CN103516466B - A kind of control channel resource mapping method, transmitter, receiver and system - Google Patents
A kind of control channel resource mapping method, transmitter, receiver and system Download PDFInfo
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- CN103516466B CN103516466B CN201210208436.0A CN201210208436A CN103516466B CN 103516466 B CN103516466 B CN 103516466B CN 201210208436 A CN201210208436 A CN 201210208436A CN 103516466 B CN103516466 B CN 103516466B
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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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0067—Rate matching
- H04L1/0068—Rate matching by puncturing
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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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0072—Error control for data other than payload data, e.g. control data
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Abstract
The embodiment of the present invention provides one to control channel resource mapping method, Apparatus and system, relate to communication field, can solve the problem that the output data length after the control chnnel coding caused in the case of not knowing the data length that the control Channel Physical subelement being mapped to can be placed and rate-matched and control the Channel Physical subelement unmatched problem of open ended data length, the method comprises determining that the RE number reference value controlling Channel Physical subelement；Determine the data length after ePDCCH coding and rate-matched, the data after ePDCCH coding and rate-matched are mapped as symbol sebolic addressing；According to ePDCCH will be mapped to control total RE actual number of Channel Physical subelement and ePDCCH coding and rate-matched after data length in symbol sebolic addressing, choose a number of symbol carry out symbol repetition or symbol punching forms new symbol sebolic addressing；New symbol sebolic addressing is mapped on the control Channel Physical subelement of correspondence.Embodiments of the invention are applied to channel resource and map.
Description
Technical field
The present invention relates to communication field, particularly relate to a kind of control channel resource mapping method, transmitter, receiver and be
System.
Background technology
In LTE (Long Term Evolution, Long Term Evolution) Rel-11 (version 11), owing to considering CoMP
(coordinated multiple points, collaborative multicast communication), MU-MIMO (multi-user transmission) enhancing etc., PDCCH
The capacity of (physical downlink control channel, Physical Downlink Control Channel) becomes restriction throughput of system
The bottleneck improved.Therefore (The 3rd Generation Partnership Project, third generation affiliate counts 3GPP
Draw) the middle capacity considering to further enhance PDCCH, the PDCCH channel of enhancing is referred to as ePDCCH (enhanced physical
Downlink control channel, strengthens Physical Downlink Control Channel), i.e. at former PDSCH (the most descending shared letter
Road) in part resource as ePDCCH.As PDCCH is by one or more CCE (control channel element, control
Channel Elements processed) or REG (resource unit group) composition as, ePDCCH will be by one or more eCCE (CCE of enhancing) or eREG
(REG of enhancing) forms.
When PDCCH is carried out chnnel coding, owing to RE number and the modulation system of each CCE/REG are fixing, i.e.
In each CCE/REG, RE (resource element, Resource Unit) number is 36, and modulation system is QPSK (quadrature
Phase shift keying, QPSK), therefore each CCE can place 72bits.Then for each PDCCH, one
The CCE number of its correspondence of denier determines, the data length after its coding and rate-matched also determines that, and this coding and speed
Join rear data length and the resource that will be mapped to necessarily is mated.Such as one CCE number corresponding for PDCCH is 4, then its channel is compiled
Data length after code and rate-matched determine that for 4*72=288bits.
And for eCCE/eREG, due to CRS (the peculiar reference signal in community), the OFDM controlling channel occupancy is (orthogonal
Frequency division multiplexing) symbolic number, CSI-RS (channel condition information-reference signal) port number, DMRS Port (demodulation
Reference signal port, demodulated reference signal port) number uncertain so that the RE number that each eCCE/eREG contains
It is not necessarily known in advance when ePDCCH chnnel coding, causes the data length after ePDCCH chnnel coding and rate-matched likely
Do not mate with the resource that will be mapped to.As a example by the ePDCCH chnnel coding that existing technology realizes, when containing only 1～2 DMRS
During port, it is 24 that eCCE1 can be used for the RE number of ePDCCH mapping, and when containing 3～4 DMRS port, eCCE1 can be used for
The RE number that ePDCCH maps is 22.
Even if it addition, DMRS port number is fixed, PRB pair (Physical Resource Block Pair, a thing
Reason Resource Block to) in each eCCE can be used for ePDCCH transmission RE number do not fix.
During stating in realization, owing to ePDCCH can't determine that when chnnel coding and rate-matched this ePDCCH is
Be mapped to eventually on which eCCE, therefore or be difficult to determine the data length after ePDCCH coding and rate-matched, or coding and
Data length after rate-matched does not mates toward the data length can placed during mapping and on eCCE on eCCE again.
Summary of the invention
Embodiments of the invention provide one to control channel resource mapping method, transmitter, receiver and system, it is possible to solve
The control certainly caused in the case of the data length that the control Channel Physical subelement not knowing finally to be mapped to can be placed
Chnnel coding and rate-matched output length and the control open ended data length of Channel Physical subelement being mapped to are not mated
Problem.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
On the one hand, it is provided that a kind of control channel resource mapping method, including:
Community peculiar reference signal CRS port number according to present sub-frame, the control symbolic number of channel occupancy, channel status
Information reference signal CSI-RS port number and demodulated reference signal DMRS port number determine the resource controlling Channel Physical subelement
Unit R E number reference value；
According to strengthening the modulation system of Physical Downlink Control Channel, convergence rank and described control Channel Physical subelement
RE number reference value determines the data length after strengthening Physical Downlink Control Channel coding and rate-matched, and will strengthen under physics
Data after row controls chnnel coding and rate-matched are mapped as symbol sebolic addressing, and wherein said data length is equal to described symbol sequence
The product of the symbolic number bit number corresponding with each symbol of row；
Real according to the total RE controlling Channel Physical subelement that described enhancing Physical Downlink Control Channel will be mapped to
Border number and described enhancing Physical Downlink Control Channel coding and rate-matched after data length choose in described symbol sebolic addressing
Go out a number of symbol and carry out symbol repetition or symbol punching forms new symbol sebolic addressing, the symbol in described new symbol sebolic addressing
Count is equal to total RE actual number of described control Channel Physical subelement；
Described new symbol sebolic addressing is mapped on the control Channel Physical subelement of correspondence.
Also provide for a kind of control channel resource mapping method, including:
Community peculiar reference signal CRS port number according to present sub-frame, the control symbolic number of channel occupancy, channel status
Information reference signal CSI-RS port number and demodulated reference signal DMRS port number determine the resource controlling Channel Physical subelement
Unit R E number reference value；
The modulation system strengthening Physical Downlink Control Channel, convergence rank and described control channel thing according to current blind check
The RE number reference value of reason subelement determines the data length after strengthening Physical Downlink Control Channel coding and rate-matched, wherein
Described data length is the symbol sebolic addressing that the data after described enhancing Physical Downlink Control Channel coding and rate-matched map
Symbolic number is multiplied by the bit number that in described symbol sebolic addressing, each symbol is corresponding；
Data length after demodulating according to described enhancing Physical Downlink Control Channel and the described enhancing physics of current blind check
Data length after down control channel coding and rate-matched, the symbol after described enhancing Physical Downlink Control Channel demodulates
Sequence is chosen equably and inserts 0 at punching symbol or choose the replicator at each replicator equably and merge into one
Symbol forms new symbol sebolic addressing, and the data length in described new symbol sebolic addressing is equal to described enhancing Physical Downlink Control Channel
Data length after coding and rate-matched；
Described new symbol sebolic addressing output is decoded to solution rate-matched and decoding module.
On the one hand, it is provided that a kind of transmitter, including:
Calculation of natural resources unit, for the community peculiar reference signal CRS port number according to present sub-frame, controls channel occupancy
Symbolic number, channel state information reference signals CSI-RS port number and demodulated reference signal DMRS port number determine control channel
The Resource Unit RE number reference value of physical sub-unit；
Coding unit, for according to strengthening the modulation system of Physical Downlink Control Channel, converging rank and described control letter
The RE number reference value of road physical sub-unit determines the data length after strengthening Physical Downlink Control Channel coding and rate-matched,
And the data after strengthening Physical Downlink Control Channel coding and rate-matched are mapped as symbol sebolic addressing, wherein said data length
The product of the bit number corresponding with each symbol equal to the symbolic number of described symbol sebolic addressing；
Adjustment unit, for the control Channel Physical list will being mapped to according to described enhancing Physical Downlink Control Channel
Unit total RE actual number and described enhancing Physical Downlink Control Channel coding and rate-matched after data length described
Symbol sebolic addressing is chosen a number of symbol and carries out symbol repetition or symbol punching forms new symbol sebolic addressing, described new symbol
Symbolic number in number sequence is equal to total RE actual number of described control Channel Physical subelement；
Map unit, for being mapped to the control Channel Physical subelement of correspondence by described new symbol sebolic addressing.
Also provide for a kind of receiver, including:
Resource estimation unit, for the community peculiar reference signal CRS port number according to present sub-frame, controls channel occupancy
Symbolic number, channel state information reference signals CSI-RS port number and demodulated reference signal DMRS port number determine control channel
The Resource Unit RE number reference value of physical sub-unit；
Parameter estimation unit, for the enhancing modulation system of Physical Downlink Control Channel, convergence layer according to current blind check
The RE number reference value of other and described control Channel Physical subelement determines enhancing Physical Downlink Control Channel coding and speed
Data length after joining, wherein said data length is the number after described enhancing Physical Downlink Control Channel coding and rate-matched
It is multiplied by the bit number that in described symbol sebolic addressing, each symbol is corresponding according to the symbolic number of the symbol sebolic addressing mapped；
Adjustment unit, the data length after demodulating according to described enhancing Physical Downlink Control Channel and current blind check
Data length after described enhancing Physical Downlink Control Channel coding and rate-matched, at described enhancing Physical Downlink Control Channel
Symbol sebolic addressing after demodulation is chosen equably and inserts 0 at punching symbol or choose the replicator at each replicator equably
Number merging into a symbol forms new symbol sebolic addressing, and the data length in described new symbol sebolic addressing is equal to described enhancing physics
Data length after down control channel coding and rate-matched；
Output unit, for decoding described new symbol sebolic addressing output to solution rate-matched and decoding module.
On the one hand, it is provided that a kind of network system, including above-mentioned arbitrary transmitter and above-mentioned arbitrary receiver.
Embodiments of the invention provide and control channel resource mapping method, transmitter, receiver and system, it is possible to do not knowing
Make in the case of what road was finally mapped to control the data length that can place of Channel Physical subelement to control chnnel coding and
Rate-matched output length and the control open ended data length of Channel Physical subelement being mapped to match, and effectively utilize control
The resource of channel processed carries out data transmission.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
A kind of control channel resource mapping method schematic flow sheet that Fig. 1 provides for the embodiment of the present invention；
A kind of control channel resource mapping method schematic flow sheet that Fig. 2 provides for another embodiment of the present invention；
A kind of transmitter architecture schematic diagram that Fig. 3 provides for the embodiment of the present invention；
A kind of transmitter architecture schematic diagram that Fig. 4 provides for another embodiment of the present invention；
A kind of receiver structure schematic diagram that Fig. 5 provides for the embodiment of the present invention；
A kind of receiver structure schematic diagram that Fig. 6 provides for another embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Reference prior art to be somebody's turn to do for the transmission process of ePDCCH signal, the transmitter as sending ending equipment
EPDCCH Signal coding is symbol sebolic addressing and sends after mapping to eCCE/eREG to the receiver as receiving device, receives
Machine is demodulated decoding to the ePDCCH signal received.The process that above signal is sent by the present invention does not limits, the present invention
Embodiment only for same ePDCCH signal respectively transmitting end equipment and when being sent to receiving device control
The mode that channel resource maps.
With reference to shown in Fig. 1, a kind of control channel resource mapping method provided for the embodiment of the present invention, at transmitter one
Side, comprises the steps:
S101, transmitter are according to the community peculiar reference signal CRS port number of present sub-frame, the symbol that controls channel occupancy
Number, channel state information reference signals CSI-RS port number and demodulated reference signal DMRS port number determine control Channel Physical
The Resource Unit RE number reference value of unit.
Here the Resource Unit RE number reference value controlling Channel Physical subelement is designated asOptional
, control Channel Physical subelement and include: strengthen and control Channel Elements eCCE, strengthen resource unit group eREG (enhanced
Resource Element Group)；Here, CRS is community peculiar reference signal (Cell-specific reference
Signals), CSI-RS is channel state information reference signals (channel state information-reference
signals)；Here the number that Resource Unit RE number reference value is all RE of present sub-frame controlling Channel Physical subelement subtracts
Remove the community peculiar reference signal CRS port number of present sub-frame, control the symbolic number of channel occupancy, channel condition information with reference to letter
Divided by the number controlling Channel Physical subelement after number CSI-RS port number and demodulated reference signal DMRS port number；Due to one
Subframe comprises multiple be made up of Resource Unit RE control Channel Physical subelement (in the embodiment of the present invention for eCCE or
EREG), the DMRS port number in the most each control channel subelement is uncertain, the most each control Channel Physical list
The RE of unit is also uncertain, the most here to control the Resource Unit RE number of Channel Physical subelement in embodiments of the invention
Reference value characterizes the Resource Unit RE number of each control Channel Physical subelement.
S102, according to strengthen Physical Downlink Control Channel modulation system, converge rank and control Channel Physical subelement
RE number reference value determine the data length after strengthening Physical Downlink Control Channel coding and rate-matched, and physics will be strengthened
Data after down control channel coding and rate-matched are mapped as symbol sebolic addressing, the wherein symbol of data length equal symbol sequence
The product of the bit number that count is corresponding with each symbol.
Optionally, data length is the RE number reference value controlling Channel Physical subelement and modulation system and convergence rank
Product, be designated as data lengthWherein A is for converging rank, and M is the ratio that each RE is corresponding
Special number, when modulation system is QPSK modulation, M=2, when modulation system is 16QAM (Quadrature Amplitude
Modulation, quadrature amplitude modulation) modulation time, M=4, when modulation system is 64QAM modulation, M=6.
S103, the total RE reality controlling Channel Physical subelement will being mapped to according to enhancing Physical Downlink Control Channel
Border number and strengthen Physical Downlink Control Channel coding and rate-matched after data length in symbol sebolic addressing, choose a fixed number
The symbol of amount carries out symbol repetition or symbol punching forms new symbol sebolic addressing, and the new symbolic number in symbol sebolic addressing is equal to controlling
Total RE actual number of Channel Physical subelement.
Here the RE's that the control Channel Physical subelement that enhancing Physical Downlink Control Channel will be mapped to may comprise
Actual number is likely larger than the symbol of the symbol sebolic addressing that the data after strengthening Physical Downlink Control Channel coding and rate-matched map
Count, is also possible to strengthen that Physical Downlink Control Channel will be mapped to controls Channel Physical subelement and may comprise certainly
The actual number of RE is likely less than the symbol sebolic addressing that the data after strengthening Physical Downlink Control Channel coding and rate-matched map
Symbolic number；
Therefore optional, when the symbolic number in symbol sebolic addressing is less than strengthening the control that Physical Downlink Control Channel will be mapped to
During the total RE actual number of Channel Physical subelement, the symbol choosing the first quantity from symbol sebolic addressing equably carries out symbol weight
Multiple, form new symbol sebolic addressing, wherein the first quantity is to strengthen the control channel thing that Physical Downlink Control Channel will be mapped to
Manage the total RE actual number of subelement and deduct the symbol that the data after strengthening Physical Downlink Control Channel coding and rate-matched map
Number symbolic number that sequence pair is answered；Data after strengthening Physical Downlink Control Channel ePDCCH coding and rate-matched are mapped as symbol
Being understood the symbolic number of this sequence by the formula in S102 after number sequence is E/M, however assuming that the control that this ePDCCH will be mapped to
The total RE actual number of Channel Physical subelement is K, as E/M < K, uniformly chooses K-E/M symbol and carry out from E/M symbol
Symbol repeats；
Or,
When the symbolic number in symbol sebolic addressing is more than strengthening the control Channel Physical that Physical Downlink Control Channel will be mapped to
During the total RE actual number of subelement, the symbol choosing the second quantity in symbol sebolic addressing equably carries out symbol punching, is formed
New symbol sebolic addressing, wherein the second quantity is the symbol that the data after strengthening Physical Downlink Control Channel coding and rate-matched map
Number symbolic number that sequence pair is answered deduct strengthen that Physical Downlink Control Channel will be mapped to control the RE that Channel Physical subelement is total
Actual number；To strengthen the data after Physical Downlink Control Channel ePDCCH coding and rate-matched be mapped as after symbol sebolic addressing by
It is E/M that formula in S102 understands the symbolic number of this sequence, however assuming that control Channel Physical that this ePDCCH will be mapped to
The total RE actual number of unit is K, as E/M >=K, uniformly chooses E/M-K symbol and carry out symbol and beat from E/M symbol
Hole.
Certainly symbol punching the most here is a kind of pressing mold pattern in broadband communication, will part ratio in bit data flow
Special deletion, so that the symbol reach in data stream, can realize rate-matched based on this technology, but not affect receiving terminal and set
Standby normal decoding；In addition the position punched is that receiving device can be learnt according to algorithm calculating.
S104, new symbol sebolic addressing is mapped to correspondence control Channel Physical subelement on.
Embodiments of the invention provide and control channel resource mapping method, it is possible to solve do not knowing the control that is finally mapped to
The control chnnel coding caused in the case of the data length that Channel Physical subelement processed can be placed and rate-matched output are long
Degree and the control Channel Physical subelement unmatched problem of open ended data length being mapped to.
With reference to a kind of control channel resource mapping method shown in Fig. 2, in receiver side, including:
S201, the community peculiar reference signal CRS port number according to present sub-frame, the control symbolic number of channel occupancy, letter
Channel state information reference signal CSI-RS port number and demodulated reference signal DMRS port number determine control Channel Physical subelement
Resource Unit RE number reference value.
The symbolic number that wherein Physical Downlink Control Channel takies can be obtained by detection physical control format detection channel,
Alternate manner can certainly be used to obtain, merely just provide a kind of usual scheme；Here Channel Physical list will be controlled
The Resource Unit RE number reference value of unit is designated asOptionally, control Channel Physical subelement to include: strengthen
Control Channel Elements eCCE, strengthen resource unit group eREG (enhanced Resource Element Group)；Here, CRS
For the peculiar reference signal in community (Cell-specific reference signals), CSI-RS is channel condition information reference
Signal (channel state information-reference signals)；Here the money of Channel Physical subelement is controlled
Source unit RE number reference value is the community peculiar reference signal CRS port that the number of all RE of present sub-frame deducts present sub-frame
Number, the control symbolic number of channel occupancy, channel state information reference signals CSI-RS port number and demodulated reference signal DMRS end
Divided by the number controlling Channel Physical subelement after mouth number；Owing to a subframe comprising multiple control being made up of Resource Unit RE
Channel Physical subelement processed (being eCCE or eREG in the embodiment of the present invention), the DMRS end in the most each control channel subelement
Mouthful number be the RE of the most each uncertain control Channel Physical subelement be also uncertain, embodiments of the invention the most here
In with control Channel Physical subelement Resource Unit RE number reference value characterize each control Channel Physical subelement resource
Unit R E number.
S202, according to current blind check strengthen Physical Downlink Control Channel modulation system, converge rank and control channel
The RE number reference value of physical sub-unit determines the data length after strengthening Physical Downlink Control Channel coding and rate-matched, its
Middle data length is the symbolic number of the symbol sebolic addressing that the data after strengthening Physical Downlink Control Channel coding and rate-matched map
It is multiplied by the bit number that in symbol sebolic addressing, each symbol is corresponding.
Optionally, data length is the RE number reference value controlling Channel Physical subelement and modulation system and convergence rank
Product, be designated as data lengthWherein A is for converging rank, and M is the ratio that each RE is corresponding
Special number, when modulation system is QPSK modulation, M=2；When modulation system is 16QAM modulation, M=4；When modulation system is
During 64QAM modulation, M=6.
S203, according to strengthening the data length after Physical Downlink Control Channel demodulation and the enhancing physical down of current blind check
Control the data length after chnnel coding and rate-matched, in the symbol sebolic addressing after strengthening Physical Downlink Control Channel demodulation all
Choose evenly and insert 0 at punching symbol or choose the replicator at each replicator equably and merge into symbol and formed
New symbol sebolic addressing, the data length in this new symbol sebolic addressing is equal to strengthening Physical Downlink Control Channel coding and rate-matched
After data length.
Optionally, under the enhancing physics less than current blind check of the data length after strengthening Physical Downlink Control Channel demodulation
Symbol sebolic addressing when row controls the data length after chnnel coding and rate-matched, after strengthening Physical Downlink Control Channel demodulation
In choose equably and at the punching symbol of the 3rd quantity, insert 0, wherein the 3rd quantity is the enhancing physical down of current blind check
The symbolic number controlling the symbol sebolic addressing that the data after chnnel coding and rate-matched map deducts enhancing Physical Downlink Control Channel
The symbolic number in symbol sebolic addressing after demodulation；If the RE number controlling Channel Physical subelement total of current blind check is K, then strengthen
Symbol sebolic addressing after Physical Downlink Control Channel demodulation is { a0,a1…aK-1, as E/M >=K, uniformly choosing from K symbol
E/M-K punching symbol at insert 0；Such as E/M=50, K=48, then be input to ePDCCH after aforesaid operations and solve speed
Joining the sequence with decoding module is { a0,a1…ai,0,ai+1…ai+24,0,ai+25…aK-1It is total to E/M symbol；
Or,
Data length after strengthening Physical Downlink Control Channel demodulation controls more than the enhancing physical down of current blind check
During data length after chnnel coding and rate-matched, in the symbol sebolic addressing after strengthening Physical Downlink Control Channel demodulation uniformly
Ground is chosen the symbol of the 4th quantity and is repeated the symbol at place and be weighted averagely being merged into a symbol, and wherein the 4th quantity is for increasing
The symbolic number in symbol sebolic addressing after strong Physical Downlink Control Channel demodulation deducts the enhancing physical down of current blind check and controls letter
The symbolic number of the symbol sebolic addressing that the data after road coding and rate-matched map；Assume the control Channel Physical list of current blind check
Total RE number of unit is K, then the symbol sebolic addressing strengthened in the symbol sebolic addressing after Physical Downlink Control Channel demodulation is { a0,a1…
aK-1, as E/M < K, uniformly choosing at K-E/M replicator from K symbol, the symbol repeated is being weighted averagely
Merge into a symbol；Such as E/M=46, K=48, then be input to ePDCCH after aforesaid operations and solve rate-matched and decoding mould
The sequence of block is { a0,a1…ai-1,(ai+ai+1)/2,ai+2…ai+23,(ai+24+ai+25)/2,ai+26,…aK-1, it is total to E/M symbol
Number.
S204, by new symbol sebolic addressing output to solving rate-matched and decoding module decodes.
The most i.e. using common E/M the symbol exported through aforesaid operations as the solution rate-matched of ePDCCH and decoding module
Input decodes.
Embodiments of the invention provide and control channel resource mapping method, Apparatus and system, it is possible to solve do not knowing
The control chnnel coding caused in the case of the data length that the control Channel Physical subelement being mapped to eventually can be placed and speed
Rate coupling output length and the control Channel Physical subelement unmatched problem of open ended data length being mapped to.
Shown in reference Fig. 3, a kind of transmitter 3 that the embodiment of the present invention provides, including: calculation of natural resources unit 31, coding are single
Unit 32, adjustment unit 33 and map unit 34, wherein:
Calculation of natural resources unit 31, accounts for for the community peculiar reference signal CRS port number according to present sub-frame, control channel
Symbolic number, channel state information reference signals CSI-RS port number and demodulated reference signal DMRS port number determine control letter
The Resource Unit RE number reference value of road physical sub-unit；
Coding unit 32, for according to strengthening the modulation system of Physical Downlink Control Channel, converging rank and control channel
The RE number reference value of physical sub-unit determines the data length after strengthening Physical Downlink Control Channel coding and rate-matched, and
Data after strengthening Physical Downlink Control Channel coding and rate-matched are mapped as symbol sebolic addressing, and wherein data length is equal to symbol
The product of the bit number that the symbolic number of number sequence is corresponding with each symbol；
Adjustment unit 33, for according to strengthening the control Channel Physical subelement that Physical Downlink Control Channel will be mapped to
Total RE actual number and strengthen Physical Downlink Control Channel coding and rate-matched after data length in described symbol sequence
Row are chosen a number of symbol and carries out symbol repetition or symbol punching forms new symbol sebolic addressing, in new symbol sebolic addressing
Symbolic number is equal to the total RE actual number controlling Channel Physical subelement；
Map unit 34, for being mapped to the control Channel Physical subelement of correspondence by new symbol sebolic addressing.
Embodiments of the invention provide transmitter, it is possible to solve do not knowing the control Channel Physical list that is finally mapped to
The control chnnel coding caused in the case of the data length that unit can place and rate-matched export length and the control being mapped to
The Channel Physical subelement processed unmatched problem of open ended data length.
Optional with reference to shown in Fig. 4, adjustment unit 33 includes:
Duplicon unit 331, for reflecting less than strengthening Physical Downlink Control Channel when the symbolic number in symbol sebolic addressing
Be mapped to when controlling the total RE actual number of Channel Physical subelement, symbol sebolic addressing is chosen the symbol of the first quantity equably
Carrying out symbol repetition, form new symbol sebolic addressing, wherein the first quantity is to strengthen Physical Downlink Control Channel will be mapped to
The RE actual number controlling Channel Physical subelement total deducts the symbolic number in symbol sebolic addressing；
And/or,
Punching subelement 332, for reflecting more than strengthening Physical Downlink Control Channel when the symbolic number in symbol sebolic addressing
Be mapped to when controlling the total RE actual number of Channel Physical subelement, from symbol sebolic addressing, choose the symbol of the second quantity equably
Carrying out symbol punching, form new symbol sebolic addressing, the symbolic number during wherein the second quantity is symbol sebolic addressing deducts under enhancing physics
What row control channel will be mapped to controls the RE number that Channel Physical subelement is total.
With reference to shown in Fig. 5, the embodiment of the present invention provides a kind of receiver 5, including: resource estimation unit 51, blind check parameter
Estimation unit 52, adjustment unit 53 and output unit 54, wherein:
Resource estimation unit 51, accounts for for the community peculiar reference signal CRS port number according to present sub-frame, control channel
Symbolic number, channel state information reference signals CSI-RS port number and demodulated reference signal DMRS port number determine control letter
The Resource Unit RE number reference value of road physical sub-unit；
Parameter estimation unit 52, for the enhancing modulation system of Physical Downlink Control Channel, convergence according to current blind check
The RE number reference value of rank and described control Channel Physical subelement determines enhancing Physical Downlink Control Channel coding and speed
Data length after coupling, wherein data length is that the data after strengthening Physical Downlink Control Channel coding and rate-matched map
The symbolic number of symbol sebolic addressing be multiplied by the bit number that in symbol sebolic addressing, each symbol is corresponding；
Adjustment unit 53, for according to strengthening the data length after Physical Downlink Control Channel demodulates and the increasing of current blind check
Data length after strong Physical Downlink Control Channel coding and rate-matched, the symbol after strengthening Physical Downlink Control Channel demodulation
Number sequence is chosen equably and inserts 0 at punching symbol or choose the replicator at each replicator equably and merge into one
Individual symbol forms new symbol sebolic addressing, the new data length in symbol sebolic addressing equal to strengthen Physical Downlink Control Channel coding and
Data length after rate-matched；
Output unit 54, for decoding new symbol sebolic addressing output to solution rate-matched and decoding module.
The receiver that embodiments of the invention provide, it is possible to solve do not knowing that the control Channel Physical being finally mapped to is sub
The control chnnel coding output length caused in the case of the data length that unit can be placed and the control channel thing being mapped to
The reason subelement unmatched problem of open ended data length.
With reference to shown in Fig. 6, adjustment unit 53 includes:
Insert 0 subelement 531, for the data length after strengthening Physical Downlink Control Channel demodulation less than current blind check
When strengthening the data length after Physical Downlink Control Channel coding and rate-matched, after strengthening Physical Downlink Control Channel demodulation
Symbol sebolic addressing in choose equably and at the punching symbol of the 3rd quantity, insert 0, wherein the 3rd quantity is the enhancing of current blind check
The symbolic number of the symbol sebolic addressing that the data after Physical Downlink Control Channel coding and rate-matched map deducts enhancing physical down
Control the symbolic number in the symbol sebolic addressing after channel demodulation；
And/or,
Merge subelement 532, for the data length after strengthening Physical Downlink Control Channel demodulation more than current blind check
Strengthen Physical Downlink Control Channel coding and rate-matched after data length time, strengthen Physical Downlink Control Channel demodulation
After symbol sebolic addressing in choose the symbol of the 4th quantity equably and repeat the symbol at place and be weighted averagely being merged into a symbol,
4th quantity is the enhancing thing that the symbolic number in the symbol sebolic addressing after strengthening Physical Downlink Control Channel demodulation deducts current blind check
The symbolic number of the symbol sebolic addressing that the data after reason down control channel coding and rate-matched map.
Embodiments of the invention provide a kind of network system, including above-mentioned arbitrary transmitter and above-mentioned arbitrary reception
Machine.
Here, transmitter can be base station；Receiver can be mobile terminal.
The network system that the embodiment of the present invention provides, it is possible to solve do not knowing that the control Channel Physical being finally mapped to is sub
The control chnnel coding that causes in the case of the data length that unit can be placed and rate-matched output length and be mapped to
Control the Channel Physical subelement unmatched problem of open ended data length.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can be passed through
The hardware that programmed instruction is relevant completes, and aforesaid program can be stored in a computer read/write memory medium, this program
Upon execution, perform to include the step of said method embodiment；And aforesaid storage medium includes: ROM, RAM, magnetic disc or light
The various medium that can store program code such as dish.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art, in the technical scope that the invention discloses, can readily occur in change or replace, should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (14)
1. one kind controls channel resource mapping method, it is characterised in that including:
Community peculiar reference signal CRS port number according to present sub-frame, the control symbolic number of channel occupancy, channel condition information
Reference signal CSI-RS port number and demodulated reference signal DMRS port number determine the Resource Unit controlling Channel Physical subelement
RE number reference value, wherein, the Resource Unit RE number reference value controlling Channel Physical subelement is all RE of present sub-frame
Number deducts the community peculiar reference signal CRS port number of present sub-frame, controls the symbolic number of channel occupancy, channel condition information
Divided by the number controlling Channel Physical subelement after reference signal CSI-RS port number and demodulated reference signal DMRS port number；
According to strengthening the modulation system of Physical Downlink Control Channel, converging RE of rank and described control Channel Physical subelement
Number reference value determines the data length after strengthening Physical Downlink Control Channel coding and rate-matched, and will strengthen physical down control
Data after chnnel coding processed and rate-matched are mapped as symbol sebolic addressing, and wherein said data length is equal to described symbol sebolic addressing
The product of the bit number that symbolic number is corresponding with each symbol；
Actual of the total RE controlling Channel Physical subelement will being mapped to according to described enhancing Physical Downlink Control Channel
Count the data length encoded with described enhancing Physical Downlink Control Channel and after rate-matched, in described symbol sebolic addressing, choose one
The symbol of determined number carries out symbol repetition or symbol punching forms new symbol sebolic addressing, the symbolic number in described new symbol sebolic addressing
Total RE actual number equal to described control Channel Physical subelement；
Described new symbol sebolic addressing is mapped on the control Channel Physical subelement of correspondence.
Method the most according to claim 1, it is characterised in that described will according to described enhancing Physical Downlink Control Channel
The total RE actual number controlling Channel Physical subelement being mapped to and described enhancing Physical Downlink Control Channel encode and speed
Data length after rate coupling is chosen a number of symbol in described symbol sebolic addressing and is carried out symbol repetition or symbol punching bag
Include:
When the control channel that the symbolic number in described symbol sebolic addressing will be mapped to less than described enhancing Physical Downlink Control Channel
During the total RE actual number of physical sub-unit, the symbol choosing the first quantity in described symbol sebolic addressing equably carries out symbol weight
Multiple, form new symbol sebolic addressing, wherein said first quantity is the control that described enhancing Physical Downlink Control Channel will be mapped to
The total RE actual number of Channel Physical subelement processed deducts the symbolic number in described symbol sebolic addressing；
Or,
When the control channel that the symbolic number in described symbol sebolic addressing will be mapped to more than described enhancing Physical Downlink Control Channel
During the total RE actual number of physical sub-unit, from described symbol sebolic addressing, choose the symbol of the second quantity equably carry out symbol and beat
Hole, forms new symbol sebolic addressing, and wherein said second quantity is that the symbolic number in described symbol sebolic addressing deducts described enhancing physics
What down control channel will be mapped to controls the RE number that Channel Physical subelement is total.
Method the most according to claim 1 and 2, it is characterised in that described according to the tune strengthening Physical Downlink Control Channel
The RE number reference value of mode processed, convergence rank and described control Channel Physical subelement determines enhancing Physical Downlink Control Channel
Data length after coding and rate-matched includes:
Described data length is obtained by below equation:
Wherein, E is data length,For the RE number reference value of described control Channel Physical subelement, A is for converging
Poly-rank, M is the bit number that each RE is corresponding, and eCCE controls Channel Elements for strengthening, and eREG is for strengthening resource unit group；
When modulation system is QPSK modulation, M=2,
When modulation system is 16 quadrature amplitude QAM modulation, M=4,
When modulation system is 64QAM modulation, M=6.
Method the most according to claim 1 and 2, it is characterised in that described control Channel Physical subelement includes: strengthen control
Channel Elements eCCE processed, enhancing resource unit group eREG.
5. one kind controls channel resource mapping method, it is characterised in that including:
Community peculiar reference signal CRS port number according to present sub-frame, the control symbolic number of channel occupancy, channel condition information
Reference signal CSI-RS port number and demodulated reference signal DMRS port number determine the Resource Unit controlling Channel Physical subelement
RE number reference value, wherein, the Resource Unit RE number reference value controlling Channel Physical subelement is all RE of present sub-frame
Number deducts the community peculiar reference signal CRS port number of present sub-frame, controls the symbolic number of channel occupancy, channel condition information
Divided by the number controlling Channel Physical subelement after reference signal CSI-RS port number and demodulated reference signal DMRS port number；
The modulation system strengthening Physical Downlink Control Channel, convergence rank and described control Channel Physical according to current blind check
The RE number reference value of unit determines the data length after strengthening Physical Downlink Control Channel coding and rate-matched, wherein said
Data length is the symbol of the symbol sebolic addressing that the data after described enhancing Physical Downlink Control Channel coding and rate-matched map
Number is multiplied by the bit number that in described symbol sebolic addressing, each symbol is corresponding；
Data length after demodulating according to described enhancing Physical Downlink Control Channel and the described enhancing physical down of current blind check
Control the data length after chnnel coding and rate-matched, the symbol sebolic addressing after described enhancing Physical Downlink Control Channel demodulates
In choose equably and at punching symbol, insert 0 formation new symbol sebolic addressing or choose the replicator at each replicator equably
Number merging into a symbol forms new symbol sebolic addressing, and the data length in described new symbol sebolic addressing is equal to described enhancing physics
Data length after down control channel coding and rate-matched；
Described new symbol sebolic addressing output is decoded to solution rate-matched and decoding module.
Method the most according to claim 5, it is characterised in that described according to the demodulation of described enhancing Physical Downlink Control Channel
After data length and current blind check described enhancing Physical Downlink Control Channel coding and rate-matched after data length,
Symbol sebolic addressing after the demodulation of described enhancing Physical Downlink Control Channel is chosen equably and at punching symbol, inserts the symbol that 0 formation is new
Number sequence or choose the replicator at each replicator equably and merge into a symbol and form new symbol sebolic addressing and include:
Data length after described enhancing Physical Downlink Control Channel demodulates is less than the described enhancing physics of described current blind check
Down control channel coding and rate-matched after data length time, described enhancing Physical Downlink Control Channel demodulate after symbol
Choosing equably in number sequence and insert 0 at the punching symbol of the 3rd quantity, wherein said 3rd quantity is described current blind check
The symbolic number of the symbol sebolic addressing that the data after described enhancing Physical Downlink Control Channel coding and rate-matched map deducts described
Strengthen the symbolic number in the symbol sebolic addressing after Physical Downlink Control Channel demodulation；
Or,
Data length after described enhancing Physical Downlink Control Channel demodulates is more than the described enhancing physics of described current blind check
Down control channel coding and rate-matched after data length time, described enhancing Physical Downlink Control Channel demodulate after symbol
Number sequence is chosen the symbol of the 4th quantity equably repeat the symbol at place and be weighted averagely being merged into a symbol, described the
Four quantity are that the symbolic number in the symbol sebolic addressing after the demodulation of described enhancing Physical Downlink Control Channel deducts described current blind check
The symbolic number of the symbol sebolic addressing that the data after described enhancing Physical Downlink Control Channel coding and rate-matched map.
7. according to the method described in claim 5 or 6, it is characterised in that the enhancing physical down control of the current blind check of described basis
The RE number reference value of the modulation system of channel processed, convergence rank and described control Channel Physical subelement determines under enhancing physics
Data length after row controls chnnel coding and rate-matched includes:
Described data length is obtained by below equation:
Wherein, E is data length,For the RE number reference value of described control Channel Physical subelement, A is for converging
Poly-rank, M is the bit number that each RE is corresponding, and eCCE controls Channel Elements for strengthening, and eREG is for strengthening resource unit group；
When modulation system is QPSK modulation, M=2,
When modulation system is 16 quadrature amplitude QAM modulation, M=4,
When modulation system is 64QAM modulation, M=6.
8. according to the method described in claim 5 or 6, it is characterised in that described control Channel Physical subelement includes: strengthen control
Channel Elements eCCE processed, enhancing resource unit group eREG.
9. a transmitter, it is characterised in that including:
Calculation of natural resources unit, for the community peculiar reference signal CRS port number according to present sub-frame, the symbol of control channel occupancy
Count, channel state information reference signals CSI-RS port number and demodulated reference signal DMRS port number determine control Channel Physical
The Resource Unit RE number reference value of subelement, wherein, the Resource Unit RE number reference value controlling Channel Physical subelement is
The number of all RE of present sub-frame deducts the community peculiar reference signal CRS port number of present sub-frame, controls the symbol of channel occupancy
Divided by controlling channel thing after count, channel state information reference signals CSI-RS port number and demodulated reference signal DMRS port number
The number of reason subelement；
Coding unit, for according to strengthening the modulation system of Physical Downlink Control Channel, converging rank and described control channel thing
The RE number reference value of reason subelement determines the data length after strengthening Physical Downlink Control Channel coding and rate-matched, and will
Strengthening the data after Physical Downlink Control Channel coding and rate-matched and be mapped as symbol sebolic addressing, wherein said data length is equal to
The product of the bit number that the symbolic number of described symbol sebolic addressing is corresponding with each symbol；
Adjustment unit, controls Channel Physical subelement for will be mapped to according to described enhancing Physical Downlink Control Channel
Total RE actual number and described enhancing Physical Downlink Control Channel coding and rate-matched after data length at described symbol
Sequence is chosen a number of symbol and carries out symbol repetition or symbol punching forms new symbol sebolic addressing, described new symbol sequence
Symbolic number in row is equal to total RE actual number of described control Channel Physical subelement；
Map unit, for being mapped to the control Channel Physical subelement of correspondence by described new symbol sebolic addressing.
Transmitter the most according to claim 9, it is characterised in that described adjustment unit includes:
Duplicon unit, for reflecting less than described enhancing Physical Downlink Control Channel when the symbolic number in described symbol sebolic addressing
Be mapped to when controlling the total RE actual number of Channel Physical subelement, described symbol sebolic addressing is chosen the first quantity equably
Symbol carries out symbol repetition, forms new symbol sebolic addressing, and wherein said first quantity is described enhancing Physical Downlink Control Channel
The RE actual number controlling Channel Physical subelement total that will be mapped to deducts the symbolic number in described symbol sebolic addressing；
And/or,
Punching subelement, for reflecting more than described enhancing Physical Downlink Control Channel when the symbolic number in described symbol sebolic addressing
Be mapped to when controlling the total RE actual number of Channel Physical subelement, from described symbol sebolic addressing, choose the second quantity equably
Symbol carries out symbol punching, forms new symbol sebolic addressing, and wherein said second quantity is that the symbolic number in described symbol sebolic addressing subtracts
Go what described enhancing Physical Downlink Control Channel will be mapped to control the RE number that Channel Physical subelement is total.
11. 1 kinds of receivers, it is characterised in that including:
Resource estimation unit, for the community peculiar reference signal CRS port number according to present sub-frame, the symbol of control channel occupancy
Count, channel state information reference signals CSI-RS port number and demodulated reference signal DMRS port number determine control Channel Physical
The Resource Unit RE number reference value of subelement, wherein, the Resource Unit RE number reference value controlling Channel Physical subelement is
The number of all RE of present sub-frame deducts the community peculiar reference signal CRS port number of present sub-frame, controls the symbol of channel occupancy
Divided by controlling channel thing after count, channel state information reference signals CSI-RS port number and demodulated reference signal DMRS port number
The number of reason subelement；
Parameter estimation unit, for according to current blind check strengthen Physical Downlink Control Channel modulation system, converge rank and
After the RE number reference value of described control Channel Physical subelement determines enhancing Physical Downlink Control Channel coding and rate-matched
Data length, wherein said data length be described enhancing Physical Downlink Control Channel coding and rate-matched after data reflect
The symbolic number of the symbol sebolic addressing penetrated is multiplied by the bit number that in described symbol sebolic addressing, each symbol is corresponding；
Adjustment unit, for according to described in the data length after the demodulation of described enhancing Physical Downlink Control Channel and current blind check
Strengthen the data length after Physical Downlink Control Channel coding and rate-matched, demodulate at described enhancing Physical Downlink Control Channel
After symbol sebolic addressing in choose equably and at punching symbol, insert 0 formation new symbol sebolic addressing or choose each replicator equably
Replicator at number is merged into a symbol and is formed new symbol sebolic addressing, and the data length in described new symbol sebolic addressing is equal to
Data length after described enhancing Physical Downlink Control Channel coding and rate-matched；
Output unit, for decoding described new symbol sebolic addressing output to solution rate-matched and decoding module.
12. receivers according to claim 11, it is characterised in that described adjustment unit includes:
Inserting 0 subelement, the data length after demodulating at described enhancing Physical Downlink Control Channel is less than described current blind check
Described enhancing Physical Downlink Control Channel coding and rate-matched after data length time, described enhancing physical down control
Choosing equably in symbol sebolic addressing after channel demodulation and insert 0 at the punching symbol of the 3rd quantity, wherein said 3rd quantity is
The symbol sebolic addressing that data after the described enhancing Physical Downlink Control Channel coding of described current blind check and rate-matched map
Symbolic number deducts the symbolic number in the symbol sebolic addressing after the demodulation of described enhancing Physical Downlink Control Channel；
And/or,
Merging subelement, the data length after demodulating at described enhancing Physical Downlink Control Channel is more than described current blind check
Described enhancing Physical Downlink Control Channel coding and rate-matched after data length time, described enhancing physical down control
Symbol sebolic addressing after channel demodulation is chosen the symbol of the 4th quantity equably repeat the symbol at place and be weighted averagely being merged into
One symbol, described 4th quantity is that the symbolic number in the symbol sebolic addressing after the demodulation of described enhancing Physical Downlink Control Channel deducts
The symbol sebolic addressing that data after the described enhancing Physical Downlink Control Channel coding of described current blind check and rate-matched map
Symbolic number.
13. 1 kinds of network systems, it is characterised in that include the transmitter described in claim 9 or 10 and claim 11 or 12
Described arbitrary receiver.
14. systems according to claim 13, it is characterised in that described transmitter is base station；
Described receiver is mobile terminal.
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| CN201210208436.0A CN103516466B (en) | 2012-06-21 | 2012-06-21 | A kind of control channel resource mapping method, transmitter, receiver and system |
| PCT/CN2013/076311 WO2013189228A1 (en) | 2012-06-21 | 2013-05-28 | Control channel resource mapping method, apparatus and system |
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| CN201210208436.0A CN103516466B (en) | 2012-06-21 | 2012-06-21 | A kind of control channel resource mapping method, transmitter, receiver and system |
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| CN105007600A (en) * | 2014-04-15 | 2015-10-28 | 中兴通讯股份有限公司 | Downlink data rate matching method and apparatus |
| KR20180084735A (en) | 2015-11-13 | 2018-07-25 | 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 | Radio resource allocation method and apparatus |
| CN107734710B (en) | 2016-08-11 | 2023-05-05 | 中兴通讯股份有限公司 | Data transmission method and device |
| CN107888319B (en) * | 2017-11-03 | 2019-04-30 | 国网四川省电力公司电力科学研究院 | Variable bit rate communication means suitable for acquisition terminal uplink communication |
| CN110535582B (en) * | 2018-08-10 | 2022-07-05 | 中兴通讯股份有限公司 | Transmission method and device of physical control channel, sending end equipment and storage medium |
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| DE19916069A1 (en) * | 1999-04-09 | 2000-10-19 | Siemens Ag | Signaling procedure in the RACH channel |
| CN101605023B (en) * | 2008-06-10 | 2013-01-16 | 中兴通讯股份有限公司 | Method and device for mapping control channel sources |
| CN102315916B (en) * | 2010-07-06 | 2013-12-04 | 华为技术有限公司 | Method and device for sending downlink distribution indication, method and device for feeding back responder channel |
| CN102711253B (en) * | 2012-03-21 | 2015-02-18 | 电信科学技术研究院 | E-PDCCH (Enhanced-Physical Downlink Control Channel) resource mapping method and device therefor |
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