CN101754252A - Multi-carrier updating system and method and device for feeding back ACK/NACK - Google Patents
Multi-carrier updating system and method and device for feeding back ACK/NACK Download PDFInfo
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- CN101754252A CN101754252A CN200810240429A CN200810240429A CN101754252A CN 101754252 A CN101754252 A CN 101754252A CN 200810240429 A CN200810240429 A CN 200810240429A CN 200810240429 A CN200810240429 A CN 200810240429A CN 101754252 A CN101754252 A CN 101754252A
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Abstract
The invention discloses a method and a device for feeding back ACK/NACK in a long-term evolution multi-carrier updating system, and the method comprises the following steps: feeding back a signal of ACK/NACK whether data on a downlink subframe needs to be re-sent or not to a base station on an uplink subframe after a user equipment completes modulation and decoding of the data on the downlink subframe, wherein the user equipment simultaneously transmits a plurality of feedback channels to the base station on the uplink subframe of an uplink carrier. The method is easy to implement and simultaneously applicable to a frequency-division duplex system and a time-division duplex system and can not only improve the system performance of the long-term evolution multi-carrier updating system, but also be well compatible with a long-term evolution Release 8 system.
Description
Technical field
The present invention relates to communication technical field, relate in particular to the method and apparatus of long-term evolution multi-carrier upgrade-system and feeding back ACK/NACK thereof.
Background technology
For Long Term Evolution (LTE:Long Term Evolution) multi-carrier updating system, for supporting the system bandwidth wideer than LTE system, such as 100MHz, a kind of may be the frequency spectrum that directly distributes the 100M bandwidth, as shown in Figure 1; A kind of may be to distribute to some spectrum aggregatings of existing system, gather into big bandwidth and supply with the upgrade-system use, the up-downgoing carrier wave can asymmetricly dispose in the system at this moment, be that the user may take N 〉=1 carrier wave and carries out downlink transfer, M 〉=1 carrier wave carries out uplink, and N ≠ M, as shown in Figure 2.When N＞M, same user need be transmitted the feedback information on a plurality of descending carriers in a up-link carrier.
Fig. 3, Fig. 4 is respectively FDD (Frequency Division Duplex, Frequency Division Duplexing (FDD)), TDD (TimeDivision Duplex, time division duplex) schematic diagram data of system, in the basic transmission plan of the LTE system (R8) that present standardization effort has been finished substantially, in FDD system and TDD system, for each work carrier wave, defined downlink signaling respectively, downlink data, up signaling and upstream data, and transmission relation each other, wherein, uplink need be satisfied single-carrier property, and the two ends of upstream control signaling band occupancy, use the frequency hopping mode to transmit, in two time slots in a subframe, upstream control signaling will take different band transmissions.
In descending transmission, opened HARQ (Hybrid Automatic Repeat reQuest, mix automatic repeat requests) during function, UE (User Equipment, subscriber equipment) after the demodulation of data on finishing, the decoding to descending sub frame n ', to whether need the signaling that retransmits in the data on this descending sub frame of base station feedback on sub-frame of uplink n=n '+k, i.e. ACK/NACK (confirm correct/confirm wrong), wherein ACK is with ' 1 ' expression, this moment, data correctly received, and did not retransmit; NACK is with ' 0 ' expression, this moment, the data decoding mistake needed to retransmit.For FDD system, k=4.For the TDD system, k ∈ K gathers the value of K and numbers relevant, as shown in table 1 with the uplink-downlink configuration of system and concrete subframe.
Table 1:Downlink association set index K:{k
0, k
1... k
M-1For TDD (the descending association of TDD is provided with index)
In the table 1, a plurality of radio frames sequence arrangement, even last subframe is k among the radio frames a, then first subframe is k+1 among the radio frames a+1, table 1 is the situation that example has provided the pairing K of each sub-frame of uplink with a radio frames, wherein the descending sub frame in the last radio frames of expression of n-k＜0.
When carrying out many code words (code word) transmission, system will be on same physical resource by the usage space multiplex technique, and multiplexing transmission belongs to same user's multiplex data stream.In the subframe, the data on the different data flow will independently be encoded, and become a code word.The ACK/NACK information of feedback will produce based on code word this moment, promptly to obtaining 1 independently ACK/NACK feedback behind each codeword decoding.
The LTE system, use BPSK (Binary Phase Shift Keying, binary phase shift keying) or QPSK (QuadraPhase Shift Keying, quaternary phase-shift keying) the ACK/NACK feedback information is modulated, and be limited to and carry a modulation symbol in each sub-frame of uplink at most, this symbol (uses cyclically shifted sequences to carry out spread spectrum earlier on frequency domain through twice spread spectrum, re-use orthogonal sequence and carrying out spread spectrum on the time domain) etc. become a single-carrier signal after the processing after, to transmit in the feedback channel of appointment, a plurality of users' ACK/NACK transmits on identical physical resource by the mode of sign indicating number branch is multiplexing in the sub-district.
For different systems and configuration (in the TDD system, the ACK/NACK of a plurality of descending sub frames need be in the configuration of same sub-frame of uplink feedback, as shown in table 1), in order to guarantee that the ACK/NACK on each descending sub frame can both be transmitted, and do not destroy the single-carrier property of uplink, then need to a plurality of ACK/NACK feedback informations merge (as, ACK/NACK on a plurality of descending sub frames is merged into an ACK/NACK, the ACK/NACK of a plurality of code words in the descending sub frame is merged into an ACK/NACK) or multiplexing process after, transmission again.In order to guarantee the comparatively reliable detection performance that has of feedback signaling, merge or multiplexing after feedback information can not surpass 2 bits, the promptly the highest QPSK that can only use modulates.
When the descending control signaling transmission is carried out in the base station, can distribute exclusive resource for each user, but feedback transmission for uplink ACK/NACK, the user does not know that other users use channel situation, for fear of the user resource contention takes place when feeding back, the UE that feeds back will be according to the resource number (n of its descending control signaling that receives
CCE), calculate it and carry out ACK/NACK and feed back employed resource (being channel) numbering (n
AN), i.e. n
ANBe one about n
CCEFunction n
AN=f (n
CCE)+N
AN, N wherein
ANBe high-rise configuration parameter, this function satisfies one-to-one relationship, promptly different n
CCECan obtain different n after the mapping
AN
In the research about the long-term evolution multi-carrier upgrade-system at present, upgrade-system will be supported the terminal of multiple ability rating, terminal for higher level, its uplink will no longer be subjected to the restriction of single carrier, but the deficiencies in the prior art are: also do not have scheme to be used to realize that the ACK/NACK under this kind situation feeds back at present.
Summary of the invention
The invention provides the method and apparatus of a kind of long-term evolution multi-carrier upgrade-system and feeding back ACK/NACK thereof, not fed back by the ACK/NACK of single carrier restriction in order in the long-term evolution multi-carrier upgrade-system, to realize uplink.
The inventive method comprises:
After the demodulation of subscriber equipment data on finishing, the decoding to descending sub frame, on the sub-frame of uplink on the base station feedback descending sub frame data whether need signaling ACK/NACK of retransmitting;
Wherein, subscriber equipment is on a sub-frame of uplink of a up-link carrier, simultaneously to a plurality of feedback channels of base station transmits.
Preferable, the ACK/NACK feedback information in the different descending carrier of described a plurality of feedback channels carryings, the different descending sub frame.
Preferable, each feedback channel in described a plurality of feedback channels:
Only carry on the descending carrier ACK/NACK feedback information in the descending sub frame;
Or, carry by the ACK/NACK feedback information in a plurality of descending carriers or the descending sub frame after merging or multiplexing process a compound feedback information that obtains.
Preferable, one of as follows or combination in any carry out described merging or multiplexing:
ACK/NACK feedback information in a plurality of descending sub frames on the same descending carrier is merged or multiplexing;
ACK/NACK feedback information on a plurality of descending carriers in the same descending sub frame is merged or multiplexing;
After ACK/NACK feedback information in a plurality of descending sub frames on the same descending carrier merged, the more compound ACK/NACK feedback information on a plurality of descending carriers is merged or multiplexing.
Preferable, carrying out described merging or when multiplexing, preferentially the ACK/NACK feedback information that belongs to same code word in the different subframes on the same descending carrier is merged or multiplexing; Next ACK/NACK feedback information to different code words on the same descending carrier merges or is multiplexing; At last the ACK/NACK feedback information on the different descending carriers is merged or multiplexing.
Preferable, during subscriber equipment feeding back ACK/NACK, further comprise:
Subscriber equipment is according to the resource number and the binding relationship of the descending control signaling that receives, calculates to carry out ACK/NACK and feed back employed channel number, carries out the ACK/NACK feedback by the channel number that calculates;
Wherein, described binding relationship is meant: carry out the binding relationship that ACK/NACK feeds back the descending control signaling resource number that the user receives on employed channel number and corresponding carrier wave and the subframe.
Preferable, described binding relationship is meant the mapping function that satisfies following condition:
Carrying out ACK/NACK feeds back the descending control signaling resource number that the user receives on employed channel number and corresponding carrier wave and the subframe and satisfies one-to-one relationship;
Carrying out the value space that ACK/NACK feeds back employed channel number is continuous positive integer collection.
Preferable, carry out ACK/NACK when feeding back employed channel number in calculating, for ACK/NACK feedback information through merging or multiplexing process, employing merge or multiplexing carrier wave and subframe in, the descending control signaling resource number on the subframe of the actual carrier wave that takies of user calculates its feedback channel numbering.
The embodiment of the invention also provides the subscriber equipment in a kind of long-term evolution multi-carrier upgrade-system, comprising:
The downlink processing module is used for data on the descending sub frame are carried out demodulation, decoding;
Retransmit feedback module, be used for the demodulation, decoding of data on described downlink processing module is finished descending sub frame after, on the sub-frame of uplink on the base station feedback descending sub frame data whether need signaling ACK/NACK of retransmitting; Wherein, on a sub-frame of uplink of a up-link carrier, simultaneously to a plurality of feedback channels of base station transmits.
Preferable, described re-transmission feedback module is further used for the ACK/NACK feedback information in the different descending carrier of described a plurality of feedback channels carryings, different descending sub frame.
Preferable, described re-transmission feedback module is further used for each feedback channel in described a plurality of feedback channels:
Only carry on the descending carrier ACK/NACK feedback information in the descending sub frame;
Or, carry by the ACK/NACK feedback information in a plurality of descending carriers or the descending sub frame after merging or multiplexing process a compound feedback information that obtains.
Preferable, described re-transmission feedback module one of is further used for as follows or combination in any is carried out described merging or multiplexing:
ACK/NACK feedback information in a plurality of descending sub frames on the same descending carrier is merged or multiplexing;
ACK/NACK feedback information on a plurality of descending carriers in the same descending sub frame is merged or multiplexing;
After ACK/NACK feedback information in a plurality of descending sub frames on the same descending carrier merged, the more compound ACK/NACK feedback information on a plurality of descending carriers is merged or multiplexing.
Preferable, described re-transmission feedback module is further used for carrying out described merging or when multiplexing, preferentially the ACK/NACK feedback information that belongs to same code word in the different subframes on the same descending carrier is merged or multiplexing; Next ACK/NACK feedback information to different code words on the same descending carrier merges or is multiplexing; At last the ACK/NACK feedback information on the different descending carriers is merged or multiplexing.
Preferable, described re-transmission feedback module further comprises:
Computing unit is used for resource number and binding relationship according to the descending control signaling that receives, calculates to carry out ACK/NACK and feed back employed channel number; Wherein, described binding relationship is meant: carry out the binding relationship that ACK/NACK feeds back the descending control signaling resource number that the user receives on employed channel number and corresponding carrier wave and the subframe;
Feedback unit is used for carrying out the ACK/NACK feedback by the channel number that calculates.
The embodiment of the invention also provides the base station in a kind of long-term evolution multi-carrier upgrade-system, comprising:
Sending module is used to send the data on the descending sub frame;
Receiver module is used on the descending sub frame that receives the subscriber equipment feedback on sub-frame of uplink data and whether needs signaling ACK/NACK of retransmitting; Wherein, on a sub-frame of uplink of a up-link carrier, receive the ACK/NACK feedback information on a plurality of feedback channels simultaneously.
Preferable, described receiver module is further used for receiving ACK/NACK feedback information in different descending carriers, the different descending sub frame at described a plurality of feedback channels.
Preferable, described receiver module is further used for each feedback channel in described a plurality of feedback channels:
Only receive on the descending carrier ACK/NACK feedback information in the descending sub frame;
Or, receive by the ACK/NACK feedback information in a plurality of descending carriers or the descending sub frame after merging or multiplexing process a compound feedback information that obtains.
The embodiment of the invention also provides a kind of long-term evolution multi-carrier upgrade-system, comprising:
Subscriber equipment, be used for the demodulation, decoding of data on finishing to descending sub frame after, whether data need signaling ACK/NACK of retransmitting on feeding back downlink subframe on the sub-frame of uplink; Wherein, subscriber equipment transmits a plurality of feedback channels simultaneously on a sub-frame of uplink of a up-link carrier;
The base station is used for sending data on the descending sub frame to subscriber equipment; And, receive the ACK/NACK that subscriber equipment feeds back.
Beneficial effect of the present invention is as follows:
In the embodiment of the invention, after the demodulation of subscriber equipment data on finishing, the decoding to descending sub frame, on the sub-frame of uplink on the base station feedback descending sub frame data whether need signaling ACK/NACK of retransmitting; Wherein, subscriber equipment is on a sub-frame of uplink of a up-link carrier, simultaneously to a plurality of feedback channels of base station transmits; Thereby realized in the long-term evolution multi-carrier upgrade-system, ACK/NACK when uplink is not subjected to the single carrier restriction feeds back, this scheme is simple, easy to implement, be applicable to FDD and TDD system simultaneously, not only can improve the systematic function of long-term evolution multi-carrier upgrade-system, and can well with LTERelease 8 system compatibles.
Description of drawings
Fig. 1 is a single-frequency spectral system schematic in the background technology;
Fig. 2 is a background technology intermediate frequency spectrum paradigmatic system up-downgoing carrier wave schematic diagram;
Fig. 3 is the schematic diagram data of FDD system in the background technology;
Fig. 4 is the schematic diagram data of TDD system in the background technology;
Fig. 5 is the frequency hopping distribution schematic diagram of feedback channel in the embodiment of the invention;
Fig. 6 is the structural representation of the subscriber equipment in the medium-term and long-term evolution multi-carrier updating system of the embodiment of the invention;
Fig. 7 is the structural representation that retransmits feedback module in the embodiment of the invention;
Fig. 8 is the structural representation of the base station in the medium-term and long-term evolution multi-carrier updating system of the embodiment of the invention;
Fig. 9 is the structural representation of the medium-term and long-term evolution multi-carrier updating system of the embodiment of the invention.
Embodiment
When the embodiment of the invention realizes feeding back ACK/NACK in the long-term evolution multi-carrier upgrade-system, after the demodulation of subscriber equipment data on finishing, the decoding to descending sub frame, on the sub-frame of uplink on the base station feedback descending sub frame data whether need signaling ACK/NACK of retransmitting; Wherein, subscriber equipment is on a sub-frame of uplink of a up-link carrier, simultaneously to a plurality of feedback channels of base station transmits.
Among the embodiment, subscriber equipment simultaneously can carry ACK/NACK feedback information in different descending carriers, the different descending sub frame to a plurality of feedback channels of base station transmits on a sub-frame of uplink of a up-link carrier.That is, a plurality of ACK/NACK feedback channels, carrier wave that can be corresponding different, different subframes.Concrete, each feedback channel in aforementioned a plurality of feedback channels, loading ACK/NACK feedback information in many ways, for example each feedback channel only carries on the descending carrier ACK/NACK feedback information in the descending sub frame; Also can carry by the ACK/NACK feedback information in a plurality of descending carriers or the descending sub frame after merging or multiplexing process a compound feedback information that obtains.
When carrying out above-mentioned merging or multiplexing process, also can be undertaken by multiple mode, for example one of as follows or combination in any carry out described merging or multiplexing:
ACK/NACK feedback information in a plurality of descending sub frames on the same descending carrier is merged or multiplexing;
ACK/NACK feedback information on a plurality of descending carriers in the same descending sub frame is merged or multiplexing;
After ACK/NACK feedback information in a plurality of descending sub frames on the same descending carrier merged, the more compound ACK/NACK feedback information on a plurality of descending carriers is merged or multiplexing.
Above-mentioned merging or multiplexing can be when concrete the processing by standard in existing regulation carry out, also can be according to the actual conditions otherwise designed.
As the case may be, may carry out multiple merging or multiplexing in the system, can set the priority of merging or multiplexing concrete mode this moment, for example when carrying out many code words (code word) transmission, system is by the usage space multiplex technique, will be on same physical resource, multiplexing transmission belongs to same user's multiplex data stream.In the subframe, the data on the different data flow will independently be encoded, and become a code word.The ACK/NACK information of feedback will produce based on code word this moment, and promptly to obtaining 1 independently ACK/NACK feedback behind each codeword decoding, can carry out the ACK/NACK feedback this moment by following priority:
Preferentially the ACK/NACK feedback information that belongs to same code word in the different subframes on the same descending carrier is merged or multiplexing;
Next ACK/NACK feedback information to different code words on the same descending carrier merges or is multiplexing;
At last the ACK/NACK feedback information on the different descending carriers is merged or multiplexing.
In each feedback channel, the existing method in can the use standard is handled feedback information during enforcement.
When the descending control signaling transmission is carried out in the base station, can distribute exclusive resource for each user, but feedback transmission for uplink ACK/NACK, the user does not know that other users use channel situation, resource contention takes place when feeding back for fear of the user, the UE that feeds back will be according to the resource number and the binding relationship of its descending control signaling that receives, and calculates to carry out ACK/NACK and feed back employed channel number, carries out the ACK/NACK feedback by the channel number that calculates; Wherein, described binding relationship is meant: carry out the binding relationship that ACK/NACK feeds back the descending control signaling resource number that the user receives on employed channel number and corresponding carrier wave and the subframe.
Aforementioned binding relationship can be a mapping function, and the existing mapping function in can the use standard in the enforcement also can use other mapping functions, no matter is which kind of mapping function, all need satisfy following condition:
Carrying out ACK/NACK feeds back the descending control signaling resource number that the user receives on employed channel number and corresponding carrier wave and the subframe and satisfies one-to-one relationship;
Carrying out the value space that ACK/NACK feeds back employed channel number is continuous positive integer collection.
If with n
CCEThe resource number of the descending control signaling that the expression subscriber equipment receives is with n
ANThe expression subscriber equipment carries out ACK/NACK and feeds back employed resource (being channel) numbering, and then aforementioned one-to-one relationship is meant:
Different n
CCECorresponding different n
AN
Has identical n on different carrier, the subframe
CCEThe user of numbering, the n that it is corresponding
ANAlso different;
For example, by the existing mapping function in the standard, n
ANBe one about n
CCEFunction n
AN=f (n
CCE)+N
AN, N wherein
ANBe high-rise configuration parameter, this function satisfies one-to-one relationship, promptly different n
CCECan obtain different n after the mapping
AN
n
ANThe value space be continuous positive integer collection, comprising:
Feedback channel numbering value space on each carrier wave is continuous positive integer collection;
Feedback channel numbering value space in each subframe is continuous positive integer collection.
Carry out ACK/NACK when feeding back employed channel number in calculating in the enforcement, for ACK/NACK feedback information through merging or multiplexing process, can adopt merge or multiplexing carrier wave and subframe in, the descending control signaling resource number on the subframe of the actual carrier wave that takies of user calculates its feedback channel numbering.
Provide an instantiation below so that ACK/NACK feedback method of the present invention to be described.
This example assumes will be carried N the ACK/NACK feedback on the descending carrier in the up-link carrier in the TDD system, and descending sub frame n-k
iOn ACK/NACK all in sub-frame of uplink n, feed back, wherein, i=0,1 ..., M-1, k ∈ K, K are the listed set of table 1.
Among the sub-frame of uplink n, can carry:
M * N uplink feedback channel, descending sub frame on the corresponding descending carrier of each feedback channel.
If in conjunction with merging or multiplexing process, then only need the individual uplink feedback channel of feedback M ' * N ', M '≤M wherein, N≤N '.
In each feedback channel, existing method is handled feedback information in the use standard.
Feed back that the employed descending control signaling resource number of user has binding relationship on employed channel number and corresponding carrier wave and the subframe.
Fig. 5 has provided the frequency hopping distribution schematic diagram of several feedback channels, wherein:
Feedback channel continuous distribution on the same descending carrier;
Feedback channel continuous distribution on the same descending sub frame.
Through the feedback information of merging or multiplexing process, use in the carrier wave and subframe that merges, the descending control signaling resource number on first subframe on actual first carrier wave that takies of user calculates its feedback channel numbering.
Based on same inventive concept, the embodiment of the invention also provides the subscriber equipment in a kind of long-term evolution multi-carrier upgrade-system, and its structure can comprise as shown in Figure 6:
Downlink processing module 601 is used for data on the descending sub frame are carried out demodulation, decoding;
Retransmit feedback module 602, be used for the demodulation, decoding of data on described downlink processing module is finished descending sub frame after, on the sub-frame of uplink on the base station feedback descending sub frame data whether need signaling ACK/NACK of retransmitting; Wherein, on a sub-frame of uplink of a up-link carrier, simultaneously to a plurality of feedback channels of base station transmits.
In the enforcement, retransmit feedback module 602 and can also be used for ACK/NACK feedback information at the different descending carrier of described a plurality of feedback channels carryings, different descending sub frame.
In the enforcement, re-transmission feedback module 602 can also be used for each feedback channel at described a plurality of feedback channels:
Only carry on the descending carrier ACK/NACK feedback information in the descending sub frame;
Or, carry by the ACK/NACK feedback information in a plurality of descending carriers or the descending sub frame after merging or multiplexing process a compound feedback information that obtains.
In the enforcement, retransmit that feedback module 602 one of can also be used for as follows or combination in any is carried out described merging or multiplexing:
ACK/NACK feedback information in a plurality of descending sub frames on the same descending carrier is merged or multiplexing;
ACK/NACK feedback information on a plurality of descending carriers in the same descending sub frame is merged or multiplexing;
After ACK/NACK feedback information in a plurality of descending sub frames on the same descending carrier merged, the more compound ACK/NACK feedback information on a plurality of descending carriers is merged or multiplexing.
In the enforcement, retransmit feedback module 602 and can also be used for carrying out described merging or when multiplexing, preferentially the ACK/NACK feedback information that belongs to same code word in the different subframes on the same descending carrier is merged or multiplexing; Next ACK/NACK feedback information to different code words on the same descending carrier merges or is multiplexing; At last the ACK/NACK feedback information on the different descending carriers is merged or multiplexing.
As shown in Figure 7, among the embodiment, retransmitting feedback module 602 can also comprise:
Based on same inventive concept, the embodiment of the invention also provides the base station in a kind of long-term evolution multi-carrier upgrade-system, as shown in Figure 8, comprising:
Sending module 801 is used to send the data on the descending sub frame;
Receiver module 802 is used on the descending sub frame that receives the subscriber equipment feedback on sub-frame of uplink data and whether needs signaling ACK/NACK of retransmitting; Wherein, on a sub-frame of uplink of a up-link carrier, receive a plurality of feedback channels simultaneously.
In the enforcement, receiver module 802 can also be used for receiving at described a plurality of feedback channels the ACK/NACK feedback information of different descending carriers, different descending sub frame.
In the enforcement, receiver module 802 can also be used for each feedback channel at described a plurality of feedback channels:
Only receive on the descending carrier ACK/NACK feedback information in the descending sub frame;
Or, receive by the ACK/NACK feedback information in a plurality of descending carriers or the descending sub frame after merging or multiplexing process a compound feedback information that obtains.
Based on same inventive concept, the embodiment of the invention also provides a kind of long-term evolution multi-carrier upgrade-system, as shown in Figure 9, can comprise:
In the embodiment of the invention, after the demodulation of subscriber equipment data on finishing, the decoding to descending sub frame, on the sub-frame of uplink on the base station feedback descending sub frame data whether need signaling ACK/NACK of retransmitting; Wherein, subscriber equipment is on a sub-frame of uplink of a up-link carrier, simultaneously to a plurality of feedback channels of base station transmits; Thereby realized in the long-term evolution multi-carrier upgrade-system, ACK/NACK when uplink is not subjected to the single carrier restriction feeds back, this method is simple, easy to implement, be applicable to FDD and TDD system simultaneously, not only can improve the systematic function of long-term evolution multi-carrier upgrade-system, and can well with LTERelease 8 system compatibles.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software implementation example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form that goes up the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of carrying out on computer or other programmable devices is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
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 (18)
1. the method for feeding back ACK/NACK in the long-term evolution multi-carrier upgrade-system is characterized in that, comprises the steps:
After the demodulation of subscriber equipment data on finishing, the decoding to descending sub frame, on the sub-frame of uplink on the base station feedback descending sub frame data whether need signaling ACK/NACK of retransmitting;
Wherein, subscriber equipment is on a sub-frame of uplink of a up-link carrier, simultaneously to a plurality of feedback channels of base station transmits.
2. the method for claim 1 is characterized in that, the ACK/NACK feedback information in the different descending carrier of described a plurality of feedback channels carrying, the different descending sub frame.
3. method as claimed in claim 2 is characterized in that, each feedback channel in described a plurality of feedback channels:
Only carry on the descending carrier ACK/NACK feedback information in the descending sub frame;
Or, carry by the ACK/NACK feedback information in a plurality of descending carriers or the descending sub frame after merging or multiplexing process a compound feedback information that obtains.
4. method as claimed in claim 3 is characterized in that, one of as follows or combination in any carry out described merging or multiplexing:
ACK/NACK feedback information in a plurality of descending sub frames on the same descending carrier is merged or multiplexing;
ACK/NACK feedback information on a plurality of descending carriers in the same descending sub frame is merged or multiplexing;
After ACK/NACK feedback information in a plurality of descending sub frames on the same descending carrier merged, the more compound ACK/NACK feedback information on a plurality of descending carriers is merged or multiplexing.
5. method as claimed in claim 3 is characterized in that, is carrying out described merging or when multiplexing, preferentially the ACK/NACK feedback information that belongs to same code word in the different subframes on the same descending carrier is merged or multiplexing; Next ACK/NACK feedback information to different code words on the same descending carrier merges or is multiplexing; At last the ACK/NACK feedback information on the different descending carriers is merged or multiplexing.
6. the method for claim 1 is characterized in that, during subscriber equipment feeding back ACK/NACK, further comprises:
Subscriber equipment is according to the resource number and the binding relationship of the descending control signaling that receives, calculates to carry out ACK/NACK and feed back employed channel number, carries out the ACK/NACK feedback by the channel number that calculates;
Wherein, described binding relationship is meant: carry out the binding relationship that ACK/NACK feeds back the descending control signaling resource number that the user receives on employed channel number and corresponding carrier wave and the subframe.
7. method as claimed in claim 6 is characterized in that, described binding relationship is meant the mapping function that satisfies following condition:
Carrying out ACK/NACK feeds back the descending control signaling resource number that the user receives on employed channel number and corresponding carrier wave and the subframe and satisfies one-to-one relationship;
Carrying out the value space that ACK/NACK feeds back employed channel number is continuous positive integer collection.
8. method as claimed in claim 6, it is characterized in that, carry out ACK/NACK when feeding back employed channel number in calculating, for ACK/NACK feedback information through merging or multiplexing process, employing merge or multiplexing carrier wave and subframe in, the descending control signaling resource number on the subframe of the actual carrier wave that takies of user calculates its feedback channel numbering.
9. the subscriber equipment in the long-term evolution multi-carrier upgrade-system is characterized in that, comprising:
The downlink processing module is used for data on the descending sub frame are carried out demodulation, decoding;
Retransmit feedback module, be used for the demodulation, decoding of data on described downlink processing module is finished descending sub frame after, on the sub-frame of uplink on the base station feedback descending sub frame data whether need signaling ACK/NACK of retransmitting; Wherein, on a sub-frame of uplink of a up-link carrier, simultaneously to a plurality of feedback channels of base station transmits.
10. subscriber equipment as claimed in claim 9 is characterized in that, described re-transmission feedback module is further used for the ACK/NACK feedback information in the different descending carrier of described a plurality of feedback channels carrying, different descending sub frame.
11. subscriber equipment as claimed in claim 10 is characterized in that, described re-transmission feedback module is further used for each feedback channel in described a plurality of feedback channels:
Only carry on the descending carrier ACK/NACK feedback information in the descending sub frame;
Or, carry by the ACK/NACK feedback information in a plurality of descending carriers or the descending sub frame after merging or multiplexing process a compound feedback information that obtains.
12. subscriber equipment as claimed in claim 11 is characterized in that, described re-transmission feedback module one of is further used for as follows or combination in any is carried out described merging or multiplexing:
ACK/NACK feedback information in a plurality of descending sub frames on the same descending carrier is merged or multiplexing;
ACK/NACK feedback information on a plurality of descending carriers in the same descending sub frame is merged or multiplexing;
After ACK/NACK feedback information in a plurality of descending sub frames on the same descending carrier merged, the more compound ACK/NACK feedback information on a plurality of descending carriers is merged or multiplexing.
13. subscriber equipment as claimed in claim 11, it is characterized in that, described re-transmission feedback module is further used for carrying out described merging or when multiplexing, preferentially the ACK/NACK feedback information that belongs to same code word in the different subframes on the same descending carrier is merged or multiplexing; Next ACK/NACK feedback information to different code words on the same descending carrier merges or is multiplexing; At last the ACK/NACK feedback information on the different descending carriers is merged or multiplexing.
14. subscriber equipment as claimed in claim 9 is characterized in that, described re-transmission feedback module further comprises:
Computing unit is used for resource number and binding relationship according to the descending control signaling that receives, calculates to carry out ACK/NACK and feed back employed channel number; Wherein, described binding relationship is meant: carry out the binding relationship that ACK/NACK feeds back the descending control signaling resource number that the user receives on employed channel number and corresponding carrier wave and the subframe;
Feedback unit is used for carrying out the ACK/NACK feedback by the channel number that calculates.
15. the base station in the long-term evolution multi-carrier upgrade-system is characterized in that, comprising:
Sending module is used to send the data on the descending sub frame;
Receiver module is used on the descending sub frame that receives the subscriber equipment feedback on sub-frame of uplink data and whether needs signaling ACK/NACK of retransmitting; Wherein, on a sub-frame of uplink of a up-link carrier, receive a plurality of feedback channels simultaneously.
16. base station as claimed in claim 15 is characterized in that, described receiver module is further used for receiving ACK/NACK feedback information in different descending carriers, the different descending sub frame at described a plurality of feedback channels.
17. base station as claimed in claim 16 is characterized in that, described receiver module is further used for each feedback channel in described a plurality of feedback channels:
Only receive on the descending carrier ACK/NACK feedback information in the descending sub frame;
Or, receive by the ACK/NACK feedback information in a plurality of descending carriers or the descending sub frame after merging or multiplexing process a compound feedback information that obtains.
18. a long-term evolution multi-carrier upgrade-system is characterized in that, comprising:
Subscriber equipment, be used for the demodulation, decoding of data on finishing to descending sub frame after, whether data need signaling ACK/NACK of retransmitting on feeding back downlink subframe on the sub-frame of uplink; Wherein, subscriber equipment transmits a plurality of feedback channels simultaneously on a sub-frame of uplink of a up-link carrier;
The base station is used for sending data on the descending sub frame to subscriber equipment; And, receive the ACK/NACK that subscriber equipment feeds back.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN200810240429A CN101754252A (en) | 2008-12-19 | 2008-12-19 | Multi-carrier updating system and method and device for feeding back ACK/NACK |
| PCT/CN2009/001511 WO2010069154A1 (en) | 2008-12-19 | 2009-12-18 | Method and device for transmitting feedback information |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810240429A CN101754252A (en) | 2008-12-19 | 2008-12-19 | Multi-carrier updating system and method and device for feeding back ACK/NACK |
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| CN101754252A true CN101754252A (en) | 2010-06-23 |
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| CN200810240429A Pending CN101754252A (en) | 2008-12-19 | 2008-12-19 | Multi-carrier updating system and method and device for feeding back ACK/NACK |
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