CN102469610A - Method and device for feeding back and receiving response message in carrier aggregation - Google Patents
Method and device for feeding back and receiving response message in carrier aggregation Download PDFInfo
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- CN102469610A CN102469610A CN2010105475545A CN201010547554A CN102469610A CN 102469610 A CN102469610 A CN 102469610A CN 2010105475545 A CN2010105475545 A CN 2010105475545A CN 201010547554 A CN201010547554 A CN 201010547554A CN 102469610 A CN102469610 A CN 102469610A
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Abstract
The invention relates to a method and device for feeding back and receiving a response message in a carrier aggregation. The method for feeding back and receiving the response message in carrier aggregation comprises the steps of: receiving a physical downlink control signaling, wherein the physical downlink control signaling indicates if only a main member carrier is scheduled; receiving downlink data carried by member carriers, and generating the response message; when the physical downlink control signaling indicates that only the main member carrier is scheduled, feeding back the response message of the main member carrier in the member carriers; and when the physical downlink control signaling indicates that not only the main member carrier is scheduled, performing time domain and/or carrier domain binding on the response messages of the main and secondary member carriers in the member carriers, and feeding back the bound response message. According to the technical scheme of the embodiment of the invention, both user equipment and a base station can confirm the specific feedback mode of the response message, so that the base station can correctly analyze the response message fed back by the user equipment.
Description
Technical field
The present invention relates to communication technical field, the method and apparatus of feedback response message and reception response message in particularly a kind of carrier aggregation.
Background technology
(Hybrid Automatic Repeat Request, HARQ) in the technology, the data receiver need feed back response message to data receiver, to help confirming whether data correctly receive to mix automatic repeat requests.The value of response message can be ACK (Acknowledgement; Confirm to reply), NACK (Negative-acknowledgement; Deny replying) and DTX (Discontinuous Transmission, discontinuous transmission), wherein ACK representes that Data Receiving is correct; NACK representes the Data Receiving mistake, and DTX representes not receive data.
In third generation partner program (3
RdGeneration Partnership Project; 3GPP) evolution whole world terrestrial wireless inserts (Evolved Universal Terrestrial Radio Access; E-UTRA) up link of system (Uplink) direction; Subscriber equipment is through Physical Uplink Control Channel (Physical Uplink Control Channel, the response message that PUCCH) receives to the base station feedback downlink data.3GPP E-UTRA system is also referred to as Long Term Evolution (Long Term Evolution, LTE) system.
Further evolution and enhanced system LTE-A (Long Term Evolution-Advanced in the LTE system; Senior Long Term Evolution) in; Carrier aggregation (Carrier Aggregation) technology is selected and is used for supporting wideer bandwidth, with satisfy International Telecommunications Union for the 4th generation the communication technology the peak data rate requirement.In the carrier aggregation technology; The frequency spectrum of two or more member carriers (Component Carrier) is grouped together in together to obtain wideer transmission bandwidth; Wherein each member carrier can be configured to the compatible carrier wave of LTE system, and the frequency spectrum of each member carrier can be adjacent continuous frequency spectrum, also can be non-conterminous frequency spectrum or even the discontinuous spectrum in the different frequency bands in the identical frequency band; The LTE subscriber equipment can only insert one of them member carrier and carry out data transmit-receive, carries out data transmit-receive and the LTE-A subscriber equipment can insert a plurality of member carriers simultaneously according to its ability and business demand.Carrier aggregation technology also is spectrum aggregating (Spectrum Aggregation) technology sometimes, perhaps bandwidth expansion (Bandwidth Extension) technology.In the carrier aggregation technology, each member carrier has independently HARQ process, and can dispose different uplink and downlink member carrier numbers for the LTE-A subscriber equipment.
The LTE time division duplex (Time Division Duplex, TDD) with LTE-A TDD system in, according to its ratio of uplink subframe to downlink subframe, a plurality of descending sub frames can be associated with identical sub-frame of uplink and feed back response message.In LTE-A TDD system, when the LTE-A subscriber equipment inserts a plurality of member carrier simultaneously, need be at the response message of identical member carrier feedback from a plurality of descending sub frames of a plurality of member carriers.In the LTE-A TDD system; When subscriber equipment inserted a plurality of member carrier simultaneously, the base station was that subscriber equipment is provided with a main member carrier (Primary Component Carrier also claims Primary Cell; Be called for short Pcell); All the other member carriers then are called as auxilliary member carrier (Secondary Component Carrier also claims Secondary Cell, is called for short Scell).Subscriber equipment is received in the downlink data that a plurality of member carriers carry, and at the downlink data corresponding response message of main member carrier to base station feedback and the carrying of all member carriers.
LTE-A TDD system supports two kinds of response message feedback systems.First kind of mode is to use the channel of PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel) form 3 to transmit, and this mode supports maximum to transmit 20 bit response messages simultaneously.The second way is to use the channel of PUCCH form 1b, the mode that combines channel to select to transmit, and this mode supports maximum to transmit 4 bit response messages simultaneously.Second kind of response message feedback system also is called as channel selective mode usually.In channel selective mode; Because maximum can only be supported 4 bit response messages; In order to reduce the response message bit number that needs feedback; Usually can compress through binding (Bundling) feedback system of certain response message from a plurality of response messages of the identical descending sub frame of a plurality of member carriers and/or to a plurality of response messages from a plurality of descending sub frames of identical member carrier, and the information after the feedback compression.Wherein, Title is bound (Carrier Domain Bundling) to binding carrier domain from a plurality of response messages of the identical descending sub frame of a plurality of member carriers, claims to bind (Time Domain Bundling) to binding time-domain from a plurality of response messages of a plurality of descending sub frames of identical member carrier.Except PUCCH, response message also can pass through PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) feedback.For describing conveniently, the PUCCH that will be used to feed back response message is called responder link.The present invention mainly discusses the situation of the response message of a plurality of member carriers being carried out carrier domain and/or time-domain binding back feedback.
The feedback method of a kind of response message of prior art is: when subscriber equipment receives only PDSCH (the Physical Downlink Shared Channel that main member carrier carries; Physical Downlink Shared Channel) time; Use single carrier response message feedback system, for example the response message with a plurality of descending sub frames directly utilizes channel to select feedback; When subscriber equipment receives the PDSCH of at least one auxilliary member carrier carrying, after then elder generation carries out time-domain and/or carrier domain binding with response message, utilize channel to select to feed back.In LTE and LTE-A TDD system; PDSCH is used for transmitting downlink data; PDSCH is based on scheduling, and its schedule information (for example running time-frequency resource, data transmission format etc.) can be passed through PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) and indicate.
For the PDSCH that carries on the member carrier, if subscriber equipment does not successfully receive the PDCCH of its schedule information of indication, just can not remove to receive this PDSCH, promptly lose this PDSCH.After subscriber equipment is lost all PDSCH of auxilliary member carrier carrying, can only be retrieved as the responder link of the PDSCH distribution of main member carrier carrying, and use these responder links to select to feed back response message through channel.When subscriber equipment receives the PDSCH of at least one auxilliary member carrier carrying; If still be used for the responder link that the PDSCH of main member carrier carrying distributes; The channel of in channel is selected, electing be exactly be PDSCH that main member carrier carries distribute responder link the time; The base station does not know whether subscriber equipment has adopted time-domain and/or carrier domain to bind, thereby possibly can't correctly resolve the response message of subscriber equipment feedback.
For fear of this problem; In the prior art; When subscriber equipment receives the PDSCH of at least one auxilliary member carrier carrying, in channel is selected, can not be used for the responder link of the PDSCH distribution of main member carrier carrying; Cause the bigger responder link wasting of resources, increased the responder link resource overhead.In addition; When response message feeds back through PUSCH; Thereby the base station also can't be known subscriber equipment and whether lose the PDSCH of auxilliary member carrier carrying and can't know that whether subscriber equipment has adopted time-domain and/or carrier domain to bind, and also possibly can't correctly resolve the response message of subscriber equipment feedback.
Summary of the invention
The embodiment of the invention has proposed to feed back in a kind of carrier aggregation the method and apparatus of response message and reception response message.
On the one hand, the embodiment of the invention provides the method for feedback response message in a kind of carrier aggregation, and said method comprises: subscriber equipment receives physical down control signaling, and wherein said physical down control signaling indicates whether only in main member carrier scheduling; Said subscriber equipment receives the downlink data that member carrier carries, and generates corresponding response message; When said physical down control signaling indication during only in main member carrier scheduling, said subscriber equipment feeds back the response message of main member carrier in the said member carrier; When the indication of said physical down control signaling does not have only when main member carrier is dispatched; Said subscriber equipment carries out time-domain and/or carrier domain binding with the response message of main member carrier and auxilliary member carrier in the said member carrier, and the response message after the feedback binding.
On the other hand, the embodiment of the invention also provides the method that receives response message in a kind of carrier aggregation, and said method comprises: network equipment sends physical down control signaling, and wherein said physical down control signaling indicates whether only in main member carrier scheduling; Said network equipment sends the downlink data that said member carrier carries on member carrier; Said network equipment receives the response message of subscriber equipment feedback, and wherein, when said physical down control signaling indication during only in main member carrier scheduling, said response message is the response message of main member carrier in the said member carrier; When said physical down control signaling indication during not only in main member carrier scheduling, said response message carries out the response message that obtains after time-domain and/or carrier domain are bound for the response message to main member carrier and auxilliary member carrier in the said member carrier.
Another aspect, the embodiment of the invention also provide a kind of subscriber equipment, and said subscriber equipment comprises:
Transmit-Receive Unit; Be used to receive the physical down control signaling that network equipment sends; Wherein said physical down control signaling indicates whether only to dispatch at main member carrier, is used to receive the downlink data of member carrier carrying, and sends response message based on the instruction of processing unit;
Processing unit; Be used to generate the response message corresponding with said downlink data; And control signaling when said physical down and indicate only when main member carrier is dispatched; Be used for feeding back the response message of the main member carrier of said member carrier through said Transmit-Receive Unit; When said physical down control signaling indication during not only in main member carrier scheduling, be used for that response message with main member carrier of said member carrier and auxilliary member carrier carries out time-domain and/or carrier domain is bound, and the response message after binding through said Transmit-Receive Unit feedback.
Also have on the one hand, the embodiment of the invention also provides a kind of network equipment, and said equipment comprises:
Transmit-Receive Unit is used to send physical down control signaling, and wherein said physical down control signaling indicates whether only in main member carrier scheduling; On member carrier, send the downlink data that said member carrier carries, and be used for response message according to the command reception subscriber equipment feedback of processing unit;
Processing unit; Be used for indicating only when main member carrier is dispatched when said physical down control signaling; Instruct said Transmit-Receive Unit to receive the response message of main member carrier in the said member carrier; When said physical down control signaling indication during, instruct said Transmit-Receive Unit to receive response message to main member carrier and auxilliary member carrier in the said member carrier and carry out the response message that obtains after time-domain and/or carrier domain are bound not only in main member carrier scheduling.
The technical scheme of the embodiment of the invention; To LTE-A TDD or similar carrier aggregation system; Indicate whether only in main member carrier scheduling through physical down control signaling; So the concrete feedback system that subscriber equipment and base station can both definite response information, promptly feed back main member carrier response message, or feedback the response message of main member carrier and auxilliary member carrier is carried out the response message after time-domain and/or carrier domain are bound.No matter be to feed back response message through responder link or PUSCH, the base station can both know clearly the response message feedback system that the user adopts, thereby just can correctly parse the response message of subscriber equipment feedback.In addition, when feeding back response message through responder link, can avoid waste is the responder link resource that PDSCH that main member carrier carries distributes, and has reduced the responder link resource overhead, has remedied the deficiency of prior art in this technical field.
Description of drawings
Fig. 1 is a response message time-domain binding mode principle schematic;
Fig. 2 is the method flow diagram of feedback response message in the embodiment of the invention carrier aggregation;
Fig. 3 is that the embodiment of the invention is only dispatched sketch map at main member carrier by the DAI indication;
Fig. 4 is the schematic diagram of device of feedback response message in the embodiment of the invention carrier aggregation;
Fig. 5 is the method flow diagram that receives response message in the embodiment of the invention carrier aggregation;
Fig. 6 is the schematic diagram of device that receives response message in the embodiment of the invention carrier aggregation.
Embodiment
The embodiment of the invention has proposed to feed back in a kind of carrier aggregation the method and apparatus of response message and reception response message; This technical scheme binds again to the advanced line time territory of response message and/or carrier domain with the support of LTE-A TDD system that the mode of feedback is the basis; A kind of feedback system of response message has efficiently been proposed; Wherein, the physical down control signaling that subscriber equipment sends through receiving the base station can know whether indicated only in main member carrier scheduling.Particularly, only be meant, only carried the downlink data of subscriber equipment at main member carrier in main member carrier scheduling.Through this physical down control signaling; Subscriber equipment and base station can both definite response information concrete feedback system, promptly feed back main member carrier response message, or feedback the response message of main member carrier and auxilliary member carrier is carried out the response message after time-domain and/or carrier domain are bound.
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The embodiment of the invention at first proposes the method for feedback response message in a kind of carrier aggregation; Know whether only dispatch through receiving physical down control signaling at main member carrier; Correspondingly feed back the response message of main member carrier, or feedback is carried out the response message after time-domain and/or carrier domain are bound to the response message of main member carrier and auxilliary member carrier.Fig. 2 is the overall flow figure of present embodiment method.As shown in Figure 2, this method comprises:
S201, subscriber equipment receive physical down control signaling, and wherein said physical down control signaling indicates whether only in main member carrier scheduling;
S202, said subscriber equipment receive the downlink data that member carrier carries, and generate corresponding response message;
S203, when said physical down control signaling indication during only in main member carrier scheduling, said subscriber equipment feeds back the response message of main member carrier in the said member carrier; When the indication of said physical down control signaling does not have only when main member carrier is dispatched; Said subscriber equipment carries out time-domain and/or carrier domain binding with the response message of main member carrier and auxilliary member carrier in the said member carrier, and the response message after the feedback binding.
Alternatively, among the S201, said physical down control signaling is carried through PDCCH.
Alternatively, among the S201, said physical down control signaling be descending distribution indication (Downlink Assignment Index, DAI).
Alternatively, among the S201, said physical down control signaling is carried through the PDCCH of the downlink data transmission that is used to indicate main member carrier and carries.
Alternatively, among the S201, the DAI of said physical down control signaling for carrying through the PDCCH that is used to indicate the downlink data transmission that main member carrier carries, confirm that the indication of said physical down control signaling only in main member carrier scheduling, comprising:
When receiving a PDCCH, and DAI value wherein equals set point, perhaps receives a plurality of PDCCH, and the DAI value among said a plurality of PDCCH equates, or when being equal to set point, and subscriber equipment confirms that the base station has only been indicated to be dispatched at main member carrier;
And/or,
When receiving a PDCCH, and DAI value wherein is not equal to set point, perhaps receives a plurality of PDCCH, and the DAI value among said a plurality of PDCCH is when unequal, and subscriber equipment confirms that the base station indication is not only in main member carrier scheduling;
Wherein, said PDCCH is used to indicate the PDSCH transmission of main member carrier carrying.Alternatively, said set point is 4.
Alternatively; Among the S203; When said physical down control signaling indication during only in main member carrier scheduling, feed back the response message of main member carrier in the said member carrier, also comprise: when the time through PUSCH feedback response message; According to the number of the descending sub frame related with said PUSCH place subframe, the response message that said subscriber equipment will generate for the downlink data that each descending sub frame carried of main member carrier sends on said PUSCH.
Alternatively; Among the S203; When said physical down control signaling indication during, the response message of main member carrier and auxilliary member carrier in the said member carrier is carried out time-domain and/or carrier domain is bound, the response message after feedback is bound not only in main member carrier scheduling; Also comprise: when the time through responder link feedback response message; Be retrieved as the responder link that PDSCH that main member carrier and auxilliary member carrier carry distributes respectively, on the responder link that distributes, the response message that will carry out after time-domain and/or carrier domain are bound through channel selective mode feeds back to the base station.
Be example with schematic diagram shown in Figure 1 below, describe the method for present embodiment in detail.In Fig. 1, two member carriers of two line displays longitudinally are comprising a main member carrier (for example first row) and an auxilliary member carrier (for example second is capable); 4 each member carriers of box indicating in each row have 4 descending sub frames to be associated with identical sub-frame of uplink to feed back response message; Dotted ellipse in each row is represented the response message of a plurality of descending sub frames of each member carrier is carried out the time-domain binding; After carrying out the time-domain binding, the response message of each member carrier is compressed into 2 bits.In the prior art, the PDCCH that the PDSCH that carries for each member carrier of indication transmits, the value of DAI is carried out accumulated counts to the PDCCH number of sending in a plurality of descending sub frames.The DAI command field is made up of 2 bits, and the value of indication can be 1,2,3 or 4.In Fig. 1 example, the PDSCH transmission that has 3 PDCCH to indicate main member carrier to carry, the DAI value of wherein carrying is respectively 1,2 and 3; The PDSCH transmission that has 2 auxilliary member carriers of PDCCH indication to carry, the DAI value of wherein carrying is respectively 1 and 2.Need to prove, describe, only be used for the technical scheme of present embodiment is made an explanation, and be not to be used for the claim protection range is limited though present embodiment is example with Fig. 1.
Describe the concrete steps of present embodiment below in detail:
Step 1: subscriber equipment receives physical down control signaling, and wherein said physical down control signaling indicates whether only in main member carrier scheduling.
Subscriber equipment receives the physical down control signaling that the base station issues, and wherein said physical down control signaling indicates whether only in main member carrier scheduling.Preferably, said physical down control signaling is carried through PDCCH.In LTE-A TDD system, downlink data carries through PDSCH, and physical down control signaling is carried through PDCCH, and the schedule information of PDSCH can be indicated through PDCCH.Particularly, only be meant, only carried the downlink data of subscriber equipment, promptly only carried the PDSCH transmission of subscriber equipment at main member carrier at main member carrier in main member carrier scheduling.When only indicating whether through said physical down control signaling in main member carrier scheduling, increase signaling consumption for fear of in PDCCH, introducing new command field, preferably this function is accomplished in modification on existing command field basis.Said physical down control signaling can be a kind of specific scramble codes on the PDCCH; Also can be at least a command field of carrying among the PDCCH, and for example descending distribution indication (Downlink Assignment Index, DAI), redundancy versions.
When said physical down control signaling is a kind of specific scramble codes on the PDCCH,, then indicate subscriber equipment only in main member carrier scheduling if the physical down that receives control signaling has been used said specific scramble codes; Otherwise indication does not have subscriber equipment only in main member carrier scheduling.
When said physical down control signaling is redundancy versions, can reserves a kind of value state of redundancy versions and indicate only in main member carrier scheduling.If among the PDCCH that receives, the redundancy versions that has at least a PDCCH to carry is the value state of said reservation, then indication is only in main member carrier scheduling; Otherwise indication is not only in main member carrier scheduling.Perhaps, only indicate in main member carrier scheduling through certain specific value form of redundancy versions, for example the identical value of indication in a plurality of redundancy versions command fields.
When said physical down control signaling is DAI, can indicate only in main member carrier scheduling through DAI value state.If among the PDCCH that receives, the DAI that has at least a PDCCH to carry is the value state of said reservation, then indication is only in main member carrier scheduling; Otherwise indication is not only in main member carrier scheduling.Perhaps, only indicate in main member carrier scheduling through certain specific value form of DAI, for example the identical value of indication in a plurality of DAI command fields.
Preferably, said physical down control signaling is DAI.
Preferably, said physical down control signaling is carried through the PDCCH of the downlink data transmission that is used to indicate main member carrier and carries.Because said physical down signaling is used to indicate whether only in main member carrier scheduling, so can influence that introduce this signaling be limited in the PDCCH of the PDSCH transmission of the main member carrier carrying of indication.The PDCCH that the PDSCH that carries for the auxilliary member carrier of indication transmits, the redundancy versions that wherein comprises and DAI command field and scrambler etc. can be unaffected.Can minimize the influence of introducing after this signaling system design like this.Promptly; The PDCCH that the PDSCH that carries for the main member carrier of indication transmits; Subscriber equipment is after receiving these PDCCH; If find DAI value that at least one PDCCH wherein carries for the value state reserved, or find that the DAI value of carrying among these PDCCH equates, so know that the base station is only in main member carrier scheduling.
Preferably, in the PDCCH of the PDSCH transmission that the main member carrier of indication carries, indicate only in main member carrier scheduling through identical DAI value.That is, the DAI of said physical down control signaling for carrying through the PDCCH that is used to indicate the downlink data transmission that main member carrier carries confirms that the indication of said physical down control signaling is only in main member carrier scheduling; Comprise: when receiving a PDCCH; And DAI value wherein equals set point, perhaps receives a plurality of PDCCH, and the DAI value among said a plurality of PDCCH equates; Or when being equal to set point, subscriber equipment confirms that the base station indicated only in main member carrier scheduling; And/or when receiving a PDCCH, and DAI value wherein is not equal to set point, perhaps receives a plurality of PDCCH, and the DAI value among said a plurality of PDCCH is when unequal, and subscriber equipment confirms that the base station indication is not only in main member carrier scheduling; Wherein, said PDCCH is used to indicate the PDSCH transmission of main member carrier carrying.Preferably, said set point is 4.
As shown in Figure 3, in the embodiment of the invention, include three kinds of situation.First kind of situation; Subscriber equipment has only been dispatched at main member carrier in the base station, and only indicates and dispatch at main member carrier, and this moment, the DAI value of indication can be shown in Fig. 3 (a); Wherein the DAI value all is 4, and carries through the PDCCH that indicates main member carrier PDSCH transmission; Second kind of situation; Subscriber equipment has been dispatched at auxilliary member carrier in the base station; Only do not indicate in main member carrier scheduling, the DAI value of indication this moment can be shown in Fig. 3 (b), and wherein the value of DAI is carried out accumulated counts to the number of the PDCCH of the PDSCH transmission of indicating each member carrier and carrying; The third situation; Subscriber equipment has only been dispatched at main member carrier in the base station; But only do not indicate in main member carrier scheduling, the DAI value of indication this moment can be shown in Fig. 3 (c), and wherein the value of DAI is carried out accumulated counts to the number of the PDCCH of the PDSCH transmission of indicating main member carrier and carrying.Than prior art, first kind of situation in above-mentioned three kinds of situation is that the present invention increases proposition newly.
Step 2: said subscriber equipment receives the downlink data that member carrier carries, and generates corresponding response message.
In the LTE-A TDD system, downlink data carries through PDSCH.Subscriber equipment receives the PDSCH that member carrier carries, and generates response message.Particularly, in each descending sub frame of each member carrier, if receive PDSCH success, response message ACK of then corresponding generation; If receive the PDSCH failure, response message NACK of then corresponding generation; If do not receive PDSCH, response message DTX of then corresponding generation.When subscriber equipment knows that the base station has only been indicated in main member carrier scheduling, only receive the PDSCH of its carrying at main member carrier.
Step 3: when said physical down control signaling indication during only in main member carrier scheduling, said subscriber equipment feeds back the response message of main member carrier in the said member carrier; When the indication of said physical down control signaling does not have only when main member carrier is dispatched; Said subscriber equipment carries out time-domain and/or carrier domain binding with the response message of main member carrier and auxilliary member carrier in the said member carrier, and the response message after the feedback binding.
In LTE-A TDD system, subscriber equipment can also can pass through PUSCH to the base station feedback response message through responder link to the base station feedback response message.
When subscriber equipment knows that through said physical down control signaling the base station only indicated when main member carrier is dispatched, the response message of main member carrier is fed back to the base station.Particularly, when through responder link during, be retrieved as the responder link that PDSCH that main member carrier carries distributes, on the responder link that distributes, the response message of main member carrier fed back to the base station through channel selective mode to the base station feedback response message.When passing through PUSCH to the base station feedback response message; According to the number of the descending sub frame related with said PUSCH place subframe, the response message that subscriber equipment will generate for the downlink data that each descending sub frame carried of main member carrier sends on said PUSCH.In LTE TDD system, when response message passed through PUSCH to base station feedback, if said PUSCH indicates through PDCCH, the response message bit number that need feed back was so indicated by the DAI among the PDCCH of this PUSCH of indication; If said PUSCH is not through the PDCCH indication, the response message bit number that need feed back is so confirmed by the descending sub frame number of association.In the embodiment of the invention, response message when base station feedback, needs the response message bit number of feedback always to confirm based on the descending sub frame number of association through PUSCH.With Fig. 1 is example, promptly on PUSCH, always feeds back the response message of 4 sub-frame.Preferably, if said PUSCH, ignores the DAI indication among this PDCCH through the PDCCH indication.Alternatively, in the PDCCH of the said PUSCH of indication, always indicating the DAI value is 4.
In channel is selected,, will on corresponding responder link, send with the corresponding symbol to be sent of current time response message value state according to response message value that is provided with in advance in the system and the corresponding relation between responder link and the symbol to be sent.Response message value that is provided with and the corresponding relation between responder link and the symbol to be sent can be defined as the form that channel is selected form.As shown in table 1 below, just provide a kind of channel of 4 bit response messages and 4 responder links that is applicable to and selected form.Can find out from table 1,, from 4 responder links that obtain, select a responder link to transmit a symbol according to the value state of response message, the value of this symbol can be for+1 ,-1 ,+j or-j.With Fig. 1 is example, and the response message of four sub-frame of main member carrier is respectively HARQ-ACK (0)～HARQ-ACK (3), and the responder link of distribution label respectively is 1～4.
The channel of table 14 bit response message and 4 responder links is selected form
When subscriber equipment is known the base station indication not only in main member carrier scheduling through said physical down control signaling, the response message of main member carrier and auxilliary member carrier is carried out feeding back to the base station after time-domain and/or carrier domain are bound.Particularly; When passing through responder link to the base station feedback response message; Be retrieved as the responder link that PDSCH that main member carrier and auxilliary member carrier carry distributes respectively; On the responder link that distributes, the response message that will carry out after time-domain and/or carrier domain are bound through channel selective mode feeds back to the base station.With Fig. 1 and table 1 is example, and during channel was selected, the response message after main member carrier time-domain is bound was HARQ-ACK (0) and HARQ-ACK (1), and the responder link label of distribution is 1 and 2; Response message after auxilliary member carrier time-domain is bound is HARQ-ACK (2) and HARQ-ACK (3), and the responder link label of distribution is 3 and 4.When passing through PUSCH to the base station feedback response message, the response message that subscriber equipment will carry out after time-domain and/or the carrier domain binding sends on said PUSCH.
When through responder link during to the base station feedback response message, only indicated in main member carrier scheduling and indication not only in two kinds of situation of main member carrier scheduling for the base station, all be on the responder link of distribution, feed back through channel selective mode.For both of these case, can define identical channel and select form, for example all use the channel of table 1 to select form to 4 bit response messages in the previous example; Also can define different channel and select form, for example indication only uses the channel of LTE TDD system definition to select a form, indication only not have when main member carrier scheduling, to use the channel selection form (routine as shown in table 1) of the newly-increased definition of LTE-ATDD system when main member carrier scheduling.
Corresponding to the method for feedback response message in the embodiment of the invention carrier aggregation, the embodiment of the invention has also proposed the device of feedback response message in a kind of carrier aggregation, typically; This device can be subscriber equipment (User; Equipment, UE), Fig. 4 is the functional block diagram of this device; As shown in Figure 4, this device comprises:
Transmit-Receive Unit 401; Be used to receive the physical down control signaling that network equipment sends; Wherein said physical down control signaling indicates whether only to dispatch at main member carrier, is used to receive the downlink data of member carrier carrying, and sends response message based on the instruction of processing unit;
Alternatively, in the Transmit-Receive Unit 401, the physical down control signaling that is received is carried through PDCCH.
Alternatively, in the Transmit-Receive Unit 401, the physical down control signaling that is received is DAI.
Alternatively, in the Transmit-Receive Unit 401, the said physical down control signaling that is received is carried through the PDCCH of the downlink data transmission that is used to indicate main member carrier and carries.
Alternatively, the DAI of said physical down control signaling for carrying through said PDCCH; In Transmit-Receive Unit 401, receive a PDCCH; And DAI value wherein equals set point, perhaps receives a plurality of PDCCH, and the DAI value among said a plurality of PDCCH is identical; Or when being equal to set point, this processing unit 402 confirms that base stations have only been indicated to be dispatched at main member carrier.
And/or; In Transmit-Receive Unit 401, receive a PDCCH, and DAI value wherein is not equal to set point, perhaps receives a plurality of PDCCH; And the DAI value among said a plurality of PDCCH is not simultaneously, and this processing unit 402 confirms that the base station indication is not only in main member carrier scheduling.
Alternatively, said identical DAI value is 4.
Alternatively; Processing unit 402; Can also be used for the time through PUSCH feedback response message; According to the number of the descending sub frame related with said PUSCH place subframe, the response message that will generate for the downlink data that each descending sub frame carried of main member carrier sends on said PUSCH through this Transmit-Receive Unit 401.
Alternatively; Processing unit 402; Can also be used for the time, be retrieved as the responder link that PDSCH that main member carrier and auxilliary member carrier carry distributes respectively, on the responder link that distributes through responder link feedback response message; To carry out the response message after time-domain and/or carrier domain are bound through channel selective mode, feed back to the base station through this Transmit-Receive Unit 401.
The method and apparatus of present embodiment; To LTE-A TDD carrier aggregation system; When the advanced line time territory of response message and/or carrier domain being bound when feeding back again; Proposed a kind of feedback system of response message efficiently, the physical down control signaling that subscriber equipment sends through receiving the base station can know whether indicated only in main member carrier scheduling.Subscriber equipment and base station concrete feedback system of definite response information all like this, promptly feed back main member carrier response message, or feedback the response message of main member carrier and auxilliary member carrier is carried out the response message after time-domain and/or carrier domain are bound.When feeding back response message through responder link, can avoid waste is the responder link resource that PDSCH that main member carrier carries distributes, and reduces the responder link resource overhead.In addition, no matter be to feed back response message through responder link or PUSCH, the base station can both know clearly the response message feedback system that the user adopts, thereby just can correctly parse the response message of subscriber equipment feedback.
Corresponding to the method for feedback response message in the carrier aggregation embodiment illustrated in fig. 2, the embodiment of the invention also provides the method that receives response message in a kind of carrier aggregation, and Fig. 5 is the overall flow figure of this method, and is as shown in Figure 5, and this method comprises:
S501, transmission physical down control signaling, wherein said physical down control signaling indicate whether only in main member carrier scheduling;
The downlink data of S502, its carrying of transmission on member carrier;
S503, receive response message, wherein,, receive the response message of main member carrier in the said member carrier when said physical down control signaling indication during only in main member carrier scheduling; When said physical down control signaling indication during, receive response message to main member carrier and auxilliary member carrier in the said member carrier and carry out the response message that obtains after time-domain and/or carrier domain are bound not only in main member carrier scheduling.
Alternatively, among the S501, said physical down control signaling is carried through PDCCH.
Alternatively, among the S501, said physical down control signaling is DAI.
Alternatively, among the S501, said physical down control signaling is carried through the PDCCH of the downlink data transmission that is used to indicate main member carrier and carries.
Alternatively, among the S501, the DAI of said physical down control signaling for carrying through the PDCCH that is used to indicate the downlink data transmission that main member carrier carries; When being set, said physical down control signaling is used for indication only when main member carrier is dispatched; Comprise: when sending a PDCCH, the DAI value that is provided with wherein equals set point, when sending a plurality of PDCCH; The DAI value that is provided with among said a plurality of PDCCH equates; Or be equal to set point, wherein, the PDSCH that said PDCCH is used to indicate main member carrier to carry transmits.Alternatively, said set point is 4.
Alternatively; Among the S503; When said physical down control signaling indication during only in main member carrier scheduling, receive the response message of main member carrier in the said member carrier, also comprise: when when PUSCH receives response message; According to the number of the descending sub frame related, on said PUSCH, receive the response message of the downlink data that each descending sub frame carried of main member carrier with said PUSCH place subframe.
Alternatively; Among the S503; When the indication of said physical down control signaling does not have only when main member carrier is dispatched; Reception is carried out the response message that obtains after time-domain and/or carrier domain are bound to the response message of main member carrier and auxilliary member carrier in the said member carrier, also comprises: when when responder link receives response message, be retrieved as the responder link that PDSCH that main member carrier and auxilliary member carrier carry distributes respectively; On the responder link that distributes, receive the response message that obtains after said time-domain and/or the carrier domain binding according to channel selective mode.
Be example with schematic diagram shown in Figure 1 below, describe the concrete steps of present embodiment in detail.Need to prove, describe, only be used for the technical scheme of present embodiment is made an explanation, and be not to be used for the claim protection range is limited though present embodiment is example with Fig. 1.
Step 1: send physical down control signaling, wherein said physical down control signaling indicates whether only in main member carrier scheduling.
Physical down control signaling is sent to subscriber equipment in the base station, and wherein said physical down control signaling indicates whether only in main member carrier scheduling.Preferably, said physical down control signaling is carried through PDCCH.In LTE-A TDD system, downlink data carries through PDSCH, and physical down control signaling is carried through PDCCH, and the schedule information of PDSCH can be indicated through PDCCH.Particularly, only be meant, only carried the downlink data of subscriber equipment, promptly only carried the PDSCH transmission of subscriber equipment at main member carrier at main member carrier in main member carrier scheduling.When only indicating whether through said physical down control signaling in main member carrier scheduling, increase signaling consumption for fear of in PDCCH, introducing new command field, preferably this function is accomplished in modification on existing command field basis.Said physical down control signaling can be a kind of specific scramble codes on the PDCCH; Also can be at least a command field of carrying among the PDCCH, and for example descending distribution indication (Downlink Assignment Index, DAI), redundancy versions.
When said physical down control signaling is a kind of specific scramble codes on the PDCCH,, then indicate subscriber equipment only in main member carrier scheduling if the physical down that receives control signaling has been used said specific scramble codes; Otherwise indication does not have subscriber equipment only in main member carrier scheduling.
When said physical down control signaling is redundancy versions, can reserves a kind of value state of redundancy versions and indicate only in main member carrier scheduling.If among the PDCCH that receives, the redundancy versions that has at least a PDCCH to carry is the value state of said reservation, then indication is only in main member carrier scheduling; Otherwise indication is not only in main member carrier scheduling.Perhaps, only indicate in main member carrier scheduling through certain specific value form of redundancy versions, for example the identical value of indication in a plurality of redundancy versions command fields.
When said physical down control signaling is DAI, can indicate only in main member carrier scheduling through DAI value state.If among the PDCCH that receives, the DAI that has at least a PDCCH to carry is the value state of said reservation, then indication is only in main member carrier scheduling; Otherwise indication is not only in main member carrier scheduling.Perhaps, only indicate in main member carrier scheduling through certain specific value form of DAI, for example the identical value of indication in a plurality of DAI command fields.
Preferably, said physical down control signaling is DAI.
Preferably, said physical down control signaling is carried through the PDCCH of the downlink data transmission that is used to indicate main member carrier and carries.Because said physical down signaling is used to indicate whether only in main member carrier scheduling, so can influence that introduce this signaling be limited in the PDCCH of the PDSCH transmission of the main member carrier carrying of indication.The PDCCH that the PDSCH that carries for the auxilliary member carrier of indication transmits, the redundancy versions that wherein comprises and DAI command field and scrambler etc. can be unaffected.Can minimize the influence of introducing after this signaling system design like this.Promptly; The PDCCH that the PDSCH that carries for the main member carrier of indication transmits; In these PDCCH; The base station be provided with DAI value that at least one PDCCH wherein carries for the value state reserved, or the DAI value of carrying among these PDCCH be set equate, just can indicate subscriber equipment only to dispatch at main member carrier.
Preferably, in the PDCCH of the PDSCH transmission that the main member carrier of indication carries, indicate only in main member carrier scheduling through identical DAI value.Promptly; The DAI of said physical down control signaling for carrying through the PDCCH that is used to indicate the downlink data transmission that main member carrier carries when said physical down control signaling being set being used for indication only in main member carrier scheduling, comprising: when sending a PDCCH; The DAI value that is provided with wherein equals set point; When sending a plurality of PDCCH, the DAI value that is provided with among said a plurality of PDCCH equates, or is equal to set point; Wherein, said PDCCH is used to indicate the PDSCH transmission of main member carrier carrying.Alternatively, said set point is 4.When said physical down control signaling being set being used for indication, can carry out after the accumulated counts DAI value being set to the number of the PDCCH that indicates the PDSCH transmission that each member carrier carries not only in main member carrier scheduling.
As shown in Figure 3, in the embodiment of the invention, include three kinds of situation.First kind of situation; Subscriber equipment has only been dispatched at main member carrier in the base station, and only indicates and dispatch at main member carrier, and this moment, the DAI value of indication can be shown in Fig. 3 (a); Wherein the DAI value all is 4, and carries through the PDCCH that indicates main member carrier PDSCH transmission; Second kind of situation; Subscriber equipment has been dispatched at auxilliary member carrier in the base station; Only do not indicate in main member carrier scheduling, the DAI value of indication this moment can be shown in Fig. 3 (b), and wherein the value of DAI is carried out accumulated counts to the number of the PDCCH of the PDSCH transmission of indicating each member carrier and carrying; The third situation; Subscriber equipment has only been dispatched at main member carrier in the base station; But only do not indicate in main member carrier scheduling, the DAI value of indication this moment can be shown in Fig. 3 (c), and wherein the value of DAI is carried out accumulated counts to the number of the PDCCH of the PDSCH transmission of indicating main member carrier and carrying.Than prior art, first kind of situation in above-mentioned three kinds of situation is that the present invention increases proposition newly.
Step 2: the downlink data that on member carrier, sends its carrying.
In the LTE-A TDD system, downlink data carries through PDSCH.Particularly, in each descending sub frame of each member carrier,, then send PDSCH, otherwise do not send PDSCH if dispatched the PDSCH transmission.When only in main member carrier scheduling, only send the PDSCH of its carrying at main member carrier.
Step 3: receive response message, wherein,, receive the response message of main member carrier in the said member carrier when said physical down control signaling indication during only in main member carrier scheduling; When said physical down control signaling indication during, receive response message to main member carrier and auxilliary member carrier in the said member carrier and carry out the response message that obtains after time-domain and/or carrier domain are bound not only in main member carrier scheduling.
The PDSCH of its carrying is sent in the base station on member carrier, wherein PDSCH carries the downlink data that sends to subscriber equipment.In LTE-A TDD system, the base station can receive response message at responder link, also can receive response message at PUSCH.
When the base station has only been indicated in main member carrier scheduling through said physical down control signaling, receive the response message of the main member carrier that subscriber equipment feeds back.Particularly,, be retrieved as the responder link of the PDSCH distribution of main member carrier carrying, on the responder link that distributes, receive the response message of main member carrier according to channel selective mode when when responder link receives response message.In channel is selected, receive the symbol that subscriber equipment sends, according to the responder link and the symbol of reception and the corresponding relation between the response message value that are provided with in advance in the system, obtain with said responder link on the corresponding response message of symbol that receives.The responder link and the symbol of reception and the corresponding relation between the response message value that are provided with in advance; In system, be normally defined the form of form; Example channel as shown in table 1 is selected form, has wherein provided a kind of channel of 4 bit response messages and 4 responder links that is applicable to and has selected form.When PUSCH receives response message,, on said PUSCH, receive the response message of the downlink data that each descending sub frame carried of main member carrier according to the number of the descending sub frame related with said PUSCH place subframe.In LTE TDD system, when response message passed through PUSCH to base station feedback, if said PUSCH indicates through PDCCH, the response message bit number that need feed back was so indicated by the DAI among the PDCCH of this PUSCH of indication; If said PUSCH is not through the PDCCH indication, the response message bit number that need feed back is so confirmed by the descending sub frame number of association.In the embodiment of the invention, when PUSCH received response message, the response message bit number that needs to receive was always confirmed according to the descending sub frame number of association.Alternatively, if said PUSCH indicates through PDCCH, it is 4 that the DAI value always is set in this PDCCH.
When the base station through the indication of said physical down control signaling during not only in main member carrier scheduling, receive response message to main member carrier and auxilliary member carrier in the said member carrier and carry out the response message that obtains after time-domain and/or carrier domain are bound.Particularly; When responder link receives response message; Be retrieved as the responder link that PDSCH that main member carrier and auxilliary member carrier carry distributes respectively, on the responder link that distributes, receive the response message that obtains after said time-domain and/or carrier domain are bound according to channel selective mode.In channel is selected; Receive the symbol that subscriber equipment sends; According to the responder link and the symbol of reception and the corresponding relation between the response message value that are provided with in advance in the system; Obtain with said responder link on the corresponding response message of symbol that receives, the response message that is wherein obtained is that the response message to main member carrier and auxilliary member carrier carries out the response message that obtains after time-domain and/or carrier domain are bound.When PUSCH receives response message, receive response message to main member carrier and auxilliary member carrier and carry out the response message that obtains after time-domain and/or carrier domain are bound.
When at responder link reception response message, only do not dispatch two kinds of situation for only having indicated in main member carrier scheduling and indication at main member carrier, all be on the responder link that distributes, receive response message according to channel selective mode.For both of these case, can define identical channel and select form, for example all use the channel of table 1 to select form to 4 bit response messages in the previous example; Also can define different channel and select form, for example indication only uses the channel of LTE TDD system definition to select a form, indication only not have when main member carrier scheduling, to use the channel selection form (routine as shown in table 1) of the newly-increased definition of LTE-A TDD system when main member carrier scheduling.
Corresponding to the method that receives response message in the embodiment of the invention carrier aggregation, the embodiment of the invention has also proposed to receive in a kind of carrier aggregation the device of response message, and typically, this device can be a base station equipment, and Fig. 6 is the functional block diagram of this device.As shown in Figure 6, this device comprises:
Transmit-Receive Unit 601 is used to send physical down control signaling, and wherein said physical down control signaling indicates whether only in main member carrier scheduling; On member carrier, send the downlink data that said member carrier carries, and be used for response message according to the command reception subscriber equipment feedback of processing unit;
Alternatively, in the Transmit-Receive Unit 601, the physical down control signaling of being sent is carried through PDCCH.
Alternatively, in the Transmit-Receive Unit 601, the said physical down control signaling of being sent is DAI.
Alternatively, in the Transmit-Receive Unit 601, the said physical down control signaling of being sent is carried through the PDCCH of the downlink data transmission that is used to indicate main member carrier and carries.
Alternatively; Said physical down control signaling is during for the DAI that carries by said PDCCH; In the processing unit 602; When needs are indicated only when main member carrier is dispatched; The DAI value that is provided with among the said PDCCH equals setting value; DAI value among perhaps a plurality of said PDCCH is identical, and the PDCCH that sends after being provided with by this Transmit-Receive Unit 601; And/or, when needs indication during, can carry out after the accumulated counts DAI value being set to the number of the PDCCH of the PDSCH transmission of indicating each member carrier carrying not only in main member carrier scheduling.
Alternatively, said identical DAI value is 4.
Alternatively; When Transmit-Receive Unit 601 when PUSCH receives response message; The number of the descending sub frame that these processing unit 602 bases are related with said PUSCH place subframe instructs this Transmit-Receive Unit 601 on said PUSCH, to receive the response message of the downlink data that each descending sub frame carried of main member carrier.
Alternatively; When Transmit-Receive Unit 601 when responder link receives response message; This processing unit 602 is retrieved as the responder link that PDSCH that main member carrier and auxilliary member carrier carry distributes respectively; And instruct this Transmit-Receive Unit 601 on the responder link that distributes, receive the response message that obtains after said time-domain and/or the carrier domain binding according to channel selective mode.
The method and apparatus of present embodiment; To LTE-A TDD carrier aggregation system; When the advanced line time territory of response message and/or carrier domain being bound when feeding back again; Proposed a kind of feedback system of response message efficiently, whether the physical down control signaling of base station through sending has been indicated and has only been dispatched at main member carrier.Subscriber equipment and base station concrete feedback system of definite response information all like this, promptly feed back main member carrier response message, or feedback the response message of main member carrier and auxilliary member carrier is carried out the response message after time-domain and/or carrier domain are bound.When feeding back response message through responder link, can avoid waste is the responder link resource that PDSCH that main member carrier carries distributes, and reduces the responder link resource overhead.In addition, no matter be to feed back response message through responder link or PUSCH, the base station can both know clearly the response message feedback system that the user adopts, thereby just can correctly parse the response message of subscriber equipment feedback.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method; Be to instruct relevant hardware to accomplish through computer program; Described program can be stored in the computer read/write memory medium; This program can comprise the flow process like the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
Above embodiment is only in order to the technical scheme of the explanation embodiment of the invention, but not to its restriction; Although the embodiment of the invention has been carried out detailed explanation with reference to previous embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of each embodiment technical scheme of the essence disengaging embodiment of the invention of relevant art scheme.
Claims (16)
1. the method for feedback response message in the carrier aggregation is characterized in that said method comprises:
Subscriber equipment receives physical down control signaling, and wherein said physical down control signaling indicates whether only in main member carrier scheduling;
Said subscriber equipment receives the downlink data that member carrier carries, and generates corresponding response message;
When said physical down control signaling indication during only in main member carrier scheduling, said subscriber equipment feeds back the response message of main member carrier in the said member carrier; When the indication of said physical down control signaling does not have only when main member carrier is dispatched; Said subscriber equipment carries out time-domain and/or carrier domain binding with the response message of main member carrier and auxilliary member carrier in the said member carrier, and the response message after the feedback binding.
2. method according to claim 1 is characterized in that, also comprises:
Said physical down control signaling is carried through physical downlink control channel PDCCH; And/or,
Said physical down control signaling is descending distribution indication DAI.
3. method according to claim 1 is characterized in that,
Said physical down control signaling is carried through the PDCCH of the downlink data transmission that is used to indicate main member carrier and carries.
4. method according to claim 3 is characterized in that,
The DAI of said physical down control signaling for carrying through said PDCCH;
Confirm that the indication of said physical down control signaling only in main member carrier scheduling, comprising:
When receiving a PDCCH, and DAI value wherein equals set point, perhaps receive a plurality of PDCCH, and the DAI value among said a plurality of PDCCH is identical, or when being equal to set point, and subscriber equipment confirms that the base station indicated only in main member carrier scheduling;
And/or,
Confirm that the indication of said physical down control signaling not only in main member carrier scheduling, comprising:
When receiving a PDCCH; And DAI value wherein is not equal to set point; Perhaps receive a plurality of PDCCH; And the DAI value among said a plurality of PDCCH is not simultaneously, and subscriber equipment is confirmed the base station indication not only in main member carrier scheduling, and wherein said PDCCH is used to indicate the PDSCH transmission of main member carrier carrying.
5. method according to claim 4 is characterized in that said set point is: 4.
6. method according to claim 1 is characterized in that, when said physical down control signaling indication during only in main member carrier scheduling, feeds back the response message of main member carrier in the said member carrier, also comprises:
When through Physical Uplink Shared Channel PUSCH feedback response message; According to the number of the descending sub frame related with said PUSCH place subframe, the response message that said subscriber equipment will generate for the downlink data that each descending sub frame carried of main member carrier sends on said PUSCH.
7. method according to claim 1; It is characterized in that; When the indication of said physical down control signaling does not have only when main member carrier is dispatched; The response message of main member carrier and auxilliary member carrier in the said member carrier is carried out time-domain and/or carrier domain binding, and the response message after feedback is bound also comprises:
When through responder link feedback response message; Be retrieved as the responder link that PDSCH that main member carrier and auxilliary member carrier carry distributes respectively; On the responder link that distributes, the response message that will carry out after time-domain and/or carrier domain are bound through channel selective mode feeds back to the base station.
8. receive the method for response message in the carrier aggregation, it is characterized in that said method comprises:
Network equipment sends physical down control signaling, and wherein said physical down control signaling indicates whether only in main member carrier scheduling;
Said network equipment sends the downlink data that said member carrier carries on member carrier;
Said network equipment receives the response message of subscriber equipment feedback, and wherein, when said physical down control signaling indication during only in main member carrier scheduling, said response message is the response message of main member carrier in the said member carrier; When said physical down control signaling indication during not only in main member carrier scheduling, said response message carries out the response message that obtains after time-domain and/or carrier domain are bound for the response message to main member carrier and auxilliary member carrier in the said member carrier.
9. method according to claim 8 is characterized in that, also comprises:
Said physical down control signaling is carried through physical downlink control channel PDCCH; And/or,
Said physical down control signaling is descending distribution indication DAI.
10. method according to claim 9 is characterized in that,
Said physical down control signaling is carried through the PDCCH of the downlink data transmission that is used to indicate main member carrier and carries.
11. method according to claim 10 is characterized in that,
The DAI of said physical down control signaling for carrying through said PDCCH;
Said physical down control signaling indicates whether only to dispatch at main member carrier, comprising:
When indication during only in main member carrier scheduling, the DAI value that said network equipment is provided with among the said PDCCH equals set point, and the DAI value among perhaps a plurality of said PDCCH is identical.
12. method according to claim 11 is characterized in that, said set point is: 4.
13. method according to claim 8 is characterized in that, when said physical down control signaling indication during only in main member carrier scheduling, receives the response message of main member carrier in the said member carrier, also comprises:
When PUSCH receives response message,, on said PUSCH, receive the response message of the downlink data that each descending sub frame carried of main member carrier according to the number of the descending sub frame related with said PUSCH place subframe.
14. method according to claim 8; It is characterized in that; When the indication of said physical down control signaling does not have only when main member carrier is dispatched; Reception is carried out the response message that obtains after time-domain and/or carrier domain are bound to the response message of main member carrier and auxilliary member carrier in the said member carrier, also comprises:
When responder link receives response message; Be retrieved as the responder link that PDSCH that main member carrier and auxilliary member carrier carry distributes respectively; On the responder link that distributes, receive the response message that obtains after said time-domain and/or the carrier domain binding according to channel selective mode.
15. a subscriber equipment is characterized in that, said subscriber equipment comprises:
Transmit-Receive Unit; Be used to receive the physical down control signaling that network equipment sends; Wherein said physical down control signaling indicates whether only to dispatch at main member carrier, is used to receive the downlink data of member carrier carrying, and sends response message based on the instruction of processing unit;
Processing unit; Be used to generate the response message corresponding with said downlink data; And control signaling when said physical down and indicate only when main member carrier is dispatched; Be used for feeding back the response message of the main member carrier of said member carrier through said Transmit-Receive Unit; When said physical down control signaling indication during not only in main member carrier scheduling, be used for that response message with main member carrier of said member carrier and auxilliary member carrier carries out time-domain and/or carrier domain is bound, and the response message after binding through said Transmit-Receive Unit feedback.
16. a network equipment is characterized in that, said equipment comprises:
Transmit-Receive Unit is used to send physical down control signaling, and wherein said physical down control signaling indicates whether only in main member carrier scheduling; On member carrier, send the downlink data that said member carrier carries, and be used for response message according to the command reception subscriber equipment feedback of processing unit;
Processing unit; Be used for indicating only when main member carrier is dispatched when said physical down control signaling; Instruct said Transmit-Receive Unit to receive the response message of main member carrier in the said member carrier; When said physical down control signaling indication during, instruct said Transmit-Receive Unit to receive response message to main member carrier and auxilliary member carrier in the said member carrier and carry out the response message that obtains after time-domain and/or carrier domain are bound not only in main member carrier scheduling.
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