CN106301674B

CN106301674B - A kind of blind detection method and device polymerizeing carrier wave

Info

Publication number: CN106301674B
Application number: CN201510266718.XA
Authority: CN
Inventors: 胡丽洁; 沈晓冬; 侯雪颖
Original assignee: China Mobile Communications Group Co Ltd
Current assignee: China Mobile Communications Group Co Ltd
Priority date: 2015-05-22
Filing date: 2015-05-22
Publication date: 2019-11-29
Anticipated expiration: 2035-05-22
Also published as: CN106301674A

Abstract

The present invention provides a kind of blind detection method and device for polymerizeing carrier wave, and the blind detection method applied to base station side comprises determining that the first control channel unit CCE number where the physical downlink control channel PDCCH in polymerization carrier wave on a default member carrier；It is numbered according to the first CCE, the 2nd CCE where constructing the PDCCH in the polymerization carrier wave on other member carriers numbers the corresponding relationship between the first CCE number, so that the 2nd CCE where the first CCE number where PDCCH on the default member carrier that user equipment is obtained according to the corresponding relationship and blind examination determines the PDCCH on other described member carriers is numbered, and corresponding member carrier is detected according to the 2nd CCE number by the user equipment.The blind detection method of the embodiment of the present invention can substantially reduce blind examination number, save the complexity and power consumption of terminal.

Description

A kind of blind detection method and device polymerizeing carrier wave

Technical field

The present invention relates to wireless communication technology field, in particular to a kind of blind detection method and device for polymerizeing carrier wave.

Background technique

The effect of down control channel is to some user or certain user's transmitting physical layer control signaling, in order to improve The validity of the utilization of resources guarantees the reliability of control information transmission simultaneously, and control channel also joined simply in LTE system Link circuit self-adapting function.This function is realized by defining different polymerization grades, traditional PDCCH (physical down Control channel) support 4 kinds of format (format), the physical resource grade of corresponding 4 transmission, as shown in table 1, by what is carried DCI (Downlink Control Information) bit number is constant, then with the variation of PDCCH format, code that DCI information is encoded Rate will reduce, to reduce SNR (signal-to-noise ratio) requirement, obtain more reliable transmission performance；For those channel conditions compared with Good user, using less CCE (control channel unit) quantity, can obtain reliable transmission can also save physical resource.

The format that 1 PDCCH of table is supported

PDCCH format	CCE quantity	REG quantity	PDCCH bit quantity
				0	1	9	72
1	2	18	144
				2	4	36	288
3	8	72	576

One of important function of control channel is PDSCH (Physical Downlink Shared Channel) corresponding to instruction user UE and will Position of the PUSCH to be sent (Physical Uplink Shared Channel) in entire subframe, but can to find its first right for UE needs The PDCCH (Physical Downlink Control Channel) answered.LTE allows UE to obtain the PDCCH of oneself by the way of blind Detecting, passes through definition One group of limited position CCE positions the search space of each UE, rather than carries out blind examination in all positions CCE, can subtract The complexity of PDCCH required for few UE is obtained.

Search space is divided into public search space (Common Search Space, CSS) and dedicated search space (UE Specific Search Space) two kinds.Public search space can control information, example to one group or all UE transmission Such as system information, paging information etc., power control commands are also required to one group of UE and receive.All UE can monitor public search space Information is controlled to obtain.Unlike unicast transmission, CSS cannot be directed to some UE as SSS and take link circuit self-adapting, it It needs to guarantee that worst UE can also be received, therefore the polymerization grade of CSS only supports 4 and 8, and only supports size the smallest several A DCI format, 0/1A/3/3A and 1C do not support those to correspond to the DCI format of the transmission mode of spatial reuse.In common search Spatially, UE will search for format 1A and 1C, can also configure UE search format 3 and 3A, but they are identical as 1A format, Bu Huizeng Add too many additional complexity.The number of blind examination does not consider same size difference RNTI (radio network temporary identifier) scrambled feelings Condition.

Dedicated search space is for specific UE transmission control information, according to the difference of channel condition etc., the polymerization etc. of UE Grade can be 1,2,4 or 8 any one.In order to control the complexity of blind Detecting, UE does not need to simultaneously scan for index definition DCI format.In UE dedicated search space, UE will search for format 0 and format 1A always, and in addition to this UE may also need to receive Another format, such as format 1, format 1B, format 1D, format 2/2A/2B etc. depend on eNB (evolved base station) and match for UE The PDSCH transmission mode set.

In R8 and R9, the corresponding candidate number in the search space of different polymerization grades considers to difference as shown in the table The detection of DCI format, public search space need 12 blind examinations, and UE dedicated search space needs 32 blind examinations.

In R10, when being configured with carrier wave polymerization, the blind examination that UE is needed to be implemented is almost as the number of carrier wave of configuration is linear Increase.The maximum blind examination number that UE is needed to be implemented be 44 times to Pcell, the downlink SCC to each activation is 32 times.If Some carrier wave is configured with Uplink MIMO (multiple-input and multiple-output), needs to increase by 16 times additional blind examinations.

With the increase of number of carrier wave, if not introducing the measure of blind examination complexity reduction, when the number of polymerization carrier wave reaches When to 32, blind examination number will be more than 1000 times, and the complexity and power consumption of terminal will all greatly increase.

Summary of the invention

The purpose of the present invention is to provide a kind of blind detection methods and device for polymerizeing carrier wave, solve blind examination number and excessively lead The problem of causing power consumption of terminal to increase, reduces the complexity of blind examination, thus greatly reduces blind examination number, reduce the power consumption of terminal.

In order to achieve the above object, the embodiment of the present invention provides a kind of blind detection method for polymerizeing carrier wave, is applied to base station side, Include:

Determine the first control letter where the physical downlink control channel PDCCH in polymerization carrier wave on a default member carrier Road unit CCE number；

It is numbered according to the first CCE, constructs the 2nd CCE where the PDCCH in the polymerization carrier wave on other member carriers Corresponding relationship between number and the first CCE number, so that user equipment is obtained according to the corresponding relationship and blind examination Default member carrier on PDCCH where the first CCE number determine where the PDCCH on other described member carriers the Two CCE number, and corresponding member carrier is detected according to the 2nd CCE number by the user equipment.

Wherein, the default member carrier is in the first member carrier or the polymerization carrier wave in the polymerization carrier wave The highest member carrier of polymerization grade.

Wherein, where the physical downlink control channel PDCCH in the determining polymerization carrier wave on a default member carrier First control channel unit CCE number, specifically:

Determine the first CCE number where the PDCCH in the polymerization carrier wave on first member carrier.

Wherein, described to be numbered according to the first CCE, construct the PDCCH in the polymerization carrier wave on other member carriers 2nd CCE at place numbers the corresponding relationship between the first CCE number, specifically includes:

If the CCE number where the PDCCH on the first member carrier is the whole of the polymerization grade of other member carriers Several times, then the 2nd CCE where the PDCCH on other member carriers is numbered and the place PDCCH on the first member carrier The first CCE number it is identical；

If the CCE number where the PDCCH on the first member carrier is not the polymerization grade of other member carriers Integral multiple, then first available from the first CCE number and CCE number be the carrier wave polymerization grade integral multiple CCE number is that the 2nd CCE where the PDCCH on the carrier wave is numbered.

Wherein, where the physical downlink control channel PDCCH in the determining polymerization carrier wave on a default member carrier First control channel unit CCE number, specifically includes:

Obtain the highest member carrier of polymerization grade in the polymerization carrier wave, and from the highest carrier wave of the polymerization grade One member carrier of middle selection；

Determine the first CCE number where the PDCCH on the highest member carrier of the polymerization grade.

Determine the 2nd CCE number and the highest load of the polymerization grade where the PDCCH on other described member carriers The first CCE number where PDCCH on wave is identical.

Wherein, the blind detection method further include:

When being scheduled to the first member carrier of user equipment, the load of cross-carrier scheduling is multiplexed in the first member carrier Wave instructions field CIF, the CIF is used to indicate the highest member carrier of polymerization grade in the polymerization carrier wave, so that described User equipment can determine the highest member carrier of polymerization grade according to the CIF.

Wherein, if where any member carrier wave corresponds to the PDCCH on the default member carrier in the polymerization carrier wave CCE number is not present, then carries out numbering cycle using available CCE of the cycle labeling method to the member carrier.

The embodiment of the present invention also provides a kind of blind detection method for polymerizeing carrier wave, is applied to user equipment side, comprising:

Obtain other member carriers that the first CCE where presetting the PDCCH on member carrier is numbered with polymerize in carrier wave On PDCCH where the 2nd CCE number between corresponding relationship；

Determine the default member carrier；

Blind examination is carried out to the default member carrier, determines the first CCE where the PDCCH on the default member carrier Number；

It is numbered according to the corresponding relationship and the first CCE, where the PDCCH on other determining described member carriers 2nd CCE number detects corresponding member carrier according to determining the 2nd CCE number.

Wherein, when the default member carrier is first member carrier, the default member in described pair of polymerization carrier wave is carried Wave carries out blind examination, determines the first CCE number where the PDCCH on the default member carrier, specifically:

Blind examination is carried out to the first member carrier in the polymerization carrier wave, determines the PDCCH on the first member carrier First CCE at place is numbered.

Wherein it is determined that the default member carrier, specifically includes:

Blind examination is carried out to the first member carrier of polymerization carrier wave, where determining the PDCCH on the first member carrier CCE numbers and indicates the CIF of the highest member carrier of polymerization grade in the polymerization carrier wave；

The highest member carrier of the polymerization grade, highest one of the polymerization grade are determined according to the CIF Member carrier is the default member carrier.

Wherein, described that blind examination is carried out to the default member carrier, determine the place PDCCH on the default member carrier The first CCE number, specifically include:

Highest to a polymerization grade member carrier carries out blind examination, determine highest one of the polymerization grade at The first CCE number where PDCCH on member's carrier wave.

The embodiment of the present invention also provides a kind of blind detection method for polymerizeing carrier wave, is applied to base station side, comprising:

In advance it is the preset rules of user device configuration blind examination, enables user equipment according to the preset rules to poly- It closes carrier wave and carries out blind examination；Wherein, the preset rules be indicate user equipment to polymerization carrier wave in all or part of carrier wave into When row blind examination, preset candidate resource is only detected.

Wherein, the preset candidate resource is one or more of the candidate resource of the polymerization carrier wave, and described The number of preset candidate resource is less than all candidate resources of the polymerization carrier wave.

Obtain the preset rules of blind examination；

Blind examination is carried out to polymerization carrier wave according to the preset rules；Wherein, the preset rules are instruction user equipment pair When polymerizeing all or part of carrier wave progress blind examination in carrier wave, preset candidate resource is only detected.

The embodiment of the present invention also provides a kind of blind examination device for polymerizeing carrier wave, is applied to base station side, comprising:

Number determining module, for determining the Physical Downlink Control Channel in polymerization carrier wave on a default member carrier The first control channel unit CCE number where PDCCH；

Relationship determination module constructs in the polymerization carrier wave on other member carriers for being numbered according to the first CCE Corresponding relationship between the 2nd CCE number where PDCCH and the first CCE number, so that user equipment is according to described right Should be related to and default member carrier that blind examination obtains on PDCCH where the first CCE number determine that other described members carry The 2nd CCE number where PDCCH on wave, and numbered according to the 2nd CCE to corresponding member by the user equipment Carrier wave is detected.

Wherein, the number determining module includes:

First numbers and determines submodule, for where determining the PDCCH in the polymerization carrier wave on first member carrier First CCE number.

Wherein, the relationship determination module includes:

First relationship determines submodule, if the CCE number where the PDCCH on the first member carrier is other The integral multiple of the polymerization grade of member carrier, then where the PDCCH on other member carriers the 2nd CCE number with it is described first The first CCE number where PDCCH on member carrier is identical；

Second relationship determines submodule, if the CCE number where the PDCCH on the first member carrier is not it The integral multiple of the polymerization grade of his member carrier, then from the first CCE number first it is available and CCE number is the load The CCE number of the integral multiple of the polymerization grade of wave is the 2nd CCE number where the PDCCH on the carrier wave.

Wherein, the number determining module includes:

First member's determining module, for obtaining the highest member carrier of polymerization grade in the polymerization carrier wave, and from institute State one member carrier of middle selection of the highest carrier wave of polymerization grade；

Second numbers and determines submodule, for where determining the PDCCH on the highest member carrier of the polymerization grade First CCE number.

Wherein, the relationship determination module includes:

Second relationship determines submodule, numbers for the 2nd CCE where determining the PDCCH on other described member carriers It is identical as the first CCE number where the PDCCH on the highest carrier wave of the polymerization grade.

Wherein, the blind examination device further include:

Indicating module, for being multiplexed in the first member carrier when being scheduled to the first member carrier of user equipment Carrier wave the instructions field CIF, the CIF of cross-carrier scheduling are used to indicate the highest member of polymerization grade in the polymerization carrier wave Carrier wave enables the user equipment to determine the highest member carrier of polymerization grade according to the CIF.

The embodiment of the present invention also provides a kind of blind examination device for polymerizeing carrier wave, is applied to user equipment side, comprising:

Module is obtained, numbered for the first CCE where obtaining the PDCCH on default member carrier and is polymerize in carrier wave The corresponding relationship between the 2nd CCE number where PDCCH on other member carriers；

First blind examination module, for determining the default member carrier；

Second blind examination module determines on the default member carrier for carrying out blind examination to the default member carrier The first CCE number where PDCCH；

Detection module determines on other described member carriers for being numbered according to the corresponding relationship and the first CCE PDCCH where the 2nd CCE number, corresponding member carrier is detected according to determining 2nd CCE number.

Wherein, when the default member carrier is first member carrier, the second blind examination module includes:

First blind examination submodule determines the head for carrying out blind examination to the first member carrier in the polymerization carrier wave The first CCE number where PDCCH on a member carrier.

Wherein, the first blind examination module includes:

Second blind examination submodule carries out blind examination for the first member carrier to polymerization carrier wave, determines the first member CCE where PDCCH on carrier wave numbers and indicates the highest member carrier of polymerization grade in the polymerization carrier wave CIF；

Third blind examination submodule, it is described for determining the highest member carrier of the polymerization grade according to the CIF The highest member carrier of polymerization grade is the default member carrier.

Wherein, the second blind examination module includes:

4th blind examination submodule, for a member carrier highest to the polymerization grade carry out blind examination, determine described in The first CCE number where PDCCH on the highest member carrier of polymerization grade.

Sending module is configured, for being in advance the preset rules of user device configuration blind examination, enable user equipment root Blind examination is carried out to polymerization carrier wave according to the preset rules；Wherein, the preset rules are instruction user equipment in polymerization carrier wave All or part of carrier wave carry out blind examination when, only detect preset candidate resource.

Rule acquisition module, for obtaining the preset rules of blind examination；

Detection module is received, for carrying out blind examination to polymerization carrier wave according to the preset rules；Wherein, the preset rules When carrying out blind examination to all or part of carrier wave in polymerization carrier wave for instruction user equipment, preset candidate resource is only detected.

Above-mentioned technical proposal of the invention at least has the following beneficial effects:

In the blind detection method and device of the polymerization carrier wave of the embodiment of the present invention, the different members by establishing polymerization carrier wave are carried The relationship between CCE number where the PDCCH of wave carrying, user only need to carry out few members' carrier wave blind examination, and then really CCE number where the PDCCH of other fixed member carriers, so as to substantially reduce the number of blind examination, reaching reduces user's function The purpose of consumption and complexity；Or the blind examination candidate resource by default settings few members' carrier wave, and then reduce partial carrier wave Blind examination candidate resource achieve the purpose that reduce user's power consumption and complexity so as to substantially reduce the number of blind examination.

Detailed description of the invention

Fig. 1 shows the basic step schematic diagrames of the blind detection method of the polymerization carrier wave of the base station side of the embodiment of the present invention；

Fig. 2 indicates the basic step schematic diagram of the blind detection method of the polymerization carrier wave of the user equipment side of the embodiment of the present invention；

Fig. 3 indicates the schematic diagram of scheme one in the blind detection method of the polymerization carrier wave of the embodiment of the present invention；

Fig. 4 indicates the schematic diagram of scheme two in the blind detection method of the polymerization carrier wave of the embodiment of the present invention；

Fig. 5 indicates the composite structural diagram of the blind examination device of the polymerization carrier wave of the base station side of the embodiment of the present invention；

Fig. 6 indicates the composite structural diagram of the blind examination device of the polymerization carrier wave of the user equipment side of the embodiment of the present invention.

Specific embodiment

To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool Body embodiment is described in detail.

The present invention is high for blind examination complexity in the prior art, and excessively caused terminal complexity and power consumption increase blind examination number The problem of adding, provides a kind of blind detection method and device for polymerizeing carrier wave, by the different members carriers carry for establishing polymerization carrier wave PDCCH where CCE number between relationship, user only need to few members' carrier wave carry out blind examination, and then determine other CCE number where the PDCCH of member carrier, so as to substantially reduce the number of blind examination, reaching reduces user's power consumption and answers The purpose of miscellaneous degree；Or the blind examination candidate resource by default settings few members' carrier wave, and then reduce the blind examination of partial carrier wave Candidate resource achievees the purpose that reduce user's power consumption and complexity so as to substantially reduce the number of blind examination.

It should be noted that the polymerization carrier wave in the embodiment of the present invention is carrying physical downlink control channel PDCCH information Carrier wave, include multiple member carriers in the polymerization carrier wave；The application is specifically retouched from base station side and user equipment side respectively respectively State the blind detection method.

Specifically, as shown in Figure 1, the embodiment of the present invention provides a kind of blind examination side of polymerization carrier wave applied to base station side Method, comprising:

Step 11, the where the physical downlink control channel PDCCH in polymerization carrier wave on a default member carrier is determined One control channel unit CCE number；

Step 12, it is numbered according to the first CCE, constructs described polymerize where the PDCCH in carrier wave on other member carriers Corresponding relationship between 2nd CCE number and the first CCE number, so that user equipment is according to the corresponding relationship and blind The first CCE number where examining the PDCCH on obtained default member carrier determines the PDCCH institute on other described member carriers The 2nd CCE number, and by the user equipment according to the 2nd CCE number corresponding member carrier is detected.

It is corresponding, as shown in Fig. 2, the embodiment of the present invention also provides a kind of blind examination applied to user equipment side polymerization carrier wave Method, comprising:

Step 21, obtain the first CCE number where the PDCCH on default member carrier with polymerize in carrier wave other at The corresponding relationship between the 2nd CCE number where PDCCH on member's carrier wave；

Step 22, the default member carrier is determined；

Step 23, blind examination is carried out to the default member carrier, where determining the PDCCH on the default member carrier First CCE number；

Step 24, it is numbered, is determined on other described member carriers according to the corresponding relationship and the first CCE The 2nd CCE number where PDCCH detects corresponding member carrier according to determining the 2nd CCE number.

In the above embodiment of the present invention, the position CCE is determined for compliance with following principle: according to the PDCCH institute on member carrier The position CCE Base Serial Number must be the member carrier polymerization grade integral multiple, the minimum member carrier it is poly- 1 times for closing grade.I.e. if the polymerization grade of a member carrier is 4, the position CCE where PDCCH on the member carrier The minimum number 4 of Base Serial Number, or number 8, number 12, number 16 etc., and be selection CCE number 4, number 8, volume Numbers 12 or number 16 be used as the initial position, be preset by base station, i.e., be that can determine that it rises according to existing rule The CCE of beginning position is numbered.It should be noted that the polymerization grade of carrier wave can be 1,2,4 or 8 according to the difference of channel condition Any one of.

In specific embodiments of the present invention, base station determines the first CCE where the PDCCH on a default member carrier first Number, where then determining the PDCCH on other member carriers according to the polymerization grade of mentioned above principle and other member carriers 2nd CCE number；To the relationship between the first CCE of building number and the 2nd CCE number, and it is sent to user equipment；Then use Family equipment is after detecting the first CCE number, according to its corresponding relationship, just can determine that the CCE number of other member carriers, thus Subsequent detection is carried out, achievees the purpose that reduce blind examination number.

It should be noted that base station can be sent in real time after determining above-mentioned corresponding relationship by the PDCCH on carrier wave User equipment side；Can also by high-level signaling it is semi-static be sent to user equipment side；Also it may be implemented to be stored in user and set Standby side triggers to corresponding relationship is obtained when meeting a preset condition, carries out corresponding operating；Above-mentioned three kinds of modes are suitable for this Apply and cut both ways, can be not specifically limited herein determines according to actual conditions in practical applications.

Specifically, the embodiment of the present invention provides two schemes to construct pair between the first CCE number and the 2nd CCE number Should be related to: scheme one: the default member carrier is the first member carrier in the polymerization carrier wave；Scheme two: the polymerization The highest member carrier of polymerization grade in carrier wave.

Scheme one is specifically described first below:

In scheme one, the step 11 of base station side specifically:

Step 111, the first CCE number where the PDCCH in the polymerization carrier wave on first member carrier is determined.

Step 12 specifically includes:

Step 121, if the CCE number where PDCCH on the first member carrier is the polymerization of other member carriers The integral multiple of grade, then in the 2nd CCE number and the first member carrier where the PDCCH on other member carriers The first CCE number where PDCCH is identical；

Step 122, if the CCE number where PDCCH on the first member carrier is not the poly- of other member carriers The integral multiple of grade is closed, then first available from the first CCE number and CCE number is the polymerization grade of the carrier wave The CCE number of integral multiple is the 2nd CCE number where the PDCCH on the carrier wave.

In short, if it is on other member carriers that the initial position CCE where PDCCH on first member carrier, which meets, Polymerization grade integral multiple relationship, then the PDCCH on other member carriers starting CCE number with the first member carrier It is identical；For being unsatisfactory for the member carrier of integral multiple relation, is numbered according to the CCE of first member carrier, continue to increase, by first CCE number that is a available and meeting integral multiple relation, the position starting CCE of the PDCCH as the member carrier.It needs to illustrate It is that for CCE number described herein i.e. for recognizing the position CCE, the meaning that both is indicated is consistent；And involved in application First CCE number and the 2nd CCE number broadly refer to all volumes of the position CCE where the PDCCH on a member carrier Number, but since the number of its initial position can uniquely determine its position CCE, therefore in the narrow sense for, the first CCE is compiled Number and the 2nd CCE number refer both to the first number of the corresponding position CCE of its member carrier.

It is corresponding, the step 23 of user equipment side specifically:

Step 231, blind examination is carried out to the first member carrier in the polymerization carrier wave, determined on the first member carrier PDCCH where the first CCE number.

In short, user equipment carries out blind examination to first member carrier, where obtaining the PDCCH on first member carrier The corresponding relationship of first CCE number and the first CCE number and the 2nd CCE number, and then determine the PDCCH on other member carriers 2nd CCE at place is numbered, to can substantially reduce detection number when detecting to other member carriers, is reduced user and is set Standby power consumption.

Further, if any member carrier wave corresponds to the PDCCH institute on the default member carrier in the polymerization carrier wave CCE number be not present, then using cycle labeling method to the available CCE of member carrier progress numbering cycle.For example, first The available CCE length of carrier wave is 100, and the available CCE length of the second carrier wave is 80, and first carrier is default carrier wave, if when first CCE number where PDCCH on carrier wave is when being 90, and CCE number is unsatisfactory for the CCE number of the second carrier wave and requires, then the CCE number where PDCCH on nd carrier should successively be found backward since CCE90 first it is available and meet the requirements Since the length of the available CCE of the second carrier wave is 80 the number of CCE90 is then not present, at this point, cycle labeling method should be used in CCE The CCE that number is 0 is labeled as 81, the CCE that number is 1 is labeled as 82, and so on, the CCE that can be then needed Number.

It is illustrated below:

As shown in Figure 3, it is assumed that there are 10 member carrier CC to carry out carrier wave polymerization；

The polymerization grade of PDCCH on CC0 is that the polymerization grade of 4, CC1-CC9 is respectively 2,4,4,8,8,1,1,2,2；

Assuming that base station determines that the PDCCH of CC0 is located on the CCE that Base Serial Number is 4 according to mapping ruler；

First carrier wave integral multiple relation is met since polymerization grade is less than or equal to 4 for CC1-CC4, CC6-CC9 CCE numbers the integral multiple relation necessarily satisfying for these carrier waves, therefore, the initial position of the CCE where their PDCCH and CC0 It is identical, because CCE 4 meets their initial position rule；If the available CCE quantity of some carrier waves is less than first carrier wave, And the CCE number of first carrier wave is not present in these carrier waves, then the CCE number of other carrier waves is determining using the number recycled Form, i.e., all CCE continue to number after numbering from first CCE, until number is equal to first carrier wave.

Since polymerization grade is 8, the CCE number of initial position needs the multiple for 8 therefore to take greater than CC0 by CC4, CC5 The CCE of first of the initial position PDCCH CCE index 4 multiple for meeting 8 carry out the mapping of PDCCH, i.e. CCE index is 8 Position.If CCE number has arrived ending, continue to number from first CCE, number until finding first carrier wave CCE First meets the position CCE of rule.

PDCCH of the user at receiving end on first carrier wave of blind Detecting, and obtain first carrier wave PDCCH corresponding Beginning CCE number information；

User on other carrier waves carry out blind examination when, the position CCE where the PDCCH of each polymerization grade be it is determining, Therefore blind examination number is reduced to each polymerization grade and there was only 1, then corresponding blind examination number is up to 4 in addition to first carrier wave, Compared to 32 blind examinations on each carrier wave, blind examination number is greatly reduced.

Continuous upper example is held, the following specifically describes schemes two:

In scheme two, base station side step 11 is specifically included:

Step 112, the highest member carrier of polymerization grade in the polymerization carrier wave is obtained, and from the polymerization grade highest Carrier wave one member carrier of middle selection；

Step 113, the first CCE number where the PDCCH on the highest member carrier of the polymerization grade is determined.

Step 12 specifically includes:

Step 122, the 2nd CCE where determining the PDCCH on other described member carriers is numbered and the polymerization grade The first CCE number where PDCCH on highest carrier wave is identical.

On the other hand since only base station side knows which the highest member carrier of its polymerization grade is, and user sets Standby side is not known, therefore blind detection method provided in an embodiment of the present invention further include:

Step 13, it when being scheduled to the first member carrier of user equipment, is multiplexed in the first member carrier cross-carrier Carrier wave the instructions field CIF, the CIF of scheduling are used to indicate the highest member carrier of polymerization grade in the polymerization carrier wave, The user equipment is enabled to determine the highest member carrier of polymerization grade according to the CIF.

Correspondingly, the step 22 of user equipment side specifically:

Step 221, blind examination is carried out to the first member carrier of polymerization carrier wave, determined on the first member carrier CCE where PDCCH numbers and indicates the CIF of the highest member carrier of polymerization grade in the polymerization carrier wave；

Step 222, the highest member carrier of the polymerization grade is determined according to the CIF, the polymerization grade is most A high member carrier is the default member carrier.

Step 23 specifically includes:

Step 231, a member carrier highest to the polymerization grade carries out blind examination, determines the polymerization grade highest A member carrier on PDCCH where the first CCE number.

In scheme two, base station determines that being scheduled to the highest member of polymerization grade in the polymerization carrier wave of user equipment carries first Wave therefrom selects a member carrier, is then multiplexed the domain CIF, determines the CIF of the highest member carrier of the polymerization grade Value, and then determine the first CCE number where the PDCCH on the highest member carrier of the polymerization grade, due to the member The polymerization grade highest of carrier wave, then the 2nd CCE number where the PDCCH on other member carriers is numbered with above-mentioned first CCE It is identical.From the point of view of user equipment side, it is firstly received first member carrier, carries out blind examination simultaneously according to the rule of existing LTE R12 The highest member carrier of polymerization grade is determined according to the domain CIF, and blind examination is carried out to the member carrier and is determined on the member carrier PDCCH where CCE number, and then determine that the corresponding CCE of other member carriers is numbered according to corresponding relationship, then successively to it He carries out blind examination by member carrier, the position CCE and the highest member carrier of its polymerization grade due to subsequent member carrier The position CCE it is identical, substantially reduce blind examination number.

Further, if in the polymerization carrier wave where the corresponding PDCCH preset on member carrier of any member carrier wave CCE number is not present, then carries out numbering cycle using available CCE of the cycle labeling method to the member carrier, i.e., if some are carried The available CCE quantity of wave is less than the CCE quantity of the carrier wave of the maximum polymerization grade of CIF instruction, and the PDCCH of maximum polymerization grade Corresponding CCE Base Serial Number is not present in these carrier waves, then the number shape of the CCE number of other carrier waves determined using circulation Formula, i.e., all CCE continue to number after numbering from first CCE, until number is equal to the carrier wave of maximum polymerization grade.

It should be noted that the initial position CCE in scheme two where the PDCCH of the carrier wave of first member detection can be with Other member carriers are identical, can also be different.I.e. if the polymerization grade of first member carrier is maximum, CIF value instruction Carrier wave is itself, and the initial position CCE where the PDCCH of his all carrier waves is identical as first carrier wave；Otherwise first member The position CCE where the PDCCH of carrier wave is different from other member carriers.

It is illustrated below:

Assuming that the variable number of the polymerization of current scheduling is 10, CC0 polymerization grade is 2, CC1~CC9 polymerization grade Respectively 2,4,4,8,8,1,1,2,2；Base station selected CC4 is as maximum polymerization grade carrier wave herein, then CIF be " 100 " (such as Shown in table 1).Base station is assigned with starting CCE of the CCE8 as CC4.Since CCE8 meets the polymerization grade of other all carrier waves The initial position of the relationship of integral multiple, the PDCCH of other all CC is CCE8.User's blind examination first goes out the PDCCH of CC0, Its CIF for indicating the highest CC of polymerization grade is read, in the case where the carrier wave of configuration polymerization number is 10, reads 100 just Mean that the corresponding carrier wave of maximum polymerization grade is CC4, then the PDCCH of user's blind examination CC4, and obtains its corresponding CCE and rise Begin number, and the corresponding initial position the CCE number of the PDCCH of other all carrier waves is all CCE8 with CC4 phase.

It should be noted that then 100 CC4 is only corresponded to since above-mentioned variable number is 10, and when variable number is 32,100 Tetra- carrier waves of CC4, CC12, CC20 and CC28 are then corresponded to, the method that the application takes is successively blind to this four carrier waves progress Inspection, if the carrier-grade of blind examination to a carrier wave is highest level, it is determined that the carrier wave is the highest carrier wave of polymerization grade；It is no Then, select wherein the highest carrier wave of polymerization grade as the highest carrier wave of polymerization grade in the polymerization carrier wave.

CIF	Corresponding CC index

000	0、8、16、24
		001	1、9、17、25
010	2、10、18、26
		011	3、11、19、27
100	4、12、20、28
		101	5、13、21、29
110	6、14、22、30
		111	7、15、23、31

The corresponding relationship of 1 CIF value of table and the CC of instruction

In order to preferably realize that above-mentioned purpose, the embodiment of the present invention also provide a kind of blind detection method for polymerizeing carrier wave, below Also this method is specifically described from base station side and user equipment side respectively:

The blind detection method of polymerization carrier wave applied to base station side includes:

Step 31, in advance it is the preset rules of user device configuration blind examination, enables user equipment according to described default Rule carries out blind examination to polymerization carrier wave；Wherein, the preset rules are to indicate user equipment to the whole or portion polymerizeing in carrier wave When sub-carrier carries out blind examination, preset candidate resource is only detected.

Specifically, candidate resource one or more of of the preset candidate resource for the polymerization carrier wave, and institute The number for stating preset candidate resource is less than all candidate resources of the polymerization carrier wave.

The blind detection method of polymerization carrier wave applied to user equipment side includes:

Step 41, the preset rules of blind examination are obtained；

Step 42, blind examination is carried out to polymerization carrier wave according to the preset rules；Wherein, the preset rules are instruction user When equipment carries out blind examination to all or part of carrier wave in polymerization carrier wave, preset candidate resource is only detected.

Preferably, in the above embodiment of the present invention by semi-static instruction user which carrier wave of high-level signaling still According to original regular blind examination, it is one of candidate that the blind examination of other carrier waves is reduced to a blind examination.It is not instructed to according to original On the carrier wave of regular blind examination, for user in blind examination, each polymerization grade only selects one of candidate resource to carry out blind examination, calculates Formula is still according to existing protocol, but corresponding 6,6,2,2 candidate resources of the polymerization grade of no longer blind examination 1,2,4,8 are one by one Detection, but only takes first candidate resource, or only takes some or certain several candidate resources, that is specifically taken to can be in advance It is definition or high-level signaling notice.

To sum up, in the blind detection method of polymerization carrier wave provided by the invention, by the different members carrier wave for establishing polymerization carrier wave The relationship between CCE number where the PDCCH of carrying, user only needs to carry out few members' carrier wave blind examination, and then determines CCE number where the PDCCH of other member carriers, so as to substantially reduce the number of blind examination, reaching reduces user's power consumption With the purpose of complexity；Or the blind examination candidate resource by default settings few members' carrier wave, and then reduce partial carrier wave Blind examination candidate resource achievees the purpose that reduce user's power consumption and complexity so as to substantially reduce the number of blind examination.

In order to preferably realize above-mentioned purpose, as shown in figure 5, the embodiment of the present invention also provides a kind of blind examination for polymerizeing carrier wave Device is applied to base station side, comprising:

Number determining module 51, for determining the Physical Downlink Control Channel in polymerization carrier wave on a default member carrier The first control channel unit CCE number where PDCCH；

Relationship determination module 52 constructs in the polymerization carrier wave on other member carriers for being numbered according to the first CCE Corresponding relationship between the 2nd CCE number where PDCCH and the first CCE number, so that user equipment is according to described right Should be related to and default member carrier that blind examination obtains on PDCCH where the first CCE number determine that other described members carry The 2nd CCE number where PDCCH on wave, and numbered according to the 2nd CCE to corresponding member by the user equipment Carrier wave is detected.

Specifically, in the above embodiment of the present invention, the default member carrier be in the polymerization carrier wave it is first at The highest member carrier of polymerization grade in member's carrier wave or the polymerization carrier wave.

Specifically, in the above embodiment of the present invention, the number determining module 51 includes:

Specifically, in the above embodiment of the present invention, the relationship determination module 52 includes:

Specifically, in the above embodiment of the present invention, the blind examination device further include:

Indicating module, for being added in the first member carrier when being scheduled to the first member carrier of user equipment The carrier wave instructions field CIF of the highest member carrier of polymerization grade in the one instruction polymerization carrier wave, so that the user sets It is standby that the highest member carrier of polymerization grade can be determined according to the CIF.

Specifically, in the above embodiment of the present invention, if the place PDCCH in the polymerization carrier wave on any member carrier wave CCE number be not present, then using cycle labeling method to the available CCE of member carrier progress numbering cycle.

It should be noted that the blind examination device for the polymerization carrier wave that the above embodiment of the present invention provides is using above-mentioned base station side Polymerization carrier wave blind detection method blind examination device, therefore above-mentioned base station side polymerization carrier wave blind detection method all embodiments and Its advantages are suitable for the blind examination device.

In order to preferably realize above-mentioned purpose, as shown in fig. 6, the embodiment of the present invention also provides a kind of blind examination for polymerizeing carrier wave Device is applied to user equipment side, comprising:

Module 61 is obtained, numbered for the first CCE where obtaining the PDCCH on default member carrier and is polymerize in carrier wave Other member carriers on PDCCH where the 2nd CCE number between corresponding relationship

First blind examination module 62, for determining the default member carrier；

Second blind examination module 63 determines on the default member carrier for carrying out blind examination to the default member carrier PDCCH where the first CCE number；

Detection module 64 determines other described member carriers for numbering according to the corresponding relationship and the first CCE On PDCCH where the 2nd CCE number, corresponding member carrier is detected according to determining 2nd CCE number.

Specifically, in the above embodiment of the present invention, when the default member carrier is first member carrier, described the Two blind examination modules 63 include:

Specifically, in the above embodiment of the present invention, the first blind examination module 62 includes:

Specifically, in the above embodiment of the present invention, the second blind examination module 63 includes:

It should be noted that the blind examination device for the polymerization carrier wave that the above embodiment of the present invention provides is set using above-mentioned user The blind examination device of the blind detection method of the polymerization carrier wave of standby side, therefore the blind detection method of the polymerization carrier wave of above-mentioned user equipment side is all Embodiment and its advantages are suitable for the blind examination device.

In order to preferably realize that above-mentioned purpose, the embodiment of the present invention also provide a kind of blind examination device for polymerizeing carrier wave, application In base station side, comprising:

Sending module is configured, for being in advance the preset rules of user device configuration blind examination, enables user equipment root Blind examination is carried out to polymerization carrier wave according to the preset rules；Wherein, the preset rules are instruction user equipment in polymerization carrier wave All or part of carrier wave carry out blind examination when, only detect preset candidate resource.

Specifically, the preset candidate resource is the candidate money of the polymerization carrier wave in the above embodiment of the present invention One or more of source, and the number of the preset candidate resource is less than all candidate resources of the polymerization carrier wave.

In order to preferably realize that above-mentioned purpose, the embodiment of the present invention also provide a kind of blind examination device for polymerizeing carrier wave, application In user equipment side, comprising:

Rule acquisition module, for obtaining the preset rules of blind examination；

To sum up, existing technology is linear increase blind examination number, and the embodiment of the present invention is by establishing different intercarriers The relationship between the CCE of PDCCH is carried, or reduces the blind examination candidate resource of partial carrier wave, blind examination number can be substantially reduced, Save the complexity and power consumption of terminal.

The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims

1. a kind of blind detection method for polymerizeing carrier wave, is applied to base station side characterized by comprising

Determine the first control channel list where the physical downlink control channel PDCCH in polymerization carrier wave on a default member carrier First CCE number, comprising:

Determine the first CCE number where the PDCCH in the polymerization carrier wave on first member carrier；Alternatively, obtaining described poly- The highest member carrier of polymerization grade in carrier wave is closed, and is carried from one member of the middle selection of the highest carrier wave of the polymerization grade Wave；Determine the first CCE number where the PDCCH on the highest member carrier of the polymerization grade；

It is numbered according to the first CCE, constructs the 2nd CCE number where the PDCCH in the polymerization carrier wave on other member carriers With the first CCE number between corresponding relationship so that user equipment obtained according to the corresponding relationship and blind examination it is pre- If the first CCE number where the PDCCH on member carrier determines second where the PDCCH on other described member carriers CCE number, and corresponding member carrier is detected according to the 2nd CCE number.

2. the blind detection method of polymerization carrier wave according to claim 1, which is characterized in that described to be compiled according to the first CCE Number, the 2nd CCE number where constructing the PDCCH in the polymerization carrier wave on other member carriers is numbered with the first CCE Between corresponding relationship, specifically include:

If the CCE number where the PDCCH on the first member carrier is the integral multiple of the polymerization grade of other member carriers, Then the 2nd CCE number where the PDCCH on other member carriers and first where the PDCCH on the first member carrier CCE number is identical；

If the CCE number where the PDCCH on the first member carrier is not the integer of the polymerization grade of other member carriers Times, then first available from the first CCE number and CCE number be the carrier wave polymerization grade integral multiple CCE The 2nd CCE where number is the PDCCH on the carrier wave is numbered.

3. the blind detection method of polymerization carrier wave according to claim 1, which is characterized in that described to be compiled according to the first CCE Number, the 2nd CCE number where constructing the PDCCH in the polymerization carrier wave on other member carriers is numbered with the first CCE Between corresponding relationship, specifically include:

In the 2nd CCE number and the highest carrier wave of the polymerization grade where PDCCH on other member carriers described in determining PDCCH where the first CCE number it is identical.

4. the blind detection method of polymerization carrier wave according to claim 3, which is characterized in that the blind detection method further include:

When being scheduled to the first member carrier of user equipment, the carrier wave that cross-carrier scheduling is multiplexed in the first member carrier refers to Show that domain CIF, the CIF are used to indicate the highest member carrier of polymerization grade in the polymerization carrier wave, so that the user Equipment can determine the highest member carrier of polymerization grade according to the CIF.

5. it is according to claim 1 polymerization carrier wave blind detection method, which is characterized in that if in the polymerization carrier wave it is any at Member's carrier wave correspond to the number of the CCE where the PDCCH on the default member carrier and is not present, then utilize cycle labeling method to this at The available CCE of member's carrier wave carries out numbering cycle.

6. a kind of blind detection method for polymerizeing carrier wave, is applied to user equipment side characterized by comprising

Obtain the first CCE number where the PDCCH on default member carrier on other member carriers polymerizeing in carrier wave The corresponding relationship between the 2nd CCE number where PDCCH；

Determine that the default member carrier, the default member carrier are the first member carrier polymerizeing in carrier wave or institute State the highest member carrier of polymerization grade in polymerization carrier wave；

Blind examination is carried out to the default member carrier, the first CCE where determining the PDCCH on the default member carrier is compiled Number；

It is numbered according to the corresponding relationship and the first CCE, determines second where the PDCCH on other described member carriers CCE number detects corresponding member carrier according to determining the 2nd CCE number, comprising:

When the default member carrier is the first member carrier in the polymerization carrier wave, determine first in the polymerization carrier wave The first CCE number where PDCCH on member carrier；

If the CCE number where the PDCCH on the first member carrier is not the integer of the polymerization grade of other member carriers Times, then first available from the first CCE number and CCE number be the carrier wave polymerization grade integral multiple CCE The 2nd CCE where number is the PDCCH on the carrier wave is numbered；

When a default member carrier member carrier highest for polymerization grade in the polymerization carrier wave,

Obtain the highest member carrier of polymerization grade in the polymerization carrier wave, and from the middle choosing of the highest carrier wave of the polymerization grade Select a member carrier；It determines the first CCE number where the PDCCH on the highest member carrier of the polymerization grade, determines Where PDCCH on other member carriers the 2nd CCE number with the highest carrier wave of the polymerization grade on PDCCH where First CCE number is identical.

7. the blind detection method of polymerization carrier wave according to claim 6, which is characterized in that headed by the default member carrier A member carrier, the described pair of default member carrier polymerizeing in carrier wave carry out blind examination, determine on the default member carrier The first CCE number where PDCCH, specifically:

Blind examination is carried out to the first member carrier in the polymerization carrier wave, determines the place PDCCH on the first member carrier The first CCE number.

8. the blind detection method of polymerization carrier wave according to claim 6, which is characterized in that determine the default member carrier, It specifically includes:

Blind examination is carried out to the first member carrier of polymerization carrier wave, the CCE where determining the PDCCH on the first member carrier is compiled Number and indicate it is described polymerization carrier wave in the highest member carrier of polymerization grade CIF；

The highest member carrier of the polymerization grade, the highest member of polymerization grade are determined according to the CIF Carrier wave is the default member carrier.

9. the blind detection method of polymerization carrier wave according to claim 8, which is characterized in that described to the default member carrier Blind examination is carried out, the first CCE number where the PDCCH on the default member carrier is determined, specifically includes:

A member carrier highest to the polymerization grade carries out blind examination, determines that the highest member of the polymerization grade carries The first CCE number where PDCCH on wave.

10. a kind of blind detection method for polymerizeing carrier wave, is applied to base station side characterized by comprising

In advance it is the preset rules of user device configuration blind examination, user equipment carries polymerization according to the preset rules Wave carries out blind examination；Wherein, the preset rules are to indicate that user equipment is blind to all or part of carrier wave progress in polymerization carrier wave When inspection, preset candidate resource is only detected；

Wherein, the preset rules include: the first CCE number obtained where presetting the PDCCH on member carrier and polymerize load The corresponding relationship between the 2nd CCE number where the PDCCH on other member carriers in wave；According to the corresponding relationship and The first CCE number determines the 2nd CCE number where the PDCCH on other described member carriers, according to determining 2nd CCE number detects corresponding member carrier.

11. the blind detection method of polymerization carrier wave according to claim 10, which is characterized in that the preset candidate resource is One or more of the candidate resource of the polymerization carrier wave, and the number of the preset candidate resource is carried less than the polymerization All candidate resources of wave.

12. a kind of blind examination device for polymerizeing carrier wave, is applied to base station side characterized by comprising

Number determining module, for determining the physical downlink control channel PDCCH institute in polymerization carrier wave on a default member carrier The first control channel unit CCE number；The number determining module includes:

First numbers and determines submodule, for determining first where the PDCCH in the polymerization carrier wave on first member carrier CCE number；

First member's determining module is gathered for obtaining the highest member carrier of polymerization grade in the polymerization carrier wave, and from described Close one member carrier of middle selection of the highest carrier wave of grade；Second numbers determining submodule, for determining the polymerization grade The first CCE number where PDCCH on highest member carrier；

Relationship determination module constructs the PDCCH in the polymerization carrier wave on other member carriers for numbering according to the first CCE 2nd CCE at place numbers the corresponding relationship between the first CCE number, so that user equipment is according to the corresponding relationship And the first CCE number where the PDCCH on the obtained default member carrier of blind examination determines on other described member carriers The 2nd CCE number where PDCCH, and corresponding member carrier is detected according to the 2nd CCE number.

13. the blind examination device of polymerization carrier wave according to claim 12, which is characterized in that the default member carrier is institute State the highest member carrier of polymerization grade in the first member carrier or the polymerization carrier wave in polymerization carrier wave.

14. the blind examination device of polymerization carrier wave according to claim 12, which is characterized in that the relationship determination module packet It includes:

First relationship determines submodule, if the CCE number where the PDCCH on the first member carrier is other members The integral multiple of the polymerization grade of carrier wave, then the 2nd CCE where the PDCCH on other member carriers is numbered and the first member The first CCE number where PDCCH on carrier wave is identical；

Second relationship determines submodule, if the CCE number where the PDCCH on the first member carrier be not other at The integral multiple of the polymerization grade of member's carrier wave, then from the first CCE number first it is available and CCE number is the carrier wave The CCE number of the integral multiple of polymerization grade is the 2nd CCE number where the PDCCH on the carrier wave.

15. the blind examination device of polymerization carrier wave according to claim 12, which is characterized in that the relationship determination module packet It includes:

Second relationship determines submodule, and the 2nd CCE where PDCCH on other determining described member carriers is numbered and institute The first CCE number where stating the PDCCH on the highest carrier wave of polymerization grade is identical.

16. the blind examination device of polymerization carrier wave according to claim 15, which is characterized in that the blind examination device further include:

Indicating module, for when being scheduled to the first member carrier of user equipment, multiplexing to be across load in the first member carrier Carrier wave the instructions field CIF, the CIF of wave scheduling are used to indicate the highest member load of polymerization grade in the polymerization carrier wave Wave enables the user equipment to determine the highest member carrier of polymerization grade according to the CIF.

17. the blind examination device of polymerization carrier wave according to claim 12, which is characterized in that if any in the polymerization carrier wave CCE number where member carrier corresponds to the PDCCH on the default member carrier is not present, then using cycle labeling method to this The available CCE of member carrier carries out numbering cycle.

18. a kind of blind examination device for polymerizeing carrier wave, is applied to user equipment side characterized by comprising

Obtain module, for obtain the first CCE number where the PDCCH on default member carrier with polymerize in carrier wave other The corresponding relationship between the 2nd CCE number where PDCCH on member carrier；

First blind examination module, for determining the default member carrier；

Second blind examination module determines the PDCCH on the default member carrier for carrying out blind examination to the default member carrier First CCE at place is numbered；Second blind examination module includes: the first blind examination submodule, for first in the polymerization carrier wave Member carrier carries out blind examination, determines the first CCE number where the PDCCH on the first member carrier；

Detection module determines on other described member carriers for being numbered according to the corresponding relationship and the first CCE The 2nd CCE number where PDCCH detects corresponding member carrier according to determining the 2nd CCE number, wraps It includes:

19. the blind examination device of polymerization carrier wave according to claim 18, which is characterized in that the first blind examination module packet It includes:

Second blind examination submodule carries out blind examination for the first member carrier to polymerization carrier wave, determines the first member carrier On PDCCH where CCE number and indicate it is described polymerization carrier wave in the highest member carrier of polymerization grade CIF；

Third blind examination submodule, for determining the highest member carrier of the polymerization grade, the polymerization according to the CIF The highest member carrier of grade is the default member carrier.

20. the blind examination device of polymerization carrier wave according to claim 19, which is characterized in that the second blind examination module packet It includes:

4th blind examination submodule carries out blind examination for a member carrier highest to the polymerization grade, determines the polymerization The first CCE number where PDCCH on the highest member carrier of grade.

21. a kind of blind examination device for polymerizeing carrier wave, is applied to base station side characterized by comprising

It configures sending module and enables user equipment according to institute for being in advance the preset rules of user device configuration blind examination It states preset rules and blind examination is carried out to polymerization carrier wave；Wherein, the preset rules are to indicate user equipment to complete in polymerization carrier wave When portion or partial carrier wave carry out blind examination, preset candidate resource is only detected；

22. the blind examination device of polymerization carrier wave according to claim 21, which is characterized in that the preset candidate resource is One or more of the candidate resource of the polymerization carrier wave, and the number of the preset candidate resource is carried less than the polymerization All candidate resources of wave.