CN102378269B - PDCCH information transmission method and device thereof - Google Patents
PDCCH information transmission method and device thereof Download PDFInfo
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- CN102378269B CN102378269B CN201010254815.4A CN201010254815A CN102378269B CN 102378269 B CN102378269 B CN 102378269B CN 201010254815 A CN201010254815 A CN 201010254815A CN 102378269 B CN102378269 B CN 102378269B
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Abstract
An embodiment of the invention discloses a PDCCH (physical downlink control channel) information transmission method and a device thereof. Through applying a technical scheme of the embodiment, a base station determines exclusive PDCCH search space of a terminal device according to deviation value information, and sends PDCCH information to the terminal device. The terminal device also determines the exclusive PDCCH search space of a terminal device according to the deviation value information, and acquires corresponding PDCCH information through the PDCCH search space. Thus, a blocking probability in a PDCCH scheduling process is reduced, and reliability of PDCCH transmission is raised.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of transmission method of PDCCH information and equipment.
Background technology
At LTE (Long Term Evolution, Long Term Evolution) in system, terminal need to be to public search space and UE (User Equipment, subscriber equipment) PDCCH (the PhysicalDownlink Control Channel of exclusive search volume, Physical Downlink Control Channel) carry out blind Detecting simultaneously, CCE (the Control Channel Elements of PDCCH, control channel unit) polymerization grade (Aggregation Level, AL) can be 1,2,4,8.In public search space, its CCE polymerization grade can only be 4 and 8, and the number of the candidate PDCCH in its public search space is respectively 4 and 2 accordingly.In the exclusive search volume of UE, under every kind of CCE polymerization grade, it is different needing the number of the candidate PDCCH of blind check, specifically as shown in table 1:
Table 1 PDCCH candidates in UE specific search space.
According to the description in table 1, corresponding to [1,2,4,8] four kinds of CCE polymerization grades, the PDCCH candidate in the exclusive search volume of its UE can be described as [6,6,2,2].Need two kinds of DCI of blind check (Downlink Control Information, Downlink Control Information) form for every kind of transmission mode, can find out that it is 44 times that LTE terminal needs the number of times of blind check.Wherein, the exclusive search volume of UE is defined as follows shown in the formula of face:
Wherein, Y
k=(AY
k-1) modD,
Y
-1＝n
RNTI≠0，A＝39827，D＝65537；
what represent is in subframe k, when polymerization grade is L, and the position, PDCCH search volume of UE, i=0 ..., L-1, m=0 ..., M
(L)-1;
M
(L)it is the number of the candidate PDCCH in the time that polymerization grade is L in form 1;
N
cCE, kwhat represent is the number of k the CCE in subframe.
For LTE-Advanced (LTE of evolution) system, for supporting the system bandwidth wider than LTE system, such as 100MHz, need by the resource of multiple LTE carrier waves (claiming again member carrier) being coupled together to use, specifically there are two kinds of modes:
Mode one, multiple continuous LTE carrier waves are carried out to polymerization, for LTE-A provides larger transmission bandwidth;
Mode two, multiple discontinuous LTE carrier waves are carried out to polymerization, for LTE-A provides larger transmission bandwidth
As shown in Figure 1, provided the schematic diagram of the scene of discontinuous carrier aggregation.
At present, the research trend of standardization body is, be that design on each carrier wave keeps as far as possible consistent with LTE Release 8, thereby the terminal of guarantee LTE R8 can normally be worked on each member carrier for the common recognition of carrier aggregation system design.
On the other hand, the control program of the PDCCH in LTE-A system mainly contains following two kinds of patterns:
Pattern one, independent scheduling
Each carrier wave is independently dispatched, do not support across carrier dispatching, in this all situation, the definition of the PDCCH search volume of each carrier wave with in LTE R8, be consistent.Its schematic diagram as shown in Figure 2.
Pattern two, across carrier dispatching
Can pass through other carrier waves of carrier dispatching, its schematic diagram as shown in Figure 3.
For pattern two across in carrier dispatching situation, consider the complexity of PDCCH design, the flexibility of scheduling, the complexity of PDCCH blind check, and the impact bringing in up-downgoing asymmetric carrier aggregation situation, incidence relation between PDCCH CC and PDSCH/PUSCH CC meets a PDSCH/PUSCH CC can only be dispatched by a PDCCH CC, if Fig. 4 is as shown.
In the discussion process of 3GPP, determine for different PDSCH/PUSCH CC, on PDCCH CC, have different PDCCH search volumes, SS1 is corresponding to CC1 as shown in Figure 4, and SS2 is corresponding to CC2.
Determine simultaneously, the search volume of the PDCCH of other member carrier, need to determine according to the search volume of PDCCH corresponding in PDCCH CC, as shown in Figure 4, PDCCH CC is CC1, PDSCH CC is CC1 and CC2, and the PDCCH search volume SS2 of CC2 need to determine according to the PDCCH search volume SS1 of CC1 so.
In the process that realizes the embodiment of the present invention, applicant finds that prior art at least exists following problem:
In prior art, not also very clear and definite for the definition of PDCCH search volume, thereby need the define method of further determining PDCCH search volume to reduce the probability that PDCCH blocks.
Summary of the invention
The embodiment of the present invention provides a kind of transmission method and equipment of PDCCH information, solves existing PDCCH search volume definition indefinite, affect the problem of PDCCH blocking rate reduction effect.
For achieving the above object, the embodiment of the present invention provides a kind of transmission method of PDCCH information on the one hand, comprising:
The PDCCH search volume that terminal equipment is exclusive is determined according to deviant information in base station;
Described base station sends PDCCH information by described PDCCH search volume to described terminal equipment.
On the other hand, the embodiment of the present invention also provides a kind of base station, comprising:
Determination module, for determining the PDCCH search volume that terminal equipment is exclusive according to deviant information;
Sending module, for sending PDCCH information by the determined PDCCH of described determination module search volume to described terminal equipment.
On the other hand, the embodiment of the present invention also provides a kind of transmission method of PDCCH information, comprising:
Terminal equipment is according to the strategy of deviant information and the applied definite PDCCH of network side search volume, determines the search volume of self exclusive PDCCH;
Described terminal equipment, in the described PDCCH search volume of determining, receives self corresponding PDCCH information.
On the other hand, the embodiment of the present invention also provides a kind of terminal equipment, comprising:
Determination module, for according to the strategy of deviant information and the applied definite PDCCH of network side search volume, determines the search volume of the exclusive PDCCH of described terminal equipment;
Receiver module, in the determined described PDCCH of described determination module search volume, receives the corresponding PDCCH information of described terminal equipment.
Compared with prior art, the embodiment of the present invention has the following advantages:
By the technical scheme of the application embodiment of the present invention, base station is by the PDCCH search volume exclusive according to the definite terminal equipment of deviant information, send PDCCH information to terminal equipment, and terminal equipment is determined this PDCCH search volume according to deviant information equally, and obtain corresponding PDCCH information by this PDCCH search volume, thereby, reduce the blocking probability in PDCCH scheduling process, improve the reliability of PDCCH transmission.
Brief description of the drawings
Fig. 1 is the schematic diagram of the scene of discontinuous carrier aggregation of the prior art;
Fig. 2 is the scene schematic diagram that carrier wave of the prior art is independently dispatched;
Fig. 3 is the scene schematic diagram across carrier dispatching of the prior art;
Fig. 4 is the scene schematic diagram of dispatching between PDCCH CC and PDSCH/PUSCH CC in prior art;
The schematic flow sheet of the transmission method of a kind of PDCCH information that Fig. 5 proposes for the embodiment of the present invention;
Fig. 6 is that the transmission method of a kind of PDCCH information of proposing of the embodiment of the present invention is at the schematic flow sheet of terminal equipment side;
The schematic flow sheet of the transmission method of the PDCCH information under a kind of concrete application scenarios that Fig. 7 proposes for the embodiment of the present invention;
The structural representation of a kind of base station that Fig. 8 proposes for the embodiment of the present invention;
The structural representation of a kind of terminal equipment that Fig. 9 proposes for the embodiment of the present invention.
Embodiment
As stated in the Background Art, owing to determining for different PDSCH/PUSCHCC in 3GPP discussion, on PDCCH CC, there is different PDCCH search volumes, and definite mode of existing PDCCH search volume is not considered this kind of situation and the impact that brings, so, cause the indefinite of PDCCH search volume definition, affected with this and carried out the reduction effect of definite PDCCH search volume to PDCCH blocking rate.
In order to solve the above problems, the embodiment of the present invention has provided a kind of technical scheme of determining PDCCH search volume by deviant information, the major technique thought of this technical scheme is: default bias value information on base station and terminal equipment, the PDCCH search volume that terminal equipment is exclusive is determined according to this deviant information in base station, and send PDCCH information by this PDCCH search volume to terminal equipment, and terminal equipment is also determined PDCCH search volume according to same rule, and therefrom obtain corresponding PDCCH information.
As shown in Figure 5, the schematic flow sheet of the transmission method of a kind of PDCCH information proposing for the embodiment of the present invention, specifically comprises the following steps:
The PDCCH search volume that terminal equipment is exclusive is determined according to deviant information in step S501, base station.
Before this step, also comprise that base station sends the instruction entering across carrier dispatching pattern to terminal equipment.
Wherein, deviant information, is specially deviant information default in base station, in actual applications, in base station and terminal equipment, all need to arrange deviant information, and the value of both deviant information is identical, in concrete application scenarios, deviant information is specially a fixing integer value.
Further, in concrete application scenarios, the numerical value of deviant information is specially 3, under the shared scene in non-search volume, this value can reach minimum PDCCH blocking rate, and consider that the shared probability in search volume is very low, be far smaller than the probability of situation about not sharing search volume, therefore, ignore search volume and share the impact of situation, the value that can directly set deviant information is 3, thereby, realize effective reduction of PDCCH blocking rate.
In the deterministic process of concrete PDCCH search volume, the concrete processing procedure of this step is:
Base station is according to deviant information, and the numbering of each member carrier of current terminal equipment institute polymerization, determines the PDCCH search volume that terminal equipment is exclusive.
Step S502, base station send PDCCH information by PDCCH search volume to terminal equipment.
The transmission method of a kind of PDCCH information that said process proposes for the embodiment of the present invention is at the realization flow of base station side, below, the embodiment of the present invention has further provided a kind of transmission method of PDCCH information at the realization flow of terminal equipment side, its schematic flow sheet as shown in Figure 6, specifically comprises the following steps:
Step S601, terminal equipment be according to the strategy of deviant information and the applied definite PDCCH of network side search volume, determines the search volume of self exclusive PDCCH.
Before this step, also comprise that terminal equipment receives the instruction across carrier dispatching pattern that enters of base station transmission, accordingly, terminal equipment is confirmed self to enter across carrier dispatching pattern.
Wherein, deviant information, is specially deviant information default in base station, in actual applications, in base station and terminal equipment, all need to arrange deviant information, and the value of both deviant information is identical, in concrete application scenarios, deviant information is specially a fixing integer value.
Further, in concrete application scenarios, the numerical value of deviant information is specially 3, under the shared scene in non-search volume, this value can reach minimum PDCCH blocking rate, and consider that the shared probability in search volume is very low, be far smaller than the probability of situation about not sharing search volume, therefore, ignore search volume and share the impact of situation, the value that can directly set deviant information is 3, thereby, realize effective reduction of PDCCH blocking rate.
In concrete application scenarios, the concrete processing procedure of this step is:
Terminal equipment is according to deviant information, and the numbering of each member carrier of current terminal equipment institute polymerization, determines the PDCCH search volume that terminal equipment is exclusive.
Step S602, terminal equipment, in definite PDCCH search volume, receive self corresponding PDCCH information.
In concrete application scenarios, the processing procedure of this step specifically comprises:
(1) terminal equipment carries out blind check to definite PDCCH search volume.
(2) the PDCCH information that terminal equipment obtains blind check is carried out verification.
(3), in the time of verification succeeds, terminal equipment receives the PDCCH information of verification succeeds.
In concrete application scenarios, the PDCCH information that terminal equipment obtains blind check is carried out the process of verification, is specially:
Terminal equipment obtains PDCCH information to blind check and carries out CRC detection, to judge whether being self corresponding PDCCH information.
Concrete CRC detect according to being that some of the corresponding PDCCH of terminal equipment that sets in advance limit parameters, these setting parameters the relevant information of terminal equipment each PDCCH that need to receive, terminal equipment is retrieved in the PDCCH resource space definite according to offset information, get PDCCH information, and detect and judge whether this PDCCH information is the corresponding PDCCH information of this terminal self by CRC.
For example, in aforesaid presupposed information, can comprise n
rNTI, n
sand the parameter such as the corresponding mark of this terminal equipment.
Terminal equipment carries out CRC detection according to above-mentioned parameter, is detecting in successful situation, determines that this PDCCH information is the PDCCH information of self correspondence.
If CRC detects successfully, terminal equipment receives CRC and detects successful PDCCH information.
If it is unsuccessful that CRC detects, terminal equipment continues the PDCCH information in other search volumes to carry out CRC detection, until the PDCCH information in determined PDCCH search volume all completes verification in step S601.
Compared with prior art, the embodiment of the present invention has the following advantages:
By the technical scheme of the application embodiment of the present invention, base station is by the PDCCH search volume exclusive according to the definite terminal equipment of deviant information, send PDCCH information to terminal equipment, and terminal equipment is determined this PDCCH search volume according to deviant information equally, and obtain corresponding PDCCH information by this PDCCH search volume, thereby, reduce the blocking probability in PDCCH scheduling process, improve the reliability of PDCCH transmission.
Below, in conjunction with concrete application scenarios, the technical scheme that the embodiment of the present invention is proposed describes.
As shown in Figure 7, the schematic flow sheet of the transmission method of the PDCCH information under a kind of concrete application scenarios proposing for the embodiment of the present invention, the method specifically comprises the following steps:
Step S701, the value of offset information (offset) is set in base station and terminal equipment.
Concrete value is fixed integer, and keeps terminal equipment identical with the value in base station.
In concrete application scenarios, the value that offset information can be directly set is 3.
Offset=3 is the optimal result obtaining by a large amount of realizations, and in the situation that not having PDCCH search volume shared, offset=3 always can provide minimum PDCCH blocking rate.For there being the shared situation in PDCCH search volume, the value of its offset with do not have the shared situation in PDCCH search volume inconsistent, PDCCH blocking rate is no longer minimum, but considering that PDCCH search volume is shared is only applied to the situation that DCI bit number is equal, meanwhile, the probability that this situation occurs is not much smaller than there is no the shared situation in PDCCH search volume, therefore, can ignore the impact of the shared situation in PDCCH search volume, directly set offset=3.
Step S702, base station enter across carrier dispatching pattern by signaling indicating terminal.
The PDCCH search volume that terminal equipment is exclusive is determined according to the numbering of each member carrier of offset information and the polymerization of current terminal equipment institute in step S703, base station.
In concrete application scenarios, in this step, determine that the process of PDCCH search volume is specifically calculated by following formula:
Wherein,
be illustrated in subframe k, carrier index is n, the search volume of the PDCCH that CCE polymerization grade is L;
N is the numbering of member carrier, n=0, and 1,2 ..., (N-1), N is the number of the member carrier of current terminal equipment institute polymerization;
Offset is the side-play amount of the PDCCH search volume that different PDSCH/PUSCH CC are corresponding.
Known by above explanation, in concrete application scenarios, offset is fixed integer, and its value can be 3, and now, above-mentioned formula adjustment is as follows:
Wherein each meaning of parameters is constant, is not repeated.
Step S704, terminal equipment determine according to the numbering of each member carrier of offset information and the polymerization of current terminal equipment institute the PDCCH search volume that self is exclusive.
Concrete definite mode is identical with step S703, and both applied processing policies and offset information are consistent.
Thereby terminal equipment can find self corresponding PDCCH search volume accurately.
It is to be noted, step S704 is the independent process flow process that terminal equipment carries out after step S702 completes, there is no inevitable precedence relationship with step S703, both are two treatment steps that base station and terminal equipment independently carry out, but step S703 and step S704 all need to complete before base station sends PDCCH information, to ensure the normal reception of PDCCH information.
Step S705, base station send PDCCH information by definite PDCCH search volume to terminal equipment.
Step S706, terminal equipment obtain self corresponding PDCCH information in this PDCCH search volume.
Concrete obtain manner is first blind check to be carried out in PDCCH search volume, the PDCCH information obtaining for blind check is carried out verification, in the time of verification succeeds, confirm that this PDCCH information is self corresponding PDCCH information, and receive this PDCCH information, otherwise, if verification failure, confirm that this PDCCH information is not self corresponding PDCCH information, continue other PDCCH information to carry out verification.
Due to terminal equipment and do not know when base station sends PDCCH information, so, terminal equipment need to be determined possible PDCCH search volume to the each member carrier receiving, and detect, and concrete definite foundation is exactly the numbering of offset information and current member carrier, and blind check is carried out in definite PDCCH search volume, therefrom obtain PDCCH information.
Compared with prior art, the embodiment of the present invention has the following advantages:
By the technical scheme of the application embodiment of the present invention, base station is by the PDCCH search volume exclusive according to the definite terminal equipment of deviant information, send PDCCH information to terminal equipment, and terminal equipment is determined this PDCCH search volume according to deviant information equally, and obtain corresponding PDCCH information by this PDCCH search volume, thereby, reduce the blocking probability in PDCCH scheduling process, improve the reliability of PDCCH transmission.
In order to realize the technical scheme of the embodiment of the present invention, the embodiment of the present invention has also proposed a kind of base station, and its structural representation as shown in Figure 8, specifically comprises:
Determination module 81, for determining the PDCCH search volume that terminal equipment is exclusive according to deviant information;
Sending module 82, for sending PDCCH information by the determined PDCCH of determination module 81 search volume to terminal equipment.
Wherein, sending module 82, also for before determining the exclusive PDCCH search volume of terminal equipment according to deviant information at determination module 81, sends the instruction entering across carrier dispatching pattern to terminal equipment.
Further, this base station also comprises:
Module 83 is set, for deviant information is set;
Wherein, deviant information, is specially deviant information default in base station, in actual applications, in base station and terminal equipment, all need to arrange deviant information, and the value of both deviant information is identical, in concrete application scenarios, deviant information is specially a fixing integer value.
Further, in concrete application scenarios, the numerical value of deviant information is specially 3, under the shared scene in non-search volume, this value can reach minimum PDCCH blocking rate, and consider that the shared probability in search volume is very low, be far smaller than the probability of situation about not sharing search volume, therefore, ignore search volume and share the impact of situation, the value that can directly set deviant information is 3, thereby, realize effective reduction of PDCCH blocking rate.
Based on this, the processing procedure of determination module 81 is specially:
According to the set deviant information of module 83 is set, and the numbering of each member carrier of current terminal equipment institute polymerization, determine the PDCCH search volume that terminal equipment is exclusive.
On the other hand, the embodiment of the present invention also provides a kind of terminal equipment, and its structural representation as shown in Figure 9, comprising:
Determination module 91, for according to the strategy of deviant information and the applied definite PDCCH of network side search volume, determines the search volume of the exclusive PDCCH of terminal equipment;
Receiver module 92, in the determined PDCCH of determination module 91 search volume, the PDCCH information that receiving terminal apparatus is corresponding.
Wherein, receiver module 92, also for:
According to the strategy of deviant information and the applied definite PDCCH of network side search volume, before determining the search volume of the exclusive PDCCH of terminal equipment, receive the instruction across carrier dispatching pattern that enters of base station transmission at determination module 91.
Further, this terminal equipment also comprises:
Module 93 is set, for deviant information is set;
Wherein, deviant information, is specially a fixing integer value.
As previously mentioned, in concrete application scenarios, the numerical value that the set deviant information of module 93 is set is specially 3.
On this basis, determination module 91 is specifically for according to the set deviant information of module 93 is set, and the numbering of each member carrier of current terminal equipment institute polymerization, determines the PDCCH search volume that this terminal equipment is exclusive.
Need to further be pointed out that, receiver module 92, specifically comprises:
Blind check submodule 921, for carrying out blind check to the determined PDCCH of determination module 91 search volume;
Syndrome module 922, carries out verification for the PDCCH information that blind check submodule 921 is obtained by blind check;
Receive submodule 923, for when syndrome module 922 verification succeeds, the PDCCH information of reception verification succeeds.
And if the 922 verification failures of syndrome module confirm that this PDCCH information is not self corresponding PDCCH information, continue other PDCCH information to carry out verification.
By above-mentioned processing procedure, terminal equipment can find self exclusive PDCCH search volume accurately, and therefrom gets self corresponding PDCCH information.
Compared with prior art, the embodiment of the present invention has the following advantages:
By the technical scheme of the application embodiment of the present invention, base station is by the PDCCH search volume exclusive according to the definite terminal equipment of deviant information, send PDCCH information to terminal equipment, and terminal equipment is determined this PDCCH search volume according to deviant information equally, and obtain corresponding PDCCH information by this PDCCH search volume, thereby, reduce the blocking probability in PDCCH scheduling process, improve the reliability of PDCCH transmission.
Through the above description of the embodiments, those skilled in the art can be well understood to the embodiment of the present invention and can realize by hardware, and the mode that also can add necessary general hardware platform by software realizes.Based on such understanding, the technical scheme of the embodiment of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise that each implements the method described in scene in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) carry out the embodiment of the present invention in some instructions.
It will be appreciated by those skilled in the art that accompanying drawing is a schematic diagram of preferably implementing scene, the module in accompanying drawing or flow process might not be that the enforcement embodiment of the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device of implementing in scene can be distributed in the device of implementing scene according to implementing scene description, also can carry out respective change and be arranged in the one or more devices that are different from this enforcement scene.The module of above-mentioned enforcement scene can be merged into a module, also can further split into multiple submodules.
The invention described above embodiment sequence number, just to describing, does not represent the quality of implementing scene.
Disclosed is above only the several concrete enforcement scene of the embodiment of the present invention, and still, the embodiment of the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into the traffic limits scope of the embodiment of the present invention.
Claims (14)
1. a transmission method for physical downlink control channel PDCCH information, is characterized in that, comprises the following steps:
Base station is according to deviant information, and the numbering of each member carrier of current terminal equipment institute polymerization, determines the PDCCH search volume that terminal equipment is exclusive;
Described base station sends PDCCH information by described PDCCH search volume to described terminal equipment;
Described deviant information, is specially deviant information default in described base station;
Wherein, described deviant information, is specially a fixing integer value.
2. the method for claim 1, is characterized in that, described base station also comprises before determining the exclusive PDCCH search volume of terminal equipment according to deviant information:
Described base station sends the instruction entering across carrier dispatching pattern to described terminal equipment.
3. the method for claim 1, is characterized in that, the numerical value of described deviant information is specially 3.
4. a base station, is characterized in that, comprising:
Determination module, for according to the set deviant information of module is set, and the numbering of each member carrier of current terminal equipment institute polymerization, determine the PDCCH search volume that terminal equipment is exclusive;
Sending module, for sending PDCCH information by the determined PDCCH of described determination module search volume to described terminal equipment;
Module is set, for deviant information is set;
Wherein, described deviant information, is specially a fixing integer value.
5. base station as claimed in claim 4, is characterized in that, described sending module, also for:
Before determining the exclusive PDCCH search volume of terminal equipment according to deviant information at described determination module, send the instruction entering across carrier dispatching pattern to described terminal equipment.
6. base station as claimed in claim 4, is characterized in that, the numerical value of described deviant information is specially 3.
7. a transmission method for PDCCH information, is characterized in that, comprises the following steps:
Terminal equipment is according to the strategy of deviant information and the applied definite PDCCH of network side search volume, determines the search volume of self exclusive PDCCH;
Wherein, described terminal equipment is according to described deviant information, and the numbering of each member carrier of current described terminal equipment institute polymerization, determines the PDCCH search volume that described terminal equipment is exclusive;
Described terminal equipment, in the described PDCCH search volume of determining, receives self corresponding PDCCH information;
Described deviant information, is specially deviant information default in described terminal equipment;
Wherein, described deviant information, is specially a fixing integer value.
8. method as claimed in claim 7, is characterized in that, described terminal equipment is according to the strategy of deviant information and the applied definite PDCCH of network side search volume, before determining the search volume of self exclusive PDCCH, also comprises:
Described terminal equipment receives the instruction across carrier dispatching pattern that enters of base station transmission.
9. method as claimed in claim 7, is characterized in that, the numerical value of described deviant information is specially 3.
10. method as claimed in claim 7, is characterized in that, described terminal equipment, in the described PDCCH search volume of determining, receives self corresponding PDCCH information, is specially:
Described terminal equipment carries out blind check to the described PDCCH search volume of determining;
The PDCCH information that described terminal equipment obtains blind check is carried out verification;
In the time of verification succeeds, described terminal equipment receives the PDCCH information of described verification succeeds.
11. 1 kinds of terminal equipments, is characterized in that, comprising:
Determination module, for according to the strategy of deviant information and the applied definite PDCCH of network side search volume, determines the search volume of the exclusive PDCCH of described terminal equipment;
Wherein, described terminal equipment is according to described deviant information, and the numbering of each member carrier of current described terminal equipment institute polymerization, determines the PDCCH search volume that described terminal equipment is exclusive;
Receiver module, in the determined described PDCCH of described determination module search volume, receives the corresponding PDCCH information of described terminal equipment;
Module is set, for deviant information is set;
Wherein, described deviant information, is specially a fixing integer value.
12. terminal equipments as claimed in claim 11, is characterized in that, described receiver module, also for:
According to the strategy of deviant information and the applied definite PDCCH of network side search volume, before determining the search volume of the exclusive PDCCH of described terminal equipment, receive the instruction across carrier dispatching pattern that enters of base station transmission at described determination module.
13. terminal equipments as claimed in claim 11, is characterized in that, the numerical value of described deviant information is specially 3.
14. terminal equipments as claimed in claim 11, is characterized in that, described receiver module, specifically comprises:
Blind check submodule, for carrying out blind check to the determined described PDCCH of described determination module search volume;
Syndrome module, carries out verification for the PDCCH information that described blind check submodule is obtained by blind check;
Receive submodule, for when the described syndrome module verification succeeds, receive the PDCCH information of described verification succeeds.
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| CN109714140B (en) * | 2012-11-01 | 2021-11-30 | 华为技术有限公司 | Method and apparatus for determining control channel search space |
| CN104396325B (en) * | 2013-01-18 | 2019-04-05 | 华为技术有限公司 | A kind of method and apparatus of determining EPDCCH candidate |
| WO2019047229A1 (en) * | 2017-09-11 | 2019-03-14 | Zte Corporation | Method and apparatus for control channel information transmission |
| CN110536420B (en) * | 2018-05-23 | 2022-04-01 | 中国移动通信有限公司研究院 | Method and equipment for configuring time domain detection position of physical downlink control channel |
| CN110972291B (en) | 2018-09-29 | 2022-07-05 | 大唐移动通信设备有限公司 | Method for determining search space of carrier, terminal and network equipment |
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| CN101610564A (en) * | 2009-04-29 | 2009-12-23 | 中兴通讯股份有限公司 | A kind of transmission of Downlink Control Information and detection method |
| CN101651996A (en) * | 2009-09-17 | 2010-02-17 | 中兴通讯股份有限公司 | Method and system for transmitting index of component carrier and control format indicating value |
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