CN105611637A - Channel sending state indication method and terminal - Google Patents

Channel sending state indication method and terminal Download PDF

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Publication number
CN105611637A
CN105611637A CN201610084109.7A CN201610084109A CN105611637A CN 105611637 A CN105611637 A CN 105611637A CN 201610084109 A CN201610084109 A CN 201610084109A CN 105611637 A CN105611637 A CN 105611637A
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China
Prior art keywords
frequency range
channel
lbt
resource position
resource
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CN201610084109.7A
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CN105611637B (en
Inventor
周明宇
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Baicells Technologies Co Ltd
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Baicells Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0808—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using carrier sensing, e.g. as in CSMA
    • H04W74/0816—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using carrier sensing, e.g. as in CSMA carrier sensing with collision avoidance

Abstract

The invention discloses a channel sending state indication method and a terminal; wherein the method comprises following steps of obtaining resources on a second frequency band; indicating the channel sending state of the resources scheduled to a first frequency band through the resources on the second frequency band, wherein the first frequency band is the frequency band needing to carry out listen-before-talk LBT, and the second frequency band is the frequency band not needing to carry out the LBT or the frequency band occupying a current channel through the LBT. According to the method and the terminal provided by the invention, the technical problem of low uplink transmission efficiency in the prior art is solved; and the technical problem is resulted from the fact that an uplink transmission method cannot give the channel sending state accurately.

Description

Channel sends indicating means and the terminal of state
Technical field
The present invention relates to the communications field, send indicating means and the terminal of state in particular to a kind of channel.
Background technology
Along with the development of prior art, mobile communication was developed to for the 4th generation by the first generation. Wherein, in the 4th generation, movedThe standard of moving communication system is relatively uniform in the world, is the 3GPP (ThethirdGeneration of International Organization for standardizationPartnershipProject) Long Term Evolution (LongTermEvolution/LongTerm formulatingEvolution-Advanced, LTE/LTE-A), they are descending many directly into (Orthogonal based on orthogonal frequencyFrequencyDivisionMultipleAccess, OFDMA), up many directly into (Single based on single carrier frequency divisionCarrier – FrequencyDivisionMultipleAccess, SC-FDMA) access way, according to flexiblyBandwidth and adaptive modulation coding mode, reached descending peak rate 1Gbps, up peak rate 500MbpsHigh-speed transfer.
Because the mandate frequency spectrum that operator has is limited, therefore wish by utilizing unlicensed spectrum resource to expandThe capacity of LTE. Based on aforesaid demand, it is LAA in the standard of unauthorized frequency range work that 3GPP has formulated LTE(Licensed-AssistedAccess authorizes auxiliary access). Before the resource of unauthorized frequency range is used, need to enterRow channel-monitoring avoids interference and collides, and in the time judging current channel not by other CUs, just can take letterRoad, this mechanism is referred to as listem-before-talk (Listen-Before-Talk, LBT). In the LAA of LTER13Standardization downlink transmission method, also that standardization is up in the eLAA of LTER14 and MuLTEfire allianceTransmission method. Descending middle LBT and downlink transfer complete by base station side, and can send after LBT success at onceDownlink data (share for for example PDSCH, the abbreviation of PhysicalDownlinkSharedChannel by physical downChannel). From descending different, upstream data (for example PUSCH, the contracting of PhysicalUplinkSharedChannelWrite, i.e. Physical Uplink Shared Channel) and LBT by terminal UE (abbreviation of UserEquipment, i.e. user terminal)Complete, and uplink scheduling authorization signaling (ULgrant) by base station at least sending before 4ms, as shown in Figure 1,Authorize the ULgrant on carrier wave and unauthorized carrier wave all to send in the n-4 moment, be used to indicate unauthorized in the n momentThe resource location of PUSCH on carrier wave.
Because the ULgrant of eNB (abbreviation of evolvedNodeB, i.e. base station) at least passes at the PUSCH of UE4ms before defeated sends, and therefore eNB cannot estimate the LBT result of UE in the time sending ULgrant, cannot protectCard UE can send upstream data on the running time-frequency resource of scheduling, and for example, UE may be failed due to LBT, cannotSend PUSCH. For the up UE of the transmission in unauthorized frequency range, do not send uplinkThe reason of (DiscontinuousTransmission, DTX) comprising: 1) (E) PDCCH of traditional transmission ULgrant(PhysicalDownlinkControlChannel, i.e. Physical Downlink Control Channel) takes defeat; 2) unauthorized frequencyBefore the UE of Duan Duyou sends upstream data on the running time-frequency resource of scheduling, the LBT of UE is success not. AuthorizingFrequency range, eNB can judge DTX by the mode of energy measuring, but in unauthorized frequency range, because other equipment are sameCan busy channel former thereby cause the judgement of energy measuring inaccurate, also in the transmission of unauthorized frequency range due to interferenceWith the impact of collision, can cause the error probability of the ULgrant transmitting in unauthorized frequency range to rise, and then DTXProbability rises, and it (is that LBT is not adjusting that the competitive properties of unauthorized frequency range of while can cause the LBT probability of failure of UEThe success of degree transmission time) increase with channel number of users, can further improve DTX probability.
To sum up, eNB cannot effectively be identified in the DTX event that unauthorized frequency range probability of happening is larger, cannot distinguishThe situation of UEDTX (terminal does not send uplink) and PUSCH error of transmission. As eNB to UE due to DTXAnd do not have transmission resource location on signal separate timing, will inevitably cause CRC (CyclicRedundancyThe abbreviation of Check, i.e. cyclical redundancy check) check errors. If eNB thinks PUSCH error of transmissionCarry out buffer memory, initiate HARQ (HybridAutomaticRepeatreQuest, i.e. mixed automatic retransfer request) and weighWhen biography, can cause receiving next time the hydraulic performance decline merging; If when terminal does not send uplink, eNB buffer memoryThe signal sending for other equipment time, affect especially seriously, therefore cannot effectively carry out ascending HARQ processing.
Cannot correctly provide channel for ascending transmission method of the prior art and send state, and cause uplink effectThe problem that rate is low, not yet proposes effective solution at present.
Summary of the invention
Indicating means and terminal that the embodiment of the present invention provides a kind of channel to send state, at least to solve prior artIn ascending transmission method cannot correctly provide channel and send state, and cause the inefficient technical problem of uplink.
According to the embodiment of the present invention aspect, the indicating means that provides a kind of channel to send state, this instruction sideMethod comprises: obtain the resource in the second frequency range; Be scheduled for the first frequency range by the resource instruction in described the second frequency rangeThe channel of resource send state, wherein, described the first frequency range is first to listen the frequency range of sending out afterwards LBT, described theTwo frequency ranges are the frequency range of not carrying out the frequency range of described LBT or taking current channel by described LBT.
Further, be scheduled for the channel transmission state of the resource of the first frequency range by the resource instruction in the second frequency rangeComprise: terminal sends state according to the channel of the first resource position in described the first frequency range scheduling, described second frequentlyOn the Secondary resource position of the described terminal of correspondence of section, transmit described channel and send state.
Further, terminal sends state according to the channel of the first resource position in the first frequency range scheduling, second frequentlyOn the described Secondary resource position of the described terminal of correspondence of section, transmitting described channel transmission state comprises: according to uplink schedulingAuthorize Secondary resource position that ULgrant determines the Physical Uplink Control Channel PUCCH in described the second frequency range withAnd the first resource position of Physical Uplink Shared Channel PUSCH in described the first frequency range; Send out based on described channelSend state to determine whether to send data on described first resource position, and described in sending on described Secondary resource positionChannel sends state.
Further, determine whether to send data on described first resource position based on described channel transmission state, andOn described Secondary resource position, sending described channel transmission state comprises: when channel transmission state indicates described terminal firstWhile sending out LBT success after listening, on described first resource position, send data, and send out on corresponding Secondary resource positionSend LBT successfully to indicate; In the time that channel transmission state indicates described terminal first to listen to send out afterwards LBT failure, described theOn one resource location, do not send data, and on corresponding Secondary resource position, send the instruction of LBT failure.
Further, determine the physical uplink control letter in described the second frequency range according to uplink scheduling authorization ULgrantFirst of the Secondary resource position of road PUCCH and the Physical Uplink Shared Channel PUSCH in described the first frequency rangeResource location comprises: after indicating the initial border in current subframe, described ULgrant starts to transmit data,The first resource position of described PUSCH starts behind the initial border of described current subframe, and in described current subframeEnd boundary finish, described current subframe has a transmission opportunity; Described in determining according to described ULgrantThe Secondary resource position of PUCCH.
Further, the first resource position of described PUSCH starts behind the initial border of described current subframe, andFinish to comprise in the end boundary of described current subframe: first orthogonal frequency division multiplex technique of described current subframeOFDM symbol is for described LBT, and the first resource position of described PUSCH is at second of described current subframeOFDM sign-on, at last OFDM sign-off of described current subframe.
Further, determine that according to described ULgrant described Secondary resource position comprises: from described ULgrant instructionSecond OFDM sign-on of first time slot, in the case of using the form of PUCCHformat1,Use in first time slot orthogonal code that code length is 3 to carry out time domain code and divide, to determine the time domain of described Secondary resource positionResource; I OFDM sign-on of second time slot of indicating from described ULgrant, use code length is 5-iOrthogonal code carry out time domain code and divide, to determine the time-domain resource of described Secondary resource position, wherein, described i is 1 or 2;In the case of using the form of PUCCHformat2/3, directly first OFDM symbol is fallen in punching.
Further, determine the physical uplink control letter in described the second frequency range according to uplink scheduling authorization ULgrantFirst of the Secondary resource position of road PUCCH and the Physical Uplink Shared Channel PUSCH in described the first frequency rangeResource location comprises: before indicating the initial border in current subframe, described ULgrant starts to transmit data,The first resource position of described PUSCH starts on the initial border of described current subframe, and in described current subframeBefore end boundary, finish; Determine the Secondary resource position of described PUCCH according to described ULgrant.
Further, the first resource position of described PUSCH starts on the initial border of described current subframe, andBefore the end boundary of described current subframe, finish to comprise: last OFDM of a upper subframe of described current subframeSymbol is for LBT, and described first resource position is from first OFDM sign-on of described current subframe, describedThe penultimate OFDM sign-off of current subframe.
Further, determine the physical uplink control letter in described the second frequency range according to uplink scheduling authorization ULgrantFirst of the Secondary resource position of road PUCCH and the Physical Uplink Shared Channel PUSCH in described the first frequency rangeResource location comprises: after indicating the initial border in current subframe, described ULgrant starts to transmit data,The first resource position of described PUSCH starts behind the position for LBT of described current subframe, and works as describedThe end boundary of front subframe finishes, and described current subframe has multiple transmission opportunitys; Determine institute according to described ULgrantState the Secondary resource position of PUCCH.
Further, described transmission opportunity is two, and wherein, work as described the first resource position of described PUSCHBehind the position for LBT of front subframe, start to comprise: first OFDM of first time slot of described current subframeSymbol is for LBT, and described in first, transmission opportunity is from second OFDM symbol of first time slot of described current subframeNumber start, at last OFDM sign-off of described current subframe; Second time slot of described current subframeFirst OFDM symbol is for LBT, and second described transmission opportunity is from the of second time slot of described current subframeTwo OFDM sign-ons, at last OFDM sign-off of described current subframe.
Further, in described transmission opportunity be first OFDM of first time slot of two and described current subframeSymbol is in the situation of LBT, and described method also comprises: last of first time slot of described current subframeOFDM symbol is for LBT, and second described transmission opportunity is from first of second time slot of described current subframeOFDM sign-on, at last OFDM sign-off of described current subframe.
Further, determine that according to described ULgrant the Secondary resource position of described PUCCH comprises: at firstIn described transmission opportunity, in the case of using the form of PUCCHformat1, indicate from described ULgrantSecond OFDM sign-on of first time slot to use code length be that 3 orthogonal code is carried out time domain code and divided, secondIn individual time slot, using code length is that 4 orthogonal code is carried out time domain code and divided, to determine the time-domain resource of described Secondary resource position;In second described transmission opportunity, second OFDM symbol of second time slot of indicating from described ULgrant openedBegin, orthogonal code that to use code length be 3 is carried out time domain code and is divided, to determine the time-domain resource of described Secondary resource position.In the case of using the form of PUCCHformat2/3, directly first time slot and second time slot are fallen in punching respectivelyFirst interior OFDM symbol.
Further, determine whether to send data on described first resource position based on described channel transmission state, andOn described Secondary resource position, sending described channel transmission state comprises: when described terminal conveyer described in firstCan determine LBT success based on described channel transmission state before time, described in first, in transmission opportunity, send data,And on first and/or second time slot of described Secondary resource position, send described channel and send state; When described endWhen end is determined LBT failure based on described channel transmission state before transmission opportunity described in first, not in first instituteState and in transmission opportunity, send data, and described in sending on first and/or second time slot of described Secondary resource positionChannel sends state.
Further, when described terminal is determined based on described channel transmission state before transmission opportunity described in firstLBT when failure, on first time slot of described Secondary resource position, send described channel transmission state comprise following itOne: on first time slot of described Secondary resource position, send the prompting of LBT failure; In described Secondary resource positionFirst time slot on send the prompting of LBT failure, and wait for the next transmission opportunity of described first resource positionInstruction; On first time slot of described Secondary resource position, do not send any signal.
Further,, determine whether to send data on described first resource position based on described channel transmission state,And on described Secondary resource position, send described channel transmission state and comprise: when described terminal is second described transmissionWhile determining LBT success based on described channel transmission state before chance, in second described transmission opportunity, send numberAccording to, and on second time slot of described Secondary resource position, send LBT and successfully indicate; When described terminal is at secondWhile determining LBT failure based on described channel transmission state before described transmission opportunity, not transmission opportunity described in firstUpper transmission data, and on second time slot of described Secondary resource position, send LBT and unsuccessfully indicate.
Further, determine the physical uplink control letter in described the second frequency range according to uplink scheduling authorization ULgrantFirst of the Secondary resource position of road PUCCH and the Physical Uplink Shared Channel PUSCH in described the first frequency rangeResource location comprises: before indicating the initial border in current subframe, described ULgrant starts to transmit data,The first resource position of described PUSCH starts on the initial border of described current subframe, and in described current subframeBefore end boundary, finish, described current subframe has multiple transmission opportunitys; Described in determining according to described ULgrantThe Secondary resource position of PUCCH.
Further, on described Secondary resource position, sending described channel transmission state comprises: in described the second frequency rangeMain plot on Secondary resource position on adopt the multiplexing transmission mode of single-carrier frequency division multiple access; In MuLTEfire,On the first resource position of described the first frequency range, adopt the multiplexing transmission mode of block interleaving frequency division multiple access B-IFDMA.
Further, described method also comprises: when the main plot in MuLTEfire is during in described the first frequency range, in instituteState the first frequency range Fu community at the Physical Uplink Control Channel PUCCH of described main plot or strengthen physics upload controlThe described channel of the upper transmission of sPUCCH of channel ePUCCH or shortening sends state.
Further, on described Secondary resource position, to send described channel transmission state comprise: when on main plotWhen PUCCH need support the channel transmission state instruction on multiple auxiliary communities, by using PUCCHformat2/3,Use the mode of bitmap bitmap to indicate the channel on each auxiliary community to send state.
Further, in the case of using the form of PUCCHformat2/3, fall first by direct punchingThe mode of OFDM symbol is vacated a symbol of LBT; In the situation of form that uses PUCCHformat2/3Under, the mode of falling last OFDM symbol by direct punching is vacated a symbol of LBT.
Further, the mode of increase bitmap bitmap comprises one of the following: increase control message UCIbit number; IncreaseAdd the CRC mask of UCI; Send the numbering of multiple PUCCH by UCI; Described in sending in described PUSCHUCI。
Further, determining that on described first resource position, sending data comprises: the base accessing when described terminalStand while dispatching to the multiple carrier wave in described the first frequency range of described terminal by described ULgrant, from multiple institutes simultaneouslyState in carrier wave and select a carrier wave to send described data, and send out on second frequency resource location corresponding to the carrier wave of selectingSend described channel to send state.
Further, from multiple described carrier waves, selecting a carrier wave to send described data comprises: from multiple described carrier wavesThe highest carrier wave of middle selective channel quality sends described data.
According to the embodiment of the present invention on the other hand, also provide a kind of terminal, having comprised: acquiring unit, for obtainingResource in the second frequency range; Indicating member, is scheduled for first frequently for the resource instruction by described the second frequency rangeThe channel of the resource of section sends state, and wherein, described the first frequency range is first to listen the frequency range of sending out afterwards LBT, described inThe second frequency range is the frequency range of not carrying out the frequency range of described LBT or taking current channel by described LBT.
Further, described indicating member comprises: transport module, dispatch in described the first frequency range for terminal basisThe channel of first resource position sends state, uploads in the Secondary resource position of the described terminal of correspondence of described the second frequency rangeDefeated described channel sends state.
In embodiments of the present invention, by obtaining the resource in the second frequency range, and by the resource instruction in the second frequency rangeThe channel that is scheduled for the resource of the first frequency range sends state, can make eNB can accurately obtain in the time sending ULgrantKnow the LBT result of UE, thereby can ensure that UE can send upstream data on the running time-frequency resource of scheduling, avoidsThe impact of DTX on ascending HARQ performance, and then improved efficiency and the reliability of uplink, solved existingThere is the ascending transmission method in technology cannot correctly provide channel transmission state, and cause the inefficient problem of uplink.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, thisBright schematic description and description is used for explaining the present invention, does not form inappropriate limitation of the present invention. At accompanying drawingIn:
Fig. 1 is according to the schematic diagram of a kind of transfer of data of prior art;
Fig. 2 is the flow chart that sends the indicating means of state according to a kind of channel of the embodiment of the present invention;
Fig. 3 is the schematic diagram that sends state according to a kind of optional indicating channel of the embodiment of the present invention;
Fig. 4 is the schematic diagram that sends state according to a kind of optional indicating channel of the embodiment of the present invention;
Fig. 5 is the schematic diagram that sends state according to a kind of optional indicating channel of the embodiment of the present invention;
Fig. 6 is the schematic diagram that sends state according to a kind of optional indicating channel of the embodiment of the present invention;
Fig. 7 is the schematic diagram that sends state according to a kind of optional indicating channel of the embodiment of the present invention;
Fig. 8 is the schematic diagram that sends state according to a kind of optional indicating channel of the embodiment of the present invention;
Fig. 9 is according to the schematic diagram of a kind of terminal of the embodiment of the present invention.
Detailed description of the invention
In order to make those skilled in the art person understand better the present invention program, below in conjunction with in the embodiment of the present inventionAccompanying drawing, is clearly and completely described the technical scheme in the embodiment of the present invention, obviously, and described embodimentOnly the embodiment of a part of the present invention, instead of whole embodiment. Based on the embodiment in the present invention, abilityTerritory those of ordinary skill, not making the every other embodiment obtaining under creative work prerequisite, all should belong toThe scope of protection of the invention.
It should be noted that the term " first ", " in description of the present invention and claims and above-mentioned accompanying drawingTwo " be etc. for distinguishing similar object, and needn't be used for describing specific order or precedence. Should be appreciated that thisThe data that sample uses suitably can exchanged in situation, so as embodiments of the invention described herein can with exceptHere the order beyond those of diagram or description is implemented. In addition, term " comprises " and " having " and theyAny distortion, intention is to cover not exclusive comprising, for example, the process, the side that have comprised series of steps or unitThose steps or unit that method, system, product or equipment are not necessarily limited to clearly list, but can comprise do not have clearList or for these processes, method, product or equipment intrinsic other step or unit.
According to the embodiment of the present invention, the embodiment that provides a kind of channel to send the indicating means of state, need to illustrateCan in the computer system such as one group of computer executable instructions, hold in the step shown in the flow chart of accompanying drawingOK, and, although there is shown logical order in flow process, in some cases, can be to be different from hereinOrder carry out shown or described step.
Fig. 2 is the indicating means that sends state according to a kind of channel of the embodiment of the present invention, as shown in Figure 1, and the methodComprising can following steps:
Step S201, obtains the resource in the second frequency range.
Step S202, the channel that is scheduled for the resource of the first frequency range by the resource instruction in the second frequency range sends shapeState, wherein, the first frequency range is first to listen the frequency range of sending out afterwards LBT, the second frequency range is the frequency range of not carrying out LBTOr take the frequency range of current channel by LBT.
Adopt the embodiment of the present invention, be scheduled for the channel of the resource of the first frequency range by the resource instruction in the second frequency rangeTransmission state. By above-described embodiment, can make eNB in the time sending ULgrant, can accurately know the LBT of UEAs a result, thus can ensure UE can scheduling running time-frequency resource on send upstream data, avoided DTX to upThe impact of HARQ performance, and then improved efficiency and the reliability of uplink, solve of the prior art upTransmission method cannot correctly provide channel and send state, and causes the inefficient problem of uplink.
Particularly, terminal sends state according to the channel of the resource of dispatching in the first frequency range, in the correspondence of the second frequency rangeOn the transfer resource of this terminal, transmit this channel and send state, can, in the time that eNB sends ULgrant, pass through channelThe LBT result of transmission state instruction UE, is determining in the successful situation of LBT of UE, can ensure that UE is theOn the running time-frequency resource of dispatching in one frequency range, send upstream data.
In the above-described embodiments, by authorizing the resource of frequency range to indicate the up channel of unauthorized frequency range in current subframe to sendState, whether the resource that is also scheduled for unauthorized frequency range by authorizing the resource of frequency range to indicate successfully sends, and keeps awayExempt from the impact of DTX on ascending HARQ performance, thereby improved efficiency and the reliability of uplink.
In the above embodiment of the present invention, be scheduled for the resource of the first frequency range by the resource instruction in the second frequency rangeChannel transmission state comprise: terminal sends state according to the channel of the first resource position in the first frequency range scheduling,On the Secondary resource position of the counterpart terminal of the second frequency range, transmission channel sends state.
In a kind of optional embodiment, the first above-mentioned frequency range is first to listen the frequency range of sending out afterwards LBT, Ke YiweiUnauthorized frequency range; The second frequency range is the frequency range of not carrying out the frequency range of LBT or taking current channel by LBT, canThink mandate frequency range, the channel that is scheduled for the resource of the first frequency range by the resource instruction in the second frequency range sends stateComprise: terminal sends state according to the channel of the first resource position in unauthorized frequency range scheduling, authorizing the right of frequency rangeAnswer transmission channel on the Secondary resource position of terminal to send state.
In the above embodiment of the present invention, terminal sends according to the channel of the first resource position in the first frequency range schedulingState, on the Secondary resource position of the counterpart terminal of the second frequency range, transmission channel transmission state comprises: according to up tuneDegree authorize ULgrant determine the Physical Uplink Control Channel PUCCH in the second frequency range Secondary resource position andThe first resource position of Physical Uplink Shared Channel PUSCH in the first frequency range; Determine based on channel transmission stateWhether on first resource position, send data, and transmitting channel sends state on Secondary resource position.
Alternatively, terminal sends state according to the channel of the first resource position in unauthorized frequency range scheduling, is authorizing frequentlyOn the Secondary resource position of the counterpart terminal of section, transmission channel transmission state comprises: according to uplink scheduling authorization ULgrantDetermine and authorizing the Secondary resource position of the Physical Uplink Control Channel PUCCH in frequency range and in unauthorized frequency rangeThe first resource position of Physical Uplink Shared Channel PUSCH; Determine whether in the first money based on channel transmission stateOn source position, send data, and transmitting channel sends state on Secondary resource position.
Further, determine whether to send data on first resource position based on channel transmission state, and in the second moneyOn source position, transmitting channel transmission state comprises: first listen and send out afterwards LBT when successful when channel sends state indicating terminal,First resource sends data on position, and on corresponding Secondary resource position, sends LBT and successfully indicate; Work as channelTransmission state indicating terminal is first listened and is sent out afterwards LBT when failure, does not send data on first resource position, and in correspondenceOn Secondary resource position, send the instruction of LBT failure.
Particularly, according to uplink scheduling authorization ULgrant (CCE, the abbreviation of ControlChannelElement, controlChannel Elements processed) information instruction is corresponding to the Physical Uplink Control Channel PUCCH (Physical authorizing on frequency range main plotUplinkControlChannel, i.e. physical uplink control channel) resource number (be above-mentioned Secondary resourcePosition) and Physical Uplink Shared Channel PUSCH (PhysicalUplinkShared on unauthorized auxiliary communityChannel, i.e. Physical Uplink Shared Channel) resource location (being above-mentioned first resource position). Wherein, above-mentionedUplink scheduling authorization ULgrant can on first resource position or Secondary resource position, send.
Determine whether to send data on first resource position based on channel transmission state, and send out on Secondary resource positionGiving channel sends to the scheme of state to comprise:
When first listening in the subframe of scheduling, channel transmission state instruction UE sends out afterwards LBT when successful, in correspondenceOn the first resource position of PUSCH, send data, and send LBT on the Secondary resource position of corresponding PUCCHSuccessfully instruction;
When first listening in the subframe of scheduling, channel transmission state instruction UE sends out afterwards LBT when failed, in correspondenceOn the first resource position of PUSCH, do not send data, and send on the Secondary resource position of corresponding PUCCHThe instruction of LBT failure.
Concrete channel transmission state instruction can comprise: first listen in the subframe of scheduling when channel sends state indicating terminalWhen a rear LBT is unsuccessful, do not reattempt transmission next time; When channel sends state indicating terminal in the subframe of schedulingFirst listen and send out afterwards LBT when unsuccessful, continue to attempt transmission next time, until channel sends state indicating terminal in schedulingIn subframe, first listen and send out afterwards LBT success; And first listen afterwards and send out in the subframe of scheduling when channel sends state indicating terminalThree kinds of situations of LBT success.
By above-described embodiment, define based on channel transmission state and determine whether to send data on first resource position,And transmitting channel sends the scheme of state on Secondary resource position, thereby can accurately know LBT result, thereby protectCard is in the successful situation of LBT, and UE sends data to base station, to improve the efficiency of uplink.
In the above embodiment of the present invention, determine in the second frequency range (as authorized according to uplink scheduling authorization ULgrantFrequency range) on Physical Uplink Control Channel PUCCH Secondary resource position and in the first frequency range (as unauthorized frequencySection) on the first resource position of Physical Uplink Shared Channel PUSCH comprise: indicate at current son at ULgrantBehind the initial border of frame, start to transmit in the situation of data, the first resource position of PUSCH is at the initial line that rises of current subframeBehind boundary, start, and finish in the end boundary of current subframe, current subframe has a transmission opportunity; According to ULgrantDetermine the Secondary resource position of PUCCH.
Alternatively, the first resource position of PUSCH starts behind the initial border of current subframe, and in current subframeEnd boundary finishes to comprise: first orthogonal frequency division multiplex technique OFDM symbol of current subframe is used for LBT,The first resource position of PUSCH is at second OFDM sign-on of current subframe, at last of current subframeIndividual OFDM sign-off.
Further, determine that according to ULgrant Secondary resource position comprises: from first time slot of ULgrant instructionSecond OFDM sign-on, in the case of using the form of PUCCHformat1, in first time slotOrthogonal code that to use code length be 3 is carried out time domain code and is divided, to determine the time-domain resource of Secondary resource position; From ULgrantI the OFDM sign-on of second time slot of instruction, the orthogonal code that use code length is 5-i is carried out time domain code and is divided,To determine the time-domain resource of Secondary resource position, wherein, i is 1 or 2; At the form that uses PUCCHformat2/3Situation under, directly first OFDM symbol is fallen in punching.
Particularly, behind current subframe border, start the scene of transmission for PUSCH, also indicate at ULgrantPUSCH starts to transmit data behind the initial border of current subframe, and ULLBT (up LBT) is working asBehind the initial border of front subframe, first PUSCH starts behind the initial border of current subframe, and in current subframeEnd boundary finishes. In the situation that current subframe has a transmission opportunity, first OFDM of current subframe(abbreviation of OrthogonalFrequencyDivisionMultiple, i.e. orthogonal frequency division multiplex technique) symbol is for LBT(be specifically as follows 25 μ before second OFDM sign-on s), PUSCH is from second of current subframeOFDM sign-on transmission data, and in the end an OFDM sign-off transmits data. Be similar to CA (CarrierAggregation, i.e. carrier set) in determine PCell (Primarycell, i.e. main plot) according to DLGRANTThe method of upper PUCCH resource location, determines on PCell according to sending uplink scheduling authorization ULGRANT herePUCCH resource location. Wherein, authorize PUCCH on frequency range PCell at first slot (while being firstGap) from second OFDM sign-on (supposing to use PUCCHformat1 series), use code length is 3Orthogonal code is carried out time domain code and is divided, and PUCCH can be from first OFDM at second slot (i.e. second time slot)The beginnings such as symbol or second OFDM symbol or rear three OFDM symbols, using code length is 3 or 4 justHand over code to carry out time domain code and divide, to determine the Secondary resource position of PUCCH. At the lattice that use PUCCHformat2/3In the situation of formula, directly first OFDM symbol is fallen in punching. When LBT success, UE sends data at PUSCH,And sending LBT in PUCCH resource successfully indicates; When LBT failure, UE does not send data at PUSCH, andSending LBT in PUCCH resource unsuccessfully indicates.
As shown in table 1, can use that code length is 2, code length be 3 or the code length orthogonal code that is 4 carry out time domain code and divide.
Table 1
As shown in Figure 3, this embodiment is the scene that starts transmission for PUSCH behind current subframe border, comprisesHe Fu community, main plot, Liang Ge community all comprises 4 subframes (subframe 1, subframe 2, subframe 3 and subframe 4), mainSubframe 1 in community and subframe 4 comprise two time slots (first time slot and second time slot), and in two time slotsThe part of black represents the time-domain position of PUCCH, i.e. the Secondary resource position of above-mentioned PUCCH. This embodimentIn, use first OFDM symbol of subframe 1 to carry out LBT, and from second OFDM sign-on transmission numberAccording to, in the end OFDM sign-off transmission data. In the time of LBT success, the PUSCH of UEFu communitySend data, and successfully indicate at the PUCCH resource transmission LBT of first time slot and second time slot; Work as LBTWhen failure in,, the PUSCH of UEFu community does not send data, and at the PUCCH of first time slot and second time slotResource sends LBT and unsuccessfully indicates.
It should be noted that, can only indicate LBT state by the PUCCH of second slot, also, can be onlySend LBT state in the PUCCH of the second time slot resource. As shown in Figure 4, this embodiment comprises main plot and auxiliary littleDistrict, Liang Ge community all comprises 4 subframes (subframe 1, subframe 2, subframe 3 and subframe 4), the subframe in main plot1 and subframe 4 comprise two time slots (first time slot and second time slot), wherein, black in second time slotPart represents the time-domain position of PUCCH, i.e. the Secondary resource position of above-mentioned PUCCH. In this embodiment, makeCarry out LBT with first OFDM symbol of subframe 1, and from second OFDM sign-on transmission data,Last OFDM sign-off transmission data. Different from Fig. 3, in this embodiment, only pass through second slotIn PUCCH resource send LBT state. In the time of LBT success, the PUSCH of UEFu community sends data,And sending LBT in the PUCCH of second time slot resource successfully indicates; In the time of LBT failure, UEFu communityPUSCH does not send data, and unsuccessfully indicates at the PUCCH of second time slot resource transmission LBT.
By above-described embodiment, define in the situation that current subframe has a transmission opportunity, by authorizing frequency rangeOn the resource instruction channel that is scheduled for the resource of unauthorized frequency range send the scheme of state, thereby reach, eNB is existedWhile sending ULgrant, can accurately know the object of the LBT result of UE, improve the efficiency of uplink.
In the above embodiment of the present invention, determine in the second frequency range (as authorized according to uplink scheduling authorization ULgrantFrequency range) on Physical Uplink Control Channel PUCCH Secondary resource position and in the first frequency range (as unauthorized frequencySection) on the first resource position of Physical Uplink Shared Channel PUSCH comprise: indicate at current son at ULgrantBefore the initial border of frame, start to transmit in the situation of data, the first resource position of PUSCH is at the initial line that rises of current subframeBoundary starts, and finishes before the end boundary of current subframe; Determine the Secondary resource position of PUCCH according to ULgrantPut.
Further, the first resource position of PUSCH starts on the initial border of current subframe, and in current subframeBefore end boundary, finish to comprise: last OFDM symbol of a upper subframe of current subframe is for LBT, firstResource location is from first OFDM sign-on of current subframe, at the penultimate OFDM of current subframe symbolNumber finish.
Particularly, before current subframe border, start the scene of transmission for PUSCH, also indicate at ULgrantPUSCH starts to transmit data before the initial border of current subframe, and ULLBT plays initial line in current subframeBefore boundary, first PUSCH starts on the initial border of current subframe, and finishes before the end boundary of current subframe.Last OFDM symbol of a upper subframe of current subframe is used for carrying out LBT and (is specifically as follows in current subframeS), PUSCH transmits data from first OFDM sign-on of current subframe to 25 μ before beginning, and currentThe penultimate OFDM sign-off transmission data of subframe. Similar existing and SRS (SoundingReferenceThe abbreviation of Signal, i.e. Sounding reference signal) PUCCH while simultaneously transmitting, PUCCH is using PUCCHIn the situation of the form of format1/2, directly first OFDM symbol is fallen in punching, to determine the upper PUCCH of PCellThe running time-frequency resource of resource location. Be similar in CA and determine the upper PUCCH resource-niche of PCell according to DLGRANTThe method of putting, determines the PUCCH resource-niche on PCell according to sending uplink scheduling authorization ULGRANT herePut, wherein, authorize the PUCCH in frequency range to use existing PUCCH form to indicate.
As shown in Figure 5, this embodiment is the scene that starts transmission for PUSCH before current subframe border, comprisesHe Fu community, main plot, Liang Ge community all comprises 4 subframes (subframe 1, subframe 2, subframe 3 and subframe 4), mainSubframe 1 in community and subframe 4 comprise two time slots (first time slot and second time slot), and in two time slotsThe part of black is shown the time-domain position of PUCCH, i.e. the Secondary resource position of above-mentioned PUCCH. In this embodiment,Use last OFDM symbol of a upper subframe of subframe 1 to carry out LBT, and from first of subframe 1OFDM sign-on transmission data, in penultimate OFDM sign-off transmission data.
In above-mentioned enforcement of the present invention is shown, determine in the second frequency range (as authorized according to uplink scheduling authorization ULgrantFrequency range) on Physical Uplink Control Channel PUCCH Secondary resource position and in the first frequency range (as unauthorized frequencySection) on the first resource position of Physical Uplink Shared Channel PUSCH comprise: indicate at current son at ULgrantBehind the initial border of frame, start to transmit in the situation of data, the first resource position of PUSCH current subframe forBehind the position of LBT, start, and finish in the end boundary of current subframe, current subframe has multiple transmission opportunitys; RootDetermine the Secondary resource position of PUCCH according to ULgrant.
In the optional example in real time of one, transmission opportunity is two, and wherein, the first resource position of PUSCH is currentBehind the position with LBT of subframe, start to comprise: first OFDM symbol of first time slot of current subframe is used forLBT, first transmission opportunity is from second OFDM sign-on of first time slot of current subframe, at current sonLast OFDM sign-off of frame; First OFDM symbol of second time slot of current subframe is used forLBT, second transmission opportunity is from second OFDM sign-on of second time slot of current subframe, at current sonLast OFDM sign-off of frame.
Further, first OFDM symbol that is first time slot of two and current subframe in transmission opportunity is usedIn the situation of LBT, the method also comprises: last OFDM symbol of first time slot of current subframe is usedIn LBT, second transmission opportunity is from first OFDM sign-on of second time slot of current subframe, currentLast OFDM sign-off of subframe.
Further, determine that according to ULgrant the Secondary resource position of PUCCH comprises: in first transmission opportunityIn, in the case of using the form of PUCCHformat1, second of first time slot of indicating from ULgrantIndividual OFDM sign-on to use code length be that 3 orthogonal code is carried out time domain code and divided uses code length in second time slotBe that 4 orthogonal code is carried out time domain code and divided, to determine the time-domain resource of Secondary resource position; In second transmission opportunity,Second OFDM sign-on of second time slot of indicating from ULgrant, uses the orthogonal code that code length is 3 to carry outTime domain code divides, to determine the time-domain resource of Secondary resource position; In the situation of form that uses PUCCHformat2/3Under, directly first OFDM symbol in first time slot and second time slot is fallen in punching respectively.
Further, determine whether to send data on first resource position based on channel transmission state, and in the second moneyOn source position, transmitting channel transmission state comprises: when terminal before first transmission opportunity based on channel send state trueDetermine LBT when success, in first transmission opportunity, send data, and Secondary resource position first and/or theOn two time slots, transmitting channel sends state; When terminal was determined based on channel transmission state before first transmission opportunityIn LBT when failure, does not send data in first transmission opportunity, and Secondary resource position first and/or secondOn individual time slot, transmitting channel sends state.
Further, in the time that terminal was determined LBT failure based on channel transmission state before first transmission opportunity,On first time slot of Secondary resource position, transmitting channel transmission state comprises one of the following: in of Secondary resource positionOn a time slot, send the prompting of LBT failure; On first time slot of Secondary resource position, send LBT failurePoint out, and wait for the instruction of the next transmission opportunity of first resource position; At first time slot of Secondary resource positionOn do not send any signal.
Further, determine whether to send data on first resource position based on channel transmission state, and in the second moneyOn source position, transmitting channel transmission state comprises: when terminal before second transmission opportunity based on channel send state trueWhile determining LBT success, in second transmission opportunity, send data, and send out on second time slot of Secondary resource positionSend LBT successfully to indicate; In the time that terminal was determined LBT failure based on channel transmission state before second transmission opportunity,In first transmission opportunity, do not send data, and on second time slot of Secondary resource position, send LBT and unsuccessfully refer toShow.
Particularly, behind current subframe border, start transmission and current subframe for PUSCH and there are multiple transmission opportunitysScene, be similar in CA the method for determining the upper PUCCH resource location of PCell according to DLGRANT, thisRigen determines the above resource location of PUCCH of PCell according to sending uplink scheduling authorization ULGRANT. For example, sameIn a subframe, there are two PUSCH transmission opportunitys, comprising: 1) first slot of subframe (being first time slot)First OFDM symbol for LBT (be specifically as follows 25 μ before second OFDM sign-on s),First PUSCH transmission opportunity is transmitted data from second OFDM sign-on of first time slot of subframe, andIn last OFDM sign-off transmission data of subframe; 2) second of subframe slot (i.e. second time slot)First OFDM symbol for LBT (be specifically as follows 25 μ before second OFDM sign-on s),Second PUSCH transmission opportunity transmitted data from second OFDM sign-on of second time slot of subframe, andIn last OFDM sign-off transmission data of subframe. Wherein, for 2) in scheme change afterScheme can be: last OFDM symbol of first slot of subframe (is specifically as follows for LBTS), second PUSCH transmission opportunity is from first of second time slot of subframe for 25 μ before two subframes startOFDM sign-on transmission data, and transmit data at last OFDM sign-off of subframe.
Wherein, for 1) in the situation of first PUSCH transmission opportunity, authorize the PUCCH on frequency range PCellAt first slot, from second OFDM sign-on (supposing PUCCHformat1 series), using code length is 3Orthogonal code carry out time domain code and divide, in second slot, using code length is that 4 orthogonal code is carried out time domain code and divided. For2) situation of second PUSCH transmission opportunity in, authorize on frequency range PCell PUCCH second slot fromSecond OFDM sign-on (supposing PUCCHformat1 series), uses the orthogonal code that code length is 3 to carry outTime domain code divides, to determine the time-domain resource of PUCCH; In the case of using the form of PUCCHformat2/3,Directly first OFDM symbol in first time slot and second time slot is fallen in punching respectively.
When UE LBT when success before first PUSCH transmission opportunity, UE is in first PUSCH transmission opportunityUpper transmission data, and send out on PUCCH running time-frequency resource on first (or simultaneously first and second) slotSend LBT successfully to indicate; When UE LBT when failure before first PUSCH transmission opportunity, UE is not at firstIn PUSCH transmission opportunity, send data, and on first (or simultaneously first and second) slotOn PUCCH running time-frequency resource, sending LBT unsuccessfully indicates. About sending out on the PUCCH running time-frequency resource at first slotSend LBT state can comprise following three kinds of situations: the first, on the PUCCH of first slot running time-frequency resource, send outSend the instruction of LBT failure; The second sends the finger of LBT failure on the PUCCH of first slot running time-frequency resourceShow, and continue to attempt the instruction of next PUSCH transmission opportunity; The third, in the time of the PUCCH of first slotFrequently in resource, do not send any signal. Whether concrete which kind of PUCCH indicating mode of selecting can be supported many according to UEThe ability of individual PUSCH transmission opportunity is joined by RRC (RadioResourceControl, i.e. Radio Resource control)Put.
When UE LBT when success before second PUSCH transmission opportunity, UE is second PUSCH transmission opportunitySend data, and on the PUCCH of second slot running time-frequency resource, send LBT and successfully indicate; When UE is secondWhen before individual PUSCH transmission opportunity, LBT is failed, UE does not send data in second PUSCH transmission opportunity, andOn the PUCCH of second slot running time-frequency resource, sending LBT unsuccessfully indicates.
As shown in Figure 6, this embodiment starts transmission and current subframe tool behind current subframe border for PUSCHHave the scene of multiple transmission opportunitys, comprise He Fu community, main plot, Liang Ge community all comprise 4 subframes (subframe 1,Subframe 2, subframe 3 and subframe 4), the subframe 1 in main plot and subframe 4 comprise two time slots (first time slot andSecond time slot), and in two time slots, the part of black represents the time-domain position of PUCCH, i.e. above-mentioned PUCCHSecondary resource position. In this embodiment, use first OFDM symbol of first time slot of subframe 1 to carry outLBT, first PUSCH transmission opportunity is from second transmission of OFDM sign-on data, in the end an OFDMSign-off transmission data; Use first OFDM symbol of second time slot of subframe 1 to carry out LBT, secondPUSCH transmission opportunity is from second OFDH sign-on transmission data, and in the end an OFDM sign-off passesTransmission of data.
By above-described embodiment, define PUSCH and behind subframe border, carry out LBT, and subframe has multiple transmissionThe scheme of chance, thus can guarantee correctly to know the LBT of terminal, to improve the efficiency of uplink.
In the above embodiment of the present invention, determine in the second frequency range (as authorized according to uplink scheduling authorization ULgrantFrequency range) on Physical Uplink Control Channel PUCCH Secondary resource position and in the first frequency range (as unauthorized frequencySection) on the first resource position of Physical Uplink Shared Channel PUSCH comprise: indicate at current son at ULgrantBefore the initial border of frame, start to transmit in the situation of data, the first resource position of PUSCH is at the initial line that rises of current subframeBoundary starts, and finishes before the end boundary of current subframe, and current subframe has multiple transmission opportunitys; According to ULgrantDetermine the Secondary resource position of PUCCH.
Particularly, before current subframe border, start transmission and current subframe for PUSCH and there are multiple transmission opportunitysScene. In same subframe, there are two PUSCH transmission opportunitys, comprising: 1) first slot of current subframeLast OFDM symbol of a upper subframe of (being first time slot) (is specifically as follows current for LBT25 μ before first OFDM sign-on of first time slot of subframe s), first PUSCH transmission opportunityFrom first OFDM sign-on transmission data of first time slot of current subframe, and at the inverse of current subframe theTwo OFDM sign-off transmission data; 2) last of first slot of current subframe (i.e. second time slot)Individual OFDM symbol for LBT (be specifically as follows before first OFDM sign-on of second time slot 25S), second PUSCH transmission opportunity passes from first OFDM sign-on of second time slot of current subframe μTransmission of data, and in the penultimate OFDM of current subframe sign-off transmission data. Be similar to basis in CADLGRANT determines the method for the upper PUCCH resource location of PCell, here according to sending uplink scheduling authorization ULGRANT determines the PUCCH resource location on PCell, wherein, authorizes the PUCCH in frequency range to use existingPUCCH form is indicated.
As shown in Figure 7, this embodiment starts transmission and current subframe tool behind current subframe border for PUSCHHave the scene of multiple transmission opportunitys, comprise He Fu community, main plot, Liang Ge community all comprise 4 subframes (subframe 1,Subframe 2, subframe 3 and subframe 4), the subframe 1 in main plot and subframe 4 comprise two time slots (first time slot andSecond time slot), and in two time slots, the part of black represents the time-domain position of PUCCH, i.e. above-mentioned PUCCHSecondary resource position. In this embodiment, use last OFDM symbol of a upper subframe of subframe 1 to carry outLBT, first PUSCH transmission opportunity is from first OFDM sign-on transmission data of subframe 1, at inverseSecond OFDM sign-off transmission data. Use first OFDM symbol of second time slot of subframe 1 to enterRow LBT, second PUSCH transmission opportunity is from second OFDH sign-on transmission data, in the end oneOFDM sign-off transmission data.
In this embodiment, the indicating mode of LBT state and above-mentioned PUSCH carry out behind subframe border particularlyThe mode of LBT is consistent, does not repeat them here.
By above-described embodiment, define PUSCH and before subframe border, carry out LBT, and subframe has multiple transmissionThe scheme of chance, thus can guarantee correctly to know the LBT of terminal, to improve the efficiency of uplink.
In the above embodiment of the present invention, on Secondary resource position, transmitting channel transmission state comprises: second frequentlyOn Secondary resource position on the main plot of section (as authorized frequency range), adopt the multiplexing transmission mode of single-carrier frequency division multiple access;In MuLTEfire, on the first resource position of the first frequency range (as unauthorized frequency range), adopt block interleaving frequency division manyThe multiplexing transmission mode of location B-IFDMA.
Above-mentioned B-IFDMA is the abbreviation of BlockInterleavedFrequencyDivisionMultipleAccess.
Further, the method also comprises: when the main plot in MuLTEfire is during in unauthorized frequency range, unauthorizedFrequency range Fu community is at Physical Uplink Control Channel PUCCH or the enhancing Physical Uplink Control Channel of main plotThe upper transmission channel of sPUCCH of ePUCCH or shortening sends state.
Particularly, on the PUCCH running time-frequency resource of authorizing on frequency range PCell, transmission channel transmission state adopts single carrierAnswering of frequency division multiple access SC-FDMA (abbreviation of SingleCarrier-FrenquencyDivisionMultipleAccess)By mode, in MuLTEfire, adopt B-IFDMA at the PUSCH of unauthorized frequency range running time-frequency resource transmitting dataMultiplex mode. When the PCell in MuLTEfire is during in unauthorized frequency range, the SCell's of other unauthorized frequency ranges is upperRow LBT state can transmit equally on the PUCCH/ePUCCH of PCell, about the time-frequency of PUCCHThe start-stop position of resource can adopt the method in above-described embodiment, and difference is to adopt B-IFDMA multiplex modeThe frequency domain resource method of salary distribution, will cause PUCCH/ePUCCH equally spaced whole system bandwidth that is distributed on frequency domain,For example, suppose the system bandwidth of 20MHz, comprise 100 RB (ResourceBlock, the i.e. resources of 0-99Piece), be divided into 10 interleaving blocks of 0-9, n 10 RB that interleaving block comprises [n:10:100]. As Fig. 8 instituteShow, comprise slot-0 (being time slot 0) and slot-1 (being time slot 1), each time slot comprises 100 RB, in Fig. 8Ordinate represent the arrangement of RB, from RB-n, every 10RB is an interleaving block of composition (interlace),Until RB-n+90.
In the above embodiment of the present invention, on Secondary resource position, transmitting channel transmission state comprises: work as main plotOn PUCCH need support the instruction of channel transmission state on multiple auxiliary communities time, by using PUCCHformat2/3, use the mode of bitmap bitmap to indicate the channel on each auxiliary community to send state, wherein, using PUCCHIn the situation of the form of format2/3, fall the mode of first OFDM symbol by direct punching and vacate LBT'sA symbol; In the case of using the form of PUCCHformat2/3, fall last OFDM by direct punchingThe mode of symbol is vacated a symbol of LBT.
Wherein, the mode of increase bitmap bitmap comprises one of the following: increase control message UCIbit number; Increase UCICRC mask; Send the numbering of multiple PUCCH by UCI; In PUSCH, send UCI.
Particularly, in the time that the PUCCH on PCell need to support the LBT state instruction on multiple SCell, canBy using PUCCHformat2/3, use the mode that increases bitmap bitmap to indicate the LBT shape on each SCellState. For needing to increase bitmap bitmap in UCI (UplinkControlInformation, physical control information) formatXbit indicate multiple SCell information time concrete mode comprise and increase UCIbit number, increase the CRC of UCIMask, sends the numbering of multiple PUCCH by UCI, send UCI etc. in PUSCH.
In the above embodiment of the present invention, determining that on first resource position, sending data comprises: when terminal connectsWhen the base station entering is dispatched to the multiple carrier wave in the first frequency range (as unauthorized frequency range) of terminal by ULgrant simultaneously,From multiple carrier waves, select a carrier wave to send data, and send out on second frequency resource location corresponding to the carrier wave of selectingDeliver letters send state.
Further, from multiple carrier waves, selecting a carrier wave to send data comprises: selective channel matter from multiple carrier wavesMeasure the highest carrier wave and send data.
Particularly, when eNB dispatches many unauthorized carrier waves to UE by ULgrant simultaneously, carry out multiple unauthorizedWhen the selection of carrier wave, UE can send upstream data on the best carrier wave of channel condition, and corresponding at this carrier wavePUCCH resource or corresponding bitmap field send the instruction of LBT state.
In the above-described embodiments, indicate the channel access state of unauthorized frequency range (above-mentioned by the resource of authorizing frequency rangeChannel send state), can avoid base station interfering signal and useful signal to be carried out to the transmission of signal merging, raisingThe reliability of uplink.
According to a further aspect in the invention, also provide a kind of terminal. As shown in Figure 9, this terminal comprises: obtain listUnit 91, for obtaining the resource in the second frequency range; Indicating member 93, for the resource instruction quilt by the second frequency rangeThe channel that is dispatched to the resource of the first frequency range sends state, and wherein, the first frequency range is first to listen the frequency of sending out afterwards LBTSection, the second frequency range is the frequency range of not carrying out the frequency range of LBT or taking current channel by LBT.
Adopt the embodiment of the present invention, be scheduled for the channel of the resource of the first frequency range by the resource instruction in the second frequency rangeTransmission state. By above-described embodiment, can make eNB in the time sending ULgrant, can accurately know the LBT of UEAs a result, thus can ensure UE can scheduling running time-frequency resource on send upstream data, avoided DTX to upThe impact of HARQ performance, and then improved efficiency and the reliability of uplink, solve of the prior art upTransmission method cannot correctly provide channel and send state, and causes the inefficient problem of uplink.
Particularly, terminal sends state according to the channel of the resource of dispatching in the first frequency range, in the correspondence of the second frequency rangeOn the transfer resource of this terminal, transmit this channel and send state, can, in the time that eNB sends ULgrant, pass through channelThe LBT result of transmission state instruction UE, is determining in the successful situation of LBT of UE, can ensure that UE is theOn the running time-frequency resource of dispatching in one frequency range, send upstream data.
In the above-described embodiments, by authorizing the resource of frequency range to indicate the up channel of unauthorized frequency range in current subframe to sendState, whether the resource that is also scheduled for unauthorized frequency range by authorizing the resource of frequency range to indicate successfully sends, and keeps awayExempt from the impact of DTX on ascending HARQ performance, thereby improved efficiency and the reliability of uplink.
In the above embodiment of the present invention, indicating member comprises: transport module, for terminal according in the first frequency rangeThe channel of the first resource position of scheduling sends state, on the Secondary resource position of the counterpart terminal of the second frequency range, transmitsChannel sends state.
In a kind of optional embodiment, the first above-mentioned frequency range is first to listen the frequency range of sending out afterwards LBT, Ke YiweiUnauthorized frequency range; The second frequency range is the frequency range of not carrying out the frequency range of LBT or taking current channel by LBT, canThink mandate frequency range, the channel that is scheduled for the resource of the first frequency range by the resource instruction in the second frequency range sends stateComprise: terminal sends state according to the channel of the first resource position in unauthorized frequency range scheduling, authorizing the right of frequency rangeAnswer transmission channel on the Secondary resource position of terminal to send state.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
In the above embodiment of the present invention, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, do not haveThe part describing in detail, can be referring to the associated description of other embodiment.
In the several embodiment that provide in the application, should be understood that, disclosed technology contents, can pass through otherMode realize. Wherein, device embodiment described above is only schematically, the division of for example described unit,Can be that a kind of logic function is divided, when actual realization, can have other dividing mode, for example multiple unit or assemblyCan in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out. Another point, instituteThe coupling each other showing or discuss or direct-coupling or communication connection can be by some interfaces, unit or mouldThe INDIRECT COUPLING of piece or communication connection can be electrical or other form.
The described unit as separating component explanation can or can not be also physically to separate, aobvious as unitThe parts that show can be or can not be also physical locations, can be positioned at a place, or also can be distributed toOn multiple unit. Can select according to the actual needs some or all of unit wherein to realize the present embodiment schemeObject.
In addition, the each functional unit in each embodiment of the present invention can be integrated in a processing unit, also canBe that the independent physics of unit exists, also can be integrated in a unit two or more unit. Above-mentioned integratedUnit both can adopt hardware form realize, also can adopt SFU software functional unit form realize.
If described integrated unit is realized also as independently production marketing or use using the form of SFU software functional unitTime, can be stored in a computer read/write memory medium. Based on such understanding, technical scheme of the present inventionThe all or part of of the part in other words prior art being contributed in essence or this technical scheme can produce with softwareThe form of product embodies, and this computer software product is stored in a storage medium, comprise some instructions with so thatObtain a computer equipment (can be personal computer, server or the network equipment etc.) and carry out each enforcement of the present inventionThe all or part of step of the described method of example. And aforesaid storage medium comprises: USB flash disk, read-only storage (ROM,Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), portable hard drive,The various media that can be program code stored such as magnetic disc or CD.
The above is only the preferred embodiment of the present invention, it should be pointed out that the ordinary skill people for the artMember, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvement and profitDecorations also should be considered as protection scope of the present invention.

Claims (10)

1. channel sends an indicating means for state, it is characterized in that, comprising:
Obtain the resource in the second frequency range;
The channel that is scheduled for the resource of the first frequency range by the resource instruction in described the second frequency range sends state,Wherein, described the first frequency range is first to listen the frequency range of sending out afterwards LBT, and described the second frequency range is not for described in carrying outThe frequency range of LBT or take the frequency range of current channel by described LBT.
2. method according to claim 1, is characterized in that, is scheduled for by the resource instruction in the second frequency rangeThe channel transmission state of the resource of the first frequency range comprises:
Terminal sends state according to the channel of the first resource position in described the first frequency range scheduling, described secondOn the Secondary resource position of the described terminal of correspondence of frequency range, transmit described channel and send state.
3. method according to claim 2, is characterized in that, terminal is according to the first resource in the first frequency range schedulingThe channel of position sends state, on the described Secondary resource position of the described terminal of correspondence of the second frequency range, transmits instituteStating channel transmission state comprises:
Determine the Physical Uplink Control Channel in described the second frequency range according to uplink scheduling authorization ULgrantOf the Secondary resource position of PUCCH and the Physical Uplink Shared Channel PUSCH in described the first frequency rangeOne resource location;
Determine whether to send data on described first resource position based on described channel transmission state, and describedOn Secondary resource position, send described channel and send state.
4. method according to claim 3, is characterized in that, determines whether in institute based on described channel transmission stateState on first resource position and send data, and on described Secondary resource position, send described channel transmission state bagDraw together:
In the time that channel transmission state indicates described terminal first to listen to send out afterwards LBT success, on described first resource positionSend data, and on corresponding Secondary resource position, send LBT and successfully indicate;
In the time that channel transmission state indicates described terminal first to listen to send out afterwards LBT failure, on described first resource positionDo not send data, and on corresponding Secondary resource position, send the instruction of LBT failure.
5. method according to claim 3, is characterized in that, determines in institute according to uplink scheduling authorization ULgrantState the Secondary resource position of the Physical Uplink Control Channel PUCCH in the second frequency range and in described the first frequency rangeOn the first resource position of Physical Uplink Shared Channel PUSCH comprise:
After indicating the initial border in current subframe, described ULgrant starts to transmit data, described inThe first resource position of PUSCH starts behind the initial border of described current subframe, and in described current subframeEnd boundary finishes, and described current subframe has a transmission opportunity;
Determine the Secondary resource position of described PUCCH according to described ULgrant.
6. method according to claim 5, is characterized in that, the first resource position of described PUSCH is describedBehind the initial border of current subframe, start, and finish to comprise in the end boundary of described current subframe:
First orthogonal frequency division multiplex technique OFDM symbol of described current subframe is used for described LBT, described inThe first resource position of PUSCH is at second OFDM sign-on of described current subframe, described currentLast OFDM sign-off of subframe.
7. method according to claim 5, is characterized in that, determines described Secondary resource according to described ULgrantPosition comprises:
Second OFDM sign-on of first time slot of indicating from described ULgrant, is using PUCCHIn the situation of the form of format1, use in first time slot orthogonal code that code length is 3 to carry out time domain code and divide, withDetermine the time-domain resource of described Secondary resource position;
I OFDM sign-on of second time slot of indicating from described ULgrant, use code length is 5-iOrthogonal code carry out time domain code and divide, to determine the time-domain resource of described Secondary resource position, wherein, described i is 1Or 2;
In the case of using the form of PUCCHformat2/3, directly first OFDM symbol is fallen in punching.
8. method according to claim 3, is characterized in that, determines in institute according to uplink scheduling authorization ULgrantState the Secondary resource position of the Physical Uplink Control Channel PUCCH in the second frequency range and in described the first frequency rangeOn the first resource position of Physical Uplink Shared Channel PUSCH comprise:
Before indicating the initial border in current subframe, described ULgrant starts to transmit data, described inThe first resource position of PUSCH starts on the initial border of described current subframe, and at the knot of described current subframeBundle finishes before border;
Determine the Secondary resource position of described PUCCH according to described ULgrant.
9. method according to claim 8, is characterized in that, the first resource position of described PUSCH is describedThe initial border of current subframe starts, and before the end boundary of described current subframe, finishes to comprise:
Last OFDM symbol of a upper subframe of described current subframe is for LBT, described first resourcePosition is from first OFDM sign-on of described current subframe, at the penultimate of described current subframeOFDM sign-off.
10. a terminal, is characterized in that, comprising:
Acquiring unit, for obtaining the resource in the second frequency range;
Indicating member, is scheduled for the resource of the first frequency range for the resource instruction by described the second frequency rangeChannel sends state, and wherein, described the first frequency range is first to listen the frequency range of sending out afterwards LBT, and described second frequentlySection is the frequency range of not carrying out the frequency range of described LBT or taking current channel by described LBT.
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