CN104125645B - A kind of control channel unit polymerization grade determines method and device - Google Patents
A kind of control channel unit polymerization grade determines method and device Download PDFInfo
- Publication number
- CN104125645B CN104125645B CN201410344617.5A CN201410344617A CN104125645B CN 104125645 B CN104125645 B CN 104125645B CN 201410344617 A CN201410344617 A CN 201410344617A CN 104125645 B CN104125645 B CN 104125645B
- Authority
- CN
- China
- Prior art keywords
- pdcch
- cce
- spectrum efficiency
- add
- grades
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of CCE polymerization grades to determine method and device, to avoid the performance by PDCCH and PDSCH from being bound, ensures the capacity of lifting PDCCH on the basis of PDCCH performances.Methods described, including：In each channel quality indicator (CQI) report cycle pre-set, according to different multiple-input, multiple-output MIMO transmission modes, physical down link sharing channel PDSCH spectrum efficiency is modified, obtains equivalent PDCCH spectrum efficiency；According to the spectrum efficiency of the equivalent PDCCH, CCE initial value is determined；Judge to whether there is missing inspection using UE after current CCE polymerization grades, and this adjustment PDCCH CCE grades are determined according to judged result；According to this adjustment PDCCH CCE grades, and CCE initial value, currently employed CCE polymerization grades are redefined.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of control channel unit (Control Channel
Element, CCE) polymerization grade determines method and device.
Background technology
Long Term Evolution (Long Term Evolution, LTE) or senior long term evolution (Long Term Evolution
Advanced, LTE-A) system using Physical Downlink Control Channel (Physical Downlink Control Channel,
PDCCH up-downgoing schedule information) is carried, PDCCH performance can use control channel unit (Control Channel
Element, CCE) polymerization grade size (CCE=1,2,4,8) weighs, and CCE polymerization grades are higher, PDCCH performance is better,
False dismissal probability is lower, but the resource for taking control channel is more, user equipment that system can carry (User Equipment,
UE) number is fewer, and CCE polymerization grades are lower, and PDCCH performance is poorer, false dismissal probability can be caused to increase, once control information occurs
Missing inspection, the then transmission of this business datum also just make a mistake, and reduce UE throughput performance.
LTE PDCCH bearing downlinks control information (Downlink Control Information, DCI), including for
Schedule information and uplink power control information of downlink and uplink data transfer etc., specific DCI format and purposes are as following
Shown in table one.By the way of more UE shared resources, UE needs to control according to certain rule search in whole control area PDCCH
Signaling.By by UE Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Cell Radio Network in PDCCH DCI information
Temporary Identity, C-RNTI) scramble to 16 bits (bit) CRC (Cyclic Redundancy
Check, CRC) mode, the target UE that the implicit instruction DCI is sent.In order to support link circuit self-adapting, UE detections PDCCH is reduced
Complexity, PDCCH resource map in units of CCE, a CCE is by 9 resource unit group (Resource Element
Group, REG) it is that 36 resource units (Resource Element, RE) are formed.According to the length and UE for carrying DCI bits
Link-quality, base station can select to carry a DCI, referred to as CCE polymerization grades using 1,2,4 or 8 CCE.
Table one：DCI format and purposes
Descending PDCCH points of LTE is cell-level PDCCH and UE level PDCCH.The former carries the control information of cell-level, mapping
To public search space, public search space is all UE shared, supports CCE polymerization grades 4 or 8；The latter carries UE levels
Control information, PDCCH CRC by UE C-RNTI or descending semi-continuous schedulings (Semi-Persistent Scheduling,
SPS) C-RNTI is scrambled, and is mapped to the exclusive search spaces of UE, and the exclusive search spaces of UE are for each UE, comprising being possible to
CCE polymerization grades.The exclusive search space original positions of UE are determined by subframe number and terminal RNTI etc. under a kind of CCE polymerization grades
It is fixed.Due to the difference of carrying information content, mainly to meet MPS process as target when cell-level PDCCH resource is distributed, UE levels
PDCCH resource is distributed mainly using capacity as target, and on the premise of performance requirement is met, the CQI that base station is fed back according to UE is come really
Determine the CCE sizes of UE levels PDCCH occupancy and the size of power, support more UE as far as possible.
Existing implementation includes：
Step 1:According to different MIMO transmission modes, to PDSCH spectrum efficiency effPDSCHIt is modified, obtains
Spectrum efficiency eff under the PDCCH of effectPDCCH；
Because evolved base station (evolved Node B, eNB) can only indicate (Channel according to PDSCH channel quality
Quality Indicator, CQI) carry out the preliminary link-quality for judging UE, and PDSCH CQI depends on current multiple-input, multiple-output
(Most In Most Out, MIMO) transmission means.And MIMO method is possible to different used by PDSCH and PDCCH, because
This needs to be modified PDSCH spectrum efficiency, so as to obtain the equivalent spectrum efficiency to PDCCH.Therefore have：
effPDCCH=effPDSCH+Δ
Parameter declaration is as follows：
effPDSCH：The spectrum efficiency that PDSCH is instantaneously corrected；
effPDCCH：The spectrum efficiency of PDCCH instantaneous reconstructions；
Δ：The adjusted value of PDCCH spectrum efficiencies is obtained by different MIMO method amendments according to PDSCH spectrum efficiency；
Δ value depends on different MIMO methods, when PDSCH MIMO method is space frequency block coding (Space-
Frequency Block Codes, SFBC) when, Δ=0, when PDSCH MIMO method is single current wave beam forming, Δ is negative
Value, when PDSCH is the MIMO method of Open-Loop Spatial Multiplexing or dual-stream beamforming, Δ be on the occasion of.
Step 2:According to the spectrum efficiency of PDCCH after amendment, with reference to following table two, i.e. spectrum efficiency is closed with CCE mappings
It is table, carries out the selection of CCE sizes.
Table two：Spectrum efficiency and CCE mapping tables
| CCE sizes | Spectrum efficiency |
| 1 | CQI10 |
| 2 | CQI8 |
| 4 | CQI6 |
If effPDCCH>=CCE1 thresholding, then CCE number is 1；
If effPDCCH>=CCE2 thresholding, then CCE number is 2；
If effPDCCH>=CCE4 thresholding, then CCE number is 4；
Wherein, CCE1, CCE2, CCE4 represent 1 CCE, 2 CCE and 4 CCE respectively, in the case of other, then CCE number
For 8.
In summary, prior art is primarily present both sides shortcoming：First, by PDCCH performance and PDSCH performance
Bound, and using the instantaneous performances of PDSCH select PDCCH CCE grades, if the MCS grades that PDSCH is instantaneously selected
It is improper, re-transmission can be obtained and merge gain, but missing inspection once occurs for PDCCH, then can waste the resource of this time transmission；Second,
CCE initial selected does not differentiate between PDCCH DCI lengths, and the CCE of selection can be caused to be limited, and wastes PDCCH resource.
The content of the invention
The embodiments of the invention provide a kind of CCE polymerization grades to determine method and device, avoiding PDCCH and
PDSCH performance is bound, and ensures the capacity of lifting PDCCH on the basis of PDCCH performances.
A kind of CCE polymerization grades provided in an embodiment of the present invention determine that method includes：
In each channel quality indicator (CQI) report cycle pre-set, according to different multiple-input, multiple-output MIMO transmission sides
Formula, physical down link sharing channel PDSCH spectrum efficiency is modified, obtains equivalent PDCCH spectrum efficiency；
According to the spectrum efficiency of the equivalent PDCCH, CCE initial value is determined；
Judge to whether there is missing inspection using UE after current CCE polymerization grades, and this adjustment is determined according to judged result
PDCCH CCE grades；
According to this adjustment PDCCH CCE grades, and CCE initial value, redefine currently employed CCE and gather
Close grade.
With it, determine which CCE PDCCH should use polymerize actually according to statistics PDCCH false dismissal probability
Grade, no longer PDCCH and PDSCH performance are bound, adaptively according to channel quality information and PDCCH itself inspection
Performance is surveyed to select suitable CCE sizes, considers power system capacity and UE throughput performance, is ensureing PDCCH performances
On the basis of rationally lifting PDCCH capacity.
It is preferred that being modified using following equation to PDSCH spectrum efficiency, equivalent PDCCH frequency spectrum effect is obtained
Rate：
effPDCCH=effPDSCH+Δ
Wherein, effPDCCHRepresent the spectrum efficiency of the equivalent PDCCH, effPDSCHPDSCH spectrum efficiency is represented,
Δ represents to obtain the adjustment of PDCCH spectrum efficiency by different MIMO transmission mode amendments according to PDSCH spectrum efficiency
Value, when PDSCH MIMO transmission mode is SFBC, Δ=0, when PDSCH MIMO transmission mode is single current wave beam forming,
Δ is negative value, when PDSCH is the MIMO transmission mode of Open-Loop Spatial Multiplexing or dual-stream beamforming, Δ be on the occasion of.
It is preferred that according to the spectrum efficiency of the equivalent PDCCH, CCE initial value is determined, including：
Smooth PDCCH after obtaining smoothly spectrum efficiency is carried out to the spectrum efficiency of the equivalent PDCCH；
According to it is described it is smooth after PDCCH spectrum efficiency, determine CCE initial value.
It is smooth by being carried out to PDSCH spectral efficiency values, avoid single shake from causing PDCCH false dismissal probability to increase.
It is preferred that the spectrum efficiency of the equivalent PDCCH is carried out smoothly using following equation, after obtaining smoothly
PDCCH spectrum efficiency effPDCCH_new；
effPDCCH_new(i)=(1- α) effPDCCH_new(i-1)+α·effPDCCH
Wherein, i represents current CQI report cycles point, and α represents default smoothing factor, effPDCCHRepresent described equivalent
PDCCH spectrum efficiency.
It is preferred that according to it is described it is smooth after PDCCH spectrum efficiency, determine CCE initial value, including：
According to it is described it is smooth after PDCCH spectrum efficiency and Downlink Control Information DCI length, with reference to it is default should
The spectrum efficiency of PDCCH under DCI length and the mapping table of the initial values of CCE, determine CCE initial value.
The threshold value of different CCE and spectrum efficiency is set for the DCI of different length, passes through parameter Vadd_sumTo embody
PDSCH and PDCCH performance difference, make the CCE of selection more reasonable, the effectively lifting PDCCH on the basis of PDCCH performances are ensured
Capacity.
It is preferred that judging to whether there is missing inspection using UE after current CCE polymerization grades, and this is determined according to judged result
Secondary adjustment PDCCH CCE grades, including：
Judge to whether there is missing inspection using UE after current CCE polymerization grades, if it is, Vadd=-Kstep, it is no
Then, Vadd=step；
Wherein, VaddThis adjustment PDCCH CCE grades are represented, K represents the PDCCH's that default intoo drastic biopsy is surveyed
The ratio of the CCE level adjustment step-lengths for the PDCCH that CCE level adjustments step-length is surveyed with too drastic biopsy, step represent default PDCCH
After too drastic biopsy is surveyed, CCE level adjustments step-length corresponding to the PDCCH.
It is preferred that using following equation, according to this adjustment PDCCH CCE grades, and CCE initial value, again
Currently employed CCE polymerization grades are determined, including：
Vadd_sum=Vadd_sum+Vadd
Redefine currently employed CCE polymerization grades=floor (CCEinit+Vadd_sum)
Wherein, VaddThis adjustment PDCCH CCE grades are represented, floor () represents to round downwards, CCEinitRepresent CCE
Initial value.
It is preferred that
If floor (CCEinit+Vadd_sum) being equal to 1, then the currently employed CCE polymerization grades redefined are 1；
If floor (CCEinit+Vadd_sum) being equal to 2, then the currently employed CCE polymerization grades redefined are 2；
If floor (CCEinit+Vadd_sum) being equal to 3, then the currently employed CCE polymerization grades redefined are 4；
If floor (CCEinit+Vadd_sum) being equal to 4, then the currently employed CCE polymerization grades redefined are 8.
A kind of control channel unit CCE polymerization grade determining devices provided in an embodiment of the present invention, including：
Equivalent unit, in each channel quality indicator (CQI) report cycle pre-set, according to it is different enter it is more
Go out MIMO transmission mode, physical down link sharing channel PDSCH spectrum efficiency is modified, obtain equivalent PDCCH
Spectrum efficiency；
CCE initial value determining units, for the spectrum efficiency according to the equivalent PDCCH, determine that the initial of CCE takes
Value；
Judging unit, for judging to whether there is missing inspection using UE after current CCE polymerization grades, and according to judged result
Determine this adjustment PDCCH CCE grades；
Determining unit, for the CCE grades according to this adjustment PDCCH, and CCE initial value, redefine and work as
The CCE polymerization grades of preceding use.
By the device, determine which CCE PDCCH should use polymerize actually according to statistics PDCCH false dismissal probability
Grade, no longer PDCCH and PDSCH performance are bound, adaptively according to channel quality information and PDCCH itself inspection
Performance is surveyed to select suitable CCE sizes, considers power system capacity and UE throughput performance, is ensureing PDCCH performances
On the basis of rationally lifting PDCCH capacity.
It is preferred that the equivalent unit is modified using following equation to PDSCH spectrum efficiency, obtain equivalent
PDCCH spectrum efficiency：
effPDCCH=effPDSCH+Δ
Wherein, effPDCCHRepresent the spectrum efficiency of the equivalent PDCCH, effPDSCHPDSCH spectrum efficiency is represented,
Δ represents to obtain the adjustment of PDCCH spectrum efficiency by different MIMO transmission mode amendments according to PDSCH spectrum efficiency
Value, when PDSCH MIMO transmission mode is SFBC, Δ=0, when PDSCH MIMO transmission mode is single current wave beam forming,
Δ is negative value, when PDSCH is the MIMO transmission mode of Open-Loop Spatial Multiplexing or dual-stream beamforming, Δ be on the occasion of.
It is preferred that the CCE initial values determining unit is specifically used for：
Smooth PDCCH after obtaining smoothly spectrum efficiency is carried out to the spectrum efficiency of the equivalent PDCCH；
According to it is described it is smooth after PDCCH spectrum efficiency, determine CCE initial value.
It is smooth by being carried out to PDSCH spectral efficiency values, avoid single shake from causing PDCCH false dismissal probability to increase.
It is preferred that the CCE initial values determining unit is entered using following equation to the spectrum efficiency of the equivalent PDCCH
Row is smooth, the spectrum efficiency eff of the PDCCH after obtaining smoothlyPDCCH_new；
effPDCCH_new(i)=(1- α) effPDCCH_new(i-1)+α·effPDCCH
Wherein, i represents current CQI report cycles point, and α represents default smoothing factor, effPDCCHRepresent described equivalent
PDCCH spectrum efficiency.
It is preferred that the CCE initial values determining unit according to it is described it is smooth after PDCCH spectrum efficiency, determine CCE's
During initial value, it is specifically used for：
According to it is described it is smooth after PDCCH spectrum efficiency and Downlink Control Information DCI length, with reference to it is default should
The spectrum efficiency of PDCCH under DCI length and the mapping table of the initial values of CCE, determine CCE initial value.
The threshold value of different CCE and spectrum efficiency is set for the DCI of different length, passes through parameter Vadd_sumTo embody
PDSCH and PDCCH performance difference, make the CCE of selection more reasonable, the effectively lifting PDCCH on the basis of PDCCH performances are ensured
Capacity.
It is preferred that the judging unit is specifically used for：
Judge to whether there is missing inspection using UE after current CCE polymerization grades, if it is, Vadd=-Kstep, it is no
Then, Vadd=step；
Wherein, VaddThis adjustment PDCCH CCE grades are represented, K represents the PDCCH's that default intoo drastic biopsy is surveyed
The ratio of the CCE level adjustment step-lengths for the PDCCH that CCE level adjustments step-length is surveyed with too drastic biopsy, step represent default PDCCH
After too drastic biopsy is surveyed, CCE level adjustments step-length corresponding to the PDCCH.
It is preferred that the determining unit utilizes following equation, according to this adjustment PDCCH CCE grades, and CCE
Initial value, redefine currently employed CCE polymerization grades：
Vadd_sum=Vadd_sum+Vadd
Redefine currently employed CCE polymerization grades=floor (CCEinit+Vadd_sum)
Wherein, VaddThis adjustment PDCCH CCE grades are represented, floor () represents to round downwards, CCEinitRepresent CCE
Initial value.
It is preferred that
If floor (CCEinit+Vadd_sum) being equal to 1, then the currently employed CCE that the determining unit redefines gathers
It is 1 to close grade；
If floor (CCEinit+Vadd_sum) being equal to 2, then the currently employed CCE that the determining unit redefines gathers
It is 2 to close grade；
If floor (CCEinit+Vadd_sum) being equal to 3, then the currently employed CCE that the determining unit redefines gathers
It is 4 to close grade；
If floor (CCEinit+Vadd_sum) being equal to 4, then the currently employed CCE that the determining unit redefines gathers
It is 8 to close grade.
Brief description of the drawings
Fig. 1 is the schematic flow sheet that a kind of CCE polymerization grades provided in an embodiment of the present invention determine method；
Fig. 2 is a kind of structural representation of CCE polymerization grades determining device provided in an embodiment of the present invention.
Embodiment
The embodiments of the invention provide a kind of CCE polymerization grades to determine method and device, to adaptively according to channel
Quality information and PDCCH itself detection performance select suitable CCE sizes, consider power system capacity and UE handling capacity
Performance, PDCCH capacity is rationally lifted on the basis of PDCCH performances are ensured.
The embodiment of the present invention causes false dismissal probability to increase greatly in order to effectively solve PDCCH because instantaneous CCE polymerization grades become
The problem of, the scheme of proposition of the embodiment of the present invention, it is described in detail below：
The basic thought of the program is to determine which PDCCH should use actually according to statistics PDCCH false dismissal probability
CCE polymerization grades, no longer PDCCH and PDSCH performance are bound, specific implementation is as follows.
Referring to Fig. 1, a kind of CCE polymerization grades provided in an embodiment of the present invention determine that method includes：
S101, in each channel quality indicator (CQI) report cycle pre-set, passed according to different multiple-input, multiple-output MIMO
Defeated mode, physical down link sharing channel PDSCH spectrum efficiency is modified, obtains equivalent PDCCH frequency spectrum effect
Rate；
S102, the spectrum efficiency according to the equivalent PDCCH, determine CCE initial value；
S103, judge to whether there is missing inspection using UE after current CCE polymerization grades, and this is determined according to judged result
Adjust PDCCH CCE grades；
S104, the CCE grades according to this adjustment PDCCH, and CCE initial value, are redefined currently employed
CCE polymerization grades.
With it, determine which CCE PDCCH should use polymerize actually according to statistics PDCCH false dismissal probability
Grade, no longer PDCCH and PDSCH performance are bound, adaptively according to channel quality information and PDCCH itself inspection
Performance is surveyed to select suitable CCE sizes, considers power system capacity and UE throughput performance, is ensureing PDCCH performances
On the basis of rationally lifting PDCCH capacity.
It is preferred that being modified using following equation to PDSCH spectrum efficiency, equivalent PDCCH frequency spectrum effect is obtained
Rate：
effPDCCH=effPDSCH+Δ
Wherein, effPDCCHRepresent the spectrum efficiency of the equivalent PDCCH, effPDSCHPDSCH spectrum efficiency is represented,
Δ represents to obtain the adjustment of PDCCH spectrum efficiency by different MIMO transmission mode amendments according to PDSCH spectrum efficiency
Value, when PDSCH MIMO transmission mode is SFBC, Δ=0, when PDSCH MIMO transmission mode is single current wave beam forming,
Δ is negative value, when PDSCH is the MIMO transmission mode of Open-Loop Spatial Multiplexing or dual-stream beamforming, Δ be on the occasion of.
It is preferred that according to the spectrum efficiency of the equivalent PDCCH, CCE initial value is determined, including：
Smooth PDCCH after obtaining smoothly spectrum efficiency is carried out to the spectrum efficiency of the equivalent PDCCH；
According to it is described it is smooth after PDCCH spectrum efficiency, determine CCE initial value.
It is smooth by being carried out to PDSCH spectral efficiency values, avoid single shake from causing PDCCH false dismissal probability to increase.
It is preferred that the spectrum efficiency of the equivalent PDCCH is carried out smoothly using following equation, after obtaining smoothly
PDCCH spectrum efficiency effPDCCH_new；
effPDCCH_new(i)=(1- α) effPDCCH_new(i-1)+α·effPDCCH
Wherein, i represents current CQI report cycles point, and α represents default smoothing factor, effPDCCHRepresent described equivalent
PDCCH spectrum efficiency.
It is preferred that according to it is described it is smooth after PDCCH spectrum efficiency, determine CCE initial value, including：
According to it is described it is smooth after PDCCH spectrum efficiency and Downlink Control Information DCI length, with reference to it is default should
The spectrum efficiency of PDCCH under DCI length and the mapping table of the initial values of CCE, determine CCE initial value.
The threshold value of different CCE and spectrum efficiency is set for the DCI of different length, passes through parameter Vadd_sumTo embody
PDSCH and PDCCH performance difference, make the CCE of selection more reasonable, the effectively lifting PDCCH on the basis of PDCCH performances are ensured
Capacity.
It is preferred that judging to whether there is missing inspection using UE after current CCE polymerization grades, and this is determined according to judged result
Secondary adjustment PDCCH CCE grades, including：
Judge to whether there is missing inspection using UE after current CCE polymerization grades, if it is, Vadd=-Kstep, it is no
Then, Vadd=step；
Wherein, VaddThis adjustment PDCCH CCE grades are represented, K represents the PDCCH's that default intoo drastic biopsy is surveyed
The ratio of the CCE level adjustment step-lengths for the PDCCH that CCE level adjustments step-length is surveyed with too drastic biopsy, step represent default PDCCH
After too drastic biopsy is surveyed, CCE level adjustments step-length corresponding to the PDCCH.
It is preferred that using following equation, according to this adjustment PDCCH CCE grades, and CCE initial value, again
Currently employed CCE polymerization grades are determined, including：
Vadd_sum=Vadd_sum+Vadd
Redefine currently employed CCE polymerization grades=floor (CCEinit+Vadd_sum)
Wherein, VaddThis adjustment PDCCH CCE grades are represented, floor () represents to round downwards, CCEinitRepresent CCE
Initial value.
It is preferred that
If floor (CCEinit+Vadd_sum) being equal to 1, then the currently employed CCE polymerization grades redefined are 1；
If floor (CCEinit+Vadd_sum) being equal to 2, then the currently employed CCE polymerization grades redefined are 2；
If floor (CCEinit+Vadd_sum) being equal to 3, then the currently employed CCE polymerization grades redefined are 4；
If floor (CCEinit+Vadd_sum) being equal to 4, then the currently employed CCE polymerization grades redefined are 8.
The explanation of a specific embodiment is given below.
A kind of CCE polymerization grades provided in an embodiment of the present invention determine that method includes：
Initialize following parameter：
step：After representing that the too drastic biopsies of a PDCCH are surveyed, CCE level adjustments step-length corresponding to the PDCCH.
K：Represent PDCCH CCE that the CCE level adjustments step-length for the PDCCH that intoo drastic biopsy is surveyed is surveyed with too drastic biopsy etc.
The ratio of level adjusting step.
K is determined by the PDCCH false dismissal probabilities and currently employed CCE polymerization grades of initial setting up；For scheduling
Whether descending PDCCH can exceed activation detection threshold (i.e. by confirmation (ACK) information carried on PUCCH or PUSCH
Whether activation detection has been passed through, such as signal power/noise power of ACK information is considered as passing through activation more than or equal to 3.4
Detection, signal power/noise power are considered as less than 3.4 not over activation detection) PDCCH missing inspections are judged whether,
If it is not above activating detection threshold, it is determined that PDCCH missing inspections be present, if more than activation detection threshold, it is determined that be not present
PDCCH missing inspections；Missing inspection can be judged whether by entering line activating detection to PUSCH for the PDCCH of dispatching uplink, when
When arbitrary signal be present on the PUSCH channels of PDCCH instructions, it is determined that in the absence of PDCCH missing inspections, if the PUSCH of PDCCH instructions
When any signal being not present on channel, it is determined that PDCCH missing inspections be present.
M：The parameter of adjusting step corresponding to different polymerization grades is represented, equivalent to zoom factor, is pre-set
Constant.
Due to signal corresponding to adjacent polymerization grade and interference and noise ratio (Signal to Interference
Plus Noise Ratio, SINR) difference of value differs, it is therefore desirable to distinguish arrange parameter for every kind of CCE polymerization grades
M, for example, current CCE numbers be 8 when, M=2, current CCE numbers be 4 when, M=2, current CCE numbers be 2 when, M=5.
Vadd_sum：Accumulation adjustment PDCCH CCE grades.
Vadd：This adjustment PDCCH CCE grades.
Wherein, above-mentioned parameter meets following equation：
Wherein, the initial false dismissal probability of init_BLER expressions, for example, 1 percent, are the values pre-set.
1-init_BLER/M is the adjusting step that intoo drastic biopsy is surveyed；
Init_BLER/M is the adjusting step that too drastic biopsy is surveyed.
Specific CCE polymerization grades determine that method includes：
Step 1:In each CQI report cycles pre-set according to different MIMO transmission modes, to PDSCH's
Spectrum efficiency effPDSCHIt is modified, obtains equivalent PDCCH spectrum efficiency effPDCCH；
effPDCCH=effPDSCH+Δ
Wherein, Δ represents to obtain PDCCH spectrum efficiencies by different MIMO method amendments according to PDSCH spectrum efficiency
Adjusted value；
Δ value depends on different MIMO transmission modes, when PDSCH MIMO transmission mode is SFBC, Δ=0, when
When PDSCH MIMO transmission mode is single current wave beam forming, Δ is negative value, when PDSCH is Open-Loop Spatial Multiplexing or double-current wave beam
During the MIMO transmission mode of figuration, Δ be on the occasion of.
Step 2：Spectral efficiency values corresponding to PDCCH are carried out using following equation smoothly, to obtain effPDCCH_new；
effPDCCH=effPDSCH+Δ
effPDCCH_new(i)=(1- α) effPDCCH_new(i-1)+α·effPDCCH
Wherein, i represents present sub-frame, and α represents default smoothing factor, such as can be 0.125.
Step 3：According to smooth rear PDCCH spectrum efficiency effPDCCH_newWith DCI length information, with reference to following table
Three, i.e., spectrum efficiency and CCE mapping tables under different DCI lengths, carry out the selection CCE of CCE sizesinit, wherein CCEinitFor
CCE initial value.Wherein, DCI length can determine according to the MIMO method of use, such as SFBC DCI length is 31
Bit, SDM DCI length is 51bit, and PORT5 DCI length is 42Bit.
Table three：Spectrum efficiency and CCE mapping tables
Specifically can using mentioned in background technology the step of two by the way of determine.
Step 4：Judge to whether there is missing inspection, if missing inspection be present, V using UE after current CCE polymerization gradesadd=-
Kstep, if missing inspection, V is not presentadd=step.
Step 5：Redefine the CCE polymerization grades=floor (CCE now usedinit+Vadd_sum), wherein Vadd_sum
=Vadd_sum+Vadd。
Wherein, floor () represents to round downwards.
If floor (CCEinit+Vadd_sum) being equal to 1, then the currently employed CCE polymerization grades redefined are 1；
If floor (CCEinit+Vadd_sum) being equal to 2, then the currently employed CCE polymerization grades redefined are 2；
If floor (CCEinit+Vadd_sum) being equal to 3, then the currently employed CCE polymerization grades redefined are 4；
If floor (CCEinit+Vadd_sum) being equal to 4, then the currently employed CCE polymerization grades redefined are 8.
As can be seen here, in the embodiment of the present invention, PDSCH spectral efficiency values are carried out smoothly, avoiding single shake from causing
PDCCH false dismissal probability increase；For the DCI of different length, the threshold value of different CCE and spectrum efficiency is set；According to
Thresholding that the whether too drastic biopsies of PDCCH are surveyed is modified to the CCE of initial selected；Adjusted corresponding to different CCE polymerization grades
Scope is different, and due to 8 CCE to 4 CCE, the SINR value difference needed for 4 CCE to 2 CCE and 2 CCE to 1 CCE is not
Together, it is therefore desirable to which the setting of different adjusted value, i.e. M values is set for different CCE grades.
Correspondingly, referring to Fig. 2, a kind of control channel unit CCE polymerization grade determining devices provided in an embodiment of the present invention,
Including：
Equivalent unit 11, in each channel quality indicator (CQI) report cycle pre-set, according to it is different enter
MIMO transmission mode is had more, physical down link sharing channel PDSCH spectrum efficiency is modified, is obtained equivalent
PDCCH spectrum efficiency；
CCE initial values determining unit 12, for the spectrum efficiency according to the equivalent PDCCH, determine that the initial of CCE takes
Value；
Judging unit 13, for judging to whether there is missing inspection using UE after current CCE polymerization grades, and tied according to judgement
Fruit determines this adjustment PDCCH CCE grades；
Determining unit 14, for the CCE grades according to this adjustment PDCCH, and CCE initial value, redefine
Currently employed CCE polymerization grades.
By the device, determine which CCE PDCCH should use polymerize actually according to statistics PDCCH false dismissal probability
Grade, no longer PDCCH and PDSCH performance are bound, adaptively according to channel quality information and PDCCH itself inspection
Performance is surveyed to select suitable CCE sizes, considers power system capacity and UE throughput performance, is ensureing PDCCH performances
On the basis of rationally lifting PDCCH capacity.
It is preferred that the equivalent unit is modified using following equation to PDSCH spectrum efficiency, obtain equivalent
PDCCH spectrum efficiency：
effPDCCH=effPDSCH+Δ
Wherein, effPDCCHRepresent the spectrum efficiency of the equivalent PDCCH, effPDSCHPDSCH spectrum efficiency is represented,
Δ represents to obtain the adjustment of PDCCH spectrum efficiency by different MIMO transmission mode amendments according to PDSCH spectrum efficiency
Value, when PDSCH MIMO transmission mode is SFBC, Δ=0, when PDSCH MIMO transmission mode is single current wave beam forming,
Δ is negative value, when PDSCH is the MIMO transmission mode of Open-Loop Spatial Multiplexing or dual-stream beamforming, Δ be on the occasion of.
It is preferred that the CCE initial values determining unit is specifically used for：
Smooth PDCCH after obtaining smoothly spectrum efficiency is carried out to the spectrum efficiency of the equivalent PDCCH；
According to it is described it is smooth after PDCCH spectrum efficiency, determine CCE initial value.
It is smooth by being carried out to PDSCH spectral efficiency values, avoid single shake from causing PDCCH false dismissal probability to increase.
It is preferred that the CCE initial values determining unit is entered using following equation to the spectrum efficiency of the equivalent PDCCH
Row is smooth, the spectrum efficiency eff of the PDCCH after obtaining smoothlyPDCCH_new；
effPDCCH_new(i)=(1- α) effPDCCH_new(i-1)+α·effPDCCH
Wherein, i represents current CQI report cycles point, and α represents default smoothing factor, effPDCCHRepresent described equivalent
PDCCH spectrum efficiency.
It is preferred that the CCE initial values determining unit according to it is described it is smooth after PDCCH spectrum efficiency, determine CCE's
During initial value, it is specifically used for：
According to it is described it is smooth after PDCCH spectrum efficiency and Downlink Control Information DCI length, with reference to it is default should
The spectrum efficiency of PDCCH under DCI length and the mapping table of the initial values of CCE, determine CCE initial value.
The threshold value of different CCE and spectrum efficiency is set for the DCI of different length, passes through parameter Vadd_sumTo embody
PDSCH and PDCCH performance difference, make the CCE of selection more reasonable, the effectively lifting PDCCH on the basis of PDCCH performances are ensured
Capacity.
It is preferred that the judging unit is specifically used for：
Judge to whether there is missing inspection using UE after current CCE polymerization grades, if it is, Vadd=-Kstep, it is no
Then, Vadd=step；
Wherein, VaddThis adjustment PDCCH CCE grades are represented, K represents the PDCCH's that default intoo drastic biopsy is surveyed
The ratio of the CCE level adjustment step-lengths for the PDCCH that CCE level adjustments step-length is surveyed with too drastic biopsy, step represent default PDCCH
After too drastic biopsy is surveyed, CCE level adjustments step-length corresponding to the PDCCH.
It is preferred that the determining unit utilizes following equation, according to this adjustment PDCCH CCE grades, and CCE
Initial value, redefine currently employed CCE polymerization grades：
Vadd_sum=Vadd_sum+Vadd
Redefine currently employed CCE polymerization grades=floor (CCEinit+Vadd_sum)
Wherein, VaddThis adjustment PDCCH CCE grades are represented, floor () represents to round downwards, CCEinitRepresent CCE
Initial value.
It is preferred that
If floor (CCEinit+Vadd_sum) being equal to 1, then the currently employed CCE that the determining unit redefines gathers
It is 1 to close grade；
If floor (CCEinit+Vadd_sum) being equal to 2, then the currently employed CCE that the determining unit redefines gathers
It is 2 to close grade；
If floor (CCEinit+Vadd_sum) being equal to 3, then the currently employed CCE that the determining unit redefines gathers
It is 4 to close grade；
If floor (CCEinit+Vadd_sum) being equal to 4, then the currently employed CCE that the determining unit redefines gathers
It is 8 to close grade.
In summary, the present invention is no longer bound the performance of PDCCH performance and PDSCH, passes through parameter Vadd_sum
To embody PDSCH and PDCCH performance difference, at the same during to initial selected CCE grades PDCCH spectrum efficiency carry out it is smooth,
Make the CCE of selection more reasonable, PDCCH capacity is effectively lifted on the basis of PDCCH performances are ensured.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more
The shape for the computer program product that usable storage medium is implemented on (including but is not limited to magnetic disk storage and optical memory etc.)
Formula.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (10)
1. a kind of control channel unit CCE polymerization grades determine method, it is characterised in that this method includes：
It is right according to different multiple-input, multiple-output MIMO transmission modes in each channel quality indicator (CQI) report cycle pre-set
Physical down link sharing channel PDSCH spectrum efficiency is modified, and obtains equivalent PDCCH spectrum efficiency；
According to the spectrum efficiency of the equivalent PDCCH, CCE initial value is determined；
Judge to whether there is missing inspection using UE after current CCE polymerization grades, and this adjustment PDCCH is determined according to judged result
CCE grades；
According to this adjustment PDCCH CCE grades, and CCE initial value, currently employed CCE polymerizations etc. are redefined
Level；
Wherein, according to the spectrum efficiency of the equivalent PDCCH, CCE initial value is determined, including：
Smooth PDCCH after obtaining smoothly spectrum efficiency is carried out to the spectrum efficiency of the equivalent PDCCH；
According to it is described it is smooth after PDCCH spectrum efficiency, determine CCE initial value；
Wherein, according to it is described it is smooth after PDCCH spectrum efficiency, determine CCE initial value, including：
According to it is described it is smooth after PDCCH spectrum efficiency and Downlink Control Information DCI length, grown with reference to the default DCI
The spectrum efficiency of PDCCH under degree and the mapping table of the initial values of CCE, determine CCE initial value；
Wherein, judge that UE whether there is missing inspection after using current CCE polymerization grades, specifically include：
For the PDCCH of dispatching downlink, whether activation detection door has been exceeded by the confirmation carried on PUCCH or PUSCH
Limit to judge whether PDCCH missing inspections, if being not above activating detection threshold, it is determined that PDCCH missing inspections be present, if more than sharp
Detection threshold living, it is determined that in the absence of PDCCH missing inspections；For the PDCCH of dispatching uplink, detected by entering line activating to PUSCH
To judge whether missing inspection, when arbitrary signal be present on the PUSCH channels of PDCCH instructions, it is determined that leaked in the absence of PDCCH
Inspection, if any signal is not present on the PUSCH channels of PDCCH instructions, it is determined that PDCCH missing inspections be present；
It is described to judge to whether there is missing inspection using UE after current CCE polymerization grades, and this adjustment is determined according to judged result
PDCCH CCE grades, including：
Judge to whether there is missing inspection using UE after current CCE polymerization grades, if it is, Vadd=-Kstep, otherwise, Vadd
=step；
Wherein, VaddThis adjustment PDCCH CCE grades are represented, K represents PDCCH CCE that default intoo drastic biopsy is surveyed etc.
The ratio of the CCE level adjustment step-lengths for the PDCCH that level adjusting step is surveyed with too drastic biopsy, step represent that default PDCCH is too drastic
After biopsy is surveyed, CCE level adjustments step-length corresponding to the PDCCH.
2. according to the method for claim 1, it is characterised in that PDSCH spectrum efficiency is repaiied using following equation
Just, equivalent PDCCH spectrum efficiency is obtained：
effPDCCH=effPDSCH+Δ
Wherein, effPDCCHRepresent the spectrum efficiency of the equivalent PDCCH, effPDSCHPDSCH spectrum efficiency is represented, Δ represents
The adjusted value of PDCCH spectrum efficiency is obtained by different MIMO transmission mode amendments according to PDSCH spectrum efficiency, when
When PDSCH MIMO transmission mode is SFBC, Δ=0, when PDSCH MIMO transmission mode is single current wave beam forming, Δ is
Negative value, when PDSCH is the MIMO transmission mode of Open-Loop Spatial Multiplexing or dual-stream beamforming, Δ be on the occasion of.
3. according to the method for claim 2, it is characterised in that the frequency spectrum using following equation to the equivalent PDCCH
Efficiency carries out smooth PDCCH after obtaining smoothly spectrum efficiency effPDCCH_new；
effPDCCH_new(i)=(1- α) effPDCCH_new(i-1)+α·effPDCCH
Wherein, i represents current CQI report cycles point, and α represents default smoothing factor, effPDCCHRepresent the equivalent PDCCH
Spectrum efficiency.
4. according to the method for claim 1, it is characterised in that using following equation, according to this adjustment PDCCH CCE
Grade, and CCE initial value, currently employed CCE polymerization grades are redefined, including：
Vadd_sum=Vadd_sum+Vadd
Redefine currently employed CCE polymerization grades=floor (CCEinit+Vadd_sum)
Wherein, VaddThis adjustment PDCCH CCE grades are represented, floor () represents to round downwards, CCEinitRepresent that CCE's is first
Beginning value.
5. according to the method for claim 4, it is characterised in that
If floor (CCEinit+Vadd_sum) being equal to 1, then the currently employed CCE polymerization grades redefined are 1；
If floor (CCEinit+Vadd_sum) being equal to 2, then the currently employed CCE polymerization grades redefined are 2；
If floor (CCEinit+Vadd_sum) being equal to 3, then the currently employed CCE polymerization grades redefined are 4；
If floor (CCEinit+Vadd_sum) being equal to 4, then the currently employed CCE polymerization grades redefined are 8.
6. a kind of control channel unit CCE polymerization grade determining devices, it is characterised in that the device includes：
Equivalent unit, in each channel quality indicator (CQI) report cycle pre-set, according to different multiple-input, multiple-output
MIMO transmission mode, physical down link sharing channel PDSCH spectrum efficiency is modified, obtains equivalent PDCCH's
Spectrum efficiency；
CCE initial value determining units, for the spectrum efficiency according to the equivalent PDCCH, determine CCE initial value；
Judging unit, for judging to whether there is missing inspection using UE after current CCE polymerization grades, and determined according to judged result
This adjustment PDCCH CCE grades；
Determining unit, for the CCE grades according to this adjustment PDCCH, and CCE initial value, redefine and currently adopt
CCE polymerization grades；
Wherein, the CCE initial values determining unit is specifically used for：
Smooth PDCCH after obtaining smoothly spectrum efficiency is carried out to the spectrum efficiency of the equivalent PDCCH；
According to it is described it is smooth after PDCCH spectrum efficiency, determine CCE initial value；
Wherein, the CCE initial values determining unit according to it is described it is smooth after PDCCH spectrum efficiency, determine that the initial of CCE takes
During value, it is specifically used for：
According to it is described it is smooth after PDCCH spectrum efficiency and Downlink Control Information DCI length, grown with reference to the default DCI
The spectrum efficiency of PDCCH under degree and the mapping table of the initial values of CCE, determine CCE initial value；
Wherein, judge that UE whether there is missing inspection after using current CCE polymerization grades, be specifically used for：
For the PDCCH of dispatching downlink, whether activation detection door has been exceeded by the confirmation carried on PUCCH or PUSCH
Limit to judge whether PDCCH missing inspections, if being not above activating detection threshold, it is determined that PDCCH missing inspections be present, if more than sharp
Detection threshold living, it is determined that in the absence of PDCCH missing inspections；For the PDCCH of dispatching uplink, detected by entering line activating to PUSCH
To judge whether missing inspection, when arbitrary signal be present on the PUSCH channels of PDCCH instructions, it is determined that leaked in the absence of PDCCH
Inspection, if any signal is not present on the PUSCH channels of PDCCH instructions, it is determined that PDCCH missing inspections be present；
The judging unit is specifically used for：
Judge to whether there is missing inspection using UE after current CCE polymerization grades, if it is, Vadd=-Kstep, otherwise, Vadd
=step；
Wherein, VaddThis adjustment PDCCH CCE grades are represented, K represents PDCCH CCE that default intoo drastic biopsy is surveyed etc.
The ratio of the CCE level adjustment step-lengths for the PDCCH that level adjusting step is surveyed with too drastic biopsy, step represent that default PDCCH is too drastic
After biopsy is surveyed, CCE level adjustments step-length corresponding to the PDCCH.
7. device according to claim 6, it is characterised in that frequency of the equivalent unit using following equation to PDSCH
Spectrum efficiency is modified, and obtains equivalent PDCCH spectrum efficiency：
effPDCCH=effPDSCH+Δ
Wherein, effPDCCHRepresent the spectrum efficiency of the equivalent PDCCH, effPDSCHPDSCH spectrum efficiency is represented, Δ represents
The adjusted value of PDCCH spectrum efficiency is obtained by different MIMO transmission mode amendments according to PDSCH spectrum efficiency, when
When PDSCH MIMO transmission mode is SFBC, Δ=0, when PDSCH MIMO transmission mode is single current wave beam forming, Δ is
Negative value, when PDSCH is the MIMO transmission mode of Open-Loop Spatial Multiplexing or dual-stream beamforming, Δ be on the occasion of.
8. device according to claim 7, it is characterised in that the CCE initial values determining unit uses following equation pair
The spectrum efficiency of the equivalent PDCCH carries out smooth PDCCH after obtaining smoothly spectrum efficiency effPDCCH_new；
effPDCCH_new(i)=(1- α) effPDCCH_new(i-1)+α·effPDCCH
Wherein, i represents current CQI report cycles point, and α represents default smoothing factor, effPDCCHRepresent the equivalent PDCCH
Spectrum efficiency.
9. device according to claim 8, it is characterised in that the determining unit utilizes following equation, according to this tune
Whole PDCCH CCE grades, and CCE initial value, redefine currently employed CCE polymerization grades：
Vadd_sum=Vadd_sum+Vadd
Redefine currently employed CCE polymerization grades=floor (CCEinit+Vadd_sum)
Wherein, VaddThis adjustment PDCCH CCE grades are represented, floor () represents to round downwards, CCEinitRepresent that CCE's is first
Beginning value.
10. device according to claim 9, it is characterised in that
If floor (CCEinit+Vadd_sum) be equal to 1, then currently employed CCE polymerizations that the determining unit redefines etc.
Level is 1；
If floor (CCEinit+Vadd_sum) be equal to 2, then currently employed CCE polymerizations that the determining unit redefines etc.
Level is 2；
If floor (CCEinit+Vadd_sum) be equal to 3, then currently employed CCE polymerizations that the determining unit redefines etc.
Level is 4；
If floor (CCEinit+Vadd_sum) be equal to 4, then currently employed CCE polymerizations that the determining unit redefines etc.
Level is 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410344617.5A CN104125645B (en) | 2014-07-18 | 2014-07-18 | A kind of control channel unit polymerization grade determines method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410344617.5A CN104125645B (en) | 2014-07-18 | 2014-07-18 | A kind of control channel unit polymerization grade determines method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104125645A CN104125645A (en) | 2014-10-29 |
| CN104125645B true CN104125645B (en) | 2017-11-28 |
Family
ID=51770874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410344617.5A Active CN104125645B (en) | 2014-07-18 | 2014-07-18 | A kind of control channel unit polymerization grade determines method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104125645B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105101104B (en) * | 2014-04-18 | 2019-01-01 | 成都鼎桥通信技术有限公司 | Method, base station and the monitor terminal of CCE aggregation levels are adjusted in group service |
| CN105703881B (en) * | 2014-11-28 | 2019-03-12 | 联芯科技有限公司 | The method and device of calculating cycle CQI |
| CN106454885A (en) * | 2015-08-10 | 2017-02-22 | 北京大学 | Method and apparatus for determining aggregation grade of physical downlink control channel |
| CN106817771B (en) * | 2015-11-27 | 2020-05-12 | 大唐移动通信设备有限公司 | Method and device for processing PDCCH (physical Downlink control channel) missing detection |
| CN107343318A (en) * | 2017-01-13 | 2017-11-10 | 西京学院 | PDCCH distribution method of time frequency resources in a kind of LTE |
| CN108631995B (en) * | 2017-03-24 | 2022-06-24 | 中兴通讯股份有限公司 | Method and device for determining control channel search space and computer storage medium |
| CN109802780A (en) * | 2017-11-16 | 2019-05-24 | 展讯通信（上海）有限公司 | Base station and its transmission data method, terminal and its reception data method, medium |
| CN110166165B (en) * | 2018-02-13 | 2021-12-03 | 华为技术有限公司 | Aggregation level notification and receiving method and device |
| CN113286320B (en) * | 2020-02-19 | 2022-04-12 | 大唐移动通信设备有限公司 | Method and device for adjusting CCE aggregation level of control channel unit |
| CN114071472A (en) * | 2020-08-05 | 2022-02-18 | 大唐移动通信设备有限公司 | Resource allocation method and device, and communication equipment |
| CN114363972A (en) * | 2021-12-30 | 2022-04-15 | 赛特斯信息科技股份有限公司 | BWP switching method based on physical downlink control channel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010148666A1 (en) * | 2009-11-16 | 2010-12-29 | 中兴通讯股份有限公司 | Allocation method and device for control channel elements |
| CN102404853A (en) * | 2011-06-29 | 2012-04-04 | 电信科学技术研究院 | Method for sending PDCCHs (Physical Downlink Control Channels) and equipment for sending PDCCHs |
| CN102811495A (en) * | 2011-06-02 | 2012-12-05 | 华为技术有限公司 | Method, device and system for receiving and sending scheduling information |
| CN102821470A (en) * | 2012-08-08 | 2012-12-12 | 大唐移动通信设备有限公司 | Method and device for allocating physical downlink control channel resource |
| CN102868502A (en) * | 2011-07-05 | 2013-01-09 | 中兴通讯股份有限公司 | Method and device for adjusting physical downlink control channel polymerization |
| US20130010724A1 (en) * | 2010-02-14 | 2013-01-10 | Seung Hee Han | Method and apparatus for resolving the confusion in cces |
-
2014
- 2014-07-18 CN CN201410344617.5A patent/CN104125645B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010148666A1 (en) * | 2009-11-16 | 2010-12-29 | 中兴通讯股份有限公司 | Allocation method and device for control channel elements |
| US20130010724A1 (en) * | 2010-02-14 | 2013-01-10 | Seung Hee Han | Method and apparatus for resolving the confusion in cces |
| CN102811495A (en) * | 2011-06-02 | 2012-12-05 | 华为技术有限公司 | Method, device and system for receiving and sending scheduling information |
| CN102404853A (en) * | 2011-06-29 | 2012-04-04 | 电信科学技术研究院 | Method for sending PDCCHs (Physical Downlink Control Channels) and equipment for sending PDCCHs |
| CN102868502A (en) * | 2011-07-05 | 2013-01-09 | 中兴通讯股份有限公司 | Method and device for adjusting physical downlink control channel polymerization |
| CN102821470A (en) * | 2012-08-08 | 2012-12-12 | 大唐移动通信设备有限公司 | Method and device for allocating physical downlink control channel resource |
Non-Patent Citations (1)
| Title |
|---|
| LTE***中PDCCH资源分配算法的研究;李小文，贾海峰;《电信科学》;20120315;第28卷(第3期);87-90 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104125645A (en) | 2014-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104125645B (en) | A kind of control channel unit polymerization grade determines method and device | |
| CN110036673B (en) | Power allocation for uplink transmission | |
| CN111654915B (en) | Transmission system and method for grant-free uplink transmission scheme | |
| WO2017133610A1 (en) | Method, base station, and terminal for resource scheduling in unlicensed frequency band | |
| CN103339999B (en) | Uplink/downlink scheduling information transmitting method and method of reseptance and device | |
| CN103427938B (en) | Method, system and the equipment of configurating channel measurement and DL CSI feedback | |
| CN104243086B (en) | Modulation and Coding Scheme determines method, base station and communication system | |
| US20180115965A1 (en) | User terminal, radio base station, radio communication system and radio communication method | |
| CN104137435B (en) | Reduce the method and apparatus of inter-cell interference in the multi-cell wireless communication system that cooperates | |
| CN102355339B (en) | The sending method and terminal of a kind of feedback information | |
| CN108353405A (en) | Method and apparatus for downlink control channel transmission and detection in wireless communication system | |
| CN108141322A (en) | For enhanced machine type communication（EMTC）HARQ and control channel timing | |
| CN106102176A (en) | Channel state feedback is calculated in the system using public reference signal interference to eliminate | |
| CN106559161A (en) | Transmission and the method and its device of reception Downlink Control Information | |
| RU2012148124A (en) | PROCESSING A CHANNEL QUALITY INDICATOR (CQI) OF AN IMPROVED NODE IN FOR HETEROGENEOUS NETWORKS | |
| CN104104468A (en) | Transmission method and device for uplink downlink configuration information | |
| CN105991260B (en) | Method and apparatus of the transmission for the descending control signaling of extensive carrier wave polymerization | |
| CN106160932A (en) | The method of reporting source of channel state information, user terminal, base station and system | |
| CN107432017A (en) | User terminal, wireless communication system and wireless communications method | |
| JP2020533902A5 (en) | ||
| CN107734653A (en) | A kind of information feedback method, base station and user equipment | |
| EP3379751A1 (en) | Base station operation method and device for supporting d2d signal transmission in wireless communication system | |
| CN103369695B (en) | A kind of uplink dispatch method and device | |
| CN102821470A (en) | Method and device for allocating physical downlink control channel resource | |
| CN103096484B (en) | Terminal scheduling method and apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |