CN101789851B

CN101789851B - The sending method of a kind of multicarrier system and correct/error response message thereof

Info

Publication number: CN101789851B
Application number: CN201010003429.8A
Authority: CN
Inventors: 梁春丽; 夏树强; 米德忠; 戴博
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2010-01-15
Filing date: 2010-01-15
Publication date: 2015-08-12
Anticipated expiration: 2030-01-15
Also published as: WO2011085582A1; CN101789851A

Abstract

The invention discloses the multicarrier system under a kind of large bandwidth, and the sending method of correct/error response message in this multicarrier system, in the multicarrier system comprising base station and terminal, base station is indicating downlink allocation index on Physical Downlink Control Channel; Terminal is according to the descending allocation index received and the actual component carrier number detected, and carry out the Physical Downlink Shared Channel that Physical Downlink Shared Channel detects the downlink component carrier obtained and transmit correct/error response message corresponding to each streams of code words, physically on row shared channel or Physical Uplink Control Channel, configure the transmission carrying out correct/error response message to the binding of terminal or multiplex mode according to base station.When carrying out error response message and sending, configure the reason of the response message that to make the mistake to base station instruction to the binding of terminal or multiplex mode according to base station.The present invention can realize the transmission of the correct/error response message under downstream arrangements information possibility loss situation.

Description

The sending method of a kind of multicarrier system and correct/error response message thereof

Technical field

The present invention relates to digital communicating field, particularly relate to the multicarrier system under a kind of large bandwidth, and the sending method of correct/error response message in this multicarrier system.

Background technology

The reliability of develop rapidly to data communication of digital communication system is had higher requirement, but under severe channel, especially in high data rate or high-speed mobile environment, multi-path jamming and Doppler frequency shift etc. seriously affect systematic function.Therefore, effective error-control technique, especially mixing automatic repeat request (Hybrid Automatic Repeat Request, HARQ) technology just becomes the focus endeavouring to study in the communications field.

In HARQ mode, making a start the code sent can not only error detection, but also has certain error correcting capability.After receiving terminal decoder receives code word, first check error situation, if within the error correcting capability of code, then automatically carry out error correction; If mistake is a lot, has exceeded the error correcting capability of code, but can detect mistake out, then receiving terminal is by feedback channel to a decision signal of making a start, and requires to make a start retransmission of information.At OFDM (Orthogonal Frequency Division Multiplexing, OFDM) in system, represented by correct response message/error response message (ACK/NACK:Acknowledgement/Negative Acknowledgement) control signal and transmit correct or mistake, and judge whether to need to retransmit with this.

In the descending HARQ of long evolving system (LTE:Long Term Evolution), the ACK/NACK response message of Physical Downlink Shared Channel (PDSCH:Physical Downlink Shared Channel), when terminal (UE:User Equipment) does not have Physical Uplink Shared Channel (PUSCH:Physical Uplink Shared Channel) at present sub-frame, being that row control channel (PUCCH:Physical Uplink Control Channel) is upper physically sends; And when UE has PDSCH to send at present sub-frame, ACK/NACK information, sends multiplexing together with the identical modulation coding mode of data acquisition on PUSCH.

When PDSCH only comprises a transmission block, terminal will feed back the ACK/NACK response message of 1 bit, and when PDSCH comprises two transmission blocks, terminal will feed back the ACK/NACK response message of 2 bits.

In IMT-Advanced (International Mobile Telecommunications-Advanced is referred to as IMT-Advanced) system, the high-speed transfer of data can be realized, and there is larger power system capacity, move at low speed, focus cover, the peak rate of IMT-Advanced system can reach 1Gbit/s, when high-speed mobile, wide area cover, the peak rate of IMT-Advanced system can reach 100Mbit/s.

In order to meet senior International Telecommunication Union (International TelecommunicationUnion-Advanced, referred to as ITU-Advanced) requirement, as senior Long Term Evolution (the Long Term Evolution Advanced of the evolution standard of LTE, referred to as LTE-A) system needs to support larger system bandwidth (reaching as high as 100MHz), and needs the existing standard of backward compatibility LTE.On the basis of existing LTE system, the bandwidth of LTE system can be carried out merging and obtain larger bandwidth, this technology is called carrier aggregation (Carrier Aggregation, referred to as CA) technology, this technology can improve IMT-Advance system the availability of frequency spectrum, to alleviate frequency spectrum resource in short supply, and then optimizes the utilization of frequency spectrum resource.

After introducing carrier aggregation, current about in the discussion of downlink component carrier and PDSCH transmission block and HARQ process relation, a groundwork supposition is when not adopting space division multiplexing, a corresponding PDSCH transmission block of downlink component carrier and a HARQ process, that is, UE needs a PDSCH transmission block for each component carrier to feed back the ACK/NACK response message of 1 bit.

In addition, the current working hypothesis of LTE-A is, for the PDSCH transmission of the non-semi-continuous scheduling (SPS:semi-persistent scheduling) on each downlink component carrier, it has corresponding PDCCH to carry its corresponding downstream arrangements information, and PDCCH and the PDSCH carrying this downstream arrangements information can on identical component carrier (when not having multi-carrier indicator (CI:CarrierIndicator) in DCI), also can on different component carriers (when introducing CI in DCI).

In lte-a system after have employed spectrum aggregating technology, upstream bandwidth and downlink bandwidth just can comprise multiple component carrier.When there is the PDSCH dispatched to certain UE base station on multiple downlink component carrier, and when UE does not have PUSCH to send at present sub-frame, terminal needs the ACK/NACK response message feeding back the PDSCH transmission of this multiple downlink component carrier on PUCCH, and when UE has PUSCH to send on present sub-frame, terminal by multiplexing for ACK/NACK response message on PUSCH, can send with data simultaneously.Therefore, for LTE-A, even if in FDD system, also need the ACK/NACK response message feeding back the corresponding PDSCH of multiple downlink component carrier in a sub-frame of uplink, this is different from the FDD system of Rel-8LTE.

For the situation sending ACK/NACK response message on PUCCH, following three kinds of method process can be adopted:

(1) a kind of direct method is exactly on the multiple PUCCH channels corresponding with multiple downlink component carrier, adopts with the identical mode of LTE, feeds back multiple ACK/NACK response message respectively.This Measures compare is simple, can be good at keeping the compatibility with LTE, but has multiple PUCCH channel to transmit due to up simultaneously, destroy uplink single-carrier property, when UE power limited, the detection perform of ACK/NACK will be affected, or cause up covering performance to decline.

(2) another kind of method is binding method, on single PUCCH channel feeds back after carrying out bindings (bundling, namely logic and operation) exactly to the ACK/NACK response message of multiple descending carrier.

(3) in addition, also has a kind of method of the Channel assignment based on TDD system (also referred to as multiplexing with channel selection, be called for short multiplexing), the core concept of the method is exactly utilize modulation symbols different on different PUCCH channels and this channel to represent the different feedback states of all carrier waves.The method owing to only feeding back on a PUCCH channel, and therefore there is not the problem destroying single-carrier property, avoid the throughput degradation problem that binding method brings, therefore the method is subject to the support of multiple company simultaneously.

Above-mentioned three kinds of methods, the first is NxPUCCH, and the second is bundling, and the third is multiplexing.Due to above-mentioned latter two ACK/NACK feedback system, can ensure that up single carrier, thus, in lte-a system, these two kinds of modes can as the candidate scheme of feedback scheme when ACK/NACK response message sends on PUCCH in lte-a system.But, because the downstream arrangements information (being carried on corresponding PDCCH) of the PDSCH on some component carrier is lost, and UE correctly can not detect the loss of downstream arrangements information owing to lacking corresponding mechanism, and then cause UE can not correct feeding back ACK/NACK response message.

Thus, in lte-a system, detecting the loss of downstream arrangements information in UE side or base station side, is a problem urgently to be resolved hurrily in the design of ACK/NACK feedback scheme.For the situation sending ACK/NACK response message on PUSCH, also there is no corresponding solution at present.

Summary of the invention

Technical problem to be solved by this invention is, multicarrier system under a kind of large bandwidth is provided, and the sending method of correct/error response message in this multicarrier system, solve in multicarrier system, when downstream arrangements information may occur to lose, how to realize the transmission of ACK/NACK response message.

In order to solve the problem, the present invention proposes the sending method of correct/error response message in a kind of multicarrier system, comprising:

Base station transmit relevant descending allocation index and/or transmit with physical uplink the descending allocation index relevant Physical Downlink Control Channel indicate and transmits with Physical Downlink Shared Channel and be correlated with transmitting relevant Physical Downlink Control Channel indicates to physical down with Physical Downlink Shared Channel, to terminal transmission Physical Downlink Shared Channel and Physical Downlink Control Channel accordingly;

Terminal detects Physical Downlink Control Channel, is V according to transmitting to physical down the descending allocation index that relevant Physical Downlink Control Channel obtains subframe n _dAI ^dL, be V according to transmitting to physical uplink the descending allocation index that relevant Physical Downlink Control Channel obtains subframe n _dAI ^uL; The actual component carrier number with the Physical Downlink Shared Channel transmission of respective physical down control channel detected is U _dAI, do not have the component carrier number that the Physical Downlink Shared Channel of respective physical down control channel transmits to be N _sPS;

Terminal, according to the downstream arrangements information of the Physical Downlink Control Channel detected, carries out Physical Downlink Shared Channel detection, and the Physical Downlink Shared Channel obtaining corresponding downlink component carrier transmits correct/error response message corresponding to each streams of code words;

Terminal on subframe n+K, according to described V _dAI ^dL, V _dAI ^uL, U _dAI, N _sPSbe combined on Physical Uplink Shared Channel or Physical Uplink Control Channel, configure the transmission carrying out correct/error response message to the binding of terminal or multiplex mode according to base station.

Described terminal when carrying out error response message and sending, configures the reason of the response message that to make the mistake to base station instruction to the binding of terminal or multiplex mode further on subframe n+K according to base station.

Describedly transmitting to physical down the descending allocation index relevant Physical Downlink Control Channel indicating and transmit with Physical Downlink Shared Channel and be correlated with, add a descending allocation index DAI territory, for representing the downlink component carrier number for carrying out Physical Downlink Shared Channel transmission distributing to terminal being accumulated to current downlink component carrier in present sub-frame according to certain carrier dispatching order in the descending control information format transmitting relevant Physical Downlink Control Channel to Physical Downlink Shared Channel;

Describedly transmitting to physical uplink the descending allocation index relevant Physical Downlink Control Channel indicating and transmit with Physical Downlink Shared Channel and be correlated with, add a descending allocation index DAI territory, for representing in present sub-frame the downlink component carrier number for carrying out Physical Downlink Shared Channel transmission distributing to terminal in the descending control information format transmitting relevant Physical Downlink Control Channel to Physical Uplink Shared Channel.

Described terminal detects Physical Downlink Control Channel, is V according to transmitting to physical down the descending allocation index that relevant Physical Downlink Control Channel obtains subframe n _dAI ^dL, refer to that terminal carries out Physical Downlink Control Channel detection, V according to certain carrier wave order _dAI ^dLlast detecting for terminal transmits the value in the DAI territory in relevant descending control information format to Physical Uplink Shared Channel;

Described terminal detects Physical Downlink Control Channel, is V according to transmitting to physical uplink the descending allocation index that relevant Physical Downlink Control Channel obtains subframe n _dAI ^uL, refer to that terminal detects and transmit relevant Physical Downlink Control Channel to Physical Uplink Shared Channel, then establish V _dAI ^uLfor the value in the DAI territory in the descending control information format of corresponding Physical Downlink Control Channel.

If terminal has Physical Uplink Shared Channel PUSCH to transmit on subframe n+K, then physically row shared channel feeds back correct/error response message, otherwise, physically row control channel feeds back correct/error response message.Wherein:

Terminal adopts binding pattern, and physically during row shared channel feedback correct/error response message, first judged whether at least one downstream arrangements information dropout, if having, all streams of code words all produce wrong responses signal; Otherwise by U _dAI+ N _sPSthe correct/error response message of the corresponding each streams of code words of individual separate physical DSCH Downlink Shared Channel transmission is bound, by the row shared channel feedback physically of the correct/error response message after binding.After terminal is bound correct/error response message, need to send wrong responses signal, determine corresponding binding number, adopt this binding number to select scrambling to error response message.

Terminal adopts binding pattern, and physically during row control channel feedback correct/error response message, first judged whether at least one downstream arrangements information dropout, if having, then terminal does not send any correct/error answer signal; Otherwise by U _dAI+ N _sPSthe correct/error response message of the corresponding each streams of code words of individual separate physical DSCH Downlink Shared Channel transmission is bound, by the row control channel feedback physically of the correct/error response message after binding.Correct/error response message after terminal adopts form 1a or 1b of Physical Uplink Control Channel to send binding.

Terminal adopts multiplexer mode, physically during row shared channel feedback correct/error response message, first according to number or the described V of downlink component carrier in downlink component carrier collection _dAI ^dLdetermine the number of bits of feedback of correct/error response message, then after the bindings between streams of code words is carried out to the correct/error response message that each streams of code words detects, bound values to be mapped in number of bits of feedback in corresponding bit.

Terminal adopts multiplexer mode, physically during row control channel feedback correct/error response message, first according to the number of bits of feedback of the number determination correct/error response message of downlink component carrier in downlink component carrier collection, after bindings between streams of code words is carried out to the correct/error response message that each streams of code words detects, obtain the correct/error response message after the several binding of feedback bits; Select the Physical Uplink Control Channel that available again, the correct/error response message after adopting form 1b to send binding.

The value of described K is determined according to the timing relationship of down mixing automatic repeat request HARQ.

Describedly transmit relevant Physical Downlink Control Channel to Physical Uplink Shared Channel only send one in downlink component carrier collection.

The present invention also provides a kind of multicarrier system, comprising: base station and terminal, wherein:

Base station, for transmitting to physical down the descending allocation index relevant Physical Downlink Control Channel indicating and transmits with Physical Downlink Shared Channel and be correlated with, and/or for transmitting to physical uplink the descending allocation index relevant Physical Downlink Control Channel indicating and transmits with Physical Downlink Shared Channel and be correlated with, send Physical Downlink Shared Channel and corresponding Physical Downlink Control Channel to terminal;

Terminal, for detecting Physical Downlink Control Channel, is V according to transmitting to physical down the descending allocation index that relevant Physical Downlink Control Channel obtains subframe n _dAI ^dL, be V according to transmitting to physical uplink the descending allocation index that relevant Physical Downlink Control Channel obtains subframe n _dAI ^uL; The actual component carrier number with the Physical Downlink Shared Channel transmission of respective physical down control channel detected is U _dAI, do not have the component carrier number that the Physical Downlink Shared Channel of respective physical down control channel transmits to be N _sPS;

Terminal, also for the downstream arrangements information according to the Physical Downlink Control Channel detected, carry out Physical Downlink Shared Channel detection, the Physical Downlink Shared Channel obtaining corresponding downlink component carrier transmits correct/error response message corresponding to each streams of code words; Terminal on subframe n+K, according to described V _dAI ^dL, V _dAI ^uL, U _dAI, N _sPSbe combined on Physical Uplink Shared Channel or Physical Uplink Control Channel, configure the transmission carrying out correct/error response message to the binding of terminal or multiplex mode according to base station.

Described terminal is further used on subframe n+K when carrying out error response message and sending, and configures the reason of the response message that to make the mistake to base station instruction to the binding of terminal or multiplex mode according to base station.

The descending allocation index relevant Physical Downlink Control Channel indicating and transmits with Physical Downlink Shared Channel and be correlated with is being transmitted to physical down in described base station, add a descending allocation index DAI territory, for representing the downlink component carrier number for carrying out Physical Downlink Shared Channel transmission distributing to terminal being accumulated to current downlink component carrier in present sub-frame according to certain carrier dispatching order in the descending control information format transmitting relevant Physical Downlink Control Channel to Physical Downlink Shared Channel;

The descending allocation index relevant Physical Downlink Control Channel indicating and transmits with Physical Downlink Shared Channel and be correlated with is being transmitted to physical uplink in described base station, add a descending allocation index DAI territory, for representing in present sub-frame the downlink component carrier number for carrying out Physical Downlink Shared Channel transmission distributing to terminal in the descending control information format transmitting relevant Physical Downlink Control Channel to Physical Uplink Shared Channel.

If terminal has Physical Uplink Shared Channel PUSCH to transmit on subframe n+K, then physically row shared channel feeds back correct/error response message, otherwise, physically row control channel feeds back correct/error response message.Wherein,

What described base station sent transmit relevant Physical Downlink Control Channel in downlink component carrier collection to Physical Uplink Shared Channel sends one.

Multicarrier system under a kind of large bandwidth of the present invention, and the sending method of correct/error response message in this multicarrier system, the transmission of ACK/NACK response message when the downstream arrangements information in multicarrier system that can realize may occur to lose.Further, if feedback NACK response message, terminal can be also the reason that NACK response occurs in base station instruction when sending.Can adopt in two ways, utilize two kinds of channels to feed back, there is good applicability and flexibility.

Accompanying drawing explanation

Schematic diagram when Fig. 1 is ACK/NACK employing bundling pattern transmission;

Fig. 2 is that ACK/NACK adopts bundling pattern to send, and schematic diagram when there occurs downstream arrangements information dropout;

Fig. 3 is that ACK/NACK adopts multiplexing pattern, schematic diagram when PUSCH sends;

Fig. 4 is that ACK/NACK adopts multiplexing pattern, PUSCH sends and downlink transfer contains SPS PDSCH time a schematic diagram;

Fig. 5 is that ACK/NACK adopts multiplexing pattern, PUSCH sends and schematic diagram when there occurs downstream arrangements information dropout;

Fig. 6 is that ACK/NACK adopts multiplexing pattern, PUSCH sends, contains SPS PDSCH transmission in downlink transfer, and another schematic diagram when there occurs downstream arrangements information dropout;

Fig. 7 is that ACK/NACK adopts multiplexing pattern, and PUSCH sends (but this PUSCH does not have corresponding PDCCH) or schematic diagram when sending on PUCCH;

Fig. 8 is that ACK/NACK adopts multiplexing pattern, PUSCH sends (but this PUSCH does not have corresponding PDCCH) or send on PUCCH and downlink transfer contains SPSPDSCH time a schematic diagram;

Fig. 9 is that ACK/NACK adopts multiplexing pattern, PUSCH sends (but this PUSCH does not have corresponding PDCCH) or sends on PUCCH and schematic diagram when there occurs downstream arrangements information dropout;

Figure 10 is that ACK/NACK adopts multiplexing pattern, PUSCH sends (but this PUSCH does not have corresponding PDCCH) or sends on PUCCH, SPSPDSCH transmission is contained in downlink transfer, and schematic diagram when there occurs downstream arrangements information dropout;

Figure 11 is that ACK/NACK adopts multiplexing pattern, PUSCH sends and downlink component carrier number is 5 time a schematic diagram.

Embodiment

For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.

The invention provides a kind of multicarrier system, and the sending method of correct/error response message in this multicarrier system.The present invention is particularly useful for the transmission of the ACK/NACK response message in lte-a system, and can ensure that terminal UE side can correct feeding back ACK/NACK response message, base station side correctly can detect that UE receives the situation of PDSCH.The present invention is mainly for FDD system.

Have employed in the system (such as lte-a system) of carrier aggregation technology, assuming that high-level signaling is passed through in base station, be configured with downlink component carrier collection (Downlink Component carrier Set) S to UE, wherein S contains M downlink component carrier, i.e. S={DLCC ₀, DLCC ₁, DLCC ₂..., DLCC _m-1.When descending scheduling is carried out to UE in base station at every turn, the one or more component carriers in downlink component carrier collection S all can be used to carry out PDSCH transmission.Meanwhile, assuming that the pattern that base station is configured with UE feeding back ACK/NACK response message is bundling (binding) or multiplexing (multiplexing).

A kind of multicarrier system of the present invention, comprising: base station and terminal, wherein:

The sending method of correct/error response message in a kind of multicarrier system of the present invention, comprising:

In above-mentioned multicarrier system and correct/error response message sending method, base station increases descending allocation index (DAI) in (DCI) in the Downlink Control Information of Physical Downlink Control Channel, particularly,

A, a DAI (Downlink Assignment Index is added in base station in the DCI format of the physical downlink control channel PDCCH relevant to Physical Downlink Shared Channel PDSCH transmission, descending allocation index) territory, for representing the downlink component carrier number for carrying out PDSCH transmission distributing to UE being accumulated to current downlink component carrier in present sub-frame according to certain carrier dispatching order.

Here suppose, the downlink component carrier in downlink component carrier collection is numbered in a certain order, during descending scheduling, also on corresponding carrier wave, carries out PDSCH scheduling successively in this order.

B, a DAI (Downlink Assignment Index) territory is added in base station in the DCI format of the physical downlink control channel PDCCH relevant to Physical Uplink Shared Channel PUSCH transmission, for representing in present sub-frame the downlink component carrier number for carrying out PDSCH transmission distributing to UE;

If during the PDSCH that present sub-frame will not send, then the value of DAI is set to 4.Here suppose to concentrate at a downlink component carrier, only have at most a DCI format comprised for upstream components carrier wave PUSCH transmission.

When the DAI territory of above-mentioned interpolation is 2 bit, concrete meaning is as shown in table 1 below:

Table 1: the value of descending allocation index DAI

DAI (high-order, low level)	The value of DAI	The component carrier number of PDSCH transmission
			0，0	1	1 or 5
0，1	2	2
			1，0	3	3
1，1	4	0 or 4

The value in described DAI territory also can be more bits, such as m bit, and concrete bit combination definition can set according to actual conditions, does not repeat them here.

The value in the DAI territory (being called for short up DAI) in the DCI format relevant to Physical Uplink Shared Channel PUSCH transmission is 1, and when detecting more than 1 relevant to descending PDSCH transmission DCIformat, up DAI value is the component carrier number of 1 expression PDSCH transmission is 5;

In like manner, the value in the DAI territory (being called for short descending DAI) in the DCI format relevant to Physical Downlink Shared Channel PDSCH transmission is 1, and when detecting more than 1 relevant to descending PDSCH transmission DCI format, descending DAI value is that to be accumulated to the component carrier number that present component carrier wave distributed to the PDSCH transmission of terminal be 5 in 1 expression.

Base station after according to above-mentioned configuration DAI, according to certain dispatching algorithm on subframe n, can send Physical Downlink Shared Channel PDSCH and corresponding physical downlink control channel PDCCH to terminal.Terminal then detects subframe n, and testing process comprises:

● terminal carries out PDCCH detection according to certain carrier wave order, and establishes V _dAI ^dLfor the value in the DAI territory in last DCI format relevant to PDSCH transmission that terminal detects;

● if terminal detects the PDCCH relevant to PUSCH transmission, then establish V _dAI ^uLfor the value in the DAI territory in corresponding DCI format;

● terminal is actual detect have the component carrier number of the PDSCH transmission of corresponding PDCCH for establishing U _dAI;

● the actual component carrier number of the PDSCH transmission of corresponding PDCCH that do not have detected of terminal is set to N _sPS;

● terminal, according to the downstream arrangements information of the PDCCH detected, carries out PDSCH detection, obtains the ACK/NACK response message that each streams of code words of PDSCH transmission of corresponding downlink component carrier is corresponding; Wherein, for the PDSCH transmission (as SPS PDSCH transmission) not having corresponding PDCCH, configuration information when terminal was transmitted according to the last time carries out PDSCH detection, obtains the ACK/NACK response message that each streams of code words of PDSCH transmission of corresponding component carrier is corresponding.

Terminal detects acquired results according on subframe n, to the process of base station feedback ACK/NACK on subframe n+K, comprises four kinds of combined situation:

(1) adopt ACK/NACK bundling (binding) pattern, row shared channel PUSCH feeds back physically;

(2) ACK/NACK bundling (binding) pattern is adopted, row control channel PUCCH feedback physically;

(3) adopt ACK/NACK multiplexing (multiplexing) pattern, row shared channel PUSCH feeds back physically;

(4) ACK/NACK multiplexing (multiplexing) pattern is adopted, row control channel PUCCH feedback physically;

Be described in detail respectively for these four kinds of feedbacks below.

The first, adopt ACK/NACK bundling (binding) pattern, row shared channel PUSCH feeds back physically;

If terminal has Physical Uplink Shared Channel PUSCH to transmit on subframe n+K, then physically row shared channel PUSCH feeds back correct/error response message.

A1, when this PUSCH transmission has corresponding PDCCH, if had according to the testing process of terminal at subframe n:

(herein, be 2 bits for DAI)

Then terminal can judge to have a downstream arrangements information dropout at least, then all produces NACK signal (the corresponding NACK signal of each streams of code words) to all streams of code words, and now has

Otherwise terminal is thought does not have downstream arrangements information dropout, terminal is by the U issuing this terminal in descending sub frame n _dAI+ N _sPSthe ACK/NACK response message of the corresponding each streams of code words of individual independent PDSCH transmission carries out binding (bundling, also " logical AND " is claimed, only have when whole ACK/NACK response message is ACK, be ACK after binding, otherwise be NACK) operation, obtain the ACK/NACK response message after the binding of 1 bit (correspondence only has the situation of a streams of code words) or 2 bits (situation to two streams of code words should be had), and now have

Work as U _dAI+ N _sPS=0 and then terminal can not send ack/nack signal.

A2, when this PUSCH transmission does not have corresponding PDCCH, at this time, if had according to the testing process of terminal at subframe n then terminal can judge to have a downstream arrangements information dropout at least, then all produces a NACK signal (the corresponding NACK signal of each streams of code words) to all streams of code words.

Otherwise terminal is thought does not have downstream arrangements information dropout, terminal is by the U issuing this terminal in descending sub frame n _dAI+ N _sPSthe ACK/NACK response message of the corresponding each streams of code words of individual independent PDSCH transmission carries out bindings, obtains the ACK/NACK response message after the binding of 1 bit (correspondence only has the situation of a streams of code words) or 2 bits (situation to there being two streams of code words).Now, N _bundled=(U _dAI+ N _sPS).For whether loss being detected, N _bundledvalue be all identical.

Work as U _dAI+ N _sPSwhen=0, UE will not send ack/nack signal.

A3, in above-mentioned A1 or A2, described N _bundledthe selection of scrambler sequence during for carrying out scrambling to the ACK/NACK information after coding, treats with a certain discrimination when detecting for base station side and causes UE to feed back NACK due to downstream arrangements information dropout and cause UE feedback NACK both of these case because PDSCH detects to make mistakes.Base station can be made to know the concrete reason of terminal feedback NACK.

The second, adopts ACK/NACK bundling (binding) pattern, row control channel PUCCH feedback physically;

If terminal does not have Physical Uplink Shared Channel PUSCH to transmit on subframe n+K, then feedback correct/error response message ACK/NACK on row control channel PUCCH physically.

B1, if had according to the testing process of terminal at subframe n then terminal judges to have a downstream arrangements information dropout at least.Downstream arrangements information dropout is there occurs because UE detects, therefore, UE would not send any signal (at this time on PUCCH, this state of UE is called DTX, discontinuous transmission), base station, by detecting predetermined PUCCH, can't detect signal transmission and just can judge that terminal there occurs configuration information and loses.This is because base station for transmission ACK, send NACK, with do not send any signal three kinds of states, the testing result obtained is different.

Otherwise then illustrate and do not lose downstream arrangements information, terminal is by the U issuing this terminal in descending sub frame n _dAI+ N _sPSthe ACK/NACKs of the corresponding each streams of code words of individual independent PDSCH transmission carries out bindings, obtain the ACK/NACK response message after the binding of 1 bit (correspondence only has the situation of a streams of code words) or 2 bits (situation to two streams of code words should be had)

B2, on the PUCCH channel resource then all appointed in terminal and base station, the ACK/NACK after adopting PUCCHformat 1a or 1b to send binding.

The third, adopt ACK/NACK multiplexing (multiplexing) pattern, row shared channel PUSCH feeds back physically;

If terminal has Physical Uplink Shared Channel PUSCH to transmit on subframe n+K, then feedback correct/error response message ACK/NACK on row shared channel PUSCH physically.C1, when this PUSCH transmission has corresponding PDCCH, then except and U _dAI+ N _sPSwhen=0, UE is not outside feeding back ACK/nack message, the number of bits of feedback of other situation ACK/NACK

● special, when and when detecting more than 1 relevant to descending PDSCH transmission DCIformat,

Now, ACK/NACK response message corresponding to each streams of code words of the PDSCH transmission according to PDCCH demodulation on downlink component carrier i first carries out the bindings between streams of code words, obtains ACK/NACK response message after a binding, is mapped to O ^aCKo in individual bit _{dAI (i)-1} ^aCKindividual, wherein O _{dAI (i)-1} ^aCKrepresent the value in DAI territory in the DCI that is correlated with in PDCCH downlink transfer.

If subframe n is upper include SPS PDSCH transmission, namely N _sPSthe situation of > 0, these bindings not having ACK/NACK response message corresponding to each streams of code words of the SPS PDSCH transmission of PDCCH first to carry out between streams of code words, will be mapped to O in a certain order ^aCKlast N in individual bit _sPSposition.

C2, when this PUSCH transmission have there is no corresponding PDCCH time, the size of the downlink component carrier collection S that terminal configures according to base station, determines the bit number O needing feeding back ACK/NACK response message ^aCK=M, M are that configuration is to the number of downlink component carrier in the downlink component carrier collection of this UE.

ACK/NACK response message corresponding to each streams of code words of the PDSCH transmission on downlink component carrier i carries out the bindings between streams of code words, obtains the ACK/NACK response message after a binding.

(include and do not detect PDCCH two kinds of situations) when not detecting PDSCH transmission in certain downlink component carrier, its corresponding ACK/NACK feedback bits is set to NACK.

4th kind, adopt ACK/NACK multiplexing (multiplexing) pattern, row control channel PUCCH feedback physically;

If terminal does not have PUSCH to transmit on subframe n+K, the size of the downlink component carrier collection S that terminal configures according to base station, determines that frame needs the bit number O of feeding back ACK/NACK response message ^aCK=M, M are that configuration is to the number of downlink component carrier in the downlink component carrier collection of this UE.

Then carry out the bindings between streams of code words in the ACK/NACK response message that each streams of code words of the PDSCH transmission of each downlink component carrier is corresponding respectively, obtain the ACK/NACK response message after M binding.

For the words corresponding PDCCH not detected on certain (a bit) downlink component carrier, then corresponding feedback states is DTX, then the feedback states that basis is default and the relation of available PUCCH channel and b (0) b (1), select the PUCCH channel that available, adopt format 1b to send b (0) b (1).This mode is also referred to as Channel assignment.

Under above-mentioned four kinds of send modes, the timing relationship according to descending HARQ is determined in general have K=4 by the value of described K; The described PDCCH relevant to up PUSCH transmission only sends one in downlink component carrier collection.

The invention provides the ACK/NACK feedback scheme of complete set, be applied to and have employed in the system of carrier aggregation technology, under achieving ACK/NACK employing bundling or multiplexing pattern, send on PUSCH and PUCCH respectively.

Embodiment 1: correct/error response message (ACK/NACK) adopts bundling (binding) pattern, physically row shared channel PUSCH feeds back.

Embodiment 1-1: as shown in Figure 1, it is S, S={DLCC that base station configures to the downlink component carrier set of terminal ₀, DLCC ₁, DLCC ₂, DLCC ₃, share M=4 downlink component carrier.It is { DLCC that subframe n dispatches the component carrier carrying out PDSCH transmission to certain terminal UE ₀, DLCC ₁, DLCC ₃, then according to the first feedback system,

DLCC ₀on the value in DAI territory of PDCCH corresponding to PDSCH transmission be 1,

DLCC ₁on the value in DAI territory of PDCCH corresponding to PDSCH transmission be 2,

DLCC ₃on the value in DAI territory of PDCCH corresponding to PDSCH transmission be 3.

Assuming that present sub-frame n does not have SPS to transmit, and base station have sent the PDCCH relevant to PUSCH transmission on certain downlink component carrier, then, after adopting the present invention, the value in the DAI territory of this PDCCH is 3.The ACK/NACK feedback model of terminal is preconfigured to bundling (binding) by base station.Receiver side, suppose that terminal proper reception of PDCCH, then terminal obtains in testing process:

U _DAI＝3，N _SPS＝0

Because terminal detects, subframe n has the PDCCH relevant to PUSCH transmission, therefore, the ACK/NACK information that terminal will be fed back on subframe n+K will be placed on PUSCH and send.

According to testing result: thus terminal judges, in testing process, downstream arrangements information dropout does not occur, thus, meanwhile,

For transmission block #0, terminal will according to carrier wave 0, and 1, the testing result of the PDSCH on 3, is bound into a bit information b (0);

For transmission block #1, terminal will according to carrier wave 0, the testing result of the PDSCH on 3, is bound into another bit information b (1);

The last ACK/NACK feedback information sent on PUSCH is b (0) b (1), b (0) b (1) is mapped on the Resource Unit (RE) appointed after coding, scrambling, modulation, sends together with PUSCH.Wherein, in scrambling processes, N is depended in the selection of scrambler _bundledvalue.

Embodiment 1-2: as shown in Figure 2, it is S, S={DLCC that base station configures to the downlink component carrier set of terminal ₀, DLCC ₁, DLCC ₂, DLCC ₃, share M=4 downlink component carrier.It is { DLCC that subframe n dispatches the component carrier carrying out PDSCH transmission to certain terminal UE ₀, DLCC ₁, DLCC ₃, then according to the first feedback system,

Assuming that present sub-frame n does not have SPS to transmit, and base station have sent the PDCCH relevant to PUSCH transmission on certain downlink component carrier, then, after adopting the present invention, the value in the DAI territory of this PDCCH is 3.The ACK/NACK feedback model of terminal is preconfigured to bundling (binding) by base station.

Receiver side, suppose that terminal does not correctly receive the PDCCH corresponding with the PDSCH on component carrier #1, then terminal obtains in testing process:

U _DAI＝2，N _SPS＝0

According to testing result: thus terminal judges to have the downstream arrangements information dropout of one-component carrier wave at least in testing process, thus,

Meanwhile, feedback bits b (0) b (1) on two transmission blocks (#0, #1) will be set to NACK; The last ACK/NACK feedback information sent on PUSCH is b (0) b (1), b (0) b (1) is mapped on the Resource Unit (RE) appointed after coding, scrambling, modulation, sends together with PUSCH.Wherein, in scrambling processes, N is depended in the selection of scrambler _bundledvalue.

For in above-mentioned two embodiment 1-1,1-2,

If according to PDSCH testing result in embodiment 1-1, dibit feedback information b (0) b (1) finally obtained is NACK, then b (0) b (1) information of embodiment 1-1 and embodiment 1-2 feedback is identical, all NACK, but the reason caused both them is different

Embodiment 1-1 is because PDSCH does not correctly detect, and embodiment 1-2 is the downstream arrangements information owing to lost certain downlink component carrier, thus, undertaken in the middle of the process of scrambling by the bit after giving b (0) b (1) coding, select different scramblers to distinguish both of these case.As can be seen from the above analysis, for embodiment 1-1, choosing of scrambler will according to N _bundled=3 choose, and embodiment 1-2, choosing of scrambler will according to N _bundled=5 choose.

Base station side after receiving the ACK/NACK of terminal feedback, by the NACK that can judge to receive to the descrambling of scrambler sequence because which kind of situation causes.

Embodiment 1-3, as shown in Figure 1, the configuration of base station side is substantially identical with embodiment 1-1, except base station does not have to send the PDCCH relevant to PUSCH transmission on present sub-frame n.

Receiver side, suppose that terminal proper reception of PDCCH, then terminal obtains in testing process:

U _DAI＝3，N _SPS＝0

According to configuration, terminal has PUSCH to send on subframe n+K, but the configuration information of this PUSCH does not obtain on subframe n, and what this situation was corresponding is generally SPS PUSCH transmission.According to testing result: thus terminal judges, in testing process, downstream arrangements information dropout does not occur, thus, and N _bundled=U _dAI+ N _sPS=3.Meanwhile,

Embodiment 1-4, as shown in Figure 2, the configuration of base station side is identical with embodiment 1-3.

U _DAI＝2，N _SPS＝0

Because terminal detects, subframe n has the PDCCH relevant to PUSCH transmission, therefore, the ACK/NACK information that terminal will be fed back on subframe n+K will be placed on PUSCH and send.According to testing result: thus terminal judges to have the downstream arrangements information dropout of one-component carrier wave at least in testing process, thus, and N _bundled=U _dAI+ N _sPS=2.

Meanwhile, feedback bits b (0) b (1) on two transmission blocks will be set to NACK; The last ACK/NACK feedback information sent on PUSCH is b (0) b (1), b (0) b (1) is mapped on the Resource Unit (RE) appointed after coding, scrambling, modulation, sends together with PUSCH.Wherein, in scrambling processes, N is depended in the selection of scrambler _bundledvalue.

For above-mentioned two embodiment 1-3, in 1-4, if according to PDSCH testing result in embodiment 1-3, dibit feedback information b (0) b (1) finally obtained is NACK, then b (0) b (1) information of embodiment 1-3 and embodiment 1-4 feedback is identical, all NACK, but the reason caused both them is different, embodiment 1-3 is because PDSCH does not correctly detect, and embodiment 1-4 is the downstream arrangements information owing to lost certain downlink component carrier, thus, undertaken in the middle of the process of scrambling by the bit after giving b (0) b (1) coding, different scramblers is selected to distinguish both of these case.

As can be seen from the above analysis, for embodiment 1-3, choosing of scrambler will according to N _bundled=3 choose, and embodiment 1-4, choosing of scrambler will according to N _bundled=2 choose.Finally, base station side is by judging to the descrambling of scrambler sequence the NACK that receives causes due to which kind of situation.

Embodiment 2:ACK/NACK adopts multiplexing pattern, and PUSCH feeds back.

Embodiment 2-1: as shown in Figure 3, the configuration of base station side is substantially identical with embodiment 1-1, and the ACK/NACK except terminal is configured to multiplexing pattern.

It is S, S={DLCC that base station configures to the downlink component carrier set of terminal ₀, DLCC ₁, DLCC ₂, DLCC ₃, share M=4 downlink component carrier.It is { DLCC that subframe n dispatches the component carrier carrying out PDSCH transmission to certain terminal UE ₀, DLCC ₁, DLCC ₃, then according to the first feedback system,

Assuming that present sub-frame n does not have SPS to transmit, and base station have sent the PDCCH relevant to PUSCH transmission on certain downlink component carrier, then, after adopting the present invention, the value in the DAI territory of this PDCCH is 3.The ACK/NACK of terminal is configured to multiplexing pattern

U _DAI＝3，N _SPS＝0

Because terminal detects, subframe n has the PDCCH relevant to PUSCH transmission, therefore, the ACK/NACK information that terminal will be fed back on subframe n+K will be placed on PUSCH and send.According to testing result: u _dAI+ N _sPS=3, therefore terminal needs the ACK/NACK bit number of feedback with downlink component carrier #0, the DAI territory of the PDCCH that the PDSCH of #1, #3 is corresponding is respectively 1,2,3, therefore downlink component carrier #0, the corresponding ACK/NACK response message { HARQ_ACK (0) that the ACK/NACK response message of the PDSCH transmission of #1, #3 obtains after the bundling operation between streams of code words, HARQ_ACK (1), HARQ_ACK (2) }, the 1st, 2nd and 3rd of this 3 bit will be mapped to respectively.SPS PDSCH transmission is not had because subframe n is upper, therefore, terminal is finally fed back { HARQ_ACK (0), HARQ_ACK (1), HARQ_ACK (2) } totally 3 bit informations, this 3 bit information, after coded modulation, is mapped on the Resource Unit (RE) appointed, sends together with PUSCH.

Embodiment 2-2: as shown in Figure 4, the configuration of base station side is substantially identical with embodiment 2-1, except there being the SPS PDSCH transmission of UE on component carrier #2.

U _DAI＝3，N _SPS＝1

Because terminal detects, subframe n has the PDCCH relevant to PUSCH transmission, therefore, the ACK/NACK information that terminal will be fed back on subframe n+K will be placed on PUSCH and send.According to testing result, we have: u _dAI+ N _sPS=4, therefore terminal needs the ACK/NACK bit number of feedback with downlink component carrier #0, the DAI territory of the PDCCH that the PDSCH of #1, #3 is corresponding is respectively 1,2,3, therefore downlink component carrier #0, the corresponding ACK/NACK response message { HARQ_ACK (0) that the ACK/NACK response message of the PDSCH transmission of #1, #3 obtains after the bundling operation between streams of code words, HARQ_ACK (1), HARQ_ACK (2) }, the 1st, 2nd and 3rd of this 4 bit will be mapped to respectively.

Due to the component carrier #2 of subframe n having SPS PDSCH transmission, therefore, last position that the corresponding ACK/NACK response message HARQ_ACK (3) that the ACK/NACK response message corresponding to SPS PDSCH transmission obtains after the bundling between streams of code words will be mapped in these 4 bits, with { HARQ_ACK (0), HARQ_ACK (1), HARQ_ACK (2) } together, finally obtain { HARQ_ACK (0), HARQ_ACK (1), HARQ_ACK (2), HARQ_ACK (3) } totally 4 bit informations, this 4 bit information is after coded modulation, be mapped on the Resource Unit (RE) appointed, send together with PUSCH.

Embodiment 2-3: as shown in Figure 5, the configuration of base station side is identical with embodiment 2-1.

U _DAI＝2，N _SPS＝0

Because terminal detects, subframe n has the PDCCH relevant to PUSCH transmission, therefore, the ACK/NACK information that terminal will be fed back on subframe n+K will be placed on PUSCH and send.According to testing result: u _dAI+ N _sPS=2, therefore terminal needs the ACK/NACK bit number of feedback with downlink component carrier #0, the DAI territory of the PDCCH that the PDSCH of #3 is corresponding is respectively 1,3, therefore downlink component carrier #0, the corresponding ACK/NACK response message { HARQ_ACK (0) that the ACK/NACK response message of the PDSCH transmission of #3 obtains after the bundling operation between streams of code words, HARQ_ACK (2) }, the 1st and the 3rd of this 3 bit will be mapped to respectively.Due to terminal can determine the downstream arrangements information dropout of certain downlink component carrier, and according to the DAI information of component carrier #0 and #3, terminal can determine that PDCCH corresponding to the PDSCH transmission on downlink component carrier #1 or #2 there occurs loss, which downlink component carrier terminal concrete cannot know, but, terminal only needs the feedback information of HARQ ACK (1) to be set to NACK, terminal is fed back the most at last { HARQ_ACK (0), HARQ_ACK (1), HARQ_ACK (2) } totally 3 bit informations, this 3 bit information is after coded modulation, be mapped on the Resource Unit (RE) appointed, send together with PUSCH.

Time base station side detects, detect that the information that HARQ_ACK (1) is corresponding is NACK, then can judge it is that downlink component carrier #1 there occurs downstream arrangements information dropout or PDSCH detects mistake.

Embodiment 2-4: as shown in Figure 6, the configuration of base station side is identical with embodiment 2-2.

U _DAI＝2，N _SPS＝1

Because terminal detects, subframe n has the PDCCH relevant to PUSCH transmission, therefore, the ACK/NACK information that terminal will be fed back on subframe n+K will be placed on PUSCH and send.According to testing result: u _dAI+ N _sPS=3, therefore terminal needs the ACK/NACK bit number of feedback with downlink component carrier #0, the DAI territory of the PDCCH that the PDSCH of #3 is corresponding is respectively 1,3, therefore downlink component carrier #0, the corresponding ACK/NACK response message { HARQ_ACK (0) that the ACK/NACK response message of the PDSCH transmission of #3 obtains after the bundling operation between streams of code words, HARQ_ACK (2) }, the 1st and the 3rd of this 3 bit will be mapped to respectively.

Due to the component carrier #2 of subframe n having SPS PDSCH transmission, therefore, last position that the corresponding ACK/NACK response message HARQ_ACK (3) that corresponding to SPS PDSCH transmission ACK/NACK response message obtains after the bundling between streams of code words will be mapped in these 4 bits.

Due to terminal can determine the downstream arrangements information dropout of certain downlink component carrier, and according to the DAI information of component carrier #0 and #3, and terminal knows that downlink component carrier #2 has SPS PDSCH transmission, terminal can determine that PDCCH corresponding to the PDSCH transmission on downlink component carrier #1 there occurs loss.

Therefore, the feedback information of HARQ_ACK (1) is set to NACK by terminal, finally obtain { HARQ_ACK (0), HARQ_ACK (1), HARQ_ACK (2), HARQ_ACK (3) } totally 4 bit informations, this 4 bit information is after coded modulation, be mapped on the Resource Unit (RE) appointed, send together with PUSCH.

From embodiment 2-1 to 2-4, when PUSCH transmission has corresponding PDCCH, the number of bits of feedback of the ACK/NACK of multiplexing employing multiplexing Mode Feedback on PUSCH, will depend on then determine that the ACK/NACK bit of respective component carrier wave is at this O according to the DAI territory of PDCCH _aCKposition in bit;

For downlink component carrier PDSCH not detected, the ACK/NACK bit of its correspondence will be set to NACK, finally by ACK/NACK bit mapping corresponding for SPS PDSCH to this O _aCKlast several of bit.

Embodiment 2-5, as shown in Figure 7, the configuration of base station side is substantially identical with embodiment 2-1, except base station does not have to send the PDCCH relevant to PUSCH transmission on present sub-frame n.

U _DAI＝3，N _SPS＝0

According to configuration, terminal has PUSCH to send on subframe n+K, but the configuration information of this PUSCH does not obtain on subframe n, and what this situation was corresponding is generally SPS PUSCH transmission.At this time, the ACK/NACK bit number that terminal will be fed back is O ^aCK=M=4.Namely whether the ACK/NACK feedback information of corresponding 1 bit of each downlink component carrier (namely detects PDSCH transmission regardless of on this component carrier, all to feed back corresponding ACK/NACK, the words of PDSCH transmission do not detected, corresponding feedback bits position is set to NACK), the numbering of carrier component is corresponding with the 4 bit information orders finally fed back, downlink component carrier #0, #1, the corresponding ACK/NACK response message { HARQ_ACK (0) that the ACK/NACK response message of the PDSCH transmission of #3 obtains after the bundling operation between streams of code words, HARQ_ACK (1), HARQ_ACK (3) }, the 1st of this 4 bit the will be mapped to respectively, 2nd and the 4th.

Because terminal does not detect, downlink component carrier #2 has PDSCH transmission, therefore corresponding with component carrier #2 ACK/NACK feedback bits HARQ_ACK (2) will be set to NACK.In addition, subframe n is upper does not have SPS PDSCH transmission, therefore, terminal is finally fed back { HARQ_ACK (0), HARQ_ACK (1), HARQ_ACK (2), HARQ_ACK (3) } totally 4 bit informations, this 4 bit information, after coded modulation, is mapped on the Resource Unit (RE) appointed, sends together with PUSCH.

Embodiment 2-6: as shown in Figure 8, the configuration of base station side is substantially identical with embodiment 2-2, except base station does not have to send the PDCCH relevant to PUSCH transmission on present sub-frame n.

U _DAI＝3，N _SPS＝1

According to configuration, terminal has PUSCH to send on subframe n+K, but the configuration information of this PUSCH does not obtain on subframe n, and what this situation was corresponding is generally SPS PUSCH transmission.At this time, the ACK/NACK bit number that terminal will be fed back is O ^aCK=M=4.Namely whether the ACK/NACK feedback information of corresponding 1 bit of each downlink component carrier (namely detects PDSCH transmission regardless of on this component carrier, all to feed back corresponding ACK/NACK, the words of PDSCH transmission do not detected, corresponding feedback bits position is set to NACK), the numbering of carrier component is corresponding with the 4 bit information orders finally fed back, downlink component carrier #0, #1, the corresponding ACK/NACK response message { HARQ_ACK (0) that the ACK/NACK response message of the PDSCH transmission of #3 obtains after the bundling operation between streams of code words, HARQ_ACK (1), HARQ_ACK (3) }, the 1st of this 4 bit the will be mapped to successively, 2nd, 4th.

In addition, component carrier #2 there is SPS PDSCH transmission to subframe n, therefore, corresponding ACK/NACK feedback information HARQ_ACK (2) is mapped to the 3rd of this 4 bit by terminal, terminal is finally fed back { HARQ_ACK (0), HARQ_ACK (1), HARQ_ACK (2), HARQ_ACK (3) } totally 4 bit informations, this 4 bit information is after coded modulation, be mapped on the Resource Unit (RE) appointed, send together with PUSCH.

Embodiment 2-7: as shown in Figure 9, the configuration of base station side is identical with embodiment 2-3, except base station does not have to send the PDCCH relevant to PUSCH transmission on present sub-frame n.

U _DAI＝2，N _SPS＝0

According to configuration, terminal has PUSCH to send on subframe n+K, but the configuration information of this PUSCH does not obtain on subframe n, and what this situation was corresponding is generally SPS PUSCH transmission.At this time, the ACK/NACK bit number that terminal will be fed back is O ^aCK=M=4.Namely whether the ACK/NACK feedback information of corresponding 1 bit of each downlink component carrier (namely detects PDSCH transmission regardless of on this component carrier, all to feed back corresponding ACK/NACK, the words of PDSCH transmission do not detected, corresponding feedback bits position is set to NACK), the numbering of carrier component is corresponding with the 4 bit information orders finally fed back, downlink component carrier #0, the corresponding ACK/NACK response message { HARQ_ACK (0) that the ACK/NACK response message of the PDSCH transmission of #3 obtains after the bundling operation between streams of code words, HARQ_ACK (3) }, the the 1st and the 4th of this 4 bit will be mapped to respectively.

Because terminal does not detect, downlink component carrier #2 has PDSCH transmission, therefore corresponding with component carrier #2 ACK/NACK feedback bits HARQ_ACK (2) will be set to NACK.

Simultaneously, because terminal does not correctly receive the PDCCH corresponding with the PDSCH on component carrier #1, thus, terminal also cannot demodulate the PDSCH on component carrier #1, therefore, corresponding with component carrier #1 ACK/NACK feedback bits HARQ_ACK (1) also will be set to NACK.

In addition, subframe n is upper does not have SPS PDSCH transmission, therefore, terminal is finally fed back { HARQ_ACK (0), HARQ_ACK (1), HARQ_ACK (2), HARQ_ACK (3) } totally 4 bit informations, this 4 bit information, after coded modulation, is mapped on the Resource Unit (RE) appointed, sends together with PUSCH.

Embodiment 2-8: as shown in Figure 10, the configuration of base station side is identical with embodiment 2-4, except base station does not have to send the PDCCH relevant to PUSCH transmission on present sub-frame n.

U _DAI＝2，N _SPS＝1

Because terminal does not correctly receive the PDCCH corresponding with the PDSCH on component carrier #1, thus, terminal also cannot demodulate the PDSCH on component carrier #1, and therefore, the ACK/NACK feedback bits HARQ_ACK (1) corresponding with component carrier #1 also will be set to NACK.

From embodiment 2-5 to 2-8, when PUSCH transmission does not have corresponding PDCCH, the number of bits of feedback of the ACK/NACK of multiplexing employing multiplexing Mode Feedback on PUSCH, will depend on O _aCK=M, wherein M is that configuration is to the number of downlink component carrier in the downlink component carrier collection of UE, and whether PDSCH transmission detected regardless of on this component carrier, all to feed back corresponding ACK/NACK, the words (comprise base station really do not carry out PDSCH scheduling on this component carrier and corresponding PDCCH loses two kinds of situations) of PDSCH transmission do not detected, corresponding feedback bits position is all set to NACK.

Embodiment 2-9:

As shown in figure 11, base station configures to the downlink component carrier set of terminal is S, S={DLCC ₀, DLCC ₁, DLCC ₂, DLCC ₃, DLCC ₄, total M=5 downlink component carrier.It is { DLCC that subframe n dispatches the component carrier carrying out PDSCH transmission to certain UE ₀, DLCC ₁, DLCC ₂, DLCC ₃, DLCC ₄, then after adopting the present invention,

DLCC ₂on the value in DAI territory of PDCCH corresponding to PDSCH transmission be 3,

DLCC ₃on the value in DAI territory of PDCCH corresponding to PDSCH transmission be 4,

DLCC ₄on the value in DAI territory of PDCCH corresponding to PDSCH transmission be 1.

Base station have sent the PDCCH relevant to PUSCH transmission on certain downlink component carrier, then, after adopting the present invention, the value in the DAI territory of this PDCCH is 1.The ACK/NACK feedback model of terminal is configured to multiplexing.

U _DAI＝5，N _SPS＝0

Because terminal detects, subframe n has the PDCCH relevant to PUSCH transmission, therefore, the ACK/NACK information that terminal will be fed back on subframe n+K will be placed on PUSCH and send.According to testing result: u _dAI+ N _sPS=5, more than 1 DCI format relevant to descending PDSCH transmission because terminal detects (be actually here and detect U _dAI=5 PDCCHs relevant to PDSCH transmission), therefore terminal needs the ACK/NACK bit number of feedback with downlink component carrier #0, #1, #2, the DAI territory of the PDCCH that the PDSCH of #3 is corresponding is respectively 1,2,3,4, therefore downlink component carrier #0, the corresponding ACK/NACK response message { HARQ_ACK (0) that the ACK/NACK response message of the PDSCH transmission of #1, #2, #3 obtains after the bundling operation between streams of code words, HARQ_ACK (1), HARQ_ACK (2), HARQ_ACK (3) }, the 1st of this 5 bit the will be mapped to respectively, 2nd, 3rd and 4th.

For downlink component carrier #4, due to it its terminal detects the PDCCH relevant to descending PDSCH transmission more than 1, therefore, the ACK/NACK response message HARQ ACK (4) that the ACK/NACK response message of the PDSCH transmission of downlink component carrier #4 obtains after the bundling operation between streams of code words will be mapped to the 5th of the 5 bit feedback information that finally will send.

SPS PDSCH transmission is not had because subframe n is upper, therefore, terminal is finally fed back { HARQ_ACK (0), HARQ_ACK (1), HARQ_ACK (2), HARQ_ACK (3), HARQ_ACK (4) } totally 5 bit informations, this 5 bit information, after coded modulation, is mapped on the Resource Unit (RE) appointed, sends together with PUSCH.

Embodiment 3:ACK/NACK adopts bundling pattern, and PUCCH feeds back.

Embodiment 3-1: as shown in Figure 1, it is S, S={DLCC that base station configures to the downlink component carrier set of terminal ₀, DLCC ₁, DLCC ₂, DLCC ₃, share M=4 downlink component carrier.It is { DLCC that subframe n dispatches the component carrier carrying out PDSCH transmission to certain UE ₀, DLCC ₁, DLCC ₃, then after adopting the present invention,

Assuming that present sub-frame n does not have SPS to transmit, and base station have sent the PDCCH relevant to PUSCH transmission on certain downlink component carrier, then, after adopting the present invention, the value in the DAI territory of this PDCCH is 3.The ACK/NACK feedback model of terminal is configured to bundling.

U _DAI＝3，N _SPS＝0

Because terminal does not have PUSCH to send on subframe n+K, therefore, the ACK/NACK information that terminal will be fed back on subframe n+K will be placed on PUCCH and send.According to testing result: thus terminal judges, in testing process, downstream arrangements information dropout does not occur, for transmission block #0, terminal will according to carrier wave 0,1, the testing result of the PDSCH on 2, is bound into a bit information b (0), for transmission block #1, terminal will according to carrier wave 0, the testing result of the PDSCH on 2, is bound into another bit information b (1); Then on the PUCCH channel resource all appointed in terminal and base station, ACK/NACK bit information b (0) b (1) after adopting PUCCH format 1b to send binding.

Embodiment 3-2: as shown in Figure 2, the configuration of base station side is identical with embodiment 3-1.

U _DAI＝2，N _SPS＝0

Because terminal does not have PUSCH to send on subframe n+K, therefore, the ACK/NACK information that terminal will be fed back on subframe n+K will be placed on PUCCH and send.According to testing result: thus terminal judges the downstream arrangements information dropout having a downlink component carrier in testing process at least, and at this time, terminal will not send any signal.

Embodiment 4:ACK/NACK adopts multiplexing pattern, and PUCCH feeds back.

As shown in Figure 7, base station side configuration is identical with embodiment 3-1, except the feedback model of ACK/NACK is configured to multiplexing.

Because terminal does not have PUSCH to send on subframe n+K, therefore, the ACK/NACK information that terminal will be fed back on subframe n+K will be placed on PUCCH and send.

The size of the downlink component carrier collection S that terminal configures according to base station, determines the bit number O needing feeding back ACK/NACK response message ^aCK=M=4, then respectively bindings is carried out to the ACK/NACK response message of the PDSCH transmission corresponding codewords stream of each downlink component carrier, obtain the feedback states { HARQ_ACK (0) after M binding, HARQ_ACK (1), ..., HARQ_ACK (M-1) }, for the words corresponding PDCCH not detected on certain (a bit) downlink component carrier, then corresponding feedback states is DTX, then the feedback states that basis is default and the relation of available PUCCH channel and b (0) b (1), select the PUCCH channel that available, format 1b is adopted to send b (0) b (1).

Wherein feedback states HARQ_ACK (0), HARQ_ACK (1) ..., HARQ_ACK (M-1) with the mapping relations of available PUCCH channel and b (0) b (1), relevant with the value of M.Some object lessons of mapping relations when following table 2 ~ table 5 gives M=5/4/3/2.

The mapping relations of feedback states and available PUCCH channel and b (0) b (1) during table 2:M=5

The mapping relations of feedback states and available PUCCH channel and b (0) b (1) during table 3:M=4

The mapping relations of feedback states and available PUCCH channel and b (0) b (1) during table 4:M=3

The mapping relations of feedback states and available PUCCH channel and b (0) b (1) during table 5:M=2

The foregoing is only embodiments of the invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within right of the present invention.

Claims

1. the sending method of correct/error response message in multicarrier system, comprising:

Terminal detects Physical Downlink Control Channel, according to transmitting to physical down the descending allocation index that relevant Physical Downlink Control Channel obtains subframe n is according to transmitting to physical uplink the descending allocation index that relevant Physical Downlink Control Channel obtains subframe n be the actual component carrier number with the Physical Downlink Shared Channel transmission of respective physical down control channel detected is the component carrier number that the Physical Downlink Shared Channel of respective physical down control channel transmits is not had to be

Terminal on subframe n+K, according to described u _dAI, N _sPSvalue physically on row shared channel or Physical Uplink Control Channel, configure the transmission carrying out correct/error response message to the binding of terminal or multiplex mode according to base station.

2. sending method as claimed in claim 1, is characterized in that,

3. sending method as claimed in claim 1, is characterized in that,

4. sending method as claimed in claim 3, is characterized in that,

Described terminal detects Physical Downlink Control Channel, according to transmitting to physical down the descending allocation index that relevant Physical Downlink Control Channel obtains subframe n is refer to that terminal carries out Physical Downlink Control Channel detection according to certain carrier wave order, last detecting for terminal transmits the value in the DAI territory in relevant descending control information format to Physical Uplink Shared Channel;

Described terminal detects Physical Downlink Control Channel, according to transmitting to physical uplink the descending allocation index that relevant Physical Downlink Control Channel obtains subframe n is refer to that terminal detects and transmit relevant Physical Downlink Control Channel to Physical Uplink Shared Channel, then establish for the value in the DAI territory in the descending control information format of corresponding Physical Downlink Control Channel.

5. sending method as claimed in claim 1, is characterized in that,

If terminal has Physical Uplink Shared Channel PUSCH to transmit on subframe n+K, then physically row shared channel feeds back correct/error response message, otherwise, physically row control channel feeds back correct/error response message.

6. sending method as claimed in claim 5, is characterized in that,

Terminal adopts binding pattern, and physically during row shared channel feedback correct/error response message, first judged whether at least one downstream arrangements information dropout, if having, all streams of code words all produce wrong responses signal; Otherwise by U _dAI+ N _sPSthe correct/error response message of the corresponding each streams of code words of individual separate physical DSCH Downlink Shared Channel transmission is bound, by the row shared channel feedback physically of the correct/error response message after binding.

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

After terminal is bound correct/error response message, need to send wrong responses signal, determine corresponding binding number, adopt this binding number to select scrambling to error response message.

8. sending method as claimed in claim 5, is characterized in that,

Terminal adopts binding pattern, and physically during row control channel feedback correct/error response message, first judged whether at least one downstream arrangements information dropout, if having, then terminal does not send any correct/error answer signal; Otherwise by U _dAI+ N _sPSthe correct/error response message of the corresponding each streams of code words of individual separate physical DSCH Downlink Shared Channel transmission is bound, by the row control channel feedback physically of the correct/error response message after binding.

9. sending method as claimed in claim 8, is characterized in that,

Correct/error response message after terminal adopts form 1a or 1b of Physical Uplink Control Channel to send binding.

10. sending method as claimed in claim 5, is characterized in that,

Terminal adopts multiplexer mode, physically during row shared channel feedback correct/error response message, first according to the number of downlink component carrier in downlink component carrier collection or described in determine the number of bits of feedback of correct/error response message, then after the bindings between streams of code words is carried out to the correct/error response message that each streams of code words detects, bound values to be mapped in number of bits of feedback in corresponding bit.

11. sending methods as claimed in claim 5, is characterized in that,

Terminal adopts multiplexer mode, physically during row control channel feedback correct/error response message,

First according to the number of bits of feedback of the number determination correct/error response message of downlink component carrier in downlink component carrier collection, after bindings between streams of code words is carried out to the correct/error response message that each streams of code words detects, obtain the correct/error response message after the several binding of feedback bits;

Select the Physical Uplink Control Channel that available again, the correct/error response message after adopting form 1b to send binding.

12. sending methods as described in claim 1 or 5, is characterized in that,

13. sending methods as described in claim 1 or 3, is characterized in that, describedly transmit relevant Physical Downlink Control Channel to Physical Uplink Shared Channel only send one in downlink component carrier collection.

14. 1 kinds of multicarrier systems, comprising: base station and terminal, wherein:

Terminal, for detecting Physical Downlink Control Channel, according to transmitting to physical down the descending allocation index that relevant Physical Downlink Control Channel obtains subframe n is according to transmitting to physical uplink the descending allocation index that relevant Physical Downlink Control Channel obtains subframe n be the actual component carrier number with the Physical Downlink Shared Channel transmission of respective physical down control channel detected is U _dAI, do not have the component carrier number that the Physical Downlink Shared Channel of respective physical down control channel transmits to be N _sPS;

Terminal, also for the downstream arrangements information according to the Physical Downlink Control Channel detected, carry out Physical Downlink Shared Channel detection, the Physical Downlink Shared Channel obtaining corresponding downlink component carrier transmits correct/error response message corresponding to each streams of code words; Terminal on subframe n+K, according to described u _dAI, N _sPSvalue physically on row shared channel or Physical Uplink Control Channel, configure the transmission carrying out correct/error response message to the binding of terminal or multiplex mode according to base station.

15. multicarrier systems as claimed in claim 14, is characterized in that,

16. multicarrier systems as claimed in claim 14, is characterized in that,

17. multicarrier systems as claimed in claim 16, is characterized in that,

18. multicarrier systems as claimed in claim 14, is characterized in that,

19. multicarrier systems as claimed in claim 18, is characterized in that,

20. multicarrier systems as claimed in claim 18, is characterized in that,

21. multicarrier systems as claimed in claim 18, is characterized in that,

22. multicarrier systems as claimed in claim 18, is characterized in that,