CN102237982B - 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 system, support ACK (AcknowledgeCharacter, positive acknowledgement) transmission of/NAK (Negative Acknowledgment, Negative Acknowledgement) bundling (binding).
UE (User Equipment, subscriber equipment) receives by PDCCH (Physical DL Control Channel, physical control channel) control information that the base station sends.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 to be at uplink feedback 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 indicating user is scheduled on PDSCH (PhysicalDownlink Shared Channel, Physical Downlink Shared Channel) comprises the distribution of downlink data resource, 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 to be at uplink feedback ACK, otherwise feedback NAK.If subscriber equipment is not received the PDCCH that needs feeding back ACK/NAK, subscriber equipment is at uplink feedback DTX, and namely subscriber equipment does not send any ACK/NAK.In the present invention, do not distinguish PDCCH, the control information of transmitting, and PDSCH corresponding to described PDCCH control information on described PDCCH.
For the TDD system, exist descending sub frame more than the sub-frame allocation structure of sub-frame of uplink.Therefore, a sub-frame of uplink need to transmit ACK/NAK corresponding to a plurality of descending interior PDCCH.If UE is operated under the single-stream transmission pattern, each descending sub frame has at most a TB (Transport Block, transmission block), i.e. the corresponding ACK/NAK bit of each descending sub frame.If UE is operated under multi-streaming transmission mode, each descending sub frame has at most two TB, 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 descending sub frame corresponding to sub-frame of uplink.A descending sub frame corresponding to sub-frame of uplink 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).Take Rel-8TDD ACK/NAK bundling shown in Figure 1 as example, ACK/NAK corresponding to PDSCH in 4 descending sub frames need to transmit in same sub-frame of uplink.Concrete, the working method of ACK/NAK bundling is for carrying out the logical AND operation for ACK/NAK corresponding to 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 to 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 in slot of expression; D represents the ACK/NAK information of required transmission.If 1 ACK/NAK bit, d is a constellation point of BPSK (BinaryPhase Shift Keying, two-phase PSK); If 2 ACK/NAK bits, d is a constellation point of QPSK (Quaternary Phase Shift Keying, quarternary phase-shift keying (QPSK)).
In addition, OFDM symbol[S0, S1, S5, S6] for transferring ACK/NAK data d, Wd=[Wd (0) Wd (1) Wd (2) Wd (3)] be the spreading code (orthogonal cover, OC) of ACK/NAK data division.In the LTE system, Wd can value is OCd0=[1111], OCd1=[1-11-1]; Perhaps, OCd2=[1-1-11].R is pilot signal, and r=1.OFDMsymbol[S2, S3, S4] for transmission pilot tone r.Wr=[Wr (0) Wr (1) Wr (2)] be the spreading code (orthogonal cover, OC) of pilot portion.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 comprised of two slot.The transmission of ACK/NAK repeats on two slot of a subframe, as shown in Figure 2.
In 3GPP LTE-A (LTE-Advanced, LTE evolution), a plurality of descending carriers can condense together and be the UE the transmission of 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 prior art following problem:
Do not have at present the transmission means of ACK/NAK bundling under clear and definite carrier aggregation scene in prior art.
Summary of the invention
The embodiment of the present invention provides transmission method and the equipment of ACK/NAK under a kind of carrier aggregation system, with under carrier aggregation scene, realizes the transmitting procedure of ACK/NAK bundling.
In order to achieve the above object, the embodiment of the present invention proposes the transmission method of positive acknowledgement ACK/ negative acknowledgement NAK under a kind of carrier aggregation system, comprising:
Subscriber equipment receives control signal by physical control channel PDCCH at least one subframe of main carrier PCC and at least one auxiliary carrier wave SCC; The ACK/NAK corresponding to PDCCH 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 present invention proposes a kind of subscriber equipment, comprising:
Receiver module is used for receiving control signal by physical control channel PDCCH at least one subframe of main carrier PCC and at least one auxiliary carrier wave SCC; The ACK/NAK corresponding to PDCCH 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 present 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 auxiliary carrier wave SCC; The ACK/NAK corresponding to PDCCH 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 within 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 present 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 auxiliary carrier wave SCC; The ACK/NAK corresponding to PDCCH that needs the ACK/NAK feedback of described at least one subframe feeds back in same sub-frame of uplink;
And within needing the subframe of PDCCH of ACK/NAK feedback, each transmission sends at least the PDCCH that needs the ACK/NAK feedback on described PCC;
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 feed back bundled ACK/NAK information in sub-frame of uplink, thereby provide the transmission means of ACK/NAK bundling under carrier aggregation scene.
Description of drawings
In order to be illustrated more clearly in technical scheme of the present invention, during the below will describe embodiment, the accompanying drawing of required use is done to introduce simply, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
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 present 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 present invention two;
Fig. 5 is the application scenarios schematic diagram that uses in the embodiment of the present 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 present invention three;
Fig. 7 is a kind of user device architecture schematic diagram that the embodiment of the present invention provides;
Fig. 8 is a kind of network equipment structural representation that the embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
In the LTE-A system, can a plurality of carrier waves of polymerization be a UE the transmission of data jointly, and the 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 to 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 present invention, realize the transmitting procedure of ACK/NAK bundling under the TDD carrier aggregation scene.
The embodiment of the present invention one provides the transmission method of ACK/NAK under a kind of carrier aggregation system, as shown in Figure 3, comprises the following steps:
In the embodiment of the present invention, for above-mentioned step 302 and step 303, will be divided into following three kinds of situations:
The first 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; Namely when the bundled ACK/NAK information of the described generation of feedback, do not transmit bundled ACK/NAK information.
The second 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, subscriber equipment need to have the transfer resource on PUSCH to distribute, 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 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 the PDCCH that needs the ACK/NAK feedback that each detects; 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, last subframe of the PDCCH that needs the ACK/NAK feedback detected in corresponding described at least one subframe of described PUCCH resource.
Subscriber equipment need to judge whether the undetected PDCCH that needs the ACK/NAK feedback in described at least one subframe when producing bundled ACK/NAK.Subscriber equipment judges whether to lose by DAI (Downlink Assignment Indicator, descending distribution indication) the indicated value in territory of PDCCH the PDCCH that needs the ACK/NAK feedback.
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 judges undetected at least one PDCCH that needs ACK/NAK to feed back 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 feed back bundled ACK/NAK information in sub-frame of uplink, thereby provide the transmission means of ACK/NAK bundling under carrier aggregation scene.
The embodiment of the present invention two provides the transmission method of ACK/NAK under a kind of carrier aggregation system, as shown in Figure 4, comprises the following 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 feed back bundled ACK/NAK information in sub-frame of uplink, thereby provide the transmission means of ACK/NAK bundling under carrier aggregation scene.
for the technical scheme that illustrates that more clearly the embodiment of the present invention provides, under the carrier aggregation system that the embodiment of the present invention is provided below in conjunction with a kind of concrete application scenarios, the transmission method of ACK/NAK is discussed in detail, 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, all are positioned at the equipment of network side all within protection range of the present invention.
Under this application scene, be the transmission method for ACK/NAK bundling under carrier aggregation system, this application 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 namely the sub-frame of uplink on carrier wave need to be that one or more descending sub frame corresponding on this carrier wave is reserved the ACK/NAK resource.
Need to prove, be operated in the UE under carrier aggregation system, necessarily have and only have 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, auxiliary carrier wave).In addition, a UE who is operated under carrier aggregation system, if the ascending power of this UE is limited, 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 present invention three provides the transmission method of ACK/NAK under a kind of carrier aggregation system, as shown in Figure 6, comprises the following steps:
In addition, network equipment also need to send the PDCCH that needs the ACK/NAK feedback at least on PCC within each transmission needs the subframe of PDCCH of ACK/NAK feedback.
Concrete, when receiving this control signal, this UE needs to carry out corresponding to the ACK/NAK bit of a code word in different carrier and different descending sub frame the logical AND operation, produces the bundledACK/NAK feedback bits.If UE is operated under the single-stream transmission pattern, UE produces a bundled ACK/NAK feedback bits, if UE is operated under multithread (for example, two code words) transmission mode, 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 ACK/NAK bundling pattern, if use PUCCH to send bundled ACK/NAK feedback bits, can only use the PUCCH resource on UL PCC to transmit.
For a UE who is operated under carrier aggregation and ACK/NAK bundling pattern, if UE feeds back bundled AKC/NAK bit on PUCCH, UE need to use PUCCH format 1a/1b transmission bundled ACK/NAK bit on up PCC.And the corresponding ACK/NAK resource of last subframe of the PDCCH that needs the ACK/NAK feedback detected in corresponding described at least one subframe of the resource of the PUCCH format1a/1b that uses on PCC.
In the embodiment of the present invention, in certain descending sub frame, according to the difference of the carrier wave that PDCCH/PDSCH detected, UE need to determine to generate the behavior of ACK/NAK bundling.
Concrete, for a UE who is operated under carrier aggregation and ACK/NAK bundling pattern, if UE (namely 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 the PDCCH/PDSCH that needs the ACK/NAK feedback only detected on SCC, and be not scheduled PUSCH transmission of this UE, UE will not feed back any ACK/NAK bit, the bundled ACK/NAK information that namely generates is DTX (Discontinuous Transmission, discontinuous transmission).
For a UE who is operated under carrier aggregation and ACK/NAK bundling pattern, if UE (namely 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 the PDCCH/PDSCH that needs the ACK/NAK feedback only detected on SCC, and UE detects PDCCH/PDSCH on the PCC of another descending sub frame, and UE need to be at the PUCCH of UL PCC feedback NAK.Wherein, UE detects the corresponding 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 ACK/NAK bundling pattern, if UE (namely 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 the PDCCH/PDSCH that needs the ACK/NAK feedback only detected on SCC, UE bundled ACK/NAK bit is set to NAK; The PUSCH transmission if UE is scheduled, UE transmits bundled ACK/NAK bit on PUSCH.
For a UE who is operated under carrier aggregation and 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 PDCCH that needs the ACK/NAK feedback that detects, and by described ACK/NAK information bit being carried out the logical AND operation, obtain bundled ACK/NAK information; And the PUCCH transmitted over resources bundled ACK/NAK information in the sub-frame of uplink of PCC; The corresponding ACK/NAK resource of last subframe of the PDCCH that needs the ACK/NAK feedback detected in corresponding described at least one subframe of this PUCCH resource on PCC.
Above-described UE only is embodiment according to the behavior that the carrier classes that PDCCH detected produces bundled ACK/NAK bit.Do not get rid of other concrete UE and produce the behavior of bundled ACK/NAK bit according to the carrier classes that PDCCH detected.
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 feed back bundled ACK/NAK information in sub-frame of uplink, thereby provide the transmission means of ACK/NAK bundling under carrier aggregation scene.
Based on same inventive concept, a kind of subscriber equipment that the embodiment of the present invention five provides as shown in Figure 7, comprising:
In the embodiment of the present invention, described generation module 12 specifically is used for, the PDCCH that needs the ACK/NAK feedback only detected 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 the PDCCH that needs the ACK/NAK feedback only detected 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, the PDCCH that needs the ACK/NAK feedback detected on described PCC in the subframe that receives the PDCCH that needs the ACK/NAK feedback at each, each PDCCH that needs the ACK/NAK feedback that detects is generated corresponding ACK/NAK information bit, and by described ACK/NAK information bit being carried out the logical AND operation, obtain described bundledACK/NAK information.
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, last subframe of the PDCCH that needs the ACK/NAK feedback detected in corresponding described at least one subframe of described PUCCH resource.
Wherein, the modules 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 feed back bundled ACK/NAK information in sub-frame of uplink, thereby provide the transmission means of ACK/NAK bundling under carrier aggregation scene.
Based on same inventive concept, a kind of network equipment that the embodiment of the present 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 auxiliary carrier wave SCC; The ACK/NAK corresponding to PDCCH that needs the ACK/NAK feedback of described at least one subframe feeds back in same sub-frame of uplink;
And within needing the subframe of PDCCH of ACK/NAK feedback, each transmission sends at least the PDCCH that needs the ACK/NAK feedback on described PCC.
Wherein, the modules 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 feed back bundled ACK/NAK information in sub-frame of uplink, thereby provide the transmission means of ACK/NAK bundling under 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 in a lot of situation, the former is better execution mode.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 a storage medium, comprise that some instructions are with so that a computer equipment (can be 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, the module in 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 in 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 the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number does not represent the quality of embodiment just to description.
Above disclosed be only several specific embodiment of the present invention, still, the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (16)
1. the transmission method of positive acknowledgement ACK/ negative acknowledgement NAK under a carrier aggregation system, is characterized in that, comprising:
Subscriber equipment receives control signal by physical downlink control channel PDCCH at least one subframe of main carrier PCC and at least one auxiliary carrier wave SCC; The ACK/NAK corresponding to PDCCH 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 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 the PDCCH that needs the ACK/NAK feedback that each detects;
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,
Last subframe of the PDCCH that needs the ACK/NAK feedback detected 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 control signal by physical downlink control channel PDCCH at least one subframe of main carrier PCC and at least one auxiliary carrier wave SCC; The ACK/NAK corresponding to PDCCH 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 the PDCCH that needs the ACK/NAK feedback only detected 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 the PDCCH that needs the ACK/NAK feedback only detected 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, the PDCCH that needs the ACK/NAK feedback detected on described PCC in the subframe that receives the PDCCH that needs the ACK/NAK feedback at each, each PDCCH that needs the ACK/NAK feedback that detects is generated corresponding ACK/NAK information bit, and by described ACK/NAK information bit being carried out the logical AND operation, obtain described bundled ACK/NAK information.
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,
Last subframe of the PDCCH that needs the ACK/NAK feedback detected in corresponding described at least one subframe of described PUCCH resource.
15. under a carrier aggregation system, the transmission method of ACK/NAK, is characterized in that, comprising:
Network equipment sends control signaling to subscriber equipment by physical downlink control channel PDCCH at least one subframe of main carrier PCC and at least one auxiliary carrier wave SCC; The ACK/NAK corresponding to PDCCH 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 within each transmission needs the subframe of PDCCH of ACK/NAK feedback;
Described network equipment receives the bundled ACK/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 downlink control channel PDCCH at least one subframe of main carrier PCC and at least one auxiliary carrier wave SCC; The ACK/NAK corresponding to PDCCH that needs the ACK/NAK feedback of described at least one subframe feeds back in same sub-frame of uplink;
And within needing the subframe of PDCCH of ACK/NAK feedback, each transmission sends at least the PDCCH that needs the ACK/NAK feedback on described PCC;
Receiver module is used for receiving the bundled ACK/NAK information that described subscriber equipment feeds back at described sub-frame of uplink.
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| CN103138900B (en) | 2011-11-30 | 2018-01-05 | 中兴通讯股份有限公司 | For the method and device of carrier wave response message feedback allocation resource |
| CN104012159A (en) * | 2011-12-22 | 2014-08-27 | 交互数字专利控股公司 | Control signaling in LTE carrier aggregation |
| CN103906251B (en) * | 2012-12-27 | 2017-09-29 | 普天信息技术研究院有限公司 | A kind of HARQ ACK feedback methods in LTE network under D2D patterns |
| RU2663730C2 (en) * | 2013-11-25 | 2018-08-09 | Сони Корпорейшн | Communication control device, communication control method and terminal device |
| CN112910607A (en) * | 2016-01-11 | 2021-06-04 | 中兴通讯股份有限公司 | Method and device for sending uplink control information |
| BR112018070527B1 (en) * | 2016-04-07 | 2020-12-01 | Telefonaktiebolaget Lm Ericsson (Publ) | method performed by a base station, method performed by user equipment, base station and user equipment |
| WO2018157407A1 (en) * | 2017-03-03 | 2018-09-07 | 广东欧珀移动通信有限公司 | Carrier aggregation-based feedback method and device |
| WO2019028703A1 (en) | 2017-08-09 | 2019-02-14 | Oppo广东移动通信有限公司 | Method for determining length of feedback response information and related product |
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