CN103457688B - Downlink Control Information blind checking method and device - Google Patents
Downlink Control Information blind checking method and device Download PDFInfo
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Abstract
The invention discloses a kind of Downlink Control Information blind checking method and devices.Wherein, this method includes：From long term evolution（LTE）The physical layer of system（PHY）Obtain Physical Downlink Control Channel（PDCCH）The resource group position information of occupancy；From the media access control of LTE system（MAC）Layer obtains multiple user equipmenies for needing to carry out blind Detecting（UE）MAC layer information, according to the Downlink Control Information of the multiple UE of MAC layer acquisition of information（DCI）The grouping information of detection zone；DCI blind detection survey is carried out according to the grouping information of the PDCCH resource group position informations occupied and DCI detection zones.Blind Detecting number, operation time are largely reduced by the invention it is possible to reach, greatly improves the effect of operation efficiency, detection efficiency.
Description
Technical field
The present invention relates to the communications fields, in particular to a kind of Downlink Control Information blind checking method and device.
Background technology
In long term evolution（Long Term Evolution, referred to as LTE）In communication system, all user equipmenies（User
Equipment, referred to as UE）Service dispatching information be to pass through Physical Downlink Control Channel（Physical Downlink
Control Channel, referred to as PDCCH）It issues, the service dispatching information of each UE is by a Downlink Control Information
（Downlink Control Information, referred to as DCI）It carries.Multiple UE of transmitting terminal are to its Downlink Control Information
（DCI）Process flow it is as shown in Figure 1（Fig. 1 is the place according to the Downlink Control Information of the LTE system transmitting terminal UE of the relevant technologies
Manage flow chart）.
Defined in LTE protocol Downlink Control Information each subframe preceding n（1<=n<=3）A orthogonal frequency division multiplexing
（Orthogonal Frequency Division Multiplexing, referred to as OFDM）Mapping in symbol is sequentially first
It maps control format and indicates information（Control Format Indication, referred to as CFI）, then mapping mixing is automatic heavy
Pass request（Hybrid Auto Retransmission Quest, referred to as HARQ）Indicate information（HI）, finally map downlink
Control information（DCI）, therefore the sides UE need the detection for completing following control channel, including physics before carrying out PDCCH detections
Broadcast channel（Physical Broadcast Channel, referred to as PBCH）, Physical Control Format Indicator Channel（Physical
Control Format Indicative Channel, referred to as PCFICH）And physical mixing retransmission indicating chanel
（Physical Hybrid retransmission Indicative Channel, referred to as PHICH）, control channel detection
Basic flow chart it is as shown in Figure 2（Fig. 2 is the basic procedure that control channel detection is carried out according to the receiving terminal UE of the relevant technologies
Figure）.
System bandwidth, PHICH duration and PHICH resource size instruction letter can be obtained by detecting PBCH channels
Breath；The money of OFDM symbol number and PCFICH occupancy that information occupancy is controlled in the subframe can be obtained by detecting PCFICH channels
Source group position；The resource group position of PHICH occupancy can be obtained by detecting PHICH channels, UE can finally be obtained according to information above
It takes the resource group position information that PDCCH is occupied and carries out solution physical resource mapping, basic procedure such as Fig. 3 of PDCCH Channel Detections
It is shown（Fig. 3 is the basic flow chart that PDCCH detections are carried out according to the receiving terminal UE of the relevant technologies）.
PDCCH information after descrambling is that the DCI of all UE in cell merges as a result, the mapping of DCI is according to PDCCH formats
（Format）It completes.PDCCH Format are with control channel unit（Control Channel Element, referred to as CCE）
Horizontal set is unit, shares 4 kinds, is made of respectively 1CCE, 2CCE, 4CCE, 8CCE.Wherein, each CCE includes 9 resources
Particle group（Resource Element Group, referred to as REG）, REG is the minimum unit of down control channel resources mapping,
Including 4 resource particles that can be used for control channel（Resource Element, referred to as RE）, wherein PDCCH Format,
CCE, REG and Payload（bit）Relationship is as shown in table 1.
Table 1, Supported PDCCH formats
For different search spaces, different CCE set level and different UE, the initial position of CCE
May be different, since UE is horizontal and start position information is unknown for the CCE set of the DCI types, use that need to detect, because
This needs to carry out PDCCH blind Detectings, is scanned for the PDCCH information after descrambling according to certain rule, possible to each
Information carries out solution rate-matched, channel decoding, cyclic redundancy check（Cyclic Redundancy Check, referred to as CRC）Solution
CRC is disturbed and solved, can think that PDCCH is detected successfully when CRC is correct, otherwise it is assumed that DCI is not detected.
Solution rate-matched reconciliation CRC is carried out in DCI detection process, it is known that solution rate-matched, which needs the length of DCI,
, for different DCI types, length may differ, the radio network temporary identifier that solution CRC need to be configured（Radio
Network Temporary Identity, referred to as RNTI）Value is known, therefore UE is firstly the need of according to effective RNTI classes
Type obtains DCI types to be detected.When UE carries out PDCCH detections, or the identical RNTI of use using different RNTI types
Type（Including Cell Radio Network Temporary Identifier/Identity, Cell-RNTI（Cell-Radio Network Temporary Identity, referred to as C-
RNTI）With semi-persistent scheduling Cell Radio Network Temporary Identifier/Identity, Cell-RNTI（Semi-Persistent Scheduling Cell-Radio
Network Temporary Identity, referred to as SPS C-RNTI））But it when transmission mode is not carried out at the same time DCI detections, needs
The DCI format to be detected also is different.Different RNTI types need the DCI types detected to be shown in Table 2 under different transmission mode.
Table 2, difference RNTI correspond to DCI type lists to be detected
If there are multiple UE, each UE to be required for carrying out similar DCI blind detection survey in system, to determine that this UE can be used
Physical resource.In LTE system, the resource of PDCCH blind Detectings consumption is more, and the time of occupancy is also long, if receiving terminal
When carrying out more UE blind examinations, also according to the method progress similar to single UE, the resource and cost consumed is unacceptable.
For in LTE system in the related technology, there are need to carry out multiple DCI blind detection survey when multiple UE to cause to expend resource
It is more, waste time longer problem, currently no effective solution has been proposed.
Invention content
The present invention provides a kind of Downlink Control Information blind checking method and devices, at least to solve the above problems.
According to an aspect of the invention, there is provided a kind of Downlink Control Information blind checking method, including：From long term evolution
（LTE）The physical layer of system（PHY）Obtain Physical Downlink Control Channel（PDCCH）The resource group position information of occupancy；From LTE systems
The media access control of system（MAC）Layer obtains multiple user equipmenies for needing to carry out blind Detecting（UE）MAC layer information, according to
The Downlink Control Information of the multiple UE of MAC layer acquisition of information（DCI）The grouping information of detection zone；The resource occupied according to PDCCH
The grouping information of group location information and DCI detection zones carries out DCI blind detection survey.
Preferably, from long term evolution（LTE）The physical layer of system（PHY）Obtain Physical Downlink Control Channel（PDCCH）It accounts for
Resource group position information, including：By to Physical Broadcast Channel（PBCH）It is detected and obtains system bandwidth, physical mixed
Retransmission indicating chanel（PHICH）Duration and PHICH resource size indicate information；By indicating to believe to physical control format
Road（PCFICH）It is detected and obtains the orthogonal frequency division multiplexing that control information occupies（OFDM）The money that symbolic number and PCFICH are occupied
Source group position；By being detected the resource group position for obtaining PHICH and occupying to PHICH；It is lasting according to system bandwidth, PHICH
Time, PHICH resource size instruction information, control information occupy OFDM symbol number, PCFICH occupy resource group position with
And the resource group position information that the resource group position acquisition PDCCH of PHICH occupancy is occupied.
Preferably, from the media access control of LTE system（MAC）Layer obtains multiple user equipmenies for needing to carry out blind Detecting
（UE）MAC layer information, according to the Downlink Control Information of the multiple UE of MAC layer acquisition of information（DCI）The grouping information of detection zone,
Including：MAC information is obtained from MAC, wherein MAC information includes：Radio network temporary identifier（RNTI）Value, RNTI types and
Transmission mode；First time grouping is carried out to multiple UE according to RNTI types, wherein RNTI types include：Cell-radio network faces
When identify（C-RNTI）With semi-persistent scheduling Cell Radio Network Temporary Identifier/Identity, Cell-RNTI（SPS C-RNTI）；According to transmission mode pair first
Multiple UE in multiple UE and SPS C-RNTI groupings in the C-RNTI groupings obtained after secondary grouping continue second point
Group；The UE grouping sheets of multiple UE are obtained according to the result being grouped twice, wherein UE grouping sheets include：Under each transmission mode
The RNTI values that should use of UE；The grouping of the DCI detection zones of multiple UE in each UE grouping sheets is obtained according to RNTI values
Information.
Preferably, the grouping information of the DCI detection zones of multiple UE in each UE grouping sheets is obtained according to RNTI values, is wrapped
It includes：The search spaces DCI of multiple UE in UE groupings are calculated according to each UE grouping sheets；To the repetition in the search spaces DCI
Search space merges processing, obtains the grouping information of the DCI detection zones of multiple UE in each UE grouping sheets.
Preferably, the grouping information progress DCI according to the PDCCH resource group position informations occupied and DCI detection zones is blind
Detection, including：Solution physical resource mapping is carried out to the PDCCH resource group position informations occupied, acquisition PDCCH is mapped to DCI and searches
The mapping relations in rope space；DCI blind detection survey is carried out according to mapping relations combination DCI detection zone information.
According to another aspect of the present invention, a kind of Downlink Control Information blind Detecting device is provided, including：First obtains mould
Block is used for from long term evolution（LTE）The physical layer of system（PHY）Obtain Physical Downlink Control Channel（PDCCH）The resource of occupancy
Group location information；Second acquisition module, for the media access control from LTE system（MAC）Layer obtain it is multiple need to carry out it is blind
The user equipment of detection（UE）MAC layer information, according to the Downlink Control Information of the multiple UE of MAC layer acquisition of information（DCI）Detection
The grouping information in region；Detection module, for the grouping according to the PDCCH resource group position information occupied and DCI detection zones
Information carries out DCI blind detection survey.
Preferably, the first acquisition module includes：First acquisition unit, for by Physical Broadcast Channel（PBCH）It carries out
Detection obtains system bandwidth, physical mixing retransmission indicating chanel（PHICH）Duration and PHICH resource size instruction letter
Breath；Second acquisition unit, for by Physical Control Format Indicator Channel（PCFICH）Acquisition control information is detected to account for
Orthogonal frequency division multiplexing（OFDM）The resource group position that symbolic number and PCFICH are occupied；Third acquiring unit, for by pair
PHICH, which is detected, obtains the resource group position that PHICH is occupied；4th acquiring unit, for being held according to system bandwidth, PHICH
The resource group position that continuous time, PHICH resource size instruction information, the OFDM symbol number of control information occupancy, PCFICH are occupied
And the resource group position information that the resource group position acquisition PDCCH of PHICH occupancy is occupied.
Preferably, the second acquisition module includes：5th acquiring unit, for obtaining MAC information from MAC, wherein MAC believes
Breath includes：Radio network temporary identifier（RNTI）Value, RNTI types and transmission mode；First grouped element is used for basis
RNTI types carry out first time grouping to multiple UE, wherein RNTI types include：Cell Radio Network Temporary Identifier/Identity, Cell-RNTI（C-RNTI）
With semi-persistent scheduling Cell Radio Network Temporary Identifier/Identity, Cell-RNTI（SPS C-RNTI）；Second packet unit, for according to transmission mode pair
Multiple UE in multiple UE and SPS C-RNTI groupings in the C-RNTI groupings obtained after being grouped for the first time continue second
Secondary grouping；6th acquiring unit, the UE grouping sheets for obtaining multiple UE according to the result being grouped twice, wherein UE grouping sheets
Include：The RNTI values that UE under each transmission mode should be used；7th acquiring unit, it is each for being obtained according to RNTI values
The grouping information of the DCI detection zones of multiple UE in UE grouping sheets.
Preferably, the 6th acquiring unit includes：Computing unit, for being calculated according to the corresponding RNTI of each transmission mode
The search spaces DCI；Processing unit obtains each UE for merging processing to the repeat search space in the search spaces DCI
The grouping information of the DCI detection zones of multiple UE in grouping sheet.
Preferably, detection module includes：Obtaining unit, the resource group position information for being occupied to PDCCH carry out solution object
Resource impact is managed, the mapping relations that PDCCH is mapped to the search spaces DCI are obtained；Detection unit, for being combined according to mapping relations
DCI detection zone information tables carry out DCI blind detection survey.
Through the invention, blind examination is carried out to multiple UE again using after the grouping information for the DCI detection zones for obtaining multiple UE,
The case where only detecting the position for being likely to occur DCI, may mapping multiple UE for certain position, it is only necessary to which the band of position is carried out
Primary decoding, the mode of the operations such as rate-matched solve in existing LTE system that there are need to carry out multiple DCI when multiple UE
Blind Detecting cause expend resource it is more, waste time longer problem, and then reached can largely reduce blind Detecting number, fortune
Evaluation time greatly improves the effect of operation efficiency, detection efficiency.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the process chart according to the Downlink Control Information of the LTE system transmitting terminal UE of the relevant technologies；
Fig. 2 is the basic flow chart that control channel detection is carried out according to the receiving terminal UE of the relevant technologies；
Fig. 3 is the basic flow chart that PDCCH detections are carried out according to the receiving terminal UE of the relevant technologies；
Fig. 4 is Downlink Control Information blind checking method flow chart according to the ... of the embodiment of the present invention；
Fig. 5 is Downlink Control Information blind Detecting flow diagram according to the preferred embodiment of the invention；
Fig. 6 is the detail flowchart of Downlink Control Information blind Detecting according to the preferred embodiment of the invention；
Fig. 7 is the structural schematic diagram in the dedicated search space of 6 UE in LTE system according to the preferred embodiment of the invention；
Fig. 8 is the structural schematic diagram in the dedicated search space after 6 UE according to the preferred embodiment of the invention merge；
Fig. 9 is the structure diagram of Downlink Control Information blind Detecting device according to the ... of the embodiment of the present invention；
Figure 10 is the structure diagram of Downlink Control Information blind Detecting device according to the preferred embodiment of the invention；
Figure 11 is the structure diagram according to the Downlink Control Information blind Detecting device of another preferred embodiment of the present invention.
Specific implementation mode
Come that the present invention will be described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
Fig. 4 is Downlink Control Information blind checking method flow chart according to the ... of the embodiment of the present invention, as shown in figure 4, this method
It mainly includes the following steps that（Step S402- steps S406）：
Step S402, from long term evolution（LTE）The physical layer of system（PHY）Obtain Physical Downlink Control Channel（PDCCH）
The resource group position information of occupancy.
Step S404, from the media access control of LTE system（MAC）Layer acquisition is multiple to need the user for carrying out blind Detecting to set
It is standby（UE）MAC layer information, according to the Downlink Control Information of the multiple UE of MAC layer acquisition of information（DCI）The grouping of detection zone is believed
Breath.
Step S406 carries out DCI according to the grouping information of the PDCCH resource group position informations occupied and DCI detection zones
Blind Detecting.
In the step S402 of the present embodiment, from long term evolution（LTE）The physical layer of system（PHY）Obtain physical down control
Channel processed（PDCCH）When the resource group position information of occupancy, it can be achieved：It first passes through to Physical Broadcast Channel（PBCH）Into
Row detection obtains system bandwidth, physical mixing retransmission indicating chanel（PHICH）Duration and PHICH resource size instruction letter
Breath；Again by Physical Control Format Indicator Channel（PCFICH）It is detected and obtains the orthogonal frequency division multiplexing that control information occupies
（OFDM）The resource group position that symbolic number and PCFICH are occupied；Again by being detected the resource for obtaining PHICH and occupying to PHICH
Group position；Finally occupied according to system bandwidth, PHICH duration, PHICH resource size instruction information, control information
The resource that the resource group position acquisition PDCCH that the resource group position and PHICH that OFDM symbol number, PCFICH are occupied occupy is occupied
Group location information.By this realization method, the resource group position information of PDCCH occupancy can be obtained.
In the step S404 of the present embodiment, from the media access control of LTE system（MAC）Layer acquisition is multiple to be needed to carry out
The user equipment of blind Detecting（UE）MAC layer information, according to the Downlink Control Information of the multiple UE of MAC layer acquisition of information（DCI）Inspection
When surveying the grouping information in region, the mode in this that may be used carries out：First, MAC information is obtained from MAC, wherein MAC packets
It includes：Radio network temporary identifier（RNTI）Value, RNTI types and transmission mode；First is carried out to multiple UE according to RNTI types
Secondary grouping, wherein RNTI types include：Cell Radio Network Temporary Identifier/Identity, Cell-RNTI（C-RNTI）With semi-persistent scheduling cell-radio network
Temporary identifier（SPS C-RNTI）, further according to transmission mode to first time be grouped after obtain C-RNTI grouping in multiple UE and
Multiple UE in SPS C-RNTI groupings continue second of grouping, and the UE of multiple UE is obtained further according to the result being grouped twice
Grouping sheet, wherein UE grouping sheets include：The RNTI values that UE under each transmission mode should be used, finally according to RNTI values
Obtain the grouping information of the DCI detection zones of multiple UE in each UE grouping sheets.
It wherein, can when obtaining the grouping information of the DCI detection zones of multiple UE in each UE grouping sheets according to RNTI values
The search spaces DCI that multiple UE in UE groupings are calculated according to each UE grouping sheets with elder generation, then to the weight in the search spaces DCI
Multiple search space merges processing, finally obtains the grouping information of the DCI detection zones of multiple UE in each UE grouping sheets.
In this way, the Downlink Control Information of multiple UE can be obtained（DCI）The grouping information of detection zone.
In the step S406 of the present embodiment, according to point of the PDCCH resource group position informations occupied and DCI detection zones
When group information carries out DCI blind detection survey, the mode in this that may be used carries out：First the resource group position information that PDCCH is occupied is carried out
Physical resource mapping is solved, after acquisition PDCCH is mapped to the mapping relations of the search spaces DCI, so that it may to be combined according to mapping relations
DCI detection zone information carries out DCI blind detection survey.In this way, so that it may to complete the process that entire DCI blind detection is surveyed.
Fig. 5 is Downlink Control Information blind Detecting flow diagram according to the preferred embodiment of the invention, as shown in figure 5, should
Flow mainly includes the following steps that（Step S502- steps S508）：
Step S502 collects the UE relevant informations for needing to carry out blind Detecting, main RNTI values, the RNTI classes of UE for including UE
The information such as type and the transmission mode of UE；
Step S504 is grouped the UE relevant informations being collected into, and is divided first multiple UE according to RNTI types
Group, secondly, the progress according still further to transmission mode to multiple UE under CRNTI type groups, multiple UE under SPS CRNTI type groups
Grouping；
Step S506, to according to each transmission in CRNTI types and the UE grouping sheets of SPS CRNTI type packets acquisition
The corresponding RNTI values of pattern carry out DCI region of search（That is DCI detection zones）Operation, and between UE repeat DCI region of search into
Row merging treatment generates the grouping information table of the DCI region of search of each DCI type；
Step S508 carries out arrangement merging treatment to the grouping information table of DCI 1A region of search, obtains the final of DCI 1A
The DCI search domain information table of region of search grouping information table, other same DCI types carries out arrangement merging treatment, obtains other DCI
The final region of search grouping information table of type is combined according to the final region of search grouping information table of all DCI types and is obtained in advance
The resource group position information that the PDCCH arrived is occupied carries out DCI blind detection survey.
Certainly, row control information blind examination flow gauge shown in fig. 5 is only a kind of preferred embodiment, in practical applications,
It is not limited thereto, for example, it is also possible to realize as follows：
（1）LTE system control channel information relevant parameter is obtained, including the information that PBCH, PCFICH, PHICH are included,
These information are to carry out the prerequisite of PDCCH blind Detectings.
（2）To it is in need carry out PDCCH blind Detectings UE information be collected, in LTE system, multiple UE may locate
In different states, therefore, from the point of view of the process of UE access LTE system, each UE need to obtain respectively RARNTI,
A variety of RNTI such as TempCRNTI, CRNTI, SPS CRNTI.When UE complete access after, it is also possible to using different transmission modes into
Row data transmission, each transmission mode are also not exactly the same to the DCI types in requisition for detection, therefore, in transmission mode 1（I.e.
Single-antenna transmission transmission mode）, transmission mode 2（That is transmitting diversity transmission mode）With transmission mode 7（That is beamforming transmission mould
Formula）Under isotype, UE is needed to carry out the detection of DCI1A, DCI1, for transmission mode 3（That is Open-Loop Spatial Multiplexing transmission mode）,
UE is then needed to carry out the detection of DCI1A, DCI2A, and for transmission mode 4（That is Closed-Loop Spatial Multiplexing transmission mode）, need UE
Carry out the detection of DCI1A, DCI2.Therefore, in more UE systems, the relevant information of all UE should first be collected.It should be noted that
In LTE system, a variety of RNTI types can exist simultaneously, and a variety of transmission modes can also exist simultaneously.
（3）The UE information being collected into should be grouped first according to RNTI types, because different RNTI types need
It is not exactly the same to want search space.In LTE system, the search space corresponding to RARNTI is fixed；TempCRNTI
Used transmission mode is then the transmission mode of system default；CRNTI then needs to be grouped according to transmission mode.Grouping is pressed
It is carried out according to following manner：All UE are required for detection DCI1A, and all CRNTI are formed a table, obtain the grouping row of DCI1A
Table；Transmission mode 1,2,7 also needs to detection DCI1, and the UE that all transmission modes are 1,2,7 is formed a table, obtains DCI1's
Group list；Transmission mode 3 also needs to detection DCI2A, and the UE that all transmission modes are 3 is formed a table, obtains DCI2A's
Group list；Transmission mode 4 also needs to detection DCI2, and the UE that all transmission modes are 4 is formed a table, obtains point of DCI2
Groups List.After completing above-mentioned grouping, 6 lists can be obtained, respectively：RARNTI lists, TempCRNTI lists, CRNTI row
Table is divided into as DCI1A lists, DCI1 lists, DCI2A lists and DCI2 lists.
（4）Calculate each type（TempCRNTI, CRNTI and SPS CRNTI）UE under grouping is in each CCE degree of polymerization
Under Candidate Set, the UE group lists obtained according to previous step calculate in every list existing repeat search space between UE,
And merging treatment is carried out, final more final region of search grouping information tables of the available DCI of UE are formed, further according to all DCI types
The resource group position information that final region of search grouping information table combines the PDCCH got in advance to occupy carries out DCI blind detection survey.
Above-mentioned row control information blind examination flow measurement method is carried out with reference to Fig. 6 to preferred embodiment shown in Fig. 8 detailed
Description.It needs to explain, in the preferred embodiment, scene is as follows：8 UE are enabled to carry out blind examination in systems respectively, wherein 5
Access is completed in a UE, and 2 UE are just to have initiated to access, and 1 UE is in access procedure.
Referring to FIG. 6, Fig. 6 is the detail flowchart of Downlink Control Information blind Detecting according to the preferred embodiment of the invention,
As shown in fig. 6, the flow mainly includes the following steps that（Step S602- steps S614）：
Step S602, collect PBCH, PCFICH in include relevant information, first, can be obtained from PBCH system bandwidth,
PHICH duration, PHICH resource size indicate information；It can be obtained in the subframe by detection PCFICH channels and control information
The resource group position that the OFDM symbol number and PCFICH of occupancy occupy；PHICH occupancy can be obtained by detecting PHICH channels
Resource group position, finally according to information above UE can obtain PDCCH occupancy resource group position information carry out solution physical resource reflect
It penetrates；It is FDD to enable system operating mode, and bandwidth is equal to 20MHz, and eNodeB transmitting antenna numbers are that 2, CFI is equal to 2,
PHICHGroupNum is equal to 13, and it is subframe 0 to need the subframe numbers of blind examination, then can be by being calculated, and it is 50 that can use CCE number；
Step S604, the UE relevant parameters for needing to carry out blind examination are collected, are enabled：
UE1：RNTI types are CRNTI, and RNTI values are 50, transmission mode TM2；
UE2：RNTI types are CRNTI, and RNTI values are 51, transmission mode TM3；
UE3：RNTI types are CRNTI, and RNTI values are 52, transmission mode TM2；
UE4：RNTI types are CRNTI, and RNTI values are 53, transmission mode TM2；
UE5：RNTI types are CRNTI, and RNTI values are 54, transmission mode TM3；
UE6：RNTI types are TempCRNTI, and RNTI values are 60, transmission mode TM2；
UE7：RNTI types are RARNTI, and RNTI values are 6, transmission mode TM2；
UE8：RNTI types are RARNTI, and RNTI values are 7, transmission mode TM2.
UE is grouped according to the UE information of acquisition, is grouped first, in accordance with RNTI types：
UE queues 1：CRNTI queues, including UE1, UE2, UE3, UE4, UE5；
UE queues 2：TempCRNTI queues, including UE6；
UE queues 3：RARNTI queues, including UE7, UE8；
Step S606, continue to be grouped CRNTI UE queues, be grouped according to transmission mode, TM2 patterns need
The DCI types of detection are DCI1A types, DCI1 types；It is DCI1A types, DCI2A classes that TM3 patterns, which need the DCI types detected,
Type can be completed to be grouped, group result according to information above（Grouping sheet）It is as follows：
CRNTI UE queues 1：DCI1A, UE1, UE2, UE3, UE4, UE5；
CRNTIUE queues 2：DCI1, UE1, UE3, UE4；
CRNTI UE queues 3：DCI2A, UE2, UE5.
Step S608, the blind examination search space of multiple UE in each group is calculated according to above-mentioned grouping sheet, and carries out union
Processing, UE calculate the search space corresponding to different CCE set levels first（I.e. above-mentioned region of search）, it is defined as follows：
Wherein, 0, L-1, L ∈ { 1,2,4,8 } indicate that CCE set is horizontal, m=0 ..., M(L)- 1, M(L)Indicate that giving CCE gathers
Searching times under right level, NCCE, kIndicate the available CCE number of PDCCH in subframe k；
Public search space：Yk=0, the corresponding horizontal L=4 of the CCE degree of polymerization, 8；
The proprietary search spaces UE：Yk=(A·Yk- 1) modD, wherein Y-1=nRNTI≠ 0, A=39827, D=65537,nsIndicate timeslot number in a radio frames；
Horizontal, the searching times such as table 3 in public search space and UE dedicated search space for the different CCE degree of polymerization
It is shown：
The corresponding search Candidate Set tables of 3 difference CCE of table
From table 3 it can be seen that the search space of public search space and UE may be overlapped, both mapped to for existing
Public search space also maps to the DCI format of the search spaces UE（Such as DCI 0 and DCI 1A）For, UE needs to be traversed for institute
Some CCE set is horizontal, and is scanned in corresponding search space, through solution rate-matched, channel decoding, CRC descramblings with
And solution CRC processes and etc., carry out most M(L)Secondary blind Detecting.In view of base station end is big using the probability of 2CCE and 4CCE
In the probability using 8CCE and 1CCE, UE, can be according to the sequence of 2CCE, 4CCE, 8CCE, 1CCE when traversing CCE set levels
It carries out；
Step S610, in acquisition system each UE search space, at this point, referring to FIG. 7, Fig. 7 be according to the present invention it is excellent
Select the structural schematic diagram in the dedicated search space of 6 UE in the LTE system of embodiment, Fig. 7 and L1, L2, L4 hereinafter, L8 points
It does not indicate that different CCE set is horizontal, it is as follows to correspond to search spaces of the UE of listed data bit under the conditions of the corresponding degree of polymerization：
UE1：
L1：40、41、42、43、44、45
L2：30、32、34、36、38、40
L4：16、20
L8：32、40
UE2：
L1：17、18、19、20、21、22
L2：34、36、38、40、42、44
L4：12、16
L8：24、32
UE3：
L1：7、8、9、10、11、12
L2：14、16、18、20、22、24
L4：36、40
L8：24、32
UE4：
L1：47、48、49、0、1、2
L2：44、46、48、0、2、4
L4：12、16
L8：24、32
UE5：
L1：24、25、26、27、28、29
L2：48、0、2、4、6、8
L4：8、12
L8：16、24
UE6：
L1：38、39、40、41、42、43
L2：26、28、30、32、34、36
L4：0、4
L8：0、8
Step S612, the above result of calculation being handled, the search space repeated between UE carries out union processing, this
When, referring to FIG. 8, Fig. 8 is the structural representation in the dedicated search space after 6 UE merging according to the preferred embodiment of the invention
Figure, as shown in Figure 8：
L1：
0：UE4
1：UE4
2：UE4
7：UE3
8：UE3
9：UE3
10：UE3
11：UE3
12：UE3
17：UE2
18：UE2
19：UE2
20：UE2
21：UE2
22：UE2
24：UE5
25：UE5
26：UE5
27：UE5
28：UE5
29：UE5
38：UE6
39：UE6
40：UE1、UE6
41：UE1、UE6
42：UE1、UE6
43：UE1、UE6
44：UE1
45：UE1
47：UE4
48：UE4
49：UE4
L2：
0：UE4、UE5
2：UE4、UE5
4：UE4、UE5
6：UE5
8：UE5
14：UE3
16：UE3
18：UE3
20：UE3
22：UE3
24：UE3
26：UE6
28：UE6
30：UE1、UE6
32：UE1、UE6
34：UE1、UE2、UE6
36：UE1、UE2、UE6
38：UE1、UE2
40：UE1、UE2
42：UE2
44：UE2、UE4
46：UE4
48：UE4、UE5
L4：
0：UE6
4：UE6
8：UE5
12：UE2、UE4、UE5
16：UE1、UE2、UE4
20：UE1
36：UE3
40：UE3
L8：
0：UE6
8：UE6
16：UE5
24：UE2、UE3、UE4、UE5
32：UE1、UE2、UE3、UE4
40：UE1
Step S614, by arranging, the above DCI detection zones grouping sheet is finally obtained, most further according to all DCI types
The resource group position information that whole region of search grouping information table combines the PDCCH got in advance to occupy carries out DCI blind detection survey.
In above method flow, when carrying out blind examination to multiple UE, only detection is likely to occur the position of DCI, and is directed to
Same position there is a possibility that the case where multiple UE mappings, it is only necessary to the region once decoded, the operations such as rate-matched,
Different CRC is carried out to different UE and descrambles verification, reduces repetitive operation, improves detection efficiency.
The Downlink Control Information blind checking method provided using above-described embodiment is only examined when carrying out blind examination to multiple UE
Survey the position for being likely to occur DCI, it is only necessary to once be decoded to the band of position, the operations such as rate-matched solve existing
There are need to carry out multiple DCI blind detection survey when multiple UE to lead to expend that resource is more, wastes time longer ask in LTE system
Topic, and then reached and can largely reduce blind Detecting number, operation time, greatly improve the effect of operation efficiency, detection efficiency.
Fig. 9 is the structure diagram of Downlink Control Information blind Detecting device according to the ... of the embodiment of the present invention, and the device is to reality
The Downlink Control Information blind checking method that existing above-described embodiment provides, as shown in figure 9, the device mainly includes：Including：First obtains
Modulus block 10 is used for from long term evolution（LTE）The physical layer of system（PHY）Obtain Physical Downlink Control Channel（PDCCH）It occupies
Resource group position information；Second acquisition module 20 is connected to the first acquisition module 10, for being accessed from the media of LTE system
Control（MAC）Layer obtains multiple user equipmenies for needing to carry out blind Detecting（UE）MAC layer information, according to MAC layer acquisition of information
The Downlink Control Information of multiple UE（DCI）The grouping information of detection zone；Detection module 30 is connected to the second acquisition module 20,
The grouping information of resource group position information and DCI detection zones for being occupied according to PDCCH carries out DCI blind detection survey.
Figure 10 is the structure diagram of Downlink Control Information blind Detecting device according to the preferred embodiment of the invention, such as Figure 10 institutes
Show, in the device that the preferred embodiment provides：First acquisition module 10 may include：First acquisition unit 12, for passing through
To Physical Broadcast Channel（PBCH）It is detected and obtains system bandwidth, physical mixing retransmission indicating chanel（PHICH）Duration
And PHICH resource size indicates information；Second acquisition unit 14 is connected to first acquisition unit 12, for by physics
Control format indicates channel（PCFICH）It is detected and obtains the orthogonal frequency division multiplexing that control information occupies（OFDM）Symbolic number and
The resource group position that PCFICH is occupied；Third acquiring unit 16 is connected to second acquisition unit 14, for by PHICH into
Row detection obtains the resource group position that PHICH is occupied；4th acquiring unit 18 is connected to third acquiring unit 16, is used for basis
System bandwidth, PHICH duration, PHICH resource size instruction information, the OFDM symbol number of control information occupancy, PCFICH
The resource group position information that the resource group position acquisition PDCCH that the resource group position of occupancy and PHICH are occupied is occupied.
In the device that preferred embodiment provides, the second acquisition module 20 may include：5th acquiring unit 22, for from
MAC obtains MAC information, wherein MAC information includes：Radio network temporary identifier（RNTI）Value, RNTI types and transmission mould
Formula；First grouped element 24, is connected to the 5th acquiring unit 22, for multiple UE for the first time divide according to RNTI types
Group, wherein RNTI types include：Cell Radio Network Temporary Identifier/Identity, Cell-RNTI（C-RNTI）It is interim with semi-persistent scheduling cell-radio network
Mark（SPS C-RNTI）；Second packet unit 26 is connected to the first grouped element 24, is used for according to transmission mode to for the first time
Multiple UE in multiple UE and S-PS C-RNTI groupings in the C-RNTI groupings obtained after grouping continue second point
Group；6th acquiring unit 27 is connected to second packet unit 26, UE points for obtaining multiple UE according to the result being grouped twice
Group table, wherein UE grouping sheets include：The RNTI values that UE under each transmission mode should be used；7th acquiring unit 28, even
It is connected to the 6th acquiring unit 27, point of the DCI detection zones for obtaining multiple UE in each UE grouping sheets according to RNTI values
Group information.
Wherein, in practical applications, the 6th acquiring unit 27 may include：Computing unit 272, for according to each transmission
The corresponding RNTI of pattern calculates the search spaces DCI；Processing unit 274 is connected to computing unit 272, for the search spaces DCI
In repeat search space merge processing, obtain the DCI detection zones of multiple UE in each UE grouping sheets grouping letter
Breath.
In the device that preferred embodiment provides, detection module 30 may include：Obtaining unit 32, for being accounted for PDCCH
Resource group position information carries out solution physical resource mapping, obtains the mapping relations that PDCCH is mapped to the search spaces DCI；Inspection
Unit 34 is surveyed, obtaining unit 32 is connected to, for carrying out DCI blind detection survey according to mapping relations combination DCI detection zone information tables.
Figure 11 is according to the structure diagram of the Downlink Control Information blind Detecting device of another preferred embodiment of the present invention, such as
Shown in Figure 11, the device mainly includes with lower unit：
Main control unit is mainly used for collecting the relevant information after PBCH, PCFICH, PHICH are parsed, it is blind to configure more UE
The relevant parameter that information table generates is examined, and is responsible for the startup of the modules such as RNTI groupings.
RNTI information collection units are mainly used for collecting the user equipment information for needing to carry out PDCCH blind Detectings, including divide
The RNTI values of each user equipment of dispensing (UE), RNTI types, transmission mode etc., and will be sent to after relevant information arranging order
RNTI grouped elements.
RNTI grouped elements are mainly used for receiving the related letter of user equipment (UE) that RNTI information collection units send over
Breath, and according to RNTI types, the information such as transmission mode are grouped RNTI values, and the result after grouping are sent to UE and is searched
Rope space union computing unit.
The search spaces UE union computing unit is mainly used for receiving the grouped data that RNTI grouped elements send over, and
As unit of group, the search spaces UE are calculated separately, for overlapping search volume existing for UE in group, processing is merged, that is, counts
It calculates under each CCE degree of polymerization, each UE spatial candidates position needs the set of the UE detected, and operation result is sent to
More UE blind examinations parameter generating units.
More UE blind examinations parameter generating units are mainly used for receiving the union that the search spaces UE union computing unit sends over
Result of calculation, and according to RNTI types, DCI types, final arrange generates the available more UE blind examinations information tables of blind Detecting unit.
The Downlink Control Information blind Detecting device provided using above-described embodiment is only examined when carrying out blind examination to multiple UE
Survey the position for being likely to occur DCI, it is only necessary to once be decoded to the band of position, the operations such as rate-matched solve existing
There are need to carry out multiple DCI blind detection survey when multiple UE to lead to expend that resource is more, wastes time longer ask in LTE system
Topic, and then reached and can largely reduce blind Detecting number, operation time, greatly improve the effect of operation efficiency, detection efficiency.
It can be seen from the above description that the present invention realizes following technique effect：Blind examination is being carried out to multiple UE
When, only detection is likely to occur the position of DCI, and there is a possibility that the case where multiple UE map for same position, it is only necessary to right
The region is once decoded, the operations such as rate-matched, and is carried out different CRC to different UE and descrambled verification, is reduced
Repetitive operation simplifies the hardware complexity of blind Detecting, can largely reduce blind Detecting number, operation time to reach, substantially
Improve the effect of operation efficiency, detection efficiency.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be with different from shown in sequence execution herein
The step of going out or describing, either they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of Downlink Control Information blind checking method, which is characterized in that including：
The resource group position that physical downlink control channel PDCCH occupies is obtained from the physical layer PHY of long term evolution LTE system to believe
Breath；
The MAC layer of multiple user equipment (UE)s for needing to carry out blind Detecting is obtained from the media access control MAC layer of the LTE system
Information, according to the grouping information of the Downlink Control Information DCI detection zones of the multiple UE of MAC layer acquisition of information；
DCI blind detection is carried out according to the grouping information of the PDCCH resource group position informations occupied and the DCI detection zones
It surveys；
Wherein, multiple user equipment (UE)s for needing to carry out blind Detecting are obtained from the media access control MAC layer of the LTE system
MAC layer information, according to the grouping information of the Downlink Control Information DCI detection zones of the multiple UE of MAC layer acquisition of information,
Including：
The MAC layer information is obtained from the MAC layer, wherein the MAC layer information includes：Radio network temporary identifier RNTI
Value, RNTI types and transmission mode；
First time grouping is carried out to the multiple UE according to the RNTI types, wherein the RNTI types include：Cell is wireless
Network Temporary Identifier C-RNTI and semi-persistent scheduling Cell Radio Network Temporary Identifier/Identity, Cell-RNTI SPS C-RNTI；
Multiple UE in the C-RNTI groupings obtained after being grouped to first time according to the transmission mode the and SPSC-
Multiple UE in RNTI groupings continue second of grouping；
The UE grouping sheets of the multiple UE are obtained according to the result being grouped twice, wherein the UE grouping sheets include：Each is passed
The RNTI values that UE under defeated pattern should be used；
The grouping information of the DCI detection zones of multiple UE in each UE grouping sheets is obtained according to the RNTI values.
2. according to the method described in claim 1, it is characterized in that, obtaining physics from the physical layer PHY of long term evolution LTE system
The resource group position information that down control channel PDCCH is occupied, including：
By being detected acquisition system bandwidth to Physical Broadcast Channel PBCH, physical mixing retransmission indicating chanel PHICH continues
Time and PHICH resource size indicate information；
By being detected the orthogonal frequency division multiplexing for obtaining control information and occupying to Physical Control Format Indicator Channel PCFICH
The resource group position that OFDM symbol number and PCFICH are occupied；
By being detected the resource group position for obtaining PHICH and occupying to PHICH；
According to the system bandwidth, the PHICH duration, PHICH resource size instruction information, the control information
The resource group position acquisition that the resource group position and the PHICH that the OFDM symbol number of occupancy, the PCFICH are occupied occupy
The resource group position information that the PDCCH is occupied.
3. according to the method described in claim 1, it is characterized in that, being obtained according to the RNTI values more in each UE grouping sheets
The grouping information of the DCI detection zones of a UE, including：
The search spaces DCI of multiple UE in UE groupings are calculated according to each UE grouping sheets；
Processing is merged to the repeat search space in the search spaces DCI, obtains multiple UE in each UE grouping sheets
The DCI detection zones grouping information.
4. according to the method described in claim 3, it is characterized in that, according to the PDCCH occupy resource group position information and
The grouping information of the DCI detection zones carries out DCI blind detection survey, including：
Solution physical resource mapping is carried out to the PDCCH resource group position informations occupied, obtain the PDCCH be mapped to it is described
The mapping relations of the search spaces DCI；
According to the mapping relations DCI blind detection survey is carried out in conjunction with the DCI detection zones information.
5. a kind of Downlink Control Information blind Detecting device, which is characterized in that including：
First acquisition module is accounted for for obtaining physical downlink control channel PDCCH from the physical layer PHY of long term evolution LTE system
Resource group position information；
Second acquisition module multiple needs to carry out blind Detecting for obtaining from the media access control MAC layer of the LTE system
The MAC layer information of user equipment (UE), according to the Downlink Control Information DCI detection zones of the multiple UE of MAC layer acquisition of information
The grouping information in domain；
Detection module, for the grouping information according to the PDCCH resource group position information occupied and the DCI detection zones
Carry out DCI blind detection survey；
Second acquisition module includes：
5th acquiring unit, for obtaining the MAC layer information from the MAC layer, wherein the MAC layer information includes：Wirelessly
Network Temporary Identifier RNTI values, RNTI types and transmission mode；
First grouped element, for carrying out first time grouping to the multiple UE according to the RNTI types, wherein the RNTI
Type includes：Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI and semi-persistent scheduling Cell Radio Network Temporary Identifier/Identity, Cell-RNTI SPS C-
RNTI；
Second packet unit is more in the C-RNTI groupings for being obtained after being grouped to first time according to the transmission mode
Multiple UE in a UE and SPS C-RNTI groupings continue second of grouping；
6th acquiring unit, the UE grouping sheets for obtaining the multiple UE according to the result being grouped twice, wherein the UE points
Organizing table includes：The RNTI values that UE under each transmission mode should be used；
7th acquiring unit, the DCI detection zones for obtaining multiple UE in each UE grouping sheets according to the RNTI values
The grouping information in domain.
6. device according to claim 5, which is characterized in that first acquisition module includes：
First acquisition unit, for obtaining system bandwidth, physical mixed re-transmission by being detected to Physical Broadcast Channel PBCH
Indicate that channel PHICH duration and PHICH resource size indicate information；
Second acquisition unit, for being occupied by being detected acquisition control information to Physical Control Format Indicator Channel PCFICH
Orthogonal frequency division multiplex OFDM symbolic number and PCFICH occupy resource group position；
Third acquiring unit, for by being detected the resource group position for obtaining PHICH and occupying to PHICH；
4th acquiring unit, for being indicated according to the system bandwidth, the PHICH duration, the PHICH resource size
Information, the OFDM symbol number that the control information occupies, the resource group position of PCFICH occupancy and the PHICH are occupied
Resource group position acquisition described in PDCCH occupy resource group position information.
7. device according to claim 5, which is characterized in that the 6th acquiring unit includes：
Computing unit, for calculating the search spaces DCI according to the corresponding RNTI of each transmission mode；
Processing unit obtains each UE groupings for merging processing to the repeat search space in the search spaces DCI
The grouping information of the DCI detection zones of multiple UE in table.
8. device according to claim 7, which is characterized in that the detection module includes：
Obtaining unit, the resource group position information for being occupied to the PDCCH carries out solution physical resource and maps, described in acquisition
PDCCH is mapped to the mapping relations of the search spaces DCI；
Detection unit, for carrying out the DCI blind detection survey in conjunction with the DCI detection zones information table according to the mapping relations.
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Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103780343B (en) * | 2014-01-13 | 2017-02-15 | 重庆邮电大学 | Device and method for PHICH resource blind detection in SIB1 decoding in TD-LTE system |
| US10763939B2 (en) | 2014-05-15 | 2020-09-01 | Huawei Technologies Co., Ltd. | Base station, user equipment, and communication signal transmitting and receiving methods |
| WO2016004560A1 (en) | 2014-06-20 | 2016-01-14 | 华为技术有限公司 | Data transmission method and device |
| CN105493594B (en) * | 2014-08-01 | 2019-05-03 | 华为技术有限公司 | Transmission method, system, base station and the terminal of Downlink Control Information |
| CN105991218A (en) * | 2015-02-02 | 2016-10-05 | 中国电信股份有限公司 | PDCCH blind detection method and system, and terminal |
| CN104683069B (en) * | 2015-02-13 | 2018-04-27 | 大唐联仪科技有限公司 | A kind of physical downlink control channel PDCCH blind checking method and system |
| CN106455069B (en) | 2015-08-11 | 2022-02-01 | 中兴通讯股份有限公司 | Method and device for sending and receiving downlink control channel |
| US10575324B2 (en) * | 2016-11-04 | 2020-02-25 | Qualcomm Incorporated | Efficient blind decoding of a search space |
| CN108259123B (en) * | 2016-12-28 | 2020-02-04 | 深圳市中兴微电子技术有限公司 | Parameter blind detection method and system |
| US10757581B2 (en) * | 2017-03-22 | 2020-08-25 | Mediatek Inc. | Physical downlink control channel design for NR systems |
| CN116133098A (en) * | 2017-03-24 | 2023-05-16 | 中兴通讯股份有限公司 | Transmission method and device of physical downlink control channel |
| CN109089316B (en) | 2017-06-14 | 2020-11-17 | 华为技术有限公司 | Scheduling method and related device |
| CN112867165A (en) * | 2017-07-06 | 2021-05-28 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for dynamic scheduling |
| CN110247730B (en) * | 2018-03-09 | 2020-10-23 | 华为技术有限公司 | Blind detection method and device based on polarization code |
| CN110391867B (en) * | 2018-04-16 | 2022-06-21 | 维沃移动通信有限公司 | DCI detection method, DCI sending method, terminal and base station |
| CN111436101B (en) * | 2019-01-11 | 2024-06-04 | 华为技术有限公司 | Communication method and device |
| CN116865912B (en) * | 2023-09-04 | 2023-11-03 | 芯迈微半导体(上海)有限公司 | Method and system for blind detection control and early stopping of physical layer downlink control channel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101730139A (en) * | 2008-11-03 | 2010-06-09 | 夏普株式会社 | Descending control channel assignment and blind test method |
| CN101883369A (en) * | 2010-07-06 | 2010-11-10 | 新邮通信设备有限公司 | Blind detection method |
| CN101932024A (en) * | 2009-06-24 | 2010-12-29 | 华为技术有限公司 | Downlink control information transmitting method and device |
| WO2011035495A1 (en) * | 2009-09-28 | 2011-03-31 | 华为技术有限公司 | Blind detection method and device for a physical downlink control channel |
-
2012
- 2012-05-29 CN CN201210171355.8A patent/CN103457688B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101730139A (en) * | 2008-11-03 | 2010-06-09 | 夏普株式会社 | Descending control channel assignment and blind test method |
| CN101932024A (en) * | 2009-06-24 | 2010-12-29 | 华为技术有限公司 | Downlink control information transmitting method and device |
| WO2011035495A1 (en) * | 2009-09-28 | 2011-03-31 | 华为技术有限公司 | Blind detection method and device for a physical downlink control channel |
| CN101883369A (en) * | 2010-07-06 | 2010-11-10 | 新邮通信设备有限公司 | Blind detection method |
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