CN104243108B - Uplink hybrid automatic repeat request feedback method, device and system - Google Patents
Uplink hybrid automatic repeat request feedback method, device and system Download PDFInfo
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Abstract
The present invention provides a kind of uplink hybrid automatic repeat request feedback methods, device and system.It is related to wireless communication field；It solves the problems, such as eNB and can not indicate UE not to be that HARQ process redistributes new PUSCH resource again.This method comprises: eNB receives the PUSCH transmission data block that UE is sent, and carry out CRC check；After completing CRC check, the eNB sends ePDCCH in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block, and indicating the UE no longer is that HARQ process distributes new PUSCH resource.Technical solution provided by the invention realizes the HARQ mechanism based on ePDCCH suitable for LTE and A-LTE system.
Description
Technical field
The present invention relates in wireless communication field more particularly to a kind of mobile communication system, the upper of ePDCCH channel is utilized
Row hybrid automatic repeat-request feedback method, device and system.
Background technique
In long term evolution (Long Term Evolution, LTE) standard and long term evolution (the Long Term of enhancing
Evolution-Advanced, LTE-A) in standard evolution, the hybrid automatic repeat-request (Hybrid of uplink business data block
Automatic Repeat request, HARQ) feedback be that base station (evolved Node B, evolved Node B, eNB) passes through
Physical HARQ Indicator Channel (Physical HARQ Indicator Channel, PHICH) channel is to user equipment (User
Equipment, UE) transmission confirmation character/negative confirmation character (Acknowledgement/Negative
Acknowledgement, ACK/NACK) information.If the uplink data block that UE is sent is properly received by eNB, eNB will be
PHICH channel is to UE feeding back ACK information., whereas if the uplink data block that UE is sent is not properly received by eNB, then should
Uplink data block can be retransmitted using synchronous non-self-adapting, can also be retransmitted using synchronous self-adapting.In FDD LTE system, on
The sequential relationship of row scheduling HARQ is as shown in Figure 1.If uplink business data block is retransmitted using synchronous non-self-adapting, eNB
Nack message is transmitted to UE by PHICH channel；And if uplink business data block is retransmitted using synchronous self-adapting, eNB if, can
To pass through Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH) channel or enhancing
PDCCH(enhanced PDCCH, ePDCCH) to UE transmit the re-transmitting data block retransfer scheduling control information.
In LTE system networking, the reception accuracy of the HARQ feedback on PHICH channel is required very high, it is therefore an objective to
It avoids unnecessary data from retransmitting and ascending resource is caused to waste, or avoids not having to retransmit due to packet loss in time because of data block
The phenomenon that.But PHICH channel will receive the interference of neighboring community, then the quality of reception of the UE on PHICH channel will decline,
The accuracy that UE receives HARQ feedback on PHICH channel is difficult to ensure.Particularly, in LTE standard and LTE-A standard evolution
In, in order to which lifting system handling capacity introduces heterogeneous network especially for the handling capacity for improving hot zones
The group-network construction of (Heterogeneous Network, HetNet), as shown in Fig. 2, being disposed in macro station coverage area a large amount of micro-
It stands to promote the service quality of hot zones and handling capacity.For the networking structure of HetNet, since macro station and micro- station are same cover
Cover area, while the transmission power of macro station is far longer than the transmission power at micro- station, so necessarily will cause macro station to the strong of micro- station
Interference, the control channel at especially micro- station will be by even more serious interference.Therefore, in HetNet network, PHICH channel
The quality of reception and performance will more deteriorate, and micro- station will by the probability that mistake occurs for the ACK/NACK that PHICH channel is fed back to UE
It can sharply increase, so as to cause a large amount of unnecessary data block retransmissions, or cause due to data block does not obtain retransmitting in time
There is a phenomenon where a large amount of packet losses.
In order to preferably guarantee micro- station control information transmission quality, in the 3rd generation partner program (3rd
Generation Partnership Project, 3GPP) standard R11(Release11) ePDCCH channel is introduced in version.
The effect of the PDCCH of ePDCCH and 3GPP standard R8/9 version and purpose be it is the same, the physical down that can be used for UE is shared
Channel (Physical downlink Shared Channel, PDSCH) or Physical Uplink Shared Channel (Physical
Uplink Shared Channel, PUSCH) scheduling information instruction.But ePDCCH and 3GPP standard R8/9 version
PDCCH/PHICH resource location is different, and ePDCCH is no longer sent in the control area of backward compatibility carrier wave, but uses frequency division multiple
It is shared using in 3GPP standard R8/9 with the mode and PDSCH of (Frequency Division Multiplexing, FDM)
Data area, for sending Downlink Control Information (Downlink Control Information, DCI) information；In addition,
EPDCCH is also no longer demodulated using cell reference signals (Cell-specific Reference Signal, CRS), but
It is demodulated using demodulated reference signal (Demodulation Reference Signal, DMRS).
Therefore, compared to PDCCH channel and PHICH channel, ePDCCH has a following advantage: first, not by 3GPP standard R8/
The capacity limit of control area in 9, the capacity of ePDCCH are bigger；Second, it is demodulated using DMRS, ePDCCH can be assigned using wave beam
The mode of shape emits, and improves the detection performance of receiving end；Third is demodulated using DMRS, particularly, for HetNet networking scene
Under, the down control channel at micro- station can avoid the strong jamming of macro station CRS, improve precision of channel estimation；4th, ePDCCH can be with
Use frequency domain ICIC(Inter Cell interference coordination Inter-Cell Interference Coordination) technology, improves cell
The quality of reception of edge customer；Five: ePDCCH can be using frequency domain selectively scheduling (Frequency Selected
Schedule, FSS), it can be improved spectrum efficiency and transmission performance；6th, PHICH(such as new carrier type can not be sent in eNB
DMRS can only be passed through in (New Carrier Type, NCT) and carry out downlink signal demodulation) or when can not send PHICH in time (such as
Macro station sends CRS and micro- station does not send CRS, and is non-ideal Backhaul between macro micro- station, i.e., between macro and micro
When Backhaul propagation delay time is bigger), need micro- station by ePDCCH channel to UE transmitting scheduling information instruction or adaptive
Retransfer scheduling instruction；Data block retransmissions particularly with uplink PUSCH channel are sync retransmissions, and ACK/NACK feedback time is fixed
When feed back, therefore can not or can not in time by PHICH channel to UE send HARQ feedback when, eNB can pass through ePDCCH
Channel dispatches the re-transmitting data block of PUSCH channel.
In the Article 6 advantage of above-mentioned ePDCCH, if it is eNB in the corresponding downlink retransfer scheduling subframe of PUSCH
It synchronizes adaptive retransmission or dispatches the new data block of the HARQ process, then that can not send or can not send in time
When PHICH, it can use ePDCCH and carry out PUSCH adaptive retransmission or dispatch new data block.Other than such case, if
ENB can not send or can not send in time PHICH, it will go wrong.Such as: if eNB is properly received the PUSCH transmission of UE
Block and eNB no longer dispatch the new biography data block of the HARQ process, and it is new not to be that the HARQ process is redistributed again by eNB in other words
PUSCH resource.To sum up, can not indicate UE no longer there are eNB in existing HARQ implementation is that HARQ process is redistributed again
The problem of new PUSCH resource.
Summary of the invention
The present invention provides a kind of uplink hybrid automatic repeat request feedback methods, devices and systems, solve eNB without
Method indicates that UE is not the problem of HARQ process redistributes new PUSCH resource again.
A kind of method of uplink hybrid automatic repeat request feedback, comprising:
ENB receives the PUSCH transmission data block that UE is sent, and carries out CRC check；
After completing CRC check, the eNB is in pair for retransmitting subframe next time for dispatching the PUSCH transmission data block
Downlink subframe is answered to send ePDCCH, indicating the UE no longer is that HARQ process distributes new PUSCH resource.
2, uplink hybrid automatic repeat request feedback method according to claim 1, which is characterized in that the eNB
Sending ePDCCH in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block includes:
The eNB is in the resource block distribution of the ePDCCH and frequency-hopping resource position instruction (Resource block
Assignment and hopping resource allocation) domain field filling particular bit string, the particular bit
The value of string exceeds the position range of normal resource distribution, and the special string number of bits is the Resource block
The number of bits of the domain assignment and hopping resource allocation field；
The eNB is in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block to described
UE sends the ePDCCH, indicates that eNB described in the UE is properly received the PUSCH data block and discharges the UE and currently occupies
HARQ process resource.
Preferably, the eNB is in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block
Sending ePDCCH includes:
Resource block assignment and hopping resource of the eNB in ePDCCH
The domain allocation field fills invalid Bit String, and the bit value in the domain NDI on DCI that the ePDCCH is carried is set to
The value in the domain NDI when sending ePDCCH with overturning last；
The eNB is in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block to described
UE sends the ePDCCH, indicates that eNB described in the UE is properly received the PUSCH data block and discharges the UE and currently occupies
HARQ process resource.
Preferably, the eNB is in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block
Sending ePDCCH includes:
The channel status information reports (CSI report) for the Downlink Control Information (DCI) that the eNB is carried in ePDCCH
Domain indicates that the UE reports CSI, and the Resource block assignment and hopping in the DCI
The domain resource allocation and adjustment encoding scheme and redundancy versions (Modulation and coding scheme
And redundancy version) distribute to the PRB number of the UE and the ratio of the corresponding transport block size of MCS grade (TBS)
Special number is less than the minimum number bits that the UE reports CSI to need, and the bit in the domain NDI on the DCI that the ePDCCH is carried
Value is set to the value in the domain NDI when sending ePDCCH with the last time of overturning；
The eNB is in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block to described
UE sends the ePDCCH, indicates that eNB described in the UE is properly received the PUSCH data block and discharges the UE and currently occupies
HARQ process resource.
The present invention also provides a kind of uplink hybrid automatic repeat request feedback methods, comprising:
UE sends PUSCH transmission data block to eNB；
The UE receives the eNB in the correspondence downlink for retransmitting subframe next time for dispatching the PUSCH transmission data block
The ePDCCH that subframe is sent, indicating the UE no longer is that HARQ process distributes new PUSCH resource.
Preferably, the UE receives the eNB in pair for retransmitting subframe next time for dispatching the PUSCH transmission data block
After the step of ePDCCH for answering downlink subframe to send, further includes:
In the Resource block assignment and hopping resource of the ePDCCH
The particular bit string of position range of the domain the allocation field existence value beyond normal resource distribution, and special string bit
Digit is the bit of the domain Resource block assignment and hopping resource allocation field
When number, the UE determines that the eNB is properly received the PUSCH data block, and discharges the HARQ process that the UE is currently occupied
Resource.
Preferably, the UE receives the eNB in pair for retransmitting subframe next time for dispatching the PUSCH transmission data block
After the step of ePDCCH for answering downlink subframe to send, further includes:
In the Resource block assignment and hopping resource of the ePDCCH
The domain allocation field is filled with invalid Bit String, and the bit value in the domain NDI on the DCI of ePDCCH carrying is set to
When the value in the domain NDI when sending ePDCCH with overturning last, the UE determines that the eNB is properly received the PUSCH number
According to block, and discharge the HARQ process resource that the UE is currently occupied.
Preferably, the UE receives the eNB in pair for retransmitting subframe next time for dispatching the PUSCH transmission data block
After the step of ePDCCH for answering downlink subframe to send, further includes:
Indicate that the UE reports CSI in the domain CSI report of the DCI of ePDCCH carrying, and in the DCI
The domain resource allocation and hopping block assignment Resource and adjustment encoding scheme and superfluous
Remaining version (Modulation and coding scheme and redundancy version) distributes to the PRB of the UE
The bit number of number transport block size (TBS) corresponding with MCS grade is less than the minimum number bits that the UE reports CSI to need, and
The bit value in the domain NDI on DCI that the ePDCCH is carried is set to the domain NDI when sending ePDCCH with overturning last
When value, the UE determines that the eNB is properly received the PUSCH data block, and discharges the HARQ process that the UE is currently occupied
Resource.
The present invention also provides a kind of uplink hybrid automatic repeat request feedback devices, comprising:
Data reception module for receiving the PUSCH transmission data block of UE transmission, and carries out CRC check；
The filling of DCI information and ePDCCH sending module, for dispatching the PUSCH transmission number after completing CRC check
EPDCCH is sent according to the correspondence downlink subframe for retransmitting subframe next time of block, indicating the UE no longer is that the distribution of HARQ process is new
PUSCH resource.
Preferably, the DCI information filling and ePDCCH sending module include:
First configuration unit, for the Resource block assignment and hopping in the ePDCCH
Resource allocation domain field fills particular bit string, and the value of the particular bit string is beyond normal resource distribution
Position range, and the special string number of bits is the Resource block assignment and hopping
The number of bits of the domain resource allocation field；
First transmission unit, in the correspondence downlink for retransmitting subframe next time for dispatching the PUSCH transmission data block
Subframe sends the ePDCCH to the UE, indicates that the UE is properly received the PUSCH data block and to discharge the UE current
The HARQ process resource of occupancy.
Preferably, the DCI information filling and ePDCCH sending module further include:
Second configuration unit, for the Resource block assignment and hopping in ePDCCH
The domain resource allocation field fills invalid Bit String, and the domain NDI on the DCI that the ePDCCH is carried
Bit value is set to the value in the domain NDI when sending ePDCCH with the last time of overturning；
Second transmission unit, in the correspondence downlink for retransmitting subframe next time for dispatching the PUSCH transmission data block
Subframe sends the ePDCCH to the UE, indicates that the UE is properly received the PUSCH data block and to discharge the UE current
The HARQ process resource of occupancy.
Preferably, the DCI information filling and ePDCCH sending module further include:
Third configuration unit, the domain CSI report of the DCI for carrying in ePDCCH indicate that the UE reports CSI, and
The domain resource allocation and hopping block assignment Resource in the DCI and
Modulation and coding scheme and redundancy version distributes to PRB number and MCS of the UE etc.
The bit number of the corresponding TBS of grade is less than the minimum number bits that the UE reports CSI to need, and the DCI that the ePDCCH is carried
On the bit value in the domain NDI be set to the value in the domain NDI when sending ePDCCH with overturning last；
Third transmission unit, in the correspondence downlink for retransmitting subframe next time for dispatching the PUSCH transmission data block
Subframe sends the ePDCCH to the UE, indicates that the UE is properly received the PUSCH data block and to discharge the UE current
The HARQ process resource of occupancy.
The present invention also provides a kind of uplink hybrid automatic repeat request feedback devices, comprising:
Data transmission blocks, for sending PUSCH transmission data block to eNB；
EPDCCH receiving module, for receiving the eNB in of re-transmission next time for dispatching the PUSCH transmission data block
The ePDCCH that the correspondence downlink subframe of frame is sent, indicating the UE no longer is that HARQ process distributes new PUSCH resource.
Preferably, the device further include:
DCI solves read through model, for the Resource block assignment and hopping in the ePDCCH
The particular bit string of position range of the domain the resource allocation field existence value beyond normal resource distribution, and it is special
Character string number of bits is the domain Resource block assignment and hopping resource allocation word
When the number of bits of section, determine that the eNB is properly received the PUSCH data block, and discharge the HARQ that the UE is currently occupied
Process resource.
Preferably, the DCI solves read through model, is also used to the Resource block assignment in the ePDCCH
And hopping resource allocation domain field is filled with invalid Bit String, and the DCI of ePDCCH carrying
On the bit value in the domain NDI when being set to the value in the domain NDI when sending ePDCCH with overturning last, determine that the eNB is correct
The PUSCH data block is received, and discharges the HARQ process resource that the UE is currently occupied.
Preferably, the DCI solves read through model, is also used to indicate in the domain CSI report of the ePDCCH DCI carried
The UE reports CSI, and the Resource block assignment and hopping resource in the DCI
The domain allocation and Modulation and coding scheme and redundancy version distribute to the UE
PRB number and the bit number of the corresponding TBS of MCS grade be less than the minimum number bits that the UE reports CSI to need, and will be described
When the bit value in the domain NDI on the DCI of ePDCCH carrying is set to the value in the domain NDI when sending ePDCCH with the last time of overturning,
The UE determines that the eNB is properly received the PUSCH data block, and discharges the HARQ process resource that the UE is currently occupied.
The present invention also provides a kind of uplink hybrid automatic repeat request feedback systems, including eNB and UE；
The eNB, the PUSCH transmission data block sent for receiving the UE, and CRC check is carried out, complete the school CRC
After testing, ePDCCH is sent in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block, indicates institute
Stating UE no longer is that HARQ process distributes new PUSCH resource；
The UE for sending PUSCH transmission data block to the eNB, and receives the eNB and is dispatching the PUSCH
The ePDCCH that the correspondence downlink subframe for retransmitting subframe next time of transmission data block is sent, indicating the UE no longer is HARQ process
Distribute new PUSCH resource.
The present invention provides a kind of method of uplink hybrid automatic repeat request feedback, eNB receives the PUSCH that UE is sent and passes
Transmission of data block, and CRC check is carried out, after completing CRC check, the eNB is dispatching the next of the PUSCH transmission data block
The secondary correspondence downlink subframe for retransmitting subframe sends ePDCCH, and it is new to notify that UE is not that HARQ process is redistributed again by ePDCCH
PUSCH resource realizes the HARQ mechanism based on ePDCCH, and solving eNB and can not indicating UE not is that HARQ process is divided again again
The problem of with new PUSCH resource.
Detailed description of the invention
Fig. 1 is the HARQ sequential relationship of uplink scheduling；
Fig. 2 is the structural schematic diagram of HetNet；
Fig. 3 is a kind of flow chart for uplink hybrid automatic repeat request feedback method that the embodiment of the present invention one provides；
The side eNB tune in a kind of uplink hybrid automatic repeat request feedback method that Fig. 4 provides for the embodiment of the present invention two
The flow chart of degree and HARQ feedback process；
The side UE is adjusted in a kind of uplink hybrid automatic repeat request feedback method that Fig. 5 provides for the embodiment of the present invention two
Degree and the flow chart for receiving HARQ feedback process；
The side eNB tune in a kind of uplink hybrid automatic repeat request feedback method that Fig. 6 provides for the embodiment of the present invention three
The flow chart of degree and HARQ feedback process；
The side UE is adjusted in a kind of uplink hybrid automatic repeat request feedback method that Fig. 7 provides for the embodiment of the present invention three
Degree and the flow chart for receiving HARQ feedback process；
Fig. 8 is a kind of structural representation for uplink hybrid automatic repeat request feedback device that the embodiment of the present invention four provides
Figure；
Fig. 9 is the structural schematic diagram of DCI information filling and ePDCCH sending module 802 in Fig. 8；
Figure 10 is the structure for another uplink hybrid automatic repeat request feedback device that the embodiment of the present invention four provides
Schematic diagram.
Specific embodiment
PHICH can not be sent or can not send in time in eNB, if eNB is properly received the PUSCH transmission block and eNB of UE
The new biography data block of the HARQ process is no longer dispatched, eNB is not that the HARQ process redistributes new PUSCH money again in other words
Source, eNB this how to pass through ePDCCH and reach this purpose.In current R10/11 standard, do not support ePDCCH channel individually to
The scheme of UE feeding back ACK information.
To solve the above-mentioned problems, individually feed back to UE using ePDCCH the embodiment provides a kind of
The uplink hybrid automatic repeat request feedback method of ACK, device and system pass through the special mark of certain fields in ePDCCH channel
Know to indicate that PUSCH transmission block is correctly received and discharges the HARQ process resource, solving eNB can not indicate that UE is no longer
HARQ process redistributes the problem of new PUSCH resource again.
The embodiment of the present invention is described in detail below in conjunction with attached drawing.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can mutual any combination.
First in conjunction with attached drawing, the embodiment of the present invention one is illustrated.
The embodiment of the invention provides a kind of uplink hybrid automatic repeat request feedback methods, and solving eNB can not indicate
UE is no longer the problem of HARQ process redistributes new PUSCH resource again, and specific embodiment is as shown in Figure 3, comprising:
Step 301:UE sends PUSCH transmission data block in subframe n；
Step 302:eNB receives PUSCH transmission data block in subframe n, and carries out Cyclic Redundancy Check；
Step 303:eNB is sent in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block
ePDCCH；
In this step, after completing CRC check, eNB is in the re-transmission subframe next time for dispatching the PUSCH transmission data block
Correspondence downlink subframe send ePDCCH, indicating the UE no longer is that HARQ process distributes new PUSCH resource.Specifically, working as
ENB is properly received a PUSCH transmission block, and determine not dispatch in the subframe of re-transmission next time of the transmission block the HARQ into
When the new biography PUSCH transmission block of journey, which fills special identifier in the DCI of ePDCCH, to indicate that eNB described in UE is correct
It receives the PUSCH data block and discharges the HARQ process resource that the UE is currently occupied.In this step, the ePDCCH's
The special identifier implementation of certain fields includes but is not limited to following methods in DCI:
Method one:
In resource block distribution and frequency-hopping resource position instruction (Resource block assignment and hopping
Resource allocation) domain field filling particular bit string, the value of the particular bit string is beyond the position of normal resource distribution
Range (i.e. the special string can not indicate PUSCH channel resource location) is set, which is
The number of bits of the domain Resource block assignment and hopping resource allocation field.And
Define the mark of the special string are as follows: eNB is properly received PUSCH data block and discharges the HARQ process resource.
Method two:
It fills invalid nonuniformity and controls information, and handle in other domains on the DCI of ePDCCH carrying in addition to NDI
The bit value in the domain NDI and the value in the domain NDI of last time DCI on the DCI of ePDCCH carrying are overturn.The nonuniformity control
The specific implementation of information processed includes but is not limited to following two mode:
1) in the domain Resource block assignment and hopping resource allocation, field is filled out
Invalid Bit String is filled, i.e. the value of the Bit String cannot be interpreted according to agreement, can not indicate distribution resource location；
2) channel state information (Channel State Information, CSI) the report domain (report) instruction of DCI
UE reports CSI information, but the Resource block assignment and hopping resource in DCI
The domain allocation and adjustment encoding scheme and redundancy versions (Modulation and coding scheme and
Redundancy version) domain distributes to the PRB number and the corresponding transport block size (Transmission of MCS grade of UE
Block Size, TBS) bit number be less than UE report CSI need minimum number bits.
Preferably, eNB and UE is in advance to the Resource block assignment and hopping
The meaning of various character strings is arranged in the field of the domain resource allocation.
Step 304:UE receives the ePDCCH, and CRC result is correct, then when the certain fields of DCI contain special identifier,
The special identifier will be read as eNB and be properly received a upper PUSCH transmission block by UE, and not dispatch the new biography of the HARQ process
PUSCH data block, therefore UE informs that MAC layer transmission block is correctly received, but not on ePDCCH scheduling instruction is corresponding
PUSCH new biography data block is sent in row subframe.Certain fields is special in the DCI of ePDCCH involved in the embodiment of the present invention
The specific implementation of mark includes but is not limited to following methods:
Method one:
In resource block distribution and frequency-hopping resource position instruction (Resource block assignment and hopping
Resource allocation) domain field filling particular bit string, the value of the particular bit string is beyond the position of normal resource distribution
Range (i.e. the special string can not indicate PUSCH channel resource location) is set, which is
The number of bits of the domain Resource block assignment and hopping resource allocation field.And
Define the mark of the special string are as follows: eNB is properly received PUSCH data block and discharges the HARQ process resource.
Method two:
It fills invalid nonuniformity and controls information, and handle in other domains on the DCI of ePDCCH carrying in addition to NDI
The bit value in the domain NDI and the value in the domain NDI of last time DCI on the DCI of ePDCCH carrying are overturn.The nonuniformity control
The specific implementation of information processed includes but is not limited to following two mode:
1) in Resource block assignment and hopping resource allocation(resource block
Distribution and frequency-hopping resource position instruction) domain field fills invalid Bit String, i.e. and the value of the Bit String cannot be interpreted according to agreement,
It can not indicate distribution resource location；
2) channel state information (Channel State Information, CSI) the report domain (report) instruction of DCI
UE reports CSI information, but the Resource block assignment and hopping resource in DCI
The domain allocation and adjustment encoding scheme and redundancy versions (Modulation and coding scheme and
Redundancy version) domain distributes to the PRB number and the corresponding transport block size (Transmission of MCS grade of UE
Block Size, TBS) bit number be less than UE report CSI need minimum number bits.
With reference to the accompanying drawing, the embodiment of the present invention two is illustrated.
The embodiment of the invention provides a kind of uplink hybrid automatic repeat request feedback methods, and solving eNB can not indicate
UE is no longer the problem of HARQ process redistributes new PUSCH resource again, and specific embodiment is as follows:
One, the side eNB:
As shown in figure 4, the ACK for PUSCH transmission block is fed back, and eNB does not dispatch the new biography PUSCH number of the HARQ process
According to block.At this point, eNB passes through the Resource block assignment and hopping on the DCI that ePDCCH is carried
The domain resource allocation field fills special Bit String, and the value of the Bit String exceeds the position of normal resource distribution
Range, the i.e. special string can not indicate the resource location of PUSCH channel, which is Resource
The number of bits of the domain block assignment and hopping resource allocation field.And it is special to define this
The meaning of character string are as follows: eNB is properly received PUSCH data block and discharges the HARQ process resource.The special string meaning can
Arranged in advance by the side eNB and the side UE.
Two, the side UE:
As shown in figure 5, UE receives ePDCCH, after correctly detection ePDCCH channel, DCI is interpreted.
If in the domain Resource block assignment and hopping resource allocation field
For special Bit String, the value of the Bit String can not indicate the resource location of PUSCH channel, which is
The number of bits of the domain Resource block assignment and hopping resource allocation field.It should
The mark of special string are as follows: eNB is properly received PUSCH data block and discharges the HARQ process resource.So UE is read as eNB
It is properly received a PUSCH transmission block, and does not dispatch the re-transmission PUSCH transmission block or new biography PUSCH data of the HARQ process
Block, therefore UE informs that MAC layer transmission block is correctly received, and does not need to send PUSCH on the corresponding sub-frame of uplink of DCI0
Data block.
Technical solution provided in an embodiment of the present invention, which can solve eNB, individually to indicate PUSCH transmission using ePDCCH
The ACK of block is without distributing new PUSCH resource problem for the HARQ process of UE.
In the following, being illustrated to the embodiment of the present invention three.
The embodiment of the invention provides a kind of uplink hybrid automatic repeat request feedback methods, and solving eNB can not indicate
UE is no longer the problem of HARQ process redistributes new PUSCH resource again, and specific embodiment is as follows:
One, the side eNB:
As shown in fig. 6, the ACK for PUSCH transmission block is fed back, and eNB does not dispatch the new biography PUSCH number of the HARQ process
According to block.ENB is overturn by the value in the bit value in the domain NDI on the DCI that ePDCCH is carried and the domain NDI of last time DCI, and
Invalid nonuniformity control information is filled in other domains on the DCI of ePDCCH carrying in addition to NDI, to indicate upper one
PUSCH transmission block is correctly received, and eNB does not dispatch the new biography PUSCH data block of the HARQ process.Nonuniformity control letter
Breath includes, but are not limited to, the following ways:
1) in the domain Resource block assignment and hopping resource allocation, field is filled out
Invalid Bit String is filled, i.e. the value of the Bit String cannot be interpreted according to agreement, can not indicate distribution resource location；
2) domain the CSI report instruction UE of DCI reports CSI information, but the Resource block in DCI
The domain resource allocation and hopping assignment and Modulation and coding scheme
And redundancy version distributes in domain the PRB number and the corresponding TBS(Transmission Block of MCS grade of UE
Size bit number) is less than the minimum number bits that UE reports CSI to need.
ENB by send comprising above-mentioned nonuniformity control information ePDCCH, to U reception and registration need not continue to for HARQ into
Journey distributes the meaning of resource, this meaning can be arranged in advance by the side eNB and the side UE.
Two, the side UE:
As shown in fig. 7, UE receives ePDCCH, after correctly detection ePDCCH channel, DCI is interpreted.
If the bit value of NDI and the value in the domain NDI of last time DCI are flipped, and other on ePDCCH in addition to NDI
There are invalid nonuniformities to control information in domain, then UE, which is read as eNB, is properly received a PUSCH transmission block, and uncomfortable
The new biography PUSCH data block of the HARQ process is spent, therefore UE informs that MAC layer transmission block is correctly received, and does not need at this
PUSCH, which is sent, on the sub-frame of uplink of the corresponding scheduling of ePDCCH passes data block.
Nonuniformity control information includes, but are not limited to, the following ways:
1) in Resource block assignment and hopping resource allocation(resource block
Distribution and frequency-hopping resource position instruction) domain field is invalid Bit String, i.e. the value of the Bit String cannot interpret according to agreement, nothing
Method instruction distribution resource location；
2) domain the CSI report instruction UE of DCI reports CSI information, but the Resource block in DCI
Assignment and hopping resource allocation(resource block distribution and frequency-hopping resource position instruction) domain and
Modulation and coding scheme and redundancy version(adjusts encoding scheme and redundancy versions) domain
Distribute to the PRB number and the corresponding TBS(Transmission Block Size of MCS grade of UE) bit number reported less than UE
The minimum number bits that CSI needs.
Technical solution provided in an embodiment of the present invention, which can solve eNB, individually to indicate PUSCH transmission using ePDCCH
The ACK of block is without distributing new PUSCH resource problem for the HARQ process of UE.
With reference to the accompanying drawing, the embodiment of the present invention four is illustrated.
The embodiment of the invention provides a kind of uplink hybrid automatic repeat request feedback device, structure is as shown in figure 8, packet
It includes:
Data reception module 801 for receiving the PUSCH transmission data block of UE transmission, and carries out CRC check；
The filling of DCI information and ePDCCH sending module 802, for being passed dispatching the PUSCH after completing CRC check
The correspondence downlink subframe for retransmitting subframe next time of transmission of data block sends ePDCCH, and indicating the UE no longer is the distribution of HARQ process
New PUSCH resource.
Preferably, the structure of the DCI information filling and ePDCCH sending module 802 is as shown in Figure 9, comprising:
First configuration unit 8021, for the Resource block assignment and in the ePDCCH
Hopping resource allocation domain field fills particular bit string, and the value of the particular bit string is beyond normal money
The position range of source distribution, and the special string number of bits is the Resource block assignment and
The number of bits of the domain hopping resource allocation field；
First transmission unit 8022, in the correspondence for retransmitting subframe next time for dispatching the PUSCH transmission data block
Downlink subframe sends the ePDCCH to the UE, indicates that the UE is properly received the PUSCH data block and discharges the UE
The HARQ process resource currently occupied.
Preferably, the DCI information filling and ePDCCH sending module 802 further include:
Second configuration unit 8023, for the Resource block assignment and hopping in ePDCCH
The domain resource allocation field fills invalid Bit String, and the domain NDI on the DCI that the ePDCCH is carried
Bit value is set to the value in the domain NDI when sending ePDCCH with the last time of overturning；
Second transmission unit 8024, in the correspondence for retransmitting subframe next time for dispatching the PUSCH transmission data block
Downlink subframe sends the ePDCCH to the UE, indicates that the UE is properly received the PUSCH data block and discharges the UE
The HARQ process resource currently occupied.
Preferably, the DCI information filling and ePDCCH sending module 802 further include:
Third configuration unit 8025, the domain CSI report of the DCI for carrying in ePDCCH indicate that the UE is reported
CSI, and the domain Resource block assignment and hopping resource allocation in the DCI
With Modulation and coding scheme and redundancy version distribute to the UE PRB number and
The bit number of the corresponding TBS of MCS grade is less than the minimum number bits that the UE reports CSI to need, and the ePDCCH is carried
DCI on the bit value in the domain NDI be set to the value in the domain NDI when sending ePDCCH with overturning last；
Third transmission unit 8026, in the correspondence for retransmitting subframe next time for dispatching the PUSCH transmission data block
Downlink subframe sends the ePDCCH to the UE, indicates that the UE is properly received the PUSCH data block and discharges the UE
The HARQ process resource currently occupied.
Fig. 8 and uplink hybrid automatic repeat request feedback device shown in Fig. 9 can be integrated in eNB, be completed by eNB corresponding
Function.
The embodiment of the invention also provides a kind of uplink hybrid automatic repeat request feedback device, structure such as Figure 10 institutes
Show, comprising:
Data transmission blocks 1001, for sending PUSCH transmission data block to eNB；
EPDCCH receiving module 1002 is dispatching weighing next time for the PUSCH transmission data block for receiving the eNB
The ePDCCH that the correspondence downlink subframe of subframe is sent is passed, indicating the UE no longer is that HARQ process distributes new PUSCH resource.
Preferably, the device further include:
DCI solves read through model 1003, for the Resource block assignment and in the ePDCCH
The particular bit of position range of the hopping resource allocation domain field existence value beyond normal resource distribution
String, and special string number of bits is Resource block assignment and hopping resource
When the number of bits of the domain allocation field, determine that the eNB is properly received the PUSCH data block, and discharge the UE
The HARQ process resource currently occupied.
Preferably, the DCI solves read through model, is also used to the Resource block assignment in the ePDCCH
And hopping resource allocation domain field is filled with invalid Bit String, and the DCI of ePDCCH carrying
On the bit value in the domain NDI when being set to the value in the domain NDI when sending ePDCCH with overturning last, determine that the eNB is correct
The PUSCH data block is received, and discharges the HARQ process resource that the UE is currently occupied.
Preferably, the DCI solves read through model, is also used to indicate in the domain CSI report of the ePDCCH DCI carried
The UE reports CSI, and the Resource block assignment and hopping resource in the DCI
The domain allocation and Modulation and coding scheme and redundancy version distribute to the UE
PRB number and the bit number of the corresponding TBS of MCS grade be less than the minimum number bits that the UE reports CSI to need, and will be described
When the bit value in the domain NDI on the DCI of ePDCCH carrying is set to the value in the domain NDI when sending ePDCCH with the last time of overturning,
The UE determines that the eNB is properly received the PUSCH data block, and discharges the HARQ process resource that the UE is currently occupied.
Uplink hybrid automatic repeat request feedback device shown in Fig. 10 can be integrated in UE, complete corresponding function by UE.
The embodiment of the invention also provides a kind of uplink hybrid automatic repeat request feedback systems, including with Fig. 8 and Fig. 9
Uplink hybrid automatic repeat request feedback device shown in the eNB and Figure 10 of shown uplink hybrid automatic repeat request feedback device
UE；
The eNB, the PUSCH transmission data block sent for receiving the UE, and CRC check is carried out, complete the school CRC
After testing, ePDCCH is sent in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block, indicates institute
Stating UE no longer is that HARQ process distributes new PUSCH resource；
The UE for sending PUSCH transmission data block to the eNB, and receives the eNB and is dispatching the PUSCH
The ePDCCH that the correspondence downlink subframe for retransmitting subframe next time of transmission data block is sent, indicating the UE no longer is HARQ process
Distribute new PUSCH resource.
Above-mentioned uplink hybrid automatic repeat request feedback device and system, the one kind that can be provided with the embodiment of the present invention
Uplink hybrid automatic repeat request feedback method combines, and eNB receives the PUSCH transmission data block that UE is sent, and carries out the school CRC
It tests, after completing CRC check, the eNB is in the correspondence downlink for retransmitting subframe next time for dispatching the PUSCH transmission data block
Subframe sends ePDCCH, notifies that UE is not that HARQ process redistributes new PUSCH resource again by ePDCCH, realizes and be based on
The HARQ mechanism of ePDCCH, solving eNB and can not indicating UE not is that HARQ process redistributes asking for new PUSCH resource again
Topic.
Those of ordinary skill in the art will appreciate that computer journey can be used in all or part of the steps of above-described embodiment
Sequence process realizes that the computer program can be stored in a computer readable storage medium, the computer program exists
(such as system, unit, device) executes on corresponding hardware platform, when being executed, include the steps that embodiment of the method it
One or combinations thereof.
Optionally, integrated circuit can be used also to realize in all or part of the steps of above-described embodiment, these steps can
To be fabricated to integrated circuit modules one by one respectively, or make multiple modules or steps in them to single integrated electricity
Road module is realized.In this way, the present invention is not limited to any specific hardware and softwares to combine.
Each device/functional module/functional unit in above-described embodiment, which can be adopted, is realized with general computing device realization, it
Can be concentrated on a single computing device, can also be distributed over a network of multiple computing devices.
Each device/functional module/functional unit in above-described embodiment realized in the form of software function module and as
Independent product when selling or using, can store in a computer readable storage medium.Computer mentioned above
Read/write memory medium can be read-only memory, disk or CD etc..
Anyone skilled in the art in the technical scope disclosed by the present invention, can readily occur in variation or
Replacement, should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the guarantor described in claim
It protects subject to range.
Claims (17)
1. a kind of uplink hybrid automatic repeat request feedback method characterized by comprising
Base station eNB receives the PUSCH transmission data block that user terminal UE is sent, and carries out cyclic redundancy check (CRC) verification；
After completing CRC check, when the eNB no longer dispatch hybrid automatic repeat-request HARQ process new biography data block or
When eNB is not that the HARQ process redistributes new Physical Uplink Shared Channel PUSCH resource again, then the eNB is being dispatched
The correspondence downlink subframe for retransmitting subframe next time of the Physical Uplink Shared Channel PUSCH transmission data block sends the object of enhancing
Down control channel ePDCCH is managed, the hybrid automatic repeat-request HARQ that indicate eNB described in the UE no longer be the UE
Process distributes new PUSCH resource；And indicate that the UE discharges the HARQ process resource currently occupied；
Wherein, the mode of the instruction is arranged in advance by the eNB and the UE.
2. uplink hybrid automatic repeat request feedback method according to claim 1, which is characterized in that the eNB is being adjusted
The correspondence downlink subframe for retransmitting subframe next time for spending the PUSCH transmission data block sends ePDCCH and includes:
The eNB is in the resource block distribution of the ePDCCH and frequency-hopping resource position instruction Resource block
Assignment and hopping resource allocation domain field fills particular bit string, the particular bit string
Value exceed normal resource distribution position range, and the number of bits of the particular bit string be the Resource block
The number of bits of the domain assignment and hopping resource allocation field；
The eNB is sent out in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block to the UE
The ePDCCH is sent, indicates that eNB described in the UE is properly received the PUSCH data block and discharges what the UE was currently occupied
HARQ process resource.
3. uplink hybrid automatic repeat request feedback method according to claim 1, which is characterized in that the eNB is being adjusted
The correspondence downlink subframe for retransmitting subframe next time for spending the PUSCH transmission data block sends ePDCCH and includes:
Resource block assignment and hopping resource of the eNB in ePDCCH
The domain allocation field fills invalid Bit String, and the bit value in the domain NDI on DCI that the ePDCCH is carried is set to
The value in the domain NDI when the last transmission ePDCCH of overturning；
The eNB is sent out in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block to the UE
The ePDCCH is sent, indicates that eNB described in the UE is properly received the PUSCH data block and discharges what the UE was currently occupied
HARQ process resource.
4. uplink hybrid automatic repeat request feedback method according to claim 1, which is characterized in that the eNB is being adjusted
The correspondence downlink subframe for retransmitting subframe next time for spending the PUSCH transmission data block sends ePDCCH and includes:
The eNB indicates institute in the channel status information reports domain CSI report of the ePDCCH Downlink Control Information DCI carried
It states UE and reports CSI, and the Resource block assignment and hopping resource in the DCI
The domain allocation and adjustment encoding scheme and redundancy versions Modulation and coding scheme and
The bit number of PRB number and the corresponding transport block size TBS of MCS grade that redundancy version distributes to the UE is less than
The minimum number bits that the UE reports CSI to need, and the bit value in the domain NDI on DCI that the ePDCCH is carried is set to and is turned over
The value in the domain NDI when the last transmission ePDCCH turned；
The eNB is sent out in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block to the UE
The ePDCCH is sent, indicates that eNB described in the UE is properly received the PUSCH data block and discharges what the UE was currently occupied
HARQ process resource.
5. a kind of uplink hybrid automatic repeat request feedback method characterized by comprising
UE sends PUSCH transmission data block to eNB；
The UE receives the eNB in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block
The ePDCCH of transmission, indicating eNB described in the UE no longer is that HARQ process distributes the new current occupancy of PUSCH resource and release
HARQ process resource；
Wherein, the mode of the instruction is arranged in advance by the eNB and the UE.
6. uplink hybrid automatic repeat request feedback method according to claim 5, which is characterized in that the UE receives institute
State the step for the ePDCCH that eNB is sent in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block
After rapid, further includes:
In the domain Resource block assignment and hopping resource allocation of the ePDCCH
The particular bit string of position range of the field existence value beyond normal resource distribution, and the number of bits of particular bit string is
When the number of bits of the domain Resource block assignment and hopping resource allocation field,
The UE determines that the eNB is properly received the PUSCH data block, and discharges the HARQ process resource that the UE is currently occupied.
7. uplink hybrid automatic repeat request feedback method according to claim 5, which is characterized in that the UE receives institute
State the step for the ePDCCH that eNB is sent in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block
After rapid, further includes:
In the domain Resource block assignment and hopping resource allocation of the ePDCCH
Field is filled with invalid Bit String, and the bit value in the domain NDI on the DCI of ePDCCH carrying is set to the last time of overturning
When the value in the domain NDI when transmission ePDCCH, the UE determines that the eNB is properly received the PUSCH data block, and described in release
The HARQ process resource that UE is currently occupied.
8. uplink hybrid automatic repeat request feedback method according to claim 5, which is characterized in that the UE receives institute
State the step for the ePDCCH that eNB is sent in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block
After rapid, further includes:
Indicate that the UE reports CSI in the domain CSI report of the DCI of ePDCCH carrying, and in the DCI
The domain resource allocation and hopping block assignment Resource and adjustment encoding scheme and superfluous
Remaining version Modulation and coding scheme and redundancy version distributes to the PRB number of the UE
The bit number of transport block size TBS corresponding with MCS grade is less than the minimum number bits that the UE reports CSI to need, and by institute
When stating the bit value in the domain NDI on the DCI of ePDCCH carrying and being set to the value in the domain NDI when overturning last sends ePDCCH,
The UE determines that the eNB is properly received the PUSCH data block, and discharges the HARQ process resource that the UE is currently occupied.
9. a kind of uplink hybrid automatic repeat request feedback device characterized by comprising
Data reception module for receiving the PUSCH transmission data block of UE transmission, and carries out cyclic redundancy check (CRC) verification；
The filling of DCI information and ePDCCH sending module, are used for after completing CRC check, when eNB no longer dispatches mixed automatic retransfer
The new biography data block or eNB for requesting HARQ process are not that the HARQ process redistributes new Physical Uplink Shared Channel again
When PUSCH resource, then sent in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block
EPDCCH, indicating eNB described in the UE no longer is that HARQ process distributes new PUSCH resource；And indicate that the UE release is current
The HARQ process resource of occupancy；
Wherein, the mode of the instruction is arranged in advance by the eNB and the UE.
10. hybrid automatic repeat-request feedback device according to claim 9, which is characterized in that the DCI information filling
Include: with ePDCCH sending module
First configuration unit, for the Resource block assignment and hopping in the ePDCCH
Resource allocation domain field fills particular bit string, and the value of the particular bit string is beyond normal resource distribution
Position range, and the number of bits of the particular bit string is the Resource block assignment and
The number of bits of the domain hopping resource allocation field；
First transmission unit, in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block
The ePDCCH is sent to the UE, the correctly received PUSCH data block in the base station UE is indicated and discharges the UE
The HARQ process resource currently occupied.
11. uplink hybrid automatic repeat request feedback device according to claim 10, which is characterized in that the DCI letter
Breath filling and ePDCCH sending module further include:
Second configuration unit, for the Resource block assignment and hopping resource in ePDCCH
The domain allocation field fills invalid Bit String, and the bit value in the domain NDI on DCI that the ePDCCH is carried is set to
The value in the domain NDI when the last transmission ePDCCH of overturning；
Second transmission unit, in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block
The ePDCCH is sent to the UE, the correctly received PUSCH data block in the base station UE is indicated and discharges the UE
The HARQ process resource currently occupied.
12. uplink hybrid automatic repeat request feedback device described in 0 or 11 according to claim 1, which is characterized in that described
The filling of DCI information and ePDCCH sending module further include:
Third configuration unit, the domain CSI report of the DCI for carrying in ePDCCH indicate that the UE reports CSI, and described
The domain resource allocation and hopping block assignment Resource in DCI and
Modulation and coding scheme and redundancy version distributes to PRB number and MCS of the UE etc.
The bit number of the corresponding TBS of grade is less than the minimum number bits that the UE reports CSI to need, and the DCI that the ePDCCH is carried
On the bit value in the domain NDI be set to the value in the domain NDI when overturning last sends ePDCCH；
Third transmission unit, in the correspondence downlink subframe for retransmitting subframe next time for dispatching the PUSCH transmission data block
The ePDCCH is sent to the UE, the correctly received PUSCH data block in the base station UE is indicated and discharges the UE
The HARQ process resource currently occupied.
13. a kind of uplink hybrid automatic repeat request feedback device characterized by comprising
Data transmission blocks, for sending PUSCH transmission data block to eNB；
EPDCCH receiving module, for receiving the eNB in the subframe of re-transmission next time for dispatching the PUSCH transmission data block
The ePDCCH that corresponding downlink subframe is sent, instruction base station is no longer that HARQ process distributes new PUSCH resource；
Wherein, the mode of the instruction is arranged in advance by the eNB and UE.
14. uplink hybrid automatic repeat request feedback device according to claim 13, which is characterized in that the device also wraps
It includes:
DCI solves read through model, for the Resource block assignment and hopping in the ePDCCH
The particular bit string of position range of the domain the resource allocation field existence value beyond normal resource distribution, and it is special
The number of bits of Bit String is the domain Resource block assignment and hopping resource allocation
When the number of bits of field, determine that the eNB is properly received the PUSCH data block, and discharge what the UE was currently occupied
HARQ process resource.
15. uplink hybrid automatic repeat request feedback device according to claim 14, which is characterized in that
The DCI solves read through model, is also used to the Resource block assignment and hopping in the ePDCCH
Resource allocation domain field is filled with invalid Bit String, and the domain NDI on the DCI of ePDCCH carrying
When bit value is set to the value in the domain NDI when overturning last sends ePDCCH, determine that the eNB is properly received the PUSCH
Data block, and discharge the HARQ process resource that the UE is currently occupied.
16. uplink hybrid automatic repeat request feedback device according to claim 14, which is characterized in that
The DCI solves read through model, is also used to indicate that the UE is reported in the domain CSI report of the ePDCCH DCI carried
CSI, and the domain Resource block assignment and hopping resource allocation in the DCI
The PRB number and MCS of the UE are distributed to Modulation and coding scheme and redundancy version
The bit number of the corresponding TBS of grade is less than the minimum number bits that the UE reports CSI to need, and the ePDCCH is carried
When the bit value in the domain NDI on DCI is set to the value in the domain NDI when overturning last sends ePDCCH, described in the UE determines
ENB is properly received the PUSCH data block, and discharges the HARQ process resource that the UE is currently occupied.
17. a kind of uplink hybrid automatic repeat request feedback system, which is characterized in that including eNB and UE；
The eNB, the PUSCH transmission data block sent for receiving the UE, and CRC check is carried out, complete CRC check
Afterwards, when the eNB no longer dispatches the new biography data block of hybrid automatic repeat-request HARQ process or eNB is not the HARQ process
When redistributing new Physical Uplink Shared Channel PUSCH resource again, then the PUSCH transmission data block is being dispatched next time
The correspondence downlink subframe for retransmitting subframe sends ePDCCH, and indicating the UE no longer is that HARQ process distributes new PUSCH resource；And
Indicate that the UE discharges the HARQ process resource currently occupied；
The UE for sending PUSCH transmission data block to the eNB, and receives the eNB and is dispatching the PUSCH transmission
The ePDCCH that the correspondence downlink subframe for retransmitting subframe next time of data block is sent, indicating the UE no longer is the distribution of HARQ process
New PUSCH resource；
Wherein, the mode of the instruction is arranged in advance by the eNB and the UE.
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| EP3242434B1 (en) * | 2015-01-30 | 2021-08-25 | Huawei Technologies Co., Ltd. | Method and device for transmitting feedback information in communication system |
| CN106301703B (en) * | 2015-05-15 | 2020-04-07 | 中兴通讯股份有限公司 | HARQ (hybrid automatic repeat request) sending and receiving methods, devices and nodes |
| CN106301673A (en) * | 2015-05-21 | 2017-01-04 | 中兴通讯股份有限公司 | A kind of transmission method based on collaborative network coding scene and system |
| CN106535142A (en) * | 2015-09-10 | 2017-03-22 | 北京信威通信技术股份有限公司 | Positioning method in LTE trunking system |
| CN106535319A (en) * | 2015-09-10 | 2017-03-22 | 北京信威通信技术股份有限公司 | Positioning method in LTE trunking system |
| CN106993332B (en) * | 2016-01-20 | 2019-07-02 | 中兴通讯股份有限公司 | The method and device of uplink scheduling |
| CN105978671A (en) * | 2016-06-27 | 2016-09-28 | 深圳市金立通信设备有限公司 | Indication method for HARQ (Hybrid Automatic Repeat reQuest) retransmission and associated devices |
| CN107801243B (en) | 2016-08-29 | 2021-01-29 | 华为技术有限公司 | Downlink transmission method and device |
| CN109391371B (en) * | 2017-08-10 | 2021-06-18 | 北京紫光展锐通信技术有限公司 | Hybrid automatic repeat request feedback method, device and user equipment |
| CN110011761B (en) * | 2018-01-05 | 2021-11-19 | 中国移动通信有限公司研究院 | Hybrid retransmission feedback method, network side equipment and terminal |
| CN111684835B (en) * | 2018-02-06 | 2021-10-15 | 华为技术有限公司 | Feedback information indicating method and device |
| CN110417522B (en) * | 2018-04-28 | 2022-04-26 | 成都鼎桥通信技术有限公司 | Transmission method of feedback information of uplink data, network equipment and user equipment |
| CN110719151B (en) * | 2018-07-11 | 2021-01-22 | 电信科学技术研究院有限公司 | Method and equipment for determining demodulation reference signal parameters of uplink data channel |
| CN111585730B (en) * | 2019-02-15 | 2021-10-15 | 华为技术有限公司 | Transmission method and communication device |
| CN110535572B (en) * | 2019-05-15 | 2023-07-04 | 中兴通讯股份有限公司 | Method and device for determining uplink information feedback resources |
| CN113412595B (en) * | 2019-06-19 | 2023-04-18 | Oppo广东移动通信有限公司 | Wireless communication method, terminal equipment and network equipment |
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