CN105992378B - A kind of PDCCH method and apparatus in the carrier wave polymerization of enhancing - Google Patents
A kind of PDCCH method and apparatus in the carrier wave polymerization of enhancing Download PDFInfo
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- CN105992378B CN105992378B CN201510090269.8A CN201510090269A CN105992378B CN 105992378 B CN105992378 B CN 105992378B CN 201510090269 A CN201510090269 A CN 201510090269A CN 105992378 B CN105992378 B CN 105992378B
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Abstract
The invention discloses the PDCCH method and apparatus in a kind of polymerization of the carrier wave of enhancing.As one embodiment, UE receives the first DCI and the 2nd DCI in step 1, first DCI includes the carrier wave instruction and the first information and the second information of K1 carrier wave, receives wireless signal on the K1 carrier wave according to the scheduling information in the 2nd DCI in step 2.Wherein, the K1 is positive integer, and the first information includes position in subframe, and the second information includes the TB number being scheduled on the qualified carrier wave of each of described K1 carrier wave.The present invention reduces the maximum blind Detecting number that UE is executed, and the payload size for avoiding target DCI is excessive.
Description
Technical field
The present invention relates to the schemes of dispatch in wireless communication system, more particularly to based on long term evolution (LTE-
Long Term Evolution) be directed to PDCCH (Physical Downlink Control Channel, physical down control
Channel processed) method and apparatus.
Background technique
Traditional third generation cooperative partner program (3GPP -3rd Generation Partner Project) LTE system
In, PDCCH has a characteristic that
One DCI of-(Downl ink Control Information, Downlink Control Information) can only be dispatched one by one
The transmission or reception of wireless signal on target serving district
- supports 2 TB when the transmission mode most multipotency that base station is UE (User Equipment, user equipment) distribution
When (Transport Block, transmission block), UE passes through the DCI format (i.e. payload size) detected and determines scheduled in current DCI
TB number be 1 or 2
- needs in PDCCH each DCI payload size (Payload Size) under current transmission mode, UE
And/or blind Detecting (Bl ind Decoding) is executed in the search space EPDCCH (Enhanced PDCCH, the PDCCH of enhancing)
Finally to determine time-frequency location of the target DCI in subframe, i.e., occupied (one or more) CCE (Control
Channel Element, control channel unit) or eCCE (enhanced CCE, the CCE of enhancing).
A new research topic is introduced in 3GPP R (Release, version) 13, that is, the CA greater than 5 carrier waves enhanced
(Carrier Aggregation, carrier wave polymerization)-the above subject is referred to as eCA in the present invention.In eCA, a UE at most may be used
It can support 32 serving cells, in order to reduce the number of DCI blind detection survey and reduce DCI false-alarm or false dismissal, some companies are proposed
One DCI dispatches the scheme of multiple serving cells, i.e. includes the scheduling information for multiple serving cells in a DCI.However,
Relevant programme does not consider that the payload size for the changed scene-DCI of TB number that may be carried on a serving cell may
Corresponding change, and then blind Detecting number is caused to increase.Based on the relevant programme, an intuitive idea is a DCI scheduling
Each serving cell on the TB number that carries be fixed, and above-mentioned intuitive idea can bring biggish scheduling to limit.
Summary of the invention
Inventors discovered through research that a DCI, which dispatches multiple serving cells, may face following problem:
If there is more than one serving cell that most 2 TB can currently be supported to transmit in serving cell scheduled in-DCI
(i.e. the TB number of actual schedule may be 1 or 2), the variation range of total TB number of the DCI scheduling may be larger, according to existing
The TB number of LTE specification, the DCI scheduling is distinguished by DCI format (i.e. payload size).Excessive DCI payload size meeting
Cause excessive DCI blind detection to survey number, increases DCI false-alarm or false dismissal.
Inventor through further research, it has been found that, the above problem may for 1 DCI scene for dispatching a serving cell
If the maximum TB number that the serving cell that also will appear-be scheduled can be supported is greater than 2.And above-mentioned scene will be likely in future
Occur in Massive (large scale) MIMO (Multi Input Multi Output, multiple-input and multiple-output).If according to tradition
LTE scheme, multiple possible TB numbers correspond to multiple payload sizes, then the number of blind Detecting can greatly increase, and bring complexity
Raising.
In view of the above-mentioned problems, the present invention provides solutions.It should be noted that in the absence of conflict, this Shen
The feature in the embodiment and embodiment in UE please can be applied in base station, and vice versa.Further, do not conflicting
In the case of, the feature in embodiments herein and embodiment can be arbitrarily combined with each other.
The invention discloses a kind of methods in UE for supporting more TB processing, wherein includes the following steps:
Step A. receives the first DCI, and the first DCI includes the carrier wave instruction and at least one of of K1 carrier wave:
- the first information: the location information of the 2nd DCI, the location information include { carrier index of bearing carrier wave, transmission
The subframe index of subframe, position in subframe } in one or more
The second information of-: the TB number being scheduled on the qualified carrier wave of each of described K1 carrier wave
Step B. handles wireless signal on K2 carrier wave in the K1 carrier wave according to scheduling information.
Wherein, the K1 is positive integer, the first DCI include at least first information in { first information, the second information } and
2nd DCI includes the scheduling information or the first DCI only includes the second information and in { first information, the second information }
One DCI includes the scheduling information.It is described processing be receive and the K2 be equal to the K1 or it is described processing be send and institute
State the positive integer that K2 is less than or equal to the K1.The qualified carrier wave is the load of the TB number dynamic variation of carrying
Wave.
In traditional scheme, downlink distribution (Assignment) can only at most use a DCI, and the solution of the present invention
A kind of possibility is provided, once lower property is distributed (i.e. when the first DCI indicates at least first information) for 2 DCI scheduling, above method energy
Ensure that the payload size of the first DCI does not change with the TB number of the 2nd DCI scheduling, reduces the UE to detect the first DCI institute
The blind Detecting number of execution.In addition, the UE can determine that the position of the 2nd DCI according to the first information, the UE is reduced in order to examine
Survey blind Detecting number performed by the 2nd DCI.In addition, the present invention does not provide the side for dispatching the distribution of a downlink greater than 2 DCI
Case is because if one of DCI reception failure will lead to the downlink distribution and can not be executed by UE.2 DCI are a ratios
Preferable compromise.
As one embodiment, the subframe index of the transmission subframe indicates that the transmission subframe of the 2nd DCI compares the first DCI
Transmission subframe delay number of sub frames.As one embodiment, the location information is position in the subframe.As a reality
Example is applied, the 2nd DCI and the first DCI are transmitted on identical carrier wave (i.e. bearing carrier wave) and identical subframe.As a reality
Example is applied, the location information includes position in the carrier index and subframe of the bearing carrier wave of the 2nd DCI, the 2nd DCI and first
DCI is transmitted in identical subframe, and the carrier index is integer.As one embodiment, belong to the same serving cell
The identical carrier index of uplink and downlink carrier wave drama.As one embodiment, in all serving cells that the UE is configured
In, the carrier wave carrier index having the same in 2 different serving cells, 2 different serving cells belong to
Different serving cell groups.As one embodiment, the carrier index is the cell index of the affiliated serving cell of carrier wave.
As one embodiment, the carrier wave instruction of the K1 carrier wave is the K1 carrier index.Implement as one
The carrier wave instruction of example, the K1 carrier wave is Q bit, and wherein K1 bit is state 1 (or 0) and other bits are opposite
State, the Q is positive integer.As a sub- embodiment, it is small that the Q bit corresponds to the Q service that current UE is configured
Area.As one embodiment, the carrier wave instruction of the K1 carrier wave is the index of Q1 serving cell group, and the Q1 is less than or equal to
The K1 includes at least one serving cell in each serving cell group.The processing is reception and the K1 carrier wave
Be can be used in the Q1 serving cell group downlink transfer carrier wave or it is described processing be send and the K1 carrier wave be
The carrier wave of uplink can be used in the Q1 serving cell group.
As one embodiment, the qualified carrier wave is configured by high-level signaling.As one embodiment, institute
It states qualified carrier wave and refers to the carrier wave that the maximum TB number currently supported by the transmission mode that base station configures is greater than 1.
As one embodiment, the K2 is less than the K1, the K2 load of the UE in the K1 carrier wave
LBT (Listen Before Talk, listen to before transmission) operation is executed on K1-K2 carrier wave outside wave, is determined in the K1-K2
Zero is kept to send power on a carrier wave.
Specifically, according to an aspect of the present invention, which is characterized in that the step A further includes following steps:
Step A1. receives the 2nd DCI and determines the scheduling information.
Wherein, for { first information, the second information }, the first DCI includes at least first information therein.
As one embodiment, above-mentioned aspect it is characterized in that, the step A further includes following steps:
Step A0. determines the payload size of the 2nd DCI according to the second information.
Wherein, the first DCI further includes the second information.
The benefit of above-mentioned aspect is that the payload size of the 2nd DCI can flexibly become with TB number scheduled in the 2nd DCI
Change, while avoiding the UE (for all possible payload size) and executing a large amount of blind Detecting.
Specifically, according to an aspect of the present invention, which is characterized in that the step A further includes following steps:
For step A2. for the payload size of the first given DCI, total TB number according to indicated by the second information determines institute
State the bit number of scheduling information occupancy.
Wherein, for { first information, the second information }, the first DCI only includes the second information therein.
The advantages of above-mentioned aspect is that the payload size of the first DCI with the second information change, does not avoid the UE and (is directed to
All possible payload size) execute a large amount of blind Detecting.In addition, the payload size that above-mentioned aspect avoids the first DCI is excessive,
Save interface-free resources.
As one embodiment, the payload size and the second information of the first DCI is unrelated.As one embodiment, the tune
Degree information includes resource allocation information and the specific information of TB, and the occupied bit number of resource allocation information is with the second letter
It ceases the increase of indicated total TB number and reduces, the specific information of TB includes { MCS (Modulation and Coding
Scheme, modulation and demodulation method), RV (Redundancy Version, redundant version number), NDI (New Data
One or more of Indicator, new data instruction) }.The essence of the embodiment is: the granularity of resource allocation with
The increase of total TB number indicated by second information and become coarse.The purpose is to maintain the payload size of the first total DCI constant.
Specifically, according to an aspect of the present invention, which is characterized in that the location information includes { bearing carrier wave, transmission
Subframe, position in subframe } in one or more.As one embodiment of position in the subframe, position in the subframe
Set is following one:
The PDCCH or EPDCCH that the 2nd DCI of-is occupied are in M1 PDCCH candidate (Candidates) and M2 EPDCCH
The sum of index in the candidate collection of candidate's composition, the M1 and the M2 are M, and the M1 and the M2 are greater than 1 respectively
Positive integer.As a sub- embodiment, the M1 PDCCH candidate is located at CSS (Common Search Space, common search
Space)
Index of the PDCCH that the 2nd DCI of-is occupied in the candidate collection that M PDCCH candidate forms
Index of the EPDCCH that the 2nd DCI of-is occupied in the candidate collection that M EPDCCH candidate forms.
Wherein, the M is greater than 1 positive integer.
As one embodiment, the M PDCCH candidate is a USS (UE-specific Search Space, UE
Specific search space) in all or part of PDCCH it is candidate.
As one embodiment, the M PDCCH candidate is that all PDCCH in CSS and corresponding USS are candidate.
As one embodiment, the M EPDCCH candidate is that all or part of EPDCCH in a USS is candidate.
As one embodiment, the M1 PDCCH candidate is that all PDCCH in a CSS are candidate, the M2
EPDCCH candidate is that all EPDCCH in corresponding USS are candidate.
As one embodiment, the M is one in { 16,22,24,30,32,38,48,54 }.
Above-mentioned PDCCH candidate and EPDCCH candidate are the CCE and eCCE that the 2nd DCI may be occupied respectively, explain in detail ginseng
Examine the ePDCCH candidates of PDCCH candidates and the 9.1.4 section in the 9.1.1 section of TS36.213.
Specifically, according to an aspect of the present invention, which is characterized in that the scheduling information includes { public scheduling letter
One or more of breath, the specific scheduling information of carrier wave, the specific scheduling information composition of TB }.Wherein, the public tune
Degree information suitable for the carrier wave that all K1 carrier waves or the public scheduling information are applicable in is matched by high-level signaling
It sets.
Above-mentioned public scheduling information can effectively reduce the payload size of DCI, improve interface-free resources utilization efficiency.
As one embodiment, the scheduling information includes { the first domain, TPC (Transmitting Power
Control sends power control), HARQ (Hybrid Automatic Repeat reQuest, hybrid automatic repeat-request)
Process number, DAI (Downlink Assignment Index, downlink distribution index), DMRS (Demodulation
Reference Signal, demodulated reference signal) information, (Sounding Reference Signal is listened to reference to letter SRS
One or more of number) request.Wherein, the first domain is distributed for frequency domain resource.
As one embodiment, the processing is to send, and the DMRS information includes DMRS cyclic shift and DMRS OCC
(Orthogonal Covering Code, orthogonal covering codes).As one embodiment, the processing is to receive, the DMRS
Information includes antenna port, scrambling code identifier, the number of plies.
The invention discloses a kind of methods in base station for supporting more TB operations, wherein includes the following steps:
Step A. sends the first DCI, and the first DCI includes the carrier wave instruction and at least one of of K1 carrier wave:
- the first information: the location information of the 2nd DCI, the location information include { carrier index of bearing carrier wave, transmission
The subframe index of subframe, position in subframe } in one or more
The second information of-: the TB number being scheduled on the qualified carrier wave of each of described K1 carrier wave
Step B. operates wireless signal on K2 carrier wave in the K1 carrier wave according to scheduling information.
Wherein, the K1 is positive integer, the first DCI include at least first information in { first information, the second information } and
2nd DCI includes the scheduling information or the first DCI only includes the second information and in { first information, the second information }
One DCI includes the scheduling information.It is described operation be send and the K2 be equal to the K1 or it is described operation be receive and institute
State the positive integer that K2 is less than or equal to the K1.The qualified carrier wave is the load of the TB number dynamic variation of carrying
Wave.
As one embodiment of the step B, the K2 is less than the K1, and the base station is examined on the K1 carrier wave
The wireless signal of the schedule information schedules is surveyed, but is only detected on the K2 carrier wave and receives the scheduling information tune
The wireless signal of degree.
As one embodiment, the wireless signal is in PUSCH (Physical Uplink Shared Channel, object
Manage Uplink Shared Channel) or PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel) on
Transmission.
Specifically, according to an aspect of the present invention, which is characterized in that the step A further includes following steps:
Step A1. sends the 2nd DCI and indicates the scheduling information.
Wherein, for { first information, the second information }, the first DCI includes at least first information therein.
Specifically, according to an aspect of the present invention, which is characterized in that the step A further includes following steps:
For step A2. for the payload size of the first given DCI, total TB number according to indicated by the second information determines institute
State the bit number of scheduling information occupancy.
Wherein, for { first information, the second information }, the first DCI only includes the second information therein.
Specifically, according to an aspect of the present invention, which is characterized in that the step A further includes following steps:
Step A0. determines the payload size of the 2nd DCI according to the second information.
Wherein, the first DCI further includes the second information.
Specifically, according to an aspect of the present invention, which is characterized in that the location information includes { bearing carrier wave, transmission
Subframe, position in subframe } in one or more.As one embodiment of position in the subframe, position in the subframe
Set is following one:
The time that the PDCCH or EPDCCH that the 2nd DCI of-is occupied are formed in M1 PDCCH candidate and M2 EPDCCH candidate
Selected works close in index, the sum of the M1 and the M2 are M, and the M1 and the M2 are greater than 1 positive integer respectively.As one
A sub- embodiment, the M1 PDCCH candidate are located at CSS
Index of the PDCCH that the 2nd DCI of-is occupied in the candidate collection that M PDCCH candidate forms
Index of the EPDCCH that the 2nd DCI of-is occupied in the candidate collection that M EPDCCH candidate forms.
Wherein, the M is greater than 1 positive integer.
Specifically, according to an aspect of the present invention, which is characterized in that the scheduling information includes { public scheduling letter
One or more of breath, the specific scheduling information of carrier wave, the specific scheduling information composition of TB }.Wherein, the public tune
Degree information suitable for the carrier wave that all K1 carrier waves or the public scheduling information are applicable in is matched by high-level signaling
It sets.
The carrier wave is specific to refer to each carrier wave separate configurations relevant information, and the TB specific is that each TB independently matches
Set relevant information.
The invention discloses a kind of user equipmenies for supporting more TB processing, wherein including following module:
First module: for receive the first DCI, the first DCI include K1 carrier wave carrier wave instruction and below at least it
One:
- the first information: the location information of the 2nd DCI, the location information include { carrier index of bearing carrier wave, transmission
The subframe index of subframe, position in subframe } in one or more
The second information of-: the TB number being scheduled on the qualified carrier wave of each of described K1 carrier wave
Second module: for handling wireless signal on K2 carrier wave in the K1 carrier wave according to scheduling information.
Wherein, the K1 is positive integer, the first DCI include at least first information in { first information, the second information } and
2nd DCI includes the scheduling information or the first DCI only includes the second information and in { first information, the second information }
One DCI includes the scheduling information.It is described processing be receive and the K2 be equal to the K1 or it is described processing be send and institute
State the positive integer that K2 is less than or equal to the K1.The qualified carrier wave is the load of the TB number dynamic variation of carrying
Wave.
As one embodiment, above-mentioned user equipment is characterized in that, the first module is also used to: being determined according to the second information
The payload size of 2nd DCI receives the 2nd DCI and determines the scheduling information.Wherein, the first DCI includes the first information and second
Information.
As one embodiment, above-mentioned user equipment is characterized in that, the second module is also used to: for given first
The payload size of DCI, total TB number according to indicated by the second information determine the bit number that the scheduling information occupies.Wherein, right
In { first information, the second information }, the first DCI only includes the second information therein.
As one embodiment, above-mentioned user equipment is characterized in that, position is following one in the subframe:
The time that the PDCCH or EPDCCH that the 2nd DCI of-is occupied are formed in M1 PDCCH candidate and M2 EPDCCH candidate
Selected works close in index, the sum of the M1 and the M2 are M, and the M1 and the M2 are greater than 1 positive integer respectively.As one
A sub- embodiment, the M1 PDCCH candidate are located at CSS
Index of the PDCCH that the 2nd DCI of-is occupied in the candidate collection that M PDCCH candidate forms
Index of the EPDCCH that the 2nd DCI of-is occupied in the candidate collection that M EPDCCH candidate forms.
Wherein, the M is greater than 1 positive integer.
The invention discloses a kind of base station equipments for supporting more TB operations, wherein including following module:
First module: for send the first DCI, the first DCI include K1 carrier wave carrier wave instruction and below at least it
One:
- the first information: the location information of the 2nd DCI, the location information include { carrier index of bearing carrier wave, transmission
The subframe index of subframe, position in subframe } in one or more
The second information of-: the TB number being scheduled on the qualified carrier wave of each of described K1 carrier wave
Second module: for operating wireless signal on K2 carrier wave in the K1 carrier wave according to scheduling information.
Wherein, the K1 is positive integer, the first DCI include at least first information in { first information, the second information } and
2nd DCI includes the scheduling information or the first DCI only includes the second information and in { first information, the second information }
One DCI includes the scheduling information.It is described operation be send and the K2 be equal to the K1 or it is described operation be receive and institute
State the positive integer that K2 is less than or equal to the K1.The qualified carrier wave is the load of the TB number dynamic variation of carrying
Wave.
As one embodiment, above-mentioned base station equipment is characterized in that, the first module is also used to: being determined according to the second information
The payload size of 2nd DCI sends the 2nd DCI and indicates the scheduling information.Wherein, the first DCI includes the first information and second
Information.
As one embodiment, above-mentioned base station equipment is characterized in that, the second module is also used to: for given first
The payload size of DCI, total TB number according to indicated by the second information determine the bit number that the scheduling information occupies.Wherein, right
In { first information, the second information }, the first DCI only includes the second information therein.
As one embodiment, above-mentioned base station equipment is characterized in that, position is following one in the subframe:
The time that the PDCCH or EPDCCH that the 2nd DCI of-is occupied are formed in M1 PDCCH candidate and M2 EPDCCH candidate
Selected works close in index, the sum of the M1 and the M2 are M, and the M1 and the M2 are greater than 1 positive integer respectively.As one
A sub- embodiment, the M1 PDCCH candidate are located at CSS
Index of the PDCCH that the 2nd DCI of-is occupied in the candidate collection that M PDCCH candidate forms
Index of the EPDCCH that the 2nd DCI of-is occupied in the candidate collection that M EPDCCH candidate forms.
Wherein, the M is greater than 1 positive integer.
Compared to existing public technology, the present invention has following technical advantage:
- target DCI causes possible payload size variation range larger because the variation range of total TB number of scheduling is larger
When, reduce the maximum blind Detecting number that UE is executed
The payload size that-avoids target DCI is excessive, saves interface-free resources.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent:
Fig. 1 shows the flow chart of downstream wireless signals transmission according to an embodiment of the invention；
Fig. 2 shows PDCCH candidate according to an embodiment of the invention/EPDCCH candidate schematic diagrames；
Fig. 3 shows the schematic diagram of the first DCI according to an embodiment of the invention；
Fig. 4 shows the schematic diagram of the first DCI and the 2nd DCI according to an embodiment of the invention；
Fig. 5 shows the structural block diagram of the processing unit in UE according to an embodiment of the invention；
Fig. 6 shows the structural block diagram of the processing unit in base station according to an embodiment of the invention；
Specific embodiment
Technical solution of the present invention is described in further detail below in conjunction with attached drawing, it should be noted that do not rushing
In the case where prominent, the feature in embodiments herein and embodiment can be arbitrarily combined with each other.
Embodiment 1
Embodiment 1 illustrates the flow chart of downstream wireless signals transmission, as shown in Fig. 1.In attached drawing 1, base station N1 is UE
The maintenance base station of the serving cell of U2, wherein the step in box F1 is optional step.
ForBase station N1, the first DCI is sent in step s 11, in step s 13 according to scheduling information in K1 carrier wave
Send wireless signal.ForUE U2, the first DCI is received in the step s 21, according to the scheduling information in institute in step S23
It states and receives wireless signal on K1 carrier wave.
In embodiment 1, the first DCI includes the carrier wave instruction and at least one of of the K1 carrier wave:
- the first information: the location information of the 2nd DCI, the location information include { carrier index of bearing carrier wave, transmission
The subframe index of subframe, position in subframe } in one or more
The second information of-: the TB number being scheduled on the qualified carrier wave of each of described K1 carrier wave.
The K1 is positive integer, and the first DCI includes at least first information and second in { first information, the second information }
DCI includes the scheduling information or the first DCI only includes the second information and the first DCI in { first information, the second information }
Including the scheduling information.The qualified carrier wave is the carrier wave of the TB number dynamic variation of carrying.
As the sub- embodiment 1 of embodiment 1, base station N1 sends the 2nd DCI in step s 12 and indicates the scheduling information,
UE U2 receives the 2nd DCI in step S22 and determines the scheduling information.Wherein, the first DCI includes { first information, the second letter
Breath } in at least first information.
As the sub- embodiment 2 of embodiment 1, the K1 carrier wave is divided into two parts, the downlink transfer in first part
It is configured as TM (Transmission Mode, transmission mode) 1, the downlink transfer on second part is configured as TM9.It is described
Qualified carrier wave is second part, that is, the TB carried may be 1 or 2.
Embodiment 2
Embodiment 2 illustrates PDCCH candidate in the present invention/EPDCCH candidate schematic diagram, as shown in Fig. 2.Attached drawing 2
In, the corresponding 1 PDCCH candidate of 1 position candidate or 1 EPDCCH candidate.
In embodiment 2, a target candidate position in heretofore described subframe in position respective figure 2 is that is, described
Position is index of the target candidate position in the set that { position candidate 1-M } this M position candidate forms in subframe.
The M position candidate respectively corresponds UE needle on the bearing carrier wave of the 2nd DCI and the transmission subframe of the 2nd DCI
All M PDCCH for monitoring (Monitor) are candidate when executing blind Detecting to the 2nd DCI and/or EPDCCH is candidate.
As the sub- embodiment 1 of embodiment 2, UE on the bearing carrier wave of the 2nd DCI and the transmission subframe of the 2nd DCI not
It is configured EPDCCH.2nd DCI can be on CSS and USS (the specific search space UE-specific Search Space, UE)
Transmission, wherein 2 PDCCH in the CSS that { position candidate 1-2 } corresponding A L (Aggregation Level, the degree of polymerization) is 4 are waited
Choosing, 2 PDCCH candidates in CSS that { position candidate 3-6 } corresponding A L is 8, { position candidate 7-12 } corresponding A L is in 2 USS
6 PDCCH candidates, { position candidate 13-14 } corresponding A L be 4 USS in 2 PDCCH candidates, { position candidate 15-16 }
2 PDCCH candidates in USS that corresponding A L is 8.The M is 16.In the sub- embodiment 1 of embodiment 2, the 2nd DCI does not support AL
For 1 (in view of the payload size of the 2nd DCI is larger).
As the sub- embodiment 2 of embodiment 2, UE quilt on the bearing carrier wave of the 2nd DCI and the transmission subframe of the 2nd DCI
Configure EPDCCH.2nd DCI can be transmitted on CSS and USS, wherein { position candidate 1-2 } corresponding A L (Aggregation
Level, the degree of polymerization) for 2 PDCCH candidates in 4 CSS, 2 PDCCH in CSS that { position candidate 3-6 } corresponding A L is 8
Candidate, { position candidate 7-M } correspond to the M-6 EPDCCH candidate in USS, and the M is 38 or 54.
As the sub- embodiment 3 of embodiment 2, UE quilt on the bearing carrier wave of the 2nd DCI and the transmission subframe of the 2nd DCI
Configure EPDCCH.2nd DCI can only be transmitted on USS, wherein M EPDCCH in { position candidate 1-M } corresponding USS is candidate,
The M is 32 or 48.
As the sub- embodiment 4 of embodiment 2, UE on the bearing carrier wave of the 2nd DCI and the transmission subframe of the 2nd DCI not
It is configured EPDCCH.2nd DCI can only be transmitted on USS, wherein M PDCCH in { position candidate 1-M } corresponding USS is candidate,
The M is 16 or 24.In the sub- embodiment 4 of embodiment 2, the 2nd DCI supports that AL is 1
Embodiment 3
Embodiment 3 illustrates the schematic diagram of the first DCI in the present invention, as shown in Fig. 3.In attached drawing 3, the first DCI by
The carrier wave instruction of K1 carrier wave, the second information, public scheduling information, the specific scheduling information of carrier wave and TB specifically dispatch letter
Breath composition.Second information includes the qualified K3 carrier wave one-to-one correspondence in K3 bit and the K1 carrier wave, wherein
It is 1 or 2 that 1 bit, which is used to indicate on 1 carrier wave by the first DCI TB number dispatched, and the K3 is no more than the positive integer of K1.
In embodiment 3, the first DCI does not include the first information.(i.e. the second information is signified for total TB number scheduled in first DCI
The total TB number shown) it is L, the L is not less than K1 and is not more than K1+K3.The specific scheduling information of carrier wave includes K1 group first
Sub-information and the K1 carrier wave correspond.The specific scheduling information of TB includes the second sub-information of L group and the first DCI
L scheduled TB is corresponded.
As the sub- embodiment 1 of embodiment 3, the first sub-information include the first domain, HARQ entity (Entity) index,
At least one of HARQ process number }, the second sub-information includes at least one of { MCS, RV, NDI }.Wherein, the first domain is used
It is distributed in frequency domain resource.For the payload size of the first given DCI, the bit number in the first domain is determined according to the L.It is described
HARQ entity corresponding to the TB being scheduled in HARQ entity index instruction corresponding carriers, the first sub-information include the HARQ real
Body index enables the data for belonging to a HARQ process to be dynamically scheduled on multiple carrier waves.As the sub- embodiment
A 1 sub- embodiment, the bit number in the first domain are no more than the maximum integer of (R-r*L)/K1, and r is the ratio of the second sub-information
Special number, R are fixed integers.
As the sub- embodiment 2 of embodiment 3, the public scheduling information include DMRS cyclic shift and DMRS OCC,
At least one of second domain }, the public scheduling information is shared by the K1 carrier wave.Second domain is used to indicate for
Orthogonal sequence index in the occupied PHICH group number of HARQ_ACK or PHICH group of the TB of one DCI scheduling.The DMRS is followed
Ring displacement refers to DMRSOCC: the corresponding one group of DMRS cyclic shift of scheduled wireless signal and DMRS on the K1 carrier wave
The configuration information of OCC.
As the sub- embodiment 3 of embodiment 3, the public scheduling information include { CSI request, SRS request } in extremely
One of few, the carrier wave that the public scheduling information is applicable in is configured by high-level signaling.
As the sub- embodiment 4 of embodiment 3, the public scheduling information includes third domain.Wherein, the first DCI is used for
The transmission of dispatching downlink signal.Third domain is used at least one of:
- assists UE to determine the HARQ-ACK number of bits of feedback in the target-subframe of target carrier, the HARQ-ACK feedback
Bit is for the carrier wave in carrier set
- assists UE to determine the transmission subframe by the end of the first DCI, UE whether in carrier set missing inspection at least one
Downlink (Downlink) distributes (Assignment).
Wherein, the carrier set includes at least described K1 carrier wave, and the carrier wave that the carrier set includes is by high level
Signal deployment.
The only description information content of attached drawing 3, does not represent the tandem of bit arrangement.
Embodiment 4
Embodiment 4 illustrates the schematic diagram of the first DCI and the 2nd DCI in the present invention, as shown in Fig. 4.In attached drawing 4,
First DCI indicates that the first information, the second information forms by the carrier wave of K1 carrier wave.2nd DCI is carried by public scheduling information
The specific scheduling information of wave and the specific scheduling information composition of TB.Total TB number is (i.e. indicated by the second information scheduled in first DCI
Total TB number) be L.The specific scheduling information of carrier wave includes that the first sub-information of K1 group and the K1 carrier wave correspond.
The specific scheduling information of TB includes that L TB scheduled in the second sub-information of L group and the first DCI is corresponded.
UE determines the position of the 2nd DCI according to the first information, the payload size of the 2nd DCI is determined according to the second information, i.e.,
The information bit of 2nd DCI (removing cyclic redundancy check) are as follows: P+P1*K1+P2*L.Wherein P, P1, P2 are described respectively
Public scheduling information, the bit number of the first sub-information and the second sub-information.
As the sub- embodiment 1 of embodiment 4, the first information includes the sub- frame information of the 2nd DCI, and UE is directed to the 2nd DCI
The blind Detecting number of execution is 1 (directly receiving the 2nd DCI).
Embodiment 5
Embodiment 5 illustrates the structural block diagram of the processing unit in a UE, as shown in Fig. 5.In attached drawing 5, UE processing
Device 300 is mainly made of receiving module 201 and communication module 202.
Receiving module 201 for receive the first DCI, the first DCI include K1 carrier wave carrier wave instruction and below at least
One of:
- the first information: the location information of the 2nd DCI, the location information include { carrier index of bearing carrier wave, transmission
The subframe index of subframe, position in subframe } in one or more
The second information of-: the TB number being scheduled on the qualified carrier wave of each of described K1 carrier wave.
Communication module 202 is used to handle wireless signal on K2 carrier wave in the K1 carrier wave according to scheduling information.
In embodiment 5, the K1 is positive integer, and the first DCI includes at least first letter in { first information, the second information }
Breath and the 2nd DCI include the scheduling information or the first DCI only includes the second information in { first information, the second information }
And the first DCI include the scheduling information.The processing is that (the two-way dotted arrow of communication module 202 is corresponding from left-hand for reception
The arrow of right direction) and the K2 is equal to the K1 or the processing is transmission (the two-way dotted arrow of communication module 202
The corresponding arrow being directed toward from right to left) and the K2 be less than or equal to the positive integer of the K1.The qualified carrier wave
It is the carrier wave of the TB number dynamic variation of carrying.2nd DCI can only be transmitted in USS, and position is following one in the subframe:
Index of the PDCCH that the 2nd DCI of-is occupied in the candidate collection that M PDCCH candidate forms, the M PDCCH
Candidate is located at the same subframe of the same carrier wave
Index of the EPDCCH that the 2nd DCI of-is occupied in the candidate collection that M EPDCCH candidate forms, the M
EPDCCH candidate is located at the same subframe of the same carrier wave.
Wherein, the M is greater than 1 positive integer.
As the sub- embodiment 1 of embodiment 5, the K1 is 1, and the K2 is 1.
Embodiment 6
Embodiment 6 illustrates the structural block diagram of the processing unit in a base station, as shown in Fig. 6.In attached drawing 6, base station
Processing unit 300 is mainly made of sending module 301 and communication module 302.
Sending module 301 for send the first DCI, the first DCI include K1 carrier wave carrier wave instruction and below at least
One of:
- the first information: the location information of the 2nd DCI, the location information include position in subframe, the 2nd DCI and first
DCI is transmitted on the same carrier wave and the same subframe
The second information of-: the TB number being scheduled on the qualified carrier wave of each of described K1 carrier wave
Communication module 302 is used to operate wireless signal on K2 carrier wave in the K1 carrier wave according to scheduling information.
In embodiment 6, the K1 is greater than 1 positive integer, the first DCI include in { first information, the second information } extremely
Lack the first information and the 2nd DCI includes that the scheduling information or the first DCI are only included in { first information, the second information }
Second information and the first DCI includes the scheduling information.The operation is to send (the two-way dotted arrow pair of communication module 202
The arrow that should be directed toward from right to left) and the K2 be equal to the K1 or it is described operation be receive (communication module 202 it is two-way
The corresponding arrow being directed toward from left to right of dotted arrow) and the K2 be less than or equal to the positive integer of the K1.It is described to meet item
The carrier wave of part is the carrier wave of the TB number dynamic variation of carrying.
As the sub- embodiment 1 of embodiment 6, the scheduling information includes that { public scheduling information, carrier wave are specifically dispatched
Information, the specific scheduling information composition of TB }.Wherein, the public scheduling information is suitable for all K1 carrier waves, or
The carrier wave that the public scheduling information is applicable in is configured by high-level signaling.
As the sub- embodiment 2 of embodiment 6, at least one carrier wave is located at authorization frequency spectrum and at least in the K1 carrier wave
There is a carrier wave to be located at unlicensed spectrum.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be referred to by program
Related hardware is enabled to complete, described program can store in computer readable storage medium, such as read-only memory, hard disk or light
Disk etc..Optionally, one or more integrated circuit can be used also to realize in all or part of the steps of above-described embodiment.Phase
It answers, each modular unit in above-described embodiment, can be realized using example, in hardware, it can also be by the form of software function module
It realizes, the application is not limited to the combination of the software and hardware of any particular form.UE in the present invention includes but is not limited to mobile phone,
Tablet computer, notebook, the wireless telecom equipments such as card of surfing Internet.Base station in the present invention includes but is not limited to macrocell base stations, micro-
Cellular base station, Home eNodeB, the wireless telecom equipments such as relay base station.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification made, equivalent replacement, improve etc., it should be included in protection of the invention
Within the scope of.
Claims (11)
1. a kind of method in UE for supporting more TB processing, wherein include the following steps:
Step A. receives the first DCI, and the first DCI includes the carrier wave instruction and at least one of of K1 carrier wave:
- the first information: the location information of the 2nd DCI, the location information include that { carrier index of bearing carrier wave transmits subframe
Subframe index, position in subframe } in one or more；
The second information of-: the TB number being scheduled on the qualified carrier wave of each of described K1 carrier wave；
Step B. handles wireless signal on K2 carrier wave in the K1 carrier wave according to scheduling information；
Wherein, the K1 is positive integer, and the first DCI includes at least first information and second in { first information, the second information }
DCI includes the scheduling information or the first DCI only includes the second information and the first DCI in { first information, the second information }
Including the scheduling information；It is described processing be receive and the K2 be equal to the K1 or it is described processing be send and the K2
It is less than or equal to the positive integer of the K1；The qualified carrier wave is the carrier wave of the TB number dynamic variation of carrying；
The step A further includes following steps:
Step A1. receives the 2nd DCI and determines the scheduling information；
Wherein, for { first information, the second information }, the first DCI includes at least first information therein；
The payload size of first DCI is constant.
2. the method according to claim 1, wherein the step A further includes following steps:
For step A2. for the payload size of the first given DCI, total TB number according to indicated by the second information determines the tune
Spend the bit number that information occupies；
Wherein, for { first information, the second information }, the first DCI only includes the second information therein.
3. the method according to claim 1, wherein the step A further includes following steps:
Step A0. determines the payload size of the 2nd DCI according to the second information；
Wherein, the first DCI further includes the second information.
4. method according to claim 1 to 3, which is characterized in that position is following one in the subframe:
The Candidate Set that the PDCCH or EPDCCH that the 2nd DCI of-is occupied are formed in M1 PDCCH candidate and M2 EPDCCH candidate
The sum of index in conjunction, the M1 and the M2 are M, and the M1 and the M2 are greater than 1 positive integer respectively；
Index of the PDCCH that the 2nd DCI of-is occupied in the candidate collection that M PDCCH candidate forms；
Index of the EPDCCH that the 2nd DCI of-is occupied in the candidate collection that M EPDCCH candidate forms；
Wherein, the M is greater than 1 positive integer.
5. method according to claim 1 to 3, which is characterized in that the scheduling information includes { public tune
One or more of spend information, the specific scheduling information of carrier wave, the specific scheduling information composition of TB }；Wherein, described public
Scheduling information to be suitable for the carrier wave that all K1 carrier waves or the public scheduling information are applicable in be by high-rise letter
Enable configuration.
6. a kind of method in base station for supporting more TB operations, wherein include the following steps:
Step A. sends the first DCI, and the first DCI includes the carrier wave instruction and at least one of of K1 carrier wave:
- the first information: the location information of the 2nd DCI, the location information include that { carrier index of bearing carrier wave transmits subframe
Subframe index, position in subframe } in one or more；
The second information of-: the TB number being scheduled on the qualified carrier wave of each of described K1 carrier wave；
Step B. operates wireless signal on K2 carrier wave in the K1 carrier wave according to scheduling information；
Wherein, the K1 is positive integer, and the first DCI includes at least first information and second in { first information, the second information }
DCI includes the scheduling information or the first DCI only includes the second information and the first DCI in { first information, the second information }
Including the scheduling information；It is described operation be send and the K2 be equal to the K1 or it is described operation be receive and the K2
It is less than or equal to the positive integer of the K1；The qualified carrier wave is the carrier wave of the TB number dynamic variation of carrying；
The step A further includes following steps:
Step A1. sends the 2nd DCI and indicates the scheduling information；
Wherein, for { first information, the second information }, the first DCI includes at least first information therein；
The payload size of first DCI is constant.
7. according to the method described in claim 6, it is characterized in that, the step A further includes following steps:
For step A2. for the payload size of the first given DCI, total TB number according to indicated by the second information determines the tune
Spend the bit number that information occupies；
Wherein, for { first information, the second information }, the first DCI only includes the second information therein.
8. according to the method described in claim 6, it is characterized in that, the step A further includes following steps:
Step A0. determines the payload size of the 2nd DCI according to the second information；
Wherein, the first DCI further includes the second information.
9. according to method described in claim 6-8 any one, which is characterized in that position is following one in the subframe:
The Candidate Set that the PDCCH or EPDCCH that the 2nd DCI of-is occupied are formed in M1 PDCCH candidate and M2 EPDCCH candidate
The sum of index in conjunction, the M1 and the M2 are M, and the M1 and the M2 are greater than 1 positive integer respectively；
Index of the PDCCH that the 2nd DCI of-is occupied in the candidate collection that M PDCCH candidate forms；
Index of the EPDCCH that the 2nd DCI of-is occupied in the candidate collection that M EPDCCH candidate forms；
Wherein, the M is greater than 1 positive integer.
10. a kind of user equipment for supporting more TB processing, wherein including following module:
First module: for receiving the first DCI, the first DCI includes the carrier wave instruction and at least one of of K1 carrier wave:
- the first information: the location information of the 2nd DCI, the location information include that { carrier index of bearing carrier wave transmits subframe
Subframe index, position in subframe } in one or more；
The second information of-: the TB number being scheduled on the qualified carrier wave of each of described K1 carrier wave；
Second module: for operating wireless signal on K2 carrier wave in the K1 carrier wave according to scheduling information；
Wherein, the K1 is positive integer, and the first DCI includes at least first information and second in { first information, the second information }
DCI includes the scheduling information or the first DCI only includes the second information and the first DCI in { first information, the second information }
Including the scheduling information；It is described operation be send and the K2 be equal to the K1 or it is described operation be receive and the K2
It is less than or equal to the positive integer of the K1；The qualified carrier wave is the carrier wave of the TB number dynamic variation of carrying；
First module further include:
It sends the 2nd DCI and indicates the scheduling information；
Wherein, for { first information, the second information }, the first DCI includes at least first information therein；
The payload size of first DCI is constant.
11. a kind of base station equipment for supporting more TB operations, wherein including following module:
First module: for sending the first DCI, the first DCI includes the carrier wave instruction and at least one of of K1 carrier wave:
- the first information: the location information of the 2nd DCI, the location information include that { carrier index of bearing carrier wave transmits subframe
Subframe index, position in subframe } in one or more；
The second information of-: the TB number being scheduled on the qualified carrier wave of each of described K1 carrier wave；
Second module: for operating wireless signal on K2 carrier wave in the K1 carrier wave according to scheduling information；
Wherein, the K1 is positive integer, and the first DCI includes at least first information and second in { first information, the second information }
DCI includes the scheduling information or the first DCI only includes the second information and the first DCI in { first information, the second information }
Including the scheduling information；It is described operation be send and the K2 be equal to the K1 or it is described operation be receive and the K2
It is less than or equal to the positive integer of the K1；The qualified carrier wave is the carrier wave of the TB number dynamic variation of carrying；
First module further include:
It sends the 2nd DCI and indicates the scheduling information；
Wherein, for { first information, the second information }, the first DCI includes at least first information therein；
The payload size of first DCI is constant.
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| CN108347312B (en) * | 2017-01-25 | 2020-06-16 | 华为技术有限公司 | Control information sending and receiving method, network equipment and terminal equipment |
| RU2730686C1 (en) | 2017-04-27 | 2020-08-25 | Гуандун Оппо Мобайл Телекоммьюникейшнс Корп., Лтд. | Wireless communication method, terminal device and transmitting and receiving nodes |
| CN109067499B (en) | 2017-06-13 | 2020-10-27 | 维沃移动通信有限公司 | Sending method and receiving method of downlink control information and related equipment |
| CN108702759B (en) * | 2017-06-16 | 2020-11-20 | 华为技术有限公司 | Indication method and device |
| WO2019006592A1 (en) * | 2017-07-03 | 2019-01-10 | 南通朗恒通信技术有限公司 | Method and device for use in user equipment and base station of multi-antenna communications |
| CN109309547B (en) | 2017-07-28 | 2020-09-22 | 维沃移动通信有限公司 | Downlink control information detection method, transmission method, terminal and network equipment |
| CN113133119A (en) | 2017-08-10 | 2021-07-16 | 华为技术有限公司 | Method and equipment for configuring resources |
| EP3563620A4 (en) * | 2017-11-17 | 2020-01-08 | ZTE Corporation | Methods, apparatus and systems for determining a size of a feedback signal in a wireless communication |
| CN110149183B (en) | 2018-02-13 | 2021-01-29 | 华为技术有限公司 | Communication device |
| CN110830157B (en) * | 2018-08-10 | 2021-01-26 | 维沃移动通信有限公司 | Method and device for transmitting control information |
| CN110830208B (en) * | 2018-08-10 | 2022-04-29 | 中兴通讯股份有限公司 | Downlink control information transmission method and device |
| JP7336585B2 (en) * | 2019-07-29 | 2023-08-31 | 華為技術有限公司 | Information transmission method, terminal device and network device |
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