CN105611540A - Channel detection control method and related equipment - Google Patents

Channel detection control method and related equipment Download PDF

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Publication number
CN105611540A
CN105611540A CN201510954042.3A CN201510954042A CN105611540A CN 105611540 A CN105611540 A CN 105611540A CN 201510954042 A CN201510954042 A CN 201510954042A CN 105611540 A CN105611540 A CN 105611540A
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CN
China
Prior art keywords
terminal
base station
time
information
deadline
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CN201510954042.3A
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Chinese (zh)
Inventor
乔梁
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Shenzhen Jinli Communication Equipment Co Ltd
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Shenzhen Jinli Communication Equipment Co Ltd
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Priority to CN201510954042.3A priority Critical patent/CN105611540A/en
Publication of CN105611540A publication Critical patent/CN105611540A/en
Priority to PCT/CN2016/107551 priority patent/WO2017101667A1/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • 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
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention provides a channel detection control method and related equipment. The method comprises the steps: enabling a base station to obtain cutoff time information of downlink data transmission with a first terminal; receiving a dispatching request transmitted by a randomly connected second terminal through a PUCCH (physical uplink control channel), wherein the carrier employed for downlink data transmission of the first terminal is the same as the carrier employed for PUCCH transmission of the second terminal; determining the time of responding to the dispatching request to transmit uplink authorization information to the second terminal according to the cutoff time information and a preset time range, so as to enable the base station not to carry out LBT (listen before tell) detection of a channel for transmitting uplink authorization information when the base station transmits the uplink authorization information to the second terminal. According to the embodiment of the invention, the method can reduce the number of times of LBT detection of the base station, and reduces the power consumption of the base station.

Description

A kind of control method of Channel Detection and relevant device
Technical field
The present invention relates to communication technical field, relate in particular to a kind of control method and relevant device of Channel Detection.
Background technology
Along with the sharply increase of message volume, authorize frequency spectrum to be more and more not enough to the network capacity that provides higher.In order further to improve the utilization rate of frequency spectrum resource, can on the basis of authorizing frequency spectrum, expand and use unauthorizedFrequency spectrum. 3GPP (3rdGenerationPartnershipProject, third generation partner program) tissue is carriedGo out LAA (LicensedAssistedAccess authorizes auxiliary access) technology to realize at LTE (LongTermEvolution, Long Term Evolution) authorize on the basis of frequency spectrum and use unlicensed spectrum. For with do not awardPower frequency spectrum better coexists, and introduces LBT (ListenBeforeTalk, listem-before-talk) mechanism in LTE,If do not take this channel while making LTE channel busy be detected in unlicensed spectrum, if channel detectedSpare time just takies. In existing LAA, in the time there is up-downgoing data transaction, transmission node all needs to carry outWhether LBT detects, can use with detected transmission channel. Therefore, there will be like this some unnecessary LBT inspectionsSurvey; In addition, too much LBT detection can cause the power consumption of transmission node to increase.
Summary of the invention
The embodiment of the present invention provides a kind of control method and relevant device of Channel Detection, can reduce LBTThe number of times detecting, the power consumption of reduction equipment.
Embodiment of the present invention first aspect provides a kind of control method of Channel Detection, is applied to authorize to assistIn access LAA technology, comprising:
Base station obtains information deadline of carrying out downlink data transmission with first terminal;
The second terminal of the random access of described base station reception sends by Physical Uplink Control Channel PUCCHDispatch request, wherein, the carrier wave that described base station and described first terminal downlink data transmission are used and described inIt is identical that the described PUCCH of the second terminal transmits the carrier wave using;
Described base station, according to described deadline information and Preset Time scope, determines that the described scheduling of response pleaseAsk the time that sends uplink authorization information to described the second terminal, so that described base station is sent out to described the second terminalWhile sending described uplink authorization information, the channel for transmitting described uplink authorization information is not carried out to listem-before-talkThe operation that LBT detects.
Embodiment of the present invention second aspect provides a kind of control method of Channel Detection, is applied to authorize to assistIn access LAA technology, comprising:
Base station obtains information deadline of carrying out downlink data transmission with first terminal;
The second terminal of the random access of described base station reception sends by Physical Uplink Control Channel PUCCHDispatch request;
Dispatch request described in described base station in response, sends uplink authorization information and indication letter to described the second terminalBreath, described indication information comprises and is used to indicate uplink authorization information and described base described in described the second terminal responseWhether station carries out the initial time of Physical Uplink Shared Channel PUSCH transmission and is used to indicate to carry out first listeningThe rear identification information of saying that LBT detects;
When between the initial time of described PUSCH transmission and deadline that described deadline, information comprisedEvery within the scope of Preset Time time, or transmit corresponding system subframe numbers and described cut-off as described PUSCHDeadline that temporal information comprises, the interval of corresponding system subframe numbers was corresponding in described Preset Time scopeIn subframe symbolic number time, the described identification information of whether carrying out LBT detection is configured to not carry out by described base stationDescribed LBT detects so that described the second terminal and described base station carry out described PUSCH while transmitting to describedPUSCH does not carry out the operation of described LBT detection, wherein, and the described mark letter of whether carrying out LBT detectionBreath is for representing whether described the second terminal carries out the operation of described LBT detection, described base station and described firstThe described PUSCH transmission of the carrier wave that terminal downlink data transmission is used and described the second terminal is usedCarrier wave is identical.
The embodiment of the present invention third aspect provides a kind of control method of Channel Detection, is applied to authorize to assistIn access LAA technology, comprising:
When after the random access base station of terminal, described terminal is passed through Physical Uplink Control Channel PUCCH to described baseStand and send dispatch request;
Described terminal receives uplink authorization information and the indication letter that dispatch request sends described in described base station in responseBreath, described indication information comprises that being used to indicate uplink authorization information and described base station described in described terminal response entersThe initial time of row Physical Uplink Shared Channel PUSCH transmission and be used to indicate whether carry out listem-before-talkThe identification information that LBT detects, when the initial time of described PUSCH transmission and described base station obtain with firstTerminal is carried out the interval of the deadline that information comprises deadline of downlink data transmission in Preset Time scopeWhen interior, or transmit corresponding system subframe numbers and described deadline, information comprised section as described PUSCHWhen only the interval of system subframe numbers corresponding to time is in subframe symbolic number corresponding to described Preset Time scope,The described identification information of whether carrying out LBT detection is configured to not carry out described LBT by described base station and detects;
Described terminal is determined with described base station and is carried out the initial of described PUSCH transmission according to described indication informationTime, so that described terminal and described base station carry out when described PUSCH transmits described PUSCH not carry outThe operation that described LBT detects;
Wherein, describedly whether carry out identification information that LBT detects for described in representing whether described terminal carry outLBT detect operation, the carrier wave that described base station and described first terminal downlink data transmission are used with described inIt is identical that the described PUSCH of terminal transmits the carrier wave using.
Embodiment of the present invention fourth aspect provides a kind of base station, comprising:
Acquiring unit, for obtaining information deadline of carrying out downlink data transmission with first terminal;
Receiving element, sends out by Physical Uplink Control Channel PUCCH for the second terminal that receives random accessThe dispatch request of sending, wherein, the carrier wave that described base station and described first terminal downlink data transmission are used andIt is identical that the described PUCCH of described the second terminal transmits the carrier wave using;
The first determining unit, for according to described deadline information and Preset Time scope, determines responseDescribed dispatch request sends the time of uplink authorization information to described the second terminal, so that described base station is to describedWhen the second terminal sends described uplink authorization information, the channel for transmitting described uplink authorization information is not carried outThe operation that listem-before-talk LBT detects.
The embodiment of the present invention the 5th aspect provides a kind of base station, comprising:
Acquiring unit, for obtaining information deadline of carrying out downlink data transmission with first terminal;
Receiving element, sends out by Physical Uplink Control Channel PUCCH for the second terminal that receives random accessThe dispatch request of sending;
Transmitting element, for responding described dispatch request, to described the second terminal send uplink authorization information andIndication information, described indication information comprise be used to indicate described in described the second terminal response uplink authorization information withWhether described base station carries out the initial time of Physical Uplink Shared Channel PUSCH transmission and is used to indicate holdingThe identification information that row listem-before-talk LBT detects, when initial time and the described cut-off of described PUSCH transmissionThe interval of the deadline that temporal information comprises is within the scope of Preset Time time, or when described PUSCH transmissionBetween the system subframe numbers that corresponding system subframe numbers is corresponding with the deadline that described deadline, information comprisedEvery in subframe symbolic number corresponding to described Preset Time scope time, describedly whether carry out the mark that LBT detectsInformation is configured to not carry out described LBT by described base station and detects, so that described the second terminal and described base station are enteredWhen the described PUSCH transmission of row, described PUSCH is not carried out the operation of described LBT detection, wherein, described inWhether carry out identification information that LBT detects for representing whether described the second terminal carries out described LBT detectionOperation, the carrier wave that described base station and described first terminal downlink data transmission are used and described the second terminalIt is identical that described PUSCH transmits the carrier wave using.
The embodiment of the present invention the 6th aspect provides a kind of terminal, comprising:
Transmitting element, for when after the random access base station of described terminal, passes through Physical Uplink Control ChannelPUCCH sends dispatch request to described base station;
Receiving element, for receiving the uplink authorization information that dispatch request sends described in described base station in response and referring toShow information, described indication information comprises and is used to indicate uplink authorization information and described base described in described terminal responseWhether station carries out the initial time of Physical Uplink Shared Channel PUSCH transmission and is used to indicate to carry out first listeningThe rear identification information of saying that LBT detects, when the initial time of described PUSCH transmission and described base station obtainThe interval of the deadline that information comprises deadline of carrying out downlink data transmission with first terminal is when defaultBetween in scope time, or when described PUSCH transmit corresponding system subframe numbers and described deadline packets of informationDeadline of drawing together corresponding system subframe numbers interval in subframe symbolic number corresponding to described Preset Time scopeWhen interior, the described identification information of whether carrying out LBT detection is configured to not carry out described LBT by described base station and examinesSurvey;
Determining unit, for determining with described base station and carry out described PUSCH transmission according to described indication informationInitial time so that described terminal and described base station while carrying out described PUSCH transmission to described PUSCH notCarry out the operation of described LBT detection;
Wherein, describedly whether carry out identification information that LBT detects for described in representing whether described terminal carry outLBT detect operation, the carrier wave that described base station and described first terminal downlink data transmission are used with described inIt is identical that the described PUSCH of terminal transmits the carrier wave using.
In the embodiment of the present invention, in the auxiliary access of mandate LAA technology, base station can obtain and first terminalCarry out information deadline of downlink data transmission, and receive random access with first terminal with the of carrier waveThe dispatch request that two terminals send, and according to this information and Preset Time scope, determine response deadlineThis dispatch request sends the time of uplink authorization information to the second terminal, so that base station sends to the second terminalWhen row authorization message, can the channel for transmitting uplink authorization information not carried out to listem-before-talk LBT detectionOperation. Visible, implement the embodiment of the present invention, can send uplink authorization to terminal by dynamic adjustment base stationThe time of information, to make time and a upper terminal downlink data of the transmission uplink authorization information after adjustmentThe interval of deadline of transmission within the scope of Preset Time time to the channel for transmitting uplink authorization information notCarry out LBT detection. Thereby reduce the number of times that LBT detection is carried out in base station, reduce the power consumption of base station.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below will be to required in embodimentThe accompanying drawing using is briefly described, and apparently, the accompanying drawing in the following describes is realities more of the present inventionExecute example, for those of ordinary skill in the art, not paying under the prerequisite of creative work, all rightObtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the control method of a kind of Channel Detection of providing of the embodiment of the present invention;
Fig. 2 is the schematic flow sheet of the control method of the another kind of Channel Detection that provides of the embodiment of the present invention;
Fig. 3 is a kind of up-downgoing transfer of data schematic diagram that the embodiment of the present invention provides;
Fig. 4 is the schematic flow sheet of the control method of another Channel Detection of providing of the embodiment of the present invention;
Fig. 5 is the another kind of up-downgoing transfer of data schematic diagram that the embodiment of the present invention provides;
Fig. 6 is the schematic flow sheet of the control method of another Channel Detection of providing of the embodiment of the present invention;
Fig. 7 is the structural representation of a kind of base station of providing of the embodiment of the present invention;
Fig. 8 is the structural representation of the another kind of base station that provides of the embodiment of the present invention;
Fig. 9 is the structural representation of another base station of providing of the embodiment of the present invention;
Figure 10 is the structural representation of another base station of providing of the embodiment of the present invention;
Figure 11 is the structural representation of another base station of providing of the embodiment of the present invention;
Figure 12 is the structural representation of another base station of providing of the embodiment of the present invention;
Figure 13 is the structural representation of a kind of terminal of providing of the embodiment of the present invention;
Figure 14 is the structural representation of the another kind of terminal that provides of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearlyChu, intactly description, obviously, described embodiment is the present invention's part embodiment, instead of allEmbodiment. Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative laborThe every other embodiment obtaining under moving prerequisite, belongs to the scope of protection of the invention.
The embodiment of the present invention provides a kind of control method and relevant device of Channel Detection, by dynamic adjustmentBase station sends the time of uplink authorization information to terminal, with the transmission uplink authorization information after making to adjust timeBetween when the interval of deadline of a upper terminal downlink data transmission is within the scope of Preset Time to for passingThe channel of defeated uplink authorization information does not carry out LBT detection, thereby reduces the number of times that LBT detects, reduction equipmentPower consumption. Below be elaborated respectively.
Refer to Fig. 1, Fig. 1 is that the flow process of the control method of a kind of Channel Detection of providing of the embodiment of the present invention is shownIntention. Wherein, the control method of this Channel Detection can be applied to authorizes in auxiliary access LAA technology, withRealize expanding on the basis of authorizing frequency spectrum and use unlicensed spectrum. In LAA technology, for fear ofOn occupied carrier wave, communicate, can introduce listem-before-talk LBT detection technique. Its process is generally:Before signal transmission, transmission node (base station or terminal) need to carry out CCA (Clear to transmission channelChannelAssessment, clear channel assessment (CCA)) detect, can utilize the method for energy measuring to sentence hereFixed, in the time that the energy of transmission channel exceedes specific threshold, can think that this transmission channel is occupied, transmission jointPoint can not transmit and within CCA detection time, this transmission channel be observed on this transmission channel;When the energy of transmission channel is during lower than specific threshold, can think this transmission channel empty, transmission node canOn this channel, carry out transfer of data.
The more LBT detection of carrying out is disadvantageous to the efficiency of system, and too much LBT detects and also can lead in additionThe power consumption that causes transmission node increases. The embodiment of the present invention discloses a kind of scheme, at same carrier wave with under base station, whenThe deadline of downlink data transmission and transmission node carry out the interval of initial time of transfer of data at specific modelEnclose (can be a default time range) when interior, transmission node (base station or terminal) can be without executionLBT detects. So not only be conducive to the lifting of system effectiveness, also can significantly reduce the merit of transmission nodeConsumption. Concrete, as shown in Figure 1, the control method of this Channel Detection can comprise the following steps:
101, base station obtains information deadline of carrying out downlink data transmission with first terminal.
In the embodiment of the present invention, in LAA technology, base station both can be operated in mandate frequency range, also can workDo in unauthorized frequency range. When base station and first terminal carry out downlink data transmission, can obtain this lower line numberReportedly defeated information deadline, first terminal can comprise cell phone, panel computer, palm PC,Personal digital assistant (PersonalDigitalAssistant, PDA), mobile internet device (MobileInternetDevice, MID), each Terminal Type such as intelligent wearing equipment (as intelligent watch, intelligent bracelet etc.), thisBright embodiment is not construed as limiting.
In the embodiment of the present invention, deadline, information can include but not limited to that (be downlink data deadlineThe end time of transmission) and deadline corresponding system subframe numbers etc. at least one. Deadline canTo be converted to corresponding system subframe numbers according to preset rules, deadline, corresponding system subframe numbers was hereBase station and system subframe numbers corresponding under the second terminal transmission, as base station under LTE system and the second terminal transmissionCorresponding system subframe numbers. Preset rules can be existing conversion method, and the embodiment of the present invention is not construed as limiting.
As the optional embodiment of one, step 101 base station obtains with first terminal carries out downlink data biographyDefeated deadline, the detailed description of the invention of information can comprise the following steps:
11) base station is by PDSCH (PhysicalDownlinkSharedChannel, the shared letter of physical downRoad) carry out downlink data transmission with first terminal, in downlink data transmission, carry reference signal, so that theOne this reference signal of terminal demodulation to the channel condition information of this PDSCH of base station feedback;
12) information deadline of this downlink data transmission is determined in base station according to this channel condition information.
In this embodiment, when base station and first terminal carry out downlink data transmission, can pass through at PDSCHComprise that reference signal carries out quality estimation to channel, first terminal receives after this reference signal, to thisReference signal is carried out demodulation, and by the information feedback of this PDSCH to base station, base station can basisThis channel condition information estimates information deadline of this downlink data transmission. In LAA technology,The maximum downstream transmission time of holding is 32ms, and can be current lower line number the deadline of downlink data transmissionReportedly defeated initial time is put off 32ms backward.
In this embodiment, reference signal can be that (CellReferenceSignal, community is with reference to letter for CRSNumber), DMRS (DemodulationReferenceSignal, demodulated reference signal), CSI-RS (ChannelStateInformationReferenceSignal, channel state information reference signals) etc., the invention processExample is not construed as limiting. Channel condition information, namely CSI, generally can include but not limited to: PMI (PrecodingMatrixIndicator, pre-coding matrix instruction), CQI (ChannelQualityIndicator, channel qualityInstruction), RI (RandIndicator, order instruction) and PTI (PrecodingTypeIndicator, precodingType instruction) etc.
102, the second terminal of the random access of base station reception sends by Physical Uplink Control Channel PUCCHDispatch request.
In the embodiment of the present invention, first terminal and the second terminal can be same terminals, can be also differentTwo terminals, the embodiment of the present invention is not construed as limiting. The second terminal can comprise cell phone, panel computer,All kinds of ends such as palm PC, PDA, MID, intelligent wearing equipment (as intelligent watch, intelligent bracelet etc.)End, the embodiment of the present invention is not construed as limiting.
In the embodiment of the present invention, with under base station, can exist the second terminal to initiate to base station random at same carrier waveAccess, successfully to access this base station. The second terminal is being supported dispatch request (SchedulingRequest, SR)On the basis sending, can pass through PUCCH (PhysicalUplinkControlChannel, physical uplink controlChannel processed) UCI (UplinkControlInformation, ascending control information) to base station send schedulingRequest. First terminal and the second terminal can be understood as base station and first terminal downlink data transmission institute with carrier waveIt is identical that carrier wave and base station and the second terminal using carried out the carrier wave that PUCCH transmission uses. Wherein, oneUnder carrier wave, can comprise one or more channels.
103, base station is according to this information and Preset Time scope deadline, determine this dispatch request of response toThe second terminal sends the time of uplink authorization information, so that base station sends this uplink authorization information to the second terminalTime the channel for transmitting this uplink authorization information is not carried out to the operation of listem-before-talk LBT detection.
In the embodiment of the present invention, base station receives after the dispatch request that the second terminal sends, when the second terminalThe in the situation that priority can being scheduled and having ascending resource to be scheduled under current base station, base station canRespond this dispatch request, and send uplink authorization information (UplinkGrant, ULgrant) to the second terminal.Detect in order to reduce base station unnecessary LBT in the time transmitting, base station can be according to above-mentioned and first terminalThe information and Preset Time scope deadline of downlink data transmission, determine send uplink authorization information timeBetween, pass with first terminal downlink data with time and the above-mentioned base station of the transmission uplink authorization information that makes to determineThe interval of the deadline that defeated deadline, information comprised, within the scope of Preset Time, or sends up awardingThe system subframe numbers that system subframe numbers corresponding to power information is corresponding with the deadline that deadline, information comprisedInterval is in subframe symbolic number corresponding to Preset Time scope. Wherein, definite transmission uplink authorization informationTime is a time point, can be also a time range.
In the embodiment of the present invention, Preset Time scope is the time that LBT detects to trigger thresholding, time trigger gateLimit can be 35 microseconds (us) or 25us or 16us or be less than 16us etc., and the embodiment of the present invention is not doneLimit. For example, when time trigger gate is limited to 16us, Preset Time scope is 0～16us, while supposing cut-offBetween be a millisecond (ms), send the scope of time of uplink authorization information for (a-16*10-3，a+16*10-3)。
As the optional embodiment of one, deadline, information comprised deadline, step 103 base station rootAccording to this information and Preset Time scope, determine that this dispatch request of response sends to the second terminal deadlineThe detailed description of the invention of the time of row authorization message comprises the following steps:
13) base station is according to determining that this dispatch request of response sends uplink authorization letter to the second terminal this deadlineThe time of breath, so that the interval of the time of this deadline and transmission uplink authorization information is in Preset Time scopeIn.
In this embodiment, when deadline of base station and first terminal downlink data transmission and base station are toThe interval of time that two terminals send uplink authorization information is within the scope of Preset Time time, and base station is to the second terminalWhile sending uplink authorization information, the channel for transmitting uplink authorization information is not carried out to LBT detection, i.e. base stationWhether can use without the channel detecting for transmitting this uplink authorization information, can directly on this channel, sendUplink authorization information.
Optionally implement form as one, deadline, information comprised the system subframe numbers that deadline is corresponding,Step 103 base station is according to this information and Preset Time scope deadline, determine this dispatch request of response toThe detailed description of the invention that the second terminal sends the time of uplink authorization information comprises the following steps:
14) base station according to this deadline corresponding system subframe numbers determine this dispatch request of response to second eventuallyEnd sends the time of uplink authorization information so that this deadline corresponding system subframe numbers with send up awardingThe interval of system subframe numbers corresponding to power information is in subframe symbolic number corresponding to Preset Time scope.
In this embodiment, when the base station system corresponding with the deadline of first terminal downlink data transmissionThe interval that subframe numbers sends system subframe numbers corresponding to uplink authorization information with base station to the second terminal is when defaultBetween in subframe symbolic number corresponding to scope time, when base station sends uplink authorization information to the second terminal to for passingThe channel of defeated uplink authorization information does not carry out LBT detection, and base station is used for transmitting this uplink authorization without detectionWhether the channel of information can be used, and can directly on this channel, send uplink authorization information. Wherein, subframe symbolNumber number is the difference between subframe numbers.
In the described method of Fig. 1, base station can obtain with first terminal carries out cutting of downlink data transmissionOnly temporal information, and receive the random dispatch request sending with the second terminal of carrier wave with first terminal that access,And according to this deadline and Preset Time scope determining that this dispatch request of response sends up to the second terminalThe time of authorization message, so that base station can be to for transmission while sending uplink authorization information to the second terminalThe channel of row authorization message does not carry out the operation of listem-before-talk LBT detection. By implementing the described side of Fig. 1Method, can be by dynamically adjusting the time of base station to terminal transmission uplink authorization information, to make after adjustmentSend the interval of the time of uplink authorization information and the deadline of a upper terminal downlink data transmission defaultIn time range time, the channel for transmitting uplink authorization information is not carried out to LBT detection. Thereby minimizing base stationCarry out the number of times of LBT detection, reduce the power consumption of base station.
Refer to Fig. 2, Fig. 2 is the flow process of the control method of the another kind of Channel Detection that provides of the embodiment of the present inventionSchematic diagram. Wherein, the control method of this Channel Detection can be applied to authorizes in auxiliary access LAA technology,Use unlicensed spectrum to realize expanding on the basis of authorizing frequency spectrum. As shown in Figure 2, this Channel DetectionControl method can comprise the following steps:
201, base station obtains information deadline of carrying out downlink data transmission with first terminal.
In the embodiment of the present invention, deadline, information can include but not limited to that (be downlink data deadlineThe end time of transmission) and deadline corresponding system subframe numbers etc. at least one.
202, the second terminal of the random access of base station reception sends by Physical Uplink Control Channel PUCCHDispatch request.
In the embodiment of the present invention, first terminal and the second terminal can be same terminals, can be also differentTwo terminals, the carrier wave that base station and first terminal downlink data transmission are used and base station and the second terminal are enteredIt is identical that row PUCCH transmits the carrier wave using. The second terminal can be periodically to send scheduling to ask to base stationAsk, when base station receives after the dispatch request of the second terminal transmission, base station possibility is preferential because of the second terminalLevel is too low and when not being scheduled or thering is no available ascending resource, and not response scheduling request, second eventuallyEnd can periodically send dispatch request to base station, until base station in response.
203, base station is according to this information and Preset Time scope deadline, determine this dispatch request of response toThe second terminal sends the time of uplink authorization information, so that base station is while sending uplink authorization information to the second terminalChannel for transmitting uplink authorization information is not carried out to the operation of listem-before-talk LBT detection.
In the embodiment of the present invention, Preset Time scope is the time that LBT detects to trigger thresholding, time trigger gateLimit can or be less than 16us etc. for 35us or 25us or 16us, and the embodiment of the present invention is not construed as limiting.
204, base station receives the number of times of the dispatch request of the second terminal transmission in the statistics object time.
In the embodiment of the present invention, the object time be base station receive first second terminal send dispatch request timeBetween to time interval of crash time of definite transmission uplink authorization information. By deadline information andThe time of the definite transmission uplink authorization information of Preset Time scope can be a time range, sends upThe crash time of authorization message is the border of this time range.
205, base station judges that whether this number of times is less than or equal to default maximum retransmit threshold value, if so, carries outStep 206; If not, perform step 207.
In the embodiment of the present invention, default maximum retransmit threshold value is that permission the second terminal of presetting repeats to base stationSend the maximum times of dispatch request. Default maximum retransmit threshold value can preset and be stored in base station.
206, the dispatch request that the second terminal that base station in response receives for the N time sends, is not carrying out LBTDetect under operation and send uplink authorization information to the second terminal.
In the embodiment of the present invention, base station is receiving after the dispatch request of the second terminal transmission, sending out of determiningThe time of serving row authorization message meets in the situation of not carrying out LBT detection, and base station can not make an immediate response thisDispatch request sends uplink authorization information to the second terminal, but can select to continue to wait for the mistake of waiting forCheng Zhong, the second terminal can periodically send dispatch request to base station, and base station often receives once scheduling pleaseAsk, can judge that whether this dispatch request of response is still full to the time of the second terminal transmission uplink authorization informationFoot is not carried out the condition that LBT detects, i.e. this dispatch request of judgement response sends uplink authorization letter to the second terminalWhether the time of breath and the interval of the deadline that information comprises deadline still remain on Preset Time scopeIn, until the time that sends uplink authorization information to the second terminal be tending towards critical value. The mode of base station to wait forSend uplink authorization information, dynamically adjusted the time that sends uplink authorization information, base station is sent out in waitServe in the process of row authorization message, can communicate with the other-end that is connected this base station, improve communicationEfficiency.
In the embodiment of the present invention, when receiving in the object time, the number of times of dispatch request that the second terminal sends is littleIn or equal default maximum retransmit threshold value, mean when this number of times does not also exceed default maximum retransmit threshold value,The time that sends uplink authorization information has reached critical value, and now base station no longer continues to wait for, can respond NInferior receive second terminal send dispatch request, do not carry out LBT detect operation under send out to the second terminalServe row authorization message, wherein, N is the positive integer that is not more than this number of times.
207, the dispatch request that the second terminal that base station in response receives for the M time sends, is not carrying out LBTDetect under operation and send uplink authorization information to the second terminal.
In the embodiment of the present invention, when receiving in the object time, the number of times of dispatch request that the second terminal sends is largeIn default maximum retransmit threshold value, mean when this number of times exceeds default maximum retransmit threshold value, send upThe time of authorization message does not also reach critical value, now, the second terminal at most can only to base station transmission times withThe default identical dispatch request of maximum retransmit threshold value, base station can respond the second terminal receiving for the M timeThe dispatch request sending, is not carrying out sending uplink authorization information to the second terminal under LBT detection operation, itsIn, M is the positive integer that is not more than default maximum retransmit threshold value.
In the embodiment of the present invention, when base station sends after uplink authorization information to the second terminal, the second terminal canRespond this uplink authorization information and base station and carry out PUSCH (PhysicalUplinkSharedChannel, physicsUplink Shared Channel) transmission. When base station is up the awarding of the upper transmission of subframe n (n is not less than 0 positive integer)When power information, give the TA (TimingAdvance, Timing Advance) of the second terminal configuration according to base station, baseStand and can control the second terminal carry out PUSCH transmission on subframe n+k (k is not less than 0 positive integer).Wherein, under FDD (FrequencyDivisionDuplex, FDD) system, k is 4; At TDDUnder (TimeDivisionDuplex, time division duplex) system, k is more than or equal to 4.
See also Fig. 3, Fig. 3 is a kind of up-downgoing transfer of data schematic diagram that the embodiment of the present invention provides.As shown in Figure 3, each little lattice represents a subframe, supposes that base station uploads defeated uplink authorization n subframeWhen information, can control the second terminal and carry out PUSCH transmission at least the n+4 subframe. In addition base,Stand and the deadline of first terminal downlink data transmission of the interval with the time of base station transmission uplink authorization informationWithin the scope of Preset Time.
Wherein, the Preset Time scope definition that LBT detection need not be carried out in above base station is subframe border, considersThe unit being converted into after the time to subframe is millisecond, and the time range unit here should be also millisecond, and sonSymbol in frame also should be converted into corresponding millisecond. Certainly, in view of the chronomere that LBT detects, this modelEnclosing unit can be also microsecond. In addition, when under the start node of the up burst of the second terminal or first terminalIt is not while being positioned at border that row transmits deadline, can in this subframe, send for descending thick same by remaining symbolInitial signal (initialsignal) or stick signal (reservationsignal) that step and/or channel retain.
In the embodiment of the present invention, by implementing Fig. 2 described method, can by dynamically adjust base station toTerminal sends the time of uplink authorization information, and the number of times that can reduce base station and carry out LBT detection, reduces base stationPower consumption. In addition, introduced the concept of terminal transmission dispatch request maximum threshold, can adjust more flexiblyHaircut and serve the time of row authorization message.
Refer to Fig. 4, Fig. 4 is the flow process of the control method of another Channel Detection of providing of the embodiment of the present inventionSchematic diagram. Wherein, the control method of this Channel Detection can be applied to authorizes in auxiliary access LAA technology,Use unlicensed spectrum to realize expanding on the basis of authorizing frequency spectrum. As shown in Figure 4, this Channel DetectionControl method can comprise the following steps:
401, base station obtains information deadline of carrying out downlink data transmission with first terminal.
In the embodiment of the present invention, deadline, information can include but not limited to deadline and deadline pairAt least one in the system subframe numbers of answering etc.
As the optional embodiment of one, step 401 base station obtains with first terminal carries out downlink data biographyDefeated deadline, the detailed description of the invention of information can comprise the following steps:
41) downlink data transmission is carried out by PDSCH channel and first terminal in base station, in downlink data transmissionCarry reference signal, so that this reference signal of first terminal demodulation the channel to this PDSCH of base station feedbackStatus information;
42) information deadline of this downlink data transmission is determined in base station according to this channel condition information.
In this embodiment, reference signal can be CRS, DMRS, CSI-RS etc., and the present invention is realExecuting example is not construed as limiting. Channel condition information, namely CSI, generally can include but not limited to: PMI, CQI,RI and PTI etc.
402, the second terminal of the random access of base station reception sends by Physical Uplink Control Channel PUCCHDispatch request.
In the embodiment of the present invention, first terminal and the second terminal can be same terminals, can be also differentTwo terminals.
As the optional embodiment of one, step 402 base station receives the second terminal of random access and passes through thingThe detailed description of the invention of the dispatch request that reason ascending control channel PUCCH sends can comprise the following steps:
43) the second terminal of the random access of base station reception is passed through Physical Uplink Control Channel PUCCH every specificThe dispatch request that time sends to base station.
403, this dispatch request of base station in response, sends uplink authorization information and indication information to the second terminal, shouldIndication information comprises that the second terminal response uplink authorization information that is used to indicate and base station carry out PUSCH transmissionWhether initial time and being used to indicate carries out the identification information that listem-before-talk LBT detects, so that the second terminalWhile carrying out PUSCH transmission with base station, PUSCH is not carried out the operation of LBT detection.
In the embodiment of the present invention, when the priority of the second terminal can be scheduled and have up under current base stationIn the situation that resource can be scheduled, base station can respond the dispatch request that the second terminal sends, and base station is to secondWhen terminal sends uplink authorization information, can also send indication information, this indication information to the second terminalCan be used to indicate the initial time of the second terminal response uplink authorization information and base station process PUSCH transmission,Can also be used to indicate and whether carry out the identification information that LBT detects, when the initial time of PUSCH transmission withThe interval of the deadline that deadline, information comprised is within the scope of Preset Time time, or when PUSCH transmissionThe interval of the system subframe numbers that corresponding system subframe numbers is corresponding with the deadline that deadline, information comprised existsIn subframe symbolic number corresponding to Preset Time scope time, above-mentionedly whether carry out identification information that LBT detects by baseStation be configured to not carry out LBT detect, with make the second terminal and base station carry out PUSCH transmit time pairPUSCH channel does not carry out the operation of LBT detection. Wherein, the above-mentioned mark letter of whether carrying out LBT detectionBreath, for representing whether the second terminal carries out the operation of LBT detection, can represent by a flag exampleAs: 0 representative is not carried out LBT and is detected, and 1 representative is carried out LBT and detected; Or 0 representative is carried out LBT and is detected,1 representative is not carried out LBT and is detected.
In the embodiment of the present invention, the carrier wave that base station and first terminal downlink data transmission are used and base station andIt is identical that the PUSCH that two terminals are carried out transmits the carrier wave using. Preset Time scope be LBT detect timeBetween trigger thresholding, it can be 35us that this is triggered thresholding time, or 25us, or 16us or be less than 16us etc.,The embodiment of the present invention is not construed as limiting. The second terminal response uplink authorization information and base station of this indication information instructionThe initial time of carrying out PUSCH transmission can be a time point, can be also a time range.
See also Fig. 5, Fig. 5 is the another kind of up-downgoing transfer of data schematic diagram that the embodiment of the present invention provides.As shown in Figure 5, what the terminal here referred to is the second terminal, and each little lattice represents a subframe, supposes baseStanding in n subframe, to upload defeated uplink authorization information (be that terminal receives uplink authorization letter in n subframeBreath) time, can control the second terminal and carry out PUSCH transmission at least the n+4 subframe. In addition base,Stand with deadline of first terminal downlink data transmission and the PUSCH that the second terminal is carried out transmit initialThe interval of time is within the scope of Preset Time.
In the embodiment of the present invention, by implementing the described method of Fig. 4, can be by control terminal and base stationThe initial time of PUSCH transmission, to make initial time and a upper terminal terminal of PUSCH transmissionWhen terminal is carried out PUSCH transmission within the scope of Preset Time time at the interval of the deadline of downlink data transmissionCan not carry out LBT detection, thereby reduce the number of times that terminal is carried out LBT detection, reduce the power consumption of terminal.
Refer to Fig. 6, Fig. 6 is the flow process of the control method of another Channel Detection of providing of the embodiment of the present inventionSchematic diagram. Wherein, the control method of this Channel Detection can be applied to authorizes in auxiliary access LAA technology,Use unlicensed spectrum to realize expanding on the basis of authorizing frequency spectrum. As shown in Figure 6, this Channel DetectionControl method can comprise the following steps:
601,, when after the random access base station of terminal, terminal is passed through Physical Uplink Control Channel PUCCH to base stationSend dispatch request.
As the optional embodiment of one, step 601 is when after the random access base station of terminal, and terminal is passed through thingReason ascending control channel PUCCH sends detailed description of the invention from dispatch request to base station can comprise following stepRapid:
61), when after the random access base station of terminal, terminal is passed through Physical Uplink Control Channel PUCCH every specificTime sends dispatch request to base station.
602, terminal receives uplink authorization information and the indication information that this dispatch request of base station in response sends, and this refers toShowing that information comprises is used to indicate this uplink authorization information of terminal response and the initial of PUSCH transmission carried out in base stationWhether time and being used to indicate carries out the identification information that LBT detects.
In the embodiment of the present invention, when the priority of terminal can be scheduled and have ascending resource under current base stationIn the situation that can be scheduled, the dispatch request that base station can response terminal sends, and sending up to terminalWhen authorization message, can also send indication information to terminal, this indication information can be used to indicate terminalWhether the initial time that PUSCH transmission is carried out in response uplink authorization information and base station, can also be used to indicate and holdThe identification information that row LBT detects, obtain when the initial time of PUSCH transmission and base station and first terminalCarry out the interval of the deadline that information comprises deadline of downlink data transmission within the scope of Preset TimeTime, or as PUSCH, to transmit corresponding system subframe numbers corresponding with the deadline that deadline, information comprisedThe interval of system subframe numbers in subframe symbolic number corresponding to Preset Time scope time, above-mentioned whether executionThe identification information that LBT detects is configured to not carry out LBT by base station and detects. Wherein, the PUSCH of instruction passesDefeated initial time can be a time point, can be also a time range. The above-mentioned LBT that whether carries outThe identification information detecting is for representing whether terminal carries out the operation of LBT detection, can be by a flag 0Or 1 represent.
In the embodiment of the present invention, this terminal and first terminal can be same terminals, can be also differentTwo terminals. The carrier wave that base station and first terminal downlink data transmission are used and base station and this terminal are carried outIt is identical that PUSCH transmits the carrier wave using.
In the embodiment of the present invention, when base station is up the awarding of the upper transmission of subframe n (n is not less than 0 positive integer)When power information, give the timing advance TA of this terminal configuration according to base station, it is passable that this terminal can be controlled in base stationOn subframe n+k (k is not less than 0 positive integer), carry out PUSCH transmission. Wherein, in FDD systemUnder, k is 4; Under TDD system, k is more than or equal to 4.
In the embodiment of the present invention, Preset Time scope is the time that LBT detects to trigger thresholding. This time triggersThresholding can be 35us, or 25us, or 16us or be less than 16us etc., and the embodiment of the present invention is not construed as limiting.
603, terminal is determined the initial time of carrying out PUSCH transmission with base station according to this indication information, so thatWhen PUSCH transmission is carried out in terminal and base station, PUSCH is not carried out the operation of LBT detection.
In the embodiment of the present invention, as shown in Figure 5, suppose that base station uploads defeated uplink authorization letter n subframeBreath is when (being that terminal receives uplink authorization information in n subframe), can control terminal at least the n+4In individual subframe, carry out PUSCH transmission. In addition, the deadline of base station and first terminal downlink data transmission andThe interval of the initial time of the PUSCH transmission that base station and terminal are carried out is within the scope of Preset Time.
In the embodiment of the present invention, by implementing the described method of Fig. 6, can receive the terminal of base station instructionThe initial time of carrying out PUSCH transmission with base station, to make the initial time of PUSCH transmission and upper oneThe interval of the deadline of terminal downlink data transmission within the scope of Preset Time time terminal carry out PUSCH biographyWhen defeated, can not carry out LBT detection, thereby reduce the number of times that terminal is carried out LBT detection, reduce the merit of terminalConsumption.
Refer to Fig. 7, Fig. 7 is the structural representation of a kind of base station of providing of the embodiment of the present invention, for carrying outThe control method of the Channel Detection that the embodiment of the present invention provides. As shown in Figure 7, this base station can comprise:
Acquiring unit 701, for obtaining information deadline of carrying out downlink data transmission with first terminal.
In the embodiment of the present invention, in LAA technology, base station both can be operated in mandate frequency range, also can workDo in unauthorized frequency range. When base station and first terminal carry out downlink data transmission, can obtain this lower line numberReportedly defeated information deadline. Deadline information can include but not limited to (descend line number deadlineThe reportedly defeated end time) and deadline corresponding system subframe numbers etc. at least one. DeadlineCan be converted to corresponding system subframe numbers according to preset rules, here deadline corresponding system subframe numbersFor base station and system subframe numbers corresponding under the second terminal transmission, as base station under LTE system and the second terminal passThe system subframe numbers of defeated correspondence. Preset rules can be existing conversion method, and the embodiment of the present invention is not limitFixed.
Receiving element 702, passes through Physical Uplink Control Channel for the second terminal that receives random accessThe dispatch request that PUCCH sends.
In the embodiment of the present invention, first terminal and the second terminal can be same terminals, can be also differentTwo terminals, the embodiment of the present invention is not construed as limiting. At same carrier wave, with under base station, the second terminal can be to baseStand and initiate random access, successfully to access this base station. On the basis that the second terminal sends in support dispatch request,Can send dispatch request to base station by the UCI of PUCCH. First terminal and the second terminal can with carrier waveCarry out to be interpreted as carrier wave that base station and first terminal downlink data transmission are used and base station and the second terminalIt is identical that PUCCH transmits the carrier wave using.
The first determining unit 703 for according to this information and Preset Time scope, is determined response deadlineThis dispatch request sends the time of uplink authorization information to the second terminal, so that base station sends and is somebody's turn to do to the second terminalWhen uplink authorization information, the channel for transmitting this uplink authorization information is not carried out to listem-before-talk LBT detectionOperation.
In the embodiment of the present invention, receiving element 702 receives after the dispatch request that the second terminal sends, theThe in the situation that the priority of two terminals can being scheduled and having ascending resource to be scheduled under current base station,Base station can respond this dispatch request, and sends uplink authorization information to the second terminal. Exist in order to reduce base stationLBT unnecessary while transmission detects, and the first determining unit 703 can be obtained according to acquiring unit 701Above-mentioned and first terminal downlink data transmission deadline information and base station in the Preset Time model storedEnclose, determine the time that sends uplink authorization information, with time of the transmission uplink authorization information that makes to determine withAbove-mentioned base station with the interval of the deadline that information comprises deadline of first terminal downlink data transmission in advanceIf in time range, or send system subframe numbers corresponding to uplink authorization information and deadline information compriseDeadline corresponding system subframe numbers interval in subframe symbolic number corresponding to Preset Time scope. ItsIn, the time of definite transmission uplink authorization information is a time point, can be also a time range.
In the embodiment of the present invention, Preset Time scope is the time that LBT detects to trigger thresholding, time trigger gateLimit can or be less than 16us etc. for 35us or 25us or 16us, and the embodiment of the present invention is not construed as limiting.
As the optional embodiment of one, in the time that deadline, information comprised deadline, first determines listUnit 703, according to this information and Preset Time scope, determines this dispatch request of response to second eventually deadlineThe detailed description of the invention that end sends the time of uplink authorization information can be:
The first determining unit 703 is according to determining that this dispatch request of response sends to the second terminal this deadlineThe time of row authorization message, so that presetting with the interval of the time that sends uplink authorization information this deadlineIn time range.
As the optional embodiment of one, when deadline information comprise the system subframe that deadline is correspondingNumber time, the first determining unit 703, according to this information and Preset Time scope, determines that response should deadlineThe detailed description of the invention that dispatch request sends the time of uplink authorization information to the second terminal can be:
The first determining unit 703 is according to this dispatch request of the definite response of system subframe numbers corresponding to this deadlineSend the time of uplink authorization information to the second terminal so that this deadline corresponding system subframe numbers with send outServe the interval of system subframe numbers corresponding to row authorization message in subframe symbolic number corresponding to Preset Time scopeIn.
As the optional embodiment of one, see also Fig. 8, Fig. 8 be the embodiment of the present invention provide anotherA structural representation for base station, for carrying out the control method of the Channel Detection that the embodiment of the present invention provides.Wherein, the base station shown in Fig. 8 is to obtain at the enterprising one-step optimization in the basis of the base station shown in Fig. 7. With Fig. 7Shown base station is compared, and in the base station shown in Fig. 8, acquiring unit 701 can comprise:
Transmission unit 7011, for being undertaken descending by Physical Downlink Shared Channel PDSCH and first terminalTransfer of data, carries reference signal in downlink data transmission, so that this reference signal of first terminal demodulation alsoTo the channel condition information of base station feedback PDSCH;
The second determining unit 7012, when determining the cut-off of downlink data transmission according to this channel condition informationBetween information.
In this embodiment, reference signal can be CRS, DMRS, CSI-RS etc., and the present invention is realExecuting example is not construed as limiting. Channel condition information, namely CSI, generally can include but not limited to: PMI, CQI,RI and PTI etc.
As the optional embodiment of one, the base station shown in Fig. 8 can also comprise:
Statistic unit 704, for add up in the object time, receive dispatch request that the second terminal sends timeNumber, the time that the object time receives the dispatch request that the second terminal sends first for base station is to definite transmission instituteState the time interval of the crash time of uplink authorization information;
Judging unit 705, for judging whether this number of times is less than or equal to default maximum retransmit threshold value;
Transmitting element 706, is less than or equal to default maximum retransmit for judging this number of times when judging unit 705When threshold value, respond the dispatch request of the second terminal transmission receiving for the N time, do not carrying out LBT detectionUnder operation, send described uplink authorization information to the second terminal, N is the positive integer that is not more than this number of times;
Transmitting element 706, is also greater than default maximum retransmit thresholding for judge this number of times when judging unit 705When value, respond the dispatch request of the second terminal transmission receiving for the M time, do not carrying out LBT detection operationLower to the second terminal transmission uplink authorization information, M is the positive integer that is not more than default maximum retransmit threshold value.
In the embodiment of the present invention, by implementing the base station shown in Fig. 7 and Fig. 8, can be by dynamically adjusting baseStand and send the time of uplink authorization information to terminal, the number of times that can reduce base station and carry out LBT detection, reducesThe power consumption of base station. In addition, introduced the concept of terminal transmission dispatch request maximum threshold, can be more flexibleAdjustment send time of uplink authorization information.
Refer to Fig. 9, Fig. 9 is the structural representation of another base station of providing of the embodiment of the present invention, for holdingThe control method of the Channel Detection that the row embodiment of the present invention provides. As shown in Figure 9, this base station 900 can be wrappedDraw together: at least one processor 901, for example CPU (CentralProcessingUnit, central processing unit),At least one input unit 902, at least one output device 903, memory 904 assemblies such as grade. Wherein, thisA little assemblies communicate connection by one or more bus 905. It will be understood by those skilled in the art that Fig. 9Shown in the structure of base station do not form the restriction to the embodiment of the present invention, it can be both busbar network,Also can be hub-and-spoke configuration, can also comprise the parts more more or less than diagram, or combine some parts,Or different parts are arranged. Wherein:
In the embodiment of the present invention, input unit 902 can include line interface, wave point etc., Ke YiyongIn signal of receiving terminal uplink etc. Output device 903 can include line interface, wave point etc.,Can be for to terminal downstream transmission signals etc.
In the embodiment of the present invention, memory 904 can be high-speed RAM memory, also can right and wrong unstableMemory, for example at least one magnetic disc store. Memory 904 can also be optionally at least one positionIn the storage device away from aforementioned processing device 901. As shown in Figure 9, in memory 904, can comprise applicationProgram and data etc., the embodiment of the present invention is not construed as limiting.
In the base station shown in Fig. 9, processor 901 can be for calling the application program of storage in memory 904To carry out following operation:
Obtain information deadline of carrying out downlink data transmission with first terminal;
Control inputs device 902 receives the second terminal of random access by Physical Uplink Control Channel PUCCHThe dispatch request sending, wherein, the carrier wave that base station and first terminal downlink data transmission are used and second eventuallyIt is identical that the PUCCH of end transmits the carrier wave using;
According to the Preset Time scope of storage in this information and memory 904, determine that response should deadlineDispatch request sends the time of uplink authorization information to the second terminal, so that at output device 903 to second eventuallyEnd does not carry out listem-before-talk LBT to the channel for transmitting this uplink authorization information while sending uplink authorization informationThe operation detecting.
Wherein, first terminal and first terminal can be same terminals, can be also different terminals. When defaultBetween scope be LBT detect time trigger thresholding. It can be 35us that this time is triggered thresholding, or 25us, or16us or be less than 16us etc., the embodiment of the present invention is not construed as limiting.
As the optional embodiment of one, processor 901 obtains with first terminal and carries out downlink data transmissionDeadline information detailed description of the invention can be:
Control output device 903 and carry out downlink data by Physical Downlink Shared Channel PDSCH and first terminalTransmission, carries reference signal in downlink data transmission, so that this reference signal of first terminal demodulation to baseStand and feed back the channel condition information of this PDSCH;
Determine information deadline of downlink data transmission according to this channel condition information.
As the optional embodiment of one, this, information comprised deadline, 901 of processors deadlineAccording to the Preset Time scope of storage in this information and memory 904, determine that this scheduling of response please deadlineAsk and send the detailed description of the invention of the time of uplink authorization information to the second terminal and can be:
According to determine this deadline this dispatch request of response to the second terminal send uplink authorization information timeBetween, so that store in memory 904 at this deadline and the interval of time that sends uplink authorization informationWithin the scope of Preset Time.
As the optional embodiment of one, this, information comprised the system subframe that deadline is corresponding deadlineNumber, processor 901 is according to the Preset Time scope of storage in this information and memory 904 deadline,Determine that this dispatch request of response can to the detailed description of the invention of the time of the second terminal transmission uplink authorization informationFor:
System subframe numbers definite response this dispatch request corresponding according to this deadline sends to the second terminalThe time of row authorization message so that this deadline corresponding system subframe numbers with send uplink authorization information pairSubframe symbolic number corresponding to Preset Time scope that store in memory 904 at the interval of the system subframe numbers of answeringIn.
As the optional embodiment of one, processor 901 can also call the application of storage in memory 904Program, and carry out following operation:
The number of times that receives the dispatch request of the second terminal transmission in the statistics object time, this object time is baseCritical to definite transmission uplink authorization information of time of receiving first the dispatch request that the second terminal sends of standingThe time interval of time;
Judge whether this number of times is less than or equal to the default maximum retransmit threshold value of storage in memory 904;
In the time that this number of times is less than or equal to the default maximum retransmit threshold value of storage in memory 904, respond defeatedEnter the dispatch request that the second terminal that device 902 receives for the N time sends, control output device 903 notCarry out sending uplink authorization information to the second terminal under LBT detection operation, N is be not more than this number of times just wholeNumber;
In the time that this number of times is greater than default maximum retransmit threshold value, response input unit 902 receives for the M timeThe dispatch request that the second terminal sends, controls output device 903 and is not carrying out under LBT detection operation to secondTerminal sends uplink authorization information, and M is the positive integer that is not more than default maximum retransmit threshold value.
Particularly, the present invention can be implemented in conjunction with Fig. 1 or Fig. 2 introduction in the base station of introducing in the embodiment of the present inventionThe control method embodiment of Channel Detection in part or all of flow process.
In the embodiment of the present invention, by implementing the base station shown in Fig. 9, can be by dynamically adjusting base station to endEnd sends the time of uplink authorization information, and the number of times that can reduce base station and carry out LBT detection reduces base stationPower consumption. In addition, introduced the concept of terminal transmission dispatch request maximum threshold, can adjust more flexiblySend the time of uplink authorization information.
Refer to Figure 10, Figure 10 is the structural representation of a kind of base station of providing of the embodiment of the present invention, for holdingThe control method of the Channel Detection that the row embodiment of the present invention provides. As shown in figure 10, this base station can comprise:
Acquiring unit 1001, for obtaining information deadline of carrying out downlink data transmission with first terminal.
In the embodiment of the present invention, deadline, information can include but not limited to deadline and deadline pairAt least one in the system subframe numbers of answering etc.
Receiving element 1002, passes through Physical Uplink Control Channel for the second terminal that receives random accessThe dispatch request that PUCCH sends.
In the embodiment of the present invention, first terminal and the second terminal can be same terminals, can be also differentTwo terminals.
As the optional embodiment of one, receiving element 1002 specifically can be for receiving of random accessThe dispatch request that two terminals send to base station every special time by Physical Uplink Control Channel PUCCH.
Transmitting element 1003, for responding this dispatch request, sends uplink authorization information and refers to the second terminalShow information, this indication information comprises and is used to indicate this uplink authorization information of the second terminal response and thing is carried out in base stationManage the initial time of Uplink Shared Channel PUSCH transmission and be used to indicate whether carry out listem-before-talk LBTThe identification information detecting, when the initial time of PUSCH transmission and deadline that deadline, information comprisedInterval is within the scope of Preset Time time, or believes with deadline when PUSCH transmits corresponding system subframe numbersBreath deadline of comprising corresponding system subframe numbers interval in subframe symbolic number corresponding to Preset Time scopeWhen interior, the above-mentioned identification information of whether carrying out LBT detection is configured to not carry out LBT by base station and detects, so thatWhen PUSCH transmission is carried out in the second terminal and base station, PUSCH is not carried out the operation of LBT detection.
In the embodiment of the present invention, the above-mentioned identification information of whether carrying out LBT detection for representing the second terminal isThe no operation of carrying out LBT detection, can represent with a flag bit 0 or 1. Under base station and first terminalThe PUSCH that the carrier wave that row transfer of data is used and base station and the second terminal are carried out transmits the carrier wave usingIdentical. Preset Time scope is the time that LBT detects to trigger thresholding, and it can be 35us that this time is triggered thresholding,Or 25us, or 16us or be less than 16us etc., the embodiment of the present invention is not construed as limiting. This indication information instructionWhen the initial time that PUSCH transmission is carried out in the second terminal response uplink authorization information and base station can be oneBetween point, can be also a time range.
As the optional embodiment of one, see also Figure 11, Figure 11 is that the embodiment of the present invention providesThe structural representation of another base station, for carrying out the control method of the Channel Detection that the embodiment of the present invention provides.Wherein, the base station shown in Figure 11 is to obtain at the enterprising one-step optimization in the basis of the base station shown in Figure 10. WithBase station shown in Figure 10 is compared, and in the base station shown in Figure 11, acquiring unit 1001 can comprise:
Transmission unit 1001a, for being undertaken descending by Physical Downlink Shared Channel PDSCH and first terminalTransfer of data, carries reference signal in downlink data transmission, so that this reference signal of first terminal demodulation alsoTo the channel condition information of base station feedback PDSCH;
Determining unit 1001b, for determining letter deadline of downlink data transmission according to this channel condition informationBreath.
In this embodiment, reference signal can be CRS, DMRS, CSI-RS etc., and the present invention is realExecuting example is not construed as limiting. Channel condition information, namely CSI, generally can include but not limited to: PMI, CQI,RI and PTI etc.
In the embodiment of the present invention, by implementing the base station shown in Figure 10 and Figure 11, can pass through control terminalWith the initial time of the PUSCH transmission of base station, to make initial time and a upper end of PUSCH transmissionThe interval of the deadline of end terminal downlink data transmission within the scope of Preset Time time terminal carry out PUSCHWhen transmission, can not carry out LBT detection, thereby reduce the number of times that terminal is carried out LBT detection, reduction terminalPower consumption.
Refer to Figure 12, Figure 12 is the structural representation of another base station of providing of the embodiment of the present invention, forThe control method of the Channel Detection that the execution embodiment of the present invention provides. As shown in figure 12, this base station 1200 canTo comprise: at least one processor 1201, for example CPU, at least one input unit 1202, at least oneOutput device 1203, memory 1204 assemblies such as grade. Wherein, these assemblies are by one or more bus 1205Communicate connection. The structure that it will be understood by those skilled in the art that the base station shown in Figure 12 does not formTo the restriction of the embodiment of the present invention, it can be both busbar network, can be also hub-and-spoke configuration, all rightComprise the parts more more or less than diagram, or combine some parts, or different parts are arranged. ItsIn:
In the embodiment of the present invention, input unit 1202 can include line interface, wave point etc., Ke YiyongIn signal of receiving terminal uplink etc. Output device 1203 can include line interface, wave point etc.,Can be for to terminal downstream transmission signals etc.
In the embodiment of the present invention, memory 1204 can be high-speed RAM memory, can be also non-shakinessFixed memory, for example at least one magnetic disc store. Memory 1204 can also be optionally at least oneBe positioned at the storage device away from aforementioned processing device 1201. As shown in figure 12, in memory 1204, can compriseApplication program and data etc., the embodiment of the present invention is not construed as limiting.
In the base station shown in Figure 12, processor 1201 can be for calling the application of storage in memory 1204Program is to carry out following operation:
Obtain information deadline of carrying out downlink data transmission with first terminal;
The second terminal that control inputs device 1202 receives random access is passed through Physical Uplink Control ChannelThe dispatch request that PUCCH sends;
Respond this dispatch request, control output device 1203 and send uplink authorization information and instruction to the second terminalInformation, this indication information comprises and is used to indicate this uplink authorization information of the second terminal response and physics is carried out in base stationThe initial time of Uplink Shared Channel PUSCH transmission and be used to indicate whether carry out listem-before-talk LBT inspectionThe identification information of surveying;
When is storing at initial time and the interval of the deadline that deadline, information comprised of PUSCH transmissionWithin the scope of the Preset Time that device 1204 is stored time, or when PUSCH transmit corresponding system subframe numbers with cutDeadline that only temporal information comprises corresponding system subframe numbers interval at son corresponding to Preset Time scopeIn frame symbolic number time, the above-mentioned identification information of whether carrying out LBT detection is configured to not carry out LBT inspection by base stationSurvey, so that the second terminal and base station carry out when PUSCH transmits PUSCH not carry out the operation of LBT detection,Wherein, the above-mentioned identification information of whether carrying out LBT detection is for representing whether the second terminal carries out LBT detectionOperation, the carrier wave that base station and first terminal downlink data transmission are used and base station and the second terminal are carried outIt is identical that PUSCH transmits the carrier wave using.
Wherein, first terminal and first terminal can be same terminals, can be also different terminals. When defaultBetween scope be LBT detect time trigger thresholding. It can be 35us that this time is triggered thresholding, or 25us, or16us or be less than 16us etc., the embodiment of the present invention is not construed as limiting.
As the optional embodiment of one, processor 1201 obtains with first terminal and carries out downlink data transmissionDeadline information detailed description of the invention can be:
Control output device 1203 and carry out lower line number by Physical Downlink Shared Channel PDSCH and first terminalReportedly defeated, in downlink data transmission, carry reference signal so that this reference signal of first terminal demodulation and toThe channel condition information of PDSCH described in base station feedback;
Determine information deadline of downlink data transmission according to this channel condition information.
As the optional embodiment of one, processor 1201 control inputs devices 1202 receive random accessThe detailed description of the invention of the dispatch request that sends by Physical Uplink Control Channel PUCCH of the second terminal canThink:
The second terminal that control inputs device 1202 receives random access is passed through Physical Uplink Control ChannelThe dispatch request that PUCCH sends to base station every special time.
Particularly, the channel that the present invention introduces in conjunction with Fig. 4 can be implemented in the base station of introducing in the embodiment of the present inventionPart or all of flow process in the control method embodiment detecting.
In the embodiment of the present invention, by implementing the base station shown in Figure 12, can be by control terminal and base stationThe initial time of PUSCH transmission, to make under the initial time and a upper terminal terminal of PUSCH transmissionThe interval of the deadline of row transfer of data can when terminal is carried out PUSCH transmission within the scope of Preset Time timeNot carry out LBT detection, thereby reduce the number of times that terminal is carried out LBT detection, reduce the power consumption of terminal.
Refer to Figure 13, Figure 13 is the structural representation of a kind of terminal of providing of the embodiment of the present invention, for holdingThe control method of the Channel Detection that the row embodiment of the present invention provides. As shown in figure 13, this terminal can comprise:
Transmitting element 1301, for when after the random access base station of terminal, passes through Physical Uplink Control ChannelPUCCH sends dispatch request to base station.
As the optional embodiment of one, transmitting element 1301 specifically can be for accessing base when terminal at randomAfter standing, by Physical Uplink Control Channel, PUCCH sends dispatch request every special time to base station.
Receiving element 1302, the uplink authorization information and the instruction that send for receiving this dispatch request of base station in responseInformation, this indication information comprises that being used to indicate terminal response uplink authorization information and base station carries out physical uplink altogetherEnjoy the initial time of channel PUSCH transmission and be used to indicate and whether carry out the mark that listem-before-talk LBT detectsKnowledge information, carries out downlink data transmission when what the initial time of PUSCH transmission and base station obtained with first terminalThe interval of the deadline that information comprises deadline within the scope of Preset Time time, or pass as PUSCHDeadline that system subframe numbers and the deadline of defeated correspondence, information comprised corresponding system subframe numbers intervalIn subframe symbolic number corresponding to Preset Time scope time, the above-mentioned identification information quilt of whether carrying out LBT detectionBase station is configured to not carry out LBT and detects.
In the embodiment of the present invention, when transmitting element 1301 sends after dispatch request to base station, can trigger receptionUnit 1302 receives the uplink authorization information that base station in response dispatch request sends. This terminal and first terminal canTo be same terminal, can be also two different terminals. Wherein, above-mentioned whether carry out LBT detectIdentification information is for representing whether terminal carries out the operation of LBT detection. Base station and first terminal downlink data passIt is identical that defeated used carrier wave and base station and this terminal are carried out the carrier wave that PUSCH transmission uses.
In the embodiment of the present invention, Preset Time scope is the time that LBT detects to trigger thresholding. This time triggersThresholding can be 35us, or 25us, or 16us or be less than 16us etc., and the embodiment of the present invention is not construed as limiting.
Determining unit 1303, for determining with base station and carry out the initial of PUSCH transmission according to this indication informationTime, so that PUSCH when transmission do not carry out LBT detection operation to PUSCH is carried out in terminal and base station.
In the embodiment of the present invention, by implementing the terminal shown in Figure 13, the terminal that can receive base station instruction is enteredThe initial time of row PUSCH transmission, to make initial time and a upper terminal of PUSCH transmission descendingThe interval of the deadline of transfer of data is passable when terminal is carried out PUSCH transmission within the scope of Preset Time timeDo not carry out LBT detection, thereby reduce the number of times that terminal is carried out LBT detection, reduce the power consumption of terminal.
Refer to Figure 14, Figure 14 is the structural representation of the another kind of terminal that provides of the embodiment of the present invention, forThe control method of the Channel Detection that the execution embodiment of the present invention provides. As shown in figure 14, this terminal 1400 canTo comprise: at least one processor 1401, for example CPU, at least one input unit 1402, at least oneOutput device 1403, memory 1404 assemblies such as grade. Wherein, these assemblies are by one or more bus 1405Communicate connection. The structure that it will be understood by those skilled in the art that the terminal shown in Figure 14 does not formTo the restriction of the embodiment of the present invention, it can be both busbar network, can be also hub-and-spoke configuration, all rightComprise the parts more more or less than diagram, or combine some parts, or different parts are arranged. ItsIn:
In the embodiment of the present invention, input unit 1402 can include line interface, wave point etc., Ke YiyongIn the signal etc. that obtains base station down and send. Output device 1403 can include line interface, wave point etc.,Can be for to base station uplink signal etc.
In the embodiment of the present invention, memory 1404 can be high-speed RAM memory, also can right and wrong unstableMemory (non-volatilememory), for example at least one magnetic disc store. Memory 1404 is optionalCan also be that at least one is positioned at the storage device away from aforementioned processing device 1401. As shown in figure 14, as oneIn the memory 1404 of kind computer-readable storage medium, can comprise operating system, application program and data etc., thisInventive embodiments is not construed as limiting.
In the terminal shown in Figure 14, processor 1401 can be for calling the application of storage in memory 1404Program is to carry out following operation:
When after the random access base station of terminal, control output device 1403 by Physical Uplink Control Channel PUCCHSend dispatch request to base station;
Control inputs device 1402 receives uplink authorization information and the indication letter that this dispatch request of base station in response sendsBreath, this indication information comprises and is used to indicate this uplink authorization information of terminal response and base station to carry out physical uplink commonEnjoy the initial time of channel PUSCH transmission and be used to indicate and whether carry out the mark that listem-before-talk LBT detectsKnowledge information, carries out downlink data transmission when what the initial time of PUSCH transmission and base station obtained with first terminalThe interval of the deadline that information comprises deadline within the scope of Preset Time time, or pass as PUSCHDeadline that system subframe numbers and the deadline of defeated correspondence, information comprised corresponding system subframe numbers intervalIn subframe symbolic number corresponding to Preset Time scope time, the above-mentioned identification information quilt of whether carrying out LBT detectionBase station is configured to not carry out LBT and detects;
Determine the initial time of carrying out PUSCH transmission with base station according to this indication information, so that terminal and base stationWhile carrying out PUSCH transmission, PUSCH is not carried out the operation of LBT detection;
Wherein, the above-mentioned identification information of whether carrying out LBT detection is for representing whether terminal carries out LBT detectionOperation, the carrier wave that base station and first terminal downlink data transmission are used and the PUSCH of base station and terminal passDefeated used carrier wave is identical.
Wherein, this terminal and first terminal can be same terminal, can be also different terminals. Preset TimeScope is the time that LBT detects to trigger thresholding. It can be 35us that this time is triggered thresholding, or 25us, or 16usOr being less than 16us etc., the embodiment of the present invention is not construed as limiting.
As the optional embodiment of one, processor 1401, when after the random access base station of terminal, is controlled outputDevice 1403 sends the detailed description of the invention of dispatch request to base station by Physical Uplink Control Channel PUCCHCan be:
When after the random access base station of terminal, control output device 1403 by Physical Uplink Control Channel PUCCHSend dispatch request every special time to described base station.
Particularly, the terminal of introducing in the embodiment of the present invention can be implemented the channel inspection that the present invention introduces in conjunction with Fig. 6Part or all of flow process in the control method embodiment surveying.
In the embodiment of the present invention, by implementing the terminal shown in Figure 14, the terminal that can receive base station instruction withThe initial time of PUSCH transmission is carried out in base station, to make initial time and a upper terminal of PUSCH transmissionThe interval of the deadline of downlink data transmission can when terminal is carried out PUSCH transmission within the scope of Preset Time timeNot carry out LBT detection, thereby reduce the number of times that terminal is carried out LBT detection, reduce the power consumption of terminal.
Module or submodule in all embodiment of the present invention, can pass through universal integrated circuit, for example CPU,Or realize by ASIC (ApplicationSpecificIntegratedCircuit, special IC).
It should be noted that, for aforesaid each embodiment of the method, for simple description, therefore it is all shownState as a series of combination of actions, but those skilled in the art should know, the present invention be not subject to describeThe restriction of sequence of movement because according to the application, certain some step can adopt other orders or simultaneouslyCarry out. Secondly, those skilled in the art also should know, the embodiment described in description all belongs to excellentSelect embodiment, related action and module might not be that the application is necessary.
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, not detailed in certain embodimentThe thin part of describing, can be referring to the associated description of other embodiment.
Step in embodiment of the present invention method can be carried out according to actual needs order and adjusted, merges and delete.
Unit in embodiment of the present invention base station and terminal can merge according to actual needs, divides and deleteSubtract.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method,Be can carry out the hardware that instruction is relevant by computer program to complete, described program can be stored in a calculatingIn machine read/write memory medium, this program, in the time carrying out, can comprise as the flow process of the embodiment of above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory,Or random access memory (RandomAccessMemory, be called for short RAM) etc. ROM).
The control method of a kind of the Channel Detection above embodiment of the present invention being provided and relevant device have carried out in detailThin introduction, has applied specific case herein principle of the present invention and embodiment has been set forth, aboveThe explanation of embodiment is just for helping to understand method of the present invention and core concept thereof; Meanwhile, for abilityThe those skilled in the art in territory, according to thought of the present invention, all have in specific embodiments and applicationsChange part, in sum, this description should not be construed as limitation of the present invention.

Claims (32)

1. a control method for Channel Detection, is applied to and authorizes in auxiliary access LAA technology, its featureBe, comprise:
Base station obtains information deadline of carrying out downlink data transmission with first terminal;
The second terminal of the random access of described base station reception sends by Physical Uplink Control Channel PUCCHDispatch request, wherein, the carrier wave that described base station and described first terminal downlink data transmission are used and described inIt is identical that the described PUCCH of the second terminal transmits the carrier wave using;
Described base station, according to described deadline information and Preset Time scope, determines that the described scheduling of response pleaseAsk the time that sends uplink authorization information to described the second terminal, so that described base station is sent out to described the second terminalWhile sending described uplink authorization information, the channel for transmitting described uplink authorization information is not carried out to listem-before-talkThe operation that LBT detects.
2. method according to claim 1, is characterized in that, described Preset Time scope is described LBTThe time of detecting is triggered thresholding.
3. method according to claim 2, is characterized in that, described time trigger gate is limited to 35us,Or 25us, or 16us or be less than 16us.
4. according to the method described in any one in claim 1-3, it is characterized in that, described base station obtain withFirst terminal carries out information deadline of downlink data transmission, comprising:
Downlink data transmission is carried out by Physical Downlink Shared Channel PDSCH and first terminal in base station, described underIn row transfer of data, carry reference signal, so that reference signal to described described in described first terminal demodulationThe channel condition information of PDSCH described in base station feedback;
Information deadline of described downlink data transmission is determined in described base station according to described channel condition information.
5. according to the method described in any one in claim 1-4, it is characterized in that, believe described deadlineBreath comprises deadline, and described base station, according to described deadline information and Preset Time scope, is determined and rungAnswer described dispatch request to send the time of uplink authorization information to described the second terminal, comprising:
Described base station is according to determining that the described dispatch request of response sends to described the second terminal described deadlineThe time of row authorization message, so that the interval of the time of described deadline and described transmission uplink authorization informationWithin the scope of Preset Time.
6. according to the method described in any one in claim 1-4, it is characterized in that, believe described deadlineBreath comprises the system subframe numbers that deadline is corresponding, and described base station is according to described deadline of information and defaultTime range, determines that the described dispatch request of response sends the time of uplink authorization information to described the second terminal,Comprise:
Described base station according to described deadline corresponding system subframe numbers determine that the described dispatch request of response is to instituteState the time that the second terminal sends uplink authorization information so that described deadline corresponding system subframe numbers withSend the interval of system subframe numbers corresponding to described uplink authorization information at subframe symbol corresponding to Preset Time scopeIn number number.
7. according to the method described in any one in claim 1-6, it is characterized in that, described method also comprises:
In the statistics object time of described base station, receive the number of times of the dispatch request of described the second terminal transmission, instituteState the object time and be time that described base station receives the dispatch request that described the second terminal sends first to determiningTime interval of crash time of the described uplink authorization information of transmission;
Described base station judges whether described number of times is less than or equal to default maximum retransmit threshold value;
In the time that described number of times is less than or equal to described default maximum retransmit threshold value, described base station in response the N timeThe dispatch request that described the second terminal receiving sends, is not carrying out under described LBT detection operation to describedThe second terminal sends described uplink authorization information, and described N is the positive integer that is not more than described number of times;
In the time that described number of times is greater than described default maximum retransmit threshold value, described base station in response receives for the M timeThe dispatch request that sends of described the second terminal, detect under operation to described second eventually not carrying out described LBTEnd sends described uplink authorization information, and described M is the positive integer that is not more than described default maximum retransmit threshold value.
8. a control method for Channel Detection, is applied to and authorizes in auxiliary access LAA technology, its featureBe, comprise:
Base station obtains information deadline of carrying out downlink data transmission with first terminal;
The second terminal of the random access of described base station reception sends by Physical Uplink Control Channel PUCCHDispatch request;
Dispatch request described in described base station in response, sends uplink authorization information and indication letter to described the second terminalBreath, described indication information comprises and is used to indicate uplink authorization information and described base described in described the second terminal responseWhether station carries out the initial time of Physical Uplink Shared Channel PUSCH transmission and is used to indicate to carry out first listeningThe rear identification information of saying that LBT detects;
When between the initial time of described PUSCH transmission and deadline that described deadline, information comprisedEvery within the scope of Preset Time time, or transmit corresponding system subframe numbers and described cut-off as described PUSCHDeadline that temporal information comprises, the interval of corresponding system subframe numbers was corresponding in described Preset Time scopeIn subframe symbolic number time, the described identification information of whether carrying out LBT detection is configured to not carry out by described base stationDescribed LBT detects so that described the second terminal and described base station carry out described PUSCH while transmitting to describedPUSCH does not carry out the operation of described LBT detection, wherein, and the described mark letter of whether carrying out LBT detectionBreath is for representing whether described the second terminal carries out the operation of described LBT detection, described base station and described firstThe described PUSCH transmission of the carrier wave that terminal downlink data transmission is used and described the second terminal is usedCarrier wave is identical.
9. method according to claim 8, is characterized in that, described Preset Time scope is described LBTThe time of detecting is triggered thresholding.
10. method according to claim 9, is characterized in that, described time trigger gate is limited to 35us,Or 25us, or 16us or be less than 16us.
Method in 11. according to Claim 8-10 described in any one, is characterized in that, described base station obtainsCarry out information deadline of downlink data transmission with first terminal, comprising:
Downlink data transmission is carried out by Physical Downlink Shared Channel PDSCH and first terminal in base station, described underIn row transfer of data, carry reference signal, so that reference signal to described described in described first terminal demodulationThe channel condition information of PDSCH described in base station feedback;
Information deadline of described downlink data transmission is determined in described base station according to described channel condition information.
Method in 12. according to Claim 8-11 described in any one, is characterized in that, described base station receivesThe dispatch request that the second terminal of random access sends by Physical Uplink Control Channel PUCCH, comprising:
Described base station receives the second terminal of random access and passes through Physical Uplink Control Channel PUCCH every spyFix time to the dispatch request of described base station transmission.
The control method of 13. 1 kinds of Channel Detection, is applied to and authorizes in auxiliary access LAA technology, its featureBe, comprise:
When after the random access base station of terminal, described terminal is passed through Physical Uplink Control Channel PUCCH to described baseStand and send dispatch request;
Described terminal receives uplink authorization information and the indication letter that dispatch request sends described in described base station in responseBreath, described indication information comprises that being used to indicate uplink authorization information and described base station described in described terminal response entersThe initial time of row Physical Uplink Shared Channel PUSCH transmission and be used to indicate whether carry out listem-before-talkThe identification information that LBT detects, when the initial time of described PUSCH transmission and described base station obtain with firstTerminal is carried out the interval of the deadline that information comprises deadline of downlink data transmission in Preset Time scopeWhen interior, or transmit corresponding system subframe numbers and described deadline, information comprised section as described PUSCHWhen only the interval of system subframe numbers corresponding to time is in subframe symbolic number corresponding to described Preset Time scope,The described identification information of whether carrying out LBT detection is configured to not carry out described LBT by described base station and detects;
Described terminal is determined with described base station and is carried out the initial of described PUSCH transmission according to described indication informationTime, so that described terminal and described base station carry out when described PUSCH transmits described PUSCH not carry outThe operation that described LBT detects;
Wherein, describedly whether carry out identification information that LBT detects for described in representing whether described terminal carry outLBT detect operation, the carrier wave that described base station and described first terminal downlink data transmission are used with described inIt is identical that the described PUSCH of terminal transmits the carrier wave using.
14. methods according to claim 13, is characterized in that, described in described Preset Time scope isThe time that LBT detects is triggered thresholding.
15. methods according to claim 14, is characterized in that, described time trigger gate is limited to 35us,Or 25us, or 16us or be less than 16us.
16. according to the method described in any one in claim 13-15, it is characterized in that, described when terminal withAfter machine access base station, described terminal sends scheduling by Physical Uplink Control Channel PUCCH to described base station pleaseAsk, comprising:
When after the random access base station of terminal, described terminal is passed through Physical Uplink Control Channel PUCCH every specificTime sends dispatch request to described base station.
17. 1 kinds of base stations, is characterized in that, comprising:
Acquiring unit, for obtaining information deadline of carrying out downlink data transmission with first terminal;
Receiving element, sends out by Physical Uplink Control Channel PUCCH for the second terminal that receives random accessThe dispatch request of sending, wherein, the carrier wave that described base station and described first terminal downlink data transmission are used andIt is identical that the described PUCCH of described the second terminal transmits the carrier wave using;
The first determining unit, for according to described deadline information and Preset Time scope, determines responseDescribed dispatch request sends the time of uplink authorization information to described the second terminal, so that described base station is to describedWhen the second terminal sends described uplink authorization information, the channel for transmitting described uplink authorization information is not carried outThe operation that listem-before-talk LBT detects.
18. base stations according to claim 17, is characterized in that, described in described Preset Time scope isThe time that LBT detects is triggered thresholding.
19. base stations according to claim 18, is characterized in that, described time trigger gate is limited to 35us,Or 25us, or 16us or be less than 16us.
20. according to the base station described in any one in claim 17-19, it is characterized in that described acquiring unitComprise:
Transmission unit, for carrying out downlink data biography by Physical Downlink Shared Channel PDSCH and first terminalDefeated, in described downlink data transmission, carry reference signal, so that reference letter described in described first terminal demodulationNumber and to the channel condition information of PDSCH described in described base station feedback;
The second determining unit, for determining the cut-off of described downlink data transmission according to described channel condition informationTime.
21. according to the base station described in any one in claim 17-20, it is characterized in that described deadlineInformation comprises deadline, and described the first determining unit is according to described deadline information and Preset Time modelEnclose, determine that the described dispatch request of response sends the mode tool of the time of uplink authorization information to described the second terminalBody is:
Described the first determining unit is according to determining the described dispatch request of response described deadline to described second eventuallyEnd sends the time of uplink authorization information so that described deadline and described transmission uplink authorization information timeBetween interval within the scope of Preset Time.
22. according to the base station described in any one in claim 17-20, it is characterized in that described deadlineInformation comprises the system subframe numbers that deadline is corresponding, and described the first determining unit is according to believing described deadlineBreath and Preset Time scope, determine that the described dispatch request of response sends uplink authorization letter to described the second terminalThe mode of the time of breath is specially:
Described base station according to described deadline corresponding system subframe numbers determine that the described dispatch request of response is to instituteState the time that the second terminal sends uplink authorization information so that described deadline corresponding system subframe numbers withSend the interval of system subframe numbers corresponding to described uplink authorization information at subframe symbol corresponding to Preset Time scopeIn number number.
23. according to the base station described in any one in claim 17-22, it is characterized in that, also wrap described base stationDraw together:
Statistic unit, for add up in the object time, receive dispatch request that described the second terminal sends timeNumber, the described object time is that described base station receives first time of dispatch request that described the second terminal sends and arrivesThe time interval of the crash time of the described uplink authorization information of definite transmission;
Judging unit, for judging whether described number of times is less than or equal to default maximum retransmit threshold value;
Transmitting element, is less than or equal to described default maximum for judging described number of times when described judging unitWhile retransmitting threshold value, respond the dispatch request of described the second terminal transmission receiving for the N time, do not carrying outDescribed LBT detects under operation and sends described uplink authorization information to described the second terminal, and described N is for being not more thanThe positive integer of described number of times;
Described transmitting element, is also greater than described default maximum for judging described number of times when described judging unitWhile retransmitting threshold value, respond the dispatch request of described the second terminal transmission receiving for the M time, do not carrying outDescribed LBT detects under operation and sends described uplink authorization information to described the second terminal, and described M is for being not more thanThe positive integer of described default maximum retransmit threshold value.
24. 1 kinds of base stations, is characterized in that, comprising:
Acquiring unit, for obtaining information deadline of carrying out downlink data transmission with first terminal;
Receiving element, sends out by Physical Uplink Control Channel PUCCH for the second terminal that receives random accessThe dispatch request of sending;
Transmitting element, for responding described dispatch request, to described the second terminal send uplink authorization information andIndication information, described indication information comprise be used to indicate described in described the second terminal response uplink authorization information withWhether described base station carries out the initial time of Physical Uplink Shared Channel PUSCH transmission and is used to indicate holdingThe identification information that row listem-before-talk LBT detects, when initial time and the described cut-off of described PUSCH transmissionThe interval of the deadline that temporal information comprises is within the scope of Preset Time time, or when described PUSCH transmissionBetween the system subframe numbers that corresponding system subframe numbers is corresponding with the deadline that described deadline, information comprisedEvery in subframe symbolic number corresponding to described Preset Time scope time, describedly whether carry out the mark that LBT detectsInformation is configured to not carry out described LBT by described base station and detects, so that described the second terminal and described base station are enteredWhen the described PUSCH transmission of row, described PUSCH is not carried out the operation of described LBT detection, wherein, described inWhether carry out identification information that LBT detects for representing whether described the second terminal carries out described LBT detectionOperation, the carrier wave that described base station and described first terminal downlink data transmission are used and described the second terminalIt is identical that described PUSCH transmits the carrier wave using.
25. base stations according to claim 24, is characterized in that, described in described Preset Time scope isThe time that LBT detects is triggered thresholding.
26. base stations according to claim 25, is characterized in that, described time trigger gate is limited to 35us,Or 25us, or 16us or be less than 16us.
27. according to the base station described in any one in claim 24-26, it is characterized in that described acquiring unitComprise:
Transmission unit, for carrying out downlink data biography by Physical Downlink Shared Channel PDSCH and first terminalDefeated, in described downlink data transmission, carry reference signal, so that reference letter described in described first terminal demodulationNumber and to the channel condition information of PDSCH described in described base station feedback;
Determining unit, for determining the deadline of described downlink data transmission according to described channel condition informationInformation.
28. according to the base station described in any one in claim 24-27, it is characterized in that described receiving elementPass through Physical Uplink Control Channel PUCCH when specific specifically for receiving the second terminal of random accessBetween the dispatch request that sends to described base station.
29. 1 kinds of terminals, is characterized in that, comprising:
Transmitting element, for when after the random access base station of described terminal, passes through Physical Uplink Control ChannelPUCCH sends dispatch request to described base station;
Receiving element, for receiving the uplink authorization information that dispatch request sends described in described base station in response and referring toShow information, described indication information comprises and is used to indicate uplink authorization information and described base described in described terminal responseWhether station carries out the initial time of Physical Uplink Shared Channel PUSCH transmission and is used to indicate to carry out first listeningThe rear identification information of saying that LBT detects, when the initial time of described PUSCH transmission and described base station obtainThe interval of the deadline that information comprises deadline of carrying out downlink data transmission with first terminal is when defaultBetween in scope time, or when described PUSCH transmit corresponding system subframe numbers and described deadline packets of informationDeadline of drawing together corresponding system subframe numbers interval in subframe symbolic number corresponding to described Preset Time scopeWhen interior, the described identification information of whether carrying out LBT detection is configured to not carry out described LBT by described base station and examinesSurvey;
Determining unit, for determining with described base station and carry out described PUSCH transmission according to described indication informationInitial time so that described terminal and described base station while carrying out described PUSCH transmission to described PUSCH notCarry out the operation of described LBT detection;
Wherein, describedly whether carry out identification information that LBT detects for described in representing whether described terminal carry outLBT detect operation, the carrier wave that described base station and described first terminal downlink data transmission are used with described inIt is identical that the described PUSCH of terminal transmits the carrier wave using.
30. terminals according to claim 29, is characterized in that, described in described Preset Time scope isThe time that LBT detects is triggered thresholding.
31. terminals according to claim 30, is characterized in that, described time trigger gate is limited to 35us,Or 25us, or 16us or be less than 16us.
32. according to the terminal described in any one in claim 29-31, it is characterized in that described transmitting elementSpecifically for when after the random access base station of terminal, by Physical Uplink Control Channel PUCCH every special timeSend dispatch request to described base station.
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Cited By (8)

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CN110972327A (en) * 2018-09-28 2020-04-07 维沃移动通信有限公司 Signal transmission method and communication equipment based on unauthorized frequency band
WO2022027679A1 (en) * 2020-08-07 2022-02-10 Oppo广东移动通信有限公司 Wireless communication method, terminal device and network device
WO2022217420A1 (en) * 2021-04-12 2022-10-20 Zte Corporation Switching between channel access procedures that include and exclude receiving before transmitting

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