CN102594437B - A kind of method and system of data transfer - Google Patents
A kind of method and system of data transfer Download PDFInfo
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Abstract
The invention discloses a kind of method and system of data transfer, method includes：Base station is that UE sets non-dynamic subframe, base station and UE to carry out corresponding data transfer according to the configuration of non-dynamic subframe, is specifically included：When non-dynamic subframe is sub-frame of uplink, base station sends successful feedback information according to the indicating downlink data received in non-dynamic subframe or indicating downlink data send the corresponding downlink data transmission of feedback information progress of failure；When non-dynamic subframe is descending sub frame, the feedback information that UE sends failure according to the uplink authorization, and/or instruction upstream data that are received in non-dynamic subframe carries out corresponding transmitting uplink data.By the present invention, it ensure that during uplink-downlink configuration adjustment, data transfer will not be interrupted because uplink-downlink configuration adjustment or bust this.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of time division duplex (TDD, Time Division Duplex) system
In data transfer method and system.
Background technology
Long Term Evolution (LTE, Long-Term Evolution) system supports TDD modes, as shown in figure 1, in time domain,
Each radio frames are 10ms, form (i.e. each field is 5ms) by 2 fields (half-frame), each field is by 5 subframes
Form (i.e. each subframe is 1ms), each subframe is made up of (i.e. each time slot is 0.5ms) 2 time slots (slot).In frequency domain
On, up-link and downlink are transmitted using identical frequency band timesharing, and according to the needs of business, system can be according to one
The part subframe (i.e. sub-frame of uplink) of radio frames is used for uplink by fixed ratio, under part subframe (i.e. descending sub frame) is used for
Row transmission.According to the needs of different regions type of service, suitable up-downgoing proportional arrangement is selected to be advantageous to improve TDD system
Spectrum efficiency.For example for the more area of downlink business, the more configuration of descending sub frame may be selected；For uplink service compared with
More areas, the more configuration of sub-frame of uplink may be selected；For area of the up-downgoing business compared with balance, ascending-descending subframes may be selected
Subequal proportional arrangement.The ratio for the TDD ascending-descending subframes that LTE TDD (or being TD-LTE) system is supported shares 7
Kind, it is as shown in table 1 below：
Table 1
Subframe in one radio frames is respectively labeled as：0、1、2、3、4、5、6、7、8、9." D " represents that the subframe is descending
Subframe；" U " represents that the subframe is sub-frame of uplink；" S " represents that the subframe is special subframe, for representing the son before the subframe
Frame is descending sub frame, and the subframe after the subframe is sub-frame of uplink.Cycle in table 1 refers to the cycle of special subframe, if
In each radio frames there is special subframe in 2 fields, then the cycle is 5ms；If only 1 field is present special in each radio frames
Different subframe, then the cycle is 10ms.
Due to the ascending-descending subframes of uplink-downlink configuration different in TD-LTE system be distributed it is different, therefore it is different configuration of when
Sequence is also just different.It is the descending sequential of TD-LTE system shown in table 2, user equipment (UE, User Equipment) is in up son
Frame n is fed back in descending sub frame (n-kPDSCH) whether the downlink data that receives receive success.Wherein, kPDSCHRepresent downlink data
Time interval between the subframe of transmission and the subframe of uplink feedback.
Table 2
It is the up sequential of TD-LTE system shown in table 3, base station is that UE distributes ascending resource in descending sub frame n, indicates UE
In sub-frame of uplink (n+kPUSCH) send upstream data；Base station is in descending sub frame (n+kPHICH) feed back what is received in sub-frame of uplink n
Whether upstream data receives success.Wherein, kPUSCHRepresent uplink authorization subframe and transmitting uplink data subframe between when
Between be spaced, kPHICHRepresent the time interval between the subframe of transmitting uplink data and the subframe of downstream feedback.
Table 3
In the case where there is the uplink service to happen suddenly or downlink business, if uplink-downlink configuration can not be adapted to up-downgoing
The ratio demand of business, base station need to adjust uplink-downlink configuration.In order to neatly adjust uplink-downlink configuration, prior art introduces dynamic
The concept of state subframe, dynamic subframe refer to that it is descending sub frame or sub-frame of uplink to be adjusted flexibly according to the scheduling of base station.For
The uplink-downlink configuration in 5ms cycles, subframe 0,1,5,6 are descending sub frames (it should be noted that be classified as special subframe descending herein
Subframe is because special subframe is handled as descending sub frame in above-mentioned sequential), subframe 2,7 is sub-frame of uplink, subframe 3,4,8,9
It is dynamic subframe.For the uplink-downlink configuration in 10ms cycles, subframe 0,1,5,6,7,8,9 is descending sub frame, and subframe 2 is up son
Frame, subframe 3,4 is dynamic subframe.
In the uplink-downlink configuration in 5ms cycles, when dynamic subframe (subframe 3,4,8,9) is followed successively by " UUUU ", expression is to match somebody with somebody
Set to 0；When dynamic subframe is followed successively by " UUUD ", expression is configuration 6；When dynamic subframe is followed successively by " UDUD ", expression is configuration 1；When
Dynamic subframe is followed successively by " DDDD ", and expression is configuration 2.In the uplink-downlink configuration in 10ms cycles, when dynamic subframe (subframe 3,4)
It is followed successively by " UU ", expression is configuration 3；When dynamic subframe is followed successively by " UD ", expression is configuration 4；When dynamic subframe is followed successively by " DD ",
Expression is configuration 5.As can be seen here, adjust dynamic subframe (i.e. dynamic subframe is changed into descending sub frame from sub-frame of uplink, or by descending
Subframe is changed into sub-frame of uplink) it is actually adjustment uplink-downlink configuration.
Because the sequential of different uplink-downlink configurations is different, therefore data transfer can be caused to lose when adjusting dynamic subframe
Lose.For example, in 5ms uplink-downlink configuration, dynamic subframe 9 is adjusted to descending sub frame by sub-frame of uplink, remaining dynamic subframe (son
Frame 3,4,8) remain sub-frame of uplink, as shown in Fig. 2 radio frames n is with setting to 0, radio frames (n+1) are configurations 6.Base station is wireless
Frame n subframe 6 sends downlink data and fed back to UE, UE according to the descending sequential set to 0 in the subframe 2 of radio frames (n+1) described
Whether downlink data receives success.And being adjusted in radio frames (n+1), dynamic subframe, it is meant that uplink-downlink configuration adjusts, according to
The descending sequential of configuration 6 after adjustment, base station are considered to radio frames n in the feedback information that the subframe 2 of radio frames (n+1) receives
Subframe 5 downlink data feedback.Because base station can not normally obtain the lower line number of the transmission of subframe 6 in radio frames n
According to feedback information, unnecessary data will be caused to retransmit (base station is mistakenly considered the data transmission fails) or loss of data
(base station is mistakenly considered the data transfer success).Thus, how to ensure during uplink-downlink configuration adjusts, data transfer will not
Interruption or bust this because uplink-downlink configuration adjustment, are current urgent problems to be solved.
The content of the invention
In view of this, it is a primary object of the present invention to provide a kind of data transmission method and system, to ensure upper and lower
During row configuration adjustment, data transfer will not be interrupted because uplink-downlink configuration adjustment or bust this.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
The invention provides a kind of method of data transfer, this method includes：
Base station is that UE sets non-dynamic subframe, the base station and UE to be carried out accordingly according to the configuration of the non-dynamic subframe
Data transfer, specifically include：
When the non-dynamic subframe is sub-frame of uplink, base station is according to the indicating downlink number received in the non-dynamic subframe
Corresponding downlink data biography is carried out according to the feedback information for sending successful feedback information or the transmission failure of indicating downlink data
It is defeated；
When the non-dynamic subframe is descending sub frame, UE according to the uplink authorization received in the non-dynamic subframe and/
Or instruction upstream data sends the corresponding transmitting uplink data of feedback information progress of failure.
Base station is that UE sets the non-dynamic subframe by system information or dedicated signaling, in the following ways at least it
One：
The system information or dedicated signaling of the numbering of the base station transmission carrying non-dynamic subframe are to UE, then each
In radio frames, subframe corresponding with the numbering is non-dynamic subframe；
The system information or dedicated signaling of the numbering of the base station transmission carrying dynamic subframe are to UE, then in each radio frames
Interior, the subframe in addition to subframe corresponding to the numbering is non-dynamic subframe；
The base station sends the system information for carrying non-dynamic subframe index or dedicated signaling to UE, and the UE is according to default
Non-dynamic subframe index non-dynamic subframe corresponding to the corresponding relation acquisition of the numbering of non-dynamic subframe numbering, then each
In radio frames, subframe corresponding to the numbering is non-dynamic subframe.
The system information is system information block 1 (SIB1) or system information block 2 (SIB2).
The dedicated signaling is wireless resource control connection reconfiguration message.
This method further comprises：Non-dynamic subframe and the UE progress that UE receives control information are preset with UE in the base station
The corresponding relation of the non-dynamic subframe of data transfer；Or the default non-dynamic subframe for receiving control information in the base station with
The corresponding relation of the non-dynamic subframe carried out data transmission, the base station notify the corresponding relation to UE；
Wherein, the control information includes following at least one：Uplink authorization, uplink feedback information and downstream feedback letter
Breath；The uplink feedback information is that indicating downlink data send successful feedback information or indicating downlink data send failure
Feedback information, the downlink feedback information for instruction upstream data send failure feedback information.
The corresponding relation is at least one of：
It is described receive control information non-dynamic subframe numbering and its it is corresponding it is described receive control information it is non-dynamic
The time interval of subframe and the non-dynamic subframe carried out data transmission；
The numbering of the non-dynamic subframe carried out data transmission and its it is corresponding it is described receive control information it is non-dynamic
The time interval of subframe and the non-dynamic subframe carried out data transmission.
Present invention also offers a kind of system of data transfer, the system includes：Base station and UE, wherein,
The base station is that UE sets non-dynamic subframe, the base station and UE to carry out phase according to the configuration of the non-dynamic subframe
The data transfer answered, specifically：
When the non-dynamic subframe is sub-frame of uplink, base station is according to the indicating downlink number received in the non-dynamic subframe
Corresponding downlink data biography is carried out according to the feedback information for sending successful feedback information or the transmission failure of indicating downlink data
It is defeated；
When the non-dynamic subframe is descending sub frame, UE according to the uplink authorization received in the non-dynamic subframe and/
Or instruction upstream data sends the corresponding transmitting uplink data of feedback information progress of failure.
The base station is that UE sets the non-dynamic subframe by system information or dedicated signaling, in the following ways extremely
It is one of few：
The system information or dedicated signaling of the numbering of the base station transmission carrying non-dynamic subframe are to UE, then each
In radio frames, subframe corresponding with the numbering is non-dynamic subframe；
The system information or dedicated signaling of the numbering of the base station transmission carrying dynamic subframe are to UE, then in each radio frames
Interior, the subframe in addition to subframe corresponding to the numbering is non-dynamic subframe；
The base station sends the system information for carrying non-dynamic subframe index or dedicated signaling to UE, and the UE is according to default
Non-dynamic subframe index non-dynamic subframe corresponding to the corresponding relation acquisition of the numbering of non-dynamic subframe numbering, then each
In radio frames, subframe corresponding to the numbering is non-dynamic subframe.
The system information is SIB1 or SIB2.
The dedicated signaling is wireless resource control connection reconfiguration message.
Preset in the base station and UE UE receive control information non-dynamic subframe carry out data transmission with UE it is non-dynamic
The corresponding relation of subframe；Or in the base station preset receive control information non-dynamic subframe with carry out data transmission it is non-
The corresponding relation of dynamic subframe, the base station notify the corresponding relation to UE；
Wherein, the control information includes following at least one：Uplink authorization, uplink feedback information and downstream feedback letter
Breath；The uplink feedback information is that indicating downlink data send successful feedback information or indicating downlink data send failure
Feedback information, the downlink feedback information for instruction upstream data send failure feedback information.
The corresponding relation is at least one of：
It is described receive control information non-dynamic subframe numbering and its it is corresponding it is described receive control information it is non-dynamic
The time interval of subframe and the non-dynamic subframe carried out data transmission；
The numbering of the non-dynamic subframe carried out data transmission and its it is corresponding it is described receive control information it is non-dynamic
The time interval of subframe and the non-dynamic subframe carried out data transmission.
A kind of data transmission method provided by the present invention and system, be that UE sets non-dynamic subframe by base station, base station and
UE carries out corresponding data transfer according to the configuration of non-dynamic subframe, specifically includes：When non-dynamic subframe is sub-frame of uplink, base
Stand and send successful feedback information or the transmission mistake of indicating downlink data according to the indicating downlink data received in non-dynamic subframe
The feedback information lost carries out corresponding downlink data transmission；When non-dynamic subframe is descending sub frame, UE is according in non-dynamic son
The feedback information that the uplink authorization, and/or instruction upstream data that frame receives send failure carries out corresponding transmitting uplink data.It is logical
Cross the present invention, ensure that uplink-downlink configuration adjustment during, data transfer will not because uplink-downlink configuration adjust and interrupt or
Bust this, improve the success rate of data transfer.
Brief description of the drawings
Fig. 1 is the frame structure schematic diagram of existing TDD system；
Fig. 2 is the schematic diagram that adjustment dynamic subframe causes data transmission fails；
Fig. 3 is the data transmission method flow chart of the embodiment of the present invention one；
Fig. 4 is the data transmission method flow chart of the embodiment of the present invention two；
Fig. 5 is the data transmission method flow chart of the embodiment of the present invention three.
Embodiment
The technical solution of the present invention is further elaborated with specific embodiment below in conjunction with the accompanying drawings.
A kind of method of data transfer provided by the present invention, including：Base station is that UE sets specific non-dynamic subframe, base
Stand and UE carries out corresponding data transfer according to the configuration of non-dynamic subframe, specifically include：
When non-dynamic subframe is sub-frame of uplink, base station according to the indicating downlink data that are received in non-dynamic subframe send into
The feedback information (NACK) that the feedback information (ACK) or indicating downlink data of work(send failure carries out corresponding downlink data
Transmission；
When non-dynamic subframe is descending sub frame, UE is according on the uplink authorization, and/or instruction received in non-dynamic subframe
The feedback information (NACK) that row data send failure carries out corresponding transmitting uplink data.
Further, base station can be that UE sets non-dynamic subframe by system information or dedicated signaling, can use with
At least one of under type：
1st, the system information of the numbering of the base station transmission carrying non-dynamic subframe or dedicated signaling are to UE, then in each nothing
In line frame, subframe corresponding with the numbering is non-dynamic subframe；
2nd, the system information of the numbering of base station transmission carrying dynamic subframe or dedicated signaling are to UE, then in each radio frames
Interior, the subframe in addition to subframe corresponding to the numbering is non-dynamic subframe；
3rd, base station sends the system information for carrying non-dynamic subframe index or dedicated signaling to UE, and UE is according to default non-dynamic
The numbering of state subframe index non-dynamic subframe corresponding to the corresponding relation acquisition of the numbering of non-dynamic subframe, then in each radio frames
Interior, subframe corresponding to the numbering is non-dynamic subframe.
Further, the corresponding relation of the numbering of the non-dynamic subframe index and non-dynamic subframe by agreement (such as
36.213) predefined.In LTE TDD systems, the non-dynamic subframe index refers to the index of uplink-downlink configuration.
Further, the system information can be system information block 1 (SIB1) or system information block 2 (SIB2).It is described
Dedicated signaling can be wireless resource control connection reconfiguration message (RRC ConnectionReconfiguration).Wherein,
SIB1 and SIB2 is the message defined in existing LTE RRC agreements, is common knowledge, seldom repeats herein.
Further, base station and UE preset UE receive the non-dynamic subframe of control information carry out data transmission with UE it is non-
The corresponding relation of dynamic subframe；Or the default non-dynamic subframe for receiving control information in base station with carry out data transmission it is non-
The corresponding relation of dynamic subframe, base station notify the corresponding relation to UE；Wherein, the control information includes following at least one
Kind：Uplink authorization, uplink feedback information and downlink feedback information；The uplink feedback information is that indicating downlink data are sent successfully
Feedback information or indicating downlink data send failure feedback information, the downlink feedback information for instruction upstream data
Send the feedback information of failure.The corresponding relation can be at least one of：
Receive the numbering of the non-dynamic subframe of control information and its corresponding non-dynamic subframe for receiving control information
With the time interval of the non-dynamic subframe carried out data transmission；
The numbering of the non-dynamic subframe carried out data transmission and its corresponding non-dynamic subframe for receiving control information
With the time interval of the non-dynamic subframe carried out data transmission.
Further, can also preset uplink-downlink configuration index, receive control information non-dynamic subframe numbering and
The time interval of the non-dynamic subframe and the non-dynamic subframe carried out data transmission for receiving control information corresponding to it；
Or the index of default uplink-downlink configuration, the numbering of the non-dynamic subframe carried out data transmission and its corresponding described receive are controlled
The time interval of the non-dynamic subframe of information processed and the non-dynamic subframe carried out data transmission.
Further, the dedicated signaling can carry at least one of following information：
The numbering of the numbering of the non-dynamic subframe carried out data transmission and the non-dynamic subframe of reception control information；
The numbering of the non-dynamic subframe carried out data transmission and its corresponding non-dynamic subframe for receiving control information
With the time interval of the non-dynamic subframe carried out data transmission；
Receive the numbering of the non-dynamic subframe of control information and its corresponding non-dynamic subframe for receiving control information
With the time interval of the non-dynamic subframe carried out data transmission；
The index of corresponding relation, in LTE TDD systems, the index of the corresponding relation is the index of uplink-downlink configuration.
The data transmission method of the present invention is further described in conjunction with specific embodiment below.
The embodiment of the present invention one describe scene be：Base station is that the method for the non-dynamic subframe of UE settings is non-dynamic by carrying
The downlink signaling of state subframe index.As shown in figure 3, including following operation：
Step 11, the system information (such as SIB1) of the non-dynamic subframe index of base station transmission carrying gives UE, is set for UE non-dynamic
State subframe.
Wherein, the non-dynamic subframe index can be the index (TDD-Config) of uplink-downlink configuration.It is pre- in the protocol
Define the corresponding relation of the non-dynamic subframe index and one or more non-dynamic subframes.Such as：For 000 (with setting to 0),
001 (configuration 1), 010 (configuration 2), 110 (configurations 6), non-dynamic subframe refers to subframe 0, subframe 1, subframe 2, subframe 5, subframe
6th, subframe 7.For 011 (configuration 3), 100 (configurations 4), 101 (configurations 5), non-dynamic subframe refers to subframe 0, subframe 1, subframe
2nd, subframe 5, subframe 6, subframe 7, subframe 8, subframe 9.
UE is according to the index of the uplink-downlink configuration received and the index of uplink-downlink configuration pass corresponding with non-dynamic subframe
System understands the subframe number of non-dynamic subframe, i.e. which subframe is non-dynamic subframe.
The attribute of subframe is also predefined in the protocol, i.e., described subframe is sub-frame of uplink or descending sub frame.Such as：Son
Frame 0, subframe 1, subframe 5, subframe 6 are descending sub frames, and subframe 2, subframe 7 are sub-frame of uplink.UE is according to the subframe of non-dynamic subframe
Numbering understands that the non-dynamic subframe is sub-frame of uplink or descending sub frame.
Also predefine in the protocol UE receive control information non-dynamic subframe carry out data transmission with UE it is non-dynamic
The corresponding relation of subframe.Wherein, the non-dynamic subframe of a reception control information can correspond to one or more carry out accordingly
Data transfer non-dynamic subframe.With UE, in the downlink data transmission of non-dynamic subframe, (i.e. described UE carries out data transmission
Non-dynamic subframe is descending sub frame) exemplified by, agreement predefines the numbering of the non-dynamic subframe of UE send feedback informations, UE is sent instead
Pair of time interval between the two between the non-dynamic subframe of feedforward information and the non-dynamic subframe for receiving corresponding downlink data
It should be related to.It is as shown in table 4 below：
Table 4
UE can obtain the time interval K according to the numbering n of the non-dynamic subframe of the send feedback informationPDSCH, further
The numbering of the non-dynamic subframe for receiving corresponding downlink data can be obtained.If n-KPDSCHLess than 0, then lower line number accordingly is received
According to the numbering of subframe be 10+n-KPDSCH；If n-KPDSCHMore than 0, then the numbering for receiving the subframe of corresponding downlink data is n-
KPDSCH。
With UE, in the transmitting uplink data of non-dynamic subframe, (the non-dynamic subframe that i.e. described UE carries out data transmission is up
Subframe) exemplified by, regulation UE receives the non-dynamic subframe of uplink authorization or feedback information (ACK/NACK) in agreement is predefined
Numbering, UE receives the non-dynamic subframe of uplink authorization or feedback information (ACK/NACK) and sends corresponding upstream data
The corresponding relation of time interval between the two between non-dynamic subframe.It is as shown in table 5 below：
Table 5
UE is according to the index of the uplink-downlink configuration and the reception uplink authorization or feedback information (ACK/NACK)
The numbering n of non-dynamic subframe can obtain the time interval KPUSCH, can further obtain the non-of the corresponding upstream data of transmission
The numbering of dynamic subframe.If n+KPUSCHMore than or equal to 10, then the numbering of the non-dynamic subframe carried out data transmission is n+
KPUSCH-10；If n+KPUSCHLess than 10, then the numbering of the non-dynamic subframe carried out data transmission is n+KPUSCH。
Step 12, the non-dynamic subframe of control information is received according to step 11 and is carried out data transmission non-dynamic
The corresponding relation of subframe, UE carry out up-downgoing data transfer in non-dynamic subframe.
Such as：It is non-dynamic subframe according to index instruction subframe 1, the subframe 7 in step 11.According to predetermined foster son in agreement
Frame 1 is descending sub frame, and subframe 7 is sub-frame of uplink.According to the instruction of table 4 and table 5, UE receives downlink data in subframe 1, will be in son
The send feedback information of frame 7 indicates whether the downlink data receives success to base station.It is in addition, up according to being received in subframe 1
Authorize and/or feedback information (ACK/NACK), UE send upstream data in subframe 7.
Step 13, base station sends downlink signaling and gives UE instruction dynamic subframe changes.
The present invention indicates that base station the method for UE dynamic subframes change is not construed as limiting, such as：The downlink signaling can be
The downlink signaling of the index (being different from the index in step 11) of new uplink-downlink configuration is carried, can carry change
The downlink signaling of the numbering of dynamic subframe.
Step 14, because non-dynamic subframe is constant, therefore UE is still according to regular in non-dynamic son described in step 12
Frame carries out the transmission of up-downgoing data.
I.e. no matter how dynamic subframe, which changes, (is changed to descending sub frame by sub-frame of uplink, or is changed to by descending sub frame
Sub-frame of uplink), for non-dynamic subframe (such as subframe 1, subframe 7 described in the present embodiment), still according to institute in step 11
The corresponding relation for stating the non-dynamic subframe for receiving the non-dynamic subframe of control information and carrying out data transmission carries out up-downgoing data
Transmission.
As can be seen here, no matter how dynamic subframe changes, and does not influence up-downgoing data transfers of the UE in non-dynamic subframe.
The embodiment of the present invention two describe scene be：Base station is that the method for the non-dynamic subframe of UE settings is by carrying dynamic
The downlink signaling of the subframe number of subframe.As shown in figure 4, including following operation：
Step 21, base station sends the dedicated signaling (such as RRC connections reconfiguration message) for the subframe number for carrying dynamic subframe
To UE, instruction UE sets non-dynamic subframe.
UE is non-dynamic subframe according to which subframe is the numbering of the dynamic subframe can obtain, i.e., subframe number is not described dynamic
The subframe of the numbering of state subframe is non-dynamic subframe.
Similar with step 11, the attribute of subframe is that agreement is predefined, and UE can obtain according to the numbering of non-dynamic subframe
The non-dynamic subframe is sub-frame of uplink or descending sub frame.
It is similar with step 11, non-dynamic subframe and UE progress that UE receives control information are also predefined in the protocol
The corresponding relation of the non-dynamic subframe of data transfer.
Step 22, the non-dynamic subframe of control information is received according to step 21 and is carried out data transmission non-dynamic
The corresponding relation of subframe, UE carry out up-downgoing data transfer in non-dynamic subframe.
Such as：It is dynamic subframe according to subframe number instruction subframe 3, subframe 4, subframe 8, the subframe 9 in step 21, thus
It is non-dynamic subframe that subframe 0, subframe 1, subframe 2, subframe 5, subframe 6, subframe 7, which can be obtained,.According to predefined subframe 0, son in agreement
Frame 1, subframe 5, subframe 6 are descending sub frames, and subframe 2, subframe 7 are sub-frame of uplink.Received according to UE is predefined in agreement in subframe 1
Downlink data, it will indicate whether the downlink data receives success to base station in the send feedback information of subframe 7.In addition, according to
The uplink authorization and/or feedback information (ACK/NACK) that subframe 1 receives, UE send upstream data in subframe 7.
Step 23, base station sends downlink signaling and gives UE instruction dynamic subframe changes.
The present invention indicates that base station the method for UE dynamic subframes change is not construed as limiting, such as：The downlink signaling can be
Carry the downlink signaling of the numbering of the dynamic subframe of change.
Step 24, because non-dynamic subframe is constant, therefore UE is still according to regular in non-dynamic son described in step 22
Frame carries out the transmission of up-downgoing data.
I.e. no matter how dynamic subframe, which changes, (is changed to descending sub frame by sub-frame of uplink, or is changed to by descending sub frame
Sub-frame of uplink), for non-dynamic subframe (such as subframe 1, subframe 7 described in the present embodiment), still according to institute in step 21
The corresponding relation for stating the non-dynamic subframe for receiving the non-dynamic subframe of control information and carrying out data transmission carries out up-downgoing data
Transmission.
The embodiment of the present invention three describe scene be：Base station is that the method for the non-dynamic subframe of UE settings is non-dynamic by carrying
The downlink signaling of the subframe number of state subframe.As shown in figure 5, including following operation：
Step 31, it is non-dynamic to indicate that UE is set to UE for the dedicated signaling that base station sends the subframe number for carrying non-dynamic subframe
State subframe.
The dedicated signaling refers to RRC connections reconfiguration message (RRC ConnectionReconfiguration).
UE is non-dynamic subframe according to which subframe is the numbering of the non-dynamic subframe can obtain, i.e., subframe number is described dynamic
The subframe of the numbering of state subframe is non-dynamic subframe.
Agreement predefines the attribute of subframe, i.e., described subframe is sub-frame of uplink or descending sub frame.UE is according to described non-dynamic
It is sub-frame of uplink or descending sub frame that the attribute of subframe corresponding to the numbering of state subframe, which can obtain the non-dynamic subframe,.
In addition, the dedicated signaling can also carry the attribute of the non-dynamic subframe, that is, indicate described non-dynamic
Subframe is sub-frame of uplink or descending sub frame.
The non-dynamic subframe can also be implicit instruction.Agreement predefines the non-dynamic subframe that UE receives control information
With the corresponding relation of the UE non-dynamic subframes carried out data transmission.If the non-dynamic subframe according to being indicated in the dedicated signaling is
Control information is received for UE, then the subframe carried out data transmission accordingly is also non-dynamic subframe.If according to described special
It is for data transfer with the non-dynamic subframe indicated in signaling, then the corresponding subframe for receiving control information is also non-dynamic
State subframe.
Similar with step 11, agreement predefines that UE receives the non-dynamic subframe of control information and UE carries out data transmission
The corresponding relation of non-dynamic subframe.
In addition, the dedicated signaling can also carry the corresponding relation.Such as：
The dedicated signaling carries the numbering that UE receives the non-dynamic subframe of control information, and its corresponding UE receives control
The time interval of the non-dynamic subframe of information and the UE non-dynamic subframes carried out data transmission；
The dedicated signaling carries the numbering for the non-dynamic subframe that UE carries out data transmission, and its corresponding UE receives control
The time interval of the non-dynamic subframe of information and the UE non-dynamic subframes carried out data transmission；
The dedicated signaling carries the numbering that UE receives the non-dynamic subframe of control information, and UE carries out data transmission
The numbering of non-dynamic subframe.
Step 32, the non-dynamic subframe of control information is received according to step 31 and is carried out data transmission non-dynamic
The corresponding relation of subframe, UE carry out up-downgoing data transfer in non-dynamic subframe.
Such as：It is non-dynamic subframe according to the subframe number instruction subframe 1 in step 31；According to predefined subframe in agreement
1 is descending sub frame；According to the corresponding relation (such as instruction of table 4 and table 5), the subframe 7 corresponding to subframe 1 is also non-dynamic
Subframe.UE receives downlink data in subframe 1, will indicate whether the downlink data connects to base station in the send feedback information of subframe 7
Harvest work(.In addition, according to the uplink authorization and/or feedback information (ACK/NACK) that are received in subframe 1, UE is in the transmission of subframe 7
Row data.
Step 33, base station sends downlink signaling and gives UE instruction dynamic subframe changes.
The present invention indicates that base station the method for UE dynamic subframes change is not construed as limiting, such as：The downlink signaling can be
The downlink signaling of the index of new uplink-downlink configuration is carried, can be the downlink signaling of the numbering for the dynamic subframe for carrying change.
Step 34, because non-dynamic subframe is constant, therefore UE is still according to regular in non-dynamic son described in step 32
Frame carries out the transmission of up-downgoing data.
I.e. no matter how dynamic subframe, which changes, (is changed to descending sub frame by sub-frame of uplink, or is changed to by descending sub frame
Sub-frame of uplink), for non-dynamic subframe (such as subframe 1, subframe 7 described in the present embodiment), still according to institute in step 31
The corresponding relation for stating the non-dynamic subframe for receiving the non-dynamic subframe of control information and carrying out data transmission carries out up-downgoing data
Transmission.
The method of corresponding above-mentioned data transfer, present invention also offers a kind of system of data transfer, including：Base station and
UE.Wherein, base station is that UE sets non-dynamic subframe, base station and UE to carry out corresponding data according to the configuration of the non-dynamic subframe
Transmission, specifically：
When non-dynamic subframe is sub-frame of uplink, base station is sent out according to the indicating downlink data received in the non-dynamic subframe
The feedback information for sending successful feedback information or indicating downlink data to send failure carries out corresponding downlink data transmission；
When non-dynamic subframe is descending sub frame, UE is according to the uplink authorization received in the non-dynamic subframe, and/or refers to
Show that upstream data sends the corresponding transmitting uplink data of feedback information progress of failure.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (12)
- A kind of 1. method of data transfer, it is characterised in that this method includes：Base station is that UE sets non-dynamic subframe, the base station and UE to carry out corresponding data according to the configuration of the non-dynamic subframe Transmission, is specifically included：When the non-dynamic subframe is sub-frame of uplink, base station is sent out according to the indicating downlink data received in the non-dynamic subframe The feedback information for sending successful feedback information or indicating downlink data to send failure carries out corresponding downlink data transmission；When the non-dynamic subframe is descending sub frame, UE is according to the uplink authorization received in the non-dynamic subframe, and/or refers to Show that upstream data sends the corresponding transmitting uplink data of feedback information progress of failure；Wherein, the data transmission method, further comprises：UE is preset with UE receive the non-dynamic of control information in the base station The corresponding relation of subframe and the UE non-dynamic subframes carried out data transmission；Or in the default reception control information in the base station Non-dynamic subframe and the corresponding relation of non-dynamic subframe carried out data transmission, the base station by the corresponding relation notify to UE。
- 2. the method for data transfer according to claim 1, it is characterised in that base station is by system information or dedicated signaling At least one of UE sets the non-dynamic subframe, in the following ways：The system information or dedicated signaling of the numbering of the base station transmission carrying non-dynamic subframe are to UE, then each wireless In frame, subframe corresponding with the numbering is non-dynamic subframe；The base station send the numbering for carrying dynamic subframe system information or dedicated signaling to UE, then in each radio frames, Subframe in addition to subframe corresponding to the numbering is non-dynamic subframe；The base station sends the system information for carrying non-dynamic subframe index or dedicated signaling to UE, and the UE is according to default non- Dynamic subframe indexes the numbering of non-dynamic subframe corresponding to the corresponding relation acquisition of the numbering of non-dynamic subframe, then each wireless In frame, subframe corresponding to the numbering is non-dynamic subframe.
- 3. the method for data transfer according to claim 2, it is characterised in that the system information is system information block 1 Or system information block 2 (SIB2) (SIB1).
- 4. the method for data transfer according to claim 2, it is characterised in that the dedicated signaling connects for wireless heterogeneous networks Connect reconfiguration message.
- 5. the method for data transfer according to claim 1, it is characterised in that the control information includes following at least one Kind：Uplink authorization, uplink feedback information and downlink feedback information；The uplink feedback information is that indicating downlink data are sent successfully Feedback information or indicating downlink data send failure feedback information, the downlink feedback information for instruction upstream data Send the feedback information of failure.
- 6. the method for data transfer according to claim 1, it is characterised in that the corresponding relation is at least one of：The numbering of the non-dynamic subframe for receiving control information and its corresponding non-dynamic subframe for receiving control information With the time interval of the non-dynamic subframe carried out data transmission；The numbering of the non-dynamic subframe carried out data transmission and its corresponding non-dynamic subframe for receiving control information With the time interval of the non-dynamic subframe carried out data transmission.
- 7. a kind of system of data transfer, it is characterised in that the system includes：Base station and UE, wherein,The base station is that UE sets non-dynamic subframe, the base station and UE to be carried out accordingly according to the configuration of the non-dynamic subframe Data transfer, specifically：When the non-dynamic subframe is sub-frame of uplink, base station is sent out according to the indicating downlink data received in the non-dynamic subframe The feedback information for sending successful feedback information or indicating downlink data to send failure carries out corresponding downlink data transmission；When the non-dynamic subframe is descending sub frame, UE is according to the uplink authorization received in the non-dynamic subframe, and/or refers to Show that upstream data sends the corresponding transmitting uplink data of feedback information progress of failure；Wherein, preset in the base station and UE UE receive control information non-dynamic subframe carry out data transmission with UE it is non-dynamic The corresponding relation of subframe；Or in the base station preset receive control information non-dynamic subframe with carry out data transmission it is non- The corresponding relation of dynamic subframe, the base station notify the corresponding relation to UE.
- 8. the system of data transfer according to claim 7, it is characterised in that the base station passes through system information or special letter At least one of make and the non-dynamic subframe is set for UE, in the following ways：The system information or dedicated signaling of the numbering of the base station transmission carrying non-dynamic subframe are to UE, then each wireless In frame, subframe corresponding with the numbering is non-dynamic subframe；The base station send the numbering for carrying dynamic subframe system information or dedicated signaling to UE, then in each radio frames, Subframe in addition to subframe corresponding to the numbering is non-dynamic subframe；The base station sends the system information for carrying non-dynamic subframe index or dedicated signaling to UE, and the UE is according to default non- Dynamic subframe indexes the numbering of non-dynamic subframe corresponding to the corresponding relation acquisition of the numbering of non-dynamic subframe, then each wireless In frame, subframe corresponding to the numbering is non-dynamic subframe.
- 9. the system of data transfer according to claim 8, it is characterised in that the system information is SIB1 or SIB2.
- 10. the system of data transfer according to claim 8, it is characterised in that the dedicated signaling is wireless heterogeneous networks Connect reconfiguration message.
- 11. the system of data transfer according to claim 7, it is characterised in that the control information includes following at least one Kind：Uplink authorization, uplink feedback information and downlink feedback information；The uplink feedback information is that indicating downlink data are sent successfully Feedback information or indicating downlink data send failure feedback information, the downlink feedback information for instruction upstream data Send the feedback information of failure.
- 12. the system of data transfer according to claim 7, it is characterised in that the corresponding relation is at least one of：The numbering of the non-dynamic subframe for receiving control information and its corresponding non-dynamic subframe for receiving control information With the time interval of the non-dynamic subframe carried out data transmission；The numbering of the non-dynamic subframe carried out data transmission and its corresponding non-dynamic subframe for receiving control information With the time interval of the non-dynamic subframe carried out data transmission.
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| JP2017529015A (en) * | 2014-09-25 | 2017-09-28 | 富士通株式会社 | Subframe scheduling method, data transmission / reception method, apparatus and system in half-duplex communication system |
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