CN102158324A - Semi-static scheduling data packet response information feedback, receiving method and apparatus thereof - Google Patents
Semi-static scheduling data packet response information feedback, receiving method and apparatus thereof Download PDFInfo
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Abstract
The embodiment of the invention relates to the field of wireless communication, and discloses a method and a device that are used for response information feedback and receiving of semi-static scheduling data packets, wherein the response information feedback method of the semi-static scheduling data packets comprises the following steps of: receiving distributed indicating UL DAI of downstream data and upstream data that is sent by a base station, wherein the UL DAI value represents the number N of downstream data packets; placing ACK/NAK of k semi-static scheduling data packets in the downstream data in a position between the (N-k+1)th and the Nth ACK/NAK; and feeding back N ACK/NAK to the base station. The response information feedback method of the semi-static scheduling data packets can guarantee correct arrangement of the fedback N ACK/NAK.
Description
Technical field
The present invention relates to wireless communication field, the particularly feedback method of the response message of semi-persistent scheduling packet and device thereof, the method for reseptance of the response message of semi-persistent scheduling packet and device thereof.
Background technology
In existing 3GPP E-UTRA system, support two kinds of model F DD (Frequency Division Duplexing, Frequency Division Duplexing (FDD)) and TDD (Time Division Duplexing, time division duplex).For tdd mode, each wireless frame length is 10 milliseconds, by 2 long be that 5 milliseconds field is formed.Each field by 8 long be that time slot and 3 special domain DwPTS, GP, UpPTS of 0.5 millisecond form; per two time slots are formed a subframe; 3 special domain DwPTS (Downlink Pilots Timeslot; descending pilot frequency time slot), GP (Guard Period; the protection interval), UpPTS (Uplink Pilots Timeslot; uplink pilot time slot) form a special subframe, the length of subframe all is 1 millisecond.
In 3GPP E-UTRA system, the ACK/NAK of a plurality of descending sub frames of feedback has two kinds of patterns on a sub-frame of uplink, is respectively multiplexing (multiplexing) pattern and binding (bundling) pattern at present.For the multiplexing pattern, if go up feedback at PUCCH (physical uplink control channel, Physical Uplink Control Channel), feedback is relevant with descending up proportioning so; If go up feedback at PDSCH (physical downlink data shared channel, physical down data sharing channel), Fan Kui bit number depends on whether exist ascending resource to distribute (uplink grant, UL Grant) signaling so.If there is the ascending resource assignment signalling, then can in signaling, pass through UL DAI (uplink data assignment indicator, upstream data distribution indication) territory clearly indicates UE (User Equipment, subscriber equipment) bit number that need feed back, base station scheduling x in N descending sub frame altogether, that just feeds back x ACK/NAK; If there is no ascending resource assignment signalling, then the bit number of UE feedback equals N, the descending sub frame correspondence that is not scheduled be NAK.
For the bundling pattern, feeding back on the PUCCH or on PDSCH, feeding back, only feeding back all descending sub frame situations that are dispatched to of 1bit ACK/NAK information representation no matter be.As long as it is NAK that one feedback is arranged in the descending sub frame that is scheduled, so final feedback is exactly NAK; Have only when the feedback of all descending sub frame correspondences that are scheduled all is ACK, final feedback is only ACK.
Two kinds of data dispatch patterns in existing LTE agreement, have been defined: dynamic dispatching and semi-persistent scheduling (Semi-Persistent Scheduling, SPS) the resource indicating mode of two kinds of transfer of data.Under the dynamic dispatching mode, each new data packets all has a control corresponding signaling PDCCH (physical downlink control channel, Physical Downlink Control Channel) to notify resource and transmission means.The PDCCH that UE issues according to BS (Basestation, base station) carries out downlink data and receives and transmitting uplink data.Under the semi-persistent scheduling mode, BS only sends a descending control signaling PDCCH when starting the transmission of (Activation) semi-persistent scheduling, UE starts the SPS transmission according to the indicated position and the moment of this PDCCH, UE carries out the transmission and the reception of new data packets according to some cycles, stops the SPS transmission up to the PDCCH that another special format is arranged.
Because dynamic dispatching and semi-persistent scheduling all are to use PDCCH to notify, the different I D that the CRC (Cyclic Redundancy Check, cyclic redundancy check (CRC)) of UE by PDCCH goes up scrambling distinguishes this time that scheduling is dynamic dispatching, or semi-persistent scheduling.The CRC of the PDCCH of dynamic dispatching carries out scrambling by C-RNTI (Cell Radio Network Temporary Identifier, cellular network temporary mark); The CRC of the PDCCH of semi-persistent scheduling carries out scrambling by SPS-C-RNTI. when UE detects the PDCCH of SPS-C-RNTI scrambling, know and start semi-static transmission this time and carry out Data Receiving or transmission according to indicated among the PDCCH, just carry out Data Receiving and transmission in a period of time afterwards according to the indicated position of the PDCCH of the semi-static transmission of primary startup, do not need each resource location of all notifying the SPS packet by PDCCH, when needs change the SPS resource location, in the moment of SPS cycle data arrival, the configuration of the semi-persistent scheduling before can replacing with the PDCCH of a new configuration.Cancel this semi-static transmission up to the PDCCH of the SPS-C-RNTI of special format scrambling.
Yet under uplink ACK/NAK Multiplexing pattern, the primary importance of K ACK/NAK of UE feedback is the ACK/NAK of SPS subframe in the prior art, and other subframes are according to DL DAI sequence arrangement UL ACK/NAK position.If UE does not detect any data on subframe, then feed back NAK.When having lost SPS, UE starts signaling, UE feedback primary importance be NAK, BS is interpreted as correct reception of control signaling and error in data with NAK, and then cause BS to receive response message improperly, therefore BS can not resend PDCCH, and UE does not still know the position of semi-static transmission, causes unnecessary retransmission.
Summary of the invention
The purpose of the embodiment of the invention provides a kind of feedback method and device of response message of semi-persistent scheduling packet, the correctly response message of feeding back downlink data.
The purpose of the embodiment of the invention provides a kind of method of reseptance and device of response message of semi-persistent scheduling packet, the correctly response message of downlink data receiving.
For achieving the above object, the embodiment of the invention provides following technical scheme: a kind of feedback method of response message of semi-persistent scheduling packet, comprise the steps: to receive downlink data and upstream data distribution indication UL DAI, wherein the number N of the value representation downlink data packet of UL DAI that the base station sends; The ACK/NAK of the k in this downlink data semi-persistent scheduling packet is placed on N-k+1 the position to N ACK/NAK; To a base station feedback N ACK/NAK.
For achieving the above object, the embodiment of the invention provides following technical scheme: a kind of method of reseptance of response message of semi-persistent scheduling packet, comprise the steps: to send downlink data and upstream data distribution indication UL DAI, wherein the number N of the value representation downlink data packet of UL DAI to user equipment (UE); Receive N ACK/NAK of UE feedback, wherein the individual position to N ACK/NAK ACK/NAK of N-k+1 is used for placing k semi-persistent scheduling packet in the downlink data among this N ACK/NAK.
For achieving the above object, the embodiment of the invention provides following technical scheme: a kind of feedback device of response message of semi-persistent scheduling packet, comprise: receiving element, in order to receive downlink data and upstream data distribution indication UL DAI, wherein the number N of the value representation downlink data packet of UL DAI that the base station sends; Processing unit is placed on N-k+1 the position to N ACK/NAK in order to the ACK/NAK with the k in this downlink data semi-persistent scheduling packet; Feedback unit is in order to a base station feedback N ACK/NAK.
For achieving the above object, the embodiment of the invention provides following technical scheme: a kind of receiving system of response message of semi-persistent scheduling packet, comprise: transmitting element, distribute indication UL DAI, wherein the number N of the value representation downlink data packet of UL DAI in order to send downlink data and upstream data to UE; Receiving element, in order to receive N ACK/NAK of UE feedback, wherein the individual position to N ACK/NAK ACK/NAK of N-k+1 is used for placing k semi-persistent scheduling packet in the downlink data among this N ACK/NAK.
The embodiment of the invention compared with prior art, the main distinction and effect thereof are: employing is placed on N-k+1 the position to N ACK/NAK with the ACK/NAK of the k in this downlink data semi-persistent scheduling packet, so, loses semi-persistent scheduling when starting the PDCCH signaling, perhaps the override PDCCH signaling of semi-persistent scheduling subframe is lost, it is dynamic dispatching subframe or semi-persistent scheduling subframe that UE can not differentiate subframe, the position that the ACK/NAK of the semi-persistent scheduling packet in this downlink data is placed on N ACK/NAK is fed back in employing, and it is correct to guarantee that N the ACK/NAK that feeds back arranges.In addition, correct feedback response message is arranged according to receiving N ACK/NAK in the base station, can reduce unnecessary data and retransmit, and then effectively save resource.
Description of drawings
Fig. 1 is the feedback method schematic diagram of response message of the semi-persistent scheduling packet of first embodiment of the invention;
Fig. 2 is the method for reseptance schematic diagram of the response message of second embodiment of the invention semi-persistent scheduling packet;
Fig. 3 is the structural representation that third embodiment of the invention semi-persistent scheduling subframe receives;
Fig. 4 is the structural representation that fourth embodiment of the invention semi-persistent scheduling subframe receives;
Fig. 5 is the structural representation that fifth embodiment of the invention semi-persistent scheduling subframe receives;
Fig. 6 is the structural representation that sixth embodiment of the invention semi-persistent scheduling subframe receives;
Fig. 7 is the feedback device structural representation of response message of the semi-persistent scheduling packet of seventh embodiment of the invention;
Fig. 8 is the receiving system structural representation of the response message of eighth embodiment of the invention semi-persistent scheduling packet
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiments of the present invention are described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the feedback method schematic diagram for the response message of first embodiment of the invention kind semi-persistent scheduling packet specifically comprises the steps;
Step 101 receives downlink data and upstream data distribution indication UL DAI, wherein the number N of the value representation downlink data packet of UL DAI that the base station sends;
Step 102 is placed on N-k+1 the position to N ACK/NAK with the ACK/NAK of the k in this downlink data semi-persistent scheduling packet; Wherein k is the positive integer greater than 0.
Step 103 is to a base station feedback N ACK/NAK.
Wherein the ACK/NAK of the k in this downlink data semi-persistent scheduling packet is placed on the ACK/NAK that N-k+1 is specially the k in the described downlink data semi-persistent scheduling packet to the position of N ACK/NAK and is placed on the individual position to N ACK/NAK of N-k+1 according to the order of sequence in the step 102, wherein is in proper order or backward according to the order of sequence.
Wherein 102 steps also comprise: the ACK/NAK of the non-semi-persistent scheduling packet in the described downlink data is begun to place from the 1st position of the position of N ACK/NAK, be specially: receive the downlink data distribution indication DL DAI that the base station sends, wherein the value representation of DL DAI correspondence downlink data packet is the downlink data packet of M non-semi-persistent scheduling; The ACK/NAK of described M non-semi-persistent scheduling packet is placed on the position of M ACK/NAK.
Adopt first embodiment that the ACK/NAK of the k in this downlink data semi-persistent scheduling packet is placed on N-k+1 the position to N ACK/NAK, so, loses semi-persistent scheduling when starting the PDCCH signaling, perhaps alternative control (override) the PDCCH signaling of semi-persistent scheduling subframe is lost, it is dynamic dispatching subframe or semi-persistent scheduling subframe that UE can not differentiate subframe, employing is placed on N-k+1 the position to N ACK/NAK with the ACK/NAK of the k in this downlink data semi-persistent scheduling packet, and it is correct to guarantee that N the ACK/NAK that feeds back arranges.
As shown in Figure 2, the method for reseptance of the response message of a kind of semi-persistent scheduling packet of second embodiment of the invention specifically comprises the steps:
Step 201 sends downlink data and upstream data distribution indication UL DAI, wherein the number N of the value representation downlink data packet of UL DAI to user equipment (UE);
Step 202 receives N ACK/NAK of UE feedback, and wherein the individual position to N ACK/NAK ACK/NAK of N-k+1 is used for placing k semi-persistent scheduling packet in the downlink data among this N ACK/NAK.
Wherein in step 202, when the base station receive the subframe that starts semi-persistent scheduling be fed back to NAK the time, in the moment of the semi-static transmission of the next one, send a signaling that starts semi-persistent scheduling again; Perhaps at the retransmission time of semi-persistent scheduling, send a signaling that starts semi-persistent scheduling again, wherein this signaling that sends again is identical or different with the signaling that starts semi-persistent scheduling.
Wherein the 1st of the position of N ACK/NAK the position begins to place the ACK/NAK of the non-semi-persistent scheduling packet in the downlink data in the step 202, be specially: the downlink data that sends to UE distributes indication DL DAI, and wherein the value representation of DL DAI correspondence downlink data packet is the downlink data packet of M non-semi-persistent scheduling; Receive M ACK/NAK of UE feedback, wherein the ACK/NAK of M non-semi-persistent scheduling packet is placed on the position of M ACK/NAK.
Employing is placed on N-k+1 the position to N ACK/NAK with the ACK/NAK of the k in this downlink data semi-persistent scheduling packet, so, loses semi-persistent scheduling when starting the PDCCH signaling, perhaps the override PDCCH signaling of semi-persistent scheduling subframe is lost, it is dynamic dispatching subframe or semi-persistent scheduling subframe that UE can not differentiate subframe, employing is placed on N-k+1 the position to N ACK/NAK with the ACK/NAK of the k in this downlink data semi-persistent scheduling packet, it is correct to guarantee that N the ACK/NAK that feeds back arranges, therefore arrange correct feedback response message when the base station according to receiving N ACK/NAK, can reduce unnecessary data and retransmit, and then effectively save resource.
Wherein, first, second embodiment of the present invention is an example to use tdd mode, wherein the characteristic that tdd mode is very big be exactly except subframe 0 and 5 be necessary for descending sub frame, subframe 2 be necessary in sub-frame of uplink, the special subframe DwPTS can transmitting downlink data or do not transmit the data, all the other subframes can flexible allocation be upstream or downstream.7 kinds of descending up proportionings as shown in table 1 below, as to define in the 3GPP E-UTRA system have 4 kinds of proportionings, 1: 3,2: 2,3: 1,3: 5 for 5 millisecond periods; For 10 millisecond periods 3 kinds of proportionings, 6: 3,7: 2,8: 1 are arranged.Except 1: 3 and 3: 5 these two kinds of proportionings, other proportionings can cause need be at the ACK/NAK of the individual descending sub frame of a sub-frame of uplink internal feedback N (＞1).
Table 1.TDD system ratio of uplink subframe to downlink subframe
Be example wherein with 2: 2 proportionings, under the situation of DwPTS transmitting downlink data, consideration need be evenly distributed to sub-frame of uplink with the ACK/NAK feedback of descending sub frame, must have 1 sub-frame of uplink need feed back the ACK/NAK of 2 descending sub frames in 2 sub-frame of uplink so.This N descending sub frame may be dynamic dispatching, also may be semi-persistent scheduling.The one or more of this N descending sub frame may be dispatched in the base station, for example only dispatch a descending sub frame or this N descending sub frame has all been dispatched, and this scheduler by the base station decides according to business.Dynamic dispatching is a random schedule, once can only dispatch a descending sub frame, and dynamic dispatching can all be made with any one descending sub frame in the base station, and the dynamic dispatching of each descending sub frame all has PDCCH; And semi-persistent scheduling refers to according to the cycle and once dispatches a plurality of descending sub frames, except the scheduling of first descending sub frame has the PDCCH, all is not have PDCCH's according to cycle each descending sub frame subsequently.
Having defined a series of requirements in the 3GPP LTE technology takes place with the situation of avoiding the HARQ interaction error.Wherein defined:
1, in UL Grant UL DAI all PDSCH number of subframes to indicate UE this time to be scheduled for by 2 bits, this PDSCH subframe comprises dynamic subframe, the semi-persistent scheduling subframe.In some cases, for example the semi-persistent scheduling number of subframes is determined, the value of UL DAI can include only non-semi-persistent scheduling subframe, at this moment UE is according to the non-semi-persistent scheduling number of subframes of semi-persistent scheduling number of subframes that knows and UL DAI indication, add and obtain all PDSCH number of subframes N, N is the number of the UE uplink ACK/NAK that need feed back.
2, distribute the PDSCH number of sub-frames of DL DAI of introducing 2 bits in (DL Grant) at downlink resource to indicate the current UE of being to distribute, under ACK/NAK Multiplexing pattern, this DL DAI disregards the semi-persistent scheduling subframe, and only to record current time with the form of register be the PDSCH number of sub frames that UE distributes.This semi-persistent scheduling subframe can be the subframe at the bearing downlink that do not have the scheduling of resource indication signaling half quiet data dispatching place; Also extendiblely think that the semi-persistent scheduling subframe is the subframe at bearing downlink half quiet data dispatching place, with semi-persistent scheduling override PDCCH place subframe; Also extendiblely think that the semi-persistent scheduling subframe is the subframe at bearing downlink half quiet data dispatching place, and comprise subframe and the semi-persistent scheduling override PDCCH place subframe that has semi-static transmission start signaling PDCCH.
3, under uplink ACK/NAK Multiplexing pattern, the primary importance of N ACK/NAK of UE feedback is the ACK/NAK of SPS subframe.Other subframes are according to DL DAI sequence arrangement ULACK/NAK position.
If 4 UE do not detect any data on subframe, then feed back NAK.
Under uplink ACK/NAK Multiplexing pattern, UE is the ACK/NAK of SPS subframe according to the primary importance of N ACK/NAK of ULDAI feedback in the prior art.The ACK/NAK of other subframes is according to DL DAI sequence arrangement.If UE does not detect any data on subframe, then feed back NAK.Therefore when the startup PDCCH of semi-persistent scheduling subframe loses, because it is dynamic subframe or semi-static subframe that UE can not differentiate this subframe, when UL ACK/NAK multiplexing feeds back, mistake can appear as shown in Figure 3, be the structural representation of semi-persistent scheduling subframe reception.Wherein, the startup of semi-static transmission distributes DL Grant signaling to activate by downlink resource, carries semi-static transmits data packets on the frequency resource that downlink resource distributes DLGrant to indicate.If UE does not receive the DLGrant signaling, should feed back DTX, promptly do not receive any data, but in fact UE feeds back NAK.BS is hard to tell this NAK and means that UE does not receive DL Grant signaling or UE has received DL Grant signaling, and the detection of SPS packet makes a mistake.If BS understands NAK according to a kind of mode in back, then BS thinks that the resource of semi-continuous scheduling is activated, so after some cycles, BS sends new semi-continuous scheduling packet, owing to be the SPS scheduling, do not have corresponding D LGrant this moment because UE does not have correct DL grant, cause can not be correct in the UE some cycles acquisition semi-persistent scheduling data.
As shown in table 1, suppose that BS ascending-descending subframes allocation ratio when retransmitting the SPS packet is 1: 3, and first subframe carrying semi-static data bag, second, third subframe is the subframe of dynamic dispatching.According to prior art, the DL DAI among the DL Grant of second, third subframe should be respectively 0,1 at this moment.The DAI of the UL Grant of sub-frame of uplink is 3.When UE received these 4 descending sub frames, it was correct to suppose that second subframe receives, and the 3rd subframe receives correct.As UE during up the feedback, because the DAI=3 of ULGrant, and the DL DAI of the DL Grant of second subframe that receives is 0, and because UE does not receive the PDCCH that SPS starts subframe, so UE does not think that first subframe of this moment is the SPS subframe.This is because first position feedback that requires the ACK/NAK of SPS subframe must be fixed on the multiplexin group in the prior art causes.So, the feedback of UE is exactly ACK, ACK, NAK, and in fact BS expectation be fed back to NAK, ACK, ACK.This is because whether BS and UE are inconsistent the causing of judgement of semi-persistent scheduling subframe to first subframe.Further, because receiving SPS, UE do not start, and BS thinks that UE has received that SPS starts signaling, in the duration of one section SPS business, UE can be to SPS packet feedback NAK, and BS can not resend PDCCH, causes UE still not know the position of semi-static transmission, thereby causes unnecessary retransmission to cause unnecessary retransmission.
At the ascending-descending subframes allocation ratio when retransmitting the SPS packet of BS in the prior art is 1: 3, first position feedback that the ACK/NAK of SPS subframe must be fixed on multiplexing group (being N ACK/NAK) causes feedback error, third embodiment of the invention proposes a kind of improved plan, with the pairing uplink ACK/NAK of the descending sub frame of semi-persistent scheduling when being UL ACK/NAKmultiplexing, be fixed in last location transmission of multiplexing group (being N ACK/NAK), just can avoid problem as implied above.
If DwPTS also can the bearing downlink data, in 5ms, have 4 descending sub frames and a sub-frame of uplink.If wherein 3 descending sub frames are dispatched to a user and used, its first descending sub frame is the SPS subframe, and the second, the three descending sub frame is carrying descending dynamic dispatching data.At this moment, UL DAI can calculate all descending sub frames that is scheduled of user, at this moment UL DAI=3.Because first descending sub frame is by the semi-persistent scheduling subframe, DL DAI parameter is not charged to the SPS subframe.Second descending sub frame is the dynamic dispatching data, and the numerical value of the DL DAI of this subframe is 0.The 3rd descending sub frame also is the dynamic dispatching data burst, and the numerical value of the DL DAI of this subframe is 1.If UE end is lost semi-static data packets for transmission (descending sub frame 1), and the startup DL grant of semi-static transmission loses, but correctly receives the dynamic dispatching data of other subframe, and then the UE end can not know that first descending sub frame is the SPS subframe.UE judges that according to UL DAI=3 having 3 UL ACK/NAK needs feedback.Because at the second descending sub frame DL DAI=0, UE then can judge first descending sub frame of the BS scheduling that descending sub frame two is by accident, and first position feedback ACK in multiplexing group (being N ACK/NAK).At the 3rd descending sub frame place, according to DL DAI=1, judge that then the 3rd descending sub frame is second descending sub frame that is scheduled for, and second position feedback ACK in multiplexing group (being N ACK/NAK).At the 4th descending sub frame place, owing to do not detect any data, UE can judge that the 4th descending sub frame is not receive the 3rd subframe that is scheduled for and the 3rd position feedback NAK in the multiplexing group.So, UE end actual feedback ACK, ACK, NAK.And according to present embodiment, with the pairing uplink ACK/NAK of the descending sub frame of semi-persistent scheduling when being UL ACK/NAKmultiplexing, be fixed in last location transmission of multiplexing group, be the 3rd position that UE is placed on the ACK/NAK feedback of semi-persistent scheduling subframe 3 ACK/NAK, so BS holds the ACK that is fed back to that should obtain, ACK, NAK.So, should to obtain ACK/NAK in proper order identical for the ACK/NAK order that sends of UE end and BS end.
In addition, in the 3rd embodiment, if BS receives when starting the subframe feedback NAK of semi-persistent scheduling, BS will send again in the cycle of next semi-static data transmission one with the identical PDCCH of startup semi-persistent scheduling PDCCH; Perhaps transmit again in the re-transmission position of semi-persistent scheduling subframe one with start the identical PDCCH of semi-persistent scheduling PDCCH.UE carries out semi-persistent scheduling transfer of data or reception according to the indicated resource of this PDCCH, and starts the transmission of semi-persistent scheduling.
Adopt the 3rd embodiment that the position that the ACK/NAK of the semi-persistent scheduling packet in this downlink data is placed on the 3rd ACK/NAK is fed back, so, loses semi-persistent scheduling when starting the PDCCH signaling, it is dynamic dispatching subframe or semi-persistent scheduling subframe that UE can not differentiate subframe, the position that the ACK/NAK of the semi-persistent scheduling packet in this downlink data is placed on the 3rd ACK/NAK is fed back in employing, and it is correct to guarantee that 3 ACK/NAK that feed back arrange.In addition, third embodiment of the invention only with descending sub-frame configuration ratio be 1: 3 be example, other six kinds of descending sub frame allocation ratios are equally applicable to the present invention in the table 1, this repeats no more.
In addition, after the normal startup of SPS transmission, in the moment of SPS cycle data arrival, the configuration of the semi-persistent scheduling before can replacing with the DL Grant of a new configuration.When the subframe at alternative control (override) PDCCH place is credited to DL DAI, and when the pairing ACK/NAK of this SPS subframe need be placed on first fixed position of ACK/NAK multiplexing group, and when this subframe PDCCH loses, can make a mistake and be illustrated in fig. 4 shown below, structural representation for the reception of semi-persistent scheduling subframe, with ratio of uplink subframe to downlink subframe is example at 1: 3, and BS has dispatched 3 descending sub frames, at this moment UL DAI=3 to UE.Subframe A is a SPS verride subframe, so DL DAI=0, subframe C, D are the dynamic dispatching subframe, and DL DAI is respectively 1,2.When SPS override PDCCH occurs in subframe A, if when the PDCCH of subframe A and subframe D all loses, have only subframe C correctly to be received, UE learns the UL DAI=3 of subframe C, DL DAI=1.But UE does not know that subframe A is a SPS override subframe, thinks that also subframe A is a SPS subframe that is not counted in DL DAI.Therefore, UE can judge by accident and think that subframe B is used as the subframe of DL DAI=0.Therefore adopt the ACK/NAK fixed placement of semi-static subframe correspondence first position in the multiplexing group, UE end actual feedback NAK, NAK, ACK, be fed back to NAK, ACK, NAK but B S end should obtain, therefore can cause the inequality of feedback that the BS end should obtain and UE actual feedback.
The ACK/NAK of SPS subframe is fixed on first position feedback of multiplexing group at available technology adopting, when losing, the override of semi-persistent scheduling subframe PDCCH signaling causes feedback error, fourth embodiment of the invention proposes a kind of improved plan, under 1: 3 situation of ratio of uplink subframe to downlink subframe, if DwPTS also can the bearing downlink data, in 5ms, have 4 descending sub frames and a sub-frame of uplink.With the pairing uplink ACK/NAK of the descending sub frame of semi-persistent scheduling when being ULACK/NAK multiplexing, be fixed in last location transmission of N ACK/NAK, promptly be fixed on the 3rd position, then BS end should obtain is fed back to NAK, ACK, NAK.According to the DL DAI=1 on the subframe C, UL DAI=3.UE can judge by accident disconnected, and subframe B is the dynamic dispatching subframe, feedback NAK, and subframe A is the SPS subframe, can organize last position feedback NAK at UL ACK/NAK multiplexing.Other subframes are according to DL DAI sequence arrangement UL ACK/NAK position.UE end actual feedback NAK, ACK, NAK.So the order of UE actual feedback is identical with the feedback order that the BS end should receive.
Adopt the 4th embodiment that the position that the ACK/NAK of the semi-persistent scheduling packet in this downlink data is placed on the 3rd ACK/NAK is fed back, when so the overridePDCCH signaling of semi-persistent scheduling subframe is lost, it is dynamic dispatching subframe or semi-persistent scheduling subframe that UE can not differentiate subframe, the position that the ACK/NAK of the semi-persistent scheduling packet in this downlink data is placed on the 3rd ACK/NAK is fed back in employing, can guarantee that the order of UE actual feedback is identical with the feedback order that the BS end should receive.In addition, fourth embodiment of the invention only with descending sub-frame configuration ratio be 1: 3 be example, other six kinds of descending sub frame allocation ratios are equally applicable to the present invention in the table 1, this repeats no more.
A third embodiment of the invention startup PDCCH with a semi-persistent scheduling subframe is an example when losing, and the semi-static subframe transmission of the embodiment of the invention is not limited to 1, fifth embodiment of the invention is an example with 2 semi-persistent scheduling subframes, the startup PDCCH of one of them semi-persistent scheduling subframe loses, another one semi-persistent scheduling subframe normal transmission.See also Fig. 5, wherein subframe B is the subframe that the startup PDCCH of semi-persistent scheduling subframe loses, subframe C is a semi-persistent scheduling subframe that does not have the normal transmission of DL grant, employing is fed back the position that the ACK/NAK of the semi-persistent scheduling packet in this downlink data is placed on first ACK/NAK can make a mistake, make a concrete analysis of as follows: BS has dispatched 3 descending sub frames, at this moment UL DAI=3 to UE.Subframe A is being for carrying the dynamic dispatching data, DL DAI=0 at this moment, and UE correctly receives this subframe, feeding back ACK, since DL DAI=0, feeding back ACK.In subframe B position,,, and can false judgment be that a dynamic dispatching subframe is at the 3rd position feedback NAK so UE does not think that the subframe B of this moment is the SPS subframe because UE does not receive the PDCCH that SPS starts subframe.Subframe C is a semi-persistent scheduling subframe that does not have the normal transmission of DL grant, and the proper really reception of UE, should be at first position feedback ACK.UE end actual feedback ACK, ACK, NAK.BS end is fed back to NAK, ACK, ACK but should obtain.So the order of UE actual feedback is different with the feedback order that the BS end should receive.
In order to address this problem, fifth embodiment of the invention with the pairing uplink ACK/NAK of the descending sub frame of semi-persistent scheduling when being UL ACK/NAK multiplexing, SPS subframe corresponding A CK/NAK is arranged in dynamic subframe later according to a definite sequence, according to present embodiment, the DL DAI=0 of subframe A, subframe A is a dynamic dispatching subframe feeding back ACK, ACK should be placed on first ACK/NAK position.Subframe B is the SPS subframe, should feed back NAK; Subframe C also is the SPS subframe, should be at the 3rd ACK/NAK position feedback ACK.According to subframe B, the order that C arrives, the position of arranging half scheduling subframe corresponding A CK/NAK.BS end should obtain is fed back to ACK, NAK, ACK.And at the UE end, according to the DL DAI=0 on the subframe A, UL DAI=3.UE can judge that subframe A is the dynamic dispatching subframe, and because DL DAI=0, can be at first position feedback ACK.Because the PDCCH of subframe B loses, can judge subframe B by accident is the dynamic dispatching subframe, can be at the 2nd the position feedback NAK of UL ACK/NAK.Subframe C is the semi-persistent scheduling subframe, and correct the reception, and at this moment, meeting is an ACK/NAK position ACK in the end.UE end actual feedback ACK, NAK, ACK.So the order of UE actual feedback is identical with the feedback order that the BS end should receive.
Adopt the 5th embodiment that the position that the ACK/NAK of 2 semi-persistent scheduling packets in this downlink data is placed on the 2nd, 3 ACK/NAK is according to the order of sequence fed back, so, loses semi-persistent scheduling when starting the PDCCH signaling, it is dynamic dispatching subframe or semi-persistent scheduling subframe that UE can not differentiate subframe, the position that the ACK/NAK of the semi-persistent scheduling packet in this downlink data is placed on the 2nd, 3 ACK/NAK is fed back in employing, and it is correct to guarantee that 3 ACK/NAK that feed back arrange.In addition, fifth embodiment of the invention is an example with 2 semi-persistent schedulings only, and the semi-persistent scheduling more than 2 also is applicable to the present invention.In addition, fifth embodiment of the invention only starts the PDCCH signaling with semi-persistent scheduling in 2 loses, and the PDCCH signaling is lost, a normal semi-persistent scheduling data-bag lost already is used in the present invention if a semi-persistent scheduling starts, and this repeats no more.In addition, third embodiment of the invention only with descending sub-frame configuration ratio be 1: 3 be example, other six kinds of descending sub frame allocation ratios are equally applicable to the present invention in the table 1, this repeats no more.
The present invention the 3rd to the 5th embodiment, BS are the situations of having dispatched 3 descending sub frames for UE, and the 6th embodiment is an example with ratio of uplink subframe to downlink subframe at 1: 3, and 5ms has 4 descending sub frames in the cycle, and BS is the situation that UE has dispatched 4 descending sub frames.Normally begin the situation that error of transmission of semi-static subframe bag and dynamic subframe PDCCH lose in semi-static transmission.See also Fig. 6,, in 5ms, have 4 descending sub frames and a sub-frame of uplink if DwPTS also can the bearing downlink data.Under the situation that semi-static transmission normally begins, if the error of transmission of semi-static subframe A bag, and dynamically subframe B PDCCH loses, and UE receives semi-static transmission data burst at the fixed time of some cycles.With the pairing uplink ACK/NAK of the descending sub frame of semi-persistent scheduling when being UL ACK/NAK multiplexing, be fixed in last location transmission of multiplexing group.The UE end knows that subframe A is the semi-persistent scheduling subframe, and detects subframe A loss of data, feedback NAK.Do not detect PDCCH on the subframe B.Detect data on the subframe C, and infer that according to DL DAI=1 subframe B has lost a dynamic data scheduling subframe, subframe C feeding back ACK, subframe B feeds back NAK.Subframe D is correct, detects the data feeding back ACK.UL DAI=4 is so need 4 ACK/NAK information of feedback.Putting in order and semi-static subframe be placed on the method for last position according to DL DAI.UE end actual feedback is as follows, and NAK, ACK, ACK, NAK are fed back to NAK, ACK, ACK, NAK and the BS end should obtain, and so the order of UE actual feedback is identical with the feedback order that the BS end should receive.
As shown in Figure 7, for seventh embodiment of the invention is a kind of feedback device of response message of semi-persistent scheduling packet, feedback device 10 comprises: receiving element 11, in order to receive downlink data and upstream data distribution indication UL DAI, wherein the number N of the value representation downlink data packet of UL DAI that the base station sends; Processing unit 12 is placed on N-k+1 the position to N ACK/NAK in order to the ACK/NAK with the k in this downlink data semi-persistent scheduling packet; Feedback unit 13 is in order to a base station feedback N ACK/NAK.Wherein processing unit 12 is also in order to begin the ACK/NAK of the non-semi-persistent scheduling packet in the described downlink data to place from the 1st position of the position of N ACK/NAK, be specially: receive the downlink data distribution indication DL DAI that the base station sends, wherein the value representation of DL DAI correspondence downlink data packet is the downlink data packet of M non-semi-persistent scheduling; The ACK/NAK of described M non-semi-persistent scheduling packet is placed on the position of M ACK/NAK.
The ACK/NAK of k semi-persistent scheduling packet in this downlink data is placed on the ACK/NAK that N-k+1 is specially the k in the described downlink data semi-persistent scheduling packet to the position of N ACK/NAK and is placed on the individual position to N ACK/NAK of N-k+1 according to the order of sequence in the processing unit 12 in addition, wherein be order or backward according to the order of sequence, specifically can be referring to the present invention the 3rd to the 6th embodiment, this repeats no more.
Adopt the 7th embodiment that the ACK/NAK of the k in this downlink data semi-persistent scheduling packet is placed on N-k+1 the position to N ACK/NAK, so, loses semi-persistent scheduling when starting the PDCCH signaling, perhaps the override PDCCH signaling of semi-persistent scheduling subframe is lost, it is dynamic dispatching subframe or semi-persistent scheduling subframe that UE can not differentiate subframe, employing is placed on N-k+1 the position to N ACK/NAK with the ACK/NAK of the k in this downlink data semi-persistent scheduling packet, and it is correct to guarantee that N the ACK/NAK that feeds back arranges.
As shown in Figure 8, eighth embodiment of the invention is a kind of receiving system of response message of semi-persistent scheduling packet, this device 20 comprises: transmitting element 21, distribute indication UL DAI, wherein the number N of the value representation downlink data packet of UL DAI in order to send downlink data and upstream data to UE; Receiving element 22, in order to receive N ACK/NAK of UE feedback, the individual position to N ACK/NAK ACK/NAK of N-k+1 is used for placing k semi-persistent scheduling packet in the downlink data among the wherein said N ACK/NAK.Wherein when receiving element 22 receive the subframe that starts semi-persistent scheduling be fed back to NAK the time, this transmitting element 21 is in the moment of the semi-static transmission of the next one, also in order to send a signaling that starts semi-persistent scheduling again; Perhaps at the retransmission time of semi-persistent scheduling, also in order to send a signaling that starts semi-persistent scheduling again, wherein this signaling that sends again is identical or different with the signaling that starts semi-persistent scheduling.In addition, the 1st of the position of N ACK/NAK the position begins to place the ACK/NAK that is used for placing the non-semi-persistent scheduling packet in the downlink data in the receiving element 22, be specially: the downlink data that sends to UE distributes indication DL DAI, and wherein the value representation of DL DAI correspondence downlink data packet is the downlink data packet of M non-semi-persistent scheduling; Receive M ACK/NAK of UE feedback, wherein the ACK/NAK of M non-semi-persistent scheduling packet is placed on the position of M ACK/NAK, specifically can be referring to the present invention the 3rd to the 6th embodiment, and this repeats no more.
Adopt eighth embodiment of the invention that the ACK/NAK of the k in this downlink data semi-persistent scheduling packet is placed on N-k+1 the position to N ACK/NAK, so, loses semi-persistent scheduling when starting the PDCCH signaling, perhaps the override PDCCH signaling of semi-persistent scheduling subframe is lost, it is dynamic dispatching subframe or semi-persistent scheduling subframe that UE can not differentiate subframe, employing is placed on N-k+1 the position to N ACK/NAK with the ACK/NAK of the k in this downlink data semi-persistent scheduling packet, it is correct to guarantee that N the ACK/NAK that feeds back arranges, therefore arrange correct feedback response message when the base station according to receiving N ACK/NAK, can reduce unnecessary data and retransmit, and then effectively save resource.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize based on such understanding by the mode that software adds necessary general hardware platform, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (46)
1. the feedback method of the response message of a semi-persistent scheduling packet is characterized in that:
Receive upstream data distribution indication UL DAI and downlink data, wherein the number N of the value representation downlink data packet of UL DAI that the base station sends;
The ACK/NAK of the k in the described downlink data semi-persistent scheduling packet is placed on N-k+1 the position to N ACK/NAK;
To a base station feedback N ACK/NAK.
2. feedback method according to claim 1, wherein the ACK/NAK of the k in the described downlink data semi-persistent scheduling packet being placed on N-k+1 the position to N ACK/NAK is specially: according to the order that the semi-persistent scheduling subframe arrives, and the position of arrangement semi-persistent scheduling subframe corresponding A CK/NAK.
3. feedback method according to claim 1 is characterized in that, described method also comprises: the ACK/NAK of the non-semi-persistent scheduling packet in the described downlink data is begun to place from the 1st position of the position of N ACK/NAK.
4. feedback method according to claim 3 is characterized in that, described ACK/NAK with the non-semi-persistent scheduling packet in the described downlink data begins to place from the 1st position of the position of N ACK/NAK and is specially:
Receive the downlink data distribution indication DL DAI that the base station sends, wherein the value representation of DL DAI correspondence downlink data packet is the downlink data packet of M non-semi-persistent scheduling;
The ACK/NAK of described M non-semi-persistent scheduling packet is placed on the position of M ACK/NAK.
5. according to any one described feedback method of claim 1 to 4, it is characterized in that, described semi-persistent scheduling packet is the packet that does not have the scheduling of resource indication signaling, and the non-semi-persistent scheduling packet in the described downlink data is the packet that the scheduling of resource indication signaling is arranged.
6. according to any one described feedback method of claim 1 to 4, it is characterized in that, describedly specifically comprise to a base station feedback N ACK/NAK:
By physical down data sharing channel PDSCH to the described N of a base station feedback ACK/NAK.
7. feedback method according to claim 6 is characterized in that, described k is 1.
8. the method for reseptance of the response message of a semi-persistent scheduling packet is characterized in that:
Send upstream data to user equipment (UE) and distribute indication UL DAI and downlink data, wherein the number N of the value representation downlink data packet of ULDAI;
Receive N ACK/NAK of UE feedback, the individual position to N ACK/NAK ACK/NAK of N-k+1 is used for placing k semi-persistent scheduling packet in the downlink data among the wherein said N ACK/NAK.
9. method of reseptance according to claim 8 is characterized in that, when the base station receive the subframe that starts semi-persistent scheduling be fed back to NAK the time, in the moment of the semi-static transmission of the next one, send a signaling that starts semi-persistent scheduling again; Perhaps at the retransmission time of semi-persistent scheduling, send a signaling that starts semi-persistent scheduling again, the wherein said signaling that sends again is identical or different with the signaling that starts semi-persistent scheduling.
10. method of reseptance according to claim 8 is characterized in that, the 1st position of the position of a described N ACK/NAK begins to place the ACK/NAK of the non-semi-persistent scheduling packet in the downlink data.
11. method of reseptance according to claim 10 is characterized in that, the ACK/NAK that the 1st position of the position of a described N ACK/NAK begins to place the non-semi-persistent scheduling packet in the downlink data is specially:
Send downlink data to UE and distribute indication DL DAI, wherein the value representation of DL DAI correspondence downlink data packet is the downlink data packet of M non-semi-persistent scheduling;
Receive M ACK/NAK of UE feedback, wherein the ACK/NAK of M non-semi-persistent scheduling packet is placed on the position of M ACK/NAK.
12. according to Claim 8 to 11 any described method of reseptances, it is characterized in that, described semi-persistent scheduling packet is the packet that does not have the scheduling of resource indication signaling, and the non-semi-persistent scheduling packet in the described downlink data is the packet that the scheduling of resource indication signaling is arranged.
13. according to Claim 8 to 11 any one method of reseptances, it is characterized in that, N-k+1 k semi-persistent scheduling packet that is used for placing in the downlink data to the position of N ACK/NAK ACK/NAK is specially among the described N ACK/NAK: according to the order that the semi-persistent scheduling subframe arrives, arrange the position of semi-persistent scheduling subframe corresponding A CK/NAK.
14. to 11 any one described method of reseptance, it is characterized in that according to Claim 8 N ACK/NAK of described reception UE feedback specifically comprises:
Receive described UE by described N the ACK/NAK of physical down data sharing channel PDSCH to feedback.
15. method of reseptance according to claim 14 is characterized in that, described k is 1.
16. the feedback device of the response message of a semi-persistent scheduling packet is characterized in that, comprising:
Receiving element is in order to receive upstream data distribution indication UL DAI and downlink data, wherein the number N of the value representation downlink data packet of UL DAI that the base station sends;
Processing unit is placed on N-k+1 the position to N ACK/NAK in order to the ACK/NAK with the k in the described downlink data semi-persistent scheduling packet;
Feedback unit is in order to a base station feedback N ACK/NAK.
17. feedback device according to claim 16 is characterized in that,
Described processing unit is also in order to begin the ACK/NAK of the non-semi-persistent scheduling packet in the described downlink data to place from the 1st position of the position of N ACK/NAK.
18. feedback device according to claim 16 is characterized in that,
Described receiving element also is used to receive the downlink data distribution indication DL DAI that the base station sends, and wherein the value representation of DL DAI correspondence downlink data packet is the downlink data packet of M non-semi-persistent scheduling;
Described processing unit also is specially in order to the ACK/NAK of the non-semi-persistent scheduling packet in the described downlink data is begun to place from the 1st position of the position of N ACK/NAK: the position that is placed on M ACK/NAK in order to ACK/NAK that will the individual non-semi-persistent scheduling packet of described M.
19. the described feedback device any according to claim 16 to 18 is characterized in that,
Described semi-persistent scheduling packet is the packet that does not have the scheduling of resource indication signaling, and the non-semi-persistent scheduling packet in the described downlink data is the packet that the scheduling of resource indication signaling is arranged.
20. according to any described feedback device of claim 16 to 18, it is characterized in that, described processing unit, being placed on N-k+1 the position to N ACK/NAK in order to the ACK/NAK with the k in the described downlink data semi-persistent scheduling packet is specially: according to the order that the semi-persistent scheduling subframe arrives, arrange the position of semi-persistent scheduling subframe corresponding A CK/NAK.
21. feedback device according to claim 16 is characterized in that, a described N ACK/NAK is by physical down data sharing channel PDSCH feedback.
22. feedback device according to claim 21 is characterized in that, described k is 1.
23. the receiving system of the response message of a semi-persistent scheduling packet is characterized in that, comprising:
Transmitting element distributes indication UL DAI and downlink data, wherein the number N of the value representation downlink data packet of UL DAI in order to send upstream data to UE;
Receiving element, in order to receive N ACK/NAK of UE feedback, the individual position to N ACK/NAK ACK/NAK of N-k+1 is used for placing k semi-persistent scheduling packet in the downlink data among the wherein said N ACK/NAK.
24. receiving system according to claim 23, wherein when receiving element receive the subframe that starts semi-persistent scheduling be fed back to NAK the time, described transmitting element is in the moment of the semi-static transmission of the next one, also in order to send a signaling that starts semi-persistent scheduling again; Perhaps at the retransmission time of semi-persistent scheduling, also in order to send a signaling that starts semi-persistent scheduling again, the wherein said signaling that sends again is identical or different with the signaling that starts semi-persistent scheduling.
25. receiving system according to claim 23 is characterized in that, the 1st position of the position of a described N ACK/NAK begins to place the ACK/NAK of the non-semi-persistent scheduling packet in the downlink data.
26. receiving system according to claim 25 is characterized in that, the ACK/NAK that the 1st position of the position of a described N ACK/NAK begins to place the non-semi-persistent scheduling packet in the downlink data is specially:
Send downlink data to UE and distribute indication DL DAI, wherein the value representation of DL DAI correspondence downlink data packet is the downlink data packet of M non-semi-persistent scheduling;
Receive M ACK/NAK of UE feedback, wherein the ACK/NAK of M non-semi-persistent scheduling packet is placed on the position of M ACK/NAK.
27. the described receiving system any according to claim 23 to 26, it is characterized in that, described semi-persistent scheduling packet is the packet that does not have the scheduling of resource indication signaling, and the non-semi-persistent scheduling packet in the described downlink data is the packet that the scheduling of resource indication signaling is arranged.
28. according to any described receiving system of claim 23 to 26, it is characterized in that, N-k+1 k semi-persistent scheduling packet that is used for placing in the downlink data to the position of N ACK/NAK ACK/NAK is specially among the described N ACK/NAK: according to the order that the semi-persistent scheduling subframe arrives, arrange the position of semi-persistent scheduling subframe corresponding A CK/NAK.
29. receiving system according to claim 23 is characterized in that, a described N ACK/NAK is by physical down data sharing channel PDSCH feedback.
30. receiving system according to claim 29 is characterized in that, described k is 1.
31. the feedback method of the response message of a semi-persistent scheduling packet is characterized in that, comprising:
The base station sends upstream data to user equipment (UE) and distributes indication UL DAI and downlink data, wherein the number N of the value representation downlink data packet of UL DAI;
Described UE receives the upstream data that described base station sends and distributes indication UL DAI and downlink data, and the ACK/NAK of the k in the described downlink data semi-persistent scheduling packet is placed on the individual position to N ACK/NAK of N-k+1;
Described UE is to a described base station feedback N ACK/NAK.
32. method as claimed in claim 31, it is characterized in that, described ACK/NAK with the k in the described downlink data semi-persistent scheduling packet is placed on N-k+1 the position to N ACK/NAK and is specially: according to the order that the semi-persistent scheduling subframe arrives, arrange the position of semi-persistent scheduling subframe corresponding A CK/NAK; Or
The ACK/NAK of the k in the described downlink data semi-persistent scheduling packet is placed on N-k+1 the position to N ACK/NAK according to the order of sequence, wherein is order or backward according to the order of sequence.
33. method as claimed in claim 31 is characterized in that, described k is 1.
34., it is characterized in that described method also comprises according to the described feedback method of claim 31,32 or 33:
Described UE begins the ACK/NAK of the non-semi-persistent scheduling packet in the described downlink data to place from the 1st position of the position of N ACK/NAK.
35. feedback method according to claim 34 is characterized in that, described UE begins the ACK/NAK of the non-semi-persistent scheduling packet in the described downlink data to place from the 1st position of the position of N ACK/NAK and is specially:
Described UE receives the downlink data distribution indication DL DAI that the base station sends, and wherein the value representation of DL DAI correspondence downlink data packet is the downlink data packet of M non-semi-persistent scheduling;
Described UE is placed on the ACK/NAK of described M non-semi-persistent scheduling packet the position of M ACK/NAK.
36. as the described method of claim 31,32 or 33, it is characterized in that, also comprise:
When described base station receives when starting the subframe feedback NAK of semi-persistent scheduling, described base station the cycle of next semi-static data transmission send again one with the identical PDCCH of startup semi-persistent scheduling physical downlink control channel PDCCH; Perhaps transmit again in the re-transmission position of semi-persistent scheduling subframe one with start the identical PDCCH of semi-persistent scheduling PDCCH.
37. according to claim 31,32 or 33 described feedback methods, it is characterized in that described semi-persistent scheduling packet is the packet that does not have the scheduling of resource indication signaling, the non-semi-persistent scheduling packet in the described downlink data is the packet that the scheduling of resource indication signaling is arranged.
38., it is characterized in that described UE specifically comprises to a described base station feedback N ACK/NAK according to the described feedback method of claim 31,32 or 33:
Described UE passes through physical down data sharing channel PDSCH to the described N of a described base station feedback ACK/NAK.
39. the feedback communication system of a semi-persistent scheduling packet is characterized in that, comprising: base station and user equipment (UE), wherein,
Described base station is used for sending upstream data to described UE and distributes indication UL DAI and downlink data, wherein the number N of the value representation downlink data packet of UL DAI;
Described UE is used to receive the upstream data that described base station sends and distributes indication UL DAI and downlink data, and the ACK/NAK of the k in the described downlink data semi-persistent scheduling packet is placed on the individual position to N ACK/NAK of N-k+1; To a described base station feedback N ACK/NAK.
40. feedback communication as claimed in claim 39 system is characterized in that, described UE is used for ACK/NAK with k semi-persistent scheduling packet of described downlink data and is placed on N-k+1 the position to N ACK/NAK and is specially:
Described UE is used for the order according to the arrival of semi-persistent scheduling subframe, arranges the position of semi-persistent scheduling subframe corresponding A CK/NAK; Or, be used for the ACK/NAK of k semi-persistent scheduling packet of described downlink data is placed on N-k+1 the position to N ACK/NAK according to the order of sequence, wherein be in proper order or backward according to the order of sequence.
41., it is characterized in that described k is 1 according to the described feedback communication of claim 39 system.
42., it is characterized in that described UE also is used for the ACK/NAK of the non-semi-persistent scheduling packet of described downlink data is begun to place from the 1st position of the position of N ACK/NAK according to the described feedback communication of claim 39,40 or 41 system.
43., it is characterized in that described UE begins the ACK/NAK of the non-semi-persistent scheduling packet in the described downlink data to place from the 1st position of the position of N ACK/NAK and is specially according to the described feedback communication of claim 42 system:
Described UE is used to receive the downlink data distribution indication DL DAI that the base station sends, and wherein the value representation of DL DAI correspondence downlink data packet is the downlink data packet of M non-semi-persistent scheduling; The ACK/NAK of described M non-semi-persistent scheduling packet is placed on the position of M ACK/NAK.
44. as claim 39,40 or 41 described feedback communication systems, it is characterized in that, when described base station receives when starting the subframe feedback NAK of semi-persistent scheduling, described base station, also be used for the cycle of next semi-static data transmission send again one with the identical PDCCH of startup semi-persistent scheduling physical downlink control channel PDCCH; Perhaps transmit again in the re-transmission position of semi-persistent scheduling subframe one with start the identical PDCCH of semi-persistent scheduling PDCCH.
45. according to claim 39,40 or 41 described feedback communication systems, it is characterized in that described semi-persistent scheduling packet is the packet that does not have the scheduling of resource indication signaling, the non-semi-persistent scheduling packet in the described downlink data is the packet that the scheduling of resource indication signaling is arranged.
46., it is characterized in that a described N ACK/NAK is by physical down data sharing channel PDSCH feedback according to the described feedback communication of claim 39,40 or 41 system.
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| US20070147333A1 (en) * | 2005-12-22 | 2007-06-28 | Makhijani Mahesh A | System and method of transmission scheduling in time-division duplex communication system to minimize interference |
| CN101114868A (en) * | 2006-07-25 | 2008-01-30 | 大唐移动通信设备有限公司 | Feedback channel distribution indicating method and system |
| CN101296061A (en) * | 2007-04-29 | 2008-10-29 | 中兴通讯股份有限公司 | Uplink data transmission method of LTE TDD system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105991272A (en) * | 2015-02-13 | 2016-10-05 | 中兴通讯股份有限公司 | Data transmission method and apparatus |
| WO2019047590A1 (en) * | 2017-09-08 | 2019-03-14 | 电信科学技术研究院有限公司 | Transmission method, device, terminal, base station and storage medium |
| CN109474403A (en) * | 2017-09-08 | 2019-03-15 | 电信科学技术研究院 | A kind of transmission method, device, terminal, base station and storage medium |
| CN109474403B (en) * | 2017-09-08 | 2020-12-08 | 电信科学技术研究院 | Transmission method, device, terminal, base station and storage medium |
| US11489629B2 (en) | 2017-09-08 | 2022-11-01 | Datang Mobile Communications Equipment Co., Ltd. | Transmission method, device, terminal, base station and storage medium |
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| CN102158324B (en) | 2014-03-12 |
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