CN110149176A - A kind of multi-subband down control channel sending method and base station - Google Patents
A kind of multi-subband down control channel sending method and base station Download PDFInfo
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- CN110149176A CN110149176A CN201810145807.2A CN201810145807A CN110149176A CN 110149176 A CN110149176 A CN 110149176A CN 201810145807 A CN201810145807 A CN 201810145807A CN 110149176 A CN110149176 A CN 110149176A
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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
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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Abstract
The embodiment of the present invention provides a kind of multi-subband down control channel sending method and base station.The described method includes: determining the corresponding physical downlink control channel PDCCH polymerization grade of the UE according to the down channel quality of reported by user equipment UE；According to the corresponding PDCCH polymerization grade of the UE, N number of target mapping subband is chosen, N is corresponding with the PDCCH polymerization grade, and value is the integer more than or equal to 1；PDCCH modulated signal to be sent corresponding to the UE carries out physical resource mapping in target mapping subband.Scheme provided in an embodiment of the present invention can reduce service delay while realizing the effective use of downlink resource.
Description
Technical field
The present embodiments relate to the communications field more particularly to a kind of multi-subband down control channel sending method and bases
It stands.
Background technique
In existing private network application scenarios, when the transmission of list band, only 25kHz bandwidth, 11 subcarriers.In channel quality
When good, PDCCH (Physical Downlink Control Channel, down control channel) transmission is using lesser
Number of repetition to obtain lesser time delay, while occupying less downlink resource；It, both need to be low when bad channel quality
Guarantee performance under signal-to-noise ratio, transmits enough control signalings again, at this time by selecting big number of repetition, ductility when sacrifice
Can, to enhance covering.
Fig. 1 shows a kind of existing list band PDCCH transmission scheme.Wherein, PDCCH repeat press Cycle (period) into
Row tissue.The number of repetition selected in Fig. 1 is 16 times, Cycle 8.Wherein, PDCCH modulated signal, with 8 downlink frames for one
A Cycle is uniformly encoded, is scrambled, rate-matched, modulation etc., and next Cycle uses identical information, and different disturbs
Code, carries out identical process, is finally completed 16 repetitions.After PDCCH modulated signal is sent, can according to search space,
The business information for sending PDSCH (Physical Downlink Shared Channel, DSCH Downlink Shared Channel) carrying, that is, control
It can be with the same sub-band resources of time-sharing multiplex with business.
However, in existing list band PDCCH transmission scheme, on the one hand, system is limited to running time-frequency resource, business throughput
Limited, the bandwidth of the single subband as thread is limited, can not support broadband services；On the other hand, PDCCH and PDSCH
Be time-multiplexed same single sub-band resources, and PDCCH meets covering and require, need according to channel quality to guarantee system performance
Time domain repetition is carried out, the delay performance of business is difficult to ensure, can not support low time delay business demand.
Summary of the invention
For the defects in the prior art, the embodiment of the present invention provide a kind of multi-subband down control channel sending method and
Base station can reduce service delay while realizing the effective use of downlink resource.
On the one hand, the embodiment of the present invention provides a kind of multi-subband down control channel sending method, comprising:
According to the down channel quality of reported by user equipment UE, the corresponding Physical Downlink Control Channel of the UE is determined
PDCCH polymerization grade；
According to the corresponding PDCCH polymerization grade of the UE, N number of target mapping subband is chosen, N and the PDCCH are poly-
It closes grade to correspond to, value is the integer more than or equal to 1；
PDCCH modulated signal progress physical resource to be sent corresponding to the UE reflects in target mapping subband
It penetrates.
Another aspect, the embodiment of the present invention provide a kind of base station, comprising:
Polymerization grade determination unit determines that the UE is corresponding for the down channel quality according to reported by user equipment UE
Physical downlink control channel PDCCH polymerization grade；
Subband selection unit is mapped, for N number of target being chosen and being reflected according to the corresponding PDCCH polymerization grade of the UE
Subband is penetrated, N is corresponding with the PDCCH polymerization grade, and value is the integer more than or equal to 1；
Physical resource map unit, for the to be sent PDCCH corresponding to the UE in target mapping subband
Modulated signal carries out physical resource mapping.
Another aspect, the embodiment of the present invention provide a kind of electronic equipment, including processor, memory and bus, in which:
The processor, the memory complete mutual communication by bus；
The processor can call the computer program in memory, the step of to execute the above method.
In another aspect, the embodiment of the present invention provides a kind of computer readable storage medium, it is stored thereon with computer program,
The step of above method is realized when the program is executed by processor.
Multi-subband down control channel sending method provided in an embodiment of the present invention and base station, by according to user equipment (UE)
The down channel quality reported determines the corresponding physical downlink control channel PDCCH polymerization grade of the UE；According to described UE pairs
The PDCCH polymerization grade answered chooses N number of target mapping subband, and N is corresponding with the PDCCH polymerization grade, value for greater than
Or the integer equal to 1；PDCCH modulated signal to be sent corresponding to the UE carries out physics in target mapping subband
Resource impact.In this way, without repeating to send PDCCH modulated signal in multiple downlink frames, in the effective use for realizing downlink resource
While, reduce service delay.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 shows schematic diagram of the existing list with PDCCH transmission scheme；
Fig. 2 shows the exemplary flows of multi-subband down control channel sending method according to an embodiment of the invention
Figure；
Fig. 3 shows the signal of the corresponding time frame of target mapping subband according to an embodiment of the invention
Figure；
Fig. 4 shows the mapping of the PDCCH modulated signal under difference PDCCH polymerization grade according to an embodiment of the invention
Schematic diagram；
Fig. 5 shows that PDCCH polymerization grade according to an embodiment of the invention is 4, time domain number of repetition is 2, Cycle
Length is that the PDCCH modulated signal of 1 downlink frame length maps schematic diagram；
Fig. 6 shows that PDCCH polymerization grade according to an embodiment of the invention is 8, time domain number of repetition is 2, Cycle
Length is that the PDCCH modulated signal of 1 downlink frame length maps schematic diagram；
Fig. 7 shows PDCCH according to an embodiment of the invention and PDSCH transmission schematic diagram at same frame；
Fig. 8 shows the structural schematic diagram of base station according to an embodiment of the invention；
Fig. 9 shows the entity structure schematic diagram of electronic equipment according to an embodiment of the invention.
Specific embodiment
Clear, complete description is carried out to technical solution of the present invention below with reference to attached drawing, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff obtained all other embodiment without making creative work belongs to the present invention and is protected
The range of shield.
The terms such as " module " used in this application, " device " be intended to include with computer-related entity, such as it is but unlimited
In hardware, firmware, combination thereof, software or software in execution.For example, module can be, and it is not limited to: processing
Process, processor, object, executable program, the thread of execution, program and/or the computer run on device.For example, it counts
Calculating the application program run in equipment and this calculating equipment can be module.One or more modules can be located in execution
In one process and/or thread, a module can also be located on a computer and/or be distributed in two or more calculating
Between machine.
The technical solution that the invention will now be described in detail with reference to the accompanying drawings.
With reference to Fig. 2, it illustrates showing for multi-subband down control channel sending method according to an embodiment of the invention
Example property flow chart.
As shown in Fig. 2, multi-subband down control channel sending method provided in an embodiment of the present invention, may include walking as follows
It is rapid:
S210: the down channel quality reported according to UE determines the corresponding PDCCH polymerization grade of the UE.
Multi-subband down control channel sending method provided in an embodiment of the present invention is suitable for wireless communication private network system
Base station.
In the embodiment of the present invention, it is corresponding that the PDCCH of base station can carry multiple UE (User Equipment, user equipment)
DCI (Downlink Control Information, Downlink Control Information), carries and accounts for needed for the different corresponding DCI of UE
Sub-band number is different；The PDCCH of base station supports different polymerization grades.Different polymerization grades is for indicating different subbands
Number.
In the embodiment of the present invention, it can be pre-configured with a polymerization grade parameter set, wrapped in the polymerization grade parameter set
Included PDDCH support various polymerization grades, such as 1,2,3,4,5 ... alternatively, { 1,2,4,8,16 ... }.Wherein, according to
PDCCH polymerization grade, it may be determined that PDCCH carries the sub-band number that the corresponding DCI of 1 UE is occupied.In practical application, base station is in each UE
When networking, maximum PDCCH polymerization grade is informed to UE, so that UE can attempt each PDCCH polymerization grade in blind examination with this
It is demodulated, judges whether to attempt by CRC correctly, to determine oneself corresponding PDCCH polymerization grade with this, it is poly- according to PDCCH
Close the DCI that grade blind examination goes out oneself.
In the embodiment of the present invention, for each UE, after base station receives the down channel quality that the UE is reported, Ke Yigen
According to the UE down channel quality reported and pre-set polymerization grade threshold value, to determine corresponding PDCCH polymerization of the UE etc.
Grade is then known and carries the corresponding DCI of the UE for the sub-band number of occupancy.
For example, multiple polymerization grade threshold values can be preset, if down channel quality is greater than or equal to first polymerization etc.
Grade threshold value, then PDCCH polymerization grade is 1；If down channel quality is less than the first polymerization grade threshold value and is greater than or equal to second
Polymerization grade threshold value, then PDCCH polymerization grade is 2；If down channel quality is less than the second polymerization grade threshold value and is greater than or waits
In third polymerization grade threshold, then PDCCH polymerization grade is 3；If down channel quality is less than third polymerization grade threshold and big
In or equal to the 4th polymerization grade threshold value, then PDCCH polymerization grade is 4；If down channel quality is less than the 4th polymerization grade threshold
It is worth and is greater than or equal to the 5th polymerization grade threshold value, then PDCCH polymerization grade is 5 ... ....
Alternatively, PDCCH polymerization grade is 1 if down channel quality is greater than or equal to the first polymerization grade threshold value；Under if
Row channel quality is less than the first polymerization grade threshold value and is greater than or equal to the second polymerization grade threshold value, then PDCCH polymerization grade is
2；If down channel quality is less than the second polymerization grade threshold value and is greater than or equal to third polymerization grade threshold, PDCCH polymerization
Grade is 4；If down channel quality is less than third polymerization grade threshold and is greater than or equal to the 4th polymerization grade threshold value,
PDCCH polymerization grade is 8；If down channel quality is less than the 4th polymerization grade threshold value and is greater than or equal to the 5th polymerization grade threshold
Value, then PDCCH polymerization grade is 16 ... ....
S220: according to the corresponding PDCCH polymerization grade of the UE, choosing N number of target mapping subband, N with it is described
PDCCH polymerization grade is corresponding, and value is the integer more than or equal to 1.
In the embodiment of the present invention, after determining the corresponding PDCCH polymerization grade of UE by step S210, base station can root
According to the corresponding PDCCH polymerization grade of UE, the sub-band number N occupied needed for the corresponding DCI of carrying UE is determined, to choose N number of continuous
Subband respectively as target map subband, for carrying the corresponding DCI of UE.In practical application, target maps subband in time domain
One downlink frame length of upper correspondence occupies a subband bandwidth on frequency domain.It is corresponding that Fig. 3 shows a target mapping subband
The schematic diagram of one time frame.
In practical application, the corresponding relationship of the target of PDCCH polymerization grade and selection mapping subband can be with specifically:
Polymerization grade parameter set be 1,2,3,4,5 ... in the case where, PDCCH polymerization grade be 1 when, choose 1 target
Map subband；When PDCCH polymerization grade is 2,2 target mapping subbands are chosen；When PDCCH polymerization grade is 3,3 mesh are chosen
Mark mapping subband；When PDCCH polymerization grade is 4,4 target mapping subbands are chosen；When PDCCH polymerization grade is 5,5 are chosen
Target maps subband ... ....
Alternatively, polymerization grade parameter set be 1,2,3,4,5 ... in the case where, PDCCH polymerization grade be 1 when, choose 1
A target maps subband；When PDCCH polymerization grade is 2,2 target mapping subbands are chosen；When PDCCH polymerization grade is 3, choose
4 targets map subband；When PDCCH polymerization grade is 4,8 target mapping subbands are chosen；When PDCCH polymerization grade is 5, choosing
Take 16 target mapping subbands ... ....
Alternatively, polymerization grade parameter set be { 1,2,4,8,16 ... } in the case where, as shown in figure 4, PDCCH polymerization grade with
The corresponding relationship of the target mapping subband of selection, can be with specifically: when PDCCH polymerization grade is 1, chooses 1 target mapping
Band；When PDCCH polymerization grade is 2,2 target mapping subbands are chosen；When PDCCH polymerization grade is 4,4 target mappings are chosen
Subband；When PDCCH polymerization grade is 8,8 target mapping subbands are chosen；When PDCCH polymerization grade is 16,16 targets are chosen
Map subband ... ....
S230: PDCCH modulated signal to be sent corresponding to the UE carries out physics in target mapping subband
Resource impact.
It is N number of corresponding for carrying the UE being selected by step S220 for each UE in the embodiment of the present invention
After the target mapping subband of DCI, can DCI corresponding to the UE carry out the processing such as CRC, channel coding, scrambling, by what is obtained
Modulated signal is determined as PDCCH modulated signal to be sent.Then, in the corresponding physics money of N number of target mapping subband of selection
The mapping of PDCCH modulated signal is carried out in source.
In practical application, after determining PDCCH modulated signal to be sent, mapping PDCCH modulated signal can be determined
Required OFDM (Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexing) symbol lengths.
Then, subband and the OFDM symbol length are mapped according to target, in the corresponding physical resource of a downlink frame described in progress
The mapping of the corresponding PDCCH modulated signal to be sent of UE.
It, can be according to first frequency when mapping PDCCH modulated signal to be sent to target mapping subband in practical application
The principle of time domain or the principle according to frequency domain after first time domain behind domain.
Specifically, the son that can first map the identical orthogonal frequency division multiplex OFDM symbol of different target mapping subbands carries
Wave re-maps different OFDM symbols.
Alternatively, the subcarrier of each OFDM symbol of same target mapping subband can first be mapped, different targets is re-mapped
Map subband.
Multi-subband down control channel sending method provided in an embodiment of the present invention, by according to reported by user equipment UE
Down channel quality determines the corresponding physical downlink control channel PDCCH polymerization grade of the UE；According to the corresponding institute of the UE
State PDCCH polymerization grade, choose N number of target mapping subband, N is corresponding with the PDCCH polymerization grade, value for more than or equal to
1 integer；PDCCH modulated signal progress physical resource to be sent corresponding to the UE reflects in target mapping subband
It penetrates.In this way, without repeating to send PDCCH modulated signal in multiple downlink frames, while realizing the effective use of downlink resource,
Reduce service delay.
Further, on the basis of the above embodiments, the multi-subband downlink that further embodiment of this invention provides controls letter
In road sending method, the down channel quality according to reported by user equipment UE determines the corresponding physical down control of the UE
Channel PDCCH polymerization grade processed, comprising:
According to the polymerization grade threshold value of setting and the down channel quality, determine that the corresponding candidate PDCCH of the UE is poly-
Close grade；
If candidate's PDCCH polymerization grade is less than or equal to the multi-subband ability rating of the UE, it is determined that the time
Selecting PDCCH polymerization grade is the corresponding PDCCH polymerization grade of the UE；
If candidate's PDCCH polymerization grade is higher than the multi-subband ability rating of the UE, it is determined that the UE's is mostly sub
Band ability rating is the corresponding PDCCH polymerization grade of the UE.
Consider different UE there are corresponding multi-subband ability rating, for ensure UE can normal blind examination to one's name
DCI, in the embodiment of the present invention, the down channel quality and the corresponding multi-subband ability rating of UE that UE is reported can be comprehensively considered
To determine the corresponding PDCCH polymerization grade of UE.
It specifically, can be according to the comparison for the down channel quality and pre-set multiple polymerization grade threshold values that UE is reported
As a result the corresponding candidate's PDCCH polymerization grade of UE is determined.
For example, candidate's PDCCH polymerization grade is 1 if down channel quality is greater than or equal to the first polymerization grade threshold value；
If down channel quality is less than the first polymerization grade threshold value and is greater than or equal to the second polymerization grade threshold value, candidate PDCCH is poly-
Closing grade is 2；If down channel quality is less than the second polymerization grade threshold value and is greater than or equal to third polymerization grade threshold, wait
Selecting PDCCH polymerization grade is 3；If down channel quality is less than third polymerization grade threshold and is greater than or equal to the 4th polymerization grade
Threshold value, then candidate's PDCCH polymerization grade is 4；If down channel quality is less than the 4th polymerization grade threshold value and is greater than or equal to the
Five polymerization grade threshold values, then candidate's PDCCH polymerization grade is 5 ... ....
Alternatively, candidate's PDCCH polymerization grade is 1 if down channel quality is greater than or equal to the first polymerization grade threshold value；
If down channel quality is less than the first polymerization grade threshold value and is greater than or equal to the second polymerization grade threshold value, candidate PDCCH is poly-
Closing grade is 2；If down channel quality is less than the second polymerization grade threshold value and is greater than or equal to third polymerization grade threshold, wait
Selecting PDCCH polymerization grade is 4；If down channel quality is less than third polymerization grade threshold and is greater than or equal to the 4th polymerization grade
Threshold value, then candidate's PDCCH polymerization grade is 8；If down channel quality is less than the 4th polymerization grade threshold value and is greater than or equal to the
Five polymerization grade threshold values, then candidate's PDCCH polymerization grade is 16 ... ....
Then, the candidate PDCCH polymerization grade determined is compared with the multi-subband ability rating of UE, according to comparison
As a result the corresponding PDCCH polymerization grade of UE is determined.
It specifically, can be true if candidate's PDCCH polymerization grade is less than or equal to the multi-subband ability rating of the UE
Fixed candidate's PDCCH polymerization grade is the corresponding PDCCH polymerization grade of the UE.
If candidate's PDCCH polymerization grade is higher than the multi-subband ability rating of the UE, it can determine that the UE's is more
Subband ability rating is the corresponding PDCCH polymerization grade of the UE.
Other steps of the embodiment of the present invention are similar to previous embodiment step, and the embodiment of the present invention repeats no more.
Multi-subband down control channel sending method provided in an embodiment of the present invention introduces the multi-subband ability rating of UE,
Can ensure UE can normal blind examination to one's own DCI.
Further, on the basis of the above embodiments, the multi-subband downlink that further embodiment of this invention provides controls letter
In road sending method, if candidate's PDCCH polymerization grade is higher than the multi-subband ability rating of the UE, the method is also wrapped
It includes:
According to the multi-subband ability rating of the UE and candidate's PDCCH polymerization grade, time domain number of repetition M is determined.
Correspondingly, it is described the target mapping subband in PDCCH modulated signal to be sent corresponding to the UE into
The mapping of row physical resource, comprising:
Subband is mapped according to the target, PDCCH modulation to be sent corresponding to the UE is repeated in M downlink frame
Signal carries out physical resource mapping.
It is higher than the multi-subband ability etc. of UE in the candidate PDCCH polymerization grade determined based on the corresponding down channel quality of UE
In the case where grade, illustrate that UE multi-subband ability is limited.
In the embodiment of the present invention, in UE multi-subband ability by limited time, base station can choose sacrifice delay performance, pass through time domain
The basic performance of guarantee PDCCH is repeated, meets covering and requires.
Specifically, time domain can be determined according to the multi-subband ability rating and candidate's PDCCH polymerization grade of the UE
Number of repetition M.Then, can choose M downlink frame for repeat send the corresponding PDCCH modulation to be sent of the UE and believe
Number.
It, can be according to the difference between the multi-subband ability rating and candidate's PDCCH polymerization grade of UE in practical application
Value determines time domain number of repetition M, and difference is bigger, and M is bigger.
Other steps of the embodiment of the present invention are similar to previous embodiment step, and the embodiment of the present invention repeats no more.
Multi-subband down control channel sending method provided in an embodiment of the present invention, is repeated by time domain, can be ensured in UE
Multi-subband ability is required by system covering is met in limited time.
Further, on the basis of the above embodiments, the multi-subband downlink that further embodiment of this invention provides controls letter
In road sending method, the multi-subband ability rating and candidate's PDCCH polymerization grade according to the UE determines time domain weight
Again after counting M, the method also includes:
Tissue cycle length is repeated according to preset time domain, chooses M downlink frame to send the PDCCH modulation letter
Number.
In the embodiment of the present invention, can be sent with the repetition of PDCCH modulated signal in the time domain can be according to preset time domain
It repeats tissue period Cycle and carries out tissue.In practical application, for a UE, the corresponding DCI of the UE of each Cycle transmission
It is identical, but scrambling code is different.
Wherein, time domain repetition tissue cycle length is rule of thumb configured by those skilled in the art, for example, with one
Downlink frame is a Cycle, sets time domain for the length of a downlink frame and repeats tissue cycle length；Alternatively, can be with more
A downlink frame is a Cycle, sets time domain for the length summation of multiple downlink frames and repeats tissue cycle length.
For example, being a Cycle, with PDCCH polymerization grade is 4, time domain number of repetition is 2 feelings with a downlink frame
Under condition, Cycle length is 1 downlink frame length, can be in the subband 1 in l-th downlink frame and the L+1 downlink frame to subband
The mapping of PDCCH modulated signal is carried out in 4, as shown in Figure 5.
In the case where being a Cycle with a downlink frame, being 8 with PDCCH polymerization grade, time domain number of repetition is 2,
Cycle length is 1 downlink frame, can be carried out in the subband 1 in l-th downlink frame and the L+1 downlink frame into subband 8
The mapping of PDCCH modulated signal, as shown in Figure 6.
Other steps of the embodiment of the present invention are similar to previous embodiment step, and the embodiment of the present invention repeats no more.
Multi-subband down control channel sending method provided in an embodiment of the present invention, by carrying out time domain weight according to Cycle
It is multiple, can convenient for UE rapidly and accurately blind examination to one's own DCI.
Further, on the basis of the above embodiments, the multi-subband downlink that further embodiment of this invention provides controls letter
In road sending method, PDCCH modulated signal to be sent corresponding to the UE carries out physics in target mapping subband
After resource impact, the method also includes:
Institute is mapped in the subband adjacent with target mapping subband in the downlink frame for mapping the PDCCH modulated signal
State the corresponding Physical Downlink Shared Channel PDSCH modulated signal to be sent of UE.
It, can be in the corresponding PDCCH of mapping UE in order to realize the transmission at same frame of PDCCH and PDSCH in the embodiment of the present invention
Several subbands adjacent with target mapping subband are chosen in the downlink frame of modulated signal；And to UE in the subband of selection
Corresponding PDSCH modulated signal carries out physical resource mapping, as shown in Figure 7.Wherein, PDSCH modulated signal is the industry based on UE
Business information and obtain.
Other steps of the embodiment of the present invention are similar to previous embodiment step, and the embodiment of the present invention repeats no more.
Multi-subband down control channel sending method provided in an embodiment of the present invention passes through the hair at same frame of PDCCH and PDSCH
It send, service delay can be reduced, base station is allowed to support low time delay business.
Further, on the basis of the above embodiments, the multi-subband downlink that further embodiment of this invention provides controls letter
It include being used to indicate the subband position occupied for the PDSCH of UE distribution in road sending method, in the PDCCH modulated signal
Instruction information；
Correspondingly, PDCCH modulated signal to be sent corresponding to the UE carries out object in target mapping subband
After managing resource impact, the method also includes:
The corresponding subband of subband position of instruction information instruction described in the downlink frame for mapping the PDCCH modulated signal
It is middle to map the corresponding PDSCH modulated signal to be sent of the UE.
It include being used to indicate the son occupied for the PDSCH of UE distribution in the embodiment of the present invention, in PDCCH modulated signal
Instruction information with position, in this way, UE can get the position of PDSCH after having demodulated PDCCH.
It, can be according to the instruction for including in the PDCCH modulated signal in order to realize the transmission at same frame of PDCCH and PDSCH
It is the subband position that the PDSCH of UE distribution is occupied indicated by information, in the downlink frame of the corresponding PDCCH modulated signal of mapping UE
In corresponding position in select subband for mapping PDSCH modulated signal；Then, corresponding to UE in the subband of selection
PDSCH modulated signal carries out physical resource mapping.
Other steps of the embodiment of the present invention are similar to previous embodiment step, and the embodiment of the present invention repeats no more.
Multi-subband down control channel sending method provided in an embodiment of the present invention is designated as the UE by setting and distributes
PDSCH occupy subband position instruction information, reduce service delay while, it can be achieved that downlink resource flexible configuration.
On the basis of the above embodiments, further embodiment of this invention provides a kind of base station.
With reference to Fig. 8, it illustrates the structural schematic diagrams of base station according to an embodiment of the invention.
As shown in figure 8, base station 800 provided in an embodiment of the present invention may include: polymerization grade determination unit 801, mapping
Subband selection unit 802 and physical resource map unit 803.
Wherein, polymerization grade determination unit 801 is used for according to the down channel quality of reported by user equipment UE, determine described in
The corresponding physical downlink control channel PDCCH polymerization grade of UE；
Subband selection unit 802 is mapped to be used to choose N number of target according to the corresponding PDCCH polymerization grade of the UE
Subband is mapped, N is corresponding with the PDCCH polymerization grade, and value is the integer more than or equal to 1；
Physical resource map unit 803 is used for corresponding to the UE to be sent in target mapping subband
PDCCH modulated signal carries out physical resource mapping.
Optionally, polymerization grade determination unit 801 is also used to polymerization grade threshold value and the down channel according to setting
Quality determines the corresponding candidate's PDCCH polymerization grade of the UE；If candidate's PDCCH polymerization grade is less than or equal to described
The multi-subband ability rating of UE, it is determined that candidate's PDCCH polymerization grade is the corresponding PDCCH polymerization grade of the UE；If
Candidate's PDCCH polymerization grade is higher than the multi-subband ability rating of the UE, it is determined that the multi-subband ability rating of the UE
For the corresponding PDCCH polymerization grade of the UE.
Optionally, if physical resource map unit 803 is also used to candidate's PDCCH polymerization grade and is higher than the more of the UE
Subband ability rating determines that time domain repeats then according to the multi-subband ability rating of the UE and candidate's PDCCH polymerization grade
Number M；Subband is mapped according to the target, to be sent PDCCH corresponding to the UE is repeated in M downlink frame and modulates letter
Number carry out physical resource mapping.
Optionally, physical resource map unit 803 is also used to repeat tissue cycle length according to preset time domain, chooses M
A downlink frame is to send the PDCCH modulated signal.
Optionally, physical resource map unit 803 is also used in the downlink frame for mapping the PDCCH modulated signal and institute
It states and maps the corresponding Physical Downlink Shared Channel PDSCH modulation letter to be sent of the UE in the adjacent subband of target mapping subband
Number.
It optionally, include being used to indicate the subband position occupied for the PDSCH of UE distribution in the PDCCH modulated signal
The instruction information set.
Correspondingly, physical resource map unit 803 is also used to described in the downlink frame for mapping the PDCCH modulated signal
It indicates to map the corresponding PDSCH modulated signal to be sent of the UE in the corresponding subband of subband position of information instruction.
Optionally, physical resource map unit 803 is specifically used for first mapping the identical orthogonal of different target mapping subbands
The subcarrier of frequency division multiplex OFDM symbol re-maps different OFDM symbols；Alternatively, first mapping each of same target mapping subband
The subcarrier of OFDM symbol re-maps different target mapping subbands.
Base station provided in an embodiment of the present invention, by the down channel quality according to reported by user equipment UE, determine described in
The corresponding physical downlink control channel PDCCH polymerization grade of UE；According to the corresponding PDCCH polymerization grade of the UE, N is chosen
A target maps subband, and N is corresponding with the PDCCH polymerization grade, and value is the integer more than or equal to 1；It is reflected in the target
It penetrates PDCCH modulated signal to be sent corresponding to the UE in subband and carries out physical resource mapping.In this way, without under multiple
Row frame repeats to send PDCCH modulated signal, while realizing the effective use of downlink resource, reduces service delay.
The embodiment of base station provided by the invention specifically can be used for executing the process flow of above method embodiment, function
Details are not described herein for energy, is referred to the detailed description of above method embodiment.
With reference to Fig. 9, it illustrates the entity structure schematic diagrames of electronic equipment according to an embodiment of the invention.Such as Fig. 9
Shown, which may include: processor (processor) 901, memory (memory) 902 and bus 903,
In, processor 901, memory 902 completes mutual communication by bus 903.Processor 901 can call memory 902
In computer program, to execute method provided by above-mentioned each method embodiment, for example,
According to the down channel quality of reported by user equipment UE, the corresponding Physical Downlink Control Channel of the UE is determined
PDCCH polymerization grade；
According to the corresponding PDCCH polymerization grade of the UE, N number of target mapping subband is chosen, N and the PDCCH are poly-
It closes grade to correspond to, value is the integer more than or equal to 1；
PDCCH modulated signal progress physical resource to be sent corresponding to the UE reflects in target mapping subband
It penetrates.
In another embodiment, following method is realized when the processor 901 executes the computer program: described
According to the down channel quality of reported by user equipment UE, corresponding physical downlink control channel PDCCH polymerization of the UE etc. is determined
Grade, comprising:
According to the polymerization grade threshold value of setting and the down channel quality, determine that the corresponding candidate PDCCH of the UE is poly-
Close grade；
If candidate's PDCCH polymerization grade is less than or equal to the multi-subband ability rating of the UE, it is determined that the time
Selecting PDCCH polymerization grade is the corresponding PDCCH polymerization grade of the UE；
If candidate's PDCCH polymerization grade is higher than the multi-subband ability rating of the UE, it is determined that the UE's is mostly sub
Band ability rating is the corresponding PDCCH polymerization grade of the UE.
In another embodiment, following method is realized when the processor 901 executes the computer program: if institute
State candidate PDCCH polymerization grade be higher than the UE multi-subband ability rating, then the method also includes:
According to the multi-subband ability rating of the UE and candidate's PDCCH polymerization grade, time domain number of repetition M is determined；
Correspondingly, it is described the target mapping subband in PDCCH modulated signal to be sent corresponding to the UE into
The mapping of row physical resource, comprising:
Subband is mapped according to the target, PDCCH modulation to be sent corresponding to the UE is repeated in M downlink frame
Signal carries out physical resource mapping.
In another embodiment, following method is realized when the processor 901 executes the computer program: described
It is described after determining time domain number of repetition M according to the multi-subband ability rating of the UE and candidate's PDCCH polymerization grade
Method further include:
Tissue cycle length is repeated according to preset time domain, chooses M downlink frame to send the PDCCH modulation letter
Number.
In another embodiment, following method is realized when the processor 901 executes the computer program: described
After PDCCH modulated signal to be sent corresponding to the UE carries out physical resource mapping in target mapping subband,
The method also includes:
Institute is mapped in the subband adjacent with target mapping subband in the downlink frame for mapping the PDCCH modulated signal
State the corresponding Physical Downlink Shared Channel PDSCH modulated signal to be sent of UE.
In another embodiment, following method is realized when the processor 901 executes the computer program: described
It include the instruction information being used to indicate as the PDSCH of the UE distribution subband position occupied in PDCCH modulated signal；
Correspondingly, PDCCH modulated signal to be sent corresponding to the UE carries out object in target mapping subband
After managing resource impact, the method also includes:
The corresponding subband of subband position of instruction information instruction described in the downlink frame for mapping the PDCCH modulated signal
It is middle to map the corresponding PDSCH modulated signal to be sent of the UE.
In another embodiment, following method is realized when the processor 901 executes the computer program: described
PDCCH modulated signal to be sent corresponding to the UE carries out physical resource mapping in target mapping subband, comprising:
The subcarrier for first mapping the identical orthogonal frequency division multiplex OFDM symbol of different target mapping subbands, re-maps difference
OFDM symbol；
Alternatively, first mapping the subcarrier of each OFDM symbol of same target mapping subband, different target mappings is re-mapped
Subband.
Electronic equipment 900 provided in an embodiment of the present invention, at least has following technical effect that
By the down channel quality according to reported by user equipment UE, the corresponding Physical Downlink Control Channel of the UE is determined
PDCCH polymerization grade；According to the corresponding PDCCH polymerization grade of the UE, choose N number of target mapping subband, N with it is described
PDCCH polymerization grade is corresponding, and value is the integer more than or equal to 1；It is corresponding to the UE in target mapping subband
PDCCH modulated signal to be sent carries out physical resource mapping.In this way, without repeating to send PDCCH modulation in multiple downlink frames
Signal reduces service delay while realizing the effective use of downlink resource.
The embodiment of the present invention discloses a kind of computer program product, and the computer program product is non-transient including being stored in
Computer program on computer readable storage medium, the computer program include program instruction, when described program instructs quilt
When computer executes, computer is able to carry out method provided by above-mentioned each method embodiment, for example,
According to the down channel quality of reported by user equipment UE, the corresponding Physical Downlink Control Channel of the UE is determined
PDCCH polymerization grade；According to the corresponding PDCCH polymerization grade of the UE, choose N number of target mapping subband, N with it is described
PDCCH polymerization grade is corresponding, and value is the integer more than or equal to 1；It is corresponding to the UE in target mapping subband
PDCCH modulated signal to be sent carries out physical resource mapping.
Correspondingly, the embodiment of the present invention provides a kind of non-transient computer readable storage medium, the non-transient computer
Readable storage medium storing program for executing stores computer program, and the computer program proposes the above-mentioned each method embodiment of the computer execution
The method of confession, for example,
According to the down channel quality of reported by user equipment UE, the corresponding Physical Downlink Control Channel of the UE is determined
PDCCH polymerization grade；According to the corresponding PDCCH polymerization grade of the UE, choose N number of target mapping subband, N with it is described
PDCCH polymerization grade is corresponding, and value is the integer more than or equal to 1；It is corresponding to the UE in target mapping subband
PDCCH modulated signal to be sent carries out physical resource mapping.
In addition, the logical order in above-mentioned memory can be realized and as independence by way of SFU software functional unit
Product when selling or using, can store in a computer readable storage medium.Based on this understanding, of the invention
Technical solution substantially the part of the part that contributes to existing technology or the technical solution can be with software in other words
The form of product embodies, which is stored in a storage medium, including some instructions use so that
One computer installation (can be personal computer, server or network equipment etc.) executes each embodiment institute of the present invention
State all or part of the steps of method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-
Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can be with
Store the medium of program code.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer installation (can be personal computer, server or network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of multi-subband down control channel sending method characterized by comprising
According to the down channel quality of reported by user equipment UE, determine that the corresponding physical downlink control channel PDCCH of the UE is poly-
Close grade；
According to the corresponding PDCCH polymerization grade of the UE, N number of target mapping subband is chosen, N polymerize with the PDCCH
Grade is corresponding, and value is the integer more than or equal to 1；
PDCCH modulated signal to be sent corresponding to the UE carries out physical resource mapping in target mapping subband.
2. the method according to claim 1, wherein the down channel matter according to reported by user equipment UE
Amount, determines the corresponding physical downlink control channel PDCCH polymerization grade of the UE, comprising:
According to the polymerization grade threshold value of setting and the down channel quality, corresponding candidate PDCCH polymerization of the UE etc. is determined
Grade；
If candidate's PDCCH polymerization grade is less than or equal to the multi-subband ability rating of the UE, it is determined that the candidate
PDCCH polymerization grade is the corresponding PDCCH polymerization grade of the UE；
If candidate's PDCCH polymerization grade is higher than the multi-subband ability rating of the UE, it is determined that the multi-subband energy of the UE
Power grade is the corresponding PDCCH polymerization grade of the UE.
3. according to the method described in claim 2, it is characterized in that, if candidate's PDCCH polymerization grade is higher than the UE's
Multi-subband ability rating, then the method also includes:
According to the multi-subband ability rating of the UE and candidate's PDCCH polymerization grade, time domain number of repetition M is determined；
Correspondingly, the PDCCH modulated signal to be sent corresponding to the UE in target mapping subband carries out object
Manage resource impact, comprising:
Subband is mapped according to the target, PDCCH modulated signal to be sent corresponding to the UE is repeated in M downlink frame
Carry out physical resource mapping.
4. according to the method described in claim 3, it is characterized in that, the multi-subband ability rating according to the UE and described
Candidate PDCCH polymerization grade, after determining time domain number of repetition M, the method also includes:
Tissue cycle length is repeated according to preset time domain, chooses M downlink frame to send the PDCCH modulated signal.
5. the method according to claim 1, wherein described corresponding to the UE in target mapping subband
PDCCH modulated signal to be sent carry out physical resource mapping after, the method also includes:
The UE is mapped in the subband adjacent with target mapping subband in the downlink frame for mapping the PDCCH modulated signal
Corresponding Physical Downlink Shared Channel PDSCH modulated signal to be sent.
6. the method according to claim 1, wherein including being used to indicate as institute in the PDCCH modulated signal
State the instruction information of the subband position of the PDSCH occupancy of UE distribution；
Correspondingly, PDCCH modulated signal to be sent corresponding to the UE carries out physics money in target mapping subband
After the mapping of source, the method also includes:
It is reflected in the corresponding subband of subband position of instruction information instruction described in the downlink frame for mapping the PDCCH modulated signal
Penetrate the corresponding PDSCH modulated signal to be sent of the UE.
7. -6 any method according to claim 1, which is characterized in that described to map in subband in the target to described
The corresponding PDCCH modulated signal to be sent of UE carries out physical resource mapping, comprising:
The subcarrier for first mapping the identical orthogonal frequency division multiplex OFDM symbol of different target mapping subbands, re-maps different
OFDM symbol；
Alternatively,
The subcarrier for first mapping each OFDM symbol of same target mapping subband re-maps different target mapping subbands.
8. a kind of base station characterized by comprising
Polymerization grade determination unit determines the corresponding object of the UE for the down channel quality according to reported by user equipment UE
Manage down control channel PDCCH polymerization grade；
Subband selection unit is mapped, for choosing N number of target mapping according to the corresponding PDCCH polymerization grade of the UE
Band, N is corresponding with the PDCCH polymerization grade, and value is the integer more than or equal to 1；
Physical resource map unit, for PDCCH modulation to be sent corresponding to the UE in target mapping subband
Signal carries out physical resource mapping.
9. a kind of electronic equipment, which is characterized in that including processor, memory and bus, in which:
The processor, the memory complete mutual communication by bus；
The processor can call the computer program in memory, to execute as described in claim 1-7 any one
The step of method.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
It realizes when execution such as the step of claim 1-7 any one the method.
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