CN101951684B

CN101951684B - A kind of sending method of confirmation and user terminal

Info

Publication number: CN101951684B
Application number: CN201010508556.3A
Authority: CN
Inventors: 戴博; 任璐; 梁春丽; 杨维维; 夏树强
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2010-09-30
Filing date: 2010-09-30
Publication date: 2015-08-12
Anticipated expiration: 2030-09-30
Also published as: CN101951684A

Abstract

The sending method of confirmation and a user terminal, be applied in the system adopting carrier aggregation technology, described user terminal comprises: bit distribution module, message processing module and information sending module; Described method comprises: subscriber equipment is according to uplink-downlink configuration information, for the bit number shared by the confirmation of descending sub frame difference allocation of downlink subframe each in the configuration window that sub-frame of uplink is corresponding, wherein, total bit number that the confirmation of all descending sub frames takies is positive integer k; To the reception condition of the Physical Downlink Shared Channel (PDSCH) in each descending sub frame, respectively the feedback acknowledgment information of each descending sub frame is carried out and operation, obtain the confirmation of each descending sub frame; Wherein, the bit number shared by the confirmation of each descending sub frame is subscriber equipment is the bit number that it distributes, and the feedback acknowledgment information of descending sub frame is the feedback information of the PDSCH received in high descending sub frame.The present invention ensure that throughput of system to greatest extent.

Description

A kind of sending method of confirmation and user terminal

Technical field

The present invention relates to field of mobile wireless communication, particularly relate to a kind of sending method and user terminal of confirmation.

Background technology

Long Term Evolution (Long Term Evolution, referred to as LTE) radio frames (RadioFrame) in system comprises Frequency Division Duplexing (FDD) (Frequency Division Duplex, referred to as FDD) frame structure of pattern and time division duplex (Time Division Duplex, referred to as TDD) pattern.As shown in Figure 1, in the frame structure of fdd mode, the radio frames of one 10 milliseconds (ms) is 0.5ms by 20 length, is numbered the time slot of 0 ~ 19 (slot) and forms, time slot 2i and 2i+1 forms subframe (subframe) i (wherein, 0≤i≤9) that length is 1ms.As shown in Figure 2, in the frame structure of tdd mode, the radio frames of a 10ms is made up of two long fields (halfframe) for 5ms, it is the subframe of 1ms that a field comprises 5 length, subframe i is defined as the combination (wherein, 0≤i≤9) of 2 long time slot 2i and 2i+1 for 0.5ms.

In above-mentioned two kinds of frame structures, adopt standard cyclic prefix (Normal Cyclic Prefix, referred to as Normal CP) time, the symbol that 7 length are 66.7 microseconds (us) is comprised in a time slot, wherein the CP length of first symbol is 5.21us, and the CP length of all the other 6 symbols is 4.69us; When adopting extended cyclic prefix (Extended Cyclic Prefix, referred to as Extended CP), comprise 6 symbols in a time slot, the CP length of each symbol is 16.67us.

The uplink-downlink configuration that each subframe is supported is as shown in table 1.Wherein, " D " represents the subframe being exclusively used in downlink transfer; " U " represents the subframe being exclusively used in uplink; " S " represents for DwPTS (Downlink Pilot Time Slot; descending pilot frequency time slot); the special subframe in protection interval (Guard Period, referred to as GP) and UpPTS (Uplink Pilot Time Slot, uplink pilot time slot) these three territories.

The uplink-downlink configuration signal table that each subframe of table 1 is supported

As can be seen from the above table, LTE TDD supports the up-downgoing switching cycle of 5ms and 10ms.If the downstream-to-upstream transfer point cycle is 5ms, special subframe can be present in two fields; If the downstream-to-upstream transfer point cycle is 10ms, special subframe is only present in first field; Subframe #0 and subframe #5 and DwPTS is always for downlink transfer; UpPTS and be exclusively used in uplink immediately following subframe after special subframe.

In LTE system, PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) for bearing downlink control information (Downlink Control Information, referred to as DCI), comprising: uplink and downlink schedule information and uplink power control information.The form (DCI format) of DCI is divided into following several: DCI format 0, DCI format 1, DCI format 1A, DCI format 1B, DCI format 1C, DCI format 1D, DCI format 2, DCI format 2A, DCI format 3 and DCI format 3A etc.The physical resource of transmission PDCCH is with control channel element (ControlChannel Element, referred to as CCE) be unit, the size of a CCE is 9 resource element groups (Resource Element Group, referred to as REG), i.e. 36 resource elements (ResourceElement), a PDCCH may take 1,2,4 or 8 CCE.

In the FDD system of LTE, because ascending-descending subframes is one to one, so as PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel) when only comprising a transmission block, UE will feed back the ACK (Acknowledge of 1 bit, correct response)/NACK (Non-Acknowledge, wrong responses) response message; When PDSCH comprises two transmission blocks, UE will feed back the ACK/NACK response message of 2 bits.But in a tdd system, ascending-descending subframes is not one to one, that is the ACK/NACK response message that multiple descending sub frame is corresponding needs PUCCH (the Physical Uplink Control Channel at a sub-frame of uplink, Physical Uplink Control Channel) upper to send, the set of wherein corresponding with sub-frame of uplink multiple descending sub frames constitutes " bundling window (binding window) ".

Therefore, the sending method of ACK/NACK response message has two kinds in a tdd system: one is binding (bundling) method, the core concept of the method is that ACK/NACK response message corresponding for each descending sub frame transmission block needing to feed back at this sub-frame of uplink is carried out logic and operation according to streams of code words index, if wherein comprise 2 transmission blocks at least one descending sub frame, then UE will feed back the ACK/NACK response message of 2 bits, if all comprise a transmission block in each subframe, then UE will feed back the ACK/NACK response message of 1 bit, another kind is Channel assignment (multiplexing withchannel selection, be called for short multiplexing) method, the core concept of the method is the different feedback states utilizing different modulation symbol on different PUCCH channels and this channel to represent the descending sub frame that needs feed back at this sub-frame of uplink, if comprise multiple transmission block in descending sub frame, Channel assignment is carried out again after so first the ACK/NACK response message of multiple transmission block feedbacks of this descending sub frame being carried out logical AND (being also called spatialbundling) operation, then PUCCH format1b is used to send, the ACK/NACK information of 4 bits can be transmitted at most.

In order to meet senior International Telecommunication Union (International TelecommunicationUnion-Advanced, referred to as ITU-Advanced) requirement, as senior Long Term Evolution (the Long Term Evolution Advanced of LTE evolution standard, referred to as LTE-A) system needs to support larger system bandwidth (reaching as high as 100MHz), and needs the existing standard of backward compatibility LTE.On the basis of existing LTE system, can obtain larger bandwidth by the bandwidth of LTE system being carried out merging, this technology is called carrier aggregation (Carrier Aggregation, referred to as CA) technology.This technology can improve IMT-Advance system the availability of frequency spectrum, to alleviate frequency spectrum resource in short supply, and then optimizes the utilization of frequency spectrum resource.The LTE system bandwidth of described carrier aggregation can regard component carrier frequency (Component Carrier as, referred to as frequency spectrum), each component carrier frequency also can be called a community (Cell), and that is a frequency spectrum can be polymerized by n component carrier frequency (Cell).A R10UE (User Equipment, subscriber equipment) resource be made up of n community (component carrier frequency) of frequency domain, wherein, a community is called main plot (Primary cell), and all the other communities are called auxiliary community (Secondary cell).

A kind of form based on discrete Fourier transform (DFT) expansion OFDM (DFTSpread-OFDM) is introduced in lte-a system, for supporting that UE more than 4 bits is to carry out the feedback of ACK/NACK response message, and this form based on DFT-s-OFDM is newly called control channel form 3, PUCCH Format 3 adopts existing RM (32, O) coded system, can transmit at most the information of 11 bits.

In lte-a system, sub-frame of uplink can corresponding multiple descending sub frame, and, each descending sub frame there is multiple community, as shown in Figure 3.Each community can by a transport block transmission according to transmission mode difference, also can by two transport block transmission, so, in lte-a system, UE needs the ACK/NACK information content of feedback can increase at double, and also not about the method for how feedback acknowledgment information under carrier aggregation scene in prior art.

Summary of the invention

Main purpose of the present invention is the sending method and the user terminal that provide a kind of confirmation, to solve the defect cannot feeding back multiple confirmation under carrier aggregation scene in a sub-frame of uplink.

For solving the problem, the invention provides a kind of sending method of confirmation, being applied in the system adopting carrier aggregation technology, comprising:

Subscriber equipment is according to uplink-downlink configuration information, and be the bit number shared by the confirmation of descending sub frame difference allocation of downlink subframe each in the configuration window that sub-frame of uplink is corresponding, wherein, the total bit number shared by the confirmation of all descending sub frames is positive integer k;

For the reception condition of the Physical Downlink Shared Channel (PDSCH) in described each descending sub frame, respectively the feedback acknowledgment information of each descending sub frame is carried out and operation, obtain the confirmation of each descending sub frame; Wherein, the bit number shared by the confirmation of each descending sub frame is described subscriber equipment is the bit number that it distributes, and the feedback acknowledgment information of described descending sub frame is the feedback information of each PDSCH received in described descending sub frame;

K the bit comprising the confirmation of all descending sub frames is sent in described sub-frame of uplink.

Further, said method also can have following characteristics:

Described subscriber equipment specifically comprises according to the bit number of uplink-downlink configuration information shared by the confirmation of the allocation of downlink subframe respectively of each descending sub frame in configuration window corresponding to sub-frame of uplink: described subscriber equipment is according to the quantity n of the descending sub frame comprised in configuration window corresponding to described sub-frame of uplink, be first that wherein k mod n descending sub frame distributes, the bit number that each descending sub frame is assigned with is and then be the individual descending sub frame distribution of residue n-(k mod n), the bit number that each descending sub frame is assigned with is

Further, said method also can have following characteristics:

The bit number be assigned with is the each descending sub frame of kmod n be arranged in front k mod n descending sub frame of configuration window corresponding to described sub-frame of uplink or rear k mod n descending sub frame.

Further, said method also can have following characteristics:

The feedback information of the PDSCH of configuration in described each descending sub frame determined by described subscriber equipment according to descending assignment information (DAI) information received;

Wherein, described DAI information for representing the sum having the PDSCH of PDCCH that base station is dispatched on the descending sub frame i of this DAI place, and same descending sub frame distributes have the DAI value that the PDSCH of Physical Downlink Control Channel (PDCCH) is corresponding identical;

Or, described DAI information is for representing described DAI place descending sub frame i and belonging to together in configuration window corresponding to sub-frame of uplink with this descending sub frame i and be positioned at the sum having the PDSCH of PDCCH that all descending sub frames before described subframe i distribute in time domain, and the DAI value having the PDSCH of PDCCH corresponding that same descending sub frame distributes is identical.

Further, said method also can have following characteristics:

Described DAI information is 2 Bit datas, and transmission in the descending control information format (DCI Format) representing down dispatch information.

Further, said method also can have following characteristics:

Described subscriber equipment obtains the confirmation of each descending sub frame, specifically comprises: described subscriber equipment determines the quantity of the PDSCH that base station configures on descending sub frame i according to the described DAI information received then the quantity having the PDSCH of PDCCH that descending sub frame i detects is combined in obtain the feedback information of each PDSCH in this descending sub frame i;

When time, in this descending sub frame i, the feedback information of each PDSCH is all the confirmation of NACK or this descending sub frame i is NACK;

When time, feed back according to the bit number be assigned with according to this descending sub frame i the actual reception condition of each PDSCH.

Further, said method also can have following characteristics:

Describedly specifically to comprise according to feeding back according to the bit number that this descending sub frame i is assigned with the actual reception condition of each PDSCH:

The bit number be assigned with according to described descending sub frame i is m _i, the reception condition for each PDSCH in this descending sub frame i is first fed back by described subscriber equipment individual ACK/NACK information divides m _igroup, then carries out and operation the ACK/NACK information comprised in each group respectively, finally each group is passed through 1 bit information obtained with operation and is combined, obtain m _ithe feedback information of bit.

Further, said method also can have following characteristics:

Reception condition for each PDSCH in this descending sub frame i is first fed back by described subscriber equipment individual ACK/NACK information divides m _igroup specifically comprises: described subscriber equipment is for being somebody's turn to do individual ACK/NACK information encoding, then by the numbering mould m of each ACK/NACK information _i, the ACK/NACK information corresponding to numbering identical for modulus value after delivery is divided one group, and using the index of this modulus value as correspondence group.

Further, said method also can have following characteristics:

Reception condition for each PDSCH in this descending sub frame i is first fed back by described subscriber equipment individual ACK/NACK information divides m _igroup specifically comprises: described subscriber equipment is for being somebody's turn to do individual ACK/NACK information encoding, described in inciting somebody to action according to number order individual ACK/NACK information is divided into m _igroup, wherein, front the ACK/NACK information content that in individual group, often group is assigned with is after the ACK/NACK information content that in individual group, often group is assigned with is or described subscriber equipment is for being somebody's turn to do individual ACK/NACK information encoding, described in inciting somebody to action according to number order individual ACK/NACK information is divided into m _igroup, wherein, front the ACK/NACK information content that in individual group, often group is assigned with is after the ACK/NACK information content that in individual group, often group is assigned with is

Further, said method also can have following characteristics:

When corresponding two transmission blocks of PDSCH, ACK/NACK information feed back for the reception condition of this PDSCH in descending sub frame be ACK/NACK information corresponding for two transmission blocks is carried out with operate after the result that obtains;

Or, when corresponding two transmission blocks of a PDSCH, if need the number of the ACK/NACK information fed back to be greater than m in the descending sub frame i of this PDSCH place _i, then the ACK/NACK information fed back for the reception condition of this PDSCH in descending sub frame be ACK/NACK information corresponding for two transmission blocks is carried out with operation after the result that obtains; If need the number of the ACK/NACK information fed back to be less than or equal to m in the descending sub frame i of this PDSCH place _i, then the ACK/NACK information fed back for the reception condition of this PDSCH in descending sub frame is the ACK/NACK information that two transmission blocks are corresponding.

Further, said method also can have following characteristics:

Carry out specifically comprising with operation to described ACK/NACK information: if carry out with the ACK/NACK information of operation at least comprise a nack message, be then NACK with operating result; If carry out with operation all ACK/NACK information be all ACK information, then with operate result be ACK.

Further, said method also can have following characteristics:

When using channel selecting method to send the confirmation of described k bit, k=4; When using PUCCHFormat 3 to send the confirmation of described k bit, k=8,10,11,20 or 22.

Present invention also offers a kind of user terminal, be applied in the system adopting carrier aggregation technology, comprise: bit distribution module, message processing module and information sending module;

Described bit distribution module is used for according to uplink-downlink configuration information, for the bit number shared by the confirmation of descending sub frame difference allocation of downlink subframe each in the configuration window that sub-frame of uplink is corresponding, wherein, the total bit number shared by confirmation of all descending sub frames is positive integer k;

Message processing module is used for the reception condition for the Physical Downlink Shared Channel (PDSCH) in described each descending sub frame, carries out and operation respectively, obtain the confirmation of each descending sub frame to the feedback acknowledgment information of each descending sub frame; Wherein, the bit number shared by the confirmation of each descending sub frame is described bit distribution module is the bit number that it distributes, and the feedback acknowledgment information of described descending sub frame is the feedback information of each PDSCH received in described descending sub frame;

Described information sending module is used in described sub-frame of uplink, send k the bit comprising the confirmation of all descending sub frames.

Further, above-mentioned user terminal also can have following characteristics:

Described bit distribution module is used for specifically comprising according to the bit number of uplink-downlink configuration information shared by the confirmation of the allocation of downlink subframe respectively of each descending sub frame in configuration window corresponding to sub-frame of uplink: described bit distribution module is used for the quantity n according to the descending sub frame comprised in configuration window corresponding to described sub-frame of uplink, be first that wherein k mod n descending sub frame distributes, the bit number that each descending sub frame is assigned with is and then be the individual descending sub frame distribution of residue n-(k mod n), the bit number that each descending sub frame is assigned with is

Further, above-mentioned user terminal also can have following characteristics:

Described message processing module is used for the feedback information of the PDSCH determining configuration in described each descending sub frame according to descending assignment information (DAI) information received;

Further, above-mentioned user terminal also can have following characteristics:

Described DAI information is 2 Bit datas, and described message processing module is used for representing that the descending control information format (DCI Format) of down dispatch information receives described DAI by receiving.

Further, above-mentioned user terminal also can have following characteristics:

Described message processing module, for obtaining the confirmation of each descending sub frame, specifically comprises: described message processing module is for determining the quantity of the PDSCH that base station configures on descending sub frame i according to the described DAI information received then the quantity having the PDSCH of PDCCH that descending sub frame i detects is combined in obtain the feedback information of each PDSCH in this descending sub frame i;

When time, described message processing module is used for feeding back according to the bit number be assigned with according to this descending sub frame i the actual reception condition of each PDSCH.

Further, above-mentioned user terminal also can have following characteristics:

Described message processing module is used for specifically comprising according to feeding back according to the bit number that this descending sub frame i is assigned with the actual reception condition of each PDSCH:

The bit number that described message processing module is used for being assigned with according to described descending sub frame i is m _i, first the reception condition for each PDSCH in this descending sub frame i is fed back individual ACK/NACK information divides m _igroup, then carries out and operation the ACK/NACK information comprised in each group respectively, finally each group is passed through 1 bit information obtained with operation and is combined, obtain m _ithe feedback information of bit.

Further, above-mentioned user terminal also can have following characteristics:

Described message processing module is used for first the reception condition for each PDSCH in this descending sub frame i being fed back individual ACK/NACK information divides m _igroup specifically comprises: described message processing module is used for for being somebody's turn to do individual ACK/NACK information encoding, then by the numbering mould m of each ACK/NACK information _i, the ACK/NACK information corresponding to numbering identical for modulus value after delivery is divided one group, and using the index of this modulus value as correspondence group.

Further, above-mentioned user terminal also can have following characteristics:

Described message processing module is used for first the reception condition for each PDSCH in this descending sub frame i being fed back individual ACK/NACK information divides m _igroup specifically comprises: described message processing module is used for for being somebody's turn to do individual ACK/NACK information encoding, described in inciting somebody to action according to number order individual ACK/NACK information is divided into m _igroup, wherein, front the ACK/NACK information content that in individual group, often group is assigned with is after the ACK/NACK information content that in individual group, often group is assigned with is or described message processing module is used for for being somebody's turn to do individual ACK/NACK information encoding, described in inciting somebody to action according to number order individual ACK/NACK information is divided into m _igroup, wherein, front the ACK/NACK information content that in individual group, often group is assigned with is after the ACK/NACK information content that in individual group, often group is assigned with is

Further, above-mentioned user terminal also can have following characteristics:

Described message processing module is used for carrying out specifically comprising with operation to described ACK/NACK information: described message processing module be used for judge to carry out with the ACK/NACK information of operation at least comprise a nack message, then obtaining with operating result is NACK; Also for judging that all ACK/NACK information of carrying out with operation are all ACK information, then obtaining with the result operated is ACK.

After adopting the present invention, ensure that throughput of system to greatest extent, decrease the PUCCH resource quantity of reserved feeding back ACK/nack message.

Accompanying drawing explanation

Fig. 1 is frame structure schematic diagram in prior art FDD system;

Fig. 2 is frame structure schematic diagram in prior art TDD system;

Fig. 3 is the next sub-frame of uplink of carrier aggregation scene corresponding downstream arrangements window schematic diagram in prior art;

Fig. 4 is the schematic diagram that DAI in the embodiment of the present invention (Dowlink Assignment Index, descending assignment information) represents sum;

Fig. 5 is the schematic diagram that in the embodiment of the present invention, DAI represents the PDSCH number on the descending sub frame of place;

Fig. 6 is another schematic diagram that in the embodiment of the present invention, DAI represents sum;

Fig. 7 is another schematic diagram that in the embodiment of the present invention, DAI represents the PDSCH number on the descending sub frame of place.

Embodiment

Describe embodiments of the present invention in detail below with reference to embodiment, to the present invention, how application technology means solve technical problem whereby, and the implementation procedure reaching technique effect can fully understand and implement according to this.

In the system adopting carrier aggregation technology, the community correspondence one that a descending sub frame configures needs the PDSCH of feeding back ACK/nack message, this PDSCH is undertaken indicating (in this article by a PDCCH, be called for short the PDSCH of PDCCH) by the PDSCH that PDCCH indicates, a DAI can be transmitted at a PDCCH, the transmission block that this PDSCH is corresponding can be one or two, and space and operation are exactly carry out and operation the ACK/NACK information of two transmission blocks corresponding to PDSCH.

The sending method of confirmation of the present invention, be applicable to the system adopting carrier aggregation technology, comprise: UE is according to uplink-downlink configuration information, for the bit number shared by the confirmation of descending sub frame difference allocation of downlink subframe each in the configuration window that sub-frame of uplink is corresponding, wherein, total bit number shared by the confirmation of all descending sub frames is k, k is positive integer; For the reception condition of the PDSCH in described each descending sub frame, respectively the feedback acknowledgment information of each descending sub frame is carried out and operation, obtain the confirmation of each descending sub frame, wherein, bit number shared by the confirmation of each descending sub frame is described subscriber equipment is the bit number that it distributes, and the feedback acknowledgment information of above-mentioned descending sub frame is the feedback information (i.e. ACK/NACK information) receiving each PDSCH in this descending sub frame; K the bit comprising the confirmation of all descending sub frames will be sent in above-mentioned sub-frame of uplink.Wherein, carry out referring to operation to feedback information ACK/NACK information: when all confirmations of carrying out with operate are all ACK information, be ACK with the result of operation; When carry out with operation multiple confirmations in have at least one to be nack message time, with operation result be NACK.

When using channel selecting method to send the confirmation of described k bit, k=4; When using PUCCHFormat 3 to send the confirmation of described k bit, k=10,11 or 8,20,22.

The bit number of the uplink-downlink configuration information that above-mentioned UE issues according to high level shared by the confirmation of the allocation of downlink subframe respectively of each descending sub frame in configuration window corresponding to sub-frame of uplink realizes by following manner: UE is according to the quantity of the descending sub frame comprised in configuration window corresponding to this sub-frame of uplink, for above-mentioned each descending sub frame allocation bit number, namely can be wherein k mod n descending sub frame to distribute, the bit number that each descending sub frame is assigned with is for the individual descending sub frame of residue n-(k mod n) distributes, the bit number that each descending sub frame is assigned with is wherein n is the quantity of all descending sub frames comprised in the configuration window that this sub-frame of uplink is corresponding.Preferably, the bit number be assigned with is the each descending sub frame of k mod n be front k mod n the descending sub frame being arranged in configuration window corresponding to this sub-frame of uplink, or rear k mod n descending sub frame.

The feedback information of the PDSCH of configuration in described each descending sub frame determined by described subscriber equipment according to the DAI information received, this DAI Information Availability is in representing the PDSCH sum having PDCCH that base station is distributed on the descending sub frame i of this DAI place, and the DAI value having the PDSCH of PDCCH corresponding that same descending sub frame distributes is identical; Or, this DAI information is for representing described DAI place descending sub frame i and belonging to together in configuration window corresponding to sub-frame of uplink with this descending sub frame i and be positioned at the PDSCH sum having PDCCH that all descending sub frames before described subframe i distribute in time domain, and the DAI value having the PDSCH of PDCCH corresponding that same descending sub frame distributes is identical.

Further, this DAI Information Availability 2 Bit data represents, its value is 00,01,10 or 11, expression 1,2,3,4 (or other numerical value can be respectively used to, as shown in table 2, as long as the corresponding relation of Bit data and corresponding numerical value is known in base station and UE side), certainly, the corresponding relation of bit value and actual value can change arbitrarily, this DAI information can be transmitted, by obtaining DAI information to described total digital-to-analogue 4 in the descending control information format (DCI Format) representing down dispatch information.

Table 2DAI value

DAI signaling	Implication
		00	1/5/9....
10	2/6/10...
		01	3/7/11...
11	4/8/12...

UE can determine the quantity of the PDSCH that base station configures on each descending sub frame according to the DAI information received therefore, UE is in conjunction with above-mentioned DAI information and the quantity having the PDSCH of PDCCH that detects on descending sub frame i the feedback information that the reception condition for PDSCH each in each descending sub frame is fed back can be determined, that is: when time, illustrate that UE does not detect the PDSCH of PDCCH on descending sub frame i, then the feedback information fed back for the reception condition of each PDSCH in this descending sub frame i is all the confirmation of NACK or this descending sub frame i is NACK; When time, illustrate that UE detects on descending sub frame i have the number of the PDSCH of PDCCH from high-rise for the number of its PDSCH configured different, then the feedback information fed back for the reception condition of each PDSCH in this descending sub frame i is all the confirmation of NACK or this descending sub frame i is NACK; When time, illustrate that UE detects on descending sub frame i have the number of the PDSCH of PDCCH with high-rise for the number of its PDSCH configured identical, then can feed back according to the bit number be assigned with according to this descending sub frame i the actual reception condition of each PDSCH.

When time, suppose that the bit number that this descending sub frame i is assigned with is m _i, the reception condition for each PDSCH in this descending sub frame i can first be fed back by UE individual ACK/NACK information divides m _igroup, then carries out and operation the ACK/NACK information comprised in each group respectively, finally each group is passed through 1 bit information obtained with operation and is combined, obtain m _ithe feedback information of bit.When carrying out in group with operation, if there is no ACK/NACK information in this group, be then NACK with operating result.UE will individual ACK/NACK information is divided into m _ithe method of group, Ke Yishi:

For this individual ACK/NACK information encoding, then by the numbering mould m of each ACK/NACK information _i, the ACK/NACK information corresponding to numbering identical for modulus value after delivery is divided one group, and using the index of modulus value as correspondence group;

Or,

Reception condition for each PDSCH in this descending sub frame i is first fed back by described subscriber equipment individual ACK/NACK information divides m _igroup specifically comprises: described subscriber equipment is for being somebody's turn to do individual ACK/NACK information encoding, according to number order by above-mentioned individual ACK/NACK information is divided into m _iin group, front the ACK/NACK quantity that in individual group, often group is assigned with is after the ACK/NACK quantity that in group, often group is assigned with is or described subscriber equipment is for being somebody's turn to do individual ACK/NACK information encoding, described in inciting somebody to action according to number order individual ACK/NACK information is divided into m _iin group, wherein, front the ACK/NACK quantity that in group, often group is assigned with is after the ACK/NACK quantity that in individual group, often group is assigned with is

Preferably, the index of group is exactly the index of the feedback information bits corresponding to this group.

In addition, when corresponding two transmission blocks of PDSCH, ACK/NACK information feed back for the reception condition of this PDSCH in descending sub frame be ACK/NACK information corresponding for two transmission blocks is carried out with operate after the result that obtains;

User terminal of the present invention, is applied in the system adopting carrier aggregation technology, comprises: bit distribution module, message processing module and information sending module;

Bit distribution module is used for according to uplink-downlink configuration information, for the bit number shared by the confirmation of descending sub frame difference allocation of downlink subframe each in the configuration window that sub-frame of uplink is corresponding, wherein, the total bit number shared by confirmation of all descending sub frames is positive integer k;

Message processing module is used for the reception condition for the PDSCH in each descending sub frame, carries out and operation respectively, obtain the confirmation of each descending sub frame to the feedback acknowledgment information of each descending sub frame; Wherein, the bit number shared by the confirmation of each descending sub frame is bit distribution module is the bit number that it distributes, and the feedback acknowledgment information of descending sub frame is the feedback information of each PDSCH received in this descending sub frame;

Information sending module is used in above-mentioned sub-frame of uplink, send k the bit comprising the confirmation of all descending sub frames.

Wherein, bit distribution module is used for specifically comprising according to the bit number of uplink-downlink configuration information shared by the confirmation of the allocation of downlink subframe respectively of each descending sub frame in configuration window corresponding to sub-frame of uplink: bit distribution module is used for the quantity n according to the descending sub frame comprised in configuration window corresponding to sub-frame of uplink, be first that wherein k mod n descending sub frame distributes, the bit number that each descending sub frame is assigned with is and then be the individual descending sub frame distribution of residue n-(k mod n), the bit number that each descending sub frame is assigned with is

Message processing module can be used for the feedback information of the PDSCH determining configuration in each descending sub frame according to the DAI information received;

Wherein, DAI information for representing the sum having the PDSCH of PDCCH that base station is dispatched on the descending sub frame i of this DAI place, and same descending sub frame distributes have the DAI value that the PDSCH of Physical Downlink Control Channel (PDCCH) is corresponding identical;

Or, DAI information is for representing this DAI place descending sub frame i and belonging to together in configuration window corresponding to sub-frame of uplink with this descending sub frame i and be positioned at the sum having the PDSCH of PDCCH that all descending sub frames before descending sub frame i distribute in time domain, and the DAI value having the PDSCH of PDCCH corresponding that same descending sub frame distributes is identical.

Preferably, DAI information is 2 Bit datas, and message processing module is used for representing that the descending control information format (DCI Format) of down dispatch information receives this DAI by receiving.

Message processing module, for obtaining the confirmation of each descending sub frame, specifically comprises: message processing module is for determining the quantity of the PDSCH that base station configures on descending sub frame i according to the DAI information received then the quantity having the PDSCH of PDCCH that descending sub frame i detects is combined in obtain the feedback information of each PDSCH in this descending sub frame i;

When time, message processing module is used for feeding back according to the bit number be assigned with according to this descending sub frame i the actual reception condition of each PDSCH.

Message processing module is used for specifically comprising according to feeding back according to the bit number that this descending sub frame i is assigned with the actual reception condition of each PDSCH: the bit number that message processing module is used for being assigned with according to descending sub frame i is m _i, first the reception condition for each PDSCH in this descending sub frame i is fed back individual ACK/NACK information divides m _igroup, then carries out and operation the ACK/NACK information comprised in each group respectively, finally each group is passed through 1 bit information obtained with operation and is combined, obtain m _ithe feedback information of bit.

Message processing module is used for first the reception condition for each PDSCH in this descending sub frame i being fed back individual ACK/NACK information divides m _igroup specifically comprises: message processing module is used for for being somebody's turn to do individual ACK/NACK information encoding, then by the numbering mould m of each ACK/NACK information _i, the ACK/NACK information corresponding to numbering identical for modulus value after delivery is divided one group, and using the index of this modulus value as correspondence group.

Message processing module is used for first the reception condition for each PDSCH in this descending sub frame i being fed back individual ACK/NACK information divides m _igroup specifically comprises: message processing module is used for for being somebody's turn to do individual ACK/NACK information encoding, according to number order by above-mentioned individual ACK/NACK information is divided into m _igroup, wherein, front the ACK/NACK information content that in individual group, often group is assigned with is after the ACK/NACK information content that in individual group, often group is assigned with is or message processing module is used for for being somebody's turn to do individual ACK/NACK information encoding, according to number order by above-mentioned individual ACK/NACK information is divided into m _igroup, wherein, front the ACK/NACK information content that in individual group, often group is assigned with is after the ACK/NACK information content that in individual group, often group is assigned with is

Message processing module is used for carrying out specifically comprising with operation to ACK/NACK information: message processing module be used for judge to carry out with the ACK/NACK information of operation at least comprise a nack message, then obtaining with operating result is NACK; Also for judging that all ACK/NACK information of carrying out with operation are all ACK information, then obtaining with the result operated is ACK.

With two methods example, the present invention is further described below.

Application example 1

Under channel selection modes:

Under carrier aggregation scene, according to uplink-downlink configuration information and the DAI information detected, UE merges into k bit by needing the ACK/NACK information of feedback to carry out ' with operation ', and then send k bit information after described merging, wherein, k is positive integer;

DAI definition 1

Described DAI represents: in a sub-frame of uplink correspondence configuration window, comprise the sum having the PDSCH of PDCCH that all descending sub frames before described DAI place descending sub frame i and this subframe distribute, and the DAI value having the PDSCH of PDCCH corresponding that descending sub frame i distributes is identical.

Such as: a sub-frame of uplink correspondence configuration window is X descending sub frame, and each descending sub frame is configured with Y community, the transmission block quantity that on descending sub frame i, allocating cell j transmits is Z _{i, j}, wherein, X can be that 1,2,3,4,9, Y can 1,2,3,4,5, Z _{i, j}can be 1,2.

Work as X=4, during Y=5, suppose, PDSCH all in base station scheduling sub-frame of uplink correspondence configuration window, the DAI of corresponding first descending sub frame is 00, represents that its value be the DAI of 5, second descending sub frame is 10, represent that its value is 10, the DAI of the 3rd descending sub frame is 01, represents that its value be the DAI of the 15, four descending sub frame is 11, represent that its value is 20, as shown in Figure 4.

DAI definition 2

Described DAI represents the quantity of the community of scheduling on described DAI place descending sub frame i, and the DAI value having the PDSCH of PDCCH corresponding of distributing on descending sub frame i is identical;

Such as: a sub-frame of uplink correspondence configuration window is X descending sub frame, and each descending sub frame is configured with Y community, the transmission block quantity that on descending sub frame i, allocating cell j transmits is Z _{i, j}, wherein, X can be that 1,2,3,4,9, Y can 1,2,3,4,5, Z _{i, j}can be 1,2;

Work as X=4, during Y=5, suppose, base station scheduled the PDSCH that 3 have PDCCH on first descending sub frame, DAI Bit data is 11, represent that its value is 3, second descending sub frame scheduled the PDSCH that 2 have PDCCH, DAI Bit data is 01, represent that its value is 2,3rd descending sub frame scheduled the PDSCH that 4 have PDCCH, and DAI Bit data is 00, represents that its value is 4,4th descending sub frame scheduled the PDSCH that 5 have PDCCH, DAI Bit data is 10, represents that its value is 1, as shown in Figure 5.

UE, according to the quantity of the descending sub frame comprised in configuration window corresponding to this sub-frame of uplink, is above-mentioned each descending sub frame allocation bit number: namely can be wherein k mod n descending sub frame and distribute, the bit number that each descending sub frame is assigned with is for the individual descending sub frame of residue n-(k mod n) distributes, the bit number that each descending sub frame is assigned with is wherein n is the quantity of all descending sub frames comprised in the configuration window that this sub-frame of uplink is corresponding.Preferably, the bit number be assigned with is the each descending sub frame of k mod n be front k mod n the descending sub frame being arranged in configuration window corresponding to this sub-frame of uplink, or rear k mod n descending sub frame.；

Such as: k=4, time namely descending sub frame quantity is 4, corresponding 1 feedback bits of each descending sub frame; When descending sub-frame number is 2 time, corresponding 2 feedback bits of each descending sub frame; When descending sub-frame number is 1 time, corresponding 4 feedback bits of descending sub frame; When descending sub-frame number is 3 time, corresponding 2 feedback bits of descending sub frame, corresponding 1 feedback bits of another one descending sub frame, now, the descending sub frame of corresponding 2 feedback bits is first descending sub frame or last descending sub frame in sub-frame of uplink correspondence configuration window.Wherein, descending sub frame quantity is descending sub frame quantity corresponding in sub-frame of uplink correspondence configuration window;

UE can determine the quantity of the PDSCH that base station configures on each descending sub frame according to the DAI information received therefore, UE is in conjunction with above-mentioned DAI information and the quantity having the PDSCH of PDCCH that detects on descending sub frame i the confirmation that the reception condition for PDSCH each in each descending sub frame is fed back can be determined, that is: when time, illustrate that UE does not detect the PDSCH of PDCCH on descending sub frame i, then the confirmation fed back for the reception condition of each PDSCH in this descending sub frame i is all NACK; When time, illustrate that UE detects on descending sub frame i have the number of the PDSCH of PDCCH from high-rise for the number of its PDSCH configured different, then the confirmation fed back for the reception condition of each PDSCH in this descending sub frame i is all NACK; When time, illustrate that UE detects on descending sub frame i have the number of the PDSCH of PDCCH with high-rise for the number of its PDSCH configured identical, then can feed back according to the bit number be assigned with according to this descending sub frame i the actual reception condition of each PDSCH.

Such as 1: one sub-frame of uplink correspondence configuration window is X descending sub frame, and each descending sub frame is configured with Y community, the transmission block quantity that on descending sub frame i, allocating cell i transmits is Z _{i, j}, wherein, X can be that 1,2,3,4,9, Y can 1,2,3,4,5, Z _{i, j}can be 1,2;

Work as X=2, during Y=5, suppose, base station scheduled the PDSCH that 3 have PDCCH on first descending sub frame, and second descending sub frame scheduled the PDSCH that 2 have PDCCH;

Corresponding two feedback bits of each descending sub frame;

When UE does not detect the PDSCH of PDCCH on second descending sub frame, corresponding feedback bits is NACK, NACK.According to detecting DAI on first descending sub frame, UE determines that base station sends to the PDSCH quantity of oneself to be 3 on first descending sub frame; When the PDSCH quantity that UE detects PDCCH on first descending sub frame is 2, corresponding feedback bits is NACK, NACK; Now, the k bit feedback information that UE sends is NACK, NACK, NACK, NACK;

When UE detects that on first descending sub frame the PDSCH quantity of PDCCH is 3, corresponding ACK/NACK information is ACK, NACK, during ACK, three ACK, NACK, ACK are divided into two groups, wherein, first ACK/NACK information and the 3rd ACK/NACK information are divided into one group, and second ACK/NACK information is divided into one group, the interior and operation according to group, then corresponding feedback bits is ACK, NACK; Now, the k bit feedback information that UE sends is ACK, NACK, NACK, NACK;

Such as 2: one sub-frame of uplink correspondence configuration windows are X descending sub frame, and each descending sub frame is configured with Y community, the transmission block quantity that on descending sub frame i, allocating cell j transmits is Z _{i, j}, wherein, X can be that 1,2,3,4,9, Y can 1,2,3,4,5, Z _{i, j}can be 1,2;

Work as X=3, during Y=5, suppose, base station scheduled the PDSCH that 3 have PDCCH on first descending sub frame, and second descending sub frame scheduled the PDSCH that 2 have PDCCH, and the 3rd descending sub frame scheduled the PDSCH that 5 have PDCCH;

3rd corresponding 2 feedback bits of descending sub frame, corresponding 1 bit feedback of all the other subframes;

When UE does not detect the PDSCH of PDCCH on second descending sub frame, corresponding feedback bits is NACK;

According to detecting DAI on first descending sub frame, UE determines that base station sends to the PDSCH quantity of oneself to be 3 on first descending sub frame; When the PDSCH quantity that UE detects PDCCH on first descending sub frame is 2, corresponding feedback bits is NACK;

When UE detects that the PDSCH quantity of PDCCH is 5 on the 3rd descending sub frame, corresponding ACK/NACK information is ACK, ACK, when NACK, ACK, NACK, described 5 ACK/NACK information are divided into two groups, wherein, first ACK/NACK information and the 3rd ACK/NACK information, the 5th ACK/NACK information is divided into one group, second ACK/NACK information and the 4th ACK/NACK information are divided into one group, interior and the operation according to group, then corresponding feedback bits is NACK, ACK;

Now, the k bit that UE sends is NACK, NACK, NACK, ACK;

Application example 2

Under PUCCH Format 3 pattern:

Under carrier aggregation scene, according to uplink-downlink configuration information and the DAI information that detects, UE merges into k bit by needing the ACK/NACK information of feedback to carry out ' with operation ', and then send k bit information after described merging, wherein, k is positive integer;

DAI definition 1

Work as X=4, during Y=2, suppose, base station scheduled the PDSCH that 1 has PDCCH on first descending sub frame, and DAI is 01, DAI value is 1, second descending sub frame scheduled the PDSCH that 2 have PDCCH, and DAI is 11, DAI value is 3,3rd descending sub frame scheduled the PDSCH that 2 have PDCCH, and DAI is 01, DAI value is 5,4th descending sub frame scheduled the PDSCH that 1 has PDCCH, and DAI is 1,0, DAI value is 6, as shown in Figure 6.

DAI definition 2

Work as X=4, during Y=2, suppose, base station scheduled the PDSCH that 2 have PDCCH on first descending sub frame, and DAI is 10, DAI value is 2, second descending sub frame scheduled the PDSCH that 2 have PDCCH, and DAI is 10, DAI value is 2,3rd descending sub frame scheduled the PDSCH that 1 has PDCCH, and DAI is 01, DAI value is 1,4th descending sub frame scheduled the PDSCH that 2 have PDCCH, DAI is 10, DAI value is 2, as shown in Figure 7.

For the distribution of feedback bits quantity, if k=10, when descending sub-frame number is 4 time, two corresponding 3 feedback bits of descending sub frame, corresponding 2 feedback bits of two other descending sub frame, now, the descending sub frame of corresponding 3 feedback bits is first and second descending sub frame in sub-frame of uplink correspondence configuration window, or is the 3rd and the 4th descending sub frame; When descending sub-frame number is 3 time, corresponding 4 feedback bits of descending sub frame, corresponding 3 feedback bits of two other descending sub frame, now, the descending sub frame of corresponding 4 feedback bits is first descending sub frame or the 3rd descending sub frame in sub-frame of uplink correspondence configuration window; When descending sub-frame number is 2 time, corresponding 5 feedback bits of each descending sub frame; When descending sub-frame number is 1 time, corresponding 10 feedback bits of descending sub frame.Wherein, described descending sub frame quantity is descending sub frame quantity corresponding in sub-frame of uplink correspondence configuration window;

For the computational methods of feedback information corresponding to each descending sub frame, lower example is used to be described.

Example 1: one sub-frame of uplink correspondence configuration window is X descending sub frame, and each descending sub frame is configured with Y community, the transmission block quantity that on descending sub frame i, allocating cell j transmits is Z _{i, j}, wherein, X can be that 1,2,3,4,9, Y can 1,2,3,4,5, Z _{i, j}can be 1,2;

Then can be each descending sub frame and distribute 5 feedback bits;

When UE does not detect the PDSCH of PDCCH on second descending sub frame, corresponding feedback bits is NACK, NACK, NACK, NACK, NACK;

UE according to detect on first descending sub frame DAI determine that base station sends to the PDSCH quantity of oneself to be 3 on first descending sub frame time, if when PDSCH quantity PDCCH being detected on first descending sub frame is 2, corresponding feedback bits is NACK, NACK; Now, the k bit that UE sends is NACK, NACK, NACK, NACK, NACK, NACK, NACK, NACK, NACK, NACK; If detect on first descending sub frame, the PDSCH quantity of PDCCH is 3, corresponding ACK/NACK information is ACK, when NACK, ACK, by three ACK, NACK, ACK is divided into five groups, wherein, the 4th group and the 5th group do not comprise ACK/NACK information, then the 4th group and the 5th group of corresponding ACK/NACK information are NACK, NACK; The feedback bits that first descending sub frame is corresponding is ACK, NACK, ACK, NACK, NACK; Now, the k bit feedback information that UE sends is ACK, NACK, ACK, NACK, NACK, NACK, NACK, NACK, NACK, NACK.

Example 2: one sub-frame of uplink correspondence configuration windows are X descending sub frame, and each descending sub frame is configured with Y community, the transmission block quantity that on descending sub frame i, allocating cell j transmits is Z _{i, j}, wherein, X can be that 1,2,3,4,9, Y can 1,2,3,4,5, Z _{i, j}can be 1,2;

Being that the 3rd descending sub frame distributes four feedback bits, is all the other each sub-frame allocation three feedback bits;

When UE does not detect the PDSCH of PDCCH on second descending sub frame, therefore corresponding feedback bits is NACK, NACK, NACK;

When UE according to detect on first descending sub frame DAI determine that base station sends to the PDSCH quantity of oneself to be 3 on first descending sub frame time, if when UE detects that on first descending sub frame the PDSCH quantity of PDCCH is 2, corresponding feedback bits is NACK, NACK, NACK; If UE detects that the PDSCH quantity of PDCCH is 5 on the 3rd descending sub frame, corresponding ACK/NACK information is ACK, ACK, when NACK, ACK, ACK, then these 5 ACK/NACK information are divided into four groups, wherein, first ACK/NACK information and the 5th ACK/NACK information are divided into one group, each one group of residue ACK/NACK information, according to group and operation, then corresponding feedback bits is ACK, ACK, NACK, ACK;

Now, the k bit that UE sends is NACK, NACK, NACK, NACK, NACK, NACK, ACK, ACK, NACK, ACK.

Example 3: one sub-frame of uplink correspondence configuration windows are X descending sub frame, and each descending sub frame is configured with Y community, the transmission block quantity that on descending sub frame i, allocating cell j transmits is Z _{i, j}, wherein, X can be that 1,2,3,4,9, Y can 1,2,3,4,5, Z _{i, j}can be 1,2;

Work as X=4, during Y=5, suppose, base station scheduled the PDSCH that 5 have PDCCH on first descending sub frame, second descending sub frame scheduled the PDSCH that 2 have PDCCH, 3rd descending sub frame scheduled the PDSCH that 5 have PDCCH, the 4th descending sub frame scheduled the PDSCH that 5 have PDCCH;

Can be the 3rd and the 4th descending sub frame distributes three feedback bits respectively, for all the other subframes distribute two feedback bits respectively.

When UE does not detect the PDSCH of PDCCH on the 3rd descending sub frame, corresponding feedback bits is NACK, NACK, NACK;

When according to the DAI detected on second descending sub frame, UE determines that base station sends to the PDSCH quantity of oneself to be 2 on first descending sub frame, if when the PDSCH quantity that UE detects PDCCH on first descending sub frame is 1, corresponding feedback bits is NACK, NACK;

According to the DAI detected on first descending sub frame, UE determines that base station sends to the PDSCH quantity of oneself to be 5 on first descending sub frame; When UE detects that on first descending sub frame the PDSCH quantity of PDCCH is 5, and corresponding ACK/NACK information is ACK, ACK, NACK, when ACK, ACK, described 5 ACK/NACK information are divided into two groups, wherein, first ACK/NACK information, the 3rd ACK/NACK information and the 5th ACK/NACK information are divided into one group, each one group of ACK/NACK information will be remained, the interior and operation according to group, the corresponding feedback bits then obtained is NACK, ACK;

When UE detects that the PDSCH quantity of PDCCH is 5 on the 4th descending sub frame, corresponding ACK/ACK information is ACK, ACK, NACK, ACK, during ACK, described 5 ACK/NACK information are divided into three groups, wherein, first ACK/NACK information and the 4th ACK/NACK information are divided into one group, second ACK/NACK information and the 5th ACK/NACK information are divided into one group, be one group by the 3rd ACK/NACK information, according in group with operation, then corresponding feedback bits is ACK, ACK, NACK.

Now, the k bit that UE sends is NACK, ACK, NACK, NACK, NACK, NACK, NACK, ACK, ACK, NACK;

The all or part of step that one of ordinary skill in the art will appreciate that in said method is carried out instruction related hardware by program and is completed, and described program can be stored in computer-readable recording medium, as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can use one or more integrated circuit to realize.Correspondingly, each module/unit in above-described embodiment can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.

Claims

1. a sending method for confirmation, is applied in the system adopting carrier aggregation technology, comprises:

For the reception condition of the Physical Downlink Shared Channel PDSCH in described each descending sub frame, respectively the feedback acknowledgment information of each descending sub frame is carried out and operation, obtain the confirmation of each descending sub frame; Wherein, the bit number shared by the confirmation of each descending sub frame is described subscriber equipment is the bit number that it distributes, and the feedback acknowledgment information of described descending sub frame is the feedback information of each PDSCH received in described descending sub frame;

2. the method for claim 1, is characterized in that:

Described subscriber equipment specifically comprises according to the bit number of uplink-downlink configuration information shared by the confirmation of the allocation of downlink subframe respectively of each descending sub frame in configuration window corresponding to sub-frame of uplink: described subscriber equipment is according to the quantity n of the descending sub frame comprised in configuration window corresponding to described sub-frame of uplink, be first that wherein kmodn descending sub frame distributes, the bit number that each descending sub frame is assigned with is and then be the individual descending sub frame distribution of residue n-(kmodn), the bit number that each descending sub frame is assigned with is

3. method as claimed in claim 2, is characterized in that:

The bit number be assigned with is the each descending sub frame of kmodn be arranged in front kmodn descending sub frame of configuration window corresponding to described sub-frame of uplink or rear kmodn descending sub frame.

4. the method for claim 1, is characterized in that:

The feedback information of the PDSCH of configuration in described each descending sub frame determined by described subscriber equipment according to the descending assignment information DAI information received;

Wherein, described DAI information is for representing the sum having the PDSCH of PDCCH that base station is dispatched on the descending sub frame i of this DAI place, and the DAI value having the PDSCH of physical downlink control channel PDCCH corresponding that same descending sub frame distributes is identical;

5. method as claimed in claim 4, is characterized in that:

Described DAI information is 2 Bit datas, and transmits in the descending control information format DCI Format representing down dispatch information.

6. method as claimed in claim 4, is characterized in that:

7. method as claimed in claim 6, is characterized in that:

8. method as claimed in claim 7, is characterized in that:

9. method as claimed in claim 7, is characterized in that:

10. method as claimed in claim 7, is characterized in that:

11. methods as described in claim 7 or 10, is characterized in that:

12. the method for claim 1, is characterized in that:

13. 1 kinds of user terminals, are applied in the system adopting carrier aggregation technology, comprise: bit distribution module, message processing module and information sending module;

Message processing module is used for the reception condition for the Physical Downlink Shared Channel PDSCH in described each descending sub frame, carries out and operation respectively, obtain the confirmation of each descending sub frame to the feedback acknowledgment information of each descending sub frame; Wherein, the bit number shared by the confirmation of each descending sub frame is described bit distribution module is the bit number that it distributes, and the feedback acknowledgment information of described descending sub frame is the feedback information of each PDSCH received in described descending sub frame;

14. user terminals as claimed in claim 13, is characterized in that:

Described bit distribution module is used for specifically comprising according to the bit number of uplink-downlink configuration information shared by the confirmation of the allocation of downlink subframe respectively of each descending sub frame in configuration window corresponding to sub-frame of uplink: described bit distribution module is used for the quantity n according to the descending sub frame comprised in configuration window corresponding to described sub-frame of uplink, be first that wherein kmodn descending sub frame distributes, the bit number that each descending sub frame is assigned with is and then be the individual descending sub frame distribution of residue n-(kmodn), the bit number that each descending sub frame is assigned with is

15. user terminals as claimed in claim 13, is characterized in that:

Described message processing module is used for the feedback information of the PDSCH determining configuration in described each descending sub frame according to the descending assignment information DAI information received;

16. user terminals as claimed in claim 15, is characterized in that:

Described DAI information is 2 Bit datas, and described message processing module is used for representing that the descending control information format DCI Format of down dispatch information receives described DAI by receiving.

17. user terminals as claimed in claim 15, is characterized in that:

18. user terminals as claimed in claim 17, is characterized in that:

19. user terminals as claimed in claim 18, is characterized in that:

20. user terminals as claimed in claim 18, is characterized in that:

Described message processing module is used for first the reception condition for each PDSCH in this descending sub frame i being fed back individual ACK/NACK information divides m _igroup specifically comprises: described message processing module is used for for being somebody's turn to do individual ACK/NACK information encoding, described in inciting somebody to action according to number order individual ACK/NACK information is divided into m _igroup, wherein, front modm _ithe ACK/NACK information content that in individual group, often group is assigned with is after the ACK/NACK information content that in individual group, often group is assigned with is or described message processing module is used for for being somebody's turn to do individual ACK/NACK information encoding, described in inciting somebody to action according to number order individual ACK/NACK information is divided into m _igroup, wherein, front the ACK/NACK information content that in individual group, often group is assigned with is after the ACK/NACK information content that in individual group, often group is assigned with is

21. user terminals as claimed in claim 18, is characterized in that: