CN106559174A - Physical Uplink Control Channel processing method and processing device - Google Patents
Physical Uplink Control Channel processing method and processing device Download PDFInfo
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- CN106559174A CN106559174A CN201510633280.4A CN201510633280A CN106559174A CN 106559174 A CN106559174 A CN 106559174A CN 201510633280 A CN201510633280 A CN 201510633280A CN 106559174 A CN106559174 A CN 106559174A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1861—Physical mapping arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
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Abstract
The invention discloses Physical Uplink Control Channel processing method and processing device, the method includes：Obtaining needs the bit of feedback；The Physical Resource Block PRB numbers of Physical Uplink Control Channel PUCCH mappings are increased according to the quantity of the bit and/or increases the available PUCCH number of sub frames.Solve the problems, such as that by the present invention feedback of PUCCH of the prior art cannot meet greater number carrier wave requirement, support more number of carrier wave.
Description
Technical field
The present invention relates to communication field, in particular to Physical Uplink Control Channel processing method and processing device.
Background technology
The R10 of LTE-A introduces multiple component carriers (CC, component carrier), and terminal can be simultaneously
Receiving data is transmitted on multiple CC, so as to reach the purpose for lifting bandwidth, the technology is referred to as
Multi-carrier polymerizing technology, maximum can support 5 carrier aggregations.The carrier aggregation of LTE R11 introduces many TA
Support in (Timing Advance, timing advance) and inter-band that the difference descending sub-frame of uplink of TDD is matched somebody with somebody
The technology of ratio.LTE R12 carrier aggregations introduce the carrier aggregation of TDD and FDD different systems.Current R13
In new project verification enhanced carrier aggregation technology, discuss it is maximum more than 5 carrier waves support 32 carrier aggregations, so
Physical Uplink Control Channel PUCCH (Physical Uplink Control Channel) is needed to feed back more ratios
Special HARQ-ACK, and SR (Scheduling Request, dispatch request), CSI report.
There are the PUCCH format of two kinds of support carrier aggregations, respectively Channel assignment PUCCH format at present
1b and PUCCH format 3.PUCCH format 1b could support up 2 carrier aggregations.PUCCH format
3 do not limit carrier aggregation number, support that for FDD is maximum the HARQ feedback and 1bit SR of 10bit please
Ask, and the CSI of 11bit is reported；The HARQ feedback and 1bit SR of 20bit are supported for TDD is maximum
Request.
3 channel designs of PUCCH format are illustrated in fig. 1 shown below, and wherein combined coding part will
HARQ-ARQ, SR and CSI bit is connected by this sequencing；RM of the RM codings using (32, X)
Coded system, is output as 48bit；The scrambler of scrambling is related to the RNTI of cell physics ID and UE
Pseudo-random sequence；Modulation system is QPSK, and 24 symbols are output as after modulation；Front 12 symbols mapping
To first slot of 3 corresponding PRB of PUCCH format, 12 symbols are mapped to corresponding PRB's afterwards
Second slot.The 2symbol that PUCCH DMRS are accounted in a time slot during Normal CP, remaining 5
Individual symbol is PUCCH data resource.
During Normal CP, front 12 modulation symbols need after carrying out frequency shift (FS) withOrthogonal sequence phase
Taking advantage of carries out block extension, afterwards 12 modulation symbols carry out after frequency shift (FS) withOrthogonal sequence is multiplied carries out block
Extension, spreading factor are 5, and 10 groups of 12 symbol sebolic addressings are obtained altogether；Then carry out DFT transform life
Into the frequency domain data of 10 groups of 12 symbols；Finally carry out IFFT and transform to time domain, carry out PUCCH's
Send.
When feedback bit of PUCCH format 3 is less than or equal to 11, RM (32, X) volumes are carried out to which
32 bits are exported after code, 16bit information obtains 48bit data before repeating, then carry out scrambling modulation etc.
Operation；When bit being fed back more than or equal to 12 and be less than or equal to 22, data are equally divided into into two pieces, per block
Data export 32 bits after carrying out RM (32, X) codings respectively, take the front 24bit of 32bit respectively
Data cube computation is carried out, 48bit data are obtained, then carries out scrambling modulation etc. operation；
Which RB PUCCH format 3 are mapped to configures depending on high-level signaling n3PUCCH-AN-List
And DCI information selects corresponding from above-mentioned configurationWhen be configured with send out diversity when, while select day
Line 1Its PRB resource location is expressed as
Whether SRS is configured with according to sub-frame of uplink, then the available symbol numbers of second slot may be 5
It is likely to as 4.When SRS is configured with, 43 resources of PUCCH in a RB pair, are at most contained,
PUCCH now is referred to as shortened PUCCH format 3；Otherwise it is normal PUCCH
format 3。
PUCCH format 3 could support up the original bit data of 22bit at present, after more than 22bit then not
Can support.
After 32 carrier wave of maximum support, FDD at most needs the data for feeding back 32*2=64bit simultaneously, and
TDD at most needs the data for feeding back 32*4=128bit simultaneously.The feedback of existing PUCCH cannot
Meet and require.
The content of the invention
The invention provides Physical Uplink Control Channel processing method and processing device, of the prior art to solve
The feedback of PUCCH cannot meet the problem of greater number carrier wave requirement.
According to an aspect of the invention, there is provided a kind of Physical Uplink Control Channel processing method, including：
Obtaining needs the bit of feedback；Increase Physical Uplink Control Channel PUCCH according to the quantity of the bit to reflect
The Physical Resource Block PRB numbers penetrated and/or the available PUCCH number of sub frames of increase.
Further, increase the Physical Resource Block PRB numbers of the PUCCH mappings and/or increase available
The PUCCH number of sub frames include one below：According to the quantity of the bit, by the PUCCH
It is mapped on multiple PRB of a subframe；According to the quantity of the bit, the PUCCH is mapped to
In multiple subframes, a PRB in each subframe, is only accounted for；According to the quantity of the bit, it is mapped to multiple
On multiple PRB of subframe, each subframe can account for multiple PRB.
Further, the PUCCH is mapped on multiple PRB of a subframe or is mapped to multiple
Include in subframe：The bit for needing feedback is divided into into multiple pieces；Each block is obtained in being input to an encoder
To output data, to obtaining multiple data blocks；Each data block in the plurality of data block is mapped respectively
To on a PRB in the plurality of PRB, and/or, by each data block in the plurality of data block
It is respectively mapped in each subframe in the plurality of subframe.
Further, the position of first PRB and/or first subframe is by subscription information instruction, other PRB
And/or the position of subframe have high-level signaling indicate or according to first PRB and/or it is described first it is sub
The position of frame obtains.
Further, the data for obtaining carry out processing includes at least one of：Connect, scramble, modulating,
With plus frequency deviation, spread spectrum, DFT, IFFT operate.
According to a further aspect in the invention, a kind of Physical Uplink Control Channel processing meanss are additionally provided, including：
Acquisition module, for obtaining the bit for needing feedback；Mapping block, for being increased according to the quantity of the bit
Plus Physical Resource Block PRB numbers and/or the available institute of increase of Physical Uplink Control Channel PUCCH mappings
State PUCCH number of sub frames.
Further, the mapping block carries out one below：According to the quantity of the bit, will be described
PUCCH is mapped on multiple PRB of a subframe；According to the quantity of the bit, by the PUCCH
It is mapped in multiple subframes, in each subframe, only accounts for a PRB；According to the quantity of the bit, mapping
To on multiple PRB of multiple subframes, each subframe can account for multiple PRB.
Further, the mapping block includes：Division unit, for the bit for needing feedback is divided into
Multiple pieces；Processing unit, is input in an encoder for each block and obtains output data, many to obtaining
Individual data block is processed；Map unit, for each data block in the plurality of data block is reflected respectively
It is mapped in the plurality of PRB PRB, and/or, by each data in the plurality of data block
Block is respectively mapped in each subframe in the plurality of subframe.
Further, the position of first PRB and/or first subframe is by subscription information instruction, other PRB
And/or the position of subframe have high-level signaling indicate or according to first PRB and/or it is described first it is sub
The position of frame obtains.
Further, the process that the processing unit is carried out includes at least one of：Connection, scrambling, tune
System, and plus frequency deviation, spread spectrum, DFT, IFFT operate.
By the present invention, using the bit for obtaining needs feedback；According to the quantity increase of the bit physically
The Physical Resource Block PRB numbers and/or the available PUCCH of increase of row control channel PUCCH mapping
Number of sub frames.The feedback that PUCCH of the prior art is solved by the present invention cannot meet most
The problem that loading gage ripple is required, supports more number of carrier wave.
Description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application,
The schematic description and description of the present invention is used to explain the present invention, does not constitute to improper limit of the invention
It is fixed.In the accompanying drawings：
Fig. 1 is the schematic diagram of 3 channel designs of PUCCH format according to prior art；
Fig. 2 is the flow chart of Physical Uplink Control Channel processing method according to embodiments of the present invention；
Fig. 3 is the structured flowchart of Physical Uplink Control Channel processing meanss according to embodiments of the present invention；
Fig. 4 is that PUCCH according to embodiments of the present invention processes schematic diagram one；
Fig. 5 is that PUCCH according to embodiments of the present invention processes schematic diagram two.
Specific embodiment
It should be noted that the feature in embodiment and embodiment in the case where not conflicting, in the application
Can be mutually combined.Below with reference to the accompanying drawings and in conjunction with the embodiments describing the present invention in detail.
A kind of Physical Uplink Control Channel processing method is present embodiments provided, Fig. 2 is according to present invention enforcement
The flow chart of the Physical Uplink Control Channel processing method of example, as shown in Fig. 2 the flow process comprises the steps：
Step S202, obtaining needs the bit of feedback；
Step S204, increases the physics money of Physical Uplink Control Channel PUCCH mappings according to the quantity of bit
Source block PRB number and/or the available PUCCH number of sub frames of increase.
The feedback that PUCCH of the prior art is solved by above-mentioned steps cannot meet greater number
The problem that carrier wave is required, supports more number of carrier wave.
As an optional embodiment, increase PUCCH mappings Physical Resource Block PRB numbers and/
Or the available PUCCH number of sub frames of increase can include one below：According to the quantity of bit, by PUCCH
It is mapped on multiple PRB of a subframe；According to the quantity of bit, PUCCH is mapped to into multiple subframes
On, a PRB is only accounted in each subframe；According to the quantity of bit, the multiple of multiple subframes are mapped to
On PRB, each subframe can account for multiple PRB.
As an optional embodiment, PUCCH is mapped on multiple PRB of a subframe or
Being mapped in multiple subframes includes：The bit for needing feedback is divided into into multiple pieces；Each block is input to one
Output data is obtained in encoder, to obtaining multiple data blocks；By each data block in multiple data blocks point
It is not mapped in multiple PRB PRB, and/or, by each data block in multiple data blocks point
It is not mapped in each subframe in multiple subframes.
Used as an optional embodiment, the position of first PRB and/or first subframe is by subscribing letter
Breath indicates, the position of other PRB and/or subframe have high-level signaling indicate or according to first PRB and/
Or the position of first subframe obtains.
Used as an optional embodiment, the data for obtaining carry out processing includes at least one of：Connection,
Scrambling, modulation, and plus frequency deviation, spread spectrum, DFT, IFFT operate.
A kind of Physical Uplink Control Channel processing meanss are additionally provided in the present embodiment, and Fig. 3 is according to this
The structured flowchart of the Physical Uplink Control Channel processing meanss of bright embodiment, as shown in figure 3, the device includes
Such as lower module：
Acquisition module 32, for obtaining the bit for needing feedback；
Mapping block 34, for increasing Physical Uplink Control Channel PUCCH mappings according to the quantity of bit
Physical Resource Block PRB numbers and/or the available PUCCH number of sub frames of increase.
Used as an optional embodiment, mapping block carries out one below：According to the quantity of bit, will
PUCCH is mapped on multiple PRB of a subframe；According to the quantity of bit, PUCCH is mapped to
In multiple subframes, a PRB in each subframe, is only accounted for；According to the quantity of bit, multiple subframes are mapped to
Multiple PRB on, each subframe can account for multiple PRB.
Used as an optional embodiment, mapping block includes：Division unit, for feedback will be needed
Bit is divided into multiple pieces；Processing unit, is input in an encoder for each block and obtains output data,
Process to obtaining multiple data blocks；Map unit, for each data block in multiple data blocks is divided
It is not mapped in multiple PRB PRB, and/or, by each data block in multiple data blocks point
It is not mapped in each subframe in multiple subframes.
Used as an optional embodiment, the position of first PRB and/or first subframe is by subscribing letter
Breath indicates, the position of other PRB and/or subframe have high-level signaling indicate or according to first PRB and/
Or the position of first subframe obtains.
Used as an optional embodiment, the process that managing unit is carried out includes at least one of：Connection,
Scrambling, modulation, and plus frequency deviation, spread spectrum, DFT, IFFT operate.
Illustrate with reference to optional example.
Following instance proposes a kind of PUCCH channel design methods for supporting more multi-carrier polymerizing, it would be preferable to support
Feed back more than the HARQ-ACK of 5 carrier aggregations, SR is reported, and CSI is reported.
Example one, the PRB numbers for increasing PUCCH mappings
According to the number of feedback bits, it is mapped on multiple PRB of a subframe.
Example two, the available PUCCH number of sub frames of increase
According to the number of feedback bits, it is mapped in multiple subframes, in each subframe, only accounts for a PRB.
Example three：Increase the PRB and number of sub frames of available PUCCH
According to the number of feedback bits, it is mapped on multiple PRB of multiple subframes, each subframe can account for many
Individual PRB.
In these examples, comprising：
Process of 3 RM coding mappings to 2 PRB/ subframes
More feedback informations are mapped to the process of multiple PRB/ subframes
The method for indicating other PRB/ subframe positions
Below these examples are illustrated
Example one, the PRB numbers for increasing PUCCH mappings
During FDD system, PUCCH needs to be mapped to multiple PRB resources, and its number is expressed as N.Wherein
N is depended on
This PUCCH needs the descending MIMO variable numbers P of support of feedback, and not using descending
MIMO variable number Q, if report SR, and whether carry out CSI and report.
It is that this PUCCH needs number of bits T fed back to include HARQ-ACK for 2*P+Q, SR altogether
Request 1bit, CSI report O bits
If T is less than or equal to 22, a PRB, N=1 are only mapped to.According to former PUCCH format 3
Flow process processed.
Otherwise, need to be mapped to multiple PRB, N is carried out according to following flow processs depending on the number of bits of T
Process.
When 23≤T≤33, sequence is divided into into three pieces, is expressed as
The encoder of a RM (32, X) is input into per block, the output of three RM encoders is 32bit,
It is expressed asData cube computation is carried out according to Fig. 4,WithFirst half carry out data cube computation into
48bit data,Latter half withData cube computation is carried out into 48bit data, this two block number is according to entering respectively
Row scrambling, modulation, and plus frequency deviation, spread spectrum and DFT, IFFT operation, these operation and existing procedure phase
Together.According to being mapped on first PRB, the second block number evidence is mapped on second PRB last first block number.
Wherein first PRB resource location still byIndicate, and second PRB resource location can be just like
Lower two kinds of modes：
1st, andHave fixed corresponding relation, can directly byObtain second PRB resource location
Special N=1,
2nd, second PRB resource location is configured by high-level signaling
Analogized with secondary
As 11*i+1≤T≤11* (i+1), i is that RM encodes number of times.When original bit belongs in different range,
Required RM coding number of times is also different.The span of i be 1 ... 12, due to when 1,2 be prior art,
So only discussing the processing procedure of 3....12.
To simplify description, different RM are encoded into the corresponding relation of number of times and the PRB numbers of final mapping,
There can be the following two kinds：
Operation 1：2 RM coding mappings are to 1 PRB
Operation 2：3 RM coding mappings are to 2 PRB
Other PRB resource locations can have following two kinds of modes：
1st, andHave the corresponding relation of a fixation, can directly byObtain other PRB resource locations
Particularly, Ni=1,2 ...
2nd, other PRB resource locations are configured by high-level signaling.
Example two, the available PUCCH number of sub frames of increase
If T is less than or equal to 22, a PRB of a subframe is only mapped to, (M is what is taken to M=1
Number of sub frames).Flow process according to former PUCCH format 3 is processed.Otherwise, need to be mapped to many height
Frame, M are processed according to following flow processs depending on the number of bits of T.
When 23≤T≤33, sequence is divided into into three pieces, is expressed as
The encoder of a RM (32, X) is input into per block, the output of three RM encoders is 32bit,
It is expressed asData cube computation is carried out according to Fig. 5,WithFirst half carry out data cube computation into
48bit data,Latter half withData cube computation is carried out into 48bit data, this two block number is according to entering respectively
Row scrambling, modulation, and plus frequency deviation, spread spectrum and DFT, IFFT operation, these operation and existing procedure phase
Together.According to being mapped in first subframe, the second block number evidence is mapped in second subframe last first block number.
The PRB resource locations of wherein first subframe still byIndicate, and the PRB of second subframe moneys
Source position such as example one.
Analogized with secondary
As 11*i+1≤T≤11* (i+1), i is that RM encodes number of times.When original bit belongs in different range,
Required RM coding number of times is also different.The span of i be 1 ... 12, due to when 1,2 be prior art,
So only discussing the processing procedure of 3....12.
To simplify description, different RM are encoded into the corresponding relation of number of times and the number of sub-frames of final mapping, can
To there is the following two kinds：
Operation 1：2 RM coding mappings are to 1 subframe
Operation 2：3 RM coding mappings are to 2 subframes
Example three：Increase the PRB and number of sub frames of available PUCCH
It is scheme one, the overlaying scheme of scheme two, increases PRB and number of sub frames.
If T is less than or equal to 22, one PRB of a subframe, N=1, M=1 are only mapped to.According to original
The flow process of PUCCH format 3 is processed.
Otherwise, need to be mapped to the number of bits of multiple subframes and/or 2 PRB, N and M depending on T,
Processed according to following flow processs.
When 23≤T≤33, scheme one is mapped to 2 PRB
As 11*i+1≤T≤11* (i+1), i is that RM encodes number of times.When original bit belongs in different range,
Required RM coding number of times is also different.The span of i be 1 ... 12, due to when 1,2 be prior art,
So only discussing the processing procedure of 3....12.
To simplify description, different RM are encoded into the corresponding relation of number of times and the PRB numbers of final mapping,
There can be the following two kinds：
Operation 1：2 RM coding mappings are to 1 PRB
Operation 2：3 RM coding mappings are to 2 PRB
Each operation both maps to a subframe, that is, have and operate several times, be just mapped to several subframes
The channel condition information of PUCCH more multicarriers can be supported by examples detailed above, realized with support more
Carrier aggregation.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for ability
For the technical staff in domain, the present invention can have various modifications and variations.It is all in the spirit and principles in the present invention
Within, any modification, equivalent substitution and improvements made etc., should be included in protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of Physical Uplink Control Channel processing method, it is characterised in that include：
Obtaining needs the bit of feedback；
The Physical Resource Block of Physical Uplink Control Channel PUCCH mappings is increased according to the quantity of the bit
PRB numbers and/or the available PUCCH number of sub frames of increase.
2. method according to claim 1, it is characterised in that increase the PUCCH mappings
Physical Resource Block PRB numbers and/or the available PUCCH number of sub frames of increase include one below：
According to the quantity of the bit, the PUCCH is mapped on multiple PRB of a subframe；
According to the quantity of the bit, the PUCCH is mapped in multiple subframes, in each subframe
A PRB is accounted for only；
According to the quantity of the bit, it is mapped on multiple PRB of multiple subframes, each subframe can be accounted for
Multiple PRB.
3. method according to claim 2, it is characterised in that the PUCCH is mapped to into
On multiple PRB of individual subframe or it is mapped in multiple subframes and includes：
The bit for needing feedback is divided into into multiple pieces；
Each block obtains output data in being input to an encoder, to obtaining multiple data blocks；
One each data block in the plurality of data block is respectively mapped in the plurality of PRB
On PRB, and/or, each data block in the plurality of data block is respectively mapped to into the plurality of subframe
In each subframe on.
4. method according to claim 3, it is characterised in that first PRB and/or first sub
The position of frame is indicated that by subscription information the position of other PRB and/or subframe has high-level signaling to indicate or root
Obtain according to the position of first PRB and/or first subframe.
5. method according to claim 3, it is characterised in that the data for obtaining carry out process to be included
At least one of：Connection, scrambling, modulation, and plus frequency deviation, spread spectrum, DFT, IFFT operate.
6. a kind of Physical Uplink Control Channel processing meanss, it is characterised in that include：
Acquisition module, for obtaining the bit for needing feedback；
Mapping block, for increasing Physical Uplink Control Channel PUCCH mappings according to the quantity of the bit
Physical Resource Block PRB numbers and/or increase the available PUCCH number of sub frames.
7. device according to claim 6, it is characterised in that the mapping block is carried out with purgation
One：
According to the quantity of the bit, the PUCCH is mapped on multiple PRB of a subframe；
According to the quantity of the bit, the PUCCH is mapped in multiple subframes, in each subframe
A PRB is accounted for only；
According to the quantity of the bit, it is mapped on multiple PRB of multiple subframes, each subframe can be accounted for
Multiple PRB.
8. device according to claim 7, it is characterised in that the mapping block includes：
Division unit, for the bit for needing feedback is divided into multiple pieces；
Processing unit, is input in an encoder for each block and obtains output data, to obtaining many numbers
Processed according to block；
Map unit, it is the plurality of for each data block in the plurality of data block is respectively mapped to
On a PRB in PRB, and/or, each data block in the plurality of data block is respectively mapped to
In each subframe in the plurality of subframe.
9. device according to claim 8, it is characterised in that first PRB and/or first sub
The position of frame is indicated that by subscription information the position of other PRB and/or subframe has high-level signaling to indicate or root
Obtain according to the position of first PRB and/or first subframe.
10. device according to claim 8, it is characterised in that the process that the processing unit is carried out
Including at least one of：Connection, scrambling, modulation, and plus frequency deviation, spread spectrum, DFT, IFFT operate.
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| LG ELECTRONICS: "HARQ-ACK PUCCH transmission for Rel-13 CA", 《3GPP TSG RAN WG1 MEETING #80BIS》 * |
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Application publication date: 20170405 |