CN105991218A - PDCCH blind detection method and system, and terminal - Google Patents
PDCCH blind detection method and system, and terminal Download PDFInfo
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- CN105991218A CN105991218A CN201510052417.7A CN201510052417A CN105991218A CN 105991218 A CN105991218 A CN 105991218A CN 201510052417 A CN201510052417 A CN 201510052417A CN 105991218 A CN105991218 A CN 105991218A
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Abstract
The present invention discloses a PDCCH blind detection method and system, and a terminal. The method comprises: estimating the number of continuous control channel elements (CCE) used in the PDCCH according to the current channel quality; determining the current CCE source distribution format in the PDCCH based on the number of the continuous CCEs; and performing blind detection by using the current CCE source distribution format and obtaining the channel control information (DCI). The PDCCH blind detection method and system, and the terminal can estimate the CCE format distributed by the network according to the local channel so as to determine the size of the CCE in advance, the format is preferentially used for blind detection to reduce the number of trying the blind detection, and after one CCE format blind detection is not successful, an adjacent CCE format is employed to perform blind detection so as to further decrease the number of the blind detection.
Description
Technical field
The present invention relates to mobile communication technology field, particularly relate to a kind of 4G LTE network
The blind checking method of PDCCH channel, terminal and system.
Background technology
In the lte networks, physical downlink control channel PDCCH is by designing the control of varying number
Channel element CCE processed, adapts to the transmission of different-format Downlink Control Information DCI, and user UE exists
To CCE quantity during demodulation PDCCH, DCI format information, information original position is all unknown
's.User UE does not knows that what current DCI transmitted is the information of what format, does not knows oneself yet
The information needed is in which position.But UE knows what information of needs, such as, in Idle state
The information that UE expects is paging, SI；Initiate after Random Access it is contemplated that RACH
Response；UL Grant etc. is expected having upstream data etc. to be sent when.For difference
Expectation information, UE goes to do CRC check with CCE information with corresponding X-RNTI, if
CRC check success, it may be determined that corresponding DCI format, modulation system, thus solve further
Go out DCI content, here it is the process of " blind Detecting ".
Divide CCE public search space Common Search Space and UE specific search sky
Between UE-Specific Search Space, different information is searched in different spaces.Separately
Outward for the information of some format, a CCE is carrying not, it may be necessary to multiple
CCE.Although PDCCH has excellent design, but searches for a unit being made up of 8 CCE
In space, blind search behavior is not defined by agreement, and user's blind check averagely needs 7.5 times, time most
Need just to be capable of determining whether for 15 times to be scheduled.And when system bandwidth is relatively big, PDCCH channel configuration
In the case of the longest, blind check overlong time can affect the use impression of user, adds end simultaneously
The power consumption of end.
Summary of the invention
In view of this, the technical problem that the invention solves the problems that is to provide a kind of physical down control
The blind checking method of channel PDCCH processed, it is possible to estimate network according to the channel information of own local
The CCE form of distribution.
A kind of blind checking method of PDCCH, including: according to current channel quality estimation
The number of the continuous control channel element CCE used in PDCCH；Based on described continuous CCE
Number determine CCE resource distribution form current in PDCCH；Use described current
CCE resource distribution form carries out blind Detecting and obtains channel control information DCI.
According to one embodiment of present invention, further, if using described current CCE
Resource distribution form carries out blind Detecting failure, uses the CCE resource distribution of all other the most successively
Form carries out blind Detecting, until blind Detecting success.
According to one embodiment of present invention, further, described current channel quality includes:
Signal to Interference plus Noise Ratio SINR.
According to one embodiment of present invention, further, described CCE resource distribution form bag
Include: the first form taking 1 continuous CCE, the second form taking 2 continuous CCE,
Take the 3rd form of 4 continuous CCE, take the 4th form of 8 CCE.
According to one embodiment of present invention, further, the SINR value of detection present channel,
Current CCE resource distribution form is determined based on SINR value；Wherein: as SINR≤0dB
Time, determine that current CCE resource distribution form is the 4th form；As 0dB < SINR≤10dB
Time, determine that current CCE resource distribution form is the 3rd form；When
10dB < during SINR≤25dB, determines that current CCE resource distribution form is the second form；
As SINR > 25dB time, determine that current CCE resource distribution form is the first form.
According to one embodiment of present invention, further, divide when described current CCE resource
When cloth form is respectively the first form, the CCE resource distribution form of all other is used to enter successively
The order of row blind Detecting is: the second form, the 3rd form, the 4th form；When described current
When CCE resource distribution form is the second form, use the CCE resource distribution of all other successively
Form carries out the order of blind Detecting: the 3rd form, the first form, the 4th form；Work as when described
When front CCE resource distribution form is three form, use the CCE resource of all other successively
Distribution mode carries out the order of blind Detecting: the 4th form, the second form, the first form；Work as institute
State current CCE resource distribution form when being four forms, use the CCE of all other successively
Resource distribution form carries out the order of blind Detecting: the 3rd form, the second form, the first form.
Another technical problem that the invention solves the problems that is to provide a kind of terminal, it is possible to according to self originally
The channel information on ground estimates the CCE form of network allocation.
A kind of terminal, including: CCE quantity survey unit, for according to current channel quality
Estimate the number of the continuous control channel element CCE used in PDCCH；CCE resource distribution
Form determines unit, determines in PDCCH current for number based on described continuous CCE
CCE resource distribution form；Blind Detecting unit, for using described current CCE resource distribution
Form carries out blind Detecting and obtains channel control information DCI.
According to one embodiment of present invention, further, described blind Detecting unit, it is additionally operable to work as
When using described current CCE resource distribution form to carry out detecting failed, use other the most successively
Whole CCE resource distribution forms carries out blind Detecting, until blind Detecting success.
According to one embodiment of present invention, further, described current channel quality includes:
Signal to Interference plus Noise Ratio SINR.
According to one embodiment of present invention, further, described CCE resource distribution form bag
Include: the first form taking 1 continuous CCE, the second form taking 2 continuous CCE,
Take the 3rd form of 4 continuous CCE, take the 4th form of 8 CCE.
According to one embodiment of present invention, further, described CCE quantity survey unit,
It is additionally operable to detect the SINR value of present channel, determines current CCE resource based on SINR value
Distribution mode；Wherein: as SINR≤0dB, described CCE quantity survey unit determine work as
Front CCE resource distribution form is the 4th form；When 0dB is < during SINR≤10dB, described
CCE quantity survey unit determines that current CCE resource distribution form is the 3rd form；When
< during SINR≤25dB, described CCE quantity survey unit determines current CCE resource to 10dB
Distribution mode is the second form；As SINR > 25dB time, described CCE quantity survey unit is true
CCE resource distribution form before settled is the first form.
According to one embodiment of present invention, further, divide when described current CCE resource
When cloth form is respectively the first form, described blind Detecting unit uses the CCE of all other successively
Resource distribution form carries out the order of blind Detecting: the second form, the 3rd form, the 4th form；
When described current CCE resource distribution form is the second form, described blind Detecting unit is successively
The CCE resource distribution form using all other carries out the order of blind Detecting: the 3rd form,
First form, the 4th form；When described current CCE resource distribution form is the 3rd form
Time, described blind Detecting unit uses other to use the CCE resource distribution form of all other successively
The order carrying out blind Detecting is: the 4th form, the second form, the first form；When described current
When CCE resource distribution form is four form, use the CCE resource distribution of all other successively
Form carries out the order of blind Detecting: the 3rd form, the second form, the first form.
Another technical problem that the invention solves the problems that is to provide a kind of mobile communication system, including:
Terminal as above；Base station, for channel quality indicator (CQI) based on terminal feedback, determines
The number of the continuous control channel element CCE used in PDCCH and CCE resource distribution lattice
Formula.
The blind checking method of the PDCCH of the present invention, terminal and system, according to channel quality in advance
Estimate the CCE number of network configuration, start detection from most probable CCE form, reduce blind
Detection complexity, optimizes PDCCH demodulating process.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will
The accompanying drawing used required in embodiment or description of the prior art is briefly described, aobvious and easy
Insight, the accompanying drawing in describing below is only some embodiments of the present invention, common for this area
From the point of view of technical staff, on the premise of not paying creative work, it is also possible to according to these accompanying drawings
Obtain other accompanying drawing.
Fig. 1 is the flow process of an embodiment of the blind checking method of the PDCCH according to the present invention
Figure；
Fig. 2 is the flow process of another embodiment of the blind checking method of the PDCCH according to the present invention
Figure；
Fig. 3 is the schematic diagram of PDCCH channel CCE distribution；
Fig. 4 is the sequential schematic carrying out PDCCH Blind channel detection；
Fig. 5 is the modular structure schematic diagram of an embodiment of the terminal according to the present invention.
Detailed description of the invention
With reference to the accompanying drawings the present invention is described more fully, the example of the present invention is wherein described
Property embodiment.Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the skill in the embodiment of the present invention
Art scheme is clearly and completely described, it is clear that described embodiment is only the present invention one
Section Example rather than whole embodiments.Based on the embodiment in the present invention, this area is general
All other embodiments that logical technical staff is obtained under not making creative work premise, all
Belong to the scope of protection of the invention.Below in conjunction with each figure and embodiment to technical scheme
Carry out many descriptions.
Fig. 1 is the flow process of an embodiment of the blind checking method of the PDCCH according to the present invention
Figure, as shown in Figure 1:
Step 101, according to the continuous control letter used in current channel quality estimation PDCCH
The number of road Elements C CE.
Step 102, number based on continuous CCE determines current CCE resource distribution form.
Step 103, uses current CCE resource distribution form carry out blind Detecting and obtain channel
Control information DCI.
The blind checking method of the PDCCH provided in above-described embodiment, it is possible to reduce user's blind check multiple
Miscellaneous degree, shortens the time of user's demodulated channel, improves Consumer's Experience and the use longevity of end cell
Life.
If using current CCE resource distribution form to carry out blind Detecting failure, use the most successively
The CCE resource distribution form of all other carries out blind Detecting, until blind Detecting success.Current
Channel quality includes: Signal to Interference plus Noise Ratio SINR etc..
Multiple PDCCH can be comprised, in order to more effectively join in controlling channel width region simultaneously
Put the running time-frequency resource of various control channel, the resource units being suitable for controlling channel need to be defined and i.e. control letter
Road element (Control Channel Elements, CCE).On PDCCH, carry DCI
The elementary cell of (Downlink Control Information) is CCE.Each CCE comprises
9 REGs (Resource Element Group), each REG comprises 4 REs, also
Be exactly a CCE be the continuous resource block comprising 36 RE.
As it is shown on figure 3, CCE resource distribution form includes: take the first of 1 continuous CCE
Form, take second form of 2 continuous CCE, take the 3rd lattice of 4 continuous CCE
Formula, take the 4th form of 8 CCE.
Owing to the time domain length of PDCCH region is the least, the most each PDCCH should take
All symbols of PDCCH region in this subframe, each PDCCH in i.e. one subframe it
Between be FDM multiplexing, can maximize power control effect, i.e. the best when channel condition
Situation, certain UE has only to 1 CCE and is sufficient for, and base station can be by preferable for channel quality UE
PDCCH launch power save to distribute to the UE that link-quality is poor.
Search volume includes public space (commonspace) and UE private space (UE-
Specific space), have 4 kinds of polymerization grade, be 1,2,4,8 CCE respectively.One
A certain CCE polymerization rank (1/2/4/8) is defined by search volume, and a UE can have many
Individual search volume: UE carries out blind decoding to various possible PDCCH in search volume.Search
All CCEs in rope space are continuous distribution.UE monitors one group of PDCCH and controls letter
Road, this set is allocated to UE by high-level signaling, and the size of set determines UE need to carry out blind solution
Synchronous codes number.
Fig. 2 is the flow process of another embodiment of the blind checking method of the PDCCH according to the present invention
Figure, as shown in Figure 2:
Step 201, network judges UE present channel ring according to the closed loop channel quality information that UE feeds back
Border quality, so that it is determined that the code rate of the PDCCH of this UE adaptive and the number of use CCE resource
Amount.
Such as, the heart in the cell of UE1 now, signal environment is preferable, and SINR is 20dB, net
Network end, according to the channel quality of this UE1, uses the when PDCCH scheduled time division joins CCE resource
One form；If now UE2 is at cell edge, signal environment is poor, and SINR is-5dB, net
Network end, according to the channel quality of this UE2, uses the when PDCCH scheduled time division joins CCE resource
Four forms.
Step 202, UE can estimate network configuration according to current local channel quality information
CCE size, this channel information is knowable for UE, and UE preferentially attempts using present channel
The CCE form of quality matches carries out blind Detecting.
Such as, the SINR of UE1 is 20dB, possesses more preferable channel circumstance, preferentially uses first
Form carries out the blind Detecting of CCE；The SINR of UE2 is-5dB, and channel circumstance is poor, preferentially adopts
The blind Detecting of CCE is carried out with the 4th form.
Step 203, if current CCE form cannot blind check success, then use closest form again
Secondary carry out blind Detecting, until completing the blind Detecting of all 15 kinds of forms in unit search volume, as
Shown in Fig. 4.
Using adjacent form to carry out blind check is the number of times in order to reduce successful blind Detecting.Such as, UE1
Preferential use the first form carries out CCE blind Detecting, if can't detect, uses the second form to carry out blind
Inspection, its order three forms, the 4th form.
The order carrying out blind Detecting can be: is respectively at current CCE resource distribution form
During one form, the CCE resource distribution form of all other is used to carry out the order of blind Detecting successively
For: the second form, the 3rd form, the 4th form；At current CCE resource distribution form it is
During the second form, the CCE resource distribution form of all other is used to carry out the suitable of blind Detecting successively
Sequence is: the 3rd form, the first form, the 4th form.
When current CCE resource distribution form is three form, use all other successively
CCE resource distribution form carries out the order of blind Detecting: the 4th form, the second form, first
Form；When current CCE resource distribution form is four form, use all other successively
CCE resource distribution form carry out the order of blind Detecting and be: the 3rd form, the second form,
One form.
Step 204: 15 blind searches in a unit search volume do not have successful search, then
According to the method for step 201 to step 203, next unit search volume is scanned for.
Terminal blind check is exactly the original position that UE finds CCE, and in CCE original position, intercepting is guessed
The DCI length surveyed, decodes, if in CRC and PDCCH of the information bit after Yi Ma
The CRC carried is identical, then it is assumed that the information bit of current PDCH carrying is exactly current transmission
Downlink Control Information.Various RNTI lie in CRC.
According to the SINR range size generally defined of the far middle near point of user, detection present channel
SINR value, determines current CCE resource distribution form based on SINR value.Such as, when
During SINR≤0dB, determine that current CCE resource distribution form is the 4th form；When
0dB < during SINR≤10dB, determines that current CCE resource distribution form is the 3rd form；When
10dB < during SINR≤25dB, determines that current CCE resource distribution form is the second form；
As SINR > 25dB time, determine that current CCE resource distribution form is the first form.
In LTE system, all of uplink and downlink timeslot scheduling of resource form and information are required for terminal solution
Adjust PDCCH to obtain, PDCCH is terminal communicate with network foundation must channel, therefore this
Plant the application of PDCCH blind checking method frequently.
By the blind checking method of the PDCCH that above-described embodiment provides, user can be according to self
Local channel information estimates the network allocation CCE form to him, thus judges that CCE's is big in advance
Little, preferentially carry out blind Detecting with this form, reduce the number of attempt of blind Detecting.
In the blind checking method of the PDCCH of above-described embodiment offer, blind at a kind of CCE form
After detection not success, neighbouring CCE form is used to carry out blind Detecting, with bigger successful blind check
Survey probability and reduce the number of times of blind Detecting further.
The present invention provides a kind of terminal, as it is shown in figure 5, terminal 5 includes: CCE quantity survey
Unit 51, CCE resource distribution form determine unit 52 and blind Detecting unit 53.Terminal 5 is wrapped
Include: mobile phone, panel computer, notebook computer etc..
CCE quantity survey unit 51 is according to use in current channel quality estimation PDCCH
The number of continuous control channel element CCE.CCE resource distribution form determine unit 52 based on
The number of CCE determines current CCE resource distribution form continuously.
Blind Detecting unit 53 uses current CCE resource distribution form carry out blind Detecting and obtain letter
Road controls information DCI.Blind Detecting unit 53 is additionally operable to when using current CCE resource distribution lattice
When formula carries out detecting failed, the CCE resource distribution form of all other is used to carry out blind the most successively
Detection, until blind Detecting success.
The order proceeding blind Detecting after failure can be: at current CCE resource distribution lattice
When formula is respectively the first form, blind Detecting unit 53 uses the CCE resource of all other to divide successively
Cloth form carries out the order of blind Detecting: the second form, the 3rd form, the 4th form.
When current CCE resource distribution form is the second form, blind Detecting unit 53 makes successively
The order carrying out blind Detecting with the CCE resource distribution form of all other is: the 3rd form,
One form, the 4th form.
When current CCE resource distribution form is three form, blind Detecting unit 53 uses it
The order that it uses the CCE resource distribution form of all other to carry out blind Detecting successively is: the 4th
Form, the second form, the first form.
When current CCE resource distribution form is four form, blind Detecting unit 53 makes successively
The order carrying out blind Detecting with the CCE resource distribution form of all other is: the 3rd form,
Two forms, the first form.
CCE quantity survey unit 51 detects the SINR value of present channel, true based on SINR value
CCE resource distribution form before settled.Such as, as SINR≤0dB, CCE quantity is estimated
Meter unit 51 determines that current CCE resource distribution form is the 4th form.When
< during SINR≤10dB, CCE quantity survey unit 51 determines that current CCE resource is divided to 0dB
Cloth form is the 3rd form.When 10dB < during SINR≤25dB, CCE quantity survey unit 51
Determine that current CCE resource distribution form is the second form.As SINR > 25dB time, CCE
Quantity survey unit 51 determines that current CCE resource distribution form is the first form.
The present invention provides a kind of mobile communication system, including: terminal as above and base station, base station base
In the channel quality indicator (CQI) of terminal feedback, determine the continuous control channel used in PDCCH
The number of Elements C CE and CCE resource distribution form.
The blind checking method of PDCCH, terminal and the system provided in above-described embodiment, Yong Huneng
Enough channel informations according to own local estimate the CCE form of network allocation, thus judge in advance
The size of CCE, preferentially carries out blind Detecting with this form, reduces the number of attempt of blind Detecting, and
And after the not success of a kind of CCE form blind Detecting, use neighbouring CCE form to carry out blind check
Survey, reduce the number of times of blind Detecting with bigger successful blind Detecting probability further.
The blind checking method of PDCCH, terminal and the system provided in above-described embodiment, it is adaptable to
All LTE system PDCCH Blind channels detection process, including the LTE-based on LTE system
A and the system of more evolution.
The method and system of the present invention may be achieved in many ways.Such as, can be by soft
Part, hardware, firmware or software, hardware, any combination of firmware realize the side of the present invention
Method and system.For the said sequence of step of method merely to illustrate, the present invention's
The step of method is not limited to order described in detail above, unless specifically stated otherwise.
Additionally, in certain embodiments, the present invention also can be embodied as the journey recorded in the recording medium
Sequence, these programs include the machine readable instructions for realizing the method according to the invention.Cause
And, the present invention also covers the record of the program for performing the method according to the invention that stores and is situated between
Matter.
Description of the invention is given for the sake of example and description, and is not exhaustively
Or it limit the invention to disclosed form.Many modifications and variations are for the common skill of this area
It is obvious for art personnel.Selecting and describing embodiment is the principle in order to the present invention is more preferably described
Apply with reality, and make those of ordinary skill in the art it will be appreciated that the present invention thus design is suitable
The various embodiments with various amendments in special-purpose.
Claims (13)
1. the blind checking method of a physical downlink control channel PDCCH, it is characterised in that
Including:
According to the continuous control channel element used in current channel quality estimation PDCCH
The number of CCE；
Number based on described continuous CCE determines CCE resource distribution lattice current in PDCCH
Formula；
Described current CCE resource distribution form is used to carry out blind Detecting and obtain channel control letter
Breath DCI.
2. the method for claim 1, it is characterised in that:
If using described current CCE resource distribution form to carry out blind Detecting failure, the most successively
The CCE resource distribution form using all other carries out blind Detecting, until blind Detecting success.
3. method as claimed in claim 1 or 2, it is characterised in that:
Described current channel quality includes: Signal to Interference plus Noise Ratio SINR.
4. method as claimed in claim 3, it is characterised in that:
Described CCE resource distribution form includes: takies first form of 1 continuous CCE, account for
The 3rd form that with second form of 2 continuous CCE, takies 4 continuous CCE, take 8
4th form of individual CCE.
5. method as claimed in claim 4, it is characterised in that:
Based on SINR value, the SINR value of detection present channel, determines that current CCE resource is divided
Cloth form；Wherein:
As SINR≤0dB, determine that current CCE resource distribution form is the 4th form；
When 0dB < during SINR≤10dB, determines that current CCE resource distribution form is the 3rd lattice
Formula；
When 10dB < during SINR≤25dB, determines that current CCE resource distribution form is second
Form；
As SINR > 25dB time, determine that current CCE resource distribution form is the first form.
6. method as claimed in claim 2, it is characterised in that:
When described current CCE resource distribution form is the first form, use other complete successively
The CCE resource distribution form in portion carries out the order of blind Detecting: the second form, the 3rd form,
4th form；
When described current CCE resource distribution form is the second form, use other complete successively
The CCE resource distribution form in portion carries out the order of blind Detecting: the 3rd form, the first form,
4th form；
When described current CCE resource distribution form is three form, use other complete successively
The CCE resource distribution form in portion carries out the order of blind Detecting: the 4th form, the second form,
First form；
When described current CCE resource distribution form is four form, use other complete successively
The CCE resource distribution form in portion carries out the order of blind Detecting: the 3rd form, the second form,
First form.
7. a terminal, it is characterised in that including:
CCE quantity survey unit, for making according in current channel quality estimation PDCCH
The number of continuous control channel element CCE；
CCE resource distribution form determines unit, determines for number based on described continuous CCE
CCE resource distribution form current in PDCCH；
Blind Detecting unit, for using described current CCE resource distribution form to carry out blind Detecting
And obtain channel control information DCI.
8. terminal as claimed in claim 7, it is characterised in that:
Described blind Detecting unit, is additionally operable to when using described current CCE resource distribution form to enter
When row detects unsuccessfully, the CCE resource distribution form of all other is used to carry out blind check the most successively
Survey, until blind Detecting success.
9. terminal as claimed in claim 7 or 8, it is characterised in that:
Described current channel quality includes: Signal to Interference plus Noise Ratio SINR.
10. terminal as claimed in claim 9, it is characterised in that:
Described CCE resource distribution form includes: takies first form of 1 continuous CCE, account for
The 3rd form that with second form of 2 continuous CCE, takies 4 continuous CCE, take 8
4th form of individual CCE.
11. terminals as claimed in claim 10, it is characterised in that:
Described CCE quantity survey unit, is additionally operable to detect the SINR value of present channel, based on
SINR value determines current CCE resource distribution form；Wherein:
As SINR≤0dB, described CCE quantity survey unit determines current CCE resource
Distribution mode is the 4th form；
As 0dB, < during SINR≤10dB, described CCE quantity survey unit determines current
CCE resource distribution form is the 3rd form；
As 10dB, < during SINR≤25dB, described CCE quantity survey unit determines current
CCE resource distribution form is the second form；
As SINR > 25dB time, described CCE quantity survey unit determines current CCE resource
Distribution mode is the first form.
12. terminals as claimed in claim 8, it is characterised in that:
When described current CCE resource distribution form is respectively the first form, described blind Detecting
The order that unit uses the CCE resource distribution form of all other to carry out blind Detecting successively is: the
Two forms, the 3rd form, the 4th form；
When described current CCE resource distribution form is the second form, described blind Detecting unit
The CCE resource distribution form using all other successively carries out the order of blind Detecting: the 3rd lattice
Formula, the first form, the 4th form；
When described current CCE resource distribution form is three form, described blind Detecting unit
Other is used to use the CCE resource distribution form of all other to carry out the order of blind Detecting successively
For: the 4th form, the second form, the first form；
When described current CCE resource distribution form is four form, use other complete successively
The CCE resource distribution form in portion carries out the order of blind Detecting: the 3rd form, the second form,
First form.
13. 1 kinds of mobile communication system, including:
Terminal as described in claim 7 to 12 any one；
Base station, for channel quality indicator (CQI) based on terminal feedback, determines in PDCCH and makes
The number of continuous control channel element CCE and CCE resource distribution form.
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Cited By (9)
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| WO2018228561A1 (en) * | 2017-06-16 | 2018-12-20 | 华为技术有限公司 | Resource allocation method, network device and terminal device |
| WO2019028830A1 (en) * | 2017-08-11 | 2019-02-14 | Zte Corporation | Candidate control channel blind detection |
| CN109787710A (en) * | 2017-11-14 | 2019-05-21 | 深圳市中兴微电子技术有限公司 | A kind of blind checking method and device, computer readable storage medium |
| CN111758286A (en) * | 2018-08-10 | 2020-10-09 | Lg电子株式会社 | Method of performing channel estimation in wireless communication system and apparatus therefor |
| CN111818650A (en) * | 2017-10-20 | 2020-10-23 | 华为技术有限公司 | Method and device for transmitting downlink control information and acquiring blind detection times |
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