CN105577320B - A kind of data transmission method and device - Google Patents
A kind of data transmission method and device Download PDFInfo
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- CN105577320B CN105577320B CN201410555110.4A CN201410555110A CN105577320B CN 105577320 B CN105577320 B CN 105577320B CN 201410555110 A CN201410555110 A CN 201410555110A CN 105577320 B CN105577320 B CN 105577320B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention discloses a kind of data transmission method and device, to by a kind of smaller novel subframe of length, to reduce the propagation delay time of the data transmission using the novel subframe.A kind of data transmission method provided by the invention, including：Determine that the when of carrying out data transmission with user equipment (UE) needs the frame structure used；Wherein, the frame structure includes at least one novel subframe, which includes n symbol, when the cyclic prefix CP that the novel subframe includes is short CP, n<14；When the CP that the novel subframe includes is long CP, n<12；Carry out data transmission according between the frame structure and the UE.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of data transmission methods and device.
Background technology
Long term evolution (Long Term Evolution, LTE) system supports frequency division duplex (Frequency Division
Duplex, FDD) and time division duplex (Time Division Duplex, TDD) two kinds of frame structure.
In the frame structure of LTE FDD, the length of each frame is 10ms, is made of the subframe that 10 length are 1ms, each
A subframe is made of the time slot that 2 length are 0.5ms.
In the frame structure of TD-LTE, the length of each frame is 10ms, is made of the field that two length are 5ms, in 5ms
Under switching point cycle stage, each field is made of the special subframe of the conventional subframe of 4 1ms and a 1ms；It is cut in 10ms
It changes under a cycle stage, first field is made of the special subframe of the conventional subframe of 4 1ms and a 1ms, second field
It is made of the conventional subframe of 5 1ms.One conventional subframe is made of the time slot that 2 length are 0.5ms；One special subframe by
Descending pilot frequency time slot (Downlink Pilot Time Slot, DwPTS), protection interval (Guard Period, GP) and on
Row pilot time slot (Uplink Pilot Time Slot, UpPTS) is constituted.
In LTE system, it is scheduled and transmits as unit of subframe, i.e., the data dispatched every time at least map
It is transmitted again on to the running time-frequency resource of a subframe, this causes the minimum-time lag of data packet one-way transmission to be 1ms.
In order to ensure that transmission reliability, LTE system physical layer introduce mixed automatic retransfer (Hybrid-ARQ, HARQ) machine
System.
It is transmitted as example with downlink, the basic process of LTE system HARQ transmission includes：
Step 1：Downlink data packet is dispatched and sent in base station, and UE receives downlink data packet and handles；
Step 2：If UE cannot correctly detect downlink data packet, to base station feedback NACK；Base station receives uplink feedback
Signaling；
Step 3：Base station is fed back according to UE, and tissue retransmits data packet and sends downlink retransmitted data packet；UE, which is received, retransmits number
According to packet；
Step 4：If UE is received successfully, to base station feedback ACK, if cannot still be properly received, step 2~step is repeated
Rapid three.
Physical layer transmission single Block Error Rate average out to 10%, will reach 10-3Block Error Rate, it is average to need to transmit three times, i.e.,
It retransmits twice.
In LTE FDD systems, be initially transmitted to the time delay spacing t1=4ms of uplink feedback, uplink feedback to retransmit when
Prolong interval t2=4ms, i.e. HARQ re-transmission periods (HARQ round trip time, RTT)=8ms.In LTE TDD systems,
HARQ RTT are different according to the difference that ascending-descending subframes configure, and are 10ms~15ms.
As it can be seen that reach 10-3Block Error Rate, only physical layer time delay is average just reaches 16~30ms.
In conclusion current LTE frame structure minimum unidirectional transmission time delays are 1ms, to ensure that transmission reliability introduces HARQ
After mechanism, to reach high reliability, physical layer mean transit delay is up to 16~30ms.Therefore, LTE frames knot in the prior art
Propagation delay time caused by structure is longer, cannot be satisfied the requirements at the higher level of future transmission time delay.
Invention content
An embodiment of the present invention provides a kind of data transmission method and devices, to pass through a kind of smaller novel son of length
Frame, to reduce the propagation delay time of the data transmission using the novel subframe.
A kind of data transmission method provided in an embodiment of the present invention, including：
Determine that the when of carrying out data transmission with user equipment (UE) needs the frame structure used；Wherein, the frame structure includes
At least one novel subframe, the novel subframe include n symbol, when the cyclic prefix CP that the novel subframe includes is short CP
When, n<14；When the CP that the novel subframe includes is long CP, n<12；
Carry out data transmission according between the frame structure and the UE.
By a kind of smaller novel subframe of the length provided in this method, quick data transmission can be carried out, is reduced
Time delay.
Preferably, determine that the when of carrying out data transmission with user equipment (UE) needs the frame structure used, including：
For long term evolution LTE system compatible carrier wave, in LTE system frame structure, using part subframe as expansion sub-frame,
The expansion sub-frame includes multiple novel subframes, and determines the uplink-downlink configuration of the multiple novel subframe.
To pass through the extension to existing LTE system frame structure so that the novel subframe proposed in the embodiment of the present invention can
With the existing LTE system of compatibility.
Preferably, the point alignment of the starting point of first novel subframe in the expansion sub-frame and the expansion sub-frame；
Alternatively, being provided between the starting point and the starting point of the expansion sub-frame of first novel subframe in the expansion sub-frame
First protection interval.To which by first protection interval, the conversion between existing LTE subframes and novel subframe may be implemented.
Preferably, when the terminal of the last one novel subframe in the expansion sub-frame and the terminal of the expansion sub-frame can not
When alignment, second is provided between the terminal of the last one novel subframe and the terminal of the expansion sub-frame in the expansion sub-frame
Protection interval.To by second protection interval, realize the conversion between existing LTE subframes and novel subframe.
Preferably, determine that the when of carrying out data transmission with user equipment (UE) needs the frame structure used, including：
For non-long term evolution LTE system compatible carrier wave, the energy reported according to business data transmission demand and/or the UE
Force information determines the length of the novel subframe in each frame and the uplink-downlink configuration of novel subframe.
Preferably, same frame includes the novel subframe of different lengths.So that the configuration of subframe lengths is more flexible,
Suitable for more transmission demands.
Preferably, in the frame structure, the novel subframe of downlink and the novel sub-frame interval arrangement of uplink.So that will
Most fast feedback subframe is set as negative direction subframe and transmits situation for feedback data.
Preferably, this method further includes：
The subframe configuration information of novel subframe is notified to the UE.So that UE knows the subframe of novel subframe
Configuration information determines the subframe structure of novel subframe, and then carries out corresponding data transmission using novel subframe.
Preferably, this method further includes：
According to volume of transmitted data and delay requirement, the subframe configuration information of the novel subframe is adjusted, and will be adjusted
Subframe configuration information after whole is notified to the UE.It, at any time can be according to data transmission to realize that novel subframe lengths can match
Amount and delay requirement, carry out novel subframe lengths adjustment so that can carry out data transmission at any time using newest novel subframe.
Preferably, this method further includes：
Using next novel subframe at the end of data transmission and processing as feedback subframe, feedback data transmission process result；
And/or
Next novel subframe after feedback signaling will have been handled, and to be set as transmission direction identical with initial transmission direction
Subframe is retransmitted, data re-transmission is carried out.
It is thus possible to farthest reduce the repeat request time delay of novel subframe.
Another kind data transmission method provided by the invention, including：
The frame structure used is needed when user equipment (UE) determines and network side carries out data transmission；Wherein, the frame structure
Include at least one novel subframe, which includes n symbol, when the cyclic prefix CP that the novel subframe includes is
When short CP, n<14；When the CP that the novel subframe includes is long CP, n<12；
The UE carries out data transmission according between the frame structure and the network side.
To which UE can carry out quick data transmission by the novel subframe in this method, reduce time delay.
Preferably, the UE, which is determined, needs the frame structure used when carrying out data transmission with network side, including：
The UE receives the subframe configuration information for the novel subframe that the network side is sent；
The subframe configuration information for the novel subframe that the UE is sent according to the network side is determined and is carried out with the network side
The frame structure used is needed when data transmission.
Preferably, the UE determines before needing the frame structure used when carrying out data transmission with network side that this method is also
Including：
The UE reports the ability information of itself to the network side.So that network side is carrying out novel sub-frame configuration
When can with reference to the UE ability information carry out reasonable disposition.
Preferably, this method further includes：
The UE receives the subframe after the subframe configuration information to novel subframe that the network side is sent is adjusted and matches
Confidence ceases；
The UE is redefined according to the subframe configuration information after the adjustment when carrying out data transmission with the network side
Need the frame structure used；
The UE redefines the when of carrying out data transmission with the network side and needs the frame structure that uses according to described, with institute
It states and carries out data transmission between network side.
To realize that novel subframe lengths can match, novel son can be carried out according to volume of transmitted data and delay requirement at any time
Frame length adjusts so that can be carried out data transmission at any time using newest novel subframe.
Preferably, this method further includes：
The UE is using next novel subframe at the end of data transmission and processing as feedback subframe, feedback data transmission process
As a result；And/or
Next novel subframe after the UE will handle feedback signaling is set as transmission direction and initial transmission direction
Identical re-transmission subframe carries out data re-transmission.
It is thus possible to farthest reduce the repeat request time delay of novel subframe.
A kind of data transmission device provided in an embodiment of the present invention, including：
Frame structure determination unit needs the frame structure used when carrying out data transmission with user equipment (UE) for determining；Its
In, the frame structure includes at least one novel subframe, which includes n symbol, when the novel subframe includes
Cyclic prefix CP be short CP when, n<14；When the CP that the novel subframe includes is long CP, n<12；
Transmission unit, for carrying out data transmission according between the frame structure and the UE.
Preferably, the frame structure determination unit, is specifically used for：
For long term evolution LTE system compatible carrier wave, in LTE system frame structure, using part subframe as expansion sub-frame,
The expansion sub-frame includes multiple novel subframes, and determines the uplink-downlink configuration of the multiple novel subframe.
Preferably, the point alignment of the starting point of first novel subframe in the expansion sub-frame and the expansion sub-frame；
Alternatively, being provided between the starting point and the starting point of the expansion sub-frame of first novel subframe in the expansion sub-frame
First protection interval.
Preferably, when the terminal of the last one novel subframe in the expansion sub-frame and the terminal of the expansion sub-frame can not
When alignment, second is provided between the terminal of the last one novel subframe and the terminal of the expansion sub-frame in the expansion sub-frame
Protection interval.
Preferably, the frame structure determination unit, is specifically used for：
For non-long term evolution LTE system compatible carrier wave, the energy reported according to business data transmission demand and/or the UE
Force information determines the length of the novel subframe in each frame and the uplink-downlink configuration of novel subframe.
Preferably, same frame includes the novel subframe of different lengths.
Preferably, in the frame structure, the novel subframe of downlink and the novel sub-frame interval arrangement of uplink.
Preferably, the transmission unit is additionally operable to：The subframe configuration information of novel subframe is notified to the UE.
Preferably, the transmission unit is additionally operable to：
According to volume of transmitted data and delay requirement, the subframe configuration information of the novel subframe is adjusted, and will be adjusted
Subframe configuration information after whole is notified to the UE.
Preferably, the transmission unit is additionally operable to：
Using next novel subframe at the end of data transmission and processing as feedback subframe, feedback data transmission process result；
And/or
Next novel subframe after feedback signaling will have been handled, and to be set as transmission direction identical with initial transmission direction
Subframe is retransmitted, data re-transmission is carried out.
Another kind data transmission device provided in an embodiment of the present invention, including：
Frame structure determination unit needs the frame structure used when carrying out data transmission with network side for determining；Wherein, institute
It includes at least one novel subframe to state frame structure, which includes n symbol, when the cycle that the novel subframe includes
When prefix CP is short CP, n<14；When the CP that the novel subframe includes is long CP, n<12；
Transmission unit, for carrying out data transmission according between the frame structure and the network side.
Preferably, the frame structure determination unit, is specifically used for：
Receive the subframe configuration information for the novel subframe that the network side is sent；
According to the subframe configuration information for the novel subframe that the network side is sent, determines and carry out data biography with the network side
The frame structure used is needed when defeated.
Preferably, the transmission unit, is additionally operable to determine and network side progress data biography in the frame structure determination unit
Before needing the frame structure used when defeated, report the ability information of the UE where described device to the network side.
Preferably, the transmission unit, is additionally operable to：
Receive the subframe configuration information after the subframe configuration information to novel subframe that the network side is sent is adjusted；
According to the subframe configuration information after the adjustment, redefines and need to adopt when with the network side carrying out data transmission
Frame structure；
It redefines the when of carrying out data transmission with the network side according to described and needs the frame structure that uses, with the network
Carry out data transmission between side.
Preferably, the transmission unit, is additionally operable to：
Using next novel subframe at the end of data transmission and processing as feedback subframe, feedback data transmission process result；
And/or
Next novel subframe after feedback signaling will have been handled, and to be set as transmission direction identical with initial transmission direction
Subframe is retransmitted, data re-transmission is carried out.
Description of the drawings
Fig. 1 is a kind of flow diagram of data transmission method of network side provided in an embodiment of the present invention；
Fig. 2 is the novel sub-frame configuration schematic diagram provided in an embodiment of the present invention for LTE system compatible carrier wave；
Fig. 3 is the novel sub-frame configuration schematic diagram provided in an embodiment of the present invention for non-LTE system compatible carrier wave；
Fig. 4 is a kind of flow diagram of data transmission method in the sides UE provided in an embodiment of the present invention；
Fig. 5 is a kind of uplink-downlink configuration schematic diagram of novel subframe provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of data transmission device of network side provided in an embodiment of the present invention；
Fig. 7 is a kind of structural schematic diagram of data transmission device in the sides UE provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of another data transmission device of network side provided in an embodiment of the present invention；
Fig. 9 is the structural schematic diagram of another data transmission device of the sides UE provided in an embodiment of the present invention.
Specific implementation mode
An embodiment of the present invention provides a kind of data transmission method and devices, to pass through a kind of smaller novel son of length
Frame, to reduce the propagation delay time of the data transmission using the novel subframe.
Technical solution provided in an embodiment of the present invention can solve the son that basic thread in LTE system is 1ms length
The propagation delay time limitation that frame is brought.Propagation delay time is reduced from basic structure, to meet 5G air interface transmission delay requirements.
Referring to Fig. 1, in network side, specifically, for example in base station side, a kind of transmission side data provided in an embodiment of the present invention
Method, including step：
The frame structure used is needed when S101, determination and user equipment (UE) carry out data transmission；Wherein, in the frame structure
Including at least one novel subframe, which includes n symbol, when the cyclic prefix CP that the novel subframe includes is short
When CP, n<14；When the CP that the novel subframe includes is long CP, n<12；
S102, carry out data transmission according between the frame structure and the UE.
By a kind of smaller novel subframe of the length provided in this method, quick data transmission can be carried out, is reduced
Time delay.
The novel subframe structure proposed in the embodiment of the present invention, subframe lengths are variable, and novel subframe lengths are n symbol.
The design method that novel subframe occupies symbol numbers parameter n is：
When the CP that the novel subframe includes is short CP (being referred to as conventional CP), n<14；
When the CP that the novel subframe includes is long CP (being referred to as extension CP), n<12.
In the embodiment of the present invention, symbolic number that the length of novel subframe occupies is indicated, for example, novel subframe length
Degree is 3, then it represents that 3 symbols that the novel subframe occupies.
Preferably, in order to avoid waste of resource, resource utilization is improved：
When the CP that the novel subframe includes be short CP when, n be 14 common divisor；
When the CP that the novel subframe includes be long CP when, n be 12 common divisor.
Such as：
When the CP that the novel subframe includes is short CP, n 1,2 or 7；
When the CP that the novel subframe includes is long CP, n 1,2,3,4 or 6.
Preferably, determine that the when of carrying out data transmission with user equipment (UE) needs the frame structure used, including：
For long term evolution LTE system compatible carrier wave, (network side is it is known which carrier wave is LTE system compatible carrier wave
), in LTE system frame structure, using part subframe as expansion sub-frame, which includes multiple novel subframes, and
And determine the uplink-downlink configuration of the multiple novel subframe.
To pass through the extension to existing LTE system frame structure so that the novel subframe proposed in the embodiment of the present invention can
With the existing LTE system of compatibility.
Specifically, for LTE system compatible carrier wave, frame structure design is as follows：
The novel subframe designs mode compatible with LTE system be：
In LTE frame structures, setting unit subframe (1ms) is expansion sub-frame, and expansion sub-frame time-domain position is new for configuring
Type subframe has multiple novel subframes, and continuous arrangement in one LTE expansion sub-frame duration.
First novel subframe starting point and original LTE subframe alignments in LTE expansion sub-frames, or reserve first protection interval
GP1 is for the conversion between tradition LTE subframes and novel subframe；
If in LTE expansion sub-frames after (1ms) novel subframe continuous arrangement, behind remaining duration be not enough to accommodate one
The terminal of novel subframe, the i.e. novel subframe of the last one in expansion sub-frame can not be aligned with the terminal of the expansion sub-frame, then will
Remaining duration is as the second protection interval GP2；Also, preferably, due to that (can be current extensions between two subframes
Can also be current extensions between first novel subframe in the last one novel subframe in frame and next expansion sub-frame
Between the last one novel subframe and next original LTE subframes in frame) it is already provided with GP2, therefore, the GP2 is subsequently either
First novel subframe in next expansion sub-frame or original LTE subframes, arrangement starting point all with the subsequent next originals of the GP2
There are LTE subframes to play point alignment；Certainly, if continuously one protection interval of setting is also possible again after GP2, do not have too big necessity only
?.
Referring to Fig. 2, it configures LTE subframes 2 to expansion sub-frame, for accommodating novel subframe, expansion sub-frame can be downlink
Subframe may be sub-frame of uplink.0 ' starting point of novel subframe plays point alignment with expansion sub-frame 2；There are three new in expansion sub-frame 2
Type subframe, respectively novel subframe 0 ', novel subframe 1 ', novel subframe 2 '；The end of the terminal and expansion sub-frame 2 of novel subframe 2 '
Duration between point is set as the second protection interval GP2, converts for novel subframe and tradition LTE subframes, specifically, that is, is used for
The conversion of novel subframe 2 ' and LTE subframes 3.Such as：LTE subframes account for 14 symbols, and novel subframe accounts for 4 symbols, and there are three 1ms
Novel subframe, then GP2 account for 2 symbols.
Under this configuration, there are traditional LTE 1ms subframes and a variety of subframe lengths of novel subframe.Traditional LTE UE are only
Data dispatch and transmission are carried out in LTE subframes, it can be in LTE for specific low time delay demand UE (hereinafter referred to as novel UE)
Data dispatch and transmission can also be carried out in subframe in novel subframe, there is the ability for handling a variety of subframe lengths.
Preferably, for non-long term evolution LTE system compatible carrier wave, determine that the when of carrying out data transmission with user equipment (UE) needs
The frame structure to be used, including：
For non-long term evolution LTE system compatible carrier wave, the energy reported according to business data transmission demand and/or the UE
Force information determines the length of the novel subframe in each frame and the uplink-downlink configuration of novel subframe.
Specifically, for non-LTE system compatible carrier wave, (network side is it is known which carrier wave is non-LTE system compatibility
Carrier wave), frame structure design is as shown in Figure 3, wherein k is greater than or equal to 2.
For non-LTE system compatible carrier wave, only novel UE work, system is reported according to data transfer demands and/or UE
Ability information, including time delay and data volume size requirement etc. are arranged novel subframe lengths and notify UE.In order to accommodate inhomogeneity
The UE of type, novel subframe lengths can also include a variety of, such as include the novel son that length is 3 symbols and 7 symbols simultaneously
Frame, referring to Fig. 3, for example, in first 1ms, k values are 2, and in second 1ms, k values are 3.It is directed to different UE, k's
Value can be different；For the same UE, k can also have multiple values, i.e. section in different times, and the value of k can not
Together.
It is thus preferable to which same frame includes the novel subframe of different lengths.So that the configuration of subframe lengths is more
Flexibly, it is suitable for more transmission demands.
In addition, similarly, the frame structure of each frame can be identical or different.
Preferably, in the frame structure, the novel subframe of downlink and the novel sub-frame interval arrangement of uplink.So that will
Most fast feedback subframe is set as negative direction subframe and transmits situation for feedback data.
Preferably, this method further includes：
The subframe configuration information of novel subframe is notified to the UE, such as broadcast message or private radio money may be used
Source controls (Radio Resource Control, RRC) signaling method, and the subframe configuration information of novel subframe is notified to described
UE.So that UE knows the subframe configuration information of novel subframe, the subframe structure of novel subframe is determined, and then using new
Type subframe carries out corresponding data transmission.
Wherein, preferably, the subframe configuration information of the novel subframe described in the embodiment of the present invention, including novel subframe
Length and ascending-descending subframes configuration information.
Preferably, this method further includes：
According to volume of transmitted data and delay requirement, the subframe configuration information of the novel subframe is adjusted, and will be adjusted
Subframe configuration information after whole is notified to the UE.It, at any time can be according to data transmission to realize that novel subframe lengths can match
Amount and delay requirement, carry out novel subframe lengths adjustment so that can carry out data transmission at any time using newest novel subframe.
Preferably, this method further includes：
Using next novel subframe at the end of data transmission and processing as feedback subframe, feedback data transmission process result；
And/or
Next novel subframe after feedback signaling will have been handled, and to be set as transmission direction identical with initial transmission direction
Subframe is retransmitted, data re-transmission is carried out.
It is thus possible to farthest reduce the repeat request time delay of novel subframe.
Correspondingly, referring to Fig. 4, in the sides UE, another kind data transmission method provided by the invention, including step：
The frame structure used is needed when S201, user equipment (UE) determine and network side carries out data transmission；Wherein, the frame
Structure includes at least one novel subframe, which includes n symbol, when the cyclic prefix that the novel subframe includes
When CP is short CP, n<14；When the CP that the novel subframe includes is long CP, n<12；
S202, the UE carry out data transmission according between the frame structure and the network side.
To which UE can carry out quick data transmission by the novel subframe in this method, reduce time delay.
Preferably, the UE, which is determined, needs the frame structure used when carrying out data transmission with network side, including：
The UE receives the subframe configuration information for the novel subframe that the network side is sent；
The subframe configuration information for the novel subframe that the UE is sent according to the network side is determined and is carried out with the network side
The frame structure used is needed when data transmission.
Preferably, the UE determines before needing the frame structure used when carrying out data transmission with network side that this method is also
Including：
The UE reports the ability information of itself to the network side.So that network side is carrying out novel sub-frame configuration
When can with reference to the UE ability information carry out reasonable disposition.
Preferably, this method further includes：
The UE receives the subframe after the subframe configuration information to novel subframe that the network side is sent is adjusted and matches
Confidence ceases；
The UE is redefined according to the subframe configuration information after the adjustment when carrying out data transmission with the network side
Need the frame structure used；
The UE redefines the when of carrying out data transmission with the network side and needs the frame structure that uses according to described, with institute
It states and carries out data transmission between network side.
To realize that novel subframe lengths can match, novel son can be carried out according to volume of transmitted data and delay requirement at any time
Frame length adjusts so that can be carried out data transmission at any time using newest novel subframe.
Preferably, this method further includes：
The UE is using next novel subframe at the end of data transmission and processing as feedback subframe, feedback data transmission process
As a result；And/or
Next novel subframe after the UE will handle feedback signaling is set as transmission direction and initial transmission direction
Identical re-transmission subframe carries out data re-transmission.
It is thus possible to farthest reduce the repeat request time delay of novel subframe.
Illustrating for four embodiments is given below.
Embodiment one：Non- LTE system compatible carrier wave enables novel subframe.
For specific low time delay demand UE (hereinafter referred to as novel UE), for example, the machine type communication that delay requirement is high
(Machine Type Communication, MTC) UE uses novel son in new carrier wave (i.e. non-LTE system compatible carrier wave)
Frame structure (for example, frame structure as shown in Figure 3) carries out data transmission, then detailed process includes：
Step 1：Novel UE initiates initial access process to network, reports the ability information of UE；
Step 2：The network side equipment (can be specifically base station) of the non-LTE system compatible carrier wave of novel subframe is supported to connect
UE access request is received, and therefrom obtains the ability information of UE, determines UE abilities；
Step 3：Support the network side equipment of the non-LTE system compatible carrier wave of novel subframe when accessing novel UE, to UE
The subframe configuration information for sending novel subframe, including the subframe lengths (including symbolic number) of novel subframe and novel subframe
Ascending-descending subframes configuration, complete novel sub-frame configuration.Subsequent transmission and scheduling can be by novel sub-frame configuration mode (sons
Frame length, ascending-descending subframes configuration etc.) it carries out.
Wherein, the subframe configuration information can also include sub-frame informations of the UE for feedback data transmission result, such as
UE feeds back the subframe numbers of subframe used by NACK or ACK message.
Embodiment two：LTE system compatible carrier wave enables novel subframe.
Specifically data transmission flow includes：
Step 1：The base station of compatible LTE carrier waves, works by LTE frame structures and configures subframe parameter.It is novel needing to configure
When subframe, for example, being required very when it is the exigent private network of the transmission speeds such as 5G to determine current network, or in transmission speed
It is expansion sub-frame by part LTE sub-frame configurations when high business is established, or when UE initiates to configure the request of novel subframe,
The expansion sub-frame includes multiple novel subframes, and expansion sub-frame can may be sub-frame of uplink for downlink subframe, and compatible
The base station of LTE carrier waves controls (Radio Resource Control, RRC) signaling side using broadcast message or dedicated radio resources
Formula notifies the subframe configuration information of novel subframe to UE.
Step 2：The behavior of LTE UE and novel UE is respectively：
LTE UE receive the subframe configuration information of novel subframe, the i.e. configuration information of LTE expansion sub-frames, on expansion sub-frame
Without data dispatch and transmission (suitable for the UE of expansion sub-frame configuration signal can be parsed), or, LTE UE are on expansion sub-frame
Scheduling and transmission are received by LTE subframe patterns, but due to being transmitted by LTE subframe patterns, LTE UE cannot receive any
Correct traffic order and data transmission (suitable for the UE of expansion sub-frame configuration signal cannot be parsed)；
Novel UE further receives the subframe configuration information of novel subframe, it may for example comprise subframe lengths, CP, GP length, son
Frame transmission direction etc., and according to the subframe configuration information of novel subframe, determine novel sub-frame configuration, specifically, it is determined that extension
The subframe numbers of frame, and determine the number of novel subframe and length and CP, GP length, each novel subframe in the expansion sub-frame
Uplink-downlink configuration etc..
Subsequently, base station and UE carry out data dispatch and transmission by novel sub-frame configuration in expansion sub-frame, in traditional LTE subframes
Data dispatch and transmission are carried out by LTE sub-frame configurations.
Embodiment three：Novel subframe lengths can match.
Data transmission flow specifically includes：
Step 1：Various new subframe lengths are arranged in system, as under long CP, 2,3,4,6 symbolic numbers of setting totally 4 kinds it is novel
Subframe lengths.Various new sub-frame configuration option can notify UE by network side, can also be solidificated in base station and UE storages；
Step 2：The data volume that network side transmits according to actual needs, such as have for specific MTC UE relatively-stationary
Data package size range by quickly transmission principle, such as can once transfer downlink or uplink data packet, design actual needs
Novel subframe lengths；
Step 3：Network side carries out the novel sub-frame configuration for data transmission, and the sub-frame configuration of novel subframe is believed
Breath notifies UE by broadcast or dedicated signaling (RRC signaling of eating dishes without rice or wine or Non-Access Stratum signaling)；
Step 4：Network side carries out novel subframe lengths adjustment according to volume of transmitted data and delay requirement, is needing to carry out
When novel subframe lengths change, by the subframe configuration information of the novel subframe after adjustment, by broadcast or dedicated signaling, (eat dishes without rice or wine RRC
Signaling or Non-Access Stratum signaling) notice UE.
The action process of UE is corresponding with network side, and details are not described herein.
Example IV：The repeat request time delay of novel subframe.
In order to improve delay performance, the transmission direction of novel subframe can not be consistent with former LTE expansion sub-frames direction, example
Such as, referring to Fig. 5, the transmission direction of LTE subframes 1 is downlink, but using the subframe as expansion sub-frame in the embodiment of the present invention, wherein
Including 3 novel subframes, respectively novel subframe 0 ', novel subframe 1 ', novel subframe 2 ', wherein novel subframe 0 ' and novel son
The transmission direction of frame 2 ' is downlink, and the transmission direction of novel subframe 1 ' is uplink, the terminal of novel subframe 2 ' to LTE subframes 1
Terminal between be the second protection interval GP2.Similarly, the transmission direction of LTE subframes 2 is downlink, but will in the embodiment of the present invention
The subframe is as expansion sub-frame, including 3 novel subframes, respectively novel subframe 3 ', novel subframe 4 ', novel subframe
5 ', wherein the transmission direction of novel subframe 3 ' and novel subframe 5 ' is uplink, and the transmission direction of novel subframe 4 ' is downlink, newly
The terminal of type subframe 5 ' between the terminal of LTE subframes 2 be the second protection interval GP2.
Under the premise of base station and UE processing capacities improve, it would be possible to most feedback subframe is set as negative direction subframe use soon
In feedback, such as：The novel subframe of downlink and the novel subframe consecutive intervals arrangement of uplink.As shown in figure 5, if base station and UE can
Data processing is completed in a novel subframe and generates feedback, then the uplink-downlink configuration of novel subframe is the novel subframe of uplink and downlink
Interval configuration.For example, the transmission of downlink data packet 1 is carried out in novel subframe 0 ', feedback is carried out in novel subframe 1 ', is retransmitted for the first time
It is carried out in novel subframe 2 '.
Therefore, the regulation to feeding back, retransmitting subframe time delay is proposed in the embodiment of the present invention：It is carried in base station and UE processing capacities
Under the premise of height, it would be possible to most feedback subframe is set as negative direction subframe for feeding back soon；Will feedback subframe after it is possible most
The fast subframe that retransmits is set as the subframe with the initial transmission same direction.Such as：
Using next novel subframe at the end of data transmission and processing as feedback subframe, feedback data transmission process result；
And/or
Next novel subframe after feedback signaling will have been handled, and to be set as transmission direction identical with initial transmission direction
Subframe is retransmitted, data re-transmission is carried out.
It is thus possible to farthest reduce the repeat request time delay of novel subframe.
Referring to Fig. 6, in network side, a kind of data transmission device provided in an embodiment of the present invention, including：
Frame structure determination unit 11 needs the frame structure used when carrying out data transmission with user equipment (UE) for determining；
Wherein, the frame structure includes at least one novel subframe, which includes n symbol, is wrapped when in the novel subframe
When the cyclic prefix CP included is short CP, n<14；When the CP that the novel subframe includes is long CP, n<12；
Transmission unit 12, for carrying out data transmission according between the frame structure and the UE.
Preferably, the frame structure determination unit 11, is specifically used for：
For long term evolution LTE system compatible carrier wave, in LTE system frame structure, using part subframe as expansion sub-frame,
The expansion sub-frame includes multiple novel subframes, and determines the uplink-downlink configuration of the multiple novel subframe.
Preferably, the point alignment of the starting point of first novel subframe in the expansion sub-frame and the expansion sub-frame；
Alternatively, being provided between the starting point and the starting point of the expansion sub-frame of first novel subframe in the expansion sub-frame
First protection interval.
Preferably, when the terminal of the last one novel subframe in the expansion sub-frame and the terminal of the expansion sub-frame can not
When alignment, second is provided between the terminal of the last one novel subframe and the terminal of the expansion sub-frame in the expansion sub-frame
Protection interval.
Preferably, the frame structure determination unit 11, is specifically used for：
For non-long term evolution LTE system compatible carrier wave, the energy reported according to business data transmission demand and/or the UE
Force information determines the length of the novel subframe in each frame and the uplink-downlink configuration of novel subframe.
Preferably, same frame includes the novel subframe of different lengths.
Preferably, in the frame structure, the novel subframe of downlink and the novel sub-frame interval arrangement of uplink.
Preferably, the transmission unit is additionally operable to：The subframe configuration information of novel subframe is notified to the UE.
Preferably, the transmission unit 12 is additionally operable to：
According to volume of transmitted data and delay requirement, the subframe configuration information of the novel subframe is adjusted, and will be adjusted
Subframe configuration information after whole is notified to the UE.
Preferably, the transmission unit 12 is additionally operable to：
Using next novel subframe at the end of data transmission and processing as feedback subframe, feedback data transmission process result；
And/or
Next novel subframe after feedback signaling will have been handled, and to be set as transmission direction identical with initial transmission direction
Subframe is retransmitted, data re-transmission is carried out.
Preferably, the data transmission device can be base station.
Referring to Fig. 7, in the sides UE, another kind data transmission device provided in an embodiment of the present invention, including：
Frame structure determination unit 21 needs the frame structure used when carrying out data transmission with network side for determining；Wherein,
The frame structure includes at least one novel subframe, which includes n symbol, when what the novel subframe included follows
When ring prefix CP is short CP, n<14；When the CP that the novel subframe includes is long CP, n<12；
Transmission unit 22, for carrying out data transmission according between the frame structure and the network side.
Preferably, the frame structure determination unit 21, is specifically used for：
Receive the subframe configuration information for the novel subframe that the network side is sent；
According to the subframe configuration information for the novel subframe that the network side is sent, determines and carry out data biography with the network side
The frame structure used is needed when defeated.
Preferably, the transmission unit 22, is additionally operable to determine and network side progress data in the frame structure determination unit
Before needing the frame structure used when transmission, report the ability information of the UE where described device to the network side.
Preferably, the transmission unit 22, is additionally operable to：
Receive the subframe configuration information after the subframe configuration information to novel subframe that the network side is sent is adjusted；
According to the subframe configuration information after the adjustment, redefines and need to adopt when with the network side carrying out data transmission
Frame structure；
It redefines the when of carrying out data transmission with the network side according to described and needs the frame structure that uses, with the network
Carry out data transmission between side.
Preferably, the transmission unit 22, is additionally operable to：
Using next novel subframe at the end of data transmission and processing as feedback subframe, feedback data transmission process result；
And/or
Next novel subframe after feedback signaling will have been handled, and to be set as transmission direction identical with initial transmission direction
Subframe is retransmitted, data re-transmission is carried out.
Referring to Fig. 8, in network side, another kind data transmission device provided in an embodiment of the present invention, including：
Processor 500 executes following process for reading the program in memory 520：
Determine that the when of carrying out data transmission with user equipment (UE) needs the frame structure used；Wherein, the frame structure includes
At least one novel subframe, the novel subframe include n symbol, when the cyclic prefix CP that the novel subframe includes is short CP
When, n<14；When the CP that the novel subframe includes is long CP, n<12；
According to the frame structure by carrying out data transmission between transceiver 510 and the UE.
Transceiver 510, for sending and receiving data under control of the processor 500.
When needing the frame structure used when processor 500 determines and user equipment (UE) carries out data transmission, it is specifically used for：
For long term evolution LTE system compatible carrier wave, in LTE system frame structure, using part subframe as expansion sub-frame,
The expansion sub-frame includes multiple novel subframes, and determines the uplink-downlink configuration of the multiple novel subframe.
The starting point of first novel subframe in the expansion sub-frame plays point alignment with the expansion sub-frame；
Alternatively, being provided between the starting point and the starting point of the expansion sub-frame of first novel subframe in the expansion sub-frame
First protection interval.
When the terminal of the last one novel subframe in the expansion sub-frame can not be aligned with the terminal of the expansion sub-frame,
It is provided between the second protection between the terminal of the last one novel subframe and the terminal of the expansion sub-frame in the expansion sub-frame
Every.
When needing the frame structure used when processor 500 determines and user equipment (UE) carries out data transmission, specifically it is additionally operable to：
For non-long term evolution LTE system compatible carrier wave, the energy reported according to business data transmission demand and/or the UE
Force information determines the length of the novel subframe in each frame and the uplink-downlink configuration of novel subframe.
Same frame includes the novel subframe of different lengths.
In the frame structure, the novel subframe of downlink and the novel sub-frame interval arrangement of uplink.
Processor 500 is additionally operable to：
The subframe configuration information of novel subframe is notified to the UE by transceiver 510.
Processor 500 is additionally operable to：
According to volume of transmitted data and delay requirement, the subframe configuration information of the novel subframe is adjusted, and passes through
Transceiver 510 notifies the subframe configuration information after adjustment to the UE.
Processor 500 is additionally operable to：
Using next novel subframe at the end of data transmission and processing as feedback subframe, pass through 510 feedback data of transceiver
Transmission process result；And/or
Next novel subframe after feedback signaling will have been handled, and to be set as transmission direction identical with initial transmission direction
Subframe is retransmitted, data re-transmission is carried out by transceiver 510.
Wherein, in fig. 8, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor 500
The various circuits for the memory that the one or more processors and memory 520 of representative represent link together.Bus architecture is also
Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can be linked together, these are all
It is it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 510 can
To be multiple element, that is, includes transmitter and transceiver, provide for passing
The unit communicated with various other devices on defeated medium.Processor 500 is responsible for bus architecture and common place
Reason, memory 520 can store the used data when executing operation of processor 500.
Preferably, the data transmission device can be base station.
Referring to Fig. 9, in the sides UE, another kind data transmission device provided in an embodiment of the present invention, including：
Processor 600 executes following process for reading the program in memory 620：
Determine that the when of carrying out data transmission with network side needs the frame structure used；Wherein, the frame structure includes at least
One novel subframe, the novel subframe include n symbol, when the cyclic prefix CP that the novel subframe includes is short CP, n<
14；When the CP that the novel subframe includes is long CP, n<12；
According to the frame structure by carrying out data transmission between transceiver 610 and the network side.
Transceiver 610, for sending and receiving data under the control of processor 600.
When needing the frame structure used when processor 600 determines and network side carries out data transmission, it is specifically used for：
The subframe configuration information for the novel subframe that the network side is sent is received by transceiver 610；
According to the subframe configuration information for the novel subframe that the network side is sent, determines and carry out data biography with the network side
The frame structure used is needed when defeated.
Processor 600 is additionally operable to before determining that the when of carrying out data transmission with network side needs the frame structure used：
Report the ability information of the UE where the device to the network side by transceiver 610.
Processor 600 is additionally operable to：
It is received after the subframe configuration information to novel subframe that the network side is sent is adjusted by transceiver 610
Subframe configuration information；
According to the subframe configuration information after the adjustment, redefines and need to adopt when with the network side carrying out data transmission
Frame structure；
It redefines the when of carrying out data transmission with the network side according to described and needs the frame structure that uses, pass through transceiver
Carry out data transmission between 610 and the network side.
Processor 600 is additionally operable to：
Using next novel subframe at the end of data transmission and processing as feedback subframe, pass through 610 feedback data of transceiver
Transmission process result；And/or
Next novel subframe after feedback signaling will have been handled, and to be set as transmission direction identical with initial transmission direction
Subframe is retransmitted, data re-transmission is carried out by transceiver 610.
Wherein, in fig.9, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor 600
The various circuits for the memory that the one or more processors and memory 620 of representative represent link together.Bus architecture is also
Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can be linked together, these are all
It is it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 610 can
To be multiple element, that is, includes transmitter and receiver, the list for being communicated over a transmission medium with various other devices is provided
Member.For different user equipmenies, user interface 630, which can also be, external the interface for needing equipment is inscribed, and connection is set
Standby including but not limited to keypad, display, loud speaker, microphone, control stick etc..
Processor 600 is responsible for bus architecture and common processing, and memory 620 can store processor 600 and hold
Used data when row operation.
The data transmission device of network side described in the above embodiment of the present invention can be base station, relay node
(Relay), base station therein include macro base station (Macro), micro-base station (Micro), femto base station (Pico), Home eNodeB or
For femto base station (Femto) etc. and other possible wireless access point (AP) using tdd mode.
In conclusion the embodiment of the present invention is by providing a kind of smaller novel subframe of length, it is new using this to reduce
The propagation delay time of the data transmission of type subframe.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, the present invention can be used in one or more wherein include computer usable program code computer
The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.)
Formula.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (28)
1. a kind of data transmission method, which is characterized in that this method includes：
Determine that the when of carrying out data transmission with user equipment (UE) needs the frame structure used；Wherein, the frame structure includes at least
One novel subframe, the novel subframe include n symbol, when the cyclic prefix CP that the novel subframe includes is short CP, n<
14；When the CP that the novel subframe includes is long CP, n<12；
Carry out data transmission according between the frame structure and the UE；
Wherein it is determined that the frame structure used is needed when carrying out data transmission with user equipment (UE), including：
For long term evolution LTE system compatible carrier wave, in LTE system frame structure, using part subframe as expansion sub-frame, the expansion
It includes multiple novel subframes to open up subframe, and determines the uplink-downlink configuration of the multiple novel subframe.
2. according to the method described in claim 1, it is characterized in that, the starting point of first novel subframe in the expansion sub-frame
With the point alignment of the expansion sub-frame；
Alternatively, being provided with first between the starting point and the starting point of the expansion sub-frame of first novel subframe in the expansion sub-frame
Protection interval.
3. according to the method described in claim 2, it is characterized in that, when the last one novel subframe in the expansion sub-frame
When terminal can not be aligned with the terminal of the expansion sub-frame, terminal and the expansion of the last one novel subframe in the expansion sub-frame
It is provided with the second protection interval between the terminal of exhibition subframe.
4. according to the method described in claim 1, it is characterized in that, determining that the when of carrying out data transmission with user equipment (UE) needs to adopt
Frame structure, including：
For non-long term evolution LTE system compatible carrier wave, believed according to the ability that business data transmission demand and/or the UE are reported
Breath, determines the length of the novel subframe in each frame and the uplink-downlink configuration of novel subframe.
5. according to the method described in claim 4, it is characterized in that, same frame includes the novel subframe of different lengths.
6. according to the method described in claim 1, it is characterized in that, in the frame structure, the novel subframe of downlink and uplink are novel
Sub-frame interval arranges.
7. according to the method described in any claims of claim 1-6, which is characterized in that this method further includes：
The subframe configuration information of novel subframe is notified to the UE.
8. the method according to the description of claim 7 is characterized in that this method further includes：
According to volume of transmitted data and delay requirement, the subframe configuration information of the novel subframe is adjusted, and will be after adjustment
Subframe configuration information notify to the UE.
9. according to the method described in claim 1, it is characterized in that, this method further includes：
Using next novel subframe at the end of data transmission and processing as feedback subframe, feedback data transmission process result；With/
Or,
Next novel subframe after feedback signaling will have been handled and be set as transmission direction re-transmission identical with initial transmission direction
Subframe carries out data re-transmission.
10. a kind of data transmission method, which is characterized in that this method includes：
The frame structure used is needed when user equipment (UE) determines and network side carries out data transmission；Wherein, it is wrapped in the frame structure
At least one novel subframe is included, which includes n symbol, when the cyclic prefix CP that the novel subframe includes is short CP
When, n<14；When the CP that the novel subframe includes is long CP, n<12；
The UE carries out data transmission according between the frame structure and the network side；
Wherein, the frame structure, including：
For long term evolution LTE system compatible carrier wave, in LTE system frame structure, using part subframe as expansion sub-frame, the expansion
It includes multiple novel subframes to open up subframe, and determines the uplink-downlink configuration of the multiple novel subframe.
11. according to the method described in claim 10, it is characterized in that, UE determinations need when carrying out data transmission with network side
The frame structure to be used, including：
The UE receives the subframe configuration information for the novel subframe that the network side is sent；
The subframe configuration information for the novel subframe that the UE is sent according to the network side determines and carries out data with the network side
The frame structure used is needed when transmission.
12. the method according to claim 10 or 11, which is characterized in that the UE determinations carry out data transmission with network side
When need the frame structure that uses before, this method further includes：
The UE reports the ability information of itself to the network side.
13. according to the method described in claim 10, it is characterized in that, this method further includes：
The UE receives the sub-frame configuration letter after the subframe configuration information to novel subframe that the network side is sent is adjusted
Breath；
According to the subframe configuration information after the adjustment, redefine the when of carrying out data transmission with the network side needs the UE
The frame structure of use；
The UE redefines the when of carrying out data transmission with the network side and needs the frame structure that uses according to described, with the net
Network carries out data transmission between side.
14. according to the method described in claim 10, it is characterized in that, this method further includes：
The UE is using next novel subframe at the end of data transmission and processing as feedback subframe, feedback data transmission process knot
Fruit；And/or
The UE will handle feedback signaling after next novel subframe to be set as transmission direction identical as initial transmission direction
Re-transmission subframe, carry out data re-transmission.
15. a kind of data transmission device, which is characterized in that the device includes：
Frame structure determination unit needs the frame structure used when carrying out data transmission with user equipment (UE) for determining；Wherein, institute
It includes at least one novel subframe to state frame structure, which includes n symbol, when the cycle that the novel subframe includes
When prefix CP is short CP, n<14；When the CP that the novel subframe includes is long CP, n<12；
Transmission unit, for carrying out data transmission according between the frame structure and the UE；
Wherein, the frame structure determination unit, is specifically used for：
For long term evolution LTE system compatible carrier wave, in LTE system frame structure, using part subframe as expansion sub-frame, the expansion
It includes multiple novel subframes to open up subframe, and determines the uplink-downlink configuration of the multiple novel subframe.
16. device according to claim 15, which is characterized in that of first novel subframe in the expansion sub-frame
Point plays point alignment with the expansion sub-frame；
Alternatively, being provided with first between the starting point and the starting point of the expansion sub-frame of first novel subframe in the expansion sub-frame
Protection interval.
17. device according to claim 16, which is characterized in that when the last one novel subframe in the expansion sub-frame
Terminal when can not be aligned with the terminal of the expansion sub-frame, the terminal of the last one novel subframe in the expansion sub-frame with should
The second protection interval is provided between the terminal of expansion sub-frame.
18. device according to claim 15, which is characterized in that the frame structure determination unit is specifically used for：
For non-long term evolution LTE system compatible carrier wave, believed according to the ability that business data transmission demand and/or the UE are reported
Breath, determines the length of the novel subframe in each frame and the uplink-downlink configuration of novel subframe.
19. device according to claim 18, which is characterized in that same frame includes the novel subframe of different lengths.
20. device according to claim 15, which is characterized in that in the frame structure, the novel subframe of downlink and uplink are new
Type sub-frame interval arranges.
21. according to the device described in any claims of claim 15-20, which is characterized in that the transmission unit is additionally operable to：It will be new
The subframe configuration information of type subframe is notified to the UE.
22. device according to claim 21, which is characterized in that the transmission unit is additionally operable to：
According to volume of transmitted data and delay requirement, the subframe configuration information of the novel subframe is adjusted, and will be after adjustment
Subframe configuration information notify to the UE.
23. device according to claim 15, which is characterized in that the transmission unit is additionally operable to：
Using next novel subframe at the end of data transmission and processing as feedback subframe, feedback data transmission process result；With/
Or,
Next novel subframe after feedback signaling will have been handled and be set as transmission direction re-transmission identical with initial transmission direction
Subframe carries out data re-transmission.
24. a kind of data transmission device, which is characterized in that the device includes：
Frame structure determination unit needs the frame structure used when carrying out data transmission with network side for determining；Wherein, the frame
Structure includes at least one novel subframe, which includes n symbol, when the cyclic prefix that the novel subframe includes
When CP is short CP, n<14；When the CP that the novel subframe includes is long CP, n<12；
Transmission unit, for carrying out data transmission according between the frame structure and the network side；
Wherein, the frame structure, including：
For long term evolution LTE system compatible carrier wave, in LTE system frame structure, using part subframe as expansion sub-frame, the expansion
It includes multiple novel subframes to open up subframe, and determines the uplink-downlink configuration of the multiple novel subframe.
25. device according to claim 24, which is characterized in that the frame structure determination unit is specifically used for：
Receive the subframe configuration information for the novel subframe that the network side is sent；
According to the subframe configuration information for the novel subframe that the network side is sent, when the determining and network side carries out data transmission
Need the frame structure used.
26. the device according to claim 24 or 25, which is characterized in that the transmission unit is additionally operable in the frame knot
Before needing the frame structure used when structure determination unit determines and network side carries out data transmission, the UE where described device is reported
Ability information give the network side.
27. device according to claim 24, which is characterized in that the transmission unit is additionally operable to：
Receive the subframe configuration information after the subframe configuration information to novel subframe that the network side is sent is adjusted；
According to the subframe configuration information after the adjustment, redefine what needs when carrying out data transmission with the network side used
Frame structure；
Redefine the when of carrying out data transmission with the network side according to described and need the frame structure that uses, with the network side it
Between carry out data transmission.
28. device according to claim 24, which is characterized in that the transmission unit is additionally operable to：
Using next novel subframe at the end of data transmission and processing as feedback subframe, feedback data transmission process result；With/
Or,
Next novel subframe after feedback signaling will have been handled and be set as transmission direction re-transmission identical with initial transmission direction
Subframe carries out data re-transmission.
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| CN201410555110.4A CN105577320B (en) | 2014-10-17 | 2014-10-17 | A kind of data transmission method and device |
| PCT/CN2015/090051 WO2016058469A1 (en) | 2014-10-17 | 2015-09-18 | Data transmission method and device |
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| WO2018027807A1 (en) * | 2016-08-11 | 2018-02-15 | 富士通株式会社 | Resource scheduling method, apparatus and communication system |
| WO2018027809A1 (en) * | 2016-08-11 | 2018-02-15 | 富士通株式会社 | Resource scheduling method, apparatus and communication system |
| KR102238467B1 (en) * | 2016-09-28 | 2021-04-08 | 후아웨이 테크놀러지 컴퍼니 리미티드 | Method for feeding back downlink data and ACK/NACK information for related devices |
| CN106533616B (en) * | 2016-11-01 | 2017-10-27 | 深圳职业技术学院 | A kind of reliable data transmission method |
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| CN102790745A (en) * | 2007-01-10 | 2012-11-21 | 日本电气株式会社 | Transmission of mbms in an ofdm communication system |
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| WO2016058469A1 (en) | 2016-04-21 |
| CN105577320A (en) | 2016-05-11 |
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