index; Or,
Described sending module is directly for described descending carrier sends the Downlink Control Information that does not carry descending distribution index.
8. the base station as described in claim 6 or 7, is characterized in that, described generation module generates descending distribution index, is specially:
Described generation module is according to the quantitative value of the ACK/NACK information merging, or the parity of the quantity of the ACK/NACK information merging, and generates described descending distribution index;
When described judge module is when the determination result is NO, described generation module determines that the quantitative value of the ACK/NACK information merging is 1, or the parity of the quantity of the ACK/NACK information merging is odd number, and generates corresponding descending distribution index.
9. an indicating means for ACK/NACK information content in multicarrier system, is characterized in that, comprising:
Terminal equipment identifies in the Downlink Control Information that receives base station transmission whether carry descending distribution index;
If carried, described terminal equipment judges that whether the quantity information of the ACK/NACK information merging that described descending distribution index is represented is consistent with the quantity information of current received downlink data information;
If consistent, and the described downlink data information of the correct reception of described terminal equipment, described terminal equipment sends ACK information to described base station, if inconsistent, described terminal equipment sends nack message to described base station.
10. method as claimed in claim 9, is characterized in that, the quantity information of the ACK/NACK information merging that described descending distribution index is represented, is specially:
The quantitative value of the ACK/NACK information that the numeric representation of described descending distribution index merges; Or,
The parity of the quantity of the ACK/NACK information that the numeric representation of described descending distribution index merges.
11. methods as claimed in claim 10, is characterized in that, described descending distribution index can also represent that the corresponding ACK/NACK information of downlink data information that descending carrier sends does not merge, and is specially:
The quantitative value of the ACK/NACK information that the numeric representation of described descending distribution index merges is 1; Or,
The parity of the quantity of the ACK/NACK information that the numeric representation of described descending distribution index merges is odd number.
12. methods as claimed in claim 9, is characterized in that, after terminal equipment identification receives and whether carries descending distribution index in the Downlink Control Information that base station sends, also comprise:
Described terminal equipment is identified in the Downlink Control Information that receives base station transmission and is not carried descending distribution index;
Described terminal equipment determines whether the corresponding ACK/NACK information of downlink data information that the corresponding descending carrier of described Downlink Control Information sends merges;
When the corresponding ACK/NACK information of downlink data information of the corresponding descending carrier transmission of described Downlink Control Information does not merge, described terminal equipment judges whether to receive the downlink data information that the corresponding descending carrier of described Downlink Control Information sends;
If received, and the described downlink data information of the correct reception of described terminal equipment, described terminal equipment sends ACK information to described base station, if do not received, described terminal equipment sends nack message to described base station.
13. 1 kinds of terminal equipments, is characterized in that, comprising:
Identification module, whether the Downlink Control Information that receives base station transmission for identifying carries descending distribution index;
Judge module, when carrying, judges that whether the quantity information of the ACK/NACK information merging that described descending distribution index is represented is consistent with the quantity information of current received downlink data information for the recognition result at described identification module;
Sending module, for when judgment result is that of described judge module is consistent, sends ACK information to described base station, or when judgment result is that of described judge module is inconsistent, to described base station, sends nack message.
14. terminal equipments as claimed in claim 13, is characterized in that,
The quantity information of the ACK/NACK information merging that described descending distribution index is represented, is specially:
The quantitative value of the ACK/NACK information that the numeric representation of described descending distribution index merges; Or,
The parity of the quantity of the ACK/NACK information that the numeric representation of described descending distribution index merges;
Wherein, described descending distribution index, can also represent that the corresponding ACK/NACK information of downlink data information that descending carrier sends does not merge, and is specially:
The quantitative value of the ACK/NACK information that the numeric representation of described descending distribution index merges is 1; Or,
The parity of the quantity of the ACK/NACK information that the numeric representation of described descending distribution index merges is odd number.
15. terminal equipments as claimed in claim 13, is characterized in that,
When the identification of described identification module receives while not carrying descending distribution index in the Downlink Control Information that base station sends, determine whether the corresponding ACK/NACK information of downlink data information that the corresponding descending carrier of described Downlink Control Information sends merges;
When the corresponding ACK/NACK information of downlink data information of the corresponding descending carrier transmission of described Downlink Control Information does not merge, described judge module, also for judging whether to receive the downlink data information that the corresponding descending carrier of described Downlink Control Information sends;
Described sending module, also for when judgment result is that of described judge module receives, and the described downlink data information of the correct reception of described terminal equipment, to described base station, send ACK information, or when judgment result is that of described judge module do not receive, to described base station, send nack message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010164476.0A CN102237980B (en) | 2010-04-30 | 2010-04-30 | Method and equipment for indicating amount of ACK (Acknowledgement)/NACK (Negative Acknowledgement) information in multicarrier system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010164476.0A CN102237980B (en) | 2010-04-30 | 2010-04-30 | Method and equipment for indicating amount of ACK (Acknowledgement)/NACK (Negative Acknowledgement) information in multicarrier system |
Publications (2)
| Publication Number | Publication Date |
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| CN102237980A CN102237980A (en) | 2011-11-09 |
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| CN101478371A (en) * | 2009-02-03 | 2009-07-08 | 中兴通讯股份有限公司 | Uplink semi-persistent scheduling released feedback information sending method |
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