CN107294665A

CN107294665A - The feedback method and equipment of HARQ-ACK information

Info

Publication number: CN107294665A
Application number: CN201610298403.8A
Authority: CN
Inventors: 王轶; 张世昌; 李迎阳
Original assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Current assignee: Beijing Samsung Telecom R&D Center; Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Priority date: 2016-04-01
Filing date: 2016-05-06
Publication date: 2017-10-24

Abstract

Present applicant proposes a kind of feedback method of HARQ ACK informations, the method provided according to the application, UE is first successively in each feedback HARQ ACK corresponding time-frequency binding window of sub-frame of uplink, receive the DL GRANT of dispatching downlink HARQ transmission, the DL DAI in DL GRANT are obtained, and determine each DL DAI mapping value；Then, according to corresponding DL DAI mapping value, the HARQ ACK bits of the corresponding time-frequency binding window of each feedback HARQ ACK sub-frame of uplink are respectively mapped in the corresponding bits of feedback bits sequence, and according to corresponding DL DAI mapping value, the HARQ ACK bits that the corresponding time-frequency of multiple feedback HARQ ACK sub-frame of uplink is bound into window are mapped in the corresponding bits of feedback bits sequence；Finally, corresponding HARQ ACK are sent in transmissible sub-frame of uplink.Disclosed herein as well is a kind of feedback method of HARQ ACK informations.UE sends HARQ ACK according to the configured information of base station on the carrier wave of instruction.Using method and apparatus disclosed in the present application, it is possible to increase the efficiency of HARQ ACK feedbacks, so that it is guaranteed that UE downlink peak rates.

Description

The feedback method and equipment of HARQ-ACK information

Technical field

The present invention relates to wireless communication system technologies, more particularly to the feedback method of HARQ-ACK information and set It is standby.

Background technology

Long Term Evolution (LTE) system supports FDD (FDD) and two kinds of duplex sides of time division duplex (TDD) Formula.Fig. 1 is the frame structure of TDD system.The length of each radio frames is 10ms, and it is divided into two length For 5ms field.Each field includes time slot and 3 special domains of 8 length for 0.5ms, i.e., descending to lead Frequency time slot (DwPTS), protection interval (GP) and uplink pilot time slot (UpPTS), this 3 special domains Length sum be 1ms.TDD system supports 7 kinds of different TDD upstream and downstreams configurations, as shown in table 1. In table 1, D represents descending sub frame, and U represents sub-frame of uplink, and S represents the above-mentioned special son for including 3 special domains Frame.

Table 1：LTE TDD upstream and downstream configuration

In enhanced LTE (LTE-A) system, pass through carrier aggregation (CA, Carrier Aggregation) Multiple member carriers (CC, Component Carrier) polymerize to obtain bigger bandwidth of operation by technology, from And can further improve message transmission rate.Wherein, one cell (Cell) of each CC correspondences, according to mesh Preceding LTE standard (Rel-12), UE is at best able to while work in 5 CC, one of them be main CC (Pcell, Primary Cell), and other CC are referred to as auxiliary CC (Scell, Secondary Cell).

In the downlink communication of lte-a system, pass through hybrid automatic repeat-request (HARQ, Hybrid Automatic Repeat reQuest) technology ensure downlink data receive reliability.UE receives downstream grants (DL-GRANT), wherein DL-GRANT is by Physical Downlink Control Channel (PDCCH) or enhanced physics Down control channel (EPDCCH) is carried, and the configured information in DL-Grant receives physical down and shared Channel (PDSCH), in the PDSCH that receives each transmission block (Transmission Block, TB), or receive instruction semi-continuous scheduling (SPS, Semi-Persistent Scheduling) release thing Reason down control channel (PDCCH) (is referred to as descending HARQ transmission) by both above-mentioned below, and UE is needed (to be properly received) bit or NACK to base station feedback ACK by corresponding sub-frame of uplink (is to be properly received Or lose) bit, hereafter referred to collectively as HARQ-ACK bits., will if base station receives NACK bits Retransmit the corresponding transmission blocks of NACK or indicate the PDCCH of SPS releases.According to HARQ-ACK feedback mechanisms Difference, LTE-A standards define the corresponding HARQ-ACK bit numbers for determining to need to feed back and corresponding The method of HARQ-ACK bit values.

In FDD system, if UE passes through Physical Uplink Shared Channel on some sub-frame of uplink n (PUSCH) HARQ-ACK bits are fed back, then need the HARQ-ACK bit numbers of feedback to be configured by UE Carrier number and each carrier wave on transmission mode (TB transmission mode or two TB transmission mode) Determine.The each carrier wave configured for UE, if transmission mode is a TB, carrier wave correspondence one HARQ-ACK bits, if transmission mode is two TB, the carrier wave two HARQ-ACK ratios of correspondence It is special.These bits are arranged with carrier index ascending order, and composition UE finally feeds back in sub-frame of uplink n (the HARQ-ACK bit sequences refer to the HARQ-ACK before channel coding to HARQ-ACK bit sequences Bit sequence, similarly hereinafter).

In a tdd system, UE needs the HARQ-ACK bit numbers of feedback to depend on some sub-frame of uplink n Carried in the uplink scheduling authorization (UL Grant, UG) that HARQ-ACK time-frequencies bind window, subframe n The transmission mode configured on descending distribution index (UL DAI), the carrier number of UE configurations and each carrier wave. Wherein：

HARQ-ACK time-frequencies binding window depends on UE and feeds back the HARQ timed-shutoffs that HARQ-ACK is obeyed The corresponding TDD uplink-downlink configurations of system, represent that institute is in need in subframe n feedbacks HARQ-ACK on a carrier wave Descending sub frame, the subframe index of above-mentioned descending sub frame is n-k_i, k_i∈ K, wherein set K dimension M is referred to as Time-frequency binds the size of window.Current LTE standard is fixed for the different corresponding HARQ of TDD uplink-downlink configurations When relation determine set K as shown in table 2, for convenience, below by FDD HARQ timed-shutoffs The corresponding sub-frame set K of time-frequency binding window that system determines is defined as { 4 }, now M=1.

UL DAI represent actually to carry out under descending HARQ transmission in the time-frequency binding window of each carrier wave configurations of UE The maximum of row number of sub frames.For the UE each carrier waves configured, it is necessary to feed back HARQ-ACK's in subframe n Descending sub frame number is Bc=min (Mc, UL DAI), and wherein min represents to take minimum value, Mc represent carrier wave c when Frequency binding window size.If the transmission mode of current carrier is a TB, the carrier wave is corresponding HARQ-ACK bit numbers are Oc=Bc, one HARQ-ACK bit of each subframe correspondence；If working as front bearing The transmission mode of ripple is two TB, then the corresponding HARQ-ACK bit numbers of the carrier wave are Oc=2 × Bc, each Descending sub frame two HARQ-ACK bits of correspondence.

The set K that the difference HARQ of table 2 timing relationships are determined：{k₀,k₁,…k_M-1}

In TDD system, UE needs the HARQ-ACK bit sequences fed back to depend on all loads that UE is configured The corresponding HARQ-ACK bit numbers sum O of ripple_UEIf, O_UENo more than 20, then on each carrier waves of UE HARQ-ACK bits are arranged by carrier index ascending order, just constitute the HARQ-ACK bits that UE needs to feed back Sequence；, whereas if O_UEMore than 20, for all carrier waves that transmission mode is two TB, to every height The corresponding two HARQ-ACK bits of two TB carry out AND operation (i.e. spatial domain binding, Spatial in frame Bundling), a HARQ-ACK bit is obtained, for the carrier wave that transmission mode is TB, each The corresponding HARQ-ACK bits of subframe keep constant, after above-mentioned processing, by each carrier waves of UE HARQ-ACK bits are arranged with carrier index ascending order, just obtain the HARQ-ACK bits that UE needs to feed back Sequence.

From the above description it can be seen that, defined in existing standard (LTE Release-12 and its before) In HARQ-ACK feedback mechanisms, it may be included in the absence of descending in the HAQR-ACK sequences that UE finally feeds back The corresponding HARQ-ACK bits of descending sub frame of HARQ transmission.For example, in FDD system, no matter carrying There is descending HARQ-ACK on ripple whether to transmit, included in the HARQ-ACK bit sequences of UE feedbacks HARQ-ACK bits corresponding with the carrier wave；And in a tdd system, UE determines each carrier wave according to Bc On there is the descending sub frame number of descending HARQ transmission, and Bc value is likely larger than the corresponding time-frequency binding of the carrier wave The descending sub frame number of the descending HARQ transmission of physical presence in window.Because according to existing standard, UE maximum branch The carrier number held is 5, therefore, and the presence of above-mentioned invalid HARQ-ACK bits will not be to the performance band of system Significantly influence.

However, the downlink peak rates in order to further improve UE, the carrier number that increase UE maximums are supported into For the common recognition between each member company of 3GPP.The carrier number upper limit that UE is supported will increase to 32, wherein may wrap Containing the carrier wave in unauthorized frequency range (Unlicenced Band).Due to the increase of the UE descending carrier numbers supported, The absolute number of scheduled descending sub frame will not increase therewith yet, so invalid HARQ-ACK bits problem The negative effect brought also will undoubtedly amplify therewith.In this case, if still continuing to use what is defined at present HARQ-ACK feedback mechanisms, the efficiency of feedback information will be decreased obviously, and UE down peak magnitude is most influenceed at last Speed, runs counter to the original intention of the increase carrier number upper limit.Therefore, in LTE Release-13 versions, introduce New bit, Total DAI and counter DAI (TS 36.212Table 5.3.3.1.2-2).Wherein, TDD In system, Total DAI are indicated since HARQ-ACK time-frequencies bind first subframe of window to current son In frame, all subframes and carrier wave be scheduled PDSCH sum, and counter DAI indicate from First subframe of HARQ-ACK time-frequencies binding window starts to present sub-frame, the institute before all present sub-frames There is a scheduled carrier wave, and the PDSCH that is scheduled from minimum carrier index to the carrier wave of present sub-frame Sum.In FDD system, Total DAI indicate the PDSCH being scheduled on present sub-frame, all carrier waves Sum, and counter DAI indicate present sub-frame, are scheduled from minimum carrier index to the carrier wave PDSCH sum.UE is determined the HARQ-ACK of feedback by Total DAI when feeding back HARQ-ACK Bit number, and by the counter DAI HARQ-ACK for determining to feed back bit arrangement order.

And with the growing tension of frequency spectrum resource, 3GPP begins one's study at unauthorized frequency range (Unlicenced Band) Data are sent on carrier wave.In the versions of LTE Release 13, LTE equipment may be simultaneously operated in mandate frequency range On unauthorized frequency range carrier wave, by way of carrier aggregation or dual link.Unauthorized frequency range carrier wave is with authorizing One significant difference of frequency range carrier wave is that signal of the LTE equipment on unauthorized frequency range carrier wave sends needs and be based on LBT (Listen before talk), i.e. LTE equipment need to monitor the busy-idle condition of unauthorized frequency range carrier wave, when And if only if when unauthorized frequency range carrier wave is idle, LTE equipment just can send signal on this carrier wave.Due to LTE Equipment can not the unauthorized frequency range carrier wave of Accurate Prediction it is when idle, therefore LTE equipment is on unauthorized frequency range carrier wave Transmission be whether with probabilistic, i.e., can not predefine can be transmitted in subframe n.

In the systems of LTE Release 14, uplink control signal can be sent in unauthorized frequency range.Due to hair It is the uplink-downlink configuration that unauthorized frequency range is not fixed based on LBT to send, and the UE in sub-frame of uplink It can not ensure that upward signal can be sent.Therefore, uplink control signal is sent on unauthorized carrier wave, being can not HARQ-ACK feedback is carried out according to the HARQ-ACK timing being semi-statically configured.How in unauthorized frequency The upper effective transmission uplink control signals of Duan Zaibo, are urgent problems to be solved.

The content of the invention

The invention provides a kind of feedback method of hybrid automatic repeat-request response HARQ-ACK information, its feature exists In, including：

The corresponding time-frequency of sub-frame of uplink in the feedback window where expected feedback HARQ-ACK the first sub-frame of uplink Bind in window, receive the physical downlink control channel PDCCH of dispatching downlink HARQ transmission or enhanced physical down control Channel EPDCCH processed, obtains the descending distribution index DL DAI of descending scheduling in downstream grants DL-Assignment, And determine each DL DAI mapping value；

It is determined that feedback HARQ-ACK the second sub-frame of uplink, and determine to feed back HARQ-ACK up-link carrier；

According to the mapping value of the DL DAI, by the HARQ-ACK bit maps of each HARQ feedback unit to feedback In the corresponding bits of bit sequence；

And in second sub-frame of uplink, the HARQ-ACK bits are fed back on the up-link carrier.

It is preferred that the first sub-frame of uplink of the feedback HARQ-ACK is the finger in the physical layer signaling received Show what information was determined, and/or the first sub-frame of uplink of the feedback HARQ-ACK is according to reference carrier and received What the HARQ-ACK feedback times of PDSCH carrier wave were determined.

It is preferred that the starting point of the feedback window where the first sub-frame of uplink of the feedback HARQ-ACK is on described first Row subframe, and the length of the feedback window is configurable.

It is preferred that second sub-frame of uplink is in the feedback window.

It is preferred that time-frequency binding window include needing first sub-frame of uplink feed back HARQ-ACK it is all under Row subframe, and all descending sub frames are according to setting rule compositor.

It is preferred that the mapping value according to corresponding DL DAI, by the HARQ-ACK of each HARQ feedback unit Bit map is to including in the corresponding bits of feedback bits sequence：, determine whether overlapping with second sub-frame of uplink Second sub-frame of uplink of other feedback windows；

If the second sub-frame of uplink without other feedback windows, according to the second sub-frame of uplink pair of the feedback window PDSCH actually scheduled in all descending sub frames in the time-frequency binding window for the first sub-frame of uplink answered, it is determined that HARQ-ACK bits, and the HARQ-ACK bits are sorted according to predefined rule；

If the second sub-frame of uplink of other feedback windows, then according to the second sub-frame of uplink of other feedback windows The maximum number for the PDSCH that can be scheduled in all descending sub frames in the time-frequency binding window of corresponding first sub-frame of uplink Amount, determines first kind HARQ-ACK bits, and according to the second sub-frame of uplink corresponding first in described feedback window PDSCH actually scheduled in all descending sub frames, determines Equations of The Second Kind in the time-frequency binding window of sub-frame of uplink HARQ-ACK bits, and by this two classes HARQ-ACK bit according to setting rule compositor.

It is preferred that the scheduled PDSCH of the reality is according to the DAI total (Total DAI) and/or DAI received Count (Counter DAI) determination；And/or,

The maximum quantity of the PDSCH that can be scheduled is determined according to the carrier number being configured.

It is preferred that the mapping value according to corresponding DL DAI, by the HARQ-ACK of each HARQ feedback unit Bit map is determined whether overlapping with second sub-frame of uplink to including in the corresponding bits of feedback bits sequence Second sub-frame of uplink of other feedback windows；

If the second sub-frame of uplink of other feedback windows, then according to the second sub-frame of uplink of other feedback windows PDSCH actually scheduled in all descending sub frames, determines first in the time-frequency binding window of corresponding first sub-frame of uplink Class HARQ-ACK bits, and according to corresponding first sub-frame of uplink of the second sub-frame of uplink in described feedback window when PDSCH actually scheduled in all descending sub frames, determines Equations of The Second Kind HARQ-ACK bits in frequency binding window, and By this two classes HARQ-ACK bit according to setting rule compositor.

It is preferred that the scheduled PDSCH of the reality according at least to the DAI total (Total DAI) received and/ Or DAI counts (Counter DAI) and determined.

It is preferred that the setting rule compositor includes the elder generation according to corresponding first sub-frame of uplink of this two class HARQ-ACK Order sorts this two classes HARQ-ACK bit afterwards, i.e., the first forward in time sub-frame of uplink is corresponding Before HARQ-ACK bits come, the corresponding HARQ-ACK bits of the first sub-frame of uplink in time rearward come Below.

It is preferred that the Total DAI and/or Counter DAI, are all sub-frame of uplink pair in the feedback window Each time-frequency binding window combined count answered.

It is preferred that the method for the up-link carrier for determining feedback HARQ-ACK includes：

Configured information in the physical layer signaling received determines feedback HARQ-ACK up-link carrier, and/or root Feedback HARQ-ACK up-link carrier is determined according to present channel busy situation, and/or confidence is matched somebody with somebody according to the high level received The up-link carrier that configured information in order really feeds back HARQ-ACK is determined, wherein, only feed back unauthorized frequency range HARQ-ACK up-link carrier is the first up-link carrier, can feed back and authorize frequency range and/or unauthorized frequency range carrier wave HARQ-ACK up-link carrier is the second up-link carrier.

It is preferred that it is described according to present channel busy situation determine feed back HARQ-ACK up-link carrier method also Including：If present channel is busy, the index of the corresponding feedback HARQ-ACK of next subframe up-link carrier is than ought The corresponding feedback HARQ-ACK of preceding subframe up-link carrier index value is big by 1.

It is preferred that HARQ-ACK is fed back in first up-link carrier, according to corresponding DL DAI mapping value, During by the corresponding bits of the HARQ-ACK bit maps of each HARQ feedback unit to feedback bits sequence, according to PDSCH actually scheduled in all descending sub frames in the corresponding time-frequency binding window of first up-link carrier, it is determined that The HARQ-ACK bits；And/or,

HARQ-ACK is fed back in second up-link carrier, and is not fed back in first up-link carrier HARQ-ACK, then by when the less up-link carrier of carrier index is corresponding in the second up-link carrier and the first up-link carrier The maximum quantity for the PDSCH that can be scheduled in all descending sub frames in frequency binding window, determines first kind HARQ-ACK Bit length, and according to the larger up-link carrier of carrier index in the second up-link carrier and the first up-link carrier it is corresponding when PDSCH actually scheduled in all descending sub frames, determines Equations of The Second Kind HARQ-ACK bits in frequency binding window, and First kind HARQ-ACK is arranged in front, behind Equations of The Second Kind HARQ-ACK bits come.

It is preferred that the scheduled PDSCH of the reality according at least to the DAI total (Total DAI) received and/ Or DAI counts (Counter DAI) and determined；And/or,

The maximum quantity of the PDSCH that can be scheduled is determined according at least to the carrier number being configured.

The invention provides a kind of channel condition information (CSI) feedback method, it is characterised in that including：

In sub-frame of uplink of the expected feedback including at least CSI ascending control information, it is determined that feeding back the ascending control information Mandate frequency range the 3rd up-link carrier, and determine to carry the uplink physical channel of the ascending control information；

And the ascending control information for comprising at least CSI is fed back on second up-link carrier.

Preferably, the mandate frequency range that the periodicity CSI of unauthorized frequency range carrier wave is configured in main carrier (Pcell) or base station Sent on carrier wave, and when the ascending control information only includes periodicity CSI, the ascending control information is in Pcell Or sent on the PUCCH of the mandate frequency range carrier wave of base station configuration, and/or when the ascending control information both includes the cycle Property CSI again include HARQ-ACK when, and at least one authorize frequency range carrier wave be scheduled PUSCH send when, UE sends the periodicity CSI on the PUSCH of the mandate frequency range carrier wave of the PUSCH that has been scheduled, and HARQ-ACK is sent on the PUCCH of Pcell or the mandate frequency range carrier wave of base station configuration, and/or when the up control When information processed had not only included periodicity CSI but also included HARQ-ACK, and neither one mandate frequency range carrier wave is scheduled When PUSCH is sent, HARQ-ACK is sent on the PUCCH for the mandate frequency range carrier wave that UE is configured in Pcell or base station With periodicity CSI.

Present invention also provides a kind of feedback device of HARQ-ACK information, including：

Receiving module, for the sub-frame of uplink in feedback HARQ-ACK and/or feedback HARQ-ACK sub-frame of uplink Feedback window in all sub-frame of uplink corresponding time-frequency binding window in, receive dispatching downlink HARQ transmission DL-GRANT, obtains DL DAI and/or Total DAI/ and/or the Counter DAI in DL-GRANT, and determine Each DAI mapping value；

Feedback module, for the mapping value according to corresponding DAI, by the HARQ-ACK of each HARQ feedback unit Bit map is in the corresponding bits of feedback bits sequence.

Brief description of the drawings

Fig. 1 is the frame structure schematic diagram of existing TDD system；

Fig. 2 is the implementation steps flow chart of the feedback method of the preferable HARQ-ACK information of the application one；

Fig. 3 be the application in, according to the HARQ-ACK time relationships of existing TDD-FDD carrier aggregations, Wherein assume that unauthorized frequency range carrier wave follows FDD HARQ-ACK time relationships, it is a kind of preferable The schematic diagram of the feedback method of HARQ-ACK information；

Fig. 4 is the implementation steps flow chart of the feedback method of the another preferable HARQ-ACK information of the application；

Fig. 5 is the implementation steps flow chart of the feedback method of another preferable HARQ-ACK information of the application；

Fig. 6 is the application one preferably according to carrier wave busy-idle condition, dynamic select up-link carrier feedback HARQ-ACK The schematic diagram of information approach；

Fig. 7 is the implementation steps flow chart of the another preferably feedback method of HARQ-ACK information of the application；

Fig. 8 is the schematic diagram of the preferable feedback window of the application one；

Fig. 9 is the schematic diagram of the feedback method of the preferable HARQ-ACK information of the application one；

Figure 10 is the another schematic diagram of the feedback method of the preferable HARQ-ACK information of the application one；

Figure 11 is another schematic diagram of the feedback method of the preferable HARQ-ACK information of the application one；

Figure 12 is another schematic diagram of the feedback method of the preferable HARQ-ACK information of the application one；

Figure 13 is the implementation steps flow chart of the method for reseptance of the preferable HARQ-ACK information of the application one；

Figure 14 is the another implementation steps flow chart of the method for reseptance of the preferable HARQ-ACK information of the application one；

Figure 15 is the composition structural representation of the feedback device of the preferable HARQ-ACK information of the application one；

Figure 16 is another implementation steps flow chart of the feedback method of the preferable HARQ-ACK information of the application one；

Figure 17 is a schematic diagram of the feedback method of the preferable HARQ-ACK information of the application one；

Figure 18 is the implementation steps flow chart of the feedback method of the preferable CSI information of the application one；

Figure 19 is a schematic diagram of the feedback method of the preferable CSI information of the application one；

Figure 20 is another schematic diagram of the feedback method of the preferable CSI information of the application one.

Embodiment

For the objects, technical solutions and advantages of the present invention are more clearly understood, develop simultaneously implementation referring to the drawings Example, is described in further detail to the present invention.

In current HARQ-ACK feedback mechanisms, feeding back ACK/NACK sub-frame of uplink is corresponding with its What the time relationship between descending PDSCH was to determine.In FDD system, if UE is received in subframe n PDSCH, then feed back HARQ-ACK information in subframe n+k on corresponding up-link carrier, and wherein k is one Individual predefined value, such as n=4.The up-link carrier is main up-link carrier (Pcell) or major-minor up-link carrier (pScell).In a tdd system, such as the description of background introduction part, system is semi-statically configured or half Dynamic instruction uplink-downlink configuration (as shown in Table 1) again on the basis of static configuration, then UE can be according to configuration Uplink-downlink configuration uniquely determine each descending sub frame PDSCH HARQ-ACK feedback subframe n+k K value (as shown in Table 2).

But because the uplink-downlink configuration on unauthorized carrier wave is dynamic change, and it is not in LAA systems Existing TDD 7 kinds of uplink-downlink configurations are confined to, to be sent on unlicensed band carrier wave HARQ-ACK, then the subframe n+k k values of descending sub frame n PDSCH HARQ-ACK feedbacks are It can not be configured by existing TDD and table two is determined.To solve this problem, a kind of method is not root Carry out the dynamic value for changing k according to the ascending-descending subframes situation of unauthorized frequency range carrier wave, but according to some mandate Ascending-descending subframes configuration on frequency range carrier wave, to determine k value.Another method is can to pass through physics Layer signaling, dynamically indicates k value.The instruction can be the instruction shown show or hidden. For example, the instruction k value shown by (1) in scheduling PDSCH descending DCI, or (2) with In indicate downstream transmission burst information descending public DCI (common DCI) in display instruction k value or Person indicates ascending-descending subframes configuration information, to determine k value.Embodiments of the invention, are applicable to (1) Or (2).

Another problem in LAA systems is, when base station expects that UE sends the sub-frame of uplink of uplink control signal When can not be used to send upward signal, such as in the subframe, channel is taken by WiFi, then (1) UE Need to attempt to send on other carrier waves in the subframe, or (2) are on same carrier wave, but in other sons Frame is attempted to send, the either combination of both (3).Embodiments of the invention, are applicable to (1) or (2) Or one or more kinds of situations in (3).

In the present invention, the feedback of HARQ-ACK information, can be carried by PUCCH, can also passed through PUSCH is carried, or can only be carried by one of which up channel.

In the present invention, the HARQ-ACK of the descending carrier in same PUCCH groups in general, A certain uplink sub-carrier only in same PUCCH groups is sent, without up in other PUCCH groups Subcarrier is sent, and only meets predefined condition, then may be in the uplink sub-carrier in other PUCCH groups It is upper to send.Do not pass through for example, predefined condition is CCA detections, in another example, predefined condition is to receive Indicate that other uplink sub-carriers are sent.So, can be only comprising descending in this group in the PUCCH groups The HARQ-ACK information of carrier wave.The HARQ-ACK information of the descending carrier in this group can also be both included, Also the HARQ-ACK information of other groups is included.

It is preferred that, in described PUCCH groups, it is not limited to necessarily have a up-link carrier to send PUCCH.For example, in the PUCCH groups that unauthorized frequency range carrier wave is constituted or without PUCCH, And only PUSCH is sent, the PUSCH can carry ascending control information.Send carrying upload control letter The PUSCH of breath carrier wave can be semi-statically configured or agreement is predefined, such as be configured as pScell Up-link carrier or according to it is predefined rule determine, e.g. send PUSCH minimum Scellindex up-link carrier, in another example being scheduled PUSCH minimum Scellindex up load Ripple, or other rules.

It is preferred that, in described PUCCH groups, it is limited to necessarily have a up-link carrier to send PUCCH. The carrier wave of the transmission PUCCH can be semi-statically configured or agreement is predefined, such as be configured as PScell up-link carrier or according to it is predefined rule determine.

For convenience of description, in the present invention, it is typically all general to be referred to as PUCCH groups.Meanwhile, in the present invention Some examples in, will can send PUCCH PUCCH groups be referred to as first kind PUCCH groups, can only The PUCCH groups for sending PUSCH are referred to as Equations of The Second Kind PUCCH groups.The two described PUCCH groups are can With separate or be mutually related.For example, it may be Equations of The Second Kind PUCCH groups and first PUCCH groups have common factor without common factor or Equations of The Second Kind PUCCH groups with first kind PUCCH groups, have Also the situation that Equations of The Second Kind PUCCH groups are the subsets of first kind PUCCH groups is included during common factor.In present invention description In the embodiment of ACK/NACK feedback methods, for convenience of description, it is believed that two different PUCCH groups are that do not have Have overlapping, for example, only only include PUSCH PUCCH groups and by authorizing by what unauthorized frequency range carrier wave was constituted The PUCCH groups comprising PUCCH of frequency range carrier wave composition are not occured simultaneously.But each implementation of the present invention Example is also applied for the situation of common factor.

It is preferred that, described Equations of The Second Kind PUCCH groups can be only bearing part ascending control information, and remaining Ascending control information, by another PUCCH group carry.It is preferred that a kind of mode, another described PUCCH Group can be first kind PUCCH groups.Another way, another described PUCCH group can be also another Equations of The Second Kind PUCCH groups.For example, in the Equations of The Second Kind PUCCH groups that unauthorized frequency range carrier wave is constituted, it is unauthorized The ACK/NACK information of frequency range carrier wave can be carried by the PUSCH in this PUCCH group, but be non-award The periodicity CSI information for weighing frequency range carrier wave can be by the PUSCH or PUCCH in another PUCCH group Carrying, such as by transmittable PUCCH Pcell, either pScell is carried or by another PUCCH group The PUSCH carryings of interior mandate frequency range carrier wave.Corresponding example is provided in embodiments of the invention 8, wherein Carrying periodicity CSI carrier wave and the ACK/NACK of the unauthorized frequency range carrier wave of carrying carrier wave belong to different PUCCH groups.

In the PUCCH groups, DAI counting is only in PUCCH groups.Such as base station is UE 4 carrier waves are configured with, CC1~CC2 is authorizes frequency range carrier wave, and CC3~CC4 is unauthorized frequency range carrier wave, and CC3, CC4 belong to Equations of The Second Kind PUCCH groups.So, the DAI combined counts of CC1, CC2 two carrier waves, The DAI combined counts of CC3, CC4 two carrier waves, but this two groups of DAI are separate counts.It is preferred that, DAI Counting mode, be separate configurations.For example, CC1, CC2 can not configure DAI, UE feedbacks HARQ-ACK Determined according to the carrier number of configuration, i.e. LTE Rel-12 CA modes.And CC3, CC4 can be configured always (Total) / counting (counter) DAI, i.e. LTE Rel-13 CA modes.

Or, in the PUCCH groups, the counting for the DAI that base station is sent, is inline in multiple PUCCH groups Total number.Such as base station is that UE is configured with 4 carrier waves, and CC1~CC2 is mandate frequency range carrier wave, CC3~CC4 For unauthorized frequency range carrier wave, and belong to Equations of The Second Kind PUCCH groups.So, the DAI of CC1~CC4 four carrier waves Combined count.

It is preferred that, authorizing the up-link carrier of the uplink control information feedback of frequency range carrier wave and unauthorized frequency range carrier wave is Different.The HARQ-ACK information of frequency range carrier wave is authorized to be sent on the up-link carrier for authorizing frequency range, it is unauthorized The HARQ-ACK information of frequency range carrier wave is sent on unauthorized frequency range carrier wave, or is meeting predefined condition When, sent on frequency range carrier wave is authorized.The present invention preferably implementation, is to be assumed based on this, below It is not repeated.But the present invention is not only restricted to this hypothesis.

The following description of the present invention, it is assumed that the main body for carrying out HARQ-ACK feedbacks is UE, is received The main body of HARQ-ACK feedbacks is base station.But present invention may also apply to the scene of other main bodys.

In existing LTE system, the PDCCH of PDSCH and semi-static business (SPS) is the need for HARQ-ACK feedbacks.It is simple for description, it is described merely as PDSCH in following examples corresponding HARQ-ACK, but the present invention can be applied to the physical channel that institute HARQ-ACK in need feeds back.No Only include defined in existing LTE system, HARQ-ACK the need for can also being introduced included in new system The physical channel of feedback.

Embodiment one

Present applicant proposes a kind of HARQ-ACK information feedback methods, as shown in Fig. 2 comprising the following steps：

Step 201：UE determines the sub-frame of uplink n+k of the corresponding HARQ-ACK feedbacks of descending sub frame n PDSCH.

Wherein, k value is closed according to the HARQ-ACK times of existing FDD-FDD and TDD-FDD carrier aggregations System determines.FDD-FDD first FDD correspondence reference carriers, second unauthorized frequency range carrier wave of FDD correspondences. TDD-FDD TDD correspondence reference carriers, the unauthorized frequency range carrier wave of FDD correspondences.Also, the unauthorized frequency of FDD correspondences Duan Zaibo means, it is determined that unauthorized carrier wave time relationship when the hypothesis based on FDD.

Preferably, as FDD-FDD, i.e., the mandate frequency range carrier wave with the unauthorized frequency range carrier aggregation is equal For FDD carrier waves, then anti-for any one descending sub frame n, its HARQ-ACK of the unauthorized frequency range carrier wave The sub-frame of uplink n+k of feedback k values are identicals, and identical with the k of the mandate frequency range carrier wave of polymerization, for example, k=4.

Preferably, as TDD-FDD, i.e., with the mandate frequency range carrier wave of the unauthorized frequency range carrier aggregation both There are FDD carrier waves, there is TDD carrier waves or only TDD carrier waves again, then it is true according to the TDD uplink-downlink configurations of reference carrier Fixed HARQ-ACK time relationships (such as table two), and unauthorized frequency range carrier wave the HARQ-ACK based on FDD when Between relation (such as k=4), determine jointly unauthorized frequency range carrier wave a descending sub frame n HARQ-ACK feedback Sub-frame of uplink n+k k values.

It is preferred that, the reference carrier is Pcell or pScell.

Preferably, the reference carrier is mandate frequency range carrier wave.

For example, UE is configured for three carrier waves, CC1, to authorize frequency range carrier wave, is Pcell, and is FDD carrier waves, The frame structure 1 in TS 36.211 is followed, CC2 is unauthorized frequency range carrier wave, is Scell, that is, follows in TS 36.211 Frame structure 3, CC3 be unauthorized frequency range carrier wave, be Scell, that is, follow the frame structure 3 in TS 36.211.For The sub-frame of uplink n+k of any one descending sub frame n on CC2, CC3, its HARQ-ACK feedback k value according to CC1 regular value, i.e. k=4.

In another example, UE is configured for three carrier waves, and CC1, to authorize frequency range carrier wave, is Pcell, and is TDD carrier waves, The frame structure 2 in TS 36.211 is followed, uplink-downlink configuration is the configuration 1, DSUUDDSUUD in table one.So, Uplink-downlink configuration 1 corresponding k value of the time of its HARQ-ACK feedbacks in table two, i.e., for descending sub frame #0, Corresponding HARQ-ACK sub-frame of uplink is #7 (k=7), and the corresponding HARQ-ACK sub-frame of uplink of descending sub frame #1 is The corresponding HARQ-ACK sub-frame of uplink of #7 (k=6), descending sub frame #4 is #8 (k=4), and descending sub frame #5 is corresponding HARQ-ACK sub-frame of uplink is the sub-frame of uplink #2 (k=7) of next frame (frame), and descending sub frame #6 is corresponding HARQ-ACK sub-frame of uplink is the sub-frame of uplink #2 (k=6) of next frame, the corresponding HARQ-ACK of descending sub frame #9 Sub-frame of uplink is the sub-frame of uplink #3 (k=4) of next frame.CC2 is unauthorized frequency range carrier wave, is Scell, that is, follows Frame structure 3 in TS 36.211, CC3 is unauthorized frequency range carrier wave, is Scell, that is, follows the frame knot in TS 36.211 Structure 3.For any one descending sub frame n on CC2/CC3, the k's for the sub-frame of uplink n+k that its HARQ-ACK feeds back Value is according to CC1 regular value, i.e., for descending sub frame #0, corresponding HARQ-ACK sub-frame of uplink is #7 (k=7), the corresponding HARQ-ACK sub-frame of uplink of descending sub frame #1 is #7 (k=6), and descending sub frame #4 is corresponding HARQ-ACK sub-frame of uplink is #8 (k=4), and the corresponding HARQ-ACK sub-frame of uplink of descending sub frame #5 is next The corresponding HARQ-ACK sub-frame of uplink of the sub-frame of uplink #2 (k=7) of frame (frame), descending sub frame #6 is next The corresponding HARQ-ACK sub-frame of uplink of the sub-frame of uplink #2 (k=6) of frame, descending sub frame #9 is the up son of next frame Frame #3 (k=4).

Step 202：UE is in the sub-frame of uplink n+k, on the up-link carrier that base station is indicated, sends ascending control information.

It is preferred that, the ascending control information comprises at least HARQ-ACK information.

It is preferred that, the up-link carrier that base station is indicated is Pcell or the feedback PUCCH of configuration unauthorized frequency range carrier wave.

It is preferred that, the feedback up control that the up-link carrier that base station is indicated determines for Pcell or according to predefined rule The unauthorized frequency range carrier wave of information processed.

It is preferred that, the configured information for the up-link carrier that the base station is indicated is contained in scheduling PDSCH DL In assignement DCI, such as 1 bit.It is preferred that, increased newly in scheduling PDSCH DL assignement DCI Plus bit；It is preferred that, scheduling PDSCH DL assignement DCI in redefine existing bit, for example its In TPC bit, can by wherein at least one bit combination be used for indication carrier wave, than such as whether returning back to Pcell/pScell Or sent in unauthorized frequency range carrier wave.Redefining for the existing bit, can be configured by base station.For example base station is matched somebody with somebody Putting can dynamically indicate to send on which carrier wave, then the three of TPC bit kind bit combination may be used to indicate carrier wave and return A kind of resource used after moving back and retracting, bit combination of TPC bit may be used to indicate no carrier wave and retract；It is preferred that , the configured information is contained in common DCI.

Such as the example in step 201, UE is configured with three carrier waves, and CC1 is to authorize frequency range carrier wave and is Pcell, CC2/CC3 is unauthorized frequency range carrier wave, and CC2 is pScell.Assuming that CC1 ascending control information feeds back only on CC1, CC2/CC3 ascending control information feeds back on CC2.So, the configured information of the base station is 1 bit, for referring to Show the feedback HARQ-ACK information on Pcell (CC1) or pScell (CC2).

It is preferred that, the up-link carrier that base station is indicated is not limited only to Pcell.For example, base station can be semi-statically configured on two Row carrier wave, such as CC2 and CC3, base station dynamically indicate are fed back on which carrier wave by physical layer signaling HARQ-ACK.In another example, base station can be semi-statically configured corresponding up carry that retract of an Equations of The Second Kind PUCCH group Ripple.Base station dynamically indicates it is that HARQ-ACK is fed back on rollback up-link carrier by physical layer signaling, or HARQ-ACK is fed back on corresponding up-link carrier in two class PUCCH groups.Assuming that base station, which is UE, is configured with 4 loads Ripple, carrier wave CC1, CC2 is authorize frequency range carrier wave, and CC1 is Pcell, and carrier wave CC3, CC4 are unauthorized frequency range carrier wave, CC3/CC4 is Equations of The Second Kind PUCCH groups, and CC2 is the rollback up-link carrier of Equations of The Second Kind PUCCH groups.Base station can be dynamic Indicate that UE is to send HARQ-ACK on CC2 or CC3/CC4.

It is preferred that, the HARQ-ACK feedback times that UE is determined according to reference carrier, according to prior art, it is determined that HARQ-ACK feedback bits length and bit arrangement order.Or determined according to the method for embodiment three HARQ-ACK feedback bits length and bit arrangement order.

It is preferred that, the HARQ-ACK feedback times that UE is determined according to reference carrier determine HARQ-ACK feedback ratio During bit length, it is assumed that the DAI that base station is sent is the separate counts in different PUCCH groups.As different PUCCH When the carrier wave of group has overlapping, such as when Equations of The Second Kind PUCCH groups are the subsets of first kind PUCCH groups, Equations of The Second Kind PUCCH All carrier waves in group carry out Total/counter DAI combined counts, and same first kind PUCCH groups it is interior but Carrier wave not in the Equations of The Second Kind PUCCH groups carries out Total/counter DAI combined counts, and this two class DAI is independent Count.

It is preferred that, when UE sends ascending control information on the carrier wave that base station is indicated, according to the power on the carrier wave Control parameter determines uplink transmission power.

It is preferred that, when UE sends ascending control information on the carrier wave that base station is indicated, it is thus necessary to determine that sent out on the carrier wave Send the resource location of ascending control information.For example, UE is configured with three carrier waves, CC1 is to authorize frequency range carrier wave and be Pcell, CC2/CC3 are unauthorized frequency range carrier wave, and CC2/CC3 belongs to Equations of The Second Kind PUCCH groups.Assuming that CC1's is up Control information is fed back only on CC1, if having sent PUSCH on CC2, CC2/CC3 ascending control information exists Fed back on CC2, otherwise CC1/CC2/CC3 ascending control information feeds back on CC1.If the carrier wave that base station is indicated It is CC1, the bit length for the ascending control information that UE feeds back according to needed on CC1, it is determined that on CC1 in feedback Any PUCCH format is used during row control information, and determines the transmission resource of corresponding PUCCH format.For example, If the carrier wave that base station is indicated is the carrier wave in Equations of The Second Kind PUCCH groups, then UE feeds back CC1's on CC1 HARQ-ACK, UE feed back CC2 and CC3 HARQ-ACK on the CC2 for sending PUSCH.On wherein CC1 PUCCH is PUCCH format 1a/1b, and its PUCCH resource is determined by CC1 PDCCH CCE.If base station The carrier wave of instruction is CC1, then UE feeds back CC1, CC2 and CC3 HARQ-ACK on CC1, using PUCCH For PUCCH format 3, its PUCCH resource is indicated by the ARI in CC2/CC3 DL assignment.

In the present embodiment, the benefit that UE feeds back HARQ-ACK on which carrier wave is dynamically indicated by base station is, Base station can decide whether to allow UE to return back to mandate frequency range according to the expense for authorizing the ascending control information on frequency range carrier wave Carrier wave such as Pcell feeds back the HARQ-ACK of unauthorized frequency range carrier wave.In another example, base station can be according to unauthorized frequency range The service conditions or CCA situations of carrier wave, decide whether still to dispatch non-award in the subframe that may feed back HARQ-ACK Weigh frequency range carrier wave and carry out downlink transfer, determine whether that allowing UE to return back to mandate frequency range carrier wave sends.If for example, Base station determines the downlink transfer in the corresponding unauthorized frequency range of HARQ-ACK subframe schedulings, then base station can indicate UE Go to feed back HARQ-ACK in corresponding subframe to Pcell.

In order to be better understood from this scheme, several typical application scenarios are provided.As shown in figure 3, UE1 is configured with three Individual carrier wave, CC1 is to authorize frequency range carrier wave and is Pcell, is TDD carrier waves, and uplink-downlink configuration parameter is 1, CC2/CC3 For unauthorized frequency range carrier wave, CC2 is pScell.Base station sends UE1 on CC1 descending sub frame 0,4,5,6,9 PDSCH, then UE1 CC1 same frame sub-frame of uplink 7,8, and in the sub-frame of uplink 2 of next frame, Feeding back ACK/NACK on 2,3.Base station does not all get channel on CC2 descending sub frame 0~3, leads to since subframe 4 CCA detections are crossed, busy channel sends descending, until subframe 8, and progress CCA detections again, busy channel, Until the subframe 2 of next frame since subframe 9.Wherein subframe 4,5,9 be that UE1 sends PDSCH, and UE is at second The subframe 2,3 of frame sends up.Base station does not all get channel on CC3 descending sub frame 0~3, leads to since subframe 4 CCA detections are crossed, busy channel sends descending, until subframe 6, and progress CCA detections again, busy channel, Until the subframe 2 of next frame since subframe 9.Wherein subframe 4,5,9 be that UE1 sends PDSCH.As can be seen that such as Fruit CC2/CC3 is according to CC1 HARQ-ACK time relationships, in CC2, the PDSCH that CC3 descending sub frame 4 is sent, Need to feed back in subframe 8.But CC2 subframe 8 is descending sub frame, can not send HARQ-ACK, therefore, Base station can indicate that UE1 feeds back CC1, CC2 and CC3 HARQ-ACK in CC1 subframe 8.And for descending son Frame 5, according to CC1 HARQ-ACK time relationships, in CC2, PDSCH that CC3 descending sub frame 5 is sent, it is necessary to Fed back in the subframe 2 of next frame, CC2 this subframe is sub-frame of uplink, therefore, base station can indicate UE1 in CC2 Next frame subframe 2 feed back CC2 and CC3 HARQ-ACK.It is worth noting that, CC2 and CC3 be not solid Fixed uplink-downlink configuration, base station can be according to portfolio, and the busy degree of channel determines the proportioning of up-downgoing.At this In example, CC2 up-downgoings portfolio is big, therefore base station can be less CC2 collocating uplink subframes, and multi-configuration is descending Subframe so that CC2 transmission downlink business as much as possible, and HARQ-ACK feedbacks can dynamically be assigned to Pcell Send up.In another example, base station wishes to ensure that the HARQ-ACK energy of the packet sent on CC3 descending sub frame 4 Feedback, possibly can not ensure that for example channel is accounted for by WiFi in subframe 8 due to sending HARQ-ACK on CC2 in time With UE1 can not be detected by CCA.Therefore, base station can dynamically dispatch UE1 Pcell get on send.

Embodiment two

Present applicant proposes a kind of HARQ-ACK information feedback methods, comprise the following steps：

Step 401：UE determines that descending sub frame n PDSCH is corresponding according to the temporal information of base station dynamic instruction The sub-frame of uplink n+k of HARQ-ACK feedbacks.

Step 402：UE is in the sub-frame of uplink n+k, on the up-link carrier that base station is indicated, sends ascending control information.

Difference from Example 1 is that in step 401, UE determines to send HARQ-ACK sub-frame of uplink, It is not the HARQ-ACK times according to predefined or configuration reference carrier and unauthorized frequency range carrier wave What the HARQ-ACK times determined jointly, but the physical layer dynamic signaling that is sent according to base station is determined.

It is preferred that, the physical layer signaling can be DL assignement DL DCI either common DCI.

It is preferred that, the physical layer signaling can be the TPC bit in DL assignement DL DCI, for referring to Show feedback HARQ-ACK sub-frame of uplink.For example, in Equations of The Second Kind PUCCH groups, without PUCCH, HARQ-ACK information is carried by PUSCH.Therefore, work(of the TPC bit in DL DCI without the need for PUCCH Rate is controlled, without the resource (ARI) for indicating PUCCH.TPC bit can serve to indicate that feedback HARQ-ACK temporal information.Similarly, TPC bit can be used for indicating for example aperiodic SRS resource information.

It is preferred that, base station indicates that the method for up-link carrier can be determined according to other embodiments of the invention or prior art.

Embodiment three

Present applicant proposes a kind of HARQ-ACK information feedback methods, as shown in figure 5, comprising the following steps：

Step 501：UE determines the sub-frame of uplink n+k of the corresponding HARQ-ACK feedbacks of descending sub frame n PDSCH.

It is preferred that, UE can be according to the side of the method for the step 201 in embodiment 1, or the step 401 in embodiment 2 Method, determines the sub-frame of uplink n+k.

Step 502：UE determines to send the ascending control information including at least HAQR-ACK information in sub-frame of uplink n+k Uplink carrier information.

It is preferred that, the uplink carrier information, which represents to send on which up-link carrier, comprises at least HAQR-ACK letters The ascending control information of breath.

It is preferred that, the up-link carrier comprises at least the first up-link carrier and the second up-link carrier.

It is preferred that, the first up-link carrier is unauthorized frequency range carrier wave.

It is preferred that, during the first up-link carrier is PUCCH group, it is configured to transmittable PUCCH up-link carrier.

It is preferred that, the first up-link carrier be Equations of The Second Kind PUCCH groups in, according to it is predefined rule determine can be used for send out Send the up-link carrier of the PUSCH comprising UCI.

It is preferred that, the second up-link carrier is mandate frequency range carrier wave.

It is preferred that, the second up-link carrier is Pcell.

It is preferred that, the second up-link carrier is pScell and is to authorize frequency range carrier wave.

It is preferred that, the second up-link carrier can be predefined, and for example standard is defined as Pcell.

It is preferred that, during the second up-link carrier is PUCCH group, it is configured to transmittable PUCCH up-link carrier.

It is preferred that, the second up-link carrier be first kind PUCCH groups in, available for send UCI up-link carrier.

It is preferred that, the second up-link carrier can base station be semi-statically configured.For example, base station can be each Equations of The Second Kind PUCCH assembles the up-link carrier for putting a mandate frequency range.PUCCH can be transmitted in up-link carrier in the mandate frequency range, And PUCCH includes the HARQ-ACK information of the carrier wave in corresponding Equations of The Second Kind PUCCH groups.It is preferred that, institute Sent on the Pcell/pScell for stating first kind PUCCH groups of the descending HARQ-ACK information of mandate frequency range where it.

It is preferred that, UE can carry out carrier monitoring before the sub-frame of uplink n+k on the first up-link carrier (CCA), if CCA passes through, it is determined that send HARQ-ACK on the first up-link carrier.Otherwise, second HARQ-ACK is sent on carrier wave.Note, description here does not consider that base station have sent UL grant, but UE is not detected To UL grant situation.But, in the event of UE missing inspection UL grant situation, natural UE can not just send phase The PUSCH answered.In this case, if sent without corresponding PUSCH, UE is sent on a second carrier HARQ-ACK。

It is preferred that, what UE can be sent according to base station is used for the letter that instruction sends the up-link carrier of the ascending control information Breath, judgement is to send HARQ-ACK on the first or second up-link carrier.The configured information can be according to implementation The method transmission of example 1 or 2.

It is preferred that, UE can sentence according to the total bit number of the ascending control information that may be fed back on the second up-link carrier Disconnected is to send HARQ-ACK on the first or second up-link carrier.For example, it is assumed that the second up-link carrier is corresponding The corresponding HARQ-ACK of the descending carrier of PUCCH groups total bit number is PUCCH format (format) X, And the HARQ-ACK and the corresponding PUCCH groups of the second up-link carrier that should be fed back originally on the first up-link carrier Descending carrier HARQ-ACK the corresponding PUCCH format of bit number sum be PUCCH format Y.Such as Fruit format X and format Y are same format, then when UE can not feed back HARQ-ACK on first carrier, It can return back on the second carrier wave and feed back HARQ-ACK.If PUCCH format X and format Y are different Format, then UE can only feed back HARQ-ACK on first carrier, or abandon the HARQ-ACK corresponding to feedback. In another example, PUCCH format X and format Y are identical format, but base station, which is PUCCH format X, matches somebody with somebody The PRB numbers put, such as be 4 PRB, is not enough to what carrying should feed back on the first up-link carrier originally The HARQ-ACK of HARQ-ACK and the descending carrier of the corresponding PUCCH groups of the second up-link carrier bit number it Be such as 8 PRB.So UE can only feed back HARQ-ACK on first carrier, or to abandon feedback institute right The HARQ-ACK answered.

It is preferred that, UE determines the up-link carrier for sending ascending control information, also further determines the up load The resource of ascending control information is sent on ripple.The resource can be determined according to the one or more in following several ways：

Mode one：When UE sends HARQ-ACK on the second up-link carrier, PUCCH resource can be on first The DL assigmeemnt of descending carrier TPC indicates (ARI) in Equations of The Second Kind PUCCH groups where row carrier wave.

For example, when the Pcell descending carriers in the first kind PUCCH groups where base station only scheduled the second up-link carrier, TPC instructions in the DL assigmeemnt of the scheduling Pcell descending carriers only indicate power control information, and not PUCCH resource information is indicated, i.e., is not ARI.So, when UE sends first kind PUCCH on the second up-link carrier It is descending in Equations of The Second Kind PUCCH groups where the HARQ-ACK and the first up-link carrier of Pcell descending carriers in group During the HARQ-ACK of carrier wave, PUCCH used resource is as the Equations of The Second Kind PUCCH groups where the first up-link carrier The DL assigmeemnt of middle descending carrier TPC indicates ARI.

In another example, the DL assigmeemnt's of the descending carrier in first kind PUCCH groups where the second up-link carrier When TPC indicates only to feed back the HARQ-ACK of the descending carrier in the first kind PUCCH groups where the second up-link carrier PUCCH resource, and the DL of the descending carrier in Equations of The Second Kind PUCCH groups where the first up-link carrier Assigmeemnt TPC indicates to feed back the first kind PUCCH groups where the second up-link carrier on the second up-link carrier In descending carrier HARQ-ACK and the first up-link carrier where Equations of The Second Kind PUCCH groups in descending carrier PUCCH resource during HARQ-ACK.

Mode two：When UE sends HARQ-ACK on the second up-link carrier, PUCCH resource can be on second The DL assigmeemnt of descending carrier TPC indicates (ARI) in first kind PUCCH groups where row carrier wave.

For example, the DL assigmeemnt of descending carrier in first kind PUCCH groups where the second up-link carrier TPC indicates, can both indicate only to feed back descending carrier in the first kind PUCCH groups where the second up-link carrier PUCCH resource during HARQ-ACK, can be indicated in the first kind PUCCH groups where the second up-link carrier again Descending carrier in the HARQ-ACK of descending carrier and Equations of The Second Kind PUCCH groups where the first up-link carrier PUCCH resource during HARQ-ACK.The DL of descending carrier in Equations of The Second Kind PUCCH groups where first up-link carrier Assigmeemnt TPC indicates to may be used to indicate may be used to indicate of being mentioned in other information, such as other embodiment The information of HARQ-ACK feedback times, either for the information of indication carrier wave or for indicating aperiodic SRS's Information etc..

Mode three：When UE sends HARQ-ACK on the second up-link carrier, PUCCH resource can be on first The DL assigmeemnt of descending carrier TPC is indicated in Equations of The Second Kind PUCCH groups where row carrier wave and second is up The DL assigmeemnt of descending carrier TPC indicates (ARI) in first kind PUCCH groups where carrier wave.Wherein, The ARI information that both TPC are indicated is identical.

It is preferred that, when UE sends HARQ-ACK on the second up-link carrier, according to the upload control that may be sent The bit length of information, determines PUCCH format, and according to where PUCCH format and the first up-link carrier In Equations of The Second Kind PUCCH groups where the DL assigmeemnt of descending carrier TPC and/or the second up-link carrier first The DL assigmeemnt of descending carrier TPC is indicated in class PUCCH groups.

It is preferred that, when UE sends HARQ-ACK on the second up-link carrier, can according to the method in embodiment one, Or determined to send the resource of ascending control information on the second up-link carrier according to prior art.

Step 503：According to the up-link carrier for sending the ascending control information including at least HAQR-ACK information, it is determined that The HARQ-ACK information bits of transmission, and send HARQ-ACK information bits in the up-link carrier.

Further, if sending HARQ-ACK information, transmitted HARQ-ACK on the first up-link carrier The corresponding HARQ-ACK letters of PDSCH of the information only comprising the descending carrier in PUCCH groups where the first up-link carrier Breath.If sending HARQ-ACK information on the second up-link carrier.Transmitted HARQ-ACK information is both comprising the The corresponding HARQ-ACK information of PDSCH of descending carrier in PUCCH groups where one up-link carrier, also comprising the The corresponding HARQ-ACK information of PDSCH of descending carrier where two up-link carriers in PUCCH groups.By that analogy.

It is preferred that, UE according to predefined order, to the descending carrier in PUCCH groups where the first up-link carrier and The PDSCH of descending carrier where second up-link carrier in PUCCH groups HARQ-ACK bits are ranked up.Example Such as, it can be sorted according to the size of the first up-link carrier and the carrier index number of the second up-link carrier, such as Scellindex Before the HARQ-ACK of small up-link carrier comes, before the HARQ-ACK of up-link carrier big Scellindex comes Face.In another example, PUCCH groups include Pcell where the second up-link carrier, then the descending load in the PUCCH groups Before the corresponding HARQ-ACK bits of ripple come, the descending carrier in PUCCH groups where the first up-link carrier Behind PDSCH HARQ-ACK bits come.UE, can basis it is determined that during HARQ-ACI feedback bits length Mode one or mode two are carried out.

Mode one, UE is when it is determined that come the HARQ-ACK feedback bits of carrier wave set above, according to possible feedback Maximum number bits determine.That is, it is identical with the mechanism in the systems of LTE Release 12, according to the carrier number of configuration and / or UL DAI/DL DAI in the information that indicates, determine bit number, rather than according to the PDSCH's of the actual transmission in base station Quantity (such as Total DAI) determines bit number, that is to say, that base station configuration comes carrier wave set above The determination mode of HARQ-ACK bit number is to be determined according to the carrier number of configuration, i.e. Rel-12 CA's HARQ-ACK sending methods.But the HARQ-ACK bits of last carrier wave set for coming, if base station is configured to The mode of HARQ-ACK bits is determined according to the actual PDSCH sent quantity, then UE is according to the actual hair in base station The PDSCH sent quantity (such as Total DAI) determines bit number.For example, PUCCH where the second up-link carrier The HARQ-ACK bits of group come foremost, it is assumed that be FDD system, and the PUCCH groups include 2 carrier waves, often The corresponding HARQ-ACK bit numbers of individual carrier wave are 2.So, no matter the several carrier waves of base station scheduling, UE is according to 4 Bit feeds back.UE detects PDSCH, and detects correct, feeding back ACK, if detection is wrong or does not examine Measure, then feed back NACK.Such benefit is, if UE missing inspection PDSCH in the second uplink carrier group, but UE does not have found the missing inspection behavior of oneself, does not interfere with the HARQ-ACK bits that UE arranges the first uplink carrier group yet, So as to not avoid the length and the ambiguity of bit arrangement of the HARQ-ACK bits that base station and UE feed back to UE yet.

It is preferred that, the carrier number of the configuration refers to the carrier number of the configuration in a PUCCH group.

For example shown in Fig. 6, UE1 is configured with 5 carrier waves, and CC1 is to authorize frequency range carrier wave and is Pcell, and CC2 is mandate Frequency range carrier wave, belongs to same PUCCH groups with CC1, and the two carrier waves are on FDD carrier waves, each carrier wave Sending mode (TM) is the TM of transmittable 2 transmission blocks.CC1 is the second up-link carrier.CC3~CC5 awards to be non- Frequency range carrier wave is weighed, the sending mode (TM) belonged in same PUCCH groups, and each carrier wave is transmittable 2 The TM of individual transmission block.CC3 is pScell, and CC3 is the first up-link carrier.Assuming that base station have sent total DAI, total DAI is the independent numbering in each PUCCH groups.Total DAI=1 are have sent in DL DCI on CC1, are represented A PDSCH is only have sent in the 2nd PUCCH groups, Total is have sent in the DL DCI on CC3, CC4 DAI=2, represents to have sent two PDSCH in the first PUCCH groups.Assuming that UE1 is received in subframe 0 PDSCH on CC1, CC3, CC4, UE1 determine that in subframe 4 HARQ-ACK information need to be fed back.So, UE1 exists Before subframe 4, CCA detections are first carried out on CC3, if CCA passes through, CC3 is fed back on CC3, CC4's HARQ-ACK, the bit number of feedback is 4.And CC1 HARQ-ACK, the bit number of feedback are fed back on CC1 For 2.But, if CC3 CCA detections do not pass through, CC1, CC3, CC4 PDSCH are fed back on CC1.This When, UE1, need to be CC1, before CC2 HARQ-ACK bits come, then when arranging HARQ-ACK bits Arrange CC3~CC5 HARQ-ACK bits.That is, UE feeds back 4+4 bits, wherein preceding 4 bit is CC1, CC2's HARQ-ACK bits, rear 4 bit is CC3, CC4 bit.Although the total DAI that UE1 that correctly received CC1 can To determine an only PDSCH in the 2nd PUCCH groups, but UE1 still will according to CC1+CC2 bit number Fed back, wherein CC1 ACK/NACK produces ACK/NACK, CC2 correspondences according to CRC check result NACK。

Mode two：If UE determines to send up comprising HARQ-ACK on the second up-link carrier in step 502 Control information, then it is determined that all carrier wave sets HARQ-ACK feedback bits when, according to may feedback maximal bit Count to determine.That is, it is identical with the mechanism in the systems of LTE Release 12, according to the carrier number of configuration and/or UL DAI/DL The information indicated in DAI, determines bit number, rather than the PDSCH according to the actual transmission in base station quantity (such as Total DAI) bit number is determined.But if UE determines to feed back on the first up-link carrier, according to the actual transmission in base station PDSCH quantity (such as Total DAI) determines bit number.

It is preferred that, UE assumes that Total DAI and/or the counter DAI that base station is sent are interior in each PUCCH group respectively Separate counts.

Above-mentioned example gives the example of bit number based on FDD-FDD, and embodiments of the invention are also applied for TDD-FDD situation.Thinking is the same, it is only necessary to correspond to corresponding FDD operation in TDD operations.For example, It is real according to base station according to existing TDD if sending HARQ-ACK on the first up-link carrier in step 503 The quantity (such as Total DAI) for the PDSCH that border is sent determines bit number, and if sent out on the second up-link carrier HARQ-ACK is sent, then the HARQ-ACK of the 2nd PUCCH carrier wave sets feeds back according to existing TDD according to possible Maximum number bits determine.

Another implementation of the present embodiment, if the corresponding HARQ-ACK of the first up-link carrier of feedback up load Ripple can be the first up-link carrier, or the second up-link carrier, base station for example as described above indicate or UE judges according to CCA testing results, then UE HARQ-ACK feedback systems should be configured as can according to base station The maximum quantity for the PDSCH that can be sent is determined, i.e., according to the HARQ-ACK of LTE Release-12 carrier aggregation Feedback method.So, no matter UE feeds back HARQ-ACK on the first or second carrier wave, may according to base station The PDSCH of transmission maximum quantity determines HARQ-ACK bits.

Example IV

Present applicant proposes a kind of HARQ-ACK information feedback methods, as shown in fig. 7, comprises following steps：

Step 701：UE determines the first sub-frame of uplink of the corresponding HARQ-ACK feedbacks of descending sub frame n PDSCH n+k.And uplink control information feedback window of the determination using the first sub-frame of uplink as starting point.

The uplink control information feedback window is what base station was semi-statically configured.Using the first sub-frame of uplink as starting point, length is N time dimension window.It is preferred that, the length N of feedback window only can once attempt to send upload control for 1, i.e. UE The chance of information.It is preferred that, the length N of feedback window can be the positive integer more than 1.The setting of the length of feedback window, It is contemplated that ascending control information time delay and ascending control information sending probability compromise.

It is preferred that, first idle sub-frame of uplink that UE can be in feedback window sends ascending control information.For not The first same sub-frame of uplink, its length is identical, as shown in Fig. 8 (a).Wherein when subframe 4 is the first subframe, Huo Zhezi When frame 5 is the first subframe, its feedback window length is 4.So, UE can send in subframe 4~7 and comprise at least son The corresponding ascending control information of frame 4, UE can send in subframe 5~8 and comprise at least the corresponding upload control of subframe 5 letter Breath.Significantly, since the up-downgoing burst-length of unauthorized frequency range carrier wave is variable, accordingly, it is possible to go out In present feedback window length, without transmissible sub-frame of uplink, for example, descending sub frame is had been changed to.UE can be with Indicated by the signaling of display, such as base station at least indicates the end of uplink burst by common DCI, or By indicating the other information of up-downgoing burst so that UE may determine that the subframe in feedback window is not useable for uplink. Another way, UE can be indicated not against the signaling of display, and by blind Detecting, for example, be detected by CCA, be sentenced Whether the subframe in disconnected feedback window can be used for uplink.So, in fact it could happen that although the configuration to each sub-frame of uplink Feedback window length it is identical, but can actually be used for the number of sub-frames of uplink be it is different, such as shown in Fig. 8 (b). Wherein when subframe 4 is the first subframe, its feedback window length is that 4, UE can be sent including at least son in subframe 4~7 The corresponding ascending control information of frame 4.When subframe 5 is the first subframe, although the feedback window length of configuration is 4, but due to son Frame 8 is descending sub frame, so it is subframe 5~7 that UE is really available.It is not difficult to find out, the feedback window of definition determines UE Feed back HARQ-ACK maximum delay.

The uplink control information feedback window is base station dynamic configuration.Starting point is still the first sub-frame of uplink, but feedback Window length can be by base station dynamic instruction, such as by the DL assignement that dispatch PDSCH or by common DCI, or pass through other special DCI.

Step 702：UE is in the uplink control information feedback window, it is determined that transmittable comprise at least HAQR-ACK letters The subframe position of the ascending control information of breath.

It is preferred that, the subframe position of the ascending control information must be in feedback window.N+k is determined in step 701 The first sub-frame of uplink be feedback window starting point, be followed by the second sub-frame of uplink, the 3rd sub-frame of uplink, until feedback window End.

It is preferred that, UE can carry out carrier monitoring (CCA) before first sub-frame of uplink, if CCA passes through, Then determine to send HARQ-ACK in the first sub-frame of uplink.Otherwise, carrier monitoring is carried out before the first sub-frame of uplink (CCA), if CCA passes through, it is determined that send HARQ-ACK in the first sub-frame of uplink.The like, directly To last sub-frame of uplink in feedback window.If UE is not still detected in last sub-frame of uplink by CCA, Then UE abandons sending the ascending control information, or sends the ascending control information to trial on another carrier wave. The present invention is not limited.

It is not difficult to find out, if UE is not in X₁Individual sub-frame of uplink is detected by CCA, and other subframes in feedback window (X₂It is individual) detected by CCA, and the X₂Individual subframe also has corresponding ascending control information to need transmission, So in the X₂The ascending control information of oneself should be sent in individual subframe, X is also sent₁Individual sub-frame of uplink Ascending control information.Step 703 is shown in concrete operations.

Step 703：The subframe position for the ascending control information that UE comprises at least HAQR-ACK information according to can be transmitted, It is determined that the HARQ-ACK information bits sent.And sent in the subframe and comprise at least HARQ-ACK information bits Ascending control information.

Further, if sending HARQ-ACK information, transmitted HARQ-ACK in the first sub-frame of uplink Information only includes the corresponding HARQ-ACK information of PDSCH of the corresponding descending carrier of the first sub-frame of uplink.If HARQ-ACK information is sent in two sub-frame of uplink, transmitted HARQ-ACK information both includes the first sub-frame of uplink pair The corresponding HARQ-ACK information of PDSCH for the descending carrier answered, also comprising the corresponding descending carrier of the second sub-frame of uplink The corresponding HARQ-ACK information of PDSCH.By that analogy.

It is preferred that, the PDSCH of descending carrier corresponding for X sub-frame of uplink can be corresponding with X sub-frame of uplink Time-frequency binding window in all descending sub frames, and all descending carriers PDSCH.The time-frequency binds window length A descending sub frame can be only corresponded to for the sub-frame of uplink of 1, i.e., one.The time-frequency binding window length can be according to existing system The TDD uplink-downlink configurations (table one, table two) of system are determined.Time-frequency binding window length can also be according to newly defining Uplink-downlink configuration is determined.When the time-frequency binding window length can also be fed back according to the HARQ-ACK of base station dynamic instruction Between determine, for example expect to exist by the corresponding HARQ-ACK of n-th of descending sub frame indicating in DL assignement N-th+k sub-frame of uplink feedbacks, to determine that the n-th+k sub-frame of uplink have corresponded to how many descending sub frames.

It is preferred that, UE according to predefined order, the PDSCH's of descending carrier corresponding to the first sub-frame of uplink HARQ-ACK is ranked up, and/or the PDSCH to the corresponding descending carrier of the first sub-frame of uplink HARQ-ACK The PDSCH of descending carrier corresponding with the second sub-frame of uplink HARQ-ACK is ranked up, by that analogy, and/or The PDSCH of descending carrier corresponding to the first sub-frame of uplink HARQ-ACK and until in last of feedback window The PDSCH of the corresponding descending carrier of row subframe HARQ-ACK is ranked up.

It is preferred that, the PDSCH of the corresponding descending carrier of different sub-frame of uplink HARQ-ACK bits are carried out in UE During sequence, according to the sequencing of sub-frame of uplink, the PDSCH of its corresponding descending carrier HARQ-ACK is arranged Bit.Such as, to the PDSCH of the corresponding descending carrier of the first sub-frame of uplink HARQ-ACK and the second sub-frame of uplink When the PDSCH of corresponding descending carrier HARQ-ACK is ranked up, the corresponding descending carrier of the first sub-frame of uplink PDSCH HARQ-ACK come before, then the PDSCH's of the corresponding descending carrier of the second sub-frame of uplink Behind HARQ-ACK comes.UE1 arrange HARQ-ACK bits when, can according to mode one or mode two come Carry out.

Mode one：It is preferred that, UE assumes that Total DAI and/or the counter DAI that base station is sent are respectively in each X Separate counts in descending sub frame in the corresponding time-frequency binding window of individual sub-frame of uplink.For example shown in Fig. 9, the first up son Corresponding time-frequency binding window time dimension length is 1 to frame 4,5,6,7 respectively, and corresponding descending sub frame is 0,1 respectively, 2,3.So, Total DAI and the counter DAI in the DL assignement in these descending sub frames are point The independent numbering not in these subframes.For convenience of description, Total DAI are only gived in figure, it is believed that counter DAI is similarly.

UE is when sub-frame of uplink X feeds back HARQ-ACK bits, it is assumed that HARQ-ACK bits contain X₁, the X₂... X_nThe corresponding HARQ-ACK bits of individual sub-frame of uplink, then X_nIndividual sub-frame of uplink is corresponding HARQ-ACK bits can determine bit number according to the actual PDSCH sent quantity (such as Total DAI), And X₁, X_2…X_n-1The corresponding HARQ-ACK bits of individual sub-frame of uplink, it should according to may feedback high specific Special number is determined.That is, it is identical with the mechanism in the systems of LTE Release 12, according to the carrier number and/or UL of configuration The information indicated in DAI/DL DAI, determines bit number, rather than the PDSCH according to the actual transmission in base station quantity (such as Total DAI) determines bit number.

It is preferred that, after UE1 successful transmission of the HARQ-ACK bits of correspondence descending sub frame, in up son below In frame, then not comprising having have sent HARQ-ACK bits.

As shown in Figure 10, it is assumed that downlink burst is 0~3 comprising subframe, uplink burst is 4~7 comprising subframe, followed by Another downlink burst includes subframe 8~10.UE1 is configured for 4 CC, and CC0, to authorize frequency range carrier wave, is Pcell, CC1~CC3 is unauthorized frequency range carrier wave, in same PUCCH groups, and wherein CC1 is pScell, feeds back CC1~CC3 HARQ-ACK, but with CC0 not in a PUCCH group.It is simple for description, CC1~CC3 is only described, is not described CC0, CC0 are fed back according to prior art.Assuming that CC1~CC3 is the TM that 2 transmission blocks at most can be transmitted. Base station have sent PDSCH on CC1~CC3 in descending sub frame 0 for UE1, in descending sub frame 1, be UE1 on CC1 PDSCH is have sent, in descending sub frame 3, PDSCH is have sent for UE1 on CC1 and CC3.So, base station is in son The Total DAI=3 that frame 0 is sent, the Total DAI=1 sent in subframe 1, the Total DAI=2 sent in subframe 3.It is descending Corresponding first sub-frame of uplink of subframe 0 is subframe 4, and feedback window is subframe 4~7, the up son of descending sub frame 1 corresponding first Frame is subframe 5, and feedback window is subframe 5~8, and corresponding first sub-frame of uplink of descending sub frame 3 is subframe 7, and feedback window is son Frame 7~10.But it is due to the descending sub frame that subframe 8~10 is new downlink burst, real effective feedback window is respectively son Frame 4~7, subframe 5~7 and subframe 7.So, described in detail below by taking several situations as an example.Note, other situations can By that analogy.

If-UE1 carries out CCA detections before sub-frame of uplink 4, pass through, then, send descending in sub-frame of uplink 4 The HARQ-ACK of subframe 0, is 6 bits.

If-UE1 carries out CCA detections before sub-frame of uplink 4, do not pass through, but pass through in sub-frame of uplink 5, then The HARQ-ACK of descending sub frame 0 is sent in sub-frame of uplink 5, is 6 bits, and send descending sub frame 1 HARQ-ACK, is 2 bits, altogether 8 bit.

Do not pass through if-UE1 carries out CCA detections before sub-frame of uplink 4,5, but pass through in sub-frame of uplink 6, The HARQ-ACK of descending sub frame 0 is so sent in sub-frame of uplink 6, is 6 bits, and send descending sub frame 1 HARQ-ACK, is 2 bits, altogether 8 bit.

Do not pass through if-UE1 carries out CCA detections before sub-frame of uplink 4,5, but pass through in sub-frame of uplink 6, And carry out CCA detections before sub-frame of uplink 7 to pass through, then send descending sub frame 0 in sub-frame of uplink 6 HARQ-ACK, is 6 bits, and sends the HARQ-ACK of descending sub frame 1, is 2 bits, altogether 8 Bit, and descending sub frame 2 and the HARQ-ACK of subframe 3 are sent in sub-frame of uplink 7, it is 6+4=10 bits. Note, although UE1 is in descending sub frame 2 and is not detected by DL DCI, but UE1 need to be produced according to 3 carrier waves Raw 6 bit HARQ-ACK, then rearrange 4 bit HARQ-ACK of subframe 3.The purpose so done It is, it is to avoid base station actually have sent PDSCH in subframe 2, but UE1 is not detected by, so as to cause subframe The phenomenon of 3 HARQ-ACK bits dislocation.And it is of note that because UE1 is in up son Frame 6 have sent descending sub frame 0 and the HARQ-ACK bits of subframe 1, and UE1 is sent in sub-frame of uplink 7 During HARQ-ACK bits, descending sub frame 0 and the HARQ-ACK bits of subframe 1 are not just retransmited.

If-UE1 carries out CCA before sub-frame of uplink 6, detection is to pass through, but is passed through in sub-frame of uplink 7, then The HARQ-ACK of descending sub frame 0 is sent in sub-frame of uplink 7, is 6 bits, and send descending sub frame 1 HARQ-ACK, is 6 bits, and sends the HARQ-ACK of descending sub frame 2, is 6 bits, also has The HARQ-ACK of descending sub frame 3 is sent, is 4 bits, altogether 22 bit.

Mode two：It is preferred that, UE assumes that Total DAI and/or the counter DAI that base station is sent are in upload control letter Cease combined count in the descending sub frame in the corresponding all time-frequency binding windows of all sub-frame of uplink in feedback window.

Or, it can be understood as, a kind of new time-frequency binding window is defined, its starting point is up for first in feedback window Time-frequency corresponding to subframe binds first subframe of window, and terminal is corresponding to last interior sub-frame of uplink of feedback window Time-frequency binds last subframe of window.

UE is when receiving Total DAI and/or counter DAI, it is assumed that Total DAI and/or counter DAI are indicated Since first descending sub frame of first time-frequency binding window that base station is determined, Total DAI are received to UE And/or counter DAI subframe terminates, base station binds all PDSCH sent in window joint meter in these time-frequencies Number.It is preferred that, UE can consider Total DAI and/or counter DAI counting, be within a certain period of time, for example In one UL burst, first Total DAI and/or the counter DAI received descending sub frame starts, and is received to UE Total DAI and/or counter DAI current downlink subframe, combined count in all time-frequency binding windows. For example shown in Figure 11, corresponding time-frequency binding window length is 1 to the first sub-frame of uplink 4,5,6,7 respectively, it is corresponding under Row subframe is 0,1,2,3 respectively.So, the Total DAI in the DL assignement in these descending sub frames It is to combine numbering in this subframe 0~3 with counter DAI.Base station sends total DAI=3 in subframe 0, in subframe 1 Middle transmission total DAI=4, send total DAI=6 in subframe 3.For convenience of description, Total DAI are only gived in figure, It is believed that counter DAI are similarly.

It is preferred that, for feeding back HARQ-ACK in any one sub-frame of uplink, UE is all in accordance with the actual transmission in base station PDSCH number determines HARQ-ACK bit lengths, and arranges HARQ-ACK bits.For example, according to Total DAI and counter DAI is determined.

It is preferred that, UE is when feeding back HARQ-ACK, and it is corresponding that first subframe in feedback window feeds back its HARQ-ACK bits, if feeding back HARQ-ACK bits not successfully in first subframe, it tries in second son Frame feeds back HARQ-ACK bits, and now HARQ-ACK bits are that first subframe feeds back HARQ-ACK not successfully The sum of bit HARQ-ACK bits corresponding with the second subframe.When UE successfully feeds back in first subframe During HARQ-ACK bits, UE has two kinds of implementations in the second subframe feedback HARQ-ACK, and a kind of mode is UE When the second subframe feeds back HARQ-ACK bits, first subframe of feedback feeds back HARQ-ACK bits and the not successfully The corresponding HARQ-ACK bits of two subframes, another to be achieved in that UE only feeds back the second subframe corresponding HARQ-ACK bits.The benefit of first way is can effectively to reduce the expense of HARQ-ACK feedbacks, second The benefit of mode is that base station can be avoided to influence the second subframe when not judging the feedback of the first subframe correctly HARQ-ACK reception.

A kind of implementation of the present embodiment, UE be it is known that base station send Total DAI and counter DAI be from What which descending sub frame started, for example, UE can be determined by obtaining the configured information of up-downgoing burst.So Accordingly, it is desirable to which base station is sending the instruction letter that TotalDAI and counter DAI are also required to happen suddenly according to the up-downgoing Cease to determine first subframe of DAI countings.

Another implementation of the present embodiment, UE can not know Total DAI and the counter DAI that base station is sent Since which descending sub frame, it is only necessary to according to Total DAI and the counter DAI received to HARQ-ACK Bit is ranked up..It is so corresponding, can not limit base station send TotalDAI and counter DAI must be according to Some rule come determine DAI count first subframe, give over to base station realization, base station can also be limited according to predetermined Rule come determine DAI count first subframe.

As shown in figure 11, it is assumed that downlink burst is 0~3 comprising subframe, uplink burst is 4~7 comprising subframe, followed by Another downlink burst includes subframe 8~10.UE1 is configured for 4 CC, and CC0, to authorize frequency range carrier wave, is Pcell, CC1~CC3 is unauthorized frequency range carrier wave, in same PUCCH groups, and wherein CC1 is pScell, feeds back CC1~CC3 HARQ-ACK, but with CC0 not in a PUCCH group.It is simple for description, CC1~CC3 is only described, is not described CC0, CC0 are fed back according to prior art.Assuming that CC1~CC3 is the TM that 2 transmission blocks at most can be transmitted. Base station have sent PDSCH on CC1~CC3 in descending sub frame 0 for UE1, in descending sub frame 1, be UE1 on CC1 PDSCH is have sent, in descending sub frame 3, PDSCH is have sent for UE1 on CC1 and CC3.So, base station is in son The Total DAI=3 that frame 0 is sent, the Total DAI=4 sent in subframe 1, the Total DAI=6 sent in subframe 3.It is descending Corresponding first sub-frame of uplink of subframe 0 is subframe 4, and feedback window is subframe 4~7, the up son of descending sub frame 1 corresponding first Frame is subframe 5, and feedback window is subframe 5~8, and corresponding first sub-frame of uplink of descending sub frame 3 is subframe 7, and feedback window is son Frame 7~10.But it is due to the descending sub frame that subframe 8~10 is new downlink burst, real effective feedback window is respectively son Frame 4~7, subframe 5~7 and subframe 7.So, described in detail below by taking several situations as an example.Note, other situations can By that analogy.

Do not pass through if-UE1 carries out CCA detections before sub-frame of uplink 4,5, but pass through in sub-frame of uplink 6, And carry out CCA detections before sub-frame of uplink 7 to pass through, then send descending sub frame 0 in sub-frame of uplink 6 HARQ-ACK, is 6 bits, and sends the HARQ-ACK of descending sub frame 1, is 2 bits, altogether 8 Bit, and descending sub frame 2 and the HARQ-ACK of subframe 3 are sent in sub-frame of uplink 7, it is 0+4=4 bits. Note, UE1 is in descending sub frame 2 and is not detected by DL DCI, UE1 only detects what is obtained according to descending sub frame 3 Total DAI=6 and obtained Total DAI=4 are detected in subframe 1, it is determined that need to be sent pair in sub-frame of uplink 7 Should be in two PDSCH HARQ-ACI bits, i.e. 4 bits.It is possible to UE1 and also examines side in descending sub frame 3 A PDSCH is miss out, UE1 cannot be distinguished by descending sub frame 2 or the leak detection of subframe 3, but simultaneously Do not influence length and the sequence of generation HARQ-ACK bits.And it is of note that due to UE1 Through have sent descending sub frame 0 and the HARQ-ACK bits of subframe 1 in sub-frame of uplink 6, UE1 is in sub-frame of uplink During 7 transmission HARQ-ACK bits, descending sub frame 0 and the HARQ-ACK bits of subframe 1 are not just retransmited.

If-UE1 carries out CCA before sub-frame of uplink 6, detection does not pass through, but passes through in sub-frame of uplink 7, then The HARQ-ACK of descending sub frame 0 is sent in sub-frame of uplink 7, is 6 bits, and send descending sub frame 1 HARQ-ACK, is 2 bits, and sends the HARQ-ACK of descending sub frame 3, is 4 bits, altogether 12 bits.

Note, assume that Total DAI and/or counter DAI are independently counted in a PUCCH in the present embodiment Number.It is simple for description, a PUCCH group is only described here, but is possible there are multiple PUCCH in systems in practice Group, such as one PUCCH group, including at least frequency range carrier wave is authorized, another PUCCH group is only comprising unauthorized Frequency range carrier wave.It is described in the present embodiment only for the PUCCH groups for only including unauthorized frequency range carrier wave, for extremely Few comprising the PUCCH groups for authorizing frequency range carrier wave, the present embodiment is not limited, and can carry out up control according to prior art The feedback of signal processed, can also be realized according to other method.

Above-mentioned example gives the example of bit number based on FDD-FDD, and embodiments of the invention are also applied for TDD-FDD situation.Thinking is the same, it is only necessary to correspond to corresponding FDD operation in TDD operations.For example, Mode two in step 703, according to the PDSCH according to the actual transmission in base station of existing TDD quantity (such as Total DAI) bit number is determined, and the mode one in step 703, then the sub-frame of uplink pair for above sending not successfully The descending PDSCH answered HARQ-ACK bits according to existing TDD according to may feedback maximum number bits come It is determined that.In TDD operations, in fact it could happen that the time-frequency binding window time dimension length of a sub-frame of uplink>1, and may The time-frequency binding window time dimension length for different sub-frame of uplink occur is different.If two by the way of in step 703, base Stand send total DAI and counter DAI when, it is necessary to based on first sub-frame of uplink in feedback window to currently it is up Subframe, the PDSCH that all descending sub frames of the corresponding all time-frequencies binding windows of all these sub-frame of uplink may be sent comes Counted.As shown in figure 12, descending sub frame 0,1 is the HARQ-ACK time-frequencies binding window of sub-frame of uplink 5, length For 2, descending sub frame 3 is the HARQ-ACK time-frequencies binding window of sub-frame of uplink 7, and length is 1.

Invention only describes the situation that ascending control information only includes HARQ-ACK, but it is suitable for bag above HARQ-ACK and/or CSI situation are contained.

The present embodiment is applied to send ascending control information on predefined up-link carrier, and such as pScell and pScell are Unauthorized frequency range carrier wave.The present embodiment can be combined with embodiment three, i.e., according to the method for embodiment three, it is determined that many Sent in some up-link carrier in individual up-link carrier, and according to the method for the present embodiment, it is determined that up at this Sent in some sub-frame of uplink in multiple sub-frame of uplink on carrier wave.Determine carrier wave and determine that the order of subframe is not limited It is fixed.

Embodiment 5

The present embodiment is described emphatically from base station side, corresponding with embodiment three.

Present applicant proposes a kind of HARQ-ACK message receiving methods, as shown in figure 13, comprise the following steps：

- step 1301：Base station determines the sub-frame of uplink of the corresponding HARQ-ACK feedbacks of descending sub frame n PDSCH n+k。

Base station can be according to the HARQ-ACK feedback times being pre-configured with to UE, or dynamic instruction is to UE's HARQ-ACK feedback times, determine the sub-frame of uplink.

- step 1302：Base station is on multiple predefined up-link carriers, since the first up-link carrier, and detection is at least The ascending control information of HAQR-ACK information is included, it is determined that receiving the carrier wave of ascending control information.

The predefined up-link carrier can be as defined in agreement or base station oneself configuration.

Base station for example by detecting reference signal, or can pass through CRC check, Huo Zhetong by blind Detecting Related solution is crossed, is judged on corresponding subcarrier, whether UE have sent including at least HAQR-ACK letters The ascending control information of breath, or base station can be by the way that whether have sent accordingly on UE for UE transmissions be detected The instruction of upstream signals, to judge on corresponding subcarrier, whether UE, which have sent, comprises at least The ascending control information of HAQR-ACK information.For example, UE is if necessary to transmission PUSCH and accordingly Ascending control information, but UE is not detected by LBT, then UE can be carried to base station repeats in corresponding son The behavior not sent on ripple, for example, report in UE on Pcell.Therefore, base station can be by detecting UE's Information is reported, judges whether UE have sent the ascending control information including at least HAQR-ACK information.

- step 1303：Believed according to the carrier wave received including at least the ascending control information of HAQR-ACK information base station Breath, it is determined that the length and bit of the ascending control information including at least HAQR-ACK information that need to be received Put in order.

It is preferred that, it is transmitted if base station assumes that UE sends HARQ-ACK information on the first up-link carrier HARQ-ACK information only comprising the descending carrier in PUCCH groups where the first up-link carrier The corresponding HARQ-ACK information of PDSCH.If sending HARQ-ACK letters on the second up-link carrier Breath.Transmitted HARQ-ACK information is both comprising the descending load in PUCCH groups where the first up-link carrier The corresponding HARQ-ACK information of PDSCH of ripple, also comprising in PUCCH groups where the second up-link carrier The corresponding HARQ-ACK information of PDSCH of descending carrier.By that analogy.

It is preferred that, UE is assumed according to predefined order in base station, in PUCCH groups where the first up-link carrier The PDSCH of descending carrier where descending carrier and the second up-link carrier in PUCCH groups HARQ-ACK ratios Spy is ranked up.For example, PUCCH groups include Pcell where the second up-link carrier, then the PUCCH groups Before the corresponding HARQ-ACK bits of interior descending carrier come, PUCCH groups where the first up-link carrier Behind the PDSCH of interior descending carrier HARQ-ACK bits come.

It is preferred that mode one：Assume UE it is determined that coming the HARQ-ACK feedback bits of carrier wave set above in base station When, determined according to the maximum number bits that may be fed back.It is that is, identical with the mechanism in the systems of LTE Release 12, According to the information indicated in the carrier number of configuration and/or UL DAI/DL DAI, bit number is determined, rather than according to The PDSCH of the actual transmission in base station quantity (such as Total DAI) determines bit number.But it is last for coming Carrier wave set HARQ-ACK bits, then according to the PDSCH of the actual transmission in base station quantity (such as Total DAI) bit number is determined.

It is preferred that mode two：If base station is assumed to receive the up control for including HARQ-ACK on the second up-link carrier Information processed, then the HARQ-ACK feedback bits for all carrier wave sets fed back are according to the maximal bit that may be fed back Count to determine.That is, it is identical with the mechanism in the systems of LTE Release 12, according to the carrier number and/or UL of configuration The information indicated in DAI/DL DAI, determines bit number, rather than according to the PDSCH's of the actual transmission in base station Quantity (such as Total DAI) determines bit number.If base station is assumed to receive on the first up-link carrier to include HARQ-ACK ascending control information, the then HARQ-ACK bits received are sent according to base station is actual PDSCH quantity (such as Total DAI) determine bit number.

Embodiment 6

The present embodiment is described emphatically from base station side, corresponding with example IV.

Present applicant proposes a kind of method of reseptance of HARQ-ACK information, as shown in figure 14, comprise the following steps：

Step 1401：Base station determines the first sub-frame of uplink of the corresponding HARQ-ACK feedbacks of descending sub frame n PDSCH n+k.And uplink control information feedback window of the determination using the first sub-frame of uplink as starting point.

Base station can be according to the HARQ-ACK feedback times and/or feedback window information being pre-configured with to UE, or dynamic UE HARQ-ACK feedback times and/or feedback window information are indicated to, the first sub-frame of uplink, and feedback window is determined.

Step 1402：Base station is in the uplink control information feedback window, since first sub-frame of uplink, and detection is extremely The ascending control information of HAQR-ACK information is included less, it is determined that receiving the subframe of ascending control information.

Base station either by CRC check or can pass through phase by blind Detecting, such as by detecting reference signal Close and solve, judge in corresponding subframe, whether UE have sent the upload control letter including at least HAQR-ACK information Breath, or base station can by detect UE send the instruction that corresponding upstream signals whether are have sent on UE, To judge on corresponding subcarrier, whether UE have sent the ascending control information including at least HAQR-ACK information

Step 1403：The subframe for the ascending control information that base station comprises at least HAQR-ACK information according to receiving, it is determined that Length and the bit arrangement order for the ascending control information including at least HAQR-ACK information that need to be received.

It is preferred that, HARQ-ACK ratios of the UE to the PDSCH of the corresponding descending carrier of different sub-frame of uplink is assumed in base station When spy is ranked up, according to the sequencing of sub-frame of uplink, arrange the PDSCH's of its corresponding descending carrier HARQ-ACK bits.

It is preferred that, if base station is it is assumed that some sub-frame of uplink X1 in feedback window is detected and comprised at least The ascending control information of HAQR-ACK information, then the ascending control information that the sub-frame of uplink X2 below is detected, no The HARQ-ACK information sent comprising UE in sub-frame of uplink X1.

It is preferred that mode one：Base station is when sending Total DAI and counter DAI, Total DAI and/or counter DAI It is separate counts in descending sub frame respectively in the corresponding time-frequency binding window of each the X sub-frame of uplink.Base station is false If UE is when sub-frame of uplink X feeds back HARQ-ACK bits, it is assumed that HARQ-ACK bits contain X₁, X₂,… X_nThe corresponding HARQ-ACK bits of individual sub-frame of uplink, then X_nThe corresponding HARQ-ACK ratios of individual sub-frame of uplink Spy can determine bit number according to the actual PDSCH sent quantity (such as Total DAI), and X₁, X2 ... X_n-1Individual sub-frame of uplink corresponding HARQ-ACK bits, it should according to may the maximum number bits of feedback determine.And And when UE successful transmission of correspondence descending sub frame HARQ-ACK bits after, in sub-frame of uplink below, then without It need to include and have sent HARQ-ACK bits.

It is preferred that mode two：Base station is when sending Total DAI and counter DAI, Total DAI and/or counter DAI It is that the descending sub frame that the corresponding all time-frequencies of all sub-frame of uplink in uplink control information feedback window are bound in windows is inline Total number.Assume that, for feeding back HARQ-ACK in any one sub-frame of uplink, UE is actual all in accordance with base station in base station The PDSCH of transmission number determines HARQ-ACK bit lengths, and arranges HARQ-ACK bits.For example, Determined according to Total DAI and counter DAI.And when UE successful transmission of correspondence descending sub frame After HARQ-ACK bits, in sub-frame of uplink below, then without comprising having have sent HARQ-ACK bits.

As can be seen that base station is when detecting sub-frame of uplink X2 ascending control information, it is based on the up of sub-frame of uplink X1 The testing result of control information.For example, it is desired to judge whether UE have sent ascending control information in sub-frame of uplink X1, from And judge HARQ-ACK bit lengths and aligning method in sub-frame of uplink X2 ascending control information.

For example, Figure 11 example, it is assumed that downlink burst is 0~3 comprising subframe, uplink burst is 4~7 comprising subframe, Subframe 8~10 is included followed by another downlink burst.UE1 is configured for 4 CC, and CC0 is mandate frequency range carrier wave, For Pcell, CC1~CC3 is unauthorized frequency range carrier wave, in same PUCCH groups, and wherein CC1 is pScell, feedback CC1~CC3 HARQ-ACK, but with CC0 not in a PUCCH group.It is simple for description, CC1~CC3 is only described, CC0 is not described, CC0 is fed back according to prior art.Assuming that CC1~CC3 is that 2 transmission blocks at most can be transmitted TM.Base station have sent PDSCH, in descending sub frame 1, in CC1 on CC1~CC3 in descending sub frame 0 for UE1 It is upper to have sent PDSCH for UE1, in descending sub frame 3, PDSCH is have sent for UE1 on CC1 and CC3.So, The Total DAI=3 that base station is sent in subframe 0, the Total DAI=4 sent in subframe 1, the Total sent in subframe 3 DAI=6.Corresponding first sub-frame of uplink of descending sub frame 0 is subframe 4, and feedback window is subframe 4~7, the correspondence of descending sub frame 1 The first sub-frame of uplink be subframe 5, feedback window be subframe 5~8, corresponding first sub-frame of uplink of descending sub frame 3 be subframe 7, Feedback window is subframe 7~10.But it is due to the descending sub frame that subframe 8~10 is new downlink burst, real effective feedback Window is respectively subframe 4~7, subframe 5~7 and subframe 7.So, described in detail below by taking several situations as an example.Note, Other situations can be by that analogy.

- base station detects the ascending control information for including HARQ-ACK in sub-frame of uplink 4, and base station is assumed in sub-frame of uplink 4 It is the HARQ-ACK of descending sub frame 0 to expect what is received, is 6 bits.

If-base station is not detected by the ascending control information comprising HARQ-ACK in sub-frame of uplink 4, base station is up Subframe 5 detects the ascending control information for including HARQ-ACK, then assume to expect in sub-frame of uplink 5 in base station The HARQ-ACK of descending sub frame 0 is received, is 6 bits, and expects to receive descending sub frame 1 HARQ-ACK, is 2 bits, altogether 8 bit.

If-base station is not detected by the ascending control information comprising HARQ-ACK in sub-frame of uplink 4,5, base station exists Sub-frame of uplink 6 detects the ascending control information for including HARQ-ACK, then assume in sub-frame of uplink 6 base station Expect to receive the HARQ-ACK of descending sub frame 0, be 6 bits, and expect to receive descending sub frame 1 HARQ-ACK, is 2 bits, altogether 8 bit.

If-base station is not detected by the ascending control information comprising HARQ-ACK in sub-frame of uplink 4,5, base station exists Sub-frame of uplink 6 is detected, expects to receive the HARQ-ACK of descending sub frame 0, is 6 bits, and descending sub frame 1 HARQ-ACK, is 2 bits, altogether 8 bit.If detected successfully, base station is examined in sub-frame of uplink 7 Survey, expect to receive the HARQ-ACK of descending sub frame 2 and subframe 3, be 0+4=4 bits.

If base station is to detect the ascending control information comprising HARQ-ACK before sub-frame of uplink 7, base station exists Sub-frame of uplink 7 detects that base station is expected to receive the HARQ-ACK of descending sub frame 0 in sub-frame of uplink 7, is 6 bits, and The HARQ-ACK of descending sub frame 1, is 2 bits, and descending sub frame 3 HARQ-ACK, be 4 bits, altogether 12 Bit.

It is preferred that, base station is it is assumed that no matter whether some sub-frame of uplink X1 in feedback window detects comprises at least The ascending control information of HAQR-ACK information, then the ascending control information that the sub-frame of uplink X2 below is detected, according to The HARQ-ACK information so sent comprising UE in sub-frame of uplink X1.I.e. in Figure 11 example, no matter base station is in son Whether frame 4 detects HARQ-ACK information, if base station is assumed to detect in subframe 5, HARQ-ACK information Bit number is 4, if subframe 6 can be detected, and HARQ-ACK information bits are 4, if subframe 7 can be detected, Then HARQ-ACK information bits are 6.

Embodiment 7

Present applicant proposes a kind of method of HARQ-ACK information, as shown in figure 16, comprise the following steps：

Step 1601：UE determines the first sub-frame of uplink of the corresponding HARQ-ACK feedbacks of descending sub frame n PDSCH n+k.And uplink control information feedback window of the determination using the first sub-frame of uplink as starting point.

It is preferred that, feedback window length is what eNB was configured.

It is preferred that, feedback window length is what system was defined.

It is preferred that, feedback window length N is the positive integer more than or equal to 1.

Step 1602：UE is in the uplink control information feedback window, it is determined that transmittable comprise at least HAQR-ACK The subframe position of the ascending control information of information, and determine to send the upper of the ascending control information in the subframe Row carrier wave.

Step 1603：UE is according to the subframe position that the ascending control information including at least HAQR-ACK information can be transmitted And up-link carrier, it is determined that the HARQ-ACK information bits sent.And in the subframe, the up-link carrier Send the ascending control information including at least HARQ-ACK information bits.

In step 1602, UE is according to the subframe that the ascending control information including at least HAQR-ACK information can be transmitted Position determines that the method that the up-link carrier of the ascending control information can be transmitted is, in uplink control information feedback window Such as in first sub-frame of uplink, first up-link carrier is the up-link carrier determined according to predefined criterion, described Up-link carrier is to be scheduled in up-link carrier minimum Scellindex in the up-link carrier that PUSCH is sent in the subframe, And/or the up-link carrier indicated by high-level signaling/physical layer signaling.If UE can not send the up-link carrier, such as Do not detected by LBT, then UE attempts to send described in second sub-frame of uplink in uplink control information feedback window Ascending control information.Second up-link carrier of UE selections meets special with the first up-link carrier in a upper sub-frame of uplink Fixed relation, for example, send the up-link carrier of the ascending control information to be scheduled in second sub-frame of uplink State up-link carrier small Scellindex second in the up-link carrier that PUSCH is sent in the second sub-frame of uplink.It is noticeable It is that the ascending control information for being delayed by transmission in the second sub-frame of uplink except that can include (for example should be on first The ascending control information sent in row subframe), can also (for example should be comprising the ascending control information not being delayed by The ascending control information sent in second sub-frame of uplink).The ascending control information not being delayed by is still scheduled Send and sent on up-link carrier minimum Scellindex in PUSCH up-link carrier in second sub-frame of uplink.No It is difficult to see, delay and undelayed ascending control information is to be transmitted on different up-link carriers, therefore keep away Exempt from influence of the ascending control information of delay to undelayed ascending control information, such as HARQ-ACK code books Influence.By that analogy, until uplink control information feedback window terminates.

As shown in figure 17, eNB is that UE is configured with 1 mandate frequency range carrier wave CC0,2 unauthorized frequency range carrier waves, CC1 And CC2.CC0 HARQ-ACK is fed back according to prior art.CC1 and CC2 example are only provided in figure.It is descending Corresponding first sub-frame of uplink of subframe 0 is sub-frame of uplink 4, and the first up-link carrier is CC1, and the second sub-frame of uplink is up Subframe 5, the second up-link carrier is CC2.Corresponding first sub-frame of uplink of descending sub frame 1 is sub-frame of uplink 5, and first is up Carrier wave is CC1.If UE completes up-link carrier CC1 LBT before sub-frame of uplink 4, then UE is in sub-frame of uplink 4 The descending carrier CC1 and CC2 of feeding back downlink subframe 0 HARQ-ACK, and in the feeding back downlink subframe 1 of sub-frame of uplink 5 Descending carrier CC1 and CC2 HARQ-ACK.If UE completes up-link carrier CC1 not before sub-frame of uplink 4 LBT, but complete up-link carrier CC1 LBT before sub-frame of uplink 5 but do not complete CC2 LBT, then UE exists The descending carrier CC1 and CC2 of the feeding back downlink subframe 1 of sub-frame of uplink 5 of up-link carrier 1 HARQ-ACK, and abandon Send the descending carrier CC1 and CC2 of descending sub frame 0 HARQ-ACK.If UE is completed not before sub-frame of uplink 4 Up-link carrier CC1 LBT, but complete before sub-frame of uplink 5 up-link carrier CC1 LBT and complete CC2's LBT, then descending carrier CC1s and CC2 of the UE in the feeding back downlink subframe 1 of subframe 5 of up-link carrier 1 HARQ-ACK, and send the descending carrier CC1 and CC2 of descending sub frame 0 in the subframe 5 of up-link carrier 2 HARQ-ACK.If UE completes up-link carrier CC1 LBT not before sub-frame of uplink 4, and not in up son Up-link carrier CC1 LBT is completed before frame 5, but CC2 LBT is completed before sub-frame of uplink 5, then UE exists The subframe 5 of up-link carrier 2 sends the descending carrier CC1 and CC2 of descending sub frame 0 HARQ-ACK, and abandons sending The descending carrier CC1 and CC2 of descending sub frame 1 HARQ-ACK.If UE is in subframe 5 and subframe 6 in CC1 and CC2 On all do not complete LBT, then abandon sending all HARQ-ACK.

Embodiment 8

Present applicant proposes a kind of HARQ-ACK information and CSI feedback method, as shown in figure 18, including following step Suddenly：

Step 1801:UE determines the sub-frame of uplink n+k of the corresponding HARQ-ACK feedbacks of descending sub frame n PDSCH, and And judge whether sub-frame of uplink n+k needs feedback cycle CSI.

Step 1802：UE feeds back first kind ACK/NACK in the sub-frame of uplink n+k on the first up-link carrier, And/or Equations of The Second Kind ACK/NACK, and/or the feedback cycle on the 3rd up-link carrier are fed back on the second up-link carrier CSI。

It is preferred that, first kind ACK/NACK is the part or all of carrier wave in first kind PUCCH group ACK/NACK, the part or all of carrier wave is not belonging to Equations of The Second Kind PUCCH group, Equations of The Second Kind ACK/NACK and is The ACK/NACK of carrier wave in Equations of The Second Kind PUCCH group.

It is preferred that, first kind ACK/NACK is including at least the ACK/NACK for authorizing frequency range carrier wave, Equations of The Second Kind ACK/NACK is the ACK/NACK of unauthorized frequency range carrier wave.

It is preferred that, the first up-link carrier is the mandate frequency range carrier wave in first kind PUCCH group.If UE can be propped up Sent while holding PUCCH and PUSCH, then first up-link carrier is transmittable in first kind PUCCH group Pcell and/or pScell defined in PUCCH up-link carrier, such as existing standard, usually authorize frequency range carrier wave. If UE can not support to send while PUCCH and PUSCH, first up-link carrier is first kind PUCCH The mandate frequency range carrier wave in PUCCH up-link carrier or first kind PUCCH group can be transmitted in group.

It is preferred that, the second up-link carrier is the mandate frequency range carrier wave and/or unauthorized frequency range in Equations of The Second Kind PUCCH group Carrier wave.

It is preferred that, the 3rd up-link carrier is mandate frequency range carrier wave.

It is preferred that, the 3rd up-link carrier is the mandate frequency range carrier wave in first kind PUCCH group.

It is preferred that, the 3rd up-link carrier is what base station was configured, and one corresponding with Equations of The Second Kind PUCCH group authorizes frequency Duan Zaibo.The mandate frequency range carrier wave can be not belonging to Equations of The Second Kind PUCCH group.

It is preferred that, UE on the 3rd up-link carrier during feedback cycle CSI, one kind that can be in the following manner or It is a variety of to carry out：

Mode one：Can be while send PUCCH and PUSCH, and in subframe n+k, UE if UE is configured as It has been scheduled at least one mandate frequency range carrier wave and has sent PUSCH, and it is anti-on the first up-link carrier without needing The first kind ACK/NACK of feedback, then UE feeds back week on the 3rd up-link carrier Pcell and/or PScell PUCCH Phase property CSI；And/or, if UE be configured as can while send PUCCH and PUSCH, and in subframe n+k, UE, which has been scheduled at least one mandate frequency range carrier wave, sends PUSCH, and needs to feed back on the first up-link carrier First kind ACK/NACK, then UE feeds back the first kind on the first up-link carrier Pcell/pScell PUCCH ACK/NACK, and selected from the scheduled mandate frequency range carrier wave that send PUSCH according to predefined rule One carrier wave as the 3rd up-link carrier, and on the 3rd up-link carrier PUSCH carryings periodicity CSI (note, First up-link carrier and the 3rd up-link carrier are probably same up-link carrier, it is also possible to different up-link carriers, but It is all to authorize frequency range carrier wave to be)；And/or, if UE be configured as can while send PUCCH and PUSCH, and And in subframe n+k, UE has only been scheduled and has sent PUSCH at least one unauthorized frequency range carrier wave, and is not scheduled PUSCH is sent authorizing frequency range carrier wave, then UE is anti-on the 3rd up-link carrier Pcell and/or PScell PUCCH Periodicity CSI and/or first kind ACK/NACK is presented, now the first up-link carrier and the 3rd up-link carrier carry to be same Ripple.In the manner, it is generally the case that the PUSCH of unauthorized frequency range carrier wave is sent can not be by mandate frequency range carrier wave hair The influence sent.

Mode two：If UE be not configured as can while send PUCCH and PUSCH, and in subframe n+k, UE has been scheduled and has sent PUSCH at least one mandate frequency range carrier wave, then UE will be sent from scheduled A carrier wave is selected as on the 3rd according to predefined rule in PUSCH the first up-link carrier mandate frequency range carrier wave Row carrier wave, and the PUSCH carrying periodicity CSI and/or first kind ACK/NACK on the 3rd up-link carrier, this When first and the 3rd up-link carrier be same up-link carrier；And/or if UE be not configured as can be while send PUCCH and PUSCH, and in subframe n+k, UE has only been scheduled and sent at least one unauthorized frequency range carrier wave PUSCH, and be not scheduled in mandate frequency range carrier wave and send PUSCH, then UE in the 3rd up-link carrier Pcell and/or Feedback cycle CSI and/or first kind ACK/NACK and/or Equations of The Second Kind ACK/NACK on PScell PUCCH, and And do not send the PUSCH of unauthorized frequency range carrier wave, now first and the 3rd up-link carrier be same up-link carrier.This In mode, it is generally the case that the PUSCH of unauthorized frequency range carrier wave is sent by the shadow for authorizing frequency range carrier wave PUCCH to send Ring, authorize frequency range carrier wave PUCCH, unauthorized frequency range carrier wave PUSCH not to send if having sent.

Note, Equations of The Second Kind ACK/NACK is sent only on the second up-link carrier under normal circumstances, such as in Equations of The Second Kind When at least one up-link carrier sends PUSCH in PUCCH group, Equations of The Second Kind ACK/NACK is in the second up load Sent on ripple, and if only if in particular cases, just return back to transmission on the first up-link carrier at certain.Fallback conditions exist Describe, be not repeated in other embodiment in the present invention.

5 carrier waves are configured with assuming that eNB is UE, wherein CC1, CC2 is mandate frequency range carrier wave, and CC3~CC5 awards to be non- Weigh frequency range carrier wave.CC1 is Pcell, and CC1~CC5 is in same first kind PUCCH group, and PUCCH can be in CC1 It is upper to send, and CC3~CC5 is in same Equations of The Second Kind PUCCH group.Wherein CC1, CC2 ACK/NACK are only It can send, or can only be sent on CC1/CC2 PUSCH on CC1 PUCCH.CC3~CC5's ACK/NACK is in most cases sent not on CC1/CC2, such as when at least one in CC3~CC5 When sending PUSCH on CC, ACK/NACK is sent in CC3~CC5 at least one PUSCH.But specific In the case of, CC3~CC5 ACK/NACK can be sent on CC1/CC2, such as when not having one in CC3~CC5 When sending PUSCH on individual CC.And periodicity CSI, either any one CC in CC1~CC5 periodicity CSI, It can not send, i.e., can only be sent on CC1/CC2 on CC3~CC5.

As shown in figure 19, eNB dispatches UE CC2 in subframe n, and CC3, CC5 sends PUSCH in subframe n+4.Also, In subframe n+4, UE need feed back CC1~CC5 descending ACK/NACK, and CC3 periodicity CSI.Assuming that UE is configured as can be while send PUCCH and PUSCH, then, in subframe n+4, PUCCHs of the UE on CC1 CC1, CC2 ACK/NACK are fed back, PUSCH is sent on CC2, and CC3 is fed back on CC2 PUSCH Periodicity CSI, UE LBT is carried out on CC3 and CC5, send PUSCH on the CC by LBT, and Carry CC3~CC5's according to predefined criterion by the PUSCH on LBT one or more CC ACK/NACK.The predefined criterion can for the other embodiment of the present invention method, or other existing skills Art.

In another example, as shown in figure 20, eNB dispatches UE CC3 in subframe n, and CC5 sends PUSCH in subframe n+4.And And, in subframe n+4, UE need feed back CC1~CC5 descending ACK/NACK, and CC3 periodicity CSI. Assuming that be configured as can be while send PUCCH and PUSCH by UE, then, in subframe n+4, UE is on CC1 PUCCH feedback CC1, CC2 ACK/NACK, and on CC1 PUCCH feed back CC3 periodicity CSI, UE carries out LBT on CC3 and CC5, sends PUSCH on the CC by LBT, and by one of LBT Or the PUSCH on multiple CC carries CC3~CC5 ACK/NACK according to predefined criterion.It is not difficult to find out, (either authorized or unauthorized frequency range carrier wave to ensure to send periodicity CSI not on the carrier wave of unauthorized frequency range Periodicity CSI), when at least one in same first kind PUCCH group authorizes frequency range carrier wave to send PUSCH When, periodicity CSI can be to send on the PUSCH of one wherein mandate frequency range carrier wave, and works as the same first kind When with no authorized frequency range carrier wave sends PUSCH in PUCCH group, then periodicity CSI can only be in Pcell or pScell PUCCH on send, rather than on the PUSCH of unauthorized frequency range send.Frequency range carrier wave is authorized on how to choose PUSCH send periodicity CSI, can select to send load minimum Scell ' index in PUSCH mandate frequency range carrier wave The PUSCH carrying periodicity CSI of ripple.

Mode three：If in the up-link carrier in subframe n+k, Equations of The Second Kind PUCCH groups, UE is successfully at one Up-link carrier have sent PUSCH and HARQ-ACK, and UE needs to send in the Equations of The Second Kind PUCCH groups The periodicity CSI of descending carrier, then the corresponding mandate frequency range of the Equations of The Second Kind PUCCH groups that UE is configured in base station is carried Periodicity CSI is sent on ripple (the 3rd up-link carrier).3rd up-link carrier can pass through PUCCH or PUSCH Carry periodicity CSI.It is preferred that, the periodicity CSI of the corresponding descending carrier of the 3rd up-link carrier transmission, According to prior art, authorizing frequency range carrier wave to send, such as sent in the Pcell/pScell of first kind PUCCH groups. Embodiment 9

Present applicant proposes a kind of method that ascending control information is sent in unauthorized frequency range, comprise the following steps：

Step 2101:UE receives the UL grant signalings that the PUSCH of the unauthorized frequency range of scheduling is sent.

Step 2102：UL grant signalings received by UE judgment steps 2101 are to send up for dispatching UE The PUSCH of data, or only send uplink control signaling PUSCH for dispatching UE.

It is preferred that, the UL grant are if the DCI, and UL grant of one transmission block (TB) of scheduling That indicate is Imcs=29, and resource indicates that the PRB of scheduling is one group of pectination (Interlace) PRB, and CSI request (CSI request) indicates aperiodic CSI and reported.So, UE judges the PUSCH of base station scheduling Not comprising upstream data (no TB for UL-SCH), UE only reporting uplink control informations.

It is preferred that, the UL grant are if dispatch multiple transmission blocks (TB) DCI, and the UL grant That indicate is Imcs=29, and only scheduled a TB, and only scheduled a data flow, and resource refers to Show that the PRB of scheduling indicates a carrier wave or one for an Interlace, and CSI request (CSI request) Individual CSI process aperiodic CSI is reported.So, UE judges that the PUSCH of base station scheduling does not include upstream data (no TB for UL-SCH), UE only reporting uplink control informations.

It is preferred that, one interlace contains equally spaced one group of PRB on frequency domain.For example, In 20MHz system bandwidths, equally spaced 10 PRB are one group, one interlace of correspondence.

Step 2103：The PUSCH transmission types that UE is determined according to UL grant signalings, send upstream data or Only send upstream control signaling.

Corresponding to the above method, disclosed herein as well is a kind of equipment, as shown in figure 15, the equipment includes receiving module And feedback module, wherein：

Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method is carried It can be by program to instruct the hardware of correlation to complete, described program can be stored in a kind of computer-readable storage In medium, the program upon execution, including one or a combination set of the step of embodiment of the method.

In addition, each functional unit in the application each embodiment can be integrated in a processing module, can also That unit is individually physically present, can also two or more units be integrated in a module.It is above-mentioned integrated Module can both be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.It is described integrated If module realized and as independent production marketing or in use, can also stored using in the form of software function module In a computer read/write memory medium.

Storage medium mentioned above can be read-only storage, disk or CD etc..

The preferred embodiment of the application is the foregoing is only, not to limit the application, all essences in the application God is with principle, and any modification, equivalent substitution and improvements done etc. should be included in the scope of the application protection Within.

Claims

1. a kind of feedback method of hybrid automatic repeat-request response HARQ-ACK information, it is characterised in that including：

2. according to the method described in claim 1, it is characterised in that：The first up son of the feedback HARQ-ACK Frame is determined according to the configured information in the physical layer signaling that receives, and/or the feedback HARQ-ACK first Sub-frame of uplink is determined according to the HARQ-ACK feedback times of reference carrier He the carrier wave for receiving PDSCH.

3. according to the method described in claim 1, it is characterised in that：The first up son of the feedback HARQ-ACK The starting point of feedback window where frame is first sub-frame of uplink, and the length of the feedback window is configurable.

4. the method according to claim any one of 1-3, it is characterised in that：Second sub-frame of uplink is described In feedback window.

5. according to the method described in claim 1, it is characterised in that：

The time-frequency binding window includes all descending sub frames for needing to feed back HARQ-ACK in first sub-frame of uplink, And all descending sub frames are according to setting rule compositor.

6. the method according to claim 1,4 and 5 any one, it is characterised in that：It is described according to corresponding DL DAI Mapping value, by the corresponding bits of the HARQ-ACK bit maps of each HARQ feedback unit to feedback bits sequence On include：Determine whether the second sub-frame of uplink of other feedback windows overlapping with second sub-frame of uplink；

7. according to the method described in claim 1, it is characterised in that：

The mapping value according to corresponding DL DAI, by the HARQ-ACK bit maps of each HARQ feedback unit Included on to the corresponding bits of feedback bits sequence, determine whether other feedbacks overlapping with second sub-frame of uplink Second sub-frame of uplink of window；

8. the method according to claim 6 or claim 7, it is characterised in that：The setting rule compositor is included This two class HARQ-ACK is compared by display according to the sequencing of corresponding first sub-frame of uplink of this two class HARQ-ACK Sequence, i.e., before the corresponding HARQ-ACK bits of the first forward in time sub-frame of uplink come, in time rearward The corresponding HARQ-ACK bits of the first sub-frame of uplink come behind.

9. the method according to claim 6 or claim 7, it is characterised in that：What the reality was scheduled PDSCH counts Counter DAI according at least to DAI sum the Total DAI and/or DAI received and determined, and described Total DAI and/or Counter DAI, are corresponding each time-frequency bindings of all sub-frame of uplink in the feedback window Window combined count.

10. according to the method described in claim 1, it is characterised in that：It is described to determine that feedback HARQ-ACK's is up The method of carrier wave includes：

11. method according to claim 10, it is characterised in that：

HARQ-ACK is fed back in first up-link carrier, will be each according to corresponding DL DAI mapping value When the HARQ-ACK bit maps of HARQ feedback unit are in the corresponding bits of feedback bits sequence, according to described PDSCH actually scheduled in all descending sub frames in the corresponding time-frequency binding window of one up-link carrier, it is determined that described HARQ-ACK bits；And/or,

12. method according to claim 11, it is characterised in that：The scheduled PDSCH at least roots of the reality Determined according to Total DAI and/or the Counter DAI received；And/or,

13. a kind of channel condition information CSI feedback method, it is characterised in that including：

In sub-frame of uplink of the expected feedback including at least CSI ascending control information, it is determined that feeding back the ascending control information Mandate frequency range the 3rd up-link carrier, and determine carry the ascending control information on the 3rd up-link carrier Uplink physical channel；

The uplink physical channel feedback upload control including at least CSI on the 3rd up-link carrier is believed Breath.

14. method according to claim 13, it is determined that feeding back the 3rd of the mandate frequency range of the ascending control information Up-link carrier, and determine that the method for carrying the uplink physical channel of the ascending control information includes：When the up control When information processed only includes periodicity CSI, the ascending control information is sent on the 3rd up-link carrier, and the described 3rd is up Carrier wave is the mandate frequency range carrier wave that main carrier Pcell or base station are configured, and carries the up of the ascending control information Physical channel is the PUCCH of the 3rd up-link carrier, and/or,

When the ascending control information had not only included periodicity CSI but also including HARQ-ACK, and at least one is awarded Power frequency range carrier wave be scheduled PUSCH send when, the periodicity CSI of the ascending control information is in the 3rd up-link carrier Upper to send, the 3rd up-link carrier is the mandate frequency range carrier wave of the PUSCH that has been scheduled, and carries on described The uplink physical channel of row control information is PUSCH, and the HARQ-ACK information of the ascending control information exists Sent on the PUCCH of Pcell or the mandate frequency range carrier wave of base station configuration, and/or,

When the ascending control information had not only included periodicity CSI but also including HARQ-ACK, and neither one mandate Frequency range carrier wave has been scheduled PUSCH when sending, and the ascending control information is sent on the 3rd up-link carrier, and described the Three up-link carriers are the mandate frequency range carrier wave that Pcell or base station are configured, and carry the up of the ascending control information Physical channel is PUCCH.

15. a kind of feedback device of HARQ-ACK information, it is characterised in that including：