CN107231643A - Uplink data transmission method and device based on LAA networks - Google Patents
Uplink data transmission method and device based on LAA networks Download PDFInfo
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- CN107231643A CN107231643A CN201610172740.2A CN201610172740A CN107231643A CN 107231643 A CN107231643 A CN 107231643A CN 201610172740 A CN201610172740 A CN 201610172740A CN 107231643 A CN107231643 A CN 107231643A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention discloses a kind of uplink data transmission method and device based on LAA networks, methods described includes：User equipment (UE) monitors LBT detections before being engaged in the dialogue according at least two time points pre-set to unauthorized channel, the very first time difference of adjacent time point is less than the second time difference of start time point in neighboring upstream data burst at least two time point；When the UE determines that first time point of the unauthorized channel at least two time point is idle, upstream data subframe is sent to base station.The present embodiment to unauthorized channel according at least two time points pre-set by carrying out LBT detections, and the very first time difference of adjacent time point is less than the second time difference of start time point in neighboring upstream data burst at least two time point, when it is determined that the unauthorized channel is idle at any point in time, then upstream data subframe is sent to base station, the time interval for carrying out LBT detections can effectively be shortened relative to prior art, high channel resource use ratio is carried.
Description
Technical field
Connect the present embodiments relate to communications processing field, more particularly to a kind of mandate frequency spectrum auxiliary that is based on
Enter the uplink data transmission method and device of (License Assisted Access, LAA) network.
Background technology
In LAA networks, Listen Before Talk (Listen before Talk, LBT) detection process is a kind of
The clear channel assessment (CCA) (Clear Channel Assessment, CCA) that the network equipment is carried out before using channel
Testing mechanism, judges whether channel is occupied by using energy monitoring.Except regulatory requirement, pass through
LBT completes the Fairshare that carrier detection also helps unlicensed spectrum.Therefore LBT is one and awarded non-
Weigh the key technology that fair polite channel access is completed on frequency spectrum.
In existing LAA uplink strategy, base station passes through up (Uplink UL) grant signals first
Instruction user equipment (User Equipment, UE) carries out uplink preparation, and UE receives UL grant
After signal, the scheduling resource information indicated according to UL grant is subjected to media intervention key-course (Media
Access Control, MAC) protocol Data Unit (Protocol Data Unit, PDU) assembling, complete
Send preparation.It is to ensure that the unauthorized band channels of free time, UE can be used in uplink simultaneously
Detected using LBT detection techniques.If UE receives signal energy intensity and commented less than specified idle channel
Estimate (Clear Channel Assessment, CCA) threshold value, then judge channel idle, refer to according to UL grant
Show transmission upstream data；Otherwise judge channel busy, upstream data will not be sent, until rising for next subframe
Time point beginning is detected again.
But, the time that this channel may be taken under some scenes is very short, when LAA is detected by LBT
It was found that when channel is unavailable, UE will not be in the channel and send any data, until the starting of next subframe
Time point arrives, and without any data transfer within this period of wait, causes a kind of resource wave
Take.
The content of the invention
The present invention provides a kind of uplink data transmission method and device based on LAA networks, to improve channel
Resource utilization.
In a first aspect, the embodiments of the invention provide a kind of uplink data transmission method based on LAA networks,
Including：
UE monitors LBT inspections before being engaged in the dialogue according at least two time points pre-set to unauthorized channel
Survey, the very first time difference of adjacent time point is less than in neighboring upstream data burst at least two time point
Second time difference of start time point；
The UE determines that first time point of the unauthorized channel at least two time point is idle
When, send upstream data subframe to base station.
Second aspect, the embodiment of the present invention additionally provides a kind of transmitting uplink data dress based on LAA networks
Put, including：
LBT detection modules, are configured at UE sides, for according at least two time points for pre-setting to non-
Authorization channel carries out LBT detections, and the very first time difference of adjacent time point is small at least two time point
The second time difference of start time point in neighboring upstream data burst；
Data transmission blocks, are configured at UE sides, for determining the unauthorized channel described at least two
When first time point in time point is idle, upstream data subframe is sent to base station.
At least two time points that the present invention is pre-set by basis carry out LBT detections to unauthorized channel,
And the very first time difference of adjacent time point is less than neighboring upstream data burst at least two time point
Second time difference of middle start time point, when it is determined that the unauthorized channel is idle at any point in time, then
To base station send upstream data subframe, relative to prior art can effectively shorten carry out LBT detections when
Between be spaced, carry high channel resource use ratio.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to implementing
The accompanying drawing used required in example or description of the prior art is briefly described, it should be apparent that, retouch below
Accompanying drawing in stating is some embodiments of the present invention, for those of ordinary skill in the art, is not being paid
On the premise of creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of stream of uplink data transmission method based on LAA networks in the embodiment of the present invention one
Cheng Tu；
During Fig. 2 is a kind of uplink data transmission method based on LAA networks in the embodiment of the present invention one
Time distributes contrast schematic diagram；
Fig. 3 is a kind of stream of uplink data transmission method based on LAA networks in the embodiment of the present invention two
Cheng Tu；
During Fig. 4 is a kind of uplink data transmission method based on LAA networks in the embodiment of the present invention two
The flow chart of part subframe and corresponding MCS grades；
Fig. 5 is a kind of knot of transmitting uplink data device based on LAA networks in the embodiment of the present invention three
Composition.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this
The specific embodiment of place description is used only for explaining the present invention, rather than limitation of the invention.Also need in addition
It is noted that illustrate only part related to the present invention for the ease of description, in accompanying drawing and not all knot
Structure.
Embodiment one
Fig. 1 is a kind of uplink data transmission method based on LAA networks that the embodiment of the present invention one is provided
Flow chart, the present embodiment is applicable to the LBT detection cases of unauthorized channel, and this method can be by this hair
What bright embodiment was provided is performed based on the transmitting uplink data device of LAA networks, and the device can be integrated in
In UE, as shown in figure 1, specifically including：
S101, UE carry out LBT detections according at least two time points pre-set to unauthorized channel,
The very first time difference of adjacent time point, which is less than in neighboring upstream data burst, at least two time point rises
Second time difference at time point beginning.
Wherein, the start time point correspondence scheduling time set in the upstream data subframe.In prior art
In, the start time point in upstream data subframe is set to scheduling time by base station, is sent according to scheduling time
Start time point in upstream data subframe, neighboring upstream data burst difference be the second time difference, one
As be 1ms, that is to say, that LBT detection is carried out every 1ms in the prior art, it is determined that described
During unauthorized channel idle, the transmission of a upstream data subframe is completed, it is determined that the unauthorized channel busy
When commonplace, then LBT detections next time could be carried out by continuing waiting for 1ms.And in the present embodiment, exist in advance
UE sides set the very first time of adjacent time point at least two time points, at least two time point poor
Less than the second time difference of start time point in neighboring upstream data burst, that is to say, that phase in the present embodiment
The very first time difference at adjacent time point was less than for the second time difference.So that above-mentioned second time difference is 1ms as an example, this reality
1ms will be less than by applying the very first time difference of the adjacent time point in example, that is to say, that the present embodiment is less than 1ms
With regard to carrying out a LBT detection, so, in the case where some data just complete data transfer less than 1ms,
The idle condition of channel can be detected, the utilization rate of channel is effectively increased.
In the present embodiment, used LBT detection can for it is following any one：Set time length
LBT detections, the LBT detections of regular length competition window and the LBT detections of variable-length competition window.
S102, the UE determine the very first time of the unauthorized channel at least two time point
When point is idle, upstream data subframe is sent to base station.
Specifically, sequencings of the UE according to the time point of setting, is clicked through in first time first
Row LBT is detected, if it is busy to detect unauthorized channel described in first time point, selection with first
Adjacent second time point at time point proceeds LBT detections, non-described in some time point detecting
When authorization channel is idle, then the time point is now sent into upstream data as first time point to base station
Frame.
For example, so that above-mentioned LBT detection cycles are 1ms as an example, in the present embodiment can be by time point point
1.0,1.25,1.5,1.75 and 2.0 are not set to, i.e., every 0.25 detection once.
The present embodiment to unauthorized channel according at least two time points pre-set by carrying out LBT inspections
Survey, and the very first time difference of adjacent time point is less than neighboring upstream data at least two time point
Second time difference of start time point in frame, when it is determined that the unauthorized channel is idle at any point in time,
Upstream data subframe then is sent to base station, can effectively shorten relative to prior art and carry out LBT detections
Time interval, carries high channel resource use ratio.
On the basis of above-described embodiment, the UE is awarded according at least two time points pre-set to non-
Power channel monitors LBT detections before engaging in the dialogue：
The upstream data subframe is divided at least two part subframes by the UE, by described at least two
Time point is correspondingly arranged as the start time point of each part subframe respectively.
As illustrated in fig. 2, it is assumed that in the prior art, two neighboring upstream data subframe is the first upstream data
Frame and the start time point of the second upstream data subframe are at intervals of 1ms, then can be by first upstream data
Subframe is divided into at least two part subframes, and at least two time points were correspondingly arranged as each part respectively
The start time point of frame.For example, time point can be respectively set to 1.0 in the present embodiment, 1.25,1.5,
1.75, corresponding first upstream data subframe is divided into four part subframes, by the starting of each part subframe
Time point is set gradually as 1.0,1.25,1.5,1.75.
On the basis of above-described embodiment, to ensure the real-time of data transfer and improving antijamming capability,
Methods described further comprises：
Different modulation coding modes are respectively adopted to the upstream data for different time points in the UE
Subframe carries out re-modulation coding；
Accordingly, when the UE determines first of the unauthorized channel at least two time point
Between when putting idle, send upstream data subframe to base station, including：
The UE determines that the unauthorized channel, when the first time point is idle, sends described to base station
Upstream data subframe after the corresponding modulating-coding of first time point.
Specifically, the UE is to set different grades of modulation to compile at each time point according to time order and function order
Code mode, the UE distinguishes corresponding modulation coding mode to the upstream data for different time points
Subframe carries out re-modulation coding.
The UE is each time point to set different grades of modulation coding mode to have according to time order and function order
Body may include：When the UE counts the residue transmission relative to second time difference for each time point
Between；The UE is to set different grades of modulating-coding side at each time point according to the residue transmission time
Formula, so that the upstream data subframe after each time point modulating-coding can within the residue transmission period
End of transmission.Or, the UE is according to time order and function order by first time point corresponding modulating-coding
Mode is set to the modulation coding mode arranged with base station, is the modulation coding mode set at remaining time point
Antijamming capability successively decrease successively.
Wherein, the modulation coding mode used includes following at least one：Amplitude shift keying (Amplitude
Shift Keying, ASK), frequency shift keying (Frequency Shift Keying, FSK), phase-shift keying (PSK)
(Phase Shift Keying, PSK) and quadrature amplitude modulation (Quadrature Amplitude Modulation,
QAM)。
On the basis of above-described embodiment, the UE is awarded according at least two time points pre-set to non-
Power channel carries out LBT detections and further comprised：
The UE according to time order and function sequential selection earliest time point as first time point, described
First time point carries out LBT detections to unauthorized channel；
If the UE determines the unauthorized channel in first free time at time point, by described first
Individual time point, as first time point, triggers the operation that upstream data subframe is sent to base station；
It is first according to the time if the UE determines that the unauthorized channel is busy at first time point
Order selects second time point as first time point from remaining time point afterwards, repeats LBT
Detecting step.
Specifically, in the case where LAA networks and WiFi network coexist, because WiFi data bag is being passed
The channel time taken when defeated is just shorter, generally the 1/4 of LAA networks, then under this scene, with
In LAA networks the scheduling time of upstream data subframe be 1ms, the scheduling time of WiFi data bag be 1/4ms
Exemplified by, the present embodiment is illustrated, is in advance 4 portions as shown in Figure 2 by upstream data sub-frame division
Molecule frame, is then that each part subframe sets start time point, if be respectively set to 1.0,1.25,1.50,
1.75。
The UE proceeds by first time LBT detections at 1.0 moment, if now described unauthorized channel is empty
Spare time, then the upstream data subframe modulating-coding will be modulated using the modulation coding mode arranged with base station
Upstream data subframe after coding is sent to base station, and the base station is to upstream data after the modulating-coding
Frame is demodulated using the method for blind Detecting.
It should be noted that the base station has prestored the institute that UE is directed to different time points and may used
There is modulation coding mode.
If busy in unauthorized channel described in 1.0 moment, the UE waits until that 1.25 moment proceeded by
Secondary LBT detections, if now described unauthorized channel idle, using the stronger tune of antijamming capability
Coded system (for example, QAM16, code check are 0.7) processed, will to the upstream data subframe modulating-coding
Upstream data subframe after modulating-coding is sent to base station, and the base station is to the upper line number after the modulating-coding
It is demodulated according to subframe using the method for blind Detecting.
If busy in unauthorized channel described in 1.25 moment, the UE waits until that 1.50 moment proceeded by
Third time LBT is detected, if now described unauthorized channel idle, using the modulation of strong antijamming capability
Coded system (for example, QAM64, code check are 0.5) will be adjusted to the upstream data subframe modulating-coding
Upstream data subframe after system coding is sent to base station, and the base station is to the upstream data after the modulating-coding
Subframe is demodulated using the method for blind Detecting.
If busy in unauthorized channel described in 1.50 moment, the UE waits until that 1.75 moment proceeded by
4th LBT detection, if now described unauthorized channel idle, due to now channel idle remaining time
Time apart from upstream data subframe scheduling next time is shorter, and the probability for receiving external interference is also just smaller,
The weaker modulation coding mode of antijamming capability (for example, QAM128, code check is 1.2) can now be used
To the upstream data subframe modulating-coding, the upstream data subframe after modulating-coding is sent to base station, institute
Base station is stated to be demodulated the upstream data subframe after the modulating-coding using the method for blind Detecting.
If still busy in unauthorized channel described in 1.75 moment, the UE abandons the upstream data subframe
Transmission, wait base station dispatch the upstream data subframe again.
The various embodiments described above are entered again by according at least two time points pre-set to unauthorized channel
Row LBT detect, and at least two time point adjacent time point the very first time difference be less than it is adjacent
Second time difference of start time point in upstream data subframe, it is determined that the unauthorized channel is in any time
When point is idle, then upstream data subframe is sent to base station, progress can be effectively shortened relative to prior art
The time interval of LBT detections, carries high channel resource use ratio.
Embodiment two
Fig. 3 is a kind of uplink data transmission method based on LAA networks that the embodiment of the present invention two is provided
Flow chart, the present embodiment is coexisted with LAA networks and WiFi network and the present embodiment is carried out specifically for scene
It is bright, as shown in figure 3, specifically including：
Second time of the start time point of S201, UE in neighboring upstream data burst in LAA networks
Upstream data subframe is divided into 4 part subframes by the scheduling time of difference and WiFi network packet.
Specifically, under the scene that LAA networks and WiFi network coexist, due to WiFi network packet
The continuous transmission time be typically smaller than 1ms, generally 1/4ms, therefore WiFi network transmission takes LAA
The time of network uplink transmission is very short.In the prior art, when LAA networks find to believe by LBT detections
When road is unavailable, UE will not be in base station and be originally used for sending any data on the reserved ascending resources of UE,
This will cause a kind of wasting of resources to uplink.Upstream data subframe is further divided into the present embodiment
4 part subframes, are that each part subframe is respectively provided with corresponding start time point, the base station is in 4 portions
Framing all allows the transmission for carrying out upstream data subframe when originating.
S202, UE are that each part subframe sets start time point respectively, and are correspondingly arranged different grades of
Modulation coding mode.
S203, UE are that corresponding modulation coding mode is respectively adopted to the upstream data in each part subframe
Subframe carries out re-modulation coding, and preserves the upstream data subframe after modulating-coding.
S204, UE are proceeded by according to the time order and function order of start time point from first part subframe
LBT is detected, when detecting that the unauthorized channel is in idle, corresponding upper line number is sent to base station
According to subframe.
Specifically, before every part sub-frame transmission, up LBT detections can be carried out once, if it is successful,
Transmission can then be started in this second part subframe, otherwise LBT is carried out again when next second part subframe starts
Detection.In UE sides, each part sub-frame transmission can the different modulating-coding strategy (Modulation of corresponding selection
And Coding Scheme, MCS) grade, and the gradational modulation coding mode of institute is stored in base station side,
To ensure that base station end can be demodulated correctly.For example, as shown in figure 4, first part subframe is if start to pass
It is defeated, then select MCS1 to be transmitted, due to the starting subframe that first part subframe is upstream data subframe,
Now if channel idle, there is time enough to be transmitted before the arrival of next upstream data subframe, because
Modulation coding modes of this MCS1 preferably to be made an appointment with base station；If from the second part subframe
It can start to send, then select MCS2 to be transmitted, because now time-out has gone 1/4, if according to
The modulation coding mode made an appointment so upstream data subframe the remaining time may not end of transmission,
The MCS2 now selected is required to guarantee and re-modulates the upstream data subframe after coding remaining 3/4
Time being capable of end of transmission；Similarly, if since the 3rd part subframe could send, select MCS3
It is transmitted, because now time-out has gone 2/4, the MCS3 now selected is required to ensure again
Upstream data subframe after modulating-coding being capable of end of transmission in remaining 2/4 time；If from the 4th portion
Molecule frame could start to send, then select MCS4 to be transmitted, because now time-out has gone 3/4,
The MCS3 now selected is required to guarantee and re-modulates the upstream data subframe after coding remaining 3/4
Time being capable of end of transmission.
Embodiment three
Fig. 5 show a kind of transmitting uplink data dress based on LAA networks of the offer of the embodiment of the present invention three
The structural representation put, the device can be realized by the way of software or hardware, can device can be integrated in UE
In, as shown in figure 5, the concrete structure of the device is as follows：LBT detection modules 31 and data transmission blocks
32；
The LBT detection modules 31 are configured at UE sides, for according at least two times pre-set
Point to unauthorized channel carry out LBT detections, at least two time point adjacent time point first when
Between difference be less than neighboring upstream data burst in start time point the second time difference；
The data transmission blocks 32 are configured at UE sides, for determine the unauthorized channel it is described extremely
When first time point in few two time points is idle, upstream data subframe is sent to base station.
The transmitting uplink data device based on LAA networks described in the present embodiment is used to perform above-mentioned each implementation
The uplink data transmission method based on LAA networks described in example, its technical principle and the technique effect produced
It is similar, repeat no more here.
On the basis of above-described embodiment, the LBT detection modules are specifically for sub by the upstream data
Frame is divided at least two part subframes, and at least two time point is correspondingly arranged as each part respectively
The start time point of subframe.
On the basis of above-described embodiment, described device also includes：Modulating-coding module 33；
The modulating-coding module 33 is configured at UE sides, for being respectively adopted not for different time points
Same modulation coding mode carries out re-modulation coding to the upstream data subframe；
Accordingly, the data transmission blocks 32 are specifically for determining the unauthorized channel described first
When time point is idle, the upstream data subframe after the corresponding modulating-coding of the first time point is sent to base station.
On the basis of above-described embodiment, the modulating-coding module 33 includes：Coded system sets submodule
Block 331 and modulating-coding submodule 332；
The coded system sets submodule 331 to be used to according to time order and function order be to set not at each time point
The modulation coding mode of ad eundem；
The modulating-coding submodule 332 is used to distinguish corresponding modulation coding mode for different time points
Re-modulation coding is carried out to the upstream data subframe.
On the basis of above-described embodiment, the coded system sets submodule 331 specifically for for each
Time point counts the residue transmission time relative to second time difference；It is according to the residue transmission time
Each time point sets different grades of modulation coding mode, so that up after each time point modulating-coding
Data burst being capable of end of transmission within the residue transmission period.
On the basis of above-described embodiment, the coded system sets submodule 331 specifically for according to the time
The modulating-coding that first time point corresponding modulation coding mode is set to arrange with base station by sequencing
Mode, is that the antijamming capability of the modulation coding mode set at remaining time point successively decreases successively.
On the basis of above-described embodiment, the LBT detection modules 31 are specifically for suitable according to time order and function
Sequence selects earliest time point as first time point, and unauthorized channel is entered at first time point
Row LBT is detected；If it is determined that the unauthorized channel is in first free time at time point, then by described
One time point, as first time point, triggers the operation that upstream data subframe is sent to base station；If it is determined that institute
State unauthorized channel busy at first time point, then according to time order and function order from remaining time point
Select second time point as first time point, repeat LBT detecting steps.
On the basis of above-described embodiment, after being arranged at least two time point according to time order and function order
Last time point complete upstream data sub-frame transmission time point and first time point time difference
Equal to second time difference.
The transmitting uplink data device based on LAA networks described in the various embodiments described above is above-mentioned each for performing
The uplink data transmission method based on LAA networks described in embodiment, its technical principle and the technology produced
Effect is similar, repeats no more here.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.Those skilled in the art
It will be appreciated that the invention is not restricted to specific embodiment described here, can enter for a person skilled in the art
Row it is various it is obvious change, readjust and substitute without departing from protection scope of the present invention.Therefore, though
So the present invention is described in further detail by above example, but the present invention be not limited only to
Upper embodiment, without departing from the inventive concept, can also include other more equivalent embodiments,
And the scope of the present invention is determined by scope of the appended claims.
Claims (16)
1. a kind of uplink data transmission method based on LAA networks, it is characterised in that including：
User equipment (UE) is supervised before being engaged in the dialogue according at least two time points pre-set to unauthorized channel
LBT is listened to detect, the very first time difference of adjacent time point is less than neighboring upstream at least two time point
Second time difference of start time point in data burst；
The UE determines that first time point of the unauthorized channel at least two time point is idle
When, send upstream data subframe to base station.
2. according to the method described in claim 1, it is characterised in that the UE is according to pre-setting
At least two time points monitored LBT detections before being engaged in the dialogue to unauthorized channel, including：
The upstream data subframe is divided at least two part subframes by the UE, by described at least two
Time point is correspondingly arranged as the start time point of each part subframe respectively.
3. according to the method described in claim 1, it is characterised in that also include：
Different modulation coding modes are respectively adopted to the upstream data for different time points in the UE
Subframe carries out re-modulation coding；
Accordingly, when the UE determines first of the unauthorized channel at least two time point
Between when putting idle, send upstream data subframe to base station, including：
The UE determines that the unauthorized channel, when the first time point is idle, sends described to base station
Upstream data subframe after the corresponding modulating-coding of first time point.
4. method according to claim 3, it is characterised in that the UE is directed to the different time
Point is respectively adopted different modulation coding modes and re-modulation coding is carried out to the upstream data subframe, including：
The UE is to set different grades of modulation coding mode at each time point according to time order and function order；
The UE distinguishes corresponding modulation coding mode to the upstream data subframe for different time points
Carry out re-modulation coding.
5. method according to claim 4, it is characterised in that the UE is suitable according to time order and function
Sequence is to set different grades of modulation coding mode each time point, including：
The UE counts the residue transmission time relative to second time difference for each time point；
The UE is to set different grades of modulating-coding side at each time point according to the residue transmission time
Formula, so that the upstream data subframe after each time point modulating-coding can within the residue transmission period
End of transmission.
6. method according to claim 4, it is characterised in that the UE is suitable according to time order and function
Sequence is to set different grades of modulation coding mode each time point, including：
The UE according to time order and function order by first time point corresponding modulation coding mode be set to
The modulation coding mode of base station agreement, is the antijamming capability of the modulation coding mode set at remaining time point
Successively decrease successively.
7. according to the method described in claim 1, it is characterised in that the UE is according to pre-setting
At least two time points carried out LBT detections to unauthorized channel, including：
The UE according to time order and function sequential selection earliest time point as first time point, described
First time point carries out LBT detections to unauthorized channel；
If the UE determines the unauthorized channel in first free time at time point, by described first
Individual time point, as first time point, triggers the operation that upstream data subframe is sent to base station；
It is first according to the time if the UE determines that the unauthorized channel is busy at first time point
Order selects second time point as first time point from remaining time point afterwards, repeats LBT
Detecting step.
8. the method according to any one of claim 1~7, it is characterised in that when described at least two
Between put according to time order and function order arrange after last time point complete upstream data sub-frame transmission
Time point and first time point time difference be equal to second time difference.
9. a kind of transmitting uplink data device based on LAA networks, it is characterised in that including：
LBT detection modules, are configured at UE sides, for according at least two time points for pre-setting to non-
Authorization channel carries out LBT detections, and the very first time difference of adjacent time point is small at least two time point
The second time difference of start time point in neighboring upstream data burst；
Data transmission blocks, are configured at UE sides, for determining the unauthorized channel described at least two
When first time point in time point is idle, upstream data subframe is sent to base station.
10. device according to claim 9, it is characterised in that the LBT detection modules are specific
For：
The upstream data subframe is divided at least two part subframes, by least two time point point
It is not correspondingly arranged as the start time point of each part subframe.
11. device according to claim 9, it is characterised in that also include：
Modulating-coding module, is configured at UE sides, for different tune to be respectively adopted for different time points
Coded system processed carries out re-modulation coding to the upstream data subframe；
Accordingly, the data transmission blocks specifically for：
Determine that the unauthorized channel, when the first time point is idle, the very first time is sent to base station
Upstream data subframe after the corresponding modulating-coding of point.
12. device according to claim 11, it is characterised in that the modulating-coding module includes：
Coded system sets submodule, for being to set different brackets at each time point according to time order and function order
Modulation coding mode；
Modulating-coding submodule, for distinguishing corresponding modulation coding mode to described for different time points
Upstream data subframe carries out re-modulation coding.
13. device according to claim 12, it is characterised in that the coded system sets submodule
Block specifically for：
The residue transmission time relative to second time difference is counted for each time point；According to described surplus
Remaining transmission time is to set different grades of modulation coding mode at each time point, so that each time point modulation
Upstream data subframe after coding being capable of end of transmission within the residue transmission period.
14. device according to claim 12, it is characterised in that the coded system sets submodule
Block specifically for：
First time point corresponding modulation coding mode is set to base station about according to time order and function order
Fixed modulation coding mode, is that the antijamming capability of the modulation coding mode set at remaining time point is passed successively
Subtract.
15. device according to claim 9, it is characterised in that the LBT detection modules are specific
For：
According to time order and function sequential selection earliest time point as first time point, at described first
Between put to unauthorized channel carry out LBT detections；If it is determined that the unauthorized channel is in first time
Point is idle, then using first time point as first time point, triggers to base station and sends upstream data
The operation of frame；If it is determined that the unauthorized channel is busy at first time point, then according to time order and function
Order selects second time point as first time point from remaining time point, repeats LBT inspections
Survey step.
16. the device according to any one of claim 9~15, it is characterised in that described at least two
Last time point after being arranged in time point according to time order and function order completes upstream data sub-frame transmission
Time point and first time point time difference be equal to second time difference.
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