CN106454881A - Data sending method, data receiving method, data sending device and data receiving device - Google Patents

Data sending method, data receiving method, data sending device and data receiving device Download PDF

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Publication number
CN106454881A
CN106454881A CN201510477781.8A CN201510477781A CN106454881A CN 106454881 A CN106454881 A CN 106454881A CN 201510477781 A CN201510477781 A CN 201510477781A CN 106454881 A CN106454881 A CN 106454881A
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China
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cca
resource location
data
resource
terminal
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CN201510477781.8A
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CN106454881B (en
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苟伟
杨玲
彭佛才
李新彩
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ZTE Corp
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ZTE Corp
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Priority to CN201510477781.8A priority Critical patent/CN106454881B/en
Priority to PCT/CN2016/091877 priority patent/WO2017020761A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0226—Traffic management, e.g. flow control or congestion control based on location or mobility
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

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

Abstract

The invention provides a data sending method, a data receiving method, a data sending device and a data receiving device. The data sending method comprises the following steps: a base station notifies a first terminal of the resource location information of uplink clear channel assessment UL CCA of an unauthorized carrier, wherein the resource location information of UL CCA is used for the first terminal to perform CCA detection; the base station sends first data to a second terminal through a first specified resource, wherein the location information of the first specified resource is different from the resource location information of UL CCA; or, the base station schedules a third terminal to send second data to the base station at a second specified resource, wherein the location information of the second specified resource is different from the resource location information of UL CCA. According to the invention, the problem that waste of resources is caused as UL CCA and effective data cannot be sent at the same time is solved, simultaneous sending of UL CCA and effective data in an LAA system is realized, and waste of resources is reduced.

Description

Data is activation, method of reseptance and device
Technical field
The present invention relates to the communications field, in particular to a kind of data is activation, method of reseptance and device.
Background technology
Up to now it is commonly known that Long Term Evolution (Long-Term Evolution, referred to as LTE) is to be deployed in mandate Operation in carrier wave.But it is as the evolution of LTE, in some companies of the second half year in 2013 (such as QualCom company) Propose：Suggestion research LTE is deployed in the problem in unauthorized carrier wave.But it is off currently still not accepted by LTE And project verification.
The project verification reason that Qualcomm is given is mainly：With the rapid growth of data service, in the near future, authorize Frequency spectrum can not will bear lower so huge data volume again.So suggestion considers to dispose LTE in an unlicensed spectrum, pass through Unlicensed spectrum come to share authorize carrier wave in data traffic.
In addition, for unlicensed spectrum, being also to there are a lot of advantages.For example, unlicensed spectrum has following feature And advantage：
1. free/low expense (not needing to buy non-frequency spectrum, frequency spectrum resource is zero cost).
2. requirements for sale is low, low cost (personal, enterprise can participate in disposing, and the equipment of equipment vendor can be arbitrarily).
3. shared resource (when multiple different systems are all runed wherein or same system different operators operation wherein when, Spectrum efficiency can be improved in the way of considering some shared resources).
4. wireless access technology many (across different communication standards, cooperation is difficult, and network topology is various).
5. wireless access website many (number of users is big, and cooperation difficulty is big, and centralized management expense is big).
6. many (in terms of data, multi-service is mentioned can run wherein, such as Machine to machine for application (M2M)、Vehicle to vehicle(V2V)).
Above-mentioned basic feature, determining unlicensed spectrum is probably one important evolution tendency of wireless communication system, but It is to there is also problems simultaneously.For example, there will be various wireless systems in unlicensed spectrum, difficult each other In coordination, serious interference.
LTE is deployed in the standardization effort well afoot in unauthorized carrier wave at present, and LTE system is based on base station scheduling Upstream data send, if base station execution first listen say (Listen Before Talk, referred to as LBT) mechanism afterwards after obtain The unauthorized carrier wave right to use, base station subordinate UE also LBT to be before sending upstream data, then how to design The LBT mechanism of row so that up (the Up Link, referred to as UL) of LTE in unauthorized carrier wave, transmitting efficiency is Height, minimum for other websites or systematic influence, effective solution is not also proposed at present.
For in correlation technique, ULL clear channel assessment (CCA) (Clear Channel Assessment, referred to as CCA) and Valid data do not enable to send simultaneously, lead to the problem of the wasting of resources, also do not propose effective solution.
Content of the invention
The invention provides a kind of data is activation, method of reseptance and device, at least to solve ULL CCA in correlation technique Do not enable to send with valid data simultaneously, lead to the problem of the wasting of resources.
According to an aspect of the invention, it is provided a kind of data transmission method for uplink, including：Base station notifies non-to first terminal Authorize the resource location information of the up clear channel assessment (CCA) UL CCA of carrier wave, wherein, the resource-niche of described UL CCA Confidence ceases and carries out CCA detection for described first terminal；Resource is specified by the first data is activation by first in described base station To second terminal, wherein, described first specifies the positional information of resource to be different from the resource location information of described UL CCA； Or, described base station scheduling third terminal specifies resource to send the second data to described base station second, wherein, described the Two specify the positional information of resource to be different from the resource location information of described UL CCA.
Alternatively, described base station notifies the resource location information of the UL CCA of described unauthorized carrier wave to described first terminal Mode include at least one of：The resource location information of described UL CCA is sent to described first eventually by described base station End；The resource location information of described UL CCA is arranged with described first terminal in described base station.
Alternatively, described base station notifies the resource location information of the UL CCA of described unauthorized carrier wave to described first terminal Mode include at least one of：There is the resource-niche confidence of described UL CCA by system broadcast information in described base station Breath；Described base station notifies the resource location information of described UL CCA by private downlink control information to described first terminal； Described base station sends the resource location information of described UL CCA by common downlink control information；Described base station is passed through described The proprietary radio resource control RRC message of first terminal notifies the resource location of described UL CCA to described first terminal Information.
Alternatively, while described base station notifies the resource location information of described UL CCA to described first terminal, described Base station notifies the information of unauthorized carrier wave corresponding with the resource location information of described UL CCA to described first terminal.
Alternatively, described base station notifies the resource location information of the UL CCA of unauthorized carrier wave to include to described first terminal： Described base station or authorizes the resource-niche notifying described UL CCA in carrier wave to described first terminal in unauthorized carrier wave Confidence ceases.
Alternatively, described base station notifies the side of the resource location information of UL CCA of unauthorized carrier wave to described first terminal Formula includes at least one of：Described base station in unauthorized carrier wave or authorizes in carrier wave by Downlink Control Information to described First terminal notifies the resource location information of described UL CCA；Described base station unauthorized carrier wave or authorize carrier wave in Described first terminal notifies initial signal, wherein, carries the resource location information of described UL CCA in described initial signal.
Alternatively, described base station specifies resource to include the first data is activation to second terminal by first：Described base station is not Send described first data in the corresponding resource location of resource location information of described UL CCA；Or, described base station leads to Crossing described first specifies resource to include before described first data is activation to described second terminal：Described base station will be described The corresponding specified data deletion of resource location information of UL CCA, does not send described specified data.
Alternatively, third terminal described in described base station scheduling specifies resource to send described second to described base station described second Include after data：Do not send in the corresponding resource location of resource location information of described UL CCA in described third terminal In the case of data, the determination of described base station does not send data in described resource location, and described base station connects to from this resource location The data received not to enter row decoding；Or, in described third terminal by the corresponding money of resource location information of described UL CCA In the case of the data deletion of source position, described base station determines that described third terminal have sent data in described resource location.
Alternatively, described base station determines that described third terminal includes after described resource location have sent data：Described base Stand from described resource location receiving data, and using the data receiving from described resource location as valid data, to this data Enter row decoding；Or, the data receiving in described resource location is decoded by described base station as neutral value, wherein, Described neutral value is to be not biased towards the value favourable for 1, and is not biased towards the value favourable for 0.
Alternatively, the resource location information of described UL CCA is at least one of：OFDM (Orthogonal Frequency Division Multiplexing, referred to as OFDM) symbolic number and OFDM position；The thing of frequency domain Reason Resource Block Physical Resource Block (Physical Resource Block, referred to as PRB) or subcarrier information.
Alternatively, described UL CCA the corresponding resource location of resource location information in frequency domain configuration for PRB in connect When continuing multiple subcarrier, the subcarrier in the middle of the plurality of subcarrier is used for CCA and detects, removes in the plurality of subcarrier Subcarrier outside the subcarrier of described centre is as protection interval.
Alternatively, the corresponding resource location of resource location information of described UL CCA is entirely unauthorized load in frequency domain configuration In ripple, frequency domain is uniformly distributed.
Alternatively, the resource location of frequency domain is：Arrange parameter includes following one or more：Subcarrier spacing, initiates son Carrier wave, PRB；Wherein, when parameter only comprises PRB, then the frequency domain resource of UL CCA describes for parameter PRB PRB resource；Or make a reservation for some or multiple subcarrier in frequency domain in each PRB and be used for UL CCA；When only sub During carrier wave interval, then acquiescence is applied to full bandwidth scope, and initial subcarrier is made an appointment；When only initial subcarrier, Then acquiescence is applied to full bandwidth scope, and subcarrier spacing is made an appointment.
According to another aspect of the present invention, additionally provide a kind of data receiver method, including：Second terminal determines base station Notify the resource location information of the up clear channel assessment (CCA) UL CCA of unauthorized carrier wave to first terminal；Described second eventually End specifies resource to receive the first data from described base station by first, and wherein, described first specifies the positional information of resource not It is same as the resource location information of described UL CCA.
Alternatively, methods described also includes：In described base station not in the corresponding money of resource location information of described UL CCA In the case that source position sends data, there is not data in described resource location in described second terminal determination, described second eventually Row decoding is not entered to the data receiving from this resource location in end；Or, in described base station by the resource-niche of described UL CCA In the case that confidence ceases the data deletion of corresponding resource location, described second terminal determines that described resource location have sent number According to.
Alternatively, described second terminal determines that described resource location have sent data and includes：Described second terminal is from described money Source position receiving data, and using the data receiving from described resource location as valid data, row decoding is entered to this data； Or, the data receiving in described resource location is decoded by described second terminal as neutral value, wherein, described Neutral value is to be not biased towards the value favourable for 1, and is not biased towards the value favourable for 0.
According to another aspect of the present invention, additionally provide another kind of data transmission method for uplink, including：Third terminal determines base Stand the resource location information of the up clear channel assessment (CCA) UL CCA notifying unauthorized carrier wave to first terminal, the described 3rd Terminal sends data in specified resource to described base station, and wherein, the resource location information of described UL CCA is used for described the One terminal carries out CCA detection；The positional information of described specified resource is different from the resource location information of described UL CCA.
An a kind of invention according to the present invention, there is provided data sending device, is applied to base station, including：Notification module, For notifying the resource location information of the up clear channel assessment (CCA) UL CCA of unauthorized carrier wave to first terminal, wherein, The resource location information of described UL CCA carries out CCA detection for described first terminal；Sending module, is used for passing through First specifies resource by the first data is activation to second terminal, and wherein, described first specifies the positional information of resource to be different from The resource location information of described UL CCA；Or, scheduler module, for dispatch third terminal second specify resource to Described base station sends the second data, and wherein, described second specifies the positional information of resource to be different from the money of described UL CCA Source location information.
Alternatively, described notification module includes：First transmitting element, for by the resource location information of described UL CCA Send to described first terminal；Or, arrange unit, for arranging the resource of described UL CCA with described first terminal Positional information.
Alternatively, described notification module includes：First notification unit, for sending described UL by system broadcast information The resource location information of CCA；Or, the second notification unit, for by private downlink control information to described first The resource location information of UL CCA described in terminal notification；Or, third notice unit, for being controlled by common downlink Information sends the resource location information of described UL CCA；Or, the 4th notification unit, for by described first terminal Proprietary wireless heterogeneous networks (Radio Resource Control, referred to as RRC) message notifies to described first terminal The resource location information of described UL CCA.
Alternatively, described notification module is additionally operable to notify the resource location information of described UL CCA to described first terminal Meanwhile, the information of unauthorized carrier wave corresponding with the resource location information of described UL CCA is notified to described first terminal.
Alternatively, described notification module is additionally operable to notify described UL CCA's to described first terminal in unauthorized carrier wave Resource location information.
Alternatively, described notification module also includes：5th notification unit, in unauthorized carrier wave by descending control Information notifies the resource location information of described UL CCA to described first terminal；6th notification unit, for unauthorized Notify initial signal to described first terminal in carrier wave, wherein, in described initial signal, carry the resource of described UL CCA Positional information.
Alternatively, described sending module is additionally operable to not send out in the corresponding resource location of resource location information of described UL CCA Send described first data；Or, described device also includes：Removing module, for by the resource location of described UL CCA The corresponding specified data deletion of information, does not send described specified data.
Alternatively, described device also includes：First determining module, in described third terminal not in described UL CCA The corresponding resource location of resource location information send data in the case of, determine do not send data in described resource location, Row decoding is not entered to the data receiving from this resource location；Or, the second determining module, for inciting somebody to action in described third terminal In the case of the data deletion of the corresponding resource location of resource location information of described UL CCA, determine described third terminal Have sent data in described resource location.
Alternatively, described second determining module is additionally operable to from described resource location receiving data, and will be from described resource location The data receiving, as valid data, enters row decoding to this data；Or, the data that will receive in described resource location It is decoded as neutral value, wherein, described neutral value is to be not biased towards the value favourable for 1, and is not biased towards for 0 Favourable value.
Alternatively, the resource location information of described UL CCA is at least one of：Orthogonal frequency division multiplex OFDM accords with Count and the position of OFDM；The Physical Resource Block PRB of frequency domain or subcarrier information.
Alternatively, described UL CCA the corresponding resource location of resource location information in frequency domain configuration for PRB in connect When continuing multiple subcarrier, the subcarrier in the middle of the plurality of subcarrier is used for CCA and detects, removes in the plurality of subcarrier Subcarrier outside the subcarrier of described centre is as protection interval.
Alternatively, the corresponding resource location of resource location information of described UL CCA is entirely unauthorized load in frequency domain configuration In ripple, frequency domain is uniformly distributed.
Alternatively, the resource location of frequency domain is：Arrange parameter includes following one or more：Subcarrier spacing, initiates son Carrier wave, PRB；Wherein, when parameter only comprises PRB, then the frequency domain resource of UL CCA describes for parameter PRB PRB resource；Or make a reservation for some or multiple subcarrier in frequency domain in each PRB and be used for UL CCA；When only sub During carrier wave interval, then acquiescence is applied to full bandwidth scope, and initial subcarrier is made an appointment；When only initial subcarrier, Then acquiescence is applied to full bandwidth scope, and subcarrier spacing is made an appointment.
According to another aspect of the present invention, additionally provide a kind of data sink, be applied to second terminal, including： Determining module, for determining that base station notifies the money of the up clear channel assessment (CCA) UL CCA of unauthorized carrier wave to first terminal Source location information；Receiver module, for specifying resource to receive the first data from described base station by first, wherein, described First specifies the positional information of resource to be different from the resource location information of described UL CCA.
Alternatively, described device also includes：Processing module, in described base station not in the resource-niche of described UL CCA In the case that the corresponding resource location of confidence breath sends data, determine and in described resource location, data does not occur, to from this money The data that source position receives not to enter row decoding；Or, in described base station, the resource location information of described UL CCA is corresponded to The data deletion of resource location in the case of, determine that described resource location have sent data.
Alternatively, described processing module is additionally operable to from described resource location receiving data, and will receive from described resource location Data as valid data, row decoding is entered to this data；Or, using the data receiving in described resource location as Neutral value is decoded, and wherein, described neutral value is to be not biased towards the value favourable for 1, and is not biased towards favourable for 0 Value.
According to a further aspect of the invention, additionally provide another kind of data sending device, be applied to third terminal, including： Determining module, notifies the resource-niche of the up clear channel assessment (CCA) UL CCA of unauthorized carrier wave for base station to first terminal Confidence ceases；Sending module, for sending data, wherein, the resource of described UL CCA in specified resource to described base station Positional information carries out CCA detection for described first terminal；The positional information of described specified resource is different from described UL The resource location information of CCA.
By the present invention, notify the up clear channel assessment (CCA) UL CCA's of unauthorized carrier wave to first terminal using base station Resource location information, wherein, the resource location information of this UL CCA carries out CCA detection for first terminal；Base station Specify resource by the first data is activation to second terminal by first, wherein, first specifies the positional information of resource to be different from The resource location information of UL CCA；Or, base station scheduling third terminal specifies resource to send the second number to base station second According to wherein, second specifies the positional information of resource to be different from the resource location information of UL CCA.Solve correlation technique In, ULL CCA and valid data do not enable to send simultaneously, lead to the problem of the wasting of resources it is achieved that LAA system Send while middle UL CCA and valid data, thus decreasing the wasting of resources.
Brief description
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, the present invention Schematic description and description be used for explaining the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of data transmission method for uplink according to embodiments of the present invention；
Fig. 2 is the structured flowchart of data sending device according to embodiments of the present invention；
Fig. 3 is the structured flowchart () of data sending device according to embodiments of the present invention；
Fig. 4 is the structured flowchart (two) of data sending device according to embodiments of the present invention；
Fig. 5 is the structured flowchart (three) of data sending device according to embodiments of the present invention；
Fig. 6 is the structured flowchart (four) of data sending device according to embodiments of the present invention；
Fig. 7 is the flow chart () of data transmission method for uplink according to embodiments of the present invention；
Fig. 8 is the structured flowchart (five) of data sending device according to embodiments of the present invention；
Fig. 9 is the flow chart (two) of data transmission method for uplink according to embodiments of the present invention；
Figure 10 is the structured flowchart (six) of data sending device according to embodiments of the present invention；
Figure 11 is LAA UL CCA time-domain position schematic diagram according to embodiments of the present invention；
Figure 12 is LAA UL CCA frequency domain position schematic diagram according to embodiments of the present invention；
Figure 13 is LAA UL CCA frequency domain position schematic diagram () according to embodiments of the present invention.
Specific embodiment
To describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that in the feelings do not conflicted Under condition, the embodiment in the application and the feature in embodiment can be mutually combined.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, " second " Etc. being for distinguishing similar object, without for describing specific order or precedence.
Provide a kind of data transmission method for uplink in the present embodiment, Fig. 1 is data transmission method for uplink according to embodiments of the present invention Flow chart, as shown in figure 1, this flow process comprises the steps：
Step S102, base station notifies the resource of the up clear channel assessment (CCA) UL CCA of unauthorized carrier wave to first terminal Positional information, wherein, the resource location information of this UL CCA carries out CCA detection for first terminal；
Step S104, base station specifies resource by the first data is activation to second terminal by first, and wherein, first specifies The positional information of resource is different from the resource location information of this UL CCA；Or,
Step S106, base station scheduling third terminal specifies resource to send the second data, wherein, second to base station second The positional information of specified resource is different from the resource location information of this UL CCA.
By above-mentioned steps, notify the up clear channel assessment (CCA) UL CCA of unauthorized carrier wave to first terminal using base station Resource location information, base station specifies resource by the first data is activation to second terminal by first, and wherein, first specifies The positional information of resource is different from the resource location information of UL CCA；Or, base station scheduling third terminal is specified second Resource sends the second data to base station, and wherein, second specifies the positional information of resource to be different from the resource location of UL CCA Information.Because base station receives and sends the resource location information all different from UL CCA for the specified resource that adopted of data, Solve in correlation technique, ULL CCA and valid data do not enable to send simultaneously, lead to the problem of the wasting of resources, Achieve and send while UL CCA and valid data in LAA system, thus decreasing the wasting of resources.
In one alternate embodiment, above-mentioned first specify the resource location information of positional information and the UL CCA of resource not Same, refer to both frequency domain resource difference, time-domain resource or identicals；Above-mentioned second specify resource positional information with The resource location information of UL CCA is different, refers to both frequency domain resource difference, time-domain resource or identicals.
It is related to the resource-niche confidence that base station notifies the UL CCA of unauthorized carrier wave to first terminal in above-mentioned steps S102 Breath, it should be noted that above-mentioned advice method can include multiple, is illustrated to this below.Can at one Select in embodiment, this advice method can be that base station sends the resource location information of this UL CCA to first terminal.? In another alternative embodiment, base station and first terminal arrange the resource location information of this UL CCA.
It is related to the resource-niche confidence that base station notifies the UL CCA of unauthorized carrier wave to first terminal in above-mentioned steps S102 Breath, it should be noted that above-mentioned advice method can include multiple, is illustrated to this below.Can at one Select in embodiment, base station sends the resource location information of UL CCA by system broadcast information.In another optional enforcement In example, base station notifies the resource location information of this UL CCA by private downlink control information to first terminal.Another In individual alternative embodiment, base station sends the resource location information of this UL CCA by common downlink control information.Another In individual alternative embodiment, base station is passed through the proprietary radio resource control RRC message of first terminal and is notified to this first terminal The resource location information of this UL CCA.
In one alternate embodiment, while base station notifies the resource location information of this UL CCA to first terminal, base Stand and notify the information of unauthorized carrier wave corresponding with the resource location information of this UL CCA to first terminal.
It is related to the resource location that base station notifies the UL CCA of unauthorized carrier wave to this first terminal in above-mentioned steps S102 Information, in one alternate embodiment, base station notifies this UL to first terminal in unauthorized carrier wave or mandate carrier wave The resource location information of CCA.
It is related to the resource-niche confidence that base station notifies the UL CCA of unauthorized carrier wave to first terminal in above-mentioned steps S102 Breath, it should be noted that above-mentioned advice method can include multiple, is illustrated to this below.Can at one Select in embodiment, base station is notified to first terminal by Downlink Control Information in unauthorized carrier wave or mandate carrier wave should The resource location information of UL CCA.In another alternative embodiment, base station in unauthorized carrier wave or authorizes in carrier wave Notify initial signal to this first terminal, wherein, in this initial signal, carry the resource location information of this UL CCA.
It is related to base station in above-mentioned steps S106 and specify resource by the first data is activation to second terminal by first, one In individual alternative embodiment, base station does not send this first data in the corresponding resource location of the resource location information of UL CCA. In another alternative embodiment, base station specifies resource by this first data is activation to before second terminal by first, base Stand corresponding for the resource location information of UL CCA specified data deletion, do not send this specified data.
It is related to base station scheduling third terminal in above-mentioned steps S106 and send the second number in this second specified resource to this base station According to afterwards, in one alternate embodiment, in third terminal not in the corresponding resource of resource location information of this UL CCA In the case that position sends data, base station determination does not send data in this resource location, and base station receives to from this resource location Data do not enter row decoding.In another alternative embodiment, in third terminal by the resource location information of this UL CCA In the case of the data deletion of corresponding resource location, base station determines that third terminal have sent data in this resource location.
Base station determines third terminal after this resource location have sent data, and in one alternate embodiment, base station is from this Resource location receiving data, and using the data receiving from this resource location as valid data, row decoding is entered to this data； Or, the data receiving in this resource location is decoded by base station as neutral value, and wherein, this neutral value is not inclined To the value favourable for 1, and it is not biased towards the value favourable for 0.For example, in decoding, neutral value does not provide channel Any Soft Inform ation, that is, this value provide the corresponding actual bit of Soft Inform ation be not biased towards also being not biased towards 0 in 1.
In one alternate embodiment, the resource location information of above-mentioned UL CCA is at least one of：Orthogonal frequency division multiplexing Position with OFDM symbol number and OFDM；The Physical Resource Block PRB of frequency domain or subcarrier information.
In one alternate embodiment, the corresponding resource location of resource location information in UL CCA in frequency domain configuration is In PRB continuously multiple subcarrier when, the subcarrier in the middle of the plurality of subcarrier is used for CCA and detects, the plurality of subcarrier In subcarrier in addition to the subcarrier of this centre as protection interval.
In one alternate embodiment, the corresponding resource location of the resource location information of UL CCA is whole in frequency domain configuration In unauthorized carrier wave, frequency domain is uniformly distributed.
In one alternate embodiment, the resource location of frequency domain is：Arrange parameter includes following one or more：Subcarrier Interval, initial subcarrier, PRB；Wherein, when parameter only comprises PRB, then the frequency domain resource of UL CCA is ginseng The PRB resource of number PRB description；Or make a reservation for some or multiple subcarrier in frequency domain in each PRB and be used for UL CCA； When only subcarrier spacing, then acquiescence is applied to full bandwidth scope, and initial subcarrier is made an appointment；When only initial During subcarrier, then acquiescence is applied to full bandwidth scope, and subcarrier spacing is made an appointment.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-described embodiment Method can realize by the mode of software plus necessary general hardware platform naturally it is also possible to pass through hardware, but a lot In the case of the former is more preferably embodiment.Based on such understanding, technical scheme is substantially in other words to existing Have what technology contributed partly can embody in the form of software product, this computer software product is stored in one In storage medium (as ROM/RAM, magnetic disc, CD), including some instructions with so that a station terminal equipment (can To be mobile phone, computer, server, or the network equipment etc.) method described in execution each embodiment of the present invention.
Additionally provide a kind of data sending device in the present embodiment, this device is used for realizing above-described embodiment and is preferable to carry out Mode, had carried out repeating no more of explanation.As used below, predetermined function can be realized in term " module " Software and/or hardware combination.Although the device described by following examples preferably to be realized with software, firmly Part, or the realization of the combination of software and hardware is also may and to be contemplated.
Fig. 2 is the structured flowchart of data sending device according to embodiments of the present invention, is applied to base station, as shown in Fig. 2 Including：Notification module 22, for notifying the up clear channel assessment (CCA) UL CCA of unauthorized carrier wave to first terminal Resource location information, wherein, the resource location information of this UL CCA carries out CCA detection for this first terminal；Send out Send module 24, for specifying resource by the first data is activation to second terminal by first, wherein, first specifies resource Positional information is different from the resource location information of this UL CCA；Or, scheduler module 26, for dispatching third terminal Resource is specified to send the second data to base station second, wherein, the positional information of this second specified resource is different from this UL The resource location information of CCA.
Fig. 3 is the structured flowchart () of data sending device according to embodiments of the present invention, as shown in figure 3, notifying mould Block 22 includes：First transmitting element 222, for sending the resource location information of this UL CCA to first terminal； Or, arrange unit 224, for arranging the resource location information of this UL CCA with first terminal.
Fig. 4 is the structured flowchart (two) of data sending device according to embodiments of the present invention, as shown in figure 4, notifying mould Block 22 includes：First notification unit 226, for sending the resource-niche confidence of this UL CCA by system broadcast information Breath；Or, the second notification unit 228, for notifying this UL CCA by private downlink control information to first terminal Resource location information；Or, third notice unit 230, for sending this UL CCA by common downlink control information Resource location information；Or, the 4th notification unit 232, for the radio resource control RRC proprietary by first terminal Message notifies the resource location information of this UL CCA to this first terminal.
Alternatively, while notification module 22 is additionally operable to the resource location information notifying this UL CCA to this first terminal, Notify the information of unauthorized carrier wave corresponding with the resource location information of this UL CCA to this first terminal.
Alternatively, notification module 22 is additionally operable to notify the resource of this UL CCA in unauthorized carrier wave to this first terminal Positional information.
Fig. 5 is the structured flowchart (three) of data sending device according to embodiments of the present invention, as shown in figure 5, notifying mould Block 22 also includes：5th notification unit 234, leads to first terminal for passing through Downlink Control Information in unauthorized carrier wave Know the resource location information of this UL CCA；Or, the 6th notification unit 236, in unauthorized carrier wave to first Terminal notification initial signal, wherein, carries the resource location information of this UL CCA in this initial signal.
Alternatively, sending module be additionally operable to not this UL CCA the corresponding resource location of resource location information send this One data；Or, this device also includes：Removing module, for by corresponding for the resource location information of this UL CCA finger Determine data deletion, do not send this specified data.
Fig. 6 is the structured flowchart (four) of data sending device according to embodiments of the present invention, as shown in figure 5, this device Also include：First determining module 62, for not corresponding in the resource location information of this UL CCA in this third terminal In the case that resource location sends data, determine and do not send data in this resource location, to the number receiving from this resource location According to not entering row decoding；Or, the second determining module 64, in this third terminal by the resource location of this UL CCA In the case of the data deletion of the corresponding resource location of information, determine that this third terminal have sent data in this resource location.
Alternatively, the second determining module 64 is additionally operable to from this resource location receiving data, and will receive from this resource location Data as valid data, row decoding is entered to this data；Or, using the data that this resource location receives as in Property value is decoded this, and wherein, this neutral value is to be not biased towards the value favourable for 1, and is not biased towards favourable for 0 Value.
Alternatively, the resource location information of UL CCA is at least one of：Orthogonal frequency division multiplex OFDM symbolic number with And the position of OFDM；The Physical Resource Block PRB of frequency domain or subcarrier information.
Alternatively, UL CCA the corresponding resource location of resource location information in frequency domain configuration for PRB in continuously many During individual subcarrier, the subcarrier in the middle of the plurality of subcarrier is used for CCA and detects, removes this centre in the plurality of subcarrier Subcarrier outside subcarrier is as protection interval.
Alternatively, the corresponding resource location of the resource location information of UL CCA is entirely in unauthorized carrier wave in frequency domain configuration Frequency domain is uniformly distributed.
Alternatively, the resource location of frequency domain is：Arrange parameter includes following one or more：Subcarrier spacing, initiates son Carrier wave, PRB；Wherein, when parameter only comprises PRB, then the frequency domain resource of UL CCA describes for parameter PRB PRB resource；Or make a reservation for some or multiple subcarrier in frequency domain in each PRB and be used for UL CCA；When only sub During carrier wave interval, then acquiescence is applied to full bandwidth scope, and initial subcarrier is made an appointment；When only initial subcarrier, Then acquiescence is applied to full bandwidth scope, and subcarrier spacing is made an appointment.
It should be noted that above-mentioned modules can be by software or hardware to realize, for the latter, Ke Yitong Cross in the following manner to realize, but not limited to this：Above-mentioned module is respectively positioned in same processor；Or, above-mentioned module position respectively In different processors.
Provide a kind of data receiver method in the present embodiment, Fig. 7 is data transmission method for uplink according to embodiments of the present invention Flow chart (), as shown in fig. 7, this flow process comprises the steps：
Step S702, second terminal determines that base station notifies the up clear channel assessment (CCA) UL of unauthorized carrier wave to first terminal The resource location information of CCA；
Step S704, second terminal specifies resource to receive the first data from base station by first, and wherein, first specifies money The positional information in source is different from the resource location information of this UL CCA.
By above-mentioned steps, notify the up clear channel assessment (CCA) UL CCA of unauthorized carrier wave to first terminal using base station Resource location information, second terminal specifies resource to receive the first data that base station sends first, wherein it is intended that resource Positional information be different from UL CCA resource location information.The specified resource being adopted by base station receiving data is all not It is same as the resource location information of UL CCA, solves in correlation technique, ULL CCA and valid data do not enable together When send, lead to the problem of the wasting of resources it is achieved that UL CCA and sending while valid data in LAA system, Thus decreasing the wasting of resources.In one alternate embodiment, in base station not in the resource location information pair of this UL CCA In the case that the resource location answered sends data, there is not data, second terminal pair in this resource location in second terminal determination The data receiving from this resource location does not enter row decoding；Or, in base station, the resource location information of this UL CCA is corresponded to The data deletion of resource location in the case of, second terminal determines that this resource location have sent data.
In one alternate embodiment, second terminal is from this resource location receiving data, and will receive from this resource location Data, as valid data, enters row decoding to this data；Or, the data that second terminal will receive in this resource location It is decoded as neutral value, wherein, this neutral value is to be not biased towards the value favourable for 1, and be not biased towards having for 0 The value of profit.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-described embodiment Method can realize by the mode of software plus necessary general hardware platform naturally it is also possible to pass through hardware, but a lot In the case of the former is more preferably embodiment.Based on such understanding, technical scheme is substantially in other words to existing Have what technology contributed partly can embody in the form of software product, this computer software product is stored in one In storage medium (as ROM/RAM, magnetic disc, CD), including some instructions with so that a station terminal equipment (can To be mobile phone, computer, server, or the network equipment etc.) method described in execution each embodiment of the present invention.
Additionally provide another kind of data sink in the present embodiment, this device is used for realizing above-described embodiment and preferably real Apply mode, carry out repeating no more of explanation.As used below, predetermined work(can be realized in term " module " The software of energy and/or the combination of hardware.Although the device described by following examples preferably to be realized with software, Hardware, or the realization of the combination of software and hardware is also may and to be contemplated.
Fig. 8 is the structured flowchart (five) of data sending device according to embodiments of the present invention, is applied to second terminal, such as Shown in Fig. 8, this device includes：Determining module 82, for determining that base station notifies the up of unauthorized carrier wave to first terminal The resource location information of clear channel assessment (CCA) UL CCA；Receiver module 84, for specifying resource from this base by first Stand and receive the first data, wherein, the positional information of this first specified resource is different from the resource location information of this UL CCA.
Provide another kind of data transmission method for uplink in the present embodiment, Fig. 9 is data sender according to embodiments of the present invention The flow chart (two) of method, as shown in figure 9, this flow process comprises the steps：
Step S902, third terminal determination notifies the up clear channel assessment (CCA) of unauthorized carrier wave in base station to first terminal The resource location information of UL CCA；
Step S904, third terminal sends data, wherein, the resource location of this UL CCA in specified resource to base station Information carries out CCA detection for first terminal；The positional information of specified resource is different from the resource location of this UL CCA Information.
By above-mentioned steps, notify the up clear channel assessment (CCA) UL CCA of unauthorized carrier wave to first terminal using base station Resource location information, third terminal specified resource to base station send data, wherein it is intended that the positional information of resource not It is same as the resource location information of UL CCA.The specified resource being adopted by base station receiving data is all different from UL CCA Resource location information, solve in correlation technique, ULL CCA and valid data do not enable to send simultaneously, lead to The problem of the wasting of resources is it is achieved that UL CCA and sending, thus decreasing money while valid data in LAA system Source wastes.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-described embodiment Method can realize by the mode of software plus necessary general hardware platform naturally it is also possible to pass through hardware, but a lot In the case of the former is more preferably embodiment.Based on such understanding, technical scheme is substantially in other words to existing Have what technology contributed partly can embody in the form of software product, this computer software product is stored in one In storage medium (as ROM/RAM, magnetic disc, CD), including some instructions with so that a station terminal equipment (can To be mobile phone, computer, server, or the network equipment etc.) method described in execution each embodiment of the present invention.
Additionally provide another kind of data sending device in the present embodiment, this device is used for realizing above-described embodiment and preferably real Apply mode, carry out repeating no more of explanation.As used below, predetermined work(can be realized in term " module " The software of energy and/or the combination of hardware.Although the device described by following examples preferably to be realized with software, Hardware, or the realization of the combination of software and hardware is also may and to be contemplated.
Figure 10 is the structured flowchart (six) of data sending device according to embodiments of the present invention, is applied to third terminal, such as Shown in Figure 10, including：Determining module 102, for determining that base station notifies the up free time of unauthorized carrier wave to first terminal In the case of the resource location information of channel estimating UL CCA；Sending module 104, in specified resource to this base station Send data, wherein, the resource location information of this UL CCA carries out CCA detection for this first terminal；This is specified The positional information of resource is different from the resource location information of this UL CCA.
It should be noted that above-mentioned modules can be by software or hardware to realize, for the latter, Ke Yitong Cross in the following manner to realize, but not limited to this：Above-mentioned module is respectively positioned in same processor；Or, above-mentioned module position respectively In multiple processors.
Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can To be arranged to store the program code for executing following steps：
S1, base station notifies the resource location information of the up clear channel assessment (CCA) UL CCA of unauthorized carrier wave to first terminal, Wherein, the resource location information of this UL CCA carries out CCA detection for first terminal；
S2, base station specifies resource by the first data is activation to second terminal by first, and wherein, first specifies the position of resource Confidence breath is different from the resource location information of this UL CCA；Or,
S3, base station scheduling third terminal specifies resource to send the second data to base station second, and wherein, second specifies resource Positional information be different from this UL CCA resource location information.
Alternatively, storage medium is also configured to store the program code for executing following steps：
S4, second terminal determines that base station notifies the up clear channel assessment (CCA) UL CCA's of unauthorized carrier wave to first terminal Resource location information；
S5, second terminal specifies resource to receive the first data from base station by first, and wherein, first specifies the position of resource Information is different from the resource location information of this UL CCA.
Alternatively, storage medium is also configured to store the program code for executing following steps：
S6, third terminal determination notifies the up clear channel assessment (CCA) UL CCA of unauthorized carrier wave in base station to first terminal Resource location information；
S7, third terminal sends data in specified resource to base station, and wherein, the resource location information of this UL CCA is used for First terminal carries out CCA detection；The positional information of specified resource is different from the resource location information of this UL CCA.
Alternatively, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), portable hard drive, Magnetic disc or CD etc. are various can be with the medium of store program codes.
Alternatively, in the present embodiment, processor according to the program code of storage in storage medium execute above-mentioned S1, S2 and S3.
Alternatively, in the present embodiment, processor according to the program code of storage in storage medium execute above-mentioned S4 and S5.
Alternatively, in the present embodiment, processor according to the program code of storage in storage medium execute above-mentioned S6 and S7.
Alternatively, the specific example in the present embodiment may be referred to showing described in above-described embodiment and optional embodiment Example, the present embodiment will not be described here.
In the standardization of existing LAA discusses, propose in correlation technique UL use unauthorized carrier wave send data it Before, LBT to be executed, and advise that LBT position is placed on last of the previous subframe of the subframe of data to be sent In individual OFDM symbol.When present LBT mechanism execution CCA detects, it is all based on the full bandwidth of unauthorized carrier wave Carry out, then if using in prior art, then just in last described OFDM symbol of meaning, base Stand to send downlink data or UE1 can not be dispatched and send upstream data, because there being UE2 to need at this last Execution CCA detection in OFDM symbol.If base station sends downlink data or scheduling UE1 sends upstream data, then The CCA of UE2 will fail, and leads to UE2 can not send data in data to be sent.Obviously for UE2 execution LBT, base station needs to sacrifice the resource of an OFDM symbol.
The purpose introducing LBT mechanism is that website before transmitting data, needs first to detect in unauthorized carrier wave there is other Just in transmission data, when not having other websites just in transmission data, this website could use unauthorized carrier wave to website, from And avoid and impact is brought for the just website in transmission data.
In the UL system of LAA, above-mentioned purpose should be realized, make the data transmission efficiency of unauthorized carrier wave again Lifting, can adopt manner below.
Website (referring to using unauthorized carrier equipment when not specified in literary composition, can be herein base station) is UE configuration Or arrange to execute the resource of CCA with UE, UE carries out CCA detection in described resource.Described resource can be The subcarrier of frequency domain, PRB etc., can be the symbol of an OFDM symbol duration, multiple OFDM symbol in time domain Duration.
For example, the resource that in LTE system, base station configuration UE executes CCA is the previous height of the subframe of data to be transmitted Last OFDM symbol of frame, frequency domain resource is some subcarriers agreement or configuration.UE receives or according to about Fixed, carry out CCA detection in the subcarrier in the above-mentioned agreement or OFDM symbol of configuration.When testing result is Channel busy, then UE can not use unauthorized carrier wave, testing result is that channel is not busy, then UE will be in next sub-frame transmission Data.On given fractional bandwidth during CCA detection, the energy of detection provides UE in the CCA detection of corresponding distribution Carry out average in source.
Base station side, if a upper subframe (being designated as subframe A for convenience) of aforesaid UE subframe waiting for transmission For descending sub frame.If agreement CCA resource be subcarrier (or PRB) in frequency domain, time domain be subframe A last Individual OFDM symbol.When base station scheduling UE carries out data transmission in subframe A, when bag in the PRB that UE is allocated During subcarrier (or PRB) containing above-mentioned detection, base station is not in this subcarrier (or last OFDM symbol of PRB In number) carry out data mapping.
Receiving terminal, receives control signaling and obtains the resource information that base station is that oneself sends data；Receive or determine according to agreement The resource information of CCA, when the resource of data comprises the resource of CCA, does not deposit in the resource of receiving terminal confirmation CCA In data to be received.Subcarrier, PRB two ways specifically can be divided into, all adopt to receive in manner just described and conciliate Analysis data, does not decode or does not receive the data in the resource of CCA.
Base station side, if a upper subframe (being designated as subframe A for convenience) of aforesaid UE subframe waiting for transmission For sub-frame of uplink.When base station scheduling UE sends data in subframe A, the scheduled UE no longer resource of UL CCA Middle transmission data.Base station is also considered as in corresponding UL CCA resource not having data to need to receive.
Base station to send, using broadcast signaling or special RRC message, the resource information that base station configures for UL CCA.Wherein, Resource information includes following one or more：OFDM symbol number and position, the PRB of frequency domain or subcarrier information.Excellent Choosing, CCA detection resource carries out uniformly discrete as far as possible in frequency domain.In order to reduce signaling consumption, LAA system The detection resource of CCA can be arranged by standardized mode, such UL CCA detects that the signaling of resource will be no longer logical Cross signaling to send.
The resource information that UE can also be notified to configure with regard to UL CCA using the new DCI of existing DCI or design, Including the DCI two ways special using public DCI or UE.
Base station can also adopt the sequence of initial signal, frequency domain position pattern to imply the frequency domain resource letter notifying UL CCA Breath, time-domain information is by the way of agreement.For example arranging multiple sequences is initial signal, each sequence agreement corresponding The frequency domain resource information of individual UL CCA, base station sends the frequency domain resource of the sequence UL CCA in secret of initial signal, UE It is possible to obtain the frequency domain resource of UL CCA after this sequence is detected.For example, initial signal is in the position of frequency domain, with The frequency domain resource position of the UL CCA of this unauthorized carrier wave is identical, or the frequency domain position of initial signal is more than UL CCA Frequency domain resource position.
The configuration signal of the detection resource of above-mentioned UL CCA it is also possible to interact between different base station, for example, uses X2 mouth or configured by maintenance platform, so, the website of neighbouring same operator can also know corresponding UL CCA detects pattern, thus can also support to be detected as supporting frequency reuse or multiplexing.
Specific scheme for the UL CCA resource how describing frequency domain is：
Mode 1, introducing arrange parameter includes following one or more：Subcarrier spacing, initial subcarrier, PRB.
PRB can describe the PRB that UL CCA is located, or the PRB that description UL CCA initiates as optional parameters And/or the PRB terminating.For example when all PRB arranging unauthorized carrier wave have the resource of UL CCA, website Just do not use PRB parameter.
Subcarrier spacing and initial subcarrier, describe the subcarrier for UL CCA.For example initial subcarrier is 5, about Determine from the beginning of a certain PRB, or low high frequency range starts to calculate from unauthorized carrier wave.Subcarrier spacing, describes UL CCA Subcarrier interval sub-carrier number, for example, 12.Citing as escribed above, agreement is opened from unauthorized carrier wave medium and low frequency section Begin to calculate, then the subcarrier of corresponding UL CCA is：Subcarrier number is assumed to start from 0 beginning from low-frequency range. Then result is：Subcarrier number is 5,17,29,41 etc. subcarrier.
Such as the example above, is the beginning UL CCA from a certain PRB agreement, maximum PRB in carrier wave.Example As the numbering using PRB.For example, 10.Remaining parameter, hypothesis are identical with the example above.So then result is：Son Carrier index (be now to start from specified PRB, and be initiated with 0) is：5th, 17,29,41 etc., but be Start calculating from first PRB.
Mode 2, introduces arrange parameter：PRB.PRB is the place PRB of description UL CCA.
For example provide one group of PRB, can be to be described using existing DCI mode, it would however also be possible to employ other modes describe one Group PRB.Then the subcarrier arranging fixed position in given PRB is used for UL CCA.For example agreement PRB in from To high frequency segment number, such as subcarrier 5, or subcarrier 5,6,7 is fixed for UL CCA to low-frequency range.
So after one group of PRB information of site configuration, after receiving terminal receives this information, further according to agreement it can be deduced that In corresponding PRB, those subcarriers are for UL CCA detection.
Figure 11 and Figure 12 illustrates UL CCA resource in the position of frequency domain, and in Figure 12, a PRB has a son and carries Ripple is used for UL CCA.In Figure 13, a PRB has multiple continuous subcarriers for UL CCA, now multiple continuous In subcarrier, during UL CCA detection, can only detect middle subcarrier, its remaining sub-carriers on two sides are used as UL CCA protection band.Mode in Figure 13 can be implemented in part PRB, so can reduce the wasting of resources.
Illustrate below by specific embodiment.
Embodiment 1
Hypothesis base station notifies the UE1 of pending UL CCA by special RRC message or by the special DCI of UE, Resource information with regard to UL CCA configuration.After UE1 receives this information, determine the resource of execution UL CCA detection.
Assume that base station configures the subcarrier that UL CCA resource is in frequency-domain sparse, time domain is last symbol of subframe A Number.Assume that described subcarrier is specially fixed position one subcarrier in each PRB (or 12 subcarriers) and is used for UL CCA.Base station sends downlink data last OFDM symbol in subframe A of other UE such as UE2, UE3, But by data in the sub-carrier resources of UL CCA carry out punching abandon (be exactly plan send data directly abandon, Data is not sent in the corresponding resource of this data), carry out data is activation.
Other UE such as UE2 and UE3 according to existing mode receiving data, and are decoded, now in subframe A The UE such as UE2, UE3 are simultaneously unaware of the resource of UL CCA, and these UE pass through the gain of decoding for the data receiving Recovered.Now UE2, UE3 etc. suppose that in the actual resource of UL CCA, base station have sent the data of oneself. The resource ratio that this mode is applied to UL CCA is sparse, and data just can be recovered by decoded gain in such UE side.
For example, UE regards, in decoding, the data that UL CCA resource location receives as neutral value, such as this resource location Reception value be both not biased towards favourable for 1, be also not biased towards in favourable for 0.
UE1 according to base station scheduling in last OFDM symbol of subframe A, in corresponding UL CCA resource Carry out CCA detection, when testing result is for channel idle, UE1 carries out data is activation, when testing result is channel busy When, UE1 can not carry out data is activation, now exist near explanation UE1 and be currently in use unauthorized website.
Embodiment 2
Assume the resource location information that base station is passed through broadcast message or sent UL CCA by public DCI information.UE1 After receiving this information, determine the resource of execution UL CCA detection.
Assume that base station configures the subcarrier that UL CCA resource is in frequency-domain sparse, time domain is last symbol of subframe A Number.Assume that described subcarrier is specially fixed position one subcarrier in each PRB (or 12 subcarriers) and is used for UL CCA.Base station sends downlink data last OFDM symbol in subframe A of other UE such as UE2, UE3, But base station does not use UL CCA resource to send data.
Other UE such as UE2 and UE3 in subframe A according to existing mode receiving data, but for UL CCA Think there is no the data of oneself in resource, be then decoded.
UE1 according to base station scheduling in last OFDM symbol of subframe A, in corresponding UL CCA resource Carry out CCA detection, when testing result is for channel idle, UE1 carries out data is activation (in subframe A next one subframe It is transmitted), when testing result is for channel busy, UE1 can not carry out data is activation, now exists near explanation UE1 It is currently in use unauthorized website.
Embodiment 3
Assume the resource location information that base station is passed through broadcast message or sent UL CCA by public DCI information.UE1 After receiving this information, determine the resource of execution UL CCA detection.
Assume that base station configures the subcarrier that UL CCA resource is in frequency-domain sparse, time domain is last symbol of subframe A Number, it is assumed that subframe A is sub-frame of uplink.Assume that described subcarrier is specially each PRB (or 12 subcarriers) One subcarrier in middle fixed position is used for UL CCA.Upstream data (the bag of other UE such as base station scheduling UE2, UE3 Include upstream control signaling, SRS, PUSCH) subframe A last OFDM symbol, but UE2, UE3 When sending data Deng other UE in subframe A, in UL CCA resource, do not send data.
When base station receives data in subframe A for other UE such as UE2, UE3, according to existing mode receiving data, But do not send data for thinking in UL CCA resource, be then decoded.
UE1 according to base station scheduling in last OFDM symbol of subframe A, in corresponding UL CCA resource Carry out CCA detection, when testing result is for channel idle, UE1 carries out data is activation (in subframe A next one subframe It is transmitted), when testing result is for channel busy, UE1 can not carry out data is activation, now exists near explanation UE1 It is currently in use unauthorized website.
Embodiment 4
Based on embodiment 1,2,3, if the frequency domain position that base station can configure UL CCA (always assumes time-domain position Positioned at subframe last symbol), the granularity for example with PRB is configured, and (scheduling of LTE is based on PRB It is possible at utmost continue to use an existing signaling) resource of UL CCA.In above-described embodiment it is also so Manageable.
If UL CCA resource is configured using PRB, then base station can carry out corresponding configuration, example using DCI As arranged to be configured using a certain DCI format.
In sum, solve in correlation technique by the method for the up LBT of the present invention, ULL CCA and significant figure According to not enabling to send simultaneously, lead to the problem of the wasting of resources it is achieved that UL CCA and valid data in LAA system While send, thus decreasing the wasting of resources.
Obviously, those skilled in the art should be understood that each module of the above-mentioned present invention or each step can be with general Realizing, they can concentrate on single computing device computing device, or be distributed in multiple computing devices and formed Network on, alternatively, they can be realized with the executable program code of computing device, it is thus possible to by they Storage to be executed by computing device in the storage device, and in some cases, can be to hold different from order herein The shown or described step of row, or they are fabricated to respectively each integrated circuit modules, or will be many in them Individual module or step are fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware Combine with software.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the technology of this area For personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any Modification, equivalent, improvement etc., should be included within the scope of the present invention.

Claims (34)

1. a kind of data transmission method for uplink is it is characterised in that include：
Base station notifies the resource location information of the up clear channel assessment (CCA) UL CCA of unauthorized carrier wave to first terminal, Wherein, the resource location information of described UL CCA carries out CCA detection for described first terminal；
Described base station specifies resource by the first data is activation to second terminal by first, and wherein, described first specifies The positional information of resource is different from the resource location information of described UL CCA；Or,
Described base station scheduling third terminal specifies resource to send the second data to described base station second, wherein, described Second specifies the positional information of resource to be different from the resource location information of described UL CCA.
2. method according to claim 1 is it is characterised in that described base station notifies described non-award to described first terminal The mode of the resource location information of UL CCA of power carrier wave includes at least one of：
Described base station sends the resource location information of described UL CCA to described first terminal；
The resource location information of described UL CCA is arranged with described first terminal in described base station.
3. method according to claim 1 is it is characterised in that described base station notifies described non-award to described first terminal The mode of the resource location information of UL CCA of power carrier wave includes at least one of：
Described base station sends the resource location information of described UL CCA by system broadcast information；
Described base station notifies the resource location of described UL CCA by private downlink control information to described first terminal Information；
Described base station sends the resource location information of described UL CCA by common downlink control information；
Described base station is led to described first terminal by the proprietary radio resource control RRC message of described first terminal Know the resource location information of described UL CCA.
4. method according to claim 1 is it is characterised in that described base station notifies described UL to described first terminal While the resource location information of CCA, described base station notifies the resource with described UL CCA to described first terminal The information of the corresponding unauthorized carrier wave of positional information.
5. method according to claim 1 is it is characterised in that described base station notifies unauthorized load to described first terminal The resource location information of the UL CCA of ripple includes：
Described base station notifies the resource location information of described UL CCA in unauthorized carrier wave to described first terminal.
6. method according to claim 5 is it is characterised in that described base station notifies unauthorized load to described first terminal The mode of the resource location information of UL CCA of ripple includes at least one of：
Described base station notifies described UL CCA by Downlink Control Information to described first terminal in unauthorized carrier wave Resource location information；
Described base station notifies initial signal, wherein, described initial signal to described first terminal in unauthorized carrier wave In carry the resource location information of described UL CCA.
7. method according to claim 1 is it is characterised in that resource is specified by the first data by first in described base station Send and include to second terminal：Described base station is not in the corresponding resource location of resource location information of described UL CCA Send described first data；Or, resource is specified by described first data is activation extremely by described first in described base station Include before described second terminal：Described base station is by corresponding for the resource location information of described UL CCA specified data Delete, do not send described specified data.
8. method according to claim 1 is it is characterised in that third terminal described in described base station scheduling is described second Specified resource includes after sending described second data to described base station：
Do not send data in described third terminal in the corresponding resource location of resource location information of described UL CCA In the case of, the determination of described base station does not send data in described resource location, and described base station receives to from this resource location Data do not enter row decoding；Or,
In described third terminal by the data deletion of the corresponding resource location of resource location information of described UL CCA In the case of, described base station determines that described third terminal have sent data in described resource location.
9. method according to claim 8 is it is characterised in that described base station determines described third terminal in described resource Position includes after have sent data：
Described base station from described resource location receiving data, and using the data receiving from described resource location as effective Data, enters row decoding to this data；Or, described base station using the data that described resource location receives as in Property value is decoded.
10. method according to any one of claim 1 to 9 is it is characterised in that the resource location of described UL CCA Information is at least one of：
Orthogonal frequency division multiplex OFDM symbolic number and the position of OFDM；
The Physical Resource Block PRB of frequency domain or subcarrier information.
11. methods according to claim 10 are it is characterised in that corresponding in the resource location information of described UL CCA Resource location in frequency domain configuration is for PRB during continuously multiple subcarrier, use by the subcarrier in the middle of the plurality of subcarrier In CCA detection, in the plurality of subcarrier, the subcarrier in addition to the subcarrier of described centre is as protection interval.
12. methods according to claim 10 are it is characterised in that the corresponding money of resource location information of described UL CCA Source position is uniformly distributed for frequency domain in entirely unauthorized carrier wave in frequency domain configuration.
13. methods according to claim 10 are it is characterised in that the resource location of frequency domain is：Arrange parameter includes following One or more：Subcarrier spacing, initial subcarrier, PRB；Wherein, when parameter only comprises PRB, then UL CCA The PRB resource that describes for parameter PRB of frequency domain resource；Or it is sub to make a reservation for some or multiple frequency domain in each PRB Carrier wave is used for UL CCA；When only subcarrier spacing, then acquiescence is applied to full bandwidth scope, and initial subcarrier is pre- First arrange；When only initial subcarrier, then acquiescence is applied to full bandwidth scope, and subcarrier spacing is made an appointment.
A kind of 14. data receiver methods are it is characterised in that include：
Second terminal determines that base station notifies the up clear channel assessment (CCA) UL CCA's of unauthorized carrier wave to first terminal Resource location information；
Described second terminal specifies resource to receive the first data from described base station by first, wherein, described first finger The positional information determining resource is different from the resource location information of described UL CCA.
15. methods according to claim 14 are it is characterised in that methods described also includes：
The situation of data is not sent in described base station in the corresponding resource location of resource location information of described UL CCA Under, described second terminal determination does not send data in described resource location, and described second terminal is to from this resource location The data receiving not to enter row decoding；Or,
In described base station by the situation of the data deletion of the corresponding resource location of resource location information of described UL CCA Under, described second terminal determines that described resource location have sent data.
16. methods according to claim 14 are it is characterised in that described second terminal determines that described resource location sends Data includes：
Described second terminal from described resource location receiving data, and using the data receiving from described resource location as Valid data, enter row decoding to this data；Or, the number that described second terminal will receive in described resource location It is decoded according to as neutral value.
A kind of 17. data transmission method for uplink are it is characterised in that include：
Third terminal determines that base station notifies the up clear channel assessment (CCA) UL CCA's of unauthorized carrier wave to first terminal Resource location information；
Described third terminal sends data, wherein, the resource-niche of described UL CCA in specified resource to described base station Confidence ceases and carries out CCA detection for described first terminal；The positional information of described specified resource is different from described UL The resource location information of CCA.
A kind of 18. data sending devices, are applied to base station it is characterised in that including：
Notification module, for notifying the money of the up clear channel assessment (CCA) UL CCA of unauthorized carrier wave to first terminal Source location information, wherein, the resource location information of described UL CCA carries out CCA detection for described first terminal；
Sending module, for specifying resource by the first data is activation to second terminal by first, wherein, described the One specifies the positional information of resource to be different from the resource location information of described UL CCA；Or,
Scheduler module, specifies resource to send the second data to described base station for dispatching third terminal second, wherein, Described second specifies the positional information of resource to be different from the resource location information of described UL CCA.
19. devices according to claim 18 are it is characterised in that described notification module includes：
First transmitting element, for sending the resource location information of described UL CCA to described first terminal；Or Person,
Agreement unit, for arranging the resource location information of described UL CCA with described first terminal.
20. devices according to claim 18 are it is characterised in that described notification module includes：
, for there is the resource location information of described UL CCA by system broadcast information in the first notification unit；Or Person,
Second notification unit, for notifying described UL CCA by private downlink control information to described first terminal Resource location information；Or,
Third notice unit, for sending the resource location information of described UL CCA by common downlink control information； Or,
4th notification unit, for the radio resource control RRC message proprietary by described first terminal to described The resource location information of UL CCA described in one terminal notification.
21. devices according to claim 18 are it is characterised in that described notification module is additionally operable to described first terminal Notify described UL CCA resource location information while, notify and the money of described UL CCA to described first terminal The information of the corresponding unauthorized carrier wave of source location information.
22. devices according to claim 18 are it is characterised in that described notification module is additionally operable in unauthorized carrier wave Notify the resource location information of described UL CCA to described first terminal.
23. devices according to claim 22 are it is characterised in that described notification module also includes：
5th notification unit, notifies institute for passing through Downlink Control Information in unauthorized carrier wave to described first terminal State the resource location information of UL CCA；Or,
6th notification unit, for notifying initial signal, wherein, institute to described first terminal in unauthorized carrier wave State the resource location information carrying described UL CCA in initial signal.
24. devices according to claim 18 are it is characterised in that described sending module is additionally operable to not in described UL CCA The corresponding resource location of resource location information send described first data；Or, described device also includes：Delete Module, for by corresponding for the resource location information of described UL CCA specified data deletion, not sending described specifying Data.
25. devices according to claim 18 are it is characterised in that described device also includes：
First determining module, for not corresponding in the resource location information of described UL CCA in described third terminal In the case that resource location sends data, determine and do not send data in described resource location, connect to from this resource location The data received not to enter row decoding；Or,
Second determining module, in described third terminal by the corresponding money of resource location information of described UL CCA In the case of the data deletion of source position, determine that described third terminal have sent data in described resource location.
26. devices according to claim 25 are it is characterised in that described second determining module is additionally operable to from described resource Position receiving data, and using the data receiving from described resource location as valid data, row decoding is entered to this data； Or, the data receiving in described resource location is decoded as neutral value.
27. devices according to any one of claim 18 to 26 are it is characterised in that the resource-niche of described UL CCA Confidence ceases at least one of：
Orthogonal frequency division multiplex OFDM symbolic number and the position of OFDM；
The Physical Resource Block PRB of frequency domain or subcarrier information.
28. devices according to claim 27 are it is characterised in that corresponding in the resource location information of described UL CCA Resource location in frequency domain configuration is for PRB during continuously multiple subcarrier, use by the subcarrier in the middle of the plurality of subcarrier In CCA detection, in the plurality of subcarrier, the subcarrier in addition to the subcarrier of described centre is as protection interval.
29. devices according to claim 27 are it is characterised in that the corresponding money of resource location information of described UL CCA Source position is uniformly distributed for frequency domain in entirely unauthorized carrier wave in frequency domain configuration.
30. devices according to claim 27 are it is characterised in that the resource location of frequency domain is：Arrange parameter includes following One or more：Subcarrier spacing, initial subcarrier, PRB；Wherein, when parameter only comprises PRB, then UL CCA The PRB resource that describes for parameter PRB of frequency domain resource；Or it is sub to make a reservation for some or multiple frequency domain in each PRB Carrier wave is used for UL CCA；When only subcarrier spacing, then acquiescence is applied to full bandwidth scope, and initial subcarrier is pre- First arrange；When only initial subcarrier, then acquiescence is applied to full bandwidth scope, and subcarrier spacing is made an appointment.
A kind of 31. data sinks, are applied to second terminal it is characterised in that including：
Determining module, for determining that base station notifies the up clear channel assessment (CCA) UL of unauthorized carrier wave to first terminal The resource location information of CCA；
Receiver module, for specifying resource to receive the first data, wherein, described first from described base station by first The positional information of specified resource is different from the resource location information of described UL CCA.
32. devices according to claim 31 are it is characterised in that described device also includes：
Processing module, in described base station not in the corresponding resource location of resource location information of described UL CCA In the case of sending data, determine and in described resource location, data does not occur, to the data receiving from this resource location Do not enter row decoding；Or, in described base station by the corresponding resource location of resource location information of described UL CCA In the case of data deletion, determine that described resource location have sent data.
33. devices according to claim 32 are it is characterised in that described processing module is additionally operable to from described resource location Receiving data, and using the data receiving from described resource location as valid data, row decoding is entered to this data；Or Person, the data receiving in described resource location is decoded as neutral value.
A kind of 34. data sending devices, are applied to third terminal it is characterised in that including：
Determining module, for determining that base station notifies the up clear channel assessment (CCA) UL of unauthorized carrier wave to first terminal The resource location information of CCA；
Sending module, for sending data, wherein, the resource of described UL CCA in specified resource to described base station Positional information carries out CCA detection for described first terminal；The positional information of described specified resource is different from described The resource location information of UL CCA.
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