CN102186251B - The transmission method of Downlink Control Information and system - Google Patents

The transmission method of Downlink Control Information and system Download PDF

Info

Publication number
CN102186251B
CN102186251B CN201110111386.XA CN201110111386A CN102186251B CN 102186251 B CN102186251 B CN 102186251B CN 201110111386 A CN201110111386 A CN 201110111386A CN 102186251 B CN102186251 B CN 102186251B
Authority
CN
China
Prior art keywords
pdcch
information
subframe
control information
time
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
Application number
CN201110111386.XA
Other languages
Chinese (zh)
Other versions
CN102186251A (en
Inventor
吴欣
戴博
左志松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to CN201110111386.XA priority Critical patent/CN102186251B/en
Publication of CN102186251A publication Critical patent/CN102186251A/en
Priority to PCT/CN2012/072556 priority patent/WO2012146095A1/en
Application granted granted Critical
Publication of CN102186251B publication Critical patent/CN102186251B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The invention provides transmission method and the system of a kind of Downlink Control Information, be applied to LTE A system, said method includes: base station sends Downlink Control Information to UE by PDCCH in subframe；Wherein, PDCCH includes: main PDCCH and from PDCCH, base station sends the information of main PDCCH on the first time-frequency location, base station sends the information from PDCCH on the second time-frequency location, the information of main PDCCH includes for instruction from the instruction information of PDCCH, includes the schedule information for dispatching physical uplink and/or DSCH Downlink Shared Channel from the information of PDCCH.The technical scheme provided according to the present invention, it is ensured that systematic function when more users access, and to some extent solve the interference problem between different base station.

Description

The transmission method of Downlink Control Information and system
Technical field
The present invention relates to the communications field, in particular to transmission method and the system of a kind of Downlink Control Information.
Background technology
Radio frames (radio frame) in Long Term Evolution (Long Term Evolution, referred to as LTE) system includes frequency Point duplex (Frequency Division Duplex, referred to as FDD) pattern and time division duplex (Time Division Duplex, Referred to as TDD) frame structure of pattern.The frame structure of fdd mode, as it is shown in figure 1, one 10 milliseconds (ms') is wireless Frame is by 20 a length of 0.5ms, and time slot (slot) composition of numbering 0～19, time slot 2i and 2i+1 forms a length of 1ms Subframe (sub frame) i.The frame structure of tdd mode, as in figure 2 it is shown, the radio frames of a 10ms is a length of by two 5ms field (half frame) composition, a field includes the subframe of 5 a length of 1ms, subframe i be defined as 2 long Time slot 2i and 2i+1 for 0.5ms.In above two frame structure, for standard cyclic prefix (Normal Cyclic Prefix, Referred to as Normal CP), a time slot comprises the symbol of 7 a length of 66.7 microseconds (us), wherein first symbol The a length of 5.21us of CP, a length of 4.69us of remaining 6 symbol；For extended cyclic prefix (Extended Cyclic Prefix, referred to as Extended CP), a time slot comprises 6 symbols, and the CP length of all symbols is 16.67us.
The version number of LTE corresponds to R8 (Release 8), and its version number increasing version corresponding is R9 (Release 9), And for LTE-Advance from now on, its version number is just for R10 (Release 10).Defined in LTE following three kinds descending Physical control channel: physical down control format instruction channel (Physical Control Format Indicator Channel, letter It is referred to as PCFICH)；Physical hybrid automatic repeat request indicator channel (Physical Hybrid Automatic Retransmission Request Indicator Channel, referred to as PHICH)；Physical Downlink Control Channel (Physical Downlink Control Channel, referred to as PDCCH).
Wherein, the information of PCFICH carrying transmits the OFDM of PDCCH in a subframe for instruction The number of (Orthogonal Frequency Division Multiplexing, referred to as OFDM) symbol, in the first of subframe Sending in individual OFDM symbol, place frequency location is determined by system descending bandwidth and cell ID (Identity, referred to as ID).
PHICH is for carrying acknowledgement/non-acknowledgement (ACK/NACK) feedback information of uplink transmission data.PHICH Number, time-frequency location can be by Physical Broadcast Channel (the Physical Broadcast of the descending carrier at PHICH place Channel, referred to as PBCH) in system message and community ID determine.
PDCCH controls information (Downlink Control Information, referred to as DCI) for bearing downlink, including: Uplink and downlink schedule information, and uplink power control information.The form (DCI format) of DCI is divided into following several: DCI format 0、DCI format 1、DCI format 1A、DCI format 1B、DCI format 1C、DCI format 1D、 DCI format 2, DCI format 2A, DCI format 3 and DCI format 3A etc.；Wherein:
DCI format 0 is used for indicating Physical Uplink Shared Channel, and (Physical Uplink Shared Channel is referred to as PUSCH) scheduling；
DCI format 1, DCI format 1A, DCI format 1B, DCI format 1C, DCI format 1D are used for one The different mode of individual PDSCH code word scheduling；
DCI format 2, DCI format 2A, DCI format 2B are for the different mode of space division multiplexing；
DCI format 3, DCI format 3A for Physical Uplink Control Channel (Physical Uplink Control Channel, Referred to as PUCCH) and the different mode of power control instruction of PUSCH.
The physical resource that Physical Downlink Control Channel (PDCCH) transmits is to control channel element (Control Channel Element, referred to as CCE) it is unit, the size of a CCE is 9 resource element group (Resource Element Group, referred to as REG), i.e. 36 resource elements (Resource Element), PDCCH may take 1, 2,4 or 8 CCE.For taking the these four PDCCH size of 1,2,4,8 CCE, use tree-shaped gathering Closing (Aggregation), the PDCCH i.e. taking 1 CCE can be from the beginning of any CCE position；Take 2 CCE PDCCH from the beginning of even number CCE position；The PDCCH taking 4 CCE opens from the CCE position of the integral multiple of 4 Begin；Take the PDCCH of 8 CCE from the beginning of the CCE position of the integral multiple of 8.
Each polymerization rank (Aggregation level) defines a search volume (Search space), including public (common) search volume and the search of subscriber equipment (UE, User Equipment) proprietary (UE-Specific) are empty Between.The CCE number of whole search volume is by the OFDM symbol shared by the control zone of PCFICH instruction in each descending sub frame The group number of count and PHICH determines.UE presses the DCI format of residing transmission mode to all of possible in search volume PDCCH code check carries out blind Detecting.
In kth subframe, the control territory of carrying PDCCH is 0 to N by suite numberCCE, kThe N of-1CCE, kIndividual CCE Constitute.UE should be at each non-discontinuous reception (non-Discontinuous Reception, referred to as non-DRX) Subframe detects the PDCCH of one group of candidate to obtain control information, and detection refers to according to all DCI format to be detected group Interior PDCCH is decoded.Need the candidate PDCCH (PDCCH candidate) of detection in the way of search volume Definition, to polymerization grade (aggregation level) L ∈ 1,2,4,8}, search volume By one group of candidate PDCCH (PDCCH candidate) defines.Search volume Corresponding to middle candidate PDCCH (PDCCH candidate) m CCE be defined by the formula:
Wherein, i=0 ..., L-1, m=0 ..., M(L)-1, M(L)For search volume In candidate PDCCH to be checked The number of (PDCCH candidate).
To public search space (common search space), Yk=0, L take 4 and 8.
Search volume proprietary to UE (UE-specific search space), L takes 1,2,4 and 8.
Yk=(A Yk-1) modD,
Wherein Y-1=nRNTI≠ 0, A=39827, D=65537, nsIt it is the time slot in a radio frames Number.nRNTIFor corresponding RNTI (Radio Network Temporary Identifier).
UE should detect each public search space that aggregation level is 4 and 8, and aggregation level It is that each proprietary search volume of UE of 1,2,4,8, public search space and the proprietary search volume of UE can be overlapping. Concrete detection number of times and corresponding search volume are as shown in table 1:
Table 1
UE is arranged to based on following a kind of transmission mode by high-level signaling semi-static (semi-statically) (transmission mode), comes according to the instruction of the PDCCH of the search volume of subscriber equipment proprietary (UE-Specific) Receive PDSCH data to transmit:
Pattern 1: single antenna port；Port 0 (Single-antenna port；port 0)
Pattern 2: launch diversity (Transmit diversity)
Pattern 3: Open-Loop Spatial Multiplexing (Open-loop spatial multiplexing)
Pattern 4: Closed-Loop Spatial Multiplexing (Closed-loop spatial multiplexing)
Pattern 5: multi-user's multiple-input and multiple-output (Multi-user MIMO)
Pattern 6: closed loop Rank=1 precoding (Closed-loop Rank=1precoding)
Mode 7: single antenna port；Port 5 (Single-antenna port；port 5)
If UE is set to Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Cell Radio Network Temporary by high level Identifier, referred to as C-RNTI) cyclic redundancy check (CRC) (CRC, Cyclical Redundancy Check) that scrambles comes Carry out PDCCH decoding, then UE should be according to the incompatible decoding PDCCH of the respective sets defined in table 2 and all relevant PDSCH:
Table 2
Owing to senior Long Term Evolution (LTE-A) system is required to access LTE user, so its operational frequency bands needs to cover mesh , the most there is not the spectral bandwidth of assignable continuous 100MHz in front LTE frequency band in this frequency range, so LTE-A needs An immediate problem to be solved is by several distributions continuous component carrier frequency (frequency spectrum) (Component on different frequency bands Carrier) use carrier aggregation (Carrier Aggregation) technology aggregation to get up, form the 100MHz that LTE-A can use Bandwidth.I.e. for the frequency spectrum after assembling, it is divided into n component carrier frequency (frequency spectrum), the frequency in each component carrier frequency (frequency spectrum) Spectrum is continuous print.
In the future version Release 11 of LTE-A, the Requirement Increases accessed due to user, original physical down controls letter Road PDCCH resource will be insufficient for new version requirement.Meanwhile, at heterogeneous network (Heterogeneous Networks) Scene under, owing to different base station type has stronger interference, macro base station (Macro eNodeB) is to micro-base station (Pico) Interference problem and Home eNodeB (Home eNodeB) to macro base station (Macro eNodeB) interference problem need obtain very Good solution.Therefore, open up a new PDCCH resource and will be for solving the effective scheme of the problems referred to above.At present, right How to determine above-mentioned new PDCCH resource, also not scheme and definition accurately, thus make troubles to reality application.
Summary of the invention
For the Requirement Increases accessed due to user in correlation technique, original physical downlink control channel PDCCH resource will not The problem being sufficient for new version requirement, the invention provides transmission method and the system of a kind of Downlink Control Information, to solve At least one the problems referred to above.
According to an aspect of the invention, it is provided the transmission method of a kind of Downlink Control Information.
The transmission method of the Downlink Control Information according to the present invention, is applied to lte-a system, including: base station is passed through in subframe PDCCH sends Downlink Control Information to UE；Wherein, described PDCCH includes: main PDCCH and from PDCCH, institute Stating base station and send the information of described main PDCCH on the first time-frequency location, described base station sends described on the second time-frequency location From the information of PDCCH, the information of described main PDCCH includes for indicating described from the instruction information of PDCCH, described The schedule information for dispatching physical uplink and/or DSCH Downlink Shared Channel is included from the information of PDCCH.
According to a further aspect in the invention, it is provided that the transmission system of a kind of Downlink Control Information.
The transmission system of the Downlink Control Information according to the present invention, is applied to lte-a system, including: base station, in subframe On send Downlink Control Information by PDCCH；UE, is used for receiving described Downlink Control Information；Wherein, described PDCCH Including: main PDCCH with from PDCCH, the information of described main PDCCH sends on the first time-frequency location, described from The information of PDCCH sends on the second time-frequency location, and the information of described main PDCCH includes for indicating described from PDCCH Instruction information, the described information from PDCCH includes the schedule information for dispatching physical uplink and/or DSCH Downlink Shared Channel.
By the present invention, base station sends the information of main PDCCH on the first time-frequency location of subframe, and base station is the second of subframe Sending the information from PDCCH on time-frequency location, the information of main PDCCH includes for instruction from the instruction information of PDCCH, Include the schedule information for dispatching uplink and/or DSCH Downlink Shared Channel from the information of PDCCH, solve in correlation technique due to The Requirement Increases that user accesses, original physical downlink control channel PDCCH resource will be insufficient for new version requirement Problem, and then can ensure that systematic function when more users access, and to some extent solve doing between different base station Disturb problem.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, and the present invention shows Meaning property embodiment and explanation thereof are used for explaining the present invention, are not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the frame structure schematic diagram of the fdd mode according to correlation technique；
Fig. 2 is the frame structure schematic diagram of the tdd mode according to correlation technique；
Fig. 3 is the schematic diagram of the transmission method of Downlink Control Information according to embodiments of the present invention；
Fig. 4 is the structured flowchart of the transmission system of Downlink Control Information according to embodiments of the present invention；
Fig. 5 is the structured flowchart of the transmission system of Downlink Control Information according to the preferred embodiment of the invention.
Detailed description of the invention
Below with reference to accompanying drawing and describe the present invention in detail in conjunction with the embodiments.It should be noted that in the case of not conflicting, Embodiment in the application and the feature in embodiment can be mutually combined.
Fig. 3 is the schematic diagram of the transmission method of Downlink Control Information according to embodiments of the present invention.As it is shown on figure 3, this descending control The transmission method of information processed, is applied to lte-a system, including following process: base station controls letter by physical down in subframe Road (PDCCH) sends Downlink Control Information to subscriber equipment (UE)；Wherein, PDCCH includes: main PDCCH and from PDCCH, base station sends the information of main PDCCH on the first time-frequency location of subframe, and base station is at the second time-frequency location of subframe Upper transmission is from the information of PDCCH, and the information of main PDCCH includes for instruction from the instruction information of PDCCH, from PDCCH Information include the schedule information for dispatching physical uplink and/or DSCH Downlink Shared Channel.
In correlation technique, in the future version Release 11 of LTE-A, the Requirement Increases accessed due to user, original thing Reason down control channel PDCCH resource will be insufficient for new version requirement.Use said method, for LTE-Advance In system, hypotactic PDCCH carries out relevant design, it is ensured that systematic function when more users access, and certain journey The interference problem solved between different base station of degree.
Preferably, first corresponding for the main PDCCH time-frequency location of above-mentioned subframe is: the first area of first time slot of subframe, Or the first area of first time slot of subframe, wherein, the Downlink Control Information that the first time-frequency location sends is for being allocated to subframe Downlink Control Information；Or, first corresponding for the main PDCCH time-frequency location of subframe is: second time slot of subframe, its In, the Downlink Control Information that the first time-frequency location sends is the Downlink Control Information being allocated to next subframe.
Preferably, above-mentioned subframe from the second corresponding for PDCCH time-frequency location be: the first area of first time slot of subframe, Or the second area of first time slot of subframe, or second time slot of subframe, or the second of first time slot of subframe Individual region and second time slot, wherein, the Downlink Control Information that the second time-frequency location sends is the descending control letter being allocated to subframe Breath；Or, subframe from the second corresponding for PDCCH time-frequency location be: second time slot of subframe, wherein, the second time-frequency The Downlink Control Information that position sends is the Downlink Control Information being allocated to next subframe.
Wherein, the first area of above-mentioned first time slot is in first time slot, the region at the PDCCH place of base station configuration； The second area of first time slot is in first time slot, the region at the PDSCH place of base station configuration.
Preferably, above-mentioned instruction information can include at least one of:
From the positional information shared by PDCCH, wherein, positional information includes one or more of: from PDCCH place Time slot position information；Positional information from the CCE at PDCCH place；PRB index from PDCCH place；
From the modulation coding mode of PDCCH；
From the transmission mode of PDCCH；
From the load of PDCCH；
From the demodulated reference signal DMRS antenna end slogan of PDCCH；
From the DMRS scrambling code identification of PDCCH；
Identify from the DMRS number of layers of PDCCH；
From the carrier wave sign of PDCCH；
From the polymerization grade of PDCCH.
During being preferable to carry out, above-mentioned first and second time-frequency location, can determine in the way of employing is predetermined, it is also possible to by height Layer signaling notifies that UE is which kind of time-frequency location used.That is, UE determines the first and second time-frequency location according to predetermined way； Or UE determines the first and second time-frequency location by the high-level signaling received.
Preferably, under carrier aggregation scene, above-mentioned for indicating the instruction information from PDCCH to include: main PDCCH refers to Show on a Serving cell or multiple Serving cell from the schedule information of PDCCH；Above-mentioned for dispatching physical uplink and/or descending Share channel schedule information include: from PDCCH instruction one Serving cell or multiple Serving cell PDSCH and/or The schedule information of PUSCH.In practice, above-mentioned Serving cell is alternatively referred to as component carrier.
Preferably, send in base station before the information of PDCCH on the second time-frequency location, it is also possible to include following process: Corresponding for all or part of Serving cell Downlink Control Information comprised from PDCCH is carried out combined coding, wherein, combines volume Code is for merge into one or more DCI format by multiple descending control information format DCI format.
Processed by above-mentioned combined coding, it is possible to reduce the blind check number of times of PDCCH and the blind check blocking rate of reduction PDCCH, The Performance And Reliability of raising system.
Preferably, above-mentioned corresponding for all or part of Serving cell Downlink Control Information comprised from PDCCH is combined Coding can include that one below processes:
(1) corresponding for all or part of Serving cell uplink authorization information comprised from PDCCH is carried out combined coding, and will The downstream grants information comprised from PDCCH that all or part of Serving cell is corresponding carries out combined coding；
(2) uplink authorization information comprised from PDCCH corresponding for all or part of Serving cell and downstream grants information are total to With carrying out combined coding.
Preferably, before base station sends the information of main PDCCH on the first time-frequency location of subframe, it is also possible to include following place Reason: the Downlink Control Information that main PDCCH corresponding for all or part of Serving cell comprises is carried out combined coding, wherein, connection Conjunction is encoded to multiple DCI format are merged into one or more DCI format.
Preferably, above-mentioned the Downlink Control Information that main PDCCH corresponding for all or part of Serving cell comprises is carried out associating volume Code can include that one below processes:
(1) by main PDCCH corresponding for all or part of partial service community, award for up from PDCCH of instruction The Downlink Control Information of power information (UL Grant) carries out combined coding, and by master corresponding for all or part of Serving cell In PDCCH, the Downlink Control Information for instruction downstream grants information (DL Grant) from PDCCH carries out associating volume Code.
(2) by main PDCCH corresponding for all or part of Serving cell, for up from PDCCH of instruction and under The Downlink Control Information of row authorization message carries out combined coding jointly.
Preferably, base station sends the information of main PDCCH on the first time-frequency location of subframe and may further include: base station leads to Cross the Downlink Control Information notice UE that main PDCCH is comprised by high-level signaling, SIBx signaling or broadcast.
Preferably, the Downlink Control Information that main PDCCH comprises includes at least one of:
Positional information shared by main PDCCH, wherein, above-mentioned positional information includes at least one of: from PDCCH institute Time slot position information, from the positional information of the control channel element CCE at PDCCH place, from PDCCH place PRB indexes；
The modulation coding mode of main PDCCH；
The transmission mode of main PDCCH；
The load of main PDCCH；
The demodulated reference signal DMRS antenna end slogan of main PDCCH；
The DMRS scrambling code identification of main PDCCH；
The DMRS number of layers mark of main PDCCH；
The carrier wave sign of main PDCCH；
The polymerization grade of main PDCCH.
Preferably, base station sends Downlink Control Information to after UE, at receiving terminal, it is also possible to include following process:
Process one: UE main PDCCH is detected；
Wherein, for publicly-owned search volume, UE carries out detection and includes one below main PDCCH:
(1) transmission mode information that UE configures according to base station, detects two kinds on the PDCCH time-frequency location of base station configuration and bears Carry the descending control information format of size；
(2) UE detection is from the descending control information format of the schedule information load of PDCCH, or, UE detection from PDCCH1 and the descending control information format of the schedule information load from PDCCH2, wherein, from PDCCH, from The mode that PDCCH1 and the schedule information load from PDCCH2 use predefined mode or high-level signaling to notify is true Fixed, candidate's PDCCH number of the polymerization grade of UE detection keeps predetermined number constant；
(3) UE obtains the information of PDCCH according to the notice of high-level signaling；
Wherein, it is used for indicating physics dispatch of down going sharing channel information from PDCCH1, from PDCCH2 for instruction physically Row shares channel scheduling information；Or, it is used for indicating physical uplink shared channel scheduling information from PDCCH1, from PDCCH2 For indicating physics dispatch of down going sharing channel information.
Wherein, search volume proprietary for user, UE carries out detection to main PDCCH and includes: UE detects from PDCCH's The descending control information format of schedule information load, or, UE detection is believed from PDCCH1 and the scheduling from PDCCH2 The descending control information format of breath load, wherein, from PDCCH, believes from PDCCH1 and the scheduling from PDCCH2 Breath load uses the mode of predefined mode or high-level signaling notice to determine, the candidate of the polymerization grade of UE detection PDCCH number keeps predetermined number constant, or increases the candidate of one or more polymerization grade in predetermined number PDCCH number；
Wherein, it is used for indicating physics dispatch of down going sharing channel information from PDCCH1, from PDCCH2 for instruction physically Row shares channel scheduling information；Or, it is used for indicating physical uplink shared channel scheduling information from PDCCH1, from PDCCH2 For indicating physics dispatch of down going sharing channel information.
It is described below in conjunction with three kinds of modes.
Mode one
For publicly-owned search volume, the transmission mode information that UE configures according to base station, at the PDCCH time-frequency location of base station configuration The DCI format of upper two kinds of loads of blind Detecting；
Search volume proprietary for user, UE carries out blind Detecting and includes one below main PDCCH:
(1) a kind of DCI format X of UE detection, wherein, the load of DCI format X use predefined mode or The mode of high-level signaling notice determines, candidate's PDCCH number of the polymerization grade of UE detection keeps predetermined number constant, or Predetermined number increases candidate's PDCCH number of each polymerization grade.
Such as, { candidate's PDCCH number of 1,2,4,8} is respectively { 6,6,2,2}, or increase to the polymerization grade of detection Candidate's PDCCH number of each polymerization grade, polymerization grade be candidate's PDCCH number of 1,2,4,8} be respectively 6+A, 6+B, 2+C, 2+D}, wherein A, B, C and D are positive integer, and A+B+C+D is less than or equal to 16 or less than or equal to 32.
(2) UE detects two kinds of DCI format X1 and X2, and wherein, the load of DCI format X1 and X2 uses pre- The mode of the mode of definition or high-level signaling notice determines, candidate's PDCCH number of the polymerization grade of UE detection keeps predetermined Number is constant, or increases candidate's PDCCH number of each polymerization grade in predetermined number.
Such as, { candidate's PDCCH number of 1,2,4,8} is respectively { 6,6,2,2}, or increase to the polymerization grade of detection Candidate's PDCCH number of each polymerization grade, polymerization grade be candidate's PDCCH number of 1,2,4,8} be respectively 6+A, 6+B, 2+C, 2+D}, wherein A, B, C and D are positive integer, and A+B+C+D is less than or equal to 16 or less than or equal to 32.
Mode two
For publicly-owned search volume, a kind of DCI format X of UE detection, or, UE detect two kinds of DCI format X1 and X2, wherein, the mode that DCI format X, X1 and X2 load uses predefined mode or high-level signaling to notify is true Fixed, candidate's PDCCH number of the polymerization grade of UE detection keeps predetermined number constant；Such as, the polymerization grade of detection be 4, Candidate's PDCCH number of 8} is respectively { 2,4}.
Search volume proprietary for user, UE carries out blind Detecting and includes one below main PDCCH:
(1) a kind of DCI format X of UE detection, wherein, the load of DCI format X use predefined mode or The mode of high-level signaling notice determines, candidate's PDCCH number of the polymerization grade of UE detection keeps predetermined number constant, or Predetermined number increases candidate's PDCCH number of each polymerization grade.
Such as, { candidate's PDCCH number of 1,2,4,8} is respectively { 6,6,2,2}, or increase to the polymerization grade of detection Candidate's PDCCH number of each polymerization grade, polymerization grade be candidate's PDCCH number of 1,2,4,8} be respectively 6+A, 6+B, 2+C, 2+D}, wherein A, B, C and D are positive integer, and A+B+C+D is less than or equal to 16 or less than or equal to 32.
(2) UE detects two kinds of DCI format X1 and X2, and wherein, the load of DCI format X1 and X2 uses pre- The mode of the mode of definition or high-level signaling notice determines, candidate's PDCCH number of the polymerization grade of UE detection keeps predetermined Number is constant, or increases candidate's PDCCH number of each polymerization grade in predetermined number.
Such as, { candidate's PDCCH number of 1,2,4,8} is respectively { 6,6,2,2}, or increase to the polymerization grade of detection Candidate's PDCCH number of each polymerization grade, polymerization grade be candidate's PDCCH number of 1,2,4,8} be respectively 6+A, 6+B, 2+C, 2+D}, wherein A, B, C and D are positive integer, and A+B+C+D is less than or equal to 16 or less than or equal to 32.
Mode three
For publicly-owned search volume, UE obtains the information of PDCCH according to the notice of high-level signaling；
Search volume proprietary for user, UE carries out blind Detecting and includes one below main PDCCH:
(1) a kind of DCI format X of UE detection, wherein, the load of DCI format X use predefined mode or The mode of high-level signaling notice determines, candidate's PDCCH number of the polymerization grade of UE detection keeps predetermined number constant, or Predetermined number increases candidate's PDCCH number of each polymerization grade.
Such as, { candidate's PDCCH number of 1,2,4,8} is respectively { 6,6,2,2}, or increase to the polymerization grade of detection Candidate's PDCCH number of each polymerization grade, polymerization grade be candidate's PDCCH number of 1,2,4,8} be respectively 6+A, 6+B, 2+C, 2+D}, wherein A, B, C and D are positive integer, and A+B+C+D is less than or equal to 28 or less than or equal to 44.
(2) UE detects two kinds of DCI format X1 and X2, and wherein, the load of DCI format X1 and X2 uses pre- The mode of the mode of definition or high-level signaling notice determines, candidate's PDCCH number of the polymerization grade of UE detection keeps predetermined Number is constant, or increases candidate's PDCCH number of each polymerization grade in predetermined number.
Such as, { candidate's PDCCH number of 1,2,4,8} is respectively { 6,6,2,2}, or increase to the polymerization grade of detection Candidate's PDCCH number of each polymerization grade, polymerization grade be candidate's PDCCH number of 1,2,4,8} be respectively 6+A, 6+B, 2+C, 2+D}, wherein A, B, C and D are positive integer, and A+B+C+D is less than or equal to 12 or less than or equal to 28.
It should be noted that DCI format X is for representing the schedule information from PDCCH；DCI format X1 and X2 is respectively For representing from PDCCH1 and the schedule information from PDCCH2, it is used for representing that Physical Downlink Shared Channel is adjusted from PDCCH1 Degree information, is used for representing physical uplink shared channel scheduling information from PDCCH2；Or from PDCCH1 for representing physically Row shares channel scheduling information, is used for representing Physical Downlink Shared Channel schedule information from PDCCH2.
It should be noted that above-mentioned publicly-owned search volume contains front 16 control channel elements of the first time-frequency location.User is special The control channel element having search volume to be the first time-frequency location.
Preferably, above-mentioned UE carries out detection and includes but not limited to following process main PDCCH: under the scene of multi-carrier polymerizing, Publicly-owned search volume on main Serving cell is only detected by UE.
Process two: UE from main PDCCH, obtain the instruction information from PDCCH；
Process three: UE according to instruction information by obtaining the up and/or descending common of all or part of Serving cell from PDCCH Enjoy the schedule information of channel.
Above-mentioned preferred implementation is described in detail below in conjunction with three embodiments.
Embodiment one:
In LTE-Advance system, in base station end, first time-frequency location and the second time-frequency location of subframe send under physics Row controls channel information.Wherein, the Physical Downlink Control Channel that above-mentioned first time-frequency location is corresponding is referred to as main PDCCH, when second Frequently the Physical Downlink Control Channel that position is corresponding is referred to as from PDCCH.
Above-mentioned first time-frequency location refers to the region at Physical Downlink Control Channel (PDCCH) place that base station configures, and its time domain accounts for Some OFDM symbol numbers are the indicated value of Physical Control Format Indicator Channel (PCFICH), and original position is each subframe First OFDM symbol.
Above-mentioned second time-frequency location refers to the region at Physical Downlink Shared Channel (PDSCH) place that base station configures, and its time domain accounts for The number of symbols that some OFDM symbol numbers are occupied less than or equal to DSCH Downlink Shared Channel, original position is the n-th of subframe OFDM symbol, above-mentioned n adds 1 equal to the indicated value of the Physical Control Format Indicator Channel (PCFICH) of subframe.
The instruction information of above-mentioned main PDCCH comprises one or more from the following message of PDCCH:
From the time-frequency location (including resource allocation type and resource time-frequency location information) shared by PDCCH；
From the time slot position information at PDCCH place；
From the modulation coding mode of PDCCH；
From the transmission mode of PDCCH；
From the load of PDCCH；
From demodulated reference signal (DMRS) the antenna end slogan of PDCCH；
From demodulated reference signal (DMRS) scrambling code identification of PDCCH；
Identify from demodulated reference signal (DMRS) number of layers of PDCCH；
From the carrier wave sign of PDCCH；
From the polymerization grade of PDCCH.
Above-mentioned transmission, from second time-frequency location of PDCCH, can determine, it is also possible to come by high-level signaling in the way of employing is predetermined Notice UE is which kind of time-frequency location used.
Alternatively, above-mentioned second time-frequency location can also refer to the region at Physical Downlink Control Channel (PDCCH) place, with first Time-frequency location is consistent.
The instruction information of main PDCCH comprises one or more from the following message of PDCCH:
From the time-frequency location (including the positional information controlling channel element CCE) shared by PDCCH；
From the modulation coding mode of PDCCH；
From the transmission mode of PDCCH；
From the load of PDCCH；
From demodulated reference signal (DMRS) the antenna end slogan of PDCCH；
From demodulated reference signal (DMRS) scrambling code identification of PDCCH；
Identify from demodulated reference signal (DMRS) number of layers of PDCCH；
From the carrier wave sign of PDCCH；
From the polymerization grade of PDCCH.
Wherein, above-mentioned from PDCCH for dispatching one or more Serving cell corresponding to each user (or referred to as component Carrier wave) Physical Downlink Shared Channel and/or Uplink Shared Channel.
What above-mentioned each Serving cell was corresponding includes descending control information format (DCI format) from PDCCH, and complete The Downlink Control Information comprised from PDCCH corresponding to portion or partial service community carries out combined coding, merge into one or Multiple DCI format, it is possible to reduce the blind check number of times of PDCCH and the blind check blocking rate of reduction PDCCH, improve system Performance And Reliability.
Corresponding for all or part of Serving cell Downlink Control Information comprised from PDCCH is carried out combined coding, Ke Yiyou Following several method:
Method one: the uplink authorization information (UL Grant) comprised from PDCCH that all or part of Serving cell is corresponding is entered Row combined coding, and by the downstream grants information (DL Grant) comprised from PDCCH corresponding for all or part of Serving cell Carry out combined coding.
Uplink and downlink authorization message carry out respectively after combined coding from PDCCH, correspond respectively to a main PDCCH；Or Person's uplink and downlink authorization message carry out respectively after combined coding from PDCCH, use same main PDCCH to indicate it Detection information.
Method two: the uplink and downlink authorization message comprised from PDCCH that all or part of Serving cell is corresponding is carried out jointly Combined coding.
Uplink and downlink authorization message jointly carry out after combined coding from PDCCH, use same main PDCCH to indicate it Detection information.
Holding at subscriber equipment (UE), main PDCCH is carried out blind Detecting, the main PDCCH detected is for indicating from PDCCH Coherent detection information, by obtain from PDCCH the up and/or DSCH Downlink Shared Channel on all Serving cells scheduling believe Breath.
Specifically, the when that UE end carrying out blind Detecting, need the DCI format of search volume proprietary to publicly-owned search volume and user Detect.There is a following several ways:
Mode one: for publicly-owned search volume, the transmission mode information that UE configures according to base station, at the PDCCH of base station configuration Blind Detecting is carried out on time-frequency location, and search volume proprietary for user, main PDCCH is first entered on the first time-frequency location by UE Row blind Detecting, then according to the instruction information of main PDCCH, examines from PDCCH on corresponding second time-frequency location Survey and decoding.It is further explained below.
In publicly-owned search volume, the transmission mode information that UE configures according to base station, the DCI format of two kinds of loads of blind Detecting, According to table 1, polymerization grade be candidate's PDCCH number of 4,8} be respectively 4,2}, need blind Detecting 12 times.
In the proprietary search volume of user, for main PDCCH, use a kind of descending control information format X (DCI formatX), DCI format X is a kind of new DCI format, and its load uses predefined mode or the side of high-level signaling notice Formula, for instruction from the schedule information of PDCCH.According to table 1, polymerization grade is { the candidate PDCCH of 1,2,4,8} Number be respectively 6,6,2,2}, need blind Detecting 16 times.Or increase candidate's PDCCH number of each polymerization grade, directly To the blind check number of times of publicly-owned and proprietary search volume less than 44 or 60 times.Such as table 3: polymerization grade be 1,2,4, Respectively { 6+A, 6+B, 2+C, 2+D}, wherein, A, B, C and D are positive integer to candidate's PDCCH number of 8}, A+B+C+D Less than or equal to 16 or 32.
Table 3
Or two kinds of descending control information format X1 and X2 (DCI format X1 and X2), for instruction from the tune of PDCCH Degree information.According to table 1, polymerization grade be candidate's PDCCH number of 1,2,4,8} be respectively 6,6,2,2}, need Blind Detecting 32 times.Or increase candidate's PDCCH number of each polymerization grade, until the blind check of publicly-owned and proprietary search volume Till number of times is less than 60 times.Such as table 3: polymerization grade be candidate's PDCCH number of 1,2,4,8} be respectively 6+A, 6+B, 2+C, 2+D}, wherein A, B, C and D are positive integer, and A+B+C+D is less than or equal to 16.
Mode two: for the publicly-owned and proprietary search volume of user, UE first carries out blind check to main PDCCH on the first time-frequency location Survey, then according to the instruction information of main PDCCH, to detecting from PDCCH and translating on corresponding second time-frequency location Code.It is further explained below.
In publicly-owned proprietary search volume, for main PDCCH, use a kind of descending control information format X (DCI format X), For instruction from the schedule information of PDCCH.According to table 1, polymerization grade be candidate's PDCCH number of 4,8} be respectively 2, 4}, needs blind Detecting 6 times.
In the proprietary search volume of user, for main PDCCH, use a kind of descending control information format X (DCI format X), For instruction from the schedule information of PDCCH.According to table 1, polymerization grade is that { candidate's PDCCH number of 1,2,4,8} is divided Not Wei 6,6,2,2}, need blind Detecting 16 times.Or increase candidate's PDCCH number of each polymerization grade, until public Till having the blind check number of times with proprietary search volume less than 44 or 60 times.Such as table 3: polymerization grade is { 1,2,4,8} Respectively { 6+A, 6+B, 2+C, 2+D}, wherein A, B, C and D are positive integer to candidate's PDCCH number, A+B+C+D Less than or equal to 16 or 32.
Or two kinds of descending control information format X1 and X2 (DCI format X1 and X2), for instruction from the tune of PDCCH Degree information.In publicly-owned search volume, according to table 1, polymerization grade be candidate's PDCCH number of 4,8} be respectively 2,4}, Need blind Detecting 12 times.In the proprietary search volume of user, according to table 1, polymerization grade is { the candidate PDCCH of 1,2,4,8} Number be respectively 6,6,2,2}, need blind Detecting 32 times.Or increase candidate's PDCCH number of each polymerization grade, Until the blind check number of times of publicly-owned and proprietary search volume is less than 60 times.Such as table 3: polymerization grade is { 1,2,4,8} Respectively { 6+A, 6+B, 2+C, 2+D}, wherein A, B, C and D are positive integer to candidate's PDCCH number, A+B+C+D Less than or equal to 16.
Mode three: for publicly-owned search volume, UE obtains corresponding PDCCH information according to the notice of high-level signaling, and right In the proprietary search volume of user, UE first carries out blind Detecting to main PDCCH, then according to main PDCCH on the first time-frequency location Instruction information, to detecting from PDCCH and decoding on corresponding second time-frequency location.It is further explained below.
In publicly-owned search volume, UE is made without detection.
In the proprietary search volume of user, for main PDCCH, use a kind of descending control information format X (DCI format X), For instruction from the schedule information of PDCCH.According to table 1, polymerization grade is that { candidate's PDCCH number of 1,2,4,8} is divided Not Wei 6,6,2,2}, need blind Detecting 16 times.Or increase candidate's PDCCH number of each polymerization grade, until public Till having the blind check number of times with proprietary search volume less than 44 or 60 times.Such as table 3: polymerization grade is { 1,2,4,8} Respectively { 6+A, 6+B, 2+C, 2+D}, wherein A, B, C and D are positive integer to candidate's PDCCH number, A+B+C+D Less than or equal to 28 or 44.
Or two kinds of descending control information format X1 and X2 (DCI format X1 and X2), for instruction from the tune of PDCCH Degree information.According to table 1, polymerization grade be candidate's PDCCH number of 1,2,4,8} be respectively 6,6,2,2}, need Blind Detecting 32 times.Or increase candidate's PDCCH number of each polymerization grade, until the blind check of publicly-owned and proprietary search volume Till number of times is less than 44 or 60 times.Such as table 3: polymerization grade be candidate's PDCCH number of 1,2,4,8} be respectively 6+A, 6+B, 2+C, 2+D}, wherein A, B, C and D are positive integer, and A+B+C+D is less than or equal to 12 or 28.
Embodiment two:
In LTE-Advance system, base station end sends physics on first time-frequency location and the second time-frequency location of each subframe Downlink control channel information.The Physical Downlink Control Channel of the first time-frequency location is referred to as main PDCCH, the physics of the second time-frequency location Down control channel is referred to as from PDCCH.
First time-frequency location refers to the region at Physical Downlink Control Channel (PDCCH) place that base station configures, and its time domain is occupied OFDM symbol number is the indicated value of Physical Control Format Indicator Channel (PCFICH), and original position is the first of each subframe Individual OFDM symbol.
Second time-frequency location refers to the region at Physical Downlink Shared Channel (PDSCH) place that base station configures, and its time domain is occupied The number of symbols that OFDM symbol number is occupied less than or equal to DSCH Downlink Shared Channel, original position is the n-th OFDM of subframe Symbol, wherein, n adds 1 equal to the indicated value of the Physical Control Format Indicator Channel (PCFICH) of subframe.
The instruction information of main PDCCH comprises one or more from the following message of PDCCH:
From the time-frequency location (including resource allocation type and resource time-frequency location information) shared by PDCCH；
From the time slot position information at PDCCH place；
From the modulation coding mode of PDCCH；
From the transmission mode of PDCCH；
From the load of PDCCH；
From demodulated reference signal (DMRS) the antenna end slogan of PDCCH；
From demodulated reference signal (DMRS) scrambling code identification of PDCCH；
Identify from demodulated reference signal (DMRS) number of layers of PDCCH；
From the carrier wave sign of PDCCH；
From the polymerization grade of PDCCH.
Above-mentioned transmission, from second time-frequency location of PDCCH, can determine, it is also possible to come by high-level signaling in the way of employing is predetermined Notice UE is which kind of time-frequency location used.
Alternatively, above-mentioned second time-frequency location can also refer to the region at Physical Downlink Control Channel (PDCCH) place, with first Time-frequency location is consistent.
The instruction information of main PDCCH comprises one or more from the following message of PDCCH:
From the time-frequency location (including the positional information controlling channel element CCE) shared by PDCCH；
From the modulation coding mode of PDCCH；
From the transmission mode of PDCCH；
From the load of PDCCH；
From demodulated reference signal (DMRS) the antenna end slogan of PDCCH；
From demodulated reference signal (DMRS) scrambling code identification of PDCCH；
Identify from demodulated reference signal (DMRS) number of layers of PDCCH；
From the carrier wave sign of PDCCH；
From the polymerization grade of PDCCH.
From PDCCH for dispatching the thing of one or more Serving cell corresponding to each user (or referred to as component carrier) Reason DSCH Downlink Shared Channel and/or Uplink Shared Channel.
Wherein, each Serving cell correspondence one is from PDCCH, and it comprises descending control information format (DCI format) and is used for Scheduling Physical Downlink Shared Channel and/or Uplink Shared Channel.The main PDCCH that all or part of Serving cell is corresponding comprises Downlink Control Information carries out combined coding, merges into one or more DCI format, to reduce the blind check number of times of PDCCH And the blind check blocking rate of reduction PDCCH, improve the Performance And Reliability of system.
Combined coding can have a following several method:
Method one: in the main PDCCH that all or part of Serving cell is corresponding, awards for up from PDCCH of instruction The Downlink Control Information of power information (UL Grant) carries out combined coding, the master that the most all or part of Serving cell is corresponding In PDCCH, the Downlink Control Information for instruction downstream grants information (DL Grant) from PDCCH carries out associating volume Code.
Method two: in the main PDCCH that all or part of Serving cell is corresponding, for up from PDCCH of instruction and The Downlink Control Information of downstream grants information carries out combined coding jointly.High-level signaling, SIBx signaling or broadcast notify The load of the main PDCCH after combined coding.
Holding at subscriber equipment (UE), main PDCCH is carried out blind Detecting, the main PDCCH detected is for indicating from PDCCH Coherent detection information, by obtain from PDCCH the up and/or DSCH Downlink Shared Channel on all Serving cells scheduling believe Breath.
The when that UE end carrying out blind Detecting, the DCI format of search volume proprietary to publicly-owned search volume and user is needed to carry out Detection.Mainly include following several ways:
Mode one: for publicly-owned search volume, the transmission mode information that UE configures according to base station, at the PDCCH of base station configuration Blind Detecting is carried out on time-frequency location, and search volume proprietary for user, main PDCCH is first entered on the first time-frequency location by UE Row blind Detecting, then according to the instruction information of main PDCCH, examines from PDCCH on corresponding second time-frequency location Survey and decoding.It is further explained below.
In publicly-owned search volume, the transmission mode information that UE configures according to base station, the DCI format of two kinds of loads of blind Detecting, According to table 1, polymerization grade be candidate's PDCCH number of 4,8} be respectively 4,2}, need blind Detecting 12 times.
In the proprietary search volume of user, for main PDCCH, use a kind of descending control information format X (DCI format X), For instruction from the schedule information of PDCCH.According to table 1, polymerization grade is that { candidate's PDCCH number of 1,2,4,8} is divided Not Wei 6,6,2,2}, need blind Detecting 16 times.Or increase candidate's PDCCH number of each polymerization grade, until public Till having the blind check number of times with proprietary search volume less than 44 or 60 times.Such as table 3: polymerization grade is { 1,2,4,8} Respectively { 6+A, 6+B, 2+C, 2+D}, wherein A, B, C and D are positive integer to candidate's PDCCH number, A+B+C+D Less than or equal to 16 or 32.
Or two kinds of descending control information format X1 and X2 (DCI format X1 and X2), for instruction from the tune of PDCCH Degree information.According to table 1, polymerization grade be candidate's PDCCH number of 1,2,4,8} be respectively 6,6,2,2}, need Blind Detecting 32 times.Or increase candidate's PDCCH number of each polymerization grade, until the blind check of publicly-owned and proprietary search volume Till number of times is less than 60 times.As shown in table 3, polymerization grade be candidate's PDCCH number of 1,2,4,8} be respectively 6+A, 6+B, 2+C, 2+D}, wherein A, B, C and D are positive integer, and A+B+C+D is less than or equal to 16.
Mode two: for the publicly-owned and proprietary search volume of user, UE first carries out blind check to main PDCCH on the first time-frequency location Survey, then according to the instruction information of main PDCCH, to detecting from PDCCH and translating on corresponding second time-frequency location Code.It is further explained below.
In publicly-owned proprietary search volume, for main PDCCH, use a kind of descending control information format X (DCI format X), For instruction from the schedule information of PDCCH.According to table 1, polymerization grade be candidate's PDCCH number of 4,8} be respectively 2, 4}, needs blind Detecting 6 times.
In the proprietary search volume of user, for main PDCCH, use a kind of descending control information format X (DCI format X), For instruction from the schedule information of PDCCH.According to table 1, polymerization grade is that { candidate's PDCCH number of 1,2,4,8} is divided Not Wei 6,6,2,2}, need blind Detecting 16 times.Or increase candidate's PDCCH number of each polymerization grade, until public Till having the blind check number of times with proprietary search volume less than 44 or 60 times.As shown in table 3: polymerization grade be 1,2,4, Respectively { 6+A, 6+B, 2+C, 2+D}, wherein A, B, C and D are positive integer to candidate's PDCCH number of 8}, A+B+C+D Less than or equal to 16 or 32.
Or two kinds of descending control information format X1 and X2 (DCI format X1 and X2), for instruction from the tune of PDCCH Degree information.In publicly-owned search volume, according to table 1, polymerization grade be candidate's PDCCH number of 4,8} be respectively 2,4}, Need blind Detecting 12 times.In the proprietary search volume of user, according to table 1, polymerization grade is { the candidate PDCCH of 1,2,4,8} Number be respectively 6,6,2,2}, need blind Detecting 32 times.Or increase candidate's PDCCH number of each polymerization grade, Until the blind check number of times of publicly-owned and proprietary search volume is less than 60 times.Such as table 3: polymerization grade is the { time of 1,2,4,8} { 6+A, 6+B, 2+C, 2+D}, wherein A, B, C and D are positive integer, A+B+C+D to select PDCCH number to be respectively Less than or equal to 16.
Mode three: for publicly-owned search volume, UE obtains corresponding PDCCH information according to the notice of high-level signaling, and right In the proprietary search volume of user, UE first carries out blind Detecting to main PDCCH, then according to main PDCCH on the first time-frequency location Instruction information, to detecting from PDCCH and decoding on corresponding second time-frequency location.It is further explained below.
In publicly-owned search volume, UE is made without detection.
In the proprietary search volume of user, for main PDCCH, use a kind of descending control information format X (DCI format X), For instruction from the schedule information of PDCCH.According to table 1, polymerization grade is that { candidate's PDCCH number of 1,2,4,8} is divided Not Wei 6,6,2,2}, need blind Detecting 16 times.Or increase candidate's PDCCH number of each polymerization grade, until public Till having the blind check number of times with proprietary search volume less than 44 or 60 times.Such as table 3: polymerization grade is { 1,2,4,8} Respectively { 6+A, 6+B, 2+C, 2+D}, wherein A, B, C and D are positive integer to candidate's PDCCH number, A+B+C+D Less than or equal to 28 or 44.
Or two kinds of descending control information format X1 and X2 (DCI format X1 and X2), for instruction from the tune of PDCCH Degree information.According to table 1, polymerization grade be candidate's PDCCH number of 1,2,4,8} be respectively 6,6,2,2}, need Blind Detecting 32 times.Or increase candidate's PDCCH number of each polymerization grade, until the blind check of publicly-owned and proprietary search volume Till number of times is less than 44 or 60 times.Such as table 3: polymerization grade be candidate's PDCCH number of 1,2,4,8} be respectively 6+A, 6+B, 2+C, 2+D}, wherein A, B, C and D are positive integer, and A+B+C+D is less than or equal to 12 or 28.
Embodiment three:
In LTE-Advance system, base station end sends physics on first time-frequency location and the second time-frequency location of each subframe Downlink control channel information.The Physical Downlink Control Channel of the first time-frequency location is referred to as main PDCCH, the physics of the second time-frequency location Down control channel is referred to as from PDCCH.
Above-mentioned first time-frequency location refers to the region at Physical Downlink Control Channel (PDCCH) place that base station configures, and its time domain accounts for Some OFDM symbol numbers are the indicated value of Physical Control Format Indicator Channel (PCFICH), and original position is each subframe First OFDM symbol.
Above-mentioned second time-frequency location refers to the region at Physical Downlink Shared Channel (PDSCH) place that base station configures, and its time domain accounts for The number of symbols that some OFDM symbol numbers are occupied less than or equal to DSCH Downlink Shared Channel, original position is the n-th of subframe OFDM symbol, wherein, n adds 1 equal to the indicated value of the Physical Control Format Indicator Channel (PCFICH) of subframe.
The instruction information of above-mentioned main PDCCH comprises one or more from the following message of PDCCH:
From the time-frequency location (including resource allocation type and resource time-frequency location information) shared by PDCCH；
From the time slot position information at PDCCH place；
From the modulation coding mode of PDCCH；
From the transmission mode of PDCCH；
From the load of PDCCH；
From demodulated reference signal (DMRS) the antenna end slogan of PDCCH；
From demodulated reference signal (DMRS) scrambling code identification of PDCCH；
Identify from demodulated reference signal (DMRS) number of layers of PDCCH；
From the carrier wave sign of PDCCH；
From the polymerization grade of PDCCH.
Above-mentioned transmission, from second time-frequency location of PDCCH, can determine, it is also possible to come by high-level signaling in the way of employing is predetermined Notice UE is which kind of time-frequency location used.
Alternatively, above-mentioned second time-frequency location can also refer to the region at physical downlink control channel PDCCH place, during with first Frequently position consistency.
The instruction information of above-mentioned main PDCCH comprises one or more from the following message of PDCCH:
From the time-frequency location (including the positional information controlling channel element CCE) shared by PDCCH；
From the modulation coding mode of PDCCH；
From the transmission mode of PDCCH；
From the load of PDCCH；
From demodulated reference signal (DMRS) the antenna end slogan of PDCCH；
From demodulated reference signal (DMRS) scrambling code identification of PDCCH；
Identify from demodulated reference signal (DMRS) number of layers of PDCCH；
From the carrier wave sign of PDCCH；
From the polymerization grade of PDCCH.
From PDCCH for dispatching the thing of one or more Serving cell corresponding to each user (or referred to as component carrier) Reason DSCH Downlink Shared Channel and/or Uplink Shared Channel.
What each Serving cell was corresponding includes descending control information format (DCI format) from PDCCH, and all or The Downlink Control Information comprised from PDCCH corresponding to person's partial service community carries out combined coding, merges into one or more DCI format。
Or；The Downlink Control Information that main PDCCH corresponding for above-mentioned all or part of Serving cell comprises is carried out associating volume Code, merges into one or more DCI format.
By high-level signaling, SIBx signaling or broadcast notify UE, the information of main PDCCH include following one or Person is multiple:
Time-frequency location (including the positional information controlling channel element CCE) shared by main PDCCH；
The modulation coding mode of main PDCCH；
The transmission mode of main PDCCH；
The load of main PDCCH；
Demodulated reference signal (DMRS) the antenna end slogan of main PDCCH；
Demodulated reference signal (DMRS) scrambling code identification of main PDCCH；
Demodulated reference signal (DMRS) the number of layers mark of main PDCCH；
The carrier wave sign of main PDCCH；
The polymerization grade of main PDCCH.
At receiving terminal, main PDCCH is detected and decodes according to high-level signaling, SIBx signaling or broadcast by UE, And indicate main PDCCH detects from PDCCH and decodes.
Fig. 4 is the structured flowchart of the transmission system of Downlink Control Information according to embodiments of the present invention.Wherein, it is applied to LTE-A System, as shown in Figure 4, the transmission system of this Downlink Control Information includes:
Base station 40, for sending Downlink Control Information by Physical Downlink Control Channel (PDCCH) in subframe；
Subscriber equipment (UE) 42, is used for receiving Downlink Control Information；
Wherein, PDCCH includes: main PDCCH and from PDCCH, and the information of main PDCCH is in the first time-frequency position of subframe Putting transmission, send from the information of PDCCH on the second time-frequency location of subframe, the information of main PDCCH includes for referring to Show the instruction information from PDCCH, include the tune for dispatching physical uplink and/or DSCH Downlink Shared Channel from the information of PDCCH Degree information.
Use said system, it is ensured that systematic function when more users access, and a certain degree of solve between different base station Interference problem.
Preferably, first corresponding for the main PDCCH time-frequency location of subframe n of subframe, at second of subframe n-1 of subframe Send on time slot, or send on the first area of first time slot of subframe n, or first time slot in subframe n Send on second area.
Preferably, subframe n of subframe from the second corresponding for PDCCH time-frequency location, at second of subframe n-1 of subframe Send on time slot, or send on the first area of first time slot of subframe n, or first time slot in subframe n Send on second area, or send on second time slot of subframe n, or second of first time slot in subframe n Jointly send on region and second time slot.
Wherein, the first area of first time slot is in first time slot, the region at the PDCCH place of base station configuration；First The second area of individual time slot is in first time slot, the region at the PDSCH place of base station configuration.
Above-mentioned main PDCCH for instruction from the instruction information of PDCCH include following one or more:
(one or more of is included: from the time slot position information at PDCCH place from the positional information shared by PDCCH； Positional information from the control channel element CCE at PDCCH place；PRB index from PDCCH place)；
From the modulation coding mode of PDCCH；
From the transmission mode of PDCCH；
From the load of PDCCH；
From demodulated reference signal (DMRS) the antenna end slogan of PDCCH；
From demodulated reference signal (DMRS) scrambling code identification of PDCCH；
Identify from demodulated reference signal (DMRS) number of layers of PDCCH；
From the carrier wave sign of PDCCH；
From the polymerization grade of PDCCH.
Preferably, above-mentioned first and second time-frequency location, can determine in the way of employing is predetermined, it is also possible to led to by high-level signaling Know that UE is which kind of time-frequency location used.
Preferably, as it is shown in figure 5, base station 40 includes: the first coding module 400, for by all or part of Serving cell pair The Downlink Control Information comprised from PDCCH answered carries out combined coding, and wherein, combined coding is by multiple Downlink Control Information Form DCI format merges into one or more DCI format.
Preferably, as it is shown in figure 5, base station 40 includes: the second coding module 402, for by all or part of Serving cell pair The Downlink Control Information that the main PDCCH answered comprises carries out combined coding, and wherein, combined coding is to be closed by multiple DCI format And be one or more DCI format.
Under carrier aggregation scene, the descending control letter that main PDCCH corresponding for all or part of Serving cell can be comprised Breath carries out combined coding, merges into one or more descending control information format DCI format.By high-level signaling, SIBx Signaling or broadcast notify UE.Wherein, the Downlink Control Information that main PDCCH comprises include following one or more:
Time-frequency location (including the positional information controlling channel element CCE) shared by main PDCCH；
The modulation coding mode of main PDCCH；
The transmission mode of main PDCCH；
The load of main PDCCH；
Demodulated reference signal (DMRS) the antenna end slogan of main PDCCH；
Demodulated reference signal (DMRS) scrambling code identification of main PDCCH；
Demodulated reference signal (DMRS) the number of layers mark of main PDCCH；
The carrier wave sign of main PDCCH；
The polymerization grade of main PDCCH.
Preferably, as it is shown in figure 5, UE 42 may further include: detection module 420, for main PDCCH is carried out Blind Detecting；First acquisition module 422, for obtaining the instruction information from PDCCH from main PDCCH；Second acquisition module 424, for believing by the scheduling obtaining the up of whole Serving cell and/or DSCH Downlink Shared Channel from PDCCH according to instruction information Breath.
At receiving terminal, main PDCCH is detected and decodes according to high-level signaling, SIBx signaling or broadcast by UE, And indicate main PDCCH detects from PDCCH and decodes.
In sum, the above-described embodiment provided by the present invention, under the carrier aggregation scene in lte-a system, to principal and subordinate PDCCH structure in, the PDCCH of multiple carrier waves carries out combined coding, it is ensured that more users access time systematic function, And solve the interference problem between different base station to a certain extent.
Obviously, those skilled in the art should be understood that each module of the above-mentioned present invention or each step can be with general calculating Device realizes, and they can concentrate on single calculating device, or is distributed on the network that multiple calculating device is formed, Alternatively, they can realize with calculating the executable program code of device, such that it is able to be stored in storing in device Performed by calculating device, or they be fabricated to respectively each integrated circuit modules, or by the multiple modules in them or Step is fabricated to single integrated circuit module and realizes.So, the present invention is not restricted to the combination of any specific hardware and software.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art For, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of being made, etc. With replacement, improvement etc., should be included within the scope of the present invention.

Claims (20)

1. a transmission method for Downlink Control Information, is applied to senior Long Term Evolution lte-a system, it is characterised in that including:
Base station sends Downlink Control Information to user equipment (UE) by physical downlink control channel PDCCH in subframe；
Wherein, described PDCCH includes: main PDCCH and from PDCCH, and described base station is sent out on the first time-frequency location Sending the information of described main PDCCH, described base station sends described from the information of PDCCH on the second time-frequency location, described The information of main PDCCH includes for indicating described from the instruction information of PDCCH, and the described information from PDCCH includes For dispatching the schedule information of physical uplink and/or DSCH Downlink Shared Channel；
Wherein, corresponding for the main PDCCH of described subframe described first time-frequency location is: first time slot of described subframe First area, or the second area of first time slot of described subframe, wherein, under described first time-frequency location sends Row control information is to be allocated to the Downlink Control Information of described subframe；Or, corresponding described of the main PDCCH of described subframe First time-frequency location is: second time slot of described subframe, wherein, and the descending control letter that described first time-frequency location sends Breath is for being allocated to the Downlink Control Information of next subframe；Described second time-frequency location corresponding from PDCCH of described subframe For: the first area of first time slot of described subframe, or the second area of first time slot of described subframe, or Second time slot of described subframe, or the Two Areas of first time slot of described subframe and second time slot, wherein, The Downlink Control Information that described second time-frequency location sends is the Downlink Control Information being allocated to described subframe；Or, described Described second time-frequency location corresponding from PDCCH of subframe is: second time slot of described subframe, wherein, and described second The Downlink Control Information that time-frequency location sends is the Downlink Control Information being allocated to next subframe.
Method the most according to claim 1, it is characterised in that
The first area of described first time slot is in first time slot, the region at the PDCCH place of base station configuration；
The second area of described first time slot is in first time slot, the region at the PDSCH place of base station configuration.
Method the most according to claim 2, it is characterised in that described instruction information includes at least one of:
Described from the positional information shared by PDCCH；
The described modulation coding mode from PDCCH；
The described transmission mode from PDCCH；
The described load from PDCCH；
The described demodulated reference signal DMRS antenna end slogan from PDCCH；
The described DMRS scrambling code identification from PDCCH；
The described DMRS number of layers mark from PDCCH；
The described carrier wave sign from PDCCH；
The described polymerization grade from PDCCH；
Wherein, described positional information includes at least one of:
From the time slot position information at PDCCH place,
From the positional information of the control channel element CCE at PDCCH place,
PRB index from PDCCH place.
Method the most according to claim 1, it is characterised in that described UE determines described first time-frequency position according to predefined mode Put and the second time-frequency location；Or when described UE determines described first time-frequency location and second by the high-level signaling received Frequently position.
Method the most according to claim 1, it is characterised in that under carrier aggregation scene,
Described described include from the instruction information of PDCCH for indicating: described main PDCCH one Serving cell of instruction or From the schedule information of PDCCH on multiple Serving cells；
The described schedule information for dispatching physical uplink and/or DSCH Downlink Shared Channel includes: described from PDCCH instruction one The schedule information of PDSCH and/or PUSCH on individual Serving cell or multiple Serving cell.
Method the most according to claim 1, it is characterised in that described base station send on described second time-frequency location described from Before the information of PDCCH, also include:
Corresponding for all or part of Serving cell Downlink Control Information comprised from PDCCH is carried out combined coding, wherein, Described combined coding is for merge into one or more descending control information format by multiple descending control information formats.
Method the most according to claim 6, it is characterised in that described by corresponding for all or part of Serving cell from PDCCH The Downlink Control Information comprised carries out combined coding and includes one below:
Corresponding for all or part of Serving cell uplink authorization information comprised from PDCCH is carried out combined coding, and will be complete The downstream grants information comprised from PDCCH corresponding to portion or partial service community carries out combined coding；
The uplink authorization information comprised from PDCCH corresponding for all or part of Serving cell and downstream grants information are total to With carrying out combined coding.
Method the most according to claim 1, it is characterised in that described base station sends on the first time-frequency location of described subframe Before the information of described main PDCCH, also include:
The Downlink Control Information that main PDCCH corresponding for all or part of Serving cell comprises is carried out combined coding, wherein, Described combined coding is for merge into one or more descending control information format by multiple descending control information formats.
Method the most according to claim 8, it is characterised in that described by main PDCCH corresponding for all or part of Serving cell The Downlink Control Information comprised carries out combined coding and includes one below:
By in main PDCCH corresponding for all or part of Serving cell, for instruction uplink authorization letter from PDCCH The Downlink Control Information of breath carries out combined coding, and by main PDCCH corresponding for all or part of Serving cell, uses Downlink Control Information in instruction downstream grants information from PDCCH carries out combined coding；
By in main PDCCH corresponding for all or part of Serving cell, for instruction uplink authorization letter from PDCCH The Downlink Control Information of breath and downstream grants information carries out combined coding jointly.
Method the most according to claim 8 or claim 9, it is characterised in that the Downlink Control Information that described main PDCCH comprises includes At least one of:
Positional information shared by described main PDCCH；
The modulation coding mode of described main PDCCH；
The transmission mode of described main PDCCH；
The load of described main PDCCH；
The demodulated reference signal DMRS antenna end slogan of described main PDCCH；
The DMRS scrambling code identification of described main PDCCH；
The DMRS number of layers mark of described main PDCCH；
The carrier wave sign of described main PDCCH；
The polymerization grade of described main PDCCH；
Wherein, described positional information includes at least one of:
From the time slot position information at PDCCH place,
From the positional information of the control channel element CCE at PDCCH place,
PRB index from PDCCH place.
11. methods according to claim 1, it is characterised in that described base station send described Downlink Control Information to described UE it After, also include:
Described main PDCCH is detected by described UE；
Described UE is described from the instruction information of PDCCH by obtaining in main PDCCH；
Described UE according to described instruction information by obtain from PDCCH the up of all or part of Serving cell and/or The described schedule information of DSCH Downlink Shared Channel.
12. methods according to claim 11, it is characterised in that for publicly-owned search volume, described UE is to described main PDCCH Carry out detection and include one below:
The transmission mode information that described UE configures according to described base station, on the PDCCH time-frequency location that described base station configures The descending control information format of two kinds of loads of detection；
Described UE detects the descending control information format of the schedule information load from PDCCH, or, described UE Detection from PDCCH1 and the descending control information format of the schedule information load from PDCCH2, wherein, described from PDCCH, use predefined mode or high-rise letter from PDCCH1 with from the schedule information load of PDCCH2 The mode of order notice determines, candidate's PDCCH number of the polymerization grade of described UE detection keeps predetermined number constant；
Described UE obtains the information of PDCCH according to the notice of high-level signaling；
Wherein, described it is used for indicating physics dispatch of down going sharing channel information from PDCCH1, described is used for from PDCCH2 Instruction physical uplink shared channel scheduling information；Or, described it is used for indicating Physical Uplink Shared Channel to adjust from PDCCH1 Degree information, described is used for indicating physics dispatch of down going sharing channel information from PDCCH2.
13. methods according to claim 12, it is characterised in that
Described publicly-owned search volume contains front 16 control channel elements of described first time-frequency location.
14. methods according to claim 11, it is characterised in that search volume proprietary for user, described UE is to described master PDCCH carries out detection and includes one below:
Described UE detects the descending control information format of the schedule information load from PDCCH, or, described UE Detection from PDCCH1 and the descending control information format of the schedule information load from PDCCH2, wherein, described from PDCCH, use predefined mode or high-rise letter from PDCCH1 with from the schedule information load of PDCCH2 The mode of order notice determines, candidate's PDCCH number of the polymerization grade of described UE detection keeps predetermined number constant, or Person increases candidate's PDCCH number of one or more polymerization grade in described predetermined number；
Wherein, described it is used for indicating physics dispatch of down going sharing channel information from PDCCH1, described is used for from PDCCH2 Instruction physical uplink shared channel scheduling information；Or, described it is used for indicating Physical Uplink Shared Channel to adjust from PDCCH1 Degree information, described is used for indicating physics dispatch of down going sharing channel information from PDCCH2.
15. methods according to claim 14, it is characterised in that
The proprietary search volume of described user is the control channel element of described first time-frequency location.
16. methods according to claim 11, it is characterised in that described UE carries out detection to described main PDCCH and includes:
Under the scene of multi-carrier polymerizing, the publicly-owned search volume on main Serving cell is only detected by UE.
The transmission system of 17. 1 kinds of Downlink Control Information, is applied to senior Long Term Evolution lte-a system, it is characterised in that including:
Base station, for sending Downlink Control Information by physical downlink control channel PDCCH in subframe；
User equipment (UE), is used for receiving described Downlink Control Information；
Wherein, described PDCCH includes: main PDCCH and from PDCCH, and the information of described main PDCCH is described Send on first time-frequency location of subframe, described send on the second time-frequency location of described subframe from the information of PDCCH, The information of described main PDCCH includes for indicating described from the instruction information of PDCCH, the described information from PDCCH Including the schedule information for dispatching physical uplink and/or DSCH Downlink Shared Channel；
Wherein, corresponding for the main PDCCH of described subframe described first time-frequency location is: first time slot of described subframe First area, or the second area of first time slot of described subframe, wherein, under described first time-frequency location sends Row control information is to be allocated to the Downlink Control Information of described subframe；Or, corresponding described of the main PDCCH of described subframe First time-frequency location is: second time slot of described subframe, wherein, and the descending control letter that described first time-frequency location sends Breath is for being allocated to the Downlink Control Information of next subframe；Described second time-frequency location corresponding from PDCCH of described subframe For: the first area of first time slot of described subframe, or the second area of first time slot of described subframe, or Second time slot of described subframe, or the Two Areas of first time slot of described subframe and second time slot, wherein, The Downlink Control Information that described second time-frequency location sends is the Downlink Control Information being allocated to described subframe；Or, described Described second time-frequency location corresponding from PDCCH of subframe is: second time slot of described subframe, wherein, and described second The Downlink Control Information that time-frequency location sends is the Downlink Control Information being allocated to next subframe.
18. systems according to claim 17, it is characterised in that described base station includes:
First coding module, for entering corresponding for all or part of Serving cell Downlink Control Information comprised from PDCCH Row combined coding, wherein, described combined coding for merging into one or more descending control by multiple descending control information formats Information format processed.
19. systems according to claim 17, it is characterised in that described base station includes:
Second coding module, for entering the Downlink Control Information that main PDCCH corresponding for all or part of Serving cell comprises Row combined coding, wherein, described combined coding for merging into one or more descending control by multiple descending control information formats Information format processed.
20. systems according to claim 17, it is characterised in that described UE includes:
Detection module, for detecting described main PDCCH；
First acquisition module, for described from the instruction information of PDCCH by obtaining in main PDCCH；
Second acquisition module, for being obtained the up of whole Serving cell according to described instruction information by described from PDCCH And/or the described schedule information of DSCH Downlink Shared Channel.
CN201110111386.XA 2011-04-29 2011-04-29 The transmission method of Downlink Control Information and system Active CN102186251B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201110111386.XA CN102186251B (en) 2011-04-29 2011-04-29 The transmission method of Downlink Control Information and system
PCT/CN2012/072556 WO2012146095A1 (en) 2011-04-29 2012-03-19 Method and system for transmitting downlink control information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110111386.XA CN102186251B (en) 2011-04-29 2011-04-29 The transmission method of Downlink Control Information and system

Publications (2)

Publication Number Publication Date
CN102186251A CN102186251A (en) 2011-09-14
CN102186251B true CN102186251B (en) 2016-09-28

Family

ID=44572305

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201110111386.XA Active CN102186251B (en) 2011-04-29 2011-04-29 The transmission method of Downlink Control Information and system

Country Status (2)

Country Link
CN (1) CN102186251B (en)
WO (1) WO2012146095A1 (en)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102186251B (en) * 2011-04-29 2016-09-28 中兴通讯股份有限公司 The transmission method of Downlink Control Information and system
CN102932299B (en) * 2011-08-08 2015-12-16 普天信息技术研究院有限公司 A kind of sending method of Physical Downlink Control Channel
CN102958184B (en) * 2011-08-25 2017-02-22 华为技术有限公司 Method, device and system for downlink control channel transmission
US9008035B2 (en) * 2011-09-29 2015-04-14 Futurewei Technologies, Inc. Wireless communication control channel systems and methods
CN102315870B (en) * 2011-09-30 2017-10-03 中兴通讯股份有限公司 A kind of Downlink Control Information indicating means and device
CN103096488B (en) * 2011-10-27 2015-07-08 华为技术有限公司 Method and device of multi-carrier scheduling
CN103095396B (en) * 2011-11-04 2016-04-27 中国移动通信集团公司 Transmit and the method and apparatus of blind Detecting strengthening Physical Downlink Control Channel
US9705654B2 (en) * 2011-11-08 2017-07-11 Apple Inc. Methods and apparatus for an extensible and scalable control channel for wireless networks
US9544881B2 (en) * 2012-01-30 2017-01-10 Alcatel Lucent Apparatuses, methods, and computer programs for a mobile transceiver and for a base station transceiver
CN107040490A (en) 2012-02-01 2017-08-11 华为技术有限公司 Demodulated pilot signal processing method, base station and user equipment
CN103312483B (en) * 2012-03-14 2016-08-03 华为终端有限公司 Control information method of sending and receiving, base station and subscriber equipment
US9602252B2 (en) * 2012-05-10 2017-03-21 Sun Patent Trust Wireless communications terminal, base station device, and resource allocation method
CN104272639B (en) * 2012-05-11 2017-12-05 华为技术有限公司 method for transmitting control channel signal
CN103428858B (en) * 2012-05-15 2018-03-23 中兴通讯股份有限公司 The sending method of control signaling, the detection method of control signaling, terminal and base station
CN102710405B (en) * 2012-05-23 2016-08-03 北京创毅讯联科技股份有限公司 The processing method of Downlink Control Information and system, base station and subscriber equipment
CN102692905B (en) * 2012-05-31 2014-04-02 武汉邮电科学研究院 Method for dynamic and static combined dispatch of LTE (long term evolution) physical layer on multicore DSP (digital signal processor)
CN103580837B (en) * 2012-08-03 2019-01-22 中兴通讯股份有限公司 Control signaling transmission, detection method and base station and terminal
CN109152059B (en) * 2012-11-02 2021-08-13 中兴通讯股份有限公司 User equipment and resource configuration method and system side of search space of user equipment
CN103812625B (en) * 2012-11-07 2017-11-24 上海贝尔股份有限公司 A kind of method and apparatus for determining Downlink Control Information based on carrier aggregation
CN103959880B (en) * 2012-11-20 2018-01-23 华为技术有限公司 Method, the network equipment and the user equipment of scheduling radio resources
CN104170300B (en) * 2013-01-18 2018-08-21 华为技术有限公司 A kind of method, base station and user equipment sending control information
WO2014148811A1 (en) * 2013-03-19 2014-09-25 엘지전자 주식회사 Method and device for canceling interference and receiving data in wireless communication system
CN104219036B (en) * 2014-09-30 2017-11-14 北京北方烽火科技有限公司 EPDCCH blind checking methods, method for mapping resource and device
CN104469962B (en) * 2014-11-14 2018-02-23 北京邮电大学 A kind of heterogeneous network federated resource dispatching method, device and user terminal
CN107155408B (en) * 2015-01-20 2019-11-19 华为技术有限公司 A kind of information transferring method, equipment and system
WO2016163807A1 (en) * 2015-04-09 2016-10-13 엘지전자 주식회사 Method for transmitting interference downlink control information in a wireless communication system and apparatus therefor
CN111556571B (en) 2015-11-11 2023-11-14 华为技术有限公司 Method and device for transmitting scheduling information
WO2017132957A1 (en) * 2016-02-04 2017-08-10 华为技术有限公司 Method for transmitting uplink information, user equipment, base station and apparatus
CN113692059B (en) 2016-05-30 2023-12-15 北京三星通信技术研究有限公司 Method and apparatus in a wireless communication system
CN107453840B (en) * 2016-05-30 2021-08-10 北京三星通信技术研究有限公司 Resource scheduling method and equipment
CN107645769B (en) 2016-07-22 2019-12-13 电信科学技术研究院 data transmission method and device
CN107666682B (en) * 2016-07-27 2023-05-02 中兴通讯股份有限公司 Communication channel transmission method, device and system
US10231228B2 (en) 2016-09-23 2019-03-12 Mediatek Inc. Methods of two-stage scheduling in downlink control channel
CN114466456A (en) * 2016-09-29 2022-05-10 华为技术有限公司 Transmission method of downlink control channel, receiving network element and sending network element
WO2018058443A1 (en) * 2016-09-29 2018-04-05 华为技术有限公司 Channel transmission method, and channel receiving method and device
CN108271261B (en) * 2016-12-30 2023-06-27 华为技术有限公司 Downlink control channel indication method, terminal equipment and network equipment
US11523376B2 (en) 2017-01-05 2022-12-06 Huawei Technologies Co., Ltd. Method for downlink control channel design
CN108633055B (en) * 2017-03-24 2022-02-25 华为技术有限公司 Information transmission method and communication equipment
AU2017411263A1 (en) * 2017-04-27 2019-12-05 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Wireless communication method, terminal device, and transmitting and receiving nodes
ES2932616T3 (en) * 2017-05-03 2023-01-23 Beijing Xiaomi Mobile Software Co Ltd Downlink control channel reception and transmission method and device
CN108882366B (en) * 2017-05-09 2022-04-08 中国移动通信有限公司研究院 Transmission method and device of Downlink Control Information (DCI)
CN109462892B (en) * 2017-06-30 2019-11-19 华为技术有限公司 Control information transferring method and equipment
US20190052406A1 (en) * 2017-08-11 2019-02-14 Mediatek Inc. Transmission For Ultra-Reliable And Low-Latency Communications In Mobile Communications
SG11202003460YA (en) * 2017-10-25 2020-05-28 Guangdong Oppo Mobile Telecommunications Corp Ltd Method for determining data transmission mode, network device, and computer storage medium
CN110178430B (en) * 2018-01-22 2023-11-21 北京小米移动软件有限公司 Information transmission method, device, system and storage medium
CN110225588B (en) * 2018-03-02 2021-08-13 华为技术有限公司 Signal sending and receiving method and device
CN110913420B (en) * 2018-09-17 2023-04-07 展讯半导体(南京)有限公司 Method and device for detecting and indicating multiple PDCCHs, terminal and base station
US20190149294A1 (en) * 2019-01-14 2019-05-16 Intel IP Corporation Csi-rs sequence generation and mapping and dmrs scrambling id configuration
WO2021159473A1 (en) * 2020-02-14 2021-08-19 Qualcomm Incorporated Csi-rs to enhance pdcch transmission or reception

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101404526A (en) * 2008-11-03 2009-04-08 中兴通讯股份有限公司 Descending control information processing method
CN101626625A (en) * 2009-08-05 2010-01-13 中兴通讯股份有限公司 Method for realizing downlink carrier control domain
CN101772144A (en) * 2009-01-06 2010-07-07 华为技术有限公司 Method, device and system for processing physical downlink control channel in multi-carrier system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2386182B1 (en) * 2009-01-07 2014-12-10 Nokia Solutions and Networks Oy Discontinuous reception in carrier aggregation wireless communication systems
CN102186251B (en) * 2011-04-29 2016-09-28 中兴通讯股份有限公司 The transmission method of Downlink Control Information and system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101404526A (en) * 2008-11-03 2009-04-08 中兴通讯股份有限公司 Descending control information processing method
CN101772144A (en) * 2009-01-06 2010-07-07 华为技术有限公司 Method, device and system for processing physical downlink control channel in multi-carrier system
CN101626625A (en) * 2009-08-05 2010-01-13 中兴通讯股份有限公司 Method for realizing downlink carrier control domain

Also Published As

Publication number Publication date
CN102186251A (en) 2011-09-14
WO2012146095A1 (en) 2012-11-01

Similar Documents

Publication Publication Date Title
CN102186251B (en) The transmission method of Downlink Control Information and system
CN102291736B (en) Detection method, user equipment and the base station of down control channel
CN101867953B (en) Method for detecting downlink control information in carrier aggregation scene and user equipment
CN102355340B (en) method and device for transmitting and receiving downlink control information
CN109417795B (en) Techniques for transmitting physical uplink shared channel in uplink pilot time slot
CN101610564B (en) Method for sending and detecting downlink control information
CN101764642B (en) Transmission method and transmission system of descending control information
CN101541063B (en) Transmission method and device of downlink control signaling
CN104854944B (en) Method and apparatus for sending and receiving control signal
CN102076098B (en) Obtain the method and system of Downlink Control Information in MBSFN sub-frame
CN101790190B (en) Method and device for detecting downlink control information
CN101860896B (en) A kind of method and apparatus determining the proprietary search volume of user
CN102625456B (en) The transmission of Downlink Control Information, receive and transmission method and relevant apparatus
CN101945403B (en) A kind of method and apparatus determining the proprietary search volume of user
CN113765641B (en) Staggered determination of devices
CN104113925B (en) Authorization signaling transmission, acquisition methods and device
CN102316526B (en) Transmission method and device
CN101808408B (en) Transmission method and system of downlink control information
CN107852259B (en) Receive or send the method and device thereof of signal
US20130114570A1 (en) Method and apparatus for transmitting uplink data in a wireless access system
CN107926037A (en) Method and apparatus for the time delay for reducing the transmission of LTE uplinks
CN101651995A (en) Transmission method and system of downlink control information
CN101631374A (en) Indication method and indication device of downlink transmission mode
CN101695009B (en) System for sending descending control information format and method
CN101715211A (en) Method and device for setting transmission mode

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant