CN106161312B - A kind of data transmission method and device - Google Patents
A kind of data transmission method and device Download PDFInfo
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- CN106161312B CN106161312B CN201510130694.5A CN201510130694A CN106161312B CN 106161312 B CN106161312 B CN 106161312B CN 201510130694 A CN201510130694 A CN 201510130694A CN 106161312 B CN106161312 B CN 106161312B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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Abstract
The present invention relates to wireless communication technology field more particularly to a kind of data transmission methods and device, to solve the problems, such as that existing transmission mode is not supported to carry out data transmission in the imperfect subframe of unauthorized frequency range.Data transmission method provided in an embodiment of the present invention includes: to control information DCI for user equipment (UE) configurating downlink；The DCI is used to indicate the UE and obtains the user data that cell is transmitted in the imperfect subframe of the unauthorized frequency range of occupancy；The DCI of configuration is sent to the UE, and transmits user data to the UE in the imperfect subframe of DCI instruction.The embodiment of the present invention takes full advantage of the imperfect subframe of the unauthorized frequency range of cell occupancy, realizes the data transmission in the imperfect subframe, improves sub-frame resources utilization rate.
Description
Technical field
The present invention relates to wireless communication technology field more particularly to a kind of data transmission methods and device.
Background technique
With the surge of data traffic in mobile Internet, major operation commercial city is being explored in unauthorized frequency range using length
Thus phase evolution (Long Term Evolution, LTE) technology has developed a kind of entitled auxiliary authorization access (License-
Assisted Access, LAA) technology.
Due to unauthorized frequency range be for all operation commercial cities it is open, different operators right having the same is non-
LTE is disposed in authorized spectrum band.In order to make different system or different operator's fair competition using unauthorized frequency range, in auxiliary authorization access
Listem-before-talk (listen before talk, LBT) machine is introduced in (License-assisted Access, LAA) technology
System reserves a period of time first to perceive to carrier wave, carries out clear channel assessment (CCA) that is, before carrying out data transmission every time
(Clear Channel Assessment, CCA) process, can be and every with just starting to carry out data transmission when perceiving carrier wave
The secondary limitation for carrying out data transmission having maximum time.
The minimum thread of LTE system is a subframe (1ms), therefore in existing LTE system, control channel is all
It is for complete subframe designs.Preceding 1~3 orthogonal frequency division multiplexing (Orthogonal Frequency of each subframe
Division Multiplexing, OFDM) symbol is for carrying out Physical Downlink Control Channel (Physical Downlink
Control Channel, PDCCH) transmission.And any time in subframe can occur for CCA, duration minimum 20us,
Therefore, the introducing of CCA can bring imperfect subframe problem.As shown in Fig. 1 (a), cell is carried by CCA process, competition to available
The time location of wave is not sub-frame boundary, and at this moment, cell needs start to carry out control information and data in imperfect subframe
Transmission.In addition, the subframe finally carried out data transmission is also possible to since LBT mechanism has the limitation of maximum transmitted duration
It is imperfect subframe, as shown in Fig. 1 (b).
Obviously, existing transmission mode is not supported to carry out data transmission in the imperfect subframe of unauthorized frequency range.
Summary of the invention
The embodiment of the present invention provides a kind of data transmission method and device, does not support to solve existing transmission mode
The problem of carrying out data transmission in the imperfect subframe of unauthorized frequency range.
The embodiment of the present invention provides a kind of data transmission method, comprising:
Information DCI is controlled for user equipment (UE) configurating downlink；The DCI is used to indicate the UE and obtains cell in the non-of occupancy
The user data transmitted in the imperfect subframe of authorized spectrum band；
The DCI of configuration is sent to the UE, and is transmitted and used to the UE in the imperfect subframe of DCI instruction
User data.
Optionally, the DCI of configuration is sent to the UE, comprising:
In the complete subframe of the unauthorized frequency range of occupancy, the DCI of configuration is sent to the UE.
Optionally, the information comprising subframe scheduled in the instruction DCI in the DCI, wherein son scheduled in the DCI
Frame includes the complete subframe where the DCI, and adjacent the first imperfect subframe of the complete subframe where with the DCI and/or
Second imperfect subframe；Wherein, the described first imperfect subframe is the subframe before the complete subframe where the DCI, described
Second imperfect subframe is the subframe after the complete subframe where the DCI.
Optionally, the DCI of configuration is sent to the UE, and to described in the imperfect subframe of DCI instruction
UE transmits user data, comprising:
If subframe scheduled in the DCI includes the described first imperfect subframe, the DCI of configuration is sent to the UE
Before, user data is transmitted to the UE in the described first imperfect subframe；And/or
If subframe scheduled in the DCI includes the described second imperfect subframe, the DCI of configuration is sent to the UE
Later, user data is transmitted to the UE in the described second imperfect subframe.
Optionally, if subframe scheduled in the DCI includes the described first imperfect subframe；Then configuration is sent to the UE
Before the DCI, further includes:
Placeholder is sent to the UE in the described first imperfect subframe；
Wherein, include the indicating bit for indicating the time location of the placeholder end of transmission in the placeholder, be used to indicate
The UE caches the received time location from the placeholder end of transmission to the end position of the first imperfect subframe
All data, and the DCI based on receipt of subsequent extracts the user data from all data of caching.
Optionally, the initial time of user data is also transmitted in the DCI in the first imperfect subframe comprising instruction
The information of position.
Optionally, the orthogonal frequency of user data is also transmitted in the DCI in the first imperfect subframe comprising instruction
It is multiplexed the information of OFDM symbol number；Alternatively, the OFDM symbol number for transmitting user data in the first imperfect subframe is 14-
D1, d1 are the start time position that user data is transmitted in the first imperfect subframe；Alternatively, in the first imperfect subframe
The OFDM symbol number of interior transmission user data is default value.
It optionally, also include to refer in the DCI if subframe scheduled in the DCI includes the described second imperfect subframe
Show the information that the orthogonal frequency division multiplex OFDM symbolic number of user data is transmitted in the second imperfect subframe；Alternatively, this
The OFDM symbol number of transmission user data is default value in two imperfect subframes.
Optionally, the DCI of configuration is sent to the UE, comprising:
In the imperfect subframe, the DCI of configuration is sent to the UE.
Optionally, the method also includes:
Based on the start time position for sending the DCI, cell specific reference signal CRS is sent, so that the UE is based on
The CRS demodulates received DCI.
Optionally, before the DCI that configuration is sent to the UE, further includes:
In the imperfect subframe, placeholder is sent to the UE, includes the instruction transmission DCI in the placeholder
Start time position indicating bit.
Optionally, the orthogonal frequency division multiplexing of user data is transmitted in the DCI in the imperfect subframe comprising instruction
The information of OFDM symbol number；Alternatively, transmitting the OFDM symbol number of user data to the UE in the imperfect subframe as 14-
D2-P, d2 are the start time position for sending the DCI, and P is the OFDM symbol number that DCI is transmitted in the imperfect subframe；
Alternatively, transmitting the OFDM symbol number of user data to the UE in the imperfect subframe as default value.
Optionally, if transmitting the OFDM symbol number of user data to the UE in the imperfect subframe as default value
N, then the OFDM symbol number that DCI is transmitted in the imperfect subframe is 14-d2-N.
Another embodiment of the present invention provides a kind of data transmission method, comprising:
Receive the Downlink Control Information DCI that cell is sent；
Based on the DCI, the user data that cell is transmitted in the imperfect subframe of the unauthorized frequency range of occupancy is obtained.
Optionally, the DCI that cell is sent is received, comprising:
Receive the DCI that cell is sent in the complete subframe of the unauthorized frequency range of occupancy.
Optionally, the information comprising subframe scheduled in the instruction DCI in the DCI, wherein son scheduled in the DCI
Frame includes the complete subframe where the DCI, and adjacent the first imperfect subframe of the complete subframe where with the DCI and/or
Second imperfect subframe；Wherein, the described first imperfect subframe is the subframe before the complete subframe where the DCI, described
Second imperfect subframe is the subframe after the complete subframe where the DCI.
Optionally, it is based on the DCI, obtains the user that cell is transmitted in the imperfect subframe of the unauthorized frequency range of occupancy
Data, comprising:
Based on the DCI, mentioned from all data that the cell of caching is transmitted in the described first imperfect subframe
Take user data；And/or
Based on the DCI, the user data that the cell is transmitted in the described second imperfect subframe is received.
Optionally, before the DCI for receiving cell transmission, further includes:
Receive the placeholder that cell is sent in the described first imperfect subframe；Wherein, instruction is included in the placeholder
The indicating bit of the time location of the placeholder end of transmission；
Cache the received time location from the placeholder end of transmission to the described first imperfect subframe end position
Between all data.
Optionally, the DCI that cell is sent is received, comprising:
Receive the DCI that cell is sent in the imperfect subframe.
Optionally, the user data that cell is transmitted in the imperfect subframe is obtained, comprising:
Based on the DCI, the user data that the cell is transmitted in the imperfect subframe is received.
Optionally, the method also includes:
The start time position of the DCI is sent based on cell, receives cell specific reference signal CRS；
Received DCI is demodulated based on the CRS.
Optionally, before receiving the DCI, further includes:
The placeholder that cell is sent in the imperfect subframe is received, includes instruction transmission DCI's in the placeholder
The indicating bit of start time position.
The embodiment of the present invention provides a kind of data transmission device, comprising:
Configuration module, for controlling information DCI for user equipment (UE) configurating downlink；The DCI is used to indicate UE acquisition
The user data that cell is transmitted in the imperfect subframe of the unauthorized frequency range of occupancy；
Sending module, for sending the DCI of configuration to the UE, and in the imperfect subframe of DCI instruction
User data is transmitted to the UE.
Another embodiment of the present invention provides a kind of data transmission devices, comprising:
Receiving module, for receiving the Downlink Control Information DCI of cell transmission；
Module is obtained, for being based on the DCI, cell is obtained and is transmitted in the imperfect subframe of the unauthorized frequency range of occupancy
User data.
Another embodiment of the embodiment of the present invention provides a kind of data transmission method, comprising:
The transmission of configuration information of information DCI is controlled for user equipment (UE) configurating downlink；The DCI is used to indicate UE reception
The user data that cell is transmitted in the imperfect subframe of the unauthorized frequency range of occupancy；The transmission of configuration information includes that cell exists
The start time position of the DCI is sent in the imperfect subframe；
The transmission of configuration information is sent to the UE, and the transmission of configuration information based on the DCI, in the non-of occupancy
The DCI is sent in the imperfect subframe of authorized spectrum band.
Another embodiment of the present invention provides a kind of data transmission methods, comprising:
Receive the transmission of configuration information for the Downlink Control Information DCI that base station is sent；It is small that the DCI is used to indicate UE reception
The user data that area is transmitted in the imperfect subframe of the unauthorized frequency range of occupancy；The transmission of configuration information is included in cell and exists
The start time position of the DCI is sent in the imperfect subframe；
Based on the transmission of configuration information of the DCI, receives cell and sent out in the imperfect subframe of the unauthorized frequency range of occupancy
The DCI sent.
Another embodiment of the present invention provides a kind of data transmission devices, comprising:
Configuration module, for controlling the transmission of configuration information of information DCI for user equipment (UE) configurating downlink；The DCI is used
In the user data for indicating that UE reception cell is transmitted in the imperfect subframe of the unauthorized frequency range of occupancy；The transmission configuration
Information includes the start time position that cell sends the DCI in the imperfect subframe；
Sending module for the transmission of configuration information to be sent to the UE, and is believed based on the transmission configuration of the DCI
Breath, sends the DCI in the imperfect subframe of the unauthorized frequency range of occupancy.
Another embodiment of the present invention provides a kind of data transmission devices, comprising:
First receiving module, the transmission of configuration information of the Downlink Control Information DCI for receiving base station transmission；The DCI
It is used to indicate the UE and receives the user data that cell is transmitted in the imperfect subframe of the unauthorized frequency range of occupancy；The transmission is matched
Confidence breath includes the start time position for sending the DCI in the imperfect subframe in cell；
Second receiving module receives cell in the unauthorized frequency range of occupancy for the transmission of configuration information based on the DCI
Imperfect subframe in send the DCI.
Using a kind of above-mentioned embodiment, by configuring and Downlink Control Information DCI can be sent to UE, to indicate that UE is obtained
The user data that cell is transmitted in the imperfect subframe of the unauthorized frequency range of occupancy.Using above-mentioned another embodiment, Ke Yitong
It crosses configuration and sends the transmission of configuration information of DCI to UE, to indicate the imperfect subframe of unauthorized frequency range that UE is occupied in cell
Interior reception DCI, and then the user data that cell is transmitted in the imperfect subframe is obtained according to the DCI.To which the present invention is implemented
Example can support cell to carry out user data transmission in the imperfect subframe of the unauthorized frequency range of occupancy, take full advantage of cell
The imperfect subframe of the unauthorized frequency range occupied, improves sub-frame resources utilization rate.
Detailed description of the invention
Fig. 1 (a) is one of the imperfect subframe schematic diagram of unauthorized frequency range that cell occupies；
Fig. 1 (b) is the two of the imperfect subframe schematic diagram for the unauthorized frequency range that cell occupies；
Fig. 2 is the data transmission method flow chart that the embodiment of the present invention one provides；
Fig. 3 (a) is that transmission can dispatch one of the schematic diagram of DCI of imperfect subframe in complete subframe；
Fig. 3 (b) is the two of the schematic diagram for the DCI that transmission can dispatch imperfect subframe in complete subframe；
Fig. 4 is data transmission method flow chart provided by Embodiment 2 of the present invention；
Fig. 5 is the data transmission method flow chart that the embodiment of the present invention three provides；
Fig. 6 is the data transmission method flow chart that the embodiment of the present invention four provides；
Fig. 7 is the data transmission method flow chart that the embodiment of the present invention five provides；
Fig. 8 is the data transmission method flow chart that the embodiment of the present invention six provides；
Fig. 9 is the data transmission device structural schematic diagram that the embodiment of the present invention seven provides；
Figure 10 is the data transmission device structural schematic diagram that the embodiment of the present invention eight provides；
Figure 11 is the data transmission device structural schematic diagram that the embodiment of the present invention nine provides；
Figure 12 is the data transmission device structural schematic diagram that the embodiment of the present invention ten provides.
Specific embodiment
In the embodiment of the present invention, indicate that UE obtains cell and awards in the non-of occupancy by the Downlink Control Information DCI configured
The user data transmitted in the imperfect subframe of frequency range is weighed, the imperfect son for the unauthorized frequency range that cell can be made full use of to occupy
Frame improves sub-frame resources utilization rate.
The embodiment of the present invention is described in further detail with reference to the accompanying drawings of the specification.
Embodiment one
In the embodiment one, in the complete subframe of the unauthorized frequency range of occupancy, DCI is sent to UE, using complete
The DCI that sends in subframe dispatches imperfect subframe.
As shown in Fig. 2, the data transmission method flow chart provided for the embodiment of the present invention one, comprising the following steps:
S201: information (Downlink Control is controlled for user equipment (User Equipment, UE) configurating downlink
Information, DCI)；The DCI is used to indicate the UE and obtains cell in the imperfect subframe of the unauthorized frequency range of occupancy
The user data of transmission.
The executing subject of the embodiment of the present invention one is network side equipment, is specifically as follows base station (or cell).
S202: in the complete subframe of the unauthorized frequency range of occupancy, the DCI of configuration is sent to the UE, and in institute
It states in the imperfect subframe of DCI instruction and transmits user data to the UE.
In the embodiment one, DCI is transmitted in complete subframe, which can be at the 1st~3 of complete subframe
It is transmitted on (Orthogonal Frequency Division Multiplexing, OFDM) symbol.The DCI is in addition to that can dispatch
Outside complete subframe where itself, it can also dispatch adjacent with the complete subframe, before or after the complete subframe
Imperfect subframe；Here, that imperfect subframe adjacent with the complete subframe, before the complete subframe is known as first is endless
Imperfect subframe adjacent with the complete subframe, after the complete subframe is known as the second imperfect subframe by whole subframe.Such as
Fig. 3 (a) and (b) are shown, in actual implementation, can indicate the DCI using 2 bits (bit) indicating bit in the DCI of transmission
Scheduled subframe identifies the place the DCI using indicating bit 1 for example, identifying the first imperfect subframe using indicating bit 0
Complete subframe, the second imperfect subframe is identified using indicating bit 2.
In the specific implementation process, it if subframe scheduled in the DCI includes the first imperfect subframe, is sent to the UE
Before the DCI of configuration, user data is transmitted to the UE in the described first imperfect subframe；And/or if DCI institute
The subframe of scheduling includes the described second imperfect subframe, then after the DCI for sending configuration to the UE, not described second
User data is transmitted to the UE in complete subframe.
Include the case where the first imperfect subframe for subframe scheduled in DCI, be related to following instruction content:
1) starting cache location is indicated by placeholder:
Here, can also be comprising synchronization signal etc., as described below comprising the signal for busy channel in placeholder, it should
It can also include the indicating bit for indicating the time location of the placeholder end of transmission in placeholder.
Occur before transmitting DCI due to transmitting user data in the first imperfect subframe, UE needs to cache
Received all data before receiving DCI, here, all data of UE caching are other than including user data, it is also possible to
Including other non-user data such as synchronization signal, auxiliary information.It is receiving the DCI and then is being based on the DCI, from caching
The user data of needs is extracted in all data.In order to realize that the data buffer storage before receiving DCI, UE needs are known at this
Which character position of imperfect subframe starts to cache.Based on this, in specific implementation, before sending the DCI to UE, also wrap
It includes: sending placeholder to the UE in the described first imperfect subframe；Wherein, comprising indicating the placeholder in the placeholder
The indicating bit of the time location of the end of transmission is used to indicate the UE and caches the received when meta position from the placeholder end of transmission
All data between the end position of the first imperfect subframe are set, and the DCI based on receipt of subsequent, from caching
The user data is extracted in all data.
2) start time position of transmission user data is indicated in DCI:
It has been cached in UE and after received all data, has needed to know in the first imperfect son in the first imperfect subframe
The start time position of transmission user data and end time position or the OFDM symbol number for transmitting user data in frame.This
In first illustrate the instruction of start time position: specifically, fractional_subframe_ can be increased in DCI
Datasymb_position field, when next dominant instruction UE transmits the starting of user data in the first imperfect subframe
Between position.
Optionally, which is also possible to preset position.
In specific implementation, can the time span in advance to available imperfect subframe be defined, only not
When the time span of complete subframe is greater than preset value, the imperfect sub-frame transmission user data is just utilized.In this case, may be used
To be preset in the start time position for transmitting user data in the imperfect subframe, for example, the starting of Preset Transfer user data
Time location is the character position for being separated by L1 OFDM symbol with the end position of the imperfect subframe, alternatively, Preset Transfer is used
The start time position of user data is the M1 OFDM symbol from the OFDM symbol for starting to transmit placeholder.
3) OFDM symbol number of transmission user data is indicated in DCI:
It is stated that, UE is being cached in the first imperfect subframe after received all data in 2), except this first
In imperfect subframe outside the start time position of transmission user data, it is also necessary to know the end time position of transmission user data
Or OFDM symbol number, the mode of OFDM symbol number is preferably indicated here.
In the specific implementation process, can in DCI it is dominant instruction transmission user data OFDM number, i.e., in the DCI
In comprising instruction in the first imperfect subframe transmit user data orthogonal frequency division multiplex OFDM symbolic number information, such as
Increase fractional_subframe_datasymb_num field, in DCI to indicate the OFDM number of transmission user data；?
Can recessive instruction transmission user data OFDM number, for example transmit in the first imperfect subframe OFDM symbol of user data
Number is 14-d1, and d1 is the start time position that user data is transmitted in the first imperfect subframe；Transmission can also be used
The OFDM number of user data is set as default value N.
In the specific implementation process, existing cell specific reference signal (Cell-specific can be reused
Reference signals, CRS) mode (pattern), i.e., sent in the 1st, 5,8,12 OFDM symbol of subframe
CRS, so that UE is based on the CRS and demodulates received DCI.
Embodiment two
In the embodiment two, in the imperfect subframe for sending user data, corresponding DCI is sent, namely use
The DCI transmitted in the imperfect subframe of the unauthorized frequency range occupied dispatches the user data of this subframe.Here, imperfect subframe
Type include the type as shown in Fig. 1 (a) imperfect subframe (initial position of the imperfect subframe be the imperfect subframe belonging to
Complete subframe non-boundary position, the first imperfect subframe in corresponding embodiment one), and the type as shown in Fig. 1 (b) is not
(end position of the imperfect subframe is the non-boundary position of complete subframe belonging to the imperfect subframe to complete subframe, corresponding
The second imperfect subframe in embodiment one).
As shown in figure 4, being data transmission method flow chart provided by Embodiment 2 of the present invention, comprising the following steps:
S401: DCI is configured for UE；The DCI be used to indicate the UE obtain cell occupancy unauthorized frequency range it is endless
The user data transmitted in whole subframe.
S402: in the imperfect subframe, the DCI of configuration is sent to the UE, and indicate not in the DCI
User data is transmitted to the UE in complete subframe.
For the imperfect subframe of the type as shown in Fig. 1 (a), it is related to the following contents:
Optionally, based on the start time position for sending the DCI, cell CRS is sent, so that the UE is based on described
CRS demodulates received DCI.
In the specific implementation process, existing CRS pattern is sent out in the 1st, 5,8,12 OFDM symbol of subframe
CRS is sent, and in the imperfect subframe of this type, the start time position for sending DCI is not the boundary position of subframe,
DCI conventionally can't be sent in the 1st~3 OFDM symbol, therefore, in order to guarantee the correct demodulation of DCI, needed
The start time position for sending CRS is deviated in the time domain, so that sending start time position (namely the OFDM of CRS
Character position) it is consistent with the start time position for sending DCI.
The embodiment of the present invention two is related to following instruction content:
1) start time position of transmission DCI is indicated by placeholder；
Here, can also be comprising synchronization signal etc., as described below comprising the signal for busy channel in placeholder, it should
The indicating bit of the start time position of instruction transmission DCI can also be included in placeholder.
Specifically, before the DCI that configuration is sent to the UE, further includes:
In the imperfect subframe, placeholder is sent to the UE, includes the instruction transmission DCI in the placeholder
Start time position indicating bit.
In specific implementation, it can transmit DCI's in the imperfect subframe using the placeholder of Nbit come dominant instruction
Start time position.
Optionally, which is also possible to preset position.
In specific implementation, can the time span in advance to available imperfect subframe be defined, only not
When the time span of complete subframe is greater than preset value, the imperfect sub-frame transmission user data is just utilized.In this case, may be used
With the start time position of Preset Transfer DCI, for example, the start time position of Preset Transfer DCI is and the imperfect subframe
End position is separated by the character position of L2 OFDM symbol, alternatively, the start time position of Preset Transfer DCI is from starting to transmit
The M2 OFDM symbol that the OFDM symbol of placeholder rises.
2) pass through the OFDM symbol number of control format indicating bit CFI instruction transmission DCI；
Here, it is indicated described in transmission by control format indicating bit (Control Format Indicatior, CFI)
The OFDM symbol number of DCI.
3) OFDM symbol number of transmission user data is indicated in DCI:
In the specific implementation process, both can in DCI it is dominant instruction transmission user data OFDM number, i.e., described
It transmits the information of the OFDM symbol number of user data in DCI in the imperfect subframe comprising instruction, for example increases in DCI
Fractional_subframe_datasymb_num field, to indicate the OFDM number of transmission user data；Can also recessiveness refer to
Show the OFDM number of transmission user data, for example transmitting the OFDM symbol number of user data in the first imperfect subframe is 14-
D2-P, d2 are the start time position for sending the DCI, and P is the OFDM symbol number that DCI is transmitted in the imperfect subframe
(OFDM symbol number of transmission DCI can indicate in control format indicating bit CFI, be also possible to preset OFDM symbol
Number)；The OFDM number for transmitting user data can also be set as default value N.
Optionally, if transmitting the OFDM symbol number of user data to the UE in the imperfect subframe as default value
N, then in the imperfect subframe transmit DCI OFDM symbol number can recessiveness be designated as 14-d2-N.
For the imperfect subframe of the type as shown in Fig. 1 (b), it is related to the following contents:
1) pass through the OFDM symbol number of control format indicating bit CFI instruction transmission DCI；
Here, as beginning boundary position that the initial position of such imperfect subframe is exactly complete subframe belonging to it
It sets, therefore, the start time position for sending DCI can be identical as the tradition start time position of DCI is sent, as of subframe
Beginning boundary position.
3) OFDM symbol number of transmission user data is indicated in DCI:
Here it is possible to which the OFDM number of user data is transmitted in dominant instruction in DCI, i.e., exist in the DCI comprising instruction
The information of the OFDM symbol number of transmission user data in the imperfect subframe, for example increase fractional_ in DCI
Subframe_datasymb_num field, to indicate the OFDM number of transmission user data；It can also will transmit user data
OFDM number is set as default value N.
Embodiment three
Following embodiment three corresponds to above-described embodiment one, is the execution step of the side UE.Specific implementation is referring to above-described embodiment
One description, which is not described herein again.
As shown in figure 5, the data transmission method flow chart provided for the embodiment of the present invention three, comprising the following steps:
S501: the DCI that cell is sent in the complete subframe of the unauthorized frequency range of occupancy is received；
S502: being based on the DCI, obtains the number of users that cell is transmitted in the imperfect subframe of the unauthorized frequency range of occupancy
According to.
Optionally, the information comprising subframe scheduled in the instruction DCI in the DCI, wherein son scheduled in the DCI
Frame includes the complete subframe where the DCI, and adjacent the first imperfect subframe of the complete subframe where with the DCI and/or
Second imperfect subframe；Wherein, the described first imperfect subframe is the subframe before the complete subframe where the DCI, described
Second imperfect subframe is the subframe after the complete subframe where the DCI.
Optionally, it is based on the DCI, obtains the user that cell is transmitted in the imperfect subframe of the unauthorized frequency range of occupancy
Data, comprising:
Based on the DCI, mentioned from all data that the cell of caching is transmitted in the described first imperfect subframe
Take user data；And/or
Based on the DCI, the user data that the cell is transmitted in the described second imperfect subframe is received.
Optionally, before the DCI for receiving cell transmission, further includes:
Receive the placeholder that cell is sent in the described first imperfect subframe；Wherein, instruction is included in the placeholder
The indicating bit of the time location of the placeholder end of transmission；
Cache the received time location from the placeholder end of transmission to the described first imperfect subframe end position
Between all data.
Optionally, the initial time of user data is also transmitted in the DCI in the first imperfect subframe comprising instruction
The information of position.
Optionally, the orthogonal frequency of user data is also transmitted in the DCI in the first imperfect subframe comprising instruction
It is multiplexed the information of OFDM symbol number；Alternatively, the OFDM symbol number for transmitting user data in the first imperfect subframe is 14-
D1, d1 are the start time position that user data is transmitted in the first imperfect subframe；Alternatively, in the first imperfect subframe
The OFDM symbol number of interior transmission user data is default value.
It optionally, also include to refer in the DCI if subframe scheduled in the DCI includes the described second imperfect subframe
Show the information that the orthogonal frequency division multiplex OFDM symbolic number of user data is transmitted in the second imperfect subframe；Alternatively, this
The OFDM symbol number of transmission user data is default value in two imperfect subframes.
Example IV
Following embodiment four corresponds to above-described embodiment two, is the execution step of the side UE.Specific implementation is referring to above-described embodiment
Two description, which is not described herein again.
As shown in fig. 6, the data transmission method flow chart provided for the embodiment of the present invention four, comprising the following steps:
S601: the DCI that cell is sent in the imperfect subframe of the unauthorized frequency range of occupancy is received.
S602: being based on the DCI, receives the user data that cell is transmitted in the imperfect subframe.
Optionally, the method also includes:
The start time position of the DCI is sent based on cell, receives cell specific reference signal CRS；
Received DCI is demodulated based on the CRS.
Optionally, before receiving the DCI, further includes:
The placeholder that cell is sent in the imperfect subframe is received, includes instruction transmission DCI's in the placeholder
The indicating bit of start time position.
Embodiment five
The configuration for supporting to carry out the DCI of user data transmission in imperfect subframe is described in above-described embodiment one, two
And transmission process, DCI, which is carried out, including the progress DCI transmission in imperfect subframe and in complete subframe transmits two kinds of feelings
Condition.Such case is transmitted for DCI is carried out in the imperfect subframe of the type shown in Fig. 1 (a), conventional transmission mode is compared, removes
It needs to change outside the instruction content that DCI itself includes, it is also necessary to change the transmission of configuration information and the specific ginseng of cell of DCI
Examine the sending time position of signal CRS.It is described further below by embodiment three.In following embodiment, embodiment five is
Based on the description of network side equipment side, embodiment six is the corresponding side UE method flow.
As shown in fig. 7, the data transmission method flow chart provided for the embodiment of the present invention five, comprising the following steps:
S701: the transmission of configuration information of information DCI is controlled for user equipment (UE) configurating downlink；The DCI is used to indicate this
UE receives the user data that cell is transmitted in the imperfect subframe of the unauthorized frequency range of occupancy；The transmission of configuration information includes
Cell sends the start time position of the DCI in the imperfect subframe；
S702: the transmission of configuration information is sent to the UE, and the transmission of configuration information based on the DCI, is being accounted for
The DCI is sent in the imperfect subframe of unauthorized frequency range.
Optionally, the method also includes:
Based on the start time position for sending the DCI, cell specific reference signal CRS is sent, so that the UE is based on
The CRS demodulates received DCI.
In the specific implementation process, existing CRS pattern is sent out in the 1st, 5,8,12 OFDM symbol of subframe
Send CRS.In the embodiment five, the boundary position namely DCI that the start time position due to sending DCI is not subframe are simultaneously
It will not conventionally send in the 1st~3 OFDM symbol, therefore, in order to guarantee the correct demodulation of DCI, need to hair
The start time position of CRS is sent to be deviated in the time domain, so that sending start time position (namely the OFDM symbol position of CRS
Set) it is consistent with the start time position for sending DCI.
In the specific implementation process, the transmission of configuration information is in addition to including described in cell is sent in the imperfect subframe
It further include the OFDM symbol number (or end time position) that cell sends the DCI outside the start time position of DCI.
In the specific implementation process, the detailed process that the transmission of configuration information of DCI is sent to UE may is that matches for transmission
The start time position in confidence breath can send to the UE in the imperfect subframe and carry instruction initial time
The placeholder of the indicating bit of position.For the OFDM symbol number in transmission of configuration information, control format indicating bit CFI can be passed through
To indicate.The description that can be found in above-described embodiment one~tetra- is discussed in detail.
In actual implementation, when the start time position and OFDM symbol number for sending the DCI in the imperfect subframe
When being specified using preset mode, then the step of sending the transmission of configuration information of DCI to UE in the embodiment of the present invention is not needed.
Embodiment six
As shown in figure 8, the data transmission method flow chart provided for the embodiment of the present invention six, comprising the following steps:
S801: the transmission of configuration information for the Downlink Control Information DCI that base station is sent is received；The DCI is used to indicate the UE
Receive the user data that cell is transmitted in the imperfect subframe of the unauthorized frequency range of occupancy；The transmission of configuration information is included in
Cell sends the start time position of the DCI in the imperfect subframe；
S802: the transmission of configuration information based on the DCI receives cell in the imperfect subframe of the unauthorized frequency range of occupancy
The DCI of interior transmission.
Optionally, the method also includes:
The start time position of the DCI is sent based on cell, receives cell specific reference signal CRS；
Based on the received CRS, the received DCI is demodulated.
Based on the same inventive concept, data transmission dress corresponding with data transmission method is additionally provided in the embodiment of the present invention
It sets, since the principle that the device solves the problems, such as is similar to data transmission method of the embodiment of the present invention, the implementation of the device can
With referring to the implementation of method, overlaps will not be repeated.
Embodiment seven
As shown in figure 9, the data transmission device structural schematic diagram provided for the embodiment of the present invention seven, comprising:
Configuration module 91, for controlling information DCI for user equipment (UE) configurating downlink；The DCI is used to indicate the UE and obtains
The user data for taking cell to transmit in the imperfect subframe of the unauthorized frequency range of occupancy；
Sending module 92, for sending the DCI of configuration to the UE, and in the imperfect subframe of DCI instruction
The introversive UE transmits user data.
Optionally, the sending module 92 is specifically used for:
In the complete subframe of the unauthorized frequency range of occupancy, the DCI of configuration is sent to the UE.
Optionally, the information comprising subframe scheduled in the instruction DCI in the DCI, wherein son scheduled in the DCI
Frame includes the complete subframe where the DCI, and adjacent the first imperfect subframe of the complete subframe where with the DCI and/or
Second imperfect subframe；Wherein, the described first imperfect subframe is the subframe before the complete subframe where the DCI, described
Second imperfect subframe is the subframe after the complete subframe where the DCI.
Optionally, the sending module 92 is specifically used for:
If subframe scheduled in the DCI includes the described first imperfect subframe, the DCI of configuration is sent to the UE
Before, user data is transmitted to the UE in the described first imperfect subframe；And/or
If subframe scheduled in the DCI includes the described second imperfect subframe, the DCI of configuration is sent to the UE
Later, user data is transmitted to the UE in the described second imperfect subframe.
Optionally, if subframe scheduled in the DCI includes the described first imperfect subframe；Then the sending module is also used
In before the DCI for sending configuration to the UE, to UE transmission placeholder in the described first imperfect subframe；
Wherein, include the indicating bit for indicating the time location of the placeholder end of transmission in the placeholder, be used to indicate
The UE caches the received time location from the placeholder end of transmission to the end position of the first imperfect subframe
All data, and the DCI based on receipt of subsequent extracts the user data from all data of caching.
Optionally, the initial time of user data is also transmitted in the DCI in the first imperfect subframe comprising instruction
The information of position.
Optionally, the orthogonal frequency of user data is also transmitted in the DCI in the first imperfect subframe comprising instruction
It is multiplexed the information of OFDM symbol number；Alternatively, the OFDM symbol number for transmitting user data in the first imperfect subframe is 14-
D1, d1 are the start time position that user data is transmitted in the first imperfect subframe；Alternatively, in the first imperfect subframe
The OFDM symbol number of interior transmission user data is default value.
It optionally, also include to refer in the DCI if subframe scheduled in the DCI includes the described second imperfect subframe
Show the information that the orthogonal frequency division multiplex OFDM symbolic number of user data is transmitted in the second imperfect subframe；Alternatively, this
The OFDM symbol number of transmission user data is default value in two imperfect subframes.
Optionally, the sending module 92 is specifically used for:
In the imperfect subframe, the DCI of configuration is sent to the UE.
Optionally, the sending module 92 is also used to:
Based on the start time position for sending the DCI, cell specific reference signal CRS is sent, so that the UE is based on
The CRS demodulates received DCI.
Optionally, the sending module 92 is also used to, before the DCI that configuration is sent to the UE, in the imperfect son
In frame, placeholder is sent to the UE, transmits the instruction of the start time position of the DCI in the placeholder comprising instruction
Position.
Optionally, the orthogonal frequency division multiplexing of user data is transmitted in the DCI in the imperfect subframe comprising instruction
The information of OFDM symbol number；Alternatively, transmitting the OFDM symbol number of user data to the UE in the imperfect subframe as 14-
D2-P, d2 are the start time position for sending the DCI, and P is to be indicated in control format indicating bit CFI described imperfect
The OFDM symbol number of transmission DCI in subframe；Alternatively, to the OFDM symbol of UE transmission user data in the imperfect subframe
Number is default value.
Optionally, if transmitting the OFDM symbol number of user data to the UE in the imperfect subframe as default value
N, then the OFDM symbol number that DCI is transmitted in the imperfect subframe is 14-d2-N.
Embodiment eight
As shown in Figure 10, the data transmission device structural schematic diagram provided for the embodiment of the present invention eight, comprising:
Receiving module 101, for receiving the Downlink Control Information DCI of cell transmission；
Module 102 is obtained, for being based on the DCI, obtains cell in the imperfect subframe of the unauthorized frequency range of occupancy
The user data of transmission.
Optionally, the receiving module 101 is specifically used for:
Receive the DCI that cell is sent in the complete subframe of the unauthorized frequency range of occupancy.
Optionally, the information comprising subframe scheduled in the instruction DCI in the DCI, wherein son scheduled in the DCI
Frame includes the complete subframe where the DCI, and adjacent the first imperfect subframe of the complete subframe where with the DCI and/or
Second imperfect subframe；Wherein, the described first imperfect subframe is the subframe before the complete subframe where the DCI, described
Second imperfect subframe is the subframe after the complete subframe where the DCI.
Optionally, the acquisition module 102 is specifically used for:
Based on the DCI, mentioned from all data that the cell of caching is transmitted in the described first imperfect subframe
Take user data；And/or
Based on the DCI, the user data that the cell is transmitted in the described second imperfect subframe is received.
Optionally, the module 102 that obtains is specifically used for: before receiving the DCI that cell is sent, receiving cell described
The placeholder sent in first imperfect subframe；Wherein, the time comprising the instruction placeholder end of transmission in the placeholder
The indicating bit of position；Cache the end of the received time location from the placeholder end of transmission to the described first imperfect subframe
All data between position.
Optionally, the receiving module 101 is specifically used for:
Receive the DCI that cell is sent in the imperfect subframe.
Optionally, the acquisition module 102 is specifically used for:
Based on the DCI, the user data that the cell is transmitted in the imperfect subframe is received.
Optionally, the receiving module 101 is also used to:
The start time position of the DCI is sent based on cell, receives cell specific reference signal CRS；Based on the CRS
Demodulate received DCI.
Optionally, the receiving module 101 is also used to, and before receiving the DCI, receives cell in the imperfect subframe
The placeholder of interior transmission, the indicating bit of the start time position comprising instruction transmission DCI in the placeholder.
Embodiment nine
As shown in figure 11, the data transmission device structural schematic diagram provided for the embodiment of the present invention nine, comprising:
Configuration module 111, for controlling the transmission of configuration information of information DCI for user equipment (UE) configurating downlink；The DCI
It is used to indicate the UE and receives the user data that cell is transmitted in the imperfect subframe of the unauthorized frequency range of occupancy；The transmission is matched
Confidence breath includes the start time position that cell sends the DCI in the imperfect subframe；
Sending module 112, for the transmission of configuration information to be sent to the UE, and the transmission based on the DCI is matched
Confidence breath, sends the DCI in the imperfect subframe of the unauthorized frequency range of occupancy.
Optionally, the sending module 112 is also used to:
Based on the start time position for sending the DCI, cell specific reference signal CRS is sent, so that the UE is based on
The CRS demodulates received DCI.
Optionally, the sending module 112 is specifically used for:
In the imperfect subframe, placeholder is sent to the UE, includes the instruction transmission DCI in the placeholder
Start time position indicating bit.
Optionally, the transmission of configuration information further includes the orthogonal frequency division multiplex OFDM symbolic number for sending the DCI；
The sending module 112 is specifically used for:
The OFDM symbol number of the DCI is sent by control format indicating bit CFI instruction.
Embodiment ten
As shown in figure 12, the data transmission device structural schematic diagram provided for the embodiment of the present invention ten, comprising:
First receiving module 121, the transmission of configuration information of the Downlink Control Information DCI for receiving base station transmission；It is described
DCI is used to indicate the UE and receives the user data that cell is transmitted in the imperfect subframe of the unauthorized frequency range of occupancy；The biography
Defeated configuration information includes the start time position for sending the DCI in the imperfect subframe in cell；
Second receiving module 122 receives cell in the unauthorized of occupancy for the transmission of configuration information based on the DCI
The DCI sent in the imperfect subframe of frequency range.
Optionally, second receiving module 122 is also used to:
The start time position of the DCI is sent based on cell, receives cell specific reference signal CRS；Based on received
The CRS demodulates the received DCI.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide 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, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of device (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or 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 counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind 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 (30)
1. a kind of data transmission method, which is characterized in that this method comprises:
Information DCI is controlled for user equipment (UE) configurating downlink；The DCI is used to indicate the UE and obtains cell in the unauthorized of occupancy
The user data transmitted in the imperfect subframe of frequency range；
The DCI of configuration is sent to the UE, and transmits number of users to the UE in the imperfect subframe of DCI instruction
According to；
The DCI of configuration is sent to the UE, comprising:
In the imperfect subframe, the DCI of configuration is sent to the UE.
2. the method as described in claim 1, which is characterized in that the method also includes:
Based on the start time position for sending the DCI, cell specific reference signal CRS is sent, so that the UE is based on described
CRS demodulates received DCI.
3. the method as described in claim 1, which is characterized in that before the DCI for sending configuration to the UE, further includes:
In the imperfect subframe, placeholder is sent to the UE, transmits of the DCI in the placeholder comprising instruction
The indicating bit of beginning time location.
4. the method as described in claim 1, which is characterized in that passed in the imperfect subframe in the DCI comprising instruction
The information of the orthogonal frequency division multiplex OFDM symbolic number of defeated user data；Alternatively, being transmitted in the imperfect subframe to the UE
The OFDM symbol number of user data is 14-d2-P, and d2 is the start time position for sending the DCI, and P is in the imperfect son
The OFDM symbol number of transmission DCI in frame；Alternatively, to the OFDM symbol of UE transmission user data in the imperfect subframe
Number is default value.
5. method as claimed in claim 4, which is characterized in that if transmitting number of users to the UE in the imperfect subframe
According to OFDM symbol number be default value N, then in the imperfect subframe transmit DCI OFDM symbol number be 14-d2-N.
6. a kind of data transmission method, which is characterized in that this method comprises:
Receive the Downlink Control Information DCI that cell is sent；
Based on the DCI, the user data that cell is transmitted in the imperfect subframe of the unauthorized frequency range of occupancy is obtained；
Receive the DCI that cell is sent, comprising:
Receive the DCI that cell is sent in the imperfect subframe.
7. method as claimed in claim 6, which is characterized in that obtain the number of users that cell is transmitted in the imperfect subframe
According to, comprising:
Based on the DCI, the user data that the cell is transmitted in the imperfect subframe is received.
8. method as claimed in claim 6, which is characterized in that the method also includes:
The start time position of the DCI is sent based on cell, receives cell specific reference signal CRS；
Received DCI is demodulated based on the CRS.
9. method as claimed in claim 6, which is characterized in that before receiving the DCI, further includes:
Receive the placeholder that cell is sent in the imperfect subframe, the starting comprising instruction transmission DCI in the placeholder
The indicating bit of time location.
10. a kind of data transmission device, which is characterized in that the device includes:
Configuration module, for controlling information DCI for user equipment (UE) configurating downlink；The DCI is used to indicate the UE and obtains cell
The user data transmitted in the imperfect subframe of the unauthorized frequency range of occupancy；
Sending module, for sending the DCI of configuration to the UE, and to institute in the imperfect subframe of DCI instruction
State UE transmission user data；
The sending module is specifically used for:
In the imperfect subframe, the DCI of configuration is sent to the UE.
11. device as claimed in claim 10, which is characterized in that the sending module is also used to:
Based on the start time position for sending the DCI, cell specific reference signal CRS is sent, so that the UE is based on described
CRS demodulates received DCI.
12. device as claimed in claim 10, which is characterized in that the sending module is also used to, and is sent and is configured to the UE
DCI before, in the imperfect subframe, placeholder is sent to the UE, comprising described in instruction transmission in the placeholder
The indicating bit of the start time position of DCI.
13. device as claimed in claim 10, which is characterized in that in the DCI comprising instruction in the imperfect subframe
Transmit the information of the orthogonal frequency division multiplex OFDM symbolic number of user data；Alternatively, being passed in the imperfect subframe to the UE
The OFDM symbol number of defeated user data is 14-d2-P, and d2 is the start time position for sending the DCI, and P is described imperfect
The OFDM symbol number of transmission DCI in subframe；Alternatively, to the OFDM symbol of UE transmission user data in the imperfect subframe
Number is default value.
14. device as claimed in claim 13, which is characterized in that if transmitting user to the UE in the imperfect subframe
The OFDM symbol number of data is default value N, then the OFDM symbol number that DCI is transmitted in the imperfect subframe is 14-d2-N.
15. a kind of data transmission device, which is characterized in that the device includes:
Receiving module, for receiving the Downlink Control Information DCI of cell transmission；
Module is obtained, for being based on the DCI, obtains the use that cell is transmitted in the imperfect subframe of the unauthorized frequency range of occupancy
User data；
The receiving module is specifically used for:
Receive the DCI that cell is sent in the imperfect subframe.
16. device as claimed in claim 15, which is characterized in that the acquisition module is specifically used for:
Based on the DCI, the user data that the cell is transmitted in the imperfect subframe is received.
17. device as claimed in claim 15, which is characterized in that the receiving module is also used to:
The start time position of the DCI is sent based on cell, receives cell specific reference signal CRS；It is demodulated based on the CRS
Received DCI.
18. device as claimed in claim 15, which is characterized in that the receiving module is also used to, before receiving the DCI,
Receive the placeholder that cell is sent in the imperfect subframe, the initial time comprising instruction transmission DCI in the placeholder
The indicating bit of position.
19. a kind of data transmission method, which is characterized in that this method comprises:
The transmission of configuration information of information DCI is controlled for user equipment (UE) configurating downlink；The DCI is used to indicate the UE and receives cell
The user data transmitted in the imperfect subframe of the unauthorized frequency range of occupancy；The transmission of configuration information include cell this not
The start time position of the DCI is sent in complete subframe；
The transmission of configuration information is sent to the UE, and the transmission of configuration information based on the DCI, in the unauthorized of occupancy
The DCI is sent in the imperfect subframe of frequency range.
20. method as claimed in claim 19, which is characterized in that the method also includes:
Based on the start time position for sending the DCI, cell specific reference signal CRS is sent, so that the UE is based on described
CRS demodulates received DCI.
21. method as claimed in claim 19, which is characterized in that the transmission of configuration information is sent to the UE, comprising:
In the imperfect subframe, placeholder is sent to the UE, transmits of the DCI in the placeholder comprising instruction
The indicating bit of beginning time location.
22. method as claimed in claim 19, which is characterized in that the transmission of configuration information further includes sending the DCI
Orthogonal frequency division multiplex OFDM symbolic number；
The transmission of configuration information of Downlink Control Information DCI is sent to user equipment (UE), comprising:
The OFDM symbol number of the DCI is sent by control format indicating bit CFI instruction.
23. a kind of data transmission method, which is characterized in that this method comprises:
Receive the transmission of configuration information for the Downlink Control Information DCI that base station is sent；The DCI is used to indicate UE reception cell and exists
The user data transmitted in the imperfect subframe of the unauthorized frequency range occupied；The transmission of configuration information be included in cell this not
The start time position of the DCI is sent in complete subframe；
Based on the transmission of configuration information of the DCI, receive what cell was sent in the imperfect subframe of the unauthorized frequency range of occupancy
The DCI.
24. method as claimed in claim 23, which is characterized in that the method also includes:
The start time position of the DCI is sent based on cell, receives cell specific reference signal CRS；
Based on the received CRS, the received DCI is demodulated.
25. a kind of data transmission device, which is characterized in that the device includes:
Configuration module, for controlling the transmission of configuration information of information DCI for user equipment (UE) configurating downlink；The DCI is for referring to
Show that the UE receives the user data that cell is transmitted in the imperfect subframe of the unauthorized frequency range of occupancy；The transmission of configuration information
The start time position of the DCI is sent in the imperfect subframe including cell；
Sending module, for the transmission of configuration information to be sent to the UE, and the transmission of configuration information based on the DCI,
The DCI is sent in the imperfect subframe of the unauthorized frequency range of occupancy.
26. device as claimed in claim 25, which is characterized in that the sending module is also used to:
Based on the start time position for sending the DCI, cell specific reference signal CRS is sent, so that the UE is based on described
CRS demodulates received DCI.
27. device as claimed in claim 25, which is characterized in that the sending module is specifically used for:
In the imperfect subframe, placeholder is sent to the UE, transmits of the DCI in the placeholder comprising instruction
The indicating bit of beginning time location.
28. device as claimed in claim 25, which is characterized in that the transmission of configuration information further includes sending the DCI
Orthogonal frequency division multiplex OFDM symbolic number；
The sending module is specifically used for:
The OFDM symbol number of the DCI is sent by control format indicating bit CFI instruction.
29. a kind of data transmission device, which is characterized in that the device includes:
First receiving module, the transmission of configuration information of the Downlink Control Information DCI for receiving base station transmission；The DCI is used for
Indicate that the UE receives the user data that cell is transmitted in the imperfect subframe of the unauthorized frequency range of occupancy；The transmission configuration letter
Breath includes the start time position for sending the DCI in the imperfect subframe in cell；
Second receiving module, for the transmission of configuration information based on the DCI, receive cell occupancy unauthorized frequency range not
The DCI sent in complete subframe.
30. device as claimed in claim 29, which is characterized in that second receiving module is also used to:
The start time position of the DCI is sent based on cell, receives cell specific reference signal CRS；Based on received described
CRS demodulates the received DCI.
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| CN201510130694.5A CN106161312B (en) | 2015-03-24 | 2015-03-24 | A kind of data transmission method and device |
| PCT/CN2015/099741 WO2016150224A1 (en) | 2015-03-24 | 2015-12-30 | Data transmission method and apparatus |
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| CN201510130694.5A CN106161312B (en) | 2015-03-24 | 2015-03-24 | A kind of data transmission method and device |
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| JP6787495B2 (en) * | 2017-01-05 | 2020-11-18 | 日本電気株式会社 | Methods and equipment for transmitting and receiving downlink control information |
| CN108809566A (en) * | 2017-05-04 | 2018-11-13 | 株式会社Ntt都科摩 | The transmission of imperfect subframe and demodulation method, corresponding user equipment and base station |
| CN110167160B (en) | 2018-02-13 | 2022-01-04 | 北京紫光展锐通信技术有限公司 | Channel resource allocation method, computer readable storage medium and terminal |
| CN108770064B (en) * | 2018-05-04 | 2023-01-10 | 宇龙计算机通信科技(深圳)有限公司 | Time slot format configuration method, time slot format determination method, base station and user side equipment |
| US11588604B2 (en) * | 2018-06-29 | 2023-02-21 | Beijing Xiaomi Mobile Software Co., Ltd. | Method and apparatus for transmitting information, base station, and user equipment |
| CN109565686B (en) * | 2018-11-01 | 2023-11-28 | 北京小米移动软件有限公司 | Information transmission method, device, base station and terminal |
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| CN104301273A (en) * | 2014-08-25 | 2015-01-21 | 中兴通讯股份有限公司 | Method and base station for transmitting and receiving signals by using unauthorized carrier waves and user equipment |
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