CN104144509B - The implementation method and device of more subframe schedulings of Physical Downlink Shared Channel - Google Patents
The implementation method and device of more subframe schedulings of Physical Downlink Shared Channel Download PDFInfo
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Abstract
This application discloses a kind of implementation methods of more subframe schedulings of Physical Downlink Shared Channel, comprising: UE receives configuration information from base station, and the configuration information configuration UE works in more subframe scheduling operating modes；UE receives PDCCH on the subframe collection of the PDCCH blind Detecting of more subframe scheduling operating modes of configuration, and more subframe scheduling control information are parsed from the PDCCH received；More subframe schedulings control information that UE is obtained according to parsing receives PDSCH data, and feeds back HARQ-ACK information according to corresponding HARQ-ACK timing relationship.Disclosed herein as well is a kind of terminals.Using technical solution disclosed in the present application, can be realized a subframe PDCCH dispatch multiple subframes PDSCH purpose.
Description
Technical field
This application involves the dispatching methods of the Physical Downlink Shared Channel (PDSCH) in wireless communication system, in particular to
The implementation method and device of more subframe schedulings of Physical Downlink Shared Channel.
Background technique
The Long Term Evolution (LTE) System of 3GPP standardization body supports frequency division duplex (FDD) and two kinds of time division duplex (TDD)
Duplex mode.For above two mode, the length of each radio frames is 10ms, the subframe for being 1ms comprising 10 length, by two
The time slot that a continuous length is 0.5ms is constituted, i.e., k-th of subframe includes time slot 2k and time slot 2k+1.
For LTE FDD system, upstream and downstream transmission is carried by two symmetrical frequency ranges, therefore, at each moment, uplink
Downlink subframe exists simultaneously.For LTE TDD system, upstream and downstream transmission is carried by same frequency range, by timing separation, i.e.,
According to different configurations, by the different subframe definitions in a system-frame be sub-frame of uplink, downlink subframe or special subframe (i.e. by
The subframe of descending pilot frequency time slot, protection interval and uplink pilot time slot composition).Present LTE TDD system support 7 kinds it is different
Upstream and downstream configuration, as shown in table 1, wherein the D in table 1 represents downlink subframe, and U represents sub-frame of uplink, and S represents special subframe.
1 TDD uplink-downlink configuration of table
In LTE system, downlink transfer is realized by the scheduling of eNB.
For downlink transfer, downlink physical control channel (PDCCH) and Physical Downlink Shared Channel are received in subframe n-k
(PDSCH), the hybrid automatic repeat-request response (HARQ-ACK) of the PDSCH and in sub-frame of uplink n is fed back, wherein for FDD
The value of system, k is constantly equal to 4, and for TDD system, the value of k is determined by the uplink-downlink configuration of TDD, as shown in table 2.
2 TDD system downlink relation integration of table indexes K:{ k0, k1 ... kM-1 }
Raising with user to data transmission rates demands, people have also been proposed enhancing (LTE-A) technology of LTE.?
In LTE-A, more subframe scheduling technologies are received more and more attention.So-called more subframe schedulings, i.e. dispatch command and scheduled son
It is no longer one-to-one relationship between frame, but a dispatch command can dispatch one or more downlink subframes simultaneously, such as
Shown in Fig. 1.By this technology, the resource overhead of scheduling instruction can be saved.
But the PDCCH of a subframe will dispatch the transmission of the PDSCH of multiple subframes in more subframe schedulings, and according to existing mark
Certainly adopted, the PDCCH of a downlink subframe can only dispatch the PDSCH of a subframe, and the control information of current PDCCH cannot expire
The PDCCH of one subframe of foot dispatches the demand of the PDSCH of multiple subframes simultaneously, the characteristics of therefore, it is necessary to according to more subframe schedulings,
Rethink the control information transmission problem in PDCCH.
Summary of the invention
This application provides the implementation methods and device of more subframe schedulings of PDSCH, to realize the PDCCH tune of a subframe
Spend the purpose of the PDSCH of multiple subframes.
This application discloses a kind of implementation methods of more subframe schedulings of Physical Downlink Shared Channel, comprising:
UE receives configuration information from base station, and the configuration information configuration UE works in more subframe scheduling operating modes；
UE is on the subframe collection of Physical Downlink Control Channel (PDCCH) blind Detecting of more subframe scheduling operating modes of configuration
PDCCH is received, and parses more subframe scheduling control information from the PDCCH received；
More subframe schedulings control information that UE is obtained according to parsing receives Physical Downlink Shared Channel (PDSCH) data, and
HARQ-ACK information is fed back according to corresponding HARQ-ACK timing relationship.
Preferably, the configuration information further configures the subframe collection of the PDCCH blind Detecting, each PDCCH is dispatched
Maximum PDSCH number of sub-frames, PDCCH blind Detecting subframe collection in each subframe the more subframe schedulings of PDCCH PDSCH subframe
Collection；
It is described parsed from the PDCCH received more subframe schedulings control information include: according to each PDCCH scheduling most
Big PDSCH number of sub-frames determines the length of more subframe scheduling control information, where subframe schedulings more in PDCCH control information
Domain obtains more subframe schedulings and controls information.
Preferably, UE configures the subframe collection of the PDCCH blind Detecting by predefined mode, each PDCCH is dispatched
Maximum PDSCH number of sub-frames, PDCCH blind Detecting subframe collection in each subframe the more subframe schedulings of PDCCH PDSCH subframe
Collection；
It is described parsed from the PDCCH received more subframe schedulings control information include: according to each PDCCH scheduling most
Big PDSCH number of sub-frames determines the length of more subframe scheduling control information, where subframe schedulings more in PDCCH control information
Domain obtains more subframe schedulings and controls information.
Preferably, UE the PDSCH of received each subframe be that more subframe schedulings are carried out by the PDCCH of a subframe；
Alternatively, UE the PDSCH of received each subframe be that more subframes are carried out by the PDCCH of a subframe or multiple subframes
Scheduling.
Preferably, more subframe schedulings control information reception PDSCH data that the UE is obtained according to parsing include:
For the PDSCH of multiple subframes of the PDCCH scheduling of same subframe, PDSCH is received in identical PDSCH resource
Data；Wherein, identical transmitting power control (TPC) is used to the PDSCH of the multiple subframe, to the multiple subframe
The identical modulation coding method of same data block (MCS), identical new data instruction (NDI) and the identical redundancy version of PDSCH
This (RV), the PDSCH of the multiple subframe is identified using same HARQ procedure, and the number of PDSCH transmission is judged by NDI value
According to be new biography transmission of data or retransmit data.
Preferably, multiple subframes that the PDCCH of the same subframe is dispatched belong to the same HARQ-ACK downlink incidence set
It closes；
Alternatively, multiple subframes that the PDCCH of the same subframe is dispatched belong to different HARQ-ACK downlink relation integrations,
And the PDCCH scheduled all downlink subframes in the different HARQ-ACK downlink relation integration.
Preferably, the UE receives configuration information from base station are as follows: it is PDCCH format 1A's that UE, which receives transformat from base station,
Configuration information；
The UE receives PDCCH on the subframe collection of the PDCCH blind Detecting of more subframe scheduling operating modes of configuration are as follows: UE
According to more subframe scheduling operating modes, integrates in the subframe of the PDCCH blind Detecting of configuration and receive transformat as PDCCH format 1/
The PDCCH of 1B/1D/2/2A/2B/2C/2D.
Preferably, described feed back HARQ-ACK information according to corresponding HARQ-ACK timing relationship are as follows:
At the time of according to the HARQ-ACK information for feeding back the PDSCH data is determined at the time of receiving PDSCH data, in institute
The HARQ-ACK information of the PDSCH data is fed back at the time of determination.
Disclosed herein as well is a kind of devices, for realizing more subframe schedulings of Physical Downlink Shared Channel, comprising:
Configuration module, for receiving configuration information from base station, the configuration information configuration UE works in more subframe scheduling works
Operation mode；
Receiving module, Physical Downlink Control Channel (PDCCH) blind examination for more subframe scheduling operating modes in configuration
PDCCH is received on the subframe collection of survey, and more subframe scheduling control information are parsed from the PDCCH received；And for according to solution
It analyses obtained more subframe schedulings control information and receives Physical Downlink Shared Channel (PDSCH) data；
Feedback module, for feeding back HARQ-ACK information according to corresponding HARQ-ACK timing relationship.
As seen from the above technical solution, the implementation of more subframe schedulings of PDSCH provided by the present application is by matching UE
Be set to and work in more subframe scheduling operating modes, and by UE more subframe scheduling operating modes of configuration PDCCH blind Detecting
PDCCH is received on subframe collection, and parses from the PDCCH received more subframe schedulings control information, and last UE is according to parsing
The more subframe schedulings control information arrived receives PDSCH data, and the PDCCH for realizing a subframe dispatches the PDSCH of multiple subframes
Purpose.
Detailed description of the invention
Fig. 1 is the contrast schematic diagram of list frame scheduling and more subframe schedulings；
Fig. 2 is a kind of flow diagram of more subframe scheduling methods of PDSCH of the application；
Fig. 3 is that the more subframe schedulings of the application control the signal that information indicates scheduled subframe by the way of bit map
Figure；
Fig. 4 is indicated by the way of bit map scheduled for subframe schedulings control information more in the embodiment of the present application one
The schematic diagram of subframe；
Fig. 5 is to indicate that the data of PDSCH transmission are new biography transmission of data or re-transmission using NDI value in the embodiment of the present application three
The schematic diagram of data；
Fig. 6 is the schematic diagram of the same position of the same HARQ procedure of the application；
Fig. 7 is 1 schematic diagram of the case where PDCCH of a subframe in the embodiment of the present application four dispatches multiple downlink subframes；
Fig. 8 is 2 schematic diagrames of the case where PDCCH of a subframe in the embodiment of the present application four dispatches multiple downlink subframes；
Fig. 9 is 2 schematic diagrames of the case where PDCCH of a subframe in the embodiment of the present application four dispatches multiple downlink subframes；
Figure 10 is the composed structure schematic diagram of the preferable terminal of the application one.
Specific embodiment
It is right hereinafter, referring to the drawings and the embodiments, for the objects, technical solutions and advantages of the application are more clearly understood
The application is described in further detail.
In more subframe scheduling systems, since descending scheduling instructs the corresponding relationship between scheduled downlink subframe to send out
Change is given birth to, therefore the dispatching method of PDSCH is no longer applicable in existing standard, in order to effectively dispatch PDSCH, needed for more
The characteristics of subframe scheduling system, proposes the dispatching method of new PDSCH.
Fig. 2 is a kind of flow diagram of more subframe scheduling methods of PDSCH of the application, comprising the following steps:
Step 201:UE receives configuration information from base station, and the configuration information configuration UE works in more subframe scheduling Working moulds
Formula.
UE works in more subframe scheduling operating modes from the received configuration information configuration UE in base station, which can be same
When configure more subframe scheduling operating modes PDCCH blind Detecting subframe collection, the subframe collection of the PDCCH blind Detecting can be institute
The set of some downlink subframes, it is also possible to the subset of all downlink subframe set.The PDCCH of more subframe scheduling operating modes is blind
The subframe collection of detection can also be defined in the protocol.
Step 202:UE is received on the subframe collection of the PDCCH blind Detecting of the more subframe scheduling operating modes configured
PDCCH, and more subframe scheduling control information are parsed from the PDCCH received.
More subframe schedulings control information that step 203:UE is obtained according to parsing receives PDSCH data, and according to corresponding
HARQ-ACK timing relationship feeds back HARQ-ACK information.
In step 202 shown in Fig. 2, need to parse more subframe scheduling control information from the PDCCH received, below to tool
The analytic method of body is illustrated.
Currently, for each transmission mode, there are two types of transformats by the distinctive PDCCH of UE: a kind of transformat is PDCCH
Format 1A, another transformat are PDCCH format 1/1B/1D/2/2A/2B/2C/2D.It may be stipulated that: PDCCH format 1A is not
Support more subframe scheduling operating modes, and PDCCH format 1/1B/1D/2/2A/2B/2C/2D supports more subframe scheduling Working moulds
Formula, in this way, can issue configuration information by PDCCH format 1A, configuration UE works in more subframe scheduling operating modes, in this way,
UE will integrate in the subframe of the PDCCH blind Detecting of configuration according to more subframe scheduling operating modes and receive transformat as PDCCH lattice
The PDCCH of formula 1/1B/1D/2/2A/2B/2C/2D.
Alternatively, it may be stipulated that: PDCCH format 1A and PDCCH format 1/1B/1D/2/2A/2B/2C/2D supports mostly son
Frame scheduling operating mode needs to configure UE by other means and works in more subframe scheduling operating modes, example in this case
Such as: being configured by system information.
More subframe scheduling control information can be a domain in PDCCH, which can be the bit newly increased,
Existing bit can be redefined or define existing filling bit, specific indicating means the application is without limitation.For example, can be with
Indicate the PDSCH subframe of PDCCH scheduling in this domain using the method for bit map, the application will be subsequent to be with the indicating means
Example is illustrated.The length of more subframe scheduling control information is the number of sub-frames for the PDSCH that a PDCCH may be dispatched, and UE can
To determine the length of more subframe schedulings control information by reception high-level signaling or the control can be directly given by 3GPP agreement
The length of information.Fig. 3 is that the more subframe schedulings control information of the application indicate scheduled subframe by the way of bit map
Schematic diagram, according to Fig. 3, if the corresponding more subframe scheduling control information bits of subframe are " 1 ", then it represents that the subframe is scheduled,
If the corresponding more subframe scheduling control information bits of subframe are " 0 ", then it represents that the subframe is not scheduled.
More subframe scheduling methods of the application PDSCH, herein described more subframe tune are described in detail below by embodiment
Degree method is suitable for PDCCH format 1/1B/1D/2/2A/2B/2C/2D or is suitable for PDCCH format 1/1A/1B/1D/2/2A/
2B/2C/2D is illustrated by taking PDCCH format 2C as an example below.
Embodiment one:
In the present embodiment, the position for the PDCCH that UE is detected under more subframe scheduling operating modes is configured by high-level signaling, often
The PDSCH of a subframe can only be carried out more subframe schedulings by the PDCCH of a subframe, and the high-level signaling that UE is received includes three portions
The information divided: first part is the maximum PDSCH number of sub-frames of each PDCCH scheduling, and second part is more subframe schedulings work
The subframe collection of the PDCCH blind Detecting of mode, Part III are the PDCCH of each subframe in the subframe collection of PDCCH blind Detecting
The PDSCH subframe collection of more subframe schedulings.
It is illustrated below with the maximum PDSCH number of sub-frames of PDCCH scheduling for 2, what a PDCCH was dispatched
Maximum PDSCH number of sub-frames is not limited to 2, and such as 3,4 or more, it does not elaborate here.
For being configured to the UE of FDD, it is assumed that the subframe collection of the PDCCH blind Detecting of more subframe scheduling operating modes of configuration is
{ 0,2,4,6,8 }, also, UE is 2 by receiving the length that high-level signaling determines that more subframe schedulings control information, the present embodiment
In, subframe n of the UE in the subframe collection { 0,2,4,6,8 } of the PDCCH blind Detecting of more subframe scheduling operating modes detects more subframes
The PDSCH subframe collection of the PDCCH scheduling of the PDCCH of scheduling, subframe n is shown in Table 3.According to shown in table 3, each downlink subframe dispatches two
A downlink subframe, such as: the PDCCH that UE is detected in subframe 0 may scheduling subframe 0 and subframe 1, instruction side as shown in connection with fig. 3
Formula, if more subframe schedulings control information in the PDCCH that subframe 0 detects is " 01 ", due to instruction subframe 0
More subframe scheduling control information bits are " 0 ", indicate that subframe 0 is not scheduled, since more subframe schedulings of instruction subframe 1 control letter
Ceasing bit is " 1 ", indicates that subframe 1 is scheduled.
Table 3
| Sub-frame number n | The PDSCH subframe collection of the PDCCH scheduling of subframe n |
| 0 | {0,1} |
| 2 | {2,3} |
| 4 | {4,5} |
| 6 | {6,7} |
| 8 | {8,9} |
For being configured to the UE of TDD, it is assumed that the TDD upstream and downstream of UE be configured to TDD upstream and downstream configuration 5, configuration it is more
The subframe collection of the PDCCH blind Detecting of subframe scheduling operating mode is { 9,1,3,5,7 }, also, UE is true by receiving high-level signaling
The length of fixed more subframe scheduling control information is 2, in the present embodiment, PDCCH blind Detecting of the UE in more subframe scheduling operating modes
Subframe collection { 9,1,3,5,7 } in sub-frame number n detect the PDCCH of more subframe schedulings, the PDCCH scheduling of sub-frame number n
PDSCH subframe collection is shown in Table 4.According to shown in table 4, in subframe 9,3,5,7, each downlink subframe dispatches two downlink subframes, in son
Frame 1, each downlink subframe dispatch a downlink subframe.Such as: the PDCCH scheduling subframe 1 that UE is detected in subframe 1, it is assumed that more
Subframe scheduling control information indicates scheduled subframe by the way of bit map, if in the PDCCH that subframe 1 detects
More subframe schedulings control information be " 0x ", then due to instruction subframe 1 more subframe schedulings control information bit be " 0 ", indicate
Subframe 1 is not scheduled；If more subframe schedulings control information in the PDCCH detected at subframe 1 is " 1x ", due to instruction
More subframe schedulings control information bit of subframe 1 is " 1 ", indicates that subframe 1 is scheduled, as shown in Figure 4.
Table 4
| Sub-frame number n | The PDSCH subframe collection of the PDCCH scheduling of subframe n |
| 9 (radio frames M-1) | {9,0} |
| 1 (radio frames M) | {1} |
| 3 (radio frames M) | {3,4} |
| 5 (radio frames M) | {5,6} |
| 7 (radio frames M) | {7,8} |
Embodiment two:
The position for the PDCCH that UE is detected under more subframe scheduling operating modes is configured by high-level signaling, each subframe
PDSCH may carry out more subframe schedulings by the PDCCH of a subframe or multiple subframes, and the high-level signaling that UE is received includes following
The information of three parts: first part is the maximum PDSCH number of sub-frames of each PDCCH scheduling, and second part is more subframe tune
The subframe collection of the PDCCH blind Detecting of operating mode is spent, Part III is each subframe in the subframe collection of PDCCH blind Detecting
The PDSCH subframe collection of the more subframe schedulings of PDCCH.
It is illustrated below with the maximum PDSCH number of sub-frames of PDCCH scheduling for 2, what a PDCCH was dispatched
Maximum PDSCH number of sub-frames is not limited to 2, and such as 3,4 or more, it does not elaborate here.
For being configured to the UE of FDD, it is assumed that the PDCCH that the received high-level signaling of UE configures more subframe scheduling operating modes is blind
The subframe collection of detection is { 0,1,2,3,4,5,6,7,8,9 }, also, UE determines that more subframe schedulings control by receiving high-level signaling
The length of information is 2, in the present embodiment, UE the PDCCH blind Detecting of more subframe scheduling operating modes subframe collection 0,1,2,3,
4,5,6,7,8,9 } the sub-frame number n in detects the PDCCH of more subframe schedulings, PDSCH of the PDCCH scheduling of sub-frame number n
Frame collection is shown in Table 5.According to shown in table 5, each downlink subframe dispatches two downlink subframes, and each downlink subframe can be by multiple sons
The PDCCH of frame carries out more subframe schedulings, such as: UE is examined in the possible scheduling subframe 6,7 of PDCCH that subframe 6 detects in subframe 7
The possible scheduling subframe 7,8 of the PDCCH measured, subframe 7 can carry out more subframe schedulings by the PDCCH of subframe 6 or subframe 7.
Table 5
| Sub-frame number n | The PDSCH subframe collection of the PDCCH scheduling of subframe n |
| 0 | {0,1} |
| 1 | {1,2} |
| 2 | {2,3} |
| 3 | {3,4} |
| 4 | {4,5} |
| 5 | {5,6} |
| 6 | {6,7} |
| 7 | {7,8} |
| 8 | {8,9} |
| 9 | {9,0} |
For being configured to the UE of TDD, it is assumed that the PDCCH that the received high-level signaling of UE configures more subframe scheduling operating modes is blind
The subframe collection of detection is { 9,0,1,3,4,5,6,7,8 }, also, UE determines more subframe scheduling control letters by receiving high-level signaling
The length of breath is 2, in the present embodiment, UE the PDCCH blind Detecting of more subframe scheduling operating modes subframe collection 9,0,1,3,4,
5,6,7,8 } the sub-frame number n in detects the PDCCH of more subframe schedulings, the PDSCH subframe collection of the PDCCH scheduling of sub-frame number n
It is shown in Table 6.According to shown in table 6, in subframe 9,0,1,3,4,5,6,7, each downlink subframe dispatches two downlink subframes, in subframe 8,
Each downlink subframe dispatches a downlink subframe, this is because subframe 8 and subsequent subframe 9 are not belonging to the same HARQ-ACK bundle
Tie up window.Such as: UE may scheduling subframe 6,7 in the PDCCH that subframe 6 detects.
Table 6
| Sub-frame number n | The PDSCH subframe collection of the PDCCH scheduling of subframe n |
| 9 (radio frames M-1) | {9,0} |
| 0 (radio frames M) | {0,1} |
| 1 (radio frames M) | {1,3} |
| 3 (radio frames M) | {3,4} |
| 4 (radio frames M) | {4,5} |
| 5 (radio frames M) | {5,6} |
| 6 (radio frames M) | {6,7} |
| 7 (radio frames M) | {7,8} |
| 8 (radio frames M) | {8} |
Embodiment three:
In the present embodiment, all subframes in the PDSCH subframe collection of the PDCCH scheduling of a downlink subframe belong to same
HARQ procedure shares a HARQ procedure mark.
It is a kind of dispatch PDSCH PDCCH format indicating mode are as follows: same downlink subframe PDCCH scheduling it is multiple under
The PDSCH resource allocation of row subframe is identical, transmitting power control (Transmission power control, TPC) identical, institute
There is the same transmission block of subframe using the same modulation coding method (modulation and coding scheme, MCS), together
One new data instruction (new data indicator, NDI) and the same redundancy versions (redundancy version,
RV), as shown in table 7.
Table 7
The PDSCH of multiple subframes of the PDCCH scheduling of the same subframe belongs to the same HARQ procedure, utilizes 1 HARQ
The PDSCH of process ID instruction, multiple subframes of the same HARQ procedure instruction may be dispatched according in the same PDCCH
The position of PDSCH is one-to-one, i.e., the PDSCH of each subframe is to correspond to the HARQ procedure in the same HARQ procedure
Same position transmission, it is subsequent to will be explained in meaning expressed by same position.
For example, as shown in figure 3, if how sub- frame control information of the UE in the PDCCH that subframe 2 detects be " 11 ",
The PDSCH of subframe 2 and subframe 3 is scheduled, and subframe 2 is identical with the resource allocation of the PDSCH of subframe 3, subframe 2 and subframe 3
PDSCH belongs to the same HARQ procedure, shares the same HARQ procedure ID, the same data block of the PDSCH of subframe 2 and subframe 3
Using the same MCS, the same RV and the same NDI, the PDSCH transmission of subframe 2 and subframe 3 is determined using the same NDI
Data are new biography transmission of data or retransmit data.Specifically:
If NDI value is overturn compared with the NDI value of same position in the same HARQ procedure of last scheduled, son
The data of the PDSCH transmission of frame 2 and subframe 3 are new biography transmission of data, if NDI value and phase in the same HARQ procedure of last scheduled
It is not flipped compared with the NDI value of position, then the data of the PDSCH transmission of subframe 2 and subframe 3 are the identical bits of last scheduled
The re-transmission data for the data set.If the subframe of same position is not scheduled in the same HARQ procedure of last scheduled, by NDI
NDI value in the value same HARQ procedure scheduled with the last time in the PDCCH of same position is compared, to determine
The data of PDSCH transmission are new biography transmission of data or retransmit data.
Referring to Fig. 5, more subframe schedulings control information of the UE in the PDCCH that subframe Y is detected is " 10 ", then subframe Y
PDSCH is scheduled, and the NDI in PDCCH that subframe Y is detected is 1, and the PDCCH of the last scheduling of same HARQ procedure exists
The NDI in PDCCH detected at subframe X, subframe X is that the NDI in the PDCCH detected at 0, with subframe Y is overturn,
Then the data of the PDSCH transmission of subframe Y are new datas.More subframe schedulings in the PDCCH that UE is detected at subframe Z control letter
Breath is " 01 ", then the PDSCH of subframe Z+1 is scheduled, and the NDI in PDCCH detected at subframe Z is 0, same HARQ procedure
The PDCCH of the last time scheduling is in subframe Y, but there is no scheduling and subframe Z+1 to belong to same position by the PDCCH at subframe Y
Subframe Y+1, therefore the subframe of the same position of the last scheduling of same HARQ procedure is subframe X+1, due to being examined at subframe X
The NDI in PDCCH measured is 0, compared with the NDI in the PDCCH detected at subframe Z, is not flipped, therefore, subframe Z
+ 1 PDSCH is the re-transmission data of the data of subframe X+1.
Foregoing same position refers to: the ordinal position of the PDSCH scheduled in the PDCCH of same HARQ procedure ID
It is identical.Referring to Fig. 6, the PDSCH of subframe 2 scheduled in the PDCCH that detects at radio frames n subframe 2 is in HARQ procedure ID
PDCCH scheduling first position, the PDSCH of subframe 3 scheduled in the PDCCH detected at radio frames n subframe 2 is in should
HARQ procedure ID PDCCH scheduling second position, detected at radio frames n+1 subframe 4 using identical HARQ mistake
PDSCH scheduled in the PDCCH of journey ID in first position is the PDSCH of subframe 4, is detected at radio frames n+1 subframe 4
To the PDCCH using identical HARQ procedure ID scheduled in second position PDSCH be subframe 5 PDSCH, then
The PDSCH of PDSCH and radio frames the n+1 subframe 4 of radio frames n subframe 2 is the same position of same HARQ procedure, radio frames n
The PDSCH of PDSCH and radio frames the n+1 subframe 5 of frame 3 is the same position of same HARQ procedure.
Example IV:
UE detects the PDCCH of more subframe schedulings, multiple downlink subframes of the PDCCH scheduling of a subframe in subframe position n
Meet following one of two things:
Multiple downlink subframes of situation 1:PDCCH scheduling belong to the same HARQ-ACK downlink relation integration.The downlink
Relation integration (Downlink Associate set) explains in detail in 3GPP36.213, i.e., in the same sub-frame of uplink
The collection that PUCCH sends all downlink subframes of HARQ-ACK feedback information is collectively referred to as downlink relation integration.
Such as: as shown in fig. 7, the TDD upstream and downstream that UE is used is configured to TDD upstream and downstream configuration 2, according to TDD uplink
The HARQ-ACK timing relationship of downstream arrangements 2, the subframe 9 of radio frames n-1, the subframe 0 of radio frames n, subframe 1, subframe 3 are wireless
HARQ-ACK information is fed back in the subframe 7 of frame n, subframe 9, the subframe 0 of radio frames n, subframe 1, the subframe 3 of radio frames n-1 is one
The element of a downlink relation integration.Therefore, the subframe 9 of radio frames n-1 and the subframe 0 of radio frames n belong to same downlink incidence set
It closes, the subframe 9 of more than the 9 subframe scheduling radio frames n-1 of the subframe of radio frames n-1 and the subframe 0 of radio frames n are to meet this principle
's.
Multiple downlink subframes of situation 2:PDCCH scheduling belong to different HARQ-ACK downlink relation integrations, and scheduled
All downlink subframes in the different HARQ-ACK downlink relation integration.
Such as: as shown in figure 8, the TDD upstream and downstream that UE is used is configured to TDD upstream and downstream configuration 1, according to TDD uplink
The HARQ-ACK timing relationship of downstream arrangements 1:
Subframe 0, the subframe 1 of radio frames n feeds back HARQ-ACK information, the subframe of radio frames n in the subframe 7 of radio frames n
0, subframe 1 belongs to same downlink relation integration；
The subframe 4 of radio frames n feeds back HARQ-ACK information in the subframe 8 of radio frames n, the subframe 4 of radio frames n belongs to one
The element of a downlink relation integration.
Subframe 0, the subframe of the subframe 1 of radio frames n and radio frames n of more than the 0 subframe scheduling radio frames n of the subframe of radio frames n
The subframe 4 of the subframe 0 of radio frames n, the subframe 1 of radio frames n and radio frames n that the PDCCH of the subframe 0 of 4, radio frames n is dispatched belong to
In two difference HARQ-ACK downlink relation integrations, but the subframe of the subframe 0 of radio frames n, the subframe 1 of radio frames n and radio frames n
4 be all elements in scheduled downlink relation integration, belongs to this case.
In another example as shown in figure 9, UE be FDD configuration, according to the HARQ-ACK timing relationship of FDD:
The subframe 0 of radio frames n feeds back HARQ-ACK information in the subframe 4 of radio frames n, and the subframe 0 of radio frames n belongs to one
A downlink relation integration；
The subframe 1 of radio frames n feeds back HARQ-ACK information in the subframe 5 of radio frames n, and the subframe 1 of radio frames n belongs to separately
One downlink relation integration.
The subframe 0 of more than the 0 subframe scheduling radio frames n of the subframe of radio frames n and the subframe 1 of radio frames n, the subframe 0 of radio frames n
PDCCH scheduling the subframe 0 of radio frames n, the subframe 1 of radio frames n belong to two difference HARQ-ACK downlink relation integrations, but
Subframe 0, the subframe 1 of radio frames n of radio frames n are all elements in two scheduled downlink relation integrations, are to belong to this
One situation.
For situation 1, since the PDSCH of PDCCH scheduling belongs to 1 downlink relation integration, the DAI energy in PDCCH
It is enough correctly to work, it is ensured that identical with the understanding of terminal in base station for the bit of the HARQ-ACK feedback information of feedback；For
Situation 2 is not needed at this time since a PDCCH scheduled all elements in downlink relation integration with DAI indicating downlink subframe
PDSCH dispatch situation, base station and terminal will not generate different understanding to the bit of HARQ-ACK feedback information.
Preferably, the HARQ-ACK transmission of PDSCH follows HARQ-ACK when non-more subframe schedulings in above-mentioned steps 203
The transmission time of timing relationship, the HARQ-ACK information of PDSCH is determined by the transmission time of PDSCH, with scheduling PDSCH's
The transmission time of PDCCH is unrelated, as shown in Figure 9.The PDCCH scheduling subframe 0 of subframe 0 and/or the PDSCH of subframe 1, subframe 0
The HARQ-ACK information of PDSCH is fed back in subframe 4, and the HARQ-ACK information of the PDSCH of subframe 1 is fed back in subframe 5, subframe 0
The HARQ-ACK that the PDSCH of resource used in the HARQ-ACK information that PDSCH is fed back in subframe 4 and subframe 1 is fed back in subframe 5
Resource used in information is first using the minimum control channel of the PDCCH of the PDSCH of scheduling subframe 0 and/or subframe 1 in subframe 0
Plain (CCE) is obtained or is obtained by mixed automatic retransfer response resource instruction (ARI) instruction, and the PDSCH of subframe 0 is anti-in subframe 4
Money used in the HARQ-ACK information that the PDSCH of resource used in the HARQ-ACK information of feedback and subframe 1 feed back in subframe 5
The position in source is identical.
Corresponding to the above method, this application discloses a kind of terminals, and as shown in Figure 10, the terminal is for realizing physical down
More subframe schedulings of shared channel, comprising:
Configuration module, for receiving configuration information from base station, the configuration information configuration UE works in more subframe scheduling works
Operation mode；
Receiving module, Physical Downlink Control Channel (PDCCH) blind examination for more subframe scheduling operating modes in configuration
PDCCH is received on the subframe collection of survey, and more subframe scheduling control information are parsed from the PDCCH received；And for according to solution
It analyses obtained more subframe schedulings control information and receives Physical Downlink Shared Channel (PDSCH) data；
Feedback module, for feeding back HARQ-ACK information according to corresponding HARQ-ACK timing relationship.
The foregoing is merely the preferred embodiments of the application, not to limit the application, all essences in the application
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the application protection.
Claims (14)
1. a kind of implementation method of more subframe schedulings of Physical Downlink Shared Channel characterized by comprising
UE receives configuration information from base station, and the configuration information configuration UE works in more subframe scheduling operating modes；
UE is received on the subframe collection of the physical downlink control channel PDCCH blind Detecting of more subframe scheduling operating modes of configuration
PDCCH, and more subframe scheduling control information are parsed from the PDCCH received；
More subframe schedulings control information that UE is obtained according to parsing receives Physical Downlink Shared Channel PDSCH data, and according to phase
The HARQ-ACK timing relationship feedback HARQ-ACK information answered；
Wherein:
Multiple subframes of the PDCCH scheduling of same subframe belong to the same HARQ-ACK downlink relation integration；
Alternatively, multiple subframes that the PDCCH of same subframe is dispatched belong to different HARQ-ACK downlink relation integrations, and described
PDCCH scheduled all downlink subframes in the different HARQ-ACK downlink relation integration.
2. according to the method described in claim 1, it is characterized by:
The configuration information further configures maximum PDSCH of the subframe collection of the PDCCH blind Detecting, each PDCCH scheduling
Frame number, PDCCH blind Detecting subframe collection in each subframe the more subframe schedulings of PDCCH PDSCH subframe collection；
The more subframe schedulings control information that parse from the PDCCH received include: the maximum dispatched according to each PDCCH
PDSCH number of sub-frames determines the length of more subframe scheduling control information, the domain where controlling information from subframe schedulings more in PDCCH
Obtain more subframe scheduling control information.
3. according to the method described in claim 1, it is characterized by:
UE configures maximum PDSCH of the subframe collection of the PDCCH blind Detecting, each PDCCH scheduling by predefined mode
Frame number, PDCCH blind Detecting subframe collection in each subframe the more subframe schedulings of PDCCH PDSCH subframe collection；
The more subframe schedulings control information that parse from the PDCCH received include: the maximum dispatched according to each PDCCH
PDSCH number of sub-frames determines the length of more subframe scheduling control information, the domain where controlling information from subframe schedulings more in PDCCH
Obtain more subframe scheduling control information.
4. method according to any one of claims 1 to 3, it is characterised in that:
UE the PDSCH of received each subframe be that more subframe schedulings are carried out by the PDCCH of a subframe；
Alternatively, UE the PDSCH of received each subframe be that more subframe schedulings are carried out by the PDCCH of a subframe or multiple subframes
's.
5. method according to any one of claims 1 to 3, which is characterized in that more subframes that the UE is obtained according to parsing
Scheduling control information receives PDSCH data
For the PDSCH of multiple subframes of the PDCCH scheduling of same subframe, PDSCH number is received in identical PDSCH resource
According to；Wherein, identical transmitting power control TPC is used to the PDSCH of the multiple subframe, to the PDSCH of the multiple subframe
Same data block using identical modulation coding method MCS, identical new data indicate NDI and identical redundancy versions RV,
The PDSCH of the multiple subframe is identified using same HARQ procedure, and judges that the data of PDSCH transmission are new by NDI value
Transmission data still retransmit data.
6. method according to any one of claims 1 to 3, it is characterised in that:
The UE receives configuration information from base station are as follows: UE receives the configuration information that transformat is PDCCH format 1A from base station；
The UE receives PDCCH on the subframe collection of the PDCCH blind Detecting of more subframe scheduling operating modes of configuration are as follows: UE according to
More subframe scheduling operating modes integrate in the subframe of the PDCCH blind Detecting of configuration and receive transformat as PDCCH format 1/1B/
The PDCCH of 1D/2/2A/2B/2C/2D.
7. method according to any one of claims 1 to 3, which is characterized in that described according to corresponding HARQ-ACK timing
Relationship feeds back HARQ-ACK information are as follows:
At the time of according to the HARQ-ACK information for feeding back the PDSCH data is determined at the time of receiving PDSCH data, determining
At the time of feed back the HARQ-ACK information of the PDSCH data.
8. a kind of device for the more subframe schedulings for realizing Physical Downlink Shared Channel characterized by comprising
Configuration module, for receiving configuration information from base station, the configuration information configuration UE works in more subframe scheduling Working moulds
Formula；
Receiving module, the son of the physical downlink control channel PDCCH blind Detecting for more subframe scheduling operating modes in configuration
PDCCH is received on frame collection, and more subframe scheduling control information are parsed from the PDCCH received；And for being obtained according to parsing
More subframe schedulings control information receive Physical Downlink Shared Channel PDSCH data；
Feedback module, for feeding back HARQ-ACK information according to corresponding HARQ-ACK timing relationship；
Wherein:
Multiple subframes of the PDCCH scheduling of same subframe belong to the same HARQ-ACK downlink relation integration；
Alternatively, multiple subframes that the PDCCH of same subframe is dispatched belong to different HARQ-ACK downlink relation integrations, and described
PDCCH scheduled all downlink subframes in the different HARQ-ACK downlink relation integration.
9. device according to claim 8, it is characterised in that:
The configuration information further configures maximum PDSCH of the subframe collection of the PDCCH blind Detecting, each PDCCH scheduling
Frame number, PDCCH blind Detecting subframe collection in each subframe the more subframe schedulings of PDCCH PDSCH subframe collection；
The receiving module, the maximum PDSCH number of sub-frames for being dispatched according to each PDCCH determine more subframe scheduling control letters
The length of breath, the more subframe schedulings control information of domain acquisition where controlling information from subframe schedulings more in PDCCH.
10. device according to claim 8, it is characterised in that:
The configuration module configures the subframe collection of the PDCCH blind Detecting, each PDCCH scheduling by predefined mode most
The PDSCH subframe of the more subframe schedulings of PDCCH of each subframe greatly in the subframe collection of PDSCH number of sub-frames, PDCCH blind Detecting
Collection；
The receiving module, the maximum PDSCH number of sub-frames for being dispatched according to each PDCCH determine more subframe scheduling control letters
The length of breath, the more subframe schedulings control information of domain acquisition where controlling information from subframe schedulings more in PDCCH.
11. according to the described in any item devices of claim 8 to 10, it is characterised in that:
The receiving module the PDSCH of received each subframe be that more subframe schedulings are carried out by the PDCCH of a subframe；
Alternatively, the receiving module received each subframe PDSCH be by the PDCCH of a subframe or multiple subframes carry out
More subframe schedulings.
12. according to the described in any item devices of claim 8 to 10, it is characterised in that:
The receiving module, the PDSCH of multiple subframes for the PDCCH scheduling to same subframe, in identical PDSCH resource
Upper reception PDSCH data；Wherein, identical transmitting power control TPC is used to the PDSCH of the multiple subframe, to described more
The same data block of the PDSCH of a subframe uses identical modulation coding method MCS, identical new data instruction NDI and identical
Redundancy versions RV, the PDSCH of the multiple subframe is identified using same HARQ procedure, and by NDI value judge PDSCH biography
Defeated data are new biography transmission of data or retransmit data.
13. according to the described in any item devices of claim 8 to 10, it is characterised in that:
The configuration module, for receiving the configuration information that transformat is PDCCH format 1A from base station；
The receiving module, for being received on the subframe collection of the PDCCH blind Detecting of configuration according to more subframe scheduling operating modes
Transformat is the PDCCH of PDCCH format 1/1B/1D/2/2A/2B/2C/2D.
14. according to the described in any item devices of claim 8 to 10, it is characterised in that:
The feedback module, for according to the HARQ-ACK letter for determining the feedback PDSCH data at the time of receiving PDSCH data
At the time of breath, the HARQ-ACK information of the PDSCH data is fed back at the identified moment.
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| CN105743625A (en) * | 2014-12-10 | 2016-07-06 | 中兴通讯股份有限公司 | Method and device for implementing downlink coordinated multiple point transmission |
| CN105722239A (en) * | 2016-02-05 | 2016-06-29 | 宇龙计算机通信科技(深圳)有限公司 | Method for detecting dispatching instruction and terminal |
| CN105764146B (en) * | 2016-02-05 | 2019-03-08 | 宇龙计算机通信科技(深圳)有限公司 | A kind of method of sub-frame configuration, method, relevant device and the system of data transmission |
| CN107889239B (en) | 2016-09-30 | 2020-10-16 | 华为技术有限公司 | Method and equipment for sending and receiving uplink control information |
| CN108401486A (en) * | 2017-11-17 | 2018-08-14 | 北京小米移动软件有限公司 | The instruction of hybrid automatic repeat-request feedback, feedback method and device and base station |
| WO2019127250A1 (en) * | 2017-12-28 | 2019-07-04 | 北京小米移动软件有限公司 | Data transmission method, device and system, and computer readable storage medium |
| WO2020029144A1 (en) * | 2018-08-08 | 2020-02-13 | 北京小米移动软件有限公司 | Hybrid automatic repeat request (harq) feedback method and apparatus |
| SG11202104176XA (en) * | 2018-10-30 | 2021-05-28 | Beijing Xiaomi Mobile Software Co Ltd | Data transmission method and device, and readable storage medium |
| CN111901883B (en) * | 2019-05-05 | 2023-03-31 | 成都鼎桥通信技术有限公司 | Multi-subframe resource scheduling method in LTE system and base station equipment |
| CN113141654B (en) * | 2020-01-19 | 2022-12-02 | 成都鼎桥通信技术有限公司 | Downlink resource scheduling authorization method and system |
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| CN102137504A (en) * | 2011-04-12 | 2011-07-27 | 电信科学技术研究院 | Method and device for dispatching transmission of multiple sub-frames |
| EP2434818A1 (en) * | 2009-05-22 | 2012-03-28 | Huawei Technologies Co., Ltd. | Method for dispatching multi sub-frames and the system, the terminal and the base station thereof |
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| CN102202408B (en) * | 2010-03-22 | 2014-01-01 | 华为技术有限公司 | Method, system and device for scheduling multiple subframes |
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| CN102137504A (en) * | 2011-04-12 | 2011-07-27 | 电信科学技术研究院 | Method and device for dispatching transmission of multiple sub-frames |
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