CN101958775A - Sending method of acknowledgment information and user equipment - Google Patents

Abstract

The invention discloses a sending method of acknowledgment information and user equipment (UE). The method comprises the steps of: detecting downlink distribution information sent by a base station through a PDCCH (Packet Dedicated Control Channel) by the UE; distributing the acknowledge information to be fed back into k groups by the UE according to the downlink distribution information, merging the acknowledge information contained in all the groups into one piece of acknowledge information through operation, wherein k is a natural number; and sending the merged k pieces of acknowledge information by the UE. According to the invention, ACK/NACK (Acknowledgment/Non-Acknowledgement) information can be fed back under a carrier aggregation scene.

Description

The sending method of confirmation and subscriber equipment

Technical field

The present invention relates to the communications field, in particular to a kind of sending method and subscriber equipment of confirmation.

Background technology

Long Term Evolution (LTE, Long Term Evolution) radio frames (radio frame) in the system comprises Frequency Division Duplexing (FDD) (FDD, Frequency Division Duplex) frame structure of pattern and time division duplex (TDD, Time Division Duplex) pattern.Fig. 1 is the frame structure schematic diagram of fdd mode, and the radio frames of 10 milliseconds (ms) is 0.5ms by 20 length, and the time slot (slot) of numbering 0～19 is formed, and it is subframe (subframe) i of 1ms that time slot 2i and 2i+1 form length.Fig. 2 is the frame structure schematic diagram of tdd mode, and the radio frames of a 10ms is longly formed for the field of 5ms (half frame) by two, and a field comprises that 5 length are the subframe of 1ms, and subframe i is defined as 2 and longly is time slot 2i and the 2i+1 of 0.5ms.

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 downstream-to-upstream transfer point cycle 10ms, special subframe only is present in first field.Subframe 0 and subframe 5 and descending pilot frequency time slot (DwPTS, Downlink Pilot Time Slot) always are used for downlink transfer.Uplink pilot time slot (UpPTS, Uplink Pilot Time Slot) and the subframe of closelying follow behind special subframe are exclusively used in uplink.

In the LTE system, Physical Downlink Control Channel (PDCCH, Physical DownlinkControl Channel) is used for bearing downlink control information (DCI, Downlink Control Information), comprise: uplink and downlink schedule information, and uplink power control information.The form of DCI (DCI format) is divided into following several: DCI format 0, DCI format1, 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 (CCE, Control Channel Element) be unit, the size of a CCE is 9 resource element group (REG, Resource Element Group), i.e. 36 resource elements (Resource Element), a PDCCH may take 1,2,4 or 8 CCE.

In the LTE system, in the FDD system, because ascending-descending subframes is one to one, so as Physical Downlink Shared Channel (PDSCH, Physical Downlink Shared Channel) when only comprising a transmission block, UE will feed back the ACK/NACK response message of 1 bit, and when PDSCH comprised two transmission blocks, UE will feed back the ACK/NACK response message of 2 bits.In tdd systems (TDD), because ascending-descending subframes is not one to one, the ACK/NACK response message that is to say a plurality of descending sub frame correspondences need be at the Physical Uplink Control Channel (PUCCH of a sub-frame of uplink, Physical Uplink Control Channel) send on the channel, wherein " bundling window " formed in the set of the descending sub frame of sub-frame of uplink correspondence.The sending method of ACK/NACK response message has two kinds: a kind of is binding method (bundling), the core concept of this method is carrying out logic and operation according to the streams of code words index at the ACK/NACK response message of the transmission block of each descending sub frame correspondence of this sub-frame of uplink feedback, if a descending sub frame has 2 transmission blocks, UE will feed back the ACK/NACK response message of 2 bits, if each subframe has only a transmission block, UE will feed back the ACK/NACK response message of 1 bit; Another kind is that channel is selected (multiplexing with channel selection, be called for short multiplexing) method, the core concept of this method be utilize different modulation symbol on different PUCCH channels and this channel to represent need be at the different feedback states of the descending sub frame of this sub-frame of uplink feedback, if a plurality of transmission blocks are arranged on the descending sub frame, then elder generation carries out the ACK/NACK of a plurality of transmission blocks feedbacks of descending sub frame to carry out the channel selection again behind the logical AND, uses PUCCH format1b to send then.

In order to satisfy (the International Telecommunication Union-Advanced of senior International Telecommunications Union, abbreviate ITU-Advanced as) requirement, senior Long Term Evolution (Long Term Evolution Advanced as the evolution standard of LTE, abbreviating LTE-A as) system need support bigger system bandwidth (reaching as high as 100MHz), and need the existing standard of backward compatibility LTE.On the basis of prior LTE system, the bandwidth of LTE system can be merged and obtain bigger bandwidth, this technology is called carrier aggregation (Carrier Aggregation, abbreviate CA as) technology, the availability of frequency spectrum, alleviation frequency spectrum resource that this technology can improve the IMT-Advance system are in short supply, and then optimize the utilization of frequency spectrum resource.The LTE system bandwidth of carrier aggregation can be regarded component carrier frequency (CC, Component Carrier) as, and each component carrier frequency also can be called a sub-district (Cell), and just a frequency spectrum can be polymerized by n component carrier frequency (Cell).Resource for a R10 subscriber equipment (UE, User Equipment) is that one of them sub-district is called main plot (Primary cell) by n sub-district (component carrier frequency) formation of frequency domain, and all the other sub-districts are called auxilliary sub-district (Secondary cell).

In tdd systems (TDD), the corresponding a plurality of descending sub frames of sub-frame of uplink meeting, and, n sub-district arranged on each descending sub frame, as described in Figure 3, can there be a transport block transmission each sub-district according to the transmission mode difference, two transport block transmission also can be arranged, therefore, in the LTE-A system, the ACK/NACK information content that UE need feed back is with respect to the increase at double of LTE system, but at present also not about feeding back ACK/nack message scheme how under carrier aggregation scene, can't effective feedback ACK/NACK information under carrier aggregation scene thereby make.

Summary of the invention

Main purpose of the present invention is to provide a kind of sending method and subscriber equipment of confirmation, with solve at least in the prior art can't be under carrier aggregation scene the effective problem of feedback acknowledgment information.

According to an aspect of the present invention, provide a kind of sending method of confirmation, having comprised: the descending assignment information that the UE base stations detected sends by PDCCH; The affirmation information that UE feeds back needs according to described descending assignment information is divided into the k group, and by with operation the affirmation information that comprises in each group being merged into a confirmation, wherein, k is a natural number; UE sends k confirmation after merging.

According to a further aspect in the invention, provide a kind of UE, having comprised: detection module is used for the DAI that base stations detected sends by physical downlink control channel PDCCH; Grouping module is used for being divided into the k group according to the affirmation information that described DAI feeds back needs; Merge module, be used for by the affirmation information that each group comprises being merged into a confirmation with operation; Sending module is used to send k confirmation after the merging.

By the present invention, descending assignment information (the DAI that subscriber equipment sends according to the base station, Downlink Assignment Index) the affirmation information (comprising ACK and NACK) that will need to feed back is divided into groups, and merging sends, thereby can be at feeding back ACK/nack message under the carrier aggregation scene, and, can maximized assurance throughput of system, and reserve the PUCCH resource of feeding back ACK/nack message less as far as possible.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:

Fig. 1 is according to the frame structure schematic diagram in the FDD system of correlation technique;

Fig. 2 is according to the frame structure schematic diagram in the TDD system of correlation technique;

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

Fig. 4 is the flow chart according to the sending method of the affirmation information of the embodiment of the invention;

Fig. 5 is the schematic diagram according to a kind of DAI transmission of the embodiment of the invention;

Fig. 6 is the schematic diagram according to the another kind of DAI transmission of the embodiment of the invention;

Fig. 7 is the schematic diagram according to another DAI transmission of the embodiment of the invention;

Fig. 8 is the schematic diagram according to another DAI transmission of the embodiment of the invention;

Fig. 9 is the schematic diagram according to another DAI transmission of the embodiment of the invention;

Figure 10 is the structural representation according to the subscriber equipment of the embodiment of the invention.

Embodiment

Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.

Need to prove, in embodiments of the present invention:

ACK/NACK ' and operation ': when the ACK/NACK information of carrying out ' with operation ' all was ACK, the result of ' with operation ' was ACK, and when in the ACK/NACK information of carrying out ' with operation ' NACK being arranged, the result of ' with operation ' is NACK;

The corresponding PDSCH who needs feeding back ACK/nack message of the one-component carrier frequency that disposes on descending sub frame, the corresponding PDCCH (i.e. the control information of this PDSCH sends in this PDCCH) of this PDSCH, the corresponding DAI of this PDCCH, the transmission block of this PDSCH correspondence can be one or two, and space in embodiments of the present invention is meant with operation carries out and operation the ACK/NACK information of two corresponding transmission blocks of PDSCH.

Fig. 4 is the flow chart according to the sending method of the affirmation information of the embodiment of the invention, and as shown in Figure 4, this method mainly may further comprise the steps:

Step S402, the descending assignment information (DAI) that the subscriber equipment base stations detected sends by Physical Downlink Control Channel (PDCCH);

For example, this DAI can be illustrated in the corresponding configuration of the sub-frame of uplink window, comprises the sum of the PDSCH that PDCCH is arranged that described DAI place descending sub frame i and all descending sub frames before thereof distribute;

Step S404, the affirmation information that subscriber equipment feeds back needs according to described descending assignment information is divided into the k group, and by with operation the affirmation information that comprises in each group being merged into a confirmation, wherein, k is a natural number;

Wherein, it is the ACK/NACK information of PDSCH in the corresponding configuration of the sub-frame of uplink window that UE needs feedback acknowledgment (ACK/NACK) information, promptly transmits the ACK/NACK information of each transmission block of PDSCH;

For example, subscriber equipment can be divided into one group with the affirmation information of needs feedbacks, also can be divided into 2 groups etc.

When wherein one group is not mapped to ACK/NACK information, this group with operating result be NACK.

Step S406, subscriber equipment sends k confirmation after merging.

For example, when the component carrier frequency (being also referred to as the sub-district) that sends confirmation is principal component carrier wave (sub-district), the PUCCH resource that sends ACK/NACK information is that UE is according to descending sub frame that detects the PDCCH place and the definite PUCCH resource of described PDCCH place CCE index, when this component carrier frequency is when assisting component carrier frequency, PUCCH resource of unified reservation of assistant carrier frequency (or configuration) that UE is given for configuration in the base station, UE adopts this PUCCH resource to send confirmation.

Describe below by specific embodiment.

Embodiment one

In the present embodiment, UE adopts binding (bundling) pattern feedback acknowledgment information.

Under carrier aggregation scene, in embodiments of the present invention, define the signaling of a kind of descending assignment information of expression (DAI), according to detected DAI information, the ACK/NACK information that UE will need to feed back is divided the k group, the ACK/NACK information that comprises in the group is carried out ' with operation ' and merges into an ACK/NACK information, and UE sends k the ACK/NACK information in described merging back, wherein, k is a natural number;

In embodiments of the present invention, to need feeding back ACK/nack message be the ACK/NACK information of PDSCH in the corresponding configuration of sub-frame of uplink window to described UE.

In embodiments of the present invention, wherein:

DAI represents, in the corresponding configuration of sub-frame of uplink window, the sum that comprises the PDSCH that PDCCH is arranged that descending sub frame i all descending sub frames before in described DAI place distribute, and, the DAI value that descending sub frame i goes up the PDSCH correspondence that PDCCH is arranged of distributing is identical, and perhaps, DAI represents that described DAI place descending sub frame i goes up the quantity of the sub-district (PDSCH that PDCCH is promptly arranged) of scheduling, and the DAI value that descending sub frame i goes up the PDSCH correspondence that PDCCH is arranged of distributing is identical.

The DAI value is as shown in table 2:

Table 2DAI value

The DAI signaling	Implication
				0，0	1/5/9/13/17
1，0	2/6/10/14/18
		0，1	3/7/11/15/19
1，1	4/8/12/16/20

In the present embodiment, UE is when sending k confirmation, if described subscriber equipment in the end has the PDSCH of PDCCH correspondence to send on the principal component carrier frequency (sub-district) of a PDSCH subframe that PDCCH arranged, then, described subscriber equipment is determined the PUCCH resource according to the control channel element index that detects the above PDCCH place of principal component carrier frequency of last PDSCH subframe that PDCCH is arranged, and described subscriber equipment sends a described k confirmation on described PUCCH resource; If described subscriber equipment does not in the end have the PDSCH of PDCCH correspondence to send on the principal component carrier frequency (sub-district) of a PDSCH subframe that PDCCH arranged, it is that the PUCCH resource that described subscriber equipment is reserved (configuration) sends a described k confirmation that described subscriber equipment uses the base station.

Perhaps, also can directly to use the base station be that the PUCCH resource that described subscriber equipment is reserved (configuration) sends a described k confirmation to described UE.

Method 1

When k equals 1, UE uses PUCCH Format 1b to send 2 bit feedback information b0 and b1, corresponding four kinds of states are: the descending sub frame that the descending sub frame that nack message, ACK information and UE receive the PDSCH of PDCCH is 1 or 4, ACK information and UE receive the PDSCH of PDCCH is 2, and the descending sub frame that ACK information and UE receive the PDSCH of PDCCH is 3; Four kinds of states and four kinds concern that one-to-one relationship can combination in any, as table 3 provide a kind of may.

The described 2 bit feedback information implications of table 3

b0， b1	Implication
				0，0	NACK
1，1	Descending sub frame quantity is 1/4 in the detected configuration window of ACK and UE
		1，0	Descending sub frame quantity is 2 in the detected configuration window of ACK and UE
0，1	Descending sub frame quantity is 3 in the detected configuration window of ACK and UE

In embodiments of the present invention, whether UE can also the feeding back downlink subframe has and loses when feedback acknowledgment information, specifically can realize according to following steps:

Step 1, UE is according to detecting the sum that the definite base station of DAI value on last subframe sends to the PDSCH that PDCCH is arranged oneself

Perhaps, UE is according to detecting the sum that the definite base station of DAI value on each descending sub frame sends to the PDSCH that PDCCH is arranged oneself

Step 2 detects the total U of the PDSCH of PDCCH as UE oneself _DAISmaller or equal to or be not equal to The time, UE feeds back NACK, and perhaps, UE does not feed back PUCCH, and this state is called the DTX state, just has descending sub frame to lose;

Step 3 detects the total U of the PDSCH of PDCCH as UE oneself _DAIEqual

The time, UE is divided into one group with all ACK/NACK information to carry out and operation, will feed back with operating result.

Particularly, suppose that UE descending sub frame d goes up DAI, then UE can according to detect before the descending sub frame d DAI and on descending sub frame d the PDSCH quantity of the detected PDCCH of being assigned determine detected DAI value, perhaps, described subscriber equipment according on the descending sub frame i detected the PDSCH quantity of PDCCH is arranged and on descending sub frame i detected descending assignment information, determine the implication of detected descending assignment information on descending sub frame i.

Example 1

The corresponding configuration of a sub-frame of uplink window is an X descending sub frame, has disposed Y sub-district on each descending sub frame, and the transmission block quantity that descending sub frame i goes up allocating cell j transmission is Z _{I, j}, wherein, X can be 1,2,3,4,9, Y can 1,2,3,4,5, Z _{I, j}Can be 1,2;

DAI represents, in the corresponding configuration of sub-frame of uplink window, comprises the sum of the PDSCH that PDCCH is arranged that descending sub frame i all descending sub frames before in described DAI place distribute, and the DAI value that descending sub frame i goes up the PDSCH correspondence that PDCCH is arranged of distributing is identical, works as X=4, during Y=5, suppose, base station scheduling dispatched a PDSCH, the sub-district 0 (CC0) of first descending sub frame on each descending sub frame in the corresponding configuration of sub-frame of uplink window, the sub-district 1 (CC1) of second descending sub frame, the sub-district 2 (CC2) of the 3rd descending sub frame, the sub-district 3 (CC3) of the 4th descending sub frame, the DAI of first subframe is 0 accordingly, 0, aggregate-value is that the DAI of 1, the second subframe is 1,0, aggregate-value is 2, the DAI of the 3rd subframe is 0,1, and aggregate-value is 3, the DAI of the 4th subframe is 1,1, aggregate-value is 4, as shown in Figure 6;

When the PDSCH that detects first three descending sub frame as UE counts, UE determines that according to detected DAI value the PDSCH quantity that the base station sends is 3, at this moment, UE does not know to have taken place descending sub frame and loses, when the ACK/NACK of described three descending sub frames information all is ACK, after operation, the UE feeding back ACK uses PUCCH format 1b transmission dibit information (1,1), at this moment, PUCCH is detected in the base station on respective resources, acquired information (1,1), judge: it all is ACK that UE detects first three subframe, and last subframe is lost.

Example 2

The corresponding configuration of a sub-frame of uplink window is an X descending sub frame, has disposed Y sub-district on each descending sub frame, and the transmission block quantity that descending sub frame i goes up allocating cell j transmission is Z _{I, j}, wherein, X can be 1,2,3,4,9, Y can 1,2,3,4,5, Z _{I, j}Can be 1,2;

DAI represents the PDSCH quantity that PDCCH is arranged of base station scheduling on the descending sub frame of DAI place, and the DAI value that descending sub frame i goes up the PDSCH correspondence that PDCCH is arranged of distributing is identical, works as X=4, during Y=5, suppose, base station scheduling all PDSCH in the corresponding configuration of sub-frame of uplink window, the DAI of first subframe is 0 accordingly, 0, aggregate-value is that the DAI of 5, the second subframes is 0,0, aggregate-value is 5, the DAI of the 3rd subframe is 0,0, and aggregate-value is 5, the DAI of the 4th subframe is 0,0, aggregate-value is 5, as shown in Figure 8;

When the PDSCH quantity that detects PDCCH as UE was 17, UE determined that according to detected DAI value the PDSCH quantity that the base station sends is 20, at this moment, UE knows that descending sub frame has taken place to be lost, and UE feeds back NACK, uses PUCCH format 1b transmission dibit information (0,0), perhaps, UE is feeding back ACK/nack message not, does not send PUCCH, at this moment, PUCCH is detected in the base station on respective resources, do not detect, and can know that also UE descending sub frame takes place loses;

Method 2

The quantity of supposing descending sub frame in the described configuration window is S, and then, k is S, and affirmation information corresponding on each described descending sub frame is divided into one group;

Described UE determines that according to the value of detected DAI from described configuration window described base station sends to the sum of the described PDSCH of described UE on descending sub frame i

Described UE judges that it detects the quantity U of described PDSCH on descending sub frame i _DAIWhether be not equal to

Perhaps U _DAIWhether less than

If then described UE determines that needing the described confirmation of feedback is 0 for the ACK information content, perhaps, the affirmation information after this group and the operation is wrong responses NACK, and perhaps, described UE does not feed back Physical Uplink Control Channel PUCCH; Otherwise described UE will be divided into one group in the affirmation information on the descending sub frame i to carry out and operation.

Particularly, suppose that UE descending sub frame d goes up DAI, then UE can according to detect before the descending sub frame d DAI and on descending sub frame d the PDSCH quantity of the detected PDCCH of being assigned determine detected DAI value, perhaps, described subscriber equipment according on the descending sub frame i detected the PDSCH quantity of PDCCH is arranged and on descending sub frame i detected descending assignment information, determine the implication of detected descending assignment information on descending sub frame i.

Wherein, in embodiments of the present invention, the feedback information that UE sends can be defined as following two kinds of implications:

First kind of definition

Described UE uses PUCCH form 1b to send 2 bit feedback information, the respectively corresponding following four kinds of states of each value of this feedback information: the ACK information content is 0, the ACK information content is 1 or 4, the ACK information content is 2, the ACK information content is 3, wherein, the quantity of the described ACK information of feedback information indication for the affirmation information of each group carry out with operation after ACK information.

Wherein, four kinds of values are corresponding one by one with above-mentioned four kinds of states, and concrete corresponding relation can combination in any, as table 4 provide a kind of may.

The described 2 bit feedback information implications of table 4

b0，b1

ACK quantity

0，0	0 (having PDSCH to lose)
		1，1	1/4
1，0	2
		0，1	3

Second kind of definition

Described UE uses PUCCH form 1b to send 2 bit feedback information, the respectively corresponding following four kinds of states of each value of this feedback information: the ACK information content is 1, the ACK information content is 4, the ACK information content is 2, the ACK information content is 3; When the ACK information content is 0, do not send PUCCH, wherein, the quantity of the described ACK information of feedback information indication for each group acknowledge information carry out with operation after the quantity of ACK information, if the described ACK information content of feedback information indication is a, then this feedback information be illustrated in preceding a descending sub frame in b the descending sub frame that described PDSCH is arranged in the described configuration window with operating result all be ACK.

Wherein, four values of feedback information are corresponding one by one with above-mentioned four kinds of states, and concrete corresponding relation can combination in any, as table 5 provide a kind of may.

The described 2 bit feedback information implications of table 5

b0， b1	ACK quantity
				0，0	1
0，1	2
		1，0	3
1，1	4

Example 3

Described UE uses PUCCH form 1b to send 2 bit feedback information, the respectively corresponding following four kinds of states of each value: the ACK information content is 0, the ACK information content is 1 or 4, the ACK information content is 2, the ACK information content is 3, wherein, the quantity of described ACK information for the affirmation information of each group carry out with operation after the quantity of ACK information.

The corresponding configuration of a sub-frame of uplink window is an X descending sub frame, has disposed Y sub-district on each descending sub frame, and the transmission block quantity that descending sub frame i goes up allocating cell j transmission is Z _{I, j}, wherein, X can be 1,2,3,4,9, Y can 1,2,3,4,5, Z _{I, j}Can be 1,2;

DAI represents the PDSCH quantity that PDCCH is arranged of base station scheduling on the descending sub frame of DAI place, and, the DAI value that descending sub frame i goes up the PDSCH correspondence that PDCCH is arranged of distributing is identical, work as X=4, during Y=5, suppose, base station scheduling CC1 on first descending sub frame in the corresponding configuration of sub-frame of uplink window, CC2, CC4 has dispatched the PDSCH that PDCCH is arranged, CC0 on second descending sub frame, CC2, CC3, CC4 has dispatched the PDSCH that PDCCH is arranged, CC0 on the 3rd descending sub frame, CC1 has dispatched the PDSCH that PDCCH is arranged, CC0 on the 4th descending sub frame, CC1, CC2, CC3, CC4 has dispatched the PDSCH that PDCCH is arranged, the DAI of each descending sub frame is respectively 3,4, and 2,5, as shown in Figure 9.

Below by two concrete application above-mentioned example 3 is described.

Use one

When the PDSCH quantity that detects first descending sub frame and the 3rd descending sub frame as UE is 3 and 2, UE determines that according to detected DAI value the PDSCH quantity that the base station sends is respectively 3 and 2 on first descending sub frame and the 3rd descending sub frame, at this moment, UE does not know that second descending sub frame and the 4th descending sub frame lose, when the ACK/NACK of described two descending sub frames information all is ACK, after operation, UE feeding back ACK quantity is 2;

UE uses PUCCH format 1b transmission dibit information (1,0), be illustrated in 2 descending sub frames are arranged in the described configuration window with operating result all be ACK.

PUCCH is detected in the base station on respective resources, acquired information (1,0) is judged: it all is ACK that UE has detected two subframes, and then, two descending sub frames are arranged is NACK or lose, and can't determine that concrete which descending sub frame loses, and needs all to retransmit.

Use two

The PDSCH quantity that detects first descending sub frame and the 3rd descending sub frame as UE is 2 and 2, and, when the ACK/NACK information of described detected two descending sub frames all is ACK, UE determines that according to detected DAI value the PDSCH quantity that the base station sends is respectively 3 and 2 on first descending sub frame and the 3rd descending sub frame, at this moment, UE knows that first descending sub frame has PDSCH to lose, UE determines that needing the described confirmation of feedback is 0 for the ACK information content, perhaps, affirmation information after first descending sub frame and the operation is wrong responses NACK, this moment, UE feeding back ACK information content was 1, and perhaps, described UE does not feed back Physical Uplink Control Channel PUCCH;

Example 4

Described UE uses PUCCH form 1b to send 2 bit feedback information, the respectively corresponding following four kinds of states of each value: the ACK information content is 1, the ACK information content is 4, the ACK information content is 2, the ACK information content is 3; When the ACK information content is 0, do not send PUCCH, wherein, the ACK information after described ACK information is organized and operated for each; Described ACK information content is a, before being illustrated in b the descending sub frame that described PDSCH is arranged in the described configuration window a descending sub frame with operating result all be ACK.

The corresponding configuration of a sub-frame of uplink window is an X descending sub frame, has disposed Y sub-district on each descending sub frame, and the transmission block quantity that descending sub frame i goes up allocating cell j transmission is Z _{I, j}, wherein, X can be 1,2,3,4,9, Y can 1,2,3,4,5, Z _{I, j}Can be 1,2;

DAI represents, in the corresponding configuration of sub-frame of uplink window, comprises the sum of the PDSCH that PDCCH is arranged that descending sub frame i all descending sub frames before in described DAI place distribute, and the DAI value that descending sub frame i goes up the PDSCH correspondence that PDCCH is arranged of distributing is identical, works as X=4, during Y=5, suppose, base station scheduling all PDSCH in the corresponding configuration of sub-frame of uplink window, the DAI of first subframe is 0 accordingly, 0, the DAI that aggregate-value adds up to 5, the second subframes is 1,0, aggregate-value adds up to 10, the DAI of the 3rd subframe is 0,1, and aggregate-value adds up to 15, the DAI of the 4th subframe is 1,1, aggregate-value adds up to 20, as shown in Figure 5.

Below by two concrete application above-mentioned example 4 is described.

Use one

When the PDSCH quantity that detects first descending sub frame and the 3rd descending sub frame as UE is 5 and 4, UE determines that according to detected DAI value the PDSCH quantity that the base station sends is respectively 5 and 5 on first descending sub frame and the 3rd descending sub frame, at this moment, UE can know that second descending sub frame all lose, the 3rd descending sub frame partial loss, but do not know that the 4th descending sub frame lose, when the ACK/NACK of described two descending sub frames information all is ACK, UE determines that the affirmation information after second descending sub frame and the 3rd descending sub frame and the operation is wrong responses NACK, then, the feedback information of first three descending sub frame correspondence is ACK, NACK, NACK, UE feeding back ACK quantity is 1;

UE uses PUCCH format 1b transmission dibit information (0,0), be illustrated in preceding 1 descending sub frame in the described configuration window with operating result all be ACK.

PUCCH is detected in the base station on respective resources, acquired information (0,0) is judged: the feedback information that UE detects first subframe all is ACK, and the feedback information of three subframes of residue is NACK or loses, and retransmits the PDSCH of back three subframes;

Use two

The PDSCH quantity that detects four descending sub frames as UE is 4 and 5,5,5 o'clock, UE determines that according to detected DAI value the PDSCH quantity that the base station sends is respectively 5 on four descending sub frames, 5,5,5, at this moment, UE can know first descending sub frame partial loss, and all the other subframes do not have PDSCH to lose, when the ACK/NACK of described four descending sub frames information all is ACK, affirmation information after UE determines first descending sub frame and operates is wrong responses NACK, then, the feedback information of four or three descending sub frame correspondences is NACK, ACK, ACK, ACK, at this moment, ACK quantity is 0, be first descending sub frame corresponding with operation after affirmation information be NACK, UE does not send PUCCH;

PUCCH is detected in the base station on respective resources, do not detect PUCCH, judges: the affirmation information after first descending sub frame correspondence and the operation is NACK, and the feedback information of three subframes of residue is uncertain, retransmits all PDSCH;

The above-mentioned confirmation that the embodiment of the invention one provides can be applied in following scene and feed back:

Application scenarios 1 uses PUCCH Format 1b transferring ACK/nack message;

Application scenarios 2 transmits when dispatch request (SR, Scheduling Request) and ACK/NACK information of same, uses the PUCCH resource transmission 2 bit ACK/nack message of SR correspondence;

Application scenarios 3, CQI (Channel Quality Indicator, the channel quality indication)/PMI (Precoding Matrix Indicator, pre-coding matrix indication) and transmit during the ACK/NACK information of same, use the PUCCH Format 2b that transmits CQI/PMI to transmit 2 bit ACK/nack message;

Application scenarios 4 transmits when RI (Rank Indication, order indication) and ACK/NACK information of same, uses PUCCH Format 2b to transmit 2 bit ACK/nack message;

Embodiment two

In embodiments of the present invention, UE adopts bundling pattern feedback acknowledgment information.

In embodiments of the present invention, defining the corresponding configuration of sub-frame of uplink window is X descending sub frame, has disposed Y sub-district on each descending sub frame, and the transmission block quantity of each allocating cell transmission is Z, and wherein, X can be 1,2,3,4,9, Y can 1,2,3,4,5, Z can be 1,2;

The aggregate-value of the PDSCH that PDCCH is arranged that the DAI information representation distributes in the corresponding configuration of sub-frame of uplink window;

Described DAI is according to first frequency domain time domain accumulative total again, and perhaps, described DAI is according to first frequency domain time domain accumulative total and earlier auxilliary sub-district main plot accumulative total more again;

Described DAI information is 2 bits, expression 1,2,3,4, and corresponding to 00,01,10,11, described DAI information is transmission in the descending control information format (DCI Format) of expression down dispatch information, described aggregate-value mould 4 is obtained the DAI information of transmission;

When the detected DAI of UE was 1, if occur for the first time, then, corresponding aggregate-value was If be to occur for the second time,

If be appearance for the third time, then

If be the 4th appearance, then

If be the 5th appearance, then

When detected DAI is 2, if be respectively the 1/2/3/4/5th appearance, then its When detected DAI is 3, if be respectively the 1/2/3/4/5th appearance, then its

When detected DAI is 4, in like manner, if be respectively the 1/2/3/4/5th appearance, then its

Example 1

The corresponding configuration of a sub-frame of uplink window is an X descending sub frame, has disposed Y sub-district on each descending sub frame, and the transmission block quantity that descending sub frame i goes up allocating cell j transmission is Z _{I, j}, wherein, X can be 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, add up the main plot the more auxilliary sub-district of time domain accumulative total and elder generation again according to first frequency domain;

Suppose, base station scheduling all PDSCH in the corresponding configuration of sub-frame of uplink window, then, DAI numbers as shown in Figure 7;

UE detects PDCCH and obtains the ACK/NACK information of PDSCH and do not have the ACK/NACK information of PDSCH of the SPS of PDCCH to divide into groups and operation obtains 2 bit ACK/nack message in the corresponding configuration of sub-frame of uplink window, use PUCCH 1b to transmit this 2 bit ACK/nack message;

ACK/NACK information to two transmission blocks of a PDSCH correspondence is carried out ' with operation ' (space and operation), to the ACK/NACK information after ' with operation ', divide into groups ' with operation ' again;

For example: the corresponding configuration of a sub-frame of uplink window is 4 descending sub frames, 2 sub-districts have been disposed on each descending sub frame, the maximum transmitted number of blocks of each allocating cell transmission is 2, suppose, UE detects PDCCH on each sub-district that disposes on each descending sub frame, and, the respective transmissions number of blocks all is 2, then, the ACK/NACK information content that UE need feed back is 4*2*2=16, UE earlier carries out ' with operation ' (space and operation) to the ACK/NACK information of two transmission block correspondences of each sub-district of disposing on each descending sub frame, the ACK/NACK information content that needs after ' with operation ' to feed back is 4*2=8,8 ACK/NACK information after described again ' with operation ' divide into groups ' with operation ';

Grouping and method of operation 1

According to detected largest cumulative value

Aggregate-value smaller or equal to

ACK/NACK information divide one group, as first group, residual A CK/NACK information is divided one group, as second group;

Grouping and method of operation 2

All are detected aggregate-value-1 delivery 2 operations of DAI correspondence, the index that the ACK/NACK information that value is identical behind the delivery is divided one group and this group is the value behind the delivery, perhaps, all are detected aggregate-value deliverys 2 operation of DAI correspondence, and the index that the ACK/NACK information that value is identical behind the delivery is divided a group and this group is the value behind the delivery; Just DAI be odd number be first group, first group of DAI be even number be second group.

In said method 1 and 2, for the semi-persistent scheduling (SPS that does not have PDCCH, the ACK/NACK information distribution of PDSCH correspondence Semi-Persistent Scheduling) is carried out ' with operation ' to last one group (during k=2, corresponding second group) with ACK/NACK information in last group.

In embodiments of the present invention, when UE did not detect target P DCCH, the ACK/NACK information of this PDCCH correspondence was NACK, and wherein, the DAI of target P DCCH transmission is less than the DAI of largest cumulative value.For example: it is 1,3,4,5 that UE detects aggregate-value, does not detect aggregate-value 2, and then, the ACK/NACK information of aggregate-value 2 correspondences be NACK just, just be equivalent to second group with operate after the result be NACK.

In 2 group acknowledge information, do not have the ACK/NACK information mapping to the ACK/NACK information of group be NACK.For example: when UE only detects a PDCCH, corresponding aggregate-value is 1, and corresponding ACK/NACK information is ACK, then corresponding ACK/NACK information is ACK in first group, do not have ACK/NACK information in second group, at this moment, second group corresponding A CK/NACK information is NACK; 2 ACK/NACK information after grouping and the operation are ACK and NACK.

Each group all has descending sub frame to lose in described k group, the UE described PUCCH that do not bother to see me out.For example: it is 2,3,5 that UE detects aggregate-value, do not detect aggregate- value 1 and 4, so, the ACK/NACK information of aggregate-value 2 correspondences is NACK just, at this moment, aggregate- value 1,3,5 corresponding one group, aggregate- value 2 and 4 corresponding one group, descending sub frame all takes place corresponding two groups loses, at this moment, do not transmit PUCCH, do not detect PUCCH on the respective resources of base station, know that two corresponding PDSCH of group have and lose.

In embodiments of the present invention, when UE sent confirmation, 2 ACK/NACK information after can will dividing into groups according to order from low to high according to the index of group and operate sent.

In embodiments of the present invention, the PUCCH resource that sends 2 bit ACK/nack message can obtain according to the corresponding resource in sub-district, largest cumulative value place, particularly, can determine according to following method for mapping resource:

Method for mapping resource 1

When described sub-district is when assisting the sub-district, the PUCCH resource of described transmission ACK/NACK information is the PUCCH resource of high-rise configuration to described sub-district, when described sub-district is the main plot, the PUCCH resource of described transmission ACK/NACK information is that UE is according to descending sub frame that detects the PDCCH place and the definite PUCCH resource of described PDCCH place CCE index, wherein, PUCCH resource of each auxilliary cell configuration of UE is given in the base station for configuration;

Method for mapping resource 2

The base station is unified (configuration) PUCCH resource of reserving in auxilliary sub-district that UE is given in configuration, when described sub-district is that the PUCCH resource of described transmission ACK/NACK information is the PUCCH resource of described reservation when assisting the sub-district; When described sub-district was the main plot, the PUCCH resource of described transmission ACK/NACK information was that UE is according to descending sub frame that detects the PDCCH place and the definite PUCCH resource of described PDCCH place CCE index;

Method for mapping resource 3

When described sub-district is the main plot, the PUCCH resource of described transmission ACK/NACK information is that UE is according to descending sub frame that detects the PDCCH place and the definite PUCCH resource of described PDCCH place CCE index, when described sub-district was auxilliary sub-district, the PUCCH resource of described transmission ACK/NACK information be the PUCCH resource according to the DAI acquisition of described aggregate-value correspondence;

Reserve two PUCCH resources, when described DAI is odd number, use the described bit of first PUCCH resource transmission, when described DAI is even number, use second described bit of PUCCH resource transmission, perhaps, reserve three PUCCH resources, when being 0 behind the DAI mould 3, use the described bit of first PUCCH resource transmission, when being 1 behind the DAI mould 3, use second described bit of PUCCH resource transmission, when being 2 behind the DAI mould 3, use the 3rd the described bit of PUCCH resource transmission, perhaps, reserve four PUCCH resources, when DAI is 0, use the described bit of first PUCCH resource transmission, when DAI is 1, use second described bit of PUCCH resource transmission, when DAI is 2, use the 3rd the described bit of PUCCH resource transmission, when DAI is 3, use the 4th the described bit of PUCCH resource transmission.

Embodiment three

In embodiments of the present invention, UE selects feedback acknowledgment information under transferring ACK/NACK pattern at channel.

In embodiments of the present invention, defining the corresponding configuration of sub-frame of uplink window is X descending sub frame, has disposed Y sub-district on each descending sub frame, and the transmission block quantity of each allocating cell transmission is Z, and wherein, X can be 1,2,3,4,9, Y can 1,2,3,4,5, Z can be 1,2;

Wherein, the DAI information representation is at the corresponding aggregate-value that disposes the PDSCH that PDCCH is arranged that distributes in the window of a sub-frame of uplink;

Wherein, described DAI can be according to first frequency domain time domain accumulative total again, and perhaps, described DAI also can be according to first frequency domain time domain and earlier auxilliary sub-district main plot accumulative total more again;

For example, described DAI information can be 2 bits, expression 1,2,3,4, and corresponding to 00,01,10,11, described DAI information is transmission in the descending control information format (DCI Format) of expression down dispatch information, described aggregate-value mould 4 is obtained the DAI information of transmission;

When the detected DAI of UE was 1, if occur for the first time, then, corresponding aggregate-value was

If be to occur for the second time,

If be appearance for the third time, then

If be the 4th appearance, then

If be the 5th appearance, then

When detected DAI is 2, if be respectively the 1/2/3/4/5th appearance, then its

When detected DAI is 3, if be respectively the 1/2/3/4/5th appearance, then its

When detected DAI is 4, in like manner, if be respectively the 1/2/3/4/5th appearance, then its

The ACK/NACK information of two transmission blocks of a PDSCH correspondence is carried out and operation, thisly be called space and operation with operation.For example, suppose that the corresponding configuration of a sub-frame of uplink window is an X descending sub frame, has disposed Y sub-district on each descending sub frame, the transmission block quantity that descending sub frame i goes up allocating cell j transmission is Z _{I, j}, wherein, X can be 1,2,3,4,9, Y can 1,2,3,4,5, Z _{I, j}Can be 1,2, the ACK/NACK quantity of maximum demand feedback in the corresponding configuration of sub-frame of uplink window

Space and the ACK/NACK quantity M that operates back maximum demand feedback in the corresponding configuration of the sub-frame of uplink window ₂=X * Y;

Work as M ₁During≤T, do not carry out space and operation, described k is M ₁, comprising the ACK/NACK information content in the described ACK/NACK information sets is 1 or 0, wherein, the ACK/NACK information content that T can transmit for the PUCCH that sends described ACK/NACK information uses the PUCCH resource to send described k bit ACK/nack message;

Work as M ₁＞T 〉=M ₂The time, advanced row space and operation are divided into groups and operational feedback again, and described k is M ₂, comprising the ACK/NACK information content in the described ACK/NACK information sets is 1 or 0, wherein, the ACK/NACK information content that T can transmit for the PUCCH that sends described ACK/NACK information uses the PUCCH resource to send described k bit ACK/nack message;

Work as M ₂During＞T, advanced row space and operation, divide into groups again and operational feedback, described k is T, wherein, the ACK/NACK information content that T can transmit for the PUCCH that sends described ACK/NACK information uses the PUCCH resource to send described k bit ACK/nack message, perhaps, use the PUCCH resource to send described k bit ACK/nack message and the detected PDCCH information of h bit UE;

In specific implementation process, described T can be 4.

Respectively above-mentioned three scenes are described below.

Scene one

M ₁≤ T does not carry out space and operation, and described k is M ₁, comprising the ACK/NACK information content in the described ACK/NACK information sets is 1 or 0, wherein, the ACK/NACK information content that T can transmit for the PUCCH that sends described ACK/NACK information uses the PUCCH resource to send described k bit ACK/nack message.

Particularly, can determine to send ACK/NACK message position according to the downlink transfer pattern of DAI and each sub-district, perhaps, according to first frequency domain again time domain determine to send ACK/NACK message position in proper order, perhaps, determine to send ACK/NACK message position in proper order in the main plot again in the auxilliary sub-district of time domain and elder generation again according to first frequency domain, perhaps, determine to send ACK/NACK message position in proper order in the auxilliary again sub-district of time domain and first main plot again according to first frequency domain, perhaps, combine with the streams of code words index, earlier according to the streams of code words index more in the manner described above in a kind of definite transmission ACK/NACK message position;

When UE did not detect target P DCCH, the ACK/NACK information of this PDCCH correspondence was NACK, if corresponding transmission mode is supported two transmission blocks, then Dui Ying ACK/NACK information is respectively NACK and NACK.

Send the PUCCH resource of the channel selecting method of 4 bit informations, if be auxilliary sub-district, the PUCCH channel resource of then auxilliary sub-district correspondence disposes according to high level, if be the main plot, then the channel resource of main plot correspondence is determined according to descending sub frame and described PDCCH place CCE index.

Scene two

M ₁＞T 〉=M ₂, advanced row space and operation are divided into groups and operational feedback again, and described k is M ₂, comprising the ACK/NACK information content in the described ACK/NACK information sets is 1 or 0, wherein, the ACK/NACK information content that T can transmit for the PUCCH that sends described ACK/NACK information uses the PUCCH resource to send described k bit ACK/nack message.

Particularly, determine to send ACK/NACK message position according to the downlink transfer pattern of DAI and each sub-district, perhaps, according to first frequency domain again time domain determine to send ACK/NACK message position in proper order, perhaps, determine to send ACK/NACK message position in proper order in the main plot again in the auxilliary sub-district of time domain and elder generation again according to first frequency domain, perhaps, determine to send ACK/NACK message position in proper order in the auxilliary again sub-district of time domain and first main plot again according to first frequency domain, perhaps, combine with the streams of code words index, earlier according to the streams of code words index more in the manner described above in a kind of definite transmission ACK/NACK message position.

When UE did not detect target P DCCH, the ACK/NACK information of this PDCCH correspondence was NACK.

Send the PUCCH resource of the channel selecting method of 4 bit informations, if be auxilliary sub-district, the PUCCH channel resource of auxilliary sub-district correspondence disposes according to high level, if be that the channel resource of main plot correspondence is definite according to descending sub frame and described PDCCH place CCE index.

Scene three

Advanced row space and operation, divide into groups again and operational feedback, described k is T, wherein, the ACK/NACK information content that T can transmit for the PUCCH that sends described ACK/NACK information, use the PUCCH resource to send described k bit ACK/nack message, perhaps, use the PUCCH resource to send described k bit ACK/nack message and the detected PDCCH information of h bit UE.

UE detects PDCCH and obtains the ACK/NACK information of PDSCH and do not have the ACK/NACK information of PDSCH of the SPS of PDCCH to divide into groups and operation obtains 3 bit ACK/nack message in the corresponding configuration of sub-frame of uplink window, the method for using channel to select is transmitted this 3 bit ACK/nack message and the detected PDCCH information of 1 bit UE.

ACK/NACK information to two transmission blocks of a PDSCH correspondence is carried out ' with operation ' (space and operation), to the ACK/NACK information after ' with operation ', divide into groups ' with operation ' again.For example, the corresponding configuration of a sub-frame of uplink window is 4 descending sub frames, 2 sub-districts have been disposed on each descending sub frame, the maximum transmitted number of blocks of each allocating cell transmission is 2, suppose, UE detects 4 PDSCH, wherein, the PDSCH of corresponding two transmission blocks of PDSCH is 2, the PDSCH of a corresponding transmission block of PDSCH is 2, then, the ACK/NACK information content that UE need feed back is 2*2+2=6, UE elder generation carries out ' with operation ' to the ACK/NACK information of two transmission blocks of a PDSCH correspondence, the ACK/NACK information content that needs after ' with operation ' to feed back is 2+2=4,4 ACK/NACK information after described again ' with operation ' divide into groups ' with operation ', and aggregate-value is that 1 and 4 ACK/ANCK message is one group, aggregate-value is that 2 ACK/ANCK message is one group, and aggregate-value is that 3 ACK/ANCK message is one group;

Grouping and method of operation

All are detected aggregate-value-1 delivery k operation of DAI correspondence, and the index that the ACK/NACK information that value is identical behind the delivery is divided a group and this group is the value behind the delivery.Perhaps, all are detected aggregate-value delivery k operation of DAI correspondence, the index that the ACK/NACK information that value is identical behind the delivery is divided a group and this group is the value behind the delivery.

To last one group (during k=3, corresponding the 3rd group), carry out ' with operation ' for the ACK/NACK information distribution of the PDSCH correspondence of the SPS that does not have PDCCH with ACK/NACK information in last group.

When UE did not detect target P DCCH, the ACK/NACK information of this PDCCH correspondence was NACK, and wherein, the DAI of target P DCCH transmission is less than the DAI of largest cumulative value.For example, it is 1,2,5 that UE detects aggregate-value, does not detect aggregate-value 2 and aggregate-value 3, and so, the ACK/NACK information of aggregate-value 2 and aggregate-value 3 correspondences be NACK just, and the result after just being equivalent to second group and the 3rd group and operating is NACK.

In above-mentioned 3 group acknowledge information, for do not have the ACK/NACK information mapping to the ACK/NACK information of group be NACK.For example, when UE only detects two PDCCH, corresponding aggregate-value is 1 and 2, corresponding ACK/NACK information is ACK and NACK, and so, corresponding ACK/NACK information is ACK in first group, corresponding ACK/NACK information is NACK in second group, do not have ACK/NACK information in the 3rd group, at this moment, the 3rd group corresponding A CK/NACK information is NACK; 3 ACK/NACK information after grouping and the operation are ACK and NACK, NACK;

UE when sending confirmation, according to the index of group according to order from low to high will divide into groups with operate after 3 ACK/NACK information send.

Wherein, the detected PDCCH information of described UE can be 1 bit, and the DAI that expression UE detects the largest cumulative value is odd number or even number, perhaps, expression UE feedback ACK/NACK information in the quantity of ACK information be odd number or even number.

The PUCCH resource that sends the channel selecting method of 4 bit informations is determined according to 4 PUCCH channel resources of high level configuration.

Embodiment four

In the present embodiment, adopt PUCCH form 3 pattern feedback acknowledgment information.

In the present embodiment, the DAI information representation is at the corresponding aggregate-value that disposes the PDSCH that PDCCH is arranged that distributes in the window of a sub-frame of uplink; Particularly, described DAI can be according to first frequency domain time domain accumulative total again, and perhaps, described DAI is according to first frequency domain time domain accumulative total and earlier auxilliary sub-district main plot accumulative total more again;

In specific implementation process, described DAI information can be 2 bits, expression 1,2,3,4, corresponding to 00,01,10,11, described DAI information is transmission in the descending control information format (DCI Format) of expression down dispatch information, described aggregate-value mould 4 is obtained the DAI information of transmission.

When the detected DAI of UE was 1, if occur for the first time, then, corresponding aggregate-value was

If be to occur for the second time,

If be appearance for the third time, then

If be the 4th appearance, then

If be the 5th appearance, then

When detected DAI is 2, if be respectively the 1/2/3/4/5th appearance, then its

When detected DAI is 3, if be respectively the 1/2/3/4/5th appearance, then its

When detected DAI is 4, in like manner, if be respectively the 1/2/3/4/5th appearance, then its

The ACK/NACK information of two transmission blocks of a PDSCH correspondence is carried out and operation, thisly be called space and operation with operation; Suppose that the corresponding configuration of a sub-frame of uplink window is an X descending sub frame, has disposed Y sub-district on each descending sub frame, the transmission block quantity that descending sub frame i goes up allocating cell j transmission is Z _{I, j}, wherein, X can be 1,2,3,4,9, Y can 1,2,3,4,5, Z _{I, j}Can be 1,2, the ACK/NACK quantity of maximum demand feedback in the corresponding configuration of sub-frame of uplink window

Space and the ACK/NACK quantity M that operates back maximum demand feedback in the corresponding configuration of the sub-frame of uplink window ₂=X * Y.

Work as M ₁During≤T, do not carry out space and operation, described k is M ₁, comprising the ACK/NACK information content in the described ACK/NACK information sets is 1 or 0, wherein, the ACK/NACK information content that T can transmit for the PUCCH that sends described ACK/NACK information uses the PUCCH resource to send described k bit ACK/nack message;

Work as M ₁＞T 〉=M ₂The time, advanced row space and operation are divided into groups and operational feedback again, and described k is M ₂Comprising the ACK/NACK information content in the described ACK/NACK information sets is 1 or 0, wherein, the ACK/NACK information content that T can transmit for the PUCCH that sends described ACK/NACK information, use the PUCCH resource to send described k bit ACK/nack message, perhaps, use the PUCCH resource to send described k bit ACK/nack message and the detected PDCCH information of h bit UE;

Work as M ₂During＞T, advanced row space and operation are divided into groups and operational feedback again, and described k is T, and wherein, the ACK/NACK information content that T can transmit for the PUCCH that sends described ACK/NACK information uses the PUCCH resource to send described k bit ACK/nack message.

Wherein, the maximal bit quantity that can transmit of PUCCH Format 3 is T; Described T can be 10,11,20,21,22 etc.

Below above-mentioned three kinds of modes are described.

Mode one

Work as M ₁During≤T, do not carry out space and operation, described k is M ₁, comprising the ACK/NACK information content in the described ACK/NACK information sets is 1 or 0, wherein, the ACK/NACK information content that T can transmit for the PUCCH that sends described ACK/NACK information uses the PUCCH resource to send described k bit ACK/nack message;

Determine to send ACK/NACK message position according to the downlink transfer pattern of DAI and each sub-district, perhaps, according to first frequency domain again time domain determine to send ACK/NACK message position in proper order, perhaps, determine to send ACK/NACK message position in proper order in the main plot again in the auxilliary sub-district of time domain and elder generation again according to first frequency domain, perhaps, determine to send ACK/NACK message position in proper order in the auxilliary again sub-district of time domain and first main plot again according to first frequency domain, perhaps, combine with the streams of code words index, earlier according to the streams of code words index more in the manner described above in a kind of definite transmission ACK/NACK message position.

Mode two

Work as M ₁＞T 〉=M ₂The time, advanced row space and operation are divided into groups and operational feedback again, and described k is M ₂, comprising the ACK/NACK information content in the described ACK/NACK information sets is 1 or 0, wherein, the ACK/NACK information content that T can transmit for the PUCCH that sends described ACK/NACK information uses the PUCCH resource to send described k bit ACK/nack message;

Determine to send ACK/NACK message position according to DAI, perhaps, according to first frequency domain again time domain determine to send ACK/NACK message position in proper order, perhaps, determine to send ACK/NACK message position in proper order in the main plot again in the auxilliary sub-district of time domain and elder generation again according to first frequency domain, perhaps, determine to send ACK/NACK message position in proper order in the auxilliary again sub-district of time domain and first main plot again according to first frequency domain.

Mode three

Work as M ₂During＞T, advanced row space and operation, divide into groups again and operational feedback, described k is T, wherein, the ACK/NACK information content that T can transmit for the PUCCH that sends described ACK/NACK information uses PUCCH Format 3 to send k (k=T-h) bit ACK/nack message and the detected PDCCH information of h bit UE, perhaps, use PUCCH Format 3 to send k (k=M) bit ACK/nack message.

In embodiments of the present invention, UE detects PDCCH and obtains the ACK/NACK information of PDSCH and do not have the ACK/NACK information of PDSCH of the SPS of PDCCH to divide into groups and operation obtains k bit ACK/nack message in the corresponding configuration of sub-frame of uplink window, use PUCCH Format 3 this k bit ACK/nack message of transmission and the detected PDCCH information of h bit UE, perhaps, use PUCCH Format 3 transmission only to transmit this k bit ACK/nack message.

ACK/NACK information to two transmission blocks of a PDSCH correspondence is carried out ' with operation ' (space and operation), to the ACK/NACK information after ' with operation ', divide into groups ' with operation ' again.For example, the corresponding configuration of a sub-frame of uplink window is 4 descending sub frames, 2 sub-districts have been disposed on each descending sub frame, the maximum transmitted number of blocks of each allocating cell transmission is 2, suppose, UE detects 6 PDSCH, wherein, the PDSCH of corresponding two transmission blocks of PDSCH is 4, the PDSCH of a corresponding transmission block of PDSCH is 2, then, the ACK/NACK information content that UE need feed back is 2*4+2=10, UE earlier carries out ' with operation ' to the ACK/NACK information of two transmission blocks of a PDSCH correspondence, and the ACK/NACK information content that needs after ' with operation ' to feed back is 4+2=6,4 ACK/NACK information after described again ' with operation ' divide into groups ' with operation '.

In embodiments of the present invention, grouping can realize in the following manner with method of operation:

(1) can operate all aggregate-value-1 deliverys that detect the DAI correspondence, the index that the ACK/NACK information that value is identical behind the delivery is divided one group and this group is the value behind the delivery, perhaps, all are detected aggregate-value delivery k operation of DAI correspondence, and the index that the ACK/NACK information that value is identical behind the delivery is divided a group and this group is the value behind the delivery;

To last one group (k group), carry out ' with operating ' for the ACK/NACK information distribution of the PDSCH correspondence of the SPS that does not have PDCCH with ACK/NACK information in last group;

When UE did not detect target P DCCH, the ACK/NACK information of this PDCCH correspondence was NACK, and wherein, the DAI of target P DCCH transmission is less than the DAI of largest cumulative value.For example, to detect aggregate-value be 1,2,3 for k=10, UE, 5,6,7,9, do not detect aggregate-value 4 and aggregate-value 8, so, the ACK/NACK information of aggregate-value 4 and aggregate-value 8 correspondences be NACK just, and the result after just being equivalent to the 4th group and the 8th group and operating is NACK;

(2) in the described k group, do not have the ACK/NACK information mapping to the ACK/NACK information of group be NACK.

For example, k=10, when UE only detects two PDCCH, corresponding aggregate-value is 1,2, corresponding ACK/NACK information is ACK and ACK, and so, corresponding ACK/NACK information is ACK in first group, corresponding ACK/NACK information is NACK in second group, do not have ACK/NACK information in all the other groups, at this moment, all the other group corresponding A CK/NACK information are NACK; K ACK/NACK information after grouping and the operation is ACK, ACK and 8 NACK;

(3) according to the index of group according to order from low to high will divide into groups with operate after k ACK/NACK information send.

In the UE feedack, the detected PDCCH information of UE can be 1 bit, and the DAI that expression UE detects the largest cumulative value is odd number or even number, perhaps, expression UE feedback ACK/NACK information in the quantity of ACK information be odd number or even number.

Described h bit is 2 bits, expression UE detects the DAI value of largest cumulative value correspondence, perhaps, 1 bit represents that the DAI that UE detects the largest cumulative value is odd number or even number, 1 bit represent to feed back ACK/NACK information in the quantity of ACK information be odd number or even number, perhaps, expression feedback ACK/NACK information in the quantity of ACK or NACK;

PUCCH Format 3 resources that send the k bit information are determined according to high level configuration PUCCH channel resource.

Figure 10 is the structural representation according to the subscriber equipment of the embodiment of the invention, and as shown in figure 10, this subscriber equipment mainly comprises: detection module 10 is used for the descending assignment information that base stations detected sends by Physical Downlink Control Channel (PDCCH); Grouping module 20 is used for being divided into the k group according to the affirmation information that described descending assignment information is fed back needs; Merge module 30, be used for by the affirmation information that each group comprises being merged into a confirmation with operation; Sending module 40 is used to send k confirmation after the merging.

In specific implementation process, this subscriber equipment can specifically repeat no more according to the mode of the foregoing description one to embodiment three to the base station feedback confirmation.

As can be seen from the above description, by the present invention, can under carrier aggregation scene, realize the feedback of ACK/NACK information, and, can maximized assurance throughput of system by technical scheme provided by the invention, and reserve the PUCCH resource of feeding back ACK/nack message less as far as possible.

Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (35)

1. the sending method of a confirmation is characterized in that, comprising:

The descending assignment information DAI that the user equipment (UE) base stations detected sends by physical downlink control channel PDCCH;

The affirmation information that described UE feeds back needs according to described descending assignment information is divided into the k group, and by with operation the affirmation information that comprises in each group being merged into a confirmation, wherein, k is a natural number;

Described UE sends k confirmation after merging.

2. method according to claim 1 is characterized in that,

Described DAI indication is in the corresponding configuration of sub-frame of uplink window, in all descending sub frames before described DAI place descending sub frame i and descending sub frame i, the sum that the PDSCH of PDCCH is arranged, and it is identical to be assigned the value of DAI of component carrier frequency of described PDSCH among the described descending sub frame i; Perhaps,

Described DAI represents to have on the descending sub frame i of described DAI place the PDSCH sum of PDCCH, and the DAI value that descending sub frame i goes up the PDSCH correspondence that PDCCH is arranged of distributing is identical.

3. method according to claim 2, it is characterized in that, when k equals 1, described UE uses PUCCH form 1b to send 2 bit feedback information, the respectively corresponding following four kinds of states of each value: the descending sub frame that the descending sub frame that the descending sub frame that nack message, ACK information and described UE receive the PDSCH of PDCCH is 1 or 4, ACK information and described UE receive the PDSCH of PDCCH is 2, ACK information and described UE receive the PDSCH of PDCCH is 3.

4. method according to claim 3 is characterized in that, the affirmation information that described UE feeds back needs according to described DAI is divided into the k group, comprises by with operation the affirmation information that comprises in each group being merged into a confirmation:

Described UE determines that according to the value of detected DAI from described configuration window described base station sends to the sum of the described PDSCH of described UE

Described UE judges that it detects the quantity U of described PDSCH on all descending sub frames of described configuration window _DAIWhether be not equal to

Perhaps U _DAIWhether less than

If then described UE determines that needing the described confirmation of feedback is wrong responses NACK, perhaps, described UE does not feed back Physical Uplink Control Channel PUCCH; Otherwise,

Described UE is divided into one group with the affirmation information of all descending sub frames of described configuration window to carry out and operation.

5. method according to claim 2 is characterized in that, the affirmation information that described UE feeds back needs according to described DAI is divided into the k group, comprises by with operation the affirmation information that comprises in each group being merged into a confirmation:

The quantity of supposing descending sub frame in the described configuration window is S, and then, k is S, and affirmation information corresponding on each described descending sub frame is divided into one group.

6. method according to claim 5 is characterized in that,

Described UE uses PUCCH form 1b to send 2 bit feedback information, the respectively corresponding following four kinds of states of each value: the ACK information content is 0, the ACK information content is 1 or 4, the ACK information content is 2, the ACK information content is 3, wherein, the quantity of the ACK information of described feedback information indication for each group acknowledge carry out with operate after the quantity of ACK information;

Perhaps,

Described UE uses PUCCH form 1b to send 2 bit feedback information, the respectively corresponding following four kinds of states of each value: the ACK information content is 1, the ACK information content is 4, the ACK information content is 2, the ACK information content is 3; When the ACK information content is 0, do not send PUCCH, wherein, the quantity of the ACK information of described feedback information indication for each group acknowledge information carry out with operation after the quantity of ACK information, if the ACK information content of described feedback information indication is a, the affirmation information and the operating result that then are illustrated in preceding a descending sub frame in b the descending sub frame that described PDSCH is arranged in the described configuration window all are ACK.

7. method according to claim 6 is characterized in that, the affirmation information that described UE feeds back needs according to described DAI is divided into the k group, comprises by with operation the affirmation information that comprises in each group being merged into a confirmation:

Described UE determines that according to the value of detected DAI from described configuration window described base station sends to the sum of the described PDSCH of described UE on descending sub frame i

Described UE judges that it detects the quantity of described PDSCH on descending sub frame i

Whether be not equal to

Perhaps

Whether less than

If then described UE determines that needing the described confirmation of feedback is 0 for the ACK information content, perhaps, the affirmation information after this group and the operation is wrong responses NACK, and perhaps, described UE does not feed back Physical Uplink Control Channel PUCCH; Otherwise,

Described UE will be divided into one group in the affirmation information on the descending sub frame i to carry out and operation.

8. according to claim 4 or 7 described methods, it is characterized in that described UE determines the value of detected DAI on descending sub frame i in such a way:

Described UE according to the value of the DAI of the previous descending sub frame of detected descending sub frame i and on descending sub frame i the detected quantity that is assigned described PDSCH, determine the implication of detected DAI on descending sub frame i; Perhaps,

Described UE according on the descending sub frame i detected the PDSCH quantity of PDCCH is arranged and on descending sub frame i detected DAI, determine the implication of detected DAI on descending sub frame i.

9. method according to claim 2 is characterized in that, k the confirmation that described UE sends after merging comprises:

If described UE in the end detects the PDSCH of PDCCH correspondence on the principal component carrier frequency of a PDSCH subframe that PDCCH arranged and sends, then, described UE determines the PUCCH resource according to the control channel element index that detects the above PDCCH place of principal component carrier frequency of last PDSCH subframe that PDCCH is arranged, and described UE sends a described k confirmation on described PUCCH resource; If described UE does not in the end detect the PDSCH of PDCCH correspondence on the principal component carrier frequency of a PDSCH subframe that PDCCH arranged and sends, it is that described UE reserves or the PUCCH resource of configuration sends a described k confirmation that described UE uses the base station; Perhaps,

It is that described UE reserves or the PUCCH resource of configuration sends a described k confirmation that described UE uses the base station.

10. according to each described method in claim 2 to 7 and 9, it is characterized in that,

Described UE sends one of in the following ways a described k confirmation:

Described UE uses PUCCH form 1b to transmit a described k confirmation;

Described UE sends a dispatch request SR and a described k confirmation simultaneously,

Use the described k of a PUCCH resource transmission confirmation of SR correspondence;

Described UE sends a channel quality indicator (CQI)/pre-coding matrix indication PMI and a described k confirmation simultaneously, uses the PUCCH form 2b of transmission CQI/PMI to transmit a described k confirmation;

Described UE indicates a RI and a described k confirmation to send simultaneously order, uses the PUCCH form 2b of transmission RI to transmit a described k confirmation.

11. method according to claim 1 is characterized in that, described DAI indication has the aggregate-value of the PDSCH of PDCCH in the corresponding configuration of sub-frame of uplink window.

12. method according to claim 11 is characterized in that, before the DAI that described UE base stations detected sends by PDCCH, described method also comprises:

Described base station according to first frequency domain again time domain or first frequency domain again time domain and earlier auxilliary component carrier frequency again the principal component carrier frequency be accumulated at the quantity that the PDSCH of PDCCH is arranged in the described configuration window, the aggregate-value that obtains according to accumulative total is determined the value of described DAI;

Described base station sends to described UE with described DAI by described PDCCH.

13. method according to claim 11 is characterized in that,

Described DAI takies 2 bits, transmits in the descending control information format of expression down dispatch information;

Described base station determines that according to the aggregate-value that accumulative total obtains the value of described DAI comprises: described base station obtains described aggregate-value the value of described DAI to 4 deliverys.

14. method according to claim 13 is characterized in that, described UE detects base

The DAI that sends by PDCCH that stands comprises:

Described UE detects the DAI that sends among the described PDCCH;

Described UE determines the aggregate-value of the DAI correspondence that current detection arrives according to the current value that detects number of times and the described DAI that current detection arrives of DAI in described configuration window.

15. method according to claim 11 is characterized in that, the affirmation information that described UE feeds back needs according to described DAI is divided into the k group and comprises:

Described UE subtracts 1 respectively to the aggregate-value of detected each DAI correspondence in described configuration window, carry out delivery k operation then respectively, the index that the affirmation information of the DAI correspondence that value behind the delivery is identical is divided one group and this group is the value behind the delivery, perhaps, described UE carries out delivery k operation respectively to the aggregate-value of detected each DAI correspondence in described configuration window, and the index that the affirmation information of the DAI correspondence that value behind the delivery is identical is divided a group and this group is the value behind the delivery.

16. method according to claim 11, it is characterized in that, k=2, described UE is divided into the k group according to described DAI with the affirmation information of needs feedbacks and comprises: described UE obtains detected largest cumulative value in described configuration window, with detected aggregate-value smaller or equal to

The affirmation information of DAI correspondence divide one group, the affirmation information of remaining transmission block is divided another group, wherein, Be described largest cumulative value.

17. according to claim 15 or 16 described methods, it is characterized in that described UE is divided into the k group according to described DAI with the affirmation information of needs feedbacks and also comprises: described UE will be not arrive last one group in the affirmation information distribution of the PDSCH correspondence of the semi-persistent scheduling SPS of PDCCH transmission down dispatch information.

18. method according to claim 11 is characterized in that, described method also comprises:

If described UE does not detect target P DCCH, then define descending sub frame and lose, the affirmation information that the PDSCH correspondence of this target P DCCH is arranged is NACK, wherein, the DAI that transmits among the target P DCCH is less than the DAI of largest cumulative value correspondence.

19. method according to claim 18 is characterized in that, each group all has descending sub frame to lose in described k group, and then described UE does not feed back PUCCH, and perhaps, the affirmation information and the operating result of described each group of UE are set to NACK.

20. method according to claim 11 is characterized in that, if having the group that does not have confirmation in the described k group, then the result with operation that should organize is NACK.

21. method according to claim 11 is characterized in that, k the confirmation that described UE sends after merging comprises:

Described UE sends described k confirmation after grouping and the operation according to the index of each group in the described k group according to from low to high order.

22. method according to claim 11 is characterized in that, described UE sends one of in the following ways a described k confirmation:

Use PUCCH form 3 to send described k confirmation of k bit;

Use PUCCH form 3 to send the described confirmation of k bit and the supplementary of h bit, wherein, h is a natural number.

23. method according to claim 11 is characterized in that, described UE sends one of in the following ways a described k confirmation:

Described UE adopts channel selecting method to send described k confirmation of 4 bits;

Described UE uses channel selecting method to send described k the confirmation of 4-h bit and the supplementary of h bit, and wherein, h is a natural number.

24. according to claim 22 or 23 described methods, it is characterized in that, the supplementary of described h bit is the relevant information of the DAI of the detected largest cumulative value of described UE correspondence, and perhaps, the supplementary of described h bit is the relevant information of affirmation information of described UE feedback.

25. method according to claim 24, it is characterized in that described h bit is 1 bit, represent that the value that described UE detects the DAI of largest cumulative value correspondence is odd number or even number, perhaps, the quantity of representing correctly to reply in the affirmation information of described UE feedback ACK is odd number or even number.

26. method according to claim 24 is characterized in that, described h bit is 2 bits, is used to represent one of following information:

Represent that described UE detects the value of the DAI of largest cumulative value correspondence;

Wherein 1 bit of described 2 bits represents that the value that described UE detects the DAI of largest cumulative value correspondence is odd number or even number, and the quantity of ACK is odd number or even number in the affirmation information that 1 bit is represented to feed back;

The quantity of ACK or NACK in the affirmation information of expression feedback.

27. method according to claim 1 is characterized in that, if corresponding quantity M who disposes the affirmation information of maximum demand feedback in the window of sub-frame of uplink ₁The affirmation information that the quantity T of the affirmation information that can transmit less than the PUCCH maximum of acknowledge information, then described UE directly will need to feed back is divided into the k group, wherein, and k=M ₁, X is the quantity of the descending sub frame in the described configuration window, and Y is the quantity of the component carrier frequency that disposes in each descending sub frame, Z _{I, j}Go up the quantity of the transmission block of the component carrier frequency j transmission of disposing for descending sub frame i.

28. method according to claim 1 is characterized in that, if M ₁＞T 〉=M ₂The time, then described UE will have earlier the affirmation information of two transmission block correspondences of the PDSCH of PDCCH carry out with operation after, will carry out again this with operation after affirmation information be divided into the k group, wherein, k=M ₂, X is the quantity of the descending sub frame in the described configuration window, and Y is the quantity of the component carrier frequency that disposes in each descending sub frame, Z _{I, j}The quantity of the transmission block that the component carrier frequency j that upward disposes for descending sub frame i transmits, M ₂=X * Y, M ₁Be the quantity of the affirmation information of maximum demand feedback in the corresponding configuration of sub-frame of uplink window, T is the quantity of the affirmation information that can transmit of the PUCCH maximum of acknowledge information.

29. method according to claim 1 is characterized in that, if M ₂＞T, then described UE will have earlier PDCCH two the transmission block correspondences of PDSCH on the one-component carrier frequency of a descending sub frame affirmation information with the operation after, the affirmation information that to carry out the needs feedback after this operation again is divided into the k group, wherein, k=T, perhaps, k=T-f, f is 0 or 1 or 2 or 3, T is the quantity of the affirmation information that can transmit of the PUCCH maximum of acknowledge information, X is the quantity of the descending sub frame in the described configuration window, and Y is the quantity of the component carrier frequency that disposes in each descending sub frame, M ₂=X * Y.

30. method according to claim 11 is characterized in that, if k=2, k the confirmation that then described UE sends after merging comprises:

Described UE sends the affirmation information of 2 bits by PUCCH form 1b, wherein, the PUCCH resource that sends the affirmation information of described 2 bits obtains according to the corresponding resource of detected largest cumulative value place component carrier frequency.

31. method according to claim 30 is characterized in that, when described largest cumulative value place component carrier frequency was auxilliary component carrier frequency, the PUCCH resource of the affirmation information of described 2 bits of described transmission be the high-rise PUCCH resource that disposes to described auxilliary component carrier frequency; When this component carrier was the principal component carrier wave, the PUCCH resource of the affirmation information of described 2 bits of described transmission was that described UE is according to descending sub frame that detects the PDCCH place and the definite PUCCH resource of described PDCCH place CCE index.

32. method according to claim 31 is characterized in that, PUCCH resource of the unified reservation of auxilliary component carrier frequency of described UE is given in described base station for configuration.

33. method according to claim 31 is characterized in that,

Two PUCCH resources of the unified reservation of auxilliary component carrier frequency of described UE are given in described base station for configuration, when the value of detected DAI is odd number, use first PUCCH resource transmission, when the value of detected DAI is even number, use second PUCCH resource transmission; Perhaps,

Three PUCCH resources of the unified reservation of auxilliary component carrier frequency of described UE are given in described base station for configuration, when being 0 behind the value mould 3 of detected DAI, use first PUCCH resource transmission, when being 1 behind the value mould 3 of detected DAI, use second described bit of PUCCH resource transmission, when being 2 behind the value mould 3 of detected DAI, use the 3rd the described bit of PUCCH resource transmission; Perhaps,

Four PUCCH resources of the unified reservation of auxilliary component carrier frequency of described UE are given in described base station for configuration, when the value of detected DAI is 0, use first PUCCH resource transmission, when the value of detected DAI is 1, use second PUCCH resource transmission, when the value of detected DAI is 2, use the 3rd PUCCH resource transmission, when the value of detected DAI is 3, use the 4th the described bit of PUCCH resource transmission.

34. method according to claim 11 is characterized in that, if k greater than 2, then described UE sends the PUCCH resource of the described confirmation of k bit and is indicated by high-level signaling configuration and dynamic resource signaling, perhaps, is disposed by high-level signaling.

35. a UE is characterized in that, comprising:

Detection module is used for the DAI that base stations detected sends by physical downlink control channel PDCCH;

Grouping module is used for being divided into the k group according to the affirmation information that described DAI feeds back needs;

Merge module, be used for by the affirmation information that each group comprises being merged into a confirmation with operation;

Sending module is used to send k confirmation after the merging.

Images