CN102075313B - Method and device for processing acknowledgement (ACK)/negative acknowledgment (NACK) feedback bit - Google Patents
Method and device for processing acknowledgement (ACK)/negative acknowledgment (NACK) feedback bit Download PDFInfo
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Abstract
The invention discloses a method and device for processing an acknowledgement (ACK)/negative acknowledgment (NACK) feedback bit. The method comprises the following steps: user equipment (UE) receives data in N downlink carriers and M downlink subframes; when determining that semi persistent schedule (SPS) physical downlink shared channel (PDSCH) transmission which does not correspond to a physical downlink control channel (PDCCH) does not exist in one downlink carrier, or SPSPDSCH transmission which dose not correspond to the PDCCH exists in one downlink carrier, and the receiving the PDCCH of which the downlink allocation index (DAI) value is equal to M, the UE carries out mapping on the ACK/NACK feedback information of the downlink carrier by adopting a first class mode; and when determining that the SPSPDSCH transmission which does not correspond to the PDCCH exists on the downlink carrier, and receiving no PDCCH of which the DAI value is equal to M, the UE carries out mapping on the ACK/NACK feedback information of the downlink carrier by adopting a second class mode. According to the embodiment, when the UE loses the packets, the problem that the understanding of a base station is not consistent with the understanding of the UE for the ACK/NACK feedback information can be avoided, thus improving the reliability of the ACK/NACK transmission and the retransmission efficiency of a system.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of processing method and equipment of ACK/NACK feedback bits.
Background technology
For the multicarrier system of Long Term Evolution, in order to support the Evolution than LTE(Long Term, Long Term Evolution) the wider system bandwidth (such as 100MHz) of system, can directly distribute the frequency spectrum of 100M bandwidth, single-frequency spectral system schematic as shown in Figure 1; Also can some spectrum aggregatings of existing system will be distributed to, gather into large bandwidth and supply with the multicarrier system use of Long Term Evolution, the up-downgoing carrier wave can asymmetricly dispose in the system at this moment, be that the user may take N 〉=1 carrier wave and carries out downlink transfer, and take M 〉=1 carrier wave and carry out uplink, frequency spectrum polymerization system schematic diagram as shown in Figure 2.
Current LTE-A(LTE-Advanced, senior LTE) system determines to support at most 5 carrier waves to carry out polymerization, the TDD(Time Division Duplexing of LTE-A, time division duplex) the UE(User Equipment in the system, subscriber equipment) need to be at the ACK(Acknowledge of the corresponding a plurality of descending carriers of same sub-frame of uplink internal feedback and descending sub frame, positive acknowledgement)/and NACK(Negative Acknowledgment, Negative Acknowledgement) feedback information.And in order to support the transmission of larger ACK/NACK number of bits of feedback, especially support UE not adopt any merging mode transferring ACK/NACK feedback information, be that ACK/NACK full multiplexing(is multiplexing), defined PUCCH(Physical Uplink Control Channel in the LTE-A system, Physical Uplink Control Channel) format(form) the 3 multiplexing transmission schemes as the ACK/NACK feedback information, under this scheme, the maximum transmitted bit number is 20 bits, when ACK/NACK number of bits of feedback during greater than 20 bit, need to carry out the space to the descending carrier of many code words (i.e. 2 code words) transmission and merge, namely the ACK/NACK feedback information of a plurality of code words in the descending sub frame of a descending carrier be carried out logic add.
Concrete, when UE adopted PUCCH format3 to carry out the ACK/NACK multiplexing transmission, needing to carry out descending sub frame that ACK/NACK feeds back in the ACK/NACK bit number that UE need to feed back and configurating downlink carrier number N and the sub-frame of uplink, to count S relevant.When not needing to carry out the space merging, ACK/NACK number of bits of feedback (being the length of ACK/NACK feedback bits sequence) is (N+N1) * S, and N1 is the descending carrier number of many codeword transmission pattern; When needs carried out the space merging, the ACK/NACK number of bits of feedback was N*S.For the TDD system, S can be equivalent in the LTE Rel-8 system and need to count M at the descending sub frame that same sub-frame of uplink carries out the ACK/NACK feedback, M is different, as shown in table 1 with different uplink-downlink configuration values to different sub-frame of uplink, wherein the k value of correspondence in each sub-frame of uplink
Be UE need to carry out the ACK/NACK feedback in this sub-frame of uplink descending sub frame.
In the prior art, UE arranges each descending carrier and ACK/NACK feedback information corresponding to descending sub frame according to specific order, consists of ACK/NACK feedback bits sequence
, wherein c is carrier index,
It is the ACK/NACK feedback bits sum of a descending carrier.
Order according to frequency domain after the first time domain sorts, at first on a descending carrier, according to the PDCCH(Physical Downlink Control Channel that receives in each descending sub frame, Physical Downlink Control Channel, comprise scheduling PDSCH(Physical Downlink Shared Channel, Physical Downlink Shared Channel) PDCCH and indication SPS(Semi Persistence Schedule, semi-continuous scheduling) the DAI(Downlink Assignment Index the PDCCH of resource release), descending allocation index) value Sequential Mapping, namely for carrier wave c, DAI value among the subframe n-k is DAI(k), then single codeword transmission mode or many codeword transmission pattern but carry out the space when merging, 1 bit ACK in the current descending sub frame/NACK feedback information is mapped in the ACK/NACK feedback bits sequence of this descending carrier
The position, many codeword transmission pattern and do not carry out the space when merging, 2 bit ACK in the current descending sub frame/NACK feedback information is mapped to
With
Wherein n is the sub-frame of uplink numbering of the current ACK/NACK of carrying out feedback, k be shown in the table 1 to descending sub frame set that should sub-frame of uplink.
If there is the SPS PDSCH transmission without corresponding PDCCH on the downlink main carrier to carry, the ACK/NACK feedback information of SPS PDSCH is mapped in the last 1(downlink main carrier to carry single codeword transmission mode of ACK/NACK feedback bits sequence of this descending carrier or many codeword transmission pattern but carries out the space and merge) or 2 bits (many codeword transmission of downlink main carrier to carry pattern and do not carry out the space merge) position, and produce NACK for the position that does not receive data; ACK/NACK feedback bits sequence order level with each descending carrier is linked togather the ACK/NACK feedback bits sequence that consists of UE at last.Wherein the value of DAI (namely
) the current descending sub frame of expression is which subframe of (have PDCCH transmit) of being scheduled in M the descending sub frame, its value is as shown in table 2; For not receiving data but can judge that the position of packet loss produces NACK as feedback information by DAI.
In addition, SPS PDSCH has fixing transmission cycle and fixing transfer resource, and by the semi-static configuration of high level, the subframe that is configured in SPS transmission cycle position is called the SPS subframe; If there is SPS PDSCH transmission on the downlink main carrier to carry, and in this SPS PDSCH subframe base station scheduling a dynamic PDSCH transmission, then SPS PDSCH business will be packaged among this dynamic PDSCH and transmit, base station transmitting terminal state as shown in Figure 3A, descending sub frame 3 is the SPS subframe at descending carrier 1, but a dynamic PDSCH transmission has been dispatched in the base station in this subframe, owing to all dispatched dynamic data transmission (namely all having PDCCH) in 4 subframes, then the ACK/NACK feedback bits sequence of base station expectation UE feedback is arranged according to mode shown in Fig. 3 B, and namely the order according to the DAI value sorts on each carrier wave.
When the UE termination time receiving has been lost PDCCH in the SPS PDSCH subframe, be that UE does not receive the dynamic data scheduling in the SPS subframe, then UE thinks that this subframe is that SPS PDSCH is professional, UE termination shown in Fig. 3 C is received state, UE will detect SPS PDSCH in the SPS resource of high level configuration this moment, and the ACK/NACK feedback information of this SPS PDSCH is mapped to ACK/NACK feedback bits sequence last of this descending carrier, UE end ACK/NACK feedback bits mapping status shown in Fig. 3 D.
Wherein 2 bit ACK of DAI=4 subframe/NACK feedback information also is mapped in last 2 bit positions according to the DAI value, be mapped to same position with the ACK/NACK feedback information of SPS PDSCH, the ACK/NACK information of the subframe of DAI=4 can be covered by the ACK/NACK information of SPS PDSCH, can find out from Fig. 4 B and Fig. 4 D, the ACK/NACK mapping relations are inconsistent, cause base station and UE that understanding differently of ACK/NACK feedback information caused, affect system's retransmission performance.
In realizing process of the present invention, the inventor finds to exist at least in the prior art following problem:
In the LTE-A system, when the ACK/NACK multiplexing transmission, mapping relations between the ACK/NACK feedback bits sequence of ACK/NACK feedback information and UE actual transmissions also do not have clear and definite method, can cause base station and UE that understanding differently of ACK/NACK feedback information caused, thereby affect system's retransmission performance.
Summary of the invention
The embodiment of the invention provides a kind of processing method and equipment of ACK/NACK feedback bits, so that the base station is consistent to the understanding of ACK/NACK feedback information with UE.
In order to achieve the above object, the embodiment of the invention provides a kind of processing method of positive acknowledgement ACK/ Negative Acknowledgement NACK feedback bits, comprising:
Subscriber equipment is receive data on N descending carrier, a M descending sub frame, wherein, N 〉=1, M 〉=1, the ACK/NACK feedback information of a described M descending sub frame transmits at same sub-frame of uplink;
Determine not exist on a descending carrier without the semi-continuous scheduling SPS Physical Downlink Shared Channel PDSCH transmission of corresponding down control channel PDCCH or exist without the SPS PDSCH transmission of corresponding PDCCH and receive the PDCCH that descending allocation index DAI value equals M when described subscriber equipment, then described subscriber equipment employing first kind mode is shone upon the ACK/NACK feedback information of described descending carrier;
Determine to exist without the SPS PDSCH transmission of corresponding PDCCH and do not receive the PDCCH that the DAI value equals M at descending carrier when described subscriber equipment, then described subscriber equipment employing Equations of The Second Kind mode is shone upon the ACK/NACK feedback information of described descending carrier.
The embodiment of the invention provides a kind of subscriber equipment, comprising:
Receiver module is used for receive data on N descending carrier, a M descending sub frame, wherein, N 〉=1, M 〉=1, the ACK/NACK feedback information of a described M descending sub frame transmits at same sub-frame of uplink;
The first processing module, be used for when determining on a descending carrier, not exist without the semi-continuous scheduling SPS Physical Downlink Shared Channel PDSCH transmission of corresponding down control channel PDCCH or existing SPS PDSCH without corresponding PDCCH to transmit and receive the PDCCH that descending allocation index DAI value equals M, then adopt first kind mode that the ACK/NACK feedback information of described descending carrier is shone upon;
The second processing module is used for existing SPS PDSCH without corresponding PDCCH to transmit and not receiving the PDCCH that the DAI value equals M at a descending carrier when determining, then adopts the Equations of The Second Kind mode that the ACK/NACK feedback information of described descending carrier is shone upon.
Compared with prior art, the present invention has the following advantages at least:
Avoid when the UE packet loss, base station and UE cause problem to understanding differently of ACK/NACK feedback information, improve ACK/NACK transmission reliability and system's retransmission efficiency.
Description of drawings
In order to be illustrated more clearly in technical scheme of the present invention, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is single-frequency spectral system schematic in the prior art;
Fig. 2 is prior art intermediate frequency spectrum paradigmatic system schematic diagram;
Fig. 3 A is that the base station end sends view in the prior art;
Fig. 3 B is base station expectation ACK/NACK feedback bits mapping status schematic diagram in the prior art;
Fig. 3 C is UE receiving-end state schematic diagram in the prior art;
Fig. 3 D is UE ACK/NACK feedback bits mapping status schematic diagram in the prior art;
Fig. 4 is the process flow schematic diagram of a kind of ACK/NACK feedback bits of providing of the embodiment of the invention one;
Fig. 5 A is that the base station end sends schematic diagram in the embodiment of the invention two;
Fig. 5 B is that the UE termination is received schematic diagram in the embodiment of the invention two;
Fig. 5 C is that ACK/NACK last in the embodiment of the invention two sends the bit schematic diagram;
Fig. 6 A is that the base station end sends schematic diagram in the embodiment of the invention three;
Fig. 6 B is that the UE termination is received schematic diagram in the embodiment of the invention three;
Fig. 6 C is that ACK/NACK last in the embodiment of the invention three sends the bit schematic diagram;
Fig. 7 is a kind of user device architecture schematic diagram that the embodiment of the invention four provides.
Embodiment
In the LTE-A system, in order to support larger ACK/NACK feedback bits transmission, defined PUCCH format 3 as ACK/NACK multiplexing transmission scheme.When carrying out the ACK/NACK multiplexing transmission, which kind of the ACK/NACK feedback information of a plurality of descending carriers and descending sub frame sequentially generate ACK/NACK feedback bits sequence to be feedback according to does not also have clear and definite method, thereby can cause base station and UE that understanding differently of ACK/NACK feedback information caused, affect system's retransmission performance.
For the problems referred to above, the embodiment of the invention provides a kind of processing method and equipment of ACK/NACK feedback bits, UE generates ACK/NACK feedback bits sequence according to ad hoc rules, avoid when packet loss appears in UE, base station and UE understand differently to the corresponding relation of the feedback information in the ACK/NACK feedback bits sequence and descending carrier and descending sub frame and cause, and improve ACK/NACK transmission reliability and system's retransmission efficiency.
Below in conjunction with the accompanying drawing among the present invention, the technical scheme among the present invention is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Embodiment one
The embodiment of the invention one provides a kind of processing method of ACK/NACK feedback bits, and as shown in Figure 4, the method may further comprise the steps:
Wherein, N 〉=1, M 〉=1, the ACK/NACK feedback information of M descending sub frame transmits at same sub-frame of uplink.
When UE determines not exist on a descending carrier without the semi-continuous scheduling SPS Physical Downlink Shared Channel PDSCH transmission of corresponding down control channel PDCCH or exists SPS PDSCH without corresponding PDCCH to transmit and when receiving descending allocation index DAI value and equaling the PDCCH of M, execution in step 402;
When UE determines when descending carrier exists SPS PDSCH without corresponding PDCCH to transmit and do not receive the DAI value and equal the PDCCH of M execution in step 403.
Concrete, when UE determines
(
The SPS PDSCH packet number that expression UE receives at a carrier wave), perhaps
And when the DAI value equals M, execution in step 402; When UE determines
And when the DAI value is not equal to M, execution in step 403.
In the embodiment of the invention, when ACK/NACK when PUCCH carries out multiplexing transmission, the M value is specially in the table 1 corresponding to a sub-frame of uplink carries out descending sub frame sum in the descending sub frame set of AK/NACK feedback; In addition, for LTE-A CA TDD system, uplink-downlink configuration 0 and configuration 5 are at conventional CP(Cyclic Prefix, Cyclic Prefix) under, perhaps uplink-downlink configuration 0 and configuration 4 be under expansion CP, and the descending sub frame number that carries out the ACK/NACK feedback corresponding to a sub-frame of uplink can comprise or not comprise the special subframe in descending sub frame set corresponding to this sub-frame of uplink.
When ACK/NACK when PUSCH carries out multiplexing transmission, M can same PUCCH, perhaps in the situation that receives uplink scheduling indication UL grant, M can be the DAI value among the UL grant.
Concrete, when descending carrier wave is that single codeword transmission mode or descending carrier are many codeword transmission pattern and carry out the space when merging, the ACK/NACK feedback information that UE will receive the PDCCH that PDSCH in the descending sub frame of the PDSCH of corresponding PDCCH or the PDCCH that indication SPS resource discharges or indication SPS resource discharge is mapped to DAI (k)-1 position of ACK/NACK feedback bits sequence corresponding to descending carrier, the DAI value among the PDCCH that DAI (k) receives in descending sub frame for UE;
When descending carrier wave is many codeword transmission pattern and does not carry out the space when merging, the ACK/NACK feedback information that UE will receive the PDCCH that PDSCH in the descending sub frame of the PDSCH of corresponding PDCCH or the PDCCH that indication SPS resource discharges or indication SPS resource discharge is mapped to 2DAI (k)-1 and 2DAI (k)-2 position of ACK/NACK feedback bits sequence corresponding to descending carrier, the DAI value among the PDCCH that DAI (k) receives in descending sub frame for UE.
Need to prove, under first kind mode, because dynamic PDSCH transmission has all been dispatched in the base station in M subframe, when UE receives the DAI value for the subframe of M, the ACK/NACK feedback information of the data in this subframe can be mapped to rearmost position in ACK/NACK feedback bits sequence corresponding to this descending carrier according to the DAI value, therefore, even UE receives SPS PDSCH transmission in SPS PDSCH subframe owing to lose dynamic dispatching, UE is not mapped to the ACK/NACK feedback information of this SPS PDSCH the rearmost position in ACK/NACK feedback bits sequence corresponding to this descending carrier yet.
Step 403, UE employing Equations of The Second Kind mode is shone upon the ACK/NACK feedback information of descending carrier.
Concrete, when descending carrier wave is that single codeword transmission mode or descending carrier are many codeword transmission pattern and carry out the space when merging, the ACK/NACK feedback information that UE will receive the PDCCH that PDSCH in the descending sub frame of the PDSCH of corresponding PDCCH or the PDCCH that indication SPS resource discharges or indication SPS resource discharge is mapped to DAI (k)-1 position of ACK/NACK feedback bits sequence corresponding to descending carrier, the DAI value among the PDCCH that DAI (k) receives in descending sub frame for UE; And UE is mapped to the ACK/NACK feedback information without the SPS PDSCH of corresponding PDCCH that receives on the descending carrier last 1 bit position of ACK/NACK feedback bits sequence corresponding to descending carrier;
When descending carrier wave is many codeword transmission pattern and does not carry out the space when closing, the ACK/NACK feedback information that UE will receive the PDCCH that PDSCH in the descending sub frame of the PDSCH of corresponding PDCCH or the PDCCH that indication SPS resource discharges or indication SPS resource discharge is mapped to 2DAI (k)-1 and 2DAI (k)-2 position of ACK/NACK feedback bits sequence corresponding to descending carrier, the DAI value among the PDCCH that DAI (k) receives in descending sub frame for UE; And UE is mapped to the ACK/NACK feedback information without the SPS PDSCH of corresponding PDCCH that receives on the descending carrier last 2 bit positions of ACK/NACK feedback bits sequence corresponding to descending carrier.
In the embodiment of the invention, UE also tackles in ACK/NACK feedback bits sequence corresponding to descending carrier and correspondingly not to receive the position of PDSCH or do not receive the position of the PDCCH that indication SPS resource discharges or judge that the position of packet loss generates NACK.
Concrete, for first kind mode, UE produces NACK to other positions the position of shining upon according to the DAI value in ACK/NACK feedback bits sequence corresponding to this descending carrier in first kind mode, these other positions are corresponding to the descending sub frame that does not receive PDSCH or do not receive the descending sub frame of the PDCCH that indication SPS resource discharges or have the ACK/NACK feedback information of the descending sub frame of SPS PDSCH;
For the Equations of The Second Kind mode, UE produces NACK to other positions the position of the ACK/NACK feedback information mapping of the position shone upon according to the DAI value in ACK/NACK feedback bits sequence corresponding to this descending carrier and SPS PDSCH in the Equations of The Second Kind mode, these other positions are corresponding to the descending sub frame that does not receive PDSCH or do not receive the ACK/NACK feedback information of descending sub frame of the PDCCH of indication SPS resource release.
Need to prove, the main distinction of the above-mentioned first kind and Equations of The Second Kind mode is whether the ACK/NACK feedback information of SPS PDSCH to be mapped to the rearmost position of ACK/NACK feedback bits sequence corresponding to descending carrier, therefore above-mentioned ACK/NACK feedback bits production method also can be described as last 1 or 2 bit positions that UE will be mapped to without the ACK/NACK feedback information of the SPS PDSCH of corresponding PDCCH ACK/NACK feedback bits sequence corresponding to descending carrier, unless the DAI value among the PDCCH that UE receives in a descending sub frame of this descending carrier equals M.
Embodiment two
The embodiment of the invention two provides a kind of processing method of ACK/NACK feedback bits, UE need to be in the ACK/NACK information (being M=4) of corresponding 4 descending sub frames of sub-frame of uplink feedback, descending sub frame 3 is the SPS subframe, dynamic PDSCH has been dispatched at descending sub frame 3 in the base station, and 4 subframes have been dispatched at descending carrier 1 in the base station, dispatched 3 subframes at descending carrier 2, the base station end shown in Fig. 5 A sends schematic diagram.
UE does not receive PDCCH(at the descending sub frame 3 of descending carrier 1 and has namely lost dynamic dispatching), but UE DAI value among the PDCCH in last descending sub frame that receives on descending carrier 1 is 4, equals M, and the UE termination shown in Fig. 5 B is received schematic diagram.
Setting ACK/NACK feedback bits sequence corresponding to capable carrier wave c is
, wherein c is carrier index,
It is an ACK/NACK feedback bits sum that descending carrier is corresponding.
Based on above-mentioned situation, (1) for descending carrier 1, according to M=4, transmission mode is many code words, and UE determines that at first the length of the ACK/NACK feedback bits sequence that this descending carrier is corresponding is the 2*M=8 bit, namely
=8; UE does not receive the dynamic dispatching in descending carrier 1 ascending-descending subframes 3, because descending sub frame 3 is the SPS subframe, so UE determines that existence is without the SPS PDSCH transmission of corresponding PDCCH, namely on the descending carrier 1
(
The SPS PDSCH packet number that expression UE receives at a carrier wave), and the DAI value that UE receives at descending sub frame 4 is 4, equal M, so UE adopts first kind mode that the ACK/NACK feedback information that receives data on the descending carrier 1 is mapped to ACK/NACK feedback bits sequence corresponding to this descending carrier
In.
Concrete, UE is mapped to the DAI value in the ACK/NACK feedback bits sequence for 2 bit ACK in the descending sub frame (being descending sub frame 1) of DAI=1/NACK feedback information
With
The position; UE is mapped to the DAI value in the ACK/NACK feedback bits sequence for 2 bit ACK in the descending sub frame (being descending sub frame 2) of DAI=2/NACK feedback information
With
The position; UE is mapped to the DAI value in the ACK/NACK feedback bits sequence for 2 bit ACK in the descending sub frame (being descending sub frame 4) of DAI=4=M/NACK feedback information
With
Position, i.e. last 2 bit positions.
In addition, because UE does not receive PDCCH at descending sub frame 3, UE thinks does not have dynamic dispatching, but this subframe is the SPS subframe, then UE can detect SPS PDSCH in the pre-configured SPS resource of high level, and because the base station end has been dispatched dynamic data, then the base station is packaged in SPS PDSCH in the dynamic data transmitted over resources (not in former SPS transmitted over resources) at dynamic data when sending, UE correct receive data on former SPS PDSCH resource, obtain NACK, this information is mapped to relevant position in the ACK/NACK feedback bits sequence of descending carrier 1 correspondence (
With
The position), perhaps UE also can judge that there is dynamic dispatching in this subframe by the DAI value of adjacent sub-frame, but packet loss, do not go to detect data on the SPS PDSCH resource, process according to packet loss, namely this descending sub frame is produced 2 bit NACK as feedback information, and be mapped to relevant position in the ACK/NACK feedback bits sequence (
With
The position).
(2) for descending carrier 2: according to M=4, transmission mode is single codeword, and UE determines that at first the length of the ACK/NACK feedback bits sequence that this descending carrier is corresponding is the 1*M=4 bit, namely
=4; UE determines not receive on this descending carrier the PDSCH without corresponding PDCCH, namely
(
The SPS PDSCH packet number that expression UE receives at a carrier wave), therefore adopt first kind mode that the ACK/NACK feedback information that receives data on the descending carrier 2 is mapped to ACK/NACK feedback bits sequence corresponding to this descending carrier
In, concrete mode does not repeat them here with descending carrier 1; Then with the ACK/NACK feedback bits series connection of 2 descending carriers, obtain last ACK/NACK and send bit, shown in Fig. 5 C.
Embodiment three
The embodiment of the invention three provides a kind of processing method of ACK/NACK feedback bits, UE need to be in the ACK/NACK information (being M=4) of corresponding 4 descending sub frames of sub-frame of uplink feedback, descending sub frame 3 is the SPS subframe, the base station in descending carrier 1 dynamic dispatching descending sub frame 1,2 and 4, in descending carrier 2 dynamic dispatchings descending sub frame 2,3, base station end as shown in Figure 6A sends schematic diagram.
UE does not receive PDCCH(at the descending sub frame 2 of descending carrier 1 and has namely lost dynamic dispatching), do not receive PDCCH(in the descending sub frame 3 on descending carrier 2 and namely lost dynamic dispatching), the UE termination shown in Fig. 6 B is received schematic diagram.
Setting ACK/NACK feedback bits sequence corresponding to capable carrier wave c is
, wherein c is carrier index,
It is an ACK/NACK feedback bits sum that descending carrier is corresponding.
Based on above-mentioned situation, (1) for descending carrier 1, according to M=4, transmission mode is many code words, and UE determines that at first the length of the ACK/NACK feedback bits sequence that this descending carrier is corresponding is the 2*M=8 bit, namely
=8; Because descending sub frame 3 is the SPS subframe, UE determines to exist on the descending carrier 1 the SPS PDSCH transmission without corresponding PDCCH, namely
(
The SPS PDSCH packet number that expression UE receives at a carrier wave), and the DAI value that UE receives in any one descending sub frame is not 4, namely be not equal to M, so UE adopts the Equations of The Second Kind mode that the ACK/NACK feedback information that receives data on the descending carrier 1 is mapped to ACK/NACK feedback bits sequence corresponding to this descending carrier
In.
Concrete, UE is mapped to the DAI value in the ACK/NACK feedback bits sequence for 2 bit ACK in the descending sub frame (being descending sub frame 1) of DAI=1/NACK feedback information
With
The position; UE is mapped to the DAI value in the ACK/NACK feedback bits sequence for 2 bit ACK in the descending sub frame (being descending sub frame 4) of DAI=3/NACK feedback information
With
The position; Because UE receives SPS PDCCH at descending sub frame 3, the ACK/NACK feedback information that UE is corresponding with SPS PDSCH be mapped to descending carrier 1 correspondence ACK/NACK feedback bits sequence the rearmost position (namely
With
The position); UE does not receive data in descending sub frame 2, and can judge this subframe packet loss by adjacent DAI, namely this descending sub frame is produced 2 bit NACK as feedback information, and be mapped to relevant position in the ACK/NACK feedback bits sequence (
With
The position).
(2) for descending carrier 2: according to M=4, transmission mode is single codeword, and UE determines that at first the length of the ACK/NACK feedback bits sequence that this descending carrier is corresponding is the 1*M=4 bit, namely
=4; UE determines not receive on this descending carrier the PDSCH without corresponding PDCCH, namely
(
The SPS PDSCH packet number that expression UE receives at a carrier wave), therefore adopt first kind mode that the ACK/NACK feedback information that receives data on the descending carrier 2 is mapped to ACK/NACK feedback bits sequence corresponding to this descending carrier
In, concrete mode does not repeat them here with the descending carrier 1 among the embodiment 1; Then with the ACK/NACK feedback bits series connection of 2 descending carriers, obtain last ACK/NACK and send bit, shown in Fig. 6 C.
Embodiment four
Based on the inventive concept same with said method, a kind of subscriber equipment also is provided in the embodiment of the invention, as shown in Figure 7, this subscriber equipment comprises:
The first processing module 12, be used for when determining on a descending carrier, not exist without the semi-continuous scheduling SPS Physical Downlink Shared Channel PDSCH transmission of corresponding down control channel PDCCH or existing SPS PDSCH without corresponding PDCCH to transmit and receive the PDCCH that descending allocation index DAI value equals M, then adopt first kind mode that the ACK/NACK feedback information of described descending carrier is shone upon;
The second processing module 13 is used for existing SPS PDSCH without corresponding PDCCH to transmit and not receiving the PDCCH that the DAI value equals M at a descending carrier when determining, then adopts the Equations of The Second Kind mode that the ACK/NACK feedback information of described descending carrier is shone upon.
Described the first processing module 12, concrete is the single codeword transmission mode for working as described descending carrier, perhaps described descending carrier is many codeword transmission pattern and carries out the space when merging, the PDSCH of corresponding PDCCH will be received, or the PDSCH in the descending sub frame of the PDCCH of indication SPS resource release, or the ACK/NACK feedback information of the PDCCH of indication SPS resource release is mapped to DAI (k)-1 position of ACK/NACK feedback bits sequence corresponding to described descending carrier, the DAI value among the PDCCH that described DAI (k) receives in described descending sub frame for described subscriber equipment;
When described descending carrier is many codeword transmission pattern and does not carry out the space when merging, the ACK/NACK feedback information that receives the PDCCH that PDSCH in the descending sub frame of the PDSCH of corresponding PDCCH or the PDCCH that indication SPS resource discharges or indication SPS resource discharge is mapped to 2DAI (k)-1 and 2DAI (k)-2 position of ACK/NACK feedback bits sequence corresponding to described descending carrier, the DAI value among the PDCCH that described DAI (k) receives in described descending sub frame for described subscriber equipment.
Described the second processing module 13, concrete be used for when described descending carrier be that single codeword transmission mode or described descending carrier are many codeword transmission pattern and when carrying out the space merging, the ACK/NACK feedback information that receives the PDCCH that PDSCH in the descending sub frame of the PDSCH of corresponding PDCCH or the PDCCH that indication SPS resource discharges or indication SPS resource discharge is mapped to DAI (k)-1 position of ACK/NACK feedback bits sequence corresponding to described descending carrier, and described DAI (k) is the DAI value among the PDCCH that receives in described descending sub frame; And the ACK/NACK feedback information without the SPS PDSCH of corresponding PDCCH that receives on the described descending carrier is mapped to last 1 bit position of ACK/NACK feedback bits sequence corresponding to described descending carrier;
When described descending carrier is many codeword transmission pattern and does not carry out the space when closing, the ACK/NACK feedback information that receives the PDCCH that PDSCH in the descending sub frame of the PDSCH of corresponding PDCCH or the PDCCH that indication SPS resource discharges or indication SPS resource discharge is mapped to 2DAI (k)-1 and 2DAI (k)-2 position of ACK/NACK feedback bits sequence corresponding to described descending carrier, and described DAI (k) is the DAI value among the PDCCH that receives in described descending sub frame; And the ACK/NACK feedback information without the SPS PDSCH of corresponding PDCCH that receives on the described descending carrier is mapped to last 2 bit positions of ACK/NACK feedback bits sequence corresponding to described descending carrier.
This subscriber equipment also comprises:
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode in a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number does not represent the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (10)
1. the processing method of a positive acknowledgement ACK/ Negative Acknowledgement NACK feedback bits is characterized in that, comprising:
Subscriber equipment is receive data on N descending carrier, a M descending sub frame, wherein, N 〉=1, M 〉=1, the ACK/NACK feedback information of a described M descending sub frame transmits at same sub-frame of uplink;
Determine not exist on a descending carrier without the semi-continuous scheduling SPS Physical Downlink Shared Channel PDSCH transmission of corresponding down control channel PDCCH or exist without the SPS PDSCH transmission of corresponding PDCCH and receive the PDCCH that descending allocation index DAI value equals M when described subscriber equipment, then described subscriber equipment employing first kind mode is shone upon the ACK/NACK feedback information of described descending carrier;
Determine to exist without the SPS PDSCH transmission of corresponding PDCCH and do not receive the PDCCH that the DAI value equals M at descending carrier when described subscriber equipment, then described subscriber equipment employing Equations of The Second Kind mode is shone upon the ACK/NACK feedback information of described descending carrier.
2. the method for claim 1 is characterized in that, described subscriber equipment employing first kind mode is shone upon the ACK/NACK feedback information of described descending carrier, comprising:
When described descending carrier is that single codeword transmission mode or described descending carrier are many codeword transmission pattern and carry out the space when merging, the ACK/NACK feedback information that described subscriber equipment will receive the PDCCH that PDSCH in the descending sub frame of the PDSCH of corresponding PDCCH or the PDCCH that indication SPS resource discharges or indication SPS resource discharge is mapped to DAI (k)-1 position of ACK/NACK feedback bits sequence corresponding to described descending carrier, the DAI value among the PDCCH that described DAI (k) receives in described descending sub frame for described subscriber equipment;
When described descending carrier is many codeword transmission pattern and does not carry out the space when merging, the ACK/NACK feedback information that described subscriber equipment will receive the PDCCH that PDSCH in the descending sub frame of the PDSCH of corresponding PDCCH or the PDCCH that indication SPS resource discharges or indication SPS resource discharge is mapped to 2DAI (k)-1 and 2DAI (k)-2 position of ACK/NACK feedback bits sequence corresponding to described descending carrier, the DAI value among the PDCCH that described DAI (k) receives in described descending sub frame for described subscriber equipment.
3. the method for claim 1 is characterized in that, described subscriber equipment employing Equations of The Second Kind mode is shone upon the ACK/NACK feedback information of described descending carrier, comprising:
When described descending carrier is that single codeword transmission mode or described descending carrier are many codeword transmission pattern and carry out the space when merging, the ACK/NACK feedback information that described subscriber equipment will receive the PDCCH that PDSCH in the descending sub frame of the PDSCH of corresponding PDCCH or the PDCCH that indication SPS resource discharges or indication SPS resource discharge is mapped to DAI (k)-1 position of ACK/NACK feedback bits sequence corresponding to described descending carrier, the DAI value among the PDCCH that described DAI (k) receives in described descending sub frame for described subscriber equipment; And described subscriber equipment is mapped to the ACK/NACK feedback information without the SPS PDSCH of corresponding PDCCH that receives on the described descending carrier last 1 bit position of ACK/NACK feedback bits sequence corresponding to described descending carrier;
When described descending carrier is many codeword transmission pattern and does not carry out the space when closing, the ACK/NACK feedback information that described subscriber equipment will receive the PDCCH that PDSCH in the descending sub frame of the PDSCH of corresponding PDCCH or the PDCCH that indication SPS resource discharges or indication SPS resource discharge is mapped to 2DAI (k)-1 and 2DAI (k)-2 position of ACK/NACK feedback bits sequence corresponding to described descending carrier, the DAI value among the PDCCH that described DAI (k) receives in described descending sub frame for described subscriber equipment; And described subscriber equipment is mapped to the ACK/NACK feedback information without the SPS PDSCH of corresponding PDCCH that receives on the described descending carrier last 2 bit positions of ACK/NACK feedback bits sequence corresponding to described descending carrier.
4. method as claimed in claim 2 or claim 3 is characterized in that described method also comprises:
Described subscriber equipment does not receive the position of PDSCH or does not receive the position of the PDCCH that indicates the release of SPS resource or the position generation NACK of judgement packet loss corresponding in ACK/NACK feedback bits sequence corresponding to described descending carrier.
5. such as each described method in the claims 1 to 3, it is characterized in that described method also comprises:
Described subscriber equipment is by Physical Uplink Control Channel PUCCH or the described ACK/NACK feedback bits of Physical Uplink Shared Channel PUSCH multiplexing transmission sequence.
6. a subscriber equipment is characterized in that, comprising:
Receiver module is used for receive data on N descending carrier, a M descending sub frame, wherein, N 〉=1, M 〉=1, the ACK/NACK feedback information of a described M descending sub frame transmits at same sub-frame of uplink;
The first processing module, be used for when determining on a descending carrier, not exist without the semi-continuous scheduling SPS Physical Downlink Shared Channel PDSCH transmission of corresponding down control channel PDCCH or existing SPS PDSCH without corresponding PDCCH to transmit and receive the PDCCH that descending allocation index DAI value equals M, then adopt first kind mode that the ACK/NACK feedback information of described descending carrier is shone upon;
The second processing module is used for existing SPS PDSCH without corresponding PDCCH to transmit and not receiving the PDCCH that the DAI value equals M at a descending carrier when determining, then adopts the Equations of The Second Kind mode that the ACK/NACK feedback information of described descending carrier is shone upon.
7. subscriber equipment as claimed in claim 6 is characterized in that,
Described the first processing module, concrete is the single codeword transmission mode for working as described descending carrier, perhaps described descending carrier is many codeword transmission pattern and carries out the space when merging, the PDSCH of corresponding PDCCH will be received, or the PDSCH in the descending sub frame of the PDCCH of indication SPS resource release, or the ACK/NACK feedback information of the PDCCH of indication SPS resource release is mapped to DAI (k)-1 position of ACK/NACK feedback bits sequence corresponding to described descending carrier, the DAI value among the PDCCH that described DAI (k) receives in described descending sub frame for described subscriber equipment;
When described descending carrier is many codeword transmission pattern and does not carry out the space when merging, the ACK/NACK feedback information that receives the PDCCH that PDSCH in the descending sub frame of the PDSCH of corresponding PDCCH or the PDCCH that indication SPS resource discharges or indication SPS resource discharge is mapped to 2DAI (k)-1 and 2DAI (k)-2 position of ACK/NACK feedback bits sequence corresponding to described descending carrier, the DAI value among the PDCCH that described DAI (k) receives in described descending sub frame for described subscriber equipment.
8. subscriber equipment as claimed in claim 6 is characterized in that,
Described the second processing module, concrete be used for when described descending carrier be that single codeword transmission mode or described descending carrier are many codeword transmission pattern and when carrying out the space merging, the ACK/NACK feedback information that receives the PDCCH that PDSCH in the descending sub frame of the PDSCH of corresponding PDCCH or the PDCCH that indication SPS resource discharges or indication SPS resource discharge is mapped to DAI (k)-1 position of ACK/NACK feedback bits sequence corresponding to described descending carrier, and described DAI (k) is the DAI value among the PDCCH that receives in described descending sub frame; And the ACK/NACK feedback information without the SPS PDSCH of corresponding PDCCH that receives on the described descending carrier is mapped to last 1 bit position of ACK/NACK feedback bits sequence corresponding to described descending carrier;
When described descending carrier is many codeword transmission pattern and does not carry out the space when closing, the ACK/NACK feedback information that receives the PDCCH that PDSCH in the descending sub frame of the PDSCH of corresponding PDCCH or the PDCCH that indication SPS resource discharges or indication SPS resource discharge is mapped to 2DAI (k)-1 and 2DAI (k)-2 position of ACK/NACK feedback bits sequence corresponding to described descending carrier, and described DAI (k) is the DAI value among the PDCCH that receives in described descending sub frame; And the ACK/NACK feedback information without the SPS PDSCH of corresponding PDCCH that receives on the described descending carrier is mapped to last 2 bit positions of ACK/NACK feedback bits sequence corresponding to described descending carrier.
9. such as claim 7 or 8 described subscriber equipmenies, it is characterized in that, also comprise:
Generation module is for not receiving the position of PDSCH or do not receive the position of the PDCCH that indicates the release of SPS resource or the position generation NACK of judgement packet loss ACK/NACK feedback bits sequence corresponding to described descending carrier being corresponding.
10. such as each described subscriber equipment in the claim 6 to 8, it is characterized in that, also comprise:
Transport module is used for by Physical Uplink Control Channel PUCCH or the described ACK/NACK feedback bits of Physical Uplink Shared Channel PUSCH multiplexing transmission sequence.
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| CN102437895B (en) * | 2011-11-07 | 2014-03-19 | 电信科学技术研究院 | Method for transmitting uplink control information and apparatus thereof |
| CN102638897B (en) * | 2012-04-19 | 2014-05-07 | 电信科学技术研究院 | Resource scheduling method and resource scheduling device |
| US20150103703A1 (en) * | 2012-04-20 | 2015-04-16 | Broadcom Corporation | Resource Allocation In Different TDD Configurations With Cross Carrier Scheduling |
| CN103516489B (en) * | 2012-06-19 | 2016-09-14 | 电信科学技术研究院 | Transmission method, equipment and the system of a kind of ACK/NACK information |
| CN104811281B (en) * | 2014-01-23 | 2018-05-25 | 电信科学技术研究院 | Feedback method, terminal device and base station |
| CN106160949B (en) * | 2015-04-01 | 2020-02-04 | 电信科学技术研究院 | Method and equipment for sending and controlling feedback information |
| EP3764574B1 (en) * | 2015-08-10 | 2022-05-11 | Huawei Technologies Co., Ltd. | Methods for sending and receiving feedback information, user equipment, and access network device |
| CN107041002B (en) * | 2016-02-04 | 2023-11-17 | 中兴通讯股份有限公司 | Indication method and device for data channel subframes |
| WO2017161541A1 (en) * | 2016-03-24 | 2017-09-28 | 华为技术有限公司 | Method and apparatus for hybrid automatic repeat request feedback of downlink data |
| CN107294660B (en) * | 2016-03-31 | 2020-04-10 | 电信科学技术研究院 | ACK/NACK feedback sequence determination method and device |
| CN107734652B (en) | 2016-08-10 | 2020-01-21 | 电信科学技术研究院 | sUCCH transmission method, terminal and base station |
| EP4307585A3 (en) | 2017-07-13 | 2024-03-27 | Koninklijke Philips N.V. | Communication device, system and method for communication using feedback |
| CN109802763B (en) * | 2017-11-16 | 2020-07-07 | 展讯通信（上海）有限公司 | Feedback method and device |
| CN110149173B (en) * | 2018-02-13 | 2021-03-05 | 电信科学技术研究院有限公司 | Semi-persistent scheduling transmission method, network side equipment and user terminal |
| CN111385893B (en) * | 2018-12-29 | 2023-01-24 | 中兴通讯股份有限公司 | Resource scheduling processing method and device |
| WO2020220998A1 (en) * | 2019-04-30 | 2020-11-05 | 大唐移动通信设备有限公司 | Hybrid automatic repeat request feedback processing method, apparatus and device |
| CN112584529B (en) * | 2019-09-27 | 2022-08-02 | 维沃移动通信有限公司 | Method and equipment for processing physical downlink shared channel |
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