CN102075313A - 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 wideer system bandwidth (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 big 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, spectrum aggregating system schematic as shown in Figure 2.
Current LTE-A(LTE-Advanced, senior LTE) system determines to support 5 carrier waves to carry out polymerization at most, the TDD(Time Division Duplexing of LTE-A, time division duplex) the UE(User Equipment in the system, subscriber equipment) need be at the ACK(Acknowledge of 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 bigger 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) 3 multiplexing transmission schemes format(form) 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 bits, need carry out the space to the descending carrier of many code words (i.e. 2 code words) transmission and merge, promptly the ACK/NACK feedback information to a plurality of code words in the descending sub frame of a descending carrier carries 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 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 count M at the descending sub frame that same sub-frame of uplink carries out the ACK/NACK feedback, M is to different sub-frame of uplink and different uplink-downlink configuration value differences, and is as shown in table 1, wherein the k value of correspondence in each sub-frame of uplink
Be UE and need in this sub-frame of uplink, carry out the descending sub frame that ACK/NACK feeds back.
In the prior art, UE arranges the ACK/NACK feedback information of each descending carrier and descending sub frame correspondence according to specific order, constitutes ACK/NACK feedback bits sequence
, wherein c is a 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 is shone upon in proper order, promptly 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 of no 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; At last the ACK/NACK feedback bits sequence order cascade of each descending carrier is constituted together the ACK/NACK feedback bits sequence of UE.Wherein the value of DAI (promptly
) 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 on 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 (promptly 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 promptly 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 a SPS PDSCH business, UE termination shown in Fig. 3 C is received state, UE will detect SPS PDSCH on 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, from Fig. 4 B and Fig. 4 D as can be seen, the ACK/NACK mapping relations are inconsistent, cause base station and UE that understanding differently of ACK/NACK feedback information caused, influence 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 influence 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 receives 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 the semi-continuous scheduling SPS Physical Downlink Shared Channel PDSCH transmission of no corresponding down control channel PDCCH or have the SPS PDSCH transmission of no corresponding PDCCH and receive the PDCCH that descending allocation index DAI value equals M on a descending carrier when described subscriber equipment, then described subscriber equipment employing first kind mode is shone upon the ACK/NACK feedback information of described descending carrier;
When described subscriber equipment is determined on a descending carrier to exist the SPS PDSCH of no corresponding PDCCH to transmit and do not received the PDCCH that the DAI value equals M, then described subscriber equipment adopts the second class mode that the ACK/NACK feedback information of described descending carrier is shone upon.
The embodiment of the invention provides a kind of subscriber equipment, comprising:
Receiver module is used for receiving 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;
First processing module, be used for when the semi-continuous scheduling SPS Physical Downlink Shared Channel PDSCH transmission that determine on a descending carrier, not exist no corresponding down control channel PDCCH or exist the SPS PDSCH of no 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;
Second processing module is used for transmitting and not receiving the PDCCH that the DAI value equals M as the SPS PDSCH that determine on a descending carrier to exist no corresponding PDCCH, then adopts the second class 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 is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a single-frequency spectral system schematic in the prior art;
Fig. 2 is a prior art intermediate frequency spectrum paradigmatic system schematic diagram;
Fig. 3 A is a base station end transmit status schematic diagram in the prior art;
Fig. 3 B is a base station expectation ACK/NACK feedback bits mapping status schematic diagram in the prior art;
Fig. 3 C is a UE receiving-end state schematic diagram in the prior art;
Fig. 3 D is a 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,, defined PUCCH format 3 as ACK/NACK multiplexing transmission scheme in order to support bigger ACK/NACK feedback bits transmission.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 generate ACK/NACK feedback bits sequence to be feedback does not in proper order also have clear and definite method, thereby can cause base station and UE that understanding differently of ACK/NACK feedback information caused, influence system's retransmission performance.
At 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 is obtained 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, this 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 the semi-continuous scheduling SPS Physical Downlink Shared Channel PDSCH transmission of no corresponding down control channel PDCCH or exists the SPS PDSCH of no corresponding PDCCH to transmit and receive descending allocation index DAI value when equaling the PDCCH of M, execution in step 402 on a descending carrier;
When UE determines on a descending carrier to exist the SPS PDSCH of no corresponding PDCCH to transmit and do not receive the DAI value when equaling the PDCCH of M, execution in step 403.
Concrete, when UE determines
(
The SPS PDSCH packet number that expression UE receives on 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 carried out multiplexing transmission on PUCCH, the M value is specially in the table 1 corresponding to a sub-frame of uplink carried 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 the descending sub frame set of this sub-frame of uplink correspondence.
When ACK/NACK carried out multiplexing transmission on PUSCH, M can same PUCCH, and perhaps under 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 the ACK/NACK feedback bits sequence of descending carrier correspondence, 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 the 2DAI (k)-1 and 2DAI (k)-2 position of the ACK/NACK feedback bits sequence of descending carrier correspondence, 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 the ACK/NACK feedback bits sequence of this descending carrier correspondence according to the DAI value, therefore, even UE receives SPS PDSCH transmission in SPS PDSCH subframe owing to lose dynamic dispatching, UE also is not mapped to the ACK/NACK feedback information of this SPS PDSCH the rearmost position in the ACK/NACK feedback bits sequence of this descending carrier correspondence.
Step 403, UE adopts the second class mode that the ACK/NACK feedback information of descending carrier is shone upon.
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 the ACK/NACK feedback bits sequence of descending carrier correspondence, 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 of the SPS PDSCH of the corresponding PDCCH of the nothing that receives on the descending carrier last 1 bit position of the ACK/NACK feedback bits sequence of descending carrier correspondence;
When descending carrier wave is many codeword transmission pattern and not carry out the space fashionable, 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 the 2DAI (k)-1 and 2DAI (k)-2 position of the ACK/NACK feedback bits sequence of descending carrier correspondence, 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 of the SPS PDSCH of the corresponding PDCCH of the nothing that receives on the descending carrier last 2 bit positions of the ACK/NACK feedback bits sequence of descending carrier correspondence.
In the embodiment of the invention, UE also tackles and correspondingly in the ACK/NACK feedback bits sequence of descending carrier correspondence does not 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, other positions the position of shining upon according to the DAI value in first kind mode in the ACK/NACK feedback bits sequence of UE to this descending carrier correspondence produce NACK, and 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 second class mode, other positions the position of the position of shining upon according to the DAI value in the second class mode in the ACK/NACK feedback bits sequence of UE to this descending carrier correspondence and the ACK/NACK feedback information of SPS PDSCH mapping produce NACK, and 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 the second class mode is whether the ACK/NACK feedback information of SPS PDSCH to be mapped to the rearmost position of the ACK/NACK feedback bits sequence of descending carrier correspondence, therefore the above-mentioned ACK/NACK feedback bits production method ACK/NACK feedback information that also can be described as UE and will not have the SPS PDSCH of corresponding PDCCH is mapped to last 1 or 2 bit positions of the ACK/NACK feedback bits sequence of a descending carrier correspondence, 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 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 promptly 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.
The ACK/NACK feedback bits sequence of setting capable carrier wave c correspondence is
, wherein c is a carrier index,
It is the ACK/NACK feedback bits sum of a descending carrier correspondence.
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 of this descending carrier correspondence is the 2*M=8 bit, promptly
=8; UE does not receive the dynamic dispatching in descending carrier 1 ascending-descending subframes 3, because descending sub frame 3 be the SPS subframe, so UE determines to exist on the descending carrier 1 the SPS PDSCH of no corresponding PDCCH to transmit, promptly
(
The SPS PDSCH packet number that expression UE receives on a carrier wave), and the DAI value that UE receives at descending sub frame 4 is 4, equal M, so UE adopts the first kind mode ACK/NACK feedback information that receives data on the descending carrier 1 to be mapped to the ACK/NACK feedback bits sequence of this descending carrier correspondence
In.
Concrete, UE is mapped to the DAI value in the ACK/NACK feedback bits sequence for the 2 bit ACK/NACK feedback information in the descending sub frame (being descending sub frame 1) of DAI=1
With
The position; UE is mapped to the DAI value in the ACK/NACK feedback bits sequence for the 2 bit ACK/NACK feedback information in the descending sub frame (being descending sub frame 2) of DAI=2
With
The position; UE is mapped to the DAI value in the ACK/NACK feedback bits sequence for the 2 bit ACK/NACK feedback information in the descending sub frame (being descending sub frame 4) of DAI=4=M
With
The position, promptly 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 on 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 can not correctly receive data on former SPS PDSCH resource, obtain NACK, with the relevant position of this information mapping 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, handle according to packet loss, promptly 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 a single codeword, and UE determines that at first the length of the ACK/NACK feedback bits sequence of this descending carrier correspondence is the 1*M=4 bit, promptly
=4; UE determines not receive on this descending carrier the PDSCH of no corresponding PDCCH, promptly
(
The SPS PDSCH packet number that expression UE receives on a carrier wave), therefore adopt the first kind mode ACK/NACK feedback information that receives data on the descending carrier 2 to be mapped to the ACK/NACK feedback bits sequence of this descending carrier correspondence
In, concrete mode does not repeat them here with descending carrier 1; With the ACK/NACK feedback bits series connection of 2 descending carriers, the ACK/NACK that gets to the end sends bit, shown in Fig. 5 C then.
Embodiment three
The embodiment of the invention three provides a kind of processing method of ACK/NACK feedback bits, UE need 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 promptly lost dynamic dispatching), do not receive PDCCH(in the descending sub frame 3 on descending carrier 2 and promptly lost dynamic dispatching), the UE termination shown in Fig. 6 B is received schematic diagram.
The ACK/NACK feedback bits sequence of setting capable carrier wave c correspondence is
, wherein c is a carrier index,
It is the ACK/NACK feedback bits sum of a descending carrier correspondence.
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 of this descending carrier correspondence is the 2*M=8 bit, promptly
=8; Because descending sub frame 3 is the SPS subframe, UE determines to exist on the descending carrier 1 the SPS PDSCH transmission of no corresponding PDCCH, promptly
(
The SPS PDSCH packet number that expression UE receives on a carrier wave), and the DAI value that UE receives in any one descending sub frame is not 4, promptly be not equal to M, so UE adopts the second class mode ACK/NACK feedback information that receives data on the descending carrier 1 to be mapped to the ACK/NACK feedback bits sequence of this descending carrier correspondence
In.
Concrete, UE is mapped to the DAI value in the ACK/NACK feedback bits sequence for the 2 bit ACK/NACK feedback information in the descending sub frame (being descending sub frame 1) of DAI=1
With
The position; UE is mapped to the DAI value in the ACK/NACK feedback bits sequence for the 2 bit ACK/NACK feedback information in the descending sub frame (being descending sub frame 4) of DAI=3
With
The position; Because UE receives SPS PDCCH at descending sub frame 3, UE the ACK/NACK feedback information of SPS PDSCH correspondence is mapped to descending carrier 1 correspondence ACK/NACK feedback bits sequence the rearmost position (promptly
With
The position); UE does not receive data in descending sub frame 2, and can judge this subframe packet loss by adjacent DAI, promptly 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 a single codeword, and UE determines that at first the length of the ACK/NACK feedback bits sequence of this descending carrier correspondence is the 1*M=4 bit, promptly
=4; UE determines not receive on this descending carrier the PDSCH of no corresponding PDCCH, promptly
(
The SPS PDSCH packet number that expression UE receives on a carrier wave), therefore adopt the first kind mode ACK/NACK feedback information that receives data on the descending carrier 2 to be mapped to the ACK/NACK feedback bits sequence of this descending carrier correspondence
In, concrete mode does not repeat them here with the descending carrier among the embodiment 11; With the ACK/NACK feedback bits series connection of 2 descending carriers, the ACK/NACK that gets to the end sends bit, shown in Fig. 6 C then.
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:
Described first processing module 12, specifically being used for working as described descending carrier is the single codeword transmission mode, 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 the ACK/NACK feedback bits sequence of described descending carrier correspondence, 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 the 2DAI (k)-1 and 2DAI (k)-2 position of the ACK/NACK feedback bits sequence of described descending carrier correspondence, the DAI value among the PDCCH that described DAI (k) receives in described descending sub frame for described subscriber equipment.
Described second processing module 13, specifically be used for when described descending carrier be 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 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 the ACK/NACK feedback bits sequence of described descending carrier correspondence, and described DAI (k) is the DAI value among the PDCCH that receives in described descending sub frame; And the ACK/NACK feedback information of the SPS PDSCH of the corresponding PDCCH of the nothing that receives on the described descending carrier is mapped to last 1 bit position of the ACK/NACK feedback bits sequence of described descending carrier correspondence;
When described descending carrier is many codeword transmission pattern and not carry out the space fashionable, 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 the 2DAI (k)-1 and 2DAI (k)-2 position of the ACK/NACK feedback bits sequence of described descending carrier correspondence, and described DAI (k) is the DAI value among the PDCCH that receives in described descending sub frame; And the ACK/NACK feedback information of the SPS PDSCH of the corresponding PDCCH of the nothing that receives on the described descending carrier is mapped to last 2 bit positions of the ACK/NACK feedback bits sequence of described descending carrier correspondence.
This subscriber equipment also comprises:
Wherein, each module 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 under 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 a 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, 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 the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented 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, any those skilled in the art can think variation 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 receives 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 the semi-continuous scheduling SPS Physical Downlink Shared Channel PDSCH transmission of no corresponding down control channel PDCCH or have the SPS PDSCH transmission of no corresponding PDCCH and receive the PDCCH that descending allocation index DAI value equals M on a descending carrier when described subscriber equipment, then described subscriber equipment employing first kind mode is shone upon the ACK/NACK feedback information of described descending carrier;
When described subscriber equipment is determined on a descending carrier to exist the SPS PDSCH of no corresponding PDCCH to transmit and do not received the PDCCH that the DAI value equals M, then described subscriber equipment adopts the second class mode that the ACK/NACK feedback information of described descending carrier is shone upon.
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 the ACK/NACK feedback bits sequence of described descending carrier correspondence, 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 the 2DAI (k)-1 and 2DAI (k)-2 position of the ACK/NACK feedback bits sequence of described descending carrier correspondence, 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 adopts the second class mode that the ACK/NACK feedback information of described descending carrier is shone upon, and 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 the ACK/NACK feedback bits sequence of described descending carrier correspondence, 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 of the SPS PDSCH of the corresponding PDCCH of the nothing that receives on the described descending carrier last 1 bit position of the ACK/NACK feedback bits sequence of described descending carrier correspondence;
When described descending carrier is many codeword transmission pattern and not carry out the space fashionable, 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 the 2DAI (k)-1 and 2DAI (k)-2 position of the ACK/NACK feedback bits sequence of described descending carrier correspondence, 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 of the SPS PDSCH of the corresponding PDCCH of the nothing that receives on the described descending carrier last 2 bit positions of the ACK/NACK feedback bits sequence of described descending carrier correspondence.
4. as claim 2 or 3 described methods, it 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 the ACK/NACK feedback bits sequence of described descending carrier correspondence.
5. as each described method in the claim 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 receiving 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;
First processing module, be used for when the semi-continuous scheduling SPS Physical Downlink Shared Channel PDSCH transmission that determine on a descending carrier, not exist no corresponding down control channel PDCCH or exist the SPS PDSCH of no 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;
Second processing module is used for transmitting and not receiving the PDCCH that the DAI value equals M as the SPS PDSCH that determine on a descending carrier to exist no corresponding PDCCH, then adopts the second class 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 first processing module, specifically be used for when described descending carrier be 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 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 the ACK/NACK feedback bits sequence of described descending carrier correspondence, 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 the 2DAI (k)-1 and 2DAI (k)-2 position of the ACK/NACK feedback bits sequence of described descending carrier correspondence, 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 second processing module, specifically be used for when described descending carrier be 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 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 the ACK/NACK feedback bits sequence of described descending carrier correspondence, and described DAI (k) is the DAI value among the PDCCH that receives in described descending sub frame; And the ACK/NACK feedback information of the SPS PDSCH of the corresponding PDCCH of the nothing that receives on the described descending carrier is mapped to last 1 bit position of the ACK/NACK feedback bits sequence of described descending carrier correspondence;
When described descending carrier is many codeword transmission pattern and not carry out the space fashionable, 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 the 2DAI (k)-1 and 2DAI (k)-2 position of the ACK/NACK feedback bits sequence of described descending carrier correspondence, and described DAI (k) is the DAI value among the PDCCH that receives in described descending sub frame; And the ACK/NACK feedback information of the SPS PDSCH of the corresponding PDCCH of the nothing that receives on the described descending carrier is mapped to last 2 bit positions of the ACK/NACK feedback bits sequence of described descending carrier correspondence.
9. as claim 7 or 8 described subscriber equipmenies, it is characterized in that, also comprise:
Generation module is used for not receiving the position of PDSCH or not receiving the position of the PDCCH that indicates the release of SPS resource or the position generation NACK of judgement packet loss the ACK/NACK feedback bits sequence of described descending carrier correspondence is corresponding.
10. 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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