CN102740372A - Method and apparatus for sending downlink control information - Google Patents
Method and apparatus for sending downlink control information Download PDFInfo
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- CN102740372A CN102740372A CN201110095604.5A CN201110095604A CN102740372A CN 102740372 A CN102740372 A CN 102740372A CN 201110095604 A CN201110095604 A CN 201110095604A CN 102740372 A CN102740372 A CN 102740372A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
Abstract
The invention discloses a method and an apparatus for sending downlink control information, and the method is used for solving problems of sending, receiving and monitoring the downlink control information in an indoor hotspot covering scenario of long term evolution (LTE). In the method, a base station sends a physical control format indicator channel (PCFICH) and a physical downlink control channel (PDCCH) to user equipment (UE), and the PDCCH is indicated by the PCFICH, so that a terminal in a LTE-Local Area Network is prevented from a blind detection process for the PDCCH. The method realizes sending, receiving and monitoring the downlink control information in the indoor hotspot covering scenario of the long term evolution (LTE), and further realizes transmission with low-overhead, rapid speed and high reliability.
Description
Technical field
The present invention relates to field of mobile wireless communication, relate in particular to the sending method and the device of the Downlink Control Information in the wireless communication system.
Background technology
Radio frames (radio frame) in Long Term Evolution (LTE, the Long Term Evolution) system comprises the frame structure of FDD (FDD, Frequency Division Duplex) pattern and time division duplex (TDD, Time Division Duplex) pattern.The frame structure of fdd mode, as shown in Figure 1, the radio frames of 10 milliseconds (ms) is 0.5ms by 20 length, and the time slot (slot) of numbering 0～19 is formed, and it is subframe (subframe) i of 1ms that time slot 2i and 2i+1 form length.The frame structure of tdd mode, as shown in Figure 2, the radio frames of a 10ms is longly formed for the field of 5ms (half frame) by two, and a field comprises that 5 length are the subframe of 1ms, and subframe i is defined as 2 and longly is time slot 2i and the 2i+1 of 0.5ms.In above-mentioned two kinds of frame structures; For standard cyclic prefix (Normal CP, Normal Cyclic Prefix), the symbol that it is 66.7 microseconds (us) that time slot comprises 7 length; Wherein the CP length of first symbol is 5.21us, and the length of all the other 6 symbols is 4.69us; For extended cyclic prefix (Extended CP, Extended Cyclic Prefix), a time slot comprises 6 symbols, and the CP length of all symbols is 16.67us.
The version number of LTE is corresponding to R8 (Release 8), and it increases the corresponding version number of version is R9 (Release 9).Following three kinds of downlink physical control channels have been defined among the LTE: physical down control format indicating channel (PCFICH, Physical Control Format Indicator Channel); The automatic repeat requests indicating channel of physical mixed (PHICH, Physical Hybrid Automatic Retransmission Request Indicator Channel); Physical Downlink Control Channel (PDCCH, Physical Downlink Control Channel).
Wherein, The PCFICH loaded information is used in reference to the OFDM (OFDM that is shown in transmission PDCCH in the sub-frame; Orthogonal Frequency Division Multiplexing) number of symbol; On first OFDM symbol of subframe, send, the place frequency location by system descending bandwidth and cell ID (ID, Identity) definite.
PHICH is used to carry acknowledgement/non-acknowledgement (ACK/NACK) feedback information of uplink transmission data.The number of PHICH, time-frequency position can be definite with sub-district ID by the system message in the Physical Broadcast Channel (PBCH, Physical Broadcast Channel) of the descending carrier at PHICH place.
PDCCH is used for bearing downlink control information (DCI, Downlink Control Information), comprising: uplink and downlink schedule information, and uplink power control information.The form of DCI (DCI format) is divided into following several kinds: 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:
The physical resource of physical downlink control channel PDCCH transmission is with control channel element (CCE; Control Channel Element) be unit; The size of a CCE is 9 resource element group (REG; Resource Element Group), i.e. 36 resource elements (Resource Element), a PDCCH possibly take 1,2,4 or 8 CCE.These four kinds of PDCCH sizes for taking 1,2,4,8 CCE adopt tree-shaped polymerization (Aggregation), and the PDCCH that promptly takies 1 CCE can begin from any CCE position; The PDCCH that takies 2 CCE begins from even number CCE position; The CCE position of the integral multiple of the PDCCH that takies 4 CCE since 4; The CCE position of the integral multiple of the PDCCH that takies 8 CCE since 8.In a radio frames; If adopt conventional CP (Cyclic Prefix; Cyclic Prefix), can carry the physical resource of physical downlink control channel PDCCH on preceding 1-3 the OFDM symbol of first time slot of each subframe, and can bearing downlink shared channel (PDSCH on the remaining symbol; Physical Downlink Shared Channel) physical resource, as shown in Figure 3.
Each polymerization grade (Aggregation level) definition search volume (Search space) comprises the search volume of public (common) and the search volume of subscriber equipment (UE, User Equipment) proprietary (UE-Specific).OFDM symbolic number that the controlled area that the CCE number of whole search volume is indicated by PCFICH in each descending sub frame is shared and the group number of PHICH are confirmed.UE DCI format by transmission mode of living in the search volume carries out blind Detecting to all possible PDCCH code checks.
In the k sub-frame, the control domain that carries PDCCH is 0 to N by suite number
CCE, k-1 N
CCE, kIndividual CCE constitutes.The PDCCH that UE should detect one group of candidate in each non-DRX (non-Discontinuous Reception, non-discontinuous reception) subframe to be to obtain control information, detects to be meant according to all DCI format to be detected PDCCH in organizing is decoded.The candidate PDCCH (PDCCH candidate) that need detect defines with the mode of search volume; To polymerization grade (aggregation level) L ∈ { 1; 2; 4,8}, search volume
defined by one group of candidate PDCCH (PDCCH candidate).The pairing CCE of candidate PDCCH (PDCCH candidate) m is defined by following formula in the search volume
:
I=0 wherein ..., L-1, m=0 ..., M
(L)-1, M
(L)Be the search volume
In the number of candidate PDCCH (PDCCH candidate) to be checked.
To common search space (common search space), Y
k=0, L gets 4 and 8.
To the proprietary search volume of UE (UE-specific search space), L gets 1,2, and 4,8.Y
k＝(A·Y
k-1)modD，
Y wherein
-1=n
RNTI≠ 0, A=39827, D=65537,
Expression rounds downwards, and ns is a timeslot number in the radio frames.n
RNTIBe corresponding RNTI (Radio Network Temporary Identifier, Radio Network Temporary Identifier).
It is each common search space of 4 and 8 that UE should detect aggregation level, and aggregation level is each proprietary search volume of UE of 1,2,4,8, and the proprietary search volume of common search space and UE can be overlapping.Concrete detection number of times and corresponding search space such as table 1:
Table 1
Because to the demand of indoor focus soverlay technique, the LTE focus covers the focus that has become discussion gradually, can use LTE-LAN (LTE-Local Area Networks, LTE local area network (LAN)) to call this technology usually.Under the scene for this indoor focus covering, if the design of its control channel continues to continue to use the design of LTE, then the same PDCCH blind detection process of LTE still need be followed in the terminal, and this is very disadvantageous for realization of simplifying the terminal.For this reason, under the scene that covers to this indoor focus, new down control channel be designed to a problem that needs to be resolved hurrily.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of sending method and device of Downlink Control Information, is used to solve under the indoor focus covering scene of LTE, how to carry out Downlink Control Information transmission, reception and problems of monitoring.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of sending method of Downlink Control Information, this method comprises:
Physics control head channel PCHCH and the PDCCH that carries indication physical downlink control channel PDCCH information sent in the base station to user equipment (UE).
The information that said PCHCH carries comprises one or more in the following message: identifier information, the PDCCH information corresponding with said identifier, basic frame configuration information.
The identifier that carries among the said PCHCH comprises one or more in the following column identifier: UE identifier, UE group identifier, system information SI identifier, paging Paging identifier, insert the RA identifier at random.
The PDCCH information corresponding with said identifier that said PCHCH carries comprises the time-domain position information of one or more in the following message: PDCCH in basic frame, the polymerization grade of control channel unit CCE, the type of control information, the employed Modulation and Coding Scheme MCS of PDCCH.
The time-domain position information of the said PDCCH that carries among the said PCHCH in basic frame is indicated through means of signaling, or indicates through the mode of pre-defined rule.
The information of carrying among the said PCHCH cascades up according to predefined mode, carries out chnnel coding through the mode of combined coding.
Said PDCCH carries all up and/or control informations of line correlation down.Further, said PDCCH carries corresponding uplink scheduling information, down dispatch information, up-downgoing schedule information or the power control information of identifier that carries with said PCHCH.
Said PDCCH adopts the mode of absolute coding to carry out chnnel coding, adopts publicly-owned reference signal form or special reference signal form to carry out many antenna transmission.
Further, the length and the employed Modulation and Coding Scheme of the time-domain position of said PCHCH in basic frame, the information bit that carries are fixed; Or the length and the employed Modulation and Coding Scheme of the time-domain position of said PCHCH in basic frame, the information bit that carries are indicated in Physical Broadcast Channel (PBCH); Or the time-domain position of said PCHCH in basic frame, the length of the information bit that carries and a part of information in the employed Modulation and Coding Scheme fixes, and other part of not fixing is indicated in PBCH with.
Further; Said PCHCH adopts host-guest architecture; The length of the time-domain position of main PCHCH in basic frame, the information bit that carries and MCS be fix or the signaling configuration, and in main PCHCH, indicate from the length and the MCS of the time-domain position of PCHCH basic frame, the information bit that carries; Or fixing from relation between PCHCH time-domain position and the main PCHCH time-domain position, the length and the MCS of the information bit that carries from PCHCH fix, and carry the information that whether exists from PCHCH among the main PCHCH.
When said PCHCH adopts host-guest architecture, do not comprise basic frame information from PCHCH.
Based on the embodiment of the invention, the present invention also proposes a kind of dispensing device of Downlink Control Information, and this device comprises:
First sending module is used for sending the physics control head channel PCHCH that carries indication physical downlink control channel PDCCH information to UE;
Second sending module is used for sending physical downlink control channel PDCCH to UE;
The information that said PCHCH carries comprises one or more in the following message: identifier information, the PDCCH information corresponding with said identifier, basic frame configuration information.
In the technical method of the present invention; Physics control head channel PCHCH and physical downlink control channel PDCCH are sent to UE in the base station; Through PCHCH indication PDCCH, reduce or avoided terminal in the LTE local area network (LAN) the blind detection process of PDCCH, realized under the indoor focus covering scene of LTE; Carry out transmission, reception and the monitoring of Downlink Control Information, and then realize the transmission of low expense, rapid rate and high reliability.
Description of drawings
Fig. 1 is the frame structure sketch map of fdd mode in the LTE prior art;
Fig. 2 is the frame structure sketch map of tdd mode in the LTE prior art;
Fig. 3 is the position view of down control channel and DSCH Downlink Shared Channel during conventional CP in the LTE prior art;
Fig. 4 is that descending control signaling of the present invention sends sketch map;
Fig. 5 is that another descending control signaling of the present invention sends sketch map;
Fig. 6 is that another descending control signaling of the present invention sends sketch map;
Fig. 7 is that another descending control signaling of the present invention sends sketch map.
Embodiment
To combine accompanying drawing that embodiments of the invention are elaborated below.Need to prove that under the situation of not conflicting, embodiment among the application and the characteristic among the embodiment be combination in any each other.
Under the indoor focus covering scene of LTE or LTE-Advance; Also can be described as under the LTE-LAN scene; PCHCH (Physical Control Header Channel, physics control head channel) and PDCCH are sent to UE in the base station, and wherein PCHCH can adopt one of following mode to send:
Mode 1:
As shown in Figure 4, PBCH, PCHCH and PDCCH are sent to UE in the base station, and wherein the time domain original position of PCHCH in basic frame, bit length that PCHCH carries information and the MCS of use fix.
Further; The basic frame information that PCHCH carries, identifier information and the PDCCH relevant information corresponding with this identifier are according to predefined concatenated in order; Form the transmission packets of information of PCHCH; Adopt fixing coded system to carry out combined coding, adopt the fixed modulation mode to modulate then, be mapped at last on the PCHCH channel and send to UE.
Consider importance and the robustness of PCHCH, preferred modulation scheme be binary phase shift keying (Binary Phase Shift Keying, BPSK) or QPSK (Quadrature Phase Shift Keying, QPSK);
Mode 2:
As shown in Figure 5, PBCH is sent to UE in the base station, PCHCH, and PDCCH, wherein the time domain original position of PCHCH in basic frame, bit length that PCHCH carries information and the MCS of use indicate in PBCH.
Further; The basic frame information that PCHCH carries, identifier information and the PDCCH relevant information corresponding with this identifier are according to predefined concatenated in order; Form the transmission packets of information of PCHCH; Adopt the coded system of PBCH indication to carry out combined coding, adopt the modulation system of PBCH indication to modulate then, be mapped at last on the PCHCH channel and send to UE.
Mode 3:
As shown in Figure 6, PBCH is sent to UE in the base station, PCHCH, PDCCH, wherein the time domain original position of PCHCH in basic frame be fix, PCHCH carries the bit length of information and the MCS of use indicates in PBCH.
Further; The basic frame information that PCHCH carries, identifier information and the PDCCH relevant information corresponding with this identifier are according to predefined concatenated in order; Form the transmission packets of information of PCHCH; Adopt the coded system of PBCH indication to carry out combined coding, adopt the modulation system of PBCH indication to modulate then, be mapped at last on the PCHCH channel and send to UE.
As shown in Figure 7, PBCH, PCHCH, PDCCH are sent to UE in the base station, wherein; Have one or 2 or a plurality of PCHCH, a PCHCH is main PCHCH, and other PCHCH are from PCHCH; The length of the time-domain position of main PCHCH in basic frame, the information bit that carries and MCS be fix or the signaling configuration; And indicate in main PCHCH from the length and the MCS of the time-domain position of PCHCH basic frame, the information bit that carries, perhaps, fix from relation between PCHCH time-domain position and the main PCHCH time-domain position; The length and the MCS of the information bit that carries fix, and carry the information that whether exists from PCHCH among the main PCHCH.
Further; The basic frame information that main PCHCH carries, identifier information and the PDCCH relevant information corresponding with this identifier; And get up according to predefined concatenated in order from the relevant information of PCHCH, form the transmission packets of information of main PCHCH, adopt the coded system of PBCH indication to carry out combined coding; Adopt the modulation system of PBCH indication to modulate then, be mapped at last on the main PCHCH channel and send to UE.
Perhaps; The basic frame information that main PCHCH carries, identifier information and the PDCCH relevant information corresponding with this identifier; And get up according to predefined concatenated in order from the relevant information of PCHCH; Form the transmission packets of information of main PCHCH, adopt predefined code modulation mode to be mapped on the main PCHCH channel and send to UE.
Further, from the relevant information of PCHCH comprise from PCHCH whether exist, from PCHCH time-frequency position, from the transmission block size of PCHCH, from the modulation system of PCHCH one or more and be not limited to this type of;
Further; When being merely from the relevant information of PCHCH when whether PCHCH exists; Fixing from time-frequency position and the main PCHCH time-frequency position relation of PDCCH; For example: be close to main PCHCH Continuous Mappings from PCHCH, occupying physical resource size, information transmitted block size, code modulation mode all is predefine;
The identifier that carries among the described PCHCH includes but not limited to down one or more in the column identifier: UE identifier, UE group identifier, system information (SI:System Information) identifier, paging (Paging) identifier, insert (RA:Random Access) identifier at random.
When the identifier that carries among the described PCHCH is the UE identifier, the UE with said UE identifier will carry out PDCCH according to the corresponding PDCCH information of said UE identifier and detect;
When the identifier that carries among the described PCHCH is the UE group identifier, all UE with said UE group identifier will carry out PDCCH according to the corresponding PDCCH information of said UE group identifier and detect;
When the identifier that carries among the described PCHCH is the SI identifier, UE all in the sub-district will carry out the PDCCH detection according to the corresponding PDCCH information of said SI identifier;
When the identifier that carries among the described PCHCH is the Paging identifier, the UE with said Paging identifier will carry out PDCCH according to the corresponding PDCCH information of said Paging identifier and detect;
When the identifier that carries among the described PCHCH is the RA identifier, the UE with said RA identifier will carry out PDCCH according to the corresponding PDCCH information of said RA identifier and detect;
Because the PDCCH relevant information corresponding with identifier comprises in the time-domain position information of PDCCH in basic frame, the polymerization grade of control channel unit (CCE:Control Channel Element), the type of control information, the employed Modulation and Coding Scheme of said PDCCH (MCS:Modulation Coding Scheme) one or more; Therefore, UE can reduce the number of times of PDCCH blind Detecting according to the PDCCH relevant information that obtains.
The time-domain position information of the PDCCH that carries among the described PCHCH in basic frame can also can be indicated through the mode of pre-defined rule through the means of signaling indication.
Said pre-defined rule is equivalent to according to predetermined method, according to identifier with or basic frame index confirm the position of the PDCCH that this indications is corresponding;
Said PDCCH carries the up of all UE and/or the control information of line correlation down; Further, identifier corresponding uplink scheduling information or down dispatch information or up-downgoing schedule information or the power control information of the described PDCCH information of carrying for carrying with PCHCH.
The said corresponding PDCCH of identifier that carries with PCHCH adopts the mode of absolute coding to carry out chnnel coding.
The said corresponding PDCCH of identifier that carries with PCHCH can adopt publicly-owned reference signal form or special reference signal form to carry out many antenna transmission.
The said physical resource of PDCCH position can be on continuous x number of sub-carrier and the time domain continuously y OFDM (OFDM) symbol (part time-frequency position can be skipped; Remove behind these positions relative continuously), also can be the discontinuous frequency band of part that the whole frequency band of occupying continuous z OFDM symbol is perhaps occupied continuous z OFDM symbol; Perhaps, the said physical resource of PDCCH position is discontinuous time-frequency position;
PDCCH carries proprietary demodulated reference signal;
Based on the foregoing description, the present invention also proposes a kind of dispensing device of Downlink Control Information, and this device is positioned at the base station, comprising:
First sending module is used for sending the physics control head channel PCHCH that carries indication physical downlink control channel PDCCH information to UE;
Second sending module is used for sending physical downlink control channel PDCCH to UE;
The terminal receives PCHCH and receives PDCCH according to the indication of PCHCH; Realize to reduce or to avoid terminal in the LTE local area network (LAN) to the blind detection process of PDCCH; Be implemented under the indoor focus covering scene of LTE; Carry out transmission, reception and the monitoring of Downlink Control Information, and then realize the transmission of low expense, rapid rate and high reliability.Therefore because this device is based on said method embodiment, the send mode of entrained indication information of said PCHCH and indication information form, PCHCH etc. all can directly be derived from the foregoing description, for saving space, repeats no more here.
One of ordinary skill in the art will appreciate that all or part of step in the said method can instruct related hardware to accomplish through program, said program can be stored in the computer-readable recording medium, like read-only memory, disk or CD etc.Alternatively, all or part of step of the foregoing description also can use one or more integrated circuits to realize, correspondingly, each the module/unit in the foregoing description can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (19)
1. the sending method of a Downlink Control Information is characterized in that, this method comprises:
The physics control head channel PCHCH and the physical downlink control channel PDCCH of carrying indication physical downlink control channel PDCCH information sent in the base station to user equipment (UE).
2. method according to claim 1; It is characterized in that the information that said physics control head channel PCHCH carries comprises one or more in the following message: identifier information, with said identifier corresponding physical down control channel PDCCH information, basic frame configuration information.
3. method according to claim 2 is characterized in that,
The identifier that carries among the said physics control head channel PCHCH comprises one or more in the following column identifier: user equipment (UE) identifier, user equipment (UE) group identifier, system information SI identifier, paging Paging identifier, insert the RA identifier at random.
4. method according to claim 2 is characterized in that,
What said physics control head channel PCHCH carried comprises in the following message one or more with said identifier corresponding physical down control channel PDCCH information: the time-domain position information of physical downlink control channel PDCCH in basic frame, the polymerization grade of control channel unit CCE, the type of control information, the employed Modulation and Coding Scheme MCS of physical downlink control channel PDCCH.
5. method according to claim 4 is characterized in that,
The time-domain position information of the said physical downlink control channel PDCCH of carrying among the said physics control head channel PCHCH in basic frame is indicated through means of signaling, or indicates through the mode of pre-defined rule.
6. method according to claim 1 is characterized in that,
The information of carrying among the said physics control head channel PCHCH cascades up according to predefined mode, carries out chnnel coding through the mode of combined coding.
7. method according to claim 2 is characterized in that,
Said physical downlink control channel PDCCH is carried all up and/or control informations of line correlation down.
8. according to claim 2 or 7 described methods, it is characterized in that,
Said physical downlink control channel PDCCH is carried corresponding uplink scheduling information, down dispatch information, up-downgoing schedule information or the power control information of identifier that carries with said physics control head channel PCHCH.
9. method according to claim 2 is characterized in that,
Said physical downlink control channel PDCCH adopts the mode of absolute coding to carry out chnnel coding.
10. method according to claim 2 is characterized in that,
Said physical downlink control channel PDCCH adopts publicly-owned reference signal form or special reference signal form to carry out many antenna transmission.
11. method according to claim 1 is characterized in that,
The length and the employed Modulation and Coding Scheme of the time-domain position of said physics control head channel PCHCH in basic frame, the information bit that carries are fixed; Or
The length and the employed Modulation and Coding Scheme of the time-domain position of said physics control head channel PCHCH in basic frame, the information bit that carries are indicated in Physical Broadcast Channel PBCH; Or
The length of the time-domain position of said physics control head channel PCHCH in basic frame, the information bit that carries and a part of information in the employed Modulation and Coding Scheme are fixed, and other part of not fixing is indicated in Physical Broadcast Channel PBCH with.
12. method according to claim 1 is characterized in that,
Said physics control head channel PCHCH adopts host-guest architecture; The length of the time-domain position of primary physical control head channel in basic frame, the information bit that carries and Modulation and Coding Scheme MCS be fix or the signaling configuration, and in primary physical control head channel, indicate from the length and the Modulation and Coding Scheme MCS of the time-domain position of physics control head channel basic frame, the information bit that carries; Or it is fixing from relation between physics control head channel time domain position and the primary physical control head channel time domain position; The length and the Modulation and Coding Scheme MCS of the information bit that carries from physics control head channel fix, and carry the information that whether exists from physics control head channel in the primary physical control head channel.
13. method according to claim 12 is characterized in that,
When said physics control head channel PCHCH adopts host-guest architecture, do not comprise basic frame information from physics control head channel.
14. the dispensing device of a Downlink Control Information is characterized in that, this device comprises:
First sending module is used for sending the physics control head channel PCHCH that carries indication physical downlink control channel PDCCH information to user equipment (UE);
Second sending module is used for sending physical downlink control channel PDCCH to user equipment (UE);
The information that said physics control head channel PCHCH carries comprises one or more in the following message: identifier information, with said identifier corresponding physical down control channel PDCCH information, basic frame configuration information.
15. device according to claim 14 is characterized in that,
The identifier that carries among the said physics control head channel PCHCH comprises one or more in the following column identifier: user equipment (UE) identifier, user equipment (UE) group identifier, system information SI identifier, paging Paging identifier, insert the RA identifier at random;
What said physics control head channel PCHCH carried comprises in the following message one or more with said identifier corresponding physical down control channel PDCCH information: the time-domain position information of physical downlink control channel PDCCH in basic frame, the polymerization grade of control channel unit CCE, the type of control information, the employed Modulation and Coding Scheme MCS of physical downlink control channel PDCCH.
16. device according to claim 15 is characterized in that,
Said first sending module is indicated the time-domain position information of said physical downlink control channel PDCCH in basic frame of carrying among the said physics control head channel PCHCH through the mode of means of signaling or pre-defined rule.
17. device according to claim 14 is characterized in that,
Said first sending module carries out chnnel coding through the mode of combined coding to the information of carrying among the said physics control head channel PCHCH according to the information of carrying among the said physics control head of the predefined mode cascade channel PCHCH.
18. device according to claim 14 is characterized in that,
The length and the employed Modulation and Coding Scheme of the time-domain position of said physics control head channel PCHCH in basic frame, the information bit that carries are fixed; Or
The length and the employed Modulation and Coding Scheme of the time-domain position of said physics control head channel PCHCH in basic frame, the information bit that carries are indicated in Physical Broadcast Channel PBCH; Or
The length of the time-domain position of said physics control head channel PCHCH in basic frame, the information bit that carries and a part of information in the employed Modulation and Coding Scheme are fixed, and other part of not fixing is indicated in Physical Broadcast Channel PBCH with.
19. device according to claim 14 is characterized in that,
Said first sending module sends said physics control head channel PCHCH according to host-guest architecture; The length of the time-domain position of primary physical control head channel in basic frame, the information bit that carries and Modulation and Coding Scheme MCS be fix or the signaling configuration, and in primary physical control head channel, indicate from the length and the Modulation and Coding Scheme MCS of the time-domain position of physics control head channel basic frame, the information bit that carries;
Or it is fixing from relation between physics control head channel time domain position and the primary physical control head channel time domain position; The length and the Modulation and Coding Scheme MCS of the information bit that carries from physics control head channel fix, and carry the information that whether exists from physics control head channel in the primary physical control head channel;
When said physics control head channel PCHCH adopts host-guest architecture, do not comprise basic frame information from physics control head channel.
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| CN201110095604.5A CN102740372B (en) | 2011-04-15 | 2011-04-15 | The sending method and device of a kind of Downlink Control Information |
| PCT/CN2012/073938 WO2012139512A1 (en) | 2011-04-15 | 2012-04-12 | Method and device for sending downlink control information |
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| CN201110095604.5A CN102740372B (en) | 2011-04-15 | 2011-04-15 | The sending method and device of a kind of Downlink Control Information |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104253678A (en) * | 2013-06-28 | 2014-12-31 | 上海贝尔股份有限公司 | Configuration method of EPHICH (enhanced physical hybrid automatic repeat request indicator channel) |
| CN107666713A (en) * | 2016-07-27 | 2018-02-06 | 普天信息技术有限公司 | SPDCCH transmission method and device in a kind of sTTI |
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| CN109150485A (en) * | 2017-08-11 | 2019-01-04 | 华为技术有限公司 | A kind of sending, receiving method and equipment controlling information |
| WO2019028755A1 (en) * | 2017-08-10 | 2019-02-14 | Zte Corporation | Communication of common control blocks |
| CN109644081A (en) * | 2018-11-28 | 2019-04-16 | 北京小米移动软件有限公司 | The detection method of descending control signaling, apparatus and system |
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| CN101478808B (en) * | 2009-01-21 | 2014-03-19 | 中兴通讯股份有限公司 | Downlink control information sending and detecting method |
| CN101877621A (en) * | 2009-04-30 | 2010-11-03 | 三星电子株式会社 | Sending method and sending device used for physical downlink control channel (PDCCH) in LTE-A system |
| CN101594205B (en) * | 2009-06-22 | 2014-08-06 | 中兴通讯股份有限公司南京分公司 | Method for transmitting downlink control signaling of LTE-Advanced system |
| CN101714892B (en) * | 2009-11-02 | 2014-12-31 | 中兴通讯股份有限公司 | Method and system for transmitting downlink control information |
| CN101772179A (en) * | 2010-01-08 | 2010-07-07 | 中兴通讯股份有限公司 | Method and system for transmitting system information in carrier aggregation scene |
-
2011
- 2011-04-15 CN CN201110095604.5A patent/CN102740372B/en not_active Expired - Fee Related
-
2012
- 2012-04-12 WO PCT/CN2012/073938 patent/WO2012139512A1/en active Application Filing
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| CN107666713A (en) * | 2016-07-27 | 2018-02-06 | 普天信息技术有限公司 | SPDCCH transmission method and device in a kind of sTTI |
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| US11799582B2 (en) | 2018-11-28 | 2023-10-24 | Beijing Xiaomi Mobile Software Co., Ltd. | Method and apparatus for detecting downlink control signaling, and system |
| CN114175775A (en) * | 2019-08-23 | 2022-03-11 | 华为技术有限公司 | Method, device and system for receiving and transmitting control information |
| CN114175775B (en) * | 2019-08-23 | 2023-07-14 | 华为技术有限公司 | Method, device and system for receiving and transmitting control information |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102740372B (en) | 2017-08-25 |
| WO2012139512A1 (en) | 2012-10-18 |
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