CN103209061A - Method for sending hybrid automatic repeat request-acknowledge character (HARQ-ACK) feedback information - Google Patents
Method for sending hybrid automatic repeat request-acknowledge character (HARQ-ACK) feedback information Download PDFInfo
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Abstract
An embodiment of the invention discloses a method for sending HARQ-ACK feedback information. The method is used for configuring different conditions for time division duplex (TDD) uplink and downlink of a plurality of component carriers (CCs) in carrier aggregation (CA). The method is characterized by comprising that user equipment (UE) receives physical downlink shared channel (PDSCH) data which is sent by a base station and scheduled by a physical downlink control channel (PDCCH), generates HARQ-ACK feedback information according to the received PDCCH and the PDSCH data, and sends the HARQ-ACK feedback information on a physical uplink control channel or the PUSCH according to an HARQ-ACK bound window configuration and timing relation determined when transmission of the HARQ-ACK feedback information on the PUCCH is required.
Description
Technical field
The present invention relates to the wireless communication system technologies field, particularly a kind of sending method of mixing automatic repeat requests (HARQ-ACK) feedback information.
Background technology
Long Term Evolution (LTE) system supports Frequency Division Duplexing (FDD) (FDD) and two kinds of duplex modes of time division duplex (TDD).Fig. 1 is the frame structure of TDD system.The length of each radio frames is 10ms, the field that it is divided into two length is 5ms.The time slot that it is 0.5ms that each field comprises 8 length and 3 special domain, i.e. descending pilot frequency time slot (DwPTS), protection be (GP) and uplink pilot time slot (UpPTS) at interval, and the length sum of these 3 special domain is 1ms.Each subframe is made of two continuous time slot, and namely k subframe comprises time slot 2k and time slot 2k+1.The TDD system supports 7 kinds of different upstream and downstream configurations, and as shown in table 1, D represents descending sub frame, and U represents sub-frame of uplink, and S represents the above-mentioned special subframe that comprises 3 special domain.
The upstream and downstream configuration of table 1:LTE TDD
Along with the user improves for the requirement of message transmission rate, people have proposed enhancing (LTE-A) system of LTE system.In LTE-A, support to obtain bigger bandwidth of operation by a plurality of member carriers of polymerization (CC, Component Carrier), be carrier aggregation (CA, Carrier Aggregation), constitutes communication system down link and up link, thereby support higher transmission rate.For example, in order to support the bandwidth of 100MHz, can obtain by the CC of 5 20MHz of polymerization.Here, each CC is called a residential quarter (Cell); And to a user terminal (UE), the base station can be configured in works among a plurality of Cell, and one of them is main Cell (PCC or Pcell), and other CC are called auxilliary Cell (SCC or Scell).
Stipulate in LTE-A TDD system: a plurality of Cell that condense together adopt identical upstream and downstream configuration, as shown in Figure 2:
CA shown in Figure 2 comprises 2 Cell, is respectively: main Cell and auxilliary Cell.Each Cell adopts identical TDD upstream and downstream configuration.In this example, the subframe 0,1,3～6 in each radio frames, 8 and 9 is configured to descending sub frame, and subframe 2 and subframe 7 are configured to sub-frame of uplink, (implication such as the table 1 of letter U, D, S among the figure).
For the data that receive from descending sub frame, UE need send the HARQ-ACK feedback information of positive acknowledgement (ACK) or Negative Acknowledgement (NACK) to realize HARQ mechanism by sub-frame of uplink to the base station, for this reason, several descending sub frames can be divided into a HARQ-ACK bundled window, the HARQ-ACK feedback information that belongs to each descending sub frame of same HARQ-ACK bundled window is unified in same sub-frame of uplink and sends.As shown in Figure 2, the subframe 0,1 of filling with grid, 3 and subframe 9 belong to same HARQ-ACK bundled window, the subframe 4,5,6,8 of filling with oblique line belongs to another HARQ-ACK bundled window.
For the transmission of the HARQ-ACK feedback information of same HARQ-ACK bundled window, UE need determine at which sub-frame of uplink to send, and the Cell under this subframe, and sends on concrete which channel in the subframe.
For the sub-frame of uplink that sends the HARQ-ACK feedback information, then to determine according to the TDD upstream and downstream configuration of the Cell that is used for transmission HARQ-ACK feedback information; Particularly, it is the timing relationship of determining the HARQ-ACK feedback information according to the TDD upstream and downstream configuration of Cell, described timing relationship is exactly that finger is received the subframe of data and be used for to be sent time interval (TDD can represent with number of sub-frames) between the subframe of HARQ-ACK feedback information, for example UE receives downlink data in certain subframe, as long as this moment, UE knew this timing relationship, namely N subframe after receiving the subframe of downlink data sends corresponding HARQ-ACK feedback information, UE can determine which subframe to send the HARQ-ACK feedback information in as long as determine this N; Be example with Fig. 2, the timing relationship indication that configuration is determined according to the TDD upstream and downstream of the HARQ-ACK feedback information of the downlink data that receives on the subframe 0, need after the 7th sub-frame of uplink, then UE can be at subframe 7 transmission HARQ-ACK feedback informations.
For the cell and the channel that send the HARQ feedback information, existing protocol is to stipulate like this: when system configuration is in same subframe, when PUCCH and PUSCH cannot transmit simultaneously, if the PUSCH of main Cell and auxilliary Cell all is not scheduled, then the HARQ-ACK feedback information sends at the PUCCH of main Cell channel; If have only the PUSCH of main Cell to be scheduled, the PUSCH of auxilliary Cell is not scheduled, and then the HARQ-ACK feedback information sends at the PUSCH of main Cell channel; If the PUSCH of main Cell is scheduled, and the PUSCH of auxilliary Cell also is scheduled, and then the HARQ-ACK feedback information sends at the PUSCH of main Cell channel; If the PUSCH of main Cell is not scheduled, the PUSCH of auxilliary Cell is scheduled, and then the HARQ-ACK feedback information sends at the PUSCH channel of auxilliary Cell; When system configuration is in same subframe, when PUCCH and PUSCH can transmit simultaneously, in subframe 7, no matter whether the PUSCH of main Cell and auxilliary Cell was scheduled, and the HARQ-ACK feedback information all sends at the PUCCH of main Cell channel.
Above-mentioned HARQ-ACK feedback information sending method has been realized existing employing CA, and a plurality of Cell adopt the support of HARQ mechanism in the TDD system of identical upstream and downstream configuration among the CA; But since under situation about having among the CA each Cell adjacent may dispose different TDD uplink-downlink configuration (frequently be different TD-SCDMA configuration as the neighbour) frequently, at this moment, if still adopt identical TDD uplink-downlink configuration to form CA to these Cell, will produce more serious adjacent interference frequently; And in fact, when the distance of the frequency domain between a plurality of Cell that form CA was enough big, these Cell can adopt different TDD uplink-downlink configuration fully and can not interfere with each other; Therefore, at present in the follow-up study of LTE-A TDD system, how effectively to realize the HARQ mechanism under the different situation of the TDD uplink-downlink configuration of a plurality of Cell of CA, become an important research project.So incident, be exactly how UE will send the HARQ-ACK feedback information and support in this case HARQ mechanism; And for this technical problem, also do not have concrete implementation method at present.
Summary of the invention
In view of this, the invention provides a kind of sending method of HARQ-ACK feedback information, can support under the TDD uplink-downlink configuration different situations of a plurality of Cell of carrier aggregation in the TDD system the correct feedback of HARQ-ACK information.
For reaching above-mentioned purpose, technical scheme of the present invention specifically is achieved in that
A kind of sending method of HARQ-ACK feedback information, the TDD upstream and downstream that is used for a plurality of member carrier CC of carrier aggregation CA disposes different situations, and this method comprises:
UE receives the PDSCH data of the PDCCH scheduling of base station transmission;
UE generates the HARQ-ACK feedback information according to the described PDCCH and the PDSCH data that receive;
The configuration of HARQ-ACK bundled window and timing relationship that UE determines when PUCCH transmission HARQ-ACK feedback information as required send described HARQ-ACK feedback information at PUCCH or PUSCH.
As seen from the above technical solution, the sending method of this HARQ-ACK feedback information provided by the invention, in the time of can guaranteeing the different TDD upstream and downstream configuration of Cell configuration in the CA system, when PUSCH sends the HARQ-ACK feedback information, the understanding of the timing relationship of the HARQ-ACK feedback information of base station and UE can not obscured, thereby can in the different CA system of the upstream and downstream configuration of a plurality of Cell, carry out correct HARQ-ACK transmission of feedback information, and then support the different situation of uplink-downlink configuration of a plurality of Cell of carrier aggregation effectively.
Description of drawings
Fig. 1 is the frame structure schematic diagram of existing TDD system;
Fig. 2 is the upstream and downstream configuration schematic diagram of each CC among the existing same CA;
Fig. 3 is the schematic flow sheet of the sending method of HARQ-ACK feedback information of the present invention;
During Fig. 4 upstream and downstream configuration different for each Cell in the preferred embodiment of the present invention adopts, the subframe position schematic diagram that the HARQ-ACK feedback information sends at PUCCH and PUSCH;
When Fig. 5 adopted different upstream and downstreams to dispose for each Cell, if not according to method of the present invention, the HARQ-ACK feedback information of auxilliary residential quarter sent the schematic diagram of misunderstanding at PUSCH.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
The present invention mainly is at the TDD system that has disposed CA, and the TDD upstream and downstream of a plurality of Cell of base station configuration is different, and the situation of the UE configuration effort that inserts this base station a Cell or a plurality of (some or all of) Cell in CA.
Under these circumstances, the present invention determines the HARQ-ACK feedback information (PUSCH that may be main Cell also may be the PUSCH of auxilliary Cell) that need send at PUSCH for UE, makes it dispose and be consistent in timing relationship that PUSCH sends and the configuration of HARQ-ACK bundled window with in timing relationship and the HARQ-ACK bundled window of PUCCH (PUCCH is only in main Cell) when sending.
The timing relationship of the HARQ-ACK feedback information that to be UE send at the PUCCH of main Cell is to determine according to the TDD upstream and downstream configuration of the auxilliary Cell of the TDD upstream and downstream configuration of main Cell and configuration, and the HARQ-ACK feedback information timing relationship that sends at PUSCH, then no longer determine according to the TDD upstream and downstream configuration of Cell (may be that main Cell also may be auxilliary Cell), but directly use the timing relationship of when PUCCH sends the HARQ-ACK feedback information, determining to send.
Which in addition, when determining to send the Cell of HARQ-ACK feedback information, if there is the PUSCH of a plurality of Cell to be scheduled simultaneously, then can determine in the PUSCH of Cell, to transmit according to the priority of each Cell; And, among the PUSCH among the configuration of HARQ-ACK bundled window and the PUCCH configuration of HARQ-ACK bundled window be consistent.
Concrete process of transmitting may further comprise the steps as shown in Figure 3:
Step 301:UE receives the PDSCH data of passing through the PDCCH scheduling that the base station sends.
Step 302:UE generates corresponding HARQ-ACK feedback information according to the described PDCCH that receives and PDSCH data.
Specifically, when receiving, data correctly then generate ACK message; When data receive the wrong NACK of generation message; Do not receive that PDCCH produces DTX.
Step 303:UE sends the HARQ-ACK feedback information according to HARQ-ACK bundled window and the timing relationship determined at PUCCH or PUSCH when PUCCH transmits the HARQ-ACK feedback information.
In other words, even timing relationship and bundled window configuration and timing relationship when PUCCH sends and the binding window configuration of the HARQ-ACK feedback information that the descending sub frame data produce when PUSCH sends is consistent, and the TDD upstream and downstream configuration relation of the Cell when need not to go up transmission according to PUSCH is definite.
In this step, the HARQ-ACK feedback information sends in PUCCH or PUSCH concrete determines that method can be: when system configuration for (to refer to the identical subframe in sequential position among a plurality of Cell in same subframe, down together), when UE cannot transmit PUCCH and PUSCH simultaneously, if (the TDD upstream and downstream configuration of main Cell and auxilliary Cell is not simultaneously in main Cell is up subframe, main Cell is up subframe, auxilliary Cell not necessarily also is up subframe), the PUSCH of main Cell and all auxilliary Cell all is not scheduled, and then the HARQ-ACK feedback information sends at the PUCCH of main Cell channel; If in main Cell is up subframe, have only the PUSCH of main Cell to be scheduled, the PUSCH of auxilliary Cell is not scheduled, and then the HARQ-ACK feedback information sends at the PUSCH of Pcell channel; If in Pcell was up subframe, the PUSCH of Pcell was scheduled, and the PUSCH of Scell also is scheduled, and then the HARQ-ACK feedback information sends at the PUSCH of Pcell channel; If in Pcell is up subframe, the PUSCH of Pcell is not scheduled, the PUSCH of Scell is scheduled, then the HARQ-ACK feedback information sends in the PUSCH of Scell, in addition, which if there is the PUSCH of a plurality of Scell to be scheduled simultaneously, then determine in the PUSCH of Scell, to transmit according to the priority of each Scell.In the Scell that is scheduled, be limit priority with the minimum Scell of index for example, can certainly be with index the highest Scell be limit priority.
In the above-mentioned example, the HARQ-ACK feedback information only can send in main Cell is up subframe, that is to say, if same subframe is descending subframe at Pcell, Scell is up subframe, no matter send the HARQ-ACK feedback information at the PUSCH of this subframe Scell, whether satisfy the timing relationship of the HARQ-ACK feedback information of agreement regulation so, the HARQ-ACK feedback information can not send in this subframe.
When system configuration is in same subframe, when UE can transmit PUCCH and PUSCH simultaneously, be up subframe for main Cell, no matter whether the PUSCH of main Cell and auxilliary Cell is scheduled, the HARQ-ACK feedback information all sends at the PUCCH of main Cell channel.
In addition, for the sub-frame of uplink of determining to send the HARQ-ACK feedback information, the position of the HARQ-ACK bundled window of the PUCCH on the same Cell and PUSCH and measure-alike.That is, for a certain sub-frame of uplink, the position of the HARQ-ACK bundled window of the PUCCH on the Pcell and PUSCH and measure-alike; The position of the HARQ-ACK bundled window of the PUCCH on the same Scell and PUSCH and measure-alike, but position and the size of the HARQ-ACK bundled window on the position of the HARQ-ACK bundled window on the Pcell and size and the Scell can be different, when a plurality of Scell was arranged, the position of the HARQ-ACK bundled window on the different Scell also can be different with size.
Below by a preferred embodiment the inventive method is elaborated.
Supposing to belong to two Cell of same CA, is respectively main Cell and auxilliary Cell, and main Cell adopts TDD upstream and downstream configuration 2, and auxilliary Cell adopts TDD upstream and downstream configuration 1, as shown in Figure 4:
The subframe 0,1,3～6 of main Cell, 8 and 9 is configured to descending sub frame, and subframe 2 and subframe 7 are configured to sub-frame of uplink.
The subframe 0,1,4～6 and 9 of auxilliary Cell is configured to descending sub frame, and subframe 2,3,7 and 8 is configured to sub-frame of uplink.
On main Cell, subframe 2 and subframe 7 are configured to sub-frame of uplink, according to present agreement regulation, when the HARQ-ACK feedback information when PUCCH sends, only send at the PUCCH of main Cell, namely the HARQ-ACK feedback information of main Cell and auxilliary Cell sends at the PUCCH of subframe 2 and subframe 7; Simultaneously the timing relationship that sends of the HARQ-ACK feedback information of auxilliary Cell defer to main Cell's or with reference to the timing relationship of Cell, the timing that the reference HARQ-ACK feedback information here sends is exactly the timing relationship of main Cell, is the timing relationship of HARQ-ACK feedback information and the detailed description of bundled window below.
The HARQ-ACK bundled window of main Cell comprises subframe 4,5,6,8 (filling with oblique line), and their HARQ-ACK feedback information is in subframe 2 (among Fig. 4 among the main Cell corresponding subframe illustrate with dash box) transmission; Another HARQ-ACK bundled window comprises subframe 0,1,3 and subframe 9 (filling with grid), and their HARQ-ACK feedback information sends in subframe 7.
The HARQ-ACK bundled window of auxilliary Cell comprises subframe 4,5,6 (filling with oblique line), and their HARQ-ACK feedback information sends in subframe 2; Another HARQ-ACK bundled window comprises subframe 0,1 and subframe 9 (filling with grid), and their HARQ-ACK feedback information sends in subframe 7.
Because the processing to the HARQ-ACK feedback information is that unit carries out with the HARQ-ACK bundled window, for avoiding giving unnecessary details, in the follow-up explanation of the present invention, is that example describes with one group of HARQ-ACK bundled window shown in Fig. 4 bend frame only.
When system configuration is in same subframe, when PUCCH and PUSCH cannot transmit simultaneously:
At sub-frame of uplink 2, main Cell and auxilliary Cell are sub-frame of uplink, if main Cell and the PUSCH of auxilliary Cell on subframe 2 all are not scheduled, then the subframe 4,5,6 of main Cell, 8 and the subframe 4,5 of auxilliary Cell, 6 HARQ-ACK feedback information send at the PUCCH channel of the subframe 2 of main Cell; If the PUSCH of main Cell on subframe 2 is scheduled, the auxilliary PUSCH of Cell on subframe 2 is not scheduled, then the subframe 4,5,6 of main Cell, 8 and the subframe 4,5 of auxilliary Cell, 6 HARQ-ACK feedback information send at the PUSCH channel of the subframe 2 of main Cell; If main Cell and the PUSCH of auxilliary Cell on subframe 2 all are scheduled, then the subframe 4,5,6 of main Cell, 8 and the subframe 4,5 of auxilliary Cell, 6 HARQ-ACK feedback information send at the PUSCH channel of the subframe 2 of main Cell; If the PUSCH of main Cell on subframe 2 is not scheduled, the auxilliary PUSCH of Cell on subframe 2 is scheduled, then the subframe 4,5,6 of main Cell, 8 and the subframe 4,5 of auxilliary Cell, 6 HARQ-ACK feedback information send at the PUSCH channel of the subframe 2 of auxilliary Cell.
At sub-frame of uplink 2, when the HARQ-ACK feedback information transmits at the PUCCH of main Cell, the HARQ-ACK bundled window of main Cell comprises subframe 4,5,6,8, HARQ-ACK bundled window size is 4, the HARQ-ACK bundled window of auxilliary Cell comprises subframe 4,5,6, and HARQ-ACK bundled window size is 3; When the HARQ-ACK feedback information transmits at the PUSCH of main Cell, the HARQ-ACK bundled window of main Cell comprises subframe 4,5,6,8, HARQ-ACK bundled window size is 4, and the HARQ-ACK bundled window of auxilliary Cell comprises subframe 4,5,6, and HARQ-ACK bundled window size is 3; When the HARQ-ACK feedback information transmits at the PUSCH of auxilliary Cell, the HARQ-ACK bundled window of main Cell comprises subframe 4,5,6,8, HARQ-ACK bundled window size is 4, and the HARQ-ACK bundled window of auxilliary Cell1 comprises subframe 4,5,6, and HARQ-ACK bundled window size is 3.
In subframe 8, main Cell is that descending sub frame, auxilliary Cell are sub-frame of uplink, and no matter whether the auxilliary PUSCH of Cell on subframe 2 is scheduled, and the PUSCH that is scheduled on the subframe 8 can transmitting HARQ-ACK feedback information.
When system configuration is in same subframe, when PUCCH and PUSCH can transmit simultaneously:
At sub-frame of uplink 2, no matter whether the PUSCH of main Cell and auxilliary Cell is scheduled, the subframe 4,5,6 of main Cell, 8 and the subframe 4,5 of auxilliary Cell, 6 HARQ-ACK feedback information send at the PUCCH channel of the subframe 2 of main Cell.
The TDD upstream and downstream that the present invention does not continue to use Cell among the existing CA disposes the transmission thinking of the HARQ-ACK feedback information when identical, when determining the transmission subframe of HARQ-ACK feedback information, for the HARQ-ACK feedback information that need send at PUSCH, no longer the TDD upstream and downstream according to Cell disposes to determine timing relationship and the configuration of HARQ-ACK bundled window, mainly be for fear of the configuration of the TDD upstream and downstream of a plurality of Cell not simultaneously, the base station that might take place and UE send obscuring of timing relationship to the HARQ-ACK feedback information of auxilliary Cell, and then cause the chaotic problem of transfer of data, it is as follows that particular problem produces reason:
The HARQ-ACK feedback information that transmits at PUSCH has two kinds of situations, and a kind of is at the PUSCH of main Cell transmission HARQ-ACK feedback information, and a kind of is at the PUSCH of auxilliary Cell transmission HARQ-ACK feedback information; When the PUSCH of auxilliary Cell transmission HARQ-ACK feedback information, if according to existing mode, then need to come according to the TDD upstream and downstream configuration of auxilliary Cell the timing relationship of the definite HARQ-ACK of transmission feedback information, and owing to determine in the process of timing relationship, UE need pass through to detect the control signaling uplink authorization (UL Grant) that is used for scheduling PUSCH, but because blind check has the failure possibility; When the base station has sent UL Grant and UE when not detecting UL Grant, the understanding to the timing relationship of HARQ-ACK feedback information between base station and the UE will be obscured.And the configuration of HARQ bundled window is consistent when also being consistent because of timing relationship, if the HARQ bundled window is inconsistent, and the confusion that also can cause the HARQ feedback information to send.
And need not detect UL Grant at the PUCCH of main Cell transmission HARQ-ACK feedback information, so can not produce this problem.
Giving a concrete illustration, suppose to belong to two Cell of same CA, is respectively main Cell and auxilliary Cell, and main Cell adopts TDD upstream and downstream configuration 2, and auxilliary Cell adopts TDD upstream and downstream configuration 1, as shown in Figure 5:
According to existing protocol, if the PUSCH of the subframe of main Cell 2 has been scheduled, descending sub frame 4, the HARQ-ACK feedback information of subframe 5 sends at the PUSCH of subframe 2; If the PUSCH of the subframe of main Cell 2 is not scheduled, descending sub frame 4, the HARQ-ACK feedback information of subframe 5 sends at the PUCCH of subframe 2.
The PDSCH data of auxilliary Cell send the HARQ-ACK feedback information of auxilliary Cell at the PUSCH of auxilliary Cell according to the timing relationship of the definite HARQ-ACK feedback information of the TDD upstream and downstream configuration of auxilliary Cell, if the PUSCH of subframe 8 has been scheduled, the HARQ-ACK feedback information of descending sub frame 4 sends at the PUSCH of subframe 8; If the PUSCH of the subframe 8 of auxilliary Cell is not scheduled, the HARQ-ACK feedback information of descending sub frame 4 sends in the PUCCH of subframe 2 transmission or PUSCH.
If but base station scheduling the PUSCH of subframe 8 of auxilliary Cell, and UE does not detect the UL Grant of scheduling subframe 8PUSCH, then the base station thinks that the HARQ-ACK feedback information of auxilliary Cell descending sub frame 4 should send at the PUSCH of subframe 8, UE can think that then the base station do not dispatch the PUSCH of subframe 8, and the HARQ-ACK feedback information that will assist Cell descending sub frame 4 sends at PUCCH or the PUSCH of subframe 2, base station and UE timing relationship that the HARQ-ACK feedback information of auxilliary Cell is sent has produced and has obscured like this, thereby causes the confusion of transfer of data.
By the above embodiments as seen, the sending method of this HARQ-ACK feedback information of the present invention, in the time of can guaranteeing the different TDD upstream and downstream configuration of Cell configuration in the CA system, when PUSCH sends the HARQ-ACK feedback information, the understanding of the timing relationship of the HARQ-ACK feedback information of base station and UE can not obscured, thereby can in the different CA system of the upstream and downstream configuration of a plurality of Cell, carry out correct HARQ-ACK transmission of feedback information, and then support the different situation of uplink-downlink configuration of a plurality of Cell of carrier aggregation effectively.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (8)
1. sending method of mixing automatic repeat requests HARQ-ACK feedback information is used for the different situation of TDD upstream and downstream configuration of a plurality of member carrier CC of carrier aggregation CA, it is characterized in that this method comprises:
User terminal UE receives the downlink physical shared channel PDSCH data of the downlink physical control channel PDCCH scheduling of base station transmission;
UE generates the HARQ-ACK feedback information according to the described PDCCH and the PDSCH data that receive;
The HARQ-ACK bundled window of determining when control channel PUCCH goes up transmission HARQ-ACK feedback information of UE going as required physically disposes and timing relationship, sends described HARQ-ACK feedback information at PUCCH or Physical Uplink Shared Channel PUSCH.
2. method according to claim 1, it is characterized in that, the HARQ-ACK bundled window of determining when control channel PUCCH goes up transmission HARQ-ACK feedback information of described UE going as required physically disposes and timing relationship, sends the HARQ-ACK feedback information at PUCCH or PUSCH, comprising:
The HARQ-ACK feedback information sends at the PUCCH of main plot Pcell, perhaps when the PUSCH of Pcell and auxilliary residential quarter Scell sends, adopts the identical configuration of HARQ-ACK bundled window and timing relationship.
3. method according to claim 2, it is characterized in that, described identical timing relationship, comprise: if the HARQ-ACK feedback information need be when PUCCH sends, determined to be used at Pcell the subframe of transmission HARQ-ACK feedback information, then the HARQ-ACK feedback information need still send the HARQ-ACK feedback information with this subframe when PUSCH sends.
4. according to claim 2 or 3 described methods, it is characterized in that described HARQ feedback information sends at the PUCCH of Pcell, perhaps the PUSCH at Pcell and Scell sends, and comprising:
When system configuration is in same subframe, when PUCCH and PUSCH cannot transmit simultaneously, if in Pcell was up subframe, the PUSCH of all Scell of Pcell and configuration all was not scheduled, then the HARQ-ACK feedback information sends at the PUCCH of Pcell; If in Pcell is up subframe, have only the PUSCH of Pcell to be scheduled, there is not the PUSCH of Scell to be scheduled, then the HARQ-ACK feedback information sends at the PUSCH of Pcell; If in Pcell was up subframe, the PUSCH of Pcell was scheduled, and the PUSCH of Scell also is scheduled, and then the HARQ-ACK feedback information sends at the PUSCH of Pcell channel; If in Pcell was up subframe, the PUSCH of Pcell was not scheduled, the PUSCH of Scell is scheduled, and then the HARQ-ACK feedback information sends at the PUSCH of the Scell that is scheduled.
5. method according to claim 4 is characterized in that, the PUSCH of described Pcell is not scheduled, and the PUSCH of Scell is scheduled, and then the HARQ-ACK feedback information sends at the PUSCH of the Scell that is scheduled, comprising:
If there is the PUSCH of a plurality of Scell to be scheduled simultaneously, then determine to send the Scell of HARQ-ACK feedback information according to the priority of each Scell.
6. method according to claim 5 is characterized in that, described priority according to each Scell is determined the Scell of transmission HARQ-ACK feedback information, comprising:
In the Scell that is scheduled, the Scell that index is minimum or the highest is limit priority.
7. according to claim 2 or 3 described methods, it is characterized in that described HARQ-ACK feedback information sends at the PUCCH of Pcell, perhaps the PUSCH at Pcell and Scell sends, and comprising:
When system configuration is in same subframe, when PUCCH and PUSCH can transmit simultaneously, if in Pcell is up subframe, no matter whether the PUSCH of the Scell of Pcell and configuration is scheduled, the HARQ-ACK feedback information is all sending at the PUCCH of Pcell channel.
8. according to claim 2 or 3 described methods, it is characterized in that described HARQ-ACK feedback information sends at the PUCCH of main plot Cell, perhaps the PUSCH at Psell and Scell sends, and comprising:
Be descending and Scell is up subframe for Pcell, the HARQ-ACK feedback information not PUSCH channel on the Scell of this subframe correspondence sends.
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| WO2015062078A1 (en) * | 2013-11-01 | 2015-05-07 | 华为技术有限公司 | Transmission method for uplink control information, base station and user equipment |
| CN104753655A (en) * | 2013-12-31 | 2015-07-01 | 上海贝尔股份有限公司 | Method and device for decoding HARQ (hybrid automatic repeat request) coded information in eNB (evolved node B) during PUCCH (physical uplink control channel) configuration stage |
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