CN102077669B - Method and apparatus for allocating the multi-carrier ACK channel - Google Patents

Method and apparatus for allocating the multi-carrier ACK channel Download PDF

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CN102077669B
CN102077669B CN200980124920.1A CN200980124920A CN102077669B CN 102077669 B CN102077669 B CN 102077669B CN 200980124920 A CN200980124920 A CN 200980124920A CN 102077669 B CN102077669 B CN 102077669B
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ack channel
sequence number
uplink ack
label
cce
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CN102077669A (en
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陈小波
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

Abstract

A method and apparatus for allocating the multi-carrier ACK channel are provided in the present invention. The said method comprises: assigning sequence numbers by a base station to at least one DL CC and/or downlink subframe; dividing the uplink ACK channel corresponding to the downlink subframe of the DL CC into subblocks, and assigning subblock labels, and allocating the uplink ACK channel to at least one DL CC first in the ascending order of the said sequence numbers and then in the ascending order of the said labels. The present invention can better support dynamic scheduling PUSCH transmission on the idle resource block, and meanwhile can effectively reduce the signaling from the base station.

Description

The method and apparatus that a kind of multicarrier ack channel distributes
Technical field
The embodiment of the invention relates to the communication technology, particularly relates to the method and apparatus that a kind of multicarrier ack channel distributes.
Background of invention
By LTE (Long Term Evolution, Long Term Evolution) LTE-A of enhancing system (the Long Term Evolution-Advanced of the further evolution of system, senior Long Term Evolution) in, the selected use of carrier aggregation (Carrier Aggregation) technology, to support wideer bandwidth, satisfy International Telecommunications Union for the 4th generation the communication technology the peak data rate requirement.A LTE system only uses one or a pair of member carrier (Component Carrier), among the LTE-A of carrier aggregation, can use a plurality of member carriers simultaneously, to obtain wideer transmission bandwidth.It is compatible that each member carrier in the LTE-A system may be configured to the LTE system, and the frequency spectrum of each member carrier can be adjacent continuous frequency spectrum, also can be non-conterminous frequency spectrum in the identical frequency band or even the discontinuous spectrum in the different frequency bands.In the LTE-A system, LTE UE (LTE User Equipment, the LTE subscriber equipment) can only insert one of them or a pair of member carrier carries out data transmit-receive, carry out data transmit-receive and LTE-AUE can insert a plurality of member carriers simultaneously according to its ability and business demand.Carrier aggregation technology also is spectrum aggregating (Spectrum Aggregation) technology sometimes, perhaps bandwidth expansion (BandwidthExtension) technology.
In the LTE-A system, each member carrier has independently HARQ (Hybrid AutomaticRepeat Request, physical layer is mixed automatic repeat requests) process, and for LTE-A UE can dispose different UL CC (UpLink Component Carrier, uplink member carrier) and DL CC (DownLink Component Carrier, downlink member carrier) number.When LTE-A UE inserts at least one DL CC and at least one UL CC transmitting-receiving data simultaneously, at least one PDCCH that issues at least one DL CC at a UL CC (Physical Downlink ControlCHannel, physical layer descending control channel) distributes uplink ACK channel (up responder link) respectively possibly.
In the prior art, the LTE-A base station is to shine upon initial biasing for each DL CC arranges different uplink ACK channels respectively for the method for at least one DL CC assigning ACK, caused the discontinuous of uplink ACK channel allocation, so each DL CC is discontinuous by the Resource Block of idle uplink ACK channel correspondence, be difficult to these discontinuous Resource Block are used.And prior art to need the base station be signaling under each initial biasing, increased the quantity of the following signaling of base station.
Summary of the invention
Method, equipment and system that the embodiment of the invention provides a kind of multicarrier ack channel to distribute.In order to distribute the uplink ACK channel of different DL CC actual association subframe correspondences.
The method that the embodiment of the invention provides a kind of multicarrier ack channel to distribute comprises:
Be at least one DL CC and/or descending sub frame Allotment Serial Number;
Be the sub-piece of uplink ACK channel distribution of the descending sub frame correspondence of DL CC, and divide gamete piece label;
According to increasing progressively above-mentioned sequence number earlier, the order that increases progressively above-mentioned sub-piece label again to distribute the uplink ACK channel at least one DLCC.
The embodiment of the invention provides a kind of base station, comprising:
The first sequence number distribution module is used at least one DL CC and/or descending sub frame Allotment Serial Number;
The first label distribution module is used to the sub-piece of uplink ACK channel distribution of each descending sub frame correspondence, and divides gamete piece label;
First channel assignment module is used for according to increasing progressively above-mentioned sequence number earlier, and the order that increases progressively above-mentioned sub-piece label again to distribute the uplink ACK channel at least one DL CC.
The embodiment of the invention provides a kind of UE, comprising:
The second channel distribution module is used for according to increasing progressively sequence number earlier, and the order that increases progressively sub-piece label again to distribute the uplink ACK channel at least one DL CC.
The system that the embodiment of the invention provides a kind of multicarrier ack channel to distribute comprises:
Above-mentioned base station is used to the sub-piece of uplink ACK channel distribution of each descending sub frame correspondence, and divides gamete piece label; Be used for according to increasing progressively above-mentioned sequence number earlier, the order that increases progressively above-mentioned sub-piece label again to distribute the uplink ACK channel at least one DL CC; Be used for according to increasing progressively above-mentioned sequence number earlier, the order that increases progressively above-mentioned label again to distribute the uplink ACK channel at least one DL CC.
Method, equipment and the system that a kind of multicarrier ack channel that the embodiment of the invention provides distributes when distributing the uplink ACK channel of different DL CC actual association subframe correspondences, can increase progressively earlier sequence number increase progressively again sub-piece label will with in pairs DL CC corresponding by less actual association number of sub frames and less n CFIThe idle uplink ACK block of channels that value causes is organized into continuous distribution, thereby can be supported in dynamic dispatching physical layer Uplink Shared Channel on the Resource Block corresponding with these idle uplink ACK block of channels better.
Brief Description Of Drawings
Fig. 1 is ack channel allocation result schematic diagram in prior art LTE-A TDD (LTE-A Time Division Duplex, the LTE-A time division duplex) system;
Fig. 2 distributes the embodiment schematic diagram of uplink ACK channel for the present invention;
The uplink ACK channel distribution schematic diagram that Fig. 3 distributes for PDCCH;
The uplink ACK channel distribution schematic diagram that Fig. 4 distributes for PDCCH;
Fig. 5 is embodiment of the invention ack channel allocation result schematic diagram;
Fig. 6 is the embodiment schematic diagram that at least one DL CC reserves the uplink ACK channel for the present invention;
Fig. 7 is the structural representation of embodiment of the invention base station;
Fig. 8 is the structural representation of embodiment of the invention UE.
Implement mode of the present invention
The embodiment of the invention provides ack channel distribution method and the equipment under a kind of carrier aggregation, and the technical scheme to the embodiment of the invention is described in further detail below.
The inventor is in the process that realizes the embodiment of the invention, find in the prior art of LTE-A that the base station is to shine upon initial biasing for each DL CC different ack channels being set respectively at least one DL CC distributes the method for uplink ACK channel, and to need the base station be signaling under each initial biasing.In this distribution method not in pairs DL CC correspondence by less actual association number of sub frames and less n CFIThe idle uplink ACK block of channels that value causes is discontinuously arranged, is dispatched on the transfer of data so be difficult to the resource dynamic that these are idle; And owing to will issue initial biasing respectively to each DL CC, increased the quantity of the following signaling of base station.
For example establish initial being biased to of uplink ACK channel mapping that i DL CC arranges
Figure GPA00001287355500041
Then
Figure GPA00001287355500042
Be expressed as CCE (Control Channel Element, control channel unit) the label n of i DL CC CCETo uplink ACK channel label
Figure GPA00001287355500043
The uplink ACK channel number that mapping is reserved.N in the similar LTE of the employing system in each member carrier CCEArrive
Figure GPA00001287355500044
The mode of mapping.
N among the LTE TDD CCEArrive
Figure GPA00001287355500045
Mapping mode be: according to ratio of uplink subframe to downlink subframe and HARQ timing relationship, for each sub-frame of uplink has defined descending related subframe collection index K:{k 0, k 1..., k M-1, as shown in table 1 below, the problem that the PDCCH that issues at least one descending sub frame at a sub-frame of uplink with solution distributes the uplink ACK channel respectively.At descending related subframe collection index K:{k 0, k 1..., k M-1In, to be illustrated in this sub-frame of uplink be that the PDCCH that M descending sub frame issues distributes the uplink ACK channel respectively to the number M of element in the set; The order of element, be k mSubscript m (0≤m≤M-1) represents the subframe mapping order of M descending sub frame when distributing the uplink ACK channel; The value k of element mThe descending sub frame that expression is corresponding or special subframe are to begin to count corresponding that subframe after the respective number subframe forward from this sub-frame of uplink, thereby have provided the descending sub frame set at this sub-frame of uplink feeding back ACK/NACK (ACKnowledgement/Negative-ACKnowledgement confirms to reply/deny to reply).Be example with ratio of uplink subframe to downlink subframe 3 and subframe 2, at the ACK/NACK of M=3 subframe of this sub-frame of uplink internal feedback, to have indicated these 3 subframes respectively be respectively the 5th, 6 and 1 subframe of previous radio frames to the numerical value " 7,6,11 " of element among the set K.
Figure GPA00001287355500051
Descending related subframe collection index K:{k under each ratio of uplink subframe to downlink subframe of table 1 LTE TDD 0, k 1..., k M-1}
For with descending related subframe collection index K in element k mCertain PDCCH that dispatches in corresponding descending sub frame or the special subframe supposes that its initial CCE label that takies is n CCE, the uplink ACK channel label of establishing corresponding distribution is
Figure GPA00001287355500052
Then earlier { select a p value to make N among 0,1,2, the 3} from set p ∈ p≤ n CCE＜N P+1, again with the p value substitution that obtains
n PUCCH ( 1 ) = ( M - m - 1 ) × N p + m × N p + 1 + n CCE + N PUCCH ( 1 )
In calculate the uplink ACK channel label of distribution, wherein
Figure GPA00001287355500054
Expression according to the initial biasing in all PUCCH (Physical Uplink Control CHannel, physical layer ascending control channel) form 1/1a/1b channel of the uplink ACK channel of CCE label mapping,
Figure GPA00001287355500055
Figure GPA00001287355500056
Be the downlink system bandwidth represented with resource block number,
Figure GPA00001287355500057
Be the continuous number of sub carrier wave that takies at frequency domain of a Resource Block,
Figure GPA00001287355500058
Represent downward rounding operation.
As can be seen from Table 1, LTE TDD system adopts ratio of uplink subframe to downlink subframe 1 and at 3 o'clock, element number difference among the descending related subframe collection index K in different sub-frame of uplink, and shine upon initial biasing in that the uplink ACK channel is set this moment
Figure GPA00001287355500059
The time, arrange according to the greatest member number among the related subframe collection of this proportioning up-downgoing index K.For example when ratio of uplink subframe to downlink subframe 3, the greatest member number among the descending related subframe collection index K is 3, namely will reserve the uplink ACK channel resource according to the CCE number of 3 descending sub frames.Element number more after a little while in the descending related subframe collection index K of a sub-frame of uplink, for example in the subframe 3 and subframe 4 in the ratio of uplink subframe to downlink subframe 3, the uplink ACK channel resource of reserving can exceed actual demand, and the Resource Block of these idle uplink ACK channel correspondences can dynamically be scheduled for the PUSCH transmission in the LTETDD system.
Yet n in the LTE system CCEArrive
Figure GPA00001287355500061
After the mode of mapping was used in the LTE-A TDD system, these idle uplink ACK channels were just discontinuous, and the very difficult while dynamically is scheduled for the PUSCH transmission.In LTE-A TDD system when the initial biasing of different uplink ACK channel mapping is set respectively for each the DL CC at least one DL CC of identical UL CC mapping uplink ACK channel, also will according to the corresponding descending related subframe collection index K of each DL CC in the greatest member number arrange.Fig. 1 has provided an example, and wherein all member carriers all adopt ratio of uplink subframe to downlink subframe 3, and distributes corresponding uplink ACK channel at identical UL CC for the PDCCH that issues at 3 DL CC; In the descending related subframe collection index 3 subframes are arranged at most during ratio of uplink subframe to downlink subframe 3 as can be seen from Table 1, so arrange according to 3 subframes when the initial biasing of uplink ACK channel mapping is set; In the subframe 3 and 4 of UL CC, for the uplink ACK channel of 2 sub-frame allocation in the descending related subframe collection index of each DL CC respectively shown in grey among Fig. 1 and black fritter, also have and 1 reservation uplink ACK channel idle that subframe is corresponding, shown in white fritter among Fig. 1, wherein each fritter corresponding the continuous uplink ACK channel of at least one label.In addition when system load is light, in the descending sub frame of these 3 DL CC, OFDM (Orthogonal Frequency Division Multiplexing, OFDM) the number of symbols n that the PDCCH channel is shared CFILess, for example n CFI=2, the initial CCE label n of PDCCH channel occupancy so CCEAlways less than p=n CFI=2 o'clock N pValue.After distributing the uplink ACK channel, the 3rd fritter distributing to each subframe also is idle uplink ACK channel.At this moment all idle uplink ACK channels as shown in Figure 1, as we can see from the figure, for the idle uplink ACK channel in the uplink ACK channel of each DL CC reservation is discontinuously arranged, the Resource Block of these discontinuous idle uplink ACK channel correspondences can't be utilized when transfer of data, so formed waste.
The embodiment of the invention will be by less actual association number of sub frames and less n by allocation rule CFIThe idle uplink ACK block of channels that value causes is organized into continuous distribution, the Resource Block by these idle uplink ACK channel correspondences can be put together, and is supported in dynamic dispatching PUSCH transmission on these Resource Block better.Simultaneously can effectively reduce the signaling that the base station issues.
Fig. 2 is descending sub frame Allotment Serial Number, the branch gamete piece label of at least one DL CC of the present invention, the embodiment schematic diagram of reallocation uplink ACK channel.Present embodiment comprises:
Step 201 is at least one DL CC and/or descending sub frame Allotment Serial Number;
Step 202 is the sub-piece of uplink ACK channel distribution of the descending sub frame correspondence of DL CC, and divides gamete piece label;
Step 203, according to increasing progressively above-mentioned sequence number earlier, the order that increases progressively above-mentioned sub-piece label again to distribute the uplink ACK channel at least one DL CC.
Present embodiment is applicable in LTE-A TDD and the LTE-A FDD system that the base station is distributed in the process of uplink ACK channel for DL CC.The base station was divided into DL CC in pairs with azygous earlier before distributing the uplink ACK channel, again for their distributing carrier wave mapping sequence number, for the TDD system, also need distribute subframe to shine upon sequence number after distributing carrier wave mapping sequence number.According to above-mentioned sequence number and sub-piece label, by computing formula, obtain the uplink ACK channel that will distribute
Figure GPA00001287355500071
Below each step is described in detail.
In the LTE-A system, LTE UE can only insert a UL CC and a DL CC simultaneously, and LTE-A UE can insert A simultaneously ULIndividual UL CC and A DLIndividual DL CC, wherein A ULAnd A DLAll be that positive integer and both can not wait.
To LTE-A UE, as the DL CC number A of configuration DL＞1 and PDCCH when being dispersed on the DL CC of configuration transmission, according to the corresponding relation of LTE-AUE PDCCH place DL CC and uplink ACK channel place UL CC, might distribute the uplink ACK channel for the PDCCH that is handed down to this LTE-A UE at a plurality of DL CC at identical UL CC.A kind of corresponding relation be will issue for a plurality of DL CC the PDCCH uplink ACK channel dispersion of distributing at the A of configuration ULIndividual UL CC, as Fig. 3 example, wherein DL CC 1, DL CC 2, DL CC 3, UL CC1 and UL CC 2 have been disposed for some LTE-A UE, the PDCCH that issues at DL CC 1 distributes corresponding uplink ACK channel at UL CC 1, and the PDCCH that issues at DL CC 2 and DL CC 3 distributes corresponding uplink ACK channel at UL CC 2.Another kind of corresponding relation be will configuration the uplink ACK channel that distributes of the PDCCH that issues of all DL CC concentrate on certain UL CC of configuration, as Fig. 4 example, wherein disposed DL CC 1, DL CC 2, DL CC 3, UL CC 1 and UL CC 2 for some LTE-AUE, the PDCCH that issues at DL CC1, DL CC 2 and DL CC 3 concentrates on UL CC 2 and distributes corresponding uplink ACK channel.Wherein, in the description to example, be from the angle of a LTE-A UE.From the angle of system, the PDCCH place DL CC of each LTE-A UE can be identical with uplink ACK channel place UL CC corresponding relation, also can be different.
From the angle of system, to a UL CC, as long as at least one LTE-A UE and/or LTEUE are arranged at DL CC iThe PDCCH that issues distributes corresponding uplink ACK channel at this UL CC, will be DL CC at this UL CC so iThe PDCCH that issues reserves and distribution uplink ACK channel.
For convenience of description, in embodiments of the present invention, if a UL CC and a DL CC can be inserted simultaneously by a LTE UE, be called one and form member carrier, and will be called the other side's paired member carrier each other; Otherwise be called one group of paired member carrier, and will be called the other side's paired member carrier each other.In Fig. 3 and Fig. 4, UL CC 1 and DL CC 1, UL CC 2 and DL CC 2, two compositions that come to this are to member carrier; A UL CC and a DL CC under all the other situations then constitute one group of not paired member carrier.
In step 201, to be A at some UL CC when the base station 0(A 0〉=1) individual DL
Figure GPA00001287355500081
During the PDCCH channel allocation uplink ACK channel that issues, to LTE-A TDD system, can be similar LTE TDD system, arrange and the HARQ timing relationship according to the member carrier ratio of uplink subframe to downlink subframe, be A at UL CC 0Individual DL CC defines descending related subframe collection index respectively.When ratio of uplink subframe to downlink subframe arranges when identical, recommend to adopt the descending related subframe collection index identical with LTE TDD system, as shown in table 1.The above-mentioned actual number of subframes related with each DL CC is the number for element in the descending related subframe collection index of the current sub-frame of uplink definition of UL CC.Above-mentioned Allotment Serial Number can be the directly unified numbering distribution of at least one descending related subframe at least one DL CC, the order of considering element in the descending related subframe collection index has provided the interior subframe mapping sequence number of DL CC, recommends the sequence number of above-mentioned distribution to be made up of carrier wave mapping sequence number and subframe mapping sequence number.Above-mentionedly be specially for each the descending related sub-frame allocation sequence number at least one DL CC of identical UL CC mapping uplink ACK channel: be A 0Paired DL CC distributing carrier wave mapping sequence number q among the individual DL CC be that each related descending sub frame in each DL CC distributes subframe to shine upon sequence number m according to the order of elements of descending related subframe collection index.
To LTE-A FDD system, the above-mentioned actual number of subframes related with each DL CC is 1.Above-mentionedly be specially for each the descending related sub-frame allocation sequence number at least one DL CC of identical UL CC mapping uplink ACK channel: be among A0 the DL CC in pairs DL CC distributing carrier wave shine upon sequence number q.
In the process of distributing carrier wave mapping sequence number q, be A only 0Paired DL CC distributing carrier wave mapping sequence number among the individual DL CC, this is in order to allow paired DL CC adopt the uplink ACK channel allocation mechanism of LTE system, to keep the backwards compatibility to LTE UE.Be that above-mentioned at least one DL CC is at least one not paired DL CC.
Consider to be that the uplink ACK channel that two DL CC distribute same carrier wave mapping sequence number can cause distributing is in same area, may have the uplink ACK channel confliction between DL CC, be recommended as different DL CC and distribute different carrier wave mapping sequence numbers.As and have only DL CCi 0Be paired member carrier and A 0, be A at 〉=2 o'clock 0Not paired DL CC among the individual DL CC distributes different carrier mapping sequence number can regard set as respectively
Figure GPA00001287355500091
To the set 0 ..., A 0The mapping one by one of-2}.
After for not paired DL CC distributing carrier wave mapping sequence number, the base station can be notified to LTE-A UE with the carrier wave mapping sequence number of distributing in the following way.Mode one, the base station is the carrier wave mapping sequence number that not paired DL CC distributes at the paired DL CC broadcast announcement of UL CC.Mode two, the carrier wave that shines upon distribution according to preset rules paired DL CC label as per advice shines upon sequence number, and further, above-mentioned preset rules can be that the carrier wave label is to the mapping one by one of carrier wave mapping sequence number.Mode three, to LTE-AUE, the base station is notified the carrier wave mapping sequence number of the not paired DL CC of this LTE-A UE configuration at least by the proprietary signaling of UE.
In step 202, the base station first label distribution module is the sub-piece of uplink ACK channel distribution of the descending sub frame correspondence of DL CC, and divides gamete piece label.
The sub-piece of above-mentioned division refers to according to the different OFDM number of symbols of PDCCH channel occupancy n CFIThe time different CCE numbers carry out.
In the setting off a discussion of step 202 and 203, suppose that step 201 is to be A 0Paired DL CC distributing carrier wave mapping sequence number q among the individual DL CC, above-mentioned at least one DL CC are at least one DLCC in pairs, and establish not in pairs that the number of DL CC is A_unpair, 1≤A_unpair≤A 0, 0≤q＜A_unpair.
For the DL CC that has distributed carrier wave mapping sequence number q, n CFICCE number when value is p is
Figure GPA00001287355500101
Wherein
Figure GPA00001287355500102
Expression has distributed the bandwidth of representing with resource block number of the DLCC of carrier wave mapping sequence number q,
Figure GPA00001287355500103
Represent downward rounding operation.
To having distributed the DL CC of carrier wave mapping sequence number q, the uplink ACK channel corresponding with descending sub frame is after dividing sub-piece, and p sub-piece is by N before establishing Q, pIndividual uplink ACK channel is formed, and p sub-piece is by N so Q, p+1-N Q, pThe continuous uplink ACK channel of individual label is formed.N Q, pExpression has distributed the OFDM number of symbols n of the DL CC PDCCH channel occupancy of carrier wave mapping sequence number q CFIThe uplink ACK channel number that distributes during=p.
When distributing a uplink ACK channel for each CCE, have
Figure GPA00001287355500105
Max{x wherein, y} represents to get the greater computing among x and the y.Consider in pairs the corresponding uplink ACK channel of PDCCH channel allocation that issues of DL CC only may betide LTE-A UE, do not need to consider the backwards compatibility to LTEUE.When not paired DL CC is distributed the uplink ACK channel, can introduce the expense that some expense compression mechanisms reduce corresponding uplink ACK channel.A kind of expense compression mechanism is the uplink ACK channel number that the base station broadcast notice is reserved for not paired DL CC, and this moment is for LTE-A FDD system
Figure GPA00001287355500106
To LTE-A TDD system
Figure GPA00001287355500107
Wherein
Figure GPA00001287355500108
In the expression LTE-A FDD system for having distributed the not uplink ACK channel number reserved of the descending sub frame of DL CC correspondence in pairs of carrier wave mapping sequence number q,
Figure GPA00001287355500109
For having distributed the not uplink ACK channel number of the descending sub frame of m the element correspondence of descending related subframe collection index of DL CC reservation in pairs of carrier wave mapping sequence number q, min{x, y} represent to get smaller's computing among x and the y in the expression LTE-A TDD system.Another kind of expense compression mechanism be the base station broadcast notice for distributed carrier wave mapping sequence number q DL CC reserves the uplink ACK channel in pairs the time employed resource compressibility factor
Figure GPA00001287355500111
Wherein Be positive integer, at this moment
Figure GPA00001287355500113
Wherein
Figure GPA00001287355500114
Represent to round up computing.
Gamete piece label was according to CCE label n in above-mentioned minute CCECome a minute gamete piece label p.Further, CCE label n CCEIt is the label of the shared CCE of UE PDCCH channel.It can also be the initial CCE label of PDCCH channel occupancy when a plurality of CCE of PDCCH channel occupancy.
According to CCE label n CCECome minute detailed process of gamete piece label p to be: to be n to the descending sub frame internal label that distributed carrier wave mapping sequence number q CCECCE, { select a p value to make N among 0,1,2, the 3} from set p ∈ Q, p≤ f (n CCE)＜N Q, p+1, divide gamete piece label p, wherein f (n CCE) expression CCE label n CCEFunction.
When not introducing expense compression mechanism, namely
Figure GPA00001287355500115
The time, f (n is arranged CCE)=n CCEWhen having introduced the expense compression mechanism, LTE-A FDD system is had
Figure GPA00001287355500116
Perhaps
Figure GPA00001287355500117
LTE-A TDD system is had
Figure GPA00001287355500118
Perhaps
Figure GPA00001287355500119
Mod{x wherein, y} represents the y modulo operation of x.
Step 203 is that at least one DL CC distributes the uplink ACK channel according to increasing progressively earlier that order that above-mentioned sequence number increases progressively above-mentioned sub-piece label again comes.
For A 0Paired DL CC among the individual DL CC for keeping the backwards compatibility to LTE UE, reuses the uplink ACK channel allocation mechanism of LTE system, is not described in detail in this.Discussed below is the process of distributing the uplink ACK channel for not paired DL CC.
To LTE-A TDD system, when above-mentioned sequence number is made up of carrier wave mapping sequence number q and subframe mapping sequence number m, above-mentionedly come to be specially at least one DL CC distributes the uplink ACK channel according to increasing progressively the order that above-mentioned sequence number increases progressively above-mentioned sub-piece label more earlier: according to increase progressively carrier wave mapping sequence number q earlier, increase progressively subframe mapping sequence number m again, to come be at least one DL CC distribution uplink ACK channel for the order that increases progressively sub-piece label p at last; Perhaps according to increase progressively subframe mapping sequence number m earlier, increase progressively carrier wave mapping sequence number q again, to come be that at least one DL CC distributes uplink ACK channel for the order that increases progressively sub-piece label p at last.
In the DL CC that has distributed carrier wave mapping sequence number q, for m element k of descending related subframe collection index mLabel is n in the corresponding descending sub frame CCECCE, according to increase progressively earlier carrier wave mapping sequence number q, again increase progressively subframe mapping sequence number m, increase progressively the order of sub-piece label p at last, distribute the detailed process of uplink ACK channel as follows:
If the uplink ACK channel label that distributes is Sub-piece label p value substitution with step 202 distribution
N PUCCH ( 1 ) = Σ i = 0 A _ unpair - 1 ( M i × N i , p + g 1 ( i , p ) ) + Σ i = 0 q - 1 g 2 ( i , p ) + f ( n CCE ) - N q , p + N PUCCH , unpair ( 1 )
In calculate the uplink ACK channel label of distribution, M wherein iThe related descending sub frame number that expression has distributed the not descending related subframe collection index of paired DL CC of carrier wave mapping sequence number i to provide,
Figure GPA00001287355500124
Figure GPA00001287355500125
Expression is according at least one the not initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels of DL CC CCE label mapping in pairs.
Do not become when DL CC had identical ratio of uplink subframe to downlink subframe, for each does not have identical related descending sub frame number M in descending related subframe collection index of DL CC definition in pairs, this moment g 1(i, p)=m * (N I, p+1-N I, p), g 2(i, p)=N I, p+1-N I, p
In the DL CC that has distributed carrier wave mapping sequence number q, for m element k of descending related subframe collection index mLabel is n in the corresponding descending sub frame CCECCE, according to increase progressively earlier subframe mapping sequence number m, again increase progressively carrier wave mapping sequence number q, increase progressively the order of sub-piece label p at last, distribute the detailed process of uplink ACK channel as follows:
If the uplink ACK channel label that distributes is
Figure GPA00001287355500131
Sub-piece label p value substitution with step 202 distribution
N PUCCH ( 1 ) = Σ i = 0 A _ unpair - 1 M i × N i , p + Σ i = 0 q - 1 M i × ( N i , p + 1 - N i , p ) + m × ( N q , p + 1 - N q , p ) + f ( n CCE ) - N q , p + N PUCCH , unpair ( 1 )
In calculate the uplink ACK channel label of distribution, M wherein iThe related descending sub frame number that expression has distributed the descending related subframe collection index of the DL CC of carrier wave mapping sequence number i to provide,
Figure GPA00001287355500133
Expression is according at least one the not initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels of DL CC CCE label mapping in pairs.
To LTE-A FDD system, above-mentioned sequence number is made up of carrier wave mapping sequence number q, above-mentionedly comes to be specially at least one DL CC distributes the uplink ACK channel according to increasing progressively the order that above-mentioned sequence number increases progressively above-mentioned sub-piece label more earlier: coming according to the order that increases progressively carrier wave mapping sequence number q earlier, increases progressively sub-piece label p again is at least one DL CC distribution uplink ACK channel.The above-mentioned actual number of subframes related with each DL CC is 1.
In the DL CC that has distributed carrier wave mapping sequence number q, be n for label in the descending sub frame of correspondence CCECCE, according to increasing progressively carrier wave mapping sequence number q earlier, increasing progressively the order of sub-piece label p again, distribute the detailed process of uplink ACK channel as follows:
If the uplink ACK channel label that distributes is
Figure GPA00001287355500134
Sub-piece label p value substitution with step 202 distribution
n PUCCJ ( 1 ) = Σ i = 0 q - 1 N i , p + 1 + Σ i = q + 1 A _ unpair - 1 N i , p + f ( n CCE ) + N PUCCH , unpair ( 1 )
In calculate the uplink ACK channel label of distribution, wherein,
Figure GPA00001287355500136
Expression is according at least one the not initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels of DL CC CCE label mapping in pairs.
In LTE-A TDD system, when being when at least one DL CC of identical uplink member carrier mapping uplink ACK channel distributes uplink ACK channel, according to the corresponding descending related subframe collection index K of each DL CC in the greatest member number arrange.The embodiment of the invention actual number of subframes related with each DL CC of giving chapter and verse, be each the descending related sub-frame allocation sequence number at least one DL CC of identical uplink member carrier mapping uplink ACK channel, the sub-piece of uplink ACK channel distribution that distributes in the subframe also divides gamete piece label, is that at least one DL CC distributes uplink ACK channel according to increasing progressively earlier that order that above-mentioned sequence number increases progressively above-mentioned sub-piece label again comes.Continue the example of Fig. 1, suppose that DL CC3 is paired DL CC, be DL CC 1 and DL CC 2 distributing carrier wave mapping sequence numbers 0 and respectively in pairs at 1 o'clock, in pairs and not in pairs the uplink ACK channel allocation of DL CC notify respectively and shine upon initial biasing
Figure GPA00001287355500141
With
Figure GPA00001287355500142
According to increase progressively earlier carrier wave mapping sequence number, again increase progressively subframe mapping sequence number, increase progressively the order of sub-piece label at last, the uplink ACK channel that distributes for each DL CC is as shown in Figure 5.As seen from Figure 4, the embodiment of the invention can with in pairs DL CC corresponding by less actual association number of sub frames and less n CFIThe idle uplink ACK block of channels that value causes is organized into continuous distribution, thereby can be supported in dynamic dispatching physical layer Uplink Shared Channel on the Resource Block corresponding with these idle uplink ACK block of channels better.
Simultaneously, the embodiment of the invention avoids the base station to notify a uplink ACK channel to shine upon initial biasing at each DL CC, gets final product, can effectively reduce the signaling that the base station issues for not paired DL CC notifies a common uplink ACK channel to shine upon initial biasing.Simultaneously, this method also can be used for the FDD system, to keep the same design of LTE-A TDD and FDD system.In LTE-A FDD system, can be with not paired DL CC because less n CFIThe idle uplink ACK block of channels that value causes is organized into continuous distribution, can be supported in dynamic dispatching physical layer Uplink Shared Channel on the Resource Block corresponding with these idle uplink ACK block of channels better.
Fig. 6 is the embodiment schematic diagram that at least one DL CC reserves the uplink ACK channel for the present invention
Step 601 is reserved the uplink ACK channel at least one DL CC according to the maximum number of subframes related with DL CC;
Step 602 is at least one DL CC and/or descending sub frame Allotment Serial Number;
Step 603 is the sub-piece of uplink ACK channel distribution of the descending sub frame correspondence of DL CC, and divides gamete piece label;
Step 604, according to increasing progressively above-mentioned sequence number earlier, the order that increases progressively above-mentioned sub-piece label again to distribute the uplink ACK channel at least one DL CC.
Present embodiment is applicable in LTE-A TDD and the LTE-A FDD system that the base station is distributed in the process of uplink ACK channel for DL CC.The base station is before distributing the uplink ACK channel, reserve the uplink ACK channel for some DLCC earlier, again DL CC is divided into paired with azygous, be their distributing carrier wave mapping sequence number again, for the TDD system, after distributing carrier wave mapping sequence number, also need distribute subframe mapping sequence number, according to above-mentioned sequence number and sub-piece label, by computing formula, obtain the uplink ACK channel that will distribute
Figure GPA00001287355500151
Below each step is described in detail.
In step 601, to LTE-A TDD system, can be similar LTE TDD system, arrange and the HARQ timing relationship according to the member carrier ratio of uplink subframe to downlink subframe, define descending related subframe collection index in uplink member carrier respectively at least one DL CC.When ratio of uplink subframe to downlink subframe arranges when identical, recommend to adopt the descending related subframe collection index identical with LTE TDD system.A kind of simple resource reservation mode is to reserve the uplink ACK channel at least one DL CC according to the greatest member number in the descending related subframe collection index of each DL CC, namely related with DLCC maximum number of subframes.To the LTE-AFDD system, the above-mentioned maximum number of subframes related with each DL CC is 1.
The initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels that the uplink ACK channel resource of reserving at least one DL CC shines upon according at least one DLCC CCE label by expression
Figure GPA00001287355500152
Notify UE.When above-mentioned at least one DL CC refers to that at least one is in pairs during DL CC, according to the initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels of at least one DL CC CCE label mapping
Figure GPA00001287355500153
Namely refer to
Figure GPA00001287355500154
This parameter can be notified UE by base station broadcast.In addition, for each paired DL CC, the base station also wants different uplink ACK channels of broadcast announcement to shine upon initial biasing, and shines upon initial biasing and reserve the uplink ACK channel resource by the uplink ACK channel of notice.
To a uplink member carrier, the PDCCH channel allocation uplink ACK channel that issues for not paired DL CC only may betide LTE-A UE, so this part resource is distributed the problem that can not consider the LTEUE backwards compatibility.In order to reduce the resource overhead of uplink ACK channel, for the uplink ACK channel resource that not paired DL CC reserves can be reserved according to maximum CCE number, but introduce some expense compression mechanisms as the LTE system.A kind of expense compression mechanism is the uplink ACK channel number that the base station broadcast notice is reserved for not paired DL CC, for example Or
Figure GPA00001287355500162
Another kind of expense compression mechanism is that the base station is extensively known employed resource compressibility factor when DL CC reserves the uplink ACK channel in pairs all, for example Wherein
Figure GPA00001287355500164
Be positive integer, DL CC can be not identical in pairs to each, can be different yet.When notice resource compressibility factor, the uplink ACK channel number of reserving for the not paired DL CC that has distributed carrier wave mapping sequence number q calculates according to the resource compressibility factor of notice, for example to LTE-A TDD system
Figure GPA00001287355500166
To LTE-A FDD system
Figure GPA00001287355500167
P wherein MaxThe maximum OFDM number of symbols of PDCCH channel occupancy in the expression subframe.In the LTE system, according to the downlink system bandwidth with whether be the subframe of carrying TDD system synchronization channel, p MaxValue can be 2,3 or 4.
Step 602 base station in 604 refers to that at least one DL CC distributes uplink ACK channel the base station is that the DL CC that has reserved ack channel distributes the uplink ACK channel respectively according to above-mentioned sequence number and sub-piece label, concrete distribution method and step 201 are namely distributed a cover ack channel to the DL CC that has reserved ack channel according to step 302 to 203 identical.
The embodiment of the invention proposes to be at least one the DLCC distributing carrier wave mapping sequence number at identical UL CC mapping uplink ACK channel, reserve the uplink ACK channel according to the maximum number of subframes related with DL CC at least one DLCC, come to be at least one DL CC continuous dispensing uplink ACK channel according to sequence number and sub-piece label.The embodiment of the invention can with not in pairs the idle uplink ACK block of channels of DL CC correspondence be organized into continuous distribution, thereby can be supported in dynamic dispatching PUSCH transmission on the Resource Block corresponding with these idle uplink ACK block of channels better.
Fig. 7 is the structural representation of embodiment of the invention base station, and the base station in the present embodiment comprises:
The first sequence number distribution module 701 is used at least one DL CC and/or descending sub frame Allotment Serial Number;
The first label distribution module 702 is used to the sub-piece of uplink ACK channel distribution of the descending sub frame correspondence of DL CC, and divides gamete piece label;
First channel assignment module 703 is used for according to increasing progressively above-mentioned sequence number earlier, and the order that increases progressively above-mentioned sub-piece label again to distribute the uplink ACK channel at least one DL CC.
Can also comprise:
First sending module 704, the carrier wave that is used for the transmission first sequence number module assigns shines upon sequence number or CC label;
Can also comprise:
First reserves module 705, and being used for according to the maximum number of subframes related with DL CC be at least one DL CC reservation uplink ACK channel, and will reserve the result and send to the first sequence number distribution module.
The embodiment of the invention is used for the embodiment shown in Fig. 2,6, and its characteristics repeat no more.
Fig. 8 is the structural representation of embodiment of the invention UE, and the UE in the present embodiment comprises:
Second channel distribution module 801 is used for according to increasing progressively sequence number earlier, and the order that increases progressively sub-piece label again to distribute the uplink ACK channel at least one DL CC.
Can also comprise:
First receiver module 802 is used for reception carrier mapping sequence number or CC label and carrier wave is shone upon sequence number sending to the second channel distribution module or the CC label being sent to first mapping block;
If what first receiver module received is the CC label, also comprise:
First mapping block 803 is used for shining upon sequence number according to preset rules according to the carrier wave that the CC label that receives shines upon distribution.
The embodiment of the invention is used for the embodiment shown in Fig. 2,6, and its characteristics repeat no more.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding, technical scheme 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, the perhaps network equipment etc.) carry out the above-mentioned method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in or at least one device that is different from present embodiment.The module of above-described embodiment can be merged into a module, also can further split at least one submodule.
The invention described above embodiment sequence number does not represent the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.

Claims (22)

1. the method that the multicarrier ack channel distributes is characterized in that, comprising:
Be at least one DL CC and/or descending sub frame Allotment Serial Number, comprise: for the TDD system: be at least one DL CC distributing carrier wave mapping sequence number; According to the actual number of subframes related with each DL CC, be each the descending related sub-frame allocation subframe mapping sequence number at least one DL CC of identical UL CC mapping uplink ACK channel; For the FDD system: be at least one DL CC distributing carrier wave mapping sequence number;
Be the sub-piece of uplink ACK channel distribution of the descending sub frame correspondence of DL CC, and divide gamete piece label;
According to increasing progressively described sequence number earlier, the order that increases progressively described sub-piece label again to distribute the uplink ACK channel at least one DL CC.
2. a kind of multicarrier ack channel as claimed in claim 1 method of distributing is characterized in that, described actual number of subframes comprises according to the setting of member carrier ratio of uplink subframe to downlink subframe and HARQ timing relationship and pre-determining.
3. a kind of multicarrier ack channel as claimed in claim 1 method of distributing is characterized in that, described at least one DL CC comprises the azygous DL CC of UL CC of at least one and mapping uplink ACK channel.
4. the method for a kind of multicarrier ack channel distribution as claimed in claim 1 is characterized in that, described distribution subframe mapping sequence number specifically comprises according to the order of elements of descending related subframe collection index distributes subframe mapping sequence number.
5. as the method for claim 1 or 4 described a kind of multicarrier ack channels distribution, it is characterized in that, distribute described carrier wave mapping sequence number and distribute described subframe mapping sequence number, specifically comprise:
For different DL CC distribute different carrier wave mapping sequence numbers;
Be the different subframe mapping sequence number of different sub-frame allocation.
6. a kind of multicarrier ack channel as claimed in claim 1 method of distributing, it is characterized in that, the sub-piece of uplink ACK channel distribution of described descending sub frame correspondence for DL CC comprises, the sub-piece of uplink ACK channel distribution of the descending sub frame correspondence that the different CCE numbers during according to the different OFDM number of symbols of PDCCH channel occupancy are DL CC; Described minute gamete piece label comprises according to the CCE label and comes a minute gamete piece label.
7. a kind of multicarrier ack channel as claimed in claim 6 method of distributing, it is characterized in that, described CCE label is the label of the shared CCE of UE PDCCH channel, is labels of the initial CCE of PDCCH channel occupancy when at least two CCE of PDCCH channel occupancy.
8. a kind of multicarrier ack channel as claimed in claim 6 method of distributing is characterized in that, describedly comes a minute gamete piece label to comprise according to the CCE label:
{ select a p value to make N among 0,1,2, the 3} from set p ∈ Q, p≤ f (n CCE)＜N Q, p+1, wherein CCE is that the descending sub frame internal label that has distributed carrier wave to shine upon sequence number q is n CCECCE, divide gamete piece label p, wherein f (n CCE) expression CCE label n CCEFunction, when not introducing the expense compression mechanism, f (n CCE)=n CCEWhen introducing the expense compression mechanism, have for LTE-A FDD system
Figure FDA00003498639000021
Perhaps LTE-A TDD system is had
Figure FDA00003498639000023
Perhaps
Figure FDA00003498639000024
Wherein,
Figure FDA00003498639000025
Be expressed as distributed carrier wave mapping sequence number q DL CC reserves the uplink ACK channel in pairs the time employed resource compressibility factor,
Figure FDA00003498639000026
In the expression LTE-A FDD system for having distributed the not uplink ACK channel number reserved of the descending sub frame of DL CC correspondence in pairs of carrier wave mapping sequence number q, For having distributed the not uplink ACK channel number of the descending sub frame of m the element correspondence of descending related subframe collection index of DL CC reservation in pairs of carrier wave mapping sequence number q, mod{x, y} represent the y modulo operation of x, N in the expression LTE-A TDD system Q, pExpression has distributed preceding p the uplink ACK channel number that sub-piece comprises of the descending sub frame of DL CC of carrier wave mapping sequence number q.
9. a kind of multicarrier ack channel as claimed in claim 1 method of distributing is characterized in that, and is described according to increasing progressively described sequence number earlier, and it is that at least one DL CC distributes uplink ACK channel that the order that increases progressively described sub-piece label is again come, and comprising:
For the TDD system:
According to increase progressively carrier wave mapping sequence number earlier, increase progressively subframe mapping sequence number again, to come be that at least one DL CC distributes uplink ACK channel for the order that increases progressively sub-piece label at last; Or
According to increase progressively subframe mapping sequence number earlier, increase progressively carrier wave mapping sequence number again, to come be that at least one DL CC distributes uplink ACK channel for the order that increases progressively sub-piece label at last;
For the FDD system:
Coming according to the order that increases progressively carrier wave mapping sequence number earlier, increases progressively sub-piece label again is that at least one DL CC distributes uplink ACK channel.
10. a kind of multicarrier ack channel as claimed in claim 9 method of distributing, it is characterized in that, for the TDD system, described according to increase progressively carrier wave mapping sequence number earlier, increase progressively subframe mapping sequence number again, the order that increases progressively sub-piece label at last to comprise at least one DL CC distributes the uplink ACK channel:
With the sub-piece label p value substitution that distributes
n PUCCH ( 1 ) = Σ i = 0 A _ unpair - 1 ( M i × N i , p + g 1 ( i , p ) ) + Σ i = 0 q - 1 g 2 ( i , p ) + f ( n CCE ) - N q , p + N PUCCH , unpair ( 1 )
In calculate the uplink ACK channel label of distribution
Figure FDA00003498639000032
Wherein:
M iThe related descending sub frame number that expression has distributed the not descending related subframe collection index of paired DL CC of carrier wave mapping sequence number i to provide, A_unpair-1 are the not number of paired DL CC that distributes the uplink ACK channel at identical UL CC, f (n CCE) be CCE label n CCEFunction, wherein, when not introducing the expense compression mechanism, f (n CCE)=n CCEWhen introducing the expense compression mechanism,
Figure FDA00003498639000033
Perhaps
Figure FDA00003498639000034
Wherein,
Figure FDA00003498639000035
Be expressed as distributed carrier wave mapping sequence number q DL CC reserves the uplink ACK channel in pairs the time employed resource compressibility factor,
Figure FDA00003498639000041
In the expression LTE-A TDD system for having distributed the not uplink ACK channel number of the descending sub frame of m the element correspondence of descending related subframe collection index of DL CC reservation in pairs of carrier wave mapping sequence number q, N Q, pExpression has distributed preceding p the uplink ACK channel number that sub-piece comprises of the descending sub frame of DL CC of carrier wave mapping sequence number q, and m is subframe mapping sequence number,
Figure FDA00003498639000042
The initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels that expression is shone upon according at least one paired DL CC CCE label,
Figure FDA00003498639000043
Figure FDA00003498639000044
11. the method that a kind of multicarrier ack channel as claimed in claim 10 distributes is characterized in that, when described not paired DL CC has identical ratio of uplink subframe to downlink subframe, and g 1(i, p)=m * (N I, p+1-N I, p), g 2(i, p)=N I, p+1-N I, p
12. the method that a kind of multicarrier ack channel as claimed in claim 9 distributes, it is characterized in that, for the TDD system, described according to increase progressively subframe mapping sequence number earlier, increase progressively carrier wave mapping sequence number again, the order that increases progressively sub-piece label at last to comprise at least one DL CC distributes the uplink ACK channel:
With the sub-piece label p value substitution that distributes
n PUCCH ( 1 ) = Σ i = 0 A _ unpair - 1 M i × N i , p + Σ i = 0 q - 1 M i × ( N i , p + 1 - N i , p ) + m × ( N q , p + 1 - N q , p ) + f ( n CCE ) - N q , p + N PUCCH , unpair ( 1 )
In calculate the uplink ACK channel label of distribution
Figure FDA00003498639000046
Wherein:
M iThe related descending sub frame number that expression has distributed the descending related subframe collection index of the DL CC of carrier wave mapping sequence number i to provide, Expression is according at least one the not initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels of DL CC CCE label mapping in pairs, and A_unpair-1 is the not number of paired DL CC that distributes the uplink ACK channel at identical UL CC, f (n CCE) be CCE label n CCEFunction, wherein, when not introducing the expense compression mechanism, f (n CCE)=n CCEWhen introducing the expense compression mechanism, Perhaps Wherein,
Figure FDA00003498639000053
Be expressed as distributed carrier wave mapping sequence number q DL CC reserves the uplink ACK channel in pairs the time employed resource compressibility factor,
Figure FDA00003498639000054
In the expression LTE-A TDD system for having distributed the not uplink ACK channel number of the descending sub frame of m the element correspondence of descending related subframe collection index of DL CC reservation in pairs of carrier wave mapping sequence number q, N Q, pExpression has distributed preceding p the uplink ACK channel number that sub-piece comprises of the descending sub frame of DL CC of carrier wave mapping sequence number q, and m is subframe mapping sequence number.
13. the method that a kind of multicarrier ack channel as claimed in claim 9 distributes is characterized in that, for the FDD system, describedly comes to comprise at least one DL CC distributes the uplink ACK channel according to the order that increases progressively carrier wave mapping sequence number earlier, increases progressively sub-piece label again:
With the sub-piece label p value substitution that distributes
n PUCCH ( 1 ) = Σ i = 0 q - 1 N i , p + 1 + Σ i = q + 1 A _ unpair - 1 N i , p + f ( n CCE ) + N PUCCH , unpair ( 1 )
In calculate the uplink ACK channel label of distribution
Figure FDA00003498639000056
Wherein:
Figure FDA00003498639000057
Expression is according at least one the not initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels of DL CC CCE label mapping in pairs, and A_unpair-1 is the not number of paired DL CC that distributes the uplink ACK channel at identical UL CC, f (n CCE) be CCE label n CCEFunction, wherein, when not introducing the expense compression mechanism, f (n CCE)=n CCEWhen introducing the expense compression mechanism,
Figure FDA00003498639000058
Perhaps
Figure FDA00003498639000059
Wherein,
Figure FDA00003498639000061
Be expressed as distributed carrier wave mapping sequence number q DL CC reserves the uplink ACK channel in pairs the time employed resource compressibility factor,
Figure FDA00003498639000062
For having distributed the not uplink ACK channel number reserved of the descending sub frame of DL CC correspondence in pairs of carrier wave mapping sequence number q, q is carrier wave mapping sequence number in the expression LTE-A FDD system, and p is sub-piece label, N I, pExpression has distributed preceding p the uplink ACK channel number that sub-piece comprises of the descending sub frame of DL CC of carrier wave mapping sequence number i.
14. the method that a kind of multicarrier ack channel as claimed in claim 1 distributes is characterized in that, also comprises before at least one DL CC and/or descending sub frame Allotment Serial Number described:
Come to reserve the uplink ACK channel at least one DL CC according to the maximum number of subframes related with DL CC.
15. the method that a kind of multicarrier ack channel as claimed in claim 1 distributes also comprises before the described distribution uplink ACK channel:
For notifying a uplink ACK channel to shine upon initial biasing respectively with paired DL CC in pairs.
16. a base station is characterized in that, comprising:
The first sequence number distribution module is used at least one DL CC and/or descending sub frame Allotment Serial Number, wherein, and for the TDD system: be at least one DL CC distributing carrier wave mapping sequence number; According to the actual number of subframes related with each DL CC, be each the descending related sub-frame allocation subframe mapping sequence number at least one DL CC of identical UL CC mapping uplink ACK channel; For the FDD system: be at least one DL CC distributing carrier wave mapping sequence number;
The first label distribution module is used to the sub-piece of uplink ACK channel distribution of the descending sub frame correspondence of DL CC, and divides gamete piece label;
First channel assignment module is used for according to increasing progressively described sequence number earlier, and the order that increases progressively described label again to distribute the uplink ACK channel at least one DL CC.
17. a kind of base station as claimed in claim 16 is characterized in that, comprising:
First sending module is used for sending carrier wave mapping sequence number or CC label.
18. a kind of base station as claimed in claim 16 is characterized in that, comprising:
First reserves module, and being used for according to the maximum number of subframes related with DL CC is that at least one DL CC reserves the uplink ACK channel.
19. a UE is characterized in that, comprising:
The second channel distribution module, be used for according to increasing progressively sequence number earlier, the order that increases progressively sub-piece label again to distribute the uplink ACK channel at least one DL CC, for the TDD system, described sequence number comprises carrier wave mapping sequence number and subframe mapping sequence number, for the FDD system, described sequence number comprises carrier wave mapping sequence number, wherein, described carrier wave mapping sequence number is that the base station is the carrier wave mapping sequence number that at least one DL CC distributes, described subframe mapping sequence number is that the base station is according to the actual number of subframes related with each DL CC, be the subframe mapping sequence number in each descending related sub-frame allocation of at least one DL CC of identical UL CC mapping uplink ACK channel, described sub-piece label is that the base station is the sub-piece of uplink ACK channel distribution of descending sub frame correspondence of DL CC and the sub-piece label that distributes.
20. as a kind of UE as described in the claim 19, it is characterized in that, also comprise:
First receiver module is used for reception carrier mapping sequence number or CC label.
21. as a kind of UE as described in the claim 19, it is characterized in that, if what receive is the CC label, also comprise:
First mapping block is used for shining upon sequence number according to preset rules according to the carrier wave that the CC label that receives shines upon distribution.
22. the system that the multicarrier ack channel distributes is characterized in that, comprises the base station:
Described base station is used at least one DL CC and/or descending sub frame Allotment Serial Number, wherein, and for the TDD system: be at least one DL CC distributing carrier wave mapping sequence number; According to the actual number of subframes related with each DL CC, be each the descending related sub-frame allocation subframe mapping sequence number at least one DL CC of identical UL CC mapping uplink ACK channel; For the FDD system: be at least one DL CC distributing carrier wave mapping sequence number; Be the sub-piece of uplink ACK channel distribution of the descending sub frame correspondence of DL CC, and divide gamete piece label; Be used for according to increasing progressively above-mentioned sequence number earlier, the order that increases progressively above-mentioned sub-piece label again to distribute the uplink ACK channel at least one DL CC.
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