CN102064921B - A kind of sending method of response message and user terminal - Google Patents

Abstract

The invention discloses a kind of sending method and user terminal of response message, the problem of ACK/NACK response message cannot be sent under solving carrier aggregation scene on PUSCH.The present invention is under the scene of carrier aggregation, first UE obtains the bit sequence needing the ACK/NACK response message sent, then calculate the coded modulation symbol numbers needed for bit sequence sending described ACK/NACK response message on PUSCH, on PUSCH, finally send described ACK/NACK response message.The present invention effectively solves the problem that ACK/NACK response message under carrier aggregation scene sends on PUSCH.

Description

A kind of sending method of response message and user terminal

Technical field

The present invention relates to field of mobile wireless communication, particularly relate to sending method and the user terminal (UserEquipment, UE) of response message in wireless communication system.

Background technology

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

In above-mentioned two kinds of frame structures, adopt standard cyclic prefix (NormalCyclicPrefix, NormalCP) time, 7 symbols are comprised in a time slot, adopt extended cyclic prefix (ExtendedCyclicPrefix, ExtendedCP), time, 6 symbols in a time slot, are comprised.

The uplink-downlink configuration that each subframe is supported is as shown in table 1.Wherein, " D " represents the subframe being exclusively used in downlink transfer; " U " represents the subframe being exclusively used in uplink; " S " represents for DwPTS (DownlinkPilotTimeSlot; descending pilot frequency time slot), protection interval (GuardPeriod; and the special subframe in UpPTS (UplinkPilotTimeSlot, uplink pilot time slot) these three territories GP).

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

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

In FDD system, because ascending-descending subframes is one to one, so as Physical Downlink Shared Channel (PhyasicalDownlinkSharedChannel, when PDSCH) only comprising a streams of code words, user terminal will feed back the ACK/NACK response message of 1 bit, when PDSCH comprises two streams of code words, UE will feed back the ACK/NACK response message of 2 bits, when UE does not have PUSCH (PhysicalUplinkShareChannel at present sub-frame, Physical Uplink Shared Channel) when will send, UE will at PUCCH (PhysicalUplinkControlChannel, Physical Uplink Control Channel) the upper ACK/NACK response message adopting form 1a/1b to send this 1 bit or 2 bits, and when UE has PUSCH to send at present sub-frame, then UE is by this 1 bit or 2 bit informations, through the mapping of certain ACK/NACK state to corresponding bits, after chnnel coding, scrambling, modulation together with data-reusing, then send on PUSCH.

In TDD system, because ascending-descending subframes is not one to one, that is the ACK/NACK response message that multiple descending sub frame is corresponding needs to send on the PUCCH/PUSCH channel of a sub-frame of uplink, and the descending sub frame set that wherein sub-frame of uplink is corresponding constitutes binding window (bundlingwindoW).In LTETDD, the transmission of definition two kinds of ACK/NACK response messages: one is that ACK/NACK binds (ACK/NACKbundling) method, and one is ACK/NACK multiplexing (multiplexing) method: high-rise configuration UE adopts the method feeding back ACK/NACK of bundling or mulitplexing.The basic thought of bundling method is that the ACK/NACK message of streams of code words corresponding for each descending sub frame needing to feed back at this sub-frame of uplink is carried out logic and operation (timedomainbundling), obtain the ACK/NACK response message of 1 bit or 2 bits, when UE does not have PUSCH to send at present sub-frame, UE will adopt form 1a/1b to send the ACK/NACK response message of this 1 bit or 2 bits on PUCCH; When UE has PUSCH to send at present sub-frame, UE, by this 1 bit or 2 bit informations, sends after certain chnnel coding, channel interleaving on PUSCH.The core concept of multiplexing method is the different feedback states utilizing different modulation symbol on different PUCCH channels and this channel to represent the descending sub frame that needs feed back at this sub-frame of uplink, if descending sub frame there is multiple transmission block, carry out Channel assignment again after so first the ACK/NACK of multiple transmission block feedbacks of descending sub frame being carried out logical AND (spatialbundling), then use PUCCHformat1b to send.When UE does not have PUSCH to send at present sub-frame, UE selects the mode of (format1bwithchannelselection) to send this multiple ACK/NACK response message by adopting form 1b combined channel on PUCCH; When UE has PUSCH to send at present sub-frame, then UE is by multiple bit information, through the mapping of certain ACK/NACK state to corresponding bits, after chnnel coding, channel interleaving together with data-reusing, then sends on PUSCH.

Wherein, cataloged procedure when response message transmits on PUSCH comprises:

(formula 1)

First the number Q ' of required coded identification is calculated according to above-mentioned (formula 1) _aCK; Wherein O represents the bit number of ascending control information to be sent; represent that present sub-frame is used for the bandwidth of PUSCH transmission, represent with variable number; represent in initial p USCH transmission for except demodulated reference signal (DemodulationReferenceSignal, DMRS) and measuring reference signals (SoundingReferenceSignal, SRS) symbol numbers outward; represent bandwidth during initial p USCH transmission, represent with subcarrier number; C represents the code block number that this transmission block is corresponding after CRC and code block segmentation; K _rrepresent the bit number that each code block of this transmission block is corresponding; For identical transmission block, C, K _rwith obtain from initial PDCCH; When there is no the PDCCH of initial DCI format 0, c and K _rcan be obtained by following two kinds of modes: (1), when initial PUSCH adopts semi-persistent scheduling, can obtain from the PDCCH of nearest semi-persistent scheduling configuration; (2) when PUSCH is by accidental access response grant triggers, then obtain from the accidental access response mandate that same transmission is corresponding; represent or this value is configured by high level; Then carry out chnnel coding, the bit after being encoded by ACK/NACK response message repeats, until meet target length Q _aCK=Q ' _aCK* Q _mtill, the information bit after coding is designated as respectively according to order of modulation, generate corresponding coded modulation sequence will transmit after carrying out channel interleaving with the ascending control information after the data after coding and/or other codings.

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

Under carrier aggregation scene, the corresponding sub-frame of uplink of multiple descending sub frame, and, each descending sub frame there is multiple community, each community can by a transport block transmission according to transmission mode difference, also can by two transport block transmission, specify in prior art: in LTE-A tdd systems, when ACK/NACK response message sends on PUCCH, define two kinds of send modes: adopt PUCCHformat1bwithchannelselection and DFT-s-OFDM mode (PUCCHformat3), when adopting format1bwithchannelselection to send ACK/NACK response message, for the ACK/NACK response message being less than or equal to 4 bits, do not adopt bundling, for the ACK/NACK response message being greater than 4 bits, spatialbundling and time-domainbundling can be adopted, when adopting format3 to send ACK/NACK response message, the maximum load of the ACK/NACK response message sent is 20 bits, but prior art does not provide the mapping relations of ACK/NACK response message when PUSCH transmission and the defining method of load, thus the transmission of ACK/NACK response message on PUSCH cannot be realized.

Summary of the invention

In view of this, main purpose of the present invention is to provide the transmission method of a kind of ACK/NACK response message physically on row shared channel and corresponding user terminal, cannot send the problem of ACK/NACK response message under solving carrier aggregation scene on PUSCH.

For achieving the above object, technical scheme of the present invention is achieved in that

Fig. 3 is the flow chart of the sending method of a kind of response message provided by the invention, and described response message refers to that UE is to the correct of base station feedback or mistake (ACK/NACK) response message, and key step is as follows:

Step 302: under the scene of carrier aggregation, UE obtains the ACK/NACK response message bit sequence needing to send according to relevant information;

Step 304:UE calculates the coded modulation symbol numbers needed for bit sequence sending described ACK/NACK response message on PUSCH;

Step 306:UE sends ACK/NACK response message on PUSCH;

Wherein in step 302, UE obtains according to relevant information and needs the ACK/NACK response message bit sequence sent to refer to: the number of the transmission mode of downlink component carrier (or community) that UE configure according to base station number, the ascending-descending subframes proportionate relationship of configuration, each downlink component carrier of configuration and the upper ACK/NACK response message bit sent to multipotency of PUSCH determines the ACK/NACK response message needing to send, by the bit sequence that the ACK/NACK response message of described needs transmission is mapped to;

Or in step 302, the feedback model that UE configures according to high level obtains the bit sequence needing the ACK/NACK response message sent:

If the mode that high-rise configuration adopts form 1b combined channel to select sends ACK/NACK response message, then determine the ACK/NACK response message bit sequence needing to send according to the ACK/NACK information in the mapping table of channel selective mode;

If high-rise configuration adopts the mode of form 3 to send ACK/NACK response message, then determine the ACK/NACK response message needing to send according to the number of the upper ACK/NACK response message bit sent to multipotency of the downlink component carrier number of UE configuration, the transmission mode of each downlink component carrier configuration, ascending-descending subframes proportionate relationship and PUSCH, and the described ACK/NACK response message of transmission that needs is mapped in bit sequence.

Further illustrate, if send the ACK/NACK response message of 40 bits on PUSCH to multipotency, then according to component carrier (or community) after first streams of code words, the order of subframe again, or subframe after first streams of code words, the order of component carrier (or community) again, is mapped to corresponding ACK/NACK response message in bit sequence and goes;

Further illustrate, if send the ACK/NACK response message of M-bit to multipotency on PUSCH, and current when needing the ACK/NACK response message sent to exceed M-bit, one of in the following manner can obtain ACK/NACK bit sequence:

When mode one: ACK/NACK response message is mapped to bit sequence, after ACK/NACK response message corresponding for all PDSCH comprising 2 streams of code words is carried out logical AND operation, the ACK/NACK response message after being operated by logical AND is mapped in corresponding bit sequence;

Mode two: corresponding for PDSCH 2 ACK/NACK response messages are carried out logical AND operation according to predefined method, until need total bit number of the ACK/NACK response message sent to be no more than M-bit, then the ACK/NACK response message after being operated by logical AND is mapped in corresponding bit sequence, and wherein said predefined method is one of following methods:

(1) ACK/NACK response message corresponding for the PDSCH comprising 2 streams of code words in all auxiliary component carriers (or community) is carried out logical AND operation;

Illustrate further, if total bit number of the ACK/NACK response message after ACK/NACK response message corresponding for the PDSCH comprising 2 streams of code words in all auxiliary component carriers (or community) is carried out logical AND operation also exceedes M-bit, then ACK/NACK response message corresponding for the PDSCH comprising 2 streams of code words in principal component carrier wave is carried out logical AND operation;

(2) according to component carrier (or community) priority order from low to high, ACK/NACK response message corresponding for PDSCH comprising 2 streams of code words all in described component carrier (or community) is carried out logical AND operation, until total bit number of ACK/NACK response message is no more than M;

(3) according to subframe sequencing, ACK/NACK response message corresponding for the PDSCH comprising 2 streams of code words in all component carriers (or community) corresponding for subframe is carried out logical AND operation, until total bit number of ACK/NACK response message is no more than M;

(4) according to the order of component carrier (community) after first subframe or first component carrier (or community) subframe afterwards, all PDSCH are sorted, according to order from back to front or from front to back, one by one ACK/NACK response message corresponding for the PDSCH comprising 2 streams of code words is carried out logical AND operation, until total bit number of ACK/NACK response message is no more than M;

Illustrate further, M is the fixing value that base station and UE appoint, M ∈ { 20,21,22,23,24,25,26}

When being mapped in bit sequence by described ACK/NACK response message, the method for described mapping is one of following methods:

Method one: map according to predefined component carrier order, ACK/NACK response message for same component carrier maps according to subframe sequencing or maps according to the value of the descending allocation index (DAI) in downstream grants information (DLassignment), and the ACK/NACK response message of semi-static continuous dispatching release is positioned at the ACK/NACK response message foremost or backmost of its place component carrier feedback;

Wherein, predefined component carrier order is high-rise configuration, or predefined component carrier order is component carrier indexed sequential, or former head's component carrier is auxiliary component carrier again;

The ACK/NACK response message quantity of each component carrier feedback is determined by the descending sub frame quantity configured and transmission mode, or, determined by the value of the descending allocation index in the descending sub frame quantity configured and transmission mode, uplink authorization information (ULgrant);

Method two: map according to the sequencing of subframe, the ACK/NACK response message in same subframe is according to predefined component carrier Sequential Mapping;

Wherein, predefined component carrier order is high-rise configuration, or predefined component carrier order is component carrier indexed sequential, or former head's component carrier is auxiliary component carrier again.

Further illustrate, when UE does not detect PDSCH on the corresponding downlink component carrier (or community) configured, then its corresponding response message is set to NACK;

Further, when certain streams of code words (transmission block) in two streams of code words (transmission block) corresponding to base station configuration PDSCH not enable and send ACK/NACK response message corresponding to this PDSCH do not carry out logical AND operation time, the response message of the streams of code words that transmission block not enable is so corresponding is set to NACK;

Further, when certain streams of code words in two streams of code words (transmission block) corresponding to base station configuration PDSCH not enable and send ACK/NACK response message corresponding to this PDSCH carry out logical AND operation time, the ACK/NACK response message of streams of code words (transmission block) correspondence not enable is so set to ACK, or the ACK/NACK response message logical AND operating result that this PDSCH is corresponding is the ACK/NACK response message of enable streams of code words (transmission block) correspondence;

Further illustrate, the described method obtaining the ACK/NACK response message bit sequence that needs send also is applicable to and adopts form 3 to send ACK/NACK response message on PUCCH;

Further illustrate, in the present invention, correct response message (ACK) is corresponding to binary " 1 ", and wrong responses information (NACK) is corresponding to binary " 0 ".

Wherein in step 304, if do not adopt two Reed-Muller code (DualReed-Muller when ACK/NACK response message transmits on PUSCH, DualRM) mode is encoded, calculate on PUSCH, send described ACK/NACK response message bit sequence needed for coded modulation symbol numbers time, the bit number O of ascending control information to be sent obtains one of in the following manner:

(1) when UE is according to uplink authorization ULgrant information transmission PUSCH, or or or when UE is not according to uplink authorization information ULgrant information transmission PUSCH, O equals the length of the bit sequence of the ACK/NACK response message obtained; Wherein, refer to the descending allocation index in uplink authorization information ULgrant, expression be the maximum that base station sends in the descending sub frame number of scheduled feedback ACK/NACK response message in the sum of the PDSCH of UE or all component carriers; As long as have corresponding 2 transmission blocks of a PDSCH, TB _max=2; Otherwise, TB _max=1; TB _max(c), c=0,1 ... C-1 represents the maximum of transmission block in component carrier c, and C is the number of the component carrier of UE configuration; O _maxrepresent the maximum number bits of UE feeding back ACK/NACK response message, k represents descending sub frame number in the ascending-descending subframes proportionate relationship of configuration, TB _xrepresent each to configure to correct and wrong answer maximum number bits corresponding to the PDSCH on the downlink component carrier of UE, or, O _maxrepresent the maximum number bits of described ACK/NACK response message through logical AND operational feedback;

(2) O equals the bit sequence length that obtains;

(3) O equals the quantity of the ACK/NACK response message of TB corresponding A CK/NACK response message that UE receives and the release of semi-static continuous dispatching;

Further, if adopt the mode of DualRM to encode when ACK/NACK response message transmits on PUSCH, and the coded modulation symbol numbers needed for calculating is combined calculation, the bit number O of ascending control information to be sent during calculating obtains one of in the following manner:

(1) when UE is according to uplink authorization ULgrant information transmission PUSCH, when UE is not according to ULgrant information transmission PUSCH, O equals the length of the bit sequence of the ACK/NACK response message obtained; what represent is the maximum being assigned to the PDSCH sum that ACK/NACK response message is corresponding in two RM;

(2) when UE is according to uplink authorization ULgrant information transmission PUSCH, or or or when UE is not according to uplink authorization information ULgrant information transmission PUSCH, O equals the length of the bit sequence of the ACK/NACK response message obtained; Wherein, what represent is the maximum that base station sends in the descending sub frame number of scheduled feedback ACK/NACK response message in the sum of the PDSCH of UE or all component carriers; As long as have corresponding 2 transmission blocks of a PDSCH, TB _max=2; Otherwise, TB _max=1; TB _max(c), c=0,1 ... C-1 represents the maximum of transmission block in component carrier c, and C is the number of the component carrier of UE configuration; O _maxrepresent the maximum number bits of UE feeding back ACK/NACK response message, k represents descending sub frame number in the ascending-descending subframes proportionate relationship of configuration, TB _xrepresent each to configure to correct and wrong answer maximum number bits corresponding to the PDSCH on the downlink component carrier of UE, or, O _maxrepresent the maximum number bits of described ACK/NACK response message through logical AND operational feedback;

(3) O equals the length of the bit sequence of the ACK/NACK response message obtained;

(4) O equals the quantity of the ACK/NACK response message of TB corresponding A CK/NACK response message that UE receives and the release of semi-static continuous dispatching.

Further, if adopt the mode of DualRM to encode when ACK/NACK response message transmits on PUSCH, and the coded modulation symbol numbers needed for calculating is independent calculating, the bit number O of ascending control information to be sent during calculating ¹, O ²obtain one of in the following manner:

(1) when UE is according to uplink authorization ULgrant information transmission PUSCH, when UE is not according to uplink authorization ULgrant information transmission PUSCH, wherein, O ¹, O ²when independently calculating respectively, ascending control information bit number to be sent, what represent is the maximum being assigned to the PDSCH sum that ACK/NACK response message is corresponding in two RM, the length of what N represented the is bit sequence of the ACK/NACK response message obtained;

(2) the length of what N represented the is bit sequence of the ACK/NACK response message obtained;

(3) when UE is according to uplink authorization ULgrant information transmission PUSCH, or when UE is not according to uplink authorization ULgrant information transmission PUSCH, the length of what N represented the is bit sequence of the ACK/NACK response message obtained, represent the maximum in the descending sub frame number of scheduled feedback ACK/NACK response message in all component carriers; As long as have corresponding 2 transmission blocks of a PDSCH, TB _max=2; Otherwise, TB _max=1; TB _max(c), c=0,1 ... C-1 represents the maximum of transmission block in component carrier c, and C is the number of the component carrier of configuration; k represents descending sub frame number in the ascending-descending subframes proportionate relationship of configuration, TB _xrepresent each to configure to correct and wrong answer maximum number bits corresponding to the PDSCH on the downlink component carrier of UE, or, O _maxrepresent the maximum number bits of described ACK/NACK response message through logical AND operational feedback;

(4) O ¹the TB corresponding A CK/NACK response message that expression UE receives is mapped in the quantity in a Reed-Muller code; O ²the TB corresponding A CK/NACK response message that expression UE receives is mapped in the quantity in another Reed-Muller code.

Further, described in determine according to DAI in uplink authorization information, wherein, when there being multiple uplink authorization information to send to UE, in uplink authorization information, DAI value is identical.

Further, wherein in step 306, UE sends ACK/NACK response message and refers on PUSCH: the ACK/NACK bit sequence of generation is encoded according to corresponding coded system by UE, the sequence after encoding is obtained according to the modulation symbol number after coding, by after channel interleaving together with data-reusing, then send on PUSCH.

A kind of user terminal provided by the invention comprises: acquisition module, computing module and sending module, and described acquisition module needs the bit sequence of the ACK/NACK response message sent for obtaining; Computing module is for calculating the coded modulation symbol numbers needed for the bit sequence sending described ACK/NACK response message on PUSCH; Described sending module for sending described ACK/NACK response message on PUSCH.Above-mentioned module is all sending method for realizing ACK/NACK response message provided by the invention and establishes, and the concrete technical scheme of described method all can be embodied in the interactive relation between the function of described each module and each module, repeats no more herein.

Note: when step 304 and step 302 are incoherent time, the two order can be exchanged;

According to the transmission method on a kind of ACK/NACK response message provided by the invention physically row shared channel, effectively solve the problem that ACK/NACK response message under carrier aggregation scene sends on PUSCH.

Accompanying drawing explanation

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

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

Fig. 3 is the schematic flow sheet of the sending method of response message of the present invention;

Fig. 4 is the schematic diagram of the embodiment of the present invention one;

Fig. 5 is the schematic diagram of the determination ACK/NACK bit sequence of the embodiment of the present invention two mode one;

Fig. 6 is the schematic diagram of the determination ACK/NACK bit sequence of the embodiment of the present invention two mode two;

Fig. 7 is the schematic diagram of the determination ACK/NACK bit sequence of the embodiment of the present invention two mode three;

Fig. 8 is the schematic diagram of the determination ACK/NACK bit sequence of the embodiment of the present invention two mode four;

Fig. 9 is the schematic diagram of the determination ACK/NACK bit sequence of the embodiment of the present invention two mode five.

Embodiment

For making the object, technical solutions and advantages of the present invention clearly understand, by the following examples also with reference to accompanying drawing, the present invention is described in more detail.

Embodiment one:

As shown in Figure 4, in TDD system, suppose that base station is configured with 4 downlink component carrier (or community) { DLCC#0 to UE, DLCC#1, DLCC#2, DLCC#3}, and the ACK/NACK response message needing feedback 2 bit, suppose that a certain sub-frame of uplink needs feeding back downlink subframe #n, #n+1 and #n+2 simultaneously to have the ACK/NACK response message of 3 descending sub frames altogether simultaneously; The upper ACK/NACK response message sent to multipotency of PUSCH is 40 bits; Do not adopt DualRM code to encode when ACK/NACK response message transmits on PUSCH, carry out according to ULgrant during the transmission of PUSCH, and correspondence only has a transmission block.

Step 402:UE to the transmission mode of the downlink component carrier of terminal configuration (or community) number, the up-downgoing proportionate relationship of configuration and each downlink component carrier of configuration, determines the bit sequence of the ACK/NACK response message needing feedback according to base station.Terminal is according to subframe after first streams of code words, then the ACK/NACK response message obtained accordingly to be mapped in bit sequence and to go by component carrier (or community) order, and wherein the length of bit sequence is 24;

Coded identification number required when step 404:UE sends above-mentioned ACK/NACK response message bit sequence according to associated information calculation, during calculation code symbol numbers, O value is determined according to one of under type:

(1) because the PUSCH of transmission carries out according to ULgrant, during calculation code modulation symbol number, or or or the coded modulation symbol numbers of UE needed for the length computation of the bit sequence obtained;

(2) O=bit sequence length;

(3) the transmission block number that receives of O=;

Wherein, what represent is the maximum that base station sends in the sum of the PDSCH of UE or all component carriers (or community) in descending sub frame number, when corresponding 2 transmission blocks of arbitrary PDSCH, and TB _max=2; Otherwise, TB _max=1; TB _max(c), c=0,1 ... C-1 represents the maximum of transmission block in component carrier (or community) C, if i.e. corresponding 2 transmission blocks of arbitrary PDSCH in this component carrier (or community) C, and TB _max(C)=2, otherwise TB _max(C)=1, M represent descending sub frame number in the ascending-descending subframes proportionate relationship of configuration, what N represented is downlink component carrier number, TB _xrepresent each configuration needs to send ACK/NACK response message bit number to the downlink component carrier of UE (or community);

The bit sequence of the ACK/NACK response message of generation carries out encoding, obtaining the sequence after encoding according to the modulation symbol number after coding according to corresponding coded system by step 406:UE, by after channel interleaving together with data-reusing, then send on PUSCH.

Embodiment two:

As shown in Fig. 5 ~ Fig. 9, in TDD system, suppose that base station is configured with 4 downlink component carrier (or community) { DLCC#0 to UE, DLCC#1, DLCC#2, DLCC#3}, wherein DLCC#0/1/3 needs the ACK/NACK response message of feedback 2 bit, DLCC#2 needs the ACK/NACK response message of feedback 1 bit, supposes that a certain sub-frame of uplink needs feeding back downlink subframe #n, #n+1 and #n+2 simultaneously to have the ACK/NACK response message of 3 descending sub frames altogether simultaneously; The upper ACK/NACK response message sent to multipotency of PUSCH is M-bit and base station and UE appoint M=20; Adopt DualRM code to encode when ACK/NACK response message transmits on PUSCH, carry out according to ULgrant during the transmission of PUSCH, and correspondence only has a transmission block.

The transmission mode of the up-downgoing proportionate relationship that step 602:UE counts to the downlink component carrier of terminal configuration (or community) according to base station, configure and each downlink component carrier of configuration, determine the bit sequence of the ACK/NACK response message needing feedback, because the ACK/NACK response message that PUSCH sends to multipotency is 20 bits; ACK/NACK bit sequence is obtained according to such as under type;

Mode one: as shown in Figure 5, after ACK/NACK response message corresponding for all PDSCH comprising 2 streams of code words is carried out logical AND operation, according to the order of component carrier (or community) after first subframe, the ACK/NACK response message obtained is mapped in corresponding bit sequence;

Mode two: as shown in Figure 6, wherein, DLCC#0 is principal component carrier wave (or main plot), DLCC#1/2/3 is auxiliary component carrier (or community), after ACK/NACK response message corresponding for the PDSCH comprising 2 streams of code words in auxiliary component carrier is carried out logical AND operation, according to the order of component carrier (or community) after first subframe, the ACK/NACK response message obtained is mapped in corresponding bit sequence;

Mode three: as shown in Figure 7, suppose that the priority of DLCC#0 is the highest, the priority of DLCC#3 is minimum, information bit just can be made to be no more than M because only need that ACK/NACK response message corresponding for PDSCH comprising 2 streams of code words all in DLCC3 minimum for priority is carried out logical AND operation, so ACK/NACK response message corresponding for the PDSCH comprising 2 streams of code words in DLCC#3 is carried out logical AND operation, according to the order of component carrier (or community) after first subframe, the ACK/NACK response message obtained is mapped in corresponding bit sequence;

Mode four: as shown in Figure 8, only needing ACK/NACK response message corresponding for the PDSCH comprising 2 streams of code words in all component carriers (or community) corresponding for subframe #n to be carried out logical AND operation just can make information bit be no more than 20, all ACK/NACK response message corresponding for the PDSCH comprising 2 streams of code words in subframe #n is carried out logical AND operation, according to the order of component carrier (or community) after first subframe, the ACK/NACK response message obtained is mapped in corresponding bit sequence;

Mode five: as shown in Figure 9, information bit just can be made to be no more than 20 because only need ACK/NACK response message corresponding for PDSCH to be carried out logical AND operation, so all PDSCH are sorted according to the order of component carrier (or community) after first subframe, according to order from back to front by DLCC#3, the ACK/NACK response message that on subframe #n+2, PDSCH is corresponding carries out logical AND operation, is mapped in corresponding bit sequence according to the order of component carrier (or community) after first subframe by the ACK/NACK response message obtained;

Coded identification number required when step 604:UE sends above-mentioned ACK/NACK response message bit sequence according to associated information calculation, during calculation code symbol numbers:

If when ACK/NACK response message transmits on PUSCH, the coded modulation symbol numbers needed for calculating is combined calculation, and O value can be determined according to one of under type:

(1) when UE is according to uplink authorization ULgrant information transmission PUSCH, when UE is not according to ULgrant information transmission PUSCH, O equals the length of the bit sequence of the ACK/NACK response message obtained; what represent is the maximum being assigned to the PDSCH sum that ACK/NACK response message is corresponding in two RM;

(2) O equals the length of the bit sequence of the ACK/NACK response message obtained;

(3) O equals the quantity of the ACK/NACK response message of TB corresponding A CK/NACK response message that UE receives and the release of semi-static continuous dispatching;

(4) when UE is according to uplink authorization ULgrant information transmission PUSCH, or or or when UE is not according to uplink authorization information ULgrant information transmission PUSCH, O equals the length of the bit sequence of the ACK/NACK response message obtained; Wherein, what represent is the maximum that base station sends in the descending sub frame number of scheduled feedback ACK/NACK response message in the sum of the PDSCH of UE or all component carriers; As long as have corresponding 2 transmission blocks of a PDSCH, TB _max=2; Otherwise, TB _max=1; TB _max(c), c=0,1 ... C-1 represents the maximum of transmission block in component carrier c, and C is the number of the component carrier of UE configuration; O _maxrepresent the maximum number bits of UE feeding back ACK/NACK response message, k represents descending sub frame number in the ascending-descending subframes proportionate relationship of configuration, TB _xrepresent each to configure to correct and wrong answer maximum number bits corresponding to the PDSCH on the downlink component carrier of UE, or, O _maxrepresent the maximum number bits of described ACK/NACK response message through logical AND operational feedback; If when ACK/NACK response message transmits on PUSCH, the coded modulation symbol numbers needed for calculating is independent calculating, and O value can be determined according to one of under type:

(1) when UE is according to uplink authorization ULgrant information transmission PUSCH, when UE is not according to uplink authorization ULgrant information transmission PUSCH, wherein, O ¹, O ²when independently calculating respectively, ascending control information bit number to be sent, what represent is the maximum being assigned to the PDSCH sum that ACK/NACK response message is corresponding in two RM, the length of what N represented the is bit sequence of the ACK/NACK response message obtained;

(2) the length of what N represented the is bit sequence of the ACK/NACK response message obtained;

(3) when UE is according to uplink authorization ULgrant information transmission PUSCH, or when UE is not according to uplink authorization ULgrant information transmission PUSCH, the length of what N represented the is bit sequence of the ACK/NACK response message obtained, represent the maximum in the descending sub frame number of scheduled feedback ACK/NACK response message in all component carriers; As long as have corresponding 2 transmission blocks of a PDSCH, TB _max=2; Otherwise, TB _max=1; TB _max(c), c=0,1 ... C-1 represents the maximum of transmission block in component carrier c, and C is the number of component carrier, k represents descending sub frame number in the ascending-descending subframes proportionate relationship of configuration, TB _xrepresent each to configure to correct and wrong answer maximum number bits corresponding to the PDSCH on the downlink component carrier of UE, or, O _maxrepresent the maximum number bits of described ACK/NACK response message through logical AND operational feedback;

(4) O ¹the TB corresponding A CK/NACK response message that expression UE receives is mapped in the quantity in a Reed-Muller code; O ²the TB corresponding A CK/NACK response message that expression UE receives is mapped in the quantity in another Reed-Muller code.

The ACK/NACK bit sequence of generation carries out encoding according to corresponding coded system by step 606:UE, obtain the sequence after encoding according to the modulation symbol number after coding, by after channel interleaving together with data-reusing, then send on PUSCH.

In order to realize above-mentioned embodiment of the method, of the present invention other embodiment still provides a kind of user terminal.Because following embodiment is for realizing aforesaid embodiment of the method; therefore the module in this user terminal is all establish to realize preceding method; module in described user terminal all can be beyond all doubt from preceding method derivation; but the present invention is not limited to following embodiment, any realize said method device and module all should be contained in protection scope of the present invention.And in the following description, the content identical with preceding method is omitted at this, to save length.

A kind of user terminal provided by the invention comprises: acquisition module, computing module and sending module, and described acquisition module needs the bit sequence of the ACK/NACK response message sent for obtaining; Computing module is for calculating the coded modulation symbol numbers needed for the bit sequence sending described ACK/NACK response message on PUSCH; Described sending module for sending described ACK/NACK response message on PUSCH.Above-mentioned module is all sending method for realizing ACK/NACK response message provided by the invention and establishes, and the concrete technical scheme of described method all can be embodied in the interactive relation between the function of described each module and each module, repeats no more herein.

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

The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.

Claims (14)

1. a sending method for response message, is characterized in that, the method comprises:

Under the scene of carrier aggregation, user terminal UE obtains the bit sequence needing the ACK/NACK response message sent;

UE calculates the coded modulation symbol numbers needed for bit sequence sending described ACK/NACK response message on PUSCH;

UE sends described ACK/NACK response message on PUSCH;

Wherein, the method for the bit sequence of the ACK/NACK response message of described UE acquisition needs transmission is:

The number of the correct or wrong ACK/NACK response message bit that the transmission mode of each downlink component carrier of the downlink component carrier number that UE configures according to base station, the ascending-descending subframes proportionate relationship of configuration, configuration and Physical Uplink Shared Channel PUSCH send to multipotency determines the ACK/NACK response message needing to send, and is mapped in bit sequence by the described ACK/NACK response message sent that needs;

Or the feedback model that UE configures according to high level obtains the bit sequence needing the ACK/NACK response message sent:

If the mode that high-rise configuration adopts form 1b combined channel to select sends ACK/NACK response message, then determine according to the ACK/NACK information in the mapping table of channel selective mode the bit sequence needing the ACK/NACK response message sent;

If high-rise configuration adopts the mode of form 3 to send ACK/NACK response message, then determine the ACK/NACK response message needing to send according to the number of the upper ACK/NACK response message bit sent to multipotency of the downlink component carrier number of UE configuration, the transmission mode of each downlink component carrier configuration, ascending-descending subframes proportionate relationship and PUSCH, and the described ACK/NACK response message of transmission that needs is mapped in bit sequence.

2. method according to claim 1, is characterized in that, described method also comprises:

When obtaining the bit sequence needing the ACK/NACK response message sent, if send the ACK/NACK response message of 40 bits on PUSCH to multipotency, then according to the order of streams of code words, component carrier, subframe, or streams of code words, subframe, component carrier order, the described ACK/NACK response message sent that needs is mapped in bit sequence and goes.

3. method according to claim 1 and 2, is characterized in that, described method also comprises:

When obtaining the bit sequence needing the ACK/NACK response message sent, if send the ACK/NACK response message of the M-bit of base station and UE agreement on PUSCH to multipotency, and the current total bit number of the ACK/NACK response message sent that needs exceedes M-bit, after then ACK/NACK response message corresponding for all Physical Downlink Shared Channel PDSCH comprising 2 streams of code words being carried out logical AND operation, ACK/NACK response message after being operated by logical AND is mapped in corresponding bit sequence, wherein, the value of M is { 20,21,22,23,24,25,26}.

4. method according to claim 1 and 2, is characterized in that, described method also comprises:

When obtaining the bit sequence needing the ACK/NACK response message sent, if send the ACK/NACK response message of the M-bit of base station and UE agreement on PUSCH to multipotency, and the current total bit number of the ACK/NACK response message sent that needs exceedes M-bit, then according to preset method, corresponding for PDSCH 2 ACK/NACK response messages are carried out logical AND operation, until total bit number of ACK/NACK response message is no more than M-bit, then the ACK/NACK response message after being operated by logical AND is mapped in corresponding bit sequence, wherein, the value of M is { 20, 21, 22, 23, 24, 25, 26}.

5. method according to claim 4, is characterized in that, described preset method is one of following methods:

ACK/NACK response message corresponding for the PDSCH comprising 2 streams of code words in all auxiliary component carriers is carried out logical AND operation; If total bit number of ACK/NACK response message still exceedes M-bit, then again ACK/NACK response message corresponding for the PDSCH comprising 2 streams of code words in principal component carrier wave is carried out logical AND operation;

Or, according to component carrier priority order from low to high, ACK/NACK response message corresponding for PDSCH comprising 2 streams of code words all in described component carrier is carried out logical AND operation, until total bit number of ACK/NACK response message is no more than M;

Or, according to subframe sequencing, ACK/NACK response message corresponding for the PDSCH comprising 2 streams of code words in all component carriers corresponding for described subframe is carried out logical AND operation, until total bit number of ACK/NACK response message is no more than M;

Or, according to the order of subframe after component carrier after first subframe or first component carrier, all PDSCH are sorted, according to order from back to front or from front to back, one by one ACK/NACK response message corresponding for the PDSCH comprising 2 streams of code words is carried out logical AND operation, until total information bit is no more than M.

6. method according to claim 1 and 2, is characterized in that, when being mapped in bit sequence by described ACK/NACK response message, the method for described mapping is one of following methods:

Method one: map according to predefined component carrier order, ACK/NACK response message for same component carrier maps according to subframe sequencing or maps according to the value of the descending allocation index DAI in downstream grants information DLassignment, and the ACK/NACK response message of semi-static continuous dispatching release is positioned at the ACK/NACK response message foremost or backmost of its place component carrier feedback;

Wherein, predefined component carrier order is high-rise configuration, or predefined component carrier order is component carrier indexed sequential, or former head's component carrier is auxiliary component carrier again;

The ACK/NACK response message quantity of each component carrier feedback is determined by the descending sub frame quantity configured and transmission mode, or, determined by the value of the descending allocation index in the descending sub frame quantity configured and transmission mode, uplink authorization information ULgrant;

Method two: map according to the sequencing of subframe, the ACK/NACK response message in same subframe is according to predefined component carrier Sequential Mapping;

Wherein, predefined component carrier order is high-rise configuration, or predefined component carrier order is component carrier indexed sequential, or former head's component carrier is auxiliary component carrier again.

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

When UE does not detect PDSCH on the corresponding downlink component carrier configured, then its corresponding response message is set to NACK;

When certain transmission block in two transmission blocks corresponding to base station configuration PDSCH not enable and send ACK/NACK response message corresponding to this PDSCH do not carry out logical AND operation time, the response message of the streams of code words that transmission block not enable is so corresponding is set to NACK;

When certain transmission block in two transmission blocks corresponding to base station configuration PDSCH not enable and send ACK/NACK response message corresponding to this PDSCH carry out logical AND operation time, the ACK/NACK response message of the streams of code words that transmission block not enable is so corresponding is set to ACK, or the ACK/NACK response message logical AND operating result that this PDSCH is corresponding is the ACK/NACK response message that enable transmission block is corresponding.

8. method according to claim 1 and 2, is characterized in that, described acquisition needs the method for the ACK/NACK response message bit sequence sent to be applicable on PUCCH, adopt form 3 to send ACK/NACK response message.

9. method according to claim 1, it is characterized in that, if do not adopt the mode of two Reed-Muller code DualRM to encode when ACK/NACK response message transmits on PUSCH, calculate on PUSCH, send described ACK/NACK response message bit sequence needed for coded modulation symbol numbers time, the bit number O of ascending control information to be sent obtains one of in the following manner:

When UE is according to uplink authorization ULgrant information transmission PUSCH, or or $O=\min (V_{\mathrm{DAI}}^{\mathrm{UL}}{*\mathrm{TB}}_{\max },O_{\max }),$ Or $O=V_{\mathrm{DAI}}^{\mathrm{UL}}\·\underset{c=0}{\overset{C-1}{\mathrm{\Σ}}}{\mathrm{TB}}_{\max }\left(c\right);$ When UE is not according to uplink authorization information ULgrant information transmission PUSCH, O equals the length of the bit sequence of the ACK/NACK response message obtained; Wherein, what represent is the maximum that base station sends in the descending sub frame number of scheduled feedback ACK/NACK response message in the sum of the PDSCH of UE or all component carriers; As long as have corresponding 2 transmission blocks of a PDSCH, TB _max=2; Otherwise, TB _max=1; TB _max(c), c=0,1 ... C-1 represents the maximum of transmission block in component carrier c, and C is the number of the component carrier of UE configuration; O _maxrepresent the maximum number bits of UE feeding back ACK/NACK response message, k represents descending sub frame number in the ascending-descending subframes proportionate relationship of configuration, TB _xrepresent each to configure to correct and wrong answer maximum number bits corresponding to the PDSCH on the downlink component carrier of UE, or, O _maxrepresent the maximum number bits of described ACK/NACK response message through logical AND operational feedback; Or,

O equals the bit sequence length obtained; Or,

O equals the quantity of the ACK/NACK response message of TB corresponding A CK/NACK response message that UE receives and the release of semi-static continuous dispatching.

10. method according to claim 1, it is characterized in that, if adopt the mode of DualRM to encode when ACK/NACK response message transmits on PUSCH, and the coded modulation symbol numbers needed for calculating is combined calculation, the bit number O of ascending control information to be sent during calculating obtains one of in the following manner:

When UE is according to uplink authorization ULgrant information transmission PUSCH, when UE is not according to ULgrant information transmission PUSCH, O equals the length of the bit sequence of the ACK/NACK response message obtained; what represent is the maximum being assigned to the PDSCH sum that ACK/NACK response message is corresponding in two RM;

Or, when UE is according to uplink authorization ULgrant information transmission PUSCH, or $O=V_{DAI}^{UL}*{\mathrm{TB}}_{\max },$ Or $O=min(V_{DAI}^{UL}*{\mathrm{TB}}_{max},O_{max}),$ Or $O=V_{DAI}^{UL}\·\underset{c=0}{\overset{C-1}{\Σ}}{\mathrm{TB}}_{max}\left(c\right);$ When UE is not according to uplink authorization information ULgrant information transmission PUSCH, O equals the length of the bit sequence of the ACK/NACK response message obtained; Wherein, what represent is the maximum that base station sends in the descending sub frame number of scheduled feedback ACK/NACK response message in the sum of the PDSCH of UE or all component carriers; As long as have corresponding 2 transmission blocks of a PDSCH, TB _max=2; Otherwise, TB _max=1; TB _max(c), c=0,1 ... C-1 represents the maximum of transmission block in component carrier c, and C is the number of the component carrier of UE configuration; O _maxrepresent the maximum number bits of UE feeding back ACK/NACK response message, k represents descending sub frame number in the ascending-descending subframes proportionate relationship of configuration, TB _xrepresent each to configure to correct and wrong answer maximum number bits corresponding to the PDSCH on the downlink component carrier of UE, or, O _maxrepresent the maximum number bits of described ACK/NACK response message through logical AND operational feedback; Or,

O equals the length of the bit sequence of the ACK/NACK response message obtained; Or,

O equals the quantity of the ACK/NACK response message of TB corresponding A CK/NACK response message that UE receives and the release of semi-static continuous dispatching.

11. methods according to claim 1, it is characterized in that, if adopt the mode of DualRM to encode when ACK/NACK response message transmits on PUSCH, and the coded modulation symbol numbers needed for calculating is independent calculating, the bit number O of ascending control information to be sent during calculating ¹, O ²obtain one of in the following manner:

When UE is according to uplink authorization ULgrant information transmission PUSCH, when UE is not according to uplink authorization ULgrant information transmission PUSCH, wherein, O ¹, O ²when independently calculating respectively, ascending control information bit number to be sent, what represent is the maximum being assigned to the PDSCH sum that ACK/NACK response message is corresponding in two RM, the length of what N represented the is bit sequence of the ACK/NACK response message obtained; Or,

the length of what N represented the is bit sequence of the ACK/NACK response message obtained; Or,

when UE is according to uplink authorization ULgrant information transmission PUSCH, $N=V_{DAI}^{UL}\·\underset{c=0}{\overset{C-1}{\Σ}}{\mathrm{TB}}_{max}\left(c\right)$ Or $N=min(V_{DAI}^{UL}*{\mathrm{TB}}_{max},O_{max}),$ When UE is not according to uplink authorization ULgrant information transmission PUSCH, the length of what N represented the is bit sequence of the ACK/NACK response message obtained, represent the maximum in the descending sub frame number of scheduled feedback ACK/NACK response message in all component carriers; As long as have corresponding 2 transmission blocks of a PDSCH, TB _max=2; Otherwise, TB _max=1; TB _max(c), c=0,1 ... C-1 represents the maximum of transmission block in component carrier c, and C is the number of the component carrier of UE configuration; k represents descending sub frame number in the ascending-descending subframes proportionate relationship of configuration, TB _xrepresent each to configure to correct and wrong answer maximum number bits corresponding to the PDSCH on the downlink component carrier of UE, or, O _maxrepresent the maximum number bits of described ACK/NACK response message through logical AND operational feedback; Or,

O ¹the TB corresponding A CK/NACK response message that expression UE receives is mapped in the quantity in a Reed-Muller code; O ²the TB corresponding A CK/NACK response message that expression UE receives is mapped in the quantity in another Reed-Muller code.

12. methods according to claim 9 or 10 or 11, is characterized in that, described in determine according to DAI in uplink authorization information, wherein, when there being multiple uplink authorization information to send to UE, in uplink authorization information, DAI value is identical.

13. methods according to claim 1 and 2, is characterized in that, described UE sends described ACK/NACK response message and is specially on PUSCH:

The bit sequence of the ACK/NACK response message of generation is encoded according to corresponding coded system by UE, according to coding after modulation symbol number obtain encode after sequence, by after channel interleaving together with data-reusing, then send on PUSCH.

The 14. a kind of user terminals realized according to claim 1, it is characterized in that, this user terminal comprises:

Acquisition module, for obtaining the bit sequence needing the ACK/NACK response message sent;

Computing module, for calculating the coded modulation symbol numbers needed for the bit sequence sending described ACK/NACK response message on PUSCH;

Sending module, for sending described ACK/NACK response message on PUSCH;

Described acquisition module, number specifically for the correct or wrong ACK/NACK response message bit that the downlink component carrier number, the ascending-descending subframes proportionate relationship of configuration, the transmission mode of each downlink component carrier of configuration and the Physical Uplink Shared Channel PUSCH that configure according to base station send to multipotency determines the ACK/NACK response message needing to send, and is mapped in bit sequence by the described ACK/NACK response message sent that needs;

Or obtain for the feedback model configured according to high level the bit sequence needing the ACK/NACK response message sent:

If the mode that high-rise configuration adopts form 1b combined channel to select sends ACK/NACK response message, then determine according to the ACK/NACK information in the mapping table of channel selective mode the bit sequence needing the ACK/NACK response message sent;

If high-rise configuration adopts the mode of form 3 to send ACK/NACK response message, then determine the ACK/NACK response message needing to send according to the number of the upper ACK/NACK response message bit sent to multipotency of the downlink component carrier number of UE configuration, the transmission mode of each downlink component carrier configuration, ascending-descending subframes proportionate relationship and PUSCH, and the described ACK/NACK response message of transmission that needs is mapped in bit sequence.