CN106034015A - Method and device for achieving CC crossing HARQ retransmission - Google Patents
Method and device for achieving CC crossing HARQ retransmission Download PDFInfo
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- CN106034015A CN106034015A CN201510125886.7A CN201510125886A CN106034015A CN 106034015 A CN106034015 A CN 106034015A CN 201510125886 A CN201510125886 A CN 201510125886A CN 106034015 A CN106034015 A CN 106034015A
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- harq
- dci
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- retransmits
- transmission
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Abstract
The invention provides a method and device for achieving CC crossing HARQ retransmission. The method for achieving CC crossing HARQ retransmission in a base station comprises the steps that a specific indicator is configured in CC crossing scheduling authorization DCI of a first CC to indicate that corresponding downstream data transmission is CCHARQ crossing retransmission aiming at a second CC; the CC crossing scheduling authorization DCI is sent to UE on the first CC.
Description
Technical field
The present invention generally relates to wireless communication field, more specifically, relates to for a long time
Evolution-exempt to permit to carry out in (Long Term Evolution-Unlicensed) system carrying across component
The hybrid automatic repeat-request of ripple (CC) (Hybrid Automatic Repeat-reQuest,
HARQ) method and apparatus retransmitted.
Background technology
Currently, along with the continuous growth of business demand, studying at LTE Release-13
Middle use exempts from licensed band to increase the feasibility of network capacity.Exclusive with licensed band makes
By difference, exempt from licensed band by multiple wireless access technology (Radio Access Technology,
RAT) sharing, such as Wi-Fi, radar system etc., this utilization is exempted from licensed band and is carried out LTE
The system accessed is also referred to as LTE-U system.
For exempting from the LTE of licensed band and accessing, key point is base station and subscriber equipment
(UE) opportunistic (opportunistic) is utilized and exempts from licensed band for up (UL)
And/or the transmission of descending (DL) data.Term " opportunistic " refers in LTE-U system,
One base station and/or UE only can utilize this licensed band of exempting to enter in a time interval
The data transmission of row their own, after this time interval, this is exempted from licensed band and will be released
(offer) gives other LTE-U systems or WiFi system to ensure multiple LTE-U and WiFi
Fairness between system.According to investigation and the suggestion of many leading provider, this for
The opportunistic time interval of LTE data transmission can be several Transmission Time Intervals
(Transmission Time Interval, TTI).It is to say, a LTE operator can
Exempting from several TTI of licensed band taking this, then this is exempted from licensed band and will be released for
The data transmission of other LTE-U systems or WiFi system.In order to adapt to the machine on LTE-U
Property can transmit, advise in LTE R13, support that the HARQ across CC retransmits in RAN1,
Target is to continue on a small active area on another small active area of temporarily being discharged
The HARQ of HARQ procedure retransmits.
Although retransmitting this thought across the HARQ of CC be widely proposed and obtained many
Company supports, but how to realize this thought and be still unclear.
Summary of the invention
For problem above, present invention provide for realizing across CC in LTE-U system
HARQ retransmit concrete scheme so that shared by a small active area exempting from license
After resource is released, it is possible to continue the completeest of this small active area on another small active area
The HARQ procedure become.
According to the first aspect of the invention, it is provided that a kind of for carrying out in a base station across dividing
The hybrid automatic repeat-request of loading gage ripple (CC) (Hybrid Automatic Repeat-reQuest,
HARQ) method retransmitted, including: on a CC across the descending control of CC scheduling authorization
In information processed (Downlink Control Information, DCI), configuration certain indicators refers to
Show that corresponding downlink data transmission is retransmitting across CC HARQ for the 2nd CC；And
Send described across CC scheduling authorization DCI on oneth CC to UE.
According to the second aspect of the invention, it is provided that a kind of for carrying out across component in UE
The hybrid automatic repeat-request of carrier wave (CC) (Hybrid Automatic Repeat-reQuest,
HARQ) method retransmitted, including: on a CC, receive adjusting across CC from base station
Degree authorizes Downlink Control Information (Downlink Control Information, DCI)；According to institute
State the certain indicators in CC scheduling authorization DCI and determine on a described CC at hand
Data transmission be for the 2nd CC HARQ retransmit.
According to the third aspect of the present invention, it is provided that a kind of for carrying out in a base station across dividing
The hybrid automatic repeat-request of loading gage ripple (CC) (Hybrid Automatic Repeat-reQuest,
HARQ) method retransmitted, including: by a CC across the descending control of CC scheduling authorization
Multi-carrier indicator field in information processed (Downlink Control Information, DCI)
(Carrier Indicator Field, CIF) is configured to particular value to indicate corresponding downlink data
Transmission is that the HARQ across CC for the 2nd CC retransmits；And on a CC to
UE sends described across CC scheduling authorization DCI.
According to the fourth aspect of the present invention, it is provided that a kind of for carrying out across component in UE
The hybrid automatic repeat-request of carrier wave (CC) (Hybrid Automatic Repeat-reQuest,
HARQ) method retransmitted, including: on a CC, receive adjusting across CC from base station
Degree authorizes Downlink Control Information (Downlink Control Information, DCI)；According to institute
State multi-carrier indicator field in CC scheduling authorization DCI (Carrier Indicator Field,
CIF) particular value determines that on a described CC, data on the horizon transmission is for second
The HARQ of CC retransmits.
According to the fifth aspect of the present invention, it is provided that a kind of for carrying out across component in UE
The hybrid automatic repeat-request of carrier wave (CC) (Hybrid Automatic Repeat-reQuest,
HARQ) method retransmitted, including: on a CC, receive adjusting across CC from base station
Degree authorizes Downlink Control Information (Downlink Control Information, DCI)；To reception
To be decoded across CC scheduling authorization DCI；Described across CC scheduling authorization DCI when determining
In the 2nd CC that points to of multi-carrier indicator field (Carrier Indicator Field, CIF)
When being in halted state, determine described across CC scheduling authorization DCI for for the 2nd CC's
Retransmit across the HARQ of CC.
According to the sixth aspect of the invention, it is provided that a kind of for carrying out in a base station across dividing
The hybrid automatic repeat-request of loading gage ripple (CC) (Hybrid Automatic Repeat-reQuest,
HARQ) method retransmitted, including: when the 2nd CC stop time, by the 2nd CC not
The transmitting and scheduling completed is on a CC；A CC sends this transmission being not fully complete make
For initial transmission；When receiving, the affirmative for the transmission on a CC from UE is true
When recognizing, determine that the transmission being not fully complete described on the 2nd CC completes on a CC.
Accompanying drawing explanation
Description by the detailed description of the invention below with reference to the present invention given by drawings below
Afterwards, it is better understood with the present invention, and other objects of the present invention, details, feature
Will become apparent from advantage.In the accompanying drawings:
Fig. 1 shows the side that the HARQ across CC according to the first aspect of the invention retransmits
The flow chart of method；
Fig. 2 shows the side that the HARQ across CC according to the second aspect of the invention retransmits
The flow chart of method；
Fig. 3 shows the side that the HARQ across CC according to the third aspect of the invention we retransmits
The flow chart of method；And
Fig. 4 shows the side that the HARQ across CC according to the fourth aspect of the invention retransmits
The flow chart of method.
Detailed description of the invention
As mentioned above, it has been proposed that retransmit thought and the most many across the HARQ of CC
Company supports, but how to realize this thought gratifying scheme of still neither one.
The core concept of the present invention is by method explicitly or implicitly, UE to be known at one
It is to temporarily cease for another that the upper HARQ arrived of CC (normal small active area) retransmits
Community (such as LTE-U Scell), so that ensure can be to the two community in UE side
On the initial transmission that receives and HARQ thereof retransmit and carry out suitable union operation.
Before concrete discussion, first provide definition of abbreviations more used herein so that
Obtain discussed below more succinct:
CC1 refers to normal activity CC, and what help was associated by it is in temporarily stopped state
Exempt to permit that CC (such as CC2) performs HARQ and retransmits；
CC2 refers to that temporarily cease exempts from license CC (such as LTE-U Scell), its HARQ
Re-transmission will be carried out on CC1.
But, it will be understood by those skilled in the art that and the invention is not limited in CC1 and CC2
Above-mentioned definition, but can apply to carry out across CC between the most movable or inactive CC
HARQ retransmit scene.
It is more fully described the preferred embodiment of the present invention below with reference to accompanying drawings.Although it is attached
Figure shows the preferred embodiment of the present invention, however, it is to be appreciated that can be with various shapes
Formula realizes the present invention and should not limited by embodiments set forth herein.On the contrary, it is provided that this
A little embodiments are to make the present invention more thorough and complete, and can be by the present invention's
What scope was complete conveys to those skilled in the art.
Additionally, in this article, describe as a example by DL transmits across the HARQ of CC retransmit each
Individual scheme, it will be appreciated by those skilled in the art that scheme disclosed in this invention also may be used
With equally or be modified slightly being applied to UL transmission.
Fig. 1 shows the side that the HARQ across CC according to the first aspect of the invention retransmits
The flow chart of method 100.
Supporting in the carrier aggregation of carrier dispatching, physical downlink control channel
(Physical Downlink Control Channel, PDCCH) carries for one or many
The Downlink Control Information (Downlink Control Information, DCI) of individual UE, at DCI
Where middle use multi-carrier indicator field (Carrier Indicator Field, CIF) indicates scheduling
Individual carrier wave.Defined CIF field includes 3 bits, and it may indicate that most 8 loads
Ripple.In the downstream direction, PDCCH is with for transmitting, the physical down of downlink data is shared to be believed
Road (Physical Downlink Shared Channel, PDSCH) time division multiplex, and upper
On line direction, use Physical Uplink Control Channel (Physical Uplink Control Channel,
PUCCH) transmit in PDSCH data transmit HARQ confirm (ACK or
NACK)。
The thought of method 100 is by configuring certain indicators in the DCI in PDCCH
Explicitly indicate the HARQ across CC to retransmit to UE.
Specifically, method 100 includes:
Step 110: base station (eNodeB) on CC1 in CC scheduling authorization DCI
Configuration certain indicators indicate corresponding downlink data transmission be for CC2 across CC
HARQ retransmits.
In one implementation, certain indicators can be the one or more reserved ratio in DCI
Spy, or can be redefining of existing bit, or can increase in DCI
Bit.Such as, if certain indicators is the binary number of 1 bit, can determine in advance
Justice this certain indicators value be represent when 1 should across CC scheduling authorization DCI for indicate across
The HARQ of CC retransmits, and is otherwise normal across CC scheduling authorization DCI.
By configuring this certain indicators in CC scheduling authorization DCI, should dispatch across CC
Mandate can be diverted in and retransmit across the HARQ of CC to UE instruction.In this case,
CIF in DCI indicates CC2, corresponding on the HARQ ID instruction CC2 in DCI
HARQ procedure indexes.
It follows that in step 120, base station sends should award across CC scheduling to UE on CC1
Power DCI.
So, by be configured so that across CC scheduling authorization DCI, base station can refer to UE
Show that will transmit on CC1 is on the CC2 indicated by the CIF of this DCI
HARQ re-transmission rather than the transmission for CC1 self.
When UE receives this across CC scheduling authorization DCI on CC1, according in DCI
This certain indicators determine on CC1 that data on the horizon are transmitted for CC2
HARQ retransmits (step 130).
In one implementation, according to this certain indicators in DCI, UE determines that this is adjusted across CC
It is that the HARQ for across CC retransmits that degree authorizes, and the CIF in DCI indicates CC2, DCI
In HARQ ID instruction CC2 on corresponding HARQ procedure index.
HARQ on CC1 retransmits after terminating, UE will be cached before at CC2
On receive transmission with receive on CC1 HARQ re-transmission carry out HARQ merge or
Individually process, to obtain the complete transmission (step 140) from base station.
It follows that UE can be to the decoding data obtained and other L1 processes.If
Successfully decoded, UE to base station feedback ACK, and will empty and receive on CC2
The relevant HARQ caching that transmission is corresponding.Additionally, UE is also by the MAC PDU feedback of decoding
Give high-rise for processing further.
It is true that from the point of view of high-rise viewpoint, the MAC PDU being not relevant for receiving is at which
Receive on individual CC.If MAC PDU is correctly decoded, then high level process can continue.
In base station side, base station knows that the HARQ of the HARQ procedure being not fully complete of CC2 retransmits successfully
Complete.
Fig. 2 shows the side that the HARQ across CC according to the second aspect of the invention retransmits
The flow chart of method 200.
As it has been described above, in existing support in the carrier aggregation scheme of carrier dispatching, determined
The CIF field of justice includes 3 bits, and it may indicate that most 8 carrier waves.But,
In current carrier aggregation, the most only need to support the polymerization of 5 carrier waves.Therefore, CIF
There is redundancy in ability, at least there is also 3 untapped CIF-value and be available for redefining.Mirror
In this, the thought of method 200 is by using not currently used CIF-value to come to UE aobvious
What formula notice received retransmits across the HARQ of CC across the instruction of CC scheduling authorization.
Specifically, method 200 includes:
Step 210: base station (eNodeB) by CC1 in CC scheduling authorization DCI
CIF be configured to particular value to indicate corresponding downlink data transmission be for CC2 across CC
HARQ retransmits.
This particular value is untapped or reserved CIF-value.Such as, this particular value is 111.
Can pre-define when CIF is this particular value, should be used for referring to across CC scheduling authorization DCI
Show and retransmit across the HARQ of CC, be otherwise normal across CC scheduling authorization DCI.
By CIF being configured to this particular value, should across CC scheduling authorization can be diverted in
UE instruction retransmits across the HARQ of CC.In this case, the HARQ ID in DCI
Corresponding HARQ procedure is indicated to index.
But, such CIF configuration can only indicate this across CC scheduling authorization be used to indicate that across
The HARQ of CC retransmits, and it is pin that the HARQ that i.e. will appear from CC1 can not be indicated to retransmit
To the HARQ procedure of which CC.
When only support CC1 be a CC2 carry out retransmitting across CC HARQ time, can be CC1
Preassign this CC2 or preassign this CC1 for CC2；
And when support CC1 be multiple CC2 carry out retransmitting across CC HARQ time, method 200
Also include: before step 210, such as, when CC2 configures, high-level signaling is passed through in base station
Which CC2 (such as wireless heterogeneous networks (RRC) signaling) helps to UE notice CC1
Carry out retransmitting across CC HARQ.
It follows that in step 220, base station sends should award across CC scheduling to UE on CC1
Power DCI.
So, by be configured so that across CC scheduling authorization DCI, base station can refer to UE
Show will transmit on CC1 be across CC HARQ retransmit rather than for CC1 self
Transmission, and can by preassign or be sent high-level signaling in advance by base station
Notify which CC this retransmits for across the HARQ of CC to UE.
When UE receives this across CC scheduling authorization DCI on CC1, according to CIF's
Particular value determines that on CC1, data on the horizon transmission is that the HARQ for CC2 retransmits
(step 230).
In one implementation, according to this particular value of CIF, UE determines that this is across CC scheduling authorization
DCI is to retransmit for the HARQ across CC, and wherein the HARQ ID in DCI indicates phase
The HARQ procedure index answered.Additionally, UE is always according to predesignated or from base station height
Layer signaling determines that this HARQ retransmits targeted CC2.
HARQ on CC1 retransmits after terminating, UE will be cached before at CC2
On receive transmission with receive on CC1 HARQ re-transmission carry out HARQ merge or
Individually process, to obtain the complete transmission (step 240) from base station.
It is similar with method 100, it follows that UE can also be to the decoding data obtained
With other L1 processes.If successfully decoded, UE to base station feedback ACK, and will empty
The relevant HARQ caching corresponding to the transmission received on CC2.Additionally, UE also will
The MAC PDU of decoding feeds back to high-rise for processing further.
It can be seen that the something in common of method 200 and 100 is to be required for dispatching across CC
Authorize DCI to redefine, be therefore referred to as explicit aspect.Correspondingly, the behavior of UE
It is also required to redefine.
But, method 200 with 100 difference be, in method 200, need pre-
First specify or retransmitted by the high-level signaling HARQ across CC on UE notice CC1
For which CC2.If only supporting one LTE-U Scell of configuration in R13, then
UE knows this LTE-U Scell by default, and if supporting multiple LTE-U in R13
Scell, then for the LTE-U Scell of each configuration, it is necessary to configures a normal cell for it
Support that its HARQ retransmits, and a normal cell is only capable of and is configured to support one
The HARQ of LTE-U Scell retransmits.
Fig. 3 shows the side that the HARQ across CC according to the third aspect of the invention we retransmits
The flow chart of method 300.
For method 300, it is not necessary to redefine across CC scheduling authorization DCI,
But by prespecified in specification so that UE is able to know that and points to the LTE-U stopped
Scell across CC scheduling authorization by instruction this be one across CC HARQ retransmit, therefore
This scheme is considered implicit aspect.
Specifically, method 300 includes:
Step 310, UE receives across CC scheduling authorization DCI on the CC1 of normal activity.
Step 320, UE is decoded across CC scheduling authorization DCI, when really receive
When the CC2 that fixed CIF therein points to is currently at halted state, UE determines that this is adjusted across CC
Degree authorizes DCI to retransmit for the HARQ across CC for CC2.
In one implementation, the instruction of the CIF in DCI CC2, the HARQ ID in DCI refer to
Show the corresponding HARQ procedure index on CC2.
According to this thought, which CC is base station side should will be apparent from and be in halted state, therefore
When the CIF in the DCI that base station is sent points to the CC stopped, UE can know with implicit expression
Being currently received is a kind of special scheduling authorization across CC scheduling authorization, and this scheduling authorization is not
It is to trigger the transmission for CC1, but uses the resource indicated by this mandate enterprising at CC1
The HARQ of row CC2 retransmits, and corresponding HARQ procedure is by the HARQ in this DCI
ID is identified.
It follows that similar with method 100 and 200, the HARQ on CC1 retransmits and terminates
Afterwards, the transmission that UE receives before being cached on CC2 receives with on CC1
To HARQ retransmit carry out HARQ merging or individually process, to obtain from base station
Complete transmission (step 330).
Further, UE can be to the decoding data obtained and other L1 processes.As
Really successfully decoded, UE to base station feedback ACK, and will empty and receive with on CC2
Relevant HARQ caching corresponding to transmission.Additionally, UE is also by anti-for the MAC PDU of decoding
Feed high-rise for processing further.
For method 300, when CIF points to the CC2 being in halted state, if
If having the identical ongoing HARQ procedure of CC1, it will automatically hung up.
Fig. 4 shows the side that the HARQ across CC according to the fourth aspect of the invention retransmits
The flow chart of method 400.
Similar with method 300, method 400 is carried out also without to across CC scheduling authorization DCI
Redefining, therefore the program is also regarded as implicit aspect.
In said method 100-300, UE side be required for by receive on CC1 for
The HARQ of CC2 retransmits and carries out HARQ with the initial transmission received on CC2 cached
Merging or individually process, this represents that the HARQ caching received on the CC2 maintained will
HARQ across CC is retransmitted and contributes.Therefore, this need notify UE carrying out across
The HARQ of CC retransmits, and merges so that UE can carry out correct HARQ or individually enters
Row processes, and then empties the corresponding HARQ caching received on CC2 when decoding correct.
Different from said method 100-300, for method 400, when CC2 stops, its
The data transmitted will be considered a new transmission on CC1 according to the HARQ procedure of CC1
Re-start transmission.
Specifically, method 400 includes:
Step 410, when CC2 stops, base station is by the transmitting and scheduling being not fully complete on CC2
On CC1.
Step 420, base station resends this transmission being not fully complete on CC1 and passes as initial
Defeated.
Preferably, base station uses the idle HARQ procedure of CC1 to send for CC2's
PDU.Otherwise, if all HARQ procedure of CC1 are all being carried out, then base station must make
The MAC PDU for CC2 is sent with one of them.From the point of view of UE viewpoint, UE will
It is thought that the new transmission in the specific HARQ process of a CC1, therefore protect on CC1
The HARQ caching of this HARQ procedure deposited will be cleared.This behavior necessarily affects CC1
Performance.
So, the new biography that the transmission being not fully complete on CC2 is considered as on CC1 by base station
It is input into row process.
Step 430, UE receives the transmission on CC1 and is decoded.
Step 440, when successfully decoded, UE transmits for the transmission on this CC1 to base station
Positive acknowledgment.
Step 450, when base station receives this positive acknowledgment, determines being not fully complete on CC2
Transmission complete on CC1.
It can be seen that in method 400, it is not necessary to the behavior for UE side redefines,
UE be not relevant on CC1 transmission PDU before whether at other CC (such as CC2)
Upper transmission, thus this new transmission also will not be combined by UE with its HARQ caching,
But the transmission received on CC1 is processed as new transmission.
In this case, UE side will not actively empty the related cache for CC2.To this end,
UE can empty it when the current CC2 stopped reopens after a while and starts new transmission
In for the related cache of CC2.Before that, the relevant HARQ caching of CC2 will be tieed up
Hold, because UE does not knows that the MAC PDU of this HARQ procedure of CC2 is on CC1
Successful transmissions.
In this article, referring to the drawings method disclosed herein is described.But should
Understanding, sequence of steps shown in accompanying drawing and described in this description is only schematically
, without departing from the scope of the claims, these method steps and/or action can
It is not limited to perform in a different order in shown in accompanying drawing and description be retouched
The particular order stated.
In one or more exemplary design, can use hardware, software, firmware or they
Combination in any realize function described herein.If realized with software, the most permissible
Described function is stored on a computer-readable medium as one or more instructions or code,
Or transmit as the one or more instructions on computer-readable medium or code.Calculate
Machine computer-readable recording medium includes computer-readable storage medium and communication media, and wherein communication media includes
Help computer program and be delivered to the arbitrary medium of another place from a place.Storage is situated between
Matter can be the addressable any usable medium of universal or special computer.This computer can
Read medium and can include, for example, but not limited to, RAM, ROM, EEPROM, CD-ROM
Or other optical disc memory apparatus, disk storage equipment or other magnetic storage apparatus, or available
In with universal or special computer or the addressable instruction of universal or special processor or data
Other medium any of desired code modules is carried or stored to the form of structure.And
And, arbitrarily connect computer-readable medium of can also being known as.Such as, if software is
Use coaxial cable, optical fiber cable, twisted-pair feeder, Digital Subscriber Line (DSL) or the most infrared
The wireless technology of line, radio and microwave etc is come from website, server or other remote source
Transmission, then coaxial cable, optical fiber cable, twisted-pair feeder, DSL or such as infrared ray,
The wireless technology of radio and microwave etc is also included within the definition of medium.
General processor, digital signal processor (DSP), special IC can be used
(ASIC), field programmable gate array (FPGA) or other PLD, point
Found door or transistor logic, discrete hardware components or be used for performing function as herein described
Combination in any realize or perform combining various exemplary logical block described in the invention,
Module and circuit.General processor can be microprocessor, or, processor can also be
Any common processor, controller, microcontroller or state machine.Processor can also
It is embodied as the combination of calculating equipment, such as, DSP and the combination of microprocessor, multiple micro-place
Reason device, one or more microprocessor and the combination of DSP core, or other this kind any
Structure.
Those of ordinary skill in the art it is also understood that and combine what embodiments herein described
Various exemplary logical blocks, module, circuit and algorithm steps can be implemented as electronic hardware,
Computer software or combination.This in order to clearly show that between hardware and software
Interchangeability, all encloses various exemplary parts, block, module, circuit and step above
General description has been carried out around its function.It is implemented as hardware as this function still to realize
Become software, depend on specifically applying and apply design constraint over the whole system.
Those skilled in the art can realize described for every kind of application-specific in the way of flexible
Function, but, this realize decision-making and should not be interpreted as causing a departure from the scope of this disclosure.
The above description of the present invention is for making any those of ordinary skill of this area be capable of
Or the use present invention.To those skilled in the art, the various amendments of the present invention
Will be apparent from, and general principle defined herein can also be without departing from this
Other deformation it is applied in the case of bright spirit and scope.Therefore, the present invention is not
Be limited to example as herein described and design, but with principle disclosed herein and novel features
The widest scope consistent.
Claims (20)
1. ask for the mixed automatic retransfer carried out in a base station across component carrier (CC) for one kind
Seek the method that (Hybrid Automatic Repeat-reQuest, HARQ) retransmits, including:
On a CC across CC scheduling authorization Downlink Control Information (Downlink Control
Information, DCI) in configuration certain indicators indicate the corresponding downlink data transmission to be
Retransmitting across CC HARQ for the 2nd CC；And
A CC send described across CC scheduling authorization DCI to UE.
2. the method for claim 1, wherein said in CC scheduling authorization DCI
Multi-carrier indicator field (Carrier Indicator Field, CIF) indicate described 2nd CC,
Described HARQ ID described 2nd CC's of instruction in CC scheduling authorization DCI is corresponding
HARQ procedure indexes.
3. the method for claim 1, wherein a CC is mobile C C, the 2nd CC
For be in halted state exempt from permit CC.
4. ask for the mixed automatic retransfer carried out in UE across component carrier (CC) for one kind
Seek the method that (Hybrid Automatic Repeat-reQuest, HARQ) retransmits, including:
A CC receives from base station across CC scheduling authorization Downlink Control Information
(Downlink Control Information,DCI)；
A described CC is determined according to described certain indicators in CC scheduling authorization DCI
Upper data on the horizon transmission is that the HARQ for the 2nd CC retransmits.
5. method as claimed in claim 4, wherein said in CC scheduling authorization DCI
Multi-carrier indicator field (Carrier Indicator Field, CIF) indicate described 2nd CC,
Described HARQ ID described 2nd CC's of instruction in CC scheduling authorization DCI is corresponding
HARQ procedure indexes.
6. method as claimed in claim 4, also includes:
The transmission received on the 2nd CC before being cached receives with on a CC
To HARQ retransmit carry out HARQ merging or individually process.
7. method as claimed in claim 4, wherein a CC is mobile C C, the 2nd CC
For be in halted state exempt from permit CC.
8. ask for the mixed automatic retransfer carried out in a base station across component carrier (CC) for one kind
Seek the method that (Hybrid Automatic Repeat-reQuest, HARQ) retransmits, including:
By on a CC across CC scheduling authorization Downlink Control Information (Downlink Control
Information, DCI) in multi-carrier indicator field (Carrier Indicator Field, CIF)
Be configured to particular value to indicate corresponding downlink data transmission be for the 2nd CC across CC's
HARQ retransmits；And
A CC send described across CC scheduling authorization DCI to UE.
9. method as claimed in claim 8, wherein said in CC scheduling authorization DCI
HARQ ID indicate described 2nd CC corresponding HARQ procedure index, described second
CC is preassigned by system or is prenoticed described UE by base station by high-level signaling.
10. method as claimed in claim 8, wherein a CC is mobile C C, second
CC be in halted state exempt from permit CC.
11. 1 kinds please for the mixed automatic retransfer carried out in UE across component carrier (CC)
Seek the method that (Hybrid Automatic Repeat-reQuest, HARQ) retransmits, including:
A CC receives from base station across CC scheduling authorization Downlink Control Information
(Downlink Control Information,DCI)；
According to described multi-carrier indicator field (Carrier in CC scheduling authorization DCI
Indicator Field, CIF) particular value determine data on the horizon on a described CC
Transmission is that the HARQ for the 2nd CC retransmits.
12. methods as claimed in claim 11, wherein said across CC scheduling authorization DCI
In HARQ ID indicate the corresponding HARQ procedure index of described 2nd CC, described the
Two CC are preassigned by system or are prenoticed described UE by base station by high-level signaling.
13. methods as claimed in claim 11, also include:
The transmission received on the 2nd CC before being cached receives with on a CC
To HARQ retransmit carry out HARQ merging or individually process.
14. methods as claimed in claim 11, wherein a CC is mobile C C, second
CC be in halted state exempt from permit CC.
15. 1 kinds please for the mixed automatic retransfer carried out in UE across component carrier (CC)
Seek the method that (Hybrid Automatic Repeat-reQuest, HARQ) retransmits, including:
A CC receives from base station across CC scheduling authorization Downlink Control Information
(Downlink Control Information,DCI)；
It is decoded across CC scheduling authorization DCI receive；
When determining described multi-carrier indicator field (Carrier in CC scheduling authorization DCI
Indicator Field, CIF) the 2nd CC that points to is when being in halted state, determine described across
CC scheduling authorization DCI retransmits for the HARQ across CC for the 2nd CC.
16. methods as claimed in claim 15, wherein said across CC scheduling authorization DCI
In CIF indicate described 2nd CC, described HARQ ID in CC scheduling authorization DCI
The corresponding HARQ procedure indicating described 2nd CC indexes.
17. methods as claimed in claim 15, also include:
The transmission received on the 2nd CC before being cached receives with on a CC
To HARQ retransmit carry out HARQ merging or individually process.
18. methods as claimed in claim 15, wherein a CC is mobile C C, second
CC is for exempting to permit CC.
19. 1 kinds for carrying out the mixed automatic retransfer across component carrier (CC) in a base station
The method that request (Hybrid Automatic Repeat-reQuest, HARQ) retransmits, including:
When the 2nd CC stops, by the transmitting and scheduling being not fully complete on the 2nd CC a to CC
On；
A CC sends this transmission being not fully complete as initial transmission；
When receive from UE for the positive acknowledgment of the transmission on a CC time, really
The transmission being not fully complete described on fixed 2nd CC completes on a CC.
20. methods as claimed in claim 19, wherein a CC is mobile C C, second
CC is for exempting to permit CC.
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