CN102084704B - Method, device and system for allocating an ACK channel under carrier aggregation - Google Patents

Abstract

The present invention provides a method, device and system for allocating ACK channel under carrier aggregation. The method and device include that a base station allocates a carrier mapping sequence number for at least one CC; and allocates an ACK channel for at least one CC according to the above carrier mapping sequence number and the actual number of sub-frames associated with each CC. The dynamically scheduling of PUSCH transmission on idle resource blocks could be better supported and signals sent downwardly from the base station could be reduced effectively with the invention.

Description

Ack channel distribution method under a kind of carrier aggregation, equipment and system

Technical field

The embodiment of the present invention relates to the communication technology, particularly relates to ack channel distribution method, equipment and system under a kind of carrier aggregation.

Background technology

By LTE (Long Term Evolution, Long Term Evolution) the enhancing LTE-A of 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 wider 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), in the LTE-A of carrier aggregation, can use simultaneously a plurality of member carriers, to obtain wider 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 identical frequency band or even the discontinuous spectrum in different frequency bands.In the LTE-A system, LTE UE (LTE User Equipment, the LTE subscriber equipment) can only access one of them or a pair of member carrier carries out data transmit-receive, carry out data transmit-receive and LTE-A UE can access a plurality of member carriers simultaneously according to its ability and business demand.Carrier aggregation technology also is spectrum aggregating (Spectrum Aggregation) technology, perhaps bandwidth expansion (BandwidthExtension) technology sometimes.

In the LTE-A system, each member carrier has independently HARQ (Hybrid AutomaticRepeat Request, the request of physical layer mixed automatic retransfer) process, and for LTE-A UE can configure different UL CC (UpLink Component Carrier, uplink member carrier) and DL CC (DownLink Component Carrier, downlink member carrier) number.When LTE-A UE accesses a plurality of DL CC and a plurality of UL CC transceiving data simultaneously, be a plurality of PDCCH (Physical Downlink Control CHannel that a plurality of DL CC issue at a UL CC possibly, the physical layer descending control channel) distribute respectively uplink ACK channel (up responder link), or to be that the base station is at a plurality of PUSCH (Physical Uplink Shared CHannel, physical layer Uplink Shared Channel) of a plurality of UL CC scheduling difference allocation of downlink ack channel at a DL CC.

In prior art, the LTE-A base station is that the method for a plurality of CC assigning ACK is that the different initial biasings of ack channel mapping is being set respectively for each CC, caused the discontinuous of ack channel distribution, and needing the base station is signaling under each initial biasing, has increased the quantity of the lower signaling of base station.

Summary of the invention

The embodiment of the present invention provides ack channel distribution method, the equipment and system under a kind of carrier aggregation.In order to distribute continuously ack channel corresponding to different carrier actual use subframe.

The embodiment of the present invention provides the distribution method of the ack channel under a kind of carrier aggregation, comprising:

Be at least one member carrier CC distributing carrier wave mapping sequence number;

Come to be at least one CC assigning ACK according to above-mentioned carrier wave mapping sequence number with the actual number of subframes related with each CC;

When described ack channel was the uplink ACK channel, described assigning ACK comprised:

For the TDD system, at least one DL CC distributing carrier wave mapping sequence number is when DL CC distributes described carrier wave mapping sequence number in pairs in pairs and, first { select a p value to make N in 0,1,2,3} from set p ∈ when described _{J, p}≤ f (n _CCE)＜N _{J, p+1}With the p value substitution that obtains

$n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}\underset{m=0}{\overset{M_a-1}{\mathrm{\Σ}}}{N}_{a,m}^{\mathrm{ACK}}+(M_j-m-1)\×N_{j,p}+m\×N_{j,p+1}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH}}^{\left(1\right)}$

In calculate the uplink ACK channel label of continuous dispensing; Or

For the TDD system, when described at least one DL CC distributing carrier wave mapping sequence number is when DL CC distributes described carrier wave mapping sequence number in pairs, for DL CC in pairs:

First { select a p value to make N in 0,1,2,3} from set p ∈ _{J, p}≤ f (n _CCE)＜N _{J, p+1}With the p value substitution that obtains

$n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}\underset{m=0}{\overset{M_a-1}{\mathrm{\Σ}}}{N}_{a,m}^{\mathrm{ACK}}+(M_j-m-1)\×N_{j,p}+m\×N_{j,p+1}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH},\mathrm{unpair}}^{\left(1\right)}$

In calculate the uplink ACK channel label of continuous dispensing;

Wherein, f (n _CCE) expression control channel unit CCE label n _CCEFunction, N _{J, p}And N _{J, p+1}Expression has distributed interior all physical layer descendings of descending sub frame of DL CC of carrier wave mapping sequence number j to control the uplink ACK channel number that distributes when PDCCH take p and p+1 OFDM symbol, M _aAnd M _jExpression has distributed the descending related subframe collection index element number of the DL CC of carrier wave mapping sequence number a and j,

Be expressed as the uplink ACK channel number of descending sub frame reservation corresponding to descending related subframe collection index m element of the DL CC that has distributed carrier wave mapping sequence number a, Expression is according to the initial biasing of uplink ACK channel in all physical layer ascending control channel PUCCH form 1/1a/1b channels of at least one DL CC CCE label mapping; Or

For the FDD system, when described at least one DL CC distributing carrier wave mapping sequence number be when DL CC distributes described carrier wave mapping sequence number in pairs in pairs and:

According to $n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}{N}_a^{\mathrm{ACK}}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH}}^{\left(1\right)}$ Calculate the uplink ACK channel label of continuous dispensing; Or

For the FDD system, when described at least one DL CC distributing carrier wave mapping sequence number is only when DL CC distributes described carrier wave mapping sequence number in pairs, for paired DL CC:

According to $n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}{N}_a^{\mathrm{ACK}}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH},\mathrm{unpair}}^{\left(1\right)}$ Calculate the uplink ACK channel label of continuous dispensing;

Wherein, f (n _CCE) expression CCE label n _CCEFunction,

Be expressed as the uplink ACK channel number of the descending sub frame reservation of the DL CC that has distributed carrier wave mapping sequence number a, The initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels that expression is shone upon according at least one DL CC CCE label,

Be the not initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels of DL CC CCE label mapping in pairs;

When described ack channel was descending ack channel, described assigning ACK comprised:

When described at least one UL CC distributing carrier wave mapping sequence number be when UL CC distributes described carrier wave mapping sequence number in pairs in pairs and:

According to

$n_{\mathrm{PHICH}}^{\mathrm{group}}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}{M}_a{N}_{\mathrm{PHICH},a}^{\mathrm{group}}+(I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{lowest}\_\mathrm{index}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH},j}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH},j}^{\mathrm{group}},$

Calculate the descending ack channel label of distribution; Or

When described at least one UL CC distributing carrier wave mapping sequence number is only when UL CC distributes described carrier wave mapping sequence number in pairs, for paired UL CC:

According to

$n_{\mathrm{PHICH}}^{\mathrm{group}}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}{M}_a{N}_{\mathrm{PHICH},a}^{\mathrm{group}}+(I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{lowest}\_\mathrm{index}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH},j}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH},j}^{\mathrm{group}},$

Calculate the descending ack channel label of distribution;

Wherein,

The Physical Resource Block label that the expression physical layer Uplink Shared Channel PUSCH corresponding with the descending ack channel that distributes takies, n _DMRS0, I is indicated or directly be set to demodulation pilot frequency circular shift information by the corresponding PUSCH that receives recently when not indicating _PHICHWhen having distributed the corresponding ratio of uplink subframe to downlink subframe 0 of UL CC of carrier wave mapping sequence number j and PUSCH to be positioned at subframe 4 or subframe 9 in the TDD system value be 1, other the time value be 0,

Value is 4 in short Cyclic Prefix subframe structure, value is 2 in the long loop prefix subframe structure, The descending ack channel group number of reserving for the subframe of the UL CC that distributed carrier wave mapping sequence number j in expression DL CC.

The embodiment of the present invention also provides a kind of base station, comprising:

The first distribution module is used at least one member carrier CC distributing carrier wave mapping sequence number;

The second distribution module is used for to be at least one CC assigning ACK according to carrier wave mapping sequence number with the actual number of subframes related with each DL CC;

When described ack channel was the uplink ACK channel, described assigning ACK comprised:

For the TDD system, at least one DL CC distributing carrier wave mapping sequence number is when DL CC distributes described carrier wave mapping sequence number in pairs in pairs and, first { select a p value to make N in 0,1,2,3} from set p ∈ when described _{J, p}≤ f (n _CCE)＜N _{J, p+1}With the p value substitution that obtains

$n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}\underset{m=0}{\overset{M_a-1}{\mathrm{\Σ}}}{N}_{a,m}^{\mathrm{ACK}}+(M_j-m-1)\×N_{j,p}+m\×N_{j,p+1}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH}}^{\left(1\right)}$

In calculate the uplink ACK channel label of continuous dispensing; Or

For the TDD system, when described at least one DL CC distributing carrier wave mapping sequence number is when DL CC distributes described carrier wave mapping sequence number in pairs, for DL CC in pairs:

First { select a p value to make N in 0,1,2,3} from set p ∈ _{J, p}≤ f (n _CCE)＜N _{J, p+1}With the p value substitution that obtains

$n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}\underset{m=0}{\overset{M_a-1}{\mathrm{\Σ}}}{N}_{a,m}^{\mathrm{ACK}}+(M_j-m-1)\×N_{j,p}+m\×N_{j,p+1}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH},\mathrm{unpair}}^{\left(1\right)}$

In calculate the uplink ACK channel label of continuous dispensing;

Wherein, f (n _CCE) expression control channel unit CCE label n _CCEFunction, N _{J, p}And N _{J, p+1}Expression has distributed interior all physical layer descendings of descending sub frame of DL CC of carrier wave mapping sequence number j to control the uplink ACK channel number that distributes when PDCCH take p and p+1 OFDM symbol, M _aAnd M _jExpression has distributed the descending related subframe collection index element number of the DL CC of carrier wave mapping sequence number a and j,

Be expressed as the uplink ACK channel number of descending sub frame reservation corresponding to descending related subframe collection index m element of the DL CC that has distributed carrier wave mapping sequence number a,

Expression is according to the initial biasing of uplink ACK channel in all physical layer ascending control channel PUCCH form 1/1a/1b channels of at least one DL CC CCE label mapping; Or

For the FDD system, when described at least one DL CC distributing carrier wave mapping sequence number be when DL CC distributes described carrier wave mapping sequence number in pairs in pairs and:

According to $n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}{N}_a^{\mathrm{ACK}}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH}}^{\left(1\right)}$ Calculate the uplink ACK channel label of continuous dispensing; Or

For the FDD system, when described at least one DL CC distributing carrier wave mapping sequence number is only when DL CC distributes described carrier wave mapping sequence number in pairs, for paired DL CC:

According to $n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}{N}_a^{\mathrm{ACK}}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH},\mathrm{unpair}}^{\left(1\right)}$ Calculate the uplink ACK channel label of continuous dispensing;

Wherein, f (n _CCE) expression CCE label n _CCEFunction,

Be expressed as the uplink ACK channel number of the descending sub frame reservation of the DL CC that has distributed carrier wave mapping sequence number a,

The initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels that expression is shone upon according at least one DL CC CCE label,

Be the not initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels of DL CC CCE label mapping in pairs.

The embodiment of the present invention also provides a kind of UE, comprising:

The 3rd distribution module is used for to be at least one member carrier CC assigning ACK according to carrier wave mapping sequence number with the actual number of subframes related with each DL CC;

When described ack channel was the uplink ACK channel, described assigning ACK comprised:

For the TDD system, at least one DL CC distributing carrier wave mapping sequence number is when DL CC distributes described carrier wave mapping sequence number in pairs in pairs and, first { select a p value to make N in 0,1,2,3} from set p ∈ when described _{J, p}≤ f (n _CCE)＜N _{J, p+1}With the p value substitution that obtains

$n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}\underset{m=0}{\overset{M_a-1}{\mathrm{\Σ}}}{N}_{a,m}^{\mathrm{ACK}}+(M_j-m-1)\×N_{j,p}+m\×N_{j,p+1}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH}}^{\left(1\right)}$

In calculate the uplink ACK channel label of continuous dispensing; Or

For the TDD system, when described at least one DL CC distributing carrier wave mapping sequence number is when DL CC distributes described carrier wave mapping sequence number in pairs, for DL CC in pairs:

First { select a p value to make N in 0,1,2,3} from set p ∈ _{J, p}≤ f (n _CCE)＜N _{J, p+1}With the p value substitution that obtains

$n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}\underset{m=0}{\overset{M_a-1}{\mathrm{\Σ}}}{N}_{a,m}^{\mathrm{ACK}}+(M_j-m-1)\×N_{j,p}+m\×N_{j,p+1}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH},\mathrm{unpair}}^{\left(1\right)}$

In calculate the uplink ACK channel label of continuous dispensing;

Wherein, f (n _CCE) expression control channel unit CCE label n _CCEFunction, N _{J, p}And N _{J, p+1}Expression has distributed interior all physical layer descendings of descending sub frame of DL CC of carrier wave mapping sequence number j to control the uplink ACK channel number that distributes when PDCCH take p and p+1 OFDM symbol, M _aAnd M _jExpression has distributed the descending related subframe collection index element number of the DL CC of carrier wave mapping sequence number a and j,

Be expressed as the uplink ACK channel number of descending sub frame reservation corresponding to descending related subframe collection index m element of the DL CC that has distributed carrier wave mapping sequence number a,

Expression is according to the initial biasing of uplink ACK channel in all physical layer ascending control channel PUCCH form 1/1a/1b channels of at least one DL CC CCE label mapping; Or

For the FDD system, when described at least one DL CC distributing carrier wave mapping sequence number be when DL CC distributes described carrier wave mapping sequence number in pairs in pairs and:

According to $n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}{N}_a^{\mathrm{ACK}}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH}}^{\left(1\right)}$ Calculate the uplink ACK channel label of continuous dispensing; Or

For the FDD system, when described at least one DL CC distributing carrier wave mapping sequence number is only when DL CC distributes described carrier wave mapping sequence number in pairs, for paired DL CC:

According to $n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}{N}_a^{\mathrm{ACK}}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH},\mathrm{unpair}}^{\left(1\right)}$ Calculate the uplink ACK channel label of continuous dispensing;

Wherein, f (n _CCE) expression CCE label n _CCEFunction,

Be expressed as the uplink ACK channel number of the descending sub frame reservation of the DL CC that has distributed carrier wave mapping sequence number a,

The initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels that expression is shone upon according at least one DL CC CCE label, Be the not initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels of DL CC CCE label mapping in pairs.

Ack channel distribution method, equipment and system under a kind of carrier aggregation that the embodiment of the present invention provides, can shine upon sequence number and the actual number of subframes related with each CC according to carrier wave, according to a definite sequence, ack channel corresponding to actual use sub-frame allocation for different carrier, because this distribution is continuous, thereby ack channel corresponding to the subframe that there is no actual use also is distributed in together continuously, and Resource Block corresponding to these continuous free ACK channels can dynamically be dispatched better.And can avoid ack channel corresponding to the actual use of discontinuous distribution different carrier in prior art subframe the time, notify respectively initial biasing to the ack channel that each CC is corresponding, can effectively reduce the signaling that the base station issues.

Description of drawings

Fig. 1 is the resource reservation when for a plurality of DL CC, the initial biasing of different uplink ACK channel mappings being set respectively in prior art LTE-A TDD (LTE-A Time Division Duplex, LTE-A time division duplex) system and distributes schematic diagram;

Fig. 2 is that ack channel of the present invention distributes the embodiment schematic diagram;

Fig. 3 is that the present invention is at least one DL CC distributing carrier wave mapping sequence number, the embodiment schematic diagram of reallocation uplink ACK channel;

The uplink ACK channel dispersion that the PDCCH that Fig. 4 issues at least one DL CC distributes is at the A of configuration _ULSchematic diagram in individual UL CC;

The uplink ACK channel that PDCCH that Fig. 5 issues for all DL CC distributes concentrates on the schematic diagram in certain UL CC of configuration;

Fig. 6 is that Fig. 3 embodiment uplink ACK channel resource is reserved and the distribution schematic diagram;

Fig. 7 is the reservation of Fig. 3 embodiment uplink ACK channel resource and distributes another schematic diagram;

Fig. 8 is that the present invention is the embodiment schematic diagram that at least one DL CC reserves the uplink ACK channel;

Fig. 9 is the embodiment schematic diagram of allocation of downlink ack channel of the present invention;

Figure 10 is the structural representation of embodiment of the present invention base station;

Figure 11 is the structural representation of embodiment of the present invention UE.

Embodiment

The embodiment of the present invention provides ack channel distribution method and the equipment under a kind of carrier aggregation, and the below is described in further detail the technical scheme of the embodiment of the present invention.

The inventor is in realizing the process of the embodiment of the present invention, find in the prior art of LTE-A the base station be a plurality of DL CC to distribute the method for uplink ACK channels be that the different initial biasings of ack channel mapping is being set respectively for each CC, and to need the base station be signaling under each initial biasing.Due to ack channel distribute discontinuous, thereby idle ack channel is also discontinuous, is dispatched on transfer of data so be difficult to the resource dynamic that these are idle; And increased the quantity of the lower signaling of base station.Initial being biased to of uplink ACK channel mapping that arrange of i DL CC for example

Be expressed as CCE (Control Channel Element, control channel unit) the label n of i DL CC _CCETo uplink ACK channel label

The uplink ACK channel number that mapping is reserved.Adopt n in similar LTE system in each member carrier _CCEArrive

The mode of mapping.

N in LTE TDD _CCEArrive

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 as a plurality of descending sub frames at a sub-frame of uplink take solution distributes respectively the uplink ACK channel.At descending related subframe collection index K:{k ₀, k ₁..., k _M-1In, in set, to be illustrated in this sub-frame of uplink be that the PDCCH that M descending sub frame issues distributes respectively the uplink ACK channel to the number M of element; 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).Take ratio of uplink subframe to downlink subframe 3 and subframe 2 as example, at the ACK/NACK of M=3 subframe of this sub-frame of uplink internal feedback, in set K, to have indicated respectively these 3 subframes be respectively the 5th, 6 and 1 subframe of previous radio frames to the numerical value " 7,6,11 " of element.

Descending related subframe collection index K:{k under each ratio of uplink subframe to downlink subframe of table 1 LTE TDD ₀, _k1 ..., k _M-1}

For with descending related subframe collection index K in element k _mCertain PDCCH that dispatches in corresponding descending sub frame or special subframe supposes that its initial CCE label that takies is n _CCE, the uplink ACK channel label of establishing corresponding distribution is

First { select a p value to make N in 0,1,2,3} from set p ∈ _p≤ n _CCE＜N _p+1, then with the p value substitution that obtains

$n_{\mathrm{PUCCH}}^{\left(1\right)}=(M-m-1)\×N_p+m\×N_{p+1}+n_{\mathrm{CCE}}+N_{\mathrm{PUCCH}}^{\left(1\right)}$

In calculate the uplink ACK channel label of distribution, wherein Expression initial biasing in all PUCCH (Physical Uplink Control CHannel, physical layer ascending control channel) form 1/1a/1b channel according to the uplink ACK channel of CCE label mapping,

Be the downlink system bandwidth that represents with resource block number, Be the continuous number of sub carrier wave that takies on frequency domain of a Resource Block,

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, and in descending related subframe collection index K, element number is different in different sub-frame of uplink, and arranging the initial biasing of uplink ACK channel mapping this moment

The time, arrange according to the greatest member number in 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 in 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.When in the descending related subframe collection index K of a sub-frame of uplink, element number is less, for example in the subframe 3 and subframe 4 in ratio of uplink subframe to downlink subframe 3, the uplink ACK channel resource of reserving can exceed actual demand, and Resource Block corresponding to these idle uplink ACK channels can dynamically be scheduled for the PUSCH transmission in the LTETDD system.

Yet with n in the LTE system _CCEArrive

After the mode of mapping was used in 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 the LTE-A system when for each the DL CC in a plurality of DL CC of identical UL CC mapping uplink ACK channel, the different initial biasings of uplink ACK channel mapping being set respectively, also will according to descending related subframe collection index K corresponding to each DLCC 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 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 as shown in grey in Fig. 1 and black fritter, also have and 1 reservation uplink ACK channel idle that subframe is corresponding, as shown in white fritter in Fig. 1, note each fritter corresponding the continuous uplink ACK channel of a plurality of labels.As can see from Figure 1, for white fritter corresponding to idle uplink ACK channel in the uplink ACK channel of each DL CC reservation is discontinuously arranged, these discontinuous white fritters can't be utilized when transfer of data, so formed waste.

The embodiment of the present invention can be shone upon sequence number and the actual number of subframes related with each CC according to carrier wave, according to a definite sequence, ack channel corresponding to actual use sub-frame allocation for different carrier, because this distribution is continuous, thereby ack channel corresponding to the subframe that there is no actual use also is distributed in together continuously, and Resource Block corresponding to these continuous free ACK channels can dynamically be dispatched better.And can avoid ack channel corresponding to the actual use of discontinuous distribution different carrier in prior art subframe the time, notify respectively initial biasing to the ack channel that each carrier wave is corresponding, can effectively reduce the signaling that the base station issues.

Fig. 2 is that ack channel of the present invention distributes the embodiment schematic diagram.The present embodiment comprises:

Step 201, at least one CC distributing carrier wave mapping sequence number;

Step 202 comes to be at least one CC assigning ACK according to above-mentioned carrier wave mapping sequence number with the actual number of subframes related with each CC.

The present embodiment is applicable in LTE-A TDD and LTE-A FDD (LTE-A Frequency DivisionDuplex, LTE-A Frequency Division Duplexing (FDD)) system, and the base station is in the process of CC assigning ACK.In the present embodiment, the executive agent of step 201 and step 202 is base stations, and further the executive agent of step 201 can be the first distribution module, and the executive agent of step 202 can be base station the second distribution module.

If above-mentioned a plurality of CC is a plurality of DL CC, correspondingly above-mentioned ack channel is the uplink ACK channel; If above-mentioned a plurality of CC is a plurality of UL CC, correspondingly above-mentioned ack channel is descending ack channel.The base station first was divided into CC in pairs with azygous before assigning ACK, then was their distributing carrier wave mapping sequence number, wherein can be chosen as in pairs and in pairs CC distribute above-mentioned carrier wave mapping sequence number; Perhaps only distribute above-mentioned carrier wave mapping sequence number for not paired CC.According to above-mentioned carrier wave mapping sequence number, with the actual number of subframes related with each CC, by computing formula, obtain the ack channel label that will distribute.For the TDD system, the above-mentioned actual number of subframes related with each CC is to arrange and the pre-defined definite number of HARQ timing relationship according to the member carrier ratio of uplink subframe to downlink subframe; For the FDD system, the above-mentioned actual number of subframes related with each CC is 1.Below by three embodiment, each step is described in detail.

The embodiment of the present invention can be shone upon sequence number and the actual number of subframes related with each CC according to carrier wave, according to a definite sequence, ack channel corresponding to actual use sub-frame allocation for different carrier, because this distribution is continuous, thereby ack channel corresponding to the subframe that there is no actual use also is distributed in together continuously, and Resource Block corresponding to these continuous free ACK channels can dynamically be dispatched better.And can avoid ack channel corresponding to the actual use of discontinuous distribution different carrier in prior art subframe the time, notify respectively initial biasing to the ack channel that each carrier wave is corresponding, can effectively reduce the signaling that the base station issues.

Fig. 3 is that the present invention is at least one DL CC distributing carrier wave mapping sequence number, the embodiment schematic diagram of reallocation uplink ACK channel, and the present embodiment comprises:

Step 301, base station are at least one DL CC distributing carrier wave mapping sequence number;

Step 302, the base station is distributed the uplink ACK channel at least one DL CC with the actual number of subframes related with each DL CC according to above-mentioned carrier wave mapping sequence number.

The present embodiment is applicable in LTE-ATDD and LTE-A FDD system, and the base station is that DL CC distributes in the process of uplink ACK channel.The executive agent of step 301 and step 302 is base stations, and further the executive agent of step 301 can be base station the first distribution module, and the executive agent of step 302 can be base station the second distribution module.

The base station first was divided into DL CC in pairs with azygous before distributing the uplink ACK channel, then shone upon sequence number for their distributing carrier wave, according to above-mentioned carrier wave mapping sequence number, with the actual number of subframes related with each CC, by computing formula, obtain the uplink ACK channel that will distribute

The below is described in detail each step.

In the LTE-A system, LTE UE can only access a UL CC and a DL CC simultaneously, and LTE-AUE can access A simultaneously _ULIndividual UL CC and A _DLIndividual DL CC, wherein A _ULAnd A _DLAll 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-A UE 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. 4 example, wherein DL CC 1, DL CC 2, DL CC 3, UL CC1 and DL CC 2 have been configured for some LTE-A UE, the PDCCH that issues at DL CC1 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 channels 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. 5 example, wherein configured DL CC 1, DL CC 2, DL CC 3, UL CC 1 and DL 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 channels.Noting, in the description to example, is from the angle of a LTE-A UE.From the angle of system, the PDCCH place DL CC of each LTE-A UE and uplink ACK channel place UL CC corresponding relation can be identical, also can be different.

Angle from system, to a UL CC, as long as have at least one LTE-A UE and/or LTEUE to distribute corresponding uplink ACK channel at the PDCCH that DL CCi issues at this UL CC, will be that the PDCCH that DL CCi issues reserves and distribution uplink ACK channel at this UL CC so.

For convenience of description, in embodiments of the present invention, if a UL CC and a DL CC can be accessed simultaneously by a LTE UE, be called one and form member carrier, and will be called each other the other side's paired member carrier; Otherwise be called one group of paired member carrier, and will be called each other the other side's paired member carrier.In Fig. 4 and Fig. 5, UL CC1 and DL CC1, UL CC2 and DL CC2 are exactly such two to form member carrier; A UL CC and a DL CC in all the other situations consist of one group of not paired member carrier.

Working as the base station in step 301 will be A in a UL CC ₀(A ₀When 〉=1) PDCCH that issues of individual DL CC distributes the uplink ACK channel, establish this A ₀Individual DL CC is

A kind of method of distributing carrier wave mapping sequence number is to be A ₀Individual DL CC distributing carrier wave mapping sequence number is wherein paired member carrier distributing carrier wave mapping sequence number 0, can also be chosen as the not paired DL CC with maximum bandwidth and distribute maximum carrier wave mapping sequence number; The method of another kind of distributing carrier wave mapping sequence number is only to be A ₀Not paired DL CC distributing carrier wave mapping sequence number in individual DLCC.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.When being A ₀When individual DL CC distributes respectively different carrier mapping sequence number, can regard a set as

To set { 0 ..., A ₀The mapping one by one of-1}; When there being and only having DL CCi ₀Be paired member carrier, only be A ₀When the not paired DL CC in individual DL CC distributes respectively different carrier mapping sequence number, can regard set as

To the set 0 ..., A ₀The mapping one by one of-2}.

After distributing carrier wave mapping sequence number, if the carrier wave mapping sequence number of distributing need to be notified to LTE-AUE, the base station can be notified in the following way:

Mode one, the base station is in the carrier wave mapping sequence number of the paired DL CC broadcast announcement distribution of UL CC.For example, the base station is that DL CC1,2,3 and 4 distributes the uplink ACK channel at UL CC2, and only having DL CC2 is the paired member carrier of UL CC2, be that each DL CC is when distributing a different carrier wave mapping sequence number, can notify respectively carrier wave mapping sequence number 3,0,1 and 2 for DL CC1,2,3 and 4, perhaps for DL CC1,3 and 4 notifies respectively carrier wave mapping sequence number 3,1 and 2, DL CC2 is the automatic distributing carrier wave mapping of paired member carrier sequence number 0; When only distributing a different carrier mapping sequence number for not paired DL CC, can notify respectively carrier wave mapping sequence number 0,1 and 2 for DL CC1,3 and 4.

Mode two, the carrier wave that shines upon distribution according to preset rules a plurality of DL CC labels 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.For example, the base station is that DL CC1,2,3 and 4 distributes the uplink ACK channel at UL CC2, wherein only having DL CC2 is the paired member carrier of UL CC2, be that each DL CC is when distributing a different carrier wave mapping sequence number, can be initial mapping one by one according to paired DL CC, be DLCC1,2,3 and 4 difference distributing carrier wave mapping sequence numbers 3,0,1 and 2; Only when DL CC distributes a different carrier mapping sequence number in pairs, can according to not in pairs the ascending order of DL CC label to the mapping one by one of carrier wave mapping sequence number, be DL CC1,3 and 4 respectively distributing carrier wave shine upon sequence numbers 0,1 and 2.

Mode three, to LTE-AUE, the base station is notified the carrier wave mapping sequence number of the DL CC that configures to this LTE-AUE at least by the proprietary signaling of UE.For example, the base station is that DL CC1,2,3 and 4 distributes the uplink ACK channel at UL CC2, wherein only having DL CC2 is the paired member carrier of UL CC2, and configure the PDCCH that certain LTE-A UEDL CC2 and 4 issues and distribute corresponding uplink ACK channel at UL CC2, be that each DL CC is when distributing a different carrier wave mapping sequence number, can be that DL CC2 and 4 notifies respectively carrier wave mapping sequence number 0 and 2 by the proprietary signaling of UE, perhaps be DLCC4 notice carrier wave mapping sequence number 2, DL CC2 is the automatic distributing carrier wave mapping of paired member carrier sequence number 0; When only distributing a different carrier mapping sequence number for not paired DL CC, can be DL CC4 notice carrier wave mapping sequence number 2 by the proprietary signaling of UE.

In step 302, when the base station was distributed the uplink ACK channel for a plurality of DLCC with the actual number of subframes related with each DL CC according to above-mentioned carrier wave mapping sequence number, the simplest a kind of implementation was to distribute successively continuous uplink ACK channel for a plurality of DL CC from small to large according to carrier wave mapping sequence number.

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 that a plurality of DL CC define respectively descending related subframe collection index at UL CC.When ratio of uplink subframe to downlink subframe arranges when identical, the descending related subframe collection index that recommend adoption is 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.In the DL CC that has distributed carrier wave mapping sequence number j, for m element k of descending related subframe collection index _mIn corresponding descending sub frame, label is n _CCECCE, when adopting the uplink ACK channel allocation principle of LTE TDD in each carrier wave, distribute the detailed process of uplink ACK channel as follows:

(1) first { select a p value to make N in 0,1,2,3} from set p ∈ _{J, p}≤ f (n _CCE)＜N _{J, p+1}

(2) the uplink ACK channel label of establishing distribution is With the p value substitution that obtains

$n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}\underset{m=0}{\overset{M_a-1}{\mathrm{\Σ}}}{N}_{a,m}^{\mathrm{ACK}}+(M_j-m-1)\×N_{j,p}+m\×N_{j,p+1}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH}}^{\left(1\right)}$

In calculate the uplink ACK channel label of distribution.

Wherein, f (n _CCE) expression CCE label n _CCEFunction, N _{J, p}And N _{J, p+1}The uplink ACK channel number that expression has distributed when having distributed interior all PDCCH of descending sub frame of DL CC of carrier wave mapping sequence number j to take p and p+1 OFDM symbol, M _aAnd M _jExpression has distributed the descending related subframe collection index element number of the DL CC of carrier wave mapping sequence number a and j,

Be expressed as the uplink ACK channel number of descending sub frame reservation corresponding to descending related subframe collection index m element of the DL CC that has distributed carrier wave mapping sequence number a,

Expression is according to the initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels of a plurality of DL CC CCE label mappings.

Further, label is n _CCECCE be the shared CCE of PDCCH.Can also be the initial CCE that PDCCH takies when PDCCH takies a plurality of CCE.

To LTE-A FDD system, 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 j, be n for label in the descending sub frame of correspondence _CCECCE, when adopting the uplink ACK channel allocation principle of LTE FDD in each carrier wave, distribute the detailed process of uplink ACK channel as follows:

If the uplink ACK channel label that distributes is

According to $n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}{N}_a^{\mathrm{ACK}}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH}}^{\left(1\right)}$ Calculate the uplink ACK channel label of distribution.

Wherein, f (n _CCE) expression CCE label n _CCEFunction,

Be expressed as the uplink ACK channel number of the descending sub frame reservation of the DLCC that has distributed carrier wave mapping sequence number a,

Expression is according to the initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels of a plurality of DLCC CCE label mappings.

Further, label is n _CCECCE be the shared CCE of PDCCH.Can also be the initial CCE that PDCCH takies when PDCCH takies a plurality of CCE.

Be A ₀During individual DL CC difference distributing carrier wave mapping sequence number, common A ₀There is and only has a paired DL CC in individual DL CC.DL CC the inside may issue PDCCH and distribute the uplink ACK channel at above-mentioned UL CC for LTE UE in pairs, institute thinks paired DL CC distributing carrier wave mapping sequence number 0, and reuse the uplink ACK channel allocation mechanism of LTE system, to keep the LTE-A system to the backwards compatibility of LTE system.To LTE-A TDD system, f (n _CCE) and N _{J, p}Can be specially

f(n _CCE)=n _CCE, Perhaps

Other '

Perhaps

To LTE-A FDD system, f (n _CCE) can be specially

f(n _CCE)=n _CCE, perhaps

Perhaps

Wherein,

Expression has distributed the bandwidth that represents with resource block number of the DL CC of carrier wave mapping sequence number j,

Be base station broadcast notice distribution the resource compressibility factor of DL CC of carrier wave mapping sequence number j,

Represent to round up computing,

Represent downward rounding operation, min{x, y} represent to get smaller's computing in x and y, and max{x, y} represent to get the greater computing in x and y, and mod{x, y} represent that x is to the y modulo operation.

Be only A ₀When the paired DL CC difference distributing carrier wave in individual DL CC is shone upon sequence number, common A ₀There is and only has a paired DL CC in individual DL CC.In pairs DL CC the inside may issue PDCCH and distribute the uplink ACK channel at above-mentioned UL CC for LTE UE, need to reuse the uplink ACK channel allocation mechanism of LTE system fully, to keep the LTE-A system to the backwards compatibility of LTE system.The detailed process of aforementioned distribution uplink ACK channel only has been used for distributing the not paired DL CC of carrier wave mapping sequence number,

The not initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels of DL CC CCE label mapping in pairs that be of base station broadcast notice.To LTE-A TDD system, f (n _CCE) and N _{J, p}Can be specially

f(n _CCE)=n _CCE, Perhaps

Perhaps

To LTE-A FDD system, f (n _CCE) can be specially

f(n _CCE)=n _CCE, perhaps

Perhaps

Wherein,

Expression has distributed the bandwidth that represents with resource block number of the DL CC of carrier wave mapping sequence number j, Be base station broadcast notice distribution the resource compressibility factor of DL CC of carrier wave mapping sequence number j,

Represent to round up computing, Represent downward rounding operation, min{x, y} represent to get smaller's computing in x and y, and max{x, y} represent to get the greater computing in x and y, and mod{x, y} represent that x is to the y modulo operation.

Wherein, when the uplink ACK channel allocation was discussed in the above, being all the uplink ACK channel allocation principle that adopts the LTE system in each member carrier described as example.To LTE UE, the uplink ACK channel of distribution is always on the paired UL CC of the DL CC that issues PDCCH.So the uplink ACK channel allocation of the PDCCH of the LTE-A UE that not paired DL CC issues can not adopt the uplink ACK channel allocation principle of LTE system, still can shine upon sequence number according to carrier wave and distribute successively continuous uplink ACK channel for a plurality of DL CC from small to large this moment.

The embodiment of the present invention proposes to be a plurality of DL CC distributing carrier wave mapping sequence numbers at identical UL CC mapping uplink ACK channel, come to be a plurality of DL CC continuous dispensing uplink ACK channels according to carrier wave mapping sequence number with the actual number of subframes related with each DL CC, thereby uplink ACK channel corresponding to the subframe that there is no actual use also is distributed in together continuously, the Resource Block dynamic dispatching PUSCH transmission better that these continuous idle uplink ACK channels are corresponding.In LTE-A TDD system, according to the example of Fig. 1, suppose that DL CC3 is paired DL CC, when be DL CC1,2 and 3 respectively distributing carrier wave mapping sequence numbers 1,2 and 0 the time, the uplink ACK channel that distributes for each DL CC is as shown in Figure 6.When being only paired DL CC1 and 2 difference distributing carrier wave mapping sequence numbers 0 and 1, notify respectively for uplink ACK channel allocation paired and not paired DL CC and shine upon initial biasing With

The uplink ACK channel that distributes for each DL CC as shown in Figure 7.Can see from Fig. 6 and Fig. 7, the embodiment of the present invention can the idle uplink ACK block of channels that DL CC is corresponding be organized into continuous distribution.

Simultaneously, the embodiment of the present invention avoids the base station to notify an initial biasing of uplink ACK channel mapping for each DL CC, only need to notify a common initial biasing of uplink ACK channel mapping or for notifying respectively an initial biasing of uplink ACK channel mapping with paired DL CC in pairs, can effectively reduce the signaling that the base station issues.

The method that provides in the present embodiment is provided in LTE-A FDD system, can be kept the same design of LTE-ATDD and FDD system.

Fig. 8 is that the present invention is the embodiment schematic diagram that at least one DL CC reserves the uplink ACK channel.

The present embodiment comprises:

Step 801, base station are at least one DL CC distributing carrier wave mapping sequence number;

Step 802, base station are that at least one DL CC reserves the uplink ACK channel according to the maximum number of subframes related with DL CC;

Step 803, the base station is distributed the uplink ACK channel at least one DL CC with the actual number of subframes related with each DL CC according to above-mentioned carrier wave mapping sequence number.

The present embodiment is applicable in LTE-A TDD and LTE-A FDD system, and the base station is that DL CC distributes in the process of uplink ACK channel.In the present embodiment, the executive agent of step 801, step 802 and step 803 is base stations, further the executive agent of step 801 can be the first distribution module, the executive agent of step 802 can be that module is reserved in base station first, and the executive agent of step 803 can be base station the second distribution module.

The base station first was divided into DL CC in pairs with azygous before distributing the uplink ACK channel, was their distributing carrier wave mapping sequence number; Be that a plurality of DLCC reserve the uplink ACK channel according to the maximum number of subframes related with DL CC again; According to above-mentioned carrier wave mapping sequence number, with the actual number of subframes related with each CC, by computing formula, obtain the uplink ACK channel that will distribute The below is described in detail each step.

The method of step 801 distributing carrier wave mapping sequence number is identical with step 301, here repeats no more.

Be that a plurality of DL CC reserve the uplink ACK channel according to the maximum number of subframes related with DL CC in step 802.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 that a plurality of DLCC define respectively descending related subframe collection index at UL CC.When ratio of uplink subframe to downlink subframe arranges when identical, the descending related subframe collection index that recommend adoption is identical with LTE TDD system.A kind of simple resource reservation mode is to reserve the uplink ACK channel for a plurality of DL CC according to the greatest member number in the descending related subframe collection index of each DLCC, namely related with DL CC maximum number of subframes.To LTE-A FDD 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 for a plurality of DL CC shines upon according to a plurality of DL CC CCE labels by expression Notify UE.Be A ₀During individual DL CC difference distributing carrier wave mapping sequence number, DL CC is with DL CC use is not identical in pairs in pairs

And be only A ₀When the paired DL CC difference distributing carrier wave in individual DL CC was shone upon sequence number, DL CC was with DL CC use is different in pairs in pairs

Be made as respectively

With

This moment is according to the initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels of a plurality of DL CC CCE label mappings

Refer to

The base station refers to that for a plurality of DL CC distribute the uplink ACK channel base station is that the DL CC that has reserved ack channel distributes respectively the uplink ACK channel with the actual number of subframes related with each DL CC according to above-mentioned carrier wave mapping sequence number in step 803, concrete distribution method is identical with step 302, namely the DL CC that has reserved ack channel is distributed a cover ack channel according to step 302.

To a UL CC, the PDCCH that issues for not paired DL CC distributes the uplink ACK channel only may betide LTE-A UE, so this part resource is distributed the problem that can not consider LTE UE backwards compatibility.In order to reduce the resource overhead of uplink ACK channel, in pairs the uplink ACK channel resource reserved of DL CC can reserve according to maximum CCE number as the LTE system, but introduce some expense compression mechanisms.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 Another kind of expense compression mechanism is that the base station is extensively known the resource compressibility factor of using when reserving the uplink ACK channel for not paired DL CC all, for example

Wherein

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 j calculates according to the resource compressibility factor of notice, for example to LTE-A TDD system

To LTE-A FDD system

P wherein _maxThe maximum orthogonality frequency division multiplexing symbol number that in the expression subframe, PDCCH takies.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.

The embodiment of the present invention proposes to be a plurality of DL CC distributing carrier wave mapping sequence numbers at identical UL CC mapping uplink ACK channel, be that a plurality of DL CC reserve the uplink ACK channel according to the maximum number of subframes related with DL CC, come to be a plurality of DL CC continuous dispensing uplink ACK channels according to carrier wave mapping sequence number with the actual number of subframes related with each DL CC.The embodiment of the present invention can the idle uplink ACK block of channels that DL CC is corresponding be organized into continuous distribution, thereby can be supported in better dynamic dispatching PUSCH transmission on the Resource Block corresponding with these idle uplink ACK block of channels.

Fig. 9 is the embodiment schematic diagram of allocation of downlink ack channel of the present invention.The present embodiment comprises:

Step 901, base station are at least one UL CC distributing carrier wave mapping sequence number;

Step 902, the base station comes to be at least one UL CC allocation of downlink ack channel according to above-mentioned carrier wave mapping sequence number with the actual number of subframes related with each UL CC.

The present embodiment is applicable in LTE-A TDD and LTE-A FDD system, and the base station is in the process of UL CC allocation of downlink ack channel.The base station first was divided into UL CC in pairs with azygous before the allocation of downlink ack channel, then was their distributing carrier wave mapping sequence number, according to above-mentioned carrier wave mapping sequence number, with the actual number of subframes related with each UL CC, by computing formula, obtain the uplink ACK channel that will distribute

With

The below is described in detail each step.

To LTE-A UE, as the UL CC number A of configuration _UL＞1 o'clock according to the corresponding relation of LTE-A UE PUSCH place UL CC and descending ack channel place DL CC, might be the PUSCH allocation of downlink ack channel that transmits at a plurality of UL CC at identical DL CC.

From the angle of system, to a DL CC, as long as have at least one LTE-A UE and/or LTEUE to distribute corresponding descending ack channel at the PUSCH of UL CCi transmission at this DL CC, will be UL CC at this DL CC so _iThe PUSCH of transmission reserves and the allocation of downlink ack channel.

For convenience of description, in embodiments of the present invention, if a UL CC and a DL CC can be accessed simultaneously by a LTE UE, be called one and form member carrier, and will be called each other the other side's paired member carrier; Otherwise be called one group of paired member carrier, and will be called each other the other side's paired member carrier.

To a DL CC, be A in step 901 ₁(A ₁〉=1) during the PUSCH allocation of downlink ack channel of individual UL CC transmission, establish this A ₁Individual UL CC is A kind of method of distributing carrier wave mapping sequence number is to be A ₁Individual UL CC distributing carrier wave mapping sequence number is wherein paired UL CC distributing carrier wave mapping sequence number 0; The method of another kind of distributing carrier wave mapping sequence number is only to be A ₁Not paired ULCC distributing carrier wave mapping sequence number in individual UL CC.Consider to be that the descending ack channel that two UL CC distribute same carrier wave mapping sequence number can cause distributing is in same area, may have the descending ack channel conflict between UL CC, be recommended as different UL CC and distribute different carrier wave mapping sequence numbers.When being A ₁When individual UL CC distributes respectively different carrier mapping sequence number, can regard a set as

To the set 0 ..., A ₁The mapping one by one of-1}; When there being and only having UL CCi ₀Be paired member carrier, only be A ₁When the not paired ULCC in individual UL CC distributes respectively different carrier mapping sequence number, can regard set as

To the set 0 ..., A ₁The mapping one by one of-2}.

After distributing carrier wave mapping sequence number, if the carrier wave mapping sequence number of distributing need to be notified to LTE-AUE, the base station can be notified by three kinds of modes in Fig. 3 embodiment.

In step 902, when coming for a plurality of UL CC allocation of downlink ack channel according to carrier wave mapping sequence number with the actual number of subframes related with each UL CC, the simplest a kind of implementation is to distribute successively continuous descending ack channel for a plurality of UL CC from small to large according to carrier wave mapping sequence number.

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 that a plurality of UL CC define respectively up related number of sub frames concordance list at DL CC.When ratio of uplink subframe to downlink subframe arranges when identical, the up related number of sub frames concordance list that recommend adoption is identical with LTE TDD system, as shown in table 2.In table 2, numerical value 2,1 and 0 represents that respectively this descending sub frame is the corresponding descending ack channel of PUSCH distribution of 2,1 and 0 sub-frame of uplink transmission.The above-mentioned actual number of subframes related with each UL CC is the corresponding number of subframes value that provides in up related number of sub frames concordance list for the current descending sub frame definition of DL CC.

Up related number of sub frames concordance list under each ratio of uplink subframe to downlink subframe of table 2 LTE TDD

To LTE-A FDD system, the above-mentioned actual number of subframes related with each UL CC is 1.

To having distributed the UL CC of carrier wave mapping sequence number j, establishing its actual number of subframes related with DL CC is M _j, and descending ack channel by label to (

) identify, the detailed process of allocation of downlink ack channel is as follows:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}{M}_a{N}_{\mathrm{PHICH},a}^{\mathrm{group}}+(I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{lowest}\_\mathrm{index}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH},j}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH},j}^{\mathrm{group}},$

Wherein,

The Physical Resource Block label that the expression PUSCH corresponding with the descending ack channel that distributes takies, n _DMRS0, I is indicated or directly be set to demodulation pilot frequency circular shift information by the corresponding PUSCH that receives recently when not indicating _PHICHWhen having distributed the corresponding ratio of uplink subframe to downlink subframe 0 of UL CC of carrier wave mapping sequence number j and PUSCH to be positioned at subframe 4 or subframe 9 in the TDD system value be 1, other the time value be 0,

Value is 4 in short Cyclic Prefix subframe structure, value is 2 in the long loop prefix subframe structure,

The descending ack channel group number of reserving for the subframe of the UL CC that distributed carrier wave mapping sequence number j in expression DL CC.

Further, whether the Physical Resource Block number that takies as PUSCH adopts MIMO technique and corresponding ACK/NACK information feedback scheme according to PUSCH greater than 1 the time, The label of one or more label minimal physical Resource Block that expression PUSCH takies.

Be A ₁During individual UL CC difference distributing carrier wave mapping sequence number, common A ₁There is and only has a paired UL CC in individual ULCC.UL CC the inside may be for LTE UE transmission PUSCH and at above-mentioned DLCC allocation of downlink ack channel in pairs, institute thinks paired UL CC distributing carrier wave mapping sequence number 0, and reuse the uplink ACK channel allocation mechanism of LTE system, to keep the LTE-A system to the backwards compatibility of LTE system.This moment is according to the first in pairs UL CC descending ack channel Unified number of the order of ULCC for reserving in pairs or else.

Can be specially in short Cyclic Prefix subframe structure

Can be specially in the long loop prefix subframe structure

Wherein

That the base station is a parameter of having distributed the UL CC broadcast announcement of mapping sequence number j at above-mentioned DL CC, N _RBThe bandwidth of the above-mentioned DLCC that represents with resource block number when j=0, the bandwidth of the UL CC of the mapping sequence number j that in j＞0 o'clock is the distribution that represents with resource block number.

Be only A ₁When the paired UL CC difference distributing carrier wave in individual UL CC is shone upon sequence number, common A ₁There is and only has a paired UL CC in individual UL CC.In pairs UL CC the inside may be for LTEUE transmits PUSCH and at above-mentioned DL CC allocation of downlink ack channel, need to reuse the descending ack channel distribution mechanism of LTE system fully, to keep the LTE-A system to the backwards compatibility of LTE system.The detailed process of aforementioned allocation of downlink ack channel only has been used for distributing the not paired UL CC of carrier wave mapping sequence number, to be the descending ack channel Unified number of paired UL CC reservation, and will separate for the descending ack channel of paired UL CC and paired UL CC reservation and number. Can be specially in short Cyclic Prefix subframe structure

Can be specially in the long loop prefix subframe structure

Wherein That the base station is a parameter of having distributed the UL CC broadcast announcement of mapping sequence number j at above-mentioned DL CC, N _RBThe bandwidth of the UL CC of the mapping sequence number j that is the distribution that represents with resource block number.

Wherein,

Can be that the base station is an identical numerical value of the common broadcast announcement of a plurality of UL CC, can be also that the base station is a plurality of UL CC identical or different numerical value of broadcast announcement respectively.

The embodiment of the present invention can allow the uplink ACK channel allocation distribute with descending ack channel and adopt identical principle, can simplify system.Also avoid the base station to notify the initial biasing of a descending ack channel mapping for the descending ack channel distribution of each UL CC, can effectively reduce the signaling that the base station issues.

Figure 10 is the structural representation of embodiment of the present invention base station, and the base station in the present embodiment comprises:

The first distribution module 1001 is used at least one CC distributing carrier wave mapping sequence number;

The second distribution module 1002 is used for to be at least one CC assigning ACK according to above-mentioned carrier wave mapping sequence number with the actual number of subframes related with each DL CC.

If the base station sends carrier wave mapping sequence number or CC label, the base station can also comprise:

The first sending module 1003 is used for receiving the carrier wave mapping sequence number of the first module assigns, and sends carrier wave mapping sequence number or CC label;

The base station can also comprise:

First reserves module 1004, 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, and the result that will reserve sends to the second distribution module.

The embodiment of the present invention is used for the embodiment shown in Fig. 2,3,8,9, here repeats no more.

Figure 11 is the structural representation of embodiment of the present invention UE, and the UE in the present embodiment comprises:

The 3rd distribution module 1101 is used for to be at least one CC assigning ACK according to above-mentioned carrier wave mapping sequence number with the actual number of subframes related with each DL CC.

If the base station sends carrier wave mapping sequence number or CC label, UE also comprises:

The first receiver module 1102 is used for reception carrier mapping sequence number or CC label;

If what the first receiver module received is the CC label, also comprise:

The first mapping block 1103 is used for shining upon according to the CC label that receives according to preset rules the carrier wave mapping sequence number of distribution.

The embodiment of the present invention is used for the embodiment shown in Fig. 2,3,8,9, here repeats 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 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 in embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.

The invention described above embodiment sequence number does not represent the quality of embodiment just to description.

Above disclosed be only several specific embodiment of the present invention, still, the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.

Claims (17)

1. the ack channel distribution method under a carrier aggregation, is characterized in that, comprising:

Be at least one member carrier CC distributing carrier wave mapping sequence number;

Come to be at least one CC assigning ACK according to described carrier wave mapping sequence number with the actual number of subframes related with each CC;

When described ack channel was the uplink ACK channel, described assigning ACK comprised:

For the TDD system, at least one DL CC distributing carrier wave mapping sequence number is when DL CC distributes described carrier wave mapping sequence number in pairs in pairs and, first { select a p value to make N in 0,1,2,3} from set p ∈ when described _{J, p}≤ f (n _CCE)＜N _{J, p+1}With the p value substitution that obtains

$n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}\underset{m=0}{\overset{M_a-1}{\mathrm{\Σ}}}{N}_{a,m}^{\mathrm{ACK}}+(M_j-m-1)\×N_{j,p}+m\×N_{j,p+1}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH}}^{\left(1\right)}$

In calculate the uplink ACK channel label of continuous dispensing; Or

For the TDD system, when described at least one DL CC distributing carrier wave mapping sequence number is when DL CC distributes described carrier wave mapping sequence number in pairs, for DL CC in pairs:

First { select a p value to make N in 0,1,2,3} from set p ∈ _{J, p}≤ f (n _CCE)＜N _{J, p+1}With the p value substitution that obtains

$n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}\underset{m=0}{\overset{M_a-1}{\mathrm{\Σ}}}{N}_{a,m}^{\mathrm{ACK}}+(M_j-m-1)\×N_{j,p}+m\×N_{j,p+1}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH},\mathrm{unpair}}^{\left(1\right)}$

In calculate the uplink ACK channel label of continuous dispensing;

Wherein, f (n _CCE) expression control channel unit CCE label n _CCEFunction, N _{J, p}And N _{J, p+1}Expression has distributed interior all physical layer descendings of descending sub frame of DL CC of carrier wave mapping sequence number j to control the uplink ACK channel number that distributes when PDCCH take p and p+1 OFDM symbol, M _aAnd M _jExpression has distributed the descending related subframe collection index element number of the DL CC of carrier wave mapping sequence number a and j,

Be expressed as the uplink ACK channel number of descending sub frame reservation corresponding to descending related subframe collection index m element of the DL CC that has distributed carrier wave mapping sequence number a,

Expression is according to the initial biasing of uplink ACK channel in all physical layer ascending control channel PUCCH form 1/1a/1b channels of at least one DL CC CCE label mapping; Or

For the FDD system, when described at least one DL CC distributing carrier wave mapping sequence number be when DL CC distributes described carrier wave mapping sequence number in pairs in pairs and:

According to $n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}{N}_a^{\mathrm{ACK}}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH}}^{\left(1\right)}$ Calculate the uplink ACK channel label of continuous dispensing; Or

For the FDD system, when described at least one DL CC distributing carrier wave mapping sequence number is only when DL CC distributes described carrier wave mapping sequence number in pairs, for paired DL CC:

According to $n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}{N}_a^{\mathrm{ACK}}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH},\mathrm{unpair}}^{\left(1\right)}$ Calculate the uplink ACK channel label of continuous dispensing;

Wherein, f (n _CCE) expression CCE label n _CCEFunction, Be expressed as the uplink ACK channel number of the descending sub frame reservation of the DL CC that has distributed carrier wave mapping sequence number a, The initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels that expression is shone upon according at least one DL CC CCE label,

Be the not initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels of DL CC CCE label mapping in pairs;

When described ack channel was descending ack channel, described assigning ACK comprised:

When described at least one UL CC distributing carrier wave mapping sequence number be when UL CC distributes described carrier wave mapping sequence number in pairs in pairs and:

According to

$n_{\mathrm{PHICH}}^{\mathrm{group}}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}{M}_a{N}_{\mathrm{PHICH},a}^{\mathrm{group}}+(I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{lowest}\_\mathrm{index}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH},j}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH},j}^{\mathrm{group}},$

Calculate the descending ack channel label of distribution; Or

When described at least one UL CC distributing carrier wave mapping sequence number is only when UL CC distributes described carrier wave mapping sequence number in pairs, for paired UL CC:

According to

$n_{\mathrm{PHICH}}^{\mathrm{group}}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}{M}_a{N}_{\mathrm{PHICH},a}^{\mathrm{group}}+(I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{lowest}\_\mathrm{index}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH},j}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH},j}^{\mathrm{group}},$

Calculate the descending ack channel label of distribution;

Wherein, The Physical Resource Block label that the expression physical layer Uplink Shared Channel PUSCH corresponding with the descending ack channel that distributes takies, n _DMRS0, I is indicated or directly be set to demodulation pilot frequency circular shift information by the corresponding PUSCH that receives recently when not indicating _PHICHWhen having distributed the corresponding ratio of uplink subframe to downlink subframe 0 of UL CC of carrier wave mapping sequence number j and PUSCH to be positioned at subframe 4 or subframe 9 in the TDD system value be 1, other the time value be 0,

Value is 4 in short Cyclic Prefix subframe structure, value is 2 in the long loop prefix subframe structure,

The descending ack channel group number of reserving for the subframe of the UL CC that distributed carrier wave mapping sequence number j in expression DL CC.

2. the ack channel distribution method under a kind of carrier aggregation as claimed in claim 1, is characterized in that, described is that at least one CC distributing carrier wave mapping sequence number comprises:

For distributing described carrier wave mapping sequence number with paired CC in pairs; Or

For not paired CC distributes described carrier wave mapping sequence number.

3. the ack channel distribution method under a kind of carrier aggregation as claimed in claim 2, is characterized in that, described is that at least one CC distributing carrier wave mapping sequence number is included as the different described carrier wave mapping sequence number of different CC distribution; When described be also to be included as paired CC when CC distributes described carrier wave mapping sequence number in pairs in pairs and to distribute described carrier wave mapping sequence number 0 at least one CC distributing carrier wave mapping sequence number comprises.

4. the ack channel distribution method under a kind of carrier aggregation as claimed in claim 1, is characterized in that, and is described for also comprising after at least one CC distributing carrier wave mapping sequence number:

Sending described carrier wave mapping sequence number in CC broadcasting in pairs; Or

Send the CC label; Or

Be sent as the carrier wave mapping sequence number of the CC of described UE configuration by the proprietary signaling of user equipment (UE).

5. the ack channel distribution method under a kind of carrier aggregation as claimed in claim 1, is characterized in that, the actual number of subframes of described each CC association specifically comprises:

For TDD system, arrange and the pre-defined definite number of HARQ timing relationship according to the member carrier ratio of uplink subframe to downlink subframe; Or

For FDD system, actual number of subframes is 1.

6. the ack channel distribution method under a kind of carrier aggregation as claimed in claim 1, is characterized in that, comprising:

When described CC was DL CC: described ack channel was the uplink ACK channel; Or

When described CC was UL CC: described ack channel was descending ack channel.

7. the ack channel distribution method under a kind of carrier aggregation as claimed in claim 6, is characterized in that, also comprises when described CC is DL CC:

Be that at least one DL CC reserves the uplink ACK channel according to the maximum number of subframes related with DL CC.

8. the ack channel distribution method under a kind of carrier aggregation as claimed in claim 6, is characterized in that, and is described Comprise:

Can be specially in short Cyclic Prefix subframe structure Or

Can be specially in the long loop prefix subframe structure

Wherein

That the base station is a parameter of having distributed the UL CC broadcast announcement of mapping sequence number j at above-mentioned DL CC; When being paired and azygous UL CC distributing carrier wave mapping sequence number, N _RBThe bandwidth of the above-mentioned DL CC that represents with resource block number when j=0, the bandwidth of the UL CC of the mapping sequence number j that in j＞0 o'clock is the distribution that represents with resource block number; When being azygous UL CC distributing carrier wave mapping sequence number, N _RBThe bandwidth of the UL CC of the mapping sequence number j that is the distribution that represents with resource block number.

9. the ack channel distribution method under a kind of carrier aggregation as claimed in claim 8, is characterized in that, and is described Comprise:

The base station is an identical numerical value of the common broadcast announcement of at least one UL CC; Or

The base station is at least one UL CC identical or different numerical value of broadcast announcement respectively.

10. the ack channel distribution method under a kind of carrier aggregation as claimed in claim 1 describedly also comprises for after at least one CC assigning ACK with the actual number of subframes related with each CC according to described carrier wave mapping sequence number:

Notify a common initial biasing of uplink ACK channel mapping or in pairs and in pairs DL CC notify respectively an initial biasing of uplink ACK channel mapping.

11. a base station is characterized in that, comprising:

The first distribution module is used at least one member carrier CC distributing carrier wave mapping sequence number;

The second distribution module is used for to be at least one CC assigning ACK according to carrier wave mapping sequence number with the actual number of subframes related with each DL CC;

When described ack channel was the uplink ACK channel, described assigning ACK comprised:

For the TDD system, at least one DL CC distributing carrier wave mapping sequence number is when DL CC distributes described carrier wave mapping sequence number in pairs in pairs and, first { select a p value to make N in 0,1,2,3} from set p ∈ when described _{J, p}≤ f (n _CCE)＜N _{J, p+1}With the p value substitution that obtains

$n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}\underset{m=0}{\overset{M_a-1}{\mathrm{\Σ}}}{N}_{a,m}^{\mathrm{ACK}}+(M_j-m-1)\×N_{j,p}+m\×N_{j,p+1}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH}}^{\left(1\right)}$

In calculate the uplink ACK channel label of continuous dispensing; Or

For the TDD system, when described at least one DL CC distributing carrier wave mapping sequence number is when DL CC distributes described carrier wave mapping sequence number in pairs, for DL CC in pairs:

First { select a p value to make N in 0,1,2,3} from set p ∈ _{J, p}≤ f (n _CCE)＜N _{J, p+1}With the p value substitution that obtains

$n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}\underset{m=0}{\overset{M_a-1}{\mathrm{\Σ}}}{N}_{a,m}^{\mathrm{ACK}}+(M_j-m-1)\×N_{j,p}+m\×N_{j,p+1}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH},\mathrm{unpair}}^{\left(1\right)}$

In calculate the uplink ACK channel label of continuous dispensing;

Wherein, f (n _CCE) expression control channel unit CCE label n _CCEFunction, N _{J, p}And N _{J, p+1}Expression has distributed interior all physical layer descendings of descending sub frame of DL CC of carrier wave mapping sequence number j to control the uplink ACK channel number that distributes when PDCCH take p and p+1 OFDM symbol, M _aAnd M _jExpression has distributed the descending related subframe collection index element number of the DL CC of carrier wave mapping sequence number a and j, Be expressed as the uplink ACK channel number of descending sub frame reservation corresponding to descending related subframe collection index m element of the DL CC that has distributed carrier wave mapping sequence number a, The initial biasing of uplink ACK channel in all physical layer ascending control channel PUCCH form 1/1a/1b channels that expression is shone upon according at least one DL CC CCE label,

Be the not initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels of DL CC CCE label mapping in pairs; Or

For the FDD system, when described at least one DL CC distributing carrier wave mapping sequence number be when DL CC distributes described carrier wave mapping sequence number in pairs in pairs and:

According to $n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}{N}_a^{\mathrm{ACK}}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH}}^{\left(1\right)}$ Calculate the uplink ACK channel label of continuous dispensing; Or

For the FDD system, when described at least one DL CC distributing carrier wave mapping sequence number is only when DL CC distributes described carrier wave mapping sequence number in pairs, for paired DL CC:

According to $n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}{N}_a^{\mathrm{ACK}}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH},\mathrm{unpair}}^{\left(1\right)}$ Calculate the uplink ACK channel label of continuous dispensing;

Wherein, f (n _CCE) expression CCE label n _CCEFunction,

Be expressed as the uplink ACK channel number of the descending sub frame reservation of the DL CC that has distributed carrier wave mapping sequence number a,

Expression is 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.

12. base station as claimed in claim 11 is characterized in that, comprising:

The first sending module is used for sending carrier wave mapping sequence number or CC label.

13. base station as claimed in claim 11 is characterized in that, comprising:

First reserves module, is used for reserving the uplink ACK channel according to the maximum number of subframes related with DL CC at least one DLCC.

14. a UE is characterized in that, comprising:

The 3rd distribution module is used for to be at least one member carrier CC assigning ACK according to carrier wave mapping sequence number with the actual number of subframes related with each DL CC;

When described ack channel was the uplink ACK channel, described assigning ACK comprised:

For the TDD system, at least one DL CC distributing carrier wave mapping sequence number is when DL CC distributes described carrier wave mapping sequence number in pairs in pairs and, first { select a p value to make N in 0,1,2,3} from set p ∈ when described _{J, p}≤ f (n _CCE)＜N _{J, p+1}With the p value substitution that obtains

$n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}\underset{m=0}{\overset{M_a-1}{\mathrm{\Σ}}}{N}_{a,m}^{\mathrm{ACK}}+(M_j-m-1)\×N_{j,p}+m\×N_{j,p+1}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH}}^{\left(1\right)}$

In calculate the uplink ACK channel label of continuous dispensing; Or

For the TDD system, when described at least one DL CC distributing carrier wave mapping sequence number is when DL CC distributes described carrier wave mapping sequence number in pairs, for DL CC in pairs:

First { select a p value to make N in 0,1,2,3} from set p ∈ _{J, p}≤ f (n _CCE)＜N _{J, p+1}With the p value substitution that obtains

$n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}\underset{m=0}{\overset{M_a-1}{\mathrm{\Σ}}}{N}_{a,m}^{\mathrm{ACK}}+(M_j-m-1)\×N_{j,p}+m\×N_{j,p+1}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH},\mathrm{unpair}}^{\left(1\right)}$

In calculate the uplink ACK channel label of continuous dispensing;

Wherein, f (n _CCE) expression control channel unit CCE label n _CCEFunction, N _{J, p}And N _{J, p+1}Expression has distributed interior all physical layer descendings of descending sub frame of DL CC of carrier wave mapping sequence number j to control the uplink ACK channel number that distributes when PDCCH take p and p+1 OFDM symbol, M _aAnd M _jExpression has distributed the descending related subframe collection index element number of the DL CC of carrier wave mapping sequence number a and j,

Be expressed as the uplink ACK channel number of descending sub frame reservation corresponding to descending related subframe collection index m element of the DL CC that has distributed carrier wave mapping sequence number a,

The initial biasing of uplink ACK channel in all physical layer ascending control channel PUCCH form 1/1a/1b channels that expression is shone upon according at least one DL CC CCE label,

Be the not initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels of DL CC CCE label mapping in pairs; Or

For the FDD system, when described at least one DL CC distributing carrier wave mapping sequence number be when DL CC distributes described carrier wave mapping sequence number in pairs in pairs and:

According to $n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}{N}_a^{\mathrm{ACK}}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH}}^{\left(1\right)}$ Calculate the uplink ACK channel label of continuous dispensing; Or

For the FDD system, when described at least one DL CC distributing carrier wave mapping sequence number is only when DL CC distributes described carrier wave mapping sequence number in pairs, for paired DL CC:

According to $n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}{N}_a^{\mathrm{ACK}}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH},\mathrm{unpair}}^{\left(1\right)}$ Calculate the uplink ACK channel label of continuous dispensing;

Wherein, f (n _CCE) expression CCE label n _CCEFunction,

Be expressed as the uplink ACK channel number of the descending sub frame reservation of the DL CC that has distributed carrier wave mapping sequence number a,

Expression is 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.

15. UE, is characterized in that as claimed in claim 14, also comprises:

The first receiver module is used for reception carrier mapping sequence number or CC label.

16. UE, is characterized in that as claimed in claim 15, if described the first receiver module reception is the CC label, also comprises:

The first mapping block is used for shining upon according to the CC label that receives according to preset rules the carrier wave mapping sequence number of distribution.

17. the ack channel distribution system under a carrier aggregation is characterized in that, comprises the base station:

Described base station is used at least one member carrier CC distributing carrier wave mapping sequence number; Come to be at least one CC assigning ACK according to carrier wave mapping sequence number with the actual number of subframes related with each DL CC;

When described ack channel was the uplink ACK channel, described assigning ACK comprised:

For the TDD system, at least one DL CC distributing carrier wave mapping sequence number is when DL CC distributes described carrier wave mapping sequence number in pairs in pairs and, first { select a p value to make N in 0,1,2,3} from set p ∈ when described _{J, p}≤ f (n _CCE)＜N _{J, p+1}With the p value substitution that obtains

$n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}\underset{m=0}{\overset{M_a-1}{\mathrm{\Σ}}}{N}_{a,m}^{\mathrm{ACK}}+(M_j-m-1)\×N_{j,p}+m\×N_{j,p+1}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH}}^{\left(1\right)}$

In calculate the uplink ACK channel label of continuous dispensing; Or

For the TDD system, when described at least one DL CC distributing carrier wave mapping sequence number is when DL CC distributes described carrier wave mapping sequence number in pairs, for DL CC in pairs:

First { select a p value to make N in 0,1,2,3} from set p ∈ _{J, p}≤ f (n _CCE)＜N _{J, p+1}With the p value substitution that obtains

$n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}\underset{m=0}{\overset{M_a-1}{\mathrm{\Σ}}}{N}_{a,m}^{\mathrm{ACK}}+(M_j-m-1)\×N_{j,p}+m\×N_{j,p+1}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH},\mathrm{unpair}}^{\left(1\right)}$

In calculate the uplink ACK channel label of continuous dispensing;

Wherein, f (n _CCE) expression control channel unit CCE label n _CCEFunction, N _{J, p}And Nj _{, p+1}Expression has distributed interior all physical layer descendings of descending sub frame of DL CC of carrier wave mapping sequence number j to control the uplink ACK channel number that distributes when PDCCH take p and p+1 OFDM symbol, M _aAnd M _jExpression has distributed the descending related subframe collection index element number of the DL CC of carrier wave mapping sequence number a and j,

Be expressed as the uplink ACK channel number of descending sub frame reservation corresponding to descending related subframe collection index m element of the DL CC that has distributed carrier wave mapping sequence number a,

The initial biasing of uplink ACK channel in all physical layer ascending control channel PUCCH form 1/1a/1b channels that expression is shone upon according at least one DL CC CCE label,

Be the not initial biasing of uplink ACK channel in all PUCCH form 1/1a/1b channels of DL CC CCE label mapping in pairs; Or

For the FDD system, when described at least one DL CC distributing carrier wave mapping sequence number be when DL CC distributes described carrier wave mapping sequence number in pairs in pairs and:

According to $n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}{N}_a^{\mathrm{ACK}}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH}}^{\left(1\right)}$ Calculate the uplink ACK channel label of continuous dispensing; Or

For the FDD system, when described at least one DL CC distributing carrier wave mapping sequence number is only when DL CC distributes described carrier wave mapping sequence number in pairs, for paired DL CC:

According to $n_{\mathrm{PUCCH}}^{\left(1\right)}=\underset{a=0}{\overset{j-1}{\mathrm{\Σ}}}{N}_a^{\mathrm{ACK}}+f\left(n_{\mathrm{CCE}}\right)+N_{\mathrm{PUCCH},\mathrm{unpair}}^{\left(1\right)}$ Calculate the uplink ACK channel label of continuous dispensing;

Wherein, f (n _CCE) expression CCE label n _CCEFunction, Be expressed as the uplink ACK channel number of the descending sub frame reservation of the DL CC that has distributed carrier wave mapping sequence number a,

Expression is 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.

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