CN102237982A - Acknowledgement/negative acknowledgement (ACK/NACK) transmission method and equipment for carrier aggregation system - Google Patents
Acknowledgement/negative acknowledgement (ACK/NACK) transmission method and equipment for carrier aggregation system Download PDFInfo
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Abstract
The invention discloses an acknowledgement/negative acknowledgement (ACK/NACK) transmission method for a carrier aggregation system. The method comprises that: user equipment receives control signaling in at least one sub-frame of a primary component carrier (PCC) and at least one secondary component carrier (SCC) by a physical downlink control channel (PDCCH); ACK/NACK corresponding to the PDCCH, requiring ACK/NACK feedback, of the at least one sub-frame is fed back in an identical uplink sub-frame; the user equipment generates bundled ACK/NACK information according to the received carrier type of the PDCCH; and the user equipment feeds the generated bundled ACK/NACK information back in the uplink sub-frame. In the embodiment of the invention, the bundled ACK/NACK information is generated according to the received carrier type of the PDCCH, and is fed back in the uplink sub-frame in a carrier aggregation occasion, thereby giving an ACK/NACK bundling transmission way in the carrier aggregation occasion.
Description
Technical field
The present invention relates to communication technical field, relate in particular to transmission method and the equipment of ACK/NAK under a kind of carrier aggregation system.
Background technology
At 3GPP (3rd Generation Partnership Project, third generation partner program) Rel-8TDD (Time Division Duplexing, time division duplex) in the system, support ACK (AcknowledgeCharacter, positive acknowledgement)/transmission of NAK (Negative Acknowledgment, Negative Acknowledgement) bundling (binding).
UE (User Equipment, subscriber equipment) receives the control information that the base station sends by PDCCH (Physical DL Control Channel, physical control channel).A PDCCH can carry a control information.Control information comprises down dispatch information (DL Grant), uplink scheduling information (UL Grant), and other control information.
Subscriber equipment need be at up feeding back ACK/NAK after receiving some PDCCH, and this PDCCH includes, but are not limited to DL Grant.The information of the downlink data transmission that DL Grant indication user is scheduled on PDSCH (PhysicalDownlink Shared Channel, Physical Downlink Shared Channel) comprises downlink data resource allocation, downlink data modulation coding information etc.After subscriber equipment receives DLGrant, mutually deserved PDSCH is carried out demodulation.If it is correct to receive PDSCH, the user need be at up feeding back ACK, otherwise feedback NAK.If subscriber equipment is not received the PDCCH that needs feeding back ACK/NAK, subscriber equipment is at up feedback DTX, and just subscriber equipment does not send any ACK/NAK.In the present invention, do not distinguish PDCCH, the control information of on described PDCCH, transmitting, and the PDSCH of described PDCCH control information correspondence.
For the TDD system, there be the sub-frame allocation structure of descending sub frame more than sub-frame of uplink.Therefore, sub-frame of uplink need transmit a plurality of descending in the ACK/NAK of PDCCH correspondences.If UE is operated under the single-stream transmission pattern, then each descending sub frame has a TB (Transport Block, transmission block) at most, i.e. the corresponding ACK/NAK bit of each descending sub frame.If UE is operated under the multi-streaming transmission mode, then each descending sub frame has two TB at most, i.e. corresponding two the ACK/NAK bits of each descending sub frame.Therefore, under multi-streaming transmission mode, a UE needs to feed back 2N ACK/NAK bit in sub-frame of uplink, and wherein N is in the number of the descending sub frame of a sub-frame of uplink correspondence.The descending sub frame of a sub-frame of uplink correspondence is determined by HARQ sequential (timing) herein.
For the limited UE of ascending power, can adopt the mode of ACK/NAK bundling, the ACK/NAK quantity of actual feedback is adjusted to 1 ACK/NAK bit (single-stream mode) or 2 ACK/NAK bits (multithread pattern).With Rel-8TDD ACK/NAK bundling shown in Figure 1 is example, and the ACK/NAK of the PDSCH correspondence in 4 descending sub frames need transmit in same sub-frame of uplink.Concrete, the working method of ACK/NAK bundling is for carrying out the logical AND operation for the corresponding ACK/NAK of each code word (codeword) of different descending sub frames, each code word is obtained the ACK/NAK feedback bits of a reality, be called Bundled ACK/NAK bit.The BundledACK/NAK bit need transmit in the sub-frame of uplink of correspondence.This sub-frame of uplink is that each corresponding descending sub frame is reserved the ACK/NAK resource, and the ACK/NAK resource corresponding UE of transmission Bundled ACK/NAK detects last descending sub frame of the PDCCH that needs the ACK/NAK feedback.
In the Rel-8 system, the transformat of ACK/NAK bundling is PUCCH (PhysicalUplink Control Channel, Physical Uplink Control Channel) format (form) 1a/1b, as shown in Figure 2.At 3GPP LTE (Long Term Evolution, Long Term Evolution) normal (normally) CP (Cyclic Prefix, Cyclic Prefix) in, a slot (time slot) comprises 7 SC-FDMA (SingleCarrier Frequency Division Multiple Access, single-carrier frequency division multiple access) symbo1 (symbol), wherein, [S0, S1 ..., S6] 7 SC-FDMA symbol among slot of expression; D represents the ACK/NAK information of required transmission.If 1 ACK/NAK bit, then d is a constellation point of BPSK (BinaryPhase Shift Keying, two-phase PSK); If 2 ACK/NAK bits, then d is a constellation point of QPSK (Quaternary Phase Shift Keying, quarternary phase-shift keying (QPSK)).
In addition, OFDM symbol[S0, S1, S5, S6] be used for transferring ACK/NAK data d, Wd=[Wd (0) Wd (1) Wd (2) Wd (3)] be the ACK/NAK data division spreading code (orthogonal cover, OC).In the LTE system, Wd can value is OCd0=[1111], OCd1=[1-11-1]; Perhaps, OCd2=[1-1-11].R is a pilot signal, and r=1.OFDMsymbol[S2, S3, S4] be used to transmit pilot tone r.Wr=[Wr (0) Wr (1) Wr (2)] be pilot portion spreading code (orthogonal cover, OC).In LTE, Wr can value OCr0=[111]; OCrl=[1 e
J2 π/3e
J4 π/3]; Perhaps, OCr2=[1 e
J4 π/3e
J2 π/3].A subframe is made up of two slot.Two slot that are transmitted in a subframe of ACK/NAK go up and repeat, as shown in Figure 2.
In 3GPP LTE-A (LTE-Advanced, LTE evolution), a plurality of descending carriers can condense together and be UE transmission data.For the limited UE of ascending power, need the ACK/NAK bundling scheme under the corresponding carrier aggregation scene of design.
But in realizing process of the present invention, the inventor finds to exist at least in the prior art following problem:
The transmission means that does not have ACK/NAK bundling under the clear and definite carrier aggregation scene at present in the prior art.
Summary of the invention
The embodiment of the invention provides transmission method and the equipment of ACK/NAK under a kind of carrier aggregation system, with under carrier aggregation scene, realizes the transmission course of ACK/NAK bundling.
In order to achieve the above object, the embodiment of the invention proposes the transmission method of positive acknowledgement ACK/ negative acknowledgement NAK under a kind of carrier aggregation system, comprising:
Subscriber equipment receives the control signaling by physical control channel PDCCH at least one subframe of main carrier PCC and at least one auxilliary carrier wave SCC; The ACK/NAK of the PDCCH correspondence that needs the ACK/NAK feedback of described at least one subframe feeds back in same sub-frame of uplink;
Described subscriber equipment generates bundled ACK/NAK information according to the carrier classes that receives PDCCH;
Described subscriber equipment feeds back the bundled ACK/NAK information of described generation in described sub-frame of uplink.
The embodiment of the invention proposes a kind of subscriber equipment, comprising:
Receiver module is used for receiving the control signaling by physical control channel PDCCH at least one subframe of main carrier PCC and at least one auxilliary carrier wave SCC; The ACK/NAK of the PDCCH correspondence that needs the ACK/NAK feedback of described at least one subframe feeds back in same sub-frame of uplink;
Generation module is used for generating bundled ACK/NAK information according to the carrier classes that receives PDCCH;
Transport module is used for the bundled ACK/NAK information in the described generation of described sub-frame of uplink feedback.
The embodiment of the invention proposes the transmission method of ACK/NAK under a kind of carrier aggregation system, comprising:
Network equipment sends control signaling to subscriber equipment by physical control channel PDCCH at least one subframe of main carrier PCC and at least one auxilliary carrier wave SCC; The ACK/NAK of the PDCCH correspondence that needs the ACK/NAK feedback of described at least one subframe feeds back in same sub-frame of uplink;
Described network equipment sends the PDCCH that needs the ACK/NAK feedback at least on described PCC in each transmission needs the subframe of PDCCH of ACK/NAK feedback;
Described network equipment receives the bundledACK/NAK information that described subscriber equipment feeds back in described sub-frame of uplink.
The embodiment of the invention proposes a kind of network equipment, comprising:
Sending module is used for sending control signaling to subscriber equipment by physical control channel PDCCH at least one subframe of main carrier PCC and at least one auxilliary carrier wave SCC; The ACK/NAK of the PDCCH correspondence that needs the ACK/NAK feedback of described at least one subframe feeds back in same sub-frame of uplink;
And in needing the subframe of PDCCH of ACK/NAK feedback, each transmission on described PCC, sends the PDCCH that needs the ACK/NAK feedback at least;
Receiver module is used for receiving the bundledACK/NAK information that described subscriber equipment feeds back at described sub-frame of uplink.
Compared with prior art, the present invention has the following advantages at least:
Under carrier aggregation scene, generate bundledACK/NAK information according to the carrier classes that receives PDCCH, and in sub-frame of uplink, feed back bundled ACK/NAK information, thereby provide the transmission means of ACK/NAK bundling under the carrier aggregation scene.
Description of drawings
In order to be illustrated more clearly in technical scheme of the present invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of prior art Rel-8TDD ACK/NAK bundling;
Fig. 2 is that the transformat of prior art ACK/NAK bundling is the schematic diagram of PUCCH format 1a/1b;
Fig. 3 is the transmission method schematic flow sheet of ACK/NAK under a kind of carrier aggregation system of providing of the embodiment of the invention one;
Fig. 4 is the transmission method schematic flow sheet of ACK/NAK under a kind of carrier aggregation system of providing of the embodiment of the invention two;
Fig. 5 is an employed application scenarios schematic diagram in the embodiment of the invention;
Fig. 6 is the transmission method schematic flow sheet of ACK/NAK under a kind of carrier aggregation system of providing of the embodiment of the invention three;
Fig. 7 is a kind of user device architecture schematic diagram that the embodiment of the invention provides;
Fig. 8 is a kind of network equipment structural representation that the embodiment of the invention provides.
Embodiment
Below in conjunction with the accompanying drawing among the present invention, the technical scheme among the present invention is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
In the LTE-A system, can a plurality of carrier waves of polymerization be UE transmission data jointly, and all corresponding ACK/NAK feedback of the transmission block TB on each carrier wave, and UE be after receiving a plurality of TB on a plurality of carrier waves, need be at a plurality of ACK/NAK bits of uplink.For the limited UE of ascending power, can adopt the mode of ACK/NAK bundling, reduce the actual ACK/NAK number of bits of feedback of UE.In the embodiment of the invention, realize the transmission course of ACK/NAK bundling under the TDD carrier aggregation scene.
The embodiment of the invention one provides the transmission method of ACK/NAK under a kind of carrier aggregation system, as shown in Figure 3, may further comprise the steps:
In the embodiment of the invention,, will be divided into following three kinds of situations at above-mentioned step 302 and step 303:
First kind of situation, described subscriber equipment generates bundledACK/NAK information according to the carrier classes that receives PDCCH, comprising: described subscriber equipment only detects the PDCCH that needs the ACK/NAK feedback on SCC at least one subframe that receives the PDCCH that needs the ACK/NAK feedback; The bundled ACK/NAK information that described subscriber equipment generates is discontinuous transmitting DTX.
At this moment, described subscriber equipment feeds back the bundledACK/NAK information of described generation in described sub-frame of uplink, comprising: described subscriber equipment is transmission bundledACK/NAK information in described sub-frame of uplink not; Promptly when the bundled ACK/NAK information of the described generation of feedback, do not transmit bundled ACK/NAK information.
Second kind of situation, described subscriber equipment generates bundledACK/NAK information according to the carrier classes that receives PDCCH, comprising: described subscriber equipment only detects the PDCCH that needs the ACK/NAK feedback on SCC at least one subframe that receives the PDCCH that needs the ACK/NAK feedback; The bundled ACK/NAK information that described subscriber equipment generates is NAK.
Described subscriber equipment feeds back the bundled ACK/NAK information of described generation in described sub-frame of uplink, comprising: the Physical Uplink Shared Channel PUSCH transmitted over resources bundled ACK/NAK information of described subscriber equipment in described sub-frame of uplink.
At this moment, the transfer resource that subscriber equipment needs on PUSCH distributes, i.e. UL grant.Subscriber equipment can receive UL grant by PDCCH.
The third situation, described subscriber equipment generates bundledACK/NAK information according to the carrier classes that receives PDCCH, comprising: described subscriber equipment all detects the PDCCH that needs the ACK/NAK feedback on described PCC in each receives the subframe of the PDCCH that needs the ACK/NAK feedback; Described subscriber equipment generates corresponding ACK/NAK information bit to each detected PDCCH of ACK/NAK feedback that needs; Described subscriber equipment obtains described bundled ACK/NAK information by described ACK/NAK information bit being carried out the logical AND operation.
Described subscriber equipment feeds back the bundled ACK/NAK information of described generation in described sub-frame of uplink, comprising: the Physical Uplink Control Channel PUCCH transmitted over resources described bundled ACK/NAK information of described subscriber equipment in the described sub-frame of uplink of described PCC; Wherein, detect last subframe of the PDCCH that needs the ACK/NAK feedback in corresponding described at least one subframe of described PUCCH resource.
Subscriber equipment is when producing bundled ACK/NAK, and need judge whether in described at least one subframe omission needs the PDCCH of ACK/NAK feedback.Subscriber equipment judges whether to lose the PDCCH that needs the ACK/NAK feedback by DAI (Downlink Assignment Indicator, descending distribution indication) the indicated value in territory of PDCCH.
Particularly, if subscriber equipment receives that the value of the DAI indication that two continuous subframes of the PDCCH that needs the ACK/NAK feedback are interior is discontinuous, subscriber equipment is judged at least one PDCCH that needs ACK/NAK to feed back of omission so.At this moment, subscriber equipment can feed back DTX at PUCCH, perhaps feeds back NAK on PUSCH.
As seen, the method that the application of the invention provides, under carrier aggregation scene, generate bundled ACK/NAK information according to the carrier classes that receives PDCCH, and in sub-frame of uplink, feed back bundled ACK/NAK information, thereby provide the transmission means of ACK/NAK bundling under the carrier aggregation scene.
The embodiment of the invention two provides the transmission method of ACK/NAK under a kind of carrier aggregation system, as shown in Figure 4, may further comprise the steps:
As seen, the method that the application of the invention provides, under carrier aggregation scene, generate bundled ACK/NAK information according to the carrier classes that receives PDCCH, and in sub-frame of uplink, feed back bundled ACK/NAK information, thereby provide the transmission means of ACK/NAK bundling under the carrier aggregation scene.
For the technical scheme that illustrates that more clearly the embodiment of the invention provides; the transmission method of ACK/NAK is discussed in detail under the carrier aggregation system that the embodiment of the invention is provided below in conjunction with a kind of concrete application scenarios; in embodiments of the present invention; network equipment includes but not limited to E-UTRAN; RNC (Radio Network Controller; radio network controller); NB (Node B; Node B); eNB; Relay; base station etc.; need to prove; this network equipment is not limited to the said equipment, and all are positioned at the equipment of network side all within protection range of the present invention.
Should be with under the scene, be transmission method at ACK/NAK bundling under the carrier aggregation system, should be with scene carrier aggregation system as shown in Figure 5, this carrier aggregation system comprises 5 carrier waves, be respectively CC (Component Carrier, member carrier) 1, CC2, CC3, CC4 and CC5, the ACK/NAK resource reservation of each carrier wave is identical with 3GPP Rel-8, and promptly the sub-frame of uplink on carrier wave need be that one or more corresponding on this carrier wave descending sub frame is reserved the ACK/NAK resource.
Need to prove, be operated in the UE under the carrier aggregation system, necessarily have and have only a PCC (primary CC, main carrier), and for the TDD system, downlink main carrier to carry and up main carrier are same carrier wave.Under carrier aggregation system, remove main carrier, other carrier wave can be called SCC (secondary CC, auxilliary carrier wave).In addition, a UE who is operated under the carrier aggregation system, if the ascending power of this UE is limited, then the uplink ACK of this UE/NAK transmission can adopt the ACK/NAKbundling mode to transmit.
Based on above-mentioned situation, the embodiment of the invention three provides the transmission method of ACK/NAK under a kind of carrier aggregation system, as shown in Figure 6, may further comprise the steps:
In addition, network equipment also need send the PDCCH that needs the ACK/NAK feedback at least on PCC in each transmission needs the subframe of PDCCH of ACK/NAK feedback.
Concrete, when receiving this control signaling, this UE needs and will carry out the logical AND operation, generation bundledACK/NAK feedback bits corresponding to the ACK/NAK bit of a code word in different carrier and the different descending sub frames.If UE is operated under the single-stream transmission pattern, then UE produces a bundled ACK/NAK feedback bits, if UE is operated under multithread (for example, two code words) transmission mode, then UE produces two bundled ACK/NAK feedback bits.Wherein, 1 of this generation or 2 bundledACK/NAK feedback bits can transmit by using Rel-8PUCCH format 1a/1b.Further, for the UE that is operated under carrier aggregation and the ACK/NAK bundling pattern,, then can only use the PUCCH resource on the UL PCC to transmit if use PUCCH to send bundled ACK/NAK feedback bits.
For a UE who is operated under carrier aggregation and the ACK/NAK bundling pattern, if UE feeds back bundled AKC/NAK bit on PUCCH, then UE need use PUCCH format 1a/1b transmission bundled ACK/NAK bit on up PCC.And on PCC, detect the pairing ACK/NAK resource of last subframe of the PDCCH that needs the ACK/NAK feedback in corresponding described at least one subframe of the resource of the PUCCH format1a/1b that uses.
In the embodiment of the invention, in certain descending sub frame, according to the difference of the carrier wave that detects PDCCH/PDSCH, UE need determine to generate the behavior of ACK/NAK bundling.
Concrete, for a UE who is operated under carrier aggregation and the ACK/NAK bundling pattern, if UE (promptly receives at least one subframe of the PDCCH that needs the ACK/NAK feedback) on any one descending sub frame in described at least one subframe and only detect the PDCCH/PDSCH that needs the ACK/NAK feedback on SCC, and be not scheduled PUSCH transmission of this UE, then UE will not feed back any ACK/NAK bit, promptly the bundled ACK/NAK information of Sheng Chenging is DTX (Discontinuous Transmission, discontinuous transmission).
For a UE who is operated under carrier aggregation and the ACK/NAK bundling pattern, if UE (promptly receives at least one subframe of the PDCCH that needs the ACK/NAK feedback) on any one descending sub frame in described at least one subframe and only detect the PDCCH/PDSCH that needs the ACK/NAK feedback on SCC, and UE detects PDCCH/PDSCH on the PCC of another descending sub frame, and then UE need be at the PUCCH of UL PCC feedback NAK.Wherein, UE detects the pairing ACK/NAK resource of last subframe of the PDCCH that needs the ACK/NAK feedback on PCC in corresponding described at least one subframe of the PUCCH ACK/NAK resource that UL PCC uses.
For a UE who is operated under carrier aggregation and the ACK/NAK bundling pattern, if UE (promptly receives at least one subframe of the PDCCH that needs the ACK/NAK feedback) on any one descending sub frame in described at least one subframe and only detect the PDCCH/PDSCH that needs the ACK/NAK feedback on SCC, UE bundled ACK/NAK bit is set to NAK; The PUSCH transmission if UE is scheduled, then UE transmits bundled ACK/NAK bit on PUSCH.
For a UE who is operated under carrier aggregation and the ACK/NAK bundling pattern, if UE (being that each receives in the subframe of the PDCCH that needs the ACK/NAK feedback) in described at least one subframe on any one descending sub frame detects PDCCH/PDSCH on PCC, UE will generate corresponding ACK/NAK information bit to each detected PDCCH of ACK/NAK feedback that needs, and, obtain bundled ACK/NAK information by described ACK/NAK information bit being carried out the logical AND operation; And the PUCCH transmitted over resources bundled ACK/NAK information in the sub-frame of uplink of PCC; On PCC, detect the pairing ACK/NAK resource of last subframe of the PDCCH that needs the ACK/NAK feedback in corresponding described at least one subframe of this PUCCH resource.
Above-described UE only is embodiment according to the behavior that the carrier classes that detects PDCCH produces bundled ACK/NAK bit.Do not get rid of other concrete UE produce bundled ACK/NAK bit according to the carrier classes that detects PDCCH behavior.
As seen, the method that the application of the invention provides, under carrier aggregation scene, generate bundled ACK/NAK information according to the carrier classes that receives PDCCH, and in sub-frame of uplink, feed back bundled ACK/NAK information, thereby provide the transmission means of ACK/NAK bundling under the carrier aggregation scene.
Based on same inventive concept, a kind of subscriber equipment that the embodiment of the invention five provides as shown in Figure 7, comprising:
Receiver module 11 is used for receiving the control signaling by physical control channel PDCCH at least one subframe of main carrier PCC and at least one auxilliary carrier wave SCC; The ACK/NAK of the PDCCH correspondence that needs the ACK/NAK feedback of described at least one subframe feeds back in same sub-frame of uplink.
Generation module 12 is connected with receiver module 11, is used for generating bundled ACK/NAK information according to the carrier classes that receives PDCCH.
Transport module 13 is connected with generation module 12, is used for the bundled ACK/NAK information in the described generation of described sub-frame of uplink feedback.
In the embodiment of the invention, described generation module 12 specifically is used for, only detect the PDCCH that needs the ACK/NAK feedback at least one subframe that is receiving the PDCCH that needs the ACK/NAK feedback on SCC, the bundled ACK/NAK information of generation is discontinuous transmitting DTX.Described transport module 13 specifically is used for, not transmission bundledACK/NAK information in described sub-frame of uplink.
Described generation module 12 specifically is used for, and only detects the PDCCH that needs the ACK/NAK feedback at least one subframe that is receiving the PDCCH that needs the ACK/NAK feedback on SCC, and the bundled ACK/NAK information of generation is NAK.Described transport module 13 specifically is used for, the Physical Uplink Shared Channel PUSCH transmitted over resources bundledACK/NAK information in described sub-frame of uplink.
Described generation module 12 specifically is used for, in the subframe that receives the PDCCH that needs the ACK/NAK feedback at each, all on described PCC, detect the PDCCH that needs the ACK/NAK feedback, each detected PDCCH of ACK/NAK feedback that needs is generated corresponding ACK/NAK information bit, and, obtain described bundledACK/NAK information by described ACK/NAK information bit being carried out the logical AND operation.
Described transport module 13 specifically is used for, the described bundled ACK/NAK of the Physical Uplink Control Channel PUCCH transmitted over resources information in the described sub-frame of uplink of described PCC; Wherein, detect last subframe of the PDCCH that needs the ACK/NAK feedback in corresponding described at least one subframe of described PUCCH resource.
Wherein, each module of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
As seen, the equipment that the application of the invention provides, under carrier aggregation scene, generate bundled ACK/NAK information according to the carrier classes that receives PDCCH, and in sub-frame of uplink, feed back bundled ACK/NAK information, thereby provide the transmission means of ACK/NAK bundling under the carrier aggregation scene.
Based on same inventive concept, a kind of network equipment that the embodiment of the invention six provides as shown in Figure 8, comprising:
Sending module 21 is used for sending control signaling to subscriber equipment by physical control channel PDCCH at least one subframe of main carrier PCC and at least one auxilliary carrier wave SCC; The ACK/NAK of the PDCCH correspondence that needs the ACK/NAK feedback of described at least one subframe feeds back in same sub-frame of uplink;
And in needing the subframe of PDCCH of ACK/NAK feedback, each transmission on described PCC, sends the PDCCH that needs the ACK/NAK feedback at least.
Wherein, each module of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
As seen, the equipment that the application of the invention provides, under carrier aggregation scene, generate bundled ACK/NAK information according to the carrier classes that receives PDCCH, and in sub-frame of uplink, feed back bundled ACK/NAK information, thereby provide the transmission means of ACK/NAK bundling under the carrier aggregation scene.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, 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.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (16)
1. the transmission method of positive acknowledgement ACK/ negative acknowledgement NAK under the carrier aggregation system is characterized in that, comprising:
Subscriber equipment receives the control signaling by physical control channel PDCCH at least one subframe of main carrier PCC and at least one auxilliary carrier wave SCC; The ACK/NAK of the PDCCH correspondence that needs the ACK/NAK feedback of described at least one subframe feeds back in same sub-frame of uplink;
Described subscriber equipment generates bundled ACK/NAK information according to the carrier classes that receives PDCCH;
Described subscriber equipment feeds back the bundled ACK/NAK information of described generation in described sub-frame of uplink.
2. the method for claim 1 is characterized in that, described subscriber equipment generates bundled ACK/NAK information according to the carrier classes that receives PDCCH, comprising:
Described subscriber equipment only detects the PDCCH that needs the ACK/NAK feedback on SCC at least one subframe that receives the PDCCH that needs the ACK/NAK feedback;
The bundled ACK/NAK information that described subscriber equipment generates is discontinuous transmitting DTX.
3. method as claimed in claim 2 is characterized in that, described subscriber equipment feeds back the bundled ACK/NAK information of described generation in described sub-frame of uplink, comprising:
Described subscriber equipment is transmission bundled ACK/NAK information in described sub-frame of uplink not.
4. the method for claim 1, described subscriber equipment generates bundled ACK/NAK information according to the carrier classes that receives PDCCH, comprising:
Described subscriber equipment only detects the PDCCH that needs the ACK/NAK feedback on SCC at least one subframe that receives the PDCCH that needs the ACK/NAK feedback;
The bundled ACK/NAK information that described subscriber equipment generates is NAK.
5. method as claimed in claim 4 is characterized in that, described subscriber equipment feeds back the bundled ACK/NAK information of described generation in described sub-frame of uplink, comprising:
The Physical Uplink Shared Channel PUSCH transmitted over resources bundled ACK/NAK information of described subscriber equipment in described sub-frame of uplink.
6. the method for claim 1 is characterized in that, described subscriber equipment generates bundled ACK/NAK information according to the carrier classes that receives PDCCH, comprising:
Described subscriber equipment all detects the PDCCH that needs the ACK/NAK feedback on described PCC in each receives the subframe of the PDCCH that needs ACK/NAK feedback;
Described subscriber equipment generates corresponding ACK/NAK information bit to each detected PDCCH of ACK/NAK feedback that needs;
Described subscriber equipment obtains described bundled ACK/NAK information by described ACK/NAK information bit being carried out the logical AND operation.
7. method as claimed in claim 6 is characterized in that, described subscriber equipment feeds back the bundled ACK/NAK information of described generation in described sub-frame of uplink, comprising:
The Physical Uplink Control Channel PUCCH transmitted over resources described bundled ACK/NAK information of described subscriber equipment in the described sub-frame of uplink of described PCC; Wherein,
Detect last subframe of the PDCCH that needs the ACK/NAK feedback in corresponding described at least one subframe of described PUCCH resource.
8. a subscriber equipment is characterized in that, comprising:
Receiver module is used for receiving the control signaling by physical control channel PDCCH at least one subframe of main carrier PCC and at least one auxilliary carrier wave SCC; The ACK/NAK of the PDCCH correspondence that needs the ACK/NAK feedback of described at least one subframe feeds back in same sub-frame of uplink;
Generation module is used for generating bundled ACK/NAK information according to the carrier classes that receives PDCCH;
Transport module is used for the bundled ACK/NAK information in the described generation of described sub-frame of uplink feedback.
9. subscriber equipment as claimed in claim 8 is characterized in that,
Described generation module specifically is used for, and only detects the PDCCH that needs the ACK/NAK feedback at least one subframe that is receiving the PDCCH that needs the ACK/NAK feedback on SCC, and the bundled ACK/NAK information of generation is discontinuous transmitting DTX.
10. subscriber equipment as claimed in claim 9 is characterized in that,
Described transport module specifically is used for, not transmission bundled ACK/NAK information in described sub-frame of uplink.
11. subscriber equipment as claimed in claim 8 is characterized in that,
Described generation module specifically is used for, and only detects the PDCCH that needs the ACK/NAK feedback at least one subframe that is receiving the PDCCH that needs the ACK/NAK feedback on SCC, and the bundled ACK/NAK information of generation is NAK.
12. subscriber equipment as claimed in claim 11 is characterized in that,
Described transport module specifically is used for, the Physical Uplink Shared Channel PUSCH transmitted over resources bundled ACK/NAK information in described sub-frame of uplink.
13. subscriber equipment as claimed in claim 8 is characterized in that,
Described generation module specifically is used for, in the subframe that receives the PDCCH that needs the ACK/NAK feedback at each, all on described PCC, detect the PDCCH that needs the ACK/NAK feedback, each detected PDCCH of ACK/NAK feedback that needs is generated corresponding ACK/NAK information bit, and, obtain described bundled ACK/NAK information by described ACK/NAK information bit being carried out the logical AND operation.
14. subscriber equipment as claimed in claim 13 is characterized in that,
Described transport module specifically is used for, the described bundled ACK/NAK of the Physical Uplink Control Channel PUCCH transmitted over resources information in the described sub-frame of uplink of described PCC; Wherein,
Detect last subframe of the PDCCH that needs the ACK/NAK feedback in corresponding described at least one subframe of described PUCCH resource.
15. the transmission method of ACK/NAK is characterized in that under the carrier aggregation system, comprising:
Network equipment sends control signaling to subscriber equipment by physical control channel PDCCH at least one subframe of main carrier PCC and at least one auxilliary carrier wave SCC; The ACK/NAK of the PDCCH correspondence that needs the ACK/NAK feedback of described at least one subframe feeds back in same sub-frame of uplink;
Described network equipment sends the PDCCH that needs the ACK/NAK feedback at least on described PCC in each transmission needs the subframe of PDCCH of ACK/NAK feedback;
Described network equipment receives the bundledACK/NAK information that described subscriber equipment feeds back in described sub-frame of uplink.
16. a network equipment is characterized in that, comprising:
Sending module is used for sending control signaling to subscriber equipment by physical control channel PDCCH at least one subframe of main carrier PCC and at least one auxilliary carrier wave SCC; The ACK/NAK of the PDCCH correspondence that needs the ACK/NAK feedback of described at least one subframe feeds back in same sub-frame of uplink;
And in needing the subframe of PDCCH of ACK/NAK feedback, each transmission on described PCC, sends the PDCCH that needs the ACK/NAK feedback at least;
Receiver module is used for receiving the bundledACK/NAK information that described subscriber equipment feeds back at described sub-frame of uplink.
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