CN107294664A

CN107294664A - Method and apparatus for communication

Info

Publication number: CN107294664A
Application number: CN201610200943.8A
Authority: CN
Inventors: 仲崇显; 杨涛; 孙芳蕾
Original assignee: Alcatel Lucent Shanghai Bell Co Ltd
Current assignee: Nokia Shanghai Bell Co Ltd
Priority date: 2016-03-31
Filing date: 2016-03-31
Publication date: 2017-10-24
Anticipated expiration: 2036-03-31
Also published as: CN107294664B

Abstract

Embodiment of the disclosure provides a kind of method and apparatus for being used to communicate.This method includes：In base station, the up-link transmission from user equipment is received in the first uplink sub-frames；In response to receiving the up-link transmission, the feedback and the configured information associated with the feedback transmitted for the up-link are sent in downlink subframe, the configured information indicates targeted first uplink sub-frames of the feedback and the second uplink sub-frames of the potential re-transmission transmitted for the up-link.

Description

Method and apparatus for communication

Technical field

The disclosure relates generally to the communication technology, and relates more particularly to a kind of for communicating Method and apparatus.

Background technology

Recently, it has been suggested that and the new research project on time delay reduction is discussed to study Time delay reduces the benefit and feasibility of technology.According to related research, Transmission Time Interval TTI Shortening is the very effective means for reducing time delay.Mixed automatic repeat request HARQ The round-trip delay of re-transmission is the pith of the time delay in LTE network.In Current specifications on The description of HARQ timings is based on normal TTI, and it is directed to FDD and time division duplex TDD both of which has the duration of 1 millisecond (ms).

For FDD, this may not be a problem, because HARQ Timing can stretch with TTI length, and keep the timed-shutoff with the n+k of subframe number System.K is that 4 and n+k refers to from physical down link sharing channel PDSCH/ in LTE Physical uplink link shared channels PUSCH transmit to receive positive acknowledgment ACK/ negative Confirm the delay between NACK.However, for TDD, HARQ is fixed When relation be attributed to downlink DL and up-link UL intrinsic discontinuous transmission and more Plus it is complicated.

The content of the invention

In view of above-mentioned technical problem present in prior art, the purpose of embodiment of the disclosure exists In provide it is a kind of be used for communicate method and apparatus, with solve present in prior art it is above-mentioned extremely A few technical problem.

According to the first aspect of the disclosure, there is provided a kind of method for being used to communicate.Methods described Including：In base station, the uplink from user equipment is received in the first uplink sub-frames Transmit on road；And transmitted in response to receiving the up-link, sent out in downlink subframe The feedback and the configured information associated with the feedback transmitted for the up-link are sent, its Described in configured information indicate：Targeted first uplink sub-frames of the feedback, with And the second uplink sub-frames of the potential re-transmission transmitted for the up-link.

In certain embodiments, the configured information can include：The downlink subframe The first difference between numbering and the numbering of first uplink sub-frames, and described second The second difference between the numbering and the numbering of the downlink subframe of uplink sub-frames.

In certain embodiments, methods described can also include：Send further configured information To indicate that the user equipment updates the first difference and the second difference.

In certain embodiments, first difference and the second difference can be in predetermined sets Call number is represented.

In certain embodiments, methods described can also include：Dynamically determined by the base station At least one in first difference and second difference.

In certain embodiments, the feedback can include mixed automatic repeat request HARQ Feedback, and the configured information can include the Process identifier of the HARQ.

In certain embodiments, sending the feedback and the configured information can include：Via Uplink grant message come send it is described feedback and the configured information.

In certain embodiments, the feedback being sent via uplink grant message can wrap Include：The uplink grant message is sent to be used as negative feedback.

According to the second aspect of the disclosure, there is provided a kind of method for being used to communicate.This includes： The feedback transmitted for up-link and the instruction letter associated with the feedback are received from base station Breath；The where the targeted up-link transmission of the feedback is determined based on the configured information One uplink sub-frames；And determine to be used for up-link transmission based on the configured information Potential re-transmission the second uplink sub-frames.

In certain embodiments, methods described can also include：In response to from base station receive into The configured information of one step, updated first included based on the further configured information Difference and the second difference determine first uplink sub-frames and second up-link Subframe.

In certain embodiments, methods described can also include：It is described further receiving Before configured information, without further uplink retransmission.

In certain embodiments, methods described can also include：It is described further receiving Before configured information, holding is carried out further using first difference and second difference Up-link transmission.

In certain embodiments, first difference and second difference can be by predetermined sets In call number represent.

In certain embodiments, at least one in first difference and second difference can Dynamically to be specified by the base station.

In certain embodiments, this method can also include：Come via uplink grant message Receive the feedback and the configured information.

In certain embodiments, the feedback being received via uplink grant message can wrap Include：In response to receiving the uplink grant message, by the uplink grant message It is defined as negative feedback.

According to the third aspect of the disclosure, there is provided a kind of method for being used to communicate.Methods described Including：Corresponding up-link transmission is received at least three uplink sub-frames；It will be used for The differentiation information for distinguishing at least three uplink sub-frames is included in for corresponding In the corresponding feedback of up-link transmission；And institute is sent in identical downlink subframe State corresponding feedback.

In certain embodiments, the feedback can include mixed automatic repeat request HARQ Feedback.

In certain embodiments, the differentiation information can be using the different values of Bit String come table Show at least three uplink sub-frames.

In certain embodiments, the length of the Bit String can be by least three uplink The number of way frame is determined.

In certain embodiments, at least three uplink sub-frames can be up including three Link subframe, and the length of the Bit String can be two bits.

In certain embodiments, in the uplink sub-frames and the downlink subframe extremely Few one can include special subframe.

According to the fourth aspect of the disclosure, there is provided a kind of method for being used to communicate.Methods described Including：Feedback is received in downlink subframe；And based on the differentiation information in the feedback Transmitted to determine that the feedback is directed to the up-link in which uplink sub-frames, wherein described Distinguishing information is used to distinguish at least three uplink sub-frames.

According to the 5th of the disclosure the aspect, there is provided a kind of device for being used to communicate.Described device Including：Receiving unit, is configured as receiving from user equipment in the first uplink sub-frames Up-link transmission；And transmitting element, transmitted in response to receiving the up-link, In downlink subframe send for the up-link transmit feedback and with the feedback Associated configured information, wherein the configured information indicates the feedback targeted described the One uplink sub-frames and the potential re-transmission transmitted for the up-link it is second up Link subframe.

According to the 6th of the disclosure the aspect, there is provided a kind of device for being used to communicate.Described device Including：Receiving unit, be configured as from base station receive for up-link transmit feedback and with The associated configured information of the feedback；First determining unit, is configured as referring to based on described Show that information determines the first UL subframe where the targeted up-link transmission of the feedback Frame；And second determining unit, it is configured as determining to be used for based on the configured information described Second uplink sub-frames of the potential re-transmission of uplink transmission.

According to the 7th of the disclosure the aspect, there is provided a kind of device for being used to communicate.Described device Including：Receiving unit, is configured as receiving on corresponding at least three uplink sub-frames Uplink transmission；Setting unit, is configured as distinguishing at least three up-link The differentiation information of subframe is included in the corresponding feedback transmitted for corresponding up-link In；And transmitting element, it is configured as sending described corresponding in identical downlink subframe Feedback.

According to the eighth aspect of the disclosure, there is provided a kind of device for being used to communicate.Described device Including：Receiving unit, is configured as in downlink subframe receiving feedback；And determine single Member, is configured as determining the feedback on which based on the differentiation information in the feedback Up-link transmission in uplink subframe, wherein the differentiation information is used to distinguish at least three Uplink sub-frames.

Brief description of the drawings

Detailed description below is read by reference to accompanying drawing, embodiment of the disclosure above-mentioned and Other purposes, feature and advantage will be easy to understand.In the accompanying drawings, with exemplary rather than limit The mode of property processed shows some embodiments of the disclosure, wherein：

Fig. 1 schematically shows can be carried out wherein in accordance with an embodiment of the present disclosure logical Believe environment map.

Fig. 2 schematically shows the stream of the method for being used to communicate in accordance with an embodiment of the present disclosure Cheng Tu.

Fig. 3 schematically shows the method for being used to communicate according to another embodiment of the present disclosure Flow chart.

Fig. 4 schematically show in accordance with an embodiment of the present disclosure base station and user equipment it Between signaling interaction diagram.

Fig. 5 is schematically shown to be set according to another embodiment of the present disclosure in base station with user Signaling interaction diagram between standby.

Fig. 6 schematically show in accordance with an embodiment of the present disclosure specific UL/DL configuration Under initial transmission and re-transmission between graph of a relation.

Fig. 7 schematically show in accordance with an embodiment of the present disclosure in another specific UL/DL The graph of a relation between initial transmission and re-transmission under configuration.

Fig. 8 is schematically shown to be set according to another embodiment of the present disclosure in base station with user Signaling interaction diagram between standby.

Fig. 9 schematically shows the stream of the method for being used to communicate in accordance with an embodiment of the present disclosure Cheng Tu.

Figure 10 schematically shows the side for being used to communicate according to another embodiment of the present disclosure The flow chart of method.

The UL that Figure 11 schematically shows in accordance with an embodiment of the present disclosure is authorized Timing relation figure between ACK/NACK transmission.

Figure 12 schematically show embodiment in accordance with an embodiment of the present disclosure be used for communicate Device block diagram.

Figure 13 schematically shows being used for for another embodiment in accordance with an embodiment of the present disclosure The block diagram of the device of communication.

Figure 14 schematically shows being used for for another embodiment in accordance with an embodiment of the present disclosure The block diagram of the device of communication.

Figure 15 schematically shows being used for for another embodiment in accordance with an embodiment of the present disclosure The block diagram of the device of communication.

Embodiment

Some exemplary embodiments shown in below with reference to the accompanying drawings describe the disclosure Principle and spirit.It should be appreciated that describing these specific embodiments merely to making this area Technical staff better understood when and realize the disclosure, and not limit this public affairs in any way The scope opened.

Fig. 1 schematically shows can be carried out wherein in accordance with an embodiment of the present disclosure logical Believe environment map 100.As shown in Figure 1, in a kind of exemplary wireless communications environment, Base station 105 can be communicated by cellular communication with user equipment 110,120 etc..Example Such as, embodiment of the disclosure can be applied in radio communication scene as depicted in figure 1.

In embodiment of the disclosure, term " user equipment " (UE) is to refer to and BS Any equipment of communication.As an example, user equipment can include terminal, mobile terminal (MT), Subscriber stations (SS), portable subscriber platform (PSS), mobile station (MS) or access terminal (AT). " base station " (BS) can represent node B (NodeB or NB), enode b (eNodeB Or eNB), remote radio unit (RRU), radio-frequency maser (RH), far end radio frequency head (RRH), repeater, low power nodes, femto base station, femto base station etc..

As mentioned before, for TDD, HARQ timing relationships are returned Because of the intrinsic discontinuous transmission in downlink DL and up-link UL relative to FDD For it is more complicated.For TDD operation, received in some HARQ procedure data with Time relationship between the transmission that HARQ confirms is configured depending on UL/DL.In TTI length In the case of shortening, new HARQ timings should be designed to TDD DL and Both UL are further to reduce time delay.

The DL HARQ timings shortened for the TTI in TDD system are had studied at present Relevant the problem of, and correspondingly propose some solutions.Different from using asynchronous mechanism as The DL HARQ timings on basis, synchronous agreement is employed for UL HARQ timings.To the greatest extent Pipe signaling consumption for synchronous HARQ can be reduced, but will negatively influence weight Pass the flexibility in scheduling.

These factors are all accounted for, in embodiment of the disclosure, research is focused on and is directed to The UL HARQ timing relevant issues that TTI in TDD system shortens, and propose correspondingly Propose some solutions.However, it should be noted that the embodiment of present disclosure can be answered Use in other wireless communications environments.

According to current specification, the UL HARQ timings in TDD are synchronous, it means that Retransmit the set time occurred after forward pass.In this case, following two processes are determined When relation should be considered together.The first timing relationship is：Physical downlink control channel PDCCH/ physical mixeds autonomous retransmission indicator channel PHICH and corresponding physical uplink chain Timing relationship between the shared channel PUSCH transmission of road, it is relevant with the transmission that UL is authorized. Another timing relationship is：Timing relationship between PUSCH transmission and corresponding PHICH, It is relevant with the transmission of ACK/NACK information.

It is existing to there are two kinds of agreements of synchronous protocol and asynchronous protocol on both timing relationships. For synchronous protocol, signaling consumption will be reduced, because mixing need not explicitly be sent ARQ processes are numbered, and this information can be exported from subframe number.On the other hand, asynchronous association View allow for the bigger flexibility of retransfer scheduling.But, these agreements of prior art are for example Some problems are still had in the scene that TTI shortens.

Currently, described in radio communication specification based on having for both FDD and TDD The normal TTI of 1ms duration HARQ timings.DL and UL HARQ in TDD Both timing is defined with good grounds TDD UL/DL configurations and is associated with some of subframe number n Index of set.At present, in the absence of for the TDD system having less than 1ms TTI length The existing solution of HARQ timings.Can not be direct for 1ms TTI Present solutions Ground is used to consider in the shorter TTI that time delay reduces requirement.

In embodiment of the disclosure, it first proposed a kind of asynchronous HARQ solutions and use To improve the dispatching flexibility retransmitted, this is important for the switching of dynamic TTI length.In addition, A kind of synchronization of mixing-asynchronous UL HARQ strategies are proposed, wherein further according to considering Time delay reduces the configuration of desired base station, in combination using synchronization solutions and asynchronous solution party Case.Embodiment of the disclosure can realize that propagation delay time is reduced between PDCCH signaling consumptions Compromise.Moreover, embodiments of the invention propose a kind of enhanced synchronous UL HARQ solutions Certainly scheme is to support some DL subframes to be used to transmit more than two UL subframe The situation of ACK/NACK information.For example, special subframe can be used to support PUSCH transmission.

As it was noted above, current UL HARQ timing mechanisms are based on synchronous HARQ protocol And be designed, wherein retransmitting the set time occurred after forward pass.Benefit is need not be explicit Ground sends HARQ processes numbering, because this information can be exported from subframe number, and Signaling consumption can be correspondingly reduced.On the other hand, asynchronous HARQ protocol allows weight The bigger flexibility in scheduling is passed, this by combined dispatching initial transmission and re-transmission for improving Spectrum efficiency is valuable.If in addition, TTI length can be semi-static or dynamically changed Become, then the flexibility retransmitted will become more valuable.For example, TTI length from 1ms to During 0.5ms switch period, more frequency domain resources should be allocated for retransmitting, because Time-domain resource is halved.In this case, re-transmission will jointly be adjusted together with initial transmission Degree, requirement that adaptive HARQ.If it is readily apparent that do not had in the set time There are enough frequency domain resources, then retransmit and both initial transmission will negatively be affected.Therefore, The retransfer scheduling with bigger flexibility is needed, and asynchronous UL HARQ timing mechanisms can It can therefore be a kind of selection well.

For synchronous UL HARQ, the set time occurred after forward pass is retransmitted, this meaning Taste UL and authorizes scheduling to be fixed with the ACK/NACK timing relationships for feeding back both. However, for asynchronous mechanism, the timing relationship that UL is authorized and/or ACK/NACK feeds back Can dynamically it be changed.Therefore, for asynchronous UL HARQ, it is understood that there may be following Three kinds of situations.

In the first scenario, the timing relationship that UL is authorized is fixed, and is used for The timing relationship of ACK/NACK feedbacks is dynamic.In this case, PDCCH (UL Authorize) timing relationship between/PHICH and corresponding PUSCH transmission be it is fixed, i.e., such as Fruit user equipment receives PDCCH or PHICH in subframe n, then it is in subframe n+k₂ The corresponding PUSCH of middle transmission, wherein at user equipment can by search for predetermined table come Obtain k₂Value.On the other hand, the timed-shutoff between PUSCH transmission and corresponding PHICH System can dynamically be changed, it means that if receiving PHICH in subframe n, this Individual PHICH corresponds to UL subframe n-k₁The PUSCH of middle transmission, wherein k₁Value be variable 's.

In the latter case, the timing relationship of ACK/NACK feedbacks is fixed, and is used In UL authorize timing relationship be dynamic.In this case, PUSCH transmission with it is corresponding PHICH between timing relationship be fixed.If that is, user equipment is in subframe n In receive PHICH, then this PHICH correspond to UL subframe n-k₁Middle transmission PUSCH, wherein at user equipment k can be obtained by searching for predetermined table₁Value. On the other hand, PDCCH (UL mandates) is between/PHICH and corresponding PUSCH transmission Timing relationship can be dynamically changed.If it means that user equipment connects in subframe n PDCCH or PHICH is received, then it is in subframe n+k₂It is middle to transmit corresponding PUSCH, its Middle k₂Value be variable.

In a third case, UL is authorized and ACK/NACK feeds back the timing relationship of both All it is dynamic.In this case, not only PDCCH (UL mandates)/PHICH with it is right Timing relationship between the PUSCH transmission answered is variable.Moreover, PUSCH transmission with it is right Timing relationship between the PHICH answered can be dynamically changed.It means that " n-k₁” In k₁" n-k₂" in k₂It is both variable.

For all these situations, three below condition should be satisfied.Condition one, UL is awarded Power will be used always, because the time retransmitted between forward pass is not fixed.Condition two, In the case of there may be multiple HARQ processes in a frame, HARQ process IDs should User equipment is explicitly sent to, because it simply can no longer be exported from subframe number.Condition Three, k₁And k₂Value should be sent to user equipment because they can not be as in Current specifications Obtained like that by searching for form.

Embodiment according to present disclosure is described with reference to Fig. 2-5.Fig. 2 is schematically Show the flow chart of the method 200 for being used to communicate in accordance with an embodiment of the present disclosure.At some In embodiment, the main body of execution method 200 is the base station communicated with user equipment.Another In some embodiments, method 200 can be as being used for what is communicated described by later in conjunction with Figure 12 Device 1200 is performed.

As shown in Figure 2, method 200 can include step 201 and step 202. In step 201, in base station, received in the first uplink sub-frames from user equipment Up-link is transmitted.It will be understood to those skilled in the art that when base station is received from user equipment To after up-link transmission, it may be necessary to user equipment in follow-up downlink subframe Feedback message is sent, is connect so that whether the up-link transmission of notifying user equipment this time is successful Receive.

Then, in step 202., transmitted in response to receiving the up-link, base station can The feedback transmitted with being sent in downlink subframe for the up-link and with it is described anti- The associated configured information of feedback, the configured information indicates targeted described first of the feedback Uplink sub-frames and the second uplink of the potential re-transmission transmitted for the up-link Way frame.

In certain embodiments, the configured information can include：The downlink subframe The first difference between numbering and the numbering of first uplink sub-frames, and described second The second difference between the numbering and the numbering of the downlink subframe of uplink sub-frames.Root According to the two differences, user equipment can be according to the downlink for receiving base station transmission feedback Subframe determines which uplink sub-frames is the feedback be directed to, and can determine that it should Which retransmitted on uplink sub-frames.

In certain embodiments, methods described can also include：Send further configured information To indicate that the user equipment updates the first difference and the second difference.In these embodiments, base New configured information can be sent to indicate to be updated by base station to user equipment to user equipment by standing The first difference and the second difference, it is achieved thereby that asynchronous HARQ transmission process, realize Dynamic to the first difference and second difference is adjusted.Therefore, in these embodiments, it is described Method can also include：First difference is dynamically determined and described second poor by the base station At least one in value.

In certain embodiments, the first difference and the second difference can be sent via UL mandates Occurrence.In certain embodiments, first difference and the second difference can be by predetermined collection Call number in conjunction is represented.For TDD specifications, the first difference and the second difference it is specific Value can be predefined as candidate's predetermined set of HARQ timings.Based on this consideration, enter One step propose send index in each set of the first difference and the second difference rather than it Absolute figure, wherein base station and user equipment both know in advance these gather.With this The mode of kind, can further reduce signaling consumption.

In certain embodiments, the feedback can include mixed automatic repeat request HARQ Feedback, and the configured information can include the Process identifier of the HARQ.At certain In the case of a little, user equipment just knows that the first difference and the second difference can't determine base station institute The feedback of transmission is which HARQ procedure being directed to.In such cases, base station can be by HARQ procedure ID is explicitly sent to user equipment.

If in view of HARQ process IDs and k₁And k₂Value be added in PHICH PHICH expense will be significantly increased, embodiment of the disclosure is proposed awards via UL Weigh to send HARQ process IDs and k₁And k₂Value.Therefore, in certain embodiments, Sending the feedback and the configured information can include：Sent out via uplink grant message Send the feedback and the configured information.In this case, it is no longer necessary to PHICH.At this In a little embodiments, the feedback is sent via uplink grant message to be included：Send The uplink grant message is to be used as negative feedback.In these embodiments, due to UL (PDCCH) is authorized will to be always employed for asynchronous HARQ, so it can be used It is used as a kind of nack message.

Fig. 3 schematically shows the method for being used to communicate according to another embodiment of the present disclosure 300 flow chart.In certain embodiments, the main body of execution method 300 is carried out with base station The user equipment of communication.In further embodiments, method 300 can be by later in conjunction with Figure 13 Described is used to the device 1300 of communication perform.

As shown in Figure 3, method 300 can include step 301,302 and 303. In step 301, user equipment can from base station receive for up-link transmit feedback and with The associated configured information of the feedback.Then, in step 302, user equipment can be with base In on first where the configured information determines the targeted up-link transmission of the feedback Uplink subframe.In step 303, user equipment can determine to use based on the configured information Second uplink sub-frames of the potential re-transmission transmitted in the up-link

In certain embodiments, methods described can also include：In response to from base station receive into The configured information of one step, updated first included based on the further configured information Difference and the second difference determine first uplink sub-frames and second up-link Subframe.According to the two differences, user equipment can send being somebody's turn to do for feedback according to base station is received Downlink subframe determines which uplink sub-frames is the feedback be directed to, and can determine Going out it should be retransmitted on which uplink sub-frames.

In certain embodiments, at least one in first difference and second difference can Dynamically to be specified by the base station.In these embodiments, base station can be sent out to user equipment Send new configured information poor come the first difference and second updated to user equipment instruction by base station Value, it is achieved thereby that asynchronous HARQ transmission process, is realized to the first difference and second The dynamic adjustment of difference.

In certain embodiments, methods described can also include：It is described further receiving Before configured information, without further uplink retransmission.These embodiments correspond to pure Asynchronous HARQ transmission process, wherein user equipment are unless received the instruction from base station Information, otherwise without uplink retransmission next time.

In certain embodiments, methods described can also include：It is described further receiving Before configured information, holding is carried out further using first difference and second difference Up-link transmission.These embodiments are passed corresponding to asynchronous with synchronous hybrid HARQ Defeated process, if wherein before the configured information from base station is not received by, user equipment Continue to set the HARQ transmission synchronized according to last HARQ.

If in view of HARQ process IDs and k₁And k₂Value be added in PHICH PHICH expense will be significantly increased, embodiment of the disclosure is proposed awards via UL Weigh to send HARQ process IDs and k₁And k₂Value.Therefore, in certain embodiments, This method can also include：The feedback and the finger are received via uplink grant message Show information.In these embodiments, the feedback is received via uplink grant message can With including：In response to receiving the uplink grant message, by the uplink grant Message is defined as negative feedback.In these embodiments, because UL authorizes (PDCCH) will Asynchronous HARQ is always employed for, so it can be normally used as a kind of NACK letters Breath.In this case, it is no longer necessary to PHICH.

Fig. 4 schematically shows being set in base station 410 with user in accordance with an embodiment of the present disclosure Signaling interaction diagram 400 between standby 420.As shown in Figure 4, in step 401, User equipment 420 physically can be sent out on Uplink Control Channel PUCCH to base station 410 Send dispatch request.In step 402, base station 410 can be in physical downlink control channel PDCCH is upper to be sent for physical uplink link shared channels PUSCH's to user equipment 420 UL is authorized.Then, in step 403, user equipment 420 can be on PUSCH to base Stand 410 send initial transmissions.In step 404, base station 410 can be to user equipment 420 Send further UL to authorize, the UL, which is authorized, can be used as the NACK for initial transmission Feedback, and can be with the targeted HARQ process IDs of the feedback, and send k₁(the One difference) and k₂The occurrence of (the second difference).Finally, in step 405, Yong Hushe Standby 420 UL that can be in step 404 sent according to base station 410 authorize carried information To be retransmitted.

In addition, for TDD specifications, k₁And k₂Value can be predefined as HARQ timing Candidate's predetermined set.For example, in a kind of specific predetermined set, k₁Can using value as 4, 5th, 6,7 or 11, i.e. k₁∈ 4,5,6,7,11, and k₂Can using value as 4,5,6 or 7, That is k₂∈{4,5,6,7}.In these predetermined sets, wherein corresponding transmission/re-transmission is limited to spy Fixed UL TTI.Based on this consideration, embodiment of the disclosure further provides transmission k₁ And k₂Index rather than their absolute figure in each set, wherein base station and user is set It is standby both to know that these are gathered in advance.By this way, 3 bits and 2 are only needed to compare respectively Spy sends k₁And k₂Index.For this embodiment, if directly transmitting k1 and k2 Value be then respectively necessary for 4 bits and 3 bits, but if feedback k1 and k2 index then distinguish Only need 3 bits and 2 bits.Obviously, This further reduces signaling consumption.

Fig. 5 schematically shows being set in base station 510 with user in accordance with an embodiment of the present disclosure Signaling interaction diagram 500 between standby 520.As shown in Figure 5, step 501-505 with Step 401-405 in Fig. 4 is similar, and here is omitted.During illustrated in fig. 5, In step 504, k is not retransmited₁And k₂Occurrence, but send them in predetermined collection Call number in conjunction represents them.

The solution proposed using embodiment of the disclosure, it would be preferable to support asynchronous HARQ For the TDD UL with short TTI, and the scheduling retransmitted becomes more flexibly, because weight The time passed between forward pass is not fixed.Therefore, the collision between initial transmission is retransmitted It will be reduced, for having a case that dynamic TTI length switches.

Further, different from completely asynchronous UL HARQ strategies, in the implementation of the disclosure In example, it is also proposed that hybrid synchronization-asynchronous UL that a kind of TTI being used in TDD shortens HARQ strategies.

As described previously, in synchronous HARQ scheme, wherein corresponding re-transmission is with solid Fix time generation, it is determined by initial transmission in which UL subframe.Asynchronous In the new solution of UL HARQ strategies, all UL data transfers are whether just passed Or retransmit, should all be dispatched by UL mandates, no matter correspondence transmission is adaptive goes back It is non-self-adapting.I.e., it has no PDCCH, user equipment will keep it is silent and Transmitted without UL.

Respectively there are advantage and disadvantage in view of synchronous HARQ and asynchronous UL HARQ strategies, the disclosure Embodiment proposes hybrid synchronization-asynchronous UL HARQ transmission strategies, the master of the transmission strategy It is to realize the compromise that propagation delay time is reduced between DL PDCCH signaling consumptions to want motivation.Root Configured according to different TDD, based on synchronous UL HARQ strategies, there are at least two types UL subframe.One embodiment according to the disclosure is specifically described with reference to Fig. 6-8 Hybrid synchronization-asynchronous HARQ transmission scheme.

Fig. 6 schematically show in accordance with an embodiment of the present disclosure specific UL/DL configuration Under initial transmission and re-transmission between graph of a relation 600.As shown in Figure 6, initial Transmission the 601 and the 1st is retransmitted in the 602 and the 2nd relation of type one retransmitted between 603, UL Subframe and its corresponding re-transmission UL subframe are closer to each other, as shown in Fig. 6 The situation of the UL subframe numbering 4 of UL/DL configurations.

For the UL subframe of type one, retransmitted even with asynchronous UL HARQ, there is also Time delay is further reduced in seldom space.If in addition, using asynchronous UL HARQ strategy, If re-transmission is not adaptive, the PDCCH expenses of redundancy will be caused.That is, Pure asynchronous UL HARQ strategies will cause big PDCCH expenses, but be reduced for time delay Do not help.

Fig. 7 schematically show in accordance with an embodiment of the present disclosure in another specific UL/DL The graph of a relation 700 between initial transmission and re-transmission under configuration.As shown in Figure 7, exist Initial transmission 701 and the 1st is retransmitted in the 702 and the 2nd relation of type two retransmitted between 703, UL subframe and its corresponding re-transmission UL subframe are remote, and this is probably because many is in preceding UL Frame application is used to correspondence re-transmission of the processing for other HARQ processes.For example, such as Fig. 7 Shown in UL/DL configuration subframe number 8, for its numbering be wireless the 704 of #n In initial transmission, the 1st retransmit the 702 and the 2nd retransmit 703 respectively be located at numbering be n+1's In the radio frames 706 that radio frames 705 and numbering are n+2.

For the UL subframe of Second Type, if can use in the presence of UL subframe earlier, then make When changing and (shift to an earlier date) its potential UL HARQ re-transmissions with adaptive UL HARQ strategies Machine is more preferable.That is, PDCCH can be used in advance, UL HARQ processes are simultaneously And help to shorten propagation delay time.

It will be understood that, embodiment discussed above has substantially comprised a kind of hybrid synchronization-different Walk UL HARQ strategies.According to these embodiments, baseline is synchronous UL HARQ transmissions, The re-transmission of wherein each UL subframe is predefined.If that is, do not received from base station To any control signaling, then user equipment by for its potential re-transmission according to predefined principle To be acted.On the other hand, if receiving PDCCH, user equipment will carry out adaptive Answer and asynchronous UL HARQ are retransmitted.So scheduled adaptive retransmission will be corresponding UL HARQ processes determine new UL HARQ timelines, and it depends on its previous re-transmission Wherein it is scheduled.

Fig. 8 is schematically shown to be set according to another embodiment of the present disclosure in base station with user Signaling interaction diagram 800 between standby.As shown in Figure 8, in step 801, base station 810 can be on physical downlink control channel PDCCH to the transmission use of user equipment 820 Authorized in physical uplink link shared channels PUSCH UL.Then, in step 802, User equipment 820 can be on PUSCH to the transmission of base station 810 initial transmission.In step 803 In, base station 810 can send PHICH to user equipment 820 is to indicate the initial transmission No success is received, and this transmission can be authorized with or without UL as the case may be. In step 804, if base station indicates that initial transmission is received not successfully, user equipment 820 It can send and retransmit to base station 810 on PUSCH.Step 801-804 belongs to the same of acquiescence Walk HARQ transmission process 830.

At step 805, as shown by frame 850, base station 810 can be determined according to UL The new HARQ relations that subframe number is retransmitted will be based on scheduling.Therefore, base station 810 to User equipment 820 sends the UL with HARQ process IDs and new timing and authorized.In step In 806, HARQ process IDs and Xin Ding that user equipment 820 can be according to transmitted by base station When retransmitted on PUSCH.Step 805 and 806 belongs to asynchronous HARQ transmission process 840。

Then, in step 807, base station 810 can be according to synchronous HARQ transmitting procedure Come but send PHICH to user equipment 820 using new timing, this transmission can root Authorized according to specific transmission situation with or without UL.In step 808, user equipment 820 can still use new timing according to synchronous HARQ transmitting procedure, in PUSCH On to base station 810 send retransmit.Step 807 and 808 belongs to the synchronous HARQ with new timing Process 860.

During follow-up, as shown in frame 870, base station 810 and user equipment 820 can be similar to the similar synchronous HARQ of the progress of process 830,840,860 and asynchronous Replaced among HARQ transmission process.

If had the ability to anticipate benefit for example, reducing viewpoint from time delay, base station will be (all to signaling Such as PDCCH) it is controlled to dynamically change the potential re-transmission for specific HARQ process Timeline.In this case, HARQ re-transmission is dispatched in base station by PDCCH is sent, So as to which user equipment will carry out corresponding HARQ re-transmissions ahead of time, for example, by synchronous UL In UL subframe before UL subframe determined by HARQ scheme.If necessary to further HARQ is retransmitted, then determines timeline according to the scheduled UL subframe of previous re-transmission, and Do not consider that initial transmission is wherein scheduled.That is, for further re-transmission, even if PDCCH is not received by, user equipment will still carry out re-transmission, but be retransmitted according to previous The new timeline of scheduled UL subframe.

For the re-transmission of specific initial transmission, if determined by acquiescence synchronization solutions UL subframe before there is no available UL subframe, then be continuing with existing synchronous solution party Case.If there are some UL before the UL subframe determined by acquiescence synchronization solutions Frame can be used based on scheduling, then base station will send PDCCH to user equipment to use Asynchronous solution.In this case, HARQ timings are by by retransmitting UL occurred The numbering of frame is redefined, rather than using determined by the prior synchronization solution previously Relation.Once new HARQ timing relationships are determined, user equipment will just use the new pass It is until it receives the PDCCH that changes to asynchronous HARQ.Remainder can be with Identical mode is carried out.

For this new UL HARQ transmission strategies, base station is shifted to an earlier date using DL PDCCH Potential to retransmit, if be allowed, this is contributed to shortening propagation delay time.User equipment will Automatically obey synchronous HARQ strategy to determine its ensuing re-transmission time line, according to preceding It is secondary to retransmit rather than consider that its initial transmission is wherein scheduled.Even if that is, not having PDCCH is received, user equipment will also proceed to retransmit, and this is different from pure asynchronous HARQ Strategy.Its ensuing potential re-transmission time line occurs to determine by its previous re-transmission, and And not considering its initial transmission situation, this is also different from pure synchronous UL HARQ strategies.

Embodiment of the disclosure also proposed a kind of the enhanced of TTI shortenings being used in TDD Synchronous UL HARQ timing solutions.Specifically, PUSCH transmission can be in special son Carried out in frame (special subframe).Therefore, UL can support the PUSCH in special subframe Transmission.DwPTS and 2 OFDM symbol with 6 OFDM symbols can be supported GP special subframe in PUSCH transmission.This maintain with old user equipment to It is compatible afterwards.In view of this, if TTI length is shortened to 0.5ms from 1ms, and Special subframe is used to transmit PUSCH, then some DL subframes may be used to transmission more than two The ACK/NACK information of individual UL subframe.Especially for the heavy TDD DL/UL of UL For configuration (for example, with set to 0), this scheme that can not be provided by existing specification is realized.

In order to solve the above problems, embodiment of the disclosure also proposed as shown in Figure 9 be used for The flow chart 900 of the method for communication.In certain embodiments, the main body of execution method 900 is The base station communicated with user equipment.In further embodiments, method 900 can be by slightly The device 1400 described in conjunction with Figure 14 for being used to communicate is performed afterwards.

Fig. 9 schematically shows the stream of the method for being used to communicate in accordance with an embodiment of the present disclosure Journey Figure 90 0.In certain embodiments, the main body of execution method 900 is carried out with user equipment The base station of communication.In further embodiments, method 900 can be by later in conjunction with Figure 14 institutes What is described is used to the device 1400 of communication perform.

As shown in Figure 9, step 901,902 can be included for communication means 900 With 903.In step 901, base station is received accordingly at least three uplink sub-frames Up-link is transmitted.Then, in step 902, base station will be used to distinguish described at least three The differentiation information of uplink sub-frames is included in the phase transmitted for corresponding up-link In the feedback answered.In step 903, base station sends described in identical downlink subframe Corresponding feedback.

In certain embodiments, the feedback includes mixed automatic repeat request HARQ feedback. In certain embodiments, the different values for distinguishing Information Pull Bit String represent it is described extremely Few three uplink sub-frames.In certain embodiments, the length of the Bit String by it is described extremely Lack the number of three uplink sub-frames to determine.In certain embodiments, described at least three Uplink sub-frames include three uplink sub-frames, and the length of the Bit String can be Two bits.In certain embodiments, the uplink sub-frames and the downlink subframe In at least one include special subframe.

Figure 10 schematically shows the side for being used to communicate according to another embodiment of the present disclosure The flow chart 1000 of method.In certain embodiments, the main body of execution method 1000 is and base station The user equipment communicated.In further embodiments, method 1000 can be tied by later The device 1500 for being used to communicate described by Figure 15 is closed to perform.

As shown in Figure 10, for communication means 900 can include step 1001 and 1002.In step 1001, user equipment receives feedback in downlink subframe.Then, In step 1002, user equipment is determined described anti-based on the differentiation information in the feedback Feedback is directed to the up-link transmission in which uplink sub-frames, wherein the differentiation information is used for Distinguish at least three uplink sub-frames.

In certain embodiments, the feedback can include mixed automatic repeat request HARQ Feedback.In certain embodiments, it is described differentiation information can using the different values of Bit String come Represent at least three uplink sub-frames.In certain embodiments, the length of the Bit String Degree can be determined by the number of at least three uplink sub-frames.In some embodiments In, at least three uplink sub-frames can include three uplink sub-frames, and institute The length for stating Bit String can be two bits.In certain embodiments, the UL subframe At least one in frame and the downlink subframe can include special subframe.

A kind of specific UL/DL configurations are based on reference to Figure 11 to describe to be used for TDD In TTI shorten enhanced synchronous UL HARQ timing solutions.Figure 11 is schematic The UL that ground shows in accordance with an embodiment of the present disclosure is authorized between ACK/NACK transmission Timing relation figure.It should be appreciated that Figure 11 depicts a kind of specific embodiment of the disclosure, this Disclosed embodiment can also include other timing relation figures.

As shown in Figure 11, the subframe that numbering 0-19 20 TTI shorten is depicted, Wherein D represents that downlink subframe, U represent uplink sub-frames, S_dAnd S_uRepresent respectively Special downlink subframe and special uplink sub-frames.In fig. 11, the arrow table of lower section Show on the timing relationship between PDCCH/PHICH and corresponding PUSCH transmission, arrow Numeral represents k₁Value, the arrow of top represent PUSCH transmission and corresponding PHICH it Between timing relationship, the numeral on arrow represents k₂Value.Zone circle pointed by frame 1101 is compiled Numbers 2 subframe S_d3 UL subframes of transmission are respectively used to the subframe D of numbering 10 ACK/NACK information., can be by order to distinguish the PHICH for corresponding to different UL subframes Existing field I_PHICH2 bits (00,01,10,11) are expanded to from 1 bit (0,1).This The embodiment of disclosure can be as follows with concrete operations.

For downlink subframe #0, its up to 2 uplink sub-frames of transmission ACK/NACK.If user equipment is received on subframe #0 with value I_PHICH=" 00 " PHICH, then the PHICH correspond to the PUSCH that transmits on the subframe #9 of former frame, Timing relationship with present sub-frame is n-11.If user equipment receives tool on subframe #0 There is value I_PHICHThe PHICH of=" 01 ", then the PHICH correspond to former frame subframe #13 The PUSCH of upper transmission, the timing relationship with present sub-frame is n-7.

For downlink subframe #1, its up to 2 uplink sub-frames of transmission ACK/NACK.If user equipment is received on subframe #1 with value I_PHICH=" 00 " PHICH, then the PHICH correspond to the PUSCH that transmits on the subframe #14 of former frame, Timing relationship with present sub-frame is n-7.If user equipment is received on subframe #1 to be had Value I_PHICHThe PHICH of=" 01 ", then the PHICH is corresponding on the subframe #15 of former frame The PUSCH of transmission, the timing relationship with present sub-frame is n-6.

For S_dDownlink subframe #2, its up to 3 uplink sub-frames of transmission ACK/NACK.If user equipment is received on subframe #2 with value I_PHICH=" 00 " PHICH, then the PHICH correspond to the PUSCH that transmits on the subframe #16 of former frame, Timing relationship with present sub-frame is n-6.If user equipment is received on subframe #2 to be had Value I_PHICHThe PHICH of=" 01 ", then the PHICH is corresponding on the subframe #17 of former frame The PUSCH of transmission, the timing relationship with present sub-frame is n-5.If user equipment is in subframe Received on #2 with value I_PHICHThe PHICH of=" 10 ", then the PHICH is corresponding to previous The PUSCH transmitted on the subframe #18 of frame, the timing relationship with present sub-frame is n-4.

For downlink subframe #10, its up to 3 uplink sub-frames of transmission ACK/NACK.If user equipment is received on subframe #10 with value I_PHICH=" 00 " PHICH, then the PHICH correspond to the PUSCH that transmits on the subframe #19 of former frame, Timing relationship with present sub-frame is n-11.If user equipment receives tool on subframe #10 There is value I_PHICHThe PHICH of=" 01 ", then the PHICH is corresponding on the subframe #3 of present frame The PUSCH of transmission, the timing relationship with present sub-frame is n-7.If user equipment is in subframe Received on #10 with value I_PHICHThe PHICH of=" 10 ", then the PHICH, which corresponds to, works as The PUSCH transmitted on the subframe #4 of previous frame, the timing relationship with present sub-frame is n-6.

For downlink subframe #11, its up to 2 uplink sub-frames of transmission ACK/NACK.If user equipment is received on subframe #11 with value I_PHICH=" 00 " PHICH, then the PHICH correspond to the PUSCH that transmits on the subframe #5 of present frame, Timing relationship with present sub-frame is n-6.If user equipment receives tool on subframe #11 There is value I_PHICHThe PHICH of=" 01 ", then the PHICH is corresponding on the subframe #6 of present frame The PUSCH of transmission, the timing relationship with present sub-frame is n-5.

For downlink subframe #12, its up to 2 uplink sub-frames of transmission ACK/NACK.If user equipment is received on subframe #12 with value I_PHICH=" 00 " PHICH, then the PHICH correspond to the PUSCH that transmits on the subframe #7 of present frame, Timing relationship with present sub-frame is n-5.If user equipment is received on subframe #8 to be had Value I_PHICHThe PHICH of=" 01 ", then subframe #6 uploads of the PHICH corresponding to present frame Defeated PUSCH, the timing relationship with present sub-frame is n-4.

Proposed solution is used, it is being received in identical DL subframe from different UL Therefore the corresponding PHICH of frame can be distinguished.If it is worth noting that, TTI length Further shortened to 3/4,2, even 1 OFDM symbol, in identical DL subframe The PHICH of upper reception may correspond to more UL subframes.In this case, field I_PHICH More bits should be taken.Required bit number n is by PHICH in identical DL The UL subframe M transmitted on frame maximum number is determined：WhereinRepresent Smallest positive integral more than x.I_PHICHMapping relations with multiple UL subframes are, n 0 couple Should be in needing the temporally row in the UL subframe by the DL subframe feeding back ACK/NACK 1st UL subframe of sequence, n-bit string lowest order is that 1 remaining position is 0 logical corresponding to needing The according to time sequence the 2nd crossed in the UL subframe of the DL subframe feeding back ACK/NACK UL subframe, the rest may be inferred.

Figure 12 schematically shows the device for being used to communicate in accordance with an embodiment of the present disclosure 1200 block diagram.It will be understood to those skilled in the art that illustrate only device 1200 in Figure 12 In the unit or component that are closely related with the disclosure, in specific practice, device 1200 Can include can normal operating other functional units or component.In addition, in Figure 12 There may be necessary annexation between shown unit or component, but be in order at letter These annexations are not depicted in clean consideration, Figure 12.Dotted line frame is used in Figure 12 To represent optional unit or component.In certain embodiments, device 1200 can include base Stand.

As shown in Figure 12, the device 1200 for communication includes receiving unit 1201 With transmitting element 1202.Receiving unit 1201 is configured as connecing in the first uplink sub-frames Receive the up-link transmission from user equipment.Transmitting element 1202 is configured to respond to connect The up-link transmission is received, sends and is passed for the up-link in downlink subframe Defeated feedback and the configured information associated with the feedback, the configured information indicate described anti- Targeted first uplink sub-frames of feedback and diving for up-link transmission In the second uplink sub-frames of re-transmission.

In certain embodiments, transmitting element 1202 can be additionally configured to send further Configured information is to indicate that the user equipment updates the first difference and the second difference.In some implementations In example, first difference and the second difference can be represented by the call number in predetermined set. In certain embodiments, the device 1200 for communication can also include determining unit 1203. Determining unit 1203 can be configured as dynamically determining first difference and described second poor At least one in value.

In certain embodiments, the feedback can include mixed automatic repeat request HARQ Feedback, and the configured information can include the Process identifier of the HARQ.One In a little embodiments, transmitting element 1202 can be additionally configured to via uplink grant message To send the feedback and the configured information.In certain embodiments, transmitting element 1202 It can be additionally configured to send the uplink grant message to be used as negative feedback.

Figure 13 schematically shows the device for being used to communicate in accordance with an embodiment of the present disclosure 1300 block diagram.It will be understood to those skilled in the art that illustrate only device 1300 in Figure 13 In the unit or component that are closely related with the disclosure, in specific practice, device 1300 Can include can normal operating other functional units or component.In addition, in Figure 13 There may be necessary annexation between shown unit or component, but be in order at letter These annexations are not depicted in clean consideration, Figure 13.Dotted line frame is used in Figure 13 To represent optional unit or component.In certain embodiments, device 1300 can include using Family equipment.

As shown in Figure 13, for communication device 1300 include receiving unit 1301, First determining unit 1302 and the second determining unit 1303.Receiving unit 1301 is configured To receive the feedback transmitted for up-link and the instruction associated with the feedback from base station Information.First determining unit 1302 is configured as determining the feedback based on the configured information The first uplink sub-frames where targeted up-link transmission.Second determining unit 1303 It is configured as determining the potential re-transmission for up-link transmission based on the configured information The second uplink sub-frames.

In certain embodiments, the first determining unit 1302 and the second determining unit 1303 may be used also To be configured as：In response to receiving further configured information from base station, based on it is described enter one The the first updated difference and the second difference that the configured information of step includes determine described One uplink sub-frames and second uplink sub-frames.

In certain embodiments, the device 1300 for communication can also include transmission unit 1304.Transmission unit 1304 is configured as before the further configured information is received, Without further uplink retransmission.In further embodiments, transmission unit 1304 It can be configured as before the further configured information is received, keep using described the One difference and second difference carry out further up-link transmission.

In certain embodiments, first difference and second difference can be by predetermined sets In call number represent.In certain embodiments, first difference and second difference In at least one can dynamically be specified by the base station.In certain embodiments, it is described anti- Feedback can include mixed automatic repeat request HARQ feedback, and the configured information can be with Include the Process identifier of the HARQ.In certain embodiments, receiving unit 1301 is gone back It can be configured as receiving the feedback and the instruction letter via uplink grant message Breath.In certain embodiments, receiving unit 1301 can be additionally configured in response to receiving The uplink grant message, negative feedback is defined as by the uplink grant message.

Figure 14 schematically shows the device for being used to communicate in accordance with an embodiment of the present disclosure 1400 block diagram.It will be understood to those skilled in the art that illustrate only device 1400 in Figure 14 In the unit or component that are closely related with the disclosure, in specific practice, device 1400 Can include can normal operating other functional units or component.In addition, in Figure 14 There may be necessary annexation between shown unit or component, but be in order at letter These annexations are not depicted in clean consideration, Figure 14.In certain embodiments, Device 1400 can include base station.

As shown in Figure 14, for communication device 1400 include receiving unit 1401, Setting unit 1402 and transmitting element 1403.Receiving unit 1401 is configured as at least Corresponding up-link transmission is received in three uplink sub-frames.Setting unit 1402 by with Be set to by for distinguish at least three uplink sub-frames differentiation information include for In the corresponding feedback of corresponding up-link transmission.Transmitting element 1403 is configured as Corresponding feedback is sent in identical downlink subframe.

Figure 15 schematically shows the device for being used to communicate in accordance with an embodiment of the present disclosure 1500 block diagram.It will be understood to those skilled in the art that illustrate only device 1500 in Figure 15 In the unit or component that are closely related with the disclosure, in specific practice, device 1500 Can include can normal operating other functional units or component.In addition, in Figure 15 There may be necessary annexation between shown unit or component, but be in order at letter These annexations are not depicted in clean consideration, Figure 15.In certain embodiments, Device 1500 can include user equipment.

As shown in Figure 15, the device 1500 for communication includes receiving unit 1501 With determining unit 1502.Receiving unit 1501 is configured as receiving anti-in downlink subframe Feedback.Determining unit 1502 is configured as determining based on the differentiation information in the feedback described Feedback is directed to the up-link transmission in which uplink sub-frames, wherein the differentiation information is used In distinguishing at least three uplink sub-frames.

These devices shown in Figure 12-15 can partially or entirely be embodied as hardware mould Block, software module, firmware module or its any combination.Especially, in certain embodiments, Above-described flow, method or process can be by the hardware in user equipment or base station be Lai real It is existing.For example, base station can be using its transceiver and/or processor or controller come implementation method 200 and method 900, and user equipment can using its transmitter, receiver, transceiver and/ Or processor or controller come implementation method 300 and method 1000.

The UL HARQ timings shortened for the TTI in TDD are proposed in the present invention to solve Scheme, to reduce the time delay in LTE.First, it is proposed that for synchronous UL HARQ timings Enhancing solution, with supported when TTI shortens some DL subframes may be used to transmission The situation of the ACK/NACK information of more than two subframe.Then, it is proposed that a kind of asynchronous HARQ solutions improve the dispatching flexibility of re-transmission.Finally, it is proposed that hybrid synchronization - asynchronous strategy, wherein using synchronization solutions and asynchronous solution in combination according to the configuration of base station Certainly scheme.

In the description of embodiment of this disclosure, term " comprising " and its similar term should It is interpreted as opening to include, i.e., " includes but is not limited to ".Term "based" should be understood to " being based at least partially on ".Term " one embodiment " or " embodiment " should be understood For " at least one embodiment ".

It should be noted that embodiment of the disclosure can pass through hardware, software or software and hardware Combination realize.Hardware components can be realized using special logic；Software section can be deposited Store up in memory, by appropriate instruction execution system, such as microprocessor or special designs Hardware is performed.It will be appreciated by those skilled in the art that above-mentioned apparatus and method can be used Computer executable instructions and/or realize, for example, can compile included in processor control routine Provided so in the data medium of the memory of journey or such as optics or electrical signal carrier Code.

In addition, although the operation of disclosed method is described with particular order in the accompanying drawings, It is that this does not require that or implied that these must be performed according to the particular order operates, or must The operation that must be performed shown in whole could realize desired result.On the contrary, describe in flow chart Step can change execution sequence.Additionally or alternatively, it is convenient to omit some steps, will be many Individual step is combined as a step execution, and/or a step is decomposed into execution of multiple steps. It shall also be noted that can be at one according to the feature and function of two or more devices of the disclosure Embodied in device.Conversely, the feature and function of an above-described device can be further It is divided into by multiple devices to embody.

Although describing the disclosure by reference to some specific embodiments, but it is to be understood that this It is open to be not limited to disclosed specific embodiment.The disclosure is intended to the essence of appended claims God and various modifications included in scope and equivalent arrangements.

Claims

1. a kind of method for being used to communicate, including：

In base station, the up-link from user equipment is received in the first uplink sub-frames Transmission；

In response to receiving the up-link transmission, sent in downlink subframe and be directed to institute State the feedback and the configured information associated with the feedback of up-link transmission, the instruction letter Breath is indicated：

Targeted first uplink sub-frames of the feedback, and

Second uplink sub-frames of the potential re-transmission transmitted for the up-link.

2. according to the method described in claim 1, wherein the configured information includes：

Between the numbering and the numbering of first uplink sub-frames of the downlink subframe The first difference, and

Between the numbering and the numbering of the downlink subframe of second uplink sub-frames The second difference.

3. method according to claim 2, in addition to：

Further configured information is sent to indicate that the user equipment updates the first difference and the Two differences.

4. method according to claim 2, wherein first difference and the second difference Represented by the call number in predetermined set.

5. method according to claim 2, in addition to：

Dynamically determined by the base station in first difference and second difference at least One.

6. according to the method described in claim 1, wherein the feedback includes the automatic weight of mixing HARQ feedback is asked again, and the configured information includes the process identification (PID) of the HARQ Symbol.

7. according to the method described in claim 1, wherein sending the feedback and the instruction Information includes：

The feedback and the configured information are sent via uplink grant message.

8. method according to claim 7, wherein coming via uplink grant message Sending the feedback includes：

The uplink grant message is sent to be used as negative feedback.

9. a kind of method for being used to communicate, including：

The feedback transmitted for up-link and the finger associated with the feedback are received from base station Show information；

Where determining that the targeted up-link of the feedback is transmitted based on the configured information First uplink sub-frames；And

The of the potential re-transmission for determining to transmit for the up-link based on the configured information Two uplink sub-frames.

10. method according to claim 9, wherein the configured information includes：

11. method according to claim 10, in addition to：

In response to receiving further configured information from base station, based on the further instruction The first updated difference and the second difference that information includes determines first uplink Way frame and second uplink sub-frames.

12. method according to claim 11, in addition to：

Before the further configured information is received, without further up-link Retransmit.

13. method according to claim 11, in addition to：

Before the further configured information is received, keep using first difference and Second difference carries out further up-link transmission.

14. method according to claim 10, wherein first difference and described Two differences are represented by the call number in predetermined set.

15. method according to claim 10, wherein first difference and described At least one in two differences is dynamically specified by the base station.

16. method according to claim 9, wherein the feedback includes the automatic weight of mixing HARQ feedback is asked again, and the configured information includes the process identification (PID) of the HARQ Symbol.

17. method according to claim 9, in addition to：

The feedback and the configured information are received via uplink grant message.

18. method according to claim 17, wherein via uplink grant message Include to receive the feedback：

In response to receiving the uplink grant message, by the uplink grant message It is defined as negative feedback.

19. a kind of method for being used to communicate, including：

Corresponding up-link transmission is received at least three uplink sub-frames；

By for distinguish at least three uplink sub-frames differentiation information include for In the corresponding feedback of corresponding up-link transmission；And

Corresponding feedback is sent in identical downlink subframe.

20. method according to claim 19, wherein the feedback includes mixing automatically Repetitive requests HARQ feedback.

21. method according to claim 19, wherein the differentiation Information Pull bit The different values of string represent at least three uplink sub-frames.

22. method according to claim 21, wherein the length of the Bit String is by institute The number of at least three uplink sub-frames is stated to determine.

23. method according to claim 22, wherein at least three up-link Subframe includes three uplink sub-frames, and the length of the Bit String is two bits.

24. method according to claim 19, wherein the uplink sub-frames and institute At least one stated in downlink subframe includes special subframe.

25. a kind of method for being used to communicate, including：

Feedback is received in downlink subframe；And

Determine which up-link is the feedback be directed to based on the differentiation information in the feedback Up-link transmission in subframe, wherein the differentiation information is used to distinguish at least three uplinks Way frame.

26. method according to claim 25, wherein the feedback includes mixing automatically Repetitive requests HARQ feedback.

27. method according to claim 25, wherein the differentiation Information Pull bit The different values of string represent at least three uplink sub-frames.

28. method according to claim 27, wherein the length of the Bit String is by institute The number of at least three uplink sub-frames is stated to determine.

29. method according to claim 28, wherein at least three up-link Subframe includes three uplink sub-frames, and the length of the Bit String is two bits.

30. method according to claim 25, wherein the uplink sub-frames and institute At least one stated in downlink subframe includes special subframe.

31. a kind of device for being used to communicate, including：

Receiving unit, is configured as receiving from user equipment in the first uplink sub-frames Up-link is transmitted；

Transmitting element, is configured to respond to receive the up-link transmission, in descending chain The feedback and associated with the feedback transmitted for the up-link is sent in way frame Configured information, the configured information is indicated：

Targeted first uplink sub-frames of the feedback, and

32. device according to claim 31, wherein the configured information includes：

33. device according to claim 32, wherein the transmitting element is also configured For：

34. device according to claim 32, wherein first difference and second poor Value is represented by the call number in predetermined set.

35. device according to claim 32, in addition to：

Determining unit, is configured as dynamically determining in first difference and second difference At least one.

36. device according to claim 31, wherein the feedback includes mixing automatically Repetitive requests HARQ feedback, and the configured information includes the process mark of the HARQ Know symbol.

37. device according to claim 31, wherein the transmitting element is also configured For：

The feedback and the configured information are sent via uplink grant message.

38. the device according to claim 37, wherein the transmitting element is also configured For：

The uplink grant message is sent to be used as negative feedback.

39. a kind of device for being used to communicate, including：

Receiving unit, be configured as from base station receive for up-link transmit feedback and with institute State the associated configured information of feedback；

First determining unit, is configured as determining that the feedback is targeted based on the configured information Up-link transmission where the first uplink sub-frames；And

Second determining unit, is configured as determining to be used for the uplink based on the configured information Second uplink sub-frames of the potential re-transmission of road transmission.

40. the device according to claim 39, wherein the configured information includes：

41. device according to claim 40, wherein first determining unit and institute The second determining unit is stated to be additionally configured to：

42. device according to claim 41, in addition to：

Transmission unit, is configured as before the further configured information is received, does not enter The further uplink retransmission of row.

43. device according to claim 41, in addition to：

Transmission unit, is configured as before the further configured information is received, and keeps Further up-link transmission is carried out using first difference and second difference.

44. device according to claim 40, wherein first difference and described Two differences are represented by the call number in predetermined set.

45. device according to claim 40, wherein first difference and described At least one in two differences is dynamically specified by the base station.

46. the device according to claim 39, wherein the feedback includes mixing automatically Repetitive requests HARQ feedback, and the configured information includes the process mark of the HARQ Know symbol.

47. the device according to claim 39, wherein the receiving unit is also configured For：

48. device according to claim 47, wherein the receiving unit is also configured For：

49. a kind of device for being used to communicate, including：

Receiving unit, is configured as receiving corresponding up at least three uplink sub-frames Link transmission；

Setting unit, is configured as the area for distinguishing at least three uplink sub-frames Point information is included in the corresponding feedback transmitted for corresponding up-link；And

Transmitting element, is configured as sending corresponding anti-in identical downlink subframe Feedback.

50. device according to claim 49, wherein the feedback includes mixing automatically Repetitive requests HARQ feedback.

51. device according to claim 49, wherein the differentiation Information Pull bit The different values of string represent at least three uplink sub-frames.

52. device according to claim 51, wherein the length of the Bit String is by institute The number of at least three uplink sub-frames is stated to determine.

53. device according to claim 52, wherein at least three up-link Subframe includes three uplink sub-frames, and the length of the Bit String is two bits.

54. device according to claim 49, wherein the uplink sub-frames and institute At least one stated in downlink subframe includes special subframe.

55. a kind of device for being used to communicate, including：

Receiving unit, is configured as in downlink subframe receiving feedback；And

Determining unit, is configured as determining the feedback based on the differentiation information in the feedback For the up-link transmission in which uplink sub-frames, wherein the differentiation information is used for area Divide at least three uplink sub-frames.

56. device according to claim 55, wherein the feedback includes mixing automatically Repetitive requests HARQ feedback.

57. device according to claim 55, wherein the differentiation Information Pull bit The different values of string represent at least three uplink sub-frames.

58. device according to claim 57, wherein the length of the Bit String is by institute The number of at least three uplink sub-frames is stated to determine.

59. device according to claim 58, wherein at least three up-link Subframe includes three uplink sub-frames, and the length of the Bit String is two bits.

60. device according to claim 55, wherein the uplink sub-frames and institute At least one stated in downlink subframe includes special subframe.